WO2023186158A1 - 解调参考信号传输方法、装置、终端及网络侧设备 - Google Patents

解调参考信号传输方法、装置、终端及网络侧设备 Download PDF

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Publication number
WO2023186158A1
WO2023186158A1 PCT/CN2023/085801 CN2023085801W WO2023186158A1 WO 2023186158 A1 WO2023186158 A1 WO 2023186158A1 CN 2023085801 W CN2023085801 W CN 2023085801W WO 2023186158 A1 WO2023186158 A1 WO 2023186158A1
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Prior art keywords
subsequence
length
reference signal
demodulation reference
target
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Ceased
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PCT/CN2023/085801
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English (en)
French (fr)
Inventor
郑凯立
刘昊
拉盖施塔玛拉卡
宋扬
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Priority claimed from CN202211103762.5A external-priority patent/CN116896432A/zh
Application filed by Vivo Mobile Communication Co Ltd filed Critical Vivo Mobile Communication Co Ltd
Priority to KR1020247036739A priority Critical patent/KR20240170949A/ko
Priority to EP23778522.5A priority patent/EP4507426A4/en
Priority to JP2024558471A priority patent/JP2025512932A/ja
Publication of WO2023186158A1 publication Critical patent/WO2023186158A1/zh
Priority to US18/903,157 priority patent/US20250023686A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/26035—Maintenance of orthogonality, e.g. for signals exchanged between cells or users, or by using covering codes or sequences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2697—Multicarrier modulation systems in combination with other modulation techniques
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0016—Time-frequency-code
    • H04L5/0021—Time-frequency-code in which codes are applied as a frequency-domain sequences, e.g. MC-CDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1273—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data

