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WO2025138181A1 - Procédé d'indication de puissance, dispositif terminal, et dispositif de réseau - Google Patents

Procédé d'indication de puissance, dispositif terminal, et dispositif de réseau Download PDF

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Publication number
WO2025138181A1
WO2025138181A1 PCT/CN2023/143473 CN2023143473W WO2025138181A1 WO 2025138181 A1 WO2025138181 A1 WO 2025138181A1 CN 2023143473 W CN2023143473 W CN 2023143473W WO 2025138181 A1 WO2025138181 A1 WO 2025138181A1
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WO
WIPO (PCT)
Prior art keywords
dmrs
power
terminal device
indication information
information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2023/143473
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English (en)
Chinese (zh)
Inventor
史志华
李德新
田文强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Oppo Mobile Telecommunications Corp Ltd
Original Assignee
Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to PCT/CN2023/143473 priority Critical patent/WO2025138181A1/fr
Publication of WO2025138181A1 publication Critical patent/WO2025138181A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/18—TPC being performed according to specific parameters

Definitions

  • the present application relates to the field of communications, and more specifically, to a power indication method, a terminal device, and a network device.
  • DMRS demodulation reference signal
  • RE resource element
  • the embodiments of the present application provide a power indication method, a terminal device, and a network device, which can flexibly adjust the DMRS transmission power according to different situations, so as to better match the current transmission environment and requirements and improve performance.
  • the present application provides a power indication method, including:
  • the first terminal device receives first indication information, where the first indication information indicates the first DMRS and/or power information of the first DMRS;
  • the first terminal device sends and/or receives data according to the first indication information.
  • the present application provides a power indication method, including:
  • the first network device or the second terminal device sends first indication information, where the first indication information indicates the first DMRS and/or power information of the first DMRS.
  • the present application provides a first terminal device, including:
  • the first transceiver module is used to receive first indication information, where the first indication information indicates a first DMRS and/or power information of the first DMRS; and send and/or receive data according to the first indication information.
  • An embodiment of the present application provides a first network device, including:
  • the second transceiver module is used to send first indication information, where the first indication information indicates the first DMRS and/or power information of the first DMRS.
  • the embodiment of the present application provides a second terminal device, including:
  • the third transceiver module is used to send first indication information, where the first indication information indicates the first DMRS and/or power information of the first DMRS.
  • the embodiment of the present application provides a communication device, including a processor, a memory and a transceiver.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory and control the transceiver so that the device executes the above-mentioned power indication method.
  • An embodiment of the present application provides a chip for implementing the above-mentioned power indication method.
  • the chip includes: a processor, which is used to call and run a computer program from a memory, so that a device equipped with the chip executes the above-mentioned power indication method.
  • An embodiment of the present application provides a computer-readable storage medium for storing a computer program.
  • the computer program When the computer program is executed by a device, the device executes the above-mentioned power indication method.
  • An embodiment of the present application provides a computer program product, including computer program instructions, which enable a computer to execute the above-mentioned power indication method.
  • An embodiment of the present application provides a computer program, which, when executed on a computer, enables the computer to execute the above-mentioned power indication method.
  • the embodiment of the present application uses the first indication information to indicate the power information of the first DMRS, so that the DMRS transmission power can be flexibly adjusted according to different situations, so as to better match the current transmission environment and requirements and improve performance.
  • FIG. 1 exemplarily shows a communication system 100 .
  • FIG. 2 is a schematic flow chart of a power indication method 200 according to an embodiment of the present application.
  • FIG3 is a schematic flowchart of a power indication method 300 according to an embodiment of the present application.
  • FIG. 4 is a schematic block diagram of a first terminal device 400 according to an embodiment of the present application.
  • FIG5 is a schematic block diagram of a first network device 500 according to an embodiment of the present application.
  • FIG6 is a schematic block diagram of a second terminal device 600 according to an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a communication device 700 according to an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a chip 800 according to an embodiment of the present application.
  • LTE Long Term Evolution
  • LTE-A Advanced long term evolution
  • NR New Radio
  • NR system evolution system LTE on unlicensed spectrum
  • LTE-U LTE on unlicensed spectrum
  • NR-based access to unlicensed spectrum NR-U
  • NTN Non-Terrestrial Networks
  • UMTS Universal Mobile Telecommunication System
  • WLAN Wireless Local Area Networks
  • WiFi fifth-generation communication
  • 5G fifth-generation communication
  • D2D device to device
  • M2M machine to machine
  • MTC machine type communication
  • V2V vehicle to vehicle
  • V2X vehicle to everything
  • the communication system in the embodiment of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, or a standalone (SA) networking scenario.
  • CA carrier aggregation
  • DC dual connectivity
  • SA standalone
  • the communication system in the embodiment of the present application can be applied to an unlicensed spectrum, wherein the unlicensed spectrum can also be considered as a shared spectrum; or, the communication system in the embodiment of the present application can also be applied to an authorized spectrum, wherein the authorized spectrum can also be considered as an unshared spectrum.
  • the terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent or user device, etc.
  • UE user equipment
  • the terminal device can be a station (STAION, ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in the next generation communication system such as the NR network, or a terminal device in the future evolved Public Land Mobile Network (PLMN) network, etc.
  • STAION, ST in a WLAN
  • a cellular phone a cordless phone
  • Session Initiation Protocol (SIP) phone Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • PDA Personal Digital Assistant
  • the terminal device can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can also be deployed on the water surface (such as ships, etc.); it can also be deployed in the air (for example, on airplanes, balloons and satellites, etc.).
  • the terminal device may be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, etc.
  • VR virtual reality
  • AR augmented reality
  • the terminal device may also be a wearable device.
  • Wearable devices may also be referred to as wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, such as glasses, gloves, watches, clothing, and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also powerful functions achieved through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-sized, and fully or partially independent of smartphones, such as smart watches or smart glasses, as well as devices that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various types of smart bracelets and smart jewelry for vital sign monitoring.
  • the network device may be a device for communicating with a mobile device
  • the network device may be an access point (AP) in a WLAN, an evolved base station (eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and a network device (gNB) in an NR network, or a network device in a future evolved PLMN network, or a network device in an NTN network, etc.
  • the network device may have a mobile characteristic, for example, the network device may be a mobile device.
  • the network device may be a satellite or a balloon station.
  • the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc.
  • the network device may also be a base station set up in a location such as land or water.
  • a network device can provide services for a cell, and a terminal device communicates with the network device through transmission resources (e.g., frequency domain resources, or spectrum resources) used by the cell.
  • the cell can be a cell corresponding to a network device (e.g., a base station).
  • the cell can belong to a macro base station or a base station corresponding to a small cell.
  • the small cells here may include: metro cells, micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
  • Fig. 1 exemplarily shows a communication system 100.
  • the communication system includes a network device 110 and two terminal devices 120.
  • the communication system 100 may include multiple network devices 110, and each network device 110 may include other number of terminal devices 120 within its coverage area, which is not limited in the embodiment of the present application.
  • the communication system 100 may also include other network entities such as a Mobility Management Entity (MME) and an Access and Mobility Management Function (AMF), but this is not limited to the embodiments of the present application.
  • MME Mobility Management Entity
  • AMF Access and Mobility Management Function
  • the network equipment may include access network equipment and core network equipment. That is, the wireless communication system also includes multiple core networks for communicating with the access network equipment.
