CN111345082A - Method for configuring reference signal, terminal equipment and network equipment - Google Patents

Method for configuring reference signal, terminal equipment and network equipment Download PDF

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CN111345082A
CN111345082A CN201880073027.XA CN201880073027A CN111345082A CN 111345082 A CN111345082 A CN 111345082A CN 201880073027 A CN201880073027 A CN 201880073027A CN 111345082 A CN111345082 A CN 111345082A
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dmrs
resources
resource
configuration information
random
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CN111345082B (en
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林亚男
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management

Abstract

A method for configuring reference signals, a terminal device and a network device 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 prevented 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 a 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, in particular to a method for configuring a reference signal, a terminal device and a network device.
Background
Currently, a New Radio (NR) system of the fifth Generation mobile communication technology (5-Generation, 5G) introduces inter-slot and intra-slot frequency hopping. Moreover, the intra-slot frequency hopping discussion is relatively sufficient, but the inter-slot basically has no clear conclusion. Therefore, the current intra-slot frequency hopping is not working.
In addition, 5G also introduces Low-Latency high-reliability Communication (URLLC), which is characterized by Ultra-high-reliability (e.g., 99.999%) transmission within an extreme Latency (e.g., 1 ms). To achieve this goal, the concept of Grant free (Grant free) is proposed. The Grant free adopts a resource configuration mode of pre-configuration \ semi-permanent state, and the terminal can transmit on the configured resources according to the service requirement. The technology avoids the processes of resource request (SR) and Buffer Status Report (BSR), and increases the effective transmission time of the terminal.
However, in Grant free transmission, the location where the user initiates the transmission is flexible, including determining the location and the start of an arbitrary location. Since the access user is not controllable since the access user starts at any position, the problem of access user interference also needs to be considered in the design of frequency hopping.
For example, as shown in fig. 1, when user 1 and user 2 use the same Demodulation Reference Signal (DMRS), DMRS collision between user 1 and user 2 always occurs. DMRS collisions not only affect data demodulation, but also result in the inability to identify users.
Disclosure of Invention
A method for configuring reference signals, a terminal device and a network device are provided. DMRS resource conflict can be reduced or avoided, and system transmission efficiency 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 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 prevented 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 a system is improved.
In some possible implementations, the configuration information includes information indicating whether the DMRS is transmitted in a frequency hopping manner.
In some possible implementations, the DMRS resources include at least one of the following resources:
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:
first parameter DMRS _ start and second frequency hopping parameter DMRSoffsetA third frequency hopping parameter C _ DMRS, the number of resources N _ DMRS of the DMRS, the number of available resources N of the terminal device and a DMRS resource pattern, wherein the DMRS _ start represents a starting resource position, and the DMRSoffsetThe method is used for the terminal equipment to obtain the next hop resource position, and 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.
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)＝Random(C_DMRS)；
wherein the DMRS (n) represents the DMRS resource, the random (n) represents a random function, and the n is a non-negative integer.
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:
Figure PCTCN2018072161-APPB-000001
wherein the DMRS (n) represents the DMRS resource, the mod represents a modulo operation, and the n is a non-negative integer.
In some possible implementations, the determining, by the terminal device, DMRS resources based on the configuration information includes:
the terminal equipment determines the DMRS resources according to the following formula:
DMRS(n)＝(DMRS_start+(nmodN)*DMRSoffset)modN_DMRS；
wherein the DMRS (n) represents the DMRS resource, the mod represents a modulo operation, and the n is a non-negative integer.
In a second aspect, a method for configuring a reference signal is provided, including:
the method comprises the steps that 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 resource according to the configuration information.
In some possible implementations, the configuration information includes information indicating whether the DMRS is transmitted in a frequency hopping manner.
In some possible implementations, the DMRS resources include at least one of the following resources:
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:
first parameter DMRS _ start and second frequency hopping parameter DMRSoffsetA third frequency hopping parameter C _ DMRS, the number of resources N _ DMRS of the DMRS, the number of available resources N of the terminal device and a DMRS resource pattern, wherein the DMRS _ start represents a starting resource position, and the DMRSoffsetThe method is used for the terminal equipment to obtain the next hop resource position, and the C _ DMRS is used for obtaining the DMRS resource.
