CN111345082B

CN111345082B - Method for configuring reference signal, terminal equipment and network equipment

Info

Publication number: CN111345082B
Application number: CN201880073027.XA
Authority: CN
Inventors: 林亚男
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2018-01-10
Filing date: 2018-01-10
Publication date: 2023-04-21
Anticipated expiration: 2038-01-10
Also published as: WO2019136648A1; CN111345082A

Abstract

A method, a terminal device and a network device for configuring a reference signal are provided. The method comprises the following steps: the terminal equipment receives configuration information of a demodulation reference signal (DMRS); the terminal device determines DMRS resources based on the configuration information. In the embodiment of the application, the terminal equipment receives the configuration information of the DMRS sent by the network equipment, and determines the DMRS resource based on the configuration information, so that the randomness of interference can be improved as much as possible, the same user is avoided from always or frequently colliding, and further, when the DMRS of the terminal equipment collides with other terminals, the performance of user identification can be effectively improved, and the transmission efficiency of the system is improved.

Description

Method for configuring reference signal, terminal equipment and network equipment

Technical Field

The embodiment of the invention relates to the field of communication, and more particularly relates to a method for configuring a reference signal, terminal equipment and network equipment.

Background

Currently, a fifth Generation mobile communication technology (5-Generation, 5G) New air interface (NR) system introduces inter-slot (inter-slot) and intra-slot frequency hopping (intra-slot frequency hopping). And, the frequency hopping discussion in the time slots is more sufficient, but basically no clear conclusion is made on the frequency hopping among the time slots. Therefore, the current inter-slot frequency hopping is not operative.

In addition, 5G has introduced low latency high reliability communications (Ultra-Reliable and Low Latency Communication, URLLC) that are characterized by Ultra high reliability (e.g., 99.999%) transmissions within extreme latency (e.g., 1 ms). To achieve this goal, an unlicensed (Grant free) concept is proposed. Grant free adopts a resource allocation mode of pre-allocation\semi-permanent state, and the terminal can transmit on the allocated resources according to service requirements. This technique avoids the process of resource request (SR) and buffer status reporting (Buffer status report, BSR), increasing the effective transmission time of the terminal.

However, in Grant free transmissions, the location where the user initiates the transmission is relatively flexible, including determining the location and any location start. Since the access user is uncontrollable from any position, the interference problem of the access user needs to be considered in the design of frequency hopping.

For example, as shown in fig. 1, when the user 1 and the user 2 employ the same demodulation reference signal (Demodulation Reference Signal, DMRS), DMRS collision of the user 1 and the user 2 always occurs. The DMRS collision not only affects data demodulation, but also causes no recognition of the user.

Disclosure of Invention

A method, a terminal device and a network device for configuring a reference signal are provided. The DMRS resource conflict can be reduced or avoided, and the transmission efficiency of the system is improved.

In a first aspect, a method for configuring a reference signal is provided, including:

the terminal equipment receives configuration information of a demodulation reference signal (DMRS);

and the terminal equipment determines the DMRS resource based on the configuration information.

In the embodiment of the application, the terminal equipment receives the configuration information of the DMRS sent by the network equipment, and determines the DMRS resource based on the configuration information, so that the randomness of interference can be improved as much as possible, the same user is avoided from always or frequently colliding, and further, when the DMRS of the terminal equipment collides with other terminals, the performance of user identification can be effectively improved, and the transmission efficiency of the system is improved.

In some possible implementations, the configuration information includes information indicating whether the DMRS is transmitting in a frequency hopping manner.

In some possible implementations, the DMRS resources include at least one of the following:

DMRS base sequence resources, DMRS port resources, DMRS cyclic shift resources, and DMRS time-frequency resources.

In some possible implementations, the configuration information includes at least one of the following information:

first parameter dmrs_start, second frequency hopping parameter DMRS _offset A third frequency hopping parameter c_dmrs, a number of resources n_dmrs of the DMRS, a number of resources N available to the terminal device, and a DMRS resource pattern, wherein the dmrs_start represents a starting resource position, the DMRS _offset For the terminal deviceAnd obtaining the next hop resource position, wherein the C_DMRS is used for obtaining the DMRS resource.