Definitions

  • the invention is required to be submitted to the Chinese Patent Office on April 2, 2022, with the application number 202210346947.2, the invention name is “Demodulation Reference Signal Transmission Method, Device, Terminal and Network Side Equipment” and the Chinese Patent is submitted on September 9, 2022 Office, application number is 202211103762.5, and the invention title is "Demodulation Reference Signal Transmission Method, Device, Terminal and Network Side Equipment”.
  • the entire content of this application is incorporated into the present invention by reference.
  • This application belongs to the field of mobile communication technology, and specifically relates to a demodulation reference signal transmission method, device, terminal and network side equipment.
  • the data channel demodulation reference signal is based on a frequency division orthogonal cover code (FD OCC) sequence of length 2 Make a design.
  • FD OCC frequency division orthogonal cover code
  • Embodiments of the present application provide a demodulation reference signal transmission method, device, terminal and network-side equipment, which can solve the problem that the number of existing DMRS ports cannot meet actual application requirements and limits the transmitted data traffic.
  • a demodulation reference signal transmission method applied to a first communication device, the method includes:
  • the first communication device performs channel estimation on the target demodulation reference signal
  • the target demodulation reference signal is generated based on N frequency division coverage code sequences.
  • the N frequency division coverage code sequences take a subsequence of target length as a basic unit, and use a subsequence corresponding to the target length as a basic unit. Resource mapping rules are generated, and the frequency division coverage code sequence is used for the target demodulation reference. Code division multiplexing of signal ports, where N is a positive integer.
  • a demodulation reference signal transmission device including:
  • a transceiver module configured to receive the target demodulation reference signal from the second communication device
  • a calculation module configured to perform channel estimation on the target demodulation reference signal
  • the target demodulation reference signal is generated based on N frequency division coverage code sequences.
  • the N frequency division coverage code sequences take a subsequence of target length as a basic unit, and use a subsequence corresponding to the target length as a basic unit. Resource mapping rules are generated, the frequency division coverage code sequence is used for code division multiplexing of ports of the target demodulation reference signal, and the N is a positive integer.
  • a demodulation reference signal transmission method applied to a second communication device, and the method includes:
  • the second communication device uses a subsequence of target length as a basic unit and generates N frequency division coverage code sequences using a resource mapping rule corresponding to the subsequence of target length.
  • the frequency division coverage code sequence is used for target demodulation. Code division multiplexing of ports for reference signal demodulation reference signals;
  • the second communication device generates and sends a target demodulation reference signal to the first communication device according to the N frequency division coverage code sequences;
  • the N is a positive integer.
  • a demodulation reference signal transmission device including:
  • a generation module configured to use a subsequence of target length as a basic unit and generate N frequency division coverage code sequences using resource mapping rules corresponding to the subsequence of target length, and the frequency division coverage code sequence is used for target solution Code division multiplexing of ports that modulate the reference signal and demodulate the reference signal;
  • a transmission module configured to generate and send a target demodulation reference signal to the first communication device according to the N frequency division coverage code sequences
  • the N is a positive integer.
  • a terminal in a fifth aspect, includes a processor and a memory.
  • the memory stores programs or instructions that can be run on the processor.
  • the program or instructions are executed by the processor, the following implementations are implemented: The steps of the method described in one aspect.
  • a terminal including a processor and a communication interface, wherein the processor is used to perform channel estimation on the target demodulation reference signal, and the communication interface is used to receive the target demodulation reference signal from a second communication device. Adjust the reference signal.
  • a network side device in a seventh aspect, includes a processor and a memory.
  • the memory stores programs or instructions that can be run on the processor.
  • the program or instructions are executed by the processor.
  • a network side device including a processor and a communication interface, wherein the processor is configured to use a subsequence of a target length as a basic unit, and map resources corresponding to the subsequence of the target length.
  • Rules generate N frequency division coverage code sequences, which are used for
  • the target demodulation reference signal is code division multiplexing of ports of the demodulation reference signal
  • the communication interface is configured to generate and send the target demodulation reference signal according to the N frequency division coverage code sequences to the first communication device.
  • a demodulation reference signal transmission system including: a terminal and a network side device.
  • the terminal can be used to perform the steps of the demodulation reference signal transmission method as described in the first aspect.
  • the network side device It can be used to perform the steps of the demodulation reference signal transmission method described in the third aspect.
  • a readable storage medium is provided. Programs or instructions are stored on the readable storage medium. When the programs or instructions are executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method are implemented as described in the first aspect. The steps of the method described in the third aspect.
  • a chip in an eleventh aspect, includes a processor and a communication interface.
  • the communication interface is coupled to the processor.
  • the processor is used to run programs or instructions to implement the method described in the first aspect. method, or implement a method as described in the third aspect.
  • a computer program/program product is provided, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement as described in the first aspect
  • N frequency division coverage code sequences are generated based on the subsequence of the target length as the basic unit and the resource mapping rules corresponding to the subsequence of the target length. According to the N frequency division coverage The code sequence generates and sends the target demodulation reference signal for channel estimation, so that the target DMRS can support more ports and increase the data traffic of transmission.
  • Figure 1 is a schematic structural diagram of a wireless communication system applicable to the embodiment of the present application.
  • Figure 2 is a schematic flowchart of a demodulation reference signal transmission method provided by an embodiment of the present application
  • Figure 3 is a schematic diagram of a demodulation reference signal provided by an embodiment of the present application.
  • Figure 4 is another schematic diagram of a demodulation reference signal provided by an embodiment of the present application.
  • Figure 5 is another schematic diagram of a demodulation reference signal provided by an embodiment of the present application.
  • Figure 6 is a schematic diagram of a resource pattern for despreading a demodulation reference signal provided by an embodiment of the present application
  • Figure 7 is a schematic diagram of another resource pattern for despreading a demodulation reference signal provided by an embodiment of the present application.
  • Figure 8 is a schematic structural diagram of a demodulation reference signal transmission device provided by an embodiment of the present application.
  • Figure 9 is another schematic flowchart of a demodulation reference signal transmission method provided by an embodiment of the present application.
  • Figure 10 is another structural schematic diagram of a demodulation reference signal transmission device provided by an embodiment of the present application.
  • Figure 11 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Figure 12 is a schematic structural diagram of a terminal that implements an embodiment of the present application.
  • Figure 13 is a schematic structural diagram of a network-side device that implements an embodiment of the present application.
  • first, second, etc. in the description and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and that "first" and “second” are distinguished objects It is usually one type, and the number of objects is not limited.
  • the first object can be one or multiple.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the related objects are in an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced, LTE-A Long Term Evolution
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency Division Multiple Access
  • system and “network” in the embodiments of this application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies.
  • NR New Radio
  • the following description describes a New Radio (NR) system for example purposes, and uses NR terminology in much of the following description, but these techniques can also be applied to applications other than NR system applications, such as 6th Generation , 6G) communication system.
  • NR New Radio
  • FIG. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable.
  • the wireless communication system includes a terminal 11 and a network side device 12.
  • the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a palmtop computer, a netbook, or a super mobile personal computer.
  • Tablet Personal Computer Tablet Personal Computer
  • laptop computer laptop computer
  • PDA Personal Digital Assistant
  • PDA Personal Digital Assistant
  • wearable devices include: smart watches , smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc.
  • the network side device 12 may include an access network device or a core network device, where the access network device 12 may also be called a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or Wireless access network unit.
  • the access network device 12 may include a base station, a Wireless Local Area Network (WLAN) access point or a WiFi node, etc.
  • WLAN Wireless Local Area Network
  • the base station may be called a Node B, an evolved Node B (eNB), an access point, Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), home B-node, home evolved B-node , Transmitting Receiving Point (TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiment of the present application This introduction only takes the base station in the NR system as an example, and does not limit the specific type of base station.
  • eNB evolved Node B
  • BTS Base Transceiver Station
  • BSS Basic Service Set
  • ESS Extended Service Set
  • TRP Transmitting Receiving Point
  • the core network equipment may include but is not limited to at least one of the following: core network node, core network function, mobility management entity (Mobility Management Entity, MME), access mobility management function (Access and Mobility Management Function, AMF), session management function (Session Management Function, SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Service Discovery function (Edge Application Server Discovery Function, EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), centralized network configuration ( Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (Local NEF, or L-NEF), Binding Support Function (Binding Support Function, BSF), application function (Application Function, AF), etc.
  • MME mobility management entity
  • AMF Access and Mobility Management Function
  • SMF Session Management Function
  • UPF User Plane Function
  • PCF Policy Control Function
  • this embodiment of the present application provides a demodulation reference signal transmission method.
  • the execution subject of this method is a first communication device.
  • the first communication device can be a network side device or a terminal.
  • this method It may be executed by software or hardware installed on the first communication device.
  • the method include the following steps.
  • the first communication device receives the target demodulation reference signal from the second communication device.
  • the target demodulation reference signal is generated based on N frequency division coverage code sequences.
  • the N frequency division coverage code sequences take a subsequence of target length as a basic unit, and use a subsequence corresponding to the target length as a basic unit. Resource mapping rules are generated, the frequency division coverage code sequence is used for code division multiplexing (Code Division Multiplexing, CDM) of the port of the target demodulation reference signal, and the N is a positive integer.
  • CDM Code Division Multiplexing
  • the second communication device may be a network side device or a terminal.
  • the second communication device is preconfigured with subsequences of multiple lengths.
  • the subsequences of multiple lengths can be designed according to actual needs. For example, they can be subsequences with lengths of 2, 4, and 6 respectively.
  • the second communication device determines a subsequence of target length from the subsequences of multiple lengths, and then generates N frequency division coverage code sequences according to the resource mapping rules corresponding to the subsequences of target length.
  • Each frequency division coverage code sequence is
  • the sub-coverage code sequence can respectively correspond to 1 or 2 ports (Port) among the M ports belonging to the same code division multiplexing group (CDM group) in the target DMRS.
  • the target DMRS may be divided into a first configuration type and a second configuration type, where the first configuration type is related to DMRS configuration type 1, and the second configuration type is related to DMRS configuration type 2.
  • the first communication device performs channel estimation on the target demodulation reference signal.
  • the first communication device may perform channel estimation on the target DMRS based on a preset despreading rule.
  • each CDM may only contain up to two DMRS ports that are orthogonal to each other, and the frequency division generated by taking the subsequence of the target length as the basic unit
  • the coverage code, and then the DMRS generated based on the frequency division coverage code, can make each CDM group contain more DMRS ports that are orthogonal to each other, thereby increasing the total number of DMRS ports supported by the system.
  • the embodiments of the present application use subsequences based on the target length as the basic unit, and generate N frequency division coverage code sequences based on the resource mapping rules corresponding to the subsequences of the target length.
  • the N frequency division coverage code sequences generate and send the target demodulation reference signal for channel estimation, so that the target DMRS can support more ports and increase the data traffic of transmission.
  • the subsequence of the target length is one of the following:
  • the first length is 2, the second length is 4, and the third length is 6.
  • the subsequence of the first length is at least one of the following:
  • the third subsequence can be generated by multiplying the first subsequence by -1
  • the fourth subsequence can be generated by multiplying the second subsequence by -1.
  • the subsequence of the second length is at least one of the following:
  • the seventh subsequence [+1,+1,-1,-1];
  • the eighth subsequence [+1,-1,-1,+1].
  • the subsequence of the third length is at least one of the following:
  • the ninth subsequence [+1,+1,+1,+1,+1,+1];
  • the frequency division coverage code sequence is generated by one of the following methods:
  • the subsequence of the first length is mapped to the two subcarriers on the symbols occupied by the port in the form of the first mapping rule, and the two subcarriers belong to the same A Radio Bearer (RB);
  • RB Radio Bearer
  • the subsequence of the second length is mapped to the 4 subcarriers on the symbol occupied by the port in the form of the second mapping rule, and the 4 subcarriers belong to the same One RB or two RBs;
  • the corresponding first mapping rule is as follows:
  • the first mapping rule is to sequentially map the first subsequence to the subcarriers on the symbols occupied by the port.
  • the first mapping rule is to sequentially map the second subsequence to the subcarriers on the symbols occupied by the port.
  • the first mapping rule is to alternately map the first subsequence and the third subsequence. subcarriers on the symbols occupied by the port.
  • the first mapping rule is to alternate the second subsequence and the fourth subsequence.
  • CDM group 0 and CDM group 1 respectively correspond to resource units of different patterns, where the diagonal line image CDM group 0 corresponding to the resource unit corresponds to port 0 and port 1, CDM group 1 corresponding to the resource unit in the blank pattern corresponds to port 2 and port 3, CDM group 0 corresponding to the resource unit in the horizontal line image corresponds to port 8 and port 9, dot
  • the CDM group 1 corresponding to the resource in the image image corresponds to port 10 and port 11.
  • the first subsequence [+1, +1] is mapped to every two adjacent subcarriers occupied by port 0; on port 1, the second subsequence [+1,-1] is mapped For every 2 adjacent subcarriers occupied by port 1; on port 8, the first subsequence [+1,+1] and the third subsequence [-1,-1] alternate in the form of the first mapping rule Map to every 2 adjacent subcarriers occupied by port 8; on port 9, the second subsequence [+1,-1] and the fourth subsequence [-1,+1] are in the form of the first mapping rule Alternately mapped to every two adjacent subcarriers occupied by port 9.
  • Figure 3 takes 2 RBs as an example, but it can be applied to any number of RBs.
  • the corresponding second mapping rule may be to use the fifth subsequence respectively.
  • the sixth subsequence, the seventh subsequence or the eighth subsequence are the basic units and are sequentially mapped to the subcarriers on the symbols occupied by the ports.
  • the fifth subsequence [+1, +1, +1, +1] is used as the basic unit to be mapped to DMRS port 0 and the sixth subsequence [+1, -1,+1,-1] is the basic unit mapped to port 1, the seventh subsequence [+1,+1,-1,-1] is the basic unit mapped to port 8, and the eighth subsequence [+1,-1,-1,+1] is the basic unit mapped to port 9.
  • the ninth subsequence [+1,+1,+1,+1,+1] is used as the basic unit to map to port 0 of the DMRS, and the tenth subsequence is mapped to port 0 of the DMRS.
  • the subsequence [+1,-1,+1,-1,+1,-1] is the basic unit mapped to port 1
  • the eleventh subsequence [+1,+1,-1,-1,+1 ,+1] is the basic unit mapped to port 8
  • the twelfth subsequence [+1,-1,-1,+1,+1,-1] is the basic unit mapped to port 9.
  • FIG. 5 it is a DMRS pattern of the second configuration type single symbol structure, including three CDM groups: CDM group 0, CDM group 1 and CDM group 2 respectively corresponding to resource units of different patterns, where the slash image CDM group 0 corresponding to the resource unit corresponds to port 0 and port 1, CDM group 1 corresponding to the resource unit in the blank pattern corresponds to port 2 and port 3, CDM group 2 corresponding to the resource unit in the vertical line pattern corresponds to port 4 and port 5, CDM group 0 corresponding to the resource unit in the horizontal line image corresponds to port 12 and port 13, CDM group 1 corresponding to the resource in the cross image corresponds to port 14 and port 15, CDM group 2 corresponding to the resource in the dot image corresponds to port 16 and port 17 .
  • CDM group 0 corresponding to the resource unit corresponds to port 0 and port 1
  • CDM group 1 corresponding to the resource unit in the blank pattern corresponds to port 2 and port 3
  • CDM group 2 corresponding to the resource unit in the vertical line pattern corresponds
  • the first subsequence [+1, +1] is mapped to every two adjacent subcarriers occupied by port 0; on On port 1, the second subsequence [+1,-1] is mapped to every two adjacent subcarriers occupied by port 1; on port 12, the first subsequence [+1,+1] and the third subcarrier
