WO2019200616A1

WO2019200616A1 - Aggregate scheduling method, device, system, and storage medium

Info

Publication number: WO2019200616A1
Application number: PCT/CN2018/083978
Authority: WO
Inventors: 龚政委; 吴亮; 周国华; 彭金磷
Original assignee: 华为技术有限公司
Priority date: 2018-04-20
Filing date: 2018-04-20
Publication date: 2019-10-24

Abstract

An aggregate scheduling method, a device, a system, and a storage medium. The aggregate scheduling method comprises: a network device generating first signaling (S201), the first signaling being used to indicate the number of first transmission resource units required for a terminal device to transmit at least one data block in one aggregation scheduling, the number of the first transmission resource units being greater than or equal to 2; and the network device sending the first signaling to the terminal device (S202). As the number of the first transmission resource units is greater than or equal to 2, scheduling of a plurality of transmission resource units may be implemented by means of one scheduling, thereby improving data transmission rate.

Description

Aggregation scheduling method, device, system and storage medium

Technical field

The embodiments of the present application relate to communication technologies, and in particular, to an aggregation scheduling method, device, system, and storage medium.

Background technique

With the continuous development and evolution of technology, drone applications have gradually penetrated into all walks of life. Specifically, the drone has entered the fields of aerial photography, surveying and mapping, agricultural plant protection, etc. by carrying different mission equipment, and will become an important terminal component of the future Internet of Things. UAV communications require the use of cellular networks. However, the current cellular network supports the problem that the UAV communication at least faces the asymmetry of the uplink and downlink services, that is, the transmission rate of the uplink and downlink services of the UAV communication is greatly different. The downlink data of the UAV communication mainly transmits control commands and status information, and the transmission rate is about 60 Kbps to 100 Kbps; the uplink data of the UAV communication is mainly HD video data, and the transmission rate needs to reach about 50 Mbps, therefore, no The uplink and downlink service transmission rates of human-machine communication differ by about two to three orders of magnitude. In this way, if the uplink transmission of each time slot requires a Downlink Control Information (DCI) message scheduling, the downlink scheduling may be difficult. Therefore, one DCI message is required to schedule multiple uplink time slots.

In a 5G cellular network, a new radio interface (NR) supports an uplink single transport block (TB) multi-slot aggregation scheduling, that is, one DCI message schedules multiple time slots, and the terminal device is in the multiple The same transport block is sent multiple times on a time slot, and the coded versions of the transport blocks corresponding to different time slots are different. The transport block refers to the data size transmitted by one time slot.

UAV communication using the above prior art results in a relatively low data transmission rate.

Summary of the invention

The embodiment of the present application provides an aggregation scheduling method, device, system, and storage medium to improve data transmission rate.

In a first aspect, the embodiment of the present application provides an aggregation scheduling method, including: a network device generating first signaling, where the first signaling is used to indicate a first required by a terminal device to transmit at least one data block in an aggregation scheduling. And transmitting, by the network device, the first signaling to the terminal device.

Generating and transmitting the first signaling to the terminal device by using the network device, where the first signaling is used to indicate a number of the first transmission resource unit required by the terminal device to transmit the at least one data block in an aggregation scheduling, the first transmission The number of resource units is greater than or equal to 2. Since the number of the first transmission resource units is greater than or equal to 2, scheduling of the plurality of transmission resource units can be realized by one scheduling, thereby improving the data transmission rate.

In a possible implementation, after the network device sends the first signaling to the terminal device, the aggregation scheduling method may further include: the network device receiving the at least one data block on the transmission resource unit of the second transmission resource unit number; or The network device transmits at least one data block to the terminal device on the transmission resource unit of the second transmission resource unit number. The number of the second transmission resource unit is less than or equal to the number of the first transmission resource unit.

In a possible implementation, one data block corresponds to one transmission resource unit.

In a possible implementation manner, the first signaling may be a first DCI message. Under this embodiment, the following possible implementations exist:

In a possible implementation, the CBGTI field in the first DCI message is used to indicate the number of data blocks, the number of first transmission resource units, and the number of second transmission resource units, where the number of data blocks is equal to the number of second transmission resource units. The number of second transmission resource units is less than or equal to the number of first transmission resource units.

In a possible implementation manner, the number of bits in the CBGTI field is equal to the number of first transmission resource units.

In a possible implementation manner, the number of bit information in the CBGTI field is 0 or 1 is equal to the number of data blocks and the number of second transmission resource units, and the bit bit index value indication that the bit information in the CBGTI field is 0 or 1 The index value of the data block.

In a possible implementation, when the first DCI message is used for retransmission scheduling, the bit index value set to 0 or set in the CBGTI field is an index value corresponding to the retransmitted data block.

In a possible implementation manner, when the first DCI message is used for initial scheduling, the number of bits in the CBGTI field is equal to the number of data blocks and the number of second transmission resource units.

In a possible implementation, the data block may be a transport block or a coded block group.

In a possible implementation manner, when the data block is a coding block group, the number of coding block groups of the second transmission resource unit belongs to the same transmission block.

In a possible implementation manner, the first signaling is a first RRC message. At this point, there are also the following possible implementations:

In a possible implementation, after the network device sends the first signaling to the terminal device, the aggregation scheduling method further includes: the network device sending the second DCI message to the terminal device. The second DCI message includes a process number n.

In a possible implementation, when the second DCI message is the initial transmission scheduling, the second DCI message is used to indicate that the terminal device is in the first transmission resource according to the process number n and the number of the first transmission resource unit indicated by the first RRC message. The number of units of the first transmission resource unit is transmitted on the number of transmission resource units. Each data block corresponds to a different process number, and each data block corresponds to a different transmission resource unit, and the process numbers corresponding to different data blocks are respectively n, n+1, ..., n+N-1, and N represents data. The number of blocks and the number of first transmission resource units.

In a possible implementation, when the second DCI message is a retransmission schedule, the second DCI message is used to indicate that the terminal device sends the process number m of the initial scheduling according to the process number n and the first indication indicated by the first RRC message. The number N of transmission resource units is transmitted on the number of transmission resource units of the second transmission resource unit, and the number of data blocks of the second transmission resource unit is transmitted. The number of the second transmission resource unit is equal to m+Nn, and each data block corresponds to a different process number, and each data block corresponds to a different transmission resource unit, and the process numbers corresponding to different data blocks are respectively n, n+1. ,...,m+N-1, and n is greater than or equal to m.

In a possible implementation manner, the transmission resource unit may be at least one of a time domain resource unit, a frequency domain resource unit, and an air space resource unit. The time domain resource unit may be any one of a subframe, a transmission slot, a micro transmission slot, an OFDM symbol group, an OFDM symbol, and the like; the frequency domain resource unit may be any one of a carrier, a BWP, a subband, and the like. The spatial resource unit may be any one of a beam, a spatial transmission filter coefficient, and the like.

On the basis of the foregoing embodiments, in a possible implementation, before the network device sends the first signaling, the aggregation scheduling method further includes: the network device sends the second signaling, where the second signaling is used to indicate that the terminal device is enabled. Aggregate scheduling mode.

In a possible implementation manner, the second signaling may be the second RRC.

Further, the plurality of transmission resource units of the aggregation schedule includes a plurality of reference signal configurations, and one transmission resource unit includes a reference signal configuration.

In a possible implementation manner, the multiple reference signal configurations include: a reference signal configuration and a no reference signal configuration; or a first reference signal configuration and a second reference signal configuration, and the reference signal configuration includes a time-frequency domain location At least one of density.

In a possible implementation manner, the network device instructs the terminal device to adopt an associated reference signal configuration in the transmission resource unit by using association information between the predefined transmission resource unit index value and the reference signal configuration.

In a possible implementation manner, the aggregation scheduling method may further include: the network device sends association information between the transmission resource unit index value and the reference signal configuration, and indicates that the terminal device adopts an associated reference signal configuration in the transmission resource unit.

In a possible implementation manner, the data block size corresponding to different transmission resource units is calculated based on the number of REs available in addition to the RE used by the reference signal.

In a second aspect, the embodiment of the present application provides an aggregation scheduling method, including: receiving, by a terminal device, first signaling sent by a network device, where the first signaling is used to indicate that the terminal device transmits at least one data block in an aggregation scheduling. The number of the first transmission resource unit, the number of the first transmission resource unit is greater than or equal to 2; the terminal device parses the first signaling, and obtains the number of the first transmission resource unit.

Transmitting, by the network device, the first signaling to the terminal device, where the terminal device parses the first signaling to obtain a number of the first transmission resource unit, where the first signaling is used to indicate that the terminal device transmits at least one aggregation scheduling The number of first transmission resource units required for one data block, the number of the first transmission resource units being greater than or equal to two. Since the number of the first transmission resource units is greater than or equal to 2, scheduling of the plurality of transmission resource units can be realized by one scheduling, thereby improving the data transmission rate.

In a possible implementation, after the terminal device parses the first signaling and obtains the first transmission resource unit, the aggregation scheduling method further includes: the terminal device receiving the at least one data block on the transmission resource unit of the second transmission resource unit number Or the terminal device transmits at least one data block to the network device on the transmission resource unit of the second transmission resource unit number. The number of the second transmission resource unit is less than or equal to the number of the first transmission resource unit.

In a possible implementation manner, when the first DCI message is used for initial scheduling, the number of bits in the CBGTI field is equal to the number of data blocks and the number of the second transmission resource units.

In a possible implementation, the data block is a transport block or a coded block group.

In a possible implementation, after the terminal device receives the first signaling sent by the network device, the aggregation scheduling method further includes: the terminal device receiving the second DCI message sent by the network device, where the second DCI message includes the process number n.

In a possible implementation manner, when the second DCI message is the initial transmission scheduling, the terminal device is configured by the process number n and the first number of transmission resource units indicated by the first RRC message on the first transmission resource unit number of transmission resource units. Transmitting a number of data blocks of the first transmission resource unit. Each data block corresponds to a different process number, and each data block corresponds to a different transmission resource unit, and the process numbers corresponding to different data blocks are respectively n, n+1, ..., n+N-1, and N represents data. The number of blocks and the number of first transmission resource units.

In a possible implementation manner, when the second DCI message is a retransmission schedule, the terminal device sends the scheduled process number m according to the process number n and the first transmission resource unit number N indicated by the first RRC message, in the second The number of transmission resource units is transmitted on the number of transmission resource units, and the number of data blocks of the second transmission resource unit is transmitted. The number of the second transmission resource unit is equal to m+Nn, and each data block corresponds to a different process number, and each data block corresponds to a different transmission resource unit, and the process numbers corresponding to different data blocks are respectively n, n+1. ,...,m+N-1, and n is greater than or equal to m.

In a possible implementation manner, the transmission resource unit may be at least one of a time domain resource unit, a frequency domain resource unit, and an air space resource unit. The time domain resource unit may be any one of a subframe, a transmission slot, a micro transmission slot, an OFDM symbol group, an OFDM symbol, etc.; the frequency domain resource unit may be a carrier, a bandwidth part BWP, a subband, or the like. Either; the spatial resource unit may be any one of a beam, a spatial transmission filter coefficient, and the like.

On the basis of the foregoing, in a possible implementation, before the terminal device receives the first signaling sent by the network device, the aggregation scheduling method further includes: the terminal device receiving the network device, sending the second signaling, where the second signaling is used. The terminal device is instructed to enable the aggregation scheduling mode; the terminal device starts the aggregation scheduling mode.

In a possible implementation manner, the second signaling is a second RRC.

Further, the aggregated plurality of transmission resource units include a plurality of reference signal configurations, and one transmission resource unit includes a reference signal configuration.

In a possible implementation manner, the multiple reference signal configurations may include: a reference signal configuration and a no reference signal configuration; or a first reference signal configuration and a second reference signal configuration, and the reference signal configuration includes a time-frequency domain At least one of position and density.

In a possible implementation manner, the terminal device adopts an associated reference signal configuration in the transmission resource unit, and the association information between the transmission resource unit index value and the reference signal configuration is indicated by the network device by predefined.

In a possible implementation manner, the aggregation scheduling method may further include: the terminal device receives association information between the transmission resource unit index value and the reference signal configuration sent by the network device; and the terminal device adopts the association in the transmission resource unit according to the association information. Reference signal configuration.

