WO2020061961A1 - 测量信道质量的方法和装置 - Google Patents

测量信道质量的方法和装置 Download PDF

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Publication number
WO2020061961A1
WO2020061961A1 PCT/CN2018/108138 CN2018108138W WO2020061961A1 WO 2020061961 A1 WO2020061961 A1 WO 2020061961A1 CN 2018108138 W CN2018108138 W CN 2018108138W WO 2020061961 A1 WO2020061961 A1 WO 2020061961A1
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WO
WIPO (PCT)
Prior art keywords
downlink carrier
terminal device
information
downlink
channel quality
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/CN2018/108138
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English (en)
French (fr)
Inventor
罗之虎
李军
金哲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to EP18935644.7A priority Critical patent/EP3852478B1/en
Priority to PCT/CN2018/108138 priority patent/WO2020061961A1/zh
Priority to CN201880097974.2A priority patent/CN112753273B/zh
Publication of WO2020061961A1 publication Critical patent/WO2020061961A1/zh
Priority to US17/212,608 priority patent/US12058729B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/189—Transmission or retransmission of more than one copy of a message
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/005—Transmission of information for alerting of incoming communication

Definitions

  • the present application relates to the field of communications, and more particularly, to a method and apparatus for measuring channel quality.
  • Machine type communication also known as machine-to-machine (M2M), or Internet of Things (IoT)
  • MTC Machine type communication
  • M2M machine-to-machine
  • IoT Internet of Things
  • the future of the Internet of Things communication may mainly include smart meter reading, medical detection monitoring, logistics detection, industrial detection monitoring, automotive networking, smart communities, and wearable device communication.
  • the Internet of Things industry structured around MTC communications is considered to be the fourth wave after computers, the Internet, and mobile communication networks, and is the direction of future network development. It is expected that by 2022, the number of MTC equipment connections will reach 50 billion.
  • NPDCCH narrowband physical downlink shared channel
  • NPDSCH narrowband physical downlink shared channel
  • the present application provides a method for measuring channel quality, so that a network device can perform more reasonable resource scheduling.
  • a method for measuring channel quality includes: a terminal device receiving configuration information sent by a network device, the configuration information used to configure a downlink carrier set; the terminal device determining a first carrier from the downlink carrier set Downlink carrier; the terminal device sends a random access process message three Msg3 to the network device, the Msg3 includes first information, the first information includes information used to indicate channel quality of the first downlink carrier, and the channel quality It is used to provide the network device with information of a first repetition level, where the first repetition level is a minimum repetition level required when transmission by a downlink channel according to a preset transmission parameter satisfies a preset block error rate.
  • the configuration information is carried in a system message, and the system message may be SIB22-NB or other system messages.
  • the downlink carrier set may include a downlink carrier configured for the random access channel RACH or a downlink carrier used for paging configured in the SIB22-NB.
  • the downlink carrier set may include a downlink carrier configured for the random access channel RACH or a subset of the downlink carrier configured in the SIB22-NB.
  • the downlink carrier set may include a downlink carrier associated with the RACH configured in the SIB22-NB.
  • the downlink carrier set may include a downlink carrier configured by a network device for measurement.
  • the downlink carrier set may include an anchor carrier.
  • the first downlink carrier includes one or more downlink carriers in the downlink carrier set.
  • the downlink channel is a downlink control channel or a downlink data channel.
  • the downlink channel is a downlink channel that bears scheduling Msg2 or bears Msg2 or schedules Msg3 retransmission or bears Msg4.
  • the downlink channel is a downlink channel that carries data or signaling after Msg4.
  • the terminal device carries the channel quality information of one or more downlink carriers in the downlink carrier set in Msg3, and the network device may optimize the carrier on the carrier based on the channel quality of the downlink carrier. Resource allocation, which helps improve the efficiency of downlink resources.
  • the method before the terminal device sends Msg3 to the network device, the method further includes: the terminal device sends a random access process message-Msg1 to the network device; the The terminal device receives a random access process message 2 Msg2 sent by the network device.
  • the Msg3 also includes second information, and the second information includes information used to indicate channel quality of the second downlink carrier.
  • the first downlink carrier and the second downlink carrier are different downlink carriers.
  • the terminal device carries information about the channel quality of the downlink carrier carrying Msg2 in Msg3, which helps the network device to optimize the resources for scheduling the downlink channel for Msg3 retransmission and the downlink channel for Msg4. Allocation, thereby helping to improve the efficiency of downlink resources.
  • the terminal device determining the first downlink carrier from the downlink carrier set includes: the terminal device determining one or more from the downlink carrier set Carrier; the terminal device measures the channel quality of each downlink carrier in the one or more downlink carriers; the terminal device determines the first downlink carrier according to the channel quality of each downlink carrier; the first downlink carrier is One or more downlink carriers with the best channel quality among the one or more downlink carriers.
  • the terminal device reports the carrier position of the one or more downlink carriers with the best channel quality in the downlink measurement carrier set and the downlink channel quality corresponding to the carrier in Msg3. Based on this result, the network device can allocate the downlink carrier with the best channel quality to the terminal device in Msg4 to achieve frequency selective scheduling. At the same time, based on the downlink channel quality of this carrier, the resource allocation of NPDCCH and NPDSCH on this carrier can be optimized, thereby improving Downstream resource efficiency.
  • the determining, by the terminal device, a first downlink carrier from the downlink carrier set includes: the terminal device selecting from the downlink carrier set according to a preset rule Determine the first downlink carrier.
  • the terminal device determines the first downlink carrier from the downlink carrier set according to a preset rule, including: the terminal device sets the downlink carrier set The paging paging carrier in is determined to be the first downlink carrier; or, the terminal device determines the first downlink carrier from the downlink carrier set according to the identification information of the terminal device.
  • the terminal device reports the channel quality of the downlink carrier determined by the terminal device according to a preset rule, and the network device determines the load condition of each carrier according to the channel quality reported by all terminal devices, for example, according to statistical data, the downlink channel Carriers with better quality have a lighter load, and carriers with poorer downlink channel quality have a heavier load, which helps network equipment to achieve load balancing. For example, some services of a carrier with a heavy load are allocated to carriers with a lighter load.
  • the first information further includes information used to indicate a position of the first downlink carrier.
  • the determining, by the terminal device, a first downlink carrier from the downlink carrier set includes: the terminal device receiving third information sent by the network device, the The third information is used to indicate the first downlink carrier; the terminal device determines the first downlink carrier from the downlink carrier set according to the third information.
  • the third information is downlink control information DCI.
  • the DCI is a DCI corresponding to an NPDCCH order.
  • the terminal device reports the channel quality of the downlink carrier designated by the network device, and the network device determines the load condition of each carrier according to the channel quality reported by all terminal devices, for example, according to statistical data, the carrier with a better downlink channel quality
  • the load is lighter, and the carrier with poorer downlink channel quality has a heavier load, which helps network equipment to achieve load balancing. For example, some services of a carrier with a heavy load are allocated to a carrier with a lighter load.
  • the method before the terminal device sends Msg3 to the network device, the method further includes: the terminal device receives instruction information sent by the network device, the instruction information is used to indicate whether the terminal device is allowed to report a second downlink Information about the channel quality of the carrier; and / or, the indication information is used to indicate whether the terminal device is allowed to report the channel quality of the first downlink carrier; and / or, the indication information is used to indicate whether the terminal device is allowed Report the position information of the first downlink carrier.
  • the method before the terminal device sends Msg3 to the network device, the method further includes: the terminal device sends capability information of the terminal device to the network device, and the capability information is used to indicate whether the terminal device has The ability to report the channel quality information of the second downlink carrier; and / or, the indication information is used to indicate that the terminal device has the ability to report the channel quality information of the first downlink carrier; and / or, the indication information is used This is sufficient to indicate that the terminal device is capable of reporting information about the position of the first downlink carrier.
  • the first information may include information used to indicate channel quality of the first downlink carrier
  • the second information may include used to indicate channel quality of the downlink carrier where Msg2 is located relative to the first downlink carrier. Information on the deviation of the channel quality.
  • the second information may include information used to indicate channel quality of a downlink carrier where Msg2 is located
  • the first information may include information used to indicate channel quality of the first downlink carrier relative to the downlink carrier where Msg2 is located Information on deviations in channel quality.
  • a method for measuring channel quality includes: network equipment determines configuration information, the configuration information is used to configure a downlink carrier set, the downlink carrier set includes a first downlink carrier; The device sends the configuration information; the network device receives a random access process message three Msg3 sent by the terminal device, the Msg3 includes first information, the first information includes information used to indicate channel quality of the first downlink carrier, The channel quality is used to provide the network device with information of a first repetition level.
  • the first repetition level is a minimum repetition level required when a downlink channel transmits according to a preset transmission parameter and satisfies a preset block error rate.
  • the method before the network device receives the Msg3 sent by the terminal device, the method further includes: the network device receives a random access process message sent by the terminal device. Msg1; the network device sends a random access process message two Msg2 to the terminal device; wherein the Msg3 further includes second information, the second information includes information used to indicate channel quality of the second downlink carrier, and the second downlink The carrier is used to carry the Msg2, and the first downlink carrier and the second downlink carrier are different downlink carriers.
  • the first downlink carrier is one or more of the one or more carriers of the downlink carrier set, which has the best channel quality for the terminal device. Downlink carrier.
  • the method further includes: the network device sends sixth information to the terminal device, and the sixth The information is used to indicate the first downlink carrier.
  • the first downlink carrier is determined by the terminal device according to a preset rule.
  • the first information further includes information used to indicate a position of the first downlink carrier.
  • the method before the network device receives Msg3 sent by the terminal device, the method further includes: the network device sends third information to the terminal device, and the third The information is used to indicate the first downlink carrier.
  • the method further includes: the network device determines a load of the first downlink carrier according to a channel quality of the first downlink carrier ; The network device adjusts the load of the first downlink carrier.
  • the first information may include information used to indicate channel quality of the first downlink carrier
  • the second information may include used to indicate channel quality of the downlink carrier where Msg2 is located relative to the first downlink carrier.
  • Information about the deviation of the channel quality the method further includes:
  • the network device may determine the channel quality of the downlink carrier where Msg2 is located according to the deviation in the second information and the channel quality in the first information.
  • the second information may include information used to indicate channel quality of a downlink carrier where Msg2 is located
  • the first information may include information used to indicate channel quality of the first downlink carrier relative to the downlink carrier where Msg2 is located
  • Information about the deviation of the channel quality the method further includes:
  • the network device may determine the channel quality of the first downlink carrier according to the deviation in the first information and the channel quality in the second information.
  • a method for measuring channel quality includes: a terminal device receiving configuration information sent by a network device, where the configuration information is used to configure a downlink carrier set; Carrier measurements are performed to obtain the channel quality of each downlink carrier; the terminal device determines an average channel quality of the multiple downlink carriers; the terminal device sends a random access process message three Msg3 to the network device, and the Msg3 includes the multiple The average of the channel quality of the three downlink carriers.
  • a method for measuring channel quality includes: a network device sends configuration information to a terminal device, the configuration information is used to configure a downlink carrier set; and the network device receives a random access process sent by the terminal device.
  • the Msg3 includes an average of channel quality of multiple downlink carriers, and the downlink carrier set includes the multiple downlink carriers.
  • an apparatus for measuring channel quality is provided, and is configured to execute the foregoing first aspect or the third aspect, and the method in any possible implementation manner of the first aspect or the third aspect.
  • the apparatus for measuring channel quality may include a unit for executing the method in the first aspect or the third aspect, and any possible implementation manner of the first aspect or the third aspect.
  • an apparatus for measuring channel quality is provided, which is configured to perform the foregoing second aspect or the fourth aspect, and the method in any possible implementation manner of the second aspect or the fourth aspect.
  • the apparatus for measuring channel quality may include a unit for performing the method in the second aspect or the fourth aspect, and any possible implementation manner of the second aspect or the fourth aspect.
  • a device for measuring channel quality may be a terminal device designed in the foregoing method, or a chip provided in the terminal device.
  • the device includes: a processor, coupled to the memory, and can be used to execute instructions in the memory to implement the first or third aspect described above, and executed by a terminal device in any possible implementation manner of the first or third aspect.
  • the device further includes a memory.
  • the apparatus further includes a communication interface, and the processor is coupled to the communication interface.
  • the communication interface may be a transceiver, or an input / output interface.
  • the communication interface may be an input / output interface.
  • the transceiver may be a transceiver circuit.
  • the input / output interface may be an input / output circuit.
  • an apparatus for measuring channel quality may be a network device designed in the foregoing method or a chip provided in the network device.
  • the apparatus includes: a processor, coupled to the memory, which can be used to execute instructions in the memory to implement the second or fourth aspect described above, and executed by a network device in any possible implementation manner of the second or fourth aspect.
  • the device further includes a memory.
  • the apparatus further includes a communication interface, and the processor is coupled to the communication interface.
  • the communication interface may be a transceiver, or an input / output interface.
  • the communication interface may be an input / output interface.
  • the transceiver may be a transceiver circuit.
  • the input / output interface may be an input / output circuit.
  • a program for executing the methods provided in the first to fourth aspects when executed by a processor.
  • a program product includes program code, when the program code is run by a communication unit, a processing unit or transceiver, or a processor of a device (for example, a network device or a terminal device) , So that the apparatus executes any one of the above-mentioned first to fourth aspects and possible implementations thereof.
  • a computer-readable medium stores a program, and the program causes a device (for example, a network device or a terminal device) to execute the first to fourth aspects and their possibilities.
  • a device for example, a network device or a terminal device
  • FIG. 1 is a schematic diagram of an application scenario of a technical solution provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a network architecture according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of another network architecture according to an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a terminal device and a network device providing random access in four steps according to an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of a method for measuring channel quality according to an embodiment of the present application.
  • FIG. 6 is another schematic flowchart of a method for measuring channel quality according to an embodiment of the present application.
  • FIG. 7 is another schematic flowchart of a method for measuring channel quality according to an embodiment of the present application.
  • FIG. 8 is another schematic flowchart of a method for measuring channel quality according to an embodiment of the present application.
  • FIG. 9 is another schematic flowchart of a method for measuring channel quality according to an embodiment of the present application.
  • FIG. 10 is another schematic flowchart of a method for measuring channel quality according to an embodiment of the present application.
  • FIG. 11 is a schematic block diagram of an apparatus for measuring channel quality according to an embodiment of the present application.
  • FIG. 12 is another schematic block diagram of an apparatus for measuring channel quality according to an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • GSM global mobile communication
  • CDMA code division multiple access
  • WCDMA broadband code division multiple access
  • GPRS general packet radio service
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunications System
  • WiMAX Global Interoperability for Microwave Access
  • the terminal device in the embodiments of the present application may refer to user equipment, access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or User device.
  • Terminal equipment can also be cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), and wireless communications Functional handheld devices, computing devices, or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in the future 5G network, or public land mobile network (PLMN) in future evolution Terminal equipment and the like are not limited in this embodiment of the present application.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDAs personal digital assistants
  • PLMN public land mobile network
  • the network device in the embodiment of the present application may be a device for communicating with a terminal device, and the network device may be a Global System for Mobile Communication (GSM) system or a Code Division Multiple Access (CDMA) system.
  • the base station (Base Transceiver Station (BTS)) can also be a base station (NodeB, NB) in a wideband code division multiple access (WCDMA) system, or an evolved base station (evoled) in an LTE system.
  • GSM Global System for Mobile Communication
  • CDMA Code Division Multiple Access
  • the base station can also be a base station (NodeB, NB) in a wideband code division multiple access (WCDMA) system, or an evolved base station (evoled) in an LTE system.
  • NodeB, NB base station
  • WCDMA wideband code division multiple access
  • evoled evolved base station
  • NodeB can also be a wireless controller in a cloud radio access network (CRAN) scenario, or the network device can be a relay station, access point, in-vehicle device, wearable device, and future
  • CRAN cloud radio access network
  • the network equipment in the 5G network or the network equipment in the future evolved PLMN network is not limited in the embodiments of the present application.
  • the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
  • This hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also called main memory).
  • the operating system may be any one or more computer operating systems that implement business processing through processes, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system.
  • This application layer contains applications such as browsers, address books, word processing software, and instant messaging software.
  • the embodiment of the present application does not specifically limit the specific structure of the execution subject of the method provided by the embodiment of the present application, as long as the program that records the code of the method provided by the embodiment of the application can be run to provide the program according to the embodiment of the application.
  • the communication may be performed by using the method described above.
  • the method execution subject provided in the embodiments of the present application may be a terminal device or a network device, or a function module in the terminal device or the network device that can call a program and execute the program.
  • various aspects or features of the present application may be implemented as a method, apparatus, or article of manufacture using standard programming and / or engineering techniques.
  • article of manufacture encompasses a computer program accessible from any computer-readable device, carrier, or medium.
  • computer-readable media may include, but are not limited to: magnetic storage devices (eg, hard disks, floppy disks, or magnetic tapes, etc.), optical disks (eg, compact discs (CDs), digital versatile discs (DVDs) Etc.), smart cards and flash memory devices (for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.).
  • various storage media described herein may represent one or more devices and / or other machine-readable media used to store information.
  • machine-readable medium may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instruction (s) and / or data.
  • FIG. 1 is a schematic diagram of an application scenario of a technical solution provided by an embodiment of the present application.
  • the network device 110 and the terminal devices 120 to 170 form a communication system.
  • the network device 110 can send The downlink information is sent to the terminal device 120 to the terminal device 170, and the terminal device 120 to the terminal device 170 may also send the uplink information to the network device 110.
  • the terminal devices 150 to 170 can also form a communication system.
  • the terminal device 160 can send information to the terminal device 150 and the terminal device 170, and the terminal device 150 and the terminal device 170 can also send information to the terminal. Equipment 160.
  • the method for measuring channel quality may be applicable to a wireless communication system.
  • two communication devices in the wireless communication system have a wireless communication connection, and the two One of the communication devices may correspond to the terminal device shown in FIG. 1, for example, it may be the terminal device 160 in FIG. 1 or a chip configured in the terminal device 160; in the two communication devices, The other communication device may correspond to the network device shown in FIG. 1.
  • the communication device may be the network device 110 in FIG. 1, or may be a chip configured in the network device 110.
  • FIG. 2 is a schematic diagram of a network architecture provided by an embodiment of the present application.
  • the network architecture includes a core network (CN) device and a radio access network (RAN) device.
  • the RAN device includes a baseband device and a radio frequency device.
  • the baseband device can be implemented by one node or multiple nodes.
  • the radio frequency device can be implemented independently from the baseband device remotely, can also be integrated into the baseband device, or part of the remote part Integrated in the baseband device.
  • a RAN device eNB
  • eNB includes a baseband device and a radio frequency device, where the radio frequency device can be remotely arranged relative to the baseband device, such as a remote radio unit (RRU) remotely arranged relative to the BBU.
  • RRU remote radio unit
  • the control plane protocol layer structure may include a radio resource control (RRC) layer, a packet data convergence layer protocol (PDCP) layer, a radio link control (RLC) layer, and a media interface. Functions of the protocol layer such as the media access control (MAC) layer and the physical layer.
  • RRC radio resource control
  • PDCP packet data convergence layer protocol
  • RLC radio link control
  • Functions of the protocol layer such as the media access control (MAC) layer and the physical layer.
  • the user plane protocol layer structure can include the functions of the protocol layers such as the PDCP layer, the RLC layer, the MAC layer, and the physical layer; in one implementation, the PDCP layer can also include a service data adaptation (SDAP) layer .
  • SDAP service data adaptation
  • a RAN device may include a centralized unit (CU) and a distributed unit (DU). Multiple DUs can be centrally controlled by one CU.
  • the CU and DU can be divided according to the protocol layer of the wireless network. For example, the functions of the PDCP layer and above are set in the CU, and the functions of the protocol layers below PDCP, such as the RLC layer and the MAC layer are set in the DU.
  • a RAN device can implement the functions of protocol layers such as RRC, PDCP, RLC, and MAC by one node; or multiple nodes can implement the functions of these protocol layers; for example, in an evolution structure, a RAN device can include CU and DU, Multiple DUs can be centrally controlled by one CU. As shown in Figure 2, CU and DU can be divided according to the protocol layer of the wireless network. For example, the functions of the PDCP layer and above are set in the CU, and the functions of the protocol layers below PDCP, such as the RLC layer and the MAC layer are set in the DU.
  • This division of the protocol layer is only an example. It can also be divided at other protocol layers, for example, at the RLC layer.
  • the functions of the RLC layer and above are set in the CU, and the functions of the protocol layers below the RLC layer are set in the DU.
  • it is divided in a certain protocol layer, for example, setting some functions of the RLC layer and functions of the protocol layer above the RLC layer in the CU, and setting the remaining functions of the RLC layer and the functions of the protocol layer below the RLC layer in the DU.
  • it can also be divided in other ways, for example, by delay, and the function that needs to meet the delay requirement in processing time is set in the DU, and the function that does not need to meet the delay requirement is set in the CU.
  • the radio frequency device can be remote, not placed in the DU, or integrated in the DU, or part of the remote can be integrated in the DU, without any restrictions here.
  • FIG. 3 shows a schematic diagram of another network architecture provided by an embodiment of the present application.
