WO2021218925A1 - 一种调整信道质量指标cqi的方法和终端设备 - Google Patents

一种调整信道质量指标cqi的方法和终端设备 Download PDF

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Publication number
WO2021218925A1
WO2021218925A1 PCT/CN2021/089983 CN2021089983W WO2021218925A1 WO 2021218925 A1 WO2021218925 A1 WO 2021218925A1 CN 2021089983 W CN2021089983 W CN 2021089983W WO 2021218925 A1 WO2021218925 A1 WO 2021218925A1
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Prior art keywords
cqi
adjustment amount
value
initial value
terminal device
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PCT/CN2021/089983
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English (en)
French (fr)
Inventor
杨建华
郭翱
薛祎凡
徐堃
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华为技术有限公司
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Priority to EP21795373.6A priority Critical patent/EP4135391A4/en
Publication of WO2021218925A1 publication Critical patent/WO2021218925A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0057—Physical resource allocation for CQI
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/20—Monitoring; Testing of receivers
    • H04B17/24—Monitoring; Testing of receivers with feedback of measurements to the transmitter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • This application relates to the communication field, and more specifically, to a method and terminal equipment for adjusting the channel quality index CQI.
  • CQI Channel Quality Indicator
  • the CQI is estimated by the terminal equipment (User Equipment, UE) according to the downlink reference signal it receives.
  • the UE reports the estimated CQI to the access network equipment, and the access network equipment selects the appropriate Modulation and Coding Scheme (MCS) and code rate according to the CQI to schedule the UE; or the access network equipment according to
  • MCS Modulation and Coding Scheme
  • the outer loop adjustment mechanism adjusts the CQI estimated by the UE and then selects the appropriate MCS and code rate according to the adjusted CQI to schedule the UE.
  • MCS Modulation and Coding Scheme
  • the present application provides a method and terminal equipment for adjusting the channel quality index CQI.
  • the method for adjusting the channel quality index CQI improves the accuracy of MCS and code rate selected according to the CQI.
  • a method for adjusting the channel quality index CQI is provided.
  • the method is applied to a terminal device and includes: determining a first initial value of CQI according to a downlink reference signal; and according to demodulation results and/or foreground of N transport blocks
  • the service type determines the CQI adjustment amount.
  • Each transmission block is used to transmit data signals, and N is greater than or equal to 1.
  • the CQI report value is determined, and the CQI report The value is the CQI value sent by the terminal device to the access network device.
  • the terminal device determines the first initial value of the CQI according to the downlink reference signal, and the terminal device determines the adjustment amount of the CQI according to the demodulation results of the N data transmission blocks and/or the foreground service type, and according to the first initial value of the CQI
  • the CQI report value is determined, which avoids that only the downlink reference signal is used to determine the CQI report value and the selected MCS is not accurate enough, which can further improve the communication quality.
  • the determining the CQI adjustment amount based on the demodulation results of the N transport blocks includes: according to the demodulation results of the N transport blocks that have been decoded and the solution The preset adjustment amount corresponding to the adjustment result determines the adjustment amount of the CQI.
  • the terminal device determines the CQI adjustment amount according to the demodulation result of the N decoded transport blocks and the preset adjustment amount corresponding to the demodulation result, and can determine the CQI adjustment amount in real time, which further improves the access network.
  • the accuracy of the MCS selected by the device according to the reported value of the CQI improves the communication quality.
  • the determination of the CQI adjustment amount according to the demodulation result of the N transport blocks that have been decoded and the preset adjustment amount corresponding to the demodulation result includes :
  • a is the CQI adjustment corresponding to successful decoding
  • n1 is the number of successful decoding
  • b is the adjustment of failed decoding
  • n2 is the number of failed decoding
  • n1+n2 N.
  • the determination of the CQI adjustment amount based on the demodulation result of the N decoded transport blocks and the preset adjustment amount corresponding to the demodulation result includes :
  • f(k) is the k-th scheduling adjustment amount
  • ⁇ is the preset adjustment amount corresponding to the previous demodulation result
  • demodulation success ⁇ a
  • demodulation failure ⁇ -b.
  • determining the CQI adjustment amount according to the foreground service type includes: determining the CQI adjustment strategy according to the foreground service type; determining the CQI adjustment strategy according to the CQI adjustment strategy The amount of CQI adjustment.
  • the strategy for adjusting the CQI is determined according to the foreground service type, including: the current service type is a delay-sensitive service, and the CQI adjustment strategy is to change the CQI The value of is changed to the first preset value to be reported; or, if the current service type is a delay-sensitive service, the CQI adjustment strategy is: if the first initial value of the CQI is greater than the first threshold, then the CQI is reported The value is equal to the first initial value of the CQI minus the first threshold. If the first initial value of the CQI is less than or equal to the first threshold, the reported value of the CQI is equal to the second preset value.
  • the determination of the CQI adjustment amount based on the demodulation results of the N transport blocks and the foreground service type includes: demodulation based on the N transport blocks that have been decoded The result and the preset adjustment amount corresponding to the demodulation result determine the adjustment amount of the CQI; according to the first initial value of the CQI and the adjustment amount of the CQI, the second initial value of the CQI; according to the foreground service type, Determine the strategy for adjusting the CQI; determine the reported value of the CQI according to the second initial value of the CQI and the strategy for adjusting the CQI.
  • the determination of the CQI adjustment amount based on the demodulation result of the N decoded transport blocks and the preset adjustment amount corresponding to the demodulation result includes :
  • a is the CQI adjustment corresponding to successful decoding
  • n1 is the number of successful decoding
  • b is the adjustment of failed decoding
  • n2 is the number of failed decoding
  • n1+n2 N.
  • the determination of the CQI adjustment amount based on the demodulation result of the N decoded transport blocks and the preset adjustment amount corresponding to the demodulation result includes :
  • f(k) is the k-th scheduling adjustment amount
  • ⁇ is the preset adjustment amount corresponding to the previous demodulation result
  • demodulation success ⁇ a
  • demodulation failure ⁇ -b.
  • the strategy for adjusting the CQI is determined according to the foreground service type, including: the current service type is a delay-sensitive service, and the CQI adjustment strategy is to change the CQI The value of is changed to the first preset value to be reported; or, if the current service type is a delay-sensitive service, the CQI adjustment strategy is: if the first initial value of the CQI is greater than the first threshold, then the CQI is reported The value is equal to the first initial value of the CQI minus the first threshold. If the first initial value of the CQI is less than or equal to the first threshold, the reported value of the CQI is equal to the second preset value.
  • a terminal device in a second aspect, may be a terminal device, a chip or module in the terminal device, or a chip or a system-on-chip.
  • the terminal device includes: a processing unit configured to respond to downlink The reference signal determines the first initial value of the CQI; the processing unit is also used to determine the adjustment amount of the CQI according to the demodulation results of the N transport blocks and/or the foreground service type, and each transport block is used to transmit data signals, N Greater than or equal to 1; the processing unit is further configured to determine a CQI report value according to the first initial value of the CQI and the CQI adjustment amount, and the CQI report value is the CQI value sent by the terminal device to the access network device.
  • the processing unit is specifically configured to: determine the The amount of CQI adjustment.
  • the processing unit is specifically configured to:
  • a is the CQI adjustment corresponding to successful decoding
  • n1 is the number of successful decoding
  • b is the adjustment of failed decoding
  • n2 is the number of failed decoding
  • n1+n2 N.
  • the processing unit is specifically configured to:
  • f(k) is the k-th scheduling adjustment amount
  • ⁇ is the preset adjustment amount corresponding to the previous demodulation result
  • demodulation success ⁇ a
  • demodulation failure ⁇ -b.
  • the processing unit is specifically configured to: determine a CQI adjustment strategy according to the foreground service type; and determine the CQI adjustment amount according to the CQI adjustment strategy.
  • the processing unit is specifically configured to: the current service type is a delay-sensitive service, and the CQI adjustment strategy is to change the CQI value to the first preset Set the value to be reported; or the current service type is a delay-sensitive service, the CQI adjustment strategy is: if the first initial value of the CQI is greater than the first threshold, then the reported value of the CQI is equal to the first initial value of the CQI The first threshold value is subtracted from the value, and if the first initial value of the CQI is less than or equal to the first threshold value, the reported value of the CQI is equal to the second preset value.
  • the processing unit is specifically configured to: determine the CQI adjustment amount; according to the first initial value of the CQI and the CQI adjustment amount, the second initial value of the CQI; according to the foreground service type, determine the strategy for adjusting the CQI; according to the second initial value and adjustment of the CQI
  • the CQI strategy determines the reported value of the CQI.
  • the processing unit is specifically configured to:
  • a is the CQI adjustment amount corresponding to successful decoding
  • n1 is the number of successful decoding
  • b is the adjustment amount of failed decoding
  • n2 is the number of failed decoding
  • n1+n2 N.
  • the processing unit is specifically configured to:
  • f(k) is the k-th scheduling adjustment amount
  • ⁇ is the preset adjustment amount corresponding to the previous demodulation result
  • demodulation success ⁇ a
  • demodulation failure ⁇ -b.
  • the processing unit is specifically configured to: the current service type is a delay-sensitive service, and the CQI adjustment strategy is to change the CQI value to the first preset Set the value to be reported; or the current service type is a delay-sensitive service, the CQI adjustment strategy is: if the first initial value of the CQI is greater than the first threshold, then the reported value of the CQI is equal to the first initial value of the CQI The first threshold value is subtracted from the value, and if the first initial value of the CQI is less than or equal to the first threshold value, the reported value of the CQI is equal to the second preset value.
  • a communication device including a processor, the processor is connected to a memory, the memory is used to store a computer program, and the processor is used to execute the computer program stored in the memory, so that the device executes the above-mentioned first A method in one aspect or any possible implementation of the first aspect.
  • a computer-readable storage medium stores a computer program. When the computer program is run, it implements the first aspect or any possible implementation of the first aspect. method.
  • a chip which is characterized by comprising a processor and an interface; the processor is configured to read instructions to execute the foregoing first aspect or any possible implementation method of the first aspect.
  • the chip may further include a memory in which instructions are stored, and the processor is configured to execute instructions stored in the memory or instructions derived from other sources.
  • Fig. 1 is a schematic diagram of an application scenario of an embodiment of the present application
  • Figure 2 shows a schematic diagram of a scenario where pilot signals collide with neighboring cells of the same frequency
  • Fig. 3 is a schematic flowchart of a method for adjusting a channel quality index CQI according to an embodiment of the present application
  • FIG. 4 is a schematic flowchart of a method for adjusting a channel quality index CQI according to an embodiment of the present application
  • FIG. 5 is a schematic flowchart of a method for adjusting a channel quality index CQI according to an embodiment of the present application
  • Fig. 6 is a schematic block diagram of a communication device according to an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a terminal device provided by this application.
  • GSM global system for mobile communications
  • CDMA code division multiple access
  • WCDMA broadband code division multiple access
  • GPRS general packet radio service
  • LTE long term evolution
  • LTE frequency division duplex FDD
  • TDD LTE Time division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX worldwide interoperability for microwave access
  • 5G fifth generation
  • the system or new radio (NR) can also be applied to the use of subsequent evolutionary systems, such as the sixth-generation 6G communication system, and even the higher-level seventh-generation 7G communication system.
  • the terminal equipment in the embodiments of this application may also be referred to as: user equipment (UE), mobile station (MS), mobile terminal (MT), 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, etc.