In some possible implementations, the determining, by the terminal device, DMRS resources based on the configuration information includes:

the terminal device determines the DMRS resource according to the following formula:

DMRS(n)＝DMRS_start+Random(n)；

wherein the DMRS (n) represents the DMRS resource, the Random (n) represents a Random function, and the n is a non-negative integer.

DMRS(n)＝Random(C_DMRS)；

wherein the DMRS (n) represents the DMRS resource, mod represents a modulo operation, and n is a non-negative integer.

the terminal equipment determines the DMRS resource according to the following formula:

DMRS(n)＝(DMRS_start+(nmodN)*DMRS _offset )modN_DMRS；

In a second aspect, there is provided a method of configuring a reference signal, comprising:

the network equipment generates configuration information of a demodulation reference signal (DMRS);

and the network equipment sends the configuration information to the terminal equipment so that the terminal equipment can determine the DMRS resources according to the configuration information.

first parameter dmrs_start, second frequency hopping parameter DMRS _offset A third frequency hopping parameter c_dmrs, a number of resources n_dmrs of the DMRS, a number of resources N available to the terminal device, and a DMRS resource pattern, wherein the dmrs_start represents a starting resource position, the DMRS _offset And the C_DMRS is used for obtaining the resource of the DMRS.

In some possible implementations, the method further includes:

and the network equipment determines the DMRS resources according to the configuration information.

In some possible implementations, the network device determining the DMRS resource according to the configuration information includes:

the network device determines the DMRS resources according to the following formula:

DMRS(n)＝DMRS_start+Random(n)；

DMRS(n)＝Random(C_DMRS)；

DMRS(n)＝(DMRS_start+(nmodN)*DMRS _offset )modN_DMRS；

In a third aspect, there is provided a terminal device comprising:

a transceiver unit, configured to receive configuration information of a demodulation reference signal DMRS;

and the processing unit is used for determining the DMRS resource based on the configuration information.

In a fourth aspect, there is provided a terminal device, including:

a transceiver for receiving configuration information of a demodulation reference signal DMRS;

and the processor is used for determining the DMRS resource based on the configuration information.

In a fifth aspect, there is provided a network device comprising:

a processing unit, configured to generate configuration information of a demodulation reference signal DMRS;

and the receiving and transmitting unit is used for transmitting the configuration information to the terminal equipment so that the terminal equipment can determine the DMRS resources according to the configuration information.

In a sixth aspect, there is provided a network device comprising:

a processor, configured to generate configuration information of a demodulation reference signal DMRS;

and the transceiver is used for sending the configuration information to the terminal equipment so that the terminal equipment can determine the DMRS resources according to the configuration information.

In a seventh aspect, a computer readable medium is provided for storing a computer program comprising instructions for performing embodiments of the method of the first or second aspects described above.

In an eighth aspect, there is provided a computer chip comprising: the system comprises an input interface, an output interface, at least one processor and a memory, wherein the processor is used for executing codes in the memory, and when the codes are executed, the processor can realize each process executed by the terminal device in the method for configuring reference signals in the first aspect and various implementation manners.

In a ninth aspect, there is provided a computer chip comprising: the system comprises an input interface, an output interface, at least one processor and a memory, wherein the processor is used for executing codes in the memory, and when the codes are executed, the processor can realize each process executed by the network device in the method for configuring reference signals in the second aspect and various implementations.

In a tenth aspect, a communication system is provided, comprising a network device as described above, and a terminal device as described above.

Drawings

Fig. 1 is a schematic diagram of a DMRS resource of the related art.

Fig. 2 is an example of an application scenario of an embodiment of the present invention.

Fig. 3 is a schematic flow chart of a method of configuring a reference signal according to an embodiment of the present invention.

Fig. 4 is a schematic diagram of DMRS resources according to an embodiment of the present invention.

Fig. 5 is a schematic block diagram of a terminal device according to an embodiment of the present invention.

Fig. 6 is a schematic block diagram of another terminal device of an embodiment of the present invention.

Fig. 7 is a schematic block diagram of a network device of an embodiment of the present invention.

Fig. 8 is a schematic block diagram of another network device of an embodiment of the present invention.

Detailed Description

Fig. 2 is a schematic diagram of a 5G application scenario according to an embodiment of the present invention.

As shown in fig. 2, communication system 100 may include a terminal device 110 and a network device 120. Network device 120 may communicate with terminal device 110 over the air interface. Multi-service transmission is supported between terminal device 110 and network device 120.

