CN117882343A

CN117882343A - Time domain resource allocation method, device, equipment and storage medium

Info

Publication number: CN117882343A
Application number: CN202280002649.XA
Authority: CN
Inventors: 牟勤; 乔雪梅
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2022-08-11
Filing date: 2022-08-11
Publication date: 2024-04-12
Also published as: WO2024031577A1

Abstract

The embodiment of the disclosure discloses a time domain resource allocation method, a device, equipment and a storage medium, which can be applied to a communication system, wherein the method comprises the following steps when being executed by network equipment: acquiring a first default time domain resource allocation table defined for the first type of terminal equipment, and transmitting a downlink data channel to the first type of terminal equipment based on the first default time domain resource allocation table, wherein the first default time domain resource allocation table is used for allocating time domain resources for the downlink data channel related to the first type of terminal equipment, the first default time domain resource allocation table is different from a second default time domain resource allocation table, and the second default time domain resource allocation table is used for allocating time domain resources for the downlink data channel related to the second type of terminal equipment. By implementing the method disclosed by the invention, the time domain resource allocation effect can be effectively improved based on the first default time domain resource allocation table, so that the coverage capability of a downlink data channel is effectively improved.

Description

Time domain resource allocation method, device, equipment and storage medium

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a method, an apparatus, a device, and a storage medium for allocating time domain resources.

Background

With the continuous development of internet of things services, such as video monitoring, smart home, wearable devices, industrial sensing monitoring and other services, the services generally require data transmission rates of tens to 100M, and meanwhile, relatively high requirements on time delay are also required, and related technologies in the traditional LTE system are difficult to meet the requirements. Based on this situation, it is proposed to redesign a new user equipment in the new air interface of 5G, which new terminal type is called reduced capability terminal (Reduced capability UE, redcap UE) in the current 3GPP standardization. In the RedCap technique, the maximum bandwidth is reduced to 20MHz, thereby reducing the requirements of the rf front-end filter and also reducing the requirements of baseband processing capability.

In the related art, the time domain allocation method for the Redcap UE may affect the coverage effect of the downlink data channel of the common message.

Disclosure of Invention

The embodiment of the disclosure provides a time domain resource allocation method, a device, equipment, a chip system, a storage medium, a computer program and a computer program product, which can be applied to the technical field of communication and can effectively improve the time domain resource allocation effect based on a first default time domain resource allocation table, thereby effectively improving the coverage capability of a downlink data channel.

In a first aspect, an embodiment of the present disclosure provides a time domain resource allocation method, applied to a network device, where the method includes:

acquiring a first default time domain resource allocation table defined for first type terminal equipment;

transmitting a downlink data channel to the first type terminal equipment based on the first default time domain resource allocation table;

the first default time domain resource allocation table is used for allocating time domain resources for downlink data channels related to the first type of terminal equipment, the first default time domain resource allocation table is different from the second default time domain resource allocation table, and the second default time domain resource allocation table is used for allocating time domain resources for downlink data channels related to the second type of terminal equipment.

In one embodiment, the first default time domain resource allocation table includes: and a plurality of sets of first time domain allocation parameters, wherein the first time domain allocation parameters are used for determining time domain resources allocated for the downlink data channels related to the first type of terminal equipment.

In one embodiment, the second default time domain resource allocation table includes: and a plurality of sets of second time domain allocation parameters, wherein the second time domain allocation parameters are used for determining time domain resources allocated for the downlink data channels related to the second type of terminal equipment.

In one embodiment, the method comprises, among other things,

at least one set of first time domain allocation parameters in the first default time domain resource allocation table is different from a corresponding set of second time domain allocation parameters in the second default time domain resource allocation table.

In one embodiment, each set of first time domain allocation parameters in the first default time domain resource allocation table includes at least one of:

mapping the position of a demodulation reference signal (DMRS) of the type A;

a first mapping type of a downlink data channel;

first time slot offset K ₀ ；

A first starting OFDM symbol S of the downlink data channel;

the number of first OFDM symbols occupied by the downlink data channel L.

In one embodiment, each set of second time domain allocation parameters in the second default time domain resource allocation table includes at least one of:

mapping the position of a demodulation reference signal (DMRS) of the type A;

a second mapping type of the downlink data channel;

second slot offset K ₀ ；

A second starting OFDM symbol S of the downlink data channel;

and the number L of the second OFDM symbols occupied by the downlink data channel.

In one embodiment, each set of first time domain allocation parameters in the first default time domain resource allocation table includes: first time slot offset K ₀ Each set of second time domain allocation parameters in the second default time domain resource allocation table includes: second slot offset K ₀ The method comprises the steps of carrying out a first treatment on the surface of the Wherein,

a first time slot offset K in at least one set of said first time domain allocation parameters ₀ Offset from the second slot by K ₀ Are not identical.

In one embodiment, each set of first time domain allocation parameters in the first default time domain resource allocation table includes: first time slot offset K ₀ The method comprises the steps of carrying out a first treatment on the surface of the Wherein,

based on the first slot offset K in at least one set of the first time domain allocation parameters ₀ The determined downlink data channel and the control channel associated with the downlink data channel are in different subframes.

In one embodiment, each set of first time domain allocation parameters in the first default time domain resource allocation table includes: the first initial OFDM symbol S, each set of second time domain allocation parameters in the second default time domain resource allocation table includes: a second starting OFDM symbol S; wherein,

the first starting OFDM symbol S in at least one set of the first time domain allocation parameters is not identical to the second starting OFDM symbol S.

In one embodiment, each set of first time domain allocation parameters in the first default time domain resource allocation table includes: a first starting OFDM symbol S; wherein,

the value of the first starting OFDM symbol S in at least one set of the first time domain allocation parameters is 0.

In one embodiment, each set of first time domain allocation parameters in the first default time domain resource allocation table includes: the first OFDM symbol number L, each set of second time domain allocation parameters in the second default time domain resource allocation table includes: a second OFDM symbol number L; wherein,

the first OFDM symbol number L in at least one set of the first time domain allocation parameters is different from the second OFDM symbol number L.

In one embodiment, each set of first time domain allocation parameters in the first default time domain resource allocation table includes: a first OFDM symbol number L;

the first OFDM symbol number L in at least one group of the first time domain allocation parameters is larger than the designated OFDM symbol number;

the number of the specified OFDM symbols is a second OFDM symbol number L that is the maximum value of a plurality of second OFDM symbol numbers L, where the second OFDM symbol number L belongs to a second time domain allocation parameter in the second default time domain resource allocation table.

In one embodiment, the number of designated OFDM symbols is 13.

In one embodiment, each set of first time domain allocation parameters in the first default time domain resource allocation table includes: the first mapping type of the downlink data channel, each set of second time domain allocation parameters in the second default time domain resource allocation table includes: a second mapping type of the downlink data channel; wherein,

In the case that the first mapping type is the same as the second mapping type, the first scheme number of resource allocation schemes corresponding to the first mapping type is different from the second scheme number of resource allocation schemes corresponding to the second mapping type.

In one embodiment, the first number of schemes is greater than the second number of schemes.