  • UE user equipment
  • MS mobile station
  • MT mobile terminal
  • 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, etc.
  • the terminal device can be a wireless terminal or a wired terminal.
  • a wireless terminal may be a device that provides voice and/or other service data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem.
  • a wireless terminal can communicate with one or more core networks via a radio access network (RAN).
  • the wireless terminal can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal For example, they can be portable, pocket-sized, handheld, computer-built or vehicle-mounted mobile devices that exchange language and/or data with the wireless access network.
  • PCS personal communication service
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • Wireless terminals can also be called systems, subscriber units (Subscriber Unit), subscriber stations (Subscriber Station), mobile stations (Mobile Station), mobile stations (Mobile), remote stations (Remote Station), remote terminals (Remote Terminal), Access terminal (Access Terminal), user terminal (User Terminal), user agent (User Agent), user equipment (User Device or User Equipment), mobile Internet device (mobile internet device, MID), wearable device, virtual reality (virtual) Reality, VR) equipment, augmented reality (AR) equipment, wireless terminals in industrial control, wireless terminals in self-driving, and wireless terminals in remote medical surgery , Wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home (smart home), in-vehicle devices, wearables A device, a terminal device in a 5G network or a terminal device in a public land mobile network (PLMN) that will evolve in the future, etc., which are not limited in the embodiment of the present application.
  • PLMN public land
  • wearable devices can also be referred to as wearable smart devices. It is a general term for using wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, Gloves, watches, clothing and shoes, etc.
  • a wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a kind of hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones.
  • the terminal device may also be a terminal device in the Internet of Things (IoT) system.
  • IoT Internet of Things
  • Its main technical feature is to pass items through communication technology. Connect with the network to realize the intelligent network of human-machine interconnection and interconnection of things.
  • the various terminal devices described above if they are located on the vehicle (for example, placed in the vehicle or installed in the vehicle), can be regarded as vehicle-mounted terminal equipment, for example, the vehicle-mounted terminal equipment is also called on-board unit (OBU). ).
  • OBU on-board unit
  • the terminal device may also include a relay. Or it can be understood that everything that can communicate with the base station can be regarded as a terminal device.
  • the access network device in the embodiment of the present application may be a device used to communicate with a terminal device, a base station, or an access point, or a network device, or may refer to the access network through one or more devices on the air interface.
  • Each sector is a device that communicates with the wireless terminal.
  • the network device can be used to convert received air frames and IP packets into each other, as a router between the wireless terminal and the rest of the access network, where the rest of the access network can include an Internet Protocol (IP) network.
  • IP Internet Protocol
  • the network equipment can also coordinate the attribute management of the air interface.
  • the access network equipment can be a base station (BTS) in Global System of Mobile Communications (GSM) or Code Division Multiple Access (CDMA), or it can be a broadband code division.
  • GSM Global System of Mobile Communications
  • CDMA Code Division Multiple Access
  • the base station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA) can also be an evolved NodeB (eNB or eNodeB) in an LTE system, or it can be a cloud radio access network (cloud radio).
  • the wireless controller in the access network, CRAN) scenario, or the access device can be a relay station, access point, in-vehicle device, wearable device, and access device in a 5G network or a network device in a future evolved PLMN network, etc. It may be an access point (access point, AP) in a WLAN, or a gNB in a new radio system (new radio, NR) system, and this embodiment of the application is not limited.
  • the network device can also be divided into a control unit (Control Unit, CU) and a data unit (Data Unit, DU). Under a CU, there can be multiple DUs, where each DU and terminal are The measurement report method described in the embodiment of the present application can be used.
  • the difference between the CU-DU separation scenario and the multi-TRP scenario is that the TRP is only a radio frequency unit or an antenna device, and the DU can implement the protocol stack function, for example, the DU can implement the physical layer function.
  • the access network device is a device in an access network (radio access network, RAN), or in other words, a RAN node that connects a terminal device to a wireless network.
  • RAN radio access network
  • the access network device can include: gNB, transmission reception point (TRP), evolved Node B (eNB), radio network controller (radio network controller) , RNC), Node B (Node B, NB), base station controller (BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved NodeB, or home Node B, HNB) ), baseband unit (BBU), or wireless fidelity (Wifi) access point (AP), etc.
  • TRP transmission reception point
  • eNB evolved Node B
  • RNC radio network controller
  • Node B Node B
  • BSC base station controller
  • BTS base transceiver station
  • BTS home base station
  • BBU baseband unit
  • Wifi wireless fidelity
  • the access network equipment provides services for the cell, and the terminal equipment communicates with the access network equipment through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell.
  • the cell may be an access network equipment (for example, a base station). ) Corresponding cell.
  • the cell can belong to a macro base station or a base station corresponding to a small cell.
  • the small cell here can include: metro cell, micro cell, pico cell ), femto cells, etc. These small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-rate data transmission services.
  • FIG. 1 shows a schematic diagram of an application scenario 100 of an embodiment of the present application.
  • an access network device 110 and a terminal device 120 are included.
  • the access network device 110 works in an evolved universal mobile communication system terrestrial radio access (evolved UMTS terrestrial radio access, E-UTRA) system, or works in an NR system, or works in a next-generation communication system or
  • E-UTRA evolved universal mobile communication system terrestrial radio access
  • the access network device 110 and the terminal device 120 can communicate through a Uu interface.
  • the terminal device 120 can send uplink data to the access network device 110
  • the access network device 110 can send downlink data to the terminal device 120.
  • the access network device in FIG. 1 is, for example, a base station.
  • the access network equipment corresponds to different equipment in different systems.
  • a 4G system it can correspond to an eNB
  • a 5G system it corresponds to an access network equipment in 5G, such as gNB.
  • the technical solutions provided by the embodiments of the present application can also be applied to future mobile communication systems. Therefore, the access network equipment in FIG. 1 can also correspond to the access network equipment in the future mobile communication system.
  • Figure 1 takes the access network equipment as a base station as an example. In fact, the access network equipment can refer to the previous introduction.
  • the communication system shown in FIG. 1 may also include more network nodes, such as other terminal equipment or access network equipment, and the access network equipment or terminal equipment included in the communication system shown in FIG. 1 may be the foregoing Various forms of access network equipment or terminal equipment.
  • the embodiments of the present application are not shown one by one in the figure.
  • CQI is used to quantify the quality of the downlink channel.
  • the CQI is estimated by the UE based on the downlink reference signal it receives. The UE reports the estimated CQI to the base station, and the base station selects an appropriate MCS to schedule the UE according to the CQI.
  • the calculation of the CQI is done by the UE.
  • neither the LTE nor the NR protocol clearly stipulates the calculation method of the CQI, and each terminal manufacturer selects a suitable algorithm to calculate the CQI according to its own understanding.
  • the calculation methods of various manufacturers may be different in implementation, the basic principles are the same. All are based on Shannon's theorem, as shown in formula (1):
  • C is the channel capacity
  • B is the spectrum bandwidth
  • S/N is the signal-to-noise ratio.
  • the size of the channel capacity is only related to the signal-to-noise ratio on the channel. Therefore, in order to use the channel as much as possible, it is necessary to adjust the amount of information transmitted to the upper limit of the channel capacity according to the signal-to-noise ratio on the channel. Therefore, calculating and reporting the CQI is actually calculating and reporting the signal to interference plus noise ratio (SINR) of the UE.
  • SINR signal to interference plus noise ratio
  • the LTE system it is generally selected to calculate the cell-specific reference signals (CRS) to calculate the SINR, and then the calculated SINR is mapped to a CQI value from 0 to 15; in the NR system, the downlink reference is generally selected
  • the channel state information reference signal (CSI-RS) signal of the signal is used to calculate the SINR, and then the calculated SINR is mapped to a CQI value from 0-15.
  • CSI-RS channel state information reference signal
  • the access network device After the access network device receives the CQI reported by the terminal device, it selects the appropriate modulation mode, code rate, and transmission block size and other parameters based on the value. Taking the LTE system as an example, the corresponding relationship between CQI, modulation mode, and code rate is shown in Table 1.
  • QPSK, 16QAM, and 64QAM in the table are different modulation methods, which are Quadrature Phase Shift Keying (QPSK), and one symbol represents 2bit, 16 Quadrature Amplitude Modulation (16 Quadrature Amplitude Modulation, 16QAM), one symbol represents 4bit, 64 Quadrature Amplitude Modulation (64 Quadrature Amplitude Modulation, 64QAM, one symbol represents 6bit.
  • QPSK Quadrature Phase Shift Keying
  • An outer loop adjustment mechanism can be introduced. After obtaining the MCS directly mapped by the CQI, the access network device will, according to the demodulation result reported by the UE, give an Acknowledgement (ACK) Negative-Acknowledgment (NACK) feedback to make further adjustments to the MCS. Each time the access network device receives an ACK from the UE, it adjusts a value upward based on the original MCS; accordingly, each time the access network device receives a NACK, it adjusts downward based on the original MCS. A value. The adjusted MCS is used as the final value for scheduling, so that the UE's bit error rate can be controlled at an expected value.
  • ACK Acknowledgement
  • NACK Negative-Acknowledgment
  • FIG. 2 shows a schematic diagram of a scenario where pilot signals collide with neighboring cells of the same frequency.
  • a proper MCS causes a decrease in throughput.
  • FIG. 3 is a schematic flowchart of a method 200 for adjusting the channel quality index CQI according to an embodiment of the application.
  • the method 200 can be applied in The scenario shown in FIG. 1 can of course also be applied to other communication scenarios, and the embodiment of the present application does not limit it here.
  • the method is described by taking the terminal device as the executor of the execution method as an example.
  • the execution subject of the method may also be a chip, a chip system, or a processor applied to a terminal device.
  • the method 200 shown in FIG. 3 may include S210 to S230.
  • the steps in the method 200 will be described in detail below in conjunction with FIG. 3.
  • the terminal device determines a first initial value of the CQI according to the downlink reference signal.
  • the terminal device determines the CQI adjustment amount according to the demodulation results of the N transmission blocks and/or the foreground service type. Each transmission block is used to transmit a data signal, and N is greater than or equal to 1.
  • the terminal device determines a CQI report value according to the first initial value of the CQI and the CQI adjustment amount, and the CQI report value is the CQI value sent by the terminal device to the access network device.
  • the terminal device determines the first initial value of the CQI according to the downlink reference signal, and the terminal device determines the adjustment amount of the CQI according to the demodulation results of the N data transmission blocks and/or the foreground service type, and according to the first initial value of the CQI
  • the CQI report value is determined, which avoids that only the downlink reference signal is used to determine the CQI report value and the selected MCS is not accurate enough, which can further improve the communication quality.
  • the determining the CQI adjustment amount according to the demodulation results of the N transport blocks includes: according to the demodulation results of the N transport blocks that have been decoded and the preset adjustment amount corresponding to the demodulation results , To determine the adjustment amount of the CQI.
  • the terminal device uses the current demodulation of N transport blocks (Transport Block, TB) to adjust the first initial value of the CQI before reporting.
  • N transport blocks Transport Block, TB
  • FIG. 4 is a schematic flowchart of a method 300 for adjusting a channel quality index CQI according to an embodiment of the present application.
  • the method 300 shown in FIG. 4 may include S301 to S309.
  • each step in the method 300 will be described in detail with reference to FIG. 4.
