Method and apparatus for calculating and indicating channel quality indications - Patents.com

Abstract

An embodiment of the present invention provides a channel quality indication (CQI) calculation method, an indication method and an apparatus, which includes: a terminal device calculating a first channel quality indication (CQI) based on a first parameter; and a terminal device calculating a second channel quality indication (CQI) based on a second parameter.

Description

[Technical Field]

[0001] FIELD OF THE INVENTION Embodiments of the present invention relate to the field of communications technology. [Background technology]

[0002] As 5G becomes more widespread across industries and more geographic regions, it will require much higher data rates and denser networks to handle more advanced services, necessitating the use of more antennas, more bandwidth, and more frequency bands, resulting in ever-increasing energy consumption for 5G devices.

[0003] According to carrier statistics, the energy consumption of an average 5G base station is more than three times that of an LTE base station, and electricity bills account for approximately 50% of carriers' 5G network deployment costs. More importantly, 5G base stations still incur significant energy consumption overhead even when they are not in operation. Therefore, energy conservation in 5G networks is crucial for improving environmental sustainability, reducing environmental impact (e.g., reducing greenhouse gas emissions), and saving operational costs. Therefore, energy conservation in 5G networks is an urgent issue that needs to be addressed.

[0004] To achieve network energy saving, R18 has set up an agenda on network energy saving and is studying various energy saving technologies. In the study, network energy saving technologies can be divided into types such as time domain / frequency domain / spatial domain / energy domain energy saving. For example, spatial domain energy saving is dynamically adjusting the number of antennas, energy domain energy saving is dynamically adjusting data transmission power, and time domain energy saving is, for example, introducing cell DTX / DRX technology. Using various energy saving technologies can save a large amount of energy in network devices and / or terminal devices.

[0005] The above description of the background art is merely for the purpose of explaining the configuration of the present invention more clearly and completely, and is provided for the understanding of those skilled in the art. These configurations described in the background art of the present invention should not be construed as being well known to those skilled in the art. Summary of the Invention [Problem to be solved by the invention]

[0006] However, according to the discovery of the present inventors, some scenarios of wireless communication applications (e.g., energy saving mode) may have adverse effects. For example, when a network device dynamically adjusts the number of antennas or transmission power, the corresponding channel changes, so that the measurement of Channel State Information (CSI) or Channel Quality Indicator (CQI) from the terminal device may become inaccurate or in time, which may ultimately affect transmission performance. How to timely calculate CQI for the terminal device to accurately reflect the data transmission channel quality is currently one of the important problems to be solved.

[0007] In view of at least one of the above problems, embodiments of the present invention provide a method and apparatus for calculating and indicating a channel quality indication (CQI). [Means for solving the problem]

[0008] One aspect of an embodiment of the present invention provides a method for calculating a channel quality indication (CQI), the method including: a step in which a terminal device calculates a first channel quality indication (CQI) based on a first parameter; and a step in which the terminal device calculates a second channel quality indication (CQI) based on a second parameter.

[0009] Another aspect of an embodiment of the present invention provides a channel quality indication (CQI) calculation device, the device including: a first calculation unit that calculates a first channel quality indication (CQI) based on a first parameter; and a second calculation unit that calculates a second channel quality indication (CQI) based on a second parameter.

[0010] Another aspect of an embodiment of the present invention provides a method for indicating a channel quality indication (CQI), the method comprising: a step in which a network device transmits first indication information and / or second indication information to a terminal device, the first indication information and / or the second indication information being used to determine or indicate at least a second parameter, and the terminal device calculating a first channel quality indication (CQI) based on the first parameter and calculating a second channel quality indication (CQI) based on the second parameter.

[0011] Another aspect of an embodiment of the present invention provides a channel quality indication (CQI) indication device, the device including: a transmitter that transmits first indication information and / or second indication information to a terminal device, the first indication information and / or the second indication information being used to determine or indicate at least a second parameter, and the terminal device calculating a first channel quality indication (CQI) based on the first parameter and calculating a second channel quality indication (CQI) based on the second parameter.

