CN117882325A

CN117882325A - Channel transmitting method, channel receiving method, device, equipment and storage medium

Info

Publication number: CN117882325A
Application number: CN202280002658.9A
Authority: CN
Inventors: 牟勤
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: WO2024031578A1

Abstract

The embodiment of the disclosure discloses a channel sending method, a channel receiving method, a device, equipment and a storage medium, which can be applied to a communication system, wherein the method when being executed by network equipment comprises the following steps: and repeatedly transmitting a common data channel to the first type of terminal equipment, wherein the common data channel is based on the time domain resource scheduling allocated for the network equipment. By implementing the method disclosed by the invention, the coverage capability of the public data channel can be ensured based on repeated transmission of the public data channel, and the data transmission quality of the public data channel can be effectively improved.

Description

Channel transmitting method, channel receiving method, device, equipment and storage medium

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a channel sending method, a channel receiving method, a device, equipment, and a storage medium.

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, aiming at the processing scheme of bandwidth reduction in the RedCap technology, the coverage capability of the common data channel may be affected, and the data transmission quality of the common data channel may be reduced.

Disclosure of Invention

The embodiment of the disclosure provides a channel sending method, a channel receiving 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, can ensure the coverage capacity of a common data channel based on repeated sending of the common data channel, and effectively improve the data transmission quality of the common data channel.

In a first aspect, an embodiment of the present disclosure provides a channel transmission method, applied to a network device, where the method includes:

and repeatedly transmitting a common data channel to the first type of terminal equipment, wherein the common data channel is based on the time domain resource scheduling allocated for the network equipment.

In one embodiment, the repeatedly transmitting the common data channel to the first type of terminal device includes:

determining the repetition number of transmitting a common data channel on the time domain resource;

and repeatedly sending the common data channel to the first type terminal equipment according to the repetition times.

In one embodiment, the determining the number of repetitions of transmitting a common data channel over the time domain resource includes:

determining a candidate times set, wherein the candidate times set comprises: a plurality of candidate times;

and selecting one candidate number from the plurality of candidate numbers as the repetition number.

determining a time domain allocation parameter, wherein the time domain allocation parameter is used for determining the time domain resources allocated to the network equipment;

and determining the repetition times according to the time domain distribution parameters.

In one embodiment, the determining the repetition number according to the time domain allocation parameter includes:

obtaining a first default time domain resource allocation table related to the first type of terminal equipment, wherein the first default time domain resource allocation table comprises: a plurality of groups of first candidate allocation parameters and candidate times corresponding to each group of the first candidate allocation parameters;

determining first candidate allocation parameters which are the same as the time domain allocation parameters from the plurality of groups of first candidate allocation parameters;

And taking the candidate times corresponding to the same first candidate distribution parameters as the repetition times.

In one embodiment, the method further comprises:

and sending an indication message to the first type terminal equipment, wherein the indication message is used for indicating the repetition times.

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

the indication message includes an indication field, a value of the indication field being used to indicate the number of repetitions, the value of the indication field being configured based on an identification of a selected number of candidates of the network device from a plurality of candidate sets of the number of candidates, the selected number of candidates being the number of repetitions.

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

the indication message includes indication information of a time domain allocation parameter, the time domain allocation parameter is used for determining the time domain resource allocated to the network device, and the indication information is used for determining the repetition number.

In one embodiment, the indication message is downlink control information DCI.

In one embodiment, the first candidate allocation parameters include: the number of the OFDM symbols occupied by the common data channel; wherein,

The first candidate times corresponding to the first OFDM symbol number are different from the second candidate times corresponding to the second OFDM symbol number, wherein the first OFDM symbol number is different from the second OFDM symbol number.

In one embodiment, the first candidate allocation parameters include at least one of:

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

the mapping type of the common data channel;

time slot offset K ₀ ；

A starting OFDM symbol S of the common data channel;

the number of OFDM symbols occupied by the common data channel L.

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

the first category number of the first allocation parameter combination in the first default time domain resource allocation table is smaller than the second category number, and the first allocation parameter combination comprises: at least two of the first candidate allocation parameters, the second category number being a number of second allocation parameter combination categories, the second allocation parameter combination comprising: and the corresponding at least two second candidate allocation parameters belong to a second default time domain resource allocation table related to second type terminal equipment, and the first type terminal equipment is different from the second type terminal equipment.

In one embodiment, the second candidate allocation parameters include at least one of:

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

the mapping type of the common data channel;

time slot offset K ₀ ；

A starting OFDM symbol S of the common data channel;

the number of OFDM symbols occupied by the common data channel L.

In a second aspect, an embodiment of the present disclosure provides another channel receiving method, applied to a first type of terminal device, including:

and receiving a common data channel repeatedly transmitted by the network equipment, wherein the common data channel is based on the time domain resource scheduling allocated to the network equipment.

In one embodiment, the method further comprises:

and receiving an indication message sent by the network equipment, wherein the indication message is used for indicating the repetition times of the sent common data channel.

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

In one embodiment, the indication message is downlink control information DCI.

In one embodiment, the method further comprises:

determining the identification of the selected candidate times according to the value of the indication field;

and determining the selected candidate times from the candidate times set as the repetition times according to the identification of the selected candidate times.

In one embodiment, the method further comprises:

determining first candidate allocation parameters which are the same as the time domain allocation parameters indicated by the indication information from the plurality of groups of first candidate allocation parameters;

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

the mapping type of the common data channel;

time slot offset K ₀ ；

A starting OFDM symbol S of the common data channel;

the number of OFDM symbols occupied by the common data channel L.