  • the access network equipment may be an evolutionary base station (evolutional node B, referred to as eNB or e-NodeB) macro base station, micro base station (also called “small base station”), pico base station, access point (AP), transmission point (TP) or new generation Node B (gNodeB) in a long-term evolution (LTE) system, a next-generation (mobile communication system) (next radio, NR) system or an authorized auxiliary access long-term evolution (LAA-LTE) system.
  • eNB evolutionary base station
  • AP access point
  • TP transmission point
  • gNodeB new generation Node B
  • LTE long-term evolution
  • NR next-generation
  • LAA-LTE authorized auxiliary access long-term evolution
  • the device with communication function in the network/system in the embodiment of the present application can be called a communication device.
  • the communication device may include a network device and a terminal device with communication function, and the network device and the terminal device may be specific devices in the embodiment of the present application, which will not be repeated here; the communication device may also include other devices in the communication system, such as other network entities such as a network controller and a mobile management entity, which is not limited in the embodiment of the present application.
  • the "indication" mentioned in the embodiments of the present application can be a direct indication, an indirect indication, or an indication of an association relationship.
  • a indicates B which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association relationship between A and B.
  • corresponding may indicate a direct or indirect correspondence between two items, or an association relationship between the two items, or a relationship between indication and being indicated, configuration and being configured, and the like.
  • the basic workflow may include the following steps:
  • the bit stream information to be transmitted undergoes channel coding (and possibly corresponding rate matching) to obtain coded bits, which are then modulated to obtain modulation symbols (for example, the modulation may adopt one or more of Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK), 16-bit Quadrature Amplitude Modulation (QAM), 64QAM, 256QAM, 512QAM, 1024QAM, 2048QAM, 4096QAM).
  • BPSK Binary Phase Shift Keying
  • QPSK Quadrature Phase Shift Keying
  • QAM 16-bit Quadrature Amplitude Modulation
  • 64QAM 64QAM
  • 256QAM 256QAM
  • 512QAM 1024QAM
  • 2048QAM 2048QAM
  • 4096QAM 4096QAM
  • the modulation symbols and demodulation reference signals are inserted into the corresponding time-frequency resources (for example, into the corresponding resource elements (RE)), and then processed to obtain orthogonal frequency division multiplexing (OFDM) symbols, or single carrier frequency division multiple access (SC-FDMA) symbols, or other forms of multi-carrier symbols.
  • OFDM orthogonal frequency division multiplexing
  • SC-FDMA single carrier frequency division multiple access
  • the receiver measures the DMRS channel estimation, demodulates the modulation symbols, and then performs channel decoding to obtain the transmitted bits.
  • the above steps can be combined for iteration (for example, the information obtained by the decoding module can be used in the module including the channel estimation and/or in the module including the modulation symbol demodulation), and it is not necessarily in the strict order above.
  • the above process is similar for downlink transmission (DL transmission), that is, transmission from the network to the terminal, uplink transmission (UL transmission), that is, transmission from the terminal to the network, and sidelink transmission (SL transmission), that is, transmission between terminals.
  • DL transmission downlink transmission
  • UL transmission uplink transmission
  • SL transmission sidelink transmission
  • the transmission here can be both data transmission and control information transmission.
  • PDSCH physical downlink shared channel
  • PUSCH physical uplink shared channel
  • PSSCH physical sidelink shared channel
  • PDCH physical downlink control channel
  • PUCCH physical uplink control channel
  • PSCCH physical sidelink control channel
  • PSCCH physical sidelink feedback channel
  • PSFCH Physical Sidelink Broadcast Channel
  • PSBCH Physical Sidelink Broadcast Channel
  • the DMRS of the control channel i.e., the channel for transmitting control information
  • the design of DMRS will be more conservative, that is, it can adapt to various environments of the wireless channel.
  • the data channel i.e., the channel for transmitting data
  • different DMRS densities and/or patterns are often designed.
  • the system configures or instructs the receiving end which DMRS to use according to the current wireless channel environment.
  • DMRS and data occupy different REs respectively (i.e., there is no overlap in RE time-frequency resources). That is to say, at one RE position, DMRS can be mapped, or data can be mapped, but DMRS and data cannot be mapped at the same time. Therefore, data and DMRS are orthogonal in time-frequency resources (i.e., there is no overlap).
  • DMRS is often required to occupy more symbols in the time domain, that is, DMRS needs to occupy more RE resources, and accordingly, the RE resources available for data will be reduced. It can be seen that when the total time-frequency transmission resources are certain, the increase in resource overhead required for the pilot (such as DMRS) means that the resources used to transmit data are reduced, thereby reducing the data transmission rate.
  • an advanced receiver such as an iterative receiver, an artificial intelligence/machine learning (AI/ML) receiver
  • AI/ML artificial intelligence/machine learning
  • the AI/ML receiver can adopt various methods, such as a deep learning algorithm, and can be implemented by one or a combination of a fully connected network (FCN, Fully Convolutional Networks), a convolutional neural network (CNN, Convolutional Neural Network), a recurrent neural network (RNN Recurrent Neural Networks,), and a transformer neural network architecture.
  • FCN Fully Convolutional Networks
  • CNN convolutional neural network
  • RNN Recurrent Neural Networks recurrent Neural Networks
  • transformer neural network architecture a transformer neural network architecture
  • both the pilot signal and the data signal need to undergo additional spread spectrum processing, for example, the pilot signal and the data signal need to use different orthogonal codes to distinguish them; in other words, in CDMA in the related art, the pilot signal and the data signal transmitted on the same time-frequency resource are the pilot signal and the data signal after spread spectrum processing.
  • CDMA code division multiple access
  • the embodiments of the present application are mainly applied to OFDM systems/SC-FDMA systems, as well as other systems based on multiple sub-carriers, and the modulation symbols of the data signal (such as QPSK, and 16QAM) and the modulation symbols of the demodulated pilot signal can be directly transmitted on the same time-frequency resource, and the pilot signal and the data signal do not need to undergo additional spread spectrum processing; that is, in the schemes provided in the subsequent embodiments of the present application, the pilot signal and the data signal transmitted on the same time-frequency resource can be the pilot signal and the data signal that have not undergone spread spectrum processing.
  • the modulation symbols of the data signal such as QPSK, and 16QAM
  • the modulation symbols of the demodulated pilot signal can be directly transmitted on the same time-frequency resource, and the pilot signal and the data signal do not need to undergo additional spread spectrum processing; that is, in the schemes provided in the subsequent embodiments of the present application, the pilot signal and the data signal transmitted on the same time-frequency resource can be the pilot signal and the data signal
  • Resource Element A resource element is the smallest time-frequency resource unit of the system. For example, in NR or LTE systems, one RE corresponds to one subcarrier in the frequency domain and one symbol in the time domain.
  • a resource block may be for K consecutive subcarriers in the frequency domain.
  • an RB may be for K consecutive subcarriers in the frequency domain and M consecutive symbols in the time domain.
  • K is 12, and it may also be other values, such as 2 to the power of n, that is, K may be 8 or 16 or other values.
  • M may be one or more of 6, 7, 13, or 14.
  • PRB Physical Resource Block
  • Symbol can correspond to one or more of the following:
  • SC-FDMA symbol also called DFT-s-OFDM symbol, or multi-carrier symbol using transform precoder, or OFDM symbol using transform precoder
  • Fig. 2 is a schematic flow chart of a power indication method 200 according to an embodiment of the present application.
  • the method can optionally be applied to the system shown in Fig. 1, but is not limited thereto.
  • the method includes at least part of the following contents.
  • the first terminal device receives first indication information, where the first indication information indicates a first DMRS and/or power information of the first DMRS;
  • the first terminal device sends and/or receives data according to the first indication information.