  • the control plane (CP) and user plane (UP) of the CU can also be changed. It is separated and implemented by different entities, which are a control plane CU entity (CU-CP entity) and a user plane CU entity (CU-UP entity).
  • CU-CP entity control plane CU entity
  • CU-UP entity user plane CU entity
  • the signaling generated by the CU can be sent to the terminal device through the DU, or the signaling generated by the terminal device can be sent to the CU through the DU.
  • the DU can directly transmit to the terminal device or the CU through protocol layer encapsulation without parsing the signaling. If the following embodiments involve the transmission of such signaling between the DU and the terminal, at this time, the sending or receiving of signaling by the DU includes this scenario.
  • the signaling at the RRC or PDCP layer will eventually be processed as the PHY layer signaling and sent to the terminal device, or it will be transformed from the received PHY layer signaling.
  • the RRC or PDCP layer signaling can also be considered to be sent by the DU, or sent by the DU and the radio frequency.
  • the CU is divided into network equipment on the RAN side.
  • the CU may also be divided into network equipment on the CN side, which is not limited herein.
  • the devices in the following embodiments of the present application may be located at the terminal according to the functions they implement.
  • the network device may be a CU node, or a DU node, or a RAN device including a CU node and a DU node.
  • NRSRP narrow band reference signal receiving power
  • NPRACH narrowband physical random access channel
  • Narrowband Internet of Things (NB-IoT) systems need to support a large coverage area.
  • the scheduling strategies of network devices will be completely different.
  • the terminal device at the center of the cell has better wireless channel conditions, and network equipment can use less power to establish reliable communication links, and can use large transmission code blocks, high-order modulation, carrier bonding, and other technical means.
  • Quickly complete data transmission for terminal equipment located at the edge of the cell or in the basement, the quality of the wireless channel is poor, network equipment may need to use larger power to maintain the link, and small code blocks and low Order modulation, multiple repeated transmissions, and spread spectrum techniques can complete data transmission.
  • the NB-IoT system introduces the concept of coverage level.
  • the channel transmission conditions of terminal devices at the same coverage level are similar.
  • Network devices can use similar scheduling parameters for such users, and they occupy similar control signaling overhead.
  • the NB-IoT system can be divided into 3 coverage levels.
  • the coverage level of terminal equipment that is closer to the network equipment is “general coverage” and the number of repetitions is not repeated.
  • the coverage level of terminal equipment that is far from the network equipment is "edge coverage.” ", The number of repetitions is medium; the coverage level of terminal equipment in scenarios such as basements is" extended coverage ", and the number of repetitions may be hundreds or even thousands of times.
  • the terminal equipment selects the appropriate number of transmissions according to the coverage level, which can reduce unnecessary repetition and reduce power overhead.
  • FIG. 4 shows a schematic flowchart of a terminal device and a network device performing random access in four steps according to an embodiment of the present application. It should be understood that FIG. 4 uses contention based RA (CBRA) in NR as an example. The process includes:
  • S210 The terminal device sends a random access process message 1 (Msg1) to the network device.
  • Msg1 random access process message 1
  • the random access procedure message 1 may also be referred to as a random access request message or a random access preamble.
  • the main role of preamble is to tell the network device that there is a random access request, and enable the network device to estimate the transmission delay between the remaining terminal devices, so that the network device can calibrate the uplink timing and pass the calibration information through the random access process in S220.
  • Message two (Msg2) informs the terminal device.
  • the terminal device may select a preamble and transmit it on a physical random access channel (PRACH).
  • PRACH physical random access channel
  • the network device informs the terminal device of the time-frequency resource set of the PRACH that the current cell can use to transmit the preamble through the system message.
  • the terminal device initiates random access, it also needs to select the PRACH resource to send the preamble.
  • the method 200 further includes:
  • the network device sends a system message to the terminal device, where the system message includes configuration information of an uplink carrier and a downlink carrier.
  • the non-anchor narrowband internet of things carrier (non-anchor NB-IoT carrier) introduced in typical Rel-14 is used for RACH as an example.
  • Network equipment can be used in narrowband system message block 2 (SIB2 -NB) broadcasts narrowband physical random access channel (narrowband physical random access channel (NPRACH)) resource information on the anchor carrier, and downlink (DL) narrowband corresponding to the uplink (UL) anchor carrier.
  • SIB2 -NB narrowband system message block 2
  • NPRACH narrowband physical random access channel
  • DL downlink
  • the Internet of Things carrier is the downlink anchor carrier (DL anchor carrier, DL anchor carrier).
  • the anchor carrier refers to the terminal device assuming a narrowband primary synchronization signal (narrowband primary synchronization signal (NPSS) / narrowband secondary synchronization signal synchronization (NSSS) / narrowband physical broadcast channel (NPBCH) / narrowband system information block (system information block-NB (SIB-NB)) carrier, for time division duplex (TDD) anchor
  • NPSS narrowband primary synchronization signal
  • NSSS narrowband secondary synchronization signal synchronization
  • NPBCH narrowband physical broadcast channel
  • SIB-NB system information block-NB
  • the non-anchor carrier refers to the carrier that the terminal device assumes no NPSS / NSSS / NPBCH / SIB-NB transmission
  • the non-anchor carrier refers to the carrier that the terminal device assumes no NPSS / Carrier for NSSS / NPBCH transmission.
  • Network devices can broadcast a series of non-anchor carrier configuration information in the narrowband system message block 22 (NB-SIB22), including a series of DL non-anchor carrier and UL configuration information.
  • N-SIB22 narrowband system message block 22
  • each UL non-anchor carrier will be configured with NPRACH resources according to the coverage level
  • each NPRACH resource may be configured with the parameter npdcch-carrierIndex-r14. This parameter is used to indicate the Msg2 corresponding to Msg1 of the NPRACH resource and the scheduling.
  • the terminal device determines a downlink carrier set.
  • a downlink carrier list is configured.
  • Each entry in the list includes carrier configuration information.
  • the configuration information includes the center frequency position of the carrier, the deployment mode, the reference signal power configuration, and the effective subcarriers. Frame configuration, downlink interval configuration, etc.
  • the downlink carriers can be numbered. For example, the index of the first entry in the list is '1', the index of the second entry is '2', and so on. The downlink carrier can be subsequently addressed according to this index.
  • the downlink carrier set may be a downlink carrier configured for system random access (RACH) or paging.
  • RACH system random access
  • 15 downlink carriers for random access or paging are configured in the system message, and these 15 downlink carriers can be used as a downlink carrier set.
  • the downlink carrier set is the downlink carrier associated with the RACH configured in the system message, that is, the NPDCCH specified in the RACH resource configuration for Msg2, and the NPDCCH scheduling Msg3 retransmission, and the NPDCCH scheduling Msg4 and Msg4 downlink carriers, where Msg2 and Msg4 can be carried by NPDSCH. If 15 downlink carriers for random access or paging are configured in the system message, and only 5 downlink carriers are associated with the RACH, these 5 downlink carriers can be used as a downlink carrier set.
  • the method 200 further includes:
  • the terminal device determines a first uplink carrier
  • the terminal device sends the Msg1 to the network device on the first uplink carrier.
  • the terminal device may select a certain uplink carrier to send Msg1 according to the configuration in SIB2-NB and SIB22-NB according to a preset probability.
  • the terminal device determines a first random access channel resource on the first uplink carrier according to the coverage level
  • the terminal device sends Msg1 to the network device on the first random access channel resource.
  • the terminal device also needs to select a PRACH resource to send Msg1 on the first uplink carrier.
  • the terminal device can determine which PRACH resource of the first uplink carrier to send Msg1 through the coverage level, and send it through SIB2 or SIB22.
  • the configuration information determines the downlink carrier corresponding to the selected uplink PRACH resource.
  • the terminal device thus learns the NPDCCH and Msg2 that schedule Msg2, the NPDCCH that schedules Msg3 retransmission, the NPDCCH that schedules Msg4, and Msg4 during the RACH process. And Msg2 and Msg4 can be transmitted through NPDSCH.
  • the terminal device measures the NRSRP of the carrier measured on the terminal device according to the narrowband reference signal (NRS) sent on the downlink NB-IoT carrier (the NRSRP directly reflects the wireless signal between the network device and the terminal device) Transmission loss).
  • NRS narrowband reference signal
  • the terminal device compares the measured NRSRP with several NRSRP thresholds (NRSRP thresholds are issued through system messages), and determines the coverage level according to the comparison result.
  • NRSRP thresholds are issued through system messages
  • system messages can send up to two NRSRP thresholds.
  • the following two NRSRP thresholds (NRSRP threshold 1 and NRSRP threshold 2) are used as an example. If NRSRP ⁇ NRSRP threshold 2 measured by a terminal device, the terminal device is at the coverage level. 2 (corresponding to extended coverage); otherwise, if the NRSRP value ⁇ NRSRP threshold value measured by the terminal device is 1, the terminal device is at the coverage level 1 (corresponding to edge coverage); otherwise, the terminal device is at the coverage level 0 (corresponding to ordinary coverage).
  • the network device will configure different NPRACH resources according to different coverage levels.
  • This NPRACH resource includes the number of repetitions (can take the value of 1, 2, 4, 8, 16, 32, 64, 128), the number of subcarriers, and is used for random access.
  • the terminal device obtains a corresponding coverage level by comparing the measured NRSRP with the NRSRP threshold, and sends Msg1 on the NPRACH resource corresponding to the coverage level. For different coverage levels, the terminal device will use different NPRACH power control methods and repetition times to send Msg1, thereby ensuring the receiving performance of uplink NPRACH reception.
  • the network device sends a random access process message 2 (Msg2) to the terminal device.
  • Msg2 random access process message 2
  • the second random access procedure message may also be referred to as a random access response message.
  • the network device after receiving the preamble sent by the terminal device, the network device sends a corresponding random access response (RA response) to the terminal device, which may include transmitting a random access process message three (Msg3) in S230.
  • Msg3 random access process message three
  • CBRA after receiving the RAR, the terminal device judges whether the preamble identifier in the RAR is the same as the preamble sent in S210. If the preamble identifier is the same, the RAR reception is considered successful; otherwise, the RAR reception is considered failed, and the terminal device may re-trigger the RA process.
  • the terminal device sends a random access process message three (Msg3) to the network device.
  • Msg3 random access process message three
  • the terminal device transmits data through a physical uplink shared channel (PUSCH) on the corresponding uplink transmission resource according to the UL grant information indicated in the RAR.
  • the terminal device may include an RRC message and identification information of the terminal device, such as The C-RNTI information of the terminal device, the resume identification (Resume ID) or the inactive identification (I-RNTI) of the terminal device, where the Resume ID or I-RNTI is assigned to the terminal device by a network device,
  • the terminal device reports the identifier to be used by the network device to identify the identity of the terminal device and related configuration information.
  • the identification information of the terminal device may be a SAE temporary mobile subscriber identity (S-TMSI), or a random value.
  • S-TMSI SAE temporary mobile subscriber identity
  • the network device sends a random access process message four (Msg4) to the terminal device.
  • Msg4 random access process message four
  • the network device will carry the identification information of the terminal device through Msg4 in S240 to specify the terminal device that wins the conflict in the conflict resolution mechanism. , And other terminal devices that did not win the conflict resolution will re-initiate random access.
  • the coverage level in the current NB-IoT system is corresponding to the specific coverage level after comparing the downlink NRSRP measurement value with the pre-configured NRSRP threshold value of the network device.
  • NRSRP threshold network equipment should try to ensure the reception performance of the upstream NPRACH preamble. Users with a smaller NRSRP may choose to repeat the preamble multiple times with a PRACH with a high coverage level.
  • the interference level of uplink reception of a network device there is a difference between the interference level of uplink reception of a network device and the interference level of a downlink terminal device. Even for the same NRSRP terminal device, due to the difference in its specific location, the signal-to-interference-plus-noise ratio (SINR) of its downlink reception may also be very different. Therefore, the coverage level determined by NRSRP measurement cannot reflect the downlink channel quality and reception performance of the terminal device.
  • SINR signal-to-interference-plus-noise ratio
  • the network device can usually set the NRSRP threshold for coverage level determination according to the uplink PRACH reception performance.
  • the coverage level determined by the terminal device according to this NRSRP threshold can accurately reflect the uplink receiving situation, but it is difficult to reflect the downlink SINR of the terminal device. Therefore, the network device cannot actually know the downlink coverage of the terminal.
  • it can only configure the conservative maximum number of repetitions of the NPDCCH search space or schedule the downlink data conservatively. This consumes the power of the terminal device and the consumption of system resources. Say there is a big loss.
  • the NB-IoT system supports the configuration of a downlink carrier to the terminal device through RRC signaling. Because the terminal device cannot know the downlink coverage of each carrier and the load situation (such as light load or full load), the network device is assigning downlink to the terminal device. Carriers are blind when allocating downlink resources. This can easily lead to unbalanced load on each downlink carrier and unreasonable downlink transmission resource allocation.
  • the embodiments of the present application provide a method and apparatus for measuring channel quality.
  • the channel quality of the downlink carrier is reported to the network device through the terminal device, which helps the network device to determine the load condition of the downlink carrier, thereby helping the network device to perform a more reasonable Resource scheduling.
  • FIG. 5 shows a schematic flowchart of a method 300 for measuring channel quality according to an embodiment of the present application. As shown in FIG. 5, the method 500 includes:
  • the network device sends configuration information to the terminal device.
  • the terminal device receives the configuration information sent by the network device, and the configuration information is used to configure a downlink carrier set.
  • the downlink carrier set includes one or more downlink carriers.
  • the configuration information is carried in a system message, and the system message may be SIB22-NB or other system messages.
  • the downlink carrier set may include a downlink carrier configured for random access channel (random access channel, RACH) configured in SIB22-NB or a downlink carrier used for paging.
  • RACH random access channel
  • the downlink carrier set may include a downlink carrier for RACH configured in SIB22-NB or a subset of downlink carriers for paging, that is, it may include a downlink carrier for RACH configured in SIB22-NB or Part of the downlink carriers used for paging.
  • the downlink carrier set may include a downlink carrier associated with the RACH configured in the SIB22-NB.
  • the downlink carrier set may include a downlink carrier configured for measurement by a network device.
  • the downlink carrier set may include an anchor carrier.
  • the terminal device determines a first downlink carrier from the downlink carrier set.
  • the first downlink carrier includes one or more downlink carriers.
  • the first downlink carrier includes one or more downlink carriers in the downlink carrier set.
  • the first downlink carrier includes one or more downlink carriers of the downlink carrier set, which has the best channel quality for the terminal device.
  • the first downlink carrier includes one or more downlink carriers indicated by the network device.
  • the first downlink carrier includes one or more downlink carriers determined by the terminal device according to a preset rule.
  • the first information further includes information for indicating a position of the first downlink carrier.
  • the terminal device sends a random access process message three Msg3 to the network device.
  • the network device receives the Msg3 sent by the terminal device.
  • the Msg3 includes first information, and the first information includes the first downlink information.
  • Information about the channel quality of the carrier which is used to provide the network device with information about the minimum repetition level required for the downlink channel to reach a preset block error rate according to a preset transmission parameter.
  • the preset block error rate may be 1% or 10%.
  • the downlink channel is a downlink control channel or a downlink data channel.
  • the downlink channel is a downlink channel carrying scheduling Msg2, carrying Msg2, scheduling Msg3 retransmission, or carrying Msg4.
  • the downlink channel is a downlink channel carrying data or signaling after Msg4.
  • the terminal device may measure the channel quality of the first downlink carrier before sending Msg3.
  • the terminal device carries the channel quality information of one or more downlink carriers in the downlink carrier set in Msg3, and the network device may optimize the carrier on the carrier based on the channel quality of the downlink carrier. Resource allocation, which helps improve the efficiency of downlink resources.
  • the method before the network device receives the Msg3 sent by the terminal device, the method further includes:
  • the terminal device sends a random access process message Msg1 to the network device, and the network device receives the Msg1 sent by the terminal device;
  • the network device sends a random access process message 2 Msg2 to the terminal device, and the terminal device receives the Msg2 sent by the network device;
  • the Msg3 further includes second information, and the second information includes information used to indicate a channel quality of a second downlink carrier, and the second downlink carrier is used to carry the Msg2.
  • the terminal device carries information about the channel quality of the downlink carrier carrying Msg2 in Msg3, which helps the network device to optimize the resources for scheduling the downlink channel for Msg3 retransmission and the downlink channel for Msg4. Allocation, thereby helping to improve the efficiency of downlink resources.
  • the method before the network device receives the random access procedure message three sent by the terminal device, the method further includes:
  • the network device sends instruction information to the terminal device, where the instruction information is used to indicate whether the terminal device is allowed to report channel quality information of the second downlink carrier; and / or,
  • the indication information is used to indicate whether the terminal device is allowed to report channel quality information of the first downlink carrier; and / or,
  • the indication information is used to indicate whether the terminal device is allowed to report the position of the first downlink carrier.
  • the indication information may be indicated by a system message, or RRC signaling, or media access control (MAC) control elements (CE), or RAR.
  • RRC signaling or RRC signaling
  • MAC media access control
  • CE control elements
  • the terminal device determines this indication information before reporting the downlink channel quality. If the indication information indicates that the terminal device is allowed to report the channel quality information of the second downlink carrier, the channel quality information of the first downlink carrier, and The position information of the first downlink carrier, then the terminal device may report the first information and the second information in the random access message three.
  • the method before the network device receives the random access procedure message three sent by the terminal device, the method further includes:
  • the terminal device Sending, by the terminal device, the terminal device's capability information to the network device, where the capability information is used to indicate whether the terminal device has the capability to report channel quality information of the second downlink carrier; and / or,
  • the indication information is used to indicate that the terminal device has a capability of reporting information about channel quality of the first downlink carrier; and / or,
  • the indication information is used to indicate that the terminal device is capable of reporting information about the position of the first downlink carrier.
  • the terminal device may The third random access message reports the first information and the second information.
  • the terminal device can report the capability in an explicit manner, and indicate whether the terminal device has the capability through one or more bits of information. Taking 1 bit as an example, “1" means that the terminal device has the capability, “ "0” indicates that the terminal device does not have this capability.
  • the terminal device can report the capability in an implicit way.
  • the network device can be configured with multiple random access resources. Each random access resource is associated with a terminal device capability.
  • the terminal device selects different random access resources to initiate Random access, implicitly indicates the capabilities of the terminal equipment. Take the configuration of two random access resources as an example, the first random access resource and the second random access resource. Selecting the first random access resource indicates that the terminal device has the capability, and the second random access resource indicates that the terminal device does not have The ability.
  • the Msg3 further includes first instruction information, and the first instruction information includes information used to instruct a terminal device to report a type in the Msg3.
  • the first instruction information may be used to instruct the Msg3 to report the first information or
  • the second information and the first indication information may also be used to instruct to report the first information or the second information or the first information and the second information to the Msg3.
  • the terminal device may carry channel quality information of multiple downlink carriers in Msg3.
  • the Msg3 includes one of the carriers in the downlink carrier set (the channel quality is the best, and the network device Indicates (or the terminal device determines according to a preset rule) the channel quality information and the channel quality information of the downlink carrier carrying Msg2.
  • the terminal device only needs to carry the channel quality information of the downlink carrier carrying Msg2 in Msg3.
  • FIG. 6 shows a schematic flowchart of a method 400 for measuring channel quality according to an embodiment of the present application. As shown in FIG. 6, the method 400 includes:
  • the network device sends configuration information to the terminal device.
  • the terminal device receives the configuration information sent by the network device, and the configuration information is used to configure a downlink carrier set.
  • the configuration information is carried in a system message.
  • the system message is SIB22-NB or other system messages.
  • the system message includes SIB2-NB and SIB22-NB.
  • the configuration information is carried in RRC signaling, media access control (MAC) control elements (CE), or RAR indication.
  • MAC media access control
  • CE control elements
  • SIB2-NB and SIB22-NB have been described in the method 200, and for the sake of brevity, they are not repeated here.
  • the terminal device sends a random access process message Msg1 to the network device, and the network device receives the Msg1 sent by the terminal device.
  • the terminal device may send Msg1 on the first random access resource on the first uplink carrier.
  • the process by which the terminal device determines the first uplink carrier and the first random access resource has been described in method 200. For the sake of brevity, I won't repeat them here.
  • the method 400 further includes:
  • the terminal device determines one or more carriers from the downlink carrier set.
  • the terminal device measures a channel quality of each of the one or more downlink carriers.
  • the terminal device determines the first downlink carrier according to the channel quality of each downlink carrier.
  • the first downlink carrier is one or more downlink carriers with the best channel quality among the one or more downlink carriers.
  • the one or more downlink carriers may be a complete set of the downlink carrier set, or may be a subset of the downlink carrier set.
  • S411-S413 may be performed before or after S420.
  • the terminal device uses NRS for measurement on one or more downlink carriers in the downlink carrier set to obtain an SINR estimation value, which corresponds to a specific downlink control information (downlink control control information).
  • DCI downlink control information
  • NPDCCH DCI format
  • BLER block error rate
  • the channel quality of the downlink carrier where Msg2 is located can be obtained according to the above description.