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 determining, by the network device, the DMRS resource according to the configuration information includes:
the network device determines the DMRS resources according to the 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.
In some possible implementations, the determining, by the network device, the DMRS resource according to the configuration information includes:
the network device determines the DMRS resources according to the formula:
DMRS(n)＝Random(C_DMRS)；
wherein the DMRS (n) represents the DMRS resource, the random (n) represents a random function, and the n is a non-negative integer.
In some possible implementations, the determining, by the network device, the DMRS resource according to the configuration information includes:
the network device determines the DMRS resources according to the following formula:
Figure PCTCN2018072161-APPB-000002
wherein the DMRS (n) represents the DMRS resource, the mod represents a modulo operation, and the n is a non-negative integer.
In some possible implementations, the determining, by the network device, 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+(nmodN)*DMRSoffset)modN_DMRS；
wherein the DMRS (n) represents the DMRS resource, the mod represents a modulo operation, and the n is a non-negative integer.
In a third aspect, a terminal device is provided, which includes:
a transceiving unit, configured to receive configuration information of a demodulation reference signal DMRS;
a processing unit, configured to determine DMRS resources based on the configuration information.
In a fourth aspect, a terminal device is provided, which includes:
a transceiver for receiving configuration information of a demodulation reference signal (DMRS);
a processor configured to determine DMRS resources based on the configuration information.
In a fifth aspect, a network device is provided, which includes:
the demodulation reference signal demodulation method comprises a processing unit, a demodulation reference signal (DMRS) configuration information generation unit and a demodulation reference signal (DMRS) configuration information generation unit, wherein the DMRS configuration information;
and the transceiving unit is used for sending the configuration information to the terminal equipment so that the terminal equipment can determine the DMRS resource according to the configuration information.
In a sixth aspect, a network device is provided, comprising:
a processor for generating 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 the method embodiments of the first or second aspect described above.
In an eighth aspect, there is provided a computer chip comprising: an input interface, an output interface, at least one processor, and a memory, where the processor is configured to execute codes in the memory, and when the codes are executed, the processor may implement each process performed by a terminal device in the method for configuring a reference signal in the first aspect and various implementations described above.
In a ninth aspect, there is provided a computer chip comprising: an input interface, an output interface, at least one processor, and a memory, wherein the processor is configured to execute codes in the memory, and when the codes are executed, the processor may implement the processes performed by the network device in the method for configuring a reference signal in the foregoing second aspect and various implementations.
A tenth aspect provides a communication system, including the aforementioned network device, and the aforementioned terminal device.
Drawings
Fig. 1 is a schematic diagram of a DMRS resource of the prior art.
Fig. 2 is an example of an application scenario 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 diagram of DMRS resources according to an embodiment of the present invention.
Fig. 5 is a schematic block diagram of a terminal device of 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. Multi-service transport is supported between terminal device 110 and network device 120.
It should be understood that the embodiment of the present invention is only exemplified by the 5G communication system 100, but the embodiment of the present invention is not limited thereto. That is to say, 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 composed of the 5G communication system and the first communication system, and the like. The first communication system may be any one of communication systems. For example: a Long Term Evolution (LTE) System, a Time Division Duplex (TDD) System, a Universal Mobile Telecommunications System (UMTS) System, and the like.
Furthermore, various embodiments are described herein in connection with a network device and a terminal device.
Network device 120 may refer to any entity on the network side that transmits or receives signals. E.g., base station equipment in a 5G network, etc.
Terminal device 110 may be any terminal device. Specifically, the terminal device 110 may communicate with one or more Core networks (Core networks) through a Radio Access Network (RAN), and may also be referred to as an Access terminal, a User Equipment (UE), a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a User terminal, a wireless communication device, a User agent, or a User Equipment. For example, it may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device having Wireless communication function, a computing device or other processing device connected to a Wireless modem, a vehicle-mounted device, a wearable device, or the like.