  • the first indication information may be sent by the first network device or the second terminal device.
  • one or more REs used by the first DMRS are the same as REs used by data. That is, one or more or all REs of the first DMRS are also REs used by data, where the data may be general data and/or control information. In the following content, in order to simplify the description, these REs are referred to as shared REs.
  • the embodiment of the present application uses the first indication information to indicate the power information of the first DMRS, and can flexibly adjust the DMRS transmission power according to different situations, so as to better match the current transmission environment and requirements and improve performance.
  • the terminal device sends and/or receives data according to the first indication information, including:
  • the first terminal device determines the power of the first DMRS according to the power information of the first DMRS;
  • the first terminal device sends and/or receives data according to the power of the first DMRS.
  • the power information of the first DMRS may include the power offset value of the first DMRS, or the power parameter of the first DMRS, and other parameters.
  • the power offset value of the first DMRS, or the power parameter of the first DMRS, and other parameters can be used to determine the power of the first DMRS.
  • the aforementioned determination of power can be equivalently understood as calculating power, for example, "used to determine the power of the first DMRS" is equivalent to "used to calculate the power of the first DMRS"; “used to determine the power of the second DMRS” is equivalent to "used to calculate the power of the first DMRS"; and so on.
  • the first indication information schedules data transmission (for example, PUSCH data transmission, or PDSCH data transmission, or other data transmission)
  • data transmission uses a first DMRS
  • the data transmission uses a second DMRS.
  • the first indication information may further include a second domain, the second domain indicating that the data transmission uses the first DMRS and/or the second DMRS.
  • the first indication information schedules data transmission (e.g., PUSCH data transmission, or PDSCH data transmission, or other data transmission)
  • the second domain indicates that the data transmission uses the first DMRS, according to the indication of the second domain, the data transmission uses the first DMRS
  • the second domain indicates that the data transmission uses the second DMRS, according to the indication of the second domain
  • the data transmission uses the second DMRS
  • the second domain indicates that the data transmission uses the first DMRS and the second DMRS, according to the indication of the second domain, the data transmission uses the first DMRS and the second DMRS.
  • the second domain when the second domain takes the third value, the second domain indicates that the data transmission uses the first DMRS; when the second domain takes the fourth value, the second domain indicates that the data transmission uses the second DMRS; when the second domain takes the fifth value, the second domain indicates that the data transmission uses the first DMRS and the second DMRS.
  • the second domain indicates that the first DMRS and the second DMRS are used simultaneously, which can further improve the channel estimation performance.
  • the REs used by the second DMRS cannot be used for data transmission, that is, data and the second DMRS use different REs.
  • the first domain when the second domain indicates that the data transmission adopts the first DMRS, the first domain indicates the power information of the first DMRS; in some examples, when the second domain indicates that the data transmission adopts the second DMRS, the first domain indicates the power information of the second DMRS; in this way, the scheme proposed in the embodiment of the present application can indicate the power information of the first DMRS and the power information of the second DMRS, which can better match the current transmission environment and improve system performance;
  • the first domain indicates the power information of the first DMRS; in this way, the solution proposed in the present application only indicates the power information of the first DMRS, which can reduce the complexity of product implementation.
  • the power information indicated by the first indication information may be one or a group of power offset values (offset), for example, the power information of the first DMRS includes: one or a group of power offset values of the first DMRS; the power information of the second DMRS includes: one or a group of power offset values of the second DMRS.
  • offset the power information of the first DMRS includes: one or a group of power offset values of the first DMRS
  • the power information of the second DMRS includes: one or a group of power offset values of the second DMRS.
  • Each first value of the above-mentioned first domain may correspond to a power offset value or a group of power offset values
  • each second value of the above-mentioned first domain may correspond to a power offset value or a group of power offset values, and there may be multiple options.
  • the first DMRS and the second DMRS may be independently configured, for example, multiple or multiple groups of power offset values may be configured for the first DMRS, and another multiple or multiple groups of power offset values may be configured for the second DMRS. Accordingly, when the first DMRS is used for data transmission, the power of the first DMRS is determined using the multiple or multiple groups of power offset values configured for the first DMRS; when the second DMRS is used for data transmission, the power of the second DMRS is determined using the multiple or multiple groups of power offset values configured for the second DMRS.
  • the first terminal device receives first configuration information, and the first configuration information configures multiple or multiple groups of power offset values.
  • multiple power offset values or multiple groups of power offset values may be specified by the protocol, and the protocol specifies one power offset value or one group of power offset values corresponding to each first value of the first domain, or the protocol specifies one power offset value or one group of power offset values corresponding to each second value of the first domain. Specifying the power offset value by the protocol can simplify the complexity of product implementation.
  • multiple or multiple groups of power offset values are specified by the protocol, they can be specified for the first DMRS and the second DMRS respectively, for example, for the first DMRS, the protocol specifies multiple or multiple groups of power offset values; for the second DMRS, the protocol specifies another multiple or multiple groups of power offset values. Accordingly, in the case where the first DMRS is used for data transmission, the power of the first DMRS is determined using the multiple or multiple groups of power offset values specified for the first DMRS; in the case where the second DMRS is used for data transmission, the power of the second DMRS is determined using the multiple or multiple groups of power offset values specified for the second DMRS.
  • the first terminal device receives second indication information, and the first power is determined according to the second indication information.
  • the second indication information may be sent to the first terminal device by the first network device or the second terminal device.
  • the second indication information may be transmitted via Radio Resource Control (RRC) signaling and/or MAC CE signaling.
  • RRC Radio Resource Control
  • the first terminal device determines the first power according to the second indication information, and increases or decreases the power according to the power offset value of the first DMRS on the basis of the first power, thereby obtaining the power of the first DMRS; or increases or decreases the power according to the power offset value of the second DMRS on the basis of the first power, thereby obtaining the power of the second DMRS.
  • the first terminal device may determine the power of the first DMRS based on one or a set of power parameters of the first DMRS.
  • the first terminal device may also determine the power of the second DMRS based on one or a set of power parameters of the second DMRS.
  • the power parameter may include parameters involved in calculating the power, and the first terminal device may calculate one or a set of powers of the first DMRS using one or a set of power parameters of the first DMRS indicated by the first indication information.
  • the first terminal device may calculate one or a set of powers of the second DMRS using one or a set of power parameters of the second DMRS indicated by the first indication information.
  • the first network device may configure multiple power parameters or multiple groups of power parameters (for example, configured via third indication information); the first terminal device receives third indication information, which configures multiple or multiple groups of power parameters.
  • the third indication information is transmitted via RRC signaling.
  • the first terminal capability is reported for a frequency band (i.e., different frequency bands can independently report corresponding capabilities, per band). Independent reporting of different frequency bands can give the terminal greater freedom, for example, the terminal can support this function on one or some frequency bands, but not on other frequency bands, so that more terminals can support this new function.
  • the first terminal capability is reported independently according to the band combination (i.e., different band combinations can independently report corresponding capabilities, per band combination). Independent reporting of different band combinations can enable the terminal to have greater freedom. For example, the terminal may not support this function under a certain band combination, but support this function under another band combination, so that more terminals can support this new function.
  • the first terminal capability is reported independently for each frequency band in a band combination (i.e., frequency bands in different frequency band combinations can be reported independently, per band per band combination). Independent reporting of each frequency band in different frequency band combinations can enable the terminal to have greater freedom. For example, the terminal may not support this function under a certain frequency band combination, but support this function in some frequency bands under another frequency band combination, so that more terminals can support this new function.
