CN114390543A

CN114390543A - Data channel transmission method and related product

Info

Publication number: CN114390543A
Application number: CN202011111767.3A
Authority: CN
Inventors: 周欢
Original assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Current assignee: Beijing Ziguang Zhanrui Communication Technology Co Ltd
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2022-04-22
Anticipated expiration: 2040-10-16
Also published as: CN114390543B

Abstract

The embodiment of the application discloses a data channel transmission method and a related product, wherein the data channel transmission method comprises the following steps: the terminal transmits a data channel on the first time domain resource; wherein a single transport block of the data channel is mapped to a plurality of transmission units on the first time domain resource, the plurality of transmission units having a time slot as a basic time unit. The embodiment of the application is beneficial to reducing the complexity of the transmission processing of the terminal.

Description

Data channel transmission method and related product

Technical Field

The present application relates to the field of communications technologies, and in particular, to a data channel transmission method and a related product.

Background

Currently, in time domain resource allocation for data channel transmission, mapping of a single Transport Block (TB) of a data channel is limited to one slot. For a high frequency band, such as a frequency band above 52.6GHz, since a larger subcarrier interval or more beams are used, a slot time is short, and if TB mapping is limited to a slot, complexity of terminal processing may be increased.

Disclosure of Invention

The embodiment of the application provides a data channel transmission method and a related product, so as to reduce the complexity of transmission processing of a terminal.

In a first aspect, an embodiment of the present application provides a data channel transmission method, including:

the terminal transmits a data channel on the first time domain resource; wherein a single transport block of the data channel is mapped to a plurality of transmission units on the first time domain resource, the plurality of transmission units having a time slot as a basic time unit.

In a second aspect, an embodiment of the present application provides a data channel transmission method, including:

the network equipment receives a data channel transmitted by a terminal on a first time domain resource; wherein a single transport block of the data channel is mapped to a plurality of transmission units on the first time domain resource, the plurality of transmission units having a time slot as a basic time unit.

In a third aspect, an embodiment of the present application provides a data channel transmission apparatus, including:

a transmission unit, configured to transmit a data channel on a first time domain resource by a terminal; wherein a single transport block of the data channel is mapped to a plurality of transmission units on the first time domain resource, the plurality of transmission units having a time slot as a basic time unit.

In a fourth aspect, a data channel transmission apparatus includes:

a receiving unit, configured to receive, by a network device, a data channel transmitted by a terminal on a first time domain resource; wherein a single transport block of the data channel is mapped to a plurality of transmission units on the first time domain resource, the plurality of transmission units having a time slot as a basic time unit.

In a fifth aspect, embodiments of the present application provide a terminal, comprising a processor, a memory, a communication interface, and one or more programs, stored in the memory and configured to be executed by the processor, the programs including instructions for performing the steps in the first aspect of embodiments of the present application.

In a sixth aspect, embodiments of the present application provide a network device, comprising a processor, a memory, a communication interface, and one or more programs, stored in the memory and configured to be executed by the processor, the programs including instructions for performing the steps of the second aspect of the present application.

In a seventh aspect, an embodiment of the present application provides a computer storage medium, which is characterized by storing a computer program for electronic data exchange, wherein the computer program causes a computer to execute some or all of the steps described in the first aspect or the second aspect of the present embodiment.

In an eighth aspect, embodiments of the present application provide a computer program product, where the computer program product includes a non-transitory computer-readable storage medium storing a computer program, where the computer program is operable to cause a computer to perform some or all of the steps as described in the first or second aspects of embodiments of the present application. The computer program product may be a software installation package.

In the embodiment of the present application, a terminal transmits a data channel on a first time domain resource, and correspondingly, a network device receives the data channel transmitted by the terminal on the first time domain resource, where a single transmission block of the data channel is mapped to multiple transmission units on the first time domain resource, and the multiple transmission units use a time slot as a basic time unit.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1A is a schematic diagram of an architecture of an example communication system provided in an embodiment of the present application;

fig. 1B is a schematic structural diagram of a terminal according to an embodiment of the present application;

fig. 2A is a schematic flowchart of a data channel transmission method according to an embodiment of the present application;

fig. 2B is a schematic diagram of a time domain resource configuration according to an embodiment of the present application;

fig. 2C is a schematic diagram of a time domain resource allocation table according to an embodiment of the present application;

fig. 2D is a schematic diagram of another time domain resource configuration provided in an embodiment of the present application;

fig. 2E is a schematic diagram of another time domain resource allocation table provided in the embodiment of the present application;

fig. 2F is a schematic diagram of another time domain resource configuration provided in an embodiment of the present application;

fig. 2G is a schematic diagram of another time domain resource allocation table provided in the embodiment of the present application;

fig. 2H is a schematic diagram of another time domain resource configuration provided in an embodiment of the present application;

fig. 2I is a schematic diagram of another time domain resource allocation table provided in the embodiment of the present application;

fig. 2J is a schematic diagram of another time domain resource allocation table provided in the embodiment of the present application;

fig. 3A is a block diagram illustrating functional units of a data channel transmission apparatus according to an embodiment of the present disclosure;

fig. 3B is a block diagram of functional units of another data channel transmission apparatus according to an embodiment of the present disclosure;

fig. 4A is a block diagram of functional units of another data channel transmission apparatus according to an embodiment of the present disclosure;

fig. 4B is a block diagram of functional units of another data channel transmission apparatus according to an embodiment of the present disclosure.

