CN113424615A

CN113424615A - Data transmission method and equipment

Info

Publication number: CN113424615A
Application number: CN201980091958.7A
Authority: CN
Inventors: 余政; 毕文平
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-02-15
Filing date: 2019-02-15
Publication date: 2021-09-21
Anticipated expiration: 2039-02-15
Also published as: WO2020164149A1; CN113424615B

Abstract

A data transmission method and apparatus. An embodiment of the present application provides a data transmission method, including: the method comprises the steps that first communication equipment receives first information sent by second communication equipment; wherein, the first information comprises X bits, and X is a positive integer; at least one bit state in the bit states corresponding to the X bits can be used for indicating that the control information sent by the second communication equipment is used for scheduling a single transmission block; at least one bit state in the bit states corresponding to the X bits can be used for indicating that the control information is used for first scheduling; the first communication equipment determines the number of transmission blocks scheduled by the control information according to the bit state of the first information and determines the size of the transmission blocks scheduled by the control information according to the control information; and the first communication equipment receives the data sent by the second communication equipment according to the determined number of the transmission blocks and the size of the transmission blocks, or the first communication equipment sends the data to the second communication equipment according to the determined number of the transmission blocks and the size of the transmission blocks.

Description

Data transmission method and equipment

Technical Field

The embodiment of the application relates to the field of communication, in particular to a data transmission method and device.

Background

In a communication system, generally, one Control Information (CI) schedules one Transport Block (TB). The data channel may be a physical downlink data channel or a physical uplink data channel.

In order to reduce the overhead of CI transmission and save transmission resources, one CI may be used to schedule multiple data channels or one CI may be used to schedule multiple transport blocks.

When one CI schedules a plurality of transport blocks, the CI needs to indicate the number of scheduled transport blocks and to indicate whether each transport block is successfully received. For example, when 8 transport blocks are scheduled by one CI, the CI needs 8 bits to indicate the number of the scheduled transport blocks in a bitmap indication manner, and also needs 8 bits to indicate whether each transport block is successfully received in a bitmap indication manner, so that an indication overhead of 8+8 bits to 16 bits is needed at maximum.

In the prior art, when one CI schedules a plurality of transport blocks, the CI needs more information to indicate, and therefore needs more indication overhead.

In the above prior art, the bit overhead of the CI scheduling transport block is too large, especially considering the performance of the control channel with high reliability, too much bit overhead needs to consume more transmission resources, and how to reduce the indication overhead of the CI scheduling transport block still remains to be solved.

Disclosure of Invention

The embodiment of the application provides a data transmission method and equipment, which are used for reducing the indication overhead of CI scheduling transmission blocks and reducing the occupation of transmission resources.

In order to solve the above technical problem, an embodiment of the present application provides the following technical solutions:

in a first aspect, an embodiment of the present application provides a data transmission method, including: the method comprises the steps that first communication equipment receives first information sent by second communication equipment; wherein the first information comprises X bits, and X is a positive integer; at least one bit state in the bit states corresponding to the X bits can be used to indicate that the control information sent by the second communication device is used for scheduling a single transport block; at least one bit state in the bit states corresponding to the X bits can be used to indicate that the control information is used for first scheduling, where the first scheduling refers to that the control information can schedule multiple transport blocks, and all the transport blocks that the control information can schedule have newly transmitted transport blocks and retransmitted transport blocks; the first communication equipment determines the number of transmission blocks scheduled by the control information according to the bit state of the first information and determines the size of the transmission blocks scheduled by the control information according to the control information; and the first communication equipment receives the data sent by the second communication equipment according to the determined number of the transmission blocks and the size of the transmission blocks, or the first communication equipment sends the data to the second communication equipment according to the determined number of the transmission blocks and the size of the transmission blocks.

As can be seen from the foregoing description of the embodiment, in order to enable the first communication device to obtain the number of transmission blocks determined by the second communication device, the second communication device may generate a first message, and send the first message to the first communication device, so that the first communication device can obtain the number of transmission blocks determined by the second communication device according to the received first message. In order to save the indication overhead of the control information, the first information generated by the second communication device in the embodiment of the present application may be used to indicate that the control information is used for scheduling of a single transport block or for the first scheduling. According to the embodiment of the application, the bit overhead of the control information can be optimized, and the transmission performance of the control information is improved.

In one possible design of the first aspect, the method further includes: the first communication equipment receives a high-level signaling sent by the second communication equipment, wherein the high-level signaling comprises the first information; or, the first communication device receives control information sent by the second communication device, where the control information includes the first information.

After the second communication device generates the first information, the second communication device may transmit the first information in a plurality of ways. For example, the second communication device may employ higher layer signaling, which may include the first information, so that the first communication device may receive the higher layer signaling, and may obtain the first information generated by the second communication device by parsing the higher layer signaling. For example, the higher layer signaling may include: RRC signaling. In addition, the second communication device may employ physical layer signaling, where the physical layer signaling may include the first information, so that the first communication device may receive the physical layer signaling, and may obtain the first information generated by the second communication device by analyzing the physical layer signaling. For example, the physical layer signaling may be: the aforementioned control information, further, the control information may include first information.

In a second aspect, an embodiment of the present application further provides a data transmission method, including: the second communication equipment determines the number of transmission blocks scheduled by control information, and determines the size of the transmission blocks scheduled by the control information; the second communication equipment generates first information and sends the first information to the first communication equipment, wherein the bit state of the first information indicates the number of the transmission blocks scheduled by the control information, and the bit state of the first information indicates the number of the transmission blocks scheduled by the control information; wherein the first information comprises X bits, and X is a positive integer; at least one bit state in the bit states corresponding to the X bits can be used to indicate that the control information sent by the second communication device is used for scheduling a single transport block; at least one bit state in the bit states corresponding to the X bits can be used to indicate that the control information is used for first scheduling, where the first scheduling refers to that the control information can schedule multiple transport blocks, and all the transport blocks that the control information can schedule have newly transmitted transport blocks and retransmitted transport blocks; and the second communication equipment receives the data sent by the first communication equipment according to the determined number of the transmission blocks and the size of the transmission blocks, or the second communication equipment sends the data to the first communication equipment according to the determined number of the transmission blocks and the size of the transmission blocks.

In one possible design of the second aspect, the method further includes: the second communication device sends a high-level signaling to the first communication device, wherein the high-level signaling comprises the first information; or, the second communication device sends control information to the first communication device, where the control information includes the first information.

In a third aspect, an embodiment of the present application provides a communication device, where the communication device is specifically a first communication device, and the first communication device includes: the receiving module is used for receiving first information sent by second communication equipment; wherein the first information comprises X bits, and X is a positive integer; at least one bit state in the bit states corresponding to the X bits can be used to indicate that the control information sent by the second communication device is used for scheduling a single transport block; at least one bit state in the bit states corresponding to the X bits can be used to indicate that the control information is used for first scheduling, where the first scheduling refers to that the control information can schedule multiple transport blocks, and all the transport blocks that the control information can schedule have newly transmitted transport blocks and retransmitted transport blocks; the processing module is used for determining the number of the transmission blocks scheduled by the control information according to the bit state of the first information and determining the size of the transmission blocks scheduled by the control information according to the control information; the receiving module is further configured to receive data sent by the second communication device according to the determined number of the transmission blocks and the size of the transmission blocks, or the sending module is configured to send data to the second communication device according to the determined number of the transmission blocks and the size of the transmission blocks.

In a possible design of the third aspect, the receiving module is configured to receive a higher layer signaling sent by the second communication device, where the higher layer signaling includes the first information; or, the apparatus is configured to receive control information sent by the second communication device, where the control information includes the first information.

In a third aspect, an embodiment of the present application provides a communication device, where the communication device is specifically a second communication device, and the second communication device includes: the processing module is used for determining the number of the transmission blocks scheduled by the control information, and the second communication equipment determines the size of the transmission blocks scheduled by the control information; the processing module is used for generating first information; a sending module, configured to send first information to a first communication device, where a bit state of the first information indicates a number of transport blocks scheduled by the control information; wherein the first information comprises X bits, and X is a positive integer; at least one bit state in the bit states corresponding to the X bits can be used to indicate that the control information sent by the second communication device is used for scheduling a single transport block; at least one bit state in the bit states corresponding to the X bits can be used to indicate that the control information is used for first scheduling, where the first scheduling refers to that the control information can schedule multiple transport blocks, and all the transport blocks that the control information can schedule have newly transmitted transport blocks and retransmitted transport blocks; and a receiving module, configured to receive the data sent by the first communication device according to the determined number of the transmission blocks and the size of the transmission blocks, or the sending module is further configured to send the data to the first communication device according to the determined number of the transmission blocks and the size of the transmission blocks.

In a possible design of the fourth aspect, the sending module is configured to send higher layer signaling to the first communication device, where the higher layer signaling includes the first information; or sending control information to the first communication device, wherein the control information comprises the first information.

In a possible design of the first aspect, the second aspect, the third aspect, or the fourth aspect, at least one bit state of the bit states corresponding to the X bits may be used to indicate that the control information is used for scheduling of multiple transport blocks, and the multiple transport blocks are all newly transmitted transport blocks; and/or at least one bit state in the bit states corresponding to the X bits can be used to indicate that the control information is used for scheduling of multiple transport blocks, and the multiple transport blocks are all retransmitted transport blocks. The bit states corresponding to the X bits include multiple bit states, and besides indicating that the control information is used for scheduling of a single transport block and for the first scheduling, the bit states corresponding to the X bits may also be used for indicating that multiple transport blocks are all retransmitted transport blocks or all newly transmitted transport blocks. Therefore, the multiple different bit states of the first information provided by the embodiment of the application can indicate the transport block types corresponding to all transport blocks scheduled by the control information, so that the indication overhead of the control information can be reduced.

In a possible design of the first aspect, the second aspect, the third aspect, or the fourth aspect, at least one bit state of bit states corresponding to the X bits may be used to indicate that the control information is used for the second scheduling; or, a high-level signaling or the control information indicates that the control information is also used for second scheduling, where the high-level signaling is a signaling sent by the second communication device to the first communication device; wherein the second scheduling means that all transport blocks scheduled by the control information can only be all newly transmitted transport blocks or all retransmitted transport blocks. In this embodiment of the present application, the second scheduling is a scheduling manner different from the first scheduling, and the second scheduling means that all the transport blocks scheduled by the control information can only be all newly transmitted transport blocks or all retransmitted transport blocks, that is, all the data blocks limited in the second scheduling by the control information scheduling can only be all newly transmitted transport blocks or all retransmitted transport blocks. In addition, the first information may indicate the second scheduling, or the higher layer signaling or the control information indicates that the control information is also used for the second scheduling, and as to which information or signaling indicates the control information is used for the second scheduling, the method is not limited herein.

