WO2021056463A1 - Procédé et appareil d'amplification de signal - Google Patents

Procédé et appareil d'amplification de signal Download PDF

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Publication number
WO2021056463A1
WO2021056463A1 PCT/CN2019/108705 CN2019108705W WO2021056463A1 WO 2021056463 A1 WO2021056463 A1 WO 2021056463A1 CN 2019108705 W CN2019108705 W CN 2019108705W WO 2021056463 A1 WO2021056463 A1 WO 2021056463A1
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Prior art keywords
signal
reference signal
period
duration
indication information
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PCT/CN2019/108705
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English (en)
Chinese (zh)
Inventor
费永强
谢信乾
毕文平
郭志恒
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201980100381.1A priority Critical patent/CN114375601B/zh
Priority to PCT/CN2019/108705 priority patent/WO2021056463A1/fr
Publication of WO2021056463A1 publication Critical patent/WO2021056463A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like

Definitions

  • the embodiments of the present application relate to the field of communications, and in particular, to a signal amplification method and device.
  • a common method is to amplify the wireless signals by deploying specific equipment, such as deploying a relay or repeater. Regardless of the device, it will continue to amplify the received signal after it starts working. However, this method may lead to reduced communication quality in some cases.
  • the embodiments of the present application provide a signal amplification method and device to overcome the problem of reduced communication quality.
  • an embodiment of the present application provides a signal amplification method, including:
  • the first device obtains the indication information, where the indication information is used to indicate the first duration; when the first device detects the first reference signal sent by the network device, it triggers the first device to perform the first signal received in the first duration Amplify to obtain the second signal; send the second signal to the network device or the terminal device.
  • a possible implementation manner for the first device to obtain the indication information may be: the first device receives the indication signal sent by the network device, where the indication signal is used to indicate the indication information in this embodiment.
  • the indication signal may specifically be radio resource control (RRC) signaling sent by the network device, and the indication information is obtained according to the RRC signaling sent by the network device, so as to The first duration can be configured according to the obtained instruction information.
  • RRC radio resource control
  • the first device determines the first duration according to the instruction information, so that the device amplifies and transmits the received first signal within the first duration, thereby avoiding the first device from amplifying all the received signals.
  • the interference of the signal effectively improves the communication quality.
  • the method provided in this embodiment may be executed by the first device, or may be implemented by a chip in the first device.
  • execution by the first device is taken as an example for description.
  • the method also includes:
  • the first device receives the second reference signal; and according to the instruction of the second reference signal, stops amplifying the received signal.
  • a specific implementation manner when the amplification of the received signal is stopped according to the second reference signal, a specific implementation manner may be:
  • the first device starts at the stop time and stops amplifying the received signal.
  • the amplification of the signal can be stopped accurately and effectively, so that whether to amplify the first signal can be flexibly and effectively realized, effectively avoiding communication interference, and enhancing communication efficiency.
  • an embodiment of the present application provides a signal amplifying device, including:
  • An obtaining module configured to obtain indication information, where the indication information is used to indicate the first duration
  • An amplifying module configured to amplify the first signal received in the first duration to obtain a second signal when the first reference signal sent by the network device is detected;
  • the sending module is used to send the second signal.
  • the signal amplifying device in this embodiment may be the first device mentioned above, or may be a chip in the first device mentioned above.
  • the indication information is also used to indicate the first time period in the first duration
  • the amplification module is specifically used for:
  • the indication information is also used to indicate a first period and a first period, wherein the first duration includes at least one of the first periods, and each of the first periods includes the The first period
  • the amplifying module is specifically configured to amplify the first signal received in the first period of each first period in the first duration.
  • the indication information also indicates a frequency range, where the amplifying module is specifically configured to:
  • the acquisition module is also used to:
  • the amplification module is also used for:
  • the amplification of the received signal is stopped.
  • the amplifying module is specifically used for:
  • the first device starts at the stop time and stops amplifying the received signal.
  • an embodiment of the present application provides a signal amplifying device, including:
  • Memory used to store programs
  • the processor is configured to execute the program stored in the memory, and when the program is executed, the processor is configured to execute the method described in the above first aspect and any of the various possible designs of the first aspect.
  • the signal amplification device in this embodiment may be the first device mentioned above, or may be a chip in the first device mentioned above.
  • embodiments of the present application provide a computer-readable storage medium, including instructions, which when run on a computer, cause the computer to execute the above-mentioned first aspect and any of the various possible designs of the first aspect method.
  • an embodiment of the present application provides a computer program product.
  • the computer program product includes instructions that, when executed, cause a computer to execute the signal amplification method described in any one of the first aspects.
  • the embodiments of the present application provide a system on a chip or a system chip, the system on a chip or a system chip can be applied to a terminal device, and the system on a chip or a system chip includes: at least one communication interface, at least one processing The communication interface, the memory, and the processor are interconnected by a bus.
  • the processor executes the instructions stored in the memory so that the terminal device can perform any signal amplification as described in the first aspect. method.
  • an embodiment of the present application provides a signal amplifying device, including: a processor, and a receiver and a transmitter coupled to the processor, wherein the processor is configured to obtain instruction information, wherein the The indication information is used to indicate the first duration; and when the first reference signal sent by the network device is detected, the first signal received by the receiver in the first duration is amplified to obtain the second signal; the transmitting The device is used to send the second signal.
  • the indication information is further used to indicate the first time period in the first time length; the processor is specifically configured to: check the receiver in the first time period in the first time length The first signal received within is amplified.
  • the indication information is further used to indicate a first period and a first period, wherein the first period includes at least one of the first periods, and each of the first periods includes the first period;
  • the processor is specifically configured to amplify the first signal received in the first period of each first period in the first duration.
  • the indication information further indicates a frequency range
  • the processor is specifically configured to: amplify the first signal received within the frequency range in the first duration.