Detailed Description

In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "first," "second," and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The embodiments of the present application will be described below with reference to the drawings.

The technical solution of the embodiment of the present application may be applied to the example communication system 100 shown in fig. 1A, where the example communication system 100 includes a terminal 110 and a network device 120, and the terminal 110 is communicatively connected to the network device 120.

The example communication system 100 may be, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long Term Evolution (Long Term Evolution, LTE) System, an Advanced Long Term Evolution (LTE-a) System, a New Radio (NR) System, an Evolution System of an NR System, an LTE (LTE-based Access to unlicensed spectrum, LTE-U) System on unlicensed spectrum, an NR (NR-based Access to unlicensed spectrum) System on unlicensed spectrum, a UMTS (Universal Mobile telecommunications System), or other next generation communication systems.

Generally, conventional Communication systems support a limited number of connections and are easy to implement, however, with the development of Communication technology, mobile Communication systems will support not only conventional Communication, but also, for example, Device-to-Device (D2D) Communication, Machine-to-Machine (M2M) Communication, Machine Type Communication (MTC), and Vehicle-to-Vehicle (V2V) Communication, and the embodiments of the present application can also be applied to these Communication systems. Optionally, the communication system in the embodiment of the present application may be applied to a Carrier Aggregation (CA) scenario, may also be applied to a Dual Connectivity (DC) scenario, and may also be applied to an independent (SA) networking scenario.

The frequency spectrum of the application is not limited in the embodiment of the present application. For example, the embodiments of the present application may be applied to a licensed spectrum and may also be applied to an unlicensed spectrum.

A terminal 110 in the embodiments of the present application may refer to a user equipment, an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user device. The terminal may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a relay device, a vehicle-mounted device, a wearable device, a terminal in a future 5G network or a terminal in a future evolved Public Land Mobile Network (PLMN), and the like, which are not limited in this embodiment. As shown in fig. 1B, the terminal 110 in the terminal according to the embodiment of the present disclosure may include one or more of the following components: the device comprises a processor 110, a memory 120 and an input-output device 130, wherein the processor 110 is respectively connected with the memory 120 and the input-output device 130 in a communication mode.

The network device 120 in this embodiment may be a device for communicating with a terminal, where the network device may be an evolved NodeB (eNB or eNodeB) in an LTE system, and may also be a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or the network device may be a relay device, an access point, a vehicle-mounted device, a wearable device, and a network device in a future 5G network or a network device in a future evolved PLMN network, one or a group (including multiple antenna panels) of base stations in a 5G system, or may also be a network node forming a gNB or a transmission point, such as a baseband unit (BBU) or a Distributed Unit (DU), and the present embodiment is not limited.

In some deployments, the gNB may include a Centralized Unit (CU) and a DU. The gNB may also include an Active Antenna Unit (AAU). The CU implements part of the function of the gNB and the DU implements part of the function of the gNB. For example, the CU is responsible for processing non-real-time protocols and services, and implementing functions of a Radio Resource Control (RRC) layer and a Packet Data Convergence Protocol (PDCP) layer. The DU is responsible for processing a physical layer protocol and a real-time service, and implements functions of a Radio Link Control (RLC) layer, a Medium Access Control (MAC) layer, and a Physical (PHY) layer. The AAU implements part of the physical layer processing functions, radio frequency processing and active antenna related functions. Since the information of the RRC layer eventually becomes or is converted from the information of the PHY layer, the higher layer signaling, such as the RRC layer signaling, may also be considered to be transmitted by the DU or by the DU + AAU under this architecture. It is to be understood that the network device may be a device comprising one or more of a CU node, a DU node, an AAU node. In addition, the CU may be divided into network devices in an access network (RAN), or may be divided into network devices in a Core Network (CN), which is not limited in this application.

In the embodiment of the present application, the terminal 110 or the network device 120 includes a hardware layer, an operating system layer running on top of the hardware layer, and an application layer running on top of the operating system layer. The hardware layer includes hardware such as a Central Processing Unit (CPU), a Memory Management Unit (MMU), and a memory (also referred to as a main memory). The operating system may be any one or more computer operating systems that implement business processing through processes (processes), such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. The application layer comprises applications such as a browser, an address list, word processing software, instant messaging software and the like. Furthermore, the embodiment of the present application does not particularly limit the specific structure of the execution main body of the method provided by the embodiment of the present application, as long as the communication can be performed according to the method provided by the embodiment of the present application by running the program recorded with the code of the method provided by the embodiment of the present application, for example, the execution main body of the method provided by the embodiment of the present application may be a terminal, or a functional module in the terminal that can call the program and execute the program.

