WO2021026695A1 - Procédé et appareil de transmission de données - Google Patents

Procédé et appareil de transmission de données Download PDF

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Publication number
WO2021026695A1
WO2021026695A1 PCT/CN2019/100073 CN2019100073W WO2021026695A1 WO 2021026695 A1 WO2021026695 A1 WO 2021026695A1 CN 2019100073 W CN2019100073 W CN 2019100073W WO 2021026695 A1 WO2021026695 A1 WO 2021026695A1
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WO
WIPO (PCT)
Prior art keywords
antenna
terminal device
transmission power
power mode
reference signal
Prior art date
Application number
PCT/CN2019/100073
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English (en)
Chinese (zh)
Inventor
洪艺伟
邝奕如
Original Assignee
华为技术有限公司
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 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201980096484.5A priority Critical patent/CN113826423B/zh
Priority to PCT/CN2019/100073 priority patent/WO2021026695A1/fr
Publication of WO2021026695A1 publication Critical patent/WO2021026695A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • This application relates to the field of communications, and more specifically, to methods and devices for data transmission in the field of communications.
  • the number of antennas of network equipment has increased significantly, and the number of antennas of terminal equipment has also increased significantly.
  • the terminal equipment will be configured so that the number of receiving antennas and the number of transmitting antennas are not equal.
  • 4 antennas can be configured with 2 transmit and 4 receive (2T4R) mode, where 2 antennas are used to transmit signals.
  • All 4 antennas can be used for receiving signals, that is, the receiving channels of 4 antennas can be used for receiving, but the transmitting channels of 2 antennas are used for transmitting signals; for example, 8 antennas are configured with 4 transmitting and 8 receiving (4T8R) Mode, where 4 antennas are used for transmitting signals, and all 8 antennas can be used for receiving signals, that is, all the receiving channels of 8 antennas can be used for receiving, but the transmitting channels of 4 antennas are used for transmitting signals.
  • some terminal devices with unequal numbers of transmitting and receiving antennas can perform antenna selection (antenna selection), that is, which antennas are selected, and the transmission channels of these antennas are used for signal transmission, which can be called antenna selection terminals.
  • the present application provides a method and device for data transmission, which can help reduce the radiation of terminal equipment and meet the needs of users for high-speed communication rates.
  • a data transmission method including:
  • the terminal device Determine the transmission power mode of the probe signal of the terminal device, wherein the transmission power mode includes a first transmission power mode and a second transmission power mode, and the transmission power of the reference signal of the first part of the antenna in the first transmission power mode is less than the first transmission power mode.
  • this mode can help reduce the radiation of the terminal device when the terminal device is close to the user's head. Since the transmission power of the reference signal of the first part of the antenna in the second transmission power mode is large, it can help meet the user's demand for high-speed communication rates when the terminal device is not close to (that is, far from) the user's head.
  • the terminal device After determining the transmission power mode for transmitting the reference signal, the terminal device can indicate the transmission power mode to the network device, so that the network device can also poll the reference signal according to different application scenarios, which helps to realize the seamless connection between the network device and the terminal device Synergy. And when the terminal device works in the first transmit power mode, the system overhead of the network device can be saved, and when the terminal device works in the second transmit power mode, it can help to increase the transmission rate of the downlink data.
  • the transmit power of the reference signal of the first part of the antenna of the terminal device is less than or equal to a first preset value and the The transmit power of the reference signal of the second antenna of the terminal device is greater than the first preset value; in the second transmit power mode, the transmit power of the reference signal of the first antenna and the second antenna are both Greater than the first preset value.
  • the reference signal of the first part of the antenna of the terminal device in the first transmit power mode, is transmitted or not transmitted according to the first transmit power range, and The reference signal of the second part of the antenna of the terminal device is transmitted according to a second transmission power range, wherein any value in the first transmission power range is lower than any value in the second transmission power range;
  • the reference signals of the first partial antenna and the second partial antenna are transmitted according to the second transmission power range;
  • the first partial antenna and the second partial antenna send reference signals at different times.
  • the transmission power of the reference signal of the first part of the antenna in the first transmission power mode is small, or even no reference signal is transmitted, this mode can reduce the size of the terminal device when the terminal device is close to the user's head. Radiation. Since the reference signal of the first part of the antenna and the reference signal of the second part of the antenna in the second transmission power mode are relatively large, both can be transmitted at the normal transmission power, which can satisfy the requirement when the terminal device is not close to (that is, far from) the user's head The user's demand for high-speed communication rates.
  • the first part of the antenna may be a part of the antenna in the terminal device, and the second part of the antenna may be another part of the antenna in the middle terminal device except the first part of the antenna.
  • the time when the first part of the antenna sends a signal is different from the time or time-frequency resource when the second part of the antenna sends a signal.
  • the first part of the antenna may be an antenna on the terminal device that is closer to the joint, and the second part of the antenna may be an antenna on the terminal device that is farther from the head.
  • the terminal device if it is determined that the transmit power mode of the reference signal of the terminal device is the first transmit power mode, the terminal device must further determine which antennas use normal transmit power for transmission and which antennas use lower than normal transmit power for transmission , That is, you need to determine the first part of the antenna and the second part of the antenna.
  • the information of the first partial antenna and the second partial antenna can be preset in the terminal device, and the terminal device can determine which antennas are the first partial antennas and which antennas are the second partial antennas according to the information.
  • the network device may also know in advance which antennas are the first part antennas and which antennas are the second part antennas.
  • the first indication information includes one or more of the following: the number of the first partial antenna, the number of the second partial antenna, and the The identification of a part of the antenna, the identification of the second part of the antenna, the channel number of the first part of the antenna, and the channel number of the second part of the antenna.
  • the terminal device can implicitly indicate the transmission power mode to the network device.
  • the first indication information includes the identification of the first part of the antenna, or the identification of the second part of the antenna, or the channel number of the first part of the antenna, or the channel number of the second part of the antenna, it may also indicate to the network device which antennas are the first part. Part of the antenna, which antenna is the second part of the antenna.
  • the determining the transmission power mode of the reference signal of the terminal device includes:
  • the first transmit power mode can also be used on one or more frequency bands, or at least one frequency band in one or more frequency band combinations.
  • the first transmit power mode is used on.
  • the first indication information may include frequency band information, that is to say, the frequency band information may be used to indicate that the transmission power of the sounding signal in the frequency band is the first transmission power mode or the second transmission power mode.
  • the first indication information may be used to indicate that the transmission power mode is changed from the second transmission power mode to the first transmission power mode.
  • the transmission power mode of the terminal device in the scene far away from the user's head can be referred to as the standard sounding mode, and the transmission power mode of the terminal device in the scene close to the user's head Called non-standard sounding mode.
  • the first indication information can be used to indicate that the sounding signal transmission power of the terminal device will be changed from the second transmission power mode to the first transmission. Power mode, that is, change from standard sounding mode to non-standard sounding mode.
  • the first indication information may be one bit of indication information, such as "1".
  • the first indication information is used to indicate that the transmission power mode is restored from the first transmission power mode to the second transmission power mode.
  • the second indication information can be sent to the network device to indicate that the transmitting power of the sounding signal of the terminal device is restored from the first transmitting power mode.
  • the second transmit power mode that is, the non-standard sounding mode is restored to the standard sounding mode.
  • the first indication information may be one bit of indication information, such as "0".
  • the transmission power of the sounding signal on all frequency bands of the terminal device is the transmission power mode indicated by the first indication information.
  • some implementations of the first aspect further include:
  • a probe signal is transmitted according to the transmission power mode of the probe signal.
  • the network device can determine whether to agree to the terminal device to transmit the sounding signal according to the transmit power mode indicated by the first instruction information.
  • the terminal device may be instructed through a confirmation response.
  • the network device may also default that the terminal device transmits the sounding signal according to the transmit power mode indicated by the first indication information.
  • the determining the transmission power mode of the probe signal of the terminal device includes:
  • the transmit power mode is the first A transmit power mode
  • determining that the transmission power mode is the second transmission power mode .
  • some implementations of the first aspect further include:
  • the distance sensor provided on the terminal device is used to obtain the distance between the terminal device and the user's head.
  • a data transmission method including:
  • first indication information is used to indicate a transmission power mode of a reference signal of the terminal device, wherein the transmission power mode includes a first transmission power mode and a second transmission power mode,
  • the transmission power of the reference signal of the first part of the antenna in the first transmission power mode is less than the transmission power of the reference signal of the first part of the antenna in the second transmission power mode; then, according to the first indication information, the terminal is determined The beamforming weight of the device for sending downlink data.
  • this mode can help reduce the radiation of the terminal device when the terminal device is close to the user's head. Since the transmission power of the reference signal of the first part of the antenna in the second transmission power mode is large, it can help meet the user's demand for high-speed communication rates when the terminal device is not close to (that is, far from) the user's head.