  • the channel quality measurement of the downlink carrier where Msg2 is located in the RACH process can be completed before or after sending Msg1. If it is measured before sending Msg1, it needs to be configured in the terminal device measurement system message. Each of the one or more downlink carriers in the downlink carrier set for random access is stored, and then the channel quality of each downlink carrier is stored. After the terminal device sends Msg1, the downlink carrier where Msg2 is located can be determined Position, and determine the channel quality corresponding to the downlink carrier where Msg2 is located from the channel qualities of multiple downlink carriers that have been stored according to the downlink carrier position. Because before transmitting Msg1, the terminal device does not know on which carrier Msg2 is transmitted.
  • the one or more carriers may include the downlink carrier where Msg2 is located.
  • the downlink carrier where Msg2 is located For example, 15 downlink carriers for RACH / Paging are configured in the system message, and only 5 downlink carriers are associated with RACH. Among the 15 carrier downlink carriers, 10 downlink carriers other than 5 RACH-related downlink carriers are determined to be the one or more carriers. If the terminal device performs the channel quality of the downlink carrier where Msg2 is located before sending Msg1, For measurement, the terminal device can measure the five downlink carriers related to the RACH, and then after determining which carrier Msg2 is sent on, the channel quality of the corresponding downlink carrier carrying Msg2 can be determined.
  • the terminal device determines the position of the downlink carrier where Msg2 is located, and the terminal device uses NRS for measurement on this downlink carrier, optionally using a cell reference signal (CRS), Msg2, or scheduling Msg2
  • NRS cell reference signal
  • Msg2 cell reference signal
  • Msg2 scheduling Msg2
  • the NPDCCH performs measurement to obtain the channel quality corresponding to the downlink carrier.
  • the terminal device can directly perform the downlink carrier carrying Msg2. measuring.
  • Table 1 shows an NPDCCH transmission parameter for reporting channel quality.
  • the network device sends a random access process message 2 Msg2 to the terminal device, and the terminal device receives the Msg2 sent by the network device.
  • the terminal device sends a random access process message three Msg3 to the network device, and the network device receives the Msg3 sent by the terminal device.
  • the Msg3 includes first information, and the first information includes information used to indicate channel quality of one or more downlink carriers with the best channel quality.
  • 15 downlink carriers for RACH / Paging are configured in the system message, and only 5 downlink carriers are associated with RACH.
  • the terminal device may determine that the 5 downlink carriers are one or more carriers in the downlink carrier set. And measure the channel quality of the 5 downlink carriers, the terminal device can carry the channel quality information of the downlink carrier with the best channel quality among the 5 downlink carriers, and can also carry the 5 in Msg3 Channel quality information of the first two downlink carriers with the best channel quality among the three downlink carriers.
  • the first information further includes information for indicating positions of the one or more downlink carriers.
  • the Msg3 includes second information, and the second information includes information about channel quality of a downlink carrier used to carry Msg2.
  • the network device sends a random access process message four Msg4 to the terminal device, and the terminal device receives the Msg4 sent by the network device.
  • the Msg4 here may include an RRCConnectionReconfiguration-NB message, an RRCConnectionReestablishment-NB message, an RRCConnectionResume-NB message, or an RRCConnectionSetup-NB message.
  • the Msg4 includes information for indicating one or more downlink carriers with the best channel quality.
  • the network device may indicate the location of the one or more downlink carriers with the best channel quality to the terminal device in Msg4, and the terminal device may subsequently perform downlink channels on the one or more downlink carriers (for example, NPDCCH and NPDSCH).
  • the one or more downlink carriers for example, NPDCCH and NPDSCH.
  • FIG. 7 shows a flowchart of receiving a system message from a terminal device to entering a connected state according to an embodiment of the present application.
  • the terminal device before the terminal device sends Msg1, for the downlink, the terminal device is on the anchor carrier. Receive NPDCCH or NPDSCH.
  • the terminal device chooses to send an uplink PRACH on the first uplink carrier according to a preset probability, and determines the corresponding coverage level by comparing the NRSRP and NRSRP threshold limits, and then determines which NPRACH on the first uplink carrier Msg1 is sent on the resource, and the non-anchor carrier A corresponding to the selected uplink PRACH resource is determined through the configuration information in SIB2 or SIB22.
  • the terminal device thus learns the NPDCCH and NPDSCH of Msg2 in the RACH process, the NPDCCH scheduling Msg3 retransmission, and Msg4. Both NPDCCH and NPDSCH will be sent on the non-anchor carrier A.
  • the terminal device reports the downlink channel quality of the non-anchor carrier A where Msg2 is located in Msg3, which helps to optimize the resource allocation of the NPDCCH for Msg3 retransmission and the NPDCCH and NPDSCH of Msg4, thereby improving the efficiency of downlink resources.
  • the network device can configure a non-anchor downlink carrier B to the terminal device in Msg4, and the terminal device subsequently receives NPDCCH and NPDSCH on the non-anchor downlink carrier B.
  • the terminal device reports the carrier position of the one or more downlink carriers with the best channel quality in the downlink measurement carrier set and the downlink channel quality corresponding to the carrier in Msg3. Based on this result, the network device can allocate the downlink carrier with the best channel quality to the terminal device in Msg4 to achieve frequency selective scheduling. At the same time, based on the downlink channel quality of this carrier, the resource allocation of NPDCCH and NPDSCH on this carrier can be optimized, thereby improving Downstream resource efficiency.
  • the method 300 for measuring channel quality according to the embodiment of the present application is described above with reference to FIG. 6 and FIG. 7.
  • the terminal device can report the channel quality and location information of one or more downlink carriers with the best channel quality.
  • the method 500 provided in the embodiment of the present application is described below with reference to FIG. 8.
  • a network device may indicate to a terminal device a downlink carrier that needs to be measured.
  • FIG. 8 shows a schematic flowchart of a method 500 for measuring channel quality according to an embodiment of the present application. As shown in FIG. 8, the method 500 includes:
  • the network device sends configuration information to the terminal device.
  • the terminal device receives the configuration information sent by the network device, and the configuration information is used to configure a downlink carrier set.
  • the terminal device sends a random access process message Msg1 to the network device, and the network device receives the Msg1 sent by the terminal device.
  • the method 500 further includes:
  • the network device sends third information to the terminal device.
  • the terminal device receives the third information sent by the network device, and the third information is used to indicate a first downlink carrier.
  • the terminal device determines a first downlink carrier from the downlink carrier set according to the third information.
  • the third information is downlink control information DCI.
  • the DCI is a DCI corresponding to an NPDCCH order, and the DCI is used for a random access process triggered by the NPDCCH order.
  • the DCI corresponding to the NPDCCH order may be used to indicate one or more of the position of the uplink carrier, the position of the subcarrier, or the number of repetitions for the terminal device to send Msg1.
  • the DCI corresponding to the NPDCCH order may also be used to indicate one or more downlink carriers.
  • the terminal device may measure one or more downlink carriers indicated by the DCI corresponding to the NPDCCH order.
  • the DCI corresponding to the NPDCCH order is the DCI format N1
  • the idle or reserved bits in the DCI format N1 may be used to indicate the first downlink carrier.
  • the third information is a system message, and the third message is SIB2-NB or SIB22-NB, or SIB2-NB and SIB22-NB.
  • Specific instructions of the third information may include:
  • the network device may indicate the first downlink carrier for each uplink carrier used for random access, and the terminal device may determine the first downlink carrier by determining the uplink carrier that sends Msg1.
  • the network device may indicate the first downlink carrier for each random access resource of each uplink carrier used for random access, and the terminal device may determine the first downlink carrier by determining the random access resource for sending Msg1.
  • the network device may also indicate a first downlink carrier for each subcarrier of each random access resource of each uplink carrier used for random access, and the terminal device may determine the first subcarrier by determining the subcarrier that sends Msg1. Line carrier.
  • the terminal device measures a channel quality of the first downlink carrier.
  • the network device sends a random access process message Msg2 to the terminal device, and the terminal device receives the Msg2 sent by the network device.
  • the Msg2 includes third information, and the third information is used to indicate one or more downlink carriers.
  • the terminal device may know that the network device wants the channel quality of the one or more downlink carriers to be measured.
  • S512 may be performed after S530.
  • the third information may be sent by the network device to the terminal device before the terminal device sends Msg1, or may be sent to the terminal device in Msg2, or may be sent through other
  • the embodiments of the present application are not limited to the above two modes.
  • the terminal device sends a random access process message three Msg3 to the network device, and the network device receives the Msg3 sent by the terminal device.
  • Msg3 includes first information, and the first information includes information used to indicate channel quality of the one or more downlink carriers.
  • the terminal device may measure one or more downlink carriers indicated in the third information, and carry the channel quality of the one or more downlink carriers in Msg3. information.
  • the terminal device reports the channel quality of the downlink carrier designated by the network device, and the network device determines the load condition of each carrier according to the channel quality reported by all terminal devices, for example, according to statistical data, the carrier with a better downlink channel quality
  • the load is lighter, and the carrier with poorer downlink channel quality has a heavier load, which helps network equipment to achieve load balancing. For example, some services of a carrier with a heavy load are allocated to a carrier with a lighter load.
  • the Msg3 includes second information, and the second information includes information about channel quality of a downlink carrier used to carry Msg2.
  • the terminal device reports the channel quality of the downlink carrier where Msg2 is located in Msg3, which helps to optimize the resource allocation of NPDCCH and NPDSCH for scheduling Msg3 retransmission and Msg4, thereby improving downlink resource efficiency.
  • the network device sends a random access process message four Msg4 to the terminal device, and the terminal device receives the Msg4 sent by the network device.
  • the method 500 further includes:
  • the network device adjusts a load of the first downlink carrier.
  • the network device can indicate downlink carrier A to 500 terminal devices, and downlink carrier B to 500 other terminal devices.
  • the terminal device responds to the channel quality of the downlink carrier through feedback. Determine the channel quality QA of the downlink carrier A measured by 90% of the terminal equipment.
  • the network device determines the channel quality QB of the downlink carrier B measured by 90% of the terminal equipment. If QA is better than QB, the network equipment can determine the downlink carrier.
  • the load of A is lighter and the load of downlink carrier B is heavier.
  • the network equipment may distribute some services of the heavy carrier downlink carrier B to the light carrier downlink carrier A.
  • the method 500 according to the embodiment of the present application is described above with reference to FIG. 8.
  • the downlink carrier measured by the terminal device in the method 500 may be indicated by the network device.
  • the method 600 is described below with reference to FIG. 9.
  • the terminal device in the method 600 may pass some predefined rules. Determine the downlink carrier to be measured.
  • FIG. 9 shows a schematic flowchart of a method 600 for measuring channel quality according to an embodiment of the present application. As shown in FIG. 9, the method 600 includes:
  • the network device sends configuration information to the terminal device.
  • the terminal device receives the configuration information sent by the network device, and the configuration information is used to configure a downlink carrier set.
  • the downlink carrier set includes one or more downlink carriers.
  • the configuration information is carried in a system message, and the system message may be SIB22-NB or other system messages.
  • the downlink carrier set may include a downlink carrier configured for RACH or a downlink carrier configured for paging in SIB22-NB.
  • the downlink carrier set may include a downlink carrier configured for RACH in the SIB22-NB or a subset of downlink carriers used for paging, that is, it may include a random access channel configured in the SIB22-NB ( random carrier (RACH) downlink carrier or a part of the downlink carriers used for paging.
  • a downlink carrier configured for RACH in the SIB22-NB or a subset of downlink carriers used for paging, that is, it may include a random access channel configured in the SIB22-NB ( random carrier (RACH) downlink carrier or a part of the downlink carriers used for paging.
  • RACH random carrier
  • the downlink carrier set may include a downlink carrier associated with the RACH configured in the SIB22-NB.
  • the downlink carrier set may include a downlink carrier configured for measurement by a network device.
  • the terminal device determines a first downlink carrier from the downlink carrier set according to a preset rule.
  • the method 600 further includes:
  • the terminal device determines one or more downlink carriers from the downlink carrier set.
  • the downlink carrier set may be a downlink carrier configured for random access or paging configured by a system message, and 15 downlink carriers used for random access or paging are configured in the system message.
  • the terminal device may use the 15 The downlink carrier is determined as the one or more downlink carriers.
  • the downlink carrier set is a downlink carrier associated with the RACH configured in the system message, and 15 downlink carriers for random access or paging are configured in the system message. Only 5 downlink carriers are associated with the RACH, and the terminal The device may determine the five downlink carriers as the one or more downlink carriers.
  • the one or more downlink carriers may be a complete set or a subset of the downlink carrier set.
  • the terminal device determining the first downlink carrier from the downlink carrier set according to a preset rule includes:
  • the terminal device determines a first downlink carrier from the one or more downlink carriers according to a preset rule.
  • the terminal device may use a paging carrier among one or more downlink carriers as a downlink measurement carrier, and the manner in which the terminal device determines the paging carrier is the existing technology.
  • the paging carrier is the minimum index n that satisfies the following formula,
  • IMSI is a set of decimal numbers that can be used as the identity of the terminal device.
  • the terminal device may determine the first downlink carrier from the one or more downlink carriers according to the identification information of the terminal device.
  • the terminal device may obtain a downlink carrier index according to the terminal device identifier (IMSI) and a value, and then determine the downlink carrier corresponding to the downlink carrier index from the downlink carrier set.
  • the value is a preset value. , It may be less than or equal to the number of carriers in the downlink carrier set, or the value is the number of carriers in the downlink carrier set.
  • the terminal device determines the one.
  • a carrier with a carrier index of “4” among multiple downlink carriers is used as the first downlink carrier.
  • the terminal device may determine the downlink carrier according to the location of the random access resource. For example, there is a mapping relationship between the location of the random access resource and the downlink carrier, and the mapping relationship has the following modes:
  • Each uplink carrier used for random access is mapped with a downlink carrier, and the terminal device can determine the first downlink carrier by determining the uplink carrier that sends Msg1.
  • Method 2 Each random access resource of each uplink carrier used for random access is mapped with a downlink carrier, and the terminal device determines the first downlink carrier by determining the random access resource for sending Msg1.
  • Method 3 Each subcarrier of each random access resource of each uplink carrier used for random access is mapped with a downlink carrier, and the terminal device can determine the first downlink carrier by determining the subcarrier that sends Msg1.
  • the terminal device may also determine the first downlink carrier by using other preset rules, and the embodiments of the present application are not limited to the above two methods.
  • the terminal device measures a channel quality of the first downlink carrier.
  • the terminal device sends a random access process message Msg1 to the network device, and the network device receives the Msg1 sent by the terminal device;
  • the network device sends a random access process message 2 Msg2 to the terminal device, and the terminal device receives the Msg2 sent by the network device.
  • S640 The terminal device sends a random access process message three Msg3 to the network device, and the network device receives the Msg3 sent by the terminal device.
  • the Msg3 includes first information, and the first information includes information used to indicate the channel quality of the first downlink carrier determined by the terminal device through a preset rule.
  • the first information further includes information for indicating a position of the first downlink carrier.
  • the terminal device may carry the channel quality information of the first downlink carrier in Msg3.
  • the terminal device reports the channel quality of the downlink carrier determined by the terminal device according to a preset rule, and the network device determines the load condition of each carrier according to the channel quality reported by all terminal devices, for example, according to statistical data, the downlink channel Carriers with better quality have a lighter load, and carriers with poorer downlink channel quality have a heavier load, which helps network equipment to achieve load balancing. For example, some services of a carrier with a heavy load are allocated to carriers with a lighter load.
  • the Msg3 includes second information, and the second information includes information about channel quality of a downlink carrier used to carry Msg2.
  • the terminal device reports the channel quality of the downlink carrier where Msg2 is located in Msg3, which helps to optimize the resource allocation of NPDCCH and NPDSCH for scheduling Msg3 retransmission and Msg4, thereby improving downlink resource efficiency.
  • the network device sends a random access process message four Msg4 to the terminal device, and the terminal device receives the Msg4 sent by the network device.
  • the method 600 further includes:
  • the network device adjusts a load of the first downlink carrier.
  • the terminal device may directly indicate the channel quality of the first downlink carrier and the downlink carrier carrying the channel quality of Msg2 in the first information and the second information, or may indirectly indicate through other methods. .
  • the first information may include information used to indicate a channel quality of the first downlink carrier
  • the second information may include used to indicate Information about the deviation of the channel quality of the downlink carrier where Msg2 is located from the channel quality of the first downlink carrier.
  • the network device may determine the channel quality of the downlink carrier where Msg2 is located based on the deviation in the second information and the channel quality in the first information. .
  • the second information may include information used to indicate channel quality of a downlink carrier where Msg2 is located
  • the first information may include used to indicate Information about the deviation of the channel quality of the first downlink carrier from the channel quality of the downlink carrier where Msg2 is located. Based on the deviation in the first information and the channel quality in the second information, the channel quality of the first downlink carrier can be determined.
  • the method 600 of the embodiment of the present application is described above with reference to FIG. 9.
  • the terminal device can determine the channel quality of the downlink carrier to be measured and report it to the network device through a preset rule.
  • the network device can implement load balancing based on the channel quality.
  • a method 700 according to an embodiment of the present application is described with reference to FIG. 10.
  • a terminal device may report an average value of channel quality of multiple downlink carriers, which is helpful for a network device to determine a load condition of a current system.
  • FIG. 10 shows a schematic flowchart of a method 700 for measuring channel quality according to an embodiment of the present application. As shown in FIG. 10, the method 700 includes:
  • the network device sends configuration information to the terminal device, and the terminal device receives the configuration information sent by the network device, and the configuration information is used to configure a downlink carrier set;
  • the terminal device determines multiple downlink carriers from the downlink carrier set.
  • the process by which the terminal device determines multiple downlink carriers from the downlink carrier set is similar to the process in the method 600 described above, and for brevity, details are not described herein again.
  • the terminal device measures multiple downlink carriers in the downlink carrier set to obtain the channel quality of each downlink carrier.
  • the terminal device determines an average value of channel quality of the multiple downlink carriers.
  • S720 The terminal device sends a random access process message Msg1 to the network device, and the network device receives the Msg1 sent by the terminal device;
  • S730 The network device sends a random access process message 2 Msg2 to the terminal device, and the terminal device receives the Msg2 sent by the network device;
  • the terminal device sends a random access process message three Msg3 to the network device, and the network device receives the Msg3 sent by the terminal device.
  • Msg3 includes fourth information, and the fourth information includes information used to indicate an average value of channel quality of the multiple downlink carriers.
  • the terminal device reports the average value of the channel quality of the terminal device according to multiple downlink carriers, which helps the network device to determine the load situation of the current system.
  • the Msg3 includes second information, and the second information includes information about channel quality of a downlink carrier used to carry Msg2.
  • the terminal device reports the channel quality of the downlink carrier where Msg2 is located in Msg3, which helps to optimize the resource allocation of NPDCCH and NPDSCH for scheduling Msg3 retransmission and Msg4, thereby improving downlink resource efficiency.
  • An embodiment of the present application further provides a device for implementing any one of the foregoing methods.
  • an apparatus is provided, which includes a unit (or means) for implementing each step performed by a terminal in any one of the above methods.
  • another apparatus is provided, which includes a unit (or means) for implementing each step performed by a network device in any one of the methods.
  • FIG. 11 shows a schematic block diagram of an apparatus 800 for measuring channel quality according to an embodiment of the present application.
  • the apparatus 800 for measuring channel quality may include a transceiver unit 810 and a processing unit 820.
  • the device for measuring channel quality may be a terminal device in the foregoing method 300 to method 700 or a chip configured in the terminal device.
  • the transceiver unit 810 is configured to receive configuration information sent by a network device
  • a processing unit 820 configured to determine a first downlink carrier from the downlink carrier set
  • the transceiver unit 810 is further configured to send a random access process message three Msg3 to the network device.
  • the Msg3 includes first information, the first information includes information used to indicate a channel quality of the first downlink carrier, and the channel quality. It is used to provide the network device with information of a first repetition level, where the first repetition level is a minimum repetition level required for transmission of a downlink channel according to a preset transmission parameter to satisfy a preset block error rate.
  • the transceiver unit 810 is further configured to: before sending Msg3 to the network device,
  • the Msg3 also includes second information, and the second information includes information used to indicate channel quality of the second downlink carrier.
  • the second downlink carrier is used to carry the Msg2, the first downlink carrier, and the second downlink.
  • the carriers are different downlink carriers.
  • the processing unit 820 is configured to determine a first downlink carrier from the downlink carrier set, including:
  • the first downlink carrier is one or more downlink carriers with the best channel quality among the one or more downlink carriers.
  • the apparatus 800 for measuring channel quality may correspond to a terminal device in the method 400 for measuring channel quality according to an embodiment of the present application, and the apparatus 800 for measuring channel quality may include a terminal device for performing the method 400 for measuring channel quality The unit of the executed method.
  • each unit in the apparatus 800 for measuring channel quality and the other operations and / or functions described above are respectively to implement a corresponding process of a method 400 for measuring channel quality.
  • a specific process of each unit performing the foregoing corresponding steps please refer to the foregoing description of the method embodiments in conjunction with FIG. 6 and FIG. 7. For brevity, details are not described herein again.
