WO2022151500A1 - Procédé et appareil de communication - Google Patents

Procédé et appareil de communication Download PDF

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Publication number
WO2022151500A1
WO2022151500A1 PCT/CN2021/072566 CN2021072566W WO2022151500A1 WO 2022151500 A1 WO2022151500 A1 WO 2022151500A1 CN 2021072566 W CN2021072566 W CN 2021072566W WO 2022151500 A1 WO2022151500 A1 WO 2022151500A1
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WIPO (PCT)
Prior art keywords
resource
target resource
time slots
frequency domain
information
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PCT/CN2021/072566
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English (en)
Chinese (zh)
Inventor
余健
余雅威
郭志恒
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2021/072566 priority Critical patent/WO2022151500A1/fr
Priority to CN202180076306.3A priority patent/CN116548043A/zh
Publication of WO2022151500A1 publication Critical patent/WO2022151500A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a communication method and apparatus.
  • sending information from a network device to a terminal device is generally called downlink (DL) communication, and sending information from a terminal device to a network device is called (Uplink, UL) communication.
  • DL downlink
  • Uplink, UL uplink
  • the terminal device or the network device needs to determine the time and frequency mapping resources, and then send information on the determined mapping resources.
  • DMRS demodulation reference signal
  • the present application provides a communication method and device, which can flexibly implement channel resource mapping.
  • an embodiment of the present application provides a communication method, which is applied to a terminal device or can also be applied to a chip inside the terminal device.
  • the terminal device obtains first information, where the first information is used to indicate the resource mapping type on the first frequency domain resource, and the first frequency domain resource is included in a physical resource block PRB, when the frequency domain resource type When it is the first type, the target resource is determined, and the resource is used to send or receive data, where the target resource is a discontinuous resource on the first frequency domain resource.
  • the above method can better match the DMRS frequency domain resource location, not only can maintain backward compatibility with traditional terminal equipment, but also provide compatibility with existing protocols, and can also obtain better channel estimation performance.
  • determining the target resource includes: determining the target resource according to the second information and the third information;
  • the second information includes first frequency domain resource indication information
  • the third information includes at least one of the location information of the first subcarrier in the target resource, the number of subcarriers included in the target resource, and the frequency domain interval, and the frequency domain interval represents The interval between two adjacent subcarriers.
  • the method further includes: determining a first parameter according to the scaling factor; and determining the number of bits included in the data according to the first parameter.
  • the scaling factor includes a frequency-domain scaling factor ⁇ and/or a time-domain scaling factor S; the first parameter N info satisfies one of the following formulas:
  • N info ⁇ ⁇ N RE ⁇ R ⁇ Q m ⁇ ⁇ , or
  • N info S ⁇ N RE ⁇ R ⁇ Q m ⁇ ⁇ , or
  • N info ⁇ S ⁇ N RE ⁇ R ⁇ Q m ⁇
  • R is the code rate
  • Q m is the modulation mode
  • v is the number of layers or streams to be transmitted
  • N RE is the number of resource units used for data transmission in a time slot.
  • the terminal device can determine the first parameter according to the frequency domain scaling factor and/or the time domain scaling factor, so as to ensure that the calculated first parameter is more accurate, thereby better matching the scaling of time-frequency resources.
  • the method also includes:
  • the time domain resource includes M time slots, and M is a positive integer
  • the target resource corresponding to each of the M time slots is determined.
  • the target resource corresponding to each of the M time slots is determined, including:
  • the position information of the first subcarrier in the target resource corresponding to the first time slot of the M time slots the number of subcarriers included in the target resource corresponding to the first time slot of the M time slots, the The interval between two adjacent subcarriers in the target resource corresponding to the first time slot and the subcarrier offset value determine the target resource corresponding to each time slot of the M time slots.
  • the terminal device can determine the target resource corresponding to each time slot of the M time slots according to the target resource corresponding to the first time slot of the M time slots, thereby saving configuration signaling overhead.
  • the first subcarrier position information RE start (i) in the target resource corresponding to each of the M time slots satisfies the formula:
  • RE start represents the position information of the first subcarrier in the target resource corresponding to the first time slot in the M time slots
  • RE offset represents the subcarrier offset value
  • mod represents the modulo operation
  • i represents the slot index in 1 radio frame or represents the slot index in M time slots
  • the number of subcarriers included in the target resource corresponding to each time slot in the M time slots is the number of subcarriers included in the target resource corresponding to the first time slot in the M time slots;
  • the interval between two adjacent subcarriers in the target resource corresponding to each of the M time slots is the interval between adjacent two subcarriers in the target resource corresponding to the first time slot in the M time slots.
  • the terminal device can determine the target resource corresponding to each time slot of the M time slots according to the target resource corresponding to the first time slot of the M time slots.
  • the number of subcarriers included in the target resource and the interval between two adjacent subcarriers in the target resource are the same, thereby saving configuration signaling overhead.
  • data is carried on the physical downlink shared channel PDSCH or the physical uplink shared channel PUSCH.
  • the sequence length M ZC of the demodulation reference signal DMRS corresponding to the data is 2 or 3 or 4 or 6.
  • the sequence generation of the demodulation reference signal DMRS satisfies the formula:
  • the first parameter is determined according to the DMRS sequence length M ZC and the group index u.
  • obtaining the first information includes:
  • the first information is obtained from itself or received from a network device.
  • the method also includes:
  • a target resource on the first frequency domain resource is determined, and the target resource is a continuous resource on the first frequency domain resource.
  • the resource mapping types on the first frequency domain resources are distinguished, and different resource mapping types on the first frequency domain resources can be provided for the terminal device, so that the frequency domain resource mapping is more flexible.
  • the second information is carried in radio resource control signaling or media access control signaling or downlink control signaling; the third information is carried in radio resource control signaling or medium access control signaling or downlink control signaling control signaling.
  • an embodiment of the present application provides a communication method, which is applied to a network device or can also be applied to a chip inside the network device.
  • the network device sends first information, where the first information is used to indicate the resource mapping type on the first frequency domain resource, and the first frequency domain resource is included in a physical resource block PRB; when the resource mapping type is In the case of the first type, a target resource is determined, and data is received or sent according to the target resource, wherein the target resource is a discontinuous resource on the first frequency domain resource;
  • determining the target resource includes: determining the target resource according to the second information and the third information; wherein the second information includes first frequency domain resource indication information; the third information includes the first in the target resource At least one of the position information of the subcarriers, the number of subcarriers included in the target resource, and the frequency domain interval, where the frequency domain interval represents the interval between two adjacent subcarriers.
  • the method further includes: determining a first parameter according to the scaling factor; and then determining the number of bits included in the data according to the first parameter.
  • the scaling factor includes a frequency-domain scaling factor ⁇ and/or a time-domain scaling factor S; the first parameter N info satisfies one of the following formulas:
  • N info ⁇ ⁇ N RE ⁇ R ⁇ Q m ⁇ ⁇ , or
  • N info S ⁇ N RE ⁇ R ⁇ Q m ⁇ ⁇ , or
  • N info ⁇ S ⁇ N RE ⁇ R ⁇ Q m ⁇
  • R is the code rate
  • Q m is the modulation mode
  • v is the number of layers or streams to be transmitted
  • N RE is the number of resource units used for data transmission in a time slot.
  • the terminal device can determine the first parameter according to the frequency-domain scaling factor and/or the time-domain scaling factor, so as to better match the scaling of time-frequency resources and ensure that the calculated first parameter is more accurate.
  • the method further includes: determining a time domain resource corresponding to the first frequency domain resource, the time domain resource includes M time slots, and M is a positive integer; when M is greater than or equal to 2, determining M time slots The target resource corresponding to each time slot of the slot.
  • the target resource corresponding to each of the M time slots is determined, including:
  • the position information of the first subcarrier in the target resource corresponding to the first time slot of the M time slots the number of subcarriers included in the target resource corresponding to the first time slot of the M time slots, the The interval between two adjacent subcarriers in the target resource corresponding to the first time slot and the subcarrier offset value determine the target resource corresponding to each time slot of the M time slots.
  • the terminal device can determine the process of the target resource corresponding to each time slot of the M time slots according to the target resource corresponding to the first time slot of the M time slots.
  • the first subcarrier position information RE start (i) in the target resource corresponding to each of the M time slots satisfies the formula:
  • RE start represents the position information of the first subcarrier in the target resource corresponding to the first time slot in the M time slots
  • RE offset represents the subcarrier offset value
  • mod represents the modulo operation
  • i represents the slot index in 1 radio frame or represents the slot index in M time slots
  • the number of subcarriers included in the target resource corresponding to each time slot in the M time slots is the number of subcarriers included in the target resource corresponding to the first time slot in the M time slots;
  • the interval between two adjacent subcarriers in the target resource corresponding to each of the M time slots is the interval between adjacent two subcarriers in the target resource corresponding to the first time slot in the M time slots.
  • the terminal device can determine the specific process of the target resource corresponding to each time slot of the M time slots according to the target resource corresponding to the first time slot of the M time slots.
  • the target resource corresponding to a time slot includes the same number of subcarriers and the interval between two adjacent subcarriers in the target resource, thereby saving configuration signaling overhead.
  • data is carried on the physical downlink shared channel PDSCH or the physical uplink shared channel PUSCH.
  • the sequence length M ZC of the demodulation reference signal DMRS corresponding to the data is 2 or 3 or 4 or 6.