In a possible design of the first aspect, the second aspect, the third aspect, or the fourth aspect, the control information includes a first field, and the first field includes one bit or multiple bits; when the bit state of the first field belongs to a first state set, the first information indicates that the control information is used for the first scheduling; when the bit state of the first field belongs to a second state set, the first information indicates that the control information is used for the second scheduling; the first set of states includes one or more bit states of the first field and the second set of states includes one or more bit states of the first field. The first field is a component of the first information, for example, the first field may be located at a head of the first information, or may be located at an end of the first field, or the first field is located at a specific position in the first information, which is not limited herein. The first field may have a variety of bit states, for example the first field includes at least: a first set of states and a second set of states. The first field may indicate that the control information is for the first scheduling when the bit state of the first field belongs to a first set of states, e.g., the first set of states may include bit state 00. When the bit state of the first field belongs to a second set of states, indicating control information for the second scheduling, e.g. the second set of states may be 01, 10, 11. Wherein the respective bit states included in the first set of states and the second set of states are non-overlapping.

In a possible design of the first aspect, the second aspect, the third aspect, or the fourth aspect, at least one bit state of the bit states corresponding to the X bits may be used to indicate that the control information is used for a third scheduling, where the third scheduling refers to that the control information can schedule multiple transport blocks, and all the transport blocks that can be scheduled by the control information are newly transmitted transport blocks; and/or at least one bit state in the bit states corresponding to the X bits can be used to indicate that the control information is used for fourth scheduling, where the fourth scheduling refers to that the control information can schedule multiple transport blocks, and all the transport blocks that can be scheduled by the control information are retransmitted transport blocks. The bit states corresponding to the X bits may include multiple types, for example, at least one bit state may be used to indicate that the control information is used for the third scheduling, or the at least one bit state may be used to indicate that the control information is used for the fourth degree. In this embodiment of the present application, the third scheduling means that the control information can schedule multiple transmission blocks, and only a transmission block for scheduling new transmission exists in all transmission blocks that the control information can schedule, and the fourth scheduling means that the control information can schedule multiple transmission blocks, and only a transmission block for scheduling retransmission exists in all transmission blocks that the control information can schedule. In combination with the description herein, bit states corresponding to X bits in the embodiment of the present application may indicate a plurality of different scheduling manners, and a specific scenario needs to be combined to determine a scheduling manner indicated by at least one bit state in the bit states corresponding to the X bits.

In a possible design of the first aspect, the second aspect, the third aspect, or the fourth aspect, a HARQ process index of a first transport block scheduled by the control information is 0, or the HARQ process index of the first transport block is a preset value, or the HARQ process index of the first transport block is a fixed value; or when the number of the transport blocks scheduled by the control information is greater than M, the HARQ process index of the first transport block in the multiple transport blocks scheduled by the control information is 0, or a preset value, or a fixed value, where M is a preset or configured positive integer; and/or when the number of the transport blocks scheduled by the control information is less than L, the control information indicates the HARQ process index of the first transport block in the scheduled transport blocks in a HARQ process index set, the HARQ process index set at least includes 2 HARQ process indexes, wherein L is a preset or configured positive integer. In this embodiment of the present application, the HARQ process index corresponding to the transport block scheduled by the control information sent by the second communication device may also be determined by using the foregoing exemplary manner. For example, an achievable method is that the HARQ process index of the first transport block scheduled by the control information is 0, or the HARQ process index of the first transport block is a preset value, or the HARQ process index of the first transport block is a fixed value, in this case, the second communication device does not need to indicate the HARQ process index of the first transport block, and the first communication device may take a preconfigured value of the HARQ process index of the first transport block to determine the HARQ process index of the first transport block, thereby saving the indication overhead of the control information.

In a possible design of the first aspect, the second aspect, the third aspect or the fourth aspect, the M is 1, the M is 2, the M is 3, the M is 4, the M is 5, or the M is 6; alternatively, said L-2, or said L-3, or said L-4, or said L-5, or said L-6. Wherein, the values of M and L are given as corresponding examples. Optionally, L ═ M + 1. Without limitation, in an actual application scenario, the values of M and L may be configured according to a specific scenario. When the number of the scheduled transport blocks is large, it is considered that the state of each transport block may be initial transmission or retransmission, so that a large number of combinations of states indicating the transport blocks are provided, and the required bit overhead is also large. Therefore, it can be specified that when the number of the transport blocks is greater than M, the HARQ process index of the first transport block is limited to a fixed value, which greatly reduces the possibility of indication, thereby saving the indication overhead of the control information. When the number of the scheduled transport blocks is small, it is considered that the state of each transport block may be initial transmission or retransmission, so that the combinations indicating the states of the transport blocks are not many, and the required bit overhead is small. Therefore, there is no need to limit the HARQ process index of the first transport block to a fixed value, which improves the flexibility of indication.

In a possible design of the first aspect, the second aspect, the third aspect, or the fourth aspect, when the number of transport blocks scheduled by the control information belongs to a set {2,3,4,5,6,7,8}, a HARQ process index of a first transport block indicated by the first information takes a value of 0; or, when the number of transport blocks scheduled by the control information belongs to a set {3,4,5,6,7,8}, an HARQ process index of a first transport block indicated by the first information takes a value of 0; or, when the number of transport blocks scheduled by the control information belongs to a set {4,5,6,7,8}, an HARQ process index of a first transport block indicated by the first information takes a value of 0. In the case that the number of transport blocks scheduled by the control information belongs to any one of the above sets, the HARQ process index of the first transport block takes a value of 0, and at this time, the second communication device does not need to indicate the HARQ process index of the first transport block, and the first communication device can determine the HARQ process index of the first transport block by taking a value of a pre-configuration of the HARQ process index of the first transport block, thereby saving the indication overhead of the control information.

In a possible design of the first aspect, the second aspect, the third aspect, or the fourth aspect, when the number of transport blocks scheduled by the control information is greater than N, the first communication device supports performing acknowledgement feedback on the received transport blocks in a bundling or multiplexing manner, but does not support performing individual acknowledgement feedback on each of the received transport blocks, where N is a preset or configured positive integer; and/or when the number of the transport blocks scheduled by the control information is less than H, the first communication device supports individual response feedback for each of the received transport blocks, where H is a preset or configured positive integer. When the number of the transmission blocks scheduled by the control information is greater than N, the first communication device supports response feedback on the received transmission blocks in a bundling or multiplexing mode, but does not support separate response feedback on each of the received transmission blocks, so that the indication overhead of the control information is reduced. The values of N and H have various realizable situations, but it is not limited to that, in an actual application scenario, the values of N and H may be configured according to a specific scenario, for example, H and N satisfy the following relationship: h ═ N + 1.

In a possible design of the first aspect, the second aspect, the third aspect, or the fourth aspect, when the control information is used for the first scheduling, HARQ process indexes of other transport blocks of the plurality of transport blocks except for a first transport block are determined according to the HARQ process index of the first transport block; and/or each transport block in the plurality of transport blocks corresponds to one HARQ process index, and the plurality of HARQ process indexes corresponding to the plurality of transport blocks are continuous. And if the control information schedules the plurality of transport blocks, the first information is used for indicating the HARQ process index of the first transport block, and the HARQ process indexes of other transport blocks except the first transport block in the plurality of transport blocks are determined according to the HARQ process index of the first transport block. For example, the HARQ process indexes of other transport blocks may be calculated by using a preset calculation method to obtain the HARQ process indexes of the other transport blocks. For example, the preset calculation manner may include a plurality of calculation rules, which are described in detail in the following embodiments. For each transport block in the multiple transport blocks, one HARQ process index is corresponding to each transport block, that is, each transport block is configured with one HARQ process index, and multiple HARQ process indexes corresponding to the multiple transport blocks are consecutive, and when the first information is used to indicate the HARQ process index of the first transport block, the HARQ process indexes of other transport blocks may be consecutively obtained according to all the HARQ process indexes. For example, the HARQ process index of the first transport block is 1, and if the control information schedules 3 transport blocks in total, the HARQ process indexes of other transport blocks start from HARQ process index 1, and the HARQ process indexes of other 3 transport blocks are determined to be 2,3, and 4 by using the continuous rule.

In a possible design of the first aspect, the second aspect, the third aspect, or the fourth aspect, when the control information schedules 1 transport block, the first information indicates an HARQ process index of the transport block in a value set {0,1}, and when the number of transport blocks scheduled by the control information belongs to a set {2,3,4,5,6,7,8}, the HARQ process index of a first transport block indicated by the first information is taken as 0; or, when the control information schedules 1 transport block, the first information indicates the HARQ process index of the transport block in a value set {0,1}, and when the number of transport blocks scheduled by the control information belongs to a set {2,3,4}, the HARQ process index of the first transport block indicated by the first information is 0.

In a possible design of the first aspect, the second aspect, the third aspect, or the fourth aspect, when the control information schedules 1 transport block, the first information indicates an HARQ process index of the transport block in a value set {0,1,2,3,4,5,6,7}, and when the number of transport blocks scheduled by the control information belongs to the value set {2,3,4,5,6,7,8}, the HARQ process index of the first transport block indicated by the first information is 0; or, when the control information schedules 1 transport block, the first information indicates the HARQ process index of the transport block in a value set {0,1,2,3,4,5,6,7}, when the control information schedules 2 transport blocks, the first information indicates the HARQ process index of a first transport block in the value set {0,2}, and when the number of the transport blocks scheduled by the control information belongs to the set {3,4,5,6,7,8}, the HARQ process index of the first transport block indicated by the first information takes a value of 0; or, when the control information schedules 1 transport block, the first information indicates the HARQ process index of the transport block in a value set {0,1}, and when the control information schedules 2 transport blocks, the first information indicates the HARQ process index of the transport block in a value set {0,2}, and when the number of transport blocks scheduled by the control information belongs to a set {3,4}, the HARQ process index of the first transport block indicated by the first information takes a value of 0.

In a possible design of the first aspect, the second aspect, the third aspect, or the fourth aspect, when the control information schedules 2 transport blocks, the first information indicates a HARQ process index of a first transport block in a value set {0,2,4,6}, when the control information schedules 3 transport blocks, the first information indicates a HARQ process index of the first transport block in the value set {0,3,4}, and when the number of transport blocks scheduled by the control information belongs to the set {4,5,6,7,8}, the HARQ process index of the first transport block indicated by the first information takes a value of 0; or, when the control information schedules 2 transport blocks, the first information indicates the HARQ process index of the first transport block in a value set {0,2,4,6}, when the control information schedules 4 transport blocks, the first information indicates the HARQ process index of the first transport block in the value set {0,4}, and when the number of the transport blocks scheduled by the control information belongs to the set {3,5,6,7,8}, the HARQ process index of the first transport block indicated by the first information takes a value of 0.

When the

control information schedules

1 or 2 or 3 or 4 transport blocks, the HARQ process index of the first transport block indicated by the first information may be configured according to a specific scenario, which is only an example of the present application.

In a third aspect of the present application, the constituent modules of the first communication device may further perform the steps described in the foregoing first aspect and various possible implementations, for details, see the foregoing description of the first aspect and various possible implementations.

In a fourth aspect of the present application, the constituent modules of the second communication device may further perform the steps described in the foregoing second aspect and various possible implementations, for details, see the foregoing description of the second aspect and various possible implementations.

In a fifth aspect, the present invention provides a computer-readable storage medium having stored therein instructions, which, when executed on a computer, cause the computer to perform the method of the first or second aspect.

In a sixth aspect, embodiments of the present application provide a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the first or second aspect.

In a seventh aspect, an embodiment of the present application provides a communication device, where the communication device may include an entity such as a terminal device or a network device, and the communication device includes: a processor, a memory; the memory is to store instructions; the processor is configured to execute the instructions in the memory to cause the communication device to perform the method of any of the preceding first or second aspects.