  • the receiver is configured to receive a second reference signal; the processor is further configured to stop amplifying the received signal according to the second reference signal.
  • the processor is specifically configured to: determine a stop time according to the second reference signal, where the stop time is the difference between the first end time corresponding to the second reference signal and the first duration The smaller value of the end time; at the beginning of the stop time, the amplification of the received signal is stopped.
  • the foregoing first duration corresponds to the first reference signal
  • the indication information is used to indicate the first duration corresponding to the first reference signal.
  • different first reference signals can be set to correspond to different first time lengths, so that different first signals can be amplified.
  • the first duration in the embodiment of the present application corresponds to the first reference signal, and the indication information therein is used to indicate information and is also used to indicate the first time period in the first duration;
  • the specific implementation may be as follows:
  • the first device can be instructed to amplify the first signal received in the specified first time period according to actual needs, thereby enhancing the first device to The accuracy and flexibility of the amplification of the first signal.
  • the indication information is also used to indicate the first period and the first period, where the first period includes at least one first period, and each first period includes the first period;
  • the first signal received in the first period of each first period in the first duration may be amplified.
  • the first signal in the first period can be periodically amplified, and the periodical amplification does not need to separately set each first period that needs to amplify the first signal, thereby
  • the convenience of amplifying the first signal by the device is enhanced, and this embodiment can amplify the first signal in the first period of time that needs to be amplified.
  • the first period is an uplink period and/or a downlink period in the first cycle.
  • the uplink signal and/or downlink signal can be flexibly configured to amplify, thereby reducing communication interference and improving communication. quality.
  • the indication information also indicates the frequency range
  • an implementation manner of amplifying the first signal received in the first duration may be:
  • the first signal in a part of the frequency range can be selectively amplified, thereby avoiding the amplification of the signal in the frequency range that does not need to be amplified, and reducing the interference in the communication process.
  • the indication information also indicates power indication information, where the power indication information indicates an absolute power value for sending the second signal; or, the power indication information indicates a power amplification factor for amplifying the first signal.
  • the first device By setting the power indication information, the first device can be instructed to amplify the received first signal to the required degree. At the same time, by setting the absolute power value or the power amplification factor, the corresponding amplification method can be selected according to actual needs, thereby improving the Flexibility to amplify the first signal.
  • the first reference signal is determined according to first reference signal configuration information, and the first reference signal configuration information includes first sequence information, first frequency domain candidate resource information, and first time domain candidate resource information.
  • the first sequence information is used to indicate the sequence of the first reference signal
  • the first frequency domain candidate resource is used to instruct the first device to detect the frequency domain resource of the first reference signal
  • the first time domain candidate resource is used to indicate the first device The time domain resource of the first reference signal is detected.
  • the second reference signal is determined according to second reference signal configuration information, and the second reference signal configuration information includes second sequence information, second frequency domain candidate resource information, and second time domain candidate resource information.
  • the second sequence information is used to indicate the sequence of the second reference signal
  • the second frequency domain candidate resource is used to instruct the first device to detect the frequency domain resource of the second reference signal
  • the second time domain candidate resource is used to indicate the first device The time domain resource of the second reference signal is detected.
  • the first device determines the first duration according to the instruction information, so that the received first signal can be amplified and sent within the first duration, which avoids the first device from interfering with All received signals are amplified to cause signal interference, which effectively improves communication quality.
  • FIG. 1 is a system schematic diagram of a signal amplification method provided by an embodiment of the application
  • 2A is a schematic diagram of amplifying an uplink signal provided by an embodiment of the application.
  • 2B is a schematic diagram of amplifying a downlink signal provided by an embodiment of the application.
  • FIG. 3 is a first flowchart of a signal amplification method provided by an embodiment of the application.
  • FIG. 4 is a first time period schematic diagram of a signal amplification method provided by an embodiment of the application.
  • FIG. 5 is a second schematic diagram of a time period of a signal amplification method provided by an embodiment of this application.
  • FIG. 6 is a schematic diagram of the frequency range of a signal amplification method provided by an embodiment of the application.
  • FIG. 7 is a second flowchart of a signal amplification method provided by an embodiment of this application.
  • FIG. 8 is a schematic diagram 1 of stopping amplifying signals provided by an embodiment of the application.
  • FIG. 9 is a second schematic diagram of a stop amplifying signal provided by an embodiment of this application.
  • FIG. 10 is a schematic diagram of amplifying a signal of uplink data provided by an embodiment of the application.
  • FIG. 11 is a first structural diagram of a signal amplifying device provided by an embodiment of the application.
  • FIG. 12 is a second structural diagram of the signal amplifying device provided by an embodiment of the application.
  • FIG. 13 is a schematic diagram of the hardware structure of a signal amplifying device provided by an embodiment of the application.
  • FIG. 1 is a system schematic diagram of the signal amplification method provided by the embodiment of the present application, as shown in FIG. 1:
  • It includes a network device 101, a terminal device 102, and a first device 103.
  • the network device 101 is an entity used to transmit or receive signals on the network side, which may be, for example, the Global System for Mobile Communications (GSM) or Code Division Multiple Access (CDMA).
  • Base Station it can also be the base station NodeB in Wideband Code Division Multiple Access (W-CDMA), or the evolution in Long Term Evolution (LTE) Type base stations eNB, gNB, etc., the embodiment of the present application does not limit the specific implementation manner of the network device 101.
  • the terminal device 102 may be a mobile terminal, mobile user equipment, computer equipment, tablet computer, or smart phone, etc., or the mobile terminal may also be a mobile phone (or called a "cellular" phone), a vehicle-mounted processing device, or a mobile
  • a mobile phone or called a "cellular" phone
  • vehicle-mounted processing device or a mobile
  • portable computers, portable computers, or handheld computers, etc., portable computers, etc. which are not limited in the embodiments of the present application.
