CN120358603A

CN120358603A - Transmission method, transmission device, first equipment and storage medium

Info

Publication number: CN120358603A
Application number: CN202410084859.9A
Authority: CN
Inventors: 李娜
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2024-01-19
Filing date: 2024-01-19
Publication date: 2025-07-22
Also published as: WO2025153075A1

Abstract

The application discloses a transmission method, a device, a first device and a storage medium, which belong to the technical field of communication, wherein the method comprises the steps that the first device receives or transmits a first channel based on first information, at least one TB is carried on the first channel, the first device comprises a terminal or network side device, and the first information is used for configuring or activating or scheduling the transmission of the first channel; wherein the transmission of all or part of the at least one TB is such that one of the all or part of the TB is scheduled for transmission on a plurality of frequency domain units or groups of frequency domain units, one TB comprising at least one TB part, one TB part being transmitted on one frequency domain unit or group of frequency domain units.

Description

Transmission method, transmission device, first equipment and storage medium

Technical Field

The application belongs to the technical field of communication, and particularly relates to a transmission method, a transmission device, first equipment and a storage medium.

Background

Currently, for larger traffic of data packets, it may be necessary to split a data packet into multiple Transport Blocks (TBs) for transmission, and when the data decoding of a single TB fails, the entire TB needs to be retransmitted. In order to avoid retransmitting Code Blocks (CBs) that have been successfully transmitted, one TB may be divided into a plurality of CB groups (CBGs) and retransmitted according to the CBG level, but since the CBG division criteria is to make each CBG have the same or similar size as much as possible, and the number of resources allocated on different frequency domain units may be different, one CBG may be scheduled to be transmitted on a plurality of frequency domain units, and the channel quality of each of the plurality of frequency domain units may be different again, which may cause the CBG to fail to receive, thereby bringing about a problem of large retransmission overhead, so how to avoid unnecessary retransmission overhead is a problem to be solved in the present application.

Disclosure of Invention

The embodiment of the application provides a transmission method, a transmission device, first equipment and a storage medium, which can avoid unnecessary retransmission overhead.

In a first aspect, a transmission method is provided, the method includes that a first device receives or sends a first channel based on first information, the first channel bears at least one TB, the first device comprises a terminal or network side device, the first information is used for configuring or activating or scheduling first channel transmission, wherein transmission of all or part of the at least one TB meets that one TB in all or part of the TB is scheduled to be transmitted on a plurality of frequency domain units or frequency domain unit groups, one TB comprises at least one TB part, and one TB part is transmitted on one frequency domain unit or frequency domain unit group.

In a second aspect, a transmission apparatus is provided that includes a processing module. And the processing module is used for receiving or sending a first channel, wherein the first channel carries at least one TB, the first device comprises a terminal or network side device, the first information is used for configuring or activating or scheduling the transmission of the first channel, wherein the transmission of all or part of the at least one TB is satisfied that one TB in all or part of the TB is scheduled to be transmitted on a plurality of frequency domain units or frequency domain unit groups, the one TB comprises at least one TB part, and the one TB part is transmitted on one frequency domain unit or frequency domain unit group.

In a third aspect, there is provided a first device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the first aspect.

In a fourth aspect, a first device is provided, including a processor and a communication interface, where the communication interface is configured to receive or send a first channel based on first information, where the first channel carries at least one TB, the first device includes a terminal or a network side device, and the first information is configured to activate or schedule transmission of the first channel, where transmission of all or part of the at least one TB satisfies that one TB of all or part of the TBs is scheduled to be transmitted on a plurality of frequency domain units or a frequency domain unit group, and one TB includes at least one TB portion, and one TB portion is transmitted on one frequency domain unit or frequency domain unit group.

In a fifth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor realizes the steps of the method according to the first aspect.

In a sixth aspect, there is provided a chip comprising a processor and a communication interface coupled to the processor for running a program or instructions to implement the method of the first aspect.

In a seventh aspect, a computer program/program product is provided, the computer program/program product being stored in a storage medium, the computer program/program product being executed by at least one processor to implement the steps of the transmission method according to the first aspect.

In the embodiment of the application, a first device receives or transmits a first channel based on first information, wherein the first channel carries at least one TB, the first device comprises a terminal or network side device, the first information is used for configuring or activating or scheduling first channel transmission, and the transmission of all or part of the at least one TB is satisfied that one TB in all or part of the TB is scheduled to be transmitted on a plurality of frequency domain units or frequency domain unit groups, the one TB comprises at least one TB part, and the one TB part is transmitted on one frequency domain unit or frequency domain unit group. In this scheme, when the first device receives or transmits the first channel carrying at least one TB based on the first information, all or part of the at least one TB is scheduled to be transmitted on a plurality of frequency domain units or frequency domain unit groups, and any one of the at least one TB part included in the one TB is transmitted on one frequency domain unit or frequency domain unit group, so that when any one TB part is transmitted on a plurality of frequency domain units or frequency domain unit groups, due to different channel quality of each frequency domain unit or frequency domain unit group, any one TB part fails to be received, and thus the whole TB or any one TB part needs to be retransmitted, thus avoiding unnecessary retransmission overhead.

Drawings

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

FIG. 2 is a schematic diagram of an example of an activation bandwidth provided by an embodiment of the present application;

fig. 3 is a schematic flow chart of a transmission method according to an embodiment of the present application;

FIG. 4 is a second flow chart of a transmission method according to the embodiment of the application;

FIG. 5 is a third flow chart of a transmission method according to the embodiment of the application;

FIG. 6 is a flowchart of a transmission method according to an embodiment of the present application;

fig. 7 is a flowchart of a transmission method according to an embodiment of the present application;

Fig. 8 is a schematic structural diagram of a transmission device according to an embodiment of the present application;

FIG. 9 is a second schematic diagram of a transmission device according to an embodiment of the present application;

Fig. 10 is a schematic hardware structure of a communication device according to an embodiment of the present application;

fig. 11 is a schematic diagram of a hardware structure of a terminal according to an embodiment of the present application;

fig. 12 is a schematic hardware structure of a network side device according to an embodiment of the present application.

Detailed Description

The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the application, fall within the scope of protection of the application.

The terms "first," "second," and the like, herein, are used for distinguishing between similar objects 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 such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the "first" and "second" distinguishing between objects generally are not limited in number to the extent that the first object may, for example, be one or more. Furthermore, the "or" in the present application means at least one of the connected objects. For example, "A or B" encompasses three schemes, namely scheme one including A and excluding B, scheme two including B and excluding A, scheme three including both A and B. The character "/" generally indicates that the context-dependent object is an "or" relationship.

The term "indication" according to the application may be either a direct indication (or an explicit indication) or an indirect indication (or an implicit indication). The direct indication may be understood that the sender explicitly informs the specific information of the receiver, the operation to be executed, the request result, and the like in the sent indication, and the indirect indication may be understood that the receiver determines the corresponding information according to the indication sent by the sender, or determines the operation to be executed, the request result, and the like according to the determination result.

The terms "at least one," "at least one," and the like of the present application mean that they encompass any one, any two, or a combination of two or more of the objects. For example, at least one of a, b, c (item) may represent "a", "b", "c", "a and b", "a and c", "b and c" and "a, b and c", wherein a, b, c may be single or plural. Similarly, the term "at least two" means two or more, and the meaning of the expression is similar to the term "at least one".

It should be noted that the techniques described in the embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single-carrier frequency division multiple access (Single-carrier Frequency-Division Multiple Access, SC-FDMA), or other systems. The terms "system" and "network" in embodiments of the application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New Radio (NR) system for exemplary purposes and NR terminology is used in much of the following description, but the techniques may also be applied to systems other than NR systems, such as the 6 th Generation (6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may be a Mobile phone, a tablet Computer (Tablet Personal Computer), a Laptop (Laptop Computer), a notebook (Personal DIGITAL ASSISTANT, PDA), a palm Computer, a netbook, an Ultra-Mobile Personal Computer (Ultra-Mobile Personal Computer, UMPC), a Mobile internet device (Mobile INTERNET DEVICE, MID), a Personal Digital Assistant (PDA), augmented Reality (Augmented Reality, AR), virtual Reality (VR) devices, robots, wearable devices (Wearable Device), aircraft (FLIGHT VEHICLE), in-vehicle devices (Vehicle User Equipment, VUE), on-board equipment, pedestrian terminals (PEDESTRIAN USER EQUIPMENT, PUE), smart home (home appliances having wireless communication function, such as refrigerator, television, Washing machine or furniture, etc.), game machine, personal computer (Personal Computer, PC), teller machine or self-service machine, etc. The wearable device comprises an intelligent watch, an intelligent bracelet, an intelligent earphone, intelligent glasses, intelligent jewelry (intelligent bracelets, intelligent rings, intelligent necklaces, intelligent anklets, intelligent footchains and the like), an intelligent wristband, intelligent clothing and the like. The in-vehicle apparatus may also be referred to as an in-vehicle terminal, an in-vehicle controller, an in-vehicle module, an in-vehicle component, an in-vehicle chip, an in-vehicle unit, or the like. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network-side device 12 may include an access network device or core network device, where the access network device may also be referred to as a radio access network (Radio Access Network, RAN) device, a radio access network function, or a radio access network element. the Access network device may include a base station, a wireless local area network (Wireless Local Area Network, WLAN) Access Point (AS), or a wireless fidelity (WIRELESS FIDELITY, WIFI) node, etc. Wherein the base station may be referred to as Node B (NB), evolved Node B (eNB), next generation Node B (the next generation Node B, gNB), new air interface Node B (NR Node B), access point, relay station (Relay Base Station, RBS), serving base station (Serving Base Station, SBS), base transceiver station (Base Transceiver Station, BTS), A radio base station, a radio transceiver, a Basic service set (Basic SERVICE SET, BSS), an Extended service set (Extended SERVICE SET, ESS), a Home Node B (HNB), a home evolved Node B (home evolved Node B), a transmission and reception point (Transmission Reception Point, TRP), or some other suitable terminology in the art, so long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary, and it should be noted that in the embodiment of the present application, only a base station in an NR system is described by way of example, and the specific type of the base station is not limited.

Some concepts and/or terms related to the transmission method provided in the embodiments of the present application are explained below.

1. Mobile Communication systems need to accommodate more diverse scenarios and service requirements, e.g., the main scenarios of Generation 5 (5G) include enhanced mobile broadband (Enhanced Mobile Broadband, eMBB), ultra-high reliability and Ultra-Low latency Communication (Ultra-Low-Latency Communications, URLLC), large-scale machine type Communication (MASSIVE MACHINETYPE Communication, mMTC), which place high reliability, low latency, large bandwidth, wide coverage, etc. requirements on the system. The transmission bandwidth required by the terminal is different for different application scenarios. In NR, the network side device may schedule the terminal to transmit on different bandwidth portions according to the requirements.

In NR, on one serving cell, a network configures one or more Bandwidth parts (BWP) for data transmission for a terminal, and configures a maximum of 4 BWP. BWP is a continuous segment of resources in the frequency domain. At a certain time, only one BWP is in an active state, and the network side device implements dynamic bandwidth change by activating different BWPs. As shown in fig. 2. The method comprises the steps of enabling a terminal to have large traffic volume, enabling the terminal to be activated with a large bandwidth (BWP 1) at a first moment, enabling the terminal to have small traffic volume, enabling the terminal to be activated with a small bandwidth (BWP 2) at a second moment, and meeting basic communication requirements, and enabling a system to find out that the BWP1 has wide frequency selective fading or that resources in the frequency range of the BWP2 are short, so that network side equipment indicates the terminal to activate a new bandwidth (BWP 3).

Each BWP may correspond to different configuration parameters including subcarrier spacing, location and bandwidth of the BWP, cyclic Prefix (CP), etc.

The Sub-3GHz spectrum has the advantages of small penetration loss and the like, and plays an important role in cellular network deployment due to the good coverage area. On the other hand, sub-3GHz spectrum is allocated to the international mobile communication system (International Mobile Telecommunications, IMT) in a fragmented manner, compared to the C band, and the bandwidth of each spectrum block is relatively narrow due to competition between mobile operators. On the other hand, almost all operators worldwide have multiple Sub-3GHz bands (e.g., 700MHz, 800MHz, 900MHz, 1.4GHz, 1.8GHz, 2.1GHz, 2.3GHz or 2.6GHz bands). All operators may benefit if these discontinuous spectrum can be effectively aggregated to form a "single" carrier with a substantial bandwidth.

2. NR CBG-based hybrid automatic repeat request acknowledgement (Hybrid Automatic Repeat request-ACKnowledgement, HARQ-ACK) feedback and retransmission

Conventional data scheduling schedules in units of TBs, one Physical data channel (Physical downlink shared channel (Physical Downlink SHARED CHANNEL, PDSCH) or Physical Uplink shared channel (Physical Uplink SHARED CHANNEL, PUSCH)) may carry one or more TBs, for example, regarding the number of layers supported by PDSCH/PUSCH, one PDSCH/PUSCH may carry 2 TBs at most, and transmission feedback and retransmission of data are in units of TBs, for example, one TB of PDSCH feeds back 1-bit HARQ-ACK or 2 TBs of one PDSCH feeds back 1-bit HARQ-ACK in the form of bundle. The terminal feeds back an ACK when a certain TB or PDSCH is successfully decoded, otherwise the terminal feeds back a negative acknowledgement (Negative Acknowledgement, NACK). And after receiving the NACK, the network side equipment retransmits the whole TB.