  • the sequence [-1,-1] is alternately mapped to every two adjacent subcarriers occupied by port 12 in the form of the first mapping rule; on port 13, the second subsequence [+1,-1] and the fourth
  • the subsequence [-1, +1] is alternately mapped to every two adjacent subcarriers occupied by port 13 in the form of the first mapping rule.
  • Figure 5 takes 1 RB as an example, which can be applied to any number of RBs.
  • the fifth subsequence [+1, +1, +1, +1] is used as the basic unit to map to port 0 of the DMRS, and the sixth subsequence [+1 ,-1,+1,-1] as the basic unit mapped to port 1, the seventh subsequence [+1,+1,-1,-1] as the basic unit mapped to port 12, the eighth subsequence [ +1,-1,-1,+1] is the basic unit mapped to port 13.
  • CDM group 0 the above four subsequences of the second length are mapped to the four adjacent subcarriers 0, 1, 6, and 7 of RB0 in the form of the second mapping rule;
  • Figure 5 shows 1 RB is taken as an example, and it can be applied to any number of RBs.
  • the frequency division coverage code sequence is generated using the starting subcarrier of the Common Resource Block (CRB) with sequence number 0 as the starting position.
  • CRB Common Resource Block
  • the starting subcarrier is related to the CDM group.
  • the frequency division coverage code sequence corresponding to CDM group 0 is the first common resource block with sequence number 0.
  • One subcarrier is generated as the starting position; the frequency division coverage code sequence corresponding to CDM group 1 is generated with the second subcarrier of the common resource block with sequence number 0 as the starting position.
  • the target demodulation reference signal is of the first configuration type or A demodulation reference signal of a second configuration type; wherein the first configuration type is related to demodulation reference signal configuration type 1, and the second configuration type is related to demodulation reference signal configuration type 2.
  • the embodiments of the present application design subsequences of various lengths. columns, and map the subsequence of the target length to the port to generate a frequency division coverage code sequence as the basic unit, and then generate the target DMRS, so that the target DMRS can support more ports and increase the data traffic of the transmission.
  • the method further includes:
  • the terminal receives despreading instruction information from the network side device, and the despreading instruction information is used to instruct the terminal to corresponding despreading window information when performing channel estimation of the target demodulation reference signal.
  • the expanded window information includes the despread window length.
  • the length of the despreading window may be varied. In the embodiment of this application, the length of the despreading window is only 2 or 4 as an example for illustration.
  • the step S220 includes:
  • the terminal performs channel estimation on the target demodulation reference signal based on the despreading window length.
  • the terminal uses the port to The two adjacent subcarriers occupied are used as the despreading window for joint channel estimation.
  • the terminal uses the port to The four adjacent subcarriers occupied by the despreading window are used for joint channel estimation.
  • the DMRS channel estimation method of the terminal is as shown in Figure 6.
  • a joint channel estimation is performed based on 4 adjacent subcarriers in despreading window 1
  • a joint channel estimation is performed based on 4 adjacent subcarriers in despreading window 2 that is, based on a Two despreading windows within the RB are used for channel estimation.
  • the four DMRS ports belonging to the same CDM group are orthogonal to each other to ensure channel estimation performance.
  • the method before the terminal receives despreading indication information from the network side device, the method further includes:
  • the terminal reports the channel estimation capability of the terminal to the network side device.
  • the channel estimation capability is used to indicate whether the terminal supports demodulation reference signal channel estimation based on a despreading window length of 4.
  • the embodiments of the present application send despreading instruction information to the terminal, so that the terminal performs channel estimation on the DMRS according to the despreading window length, thereby making the channel estimation of the target DMRS more accurate.
  • the first communication device when the first communication device is a terminal and the second communication device is a network side device, before the terminal receives the target demodulation reference signal from the network side device, the The above methods also include:
  • the terminal reports the downlink data receiving capability supported by the terminal to the network side device.
  • the downlink data receiving capability includes the RB number type capability of the Physical Downlink Shared Channel (PDSCH) supported by the terminal. .
  • PDSCH Physical Downlink Shared Channel
  • the number of RBs of the PDSCH is an even number
  • the number of RBs of the PDSCH is an odd number or an even number, that is, there is no limit on the parity of the number of RBs of the PDSCH.
  • the terminal receives target configuration information from the network side device, the target configuration information corresponds to the downlink data receiving capability reported by the terminal, and the target configuration information is used to instruct the terminal to receive RB number type of PDSCH.
  • the network side device may send target configuration information to indicate that the number of RBs of the PDSCH subsequently transmitted by the terminal will all be an even number.
  • the The terminal may use a corresponding channel estimation method to demodulate the PDSCH.
  • the network side device can send target configuration information to indicate that the number of RBs of the PDSCH subsequently transmitted by the terminal will be an even number or there will be no limit. (That is, the number of RBs may be an even number or an odd number).
  • the terminal may use a corresponding channel estimation method to demodulate the PDSCH according to the target configuration information.
  • the terminal can perform channel estimation based on two despreading windows within one RB, thereby solving the channel estimation problem when the number of RBs in the PDSCH is an odd number. That is to say, if the terminal supports channel estimation based on two despreading windows within one RB, the terminal can support an odd number of RBs for the PDSCH it receives. It should be noted that channel estimation based on two despreading windows within one RB is only one of the methods for the terminal to perform channel estimation, and other channel estimation methods that enable the terminal to support receiving PDSCH with an odd number of RBs are not excluded.
  • the embodiments of the present application determine the number and type of RBs of the PDSCH based on the downlink data reception capability reported by the terminal, thereby improving the performance of channel estimation.
  • the execution subject may be the demodulation reference signal Signal transmission device.
  • the demodulation reference signal transmission device performed by the demodulation reference signal transmission method is used as an example to illustrate the demodulation reference signal transmission device provided by the embodiment of the present application.
  • the demodulation reference signal transmission device includes: a transceiver module 701 and a calculation module 702.
  • the transceiver module 701 is used to receive a target demodulation reference signal from a second communication device; the calculation module 702 is used to perform channel estimation on the target demodulation reference signal; wherein the target demodulation reference signal is calculated based on N Frequency division coverage code sequences are generated.
  • the N frequency division coverage code sequences are based on subsequences of target length and are generated using resource mapping rules corresponding to the subsequences of target length.
  • the frequency division coverage code sequences are Code division multiplexing of ports used for the target demodulation reference signal, where N is a positive integer.
  • the embodiments of the present application use subsequences based on the target length as the basic unit, and generate N frequency division coverage code sequences based on the resource mapping rules corresponding to the subsequences of the target length.
  • the N frequency division coverage code sequences generate and send the target demodulation reference signal for channel estimation, so that the target DMRS can support more ports and increase the data traffic of transmission.
  • the subsequence of the target length is one of the following:
  • the first length is 2, the second length is 4, and the third length is 6.
  • frequency division coverage code sequence is generated by one of the following methods:
  • the subsequence of the first length is mapped to the two subcarriers on the symbols occupied by the port in the form of the first mapping rule, and the two subcarriers belong to the same a RB;
  • the subsequence of the second length is mapped to the 4 subcarriers on the symbol occupied by the port in the form of the second mapping rule, and the 4 subcarriers belong to the same One RB or two RBs;
  • subsequence of the first length is at least one of the following:
  • subsequence of the second length is at least one of the following:
  • the eighth subsequence [+1,-1,-1,+1].
  • subsequence of the third length is at least one of the following:
  • the ninth subsequence [+1,+1,+1,+1,+1,+1];
  • the first mapping rule is to combine the first subsequence and the The third subsequence is alternately mapped to the subcarriers on the symbols occupied by the ports.
  • the first mapping rule is to combine the second subsequence and the fourth subsequence.
  • the fourth subsequence is alternately mapped to the subcarriers on the symbols occupied by the ports.
  • the frequency division coverage code sequence is generated using the starting subcarrier of the common resource block with sequence number 0 as the starting position.
  • the target demodulation reference signal is the first configuration type or the second configuration type. demodulation reference signal; wherein, the first configuration type is related to demodulation reference signal configuration type 1, and the second configuration type is related to demodulation reference signal configuration type 2.
  • the target demodulation reference signal is a first configuration type; wherein the first configuration type is the same as the demodulation Reference signal configuration type 1 related.
  • the embodiments of the present application design subsequences of multiple lengths, map the subsequences of the target length to the port to generate a frequency division coverage code sequence, and then generate the target DMRS, thereby making the target DMRS can support more ports and increase the data traffic of transmission.
  • the transceiver module 701 is also used to:
  • the despreading indication information is used to instruct the terminal to corresponding despreading window information when performing channel estimation of the target demodulation reference signal.
  • the despreading window information Includes despread window length.
  • calculation module 702 is used to calculate the target demodulation parameter based on the despread window length.
  • the signal is used for channel estimation.
  • despreading window length is 2 or 4.
  • calculation module 702 is used to perform at least one of the following:
  • the despreading window length is 2, for the ports in the target demodulation reference signal that belong to the same code division multiplexing group, the two adjacent subcarriers occupied by the port in symbols are used as the solution. Expand the window for joint channel estimation;
  • the four adjacent subcarriers occupied by the port in symbols are used as the solution. Expand the window for joint channel estimation.
  • the transceiving module 701 is also configured to report the channel estimation capability of the terminal to the network side device.
  • the channel estimation capability is used to indicate whether the terminal supports demodulation reference signal channel estimation based on a despreading window length of 4.
  • the embodiments of the present application send despreading instruction information to the terminal, so that the terminal performs channel estimation on the DMRS according to the despreading window length, thereby making the channel estimation of the target DMRS more accurate.
  • the transceiver module 701 it is also configured to report to the network side device the downlink data receiving capability supported by the terminal, where the downlink data receiving capability includes the RB number type capability of the PDSCH supported by the terminal.
  • the RB number type of the PDSCH includes the following one:
  • the number of RBs of the PDSCH is an even number
  • the number of RBs of the PDSCH is an odd number or an even number.
  • the transceiver module 701 is also configured to receive target configuration information from the network side device, where the target configuration information corresponds to the downlink data receiving capability reported by the terminal, and the target configuration information is used to indicate the PDSCH received by the terminal.
  • RB number type the target configuration information corresponds to the downlink data receiving capability reported by the terminal.
  • the embodiments of the present application determine the number and type of RBs of the PDSCH based on the downlink data reception capability reported by the terminal, thereby improving the performance of channel estimation.
  • the demodulation reference signal transmission device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or may be a component in the electronic device, such as an integrated circuit or chip.
  • the electronic device may be a terminal or other devices other than the terminal.
  • terminals may include but are not limited to the types of terminals 11 listed above, and other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., which are not specifically limited in the embodiment of this application.
  • the demodulation reference signal transmission device provided by the embodiment of the present application can implement each process implemented by the method embodiments of Figures 2 to 7, and achieve the same technical effect. To avoid duplication, the details will not be described here.
  • the second communication device generates and sends a target demodulation reference signal to the first communication device according to the N frequency division coverage code sequences;
  • the N is a positive integer.
  • Steps S810-S820 can implement the method embodiment shown in Figure 2 and obtain the same technical effect, and the repeated parts will not be described again here.
  • the embodiments of the present application use subsequences based on the target length as the basic unit, and generate N frequency division coverage code sequences based on the resource mapping rules corresponding to the subsequences of the target length.
  • the N frequency division coverage code sequences generate and send the target demodulation reference signal for channel estimation, so that the target DMRS can support more ports and increase the data traffic of transmission.
  • the subsequence of the target length is one of the following:
  • the first length is 2, the second length is 4, and the third length is 6.
  • step S810 includes one of the following methods:
  • the subsequence of the first length is mapped to the two subcarriers on the symbols occupied by the port in the form of the first mapping rule, and the two subcarriers belong to the same a RB;
  • the subsequence of the second length is mapped to the 4 subcarriers on the symbol occupied by the port in the form of the second mapping rule, and the 4 subcarriers belong to the same One RB or two RBs;
  • subsequence of the first length is at least one of the following:
  • subsequence of the second length is at least one of the following:
  • the seventh subsequence [+1,+1,-1,-1];
  • the eighth subsequence [+1,-1,-1,+1].
  • the ninth subsequence [+1,+1,+1,+1,+1,+1];
  • the first mapping rule is to alternately map the first subsequence and the third subsequence to the port occupied subcarriers on the symbol.
  • the first mapping rule is to alternately map the second subsequence and the fourth subsequence to the ports occupied by the port. subcarriers on the symbol.
  • the frequency division coverage code sequence is generated using the starting subcarrier of the common resource block with sequence number 0 as the starting position.
  • the target demodulation reference signal is the first configuration type or the second configuration type. demodulation reference signal; wherein, the first configuration type is related to demodulation reference signal configuration type 1, and the second configuration type is related to demodulation reference signal configuration type 2.
  • the demodulation reference signal is a first configuration type; wherein the first configuration type is the same as the demodulation reference signal.
  • Signal configuration type 1 related.
  • the embodiments of the present application design subsequences of multiple lengths, map the subsequences of the target length to the port to generate a frequency division coverage code sequence, and then generate the target DMRS, thereby making the target DMRS can support more ports and increase the data traffic of transmission.
  • the network side device sends despreading instruction information to the terminal, and the despreading instruction information is used to instruct the terminal to corresponding despreading window information when performing channel estimation of the target demodulation reference signal.
  • the expanded window information includes the despread window length.
  • the method further includes:
  • the network side device receives the channel estimation capability of the terminal from the terminal.
  • the channel estimation capability is used to indicate whether the terminal supports demodulation reference signal channel estimation based on a despreading window length of 4.
  • the embodiments of the present application send despreading instruction information to the terminal, so that the terminal performs channel estimation on the DMRS according to the despreading window length, thereby making the channel estimation of the target DMRS more accurate.
  • the method also includes:
  • the network side device receives from the terminal the downlink data reception capability supported by the terminal, where the downlink data reception capability includes the RB number type capability of the PDSCH supported by the terminal.
  • the RB number type of the PDSCH includes the following one:
  • the number of RBs of the PDSCH is an even number
  • the network side device sends target configuration information to the terminal.
  • the target configuration information corresponds to the downlink data reception capability supported by the terminal received by the network side device from the terminal.
  • the target configuration information is used Indicates the RB number type of the PDSCH received by the terminal.
  • the execution subject may be a demodulation reference signal transmission device.
  • the demodulation reference signal transmission device performed by the demodulation reference signal transmission method is used as an example to illustrate the demodulation reference signal transmission device provided by the embodiment of the present application.
  • the generation module 901 is configured to use a subsequence of a target length as a basic unit and generate N frequency division coverage code sequences using a resource mapping rule corresponding to the subsequence of the target length.
  • the frequency division coverage code sequence is used for Code division multiplexing of ports of the target demodulation reference signal demodulation reference signal;
  • the transmission module 902 is configured to generate and send the target demodulation reference signal to the first communication device according to the N frequency division coverage code sequences; wherein, The N is a positive integer.
  • the subsequence of the target length is one of the following:
  • the first length is 2, the second length is 4, and the third length is 6.
  • the generation module 901 is used to perform one of the following methods:
  • the subsequence of the first length is mapped to the two subcarriers on the symbols occupied by the port in the form of the first mapping rule, and the two subcarriers belong to the same a RB;