[0012] Another aspect of an embodiment of the present invention provides a communication system including a network device and a terminal device, wherein the network device transmits first indication information and / or second indication information, the first indication information and / or the second indication information are used to determine or indicate at least a second parameter, and the terminal device calculates a first channel quality indication (CQI) based on the first parameter and calculates a second channel quality indication (CQI) based on the second parameter.

[0013] One of the advantageous effects of the embodiment of the present invention is as follows: the terminal device calculates a first channel quality indication (CQI) based on a first parameter and calculates a second channel quality indication (CQI) based on a second parameter, so that the terminal device can timely calculate the CQI and accurately and timely reflect the data transmission channel transmission quality, thereby providing accurate channel information for scheduling of the network device.

[0014] As shown in the following description and drawings, specific embodiments of the present invention are disclosed in detail to illustrate ways in which the principles of the present invention can be employed. However, the scope of the present invention is not limited to these embodiments. The present invention encompasses all modifications, alterations, and equivalents within the spirit and scope of the appended claims.

[0015] Features described and / or shown in one embodiment may be used in the same or similar manner in one or more other embodiments, may be combined with features in other embodiments, or may be substituted for features in other embodiments.

[0016] It should be noted that in this text, the term "comprise / have" means the presence of a feature, element, step or component, and does not exclude the presence or addition of one or more other features, elements, steps or components. [Brief explanation of the drawings]

[0017] Elements and features depicted in one drawing and one embodiment of an embodiment of the invention may be combined with elements and features shown in one or more drawings or embodiments, and in the drawings, like reference numerals may designate corresponding elements in multiple drawings and may designate corresponding elements used in more than one embodiment. [Figure 1] 1 is a schematic diagram of a communication system according to an embodiment of the present invention; [Figure 2] 2 is a schematic diagram of an example of a method for calculating a channel quality indication according to an embodiment of the present invention; [Figure 3] FIG. 10 is a schematic diagram of another example of a method for calculating a channel quality indication according to an embodiment of the present invention; [Figure 4] 4 is a schematic diagram of an example of a method for indicating a channel quality indication according to an embodiment of the present invention; [Figure 5] 2 is a schematic diagram of an example of a channel quality indication calculation device according to an embodiment of the present invention; [Figure 6] 1 is a schematic diagram of an example of an indication device for a channel quality indication according to an embodiment of the present invention; [Figure 7] FIG. 2 is a schematic diagram of an example of a network device according to an embodiment of the present invention. [Figure 8] FIG. 2 is a schematic diagram of an example of a terminal device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0018] The above and other features of the present invention will become apparent from the following description. In the specification and drawings, specific embodiments of the present invention are disclosed in detail, and some of the embodiments in which the principles of the present invention can be adopted are shown. However, the present invention is not limited to the described embodiments. The present invention includes all modifications, variations, and equivalents within the scope of the appended claims. Below, various embodiments of the present invention will be described with reference to the drawings. These embodiments are merely illustrative and do not limit the present invention.

[0019] In embodiments of the present invention, the terms "first," "second," etc. are used in titles to distinguish between different elements, but do not represent the spatial arrangement or temporal order of these elements, and these elements are not limited to these terms. The term "and / or" includes any and all combinations of one or more of the terms listed in the associated list. The terms "comprise," "include," "have," etc. refer to the presence of listed features, elements, elements, or components, but do not exclude the presence or addition of one or more other features, elements, elements, or components.

[0020] In the embodiments of the present invention, the singular forms "one," "the," etc., include the plural and should be understood broadly as "one kind" or "one class," and are not limited to "one." Furthermore, the term "said" should be understood to include both the singular and the plural, unless the context clearly indicates otherwise. Furthermore, the term "described in" should be understood to mean "described at least in part," and the term "based on" should be understood to mean "based at least in part," unless the context clearly indicates otherwise.

