WO2018121225A1 - 一种通信方法、接入网设备及终端 - Google Patents

一种通信方法、接入网设备及终端 Download PDF

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Publication number
WO2018121225A1
WO2018121225A1 PCT/CN2017/115338 CN2017115338W WO2018121225A1 WO 2018121225 A1 WO2018121225 A1 WO 2018121225A1 CN 2017115338 W CN2017115338 W CN 2017115338W WO 2018121225 A1 WO2018121225 A1 WO 2018121225A1
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WO
WIPO (PCT)
Prior art keywords
carrier
power
path loss
terminal
parameter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2017/115338
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English (en)
French (fr)
Inventor
孙伟
郭志恒
程型清
谢信乾
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to EP17888698.2A priority Critical patent/EP3531607B1/en
Publication of WO2018121225A1 publication Critical patent/WO2018121225A1/zh
Priority to US16/454,392 priority patent/US20190320394A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/146—Uplink power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/06—TPC algorithms
    • H04W52/16—Deriving transmission power values from another channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/242—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account path loss
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/30—Transmission power control [TPC] using constraints in the total amount of available transmission power
    • H04W52/32—TPC of broadcast or control channels
    • H04W52/325—Power control of control or pilot channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/38—TPC being performed in particular situations
    • H04W52/50—TPC being performed in particular situations at the moment of starting communication in a multiple access environment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a communication method, an access network device, and a terminal.
  • the spectrum that can be used is expanding, and how to realize information transmission through carriers of different frequencies becomes the key.
  • the path loss of the carrier needs to be acquired to perform power limitation on the uplink transmission. Otherwise, uplink data on the carrier may not be transmitted.
  • the uplink carrier since the uplink carrier always has a corresponding downlink carrier, the carrier frequencies of the two carriers are relatively small, and the path loss is basically the same. Therefore, the user can obtain the path loss by using the downlink pilot measurement.
  • Frequency Division Duplexing FDD
  • FDD Frequency Division Duplexing
  • the carrier frequencies of the two carriers are relatively small, the path loss is basically the same, and the channel obtained by the downlink carrier measurement.
  • Path loss can be used for power control of pairs of upstream carriers.
  • time division duplex English: Time Duplexing Division, TDD for short
  • the uplink and downlink are on the same carrier
  • the path loss measured in the downlink subframe can be used for power control of the uplink subframe.
  • the path loss between carriers is generally very different, which makes it impossible for the user to directly use the path loss measured by one carrier for another carrier for uplink transmission. If used directly, the uplink data of the other carrier may not be sent.
  • the next generation communication system is required to not affect the performance of the previous generation communication system, that is, it requires coexistence with the previous generation communication system.
  • the Long Term Evolution (LTE) system can coexist with the third generation mobile communication technology (English: The Third Generation Mobile Communication Technology, 3G) system, and the fifth generation mobile communication technology ( English: The Fifth Generation Mobile Communication Technology (5G) system and LTE system both support carrier frequencies below 6 GHz.
  • 5G NR systems and LTE systems can coexist at frequencies below 6 GHz.
  • 5G NR and LTE can coexist in the same frequency band, and the performance of 5G NR and LTE cannot affect each other.
  • the frequency band used for LTE deployment may have a relatively low frequency band usage rate.
  • the uplink traffic volume is compared for the uplink frequency band.
  • 5G NR can use part of the bandwidth of these bands, or a part of the sub-frames of these bands.
  • 5G NR support and LTE multiplexing in one frequency band, sharing the same frequency band resources.
  • the carrier frequency of the shared carrier of the 5G NR and the LTE is generally different from the carrier frequency of the dedicated carrier of the 5G NR.
  • the carrier frequency of the shared carrier is 2.0 GHz
  • the carrier frequency of the proprietary carrier of the 5G NR is 3.5 GHz
  • the 5G NR's proprietary carrier is a higher carrier frequency band, and the path loss of the 5G NR is quite different. This makes the path loss measured by the 5G NR dedicated carrier cannot be directly used for the shared carrier for uplink transmission.
  • the present application provides a communication method, an access network device, and a terminal, which can solve the problem that an uplink signal cannot be transmitted due to a large difference in frequency of communication carriers.
  • the application provides a communication method, including:
  • the access network device determines a power parameter, and can receive an uplink signal sent by the terminal based on the power parameter.
  • the access network device may further send the first information to the terminal, where the first information is used to indicate the power parameter.
  • the power parameter based on the terminal may be determined by the access network device and sent to the terminal, or may be directly determined by the terminal.
  • the power parameter includes at least one of a transmit power and a power adjustment parameter of the terminal on the first carrier, where the first carrier is an uplink carrier.
  • the first information may be carried by the second carrier.
  • the first carrier may be a first radio access technology (Radio Access Technology, RAT for short) and an uplink frequency division duplex (FDD) carrier using a second RAT.
  • the second carrier may be a carrier adopting the first RAT.
  • the first carrier may be an uplink carrier adopting the first RAT, and the second carrier may also be a carrier adopting the first RAT.
  • the first information may be high-level information, such as system information, or Radio Resource Control (RRC) signaling.
  • RRC Radio Resource Control
  • the first information may also be physical layer downlink control information (Downlink Control Information, DCI for short).
  • the power parameter may include an initial transmit power of the terminal on the first carrier, the first information being used to indicate the initial transmit power.
  • the method further includes: the access network device receiving the reference signal sent by the terminal by using the initial transmit power; obtaining the received power of the reference signal by using the measurement; and sending the second information to the terminal, The second information is used to indicate the received power or to indicate a path loss obtained by the received power.
  • the reference signal is carried by the first carrier, and the second information is carried by the second carrier.
  • the access network device may directly send the second information to the terminal, that is, the second information is used to indicate the received power; or the access network device receives the reference signal received.
  • the path loss of the first carrier may be further determined according to the received power and the initial transmit power, and the second information is sent to the terminal, that is, the second information is used to indicate the determined path loss.
  • the power parameter may include an initial transmit power of the terminal on the first carrier, the first information being used to indicate the initial transmit power.
  • the initial transmit power may be that the terminal sends the initial transmit power of the random access preamble to the access network device
  • the power parameter may further include a power adjustment parameter, where the power adjustment parameter is used to indicate information about the power accumulation value, where The power accumulated value is used to adjust the sending power of the random access preamble sent by the terminal to the access network device.
  • the initial transmit power on the first carrier may be pre-configured by the base station, or may be determined by the base station according to the location of the UE.
  • the power parameter includes a power adjustment parameter, where the power adjustment parameter is a difference of the path loss; and the access network device determines the power parameter, including: determining, by the access network device, the first carrier and the second carrier path of The difference between the losses, wherein the second carrier is a carrier carrying the first information.
  • the difference between the path loss of the first carrier and the second carrier may be determined by the base station based on a carrier frequency of the first carrier and the second carrier, or may be based on a path loss of the first carrier and a second carrier.
  • the path loss is determined.
  • the access network device determines a difference in path loss between the first carrier and the second carrier, including: the access network device is based on a carrier frequency of the first carrier and a carrier frequency of the second carrier, Determining a difference between a path loss of the first carrier and the second carrier; or determining, by the access network device, the first carrier and the first carrier based on a carrier frequency of the first carrier, a carrier frequency of the second carrier, and a pre-stored correspondence relationship The difference in path loss between the two carriers.
  • the pre-stored correspondence may include a carrier frequency of the first carrier, a carrier frequency of the second carrier, and a correspondence between the difference between the path loss of the first carrier and the second carrier; or the pre-stored correspondence includes Corresponding relationship between a carrier frequency of the first carrier and a carrier value of the carrier frequency of the second carrier, and a difference between path losses of the first carrier and the second carrier; or the pre-stored correspondence may include a carrier frequency of the first carrier, a path loss corresponding to the first carrier, a carrier frequency of the second carrier, and a path loss corresponding to the second carrier, where a difference in path loss is corresponding to the first carrier frequency The difference between the path loss and the path loss corresponding to the carrier frequency of the second carrier.
  • the difference between the path loss of the first carrier and the second carrier satisfies the following formula: 20log10(fc1)-20log10(fc2); or, 20log(fc1/fc2).
  • fc1 represents one of a carrier frequency of the first carrier and a carrier frequency of the second carrier
  • fc2 represents the other of the carrier frequency of the first carrier and the carrier frequency of the second carrier.
  • the power parameter is the power adjustment parameter, where the power adjustment parameter includes the parameter used to adjust the path loss compensation factor; and the access network device determines the power parameter, including: the access network device receiving terminal sends The uplink signal; determining a parameter for adjusting the path loss compensation factor based on the received power of the uplink signal.
  • the parameter for adjusting the path loss compensation factor may be determined by comparing the measured received power of the uplink signal with the target received power of the terminal, and based on the comparison result.
  • the parameter used for adjusting the path loss compensation factor may be an adjusted path loss compensation factor, or may be a difference between the path loss compensation factor before the adjustment and the adjusted path loss compensation factor.
  • the target received power can be pre-configured.
  • the base station may further configure an initial path loss compensation factor, and notify the terminal of the path loss compensation factor, for example, sending the path loss compensation factor to the terminal at the second carrier.
  • the application further provides a communication method, including:
  • the terminal determines a power parameter and transmits an uplink signal on the first carrier based on the power parameter.
  • the determining, by the terminal, the power parameter includes: receiving, by the terminal, first information sent by the access network device, where the first information is used to indicate the power parameter.
  • the first information is used to indicate a power parameter, where the power parameter includes at least one of a transmit power and a power adjustment parameter of the terminal on the first carrier, where the first carrier is an uplink carrier.
  • the first information is carried by the second carrier.
  • the first carrier may be an uplink FDD carrier that uses the first RAT and the second RAT, and the second carrier may be a carrier that uses the first RAT; for example, the first carrier may be a first RAT.
  • the uplink carrier, the second carrier may also be a carrier adopting the first RAT.
  • the first information may be system message, RRC signaling, DCI information, or the like.
  • the power parameter includes an initial transmit power of the terminal on the first carrier, and the first information is used to indicate the initial transmit power.
  • the terminal sends an uplink signal to the first carrier based on the power parameter, where the terminal sends a reference signal to the access network device based on the initial transmit power, and receives the second message sent by the access network device.
  • the second information is used to indicate the received power obtained by the access network device based on the reference signal or the path loss obtained by the access network device by using the received power; based on the received power or the path loss
  • the first carrier transmits an uplink signal.
  • the reference signal is carried by the first carrier, and the second information is carried by the second carrier.
  • the second information may be the received power of the reference signal, or may be the path loss of the first carrier determined by the access network device based on the received power.
  • the second information indicates the received power of the reference signal; and the terminal sends the uplink signal on the first carrier based on the received power, where the terminal includes: the received power of the terminal based on the reference signal, and the initial transmission. Power, determining a path loss of the first carrier; transmitting an uplink signal on the first carrier based on the determined path loss.
  • the power parameter includes an initial transmit power of the terminal on the first carrier, and the power parameter further includes the power adjustment parameter, where the power adjustment parameter is used to indicate information about a power accumulation value, that is, the first Information is used to indicate the initial transmit power and the power accumulation value.
  • the terminal sends an uplink signal to the first carrier based on the power parameter, where the terminal sends a random access preamble to the access network device based on the initial transmit power; if the random access fails, the terminal adjusts based on the power accumulated value.
  • One carrier transmits an uplink signal.
  • the random access preamble is carried by the first carrier.
  • the terminal may resend the random access preamble based on the power accumulated value, where the retransmitted random access preamble transmission power may be the power value of the previous random access preamble. Accumulate the power accumulation value.
  • the power parameter includes the power adjustment parameter, where the power adjustment parameter includes a difference between a path loss of the first carrier and the second carrier; and the terminal may further acquire a path loss of the second carrier; wherein The second carrier is a carrier that carries the first information.
  • the terminal sends an uplink signal on the first carrier based on the power parameter, where the terminal determines the transmission power based on the path loss of the second carrier and the difference, and sends an uplink signal on the first carrier based on the determined transmit power.
  • the access network device may send a reference signal on the second carrier, where the terminal may receive the reference signal sent by the base station on the second carrier, obtain the transmit power of the reference signal, and obtain the reference.
  • the received power of the signal so that the terminal can obtain the path loss of the second carrier based on the transmit power of the reference signal on the second carrier and the received power of the reference signal, such as the transmit power of the reference signal and the received power of the reference signal.
  • the difference is used as the path loss of the second carrier.
  • the power parameter may include a power adjustment parameter, where the power adjustment parameter is a difference between the path loss of the first carrier and the second carrier; and the terminal determines the power parameter, including: the terminal is based on the first carrier a carrier frequency and a carrier frequency of the second carrier, determining a difference between a path loss of the first carrier and the second carrier; or, the terminal is based on a carrier frequency of the first carrier, a carrier frequency of the second carrier, and a pre-stored correspondence The relationship determines the difference in path loss between the first carrier and the second carrier.
  • the pre-stored correspondence may include a carrier frequency of the first carrier, a carrier frequency of the second carrier, and a correspondence between the difference between the path loss of the first carrier and the second carrier; or the pre-stored correspondence includes Pair of the carrier frequency of the first carrier and the carrier value of the carrier frequency of the second carrier, and the difference between the path loss of the first carrier and the second carrier
  • the pre-stored correspondence may include a carrier frequency of the first carrier, a path loss corresponding to the first carrier, a carrier frequency of the second carrier, and a path loss corresponding to the second carrier, where the path The difference between the losses is the difference between the path loss corresponding to the first carrier frequency and the path loss corresponding to the carrier frequency of the second carrier. Therefore, the terminal can determine the transmission power of the uplink signal of the first carrier by using the difference between the path loss of the first carrier and the second carrier determined by the terminal and the obtained path loss of the second carrier.
  • the difference between the path loss of the first carrier and the second carrier satisfies the following formula: 20log10(fc1)-20log10(fc2); or, 20log(fc1/fc2).
  • fc1 represents one of a carrier frequency of the first carrier and a carrier frequency of the second carrier
  • fc2 represents the other of the carrier frequency of the first carrier and the carrier frequency of the second carrier.
  • the terminal may further acquire a path loss of the second carrier, where the second carrier is a carrier that carries the first information; the terminal determines a transmit power based on a path loss of the second carrier, and determines the Transmit power is sent on the first carrier, where the power parameter is the power adjustment parameter, where the power adjustment parameter includes a parameter for adjusting a path loss compensation factor, and the parameter used to adjust the path loss compensation factor may be
  • the access network device is determined based on the received power of the uplink signal. Further, the terminal sends the uplink signal on the first carrier based on the power parameter, including: the terminal adjusts the transmit power based on the path loss of the second carrier and the parameter used to adjust the path loss compensation factor, and is based on the adjusted transmit power.
  • An uplink signal is transmitted on the first carrier.
  • the terminal may determine the transmit power of the first carrier according to the path loss compensation factor configured by the base station and the path loss of the second carrier, so that the UE may perform the transmit power after the first carrier is compensated based on the path loss compensation factor.
  • the parameter used to adjust the path loss compensation factor may be an adjusted path loss compensation factor, or may be a difference between the path loss compensation factor before the adjustment and the adjusted path loss compensation factor.
  • the application further provides a communication method, including:
  • the access network device determines a parameter of the reference signal, where the reference signal is carried on the third carrier, and is sent by the access network device to the terminal, where the reference signal is used to determine a path loss of the first carrier;
  • the access network device sends first information to the terminal by using a second carrier, where the first information is used to indicate a parameter of the reference signal;
  • the first carrier is an uplink FDD carrier that uses the first RAT and the second RAT
  • the third carrier is a downlink FDD carrier that uses the second RAT
  • the second carrier is the first carrier. Carrier of the RAT.
  • the parameter of the reference signal may be a parameter of a Cell Reference Signal (CRS) of the third carrier, where the parameters of the CRS may include a cell number, a transmit power, and a sequence. At least one of a generation mode and a time-frequency location.
  • CRS Cell Reference Signal
  • the application further provides a communication method, including:
  • the second carrier Receiving, by the second carrier, the first information sent by the access network device, where the first information is used to indicate a parameter of the reference signal, where the reference signal is carried on the third carrier, and sent by the access network device to the a terminal, where the reference signal is used to determine a path loss of the first carrier;
  • the terminal receives a reference signal on the third carrier based on a parameter of the reference signal, and determines a path loss of the third carrier based on the reference signal;
  • the terminal transmits an uplink signal on the first carrier based on a path loss of the third carrier.
  • the parameter of the reference signal may be a parameter of a CRS of the third carrier
  • the parameters of the CRS may include at least one of a cell number, a transmission power, a sequence generation manner, and a time-frequency location.
  • the terminal determines a path loss of the third carrier based on the reference signal, where the terminal may measure the received power of the reference signal, and based on the transmit power of the reference signal. And a received power of the reference signal determines a path loss of the third carrier. Therefore, the terminal can use the path loss of the third carrier as the path loss of the first carrier, and determine the transmit power corresponding to the path loss of the third carrier, where the transmit power is the transmit power of the first carrier, so that the UE can follow The determined transmit power is uplinked on the first carrier.