  • the terminal device After determining the transmission power mode for transmitting the reference signal, the terminal device can indicate the transmission power mode to the network device, so that the network device can also poll the reference signal according to different application scenarios, which helps to realize the seamless connection between the network device and the terminal device Synergy. And when the terminal device works in the first transmit power mode, the system overhead of the network device can be saved, and when the terminal device works in the second transmit power mode, it can help to increase the transmission rate of the downlink data.
  • the BF weight of the network device corresponds to the BF weight of the first transmit power mode. If the terminal device currently uses the second transmit power mode, The sounding signal is transmitted in the transmit power mode, and the BF weight of the network device corresponds to the BF weight of the second transmit power mode. Therefore, the embodiment of the present application can match the BF weight of the network device with the transmit power mode of the terminal device. .
  • the transmit power of the reference signal of the first part of the antenna of the terminal device is less than or equal to a first preset value and the The transmit power of the reference signal of the second part of the antenna of the terminal device is greater than the first preset value;
  • the transmission power of the reference signal of the first part of the antenna and the second part of the antenna are both greater than the first preset value
  • the first part antenna and the second part antenna send reference signals at different times.
  • the reference signal of the first part of the antenna of the terminal device in the first transmit power mode, is transmitted or not transmitted according to the first transmit power range, and The reference signal of the second part of the antenna of the terminal device is transmitted according to a second transmission power range, wherein any value in the first transmission power range is lower than any value in the second transmission power range;
  • the reference signals of the first partial antenna and the second partial antenna are transmitted according to the second transmission power range
  • the first partial antenna and the second partial antenna send reference signals at different times.
  • the transmission power of the reference signal of the first part of the antenna in the first transmission power mode is small, or even no reference signal is transmitted, this mode can reduce the size of the terminal device when the terminal device is close to the user's head. Radiation. Since the reference signal of the first part of the antenna and the reference signal of the second part of the antenna in the second transmission power mode are relatively large, both can be transmitted at the normal transmission power, which can satisfy the requirement when the terminal device is not close to (that is, far from) the user's head The user's demand for high-speed communication rates.
  • the first part of the antenna and the second part of the antenna may refer to the description in the first aspect above.
  • the first indication information includes one or more of the following: the number of the first partial antenna, the number of the second partial antenna, and the The identification of a part of the antenna, the identification of the second part of the antenna, the channel number of the first part of the antenna, and the channel number of the second part of the antenna.
  • the network device can determine the transmit power mode based on the above information. Further, when the first indication information includes the identification of the first part of the antenna, or the identification of the second part of the antenna, or the channel number of the first part of the antenna, or the channel number of the second part of the antenna, the network device may also determine according to the first indication information Which antennas are the first part antennas and which are the second part antennas.
  • the first transmit power mode can also be used on one or more frequency bands, or at least one frequency band in one or more frequency band combinations.
  • the first transmit power mode is used on.
  • the first indication information can include frequency band information, that is to say, the network device can determine the transmission power of the sounding signal in the frequency band to be the first transmission power mode or the second transmission power mode according to the frequency band information. Transmit power mode.
  • the first indication information may be used to indicate that the transmission power mode is changed from the second transmission power mode to the first transmission power mode.
  • the transmission power mode of the terminal device in the scene far away from the user's head can be referred to as the standard sounding mode, and the transmission power mode of the terminal device in the scene close to the user's head Called non-standard sounding mode.
  • the first indication information can be used to indicate that the sounding signal transmission power of the terminal device will be changed from the second transmission power mode to the first transmission. Power mode, that is, change from standard sounding mode to non-standard sounding mode.
  • the first indication information may be one bit of indication information, such as "1".
  • the first indication information is used to indicate that the transmission power mode is restored from the first transmission power mode to the second transmission power mode.
  • the first indication information may be one bit of indication information, such as "0".
  • the second indication information can be sent to the network device to indicate that the transmitting power of the sounding signal of the terminal device is restored from the first transmitting power mode.
  • the second transmit power mode that is, the non-standard sounding mode is restored to the standard sounding mode.
  • the transmission power of the sounding signal in all frequency bands of the terminal device is the transmission power mode indicated by the first indication information.
  • the The first indication information that determines the beamforming weight used to send downlink data includes:
  • the network device does not need to poll the sounding signal of the first part of the antenna, which saves the system overhead of the network device and saves the signaling of the terminal device to return the PMI right. Overhead.
  • the The first indication information that determines the beamforming weight used to send downlink data includes:
  • the transmission rate of the downlink data can be increased, which helps the downlink traffic to reach the level of the TDD-MM system application.
  • the method before determining the beamforming weight for sending downlink data, the method further includes:
  • a confirmation response to the first indication information sent to the terminal device where the confirmation response is used to indicate that the network device agrees to the terminal device to use the transmit power mode to transmit the probe signal.
  • the network device can determine whether to agree to the terminal device to transmit the sounding signal according to the transmit power mode indicated by the first instruction information.
  • the terminal device may be instructed through a confirmation response.
  • the network device may also default that the terminal device transmits the sounding signal according to the transmit power mode indicated by the first indication information.
  • a wireless communication device may be a terminal device or a chip that can be used in the terminal device.
  • the device has the function of realizing the terminal device in the first aspect and various possible implementation manners. This function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the device includes a transceiver module.
  • the device further includes a processing module.
  • the transceiver module may be, for example, at least one of a transceiver, a receiver, and a transmitter.
  • the transceiver module may include a radio frequency circuit or an antenna.
  • the processing module may be a processor.
  • the device further includes a storage module, and the storage module may be a memory, for example. When a storage module is included, the storage module is used to store instructions or data. In a possible manner, the processing module is connected to the storage module, and the processing module can execute the instructions stored in the storage module or from other instructions, so that the device executes the first aspect and various possible implementation manners. Communication method.
  • the chip when the device is a chip, the chip includes a transceiver module.
  • the device also includes a processing module.
  • the transceiver module may be, for example, an input/output interface or pin on the chip. Or circuits, etc.
  • the processing module may be a processor, for example.
  • the processing module enables the chip to implement the foregoing first aspect and any possible implementation methods.
  • the processing module may execute instructions in the storage module or call information such as data in the storage module, and the storage module may be a storage module in the chip, such as a register, a cache, and the like.
  • the storage module may also be located in the communication device but outside the chip, such as read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (random access memory) memory, RAM) etc.
  • ROM read-only memory
  • RAM random access memory
  • the processor mentioned in any of the above can be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more for controlling the above
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • a wireless communication device may be a network device or a chip that can be used in the network device.
  • the device has the function of realizing the above second aspect and any possible implementation of the second aspect of the network device. This function can be realized by hardware, or by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the device includes a transceiver module.
  • the device further includes a processing module.
  • the transceiver module may be, for example, at least one of a transceiver, a receiver, and a transmitter.
  • the transceiver module may include a radio frequency circuit or an antenna.
  • the processing module may be a processor.
  • the device further includes a storage module, and the storage module may be a memory, for example. When a storage module is included, the storage module is used to store instructions or data.
  • the processing module is connected to the storage module, and the processing module can execute instructions stored in the storage module or instructions derived from other sources, so that the device executes the above second aspect and any of the second aspects. The method of realization.
  • the chip when the device is a chip, the chip includes a transceiver module.
  • the chip also includes a processing module.
  • the transceiver module may be, for example, an input/output interface or pin on the chip. Or circuits, etc.
  • the processing module may be a processor, for example.
  • the processing module enables the chip to implement the foregoing second aspect and any possible implementation communication method of the second aspect.
  • the processing module may execute instructions in the storage module or call information such as data in the storage module, and the storage module may be a storage module in the chip, such as a register, a cache, and the like.
  • the storage module may also be located in the communication device but outside the chip, such as read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (random access memory) memory, RAM) etc.
  • ROM read-only memory
  • RAM random access memory
  • the processor mentioned in any of the above can be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more for controlling the above
  • CPU central processing unit
  • ASIC application-specific integrated circuit
  • a computer storage medium is provided, and program code is stored in the computer storage medium, and the program code is used to instruct to execute the foregoing first aspect or second aspect and any possible implementation of the first aspect or second aspect The instruction of the method in the way.
  • a computer program product containing instructions which when running on a computer, causes the computer to execute the method in any possible implementation of the first aspect or the second aspect and the first aspect or the second aspect .
  • a communication system in a seventh aspect, includes a device capable of implementing the methods and various possible designs of the foregoing first aspect, and the foregoing device capable of implementing the various methods and various possible designs of the foregoing second aspect. Functional device.
  • a processor configured to be coupled with a memory, and configured to execute the foregoing first aspect or second aspect and any possible implementation manner of the first aspect or second aspect.
  • a chip in a ninth aspect, includes a processor and an interface circuit.
  • the interface circuit is used to receive signals from communication devices other than the communication device and transmit them to the processor or from the communication device.
  • the signal of the processor is sent to another communication device other than the communication device, and the processor is used to implement the first aspect or the second aspect and any of the first aspect or the second aspect through a logic circuit or an execution code instruction.
  • the chip may further include a memory in which instructions are stored, and the processor is configured to execute instructions stored in the memory or instructions derived from other sources.