  • the processing unit 820 is configured to determine a first downlink carrier from the downlink carrier set, including:
  • the processing unit 820 is configured to determine the first downlink carrier from the downlink carrier set according to a preset rule, including:
  • the apparatus 800 for measuring channel quality may correspond to a terminal device in the method 600 for measuring channel quality according to the embodiment of the present application, and the apparatus 800 for measuring channel quality may include a terminal device for performing the method 600 for measuring channel quality
  • the unit of the executed method each unit in the apparatus 800 for measuring channel quality and the other operations and / or functions described above are respectively to implement a corresponding process of a method 600 for measuring channel quality.
  • the first information further includes information for indicating a position of the first downlink carrier.
  • the transceiver unit 810 is further configured to receive third information sent by the network device, where the third information is used to indicate the first downlink carrier;
  • the processing unit 820 is configured to determine a first downlink carrier from the downlink carrier set, including:
  • the apparatus 800 for measuring channel quality may correspond to a terminal device in the method 500 for measuring channel quality according to the embodiment of the present application, and the apparatus 800 for measuring channel quality may include a terminal device for performing the method 500 for measuring channel quality
  • the unit of the executed method each unit in the apparatus 800 for measuring channel quality and the other operations and / or functions described above are respectively to implement a corresponding process of a method 500 for measuring channel quality.
  • each unit performing the foregoing corresponding steps please refer to the description of the method embodiment in conjunction with FIG. 8 described above. For brevity, details are not described herein again.
  • the transceiver unit 810 is configured to receive configuration information sent by the network device, where the configuration information is used to configure a downlink carrier set;
  • the processing unit 820 is configured to determine a plurality of downlink carriers from the downlink carrier set;
  • the processing unit 820 is further configured to measure each downlink carrier of the multiple downlink carriers, obtain a channel quality of each downlink carrier, and determine an average value of the channel qualities of the multiple downlink carriers.
  • the transceiver unit 810 is further configured to send a random access process message three Msg3 to the network device, and the Msg3 includes the average value.
  • the apparatus 800 for measuring channel quality may correspond to a terminal device in the method 700 for measuring channel quality according to an embodiment of the present application, and the apparatus 800 for measuring channel quality may include a terminal device for performing the method 700 for measuring channel quality The unit of the executed method.
  • each unit in the apparatus 800 for measuring channel quality and the other operations and / or functions described above are respectively to implement a corresponding process of a method 700 for measuring channel quality.
  • a specific process of each unit performing the foregoing corresponding steps please refer to the description of the method embodiment in conjunction with FIG. 10 described above. For brevity, details are not described herein again.
  • FIG. 12 shows a schematic block diagram of an apparatus 900 for measuring channel quality according to an embodiment of the present application.
  • the apparatus 900 for measuring channel quality may include a processing unit 910 and a transceiver unit 920.
  • the device for measuring channel quality may be the network device in the above method 300 to method 700 or a chip configured in the network device.
  • the processing unit 910 is configured to determine configuration information, where the configuration information is used to configure a downlink carrier set, where the downlink carrier set includes a first downlink carrier;
  • the transceiver unit 920 is configured to send configuration information to the terminal device
  • the transceiver unit 920 is further configured to receive a random access process message three Msg3 sent by the terminal device, where the Msg3 includes first information, and the first information includes information used to indicate a channel quality of the first downlink carrier.
  • the channel quality is used to provide the device with information on a first repetition level, where the first repetition level is a minimum repetition level required for transmission of a downlink channel according to a preset transmission parameter to meet a preset block error rate.
  • the transceiver unit 920 is further configured to: before receiving Msg3 sent by the terminal device,
  • the Msg3 also includes second information, and the second information includes information used to indicate channel quality of the second downlink carrier.
  • the second downlink carrier is used to carry the Msg2, the first downlink carrier, and the second downlink.
  • the carriers are different downlink carriers.
  • the first downlink carrier is one or more downlink carriers with a best channel quality for the terminal device among one or more carriers in the downlink carrier set.
  • the transceiver unit 920 is further configured to send sixth information to the terminal device after sending Msg3, where the sixth information is used to indicate a position of the first downlink carrier.
  • the apparatus 900 for measuring channel quality may correspond to the network device in the method 400 for measuring channel quality according to an embodiment of the present application, and the apparatus 900 for measuring channel quality may include a network device for performing the method 400 for measuring channel quality The unit of the executed method.
  • each unit in the apparatus 900 for measuring channel quality and the other operations and / or functions described above are respectively to implement a corresponding process of a method 400 for measuring channel quality.
  • a specific process of each unit performing the foregoing corresponding steps please refer to the foregoing description of the method embodiments in conjunction with FIG. 6 and FIG. 7. For brevity, details are not described herein again.
  • the first downlink carrier is determined by the terminal device according to a preset rule.
  • the apparatus 900 for measuring channel quality may correspond to a network device in a method 600 for measuring channel quality according to an embodiment of the present application, and the apparatus 900 for measuring channel quality may include a network device for performing the method 600 for measuring channel quality The unit of the executed method.
  • each unit in the apparatus 900 for measuring channel quality and the other operations and / or functions described above are respectively to implement a corresponding process of a method 600 for measuring channel quality.
  • the first information further includes information for indicating a position of the first downlink carrier.
  • the transceiver unit 920 is further configured to send third information to the terminal device before sending Msg3, and the third information is used to indicate the first downlink carrier.
  • processing unit 910 is further configured to:
  • the apparatus 900 for measuring channel quality may correspond to a network device in a method 500 for measuring channel quality according to an embodiment of the present application, and the apparatus 900 for measuring channel quality may include a network device for performing the method 500 for measuring channel quality The unit of the executed method.
  • each unit in the apparatus 900 for measuring channel quality and the other operations and / or functions mentioned above are respectively to implement a corresponding process of a method 500 for measuring channel quality.
  • the specific process of each unit performing the foregoing corresponding steps please refer to the description of the method embodiment in conjunction with FIG. 8 described above. For brevity, details are not described herein again.
  • the transceiver unit 920 is configured to receive a random access process message three Msg3 sent by the terminal device.
  • the Msg3 includes an average value of one or more downlink carriers, and the one or more downlink carriers are transmitted by the terminal device from The downlink carrier set is determined.
  • the apparatus 900 for measuring channel quality may correspond to a network device in a method 700 for measuring channel quality according to an embodiment of the present application, and the apparatus 900 for measuring channel quality may include a network device for performing the method 700 for measuring channel quality The unit of the executed method.
  • each unit in the apparatus 900 for measuring channel quality and the other operations and / or functions described above are respectively to implement a corresponding process of a method 700 for measuring channel quality.
  • a specific process of each unit performing the foregoing corresponding steps please refer to the description of the method embodiment in conjunction with FIG. 10 described above. For brevity, details are not described herein again.
  • FIG. 13 shows a schematic structural diagram of a terminal device provided in an embodiment of the present application, which may be the terminal device in the foregoing embodiment, and is configured to implement the operation of the terminal device in the foregoing embodiment.
  • the terminal device includes: an antenna 1010, a radio frequency portion 1020, and a signal processing portion 1030.
  • the antenna 1010 is connected to the radio frequency portion 1020.
  • the radio frequency section 1020 receives the information sent by the network device through the antenna 1010, and sends the information sent by the network device to the signal processing section 1030 for processing.
  • the signal processing section 1030 processes the information of the terminal and sends it to the radio frequency section 1020.
  • the radio frequency section 1020 processes the information of the terminal device and sends it to the network device via the antenna 1010.
  • the signal processing section 1030 may include a modulation and demodulation subsystem for processing the communication protocol layers of the data; it may also include a central processing subsystem for processing the terminal operating system and the application layer; in addition, it may also include Other subsystems, such as multimedia subsystem, peripheral subsystem, etc. Among them, the multimedia subsystem is used to control the terminal device camera, screen display, etc., and the peripheral subsystem is used to achieve connection with other devices.
  • the modem subsystem can be a separately set chip.
  • the above device for a terminal may be located in the modem subsystem.
  • the modem subsystem may include one or more processing elements 1031, for example, including a main control CPU and other integrated circuits.
  • the modulation and demodulation subsystem may further include a storage element 1032 and an interface circuit 1033.
  • the storage element 1032 is used to store data and programs, but the program for executing the method executed by the terminal in the above method may not be stored in the storage element 1032, but stored in a memory other than the modem subsystem, and used When the modem subsystem is loaded and used.
  • the interface circuit 1033 is used to communicate with other subsystems.
  • the above device for a terminal may be located in a modulation and demodulation subsystem.
  • the modulation and demodulation subsystem may be implemented by a chip.
  • the chip includes at least one processing element and an interface circuit, and the processing element is configured to execute any one of the above terminal devices.
  • the interface circuit is used to communicate with other devices.
  • a unit of the terminal device that implements each step in the above method may be implemented in the form of a processing element scheduler.
  • a device for a terminal device includes a processing element and a storage element, and the processing element calls a program stored by the storage element to The method performed by the terminal device in the foregoing method embodiments is performed.
  • the storage element may be a storage element whose processing element is on the same chip, that is, an on-chip storage element.
  • the program for executing the method executed by the terminal device in the above method may be a storage element on a different chip from the processing element, that is, an off-chip storage element.
  • the processing element calls or loads the program from the off-chip storage element to the on-chip storage element to call and execute the method executed by the terminal in the foregoing method embodiments.
  • the unit for the terminal to implement each step in the above method may be configured as one or more processing elements, and these processing elements are arranged on the modulation and demodulation subsystem.
  • the processing elements here may be integrated circuits, such as : One or more application-specific integrated circuits (ASICs), or one or more digital signal processors (DSPs), or one or more ready-made programmable gate arrays (field programmable gates) array, FPGA), or a combination of these types of integrated circuits. These integrated circuits can be integrated together to form a chip.
  • the unit that implements each step in the above method in the terminal may be integrated together and implemented in the form of a system-on-a-chip (SOC), which is used to implement the above method.
  • SOC system-on-a-chip
  • At least one processing element and storage element may be integrated in the chip, and the method executed by the above terminal may be implemented by the processing element calling the stored program of the storage element; or, at least one integrated circuit may be integrated in the chip to implement the above terminal execution.
  • the functions of some units are implemented in the form of a program called by a processing element, and the functions of some units are implemented in the form of an integrated circuit.
  • the above apparatus for a terminal device may include at least one processing element and an interface circuit, where at least one processing element is configured to execute any method performed by the terminal device provided by the foregoing method embodiment.
  • the processing element may execute a part or all of the steps executed by the terminal in a manner of calling the program stored in the storage element in a first manner; or a method of integrating the logic of the hardware in the processor element with the instruction in a second manner: Some or all of the steps performed by the terminal device are performed in a manner; of course, some or all of the steps performed by the terminal may also be performed in combination with the first and second methods.
  • the processing elements here are the same as described above, and may be general-purpose processors, such as a CPU, or one or more integrated circuits configured to implement the above methods, such as: one or more ASICs, or one or more micro-processing Processor DSP, or one or more FPGAs, or a combination of at least two of these integrated circuit forms.
  • general-purpose processors such as a CPU
  • integrated circuits configured to implement the above methods, such as: one or more ASICs, or one or more micro-processing Processor DSP, or one or more FPGAs, or a combination of at least two of these integrated circuit forms.
  • a storage element may be a single memory or a collective term for multiple storage elements.
  • FIG. 14 is a schematic structural diagram of a network device according to an embodiment of the present application, which may be the network device in the foregoing embodiment, and is configured to implement the operation of the network device in the foregoing embodiment.
  • the network device includes: an antenna 1101, a radio frequency device 1102, and a baseband device 1103.
  • the antenna 1101 is connected to a radio frequency device 1102.
  • the radio frequency device 1102 receives the information sent by the terminal device through the antenna 1101, and sends the information sent by the terminal device to the baseband device 1103 for processing.
  • the baseband device 1103 processes the information of the terminal and sends it to the radio frequency device 1102.
  • the radio frequency device 1102 processes the information of the terminal device and sends it to the terminal via the antenna 1101.
  • the baseband device 1103 may include one or more processing elements 11031, for example, including a main control CPU and other integrated circuits.
  • the baseband device 1103 may further include a storage element 11032 and an interface 11033.
  • the storage element 11032 is used to store programs and data.
  • the interface 11033 is used to exchange information with the radio frequency device 1102.
  • the interface is, for example, a common public wireless interface (common public radio interface). , CPRI).
  • the above device for a network device may be located in the baseband device 1103.
  • the above device for a network device may be a chip on the baseband device 1103.
  • the chip includes at least one processing element and an interface circuit, where the processing element is used to execute the above network.
  • the device executes each step of any method, and the interface circuit is used to communicate with other devices.
  • the unit that the network device implements each step in the above method may be implemented in the form of a processing element scheduler.
  • an apparatus for a network device includes a processing element and a storage element, and the processing element calls a program stored by the storage element to The method performed by the network device in the foregoing method embodiment is performed.
  • the storage element may be a storage element on the same chip as the processing element, that is, an on-chip storage element, or a storage element on a different chip from the processing element, that is, an off-chip storage element.
  • the unit that the network device implements each step in the above method may be configured as one or more processing elements, which are disposed on the baseband device.
  • the processing element here may be an integrated circuit, for example: an Or multiple ASICs, or one or more DSPs, or one or more FPGAs, or a combination of these types of integrated circuits. These integrated circuits can be integrated together to form a chip.
  • a unit that implements each step in the above method of a network device may be integrated together and implemented in the form of an SOC.
  • a baseband device includes the SOC chip to implement the above method.
  • At least one processing element and storage element may be integrated in the chip, and the method executed by the above network device may be implemented by the processing element calling a stored program of the storage element; or, at least one integrated circuit may be integrated in the chip to implement the above network
  • the method executed by the device or, in combination with the above implementation manner, the functions of some units are implemented in the form of a program called by a processing element, and the functions of some units are implemented in the form of an integrated circuit.
  • the above apparatus for a network device may include at least one processing element and an interface circuit, where at least one processing element is configured to execute any method performed by the network device provided by the foregoing method embodiment.
  • the processing element can execute some or all of the steps performed by the network device in the first way: by calling a program stored by the storage element; or in the second way: by using the integrated logic circuit of the hardware in the processor element to combine instructions
  • Some or all of the steps performed by the network device are performed in the manner described above; of course, some or all of the steps performed by the above network device may also be performed in combination with the first and second methods.
  • the processing elements here are the same as described above, and may be general-purpose processors, such as a CPU, or one or more integrated circuits configured to implement the above methods, such as: one or more ASICs, or one or more micro-processing Processor DSP, or one or more FPGAs, or a combination of at least two of these integrated circuit forms.
  • general-purpose processors such as a CPU
  • integrated circuits configured to implement the above methods, such as: one or more ASICs, or one or more micro-processing Processor DSP, or one or more FPGAs, or a combination of at least two of these integrated circuit forms.
  • a storage element may be a single memory or a collective term for multiple storage elements.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the unit is only a logical function division.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, which may be electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objective of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each of the units may exist separately physically, or two or more units may be integrated into one unit.
  • the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of this application is essentially a part that contributes to the existing technology or a part of the technical solution can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in the embodiments of the present application.
  • the aforementioned storage media include: U disks, mobile hard disks, read-only memories (ROMs), random access memories (RAMs), magnetic disks or compact discs and other media that can store program codes .