  • the first terminal capability is reported per UE (i.e., per UE, that is, if the UE reports this capability, then this capability can be supported on all frequency bands). This approach can reduce the signaling overhead of reporting terminal capabilities.
  • the following steps may also be included:
  • the first terminal device may send the second terminal capability to the first network device or the second terminal device.
  • the second terminal capability is reported independently according to the band combination (i.e., different band combinations can independently report corresponding capabilities, per band combination). Independent reporting of different band combinations can give the terminal greater freedom. For example, the terminal may not support this function under a certain band combination, but support this function under another band combination, so that more terminals can support this new function.
  • the second terminal capability is reported independently for each frequency band in a band combination (i.e., frequency bands in different frequency band combinations can be reported independently, per band per band combination). Independent reporting of each frequency band in different frequency band combinations can enable the terminal to have greater freedom. For example, the terminal may not support this function under a certain frequency band combination, but support this function in some frequency bands under another frequency band combination, so that more terminals can support this new function.
  • the first field when the value of the first field is the second value, the first field indicates the second DMRS and/or power information of the second DMRS.
  • the first field indicates power information of the first DMRS.
  • the first network device or the second terminal device sends and/or receives data according to the first DMRS and/or the power information of the first DMRS.
  • the first network device or the second terminal device sends and/or receives data according to the power information of the first DMRS and/or the first DMRS, including:
  • the first network device or the second terminal device determines the power of the first DMRS according to the power information of the first DMRS;
  • the first network device or the second terminal device sends and/or receives data according to the power of the first DMRS.
  • the power information of the first DMRS includes: one or a group of power offset values of the first DMRS.
  • the first network device or the second terminal device determines the power of the first DMRS according to the power information of the first DMRS, including:
  • the first network device or the second terminal device determines the power of the first DMRS according to the first power and one or a group of power offset values of the first DMRS.
  • the first network device or the second terminal device sends first configuration information, the first configuration information configures multiple or multiple groups of power offset values; the one or a group of power offset values of the first DMRS is one or a group of power offset values among the multiple or multiple groups of power offset values.
  • the first network device or the second terminal device sends second indication information, where the second indication information indicates the first power.
  • the second indication information is transmitted via RRC signaling and/or MAC CE signaling.
  • the first power includes power corresponding to a first DMRS during a previous data transmission.
  • the first network device or the second terminal device determines the power of the first DMRS according to the power information of the first DMRS, including:
  • the first network device or the second terminal device determines the power of the first DMRS according to one or a group of power parameters of the first DMRS.
  • the first network device or the second terminal device sends a third indication information, and the third indication information configures multiple or multiple groups of power parameters; the one or a group of power parameters of the first DMRS is one or a group of power parameters among the multiple or multiple groups of power parameters.
  • the third indication information is transmitted via RRC signaling and/or MAC CE signaling.
  • the first indication information is transmitted via DCI signaling and/or MAC CE signaling.
  • the method before the first network device or the second terminal device sends the first indication information, the method further includes:
  • the first terminal capabilities are transmitted via RRC signaling and/or MAC CE.
  • each grid in Table 2 represents one RE.
  • the RE represented by the small grid filled with a pattern is used for both data and the first DMRS transmission; the RE represented by the small grid without a pattern filling is only used for data transmission.
  • the 12 REs corresponding to the first symbol (i.e., symbol 0) in the PDSCH time-frequency resource are used for both data and the first DMRS transmission, and the REs corresponding to other symbols (i.e., symbols 1 to 7) are only used for data transmission.
  • the first indication information may be transmitted via DCI signaling and/or MAC CE signaling.
  • the first indication information contains two fields, which are respectively recorded as a first field and a second field.
  • the second domain indicates that the first DMRS is used for data transmission
  • the first indication information schedules a first data transmission (eg, PUSCH, or PDSCH, or other transmission)
  • the first data transmission uses a first DMRS
  • the first field indicates power information of the first DMRS.
  • the second domain When the second domain takes the fourth value, the second domain indicates that the second DMRS is used for data transmission.
  • the first indication information schedules the first data transmission (eg, PUSCH, or PDSCH, or other transmission)
  • the first data transmission uses the second DMRS
  • the first field can indicate the power information of the second DMRS, or the information of the first field can be ignored.
  • the second domain may also be a fifth value.
  • the second domain indicates that the first DMRS and the second DMRS are used for data transmission.
  • the first indication information schedules the first data transmission (eg, PUSCH, or PDSCH, or other transmission)
  • the first data transmission may use the first DMRS, or the first data transmission may use the first DMRS and the second DMRS.
  • the first field indicates the power information of the first DMRS.
  • the first field may indicate the power information of the first DMRS.
  • the first field may indicate the power information of the first DMRS or the power information of the second DMRS.
  • the power information may include a power offset value.
  • the first domain can have X values (i.e., corresponding to X different first values), which are respectively recorded as the first code point (codepoint), the second code point, ..., the Xth code point.
  • Each code point can indicate a power offset value or a group of power offset values.
  • the power offset value can be a dB value or a linear value. In signaling indication or use, corresponding conversion (for example, from a dB value to a linear value, or from a linear value to a dB value) may be required, which is not repeated in each example of the present invention.
  • the first network device or the second terminal device configures multiple power offset values or multiple groups of power offset values for the first terminal device through the first configuration information.
  • the network can configure X power offset values/X groups of power offset values, and one code point corresponds to one power offset value/a group of power offset values; for another example, the network can configure X-1 power offset values/X-1 groups of power offset values, and one code point corresponds to a power offset value of 0 (i.e., no power offset), and each of the other X-1 code points corresponds to a power offset value/a group of power offset values.
  • the network can configure K1 power offset values/K1 groups of power offset values (K1 ⁇ X-1), one code point corresponds to a power offset value of 0 (i.e., no power offset), and each of the other K1 code points corresponds to a power offset value/a group of power offset values, and the remaining X-K1-1 code points can be reserved and not used; or, the remaining X-K1-1 code points can correspond to a fixed power offset value (for example, 0) according to the protocol provisions; or, the remaining X-K1-1 code points can correspond to one or a group of K1 power offset values/K1 groups of power offset values according to the protocol provisions.
  • the network can configure K1 power offset values/K1 groups of power offset values (K1 ⁇ X-1), each of the K1 code points corresponds to a power offset value/a group of power offset values, and the remaining X-K1 code points can be reserved and not used; or, the remaining X-K1 code points can correspond to a fixed power offset value (e.g., 0) according to the protocol; or, the remaining X-K1 code points can correspond to one or a group of K1 power offset values/K1 groups of power offset values according to the protocol.
  • the correspondence between code points and power offset values can be implemented in different ways, such as determining which code point corresponds to which power offset value/which group of power offset values through predetermined rules (possible options are protocol fixed, network configuration, etc.).
  • the protocol specifies a power offset value corresponding to each first value (ie, each codepoint), wherein the power offset value corresponding to one or more codepoints may be 0 (ie, no power offset).
  • the first DMRS and the second DMRS may be independently configured, for example, multiple or multiple groups of power offset values may be configured for the first DMRS, and another multiple or multiple groups of power offset values may be configured for the second DMRS. Accordingly, when the first DMRS is used for data transmission, the power of the first DMRS is determined using the multiple or multiple groups of power offset values configured for the first DMRS; when the second DMRS is used for data transmission, the power of the second DMRS is determined using the multiple or multiple groups of power offset values configured for the second DMRS.
  • the power offset value may refer to an increase or decrease in power on a first power (for example, if the first power is P and the power offset value is D, the power of the first DMRS or the second DMRS is calculated as P+D; where D may be a positive number, a negative number or 0).