The definitions or explanations of the concepts and terms referred to in this application are as follows.

Formats of Downlink Control Information (DCI) for a scheduling data Channel, for example, a Physical Uplink Shared Channel (PUSCH)/Physical Downlink Shared Channel (PDSCH) in a New Radio interface (NR) system include DCI format 0_0/0_1/0_2 and DCI format 1_0/1_1/1_ 2. All DCI formats contain time domain resource allocation information which is used for informing a terminal of the time domain resource position of the PUSCH/PDSCH used by the terminal.

The DCI may indicate a row index pointing to a terminal time domain Resource dedicated table, provide an Orthogonal Frequency Division Multiplexing (OFDM) symbol for PUSCH/PDSCH transmission, include a starting position S of a starting OFDM symbol and an allocated OFDM symbol length L (one way is to indicate S and L by a SLIV Value after performing joint Resource Indication Value (RIV) coding on S and L, and the other way is to configure S and L respectively), provide DCI and a slot offset K for transmitting a PUSCH/PDSCH, and provide a mapping Type a or Type B of the PUSCH/PDSCH. The starting positions and lengths of symbols allowed to be adopted by the PUSCH under different mapping types are shown in table 1 below, where table 1 is an effective S and L combination table.

TABLE 1

While the slot of the next slot of the conventional cyclic prefix includes 14 symbols, and the slot of the next slot of the extended cyclic prefix includes 12 symbols, that is, mapping of a single transmission block of the current data channel is limited in one slot, for a high frequency band, such as a frequency band above 52.6GHz, since a larger subcarrier interval or more beams are used, the time of one slot is very short, and if TB mapping is limited in one slot, the complexity of transmission processing performed by the terminal is increased.

In view of the above problem, an embodiment of the present application provides a data channel transmission method, which is described in detail below with reference to the accompanying drawings.

Referring to fig. 2A, fig. 2A is a schematic flowchart of a data channel transmission method according to an embodiment of the present application, where as shown in the figure, the data channel transmission method includes:

in step 201, the terminal transmits a data channel on a first time domain resource.

In step 202, the network device receives a data channel transmitted by the terminal on the first time domain resource.

Wherein a single transport block of the data channel is mapped to a plurality of transmission units on the first time domain resource, the plurality of transmission units having a time slot as a basic time unit.

The transmission unit takes a time slot as a basic time unit, that is, one transmission unit corresponds to one time slot, and a single transmission block of a further data channel is mapped to a plurality of time slots on the first time domain resource.

In one possible example, the downlink control information for instructing the terminal to transmit the data channel on the first time domain resource includes: a first mapping relationship between a single TB of the data channel and a plurality of transmission units, or the downlink control information includes: a second mapping of multiple TBs of the data channel to different transmission units.

The downlink control information may be sent to the terminal by the network device before the terminal transmits the data channel on the first time domain resource.

In a specific implementation, one piece of downlink control information includes a first mapping relationship between a single TB of a data channel and multiple transmission units, that is, when a terminal is supported to transmit the data channel, one TB is mapped to multiple slots. Compared with the method for limiting the TB mapping in one time slot, the method is beneficial to reducing the complexity of transmission processing of the terminal.

One downlink control information includes a second mapping relation indicating that multiple transport blocks are mapped to different transport units, that is, one downlink control information includes continuous resource mapping in which multiple TBs are mapped to different transport units, and a terminal receives one downlink control information to obtain the mapping relation between the multiple TBs and the transport units.

In a specific implementation, data transmission of the unlicensed spectrum requires a listen-before-talk (LBT) listening mechanism. One downlink control information includes a plurality of TBs mapped to different transmission units, which is beneficial to reducing the monitoring density of the downlink control information, and further beneficial to reducing the complexity of sending the downlink control information by the network device and monitoring the downlink control information by the terminal.

As can be seen, in this example, the downlink control information for instructing the terminal to transmit the data channel on the first time domain resource includes: a first mapping relationship between a single TB of a data channel and a plurality of transmission units, or the downlink control information includes: the second mapping relationship between the multiple TBs of the data channel and different transmission units is beneficial to reducing the complexity of transmission processing performed by the terminal, or is beneficial to reducing the monitoring density of the downlink control information.

In one possible example, the first mapping relationship or the second mapping relationship includes configuration information for at least one of: the initial transmission unit position, the transmission unit length, the downlink control information of the data channel and the offset of the transmission unit group at the initial position of the data channel.

In a specific implementation, the first mapping relationship and the second mapping relationship may both include configuration information for the initial transmission unit position of the data channel, the length of the transmission unit, the downlink control information, and the offset of the transmission unit group at the initial position of the data channel. That is, in time domain resource scheduling, the transmission length is scheduled by integer multiple transmission units, and the granularity of time domain resource scheduling, i.e. the basic unit, is larger than the symbol length configured in time domain resource allocation, and is not limited to one time slot; the initial transmission position and the offset are also scheduled by integer multiples of transmission units, and the granularity of time domain resource scheduling, namely, the basic unit is larger relative to the initial symbol position configured in the time domain resource allocation, the interval of the downlink control information and the transmission units of the data channel.