In a third aspect, the embodiment of the present application provides a network device, including: a processing module, configured to generate first signaling, where the first signaling is used to indicate that a terminal device needs to transmit at least one data block in an aggregation scheduling. The number of the first transmission resource unit, the number of the first transmission resource unit is greater than or equal to 2; the transceiver module is configured to send the first signaling to the terminal device.

Based on the same inventive concept, since the principle of solving the problem of the network device corresponds to the solution in the method design of the first aspect, the implementation of the network device can refer to the implementation of the method, and the repeated description is not repeated.

In a fourth aspect, the embodiment of the present application provides a terminal device, including: a transceiver module, configured to receive a first signaling sent by a network device, where the first signaling is used to instruct the terminal device to transmit at least one data in an aggregation scheduling. The number of the first transmission resource unit, the number of the first transmission resource unit is greater than or equal to 2, and the processing module is configured to parse the first signaling to obtain the number of the first transmission resource unit.

Based on the same inventive concept, the principle of the terminal device to solve the problem corresponds to the solution in the method design of the second aspect. Therefore, the implementation of the terminal device can refer to the implementation of the method, and the repeated description is not repeated.

In a fifth aspect, an embodiment of the present application provides a network device, including: a processor and a memory. The memory is used to store instructions. The network device is operative to perform the method of any of the first aspects when the processor executes the instructions stored in the memory.

In a sixth aspect, an embodiment of the present application provides a terminal device, including: a processor and a memory. The memory is used to store instructions. The terminal device is operative to perform the method of any of the second aspects when the processor executes the instructions stored in the memory.

The seventh aspect, the embodiment of the present application provides a communication system, comprising the network device according to any one of the third aspect and the fifth aspect, and the terminal device according to any one of the fourth aspect and the sixth aspect .

In an eighth aspect, the embodiment of the present application provides a computer readable storage medium, when the instructions in the computer readable storage medium are executed by a processor of a network device, causing the network device to perform any one of the first aspects. Methods.

In a ninth aspect, the embodiment of the present application provides a computer readable storage medium, when the instructions in the computer readable storage medium are executed by a processor of a terminal device, causing the terminal device to perform any one of the second aspects. Methods.

In a tenth aspect, the embodiment of the present application provides a network device, including at least one processing element (or chip) for performing the method of the above first aspect.

In an eleventh aspect, the embodiment of the present application provides a terminal device, including at least one processing element (or chip) for performing the method of the above second aspect.

In a twelfth aspect, an embodiment of the present application provides a program for performing the method of the above first aspect when executed by a processor of a network device.

In a thirteenth aspect, the embodiment of the present application provides a program for performing the method of the above second aspect when executed by a processor of the terminal device.

In a fourteenth aspect, the embodiment of the present application provides a computer program product, including the program of the twelfth aspect.

In a fifteenth aspect, the embodiment of the present application provides a computer program product, including the program of the thirteenth aspect.

In a sixteenth aspect, the embodiment of the present application provides a chip, including: a processing module and a communication interface, where the processing module can perform the method of the above first aspect. Further, the chip further includes a storage module (eg, a memory) for storing an instruction, the processing module is configured to execute an instruction stored by the storage module, and the instruction stored in the storage module Execution of the processing module causes the processing module to perform the method of the first aspect described above.

In a seventeenth aspect, the embodiment of the present application provides a chip, including: a processing module and a communication interface, where the processing module can perform the method of the second aspect above. Further, the chip further includes a storage module (eg, a memory) for storing an instruction, the processing module is configured to execute an instruction stored by the storage module, and the instruction stored in the storage module Execution of the processing module causes the processing module to perform the method of the second aspect above.

These and other aspects of the present application will be more apparent from the following description of the embodiments.

DRAWINGS

FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present application;

FIG. 2 is a signaling diagram of an aggregation scheduling method according to an embodiment of the present disclosure;

FIG. 3 is a signaling diagram of an aggregation scheduling method according to another embodiment of the present disclosure;

FIG. 4 is a signaling diagram of an aggregation scheduling method according to another embodiment of the present disclosure;

FIG. 5 is a signaling diagram of an aggregation scheduling method according to another embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of a network device according to an embodiment of the present disclosure;

FIG. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of a network device according to another embodiment of the present disclosure;

FIG. 9 is a schematic structural diagram of a terminal device according to another embodiment of the present disclosure.

detailed description

It should be understood that “first”, “second” and the like in the embodiments of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or order. It is to be understood that the data so used may be interchanged where appropriate, so that the embodiments of the invention described herein can be implemented in a sequence other than those illustrated or described herein. In addition, the terms "comprises" and "comprises" and "the" and "the" are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or device that comprises a series of steps or units is not necessarily limited to Those steps or units may include other steps or units not explicitly listed or inherent to such processes, methods, products or devices.

Existing cellular communication systems, such as Global System for Mobile Communication (GSM), Wideband Code Division Multiple Access (WCDMA) mobile communication systems, Long Term Evolution (LTE) systems In such systems, the supported communications are primarily for voice and data communications. In general, a traditional base station (BS) supports a limited number of connections and is easy to implement. It should be noted that in LTE (4G, 4th generation mobile communication system), a base station may be referred to as an eNB (eNodeB, 4G base station, LTE base station); in a next generation (5G, fifth generation) mobile communication system (also Referred to as NR), the base station may be referred to as a gNB (gNodeB, 5G base station, NR base station).

The cellular communication system not only supports traditional communication, but also supports drone communication. As an example, the terminal device may be specifically a drone or other ground terminal that satisfies similar conditions.

The drone, also known as the drone, has experienced three stages in its technical development: the first stage of the 1900s and before, the military drone technology sprouting period, only solves the simple flight mission of the drone; the second stage 1910s- In the 1970s, the military drone technology gradually developed and applied to the investigation; the third stage was infiltrated into the civilian sector in the 1980s and later. In the past two years, due to mature technology, reduced costs, and policy-driven reasons, the UAV industry has developed rapidly, and market demand has increased at an annual rate of 1.3 times. For example, in 2015, the UAV-driven global industry application value space exceeded $127.3 billion.

UAV applications are infiltrating into all aspects of the traditional industry. From the simple underlying basic transportation functions, they carry different cargoes, turn to different mission equipment, and expand into the fields of aerial photography, surveying and mapping, agricultural plant protection, etc. Important terminal components, drones show three major trends:

First, flight intelligence

Future drones should be intelligent, not just passive flight instructions. UAVs should be able to self-determine, perceive airspace changes, and perform actions such as active avoidance and route re-planning through sensors, cameras, network control and other technologies.

Second, transmission broadband

In the future, UAV transmission should be broadband. It is required to be able to share the collected data with other devices in real time, cooperate and cope with the needs of different tasks, and support the data transmission requirements of 250Mbps for power patrol drones.

Third, functional diversification

In the future, the functions of drones should be diversified. In addition to being able to have the business capability of line-of-sight flight, it also needs to meet the business needs of over-the-horizon flight; in addition to the ability to keep information and anti-interference, avoid flight control and business information being tampered with. It is also necessary to meet the needs of timely interaction between information and other communication devices, and to coordinate the division of labor. All of this needs to be done via networking, while short-range communications (such as Wi-Fi, Bluetooth communication, etc.) cannot be met.

In line with the future development trend of drones, it is necessary to have a communication network that matches it, and it is necessary to do a good job of low-altitude coverage network protection. First of all, it is necessary to understand the needs of users, analyze the current situation, existing problems and development trends, and combine relevant safeguard measures to carry out reasonable organizational design. For example, the primary task of UAV networking is to realize the communication between UAVs and other communication devices, realizing network control of drones and real-time backhaul of information, pictures, videos, etc. during navigation. The quality of low-altitude coverage network directly affects the development process of UAV networking applications. In 2017, 3GPP gave a detailed description of the network requirements for UAV networking services as shown in Table 1.

Table 1

Based on the above, the cellular network supports the problem that the UAV communication at least faces the asymmetric of the uplink and downlink services. For this problem, the applicant believes that it can be scheduled by means of aggregation scheduling (one scheduling message scheduling multiple transmission resource units, and the transmission resource unit may be at least one of a time domain resource unit, a frequency domain resource unit or an air domain resource unit). Resolve. The time domain resource unit may be a subframe, a transmission slot, a micro transmission slot, an Orthogonal Frequency Division Multiplexing (OFDM) symbol group (a plurality of OFDM symbols), an OFDM symbol, or the like. The frequency domain resource unit may be one of a carrier, a bandwidth part (BWP), a subband, and the like; the spatial resource unit may be a beam and a spatial transmission filter. One of a coefficient (transition domain transmission filter) and the like.

And found during the research:

In a 4G cellular network, the ratio of the number of downlink subframes to uplink subframes is 2:3 in the Time Division Duplexing (TDD) subframe ratio mode of LTE. Therefore, there is one downlink subframe. The DCI schedules two uplink subframes. In this case, the uplink subframe is specifically scheduled by using an uplink index (UL index) in the Downlink Control Information (DCI) message. When both the Most Significant Bit (MSB) and the Least Significant Bit (LSB) in the UL index are set to 1, both uplink subframes are scheduled, so it is also an aggregation schedule in nature. . However, the aggregation granularity of the prior art is corresponding to the cell-level frame structure, and can only be applied in the TDD subframe configuration 0 format, and the DCI supporting one downlink subframe can be used to schedule two uplink subframes. Therefore, Application is limited.

In addition, LTE supports Transmission Time Interval Bundling (TTI bundling), that is, multiple transmission versions corresponding to the same transmission block are transmitted multiple times on multiple consecutive uplink subframes, and each transmission belongs to the same TTI bundling. (Every TTI) is handled by a HARQ process, and the uplink data transmission rate is relatively low.

In a 5G cellular network, the NR supports uplink single transport block multi-slot aggregation scheduling, that is, one DCI message schedules multiple time slots, and the terminal device transmits the same transport block multiple times on the multiple time slots, and the corresponding-time slot corresponding transmission The encoded version of the block is different. UAV communication using this prior art results in a relatively low uplink data transmission rate.

Therefore, for the problem that the uplink and downlink services are asymmetric in the UAV communication, the embodiment of the present application provides a new aggregation scheduling method, device, system, and storage medium, and at least one data block is transmitted by scheduling multiple transmission resource units. The data transmission rate may be further improved while solving the problem of asymmetric uplink and downlink services, wherein the data transmission rate may include at least one of an uplink data transmission rate and a downlink data transmission rate.

FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present application. As shown in FIG. 1 , the communication system includes a network device and at least one terminal device, where the terminal device is in the coverage of the network device and communicates with the network device to implement the technical solutions provided in the following embodiments of the present application.

The embodiments of the present application describe various embodiments in combination with a network device and a terminal device, and the network device and the terminal device can work in a licensed band or an unlicensed band, where:

A terminal device, which may also be called a user equipment (User Equipment, UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, User agent or user device. Illustratively, the terminal device may specifically be a drone or other ground terminal similar to the drone.

A network device, also known as a Radio Access Network (RAN) device, is a device that accesses a terminal device to a wireless network, and may be an eNB in an LTE system, or a relay station or an access point, or 5G. The network device in the network or the network device in the PLMN network in the future, or the new-generation base station gNB in the NR system, is not limited herein.

In addition, in the embodiment of the present application, the network device provides a service for the cell, and the terminal device communicates with the network device by using the transmission resource (for example, the time domain resource, the frequency domain resource, the airspace resource, and the like) used by the cell. The cell may be a cell corresponding to a network device (for example, a base station), and the cell may belong to a macro base station or a base station corresponding to a small cell. The small cell here may include: a metro cell, a micro cell, a pico cell, a femto cell, etc., and the small cell has a small coverage and a low transmission power. Suitable for providing high-speed data transmission services.

FIG. 2 is a signaling diagram of an aggregation scheduling method according to an embodiment of the present application. This embodiment provides an aggregation scheduling method, which is applied to a terminal device and a network device. As shown in FIG. 2, the method in this embodiment includes:

S201. The network device generates first signaling.