When the data size of a single transport Block TB is large, in order to facilitate encoding and decoding, based on the encoding rule in LTE/NR, it is necessary to cut the data of this TB to form a plurality of Code Blocks (CBs), and then encode each CB separately. When the number of CBs split by a single transport block is large, the data of each CB is mapped to different time-frequency resources, and the channel fading and interference conditions experienced by different CBs in the transmission process may be different, so that some CB decoding is successful, some CB decoding fails, and the whole transport block needs to continue to perform HARQ retransmission. In this case, in order to avoid retransmitting CBs that have been successfully transmitted, CBG-based HARQ-ACK feedback and retransmission are introduced in NR, that is, all CBs corresponding to a single transport block are divided into a plurality of CB groups based on a predefined rule, and a/N of each CBG is fed back according to a reception situation of each CBG, and the network side device performs retransmission scheduling according to CBG a/N fed back by the terminal. In this way, the network side equipment only needs to retransmit the CBG with the terminal receiving error, thereby reducing the resources required by retransmission and simultaneously reducing the processing time delay of the terminal when receiving retransmission data for combination.

The maximum number of CBGs each TB contains is configured by higher layer radio resource control protocol (Radio Resource Control, RRC) signaling. After the terminal configures the CBG transmission mode, the terminal determines the number of CBGs contained in each TB according to a predefined rule, specifically as follows:

The terminal determines the number M of CBGs contained in each TB, m=min (N, C), where N is the maximum number of CBGs contained in each TB configured by the network side device, and C is the number of CBs contained in the transmitted TB.

Definition M ₁ = mod (C, M),and

If M ₁ >0, for CBG M, m=0, 1,..m ₁ -1 consists of CB with index m·k ₁+k,k＝0,1,...,K₁ -1. For CBG M, m=m ₁,M₁ +1,..m-1 consists of CB with CB index cM ₁·K₁+(m-M₁)·K₂+k,k＝0,1,...,K₂ -1.

When the terminal configures the CBG transmission mode, the terminal determines the number of a/N bits required for feedback to each TB according to the configured maximum number of CBGs, i.e., the a/N feedback of each TB is equal to the configured maximum number of CBGs.

If the terminal does not configure the CBG transmission mode, the A/N bit number fed back by the terminal is the scheduled TB number, and the maximum is 2bits.

If the terminal configures the CBG transmission mode, for the type 1HARQ-ACK codebook or the type 3 codebook, the terminal determines the type of a/N feedback according to the received downlink control information (Downlink Control Information, DCI) format of the scheduled downlink data, where the feedback a/N bit number=the configured maximum CBG number M is the scheduled TB number N. When the DCI format received by the terminal is fallback DCI, the A/N type fed back by the terminal is TB level A/N. Specifically, for each TB, the terminal feeds back M bits, wherein each bit indicates the A/N of the TB, and when the DCI format received by the terminal is common DCI, the A/N type fed back by the terminal is CBG level A/N. Specifically, for each TB, the terminal feeds back M bits, where each bit corresponds to the a/N of each CBG.

For the type 2 codebook, the terminal determines the type of A/N feedback according to the received DCI format of the downlink data, for the downlink data scheduled by the fallback DCI, 1 bit is fed back according to the TB level, and for the downlink data scheduled by the non-fallback DCI, the fed back A/N bit number=the configured maximum CBG number M is the TB number N scheduled. And the terminal respectively constructs HARQ-ACK sub-codebooks of TB level feedback and CBG level feedback, and concatenates the two codebooks.

3. Currently, the carrier of each cell is a continuous frequency domain resource, and uplink and downlink transmission is performed in a BWP with continuous frequency domain resources. For a large amount of scattered spectrum of Sub-3GHz spectrum, carrier aggregation (Carrier Aggregation, CA) is a traditional solution for carrier and terminal aggregated spectrum, i.e. different contiguous spectrum is used as one carrier, respectively, if the scattered spectrum is to be used by technology. However, existing CA mechanisms treat each carrier as an independent serving cell and assume that each carrier is deployed independently. The independent management of each carrier may incur unnecessary overhead and efficiency loss, such as independent control signaling, common signaling, etc. This also introduces unnecessary procedures and delays such as synchronization, SCell (secondary cell) addition or release or activation or measurement or movement, etc. Furthermore, the CA mechanism is only advantageous for terminals in connected mode rrc_connected, i.e. completing RRC connection with the network, and not for terminals in idle mode/inactive mode rrc_idle/active, e.g. initial access/small data transfer (SMALL DATA Transmission, SDT).

Therefore, the introduction of flexible cells can flexibly and efficiently utilize adjacent discontinuous spectrum resources from the angles of L1/L2/L3 signaling, flow and cell management. It is beneficial to terminals in both CONNECTED and IDLE states to improve user perceived data rate, power saving, system capacity and coverage. It also simplifies network management complexity and improves energy efficiency. Furthermore, these narrow bandwidth carriers have a limited amount of data that can be transmitted over a single carrier over time.

The transmission method provided by the embodiment of the application is described in detail below through some embodiments and application scenarios thereof with reference to the accompanying drawings.

When a packet of a service is large, if a single TB is limited to a single frequency band, one packet may need to be split into multiple TBs for transmission due to a limited amount of data that can be transmitted in a single frequency domain, which may cause a large TB header overhead or HARQ process overhead. The transmission of a single TB across multiple discontinuous carriers may support larger TB transmissions, thereby saving header overhead and HARQ process overhead due to TB partitioning. However, if the channel quality of a plurality of discontinuous carriers is different, the entire TB may not be correctly decoded due to a poor channel quality carrier, so that the entire TB needs to be retransmitted. In order to avoid retransmitting CBs that have been successfully transmitted, one TB may be divided into a plurality of CBGs, and transmission and feedback of the CBGs are adopted, wherein in the related art, one TB is divided into a plurality of CBGs, each CBG contains the same number of CBs or a difference of 1, and each CB contains the same or similar number of bits. In other words, the number of bits contained in each CBG is as equal as possible. However, the number of resources allocated on different frequency domain units may be different, so that one CBG may be scheduled for transmission on multiple frequency domain units, and the channel quality of each frequency domain unit may be different again, and thus the entire CBG may need to be retransmitted due to failure of one CBG reception caused by the individual frequency domain units. Therefore, the existing CBG transmission cannot solve the above problems. How to avoid unnecessary retransmission overhead is a problem to be solved by the present application.

In the embodiment of the present application, when the first device receives or transmits the first channel carrying at least one TB based on the first information, all or part of the at least one TB is scheduled to be transmitted on a plurality of frequency domain units or frequency domain unit groups, and any one of the at least one TB part included in the at least one TB is transmitted on one frequency domain unit or frequency domain unit group, so that when any one TB part is transmitted on a plurality of frequency domain units or frequency domain unit groups, the reception failure of any one TB part is avoided due to the different channel quality of each frequency domain unit or frequency domain unit group, and thus the situation that the whole TB or any one TB part needs to be retransmitted is avoided, and unnecessary retransmission overhead is avoided.

The embodiment of the application provides a transmission method, and fig. 3 shows a flowchart of the transmission method provided by the embodiment of the application. As shown in fig. 3, the transmission method provided in the embodiment of the present application may include the following step 201.

Step 201, the first device receives or transmits a first channel based on the first information.

In the embodiment of the present application, at least one TB is carried on the first channel, where the first device includes a terminal or a network side device, and the first information is used to configure, activate or schedule transmission of the first channel.

In the embodiment of the present application, transmission of all or part of the TBs in the at least one TB satisfies:

One of the total or partial TBs is scheduled for transmission on a plurality of frequency domain units or groups of frequency domain units, one TB including at least one TB portion, one of the at least one TB portion being transmitted on one frequency domain unit or group of frequency domain units.

In some embodiments of the present application, the frequency domain unit is a set of contiguous frequency domain resources, which may be band, carrier, subband, BWP, etc., each of which may be the same or different or not identical in size, and may be discontinuous between different frequency domain units. For example, a cell is composed of four frequency domain units, which are 3mhz,10mhz,5mhz in size, respectively. For a cell composed of a plurality of frequency domain units, the first device may receive or transmit a first channel in the cell based on the first information.

In some embodiments of the present application, in the case where the first device is a terminal, before the first device receives or transmits the first channel based on the first information, the first device may acquire the first information transmitted by the network side device, so as to receive or transmit the first channel based on the first information.

In some embodiments of the present application, the first information may include at least one of DCI and RRC.

In some embodiments of the present application, for PUSCH or PDSCH transmission, the first information may be DCI, for example, DCI format 0_0, 0_1 or 0_2 used for scheduling PUSCH transmission, or DCI format 1_0, 1-1 or 1_2 used for scheduling PDSCH transmission, where the first information is used for scheduling first channel transmission.

In some embodiments of the present application, for PUSCH transmission, the first information may be RRC, and the first information is used to configure first channel transmission. For example, the first channel configures the grant PUSCH for type 1, and the RRC information is used to configure the CG PUSCH.

In some embodiments of the present application, for PUSCH or PDSCH transmission, the first information may be RRC and DCI, and the first information is used to configure and activate the first channel transmission. For example, the first channel configures an authorized PUSCH or Semi-persistent scheduling (Semi-PERSISTENT SCHEDULING, SPS) PDSCH for type 2, RRC information is used to configure the CG PUSCH or SPS PDSCH, and the DCI is used to activate the CG PUSCH or SPS PDSCH.

In some embodiments of the present application, frequency domain units with the same or similar channel quality may be formed into a frequency domain unit group. The set of frequency domain units may also be referred to as a set of frequency domain units. The frequency domain unit group may include at least one frequency domain unit, and the frequency domain unit may be network side configuration or network side device indication or protocol predefining or terminal reporting, etc. The embodiment of the present application is not limited thereto.

In some embodiments of the present application, when one of the at least one TB is scheduled for transmission on multiple frequency domain units or groups of frequency domain units, the one TB may be divided into at least one TB section.

For example, when one TB is scheduled for transmission on N frequency domain units or groups of frequency domain units, the one TB is divided into M TB portions, wherein M, N is a positive integer.

In some embodiments of the present application, one of the at least one TB may be scheduled for transmission on one frequency domain unit or a frequency domain unit group, and the one TB includes one TB portion when the one TB is scheduled for transmission on one frequency domain unit or a frequency domain unit group, the one TB portion being identical to the one TB.

In some embodiments of the present application, one of the at least one TB portion is transmitted on one frequency domain unit or group of frequency domain units, i.e. one TB portion cannot be mapped on a different frequency domain unit or group of frequency domain units.

In some embodiments of the present application, at least one TB portion may be transmitted on the above-mentioned one frequency domain unit or group of frequency domain units, and optionally, each frequency domain unit or group of frequency domain units contains one TB portion, or the number of TB portions transmitted on one frequency domain unit is determined according to the number of resources allocated by the one TB on the one frequency domain unit, for example, if the number of PRBs allocated on the one frequency domain unit is more than a certain number, more than one TB portion may be transmitted on the one frequency domain unit, otherwise one TB portion is transmitted on the one frequency domain unit.

In some embodiments of the present application, the transmission may be an initial transmission or a retransmission. The embodiments of the present application are not limited in this regard.

In some embodiments of the present application, in the case that the first device is a terminal, the terminal may initially transmit at least one TB, optionally, the network side device feeds back the at least one TB, and the terminal determines whether to perform retransmission or how to perform retransmission according to feedback information of the network side device, for example, the terminal performs retransmission for a TB portion where corresponding feedback information indicated by the network side device is NACK. Or the terminal performs primary transmission or retransmission according to the scheduling of the network side equipment.

In some embodiments of the present application, in the case where the first device is a terminal, the terminal may receive at least one TB transmitted by the network side device and feed back the at least one TB, and optionally, the network side device retransmits at least one TB portion.

In some embodiments of the present application, in the case where the first device is a network side device, the network side device may initially transmit at least one TB, and the terminal may feed back the at least one TB, and optionally, the network side device may retransmit a TB portion in the at least one TB with reference to feedback information sent by the terminal. For example, the network side device retransmits the TB portion for which the terminal feeds back NACK.

In some embodiments of the present application, in the case where the first device is a network side device, the network side device may receive at least one TB transmitted by the terminal, and optionally, the network side device feeds back the at least one TB, and optionally, the terminal retransmits a TB portion for which corresponding feedback information indicated by the network side device is NACK.

The embodiment of the application provides a transmission method, wherein when a first device receives or transmits a first channel carrying at least one TB based on first information, one TB in all or part of the at least one TB is scheduled to be transmitted on a plurality of frequency domain units or frequency domain unit groups, and any TB part in at least one TB part included in one TB is transmitted on one frequency domain unit or frequency domain unit group, so that when any TB part is transmitted on a plurality of frequency domain units or frequency domain unit groups, the condition that any TB part fails to be received due to different channel quality of each frequency domain unit or frequency domain unit group, and the whole TB or any TB part needs to be retransmitted is avoided, and unnecessary retransmission expenditure is avoided.