  • the embodiments of this application can be applied to 5G communication systems, or can also be applied to any other communication systems such as 4G, 3G, etc., as long as the communication system includes network equipment and terminal equipment, where the network equipment and terminal equipment can pass through The wireless signal can be used for information exchange.
  • a wireless communication system such as a new radio (NR) communication system
  • information exchanged between a terminal device and a network device is carried through a physical channel.
  • the data sent by the terminal device that is, uplink data
  • the control information sent by the terminal device that is, the uplink control information
  • the physical uplink control channel physical uplink shared channel, PUSCH.
  • uplink control channel (PUCCH) bearer the terminal device can also send a sounding reference signal (SRS), and the network device can estimate the channel quality of the terminal device on different frequencies by receiving the SRS of the terminal device.
  • the data sent by the network device to the terminal device can be referred to as downlink data.
  • the path loss of wireless signal propagation is very serious.
  • it is necessary to consider enhancing the coverage of the wireless signal because when the terminal device transmits uplink data, its transmission power is often low, which causes the uplink signal sent by the terminal device in the deep coverage scenario to reach the network device.
  • the time is very weak, and it is difficult for the network equipment to correctly detect or demodulate the uplink signal sent by the terminal device, so it is particularly important to enhance the coverage of the uplink wireless signal.
  • the first device 103 is an entity that can receive signals and forward the received signals, and it can also be a terminal device capable of receiving and forwarding.
  • the first device 103 can be, for example, a repeater, a relay, or a special terminal.
  • the first device 103 can be understood that as long as the first device 103 can amplify and forward the received signal, this embodiment does not specifically limit its implementation.
  • the network device 101, the terminal device 102, and the first device 103 form a communication system.
  • the terminal device 102 can send uplink data to the network device 101, and the network device 101 can send downlink data to the terminal device 102.
  • the downlink data sent by the network device 101 may also be forwarded to the terminal device 102 through the first device 103, and the uplink data sent by the terminal device 102 may also be forwarded to the network device 101 through the first device 103.
  • the network device 101 can send downlink information to the terminal device 102, the first device 103 can also send downlink information to the terminal device 102, and the first device 103 can also receive the uplink information sent by the terminal device 102.
  • the first device in the above communication system may be a repeater or a relay device.
  • the repeater can receive the downlink signal sent by the network device through the forward antenna, and send it to the terminal device from the backward antenna after filtering, noise reduction and signal amplification.
  • the repeater can also amplify the uplink signal sent by the terminal device in a similar manner and send it to the network device.
  • the relay can receive the downlink signal of the network device through the forward antenna, demodulate and/or decode the received downlink signal to obtain the original bit stream, and then re-create the original bit stream. Carry out modulation and/or coding, and send to the terminal device through the backward antenna.
  • the relay can also amplify the uplink signal sent by the terminal device in a similar manner and send it to the network device.
  • both the repeater and the relay can amplify and send one of the uplink signal or the downlink signal, and can also amplify and send both the uplink signal and the downlink signal.
  • Fig. 2A is a schematic diagram of amplifying the uplink signal provided by an embodiment of the application
  • Fig. 2B is a downlink signal provided by an embodiment of the application Enlarged schematic diagram.
  • the terminal device 1-2 in this cell is not currently sending an uplink signal
  • the terminal device 2-1 in a neighboring cell is sending an uplink signal
  • the uplink signal sent by the terminal device 2-1 can be directly sent to the network device 2.
  • the first device 0 of the two-way amplification that is, both the downlink signal and the uplink signal
  • the first device will still amplify the signal from the neighboring cell.
  • the same frequency uplink signal of the terminal equipment 2-1 causes interference to the uplink signal of the cell.
  • the uplink signal sent by the terminal device 1-1 may not pass through the first device 0, but can be directly sent to the network device 1.
  • the network device 1 can receive the uplink signal directly sent by the terminal device 1-1.
  • the downlink signal that the network device 1 can directly send to the terminal device 1-2 because the network device has a higher transmission power, the downlink channel of the cell where the network device 1 is located does not require coverage enhancement, but because the first device 0 is always in the active state, it will amplify all the received signals, thereby amplifying the same-frequency downlink signal sent by the base station 2 from the neighboring cell, which will cause interference to the downlink signal received by the terminal device 1-2.
  • the first device When the first device is in the active state, the first device always amplifies the received signal unconditionally, which will cause the received signal to be amplified during some time when the signal is not required to be amplified, resulting in network equipment and terminals The interference to the equipment increases, which reduces the communication quality.
  • FIG. 3 is a first flowchart of a signal amplification method provided by an embodiment of this application.
  • the content in the following embodiments is introduced using a Time Division Duplex (TDD) system as an example.
  • TDD Time Division Duplex
  • FDD Frequency Division Duplex
  • the implementation of the Frequency Division Duplex (FDD) system is similar to that described in the TDD system. This embodiment will explain the differences. The rest of the implementations are similar.
  • the implementation of the FDD system is the same as the TDD system. The place is no longer described.
  • the method includes the following steps.
  • the method provided in this embodiment may be executed by the foregoing first device, or may be implemented by a chip in the first device, for example, a baseband processor, or a baseband processor and a radio frequency unit are implemented together.
  • a baseband processor when the method provided in this embodiment is implemented by a baseband processor, the above-mentioned receiving action can be understood as the operation of decoding the received signal to obtain indication information, or it can be understood as reading the signal input by the radio frequency unit. operating.
  • the above receiving action can be understood as the radio frequency unit receiving the signal and performing down-conversion processing on the received signal, and the baseband processor decodes the signal output by the radio frequency unit. The operation of obtaining instructions.
  • the execution subject in this embodiment takes the first device as an example for description.
  • the indication information is used to indicate the first period (first period).