In a second aspect, an embodiment of the present disclosure provides another method for allocating time domain resources, applied to a first type of terminal device, where the method includes:

receiving a downlink data channel related to the first type of terminal equipment based on the first default time domain resource allocation table;

In one embodiment, the method comprises, among other things,

mapping the position of a demodulation reference signal (DMRS) of the type A;

a first mapping type of a downlink data channel;

first time slot offset K ₀ ；

A first starting OFDM symbol S of the downlink data channel;

the number of first OFDM symbols occupied by the downlink data channel L.

In a kind ofIn an embodiment, each set of first time domain allocation parameters in the first default time domain resource allocation table includes: first time slot offset K ₀ The method comprises the steps of carrying out a first treatment on the surface of the Wherein,

In one embodiment, each set of first time domain allocation parameters in the first default time domain resource allocation table includes: a first starting OFDM symbol S;

wherein the value of the first starting OFDM symbol S in at least one set of the first time domain allocation parameters is 0.

In one embodiment, the number of designated OFDM symbols is 13.

In a third aspect, an embodiment of the present disclosure provides a communications apparatus that performs some or all of the functions of the network device in the method described in the first aspect, for example, the functions of the communications apparatus may perform some or all of the functions of the embodiments of the present disclosure, or may perform the functions of any of the embodiments of the present disclosure alone. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the functions described above.

Optionally, in an embodiment of the disclosure, the structure of the communication device may include a transceiver module and a processing module, where the processing module is configured to support the communication device to perform the corresponding functions in the method described above. The transceiver module is used for supporting communication between the communication device and other equipment. The communication device may further comprise a memory module for coupling with the transceiver module and the processing module, which holds the necessary computer programs and data of the communication device.

As an example, the processing module may be a processor, the transceiver module may be a transceiver or a communication interface, and the storage module may be a memory.

In a fourth aspect, an embodiment of the present disclosure provides another communication apparatus having a function of implementing part or all of the first type of terminal device in the method example described in the second aspect, for example, the function of the communication apparatus may be provided with the function of some or all of the embodiments in the present disclosure, or may be provided with a function of implementing any one of the embodiments in the present disclosure separately. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the functions described above.

In a fifth aspect, an embodiment of the present disclosure provides a communication apparatus, where the communication apparatus includes a processor, and when the processor invokes a computer program in a memory, the method for allocating time domain resources according to the first aspect is performed.

In a sixth aspect, an embodiment of the disclosure provides a communication apparatus, where the communication apparatus includes a processor, and when the processor invokes a computer program in a memory, the time domain resource allocation method described in the second aspect is performed.

In a seventh aspect, embodiments of the present disclosure provide a communication apparatus comprising a processor and a memory, the memory having a computer program stored therein; the processor executes the computer program stored in the memory to cause the communication device to perform the time domain resource allocation method according to the first aspect.

In an eighth aspect, embodiments of the present disclosure provide a communication apparatus comprising a processor and a memory, the memory having a computer program stored therein; the processor executes the computer program stored in the memory to cause the communication device to perform the time domain resource allocation method according to the second aspect.

In a ninth aspect, an embodiment of the disclosure provides a communications apparatus, the apparatus including a processor and an interface circuit configured to receive code instructions and transmit the code instructions to the processor, the processor configured to execute the code instructions to cause the apparatus to perform the time domain resource allocation method according to the first aspect.

In a tenth aspect, embodiments of the present disclosure provide a communications apparatus, the apparatus comprising a processor and interface circuitry for receiving code instructions and transmitting to the processor, the processor for executing the code instructions to cause the apparatus to perform the time domain resource allocation method of the second aspect.

In an eleventh aspect, an embodiment of the disclosure provides a communication system, where the system includes a communication device according to the third aspect and a communication device according to the fourth aspect, or where the system includes a communication device according to the fifth aspect and a communication device according to the sixth aspect, or where the system includes a communication device according to the seventh aspect and a communication device according to the eighth aspect, or where the system includes a communication device according to the ninth aspect and a communication device according to the tenth aspect.

In a twelfth aspect, an embodiment of the disclosure provides a computer readable storage medium storing instructions for use by a network device as described above, which when executed, cause the network device to perform the time domain resource allocation method as described in the first aspect.

In a thirteenth aspect, an embodiment of the present disclosure provides a readable storage medium, configured to store instructions for use by a first type of terminal device, where the instructions, when executed, cause the first type of terminal device to perform the time domain resource allocation method described in the second aspect.

In a fourteenth aspect, the present disclosure also provides a computer program product comprising a computer program which, when run on a computer, causes the computer to perform the time domain resource allocation method of the first aspect described above.

In a fifteenth aspect, the present disclosure also provides a computer program product comprising a computer program which, when run on a computer, causes the computer to perform the time domain resource allocation method of the second aspect described above.

In a sixteenth aspect, the present disclosure provides a chip system comprising at least one processor and an interface for supporting a network device to implement the functionality referred to in the first aspect, e.g. to determine or process at least one of data and information referred to in the above-described method.

In one possible design, the chip system further includes a memory to hold computer programs and data necessary for the network device. The chip system can be composed of chips, and can also comprise chips and other discrete devices.

In a seventeenth aspect, the present disclosure provides a chip system comprising at least one processor and an interface for supporting a first type of terminal device to perform the functions related to the second aspect, e.g. to determine or process at least one of data and information related to the above-mentioned method.

In one possible design, the chip system further includes a memory for holding computer programs and data necessary for the first type of terminal device. The chip system can be composed of chips, and can also comprise chips and other discrete devices.

In an eighteenth aspect, the present disclosure provides a computer program which, when run on a computer, causes the computer to perform the time domain resource allocation method of the first aspect described above.

In a nineteenth aspect, the present disclosure provides a computer program which, when run on a computer, causes the computer to perform the time domain resource allocation method of the second aspect described above.

In summary, the time domain resource allocation method, apparatus, device, chip system, storage medium, computer program and computer program product provided in the embodiments of the present disclosure may implement the following technical effects:

the downlink data channel is sent to the first type of terminal equipment based on the first default time domain resource allocation table, wherein the first default time domain resource allocation table is used for allocating time domain resources for the downlink data channel related to the first type of terminal equipment, the first default time domain resource allocation table is different from the second default time domain resource allocation table, the second default time domain resource allocation table is used for allocating time domain resources for the downlink data channel related to the second type of terminal equipment, and therefore the time domain resource allocation effect can be effectively improved based on the first default time domain resource allocation table, and the coverage capability of the downlink data channel can be effectively improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the background of the present disclosure, the following description will explain the drawings that are required to be used in the embodiments or the background of the present disclosure.

Fig. 1 is a schematic architecture diagram of a communication system according to an embodiment of the disclosure;

fig. 2 is a flowchart of a time domain resource allocation method according to an embodiment of the present disclosure;

fig. 3 is a flowchart illustrating another method for allocating time domain resources according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of a communication device according to an embodiment of the disclosure;

fig. 5 is a schematic structural diagram of another communication device provided in an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a chip of an embodiment of the disclosure.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the embodiments of the present disclosure. Rather, they are merely examples of apparatus and methods consistent with aspects of embodiments of the present disclosure as detailed in the accompanying claims.

The terminology used in the embodiments of the disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the disclosure. As used in this disclosure of embodiments and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used in embodiments of the present disclosure to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, the first information may also be referred to as second information, and similarly, the second information may also be referred to as first information, without departing from the scope of embodiments of the present disclosure. The words "if" and "if" as used herein may be interpreted as "at … …" or "at … …" or "in response to a determination", depending on the context.