  • the application further provides an access network device, where the access network device includes: a determining module and a communication module, where the access network device implements part or all of the communication method of the foregoing first aspect by using the foregoing module Steps or some or all of the steps of the communication method of the above third aspect are implemented.
  • the present application further provides a terminal, where the terminal includes: a determining module and a communication module, where the terminal implements part or all of the steps of the communication method of the second aspect or the communication method of the fourth aspect by using the foregoing module Part or all of the steps.
  • the present application further provides a computer storage medium storing a program, the program including some or all of the steps of the communication method of the first aspect or the third aspect Part or all of the steps of the communication method.
  • the present application further provides a computer storage medium storing a program, the program including some or all of the steps of the communication method of the second aspect or the fourth aspect Part or all of the steps of the communication method.
  • the application further provides an access network device, including: a communication interface, a memory, and a processor, wherein the processor is respectively connected to the communication interface and the memory; wherein
  • the memory is configured to store program instructions
  • the processor is configured to invoke a program instruction in the memory to perform part or all of the steps of the communication method of the first aspect or to perform some or all of the steps of the communication method of the third aspect.
  • the application further provides a terminal, including: a communication interface, a memory, and a processor, wherein the processor is respectively connected to the communication interface and the memory; wherein
  • the memory is configured to store program instructions
  • the processor is configured to invoke a program instruction in the memory to perform some or all of the steps of the communication method of the second aspect or perform some or all of the steps of the communication method of the fourth aspect.
  • the present application further provides a communication system, including an access network device and a terminal, where the access network device is configured to perform some or all of the steps of the communication method of the foregoing first aspect or perform the foregoing Part or all of the steps of the communication method of the third aspect; the terminal is for performing some or all of the steps of the communication method of the second aspect or performing some or all of the steps of the communication method of the fourth aspect.
  • the access network device is configured to perform some or all of the steps of the communication method of the foregoing first aspect or perform the foregoing Part or all of the steps of the communication method of the third aspect
  • the terminal is for performing some or all of the steps of the communication method of the second aspect or performing some or all of the steps of the communication method of the fourth aspect.
  • the base station determines the power parameter including the transmission power and/or the power adjustment parameter of the terminal on the first carrier, and sends the power parameter to the terminal, so that the terminal can be based on the power parameter.
  • the uplink reference signal is transmitted on one carrier, that is, the uplink transmission of the first carrier is implemented, which solves the problem that the uplink signal cannot be transmitted due to a large difference in carrier frequency, and can implement carrier sharing between different communication systems.
  • FIG. 1 is a block diagram of a communication system according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of a frequency band used by a 5G system and an LTE system according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of interaction of a communication method according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of interaction of another communication method according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of interaction of still another communication method according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of interaction of still another communication method according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of interaction of still another communication method according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of interaction of still another communication method according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of an access network device according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of a communication system according to an embodiment of the present invention.
  • FIG. 12 is a schematic structural diagram of another access network device according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic structural diagram of another terminal according to an embodiment of the present invention.
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • TD-SCDMA Time Division-Synchronous Code Division Multiple Access
  • UMTS Universal Mobile Telecommunication System
  • LTE Long Term Evolution
  • 5G Fifth Generation Mobile Communication Technology
  • the terminal may also be referred to as a user equipment (English: User Equipment, UE for short), a mobile station (English: Mobile Station, MS for short), a wireless terminal, or a mobile terminal. It can communicate with one or more core networks via a radio access network (eg, RAN, radio access network), and the terminal can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal. It can also be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges language and/or data with a wireless access network, and the like.
  • a radio access network eg, RAN, radio access network
  • the access network device may be a base station, for example, may be a base station in GSM or CDMA, such as a base transceiver station (BTS), or a base station in WCDMA, such as a NodeB. It may be an evolved base station in LTE, such as an eNB or an e-NodeB (evolutional Node B), in a 5G system.
  • the base station, or other base station in the future network, is not limited in the embodiment of the present invention.
  • FIG. 1 is a structural diagram of a communication system according to an embodiment of the present invention.
  • the communication system includes an access network device and a terminal, and various wireless access technologies may be adopted between the access network device and the terminal, thereby implementing communication.
  • the embodiment of the present invention uses the access network device as the base station and the terminal as the UE as an example.
  • the base station and the UE can communicate with each other through various radio access technologies, such as the 5G system in the above wireless communication system, which may be 5G.
  • NR system such as LTE system, 3G system, and so on.
  • the 5G NR system can support carrier frequencies below 6 GHz (ie, carrier frequency), and can support more than 6 GHz, such as a carrier frequency of 30 GHz, and can support both single carrier mode and multi-carrier aggregation mode.
  • the LTE system supports carrier frequencies below 6 GHz, including paired FDD bands, unpaired TDD bands, and carrier aggregation in the same duplex mode or in different duplex modes.
  • 5G NR and LTE can coexist in the same frequency band, that is, 5G NR and LTE can share a frequency band of 6 GHz or lower.
  • the frequency usage rate is relatively low in the frequency band in which LTE is deployed, for example, for the uplink frequency band.
  • the uplink traffic is relatively small, and the utilization rate of the LTE FDD uplink frequency band is low, so that the 5G NR can use a part of the bandwidth of the part of the frequency band, or a part of the subframe of the partial frequency band carries the information transmission of the 5G NR, that is, the 5G NR support and the LTE. Multiplexing in one frequency band to share the same frequency resource.
  • 5G NR and LTE may share an FDD uplink carrier using LTE, assuming that a shared carrier of 5G NR and LTE is a first carrier, and a frequency band is f2; a dedicated carrier of 5G NR is a second carrier, and a frequency band thereof It is f3; the LTE dedicated carrier is the third carrier, which is the FDD downlink carrier of LTE, and its frequency band is f1.
  • the carrier frequency of the first carrier and the second carrier is different, and the UE in the 5G NR can perform uplink transmission on the first carrier, and can perform downlink transmission on the second carrier, or can be in the second.
  • the carrier performs downlink transmission and uplink transmission.
  • the UE needs to obtain the path loss of the first carrier when performing uplink transmission on the first carrier to perform power control, so as to implement communication with the base station by using the shared LTE FDD uplink carrier.
  • the 5G NR is deployed on a carrier with a higher carrier frequency, that is, a primary carrier of a 5G NR, such as a second carrier.
  • a low-frequency carrier needs to be deployed as a secondary carrier, such as the first carrier, that is, the carrier frequencies of the first carrier and the second carrier are different.
  • the first carrier may be adjacent to the carrier of other communication systems, such as possibly adjacent to the carrier of the LTE, or may be adjacent to the carrier of the 3G.
  • the first carrier may be used only for transmitting the uplink signal of the 5G NR.
  • the uplink carrier of the LTE FDD spectrum can be completely used for the NR system due to the low load, and the first carrier is only used for transmitting the uplink signal of the 5G NR.
  • the UE needs to acquire the path loss of the first carrier when performing uplink transmission on the first carrier to perform power control, so as to implement communication with the base station by using the first carrier.
  • the present application discloses an information transmitting method, an access network device, a terminal, and a system, which can solve the problem that an uplink signal cannot be transmitted due to a large difference in frequency of communication carriers. The details are explained below.
  • FIG. 3 is a schematic diagram of interaction of a communication method according to an embodiment of the present invention.
  • the communication method in the embodiment of the present invention may include the following steps:
  • the base station determines an initial transmit power of the UE on the first carrier.
  • the base station may determine a power parameter, where the power parameter includes an initial transmit power of the UE on the first carrier, That is, the initial transmit power is used by the UE to transmit a reference signal on the first carrier.
  • the initial transmit power on the first carrier may be pre-configured by the base station.
  • the base station can only transmit the downlink signal on the second carrier, the base station cannot know the location information of the UE in the cell, and thus, the base station can determine a unified transmission power of the entire network.
  • the initial transmit power may be 23 dBm, or other values, which are not limited in the embodiment of the present invention.
  • the initial transmit power on the first carrier may also be determined by the base station according to the location of the UE.
  • the base station can transmit the downlink signal on the second carrier, or can receive the uplink signal sent by the UE, the base station can determine the received signal (Reference Signal Received Power, RSRP for short) according to the reference signal received by the UE.
  • the UE determines the initial transmission power at the location where the base station covers the cell, such as determining whether the UE is at the cell center or at the cell edge.
  • a power threshold may be preset.
  • the base station may determine that the UE is a cell center user, and may allocate a lower initial transmit power, such as 15 dBm; when the RSRP is smaller than When the power threshold is used, the base station can determine that the UE is a cell edge user, and can allocate a higher initial transmit power, such as 23 dBm.
  • the initial transmit power on the first carrier may be determined by using other methods, such as obtaining the initial transmit power by other network side devices, and notifying the base station and the UE.
  • the base station sends first information, in the second carrier, to the UE, indicating the initial transmit power.
  • the base station may determine a power parameter, where the power parameter includes an initial transmit power of the UE on the first carrier, that is, the initial transmit power is used by the UE to send a reference signal on the first carrier. After determining the initial transmit power, the base station may send first information on the second carrier, the first information being used to indicate an initial transmit power on the first carrier.
  • the first information may be high layer information, such as system information, or RRC signaling.
  • the first information may also be DCI information under the physical layer.
  • the first information may be a system message.
  • the first information may be RRC signaling or DCI information, etc., which are not enumerated here.
  • the UE receives the first information on the second carrier to obtain the initial transmit power.
  • the UE sends an uplink reference signal on the first carrier according to the initial transmit power.
  • the UE may receive the first information sent by the base station, and determine an initial transmit power indicated by the first information, so that the UE may send the uplink reference signal on the first carrier according to the initial transmit power.
  • the base station receives the uplink reference signal on the first carrier, and measures the received power of the uplink reference signal.
  • the base station sends the second information on the second carrier.
  • the base station may calculate, according to the measured received power of the uplink reference signal and the initial transmit power of the UE on the first carrier, a path loss of the UE and the base station in the first carrier, such as the initial transmit power and the receiving. The difference in power is taken as the path loss.
  • the base station may send the second information to the UE by using the second carrier.
  • the second information may be used to indicate the received power; or the second information may be used to indicate a path loss obtained by the received power.
  • the UE receives the second information on the second carrier, and acquires a path loss in the first carrier.
  • the UE may obtain the path loss of the first carrier in the UE and the base station.
  • the path loss may be directly indicated by the second information; or, if the second information indicates only the For receiving power of the uplink reference signal, the UE may calculate the path loss according to the received power indicated by the second information and the initial transmit power indicated by the first information.
  • the UE sends an uplink signal on the first carrier according to the path loss.
  • the UE may further determine the transmit power of the first carrier according to the path loss, and further determine the transmit power of the first carrier according to the uplink power control formula, so that the UE may determine the transmit power.
  • Perform uplink transmission on the first carrier such as transmitting uplink data or transmitting an uplink reference signal.
  • the base station receives the uplink signal sent by the UE according to the path loss on the first carrier, so as to implement uplink transmission between the base station and the UE on the first carrier.
  • the base station can determine the initial transmit power, so that the UE can send the uplink reference signal on the first carrier by using the initial transmit power, so that the base station can determine the received power based on the received power of the uplink reference signal and the initial transmit power.
  • the path loss of the first carrier is used to determine the transmission power of the uplink signal based on the path loss to implement the uplink transmission of the first carrier, which improves the accuracy and reliability of the acquired path loss, and solves the large difference between the carrier frequencies.
  • the resulting uplink signal cannot be transmitted, and carrier sharing between different communication systems can be achieved.
  • FIG. 4 is a schematic diagram of interaction of another communication method according to an embodiment of the present invention.
  • the communication method in the embodiment of the present invention may include the following steps:
  • the base station determines an initial transmit power and a power accumulation value of the UE on the first carrier.
  • the base station may determine a power parameter, where the power parameter includes an initial transmit power of the UE on the first carrier, where the initial transmit power is an initial transmit power of the random access preamble sent by the UE to the base station. Further, the power parameter further includes a power adjustment parameter, and is used to indicate information about a power accumulation value, where the power accumulation value is used to adjust a transmit power of the random access preamble sent by the UE to the base station.
  • the manner in which the base station determines the initial transmit power can be referred to the related description of the foregoing embodiment, and details are not described herein.
  • the power accumulation value is a power adjustment amount, and is used by the UE to adjust the transmission power of the random access preamble according to the success or failure of the random access.
  • the base station sends, on the second carrier, first information used to indicate the initial transmit power and the power accumulated value.
  • the base station may send first information, where the first information is used for initial transmit power and power accumulation value of the first carrier.
  • the first information may be a system message, an RRC signaling, a DCI information, or the like.
  • the initial transmit power and the accumulated value of the power may also be carried in two pieces of information for indication, which is not limited in the embodiment of the present invention.
  • the UE receives the first information on the second carrier to obtain the initial transmit power and the power accumulated value.
  • the UE sends a random access preamble on the first carrier according to the initial transmit power.
  • the UE adjusts the transmit power of the random access preamble based on the power accumulation value, and the adjusted transmit power is
  • the first carrier retransmits the random access preamble.
  • the UE may send the random access preamble to the base station by using the initial transmit power on the first carrier according to the initial transmit power of the first carrier.
  • the random access failure occurs, for example, when the random access response sent by the base station is not received within a certain time window, the random access failure is determined, and the UE may resend the random access preamble based on the power accumulated value.
  • the transmit power of the retransmitted random access preamble may be the power value of the previous random access preamble and then added to the power accumulating value.
  • the power that the UE sends the random access preamble for the first time may be the initial transmit power, when the random access is lost.
  • the UE may retransmit the random access preamble, and the power of the second transmission of the random access preamble by the UE may be the initial transmission power plus the power accumulation value.
  • the UE retransmits the random access preamble, and the power of the third time that the UE sends the random access preamble is the power of the second random access preamble plus the power accumulated value, that is, the initial transmit power. Plus double the power accumulation value. And so on, until random access is successful.
  • the initial transmit power may be a smaller power value to determine the transmit power when the random access is successful.
  • the UE sends an uplink signal on the first carrier according to the transmit power when the random access succeeds.
  • the UE may record the transmission power at the time of the success, so that the UE can perform uplink transmission on the first carrier based on the transmission power, such as sending uplink data or sending uplink. Reference signals and so on.
  • the base station receives the uplink signal sent by the UE according to the transmit power on the first carrier, so as to implement uplink transmission between the base station and the UE on the first carrier.
  • the base station can determine the initial transmit power and the power accumulation value, so that the UE can send the random access preamble on the first carrier with the initial transmit power, and adjust based on the power accumulation value when the random access fails.
  • the power is transmitted until the random access is successful, so that the uplink transmission can be performed based on the transmission power when the random access succeeds, which solves the problem that the uplink signal cannot be transmitted due to a large difference in carrier frequencies, and can implement different communication systems. Carrier sharing between.
  • FIG. 5 is a schematic diagram of interaction of still another communication method according to an embodiment of the present invention.
  • the communication method in the embodiment of the present invention may include the following steps:
  • the base station determines a difference between path losses of the first carrier and the second carrier.
  • the base station may determine a power parameter, where the power parameter includes a power adjustment parameter, where the power adjustment parameter is a difference between path loss of path loss of the first carrier and the second carrier.
  • the base station may determine a difference of the path loss based on carrier frequencies of the first carrier and the second carrier. Specifically, the base station may calculate a difference between the path loss of the first carrier and the second carrier according to a carrier frequency of the first carrier and the second carrier, and a path loss formula of the channel model of the first carrier and the second carrier.
  • the carrier frequency of the carrier or the second carrier the difference between the path loss of the first carrier and the second carrier may be determined according to the following formula: 20log10(fc1)-20log10(fc2); or, 20log(fc1/fc2); Where fc1 represents one of the carrier frequency of the first carrier and the carrier frequency of the second carrier, then fc2 represents the other of the carrier frequency of the first carrier and the carrier frequency of the second carrier.
  • the base station may determine the path based on a carrier frequency of the first carrier, a carrier frequency of the second carrier, and a pre-stored correspondence.
  • the difference in loss Specifically, a table may be predefined, and a possible manner is that the predefined table pre-stores a carrier frequency of the first carrier and the second carrier, and a corresponding path loss difference, so that the base station can
  • the carrier frequencies of the first carrier and the second carrier are obtained by looking up the difference between the path loss of the first carrier and the second carrier.
  • Table 1 A possible form of the form can be as shown in Table 1 below:
  • the predefined table pre-stores the quotient of the carrier frequency of the first carrier and the carrier frequency of the second carrier, and the difference of the corresponding path loss, so that the base station can The quotient of the carrier frequency of one carrier and the second carrier is checked to obtain the difference between the path loss of the first carrier and the second carrier.