  • the terminal device determines the first initial value of the CQI according to the downlink reference signal.
  • S303 The terminal device determines whether the first initial value of the CQI needs to be adjusted.
  • the terminal device can determine whether the first initial value of the CQI needs to be adjusted according to the service type and other factors. If the terminal device determines that the first initial value of the CQI needs to be adjusted, step S307 is entered, and the terminal device determines the reported value of the CQI according to the first initial value of the CQI and the adjustment amount of the CQI; if the terminal device determines that the first initial value of the CQI is not needed To adjust the first initial value of the CQI, step S308 is entered, and the terminal device reports the reported value of the CQI to the access network device.
  • S304 The terminal device obtains demodulation results of N TB blocks.
  • the terminal device determines the CQI adjustment amount according to the demodulation results of the N transport blocks.
  • S306 The terminal device determines whether it is necessary to adjust the first initial value of the CQI according to the adjustment amount of the CQI.
  • the terminal device may preset a reference value, and if the adjustment amount of the CQI is greater than the preset reference value, the terminal device determines that the first initial value of the CQI needs to be adjusted according to the adjustment amount of the CQI, and then proceeds to step S307: If the adjustment amount of the CQI is less than or equal to the preset reference value, the terminal device determines that it is not necessary to adjust the first initial value of the CQI according to the adjustment amount of the CQI, and then proceeds to step S304.
  • the reference value is 2, if the calculated CQI adjustment is greater than 2, the first initial value of the CQI needs to be adjusted, and if the calculated CQI adjustment is less than or equal to 2, the first initial value of the CQI does not need to be adjusted .
  • the terminal device determines the reported value of the CQI according to the first initial value of the CQI and the adjustment amount of the CQI.
  • S308 The terminal equipment reports the reported value of the CQI to the access network equipment.
  • the above method 300 generally describes the process in which the terminal device uses the current demodulation of N transport blocks (Transport Block, TB) to adjust the first initial value of the CQI before reporting.
  • N transport blocks Transport Block, TB
  • the following describes in detail how to determine the CQI adjustment amount according to the demodulation results of the N decoded transport blocks and the preset adjustment amount corresponding to the demodulation result.
  • the CQI adjustment amount can be determined according to formula (3):
  • a is the CQI adjustment corresponding to successful decoding
  • n1 is the number of successful decoding
  • b is the adjustment of failed decoding
  • n2 is the number of failed decoding
  • n1+n2 N.
  • the CQI adjustment amount can be determined according to formula (4):
  • f(k) is the k-th scheduling adjustment amount
  • ⁇ is the preset adjustment amount corresponding to the previous demodulation result
  • CQIinit is the first initial value of CQI, and the result is rounded up as the final value and reported to the base station.
  • the terminal device determines the CQI adjustment amount according to the foreground service type, including: determining the CQI adjustment strategy according to the foreground service type; and determining the CQI adjustment amount according to the CQI adjustment strategy.
  • the terminal device adjusts the first initial value of the CQI according to the foreground service type before reporting it.
  • FIG. 5 is a schematic flowchart of a method 400 for adjusting a channel quality index CQI according to an embodiment of the present application.
  • the method 400 shown in FIG. 5 may include S401 to S407. Each step in the method 400 will be described in detail below with reference to FIG. 5.
  • the terminal device identifies the type of foreground service.
  • the terminal device determines the first initial value of the CQI according to the downlink reference signal.
  • S404 The terminal device determines whether the first initial value of the CQI needs to be adjusted.
  • S405 When the terminal device needs to adjust the first initial value of the CQI, adjust the reported value of the CQI according to the CQI adjustment strategy.
  • the terminal device reports the reported value of the CQI. It should be understood that the terminal device directly reports the first initial value of the CQI when it does not need to adjust the first initial value of the CQI.
  • the above method 400 generally describes the process in which the terminal device adjusts the first initial value of the CQI according to the foreground service type and then reports it.
  • the following describes in detail how to determine the CQI adjustment strategy to adjust the first initial value of the CQI according to the foreground service type.
  • the service type of the current service is a delay-sensitive service
  • the strategy for adjusting CQI is to change the CQI value to the first preset value for reporting; or, the service type of the current service is a delay-sensitive service
  • the CQI adjustment strategy is: if the first initial value of the CQI is greater than the first threshold, the reported value of the CQI is equal to the first initial value of the CQI minus the first threshold, and if the first initial value of the CQI is If the value is less than or equal to the first threshold, the reported value of the CQI is equal to the second preset value.
  • the application layer of the terminal device recognizes the business currently in the foreground of the system and determines whether the business is a delay-sensitive business; if it is a delay-sensitive business, the operating system of the terminal device informs the baseband through AT commands, etc.
  • the modem chip adjusts the CQI estimation report strategy; according to different strategies, the CQI report value is reduced.
  • first preset value the second preset value, and the first threshold may be determined according to specific service types.
  • the front-end business is a game business, which is a delay-sensitive business, which needs to reduce decoding errors and has low delay. Therefore, CQI can be reduced to reduce decoding errors and reduce delay.
  • the terminal device can determine the CQI adjustment amount according to the demodulation results of the N transport blocks and the foreground service type, including: corresponding to the demodulation results according to the demodulation results of the N transport blocks that have been decoded Determine the CQI adjustment amount; according to the first initial value of the CQI and the CQI adjustment amount, the second initial value of the CQI; determine the CQI adjustment strategy according to the foreground service type; The second initial value of the CQI and the CQI adjustment strategy determine the reported value of the CQI.
  • the second initial value of the CQI can refer to the relevant steps of the method 300; according to the foreground service type, the determination of the CQI adjustment strategy can refer to the relevant steps of the method 400, I won't repeat them here.
  • FIG. 6 shows a schematic block diagram of a communication device 500 according to an embodiment of the present application.
  • the apparatus 500 may be a terminal device, or a chip or circuit, for example, a chip or circuit that can be provided in a terminal device.
  • the apparatus 500 may include a processing unit 510 (that is, an example of a processor) and a transceiver unit 530.
  • the processing unit 510 may also be referred to as a determining unit.
  • the transceiver unit 530 may include a receiving unit and a sending unit.
  • the transceiver unit 530 may be implemented by a transceiver or a transceiver-related circuit or interface circuit.
  • the device may further include a storage unit 520.
  • the storage unit 520 is used to store instructions.
  • the storage unit may also be used to store data or information.
  • the storage unit 520 may be implemented by a memory.
  • the processing unit 510 is configured to execute the instructions stored in the storage unit 520, so that the apparatus 500 implements the steps performed by the terminal device in the foregoing method.
  • the processing unit 510 may be used to call the data of the storage unit 520, so that the apparatus 500 implements the steps performed by the terminal device in the foregoing method.
  • the processing unit 510 is configured to execute the instructions stored in the storage unit 520, so that the apparatus 500 implements the steps performed by the access network device in the foregoing method.
  • the processing unit 510 may be used to call the data of the storage unit 520, so that the apparatus 500 implements the steps performed by the access network device in the foregoing method.
  • the processing unit 510, the storage unit 520, and the transceiving unit 530 can communicate with each other through an internal connection path to transfer control and/or data signals.
  • the storage unit 520 is used to store a computer program, and the processing unit 510 can be used to call and run the calculation program from the storage unit 520 to control the transceiver unit 530 to receive and/or send signals to complete the above method. Steps for terminal equipment or access network equipment.
  • the storage unit 520 may be integrated in the processing unit 510, or may be provided separately from the processing unit 510.
  • the transceiver unit 530 includes a receiver and a transmitter.
  • the receiver and the transmitter may be the same or different physical entities. When they are the same physical entity, they can be collectively referred to as transceivers.
  • the transceiving unit 530 can be a transmitting unit or a transmitter when sending information, the transceiving unit 530 can be a receiving unit or a receiver when receiving information, and the transceiving unit can be a transceiver.
  • the transceiver, The transmitter or receiver may be a radio frequency circuit.
  • the device includes a storage unit, the storage unit is used to store computer instructions.
  • the processor is in communication connection with the memory, and the processor executes the computer instructions stored in the memory so that the device can execute the method. 200. Method 500 or Method 600.
  • the processor may be a general-purpose central processing unit (CPU), a microprocessor, or an application specific integrated circuit (ASIC).
  • the transceiver unit 530 includes an input interface and an output interface.
  • the transceiver unit 530 may be an input and/or output interface, a pin or a circuit, or the like.
  • the processing unit 510 can execute computer-executable instructions stored in the storage unit, so that the apparatus can execute the method 200, the method 500, or the method 600.
  • the storage unit is a storage unit in the chip, such as a register, a cache, etc., and the storage unit may also be a storage unit in the terminal located outside the chip, such as a read-only memory (Read Only Memory). Only Memory (ROM) or other types of static storage devices that can store static information and instructions, Random Access Memory (RAM), etc.
  • ROM Read Only Memory
  • RAM Random Access Memory
  • the function of the transceiving unit 530 may be implemented by a transceiving circuit or a dedicated chip for transceiving.
  • the processing unit 510 may be implemented by a dedicated processing chip, a processing circuit, a processing unit, or a general-purpose chip.
  • a general-purpose computer may be considered to implement the communication device (such as a terminal device or an access network device) provided in the embodiment of the present application. That is to say, the program code for realizing the functions of the processing unit 510 and the transceiving unit 530 is stored in the storage unit 520, and the general processing unit implements the functions of the processing unit 510 and the transceiving unit 530 by executing the code in the storage unit 520.
  • the apparatus 500 may be a terminal device, or a chip or circuit provided in the terminal device.
  • the processing unit 510 is configured to determine the first initial value of CQI according to the downlink reference signal; the processing unit 510 is also configured to determine the first initial value of CQI according to the N transmission blocks.
  • the demodulation result and/or foreground service type determines the CQI adjustment amount.
  • Each transmission block is used to transmit data signals, and N is greater than or equal to 1.
  • the processing unit 510 is also used to determine the CQI adjustment amount according to the first initial value of the CQI and the CQI.
  • the reported value of the CQI is the CQI value sent by the terminal device to the access network device.
  • the processing unit 510 is specifically configured to determine the adjustment amount of the CQI according to the demodulation result of the N transport blocks that have been decoded and the preset adjustment amount corresponding to the demodulation result.
  • processing unit 510 is specifically configured to:
  • a is the CQI adjustment corresponding to successful decoding
  • n1 is the number of successful decoding
  • b is the adjustment of failed decoding
  • n2 is the number of failed decoding
  • n1+n2 N.
  • processing unit 510 is specifically configured to:
  • f(k) is the k-th scheduling adjustment amount
  • ⁇ is the preset adjustment amount corresponding to the previous demodulation result
  • the processing unit 510 is specifically configured to: determine a CQI adjustment strategy according to the foreground service type; and determine the CQI adjustment amount according to the CQI adjustment strategy.
  • the processing unit 510 is specifically configured to: the service type of the current service is a delay-sensitive service, and the strategy for adjusting the CQI is to change the CQI value to the first preset value for reporting; or
  • the service type is a delay-sensitive service, and the strategy for adjusting the CQI is: if the first initial value of the CQI is greater than the first threshold, the reported value of the CQI is equal to the first initial value of the CQI minus the first threshold, If the first initial value of the CQI is less than or equal to the first threshold, the reported value of the CQI is equal to the second preset value.