  • the sequence generation of the demodulation reference signal DMRS satisfies the formula:
  • the first parameter is determined according to the DMRS sequence length M ZC and the group index u.
  • the method also includes:
  • a target resource on the first frequency domain resource is determined, and the target resource is a continuous resource on the first frequency domain resource.
  • the second information is carried in radio resource control signaling or media access control signaling or downlink control signaling; the third information is carried in radio resource control signaling or medium access control signaling or downlink control signaling control signaling.
  • a communication apparatus including various modules or units for performing any of the above aspects or the methods in any of the possible implementations of the aspect.
  • a communication apparatus including a processor.
  • the processor is coupled to a memory and operable to execute instructions in the memory to cause the apparatus to perform any of the above aspects or a method of any of the possible implementations of this aspect.
  • the apparatus further includes a memory.
  • the apparatus further includes an interface circuit, and the processor is coupled to the interface circuit.
  • a processor including: an input circuit, an output circuit, and a processing circuit.
  • the processing circuit is configured to receive signals through the input circuit and transmit signals through the output circuit, so that the processor performs any of the above aspects or the method in any of the possible implementations of this aspect.
  • the above-mentioned processor may be a chip
  • the input circuit may be an input pin
  • the output circuit may be an output pin
  • the processing circuit may be a transistor, a gate circuit, a flip-flop, and various logic circuits.
  • the input signal received by the input circuit may be received and input by, for example, but not limited to, a receiver
  • the signal output by the output circuit may be, for example, but not limited to, output to and transmitted by a transmitter
  • the circuit can be the same circuit that acts as an input circuit and an output circuit at different times.
  • the embodiments of the present application do not limit the specific implementation manners of the processor and various circuits.
  • a communication device including a processor and a memory.
  • the processor is used to read the instructions stored in the memory, and can receive signals through the receiver and transmit signals through the transmitter, so as to execute the method in any of the above aspects or any of the possible implementations of this aspect.
  • the processor is one or more, and the memory is one or more.
  • the memory may be integrated with the processor, or the memory may be provided separately from the processor.
  • the memory can be a non-transitory memory, such as a read only memory (ROM), which can be integrated with the processor on the same chip, or can be separately set in different On the chip, the embodiment of the present application does not limit the type of the memory and the setting manner of the memory and the processor.
  • ROM read only memory
  • the processing device in the sixth aspect may be a chip, and the processor may be implemented by hardware or by software.
  • the processor When implemented by hardware, the processor may be a logic circuit, an integrated circuit, etc.; when implemented by software
  • the processor can be a general-purpose processor, which is realized by reading software codes stored in a memory, and the memory can be integrated in the processor or located outside the processor and exist independently.
  • a computer program product comprising: a computer program (also referred to as code, or instructions), which, when the computer program is executed, causes a computer to perform any one of the above-mentioned aspects or any of the aspects in this aspect. method in any of the possible implementations.
  • a computer program also referred to as code, or instructions
  • a computer-readable medium stores a computer program (also referred to as code, or instruction), when it runs on a computer, causing the computer to perform any one of the above-mentioned aspects or this aspect method in any of the possible implementations.
  • a computer program also referred to as code, or instruction
  • FIG. 1 is a schematic diagram of a network architecture to which an embodiment of the present application is applicable;
  • FIG. 2 is a schematic diagram of another network architecture to which the embodiments of the present application are applicable;
  • FIG. 3 is a schematic diagram of another network architecture to which the embodiment of the present application is applicable.
  • FIG. 4 is a schematic diagram of a method for resource mapping
  • 5 is a schematic diagram of another method for resource mapping
  • FIG. 6 is a schematic flowchart of a resource mapping method provided by an embodiment of the present application.
  • 6a is a schematic diagram of a resource mapping method provided by an embodiment of the present application.
  • 6b is a schematic diagram of yet another resource mapping method provided by an embodiment of the present application.
  • FIG. 6c is a schematic diagram of yet another resource mapping method provided by an embodiment of the present application.
  • FIG. 6d is a schematic diagram of yet another resource mapping method provided by an embodiment of the present application.
  • FIG. 7 is a schematic flowchart of another resource mapping method provided by an embodiment of the present application.
  • FIG. 8 is a schematic diagram of a resource mapping method provided by an embodiment of the present application.
  • FIG. 9 is a schematic diagram of yet another resource mapping method provided by an embodiment of the present application.
  • FIG. 10 is a schematic diagram of yet another resource mapping method provided by an embodiment of the present application.
  • FIG. 11 is a schematic diagram of a communication device provided by an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • Terminal device It can be a wireless terminal device that can receive scheduling and instruction information of network devices.
  • the wireless terminal device can be a device that provides voice and/or data connectivity to users, or a handheld device with wireless connection function, or Other processing equipment connected to the wireless modem.
  • Terminal equipment can communicate with one or more core networks or the Internet via a radio access network (RAN), and the terminal equipment can be a mobile terminal equipment, such as a mobile phone (or "cellular" phone, mobile phone (mobile phone), computer and data cards, for example, may be portable, pocket-sized, hand-held, computer built-in or vehicle mounted mobile devices that exchange language and/or data with the radio access network.
  • RAN radio access network
  • Wireless terminal equipment may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station (MS), a remote station, an access point ( access point (AP), remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), subscriber station (SS), user terminal equipment (customer premises equipment, CPE), terminal (terminal), user equipment (user equipment, UE), mobile terminal (mobile terminal, MT), etc.
  • the terminal device may also be a wearable device and a next-generation communication system, for example, a terminal device in a 5G communication system or a terminal device in a future evolved public land mobile network (PLMN).
  • PLMN public land mobile network
  • Network device It can be a device in a wireless network.
  • a network device can be a radio access network (RAN) node (or device) that connects a terminal device to a wireless network, also known as a base station.
  • RAN equipment are: generation Node B (gNodeB), transmission reception point (TRP), evolved Node B (evolved Node B, eNB), wireless network in the 5G communication system Controller (radio network controller, RNC), Node B (Node B, NB), base station controller (base station controller, BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved NodeB, Or home Node B, HNB), base band unit (base band unit, BBU), or wireless fidelity (wireless fidelity, Wi-Fi) access point (access point, AP), etc.
  • RNC radio network controller
  • Node B Node B
  • BSC base station controller
  • base transceiver station base transceiver station
  • BTS home
  • the network device may include a centralized unit (centralized unit, CU) node, or a distributed unit (distributed unit, DU) node, or a RAN device including a CU node and a DU node.
  • a centralized unit centralized unit, CU
  • a distributed unit distributed unit, DU
  • RAN device including a CU node and a DU node.
  • the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
  • This hardware layer includes hardware such as central processing unit (CPU), memory management unit (MMU), and memory (also called main memory).
  • the operating system may be any one or more computer operating systems that implement business processing through processes, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a Windows operating system.
  • the application layer includes applications such as browsers, address books, word processing software, and instant messaging software.
  • the embodiments of the present application do not specifically limit the specific structure of the execution body of the methods provided by the embodiments of the present application, as long as the program that records the codes of the methods provided by the embodiments of the present application can be executed to provide the methods provided by the embodiments of the present application.
  • the execution subject of the method provided by the embodiment of the present application may be a terminal device or a network device, or a functional module in the terminal device or network device that can call and execute a program.
  • various aspects or features of the present application may be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques.
  • article of manufacture encompasses a computer program accessible from any computer readable device, carrier or medium.
  • computer readable media may include, but are not limited to: magnetic storage devices (eg, hard disks, floppy disks, or magnetic tapes, etc.), optical disks (eg, compact discs (CDs), digital versatile discs (DVDs) etc.), smart cards and flash memory devices (eg, erasable programmable read-only memory (EPROM), card, stick or key drives, etc.).
  • various storage media described herein can represent one or more devices and/or other machine-readable media for storing information.
  • the term "machine-readable medium” may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or data.
  • ordinal numbers such as “first” and “second” mentioned in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the order, sequence, priority or importance of multiple objects degree.
  • first threshold and the second threshold are only for distinguishing different thresholds, and do not indicate the difference in priority or importance of the two thresholds.
  • FIG. 1 is a schematic diagram of a communication system to which an embodiment of the present application is applied.
  • the terminal device 130 can be connected to a wireless network to obtain services of an external network (eg, the Internet) through the wireless network, or communicate with other devices through the wireless network, for example, can communicate with other terminal devices.
  • the wireless network includes a radio access network (RAN) device 110 and a core network (core network, CN) device 120, wherein the RAN device 110 is used to access the terminal device 130 to the wireless network, and the CN device 120 is used to connect the terminal device 130 to the wireless network.
  • the number of each device in the communication system shown in FIG. 1 is only for illustration, and the embodiments of the present application are not limited to this. In practical applications, the communication system may also include more terminal devices 130 and more RAN devices. 110, other devices may also be included.
  • FIG. 2 is a schematic diagram of another network architecture to which this embodiment of the present application is applied.
  • the network architecture includes CN equipment, RAN equipment and terminal equipment.
  • the RAN equipment includes a baseband device and a radio frequency device, where the baseband device can be implemented by one node or multiple nodes, and the radio frequency device can be implemented independently from the baseband device, or can be integrated in the baseband device, or some functions Independent integration, some functions are integrated in the baseband device.