In an eighth aspect, the present application provides a chip system comprising a processor for enabling a communication device to implement the functions referred to in the above aspects, e.g. to transmit or process data and/or information referred to in the above methods. In one possible design, the system-on-chip further includes a memory for storing program instructions and data necessary for the communication device. The chip system may be formed by a chip, or may include a chip and other discrete devices.

Drawings

Fig. 1 is a schematic diagram of a system architecture applied to a data transmission method according to an embodiment of the present application;

fig. 2 is a schematic block diagram illustrating an interaction flow of a first communication device and a second communication device according to an embodiment of the present application;

fig. 3 is a schematic diagram of a control information scheduling transport block according to an embodiment of the present application;

fig. 4 is a schematic diagram of another control information scheduling transport block according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a first communication device according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a second communication device according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of another first communication device according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of another second communication device according to an embodiment of the present application.

Detailed Description

Embodiments of the present application are described below with reference to the accompanying drawings.

The terms "first," "second," and the like in the description and in the claims of the present application and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances and are merely descriptive of the various embodiments of the application and how objects of the same nature can be distinguished. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of elements is not necessarily limited to those elements, but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The technical solution of the embodiment of the present application can be applied to various data processing communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), single carrier frequency division multiple access (SC-FDMA), and other systems. The term "system" may be used interchangeably with "network". CDMA systems may implement wireless technologies such as Universal Terrestrial Radio Access (UTRA), CDMA2000, and the like. UTRA may include Wideband CDMA (WCDMA) technology and other CDMA variant technologies. CDMA2000 may cover the Interim Standard (IS) 2000(IS-2000), IS-95 and IS-856 standards. TDMA systems may implement wireless technologies such as global system for mobile communications (GSM). The OFDMA system may implement wireless technologies such as evolved universal terrestrial radio access (E-UTRA), Ultra Mobile Broadband (UMB), IEEE 802.11(Wi-Fi), IEEE 802.16(WiMAX), IEEE 802.20, Flash OFDMA, etc. UTRA and E-UTRA are UMTS as well as UMTS evolved versions. Various versions of 3GPP in Long Term Evolution (LTE) and LTE-based evolution are new versions of UMTS using E-UTRA. The fifth Generation (5 Generation, abbreviated as "5G") communication system and the New Radio (NR) are the next Generation communication systems under study. In addition, the communication system can also be applied to future-oriented communication technologies, and all the technical solutions provided by the embodiments of the present application are applied. The system architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not form a limitation on the technical solution provided in the embodiment of the present application, and as a person of ordinary skill in the art knows that along with the evolution of the network architecture and the appearance of a new service scenario, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.

The communication system provided by the embodiment of the application can comprise: the communication device comprises a first communication device and a second communication device, and data transmission can be carried out between the first communication device and the second communication device. For example, the first communication device may include: the terminal device, the second communication device may include: a network device. Or the first communication device may include: a terminal device, the second communication device may comprise: and another terminal device. Or the first communication device may include: a network device, the second communication device may comprise: another network device.

Fig. 1 shows a schematic structural diagram of a Radio Access Network (RAN) according to an embodiment of the present application. The RAN may be a base station access system of a 2G network (i.e. the RAN comprises base stations and base station controllers), or may be a base station access system of a 3G network (i.e. the RAN comprises base stations and RNCs), or may be a base station access system of a 4G network (i.e. the RAN comprises enbs and RNCs), or may be a base station access system of a 5G network.

The RAN includes one or more second communication devices, for example a second communication device may include: a network device. The network device may be any device with a wireless transceiving function, or a chip disposed in a specific device with a wireless transceiving function. The network devices include, but are not limited to: a base station (e.g. a base station BS, a base station NodeB, an evolved base station eNodeB or eNB, a base station gdnodeb or gNB in a fifth generation 5G communication system, a base station in a future communication system, an access node in a WiFi system, a wireless relay node, a wireless backhaul node), etc. The base station may be: macro base stations, micro base stations, pico base stations, small stations, relay stations, etc. A network, or future evolution network, in which multiple base stations may support one or more of the technologies mentioned above. The core network may support a network of one or more of the above mentioned technologies, or a future evolution network. A base station may include one or more Transmission Receiving Points (TRPs) that are co-sited or non-co-sited. The network device may also be a wireless controller, a Centralized Unit (CU), a Distributed Unit (DU), or the like in a Cloud Radio Access Network (CRAN) scenario. The network device may also be a server, a wearable device, or a vehicle mounted device, etc. The following description will take a network device as an example of a base station. The multiple network devices may be base stations of the same type or different types. The base station may communicate with the terminal devices 1-6, and may also communicate with the terminal devices 1-6 through the relay station. The terminal devices 1-6 may support communication with multiple base stations of different technologies, for example, the terminal devices may support communication with a base station supporting an LTE network, may support communication with a base station supporting a 5G network, and may support dual connectivity with a base station of an LTE network and a base station of a 5G network. Such as a RAN node that accesses the terminal to the wireless network. Currently, some examples of RAN nodes are: a gbb, a Transmission Reception Point (TRP), an evolved Node B (eNB), a Radio Network Controller (RNC), a Node B (NB), a Base Station Controller (BSC), a Base Transceiver Station (BTS), a home base station (e.g., home evolved Node B, or home Node B, HNB), a Base Band Unit (BBU), or a wireless fidelity (Wifi) Access Point (AP), etc. In one network configuration, a network device may include a Centralized Unit (CU) node, or a Distributed Unit (DU) node, or a RAN device including a CU node and a DU node.

The terminal 1-6, also called User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), a terminal, etc., is a device for providing voice and/or data connectivity to a user, or a chip disposed in the device, such as a handheld device, a vehicle-mounted device, etc., which has wireless connectivity. Currently, some examples of terminal devices are: a mobile phone (mobile phone), a tablet computer, a notebook computer, a palm top computer, a Mobile Internet Device (MID), a wearable device, a Virtual Reality (VR) device, an Augmented Reality (AR) device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote surgery (remote medical supply), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (smart security), a wireless terminal in city (smart city), a wireless terminal in home (smart home), and the like. The terminal device provided by the embodiment of the application can be a low-complexity terminal device and/or a terminal device in a coverage enhancement A mode.

In the embodiment of the present application, the base station and the UEs 1 to 6 form a communication system, in which the base station transmits one or more of system information, RAR message, and paging message to one or more of the UEs 1 to 6, and the UEs 4 to 6 also form a communication system, in which the UE5 may be implemented as a function of the base station, and the UE5 may transmit one or more of system information, control information, and paging message to one or more of the UEs 4 and 6.

In order to solve the problem of excessive indication overhead of CI scheduling transport blocks in the prior art, the embodiments of the present application provide a data transmission method, which is suitable for a scenario where control information schedules transport blocks, where the control information in the embodiments of the present application may specifically include downlink control information. Referring to fig. 2, a schematic view of an interaction flow between a network device and a terminal device according to an embodiment of the present application is shown, where the data transmission method according to the embodiment of the present application mainly includes the following steps:

201. the second communication device determines the number of transport blocks scheduled by the control information and the second communication device determines the size of the transport blocks scheduled by the control information.

In the embodiment of the present application, the control information is generated by the second communication device, and the second communication device issues a control instruction to the first communication device through the control information, where the control information is denoted by CI in the following examples. The second communication device first determines the number of Transport Blocks (TBs) used for data transmission. For example, the number of transport blocks determined by the second communication device may be 1, or 2, or 3, or 4. The second communication device also needs to determine the transport block size (TB size) of each of the transport blocks scheduled by the control information. For example, the second communication device may also need to determine a newly transmitted transport block and/or a retransmitted transport block among the transport blocks scheduled by the control information. The control information determines that all the scheduled transmission blocks may be all newly transmitted transmission blocks or retransmitted transmission blocks, or some of the transmission blocks in all the transmission blocks are newly transmitted and some of the transmission blocks are retransmitted.

For example, as shown in fig. 3, the control information may schedule 8 transport blocks, which are TB1, TB2 …, TB7, and TB8, respectively. As also shown in fig. 4, the control information may schedule 4 transport blocks, TB1, TB2, TB3, TB4, respectively. Each TB in fig. 3 and 4 corresponds to a transmission status, for example, TB1 is a newly transmitted transport block and TB2 is a retransmitted transport block.

In some embodiments of the present application, the first communication device may operate in coverage enhancement mode B, or coverage enhancement level 2, or coverage enhancement level 3. When the first communication device operates in coverage enhancement mode B, the maximum number of transport blocks scheduled by the control information may be 4. Without limitation, the first communication device may also operate in other modes, for example, may operate in coverage enhancement mode a, or coverage enhancement level 0, or coverage enhancement level 1.

202. The second communication equipment generates first information and sends the first information to the first communication equipment, and the bit state of the first information indicates the number of transmission blocks scheduled by the control information;

wherein, the first information comprises X bits, and X is a positive integer;

at least one bit state in the bit states corresponding to the X bits can be used for indicating that the control information sent by the second communication equipment is used for scheduling a single transmission block;

at least one bit state in the bit states corresponding to the X bits can be used for indicating that the control information is used for first scheduling, wherein the first scheduling means that the control information can schedule a plurality of transport blocks, and newly transmitted transport blocks and retransmitted transport blocks exist in all the transport blocks which can be scheduled by the control information.

In some embodiments of the present application, in order to enable a first communication device to obtain the number of transmission blocks determined by a second communication device, the second communication device may generate a first message, and send the first message to the first communication device, so that the first communication device can obtain the number of transmission blocks determined by the second communication device according to the received first message.

In this embodiment of the application, the first information includes X bits, where X is a positive integer, for example, a value of X may be 1, or a value of X is a positive integer greater than 1. For example, when the first information includes 1 bit, when the bit state corresponding to X bits is 0, it indicates that the control information is used for scheduling of a single transport block, and when the bit state corresponding to X bits is 1, it indicates that the control information is used for the first scheduling. For example, when the first information includes 2 bits, when the bit state corresponding to X bits is 00, it indicates that the control information is used for scheduling of a single transport block, and when the bit state corresponding to X bits is 01, or 10, or 11, it indicates that the control information is used for the first scheduling.

In this embodiment of the present application, the first information generated by the second communication device has a plurality of bit states, for example, the bit states corresponding to X bits at least include: a first state and a second state. In order to save the indication overhead of the control information, in the embodiment of the present application, at least one bit state of the bit states corresponding to the X bits generated by the second communication device can be used to indicate that the control information sent by the second communication device is used for scheduling a single transport block, that is, the control information only schedules 1 transport block. In addition, at least one bit state in the bit states corresponding to the X bits can be used to indicate that the control information is used for the first scheduling, where the first scheduling refers to that the control information can schedule a plurality of transport blocks, and all the transport blocks that the control information can schedule include a newly transmitted transport block and a retransmitted transport block, that is, the control information can schedule a part of the newly transmitted transport block and a part of the retransmitted transport block. It should be noted that, the control information is capable of scheduling all the scheduled transport blocks, including a newly transmitted transport block and a retransmitted transport block, but in the embodiment of the present application, the specific scheduled transport block type of the control information is not limited.