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

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, including a processor, when the processor invokes a computer program in a memory, to perform the channel transmission method described in the first aspect.

In a sixth aspect, an embodiment of the present disclosure provides a communication apparatus, including a processor, when the processor invokes a computer program in a memory, to perform the channel receiving method described in the second aspect.

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 channel transmission 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 channel receiving 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 channel transmission method described in the first aspect.

In a tenth aspect, embodiments of the present disclosure provide a communications 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 channel reception method of the second aspect described above.

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 the network device, where the instructions, when executed, cause the network device to perform the channel transmission method of the first aspect.

In a thirteenth aspect, an embodiment of the present disclosure provides a readable storage medium storing 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 channel receiving 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 channel transmission 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 channel reception 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 channel transmission 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 channel reception method of the second aspect described above.

In summary, the channel sending method, the channel receiving method, the device, the equipment, the chip system, the storage medium, the computer program and the computer program product provided in the embodiments of the present disclosure may achieve the following technical effects:

and repeatedly transmitting the common data channel to the first type terminal equipment, wherein the common data channel is based on time domain resource scheduling distributed to the network equipment, so that the coverage capability of the common data channel can be ensured based on the repeated transmission of the common data channel, and the data transmission quality of the common 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 flow chart of a channel transmission method according to an embodiment of the disclosure;

fig. 3 is a flowchart of another channel transmission method according to an embodiment of the present disclosure;

fig. 4 is a flowchart of another channel transmission method according to an embodiment of the present disclosure;

fig. 5 is a flowchart of another channel transmission method according to an embodiment of the present disclosure;

fig. 6 is a flowchart of another channel transmission method according to an embodiment of the present disclosure;

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

fig. 8 is a flowchart of a channel receiving method according to an embodiment of the present disclosure;

fig. 9 is a flowchart of another channel receiving method according to an embodiment of the present disclosure;

fig. 10 is a flowchart of another channel receiving method according to an embodiment of the present disclosure;

fig. 11 is a flowchart of another channel receiving method according to an embodiment of the present disclosure;

Fig. 12 is a schematic structural diagram of a communication device according to an embodiment of the disclosure;

fig. 13 is a schematic structural view of another communication device provided in an embodiment of the present disclosure;

fig. 14 is a schematic structural diagram of a chip of an embodiment of the present 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. Downlink control information (Downlink Control Information, DCI)

The downlink control information is downlink control information carried by a downlink physical control channel (Physical Downlink Control Channel, PDCCH), and is sent to the UE by the eNB, and includes uplink and downlink resource allocation, hybrid automatic repeat request (Hybrid Automatic Repeat reQuest, HARQ), power control, and the like.

In order to better understand a channel transmission method disclosed in an embodiment of the present disclosure, a description is first given below of a communication system to which the embodiment of the present disclosure is 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 communication function, a smart car, a mobile phone (mobile phone), a wearable device, a tablet computer (Pad), a computer with 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 channel transmission method and apparatus provided by the present disclosure are described in detail below with reference to the accompanying drawings. Fig. 2 is a flowchart of a channel transmission method according to an embodiment of the present disclosure, where the method is performed by a network device. The channel transmission method in this embodiment may be applied to a network device, for example, a mobile phone, a tablet with a mobile communication function, a smart watch, or the like, which is not limited.

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

s102: and repeatedly transmitting a common data channel to the first type of terminal equipment, wherein the common data channel is based on the time domain resource scheduling allocated for the network equipment.

The first type of terminal equipment refers to corresponding type of terminal equipment applicable to the channel transmission 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 common data channel may refer to a downlink channel shared by a plurality of first type terminal devices.

In this embodiment, the common data channel is repeatedly sent to the first type terminal device, where the common data channel is based on the time domain resource schedule allocated to the network device, so that coverage capability of the common data channel can be guaranteed based on the repeated sending of the common data channel, and data transmission quality of the common data channel is effectively improved.

Fig. 3 is a flow chart of another channel transmission method provided in an embodiment of the present disclosure, where the channel transmission method in the embodiment may be applied in a network device, as shown in fig. 3, and the method may include, but is not limited to, the following steps:

s103: the number of repetitions of transmitting a common data channel over a time domain resource is determined.

The repetition number refers to the number of times of repeatedly sending the common data channel on the time domain resource.

S203: and repeatedly transmitting the common data channel to the first type terminal equipment according to the repetition times.

In this embodiment, by determining the number of repetitions of transmitting the common data channel on the time domain resource, the common data channel is repeatedly transmitted to the first type terminal device according to the number of repetitions, so that the reliability of the number of repetitions of transmitting the common data channel to the first type terminal device can be effectively improved, thereby effectively improving the channel transmission effect.

Fig. 4 is a flowchart of another channel transmission method provided in the embodiment of the present disclosure, where the channel transmission method in the embodiment may be applied to a network device, as shown in fig. 4, and the method may include, but is not limited to, the following steps:

s104: determining a candidate times set, wherein the candidate times set comprises: a plurality of candidate times.

The candidate number refers to a value that is preconfigured and can be used as the repetition number. And the candidate times set may refer to a set composed of a plurality of candidate times.

S204: one candidate number is selected from the plurality of candidate numbers as the repetition number.

S304: and repeatedly transmitting the common data channel to the first type terminal equipment according to the repetition times.

In this embodiment, the candidate times set is determined, where the candidate times set includes: the method comprises the steps of selecting a candidate number from a plurality of candidate numbers as a repetition number, repeatedly sending a common data channel to a first type terminal device according to the repetition number, and providing reliable reference information for determining the repetition number based on a candidate number set, so that the repetition number can be rapidly and accurately determined.