For ease of understanding, the terms referred to in this disclosure are first introduced.

1. Orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM)

Orthogonal frequency division multiplexing, which is one type of multi-carrier modulation, can divide a channel into a number of orthogonal sub-channels, convert a high-speed data signal into parallel low-speed sub-data streams, and modulate to transmit on each sub-channel.

2. Time slot (time slot)

A slot, which is the minimum unit of circuit-switched summary information transfer, is generally referred to as a time slice in Time Division Multiplexing (TDM) mode.

In order to better understand a time domain resource allocation method disclosed in the embodiments of the present disclosure, a description is first given below of a communication system to which the embodiments of the present disclosure are applicable.

Referring to fig. 1, fig. 1 is a schematic architecture diagram of a communication system according to an embodiment of the disclosure. The communication system may include, but is not limited to, one network device and one terminal device, and the number and form of devices shown in fig. 1 are only for example and not limiting the embodiments of the present disclosure, and may include two or more network devices and two or more terminal devices in practical applications. The communication system shown in fig. 1 is exemplified as including a network device 101 and a terminal device 102.

It should be noted that the technical solution of the embodiment of the present disclosure may be applied to various communication systems. For example: a long term evolution (long term evolution, LTE) system, a fifth generation (5th generation,5G) mobile communication system, a 5G New Radio (NR) system, or other future new mobile communication systems, etc.

The network device 101 in the embodiment of the present disclosure is an entity for transmitting or receiving a signal on the network side. For example, the network device 101 may be an evolved NodeB (eNB), a transmission point (transmission reception point, TRP), a next generation NodeB (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (wireless fidelity, wiFi) system, etc. The embodiments of the present disclosure do not limit the specific technology and specific device configuration employed by the network device.

The network device provided by the embodiments of the present disclosure may be composed of a Central Unit (CU) and a Distributed Unit (DU), where the CU may also be referred to as a control unit (control unit), the structure of the CU-DU may be used to split the protocol layers of the network device, such as a base station, and the functions of part of the protocol layers are placed in the CU for centralized control, and the functions of part or all of the protocol layers are distributed in the DU, so that the CU centrally controls the DU.

The terminal device 102 in the embodiments of the present disclosure is an entity on the user side for receiving or transmitting signals, such as a mobile phone. The terminal device may also be referred to as a terminal device (terminal), a User Equipment (UE), a Mobile Station (MS), a mobile terminal device (MT), etc. The terminal device may be an automobile with a communication function, a smart car, a mobile phone (mobile phone), a wearable device, a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in unmanned-driving (self-driving), a wireless terminal device in teleoperation (remote medical surgery), a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in smart city (smart city), a wireless terminal device in smart home (smart home), or the like.

The embodiment of the present disclosure does not limit the specific technology and the specific device configuration adopted by the terminal device.

It may be understood that, the communication system described in the embodiments of the present disclosure is for more clearly describing the technical solutions of the embodiments of the present disclosure, and is not limited to the technical solutions provided in the embodiments of the present disclosure, and those skilled in the art can know that, with the evolution of the system architecture and the appearance of new service scenarios, the technical solutions provided in the embodiments of the present disclosure are equally applicable to similar technical problems.

The time domain resource allocation method and the device thereof provided by the present disclosure are described in detail below with reference to the accompanying drawings. Fig. 2 is a flowchart of a method for allocating time domain resources, which is performed by a network device according to an embodiment of the present disclosure. The time domain resource allocation method in the embodiment can be applied to network equipment, such as a mobile phone or a tablet, a smart watch and the like with a mobile communication function, and is not limited.

As shown in fig. 2, the method may include, but is not limited to, the steps of:

s102: a first default time domain resource allocation table defined for a first type of terminal device is obtained.

The first type of terminal equipment refers to corresponding type of terminal equipment applicable to the time domain resource allocation method. The first type of terminal device may be, for example, a reduced capability terminal (Reduced capability UE, redcap UE).

The Time domain (Time domain) resource may describe a resource of a Time domain occupied in a data transmission process. The default time domain resource may refer to a time domain resource used by default in the time domain resource allocation process. The default time domain resource allocation table may be preconfigured related information indicating a default time domain resource allocation procedure. And the first default time domain resource allocation table refers to a default time domain resource allocation table defined for the first type of terminal equipment.

S202: and transmitting a downlink data channel to the first type of terminal equipment based on the first default time domain resource allocation table.

The downlink data channel refers to a channel used by a network device to transmit signals to a terminal device.

The second default time domain resource allocation table refers to a default time domain resource allocation table configured for the second type of terminal equipment.

For example, the second default time domain resource allocation table may be as shown in table 1 below:

it will be appreciated that each of the elements in table 1 are independent, and that these elements are illustratively listed in the same table, but do not represent that all elements in the table must exist simultaneously in accordance with what is shown in the table. Wherein the value of each element is independent of any other element value in table 1. It will be appreciated by those skilled in the art that the values of each of the elements in Table 1 are a separate embodiment.

The second type of terminal refers to a terminal with stronger capability than the corresponding type of the first type of terminal equipment.

In this embodiment, by acquiring a first default time domain resource allocation table defined for a first type of terminal device, and sending a downlink data channel to the first type of terminal device based on the first default time domain resource allocation table, where the first default time domain resource allocation table is used to allocate time domain resources for a downlink data channel related to the first type of terminal device, the first default time domain resource allocation table is different from a second default time domain resource allocation table, and the second default time domain resource allocation table is used to allocate time domain resources to the downlink data channel related to the second type of terminal device, so that a time domain resource allocation effect can be effectively improved based on the first default time domain resource allocation table, thereby effectively improving coverage capability of the downlink data channel.

The embodiment of the disclosure also provides a time domain resource allocation method, wherein the first default time domain resource allocation table comprises: and the plurality of groups of first time domain allocation parameters are used for determining time domain resources allocated to a downlink data channel related to the first type terminal equipment, so that the indication effect of the first default time domain resource allocation table on the first type terminal equipment can be ensured based on the plurality of groups of first time domain allocation parameters in the time domain resource allocation process.

The time domain allocation parameter refers to a related parameter indicating a time domain resource allocation process. The first time domain allocation parameter refers to a time domain allocation parameter included in the first default time domain resource allocation table.

The embodiment of the disclosure also provides a time domain resource allocation method, and the second default time domain resource allocation table includes: and a plurality of sets of second time domain allocation parameters, wherein the second time domain allocation parameters are used for determining time domain resources allocated to a downlink data channel related to the second type of terminal equipment, so that the indication effect of the second default time domain resource allocation table can be effectively improved based on the plurality of sets of second time domain allocation parameters.

The second time domain allocation parameter refers to a time domain allocation parameter included in a second default time domain resource allocation table.

The embodiment of the disclosure also provides a time domain resource allocation method, wherein at least one group of first time domain allocation parameters in a first default time domain resource allocation table are different from a corresponding group of second time domain allocation parameters in a second default time domain resource allocation table, so that applicability of the first default time domain resource allocation table and the second default time domain resource allocation table to different types of terminal equipment can be ensured.

The embodiment of the disclosure also provides a time domain resource allocation method, wherein each group of first time domain allocation parameters in the first default time domain resource allocation table comprises at least one of the following: demodulation reference signal DMRS position of mapping type a, first mapping type of downlink data channel, first slot offset K ₀ The first starting OFDM symbol S of the downlink data channel and the first OFDM symbol number L occupied by the downlink data channel can effectively improve the flexibility of the indication content of each group of first time domain allocation parameters so as to adapt to personalized application scenes.