203. And the second communication equipment receives the data sent by the first communication equipment according to the determined number of the transmission blocks and the size of the transmission blocks, or 204, the second communication equipment sends the data to the first communication equipment according to the determined number of the transmission blocks and the size of the transmission blocks.

In this embodiment of the present application, after the second communication device sends the first information to the first communication device, where a bit state of the first information indicates the number of transport blocks scheduled by the control information, the second communication device may perform data transmission with the first communication device according to the determined number of transport blocks and the determined size of the transport block corresponding to each transport block. For example, the second communication device determines the number of the transmission blocks that can be used for current data transmission according to the determined number of the transmission blocks, and the second communication device determines the size of the transmission block that can be used for current data transmission according to the determined size of the transmission block corresponding to each transmission block. Similarly, the first communication device determines the number of transmission blocks which can be used for current data transmission according to the determined number of transmission blocks, and determines the size of the transmission block which can be used for current data transmission according to the determined size of the transmission block corresponding to each transmission block. Further, when the second communication device sends data to the first communication device, the second communication device needs to determine whether each transport block in all transport blocks scheduled by the control information is a newly transmitted transport block or a retransmitted transport block.

211. The method comprises the steps that first communication equipment receives first information sent by second communication equipment;

wherein, the first information comprises X bits, and X is a positive integer;

In the embodiment of the present application, the first information includes X bits, where X is a positive integer. For example, when the first information includes 1 bit, when the bit state corresponding to X bits is 0, it indicates that the control information is used for scheduling of a single transport block, and when the bit state corresponding to X bits is 1, it indicates that the control information is used for the first scheduling. For example, when the first information includes 2 bits, when the bit state corresponding to X bits is 00, it indicates that the control information is used for scheduling of a single transport block, and when the bit state corresponding to X bits is 01, or 10, or 11, it indicates that the control information is used for the first scheduling.

212. The first communication device determines the number of transmission blocks scheduled by the control information according to the bit state of the first information, and determines the size of the transmission blocks scheduled by the control information according to the control information.

In this embodiment of the application, the second communication device sends the first information to the first communication device, and after the first communication device receives the first information in step 211, the first communication device analyzes the first information to determine the number of transport blocks scheduled by the control information. For example, the number of transport blocks determined by the second communication device may be 1, or 2, or 3, or 4. The first communication device also needs to determine a transport block size (TB size) for each of the transport blocks scheduled by the control information. For example, the first communication device may also need to determine a newly transmitted transport block and/or a retransmitted transport block among the transport blocks scheduled by the control information. The control information determines that all the scheduled transmission blocks may be all newly transmitted transmission blocks or retransmitted transmission blocks, or some of the transmission blocks in all the transmission blocks are newly transmitted and some of the transmission blocks are retransmitted.

213. And the first communication device receives the data sent by the second communication device according to the determined number of the transmission blocks and the size of the transmission blocks, or 214, the first communication device sends the data to the second communication device according to the determined number of the transmission blocks and the size of the transmission blocks.

In this embodiment of the application, after the first communication device receives the first information sent by the second communication device, the first communication device may perform data transmission with the second communication device according to the determined number of transmission blocks and the determined size of the transmission block corresponding to each transmission block. The first communication device determines the number of transmission blocks which can be used for current data transmission according to the determined number of the transmission blocks, and determines the size of the transmission block which can be used for current data transmission according to the size of the transmission block corresponding to each determined transmission block. Further, when the first communication device sends data to the second communication device, the first communication device needs to determine whether each transport block in all transport blocks scheduled by the control information is a newly transmitted transport block or a retransmitted transport block.

In some embodiments of the present application, at least one bit state of the bit states corresponding to the X bits can be used to indicate that the control information is used for scheduling of multiple transport blocks, and the multiple transport blocks are all newly transmitted transport blocks; and/or the presence of a gas in the gas,

at least one bit state in the bit states corresponding to the X bits can be used for indicating that the control information is used for scheduling a plurality of transport blocks, and the plurality of transport blocks are all retransmitted transport blocks.

The bit states corresponding to the X bits include multiple bit states, and besides indicating that the control information is used for scheduling of a single transport block and for the first scheduling, the bit states corresponding to the X bits may also be used for indicating that multiple transport blocks are all retransmitted transport blocks or all newly transmitted transport blocks. Therefore, the multiple different bit states of the first information provided by the embodiment of the application can indicate the transport block types corresponding to all transport blocks scheduled by the control information, so that the indication overhead of the control information can be reduced.

In some embodiments of the present application, the data transmission method provided in the embodiments of the present application may further include, in addition to performing the foregoing steps, the following steps:

the method comprises the steps that a first communication device receives a high-level signaling sent by a second communication device, wherein the high-level signaling comprises first information; alternatively, the first and second electrodes may be,

the first communication equipment receives control information sent by the second communication equipment, wherein the control information comprises first information.

In some embodiments of the present application, at least one bit state of the bit states corresponding to the X bits can be used to indicate that the control information is used for the second scheduling; alternatively, the first and second electrodes may be,

the high-level signaling or the control information indicates that the control information is also used for second scheduling, wherein the high-level signaling is signaling sent by the second communication equipment to the first communication equipment;

the second scheduling refers to that all the transport blocks scheduled by the control information can only be all newly transmitted transport blocks or all retransmitted transport blocks.

In this embodiment of the present application, the second scheduling is a scheduling manner different from the first scheduling, and the second scheduling means that all the transport blocks scheduled by the control information can only be all newly transmitted transport blocks or all retransmitted transport blocks, that is, all the data blocks limited in the second scheduling by the control information scheduling can only be all newly transmitted transport blocks or all retransmitted transport blocks. In addition, the first information may indicate the second scheduling, or the higher layer signaling or the control information indicates that the control information is also used for the second scheduling, and as to which information or signaling indicates the control information is used for the second scheduling, the method is not limited herein.

In some embodiments of the present application, the control information comprises a first field comprising one bit or a plurality of bits;

when the bit state of the first field belongs to the first state set, the first information indicates that the control information is used for first scheduling;

when the bit state of the first field belongs to the second state set, the first information indicates that the control information is used for second scheduling;

the first set of states includes one or more bit states of the first field and the second set of states includes one or more bit states of the first field.

The first field is a component of the first information, for example, the first field may be located at a head of the first information, or may be located at an end of the first field, or the first field is located at a specific position in the first information, which is not limited herein. The first field may have a variety of bit states, for example the first field includes at least: a first set of states and a second set of states. The first field may indicate that the control information is for the first scheduling when the bit state of the first field belongs to a first set of states, e.g., the first set of states may include bit state 00. When the bit state of the first field belongs to a second set of states, indicating control information for the second scheduling, e.g. the second set of states may be 01, 10, 11. Wherein the respective bit states included in the first set of states and the second set of states are non-overlapping.

In an embodiment of the application, the first set of states comprises one or more bit states of the first field and the second set of states comprises one or more bit states of the first field. The number of bits included in the first field is not limited here, and each state included in the first field is not limited here. In the embodiment of the present application, a first field in the first information is used to indicate whether the control information is used for the first scheduling or the second scheduling. Different bit states of the first field are used for indicating whether the control information specifically adopts the first scheduling or the second scheduling, so that the bit overhead of the control information can be saved, and the occupied transmission resources are reduced.

In some embodiments of the present application, at least one bit state of bit states corresponding to X bits can be used to indicate that the control information is used for a third scheduling, where the third scheduling refers to that the control information can schedule a plurality of transport blocks, and all transport blocks that the control information can schedule are newly transmitted transport blocks; and/or the presence of a gas in the gas,

at least one bit state in the bit states corresponding to the X bits can be used to indicate that the control information is used for fourth scheduling, where the fourth scheduling refers to that the control information can schedule multiple transport blocks, and all the transport blocks that the control information can schedule are retransmitted transport blocks.

The bit states corresponding to the X bits may include multiple types, for example, at least one bit state may be used to indicate that the control information is used for the third scheduling, or the at least one bit state may be used to indicate that the control information is used for the fourth degree. In this embodiment of the present application, the third scheduling means that the control information can schedule multiple transmission blocks, and only a transmission block for scheduling new transmission exists in all transmission blocks that the control information can schedule, and the fourth scheduling means that the control information can schedule multiple transmission blocks, and only a transmission block for scheduling retransmission exists in all transmission blocks that the control information can schedule. In combination with the description herein, bit states corresponding to X bits in the embodiment of the present application may indicate a plurality of different scheduling manners, and a specific scenario needs to be combined to determine a scheduling manner indicated by at least one bit state in the bit states corresponding to the X bits.

In some embodiments of the present application, the HARQ process index of the first transport block scheduled by the control information is 0, or the HARQ process index of the first transport block is a preset value, or the HARQ process index of the first transport block is a fixed value; alternatively, the first and second electrodes may be,

when the number of the transport blocks scheduled by the control information is greater than M, the HARQ process index of the first transport block in the multiple transport blocks scheduled by the control information is 0, or a preset value, or a fixed value, where M is a preset or configured positive integer; and/or the presence of a gas in the gas,

when the number of the transport blocks scheduled by the control information is less than L, the control information indicates the HARQ process index of the first transport block in the scheduled transport blocks in the HARQ process index set, the HARQ process index set at least includes 2 HARQ process indexes, wherein L is a preset or configured positive integer.

In this embodiment of the present application, the HARQ process index corresponding to the transport block scheduled by the control information sent by the second communication device may also be determined by using the foregoing exemplary manner. For example, an achievable method is that the HARQ process index of the first transport block scheduled by the control information is 0, or the HARQ process index of the first transport block is a preset value, or the HARQ process index of the first transport block is a fixed value, in this case, the second communication device does not need to indicate the HARQ process index of the first transport block, and the first communication device may take a preconfigured value of the HARQ process index of the first transport block to determine the HARQ process index of the first transport block, thereby saving the indication overhead of the control information.

For another example, the HARQ process index of the first transport block is determined according to the size of the number of transport blocks scheduled by the control information. For example, M and L are set, it is determined whether the number of transport blocks scheduled by the control information is greater than M, or is less than L, and when the number of transport blocks scheduled by the control information is greater than M, the HARQ process index of a first transport block in the multiple transport blocks scheduled by the control information is 0, or is a preset value, or is a fixed value. When the number of the transport blocks scheduled by the control information is less than L, the control information indicates, in the HARQ process index set, the HARQ process index of the first transport block in the scheduled transport blocks, wherein the second communication device may also send HARQ process index set information to the first communication device, so that the first communication device may determine at least one HARQ process index set according to the HARQ process index set information. The second communication device may send HARQ process index set information to the first communication device, so that the second communication device further sends control information to the first communication device, where the control information indicates the HARQ index and/or indicates the number of transport blocks in the HARQ process index set determined by the second communication device, and therefore, the indication overhead of the control information may be reduced.

Further, in some embodiments of the present application, M is 1, or M is 2, or M is 3, or M is 4, or M is 5, or M is 6; alternatively, the first and second electrodes may be,

l-2, or L-3, or L-4, or L-5, or L-6.