In some embodiments of the application, one of the at least one TB portion includes any one of a portion bit of one TB, at least one CB of one TB, at least one CBG of one TB.

In some embodiments of the application, one of the at least one CBG comprises at least one CB.

In some embodiments of the application, the at least one TB satisfies at least one of:

Each of the at least one TB corresponds to one HARQ process;

different ones of the at least one TB correspond to different HARQ processes;

The HARQ process corresponding to each of the at least one TB is not exactly the same.

In some embodiments of the present application, the HARQ process corresponding to each of the at least one TB is not identical, which is understood to mean that a part of the at least one TB corresponds to the same HARQ process and each of the other TBs corresponds to a different HARQ process.

In some embodiments of the present application, all TBs in one TB group correspond to one HARQ process, and different TB groups correspond to different HARQ processes.

In some embodiments of the present application, one TB set may include at least two TBs of the at least one TB.

In some embodiments of the present application, one of the at least one TB is partitioned according to a first rule;

wherein the first rule includes at least one of rule 1 to rule 7:

Rule 1 dividing the TB including the cyclic redundancy check (Cyclic Redundancy Check, CRC);

it will be appreciated that the entire TB may be first CRC and then the CRC-added TB may be partitioned to obtain at least one TB portion.

Rule 2, dividing the TB not including CRC;

it will be appreciated that the TB may be partitioned to obtain at least one TB portion without CRC over the entire TB.

Rule 3, CB partitioning the TB including CRC;

it will be appreciated that the CRC may be performed on the TB first, and then the TB to which the CRC has been applied may be CB-partitioned.

In some embodiments of the present application, the above-mentioned dividing the TB including the CRC into CBs, where the divided CBs satisfy at least one of the following:

One or more CBs of the partitioned CBs are transmitted on one frequency domain unit or group of frequency domain units;

one of the divided CBs is transmitted on one frequency domain unit or a frequency domain unit group;

CBs on one frequency domain unit or group of frequency domain units form one or more CBGs;

One or more CBGs are transmitted over one frequency domain unit or group of frequency domain units;

One CBG is transmitted on one frequency domain unit or group of frequency domain units.

It is understood that one or more CBs may be transmitted on one frequency domain unit or group of frequency domain units, but one CB is transmitted on only one frequency domain unit or group of frequency domain units.

It is understood that one or more CBGs may be transmitted on one frequency domain unit or group of frequency domain units, but one CBG is transmitted on only one frequency domain unit or group of frequency domain units.

In some embodiments of the present application, when the number of CBs scheduled on one frequency domain unit exceeds the maximum number of CBs included in one CBG, all CBs transmitted on the one frequency domain unit may be divided into a plurality of CBGs, wherein the number of CBs included in each CBG may be determined by a predefined rule.

Rule 4 the partitioning of a TB is determined based on at least one of the number of frequency domain units or groups of frequency domain units to which a TB corresponds, the number of physical resource blocks (Physical Resource Block, PRBs) to which a TB is allocated on the corresponding frequency domain units or groups of frequency domain units, the number of symbols to which a TB is allocated on the corresponding frequency domain units or groups of frequency domain units, the number of available resources to which a TB is allocated on the corresponding frequency domain units or groups of frequency domain units, the modulation and coding strategy (Modulation and Coding Scheme, MCS) order to which a TB corresponds, the number of transport layers to which a TB corresponds in the corresponding frequency domain units or groups of frequency domain units;

In some embodiments of the present application, the number of available resources may include at least one of a number of PRBs, a number of symbols, and a number of Resource Elements (REs).

In some embodiments of the present application, the size of the TB portion on a certain frequency domain unit or group of frequency domain units, e.g. the number of bits or the number of bits comprised by one CB or the number of CBs comprised by one CBG, is related to the number of allocated PRBs on the certain frequency domain unit or group of frequency domain units, e.g. the larger the number of PRBs, the larger the TB portion on the frequency domain unit or group of frequency domain units.

In some embodiments of the present application, the number of TB portions on a certain frequency domain unit or group of frequency domain units is related to the number of allocated PRBs on the certain frequency domain unit or group of frequency domain units, e.g. the larger the number of PRBs, the more TB portions on a frequency domain unit or group of frequency domain units.

In some embodiments of the present application, the size of the TB portion on a certain frequency domain unit or group of frequency domain units is related to the number of symbols allocated on the certain frequency domain unit or group of frequency domain units, e.g. the larger the number of symbols, the larger the TB portion on the frequency domain unit or group of frequency domain units.

In some embodiments of the present application, the number of TB parts on a certain frequency domain unit or group of frequency domain units is related to the number of allocated symbols on the certain frequency domain unit or group of frequency domain units, e.g. the more symbols the more TB parts on a frequency domain unit or group of frequency domain units.

In some embodiments of the present application, the size of the TB portion on a certain frequency domain unit or group of frequency domain units is related to the amount of available resources allocated on the certain frequency domain unit or group of frequency domain units, e.g. the larger the amount of available resources, the larger the TB portion on the frequency domain unit or group of frequency domain units.

In some embodiments of the present application, the number of TB parts on a certain frequency domain unit or group of frequency domain units is related to the number of available resources allocated on the certain frequency domain unit or group of frequency domain units, e.g. the more the number of available resources the more TB parts on a frequency domain unit or group of frequency domain units.

In some embodiments of the present application, the size of the TB portion on a certain frequency domain unit or group of frequency domain units is related to the MCS level corresponding to the certain frequency domain unit or group of frequency domain units, e.g. the higher the MCS level, the larger the TB portion on the frequency domain unit or group of frequency domain units.

In some embodiments of the present application, the number of TB portions on a certain frequency domain unit or group of frequency domain units is related to the MCS level corresponding to the certain frequency domain unit or group of frequency domain units, e.g. the higher the MCS level, the more TB portions on the frequency domain unit or group of frequency domain units.

In some embodiments of the present application, the size of the TB portion on a certain frequency domain unit or frequency domain unit group is related to the number of transmission layers corresponding to the certain frequency domain unit or frequency domain unit group, for example, the more the number of transmission layers, the larger the TB portion on the frequency domain unit or frequency domain unit group.

In some embodiments of the present application, the number of TB portions on a certain frequency domain unit or group of frequency domain units is related to the number of transmission layers corresponding to the certain frequency domain unit or group of frequency domain units, e.g. the more the number of transmission layers, the more TB portions on the frequency domain unit or group of frequency domain units.

It will be appreciated that in some embodiments of the present application, the above-mentioned TB that does not include or includes CRC is divided into TB portions or CBs, and the divided TB portions or CBs satisfy at least one of the following:

The number of information bits contained in different TB portions may be the same, different, or not the same, for example, the size of the TB portion is related to at least one of the number of allocated PRBs, the number of symbols, the number of REs, the MCS level, the number of transmission layers, etc. in the frequency domain unit where the TB portion is located;

the number of information bits contained in different CBs may be the same or different or not the same, for example, the size of the CB is related to at least one of the number of allocated PRBs, the number of symbols, the number of REs, the MCS, the number of transmission layers, etc. on the frequency domain unit where the CB is located;

The number of CBs or the number of information bits contained in different CBGs may be the same or different or not the same, for example, the number of CBs contained in a CBG is related to at least one of the number of allocated PRBs, the number of symbols, the number of REs, the MCS level, the number of transmission layers, etc. on the frequency domain unit where the CBG is located.

Rule 5, dividing based on first indication information of the network side equipment, wherein the first indication information is used for indicating at least one of the size of the TB part on each frequency domain unit or frequency domain unit group in a plurality of frequency domain units or frequency domain unit groups corresponding to one TB;

for example, the first indication information is used for indicating the number of CBs and the size of CBs contained in each frequency domain unit.

Rule 6, number of multiple frequency domain units or frequency domain unit groups corresponding to one TB;

For example, when one TB corresponds to four frequency domain units or groups of frequency domain units, one TB may be divided into 4 TB sections. Each TB portion corresponds to one frequency domain unit, and the size of the TB portion on each frequency domain unit is related to at least one of the number of PRBs, the number of symbols, the number of REs, the MCS level, the number of transmission layers, etc. allocated to the TB on the corresponding frequency domain unit.

Rule 7 number of TB parts one TB contains.

In some embodiments of the present application, a TB may be partitioned based on the maximum number of TB portions it contains or the indicated number of TB portions.

In some embodiments of the present application, the size of at least one TB portion corresponding to one TB is related to the number of allocated PRBs on a frequency domain unit or a frequency domain unit group corresponding to the at least one TB portion, wherein the division of one TB is determined based on the number of allocated PRBs of one TB on a corresponding plurality of frequency domain units or frequency domain unit groups.

It may be appreciated that in case that the division of one TB is determined based on the number of PRBs allocated on the corresponding plurality of frequency domain units or frequency domain unit groups of one TB, the size of at least one TB portion corresponding to one TB is related to the number of PRBs allocated on the corresponding frequency domain unit or frequency domain unit group of at least one TB portion.

It can be appreciated that when one TB corresponds to a plurality of frequency domain units or groups of frequency domain units, the size of the partial TB portion corresponding to one TB is related to the number of allocated PRBs on the frequency domain unit or group of frequency domain units corresponding to the partial TB portion.

For example, one TB is divided into 3 TB parts, each TB part is transmitted on one frequency domain unit or frequency domain unit group, and after determining the size of the first 2 TB parts according to the number of allocated PRBs on two frequency domain units or frequency domain unit groups corresponding to the first 2 TB parts, the size of the last TB part may be obtained based on the difference between the size of one TB and the size of the first 2 TB parts.

In some embodiments of the present application, when one TB corresponds to a plurality of frequency domain units or frequency domain unit groups, the size of all TB parts corresponding to one TB is related to the number of allocated PRBs on the plurality of frequency domain units or frequency domain unit groups.

In this way, since the size of all TB parts corresponding to one TB may be related to the number of allocated PRBs on a plurality of frequency domain units or frequency domain unit groups corresponding to one TB, or the size of a part TB part corresponding to one TB is related to the number of allocated PRBs on a frequency domain unit or frequency domain unit group corresponding to a part TB part, flexibility in determining the size of a TB part corresponding to one TB is improved.

In some embodiments of the present application, the size of at least one TB portion corresponding to one TB is related to the number of symbols allocated on the frequency domain unit or group of frequency domain units corresponding to the at least one TB portion, wherein the partitioning of one TB is determined based on the number of symbols allocated on the corresponding plurality of frequency domain units or group of frequency domain units by one TB.

It is to be appreciated that in a case where the division of one TB is determined based on the number of symbols allocated on the corresponding plurality of frequency domain units or groups of frequency domain units for one TB, the size of at least one TB portion corresponding to one TB is related to the number of symbols allocated on the corresponding frequency domain unit or group of frequency domain units for at least one TB portion.

It will be appreciated that when one TB corresponds to a plurality of frequency domain units or groups of frequency domain units, the size of the portion TB portion corresponding to one TB is related to the number of symbols allocated on the frequency domain unit or group of frequency domain units corresponding to the portion TB portion.

For example, one TB is divided into 3 TB sections, each TB section is transmitted on one frequency domain unit or frequency domain unit group, and after determining the size of the first 2 TB sections according to the number of symbols allocated on the two frequency domain units or frequency domain unit groups corresponding to the first 2 TB sections, the size of the last TB section can be obtained based on the difference between the size of one TB and the size of the first 2 TB sections.

In some embodiments of the present application, when one TB corresponds to a plurality of frequency domain units or groups of frequency domain units, the size of all TB portions corresponding to one TB is related to the number of symbols allocated on the plurality of frequency domain units or groups of frequency domain units.

In this way, since the size of all TB parts corresponding to one TB may be related to the number of symbols allocated on a plurality of frequency domain units or a group of frequency domain units corresponding to one TB, or the size of a part TB part corresponding to one TB is related to the number of symbols allocated on a frequency domain unit or a group of frequency domain units corresponding to a part TB part, flexibility in determining the size of a TB part corresponding to one TB is improved.

In some embodiments of the present application, the size of at least one TB portion corresponding to one TB is related to the amount of available resources allocated on the frequency domain unit or group of frequency domain units corresponding to the at least one TB portion, wherein the partitioning of one TB is determined based on the amount of available resources allocated by one TB on the corresponding plurality of frequency domain units or group of frequency domain units.

It is understood that the available resources allocated to a TB in a corresponding frequency domain unit may be understood as the amount of resources allocated to the TB in the corresponding frequency domain unit that can be used for data transmission, for example, the total resources allocated in a frequency domain unit excluding reference signals such as Demodulation reference signals (Demodulation REFERENCE SIGNAL, DMRS), reference signals (CHANNEL STATE Information-REFERENCE SIGNAL, CSI-RS), phase tracking reference signals (Phase-TRACKING REFERENCE SIGNALS, PTRS), etc.

It will be appreciated that where the partitioning of one TB is determined based on the amount of available resources that one TB is allocated over a corresponding plurality of frequency domain units or groups of frequency domain units, the size of at least one TB portion corresponding to one TB is related to the amount of available resources allocated over the frequency domain unit or group of frequency domain units corresponding to at least one TB portion.