The first signaling is used to indicate the number of first transmission resource units required by the terminal device to transmit at least one data block in one aggregation scheduling. The number of the first transmission resource units is greater than or equal to two. The number of the first transmission resource unit is the maximum number of transmission resource units, that is, the number of transmission resource units used by one aggregation scheduling to transmit the most data. As described above, the transmission resource unit may be at least one of a time domain resource unit, a frequency domain resource unit, and an air space resource unit. Specifically, the time domain resource unit may be any one of a subframe, a transmission slot, a micro transmission slot, an OFDM symbol group (a plurality of OFDM symbol components), an OFDM symbol, and the like; the frequency domain resource unit may be a carrier, a BWP Any one of subbands and the like; the spatial resource unit may be any one of a beam, a spatial transmission filter coefficient, and the like. The following describes the transmission resource unit as a time slot as an example, but it should be noted that the time slot can be replaced with any one of the above transmission resource units.

It can be understood that transmitting at least one data block herein may include: transmitting at least one data block and/or receiving at least one data block. When the network device is the transmitting end, the first signaling is used to indicate the number of the first transmission resource unit required by the terminal device to receive the at least one data block in one aggregation scheduling; when the network device is the receiving end, the first signaling The number of first transmission resource units required to indicate that the terminal device transmits at least one data block in one aggregation schedule.

For the specific type of the first signaling, the embodiment of the present application does not limit it. For example, the first signaling may be the first DCI message, or the first signaling may be a first Radio Resource Control (RRC) message, or other semi-static scheduling message or other dynamic scheduling message.

When the first signaling is the first DCI message, the Code Block Group Transmission Indicator (CBGTI) field of the first DCI message may be multiplexed. The number of bits occupied by the CBGTI field may also be used to indicate the number of first transmission resource units in which the terminal device continuously transmits or receives data in one aggregation scheduling.

Illustratively, the CBGTI field can be represented by the number of bits: 0, 2, 4, 6, or 8. The application scenario of the embodiment of the present application is an aggregation scheduling. Therefore, optionally, the CBGTI field may be represented by the number of the following bits: 2, 4, 6, or 8. The number of the bits occupied by the CBGTI field is 8. The number of the first transmission resource unit scheduled by the terminal device in one aggregation is 8, for example, the number of time slots of the terminal device in one aggregation scheduling is 8.

S202. The network device sends the first signaling to the terminal device.

Correspondingly, the terminal device receives the first signaling sent by the network device.

S203. The terminal device parses the first signaling, and obtains a number of the first transmission resource unit.

Specifically, after receiving the first signaling, the terminal device parses the first signaling to obtain a number of first transmission resource units included or indicated therein.

In this embodiment, the first signaling is generated and sent by the network device to the terminal device, and the terminal device parses the first signaling to obtain the number of the first transmission resource unit, where the first signaling is used to indicate the terminal device. The number of first transmission resource units required to transmit at least one data block in an aggregation schedule, the number of the first transmission resource units being greater than or equal to two. Since the number of the first transmission resource units is greater than or equal to 2, scheduling of the plurality of transmission resource units can be realized by one scheduling, thereby increasing the data transmission rate.

After the network device is configured as the transmitting end (downlink transmission), after the network device sends the first signaling to the terminal device, the aggregation scheduling method may further include: the network device transmitting the at least one data on the transmission resource unit of the second transmission resource unit number Block to the terminal device. Correspondingly, after the terminal device parses the first signaling and obtains the number of the first transmission resource unit, the aggregation scheduling method may further include: the terminal device receiving the at least one data block on the transmission resource unit of the second transmission resource unit number.

Or, when the terminal device is the transmitting end (uplink transmission), the terminal device parses the first signaling, and after acquiring the first transmission resource unit number, the aggregation scheduling method may further include: the transmission resource of the terminal device in the second transmission resource unit number At least one data block is sent to the network device on the unit. Correspondingly, after the network device sends the first signaling to the terminal device, the aggregation scheduling method may further include: the network device receiving the at least one data block on the transmission resource unit of the second transmission resource unit number.

The number of the second transmission resource unit is less than or equal to the number of the first transmission resource unit. It can be understood that, in general, unless otherwise specified, the number of second transmission resource units is the same as the number of first transmission resource units at the time of initial transmission, that is, all transmission resource units are used for data transmission; Since the retransmission is data that occurs during the initial transmission or the previous retransmission, or the demodulation fails, at this time, the number of the second transmission resource unit is less than or equal to the number of the first transmission resource unit, that is, at least part of the transmission resource unit. Used for data transmission.

Taking the terminal device as the transmitting end as an example, the terminal device sends at least one data block to the network device on the transmission resource unit of the second number of transmission resource units, including: the terminal device is in the second transmission resource unit according to the preset time slot relationship. At least one data block is sent to the network device on the number of transmission resource units.

For the above preset time slot relationship, the following cases are distinguished:

1, if the LTE frequency division duplex (Frequency Division Duplexing, FDD), network equipment, such as base stations, in a first time slot n ₁ signaling transmitted, e.g. DCI messages, the corresponding terminal device indicating the time slot n ₁ +4 Send upstream data.

2. If it is LTE TDD, it needs to distinguish between TDD subframe matching mode 0 and TDD subframe matching mode 1 to TDD subframe matching mode 6. Network devices, such as base stations, in a first time slot n ₁ signaling transmitted, e.g. DCI message indicating the terminal device in the time slot n ₁ + k uplink data transmission, the specific values of k are shown in Table 2.

Table 2

Referring to Table 2, for the TDD subframe matching mode 1 to the TDD subframe matching mode 6, if the terminal device receives the Physical Downlink Control Channel (PDCCH) in the subframe n ₁ (DCI format) 0/4, corresponding to the new transmission or adaptive retransmission) or the Physical Hybrid-ARQ Indicator Channel (PHICH) (only the negative acknowledgement NACK is received, corresponding to the non-adaptive retransmission), then the terminal device will The subframe n ₁ +k transmits a corresponding Physical Downlink Shared Channel (PUSCH).

3, if 5G NR, K2 is a field in the DCI message indicates n receives the uplink scheduling _a time slot, a corresponding indication of the terminal apparatus ₁ transmits uplink data K2 + n.

Here, the uplink data corresponds to at least one data block as described above.

Correspondingly, the network device receives the uplink data in the corresponding time slot according to the preset time slot relationship.

It can be understood that the network device receives the uplink data in a plurality of consecutive time slots of the time slot according to the preset time slot relationship starting from the time slot in which the uplink data is started.

In the above embodiment, one data block corresponds to one transmission resource unit, that is, one transmission resource unit is used to transmit one data block, and the two are in a one-to-one correspondence.

Based on the above embodiments, the following details of the types of the first signaling are described in detail.

First, the first signaling is the first DCI message.

In an implementation manner, the CBGTI field in the DCI message (referred to generally refers to all DCI messages, including the first DCI message) is multiplexed.

FIG. 3 is a signaling diagram of an aggregation scheduling method according to another embodiment of the present disclosure. This embodiment provides an aggregation scheduling method, which is applied to a terminal device and a network device. In this embodiment, the data block is specifically a transport block. As shown in FIG. 3, the method in this embodiment may include:

S301. The network device generates a first DCI message.

The first signaling in this embodiment is a first DCI message. Specifically, the CBGTI field of the first DCI message may be multiplexed, indicating the number of transport blocks, the number of first transmission resource units, and the number of second transmission resource units in one aggregation schedule. The number of the transporting blocks is the same as the number of the second transmission resource units, and the number of the second transmission resource units is less than or equal to the number of the first transmission resource units.

It can be understood that when the first DCI message is used for the initial transmission scheduling, the number of the transport blocks and the number of the second transmission resource units are the same as the number of the first transmission resource units, and are all integers greater than 1. The number of second transmission resource units is used to indicate the number of transmission resource units of the actually transmitted transport block.

The number of bits in the CBGTI field is equal to the number of the first transmission resource unit. The CBGTI field occupies N1 bits, one bit corresponds to one transport block, and the information contained in the bit is used to determine whether its corresponding transport block needs to be transmitted. Specifically, the number of bit information in the CBGTI field is 0 or 1 is equal to the number of transport blocks and the number of second transmission resource units, and the bit index value in which the bit information in the CBGTI field is 0 or 1 indicates the index value of the transport block. . That is to say, the bit in the CBGTI field whose bit information is 0 or 1 is the bit corresponding to the transport block to be transmitted. Therefore, when the first DCI message is used for retransmission scheduling, the bit index value set to 0 or set in the CBGTI field is an index value corresponding to the retransmission transport block; when the first DCI message is used for initial transmission scheduling, in the CBGTI field The number of bits is equal to the number of transport blocks and the number of second transmission resource units.

S302. The network device sends a first DCI message.

Correspondingly, the terminal device receives the first DCI message.

S303. The terminal device parses the first DCI message, and obtains the number of transport blocks, the number of first transmission resource units, and the number of second transmission resource units.

Optionally, the terminal device determines, according to the CBGTI field in the first DCI message, the number of the transport blocks that are aggregated and scheduled, the number of the second transmission resource units, and the number of the first transmission resource units. Thereafter, the terminal device performs S304.

S304. The terminal device sends N1 transport blocks to the network device on the transmission resource unit of the second number of transmission resource units.

Wherein, in the initial transmission, N1 is an integer greater than 1; when retransmitting, N1 is an integer greater than or equal to 1.

Optionally, the terminal device sends, according to the preset time slot relationship, N1 transport blocks in consecutive N1 transmit resource units that can perform uplink transmission, and each transport resource unit transmits one transport block, and each transport block follows There is no CBG configuration processing, that is, each bit in the CBGTI field corresponds to one transport block. The N1 transport blocks transmitted by the N1 transmission resource units all adopt the frequency domain resource allocation indication, the time domain resource allocation indication, the Modulation and Coding Scheme (MCS), and the encoded version indicated in the first DCI message. Redundancy Version, RV), etc.

When the transmission resource unit is a time slot, if the consecutive N1 time slots capable of uplink transmission exist, the terminal device cannot follow the time domain symbol indicated in the first DCI message due to the Slot Format Indicator (SFI) configuration. (symbol) for uplink transmission, the uplink transmission of the time slot is ignored. It can be understood that one time slot is the time granularity of one scheduling, and the time length of the time slot and the number of symbols included are related to the interval of the subcarriers and the configuration of the cyclic protection interval CP. For example, the subcarrier spacing is 15 kHz, the normal CP length is used, the time length of the time slot is 1 ms, and the 1 time slot contains 14 symbols, some of which are used for uplink transmission and partly for downlink transmission. The symbol specifically occupied by the uplink transmission is configured in the first DCI message. Because it is an aggregation scheduling, multiple timeslots are indicated by a first DCI message. It is possible that the SFI configurations corresponding to the multiple time slots are different, and there is no uplink symbol corresponding to the first DCI message in some time slots. In the aggregation scheduling, the network device and the terminal device ignore the time slot at this time, that is, the terminal device does not transmit the transmission block in this time slot, and the network device does not receive the corresponding transmission block in this time slot.

Correspondingly, the network device receives the uplink data of the N1 uplink time slots in the corresponding time slot according to the preset time slot relationship.

Exemplarily, for the above N1 transport blocks, if the network device does not correctly demodulate several of the transport blocks, the retransmission scheduled transport block may be retransmitted. Therefore, the aggregation scheduling method of this embodiment may further include:

S305. The network device demodulates N1 transport blocks.

If the M1 transport blocks in the N1 transport blocks fail to demodulate, the network device performs retransmission scheduling on the M1 transport blocks that have failed to be demodulated. Wherein N1 is used to represent the total number of transport blocks, M1 is an integer greater than 0, and M1 is less than or equal to N1.

Optionally, the network device performs retransmission scheduling on the M1 transport blocks that are demodulated, and may include: the network device adopts another DCI message (eg, a third DCI message) different from the first DCI message, and demodulates the failed M1. The transport blocks are retransmitted. For example, the network device may set or set the bit position of the M1 transport blocks corresponding to the demodulation failure in the CBGTI field corresponding to the demodulated transmission block to 1 to indicate that the demodulated transmission block needs to be retransmitted.

S306. The terminal device receives a third DCI message sent by the network device.

The third DCI message is used to perform retransmission scheduling on the M1 transport blocks that are demodulated.

The terminal device parses the third DCI message, and determines, according to the CBGTI field in the third DCI message, a transport block that needs to be retransmitted, that is, the transport block that is retransmitted is a transport block that is demodulated and failed at the network device in the initially transmitted transport block. It may be a partial transport block or a full transport block in the initial transmission block. Wherein, the data transmission in the embodiment is in the granularity of the transport block.