Wherein, the values of M and L are given as corresponding examples. Optionally, L ═ M + 1. Without limitation, in an actual application scenario, the values of M and L may be configured according to a specific scenario. When the number of the scheduled transport blocks is large, it is considered that the state of each transport block may be initial transmission or retransmission, so that a large number of combinations of states indicating the transport blocks are provided, and the required bit overhead is also large. Therefore, it can be specified that when the number of the transport blocks is greater than M, the HARQ process index of the first transport block is limited to a fixed value, which greatly reduces the possibility of indication, thereby saving the indication overhead of the control information. When the number of the scheduled transport blocks is small, it is considered that the state of each transport block may be initial transmission or retransmission, so that the combinations indicating the states of the transport blocks are not many, and the required bit overhead is small. Therefore, there is no need to limit the HARQ process index of the first transport block to a fixed value, which improves the flexibility of indication.

In some embodiments of the present application, when the number of transport blocks scheduled by the control information belongs to the set {2,3,4,5,6,7,8}, the HARQ process index of the first transport block indicated by the first information takes a value of 0; alternatively, the first and second electrodes may be,

when the number of the transport blocks scheduled by the control information belongs to the set {3,4,5,6,7,8}, the HARQ process index value of the first transport block indicated by the first information is 0; alternatively, the first and second electrodes may be,

and when the number of the transport blocks scheduled by the control information belongs to the set {4,5,6,7,8}, the HARQ process index value of the first transport block indicated by the first information is 0.

In the case that the number of transport blocks scheduled by the control information belongs to any one of the above sets, the HARQ process index of the first transport block takes a value of 0, and at this time, the second communication device does not need to indicate the HARQ process index of the first transport block, and the first communication device can determine the HARQ process index of the first transport block by taking a value of a pre-configuration of the HARQ process index of the first transport block, thereby saving the indication overhead of the control information.

In some embodiments of the present application, when the number of transport blocks scheduled by the control information is greater than N, the first communication device supports performing response feedback on the received transport blocks in a bundling (or multiplexing) manner, but does not support performing separate response feedback on each of the received transport blocks, where N is a preset or configured positive integer; and/or the presence of a gas in the gas,

and when the number of the transport blocks scheduled by the control information is less than H, the first communication device supports independent response feedback on each transport block in the received multiple transport blocks, wherein H is a preset or configured positive integer.

When the number of the transmission blocks scheduled by the control information is greater than N, the first communication device supports response feedback on the received transmission blocks in a bundling or multiplexing mode, but does not support separate response feedback on each of the received transmission blocks, so that the indication overhead of the control information is reduced. The values of N and H have various realizable situations, but it is not limited to that, in an actual application scenario, the values of N and H may be configured according to a specific scenario, for example, H and N satisfy the following relationship: h ═ N + 1.

In some embodiments of the present application, when the control information is used for the first scheduling,

determining the HARQ process indexes of other transport blocks except the first transport block in the plurality of transport blocks according to the HARQ process index of the first transport block; and/or the presence of a gas in the gas,

each transport block in the plurality of transport blocks corresponds to one HARQ process index, and the plurality of HARQ process indexes corresponding to the plurality of transport blocks are consecutive.

And if the control information schedules the plurality of transport blocks, the first information is used for indicating the HARQ process index of the first transport block, and the HARQ process indexes of other transport blocks except the first transport block in the plurality of transport blocks are determined according to the HARQ process index of the first transport block. For example, the HARQ process indexes of other transport blocks may be calculated by using a preset calculation method to obtain the HARQ process indexes of the other transport blocks. For example, the preset calculation manner may include a plurality of calculation rules, which are described in detail in the following embodiments. For each transport block in the multiple transport blocks, one HARQ process index is corresponding to each transport block, that is, each transport block is configured with one HARQ process index, and multiple HARQ process indexes corresponding to the multiple transport blocks are consecutive, and when the first information is used to indicate the HARQ process index of the first transport block, the HARQ process indexes of other transport blocks may be consecutively obtained according to all the HARQ process indexes. For example, the HARQ process index of the first transport block is 1, and if the control information schedules 3 transport blocks in total, the HARQ process indexes of other transport blocks start from HARQ process index 1, and the HARQ process indexes of other 3 transport blocks are determined to be 2,3, and 4 by using the continuous rule.

Further, in some embodiments of the application, when the control information schedules 1 transport block, the first information indicates the HARQ process index of the transport block in a value set {0,1}, and when the number of the transport blocks scheduled by the control information belongs to the set {2,3,4,5,6,7,8}, the HARQ process index of the first transport block indicated by the first information is taken as 0. In combination with the example in table 1, when the control information schedules 1 transport block, the HARQ process index of the first information in the transport block is 0, or the HARQ process index of the first transport block is indicated in 1, and at this time, the number of transport blocks scheduled by the control information belongs to the set {2,3,4,5,6,7,8 }.

In some embodiments of the application, as shown in table 6, when the control information schedules 1 transport block, the first information indicates the HARQ process index of the transport block in a value set {0,1}, and when the number of the transport blocks scheduled by the control information belongs to the set {2,3,4}, the HARQ process index of the first transport block indicated by the first information takes a value of 0.

In some embodiments of the present application, as an example in table 2, when the control information schedules 1 transport block, the HARQ process index of the transport block is indicated in a value set {0,1,2,3,4,5,6,7} by the first information, and when the number of transport blocks scheduled by the control information belongs to the set {2,3,4,5,6,7,8}, the HARQ process index of the first transport block indicated by the first information takes a value of 0; alternatively, the first and second electrodes may be,

in some embodiments of the present application, as illustrated in table 3, when the control information schedules 1 transport block, the first information indicates the HARQ process index of the transport block in the value set {0,1,2,3,4,5,6,7}, when the control information schedules 2 transport blocks, the first information indicates the HARQ process index of the first transport block in the value set {0,2}, and when the number of transport blocks scheduled by the control information belongs to the set {3,4,5,6,7,8}, the HARQ process index of the first transport block indicated by the first information takes a value of 0; alternatively, the first and second electrodes may be,

in some embodiments of the present application, as an example in table 7, when the control information schedules 1 transport block, the first information indicates the HARQ process index of the transport block in a value set {0,1}, and when the control information schedules 2 transport blocks, the first information indicates the HARQ process index of the transport block in the value set {0,2}, and when the number of the transport blocks scheduled by the control information belongs to the set {3,4}, the HARQ process index of the first transport block indicated by the first information takes a value of 0.

In some embodiments of the present application, as an example in table 4, when the control information schedules 2 transport blocks, the first information indicates the HARQ process index of the first transport block in the value set {0,2,4,6}, when the control information schedules 3 transport blocks, the first information indicates the HARQ process index of the first transport block in the value set {0,3,4}, and when the number of transport blocks scheduled by the control information belongs to the set {4,5,6,7,8}, the HARQ process index of the first transport block indicated by the first information takes a value of 0; alternatively, the first and second electrodes may be,

in some embodiments of the present application, as an example in table 5, when the control information schedules 2 transport blocks, the first information indicates the HARQ process index of the first transport block in the value set {0,2,4,6}, when the control information schedules 4 transport blocks, the first information indicates the HARQ process index of the first transport block in the value set {0,4}, and when the number of transport blocks scheduled by the control information belongs to the set {3,5,6,7,8}, the HARQ process index of the first transport block indicated by the first information takes a value of 0. The HARQ process index of the first transmission block is limited to be a fixed value, so that the indication possibility is greatly reduced, and the indication overhead of control information is saved.

When the

control information schedules

In order to better understand and implement the above-described scheme of the embodiments of the present application, the following description specifically illustrates a corresponding application scenario.

In this embodiment of the present application, a first communication device is taken as a UE, a second communication device is taken as a base station for illustration, and the aforementioned control information is specifically DCI.

When the DCI schedules multiple transport blocks, HARQ process indexes corresponding to the multiple transport blocks are continuous. The HARQ process index of the first transport block of the plurality of transport blocks is predefined or indicated, and the HARQ processes of the other transport blocks of the plurality of transport blocks are determined by the HARQ process index of the first transport block.

Feedback information between different TBs can be bundled (Bundling) and binding rules are predefined.

A combination of TB indication and feedback indication is defined, and indication overhead is reduced.

In the embodiment of the application, the second communication device sends the first information to the first communication device. The second communication device may be a base station, or a device with transmission capability. The first communication device may be a user equipment, or a device with receiving capabilities. The first information may be included in higher layer (e.g., RRC or medium access control) signaling or physical layer signaling.

The first information may be included in higher layer (e.g., RRC or medium access control) signaling or physical layer signaling. The definition of the first information is as described above and is not described herein.

Optionally, higher layer signaling (e.g., RRC) or physical layer signaling (e.g., DCI) indicates whether the DCI supports hybrid TB scheduling or does not support hybrid TB scheduling. DCI supporting hybrid TB scheduling means: the DCI is able to schedule some TBs to be newly transmitted TBs and some TBs to be retransmitted TBs. The DCI does not support hybrid TB scheduling means that the DCI can only schedule all new TBs or schedule all retransmission TBs.

Alternatively, the hybrid TB scheduling may contain that all TBs of the DCI scheduling are new transmissions.

Alternatively, the hybrid TB scheduling may contain that all TBs of the DCI scheduling are retransmissions.

Optionally, higher layer signaling (e.g. RRC) or physical layer signaling (e.g. DCI) indicates one or more of that all the DCI scheduled TBs are new transmissions, that all the DCI scheduled TBs are retransmissions, and that the DCI scheduled TBs are hybrid scheduling.

For hybrid TB scheduling, the HARQ process indexes of the other TBs of the DCI scheduling are determined from the HARQ process index of the first TB (e.g., determined in increasing order or in decreasing order). The HARQ process index of the first TB may be predefined, or may be signaled or indicated by DCI. The HARQ process indexes corresponding to the respective TBs are consecutive.

Alternatively, when the number of TBs scheduled by the DCI is greater than N, the HARQ process index of the first TB is fixed. For example, N is 1, and the HARQ process index of the first TB is fixed to 0 or 7.

Table 1 below illustrates a method of indicating a combination of the number of TBs, the HARQ process index, the new-transmission TB, and the retransmission TB with 9 bits. Optionally, the method is applied to Control Element (CE) Mode (Mode) a, or overlay enhancement level 0, or overlay enhancement level 1.

One or more of the 9 bits status indicates that the DCI schedules one TB. Different bit states in the 9 bits indicate the HARQ process corresponding to the TB. Optionally, when the DCI schedules one TB, the HARQ process index corresponding to the TB is 0.

When M (M >1) TBs are scheduled by DCI, the HARQ process index of the first TB of the M TBs is 0, and the HARQ process indexes of the other TBs are determined according to the HARQ process index of the first TB in an increasing order. If the HARQ process index exceeds the maximum value (e.g. 7), the HARQ process index corresponding to the TB block may also be determined in a round-robin (i.e. starting from 0).

Table 1: the DCI indicates a combination of the number of scheduled TBs, HARQ process index, newly transmitted TBs, and retransmitted TBs.