  • a RAN equipment includes a baseband device and a radio frequency device, wherein the radio frequency device may be arranged remotely relative to the baseband device, for example, a remote radio unit (remote radio unit, RRU) is arranged relative to the BBU remote wireless unit.
  • a remote radio unit remote radio unit, RRU
  • the control plane protocol layer structure may include a radio resource control (RRC) layer, a packet data convergence protocol (packet data convergence protocol, PDCP) layer. , radio link control (radio link control, RLC) layer, media access control (media access control, MAC) layer and physical layer and other protocol layer functions; user plane protocol layer structure can include PDCP layer, RLC layer, MAC layer
  • RRC radio resource control
  • RLC radio link control
  • MAC media access control
  • user plane protocol layer structure can include PDCP layer, RLC layer, MAC layer
  • SDAP service data adaptation protocol
  • a RAN device may implement the functions of protocol layers such as RRC, PDCP, RLC, and MAC by one node, or may implement the functions of these protocol layers by multiple nodes.
  • a RAN device may include a CU) and a DU, and multiple DUs may be centrally controlled by one CU.
  • the CU and DU can be divided according to the protocol layers of the wireless network. For example, the functions of the PDCP layer and above are set in the CU, and the functions of the protocol layers below PDCP, such as the RLC layer and the MAC layer, are set in the DU.
  • this protocol layer is only an example, and it can also be divided at other protocol layers, for example, at the RLC layer, the functions of the RLC layer and the above protocol layers are set in the CU, and the functions of the protocol layers below the RLC layer are set in the DU; Alternatively, in a certain protocol layer, for example, some functions of the RLC layer and functions of the protocol layers above the RLC layer are placed in the CU, and the remaining functions of the RLC layer and the functions of the protocol layers below the RLC layer are placed in the DU. In addition, it can also be divided in other ways, for example, by time delay, the functions whose processing time needs to meet the delay requirements are set in the DU, and the functions that do not need to meet the delay requirements are set in the CU.
  • radio frequency device may be integrated independently, not placed in the DU, may also be integrated in the DU, or partially remote and partially integrated in the DU, which is not limited herein.
  • FIG. 3 is a schematic diagram of another network architecture to which this embodiment of the present application is applied.
  • the control plane (CP) and user plane (UP) of the CU can also be separated and divided into different entities for implementation, namely the control plane (CP) CU entity ( That is, the CU-CP entity) and the user plane (user plane, UP) CU entity (that is, the CU-UP entity).
  • CP control plane
  • UP user plane
  • the signaling generated by the CU can be sent to the terminal device through the DU, or the signaling generated by the terminal device can be sent to the CU through the DU.
  • the DU may not parse the signaling, but directly encapsulate it through the protocol layer and transparently transmit it to the terminal device or CU.
  • the sending or receiving of the signaling by the DU includes this scenario.
  • the signaling of the RRC or PDCP layer is finally processed as the signaling of the PHY layer and sent to the terminal device, or is converted from the received signaling of the PHY layer.
  • the signaling of the RRC or PDCP layer can also be considered to be sent by the DU, or sent by the DU and radio frequency loading.
  • the network architecture shown in FIG. 1 , FIG. 2 or FIG. 3 can be applied to communication systems of various radio access technologies (RATs), such as an LTE communication system, or a 5G (or referred to as 5G) communication system.
  • the new wireless (new radio, NR) communication system can also be a transition system between the LTE communication system and the 5G communication system.
  • the transition system can also be called a 4.5G communication system, and of course it can also be a future communication system.
  • the network architecture and service scenarios described in the embodiments of the present application are for the purpose of illustrating the technical solutions of the embodiments of the present application more clearly, and do not constitute limitations on the technical solutions provided by the embodiments of the present application.
  • the evolution of the network architecture and the emergence of new service scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.
  • the apparatuses in the following embodiments of the present application may be located in terminal equipment or network equipment according to the functions implemented by them.
  • the network device may be a CU node, or a DU node, or a RAN device including a CU node and a DU node.
  • DMRS Demodulation reference signal
  • DMRS can be used for channel estimation. Since it is not necessary to estimate the channel quality outside the frequency band occupied by the physical channel, the DMRS is usually transmitted together with the corresponding physical channel (uplink physical channel or downlink physical channel) and occupies the same bandwidth.
  • the DMRS configuration information may include the following information:
  • DMRS type used to indicate the density of DMRS symbols in the frequency domain, the type can be Type1 or Type2, this parameter can be combined with the number of DMRS symbols to determine the number of supported antenna ports;
  • (2) DMRS time domain position used to indicate the position of the DMRS symbol in the time domain.
  • the time domain position of the DMRS can be determined according to the front-loaded DMRS symbol configuration (Front-loaded DMRS Symbol) and the additional DMRS symbol (Additional DMRS Symbol) configuration .
  • Front-loaded DMRS can be configured on the 1st, 2nd or 3rd and 4th symbols.
  • extra DMRS symbols are usually used for channel estimation and demodulation in high-speed mobile scenarios;
  • CDM Code-Domain Multiplexing
  • a CDM group It includes multiple antenna ports that use the same time-frequency resource for transmission; the number of CDM groups and the number of antenna ports included in each CDM group can be determined according to the DMRS type and the number of symbols, as shown in Table 1 and Table 2:
  • Antenna port referred to as port.
  • One antenna port may be configured for each virtual antenna, each virtual antenna may be a weighted combination of multiple physical antennas, and each antenna port may correspond to one reference signal port.
  • Resource mapping refers to allocating bits or modulation symbols to be transmitted to corresponding time and frequency resources for transmission.
  • the DMRS is usually transmitted together with the corresponding physical channel (uplink physical channel or downlink physical channel), and covers the same frequency band.
  • the resource mapping is introduced below by taking the DMRS existing in the Physical Uplink Shared Channel (PUSCH) as an example.
  • the network device configures the DMRS parameters as follows: the DMRS type is Type1, the number of symbols is a single symbol, no additional DMRS symbols, the number of CDM groups is 2, and the corresponding DMRS symbol is located in the first Symbol.
  • the DMRS type is Type1
  • the number of symbols is a single symbol
  • no additional DMRS symbols is 2
  • the number of CDM groups is 2
  • the corresponding DMRS symbol is located in the first Symbol.
  • DFT-S-OFDM discrete Fourier Transform-Spread OFDM
  • each time slot includes 14 OFDM symbols
  • the PUSCH Data can be mapped to frequency domain positions with subcarrier indices 0 to 5, while DMRS symbols can only be mapped to CDM group 0 (frequency domain positions of subcarrier indices 0, 2, and 4) or to CDM group 1 ( In the frequency domain positions with subcarrier indices 1, 3, and 5), since only 3 subcarriers can be used to transmit DMRS at this time, the density of DMRS is reduced, thereby affecting the performance of channel estimation.
  • the network device configures the DMRS parameters as: the DMRS type is Type1, the number of symbols is single symbol, no additional DMRS symbols, the number of CDM groups is 2, and the corresponding DMRS symbol is located in the first Symbol.
  • the DMRS type is Type1
  • the number of symbols is single symbol
  • no additional DMRS symbols the number of CDM groups is 2
  • the corresponding DMRS symbol is located in the first Symbol.
  • DFT-S-OFDM discrete Fourier Transform-Spread OFDM
  • each time slot includes 14 OFDM symbols
  • the PUSCH Data can be mapped to frequency domain positions with subcarrier indices 6 to 11, while DMRS symbols can only be mapped to CDM group 0 (frequency domain positions of subcarrier indices 6, 8, and 10) or to CDM group 1 ( In the frequency domain positions with subcarrier indices 7, 9, and 11), since only 3 subcarriers can be used to transmit DMRS at this time, the density of DMRS is reduced, thereby affecting the performance of channel estimation.
  • the embodiments of the present application provide a resource mapping method and apparatus, so as to solve the problem that inflexible resource mapping affects channel estimation performance.
  • the resource mapping method provided in this embodiment of the present application may include two possible solutions, which are referred to as solution one and solution two for ease of description.
  • the terminal device acquires the type of resource mapping on the first frequency domain resource, the terminal device determines the target resource from the first frequency domain resource, and maps the data to the target resource according to the type of resource mapping, and then The target resource is used to receive or send the same data; in this way, by distinguishing the frequency domain resource mapping type, the frequency domain resource mapping is made more flexible, so as to better match the existing DMRS frequency domain resource location and obtain better channel estimation performance.
  • the terminal device obtains the subcarrier offset value, and then when the terminal device determines to transmit or receive the same data through multiple time slots, it can obtain the subcarrier offset value according to the target resources and subcarriers in the first time slot of the multiple time slots.
  • Offset value determine the target resource on each time slot of multiple time slots, and map data to the target resource according to the type of resource mapping, and then send or receive the same data through multiple time slots on the determined target resource
  • the frequency domain resource mapping can be made more flexible, and better channel estimation performance can be obtained;
  • subcarrier offset values it is beneficial to enhance the interference randomization performance , thereby reducing the probability of continuous strong interference between neighboring cells.
  • the network device can also be replaced by a chip configured in the network device, and the terminal device can also be replaced by a chip configured in the terminal device. chip.
  • FIG. 6 is a schematic flowchart corresponding to a resource mapping method provided by an embodiment of the present application, as shown in FIG. 6 , including:
  • a terminal device acquires first information, where the first information indicates a resource mapping type on a first frequency domain resource.