Fig. 5 is a flowchart of another channel transmission method provided in the embodiment of the present disclosure, where the channel transmission method in the embodiment may be applied to a network device, as shown in fig. 5, and the method may include, but is not limited to, the following steps:

s105: a time domain allocation parameter is determined, wherein the time domain allocation parameter is used to determine time domain resources allocated for the network device.

The time domain allocation parameter refers to a corresponding parameter in the time domain resource allocation process.

S205: and determining the repetition times according to the time domain distribution parameters.

S305: and repeatedly transmitting the common data channel to the first type terminal equipment according to the repetition times.

In this embodiment, by determining a time domain allocation parameter, where the time domain allocation parameter is used to determine a time domain resource allocated to a network device, and determining the repetition number according to the time domain allocation parameter, reliability in the repetition number determining process may be effectively improved based on the time domain allocation parameter.

Fig. 6 is a flowchart of another channel transmission method provided in an embodiment of the present disclosure, where the channel transmission method in the embodiment may be applied in a network device, as shown in fig. 6, and the method may include, but is not limited to, the following steps:

s106: a time domain allocation parameter is determined, wherein the time domain allocation parameter is used to determine time domain resources allocated for the network device.

S206: obtaining a first default time domain resource allocation table related to the first type of terminal equipment, wherein the first default time domain resource allocation table comprises: a plurality of sets of first candidate allocation parameters, and a number of candidates corresponding to each set of first candidate allocation parameters.

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.

The candidate allocation parameters are parameters that may be used as time domain allocation parameters. The first candidate allocation parameters refer to candidate allocation parameters stored in a first default time domain resource allocation table.

S306: a first candidate allocation parameter that is the same as the time domain allocation parameter is determined from the plurality of sets of first candidate allocation parameters.

S406: and taking the candidate times corresponding to the same first candidate allocation parameters as the repetition times.

S506: and repeatedly transmitting the common data channel to the first type terminal equipment according to the repetition times.

In this embodiment, a first default time domain resource allocation table related to a first type of terminal device is obtained, where the first default time domain resource allocation table includes: the first candidate allocation parameters and the candidate times corresponding to each group of the first candidate allocation parameters are determined, the first candidate allocation parameters which are the same as the time domain allocation parameters are determined from the first candidate allocation parameters, the candidate times corresponding to the same first candidate allocation parameters are used as the repetition times, and the suitability between the obtained repetition times and an application scene can be effectively improved based on a first default time domain resource allocation table.

Fig. 7 is a flowchart of another channel transmission method provided in the embodiment of the present disclosure, where the channel transmission method in the embodiment may be applied to a network device, as shown in fig. 7, and the method may include, but is not limited to, the following steps:

S107: and sending an indication message to the first type terminal equipment, wherein the indication message is used for indicating the repetition times.

The instruction message is a message for indicating the repetition number.

In this embodiment, by sending an indication message to the first type of terminal device, where the indication message is used to indicate the repetition number, the obtained indication message may provide a reliable reference for determining the repetition number for the first type of terminal device.

The embodiment of the disclosure also provides a channel sending method, where the indication message includes an indication field, a value of the indication field is used for indicating the repetition number, and the value of the indication field is configured based on an identifier of a candidate number selected by the network device from a plurality of candidate numbers in the candidate number set, and the selected candidate number is the repetition number, so that the accuracy of the indication message for indicating the repetition number can be effectively improved.

The indication field refers to a region used for indicating the repetition number in the indication message.

The embodiment of the disclosure also provides a channel sending method, in which the indication message includes indication information of a time domain allocation parameter, the time domain allocation parameter is used for determining time domain resources allocated to the network device, and the indication information is used for determining the repetition number, so that indication content of the indication message can be enriched, and practicability of the indication message is effectively improved.

The indication information refers to related information used for determining the repetition number in the indication information.

The embodiment of the disclosure also provides a channel sending method, and the indication message is downlink control information DCI.

The downlink control information (Downlink Control Information, DCI) is downlink control information carried by a downlink physical control channel (Physical Downlink Control Channel, PDCCH) and sent to the UE by the eNB, and includes uplink and downlink resource allocation, hybrid automatic repeat request (Hybrid Automatic Repeat reQuest, HARQ), power control, and the like.

The embodiment of the disclosure also provides a channel sending method, wherein the first candidate allocation parameters comprise: the number of Orthogonal Frequency Division Multiplexing (OFDM) symbols occupied by the common data channel, wherein the first candidate times corresponding to the number of the first OFDM symbols are different from the second candidate times corresponding to the number of the second OFDM symbols, and the number of the first OFDM symbols is different from the number of the second OFDM symbols, so that the practicability of the first candidate allocation parameters can be effectively improved.

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 candidate number refers to a candidate number corresponding to the first OFDM symbol number. The second candidate number is the candidate number corresponding to the second OFDM symbol number.

The first OFDM symbol number refers to the number of OFDM symbols occupied by the common data channel included in the first candidate allocation parameter. And the second OFDM symbol number refers to the number of OFDM symbols occupied by the common data channel included in the second candidate allocation parameter.

The embodiment of the disclosure also provides a channel sending method, wherein the first candidate allocation parameters comprise at least one of the following: demodulation reference signal DMRS position of mapping type a, mapping type of common data channel, slot offset K ₀ The initial OFDM symbol S of the common data channel and the number L of OFDM symbols occupied by the common data channel, so that the flexibility of the indication content of the first candidate allocation parameters can be effectively improved 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 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 starting OFDM symbol S refers to a starting OFDM symbol of the common data channel indicated by the first candidate allocation parameter.