S307. The terminal device retransmits the M1 transport blocks that failed to be demodulated.

In this embodiment, a first DCI message can be used to schedule uplink transmission of multiple transport blocks in multiple transmission resource units, and each transmission resource unit transmits one transport block, which is repeatedly transmitted through multiple time slots according to the prior art. The implementation of the transport block reduces the requirement of the uplink DCI message; in addition, since different transmission resource units correspond to different transport blocks, the transmission rate of the uplink data is also improved.

In addition, the data block may also be a Code Block Group (CBG). When the data block is a coded block group, the number of coded block groups of the second transmission resource unit belongs to the same transport block. It can be understood that one transport block is divided into N coded block groups, and N code block groups are successively mapped to N transmission resource units.

FIG. 4 is a signaling diagram of an aggregation scheduling method according to another embodiment of the present disclosure. This embodiment provides an aggregation scheduling method, which is applied to a terminal device and a network device. In this embodiment, the data block is a coded block group. As shown in FIG. 4, the method in this embodiment may include:

S401. The network device generates a first DCI message.

The first signaling in this embodiment is a first DCI message. Specifically, the CBGTI field of the first DCI message may be multiplexed, where the CBGTI field is used to indicate the number of the coding block groups included in the transport block, the number of the first transmission resource unit, and the number of the second transmission resource unit, and the coding block group included in the transport block. The number of the second transmission resource unit is the same as the number of the second transmission resource unit, and the number of the second transmission resource unit is less than or equal to the number of the first transmission resource unit.

Wherein, one coding block group corresponds to one transmission resource unit.

It can be understood that when the first DCI message is used for initial transmission scheduling, the number of coding block groups and the number of second transmission resource units are the same as the number of the first transmission resource unit, and are all integers greater than 1. The number of second transmission resource units represents the number of transmission resource units actually used to transmit the coded block group.

The number of bits in the CBGTI field is equal to the number of the first transmission resource unit. The CBGTI field occupies N1 bits, one bit corresponds to one coded block group, and the information contained in the bit is used to determine whether its corresponding coded block group needs to be transmitted. Specifically, the number of bit information in the CBGTI field is 0 or 1 equal to the number of coding block groups and the number of second transmission resource units, and the bit position index value of the bit information in the CBGTI field is 0 or 1 indicating the coding block group. Index value. That is to say, the bit in the CBGTI field whose bit information is 0 or 1 is the bit corresponding to the coded block group to be transmitted. Therefore, when the first DCI message is used for retransmission scheduling, the bit index value set to 0 or set in the CBGTI field is an index value corresponding to the retransmission coded block group; when the first DCI message is used for initial transmission scheduling, the CBGTI field is used. The number of bits in the middle is equal to the number of coded block groups and the number of second transmission resource units.

S402. The network device sends a first DCI message.

Correspondingly, the terminal device receives the first DCI message.

S403. The terminal device parses the first DCI message, and obtains a number of coding block groups, a first transmission resource unit number, and a second transmission resource unit number included in the transport block.

Optionally, the terminal device determines, according to the CBGTI field in the first DCI message, the number of the first transmission resource unit, the number of the second transmission resource unit, and the number of the coding block group included in the transmission block. Thereafter, the terminal device performs S404.

S404. The terminal device sends N2 coded block groups to the network device on the transmission resource unit of the second number of transmission resource units.

Wherein, in the initial transmission, N2 is an integer greater than 1, the number of the first transmission resource unit is equal to N2, and the number of the second transmission resource unit is equal to N2. When retransmitting, N2 is an integer greater than or equal to 1.

In an actual application, the terminal device determines, according to the CBGTI field in the first DCI message, the number of the first transmission resource unit in the aggregation scheduling, and according to the preset time slot relationship, in consecutive N2 transmission resource units that can perform uplink transmission. A transport block is transmitted, and the transport block is mapped to N2 consecutive transport resource units that can perform uplink transmission by the number of coded block groups indicated by the CBGTI field in the first DCI message. For example, the terminal device may divide one transport block into N2 code block groups, and each time slot transmits one code block group.

Exemplarily, for the foregoing one transport block, if the network device does not correctly demodulate a plurality of coding block groups, the retransmission scheduling of the demodulated coded block group may be performed. Therefore, the aggregation scheduling method of this embodiment may further include:

S405. The network device demodulates N2 coding block groups.

If the M2 coded block groups in the N2 coded block groups fail to demodulate, the network device performs retransmission scheduling on the M2 coded block groups that have failed to be demodulated. Wherein, N2 is used to indicate the number of coding block groups included in the above transport block, M2 is used to indicate the number of coding block groups in which demodulation fails, M2 is an integer greater than 0, and M2 is less than or equal to N2.

Optionally, the network device performs retransmission scheduling on the M2 coded block groups that are demodulated, and may include: the network device uses the fourth DCI message to perform retransmission scheduling on the M2 coded block groups that are demodulated. That is, the network device performs retransmission scheduling through the CBGTI field of the fourth DCI message. For example, the network device may set or set the bit position corresponding to the demodulated coded block group in the CBGTI field of the fourth DCI message to 1 to indicate that the demodulated failed code block group needs to be retransmitted.

S406. The terminal device receives a fourth DCI message sent by the network device.

The fourth DCI message is used to perform retransmission scheduling on the M2 coded block groups that are demodulated.

The terminal device parses the fourth DCI message, and determines, according to the CBGTI field in the fourth DCI message, a coded block group that needs to be retransmitted, that is, a coded block group that the network device demodulates fails.

S407. The terminal device retransmits the M2 coded block groups that have failed to be demodulated.

It can be understood that the retransmitted coding block group is a coding block group in which the demodulation fails at the network device in the initially transmitted coding block group, which may be a part of the coding block group or the entire coding block group in the initial transmission coding block group. Wherein, the data transmission in the embodiment is granular in the coding block group.

In this embodiment, a first DCI message can be used to schedule uplink transmission of one transport block in multiple transmission resource units. Compared with the prior art, the implementation of the same transport block by multiple time slots reduces the uplink DCI message. In addition, since different transmission resource units correspond to different coding block groups of the transport block, the transmission rate of the uplink data is also improved.

Optionally, the data block size corresponding to the different transmission resource units is calculated based on the number of REs available except for the resource element (RE) used by the reference signal.

Under non-aggregated scheduling, the size of the transport block is calculated from the number of available resource units RE within a single transport resource. Under aggregation scheduling, the size of the transport block needs to be calculated based on the sum of the number of available resource units RE within multiple transmission resources.

For example, the transmission resource unit is used as a time slot. The transport block size (TBS) corresponding to the transport block may be determined according to the number of time slots, specifically:

In the above formula, N _{info is} used to indicate the transport block size corresponding to the transport block.

Used to indicate the number of available REs in the i-th transmission resource unit, and R ^{i is} used to represent the coding rate of the i-th transmission resource unit,

The order indicating the modulation of the i-th transmission resource unit, v ^{i is} used to indicate the number of layers of data transmission of the i-th transmission resource unit, and N _{slot is} used to indicate the number of slots.

The N2 coded block groups transmitted in the N2 time slots use the same frequency domain resource allocation indication, time domain resource allocation indication, and the like.

If there are N2 time slots that can be uplinked due to the SFI configuration, the terminal device cannot perform uplink data transmission according to the time domain symbol indicated in the first DCI message, and the uplink transmission of the time slot is ignored.

2. The first signaling is a first Radio Resource Control (RRC) message.

FIG. 5 is a signaling diagram of an aggregation scheduling method according to another embodiment of the present disclosure. This embodiment provides an aggregation scheduling method, which is applied to a terminal device and a network device. The data block in this embodiment is a transport block. As shown in FIG. 5, the method in this embodiment may include:

S501. The network device generates a first RRC message.

The first signaling in this embodiment is a first RRC message, and the first RRC message indicates the number of first transmission resource units.

It can be understood that one transport block corresponds to one transmission resource unit.

S502. The network device sends a first RRC message to the terminal device.

Correspondingly, the terminal device receives the first RRC message.

Afterwards, the terminal device parses the first RRC message to obtain the number of the first transmission resource unit.

S503. The network device sends a second DCI message to the terminal device.

The second DCI message includes a process number n. The process ID is, for example, the process ID of the HARQ process. Since the second DCI message can schedule multiple transmission resource units, and the process number corresponding to each transmission resource unit is different, and the second DCI message includes only one process number, the process ID included in the second DCI message can be understood. The smallest process number corresponding to the multiple transmission resource units.

When the second DCI message is the initial transmission scheduling, the second DCI message is used to instruct the terminal device to use the number of the first transmission resource unit indicated by the process number n and the first RRC message, on the number of transmission resource units of the first transmission resource unit. Transmitting a number of transmission blocks of the first transmission resource unit. Each transport block corresponds to a different process number, and each transport block corresponds to a different transmission resource unit, and the process numbers corresponding to different transport blocks are respectively n, n+1, ... n+N-1, and N represents transmission. The number of blocks and the number of first transmission resource units.

Or, when the second DCI message is a retransmission schedule, the second DCI message is used to indicate that the terminal device sends the scheduled process number m according to the process number n and the first transmission resource unit number indicated by the first RRC message, The number of the second transmission resource unit transmits the number of the second transmission resource unit and the number of the transmission block. The number of the second transmission resource unit is equal to m+Nn, and each transport block corresponds to a different process number, and each transport block corresponds to a different transmission resource unit, and the process numbers corresponding to different transport blocks are respectively n, n+1. ,...,m+N-1, and n is greater than or equal to m.

Correspondingly, the terminal device receives the second DCI message.

S504. The terminal device sends N3 transport blocks to the network device according to the process ID in the second DCI message and the number of the first transmission resource unit indicated by the first RRC message.

In the initial transmission, N3 is an integer greater than 2; when retransmitting, N3 may take a value of 1, or N3 is a value less than or equal to the number of initially transmitted transport blocks.

Specifically, the terminal device parses the first RRC message, determines the number N of the first transmission resource unit of the aggregation scheduling, and sends N transmissions in consecutive N transmission resource units capable of uplink transmission according to the preset time slot relationship. Block, one transport block is transmitted in each transmission resource unit, and each transmission resource unit corresponds to one process, for example, sending N consecutive HARQ processes in the number of N consecutive transmission resource units that can transmit uplink data (n, n +1, ..., n + N-1) transport block.

Correspondingly, the network device receives N3 transport blocks.

Illustratively, for the N3 transport blocks, if some or all of them are not correctly demodulated on the network device side, the network device will schedule the terminal device to perform retransmission. Therefore, the aggregation scheduling method of this embodiment may further include:

S505. The network device demodulates N3 transport blocks.

S506. The network device determines a minimum process number among the process numbers corresponding to the transport block that is demodulated.

For example, if the transport block carried by the first transmission resource unit (corresponding to the process number is n), that is, the demodulation fails, the network device determines that the process number corresponding to the retransmission schedule is n, and n is the process corresponding to the transport block that failed the demodulation. The smallest process number in the number; if the transport block carried by the n1+1th transmission resource unit (corresponding process number is n+n1) demodulation fails, and the transport block carried by the transmission resource unit before the n1th transmission resource unit is If the demodulation is correct, the network device determines that the process number corresponding to the retransmission schedule is n+n1, and n+n1 is the smallest process number among the process numbers corresponding to the demodulation failed transport block.

The network device retransmits the transport block corresponding to the smallest process number and the subsequent process number.

Optionally, the network device retransmitting the transport block corresponding to the smallest process ID and the subsequent process number may include: determining that the initial transmit uplink data is transmitted by using the coded block group; and according to the manner of encoding the block group transmission, Retransmission scheduling is performed on the transport block corresponding to the smallest process number and its subsequent process number. For example, the smallest process number is carried by the fifth DCI message.

Specifically, the network device performs retransmission scheduling according to the manner in which the initial uplink data is transmitted by using the coded block group.