  • the information is only the first duration. For example, it is indicated by carrying identification information corresponding to the first duration in the message, or the first duration is directly sent in the message. This embodiment does not limit this, as long as the indication information can indicate the first time length, it can be specific.
  • the indication information may be sent by the network device or the terminal device.
  • the radio resource control radio resource control
  • the network device/terminal device sent by the network device/terminal device to the first device in real time control, RRC) signaling to configure the first duration.
  • the first duration can be configured as N time slots, subframes, frames, milliseconds, seconds, etc. through RRC signaling.
  • the first duration may also be the unit of the uplink-downlink switching period.
  • the first duration is N uplink-downlink switching periods, etc., where N is an integer,
  • the instruction information may also be pre-arranged between the first device and the network device/terminal device through a protocol, for example, the first device and the network device terminal device pre-appoint the first duration through a protocol If it is 10 milliseconds, then the instruction information can be obtained directly from the agreed protocol at this time.
  • a plurality of first durations may be pre-appointed between the first device and the network device terminal device, where each first duration corresponds to its own identifier, and then the identifier corresponding to the first duration can be indicated through the indication information. In order to determine the first duration of the target.
  • This embodiment does not limit the specific implementation of the indication information, as long as the information can indicate the first duration. At the same time, this embodiment also does not limit the specific implementation of the first duration, as long as the first duration is a period of time. That's it.
  • the first device amplifies the signal received in the first time period, and does not amplify the signal received in other times than the first time period.
  • the network device may also send a first reference signal to the first device, where the first reference signal is used to trigger the first device to amplify the signal received in the first duration.
  • the first device can detect multiple first reference signals, where different first reference signals can be amplified corresponding to different signals, so that the first device can amplify based on the detected first reference signal.
  • different signals may be signals in different frequency bands, or uplink signals and downlink signals, or signals corresponding to different services.
  • the indication information is used to indicate the first duration corresponding to the first device.
  • the multiple first reference signals detected by the first device correspond to the same first duration, for example, the first duration is 20 milliseconds. Then when the first reference signal A is detected, from the moment when the first reference signal A is detected, the received uplink signal can be amplified within the next 20 milliseconds.
  • the first reference signal B is detected, From the moment when the first reference signal B is detected, the received uplink signal can be amplified within the next 20 milliseconds.
  • the indication information is used to indicate the first duration corresponding to the first reference signal, that is, different first reference signals correspond to respective indication information, and thus correspond to respective first durations.
  • the first device detects the first reference signal C, it first determines that the first time length corresponding to the first reference signal C is 30 frames according to the indication information corresponding to the first reference signal C, and then determines the first time length In the next 30 frames at the moment, the first device can amplify the received first signal.
  • the first device determine the first reference signal D according to the indication information corresponding to the first reference signal D
  • the corresponding first duration is 20 frames, and the first device may amplify the received first signal in the next 20 frames at the time when the first duration is determined.
  • the first reference signal may be a reference signal generated in any manner, for example, it may be a reference signal generated based on a Gold sequence. Specifically, different reference signals may be generated through different initial phases; or may be based on The reference signal generated by the Zadoff-Chu (Zadoff-Chu, ZC) sequence, specifically, different reference signals can be generated through different roots or cyclic shifts, and the embodiment of the present application does not limit the specific implementation manner of generating the first reference signal .
  • the first device that receives the first reference signal is in the activated state for the first time period, and the first device that is in the activated state can amplify and send the received first signal; If the first device does not receive any first reference signal, the first device remains in the deactivated state. The first device in the deactivated state will not receive and amplify the forwarded signal, and the first signal is amplified by setting for the first device This avoids the interference caused by the amplification of any signal received by the first device.
  • the above explanation of the activation state is only for ease of understanding. In the actual implementation process, it is not necessary to There is an act of setting the first device to an active state.
  • the foregoing first reference signal may also be sent by a terminal device.
  • the specific implementation of the first device is similar to the foregoing description, and details are not described herein again.
  • the first device sends the amplified second signal. Specifically, if the first signal is an uplink signal sent by a terminal device, the first device sends the amplified second signal to the network device; if the first signal is a downlink signal sent by the network device, the first device will amplify The obtained second signal is sent to the terminal device.
  • the first device determines the first duration according to the instruction information, so that the first device amplifies and transmits the received first signal within the first duration, thereby avoiding the first device from ignoring Amplify all the received signals at all times, effectively reducing the interference generated during the time when the signal is not needed to be amplified, and improving the communication quality.
  • the received first signal can be amplified within the first time period.
  • the uplink signal may be amplified, but the downlink signal may not be amplified; or, It is possible to amplify the downstream signal, but not to amplify the upstream signal. Or, it is also possible to amplify the signal in a specific period of time in the first time length, and not to amplify the signal in other periods of time. Therefore, in addition to setting the first time length, the first time period can also be set to indicate that those times within the first time length are the time periods during which the first signal really needs to be amplified, so as to achieve selective amplification of only the first signal that needs to be amplified .
  • the indication information provided in this embodiment is also used to indicate the first period (duration) in the first duration. Specifically, when amplifying the received first signal, it is the first time period. The first signal received in the first period of time is amplified.
  • the first time period can be divided into any number of first time periods, where the time lengths corresponding to each first time period may be the same or different.
  • the specific number of the first time periods and the time length corresponding to each first time period It can be selected according to actual needs, and this embodiment does not limit this.
  • the first device by setting the indication information to indicate the first time period in the first time length, the first device can be instructed to amplify the first signal received in the specified first time period according to actual needs, thereby enhancing the first time period.
  • the accuracy and flexibility of a device to amplify the first signal by setting the indication information to indicate the first time period in the first time length, the first device can be instructed to amplify the first signal received in the specified first time period according to actual needs, thereby enhancing the first time period.