  • Table 2 A possible form of the form can be as shown in Table 2 below:
  • the predefined table pre-stores the path loss corresponding to the carrier frequencies of the first carrier and the second carrier, so that the base station can check according to the carrier frequencies of the first carrier and the second carrier.
  • the table obtains the path loss corresponding to the first carrier and the second carrier respectively, and further calculates the difference between the path loss of the first carrier and the second carrier.
  • Table 3 A possible form of the form can be as shown in Table 3 below:
  • the base station may determine a difference between the path loss based on a path loss of the first carrier and a path loss of the second carrier. Specifically, the base station may determine the path loss of the UE in the first carrier according to the sending signal of the UE in the first carrier, and further, the base station may further determine the path loss of the UE in the second carrier according to the RSRP value of the second carrier reported by the UE. Therefore, the base station can obtain the difference between the path loss of the first carrier and the second carrier according to the path loss of the first carrier and the path loss of the second carrier.
  • the difference between the path loss of the first carrier and the second carrier obtained by the foregoing manner may be comprehensively adjusted to obtain the first
  • the difference between the path loss of the carrier and the second carrier for example, the average of the difference between the two is used as the difference between the determined path loss of the first carrier and the second carrier.
  • the base station sends, to the UE, the first information indicating a difference of the path loss on the second carrier.
  • the UE receives the first information on the second carrier, and obtains a difference in the path loss.
  • the base station may send, on the second carrier, first information, where the first information is used to indicate a difference between the path loss of the first carrier and the second carrier.
  • the UE may receive the first information on the second carrier, so as to obtain a difference between the path loss of the first carrier and the second carrier.
  • the first information may be a system message, an RRC signaling, a DCI information, and the like.
  • the first information may be a system message, an RRC signaling, a DCI information, and the like.
  • the base station sends a reference signal on the second carrier.
  • the UE receives the reference signal on the second carrier, measures the received power of the reference signal, and determines a path loss of the second carrier based on the transmit power and the received power of the reference signal.
  • the base station may further send a reference signal on the second carrier, where the UE receives the reference signal sent by the base station on the second carrier, and obtains the transmit power of the reference signal (the transmit power may be notified by the base station to the UE), as well as Measure the received power of the reference signal, so that the UE can obtain the path loss of the second carrier based on the transmit power of the reference signal on the second carrier and the received power of the reference signal, such as the transmit power of the reference signal and the reference signal.
  • the difference in received power is taken as the path loss of the second carrier.
  • the path loss of the second carrier may also be notified by the base station to the UE, for example, the path loss of the second carrier is indicated by the first information, and details are not described herein.
  • the UE determines a path loss of the first carrier according to a difference between a path loss of the first carrier and a path loss of the second carrier.
  • the UE sends an uplink signal on the first carrier based on a path loss of the first carrier.
  • the UE may determine the path loss of the first carrier according to the difference between the path loss of the first carrier and the second carrier and the path loss of the second carrier. . Further, after determining the path loss of the first carrier, the UE may determine the transmit power of the first carrier according to the path loss, so that the UE may perform uplink transmission on the first carrier according to the determined transmit power, such as Send uplink data or send an uplink reference signal, and so on.
  • the base station receives, on the first carrier, an uplink signal that is sent by the UE according to the path loss of the first carrier, so as to implement uplink transmission between the base station and the UE on the first carrier.
  • the base station determines the path loss of the first carrier and the second carrier and sends the difference to the UE, so that the UE can determine the path loss of the second carrier, and based on the difference and the second
  • the path loss of the carrier determines the path loss of the first carrier, and determines the transmit power of the uplink signal to implement uplink transmission based on the path loss of the first carrier, which solves the problem that the uplink signal cannot be sent due to a large difference in carrier frequency.
  • FIG. 6 is a schematic diagram of interaction of still another communication method according to an embodiment of the present invention.
  • the communication method of the embodiment of the present invention may include the following steps:
  • the UE determines a difference between path losses of the first carrier and the second carrier.
  • the UE may determine a power parameter, where the power parameter includes a power adjustment parameter, where the power adjustment parameter is a difference between path loss of path loss of the first carrier and the second carrier. That is, the difference in path loss can also be determined by the UE.
  • the determining, by the UE, the difference between the path loss based on the carrier frequencies of the first carrier and the second carrier, or The carrier frequency of the first carrier, the carrier frequency of the second carrier, and the pre-stored correspondence determine the difference of the path loss, or may determine the path loss based on the path loss of the first carrier and the path loss of the second carrier.
  • the difference The manner in which the UE determines the difference in the path loss is similar to the difference in the path loss determined by the base station, and is not described here.
  • the base station sends a reference signal on the second carrier.
  • the UE receives the reference signal on the second carrier, measures the received power of the reference signal, and determines a path loss of the second carrier based on the transmit power and the received power of the reference signal.
  • the UE determines a path loss of the first carrier according to a difference between a path loss of the first carrier and a path loss of the second carrier.
  • the UE sends an uplink signal on the first carrier based on a path loss of the first carrier.
  • the UE may determine the path loss of the first carrier according to the difference between the path loss of the first carrier and the second carrier and the path loss of the second carrier. . Further, after determining the path loss of the first carrier, the UE may determine the transmit power of the first carrier according to the path loss, so that the UE may send the uplink signal on the first carrier by using the determined transmit power.
  • the base station receives, on the first carrier, an uplink signal that is sent by the UE according to the path loss of the first carrier, so as to implement uplink transmission between the base station and the UE on the first carrier.
  • the difference between the path loss of the first carrier and the second carrier may be determined by the UE, so that the UE can determine the path of the first carrier based on the difference and the obtained path loss of the second carrier.
  • the loss is determined by determining the transmission power of the uplink signal based on the path loss of the first carrier, thereby solving the problem that the uplink signal cannot be transmitted due to a large difference in carrier frequency, and the carrier between different communication systems can be realized. shared.
  • FIG. 7 is a schematic diagram of interaction of still another communication method according to an embodiment of the present invention.
  • the communication method of the embodiment of the present invention may include the following steps:
  • the base station sends a reference signal on the second carrier.
  • the UE receives the reference signal on the second carrier, measures the received power of the reference signal, and determines a path loss of the second carrier based on the transmit power and the received power of the reference signal.
  • the base station may send a reference signal on the second carrier, where the UE receives the reference signal sent by the base station on the second carrier, and obtains the transmit power of the reference signal (the transmit power may be notified by the base station to the UE), and The received power of the reference signal is obtained, so that the UE can obtain the path loss of the second carrier based on the transmit power of the reference signal on the second carrier and the received power of the reference signal.
  • the UE sends an uplink signal on the first carrier according to the path loss of the second carrier.
  • the UE may determine the transmit power based on the path loss of the second carrier, and use the determined transmit power as the transmit power of the first carrier, thereby The determined transmission power transmits an uplink signal.
  • the base station may further configure an initial path loss compensation factor, and notify the UE of the path loss compensation factor, for example, send the path loss compensation factor to the UE in the second carrier. Therefore, the UE may determine the transmit power of the first carrier according to the path loss compensation factor configured by the base station and the path loss of the second carrier, and specifically, the path loss compensation factor may be introduced into the uplink power control formula, based on the second carrier. The path loss and the path loss compensation factor determine a corresponding transmit power, so that the UE can transmit the uplink signal at the transmit power on the first carrier.
  • the base station receives the uplink signal on the first carrier, measures received power of the uplink signal, and determines, according to the received power, a power adjustment parameter that includes a parameter used to adjust a path loss compensation factor.
  • the base station may determine a power parameter, where the power parameter may be a power adjustment parameter, and the power adjustment parameter may include a parameter used to adjust a path loss compensation factor.
  • the measured received power of the uplink signal is compared with a target received power of the UE, to determine whether the configured path loss compensation factor is too large or It is too small and generates parameters for adjusting the path loss compensation factor. For example, if it is determined that the received power of the uplink signal sent by the UE on the first carrier is greater than the target received power, the value of the path loss compensation factor is decreased, that is, the generated parameter for adjusting the path loss compensation factor is used to indicate The value of the path loss compensation factor is lowered; otherwise, the value of the path loss compensation factor is increased.
  • the parameter used for adjusting the path loss compensation factor may be
  • the adjusted path loss compensation factor may also be the difference between the path loss compensation factor before adjustment and the adjusted path loss compensation factor.
  • the target received power of the UE can be pre-configured.
  • the base station sends the first information to the UE on the second carrier.
  • the first information is used to indicate a power adjustment parameter, where the power parameter includes a parameter for adjusting a path loss compensation factor.
  • the UE receives the first information on the second carrier to obtain the parameter used to adjust the path loss compensation factor, and determines the adjusted path loss compensation factor according to the parameter used to adjust the path loss compensation factor.
  • the UE may receive the first information on the second carrier, so as to obtain a parameter for adjusting the path loss compensation factor included in the power adjustment parameter, to determine the adjustment based on the parameter used to adjust the path loss compensation factor. After the path loss compensation factor.
  • the UE may directly obtain the adjusted path loss compensation factor; when the parameter used to adjust the path loss compensation factor is The UE may determine the adjusted path loss compensation factor according to the difference and the path loss compensation factor before the adjustment, if the difference between the path loss compensation factor before the adjustment and the adjusted path loss compensation factor, such as the adjustment The sum of the previous path loss compensation factor and the difference is used as the adjusted path loss compensation factor.
  • the difference may be positive or negative. For example, when the base station determines that the current path loss compensation factor is too large, the difference is negative; otherwise, the current path loss compensation factor is small, and the difference is positive.
  • the UE sends an uplink signal on the first carrier according to the adjusted path loss compensation factor and the path loss of the second carrier.
  • the UE may bring the path loss compensation factor into the uplink power control formula, based on the path loss of the second carrier and The path loss compensation factor determines the corresponding transmit power, and the transmit power is used as the transmit power of the first carrier, so that the UE can perform uplink transmission on the first carrier according to the compensated transmit power, such as sending uplink data or sending an uplink reference. Signal and so on. Further, the UE and the base station may repeat the process of transmitting power based on the parameter adjustment method for adjusting the path loss compensation factor, until the received power of the uplink signal measured by the base station is the same as the target received power of the UE or the difference is preset.
  • the base station receives, on the first carrier, an uplink signal that is sent by the UE according to the adjusted path loss compensation factor and the path loss of the second carrier, so as to implement uplink transmission between the base station and the UE on the first carrier.
  • the UE may determine the path loss of the second carrier, and send an uplink signal on the first carrier according to the path loss of the second carrier, so that the base station can determine the received power of the uplink signal according to the measured.
  • a parameter for adjusting a path loss compensation factor so that the UE may determine the adjusted path loss compensation factor according to the parameter used for adjusting the path loss compensation factor, and further determine the path loss compensation factor and the path loss of the second carrier according to the adjusted path loss compensation factor
  • the transmission power of the uplink signal is transmitted on the first carrier, which improves the accuracy and reliability of the determined transmission power of the first carrier, and solves the problem that the uplink signal cannot be transmitted due to a large difference in carrier frequency. And can achieve carrier sharing between different communication systems.
  • FIG. 8 is a schematic diagram of interaction of still another communication method according to an embodiment of the present invention.
  • the communication method of the embodiment of the present invention may include the following steps:
  • the base station determines a parameter of the reference signal.
  • the reference signal is carried on the third carrier and sent by the base station to the UE, where the reference signal is used to determine a path loss of the first carrier.
  • the parameters of the reference signal may include a parameter for indicating a UE to determine a reference signal of the first carrier path loss, the parameter being used to indicate that the UE receives the reference signal on the third carrier.
  • the first carrier may be an uplink FDD carrier that uses the first RAT and the second RAT
  • the third carrier may be a downlink FDD carrier that uses the second RAT
  • the second carrier may be a carrier that adopts the first RAT.
  • the first carrier may be an uplink FDD carrier shared by the 5G NR and the LTE
  • the third carrier may be an LTE downlink FDD carrier paired with the first carrier
  • the second carrier may be a carrier of the 5G NR.
  • the reference signal may be a CRS of an LTE system transmitted by the base station on the third carrier.
  • the base station sends first information, in the second carrier, to the UE, to indicate a parameter of the reference signal.
  • the parameter of the reference signal may include at least one of a cell ID, a CRS transmission power, a CRS port number, a CRS time-frequency position information, a CRS sequence, and the like.
  • the parameter of the reference signal may be a parameter of LTE CRS port0.
  • the UE receives the first information on the second carrier to obtain a parameter of the reference signal, and receives the reference signal on the third carrier according to the parameter of the reference signal.
  • the UE measures the received power of the reference signal, and determines a path loss of the third carrier according to the received power of the reference signal and the transmit power of the reference signal.
  • the UE may receive the first information on the second carrier to obtain the parameter of the reference signal, so that the UE may receive the reference signal on the third carrier according to the parameter of the reference signal, for example, receive the CRS of the LTE port0, and measure the Received power of CRS. Therefore, the UE can determine the path loss of the third carrier according to the received power of the CRS and the transmit power of the CRS.
  • the transmit power of the CRS may be notified to the UE by the base station, for example, the transmit power is carried in the CRS.
  • the UE sends an uplink signal on the first carrier according to the path loss of the third carrier.
  • the UE may further determine the transmit power corresponding to the path loss of the third carrier according to the path loss, and further combine the uplink power control formula, and determine the transmit power.
  • the UE may perform uplink transmission on the first carrier according to the determined transmission power, such as sending uplink data or transmitting an uplink reference signal.
  • the base station receives, on the first carrier, an uplink signal that is sent by the UE according to the path loss of the third carrier, so as to implement uplink transmission between the base station and the UE on the first carrier.
  • the base station determines the parameter of the reference signal, and sends the first information for indicating the parameter of the reference signal on the second carrier, so that the UE can receive the reference signal on the third carrier according to the parameter of the reference signal. And measuring the received power of the reference signal, thereby determining a path loss of the third carrier according to the received power of the reference signal and the transmit power of the reference signal, and using the path loss of the third carrier as the first carrier Path loss, so that the uplink signal transmission power can be determined based on the path loss of the third carrier to implement the uplink transmission of the first carrier, which solves the problem that the uplink signal cannot be transmitted due to the large difference in carrier frequency, and can Implement carrier sharing between different communication systems.
  • FIG. 9 is a schematic structural diagram of an access network device according to an embodiment of the present invention.
  • the access network device in the embodiment of the present invention may include a determining module 11 and a communication module 12. among them,
  • the determining module 11 is configured to determine a power parameter, where the power parameter includes at least one of a transmit power and a power adjustment parameter of the terminal on the first carrier, where the first carrier is an uplink carrier;
  • the communication module 12 is configured to receive an uplink signal that is sent by the terminal based on the power parameter.
  • the communication module 12 is further configured to send the first information to the terminal, where the first information is used to indicate the power parameter.
  • the power parameter includes an initial transmit power of the terminal on the first carrier, and the first information is used to indicate the initial transmit power.
  • the communication module 12 is further configured to receive a reference signal that is sent by the terminal by using the initial transmit power.
  • the determining module 11 is further configured to obtain, by measurement, a received power of the reference signal
  • the communication module 12 is further configured to send, to the terminal, second information, where the second information is used to indicate the received power or indicate a path loss obtained by using the received power.
  • the initial transmit power is an initial transmit power of the random access preamble sent by the terminal to the access network device
  • the power parameter further includes the power adjustment parameter, where the power adjustment parameter is used to indicate And a power accumulated value, where the power accumulated value is used to adjust, by the terminal, the sending power of the random access preamble to the access network device.
  • the determining module 11 is specifically configured to:
  • the second carrier is a carrier carrying the first information
  • the power parameter includes the power adjustment parameter
  • the determining module 11 is specifically configured to: when determining a difference between path losses of the first carrier and the second carrier:
  • the pre-stored correspondence includes Corresponding relationship between a carrier frequency of the first carrier, a carrier frequency of the second carrier, and a path loss of the first carrier and the second carrier, or the pre-stored correspondence includes the first carrier a quotient of a carrier frequency and a carrier frequency of the second carrier, and a correspondence between a difference between path losses of the first carrier and the second carrier.
  • the difference between the path loss of the first carrier and the second carrier satisfies the following formula:
  • fc1 represents one of a carrier frequency of the first carrier and a carrier frequency of the second carrier
  • fc2 represents the other of a carrier frequency of the first carrier and a carrier frequency of the second carrier
  • the communication module 12 is further configured to receive an uplink signal sent by the terminal.
  • the determining module 11 is further configured to determine, according to the received power of the uplink signal, a parameter for adjusting a path loss compensation factor, where the power parameter is the power adjustment parameter, and the power adjustment parameter includes the Adjust the parameters of the path loss compensation factor.
  • the access network device may implement some or all of the steps of the communication method in the foregoing embodiments in FIG. 3 to FIG. 8 through the foregoing modules.
  • the embodiments of the present invention are device embodiments corresponding to the method embodiments, and the description of the method embodiments is also applicable to the embodiments of the present invention.