It should be understood that embodiments of the present invention are illustrated with respect to 5G communication system 100 only, but embodiments of the present invention are not limited thereto. That is, the technical solution of the embodiment of the present invention can be applied to various scenarios including a 5G communication system. For example, a mixed deployment scenario consisting of a 5G communication system and a first communication system, and so on. Wherein the first communication system may be any kind of communication system. For example: long term evolution (Long Term Evolution, LTE) system, LTE time division duplex (Time Division Duplex, TDD), universal mobile telecommunications system (Universal Mobile Telecommunication System, UMTS), etc.

Furthermore, the present disclosure describes various embodiments in connection with a network device and a terminal device.

The network device 120 may refer to any entity on the network side for transmitting or receiving signals. For example, a base station device in a 5G network, etc.

Terminal device 110 may be any terminal device. In particular, the terminal device 110 may communicate with one or more Core networks (Core networks) via a radio access Network (Radio Access Network, RAN), which may also be referred to as an access terminal, user Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or User Equipment. For example, it may be a cellular telephone, cordless telephone, session initiation protocol (Session Initiation Protocol, SIP) phone, wireless local loop (Wireless Local Loop, WLL) station, personal digital assistant (Personal Digital Assistant, PDA), handheld device with wireless communication capability, computing device or other processing device connected to a wireless modem, vehicle mounted device, wearable device, etc.

Specifically, as shown in fig. 3, the method includes:

210, the terminal device receives configuration information of the demodulation reference signal DMRS.

220, the terminal device determines DMRS resources based on the configuration information.

Specifically, the terminal device determines DMRS resources based on configuration information of the DMRS, and generates and transmits the DMRS based on the DMRS resources. In the embodiment of the application, the terminal equipment receives the configuration information of the DMRS sent by the network equipment, and determines the DMRS resource based on the configuration information, so that the randomness of interference can be improved as much as possible, the same user is avoided from always or frequently colliding, and further, when the DMRS of the terminal equipment collides with other terminals, the performance of user identification can be effectively improved, and the transmission efficiency of the system is improved.

Further, the configuration information is dedicated information of the terminal device.

For example, when the number of terminal devices requiring DMRS resources is greater than the DMRS resources available to the terminal device, the network device generates dedicated configuration information for the terminal device. Thereby reducing or avoiding the DMRS resource conflict and improving the transmission efficiency of the system.

It is to be understood that the DMRS resources include, but are not limited to, at least one of the following:

Further, in the embodiment of the present application, the configuration information may include information for indicating whether the DMRS transmits in a frequency hopping manner. That is, the terminal device determines the transmission mode of the DMRS according to the information indicating whether the DMRS is transmitted in a frequency hopping mode.

In the embodiment of the present application, a specific implementation manner of determining the DMRS resource by the terminal device is described in an exemplary manner as follows:

in one embodiment, the configuration information may include a DMRS resource pattern. Specifically, the configuration information may include a set of DMRS resources including a plurality of DMRS resources. For example, the network device configures a set of DMRS resources for user 1 and user 2, respectively.

For example, as shown in fig. 4, assume that user 1 is configured with a set of DMRS resources {1,2,3,4,2}, and user 2 is configured with a set of DMRS resources {2,4,1,3,1}.

Further, in the embodiment of the present application, each DMRS resource in the set of DMRS resources may be a time index or a transmission frequency index, where the time index may be understood as an index of a time unit, and the transmission frequency index may be understood as an index of a data transmission frequency. Wherein the time unit may be understood as a period of time. However, the time length of the period of time is not particularly limited in the embodiment of the present application.

For example, in one embodiment, the units of time units include at least one of: at least one symbol, at least one slot, and at least one transmission opportunity. Specifically, for example, the unit of the time unit may be one symbol, or a period composed of a plurality of symbols, or 1 Slot (Slot), or a period composed of a plurality of slots.

Further, the unit of the time unit is determined by the higher layer signaling or physical layer signaling sent by the terminal device through the network device.

For example, the unit of the time unit may be directly indicated by the network device, or may be indirectly indicated by the network device, or may be specified by a protocol, which is not specifically limited in this application.

Further, the time units referred to in the embodiments of the present application may refer to relative time units or absolute time units, which are not specifically limited in the embodiments of the present application.