  • the indication information is also used to indicate the first period and the first period, where the first period includes at least one first period, and each first period includes the first period, specifically When the received first signal is amplified, the first signal received in the first period of each first period in the first duration is amplified.
  • the signal in the first time period can be periodically amplified, which is described below with reference to FIG. 4, which is a first time period schematic diagram of the signal amplifying method provided by the embodiment of the application.
  • Fig. 4 exemplarily introduces the indication information 1 corresponding to the first reference signal 1 indicating a relationship between the first period and the first time period.
  • the first reference signal 1 Instruct the first device to amplify the first signal received in the first period of each first period in the first duration.
  • the horizontal axis of the coordinate axis indicates time, and the vertical axis The axis indicates the magnification of the first signal.
  • the first reference signal is received at time t1, and the received first signal is amplified within the first time period according to the first reference signal. Specifically, in each first period Within the corresponding time length range, the received signal is amplified, and outside the first time length and in the time period outside each first time period in the first time length, the operation of amplifying the received signal is not performed.
  • FIG. 4 also exemplarily introduces another type of first reference signal 2 indicated by the corresponding indication information 2
  • the corresponding relationship between the first period and the first duration is similar to that when the first signal is amplified, except that the division of the first period and the first duration is different.
  • the specific first period and the first The time length can be selected according to actual needs, and there is no restriction on this here. By dividing different first periods and first time lengths, the signals in different time periods can be correspondingly amplified.
  • the first signal in the first period can be periodically amplified, and the periodical amplification may not need to separately set each first signal that needs to amplify the first signal. Time period, thereby enhancing the convenience of amplifying the first signal by the device. At the same time, this embodiment can only amplify the first signal in the first time period that needs to be amplified, thereby enhancing the first device to amplify the first signal. Accuracy.
  • the first period in the first period is the uplink period and/or the downlink period in the first period, which will be described below with reference to FIG. 5, which is a schematic diagram of the signal amplification method provided by an embodiment of the application. Time period diagram two.
  • the first period may be an uplink-downlink switching period.
  • an uplink-downlink switching period includes an uplink period (UL) and a downlink period (DL).
  • the first period may be an uplink period, then The corresponding first device amplifies the first signal in the uplink period, and does not amplify the signal in other periods, so as to achieve the effect of only amplifying the uplink signal; or, the corresponding first period can be the downlink period, then the corresponding The first device only amplifies the first signal in the downlink period, so as to achieve the effect of only amplifying the downlink signal; or, the first period can include both the uplink period and the downlink period, then it will receive in the first period All signals received are amplified.
  • a terminal device when a terminal device sends an uplink signal to a network device, because the transmission power of the terminal device is often relatively low, when the uplink signal sent by the terminal device reaches the network device, the signal is always very weak. At this time, only the first signal in the uplink period can be amplified, so that the weak uplink signal sent by the terminal device to the network device can be amplified in a targeted manner.
  • the degree of amplification required for the uplink signal and the downlink signal is also different.
  • the indication information corresponding to each first reference signal can be correspondingly set to indicate the uplink period and The respective magnifications of the downlink period, so as to achieve different magnifications in different periods.
  • the uplink signal and/or downlink signal can be flexibly configured to amplify, thereby specifically amplifying the weak Useful signals reduce communication interference and improve communication quality.
  • the indication information does not indicate any first time period, all received first signals are amplified within the time range of the first time length by default.
  • the bandwidth corresponding to the actual transmission frequency range is Receive and amplify the first signal below.
  • amplifying the first signal in other frequency ranges may increase the interference of the signal. Therefore, in this embodiment, the first reference signal and a specific frequency can also be set. The corresponding relationship of the ranges is such that when the first device receives different first reference signals, it only needs to receive and amplify the first signal in the frequency range corresponding to the first reference signal.
  • the indication information in this embodiment also indicates the frequency range, and specifically when amplifying the received first signal, the first signal received within the frequency range in the first duration is amplified.
  • FIG. 6 is a schematic diagram of the frequency range of the signal amplification method provided by an embodiment of the application.
  • the indication information 1 corresponding to the first reference signal 1 indicates the frequency range 1
  • the indication information 2 corresponding to the first reference signal 2 indicates the frequency range 2
  • the indication information 3 corresponding to the first reference signal 3 indicates the frequency range 3, it corresponds to FIG. 6
  • the indication information 1 in indicates that the first signal received in the frequency range 1 is amplified in the first duration, where the horizontal axis of the coordinate in FIG. 6 is the frequency.
  • the frequency ranges indicated by the indication information may overlap, or they may not overlap with each other.
  • This embodiment does not limit this, and the frequency range corresponding to each indication information can be selected according to actual needs. The example does not limit this.
  • the indication information does not indicate any frequency range, it can default to amplify the first signal received in all frequency ranges within the time range of the first duration; or, it can also work on the network device The first signals received in the frequency range are all amplified.
  • the indication information to indicate the frequency range, it is possible to selectively amplify the first signal in a part of the frequency range, thereby avoiding the amplification of the signal in the frequency range that does not need to be amplified, and reducing the interference in the communication process.
  • the signal amplifying method provided in the embodiment of the present application may also specifically indicate the degree of amplification for amplifying the first signal.
  • the indication information also indicates power indication information, where the power indication information may indicate the absolute power value of sending the second signal, for example, the power indication information instructs the first device to transmit the second signal at 29dBm; or, the power indication information also The power amplification factor for amplifying the first signal may be indicated, for example, the power indication information indicates that the first signal is amplified by 10 times (that is, 10 dB) to obtain the second signal.
  • the power indication information may also be separately configured information independent of the indication information, that is to say, the power indication information and the indication information are two independent pieces of information, and the power indication information is specifically used to indicate the pair The absolute power value or power amplification multiple of the first signal to be amplified.
  • the first signal may be amplified according to a predefined absolute power value or power amplification factor.