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Abstract

本申请提供了一种测量信道质量的方法和装置，该方法包括：该方法包括：网络设备向终端设备发送配置信息，该配置信息用于配置下行载波集合；该终端设备从该下行载波集合中确定第一下行载波；该终端设备向该网络设备发送随机接入过程消息三Msg3，该随机接入过程消息三包括第一信息，该第一信息包括用于指示该第一下行载波的信道质量的信息,该信道质量用于向该网络设备提供第一重复等级的信息，该第一重复等级为下行信道按照预设传输参数所进行的传输满足预设的误块率时所需的最小重复等级。本申请实施例的测量信道质量的方法，有助于网络设备进行更合理的资源调度。

Description

测量信道质量的方法和装置 技术领域
本申请涉及通信领域，并且更具体地，涉及一种测量信道质量的方法和装置。
背景技术
机器类型通信(machine type communication，MTC)又称为机器间通信(machine to machine，M2M)，或者物联网(internet of things，IoT)，将是未来通信领域的一项重要应用。未来的物联网通信的主要可能涵盖智能抄表、医疗检测监控、物流检测、工业检测监控、汽车联网、智能社区以及可穿戴设备通信等等。围绕MTC通信构造的物联网产业被认为是继计算机、互联网和移动通信网之后的第四次浪潮，是未来网络的发展方向。预计到2022年，MTC设备的连接数量将达到500亿。
目前，在IoT系统中支持网络设备通过无线资源控制(radio resource control，RRC)信令配置一个下行载波给终端设备，终端设备可以在这个载波上进行窄带物理下行控制信道(narrowband physical downlink control channel，NPDCCH)和窄带物理下行共享信道(narrowband physical downlink shared channel，NPDSCH)的接收。当前的配置方式容易导致各个下行载波的负载不均衡。
发明内容
有鉴于此，本申请提供一种测量信道质量的方法，使得网络设备能够进行更合理的资源调度。
第一方面，提供了一种测量信道质量的方法，该方法包括：终端设备接收网络设备发送的配置信息，该配置信息用于配置下行载波集合；该终端设备从该下行载波集合中确定第一下行载波；该终端设备向该网络设备发送随机接入过程消息三Msg3，该Msg3包括第一信息，该第一信息包括用于指示该第一下行载波的信道质量的信息,该信道质量用于向该网络设备提供第一重复等级的信息，所述第一重复等级为下行信道按照预设传输参数所进行的传输满足预设的误块率时所需的最小重复等级。
在一些可能的实现方式中，该配置信息承载于系统消息中，该系统消息可以为SIB22-NB或者其它系统消息。
在一些可能的实现方式中，该下行载波集合可以包括SIB22-NB中配置的用于随机接入信道RACH的下行载波或者用于寻呼的下行载波。
在一些可能的实现方式中，该下行载波集合可以包括SIB22-NB中配置的用于随机接入信道RACH的下行载波或者用于寻呼的下行载波的子集。
在一些可能的实现方式中，该下行载波集合可以包括SIB22-NB中配置的和RACH相关联的下行载波。
在一些可能的实现方式中，该下行载波集合可以包括网络设备配置的用于测量的下行 载波。
在一些可能的实现方式中，该下行载波集合可以包括锚点(anchor)载波。
在一些可能的实现方式中，该第一下行载波包括该下行载波集合中一个或者多个下行载波。
在一些可能的实现方式中，该下行信道为下行控制信道或下行数据信道。
在一些可能的实现方式中，该下行信道为承载调度Msg2或者承载Msg2或者调度Msg3重传或者承载Msg4的下行信道。
在一些可能的方式中，该下行信道为承载Msg4之后数据或者信令的下行信道。
本申请实施例中，终端设备在随机接入过程中通过在Msg3中携带下行载波集合中一个或者多个下行载波的信道质量的信息，网络设备可以基于该下行载波的信道质量优化这个载波上的资源分配，从而有助于提高下行资源效率。
结合第一方面，在第一方面的某些可能的实现方式中，该终端设备向该网络设备发送Msg3之前，该方法还包括：该终端设备向网络设备发送随机接入过程消息一Msg1；该终端设备接收该网络设备发送的随机接入过程消息二Msg2；其中，该Msg3还包括第二信息，该第二信息包括用于指示第二下行载波的信道质量的信息，该第二下行载波用于承载该Msg2，该第一下行载波和该第二下行载波为不同的下行载波。
本申请实施例中，终端设备在随机接入过程中通过在Msg3中携带承载Msg2的下行载波的信道质量的信息，有助于网络设备优化调度Msg3重传的下行信道和Msg4的下行信道的资源分配，从而有助于提高下行资源效率。
结合第一方面，在第一方面的某些可能的实现方式中，该终端设备从该下行载波集合中确定第一下行载波，包括：该终端设备从该下行载波集合中确定一个或者多个载波；该终端设备测量该一个或者多个下行载波中每个下行载波的信道质量；该终端设备根据该每个下行载波的信道质量，确定该第一下行载波；该第一下行载波为该一个或者多个下行载波中信道质量最好的一个或多个下行载波。
终端设备在Msg3中上报下行测量载波集合内信道质量最好的一个或者多个下行载波的载波位置，以及该载波对应的下行信道质量。网络设备可以基于这个结果，在Msg4中给终端设备分配信道质量最好的下行载波，实现频选调度，同时基于这个载波的下行信道质量，可以优化这个载波上NPDCCH和NPDSCH的资源分配，从而提高下行资源效率。
结合第一方面，在第一方面的某些可能的实现方式中，该终端设备从该下行载波集合中确定第一下行载波，包括：该终端设备根据预设规则，从该下行载波集合中确定该第一下行载波。
结合第一方面，在第一方面的某些可能的实现方式中，该终端设备根据预设规则，从该下行载波集合中确定该第一下行载波，包括：该终端设备将该下行载波集合中的寻呼paging载波确定为该第一下行载波；或者，该终端设备根据该终端设备的标识信息，从该下行载波集合中确定该第一下行载波。
本申请实施例中，终端设备上报该终端设备根据预设规则确定的下行载波的信道质量，网络设备根据所有终端设备上报的信道质量，确定每个载波的负载情况，比如根据统计数据，下行信道质量较好的载波负载较轻，下行信道质量较差的载波负载较重，有助于网络设备实现负载均衡，比如将负载较重的载波的部分业务分配到负载较轻的载波上。
结合第一方面，在第一方面的某些可能的实现方式中，该第一信息还包括用于指示该第一下行载波的位置的信息。
结合第一方面，在第一方面的某些可能的实现方式中，该终端设备从该下行载波集合中确定第一下行载波，包括：该终端设备接收该网络设备发送的第三信息，该第三信息用于指示该第一下行载波；该终端设备根据该第三信息从该下行载波集合中确定该第一下行载波。
在一些可能的实现方式中，该第三信息为下行控制信息DCI。
在一些可能的实现方式中，该DCI为NPDCCH order对应的DCI。
本申请实施例中，终端设备上报网络设备指定的下行载波的信道质量，网络设备根据所有终端设备上报的信道质量，确定每个载波的负载情况，比如根据统计数据，下行信道质量较好的载波负载较轻，下行信道质量较差的载波负载较重，有助于网络设备实现负载均衡，比如将负载较重的载波的部分业务分配到负载较轻的载波上。
在一些可能的实现方式中，该终端设备向该网络设备发送Msg3之前，该方法还包括：该终端设备接收该网络设备发送指示信息，该指示信息用于指示是否允许该终端设备上报第二下行载波的信道质量的信息；和/或，该指示信息用于指示是否允许该终端设备上报该第一下行载波的信道质量的信息；和/或，该指示信息用于指示是否允许该终端设备上报该第一下行载波的位置的信息。
在一些可能的实现方式中，该终端设备向该网络设备发送Msg3之前，该方法还包括：该终端设备向该网络设备发送该终端设备的能力信息，该能力信息用于指示该终端设备是否具有上报第二下行载波的信道质量的信息的能力；和/或，该指示信息用于指示该终端设备具有上报该第一下行载波的信道质量的信息的能力；和/或，该指示信息用于指示该终端设备是够具有上报该第一下行载波的位置的信息的能力。
在一些可能的实现方式中，第一信息中可以包括用于指示第一下行载波的信道质量的信息，第二信息可以包括用于指示Msg2所在下行载波的信道质量相对于第一下行载波的信道质量的偏差的信息。
在一些可能的实现方式中，第二信息可以包括用于指示Msg2所在下行载波的信道质量的信息，第一信息中可以包括用于指示第一下行载波的信道质量相对于Msg2所在下行载波的信道质量的偏差的信息。
第二方面，提供了一种测量信道质量的方法，该方法包括：网络设备确定配置信息，该配置信息用于配置下行载波集合，该下行载波集合包括第一下行载波；该网络设备向终端设备发送该配置信息；该网络设备接收该终端设备发送的随机接入过程消息三Msg3，该Msg3包括第一信息，该第一信息包括用于指示该第一下行载波的信道质量的信息,该信道质量用于向该网络设备提供第一重复等级的信息，该第一重复等级为下行信道按照预设传输参数所进行的传输满足预设的误块率时所需的最小重复等级。
结合第二方面，在第二方面的某些可能的实现方式中，该网络设备接收该终端设备发送的Msg3之前，该方法还包括：该网络设备接收该终端设备发送的随机接入过程消息一Msg1；该网络设备向该终端设备发送随机接入过程消息二Msg2；其中，该Msg3还包括第二信息，该第二信息包括用于指示第二下行载波的信道质量的信息，该第二下行载波用于承载该Msg2，该第一下行载波和该第二下行载波为不同的下行载波。
结合第二方面，在第二方面的某些可能的实现方式中，该第一下行载波为下行载波集合的一个或者多个载波中对于该终端设备来说信道质量最好的一个或多个下行载波。
结合第二方面，在第二方面的某些可能的实现方式中，该网络设备接收该终端设备发送的Msg3之后，该方法还包括：该网络设备向该终端设备发送第六信息，该第六信息用于指示该第一下行载波。
结合第二方面，在第二方面的某些可能的实现方式中，该第一下行载波由该终端设备根据预设规则确定。
结合第二方面，在第二方面的某些可能的实现方式中，该第一信息还包括用于指示该第一下行载波的位置的信息。
结合第二方面，在第二方面的某些可能的实现方式中，该网络设备接收该终端设备发送的Msg3之前，该方法还包括：该网络设备向该终端设备发送第三信息，该第三信息用于指示该第一下行载波。
结合第二方面，在第二方面的某些可能的实现方式中，其特征在于，该方法还包括：该网络设备根据该第一下行载波的信道质量，确定该第一下行载波的负载；该网络设备调整该第一下行载波的负载。
一种可能的实现方式中，第一信息中可以包括用于指示第一下行载波的信道质量的信息，第二信息可以包括用于指示Msg2所在下行载波的信道质量相对于第一下行载波的信道质量的偏差的信息，该方法还包括：
该网络设备根据第二信息中的该偏差和第一信息中的信道质量可以确定Msg2所在下行载波的信道质量。
另一种可能的实现方式中，第二信息可以包括用于指示Msg2所在下行载波的信道质量的信息，第一信息中可以包括用于指示第一下行载波的信道质量相对于Msg2所在下行载波的信道质量的偏差的信息，该方法还包括：
该网络设备根据第一信息中的该偏差和第二信息中的信道质量可以确定第一下行载波的信道质量。
第三方面，提供了一种测量信道质量的方法，该方法包括：终端设备接收网络设备发送的配置信息，该配置信息用于配置下行载波集合；该终端设备对下行载波集合中的多个下行载波进行测量，得到每个下行载波的信道质量；该终端设备确定该多个下行载波的信道质量的平均值；该终端设备向该网络设备发送随机接入过程消息三Msg3，该Msg3包括该多个下行载波的信道质量的平均值。
第四方面，提供了一种测量信道质量的方法，该方法包括：网络设备向终端设备发送配置信息，该配置信息用于配置下行载波集合；该网络设备接收该终端设备发送的随机接入过程消息三Msg3，该Msg3包括多个下行载波的信道质量的平均值，该下行载波集合包括该多个下行载波。
第五方面，提供了一种测量信道质量的装置，用于执行上述第一方面或者第三方面，以及第一方面或者第三方面任一可能的实现方式中的方法。具体地，该测量信道质量的装置可以包括用于执行第一方面或者第三方面，以及第一方面或者第三方面任一可能的实现方式中的方法的单元。
第六方面，提供了一种测量信道质量的装置，用于执行上述第二方面或者第四方面， 以及第二方面或者第四方面任一可能的实现方式中的方法。具体地，该测量信道质量的装置可以包括用于执行第二方面或者第四方面，以及第二方面或者第四方面任一可能的实现方式中的方法的单元。
第七方面，提供了一种测量信道质量的装置，该装置可以为上述方法设计中的终端设备，或者为设置在终端设备中的芯片。该装置包括：处理器，与存储器耦合，可用于执行存储器中的指令，以实现上述第一方面或者第三方面，以及第一方面或者第三方面任一可能的实现方式中终端设备所执行的方法。可选地，该装置还包括存储器。可选地，该装置还包括通信接口，处理器与通信接口耦合。
当该装置为终端设备时，该通信接口可以是收发器，或，输入/输出接口。
当该装置为配置于终端设备中的芯片时，该通信接口可以是输入/输出接口。
可选地，该收发器可以为收发电路。可选地，该输入/输出接口可以为输入/输出电路。
第八方面，提供一种测量信道质量的装置，该装置可以为上述方法设计中的网络设备或者为设置在网络设备中的芯片。该装置包括：处理器，与存储器耦合，可用于执行存储器中的指令，以实现上述第二方面或者第四方面，以及第二方面或者第四方面任一可能的实现方式中网络设备所执行的方法。可选地，该装置还包括存储器。可选地，该装置还包括通信接口，处理器与通信接口耦合。
当该装置为网络设备时，该通信接口可以是收发器，或，输入/输出接口。
当该装置为配置于网络设备中的芯片时，该通信接口可以是输入/输出接口。
可选地，该收发器可以为收发电路。可选地，该输入/输出接口可以为输入/输出电路。
第九方面，提供了一种程序，该程序在被处理器执行时，用于执行第一方面至第四方面提供的方法。
第十方面，提供了一种程序产品，所述程序产品包括：程序代码，当所述程序代码被装置(例如，网络设备或者终端设备)的通信单元、处理单元或收发器、处理器运行时，使得该装置执行上述第一方面至第四方面及其可能的实施方式中的任一方法。
第十一方面，提供了一种计算机可读介质，所述计算机可读介质存储有程序，所述程序使得装置(例如，网络设备或者终端设备)执行上述第一方面至第四方面及其可能的实施方式中的任一方法。
附图说明
图1是本申请实施例提供技术方案的应用场景的示意图。
图2是本申请实施例提供的一种网络架构的示意图。
图3是本申请实施例提供的另一种网络架构的示意图。
图4是本申请实施例提供的终端设备与网络设备通过四步完成随机接入的示意性流程图。
图5是本申请实施例提供的测量信道质量的方法的示意性流程图。
图6是本申请实施例提供的测量信道质量的方法的另一示意性流程图。
图7是本申请实施例提供的测量信道质量的方法的另一示意性流程图。
图8是本申请实施例提供的测量信道质量的方法的另一示意性流程图。
图9是本申请实施例提供的测量信道质量的方法的另一示意性流程图。
图10是本申请实施例提供的测量信道质量的方法的另一示意性流程图。
图11是本申请实施例提供的测量信道质量的装置的示意性框图。
图12是本申请实施例提供的测量信道质量的装置的另一示意性框图。
图13是本申请实施例提供的终端设备的结构示意图。
图14是本申请实施例提供的网络设备的结构示意图。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。
本申请实施例的技术方案可以应用于各种通信系统，例如：全球移动通信(global system for mobile communications，GSM)系统、码分多址(code division multiple access，CDMA)系统、宽带码分多址(wideband code division multiple access，WCDMA)系统、通用分组无线业务(general packet radio service，GPRS)、长期演进(long term evolution，LTE)系统、LTE频分双工(frequency division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)、通用移动通信系统(universal mobile telecommunication system，UMTS)、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)通信系统、未来的第五代(5th generation，5G)系统或新无线(new radio，NR)等。
本申请实施例中的终端设备可以指用户设备、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。终端设备还可以是蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，未来5G网络中的终端设备或者未来演进的公用陆地移动通信网络(public land mobile network，PLMN)中的终端设备等，本申请实施例对此并不限定。
本申请实施例中的网络设备可以是用于与终端设备通信的设备，该网络设备可以是全球移动通信(global system for mobile communications，GSM)系统或码分多址(code division multiple access，CDMA)中的基站(base transceiver station，BTS)，也可以是宽带码分多址(wideband code division multiple access，WCDMA)系统中的基站(NodeB，NB)，还可以是LTE系统中的演进型基站(evoled NodeB，eNB或eNodeB)，还可以是云无线接入网络(cloud radio access network，CRAN)场景下的无线控制器，或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备以及未来5G网络中的网络设备或者未来演进的PLMN网络中的网络设备等，本申请实施例并不限定。
在本申请实施例中，终端设备或网络设备包括硬件层、运行在硬件层之上的操作系统层，以及运行在操作系统层上的应用层。该硬件层包括中央处理器(central processing unit，CPU)、内存管理单元(memory management unit，MMU)和内存(也称为主存)等硬件。该操作系统可以是任意一种或多种通过进程(process)实现业务处理的计算机操作系统，例如，Linux操作系统、Unix操作系统、Android操作系统、iOS操作系统或windows操作系统等。该应用层包含浏览器、通讯录、文字处理软件、即时通信软件等应用。并且，本申请实施例并未对本申请实施例提供的方法的执行主体的具体结构特别限定，只要能够 通过运行记录有本申请实施例的提供的方法的代码的程序，以根据本申请实施例提供的方法进行通信即可，例如，本申请实施例提供的方法的执行主体可以是终端设备或网络设备，或者，是终端设备或网络设备中能够调用程序并执行程序的功能模块。
另外，本申请的各个方面或特征可以实现成方法、装置或使用标准编程和/或工程技术的制品。本申请中使用的术语“制品”涵盖可从任何计算机可读器件、载体或介质访问的计算机程序。例如，计算机可读介质可以包括，但不限于:磁存储器件(例如，硬盘、软盘或磁带等)，光盘(例如，压缩盘(compact disc，CD)、数字通用盘(digital versatile disc，DVD)等)，智能卡和闪存器件(例如，可擦写可编程只读存储器(erasable programmable read-only memory，EPROM)、卡、棒或钥匙驱动器等)。另外，本文描述的各种存储介质可代表用于存储信息的一个或多个设备和/或其它机器可读介质。术语“机器可读介质”可包括但不限于，无线信道和能够存储、包含和/或承载指令和/或数据的各种其它介质。
图1是本申请实施例提供技术方案的应用场景的示意图，如图1所示，网络设备110和终端设备120～终端设备170组成了一个通信系统，在该通信系统中，网络设备110可以发送下行信息给终端设备120～终端设备170，终端设备120～终端设备170也可以发送上行信息给网络设备110。此外，终端设备150～终端设备170也可以组成一个通信系统，在该通信系统中，终端设备160可以发送信息给终端设备150和终端设备170，终端设备150和终端设备170也可以发送信息给终端设备160。
应理解，本申请提供的测量信道质量的方法可适用于无线通信系统，例如，图1中所示的无线通信系统中，处于无线通信系统中的两个通信装置间具有无线通信连接，该两个通信装置中的一个通信装置可对应于图1中所示的终端设备，例如，可以为图1中的终端设备160，也可以为配置于终端设备160中的芯片；该两个通信装置中的另一个通信装置可对应于图1中所示的网络设备，例如，可以为图1中的网络设备110，也可以为配置于网络设备110中的芯片。
图2是本申请实施例提供的一种网络架构的示意图，如图2所示，该网络架构包括核心网(CN)设备和无线接入网(radio access network，RAN)设备。其中RAN设备包括基带装置和射频装置，其中基带装置可以由一个节点实现，也可以由多个节点实现，射频装置可以从基带装置拉远独立实现，也可以集成基带装置中，或者部分拉远部分集成在基带装置中。例如，在LTE通信系统中，RAN设备(eNB)包括基带装置和射频装置，其中射频装置可以相对于基带装置拉远布置，例如射频拉远单元(remote radio unit，RRU)相对于BBU拉远布置。
RAN设备和终端设备之间的通信遵循一定的协议层结构。例如控制面协议层结构可以包括无线资源控制(radio resource control，RRC)层、分组数据汇聚层协议(packet data convergence protocol，PDCP)层、无线链路控制(radio link control，RLC)层、媒体接入控制(media access control，MAC)层和物理层等协议层的功能。用户面协议层结构可以包括PDCP层、RLC层、MAC层和物理层等协议层的功能；在一种实现中，PDCP层之上还可以包括业务数据适配(service data adaptation protocol，SDAP)层。
这些协议层的功能可以由一个节点实现，或者可以由多个节点实现；例如，在一种演进结构中，RAN设备可以包括集中单元(centralized unit，CU)和分布单元(distributed unit，DU)，多个DU可以由一个CU集中控制。如图2所示，CU和DU可以根据无线网络的 协议层划分，例如PDCP层及以上协议层的功能设置在CU，PDCP以下的协议层，例如RLC层和MAC层等的功能设置在DU。
RAN设备可以由一个节点实现RRC、PDCP、RLC、MAC等协议层的功能；或者可以由多个节点实现这些协议层的功能；例如，在一种演进结构中，RAN设备可以包括CU和DU，多个DU可以由一个CU集中控制。如图2所示，CU和DU可以根据无线网络的协议层划分，例如PDCP层及以上协议层的功能设置在CU，PDCP以下的协议层，例如RLC层和MAC层等的功能设置在DU。