  • FIG. 10 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
  • the terminal in the embodiment of the present invention may include a determining module 21 and a communication module 22. among them,
  • the determining module 21 is configured to determine a power parameter, where the power parameter includes at least one of a transmit power and a power adjustment parameter of the terminal on the first carrier, where the first carrier is an uplink carrier;
  • the communication module 22 is configured to send an uplink signal on the first carrier based on the power parameter.
  • the communication module 22 is further configured to receive first information sent by the access network device, where the first information is used to indicate the power parameter.
  • the power parameter includes an initial transmit power of the terminal on the first carrier, and the first information is used to indicate the initial transmit power.
  • the communication module 22 is specifically configured to:
  • the access network device And receiving, by the access network device, the second information, where the second information is used to indicate the received power obtained by the access network device based on the reference signal or used to indicate a path loss obtained by using the received power;
  • An uplink signal is transmitted on the first carrier based on the received power or the path loss.
  • the second information is used to indicate the received power obtained by the access network device based on the reference signal;
  • the determining module 21 is further configured to: receive power based on the reference signal, and the initial sending Power, determining a path loss of the first carrier;
  • the communication module 22 is further configured to send an uplink signal on the first carrier based on the determined path loss.
  • the power parameter further includes the power adjustment parameter, where the power adjustment parameter is used to indicate information about a power accumulation value;
  • the communication module 22 may be specifically configured to:
  • the transmit power of the random access preamble is adjusted according to the power accumulation value, and the random access preamble is sent according to the adjusted transmit power until the random access succeeds;
  • the uplink signal is sent on the first carrier based on the transmit power when the random access succeeds.
  • the determining module 21 is further configured to obtain a path loss of the second carrier, where the second carrier is a carrier that carries the first information, and the power parameter includes the power adjustment parameter, The power adjustment parameter includes a difference between path losses of the first carrier and the second carrier;
  • the communication module 22 can be specifically configured to:
  • Transmitting power is determined based on a path loss of the second carrier and the difference, and an uplink signal is transmitted on the first carrier based on the determined transmit power.
  • the power parameter may include the power adjustment parameter, where the power adjustment parameter is a difference between a path loss of the first carrier and the second carrier; and the determining module 21 may be specifically configured to:
  • the difference between the path loss of the first carrier and the second carrier satisfies the following formula:
  • fc1 represents one of a carrier frequency of the first carrier and a carrier frequency of the second carrier
  • fc2 represents the other of a carrier frequency of the first carrier and a carrier frequency of the second carrier
  • the determining module 21 is further configured to obtain a path loss of the second carrier, and determine, according to the path loss of the second carrier, the transmit power, where the second carrier is the bearer of the first information.
  • the communication module 22 is further configured to send an uplink signal on the first carrier based on the determined transmit power, where the power parameter is the power adjustment parameter, and the power adjustment parameter includes a path loss compensation for adjusting a parameter of the factor, the parameter for adjusting a path loss compensation factor is determined by the access network device based on a received power of the uplink signal;
  • the communication module 22 is further configured to: adjust a transmit power based on a path loss of the second carrier and a parameter used to adjust a path loss compensation factor, and send an uplink signal on the first carrier based on the adjusted transmit power. .
  • the terminal may implement some or all of the steps of the communication method in the foregoing embodiments of FIG. 3 to FIG. 8 through the foregoing modules.
  • the embodiments of the present invention are device embodiments corresponding to the method embodiments, and the description of the method embodiments is also applicable to the embodiments of the present invention.
  • FIG. 11 is a schematic structural diagram of a communication system according to an embodiment of the present invention.
  • the communication system of the embodiment of the present invention may include an access network device and a terminal.
  • the access network device reference may be made to the related description of the base station in the foregoing embodiments in FIG. 3 to FIG. 8
  • the terminal may refer to the related description of the UE in the foregoing embodiment in FIG. 3 to FIG. 8 , and details are not described herein.
  • FIG. 12 is a schematic structural diagram of another access network device according to an embodiment of the present invention.
  • the access network device in the embodiment of the present invention may include: a communication interface 300, a memory 200, and a processor 100, and the processor 100 and the communication interface 300 and the memory respectively 200 connections.
  • the communication interface 300, the memory 200, and the processor 100 may be connected to each other through a bus, or may be connected by other means. In the present embodiment, a bus connection will be described.
  • the processor 100 may be a central processing unit (English: Central Processing Unit, CPU for short), a network processor (English: Network Processor, NP for short) or a combination of a CPU and an NP.
  • CPU Central Processing Unit
  • NP Network Processor
  • the processor 100 may further include a hardware chip.
  • the hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (English: Programmable Logic Device, PLD for short) or a combination thereof.
  • ASIC application-specific integrated circuit
  • PLD programmable logic device
  • the above PLD can be a Complex Programmable Logic Device (CPLD), a Field-Programmable Gate Array (FPGA), and a general array logic (English: Generic Array Logic, Referred to as GAL) or any combination thereof.
  • CPLD Complex Programmable Logic Device
  • FPGA Field-Programmable Gate Array
  • GAL Generic Array Logic
  • the memory 200 may include a volatile memory (English: Volatile Memory), such as a random access memory (RAM: RAM); the memory may also include a non-volatile memory (English: non-volatile memory) For example, flash memory (English: flash memory), hard disk (English: Hard Disk Drive, HDD) or solid state hard disk (English: Solid-State Drive, SSD for short); the memory 200 may also include a combination of the above types of memory .
  • a volatile memory such as a random access memory (RAM: RAM)
  • non-volatile memory English: non-volatile memory
  • flash memory English: flash memory
  • hard disk English: Hard Disk Drive, HDD
  • SSD Solid-State Drive
  • the memory 200 can be used to store program instructions.
  • the processor 100 calls the program instructions stored in the memory 200, and can perform one or more steps in the embodiment shown in FIG. 3 to FIG.
  • the implementation manner enables the access network device to implement the functions in the foregoing method.
  • FIG. 13 is a schematic structural diagram of another terminal according to an embodiment of the present invention.
  • the terminal in the embodiment of the present invention may include: a communication interface 600, a memory 500, and a processor 400, and the processor 400 is connected to the communication interface 600 and the memory 500, respectively.
  • the communication interface 600, the memory 500, and the processor 400 may be connected to each other through a bus, or may be connected by other means. In the present embodiment, a bus connection will be described.
  • the processor 400 can be a CPU, an NP or a combination of a CPU and an NP.
  • the processor 400 may further include a hardware chip.
  • the above hardware chip may be an ASIC, a PLD, or a combination thereof.