  • the first device By setting the power indication information, the first device can be instructed to amplify the received first signal to the required degree. At the same time, by setting the absolute power value or the power amplification factor, the corresponding amplification method can be selected according to actual needs, thereby improving the Flexibility to amplify the first signal.
  • the first reference signal in this embodiment is determined according to first reference signal configuration information, and the first reference signal configuration information includes first sequence information, first frequency domain candidate resource information, and first time domain candidate resource information One or more of.
  • the first reference signal configuration information may be information independent of the indication information, or the first reference information may also be a piece of information in the indication information, which is not limited in this embodiment.
  • First sequence information Used to indicate the sequence of the first reference signal Candidate resources in the first frequency domain Frequency domain resource used to instruct the first device to detect the first reference signal Candidate resources in the first time domain Time domain resource for instructing the first device to detect the first reference signal
  • the first reference signal identifier is used to uniquely indicate a first reference signal, and the specific implementation of the first reference signal identifier can be selected according to actual requirements, which is not limited in this embodiment.
  • the first sequence information is used to indicate the sequence of the first reference signal.
  • the first sequence information may be, for example, the sequence generated based on the Gold sequence introduced in the above embodiment, or may be based on Zad-off Chu (ZC ) Sequence generated by sequence.
  • ZC Zad-off Chu
  • the first frequency domain candidate resource is used to instruct the first device to detect the frequency domain resource of the first reference signal
  • the first time domain candidate resource is used to instruct the first device to detect the time domain resource of the first reference signal.
  • the first reference signal is also a signal, which corresponds to the transmission period and frequency range, so the first frequency domain candidate resource actually indicates the possible frequency range of the first reference signal, and the first time domain candidate resource actually The above indicates the possible time domain position of the first reference signal.
  • the network device can configure one or more first reference signals for the first device, so the first device can determine the specific first reference signal according to the identifier of the first reference signal, and according to the first reference signal A frequency domain candidate resource and a first time domain candidate resource, within the frequency domain resource range indicated by the first frequency domain candidate resource, and within the time domain resource range indicated by the first time domain candidate resource, compare the first reference signal
  • the detection avoids the energy consumption and complexity overhead caused by large-scale blind detection, so as to improve the efficiency and accuracy of detecting the first reference signal.
  • FIG. 7 is the second flowchart of the signal amplification method provided by the embodiment of the application.
  • the method further includes:
  • the method provided in this embodiment may be executed by the foregoing first device, or may be implemented by a chip in the first device, for example, a baseband processor, or a baseband processor and a radio frequency unit are implemented together.
  • a baseband processor when the method provided in this embodiment is implemented by a baseband processor, the above-mentioned receiving action can be understood as the operation of decoding the received signal to obtain indication information, or it can be understood as reading the signal input by the radio frequency unit. operating.
  • the above receiving action can be understood as the radio frequency unit receiving the signal and performing down-conversion processing on the received signal, and the baseband processor decodes the signal output by the radio frequency unit. The operation of obtaining instructions.
  • the execution subject in this embodiment takes the first device as an example for description.
  • the implementation of the second reference signal is similar to that of the first reference signal. The difference is that the second reference signal is used to trigger the signal received by the first device to stop amplifying. Those skilled in the art can understand that the second reference signal Used to set the first device to the deactivated state.
  • the second reference signal is determined according to the second reference signal configuration information, and the second reference signal configuration information includes the second sequence information, the second frequency domain candidate resource information, and the second time domain candidate resource information. one or more;
  • the second sequence information is used to indicate the sequence of the second reference signal
  • the second frequency domain candidate resource is used to instruct the first device to detect the frequency domain resource of the second reference signal
  • the second time domain candidate resource is used to indicate the first device The time domain resource of the second reference signal is detected.
  • the second reference signal configuration information and the first reference signal configuration information are implemented in similar manners, and the specific implementation manner can be referred to the introduction in the foregoing embodiment, which will not be repeated here.
  • the second reference signal may be a signal corresponding to the first device, that is to say, the first reference signals of the first device all correspond to the same second reference signal; or, the second reference signal It may be a signal corresponding to the first reference signal, that is, the first reference signal of the first device corresponds to the respective second reference signal.
  • the stop time needs to be determined according to the second reference signal.
  • the stop time is determined according to the second reference signal, where the stop time is the smaller of the first end time corresponding to the second reference signal and the end time of the first duration; the first device starts at the stop time and stops Amplification of the received signal.
  • FIG. 8 is the stop zoom provided by the embodiment of this application.
  • FIG. 9 is the second schematic diagram of the stop amplifying signal provided by an embodiment of the application:
  • the first reference signal 1 corresponds to the first duration 1
  • the first reference signal 2 corresponds to the first duration 2
  • the first reference signal 3 corresponds to the first duration 3.
  • the first The end time corresponding to duration 1 is t1
  • the end time corresponding to the first duration 2 is t2
  • the end time corresponding to the first duration 3 is t3
  • the first end time corresponding to the second reference signal is t4.
  • the correspondence between time points it can be determined that the first end time is compared with the end time of the first duration, and the end time t3 of the first duration is the minimum value. Then the first device starts from t3 and stops receiving large The signal is amplified.
  • the first end time is compared with the end time of the first duration, and the first end time is t4 which is the minimum value, then the first device Starting from t4, stop amplifying the received large signal.
  • the first duration can be configured to be infinite through the indication information, that is, after the first reference signal is received, the received reference signal will continue to be amplified until the second reference signal is received. Signal, it stops amplifying and sending the received first signal.
  • the signal amplification method provided in this embodiment includes: receiving a second reference signal. According to the second reference signal, the amplification of the received signal is stopped. By stopping the amplification of the received signal according to the second reference signal, the amplification of the signal can be stopped accurately and effectively, so that whether to amplify the first signal can be realized flexibly and effectively, so as to effectively reduce the need to amplify the signal. Interference generated within time enhances communication efficiency.