The number of OFDM symbols refers to the number of OFDM symbols occupied by the common data channel.

The embodiment of the present disclosure further provides a channel transmission method, where the number of first types of first allocation parameter combinations in a first default time domain resource allocation table is smaller than the number of second types, and the first allocation parameter combinations include: at least two first candidate allocation parameters, the second category number being a number of second allocation parameter combination categories, the second allocation parameter combination comprising: the corresponding at least two second candidate allocation parameters belong to a second default time domain resource allocation table related to the second type of terminal equipment, and the first type of terminal equipment is different from the second type of terminal equipment, so that the practicability of the first default time domain resource allocation table can be effectively improved.

The first category number refers to the category number of a combination formed by a plurality of first allocation parameters in the first default time domain resource allocation table.

The second type of terminal device may refer to a terminal device having a capability stronger than that of the first type of terminal device. The second default time domain resource allocation table is a default time domain resource allocation table configured by the pointer to the second type of terminal equipment, and may include a plurality of second candidate allocation parameters. And the second candidate allocation parameters refer to candidate allocation parameters configured in the second default time domain resource allocation table in advance.

The second category number refers to the number of second allocation parameter combination categories.

The embodiment of the disclosure also provides a channel sending method, and the second candidate allocation parameters comprise at least one of the following: demodulation reference signal DMRS position of mapping type a, mapping type of common data channel, slot offset K ₀ The starting OFDM symbol S of the common data channel and the number L of OFDM symbols occupied by the common data channel, thereby effectively improving the indication flexibility of the second candidate allocation parameters.

For example, assume that the first candidate allocation parameters in the first default time domain resource allocation table include: demodulation reference signal DMRS position of mapping type a (parameter a), mapping type of common data channel (parameter B), slot offset K ₀ (parameter C), the starting OFDM symbol S of the common data channel (parameter D), and the number of OFDM symbols occupied by the common data channel L (parameter E), the first default time domain resource allocation table may include the following table 1 (including the number of repetitions, specifically the following table 3):

it will be appreciated that each element in table 1 is 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 first allocation parameter combination may be a combination of at least two of the above parameters, for example any of (a, B), (a, C), (a, D), (a, E), (B, C), (B, D), (B, E), (C, D), (C, E) or (D, E). And the first category number of the first allocation parameter combination may be respectively: (a, B) the first species number is 4; (a, C) the first species number is 3; (a, D) the first species number is 5; (a, E) the first species number is 6; (B, C) the first species number is 2; (B, D) the first species number is 5; (B, E) the first species number is 5; (C, D) the first species number is 5; (C, E) the first species number is 5; (D, E) the first species number is 7.

Assume that the second candidate allocation parameters in the second default time domain resource allocation table include: demodulation reference signal DMRS position of mapping type a (parameter a), mapping type of common data channel (parameter B), slot offset K ₀ (parameter C), the starting OFDM symbol S of the common data channel (parameter D), and the number of OFDM symbols occupied by the common data channel L (parameter E), the second default time domain resource allocation table may be as shown in table 2 below:

it will be appreciated that each element in table 2 is 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 2. It will be appreciated by those skilled in the art that the values of each element in Table 2 are a separate embodiment.

The second distribution parameter combination may be a combination of at least two of the above parameters, for example, any one of (a, B), (a, C), (a, D), (a, E), (B, C), (B, D), (B, E), (C, D), (C, E), or (D, E). And the second kinds of numbers of the second allocation parameter combinations may be respectively: (A, B) the first species number is 6; (a, C) the first species number is 3; (a, D) a first category number of 13; (a, E) the first species number is 16; (B, C) the first species number is 2; (B, D) the first species number is 10; (B, E) the first species number is 13; (C, D) the first species number is 10; (C, E) the first species number is 11; (D, E) the first species number is 23.

Thus, the first category number of the first allocation parameter combinations in the first default time domain resource allocation table may be configured to be smaller than the second category number.

Of course, the first allocation parameter combination may be any combination of three, four, or five of the plurality of first candidate allocation parameters, and the corresponding second allocation parameter combination may also be any combination of three, four, or five of the plurality of second candidate allocation parameters, so the characteristics of the number of kinds of different first allocation parameter combinations and second allocation parameter combinations may be referred to the above examples and will not be repeated herein.

The embodiment of the disclosure also provides a channel sending method, wherein the capability of the first type of terminal equipment is lower than that of the second type of terminal equipment.

The embodiment of the disclosure also provides a channel sending method, wherein the common data channel is a physical downlink shared channel PDSCH shared by a plurality of first type terminal devices.

Among them, a Physical Downlink Shared CHannel (PDSCH), which is one of the physical Downlink channels, may be used to carry data from a Downlink Shared CHannel (DSCH).

Fig. 8 is a flowchart of a channel receiving method provided by an embodiment of the present disclosure, where the channel receiving method in the embodiment may be applied to a first type of terminal device, as shown in fig. 8, and the method may include, but is not limited to, the following steps:

s108: and receiving a common data channel repeatedly transmitted by the network equipment, wherein the common data channel is based on the time domain resource scheduling allocated to the network equipment.

In this embodiment, by receiving a common data channel repeatedly sent by a network device, where the common data channel is based on time domain resource scheduling allocated to the network device, reliability of the common data channel received by the first type terminal device may be effectively improved, and data transmission quality of the common data channel may be improved.