Among them, demodulation reference signals (Demodulation Reference Signal, DMRS) can be used for channel estimation and correlation demodulation of physical channels.

It may be appreciated that the DMRS may be mapped to physical channels such as PBCH, PDCCH, PDSCH, PUCCH and PUSCH, and the mapping type may determine a symbol start position of the DMRS in the time domain. The first mapping type refers to mapping type information of the downlink data channel included in the first time domain allocation parameter.

The time slot refers to the minimum unit of the circuit switching summary information transmission. And slot offset may be used to determine the subframe in which PDSCH is located. The first slot offset refers to a slot offset included in the first time domain allocation parameter.

Wherein orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM), which is one type of multi-carrier modulation, can divide a channel into several orthogonal sub-channels, convert a high-speed data signal into parallel low-speed sub-data streams, and modulate to transmit on each sub-channel.

The first start OFDM symbol S refers to a start OFDM symbol of the downlink data channel indicated by the first time domain allocation parameter.

The number of OFDM symbols refers to the number of OFDM symbols occupied by the downlink data channel. The first OFDM symbol number L refers to the number of OFDM symbols indicated by the first time domain allocation parameter.

The embodiment of the disclosure also provides a time domain resource allocation method, wherein each group of second time domain allocation parameters in the second default time domain resource allocation table comprises at least one of the following: demodulation reference signal DMRS position of mapping type a, second mapping type of downlink data channel, second slot offset K ₀ The second initial OFDM symbol S of the downlink data channel and the second OFDM symbol number L occupied by the downlink data channel, thereby effectively improving the reliability of the second time domain distribution parameter.

The second mapping type refers to a mapping type indicated by the second time domain allocation parameter. Second slot offset K ₀ Refers to the slot offset indicated by the second time domain allocation parameter. The second start OFDM symbol S refers to the start OFDM symbol indicated by the second time domain allocation parameter. The second OFDM symbol number refers to the number of OFDM symbols indicated by the second time domain allocation parameter.

The embodiment of the disclosure also provides a time domain resource allocation method, wherein each group of first time domain allocation parameters in the first default time domain resource allocation table comprises: first time slot offset K ₀ Each set of second time domain allocation parameters in the second default time domain resource allocation table includes: second slot offset K ₀ Wherein the first time slot offset K in at least one set of first time domain allocation parameters ₀ Offset from the second time slot by K ₀ The first time domain allocation parameter and the second time domain allocation parameter are different, so that the first time domain allocation parameter and the second time domain allocation parameter are located in the same dimension of time slot offset, and the indication effect of the first time domain allocation parameter compared with the second time domain allocation parameter is effectively improved.

The embodiment of the disclosure also provides a time domain resource allocation method,each set of first time domain allocation parameters in the first default time domain resource allocation table includes: first time slot offset K ₀ Wherein the first time slot offset K is based on at least one set of first time domain allocation parameters ₀ The determined downlink data channel and the control channel associated with the downlink data channel are in different subframes, so that safe and reliable transmission of the control signaling can be ensured.

Wherein, the control channel refers to a channel for transmitting control signaling.

The embodiment of the disclosure also provides a time domain resource allocation method, wherein each group of first time domain allocation parameters in the first default time domain resource allocation table comprises: each set of second time domain allocation parameters in the second default time domain resource allocation table comprises: the second starting OFDM symbol S, where the first starting OFDM symbol S and the second starting OFDM symbol S in at least one set of first time domain allocation parameters are different, so that the first time domain allocation parameter and the second time domain allocation parameter can be located in the same dimension of the starting OFDM symbol, and an indication effect of the first time domain allocation parameter compared with that of the second time domain allocation parameter is effectively improved.

The embodiment of the disclosure also provides a time domain resource allocation method, wherein each group of first time domain allocation parameters in the first default time domain resource allocation table comprises: the first starting OFDM symbol S is set to 0 in at least one set of first time domain allocation parameters, so that the number of OFDM symbols that can be occupied by the downlink data channel can be effectively increased when the value of the first starting OFDM symbol S is set to 0.

It will be appreciated that the number of OFDM symbols in a subframe is limited, and that when the value of the first starting OFDM symbol S is 0, the downlink data channel can be selected from the starting position in the subframe

The embodiment of the disclosure also provides a time domain resource allocation method, wherein each group of first time domain allocation parameters in the first default time domain resource allocation table comprises: the first OFDM symbol number L, and each set of second time domain allocation parameters in the second default time domain resource allocation table includes: the second OFDM symbol number L, where the first OFDM symbol number L and the second OFDM symbol number L in at least one set of first time domain allocation parameters are different, so that the first time domain allocation parameters and the second time domain allocation parameters can be located in the same dimension of the OFDM symbol number, and an indication effect of the first time domain allocation parameters compared with the second time domain allocation parameters is effectively improved.

The embodiment of the disclosure also provides a time domain resource allocation method, wherein each group of first time domain allocation parameters in the first default time domain resource allocation table comprises: the first OFDM symbol number L in at least one group of first time domain allocation parameters is larger than the number of appointed OFDM symbols, wherein the number of the appointed OFDM symbols is the second OFDM symbol number L with the maximum value in a plurality of second OFDM symbol numbers L, and the second OFDM symbol number L belongs to the second time domain allocation parameters in a second default time domain resource allocation table, so that the resource utilization rate in the time domain resource allocation process can be effectively improved when the first OFDM symbol number L is larger than the number of the appointed OFDM symbols.

The embodiment of the disclosure also provides a time domain resource allocation method, which designates the number of OFDM symbols to be 13.

The embodiment of the disclosure also provides a time domain resource allocation method, wherein each group of first time domain allocation parameters in the first default time domain resource allocation table comprises: the first mapping type of the downlink data channel, and each group of second time domain allocation parameters in the second default time domain resource allocation table comprises: and the second mapping type of the downlink data channel, wherein the first scheme number of the resource allocation schemes corresponding to the first mapping type and the second scheme number of the resource allocation schemes corresponding to the second mapping type are different under the condition that the first mapping type is the same as the second mapping type, so that the first time domain allocation parameter and the second time domain allocation parameter are in the same dimension of the mapping type, and the indication effect of the first time domain allocation parameter compared with the second time domain allocation parameter is effectively improved.

It may be appreciated that the first mapping type is the same as the second mapping type (e.g. the first mapping type is a TypeA type, then the second mapping type is a TypeA type, or if the first mapping type is a TypeB type, then the second mapping type is a TypeB type), that is, the demodulation reference signals may be mapped into the downlink data channel in the same mapping manner based on the first default time domain resource allocation table and the second default time domain resource allocation table.

The first scheme number refers to the number of resource allocation schemes corresponding to the first mapping type. The second scheme number refers to the number of resource allocation schemes corresponding to the second mapping type.

The embodiment of the disclosure also provides a time domain resource allocation method, wherein the number of the first schemes is larger than that of the second schemes, so that the flexibility of the time domain resource allocation process can be effectively improved, and the indication effect of the first time domain allocation parameters is improved.