Optionally, 1 bit is used in the DCI to indicate whether the DCI schedules one TB or multiple TBs. Alternatively, the bit status of multiple bits in the DCI indicates whether the DCI schedules one TB or multiple TBs. When the DCI schedules one TB, the index corresponding to the TB may also be indicated with 1 bit. When the DCI schedules multiple TBs, as in table 2 or table 3, the number of the scheduled TBs of the DCI, HARQ process indexes of all the scheduled TBs, and a combination of a newly transmitted TB and a retransmitted TB may also be indicated with 9 bits. The DCI indicates that the DCI scheduled TB may be all newly transmitted TBs or the DCI scheduled TB may be all retransmitted TBs.

Table 2: DCI indicates the combination of the number of scheduled TBs, HARQ process index, newly transmitted TB and retransmitted TB

Table 3: DCI indicates the combination of the number of scheduled TBs, HARQ process index, newly transmitted TB and retransmitted TB

In order to reduce the indication overhead and the flexibility of providing HARQ process index indication, in hybrid scheduling, the TB scheduled by the DCI indication DCI may not include all newly transmitted TBs, nor include the TB scheduled by the DCI indication DCI is all retransmitted TBs. As such, table 4 and table 5 illustrate a method of indicating a combination of the TB number, HARQ process index, new TB, and retransmission TB with 9 bits. In this method, the TB scheduled by the DCI does not include all newly transmitted TBs, nor does it include the TB scheduled by the DCI being all retransmitted TBs.

When the DCI schedules 2 TBs, there are 4 HARQ process indexes corresponding to the 2 TBs. The DCI indicates the HARQ process index of 2 TBs, or the DCI indicates the HARQ process index of the first TB of the 2 TBs.

When 3 TBs are scheduled by DCI, there are 3 HARQ process indexes corresponding to the 3 TBs. The DCI indicates the HARQ process index of the 3 TBs, or the DCI indicates the HARQ process index of the first TB of the 3 TBs.

Table 4: DCI indicates the combination of the number of scheduled TBs, HARQ process index, newly transmitted TB and retransmitted TB

Table 5 below illustrates another method of indicating a combination of the number of TBs, the HARQ process index, the new TB, and the retransmission TB with 9 bits. Alternatively, the method is applicable to CEModeA. Table 5 below does not support the DCI to indicate that the DCI scheduled TB is all newly transmitted TBs, nor does it support the DCI to indicate that the DCI scheduled TB is all retransmitted TBs.

When the DCI schedules 2 TBs, there are 3 HARQ process indexes corresponding to the 2 TBs. The DCI indicates the HARQ process index of 2 TBs, or the DCI indicates the HARQ process index of the first TB of the 2 TBs.

When 4 TBs are scheduled by DCI, there are 2 HARQ process indexes corresponding to the 4 TBs. The DCI indicates the HARQ process index of the 4 TBs, or the DCI indicates the HARQ process index of the first TB of the 4 TBs.

Table 5: DCI indicates the combination of the number of scheduled TBs, HARQ process index, newly transmitted TB and retransmitted TB

Table 6 below illustrates a method of indicating a combination of the number of TBs, the HARQ process index, the new-transmission TB, and the retransmission TB with 5 bits. Alternatively, the method is applicable to CEModeB, or overlay enhancement level 2, or overlay enhancement level 3.

One or more of the 5 bits of bit status indicates that the DCI schedules one TB. Different bit states in the 5 bits indicate the HARQ process corresponding to the TB. Optionally, when the DCI schedules one TB, the HARQ process index corresponding to the TB is 0.

One or more of the 5 bits of bit status indicates that the DCI schedules M (M >1) TBs. The HARQ process index of the first TB among the M TBs is 0, and the HARQ process indexes of the other TBs are determined in an increasing or decreasing order according to the HARQ process index of the first TB.

Table 6: DCI indicates the combination of the number of scheduled TBs, HARQ process index, newly transmitted TB and retransmitted TB

Optionally, the HARQ process index of the first TB scheduled by the DCI is a fixed value regardless of the number of TBs scheduled by the DCI. E.g., fixed to 0.

Alternatively, as shown in table 7 below, 1 bit is used in DCI to indicate whether the DCI schedules one TB or a plurality of TBs. Alternatively, the bit status of multiple bits in the DCI indicates whether the DCI schedules one TB or multiple TBs. When the DCI schedules one TB, the index corresponding to the TB may also be indicated with 1 bit. When the DCI schedules multiple TBs, as in table 7, the number of the scheduled TBs of the DCI, HARQ process indexes of all the scheduled TBs, and a combination of a newly transmitted TB and a retransmitted TB may also be indicated with 5 bits. The DCI indicates that the DCI scheduled TB may be all newly transmitted TBs or the DCI scheduled TB may be all retransmitted TBs.

Table 7: DCI indicates the combination of the number of scheduled TBs, HARQ process index, newly transmitted TB and retransmitted TB

The first field is contained in the DCI, and the bit state of the first field is used for indicating whether the DCI is used for single TB scheduling or multi-TB scheduling. The bit state of the first field belongs to a first set of states, DCI is for single TB scheduling. The bit state of the first field belongs to the second set of states, and the DCI is for multi-TB scheduling. The first field may contain one bit or a plurality of bits.

Table 8 below illustrates an indication method in which the first field includes 1 bit and the second field includes 1 bit. When the bit status of the first field indicates that the DCI is usable for multi-TB scheduling, optionally, the DCI may further include a second field, and the bit status of the second field may further indicate whether the DCI is used for non-hybrid scheduling or hybrid scheduling. The bit state of the second field belongs to a third set of states, and the DCI is for non-hybrid scheduling. The bit state of the second field belongs to a fourth state set, and the DCI is for hybrid scheduling. The second field may contain one bit or a plurality of bits.

TABLE 8 Single TB and multiple TB indications, Mixed scheduling and non-mixed scheduling indications

Optionally, the bit status of the first field may be used to indicate whether the DCI is for single-TB scheduling or multi-TB scheduling, and the bit status of the first field may also be used to indicate whether the DCI is for all new transmissions, all retransmissions, or hybrid scheduling.

Table 9 below illustrates that the first field contains 2 bits for indicating single TB, multiple TBs, all new transmissions, all retransmissions.

Bit state of the first field
00	monotB
01	Multiple TB, all new transmissions
10	Multiple TBs, all retransmissions
11	Multiple TB, hybrid scheduling

Alternatively, the hybrid schedule may include all new transmissions and all retransmissions.

Optionally, the hybrid schedule does not include all new transmissions and does not include all retransmissions.

Optionally, the DCI does not support hybrid scheduling, and the DCI only supports all new transmissions or all retransmissions.

Optionally, 1 bit in the DCI indicates whether the DCI is for hybrid scheduling or non-hybrid scheduling. When the DCI is used for hybrid scheduling, the hybrid scheduling is also indicated with Y bits in the DCI. In non-hybrid scheduling, X bits are also used in DCI to indicate all new transmissions or all retransmissions. Wherein, Y > ═ X. Such as Y ═ 9 or 10, and X ═ 9. For example, 8 bits of the X bits indicate the scheduled TB and the corresponding HARQ process index in a bitmap indication manner. 1 bit of the X bits indicates whether the scheduled TB is a full new transmission or a full retransmission.

Optionally, when the number of scheduled TBs is greater than K, ACK/NACK bundling or ACK/NACK multiplexing is supported. K is a fixed value or a value indicated by the first node.

An example of ACK/NACK bundling is given in table 10 below, where TB scheduling and initial retransmission indications are as follows:

as shown in the following table 11, another example of performing ACK/NACK bundling when multiple TBs are scheduled is shown, where the TB scheduling and initial retransmission indications are as follows:

as can be seen from the foregoing illustration, the flexibility of the HARQ process index is not important enough compared to the flexibility of the TB number indication. Therefore, HARQ processes corresponding to all TBs scheduled by the DCI are limited, DCI bit overhead is optimized, and DCI transmission performance is improved. The prior art needs at least 16 bits to indicate the scheduled TB, HARQ process index, new TB or retransmitted TB. The embodiment of the application can indicate the TB, the HARQ process index, the newly transmitted TB or the retransmitted TB only by 7 to 9 bits.

It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present application is not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this application.

To facilitate better implementation of the above-described aspects of the embodiments of the present application, the following also provides relevant means for implementing the above-described aspects.

Referring to fig. 5, which is a schematic structural diagram of a first communication device in an embodiment of the present application, the first communication device 500 includes:

a receiving module 501, configured to receive first information sent by a second communication device;

wherein the first information comprises X bits, and X is a positive integer;

at least one bit state in the bit states corresponding to the X bits can be used to indicate that the control information sent by the second communication device is used for scheduling a single transport block;

at least one bit state in the bit states corresponding to the X bits can be used to indicate that the control information is used for first scheduling, where the first scheduling refers to that the control information can schedule multiple transport blocks, and all the transport blocks that the control information can schedule have newly transmitted transport blocks and retransmitted transport blocks;

a processing module 502, configured to determine, according to the bit state of the first information, the number of transmission blocks scheduled by the control information, and determine, according to the control information, the size of the transmission block scheduled by the control information;

a receiving module 501, configured to receive data sent by the second communication device according to the determined number of the transmission blocks and the size of the transmission blocks, or a sending module 503, configured to send data to the second communication device according to the determined number of the transmission blocks and the size of the transmission blocks.

In some embodiments of the present application, the receiving module 501 is configured to receive a higher layer signaling sent by the second communication device, where the higher layer signaling includes the first information; or, the apparatus is configured to receive control information sent by the second communication device, where the control information includes the first information.

Referring to fig. 6, which is a schematic view of a structure of a second communication device in an embodiment of the present application, the second communication device 600 includes:

a processing module 602, configured to determine the number of transport blocks scheduled by control information, and determine a HARQ process index corresponding to each transport block in the transport blocks scheduled by the control information;

the processing module 602 is further configured to generate first information;

a sending module 601, configured to send the first information to a first communication device;

wherein the first information comprises X bits, and X is a positive integer;

a receiving module 603, configured to receive data sent by the first communication device according to the determined number of the transmission blocks and the size of the transmission blocks, or the sending module 601 is further configured to send data to the first communication device according to the determined number of the transmission blocks and the size of the transmission blocks.

In some embodiments of the present application, the sending module is configured to send higher layer signaling to a first communication device, where the higher layer signaling includes the first information; or sending control information to the first communication device, wherein the control information comprises the first information.

In some embodiments of the present application, at least one bit state of the bit states corresponding to the X bits can be used to indicate that the control information is used for scheduling multiple transport blocks, and the multiple transport blocks are all newly transmitted transport blocks; and/or the presence of a gas in the gas,

at least one bit state in the bit states corresponding to the X bits can be used to indicate that the control information is used for scheduling of multiple transport blocks, and the multiple transport blocks are all retransmitted transport blocks.

In some embodiments of the present application, the first communication device receives higher layer signaling sent by the second communication device, where the higher layer signaling includes the first information; alternatively, the first and second electrodes may be,

and the first communication equipment receives control information sent by the second communication equipment, wherein the control information comprises the first information.

the high-level signaling or the control information indicates that the control information is also used for second scheduling, wherein the high-level signaling is signaling sent by the second communication device to the first communication device;

wherein the second scheduling means that all transport blocks scheduled by the control information can only be all newly transmitted transport blocks or all retransmitted transport blocks.

when the bit state of the first field belongs to a first state set, the first information indicates that the control information is used for the first scheduling;

when the bit state of the first field belongs to a second state set, the first information indicates that the control information is used for the second scheduling;

In some embodiments of the present application, the first schedule further includes that all transport blocks scheduled by the control information are newly transmitted transport blocks; and/or the presence of a gas in the gas,

the first schedule further includes that all transport blocks scheduled by the control information are retransmitted transport blocks.