  • the subsequence of the second length is mapped to the 4 subcarriers on the symbol occupied by the port in the form of the second mapping rule, and the 4 subcarriers belong to the same One RB or two RBs;
  • subsequence of the first length is at least one of the following:
  • subsequence of the second length is at least one of the following:
  • the seventh subsequence [+1,+1,-1,-1];
  • the eighth subsequence [+1,-1,-1,+1].
  • subsequence of the third length is at least one of the following:
  • the ninth subsequence [+1,+1,+1,+1,+1,+1];
  • the frequency division coverage code sequence is generated with the first subsequence and the third subsequence as the basic unit.
  • the first mapping rule is to alternately map the first subsequence and the third subsequence to the subcarriers on the symbols occupied by the port.
  • the first mapping rule is to alternately map the second subsequence and the fourth subsequence to the ports occupied by the port. subcarriers on the symbol.
  • the frequency division coverage code sequence is generated using the starting subcarrier of the common resource block with sequence number 0 as the starting position.
  • the target demodulation reference signal is the first configuration type or the second configuration type. demodulation reference signal; wherein, the first configuration type is related to demodulation reference signal configuration type 1, and the second configuration type is related to demodulation reference signal configuration type 2.
  • the demodulation reference signal is a first configuration type; wherein the first configuration type is the same as the demodulation reference signal.
  • Signal configuration type 1 related.
  • the embodiments of the present application design subsequences of multiple lengths, map the subsequences of the target length to the port to generate a frequency division coverage code sequence, and then generate the target DMRS, thereby making the target DMRS can support more ports and increase the data traffic of transmission.
  • the transmission module 902 is further configured to send despreading indication information to the terminal,
  • the despreading indication information is used to indicate the corresponding despreading window information when the terminal performs channel estimation of the target demodulation reference signal, and the despreading window information includes a despreading window length.
  • despreading window length is 2 or 4.
  • the transmission module 902 is also configured to receive the channel estimation capability of the terminal from the terminal.
  • the channel estimation capability is used to indicate whether the terminal supports demodulation reference signal channel estimation based on a despreading window length of 4.
  • the embodiments of the present application send despreading instruction information to the terminal, so that the terminal performs channel estimation on the DMRS according to the despreading window length, thereby making the channel estimation of the target DMRS more accurate.
  • the transmission module 902 is further configured to receive from the terminal the terminal-supported Downlink data reception capability, the downlink data reception capability includes the RB number type capability of the physical downlink shared channel PDSCH supported by the terminal.
  • the RB number type of the PDSCH includes the following one:
  • the number of RBs of the PDSCH is an even number
  • the number of RBs of the PDSCH is an odd number or an even number.
  • the transmission module 902 is also configured to send target configuration information to the terminal, where the target configuration information corresponds to the downlink data reception capability supported by the terminal received by the network side device from the terminal.
  • the target The configuration information is used to indicate the number and type of RBs of the PDSCH received by the terminal.
  • the demodulation reference signal transmission device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or may be a component in the electronic device, such as an integrated circuit or chip.
  • the electronic device may be a terminal or other devices other than the terminal.
  • terminals may include but are not limited to the types of terminals 11 listed above, and other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., which are not specifically limited in the embodiment of this application.
  • the demodulation reference signal transmission device provided by the embodiment of the present application can implement each process implemented by the method embodiment in Figure 9 and achieve the same technical effect. To avoid duplication, the details will not be described here.
  • this embodiment of the present application also provides a communication device 1000, which includes a processor 1001 and a memory 1002.
  • the memory 1002 stores programs or instructions that can be run on the processor 1001, such as , when the communication device 1000 is a terminal, when the program or instruction is executed by the processor 1001, each step of the above demodulation reference signal transmission method embodiment is implemented, and the same technical effect can be achieved.
  • the communication device 1000 is a network-side device, when the program or instruction is executed by the processor 1001, the steps of the above demodulation reference signal transmission method embodiment are implemented, and the same technical effect can be achieved. To avoid duplication, they will not be described again here. .
  • An embodiment of the present application also provides a terminal, including a processor and a communication interface.
  • the processor is configured to perform channel estimation on the target demodulation reference signal
  • the communication interface is configured to receive the target demodulation reference signal from a second communication device.
  • This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment.
  • Each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect.
  • FIG. 12 is a schematic diagram of the hardware structure of a terminal that implements an embodiment of the present application.
  • the terminal 1100 may also include a power supply (such as a battery) that supplies power to various components.
  • the power supply may be logically connected to the processor 1110 through a power management system, thereby managing charging, discharging, and power consumption through the power management system. Management and other functions.
  • the terminal structure shown in Figure 12 does not constitute a limitation of the terminal, and the terminal may include more or fewer components than shown in the figure. Or combine certain components, or arrange different components, which will not be described again here.
  • the input unit 1104 may include a graphics processing unit (GPU) 11041 and a microphone 11042.
  • the GPU 11041 is used for recording data by an image capture device (such as a camera) in the video capture mode or the image capture mode.
  • the image data obtained from still pictures or videos is processed.
  • the display unit 1106 may include a display panel 11061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 1107 includes at least one of a touch panel 11071 and other input devices 11072 .
  • Touch panel 11071 also called touch screen.
  • the touch panel 11071 may include two parts: a touch detection device and a touch controller.
  • Other input devices 11072 may include but are not limited to physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be described again here.
  • the radio frequency unit 1101 after receiving downlink data from the network side device, the radio frequency unit 1101 can transmit it to the processor 1110 for processing; in addition, the radio frequency unit 1101 can send uplink data to the network side device.
  • the radio frequency unit 1101 includes, but is not limited to, an antenna, amplifier, transceiver, coupler, low noise amplifier, duplexer, etc.
  • Memory 1109 may be used to store software programs or instructions as well as various data.
  • the memory 1109 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instructions required for at least one function (such as a sound playback function, Image playback function, etc.) etc.
  • memory 1109 may include volatile memory or nonvolatile memory, or memory 1109 may include both volatile and nonvolatile memory.
  • non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically removable memory.
  • Volatile memory can be random access memory (Random Access Memory, RAM), static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synch link DRAM) , SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DRRAM).
  • RAM Random Access Memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • synchronous dynamic random access memory Synchronous DRAM, SDRAM
  • Double data rate synchronous dynamic random access memory Double Data Rate SDRAM, DDRSDRAM
  • Enhanced SDRAM, ESDRAM synchronous link dynamic random access memory
  • Synch link DRAM synchronous link dynamic random access memory
  • SLDRAM direct memory bus random access memory
  • the processor 1110 may include one or more processing units; optionally, the processor 1110 integrates an application processor and a modem processor, where the application processor mainly handles operations related to the operating system, user interface, application programs, etc., Modem processors mainly process wireless communication signals, such as baseband processors. It can be understood that the above modem processor may not be integrated into the processor 1110.
  • the radio frequency unit 1101 is used to receive the target demodulation reference signal from the second communication device;
  • Processor 1110 configured to perform channel estimation on the target demodulation reference signal
  • the target demodulation reference signal is generated based on N frequency division coverage code sequences.
  • the N frequency division coverage code sequences take a subsequence of target length as a basic unit, and use a subsequence corresponding to the target length as a basic unit. Resource mapping rules are generated, the frequency division coverage code sequence is used for code division multiplexing of ports of the target demodulation reference signal, and the N is a positive integer.
  • the embodiments of the present application use subsequences based on the target length as the basic unit, and generate N frequency division coverage code sequences based on the resource mapping rules corresponding to the subsequences of the target length.
  • the N frequency division coverage code sequences generate and send the target demodulation reference signal for channel estimation, so that the target DMRS can support more ports and increase the data traffic of transmission.
  • the subsequence of the target length is one of the following:
  • the first length is 2, the second length is 4, and the third length is 6.
  • frequency division coverage code sequence is generated by one of the following methods:
  • the subsequence of the first length is mapped to the two subcarriers on the symbols occupied by the port in the form of the first mapping rule, and the two subcarriers belong to the same a RB;
  • the subsequence of the second length is mapped to the 4 subcarriers on the symbol occupied by the port in the form of the second mapping rule, and the 4 subcarriers belong to the same One RB or two RBs;
  • subsequence of the first length is at least one of the following:
  • subsequence of the second length is at least one of the following:
  • the seventh subsequence [+1,+1,-1,-1];
  • the eighth subsequence [+1,-1,-1,+1].
  • subsequence of the third length is at least one of the following:
  • the ninth subsequence [+1,+1,+1,+1,+1,+1];
  • the first mapping rule is to combine the first subsequence and the The third subsequence is alternately mapped to the subcarriers on the symbols occupied by the ports.
  • the first mapping rule is to combine the second subsequence and the fourth subsequence.
  • the fourth subsequence is alternately mapped to the subcarriers on the symbols occupied by the ports.
  • the frequency division coverage code sequence is generated using the starting subcarrier of the common resource block with sequence number 0 as the starting position.
  • the target demodulation reference signal is the first configuration type or the second configuration type. demodulation reference signal; wherein, the first configuration type is related to demodulation reference signal configuration type 1, and the second configuration type is related to demodulation reference signal configuration type 2.
  • the target demodulation reference signal is a first configuration type; wherein the first configuration type is the same as the demodulation Reference signal configuration type 1 related.
  • the embodiment of the present application enables the target DMRS to support more ports and increase the data traffic of transmission.
  • the radio frequency unit 1101 is also used to:
  • the despreading indication information is used to instruct the terminal to corresponding despreading window information when performing channel estimation of the target demodulation reference signal.
  • the despreading window information Includes despread window length.
  • the processor 1110 is configured to perform channel estimation on the target demodulation reference signal based on the despreading window length.
  • despreading window length is 2 or 4.
  • processor 1110 is configured to perform at least one of the following:
  • the despreading window length is 2, for the ports in the target demodulation reference signal that belong to the same code division multiplexing group, the two adjacent subcarriers occupied by the port in symbols are used as the solution. Expand the window for joint channel estimation;
  • the despreading window length is 4, for the target demodulation reference signal belonging to For ports in the same code division multiplexing group, joint channel estimation is performed using the four adjacent subcarriers occupied by the port on symbols as the despreading window.
  • the radio frequency unit 1101 is further configured to report the channel estimation capability of the terminal to the network side device.
  • the channel estimation capability is used to indicate whether the terminal supports demodulation reference signal channel estimation based on a despreading window length of 4.
  • the radio frequency unit 1101 is also configured to report to the network side device the downlink data receiving capability supported by the terminal.
  • the downlink data receiving capability includes the RB number type capability of the physical downlink shared channel PDSCH supported by the terminal.
  • the RB number type of the PDSCH includes the following one:
  • the number of RBs of the PDSCH is an even number
  • the number of RBs of the PDSCH is an odd number or an even number.
  • the radio frequency unit 1101 is also configured to receive target configuration information from the network side device.
  • the target configuration information corresponds to the downlink data receiving capability reported by the terminal.
  • the target configuration information is used to instruct the terminal to receive RB number type of PDSCH.
  • the embodiments of the present application make the channel estimation of the target DMRS more accurate.
  • Embodiments of the present application also provide a network-side device, including a processor and a communication interface.
  • the processor is configured to use a subsequence of a target length as a basic unit, and generate N using resource mapping rules corresponding to the subsequence of a target length.
  • Frequency division coverage code sequence the frequency division coverage code sequence is used for code division multiplexing of the port of the target demodulation reference signal demodulation reference signal
  • the communication interface is used to generate and transmit to the first Nth frequency division coverage code sequence according to the N frequency division coverage code sequences.
  • a communications device transmits a target demodulation reference signal.
  • This network-side device embodiment corresponds to the above-mentioned network-side device method embodiment.
  • Each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this network-side device embodiment, and can achieve the same technical effect.
  • the embodiment of the present application also provides a network side device.
  • the network side device 1200 includes: an antenna 121 , a radio frequency device 122 , a baseband device 123 , a processor 124 and a memory 125 .
  • the antenna 121 is connected to the radio frequency device 122 .
  • the radio frequency device 122 receives information through the antenna 121 and sends the received information to the baseband device 123 for processing.
  • the baseband device 123 processes the information to be sent and sends it to the radio frequency device 122.
  • the radio frequency device 122 processes the received information and then sends it out through the antenna 121.
  • the method performed by the network side device in the above embodiment can be implemented in the baseband device 123, which includes a baseband processor.
  • the baseband device 123 may include, for example, at least one baseband board on which multiple chips are disposed. As shown in FIG. 13 , one of the chips is, for example, a baseband processor, which communicates with the memory through a bus interface. 125 connection to call the program in the memory 125 to perform the network device operations shown in the above method embodiment.
  • the network side device may also include a network interface 126, which is, for example, a common public radio interface (CPRI).
  • a network interface 126 which is, for example, a common public radio interface (CPRI).
  • CPRI common public radio interface
  • the network side device 1200 in this embodiment of the present invention also includes: instructions or programs stored in the memory 125 and executable on the processor 124.
  • the processor 124 calls the instructions or programs in the memory 125 to execute each of the steps shown in Figure 7. The method of module execution and achieving the same technical effect will not be described in detail here to avoid duplication.
  • Embodiments of the present application also provide a readable storage medium, with programs or instructions stored on the readable storage medium.
  • the program or instructions are executed by a processor, each process of the above demodulation reference signal transmission method embodiment is implemented, and can achieve the same technical effect, so to avoid repetition, we will not repeat them here.
  • the processor is the processor in the terminal described in the above embodiment.
  • the readable storage medium includes computer readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disk or optical disk, etc.
  • An embodiment of the present application further provides a chip.
  • the chip includes a processor and a communication interface.
  • the communication interface is coupled to the processor.
  • the processor is used to run programs or instructions to implement the above demodulation reference signal transmission method.
  • Each process of the embodiment can achieve the same technical effect, so to avoid repetition, it will not be described again here.
  • chips mentioned in the embodiments of this application may also be called system-on-chip, system-on-a-chip, system-on-chip or system-on-chip, etc.
  • Embodiments of the present application further provide a computer program/program product.
  • the computer program/program product is stored in a storage medium.
  • the computer program/program product is executed by at least one processor to implement the above-mentioned demodulation reference signal transmission.
  • Each process of the method embodiment can achieve the same technical effect, so to avoid repetition, it will not be described again here.
  • Embodiments of the present application also provide a demodulation reference signal transmission system, including: a terminal and a network side device.
  • the terminal can be used to perform the steps of the demodulation reference signal transmission method as described above.
  • the network side device can be used to The steps of the demodulation reference signal transmission method as described above are performed.
  • the methods of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better. implementation.
  • the technical solution of the present application can be embodied in the form of a computer software product that is essentially or contributes to the existing technology.
  • the computer software product is stored in a storage medium (such as ROM/RAM, disk , CD), including several instructions to cause a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in various embodiments of this application.