[0021] In embodiments of the present invention, the terms "communication network" or "wireless communication network" may refer to a network conforming to any communication standard, such as, for example, Long Term Evolution (LTE), Long Term Evolution Advanced (LTE-A, LTE-Advanced), Wideband Code Division Multiple Access (WCDMA), High-Speed ​​Packet Access (HSPA), etc.

[0022] Additionally, communications between devices in a communications system may occur according to any stage of communications protocol, including, but not limited to, 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, and 5G, New Radio (NR), and / or other currently known or future developed communications protocols.

[0023] In an embodiment of the present invention, the term "network device" refers to a device in a communication system that allows a terminal device to access the communication system and provides a service to the terminal device, and may include, but is not limited to, a base station (BS), an access point (AP), a transmission reception point (TRP), a broadcast transmitter, a mobility management entity (MME), a gateway, a server, a radio network controller (RNC), a base station controller (BSC), etc.

[0024] Here, the base station may include, but is not limited to, a Node B (NodeB or NB), an evolved Node B (eNodeB or eNB), a 5G base station (gNB), an IAB donor, etc., as well as a remote radio head (RRH), a remote radio unit (RRU), a relay, or a low-power node (e.g., femto, pico, etc.). Also, the term "base station" may include some or all of these functions, and each base station may provide communication coverage for a particular geographic area. The term "cell" may refer to a base station and / or its coverage area, depending on the context in which the term is used.

[0025] In the embodiments of the present invention, the term "User Equipment" (UE) or "Terminal Equipment" (TE) refers to a device that accesses a communication network and receives network services via, for example, a network device. The terminal device may be fixed or mobile, and may also be referred to as a mobile station (MS), a terminal, a subscriber station (SS), an access terminal (AT), a station, etc.

[0026] Here, the terminal device may include, but is not limited to, a cellular phone, a personal digital assistant (PDA), a wireless modulation / demodulation device, a wireless communication device, a handheld device, a machine-type communication device, a laptop computer, a cordless phone, a smartphone, a smart watch, a digital camera, etc.

[0027] Furthermore, for example, in a scenario such as the Internet of Things (IoT), the user device may be a monitoring or measurement device or apparatus, including, but not limited to, a Machine Type Communication (MTC) terminal, an in-vehicle communication terminal, an industrial wireless device, a surveillance camera, a Device to Device (D2D) terminal, a Machine to Machine (M2M) terminal, etc.

[0028] Furthermore, the term "network side" or "network device side" refers to the side of a network, which may be a base station or may include one or more of the network devices described above. The term "user side" or "terminal side" or "terminal device side" refers to the side of a user or terminal, which may be a UE or may include one or more of the terminal devices described above. In this specification, unless otherwise specified, "device" may refer to either a network device or a terminal device.

[0029] The following describes an example scenario of the present invention with reference to an example, but the present invention is not limited thereto.

[0030] 1 is a schematic diagram of a communication system according to an embodiment of the present invention, and schematically illustrates examples of terminal devices and network devices. As shown in FIG. 1, a communication system 100 may include a network device 101 and terminal devices 102 and 103. For convenience of explanation, FIG. 1 illustrates an example in which two terminal devices and one network device are included, but the embodiment of the present invention is not limited thereto.

[0031] In an embodiment of the present invention, existing services or future services may be performed between the network device 101 and the terminal devices 102, 103. For example, these services may include, but are not limited to, enhanced Mobile Broadband (eMBB), massive Machine Type Communication (mMTC), and Ultra-Reliable and Low-Latency Communication (URLLC) and related communications for reduced-capability terminal devices.