Fig. 9 is a flowchart of another channel receiving method provided in the embodiment of the present disclosure, where the channel receiving method in the embodiment may be applied to a first type of terminal device, as shown in fig. 9, and the method may include, but is not limited to, the following steps:

s109: and receiving an indication message sent by the network equipment, wherein the indication message is used for indicating the repetition times of the sent common data channel.

In this embodiment, the indication message is sent by the receiving network device, where the indication message is used to indicate the number of repetitions of the sent common data channel, so that reliable reference information can be provided for determining the number of repetitions of the sent common data channel for the first type of terminal device.

The embodiment of the disclosure also provides a channel receiving method, where the indication message includes an indication field, a value of the indication field is used for indicating the repetition number, and the value of the indication field is configured based on an identifier of a candidate number selected by the network device from a plurality of candidate numbers in the candidate number set, and the selected candidate number is the repetition number, so that the indication accuracy of the indication message can be effectively improved.

The embodiment of the disclosure also provides a channel receiving method, where the indication message includes indication information of a time domain allocation parameter, the time domain allocation parameter is used for determining time domain resources allocated to the network device, and the indication information is used for determining repetition times, so that reliability of the indication message can be effectively improved.

The embodiment of the disclosure also provides a channel receiving method, and the indication message is downlink control information DCI.

Fig. 10 is a flowchart of another channel receiving method provided in the embodiment of the present disclosure, where the channel receiving method in the embodiment may be applied to a first type of terminal device, as shown in fig. 10, and the method may include, but is not limited to, the following steps:

s110: and receiving an indication message sent by the network equipment, wherein the indication message is used for indicating the repetition times of the sent common data channel.

The indication message includes an indication field, a value of the indication field is used for indicating the repetition number, and the value of the indication field is configured based on an identification of a candidate number selected by the network device from a plurality of candidate numbers in the candidate number set, and the selected candidate number is the repetition number.

S210: and determining the identification of the selected candidate times according to the value of the indication field.

S310: and determining the selected candidate times from the candidate times set as the repetition times according to the identification of the selected candidate times.

In this embodiment, the identifier of the selected candidate number is determined according to the value of the indication field, and the selected candidate number is determined as the repetition number from the candidate number set according to the identifier of the selected candidate number, so that reliability in the determination process of the repetition number can be effectively improved, and applicability of the obtained repetition number is ensured.

Fig. 11 is a flowchart of another channel receiving method provided in the embodiment of the present disclosure, where the channel receiving method in the embodiment may be applied to a first type of terminal device, as shown in fig. 11, and the method may include, but is not limited to, the following steps:

s111: and receiving an indication message sent by the network equipment, wherein the indication message is used for indicating the repetition times of the sent common data channel.

The indication message comprises indication information of time domain distribution parameters, the time domain distribution parameters are used for determining time domain resources distributed to the network equipment, and the indication information is used for determining the repetition times.

S211: obtaining a first default time domain resource allocation table related to the first type of terminal equipment, wherein the first default time domain resource allocation table comprises: a plurality of sets of first candidate allocation parameters, and a number of candidates corresponding to each set of first candidate allocation parameters.

S311: from the plurality of sets of first candidate allocation parameters, the first candidate allocation parameters that are the same as the time domain allocation parameters indicated by the indication information are determined.

S411: and taking the candidate times corresponding to the same first candidate allocation parameters as the repetition times.

In this embodiment, a first default time domain resource allocation table related to a first type of terminal device is obtained, where the first default time domain resource allocation table includes: the method comprises the steps of determining a plurality of groups of first candidate distribution parameters and candidate times corresponding to each group of first candidate distribution parameters from the plurality of groups of first candidate distribution parameters, determining the first candidate distribution parameters which are the same as the time domain distribution parameters indicated by the indication information, and taking the candidate times corresponding to the same first candidate distribution parameters as the repetition times, so that the accuracy of the obtained repetition times can be effectively improved based on a first default time domain resource distribution table.

The embodiment of the disclosure also provides a channel receiving method, wherein the first candidate allocation parameters comprise: the number of Orthogonal Frequency Division Multiplexing (OFDM) symbols occupied by the common data channel, wherein the first candidate times corresponding to the number of the first OFDM symbols are different from the second candidate times corresponding to the number of the second OFDM symbols, and the number of the first OFDM symbols is different from the number of the second OFDM symbols, so that the practicability of the first candidate allocation parameters in the time domain resource allocation process can be effectively improved.

The embodiment of the disclosure also provides a channel receiving method, wherein the first candidate allocation parameters comprise at least one of the following: demodulation reference signal DMRS position of mapping type a, mapping type of common data channel, slot offset K ₀ The initial OFDM symbol S of the common data channel and the number L of OFDM symbols occupied by the common data channel can effectively improve the indication flexibility of the first candidate allocation parameters.

The embodiment of the disclosure also provides a channel receiving method, wherein the first category number of the first allocation parameter combination in the first default time domain resource allocation table is smaller than the second category number, and the first allocation parameter combination comprises: at least two first candidate allocation parameters, the second category number being a number of second allocation parameter combination categories, the second allocation parameter combination comprising: the corresponding at least two second candidate allocation parameters belong to a second default time domain resource allocation table related to the second type of terminal equipment, and the first type of terminal equipment is different from the second type of terminal equipment, so that the practicability of the first default time domain resource allocation table can be effectively improved.

The embodiment of the disclosure also provides a channel receiving method, wherein the second candidate allocation parameters comprise at least one of the following: demodulation reference signal DMRS position of mapping type a, mapping type of common data channel, slot offset K ₀ The initial OFDM symbol S of the common data channel and the number L of OFDM symbols occupied by the common data channel can effectively improve the indication flexibility of the second candidate allocation parameters.