The embodiment of the disclosure also provides a time domain resource allocation method, if the first mapping type is a TypeA type, the second mapping type is a TypeA type, and/or if the first mapping type is a TypeB type, the second mapping type is a TypeB type, so that the relevance between the first mapping type and the second mapping type can be effectively improved.

The embodiment of the disclosure also provides a time domain resource allocation method, wherein the capability of the first type of terminal equipment is lower than that of the second type of terminal equipment, so that the suitability of time domain resource allocation to the first type of terminal equipment can be effectively improved.

The embodiment of the disclosure also provides a time domain resource allocation method, and the downlink data channel is a data channel broadcasted by the system.

Fig. 3 is a flowchart of another time domain resource allocation method provided by an embodiment of the present disclosure, where the time domain resource allocation method in the embodiment may be applied to a first type of terminal device, as shown in fig. 3, and the method may include, but is not limited to, the following steps:

s103: a first default time domain resource allocation table defined for a first type of terminal device is obtained.

S203: a downlink data channel associated with a first type of terminal device is received based on a first default time domain resource allocation table.

In this embodiment, by acquiring a first default time domain resource allocation table defined for a first type of terminal device, receiving a downlink data channel related to the first type of terminal device based on the first default time domain resource allocation table, where the first default time domain resource allocation table is used to allocate time domain resources for the downlink data channel related to the first type of terminal device, the first default time domain resource allocation table is different from a second default time domain resource allocation table, and the second default time domain resource allocation table is used to allocate time domain resources for the downlink data channel related to the second type of terminal device, so that the time domain resource allocation effect can be effectively improved based on the first default time domain resource allocation table, and reliability of the downlink data channel received by the first type of terminal device is ensured.

Embodiments of the present disclosure also provide A time domain resource allocation method, each group of first time domain allocation parameters in a first default time domain resource allocation table comprises: first time slot offset K ₀ Wherein the first time slot offset K is based on at least one set of first time domain allocation parameters ₀ The determined downlink data channel and the control channel associated with the downlink data channel are in different subframes, so that safe and reliable transmission of the control signaling can be ensured.

For example, for the above time domain resource allocation method, the following may be exemplified:

(1) The time domain resource allocation of the downlink data channel for the first type of terminal is performed according to a first default time domain resource allocation table, and the time domain resource allocation of the downlink data channel for the second type of terminal is performed according to a second default time domain resource allocation table. The first type of terminal is less capable than the second type of terminal. The first default time domain resource allocation table is different from the second default time domain resource allocation table.

(2) Based on (1), the downlink data channel is a data channel broadcasted by the system, including at least one of a system message, a random access response, and a paging message.

(3) Based on (1), the first default time domain resource allocation table is a protocol-based preset table.

(4) Based on (1), at least one of the data channel subframe acknowledgement parameters in the first default time domain resource allocation table and the second default time domain resource allocation table is different.

(5) Based on (4), the first default time domain resource allocation table contains at least acknowledgement parameters for data channel subframes, at least one of which may cause the PDSCH and PDSCH associated control channel to be in different subframes. For example K in the first default time domain resource allocation table described above ₀ Value of at least one K ₀ The value is a value greater than 0.

(6) Based on (1), at least one of the starting OFDM symbol parameters in the subframe for the data channel in the first default time domain resource allocation table is different from the starting OFDM symbol parameters in the subframe for the data channel in the second default time domain resource allocation table.

(7) Based on (6), the value of at least one of the starting OFDM symbols (S value) is 0.

(8) Based on (1), the number of symbols occupied by the data channel in the first default time domain resource allocation table is different from the number of symbols occupied by the data channel in the second default time domain resource allocation table.

(9) Based on (8), at least one of the symbols occupied by the data channel in the first default time domain resource allocation table has a number L greater than 13.

(10) Based on (1), the first default time domain resource allocation table is different from the number of time domain allocation schemes PDSCH mapping type A, PDSCH mapping type B supported in the second default time domain resource allocation table.

(11) Based on (10), the number of time domain allocation schemes supporting the type a in the first default time domain resource allocation table is greater than the number of time domain allocation schemes supporting the type a in the second default time domain resource allocation table.

Fig. 4 is a schematic structural diagram of a communication device according to an embodiment of the disclosure. The communication device 40 shown in fig. 4 may include a transceiver module 401 and a processing module 402. The transceiver module 401 may include a transmitting module for implementing a transmitting function and/or a receiving module for implementing a receiving function, and the transceiver module 401 may implement the transmitting function and/or the receiving function.

The communication device 40 may be a network device (such as the network device in the foregoing method embodiment), or may be a device in the network device, or may be a device that can be used in a matching manner with the network device. Alternatively, the communication device 40 may be a terminal device (such as the first type of terminal device in the foregoing method embodiment), or may be a device in the terminal device, or may be a device that can be used in a matching manner with the terminal device.

Communication apparatus 40, on the network device side, comprising:

a processing module 402, configured to: a first default time domain resource allocation table defined for a first type of terminal device is obtained.

A transceiver module 401 for: transmitting a downlink data channel to the first type of terminal equipment based on a first default time domain resource allocation table;

Optionally, the first default time domain resource allocation table includes: and a plurality of sets of first time domain allocation parameters, wherein the first time domain allocation parameters are used for determining time domain resources allocated for downlink data channels related to the first type of terminal equipment.

Optionally, the second default time domain resource allocation table includes: and a plurality of sets of second time domain allocation parameters, wherein the second time domain allocation parameters are used for determining time domain resources allocated for downlink data channels associated with the second type of terminal equipment.

Alternatively, the method may comprise, among other things,

Optionally, each set of first time domain allocation parameters in the first default time domain resource allocation table includes at least one of:

mapping the position of a demodulation reference signal (DMRS) of the type A;

a first mapping type of a downlink data channel;

first time slot offset K ₀ ；

A first starting OFDM symbol S of the downlink data channel;

the number of first OFDM symbols occupied by the downlink data channel L.

Optionally, each set of second time domain allocation parameters in the second default time domain resource allocation table includes at least one of:

mapping the position of a demodulation reference signal (DMRS) of the type A;

a second mapping type of the downlink data channel;

second slot offset K ₀ ；

A second starting OFDM symbol S of the downlink data channel;

Optionally, each set of first time domain allocation parameters in the first default time domain resource allocation table includes: first time slot offset K ₀ Each set of second time domain allocation parameters in the second default time domain resource allocation table includes: second slot offset K ₀ The method comprises the steps of carrying out a first treatment on the surface of the Wherein,

First time slot offset K in at least one set of first time domain allocation parameters ₀ Offset from the second time slot by K ₀ Are not identical.

Optionally, each set of first time domain allocation parameters in the first default time domain resource allocation table includes: first time slot offset K ₀ The method comprises the steps of carrying out a first treatment on the surface of the Wherein,

based on a first slot offset K in at least one set of first time domain allocation parameters ₀ The determined downlink data channel and the control channel associated with the downlink data channel are in different subframes.

Optionally, each set of first time domain allocation parameters in the first default time domain resource allocation table includes: each set of second time domain allocation parameters in the second default time domain resource allocation table comprises: a second starting OFDM symbol S; wherein,

the first starting OFDM symbol S is different from the second starting OFDM symbol S in at least one set of first time domain allocation parameters.

Optionally, each set of first time domain allocation parameters in the first default time domain resource allocation table includes: a first starting OFDM symbol S; wherein,

the value of the first starting OFDM symbol S in the at least one set of first time domain allocation parameters is 0.