Manner 1: If the network device transmits the coded block group in the initial transmission of the uplink data, that is, the CBGTI field indicates the mode of the coded block group transmission, each of the transport blocks is transmitted in the manner of the coded block group transmission. When the network device demodulates each transport block, according to the demodulation condition of each coding block group, the coded block group that the transport block needs to retransmit is obtained, and then the network device can feed back the CBGTI corresponding to the demodulated coded block group, and It is carried in the fifth DCI message and sent to the terminal device for retransmission scheduling. The coded block group indicating the demodulation failure of the feedback indicates the coding block group error indication including all the N3 transport blocks, that is, the coded block group indication that the feedback demodulation fails is the demodulation failure of the N3 transport blocks separately. The collection of coded block groups indicated. For example, suppose two transport blocks, each of which is divided into four coding block groups, the coded block group in which the demodulation fails in the first transport block is 0101, and the demodulated failed code block group in the second transport block Is 1100, assuming that 1 represents a demodulated failed coding block group, that is, the second and fourth coding block groups in the first transmission block fail to demodulate, and the first and second in the second transmission block If the demodulation of the coded block group fails, the coded block group indication that the terminal device feeds back to the network device fails to be 1101, that is, the first, second, and fourth code block group solutions in each transport block are fed back. Tune failed.

Manner 2: If the network device does not use the coded block group transmission mode when transmitting the initial transmission block, the retransmission scheduling is not performed by using the coded block group transmission mode.

S507. The terminal device receives a fifth DCI message for retransmission scheduling.

Then, the terminal device parses the fifth DCI message, and determines whether to perform retransmission by using the coded block group transmission according to the CBGTI field in the fifth DCI message, and if retransmission is performed by using the coded block group transmission manner, all retransmissions are performed. The transport block may be retransmitted by means of the coded block group transmission indicated by the CBGTI field in the fifth DCI message; otherwise, the coded block group transmission is not used for retransmission.

S508. The terminal device determines that the fifth DCI indication is retransmitted by using a coded block group transmission.

S509. The terminal device retransmits the process ID in the fifth DCI message and the transport block corresponding to the process ID in the manner of the foregoing coding block group transmission.

The terminal device determines, according to the process ID in the fifth DCI message, the retransmitted transport block: if the retransmission corresponding to the process number is n, the terminal device retransmits all the transport blocks; if the corresponding process number is retransmission of n+n1 Then, the terminal device retransmits the transport block whose process number is n+n1 and the process corresponding to the subsequent process, that is, the process before the default n+n1 implements the correct transmission.

It can be understood that the retransmitted transport block is a transport block in the initial transmission block that fails to demodulate at the network device, which may be part or all of the initial transmitted transport block.

The difference between the embodiment and the foregoing embodiment is that the number of the transmission resource units that are aggregated and scheduled in the embodiment is notified to the terminal device by using the first RRC message; the retransmission mode of the demodulated transmission block needs to be combined with the transmission resource of the aggregation scheduling. The number of units and the process number indicated in the fifth DCI and the CBGTI field are determined.

In this embodiment, the uplink transmission of multiple transmission resource units can be scheduled by using a first RRC message. Compared with the prior art, the implementation of the same transmission block is performed by using multiple time slots, which reduces the requirement of the uplink DCI message. Different transmission resource units correspond to different transport blocks, and the transmission rate of uplink data is also improved.

The foregoing embodiment is described by using the foregoing transmission as an example. The specific implementation of the downlink transmission is similar to the uplink transmission, and details are not described herein again.

On the basis of the foregoing embodiment, the aggregation scheduling method further includes: before the network device sends the first signaling, the network device sends the second signaling. Correspondingly, the terminal device receives the second signaling before receiving the first signaling sent by the network device, and starts the aggregation scheduling mode. The second signaling is used to instruct the terminal device to enable the multi-slot aggregation scheduling mode. The aggregation scheduling mode includes at least one of an uplink aggregation scheduling mode and a downlink aggregation scheduling mode. It can be understood that the step is an optional step for informing the terminal device to enable the multi-slot aggregation scheduling mode by the second signaling before the aggregation scheduling, so as to implement the subsequent aggregation scheduling.

Optionally, the second signaling may be a second RRC message.

Next, based on the above embodiment, the following embodiment changes the configuration of the reference signal under the aggregation schedule.

When the terminal device is a drone, the channel between the terminal device and the network device is relatively flat, which is embodied in:

The UAV channel is dominated by the line of sight (LOS) channel, especially 100 meters (corresponding to the Urban Macro (Uma) scene. If it is a Rural Macro (RMa) scene, then Above 40 meters), the probability of the LOS channel is 100%. Research shows that the channel between network equipment (such as base station) and UAV is mainly direct path, and other multipath components are relatively small, so that the coherent bandwidth of the UAV channel is larger and the frequency domain is flat. And because the mobile phone's mobile speed (usually 30-70km / h, the civil aviation law stipulates the fastest 160km / h) caused by the channel time domain changes compared to the current cellular network LTE / NR design, the time domain is relatively flat. It should be noted that the present application does not limit the scenario in which the channel is flat only in the terminal device of the drone. Any other type of terminal may adopt the following reference signal as long as the channel characteristics as described below are satisfied. Configuration and transfer methods.

In a scenario where the channel is flat, the channel of the plurality of transmission resource units scheduled for aggregation does not change much, and it is not necessary to configure each transmission resource unit with a reference signal of the same density. A plurality of aggregated scheduled transmission resource units share reference signals within one or more of the "specific" transmission resource units. The specific transmission resource unit may be a predefined initial transmission resource unit, or may be configured through an RRC message or other manner. For example, if the sequence number of the N timeslots in which the specific time slot is located can be used, for example, if the 4th time slot is specified as the specific time slot, the network device sends a sequence of 1000 to the terminal device. Therefore, the embodiment of the present application reduces the overhead of the reference signal by adding a reference signal, such as a DMRS, to a part of the plurality of transmission resource units of the aggregation resource unit. Among them, DMRS is used for channel estimation and data demodulation.

Optionally, the plurality of transmission resource units of the aggregation schedule includes a plurality of reference signal configurations, and one of the transmission resource units includes a reference signal configuration. The terminal device adopts different reference signal configurations on the aggregated transmission resource unit according to the indication of the network device.

The plurality of reference signal configurations may include: a reference signal configuration and a no reference signal configuration; or a first reference signal configuration and a second reference signal configuration. The reference signal configuration includes at least one of a time-frequency domain position, a density, and the like.

In a specific implementation, the reference signal configuration in the specific transmission resource unit may refer to the RRC message and the DCI message, and the reference signal configuration in the other transmission resource unit may adopt a lower density reference signal, for example:

The demodulated signal in the other transmission resource unit has no reference signal, and the channel estimation multiplexes the reference signal of the specific transmission resource unit;

Or, if the specific transmission resource unit uses a 2 symbol front loaded reference signal, the reference signal in the other transmission resource unit adopts a 1 symbol pre-reference signal;

Alternatively, if a particular transmission resource unit has an additional reference signal, the other transmission resource units may not need to configure additional reference signals, and so on.

Based on the foregoing, the network device instructs the terminal device to adopt an associated reference signal configuration in the transmission resource unit by using the association information between the predefined transmission resource unit index value and the reference signal configuration. Alternatively, the aggregation scheduling method may further include: the network device sends association information between the transmission resource unit index value and the reference signal configuration, and indicates that the terminal device adopts an associated reference signal configuration in the transmission resource unit. Corresponding to the network device, the terminal device receives the association information between the transmission resource unit index value and the reference signal configuration sent by the network device; and the terminal device uses the associated reference signal configuration in the transmission resource unit according to the association information.

Illustratively, the network device indicates a resource index of at least one transmission resource unit of the terminal device, such as a resource index of a particular transmission resource unit. Optionally, the network device indicates that the terminal device does not add a reference signal to the transmission resource unit that is outside the resource index.

Before the transmission of the transmission block by the terminal device and the network device, the aggregation scheduling method further includes: determining, by the terminal device, a specific transmission resource unit configured by the reference signal, where the specific transmission resource unit is one or more of the plurality of transmission resource units scheduled to be aggregated, Other transmission resource units multiplex reference signals in the particular transmission resource unit and reduce or even not add their own reference signals.

Due to the multiplexing of reference signals between different transmission resource units, the reference signal overhead in different transmission resource units is different, resulting in a change in the available transmission resource unit size, and therefore, a transmission resource corresponding to the resource index The transport block size of the unit is recalculated based on the available transport resource unit size.

Taking the transmission resource unit as a time slot as an example, any of the following optional operations may be adopted:

The first type: different TBSs of different transport blocks in different time slots, and TBS corresponding to different time slots are calculated based on different reference signal overheads.

For example, assuming that the available RE number of a specific time slot is N_RE_1 and the available RE number of other time slots is N_RE_2, the TBS of the other time slots is a result obtained by multiplying the TBS of the specific time slot by N_RE_2 and dividing by N_RE_1.

Second: the TBSs of different transport blocks in different time slots are the same, and rate matching is calculated based on different DMRS overheads, which is equivalent to changing the code rate.

Third: the TBSs of the transport blocks corresponding to the multiple time slots are equal, and are average values obtained based on the overall reference signal overhead in the multiple time slots.

In this embodiment, the reference signal multiplexing between different time slots can reduce the overhead of the reference signal, thereby increasing the TBS or improving the MCS, and improving the throughput and reliability of the communication system.

FIG. 6 is a schematic structural diagram of a network device according to an embodiment of the present disclosure. As shown in FIG. 6, the network device 60 includes a processing module 61 and a transceiver module 62. among them,

The processing module 61 is configured to generate first signaling. The first signaling is used to indicate the number of first transmission resource units required by the terminal device to transmit at least one data block in one aggregation scheduling. The number of first transmission resource units is greater than or equal to two.

The transceiver module 62 is configured to send the first signaling to the terminal device.

The network device in this embodiment may be used to perform the steps performed by the network device in the foregoing embodiments. The specific implementation principles and technical effects are similar, and details are not described herein again.

Optionally, the transceiver module 62 is further configured to: after transmitting the first signaling to the terminal device, receive at least one data block on the transmission resource unit of the second transmission resource unit number; or, send the first signaling to After the terminal device, at least one data block is transmitted to the terminal device on the transmission resource unit of the second transmission resource unit number. The number of the second transmission resource unit is less than or equal to the number of the first transmission resource unit.

It can be understood that one data block corresponds to one transmission resource unit.

Optionally, the first signaling may be a first DCI message.

In an implementation manner, the CBGTI field in the first DCI message is used to indicate the number of data blocks, the number of first transmission resource units, and the number of second transmission resource units, where the number of data blocks is equal to the number of second transmission resource units, and second. The number of transmission resource units is less than or equal to the number of first transmission resource units.

Optionally, the number of bits in the CBGTI field is equal to the number of first transmission resource units.

Further, the number of bit information in the CBGTI field is 0 or 1 equal to the number of data blocks and the number of second transmission resource units, and the bit position index value of the bit information in the CBGTI field is 0 or 1 indicating the index value of the data block. .

In some embodiments, when the first DCI message is used for retransmission scheduling, the bit position index set to 0 or set in the CBGTI field is an index value corresponding to the retransmitted data block. Alternatively, when the first DCI message is used for initial transmission scheduling, the number of bits in the CBGTI field is equal to the number of data blocks and the number of second transmission resource units.

In the above embodiment, the data block may be a transport block or a coded block group. Optionally, when the data block is a coded block group, the number of coded block groups of the second transmission resource unit belongs to the same transport block.

Optionally, the first signaling is a first RRC message.

On the basis of the above, the transceiver module 62 is further configured to: after sending the first signaling to the terminal device, send the second DCI message to the terminal device, where the second DCI message includes the process number n.

When the second DCI message is the initial transmission scheduling, the second DCI message is used to instruct the terminal device to use the number of the first transmission resource unit indicated by the process number n and the first RRC message, on the number of transmission resource units of the first transmission resource unit. Transmitting a number of data blocks of the first transmission resource unit. Each data block corresponds to a different process number, and each data block corresponds to a different transmission resource unit, and the process numbers corresponding to different data blocks are respectively n, n+1, ..., n+N-1, and N represents data. The number of blocks and the number of first transmission resource units.

Or, when the second DCI message is a retransmission schedule, the second DCI message is used to indicate, by the terminal device, the process number m of the initial transmission according to the process number n, and the number of the first transmission resource unit indicated by the first RRC message. Transmitting, by the second number of transmission resource units, the number of data blocks of the second transmission resource unit. The number of the second transmission resource unit is equal to m+Nn, and each data block corresponds to a different process number, and each data block corresponds to a different transmission resource unit, and the process numbers corresponding to different data blocks are respectively n, n+1. ,...,m+N-1, and n is greater than or equal to m.