  • the terminal device determines the resource mapping type on the first frequency domain resource according to the first information, and the first frequency domain resource is included in a physical resource block PRB; wherein, "resource mapping type” can be replaced with “resource mapping type” Mapping mode", or replaced with “resource mapping information” or other similar concepts, which are not specifically limited.
  • the resource mapping type includes one of the first type and the second type.
  • the resource mapping type is the first type, discontinuous resource mapping is used; when the resource mapping type is the second type, continuous resource mapping is used. resource mapping, otherwise, it will not be repeated here.
  • discontinuous resource mapping is used, the mapped resources are discontinuous in the frequency domain corresponding to one PRB; if continuous resource mapping is used, the mapped resources are in the frequency domain corresponding to one PRB. continuously.
  • the mapped resources are frequency domain resources scheduled by the network device to the terminal device.
  • Implementation mode a1 The terminal device obtains from itself.
  • the terminal is obtained by presetting a subscriber identity module (subscriber identity module, SIM) card, or by presetting the first information, etc.; using this method can save communication resources or signaling expenses between the terminal device and the network device .
  • SIM subscriber identity module
  • Implementation mode a2 the terminal device acquires from the network device, that is, the terminal device receives the first information sent from the network device, and this mode can make the acquisition mode of the first information more flexible.
  • the first information may be carried in various possible messages, such as a radio resource control (Radio Resource Control, RRC) message, or downlink control information (Downlink Control Information, DCI) or media access control (media access control) control, MAC) control element (control element, CE) or other possible messages, which are not specifically limited.
  • RRC Radio Resource Control
  • DCI Downlink Control Information
  • MAC media access control
  • CE control element
  • the first information indicating the resource mapping type on the first frequency domain resource may include multiple bits, and then different resource mapping types are indicated by different values of the multiple bits.
  • the first information may include 1 bit. When the value of the bit is "0", the indicated resource mapping type is discontinuous mode, and when the bit is set to "1", the indicated resource mapping Type is continuous.
  • the specific number of bits used and the resource mapping types corresponding to different values may not be limited in this embodiment of the present application.
  • the first indication information may indicate different resource mapping types through a bitmap, wherein the correspondence between different bits in the bitmap and resource mapping types may be preset.
  • the first indication information includes 2 bits, the first bit of the 2 bits corresponds to the resource mapping type being discontinuous, and the second bit of the 2 bits corresponds to the resource mapping type that is continuous. If the value of 2 bits is "10" (that is, the first bit of the 2 bits is "1", and the second bit is "0"), it means that the resource mapping type is discontinuous Way.
  • the specific used bitmap and the corresponding relationship between the bitmap and the resource mapping type may not be limited in this embodiment of the present application.
  • the first indication information may include multiple fields, and the presence or absence of multiple fields may further indicate different resource mapping types.
  • the first indication information may include one field. If this field exists in the first indication information, it means that the resource mapping type is discontinuous; if this field does not exist, it means that the resource mapping type is continuous, and vice versa. .
  • the above is only an example, and the number of fields used and the resource mapping types corresponding to whether different fields exist or not are not limited in this embodiment of the present application.
  • the network device sends second information to the terminal device, where the second information includes first frequency domain resource indication information.
  • the terminal device receives the second information sent by the network device, and determines the first frequency domain resource according to the second information.
  • the first frequency domain resource indication information indicates the first frequency domain resource, and the specific indication manner may be direct indication or indirect indication. Exemplarily, there are multiple manners for the terminal device to determine the first frequency domain resource according to the second information, which will be described below in conjunction with implementation manner b1 and implementation manner b2.
  • Implementation manner b1 The terminal device directly determines the first frequency domain resource according to the first frequency domain resource indication information included in the second information. That is, the first frequency-domain resource indication information is in the form of direct indication, for example, the first frequency-domain resource indication information includes an index of the first frequency-domain resource.
  • the terminal device determines the frequency domain resource corresponding to the first frequency domain resource indication information as the first frequency domain resource. For example, if the frequency domain resource corresponding to the first frequency domain resource indication information is PRB m (PRB m or the m+1 th PRB), the terminal device determines that the first frequency domain resource is PRB m .
  • Implementation manner b2 The terminal device determines the first frequency domain resource according to the first frequency domain resource indication information included in the second information and the auxiliary parameter. That is, the first frequency domain resource indication information is an indirect indication manner, for example, the first frequency domain resource indication information may include an index of the first frequency domain resource.
  • the terminal device when the terminal device determines the first frequency domain resource, it may first determine the virtual first frequency domain resource according to the first frequency domain resource indication information included in the second information, and then determine the virtual first frequency domain resource according to the virtual first frequency domain resource and the auxiliary parameter. to determine the first frequency domain resource.
  • the terminal device removes the frequency domain resources corresponding to the auxiliary parameters from the virtual first frequency domain resources, and then determines the first frequency domain resources.
  • the first frequency domain resources here are obtained from the first frequency domain resources. It is obtained by removing the frequency domain resource corresponding to the auxiliary parameter from the frequency domain resource corresponding to the indication information.
  • “remove” can be replaced with "deduct”, "remove” or “exclude”, and the specific name is not limited in the present invention.
  • the auxiliary parameter may include muting subcarrier spacing information, where the muting subcarrier spacing information indicates subcarrier information that cannot be used for resources in the first frequency domain.
  • the muting subcarrier spacing information indicates subcarrier information that cannot be used for resources in the first frequency domain.
  • the first frequency The domain resource indicates which subcarriers in the frequency domain resource corresponding to the information cannot be used for the first frequency domain resource.
  • the muted subcarrier interval information may include index information of muted subcarriers or information on the number of muted subcarriers.
  • the silent sub-carrier does not carry any information, and the amplitude is 0 after OFDM sampling.
  • the silent sub-carrier has zero power, which has no energy, which can reduce the difference between adjacent PRBs due to Doppler frequency offset. carrier interference.
  • the terminal device may determine, according to a preset rule or a network device instruction, that the k subcarriers calculated from the upper boundary and/or the lower boundary of the frequency domain resource corresponding to the first frequency domain resource indication information cannot be used for the first frequency domain resource.
  • the network device may send indication information to the terminal device for indicating that the muting subcarrier spacing information is applicable to the upper boundary, the lower boundary or the dual boundary (upper boundary and lower boundary).
  • the frequency domain resource corresponding to the first frequency domain resource indication information is PRB n (PRB n or the n+1 th PRB), and the muting subcarrier interval information indicates subcarriers 0, 1, and 2 and subcarriers 9, 10, and 10. If 11 cannot be used for the first frequency domain resource, the terminal device determines that the first frequency domain resource is subcarriers 3, 4, 5, 6, 7, and 8.
  • the frequency domain resource corresponding to the first frequency domain resource indication information is PRB n , and the muting subcarrier interval is a value of 2, then the terminal device can determine the upper boundary and /or 2 subcarriers calculated from the lower boundary cannot be used for the first frequency domain resource.
  • the above-mentioned muted subcarrier spacing information may also be referred to as "empty subcarriers" or “protected subcarriers” or “muted subcarrier information” or “unavailable subcarrier indication information", and the specific names are not limited in the present invention;
  • the muted subcarrier spacing information indicates the subcarrier information that cannot be used for the first frequency domain resource
  • the muted subcarrier spacing information indicates the subcarrier information that cannot be used for data transmission. It can be understood that by introducing the muting subcarrier spacing information, carrier interference between adjacent PRBs caused by Doppler frequency offset can be reduced, thereby improving system performance.
  • the second information and the auxiliary parameters may be sent through the same piece of information, for example, the network device sends the second information and the auxiliary parameters through the same message.
  • the second information and the auxiliary parameter may also be sent through different messages, for example, the network device sends the second information through message 1 and sends the auxiliary parameter through message 2.
  • message 1 and message 2 can be understood as radio resource control (radio resource control, RRC) message, medium access control control element (medium access control control element, MAC CE), or downlink control information (downlink control information, DCI) ) at least one of them.
  • RRC radio resource control
  • medium access control control element medium access control control element
  • DCI downlink control information
  • the network device sends third information to the terminal device.
  • the terminal device receives the third information sent by the network device, where the third information includes a parameter for determining the location of the target resource in the first frequency domain resource.
  • the third information may include various possible parameters for determining the position of the target resource in the frequency domain resource, which will be described below in conjunction with Example 1 and Example 2.
  • the third information includes at least one of the position information of the first subcarrier in the target resource, the number of subcarriers included in the target resource, and the frequency domain interval, where the frequency domain interval represents the distance between two adjacent subcarriers. interval.
  • the position information of the first subcarrier in the target resource may be an absolute value or a relative value.
  • the third information includes the absolute index value of the first subcarrier, and the terminal device can determine the position of the first subcarrier according to the index lookup table, for example, the relationship between the position of the first subcarrier and the corresponding index value As shown in Table 1; for another example, the third information includes the position information of the first subcarrier relative to the reference subcarrier, and the reference subcarrier may be preset by the protocol or indicated by the network device to the terminal device.
  • the number of subcarriers included in the target resource can be indicated by an index.
  • the terminal device can determine the number of subcarriers included in the target resource by looking up a table according to the index value of the number of subcarriers sent by the network device. , the relationship between the number of subcarriers included in the target resource and the corresponding index value is shown in Table 2 or Table 3, and which table to use may be predefined by the protocol or indicated by the network device.