It will be appreciated that when one TB corresponds to a plurality of frequency domain units or groups of frequency domain units, the size of the portion TB portion corresponding to one TB is related to the number of available resources allocated on the frequency domain unit or group of frequency domain units corresponding to the portion TB portion.

For example, one TB is divided into 3 TB sections, each TB section is transmitted on one frequency domain unit or frequency domain unit group, and after determining the size of the first 2 TB sections according to the number of available resources allocated on the two frequency domain units or frequency domain unit groups corresponding to the first 2 TB sections, the size of the last TB section can be obtained based on the difference between the size of one TB and the size of the first 2 TB sections.

In some embodiments of the present application, when one TB corresponds to a plurality of frequency domain units or groups of frequency domain units, the size of all TB portions corresponding to one TB is related to the number of available resources allocated on the plurality of frequency domain units or groups of frequency domain units.

In this way, since the size of all TB parts corresponding to one TB may be related to the number of available resources allocated on a plurality of frequency domain units or a group of frequency domain units corresponding to one TB, or the size of a partial TB part corresponding to one TB is related to the number of available resources allocated on a frequency domain unit or a group of frequency domain units corresponding to a partial TB part, flexibility in determining the size of a TB part corresponding to one TB is improved.

In some embodiments of the present application, a size of at least one TB portion corresponding to one TB is related to an MCS level corresponding to a frequency domain unit or a frequency domain unit group corresponding to the at least one TB portion, wherein the division of the one TB portion is determined based on the MCS levels corresponding to the plurality of frequency domain units or the frequency domain unit group corresponding to the one TB.

It is understood that, in the case where the division of one TB portion is determined based on the MCS levels corresponding to the plurality of frequency domain units or the frequency domain unit groups corresponding to one TB, the size of at least one TB portion corresponding to one TB is related to the MCS level corresponding to the frequency domain unit or the frequency domain unit group corresponding to at least one TB portion.

It can be appreciated that when one TB corresponds to a plurality of frequency domain units or frequency domain unit groups, the size of the partial TB portion corresponding to one TB is related to the MCS order corresponding to the frequency domain unit or frequency domain unit group corresponding to the partial TB portion.

For example, one TB is divided into 3 TB sections, each TB section is transmitted on one frequency domain unit or frequency domain unit group, and after determining the size of the first 2 TB sections according to MCS orders corresponding to two frequency domain units or frequency domain unit groups corresponding to the first 2 TB sections, the size of the last TB section can be obtained based on a difference between the size of one TB and the size of the first 2 TB sections.

In some embodiments of the present application, when one TB corresponds to a plurality of frequency domain units or frequency domain unit groups, the size of all TB parts corresponding to one TB is related to MCS orders corresponding to the plurality of frequency domain units or frequency domain unit groups.

In this way, since the sizes of all the TB sections corresponding to one TB may be related to the MCS levels corresponding to the plurality of frequency domain units or the frequency domain unit group corresponding to one TB, or the sizes of the partial TB sections corresponding to one TB may be related to the MCS levels corresponding to the frequency domain units or the frequency domain unit group corresponding to the partial TB section, flexibility in determining the sizes of the TB sections corresponding to one TB is improved.

In some embodiments of the present application, a size of at least one TB portion corresponding to one TB is related to a number of transmission layers corresponding to a frequency domain unit or a frequency domain unit group corresponding to the at least one TB portion, wherein a division of one TB portion is determined based on the number of transmission layers corresponding to a plurality of frequency domain units or the frequency domain unit group corresponding to one TB.

It may be appreciated that, in the case where the division of one TB portion is determined based on the number of transmission layers corresponding to a plurality of frequency domain units or frequency domain unit groups corresponding to one TB, the size of at least one TB portion corresponding to one TB is related to the number of transmission layers corresponding to the frequency domain unit or frequency domain unit group corresponding to at least one TB portion.

It is understood that when one TB corresponds to a plurality of frequency domain units or frequency domain unit groups, the size of the partial TB portion corresponding to one TB is related to the number of transmission layers corresponding to the frequency domain unit or frequency domain unit group corresponding to the partial TB portion.

For example, one TB is divided into 3 TB parts, each TB part is transmitted on one frequency domain unit or frequency domain unit group, and after determining the size of the first 2 TB parts according to the number of transmission layers corresponding to two frequency domain units or frequency domain unit groups corresponding to the first 2 TB parts, the size of the last TB part can be obtained based on the size of one TB and the size of the first 2 TB parts.

In some embodiments of the present application, when one TB corresponds to a plurality of frequency domain units or frequency domain unit groups, the size of all TB parts corresponding to one TB is related to the number of transmission layers corresponding to the plurality of frequency domain units or frequency domain unit groups.

In this way, since the sizes of all the TB sections corresponding to one TB may be related to the number of transmission layers corresponding to a plurality of frequency domain units or frequency domain unit groups corresponding to one TB, or the sizes of the partial TB sections corresponding to one TB are related to the number of transmission layers corresponding to the frequency domain units or frequency domain unit groups corresponding to the partial TB section, the flexibility of determining the sizes of the TB sections corresponding to one TB is improved.

For example, when the base station schedules PDSCH transmission, one TB of the scheduled PDSCH is transmitted in 3 frequency domain units, where one TB is divided into 3 parts, each part is mapped to be transmitted on one frequency domain unit, and 3 TB parts are mapped to be transmitted on 3 frequency domain units, respectively, where the number of PRBs, the number of symbols, the MCS order, and the number of transmission layers of the scheduled PDSCH on each frequency domain unit may be the same or different or not the same. When dividing a TB into 3 TB portions, the base station may determine the size of each TB portion according to the ratio of the available resources on the frequency domain unit corresponding to the TB portion to the total available resources on the 3 frequency domain units, for example, the total available resources are obtained by using the number of PRBs, the number of symbols, the number of MCS orders, and the number of transmission layers, for example, the number of allocated PRBs on the 3 frequency domain units is respectively 10 PRBs, 20 PRBs, 5 PRBs, and the 3 frequency domain units have the same parameters except for the number of allocated PRBs, so that the base station may divide the entire TB into 3 TB portions according to a mode of 2:4:1. Wherein the partitioning may be before or after the CRC, i.e. the base station may partition the TBs containing the CRC. If the number of bits of the TB is not an integer multiple of 7, the individual TB portions may be allocated a number of bits similar to the above ratio, for example, the integer number of bits information may be determined by a rounding up or down operation, for example, the previous TB portion may be determined according to the above ratio, the subsequent TB portion may be the remaining bit portion of the entire TB, and each TB portion may be rate-matched, encoded, mapped, and transmitted in a corresponding frequency domain unit, respectively.

For example, when the base station schedules PDSCH transmission, one TB of the PDSCH is transmitted in 3 frequency domain units, the number of CBs included in each frequency domain unit may be determined according to the ratio of the available resources in each frequency domain unit to the total resources in the 3 frequency domain units, for example, the total available resources are obtained by (the number of prbs—the number of REs occupied by reference signals such as DMRS) the number of MCS levels, for example, the number of allocated PRBs in the 3 frequency domain units is respectively 10 PRBs, 20 PRBs, 5 PRBs, the number of allocated PRBs in the 3 frequency domain units is different, and other parameters except for the number of allocated PRBs are the same, then the base station may divide the entire TB into 7 CBs and map 2 CBs, 4 CBs, and 1 CB to be transmitted in the 3 frequency domain units. In one embodiment, all CBs on each frequency domain unit form one CBG, i.e., one CBG on each of the 3 frequency domain units, each CBG containing 2,4, 1 CBs in number, respectively. In another embodiment, one or more CBGs may be transmitted on one frequency domain unit, for example, the base station configures a maximum number of CBs included in each CBG to be3, and then on 3 frequency domain units, the number of CBs included in one CBG does not exceed 3, where on the 2 nd frequency domain unit, the number of CBs is 4, the 4 CBs may be divided into 2 CBGs, for example, each CBG includes 2 CBs.

In some embodiments of the present application, one of the at least one TB satisfies at least one of:

The number of allocated PRBs of each frequency domain unit or frequency domain unit group in a plurality of frequency domain units or frequency domain unit groups corresponding to one TB is the same or different or not the same;

the number of the allocated symbols of each frequency domain unit or frequency domain unit group in a plurality of frequency domain units or frequency domain unit groups corresponding to one TB is the same or different or not the same;

the MCS orders corresponding to each frequency domain unit or frequency domain unit group in a plurality of frequency domain units or frequency domain unit groups corresponding to one TB are the same or different or not completely the same;

the number of transmission layers corresponding to each frequency domain unit or frequency domain unit group in a plurality of frequency domain units or frequency domain unit groups corresponding to one TB is the same or different or not the same.

In some embodiments of the application, a size of one of the at least one TB is determined based on a first parameter;

wherein the first parameter comprises at least one of:

a band allocated by one TB over a corresponding plurality of frequency domain units or groups of frequency domain units;

A number of symbols allocated by one TB over a corresponding plurality of frequency domain units or groups of frequency domain units;

MCS orders of one TB on a corresponding plurality of frequency domain units or frequency domain unit groups;

one TB occupies the number of symbols occupied by the DMRS on a plurality of corresponding frequency domain units or frequency domain unit groups;

one TB occupies RE number on a plurality of corresponding frequency domain units or frequency domain unit groups;

a number of REs allocated by one TB over a corresponding plurality of frequency domain units or frequency domain unit groups;

one TB controls the overhead of signaling on a corresponding plurality of frequency domain units or groups of frequency domain units;

One TB corresponds to the number of transmission layers on a corresponding plurality of frequency domain units or groups of frequency domain units.

In some embodiments of the present application, the transmission of the at least one TB portion included in the one TB includes at least one of:

Each of the at least one TB portion is separately CRC scrambled;

each of the at least one TB portion separately performs at least one of coding, modulation, and resource mapping;

The TB part on each frequency domain unit or frequency domain unit group corresponding to the at least one TB part is respectively used for at least one of coding, modulating and resource mapping;

And performing rate matching on the TB parts on each frequency domain unit or each frequency domain unit group corresponding to the at least one TB part respectively.

In some embodiments of the present application, each TB portion in the at least one TB portion performs resource mapping separately, which may be understood as that each TB portion performs resource mapping in a frequency domain unit or a frequency domain unit group corresponding to each TB portion.

In some embodiments of the present application, the rate matching is performed on the TB portion on each frequency domain unit corresponding to the at least one TB portion, respectively, including that the first TB portion on the first frequency domain unit is rate matched based on a second parameter of the first frequency domain unit.

In some embodiments of the application, the first frequency domain unit is one frequency domain unit of a plurality of frequency domain units.

In some embodiments of the present application, the first frequency domain unit is a frequency domain unit corresponding to one TB portion of the at least one TB portion.

In some embodiments of the present application, the second parameter includes at least one of an available resource to which the first TB portion is allocated in the first frequency domain unit, a number of PRBs to which the first TB portion is allocated in the first frequency domain unit, a number of symbols to which the first TB portion is allocated in the first frequency domain unit, an MCS level to which the first TB portion corresponds in the first frequency domain unit, a number of transmission layers to which the first TB portion corresponds in the first frequency domain unit, a number of symbols occupied by the DMRS of the first TB portion in the first frequency domain unit, and an overhead of control signaling of the first TB portion in the first frequency domain unit.

In some embodiments of the present application, the rate matching is performed on the TB portion on each frequency domain unit group corresponding to the at least one TB portion, respectively, including that the second TB portion on the first frequency domain unit group is rate matched based on a third parameter of the first frequency domain unit group.

In some embodiments of the present application, the first frequency domain unit group is one of a plurality of frequency domain unit groups.

In some embodiments of the present application, the first frequency domain unit group is a frequency domain unit group corresponding to one TB portion of the at least one TB portion.

In some embodiments of the present application, the third parameter includes at least one of available resources allocated by the second TB section in the first frequency domain element group, a number of PRBs allocated by the second TB section in the first frequency domain element group, a number of symbols allocated by the second TB section in the first frequency domain element group, an MCS order corresponding to the second TB section in the first frequency domain element group, a number of transmission layers corresponding to the second TB section in the first frequency domain element group, a number of symbols occupied by the first TB section in the first frequency domain element group, and an overhead of control signaling by the first TB section in the first frequency domain element group.

In some embodiments of the present application, after the "first device receives the first channel based on the first information" in the above step 201, the transmission method provided in the embodiment of the present application further includes the following step 301.

Step 301, the first device feeds back at least one TB according to a fourth manner.

In an embodiment of the present application, the fourth aspect includes any one of the following:

feedback is performed for each TB segment;

Feedback is carried out on the TB part on each frequency domain unit;

Feedback is performed for the TB portion on each frequency domain unit group.

For PDSCH transmission, for example, the terminal may perform ACK feedback or NACK feedback for each TB portion in each TB, respectively, or for all TB portions on each frequency domain unit or group of frequency domain units.

For PUSCH transmission, the network side device may feedback for each TB portion in each TB, or for all TB portions on each frequency domain unit or group of frequency domain units, for example, PUSCH transmission by downlink feedback information (Downlink Feedback Information, DFI).