In some embodiments of the present application, an HARQ process index of a first transport block scheduled by the control information is 0, or the HARQ process index of the first transport block is a preset value, or the HARQ process index of the first transport block is a fixed value; alternatively, the first and second electrodes may be,

when the number of the transport blocks scheduled by the control information is greater than M, the HARQ process index of the first transport block in the multiple transport blocks scheduled by the control information is 0, or a preset value, or a fixed value, where M is a preset or configured positive integer; alternatively, the first and second electrodes may be,

when the number of the transport blocks scheduled by the control information is less than L, the control information indicates the HARQ process index of the first transport block in the scheduled transport blocks in a HARQ process index set, where the HARQ process index set at least includes 2 HARQ process indexes, and L is a preset or configured positive integer.

In some embodiments of the present application, said M-1, or said M-2, or said M-3, or said M-4, or said M-5, or said M-6; alternatively, the first and second electrodes may be,

said L-2, or said L-3, or said L-4, or said L-5, or said L-6.

In some embodiments of the present application, when the number of transport blocks scheduled by the control information belongs to a set {2,3,4,5,6,7,8}, an HARQ process index of a first transport block indicated by the first information takes a value of 0; alternatively, the first and second electrodes may be,

when the number of transport blocks scheduled by the control information belongs to a set {3,4,5,6,7,8}, the HARQ process index of the first transport block indicated by the first information takes a value of 0; alternatively, the first and second electrodes may be,

when the number of transport blocks scheduled by the control information belongs to a set {4,5,6,7,8}, the HARQ process index value of the first transport block indicated by the first information is 0.

In some embodiments of the present application, when the number of transport blocks scheduled by the control information is greater than N, the first communications device supports performing acknowledgement feedback on a received transport block in a bundling or multiplexing manner, but does not support performing individual acknowledgement feedback on each of a plurality of received transport blocks, where N is a preset or configured positive integer; alternatively, the first and second electrodes may be,

and when the number of the transport blocks scheduled by the control information is less than H, the first communication device supports individual response feedback on each transport block in the received multiple transport blocks, wherein H is a preset or configured positive integer.

In some embodiments of the present application, when the control information is used for the first scheduling, HARQ process indexes of other transport blocks of the plurality of transport blocks except for a first transport block are determined according to a HARQ process index of the first transport block; and/or the presence of a gas in the gas,

In some embodiments of the present application, when the control information schedules 1 transport block, the first information indicates an HARQ process index of the transport block in a value set {0,1}, and when the number of transport blocks scheduled by the control information belongs to a set {2,3,4,5,6,7,8}, the HARQ process index of the first transport block indicated by the first information takes a value of 0; alternatively, the first and second electrodes may be,

when the control information schedules 1 transport block, the first information indicates the HARQ process index of the transport block in a value set {0,1}, and when the number of the transport blocks scheduled by the control information belongs to a set {2,3,4}, the HARQ process index of the first transport block indicated by the first information is taken as 0.

In some embodiments of the present application, when the control information schedules 1 transport block, the first information indicates an HARQ process index of the transport block in a value set {0,1,2,3,4,5,6,7}, and when the number of transport blocks scheduled by the control information belongs to the value set {2,3,4,5,6,7,8}, the HARQ process index of the first transport block indicated by the first information is 0; alternatively, the first and second electrodes may be,

when the control information schedules 1 transport block, the first information indicates the HARQ process index of the transport block in a value set {0,1,2,3,4,5,6,7}, when the control information schedules 2 transport blocks, the first information indicates the HARQ process index of a first transport block in the value set {0,2}, and when the number of the transport blocks scheduled by the control information belongs to the set {3,4,5,6,7,8}, the HARQ process index of the first transport block indicated by the first information is taken as 0; alternatively, the first and second electrodes may be,

when the control information schedules 1 transport block, the first information indicates the HARQ process index of the transport block in a value set {0,1}, and when the control information schedules 2 transport blocks, the first information indicates the HARQ process index of the transport block in a value set {0,2}, and when the number of the transport blocks scheduled by the control information belongs to a set {3,4}, the HARQ process index of the first transport block indicated by the first information takes a value of 0.

In some embodiments of the present application, when the control information schedules 2 transport blocks, the first information indicates an HARQ process index of a first transport block in a value set {0,2,4,6}, when the control information schedules 3 transport blocks, the first information indicates an HARQ process index of the first transport block in the value set {0,3,4}, and when the number of the transport blocks scheduled by the control information belongs to the set {4,5,6,7,8}, the HARQ process index of the first transport block indicated by the first information takes a value of 0; alternatively, the first and second electrodes may be,

when the control information schedules 2 transport blocks, the first information indicates the HARQ process index of a first transport block in a value set {0,2,4,6}, when the control information schedules 4 transport blocks, the first information indicates the HARQ process index of the first transport block in the value set {0,4}, and when the number of the transport blocks scheduled by the control information belongs to the set {3,5,6,7,8}, the HARQ process index of the first transport block indicated by the first information takes a value of 0.

As can be seen from the foregoing description of the embodiment, in order to enable the first communication device to obtain the number of transmission blocks determined by the second communication device, the second communication device may generate a first message, and send the first message to the first communication device, so that the first communication device can obtain the number of transmission blocks determined by the second communication device according to the received first message. In order to save the indication overhead of the control information, the first information generated by the second communication device in the embodiment of the present application may be used to indicate that the control information is used for scheduling of a single transport block or for the first scheduling. In the embodiment of the application, the HARQ process indexes corresponding to the transmission blocks of the downlink information scheduling can be limited, so that the bit overhead of the control information can be optimized, and the transmission performance of the control information is improved.

It should be noted that, because the contents of information interaction, execution process, and the like between the modules/units of the apparatus are based on the same concept as the method embodiment of the present application, the technical effect brought by the contents is the same as the method embodiment of the present application, and specific contents may refer to the description in the foregoing method embodiment of the present application, and are not described herein again.

The embodiment of the present application further provides a computer storage medium, where the computer storage medium stores a program, and the program executes some or all of the steps described in the above method embodiments.

As shown in fig. 7, which is a schematic structural diagram of another device in the embodiment of the present application, the device is a first communication device, and the first communication device may include: a processor 71 (e.g., a CPU), a memory 72, a transmitter 74, and a receiver 73; the transmitter 74 and the receiver 73 are coupled to the processor 71, and the processor 71 controls the transmitting action of the transmitter 74 and the receiving action of the receiver 73. The memory 72 may comprise a high-speed RAM memory, and may also include a non-volatile memory NVM, such as at least one disk memory, in which various instructions may be stored for performing various processing functions and implementing the method steps of the embodiments of the present application. Optionally, the first communication device related to the embodiment of the present application may further include: one or more of a power supply 75, a communication bus 76, and a communication port 77. The receiver 73 and the transmitter 74 may be integrated in the transceiver of the first communication device, or may be separate transmitting and receiving antennas of the first communication device. The communication bus 76 is used to enable communication connections between the elements. The communication port 77 is used for connection communication between the first communication device and other peripherals.

In the embodiment of the present application, the memory 72 is used for storing computer executable program codes, and the program codes include instructions; when the processor 71 executes the instructions, the instructions cause the processor 71 to execute the processing action of the first communication device in the foregoing method embodiment, and cause the transmitter 74 to execute the transmitting action of the first communication device in the foregoing method embodiment, which have similar implementation principles and technical effects, and are not described herein again.

As shown in fig. 8, which is a schematic structural diagram of another device in the embodiment of the present application, the device is a second communication device, and the second communication device may include: a processor (e.g., CPU)81, a memory 82, a receiver 83, and a transmitter 84; the receiver 83 and the transmitter 84 are coupled to the processor 81, and the processor 81 controls the receiving action of the receiver 83 and the transmitting action of the transmitter 84. The memory 82 may comprise a high-speed RAM memory, and may also include a non-volatile memory NVM, such as at least one disk memory, in which various instructions may be stored for performing various processing functions and implementing the method steps of the embodiments of the present application. Optionally, the second communication device according to the embodiment of the present application may further include: one or more of a power supply 85, a communication bus 86, and a communication port 87. The receiver 83 and the transmitter 84 may be integrated in the transceiver of the second communication device, or may be separate transmitting and receiving antennas on the second communication device. The communication bus 86 is used to enable communication connections between the elements. The communication port 87 is used for implementing connection communication between the second network device and other peripherals.

In another possible design, when the communication device is a chip in a terminal device or a network device, the chip includes: a processing unit, which may be for example a processor, and a communication unit, which may be for example an input/output interface, a pin or a circuit, etc. The processing unit may execute computer-executable instructions stored by the storage unit to cause a chip within the terminal to perform the wireless communication method of any one of the above first aspects. Optionally, the storage unit is a storage unit in the chip, such as a register, a cache, and the like, and the storage unit may also be a storage unit located outside the chip in the terminal, such as a read-only memory (ROM) or another type of static storage device that can store static information and instructions, a Random Access Memory (RAM), and the like.

The processor mentioned in any of the above may be a general-purpose Central Processing Unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling execution of a program of the wireless communication method according to the first aspect.

It should be noted that the above-described embodiments of the apparatus are merely schematic, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. In addition, in the drawings of the embodiments of the apparatus provided in the present application, the connection relationship between the modules indicates that there is a communication connection therebetween, and may be implemented as one or more communication buses or signal lines. One of ordinary skill in the art can understand and implement it without inventive effort.

Through the above description of the embodiments, those skilled in the art will clearly understand that the present application can be implemented by software plus necessary general-purpose hardware, and certainly can also be implemented by special-purpose hardware including special-purpose integrated circuits, special-purpose CPUs, special-purpose memories, special-purpose components and the like. Generally, functions performed by computer programs can be easily implemented by corresponding hardware, and specific hardware structures for implementing the same functions may be various, such as analog circuits, digital circuits, or dedicated circuits. However, for the present application, the implementation of a software program is more preferable. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a readable storage medium, such as a floppy disk, a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk of a computer, and includes instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods described in the embodiments of the present application.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product.