Fig. 3 is a schematic flow chart of a method of configuring a reference signal according to an embodiment of the present invention.
Specifically, as shown in fig. 3, the method includes:
and 210, the terminal equipment receives configuration information of a 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 prevented 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 a system is improved.
Further, the configuration information is specific 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 devices, the network device generates dedicated configuration information for the terminal devices. And then DMRS resource conflict is reduced or avoided, and system transmission efficiency is improved.
It is to be understood that the DMRS resources include, but are not limited to, at least one of the following resources:
DMRS base sequence resources, DMRS port resources, DMRS cyclic shift resources and DMRS time frequency resources.
Further, in this embodiment, the configuration information may include information indicating whether the DMRS is transmitted in a frequency hopping manner. That is, the terminal device determines the transmission scheme of the DMRS according to the information indicating whether the DMRS is transmitted in a frequency hopping scheme.
In the following, a specific implementation manner for the terminal device to determine the DMRS resource is exemplarily described:
in one embodiment, the configuration information may include a DMRS resource pattern. In particular, 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, suppose 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 this embodiment of the application, each DMRS resource in the set of DMRS resources may be a time index or a transmission number index, where the time index may be understood as an index of a time unit, and the transmission number index may be understood as an index of a data transmission number. Wherein the time unit is understood to be a period of time. However, the time length of this period is not particularly limited in the embodiment of the present application.
For example, in one embodiment, the unit of time units includes at least one of: at least one symbol, at least one slot, and at least one transmission opportunity. Specifically, the unit of the time unit may be, for example, 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 higher layer signaling or physical layer signaling sent by the network device by the terminal device.
For example, the unit of the time unit may be directly indicated by the network device, may also be indirectly indicated by the network device, and may also be specified by a protocol, which is not specifically limited in this application.
Furthermore, the time unit referred to in the embodiment of the present application may refer to a relative time unit or an absolute time unit, and the embodiment of the present application is not particularly limited.
In another embodiment, the terminal device may acquire the DMRS resources based on parameters in the configuration information.
For example, the configuration information may include at least one of the following information:
first parameter DMRS _ start and second frequency hopping parameter DMRSoffsetA third frequency hopping parameter C _ DMRS, the number of resources of the DMRS N _ DMRS and the number of available resources of the terminal equipment N, wherein the DMRS _ start represents the position of the initial resource, and the DMRSoffsetFor the terminal equipment to obtain the next-hop resource position, the C _ DMRS is used for obtaining the DMRS resourceA source.
The following describes an implementation manner in which the terminal device determines the DMRS resource based on the parameters in the configuration information in this embodiment:
in one embodiment, the terminal device determines DMRS resources based on the configuration information, including:
the terminal device determines the DMRS resource according to the following formula:
DMRS(n)＝DMRS_start+Random(n) (1)
wherein, the DMRS (n) represents the DMRS resource, and 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 is to be understood that the configuration information may include the first parameter DMRS _ start when the DMRS resources are determined using formula (1) above.
In another embodiment, the terminal device determines the DMRS resources according to the following formula:
DMRS(n)＝Random(C_DMRS) (2)
wherein, the DMRS (n) represents the DMRS resource, and 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 understood that, when the DMRS resources are determined using formula (2) above, the configuration information may include the third frequency hopping parameter, C _ DMRS.
In another embodiment, the terminal device determines the DMRS resources according to the following formula:
Figure PCTCN2018072161-APPB-000003
where DMRS (n) denotes the DMRS resource, mod denotes a modulo operation, and n is a non-negative integer, e.g., n may be a time index or a transmission number index.
It should be understood that, when the DMRS resources are determined using the above formula (3), the configuration information may include a first parameter DMRS _ start, a second frequency hopping parameterDMRSoffsetAnd at least one of the number of resources N _ DMRS of the DMRS.
In another embodiment, the terminal device determines the DMRS resources according to the following formula:
DMRS(n)＝(DMRS_start+(nmodN)*DMRSoffset)modN_DMRS (4)
where DMRS (n) denotes the DMRS resource, mod denotes a modulo operation, and n is a non-negative integer, e.g., n may be a time index or a transmission number index.