  • the above PLD may be a CPLD, an FPGA, a GAL, or any combination thereof.
  • the memory 500 may include a volatile memory (English: Volatile Memory), such as a RAM; the memory may also include a non-volatile memory (English: non-volatile memory), such as flash memory (HD memory), HDD Or SSD; the memory 500 may also include a combination of the above types of memories.
  • a volatile memory English: Volatile Memory
  • the memory may also include a non-volatile memory (English: non-volatile memory), such as flash memory (HD memory), HDD Or SSD; the memory 500 may also include a combination of the above types of memories.
  • the memory 500 can be used to store program instructions.
  • the processor 400 calls the program instructions stored in the memory 500, and can perform one or more steps in the embodiment shown in FIG. 3 to FIG.
  • the implementation manner enables the terminal to implement the functions in the above method.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the modules is only a logical function division.
  • there may be another division manner for example, multiple modules or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or module, and may be electrical, mechanical or otherwise.
  • the modules described as separate components may or may not be physically separated.
  • the components displayed as modules may or may not be physical modules, that is, may be located in one place, or may be distributed to multiple network modules. . Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional module in each embodiment of the present invention may be integrated into one processing module, or each module may exist physically separately, or two or more modules may be integrated into one module.
  • the above integrated modules can be implemented in the form of hardware or in the form of hardware plus software function modules.
  • the above-described integrated modules implemented in the form of software function modules can be stored in a computer readable storage medium.
  • the software function modules described above are stored in a storage medium and include instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform the methods of the various embodiments of the present invention. Part of the steps.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (English: Read-Only Memory, ROM for short), a random access memory (English: Random Access Memory, RAM), a magnetic disk, or an optical disk.

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Abstract

本申请公开了一种通信方法、接入网设备及终端，其中，该方法包括：接入网设备确定功率参数，其中，所述功率参数包括终端在第一载波上的发送功率和功率调整参数中的至少一个，所述第一载波为上行载波；所述接入网设备接收所述终端基于所述功率参数发送的上行信号。采用本申请，能够解决因通信载波的频率相差较大而导致的上行信号无法发送的问题。

Description

一种通信方法、接入网设备及终端
本申请要求于2016年12月30日提交中国专利局、申请号为201611262992.0、申请名称为“一种信息传输方法、接入网设备及终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及一种通信方法、接入网设备及终端。
背景技术
随着无线通信系统的演进，能够使用的频谱在不断扩展，如何实现通过不同频率的载波进行信息传输成为关键。在通过某一载波进行上行传输时，需要获取该载波的路径损耗以对上行传输进行功率限制，否则可能导致该载波上的上行数据无法发送。目前，因上行载波总是有对应的下行载波的，两个载波的载频相差比较小，路径损耗基本相同，因此，用户能够通过下行导频测量得到该路径损耗。如对于频分双工(英文：Frequency Duplexing Division，简称FDD)，存在成对的下行载波和上行载波，两个载波的载频相差较小，路径损耗基本上相同，在下行载波测量得到的信道路径损耗可以用于成对的上行载波的功率控制。又如对于时分双工(英文：Time Duplexing Division，简称TDD)，上行和下行在同一个载波，在下行子帧测量得到的路径损耗可以用于上行子帧的功率控制。
然而，对于一些通信载波的载频相差比较大的系统，载波间的路径损耗一般相差很大，这就导致用户无法将在一个载波测量得到的路径损耗直接用于另一个载波进行上行传输，若直接使用，则可能导致该另一个载波的上行数据无法发送。例如，随着通信系统的发展，要求下一代的通信系统不影响上一代的通信系统的性能，即要求与上一代通信系统共存。如长期演进(英文：Long Term Evolution，简称LTE)系统能够与第三代移动通信技术(英文：The Third Generation Mobile Communication Technology，简称3G)系统在临频共存，而由于第五代移动通信技术(英文：The Fifth Generation Mobile Communication Technology，简称5G)系统和LTE系统均支持6GHz以下的载波频率，因此，5G NR系统和LTE系统可以在6GHz以下的频率共存。5G NR和LTE可以共存在相同的频段，且5G NR和LTE的性能不能相互影响。从频带利用的角度来看，对于一些部署了LTE的频带，由于业务量的需求和变化，部署了LTE的频带有可能存在频带使用率比较低的情况，如对于上行频带，由于上行业务量比较小，LTE频分双工上行(英文：Frequency Duplexing Division Up-Link，FDD UL)频带的利用率较低，在这些频带，5G NR可以使用这些频带的一部分带宽，或者这些频带的一部分子帧用来承载5G NR的传输，即5G NR支持和LTE复用在一个频带，共享相同的频带资源。而5G NR与LTE的共享载波的载频一般与5G NR的专用载波的载频的相差较大，如共享载波的载频是2.0GHZ，5G NR的专有载波的载频为3.5GHz，或者5G NR的专有载波的为载频更高的频段，两者的路径损耗相差较大，这就使得在5G NR专用载波测量得到的路径损耗无法直接用于共享载波进行上行传输。
发明内容
本申请提供一种通信方法、接入网设备及终端，能够解决因通信载波的频率相差较大而导致的上行信号无法发送的问题。
第一方面，本申请提供了一种通信方法，包括：
接入网设备确定功率参数，并可接收所述终端基于该功率参数发送的上行信号。
在一些可能的实现中，在接入网设备确定功率参数之后，接入网设备还可向终端发送第一信息，该第一信息用于指示该功率参数。
也就是说，终端基于的功率参数可以是接入网设备确定并发送给终端的，也可以是终端直接确定出的。
其中，该功率参数包括终端在第一载波上的发送功率和功率调整参数中的至少一个，该第一载波为上行载波。
该第一信息可以是通过第二载波承载的。比如，该第一载波可以为采用第一无线接入技术(英文：Radio Access Technology，简称RAT)和采用第二RAT的上行频分双工(英文：Frequency Duplexing Division，简称FDD)载波，该第二载波可以为采用该第一RAT的载波；又如，该第一载波可以为采用第一RAT的上行载波，该第二载波也可以为采用第一RAT的载波。
可选的，该第一信息可以为高层信息，比如系统消息，或者无线资源控制(英文：Radio Resource Control，简称RRC)信令。或者，可选的，该第一信息还可以为物理层下行控制信息(英文：Downlink Control Information，简称DCI)。
在一些可能的实现中，该功率参数可包括该终端在第一载波上的初始发送功率，该第一信息用于指示所述初始发送功率。在接入网设备向终端发送第一信息之后，还包括：接入网设备接收终端用该初始发送功率发送的参考信号；通过测量获得该参考信号的接收功率；向该终端发送第二信息，该第二信息用于指示该接收功率或者指示通过该接收功率获得的路径损耗。
其中，该参考信号是通过第一载波承载的，该第二信息是通过第二载波承载的。接入网设备在测量得到该参考信号的接收功率之后，可直接向终端发送第二信息，即该第二信息用于指示该接收功率；或者，接入网设备在测量得到该参考信号的接收功率之后，还可进一步根据该接收功率和该初始发送功率确定出该第一载波的路径损耗，并向终端发送第二信息，即该第二信息用于指示该确定出的路径损耗。
在一些可能的实现中，该功率参数可包括该终端在第一载波上的初始发送功率，该第一信息用于指示该初始发送功率。进一步的，该初始发送功率可以为终端向接入网设备发送随机接入前导的初始发送功率，则该功率参数还可包括功率调整参数，该功率调整参数用于指示功率累加值的信息，该功率累加值用于调整终端向接入网设备发送该随机接入前导的发送功率。
可选的，该第一载波上的初始发送功率可以是基站预先配置的，还可以是基站根据UE的位置确定出的。
在一些可能的实现中，该功率参数包括功率调整参数，该功率调整参数为该路径损耗的差值；则接入网设备确定功率参数，包括：接入网设备确定第一载波和第二载波的路径 损耗的差值，其中，该第二载波为承载该第一信息的载波。
可选的，该第一载波和第二载波的路径损耗的差值可以是基站基于第一载波和第二载波的载频确定出的，也可以是基于第一载波的路径损耗和第二载波的路径损耗确定出的。
在一些可能的实现中，接入网设备确定所述第一载波和第二载波的路径损耗的差值，包括：接入网设备基于该第一载波的载频和第二载波的载频，确定该第一载波和该第二载波的路径损耗的差值；或者，接入网设备基于该第一载波的载频、第二载波的载频以及预存的对应关系确定该第一载波和第二载波的路径损耗的差值。
其中，该预存的对应关系可包括第一载波的载频、第二载波的载频以及该第一载波和第二载波的路径损耗的差值的对应关系；或者，所述预存的对应关系包括所述第一载波的载频与所述第二载波的载频的商值，以及所述第一载波和第二载波的路径损耗的差值的对应关系；或者，该预存的对应关系可以包括第一载波的载频以及该第一载波对应的路径损耗、第二载波的载频以及该第二载波对应的路径损耗的对应关系，其中，路径损耗的差值为该第一载频对应的路径损耗与该第二载波的载频对应的路径损耗的差值。
在一些可能的实现中，该第一载波和第二载波的路径损耗的差值满足如下公式：20log10(fc1)-20log10(fc2)；或者，20log(fc1/fc2)。其中，fc1表示该第一载波的载频和第二载波的载频中的一个，fc2表示该第一载波的载频和第二载波的载频中的另一个。
在一些可能的实现中，该功率参数为该功率调整参数，该功率调整参数包括该用于调整路径损耗补偿因子的参数；则接入网设备确定功率参数，包括：接入网设备接收终端发送的上行信号；基于该上行信号的接收功率确定用于调整路径损耗补偿因子的参数。
可选的，该用于调整路径损耗补偿因子的参数可以是通过将测量得到的该上行信号的接收功率与终端的目标接收功率比较，并基于比较结果确定出的。其中，该用于调整路径损耗补偿因子的参数可以为调整后的路径损耗补偿因子，或者，也可以为调整前的路径损耗补偿因子与调整后的路径损耗补偿因子的差值。该目标接收功率可以预先配置得到。
进一步可选的，基站还可预先配置一个初始的路径损耗补偿因子，并将该路径损耗补偿因子通知给终端，如在第二载波向终端发送该路径损耗补偿因子。
第二方面，本申请还提供了一种通信方法，包括：
终端确定功率参数，并基于该功率参数在第一载波发送上行信号。
在一些可能的实现中，终端确定功率参数，包括：终端接收接入网设备发送的第一信息，该第一信息用于指示该功率参数。
其中，该第一信息用于指示功率参数，该功率参数包括终端在第一载波上的发送功率和功率调整参数中的至少一个，该第一载波为上行载波。该第一信息是通过第二载波承载的。比如，该第一载波可以为采用第一RAT和采用第二RAT的上行FDD载波，该第二载波可以为采用该第一RAT的载波；又如，该第一载波可以为采用第一RAT的上行载波，该第二载波也可以为采用第一RAT的载波。
可选的，该第一信息可以为系统消息、RRC信令、DCI信息等等。
在一些可能的实现中，该功率参数包括终端在该第一载波上的初始发送功率，该第一信息用于指示该初始发送功率。则终端基于该功率参数在第一载波发送上行信号，包括：终端基于该初始发送功率向该接入网设备发送参考信号；接收该接入网设备发送的第二信 息，该第二信息用于指示该接入网设备基于该参考信号获得的接收功率或者用于指示该接入网设备通过所述接收功率获得的路径损耗；基于该接收功率或者该路径损耗在该第一载波发送上行信号。
其中，该参考信号是通过第一载波承载的，该第二信息是通过第二载波承载的。该第二信息指示的可以是该参考信号的接收功率，也可以是接入网设备基于该接收功率确定出的该第一载波的路径损耗。
在一些可能的实现中，该第二信息指示的是该参考信号的接收功率；则终端基于该接收功率在该第一载波发送上行信号，包括：终端基于该参考信号的接收功率以及该初始发送功率，确定出该第一载波的路径损耗；基于确定出的该路径损耗在该第一载波发送上行信号。
在一些可能的实现中，该功率参数包括终端在该第一载波上的初始发送功率，该功率参数还包括该功率调整参数，该功率调整参数用于指示功率累加值的信息，即该第一信息用于指示该初始发送功率和该功率累加值。进一步的，终端基于该功率参数在该第一载波发送上行信号，包括：终端基于该初始发送功率向该接入网设备发送随机接入前导；若随机接入失败，终端基于该功率累加值调整发送该随机接入前导的发送功率，并以调整后的发送功率发送该随机接入前导，直到随机接入成功；当随机接入成功时，终端基于随机接入成功时的发送功率在该第一载波发送上行信号。
其中，该随机接入前导是通过第一载波承载的。可选的，当随机接入失败时，终端可基于该功率累加值重新发送随机接入前导，该重新发送的随机接入前导的发送功率可以为前一次发送该随机接入前导的功率值再累加上该功率累加值。
在一些可能的实现中，该功率参数包括该功率调整参数，该功率调整参数包括该第一载波和第二载波的路径损耗的差值；终端还可获取第二载波的路径损耗；其中，该第二载波为承载该第一信息的载波。则终端基于该功率参数在该第一载波发送上行信号，包括：终端基于该第二载波的路径损耗和该差值确定发送功率，并基于确定出的发送功率在该第一载波发送上行信号。
可选的，接入网设备可在第二载波发送参考信号，终端可在该第二载波接收基站在第二载波发送的参考信号，并获取得到该参考信号的发送功率，以及测量得到该参考信号的接收功率，从而终端能够基于第二载波上该参考信号的发送功率和该参考信号的接收功率，得到第二载波的路径损耗，比如该参考信号的发送功率与该参考信号的接收功率的差值作为该第二载波的路径损耗。
在一些可能的实现中，该功率参数可包括功率调整参数，该功率调整参数为该第一载波和第二载波的路径损耗的差值；则终端确定功率参数，包括：终端基于该第一载波的载频和第二载波的载频，确定该第一载波和该第二载波的路径损耗的差值；或者，终端基于该第一载波的载频、第二载波的载频以及预存的对应关系确定该第一载波和第二载波的路径损耗的差值。
其中，该预存的对应关系可包括第一载波的载频、第二载波的载频以及该第一载波和第二载波的路径损耗的差值的对应关系；或者，所述预存的对应关系包括所述第一载波的载频与所述第二载波的载频的商值，以及所述第一载波和第二载波的路径损耗的差值的对 应关系；或者，该预存的对应关系可以包括第一载波的载频以及该第一载波对应的路径损耗、第二载波的载频以及该第二载波对应的路径损耗的对应关系，其中，路径损耗的差值为该第一载频对应的路径损耗与该第二载波的载频对应的路径损耗的差值。从而终端能够通过自身确定出的该第一载波和第二载波的路径损耗的差值，以及获取的第二载波的路径损耗确定出该第一载波的上行信号的发送功率。
在一些可能的实现中，该第一载波和第二载波的路径损耗的差值满足如下公式：20log10(fc1)-20log10(fc2)；或者，20log(fc1/fc2)。其中，fc1表示该第一载波的载频和第二载波的载频中的一个，fc2表示该第一载波的载频和第二载波的载频中的另一个。
在一些可能的实现中，终端还可获取第二载波的路径损耗；其中，该第二载波为承载该第一信息的载波；终端基于该第二载波的路径损耗确定发送功率，并基于确定出的发送功率在该第一载波发送上行信号；其中，该功率参数为该功率调整参数，该功率调整参数包括用于调整路径损耗补偿因子的参数，该用于调整路径损耗补偿因子的参数可以是该接入网设备基于该上行信号的接收功率确定出的。进一步的，终端基于该功率参数在该第一载波发送上行信号，包括：终端基于该第二载波的路径损耗和该用于调整路径损耗补偿因子的参数调整发送功率，并基于调整后的发送功率在该第一载波发送上行信号。
可选的，终端可根据基站配置的路径损耗补偿因子，以及该第二载波的路径损耗，确定第一载波的发送功率，从而UE可在第一载波基于该路径损耗补偿因子补偿后的发送功率发送上行信号。
进一步可选的，该用于调整路径损耗补偿因子的参数可以为调整后的路径损耗补偿因子，或者，也可以为调整前的路径损耗补偿因子与调整后的路径损耗补偿因子的差值。
第三方面，本申请还提供了一种通信方法，包括：
接入网设备确定参考信号的参数，所述参考信号承载在第三载波上由所述接入网设备发送给所述终端，所述参考信号用于确定所述第一载波的路径损耗；
所述接入网设备通过第二载波向所述终端发送第一信息，所述第一信息用于指示所述参考信号的参数；
其中，所述第一载波为采用第一RAT和采用第二RAT的上行FDD载波，所述第三载波为采用所述第二RAT的下行FDD载波，所述第二载波为采用所述第一RAT的载波。