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Abstract

本申请公开了一种解调参考信号传输方法、装置、终端及网络侧设备，属于移动通信领域，本申请实施例的解调参考信号传输方法包括：第一通信设备从第二通信设备接收目标解调参考信号；所述第一通信设备对所述目标解调参考信号进行信道估计；其中，所述目标解调参考信号根据N个频分覆盖码序列生成，所述N个频分覆盖码序列以目标长度的子序列为基本单位，并以与所述目标长度的子序列对应的资源映射规则生成，所述频分覆盖码序列用于所述目标解调参考信号的端口的码分复用，所述N为正整数。

Description

解调参考信号传输方法、装置、终端及网络侧设备
交叉引用
本发明要求在2022年04月02日提交中国专利局、申请号为202210346947.2、发明名称为“解调参考信号传输方法、装置、终端及网络侧设备”和在2022年09月09日提交中国专利局、申请号为202211103762.5、发明名称为“解调参考信号传输方法、装置、终端及网络侧设备”的中国专利申请的优先权，该申请的全部内容通过引用结合在本发明中。
技术领域
本申请属于移动通信技术领域，具体涉及一种解调参考信号传输方法、装置、终端及网络侧设备。
背景技术
在现有的新空口(New Radio，NR)系统中，数据信道解调参考信号(Demodulation Reference Signal，DMRS)基于长度为2的频分正交覆盖码(Frequency Division Orthogonal Cover Code，FD OCC)序列进行设计。在DMRS的类型为配置类型1(type 1)时，其最多支持的DMRS端口数为8个；在DMRS的类型为配置类型2(type 2)时，其最多支持的DMRS端口数为12个。
但随着网络中连接的终端数目与日俱增，现有的DMRS端口数无法满足实际的应用需求，限制了传输的数据流量。
发明内容
本申请实施例提供一种解调参考信号传输方法、装置、终端及网络侧设备，能够解决现有的DMRS端口数无法满足实际的应用需求，限制了传输的数据流量的问题。
第一方面，提供了一种解调参考信号传输方法，应用于第一通信设备，该方法包括：
第一通信设备从第二通信设备接收目标解调参考信号；
所述第一通信设备对所述目标解调参考信号进行信道估计；
其中，所述目标解调参考信号根据N个频分覆盖码序列生成，所述N个频分覆盖码序列以目标长度的子序列为基本单位，并以与所述目标长度的子序列对应的资源映射规则生成，所述频分覆盖码序列用于所述目标解调参考 信号的端口的码分复用，所述N为正整数。
第二方面，提供了一种解调参考信号传输装置，包括：
收发模块，用于从第二通信设备收目标解调参考信号；
计算模块，用于对所述目标解调参考信号进行信道估计；
其中，所述目标解调参考信号根据N个频分覆盖码序列生成，所述N个频分覆盖码序列以目标长度的子序列为基本单位，并以与所述目标长度的子序列对应的资源映射规则生成，所述频分覆盖码序列用于所述目标解调参考信号的端口的码分复用，所述N为正整数。
第三方面，提供了一种解调参考信号传输方法，应用于第二通信设备，该方法包括：
第二通信设备以目标长度的子序列为基本单位，并以与所述目标长度的子序列对应的资源映射规则生成N个频分覆盖码序列，所述频分覆盖码序列用于目标解调参考信号解调参考信号的端口的码分复用；
所述第二通信设备根据所述N个频分覆盖码序列生成并向第一通信设备发送目标解调参考信号；
其中，所述N为正整数。
第四方面，提供了一种解调参考信号传输装置，包括：
生成模块，用于以目标长度的子序列为基本单位，并以与所述目标长度的子序列对应的资源映射规则生成N个频分覆盖码序列，所述频分覆盖码序列用于目标解调参考信号解调参考信号的端口的码分复用；
传输模块，用于根据所述N个频分覆盖码序列生成并向第一通信设备发送目标解调参考信号；
其中，所述N为正整数。
第五方面，提供了一种终端，该终端包括处理器和存储器，所述存储器存储可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如第一方面所述的方法的步骤。
第六方面，提供了一种终端，包括处理器及通信接口，其中，所述处理器用于对所述目标解调参考信号进行信道估计，所述通信接口用于从第二通信设备收目标解调参考信号。
第七方面，提供了一种网络侧设备，该网络侧设备包括处理器和存储器，所述存储器存储可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如第一方面所述的方法的步骤。
第八方面，提供了一种网络侧设备，包括处理器及通信接口，其中，所述处理器用于以目标长度的子序列为基本单位，并以与所述目标长度的子序列对应的资源映射规则生成N个频分覆盖码序列，所述频分覆盖码序列用于 目标解调参考信号解调参考信号的端口的码分复用，所述通信接口用于根据所述N个频分覆盖码序列生成并向第一通信设备发送目标解调参考信号。
第九方面，提供了一种解调参考信号传输系统，包括：终端及网络侧设备，所述终端可用于执行如第一方面所述的解调参考信号传输方法的步骤，所述网络侧设备可用于执行如第三方面所述的解调参考信号传输方法的步骤。
第十方面，提供了一种可读存储介质，所述可读存储介质上存储程序或指令，所述程序或指令被处理器执行时实现如第一方面所述的方法的步骤，或者实现如第三方面所述的方法的步骤。
第十一方面，提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现如第一方面所述的方法，或实现如第三方面所述的方法。
第十二方面，提供了一种计算机程序/程序产品，所述计算机程序/程序产品被存储在存储介质中，所述计算机程序/程序产品被至少一个处理器执行以实现如第一方面所述的解调参考信号传输方法的步骤，或者实现如第三方面所述的解调参考信号传输方法的步骤。
在本申请实施例中，通过基于目标长度的子序列为基本单位，并以与所述目标长度的子序列对应的资源映射规则生成N个频分覆盖码序列，根据所述N个频分覆盖码序列生成并发送目标解调参考信号，用于进行信道估计，从而使目标DMRS能够支持更多的端口，提升传输的数据流量。
附图说明
图1是本申请实施例可应用的一种无线通信系统的结构示意图；
图2是本申请实施例提供的解调参考信号传输方法的一种流程示意图；
图3是本申请实施例提供的解调参考信号的一种图样示意图；
图4是本申请实施例提供的解调参考信号的另一种图样示意图；
图5是本申请实施例提供的解调参考信号的另一种图样示意图；
图6是本申请实施例提供的对解调参考信号进行解扩的一种资源图样示意图；
图7是本申请实施例提供的对解调参考信号进行解扩的另一种资源图样示意图；
图8是本申请实施例提供的解调参考信号传输装置的一种结构示意图；
图9是本申请实施例提供的解调参考信号传输方法的另一种流程示意图；
图10是本申请实施例提供的解调参考信号传输装置的另一种结构示意图；
图11是本申请实施例提供的一种通信设备结构示意图；
图12为实现本申请实施例的一种终端的结构示意图；
图13为实现本申请实施例的一种网络侧设备的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员所获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施，且“第一”、“第二”所区别的对象通常为一类，并不限定对象的个数，例如第一对象可以是一个，也可以是多个。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”一般表示前后关联对象是一种“或”的关系。
值得指出的是，本申请实施例所描述的技术不限于长期演进型(Long Term Evolution，LTE)/LTE的演进(LTE-Advanced，LTE-A)系统，还可用于其他无线通信系统，诸如码分多址(Code Division Multiple Access，CDMA)、时分多址(Time Division Multiple Access，TDMA)、频分多址(Frequency Division Multiple Access，FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access，OFDMA)、单载波频分多址(Single-carrier Frequency Division Multiple Access，SC-FDMA)和其他系统。本申请实施例中的术语“系统”和“网络”常被可互换地使用，所描述的技术既可用于以上提及的系统和无线电技术，也可用于其他系统和无线电技术。以下描述出于示例目的描述了新空口(New Radio，NR)系统，并且在以下大部分描述中使用NR术语，但是这些技术也可应用于NR系统应用以外的应用，如第6代(6th Generation，6G)通信系统。
图1示出本申请实施例可应用的一种无线通信系统的框图。无线通信系统包括终端11和网络侧设备12。其中，终端11可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)或称为笔记本电脑、个人数字助理(Personal Digital Assistant，PDA)、掌上电脑、上网本、超级移动个人计算机(ultra-mobile personal computer，UMPC)、移动上网装置(Mobile Internet Device，MID)、增强现实(augmented reality，AR)/虚拟现实(virtual reality，VR)设备、机器人、可穿戴式设备(Wearable Device)、车载设备(Vehicle User Equipment，VUE)、行人终端(Pedestrian User Equipment，PUE)、智能 家居(具有无线通信功能的家居设备，如冰箱、电视、洗衣机或者家具等)、游戏机、个人计算机(personal computer，PC)、柜员机或者自助机等终端侧设备，可穿戴式设备包括：智能手表、智能手环、智能耳机、智能眼镜、智能首饰(智能手镯、智能手链、智能戒指、智能项链、智能脚镯、智能脚链等)、智能腕带、智能服装等。需要说明的是，在本申请实施例并不限定终端11的具体类型。网络侧设备12可以包括接入网设备或核心网设备，其中，接入网设备12也可以称为无线接入网设备、无线接入网(Radio Access Network,RAN)、无线接入网功能或无线接入网单元。接入网设备12可以包括基站、无线局域网(Wireless Local Area Network，WLAN)接入点或WiFi节点等，基站可被称为节点B、演进节点B(evolved Node B，eNB)、接入点、基收发机站(Base Transceiver Station，BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set，BSS)、扩展服务集(Extended Service Set，ESS)、家用B节点、家用演进型B节点、发送接收点(Transmitting Receiving Point，TRP)或所述领域中其他某个合适的术语，只要达到相同的技术效果，所述基站不限于特定技术词汇，需要说明的是，在本申请实施例中仅以NR系统中的基站为例进行介绍，并不限定基站的具体类型。核心网设备可以包含但不限于如下至少一项：核心网节点、核心网功能、移动管理实体(Mobility Management Entity，MME)、接入移动管理功能(Access and Mobility Management Function，AMF)、会话管理功能(Session Management Function，SMF)、用户平面功能(User Plane Function，UPF)、策略控制功能(Policy Control Function，PCF)、策略与计费规则功能单元(Policy and Charging Rules Function，PCRF)、边缘应用服务发现功能(Edge Application Server Discovery Function，EASDF)、统一数据管理(Unified Data Management，UDM)，统一数据仓储(Unified Data Repository，UDR)、归属用户服务器(Home Subscriber Server，HSS)、集中式网络配置(Centralized network configuration，CNC)、网络存储功能(Network Repository Function，NRF)，网络开放功能(Network Exposure Function，NEF)、本地NEF(Local NEF，或L-NEF)、绑定支持功能(Binding Support Function，BSF)、应用功能(Application Function，AF)等。需要说明的是，在本申请实施例中仅以NR系统中的核心网设备为例进行介绍，并不限定核心网设备的具体类型。
下面结合附图，通过一些实施例及其应用场景对本申请实施例提供的解调参考信号传输方法、装置、终端及网络侧设备进行详细地说明。
如图2所示，本申请实施例提供了一种解调参考信号传输方法，该方法的执行主体为第一通信设备，所述第一通信设备可以为网络侧设备或者终端，换言之，该方法可以由安装在第一通信设备的软件或硬件来执行。所述方法 包括以下步骤。
S210、第一通信设备从第二通信设备接收目标解调参考信号。
其中，所述目标解调参考信号根据N个频分覆盖码序列生成，所述N个频分覆盖码序列以目标长度的子序列为基本单位，并以与所述目标长度的子序列对应的资源映射规则生成，所述频分覆盖码序列用于所述目标解调参考信号的端口的码分复用(Code Division Multiplexing，CDM)，所述N为正整数。
应理解的是，所述第二通信设备可以为网络侧设备或终端。
所述第二通信设备预先配置有多种长度的子序列，所述多种长度的子序列可以根据实际的需要进行设计，例如可以为长度分别为2、4和6等的子序列。
第二通信设备从中所述多种长度的子序列中确定出目标长度的子序列，然后根据与所述目标长度的子序列对应的资源映射规则来生成N个频分覆盖码序列，每个频分覆盖码序列可以分别对应目标DMRS中属于同一码分复用组(CDM group)的M个端口中1个或2个端口(Port)。
所述目标DMRS可以分为第一配置类型和第二配置类型，其中第一配置类型与DMRS配置类型1相关，所述第二配置类型与DMRS配置类型2相关。
S220、所述第一通信设备对所述目标解调参考信号进行信道估计。
所述第一通信设备在接收到所述目标DMRS之后，可以基于预设的解扩规则，对所述目标DMRS进行信道估计。
若仅基于长度为2的频分正交覆盖码来生成DMRS，则每个CDM中仅可能包含最多两个彼此正交的DMRS端口，而通过以目标长度的子序列为基本单位生成的频分覆盖码，再基于频分覆盖码生成DMRS，可以使得每个CDM组中包含更多彼此正交的DMRS端口，从而系统支持的DMRS端口总数增加。
由上述实施例的技术方案可知，本申请实施例通过基于目标长度的子序列为基本单位，并以与所述目标长度的子序列对应的资源映射规则生成N个频分覆盖码序列，根据所述N个频分覆盖码序列生成并发送目标解调参考信号，用于进行信道估计，从而使目标DMRS能够支持更多的端口，提升传输的数据流量。
基于上述实施例，进一步地，所述目标长度的子序列为以下之一：
第一长度的子序列；
第二长度的子序列；
第三长度的子序列；
其中，所述第一长度为2，所述第二长度为4，所述第三长度为6。
以配置有以上三种长度的子序列为例对本申请实施例进行举例说明。
在一种实施方式中，所述第一长度的子序列为以下至少之一：
第一子序列[+1,+1]；
第二子序列[+1,-1]；
第三子序列[-1,-1]；
第四子序列[-1,+1]。
其中，所述第三子序列可以通过第一子序列乘以-1生成，所述第四子序列可以通过第二子序列乘以-1生成。
在一种实施方式中，所述第二长度的子序列为以下至少之一：
第五子序列[+1,+1,+1,+1]；
第六子序列[+1,-1,+1,-1]；
第七子序列[+1,+1,-1,-1]；
第八子序列[+1,-1,-1,+1]。
在一种实施方式中，所述第三长度的子序列为以下至少之一：
第九子序列[+1,+1,+1,+1,+1,+1]；
第十子序列[+1,-1,+1,-1,+1,-1]；
第十一子序列[+1,+1,-1,-1,+1,+1]；
第十二子序列[+1,-1,-1,+1,+1,-1]。
在一种实施方式中，基于上述不同长度的子序列，所述频分覆盖码序列由以下方式之一生成：
以第一长度的子序列为基本单位，将所述第一长度的子序列以第一映射规则的形式映射于所述端口所占的符号上的2个子载波，并且所述2个子载波属于同一个无线承载(Radio Bearer，RB)；
以第二长度的子序列为基本单位，将所述第二长度的子序列以第二映射规则的形式映射于所述端口所占的符号上的4个子载波，并且所述4个子载波属于同一个RB或两个RB；
以第三长度的子序列为基本单位生成，将所述第三长度的子序列以第三映射规则的形式映射于所述端口所占的符号上的6个子载波，并且所述6个子载波属于同一个RB。
在所述第一长度的子序列，即长度为2的子序列为目标长度的子序列的情况下，其对应的第一映射规则具体举例如下：
在一种实施方式中，在以第一子序列为基本单位生成频分覆盖码序列的情况下，所述第一映射规则为将第一子序列依次映射于端口所占的符号上的子载波。
在另一种实施方式中，在以第二子序列为基本单位生成频分覆盖码序列的情况下，所述第一映射规则为将第二子序列依次映射于端口所占符号上的子载波。
在一种实施方式中，在以第一子序列和第三子序列为基本单位生成频分覆盖码序列的情况下，所述第一映射规则为将第一子序列和第三子序列交替映射于端口所占的符号上的子载波。
在另一种实施方式中，在以第二子序列和第四子序列为基本单位生成频分覆盖码序列的情况下，所述第一映射规则为将第二子序列和第四子序列交替映射于端口所占的符号上的子载波。
应用理解的是，所述端口所占的符号可以为正交频分复用(Orthogonal Frequency Division Multiplex，OFDM)符号，也可以为其它符号，此处不作具体地限定。
如图3和图4所示，为第一配置类型单符号结构的一种DMRS图样，包括2个CDM组：CDM组0和CDM组1分别对应不同图案的资源单元，其中，斜线图像的资源单元对应的CDM组0对应端口0和端口1，空白图案的资源单元对应的CDM组1对应端口2和端口3，横线图像的资源单元对应的CDM组0对应端口8和端口9，点状图像的资源对应的CDM组1对应端口10和端口11。
以图3所示的CDM组0为例，以第一子序列[+1,+1]为基本单位映射于DMRS的端口0，以第二子序列[+1,-1]为基本单位映射于端口1，以第一子序列[+1,+1]和第三子序列[-1,-1]为基本单位映射于端口8，以第二子序列[+1,-1]和第四子序列[-1,+1]为基本单位映射于端口9。其中，在端口0上，第一子序列[+1,+1]映射于端口0所占的每2个相邻子载波；在端口1上，第二子序列[+1,-1]映射于端口1所占的每2个相邻子载波；在端口8上，第一子序列[+1,+1]和第三子序列[-1,-1]以第一映射规则的形式交替映射于端口8所占的每2个相邻子载波；在端口9上，第二子序列[+1,-1]和第四子序列[-1,+1]以第一映射规则的形式交替映射于端口9所占的每2个相邻子载波。图3以2个RB为例，其可适用于任意数目的RB。
在一种实施方式中，在以所述第二长度的子序列，即长度为4的子序列为目标长度的子序列的情况下，其对应的第二映射规则可以为分别以第五子序列、第六子序列、第七子序列或第八子序列为基本单位依次映射于端口所占的符号上的子载波。
如图3所示，以CDM组0为例，以第五子序列[+1,+1,+1,+1]为基本单位映射于DMRS的端口0，以第六子序列[+1,-1,+1,-1]为基本单位映射于端口1，以第七子序列[+1,+1,-1,-1]为基本单位映射于端口8，以第八子序列 [+1,-1,-1,+1]为基本单位映射于端口9。其中，上述4个第二长度的子序列以第二映射规则的形式映射于RB0的子载波0、2、4、6；映射于RB0的子载波8、10和RB1的子载波12、14，此时即为以跨RB的形式映射于DMRS所占的资源单元(Resource element，RE)资源；映射于RB 1的子载波16、18、20、22。图3以2个RB为例，其可适用于任意数目的RB。