  • a complete indication information may include the following content:
  • Indication information ⁇ first reference signal identification, first duration, first time period, frequency range, power indication information, second reference signal identification ⁇
  • the first device detects the first reference signal in the frequency domain resource of the first reference signal and the time domain resource of the first reference signal according to the first reference signal identifier in the indication information, and then triggers after detecting the first reference signal
  • the first device amplifies the signal received in the first time period. Specifically, the first signal in the frequency range is amplified in the first time period in the first time period to the absolute power value indicated by the power indication information. , Or amplify the first signal according to the amplification factor indicated by the power indication information to obtain the second signal and send the second signal.
  • the second reference signal is detected according to the second reference signal identifier, and after the second reference signal is detected, the amplification of the received signal is stopped according to the second reference signal.
  • the network device can configure multiple instructions described above for the first device:
  • FIG. 10 is a schematic diagram of amplifying signals of uplink data provided by an embodiment of this application, and FIG. 8 is an implementation of this application.
  • the second schematic diagram of the stop amplifying signal provided by the example is shown in Figure 10:
  • the network device sends the first reference signal to the first device. After receiving the first reference signal, the first device determines the indication information corresponding to the first reference signal, and compares the received first reference signal according to the content indicated by the indication information. The signal is amplified, assuming that the indication information at this time indicates to amplify the first signal received in the uplink period.
  • the network device schedules the terminal device to transmit uplink data through PUSCH. Specifically, the network device sends Downlink Control Information (DCI) to the terminal device to instruct the terminal device to send it to the network device through the PUSCH according to the DCI signaling.
  • DCI Downlink Control Information
  • the first device receives the first signal (uplink signal) sent by the terminal device, amplifies the first signal to obtain the second signal, and sends the second signal to the network device.
  • the network device can After receiving the amplified second signal, it effectively solves the problem of signal attenuation caused by the low transmission power of uplink data in deep coverage scenarios.
  • the first device only amplifies the uplink signal for the first period of time to achieve In order to amplify only the required uplink signals, the interference caused by amplifying all the signals is avoided.
  • the TDD system because its uplink transmission and downlink transmission are carried out on the same frequency band according to the cross-allocation of time, in the TDD system, only the uplink signal or only the downlink signal can be amplified by configuring the uplink period or the downlink period.
  • Frequency Division Duplex (FDD) systems because the uplink transmission and downlink transmission of the FDD system are differentiated in different frequency ranges, the FDD system cannot only pass the uplink period or the downlink
  • the time period is set to achieve the effect of "enlarge only upstream” or "enlarge only downstream".
  • the indication information corresponds to the frequency band that needs to be amplified, and the indication information needs to indicate that the amplified frequency band is the uplink.
  • the frequency band is also the downlink frequency band.
  • the indication information is also used to indicate frequency band information, where the frequency band information may be an uplink frequency band or a downlink frequency band, and the indication information in the FDD system may be as follows:
  • the configuration information includes DL or UL frequency band information, for example:
  • Indication information ⁇ first reference signal ID, first duration, first time period, uplink frequency band or downlink frequency band, frequency range, power indication information, second reference signal ID ⁇
  • the cell coverage is effectively improved while avoiding the useless amplification of the first device, which not only reduces energy consumption, but also Reduced interference.
  • FIG. 11 is a structural schematic diagram 1 of the signal amplifying device provided by the embodiment of the present application.
  • the device 10 includes a processor 1101, and a receiver 1102 and a transmitter 1103 coupled with the processor 1101, wherein,
  • the processor 1101 is configured to obtain indication information, where the indication information is used to indicate a first duration; and when a first reference signal sent by a network device is detected, the receiver 1102 is Amplify the first signal received in, to obtain the second signal;
  • the transmitter 1103 is configured to send the second signal.
  • the signal amplifying device in this embodiment may further include a signal amplifier 1104.
  • the processor 1101 is configured to control the signal amplifier 1104 to communicate with the receiver 1102 during the first time period. Amplify the received first signal to obtain a second signal;
  • the signal amplifying device in this embodiment may not include the processor 1101 but a signal amplifier 1104.
  • the signal amplifier 1104 may not need the control of the processor 1101. Specifically, the signal amplifier 1104 may be instructed The information amplifies the first signal received by the receiver 1102 in the first duration to obtain a second signal.
  • the following signal amplification processing operations can all be implemented according to the above structure, for example, the signal amplifier 1104 and the receiver and transmitter jointly complete the signal amplification without the need for the processor 1101. Alternatively, the signal amplifier 1104 is controlled by the processor 1101 to realize signal amplification.
  • the processor 1101 is specifically configured to amplify the first signal received by the receiver 1102 in the first time period in the first time period.
  • the indication information is also used to indicate a first period and a first period, wherein the first duration includes at least one of the first periods, and each of the first periods includes the The first period
  • the processor 1101 is specifically configured to amplify the first signal received in the first period of each first period in the first duration.
  • the indication information further indicates a frequency range
  • the processor 1101 is specifically configured to: amplify the first signal received in the frequency range in the first duration.
  • the receiver 1102 is configured to receive the second reference signal
  • the processor 1101 is further configured to stop amplifying the received signal according to the second reference signal.
  • the processor 1101 is specifically configured to:
  • the amplification of the received signal is stopped.
  • FIG. 12 is a second structural diagram of the signal amplifying device provided by the embodiment of the present application.
  • the device 120 includes: an obtaining module 1201, an amplifying module 1202, and a sending module 1203.
  • the obtaining module 1201 is configured to obtain indication information, where the indication information is used to indicate the first duration;
  • the amplifying module 1202 is configured to amplify the first signal received in the first duration to obtain a second signal when the first reference signal sent by the network device is detected;
  • the sending module 1203 is configured to send the second signal.