Optionally, each set of first time domain allocation parameters in the first default time domain resource allocation table includes: the first OFDM symbol number L, and each set of second time domain allocation parameters in the second default time domain resource allocation table includes: a second OFDM symbol number L; wherein,

The first OFDM symbol number L and the second OFDM symbol number L in the at least one set of first time domain allocation parameters are different.

Optionally, each set of first time domain allocation parameters in the first default time domain resource allocation table includes: a first OFDM symbol number L;

the first OFDM symbol number L in at least one group of first time domain allocation parameters is larger than the number of appointed OFDM symbols;

the number of the designated OFDM symbols is a second OFDM symbol number L that is the maximum value of the plurality of second OFDM symbol numbers L, where the second OFDM symbol number L belongs to a second time domain allocation parameter in a second default time domain resource allocation table.

Alternatively, the number of designated OFDM symbols is 13.

Optionally, each set of first time domain allocation parameters in the first default time domain resource allocation table includes: the first mapping type of the downlink data channel, and each group of second time domain allocation parameters in the second default time domain resource allocation table comprises: a second mapping type of the downlink data channel; wherein,

in the case where the first mapping type is the same as the second mapping type, the first scheme number of resource allocation schemes corresponding to the first mapping type is different from the second scheme number of resource allocation schemes corresponding to the second mapping type.

Optionally, the first number of schemes is greater than the second number of schemes.

By implementing the method disclosed by the invention, the network equipment can acquire the first default time domain resource allocation table defined for the first type of terminal equipment, and send the downlink data channel to the first type of terminal equipment based on the first default time domain resource allocation table, wherein the first default time domain resource allocation table is used for allocating time domain resources for the downlink data channel related to the first type of terminal equipment, the first default time domain resource allocation table is different from the second default time domain resource allocation table, and the second default time domain resource allocation table is used for allocating time domain resources for the downlink data channel related to the second type of terminal equipment, so that the time domain resource allocation effect can be effectively improved based on the first default time domain resource allocation table, and the coverage capability of the downlink data channel can be effectively improved.

Communication means 40, on the side of the first type of terminal device, comprising:

a processing module 402 is configured to obtain a first default time domain resource allocation table defined for a first type of terminal device.

A transceiver module 401, configured to receive a downlink data channel related to a first type of terminal device based on a first default time domain resource allocation table;

Alternatively, the method may comprise, among other things,

mapping the position of a demodulation reference signal (DMRS) of the type A;

a first mapping type of a downlink data channel;

first time slot offset K ₀ ；

A first starting OFDM symbol S of the downlink data channel;

the number of first OFDM symbols occupied by the downlink data channel L.

Optionally, each set of first time domain allocation parameters in the first default time domain resource allocation table includes: first time slot offset K ₀ Each group of second time domain allocation parameters in the second default time domain resource allocation tableThe number includes: second slot offset K ₀ The method comprises the steps of carrying out a first treatment on the surface of the Wherein,

Optionally, each set of first time domain allocation parameters in the first default time domain resource allocation table includes: a first starting OFDM symbol S;

Wherein a value of a first starting OFDM symbol S in the at least one set of first time domain allocation parameters is 0.

Alternatively, the number of designated OFDM symbols is 13.

By implementing the method disclosed by the invention, the first type terminal equipment can acquire the first default time domain resource allocation table defined for the first type terminal equipment, and receive the downlink data channel related to the first type terminal equipment based on the first default time domain resource allocation table, wherein the first default time domain resource allocation table is used for allocating time domain resources for the downlink data channel related to the first type terminal equipment, the first default time domain resource allocation table is different from the second default time domain resource allocation table, the second default time domain resource allocation table is used for allocating time domain resources for the downlink data channel related to the second type terminal equipment, and the time domain resource allocation effect can be effectively improved based on the first default time domain resource allocation table, so that the reliability of the downlink data channel received by the first type terminal equipment is ensured.

Fig. 5 is a schematic structural diagram of another communication device according to an embodiment of the present disclosure. The communication device 50 may be a terminal device (e.g., a first type of terminal device in the foregoing method embodiment), or may be a network device (e.g., a network device in the foregoing method embodiment), or may be a chip, a chip system, or a processor, etc. supporting the terminal device to implement the foregoing method, or may be a chip, a chip system, or a processor, etc. supporting the network device to implement the foregoing method. The device can be used for realizing the method described in the method embodiment, and can be particularly referred to the description in the method embodiment.

The communication device 50 may include one or more processors 501. The processor 501 may be a general purpose processor or a special purpose processor, etc. For example, a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processor may be used to control communication devices (e.g., base stations, baseband chips, terminal equipment chips, DUs or CUs, etc.), execute computer programs, and process data of the computer programs.

Optionally, the communication device 50 may further include one or more memories 502, on which a computer program 504 may be stored, and the processor 501 may store a computer program 503, where the processor 501 executes the computer program 504 and/or the computer program 503, so that the communication device 50 performs the method described in the above method embodiments. Optionally, the memory 502 may also store data. The communication device 50 and the memory 502 may be provided separately or may be integrated.

Optionally, the communication device 50 may further include a transceiver 505, an antenna 506. The transceiver 505 may be referred to as a transceiver unit, a transceiver circuit, etc. for implementing a transceiver function. The transceiver 505 may include a receiver, which may be referred to as a receiver or a receiving circuit, etc., for implementing a receiving function, and a transmitter; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., for implementing a transmitting function.

Optionally, one or more interface circuits 507 may also be included in the communication device 50. The interface circuit 507 is used to receive code instructions and transmit them to the processor 501. The processor 501 executes the code instructions to cause the communication device 50 to perform the method described in the method embodiments described above.

In one implementation, a transceiver for implementing the receive and transmit functions may be included in the processor 501. For example, the transceiver may be a transceiver circuit, or an interface circuit. The transceiver circuitry, interface or interface circuitry for implementing the receive and transmit functions may be separate or may be integrated. The transceiver circuit, interface or interface circuit may be used for reading and writing codes/data, or the transceiver circuit, interface or interface circuit may be used for transmitting or transferring signals.

In one implementation, the processor 501 may store a computer program 503, where the computer program 503 runs on the processor 501, and may cause the communication device 50 to perform the method described in the above method embodiments. The computer program 503 may be solidified in the processor 501, in which case the processor 501 may be implemented in hardware.

In one implementation, the communication device 50 may include circuitry that may implement the functions of transmitting or receiving or communicating in the foregoing method embodiments. The processors and transceivers described in this disclosure may be implemented on integrated circuits (integrated circuit, ICs), analog ICs, radio frequency integrated circuits RFICs, mixed signal ICs, application specific integrated circuits (application specific integrated circuit, ASIC), printed circuit boards (printed circuit board, PCB), electronic devices, and the like. The processor and transceiver may also be fabricated using a variety of IC process technologies such as complementary metal oxide semiconductor (complementary metal oxide semiconductor, CMOS), N-type metal oxide semiconductor (NMOS), P-type metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (bipolar junction transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

The communication apparatus described in the above embodiment may be a terminal device (such as the first type terminal device in the foregoing method embodiment) or a network device (such as the network device in the foregoing method embodiment), but the scope of the communication apparatus described in the present disclosure is not limited thereto, and the structure of the communication apparatus may not be limited by fig. 5. The communication means may be a stand-alone device or may be part of a larger device. For example, the communication device may be:

(1) A stand-alone integrated circuit IC, or chip, or a system-on-a-chip or subsystem;

(2) A set of one or more ICs, optionally including storage means for storing data, a computer program;

(3) An ASIC, such as a Modem (Modem);

(4) Modules that may be embedded within other devices;

(5) A receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handset, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligent device, and the like;

(6) Others, and so on.