这种协议层的划分仅仅是一种举例，还可以在其它协议层划分，例如在RLC层划分，将RLC层及以上协议层的功能设置在CU，RLC层以下协议层的功能设置在DU；或者，在某个协议层中划分，例如将RLC层的部分功能和RLC层以上的协议层的功能设置在CU，将RLC层的剩余功能和RLC层以下的协议层的功能设置在DU。此外，也可以按其它方式划分，例如按时延划分，将处理时间需要满足时延要求的功能设置在DU，不需要满足该时延要求的功能设置在CU。
此外，射频装置可以拉远，不放在DU中，也可以集成在DU中，或者部分拉远部分集成在DU中，在此不作任何限制。
请继续参考图3，图3示出了本申请实施例提供的另一种网络架构的示意图，相对于图2所示的架构，还可以将CU的控制面(CP)和用户面(UP)分离，分成不同实体来实现，分别为控制面CU实体(CU-CP实体)和用户面CU实体(CU-UP实体)。
在以上网络架构中，CU产生的信令可以通过DU发送给终端设备，或者终端设备产生的信令可以通过DU发送给CU。DU可以不对该信令进行解析而直接通过协议层封装而透传给终端设备或CU。以下实施例中如果涉及这种信令在DU和终端之间的传输，此时，DU对信令的发送或接收包括这种场景。例如，RRC或PDCP层的信令最终会处理为PHY层的信令发送给终端设备，或者，由接收到的PHY层的信令转变而来。在这种架构下，该RRC或PDCP层的信令，即也可以认为是由DU发送的，或者，由DU和射频发送的。
在以上实施例中CU划分为RAN侧的网络设备，此外，也可以将CU划分为CN侧的网络设备，在此不做限制。
本申请以下实施例中的装置，根据其实现的功能，可以位于终端。当采用以上CU-DU的结构时，网络设备可以为CU节点、或DU节点、或包括CU节点和DU节点的RAN设备。
在介绍本申请实施例的技术方案之前，先介绍和本申请实施例相关的技术术语。
覆盖等级：网络设备会在系统信息中提供不同覆盖等级窄带参考信号接收功率(narrowband reference signal receiving power，NRSRP)阈值，而NRSRP阈值主要是网络设备根据上行干扰情况确定的(如果上行干扰比较大，则NRSRP阈值设置比较大，使得更多的终端设备处于差覆盖等级上，从而选择差覆盖等级下的窄带物理随机接入信道(narrowband physical random access channel，NPRACH)资源，用更多的重复次数来发NPRACH)，只要NRSRP高于所述门限，终端设备发送的随机接入过程消息一(Msg1)的前导序列(preamble)就会按照预设概率被网络设备检测到。
窄带物联网(narrowband internet of things，NB-IoT)系统需要支持很大的覆盖范围， 对处于不同通信环境下的终端设备，网络设备的调度策略将完全不同。例如处于小区中心位置的终端设备无线信道条件较好，网络设备使用较小的功率就能建立可靠的通信链路，并且可以使用大的传输码块、高阶调制、载波绑定等技术手段等快速的完成数据传输；而对处于小区边缘或者地下室的终端设备，无线信道质量较差，网络设备可能需要使用较大的功率才能保持链路，并且在传输数据过程中需要使用小码块、低阶调制、多次重复发送和扩频等技术才能完成数据传输。
为了保证通信的可靠性、节省网络设备的发送功率，需要对不同信道条件的终端设备进行区分，以方便网络设备进行调度。为此NB-IoT系统引入了覆盖等级的概念，处于同一覆盖等级的终端设备的信道传输条件相似，网络设备可以对这类用户采用相似的调度参数，它们占用的控制信令开销也相似。
例如，NB-IoT系统可以划分为3个覆盖等级，离网络设备较近的终端设备覆盖等级为“普通覆盖”，重复次数为不重复；离网络设备较远的终端设备覆盖等级为“边缘覆盖”，重复次数中等；处于地下室等场景的终端设备覆盖等级为“扩展覆盖”，重复次数可能高达几百次甚至上千次。终端设备根据覆盖等级选择合适的传输次数，可以降低不必要的重复，减少功率开销。
图4示出了本申请实施例提供的终端设备与网络设备通过四步完成随机接入的示意性流程图，应理解，图4以NR中的基于竞争(contention based RA，CBRA)为例，该过程包括：
S210，终端设备向网络设备发送随机接入过程消息一(Msg1)。
应理解，该随机接入过程消息一(Msg1)也可以称为随机接入请求消息或者随机接入前导序列(preamble)。
preamble的主要作用是告诉网络设备有一个随机接入请求，并使得网络设备能够估计其余终端设备之间的传输时延，以便网络设备校准上行定时，并将校准信息通过S220中的随机接入过程消息二(Msg2)告知终端设备。
该终端设备可以选择preamble，在物理随机接入信道(physical random access channel，PRACH)传输。网络设备通过系统消息告知终端设备当前小区可用于传输preamble的PRACH的时频资源集合，该终端设备发起随机接入时，还需要选择PRACH资源，从而发送preamble。
可选地，在该终端设备发送Msg1之前，该方法200还包括：
该网络设备向该终端设备发送系统消息，该系统消息包括上行载波和下行载波的配置信息。
典型的Rel-14中引入的非锚点窄带物联网载波(non-anchor narrowband internet of things carrier，non-anchor NB-IoT carrier)用于RACH为例，网络设备可以在窄带系统消息块2(SIB2-NB)中广播锚点载波(anchor carrier)上的窄带物理随机接入信道(narrowband physical random access channel，NPRACH)资源信息，上行(uplink，UL)锚点载波对应的下行(downlink，DL)窄带物联网载波(narrowband internet of things carrier，NB-IoT carrier)为下行锚点载波(downlink anchor carrier，DL anchor carrier)。
在NB-IoT系统中，对于频分双工(frequency division duplex，FDD)，锚点载波指的是终端设备假设有窄带主同步信号(narrowband primary synchronization signal，NPSS)/窄带 辅同步信号(narrowband secondary synchronization signal，NSSS)/窄带物理广播信道(narrowband physical broadcast channel，NPBCH)/窄带系统信息块(system information block-NB，SIB-NB)传输的载波，对于时分双工(time division duplex，TDD)锚点载波指的是终端设备假设有NPSS/NSSS/NPBCH传输的载波。
在NB-IoT系统中，对于FDD，非锚点载波指的是终端设备假设没有NPSS/NSSS/NPBCH/SIB-NB传输的载波，对于TDD，非锚点载波指的是终端设备假设没有NPSS/NSSS/NPBCH传输的载波。
网络设备可以在窄带系统消息块22(NB-SIB22)中广播一系列非锚点载波(non-anchor carrier)的配置信息，包括一系列DL non-anchor carrier和UL non-anchor carrier的配置信息，例如，每个UL non-anchor carrier上都会按照覆盖等级配置NPRACH资源，并且对每个NPRACH资源可能会配置npdcch-carrierIndex-r14这个参数，这个参数用来指示该NPRACH资源的Msg1对应的Msg2、调度Msg3重传的NPDCCH以及调度Msg4的NPDCCH和Msg4传输的下行载波标识信息，其中Msg2和Msg4可以通过NPDSCH承载。
终端设备确定下行载波集合。系统消息(例如，SIB22-NB)中会配置一个下行载波列表，列表中的每一个条目中包括载波的配置信息，该配置信息包括载波中心频点位置，部署模式，参考信号功率配置，有效子帧配置，下行间隔配置等。下行载波可以进行编号，比如列表中的第一个条目的索引是‘1’，第二个条目的索引是‘2’，依次类推。后续可以根据这个索引寻址下行载波。
所述下行载波集合可以是系统消息配置的用于随机接入(RACH)或者寻呼(paging)的下行载波。
例如，系统消息中配置了15个用于随机接入或者寻呼的下行载波，这15个下行载波可以作为下行载波集合。
又例如，下行载波集合是系统消息中配置的和RACH关联的下行载波，即RACH资源配置中指定的用于Msg2，和调度Msg3重传的NPDCCH以及调度Msg4的NPDCCH和Msg4传输的下行载波，其中Msg2和Msg4可以通过NPDSCH承载。如系统消息中配置了15个用于随机接入或者寻呼的下行载波，只有5个下行载波与RACH有关联，则这5个下行载波可以作为下行载波集合。
可选地，该方法200还包括：
该终端设备确定第一上行载波；
该终端设备在该第一上行载波上，向该网络设备发送该Msg1。
具体而言，终端设备可以根据SIB2-NB和SIB22-NB中的配置，按照预设概率选择某个上行载波发送Msg1。
可选地，该终端设备根据覆盖等级，确定该第一上行载波上的第一随机接入信道资源；
该终端设备在该第一随机接入信道资源上，向该网络设备发送Msg1。
具体而言，终端设备还需要在第一上行载波上选择某个PRACH资源来发送Msg1，该终端设备可以通过覆盖等级，确定在第一上行载波的哪个PRACH资源上发送Msg1，通过SIB2或者SIB22中的配置信息，确定被选择的上行PRACH资源对应的下行载波，终端设备从而获知RACH过程中调度Msg2的NPDCCH和Msg2、调度Msg3重传的NPDCCH、调度Msg4的NPDCCH和Msg4均会在所述下行载波上发送，其中Msg2和 Msg4可以通过NPDSCH承载。
下面介绍终端设备确定自己的覆盖等级的过程：
(1)终端设备根据下行NB-IoT载波上发送的窄带参考信号(narrowband reference signal，NRS)测量得到终端设备上测量的载波的NRSRP(所述NRSRP直接反应网络设备到终端设备之间的无线信号的传输损耗)。
(2)终端设备将测量得到的NRSRP和若干个NRSRP阈值比较(NRSRP阈值通过系统消息下发)，根据比较结果判定其覆盖等级。
NB-IoT中系统消息最多能下发2个NRSRP阈值，以下发两个NRSRP阈值(NRSRP threshold 1，NRSRP threshold 2)为例，如果终端设备测量的NRSRP<NRSRP threshold 2，则终端设备处于覆盖等级2(对应扩展覆盖)；否则，如果终端设备测量的NRSRP value<NRSRP threshold 1，则终端设备处于覆盖等级1(对应边缘覆盖)；否则，终端设备处于覆盖等级0(对应普通覆盖)。网络设备根据不同的覆盖等级会配置不同的NPRACH资源，该NPRACH资源包括重复次数(可以取值1，2，4，8，16，32，64，128)，子载波个数，用于随机接入响应的NPDCCH的公共搜索空间(common search space for random access response)的配置信息等。
终端设备根据测量得到的NRSRP，和NRSRP阈值比较得到相应的覆盖等级，在所述覆盖等级对应的NPRACH资源上发送Msg1。对于不同覆盖等级，终端设备会选用不同的NPRACH功控方式和重复次数来发送Msg1，从而保证上行的NPRACH接收的接收性能。
S220，该网络设备向该终端设备发送随机接入过程消息二(Msg2)。
应理解，该随机接入过程消息二(Msg2)也可以称为随机接入响应消息。
具体而言，该网络设备收到该终端设备发送的preamble之后，发送对应的随机接入响应(RA response，RAR)给该终端设备，可以包含传输S230中随机接入过程消息三(Msg3)的时域和频域信息，用于Msg3的调制编码方式，preamble标识，定时提前量(TA)信息，初始的上行授权(uplink grant，UL grant)信息，还可以携带该终端设备的标识信息，对于CBRA，该终端设备收到RAR后，判断RAR中的preamble标识是否与S210中发送的preamble相同，如果相同，则认为RAR接收成功，否则，认为RAR接收失败，该终端设备可以重新触发RA过程。
S230，该终端设备向该网络设备发送随机接入过程消息三(Msg3)。
具体而言，该终端设备根据RAR中指示的UL grant信息在对应的上行传输资源通过物理上行共享信道(physical uplink shared channel，PUSCH)发送数据，可以包含RRC消息，该终端设备的标识信息，例如该终端设备的C-RNTI信息，该终端设备的恢复标识(Resume ID)或者不活跃标识(Inactive RNTI，I-RNTI)，其中所述Resume ID或者I-RNTI由网络设备分配给该终端设备，该终端设备上报所述标识用于网络设备识别该终端设备的身份以及相关配置信息等用途。
对于NB-IoT，该终端设备的标识信息，可以是SAE临时移动用户标识(SAE temporary mobile station identifier，S-TMSI)，或者随机值。
S240，该网络设备向该终端设备发送随机接入过程消息四(Msg4)。
具体而言，由于S230中该终端设备会携带该终端设备的标识信息，因此网络设备在冲突解决机制中，会通过S240中的Msg4携带该终端设备的标识信息以指定冲突消除中 胜出的终端设备，而其他没有在冲突消除中胜出的终端设备将重新发起随机接入。
可以看到目前NB-IoT系统中的覆盖等级，是通过下行NRSRP测量值和网络设备预配置的NRSRP阈值进行比较后，对应到具体的覆盖等级上。网络设备在设置NRSRP阈值时，应该尽量保证上行NPRACH preamble的接收性能，NRSRP较小的用户，可能会选择覆盖等级高的PRACH多次重复发送preamble。
然而，在实际网络部署中，网络设备的上行接收的干扰水平和下行终端设备的干扰水平存在差异。即便对于相同的NRSRP的终端设备来说，由于其所处具体位置的不同，其下行接收的信干噪比(signal to interference plus noise ratio，SINR)也可能存在很大的差异。因此，通过NRSRP测量确定的覆盖等级，不能反映终端设备的下行信道质量和接收性能。
网络设备通常可以按照上行PRACH接收性能来设置覆盖等级判定的NRSRP阈值。终端设备根据此NRSRP阈值确定的覆盖等级能够比较准确地反映了上行的接收情况，但是却很难反映终端设备的下行SINR。因此，网络设备实际上不能确切了解终端的下行覆盖情况，通常只能配置较为保守的NPDCCH搜索空间的最大重复次数或者较为保守地调度下行数据，这样对终端设备的功耗以及系统资源的消耗来说有较大的损失。
此外NB-IoT系统支持通过RRC信令配置一个下行载波给终端设备，由于终端设备不能知道每个载波的下行覆盖情况，以及负载情况(比如轻载或者满载)，网络设备在给终端设备分配下行载波分配下行资源时是盲目的，这样容易导致各个下行载波的负载不均衡，下行传输资源分配不合理。
本申请实施例提供了一种测量信道质量的方法和装置，通过终端设备向网络设备上报下行载波的信道质量，有助于网络设备明确下行载波的负载情况，从而有助于网络设备进行更合理的资源调度。
图5示出了本申请实施例的测量信道质量的方法300的示意性流程图，如图5所示，该方法500包括：
S310，网络设备向终端设备发送配置信息，该终端设备接收该网络设备发送的该配置信息，该配置信息用于配置下行载波集合。
可选地，该下行载波集合中包括一个或者多个下行载波。
可选地，该配置信息承载于系统消息中，该系统消息可以为SIB22-NB或者其它系统消息。
可选地，该下行载波集合可以包括SIB22-NB中配置的用于随机接入信道(random access channel，RACH)的下行载波或者用于寻呼的下行载波。
可选地，该下行载波集合可以包括SIB22-NB中配置的用于RACH的下行载波或者用于寻呼的下行载波的子集，即可以包括SIB22-NB中配置的用于RACH的下行载波或者用于寻呼的下行载波中的一部分下行载波。
可选地，该下行载波集合可以包括SIB22-NB中配置的和RACH相关联的下行载波。
可选地，该下行载波集合可以包括网络设备配置的用于测量的下行载波。
可选地，该下行载波集合可以包括锚点(anchor)载波。
S320，该终端设备从该下行载波集合中确定第一下行载波。
可选地，该第一下行载波包括一个或者多个下行载波。
可选地，该第一下行载波包括该下行载波集合中一个或者多个下行载波。
可选地，该第一下行载波包括下行载波集合的一个或者多个下行载波中对于该终端设备来说信道质量最好的一个或者多个下行载波。
可选地，该第一下行载波包括该网络设备指示的一个或者多个下行载波。
可选地，该第一下行载波包括该终端设备根据预设规则确定的一个或者多个下行载波。
可选地，该第一信息还包括用于指示该第一下行载波的位置的信息。
S330，该终端设备向该网络设备发送随机接入过程消息三Msg3，该网络设备接收该终端设备发送的该Msg3，该Msg3包括第一信息，该第一信息包括用于指示该第一下行载波的信道质量的信息，该信道质量用于向该网络设备提供关于下行信道按照预设传输参数以达到预设的误块率所需要的最小重复等级的信息。
可选地，该预设的误块率可以是1％或者10％。
可选地，该下行信道为下行控制信道或者下行数据信道。
可选地，该下行信道为承载调度Msg2、承载Msg2、调度Msg3重传或者承载Msg4的下行信道。
可选地，该下行信道为承载Msg4之后数据或者信令的下行信道。
应理解，本申请实施例中，终端设备可以在发送Msg3之前对该第一下行载波的信道质量进行测量。
本申请实施例中，终端设备在随机接入过程中通过在Msg3中携带下行载波集合中一个或者多个下行载波的信道质量的信息，网络设备可以基于该下行载波的信道质量优化这个载波上的资源分配，从而有助于提高下行资源效率。
可选地，该网络设备接收该终端设备发送的Msg3之前，该方法还包括：
该终端设备向该网络设备发送随机接入过程消息一Msg1，该网络设备接收该终端设备发送的Msg1；
该网络设备向该终端设备发送随机接入过程消息二Msg2，该终端设备接收该网络设备发送的该Msg2；
其中，该Msg3还包括第二信息，该第二信息包括用于指示第二下行载波的信道质量的信息，该第二下行载波用于承载该Msg2。
本申请实施例中，终端设备在随机接入过程中通过在Msg3中携带承载Msg2的下行载波的信道质量的信息，有助于网络设备优化调度Msg3重传的下行信道和Msg4的下行信道的资源分配，从而有助于提高下行资源效率。
可选地，该网络设备接收该终端设备发送的随机接入过程消息三之前，该方法还包括：
该网络设备向该终端设备发送指示信息，该指示信息用于指示是否允许该终端设备上报第二下行载波的信道质量的信息；和/或，
该指示信息用于指示是否允许该终端设备上报该第一下行载波的信道质量的信息；和/或，
该指示信息用于指示是否允许该终端设备上报该第一下行载波的位置的信息。
该指示信息可以通过系统消息，或者RRC信令，或者媒体接入控制(media access control，MAC)控制元素(control elements，CE)，或者RAR指示。
例如，终端设备在上报该下行信道质量之前先确定这个指示信息，如果该指示信息指 示允许该终端设备上报该第二下行载波的信道质量的信息、该第一下行载波的信道质量的信息以及该第一下行载波的位置的信息，则该终端设备在随机接入消息三可以上报该第一信息和该第二信息。
可选地，该网络设备接收该终端设备发送的随机接入过程消息三之前，该方法还包括：
该终端设备向该网络设备发送该终端设备的能力信息，该能力信息用于指示该终端设备是否具有上报第二下行载波的信道质量的信息的能力；和/或，
该指示信息用于指示该终端设备具有上报该第一下行载波的信道质量的信息的能力；和/或，
该指示信息用于指示该终端设备是够具有上报该第一下行载波的位置的信息的能力。
例如，如果该终端设备有上报该第二下行载波的信道质量的信息、该第一下行载波的信道质量的信息以及该第一下行载波的位置的信息的能力，则该终端设备可以在随机接入消息三上报第一信息和该第二信息。
例如，该终端设备可以通过显式的方式上报该能力，通过一个或者多个比特的信息指示该终端设备是否具备该能力，以1比特为例，“1”代表该终端设备具备该能力，“0”代表该终端设备不具备该能力。
又例如，该终端设备可以通过隐式的方式上报该能力，网络设备可以配置多个随机接入资源，每一个随机接入资源关联一种终端设备能力，终端设备选择不同的随机接入资源发起随机接入，隐式指示终端设备能力。以配置两个随机接入资源为例，第一随机接入资源和第二随机接入资源，选择第一随机接入资源表示终端设备具有该能力，第二随机接入资源表示终端设备不具备该能力。
可选地，该Msg3还包括第一指示信息，第一指示信息包括用于指示终端设备在该Msg3中上报类型的信息，例如第一指示信息可以用于指示在该Msg3上报该第一信息或该第二信息，第一指示信息还可以用于指示在该Msg3上报该第一信息或该第二信息或该第一信息和该第二信息。
应理解，本申请实施例中，该终端设备可以在Msg3中携带多个下行载波的信道质量的信息，可选地，该Msg3中包括下行载波集合中某一个载波(信道质量最好、网络设备指示或者终端设备根据预设规则确定)的信道质量的信息和承载Msg2的下行载波的信道质量信息。
还应理解，若该下行载波集合中某一个载波和该承载Msg2的下行载波为同一个下行载波，则该终端设备只需要在Msg3中携带承载Msg2的下行载波的信道质量信息。
图6示出了本申请实施例的测量信道质量的方法400的示意性流程图，如图6所示，该方法400包括：
S410，网络设备向终端设备发送配置信息，该终端设备接收该网络设备发送的该配置信息，该配置信息用于配置下行载波集合。
可选地，该配置信息携带在系统消息中。
可选地，该系统消息为SIB22-NB或者其它系统消息。
可选地，该系统消息包括SIB2-NB和SIB22-NB。
可选地，该配置信息携带在RRC信令，或者媒体接入控制(media access control，MAC)控制元素(control elements，CE)，或者RAR指示中。
应理解，SIB2-NB和SIB22-NB的作用已经在方法200进行过说明，为了简洁，在此不再赘述。
S420，该终端设备向该网络设备发送随机接入过程消息一Msg1，该网络设备接收该终端设备发送的该Msg1。
应理解，该终端设备可以在第一上行载波上的第一随机接入资源上发送Msg1，该终端设备确定第一上行载波和该第一随机接入资源的过程在方法200中已经进行过说明，为了简洁，在此不再赘述。
可选地，该方法400还包括：
S411，该终端设备从该下行载波集合中确定一个或者多个载波；
S412，该终端设备测量该一个或者多个下行载波中每个下行载波的信道质量；
S413，该终端设备根据该每个下行载波的信道质量，确定该第一下行载波。
可选地，该第一下行载波为该一个或者多个下行载波中信道质量最好的一个或多个下行载波。
应理解，本申请实施例中，该一个或者多个下行载波可以为该下行载波集合的全集，或者，可以为该下行载波集合的子集。
还应理解，S411-S413可以在S420之前或者之后进行。
具体而言，终端设备在发送Msg1之前或者之后，在下行载波集合内的一个或者多个下行载波上使用NRS进行测量，得到SINR估计值，该估计值对应于一个特定下行控制信息(downlink control information，DCI)格式(format)的NPDCCH达到1％误块率(block error rate，BLER)需要的重复次数。
Msg2所在下行载波属于一个或者多个载波时，可以根据上面的描述得到Msg2所在下行载波的信道质量。