[0032] 1 shows that both of the two terminal devices 102 and 103 are located within the coverage area of ​​the network device 101, but the present invention is not limited to this. Neither of the two terminal devices 102 and 103 may be located within the coverage area of ​​the network device 101, or one terminal device 102 may be located within the coverage area of ​​the network device 101 and the other terminal device 103 may be located outside the coverage area of ​​the network device 101.

[0033] In an embodiment of the present invention, the higher layer signaling may be, for example, Radio Resource Control (RRC) signaling, for example, referred to as an RRC message, including, for example, MIB, system information, and dedicated RRC messages, or referred to as an RRC information element (RRC IE). The higher layer signaling may also be, for example, Medium Access Control (MAC) signaling, or referred to as a MAC control element (MAC CE). Note that the present invention is not limited thereto.

[0034] In a mobile communication system, CQI is used to reflect downlink channel quality and is one of the bases for downlink scheduling by a network device. For example, the CQI is calculated after a terminal device measures a channel state information reference signal (CSI-RS), and the terminal device reports the CQI to a network device, which selects an appropriate modulation order, bit rate, downlink data block size, etc. based on the CQI. This ensures that the terminal device obtains optimal downlink performance in different radio environments.

[0035] The specific content of the CQI calculation may include, for example, the following steps: The terminal device measures the CSI-RS and obtains a subcarrier-level CSI-RS signal-to-interference-and-noise ratio (SINR); The terminal device estimates a subcarrier-level PDSCH SINR value from the subcarrier-level CSI-RS SINR based on the ratio between the energy per resource element (EPRE) of the physical downlink shared channel (PDSCH) and the CSI-RS EPRE; The terminal device converts the subcarrier-level PDSCH SINR to a PRB group-level PDSCH efficiency SINR using physical layer mapping (e.g., an EESM algorithm); The terminal device obtains a CQI result based on a mapping table from the PDSCH efficiency SINR to CQI.

[0036] The above is merely an outline of the CQI calculation, and several parameters are used in the CQI calculation, such as the ratio of PDSCH EPRE to CSI-RS EPRE, the number of physical resource block (PRB) groups, the number of CSI-RS ports, etc. These parameters are configured by the network device and may affect the CQI calculation result. Table 1 exemplarily shows some parameters involved in the CQI calculation.

[0037] [Table 1] As shown in Table 1, the ratio of PDSCH EPRE to CSI-RS EPRE may be determined by the higher layer parameter powerControlOffset, and the number of CSI-RS ports (P∈[1,2,4,8,12,16,24,32] is the number of CSI-RS ports) may be determined by the higher layer parameter nrofPorts.

[0038] Currently, the parameters involved in CQI calculation are semi-statically configured by Radio Resource Control (RRC) signaling and typically do not change over time. If these parameters need to be changed, they can be adjusted by RRC reconfiguration.

[0039] However, in some scenarios of wireless communication applications (e.g., energy saving mode), these parameters may be changed because the transmit power, the number of antennas, etc. may be adjusted. Taking network energy saving as an example, a network device may dynamically adjust the PDSCH transmit power and the number of CSI-RS ports. This dynamic adjustment may be at the slot level (for a subcarrier spacing of 15 kHz, one slot is 1 ms) or the symbol level (for a subcarrier spacing of 15 kHz, one symbol is approximately 71.4 us).

[0040] Therefore, according to the existing CQI calculation and reporting scheme, when the PDSCH transmit power and the number of CSI-RS ports are dynamically adjusted, the network device instructs the adjusted parameters to the terminal device through the existing RRC reconfiguration, with a delay of at least 10 ms, and the terminal device cannot timely and accurately calculate the CQI and cannot timely report the CQI result to the network device, which does not meet the dynamic requirements of the network. In other words, the CQI result calculated according to the existing scheme is inaccurate, and the existing CQI calculation cannot accurately and timely reflect the data transmission channel transmission quality, so it cannot provide accurate channel information for scheduling of the network device.