For the case where the communication device may be a chip or a chip system, reference may be made to the schematic structure of the chip shown in fig. 6. The chip shown in fig. 6 includes a processor 601 and an interface 602. Wherein the number of processors 601 may be one or more, and the number of interfaces 602 may be a plurality.

For the case where the chip is used to implement the functions of the network device in the embodiments of the present application:

a processor 601 for implementing S102 in fig. 2, and the like.

An interface 602 for implementing S202 in fig. 2, and the like.

For the case where the chip is used to implement the functions of the first type of terminal device in the embodiments of the present application:

a processor 601 for implementing S103 and the like in fig. 3.

An interface 602 for implementing S203 and the like in fig. 10.

Optionally, the chip further comprises a memory 603, the memory 603 being for storing the necessary computer programs and data.

Those of skill in the art will further appreciate that the various illustrative logical blocks (illustrative logical block) and steps (step) described in connection with the embodiments of the disclosure may be implemented by electronic hardware, computer software, or combinations of both. Whether such functionality is implemented as hardware or software depends upon the particular application and design requirements of the overall system. Those skilled in the art may implement the described functionality in varying ways for each particular application, but such implementation is not to be understood as beyond the scope of the embodiments of the present disclosure.

The disclosed embodiments also provide a communication system comprising the communication apparatus as a terminal device (e.g. the first type of terminal device in the foregoing method embodiment) and the communication apparatus as a network device (e.g. the network device in the foregoing method embodiment) in the foregoing fig. 4 embodiment, or the system comprises the communication apparatus as a terminal device (e.g. the first type of terminal device in the foregoing method embodiment) and the communication apparatus as a network device (e.g. the network device in the foregoing method embodiment) in the foregoing fig. 5 embodiment.

The present disclosure also provides a readable storage medium having instructions stored thereon which, when executed by a computer, perform the functions of any of the method embodiments described above.

The present disclosure also provides a computer program product which, when executed by a computer, performs the functions of any of the method embodiments described above.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer programs. When the computer program is loaded and executed on a computer, the flow or functions described in accordance with the embodiments of the present disclosure are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer program may be stored in or transmitted from one computer readable storage medium to another, for example, by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means from one website, computer, server, or data center. The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.

Those of ordinary skill in the art will appreciate that: the various numbers of first, second, etc. referred to in this disclosure are merely for ease of description and are not intended to limit the scope of embodiments of this disclosure, nor to indicate sequencing.

At least one of the present disclosure may also be described as one or more, a plurality may be two, three, four or more, and the present disclosure is not limited. In the embodiment of the disclosure, for a technical feature, the technical features in the technical feature are distinguished by "first", "second", "third", "a", "B", "C", and "D", and the technical features described by "first", "second", "third", "a", "B", "C", and "D" are not in sequence or in order of magnitude.

The correspondence relationships shown in the tables in the present disclosure may be configured or predefined. The values of the information in each table are merely examples, and may be configured as other values, and the present disclosure is not limited thereto. In the case of the correspondence between the configuration information and each parameter, it is not necessarily required to configure all the correspondence shown in each table. For example, in the table in the present disclosure, the correspondence shown by some rows may not be configured. For another example, appropriate morphing adjustments, e.g., splitting, merging, etc., may be made based on the tables described above. The names of the parameters indicated in the tables may be other names which are understood by the communication device, and the values or expressions of the parameters may be other values or expressions which are understood by the communication device. When the tables are implemented, other data structures may be used, for example, an array, a queue, a container, a stack, a linear table, a pointer, a linked list, a tree, a graph, a structure, a class, a heap, a hash table, or a hash table.

Predefined in this disclosure may be understood as defining, predefining, storing, pre-negotiating, pre-configuring, curing, or pre-sintering.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

The foregoing is merely specific embodiments of the disclosure, but the protection scope of the disclosure is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the disclosure, and it is intended to cover the scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

A method of time domain resource allocation performed by a network device, the method comprising:

acquiring a first default time domain resource allocation table defined for first type terminal equipment;

transmitting a downlink data channel to the first type terminal equipment based on the first default time domain resource allocation table;

the first default time domain resource allocation table is used for allocating time domain resources for downlink data channels related to the first type of terminal equipment, the first default time domain resource allocation table is different from the second default time domain resource allocation table, and the second default time domain resource allocation table is used for allocating time domain resources for downlink data channels related to the second type of terminal equipment.
The method of claim 1, wherein the first default time domain resource allocation table comprises: and a plurality of sets of first time domain allocation parameters, wherein the first time domain allocation parameters are used for determining time domain resources allocated for the downlink data channels related to the first type of terminal equipment.
The method of claim 1, wherein the second default time domain resource allocation table comprises: and a plurality of sets of second time domain allocation parameters, wherein the second time domain allocation parameters are used for determining time domain resources allocated for the downlink data channels related to the second type of terminal equipment.
The method of any one of claim 1 to 3, wherein,

at least one set of first time domain allocation parameters in the first default time domain resource allocation table is different from a corresponding set of second time domain allocation parameters in the second default time domain resource allocation table.
The method of any of claims 1-4, wherein each set of first time domain allocation parameters in the first default time domain resource allocation table comprises at least one of:

mapping the position of a demodulation reference signal (DMRS) of the type A;

a first mapping type of a downlink data channel;

first time slot offset K ₀ ；

A first starting OFDM symbol S of the downlink data channel;

the number of first OFDM symbols occupied by the downlink data channel L.
The method of any of claims 1-4, wherein each set of second time domain allocation parameters in the second default time domain resource allocation table comprises at least one of:

mapping the position of a demodulation reference signal (DMRS) of the type A;

a second mapping type of the downlink data channel;

second slot offset K ₀ ；

A second starting OFDM symbol S of the downlink data channel;

and the number L of the second OFDM symbols occupied by the downlink data channel.
The method of any of claims 1-4, wherein each set of first time domain allocation parameters in the first default time domain resource allocation table comprises: first time slot offset K ₀ Each set of second time domain allocation parameters in the second default time domain resource allocation table includes: second slot offset K ₀ The method comprises the steps of carrying out a first treatment on the surface of the Wherein,

a first time slot offset K in at least one set of said first time domain allocation parameters ₀ Offset from the second slot by K ₀ Are not identical.
The method of any of claims 1-4, wherein each set of first time domain allocation parameters in the first default time domain resource allocation table comprises: first time slot offset K ₀ The method comprises the steps of carrying out a first treatment on the surface of the Wherein,

based on the first slot offset K in at least one set of the first time domain allocation parameters ₀ The determined downlink data channel and the control channel associated with the downlink data channel are in different subframes.
The method of any of claims 1-4, wherein each set of first time domain allocation parameters in the first default time domain resource allocation table comprises: the first initial OFDM symbol S, each set of second time domain allocation parameters in the second default time domain resource allocation table includes: a second starting OFDM symbol S; wherein,

the first starting OFDM symbol S in at least one set of the first time domain allocation parameters is not identical to the second starting OFDM symbol S.
The method of any of claims 1-4, wherein each set of first time domain allocation parameters in the first default time domain resource allocation table comprises: a first starting OFDM symbol S; wherein,