It can be seen that, in this example, the first mapping relationship or the second mapping relationship includes configuration information for at least one of the following information: the initial transmission unit position, the transmission unit length, the downlink control information of the data channel and the offset of the transmission unit group at the initial position of the data channel are beneficial to reducing the complexity of the transmission processing of the terminal.

In one possible example, the transmission unit group includes Q transmission units, Q being an integer of 1 or more, the starting transmission unit position and the transmission unit length are in a basic unit of 1 transmission unit, and the offset is in a basic unit of the Q transmission units.

In a specific implementation, the starting transmission unit position and the transmission unit length are based on 1 transmission unit, that is, the values of the starting transmission unit position and the transmission unit length are integer multiples of the transmission unit, the starting first transmission unit position and the ending last transmission unit position do not fall within a single time slot, that is, the first transmission unit and the last transmission unit are not scheduled at a symbol level. The offset uses Q transmission units as basic units, that is, the offset uses one unit group as basic unit, when the unit group only includes one transmission unit, the offset basic unit is one transmission unit, and the offset basic scheduling units are integer multiple transmission units no matter what Q is used.

Calculating the offset value as K, the transmission unit where the end position of the downlink control information is located as n, the position of the initial transmission unit as S and the length of the transmission unit as L; the offset K is the offset of the unit group, the basic unit of the offset K is Q transmission units, namely, the offset has a value of 1, and the offset K corresponds to one transmission unit group, namely, Q transmission units; indicating that the index of the initial transmission unit group of the scheduled data channel transmission is n + qxk, that is, the transmission unit group where the initial position of the data channel is located is spaced from the transmission unit where the end position of the downlink control information is located by K transmission unit groups, that is, Q xk transmission units; the starting transmission unit index is n + qxk + S, i.e., the starting transmission unit is located at the n + qxk + S-th transmission unit.

For example, referring to fig. 2B and fig. 2C, fig. 2B is a schematic diagram of a time domain resource allocation provided in the embodiment of the present application, and correspondingly, fig. 2C is a schematic diagram of a time domain resource allocation table provided in the embodiment of the present application, in practical application, the time domain resource allocation table may further include other configuration information, and only part of the configuration information related in the embodiment of the present application is exemplarily shown in the diagram.

Taking an example that one transmission unit, i.e., one slot, includes 14 symbols, Q is 3, i.e., 3 transmission units are 1 transmission unit group, when the index indicating the time domain resource configuration information in fig. 2C is 0, the corresponding offset is 0, the start position is 1, and the length is 2; when the index is 1, the corresponding offset is 1, the start position is 0, and the length is 2.

Corresponding to fig. 2B, the portion shown in fig. 1 is a time domain resource location of the downlink control information, where the transmission unit is n, a corresponds to one symbol, B corresponds to one transmission unit, and c corresponds to one transmission unit group. When index is 0, it is the part shown in 2a in fig. 2B, and the corresponding offset in the table is zero, that is, the transmission unit group where the initial transmission unit is located is separated from the transmission unit n by zero transmission units, the transmission unit group includes the transmission unit n and two adjacent transmission units after the transmission unit n, and the position of the initial transmission unit is 1, that is, the initial transmission unit is the second transmission unit in the transmission unit group, and the length of the transmission unit is 2, that is, the length of the transmission unit is two transmission units; when index is 1, the corresponding offset in the table is 1, that is, the transmission unit group where the starting transmission unit is located is separated from the transmission unit n by 1 transmission unit group (i.e., 3 transmission units), the position of the starting transmission unit is 0, that is, the starting transmission unit is the first transmission unit in the group, and the length of the transmission unit is 2, which corresponds to the portion shown in fig. 3 a.

Furthermore, the starting transmission unit position may be interpreted as a starting transmission unit offset K01, Q having a value of 1, offset K00, with a basic unit of 1 transmission unit, indicating a starting transmission unit group index of n + K00+ K01 for scheduled data channel transmissions, i.e. one transmission unit, i.e. a starting transmission unit index of n + K00+ K01, since Q is 1.

In this example, the transmission unit group includes Q transmission units Q being integers greater than or equal to 1, the starting transmission unit position and the transmission unit length use 1 transmission unit as a basic unit, and the offset uses Q transmission units as a basic unit, which is beneficial to reducing the complexity of the transmission processing performed by the terminal.

In one possible example, the value of the starting transmission unit position is within the Q range.

In a specific implementation, the starting transmission unit position needs to be limited within the range of Q transmission units, and the transmission unit length does not need to be limited within the range of Q transmission units.

In addition, the length of the transmission unitThe maximum length can be configured by higher layer signalling, e.g. by configuring a maximum length L_maxThe length of the transmission unit is L_maxIndicating within the range.

It can be seen that, in this example, the value of the starting transmission unit position is within the Q range, which is beneficial to reducing the complexity of the transmission processing performed by the terminal.