如果Msg2所在下行载波不属于一个或者多个载波时，对于RACH过程的Msg2所在下行载波的信道质量测量可以在发送Msg1之前或者之后完成，如果在发送Msg1之前测量，需要终端设备测量系统消息中配置的用于随机接入的下行载波集合内一个或者多个下行载波中的每一个下行载波，然后将每一个下行载波的信道质量存储起来，在该终端设备发送Msg1之后，可以确定Msg2所在下行载波位置，根据下行载波位置从已经存储的多个下行载波的信道质量中确定Msg2所在下行载波对应的信道质量。因为在发送Msg1之前，该终端设备不知道Msg2在哪个载波上发送。
应理解，该一个或者多个载波可以包括Msg2所在的下行载波，例如，系统消息中配置了15个用于RACH/Paging的下行载波，只有5个下行载波与RACH有关联，若该终端设备从该15个载波下行载波中确定了除5个与RACH相关的下行载波以外的10个下行载波为该一个或者多个载波，那么如果终端设备在发送Msg1之前进行Msg2所在的下行载波的信道质量的测量，该终端设备可以对该5个与RACH相关的下行载波都进行测量，然后在确定Msg2在哪个载波上发送后，可以确定对对应的承载Msg2的下行载波的信道质量。
如果在发送Msg1之后测量，终端设备确定Msg2所在下行载波位置，终端设备在该下行载波上使用NRS进行测量，可选地可以使用小区参考信号(cell reference signal，CRS)，Msg2，或者调度Msg2的NPDCCH进行测量，得到该下行载波对应的信道质量。
应理解，如果终端设备对Msg2所在的下行载波的测量发生在发送Msg1之后，那么即使该一个或者多个下行载波中不包括承载Msg2的下行载波，终端设备也可以直接对承载Msg2的下行载波进行测量。
表1示出了一种用于信道质量上报的NPDCCH传输参数
表1用于信道质量上报的NPDCCH传输参数
Figure PCTCN2018108138-appb-000001
S430，该网络设备向该终端设备发送随机接入过程消息二Msg2，该终端设备接收该网络设备发送的Msg2；
S440，该终端设备向该网络设备发送随机接入过程消息三Msg3，该网络设备接收该终端设备发送的该Msg3。
可选地，该Msg3中包括第一信息，该第一信息包括用于指示该信道质量最好的一个或者多个下行载波的信道质量的信息。
例如，系统消息中配置了15个用于RACH/Paging的下行载波，只有5个下行载波与RACH有关联，该终端设备可以确定这5个下行载波为该下行载波集合中的一个或者多个载波，并对这5个下行载波的信道质量进行测量，该终端设备可以在Msg3中携带这5个下行载波中信道质量最好的那个下行载波的信道质量的信息，也可以在Msg3中携带这5个下行载波中信道质量最好的前两个下行载波的信道质量的信息。
可选地，该第一信息还包括用于指示该一个或者多个下行载波的位置的信息。
可选地，该Msg3中包括第二信息，该第二信息包括用于承载Msg2的下行载波的信道质量的信息。
S450，该网络设备向该终端设备发送随机接入过程消息四Msg4，该终端设备接收该网络设备发送的该Msg4。
这里的Msg4可以包括RRCConnectionReconfiguration-NB消息，RRCConnectionReestablishment-NB消息，RRCConnectionResume-NB消息或者RRCConnectionSetup-NB消息。
可选地，该Msg4包括用于指示信道质量最好的一个或者多个下行载波的信息。
具体地，该网络设备可以在Msg4中向终端设备指示信道质量最好的一个或者多个下 行载波的位置，该终端设备后续可以在这一个或者多个下行载波上进行下行信道(例如，NPDCCH和NPDSCH)的接收。
一个实施例中，图7示出了本申请实施例提供的从终端设备接收系统消息到进入连接态的流程图，如图7所示，终端设备发送Msg1之前，对于下行，终端设备在anchor载波接收NPDCCH或者NPDSCH。终端设备根据SIB2和SIB22中的配置，按照预设概率选择在第一上行载波发送上行PRACH，并通过NRSRP和NRSRP阈值限的比较，确定对应的覆盖等级，从确定在第一上行载波的哪个NPRACH资源上发送Msg1，通过SIB2或者SIB22中的配置信息，确定被选择的上行PRACH资源对应的non-anchor载波A，终端设备从而获知RACH过程的Msg2的NPDCCH和NPDSCH、调度Msg3重传的NPDCCH以及Msg4的NPDCCH和NPDSCH均会在所述non-anchor载波A上发送。
终端设备在Msg3中上报Msg2所在non-anchor载波A的下行信道质量，有助于优化调度Msg3重传的NPDCCH和Msg4的NPDCCH和NPDSCH的资源分配，从而提高下行资源效率。
在Msg4之后，网络设备可以在Msg4配置一个non-anchor下行载波B给终端设备，终端设备后续在non-anchor下行载波B上进行NPDCCH和NPDSCH的接收。
终端设备在Msg3中上报下行测量载波集合内信道质量最好的一个或者多个下行载波的载波位置，以及该载波对应的下行信道质量。网络设备可以基于这个结果，在Msg4中给终端设备分配信道质量最好的下行载波，实现频选调度，同时基于这个载波的下行信道质量，可以优化这个载波上NPDCCH和NPDSCH的资源分配，从而提高下行资源效率。
以上结合图6和图7，介绍了本申请实施例提供的测量信道质量的方法300，方法300中终端设备可以在上报一个或者多个信道质量最好的下行载波的信道质量以及其位置信息，下面结合图8描述本申请实施例提供的方法500，方法500中网络设备可以向终端设备指示需要进行测量的下行载波。
图8示出了本申请实施例提供的测量信道质量的方法500的示意性流程图，如图8所示，该方法500包括：
S510，网络设备向终端设备发送配置信息，该终端设备接收该网络设备发送的该配置信息，该配置信息用于配置下行载波集合。
应理解，S510与上述S410相同，为了简洁，在此不再赘述。
S520，该终端设备向该网络设备发送随机接入过程消息一Msg1，该网络设备接收该终端设备发送的该Msg1。
可选地，该终端设备向该网络设备发送随机接入过程消息一Msg1之前，该方法500还包括：
S511，该网络设备向该终端设备发送第三信息，该终端设备接收该网络设备发送的该第三信息，该第三信息用于指示第一下行载波；
S512，该终端设备根据该第三信息，从该下行载波集合中确定第一下行载波。
可选地，该第三信息为下行控制信息DCI。
可选地，该DCI为NPDCCH order对应的DCI，该DCI用于通过NPDCCH order触发的随机接入过程。
本申请实施例中，该NPDCCH order对应的DCI可以用于指示终端设备发送Msg1 的上行载波的位置、子载波位置或者重复次数中的一种或者多种。
可选地，该NPDCCH order对应的DCI还可以用于指示一个或者多个下行载波，终端设备在接收到该DCI后，可以对NPDCCH order对应的DCI指示的一个或者多个下行载波进行测量。
应理解，本申请实施例中，对于NB-IoT，NPDCCH order对应的DCI为DCI格式N1，可以使用DCI格式N1中的空闲比特或者预留比特来指示该第一下行载波。
可选地，该第三信息为系统消息，第三消息为SIB2-NB或者SIB22-NB，或者SIB2-NB和SIB22-NB。第三信息的具体指示方式可以有：
方式1：网络设备可以为每个用于随机接入的上行载波指示第一下行载波，终端设备确定发送Msg1的上行载波即可确定第一下行载波。
方式2：网络设备可以为每个用于随机接入的上行载波的每个随机接入资源指示第一下行载波，终端设备确定发送Msg1的随机接入资源即可确定第一下行载波。
方式3：网络设备也可以为每个用于随机接入的上行载波的每个随机接入资源的每个子载波指示第一下行载波，终端设备确定发送Msg1的子载波即可确定第一下行载波。
S513，该终端设备测量该第一下行载波的信道质量。
S530，该网络设备向该终端设备发送随机接入过程消息二Msg2，该终端设备接收该网络设备发送的Msg2。
可选地，该Msg2包括第三信息，该第三信息用于指示一个或者多个下行载波，该终端设备接收Msg2后，可以获知网络设备希望其测量该一个或者多个下行载波的信道质量。
应理解，若该第三信息在Msg2中指示给终端设备，那么S512可以在S530之后进行。
应理解，本申请实施例中，该第三信息可以是在终端设备发送Msg1之前，由网络设备发送给该终端设备的，也可以是在Msg2中发送给该终端设备的，还可以是通过其他方式指示给终端设备的，本申请实施例并不限于以上两种方式。
S540，该终端设备向该网络设备发送随机接入过程消息三Msg3，该网络设备接收该终端设备发送的该Msg3。
可选地，Msg3中包括第一信息，该第一信息包括用于指示该一个或者多个下行载波的信道质量的信息。
具体而言，该终端设备在收到该第三信息后，可以对该第三信息中指示的一个或者多个下行载波进行测量，并在Msg3中携带该一个或者多个下行载波的信道质量的信息。
本申请实施例中，终端设备上报网络设备指定的下行载波的信道质量，网络设备根据所有终端设备上报的信道质量，确定每个载波的负载情况，比如根据统计数据，下行信道质量较好的载波负载较轻，下行信道质量较差的载波负载较重，有助于网络设备实现负载均衡，比如将负载较重的载波的部分业务分配到负载较轻的载波上。
可选地，该Msg3中包括第二信息，该第二信息包括用于承载Msg2的下行载波的信道质量的信息。
本申请实施例中，终端设备在Msg3中上报Msg2所在下行载波的信道质量，有助于优化调度Msg3重传的NPDCCH和Msg4的NPDCCH和NPDSCH的资源分配，从而提高下行资源效率。
S550，该网络设备向该终端设备发送随机接入过程消息四Msg4，该终端设备接收该 网络设备发送的该Msg4。
可选地，该方法500还包括：
该网络设备根据该第一下行载波的信道质量，确定该第一下行载波的负载；
该网络设备调整该第一下行载波的负载。
例如，系统中有1000个终端设备，网络设备可以向其中500的终端设备指示下行载波A，向其中另外500个终端设备指示下行载波B，通过终端设备反馈响应下行载波的信道质量，该网络设备确定90％的终端设备测量得到的下行载波A的信道质量QA，该网络设备确定90％的终端设备测量得到的下行载波B的信道质量QB，如果QA好于QB，那么网络设备可以确定下行载波A的负载较轻而下行载波B的负载较重，为了网络设备实现负载均衡，网络设备可以将负载较重的下行载波B的部分业务分配到负载较轻的下行载波A上。
以上结合图8介绍了本申请实施例的方法500，方法500中终端设备测量的下行载波可以由网络设备指示，下面结合图9介绍方法600，方法600中终端设备可以通过一些预定义的规则来确定需要测量的下行载波。
图9示出了本申请实施例提供的测量信道质量的方法600的示意性流程图，如图9所示，该方法600包括：
S610，网络设备向终端设备发送配置信息，该终端设备接收该网络设备发送的该配置信息，该配置信息用于配置下行载波集合；
可选地，该下行载波集合中包括一个或者多个下行载波。
可选地，该配置信息承载于系统消息中，该系统消息可以为SIB22-NB或者其它系统消息。
可选地，该下行载波集合可以包括SIB22-NB中配置的用于RACH的下行载波或者用于寻呼的下行载波。
可选地，该下行载波集合可以包括SIB22-NB中配置的用于RACH的下行载波或者用于寻呼的下行载波的子集，即可以包括SIB22-NB中配置的用于随机接入信道(random access channel，RACH)的下行载波或者用于寻呼的下行载波中的一部分下行载波。
可选地，该下行载波集合可以包括SIB22-NB中配置的和RACH相关联的下行载波。
可选地，该下行载波集合可以包括网络设备配置的用于测量的下行载波。
S611，该终端设备根据预设规则，从该下行载波集合中确定第一下行载波。
可选地，该终端设备根据预设规则，从该下行载波集合中确定第一下行载波之前，该方法600还包括：
该终端设备从该下行载波集合中确定一个或者多个下行载波。
例如，下行载波集合可以是系统消息配置的用于随机接入或者寻呼的下行载波，系统消息中配置了15个用于随机接入或者寻呼的下行载波，该终端设备可以将这15个下行载波确定为该一个或者多个下行载波。
又例如，下行载波集合是系统消息中配置的和RACH关联的下行载波，系统消息中配置了15个用于随机接入或者寻呼的下行载波，只有5个下行载波与RACH有关联，该终端设备可以将这5个下行载波确定为该一个或者多个下行载波。
应理解，该一个或者多个下行载波可以为该下行载波集合的全集或者子集。
该终端设备根据预设规则，从该下行载波集合中确定第一下行载波，包括：
该终端设备根据预设规则，从该一个或者多个下行载波中确定第一下行载波。
可选地，该终端设备可以将一个或者多个下行载波中的paging载波作为下行测量载波，终端设备确定paging载波的方式是现有技术。
paging载波为满足下式的最小索引n，
floor(UE_ID/(N*Ns))mod W<W(0)+W(1)+…+W(n)。
其中，UE_ID＝IMSI mod 4096或者UE_ID＝IMSI mod 16384，W(n)为载波n的权重，N＝min(T，nB)，Ns＝max(1，nB/T),其中T和nB由网络设备配置。IMSI为一组十进制数序列，可作为终端设备的标识。
可选地，该终端设备可以根据该终端设备的标识信息，从该一个或者多个下行载波中确定该第一下行载波。
例如，该终端设备可以根据该终端设备的标识(IMSI)和一个数值取模，得到下行载波的索引，然后从该下行载波集合中确定该下行载波索引对应的下行载波，该数值为预设值，可以小于或者等于下行载波集合中载波个数，或者该数值为下行载波集合中载波个数。
又例如，该一个或者多个下行载波中包括5个下行载波，按照一定顺序载波索引为0～4，该终端设备通过IMSI与M取模得到载波的索引为4，则该终端设备确定该一个或者多个下行载波中载波索引为“4”的载波作为第一下行载波。
可选地，该终端设备可以根据随机接入的资源位置确定下行载波，例如随机接入资源位置和下行载波之间有一个映射关系，映射关系有以下方式：
方式1：每个用于随机接入的上行载波映射一个下行载波，终端设备确定发送Msg1的上行载波即可确定第一下行载波。
方式2：每个用于随机接入的上行载波的每个随机接入资源映射一个下行载波，终端设备确定发送Msg1的随机接入资源即可确定第一下行载波。
方式3：每个用于随机接入的上行载波的每个随机接入资源的每个子载波映射一个下行载波，终端设备确定发送Msg1的子载波即可确定第一下行载波。
应理解，本申请实施例中，该终端设备还可以通过其他预设规则确定该第一下行载波，本申请实施例中并不限于以上两种方式。
S612，该终端设备测量该第一下行载波的信道质量。
S620，该终端设备向该网络设备发送随机接入过程消息一Msg1，该网络设备接收该终端设备发送的该Msg1；
S630，该网络设备向该终端设备发送随机接入过程消息二Msg2，该终端设备接收该网络设备发送的Msg2；
S640，该终端设备向该网络设备发送随机接入过程消息三Msg3，该网络设备接收该终端设备发送的该Msg3。
可选地，Msg3中包括第一信息，该第一信息包括用于指示终端设备通过预设规则确定的第一下行载波的信道质量的信息。
可选地，该第一信息还包括用于指示该第一下行载波的位置的信息。
具体而言，该终端设备通过预设规则确定该第一下行载波并对该第一下行载波进行测量后，可以在Msg3中携带该第一下行载波的信道质量的信息。
本申请实施例中，终端设备上报该终端设备根据预设规则确定的下行载波的信道质量，网络设备根据所有终端设备上报的信道质量，确定每个载波的负载情况，比如根据统计数据，下行信道质量较好的载波负载较轻，下行信道质量较差的载波负载较重，有助于网络设备实现负载均衡，比如将负载较重的载波的部分业务分配到负载较轻的载波上。
可选地，该Msg3中包括第二信息，该第二信息包括用于承载Msg2的下行载波的信道质量的信息。
本申请实施例中，终端设备在Msg3中上报Msg2所在下行载波的信道质量，有助于优化调度Msg3重传的NPDCCH和Msg4的NPDCCH和NPDSCH的资源分配，从而提高下行资源效率。
S650，该网络设备向该终端设备发送随机接入过程消息四Msg4，该终端设备接收该网络设备发送的该Msg4。
可选地，该方法600还包括：
该网络设备根据该第一下行载波的信道质量，确定该第一下行载波的负载；
该网络设备调整该第一下行载波的负载。
对于上述方法300至方法600中的描述，终端设备可以在第一信息和第二信息中直接指示第一下行载波的信道质量和承载Msg2的信道质量的下行载波，也可以通过其他方式间接指示。
一种可能的实现方式中，当终端设备上报该第一信息和第二信息时，第一信息中可以包括用于指示第一下行载波的信道质量的信息，第二信息可以包括用于指示Msg2所在下行载波的信道质量相对于第一下行载波的信道质量的偏差的信息，该网络设备根据第二信息中的该偏差和第一信息中的信道质量可以确定Msg2所在下行载波的信道质量。
另一种可能的实现方式中，当终端设备上报该第一信息和第二信息时，第二信息可以包括用于指示Msg2所在下行载波的信道质量的信息，第一信息中可以包括用于指示第一下行载波的信道质量相对于Msg2所在下行载波的信道质量的偏差的信息，根据第一信息中的该偏差和第二信息中的信道质量可以确定第一下行载波的信道质量。
以上结合图9介绍了本申请实施例的方法600，方法600中终端设备可以通过预设规则确定需要测量的下行载波的信道质量上报给网络设备，网络设备基于信道质量，可以实现负载均衡，下面结合图10介绍本申请实施例的方法700，方法700中终端设备可以上报多个下行载波的信道质量的平均值，有助于网络设备判断当前系统的负载情况。
图10示出了本申请实施例提供的测量信道质量的方法700的示意性流程图，如图10所示，该方法700包括：
S710，网络设备向终端设备发送配置信息，该终端设备接收该网络设备发送的该配置信息，该配置信息用于配置下行载波集合；
S711，该终端设备从该下行载波集合中确定多个下行载波。
应理解，该终端设备从该下行载波集合中确定多个下行载波的过程与上述方法600中的过程类似，为了简洁，在此不再赘述。
S712，该终端设备对下行载波集合中的多个下行载波进行测量，得到每个下行载波的信道质量。
S713，该终端设备确定该多个下行载波的信道质量的平均值。
S720，该终端设备向该网络设备发送随机接入过程消息一Msg1，该网络设备接收该终端设备发送的该Msg1；
S730，该网络设备向该终端设备发送随机接入过程消息二Msg2，该终端设备接收该网络设备发送的Msg2；
S740，该终端设备向该网络设备发送随机接入过程消息三Msg3，该网络设备接收该终端设备发送的该Msg3。
可选地，Msg3中包括第四信息，该第四信息包括用于指示该多个下行载波的信道质量的平均值的信息。
本申请实施例中，终端设备上报该终端设备根据多个下行载波的信道质量的平均值，有助于网络设备明确当前系统的负载情况。
可选地，该Msg3中包括第二信息，该第二信息包括用于承载Msg2的下行载波的信道质量的信息。
本申请实施例中，终端设备在Msg3中上报Msg2所在下行载波的信道质量，有助于优化调度Msg3重传的NPDCCH和Msg4的NPDCCH和NPDSCH的资源分配，从而提高下行资源效率。
以上，结合图4至图10对本申请实施提供的测量信道质量的方法进行了详细地说明。以下，结合附图对本申请实施例提供的测量信道质量的装置做详细说明。
本申请实施例还提供用于实现以上任一种方法的装置。例如，提供一种装置，包括用以实现以上任一种方法中终端所执行的各个步骤的单元(或手段)。再如，还提供另一种装置，包括用以实现以上任一种方法中网络设备所执行的各个步骤的单元(或手段)。
图11示出了本申请实施例提供的测量信道质量的装置800的示意性框图，如图11所示，该测量信道质量的装置800可以包括收发单元810和处理单元820。
在一种可能的设计中，该测量信道质量的装置可以为上述方法300至方法700中的终端设备或者配置于终端设备中的芯片。
具体地，收发单元810，用于接收网络设备发送的配置信息；
处理单元820，用于从该下行载波集合中确定第一下行载波；
该收发单元810还用于向该网络设备发送随机接入过程消息三Msg3，该Msg3包括第一信息，该第一信息包括用于指示该第一下行载波的信道质量的信息，该信道质量用于向该网络设备提供第一重复等级的信息，该第一重复等级为下行信道按照预设传输参数所进行的传输满足预设的误块率时所需的最小重复等级。
可选地，该收发单元810，还用于在向所述网络设备发送Msg3之前，
向网络设备发送随机接入过程消息一Msg1；
接收该网络设备发送的随机接入过程消息二Msg2；
其中，该Msg3还包括第二信息，该第二信息包括用于指示第二下行载波的信道质量的信息，该第二下行载波用于承载该Msg2，该第一下行载波和该第二下行载波为不同的下行载波。
可选地，该处理单元820用于从该下行载波集合中确定第一下行载波，包括：
用于从该下行载波集合中确定一个或者多个载波；
测量该一个或者多个下行载波中每个下行载波的信道质量；
以及根据该每个下行载波的信道质量，确定该第一下行载波；该第一下行载波为该一个或者多个下行载波中信道质量最好的一个或多个下行载波。
应理解，测量信道质量的装置800可对应于根据本申请实施例的测量信道质量的方法400中的终端设备，该测量信道质量的装置800可以包括用于执行测量信道质量的方法400的终端设备执行的方法的单元。并且，该测量信道质量的装置800中的各单元和上述其他操作和/或功能分别为了实现测量信道质量的方法400的相应流程。各单元执行上述相应步骤的具体过程请参照前文中结合图6和图7的方法实施例的描述，为了简洁，这里不再赘述。
可选地，该处理单元820用于从该下行载波集合中确定第一下行载波，包括：
用于根据预设规则，从该下行载波集合中确定该第一下行载波。
可选地，该处理单元820用于根据预设规则，从该下行载波集合中确定该第一下行载波，包括：
用于将该下行载波集合中的寻呼载波确定为该第一下行载波；或者，
用于根据该终端设备的标识信息，从该下行载波集合中确定该第一下行载波。
应理解，测量信道质量的装置800可对应于根据本申请实施例的测量信道质量的方法600中的终端设备，该测量信道质量的装置800可以包括用于执行测量信道质量的方法600的终端设备执行的方法的单元。并且，该测量信道质量的装置800中的各单元和上述其他操作和/或功能分别为了实现测量信道质量的方法600的相应流程。各单元执行上述相应步骤的具体过程请参照前文中结合图9的方法实施例的描述，为了简洁，这里不再赘述。可选地，该第一信息还包括用于指示该第一下行载波的位置的信息。
可选地，该收发单元810还用于接收该网络设备发送的第三信息，该第三信息用于指示该第一下行载波；
该处理单元820用于从该下行载波集合中确定第一下行载波，包括：
用于根据该第三信息，从该下行载波集合中确定该第一下行载波。
应理解，测量信道质量的装置800可对应于根据本申请实施例的测量信道质量的方法500中的终端设备，该测量信道质量的装置800可以包括用于执行测量信道质量的方法500的终端设备执行的方法的单元。并且，该测量信道质量的装置800中的各单元和上述其他操作和/或功能分别为了实现测量信道质量的方法500的相应流程。各单元执行上述相应步骤的具体过程请参照前文中结合图8的方法实施例的描述，为了简洁，这里不再赘述。
可选地，该收发单元810，用于接收该网络设备发送的配置信息，该配置信息用于配置下行载波集合；