The value of the first starting OFDM symbol S in at least one set of the first time domain allocation parameters is 0.
The method of any of claims 1-4, wherein each set of first time domain allocation parameters in the first default time domain resource allocation table comprises: the first OFDM symbol number L, each set of second time domain allocation parameters in the second default time domain resource allocation table includes: a second OFDM symbol number L; wherein,

the first OFDM symbol number L in at least one set of the first time domain allocation parameters is different from the second OFDM symbol number L.
The method of any of claims 1-4, wherein each set of first time domain allocation parameters in the first default time domain resource allocation table comprises: a first OFDM symbol number L;

the first OFDM symbol number L in at least one group of the first time domain allocation parameters is larger than the designated OFDM symbol number;

the number of the specified OFDM symbols is a second OFDM symbol number L that is the maximum value of a plurality of second OFDM symbol numbers L, where the second OFDM symbol number L belongs to a second time domain allocation parameter in the second default time domain resource allocation table.
The method of claim 12, wherein the number of designated OFDM symbols is 13.
The method of any of claims 1-4, wherein each set of first time domain allocation parameters in the first default time domain resource allocation table comprises: the first mapping type of the downlink data channel, each set of second time domain allocation parameters in the second default time domain resource allocation table includes: a second mapping type of the downlink data channel; wherein,

in the case that the first mapping type is the same as the second mapping type, the first scheme number of resource allocation schemes corresponding to the first mapping type is different from the second scheme number of resource allocation schemes corresponding to the second mapping type.
The method of claim 14, wherein the first number of schemes is greater than the second number of schemes.
A method of time domain resource allocation performed by a first type of terminal device, the method comprising:

acquiring a first default time domain resource allocation table defined for first type terminal equipment;

receiving a downlink data channel related to the first type of terminal equipment based on the first default time domain resource allocation table;

the first default time domain resource allocation table is used for allocating time domain resources for downlink data channels related to the first type of terminal equipment, the first default time domain resource allocation table is different from the second default time domain resource allocation table, and the second default time domain resource allocation table is used for allocating time domain resources for downlink data channels related to the second type of terminal equipment.
The method of claim 16, wherein the first default time domain resource allocation table comprises: and a plurality of sets of first time domain allocation parameters, wherein the first time domain allocation parameters are used for determining time domain resources allocated for the downlink data channels related to the first type of terminal equipment.
The method of claim 16 or 17, wherein,

at least one set of first time domain allocation parameters in the first default time domain resource allocation table is different from a corresponding set of second time domain allocation parameters in the second default time domain resource allocation table.
The method of any of claims 16-18, wherein each set of first time domain allocation parameters in the first default time domain resource allocation table comprises at least one of:

mapping the position of a demodulation reference signal (DMRS) of the type A;

a first mapping type of a downlink data channel;

first time slot offset K ₀ ；

A first starting OFDM symbol S of the downlink data channel;

the number of first OFDM symbols occupied by the downlink data channel L.
The method of any of claims 16-18, wherein each set of first time domain allocation parameters in the first default time domain resource allocation table comprises: first time slot offset K ₀ Each set of second time domain allocation parameters in the second default time domain resource allocation table includes: second slot offset K ₀ The method comprises the steps of carrying out a first treatment on the surface of the Wherein,

a first time slot offset K in at least one set of said first time domain allocation parameters ₀ Offset from the second slot by K ₀ Are not identical.
The method of any of claims 16-18, wherein each set of first time domain allocation parameters in the first default time domain resource allocation table comprises: first time slot offset K ₀ The method comprises the steps of carrying out a first treatment on the surface of the Wherein,

based on the first slot offset K in at least one set of the first time domain allocation parameters ₀ The determined downlink data channel and the control channel associated with the downlink data channel are in different subframes.
The method of any of claims 16-18, wherein each set of first time domain allocation parameters in the first default time domain resource allocation table comprises: the first initial OFDM symbol S, each set of second time domain allocation parameters in the second default time domain resource allocation table includes: a second starting OFDM symbol S; wherein,

the first starting OFDM symbol S in at least one set of the first time domain allocation parameters is not identical to the second starting OFDM symbol S.
The method of any of claims 16-18, wherein each set of first time domain allocation parameters in the first default time domain resource allocation table comprises: a first starting OFDM symbol S; wherein,

The value of the first starting OFDM symbol S in at least one set of the first time domain allocation parameters is 0.
The method of any of claims 16-18, wherein each set of first time domain allocation parameters in the first default time domain resource allocation table comprises: the first OFDM symbol number L, each set of second time domain allocation parameters in the second default time domain resource allocation table includes: a second OFDM symbol number L; wherein,

the first OFDM symbol number L in at least one set of the first time domain allocation parameters is different from the second OFDM symbol number L.
The method of any of claims 16-18, wherein each set of first time domain allocation parameters in the first default time domain resource allocation table comprises: a first OFDM symbol number L;

the first OFDM symbol number L in at least one group of the first time domain allocation parameters is larger than the designated OFDM symbol number;

the number of the specified OFDM symbols is a second OFDM symbol number L that is the maximum value of a plurality of second OFDM symbol numbers L, where the second OFDM symbol number L belongs to a second time domain allocation parameter in the second default time domain resource allocation table.
The method of claim 25, wherein the number of designated OFDM symbols is 13.
The method of any of claims 16-18, wherein each set of first time domain allocation parameters in the first default time domain resource allocation table comprises: the first mapping type of the downlink data channel, each set of second time domain allocation parameters in the second default time domain resource allocation table includes: a second mapping type of the downlink data channel; wherein,

in the case that the first mapping type is the same as the second mapping type, the first scheme number of resource allocation schemes corresponding to the first mapping type is different from the second scheme number of resource allocation schemes corresponding to the second mapping type.
The method of claim 27, wherein the first number of schemes is greater than the second number of schemes.
A communication device, the device comprising:

the processing module is used for acquiring a first default time domain resource allocation table defined for the first type of terminal equipment;

the receiving and transmitting module is used for transmitting a downlink data channel to the first type terminal equipment based on the first default time domain resource allocation table;

the first default time domain resource allocation table is used for allocating time domain resources for downlink data channels related to the first type of terminal equipment, the first default time domain resource allocation table is different from the second default time domain resource allocation table, and the second default time domain resource allocation table is used for allocating time domain resources for downlink data channels related to the second type of terminal equipment.
A communication device, the device comprising:

the processing module is used for acquiring a first default time domain resource allocation table defined for the first type of terminal equipment;

a transceiver module, configured to receive a downlink data channel related to the first type of terminal device based on the first default time domain resource allocation table;

the first default time domain resource allocation table is used for allocating time domain resources for downlink data channels related to the first type of terminal equipment, the first default time domain resource allocation table is different from the second default time domain resource allocation table, and the second default time domain resource allocation table is used for allocating time domain resources for downlink data channels related to the second type of terminal equipment.
A communication system comprising a network device performing the method of any of claims 1-15 and a first type of terminal device performing the method of any of claims 16-28.
A computer readable storage medium storing instructions that, when executed, cause the method of any of claims 1-28.