The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that a computer can store or a data storage device, such as a server, a data center, etc., that is integrated with one or more available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

Claims

A method of data transmission, comprising:

the method comprises the steps that first communication equipment receives first information sent by second communication equipment;

wherein the first information comprises X bits, and X is a positive integer;

at least one bit state in the bit states corresponding to the X bits can be used to indicate that the control information sent by the second communication device is used for scheduling a single transport block;

at least one bit state in the bit states corresponding to the X bits can be used to indicate that the control information is used for first scheduling, where the first scheduling refers to that the control information can schedule multiple transport blocks, and all the transport blocks that the control information can schedule have newly transmitted transport blocks and retransmitted transport blocks;

the first communication equipment determines the number of transmission blocks scheduled by the control information according to the bit state of the first information and determines the size of the transmission blocks scheduled by the control information according to the control information;

and the first communication equipment receives the data sent by the second communication equipment according to the determined number of the transmission blocks and the size of the transmission blocks, or the first communication equipment sends the data to the second communication equipment according to the determined number of the transmission blocks and the size of the transmission blocks.
The method of claim 1, further comprising:

the first communication equipment receives a high-level signaling sent by the second communication equipment, wherein the high-level signaling comprises the first information; alternatively, the first and second electrodes may be,

and the first communication equipment receives control information sent by the second communication equipment, wherein the control information comprises the first information.
A method of data transmission, comprising:

the second communication equipment determines the number of transmission blocks scheduled by control information, and determines the size of the transmission blocks scheduled by the control information;

the second communication equipment generates first information and sends the first information to the first communication equipment, wherein the bit state of the first information indicates the number of the transmission blocks scheduled by the control information, and the bit state of the first information indicates the number of the transmission blocks scheduled by the control information;

wherein the first information comprises X bits, and X is a positive integer;

at least one bit state in the bit states corresponding to the X bits can be used to indicate that the control information sent by the second communication device is used for scheduling a single transport block;

at least one bit state in the bit states corresponding to the X bits can be used to indicate that the control information is used for first scheduling, where the first scheduling refers to that the control information can schedule multiple transport blocks, and all the transport blocks that the control information can schedule have newly transmitted transport blocks and retransmitted transport blocks;

and the second communication equipment receives the data sent by the first communication equipment according to the determined number of the transmission blocks and the size of the transmission blocks, or the second communication equipment sends the data to the first communication equipment according to the determined number of the transmission blocks and the size of the transmission blocks.
The method of claim 3, further comprising:

the second communication device sends a high-level signaling to the first communication device, wherein the high-level signaling comprises the first information; alternatively, the first and second electrodes may be,

and the second communication equipment sends control information to the first communication equipment, wherein the control information comprises the first information.
A communication device, specifically a first communication device, the first communication device comprising:

the receiving module is used for receiving first information sent by second communication equipment;

wherein the first information comprises X bits, and X is a positive integer;

at least one bit state in the bit states corresponding to the X bits can be used to indicate that the control information sent by the second communication device is used for scheduling a single transport block;

at least one bit state in the bit states corresponding to the X bits can be used to indicate that the control information is used for first scheduling, where the first scheduling refers to that the control information can schedule multiple transport blocks, and all the transport blocks that the control information can schedule have newly transmitted transport blocks and retransmitted transport blocks;

the processing module is used for determining the number of the transmission blocks scheduled by the control information according to the bit state of the first information and determining the size of the transmission blocks scheduled by the control information according to the control information;

the receiving module is further configured to receive data sent by the second communication device according to the determined number of the transmission blocks and the size of the transmission blocks, or the sending module is configured to send data to the second communication device according to the determined number of the transmission blocks and the size of the transmission blocks.
The communications device according to claim 5, wherein the receiving module is configured to receive higher layer signaling sent by the second communications device, where the higher layer signaling includes the first information; or, the apparatus is configured to receive control information sent by the second communication device, where the control information includes the first information.
A communication device, wherein the communication device is specifically a second communication device, and the second communication device includes:

the processing module is used for determining the number of the transmission blocks scheduled by the control information, and the second communication equipment determines the size of the transmission blocks scheduled by the control information;

the processing module is used for generating first information;

a sending module, configured to send first information to a first communication device, where a bit state of the first information indicates a number of transport blocks scheduled by the control information;

wherein the first information comprises X bits, and X is a positive integer;

at least one bit state in the bit states corresponding to the X bits can be used to indicate that the control information sent by the second communication device is used for scheduling a single transport block;

at least one bit state in the bit states corresponding to the X bits can be used to indicate that the control information is used for first scheduling, where the first scheduling refers to that the control information can schedule multiple transport blocks, and all the transport blocks that the control information can schedule have newly transmitted transport blocks and retransmitted transport blocks;

and a receiving module, configured to receive the data sent by the first communication device according to the determined number of the transmission blocks and the size of the transmission blocks, or the sending module is further configured to send the data to the first communication device according to the determined number of the transmission blocks and the size of the transmission blocks.
The communications device of claim 7, wherein the sending module is configured to send higher layer signaling to a first communications device, the higher layer signaling including the first information; or sending control information to the first communication device, wherein the control information comprises the first information.
The method or communication device according to any one of claims 1 to 8, wherein at least one bit state of the bit states corresponding to the X bits is capable of indicating that the control information is for scheduling of multiple transport blocks, and the multiple transport blocks are all newly transmitted transport blocks; and/or the presence of a gas in the gas,

at least one bit state in the bit states corresponding to the X bits can be used to indicate that the control information is used for scheduling of multiple transport blocks, and the multiple transport blocks are all retransmitted transport blocks.
The method or communication device according to any of claims 1 to 8, wherein at least one of the bit states corresponding to the X bits can be used to indicate that the control information is used for the second scheduling; or, a high-level signaling or the control information indicates that the control information is also used for second scheduling, where the high-level signaling is a signaling sent by the second communication device to the first communication device;

wherein the second scheduling means that all transport blocks scheduled by the control information can only be all newly transmitted transport blocks or all retransmitted transport blocks.
The method or communications device of claim 10, wherein the control information includes a first field, the first field including one bit or more bits;

when the bit state of the first field belongs to a first state set, the first information indicates that the control information is used for the first scheduling;

when the bit state of the first field belongs to a second state set, the first information indicates that the control information is used for the second scheduling;

the first set of states includes one or more bit states of the first field and the second set of states includes one or more bit states of the first field.
The method or the communication apparatus according to any of claims 1 to 11, wherein at least one bit state of the bit states corresponding to the X bits can be used to indicate that the control information is used for a third scheduling, where the third scheduling indicates that the control information can schedule a plurality of transport blocks, and all the transport blocks that can be scheduled by the control information are newly transmitted transport blocks; and/or the presence of a gas in the gas,

at least one bit state of the bit states corresponding to the X bits can be used to indicate that the control information is used for fourth scheduling, where the fourth scheduling refers to that the control information can schedule multiple transport blocks, and all the transport blocks that the control information can schedule are retransmitted transport blocks.
The method or communication device according to any of claims 1 to 11, wherein the HARQ process index of the first transport block scheduled by the control information is 0, or the HARQ process index of the first transport block is a preset value, or the HARQ process index of the first transport block is a fixed value; alternatively, the first and second electrodes may be,

when the number of the transport blocks scheduled by the control information is greater than M, the HARQ process index of the first transport block in the multiple transport blocks scheduled by the control information is 0, or a preset value, or a fixed value, where M is a preset or configured positive integer; and/or the presence of a gas in the gas,

when the number of the transport blocks scheduled by the control information is less than L, the control information indicates the HARQ process index of the first transport block in the scheduled transport blocks in a HARQ process index set, where the HARQ process index set at least includes 2 HARQ process indexes, and L is a preset or configured positive integer.
The method or communication device according to claim 13, wherein the M-1, the M-2, the M-3, the M-4, the M-5, or the M-6; alternatively, the first and second electrodes may be,

said L-2, or said L-3, or said L-4, or said L-5, or said L-6.
The method or the communication apparatus according to any one of claims 1 to 11, wherein when the number of transport blocks scheduled by the control information belongs to a set {2,3,4,5,6,7,8}, a HARQ process index of a first transport block indicated by the first information takes a value of 0; alternatively, the first and second electrodes may be,

when the number of transport blocks scheduled by the control information belongs to a set {3,4,5,6,7,8}, the HARQ process index of the first transport block indicated by the first information takes a value of 0; alternatively, the first and second electrodes may be,

when the number of transport blocks scheduled by the control information belongs to a set {4,5,6,7,8}, the HARQ process index value of the first transport block indicated by the first information is 0.
The method or the communication device according to any one of claims 1 to 15, wherein when the number of transport blocks scheduled by the control information is greater than N, the first communication device supports acknowledgement feedback for the received transport blocks in a bundled or multiplexed manner, but does not support individual acknowledgement feedback for each of the received transport blocks, where N is a preset or configured positive integer; and/or the presence of a gas in the gas,

and when the number of the transport blocks scheduled by the control information is less than H, the first communication device supports individual response feedback on each transport block in the received multiple transport blocks, wherein H is a preset or configured positive integer.
The method or communications device of any of claims 1 to 16, wherein when said control information is used for a first schedule,

determining HARQ process indexes of other transport blocks except the first transport block in the plurality of transport blocks according to the HARQ process index of the first transport block; and/or the presence of a gas in the gas,

each transport block in the plurality of transport blocks corresponds to one HARQ process index, and the plurality of HARQ process indexes corresponding to the plurality of transport blocks are consecutive.
The method or communication device of any of claims 1 to 17,

when the control information schedules 1 transport block, the first information indicates the HARQ process index of the transport block in a value set {0,1}, and when the number of the transport blocks scheduled by the control information belongs to a set {2,3,4,5,6,7,8}, the HARQ process index of the first transport block indicated by the first information is 0; alternatively, the first and second electrodes may be,

when the control information schedules 1 transport block, the first information indicates the HARQ process index of the transport block in a value set {0,1}, and when the number of the transport blocks scheduled by the control information belongs to a set {2,3,4}, the HARQ process index of the first transport block indicated by the first information is taken as 0.
The method or communication device of any of claims 1 to 17,

when the control information schedules 1 transport block, the first information indicates the HARQ process index of the transport block in a value set {0,1,2,3,4,5,6,7}, and when the number of the transport blocks scheduled by the control information belongs to the set {2,3,4,5,6,7,8}, the HARQ process index of the first transport block indicated by the first information is 0; alternatively, the first and second electrodes may be,

when the control information schedules 1 transport block, the first information indicates the HARQ process index of the transport block in a value set {0,1,2,3,4,5,6,7}, when the control information schedules 2 transport blocks, the first information indicates the HARQ process index of a first transport block in the value set {0,2}, and when the number of the transport blocks scheduled by the control information belongs to the set {3,4,5,6,7,8}, the HARQ process index of the first transport block indicated by the first information is taken as 0; alternatively, the first and second electrodes may be,

when the control information schedules 1 transport block, the first information indicates the HARQ process index of the transport block in a value set {0,1}, and when the control information schedules 2 transport blocks, the first information indicates the HARQ process index of the transport block in a value set {0,2}, and when the number of the transport blocks scheduled by the control information belongs to a set {3,4}, the HARQ process index of the first transport block indicated by the first information takes a value of 0.
The method or communication device of any of claims 1 to 17,

when the control information schedules 2 transport blocks, the first information indicates the HARQ process index of a first transport block in a value set {0,2,4,6}, when the control information schedules 3 transport blocks, the first information indicates the HARQ process index of the first transport block in the value set {0,3,4}, and when the number of the transport blocks scheduled by the control information belongs to the set {4,5,6,7,8}, the HARQ process index of the first transport block indicated by the first information takes a value of 0; alternatively, the first and second electrodes may be,

when the control information schedules 2 transport blocks, the first information indicates the HARQ process index of a first transport block in a value set {0,2,4,6}, when the control information schedules 4 transport blocks, the first information indicates the HARQ process index of the first transport block in the value set {0,4}, and when the number of the transport blocks scheduled by the control information belongs to the set {3,5,6,7,8}, the HARQ process index of the first transport block indicated by the first information takes a value of 0.