应理解的是，当RB的数目为奇数时，例如部分带宽(BandWidth Part，BWP)占用的带宽为奇数个RB或者DMRS所占的带宽为奇数个RB时，索引最大的RB中同一个CDM组所对应的索引最大的2个相邻子载波上映射了第一子序列[+1,+1]和第二子序列[+1,-1]，其中第一子序列[+1,+1]等价于第五子序列[+1,+1,+1,+1]和第七子序列[+1,+1,-1,-1]的前两个元素；第二子序列[+1,-1]等价于第六子序列[+1,-1,+1,-1]和第八子序列[+1,-1,-1,+1]的前两个元素。
在一种实施方式中，在以所述第三长度的子序列，即长度为6的子序列为目标长度的子序列的情况下，其对应的第二映射规则可以为分别以第五子序列、第六子序列、第七子序列或第八子序列为基本单位依次映射于端口所占的符号上的子载波。
如图4所示，以CDM组0为例，以第九子序列[+1,+1,+1,+1,+1,+1]为基本单位映射于DMRS的端口0，以第十子序列[+1,-1,+1,-1,+1,-1]为基本单位映射于端口1，以第十一子序列[+1,+1,-1,-1,+1,+1]为基本单位映射于端口8，以第十二子序列[+1,-1,-1,+1,+1,-1]为基本单位映射于端口9。其中，上述4个长度为6的子序列以第三映射规则的形式映射于RB0和RB1的6个子载波上，即RB0的子载波0、2、4、6、8、10和RB1的子载波12、14、16、18、20、22。图3以2个RB为例，其可适用于任意数目的RB。
如图5所示，为第二配置类型单符号结构的一种DMRS图样，包括3个CDM组：CDM组0、CDM组1和CDM组2分别对应不同图案的资源单元，其中，斜线图像的资源单元对应的CDM组0对应端口0和端口1，空白图案的资源单元对应的CDM组1对应端口2和端口3，竖线图案的资源单元对应的CDM组2对应端口4和端口5，横线图像的资源单元对应的CDM组0对应端口12和端口13，交叉图像的资源对应的CDM组1对应端口14和端口15，点状图像的资源对应的CDM组2对应端口16和端口17。
在一种实施方式中，以图5所示的CDM组0为例，以第一子序列[+1,+1]为基本单位映射于DMRS的端口0，以第二子序列[+1,-1]为基本单位映射于端口1，以第一子序列[+1,+1]和第三子序列[-1,-1]为基本单位映射于端口12，以第二子序列[+1,-1]和第四子序列[-1,+1]为基本单位映射于端口13。其中，在端口0上，第一子序列[+1,+1]映射于端口0所占的每2个相邻子载波；在 端口1上，第二子序列[+1,-1]映射于端口1所占的每2个相邻子载波；在端口12上，第一子序列[+1,+1]和第三子序列[-1,-1]以第一映射规则的形式交替映射于端口12所占的每2个相邻子载波；在端口13上，第二子序列[+1,-1]和第四子序列[-1,+1]以第一映射规则的形式交替映射于端口13所占的每2个相邻子载波。图5以1个RB为例，其可适用于任意数目的RB。
在一种实施方式中，以CDM组0为例，以第五子序列[+1,+1,+1,+1]为基本单位映射于DMRS的端口0，以第六子序列[+1,-1,+1,-1]为基本单位映射于端口1，以第七子序列[+1,+1,-1,-1]为基本单位映射于端口12，以第八子序列[+1,-1,-1,+1]为基本单位映射于端口13。其中，在CDM组0中，上述4个第二长度的子序列以第二映射规则的形式映射于RB0的子载波0、1、6、7这4个相邻的子载波；图5以1个RB为例，其可适用于任意数目的RB。
在一种实施方式中，所述频分覆盖码序列以序号为0的公共资源块(Common Resource Block，CRB)的起始子载波作为起始位置生成。
所述起始子载波与CDM组有关，在一种实施方式中，当所述目标DMRS为第一配置类型时，CDM组0对应的频分覆盖码序列以序号为0的公共资源块的第1个子载波作为起始位置生成；CDM组1对应的频分覆盖码序列以序号为0的公共资源块的第2个子载波作为起始位置生成。
在另一种实施方式中，当所述目标DMRS为第二配置类型时，CDM组0对应的频分覆盖码序列以序号为0的公共资源块的第1个子载波作为起始位置生成；CDM组1对应的频分覆盖码序列以序号为0的公共资源块的第3个子载波作为起始位置生成；CDM组2对应的频分覆盖码序列以序号为0的公共资源块的第5个子载波作为起始位置生成。
在一种实施方式中，在以第一长度的子序列或第二长度的子序列为基本单位生成所述频分覆盖码序列的情况下，所述目标解调参考信号为第一配置类型或第二配置类型的解调参考信号；其中，所述第一配置类型与解调参考信号配置类型1相关，所述第二配置类型与解调参考信号配置类型2相关。
在另一种实施方式中，在以第三长度的子序列为基本单位生成所述频分覆盖码序列的情况下，所述目标解调参考信号为第一配置类型；其中，所述第一配置类型与解调参考信号配置类型1相关。
基于本申请实施例提供的长度为2、4、6的子序列，对于单符号的DMRS，对于第一配置类型最多可以支持8个端口，对于第二配置类型最多可以支持12个端口；对于双符号的DMRS，对于第一配置类型最多可以支持16个端口，对于第二配置类型最多可以支持24个端口。与现有的DMRS所支持的端口数相比，提高了一倍。
由上述实施例的技术方案可知，本申请实施例通过设计多种长度的子序 列，并以目标长度的子序列为基本单位映射于端口生成频分覆盖码序列，再生成目标DMRS，从而使目标DMRS能够支持更多的端口，提升传输的数据流量。
基于上述实施例，进一步地，在所述第一通信设备为终端，所述第二通信设备为网络侧设备的情况下，所述方法还包括：
所述终端从所述网络侧设备接收解扩指示信息，所述解扩指示信息用于指示所述终端在进行所述目标解调参考信号的信道估计时对应的解扩窗口信息，所述解扩窗口信息包括解扩窗口长度。
所述解扩窗口长度可以多种多样，本申请实施例中仅以所述解扩窗口长度为2或4为例进行举例说明。
在一种实施方式中，所述步骤S220包括：
所述终端基于所述解扩窗口长度对所述目标解调参考信号进行信道估计。
在一种实施方式中，在所述解扩窗口长度为2的情况下，针对所述目标解调参考信号中属于同一个码分复用组的端口，所述终端以所述端口在符号上所占用的相邻2个子载波为解扩窗口进行联合信道估计。
在另一种实施方式中，在所述解扩窗口长度为4的情况下，针对所述目标解调参考信号中属于同一个码分复用组的端口，所述终端以所述端口在符号上所占用的相邻4个子载波为解扩窗口进行联合信道估计。
如图6所示，为第一配置类型单符号结构的一种DMRS图样，当解扩窗口长度为4时，终端的DMRS信道估计方式如图6所示。以CDM组0上的信道估计为例，在解扩窗口1中基于相邻4个子载波进行一次联合信道估计，在解扩窗口2中基于相邻4个子载波进行一次联合信道估计，即基于一个RB内的两个解扩窗口进行信道估计。
如图7所示，为第二配置类型单符号结构的一种DMRS图样，当解扩窗口长度为4时，终端设备的DMRS信道估计方式如6所示。以CDM组0上的信道估计为例，在解扩窗口1中基于CDM组0对应的相邻4个子载波进行一次联合信道估计。
由于解扩窗口内的频分覆盖码彼此正交，从而属于同一个CDM组的4个DMRS端口彼此正交，以保证信道估计性能。
由此可见，通过以目标长度的子序列为基本单位生成的频分覆盖码，可以使得更多的DMRS端口之间实现码分复用，从而使得一个CDM组中包含更多彼此正交的DMRS端口。
在一种实施方式中，在所述终端从所述网络侧设备接收解扩指示信息之前，所述方法还包括：
所述终端向所述网络侧设备上报所述终端的信道估计能力。
在一种实施方式中，所述信道估计能力用于指示所述终端是否支持基于解扩窗口长度为4进行解调参考信号信道估计。
由上述实施例的技术方案可知，本申请实施例通过向终端发送解扩指示信息，使终端根据解扩窗口长度对DMRS进行信道估计，从而使目标DMRS的信道估计更加准确。
在一种实施方式中，在所述第一通信设备为终端，所述第二通信设备为网络侧设备的情况下，在所述终端从所述网络侧设备接收目标解调参考信号之前，所述方法还包括：
所述终端向所述网络侧设备上报所述终端支持的下行数据接收能力，所述下行数据接收能力包括所述终端支持的物理下行共享信道(Physical Downlink Shared Channel,PDSCH)的RB数目类型的能力。
在一种实施方式中，所述PDSCH的RB数目类型包括以下一种：
所述PDSCH的RB数目为偶数；
所述PDSCH的RB数目为奇数或者偶数，即对所述PDSCH的RB数目的奇偶性没有限制。
在一种实施方式中，所述终端接收从所述网络侧设备接收目标配置信息，所述目标配置信息对应所述终端上报的下行数据接收能力，所述目标配置信息用于指示所述终端接收的PDSCH的RB数目类型。
例如，当所述终端上报其仅支持的PDSCH的RB数目为偶数时，所述网络侧设备可以发送目标配置信息来指示所述终端后续传输的PDSCH的RB数目将均为偶数，此时所述终端可以采用相应的信道估计方法进行所述PDSCH的解调。或者，当所述终端上报其支持的PDSCH的RB数目可以为奇数或偶数时，所述网络侧设备可以发送目标配置信息来指示所述终端后续传输的PDSCH的RB数目将均为偶数或者没有限制(即RB数目可能是偶数也可能是奇数)，此时所述终端可以根据所述目标配置信息以采用相应的信道估计方法来进行所述PDSCH的解调。
当PDSCH的RB数目为奇数时，终端可以基于一个RB内的两个解扩窗口进行信道估计，从而解决PDSCH的RB数目为奇数时的信道估计问题。也就是说，若终端支持基于一个RB内的两个解扩窗口进行信道估计，则终端可以支持其接收的PDSCH的RB数目为奇数。需要说明的是，基于一个RB内的两个解扩窗口进行信道估计只是终端进行信道估计的方法之一，不排除其他可以使得终端支持接收RB数目为奇数的PDSCH的信道估计方法。
由上述实施例的技术方案可知，本申请实施例通过终端上报的下行数据接收能力来确定PDSCH的RB数目类型，从而提升信道估计的性能。
本申请实施例提供的解调参考信号传输方法，执行主体可以为解调参考 信号传输装置。本申请实施例中以解调参考信号传输装置执行解调参考信号传输方法为例，说明本申请实施例提供的解调参考信号传输装置。
如图8所示，所述解调参考信号传输装置包括：收发模块701和计算模块702。
所述收发模块701用于从第二通信设备收目标解调参考信号；所述计算模块702用于对所述目标解调参考信号进行信道估计；其中，所述目标解调参考信号根据N个频分覆盖码序列生成，所述N个频分覆盖码序列以目标长度的子序列为基本单位，并以与所述目标长度的子序列对应的资源映射规则生成，所述频分覆盖码序列用于所述目标解调参考信号的端口的码分复用，所述N为正整数。
由上述实施例的技术方案可知，本申请实施例通过基于目标长度的子序列为基本单位，并以与所述目标长度的子序列对应的资源映射规则生成N个频分覆盖码序列，根据所述N个频分覆盖码序列生成并发送目标解调参考信号，用于进行信道估计，从而使目标DMRS能够支持更多的端口，提升传输的数据流量。
基于上述实施例，进一步地，所述目标长度的子序列为以下之一：
第一长度的子序列；
第二长度的子序列；
第三长度的子序列；
其中，所述第一长度为2，所述第二长度为4，所述第三长度为6。
进一步地，所述频分覆盖码序列由以下方式之一生成：
以第一长度的子序列为基本单位，将所述第一长度的子序列以第一映射规则的形式映射于所述端口所占的符号上的2个子载波，并且所述2个子载波属于同一个RB；
以第二长度的子序列为基本单位，将所述第二长度的子序列以第二映射规则的形式映射于所述端口所占的符号上的4个子载波，并且所述4个子载波属于同一个RB或两个RB；
以第三长度的子序列为基本单位生成，将所述第三长度的子序列以第三映射规则的形式映射于所述端口所占的符号上的6个子载波，并且所述6个子载波属于同一个RB。
进一步地，所述第一长度的子序列为以下至少之一：
第一子序列[+1,+1]；
第二子序列[+1,-1]；
第三子序列[-1,-1]；
第四子序列[-1,+1]。
进一步地，所述第二长度的子序列为以下至少之一：
第五子序列[+1,+1,+1,+1]；
第六子序列[+1,-1,+1,-1]；
第七子序列[+1,+1,-1,-1]；
第八子序列[+1,-1,-1,+1]。
进一步地，所述第三长度的子序列为以下至少之一：
第九子序列[+1,+1,+1,+1,+1,+1]；
第十子序列[+1,-1,+1,-1,+1,-1]；
第十一子序列[+1,+1,-1,-1,+1,+1]；
第十二子序列[+1,-1,-1,+1,+1,-1]。
进一步地，在以所述第一子序列和所述第三子序列为基本单位生成所述频分覆盖码序列的情况下，所述第一映射规则为将所述第一子序列和所述第三子序列交替映射于端口所占的符号上的子载波。
进一步地，在以所述第二子序列和所述第四子序列为基本单位生成所述频分覆盖码序列的情况下，所述第一映射规则为将所述第二子序列和所述第四子序列交替映射于端口所占的符号上的子载波。
进一步地，所述频分覆盖码序列以序号为0的公共资源块的起始子载波作为起始位置生成。
进一步地，在以第一长度的子序列或第二长度的子序列为基本单位生成所述频分覆盖码序列的情况下，所述目标解调参考信号为第一配置类型或第二配置类型的解调参考信号；其中，所述第一配置类型与解调参考信号配置类型1相关，所述第二配置类型与解调参考信号配置类型2相关。
进一步地，在以第三长度的子序列为基本单位生成所述频分覆盖码序列的情况下，所述目标解调参考信号为第一配置类型；其中，所述第一配置类型与解调参考信号配置类型1相关。
由上述实施例的技术方案可知，本申请实施例通过设计多种长度的子序列，并以目标长度的子序列为基本单位映射于端口生成频分覆盖码序列，再生成目标DMRS，从而使目标DMRS能够支持更多的端口，提升传输的数据流量。
基于上述实施例，进一步地，在所述第一通信设备为终端，所述第二通信设备为网络侧设备的情况下，收发模块701还用于：
从所述网络侧设备接收解扩指示信息，所述解扩指示信息用于指示所述终端在进行所述目标解调参考信号的信道估计时对应的解扩窗口信息，所述解扩窗口信息包括解扩窗口长度。
进一步地，计算模块702用于基于所述解扩窗口长度对所述目标解调参 考信号进行信道估计。
进一步地，所述解扩窗口长度为2或4。
进一步地，所述计算模块702用于执行以下至少一种：
在所述解扩窗口长度为2的情况下，针对所述目标解调参考信号中属于同一个码分复用组的端口，以所述端口在符号上所占用的相邻2个子载波为解扩窗口进行联合信道估计；
在所述解扩窗口长度为4的情况下，针对所述目标解调参考信号中属于同一个码分复用组的端口，以所述端口在符号上所占用的相邻4个子载波为解扩窗口进行联合信道估计。
进一步地，在从所述网络侧设备接收解扩指示信息之前，收发模块701还用于向所述网络侧设备上报所述终端的信道估计能力。
进一步地，所述信道估计能力用于指示所述终端是否支持基于解扩窗口长度为4进行解调参考信号信道估计。
由上述实施例的技术方案可知，本申请实施例通过向终端发送解扩指示信息，使终端根据解扩窗口长度对DMRS进行信道估计，从而使目标DMRS的信道估计更加准确。
基于上述实施例，进一步地，在所述第一通信设备为终端，所述第二通信设备为网络侧设备的情况下，在从所述网络侧设备接收目标解调参考信号之前，收发模块701还用于向所述网络侧设备上报所述终端支持的下行数据接收能力，所述下行数据接收能力包括所述终端支持的PDSCH的RB数目类型的能力。
进一步地，所述PDSCH的RB数目类型包括以下一种：
所述PDSCH的RB数目为偶数；
所述PDSCH的RB数目为奇数或者偶数。
进一步地，收发模块701还用于从所述网络侧设备接收目标配置信息，所述目标配置信息对应所述终端上报的下行数据接收能力，所述目标配置信息用于指示所述终端接收的PDSCH的RB数目类型。
由上述实施例的技术方案可知，本申请实施例通过终端上报的下行数据接收能力来确定PDSCH的RB数目类型，从而提升信道估计的性能。
本申请实施例中的解调参考信号传输装置可以是电子设备，例如具有操作系统的电子设备，也可以是电子设备中的部件，例如集成电路或芯片。该电子设备可以是终端，也可以为除终端之外的其他设备。示例性的，终端可以包括但不限于上述所列举的终端11的类型，其他设备可以为服务器、网络附属存储器(Network Attached Storage，NAS)等，本申请实施例不作具体限定。
本申请实施例提供的解调参考信号传输装置能够实现图2至图7的方法实施例实现的各个过程，并达到相同的技术效果，为避免重复，这里不再赘述。
如图9所示，本申请实施例提供了一种解调参考信号传输方法，该方法的执行主体为第二通信设备，所述第二通信设备可以为网络侧设备或者终端，换言之，该方法可以由安装在第二通信设备的软件或硬件来执行。所述方法包括以下步骤。
S810、第二通信设备以目标长度的子序列为基本单位，并以与所述目标长度的子序列对应的资源映射规则生成N个频分覆盖码序列，所述频分覆盖码序列用于目标解调参考信号解调参考信号的端口的码分复用；
S820、所述第二通信设备根据所述N个频分覆盖码序列生成并向第一通信设备发送目标解调参考信号；
其中，所述N为正整数。
步骤S810-S820可以实现如图2所示的方法实施例，并得到相同的技术效果，重复部分此处不再赘述。
由上述实施例的技术方案可知，本申请实施例通过基于目标长度的子序列为基本单位，并以与所述目标长度的子序列对应的资源映射规则生成N个频分覆盖码序列，根据所述N个频分覆盖码序列生成并发送目标解调参考信号，用于进行信道估计，从而使目标DMRS能够支持更多的端口，提升传输的数据流量。
基于上述实施例，进一步地，所述目标长度的子序列为以下之一：
第一长度的子序列；
第二长度的子序列；
第三长度的子序列；
其中，所述第一长度为2，所述第二长度为4，所述第三长度为6。
进一步地，步骤S810包括以下方式之一：
以第一长度的子序列为基本单位，将所述第一长度的子序列以第一映射规则的形式映射于所述端口所占的符号上的2个子载波，并且所述2个子载波属于同一个RB；
以第二长度的子序列为基本单位，将所述第二长度的子序列以第二映射规则的形式映射于所述端口所占的符号上的4个子载波，并且所述4个子载波属于同一个RB或两个RB；
以第三长度的子序列为基本单位生成，将所述第三长度的子序列以第三映射规则的形式映射于所述端口所占的符号上的6个子载波，并且所述6个子载波属于同一个RB。
进一步地，所述第一长度的子序列为以下至少之一：
第一子序列[+1,+1]；
第二子序列[+1,-1]；
第三子序列[-1,-1]；
第四子序列[-1,+1]。
进一步地，所述第二长度的子序列为以下至少之一：
第五子序列[+1,+1,+1,+1]；
第六子序列[+1,-1,+1,-1]；
第七子序列[+1,+1,-1,-1]；
第八子序列[+1,-1,-1,+1]。
进一步地，所述第三长度的子序列为以下至少之一：
第九子序列[+1,+1,+1,+1,+1,+1]；
第十子序列[+1,-1,+1,-1,+1,-1]；
第十一子序列[+1,+1,-1,-1,+1,+1]；
第十二子序列[+1,-1,-1,+1,+1,-1]。
进一步地，在以第一子序列和第三子序列为基本单位生成频分覆盖码序列的情况下，所述第一映射规则为将第一子序列和第三子序列交替映射于端口所占的符号上的子载波。
进一步地，在以第二子序列和第四子序列为基本单位生成频分覆盖码序列的情况下，所述第一映射规则为将第二子序列和第四子序列交替映射于端口所占的符号上的子载波。
进一步地，所述频分覆盖码序列以序号为0的公共资源块的起始子载波作为起始位置生成。
进一步地，在以第一长度的子序列或第二长度的子序列为基本单位生成所述频分覆盖码序列的情况下，所述目标解调参考信号为第一配置类型或第二配置类型的解调参考信号；其中，所述第一配置类型与解调参考信号配置类型1相关，所述第二配置类型与解调参考信号配置类型2相关。
进一步地，在以第三长度的子序列为基本单位生成所述频分覆盖码序列的情况下，所述解调参考信号为第一配置类型；其中，所述第一配置类型与解调参考信号配置类型1相关。
由上述实施例的技术方案可知，本申请实施例通过设计多种长度的子序列，并以目标长度的子序列为基本单位映射于端口生成频分覆盖码序列，再生成目标DMRS，从而使目标DMRS能够支持更多的端口，提升传输的数据流量。
基于上述实施例，进一步地，在所述第一通信设备为终端，所述第二通 信设备为网络侧设备的情况下，所述方法还包括：
所述网络侧设备向所述终端发送解扩指示信息，所述解扩指示信息用于指示所述终端在进行所述目标解调参考信号的信道估计时对应的解扩窗口信息，所述解扩窗口信息包括解扩窗口长度。