In another embodiment, the terminal device may acquire the DMRS resource based on a parameter in the configuration information.

For example, the configuration information may include at least one of the following:

first parameter dmrs_start, second frequency hopping parameter DMRS _offset A third frequency hopping parameter C_DMRS, a resource number N_DMRS of the DMRS and an available resource number N of the terminal equipment, wherein the DMRS_start represents a starting resource position, and the DMRS _offset And the C_DMRS is used for obtaining the resource of the DMRS.

The following describes an exemplary implementation manner of determining the DMRS resource by the terminal device according to the parameters in the configuration information in the embodiment of the present application:

in one embodiment, the terminal device determines DMRS resources based on the configuration information, including:

DMRS(n)＝DMRS_start+Random(n) (1)

wherein the DMRS (n) represents the DMRS resource, the Random (n) represents a Random function, and n is a non-negative integer, for example, the n may be a time index or a transmission number index.

It should be appreciated that when the DMRS resource is determined using equation (1) above, the configuration information may include the first parameter dmrs_start.

In another embodiment, the terminal device determines the DMRS resource according to the following formula:

DMRS(n)＝Random(C_DMRS) (2)

It should be appreciated that the configuration information may include the third frequency hopping parameter C DMRS when determining the DMRS resource using the above equation (2).

wherein the DMRS (n) represents the DMRS resource, the mod represents a modulo operation, and n is a non-negative integer, for example, the n may be a time index or a transmission number index.

It should be appreciated that in determining the DMRS resource using equation (3) above, the configuration information may include a first parameter dmrs_start, a second frequency hopping parameter DMRS _offset And at least one of the number of resources n_dmrs of the DMRS.

DMRS(n)＝(DMRS_start+(nmodN)*DMRS _offset )modN_DMRS (4)

It should be appreciated that in determining the DMRS resource using equation (4) above, the configuration information may include a first parameter dmrs_start, a second frequency hopping parameter DMRS _offset At least one of the number of resources n_dmrs of the DMRS and the number of available resources N of the terminal device.

It should be understood that the above formula (1), formula (2), formula (3) and formula (4) are merely exemplary descriptions of determining the DMRS resource by the terminal device based on the parameter in the configuration information in the embodiment of the present application, and the manner in which the terminal device determines the DMRS resource based on the configuration information in the embodiment of the present application is not limited to the above formula.

Specifically, as shown in fig. 5, the terminal apparatus 400 includes:

a transceiver 310, configured to receive configuration information of a demodulation reference signal DMRS;

and a processing unit 320, configured to determine DMRS resources based on the configuration information.

In one embodiment, the configuration information includes information indicating whether the DMRS is transmitting in a frequency hopping manner.

In one embodiment, the DMRS resources include at least one of the following resources:

In one embodiment, the configuration information includes at least one of the following information:

first parameter dmrs_start, second frequency hopping parameter DMRS _offset A third frequency hopping parameter C_DMRS, a resource number N_DMRS of the DMRS, an available resource number N of the terminal equipment and a DMRS resource pattern, wherein the DMRS_start represents a starting resource position, and the DMRS _offset And the C_DMRS is used for obtaining the resource of the DMRS.

In one embodiment, the processing unit 320 is specifically configured to:

the DMRS resource is determined according to the following formula:

DMRS(n)＝DMRS_start+Random(n)；

In one embodiment, the processing unit 320 is specifically configured to:

the DMRS resource is determined according to the following formula:

DMRS(n)＝Random(C_DMRS)；

In one embodiment, the processing unit 320 is specifically configured to:

the DMRS resource is determined according to the following formula:

In one embodiment, the processing unit 320 is specifically configured to:

the DMRS resource is determined according to the following formula:

DMRS(n)＝(DMRS_start+(nmodN)*DMRS _offset )modN_DMRS；

In an embodiment of the present invention, the transceiver unit 310 may be implemented by a transceiver, and the processing unit 320 may be implemented by a processor. As shown in fig. 6, the terminal device 400 may include a processor 410, a transceiver 420, and a memory 430. The memory 430 may be used for storing instruction information, and may also be used for storing code, instructions, etc. executed by the processor 410. The individual components in the terminal device 400 are connected by a bus system, which in addition to a data bus comprises a power bus, a control bus and a status signal bus.