  • the actual power may need to be further processed based on P+D, for example, it cannot exceed the maximum allowed transmit power.
  • the first terminal device can determine the first power (i.e. corresponding to the P described above) according to the second indication information, and the power offset value is to increase or decrease the power (D) based on the first power.
  • the second indication information can be sent to the first terminal device by the first network device or the second terminal device.
  • the second indication information can be transmitted through RRC signaling and/or MAC CE signaling.
  • the first DMRS and the second DMRS may also be independently configured, for example, a first power is configured for the first DMRS, and another first power is configured for the second DMRS. Accordingly, when the first DMRS is used for data transmission, the power of the first DMRS is determined using the first power configured for the first DMRS; when the second DMRS is used for data transmission, the power of the second DMRS is determined using the second power configured for the second DMRS.
  • the first power may be the power of the previous data transmission.
  • the first power may be the power corresponding to the DMRS in the previous PDSCH;
  • the first power may be the power corresponding to the DMRS in the previous PUSCH.
  • the previous data transmission described here may also include the situation that the previous data transmission uses the same DMRS. For example, if the power of the first DMRS is considered, then the "previous data transmission" may be the "previous data transmission using the first DMRS". Other situations are similar and will not be elaborated one by one.
  • the power information may include a power parameter or a power parameter offset value.
  • the first domain may indicate a power parameter/power parameter offset value of a first DMRS, or a power parameter/power parameter offset value of a second DMRS.
  • the power parameter may be used to calculate power. Assume that the first domain may have X values (i.e., corresponding to X different first values), which are respectively recorded as the first code point (codepoint), the second code point, ..., the Xth code point. Each code point may indicate a power parameter/power parameter offset value, or indicate a group of power parameters/power parameter offset values.
  • the first network device or the second terminal device configures multiple power parameters/power parameter offset values, or configures multiple groups of power parameters/power parameter offset values for the first terminal device through the first configuration information.
  • the network can configure X power parameter offset values/X groups of power parameter offset values, and one code point corresponds to one power parameter offset value/a group of power parameter offset values; for example, the network can configure X-1 power parameter offset values, and one code point corresponds to a power parameter offset value of 0 (i.e., no power parameter offset), and each of the other X-1 code points corresponds to a power parameter offset value/a group of power parameter offset values.
  • the network can configure K1 power parameter offset values/K1 groups of power parameter offset values (K1 ⁇ X-1), one code point corresponds to a power parameter offset value of 0 (i.e., no power parameter offset), and each of the other K1 code points corresponds to a power parameter offset value/a group of power parameter offset values, and the remaining X-K1-1 code points can be reserved and not used; or, the remaining X-K1-1 code points can correspond to a fixed power parameter offset value (for example, 0) according to the protocol provisions; or, the remaining X-K1-1 code points can correspond to one or a group of K1 power parameter offset values/K1 groups of power parameter offset values according to the protocol provisions.
  • the network can be configured with K1 power parameter offset values/K1 groups of power parameter offset values (K1 ⁇ X-1), each of the K1 code points corresponds to a power parameter offset value/a group of power parameter offset values, and the remaining X-K1 code points can be reserved and not used; or, the remaining X-K1 code points can correspond to a fixed power parameter offset value (for example, 0) according to the protocol provisions; or, the remaining X-K1 code points can correspond to one or a group of K1 power parameter offset values/K1 groups of power parameter offset values according to the protocol provisions.
  • K1 power parameter offset values/K1 groups of power parameter offset values K1 ⁇ X-1
  • each of the K1 code points corresponds to a power parameter offset value/a group of power parameter offset values
  • the remaining X-K1 code points can be reserved and not used
  • the remaining X-K1 code points can correspond to a fixed power parameter offset value (for example, 0) according to the protocol provisions
  • the remaining X-K1 code points
  • the correspondence between the code point and the power parameter/power parameter offset value can be implemented in different ways, for example, by determining which code point corresponds to which power parameter/power parameter offset value, or which group of power parameters/power parameter offset values, through a predetermined rule (possible options are protocol fixed, network configuration, etc.).
  • the power parameter/power parameter offset value is specified by the protocol or configured by the network, it can be specified or configured independently for the first DMRS and the second DMRS, for example, the power parameter/power parameter offset value is specified or configured for the first DMRS, and the power parameter/power parameter offset value is specified or configured for the second DMRS.
  • the power of the first DMRS is determined using the power parameter/power parameter offset value specified or configured for the first DMRS; in the case where the second DMRS is used for data transmission, the power of the second DMRS is determined using the power parameter/power parameter offset value specified or configured for the second DMRS.
  • the protocol specifies a power parameter/power parameter offset value corresponding to each first value (ie, each codepoint), wherein the power parameter offset value corresponding to one or more codepoints may be 0 (ie, no power parameter offset).
  • the power parameter offset value may refer to an increase or decrease based on a certain power parameter (for example, a certain power parameter is A, and the power parameter offset value is D (D can be positive, negative or 0), then the offset power parameter is A+D, and A+D is used to calculate the power corresponding to the DMRS.
  • the actual power may also need to be further processed based on the calculated power, for example, it cannot exceed the maximum allowed transmit power.
  • the first terminal device may determine the power parameter (i.e., corresponding to A described above) according to the second indication information, and increase or decrease the power parameter offset (D) based on the power parameter, and then use the offset power parameter (i.e., A+D) to calculate the power corresponding to the DMRS.
  • the second indication information may be transmitted via RRC signaling and/or MAC CE signaling.
  • An implementation example is: the first terminal device receives the third indication information sent by the first network device or the second terminal device, the third indication information indicates multiple first power parameters, the value of the first domain can be 1 or more first values (i.e. 1 codepoint or multiple codepoints), and each first value indicates 1 first power parameter among the multiple first power parameters. For example, if the third indication information indicates K2 first power parameters, then the K2 codepoints correspond to 1 first power parameter among the K2 first power parameters.
  • the remaining X-K2 (or X-K2-1, the other one can correspond to a fixed value, such as 0) codepoints can be reserved and not used; or, the remaining X-K2 codepoints correspond to a fixed power parameter according to the protocol (for example, the fixed power parameter can be a fixed power offset value, and the fixed power offset value is 0); or, the remaining X-K2 (or X-K2-1, the other one can correspond to a fixed value, such as 0) codepoints correspond to one of the K2 first power parameters according to the protocol.
  • the first terminal device receives the third indication information sent by the first network device or the second terminal device, the third indication information indicates multiple groups of first power parameters, and the value of the first field can be one or more first values (i.e., one codepoint or multiple codepoint), each first value indicates one group of first power parameters in multiple groups of first power parameters. For example, if the third indication information indicates K3 groups of first power parameters, then the K3 codepoints correspond to one group of first power parameters in the K3 groups of first power parameters.
  • the remaining X-K3 (or X-K3-1, the other one can correspond to a group of fixed parameters) codepoints can be reserved and not used; or, the remaining X-K3 codepoints correspond to a group of fixed power parameters according to the protocol; or, the remaining X-K3 (or X-K3-1, the other one can correspond to a group of fixed parameters) codepoints correspond to a certain group of the K3 groups of first power parameters according to the protocol.
  • the first terminal device can determine the power of the first DMRS or the second DMRS, and send and/or receive signals according to the power.
  • the first terminal device may also report its own capabilities to the first network device or the second terminal device. For example, the first terminal device sends at least one of the first terminal capabilities, the second terminal capabilities, and the third terminal capabilities.