  • the processing unit 510 is specifically configured to: determine the adjustment amount of the CQI according to the demodulation result of the N transport blocks that have been decoded and the preset adjustment amount corresponding to the demodulation result; The first initial value of and the adjustment amount of the CQI, the second initial value of the CQI; the strategy for adjusting the CQI is determined according to the foreground service type; the reporting of the CQI is determined according to the second initial value of the CQI and the strategy for adjusting the CQI value.
  • processing unit 510 is specifically configured to:
  • a is the CQI adjustment corresponding to successful decoding
  • n1 is the number of successful decoding
  • b is the adjustment of failed decoding
  • n2 is the number of failed decoding
  • n1+n2 N.
  • processing unit 510 is specifically configured to:
  • f(k) is the k-th scheduling adjustment amount
  • ⁇ is the preset adjustment amount corresponding to the previous demodulation result
  • the processing unit 510 is specifically configured to: the service type of the current service is a delay-sensitive service, and the strategy for adjusting the CQI is to change the CQI value to the first preset value for reporting; or
  • the service type is a delay-sensitive service, and the strategy for adjusting the CQI is: if the first initial value of the CQI is greater than the first threshold, the reported value of the CQI is equal to the first initial value of the CQI minus the first threshold, If the first initial value of the CQI is less than or equal to the first threshold, the reported value of the CQI is equal to the second preset value.
  • each module or unit in the device 500 can be used to execute each action or processing procedure performed by the first terminal device in the above method.
  • the details are omitted. illustrate.
  • FIG. 7 is a schematic structural diagram of a terminal device 600 provided by this application.
  • the terminal device 600 can execute the actions performed by the terminal device in the foregoing method embodiments.
  • FIG. 7 only shows the main components of the terminal device.
  • the terminal device 600 includes a processor, a memory, a control circuit, an antenna, and an input and output device.
  • the processor is mainly used to process the communication protocol and communication data, and to control the entire terminal device, execute the software program, and process the data of the software program. For example, it is used to support the terminal device to execute the above-mentioned transmission precoding matrix instruction method embodiment.
  • the memory is mainly used to store software programs and data, for example, the codebook described in the above embodiments.
  • the control circuit is mainly used for the conversion of baseband signals and radio frequency signals and the processing of radio frequency signals.
  • the control circuit and the antenna together can also be called a transceiver, which is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by users and output data to users.
  • the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program.
  • the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal to the outside in the form of electromagnetic waves through the antenna.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data.
  • FIG. 7 only shows a memory and a processor. In an actual terminal device, there may be multiple processors and memories.
  • the memory may also be referred to as a storage medium or a storage device, etc., which is not limited in the embodiment of the present application.
  • the processor may include a baseband processor and a central processing unit.
  • the baseband processor is mainly used to process communication protocols and communication data.
  • the central processing unit is mainly used to control the entire terminal device, execute software programs, and process software programs. data.
  • the processor in FIG. 7 integrates the functions of the baseband processor and the central processing unit.
  • the baseband processor and the central processing unit may also be independent processors and are interconnected by technologies such as a bus.
  • the terminal device may include multiple baseband processors to adapt to different network standards, the terminal device may include multiple central processors to enhance its processing capabilities, and the various components of the terminal device may be connected through various buses.
  • the baseband processor may also be expressed as a baseband processing circuit or a baseband processing chip.
  • the central processing unit can also be expressed as a central processing circuit or a central processing chip.
  • the function of processing the communication protocol and the communication data can be built in the processor, or can be stored in the storage unit in the form of a software program, and the processor executes the software program to realize the baseband processing function.
  • the antenna and the control circuit with the transceiving function may be regarded as the transceiving unit 610 of the terminal device 600, and the processor with the processing function may be regarded as the processing unit 620 of the terminal device 600.
  • the terminal device 600 includes a transceiving unit 610 and a processing unit 620.
  • the transceiving unit may also be referred to as a transceiver, a transceiver, a transceiving device, and so on.
  • the device for implementing the receiving function in the transceiver unit 610 can be regarded as the receiving unit, and the device for implementing the sending function in the transceiver unit 610 can be regarded as the sending unit, that is, the transceiver unit includes a receiving unit and a sending unit.
  • the receiving unit may also be called a receiver, a receiver, a receiving circuit, etc.
  • the sending unit may be called a transmitter, a transmitter, or a transmitting circuit, etc.
  • the processor may be a central processing unit (central processing unit, CPU), and the processor may also be other general-purpose processors, digital signal processors (digital signal processors, DSP), and dedicated integration Circuit (application specific integrated circuit, ASIC), ready-made programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electrically available Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • static random access memory static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • Access memory synchronous DRAM, SDRAM