In the embodiment of the application, after receiving the first channel based on the first information, the first device can feed back the TB part on each frequency domain unit or the frequency domain unit group when feeding back at least one TB carried on the first channel, so that the overhead of TB feedback is saved, and can feed back each TB part, so that during retransmission, only the unsuccessfully received TB part can be retransmitted, thereby saving the overhead of retransmission.

In some embodiments of the present application, the bit number of the feedback information corresponding to the feedback of one TB of the at least one TB is related to at least one of the following:

the number of TB parts one TB contains;

the number of a plurality of frequency domain units or frequency domain unit groups corresponding to one TB;

The bit number of the feedback information corresponding to each TB feedback is a first number.

In some embodiments of the present application, the number of bits of feedback information corresponding to one TB feedback may be the number of TB parts included in one TB.

In some embodiments of the present application, the number of bits of feedback information corresponding to one TB feedback may be the number of a plurality of frequency domain units or frequency domain unit groups corresponding to one TB.

Therefore, the bit number of the feedback information corresponding to the TB feedback can be determined according to the frequency domain unit number or the frequency domain unit group number of the actually scheduled TB, so that the bit number of the feedback information is saved, and the uplink feedback resource is saved.

In some embodiments of the application, the first number includes any one of:

The network side equipment configuration or predefined rules determine or report the maximum number of TB parts contained in one TB;

the network side equipment configuration or predefined rules determine or report the maximum number of frequency domain units corresponding to one TB;

The network side equipment configuration or the predefined rule determines or the maximum number of the frequency domain unit groups corresponding to one TB reported by the terminal.

In some embodiments of the present application, the number of bits of feedback information corresponding to one TB feedback may determine or report the maximum number of TB parts included in one TB for the network side device configuration or a predefined rule.

In some embodiments of the present application, the number of bits of feedback information corresponding to one TB feedback may be determined for the network side device configuration or a predefined rule or the maximum number of frequency domain units corresponding to one TB reported by the terminal.

In some embodiments of the present application, the number of bits of feedback information corresponding to one TB feedback may be determined for the network side device configuration or a predefined rule or the maximum number of frequency domain unit groups corresponding to one TB reported by the terminal.

In some embodiments of the present application, the "the first device feeds back the at least one TB according to the fourth manner" in the above step 301 may be specifically implemented by the following step 301a or step 301b or step 301 c.

In step 301a, for bits without a corresponding TB portion, the first device feeds back a NACK.

In an embodiment of the present application, the number of TB portions included in the one TB is smaller than the first number.

It is understood that in case that one TB contains a smaller number of TB parts than the first number, the first device may feed back a NACK for bits without the corresponding TB part.

It may be understood that, in the case that the number of bits of the feedback information corresponding to one TB feedback is the maximum number of TB parts included in one TB that is determined or reported by the network side device configuration or the predefined rule, if the number of TB parts actually included in one TB is smaller than the maximum number of TB parts included in one TB, the first device may feedback a NACK for the bits without the corresponding TB parts if there are no bits of the feedback information corresponding to one TB feedback in the number of bits of the feedback information corresponding to one TB.

Step 301b, for bits without corresponding frequency domain units, the first device feeds back NACK.

In an embodiment of the present application, the number of frequency domain units corresponding to the one TB is smaller than the first number

It may be appreciated that in case that the number of frequency domain units corresponding to one TB is smaller than the first number, the first device may feed back NACK for bits without corresponding frequency domain units.

It may be understood that, when the number of bits of feedback information corresponding to one TB feedback is the maximum number of frequency domain units corresponding to one TB that is determined by the network side device configuration or the predefined rule or reported by the terminal, if the number of frequency domain units actually corresponding to one TB is smaller than the maximum number of frequency domain units corresponding to one TB, the number of bits of feedback information corresponding to one TB feedback may have bits without corresponding frequency domain units, and for the bits without corresponding frequency domain units, the first device may feedback NACK.

Step 301c, for bits without a corresponding frequency domain unit group, the first device feeds back a NACK.

In the embodiment of the present application, the number of frequency domain unit groups corresponding to the one TB is smaller than the first number.

It may be appreciated that in case that the number of frequency domain unit groups corresponding to one TB is smaller than the first number, the first device may feed back NACK for bits without the corresponding frequency domain unit group.

It may be understood that, when the number of bits of feedback information corresponding to one TB feedback is the maximum number of frequency domain unit groups corresponding to one TB determined by the network side device configuration or the predefined rule or reported by the terminal, if the number of frequency domain unit groups actually corresponding to one TB is smaller than the maximum number of frequency domain unit groups corresponding to one TB, the number of bits of feedback information corresponding to one TB feedback may have no bits corresponding to the frequency domain unit groups, and for the bits not corresponding to the frequency domain unit groups, the first device may feedback NACK.

For example, assuming that a cell is composed of four frequency domain units, in the same time unit, the terminal may have one or more active frequency domain units, for example, 3 frequency domain units are activated in a certain time unit, on the terminal side, after the terminal receives the PDSCH, the terminal may process the TB portion transmitted for each of the 3 frequency domain units separately, and if each TB portion CRC passes, the corresponding TB portion feeds back an ACK, and otherwise feeds back a NACK. And may be fed back separately for the TB portion transmitted for each frequency domain unit. For another example, if a TB portion on a certain frequency domain unit is divided into a plurality of CBs, when CRCs of all CBs on the frequency domain unit pass, the corresponding TB portion feeds back an ACK, otherwise feeding back a NACK.

The transmission method provided by the embodiment of the present application will be exemplarily described below in four embodiments.

In a first possible embodiment:

in some embodiments of the present application, as shown in fig. 4, the transmission method provided in the embodiment of the present application may include the following steps A1 to A4.

A1, the terminal receives a first channel carrying at least one TB sent by network side equipment based on first information;

A2, the terminal sends feedback information of at least one TB to the network side equipment;

a3, the network side equipment retransmits at least one TB part in the at least one TB by referring to the feedback information;

A4, the terminal receives at least one TB part of the retransmission.

It should be noted that, in the foregoing step A3 and step A4 are alternative solutions, the network side device may not retransmit at least one TB portion in at least one TB, for example, in a case where all TB portions in the at least one TB are successfully received, or in a case where a data packet corresponding to a TB is overtime, the network side device may not perform retransmission scheduling.

It should be noted that, for the description of the steps A1 to A4, reference may be made to the description of the embodiments, and the description is omitted here.

In a second possible embodiment:

In some embodiments of the present application, as shown in fig. 5, the transmission method provided in the embodiment of the present application may include the following steps B1 to B5.

B1, the terminal sends a first channel carrying at least one TB to network side equipment based on first information;

b2, the network side equipment receives the first channel;

B3, the network side equipment sends feedback information of at least one TB to the terminal;

And B4, retransmitting at least one TB part with the corresponding feedback information indicated by the network side equipment as NACK by the terminal.

B5, the network side equipment receives at least one TB part of the retransmission.

It should be noted that, in the foregoing steps B4 and B5 are alternative solutions, the terminal may not retransmit at least one TB portion in at least one TB, for example, in a case where all TB portions in the at least one TB are successfully received, that is, feedback information of all TB portions in the at least one TB is ACK, or in a case where a packet corresponding to the TB is time-out, the terminal may not perform retransmission scheduling.

It should be noted that, for the description of the steps B1 to B5, reference may be made to the description of the embodiments, and the description is omitted here.

In a third possible embodiment:

In some embodiments of the present application, as shown in fig. 6, the transmission method provided in the embodiment of the present application may include the following steps C1 to C5.

C1, the network side equipment sends a first channel carrying at least one TB to the terminal based on the first information;

C2, the terminal receives a first channel based on the first information;

C3, the terminal sends feedback information of at least one TB to the network side equipment;

c4, the network side equipment retransmits at least one TB part in the at least one TB by referring to the feedback information;

And C5, the terminal receives at least one TB part of the retransmission.

It should be noted that, in the foregoing steps C4 and C5 are alternative solutions, the network side device may not retransmit at least one TB portion in at least one TB, for example, in a case where all TB portions in the at least one TB are successfully received, or in a case where a data packet corresponding to a TB is overtime, the network side device may not perform retransmission scheduling.

It should be noted that, for the relevant descriptions in the above steps C1 to C5, reference may be made to the descriptions in the above embodiments, which are not repeated here.

In a fourth possible embodiment:

In some embodiments of the present application, as shown in fig. 7, the transmission method provided in the embodiment of the present application may include the following steps D1 to D5.

D1, the terminal sends a first channel carrying at least one TB to network side equipment based on first information;

D2, the network side equipment receives a first channel based on the first information;

And D3, the network side equipment sends second information to the terminal.

In some embodiments of the present application, the second information is used to schedule retransmission of at least one TB portion;

d4, the terminal retransmits at least one TB part indicated by the network side equipment based on the second information indicated by the network side equipment;

d5, the network side equipment receives at least one TB part of the retransmission.

It should be noted that, in the foregoing step D3 and step D5 are alternative solutions, the network side device may not perform retransmission scheduling on at least one TB portion in at least one TB, for example, in a case where all TB portions in the at least one TB are successfully received, or in a case where a data packet corresponding to a TB is overtime, the network side device may not perform retransmission scheduling, and the terminal does not need to retransmit the corresponding TB portion.

It should be noted that, for the relevant descriptions in the above steps D1 to D5, reference may be made to the descriptions in the above embodiments, which are not repeated here.

In some embodiments of the present application, the first device is a terminal, and the "the first device transmits the first channel based on the first information" in the step 201 may be specifically implemented by the following step 201 a.

In step 201a, the first device retransmits the third TB portion based on the first information and the second indication information from the network side device.

In the embodiment of the present application, the third TB section is at least one TB section of one TB, and the second indication information is used to instruct the terminal to retransmit the third TB section, or the second indication information includes feedback information of at least one TB section of one TB.

For example, in case the first device is a terminal, for PUSCH transmission, the first device may retransmit at least one TB portion of the at least one TB, for example, a TB portion for feedback NACK, or a TB portion indicated by the network side device.

In some embodiments of the present application, in a case where the first device is a network-side device, for PUSCH transmission, the first device may perform retransmission scheduling on at least one TB portion of the at least one TB, for example, schedule a TB portion through which a retransmission CRC does not pass.

In some embodiments of the present application, the "first device retransmits the third TB portion" in step 201a may be specifically implemented by step 201a1 described below.

In step 201a1, the terminal retransmits the third TB portion according to the first mode.

In an embodiment of the present application, the first mode includes any one of the following:

retransmitting a TB part of retransmission indicated by the network side equipment;

Retransmitting a TB part on a frequency domain unit of retransmission indicated by the network side equipment;

Retransmitting a TB part on a frequency domain unit group of retransmission indicated by the network side equipment;

retransmitting a TB part of retransmission indicated by the terminal;

Retransmitting a TB part on a frequency domain unit of retransmission indicated by the terminal;

And retransmitting the TB part on the frequency domain unit group of the retransmission indicated by the terminal.

It may be appreciated that the terminal may determine the retransmitted TB portion according to an indication of the network side device, for example, the network side device sends DCI to schedule the terminal to retransmit a certain TB and instruct the terminal to retransmit which TB portion or which frequency domain units or corresponding TB portions on a frequency domain unit group, or the terminal itself may instruct itself to retransmit a third TB portion, or the terminal may instruct itself to retransmit a TB portion on a certain TB portion or a certain frequency domain unit group, for example, when the terminal retransmits a TB portion on a Configured Grant (CG) PUSCH resource, which TB portion or which frequency domain unit or corresponding TB portion on a frequency domain unit group may be indicated by CG uplink control information (Uplink Control Information, UCI).

In some embodiments of the present application, the "first device retransmits the third TB portion" in step 201a may be specifically implemented by step 201a2 described below.

In step 201a2, if the second indication information includes feedback information, the terminal retransmits at least one TB portion for which the feedback information is NACK.

In this way, since the first device may retransmit only at least one TB portion to which NACK is fed back, unnecessary retransmissions are reduced, and the capacity of the system is improved.

In some embodiments of the present application, the second indication information is used to indicate at least one of a retransmitted TB portion, a frequency domain unit corresponding to the retransmitted TB portion, and a frequency domain unit group corresponding to the retransmitted TB portion.

In some embodiments of the present application, the network side device may carry the second indication information in DCI for scheduling retransmission.

In some embodiments of the present application, the DCI for scheduling retransmission may include a specific bit field for indicating at least one of a retransmitted TB portion, a frequency domain unit corresponding to the retransmitted TB portion, and a frequency domain unit group corresponding to the retransmitted TB portion.

It may be appreciated that in one implementation, the first information is used to schedule at least one TB, the at least one TB is a primary TB, the second information is used to schedule at least one TB, the at least one TB scheduled by the second information is a retransmission TB, and the TBs scheduled by the first information and the TBs scheduled by the second information correspond to the same TB. In another implementation, the first information is used to schedule at least one TB, the first information schedules TBs for retransmission (e.g., the terminal determines whether one TB is an initial TB or a retransmission TB according to HARQ process or new data indication (New data indicator, NDI) information), and the second information is used to indicate which TB portions are included in the at least one TB.

In some embodiments of the present application, the first information is used to schedule the terminal to retransmit the third TB portion on the first set of frequency domain units.