  • the frequency domain interval can be 0 or one or more values: when the frequency domain interval is 0 value, it can be understood that the network device does not configure the frequency domain interval, and the subcarrier corresponding to the target resource is in the frequency domain.
  • the frequency domain interval is continuous; when the frequency domain interval is a value, the subcarriers corresponding to the target resource are distributed at equal frequency domain intervals, and the interval between subcarriers corresponding to two adjacent target resources is equal to the frequency domain interval;
  • the domain interval is multiple values, the subcarriers corresponding to the target resource are distributed at unequal frequency domain intervals; the number of frequency domain intervals indicated by the network is related to the number of subcarriers included in the target resource. For example, the network indicated frequency domain interval The number may be one less than the number of subcarriers included in the target resource.
  • index value The number of subcarriers included in the target resource 00 1 01 3 10 6 11 12
  • index value The number of subcarriers included in the target resource 00 1 01 4 10 8 11 12
  • the terminal device determines the target resource, it needs three parameters: the location information of the first subcarrier in the target resource, the number of subcarriers included in the target resource, and the frequency domain interval, but the three parameters can be obtained in the following way
  • the terminal device obtains it by itself or from a network device.
  • SIM subscriber identity module
  • the terminal device can be obtained by the terminal device through a preset subscriber identity module (SIM) card, or through a protocol preset, etc.; It saves communication resources or signaling overhead between the terminal device and the network device.
  • SIM subscriber identity module
  • the terminal device is obtained from the network device, it may be obtained through the third information.
  • the third information includes one or two of the three parameters of the first subcarrier location information, the number of subcarriers included in the target resource, and the frequency domain interval, the other parameters of the three parameters can be passed through.
  • the invention does not limit the acquisition by the terminal device itself or in other ways.
  • the third information includes the location information of the first subcarrier in the target resource and the subcarriers included in the target resource. number, frequency domain interval.
  • the first frequency domain resource indication information indicates one PRB, that is, the first frequency domain resource is 12 subcarriers
  • the first carrier position information indicates that the first subcarrier position is subcarrier 0, and the target resources include The number of subcarriers is 6, and the frequency domain interval is 2.
  • subcarrier 0, subcarrier 2, subcarrier 4, subcarrier 6, subcarrier 8, subcarrier 10 and subcarrier 12 can be obtained as target resources.
  • the terminal device indirectly determines the first frequency domain resource according to the first frequency domain resource indication information included in the second information and the pre-acquired muting subcarrier interval information
  • the third information includes the first frequency domain resource among the target resources.
  • Subcarrier location information and the number of subcarriers included in the target resource are from subcarriers 3 to 11.
  • Subcarrier 8 if the first subcarrier position information indicates that the first subcarrier position is subcarrier 3, and the number of subcarriers included in the target resource is 6, according to the above method, the section from subcarrier 2 to subcarrier 10 can be obtained Consecutive subcarriers are target resources.
  • Example a2 The third information includes location information of each subcarrier in the target resource in the first frequency domain resource.
  • the third information may indicate the position information of each subcarrier position in the target resource in the first frequency domain resource through a bitmap, wherein different bits in the bitmap are related to the subcarrier position in the first frequency domain resource.
  • the corresponding relationship between them may be preset.
  • the value of a bit is "1" it indicates that the position of the subcarrier corresponding to the bit can be used as the target resource; for example, as shown in Figure 6c, if the first frequency domain resource includes 12 subcarriers, the third information It can include 12 bits, and the 12 bits correspond to the 12 subcarriers of the first frequency domain resource.
  • the 12 subcarriers are numbered respectively from subcarrier 0 to subcarrier 11.
  • the first bit and the third bit of the 12 bits are The value of the 7th bit and the 11th bit is "1", which means that subcarrier 0, subcarrier 2, subcarrier 6 and subcarrier 10 are the target resources.
  • the first frequency domain resources are subcarriers 3, 4, 5, 6, 7, and 8.
  • the third information may include 6 subcarriers.
  • Bit 6 bits correspond to the 6 subcarriers of the first frequency domain resource respectively, if the value of the first bit, the third bit, and the sixth bit in the 6 bits is "1", it means that the corresponding subcarrier
  • the carrier is the target resource, that is, the subcarrier 3, the subcarrier 5, and the subcarrier 8 are the target resource.
  • the third information can be carried in a radio resource control (radio resource control, RRC) message, or a medium access control control element (medium access control control element, MAC CE), or downlink control information (downlink control information, DCI).
  • RRC radio resource control
  • MAC CE medium access control control element
  • DCI downlink control information
  • S603 may be executed before S602, or S602 and S603 may be executed simultaneously, or S601 may be executed after S603, and the order of S601, S602, and S603 is not limited in this embodiment of the present application.
  • the resource type is the first type
  • a target resource is determined, and the target resource is a discontinuous resource on the first frequency domain resource
  • the specific determination method is the same as that in S602 and S603 for the second information and the third The description and examples of the information will not be repeated here.
  • S605 Determine the number of bits included in the data carried by the target resource.
  • the terminal device may determine the number of bits of the data packet carried by the target resource through the following steps:
  • Step 1 Calculate the number of resource elements (Resource elements, REs) in each resource block (Physical resource block, PRB) in the scheduled time slot.
  • resource elements Resource elements, REs
  • Step 2 Calculate the total number of REs of the scheduling resources allocated to the terminal by the scheduled time slot, that is, the number of REs used for PUSCH transmission.
  • N RE min(156,N' RE ) ⁇ n PRB
  • n PRB is the number of PRBs allocated to the terminal.
  • Step 3 Calculate the number of information bits that can be transmitted (or the first parameter)
  • the first parameter is determined according to a scaling factor, where the scaling factor includes a frequency-domain scaling factor ⁇ and/or a time-domain scaling factor S.
  • the terminal device can determine the first parameter according to one of the following formulas:
  • N info ⁇ ⁇ N RE ⁇ R ⁇ Q m ⁇ ⁇ , or
  • N info S ⁇ N RE ⁇ R ⁇ Q m ⁇ ⁇ , or
  • N info ⁇ S ⁇ N RE ⁇ R ⁇ Q m ⁇
  • R is the code rate
  • Q m is the modulation mode
  • v is the number of layers or streams to be transmitted
  • N RE is the number of resource units used for the data transmission in a time slot.
  • Step 4 Calculate the Transport Block Size (TBS) according to the number of information bits (or the first parameter).
  • the terminal device sends or receives data according to the target resource, wherein the data is carried on the physical downlink shared channel PDSCH or the physical uplink shared channel PUSCH, it can be understood that the target resource is the physical downlink shared channel PDSCH or physical uplink shared channel PDSCH or physical uplink shared channel channel PUSCH.
  • the terminal device when preparing the data to be sent, can map the data to be sent to the subcarriers corresponding to the target resources according to the resource mapping type known in step S601, and map the data to be sent to the subcarriers corresponding to the target resources, and map the data to the subcarriers corresponding to the first frequency domain resource indication information.
  • the data may also be carried in the physical downlink control channel PDCCH or the physical uplink control channel PUCCH or other physical channels, which is not specifically limited in the present invention.
  • the terminal device sends or receives the demodulation reference signal DMRS according to the target resource while sending or receiving data according to the target resource.
  • the demodulation reference signal DMRS sequence length M ZC corresponding to the data is 2 or 3 or 4 or 6.
  • the sequence generation of the demodulation reference signal DMRS satisfies the following formula:
  • the first parameter is determined according to the DMRS sequence length M ZC and the group index u.
  • the first parameter The corresponding relationship between the DMRS sequence length M ZC and the group index u may be shown in Table 4 to Table 7. It should be noted that Tables 4 to 7 are only examples, the first parameter The table size of the corresponding relationship between the DMRS sequence length M ZC and the group index u, and the size of the numerical value in each table, are not limited in the present invention.
  • the terminal device determines a target resource, and the target resource is a continuous resource on the first frequency domain resource.
  • the terminal device may also determine the target resource according to the second information and the third information, where the second information is the first frequency domain resource indication information, and the third information includes the location information of the first subcarrier in the target resource,
  • the target resource includes at least one of the number of subcarriers and the frequency domain interval.
  • the descriptions about the second information and the third information are the same as those described in S602 and S603, and are not repeated here.
  • the resource type is the second type
  • after the terminal device determines the target resource it may execute according to S605 and S606, and the specific implementation is the same as above, which will not be repeated here.
  • the terminal device acquires the type of resource mapping on the first frequency domain resource, the terminal device determines the target resource from the first frequency domain resource, and maps the data to the target resource according to the type of resource mapping, thereby realizing The same data is received or sent using the target resource; in this way, by distinguishing the frequency domain resource mapping types, the frequency domain resource mapping is made more flexible, so as to better match the non-consecutive DMRS frequency domain resource positions and obtain better channel estimation performance.
  • the introduction of silent sub-carriers to determine the first frequency domain resource can effectively reduce the inter-sub-carrier interference between adjacent PRBs due to Doppler frequency offset, which is beneficial to improve system performance.
  • FIG. 7 is a schematic flowchart corresponding to a resource mapping method provided by an embodiment of the present application, as shown in FIG. 7 , including:
  • a terminal device acquires a subcarrier offset value.
  • subcarrier offset values there may be one or more subcarrier offset values, and the present application may not limit the specific number.