  • the processor is used to implement the foregoing first aspect or second aspect and any possible implementation manner of the first aspect or second aspect.
  • the chip can be integrated on terminal equipment or network equipment.
  • Fig. 1 shows a schematic diagram of a communication system suitable for embodiments of the present application.
  • Fig. 2 shows a schematic flowchart of a data transmission method provided by an embodiment of the present application.
  • Fig. 3 shows a schematic diagram of a data transmission device provided in an embodiment of the present application.
  • Fig. 4 shows a schematic diagram of a data transmission device provided by an embodiment of the present application.
  • Fig. 5 shows a schematic structural diagram of a terminal device provided by the present application.
  • FIG. 6 is a schematic structural diagram of a network device provided by an embodiment of this application.
  • GSM global system for mobile communications
  • CDMA code division multiple access
  • WCDMA broadband code division multiple access
  • GPRS general packet radio service
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD LTE Time division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX worldwide interoperability for microwave access
  • FIG. 1 shows a schematic diagram of a communication system 100 applicable to the communication method and communication device of the embodiments of the present application.
  • the communication system 100 may include one or more network devices, such as the network device 110 shown in FIG. 1; the communication system 100 may also include one or more terminal devices, such as the terminal shown in FIG. Equipment 120.
  • the network device 110 and the terminal device 120 may communicate through a wireless link.
  • Each communication device such as the network device 110 or the terminal device 120 in FIG. 1, may be configured with multiple antennas.
  • the plurality of antennas may include at least one transmitting antenna for transmitting signals and at least one receiving antenna for receiving signals.
  • each communication device additionally includes a transmitter chain and a receiver chain.
  • network devices and/or terminal devices may include multiple components related to signal transmission and reception (for example, Processor, modulator, multiplexer, demodulator, demultiplexer or antenna, etc.). Therefore, multiple antenna technology can be used to communicate between network devices and terminal devices.
  • the network device in the wireless communication system may be any device with a wireless transceiver function.
  • This equipment includes, but is not limited to: evolved node B (evolved node B, eNB), radio network controller (RNC), node B (node B, NB), base station controller (base station controller, BSC) , Base transceiver station (BTS), home base station (for example, home evolved nodeB, or home node B, HNB), baseband unit (BBU), wireless fidelity (wireless fidelity, WIFI) system Access point (AP), wireless relay node, wireless backhaul node, transmission point (TP) or transmission and reception point (TRP), etc., can also be 5G, such as NR ,
  • BBU baseband unit
  • BBU baseband
  • the gNB may include a centralized unit (CU) and a DU.
  • the gNB may also include a radio unit (RU).
  • CU implements some functions of gNB
  • DU implements some functions of gNB, for example, CU implements radio resource control (radio resource control, RRC), packet data convergence protocol (packet data convergence protocol, PDCP) layer functions
  • DU implements wireless link
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • DU implements wireless link
  • RLC radio link control
  • MAC media access control
  • PHY physical
  • the network device may be a CU node, or a DU node, or a device including a CU node and a DU node.
  • the CU can be divided into network equipment in an access network (radio access network, RAN), and the CU can also be divided into network equipment in a core network (core network, CN), which is not limited in this application.
  • the terminal equipment in the wireless communication system may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile equipment, User terminal, terminal, wireless communication device, user agent or user device.
  • the terminal device in the embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, and an augmented reality (AR) terminal Equipment, wireless terminals in industrial control, wireless terminals in unmanned driving (self-driving), wireless terminals in remote medical, wireless terminals in smart grid, transportation safety ( Wireless terminals in transportation safety, wireless terminals in smart cities, and wireless terminals in smart homes.
  • the embodiment of this application does not limit the application scenario.
  • the number of transmitting and receiving antennas of the terminal device is not equal.
  • all antennas of the terminal device can be used to receive downlink data from the network device, and some of the antennas can be used for Send uplink data to network equipment.
  • the 4 antennas can be configured as 2 transmit and 4 receive (2T4R) mode.
  • the 8 antennas can be configured as 4 transmit and 8 receive (4T8R). mode.
  • Terminal devices with unequal numbers of transmitting and receiving antennas can be classified into antenna selection terminals and non-antenna selection terminals.
  • the antenna selection terminal can select the antenna used for transmission, for example, select the antenna used for transmission through a radio frequency switch, so that the transmission channels of these antennas are available or closed.
  • the non-antenna selection terminal cannot perform antenna selection due to the lack of an antenna selection switch, and the antenna used for transmission is fixed.
  • the terminal device can select different antennas on different time-frequency resources to transmit reference signals using the same transmit power range, and the network device receives the reference signals on the corresponding time-frequency resources, and according to the received reference signals Perform channel estimation, beamforming and other processing to complete the downlink data transmission. This process can also be called polling.
  • the terminal device can select antenna 0 and 1 on time-frequency resource 1 to transmit reference signals, and on time-frequency resource 2 to choose antenna 2 and 3 to transmit
  • antennas 0 and 2 are selected to transmit reference signals on time-frequency resource 3, that is, on different time-frequency resources, two antennas are selected for transmitting reference signals each time.
  • the transmission power of the reference signals received by the network equipment on different time-frequency resources may be different, the channel estimation results may also be different, and the transmission rate of data transmission may also change. It should be noted that this is only an example, and similar methods can be used for other numbers of antennas and transmission modes, and this is not a limitation.
  • the antenna selection terminal may adaptively change the transmission power of the reference signal of the selected antenna for transmission according to different application scenarios.
  • the antenna of the antenna selection terminal can be divided into at least two parts, the first part of the antenna and the second part of the antenna.
  • the first part of the antenna may be a part of the antenna in the terminal device, and the second part of the antenna may be another part of the antenna in the middle terminal device except the first part of the antenna.
  • the time when the first part of the antenna sends a signal is different from the time or time-frequency resource when the second part of the antenna sends a signal.
  • time-frequency resources usually include time or frequency resources, or resources jointly determined by time and frequency.
  • the first part of the antenna can include antennas 0 and 1
  • the second part of the antenna includes 2 and 3
  • the first part of the antenna includes 0 and 2
  • the second part of the antenna includes antenna 1.
  • the first part of the antenna may be any part of the antenna of the terminal device
  • the second part of the antenna may be another part of the antenna of the terminal device except the first part of the antenna.
  • the terminal device can select some or all of the first antennas to transmit signals on the first time-frequency resource, and select some or all of the second antennas on the second time-frequency resource to transmit signals, and poll .
  • the antenna selection terminal can determine according to the scenario that the first part of the antennas does not send the reference signal when polling the transmission reference signal, or transmits the reference signal at a transmission power lower than the normal transmission power range, and the second part of the antenna is polling When transmitting the reference signal, the reference signal is transmitted according to the transmission power within the normal transmission power range.
  • the reference signal of the terminal device can be divided into the following two modes:
  • This mode can also be called non-standard sounding mode.
  • the first part of the antenna in the terminal device transmits a sounding signal with a lower power when being polled or selected for transmission, or does not transmit a sounding signal (that is, the transmit power of the sounding signal is 0), and
  • the second part of the antenna of the terminal device can transmit the sounding signal according to the normal transmit power when it is polled or selected for transmission.
  • the sounding signal's transmit power is less than or equal to the first preset value
  • the terminal device selects the second part of the antenna as the transmit antenna the sounding signal The transmission power of the signal is greater than the first preset value.
  • the transmit power of the sounding signal when the terminal device selects the first part of the antenna as the transmit antenna is less than the transmit power of the sounding signal when the terminal device selects the second part of the antenna as the transmit antenna.
  • the transmit power of the sounding signal of the first antenna part belongs to the first transmit power range
  • the transmit power of the sounding signal of the second antenna part belongs to the second transmit power range.
  • Any power value in the transmission power range is less than any power value in the second transmission power range.
  • the transmitting power of the second part of the antenna is usually within the normal transmitting power range or interval, and the transmitting power of the first part of the antenna is lower than the normal transmitting power range or interval, or even not transmitting.
  • the network device in the first transmit power mode, only receives the sounding signal transmitted by the second part of the antenna.
  • the network device may only receive the sounding signal transmitted by the second antenna on the time-frequency resource transmitted by the second antenna, and perform processing such as signal estimation.
  • the network equipment may not receive the sounding signal in the time-frequency resources transmitted by the first part of the antenna.
  • the terminal equipment in the first transmit power mode can also be degenerated into a non-antenna terminal mode.
  • the first part of the antenna After the first part of the antenna is determined, only the second part of the antenna transmits the sounding signal.
  • the antenna does not transmit signals, nor does it participate in polling.
  • the first part of the antenna does not occupy the corresponding time-frequency resources to transmit signals.
  • the network device can use this resource to poll other terminal devices.
  • the difference between the fixed two antennas and non-transmission of ordinary non-antenna terminals is that the first part of the antenna, that is, the antenna that does not participate in polling, is determined by the terminal device itself according to application scenarios.
  • the first preset value, or the first transmission power range and the second transmission power range may be stipulated by an agreement or may be instructed by a network device, which is not limited in the embodiment of the present application.