The embodiment of the disclosure also provides a channel receiving method, wherein the capability of the first type of terminal equipment is lower than that of the second type of terminal equipment.

The embodiment of the disclosure also provides a channel receiving method, wherein the common data channel is a physical downlink shared channel PDSCH shared by a plurality of first type terminal devices.

For example, the above-described channel transmission method and channel reception method may be exemplified as follows:

(1) A transmission scheme for a common data channel of a first type of terminal supports repeated transmission of the common data channel in the time domain.

(2) Based on (1), the number of times the common data channel is repeatedly transmitted in the time domain is indicated based on the control channel DCI.

(3) Based on (2), an independent indication field is defined in DCI to indicate the number of retransmission times. Specifically, the protocol predefines a set of repetition transmissions, DCI indicating one element in this set.

(4) And (2) based on the step (2), carrying out joint coding on the repeated transmission times and the information in the default time domain resource allocation table to form a new default time domain resource allocation table. Specifically, the information of the number of repeated transmissions may be added to the default time domain resource allocation table. An independent indication field is defined in the DCI to indicate the Row index. The following is an example.

(5) Based on (4), table 3 may be as follows:

it will be appreciated that each element in table 3 is independent and is illustratively listed in the same table, but does 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 3. It will be appreciated by those skilled in the art that the values of each element in Table 3 are a separate embodiment.

(6) Based on (4), the number of repeated transmissions supported correspondingly is different for different common data channel time domain continuous OFDM symbols.

(7) Based on (4), the combination of at least two parameters among the supported plurality of candidate allocation parameters is reduced compared to the original default time domain resource allocation table for the first default time domain resource allocation table designed for the first terminal type. For example, the combination scheme of the first starting OFDM symbol of the downlink data channel and the number of first OFDM symbols occupied by the downlink data channel in the original table is 16, but as shown in the following table 4, there are only the combination schemes of the first starting OFDM symbol of the 7 downlink data channels and the number of first OFDM symbols occupied by the downlink data channel.

It will be appreciated that each of the elements in table 4 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 4. It will be appreciated by those skilled in the art that the values of each of the elements in Table 4 are a separate embodiment.

Fig. 12 is a schematic structural diagram of a communication device according to an embodiment of the disclosure. The communication device 120 shown in fig. 12 may include a transceiver module 1201 and a processing module 1202. The transceiver module 1201 may include a transmitting module for implementing a transmitting function and/or a receiving module for implementing a receiving function, and the transceiver module 1201 may implement the transmitting function and/or the receiving function.

The communication device 120 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 120 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 120, on the network device side, comprising:

a transceiver module 1201 for:

Optionally, the device further includes:

a processing module 1202 is configured to determine a number of repetitions of transmitting a common data channel over a time domain resource.

Optionally, the transceiver module 1201 is further configured to repeatedly send the common data channel to the first type of terminal device according to the repetition number.

Optionally, the processing module 1202 is further configured to determine a candidate number of times set, where the candidate number of times set includes: a plurality of candidate times; one candidate number is selected from the plurality of candidate numbers as the repetition number.

Optionally, the processing module 1202 is further configured to determine a time domain allocation parameter, where the time domain allocation parameter is used to determine a time domain resource allocated to the network device;

Optionally, the processing module 1202 is further configured to obtain a first default time domain resource allocation table related to the first type of terminal device, where the first default time domain resource allocation table includes: a plurality of groups of first candidate allocation parameters and candidate times corresponding to each group of first candidate allocation parameters; determining first candidate allocation parameters which are the same as the time domain allocation parameters from a plurality of groups of first candidate allocation parameters; and taking the candidate times corresponding to the same first candidate allocation parameters as the repetition times.

Optionally, the transceiver module 1201 is further configured to send an indication message to the first type of terminal device, where the indication message is used to indicate the repetition number.

Optionally, the indication message includes an indication field, a value of the indication field is used to indicate a number of repetitions, and the value of the indication field is configured based on an identification of a candidate number selected by the network device from a plurality of candidate numbers in the set of candidate numbers, the selected candidate number being the number of repetitions.

Optionally, the indication message includes indication information of a time domain allocation parameter, the time domain allocation parameter is used for determining time domain resources allocated to the network device, and the indication information is used for determining the repetition number.

Optionally, the indication message is downlink control information DCI.

Optionally, the first candidate allocation parameters include: the number of OFDM symbols occupied by the common data channel; the first candidate frequency corresponding to the first OFDM symbol number is different from the second candidate frequency corresponding to the second OFDM symbol number, wherein the first OFDM symbol number is different from the second OFDM symbol number.

Optionally, the first candidate allocation parameter comprises at least one of:

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

The mapping type of the common data channel;

time slot offset K ₀ ；

A starting OFDM symbol S of the common data channel;

the number of OFDM symbols occupied by the common data channel L.

Optionally, the first category number of the first allocation parameter combination in the first default time domain resource allocation table is smaller than the second category number, and the first allocation parameter combination includes: at least two first candidate allocation parameters, the second category number being a number of second allocation parameter combination categories, the second allocation parameter combination comprising: and the corresponding at least two second candidate allocation parameters belong to a second default time domain resource allocation table related to the second type of terminal equipment, and the first type of terminal equipment is different from the second type of terminal equipment.

Optionally, the second candidate allocation parameter comprises at least one of:

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

the mapping type of the common data channel;

time slot offset K ₀ ；

A starting OFDM symbol S of the common data channel;

the number of OFDM symbols occupied by the common data channel L.