  • the terminal device may obtain the subcarrier offset value.
  • Implementation mode a1 The terminal device obtains from itself.
  • the terminal can be obtained by presetting a subscriber identity module (subscriber identity module, SIM) card, or by presetting a subcarrier offset value, etc.; using this method can save communication resources or information between the terminal device and the network device. order expenses.
  • SIM subscriber identity module
  • Implementation mode a2 The terminal device acquires the subcarrier offset value from the network device, that is, the terminal device receives the subcarrier offset value sent from the network device. Using this method can make the acquisition method of the subcarrier offset value more flexible.
  • the subcarrier offset value can be carried in various possible messages, such as a radio resource control (Radio Resource Control, RRC) message, or downlink control information (Downlink Control Information, DCI) or medium access control ( media access control, MAC) control element (control element, CE) or other possible messages, which are not specifically limited.
  • RRC Radio Resource Control
  • DCI Downlink Control Information
  • MAC media access control
  • CE control element
  • the network device sends second information to the terminal device, where the second information includes first frequency domain resource indication information.
  • S702 may refer to S602, which will not be repeated here.
  • S703 Determine a time domain resource corresponding to the first frequency domain resource, where the time domain resource includes M time slots.
  • S705 Determine the target resource corresponding to each time slot of the M time slots according to the target resource corresponding to the first time slot of the M time slots and the subcarrier offset value.
  • the terminal device offsets the entire target resource corresponding to the first time slot of the M time slots according to the predetermined rule according to the subcarrier offset value, and then determines the target resource corresponding to each time slot of the M time slots.
  • the examples c1, c2, and c3 are combined to illustrate:
  • the first subcarrier position information RE start (i) in the target resource corresponding to each of the M time slots satisfies the formula:
  • RE start represents the position information of the first subcarrier in the target resource corresponding to the first time slot in the M time slots
  • RE offset represents the offset value of the subcarrier
  • mod represents the modulo operation
  • the number of subcarriers included in the target resource corresponding to each of the M time slots is the number of subcarriers included in the target resource corresponding to the first time slot in the M time slots;
  • the interval between two adjacent subcarriers in the target resource corresponding to each of the M time slots is the distance between two adjacent subcarriers in the target resource corresponding to the first time slot in the M time slots. interval.
  • the nth The time slot and the n+2 time slot are in the same frequency domain position, and the n+1th time slot and the n+3 time slot are offset by a subcarrier relative to the nth time slot.
  • the first subcarrier position information RE start (i) in the target resource corresponding to each of the M time slots satisfies the formula:
  • RE start represents the position information of the first subcarrier in the target resource corresponding to the first time slot in the M time slots
  • RE offset represents the offset value of the subcarrier
  • mod represents the modulo operation
  • the number of subcarriers included in the target resource corresponding to each of the M time slots is the number of subcarriers included in the target resource corresponding to the first time slot in the M time slots;
  • the interval between two adjacent subcarriers in the target resource corresponding to each of the M time slots is the distance between two adjacent subcarriers in the target resource corresponding to the first time slot in the M time slots. interval.
  • the nth The time slot and the n+1 time slot are in the same frequency domain position, and the n+2th time slot and the n+3 time slot are offset by a subcarrier relative to the nth time slot.
  • the terminal device uses the subcarrier offset value and the multiple subcarrier offset values.
  • the sequence of using the offset values determines the position of the first subcarrier in the target resource corresponding to each of the M time slots.
  • the number of subcarriers included in the target resource corresponding to each of the M time slots is the number of subcarriers included in the target resource corresponding to the first time slot in the M time slots;
  • the interval between two adjacent subcarriers in the target resource corresponding to each of the M time slots is the distance between two adjacent subcarriers in the target resource corresponding to the first time slot in the M time slots. interval.
  • the subcarrier offset values are 0, 2, 3, and 1, in this order It acts on the nth time slot, the n+1th time slot, the n+2th time slot, and the n+3th time slot in turn. It can be seen from the figure that the n+1th time slot has 2 subcarriers relative to the nth time slot. Offset, the n+2th time slot is offset by 3 subcarriers relative to the nth time slot, and the n+4th time slot is offset by 1 subcarrier relative to the nth time slot.
  • the specific target resource position corresponding to the first time slot, the value of M, the subcarrier offset value, and the order of use of the subcarrier offset value may not be limited in this application.
  • the terminal device offsets the target resource corresponding to the first time slot of the M time slots as a whole according to a predetermined rule, and then determines the target resource corresponding to each time slot of the M time slots.
  • the period value is used to indicate the period to which the preset rule applies, and the period value is represented by T; optionally, the period value T may be a positive integer greater than or equal to 2, or the period value may be greater than or equal to 2 and less than or equal to The positive integer of RE total , the specific value may not be limited in the present invention.
  • the terminal device may acquire it from itself or from a network device, which will not be repeated here.
  • the first subcarrier position information RE start (i) in the target resource corresponding to each of the M time slots satisfies the formula:
  • RE start represents the position information of the first subcarrier in the target resource corresponding to the first time slot in the M time slots
  • RE offset represents the offset value of the subcarrier
  • mod represents the modulo operation
  • Represents rounded down i represents the time slot index in one radio frame or represents the time slot index in M time slots
  • RE total represents the number of subcarriers included in the first frequency domain resource
  • T is greater than or a positive integer equal to 2;
  • the number of subcarriers included in the target resource corresponding to each of the M time slots is the number of subcarriers included in the target resource corresponding to the first time slot in the M time slots;
  • the interval between two adjacent subcarriers in the target resource corresponding to each of the M time slots is the interval between two adjacent subcarriers in the target resource corresponding to the first time slot in the M time slots. interval.
  • the value of RE total can be equal to (12-the number of subcarriers included in the muting subcarrier spacing information), for example, when the number of subcarriers included in the muting subcarrier spacing information is 4, the value of RE total is (12- 4), that is, the RE total value is 8, correspondingly, the RE total in the above formula is equal to 8.
  • S706 Determine the number of bits included in the data carried by the target resource.
  • the terminal device obtains the subcarrier offset value, and then when the terminal device determines to transmit or receive the same data through multiple time slots, it can obtain the subcarrier offset value according to the target resource on the first time slot of the multiple time slots and the subcarrier offset value.
  • Shift value determine the target resource on each of the multiple time slots, and map the data to the target resource according to the type of resource mapping, and then send or receive the same data through multiple time slots on the determined target resource;
  • the frequency domain resource mapping can be made more flexible and better channel estimation performance can be obtained;
  • the subcarrier offset value it is beneficial to enhance the interference randomization performance, Thus, the probability of continuous strong interference between neighboring cells is reduced.
  • the present application further provides a communication device, the communication device is configured to execute the above method process.
  • FIG. 11 shows a possible exemplary block diagram of the apparatus involved in the embodiment of the present application.
  • the apparatus 1100 may include: a processing unit 1102 and a communication unit 1103 .
  • the processing unit 1102 is used to control and manage the actions of the device 1100 .
  • the communication unit 1103 is used to support the communication between the apparatus 1100 and other devices.
  • the communication unit 1103 is also referred to as a transceiving unit, and may include a receiving unit and/or a sending unit, which are respectively configured to perform receiving and sending operations.
  • the apparatus 1100 may further include a storage unit 1101 for storing program codes and/or data of the apparatus 1100 .
  • the hardware element of the communication unit or the transceiver unit may be a receiver or a transceiver, and the hardware element of the processing unit may be a processor.
  • the apparatus 1100 may be the terminal device in the foregoing embodiments, or may also be a chip set in the terminal device, and the apparatus 1100 may execute the processes corresponding to the terminal device in the foregoing method embodiments.
  • the processing unit 1102 can support the apparatus 1100 to perform the actions of the terminal device in each method example above.
  • the processing unit 1102 mainly performs the internal actions of the terminal device in the method example, and the communication unit 1103 may support the communication between the apparatus 1100 and other devices.
  • the processing unit 1102 is configured to obtain first information, where the first information is used to indicate a resource mapping type on the first frequency domain resource, where the first frequency domain resource is included in the In a physical resource block PRB;
  • the processing unit is further configured to, when the resource mapping type is the first type, determine a target resource, where the target resource is a discontinuous resource on the first frequency domain resource;
  • a transceiver unit configured to send or receive data according to the target resource.
  • the processing unit is specifically configured to determine the target resource according to the second information and the third information;
  • the second information includes first frequency domain resource indication information
  • the third information includes the location information of the first subcarrier in the target resource, the number of subcarriers included in the target resource, the frequency domain interval At least one, the frequency domain interval represents an interval between two adjacent subcarriers.
  • the processing unit is also used to,
  • the number of bits included in the data is determined.
  • the scaling factor includes a frequency-domain scaling factor ⁇ and/or a time-domain scaling factor S; the first parameter N info satisfies one of the following formulas:
  • N info ⁇ ⁇ N RE ⁇ R ⁇ Q m ⁇ ⁇ , or
  • N info S ⁇ N RE ⁇ R ⁇ Q m ⁇ ⁇ , or
  • N info ⁇ S ⁇ N RE ⁇ R ⁇ Q m ⁇
  • R is the code rate
  • Q m is the modulation mode
  • v is the number of layers or streams to be transmitted
  • N RE is the number of resource units used for the data transmission in a time slot.