[0041] In the embodiments of the present invention, CQI calculation will be described as an example. Because a CQI indication, a CQI calculation, and a CQI report may be part of a CSI measurement, the terms "CQI indication," "CSI indication," "CSI configuration," etc. may be interchangeable, the terms "CQI calculation," "CSI calculation," "CSI measurement," "CSI generation," "CSI," etc. may be interchangeable, and the terms "CQI report," "CSI report," "CSI feedback," etc. may be interchangeable, as long as there is no confusion. The present invention is not limited thereto. Furthermore, energy saving will be described as an example, but is not limited thereto, and may be applied to any scenario related to CQI calculation or CSI measurement.

[0042] In the embodiments of the present invention, the number of CSI-RS ports will be described as an example. The terms "number of CSI-RS ports," "number of reference signal ports," "CSI-RS port configuration," "CSI-RS port index," "time-frequency resource corresponding to a CSI-RS port," "CSI-RS resource configuration," etc. may be interchangeable, and the present invention is not limited thereto.

[0043] Example 1 An embodiment of the present invention provides a method for calculating a channel quality indication. Figure 2 is a schematic diagram of an example of a method for calculating a channel quality indication according to an embodiment of the present invention. As shown in Figure 2, the method includes the following steps:

[0044] Step 201: The terminal device calculates a first channel quality indication (CQI) based on a first parameter.

[0045] Step 202: The terminal device calculates a second channel quality indication (CQI) based on a second parameter.

[0046] It should be noted that the above-mentioned FIG. 2 merely illustrates an example of the present invention, and the present invention is not limited thereto. For example, the execution order of various steps may be appropriately adjusted, some other steps may be added, or some steps may be removed. Those skilled in the art can make appropriate modifications based on the above content, and are not limited to the description of the above-mentioned FIG. 2.

[0047] In an embodiment of the present invention, the first CQI and the second CQI may be understood as two different CQIs, two different values ​​of the same CQI, or two different states of the same CQI, and the present invention is not limited thereto. For example, the first CQI is a CQI value calculated before channel adjustment (e.g., a channel change due to energy saving), and the second CQI is a CQI value calculated after channel adjustment.

[0048] In an embodiment of the present invention, the terminal device calculates a first channel quality indicator (CQI) based on a first parameter and calculates a second channel quality indicator (CQI) based on a second parameter, thereby allowing the terminal device to timely calculate the CQI and accurately and timely reflect the data transmission channel transmission quality, thereby providing accurate channel information for scheduling of the network device.

[0049] In some embodiments, the first parameter is of the same type as the second parameter. For example, the first parameter and the second parameter are respectively a pre-dynamically updated parameter and a dynamically updated parameter of a certain type of parameter. The first parameter and the second parameter may be understood as two different values ​​of the type of parameter.

[0050] In some embodiments, the first parameter is first reference signal port information for calculating a first channel quality indication, and the second parameter is second reference signal port information for calculating a second channel quality indication.

[0051] For example, the terminal device may calculate a first CQI and a second CQI, indicating that different CQI calculations correspond to different port numbers. The different ports correspond to different spatial domain element muting modes or different spatial domain element configurations, and accordingly, the different CQI calculations correspond to different spatial domain element muting modes or different spatial domain element configurations. This allows the terminal device to perform multiple measurements on different resources corresponding to different port configurations of the same CSI-RS resource.

[0052] For example, the first reference signal port information and / or the second reference signal port information may include at least one of a number of ports of a channel state information reference signal (CSI-RS), an offset of the number of ports of a channel state information reference signal (CSI-RS), a port index of a channel state information reference signal (CSI-RS), and a time domain resource, a frequency domain resource, and / or a spatial domain resource corresponding to a port of a channel state information reference signal (CSI-RS). Hereinafter, for convenience of description, the number of CSI-RS ports / offset, etc. will be abbreviated as the number of CSI-RS ports.

[0053] In some embodiments, the first parameter is first downlink transmit power information for calculating a first channel quality indication, and the second parameter is second downlink transmit power information for calculating a second channel quality indication.