  • the first duration corresponds to the first reference signal
  • the indication information is used to indicate the first duration corresponding to the first reference signal
  • the indication information is also used to indicate the first time period in the first duration
  • the amplifying module 1202 is specifically used for:
  • the indication information is also used to indicate a first period and a first period, wherein the first duration includes at least one of the first periods, and each of the first periods includes the The first period
  • the amplifying module 1202 is specifically used for:
  • the first period is an uplink period and/or a downlink period in the first cycle.
  • the indication information also indicates a frequency range, where the amplifying module 1202 is specifically configured to:
  • the indication information also indicates power indication information, where:
  • the power indication information indicates the absolute power value for sending the second signal.
  • the power indication information indicates a power amplification factor for amplifying the first signal.
  • the first reference signal is determined according to first reference signal configuration information, and the first reference signal configuration information includes first sequence information, first frequency domain candidate resource information, and first time One or more of the domain candidate resource information;
  • the first sequence information is used to indicate the sequence of the first reference signal
  • the first frequency domain candidate resource is used to instruct the first device to detect the frequency domain resource of the first reference signal
  • the first The time domain candidate resource is used to instruct the first device to detect the time domain resource of the first reference signal.
  • the acquisition module 1201 is also used to:
  • the amplifying module 1202 is also used for:
  • the amplification of the received signal is stopped.
  • the amplifying module 1202 is specifically used for:
  • the first device starts at the stop time and stops amplifying the received signal.
  • the second reference signal is determined according to second reference signal configuration information, and the second reference signal configuration information includes second sequence information, second frequency domain candidate resource information, and second time One or more of the domain candidate resource information;
  • the second sequence information is used to indicate the sequence of the second reference signal
  • the second frequency domain candidate resource is used to instruct the first device to detect the frequency domain resource of the second reference signal
  • the second The time domain candidate resource is used to instruct the first device to detect the time domain resource of the second reference signal.
  • the device provided in this embodiment can be used to implement the technical solutions of the foregoing method embodiments, and its implementation principles and technical effects are similar, and will not be repeated here in this embodiment.
  • FIG. 13 is a schematic diagram of the hardware structure of a signal amplifying device provided by an embodiment of the application.
  • the signal amplifying device 130 of this embodiment includes a processor 1301 and a memory 1302;
  • the memory 1302 is used to store computer execution instructions
  • the processor 1301 is configured to execute computer-executable instructions stored in the memory to implement each step performed by the signal amplification method in the foregoing embodiment. For details, refer to the relevant description in the foregoing method embodiment.
  • the memory 1302 may be independent or integrated with the processor 1301.
  • the signal amplifying device further includes a bus 1303 for connecting the memory 1302 and the processor 1301.
  • the foregoing processor may be a central processing unit (Central Processing Unit, CPU), or other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), and application specific integrated circuits (ASICs). )Wait.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the steps in the embodiment of the service processing method disclosed in the embodiment of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.
  • the embodiment of the present application also provides a computer-readable storage medium that stores computer-executable instructions, and when the processor executes the computer-executed instructions, the signal amplification method executed by the above signal amplification device is implemented .
  • the embodiment of the present application provides a computer program product.
  • the computer program product includes instructions. When the instructions are executed, the computer is caused to execute the above-mentioned signal amplification method.
  • An embodiment of the present application provides a system on a chip or a system chip, the system on a chip or a system chip may be applied to a terminal device, and the system on a chip or a system chip includes: at least one communication interface, at least one processor, and at least one The memory, the communication interface, the memory, and the processor are interconnected by a bus, and the processor executes the instructions stored in the memory so that the terminal device can execute the above-mentioned signal amplification method.
  • All or part of the steps in the foregoing method embodiments can be implemented by a program instructing relevant hardware.
  • the aforementioned program can be stored in a readable memory.
  • the program executes the steps that include the foregoing method embodiments; and the foregoing memory (storage medium) includes: read-only memory (English: read-only memory, abbreviation: ROM), RAM, flash memory, hard disk, Solid state hard disk, magnetic tape (English: magnetic tape), floppy disk (English: floppy disk), optical disc (English: optical disc) and any combination thereof.
  • These computer program instructions can be provided to the processing unit of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing equipment to generate a machine, so that the instructions executed by the processing unit of the computer or other programmable data processing equipment can be used to generate It is a device that realizes the functions specified in one or more processes in the flowchart and/or one or more blocks in the block diagram.
  • These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
  • the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
  • the instructions provide steps for implementing the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • the term “including” and its variations may refer to non-limiting inclusion; the term “or” and its variations may refer to “and/or”.
  • the terms “first”, “second”, etc. in the embodiments of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence.
  • “multiple” refers to two or more.
  • “And/or” describes the association relationship of the associated objects, indicating that there can be three types of relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone.
  • the character “/” generally indicates that the associated objects before and after are in an "or” relationship.

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Abstract

Le présent mode de réalisation concerne un procédé et un appareil d'amplification de signal. Le procédé consiste en : l'obtention d'informations d'indication, les informations d'indication étant utilisées pour indiquer une première durée ; lors de la détection d'un premier signal de référence envoyé par un dispositif de réseau, l'amplification d'un premier signal reçu pendant la première durée pour obtenir un second signal ; et l'envoi du second signal. Un premier dispositif détermine la première durée en fonction des informations d'indication, de sorte que le dispositif amplifie le second signal reçu pendant la première durée et envoie le second signal amplifié, ce qui permet d'éviter une interférence de signal provoquée par l'amplification, par le premier dispositif, de tous les signaux reçus et d'améliorer efficacement la qualité de communication.
PCT/CN2019/108705 2019-09-27 2019-09-27 Procédé et appareil d'amplification de signal WO2021056463A1 (fr)

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