By implementing the method disclosed by the invention, the network equipment can repeatedly send the common data channel to the first type terminal equipment, wherein the common data channel is based on time domain resource scheduling distributed to the network equipment, and the coverage capability of the common data channel can be ensured based on the repeated sending of the common data channel, so that the data transmission quality of the common data channel is effectively improved.

Communication apparatus 120, on the side of a first type of terminal device, comprising:

a transceiver module 1201, configured to receive a common data channel repeatedly sent by a network device, where the common data channel is based on a time domain resource schedule allocated to the network device.

Optionally, the transceiver module 1201 is further configured to receive an indication message sent by the network device, where the indication message is used to indicate the number of repetitions of the common data channel that is sent.

Optionally, the indication message is downlink control information DCI.

Optionally, the device further includes:

a processing module 1202 for determining an identification of the selected candidate number of times based on the value of the indication field; and determining the selected candidate times from the candidate times set as the repetition times according to the identification of the selected candidate times.

Optionally, the processing module 1202 is further configured to obtain a first default time domain resource allocation table related to the first type of terminal device, where the first default time domain resource allocation table includes: a plurality of groups of first candidate allocation parameters and candidate times corresponding to each group of first candidate allocation parameters; determining first candidate distribution parameters which are the same as the time domain distribution parameters indicated by the indication information from a plurality of groups of first candidate distribution parameters; and taking the candidate times corresponding to the same first candidate allocation parameters as the repetition times.

Optionally, the first candidate allocation parameter comprises at least one of:

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

the mapping type of the common data channel;

time slot offset K ₀ ；

A starting OFDM symbol S of the common data channel;

the number of OFDM symbols occupied by the common data channel L.

By implementing the method, the first type terminal equipment can receive the common data channel repeatedly sent by the network equipment, wherein the common data channel is based on time domain resource scheduling distributed to the network equipment, so that the reliability of the common data channel received by the first type terminal equipment can be effectively improved, and the data transmission quality of the common data channel can be improved.

Fig. 13 is a schematic structural diagram of another communication device according to an embodiment of the present disclosure. The communication device 130 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 that supports the terminal device to implement the foregoing method, or may be a chip, a chip system, or a processor that supports 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 communications device 130 may include one or more processors 1301. Processor 1301 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 130 may further include one or more memories 1302, on which a computer program 1304 may be stored, and a processor 1301 may store a computer program 1303, where the processor 1301 executes the computer program 1304 and/or the computer program 1303, so that the communication device 130 performs the method described in the above method embodiments. Optionally, the memory 1302 may also store data. The communication device 130 and the memory 1302 may be provided separately or may be integrated.

Optionally, the communication device 130 may further include a transceiver 1305, an antenna 1306. The transceiver 1305 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, etc. for implementing a transceiver function. The transceiver 1305 may include a receiver, which may be referred to as a receiver or a receiving circuit, etc., for implementing a receiving function; 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 1307 may also be included in the communication apparatus 130. Interface circuit 1307 is used to receive code instructions and transmit them to processor 1301. Processor 1301 executes the code instructions to cause communication apparatus 130 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 processor 1301. 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 1301 may store a computer program 1303, where the computer program 1303 runs on the processor 1301, and may cause the communication apparatus 130 to perform the method described in the above method embodiment. The computer program 1303 may be solidified in the processor 1301, in which case the processor 1301 may be implemented by hardware.

In one implementation, the communication device 130 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. 13. 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 structural diagram of the chip shown in fig. 14. The chip shown in fig. 14 includes a processor 1401 and an interface 1402. Wherein the number of processors 1401 may be one or more, and the number of interfaces 1402 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:

the processor 1401 is used to implement S103 in fig. 3, or to implement S104 and S204 in fig. 4, or to implement S105 and S205 in fig. 5, or the like.

An interface 1402 for implementing S102 in fig. 2, or for implementing S203 in fig. 3, or for implementing S304 in fig. 4, or 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 1401 for realizing S210 and S310 in fig. 10, or for realizing S211, S311, S411, and the like in fig. 11.

An interface 1402 for realizing S108 in fig. 8, or for realizing S109 in fig. 9, or for realizing S110 in fig. 10, or the like.

Optionally, the chip further comprises a memory 1403, the memory 1403 being used 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 presently 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. 12 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. 13 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 channel transmission method performed by a network device, the method comprising:

and repeatedly transmitting a common data channel to the first type of terminal equipment, wherein the common data channel is based on the time domain resource scheduling allocated for the network equipment.
The method of claim 1, wherein the repeatedly transmitting the common data channel to the first type of terminal device comprises:

determining the repetition number of transmitting a common data channel on the time domain resource;

and repeatedly sending the common data channel to the first type terminal equipment according to the repetition times.
The method of claim 2, wherein the determining the number of repetitions of transmitting a common data channel over the time domain resource comprises:

determining a candidate times set, wherein the candidate times set comprises: a plurality of candidate times;

and selecting one candidate number from the plurality of candidate numbers as the repetition number.
The method of claim 2, wherein the determining the number of repetitions of transmitting a common data channel over the time domain resource comprises:

determining a time domain allocation parameter, wherein the time domain allocation parameter is used for determining the time domain resources allocated to the network equipment;