[0054] For example, the terminal device may calculate a first CQI and a second CQI, indicating that different CQI calculations correspond to different downlink transmit power information. Different downlink transmit powers correspond to different energy region element modes / configurations, and accordingly, different CQI calculations correspond to different energy region element modes / configurations. This allows the terminal device to perform multiple measurements for different transmit power configurations of the same CSI-RS resource.

[0055] For example, the first downlink transmission power information and / or the second downlink transmission power information may include at least one of a ratio of an energy per resource element (EPRE) of a physical downlink shared channel (PDSCH) to an energy per resource element (EPRE) of a channel state information reference signal (CSI-RS) or an offset of the ratio of the physical downlink shared channel (PDSCH) to the EPRE of a channel state information reference signal (CSI-RS). Hereinafter, for convenience of description, the ratio / offset of the PDSCH EPRE to the CSI-RS EPRE is abbreviated as PDSCH EPRE.

[0056] The above has been a brief description of the first parameter and the second parameter, and the following will describe how to obtain these parameters. In the embodiments of the present invention, the above content and related art may be referred to for how the CQI is specifically calculated, and the description thereof will be omitted here.

[0057] 3 is a schematic diagram of another example of a method for calculating a channel quality indication according to an embodiment of the present invention. As shown in FIG. 3, the method includes the following steps:

[0058] Step 301: The terminal device receives first and / or second indication information sent by the network device, which is used to determine or indicate at least a second parameter.

[0059] Step 302: The terminal device calculates a first channel quality indication (CQI) based on the first parameter.

[0060] Step 303: The terminal device calculates a second channel quality indication (CQI) based on the second parameter.

[0061] It should be noted that the above-mentioned FIG. 3 merely illustrates an example of the present invention, and the present invention is not limited thereto. For example, the execution order of various steps may be appropriately adjusted, some other steps may be added, or some steps may be removed. Those skilled in the art can make appropriate modifications based on the above content, and are not limited to the description of the above-mentioned FIG. 3.

[0062] In some embodiments, the first indication information is used to indicate downlink transmission power in the first mode and / or the second mode, or to indicate the number of ports of the reference signal in the first mode and / or the second mode. For example, the first mode is at least one of an energy saving mode, a power saving mode, a dormant mode, a non-normal mode, an inactive mode, a mode after the network device adjusts the number of ports of the PDSCH EPRE / CSI-RS, or a first configuration mode of the number of ports of the PDSCH EPRE / CSI-RS. The second mode is at least one of a non-energy saving mode, a non-power saving mode, a non-dormant mode, a normal mode, an active mode, a mode before the network device adjusts the number of ports of the PDSCH EPRE / CSI-RS, or a second configuration mode of the number of ports of the PDSCH EPRE / CSI-RS. The embodiments of the present invention are not limited to the above.

[0063] For example, the first instruction information may indicate the downlink transmission power in the second mode and the downlink transmission power in the first mode, and the terminal device may calculate a first CQI based on at least the downlink transmission power in the second mode and calculate a second CQI based on at least the downlink transmission power in the first mode.

[0064] Furthermore, for example, the first instruction information may indicate the number of reference signal ports in the second mode and the number of reference signal ports in the first mode, and the terminal device may calculate a first CQI based on at least the number of reference signal ports in the second mode and / or calculate a second CQI based on at least the number of reference signal ports in the first mode.

[0065] In some embodiments, the second indication information is used to indicate at least one of a network state, a CSI-RS resource configuration update / adjustment / switching, a CSI-RS port adjustment, a CSI-RS port activation / deactivation indication, a CSI-RS port enablement indication, a CSI measurement adjustment, a CSI reporting configuration adjustment, a CQI calculation by the terminal device, a CQI calculation by the terminal device using parameters in the first mode, or a CQI calculation by the terminal device using parameters in the second mode.