In any embodiment, the transmission resource unit may be at least one of a time domain resource unit, a frequency domain resource unit, and an air domain resource unit. The time domain resource unit may be any one of a subframe, a transmission slot, a micro transmission slot, an OFDM symbol group, an OFDM symbol, and the like; the frequency domain resource unit may be any one of a carrier, a BWP, a subband, and the like. The spatial resource unit may be any one of a beam, a spatial transmission filter coefficient, and the like.

Further, the transceiver module 62 is further configured to: send the second signaling before sending the first signaling. The second signaling is used to instruct the terminal device to enable the aggregation scheduling mode. Optionally, the second signaling may be a second RRC message.

Optionally, the plurality of transmission resource units of the aggregation schedule includes a plurality of reference signal configurations, and one of the transmission resource units includes a reference signal configuration.

Optionally, the plurality of reference signal configurations include: a reference signal configuration and a no reference signal configuration; or a first reference signal configuration and a second reference signal configuration, and the reference signal configuration includes a time-frequency domain location, a density At least one.

Optionally, the network device indicates, by using the association information between the predefined transmission resource unit index value and the reference signal configuration, that the terminal device adopts an associated reference signal configuration in the transmission resource unit.

Alternatively, the transceiver module 62 is further configured to: send association information between the transmission resource unit index value and the reference signal configuration, and instruct the terminal device to adopt an associated reference signal configuration in the transmission resource unit.

Optionally, the data block size corresponding to different transmission resource units is calculated based on the number of REs available in addition to the RE used by the reference signal.

FIG. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure. As shown in FIG. 7, the terminal device 70 includes a transceiver module 71 and a processing module 72. among them,

The transceiver module 71 is configured to receive the first signaling sent by the network device. The first signaling is used to indicate the number of first transmission resource units required by the terminal device 70 to transmit at least one data block in one aggregation scheduling. The number of first transmission resource units is greater than or equal to two.

The processing module 72 is configured to parse the first signaling to obtain the number of the first transmission resource unit.

The terminal device in this embodiment may be used to perform the steps performed by the terminal device in the foregoing embodiments, and the specific implementation principles and technical effects are similar, and details are not described herein again.

On the basis of the foregoing embodiment, the transceiver module 71 may be further configured to: after the processing module 72 parses the first signaling, obtain the first number of transmission resource units, and receive at least one on the transmission resource unit of the second transmission resource unit number. The data block; or, after the processing module 72 parses the first signaling to obtain the first number of transmission resource units, transmits at least one data block to the network device on the transmission resource unit of the second transmission resource unit number. The number of the second transmission resource unit is less than or equal to the number of the first transmission resource unit.

One data block corresponds to one transmission resource unit.

In some embodiments, the first signaling is a first DCI message. In this scenario, the following possible implementations exist:

Optionally, the number of bit information in the CBGTI field is 0 or 1 is equal to the number of data blocks and the number of second transmission resource units, and the bit position index value of the bit information in the CBGTI field is 0 or 1 indicates an index of the data block. value.

Optionally, when the first DCI message is used for retransmission scheduling, the bit index value set to 0 or set in the CBGTI field is an index value corresponding to the retransmitted data block. Or, when the first DCI message is used for initial transmission scheduling, the number of bits in the CBGTI field is equal to the number of data blocks and the number of the second transmission resource units.

At this point, the data block can be a transport block or a coded block group. When the data block is a coded block group, the number of coded block groups of the second transmission resource unit belongs to the same transport block.

In other embodiments, the first signaling is a first RRC message. At this point, there are also the following possible implementations:

Optionally, the transceiver module 71 is further configured to: after receiving the first signaling sent by the network device, receive the second DCI message sent by the network device. The second DCI message contains the process number n.

When the second DCI message is the initial transmission scheduling, the processing module 72 is further configured to: transmit, according to the process number n and the first number of transmission resource units indicated by the first RRC message, on the number of transmission resource units of the first transmission resource unit. The first transmission resource unit has a number of data blocks. Each data block corresponds to a different process number, and each data block corresponds to a different transmission resource unit, and the process numbers corresponding to different data blocks are respectively n, n+1, ..., n+N-1, and N represents data. The number of blocks and the number of first transmission resource units.

Alternatively, when the second DCI message is a retransmission schedule, the processing module 72 may be further configured to: according to the process number n, the process number m of the initial transmission schedule and the number N of the first transmission resource unit indicated by the first RRC message, The number of two transmission resource units transmits the number of data blocks of the second transmission resource unit on the number of transmission resource units. The number of the second transmission resource unit is equal to m+Nn, and each data block corresponds to a different process number, and each data block corresponds to a different transmission resource unit, and the process numbers corresponding to different data blocks are respectively n, n+1. ,...,m+N-1, and n is greater than or equal to m.

Optionally, the foregoing transmission resource unit may be at least one of a time domain resource unit, a frequency domain resource unit, and a spatial domain resource unit. The time domain resource unit may be any one of a subframe, a transmission slot, a micro transmission slot, an OFDM symbol group, an OFDM symbol, and the like; the frequency domain resource unit may be any one of a carrier, a BWP, a subband, and the like. The spatial resource unit may be any one of a beam, a spatial transmission filter coefficient, and the like.

Further, the transceiver module 71 is further configured to: before receiving the first signaling sent by the network device, the receiving network device sends the second signaling. The second signaling is used to instruct the terminal device to enable the aggregation scheduling mode. Correspondingly, the processing module 72 is further configured to: enable the aggregation scheduling mode.

Optionally, the second signaling may be a second RRC message.

Optionally, the plurality of reference signal configurations may include: a reference signal configuration and a no reference signal configuration; or a first reference signal configuration and a second reference signal configuration, and the reference signal configuration includes a time-frequency domain position, a density At least one of them.

Optionally, the terminal device 70 adopts an associated reference signal configuration in the transmission resource unit, and the association information between the transmission resource unit index value and the reference signal configuration is indicated by the network device by predefined.

Optionally, the transceiver module 71 is further configured to: receive association information between a transmission resource unit index value and a reference signal configuration sent by the network device. The processing module 72 is further configured to: use the associated reference signal configuration in the transmission resource unit according to the association information.

The network device involved in the embodiment of the present application may be the network device 80 shown in FIG. 8.

As shown in FIG. 8, the network device 80 includes a processor 81, a memory 82, and a transceiver 83. Among them, the memory 82 is used to store instructions. When the processor 81 executes the instructions stored by the memory 82, the network device 80 performs the associated method steps performed by the network device in any of the method embodiments of the present application.

Among them, the processor 81, the memory 82, and the transceiver 83 (which may include a transmitter and a receiver) are connected to each other.

The detailed description of each module or unit in the network device 80 provided by the embodiment of the present application, and the technical effects brought by each module or unit performing the related method steps performed by the network device in the method embodiment of the present application may refer to the present invention. The related description in the application method embodiment is not described here.

The embodiment of the present application provides a network device, where the network device has a function of implementing the behavior of the network device in any of the foregoing method embodiments. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more modules corresponding to each of the above-described functions. Optionally, the network device may be a base station.

The terminal device involved in the embodiment of the present application may be the terminal device 90 shown in FIG.

As shown in FIG. 9, the terminal device 90 includes a processor 91, a memory 92, and a transceiver 93. Among them, the memory 92 is used to store instructions. When the processor 91 executes the instructions stored in the memory 92, the terminal device 90 performs the relevant method steps performed by the terminal device in any of the method embodiments of the present application.

Among them, the processor 91, the memory 92, and the transceiver 93 (which may include a transmitter and a receiver) are connected to each other.

The detailed description of each module in the terminal device 90 provided by the embodiment of the present application and the technical effects of the related method steps performed by the terminal device in the method embodiment of the present application may be referred to the method embodiment of the present application. The related descriptions are not repeated here.

An embodiment of the present application provides a terminal device, including at least one processing element (or chip) for performing a method flow related to a terminal device in any of the foregoing method embodiments.

An embodiment of the present application provides a network device, including at least one processing element (or chip) for performing a method flow related to a network device in any of the foregoing method embodiments.

The embodiment of the present application provides a terminal device, which has the function of implementing the behavior of the terminal device in any of the foregoing method embodiments. The functions may be implemented by hardware or by corresponding software implemented by hardware. The hardware or software includes one or more modules corresponding to each of the above-described functions.

The embodiment of the present application further provides a communication system, which includes the network device and the terminal device described in any of the foregoing embodiments.

The embodiment of the present application further provides a chip, including: a processing module and a communication interface, where the processing module can execute the method flow related to the terminal device in any of the foregoing method embodiments. Further, the chip further includes a storage module (eg, a memory) for storing an instruction, the processing module is configured to execute an instruction stored by the storage module, and the instruction stored in the storage module The execution of the method causes the processing module to execute the method flow associated with the terminal device in any of the above method embodiments.

The embodiment of the present application further provides a chip, including: a processing module and a communication interface, where the processing module can execute the method flow related to the network device in any of the foregoing method embodiments. Further, the chip further includes a storage module (eg, a memory) for storing an instruction, the processing module is configured to execute an instruction stored by the storage module, and the instruction stored in the storage module The execution of the method causes the processing module to perform a method flow related to a network device in any of the above method embodiments.

The embodiment of the present application provides a computer readable storage medium, when the instructions in the computer readable storage medium are executed by a processor of the terminal device, so that the terminal device implements the method related to the terminal device in any one of the foregoing method embodiments. Process.

The embodiment of the present application provides a computer readable storage medium, when the instructions in the computer readable storage medium are executed by a processor of a network device, so that the network device implements a method related to the network device in any one of the foregoing method embodiments. Process.

The embodiment of the present application provides a program or a computer program product including the program, when the program is executed by a processor of the terminal device, the terminal device is configured to implement the method related to the terminal device in any of the foregoing method embodiments. Process.

The embodiment of the present application provides a program or a computer program product including the program, when the program is executed by a processor of the network device, the terminal device is configured to implement the method related to the network device in any of the foregoing method embodiments. Process.

It should be understood that the processor mentioned in the embodiment of the present application may be a central processing unit (CPU), and may also be other general-purpose processors, digital signal processors (DSPs), and application specific integrated circuits ( Application Specific Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

It should also be understood that the memory referred to in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory may be a read-only memory (ROM), a programmable read only memory (PROM), an erasable programmable read only memory (Erasable PROM, EPROM), or an electric Erase programmable EPROM (EEPROM) or flash memory. The volatile memory can be a Random Access Memory (RAM) that acts as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous DRAM). SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Synchronous Connection Dynamic Random Access Memory (Synchlink DRAM, SLDRAM) ) and direct memory bus random access memory (DR RAM).

It should be noted that the memories described herein are intended to comprise, without being limited to, these and any other suitable types of memory.

It is also to be understood that the s

It should be understood that the term "and/or" herein is merely an association relationship describing an associated object, indicating that there may be three relationships, for example, A and/or B, which may indicate that A exists separately, and A and B exist simultaneously. There are three cases of B alone. In addition, the character "/" in this article generally indicates that the contextual object is an "or" relationship.

It should be understood that, in various embodiments of the present application, the size of the serial numbers of the above processes does not mean the order of execution, and some or all of the steps may be performed in parallel or sequentially, and the execution order of each process shall be The intrinsic logic is determined without any limitation on the implementation process of the embodiments of the present application.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present application.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

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

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

The functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, the technical solution of the present application, which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, network device or terminal device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

The relevant parts of the method embodiments of the present application may be referred to each other; the apparatus provided in each device embodiment is used to execute the method provided by the corresponding method embodiment, so each device embodiment may refer to related methods in the related method embodiments. Partial understanding.

The device structure diagrams given in the various device embodiments of the present application show only a simplified design of the corresponding device. In practical applications, the device may include any number of transmitters, receivers, processors, memories, etc., to implement the functions or operations performed by the device in the embodiments of the present application, and all devices that can implement the present application All are within the scope of this application.

The names of the message/frame/instruction information, modules, units, and the like provided in the embodiments of the present application are merely examples, and other names may be used as long as the functions of the message/frame/instruction information, the module or the unit, and the like are the same.