  • the specific sending method can refer to the above content and will not be repeated here.
  • the first indication information includes a first field, and the first field may indicate power information of the first DMRS, and may also indicate power information of the second DMRS and/or the second DMRS.
  • the first terminal device receives first indication information sent by the first network device or the second terminal device (corresponding to the sidelink scenario), where the first indication information indicates power information of a first demodulation reference signal (recorded as a first DMRS), and one or more or all REs of the first DMRS are also REs used for data (including general data or control information), and these REs can be called shared REs.
  • first indication information indicates power information of a first demodulation reference signal (recorded as a first DMRS)
  • the first DMRS power information of a first demodulation reference signal
  • REs of the first DMRS are also REs used for data (including general data or control information)
  • these REs can be called shared REs.
  • the power information may include one or more of a power offset value, a power parameter, a power parameter offset value, parameters related to calculating path loss, and other parameters.
  • the first indication information can be transmitted via DCI signaling and/or MAC CE signaling.
  • the power information may include a power parameter or a power parameter offset value.
  • the first domain may indicate a power parameter/power parameter offset value of a first DMRS, or a power parameter/power parameter offset value of a second DMRS.
  • the correspondence between a code point and a power parameter/power parameter offset value may be implemented in different ways, such as by determining which code point corresponds to which power parameter/power parameter offset value, or which group of power parameters/power parameter offset values, through a predetermined rule (possible options are protocol fixed, network configuration, etc.).
  • the power information may include one or more of a power offset value, a power parameter, a power parameter offset value, parameters related to calculating path loss, and other parameters.
  • the network can configure K6 power parameter offset values/K6 groups of power parameter offset values (K1 ⁇ X-1), one code point corresponds to a power parameter offset value of 0 (i.e., no power parameter offset), and each of the other K6-1 code points corresponds to a power parameter offset value/a group of power parameter offset values, and the remaining X-K6 code points can be retained and not used; or, the remaining X-K6 code points can correspond to a fixed power parameter offset value (for example, 0) according to the protocol provisions; or, the remaining X-K6 code points can correspond to one of the K6 power parameter offset values according to the protocol provisions.
  • the protocol specifies a power parameter/power parameter offset value corresponding to each first value (ie, each codepoint), wherein the power parameter offset value corresponding to one or more codepoints may be 0 (ie, no power parameter offset).
  • the power parameter offset value may refer to an increase or decrease based on a certain power parameter (for example, a certain power parameter is A, and the power parameter offset value is D (D may be a positive number, a negative number or 0), then the offset power parameter is A+D, and A+D is used to calculate the power corresponding to the first DMRS.
  • a certain power parameter is A
  • D may be a positive number, a negative number or 0
  • the first terminal device may determine the power parameter (i.e., corresponding to A described above) according to the second indication information, and increase or decrease the power parameter offset (D) based on the power parameter, and then use the offset power parameter (i.e., A+D) to calculate the power corresponding to the first DMRS.
  • the second indication information may be transmitted via RRC signaling and/or MAC CE signaling.
  • the remaining X-K8 (or X-K8-1, the other one can correspond to a set of fixed parameters) codepoints can be reserved and not used; or, the remaining X-K8 codepoints correspond to a set of fixed power parameters according to the protocol; or, the remaining X-K8 (or X-K8-1, the other one can correspond to a set of fixed parameters) codepoints correspond to a group of the first power parameters of the K8 group according to the protocol.
  • the first terminal device can determine the power of the first DMRS and send and/or receive signals according to the power.
  • the first field may indicate one or a group of power information of the first DMRS, or indicate one or a group of power information of the second DMRS.
  • each data stream can determine the power based on the power information.
  • each data stream may determine power based on one power information in the set of power information.
  • the first field indicates a power offset value
  • the power offset value may be for all transmission data streams (layers), and each data stream in the multiple data streams determines the power based on the power offset value.
  • the first domain indicates a set of power offset values
  • different power offset values in the set of power offset values may be respectively directed to different transmission data streams (layers).
  • the first domain indicates a set of power offset values, which includes 4 values. If the current transmission has only 2 data streams (layers), the first power offset value and the second power offset value in this set of power offset values are used to determine the power of the first data stream and the second data stream, respectively.
  • the first domain indicates a set of power offset values, which includes 4 values. If the current transmission has only one data stream (layer), the first power offset value of this set of power offset values is used to determine the power of the first data stream.
  • the first domain indicates a set of power offset values, which includes 4 values. If there are 4 data streams (layers) currently being transmitted, the first, second, third and fourth power offset values in this set of power offset values are used to determine the power of the first data stream, the second data stream, the third data stream and the fourth data stream, respectively.
  • FIG4 is a schematic block diagram of a first terminal device 400 according to an embodiment of the present application.
  • the first terminal device 400 may include:
  • the first field when the value of the first field is the first value, the first field indicates the first DMRS and/or power information of the first DMRS.
  • the second DMRS is used for data transmission.
  • the first field indicates the first DMRS and/or power information of the first DMRS.
  • the first field when the second field indicates that the second DMRS is used for data transmission, the first field is ignored, or the first field indicates a predetermined value.
  • the value of the first field is only the first value, and the first field indicates the power information of the first DMRS.
  • the first field indicates the first DMRS and/or power information of the first DMRS.
  • the first transceiver module 410 is configured to:
  • Data is transmitted and/or received according to the power of the first DMRS.
  • the power information of the first DMRS includes: one or a group of power offset values of the first DMRS.
  • the first transceiver module 410 is configured to:
  • the power of the first DMRS is determined according to the first power and one or a group of power offset values of the first DMRS.
  • the first transceiver module 410 is also used to receive first configuration information, which configures multiple or multiple groups of power offset values; the one or one group of power offset values of the first DMRS is one or one group of power offset values among the multiple or multiple groups of power offset values.
  • the first transceiver module 410 is further configured to receive second indication information, and the first power is determined according to the second indication information.
  • the second indication information is transmitted via RRC signaling and/or MAC CE signaling.
  • the first power includes power corresponding to the first DMRS during previous data transmission.
  • the power information of the first DMRS includes: one or a group of power parameters of the first DMRS.
  • the first transceiver module 410 is configured to:
  • the power of the first DMRS is determined according to one or a group of power parameters of the first DMRS.
  • the first transceiver module 410 is further used to receive third indication information, which configures multiple or multiple groups of power parameters; the one or one group of power parameters of the first DMRS is one or one group of power parameters among the multiple or multiple groups of power parameters.
  • the third indication information is transmitted via RRC signaling and/or MAC CE signaling.
  • the first transceiver module 410 is configured to:
  • the first indication information is transmitted via DCI signaling and/or MAC CE signaling.
  • the first transceiver module 410 is further configured to:
  • a first terminal capability is sent, where the first terminal capability indicates that the first terminal device supports a first DMRS.
  • the first terminal capabilities are transmitted via RRC signaling and/or MAC CE.
  • the first transceiver module 410 is further used to send a second terminal capability, where the second terminal capability indicates that the first terminal device supports indicating the power information of the first DMRS through the first indication information.
  • the second terminal capabilities are transmitted via RRC signaling and/or MAC CE.
  • the first transceiver module 410 is also used to send a third terminal capability, where the third terminal capability indicates that the first terminal device supports indicating the power information of the first DMRS and/or the power information of the second DMRS through the first indication information, or the third terminal capability indicates that the first terminal device supports indicating the first DMRS and/or the second DMRS through the first indication information.
  • the third terminal capabilities are transmitted via RRC signaling and/or MAC CE.