In one possible example, the first mapping relationship or the second mapping relationship includes configuration information for at least one of: the initial transmission symbol position of the data channel, the transmission unit length, the downlink control information, and the offset of the transmission unit group at the initial position of the data channel are determined, where the transmission unit group includes N transmission units, N is an integer greater than or equal to 1, the initial transmission symbol position uses 1 symbol as a basic unit, the transmission unit length uses 1 transmission unit as a basic unit, and the offset uses the N transmission units as a basic unit.

In a specific implementation, the first mapping relationship and the second mapping relationship may both include configuration information of offsets of transmission unit groups for a data channel start transmission symbol position, a transmission unit length, downlink control information, and a data channel start position. That is, in time domain resource scheduling, transmission length is scheduled by integer multiple transmission units, and the granularity of time domain resource scheduling, i.e., the basic unit, is larger than the symbol length configured in time domain resource allocation, and is not limited to one time slot.

The starting transmission symbol position is based on 1 symbol, and the transmission unit length is based on 1 transmission unit, i.e. the starting first transmission unit position may fall within a single time slot, i.e. the first transmission unit may be scheduled at the symbol level.

It can be seen that, in this example, the first mapping relationship or the second mapping relationship includes configuration information for at least one of the following information: the initial transmission symbol position, the transmission unit length, the downlink control information of the data channel and the offset of the transmission unit group at the initial position of the data channel are beneficial to reducing the complexity of the transmission processing of the terminal.

In one possible example, the first mapping relationship or the second mapping relationship further includes configuration information for: an end transmission symbol position, the end transmission symbol position having 1 symbol as a basic unit.

In a specific implementation, the ending symbol position is based on 1 symbol, that is, the position of the ending last transmission unit may fall within a single slot, that is, the last transmission unit may also be scheduled at the symbol level.

For example, referring to fig. 2D and fig. 2E, fig. 2D is a schematic diagram of another time domain resource configuration provided in the embodiment of the present application, and correspondingly, fig. 2E is a schematic diagram of another time domain resource allocation table provided in the embodiment of the present application.

As can be seen from the table in fig. 2E, when index is 0, the corresponding offset is 0, the start position is 9, and the length is 2, and the basic unit of the start position is 1 symbol, and the basic unit of the length is 1 transmission unit, which corresponds to the portion shown as 2b in fig. 2D. In fig. 2D, the portion shown in fig. 1 is a time domain resource location of the downlink control information, and the transmission unit where the downlink control information is located is n.

In one possible example, the first mapping relationship or the second mapping relationship includes configuration information for at least one of: the starting sub-transmission unit position, the sub-transmission unit length, the downlink control information of the data channel and the offset of the transmission unit group of the starting position of the data channel are determined, wherein the transmission unit group comprises P transmission units, P is an integer greater than or equal to 1, the starting sub-transmission unit position and the sub-transmission unit length take 1 sub-transmission unit as a unit, and the offset takes the P transmission units as a basic unit; one of the transmission units includes a plurality of sub-transmission units, each of which includes the same number of symbols.

In a specific implementation, the first mapping relationship and the second mapping relationship may both include configuration information for a starting sub-transmission unit position of the data channel, a sub-transmission unit length, downlink control information, and an offset of a transmission unit group at the starting position of the data channel. One transmission unit may be equally divided into a plurality of sub-transmission units, for example, one transmission unit includes two transmission sub-units, and the number of symbols corresponding to the two transmission sub-units is half of that of one transmission unit.

For example, referring to fig. 2F and fig. 2G, fig. 2F is a schematic diagram of another time domain resource configuration provided in the embodiment of the present application, and correspondingly, fig. 2G is a schematic diagram of another time domain resource allocation table provided in the embodiment of the present application.

In fig. 2F, a portion shown in fig. 1 is a time domain resource location of downlink control information, where a transmission unit is n, and one transmission unit includes two sub-transmission units, and each sub-transmission unit includes 7 symbols. As can be seen from the table in fig. 2G, when index is 0, the corresponding offset is 0, the start position is 1, the length is 3, and the basic unit of the start position and the length is 1 sub-transmission unit, which corresponds to the portion shown as 2c in fig. 2F.

It can be seen that, in this example, the first mapping relationship or the second mapping relationship includes configuration information for at least one of the following information: the initial sub-transmission unit position, the sub-transmission unit length, the downlink control information of the data channel and the offset of the transmission unit group at the initial position of the data channel are beneficial to reducing the complexity of the transmission processing of the terminal.

In a possible example, the Q, the N, and the P are configured by a higher layer signaling, or information indicating values of the Q, the N, and the P is included in the downlink control information.

In a specific implementation, in the case that the information indicating the value of Q, N, P is included in the downlink control information, the time domain resource allocation table may be jointly encoded with other information, that is, the information that can be used to indicate the value of Q, N, P in the voluntary allocation table may begin.

For example, referring to fig. 2H and fig. 2I, fig. 2H is a schematic diagram of another time domain resource allocation provided in the embodiment of the present application, and correspondingly, fig. 2I is a schematic diagram of another time domain resource allocation table provided in the embodiment of the present application.