The terminal device 400 shown in fig. 6 can implement each process implemented by the terminal device in the foregoing embodiment of the method of fig. 3, and in order to avoid repetition, a description is omitted here. That is, method embodiments in embodiments of the present invention may be implemented by a processor and a transceiver.

Fig. 7 is a schematic block diagram of a network device of an embodiment of the present application.

Specifically, as shown in fig. 7, the network device includes:

a processing unit 510, configured to generate configuration information of a demodulation reference signal DMRS;

and a transceiver 520, configured to send the configuration information to the terminal device, so that the terminal device determines DMRS resources according to the configuration information.

In one embodiment, the network device further comprises:

and determining the DMRS resource according to the configuration information.

In one embodiment, the processing unit 510 is specifically configured to:

the DMRS resource is determined according to the following formula:

DMRS(n)＝DMRS_start+Random(n)；

In one embodiment, the processing unit 510 is specifically configured to:

the DMRS resource is determined according to the following formula:

DMRS(n)＝Random(C_DMRS)；

In one embodiment, the processing unit 510 is specifically configured to:

the DMRS resource is determined according to the following formula:

In one embodiment, the processing unit 510 is specifically configured to:

the DMRS resource is determined according to the following formula:

DMRS(n)＝(DMRS_start+(nmodN)*DMRS _offset )modN_DMRS；

In an embodiment of the present invention, the processing unit 510 may be implemented by a processor, and the transceiver unit 520 may be implemented by a transceiver. Network device 600 may include a processor 610, a transceiver 620, and a memory 630. The network device 600 shown in fig. 8 can implement the respective processes implemented by the network device in the foregoing embodiment of the method shown in fig. 3, and will not be repeated herein.

That is, method embodiments in embodiments of the present invention may be implemented by a processor and a transceiver.

In implementation, steps of method embodiments in embodiments of the present invention may be performed by integrated logic circuits in hardware in a processor or by instructions in software. More specifically, the steps of the method disclosed in connection with the embodiments of the present invention may be embodied directly in hardware, in a decoded processor, or in a combination of hardware and software modules in a decoded processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in a memory, and the processor reads the information in the memory and, in combination with its hardware, performs the steps of the above method.

It should be understood that the processor mentioned in the embodiments of the present invention may be an integrated circuit chip, which has a signal processing capability, and may implement or execute the methods, steps and logic blocks disclosed in the embodiments of the present invention. For example, the processor may be a general purpose processor, a digital signal processor (digital signal processor, DSP), an application specific integrated circuit (application specific integrated circuit, ASIC), an off-the-shelf programmable gate array (field programmable gate array, FPGA) or other programmable logic device, a transistor logic device, discrete hardware components, or the like. Further, a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

Furthermore, the memory referred to in embodiments of the present invention may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. The volatile memory may be random access memory (random access memory, RAM) which acts as an external cache. It should be understood that the above memory is illustrative but not restrictive, and for example, the memory in the embodiments of the present invention may be Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), direct RAM (DR RAM), and the like. That is, the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

Finally, it is noted that the terminology used in the embodiments of the invention and in the appended claims is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the invention.

For example, as used in the embodiments of the invention and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

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 embodiments of the present invention.

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.

In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

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

In addition, each functional unit in the embodiment of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

If implemented as a software functional unit and sold or used as a stand-alone product, may be stored on a computer readable storage medium. Based on such understanding, the technical solution of the embodiments of the present invention may be embodied in essence or a part contributing to the prior art or a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method of the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a mobile hard disk, a read-only memory, a random access memory, a magnetic disk or an optical disk.

The foregoing is merely a specific implementation of the embodiment of the present invention, but the protection scope of the embodiment of the present invention is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the embodiment of the present invention, and the changes or substitutions are covered by the protection scope of the embodiment of the present invention. Therefore, the protection scope of the embodiments of the present invention shall be subject to the protection scope of the claims.