进一步地，所述解扩窗口长度为2或4。
进一步地，在所述网络侧设备向所述终端发送解扩指示信息之前，所述方法还包括：
所述网络侧设备从所述终端接收所述终端的信道估计能力。
进一步地，所述信道估计能力用于指示所述终端是否支持基于解扩窗口长度为4进行解调参考信号信道估计。
由上述实施例的技术方案可知，本申请实施例通过向终端发送解扩指示信息，使终端根据解扩窗口长度对DMRS进行信道估计，从而使目标DMRS的信道估计更加准确。
基于上述实施例，进一步地，在所述第一通信设备为终端，所述第二通信设备为网络侧设备的情况下，在所述网络侧设备向所述终端发送目标解调参考信号之前，所述方法还包括：
所述网络侧设备从所述终端接收所述终端支持的下行数据接收能力，所述下行数据接收能力包括所述终端支持的PDSCH的RB数目类型的能力。
进一步地，所述PDSCH的RB数目类型包括以下一种：
所述PDSCH的RB数目为偶数；
所述PDSCH的RB数目为奇数或者偶数。
进一步地，所述网络侧设备向所述终端发送目标配置信息，所述目标配置信息对应所述网络侧设备从所述终端接收的所述终端支持的下行数据接收能力，所述目标配置信息用于指示所述终端接收的PDSCH的RB数目类型。
本申请实施例提供的解调参考信号传输方法，执行主体可以为解调参考信号传输装置。本申请实施例中以解调参考信号传输装置执行解调参考信号传输方法为例，说明本申请实施例提供的解调参考信号传输装置。
如图10所示，所述解调参考信号传输装置包括：生成模块901和传输模块902。
所述生成模块901用于以目标长度的子序列为基本单位，并以与所述目标长度的子序列对应的资源映射规则生成N个频分覆盖码序列，所述频分覆盖码序列用于目标解调参考信号解调参考信号的端口的码分复用；所述传输模块902用于根据所述N个频分覆盖码序列生成并向第一通信设备发送目标解调参考信号；其中，所述N为正整数。
由上述实施例的技术方案可知，本申请实施例通过基于目标长度的子序 列为基本单位，并以与所述目标长度的子序列对应的资源映射规则生成N个频分覆盖码序列，根据所述N个频分覆盖码序列生成并发送目标解调参考信号，用于进行信道估计，从而使目标DMRS能够支持更多的端口，提升传输的数据流量。
基于上述实施例，进一步地，所述目标长度的子序列为以下之一：
第一长度的子序列；
第二长度的子序列；
第三长度的子序列；
其中，所述第一长度为2，所述第二长度为4，所述第三长度为6。
进一步地，生成模块901用于执行以下方式之一：
以第一长度的子序列为基本单位，将所述第一长度的子序列以第一映射规则的形式映射于所述端口所占的符号上的2个子载波，并且所述2个子载波属于同一个RB；
以第二长度的子序列为基本单位，将所述第二长度的子序列以第二映射规则的形式映射于所述端口所占的符号上的4个子载波，并且所述4个子载波属于同一个RB或两个RB；
以第三长度的子序列为基本单位生成，将所述第三长度的子序列以第三映射规则的形式映射于所述端口所占的符号上的6个子载波，并且所述6个子载波属于同一个RB。
进一步地，所述第一长度的子序列为以下至少之一：
第一子序列[+1,+1]；
第二子序列[+1,-1]；
第三子序列[-1,-1]；
第四子序列[-1,+1]。
进一步地，所述第二长度的子序列为以下至少之一：
第五子序列[+1,+1,+1,+1]；
第六子序列[+1,-1,+1,-1]；
第七子序列[+1,+1,-1,-1]；
第八子序列[+1,-1,-1,+1]。
进一步地，所述第三长度的子序列为以下至少之一：
第九子序列[+1,+1,+1,+1,+1,+1]；
第十子序列[+1,-1,+1,-1,+1,-1]；
第十一子序列[+1,+1,-1,-1,+1,+1]；
第十二子序列[+1,-1,-1,+1,+1,-1]。
进一步地，在以第一子序列和第三子序列为基本单位生成频分覆盖码序 列的情况下，所述第一映射规则为将第一子序列和第三子序列交替映射于端口所占的符号上的子载波。
进一步地，在以第二子序列和第四子序列为基本单位生成频分覆盖码序列的情况下，所述第一映射规则为将第二子序列和第四子序列交替映射于端口所占的符号上的子载波。
进一步地，所述频分覆盖码序列以序号为0的公共资源块的起始子载波作为起始位置生成。
进一步地，在以第一长度的子序列或第二长度的子序列为基本单位生成所述频分覆盖码序列的情况下，所述目标解调参考信号为第一配置类型或第二配置类型的解调参考信号；其中，所述第一配置类型与解调参考信号配置类型1相关，所述第二配置类型与解调参考信号配置类型2相关。
进一步地，在以第三长度的子序列为基本单位生成所述频分覆盖码序列的情况下，所述解调参考信号为第一配置类型；其中，所述第一配置类型与解调参考信号配置类型1相关。
由上述实施例的技术方案可知，本申请实施例通过设计多种长度的子序列，并以目标长度的子序列为基本单位映射于端口生成频分覆盖码序列，再生成目标DMRS，从而使目标DMRS能够支持更多的端口，提升传输的数据流量。
基于上述实施例，进一步地，在所述第一通信设备为终端，所述第二通信设备为网络侧设备的情况下，所述传输模块902还用于向所述终端发送解扩指示信息，所述解扩指示信息用于指示所述终端在进行所述目标解调参考信号的信道估计时对应的解扩窗口信息，所述解扩窗口信息包括解扩窗口长度。
进一步地，所述解扩窗口长度为2或4。
进一步地，所述传输模块902还用于从所述终端接收所述终端的信道估计能力。
进一步地，所述信道估计能力用于指示所述终端是否支持基于解扩窗口长度为4进行解调参考信号信道估计。
由上述实施例的技术方案可知，本申请实施例通过向终端发送解扩指示信息，使终端根据解扩窗口长度对DMRS进行信道估计，从而使目标DMRS的信道估计更加准确。
基于上述实施例，进一步地，在所述第一通信设备为终端，所述第二通信设备为网络侧设备的情况下，所述传输模块902还用于从所述终端接收所述终端支持的下行数据接收能力，所述下行数据接收能力包括所述终端支持的物理下行共享信道PDSCH的RB数目类型的能力。
进一步地，所述PDSCH的RB数目类型包括以下一种：
所述PDSCH的RB数目为偶数；
所述PDSCH的RB数目为奇数或者偶数。
进一步地，所述传输模块902还用于向所述终端发送目标配置信息，所述目标配置信息对应所述网络侧设备从所述终端接收的所述终端支持的下行数据接收能力，所述目标配置信息用于指示所述终端接收的PDSCH的RB数目类型。
本申请实施例中的解调参考信号传输装置可以是电子设备，例如具有操作系统的电子设备，也可以是电子设备中的部件，例如集成电路或芯片。该电子设备可以是终端，也可以为除终端之外的其他设备。示例性的，终端可以包括但不限于上述所列举的终端11的类型，其他设备可以为服务器、网络附属存储器(Network Attached Storage，NAS)等，本申请实施例不作具体限定。
本申请实施例提供的解调参考信号传输装置能够实现图9的方法实施例实现的各个过程，并达到相同的技术效果，为避免重复，这里不再赘述。
可选的，如图11所示，本申请实施例还提供一种通信设备1000，包括处理器1001和存储器1002，存储器1002上存储有可在所述处理器1001上运行的程序或指令，例如，该通信设备1000为终端时，该程序或指令被处理器1001执行时实现上述解调参考信号传输方法实施例的各个步骤，且能达到相同的技术效果。该通信设备1000为网络侧设备时，该程序或指令被处理器1001执行时实现上述解调参考信号传输方法实施例的各个步骤，且能达到相同的技术效果，为避免重复，这里不再赘述。
本申请实施例还提供一种终端，包括处理器和通信接口，处理器用于对所述目标解调参考信号进行信道估计，通信接口用于从第二通信设备接收目标解调参考信号。该终端实施例与上述终端侧方法实施例对应，上述方法实施例的各个实施过程和实现方式均可适用于该终端实施例中，且能达到相同的技术效果。具体地，图12为实现本申请实施例的一种终端的硬件结构示意图。
该终端1100包括但不限于：射频单元1101、网络模块1102、音频输出单元1103、输入单元1104、传感器1105、显示单元1106、用户输入单元1107、接口单元1108、存储器1109以及处理器1110等中的至少部分部件。
本领域技术人员可以理解，终端1100还可以包括给各个部件供电的电源(比如电池)，电源可以通过电源管理系统与处理器1110逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。图12中示出的终端结构并不构成对终端的限定，终端可以包括比图示更多或更少的部件， 或者组合某些部件，或者不同的部件布置，在此不再赘述。
应理解的是，本申请实施例中，输入单元1104可以包括图形处理单元(Graphics Processing Unit，GPU)11041和麦克风11042，GPU11041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元1106可包括显示面板11061，可以采用液晶显示器、有机发光二极管等形式来配置显示面板11061。用户输入单元1107包括触控面板11071以及其他输入设备11072中的至少一种。触控面板11071，也称为触摸屏。触控面板11071可包括触摸检测装置和触摸控制器两个部分。其他输入设备11072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆，在此不再赘述。
本申请实施例中，射频单元1101接收来自网络侧设备的下行数据后，可以传输给处理器1110进行处理；另外，射频单元1101可以向网络侧设备发送上行数据。通常，射频单元1101包括但不限于天线、放大器、收发信机、耦合器、低噪声放大器、双工器等。
存储器1109可用于存储软件程序或指令以及各种数据。存储器1109可主要包括存储程序或指令的第一存储区和存储数据的第二存储区，其中，第一存储区可存储操作系统、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外，存储器1109可以包括易失性存储器或非易失性存储器，或者，存储器1109可以包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory，RAM)，静态随机存取存储器(Static RAM，SRAM)、动态随机存取存储器(Dynamic RAM，DRAM)、同步动态随机存取存储器(Synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM，DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(Synch link DRAM，SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM，DRRAM)。本申请实施例中的存储器1109包括但不限于这些和任意其它适合类型的存储器。
处理器1110可包括一个或多个处理单元；可选的，处理器1110集成应用处理器和调制解调处理器，其中，应用处理器主要处理涉及操作系统、用户界面和应用程序等的操作，调制解调处理器主要处理无线通信信号，如基带处理器。可以理解的是，上述调制解调处理器也可以不集成到处理器1110中。
其中，射频单元1101，用于从第二通信设备接收目标解调参考信号；
处理器1110，用于对所述目标解调参考信号进行信道估计；
其中，所述目标解调参考信号根据N个频分覆盖码序列生成，所述N个频分覆盖码序列以目标长度的子序列为基本单位，并以与所述目标长度的子序列对应的资源映射规则生成，所述频分覆盖码序列用于所述目标解调参考信号的端口的码分复用，所述N为正整数。
由上述实施例的技术方案可知，本申请实施例通过基于目标长度的子序列为基本单位，并以与所述目标长度的子序列对应的资源映射规则生成N个频分覆盖码序列，根据所述N个频分覆盖码序列生成并发送目标解调参考信号，用于进行信道估计，从而使目标DMRS能够支持更多的端口，提升传输的数据流量。
基于上述实施例，进一步地，所述目标长度的子序列为以下之一：
第一长度的子序列；
第二长度的子序列；
第三长度的子序列；
其中，所述第一长度为2，所述第二长度为4，所述第三长度为6。
进一步地，所述频分覆盖码序列由以下方式之一生成：
以第一长度的子序列为基本单位，将所述第一长度的子序列以第一映射规则的形式映射于所述端口所占的符号上的2个子载波，并且所述2个子载波属于同一个RB；
以第二长度的子序列为基本单位，将所述第二长度的子序列以第二映射规则的形式映射于所述端口所占的符号上的4个子载波，并且所述4个子载波属于同一个RB或两个RB；
以第三长度的子序列为基本单位生成，将所述第三长度的子序列以第三映射规则的形式映射于所述端口所占的符号上的6个子载波，并且所述6个子载波属于同一个RB。
进一步地，所述第一长度的子序列为以下至少之一：
第一子序列[+1,+1]；
第二子序列[+1,-1]；
第三子序列[-1,-1]；
第四子序列[-1,+1]。
进一步地，所述第二长度的子序列为以下至少之一：
第五子序列[+1,+1,+1,+1]；
第六子序列[+1,-1,+1,-1]；
第七子序列[+1,+1,-1,-1]；
第八子序列[+1,-1,-1,+1]。
进一步地，所述第三长度的子序列为以下至少之一：
第九子序列[+1,+1,+1,+1,+1,+1]；
第十子序列[+1,-1,+1,-1,+1,-1]；
第十一子序列[+1,+1,-1,-1,+1,+1]；
第十二子序列[+1,-1,-1,+1,+1,-1]。
进一步地，在以所述第一子序列和所述第三子序列为基本单位生成所述频分覆盖码序列的情况下，所述第一映射规则为将所述第一子序列和所述第三子序列交替映射于端口所占的符号上的子载波。
进一步地，在以所述第二子序列和所述第四子序列为基本单位生成所述频分覆盖码序列的情况下，所述第一映射规则为将所述第二子序列和所述第四子序列交替映射于端口所占的符号上的子载波。
进一步地，所述频分覆盖码序列以序号为0的公共资源块的起始子载波作为起始位置生成。
进一步地，在以第一长度的子序列或第二长度的子序列为基本单位生成所述频分覆盖码序列的情况下，所述目标解调参考信号为第一配置类型或第二配置类型的解调参考信号；其中，所述第一配置类型与解调参考信号配置类型1相关，所述第二配置类型与解调参考信号配置类型2相关。
进一步地，在以第三长度的子序列为基本单位生成所述频分覆盖码序列的情况下，所述目标解调参考信号为第一配置类型；其中，所述第一配置类型与解调参考信号配置类型1相关。
本申请实施例使目标DMRS能够支持更多的端口，提升传输的数据流量。
基于上述实施例，进一步地，在所述第一通信设备为终端，所述第二通信设备为网络侧设备的情况下，所述射频单元1101还用于：
从所述网络侧设备接收解扩指示信息，所述解扩指示信息用于指示所述终端在进行所述目标解调参考信号的信道估计时对应的解扩窗口信息，所述解扩窗口信息包括解扩窗口长度。
进一步地，处理器1110用于基于所述解扩窗口长度对所述目标解调参考信号进行信道估计。
进一步地，所述解扩窗口长度为2或4。
进一步地，所述处理器1110用于执行以下至少一种：
在所述解扩窗口长度为2的情况下，针对所述目标解调参考信号中属于同一个码分复用组的端口，以所述端口在符号上所占用的相邻2个子载波为解扩窗口进行联合信道估计；
在所述解扩窗口长度为4的情况下，针对所述目标解调参考信号中属于 同一个码分复用组的端口，以所述端口在符号上所占用的相邻4个子载波为解扩窗口进行联合信道估计。
进一步地，在所述终端从所述网络侧设备接收解扩指示信息之前，所述射频单元1101还用于向所述网络侧设备上报所述终端的信道估计能力。
进一步地，所述信道估计能力用于指示所述终端是否支持基于解扩窗口长度为4进行解调参考信号信道估计。
基于上述实施例，进一步地，在所述第一通信设备为终端，所述第二通信设备为网络侧设备的情况下，在所述终端从所述网络侧设备接收目标解调参考信号之前，所述射频单元1101还用于向所述网络侧设备上报所述终端支持的下行数据接收能力，所述下行数据接收能力包括所述终端支持的物理下行共享信道PDSCH的RB数目类型的能力。
进一步地，所述PDSCH的RB数目类型包括以下一种：
所述PDSCH的RB数目为偶数；
所述PDSCH的RB数目为奇数或者偶数。
进一步地，所述射频单元1101还用于从所述网络侧设备接收目标配置信息，所述目标配置信息对应所述终端上报的下行数据接收能力，所述目标配置信息用于指示所述终端接收的PDSCH的RB数目类型。
本申请实施例使目标DMRS的信道估计更加准确。
本申请实施例还提供一种网络侧设备，包括处理器和通信接口，处理器用于以目标长度的子序列为基本单位，并以与所述目标长度的子序列对应的资源映射规则生成N个频分覆盖码序列，所述频分覆盖码序列用于目标解调参考信号解调参考信号的端口的码分复用，通信接口用于根据所述N个频分覆盖码序列生成并向第一通信设备发送目标解调参考信号。该网络侧设备实施例与上述网络侧设备方法实施例对应，上述方法实施例的各个实施过程和实现方式均可适用于该网络侧设备实施例中，且能达到相同的技术效果。
具体地，本申请实施例还提供了一种网络侧设备。如图13所示，该网络侧设备1200包括：天线121、射频装置122、基带装置123、处理器124和存储器125。天线121与射频装置122连接。在上行方向上，射频装置122通过天线121接收信息，将接收的信息发送给基带装置123进行处理。在下行方向上，基带装置123对要发送的信息进行处理，并发送给射频装置122，射频装置122对收到的信息进行处理后经过天线121发送出去。
以上实施例中网络侧设备执行的方法可以在基带装置123中实现，该基带装置123包括基带处理器。
基带装置123例如可以包括至少一个基带板，该基带板上设置有多个芯片，如图13所示，其中一个芯片例如为基带处理器，通过总线接口与存储器 125连接，以调用存储器125中的程序，执行以上方法实施例中所示的网络设备操作。
该网络侧设备还可以包括网络接口126，该接口例如为通用公共无线接口(common public radio interface，CPRI)。
具体地，本发明实施例的网络侧设备1200还包括：存储在存储器125上并可在处理器124上运行的指令或程序，处理器124调用存储器125中的指令或程序执行图7所示各模块执行的方法，并达到相同的技术效果，为避免重复，故不在此赘述。
本申请实施例还提供一种可读存储介质，所述可读存储介质上存储有程序或指令，该程序或指令被处理器执行时实现上述解调参考信号传输方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
其中，所述处理器为上述实施例中所述的终端中的处理器。所述可读存储介质，包括计算机可读存储介质，如计算机只读存储器ROM、随机存取存储器RAM、磁碟或者光盘等。
本申请实施例另提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现上述解调参考信号传输方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
应理解，本申请实施例提到的芯片还可以称为系统级芯片，系统芯片，芯片系统或片上系统芯片等。
本申请实施例另提供了一种计算机程序/程序产品，所述计算机程序/程序产品被存储在存储介质中，所述计算机程序/程序产品被至少一个处理器执行以实现上述解调参考信号传输方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
本申请实施例还提供了一种解调参考信号传输系统，包括：终端及网络侧设备，所述终端可用于执行如上所述的解调参考信号传输方法的步骤，所述网络侧设备可用于执行如上所述的解调参考信号传输方法的步骤。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外，需要指出的是，本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能，还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能，例 如，可以按不同于所描述的次序来执行所描述的方法，并且还可以添加、省去、或组合各种步骤。另外，参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以计算机软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。