Take the basic unit of the starting position and the length as 1 sub-transmission unit, and the basic unit of the offset as Q transmission units as an example. As shown in fig. 2I, the time domain resource allocation table includes information indicating a value of Q, and as can be seen from the table in fig. 2I, when index is 0, the corresponding offset is 0, the start position is 1, the length is 2, and Q is 3, that is, the basic unit of offset is 3 transmission units, which corresponds to the portion shown as 2d in fig. 2H. When index is 1, the corresponding offset is 1, the start position is 1, the length is 2, Q is 4, i.e., the basic unit of offset is 4 transmission units, which corresponds to the portion shown as 3b in fig. 2H. In fig. 2H, the portion shown in fig. 1 is a time domain resource location of the downlink control information, and the transmission unit where the downlink control information is located is n.

It can be seen that Q, N, P is configured by higher layer signaling in this example, or information indicating a value of Q, N, P is included in the downlink control information, Q, N, P can be determined by various ways, which is beneficial to improve flexibility of determination of Q, N, P.

In a possible example, the first mapping relation and the second mapping relation respectively correspond to different time domain resource allocation tables, and the downlink control information includes: the first indication information is used for indicating a first time domain resource allocation table corresponding to the downlink control information, and the different time domain resource allocation tables include the first time domain resource allocation table.

In a specific implementation, different mapping relationships respectively correspond to different time domain resource allocation tables, in order to distinguish the different mapping relationships, the downlink control information may be indicated by first indication information, for example, the first mapping relationship corresponding table a and the second mapping relationship corresponding table b, which table of the downlink control information corresponding table a and the table b may be indicated by 1-bit information in the downlink control information, the table indicated by the first information is the first time domain resource allocation table, and which mapping relationship is indicated may be further determined by the time domain resource allocation table.

As can be seen, in this example, the first mapping relationship and the second mapping relationship respectively correspond to different time domain resource allocation tables, and the downlink control information includes: the first indication information is used for indicating a first time domain resource allocation table corresponding to the downlink control information, different time domain resource allocation tables comprise the first time domain resource allocation table, the first time domain resource allocation table corresponding to the downlink control information is indicated through the first indication information in the downlink control information, and corresponding relations exist between different time domain resource allocation tables and different mapping relations, so that convenience in indicating the mapping relations is improved.

In a possible example, the first mapping relationship and the second mapping relationship correspond to the same time domain resource allocation table, the time domain resource allocation table includes second indication information, the second indication information is used to indicate that downlink control information corresponding to the second indication information includes a third mapping relationship, and the first mapping relationship and the second mapping relationship include the third mapping relationship.

In a specific implementation, different mapping relationships may use the same table, and the corresponding mapping relationship may be indicated by second indication information in the table, for example, the table may include a "mapping relationship" column, and information in the column is used to indicate the corresponding mapping relationship.

Specifically, the second indication information may be set in two different expression forms, and the different expression forms correspond to different mapping relationships respectively. For example, two numbers with different values respectively correspond to the first mapping relation and the second mapping relation; or respectively correspond to the first mapping relationship and the second mapping relationship through different characters, for example, referring to fig. 2J, fig. 2J is a schematic diagram of another time domain resource allocation table provided in the embodiment of the present application, only a part of configuration information columns are schematically shown in the table, and more or fewer configuration information columns may be included in practical application, where the "mapping relationship" column directly indicates the first mapping relationship through the "first mapping relationship", and indicates the second mapping relationship through the "second mapping relationship", that is, when the second indication information is the "first mapping relationship", the indicated third mapping relationship is the first mapping relationship, and similarly, when the second indication information is the "second mapping relationship", the indicated third mapping relationship is the second mapping relationship.

It can be seen that, in this example, the first mapping relationship and the second mapping relationship correspond to the same time domain resource allocation table, the time domain resource allocation table includes second indication information, the second indication information is used to indicate that the corresponding downlink control information includes a third mapping relationship, and the first mapping relationship and the second mapping relationship include the third mapping relationship.

In the embodiment of the present application, the electronic device may be divided into the functional units according to the method example, for example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit. It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation.

Fig. 3A is a block diagram of functional units of a data channel transmission apparatus according to an embodiment of the present disclosure. The data channel transmission device 30 includes:

a transmitting unit 301, configured to transmit a data channel on a first time domain resource by a terminal; wherein a single transport block of the data channel is mapped to a plurality of transmission units on the first time domain resource, the plurality of transmission units having a time slot as a basic time unit.

In the case of using an integrated unit, a block diagram of functional units of the data channel transmission apparatus provided in the embodiment of the present application is shown in fig. 3B. In fig. 3B, the data channel transmission apparatus includes: a processing module 310 and a communication module 311. The processing module 310 is used to control and manage the actions of the data channel transmission device, e.g., the steps performed by the transmission unit 301, and/or other processes for performing the techniques described herein. The communication module 311 is used to support interaction between the data channel transmission apparatus and other devices. As shown in fig. 3B, the data channel transmission device may further include a storage module 312, and the storage module 312 is used for storing program codes and data of the data channel transmission device.