In some embodiments of the present application, the first set of frequency domain units includes any one of:

All or part of the frequency domain unit for initially transmitting the third TB portion;

all or part of the set of frequency domain elements for the initial transmission of the third TB portion.

In some embodiments of the present application, the first information is used to schedule the terminal to retransmit, on the first set of frequency domain units, at least one TB corresponding to a first HARQ process, where the first HARQ process is a HARQ process in the HARQ processes corresponding to the at least one TB.

It is understood that when the first set of frequency domain units is a partial frequency domain unit or a partial frequency domain unit group for the initial transmission of the third TB portion, the first set of frequency domain units is a frequency domain unit subset of the frequency domain units of the initial transmission of the third TB.

In some embodiments of the present application, the frequency domain unit used for retransmitting the third TB portion is the same as or different from or not identical to the frequency domain unit used for initially transmitting the third TB portion, and the frequency domain unit set used for retransmitting the third TB portion is the same as or different from or not identical to the frequency domain unit set used for initially transmitting the third TB portion.

In some embodiments of the present application, the "first device retransmits the third TB portion" in step 201a may be specifically implemented by step 201a3 described below.

Step 201a3, the terminal retransmits the third TB section in the second manner.

In an embodiment of the present application, the second mode includes at least one of:

the division of the third TB part is the same as the division of the corresponding TB part when one TB corresponding to the third TB part is transmitted initially;

the corresponding TB part of the third TB part and one corresponding TB of the third TB part contains the same bit information or CB or CBG when in initial transmission;

each of the third TB portions that the terminal does not expect to be divided into different TB portions at the time of retransmission;

the terminal determines a third TB part of retransmission according to the division of the TB part in the initial transmission;

When retransmitting the third TB part, the frequency domain units or the frequency domain unit groups corresponding to the third TB part are not divided;

Each of the third TB portions is not expected by the terminal to be scheduled for transmission on a plurality of frequency domain units or groups of frequency domain units;

The terminal divides the third TB section according to the frequency domain unit or the frequency domain unit group to which the third TB section is scheduled when retransmitting the third TB section.

In some embodiments of the present application, when the first device retransmits the third TB portion, the third TB portion may be further divided into different TB portions.

It should be noted that, for the detailed steps of retransmitting the other TB portion in at least one TB, reference may be made to the description of retransmitting the third TB in the above embodiment, which is not repeated here.

In some embodiments of the present application, the first device is a terminal, and the "the first device receives the first channel based on the first information" in the step 201 may be specifically implemented by the following step 201 b.

Step 201b, the first device receives the fourth TB section based on the first information and the third indication information from the network side device.

In an embodiment of the present application, the fourth TB unit is at least one TB unit of one TB, and the third indication information is used to instruct the terminal to receive the fourth TB unit.

For example, in case the first device is a terminal, the first device may receive at least one TB portion retransmitted by the network side device for PDSCH transmission.

In some embodiments of the present application, in the case where the first device is a network-side device, the first device may receive at least one TB portion retransmitted by the terminal for PDSCH transmission.

In some embodiments of the application, the fourth TB section includes at least one of:

A TB part of retransmission indicated by the network side equipment;

A TB part on a frequency domain unit of retransmission indicated by the network side equipment;

the TB portion on the frequency domain unit group of the retransmission indicated by the network side device.

It is understood that the first device may receive for the retransmitted TB portion indicated by the network side device.

It is understood that the first device may receive the TB portion on the frequency domain unit of the retransmission indicated by the network side device.

It is understood that the first device may receive the TB portion on the frequency domain unit group for retransmission indicated by the network side device.

In some embodiments of the present application, the third indication information is used to indicate at least one of a retransmitted TB portion, a frequency domain unit corresponding to the retransmitted TB portion, and a frequency domain unit group corresponding to the retransmitted TB portion.

In some embodiments of the present application, the first information is used to schedule the terminal to receive the fourth TB portion on the second set of frequency domain units.

In some embodiments of the present application, the second set of frequency domain units includes any one of:

All or part of the frequency domain unit for initially transmitting the fourth TB portion;

all or part of the set of frequency domain elements for the primary transmission of the fourth TB segment.

In some embodiments of the present application, the first information is used to schedule the terminal to receive, on the second set of frequency domain units, a fourth TB portion corresponding to a second HARQ process, where the second HARQ process is a HARQ process in the HARQ processes corresponding to the at least one TB.

In some embodiments of the present application, the frequency domain unit used for retransmitting the fourth TB portion is the same as or different from or not identical to the frequency domain unit used for initially transmitting the fourth TB portion, and the frequency domain unit set used for retransmitting the fourth TB portion is the same as or different from or not identical to the frequency domain unit set used for initially transmitting the fourth TB portion.

In some embodiments of the present application, the "the first device receives the fourth TB section" in step 201b may be specifically implemented by step 201b1 described below.

In step 201b1, the terminal receives the fourth TB section according to the third mode.

In an embodiment of the present application, the third mode includes at least one of the following:

The division of the fourth TB part is the same as the corresponding TB part division in the initial transmission of one TB;

the fourth TB part and the corresponding TB part in the initial transmission of one TB contain the same bit information or CB or CBG;

each of the fourth TB portions that the terminal does not expect to be divided into different TB portions at the time of retransmission;

determining a fourth TB part received according to the division of the TB part at the initial transmission time;

When retransmitting the fourth TB part, the frequency domain units or the frequency domain unit groups corresponding to the fourth TB part are not divided;

Each of the fourth TB portions is not expected by the terminal to be scheduled for transmission on a plurality of frequency domain units or groups of frequency domain units;

The fourth TB portion is divided according to the frequency domain unit or the frequency domain unit group to which the fourth TB portion is scheduled when the fourth TB portion is retransmitted.

In some embodiments of the present application, it may be desirable for the fourth TB portion to be further divided into different TB portions when the first device receives the fourth TB portion.

It should be noted that, for the detailed steps of receiving the other TB portion of the retransmission, reference may be made to the description of receiving the fourth TB in the above embodiment, which is not repeated here.

The above embodiments of the method, or various possible implementation manners in the embodiments of the method, may be executed separately, or may be executed in any two or more combinations with each other, and may specifically be determined according to actual use requirements, which is not limited by the embodiments of the present application.

According to the transmission method provided by the embodiment of the application, the execution main body can be a transmission device. In the embodiment of the present application, a transmission method performed by a transmission device is taken as an example, and the transmission device provided in the embodiment of the present application is described.

Fig. 8 shows a schematic diagram of one possible configuration of a transmission device involved in an embodiment of the present application. As shown in fig. 8, the transmission device 50 may include a processing module 51;

The processing module 51 is configured to receive or send a first channel, where the first channel carries at least one TB, and the first device includes a terminal or a network side device, where the first information is used to configure or activate or schedule transmission of the first channel, where transmission of all or part of TBs in the at least one TB satisfies that one TB in the all or part of TBs is scheduled to be transmitted on a plurality of frequency domain units or frequency domain unit groups, and one TB includes at least one TB portion, and one TB portion is transmitted on one frequency domain unit or frequency domain unit group.

The embodiment of the application provides a transmission device, which is used for preventing any TB part from failing to be received due to different channel quality of each frequency domain unit or frequency domain unit group when the transmission device receives or transmits a first channel carrying at least one TB based on first information, so that the situation that the whole TB or any TB part needs to be retransmitted is avoided, and unnecessary retransmission expenditure is avoided.

In one possible implementation, one of the at least one TB portion includes any one of a portion bit of the one TB, at least one code block CB of the one TB, and at least one code block group CBG of the one TB, wherein the one CBG includes at least one CB.

In one possible implementation, at least one TB satisfies at least one of:

Each of the at least one TB corresponds to one hybrid automatic repeat request, HARQ, process;

different ones of the at least one TB correspond to different HARQ processes;

In one possible implementation, one TB is partitioned according to a first rule;

Wherein the first rule comprises at least one of:

Dividing a TB including a cyclic redundancy check CRC;

dividing a TB which does not include CRC;

CB-dividing the TB comprising the CRC;

The partitioning of one TB is determined based on at least one of a number of frequency domain units or groups of frequency domain units corresponding to one TB, a number of PRBs allocated to one TB over a corresponding plurality of frequency domain units or groups of frequency domain units, a number of symbols allocated to one TB over a corresponding plurality of frequency domain units or groups of frequency domain units, a number of available resources allocated to one TB over a corresponding plurality of frequency domain units or groups of frequency domain units, an MCS order corresponding to one TB over a corresponding plurality of frequency domain units or groups of frequency domain units, a number of transmission layers corresponding to one TB over a corresponding plurality of frequency domain units or groups of frequency domain units;

based on first indication information division of network side equipment, the first indication information is used for indicating at least one of the size of a TB part on each frequency domain unit or frequency domain unit group in a plurality of frequency domain units or frequency domain unit groups corresponding to one TB;

The number of TB parts one TB contains.

In one possible implementation, a TB including CRC is CB partitioned, wherein the partitioned CB satisfies at least one of:

In one possible implementation, the size of at least one TB portion corresponding to one TB is related to the number of PRBs allocated on the frequency domain unit or group of frequency domain units corresponding to the at least one TB portion, wherein the partitioning of one TB is determined based on the number of PRBs allocated on the corresponding plurality of frequency domain units or group of frequency domain units by one TB

The size of at least one TB portion corresponding to one TB is related to the number of symbols allocated on the frequency domain unit or group of frequency domain units corresponding to the at least one TB portion, wherein the partitioning of one TB is determined based on the number of symbols allocated on the corresponding plurality of frequency domain units or group of frequency domain units of one TB

The size of at least one TB portion corresponding to one TB is related to the amount of available resources allocated on the frequency domain unit or group of frequency domain units corresponding to the at least one TB portion, wherein the partitioning of one TB is determined based on the amount of available resources allocated on the corresponding plurality of frequency domain units or group of frequency domain units by one TB

The size of at least one TB portion corresponding to one TB is related to the MCS order corresponding to the frequency domain unit or group of frequency domain units corresponding to at least one TB portion, wherein the partitioning of one TB portion is determined based on the MCS orders corresponding to the plurality of frequency domain units or group of frequency domain units corresponding to one TB

The size of at least one TB portion corresponding to one TB is related to the number of transmission layers corresponding to a frequency domain unit or a frequency domain unit group corresponding to at least one TB portion, wherein the division of one TB portion is determined based on the number of transmission layers corresponding to a plurality of frequency domain units or frequency domain unit groups corresponding to one TB.

In one possible implementation, one TB satisfies at least one of the following:

In one possible implementation, the size of one TB is determined based on a first parameter;

wherein the first parameter comprises at least one of:

One TB demodulates the symbol number occupied by the reference signal DMRS on a plurality of corresponding frequency domain units or frequency domain unit groups;

a number of resource elements RE allocated by one TB over a corresponding plurality of frequency domain elements or groups of frequency domain elements;

In one possible implementation, the transmission of the at least one TB portion includes at least one of:

Each of the at least one TB portion is separately CRC scrambled;

In one possible implementation manner, the TB part on each frequency domain unit corresponding to at least one TB part is respectively subjected to rate matching, and the method comprises the steps that a first TB part on a first frequency domain unit is subjected to rate matching based on a second parameter of the first frequency domain unit, wherein the first frequency domain unit is one frequency domain unit in a plurality of frequency domain units;

The second parameter includes at least one of available resources allocated by the first TB portion in the first frequency domain unit, a number of PRBs allocated by the first TB portion in the first frequency domain unit, a number of symbols allocated by the first TB portion in the first frequency domain unit, an MCS order corresponding to the first TB portion in the first frequency domain unit, a number of transmission layers corresponding to the first TB portion in the first frequency domain unit, a number of symbols occupied by the first TB portion in the first frequency domain unit, and an overhead of control signaling by the first TB portion in the first frequency domain unit.

In one possible implementation manner, the rate matching is performed on the TB part on each frequency domain unit group corresponding to at least one TB part, and the method comprises the steps that the rate matching is performed on the second TB part on a first frequency domain unit group based on a third parameter of the first frequency domain unit group, wherein the first frequency domain unit group is one frequency domain unit group in a plurality of frequency domain unit groups;

the third parameter includes at least one of available resources allocated by the second TB portion in the first frequency domain cell group, a number of PRBs allocated by the second TB portion in the first frequency domain cell group, a number of symbols allocated by the second TB portion in the first frequency domain cell group, an MCS order corresponding to the second TB portion in the first frequency domain cell group, a number of transmission layers corresponding to the second TB portion in the first frequency domain cell group, a number of symbols occupied by the DMRS of the first TB portion in the first frequency domain cell group, and an overhead of control signaling of the first TB portion in the first frequency domain cell group.

In one possible implementation manner, the first device is a terminal, and the processing module 51 is specifically configured to retransmit a third TB portion, where the third TB portion is at least one TB portion of one TB, based on the first information and second indication information from the network side device, where the second indication information is used to instruct the terminal to retransmit the third TB portion, or where the second indication information includes feedback information of at least one TB portion of one TB.

In one possible implementation, the processing module 51 is specifically configured to retransmit the third TB portion according to the first mode;

wherein the first mode comprises any one of the following:

retransmitting a TB part of retransmission indicated by the terminal;

In a possible implementation manner, the processing module 51 is specifically configured to retransmit, in case the second indication information includes feedback information, at least one TB portion for which the feedback information is NACK.