在一些可能的实现中，该参考信号的参数可以为所述第三载波的小区参考信号(英文：Cell Reference Signal，简称CRS)的参数，所述CRS的参数可包括小区编号、发送功率、序列生成方式和时频位置中的至少一个。
第四方面，本申请还提供了一种通信方法，包括：
终端在第二载波接收接入网设备发送的第一信息，所述第一信息用于指示参考信号的参数，所述参考信号承载在第三载波上由所述接入网设备发送给所述终端，所述参考信号用于确定第一载波的路径损耗；
所述终端基于所述参考信号的参数在所述第三载波接收参考信号，并基于所述参考信号确定所述第三载波的路径损耗；
所述终端基于所述第三载波的路径损耗，在所述第一载波发送上行信号。
在一些可能的实现中，所述参考信号的参数可以为所述第三载波的CRS的参数，所述 CRS的参数可包括小区编号、发送功率、序列生成方式和时频位置中的至少一个。
在一些可能的实现中，该终端基于所述参考信号确定所述第三载波的路径损耗，可以具体为：所述终端测量得到所述参考信号的接收功率，并基于所述参考信号的发送功率和所述参考信号的接收功率确定所述第三载波的路径损耗。从而终端能够将该第三载波的路径损耗作为该第一载波的路径损耗，确定出该第三载波的路径损耗对应的发送功率，该发送功率即为第一载波的发送功率，从而UE可按照该确定出的发送功率在第一载波进行上行传输。
第五方面，本申请还提供了一种接入网设备，所述接入网设备包括：确定模块和通信模块，该接入网设备通过上述模块实现上述第一方面的通信方法的部分或全部步骤或实现上述第三方面的通信方法的部分或全部步骤。
第六方面，本申请还提供了一种终端，该终端包括：确定模块和通信模块，该终端通过上述模块实现上述第二方面的通信方法的部分或全部步骤或实现上述第四方面的通信方法的部分或全部步骤。
第七方面，本申请还提供了一种计算机存储介质，所述计算机存储介质存储有程序，所述程序执行时包括上述第一方面的通信方法的部分或全部的步骤或包括上述第三方面的通信方法的部分或全部步骤。
第八方面，本申请还提供了一种计算机存储介质，所述计算机存储介质存储有程序，所述程序执行时包括上述第二方面的通信方法的部分或全部的步骤或包括上述第四方面的通信方法的部分或全部步骤。
第九方面，本申请还提供了一种接入网设备，包括：通信接口、存储器和处理器，所述处理器分别与所述通信接口及所述存储器连接；其中，
所述存储器用于存储程序指令；
所述处理器用于调用所述存储器中的程序指令执行上述第一方面的通信方法的部分或全部的步骤或执行上述第三方面的通信方法的部分或全部步骤。
第十方面，本申请还提供了一种终端，包括：通信接口、存储器和处理器，所述处理器分别与所述通信接口及所述存储器连接；其中，
所述存储器用于存储程序指令；
所述处理器用于调用所述存储器中的程序指令执行上述第二方面的通信方法的部分或全部步骤或执行上述第四方面的通信方法的部分或全部步骤。
第十一方面，本申请还提供了一种通信系统，包括接入网设备和终端；其中，所述接入网设备用于执行上述第一方面的通信方法的部分或全部步骤或执行上述第三方面的通信方法的部分或全部步骤；所述终端用于执行上述第二方面的通信方法的部分或全部步骤或执行上述第四方面的通信方法的部分或全部步骤。
在本申请提供的技术方案中，基站通过确定包括终端在第一载波上的发送功率和/或功率调整参数的功率参数，并将该功率参数发送给终端，使得终端能够基于该功率参数在第一载波上发送上行参考信号，即实现第一载波的上行传输，这就解决了因载波频率相差较大而导致的上行信号无法发送的问题，并能够实现不同通信系统间的载波共享。
附图说明
图1是本发明实施例提供的一种通信系统的架构图；
图2是本发明实施例提供的一种5G系统和LTE系统使用的频段的示意图；
图3是本发明实施例提供的一种通信方法的交互示意图；
图4是本发明实施例提供的另一种通信方法的交互示意图；
图5是本发明实施例提供的又一种通信方法的交互示意图；
图6是本发明实施例提供的又一种通信方法的交互示意图；
图7是本发明实施例提供的又一种通信方法的交互示意图；
图8是本发明实施例提供的又一种通信方法的交互示意图；
图9是本发明实施例提供的一种接入网设备的结构示意图；
图10是本发明实施例提供的一种终端的结构示意图；
图11是本发明实施例提供的一种通信系统的结构示意图；
图12是本发明实施例提供的另一种接入网设备的结构示意图；
图13是本发明实施例提供的另一种终端的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，描述本申请中的技术方案。
本申请涉及的“第一”、“第二”等是用于区别不同对象，而非用于描述特定顺序。此外，术语“包括”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或模块的过程、方法、系统、产品或设备没有限定于已列出的步骤或模块，而是可选地还包括没有列出的步骤或模块，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或模块。
应理解，本申请的技术方案可应用于采用各种无线接入技术的通信系统，如码分多址(英文：Code Division Multiple Access，简称CDMA)、宽带码分多址(英文：Wideband Code Division Multiple Access，简称WCDMA)、时分同步码分多址(英文：Time Division-Synchronous Code Division Multiple Access，简称TD-SCDMA)、通用移动通信系统(英文：Universal Mobile Telecommunication System，简称UMTS)、长期演进(英文：Long Term Evolution，简称LTE)系统、第五代移动通信技术(英文：The Fifth Generation Mobile Communication Technology，简称5G)等，本发明实施例不做限定，随着无线接入技术的不断发展，本申请的技术方案还可用于未来网络。
在本申请中，终端还可称之为用户设备(英文：User Equipment，简称UE)、移动台(英文：Mobile Station，简称MS)、无线终端或移动终端等。其可以经无线接入网(如RAN，radio access network)与一个或多个核心网进行通信，终端可以是移动终端，如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机，还可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据，等等。在本申请中，接入网设备可以是基站，例如可以是GSM或CDMA中的基站，如基站收发台(英文：Base Transceiver Station，简称BTS)，也可以是WCDMA中的基站，如NodeB，还可以是LTE中的演进型基站，如eNB或e-NodeB(evolutional Node B)，5G系统中的 基站，或其他未来网络中的基站，本发明实施例不做限定。
下面对本发明实施例的应用场景进行介绍。请参见图1，图1是本发明实施例提供的一种通信系统的架构图。具体的，如图1所示，该通信系统中包括接入网设备和终端，接入网设备与终端之间可采用各种无线接入技术，从而实现通信。本发明实施例以接入网设备为基站，终端为UE为例进行说明，基站和UE之间可通过各种无线接入技术进行通信，比如上述无线通信系统中的5G系统，具体可以是5G NR系统，又如LTE系统、3G系统等等。
具体的，5G NR系统既可以支持6GHz以下的载频(即载波频率)，也可以支持6GHz以上，如30GHz的载频，既可以支持单载波方式，也可以支持多载波聚合方式。LTE系统支持6GHz以下的载频，包括成对FDD频带，非成对TDD频带，以及相同双工方式或者不同双工方式的载波聚合。由此，在6GHz以下的频带，5G NR和LTE可以共存在相同的频带，即5G NR和LTE可以共享6GHz以下的频带。进一步的，从频带利用的角度来看，对于一些部署了LTE的频带，由于业务量的需求和变化，部署了LTE的频带中有可能存在频率使用率比较低的情况，如对于上行频带，由于上行业务量比较小，LTE FDD上行频带的利用率较低，从而5G NR可以使用这部分频带的一部分带宽，或者这部分频带的一部分子帧来承载5G NR的信息传输，即5G NR支持和LTE复用在一个频带，以共享相同的频率资源。
例如，如图2所示，5G NR与LTE可共享使用LTE的FDD上行载波，假设5G NR与LTE的共享载波为第一载波，其频带为f2；5G NR专用载波为第二载波，其频带为f3；LTE专用载波为第三载波，其为LTE的FDD下行载波，其频段为f1。其中，5G NR使用的两个载波，第一载波和第二载波的载频不同，5G NR中的UE可在第一载波进行上行传输，可在第二载波进行下行传输，或者可在第二载波进行下行传输和上行传输。UE在第一载波进行上行传输时需获取第一载波的路径损耗，以进行功率控制，从而实现使用共享的LTE的FDD上行载波与基站进行通信。
又例如，假设5G NR部署在载频较高的载波，即5G NR的主载波，如为第二载波。为了保证5G NR系统的覆盖，需要再部署一段低频载波作为辅载波，如为第一载波，即第一载波和第二载波的载频不同。在载波分配时，该第一载波可能与其他通信系统的载波相邻，如可能与LTE的载波相邻，也可能与3G的载波相邻。为了减少对相邻载波的通信系统的影响，该第一载波可以仅用于传输5G NR的上行信号。又或者，在载波分配时，LTE FDD频谱的上行载波由于负载很低可以完全用于NR系统，该第一载波仅用于传输5G NR的上行信号。UE在第一载波进行上行传输时需获取第一载波的路径损耗，以进行功率控制，从而实现使用该第一载波与基站进行通信。
本申请公开了一种信息发送方法、接入网设备、终端及系统，能够解决因通信载波的频率相差较大而导致的上行信号无法发送的问题。以下分别详细说明。
请参见图3，图3是本发明实施例的一种通信方法的交互示意图。具体的，如图3所示，本发明实施例的所述通信方法可包括以下步骤：
101、基站确定UE在第一载波的初始发送功率。
具体的，基站可确定出功率参数，该功率参数包括UE在第一载波上的初始发送功率， 也即，该初始发送功率用于UE在所述第一载波发送参考信号。
可选的，基站在确定该第一载波上的初始发送功率时，该第一载波上的初始发送功率可以是基站预先配置的。例如，当基站在第二载波上只能发送下行信号时，基站无法获知UE在小区中的位置信息，由此，基站可确定一个全网统一的发送功率。进一步可选的，该初始发送功率可以为23dBm，或者其他值，本发明实施例不做限定。
可选的，基站在确定该第一载波上的初始发送功率时，该第一载波上的初始发送功率还可以是基站根据UE的位置确定出的。例如，当基站在第二载波上既可以发送下行信号，也可以接收UE发送的上行信号时，基站可以根据UE上报的参考信号接收功率(英文：Reference Signal Received Power，简称RSRP)信息，判断出UE在基站覆盖小区的位置，如判断UE是处于小区中心，还是处于小区边缘，来确定初始发送功率。进一步可选的，可预先设置一个功率阈值，当RSRP大于或等于该功率阈值时，基站可判断UE为小区中心用户，则可为其分配一个较低的初始发送功率，比如15dBm；当RSRP小于该功率阈值时，基站可判断UE为小区边缘用户，则可为其分配一个较高的初始发送功率，比如23dBm。
可选的，该第一载波上的初始发送功率还可以是通过其他方式确定出的，如通过其他网络侧设备获取该初始发送功率并通知给基站及UE的，本发明实施例不做限定。
102、基站在第二载波向UE发送用于指示该初始发送功率的第一信息。
具体的，基站可确定出功率参数，该功率参数包括UE在第一载波上的初始发送功率，也即，该初始发送功率用于UE在第一载波发送参考信号。在确定该初始发送功率之后，基站可在第二载波发送第一信息，该第一信息用于指示在该第一载波上的初始发送功率。
可选的，该第一信息可以为高层信息，比如系统消息，或者RRC信令。或者，可选的，该第一信息还可以为物理层下DCI信息。例如，该初始发送功率为基站预先配置的方式确定出时，该第一信息可以为系统消息。又如，该初始发送功率为基站根据UE的位置确定出时，该第一信息可以为RRC信令或者DCI信息，等等，此处不一一列举。
103、UE在第二载波接收该第一信息，以获取该初始发送功率。
104、UE根据该初始发送功率，在第一载波发送上行参考信号。
具体的，UE可接收基站发送的第一信息，并确定出该第一信息指示的初始发送功率，从而UE可按照该初始发送功率在第一载波上发送上行参考信号。
105、基站在第一载波接收该上行参考信号，并测量得到该上行参考信号的接收功率。
106、基站在第二载波发送第二信息。
可选的，基站可以根据测量得到的该上行参考信号的接收功率和UE在第一载波的初始发送功率，计算得到UE与基站在第一载波的路径损耗，比如将该初始发送功率和该接收功率的差值作为该路径损耗。
进一步的，基站在接收到UE发送的上行参考信号之后，可通过第二载波向UE发送第二信息。其中，该第二信息可用于指示该接收功率；或者，该第二信息还可用于指示通过该接收功率获得的路径损耗。
107、UE在第二载波接收该第二信息，并获取在第一载波的路径损耗。
具体的，UE在接收到该第二信息之后，即可获取得到UE与基站在第一载波的路径损耗。可选的，该路径损耗可以是该第二信息直接指示的；或者，若该第二信息仅指示有该 上行参考信号的接收功率，UE可根据第二信息指示的接收功率和该第一信息指示的初始发送功率，计算得到该路径损耗。
108、UE根据该路径损耗，在第一载波上发送上行信号。
具体的，UE在获取得到第一载波的路径损耗之后，即可根据该路径损耗，并可进一步结合上行功率控制公式，确定出在第一载波的发送功率，从而UE可以该确定出的发送功率在第一载波进行上行传输，如发送上行数据或者发送上行参考信号等等。基站在第一载波接收UE根据该路径损耗发送的上行信号，从而实现基站与UE之间在第一载波的上行传输。
在本发明实施例中，基站通过确定初始发送功率，使得UE能够以该初始发送功率在第一载波上发送上行参考信号，从而能够基于该上行参考信号的接收功率和该初始发送功率确定出该第一载波的路径损耗，以基于该路径损耗确定出上行信号的发送功率以实现第一载波的上行传输，这就提升了获取的路径损耗的准确性和可靠性，解决了载波频率相差较大而导致的上行信号无法发送的问题，并能够实现不同通信系统间的载波共享。
请参见图4，图4是本发明实施例的另一种通信方法的交互示意图。具体的，如图4所示，本发明实施例的所述通信方法可包括以下步骤：
201、基站确定UE在第一载波的初始发送功率和功率累加值。
具体的，基站可确定出功率参数，该功率参数包括UE在第一载波上的初始发送功率，该初始发送功率为UE向基站发送随机接入前导的初始发送功率。进一步的，该功率参数还包括功率调整参数，用于指示功率累加值的信息，该功率累加值可用于调整UE向基站发送随机接入前导的发送功率。
可选的，该基站确定该初始发送功率的方式可参照上述实施例的相关描述，此处不赘述。进一步可选的，该功率累加值为一个功率调整量，用于UE根据随机接入的成功或者失败情况调整随机接入前导的发送功率。
202、基站在第二载波发送用于指示该初始发送功率和功率累加值的第一信息。
可选的，基站可在第二载波发送第一信息，该第一信息用于在第一载波的初始发送功率和功率累加值。进一步可选的，该第一信息可以为系统消息、RRC信令、DCI信息等等，具体可参照上述实施例的相关描述，此处不赘述。此外，该初始发送功率和该功率累加值还可分别携带于两条信息中进行指示，本发明实施例不做限定。
203、UE在第二载波接收该第一信息，以获取该初始发送功率和功率累加值。
204、UE根据该初始发送功率，在第一载波发送随机接入前导，当随机接入失败时，UE基于该功率累加值调整发送随机接入前导的发送功率，并以调整后的发送功率在第一载波重新发送随机接入前导。
可选的，UE可根据第一载波的初始发送功率，在第一载波以该初始发送功率向基站发送随机接入前导。当发生随机接入失败时，比如可在一定的时间窗长内没有接收到基站发送的随机接入响应时，确定随机接入失败，则UE可基于该功率累加值重新发送随机接入前导，例如，该重新发送的随机接入前导的发送功率可以为前一次发送该随机接入前导的功率值再累加上该功率累加值。
举例来说，UE第一次发送随机接入前导的功率可以为该初始发送功率，当随机接入失 败时，UE可重新发送随机接入前导，UE第二次发送随机接入前导的功率可以为该初始发送功率加上该功率累加值。当随机接入失败时，UE重新发送随机接入前导，UE第三次发送随机接入前导的功率为第二次发送随机接入前导的功率加上该功率累加值，也就是该初始发送功率加上两倍该功率累加值。以此类推，直到随机接入成功。其中，该初始发送功率可以为一个较小的功率值，以便于确定出该随机接入成功时的发送功率。
205、当随机接入成功时，UE基于该随机接入成功时的发送功率在第一载波上发送上行信号。
具体的，当发送随机接入前导成功，即随机接入成功时，UE可记录该成功时的发送功率，从而UE能够基于该发送功率在第一载波进行上行传输，如发送上行数据或者发送上行参考信号等等。基站在第一载波接收UE根据该发送功率发送的上行信号，从而实现基站与UE之间在第一载波的上行传输。
在本发明实施例中，基站通过确定初始发送功率和功率累加值，使得UE能够以该初始发送功率在第一载波上发送随机接入前导，并在随机接入失败时基于该功率累加值调整发送功率，直到随机接入成功，从而能够基于该随机接入成功时的发送功率进行上行传输，这就解决了载波频率相差较大而导致的上行信号无法发送的问题，并能够实现不同通信系统间的载波共享。
请参见图5，图5是本发明实施例的又一种通信方法的交互示意图。具体的，如图5所示，本发明实施例的所述通信方法可包括以下步骤：
301、基站确定第一载波和第二载波的路径损耗的差值。
具体的，基站可确定出功率参数，该功率参数包括功率调整参数，该功率调整参数为第一载波和第二载波的路径损耗的路径损耗的差值。
可选的，基站在确定该第一载波和第二载波的路径损耗的差值时，可以是基于第一载波和第二载波的载频确定出该路径损耗的差值。具体的，基站可根据第一载波和第二载波的载频，以及第一载波和第二载波的信道模型的路径损耗的公式，计算得到第一载波和第二载波的路径损耗的差值。例如，该第一载波和第二载波的路径损耗的公式为PL＝22.0log10(d3D)+28.0+20log10(fc)，其中PL为路径损耗，d3D为UE与基站的距离，fc为该第一载波或第二载波的载频，则该第一载波和第二载波的路径损耗的差值可按照如下公式确定出：20log10(fc1)-20log10(fc2)；或者，20log(fc1/fc2)；其中，fc1表示第一载波的载频和第二载波的载频中的一个，则fc2表示第一载波的载频和第二载波的载频中的另一个。可选的，基站在确定该第一载波和第二载波的路径损耗的差值时，也可以是基于该第一载波的载频、第二载波的载频以及预存的对应关系确定出该路径损耗的差值。具体的，可预定义一个表格，一种可能的方式为，该预定义的表格预先存储了该第一载波和第二载波的载频，以及对应的路径损耗的差值，从而基站可根据该第一载波和第二载波的载频，查表得到第一载波和第二载波的路径损耗的差值。该表格的一种可能的形式可以为如下表一所示：
表一
载频 路径损耗差值(dB)
f1,f2 5
f1,f3 15
f2,f3 10
另一种可能的方式为，该预定义的表格预先存储了该第一载波的载频与该第二载波的载频的商值，以及对应的路径损耗的差值，从而基站可根据该第一载波和第二载波的载频的商值，查表得到第一载波和第二载波的路径损耗的差值。该表格的一种可能的形式可以为如下表二所示：
表二
载频商值(f1/f2) 路径损耗差值(dB)
f1/f2 5
f1/f3 15
再一种可能的方式为，该预定义的表格预先存储了该第一载波和第二载波的载频分别对应的路径损耗，从而基站可根据该第一载波和第二载波的载频，查表得到第一载波和第二载波分别对应的路径损耗，进而计算得到第一载波和第二载波的路径损耗的差值。该表格的一种可能的形式可以为如下表三所示：
表三
载频 路径损耗(dB)
f1 120
f2 125
可选的，基站在确定该第一载波和第二载波的路径损耗的差值时，也可以是基于第一载波的路径损耗和第二载波的路径损耗确定出该路径损耗的差值。具体的，基站可根据UE在第一载波的发送信号确定UE在第一载波的路径损耗，此外，基站还可根据UE上报的第二载波的RSRP值，确定UE在第二载波的路径损耗，从而基站可根据第一载波的路径损耗和第二载波的路径损耗，得到第一载波和第二载波的路径损耗的差值。可选的，基站在确定该第一载波和第二载波的路径损耗的差值时，还可基于上述的方式获得的第一载波和第二载波的路径损耗的差值，综合调整得到第一载波和第二载波的路径损耗的差值，比如将两者的差值的平均值作为确定出的第一载波和第二载波的路径损耗的差值。