  • the transmit power of the normal sounding signal of the antenna may be 23 dbm.
  • the first preset value can be set to 16dbm, 17dbm or 18dbm.
  • the transmission power of the first transmission power range may be [22dbm, 24dbm]
  • the transmission power of the second transmission power range may be [0,18dbm]. It should be noted that the above values are only examples, and the implementation of this application Examples are not limited to this.
  • the terminal device working in this mode can reduce the radiation to the user and meet the requirements of IEEE or
  • the ICNIRP electromagnetic standard is suitable for scenarios where the terminal equipment is close to the user's head. For example, a scenario where a user makes a voice call in a non-hands-free mode. In the scenario where the terminal device is close to the user's head, for example, the user makes a voice call. At this time, only the communication rate of the user's voice call needs to be guaranteed. Generally, the communication rate of the voice call is lower than the communication rate of high-speed data.
  • the device uses the first transmit power mode to transmit sounding signals, which can not only reduce the radiation to the user, but also meet the user's voice call needs.
  • the first part of the antenna can be the antenna on the terminal device that is closer to the connector, such as the k1 antenna (upper antenna) set on the upper end of the terminal device, or the k1 antenna set on the left half of the terminal device
  • the second part of the antenna can be an antenna on the terminal device that is farther away from the head, such as k2 antennas (lower half antenna) set at the lower end of the terminal device, or k2 antennas set on the right half of the terminal device, where k2 Is a positive integer. It should be noted that this is only an example for illustration and is not a limitation. In practical applications, the first part of the antenna and the second part of the antenna may also be divided in other ways.
  • the number of antennas in the first part and the number of antennas in the second part may be the same or different, which is not limited in the embodiment of the present application.
  • the first transmit power mode can also be used on one or more frequency bands, or in one or more frequency band combinations.
  • the first transmit power mode is used in at least one frequency band.
  • the terminal supports band 1, band 2, and band 3.
  • the terminal device can determine to use the first transmit power mode on band 1, that is, when the first part of the antenna transmits the reference signal, only use band 1 with lower than normal transmit power
  • the reference signal is sent horizontally, and the reference signal is still sent at the normal transmission power in other frequency bands, and when the second part of the antenna sends the reference signal, the reference signal is sent at the normal transmission power in all frequency bands.
  • the terminal supports band 1, band 2, and band 3.
  • band combination 1 band 1, band 2 and band combination 2 (band 1, band 3) can be supported.
  • 1 uses the first transmit power mode, and when in band combination 2, even band 1 still uses the second transmit power mode to transmit the reference signal.
  • the first transmit power mode can be used on multiple frequency bands, or the first transmit power mode can be used on multiple frequency bands in a combination of multiple frequency bands. Limited to this, not one by one.
  • This mode can also be called standard sounding mode.
  • the first part of the antenna and the second part of the antenna in the terminal device can both transmit the sounding signal according to the normal transmission power when they are polled or selected for transmission. That is to say, in the second transmit power mode, when the terminal device selects the first part of the antenna as the transmit antenna, the sounding signal's transmit power is greater than the first preset value, and when the terminal device selects the second part of the antenna as the transmit antenna, the sounding signal The transmit power of is also greater than the first preset value.
  • the transmit power of the sounding signal when the terminal device selects the first part of the antenna as the transmit antenna is equivalent to the transmit power of the sounding signal when the terminal device selects the second part of the antenna as the transmit antenna ( Same or similar).
  • the transmit power of the sounding signal when the terminal device selects the first antenna as the transmit antenna is the same as the transmit power of the sounding signal when the terminal device selects the second antenna as the transmit antenna.
  • the network device polls the sounding signal transmitted by the first antenna and the second antenna. That is to say, when the terminal device uses the first part of the antenna to transmit the sounding signal, the network device polls the sounding signal transmitted by the first part of the antenna, that is, receives the sounding signal from the first time-frequency resource, and performs processing such as channel estimation; When the terminal device uses the second part of the antenna to transmit the sounding signal, the network device polls the sounding signal transmitted by the second part of the antenna, that is, receives the sounding signal on the second time-frequency resource, and performs processing such as channel estimation.
  • the transmit power of the sounding signal of all antennas in the terminal device in this mode is the same or close, It helps to improve the accuracy of channel measurement, and in turn, helps make the downlink data transmission rate reach the level expected by a time-division duplex massive-MIMO (TDD-MM) system.
  • TDD-MM time-division duplex massive-MIMO
  • the second transmission power mode can be applied to the terminal device not close to (that is, far from) the user's head Scenes.
  • a scene where the user equipment is not close to the user's head such as a scene where the user makes a voice call in a hands-free mode, or a scene where the user watches a video or a game.
  • the terminal device adopts the second transmit power mode to transmit the sounding signal, which meets the user's demand for high-speed communication rate, and has a small radiation impact on the user.
  • the terminal device in the embodiment of this application can select whether the first part of the antenna needs to transmit sounding signals or transmit sounding signals at low power according to the application scenario. Therefore, the solution in the embodiment of this application is suitable for terminal devices capable of antenna selection. That is, Tian Xuan terminal.
  • the terminal device determines the transmit power mode of the terminal device, for example, it may be determined according to one or more of the following parameters: the distance between the terminal device and the user's head, the application scenario of the terminal device, and so on.
  • the application scenarios of the terminal device may include: call scenarios, video scenarios, game scenarios, and so on.
  • the terminal device may determine the transmit power mode of the terminal device according to the distance between the terminal device and the user's head, and/or the call scene of the terminal device.
  • the call scene includes: a short-distance call scene (such as a non-hands-free call scene) and a hands-free call scene.
  • the sounding signal transmit power mode of the terminal device is The first transmit power mode described above. That is, the distance between the terminal device and the user's head is less than or equal to the second preset value, or the terminal device is in a non-hands-free call scene, or the distance between the terminal device and the user's head is less than or equal to the second preset value And when the terminal device is in a non-hands-free call scenario, it is determined that the transmission power of the sounding signal of the terminal device is the above-mentioned first transmission power mode.
  • the sounding signal transmission power mode of the terminal device is the above-mentioned first 2. Transmit power mode. That is, the distance between the terminal device and the user's head is greater than the second preset value, or the terminal device is in a hands-free call scenario, or the distance between the terminal device and the user's head is greater than the second preset value and is in a hands-free call. In a scenario, it is determined that the transmitting power of the sounding signal of the terminal device is the above-mentioned second transmitting power mode.
  • the distance between the terminal device and the user's head may refer to the distance between the terminal device and the position of the user's head closest to the terminal device.
  • the distance may be the distance between the terminal device and the ear of the user close to the terminal device.
  • the distance between the terminal device and the user's head can be obtained through a distance sensor provided on the terminal device.
  • the first transmit power mode may be used to transmit the sounding signal.
  • the second transmit power mode can be used to transmit the sounding signal, that is, the distance between different positions on the terminal device The transmitting power of the sounding signal of the antenna is the same.
  • the distance sensor may be a P-sensor distance sensor.
  • the P-sensor distance sensor is usually set in a mobile phone (an example of a terminal device) to collect the distance between the mobile phone and the user’s ear. If the distance between the mobile phone and the user’s ear exceeds a critical value, the phone’s screen will be turned off and no longer receive The user touches the screen event to prevent misoperations such as accidentally hanging up the phone.
  • the P-sensor distance sensor can be used to detect the distance between the terminal device and the user's head, so as to determine which transmission power mode is used to transmit the sounding signal according to the detection result.
  • the P-sensor distance sensor is taken as an example for description, but the embodiment of the application is not limited to this.
  • any sensor in the current terminal device that can detect the relative position of the user's head and the terminal device can be used to obtain the terminal device and the user The distance to the head.
  • the second preset value may be specified by a protocol or indicated by a network device, which is not limited in the embodiment of the present application.
  • the second preset value can be set to 2cm, 3cm or 4cm.
  • the value is only taken as an example, and the embodiment of the present application is not limited to this.
  • the embodiments of the present application can adaptively change the transmission power of these antennas when sending reference signals by selecting corresponding antennas according to different application scenarios of the terminal device, thereby reducing the radiation of the terminal device, which is helpful when the terminal device is far away from the user's head In order to make the transmission rate of the downlink data reach the level that TDD-MM should have.
  • the terminal device after the terminal device determines the transmission power mode of the sounding signal, the terminal device can indicate the transmission power mode to the network device, so that the network device can also poll the sounding signal according to different application scenarios to ensure that the network device and Collaboration of terminal equipment.
  • the interaction process between the terminal device and the network device will be described in detail below with reference to the drawings.
  • a data transmission process of a terminal device is taken as an example to describe the embodiments of the present application in detail. It can be understood that any terminal device in the wireless communication system or the chip configured in the terminal device can perform data transmission based on the same method, and any network device in the wireless communication system or the chip configured in the network device can be Data transmission can be performed based on the same method, which is not limited in this application.