The terms used in the embodiments of the present application are for the purpose of describing particular embodiments only, and are not intended to limit the application. The singular forms "a", "the", and "the"

Depending on the context, the words "if" or "if" as used herein may be interpreted as "when" or "when" or "in response to determining" or "in response to detecting." Similarly, depending on the context, the phrase "if determined" or "if detected (conditions or events stated)" may be interpreted as "when determined" or "in response to determination" or "when detected (stated condition or event) "Time" or "in response to a test (condition or event stated)".

A person skilled in the art can understand that all or part of the steps of implementing the above embodiments can be completed by a program to instruct related hardware, and the program can be stored in a readable storage medium of a device, when the program is executed. Including all or part of the above steps, the storage medium, such as: FLASH, EEPROM, and the like.

The specific embodiments described above further explain the objects, technical solutions and beneficial effects of the present application. It should be understood that different embodiments may be combined, and the above is only the specific implementation of the present application. It is not intended to limit the scope of the present application, and any combinations, modifications, equivalents, improvements, etc., made within the spirit and scope of the present application are intended to be included within the scope of the present application.

Claims

An aggregation scheduling method, comprising:

The network device generates a first signaling, where the first signaling is used to indicate a number of first transmission resource units required by the terminal device to transmit at least one data block in an aggregation scheduling, where the number of the first transmission resource units is greater than or equal to 2;

The network device sends the first signaling to the terminal device.
The aggregation scheduling method according to claim 1, wherein after the network device sends the first signaling to the terminal device, the aggregation scheduling method further includes:

The network device receives at least one of the data blocks on a transmission resource unit of a second number of transmission resource units, where the number of the second transmission resource units is less than or equal to the number of the first transmission resource units;

Or the network device sends at least one of the data blocks to the terminal device on a transmission resource unit of the second number of transmission resource units, where the number of the second transmission resource units is less than or equal to the number of the first transmission resource units .
The aggregation scheduling method according to claim 1 or 2, wherein one of the data blocks corresponds to one transmission resource unit.
The aggregation scheduling method according to claim 3, wherein the first signaling is a first downlink control information DCI message.
The aggregation scheduling method according to claim 4, wherein the coding block group transmission indication CBGTI field in the first DCI message is used to indicate the number of the data blocks, the number of the first transmission resource units, and the number The number of two transmission resource units, the number of the data blocks being equal to the number of the second transmission resource units, and the number of the second transmission resource units being less than or equal to the number of the first transmission resource units.
The aggregation scheduling method according to claim 5, wherein the number of bits in the CBGTI field is equal to the number of the first transmission resource unit.
The aggregation scheduling method according to claim 6, wherein the number of bit bits in the CBGTI field is 0 or 1 is equal to the number of the data blocks and the number of the second transmission resource units, and the CBGTI A bit index value in which the bit information in the field is 0 or 1 indicates an index value of the data block.
The aggregation scheduling method according to claim 7, wherein when the first DCI message is used for retransmission scheduling, a bit bit index set to 0 or set in the CBGTI field is a value corresponding to the retransmitted data block. Index value.
The aggregation scheduling method according to claim 6, wherein when the first DCI message is used for initial scheduling, the number of bits in the CBGTI field is equal to the number of the data blocks and the second The number of transmission resource units.
The aggregation scheduling method according to any one of claims 5 to 9, wherein the data block is a transport block or a coded block group.
The aggregation scheduling method according to claim 10, wherein when the data block is a coded block group, the number of coded block groups of the second transmission resource unit belongs to the same transport block.
The aggregation scheduling method according to claim 3, wherein the first signaling is a first radio resource control information RRC message.
The aggregation scheduling method according to claim 12, wherein after the network device sends the first signaling to the terminal device, the aggregation scheduling method further includes:

The network device sends a second downlink control information DCI message to the terminal device, where the second DCI message includes a process number n.
The aggregation scheduling method according to claim 13, wherein when the second DCI message is an initial transmission schedule, the second DCI message is used to instruct the terminal device to perform the process number n and the The number of the first transmission resource units indicated by an RRC message, the number of the first transmission resource unit number of data blocks is transmitted on the first transmission resource unit number of transmission resource units, where each data block corresponds to a different one The process number, each data block corresponds to a different transmission resource unit, and the process numbers corresponding to the different data blocks are respectively n, n+1, ... n+N-1, where N represents the number and location of the data block. The number of first transmission resource units.
The aggregation scheduling method according to claim 13, wherein when the second DCI message is a retransmission scheduling, the second DCI message is used to indicate that the terminal device performs initial scheduling according to the process number n. The process number m and the number N of the first transmission resource units indicated by the first RRC message, and the number of data blocks of the second transmission resource unit are transmitted on the number of transmission resource units of the second transmission resource unit, where The number of the second transmission resource unit is equal to m+Nn, each data block corresponds to a different process number, and each data block corresponds to a different transmission resource unit, and the process numbers corresponding to the different data blocks are respectively n, n +1,...,m+N-1, and n is greater than or equal to m.
The aggregation scheduling method according to any one of claims 3 to 15, wherein the transmission resource unit is at least one of a time domain resource unit, a frequency domain resource unit, and a spatial domain resource unit;

The time domain resource unit is any one of a subframe, a transmission slot, a micro transmission slot, an orthogonal frequency division multiplexing OFDM symbol group, and an OFDM symbol; the frequency domain resource unit is a carrier and a bandwidth portion. Any one of a BWP and a subband; the spatial resource unit is any one of a beam and a spatial transmission filter coefficient.
The aggregation scheduling method according to any one of claims 1 to 16, wherein before the sending, by the network device, the aggregation scheduling method, the aggregation scheduling method further includes:

The network device sends a second signaling, where the second signaling is used to instruct the terminal device to enable an aggregation scheduling mode.
The aggregation scheduling method according to claim 17, wherein the second signaling is a second radio resource control RRC message.
The aggregation scheduling method according to any one of claims 1 to 18, wherein the plurality of transmission resource units of the aggregation scheduling comprise a plurality of reference signal configurations, and one of the transmission resource units comprises a reference signal configuration.
The aggregation scheduling method according to claim 19, wherein the plurality of reference signal configurations comprise:

There are reference signal configurations and no reference signal configurations; or

The first reference signal configuration and the second reference signal configuration, and the reference signal configuration includes at least one of a time-frequency domain position and a density.
The aggregation scheduling method according to claim 19, wherein the network device instructs the terminal device to adopt an association in the transmission resource unit by using association information between a predefined transmission resource unit index value and a reference signal configuration. Reference signal configuration.
The aggregation scheduling method according to claim 19, wherein the aggregation scheduling method further comprises:

The network device sends association information between the transmission resource unit index value and the reference signal configuration, and instructs the terminal device to adopt an associated reference signal configuration in the transmission resource unit.
The aggregation scheduling method according to claim 19, wherein the data block size corresponding to the different transmission resource units is calculated based on the number of REs available in addition to the resource unit RE used by the reference signal.
An aggregation scheduling method, comprising:

Receiving, by the terminal device, the first signaling sent by the network device, where the first signaling is used to indicate a number of the first transmission resource unit required by the terminal device to transmit the at least one data block in an aggregation scheduling, where the first transmission resource unit The number is greater than or equal to 2;

The terminal device parses the first signaling, and acquires the number of the first transmission resource unit.
The aggregation scheduling method according to claim 24, wherein after the terminal device parses the first signaling and obtains the number of the first transmission resource unit, the aggregation scheduling method further includes:

The terminal device receives at least one of the data blocks on a transmission resource unit of the second number of transmission resource units, where the number of the second transmission resource units is less than or equal to the number of the first transmission resource units;

Or the terminal device sends at least one of the data blocks to the network device on a transmission resource unit of the second number of transmission resource units, where the number of the second transmission resource units is less than or equal to the number of the first transmission resource units. .
The aggregation scheduling method according to claim 24 or 25, wherein one of said data blocks corresponds to one transmission resource unit.
The aggregation scheduling method according to claim 26, wherein the first signaling is a first downlink control information DCI message.
The aggregation scheduling method according to claim 27, wherein the coding block group transmission indication CBGTI field in the first DCI message is used to indicate the number of the data blocks, the number of the first transmission resource units, and the number The number of two transmission resource units, the number of the data blocks being equal to the number of the second transmission resource units, and the number of the second transmission resource units being less than or equal to the number of the first transmission resource units.
The aggregation scheduling method according to claim 28, wherein the number of bits in the CBGTI field is equal to the number of the first transmission resource unit.
The aggregation scheduling method according to claim 29, wherein the number of bit bits in the CBGTI field is 0 or 1, the number of the data blocks is equal to the number of the data blocks and the number of the second transmission resource units, and the CBGTI A bit index value in which the bit information in the field is 0 or 1 indicates an index value of the data block.
The aggregation scheduling method according to claim 30, wherein when the first DCI message is used for retransmission scheduling, the bit index value set or set to 1 in the CBGTI field is an index value corresponding to the retransmitted data block. .
The aggregation scheduling method according to claim 29, wherein when the first DCI message is used for initial scheduling, the number of bits in the CBGTI field is equal to the number of the data blocks and the second transmission resource. The number of units.
The aggregation scheduling method according to any one of claims 28 to 32, wherein the data block is a transport block or a coded block group.
The aggregation scheduling method according to claim 33, wherein when the data block is a coded block group, the number of coded block groups of the second transmission resource unit belongs to the same transport block.
The aggregation scheduling method according to claim 26, wherein the first signaling is a first radio resource control information RRC message.
The aggregation scheduling method according to claim 35, wherein after the terminal device receives the first signaling sent by the network device, the aggregation scheduling method further includes:

The terminal device receives a second downlink control information DCI message sent by the network device, where the second DCI message includes a process number n.
The aggregation scheduling method according to claim 36, wherein, when the second DCI message is an initial transmission schedule, the terminal device is configured according to the process number n and the first indicated by the first RRC message Transmitting a number of resource units, transmitting, on the first transmission resource unit number of transmission resource units, the number of data blocks of the first transmission resource unit, where each data block corresponds to a different process number, and each data block corresponds to A different transmission resource unit, the process numbers corresponding to the different data blocks are respectively n, n+1, ..., n+N-1, where N represents the number of the data blocks and the number of the first transmission resource units.
The aggregation scheduling method according to claim 36, wherein, when the second DCI message is a retransmission schedule, the terminal device first transmits the scheduled process number m and the first according to the process number n The number N of the first transmission resource units indicated by the RRC message, and the number of data blocks of the second transmission resource unit are transmitted on the number of transmission resource units of the second transmission resource unit, where the number of the second transmission resource units is equal to m+Nn, each data block corresponds to a different process number, and each data block corresponds to a different transmission resource unit, and the process numbers corresponding to the different data blocks are respectively n, n+1, ..., m+N- 1, and n is greater than or equal to m.
The aggregation scheduling method according to any one of claims 26 to 38, wherein the transmission resource unit is at least one of a time domain resource unit, a frequency domain resource unit, and an air space resource unit;

The time domain resource unit is any one of a subframe, a transmission slot, a micro transmission slot, an orthogonal frequency division multiplexing OFDM symbol group, and an OFDM symbol; the frequency domain resource unit is a carrier and a bandwidth portion. Any one of a BWP and a subband; the spatial resource unit is any one of a beam and a spatial transmission filter coefficient.
The aggregation scheduling method according to any one of claims 24 to 39, wherein before the receiving, by the terminal device, the first signaling sent by the network device, the aggregation scheduling method further includes:

The terminal device receives the network device to send a second signaling, where the second signaling is used to instruct the terminal device to enable an aggregation scheduling mode;

The terminal device starts an aggregation scheduling mode.
The aggregation scheduling method according to claim 40, wherein the second signaling is a second radio resource control RRC message.
The aggregation scheduling method according to any one of claims 24 to 41, wherein the aggregated plurality of transmission resource units comprise a plurality of reference signal configurations, and one of the transmission resource units comprises a reference signal configuration.
The aggregation scheduling method according to claim 42, wherein the plurality of reference signal configurations comprise:

There are reference signal configurations and no reference signal configurations; or

The first reference signal configuration and the second reference signal configuration, and the reference signal configuration includes at least one of a time-frequency domain position and a density.
The aggregation scheduling method according to claim 42, wherein the terminal device adopts an associated reference signal configuration in the transmission resource unit, and the association information between the transmission resource unit index value and the reference signal configuration is The network device is indicated by a predefined.
The aggregation scheduling method according to claim 42, wherein the aggregation scheduling method further comprises:

Receiving, by the terminal device, association information between a transmission resource unit index value and a reference signal configuration sent by the network device;

The terminal device adopts an associated reference signal configuration in the transmission resource unit according to the association information.
The aggregation scheduling method according to claim 42, wherein the data block size corresponding to the different transmission resource units is calculated based on the number of REs available in addition to the resource unit RE used by the reference signal.
A network device, comprising:

a processing module, configured to generate first signaling, where the first signaling is used to indicate a number of first transmission resource units required by the terminal device to transmit at least one data block in an aggregation scheduling, where the number of the first transmission resource units Greater than or equal to 2;

The transceiver module is configured to send the first signaling to the terminal device.
The network device according to claim 47, wherein the transceiver module is further configured to:

After transmitting the first signaling to the terminal device, receiving at least one data block on a transmission resource unit of a second transmission resource unit number, where the number of the second transmission resource unit is less than or equal to the first The number of transmission resource units;

Or after transmitting the first signaling to the terminal device, sending at least one data block to the terminal device on a transmission resource unit of the second transmission resource unit number, where the number of the second transmission resource unit Less than or equal to the number of the first transmission resource units.
A network device according to claim 47 or 48, wherein one of said data blocks corresponds to a transmission resource unit.
The network device according to claim 49, wherein the first signaling is a first downlink control information DCI message.
The network device according to claim 50, wherein the coded block group transmission indication CBGTI field in the first DCI message is used to indicate the number of the data blocks, the number of the first transmission resource units, and the second The number of transmission resource units, the number of the data blocks being equal to the number of the second transmission resource units, and the number of the second transmission resource units being less than or equal to the number of the first transmission resource units.
The network device according to claim 51, wherein the number of bits in the CBGTI field is equal to the number of the first transmission resource unit.
The network device according to claim 52, wherein the number of bits in the CBGTI field that is 0 or 1 is equal to the number of the data blocks and the number of the second transmission resource units, and the CBGTI field A bit index value in which the bit information is 0 or 1 indicates an index value of the data block.
The network device according to claim 53, wherein when the first DCI message is used for retransmission scheduling, the bit bit index set to 0 or set in the CBGTI field is an index value corresponding to the retransmitted data block.
The network device according to claim 52, wherein when the first DCI message is used for initial scheduling, the number of bits in the CBGTI field is equal to the number of the data blocks and the second transmission resource unit. number.
The network device according to any one of claims 51 to 55, wherein the data block is a transport block or a coded block group.
The network device according to claim 56, wherein when the data block is a coded block group, the number of coded block groups of the second transmission resource unit belongs to the same transport block.
The network device according to claim 49, wherein the first signaling is a first radio resource control information RRC message.
The network device according to claim 58, wherein the transceiver module is further configured to:

After transmitting the first signaling to the terminal device, sending a second downlink control information DCI message to the terminal device, where the second DCI message includes a process number n.
The network device according to claim 59, wherein when the second DCI message is an initial transmission schedule, the second DCI message is used to indicate that the terminal device is based on the process number n and the first The number of the first transmission resource units indicated by the RRC message, the number of the first transmission resource unit number of data blocks is transmitted on the first transmission resource unit number of transmission resource units, where each data block corresponds to a different one. a process number, each data block corresponds to a different transmission resource unit, and the process numbers corresponding to the different data blocks are respectively n, n+1, ..., n+N-1, where N represents the number of the data blocks and the The number of first transmission resource units.
The network device according to claim 59, wherein when the second DCI message is a retransmission schedule, the second DCI message is used to indicate that the terminal device is scheduled to be initially transmitted according to the process number n. The process number m and the number N of the first transmission resource units indicated by the first RRC message, and the number of data blocks of the second transmission resource unit are transmitted on the number of transmission resource units of the second transmission resource unit, where The number of the second transmission resource unit is equal to m+Nn, each data block corresponds to a different process number, and each data block corresponds to a different transmission resource unit, and the process numbers corresponding to the different data blocks are respectively n, n+ 1,...,m+N-1, and n is greater than or equal to m.
The network device according to any one of claims 49 to 61, wherein the transmission resource unit is at least one of a time domain resource unit, a frequency domain resource unit, and an air space resource unit;

The time domain resource unit is any one of a subframe, a transmission slot, a micro transmission slot, an orthogonal frequency division multiplexing OFDM symbol group, and an OFDM symbol; the frequency domain resource unit is a carrier and a bandwidth portion. Any one of a BWP and a subband; the spatial resource unit is any one of a beam and a spatial transmission filter coefficient.
The network device according to any one of claims 47 to 62, wherein the transceiver module is further configured to:

Before sending the first signaling, sending the second signaling, where the second signaling is used to instruct the terminal device to enable the aggregation scheduling mode.
The network device according to claim 63, wherein the second signaling is a second radio resource control RRC message.
The network device according to any one of claims 47 to 64, wherein the plurality of transmission resource units of the aggregation schedule comprise a plurality of reference signal configurations, and one of the transmission resource units comprises a reference signal configuration.
The network device according to claim 65, wherein the plurality of reference signal configurations comprise:

There are reference signal configurations and no reference signal configurations; or

The first reference signal configuration and the second reference signal configuration, and the reference signal configuration includes at least one of a time-frequency domain position and a density.
The network device according to claim 65, wherein the network device instructs the terminal device to adopt an association in the transmission resource unit by using association information between a predefined transmission resource unit index value and a reference signal configuration. Reference signal configuration.
The network device according to claim 65, wherein the transceiver module is further configured to:

Transmitting association information between the transmission resource unit index value and the reference signal configuration, instructing the terminal device to adopt an associated reference signal configuration in the transmission resource unit.
The network device according to claim 65, wherein the data block size corresponding to the different transmission resource units is calculated based on the number of REs available in addition to the resource unit RE used by the reference signal.
A terminal device, comprising:

a transceiver module, configured to receive first signaling sent by the network device, where the first signaling is used to indicate a number of first transmission resource units required by the terminal device to transmit at least one data block in an aggregation scheduling, where the first The number of transmission resource units is greater than or equal to 2;

And a processing module, configured to parse the first signaling, and obtain the number of the first transmission resource unit.
The terminal device according to claim 70, wherein the transceiver module is further configured to:

After the processing module parses the first signaling to obtain the number of the first transmission resource unit, receiving at least one of the data blocks on the transmission resource unit of the second transmission resource unit number, the second transmission resource The number of units is less than or equal to the number of the first transmission resource units;

Or after the processing module parses the first signaling to acquire the number of the first transmission resource unit, and sends at least one of the data blocks to the network device on the transmission resource unit of the second transmission resource unit number. The number of the second transmission resource unit is less than or equal to the number of the first transmission resource unit.
The terminal device according to claim 70 or 71, wherein one of said data blocks corresponds to one transmission resource unit.
The terminal device according to claim 72, wherein the first signaling is a first downlink control information DCI message.
The terminal device according to claim 73, wherein the coding block group transmission indication CBGTI field in the first DCI message is used to indicate the number of the data blocks, the number of the first transmission resource units, and the second The number of transmission resource units, the number of the data blocks being equal to the number of the second transmission resource units, and the number of the second transmission resource units being less than or equal to the number of the first transmission resource units.
The terminal device according to claim 74, wherein the number of bits in the CBGTI field is equal to the number of the first transmission resource unit.
The terminal device according to claim 75, wherein the number of bits in the CBGTI field that is 0 or 1 is equal to the number of the data blocks and the number of the second transmission resource units, and the CBGTI field A bit index value in which the bit information is 0 or 1 indicates an index value of the data block.
The terminal device according to claim 76, wherein when the first DCI message is used for retransmission scheduling, the bit bit index set to 0 or set in the CBGTI field is an index value corresponding to the retransmitted data block.
The terminal device according to claim 75, wherein when the first DCI message is used for initial scheduling, the number of bits in the CBGTI field is equal to the number of the data blocks and the second transmission resource unit. number.
The terminal device according to any one of claims 74 to 78, wherein the data block is a transport block or a coded block group.
The terminal device according to claim 79, wherein when the data block is a coded block group, the number of coded block groups of the second transmission resource unit belongs to the same transport block.
The terminal device according to claim 72, wherein the first signaling is a first radio resource control information RRC message.
The terminal device according to claim 81, wherein the transceiver module is further configured to:

After receiving the first signaling sent by the network device, receiving a second downlink control information DCI message sent by the network device, where the second DCI message includes a process number n.
The terminal device according to claim 82, wherein when the second DCI message is an initial transmission schedule, the transceiver module is further configured to:

After receiving the second downlink control information DCI message sent by the network device, according to the process number n and the number of the first transmission resource unit indicated by the first RRC message, the number of transmissions in the first transmission resource unit Transmitting, by the resource unit, the number of data blocks of the first transmission resource unit, where each data block corresponds to a different process number, each data block corresponding to a different transmission resource unit, and different process numbers corresponding to the data block N, n+1, ..., n+N-1, respectively, N represents the number of data blocks and the number of the first transmission resource units.
The terminal device according to claim 82, wherein when the second DCI message is a retransmission schedule, the transceiver module is further configured to:

After receiving the second downlink control information DCI message sent by the network device, according to the process number n, the process number m of the initial transmission schedule and the number N of the first transmission resource unit indicated by the first RRC message, Transmitting a number of transmission resource units and transmitting a number of data blocks of the second transmission resource unit, wherein the number of the second transmission resource units is equal to m+Nn, and each data block corresponds to a different process number, each The data blocks correspond to a different transmission resource unit, and the process numbers corresponding to the different data blocks are respectively n, n+1, ..., m+N-1, and n is greater than or equal to m.
The terminal device according to any one of claims 72 to 84, wherein the transmission resource unit is at least one of a time domain resource unit, a frequency domain resource unit, and an air space resource unit;

The time domain resource unit is any one of a subframe, a transmission slot, a micro transmission slot, an orthogonal frequency division multiplexing OFDM symbol group, and an OFDM symbol; the frequency domain resource unit is a carrier and a bandwidth portion. Any one of a BWP and a subband; the spatial resource unit is any one of a beam and a spatial transmission filter coefficient.
A terminal device according to any one of claims 70 to 85, characterized in that

The transceiver module is further configured to: before receiving the first signaling sent by the network device, receive the second signaling by the network device, where the second signaling is used to indicate that the terminal device starts an aggregation scheduling mode;

Correspondingly, the processing module is further configured to: start an aggregation scheduling mode.
The terminal device according to claim 86, wherein the second signaling is a second radio resource control RRC message.
The terminal device according to any one of claims 70 to 87, wherein the aggregated plurality of transmission resource units comprise a plurality of reference signal configurations, and one of the transmission resource units comprises a reference signal configuration.
The terminal device according to claim 88, wherein the plurality of reference signal configurations comprise:

There are reference signal configurations and no reference signal configurations; or

The first reference signal configuration and the second reference signal configuration, and the reference signal configuration includes at least one of a time-frequency domain position and a density.
The terminal device according to claim 88, wherein the processing module is further configured to:

The transmission resource unit adopts an associated reference signal configuration, and the association information between the transmission resource unit index value and the reference signal configuration is indicated by the network device by predefined.
A terminal device according to claim 88, characterized in that

The transceiver module is further configured to: receive association information between a transmission resource unit index value and a reference signal configuration sent by the network device;

The processing module is further configured to: use the associated reference signal configuration in the transmission resource unit according to the association information.
The terminal device according to claim 88, wherein the data block size corresponding to the different transmission resource units is calculated based on the number of REs available in addition to the resource unit RE used by the reference signal.
A network device, comprising: a processor and a memory;

The memory is for storing instructions;

The network device is operative to perform the method of any one of claims 1 to 23 when the processor executes the instructions stored by the memory.
A terminal device, comprising: a processor and a memory;

The memory is for storing instructions;

The terminal device is operative to perform the method of any one of claims 24 to 46 when the processor executes the instructions stored by the memory.
A communication system, comprising the network device according to any one of claims 47 to 69 and 93, and the terminal device according to any one of claims 76 to 92 and 94.
A computer readable storage medium, wherein when the instructions in the computer readable storage medium are executed by a processor of a network device, causing the network device to perform the method of any one of claims 1 to 23 method.
A computer readable storage medium, wherein when the instructions in the computer readable storage medium are executed by a processor of a terminal device, causing the terminal device to perform the method of any one of claims 24 to 46 method.