302、基站在第二载波向UE发送用于指示该路径损耗的差值的第一信息。
303、UE在第二载波接收该第一信息，并获取该路径损耗的差值。
具体的，基站可在第二载波上发送第一信息，该第一信息用于指示该第一载波和第二载波的路径损耗的差值。UE可在第二载波接收该第一信息，从而获取得到该第一载波和第二载波的路径损耗的差值。
可选的，该第一信息可以为系统消息、RRC信令、DCI信息等等，具体可参照上述实施例的相关描述，此处不赘述。
304、基站在第二载波发送参考信号。
305、UE在第二载波接收该参考信号，测量得到该参考信号的接收功率，并基于该参考信号的发送功率和接收功率，确定该第二载波的路径损耗。
具体的，基站还可在第二载波发送参考信号，UE在该第二载波接收基站在第二载波发送的参考信号，并获取得到该参考信号的发送功率(该发送功率可由基站通知UE)，以及 测量得到该参考信号的接收功率，从而UE能够基于第二载波上该参考信号的发送功率和该参考信号的接收功率，得到第二载波的路径损耗，比如该参考信号的发送功率与该参考信号的接收功率的差值作为该第二载波的路径损耗。
在其他可选的实施例中，该第二载波的路径损耗还可以是基站通知给UE的，比如通过该第一信息指示该第二载波的路径损耗，此处不赘述。
306、UE根据第一载波的路径损耗和第二载波的路径损耗的差值，确定第一载波的路径损耗。
307、UE基于该第一载波的路径损耗，在第一载波上发送上行信号。
具体的，UE在获取得到该第二载波的路径损耗之后，即可根据第一载波和第二载波的路径损耗的差值以及该第二载波的路径损耗，确定出该第一载波的路径损耗。进一步的，在确定出第一载波的路径损耗之后，UE即可根据该路径损耗，确定出在第一载波的发送功率，从而UE可以该确定出的发送功率在第一载波进行上行传输，如发送上行数据或者发送上行参考信号等等。基站在第一载波接收UE根据该第一载波的路径损耗发送的上行信号，从而实现基站与UE之间在第一载波的上行传输。
在本发明实施例中，基站通过确定第一载波和第二载波的路径损耗的差值并发送给UE，使得UE能够通过确定出第二载波的路径损耗，并基于该差值和该第二载波的路径损耗确定出该第一载波的路径损耗，以基于该第一载波的路径损耗确定出上行信号的发送功率实现上行传输，这就解决了载波频率相差较大而导致的上行信号无法发送的问题，并能够实现不同通信系统间的载波共享。
请参见图6，图6是本发明实施例的又一种通信方法的交互示意图。具体的，如图6所示，本发明实施例的所述通信方法可包括以下步骤：
401、UE确定第一载波和第二载波的路径损耗的差值。
可选的，UE可确定出功率参数，该功率参数包括功率调整参数，该功率调整参数为第一载波和第二载波的路径损耗的路径损耗的差值。也即，该路径损耗的差值还可以由UE确定出。
可选的，UE在确定该第一载波和第二载波的路径损耗的差值时，可以是基于第一载波和第二载波的载频确定出该路径损耗的差值，也可以是基于该第一载波的载频、第二载波的载频以及预存的对应关系确定出该路径损耗的差值，也可以是基于第一载波的路径损耗和第二载波的路径损耗确定出该路径损耗的差值的。该UE确定该路径损耗的差值的方式与基站确定路径损耗的差值类似，此处不赘述。
402、基站在第二载波发送参考信号。
403、UE在第二载波接收该参考信号，测量得到该参考信号的接收功率，并基于该参考信号的发送功率和接收功率，确定该第二载波的路径损耗。
具体的，UE获取得到第二载波的路径损耗的方式可参照上述实施例的相关描述，此处不赘述。
404、UE根据第一载波的路径损耗和第二载波的路径损耗的差值，确定第一载波的路径损耗。
405、UE基于该第一载波的路径损耗，在第一载波上发送上行信号。
具体的，UE在获取得到该第二载波的路径损耗之后，即可根据第一载波和第二载波的路径损耗的差值以及该第二载波的路径损耗，确定出该第一载波的路径损耗。进一步的，在确定出第一载波的路径损耗之后，UE即可根据该路径损耗，确定出在第一载波的发送功率，从而UE可以该确定出的发送功率在第一载波发送上行信号。基站在第一载波接收UE根据该第一载波的路径损耗发送的上行信号，从而实现基站与UE之间在第一载波的上行传输。
在本发明实施例中，可通过UE确定第一载波和第二载波的路径损耗的差值，从而UE能够基于该差值和获取的第二载波的路径损耗，确定出该第一载波的路径损耗，以基于该第一载波的路径损耗确定出上行信号的发送功率实现上行传输，这就解决了载波频率相差较大而导致的上行信号无法发送的问题，并能够实现不同通信系统间的载波共享。
请参见图7，图7是本发明实施例的又一种通信方法的交互示意图。具体的，如图7所示，本发明实施例的所述通信方法可包括以下步骤：
501、基站在第二载波发送参考信号。
502、UE在第二载波接收该参考信号，测量得到该参考信号的接收功率，并基于该参考信号的发送功率和接收功率，确定该第二载波的路径损耗。
具体的，基站可在第二载波发送参考信号，UE在该第二载波接收基站在第二载波发送的参考信号，并获取得到该参考信号的发送功率(该发送功率可由基站通知UE)，以及测量得到该参考信号的接收功率，从而UE能够基于第二载波上该参考信号的发送功率和该参考信号的接收功率，得到第二载波的路径损耗。
503、UE根据该第二载波的路径损耗，在第一载波发送上行信号。
具体的，UE确定出第二载波的路径损耗之后，即可基于该第二载波的路径损耗确定发送功率，并将该确定出的发送功率作为第一载波的发送功率，从而在第一载波以确定出的发送功率发送上行信号。
可选的，基站还可预先配置一个初始的路径损耗补偿因子，并将该路径损耗补偿因子通知给UE，比如在第二载波向UE发送该路径损耗补偿因子。从而UE可根据基站配置的路径损耗补偿因子，以及该第二载波的路径损耗，确定第一载波的发送功率，具体可将该路径损耗补偿因子带入上行功率控制公式中，基于该第二载波的路径损耗以及该路径损耗补偿因子确定出对应的发送功率，从而UE可在第一载波以该发送功率发送上行信号。
504、基站在第一载波接收该上行信号，测量得到该上行信号的接收功率，并基于该接收功率，确定包括用于调整路径损耗补偿因子的参数的功率调整参数。
具体的，基站可确定出功率参数，该功率参数可以为功率调整参数，该功率调整参数可包括用于调整路径损耗补偿因子的参数。
可选的，基站在确定用于调整路径损耗补偿因子的参数时，可将测量得到的该上行信号的接收功率与UE的目标接收功率比较，从而判断该配置的路径损耗补偿因子是偏大还是偏小，并生成用于调整该路径损耗补偿因子的参数。例如，假设测量得到UE在第一载波发送的上行信号的接收功率大于该目标接收功率，则降低该路径损耗补偿因子的值，即该生成的用于调整该路径损耗补偿因子的参数用于指示降低该路径损耗补偿因子的值；反之则可提高该路径损耗补偿因子的值。其中，该用于调整路径损耗补偿因子的参数可以为 调整后的路径损耗补偿因子，或者，也可以为调整前的路径损耗补偿因子与调整后的路径损耗补偿因子的差值。该UE的目标接收功率可以预先配置得到。
505、基站在第二载波向UE发送第一信息。
其中，该第一信息用于指示功率调整参数，该功率参数包括用于调整路径损耗补偿因子的参数。
506、UE在第二载波接收该第一信息，以获取该用于调整路径损耗补偿因子的参数，并根据该用于调整路径损耗补偿因子的参数，确定调整后的路径损耗补偿因子。
具体的，UE可在第二载波接收该第一信息，从而获取得到该功率调整参数包括的用于调整路径损耗补偿因子的参数，以基于该用于调整路径损耗补偿因子的参数，确定出调整后的路径损耗补偿因子。
可选的，当该用于调整路径损耗补偿因子的参数为调整后的路径损耗补偿因子时，UE可直接获取得到调整后的路径损耗补偿因子；当该用于调整路径损耗补偿因子的参数为调整前的路径损耗补偿因子与调整后的路径损耗补偿因子的差值时，UE可根据该差值和调整前的路径损耗补偿因子，确定出该调整后的路径损耗补偿因子，如将该调整前的路径损耗补偿因子与该差值的和作为该调整后的路径损耗补偿因子。其中，该差值可以为正，也可以为负，比如基站确定当前的路径损耗补偿因子偏大时，该差值为负；反之，当前的路径损耗补偿因子偏小时，该差值为正。
507、UE根据调整后的路径损耗补偿因子以及第二载波的路径损耗，在第一载波上发送上行信号。
具体的，UE在获取得到第二载波的路径损耗以及确定出调整后的路径损耗补偿因子之后，即可将该路径损耗补偿因子带入上行功率控制公式中，基于该第二载波的路径损耗以及该路径损耗补偿因子确定出对应的发送功率，将该发送功率作为第一载波的发送功率，从而UE可按照该补偿后的发送功率在第一载波进行上行传输，如发送上行数据或者发送上行参考信号等等。进一步可选的，UE和基站可重复该基于用于调整路径损耗补偿因子的参数调整法发送功率的过程，直到基站测量得到上行信号的接收功率与该UE的目标接收功率相同或者相差在预设阈值范围内，以实现对第一载波的发送功率的修正。基站在第一载波接收UE根据调整后的路径损耗补偿因子以及第二载波的路径损耗发送的上行信号，从而实现基站与UE之间在第一载波的上行传输。
在本发明实施例中，UE可通过确定第二载波的路径损耗，并根据该第二载波的路径损耗在第一载波发送上行信号，使得基站能够基于测量得到的该上行信号的接收功率，确定用于调整路径损耗补偿因子的参数，从而UE可根据该用于调整路径损耗补偿因子的参数确定调整后的路径损耗补偿因子，进而根据调整后的路径损耗补偿因子以及第二载波的路径损耗确定出上行信号的发送功率在第一载波进行发送，这就提升了确定出的第一载波的发送功率的准确性和可靠性，解决了载波频率相差较大而导致的上行信号无法发送的问题，并能够实现不同通信系统间的载波共享。
请参见图8，图8是本发明实施例的又一种通信方法的交互示意图。具体的，如图8所示，本发明实施例的所述通信方法可包括以下步骤：
601、基站确定参考信号的参数。
具体的，该参考信号承载在第三载波上由基站发送给UE，该参考信号用于确定第一载波的路径损耗。也即，该参考信号的参数可包括用于指示UE确定第一载波路径损耗的参考信号的参数，该参数用于指示UE在第三载波接收参考信号。其中，该第一载波可以为采用第一RAT和采用第二RAT的上行FDD载波，该第三载波可以为采用第二RAT的下行FDD载波，该第二载波可以为采用第一RAT的载波。例如，该第一载波可以为5G NR和LTE共用的上行FDD载波，该第三载波可以为与第一载波成对的LTE下行FDD载波，该第二载波可以为5G NR的载波。该参考信号可以为基站在第三载波发送的LTE系统的CRS。
602、基站在第二载波向UE发送用于指示该参考信号的参数的第一信息。
其中，该参考信号的参数可包括小区ID、CRS发送功率、CRS的端口数、CRS的时频位置信息、CRS的序列等参数中的至少一个。比如，该参考信号的参数可以为LTE CRS port0的参数。
603、UE在第二载波接收该第一信息，以获取该参考信号的参数，并根据该参考信号的参数在第三载波接收参考信号。
604、UE测量得到该参考信号的接收功率，并根据该参考信号的接收功率和该参考信号的发送功率，确定第三载波的路径损耗。
具体的，UE可在第二载波接收该第一信息，以获取该参考信号的参数，从而UE可根据该参考信号的参数在第三载波接收参考信号，比如接收LTE port0的CRS，并测量该CRS的接收功率。从而UE能够根据该CRS的接收功率和该CRS的发送功率，确定出该第三载波的路径损耗。其中，该CRS的发送功率可以由基站通知给UE，比如在该CRS中携带该发送功率。
605、UE根据第三载波的路径损耗，在第一载波发送上行信号。
具体的，UE在获取得到第三载波的路径损耗之后，即可根据该路径损耗，并可进一步结合上行功率控制公式，确定出该第三载波的路径损耗对应的发送功率，并将该发送功率作为第一载波的发送功率，从而UE可按照该确定出的发送功率在第一载波进行上行传输，如发送上行数据或者发送上行参考信号等等。基站在第一载波接收UE根据第三载波的路径损耗发送的上行信号，从而实现基站与UE之间在第一载波的上行传输。
在本发明实施例中，基站通过确定参考信号的参数，并在第二载波发送用于指示该参考信号的参数的第一信息，使得UE能够根据该参考信号的参数在第三载波接收参考信号，以及测量得到该参考信号的接收功率，从而根据该参考信号的接收功率和该参考信号的发送功率，确定出第三载波的路径损耗，并将该第三载波的路径损耗作为该第一载波的路径损耗，从而能够基于第三载波的路径损耗确定出上行信号的发送功率以实现第一载波的上行传输，这就解决了载波频率相差较大而导致的上行信号无法发送的问题，并能够实现不同通信系统间的载波共享。
请参见图9，图9是本发明实施例的一种接入网设备的结构示意图。具体的，如图9所示，本发明实施例的所述接入网设备可包括确定模块11和通信模块12。其中，
所述确定模块11，用于确定功率参数，其中，所述功率参数包括终端在第一载波上的发送功率和功率调整参数中的至少一个，所述第一载波为上行载波；
所述通信模块12，用于接收所述终端基于所述功率参数发送的上行信号。
可选的，所述通信模块12，还可用于向所述终端发送第一信息，所述第一信息用于指示所述功率参数。
可选的，所述功率参数包括所述终端在所述第一载波上的初始发送功率，所述第一信息用于指示所述初始发送功率。
可选的，所述通信模块12，还可用于接收所述终端用所述初始发送功率发送的参考信号；
所述确定模块11，还用于通过测量获得所述参考信号的接收功率；以及
所述通信模块12，还用于向所述终端发送第二信息，所述第二信息用于指示所述接收功率或者指示通过所述接收功率获得的路径损耗。
可选的，所述初始发送功率为所述终端向所述接入网设备发送随机接入前导的初始发送功率，所述功率参数还包括所述功率调整参数，所述功率调整参数用于指示功率累加值的信息，所述功率累加值用于调整所述终端向所述接入网设备发送所述随机接入前导的发送功率。
可选的，所述确定模块11可具体用于：
确定所述第一载波和第二载波的路径损耗的差值，其中，所述第二载波为承载所述第一信息的载波，所述功率参数包括所述功率调整参数，所述功率调整参数为所述路径损耗的差值。
可选的，所述确定模块11在执行确定所述第一载波和第二载波的路径损耗的差值时，可具体用于：
基于所述第一载波的载频和第二载波的载频，确定所述第一载波和所述第二载波的路径损耗的差值；或者，
基于所述第一载波的载频、第二载波的载频以及预存的对应关系确定所述第一载波和所述第二载波的路径损耗的差值，其中，所述预存的对应关系包括所述第一载波的载频、所述第二载波的载频以及所述第一载波和第二载波的路径损耗的差值的对应关系，或者所述预存的对应关系包括所述第一载波的载频与所述第二载波的载频的商值，以及所述第一载波和所述第二载波的路径损耗的差值的对应关系。
可选的，所述第一载波和所述第二载波的路径损耗的差值满足如下公式：
20log10(fc1)-20log10(fc2)；或者，20log(fc1/fc2)；
其中，fc1表示所述第一载波的载频和所述第二载波的载频中的一个，fc2表示所述第一载波的载频和所述第二载波的载频中的另一个。
可选的，所述通信模块12，还可用于接收所述终端发送的上行信号；
所述确定模块11，还可用于基于所述上行信号的接收功率确定用于调整路径损耗补偿因子的参数，其中，所述功率参数为所述功率调整参数，所述功率调整参数包括所述用于调整路径损耗补偿因子的参数。
可选的，该接入网设备可通过上述模块实现上述图3至图8对应实施例中的通信方法的部分或全部步骤。应理解，本发明实施例是对应方法实施例的装置实施例，对方法实施例的描述，也适用于本发明实施例。
请参见图10，图10是本发明实施例的一种终端的结构示意图。具体的，如图10所示，本发明实施例的所述终端可包括确定模块21和通信模块22。其中，
所述确定模块21，用于确定功率参数，所述功率参数包括终端在第一载波上的发送功率和功率调整参数中的至少一个，所述第一载波为上行载波；
所述通信模块22，用于基于所述功率参数在所述第一载波发送上行信号。
可选的，所述通信模块22，还可用于接收接入网设备发送的第一信息，所述第一信息用于指示所述功率参数。
可选的，所述功率参数包括所述终端在所述第一载波上的初始发送功率，所述第一信息用于指示所述初始发送功率。
可选的，所述通信模块22可具体用于：
基于所述初始发送功率向所述接入网设备发送参考信号；
接收所述接入网设备发送的第二信息，所述第二信息用于指示所述接入网设备基于所述参考信号获得的接收功率或者用于指示通过所述接收功率获得的路径损耗；
基于所述接收功率或者所述路径损耗在所述第一载波发送上行信号。
可选的，所述第二信息用于指示所述接入网设备基于所述参考信号获得的接收功率；所述确定模块21，还可用于基于所述参考信号的接收功率以及所述初始发送功率，确定出所述第一载波的路径损耗；
所述通信模块22，还用于基于确定出的所述路径损耗在所述第一载波发送上行信号。
可选的，所述功率参数还包括所述功率调整参数，所述功率调整参数用于指示功率累加值的信息；所述通信模块22可具体用于：
基于所述初始发送功率向所述接入网设备发送随机接入前导；
若随机接入失败，基于所述功率累加值调整发送所述随机接入前导的发送功率，并以调整后的发送功率发送所述随机接入前导，直到随机接入成功；
当随机接入成功时，基于随机接入成功时的发送功率在所述第一载波发送上行信号。
可选的，所述确定模块21，还可用于获取第二载波的路径损耗；其中，所述第二载波为承载所述第一信息的载波，且所述功率参数包括所述功率调整参数，所述功率调整参数包括所述第一载波和第二载波的路径损耗的差值；
所述通信模块22可具体用于：
基于所述第二载波的路径损耗和所述差值确定发送功率，并基于确定出的发送功率在所述第一载波发送上行信号。
可选的，所述功率参数可包括所述功率调整参数，所述功率调整参数为所述第一载波和第二载波的路径损耗的差值；所述确定模块21可具体用于：
基于所述第一载波的载频和第二载波的载频，确定所述第一载波和所述第二载波的路径损耗的差值；或者，
基于所述第一载波的载频、第二载波的载频以及预存的对应关系确定所述第一载波和所述第二载波的路径损耗的差值，其中，所述预存的对应关系包括所述第一载波的载频、所述第二载波的载频以及所述第一载波和第二载波的路径损耗的差值的对应关系，或者所述预存的对应关系包括所述第一载波的载频与所述第二载波的载频的商值，以及所述第一 载波和所述第二载波的路径损耗的差值的对应关系。
可选的，所述第一载波和所述第二载波的路径损耗的差值满足如下公式：
20log10(fc1)-20log10(fc2)；或者，20log(fc1/fc2)；
其中，fc1表示所述第一载波的载频和所述第二载波的载频中的一个，fc2表示所述第一载波的载频和所述第二载波的载频中的另一个。
可选的，所述确定模块21，还用于获取第二载波的路径损耗，并基于所述第二载波的路径损耗确定发送功率；其中，所述第二载波为承载所述第一信息的载波；
所述通信模块22，还用于基于确定出的发送功率在所述第一载波发送上行信号；其中，所述功率参数为所述功率调整参数，所述功率调整参数包括用于调整路径损耗补偿因子的参数，所述用于调整路径损耗补偿因子的参数是所述接入网设备基于所述上行信号的接收功率确定出的；
所述通信模块22，还可用于基于所述第二载波的路径损耗和所述用于调整路径损耗补偿因子的参数调整发送功率，并基于调整后的发送功率在所述第一载波发送上行信号。
可选的，该终端可通过上述模块实现上述图3至图8对应实施例中的通信方法的部分或全部步骤。应理解，本发明实施例是对应方法实施例的装置实施例，对方法实施例的描述，也适用于本发明实施例。
请参见图11，图11是本发明实施例的一种通信系统的结构示意图。具体的，如图11所示，本发明实施例的通信系统可包括接入网设备和终端。其中，该接入网设备可参照上述图3至图8对应实施例中的基站的相关描述，该终端可参照上述图3至图8对应实施例中的UE的相关描述，此处不赘述。
请参见图12，图12是本发明实施例提供的另一种接入网设备的结构示意图。具体的，如图12所示，本发明实施例的所述接入网设备可包括：通信接口300、存储器200和处理器100，所述处理器100分别与所述通信接口300及所述存储器200连接。
所述通信接口300、存储器200以及处理器100之间可以通过总线进行数据连接，也可以通过其他方式数据连接。本实施例中以总线连接进行说明。
所述处理器100可以是中央处理器(英文：Central Processing Unit，简称CPU)，网络处理器(英文：Network Processor，简称NP)或CPU和NP的组合。
所述处理器100还可以进一步包括硬件芯片。上述硬件芯片可以是专用集成电路(英文：Application-Specific Integrated Circuit，简称ASIC)，可编程逻辑器件(英文：Programmable Logic Device，简称PLD)或其组合。上述PLD可以是复杂可编程逻辑器件(英文：Complex Programmable Logic Device，简称CPLD)，现场可编程逻辑门阵列(英文：Field-Programmable Gate Array，简称FPGA)，通用阵列逻辑(英文：Generic Array Logic，简称GAL)或其任意组合。