  • double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
  • enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
  • synchronous connection dynamic random access memory Take memory (synchlink DRAM, SLDRAM) and direct memory bus random access memory (direct rambus RAM, DR RAM).
  • the above-mentioned embodiments may be implemented in whole or in part by software, hardware, firmware or any other combination.
  • the above-mentioned embodiments may be implemented in the form of a computer program product in whole or in part.
  • the computer program product includes one or more computer instructions or computer programs.
  • the processes or functions described in the embodiments of the present application are generated in whole or in part.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website, computer, server or data center via wired (such as infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center that includes one or more sets of available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium.
  • the semiconductor medium may be a solid state drive.
  • the embodiments of the present application also provide a computer-readable medium on which a computer program is stored, and when the computer program is executed by a computer, the steps performed by the terminal device in any of the foregoing embodiments are implemented.
  • the embodiments of the present application also provide a computer program product, which, when executed by a computer, implements the steps executed by the terminal device in any of the foregoing embodiments.
  • An embodiment of the present application also provides a system chip, which includes: a communication unit and a processing unit.
  • the processing unit may be a processor, for example.
  • the communication unit may be, for example, a communication interface, an input/output interface, a pin or a circuit, or the like.
  • the processing unit can execute computer instructions, so that the chip in the communication device executes the steps performed by the terminal device provided in the embodiment of the present application.
  • the computer instructions are stored in a storage unit.
  • various aspects or features of the present application can be implemented as methods, devices, or products using standard programming and/or engineering techniques.
  • article of manufacture used in this application 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 (for example, hard disks, floppy disks, or tapes, etc.), optical disks (for example, compact discs (CD), digital versatile discs (DVD)) 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 for storing information.
  • machine-readable medium may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or data.
  • the disclosed system, device, and method can be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of the present application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .

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Abstract

本申请提供了一种调整信道质量指标CQI的方法和终端设备，该方法提高了接入网设备根据CQI来选择调制与编码方式MCS和码率的准确度。该方法包括：根据下行参考信号确定CQI的第一初始值；根据N个传输块的解调结果和/或前台业务类型，确定CQI的调整量，所述每个传输块用于传输数据信号，N大于等于1；根据所述CQI的第一初始值和所述CQI的调整量，确定CQI的上报值，所述CQI的上报值为所述终端设备发送给接入网设备的CQI值。

Description

一种调整信道质量指标CQI的方法和终端设备
本申请要求于2020年4月30日提交中国专利局、申请号为202010365672.8、申请名称为“一种调整信道质量指标CQI的方法和终端设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域，并且更具体的，涉及一种调整信道质量指标CQI的方法和终端设备。
背景技术
在LTE和NR系统中，都用信道质量指标(Channel Quality Indicator，CQI)来量化描述下行信道质量的好坏。CQI是终端设备(User Equipment，UE)根据其接收到的下行参考信号估计得到的。UE将估计得到的CQI上报给接入网设备，接入网设备根据CQI选择合适的调制与编码方式(Modulation and Coding Scheme，MCS)和码率等对该UE进行调度；或者接入网设备根据外环调整机制对该UE估计得到的CQI进行调整后再根据调整后的CQI选择合适的MCS和码率等对该UE进行调度，但这两种方式，选择的MCS和码率的准确度都不够高。
因此，如何调整信道质量指标CQI，从而提高根据CQI选择的MCS和码率的准确度是一项亟待解决的问题。
发明内容
本申请提供一种调整信道质量指标CQI的方法和终端设备，该调整信道质量指标CQI的方法提高了根据CQI选择的MCS和码率的准确度。
第一方面，提供了一种调整信道质量指标CQI的方法，该方法应用于终端设备，包括：根据下行参考信号确定CQI的第一初始值；根据N个传输块的解调结果和/或前台业务类型，确定CQI的调整量，该每个传输块用于传输数据信号，N大于等于1；根据该CQI的第一初始值和该CQI的调整量，确定CQI的上报值，该CQI的上报值为该终端设备发送给接入网设备的CQI值。
因此，终端设备根据下行参考信号确定CQI的第一初始值，终端设备再根据N个数据传输块的解调结果和/或前台业务类型，确定CQI的调整量，根据该CQI的第一初始值和该CQI的调整量，确定CQI的上报值，避免了仅使用下行参考信号确定CQI的上报值导致选择的MCS不够准确，可以进一步提高通信质量。
结合第一方面，在第一方面的某些实现方式中，该根据N个传输块的解调结果，确定CQI的调整量，包括：根据N个已经解码的传输块的解调结果和该解调结果对应的预设的调整量，确定该CQI的调整量。
因此，终端设备根据N个已经解码的传输块的解调结果和该解调结果对应的预设的调 整量，确定该CQI的调整量可以实时确定该CQI的调整量，进一步提高了接入网设备根据CQI的上报值选择的MCS的准确度，提高了通信质量。
结合第一方面，在第一方面的某些实现方式中，该根据N个已经解码的传输块的解调结果和该解调结果对应的预设的调整量，确定该CQI的调整量，包括：
根据式(1)确定CQI的调整量：
ΔCQI＝a*n1–b*n2               (1)
其中，a为解码成功对应的CQI调整量，n1为解码成功的次数，b为解码失败的调整量，n2为解码失败的次数，n1+n2＝N。
结合第一方面，在第一方面的某些实现方式中，该根据N个已经解码的传输块的解调结果和该解调结果对应的预设的调整量，确定该CQI的调整量，包括：
根据式(2)确定CQI的调整量：
ΔCQI＝f(k)＝c*f(k-1)+d*Δ             (2)
其中，f(k)为第k次调度的调整量，Δ为前一次解调结果对应的预设的调整量，解调成功Δ＝a，解调失败Δ＝-b。
结合第一方面，在第一方面的某些实现方式中，该根据前台业务类型，确定CQI的调整量，包括：根据前台业务类型，确定调整CQI的策略；根据该调整CQI的策略，确定该CQI的调整量。
基于前台的业务来选择合适的CQI上报策略，可以提高用户的业务体验度。
结合第一方面，在第一方面的某些实现方式中，该根据前台业务类型，确定调整CQI的策略，包括：当前业务的业务类型为时延敏感类业务，该调整CQI的策略为将CQI的值改为第一预设值上报；或者，当前业务的业务类型为时延敏感类业务，该调整CQI的策略为：如果该CQI的第一初始值大于第一阈值，则该CQI的上报值等于该CQI的第一初始值减去该第一阈值，如果该CQI的第一初始值小于或者等于该第一阈值，则该CQI的上报值等于第二预设值。
结合第一方面，在第一方面的某些实现方式中，该根据N个传输块的解调结果和前台业务类型，确定CQI的调整量，包括：根据N个已经解码的传输块的解调结果和该解调结果对应的预设的调整量，确定该CQI的调整量；根据该CQI的第一初始值和该CQI的调整量，该CQI的第二初始值；根据该前台业务类型，确定调整CQI的策略；根据该CQI的第二初始值和调整CQI的策略确定该CQI的上报值。
结合第一方面，在第一方面的某些实现方式中，该根据N个已经解码的传输块的解调结果和该解调结果对应的预设的调整量，确定该CQI的调整量，包括：
根据式(3)确定CQI的调整量：
ΔCQI＝a*n1–b*n2               (3)
其中，a为解码成功对应的CQI调整量，n1为解码成功的次数，b为解码失败的调整量，n2为解码失败的次数，n1+n2＝N。
结合第一方面，在第一方面的某些实现方式中，该根据N个已经解码的传输块的解调结果和该解调结果对应的预设的调整量，确定该CQI的调整量，包括：
根据式(4)确定CQI的调整量：
ΔCQI＝f(k)＝c*f(k-1)+d*Δ           (4)
其中，f(k)为第k次调度的调整量，Δ为前一次解调结果对应的预设的调整量，解调 成功Δ＝a，解调失败Δ＝-b。
结合第一方面，在第一方面的某些实现方式中，该根据前台业务类型，确定调整CQI的策略，包括：当前业务的业务类型为时延敏感类业务，该调整CQI的策略为将CQI的值改为第一预设值上报；或者，当前业务的业务类型为时延敏感类业务，该调整CQI的策略为：如果该CQI的第一初始值大于第一阈值，则该CQI的上报值等于该CQI的第一初始值减去该第一阈值，如果该CQI的第一初始值小于或者等于该第一阈值，则该CQI的上报值等于第二预设值。
第二方面，提供了一种终端设备，该终端设备可以是终端设备，也可以是终端设备内的芯片或模块，还可以是芯片或片上系统，该终端设备包括：处理单元，用于根据下行参考信号确定CQI的第一初始值；该处理单元还用于根据N个传输块的解调结果和/或前台业务类型，确定CQI的调整量，该每个传输块用于传输数据信号，N大于等于1；该处理单元还用于根据该CQI的第一初始值和该CQI的调整量，确定CQI的上报值，该CQI的上报值为该终端设备发送给接入网设备的CQI值。
结合第二方面，在第二方面的某些实现方式中，该处理单元具体用于：根据N个已经解码的传输块的解调结果和该解调结果对应的预设的调整量，确定该CQI的调整量。
结合第二方面，在第二方面的某些实现方式中，该处理单元具体用于：
根据式(5)确定CQI的调整量：
ΔCQI＝a*n1–b*n2            (5)
其中，a为解码成功对应的CQI调整量，n1为解码成功的次数，b为解码失败的调整量，n2为解码失败的次数，n1+n2＝N。
结合第二方面，在第二方面的某些实现方式中，该处理单元具体用于：
根据式(6)确定CQI的调整量：
ΔCQI＝f(k)＝c*f(k-1)+d*Δ             (6)
其中，f(k)为第k次调度的调整量，Δ为前一次解调结果对应的预设的调整量，解调成功Δ＝a，解调失败Δ＝-b。
结合第二方面，在第二方面的某些实现方式中，该处理单元具体用于：根据前台业务类型，确定调整CQI的策略；根据该调整CQI的策略，确定该CQI的调整量。
结合第二方面，在第二方面的某些实现方式中，该处理单元具体用于：当前业务的业务类型为时延敏感类业务，该调整CQI的策略为将CQI的值改为第一预设值上报；或者当前业务的业务类型为时延敏感类业务，该调整CQI的策略为：如果该CQI的第一初始值大于第一阈值，则该CQI的上报值等于该CQI的第一初始值减去该第一阈值，如果该CQI的第一初始值小于或者等于该第一阈值，则该CQI的上报值等于第二预设值。