It should be understood that, when the DMRS resources are determined using the above formula (4), the configuration information may include a first parameter DMRS _ start and a second frequency hopping parameter DMRS _ startoffsetAt least one of the number of resources N _ DMRS for the DMRS and the number of resources N available to the terminal device.
It should be understood that formula (1), formula (2), formula (3), and formula (4) above are merely exemplary descriptions of the terminal device determining the DMRS resources based on the parameters in the configuration information in the embodiment of the present application, and the manner in which the terminal device determines the DMRS resources based on the configuration information in the embodiment of the present application is not limited to the above formula.
Fig. 5 is a schematic block diagram of a terminal device of an embodiment of the present invention.
Specifically, as shown in fig. 5, the terminal apparatus 400 includes:
a transceiving unit 310, configured to receive configuration information of a demodulation reference signal DMRS;
a processing unit 320, configured to determine DMRS resources based on the configuration information.
Optionally, the configuration information includes information indicating whether the DMRS is transmitted in a frequency hopping manner.
Optionally, the DMRS resources comprise at least one of the following resources:
DMRS base sequence resources, DMRS port resources, DMRS cyclic shift resources and DMRS time frequency resources.
Optionally, the configuration information includes at least one of the following information:
first parameter DMRS _ start and second frequency hopping parameter DMRSoffsetA third frequency hopping parameter C _ DMRS, the number of resources N _ DMRS of the DMRS, the number of available resources N of the terminal equipment and a DMRS resource pattern, wherein the DMRS _ start represents a starting resource position, and the DMRSoffsetAnd the terminal equipment is used for obtaining the next hop resource position, and the C _ DMRS is used for obtaining the DMRS resource.
Optionally, the processing unit 320 is specifically configured to:
the DMRS resources are determined 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.
Optionally, the processing unit 320 is specifically configured to:
the DMRS resources are determined according to the following formula:
DMRS(n)＝Random(C_DMRS)；
wherein, the DMRS (n) represents the DMRS resource, the random (n) represents a random function, and the n is a non-negative integer.
Optionally, the processing unit 320 is specifically configured to:
the DMRS resources are determined according to the following formula:
Figure PCTCN2018072161-APPB-000004
wherein, DMRS (n) represents the DMRS resource, mod represents a modulo operation, and n is a non-negative integer.
Optionally, the processing unit 320 is specifically configured to:
the DMRS resources are determined according to the following formula:
DMRS(n)＝(DMRS_start+(nmodN)*DMRSoffset)modN_DMRS；
wherein, DMRS (n) represents the DMRS resource, mod represents a modulo operation, and n is a non-negative integer.
In the 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. Memory 430 may be used to store, among other things, indication information, and may also be used to store code, instructions, etc. that are executed by processor 410. The individual components in the terminal device 400 are connected via a bus system, wherein the bus system comprises, in addition to a data bus, a power bus, a control bus and a status signal bus.
The terminal device 400 shown in fig. 6 can implement the processes implemented by the terminal device in the foregoing method embodiment of fig. 3, and details are not repeated here to avoid repetition. That is, the method embodiments in the 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;
a transceiving unit 520, configured to send the configuration information to the terminal device, so that the terminal device determines the DMRS resource according to the configuration information.
Optionally, the configuration information includes information indicating whether the DMRS is transmitted in a frequency hopping manner.
Optionally, the DMRS resources comprise at least one of the following resources:
DMRS base sequence resources, DMRS port resources, DMRS cyclic shift resources and DMRS time frequency resources.
Optionally, the configuration information includes at least one of the following information:
first parameter DMRS _ start and second frequency hopping parameter DMRSoffsetA 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 DMRSoffsetAnd the terminal equipment is used for obtaining the next hop resource position, and the C _ DMRS is used for obtaining the DMRS resource.
Optionally, the network device further includes:
and determining the DMRS resources according to the configuration information.
Optionally, the processing unit 510 is specifically configured to:
the DMRS resources are determined 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.