  • the first terminal device 400 of the embodiment of the present application can implement the corresponding functions of the first terminal device in the aforementioned method embodiment.
  • the processes, functions, implementation methods and beneficial effects corresponding to the various modules (sub-modules, units or components, etc.) in the first terminal device 400 can be found in the corresponding descriptions in the above method embodiments, which will not be repeated here.
  • the functions described by the various modules (sub-modules, units or components, etc.) in the first terminal device 400 of the embodiment of the application can be implemented by different modules (sub-modules, units or components, etc.) or by the same module (sub-module, unit or component, etc.).
  • FIG5 is a schematic block diagram of a first network device 500 according to an embodiment of the present application.
  • the first network device 500 may include:
  • the second transceiver module 510 is configured to send first indication information, where the first indication information indicates the first DMRS and/or power information of the first DMRS.
  • one or more REs used by the first DMRS are the same as REs used by data.
  • the first indication information includes a first field, and the first field indicates the first DMRS and/or power information of the first DMRS.
  • the first field when the value of the first field is the first value, the first field indicates the first DMRS and/or power information of the first DMRS.
  • the first field when the value of the first field is the second value, the first field indicates the second DMRS and/or power information of the second DMRS.
  • data transmission uses a first DMRS
  • the second DMRS is used for data transmission.
  • the first indication information further includes a second field, and the second field indicates that the data transmission uses the first DMRS and/or the second DMRS.
  • the first field indicates power information of the first DMRS.
  • the first field indicates power information of the second DMRS.
  • the first field when the second field indicates that the second DMRS is used for data transmission, the first field is ignored, or the first field indicates a predetermined value.
  • the first field indicates power information of the first DMRS.
  • REs used by the second DMRS are different from REs used by data.
  • the second transceiver module 510 is further configured to send and/or receive data according to the first DMRS and/or the power information of the first DMRS.
  • the second transceiver module 510 is configured to:
  • Data is transmitted and/or received according to the power of the first DMRS.
  • the power information of the first DMRS includes: one or a group of power offset values of the first DMRS.
  • the second transceiver module 510 is configured to:
  • the power of the first DMRS is determined according to the first power and one or a group of power offset values of the first DMRS.
  • the second transceiver module 510 is also used to send first configuration information, which configures multiple or multiple groups of power offset values; one or a group of power offset values of the first DMRS is one or a group of power offset values among the multiple or multiple groups of power offset values.
  • the second transceiver module 510 is further configured to send second indication information, where the second indication information indicates the first power.
  • the second indication information is transmitted via RRC signaling and/or MAC CE signaling.
  • the first power includes power corresponding to the first DMRS during previous data transmission.
  • the power information of the first DMRS includes: one or a group of power parameters of the first DMRS.
  • the second transceiver module 510 is configured to:
  • the power of the first DMRS is determined according to one or a group of power parameters of the first DMRS.
  • the second transceiver module 510 is further used to send third indication information, where the third indication information configures multiple or multiple groups of power parameters; the one or one group of power parameters of the first DMRS is one or one group of power parameters among the multiple or multiple groups of power parameters.
  • the third indication information is transmitted via RRC signaling and/or MAC CE signaling.
  • the first indication information is transmitted via DCI signaling and/or MAC CE signaling.
  • the second transceiver module 510 is further configured to receive a first terminal capability sent by the first terminal device, where the first terminal capability indicates that the first terminal device supports the first DMRS.
  • the first terminal capabilities are transmitted via RRC signaling and/or MAC CE.
  • the second transceiver module 510 is further used to receive a second terminal capability sent by the first terminal device, where the second terminal capability indicates that the first terminal device supports indicating the power information of the first DMRS through the first indication information.
  • the second terminal capabilities are transmitted via RRC signaling and/or MAC CE.
  • the second transceiver module 510 is also used to receive a third terminal capability sent by the first terminal device, and the third terminal capability indicates that the first terminal device supports indicating the power information of the first DMRS and/or the power information of the second DMRS through the first indication information, or the third terminal capability indicates that the first terminal device supports indicating the first DMRS and/or the second DMRS through the first indication information.
  • the third terminal capabilities are transmitted via RRC signaling and/or MAC CE.
  • the first network device 500 of the embodiment of the present application can implement the corresponding functions of the first network device in the aforementioned method embodiment.
  • the processes, functions, implementation methods and beneficial effects corresponding to the various modules (sub-modules, units or components, etc.) in the first network device 500 can be found in the corresponding descriptions in the above method embodiments, which will not be repeated here.
  • the functions described by the various modules (sub-modules, units or components, etc.) in the first network device 500 of the application embodiment can be implemented by different modules (sub-modules, units or components, etc.), or by the same module (sub-module, unit or component, etc.).
  • FIG6 is a schematic block diagram of a second terminal device 600 according to an embodiment of the present application.
  • the second terminal device 600 may include:
  • the third transceiver module 610 is configured to send first indication information, where the first indication information indicates the first DMRS and/or power information of the first DMRS.
  • one or more REs used by the first DMRS are the same as REs used by data.
  • the first indication information includes a first field, and the first field indicates the first DMRS and/or power information of the first DMRS.
  • the first field when the value of the first field is the first value, the first field indicates the first DMRS and/or power information of the first DMRS.
  • the first field when the value of the first field is the second value, the first field indicates the second DMRS and/or power information of the second DMRS.
  • data transmission uses a first DMRS
  • the second DMRS is used for data transmission.
  • the first indication information further includes a second field, and the second field indicates that the data transmission uses the first DMRS and/or the second DMRS.
  • the first field indicates power information of the first DMRS.
  • the first field indicates power information of the second DMRS.
  • the first field when the second field indicates that the second DMRS is used for data transmission, the first field is ignored, or the first field indicates a predetermined value.
  • the first field indicates power information of the first DMRS.
  • REs used by the second DMRS are different from REs used by data.
  • the third transceiver module 610 is further configured to send and/or receive data according to the first DMRS and/or the power information of the first DMRS.
  • the third transceiver module 610 is configured to:
  • the power information of the first DMRS includes: one or a group of power offset values of the first DMRS.
  • the third transceiver module 610 is configured to:
  • the power of the first DMRS is determined according to the first power and one or a group of power offset values of the first DMRS.
  • the third transceiver module 610 is also used to send first configuration information, which configures multiple or multiple groups of power offset values; one or a group of power offset values of the first DMRS is one or a group of power offset values among the multiple or multiple groups of power offset values.
  • the third transceiver module 610 is further configured to send second indication information, where the second indication information indicates the first power.
  • the second indication information is transmitted via RRC signaling and/or MAC CE signaling.
  • the first power includes power corresponding to the first DMRS during previous data transmission.
  • the power information of the first DMRS includes: one or a group of power parameters of the first DMRS.
  • the third transceiver module 610 is configured to:
  • the power of the first DMRS is determined according to one or a group of power parameters of the first DMRS.
  • the third transceiver module 610 is further used to send third indication information, where the third indication information configures multiple or multiple groups of power parameters; the one or one group of power parameters of the first DMRS is one or one group of power parameters among the multiple or multiple groups of power parameters.
  • the third indication information is transmitted via RRC signaling and/or MAC CE signaling.
  • the first indication information is transmitted via DCI signaling and/or MAC CE signaling.
  • the third transceiver module 610 is further configured to receive a first terminal capability sent by the first terminal device, where the first terminal capability indicates that the first terminal device supports the first DMRS.
  • the first terminal capabilities are transmitted via RRC signaling and/or MAC CE.