  • FIG. 2 shows a schematic flowchart of a data transmission method 200 according to an embodiment of the present application. As shown in FIG. 2, the method 200 may include step 210 to step 230. Each step in the method 200 will be described in detail below with reference to FIG. 2.
  • Step 210 The terminal device determines a transmission power mode of a reference signal of the terminal device, where the transmission power mode includes a first transmission power mode and a second transmission power mode. Wherein, the transmission power of the reference signal of the first part of the antenna in the first transmission power mode is less than the transmission power of the reference signal of the first part of the antenna in the second transmission power mode.
  • the first transmission power mode is that the transmission power of the reference signal of a part of the antenna of the terminal device is less than or equal to the first preset value and the transmission power of the reference signal of the other part of the antenna is greater than the first preset value, or, The first transmission power mode is that the transmission power of the reference signal of a part of the antenna of the terminal device is less than the transmission power of the reference signal of the other part of the antenna.
  • the first transmission power mode is that the transmission power of the reference signal of a part of the antenna belongs to the first transmission power range, and the transmission power of the reference signal of the other part of the antenna belongs to the second transmission power range, wherein any power in the first transmission power range The value is less than any power value in the second transmission power range.
  • the part of the antenna here may be the first part of the above antenna
  • the other part of the antenna may be the second part of the upper antenna
  • the reference signal may be the above sounding signal, where the first part of the antenna and the second part of the antenna are used
  • the time or time-frequency resource for transmitting the reference signal is different.
  • the second transmit power mode is that the transmit power of the reference signal of all the antennas of the terminal device (that is, including the "part of the antenna” and “the other part of the antenna”, that is, the first part of the antenna and the second part of the antenna) are greater than the first preset Value of the second transmission power mode, or the second transmission power mode is that all antennas of the terminal device use the same or similar transmission power to transmit the reference signal, or the transmission power of the reference signal of all the antennas of the terminal device belongs to the same transmission power range, For example, the above-mentioned second transmission power range.
  • the terminal device if it is determined that the transmission power mode of the reference signal of the terminal device is the first transmission power mode, the terminal device must further determine which antennas use normal transmission power for transmission and which antennas use lower than normal transmission power for transmission. That is, the first part of the antenna and the second part of the antenna need to be determined.
  • the information of the first partial antenna and the second partial antenna may be preset in the terminal device, and the terminal device may determine which antennas are the first partial antennas and which are the second partial antennas according to the information.
  • the network device may also know in advance which antennas are the first part antennas and which antennas are the second part antennas.
  • the upper part of the antenna of the terminal device can be considered as the first part of the antenna
  • the lower part of the antenna can be considered as the second part of the antenna
  • the upper left antenna and the lower right antenna of the terminal device can be considered as the first part
  • the antenna, the upper right antenna and the lower left antenna are the second part of the antenna.
  • the terminal device can also determine the first part of the antenna and the second part of the antenna according to the application scenario. For example, in an application scenario closer to the user's head, the antenna closer to the user's head can be selected. As the first part of the antenna (for example, the left half of the antenna), the other antennas are used as the second part of the antenna (for example, there is a half of the antenna). It should be noted that this is only an example, not limited to this.
  • the terminal device may indicate to the network device which antennas are the first partial antennas and which antennas are the second partial antennas.
  • the terminal device may reduce the transmission power of the first part of the antenna or not send the reference signal on the first part of the antenna.
  • the terminal device may determine the transmit power of the sounding signal of the first part of the antenna according to a first preset value or a first transmit power range set in advance.
  • the terminal device can restore the transmission power to the first part of the antenna or resume sending the reference signal.
  • the terminal device may not distinguish between the first part of the antenna and the second part of the antenna, and transmit all the antennas at the same transmit power, so that the step of determining the first part of the antenna and the second part of the antenna may not be included.
  • the terminal device can determine the transmission power mode of the reference signal on one or more frequency bands, and can also determine the transmission of the reference signal on one or more frequency bands in each frequency band combination in one or more frequency band combinations. Power mode.
  • step 210 that is, the terminal device determines the transmission power mode of the reference signal of the terminal device, and the determination of the distance can refer to the above description, and for brevity, it will not be repeated here.
  • Step 220 The terminal device sends first indication information to the network device, where the first indication information is used to indicate the transmit power mode. Correspondingly, the network device receives the first indication information.
  • the terminal device may determine to transmit the sounding signal according to the first transmission power mode, or transmit the sounding signal according to the second transmission power mode, and indicate the selected device to the network device through the first indication information The transmit power mode of the sounding signal.
  • the first indication information may display indicating the first transmission power mode or the second transmission power mode, for example, using different numbers, such as "0" for the first transmission power mode, and "1" for the first transmission power mode.
  • the second transmit power mode may display indicating the first transmission power mode or the second transmission power mode, for example, using different numbers, such as "0" for the first transmission power mode, and "1" for the first transmission power mode.
  • the second transmit power mode may display indicating the first transmission power mode or the second transmission power mode, for example, using different numbers, such as "0" for the first transmission power mode, and "1" for the first transmission power mode.
  • the second transmit power mode may display indicating the first transmission power mode or the second transmission power mode, for example, using different numbers, such as "0" for the first transmission power mode, and "1" for the first transmission power mode.
  • the second transmit power mode may display indicating the first transmission power mode or the second transmission power mode, for example, using different numbers, such as "0" for the first transmission power mode, and "1
  • the first indication information may also include the number of the first part of the antenna, the number of the second part of the antenna, or the number of the first part of the antenna and the number of the second part of the terminal device (or may also be expressed as The total number of antennas).
  • the terminal device can indicate the number of the first part of the antenna to the network device, that is, the number of antennas that transmit the reference signal at a lower than normal transmit power to the network device, and the network device can determine the number of antennas indicated Whether the terminal device is in the first transmit power mode.
  • the terminal device may indicate the number of the second part of the antenna to the network device, that is, indicate the number of antennas that transmit the reference signal at normal transmission power to the network device, and the network device determines whether the terminal device is at the first transmission power according to the indicated number of antennas mode.
  • the terminal device can indicate the number of the first part of the antenna and the number of the second part of the antenna (or the number of the total antenna) to the network device, that is, the antenna that transmits the reference signal at the normal transmission power The number is indicated to the network device, and the network device determines whether the terminal device is in the first transmission power mode according to the indicated number of antennas.
  • the terminal device has 4 antennas 0,1,2,3,2T4R.
  • the second transmit power mode all 4 antennas participate in the polling of the transmitted reference signal according to the normal transmit power.
  • the terminal device can indicate to the network device The number of antennas is 4.
  • the network device determines that the terminal device is in the second transmission power mode, that is, the four antennas all transmit the reference signal at the normal transmission power.
  • the first transmit power mode the number of the first part of the antenna (0 and 1) is lower than the normal transmit power or no reference signal is sent, indicating to the network device that the number of antennas is 2.
  • the network device After the network device receives the instruction information, it determines that the terminal device is In the first transmit power mode, there are two antennas whose transmit power is lower than the normal transmit power to participate in the polling of the transmit reference signal or do not transmit the reference signal. Of course, at this time, it can also be agreed that the number of antennas in the indication information is the number of the second part of the antenna, and the network device can also determine that the terminal device is in the first transmit power mode.
  • the first indication information may also include the identification of the first part of the antenna, or the identification of the second part of the antenna.
  • the first indication information may include the channel number of the first part of the antenna or the channel number of the second part of the antenna.
  • the network device may not poll the sounding signal transmitted by the first part of the antenna, but poll the sounding signal transmitted by the second part of the antenna Signal, which can save the system overhead of network equipment. Further, the system overhead saved by the network device on the terminal device can be used for sounding signals of other terminal devices. If the terminal device works in the second transmit power mode, the network device can poll the sounding signals transmitted by the first antenna and the second antenna.
  • the first part of the antenna and the second part of the antenna may be agreed upon by the terminal device and the network device and set in the terminal device in advance, or the terminal device may also indicate the first part of the antenna or the second part to the network device through the second indication information Antenna information, such as antenna number or channel number, etc.
  • the terminal device can also indicate to the network device the transmit power or the transmit power level of the first antenna, or the difference between the transmit power of the first antenna and the transmit power of the second antenna, or the transmit power through the third indication information. Level difference, etc.
  • the second indication information and/or the third indication information may be sent together with the first indication information, or may be sent separately, but the embodiment of the present application is not limited to this.
  • the terminal device after determining the transmission power mode of the sounding signal, the terminal device can indicate the transmission power mode to the network device, so that the network device can also poll the sounding signal according to different application scenarios, which is helpful to achieve Seamless collaboration between network equipment and terminal equipment. And when the terminal device works in the first transmit power mode, the system overhead of the network device can be saved, and when the terminal device works in the second transmit power mode, it can help to increase the transmission rate of the downlink data.
  • the first indication information may be used to indicate that the transmission power mode of the sounding signal of the terminal device is changed from the second transmission power mode to the first transmission power mode.
  • the terminal device is usually in a scenario far away from the user's head, so the second transmit power mode in the scenario where the terminal device is far away from the user's head can be called the standard sounding mode, and the terminal device is placed near the user's head.