Claims (43)

  1. 一种解调参考信号传输方法，其中，包括：
    第一通信设备从第二通信设备接收目标解调参考信号；
    所述第一通信设备对所述目标解调参考信号进行信道估计；
    其中，所述目标解调参考信号根据N个频分覆盖码序列生成，所述N个频分覆盖码序列以目标长度的子序列为基本单位，并以与所述目标长度的子序列对应的资源映射规则生成，所述频分覆盖码序列用于所述目标解调参考信号的端口的码分复用，所述N为正整数。
  2. 根据权利要求1所述的方法，其中，所述目标长度的子序列为以下之一：
    第一长度的子序列；
    第二长度的子序列；
    第三长度的子序列；
    其中，所述第一长度为2，所述第二长度为4，所述第三长度为6。
  3. 根据权利要求2所述的方法，其中，所述频分覆盖码序列由以下方式之一生成：
    以第一长度的子序列为基本单位，将所述第一长度的子序列以第一映射规则的形式映射于所述端口所占的符号上的2个子载波，并且所述2个子载波属于同一个RB；
    以第二长度的子序列为基本单位，将所述第二长度的子序列以第二映射规则的形式映射于所述端口所占的符号上的4个子载波，并且所述4个子载波属于同一个RB或两个RB；
    以第三长度的子序列为基本单位生成，将所述第三长度的子序列以第三映射规则的形式映射于所述端口所占的符号上的6个子载波，并且所述6个子载波属于同一个RB。
  4. 根据权利要求2或3所述的方法，其中，所述第一长度的子序列为以下至少之一：
    第一子序列[+1,+1]；
    第二子序列[+1,-1]；
    第三子序列[-1,-1]；
    第四子序列[-1,+1]。
  5. 根据权利要求2或3所述的方法，其中，所述第二长度的子序列为以下至少之一：
    第五子序列[+1,+1,+1,+1]；
    第六子序列[+1,-1,+1,-1]；
    第七子序列[+1,+1,-1,-1]；
    第八子序列[+1,-1,-1,+1]。
  6. 根据权利要求2或3所述的方法，其中，所述第三长度的子序列为以下至少之一：
    第九子序列[+1,+1,+1,+1,+1,+1]；
    第十子序列[+1,-1,+1,-1,+1,-1]；
    第十一子序列[+1,+1,-1,-1,+1,+1]；
    第十二子序列[+1,-1,-1,+1,+1,-1]。
  7. 根据权利要求4所述的方法，其中，在以所述第一子序列和所述第三子序列为基本单位生成所述频分覆盖码序列的情况下，所述第一映射规则为将所述第一子序列和所述第三子序列交替映射于端口所占的符号上的子载波。
  8. 根据权利要求4所述的方法，其中，在以所述第二子序列和所述第四子序列为基本单位生成所述频分覆盖码序列的情况下，所述第一映射规则为将所述第二子序列和所述第四子序列交替映射于端口所占的符号上的子载波。
  9. 根据权利要求1所述的方法，其中，所述频分覆盖码序列以序号为0的公共资源块的起始子载波作为起始位置生成。
  10. 根据权利要求2所述的方法，其中，在以第一长度的子序列或第二长度的子序列为基本单位生成所述频分覆盖码序列的情况下，所述目标解调参考信号为第一配置类型或第二配置类型的解调参考信号；其中，所述第一配置类型与解调参考信号配置类型1相关，所述第二配置类型与解调参考信号配置类型2相关。
  11. 根据权利要求2所述的方法，其中，在以第三长度的子序列为基本单位生成所述频分覆盖码序列的情况下，所述目标解调参考信号为第一配置类型；其中，所述第一配置类型与解调参考信号配置类型1相关。
  12. 根据权利要求1所述的方法，其中，在所述第一通信设备为终端，所述第二通信设备为网络侧设备的情况下，所述方法还包括：
    所述终端从所述网络侧设备接收解扩指示信息，所述解扩指示信息用于指示所述终端在进行所述目标解调参考信号的信道估计时对应的解扩窗口信息，所述解扩窗口信息包括解扩窗口长度。
  13. 根据权利要求12所述的方法，其中，所述第一通信设备对所述目标解调参考信号进行信道估计，包括：
    所述终端基于所述解扩窗口长度对所述目标解调参考信号进行信道估计。
  14. 根据权利要求13所述的方法，其中，所述解扩窗口长度为2或4。
  15. 根据权利要求14所述的方法，其中，所述终端基于所述解扩窗口长度对所述目标解调参考信号进行信道估计，包括以下至少一种：
    在所述解扩窗口长度为2的情况下，针对所述目标解调参考信号中属于同一个码分复用组的端口，所述终端以所述端口在符号上所占用的相邻2个子载波为解扩窗口进行联合信道估计；
    在所述解扩窗口长度为4的情况下，针对所述目标解调参考信号中属于同一个码分复用组的端口，所述终端以所述端口在符号上所占用的相邻4个子载波为解扩窗口进行联合信道估计。
  16. 根据权利要求12所述的方法，其中，在所述终端从所述网络侧设备接收解扩指示信息之前，所述方法还包括：
    所述终端向所述网络侧设备上报所述终端的信道估计能力。
  17. 根据权利要求16所述的方法，其中，所述信道估计能力用于指示所述终端是否支持基于解扩窗口长度为4进行解调参考信号信道估计。
  18. 根据权利要求1所述的方法，其中，在所述第一通信设备为终端，所述第二通信设备为网络侧设备的情况下，在所述终端从所述网络侧设备接收目标解调参考信号之前，所述方法还包括：
    所述终端向所述网络侧设备上报所述终端支持的下行数据接收能力，所述下行数据接收能力包括所述终端支持的物理下行共享信道PDSCH的RB数目类型的能力。
  19. 根据权利要求18所述的方法，其中，所述PDSCH的RB数目类型包括以下一种：
    所述PDSCH的RB数目为偶数；
    所述PDSCH的RB数目为奇数或者偶数。
  20. 根据权利要求18所述的方法，其中，所述终端从所述网络侧设备接收目标配置信息，所述目标配置信息对应所述终端上报的下行数据接收能力，所述目标配置信息用于指示所述终端接收的PDSCH的RB数目类型。
  21. 一种解调参考信号传输装置，其中，包括：
    收发模块，用于从第二通信设备收目标解调参考信号；
    计算模块，用于对所述目标解调参考信号进行信道估计；
    其中，所述目标解调参考信号根据N个频分覆盖码序列生成，所述N个频分覆盖码序列以目标长度的子序列为基本单位，并以与所述目标长度的子序列对应的资源映射规则生成，所述频分覆盖码序列用于所述目标解调参考信号的端口的码分复用，所述N为正整数。
  22. 一种解调参考信号传输方法，其中，包括：
    第二通信设备以目标长度的子序列为基本单位，并以与所述目标长度的子序列对应的资源映射规则生成N个频分覆盖码序列，所述频分覆盖码序列用于目标解调参考信号解调参考信号的端口的码分复用；
    所述第二通信设备根据所述N个频分覆盖码序列生成并向第一通信设备发送目标解调参考信号；
    其中，所述N为正整数。
  23. 根据权利要求22所述的方法，其中，所述目标长度的子序列为以下之一：
    第一长度的子序列；
    第二长度的子序列；
    第三长度的子序列；
    其中，所述第一长度为2，所述第二长度为4，所述第三长度为6。
  24. 根据权利要求23所述的方法，其中，所述以目标长度的子序列为基本单位，并以与所述目标长度的子序列对应的资源映射规则生成N个频分覆盖码序列，包括以下方式之一：
    以第一长度的子序列为基本单位，将所述第一长度的子序列以第一映射规则的形式映射于所述端口所占的符号上的2个子载波，并且所述2个子载波属于同一个RB；
    以第二长度的子序列为基本单位，将所述第二长度的子序列以第二映射规则的形式映射于所述端口所占的符号上的4个子载波，并且所述4个子载波属于同一个RB或两个RB；
    以第三长度的子序列为基本单位生成，将所述第三长度的子序列以第三映射规则的形式映射于所述端口所占的符号上的6个子载波，并且所述6个子载波属于同一个RB。
  25. 根据权利要求23或24所述的方法，其中，所述第一长度的子序列为以下至少之一：
    第一子序列[+1,+1]；
    第二子序列[+1,-1]；
    第三子序列[-1,-1]；
    第四子序列[-1,+1]。
  26. 根据权利要求23或24所述的方法，其中，所述第二长度的子序列为以下至少之一：
    第五子序列[+1,+1,+1,+1]；
    第六子序列[+1,-1,+1,-1]；
    第七子序列[+1,+1,-1,-1]；
    第八子序列[+1,-1,-1,+1]。
  27. 根据权利要求23或24所述的方法，其中，所述第三长度的子序列为以下至少之一：
    第九子序列[+1,+1,+1,+1,+1,+1]；
    第十子序列[+1,-1,+1,-1,+1,-1]；
    第十一子序列[+1,+1,-1,-1,+1,+1]；
    第十二子序列[+1,-1,-1,+1,+1,-1]。
  28. 根据权利要求25所述的方法，其中，在以第一子序列和第三子序列为基本单位生成频分覆盖码序列的情况下，所述第一映射规则为将第一子序列和第三子序列交替映射于端口所占的符号上的子载波。
  29. 根据权利要求25所述的方法，其中，在以第二子序列和第四子序列为基本单位生成频分覆盖码序列的情况下，所述第一映射规则为将第二子序列和第四子序列交替映射于端口所占的符号上的子载波。
  30. 根据权利要求22所述的方法，其中，所述频分覆盖码序列以序号为0的公共资源块的起始子载波作为起始位置生成。
  31. 根据权利要求23所述的方法，其中，在以第一长度的子序列或第二长度的子序列为基本单位生成所述频分覆盖码序列的情况下，所述目标解调参考信号为第一配置类型或第二配置类型的解调参考信号；其中，所述第一配置类型与解调参考信号配置类型1相关，所述第二配置类型与解调参考信号配置类型2相关。
  32. 根据权利要求23所述的方法，其中，在以第三长度的子序列为基本单位生成所述频分覆盖码序列的情况下，所述解调参考信号为第一配置类型；其中，所述第一配置类型与解调参考信号配置类型1相关。
  33. 根据权利要求22所述的方法，其中，在所述第一通信设备为终端，所述第二通信设备为网络侧设备的情况下，所述方法还包括：
    所述网络侧设备向所述终端发送解扩指示信息，所述解扩指示信息用于指示所述终端在进行所述目标解调参考信号的信道估计时对应的解扩窗口信息，所述解扩窗口信息包括解扩窗口长度。
  34. 根据权利要求33所述的方法，其中，所述解扩窗口长度为2或4。
  35. 根据权利要求33所述的方法，其中，在所述网络侧设备向所述终端发送解扩指示信息之前，所述方法还包括：
    所述网络侧设备从所述终端接收所述终端的信道估计能力。
  36. 根据权利要求35所述的方法，其中，所述信道估计能力用于指示所述终端是否支持基于解扩窗口长度为4进行解调参考信号信道估计。
  37. 根据权利要求22所述的方法，其中，在所述第一通信设备为终端，所述第二通信设备为网络侧设备的情况下，在所述网络侧设备向所述终端发送目标解调参考信号之前，所述方法还包括：
    所述网络侧设备从所述终端接收所述终端支持的下行数据接收能力，所 述下行数据接收能力包括所述终端支持的PDSCH的RB数目类型的能力。
  38. 根据权利要求37所述的方法，其中，所述PDSCH的RB数目类型包括以下一种：
    所述PDSCH的RB数目为偶数；
    所述PDSCH的RB数目为奇数或者偶数。
  39. 根据权利要求37所述的方法，其中，所述网络侧设备向所述终端发送目标配置信息，所述目标配置信息对应所述网络侧设备从所述终端接收的所述终端支持的下行数据接收能力，所述目标配置信息用于指示所述终端接收的PDSCH的RB数目类型。
  40. 一种解调参考信号传输装置，其中，包括：
    生成模块，用于以目标长度的子序列为基本单位，并以与所述目标长度的子序列对应的资源映射规则生成N个频分覆盖码序列，所述频分覆盖码序列用于目标解调参考信号解调参考信号的端口的码分复用；
    传输模块，用于根据所述N个频分覆盖码序列生成并向第一通信设备发送目标解调参考信号；
    其中，所述N为正整数。
  41. 一种终端，其中，包括处理器和存储器，所述存储器存储可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如权利要求1至20任一项所述的解调参考信号传输方法的步骤。
  42. 一种网络侧设备，其中，包括处理器和存储器，所述存储器存储可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如权利要求22至39任一项所述的解调参考信号传输方法的步骤。
  43. 一种可读存储介质，其中，所述可读存储介质上存储程序或指令，所述程序或指令被处理器执行时实现如权利要求1-20任一项所述的解调参考信号传输方法，或者实现如权利要求22至39任一项所述的解调参考信号传输方法的步骤。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2025516224A (ja) * 2022-04-28 2025-05-27 アップル インコーポレイテッド Ｃｄｍグループ拡張を伴うｄｍｒｓ設計

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180254867A1 (en) * 2015-09-14 2018-09-06 Lg Electronics Inc. Method for transmitting and receiving demodulation reference signal, and apparatus using same
CN110166194A (zh) * 2018-02-12 2019-08-23 华为技术有限公司 一种导频信号生成方法及装置
CN111277383A (zh) * 2019-02-15 2020-06-12 维沃移动通信有限公司 参考信号生成的方法及通信设备
CN111416692A (zh) * 2019-01-07 2020-07-14 中国移动通信有限公司研究院 一种配置方法及设备
CN112104444A (zh) * 2019-06-17 2020-12-18 中国移动通信有限公司研究院 参考信号的发送方法、终端及网络侧设备

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016127309A1 (en) * 2015-02-10 2016-08-18 Qualcomm Incorporated Dmrs enhancement for higher order mu-mimo
KR102375473B1 (ko) * 2017-03-23 2022-03-17 주식회사 아이티엘 Nr 시스템을 위한 복조 참조신호 패턴 설정 정보 송수신 방법 및 장치
US11902069B2 (en) * 2019-08-02 2024-02-13 Ntt Docomo, Inc. Terminal and radio communication method
WO2023141910A1 (en) * 2022-01-28 2023-08-03 Zte Corporation Systems and methods for dmrs port configuration and indication

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180254867A1 (en) * 2015-09-14 2018-09-06 Lg Electronics Inc. Method for transmitting and receiving demodulation reference signal, and apparatus using same
CN110166194A (zh) * 2018-02-12 2019-08-23 华为技术有限公司 一种导频信号生成方法及装置
CN111416692A (zh) * 2019-01-07 2020-07-14 中国移动通信有限公司研究院 一种配置方法及设备
CN111277383A (zh) * 2019-02-15 2020-06-12 维沃移动通信有限公司 参考信号生成的方法及通信设备
CN112104444A (zh) * 2019-06-17 2020-12-18 中国移动通信有限公司研究院 参考信号的发送方法、终端及网络侧设备

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4507426A4 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2025516224A (ja) * 2022-04-28 2025-05-27 アップル インコーポレイテッド Ｃｄｍグループ拡張を伴うｄｍｒｓ設計

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