And determining the repetition times according to the time domain distribution parameters.
The method of claim 4, wherein said determining said number of repetitions based on said time-domain allocation parameter comprises:

obtaining a first default time domain resource allocation table related to the first type of terminal equipment, wherein the first default time domain resource allocation table comprises: a plurality of groups of first candidate allocation parameters and candidate times corresponding to each group of the first candidate allocation parameters;

determining first candidate allocation parameters which are the same as the time domain allocation parameters from the plurality of groups of first candidate allocation parameters;

and taking the candidate times corresponding to the same first candidate distribution parameters as the repetition times.
The method of claim 2, wherein the method further comprises:

and sending an indication message to the first type terminal equipment, wherein the indication message is used for indicating the repetition times.
The method of claim 6, wherein,

the indication message includes an indication field, a value of the indication field being used to indicate the number of repetitions, the value of the indication field being configured based on an identification of a selected number of candidates of the network device from a plurality of candidate sets of the number of candidates, the selected number of candidates being the number of repetitions.
The method of claim 6, wherein,

the indication message includes indication information of a time domain allocation parameter, the time domain allocation parameter is used for determining the time domain resource allocated to the network device, and the indication information is used for determining the repetition number.
The method of any of claims 6-8, wherein the indication message is downlink control information, DCI.
The method of claim 5, wherein the first candidate allocation parameter comprises: the number of the OFDM symbols occupied by the common data channel; wherein,

the first candidate times corresponding to the first OFDM symbol number are different from the second candidate times corresponding to the second OFDM symbol number, wherein the first OFDM symbol number is different from the second OFDM symbol number.
The method of claim 5, wherein the first candidate allocation parameter comprises at least one of:

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

the mapping type of the common data channel;

time slot offset K ₀ ；

A starting OFDM symbol S of the common data channel;

the number of OFDM symbols occupied by the common data channel L.
The method of claim 11, wherein,

the first category number of the first allocation parameter combination in the first default time domain resource allocation table is smaller than the second category number, and the first allocation parameter combination comprises: at least two of the first candidate allocation parameters, the second category number being a number of second allocation parameter combination categories, the second allocation parameter combination comprising: and the corresponding at least two second candidate allocation parameters belong to a second default time domain resource allocation table related to second type terminal equipment, and the first type terminal equipment is different from the second type terminal equipment.
The method of claim 12, wherein the second candidate allocation parameter comprises at least one of:

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

the mapping type of the common data channel;

time slot offset K ₀ ；

A starting OFDM symbol S of the common data channel;

the number of OFDM symbols occupied by the common data channel L.
A channel reception method, performed by a first type of terminal device, the method comprising:

and receiving a common data channel repeatedly transmitted by the network equipment, wherein the common data channel is based on the time domain resource scheduling allocated to the network equipment.
The method of claim 14, wherein the method further comprises:

and receiving an indication message sent by the network equipment, wherein the indication message is used for indicating the repetition times of the sent common data channel.
The method of claim 15, wherein,

the indication message includes an indication field, a value of the indication field being used to indicate the number of repetitions, the value of the indication field being configured based on an identification of a selected number of candidates of the network device from a plurality of candidate sets of the number of candidates, the selected number of candidates being the number of repetitions.
The method of claim 15, wherein,

the indication message includes indication information of a time domain allocation parameter, the time domain allocation parameter is used for determining the time domain resource allocated to the network device, and the indication information is used for determining the repetition number.
The method of any of claims 15-17, wherein the indication message is downlink control information, DCI.
The method of claim 16, wherein the method further comprises:

determining the identification of the selected candidate times according to the value of the indication field;

And determining the selected candidate times from the candidate times set as the repetition times according to the identification of the selected candidate times.
The method of claim 17, wherein the method further comprises:

obtaining a first default time domain resource allocation table related to the first type of terminal equipment, wherein the first default time domain resource allocation table comprises: a plurality of groups of first candidate allocation parameters and candidate times corresponding to each group of the first candidate allocation parameters;

determining first candidate allocation parameters which are the same as the time domain allocation parameters indicated by the indication information from the plurality of groups of first candidate allocation parameters;

and taking the candidate times corresponding to the same first candidate distribution parameters as the repetition times.
The method of claim 20, wherein the first candidate allocation parameter comprises: the number of the OFDM symbols occupied by the common data channel; wherein,

the first candidate times corresponding to the first OFDM symbol number are different from the second candidate times corresponding to the second OFDM symbol number, wherein the first OFDM symbol number is different from the second OFDM symbol number.
The method of claim 20, wherein the first candidate allocation parameter comprises at least one of:

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

the mapping type of the common data channel;

time slot offset K ₀ ；

A starting OFDM symbol S of the common data channel;

the number of OFDM symbols occupied by the common data channel L.
The method of claim 22, wherein,

the first category number of the first allocation parameter combination in the first default time domain resource allocation table is smaller than the second category number, and the first allocation parameter combination comprises: at least two of the first candidate allocation parameters, the second category number being a number of second allocation parameter combination categories, the second allocation parameter combination comprising: and the corresponding at least two second candidate allocation parameters belong to a second default time domain resource allocation table related to second type terminal equipment, and the first type terminal equipment is different from the second type terminal equipment.
A communication device, the device comprising:

and the receiving and transmitting module is used for repeatedly transmitting a common data channel to the first type of terminal equipment, wherein the common data channel is based on time domain resource scheduling allocated to the network equipment.
A communication device, the device comprising:

and the receiving and transmitting module is used for receiving a common data channel repeatedly transmitted by the network equipment, wherein the common data channel is based on time domain resource scheduling distributed for the network equipment.
A communication system comprising a network device performing the method according to any of claims 1-13 and a first type of terminal device performing the method according to any of claims 14-23.
A computer readable storage medium storing instructions that, when executed, cause the method of any one of claims 1-23.