  • the first transmit power mode in the scene is called the non-standard sounding mode.
  • the first indication information can be sent to the network device to indicate that the transmission power of the sounding signal of the terminal device will be changed from the second transmission power mode to the first transmission power mode, that is, the standard sounding The mode is changed to non-standard sounding mode.
  • the first indication information may be one-bit indication information, such as "1", to indicate that the transmission power mode of the sounding signal of the terminal device is changed from the second transmission power mode to the first transmission power mode.
  • the first indication information may be used to indicate that the transmission power mode of the sounding signal of the terminal device is restored from the first transmission power mode to the second transmission power mode.
  • the first indication information may be sent to the network device, the first indication information is used to indicate that the sounding signal transmission power of the terminal device is restored from the first transmission power mode to the second transmission power Mode, that is, the non-standard sounding mode is restored to the standard sounding mode.
  • the first indication information may be one-bit indication information, such as "0", to indicate that the sounding signal transmission power mode of the terminal device is restored from the first transmission power mode to the second transmission power mode.
  • the first indication information includes information about a band where the reference signal is located.
  • the terminal device can generally support one or more frequency bands, and the terminal device can support the first transmission power mode or the second transmission power mode on some frequency bands.
  • the frequency band information may be used to indicate that the transmission power of the sounding signal on the frequency band is the first transmission power mode or the second transmission power mode.
  • the terminal device antenna is configured in the 2T4R mode.
  • the terminal device determines that the transmission power of the sounding signal on the frequency band #2 is the first transmission power mode, it can indicate the frequency band #2 and the number "0" to the network device. After receiving the indication information, it is determined that the terminal device is in the first transmit power mode on frequency band #2.
  • the terminal device determines that the transmit power of the sounding signal on frequency band #2 is the second transmit power mode, it can indicate frequency band #2 and the number "1" to the network device.
  • the network device receives the indication information, it determines that the terminal device is in Band #2 is the second transmit power mode.
  • the terminal device when the first indication information is the information of the frequency band where the sounding signal is located, it can indicate that the transmission power of the sounding signal of the terminal device in the frequency band is changed from the second transmission power mode to the first transmission power mode . That is to say, the terminal device can implicitly indicate the transmission power of the sounding signal in the frequency band from the second transmission power mode to the first transmission power mode through the frequency band information.
  • the terminal device may support data transmission in frequency band #1, frequency band #2, and frequency band #3, and support the use of the first transmission power mode or the second transmission power mode for sounding signal transmission on the three frequency bands.
  • the terminal device indicates the information of frequency band #2 to the network device, it can implicitly instruct the terminal device to determine that the transmission power of the sounding signal on frequency band #2 changes from the second transmission power mode to the first transmission power mode.
  • the first indication information may include frequency band information and the number of antennas to indicate which frequency band or frequency bands the sounding signal transmit power mode is.
  • the frequency band information may include information about one or more frequency bands, or information about a combination of one or more frequency bands, and the number of antennas includes the number of antennas in the first part, the number of antennas in the second part, or the total number of antennas.
  • the frequency band or frequency band combination can be referred to the above description.
  • the terminal device antenna is configured in 2T4R mode.
  • the terminal device determines that the transmission power of the sounding signal on frequency band #2 is the first transmission power mode, it can indicate frequency band #2 to the network device, and the number of antennas is 2 (that is, the number of antennas is 2). Part of the number of antennas or the second part of the number of antennas), after receiving the indication information, the network device determines that the terminal device is in the first transmit power mode on frequency band #2.
  • the terminal device determines that the transmit power of the sounding signal on the frequency band #2 is the second transmit power mode, it can indicate the frequency band #2 to the network device and the number of antennas is 4 (the number of the first part of the antenna and the second part of the antenna The number can also be indicated as (2, 2)).
  • the network device determines that the terminal device is in the second transmit power mode on frequency band #2.
  • the transmission power of the sounding signal of the terminal device in the frequency band is the transmission power mode indicated by the first indication information.
  • the transmit power of the sounding signal in other frequency bands other than this frequency band can be unchanged.
  • the terminal device does not indicate the frequency band of the sounding signal to the network device, it can be considered that the transmission power of the sounding signal on all frequency bands of the terminal device is the transmission power mode indicated by the first indication information, but the embodiment of the present application Not limited to this.
  • the first indication information may be carried in a radio resource control (radio resource control, RRC) message, or carried in a medium access control control element (MAC CE), or It is carried in physical layer uplink signaling (uplink control information, UCI), which is not limited in the embodiment of the present application.
  • RRC radio resource control
  • MAC CE medium access control control element
  • UCI uplink control information
  • the network device may default that the terminal device transmits the sounding signal according to the transmission power mode indicated by the first indication information.
  • the network device may determine whether to agree to the terminal device to transmit the sounding signal according to the transmit power mode indicated by the first instruction information. At this time, the network device may send a response message for the first indication information.
  • the network device may agree that the terminal device transmits the sounding signal according to the transmit power mode indicated by the first indication information.
  • the response message may be a confirmation response to the first indication information. Instructing the network device to agree to the terminal device to use the transmit power mode indicated by the first instruction information to transmit the reference signal.
  • the terminal device After receiving the confirmation response, the terminal device starts to transmit the reference signal according to the transmission power mode indicated by the first indication information.
  • the network device may disagree that the terminal device transmits the sounding signal according to the transmit power mode indicated by the first indication information.
  • the response message may be an unacknowledged response to the first indication information.
  • the non-confirmation response is used to indicate that the network device does not agree with the terminal device to use the transmit power mode indicated by the first indication information to transmit the reference signal.
  • the terminal device can continue to transmit the reference signal in the original transmit power mode.
  • the terminal device after determining the transmission power mode of the sounding signal, the terminal device can indicate the transmission power mode to the network device, so that the network device can also poll the sounding signal according to different application scenarios, which is helpful to achieve Seamless collaboration between network equipment and terminal equipment. And when the terminal device is working in the first transmit power mode, the system overhead of polling sounding signals of the network device can be saved, and when the terminal device is working in the second transmit power mode, it can help increase the transmission rate of downlink data. .
  • Step 230 The network device determines the beamforming (BF) weight of the terminal device for sending downlink data according to the first indication information.
  • BF beamforming
  • the BF weight of the network device corresponds to the BF weight of the first transmit power mode, if the terminal device currently uses the second transmit power If the sounding signal is transmitted in the mode, the BF weight of the network device corresponds to the BF weight of the second transmission power mode, so that the BF weight of the network device matches the transmission power mode of the terminal device.
  • the network device may degenerate the terminal device to use the second part of the antenna to receive The corresponding sounding weight or purely static weight when the signal is received without using the first part of the antenna is determined as the BF weight.
  • the network device when the first transmit power mode is adopted, the network device can be determined as the BF weight according to the second antenna reception and transmission, that is, the corresponding detection right or pure static weight in 2T2R, where the detection right It is determined by the network device based on the detected sounding signal passing through the second part of the antenna, and the purely static weight is the beam weight obtained by the network device through beam scanning.
  • detection rights or purely static rights can refer to the prior art.
  • the terminal device when it adopts the first transmit power mode, that is, the power of the sounding signal transmitted by the upper 2 antennas of the terminal device is low, or the sounding signal is not transmitted, and the lower 2 antennas normally transmit
  • the terminal device when sounding the signal, as long as the low-rate communication required by the user is satisfied, the terminal device can be degenerated to only use the next two antennas for reception.
  • the BF weight of the network device for the terminal device is also degraded to 2R (That is, only use the next 2 antennas for reception) corresponding to the sounding right or purely static right.
  • the network device may indicate according to the outer static weight and the inner precoding matrix (precoding matrix). indicator, PMI) weight to determine the BF weight.
  • the BF weight may be the product of the outer static weight and the inner PMI weight.
  • the outer static weight is the beam weight obtained by the network device through beam scanning, and the inner PMI weight is transmitted back by the terminal device to the network device.
  • the outer static rights and the inner PMI rights can refer to the prior art.
  • the terminal device when it adopts the second transmit power mode, that is, when the 4 antennas of the terminal device are all transmitting sounding signals normally, the terminal device can obtain the inner static power through beam scanning and receive The terminal device returns the inner layer PMI weight, and then obtains the BF weight value according to the outer layer static weight and the inner layer PMI weight.
  • the terminal device determines the transmission power mode of the sounding signal to be transmitted, which can reduce the radiation of the terminal device when the terminal device is close to the user's head.
  • the interaction between terminal equipment and network equipment helps to achieve seamless collaboration between network equipment and terminal equipment.
  • the network device does not need to poll the sounding signal of the first part of the antenna, which saves the system overhead of the network device and saves the signaling overhead of the terminal device transmitting the PMI right back.
  • the terminal device transmits the sounding signal in the second transmit power mode it can increase the transmission rate of the downlink data, and help the downlink traffic reach the level of the TDD-MM system application.
  • the communication device provided by the embodiment of the present application is described below.