  • the processing unit is also used for,
  • the time domain resource includes M time slots, where M is a positive integer
  • the target resource corresponding to each of the M time slots is determined.
  • the processing unit is specifically used for:
  • the position information of the first subcarrier in the target resource corresponding to the first time slot of the M time slots, and the number of subcarriers included in the target resource corresponding to the first time slot of the M time slots , the interval between two adjacent subcarriers in the target resource corresponding to the first time slot of the M time slots and the subcarrier offset value determine the target corresponding to each time slot of the M time slots resource.
  • the first subcarrier position information RE start (i) in the target resource corresponding to each of the M time slots satisfies the formula:
  • RE start represents the position information of the first subcarrier in the target resource corresponding to the first time slot in the M time slots
  • RE offset represents the offset value of the subcarrier
  • mod represents the modulo operation
  • the number of subcarriers included in the target resource corresponding to each of the M time slots is the number of subcarriers included in the target resource corresponding to the first time slot in the M time slots;
  • the interval between two adjacent subcarriers in the target resource corresponding to each of the M time slots is the interval between two adjacent subcarriers in the target resource corresponding to the first time slot in the M time slots. interval between subcarriers.
  • the data is carried on the physical downlink shared channel PDSCH or the physical uplink shared channel PUSCH.
  • the sequence length M ZC of the demodulation reference signal DMRS corresponding to the data is 2 or 3 or 4 or 6.
  • the sequence generation of the demodulation reference signal DMRS satisfies the formula:
  • the first parameter is determined according to the DMRS sequence length M ZC and the group index u
  • the processing unit is specifically configured to acquire the first information from itself;
  • the transceiver unit is specifically configured to receive the first information from the network device.
  • the processing unit is specifically configured to, when the resource mapping type is the second type, determine a target resource on the first frequency domain resource, where the target resource is on the first frequency domain resource continuous resource.
  • the second information is carried in radio resource control signaling or medium access control signaling or downlink control signaling;
  • the third information is carried in radio resource control signaling, medium access control signaling or downlink control signaling.
  • the apparatus 1100 may be the network device in the foregoing embodiment, or may also be a chip provided in the network device.
  • the apparatus 1100 is configured to execute the process corresponding to the network device in the foregoing method embodiments.
  • the processing unit 1102 may support the apparatus 1100 to perform the actions of the network device in each method example above. Alternatively, the processing unit 1102 mainly performs the internal actions of the network device in the method example, and the communication unit 1103 may support the communication between the apparatus 1100 and other devices.
  • the processing unit 1102 is configured to: send first information, where the first information is used to indicate a resource mapping type on a first frequency domain resource, where the first frequency domain resource is included in a physical In the resource block PRB;
  • the processing unit is further configured to, when the resource mapping type is the first type, determine a target resource, where the target resource is a discontinuous resource on the first frequency domain resource;
  • a transceiver unit configured to receive or send data according to the target resource.
  • the processing unit is specifically configured to determine the target resource according to the second information and the third information;
  • the second information includes first frequency domain resource indication information
  • the third information includes the location information of the first subcarrier in the target resource, the number of subcarriers included in the target resource, the frequency domain interval At least one, the frequency domain interval represents an interval between two adjacent subcarriers.
  • the processing unit is also used for,
  • the number of bits included in the data is determined.
  • the scaling factor includes a frequency-domain scaling factor ⁇ and/or a time-domain scaling factor S; the first parameter N info satisfies one of the following formulas:
  • N info ⁇ ⁇ N RE ⁇ R ⁇ Q m ⁇ ⁇ , or
  • N info S ⁇ N RE ⁇ R ⁇ Q m ⁇ ⁇ , or
  • N info ⁇ S ⁇ N RE ⁇ R ⁇ Q m ⁇
  • R is the code rate
  • Q m is the modulation mode
  • v is the number of layers or streams to be transmitted
  • N RE is the number of resource units used for the data transmission in a time slot.
  • the processing unit is also used for,
  • the time domain resource includes M time slots, where M is a positive integer
  • the target resource corresponding to each of the M time slots is determined.
  • the processing unit is specifically used to:
  • the position information of the first subcarrier in the target resource corresponding to the first time slot of the M time slots, and the number of subcarriers included in the target resource corresponding to the first time slot of the M time slots , the interval between two adjacent subcarriers in the target resource corresponding to the first time slot of the M time slots and the subcarrier offset value determine the target corresponding to each time slot of the M time slots resource.
  • the first subcarrier position information RE start (i) in the target resource corresponding to each of the M time slots satisfies the formula:
  • RE start represents the position information of the first subcarrier in the target resource corresponding to the first time slot in the M time slots
  • RE offset represents the offset value of the subcarrier
  • mod represents the modulo operation
  • the number of subcarriers included in the target resource corresponding to each of the M time slots is the number of subcarriers included in the target resource corresponding to the first time slot in the M time slots;
  • the interval between two adjacent subcarriers in the target resource corresponding to each of the M time slots is the interval between two adjacent subcarriers in the target resource corresponding to the first time slot in the M time slots. interval between subcarriers.
  • the data is carried on the physical downlink shared channel PDSCH or the physical uplink shared channel PUSCH.
  • the sequence length M ZC of the demodulation reference signal DMRS corresponding to the data is 2 or 3 or 4 or 6.
  • the sequence generation of the demodulation reference signal DMRS satisfies the formula:
  • the first parameter is determined according to the DMRS sequence length M ZC and the group index u.
  • the processing unit is specifically used to:
  • a target resource on the first frequency domain resource is determined, and the target resource is a continuous resource on the first frequency domain resource.
  • the second information is carried in radio resource control signaling or medium access control signaling or downlink control signaling;
  • the third information is carried in radio resource control signaling, medium access control signaling or downlink control signaling.
  • each unit in the above apparatus can be realized in the form of software calling through the processing element; also can all be realized in the form of hardware; some units can also be realized in the form of software calling through the processing element, and some units can be realized in the form of hardware.
  • each unit can be a separately established processing element, or can be integrated in a certain chip of the device to be implemented, and can also be stored in the memory in the form of a program, which can be called by a certain processing element of the device and execute the unit's processing. Function.
  • each operation of the above method or each of the above units may be implemented by an integrated logic circuit of hardware in the processor element or implemented in the form of software being invoked by the processing element.
  • a unit in any of the above apparatuses may be one or more integrated circuits configured to implement the above methods, eg, one or more application specific integrated circuits (ASICs), or, one or more Multiple microprocessors (digital singnal processors, DSPs), or, one or more field programmable gate arrays (FPGAs), or a combination of at least two of these integrated circuit forms.
  • ASICs application specific integrated circuits
  • DSPs digital singnal processors
  • FPGAs field programmable gate arrays
  • a unit in the apparatus can be implemented in the form of a processing element scheduler
  • the processing element can be a processor, such as a general-purpose central processing unit (CPU), or other processors that can invoke programs.
  • these units can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • SOC system-on-a-chip
  • the above receiving unit is an interface circuit of the device for receiving signals from other devices.
  • the receiving unit is an interface circuit used by the chip to receive signals from other chips or devices.
  • the above sending unit is an interface circuit of the device, used for sending signals to other devices.
  • the sending unit is an interface circuit used by the chip to send signals to other chips or devices.
  • FIG. 12 is a schematic structural diagram of a terminal device according to an embodiment of the present application. It may be the terminal device in the above embodiment, and is used to implement the operation of the terminal device in the above embodiment.
  • the terminal device includes: an antenna 1210 , a radio frequency part 1220 , and a signal processing part 1230 .
  • the antenna 1210 is connected to the radio frequency part 1220 .
  • the radio frequency part 1220 receives the information sent by the network device through the antenna 1210, and sends the information sent by the network device to the signal processing part 1230 for processing.
  • the signal processing part 1230 processes the information of the terminal equipment and sends it to the radio frequency part 1220
  • the radio frequency part 1220 processes the information of the terminal equipment and sends it to the network equipment through the antenna 1210.
  • the signal processing part 1230 may include a modulation and demodulation subsystem, which is used to implement the processing of each communication protocol layer of the data; it may also include a central processing subsystem, which is used to implement the processing of the terminal device operating system and the application layer; in addition, it can also Including other subsystems, such as multimedia subsystem, peripheral subsystem, etc., wherein the multimedia subsystem is used to realize the control of the terminal equipment camera, screen display, etc., and the peripheral subsystem is used to realize the connection with other devices.
  • the modem subsystem can be a separate chip.
  • the above apparatus for terminal equipment may be located in the modem subsystem.
  • the modem subsystem may include one or more processing elements 1231, including, for example, a host CPU and other integrated circuits.
  • the modulation and demodulation subsystem may further include a storage element 1232 and an interface circuit 1233 .
  • the storage element 1232 is used to store data and programs, but the program used to execute the method performed by the terminal device in the above method may not be stored in the storage element 1232, but in a memory outside the modulation and demodulation subsystem, When used, the modem subsystem is loaded for use.
  • Interface circuit 1233 is used to communicate with other subsystems.
  • the above apparatus for terminal equipment may be located in a modulation and demodulation subsystem, and the modulation and demodulation subsystem may be implemented by a chip, and the chip includes at least one processing element and an interface circuit, wherein the processing element is used to execute any one of the above executions of the terminal equipment.
  • the interface circuit is used to communicate with other devices.
  • the unit for the terminal device to implement each step in the above method may be implemented in the form of a processing element scheduler.