Optionally, the processing unit 510 is specifically configured to:
the DMRS resources are determined according to the following formula:
DMRS(n)＝Random(C_DMRS)；
wherein, the DMRS (n) represents the DMRS resource, the random (n) represents a random function, and the n is a non-negative integer.
Optionally, the processing unit 510 is specifically configured to:
determining the DMRS resource according to and according to the following formula:
Figure PCTCN2018072161-APPB-000005
wherein, DMRS (n) represents the DMRS resource, mod represents a modulo operation, and n is a non-negative integer.
Optionally, the processing unit 510 is specifically configured to:
the DMRS resources are determined according to the following formula:
DMRS(n)＝(DMRS_start+(nmodN)*DMRSoffset)modN_DMRS；
wherein, DMRS (n) represents the DMRS resource, mod represents a modulo operation, and n is a non-negative integer.
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 is capable of implementing the processes implemented by the network device in the method embodiment shown in fig. 3, and is not described here again to avoid repetition.
That is, the method embodiments in the embodiments of the present invention may be implemented by a processor and a transceiver.
In implementation, the steps of the method embodiments of the present invention may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. More specifically, the steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in ram, flash memory, rom, prom, or eprom, registers, among other storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.
It should be understood that the processor mentioned in the embodiments of the present invention may be an integrated circuit chip having 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 (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, a transistor logic device, a discrete hardware component, and so on. Further, a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
Further, the memory mentioned in the embodiments of the present invention may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories. The non-volatile 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. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. It should be understood that the above memories are exemplary but not limiting illustrations, for example, the memories in the embodiments of the present invention may also be Static Random Access Memory (SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (enhanced SDRAM, ESDRAM), Synchronous Link DRAM (SLDRAM), Direct Rambus 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 present invention and the appended claims is for the purpose of describing particular embodiments only and is not intended to be limiting of embodiments of the present invention.
For example, as used in the examples of the present 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 implementation. 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 embodiments.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions in actual implementation, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the elements may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
If implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method described in the embodiments of the present invention. And the aforementioned storage medium includes: u disk, removable hard disk, read only memory, random access memory, magnetic or optical disk, etc. for storing program codes.
The above description is only a specific implementation of the embodiments of the present invention, but the scope of the embodiments of the present invention is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the embodiments of the present invention, and all such changes or substitutions should be covered by the scope of the embodiments 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 (34)

  1. A method of configuring a reference signal, comprising:
    the terminal equipment receives configuration information of a demodulation reference signal DMRS;
    and the terminal equipment determines DMRS resources based on the configuration information.
  2. The method of claim 1, wherein the configuration information comprises information indicating whether the DMRS is transmitted in a frequency hopping manner.
  3. The method according to claim 1 or 2, wherein the DMRS resources comprise at least one of the following resources:
    DMRS base sequence resources, DMRS port resources, DMRS cyclic shift resources and DMRS time frequency resources.
  4. The method according to any of claims 1 to 3, wherein the configuration information comprises at least one of the following information:
    first parameter DMRS _ start and second frequency hopping parameter DMRSoffsetA third frequency hopping parameter C _ DMRS, the number of resources N _ DMRS of the DMRS, the number of available resources N of the terminal device and a DMRS resource pattern, wherein the DMRS _ start represents a starting resource position, and the DMRSoffsetThe method is used for the terminal equipment to obtain the next hop resource position, and the C _ DMRS is used for obtaining the DMRS resource.
  5. The method of claim 4, wherein the terminal device determines DMRS resources based on the configuration information, comprising:
    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.
  6. The method of claim 4, wherein the terminal device determines DMRS resources based on the configuration information, comprising:
    the terminal device determines the DMRS resource according to the following formula:
    DMRS(n)＝Random(C_DMRS)；
    wherein the DMRS (n) represents the DMRS resource, the random (n) represents a random function, and the n is a non-negative integer.
  7. The method of claim 4, wherein the terminal device determines DMRS resources based on the configuration information, comprising:
    the terminal device determines the DMRS resource according to the following formula:
    Figure PCTCN2018072161-APPB-100001
    wherein the DMRS (n) represents the DMRS resource, the mod represents a modulo operation, and the n is a non-negative integer.