In one possible implementation, the second indication information is used to indicate at least one of a retransmitted TB section, a frequency domain unit corresponding to the retransmitted TB section, and a set of frequency domain units corresponding to the retransmitted TB section.

In one possible implementation, the first information is used to schedule the terminal to retransmit the third TB portion on the first set of frequency domain units;

wherein the first set of frequency domain units comprises any one of:

In one possible implementation, the frequency domain unit used for retransmitting the third TB portion is the same as or different from or not the same as the frequency domain unit used for initially transmitting the third TB portion, and the frequency domain unit set used for retransmitting the third TB portion is the same as or different from or not the same as the frequency domain unit set used for initially transmitting the third TB portion.

In one possible implementation, the processing module 51 is specifically configured to retransmit the third TB portion according to a second mode, where the second mode includes at least one of the following:

the division of the third TB part is the same as the corresponding TB part division in the initial transmission of the corresponding TB;

The third TB part and the corresponding TB part contain the same bit information or CB or CBG when the corresponding TB is transmitted initially;

In a possible implementation manner, the processing module 51 is specifically configured to receive a fourth TB portion, where the fourth TB portion is at least one TB portion of one TB, based on the first information and third indication information from the network side device, where the third indication information is used to instruct the terminal to receive the fourth TB portion.

In one possible implementation, the fourth TB portion includes at least one of:

A TB part of retransmission indicated by the network side equipment;

In one possible implementation, the third indication information is used to indicate at least one of a retransmitted TB portion, a frequency domain unit corresponding to the retransmitted TB portion, and a set of frequency domain units corresponding to the retransmitted TB portion.

In one possible implementation, the first information is used to schedule the terminal to receive a fourth TB portion on the second set of frequency domain units;

Wherein the second set of frequency domain units comprises any one of:

In one possible implementation, the frequency domain unit used for retransmitting the fourth TB portion is the same as or different from or not the same as the frequency domain unit used for initially transmitting the fourth TB portion, and the frequency domain unit set used for retransmitting the fourth TB portion is the same as or different from or not the same as the frequency domain unit set used for initially transmitting the fourth TB portion.

In one possible implementation, the processing module 51 is specifically configured to receive the fourth TB portion according to a third mode, where the third mode includes at least one of the following:

In a possible implementation manner, referring to fig. 8, as shown in fig. 9, the transmission apparatus provided by the embodiment of the present application further includes a feedback module 52, configured to, after the processing module 51 receives the first channel based on the first information, feed back at least one TB according to a fourth manner;

Wherein the fourth aspect comprises any one of the following:

feedback is performed for each TB segment;

Feedback is carried out on the TB part on each frequency domain unit;

Feedback is performed for the TB portion on each frequency domain unit group.

In one possible implementation, the number of bits of feedback information corresponding to one TB feedback is related to at least one of the following:

the number of TB parts one TB contains;

In one possible implementation, the first number includes any one of:

In one possible implementation, the feedback module 52 is specifically configured to:

For bits without corresponding TB portions, feeding back a NACK, wherein one TB contains a number of TB portions less than the first number;

For bits without corresponding frequency domain units, feeding back NACK, wherein the number of the frequency domain units corresponding to one TB is smaller than the first number;

And feeding back NACK for the bits without corresponding frequency domain unit groups, wherein the number of the frequency domain unit groups corresponding to one TB is smaller than the first number.

The transmission device in the embodiment of the application may be an electronic device, for example, an electronic device with an operating system, or may be a component in an electronic device, for example, an integrated circuit or a chip. The device may be a mobile electronic device or a non-mobile electronic device. The mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted electronic device, a wearable device, a UMPC, a netbook, a PDA, or the like, and the non-mobile electronic device may be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a Television (TV), an teller machine, a self-service machine, or the like, which is not particularly limited in the embodiment of the present application.

The transmission device provided by the embodiment of the application can realize each process realized by the embodiment of the method and achieve the same technical effect, and in order to avoid repetition, the description is omitted here.

Optionally, as shown in fig. 10, the embodiment of the present application further provides a communication device 700, including a processor 701 and a memory 702, where the memory 702 stores a program or instructions executable on the processor 701, for example, when the communication device 700 is a terminal, the program or instructions implement the steps of the above-mentioned method embodiment when executed by the processor 701, and achieve the same technical effects. When the communication device 700 is a network side device, the program or the instruction, when executed by the processor 701, implements the steps of the method embodiment described above, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

The embodiment of the application also provides a first device, when the first device is a terminal, the first device comprises a processor and a communication interface, the communication interface is coupled with the processor, and the processor is used for running a program or instructions to realize the steps in the embodiment of the method. The terminal embodiment corresponds to the terminal-side method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the terminal embodiment, and the same technical effects can be achieved. Specifically, fig. 11 is a schematic diagram of a hardware structure of a terminal for implementing an embodiment of the present application.

The terminal 100 includes, but is not limited to, at least some of the components of a radio frequency unit 101, a network module 102, an audio output unit 103, an input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, and a processor 110.

Those skilled in the art will appreciate that the terminal 100 may further include a power source (e.g., a battery) for powering the various components, and the power source may be logically connected to the processor 110 by a power management system so as to perform functions such as managing charging, discharging, and power consumption by the power management system. The terminal structure shown in fig. 11 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine some components, or may be arranged in different components, which will not be described in detail herein.

It should be appreciated that in embodiments of the present application, the input unit 104 may include a graphics processing unit (Graphics Processing Unit, GPU) 1041 and a microphone 1042, where the graphics processor 1041 processes image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 107 includes at least one of a touch panel 1071 and other input devices 1072. The touch panel 1071 is also referred to as a touch screen. The touch panel 1071 may include two parts of a touch detection device and a touch controller. Other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In the embodiment of the present application, after receiving the downlink data from the network side device, the radio frequency unit 101 may transmit the downlink data to the processor 110 for processing, and in addition, the radio frequency unit 101 may send the uplink data to the network side device. Typically, the radio frequency unit 101 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

Memory 109 may be used to store software programs or instructions and various data. The memory 109 may mainly include a first memory area storing programs or instructions and a second memory area storing data, wherein the first memory area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 109 may include volatile memory or nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM), static random access memory (STATIC RAM, SRAM), dynamic random access memory (DYNAMIC RAM, DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate Synchronous dynamic random access memory (Double DATA RATE SDRAM, DDRSDRAM), enhanced Synchronous dynamic random access memory (ENHANCED SDRAM, ESDRAM), synchronous link dynamic random access memory (SYNCH LINK DRAM, SLDRAM), and Direct random access memory (DRRAM). Memory 109 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

Processor 110 may include one or more processing units, and optionally, processor 110 integrates an application processor that primarily processes operations involving an operating system, user interface, application programs, etc., and a modem processor that primarily processes wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 110.

Wherein the processor 110 is configured to receive or transmit a first channel, where the first channel carries at least one TB, based on first information, where the first information is used to configure or activate or schedule a first channel transmission;

wherein the transmission of all or part of the TBs of the at least one TB satisfies:

one of all or part of the TBs is scheduled for transmission on a plurality of frequency domain units or groups of frequency domain units, one TB including at least one TB portion, one TB portion being transmitted on one frequency domain unit or group of frequency domain units.

It can be appreciated that the implementation process of each implementation manner mentioned in this embodiment may refer to the related descriptions of the method embodiments in fig. 3 to fig. 7, and achieve the same or corresponding technical effects, which are not repeated herein.

The embodiment of the application also provides a first device, when the first device is a network side device, the first device comprises a processor and a communication interface, the communication interface is coupled with the processor, and the processor is used for running a program or instructions to realize the steps of the method embodiment. The network side device embodiment corresponds to the network side device method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the network side device embodiment, and the same technical effects can be achieved.

Specifically, the embodiment of the application also provides network side equipment. As shown in fig. 12, the network-side apparatus 900 includes an antenna 91, a radio frequency device 92, a baseband device 93, a processor 94, and a memory 95. The antenna 91 is connected to a radio frequency device 92. In the uplink direction, the radio frequency device 92 receives information via the antenna 91, and transmits the received information to the baseband device 93 for processing. In the downlink direction, the baseband device 93 processes information to be transmitted, and transmits the processed information to the radio frequency device 92, and the radio frequency device 92 processes the received information and transmits the processed information through the antenna 91.

The method performed by the network side device in the above embodiment may be implemented in the baseband apparatus 93, and the baseband apparatus 93 includes a baseband processor.

The baseband device 93 may, for example, comprise at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 12, where one chip, for example, a baseband processor, is connected to the memory 95 through a bus interface, so as to invoke a program in the memory 95 to perform the network device operation shown in the above method embodiment.

The network-side device may also include a network interface 96, such as a common public radio interface (common public radio interface, CPRI).

Specifically, the network side device 900 according to the embodiment of the present application further includes instructions or programs stored in the memory 95 and capable of running on the processor 94, and the processor 94 invokes the instructions or programs in the memory 95 to execute the method executed by each module shown in fig. 8 or fig. 9, so as to achieve the same technical effect, and thus, for avoiding repetition, the description is omitted herein.

The embodiment of the application also provides a readable storage medium, on which a program or an instruction is stored, which when executed by a processor, implements each process of the above method embodiment, and can achieve the same technical effects, and in order to avoid repetition, the description is omitted here.

Wherein the processor is a processor in the terminal described in the above embodiment. The readable storage medium includes computer readable storage medium such as computer readable memory ROM, random access memory RAM, magnetic or optical disk, etc. In some examples, the readable storage medium may be a non-transitory readable storage medium.

The embodiment of the application further provides a chip, which comprises a processor and a communication interface, wherein the communication interface is coupled with the processor, and the processor is used for running programs or instructions to realize the processes of the embodiment of the method, and can achieve the same technical effects, so that repetition is avoided, and the description is omitted here.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

The embodiments of the present application further provide a computer program/program product stored in a storage medium, where the computer program/program product is executed by at least one processor to implement each process of the above method embodiments, and achieve the same technical effects, and are not repeated herein.

The embodiment of the application also provides a wireless communication system, which comprises a terminal and network side equipment, wherein the terminal can be used for executing the steps of the communication method, and the network side equipment can be used for executing the steps of the communication method.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the description of the embodiments above, it will be apparent to those skilled in the art that the above-described example methods may be implemented by means of a computer software product plus a necessary general purpose hardware platform, but may also be implemented by hardware. The computer software product is stored on a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes instructions for causing a terminal or network side device to perform the methods according to the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms of embodiments may be made by those of ordinary skill in the art without departing from the spirit of the application and the scope of the claims, which fall within the protection of the present application.

Claims

1. A scheduling method, the method comprising:

the method comprises the steps that first equipment receives or sends a first channel based on first information, wherein at least one Transmission Block (TB) is borne on the first channel, the first equipment comprises a terminal or network side equipment, and the first information is used for configuring, activating or scheduling the first channel for transmission;

One of the all or part TBs is scheduled for transmission on a plurality of frequency domain units or groups of frequency domain units, the one TB including at least one TB portion, one of the TB portions being transmitted on one frequency domain unit or group of frequency domain units.

2. The method of claim 1, wherein one of the at least one TB portion comprises any one of a portion bit of the one TB, at least one code block CB of the one TB, at least one code block group CBG of the one TB;

Wherein one CBG comprises at least one CB.

3. The method of claim 1, wherein the at least one TB satisfies at least one of:

Each of the at least one TB corresponds to a hybrid automatic repeat request, HARQ, process;

Different ones of the at least one TB correspond to different HARQ processes;

4. The method of claim 1 wherein the one TB is partitioned according to a first rule;

wherein the first rule includes at least one of:

Dividing a TB including a cyclic redundancy check CRC;

dividing a TB which does not include CRC;

CB-dividing the TB comprising the CRC;

The division of the one TB is determined based on at least one of the number of the plurality of frequency domain units or frequency domain unit groups corresponding to the one TB, the number of PRBs allocated to the one TB on the corresponding plurality of frequency domain units or frequency domain unit groups, the number of symbols allocated to the one TB on the corresponding plurality of frequency domain units or frequency domain unit groups, the number of available resources allocated to the one TB on the corresponding plurality of frequency domain units or frequency domain unit groups, the modulation and coding strategy MCS order corresponding to the one TB on the corresponding plurality of frequency domain units or frequency domain unit groups, the number of transmission layers corresponding to the one TB on the corresponding plurality of frequency domain units or frequency domain unit groups;

Dividing the first indication information based on the first indication information of the network side equipment, wherein the first indication information is used for indicating at least one of the size of the TB part on each frequency domain unit or frequency domain unit group in a plurality of frequency domain units or frequency domain unit groups corresponding to one TB;

the number of the plurality of frequency domain units or the frequency domain unit groups corresponding to the one TB;

the one TB includes the number of TB sections.