结合第二方面，在第二方面的某些实现方式中，该处理单元具体用于：根据N个已经解码的传输块的解调结果和该解调结果对应的预设的调整量，确定该CQI的调整量；根据该CQI的第一初始值和该CQI的调整量，该CQI的第二初始值；根据该前台业务类型，确定调整CQI的策略；根据该CQI的第二初始值和调整CQI的策略确定该CQI的上报值。
结合第二方面，在第二方面的某些实现方式中，该处理单元具体用于：
根据式(7)确定CQI的调整量：
ΔCQI＝a*n1–b*n2            (7)
其中，a为解码成功对应的CQI调整量，n1为解码成功的次数，b为解码失败的调 整量，n2为解码失败的次数，n1+n2＝N。
结合第二方面，在第二方面的某些实现方式中，该处理单元具体用于：
根据式(8)确定CQI的调整量：
ΔCQI＝f(k)＝c*f(k-1)+d*Δ         (8)
其中，f(k)为第k次调度的调整量，Δ为前一次解调结果对应的预设的调整量，解调成功Δ＝a，解调失败Δ＝-b。
结合第二方面，在第二方面的某些实现方式中，该处理单元具体用于：当前业务的业务类型为时延敏感类业务，该调整CQI的策略为将CQI的值改为第一预设值上报；或者当前业务的业务类型为时延敏感类业务，该调整CQI的策略为：如果该CQI的第一初始值大于第一阈值，则该CQI的上报值等于该CQI的第一初始值减去该第一阈值，如果该CQI的第一初始值小于或者等于该第一阈值，则该CQI的上报值等于第二预设值。
第三方面，提供了一种通信装置，包括处理器，该处理器与存储器相连，该存储器用于存储计算机程序，该处理器用于执行该存储器中存储的计算机程序，以使得该装置执行上述第一方面或第一方面的任意可能的实现方式中的方法。
第四方面，提供了一种计算机可读存储介质，该计算机可读存储介质存储有计算机程序，当该计算机程序被运行时，实现上述第一方面或第一方面的任意可能的实现方式中的方法。
第五方面，提供了一种芯片，其特征在于，包括处理器和接口；该处理器用于读取指令以执行上述第一方面或第一方面的任意可能的实现方式中的方法。
可选地，该芯片还可以包括存储器，该存储器中存储有指令，处理器用于执行存储器中存储的指令或源于其他的指令。
附图说明
图1是本申请实施例的一种应用场景的示意图；
图2示出了同频邻区导频信号碰撞的场景示意图；
图3是本申请实施例的一种调整信道质量指标CQI的方法的示意性流程图；
图4是本申请实施例的一种调整信道质量指标CQI的方法的示意性流程图；
图5是本申请实施例的一种调整信道质量指标CQI的方法的示意性流程图；
图6是本申请实施例的通信装置的示意性框图；
图7为本申请提供的一种终端设备的结构示意图。
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。
为了更好地理解本申请，首先对本申请实施例可能出现的术语进行解释。
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、第五代(5th generation，5G)系统或新无线(new radio，NR)，此外，还可以适用于使用后续的演进系统，如第六代6G通信系统、甚至更高级的第七代7G通信系统等。
本申请实施例中的终端设备也可以称为：用户设备(user equipment，UE)、移动台(mobile station，MS)、移动终端(mobile terminal，MT)、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等。
终端设备可以是无线终端也可以是有线终端。无线终端可以是指向用户提供语音和/或其他业务数据连通性的设备，具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备。无线终端可以经无线接入网(Radio Access Network，RAN)与一个或多个核心网进行通信，无线终端可以是移动终端，如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。例如，个人通信业务(Personal Communication Service，PCS)电话、无绳电话、会话发起协议(Session Initiation Protocol，SIP)话机、无线本地环路(Wireless Local Loop，WLL)站、个人数字助理(Personal Digital Assistant，PDA)等设备。无线终端也可以称为系统、订户单元(Subscriber Unit)、订户站(Subscriber Station)，移动站(Mobile Station)、移动台(Mobile)、远程站(Remote Station)、远程终端(Remote Terminal)、接入终端(Access Terminal)、用户终端(User Terminal)、用户代理(User Agent)、用户设备(User Device or User Equipment)，移动互联网设备(mobile internet device，MID)、可穿戴设备，虚拟现实(virtual reality，VR)设备、增强现实(augmented reality，AR)设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端、车载设备、可穿戴设备，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。
作为示例而非限定，在本申请实施例中，可穿戴设备也可以称为穿戴式智能设备，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能首饰等。
此外，在本申请实施例中，终端设备还可以是物联网(internet of things，IoT)系统中的终端设备，IoT是未来信息技术发展的重要组成部分，其主要技术特点是将物品通过通信技术与网络连接，从而实现人机互连，物物互连的智能化网络。
而如上介绍的各种终端设备，如果位于车辆上(例如放置在车辆内或安装在车辆内)，都可以认为是车载终端设备，车载终端设备例如也称为车载单元(on-board unit，OBU)。
本申请实施例中，终端设备还可以包括中继(relay)。或者理解为，能够与基站进行数据通信的都可以看作终端设备。
本申请实施例中的接入网设备可以是用于与终端设备通信的设备，可以是基站，或者接入点，或者网络设备，或者可以是指接入网中在空中接口上通过一个或多个扇区与无线终端通信的设备。网络设备可用于将收到的空中帧与IP分组进行相互转换，作为无线终端与接入网的其余部分之间的路由器，其中接入网的其余部分可包括网际协议(IP)网络。网络设备还可协调对空中接口的属性管理。例如，接入网设备可以是全球移动通讯(Global System of Mobile communication，GSM)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)中的基站(NodeB，NB)，也可以是LTE系统中的演进型基站(evolved 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，或者该接入设备可以为中继站、接入点、车载设备、可穿戴设备以及5G网络中的接入设备或者未来演进的PLMN网络中的网络设备等，可以是WLAN中的接入点(access point，AP),可以是新型无线系统(new radio，NR)系统中的gNB本申请实施例并不限定。需要说明的是，对于5G系统，在一个基站下，可能存在一个或多个发送接收点(Transmission Reception Point，TRP)，所有的TRP属于同一个小区，其中，每个TRP和终端都可以使用本申请实施例该的测量上报方法。在另一种场景下，网络设备还可以分为控制单元(Control Unit，CU)和数据单元(Data Unit，DU)，在一个CU下，可以存在多个DU，其中，每个DU和终端都可以使用本申请实施例该的测量上报方法。CU-DU分离场景和多TRP场景的区别在于，TRP只是一个射频单元或一个天线设备，而DU中可以实现协议栈功能，例如DU中可以实现物理层功能。
另外，在本申请实施例中，接入网设备是接入网(radio access network，RAN)中的设备，或者说，是将终端设备接入到无线网络的RAN节点。例如，作为示例而非限定，作为接入网设备，可以列举：gNB、传输接收点(transmission reception point，TRP)、演进型节点B(evolved Node B，eNB)、无线网络控制器(radio network controller，RNC)、节点B(Node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station，BTS)、家庭基站(例如，home evolved NodeB，或home Node B，HNB)、基带单元(base band unit，BBU)，或无线保真(wireless fidelity，Wifi)接入点(access point，AP)等。
接入网设备为小区提供服务，终端设备通过该小区使用的传输资源(例如，频域资源，或者说，频谱资源)与接入网设备进行通信，该小区可以是接入网设备(例如基站)对应的小区，小区可以属于宏基站，也可以属于小小区(small cell)对应的基站，这里的小小区可以包括：城市小区(metro cell)、微小区(micro cell)、微微小区(pico cell)、毫微微小区(femto cell)等，这些小小区具有覆盖范围小、发射功率低的特点，适用于提供高速率的数据传输服务。
下面对本申请实施例的一种应用场景进行介绍，图1示出了本申请实施例的一种应用场景100的示意图。在图1中包括接入网设备110和终端设备120。其中，该接入网设备110例如工作在演进的通用移动通信系统陆地无线接入(evolved UMTS terrestrial radio access，E-UTRA)系统中，或者工作在NR系统中，或者工作在下一代通信系统或其他通信系统中，接入网设备110和终端设备120之间可以通过Uu接口通信。在该通信系统中，终端设备120可以发送上行数据给接入网设备110，接入网设备110可以发送下行数据给终端设备120。
图1中的接入网设备例如为基站。其中，接入网设备在不同的系统对应不同的设备，例如在4G系统中可以对应eNB，在5G系统中对应5G中的接入网设备，例如gNB。本申请实施例所提供的技术方案也可以应用于未来的移动通信系统中，因此图1中的接入网设备也可以对应未来的移动通信系统中的接入网设备。图1以接入网设备是基站为例，实际上接入网设备可以参考前文的介绍。
应理解，图1所示的通信系统中还可以包括更多的网络节点，例如其他终端设备或接入网设备，图1所示的通信系统中包括的接入网设备或者终端设备可以是上述各种形式的接入网设备或者终端设备。本申请实施例在图中不再一一示出。
本申请中的技术方案也可用于其他通信系统，本申请对此并不进行限定。
在LTE和NR系统中，都用CQI来量化描述下行信道质量的好坏。CQI一共有0到15共16个值，CQI值越大说明当前下行信道的质量越好。CQI是UE根据其接收到的下行参考信号估计得到的。UE将估计得到的CQI上报给基站，基站根据CQI选择合适的MCS对该UE进行调度。
CQI的计算由UE来完成。无论是在LTE还是在NR的协议中其实都没有对CQI的计算方法做明确的规定说明，由各个终端厂商根据自己的理解来选择适合的算法计算CQI。虽然各个厂商的计算方法可能实现上各不相同，但基本原理是相同的。都是根据香农定理，如式(1)所示：
C＝Blog2(1+S/N)             (1)
其中，C为信道容量，B为频谱带宽，S/N为信噪比，在带宽一定的频谱上，信道容量的大小只与信道上的信噪比相关。因此为了尽可能地利用信道，需要根据信道上的信噪比大小，调节传输的信息量至信道容量上限。因此计算并上报CQI实际上就是计算并上报UE的信号与干扰加噪声比(Signal to Interference plus Noise Ratio，SINR)。在LTE系统中，一般选择计算小区专属参考信号(Cell-specific reference signals，CRS)来计算SINR，然后将计算的SINR映射为0-15中的一个CQI值；在NR系统中，一般选择下行参考信号的信道状态信息参考信号(Channel-state information reference-signals，CSI-RS)信号来计算SINR，然后将计算的SINR映射为0-15中的一个CQI值。
接入网设备在收到终端设备上报的CQI后，会根据该值来选择合适的调制方式和码率以及传输块大小等参数。以LTE系统为例，CQI和调制方式、码率的对应关系如表1所示。
表1 CQI索引和调制方式、码率以及效率的对应关系
Figure PCTCN2021089983-appb-000001
其中，表中的QPSK、16QAM、64QAM是不同的调制方式，分别为四相相移键控(Quadrature Phase Shift Keying，QPSK)，一个符号代表2bit、16正交幅相调制(16 Quadrature Amplitude Modulation，16QAM)，一个符号代表4bit，64正交幅相调制(64 Quadrature Amplitude Modulation，64QAM，一个符号代表6bit。
接入网设备对UE上报的CQI处理方式一般有两种：
(1)直接用CQI映射为MCS用于下行调度。基站会维护一个CQI和MCS的映射表格，或者一个映射规则，根据上报的CQI得到对应的MCS后，直接将这个MCS用于对该UE的调度。一种典型的CQI和MCS的映射关系如式(2)所示：
Figure PCTCN2021089983-appb-000002
(2)可以引入一种外环调整机制。在得到CQI直接映射的MCS后，接入网设备会根据UE上报的解调结果，确认应答(Acknowledgement，ACK)否定应答(Negative-Acknowledgment，NACK)反馈来对MCS做进一步的调整。接入网设备每收到UE反馈上来的而一个ACK，就在原有MCS的基础上再向上调整一个值；相应的，接入网设备每收到一个NACK就在原有MCS的基础上向下调整一个值。调整后的MCS作为最终值用来调度，这样可以将UE的误码率控制在一个预期的值上。
接入网设备直接用CQI映射为MCS用于下行调度，该直接映射的MCS可能无法达到最优性能。如图2所示，图2示出了同频邻区导频信号碰撞的场景示意图。终端设备分别接收两个小区的信号，该两个小区的频率相同。以小区1为例，在小区1发送的信号的导频位置有邻区干扰，小区2也发送参考信号，终端设备根据下行参考信号，估计出SINR＝3，对应的CQI＝6，终端设备将估计得到的CQI＝6，上报接入网设备，接入网设备为UE配置 的MCS＝8，但是在小区1发送数据信号时，小区2没有发送数据信号，在小区1发送的信号的数据位置无邻区干扰，此时，SINR＝16，对应CQI＝11，实际UE在小区1发送的信号的数据位置可以解调MCS＝18的数据块，根据参考信号估计得到的CQI，并没有确定出合适的MCS，造成吞吐量的降低。