  8. The method of claim 4, wherein the terminal device determines DMRS resources based on the configuration information, comprising:
    the terminal equipment determines the DMRS resources according to the following formula:
    DMRS(n)＝(DMRS_start+(n mod N)*DMRSoffset)mod N_DMRS；
    wherein the DMRS (n) represents the DMRS resource, the mod represents a modulo operation, and the n is a non-negative integer.
  9. A method of configuring a reference signal, comprising:
    the method comprises the steps that 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 resource according to the configuration information.
  10. The method of claim 9, wherein the configuration information comprises information indicating whether the DMRS is transmitted in a frequency hopping manner.
  11. The method according to claim 9 or 10, wherein the DMRS resources comprise at least one of the following resources:
    DMRS base sequence resources, DMRS port resources, DMRS cyclic shift resources and DMRS time frequency resources.
  12. The method according to any of claims 9 to 11, wherein the configuration information comprises at least one of the following information:
    first parameter DMRS _ start and second frequency hopping parameter DMRSoffsetA third frequency hopping parameter C _ DMRS, the number of resources N _ DMRS of the DMRS, the number of available resources N of the terminal device and a DMRS resource pattern, wherein the DMRS _ start represents a starting resource position, and the DMRSoffsetThe method is used for the terminal equipment to obtain the next hop resource position, and the C _ DMRS is used for obtaining the DMRS resource.
  13. The method according to any one of claims 9 to 12, further comprising:
    and the network equipment determines the DMRS resources according to the configuration information.
  14. The method of claim 13, wherein the network device determines the DMRS resources based on the configuration information, comprising:
    the network device determines the DMRS resources according to the 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.
  15. The method of claim 13, wherein the network device determines the DMRS resources based on the configuration information, comprising:
    the network device determines the DMRS resources according to the formula:
    DMRS(n)＝Random(C_DMRS)；
    wherein the DMRS (n) represents the DMRS resource, the random (n) represents a random function, and the n is a non-negative integer.
  16. The method of claim 13, wherein the network device determines the DMRS resources based on the configuration information, comprising:
    the network device determines the DMRS resources according to the following formula:
    Figure PCTCN2018072161-APPB-100002
    wherein the DMRS (n) represents the DMRS resource, the mod represents a modulo operation, and the n is a non-negative integer.
  17. The method of claim 13, wherein the network device determines the DMRS resources based on the configuration information, comprising:
    the network device determines the DMRS resources according to the following formula:
    DMRS(n)＝(DMRS_start+(n mod N)*DMRSoffset)mod N_DMRS；
    wherein the DMRS (n) represents the DMRS resource, the mod represents a modulo operation, and the n is a non-negative integer.
  18. A terminal device, comprising:
    a transceiving unit, configured to receive configuration information of a demodulation reference signal DMRS;
    a processing unit, configured to determine DMRS resources based on the configuration information.
  19. The terminal device of claim 18, wherein the configuration information comprises information indicating whether the DMRS is transmitted in a frequency hopping manner.
  20. The terminal device of claim 18 or 19, wherein the DMRS resources comprise at least one of the following resources:
    DMRS base sequence resources, DMRS port resources, DMRS cyclic shift resources and DMRS time frequency resources.
  21. The terminal device according to any of claims 18 to 20, wherein the configuration information comprises at least one of the following information:
    first parameter DMRS _ start and second frequency hopping parameter DMRSoffsetA third frequency hopping parameter C _ DMRS, the number of resources N _ DMRS of the DMRS, the number of available resources N of the terminal device and a DMRS resource pattern, wherein the DMRS _ start represents a starting resource position, and the DMRSoffsetThe method is used for the terminal equipment to obtain the next hop resource position, and the C _ DMRS is used for obtaining the DMRS resource.
  22. The terminal device of claim 21, wherein the processing unit is specifically configured to:
    determining 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.