该处理单元820，用于从该下行载波集合中确定多个下行载波；
该处理单元820，还用于对该多个下行载波中每个下行载波进行测量，得到每个下行载波的信道质量并确定该多个下行载波的信道质量的平均值。
该收发单元810还用于向该网络设备发送随机接入过程消息三Msg3，该Msg3中包括该平均值。
应理解，测量信道质量的装置800可对应于根据本申请实施例的测量信道质量的方法700中的终端设备，该测量信道质量的装置800可以包括用于执行测量信道质量的方法700的终端设备执行的方法的单元。并且，该测量信道质量的装置800中的各单元和上述其他 操作和/或功能分别为了实现测量信道质量的方法700的相应流程。各单元执行上述相应步骤的具体过程请参照前文中结合图10的方法实施例的描述，为了简洁，这里不再赘述。
图12示出了本申请实施例提供的测量信道质量的装置900的示意性框图，如图12所示，该测量信道质量的装置900可以包括处理单元910和收发单元920。
在一种可能的设计中，该测量信道质量的装置可以为上述方法300至方法700中的网络设备或者配置于网络设备中的芯片。
具体地，处理单元910，用于确定配置信息，该配置信息用于配置下行载波集合，该下行载波集合包括第一下行载波；
收发单元920，用于向终端设备发送配置信息；
该收发单元920，还用于接收该终端设备发送的随机接入过程消息三Msg3，该Msg3包括第一信息，该第一信息包括用于指示该第一下行载波的信道质量的信息，该信道质量用于向该装置提供第一重复等级的信息，所述第一重复等级为下行信道按照预设传输参数所进行的传输满足预设的误块率时所需的最小重复等级。
可选地，该收发单元920还用于在接收该终端设备发送的Msg3之前，
接收该终端设备发送的随机接入过程消息一Msg1；
向该终端设备发送随机接入过程消息二Msg2；
其中，该Msg3还包括第二信息，该第二信息包括用于指示第二下行载波的信道质量的信息，该第二下行载波用于承载该Msg2，该第一下行载波和该第二下行载波为不同的下行载波。
可选地，该第一下行载波为下行载波集合的一个或者多个载波中对于该终端设备来说信道质量最好的一个或多个下行载波。
可选地，该收发单元920还用于在发Msg3之后，向该终端设备发送第六信息，该第六信息用于指示该第一下行载波的位置。
应理解，测量信道质量的装置900可对应于根据本申请实施例的测量信道质量的方法400中的网络设备，该测量信道质量的装置900可以包括用于执行测量信道质量的方法400的网络设备执行的方法的单元。并且，该测量信道质量的装置900中的各单元和上述其他操作和/或功能分别为了实现测量信道质量的方法400的相应流程。各单元执行上述相应步骤的具体过程请参照前文中结合图6和图7的方法实施例的描述，为了简洁，这里不再赘述。
可选地，该第一下行载波由该终端设备根据预设规则确定。
应理解，测量信道质量的装置900可对应于根据本申请实施例的测量信道质量的方法600中的网络设备，该测量信道质量的装置900可以包括用于执行测量信道质量的方法600的网络设备执行的方法的单元。并且，该测量信道质量的装置900中的各单元和上述其他操作和/或功能分别为了实现测量信道质量的方法600的相应流程。各单元执行上述相应步骤的具体过程请参照前文中结合图9的方法实施例的描述，为了简洁，这里不再赘述。可选地，该第一信息还包括用于指示该第一下行载波的位置的信息。
可选地，该收发单元920还用于在发Msg3之前，向该终端设备发送第三信息，该第三信息用于指示该第一下行载波。
可选地，该处理单元910还用于：
根据该第一下行载波的信道质量，确定该第一下行载波的负载；
调整该第一下行载波的负载。
应理解，测量信道质量的装置900可对应于根据本申请实施例的测量信道质量的方法500中的网络设备，该测量信道质量的装置900可以包括用于执行测量信道质量的方法500的网络设备执行的方法的单元。并且，该测量信道质量的装置900中的各单元和上述其他操作和/或功能分别为了实现测量信道质量的方法500的相应流程。各单元执行上述相应步骤的具体过程请参照前文中结合图8的方法实施例的描述，为了简洁，这里不再赘述。
可选地，该收发单元920，用于接收终端设备发送的随机接入过程消息三Msg3，该Msg3中包括一个或者多个下行载波的平均值，该一个或者多个下行载波由该终端设备从该下行载波集合中确定。
应理解，测量信道质量的装置900可对应于根据本申请实施例的测量信道质量的方法700中的网络设备，该测量信道质量的装置900可以包括用于执行测量信道质量的方法700的网络设备执行的方法的单元。并且，该测量信道质量的装置900中的各单元和上述其他操作和/或功能分别为了实现测量信道质量的方法700的相应流程。各单元执行上述相应步骤的具体过程请参照前文中结合图10的方法实施例的描述，为了简洁，这里不再赘述。
图13示出了本申请实施例提供的终端设备的结构示意图，其可以为以上实施例中的终端设备，用于实现以上实施例中终端设备的操作。如图13所示，该终端设备包括：天线1010、射频部分1020、信号处理部分1030。天线1010与射频部分1020连接。在下行方向上，射频部分1020通过天线1010接收网络设备发送的信息，将网络设备发送的信息发送给信号处理部分1030进行处理。在上行方向上，信号处理部分1030对终端的信息进行处理，并发送给射频部分1020，射频部分1020对终端设备的信息进行处理后经过天线1010发送给网络设备。
信号处理部分1030可以包括调制解调子系统，用于实现对数据各通信协议层的处理；还可以包括中央处理子系统，用于实现对终端操作系统以及应用层的处理；此外，还可以包括其它子系统，例如多媒体子系统，周边子系统等，其中多媒体子系统用于实现对终端设备相机，屏幕显示等的控制，周边子系统用于实现与其它设备的连接。调制解调子系统可以为单独设置的芯片。可选的，以上用于终端的装置可以位于该调制解调子系统。
调制解调子系统可以包括一个或多个处理元件1031，例如，包括一个主控CPU和其它集成电路。此外，该调制解调子系统还可以包括存储元件1032和接口电路1033。存储元件1032用于存储数据和程序，但用于执行以上方法中终端所执行的方法的程序可能不存储于该存储元件1032中，而是存储于调制解调子系统之外的存储器中，使用时调制解调子系统加载使用。接口电路1033用于与其它子系统通信。以上用于终端的装置可以位于调制解调子系统，该调制解调子系统可以通过芯片实现，该芯片包括至少一个处理元件和接口电路，其中处理元件用于执行以上终端设备执行的任一种方法的各个步骤，接口电路用于与其它装置通信。在一种实现中，终端设备实现以上方法中各个步骤的单元可以通过处理元件调度程序的形式实现，例如用于终端设备的装置包括处理元件和存储元件，处理元件调用存储元件存储的程序，以执行以上方法实施例中终端设备执行的方法。存储元件可以为处理元件处于同一芯片上的存储元件，即片内存储元件。
在另一种实现中，用于执行以上方法中终端设备所执行的方法的程序可以在与处理元 件处于不同芯片上的存储元件，即片外存储元件。此时，处理元件从片外存储元件调用或加载程序于片内存储元件上，以调用并执行以上方法实施例中终端执行的方法。
在又一种实现中，终端实现以上方法中各个步骤的单元可以是被配置成一个或多个处理元件，这些处理元件设置于调制解调子系统上，这里的处理元件可以为集成电路，例如：一个或多个专用集成电路(application specific integrated circuit，ASIC)，或，一个或多个数字信号处理器(digital signal processor，DSP)，或，一个或者多个现成可编程门阵列(field programmable gate array，FPGA)，或者这些类集成电路的组合。这些集成电路可以集成在一起，构成芯片。
终端实现以上方法中各个步骤的单元可以集成在一起，以片上系统(system-on-a-chip，SOC)的形式实现，该SOC芯片，用于实现以上方法。该芯片内可以集成至少一个处理元件和存储元件，由处理元件调用存储元件的存储的程序的形式实现以上终端执行的方法；或者，该芯片内可以集成至少一个集成电路，用于实现以上终端执行的方法；或者，可以结合以上实现方式，部分单元的功能通过处理元件调用程序的形式实现，部分单元的功能通过集成电路的形式实现。
可见，以上用于终端设备的装置可以包括至少一个处理元件和接口电路，其中至少一个处理元件用于执行以上方法实施例所提供的任一种终端设备执行的方法。处理元件可以以第一种方式：即调用存储元件存储的程序的方式执行终端执行的部分或全部步骤；也可以以第二种方式：即通过处理器元件中的硬件的集成逻辑电路结合指令的方式执行终端设备执行的部分或全部步骤；当然，也可以结合第一种方式和第二种方式执行终端执行的部分或全部步骤。
这里的处理元件同以上描述，可以是通用处理器，例如CPU，还可以是被配置成实施以上方法的一个或多个集成电路，例如：一个或多个ASIC，或，一个或多个微处理器DSP，或，一个或者多个FPGA等，或这些集成电路形式中至少两种的组合。
存储元件可以是一个存储器，也可以是多个存储元件的统称。
图14示出了本申请实施例提供的网络设备的结构示意图，其可以为上述实施例中的网络设备，用于实现以上实施例中网络设备的操作。如图14所示，该网络设备包括：天线1101、射频装置1102、基带装置1103。天线1101与射频装置1102连接。在上行方向上，射频装置1102通过天线1101接收终端设备发送的信息，将终端设备发送的信息发送给基带装置1103进行处理。在下行方向上，基带装置1103对终端的信息进行处理，并发送给射频装置1102，射频装置1102对终端设备的信息进行处理后经过天线1101发送给终端。
基带装置1103可以包括一个或多个处理元件11031，例如，包括一个主控CPU和其它集成电路。此外，该基带装置1103还可以包括存储元件11032和接口11033，存储元件11032用于存储程序和数据；接口11033用于与射频装置1102交互信息，该接口例如为通用公共无线接口(common public radio interface，CPRI)。以上用于网络设备的装置可以位于基带装置1103，例如，以上用于网络设备的装置可以为基带装置1103上的芯片，该芯片包括至少一个处理元件和接口电路，其中处理元件用于执行以上网络设备执行的任一种方法的各个步骤，接口电路用于与其它装置通信。在一种实现中，网络设备实现以上方法中各个步骤的单元可以通过处理元件调度程序的形式实现，例如用于网络设备的装置 包括处理元件和存储元件，处理元件调用存储元件存储的程序，以执行以上方法实施例中网络设备执行的方法。存储元件可以为处理元件处于同一芯片上的存储元件，即片内存储元件，也可以为与处理元件处于不同芯片上的存储元件，即片外存储元件。
在另一种实现中，网络设备实现以上方法中各个步骤的单元可以是被配置成一个或多个处理元件，这些处理元件设置于基带装置上，这里的处理元件可以为集成电路，例如：一个或多个ASIC，或，一个或多个DSP，或，一个或者多个FPGA，或者这些类集成电路的组合。这些集成电路可以集成在一起，构成芯片。
网络设备实现以上方法中各个步骤的单元可以集成在一起，以SOC的形式实现，例如，基带装置包括该SOC芯片，用于实现以上方法。该芯片内可以集成至少一个处理元件和存储元件，由处理元件调用存储元件的存储的程序的形式实现以上网络设备执行的方法；或者，该芯片内可以集成至少一个集成电路，用于实现以上网络设备执行的方法；或者，可以结合以上实现方式，部分单元的功能通过处理元件调用程序的形式实现，部分单元的功能通过集成电路的形式实现。
可见，以上用于网络设备的装置可以包括至少一个处理元件和接口电路，其中至少一个处理元件用于执行以上方法实施例所提供的任一种网络设备执行的方法。处理元件可以以第一种方式：即调用存储元件存储的程序的方式执行网络设备执行的部分或全部步骤；也可以以第二种方式：即通过处理器元件中的硬件的集成逻辑电路结合指令的方式执行网络设备执行的部分或全部步骤；当然，也可以结合第一种方式和第二种方式执行以上网络设备执行的部分或全部步骤。
这里的处理元件同以上描述，可以是通用处理器，例如CPU，还可以是被配置成实施以上方法的一个或多个集成电路，例如：一个或多个ASIC，或，一个或多个微处理器DSP，或，一个或者多个FPGA等，或这些集成电路形式中至少两种的组合。
存储元件可以是一个存储器，也可以是多个存储元件的统称。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、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，所述单元的划分，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，例如多个单元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，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品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)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(read-only memory，ROM)、随机存取存储器(random access memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (32)

  1. 一种测量信道质量的方法，其特征在于，包括：
    终端设备接收网络设备发送的配置信息，所述配置信息用于配置下行载波集合；
    所述终端设备从所述下行载波集合中确定第一下行载波；
    所述终端设备向所述网络设备发送随机接入过程消息三Msg3，所述Msg3包括第一信息，所述第一信息包括用于指示所述第一下行载波的信道质量的信息,所述信道质量用于向所述网络设备提供第一重复等级的信息，所述第一重复等级为下行信道按照预设传输参数所进行的传输满足预设的误块率时所需的最小重复等级。
  2. 根据权利要求1所述的方法，其特征在于，所述终端设备向所述网络设备发送Msg3之前，所述方法还包括：
    所述终端设备向网络设备发送随机接入过程消息一Msg1；
    所述终端设备接收所述网络设备发送的随机接入过程消息二Msg2；
    其中，所述Msg3还包括第二信息，所述第二信息包括用于指示第二下行载波的信道质量的信息，所述第二下行载波用于承载所述Msg2，所述第一下行载波和所述第二下行载波为不同的下行载波。
  3. 根据权利要求1或2所述的方法，其特征在于，所述终端设备从所述下行载波集合中确定第一下行载波，包括：
    所述终端设备从所述下行载波集合中确定一个或者多个载波；
    所述终端设备测量所述一个或者多个下行载波中每个下行载波的信道质量；
    所述终端设备根据所述每个下行载波的信道质量，确定所述第一下行载波；所述第一下行载波为所述一个或者多个下行载波中信道质量最好的一个或多个下行载波。
  4. 根据权利要求1或2所述的方法，其特征在于，所述终端设备从所述下行载波集合中确定第一下行载波，包括：
    所述终端设备根据预设规则，从所述下行载波集合中确定所述第一下行载波。
  5. 根据权利要求4所述的方法，其特征在于，所述终端设备根据预设规则，从所述下行载波集合中确定所述第一下行载波，包括：
    所述终端设备将所述下行载波集合中的寻呼paging载波确定为所述第一下行载波；或者，
    所述终端设备根据所述终端设备的标识信息，从所述下行载波集合中确定所述第一下行载波。
  6. 根据权利要求1至5中任一项所述的方法，其特征在于，所述第一信息还包括用于指示所述第一下行载波的位置的信息。
  7. 根据权利要求1或2所述的方法，其特征在于，所述终端设备从所述下行载波集合中确定第一下行载波，包括：
    所述终端设备接收所述网络设备发送的第三信息，所述第三信息用于指示所述第一下行载波；
    所述终端设备根据所述第三信息从所述下行载波集合中确定所述第一下行载波。
  8. 一种测量信道质量的方法，其特征在于，包括：
    网络设备确定配置信息，所述配置信息用于配置下行载波集合，所述下行载波集合包括第一下行载波；
    所述网络设备向终端设备发送所述配置信息；
    所述网络设备接收所述终端设备发送的随机接入过程消息三Msg3，所述Msg3包括第一信息，所述第一信息包括用于指示所述第一下行载波的信道质量的信息,所述信道质量用于向所述网络设备提供第一重复等级的信息，所述第一重复等级为下行信道按照预设传输参数所进行的传输满足预设的误块率时所需的最小重复等级。
  9. 根据权利要求8所述的方法，其特征在于，所述网络设备接收所述终端设备发送的Msg3之前，所述方法还包括：
    所述网络设备接收所述终端设备发送的随机接入过程消息一Msg1；
    所述网络设备向所述终端设备发送随机接入过程消息二Msg2；
    其中，所述Msg3还包括第二信息，所述第二信息包括用于指示第二下行载波的信道质量的信息，所述第二下行载波用于承载所述Msg2，所述第一下行载波和所述第二下行载波为不同的下行载波。
  10. 根据权利要求8或9所述的方法，其特征在于，所述第一下行载波为下行载波集合的一个或者多个载波中对于所述终端设备来说信道质量最好的一个或多个下行载波。
  11. 根据权利要求10所述的方法，其特征在于，所述网络设备接收所述终端设备发送的Msg3之后，所述方法还包括：
    所述网络设备向所述终端设备发送第六信息，所述第六信息用于指示所述第一下行载波。
  12. 根据权利要求8或9所述的方法，其特征在于，所述第一下行载波由所述终端设备根据预设规则确定。
  13. 根据权利要求8至12中任一项所述的方法，其特征在于，所述第一信息还包括用于指示所述第一下行载波的位置的信息。
  14. 根据权利要求8或9所述方法，其特征在于，所述网络设备接收所述终端设备发送的Msg3之前，所述方法还包括：
    所述网络设备向所述终端设备发送第三信息，所述第三信息用于指示所述第一下行载波。
  15. 根据权利要求8至14中任一项所述的方法，其特征在于，所述方法还包括：
    所述网络设备根据所述第一下行载波的信道质量，确定所述第一下行载波的负载；
    所述网络设备调整所述第一下行载波的负载。
  16. 一种测量信道质量的装置，其特征在于，包括：
    收发单元，用于接收网络设备发送的配置信息，所述配置信息用于配置下行载波集合；
    处理单元，用于从所述下行载波集合中确定第一下行载波；
    所述收发单元，还用于向所述网络设备发送随机接入过程消息三Msg3，所述Msg3包括第一信息，所述第一信息包括用于指示所述第一下行载波的信道质量的信息,所述信道质量用于向所述网络设备提供第一重复等级的信息，所述第一重复等级为下行信道按照预设传输参数所进行的传输满足预设的误块率时所需的最小重复等级。
  17. 根据权利要求16所述的装置，其特征在于，所述收发单元，还用于在向所述网络设备发送Msg3之前，
    向网络设备发送随机接入过程消息一Msg1；
    接收所述网络设备发送的随机接入过程消息二Msg2；
    其中，所述Msg3还包括第二信息，所述第二信息包括用于指示第二下行载波的信道质量的信息，所述第二下行载波用于承载所述Msg2，所述第一下行载波和所述第二下行载波为不同的下行载波。
  18. 根据权利要求16或17所述的装置，其特征在于，所述处理单元用于确定所述第一下行载波，包括：用于从所述下行载波集合中确定一个或者多个载波；测量所述一个或者多个下行载波中每个下行载波的信道质量；以及根据所述每个下行载波的信道质量，确定所述第一下行载波，所述第一下行载波为所述一个或者多个下行载波中信道质量最好的一个或多个下行载波。
  19. 根据权利要求16或17所述的装置，其特征在于，
    所述处理单元用于确定所述第一下行载波，包括：用于根据预设规则，从所述下行载波集合中确定所述第一下行载波。
  20. 根据权利要求19所述的装置，其特征在于，所述处理单元用于根据预设规则确定所述第一下行载波，包括：
    用于将所述下行载波集合中的寻呼paging载波确定为所述第一下行载波；或者，
    用于根据所述终端设备的标识信息，从所述下行载波集合中确定所述第一下行载波。
  21. 根据权利要求16至20中任一项所述的装置，其特征在于，所述第一信息还包括用于指示所述第一下行载波的位置的信息。
  22. 根据权利要求16或17所述的装置，其特征在于，所述收发单元，还用于在向所述网络设备发送Msg3之前，接收所述网络设备发送的第三信息，所述第三信息用于指示所述第一下行载波；
    所述处理单元用于确定所述第一下行载波，包括：用于根据所述第三信息从所述下行载波集合中确定所述第一下行载波。
  23. 一种测量信道质量的装置，其特征在于，包括：
    处理单元，用于确定配置信息，所述配置信息用于配置下行载波集合，所述下行载波集合包括第一下行载波；
    收发单元，还用于向终端设备发送所述配置信息；
    所述收发单元，还用于接收所述终端设备发送的随机接入过程消息三Msg3，所述Msg3包括第一信息，所述第一信息包括用于指示所述第一下行载波的信道质量的信息,所述信道质量用于向所述网络设备提供第一重复等级的信息，所述第一重复等级为下行信道按照预设传输参数所进行的传输满足预设的误块率时所需的最小重复等级。
  24. 根据权利要求23所述的装置，其特征在于，所述收发单元，还用于在接收所述终端设备发送的Msg3之前，
    接收所述终端设备发送的随机接入过程消息一Msg1；
    向所述终端设备发送随机接入过程消息二Msg2；
    其中，所述Msg3还包括第二信息，所述第二信息包括用于指示第二下行载波的信道 质量的信息，所述第二下行载波用于承载所述Msg2，所述第一下行载波和所述第二下行载波为不同的下行载波。
  25. 根据权利要求23或24所述的装置，其特征在于，所述第一下行载波为下行载波集合的一个或者多个载波中对于所述终端设备来说信道质量最好的一个或多个下行载波。
  26. 根据权利要求25所述的装置，其特征在于，所述收发单元，还用于在接收所述终端设备发送的Msg3之后，向所述终端设备发送第六信息，所述第六信息用于指示所述第一下行载波。
  27. 根据权利要求23或24所述的装置，其特征在于，所述第一下行载波由所述终端设备根据预设规则确定。
  28. 根据权利要求23至27中任一项所述的装置，其特征在于，所述第一信息还包括用于指示所述第一下行载波的位置的信息。
  29. 根据权利要求23或24所述装置，其特征在于，所述收发单元，还用于在接收所述终端设备发送的Msg3之前，向所述终端设备发送第三信息，所述第三信息用于指示所述第一下行载波。
  30. 根据权利要求23至29中任一项所述的装置，其特征在于，所述处理单元还用于：
    根据所述第一下行载波的信道质量，确定所述第一下行载波的负载；
    调整所述第一下行载波的负载。
  31. 一种计算机可读存储介质，其上存储有指令，当所述指令在计算机上运行时，使得所述计算机执行权利要求1至7中任一项所述的方法。
  32. 一种计算机可读存储介质，其上存储有指令，当所述指令在计算机上运行时，使得所述计算机执行权利要求8至15中任一项所述的方法。
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