The Processing module 310 may be a Processor or a controller, and may be, for example, a Central Processing Unit (CPU), a general-purpose Processor, a Digital Signal Processor (DSP), an ASIC, an FPGA or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, DSPs, and microprocessors, among others. The communication module 311 may be a transceiver, an RF circuit or a communication interface, etc. The storage module 312 may be a memory.

All relevant contents of each scene related to the method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again. The data channel transmission apparatus can perform the steps performed by the terminal in the data channel transmission method shown in fig. 2A.

Fig. 4A is a block diagram of functional units of another data channel transmission apparatus according to an embodiment of the present disclosure. The data channel transmission device 40 includes:

a receiving unit 401, configured to receive, by a network device, a data channel transmitted by a terminal on a first time domain resource; wherein a single transport block of the data channel is mapped to a plurality of transmission units on the first time domain resource, the plurality of transmission units having a time slot as a basic time unit.

In the case of using an integrated unit, a block diagram of functional units of another data channel transmission apparatus provided in the embodiment of the present application is shown in fig. 4B. In fig. 4B, the data channel transmission apparatus includes: a processing module 410 and a communication module 411. The processing module 410 is used for controlling and managing actions of the data channel transmission device, e.g., steps performed by the receiving unit 401, and/or other processes for performing the techniques described herein. The communication module 411 is used to support interaction between the data channel transmission apparatus and other devices. As shown in fig. 4B, the data channel transmission device may further include a storage module 412, and the storage module 412 is used for storing program codes and data of the data channel transmission device.

The Processing module 410 may be a Processor or a controller, and may be, for example, a Central Processing Unit (CPU), a general-purpose Processor, a Digital Signal Processor (DSP), an ASIC, an FPGA or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, DSPs, and microprocessors, among others. The communication module 411 may be a transceiver, an RF circuit or a communication interface, etc. The storage module 412 may be a memory.

All relevant contents of each scene related to the method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again. The data channel transmission apparatus may perform the steps performed by the network device in the data channel transmission method shown in fig. 2A.

Embodiments of the present application also provide a computer storage medium, where the computer storage medium stores a computer program for electronic data exchange, the computer program enabling a computer to execute part or all of the steps of any one of the methods described in the above method embodiments, and the computer includes an electronic device.

Embodiments of the present application also provide a computer program product comprising a non-transitory computer readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps of any of the methods as described in the above method embodiments. The computer program product may be a software installation package, the computer comprising an electronic device.

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

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the above-described division of the units is only one type of division of logical functions, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or units, and may be an electric or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit may be stored in a computer readable memory if it is implemented in the form of a software functional unit and sold or used as a stand-alone product. Based on such understanding, the technical solution of the present application may be substantially implemented or a part of or all or part of the technical solution contributing to the prior art may be embodied in the form of a software product stored in a memory, and including several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the above-mentioned method of the embodiments of the present application. And the aforementioned memory comprises: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.

Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable memory, which may include: flash Memory disks, Read-Only memories (ROMs), Random Access Memories (RAMs), magnetic or optical disks, and the like.

The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A method for data channel transmission, comprising:

the terminal transmits a data channel on the first time domain resource;

2. The method of claim 1, wherein the downlink control information for instructing the terminal to transmit the data channel on the first time domain resource comprises: a first mapping relationship between a single TB of the data channel and a plurality of transmission units, or the downlink control information includes: a second mapping of multiple TBs of the data channel to different transmission units.

3. The method of claim 2, wherein the first mapping relationship or the second mapping relationship comprises configuration information for at least one of: the initial transmission unit position, the transmission unit length, the downlink control information of the data channel and the offset of the transmission unit group at the initial position of the data channel.

4. The method of claim 3, wherein the group of transmission units comprises Q transmission units, wherein Q is an integer greater than or equal to 1, wherein the starting transmission unit position and the transmission unit length are in a basic unit of 1 transmission unit, and wherein the offset is in a basic unit of the Q transmission units.

5. The method of claim 4, wherein the starting transmission unit position has a value within the Q range.

6. The method of claim 2, wherein the first mapping relationship or the second mapping relationship comprises configuration information for at least one of: the initial transmission symbol position of the data channel, the transmission unit length, the downlink control information, and the offset of the transmission unit group at the initial position of the data channel are determined, where the transmission unit group includes N transmission units, N is an integer greater than or equal to 1, the initial transmission symbol position uses 1 symbol as a basic unit, the transmission unit length uses 1 transmission unit as a basic unit, and the offset uses the N transmission units as a basic unit.

7. The method of claim 6, wherein the first mapping relationship or the second mapping relationship further comprises configuration information for: an end transmission symbol position, the end transmission symbol position having 1 symbol as a basic unit.