在有MCS外环调整的情况下，一些场景下性能也并不理想。如图2所示的场景中，虽然外环会将UE的MCS调高，但存在两个问题：
1)收敛时间较慢，遇到猝发业务或者UE信道变化较大的场景容易导致MCS震荡，影响时延和吞吐。
2)外环算法性能有限，CQI偏差较大的场景难以准确将MCS调整到位。
有鉴于此，本申请提出了一种调整信道质量指标CQI的方法。下面结合图3详细说明本申请提供的一种调整信道质量指标CQI的方法，图3是本申请实施例的一种调整信道质量指标CQI的方法200的示意性流程图，该方法200可以应用在图1所示的场景中，当然也可以应用在其他通信场景中，本申请实施例在此不作限制。
还应理解，在本申请实施例中，以终端设备作为执行方法的执行主体为例，对方法进行说明。作为示例而非限定，执行方法的执行主体也可以是应用于终端设备的芯片、芯片系统、或处理器等。
如图3所示，图3中示出的方法200可以包括S210至S230。下面结合图3详细说明方法200中的各个步骤。
S210，终端设备根据下行参考信号确定CQI的第一初始值。
S220，终端设备根据N个传输块的解调结果和/或前台业务类型，确定CQI的调整量，该每个传输块用于传输数据信号，N大于等于1。
S230，终端设备根据该CQI的第一初始值和该CQI的调整量，确定CQI的上报值，该CQI的上报值为该终端设备发送给接入网设备的CQI值。
因此，终端设备根据下行参考信号确定CQI的第一初始值，终端设备再根据N个数据传输块的解调结果和/或前台业务类型，确定CQI的调整量，根据该CQI的第一初始值和该CQI的调整量，确定CQI的上报值，避免了仅使用下行参考信号确定CQI的上报值导致选择的MCS不够准确，可以进一步提高通信质量。
在一种实现方式中，该根据N个传输块的解调结果，确定CQI的调整量，包括：根据N个已经解码的传输块的解调结果和该解调结果对应的预设的调整量，确定该CQI的调整量。
具体而言，该实现方式中，终端设备利用当前对N个传输块(Transport Block，TB)解调情况对CQI第一初始值进行调整后再上报。具体方法可以参考图4，图4是本申请实施例的一种调整信道质量指标CQI的方法300的示意性流程图。图4中示出的方法300可以包括S301至S309。下面结合图4详细说明方法300中的各个步骤。
S301，调整信道质量指标CQI的流程开始。
S302，终端设备根据下行参考信号确定CQI的第一初始值。
S303，终端设备确定是否需要调整该CQI的第一初始值。
在该步骤中，终端设备可以根据业务类型以及其他因素确定是否需要调整该CQI的第一初始值。如果该终端设备确定需要调整该CQI的第一初始值，则进入步骤S307，终端设备根据该CQI的第一初始值和该CQI的调整量，确定CQI的上报值；如果该终端设备确定不需要调整该CQI的第一初始值，则进入步骤S308，终端设备向接入网设备上报该CQI的上 报值。
S304，终端设备获取N个TB块的解调结果。
S305，终端设备根据N个传输块的解调结果确定CQI的调整量。
S306，终端设备确定是否需要根据该CQI的调整量来调整该CQI的第一初始值。
在该步骤中，终端设备可以预设参考数值，如果该CQI的调整量大于该预设参考数值，则终端设备确定需要根据该CQI的调整量来调整该CQI的第一初始值，则进入步骤S307；如果该CQI的调整量小于或者等于该预设参考数值，则终端设备确定不需要根据该CQI的调整量来调整该CQI的第一初始值，则进入步骤S304。例如参考数值为2，如果计算得到的CQI的调整量大于2则需要调整该CQI的第一初始值，如果计算得到的CQI的调整量小于或者等于2则不需要调整该CQI的第一初始值。
S307，终端设备根据该CQI的第一初始值和该CQI的调整量，确定CQI的上报值。
S308，终端设备向接入网设备上报该CQI的上报值。
S309，调整信道质量指标CQI的流程结束。
上述方法300整体说明了终端设备利用当前对N个传输块(Transport Block，TB)解调情况对CQI第一初始值进行调整后再上报的流程。下面详细介绍如何根据N个已经解码的传输块的解调结果和该解调结果对应的预设的调整量，确定该CQI的调整量。
在一种实现方式中，可以根据式(3)确定CQI的调整量：
ΔCQI＝a*n1–b*n2             (3)
其中，a为解码成功对应的CQI调整量，n1为解码成功的次数，b为解码失败的调整量，n2为解码失败的次数，n1+n2＝N。
在一种实现方式中，可以根据式(4)确定CQI的调整量：
ΔCQI＝f(k)＝c*f(k-1)+d*Δ               (4)
其中，f(k)为第k次调度的调整量，Δ为前一次解调结果对应的预设的调整量，解调成功Δ＝a，否则解调失败Δ＝-b。
当计算出ΔCQI后，可以根据式(5)确定CQI的上报值：
CQI＝CQIinit+ΔCQI             (5)
其中，CQIinit为CQI的第一初始值，对该结果取整作为最终值上报给基站。
在一种实现方式中，终端设备根据前台业务类型，确定CQI的调整量，包括：根据前台业务类型，确定调整CQI的策略；根据该调整CQI的策略，确定该CQI的调整量。
具体而言，该实现方式中，终端设备根据前台业务类型对CQI第一初始值进行调整后再上报。具体方法可以参考图5，图5是本申请实施例的一种调整信道质量指标CQI的方法400的示意性流程图。图5中示出的方法400可以包括S401至S407。下面结合图5详细说明方法400中的各个步骤。
S401，调整信道质量指标CQI的流程开始。
S402，终端设备识别前台业务类型。
S403，终端设备根据下行参考信号确定CQI的第一初始值。
S404，终端设备确定是否需要调整该CQI的第一初始值。
S405，终端设备在需要调整该CQI的第一初始值时，根据调整CQI的策略调整CQI的上报值。
S406，终端设备上报该CQI的上报值。应理解，终端设备在不需要调整该CQI的第一 初始值时，直接上报该CQI的第一初始值。
S407，调整信道质量指标CQI的流程结束。
上述方法400整体说明了终端设备根据前台业务类型对CQI第一初始值进行调整后再上报的流程。下面详细介绍如何根据前台业务类型，确定调整CQI的策略对CQI第一初始值进行调整。
在一种实现方式中，当前业务的业务类型为时延敏感类业务，该调整CQI的策略为将CQI的值改为第一预设值上报；或者，当前业务的业务类型为时延敏感类业务，该调整CQI的策略为：如果该CQI的第一初始值大于第一阈值，则该CQI的上报值等于该CQI的第一初始值减去该第一阈值，如果该CQI的第一初始值小于或者等于该第一阈值，则该CQI的上报值等于第二预设值。
具体而言，终端设备的应用层识别当前处在系统前台的业务，判断该业务是否属于时延敏感类业务；若为时延敏感业务，则终端设备的操作系统通过AT命令等方式，告知基带芯片Modem调整CQI估计上报策略；依据不同策略将CQI上报值减少。
应理解，上述该第一预设值、该第二预设值和该第一阈值可以根据具体业务类型进行确定。
为了更清楚的理解本申请实施例，下面简单举例描述两种调整CQI的策略：
1)直接将CQI的上报值改为1上报，其中1为第一预设值。
2)记CQI的第一初始值为a，上报值为b，则：如果a>3，则b＝a–3；如果a<＝3，则b＝1，其中，3位第一阈值，1为第二预设值。
如前台业务为游戏业务，该业务为时延敏感业务，需要减少解码错误，低时延，因此可以降低CQI来减少解码错误，降低时延。
基于前台的业务来选择合适的CQI上报策略，可以提高用户的业务体验度。
在一种实现方式中，终端设备可以根据N个传输块的解调结果和前台业务类型，确定CQI的调整量，包括：根据N个已经解码的传输块的解调结果和该解调结果对应的预设的调整量，确定该CQI的调整量；根据该CQI的第一初始值和该CQI的调整量，该CQI的第二初始值；根据该前台业务类型，确定调整CQI的策略；根据该CQI的第二初始值和调整CQI的策略确定该CQI的上报值。
根据该CQI的第一初始值和该CQI的调整量，该CQI的第二初始值，可以参考方法300的相关步骤；根据该前台业务类型，确定调整CQI的策略可以参考方法400的相关步骤，此处不再赘述。
以上结合图1至图5对本申请实施例的多卡终端设备的通信参数测量方法做了详细说明。以下，结合图6至图7对本申请实施例通信装置进行详细说明。
图6示出了本申请实施例的通信装置500的示意性框图。
一些实施例中，该装置500可以为终端设备，也可以为芯片或电路，比如可设置于终端设备的芯片或电路。
一种可能的方式中，该装置500可以包括处理单元510(即，处理器的一例)和收发单元530。一些可能的实现方式中，处理单元510还可以称为确定单元。一些可能的实现方式中，收发单元530可以包括接收单元和发送单元。
在一种实现方式中，收发单元530可以通过收发器或者收发器相关电路或者接口电路实现。
在一种实现方式中，该装置还可以包括存储单元520。一种可能的方式中，该存储单元520用于存储指令。在一种实现方式中，该存储单元也可以用于存储数据或者信息。存储单元520可以通过存储器实现。
一些可能的设计中，该处理单元510用于执行该存储单元520存储的指令，以使装置500实现如上述方法中终端设备执行的步骤。或者，该处理单元510可以用于调用存储单元520的数据，以使装置500实现如上述方法中终端设备执行的步骤。
一些可能的设计中，该处理单元510用于执行该存储单元520存储的指令，以使装置500实现如上述方法中接入网设备执行的步骤。或者，该处理单元510可以用于调用存储单元520的数据，以使装置500实现如上述方法中接入网设备执行的步骤。
例如，该处理单元510、存储单元520、收发单元530可以通过内部连接通路互相通信，传递控制和/或数据信号。例如，该存储单元520用于存储计算机程序，该处理单元510可以用于从该存储单元520中调用并运行该计算计程序，以控制收发单元530接收信号和/或发送信号，完成上述方法中终端设备或接入网设备的步骤。该存储单元520可以集成在处理单元510中，也可以与处理单元510分开设置。
可选地，若该装置500为通信设备(例如，终端设备，或接入网设备)，该收发单元530包括接收器和发送器。其中，接收器和发送器可以为相同或者不同的物理实体。为相同的物理实体时，可以统称为收发器。
当该装置500为终端设备时，收发单元530在发送信息时可以为发送单元或发射器，收发单元530在接收信息时可以为接收单元或接收器，收发单元可以为收发器，此收发器、发射器或接收器可以为射频电路，当该装置包含存储单元时，该存储单元用于存储计算机指令，该处理器与存储器通信连接，处理器执行存储器存储的计算机指令，使该装置可以执行方法200、方法500或者方法600。其中，处理器可以是一个通用中央处理器(CPU)，微处理器，特定应用集成电路(Application Specific Intergrated Circuit，ASIC)。
可选地，若该装置500为芯片或电路，该收发单元530包括输入接口和输出接口。
当该装置500为芯片时，收发单元530可以是输入和/或输出接口、管脚或电路等。该处理单元510可执行存储单元存储的计算机执行指令，以使该装置可以执行方法200、方法500或者方法600。可选地，所述存储单元为所述芯片内的存储单元，如寄存器、缓存等，所述存储单元还可以是所述终端内的位于所述芯片外部的存储单元，如只读存储器(Read Only Memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备，随机存取存储器(Random Access Memory，RAM)等。
作为一种实现方式，收发单元530的功能可以考虑通过收发电路或者收发的专用芯片实现。处理单元510可以考虑通过专用处理芯片、处理电路、处理单元或者通用芯片实现。
作为另一种实现方式，可以考虑使用通用计算机的方式来实现本申请实施例提供的通信设备(例如终端设备，或接入网设备)。即将实现处理单元510、收发单元530功能的程序代码存储在存储单元520中，通用处理单元通过执行存储单元520中的代码来实现处理单元510、收发单元530的功能。
一些实施例中，装置500可以为终端设备时，或设置于终端设备中的芯片或电路。当装置500为终端设备时，或设置于终端设备中的芯片或电路时，处理单元510用于根据下行参考信号确定CQI的第一初始值；该处理单元510还用于根据N个传输块的解调结果和/或前台业务类型，确定CQI的调整量，该每个传输块用于传输数据信号，N大于等于1；该处理 单元510还用于根据该CQI的第一初始值和该CQI的调整量，确定CQI的上报值，该CQI的上报值为该终端设备发送给接入网设备的CQI值。
在一种实现方式中，该处理单元510具体用于：根据N个已经解码的传输块的解调结果和该解调结果对应的预设的调整量，确定该CQI的调整量。
在一种实现方式中，该处理单元510具体用于：
根据式(6)确定CQI的调整量：
ΔCQI＝a*n1–b*n2              (6)
其中，a为解码成功对应的CQI调整量，n1为解码成功的次数，b为解码失败的调整量，n2为解码失败的次数，n1+n2＝N。
在一种实现方式中，该处理单元510具体用于：
根据式(7)确定CQI的调整量：
ΔCQI＝f(k)＝c*f(k-1)+d*Δ             (7)
其中，f(k)为第k次调度的调整量，Δ为前一次解调结果对应的预设的调整量，解调成功Δ＝a，否则Δ＝-b。
在一种实现方式中，该处理单元510具体用于：根据前台业务类型，确定调整CQI的策略；根据该调整CQI的策略，确定该CQI的调整量。
在一种实现方式中，该处理单元510具体用于：当前业务的业务类型为时延敏感类业务，该调整CQI的策略为将CQI的值改为第一预设值上报；或者当前业务的业务类型为时延敏感类业务，该调整CQI的策略为：如果该CQI的第一初始值大于第一阈值，则该CQI的上报值等于该CQI的第一初始值减去该第一阈值，如果该CQI的第一初始值小于或者等于该第一阈值，则该CQI的上报值等于第二预设值。
在一种实现方式中，该处理单元510具体用于：根据N个已经解码的传输块的解调结果和该解调结果对应的预设的调整量，确定该CQI的调整量；根据该CQI的第一初始值和该CQI的调整量，该CQI的第二初始值；根据该前台业务类型，确定调整CQI的策略；根据该CQI的第二初始值和调整CQI的策略确定该CQI的上报值。
在一种实现方式中，该处理单元510具体用于：
根据式(8)确定CQI的调整量：
ΔCQI＝a*n1–b*n2            (8)
其中，a为解码成功对应的CQI调整量，n1为解码成功的次数，b为解码失败的调整量，n2为解码失败的次数，n1+n2＝N。
在一种实现方式中，该处理单元510具体用于：
根据式(9)确定CQI的调整量：
ΔCQI＝f(k)＝c*f(k-1)+d*Δ             (9)
其中，f(k)为第k次调度的调整量，Δ为前一次解调结果对应的预设的调整量，解调成功Δ＝a，否则Δ＝-b。
在一种实现方式中，该处理单元510具体用于：当前业务的业务类型为时延敏感类业务，该调整CQI的策略为将CQI的值改为第一预设值上报；或者当前业务的业务类型为时延敏感类业务，该调整CQI的策略为：如果该CQI的第一初始值大于第一阈值，则该CQI的上报值等于该CQI的第一初始值减去该第一阈值，如果该CQI的第一初始值小于或者等于该第一阈值，则该CQI的上报值等于第二预设值。