所述存储器200可以包括易失性存储器(英文：Volatile Memory)，例如随机存取存储器(英文：Random-Access Memory，简称RAM)；存储器也可以包括非易失性存储器(英文：non-volatile memory)，例如快闪存储器(英文：flash memory)，硬盘(英文：Hard Disk Drive，简称HDD)或固态硬盘(英文：Solid-State Drive，简称SSD)；存储器200还可以包括上述种类的存储器的组合。
可选的，存储器200可以用于存储程序指令，该处理器100调用该存储器200中存储的程序指令，可以执行图3至图8所示实施例中的一个或多个步骤，或其中可选的实施方式，使得该接入网设备实现上述方法中的功能。
请参见图13，图13是本发明实施例提供的另一种终端的结构示意图。具体的，如图13所示，本发明实施例的终端可包括：通信接口600、存储器500和处理器400，该处理器400分别与通信接口600及存储器500连接。
所述通信接口600、存储器500以及处理器400之间可以通过总线进行数据连接，也可以通过其他方式数据连接。本实施例中以总线连接进行说明。
所述处理器400可以是CPU，NP或CPU和NP的组合。
所述处理器400还可以进一步包括硬件芯片。上述硬件芯片可以是ASIC，PLD或其组合。上述PLD可以是CPLD，FPGA，GAL或其任意组合。
所述存储器500可以包括易失性存储器(英文：Volatile Memory)，例如RAM；存储器也可以包括非易失性存储器(英文：non-volatile memory)，例如快闪存储器(英文：flash memory)，HDD或SSD；存储器500还可以包括上述种类的存储器的组合。
可选的，存储器500可以用于存储程序指令，该处理器400调用该存储器500中存储的程序指令，可以执行图3至图8所示实施例中的一个或多个步骤，或其中可选的实施方式，使得该终端实现上述方法中的功能。
在本发明所提供的几个实施例中，应该理解到，所揭露的装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述模块的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个模块或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或模块的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述该作为分离部件说明的模块可以是或者也可以不是物理上分开的，作为模块显示的部件可以是或者也可以不是物理模块，即可以位于一个地方，或者也可以分布到多个网络模块上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。
另外，在本发明各个实施例中的各功能模块可以集成在一个处理模块中，也可以是各个模块单独物理存在，也可以两个或两个以上模块集成在一个模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用硬件加软件功能模块的形式实现。
上述以软件功能模块的形式实现的集成的模块，可以存储在一个计算机可读取存储介质中。上述软件功能模块存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)或处理器(processor)执行本发明各个实施例所述方法的部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(英文：Read-Only Memory，简称ROM)、随机存取存储器(英文：Random Access Memory，简称RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (44)

  1. 一种通信方法，其特征在于，包括：
    接入网设备确定功率参数，其中，所述功率参数包括终端在第一载波上的发送功率和功率调整参数中的至少一个，所述第一载波为上行载波；
    所述接入网设备接收所述终端基于所述功率参数发送的上行信号。
  2. 根据权利要求1所述的方法，其特征在于，所述接入网设备确定功率参数之后，还包括：
    所述接入网设备向所述终端发送第一信息，所述第一信息用于指示所述功率参数。
  3. 根据权利要求2所述的方法，其特征在于，
    所述功率参数包括所述终端在所述第一载波上的初始发送功率，所述第一信息用于指示所述初始发送功率。
  4. 根据权利要求3所述的方法，其特征在于，所述接入网设备向所述终端发送第一信息之后，还包括：
    所述接入网设备接收所述终端用所述初始发送功率发送的参考信号；
    所述接入网设备通过测量获得所述参考信号的接收功率；以及
    所述接入网设备向所述终端发送第二信息，所述第二信息用于指示所述接收功率或者指示通过所述接收功率获得的路径损耗。
  5. 根据权利要求3所述的方法，其特征在于，
    所述初始发送功率为所述终端向所述接入网设备发送随机接入前导的初始发送功率，所述功率参数还包括所述功率调整参数，所述功率调整参数用于指示功率累加值的信息，所述功率累加值用于调整所述终端向所述接入网设备发送所述随机接入前导的发送功率。
  6. 根据权利要求1或2所述的方法，其特征在于，所述接入网设备确定功率参数，包括：
    所述接入网设备确定所述第一载波和第二载波的路径损耗的差值，其中，所述第二载波为承载所述第一信息的载波，所述功率参数包括所述功率调整参数，所述功率调整参数为所述路径损耗的差值。
  7. 根据权利要求6所述的方法，其特征在于，所述接入网设备确定所述第一载波和第二载波的路径损耗的差值，包括：
    所述接入网设备基于所述第一载波的载频和第二载波的载频，确定所述第一载波和所述第二载波的路径损耗的差值；或者，
    所述接入网设备基于所述第一载波的载频、第二载波的载频以及预存的对应关系确定所述第一载波和所述第二载波的路径损耗的差值，其中，所述预存的对应关系包括所述第一载波的载频、所述第二载波的载频以及所述第一载波和第二载波的路径损耗的差值的对应关系，或者所述预存的对应关系包括所述第一载波的载频与所述第二载波的载频的商值，以及所述第一载波和所述第二载波的路径损耗的差值的对应关系。
  8. 根据权利要求7所述的方法，其特征在于，所述第一载波和所述第二载波的路径损耗的差值满足如下公式：
    20log10(fc1)-20log10(fc2)；或者
    20log(fc1/fc2)；
    其中，fc1表示所述第一载波的载频和所述第二载波的载频中的一个，fc2表示所述第一载波的载频和所述第二载波的载频中的另一个。
  9. 根据权利要求2所述的方法，其特征在于，所述接入网设备确定功率参数，包括：
    所述接入网设备接收所述终端发送的上行信号；
    所述接入网设备基于所述上行信号的接收功率确定用于调整路径损耗补偿因子的参数，其中，所述功率参数为所述功率调整参数，所述功率调整参数包括所述用于调整路径损耗补偿因子的参数。
  10. 一种通信方法，其特征在于，包括：
    终端确定功率参数，所述功率参数包括终端在第一载波上的发送功率和功率调整参数中的至少一个，所述第一载波为上行载波；
    所述终端基于所述功率参数在所述第一载波发送上行信号。
  11. 根据权利要求10所述的方法，其特征在于，所述终端确定功率参数，包括：
    终端接收接入网设备发送的第一信息，所述第一信息用于指示所述功率参数。
  12. 根据权利要求11所述的方法，其特征在于，
    所述功率参数包括所述终端在所述第一载波上的初始发送功率，所述第一信息用于指示所述初始发送功率。
  13. 根据权利要求12所述的方法，其特征在于，所述终端基于所述功率参数在所述第一载波发送上行信号，包括：
    所述终端基于所述初始发送功率向所述接入网设备发送参考信号；
    所述终端接收所述接入网设备发送的第二信息，所述第二信息用于指示所述接入网设备基于所述参考信号获得的接收功率或者用于指示通过所述接收功率获得的路径损耗；
    所述终端基于所述接收功率或者所述路径损耗在所述第一载波发送上行信号。
  14. 根据权利要求13所述的方法，其特征在于，所述第二信息用于指示所述接入网设备基于所述参考信号获得的接收功率；
    所述终端基于所述接收功率在所述第一载波发送上行信号，包括：
    所述终端基于所述参考信号的接收功率以及所述初始发送功率，确定出所述第一载波的路径损耗；
    所述终端基于确定出的所述路径损耗在所述第一载波发送上行信号。
  15. 根据权利要求12所述的方法，其特征在于，
    所述功率参数还包括所述功率调整参数，所述功率调整参数用于指示功率累加值的信息；
    所述终端基于所述功率参数在所述第一载波发送上行信号，包括：
    所述终端基于所述初始发送功率向所述接入网设备发送随机接入前导；
    若随机接入失败，所述终端基于所述功率累加值调整发送所述随机接入前导的发送功率，并以调整后的发送功率发送所述随机接入前导，直到随机接入成功；
    当随机接入成功时，所述终端基于随机接入成功时的发送功率在所述第一载波发送上 行信号。
  16. 根据权利要求11所述的方法，其特征在于，所述方法还包括：
    所述终端获取第二载波的路径损耗；其中，所述第二载波为承载所述第一信息的载波，且所述功率参数包括所述功率调整参数，所述功率调整参数包括所述第一载波和第二载波的路径损耗的差值；
    所述终端基于所述功率参数在所述第一载波发送上行信号，包括：
    所述终端基于所述第二载波的路径损耗和所述差值确定发送功率，并基于确定出的发送功率在所述第一载波发送上行信号。
  17. 根据权利要求10所述的方法，其特征在于，所述功率参数包括所述功率调整参数，所述功率调整参数为所述第一载波和第二载波的路径损耗的差值；所述终端确定功率参数，包括：
    所述终端基于所述第一载波的载频和第二载波的载频，确定所述第一载波和所述第二载波的路径损耗的差值；或者，
    所述终端基于所述第一载波的载频、第二载波的载频以及预存的对应关系确定所述第一载波和所述第二载波的路径损耗的差值，其中，所述预存的对应关系包括所述第一载波的载频、所述第二载波的载频以及所述第一载波和第二载波的路径损耗的差值的对应关系，或者所述预存的对应关系包括所述第一载波的载频与所述第二载波的载频的商值，以及所述第一载波和所述第二载波的路径损耗的差值的对应关系。
  18. 根据权利要求17所述的方法，其特征在于，所述第一载波和所述第二载波的路径损耗的差值满足如下公式：
    20log10(fc1)-20log10(fc2)；或者，
    20log(fc1/fc2)；
    其中，fc1表示所述第一载波的载频和所述第二载波的载频中的一个，fc2表示所述第一载波的载频和所述第二载波的载频中的另一个。
  19. 根据权利要求11所述的方法，其特征在于，所述方法还包括：
    所述终端获取第二载波的路径损耗；其中，所述第二载波为承载所述第一信息的载波；
    所述终端基于所述第二载波的路径损耗确定发送功率，并基于确定出的发送功率在所述第一载波发送上行信号；
    其中，所述功率参数为所述功率调整参数，所述功率调整参数包括用于调整路径损耗补偿因子的参数，所述用于调整路径损耗补偿因子的参数是所述接入网设备基于所述上行信号的接收功率确定出的；
    所述终端基于所述功率参数在所述第一载波发送上行信号，包括：
    所述终端基于所述第二载波的路径损耗和所述用于调整路径损耗补偿因子的参数调整发送功率，并基于调整后的发送功率在所述第一载波发送上行信号。
  20. 一种接入网设备，其特征在于，包括：
    确定模块，用于确定功率参数，其中，所述功率参数包括终端在第一载波上的发送功率和功率调整参数中的至少一个，所述第一载波为上行载波；
    通信模块，用于接收所述终端基于所述功率参数发送的上行信号。
  21. 根据权利要求20所述的接入网设备，其特征在于，
    所述通信模块，还用于向所述终端发送第一信息，所述第一信息用于指示所述功率参数。
  22. 根据权利要求21所述的接入网设备，其特征在于，
    所述功率参数包括所述终端在所述第一载波上的初始发送功率，所述第一信息用于指示所述初始发送功率。
  23. 根据权利要求22所述的接入网设备，其特征在于，
    所述通信模块，还用于接收所述终端用所述初始发送功率发送的参考信号；
    所述确定模块，还用于通过测量获得所述参考信号的接收功率；以及
    所述通信模块，还用于向所述终端发送第二信息，所述第二信息用于指示所述接收功率或者指示通过所述接收功率获得的路径损耗。
  24. 根据权利要求22所述的接入网设备，其特征在于，
    所述初始发送功率为所述终端向所述接入网设备发送随机接入前导的初始发送功率，所述功率参数还包括所述功率调整参数，所述功率调整参数用于指示功率累加值的信息，所述功率累加值用于调整所述终端向所述接入网设备发送所述随机接入前导的发送功率。
  25. 根据权利要求20或21所述的接入网设备，其特征在于，所述确定模块具体用于：
    确定所述第一载波和第二载波的路径损耗的差值，其中，所述第二载波为承载所述第一信息的载波，所述功率参数包括所述功率调整参数，所述功率调整参数为所述路径损耗的差值。
  26. 根据权利要求25所述的接入网设备，其特征在于，所述确定模块执行确定所述第一载波和第二载波的路径损耗的差值时，具体用于：
    基于所述第一载波的载频和第二载波的载频，确定所述第一载波和所述第二载波的路径损耗的差值；或者，
    基于所述第一载波的载频、第二载波的载频以及预存的对应关系确定所述第一载波和所述第二载波的路径损耗的差值，其中，所述预存的对应关系包括所述第一载波的载频、所述第二载波的载频以及所述第一载波和第二载波的路径损耗的差值的对应关系，或者所述预存的对应关系包括所述第一载波的载频与所述第二载波的载频的商值，以及所述第一载波和所述第二载波的路径损耗的差值的对应关系。
  27. 根据权利要求26所述的接入网设备，其特征在于，所述第一载波和所述第二载波的路径损耗的差值满足如下公式：
    20log10(fc1)-20log10(fc2)；或者
    20log(fc1/fc2)；
    其中，fc1表示所述第一载波的载频和所述第二载波的载频中的一个，fc2表示所述第一载波的载频和所述第二载波的载频中的另一个。
  28. 根据权利要求21所述的接入网设备，其特征在于，
    所述通信模块，还用于接收所述终端发送的上行信号；
    所述确定模块，还用于基于所述上行信号的接收功率确定用于调整路径损耗补偿因子的参数，其中，所述功率参数为所述功率调整参数，所述功率调整参数包括所述用于调整 路径损耗补偿因子的参数。
  29. 一种终端，其特征在于，包括：
    确定模块，用于确定功率参数，所述功率参数包括终端在第一载波上的发送功率和功率调整参数中的至少一个，所述第一载波为上行载波；
    通信模块，用于基于所述功率参数在所述第一载波发送上行信号。
  30. 根据权利要求29所述的终端，其特征在于，
    所述通信模块，还用于接收接入网设备发送的第一信息，所述第一信息用于指示所述功率参数。
  31. 根据权利要求30所述的终端，其特征在于，
    所述功率参数包括所述终端在所述第一载波上的初始发送功率，所述第一信息用于指示所述初始发送功率。
  32. 根据权利要求31所述的终端，其特征在于，所述通信模块具体用于：
    基于所述初始发送功率向所述接入网设备发送参考信号；
    接收所述接入网设备发送的第二信息，所述第二信息用于指示所述接入网设备基于所述参考信号获得的接收功率或者用于指示通过所述接收功率获得的路径损耗；
    基于所述接收功率或者所述路径损耗在所述第一载波发送上行信号。
  33. 根据权利要求32所述的终端，其特征在于，所述第二信息用于指示所述接入网设备基于所述参考信号获得的接收功率；
    所述确定模块，还用于基于所述参考信号的接收功率以及所述初始发送功率，确定出所述第一载波的路径损耗；
    所述通信模块，还用于基于确定出的所述路径损耗在所述第一载波发送上行信号。
  34. 根据权利要求31所述的终端，其特征在于，
    所述功率参数还包括所述功率调整参数，所述功率调整参数用于指示功率累加值的信息；
    所述通信模块具体用于：
    基于所述初始发送功率向所述接入网设备发送随机接入前导；
    若随机接入失败，基于所述功率累加值调整发送所述随机接入前导的发送功率，并以调整后的发送功率发送所述随机接入前导，直到随机接入成功；
    当随机接入成功时，基于随机接入成功时的发送功率在所述第一载波发送上行信号。
  35. 根据权利要求30所述的终端，其特征在于，
    所述确定模块，还用于获取第二载波的路径损耗；其中，所述第二载波为承载所述第一信息的载波，且所述功率参数包括所述功率调整参数，所述功率调整参数包括所述第一载波和第二载波的路径损耗的差值；
    所述通信模块具体用于：
    基于所述第二载波的路径损耗和所述差值确定发送功率，并基于确定出的发送功率在所述第一载波发送上行信号。
  36. 根据权利要求29所述的终端，其特征在于，所述功率参数包括所述功率调整参数，所述功率调整参数为所述第一载波和第二载波的路径损耗的差值；所述确定模块具体用于：
    基于所述第一载波的载频和第二载波的载频，确定所述第一载波和所述第二载波的路径损耗的差值；或者，
    基于所述第一载波的载频、第二载波的载频以及预存的对应关系确定所述第一载波和所述第二载波的路径损耗的差值，其中，所述预存的对应关系包括所述第一载波的载频、所述第二载波的载频以及所述第一载波和第二载波的路径损耗的差值的对应关系，或者所述预存的对应关系包括所述第一载波的载频与所述第二载波的载频的商值，以及所述第一载波和所述第二载波的路径损耗的差值的对应关系。
  37. 根据权利要求36所述的终端，其特征在于，所述第一载波和所述第二载波的路径损耗的差值满足如下公式：
    20log10(fc1)-20log10(fc2)；或者，
    20log(fc1/fc2)；
    其中，fc1表示所述第一载波的载频和所述第二载波的载频中的一个，fc2表示所述第一载波的载频和所述第二载波的载频中的另一个。
  38. 根据权利要求30所述的终端，其特征在于，
    所述确定模块，还用于获取第二载波的路径损耗，并基于所述第二载波的路径损耗确定发送功率；其中，所述第二载波为承载所述第一信息的载波；
    所述通信模块，还用于基于确定出的发送功率在所述第一载波发送上行信号；其中，所述功率参数为所述功率调整参数，所述功率调整参数包括用于调整路径损耗补偿因子的参数，所述用于调整路径损耗补偿因子的参数是所述接入网设备基于所述上行信号的接收功率确定出的；
    所述通信模块，还用于基于所述第二载波的路径损耗和所述用于调整路径损耗补偿因子的参数调整发送功率，并基于调整后的发送功率在所述第一载波发送上行信号。
  39. 一种通信装置，其特征在于，包括：存储器和处理器，所述处理器与所述存储器连接；其中，
    所述存储器用于存储程序指令；
    所述处理器用于调用所述存储器中的程序指令执行如权利要求1-9任一项所述的方法。
  40. 一种通信装置，其特征在于，包括：存储器和处理器，所述处理器与所述存储器连接；其中，
    所述存储器用于存储程序指令；
    所述处理器用于调用所述存储器中的程序指令执行如权利要求10-19任一项所述的方法。
  41. 一种计算机存储介质，其特征在于，所述计算机存储介质存储有程序，所述程序执行时包括如权利要求1-9任一项所述的方法。
  42. 一种计算机存储介质，其特征在于，所述计算机存储介质存储有程序，所述程序执行时包括如权利要求10-19任一项所述的方法。
  43. 一种包括指令的计算机程序产品，其特征在于，当其在计算机上运行时，使得计算机执行如权利要求1-9任一项所述的方法。
  44. 一种包括指令的计算机程序产品，其特征在于，当其在计算机上运行时，使得计算机执行如权利要求10-19任一项所述的方法。
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