8. The method of claim 2, wherein the first mapping relationship or the second mapping relationship comprises configuration information for at least one of: the starting sub-transmission unit position, the sub-transmission unit length, the downlink control information of the data channel and the offset of the transmission unit group of the starting position of the data channel are determined, wherein the transmission unit group comprises P transmission units, P is an integer greater than or equal to 1, the starting sub-transmission unit position and the sub-transmission unit length take 1 sub-transmission unit as a unit, and the offset takes the P transmission units as a basic unit; one of the transmission units includes a plurality of sub-transmission units, each of which includes the same number of symbols.

9. The method according to any of claims 1-8, wherein said Q, said N, and said P are configured by higher layer signaling, or wherein information indicating values of said Q, said N, and said P is included in said downlink control information.

10. The method according to any one of claims 2 to 8, wherein the first mapping relation and the second mapping relation correspond to different time domain resource allocation tables, respectively, and the downlink control information includes: the first indication information is used for indicating a first time domain resource allocation table corresponding to the downlink control information, and the different time domain resource allocation tables include the first time domain resource allocation table.

11. The method according to any one of claims 2 to 8, wherein the first mapping relationship and the second mapping relationship correspond to a same time domain resource allocation table, the time domain resource allocation table includes second indication information, the second indication information is used to indicate that downlink control information corresponding to the second indication information includes a third mapping relationship, and the first mapping relationship and the second mapping relationship include the third mapping relationship.

12. A method for data channel transmission, comprising:

the network equipment receives a data channel transmitted by a terminal on a first time domain resource;

13. The method of claim 12, wherein the downlink control information for instructing the terminal to transmit the data channel on the first time domain resource comprises: a first mapping relationship between a single TB of the data channel and a plurality of transmission units, or the downlink control information includes: a second mapping of multiple TBs of the data channel to different transmission units.

14. The method of claim 13, wherein the first mapping relationship or the second mapping relationship comprises configuration information for at least one of: the initial transmission unit position, the transmission unit length, the downlink control information of the data channel and the offset of the transmission unit group at the initial position of the data channel.

15. The method of claim 14, wherein the group of transmission units comprises Q transmission units, wherein Q is an integer greater than or equal to 1, wherein the starting transmission unit position and the transmission unit length are in a basic unit of 1 transmission unit, and wherein the offset is in a basic unit of the Q transmission units.

16. The method of claim 15, wherein the starting transmission unit position has a value within the Q range.

17. The method of claim 13, wherein the first mapping relationship or the second mapping relationship comprises configuration information for at least one of: the initial transmission symbol position of the data channel, the transmission unit length, the downlink control information, and the offset of the transmission unit group at the initial position of the data channel are determined, where the transmission unit group includes N transmission units, N is an integer greater than or equal to 1, the initial transmission symbol position uses 1 symbol as a basic unit, the transmission unit length uses 1 transmission unit as a basic unit, and the offset uses the N transmission units as a basic unit.

18. The method of claim 17, wherein the first mapping relationship or the second mapping relationship further comprises configuration information for: an end transmission symbol position, the end transmission symbol position having 1 symbol as a basic unit.

19. The method of claim 13, wherein the first mapping relationship or the second mapping relationship comprises configuration information for at least one of: the starting sub-transmission unit position, the sub-transmission unit length, the downlink control information of the data channel and the offset of the transmission unit group of the starting position of the data channel are determined, wherein the transmission unit group comprises P transmission units, P is an integer greater than or equal to 1, the starting sub-transmission unit position and the sub-transmission unit length take 1 sub-transmission unit as a unit, and the offset takes the P transmission units as a basic unit; one of the transmission units includes a plurality of sub-transmission units, each of which includes the same number of symbols.

20. The method according to any of claims 12-19, wherein said Q, said N, and said P are configured by higher layer signaling, or wherein information indicating values of said Q, said N, and said P is included in said downlink control information.

21. The method according to any one of claims 13 to 19, wherein the first mapping relation and the second mapping relation correspond to different time domain resource allocation tables, respectively, and the downlink control information includes: the first indication information is used for indicating a first time domain resource allocation table corresponding to the downlink control information, and the different time domain resource allocation tables include the first time domain resource allocation table.

22. The method according to any one of claims 13 to 19, wherein the first mapping relationship and the second mapping relationship correspond to a same time domain resource allocation table, the time domain resource allocation table includes second indication information, the second indication information is used to indicate that downlink control information corresponding to the second indication information includes a third mapping relationship, and the first mapping relationship and the second mapping relationship include the third mapping relationship.

23. A data channel transmission apparatus, comprising:

24. A data channel transmission apparatus, comprising:

25. A terminal comprising a processor, memory, a communication interface, and one or more programs stored in the memory and configured to be executed by the processor, the programs comprising instructions for performing the steps in the method of any of claims 1-11.

26. A network device comprising a processor, a memory, a communication interface, and one or more programs stored in the memory and configured to be executed by the processor, the programs including instructions for performing the steps in the method of any of claims 12-22.

27. A computer-readable storage medium, characterized in that a computer program for electronic data exchange is stored, wherein the computer program causes a computer to perform the method according to any of the claims 1-11 or 12-22.