  • an apparatus for a terminal device includes a processing element and a storage element, and the processing element calls the program stored in the storage element to Execute the method executed by the terminal device in the above method embodiments.
  • the storage element may be a storage element in which the processing element is on the same chip, that is, an on-chip storage element.
  • the program for executing the method performed by the terminal device in the above method may be in a storage element on a different chip from the processing element, that is, an off-chip storage element.
  • the processing element calls or loads the program from the off-chip storage element to the on-chip storage element, so as to call and execute the method performed by the terminal device in the above method embodiments.
  • the unit for the terminal device to implement each step in the above method may be configured as one or more processing elements, and these processing elements are provided on the modulation and demodulation subsystem, and the processing element here may be an integrated circuit, For example: one or more ASICs, or, one or more DSPs, or, one or more FPGAs, or a combination of these types of integrated circuits. These integrated circuits can be integrated together to form chips.
  • the units of the terminal device for implementing each step in the above method may be integrated together and implemented in the form of a system-on-a-chip (SOC), and the SOC chip is used to implement the above method.
  • SOC system-on-a-chip
  • At least one processing element and a storage element may be integrated in the chip, and the method executed by the above terminal device may be implemented in the form of a program stored in the storage element being invoked by the processing element; or, at least one integrated circuit may be integrated in the chip to implement the above terminal
  • the above apparatus for a terminal device may include at least one processing element and an interface circuit, where the at least one processing element is configured to execute any method performed by the terminal device provided in the above method embodiments.
  • the processing element can execute part or all of the steps performed by the terminal device in the first way: by calling the program stored in the storage element; or in the second way: by combining the instructions with the integrated logic circuit of the hardware in the processor element Part or all of the steps performed by the terminal device may be performed in the manner of the first method; of course, some or all of the steps performed by the terminal device may also be performed in combination with the first manner and the second manner.
  • the processing elements here are the same as those described above, and may be a general-purpose processor, such as a CPU, or one or more integrated circuits configured to implement the above method, such as: one or more ASICs, or one or more microprocessors DSP, or, one or more FPGAs, etc., or a combination of at least two of these integrated circuit forms.
  • a general-purpose processor such as a CPU
  • one or more integrated circuits configured to implement the above method, such as: one or more ASICs, or one or more microprocessors DSP, or, one or more FPGAs, etc., or a combination of at least two of these integrated circuit forms.
  • the storage element may be one memory or a collective term for multiple storage elements.
  • FIG. 13 is a schematic structural diagram of a network device according to an embodiment of the present application. It is used to implement the operation of the network device (such as the second network device) in the above embodiments.
  • the network device includes: an antenna 1301 , a radio frequency device 1302 , and a baseband device 1303 .
  • the antenna 1301 is connected to the radio frequency device 1302 .
  • the radio frequency device 1302 receives the information sent by the terminal device through the antenna 1301, and sends the information sent by the terminal device to the baseband device 1303 for processing.
  • the baseband device 1303 processes the information of the terminal device and sends it to the radio frequency device 1302
  • the radio frequency device 1302 processes the information of the terminal device and sends it to the terminal device through the antenna 1301 .
  • Baseband device 1303 may include one or more processing elements 13031, including, for example, a host CPU and other integrated circuits.
  • the baseband device 1303 may further include a storage element 13032 and an interface 13033, the storage element 13032 is used for storing programs and data; the interface 13033 is used for exchanging information with the radio frequency device 1302, such as a common public radio interface (common public radio interface) , CPRI).
  • the above apparatus for network equipment may be located in the baseband apparatus 1303, for example, the above apparatus for network equipment may be a chip on the baseband apparatus 1303, the chip including at least one processing element and an interface circuit, wherein the processing element is used to execute the above network Each step of any one of the methods performed by the device, the interface circuit is used to communicate with other devices.
  • the unit for the network device to implement each step in the above method may be implemented in the form of a processing element scheduler, for example, an apparatus for a network device includes a processing element and a storage element, and the processing element calls the program stored in the storage element to The method performed by the network device in the above method embodiment is performed.
  • the storage element may be a storage element in which the processing element is located on the same chip, that is, an on-chip storage element, or a storage element that is located on a different chip from the processing element, that is, an off-chip storage element.
  • the unit of the network device implementing each step in the above method may be configured as one or more processing elements, these processing elements are provided on the baseband device, and the processing elements here may be integrated circuits, for example: a or ASICs, or one or more DSPs, or one or more FPGAs, or a combination of these types of integrated circuits. These integrated circuits can be integrated together to form chips.
  • the units of the network device for implementing each step in the above method may be integrated together and implemented in the form of a system-on-a-chip (SOC), for example, the baseband device includes the SOC chip for implementing the above method.
  • SOC system-on-a-chip
  • the baseband device includes the SOC chip for implementing the above method.
  • At least one processing element and a storage element may be integrated in the chip, and the method executed by the above network device may be implemented in the form of a program stored in the storage element being invoked by the processing element; or, at least one integrated circuit may be integrated in the chip to implement the above network
  • the above apparatus for a network device may include at least one processing element and an interface circuit, where the at least one processing element is configured to execute any method performed by the network device provided in the above method embodiments.
  • the processing element may execute part or all of the steps performed by the network device in the first manner: that is, by calling the program stored in the storage element; or in the second manner: that is, combining the instructions with the integrated logic circuit of the hardware in the processor element part or all of the steps performed by the network device; of course, part or all of the steps performed by the above network device may also be performed in combination with the first and second methods.
  • the processing elements here are the same as those described above, and may be a general-purpose processor, such as a CPU, or one or more integrated circuits configured to implement the above method, such as: one or more ASICs, or one or more microprocessors DSP, or, one or more FPGAs, etc., or a combination of at least two of these integrated circuit forms.
  • a general-purpose processor such as a CPU
  • one or more integrated circuits configured to implement the above method, such as: one or more ASICs, or one or more microprocessors DSP, or, one or more FPGAs, etc., or a combination of at least two of these integrated circuit forms.
  • the storage element may be one memory or a collective term for multiple storage elements.
  • the above-mentioned embodiments it may be implemented in whole or in part by software, hardware, firmware or any combination thereof.
  • software it can be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present invention are generated.
  • the computer may be a general purpose computer, special purpose computer, computer network, or other programmable device.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server, or data center Transmission to another website site, computer, server, or data center is by wire (eg, coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, or the like that includes an integration of one or more available media.
  • the usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVD), or semiconductor media (eg, Solid State Disk (SSD)), and the like.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
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Abstract

La présente demande se rapporte au domaine technique des communications. L'invention divulgue un procédé et un appareil de communication. Dans le procédé, un dispositif terminal obtient des premières informations, les premières informations étant utilisées pour indiquer un type de mappage de ressources sur une première ressource de domaine fréquentiel, la première ressource de domaine fréquentiel étant incluse dans un bloc de ressources physiques (PRB), lorsque le type de ressource de domaine fréquentiel est un premier type, pour déterminer une ressource cible et pour envoyer ou recevoir des données en utilisant la ressource, la ressource cible étant une ressource qui est discontinue sur la première ressource de domaine fréquentiel. En utilisant le procédé, une position de ressource de domaine fréquentiel de signal DMRS peut être mieux adaptée, une compatibilité de protocole est assurée et une meilleure performance d'estimation de canal peut être obtenue. De plus, le type de mappage de ressources sur la première ressource de domaine fréquentiel est distingué et différents modes de mappage de ressources sur la première ressource de domaine fréquentiel peuvent être fournis pour le dispositif terminal de telle sorte que le mappage de ressources dans le domaine fréquentiel soit plus flexible.
PCT/CN2021/072566 2021-01-18 2021-01-18 Procédé et appareil de communication WO2022151500A1 (fr)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105898872A (zh) * 2016-03-31 2016-08-24 电信科学技术研究院 一种上行传输方法及装置
US20180006864A1 (en) * 2015-01-12 2018-01-04 Lg Electronics Inc. Method for transmitting dmrs for narrow band transmission, and mtc device
CN109803411A (zh) * 2017-11-17 2019-05-24 维沃移动通信有限公司 资源映射方法、确定方法、网络侧设备及用户终端
CN110476390A (zh) * 2017-03-31 2019-11-19 At&T知识产权一部有限合伙公司 相关申请的交叉引用
CN111357352A (zh) * 2017-11-17 2020-06-30 株式会社Ntt都科摩 用户终端以及无线通信方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180006864A1 (en) * 2015-01-12 2018-01-04 Lg Electronics Inc. Method for transmitting dmrs for narrow band transmission, and mtc device
CN105898872A (zh) * 2016-03-31 2016-08-24 电信科学技术研究院 一种上行传输方法及装置
CN110476390A (zh) * 2017-03-31 2019-11-19 At&T知识产权一部有限合伙公司 相关申请的交叉引用
CN109803411A (zh) * 2017-11-17 2019-05-24 维沃移动通信有限公司 资源映射方法、确定方法、网络侧设备及用户终端
CN111357352A (zh) * 2017-11-17 2020-06-30 株式会社Ntt都科摩 用户终端以及无线通信方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NTT DOCOMO, INC.: "Evaluation Methodology and Required Changes on NR from 52.6 to 71 GHz", 3GPP DRAFT; R1-2006725, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20200817 - 20200828, 7 August 2020 (2020-08-07), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051915455 *

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