Claims

1. A method of configuring a reference signal, comprising:

the terminal equipment determines a DMRS resource based on the configuration information;

wherein the configuration information includes at least one of the following information: first parameter dmrs_start, second frequency hopping parameter DMRS _offset A third frequency hopping parameter c_dmrs, a number of resources n_dmrs of the DMRS, a number of resources N available to the terminal device, and a DMRS resource pattern, wherein the dmrs_start represents a starting resource position, the DMRS _offset For a stationThe terminal equipment obtains the position of the next hop resource, and the C_DMRS is used for obtaining the DMRS resource;

the terminal device determines DMRS resources based on the configuration information, including:

the terminal device determines the DMRS resource according to one of the following formulas:

DMRS(n)＝Random(C_DMRS)；

DMRS(n)＝(DMRS_start+(nmodN)*DMRS _offset )modN_DMRS；

wherein the DMRS (n) represents the DMRS resource, n represents a time index or a transmission number index and is a non-negative integer, random () represents a Random function, and mod represents a modulo operation.

2. The method of claim 1, wherein the configuration information includes information indicating whether the DMRS is transmitting in a frequency hopping manner.

3. The method of claim 1 or 2, wherein the DMRS resources comprise at least one of:

4. A method of configuring a reference signal, comprising:

the network equipment sends the configuration information to the terminal equipment so that the terminal equipment can determine the DMRS resources according to the configuration information;

wherein the configuration information includes at least one of the following information: first parameter dmrs_start, second frequency hopping parameter DMRS _offset Third frequency hopping parameter C_DMRS, said DMRSA resource number n_dmrs, an available resource number N of the terminal device, and a DMRS resource pattern, wherein the dmrs_start represents a starting resource position, and the DMRS _offset The method comprises the steps that the terminal equipment obtains the position of a next hop resource, and the C_DMRS is used for obtaining the DMRS resource;

the method further comprises the steps of: the network equipment determines the DMRS resources according to the configuration information;

the network device determines the DMRS resource according to the configuration information, including:

the network device determines the DMRS resources according to one of the following formulas:

DMRS(n)＝Random(C_DMRS)；

DMRS(n)＝(DMRS_start+(nmodN)*DMRS _offset )modN_DMRS；

5. The method of claim 4, wherein the configuration information includes information indicating whether the DMRS is transmitting in a frequency hopping manner.

6. The method of claim 4 or 5, wherein the DMRS resources comprise at least one of:

7. A terminal device, comprising:

a processing unit, configured to determine DMRS resources based on the configuration information;

wherein the configuration information includes at least one of the following information: first parameter dmrs_start, second frequency hopping parameter DMRS _offset A third frequency hopping parameter c_dmrs, a number of resources n_dmrs of the DMRS, a number of resources N available to the terminal device, and a DMRS resource pattern, wherein the dmrs_start represents a starting resource position, the DMRS _offset The method comprises the steps that the terminal equipment obtains the position of a next hop resource, and the C_DMRS is used for obtaining the DMRS resource;

the processing unit is specifically configured to:

the DMRS resources are determined according to one of the following formulas:

DMRS(n)＝Random(C_DMRS)；

DMRS(n)＝(DMRS_start+(nmodN)*DMRS _offset )modN_DMRS；

8. The terminal device of claim 7, wherein the configuration information includes information indicating whether the DMRS is transmitting in a frequency hopping manner.

9. The terminal device of claim 7 or 8, wherein the DMRS resources comprise at least one of:

10. A network device, comprising:

a transceiver unit, configured to send the configuration information to a terminal device, so that the terminal device determines DMRS resources according to the configuration information;

the processing unit is further configured to determine the DMRS resource according to the configuration information;

the processing unit is specifically configured to:

the DMRS resources are determined according to one of the following formulas:

DMRS(n)＝Random(C_DMRS)；

/>

DMRS(n)＝(DMRS_start+(nmodN)*DMRS _offset )modN_DMRS；

11. The network device of claim 10, wherein the configuration information includes information indicating whether the DMRS is transmitting in a frequency hopping manner.

12. The network device of claim 10 or 11, wherein the DMRS resources comprise at least one of:

13. A terminal device, comprising: a processor, a memory and a computer program stored on the memory and executable on the processor, the processor implementing the method of any one of claims 1 to 3 when the computer program is executed.

14. A network device, comprising: a processor, a memory and a computer program stored on the memory and executable on the processor, the processor implementing the method according to any one of claims 4 to 6 when the computer program is executed.

15. A computer readable medium storing a computer program executable by a processor to implement the method of any one of claims 1 to 3.

16. A computer readable medium storing a computer program executable by a processor to implement the method of any one of claims 4 to 6.