  23. The terminal device of claim 21, wherein the processing unit is specifically configured to:
    determining the DMRS resource according to the following formula:
    DMRS(n)＝Random(C_DMRS)；
    wherein the DMRS (n) represents the DMRS resource, the random (n) represents a random function, and the n is a non-negative integer.
  24. The terminal device of claim 21, wherein the processing unit is specifically configured to:
    determining the DMRS resource according to the following formula:
    Figure PCTCN2018072161-APPB-100003
    wherein the DMRS (n) represents the DMRS resource, the mod represents a modulo operation, and the n is a non-negative integer.
  25. The terminal device of claim 21, wherein the processing unit is specifically configured to:
    determining the DMRS resource according to the following formula:
    DMRS(n)＝(DMRS_start+(n mod N)*DMRSoffset)mod N_DMRS；
    wherein the DMRS (n) represents the DMRS resource, the mod represents a modulo operation, and the n is a non-negative integer.
  26. A network device, comprising:
    the demodulation reference signal demodulation method comprises a processing unit, a demodulation reference signal (DMRS) configuration information generation unit and a demodulation reference signal (DMRS) configuration information generation unit, wherein the DMRS configuration information;
    and the transceiving unit is used for sending the configuration information to the terminal equipment so that the terminal equipment can determine the DMRS resource according to the configuration information.
  27. The network device of claim 26, wherein the configuration information comprises information indicating whether the DMRS is transmitted in a frequency-hopping manner.
  28. The network device of claim 26 or 27, wherein the DMRS resources comprise at least one of the following resources:
    DMRS base sequence resources, DMRS port resources, DMRS cyclic shift resources and DMRS time frequency resources.
  29. The network device of any of claims 26 to 28, wherein the configuration information comprises at least one of:
    first parameter DMRS _ start and second frequency hopping parameter DMRSoffsetA third frequency hopping parameter C _ DMRS, the number of resources N _ DMRS of the DMRS, the number of available resources N of the terminal device and a DMRS resource pattern, wherein the DMRS _ start represents a starting resource position, and the DMRSoffsetThe method is used for the terminal equipment to obtain the next hop resource position, and the C _ DMRS is used for obtaining the DMRS resource.
  30. The network device of any one of claims 26 to 29, wherein the network device further comprises:
    and determining the DMRS resources according to the configuration information.
  31. The network device of claim 30, wherein the processing unit is specifically configured to:
    determining 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.
  32. The network device of claim 30, wherein the processing unit is specifically configured to:
    determining the DMRS resource according to the following formula:
    DMRS(n)＝Random(C_DMRS)；
    wherein the DMRS (n) represents the DMRS resource, the random (n) represents a random function, and the n is a non-negative integer.
  33. The network device of claim 30, wherein the processing unit is specifically configured to:
    determining the DMRS resource according to and according to the following formula:
    Figure PCTCN2018072161-APPB-100004
    wherein the DMRS (n) represents the DMRS resource, the mod represents a modulo operation, and the n is a non-negative integer.
  34. The network device of claim 30, wherein the processing unit is specifically configured to:
    determining the DMRS resource according to the following formula:
    DMRS(n)＝(DMRS_start+(n mod N)*DMRSoffset)mod N_DMRS；
    wherein the DMRS (n) represents the DMRS resource, the mod represents a modulo operation, and the n is a non-negative integer.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102076076A (en) * 2009-11-20 2011-05-25 夏普株式会社 Resource allocation informing method of demodulation reference signal
CN105659517A (en) * 2013-09-17 2016-06-08 瑞典爱立信有限公司 Methods and apparatus for uplink resource assignment
CN106455094A (en) * 2015-08-13 2017-02-22 中国移动通信集团公司 Sounding reference signal transmission method, network side equipment and user equipment

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102076076A (en) * 2009-11-20 2011-05-25 夏普株式会社 Resource allocation informing method of demodulation reference signal
CN105659517A (en) * 2013-09-17 2016-06-08 瑞典爱立信有限公司 Methods and apparatus for uplink resource assignment
CN106455094A (en) * 2015-08-13 2017-02-22 中国移动通信集团公司 Sounding reference signal transmission method, network side equipment and user equipment

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