  • FIG. 3 shows a schematic diagram of a data transmission apparatus 300 provided by an embodiment of the present application.
  • the device 300 may be a terminal device, or a chip or circuit, for example, a chip or circuit that can be provided in a terminal device.
  • the apparatus 300 may include a processing unit 310 (that is, an example of a processor) and a transceiver unit 330.
  • the transceiver unit 330 may be implemented by a transceiver or a transceiver-related circuit or interface circuit.
  • the device may further include a storage unit 320.
  • the storage unit 320 is used to store instructions.
  • the storage unit may also be used to store data or information.
  • the storage unit 320 may be implemented by a memory.
  • the processing unit 310 is configured to execute the instructions stored in the storage unit 320, so that the apparatus 300 implements the steps performed by the terminal device in the foregoing method.
  • the processing unit 310 may be used to call the data of the storage unit 320, so that the apparatus 300 implements the steps performed by the terminal device in the foregoing method.
  • the processing unit 310, the storage unit 320, and the transceiving unit 330 may communicate with each other through an internal connection path to transmit control and/or data signals.
  • the storage unit 320 is used to store a computer program, and the processing unit 310 can be used to call and run the calculation program from the storage unit 320 to control the transceiver unit 330 to receive and/or send signals to complete the above method. Steps for terminal equipment.
  • the storage unit 320 may be integrated in the processing unit 310, or may be provided separately from the processing unit 310.
  • the transceiver unit 330 includes a receiver and a transmitter.
  • the receiver and transmitter may be the same or different physical entities. When they are the same physical entity, they can be collectively referred to as transceivers.
  • the transceiver unit 330 includes an input interface and an output interface.
  • the function of the transceiver unit 330 may be implemented by a transceiver circuit or a dedicated chip for transceiver.
  • the processing unit 310 may be implemented by a dedicated processing chip, a processing circuit, a processing unit, or a general-purpose chip.
  • a general-purpose computer may be considered to implement the communication device (such as a terminal device) provided in the embodiment of the present application. That is to say, the program code for realizing the functions of the processing unit 310 and the transceiving unit 330 is stored in the storage unit 320, and the general processing unit implements the functions of the processing unit 310 and the transceiving unit 330 by executing the code in the storage unit 320.
  • the processing unit 310 is configured to determine the transmission power mode of the reference signal of the terminal device, wherein the transmission power mode includes a first transmission power mode and a second transmission power mode, and the first transmission power mode The transmit power of the reference signal of the first antenna in the second transmit power mode is less than the transmit power of the reference signal of the first antenna in the second transmit power mode.
  • the transceiver unit 330 is configured to send first indication information to a network device, where the first indication information is used to indicate the transmit power mode.
  • the transmission power of the reference signal of the first part of the antenna of the terminal device is less than or equal to a first preset value and the transmission of the reference signal of the second part of the antenna of the terminal device The power is greater than the first preset value; in the second transmit power mode, the transmit power of the reference signal of the first partial antenna and the second partial antenna are both greater than the first preset value.
  • the reference signal of the first part of the antenna of the terminal device is transmitted or not transmitted according to the first transmission power range, and the reference signal of the second part of the antenna of the terminal device is Transmit according to the second transmission power range, wherein any value in the first transmission power range is lower than any value in the second transmission power range; in the second transmission power mode, the first part Both the antenna and the reference signal of the second part of the antenna are transmitted according to the second transmission power range.
  • the first partial antenna and the second partial antenna send reference signals at different times.
  • the first indication information includes one or more of the following: the number of the first part of the antenna, the number of the second part of the antenna, the identification of the first part of the antenna, and the number of the second part of the antenna Identification, the channel number of the first part of the antenna, and the channel number of the second part of the antenna.
  • the processing unit 310 is specifically configured to determine the transmit power mode of the terminal device in one or more frequency bands; or determine the terminal device in one or more frequency band combinations in each frequency band combination. Transmit power mode on each frequency band.
  • the first indication information includes information about the one or more frequency bands or information about a combination of the one or more frequency bands.
  • the transceiver unit 330 is further configured to receive a confirmation response to the first indication information sent by the network device, where the confirmation response is used to indicate that the network device agrees to the terminal device to use the transmit power mode Transmit detection signals;
  • a probe signal is transmitted according to the transmission power mode of the probe signal.
  • the processing unit 310 is specifically configured to determine the transmit power mode according to the distance between the terminal device and the user's head, and/or the call scenario of the terminal device, where the call scenario includes non-free Hands-up call scene and hands-free call scene;
  • the transmit power mode is the first A transmit power mode
  • determining that the transmission power mode is the second transmission power mode .
  • the processing unit 310 is further configured to use a distance sensor provided on the terminal device to obtain the distance between the terminal device and the user's head.
  • Each unit in the above embodiments may also be referred to as a module or circuit or component.
  • each module or unit in the apparatus 300 can be used to execute the above methods.
  • each action or processing procedure performed by the terminal device detailed description is omitted here to avoid redundant description.
  • explanations, detailed descriptions, and other steps involved in the device 300 please refer to the descriptions of these contents in the foregoing method or other embodiments, which are not repeated here.
  • FIG. 4 shows a schematic diagram of a data transmission apparatus 400 provided in an embodiment of the present application.
  • the apparatus 400 may be a network device, or a chip or circuit, for example, a chip or circuit that can be provided in a network device.
  • the apparatus 400 may include a processing unit 410 (that is, an example of a processor) and a transceiver unit 430.
  • the transceiver unit 430 may be implemented by a transceiver or a transceiver-related circuit or interface circuit.
  • the device may further include a storage unit 420.
  • the storage unit 420 is used to store instructions.
  • the storage unit may also be used to store data or information.
  • the storage unit 420 may be realized by a memory.
  • the processing unit 410 may be used to execute the instructions stored in the storage unit 420, so that the apparatus 400 implements the steps performed by the network device in the foregoing method.
  • the processing unit 410 may be used to call the data of the storage unit 420, so that the apparatus 400 implements the steps performed by the network device in the foregoing method.
  • the processing unit 410, the storage unit 420, and the transceiving unit 430 may communicate with each other through an internal connection path to transmit control and/or data signals.
  • the storage unit 420 is used to store a computer program, and the processing unit 410 can be used to call and run the calculation program from the storage unit 420 to control the transceiver unit 430 to receive signals and/or send signals to complete the above method. Steps for network equipment.
  • the storage unit 420 may be integrated in the processing unit 410, or may be provided separately from the processing unit 410.
  • the transceiving unit 430 may include a receiver and a transmitter.
  • the receiver and transmitter may be the same or different physical entities. When they are the same physical entity, they can be collectively referred to as transceivers.
  • the transceiver unit 430 may include an input interface and an output interface.
  • the function of the transceiver unit 430 may be implemented by a transceiver circuit or a dedicated chip for transceiver.
  • the processing unit 410 may be implemented by a dedicated processing chip, a processing circuit, a processing unit, or a general-purpose chip.
  • a general-purpose computer can be considered to implement the communication device provided in the embodiments of the present application. That is, the program code for realizing the functions of the processing unit 410 and the transceiving unit 430 is stored in the storage unit 420, and the general processing unit implements the functions of the processing unit 410 and the transceiving unit 430 by executing the code in the storage unit 420.
  • the transceiver unit 430 is configured to receive first indication information from the terminal device, the first indication information is used to indicate the transmission power mode of the detection signal of the terminal device, wherein the transmission power mode includes In the first transmission power mode and the second transmission power mode, the transmission power of the reference signal of the first part of the antenna in the first transmission power mode is less than the transmission power of the reference signal of the first part of the antenna in the second transmission power mode.
  • the processing unit 410 is configured to determine the beamforming weight of the terminal device for sending downlink data according to the first indication information.
  • the transmission power of the reference signal of the first part of the antenna of the terminal device is less than or equal to a first preset value and the transmission of the reference signal of the second part of the antenna of the terminal device The power is greater than the first preset value; in the second transmit power mode, the transmit power of the reference signal of the first partial antenna and the second partial antenna are both greater than the first preset value.
  • the reference signal of the first part of the antenna of the terminal device is transmitted or not transmitted according to the first transmission power range, and the reference signal of the second part of the antenna of the terminal device is Transmit according to the second transmission power range, wherein any value in the first transmission power range is lower than any value in the second transmission power range; in the second transmission power mode, the first part Both the antenna and the reference signal of the second part of the antenna are transmitted according to the second transmission power range.
  • the first indication information includes one or more of the following: the number of the first part of the antenna, the number of the second part of the antenna, the identification of the first part of the antenna, and the number of the second part of the antenna Identification, the channel number of the first part of the antenna, and the channel number of the second part of the antenna.
  • the processing unit 410 is specifically configured to:
  • the processing unit 410 is specifically configured to:
  • the first indication information includes information about one or more frequency bands or information about a combination of the one or more frequency bands where the reference signal is located.
  • the transceiver unit 430 is further configured to send a confirmation response to the first indication information to the terminal device, where the confirmation response is used to indicate that the network device agrees to the terminal device to use the transmit power mode Transmit detection signals.