当该装置500配置在或本身即为终端设备时，装置500中各模块或单元可以用于执行上述方法中第一终端设备所执行的各动作或处理过程，这里，为了避免赘述，省略其详细说明。
图7为本申请提供的一种终端设备600的结构示意图。该终端设备600可以执行上述方法实施例中终端设备执行的动作。
为了便于说明，图7仅示出了终端设备的主要部件。如图7所示，终端设备600包括处理器、存储器、控制电路、天线以及输入输出装置。
处理器主要用于对通信协议以及通信数据进行处理，以及对整个终端设备进行控制，执行软件程序，处理软件程序的数据，例如用于支持终端设备执行上述传输预编码矩阵的指示方法实施例中所描述的动作。存储器主要用于存储软件程序和数据，例如存储上述实施例中所描述的码本。控制电路主要用于基带信号与射频信号的转换以及对射频信号的处理。控制电路和天线一起也可以叫做收发器，主要用于收发电磁波形式的射频信号。输入输出装置，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。
当终端设备开机后，处理器可以读取存储单元中的软件程序，解释并执行软件程序的指令，处理软件程序的数据。当需要通过无线发送数据时，处理器对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到终端设备时，射频电路通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器，处理器将基带信号转换为数据并对该数据进行处理。
本领域技术人员可以理解，为了便于说明，图7仅示出了一个存储器和处理器。在实际的终端设备中，可以存在多个处理器和存储器。存储器也可以称为存储介质或者存储设备等，本申请实施例对此不做限制。
例如，处理器可以包括基带处理器和中央处理器，基带处理器主要用于对通信协议以及通信数据进行处理，中央处理器主要用于对整个终端设备进行控制，执行软件程序，处理软件程序的数据。图7中的处理器集成了基带处理器和中央处理器的功能，本领域技术人员可以理解，基带处理器和中央处理器也可以是各自独立的处理器，通过总线等技术互联。本领域技术人员可以理解，终端设备可以包括多个基带处理器以适应不同的网络制式，终端设备可以包括多个中央处理器以增强其处理能力，终端设备的各个部件可以通过各种总线连接。所述基带处理器也可以表述为基带处理电路或者基带处理芯片。所述中央处理器也可以表述为中央处理电路或者中央处理芯片。对通信协议以及通信数据进行处理的功能可以内置在处理器中，也可以以软件程序的形式存储在存储单元中，由处理器执行软件程序以实现基带处理功能。
示例性的，在本申请实施例中，可以将具有收发功能的天线和控制电路视为终端设备600的收发单元610，将具有处理功能的处理器视为终端设备600的处理单元620。如图7所示，终端设备600包括收发单元610和处理单元620。收发单元也可以称为收发器、收发机、收发装置等。可选的，可以将收发单元610中用于实现接收功能的器件视为接收单元，将收发单元610中用于实现发送功能的器件视为发送单元，即收发单元包括接收单元和发送单元。示例性的，接收单元也可以称为接收机、接收器、接收电路等，发送单元可以称为发射机、发射器或者发射电路等。
应理解，本申请实施例中，该处理器可以为中央处理单元(central processing unit，CPU)，该处理器还可以是其他通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现成可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
还应理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory，ROM)、可编程只读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM，EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的随机存取存储器(random access memory，RAM)可用，例如静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，DR RAM)。
上述实施例，可以全部或部分地通过软件、硬件、固件或其他任意组合来实现。当使用软件实现时，上述实施例可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令或计算机程序。在计算机上加载或执行所述计算机指令或计算机程序时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以为通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集合的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质。半导体介质可以是固态硬盘。
本申请实施例还提供了一种计算机可读介质，其上存储有计算机程序，该计算机程序被计算机执行时实现上述任一实施例中的终端设备执行的步骤。
本申请实施例还提供了一种计算机程序产品，该计算机程序产品被计算机执行时实现上述任一实施例中的终端设备执行的步骤。
本申请实施例还提供了一种系统芯片，该系统芯片包括：通信单元和处理单元。该处理单元，例如可以是处理器。该通信单元例如可以是通信接口、输入/输出接口、管脚或电路等。该处理单元可执行计算机指令，以使该通信装置内的芯片执行上述本申请实施例提供的终端设备执行的步骤。
可选地，该计算机指令被存储在存储单元中。
本申请中的各个实施例可以独立的使用，也可以进行联合的使用，这里不做限定。
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。
应理解，“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。“至少一个”是指一个或一个以上；“A和B中的至少一个”，类似于“A和/或B”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和B中的至少一个，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。
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 (23)

  1. 一种调整信道质量指标CQI的方法，所述方法应用于终端设备，其特征在于，包括：
    根据下行参考信号确定CQI的第一初始值；
    根据N个传输块的解调结果和/或前台业务类型，确定CQI的调整量，所述每个传输块用于传输数据信号，N大于等于1；
    根据所述CQI的第一初始值和所述CQI的调整量，确定CQI的上报值，所述CQI的上报值为所述终端设备发送给接入网设备的CQI值。
  2. 根据权利要求1所述的方法，其特征在于，所述根据N个传输块的解调结果，确定CQI的调整量，包括：
    根据N个已经解码的传输块的解调结果和所述解调结果对应的预设的调整量，确定所述CQI的调整量。
  3. 根据权利要求2所述的方法，其特征在于，所述根据N个已经解码的传输块的解调结果和所述解调结果对应的预设的调整量，确定所述CQI的调整量，包括：
    根据式(1)确定CQI的调整量：
    ΔCQI＝a*n1–b*n2    (1)
    其中，a为解码成功对应的CQI调整量，n1为解码成功的次数，b为解码失败的调整量，n2为解码失败的次数，n1+n2＝N。
  4. 根据权利要求2所述的方法，其特征在于，所述根据N个已经解码的传输块的解调结果和所述解调结果对应的预设的调整量，确定所述CQI的调整量，包括：
    根据式(2)确定CQI的调整量：
    ΔCQI＝f(k)＝c*f(k-1)+d*Δ    (2)
    其中，f(k)为第k次调度的调整量，Δ为前一次解调结果对应的预设的调整量，解调成功Δ＝a，解调失败Δ＝-b。
  5. 根据权利要求1所述的方法，其特征在于，所述根据前台业务类型，确定CQI的调整量，包括：
    根据前台业务类型，确定调整CQI的策略；
    根据所述调整CQI的策略，确定所述CQI的调整量。
  6. 根据权利要求5所述的方法，其特征在于，所述根据前台业务类型，确定调整CQI的策略，包括：
    当前业务的业务类型为时延敏感类业务，所述调整CQI的策略为将CQI的值改为第一预设值上报；或者，
    当前业务的业务类型为时延敏感类业务，所述调整CQI的策略为：
    如果所述CQI的第一初始值大于第一阈值，则所述CQI的上报值等于所述CQI的第一初始值减去所述第一阈值，如果所述CQI的第一初始值小于或者等于所述第一阈值，则所述CQI的上报值等于第二预设值。
  7. 根据权利要求1所述的方法，其特征在于，所述根据N个传输块的解调结果和前台业务类型，确定CQI的调整量，包括：
    根据N个已经解码的传输块的解调结果和所述解调结果对应的预设的调整量，确定所述CQI的调整量；
    根据所述CQI的第一初始值和所述CQI的调整量，所述CQI的第二初始值；
    根据所述前台业务类型，确定调整CQI的策略；
    根据所述CQI的第二初始值和调整CQI的策略确定所述CQI的上报值。
  8. 根据权利要求7所述的方法，其特征在于，所述根据N个已经解码的传输块的解调结果和所述解调结果对应的预设的调整量，确定所述CQI的调整量，包括：
    根据式(3)确定CQI的调整量：
    ΔCQI＝a*n1–b*n2    (3)
    其中，a为解码成功对应的CQI调整量，n1为解码成功的次数，b为解码失败的调整量，n2为解码失败的次数，n1+n2＝N。
  9. 根据权利要求7所述的方法，其特征在于，所述根据N个已经解码的传输块的解调结果和所述解调结果对应的预设的调整量，确定所述CQI的调整量，包括：
    根据式(4)确定CQI的调整量：
    ΔCQI＝f(k)＝c*f(k-1)+d*Δ    (4)
    其中，f(k)为第k次调度的调整量，Δ为前一次解调结果对应的预设的调整量，解调成功Δ＝a，解调失败Δ＝-b。
  10. 根据权利要求7至9中任一项所述的方法，其特征在于，所述根据前台业务类型，确定调整CQI的策略，包括：
    当前业务的业务类型为时延敏感类业务，所述调整CQI的策略为将CQI的值改为第一预设值上报；或者，
    当前业务的业务类型为时延敏感类业务，所述调整CQI的策略为：
    如果所述CQI的第一初始值大于第一阈值，则所述CQI的上报值等于所述CQI的第一初始值减去所述第一阈值，如果所述CQI的第一初始值小于或者等于所述第一阈值，则所述CQI的上报值等于第二预设值。
  11. 一种终端设备，其特征在于，包括：
    处理单元，用于根据下行参考信号确定CQI的第一初始值；
    所述处理单元还用于根据N个传输块的解调结果和/或前台业务类型，确定CQI的调整量，所述每个传输块用于传输数据信号，N大于等于1；
    所述处理单元还用于根据所述CQI的第一初始值和所述CQI的调整量，确定CQI的上报值，所述CQI的上报值为所述终端设备发送给接入网设备的CQI值。
  12. 根据权利要求11所述的终端设备，其特征在于，所述处理单元具体用于：
    根据N个已经解码的传输块的解调结果和所述解调结果对应的预设的调整量，确定所述CQI的调整量。
  13. 根据权利要求12所述的终端设备，其特征在于，所述处理单元具体用于：
    根据式(5)确定CQI的调整量：
    ΔCQI＝a*n1–b*n2    (5)
    其中，a为解码成功对应的CQI调整量，n1为解码成功的次数，b为解码失败的调整量，n2为解码失败的次数，n1+n2＝N。
  14. 根据权利要求2所述的终端设备，其特征在于，所述处理单元具体用于：
    根据式(6)确定CQI的调整量：
    ΔCQI＝f(k)＝c*f(k-1)+d*Δ    (6)
    其中，f(k)为第k次调度的调整量，Δ为前一次解调结果对应的预设的调整量，解调成功Δ＝a，解调失败Δ＝-b。
  15. 根据权利要求11所述的终端设备，其特征在于，所述处理单元具体用于：
    根据前台业务类型，确定调整CQI的策略；
    根据所述调整CQI的策略，确定所述CQI的调整量。
  16. 根据权利要求15所述的终端设备，其特征在于，所述处理单元具体用于：
    当前业务的业务类型为时延敏感类业务，所述调整CQI的策略为将CQI的值改为第一预设值上报；或者，
    当前业务的业务类型为时延敏感类业务，所述调整CQI的策略为：
    如果所述CQI的第一初始值大于第一阈值，则所述CQI的上报值等于所述CQI的第一初始值减去所述第一阈值，如果所述CQI的第一初始值小于或者等于所述第一阈值，则所述CQI的上报值等于第二预设值。
  17. 根据权利要求11所述的终端设备，其特征在于，所述处理单元具体用于：
    根据N个已经解码的传输块的解调结果和所述解调结果对应的预设的调整量，确定所述CQI的调整量；
    根据所述CQI的第一初始值和所述CQI的调整量，所述CQI的第二初始值；
    根据所述前台业务类型，确定调整CQI的策略；
    根据所述CQI的第二初始值和调整CQI的策略确定所述CQI的上报值。
  18. 根据权利要求17所述的终端设备，其特征在于，所述处理单元具体用于：
    根据式(7)确定CQI的调整量：
    ΔCQI＝a*n1–b*n2    (7)
    其中，a为解码成功对应的CQI调整量，n1为解码成功的次数，b为解码失败的调整量，n2为解码失败的次数，n1+n2＝N。
  19. 根据权利要求17所述的终端设备，其特征在于，所述处理单元具体用于：
    根据式(8)确定CQI的调整量：
    ΔCQI＝f(k)＝c*f(k-1)+d*Δ    (8)
    其中，f(k)为第k次调度的调整量，Δ为前一次解调结果对应的预设的调整量，解调成功Δ＝a，否则解调失败＝-b。
  20. 根据权利要求17至19中任一项所述的终端设备，其特征在于，所述处理单元具体用于：
    当前业务的业务类型为时延敏感类业务，所述调整CQI的策略为将CQI的值改为第一预设值上报；或者，
    当前业务的业务类型为时延敏感类业务，所述调整CQI的策略为：
    如果所述CQI的第一初始值大于第一阈值，则所述CQI的上报值等于所述CQI的第一初始值减去所述第一阈值，如果所述CQI的第一初始值小于或者等于所述第一阈值，则所述CQI的上报值等于第二预设值。
  21. 一种终端设备，包括处理器，所述处理器与存储器相连，所述存储器用于存储计算机程序，所述处理器用于执行所述存储器中存储的计算机程序，以使得所述装置执行如 权利要求1至10中任一项所述的方法。
  22. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质存储有计算机程序，当所述计算机程序被运行时，实现如权利要求1至10中任一项所述的方法。
  23. 一种芯片，其特征在于，包括处理器和接口；
    所述处理器用于读取指令以执行权利要求1至10中任一项所述的方法。
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