  • the third transceiver module 610 is further used to receive a second terminal capability sent by the first terminal device, where the second terminal capability indicates that the first terminal device supports indicating the power information of the first DMRS through the first indication information.
  • the second terminal capabilities are transmitted via RRC signaling and/or MAC CE.
  • the third transceiver module 610 is also used to receive a third terminal capability sent by the first terminal device, and the third terminal capability indicates that the first terminal device supports indicating the power information of the first DMRS and/or the power information of the second DMRS through the first indication information, or the third terminal capability indicates that the first terminal device supports indicating the first DMRS and/or the second DMRS through the first indication information.
  • the third terminal capabilities are transmitted via RRC signaling and/or MAC CE.
  • the second terminal device 600 of the embodiment of the present application can implement the corresponding functions of the second terminal device in the aforementioned method embodiment.
  • the processes, functions, implementation methods and beneficial effects corresponding to each module (submodule, unit or component, etc.) in the second terminal device 600 can be found in the corresponding description in the above method embodiment, which will not be repeated here.
  • the functions described by each module (submodule, unit or component, etc.) in the second terminal device 600 of the application embodiment can be implemented by different modules (submodules, units or components, etc.) or by the same module (submodule, unit or component, etc.).
  • Fig. 7 is a schematic structural diagram of a communication device 700 according to an embodiment of the present application.
  • the communication device 700 includes a processor 710, and the processor 710 can call and run a computer program from a memory to enable the communication device 700 to implement the method in the embodiment of the present application.
  • the communication device 700 may further include a memory 720.
  • the processor 710 may call and run a computer program from the memory 720 to enable the communication device 700 to implement the method in the embodiment of the present application.
  • the memory 720 may be a separate device independent of the processor 710 , or may be integrated into the processor 710 .
  • the communication device 700 may further include a transceiver 730, and the processor 710 may control the transceiver 730 to communicate with other devices, specifically, may send information or data to other devices, or receive information or data sent by other devices.
  • the transceiver 730 may include a transmitter and a receiver.
  • the transceiver 730 may further include an antenna, and the number of the antennas may be one or more.
  • the communication device 700 may be a network device of an embodiment of the present application, and the communication device 700 may implement the corresponding processes implemented by the network device in each method of the embodiment of the present application, which will not be described in detail here for the sake of brevity.
  • the communication device 700 may be a terminal device of an embodiment of the present application, and the communication device 700 may implement the corresponding processes implemented by the terminal device in each method of the embodiment of the present application, which will not be described in detail here for the sake of brevity.
  • Fig. 8 is a schematic structural diagram of a chip 800 according to an embodiment of the present application.
  • the chip 800 includes a processor 810, and the processor 810 can call and run a computer program from a memory to implement the method in the embodiment of the present application.
  • the chip 800 may further include a memory 820.
  • the processor 810 may call and run a computer program from the memory 820 to implement the method executed by the terminal device or the network device in the embodiment of the present application.
  • the memory 820 may be a separate device independent of the processor 810 , or may be integrated into the processor 810 .
  • the chip 800 may further include an input interface 830.
  • the processor 810 may control the input interface 830 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.
  • the chip 800 may further include an output interface 840.
  • the processor 810 may control the output interface 840 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.
  • the chip can be applied to the network device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the network device in each method of the embodiments of the present application. For the sake of brevity, they will not be repeated here.
  • the chip can be applied to the terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they will not be repeated here.
  • the chips used in the network device and the terminal device may be the same chip or different chips.
  • the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.
  • the processor mentioned above may be a general-purpose processor, a digital signal processor (DSP), a field programmable gate array (FPGA), an application specific integrated circuit (ASIC) or other programmable logic devices, transistor logic devices, discrete hardware components, etc.
  • DSP digital signal processor
  • FPGA field programmable gate array
  • ASIC application specific integrated circuit
  • the general-purpose processor mentioned above may be a microprocessor or any conventional processor, etc.
  • the memory mentioned above may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories.
  • the non-volatile memory may be a read-only memory (ROM), a programmable ROM (PROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM) or a flash memory.
  • the volatile memory may be a random access memory (RAM).
  • the memory in the embodiments of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is to say, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (Digital Subscriber Line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center.
  • the computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrated.
  • the available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid state drive (SSD)), etc.
  • the size of the serial numbers of the above-mentioned processes does not mean the order of execution.
  • the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente demande se rapporte à un procédé d'indication de puissance, à un dispositif terminal et à un dispositif de réseau. Le procédé d'indication de puissance comprend les étapes suivantes : un premier dispositif terminal reçoit des premières informations d'indication, les premières informations d'indication indiquant un premier DMRS et/ou des informations de puissance du premier DMRS ; et le premier dispositif terminal envoie et/ou reçoit des données sur la base des premières informations d'indication. Selon la présente demande, la puissance de transmission de DMRS peut être ajustée de manière flexible sur la base de différentes situations, ce qui permet de mieux mettre en correspondance l'environnement de transmission actuel et les exigences, et d'améliorer les performances.
PCT/CN2023/143473 2023-12-29 2023-12-29 Procédé d'indication de puissance, dispositif terminal, et dispositif de réseau Pending WO2025138181A1 (fr)

Priority Applications (1)

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PCT/CN2023/143473 WO2025138181A1 (fr) 2023-12-29 2023-12-29 Procédé d'indication de puissance, dispositif terminal, et dispositif de réseau

Applications Claiming Priority (1)

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PCT/CN2023/143473 WO2025138181A1 (fr) 2023-12-29 2023-12-29 Procédé d'indication de puissance, dispositif terminal, et dispositif de réseau

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103905142A (zh) * 2012-12-26 2014-07-02 华为技术有限公司 一种解调下行子帧的方法及设备
WO2017008235A1 (fr) * 2015-07-14 2017-01-19 Nec Corporation Procédé et appareil de configuration de puissance de transmission en liaison descendante et de détection de signal
CN106470487A (zh) * 2015-08-19 2017-03-01 中国移动通信集团公司 功率分配指示方法、相关设备和系统
CN112243596A (zh) * 2020-09-18 2021-01-19 北京小米移动软件有限公司 发送dmrs的方法、装置、终端和介质
CN112449413A (zh) * 2019-08-29 2021-03-05 中国移动通信有限公司研究院 功率指示方法、确定方法、装置、网络侧设备及终端
US20230155779A1 (en) * 2020-06-08 2023-05-18 Qualcomm Incorporated Flexible resource element (re) mapping and power control of demodulation reference signal (dmrs) in sub-resource block (rb) physical uplink shared channel (pusch) for coverage enhancement

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103905142A (zh) * 2012-12-26 2014-07-02 华为技术有限公司 一种解调下行子帧的方法及设备
WO2017008235A1 (fr) * 2015-07-14 2017-01-19 Nec Corporation Procédé et appareil de configuration de puissance de transmission en liaison descendante et de détection de signal
CN106470487A (zh) * 2015-08-19 2017-03-01 中国移动通信集团公司 功率分配指示方法、相关设备和系统
CN112449413A (zh) * 2019-08-29 2021-03-05 中国移动通信有限公司研究院 功率指示方法、确定方法、装置、网络侧设备及终端
US20230155779A1 (en) * 2020-06-08 2023-05-18 Qualcomm Incorporated Flexible resource element (re) mapping and power control of demodulation reference signal (dmrs) in sub-resource block (rb) physical uplink shared channel (pusch) for coverage enhancement
CN112243596A (zh) * 2020-09-18 2021-01-19 北京小米移动软件有限公司 发送dmrs的方法、装置、终端和介质

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