5. The method of claim 4, wherein the TB including the CRC is CB partitioned, the partitioned CBs satisfying at least one of:

One CB of the divided CBs is transmitted on one frequency domain unit or a frequency domain unit group;

6. The method of claim 4, wherein the step of determining the position of the first electrode is performed,

The size of at least one TB portion corresponding to the one TB is related to the number of PRBs allocated on the frequency domain unit or group of frequency domain units corresponding to the at least one TB portion, wherein the partitioning of the one TB is determined based on the number of PRBs allocated on the corresponding plurality of frequency domain units or group of frequency domain units by the one TB

The size of at least one TB portion corresponding to the one TB is related to the number of symbols allocated on the frequency domain unit or group of frequency domain units corresponding to the at least one TB portion, wherein the partitioning of the one TB is determined based on the number of symbols allocated on the corresponding plurality of frequency domain units or group of frequency domain units by the one TB

The size of at least one TB portion corresponding to the one TB is related to the amount of available resources allocated on the frequency domain unit or group of frequency domain units corresponding to the at least one TB portion, wherein the partitioning of the one TB is determined based on the amount of available resources allocated on the one TB on the corresponding plurality of frequency domain units or group of frequency domain units, or

The size of at least one TB portion corresponding to the one TB is related to the MCS order corresponding to the frequency domain unit or the group of frequency domain units corresponding to the at least one TB portion, wherein the division of the one TB portion is determined based on the MCS orders corresponding to the plurality of frequency domain units or the group of frequency domain units corresponding to the one TB

The size of at least one TB portion corresponding to the one TB is related to the number of transmission layers corresponding to the frequency domain unit or the frequency domain unit group corresponding to the at least one TB portion, wherein the division of the one TB portion is determined based on the number of transmission layers corresponding to the plurality of frequency domain units or the frequency domain unit group corresponding to the one TB.

7. The method of claim 1, wherein the one TB satisfies at least one of:

the number of allocated PRBs of each frequency domain unit or frequency domain unit group in the plurality of frequency domain units or frequency domain unit groups corresponding to the one TB is the same or different or not the same;

the number of the allocated symbols of each frequency domain unit or frequency domain unit group in the plurality of frequency domain units or frequency domain unit groups corresponding to the one TB is the same or different or not the same;

The MCS order corresponding to each frequency domain unit or frequency domain unit group in the plurality of frequency domain units or frequency domain unit groups corresponding to the one TB is the same or different or not completely the same;

The number of transmission layers corresponding to each frequency domain unit or frequency domain unit group in the plurality of frequency domain units or frequency domain unit groups corresponding to the one TB is the same or different or not the same.

8. The method of claim 1, wherein the size of the one TB is determined based on a first parameter;

Wherein the first parameter comprises at least one of:

The bandwidth allocated by the one TB over a corresponding plurality or set of frequency domain units;

The number of symbols allocated by the one TB on a corresponding plurality of frequency domain units or frequency domain unit groups;

The MCS order of the one TB on a corresponding plurality of frequency domain units or frequency domain unit groups;

the one TB demodulates the number of symbols occupied by the reference signal DMRS on a plurality of corresponding frequency domain units or frequency domain unit groups;

The number of resource elements RE allocated by the one TB over a corresponding plurality of frequency domain elements or groups of frequency domain elements;

the one TB controls the expenditure of signaling on a plurality of corresponding frequency domain units or frequency domain unit groups;

the one TB corresponds to the number of transmission layers on a corresponding plurality of frequency domain units or frequency domain unit groups.

9. The method of any of claims 1-4, wherein the transmission of the at least one TB portion comprises at least one of:

each of the at least one TB portion is separately CRC scrambled;

10. The method of claim 9, wherein the rate matching of the TB portions on each frequency domain unit corresponding to the at least one TB portion comprises:

A first TB portion on a first frequency domain unit is rate matched based on a second parameter of the first frequency domain unit;

Wherein the first frequency domain unit is one frequency domain unit of the plurality of frequency domain units;

The second parameter includes at least one of available resources allocated by the first TB portion in the first frequency domain unit, a number of PRBs allocated by the first TB portion in the first frequency domain unit, a number of symbols allocated by the first TB portion in the first frequency domain unit, an MCS order corresponding to the first TB portion in the first frequency domain unit, a number of transmission layers corresponding to the first TB portion in the first frequency domain unit, a number of symbols occupied by a DMRS of the first TB portion in the first frequency domain unit, and an overhead of control signaling of the first TB portion in the first frequency domain unit.

11. The method of claim 9, wherein the rate matching of the TB portions on each frequency domain unit group corresponding to the at least one TB portion comprises:

The second TB portion on the first frequency domain unit set is rate matched based on a third parameter of the first frequency domain unit set;

Wherein the first frequency domain unit group is one frequency domain unit group of the plurality of frequency domain unit groups;

The third parameter includes at least one of available resources allocated by the second TB section in the first frequency domain unit group, a number of PRBs allocated by the second TB section in the first frequency domain unit group, a number of symbols allocated by the second TB section in the first frequency domain unit group, an MCS order corresponding to the second TB section in the first frequency domain unit group, a number of transmission layers corresponding to the second TB section in the first frequency domain unit group, a number of symbols occupied by DMRS of the first TB section in the first frequency domain unit group, and an overhead of control signaling of the first TB section in the first frequency domain unit group.

12. The method of claim 1, wherein the first device is the terminal, wherein the first device transmits the first channel based on the first information, comprising:

The first device retransmits a third TB section based on the first information and second indication information from the network side device, wherein the third TB section is at least one TB section in the one TB, the second indication information is used for indicating the terminal to retransmit the third TB section, or the second indication information contains feedback information of at least one TB section in the one TB.

13. The method of claim 12, wherein the retransmitting the third TB portion comprises:

the terminal retransmits the third TB part according to a first mode;

Wherein the first mode comprises any one of the following:

retransmitting a TB part of the retransmission indicated by the network side equipment;

retransmitting a retransmitted TB part indicated by the terminal;

14. The method of claim 12, wherein the retransmitting the third TB portion comprises:

And if the second indication information comprises the feedback information, the terminal retransmits at least one TB part of which the feedback information is NACK.

15. The method of any one of claims 12 to 14, wherein the second indication information is used to indicate at least one of a retransmitted TB section, a frequency domain unit corresponding to the retransmitted TB section, and a set of frequency domain units corresponding to the retransmitted TB section.

16. The method of claim 12, wherein the first information is used to schedule the terminal to retransmit the third TB portion on a first set of frequency domain units;

Wherein the first set of frequency domain units comprises any one of:

all or part of the set of frequency domain elements for initially transmitting the third TB portion.

17. The method of claim 12, wherein the frequency domain unit used to retransmit the third TB portion is the same as, different from, or not the same as, the frequency domain unit used to retransmit the third TB portion.

18. The method of claim 12, wherein the retransmitting the third TB portion comprises:

The terminal retransmits the third TB section in a second manner, the second manner including at least one of:

The division of the third TB part is the same as the corresponding TB part division in the initial transmission of one TB;

The third TB part and the corresponding TB part in the initial transmission of the one TB contain the same bit information or CB or CBG;

each of the third TB portions not desired by the terminal to be divided into different TB portions at the time of retransmission;

The terminal determines the third TB part of retransmission according to the division of the TB part in the initial transmission;

When retransmitting the third TB part, the frequency domain unit or the frequency domain unit group corresponding to the third TB part is not divided;

and dividing the third TB part according to the frequency domain unit or the frequency domain unit group scheduled by the third TB part when retransmitting the third TB part by the terminal.

19. The method of claim 1, wherein the first device is the terminal, wherein the first device receives the first channel based on the first information, comprising:

The first device receives a fourth TB section based on the first information and third indication information from the network side device, where the fourth TB section is at least one TB section in the one TB, and the third indication information is used to indicate the terminal to receive the fourth TB section.

20. The method of claim 19, wherein the fourth TB section comprises at least one of:

A retransmitted TB part indicated by the network side equipment;

And the network side equipment indicates the TB part on the retransmitted frequency domain unit group.

21. The method of claim 19 or 20, wherein the third indication information is used to indicate at least one of a retransmitted TB section, a frequency domain unit corresponding to the retransmitted TB section, and a frequency domain unit group corresponding to the retransmitted TB section.

22. The method of claim 19, wherein the first information is used to schedule the terminal to receive the fourth TB portion on a second set of frequency domain units;

wherein the second set of frequency domain units comprises any one of:

all or part of the set of frequency domain elements for initially transmitting the fourth TB portion.

23. The method of claim 19, wherein the set of frequency domain units used to retransmit the fourth TB portion is the same as, different from, or not the same as, the set of frequency domain units used to initially transmit the fourth TB portion.

24. The method of claim 19, wherein the receiving the fourth TB section comprises:

the terminal receives the fourth TB section according to a third mode including at least one of:

the fourth TB part and the corresponding TB part in the initial transmission of the one TB contain the same bit information or CB or CBG;

Each of the fourth TB portions not desired by the terminal to be divided into different TB portions at the time of retransmission;

determining the fourth TB part received according to the division of the TB part at the initial transmission time;

When retransmitting the fourth TB part, the method does not divide based on a frequency domain unit or a frequency domain unit group corresponding to the fourth TB part;

and dividing the fourth TB part according to the scheduled frequency domain unit or the frequency domain unit group of the fourth TB part when retransmitting the fourth TB part.

25. The method of claim 1, wherein the first device, based on the first information, after receiving the first channel, the method further comprises:

the first device feeding back the at least one TB according to a fourth mode;

wherein the fourth aspect comprises any one of the following:

feedback is performed for each TB segment;

Feedback is carried out on the TB part on each frequency domain unit;

Feedback is performed for the TB portion on each frequency domain unit group.

26. The method of claim 25 wherein the number of bits of feedback information corresponding to the one TB feedback is related to at least one of:

the number of TB portions that the one TB contains;

27. The method of claim 26, wherein the first number comprises any one of:

The network side equipment configuration or predefined rules determine or the maximum number of TB parts contained in one TB reported by the terminal;

The network side equipment configuration or predefined rules determine or the maximum number of frequency domain units corresponding to one TB reported by the terminal;

and the network side equipment configuration or the predefined rule determines or the maximum number of frequency domain unit groups corresponding to one TB reported by the terminal.

28. The method of claim 26 or 27, wherein said feeding back the at least one TB according to the fourth aspect comprises:

for bits without corresponding TB portions, the first device feeds back a negative acknowledgement, NACK, wherein the number of TB portions that the one TB contains is less than the first number;

for the bits without corresponding frequency domain units, the first device feeds back NACK, wherein the number of the frequency domain units corresponding to the one TB is smaller than the first number;

And for the bits without corresponding frequency domain unit groups, the first device feeds back NACK, wherein the number of the frequency domain unit groups corresponding to the one TB is smaller than the first number.

29. A transmission device is characterized by comprising a processing module;

The processing module is configured to receive or send a first channel based on first information, where the first channel carries at least one TB, and the first device includes a terminal or a network side device, where the first information is used to configure, activate, or schedule transmission of the first channel;

30. The apparatus of claim 29, wherein the first device is the terminal, wherein the processing module is configured to retransmit a third TB portion, the third TB portion being at least one of the one TBs, based on the first information and second indication information from the network side device, the second indication information being configured to instruct the terminal to retransmit the third TB portion, or wherein the second indication information includes feedback information of the at least one of the one TBs.

31. The apparatus according to claim 30, wherein the processing module is configured to retransmit the third TB portion according to a first mode;

Wherein the first mode comprises any one of the following:

retransmitting a retransmitted TB part indicated by the terminal;

32. The apparatus according to claim 30, wherein the processing module is configured to retransmit for at least one TB portion for which the feedback information is a NACK, in particular, if the second indication information includes the feedback information.

33. The apparatus according to claim 30, wherein the processing module is configured to retransmit the third TB portion in a second manner, the second manner comprising at least one of:

34. The apparatus according to claim 29, wherein the processing module is configured to receive a fourth TB segment, the fourth TB segment being at least one of the one TBs, based on the first information and third indication information from the network side device, the third indication information being used to indicate that the terminal receives the fourth TB segment.

35. The apparatus of claim 34, wherein the processing module is configured to receive the fourth TB section in a third manner, the third manner comprising at least one of:

36. The apparatus of claim 29, further comprising a feedback module;

The feedback module is configured to perform feedback on the at least one TB according to a fourth aspect after the processing module receives the first channel based on the first information;

wherein the fourth aspect comprises any one of the following:

feedback is performed for each TB segment;

Feedback is carried out on the TB part on each frequency domain unit;

Feedback is performed for the TB portion on each frequency domain unit group.

37. The apparatus of claim 36, wherein the number of bits of feedback information corresponding to the one TB feedback is related to at least one of:

the number of TB portions that the one TB contains;

38. The apparatus of claim 37, wherein the first number comprises any one of:

39. The apparatus according to claim 37 or 38, wherein the feedback module is specifically configured to:

for bits without corresponding TB portions, feeding back a NACK, wherein the one TB contains a number of TB portions less than the first number;

For bits without corresponding frequency domain units, feeding back NACK, wherein the number of the frequency domain units corresponding to the one TB is smaller than the first number;

And feeding back NACK for the bits without corresponding frequency domain unit groups, wherein the number of the frequency domain unit groups corresponding to the one TB is smaller than the first number.

40. A first device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the transmission method of any one of claims 1 to 28.

41. A readable storage medium, characterized in that the readable storage medium has stored thereon a program or instructions which, when executed by a processor, implement the steps of the transmission method according to any of claims 1 to 28.