  • Each unit in the above embodiments may also be referred to as a module or circuit or component.
  • the functions and actions of the modules or units in the apparatus 400 listed above are merely exemplary.
  • the modules or units in the apparatus 400 can be used to execute the above methods. Actions or processes performed by network devices.
  • FIG. 5 is a schematic structural diagram of a terminal device 500 provided by this application.
  • the terminal device 500 can perform the actions performed by the terminal device in the foregoing method embodiments.
  • FIG. 5 only shows the main components of the terminal device.
  • the terminal device 500 includes a processor, a memory, a control circuit, an antenna, and an input and output device.
  • the processor is mainly used to process the communication protocol and communication data, and to control the entire terminal device, execute the software program, and process the data of the software program, for example, it is used to support the terminal device to perform the above-mentioned data transmission instruction method described in the embodiment Actions.
  • the memory is mainly used to store software programs and data.
  • the control circuit is mainly used for the conversion of baseband signals and radio frequency signals and the processing of radio frequency signals.
  • the control circuit and the antenna together can also be called a transceiver, which is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users.
  • the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program.
  • the processor performs baseband processing on the data to be sent and outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal and then sends the radio frequency signal to the outside in the form of electromagnetic waves through the antenna.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data.
  • FIG. 5 only shows a memory and a processor. In actual terminal devices, there may be multiple processors and memories.
  • the memory may also be referred to as a storage medium or a storage device, etc., which is not limited in the embodiment of the present application.
  • the processor may include a baseband processor and a central processing unit.
  • the baseband processor is mainly used to process communication protocols and communication data.
  • the central processing unit is mainly used to control the entire terminal device, execute software programs, and process software programs. data.
  • the processor in FIG. 5 integrates the functions of the baseband processor and the central processing unit.
  • the baseband processor and the central processing unit may also be independent processors, which are interconnected by technologies such as buses.
  • the terminal device may include multiple baseband processors to adapt to different network standards, the terminal device may include multiple central processors to enhance its processing capabilities, and various components of the terminal device may be connected through various buses.
  • the baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip.
  • the central processing unit can also be expressed as a central processing circuit or a central processing chip.
  • the function of processing the communication protocol and communication data can be built in the processor, or can be stored in the storage unit in the form of a software program, and the processor executes the software program to realize the baseband processing function.
  • the antenna and control circuit with the transceiver function may be regarded as the transceiver unit 510 of the terminal device 500, and the processor with the processing function may be regarded as the processing unit 520 of the terminal device 500.
  • the terminal device 500 includes a transceiving unit 510 and a processing unit 520.
  • the transceiver unit may also be referred to as a transceiver, a transceiver, a transceiver, and so on.
  • the device for implementing the receiving function in the transceiving unit 510 can be regarded as the receiving unit, and the device for implementing the sending function in the transceiving unit 510 can be regarded as the sending unit, that is, the transceiving unit includes a receiving unit and a sending unit.
  • the receiving unit may also be called a receiver, a receiver, a receiving circuit, etc.
  • the sending unit may be called a transmitter, a transmitter, or a transmitting circuit, etc.
  • FIG. 6 is a schematic structural diagram of a network device 600 provided by an embodiment of this application, which may be used to implement the functions of the network device in the foregoing method.
  • the network device 600 includes one or more radio frequency units, such as a remote radio unit (RRU) 610 and one or more baseband units (BBU) (also referred to as digital units, digital units, DU) 620.
  • RRU remote radio unit
  • BBU baseband units
  • the RRU 610 may be called a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc., and it may include at least one antenna 611 and a radio frequency unit 612.
  • the RRU 610 part is mainly used for sending and receiving of radio frequency signals and conversion of radio frequency signals and baseband signals, for example, for sending the signaling messages described in the foregoing embodiments to terminal equipment.
  • the BBU620 part is mainly used to perform baseband processing, control the base station, and so on.
  • the RRU 610 and the BBU 620 may be physically set together, or may be physically separated, that is, a distributed base station.
  • the BBU 620 is the control center of the base station, and may also be called a processing unit, which is mainly used to complete baseband processing functions, such as channel coding, multiplexing, modulation, and spreading.
  • the BBU (processing unit) 620 may be used to control the base station 600 to execute the operation procedure of the network device in the foregoing method embodiment.
  • the BBU 620 may be composed of one or more single boards, and multiple single boards may jointly support a radio access network of a single access standard (such as an LTE system or a 5G system), and may also support different connections. Enter the standard wireless access network.
  • the BBU 620 further includes a memory 621 and a processor 622.
  • the memory 621 is used to store necessary instructions and data.
  • the processor 622 is used to control the base station to perform necessary actions, for example, to control the base station to execute the operation procedure of the network device in the foregoing method embodiment.
  • the memory 621 and the processor 622 may serve one or more boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits can be provided on each board.
  • SoC system-on-chip
  • all or part of the functions of part 620 and part 610 can be implemented by SoC technology, for example, a base station function chip
  • the base station function chip integrates a processor, a memory, an antenna interface and other devices, the program of the base station related functions is stored in the memory, and the processor executes the program to realize the relevant functions of the base station.
  • the base station function chip can also read a memory external to the chip to implement related functions of the base station.
  • FIG. 6 the structure of the network device illustrated in FIG. 6 is only a possible form, and should not constitute any limitation in the embodiment of the present application. This application does not exclude the possibility of other base station structures that may appear in the future.
  • the embodiment of the present application also provides a communication system, which includes the aforementioned network device and terminal device.
  • the processor may be a central processing unit (central processing unit, CPU), and the processor may also be other general-purpose processors, digital signal processors (digital signal processors, DSP), and dedicated integration Circuit (application specific integrated circuit, ASIC), ready-made programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electronic Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • static random access memory static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • 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 connection dynamic random access memory Take memory (synchlink DRAM, SLDRAM) and direct memory bus random access memory (direct rambus RAM, DR RAM).
  • the foregoing embodiments can be implemented in whole or in part by software, hardware, firmware or any other combination.
  • the above-mentioned embodiments may be implemented in the form of a computer program product in whole or in part.
  • the computer program product includes one or more computer instructions or computer programs.
  • the computer instructions or computer programs are loaded or executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center that includes one or more sets of available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium.
  • the semiconductor medium may be a solid state drive.
  • the embodiments of the present application also provide a computer-readable medium on which a computer program is stored.
  • the computer program is executed by a computer, the steps performed by the terminal device in any of the foregoing embodiments or the steps performed by the network device are implemented.
  • the embodiments of the present application also provide a computer program product, which, when executed by a computer, implements the steps performed by the terminal device in any of the foregoing embodiments or the steps performed by the network device.
  • the embodiment of the present application also provides a system chip, which includes a communication unit and a processing unit.
  • the processing unit may be a processor, for example.
  • the communication unit may be, for example, an input/output interface, a pin, or a circuit.
  • the processing unit can execute computer instructions, so that the chip in the communication device executes the steps performed by the terminal device provided in the embodiments of the present application or the steps performed by the network device.
  • the computer instructions are stored in a storage unit.
  • the first and the second are only to facilitate the distinction between different objects, and should not constitute any limitation to the application. For example, distinguish different transmission power modes, different antennas, and different instructions.
  • pre-acquisition may include being indicated by network device signaling or pre-defined, for example, protocol definition.
  • pre-defined can be realized by pre-saving corresponding codes, tables or other methods that can be used to indicate related information in the equipment (for example, including terminal equipment and network equipment). This application does not make any specific implementation methods. limited.
  • protocol in the embodiments of the present application may refer to a standard protocol in the communication field, for example, may include the LTE protocol, the NR protocol, and related protocols applied to future communication systems, which are not limited in this application.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • each unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of this application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.

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Abstract

La présente invention concerne un procédé et un appareil de transmission de données, pouvant réduire le rayonnement d'un dispositif terminal et satisfaisant aux exigences d'un utilisateur en matière de débits de communication à grande vitesse. Selon les modes de réalisation de la présente invention, un dispositif terminal peut, en fonction de différents scénarios d'application, déterminer de manière adaptative le mode de puissance de transmission du signal de détection du dispositif terminal, et, dans un premier mode de puissance de transmission, lorsque le dispositif terminal est proche de la tête de l'utilisateur, réduire le rayonnement du dispositif terminal, et le deuxième mode de transmission de puissance peut être utilisé lorsque le dispositif terminal n'est pas proche (c.-à-d. qu'il est éloigné) de la tête de l'utilisateur pour satisfaire aux exigences de l'utilisateur en matière de débits de communication à grande vitesse. Le dispositif terminal peut également indiquer le mode de puissance de transmission à un dispositif de réseau, permettant au dispositif de réseau de sélectionner un signal de détection en fonction de différents scénarios d'application, aidant à mettre en œuvre une collaboration lisse entre des dispositifs de réseau et des dispositifs terminaux.
PCT/CN2019/100073 2019-08-09 2019-08-09 Procédé et appareil de transmission de données WO2021026695A1 (fr)

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