[0066] For example, the network state may indicate at least one of a first mode, a second mode, a switch from the first mode to the second mode, a switch from the second mode to the first mode, an adjustment of a time domain element, an adjustment of a spatial domain element, or an adjustment of an energy domain element. The spatial domain element may indicate at least one of an antenna port, a logical port, a reference signal port, an antenna coefficient, an antenna element, and an antenna unit, and the energy domain element may indicate at least one of an energy per resource element of a physical downlink shared channel (PDSCH) or an energy per resource element of a channel state information reference signal. The embodiments of the present invention are not limited to the above.

[0067] For example, the first indication information may indicate the downlink transmission power in the second mode and the downlink transmission power in the first mode. The terminal device calculates a first CQI from the downlink transmission power in the second mode and calculates a second CQI from the downlink transmission power in the first mode. The network device may also transmit second indication information indicating that "the network state is in the second mode." When receiving the second indication information, the terminal device calculates the first CQI based on at least the downlink transmission power in the second mode. And / or the network device may transmit second indication information indicating that "the network state is in the first mode." When receiving the second indication information, the terminal device may calculate the second CQI based on at least the downlink transmission power in the first mode, or may calculate the first CQI based on the downlink transmission power in the second mode and calculate the second CQI based on the downlink transmission power in the first mode.

[0068] Furthermore, for example, the first instruction information may indicate the number of reference signal ports in the second mode and the number of reference signal ports in the first mode. The terminal device may calculate a first CQI based on the number of reference signal ports in the second mode, and may also calculate a second CQI based on the number of reference signal ports in the first mode. The network device may also transmit second instruction information indicating that "the network state is the second mode." When receiving the second instruction information, the terminal device may calculate the first CQI from at least the number of reference signal ports in the second mode. And / or the network device may transmit second instruction information indicating that "the network state is the first mode." When receiving the second instruction information, the terminal device may calculate the second CQI from at least the number of reference signal ports in the first mode, or may calculate the first CQI from the number of reference signal ports in the second mode and calculate the second CQI from the number of reference signal ports in the first mode.

[0069] In some embodiments, the first indication information is carried by Radio Resource Control (RRC) signaling and / or a Medium Access Control (MAC) control element (CE), and the second indication information is carried by Downlink Control Information (DCI).

[0070] In some embodiments, the first indication information and / or the second indication information may be a group common signal for simultaneously transmitting information to multiple terminal devices. For example, the first indication information and / or the second indication information may be carried by cell-specific or group-specific signaling. Cell-specific or group-specific signaling allows a network device to configure multiple terminal devices collectively, thereby saving signaling overhead.

[0071] In one embodiment, when the terminal device receives the first indication information and the second indication information, it calculates a second channel quality indication using the second parameter indicated by the first indication information and / or the second indication information and / or the acquired third parameter.

[0072] For example, the first indication information may be carried by RRC to configure parameters, and the second indication information may be used to trigger CQI calculation, i.e., the manner of RRC+DCI may be used. Also, for example, the first indication information may be carried by MAC CE to activate parameters, and the second indication information may be used to trigger CQI calculation, i.e., the manner of MAC CE+DCI may be used. Also, for example, the first indication information may be carried by RRC to configure parameters, and the MAC CE to activate parameters, and the second indication information may be used to trigger CQI calculation, i.e., the manner of RRC+MAC CE+DCI may be used.

[0073] In another embodiment, when the terminal device receives the first indication information, it calculates a second channel quality indication using the second parameter indicated by the first indication information and / or the acquired third parameter.

[0074] For example, the first indication information may be carried by the RRC to configure parameters, which may then trigger CQI calculation using a predefined rule (e.g., a timer) or by the terminal itself. Also, for example, the first indication information may be carried by the MAC CE to activate parameters, which may then trigger CQI calculation using a predefined rule (e.g., a timer) or by the terminal itself.

[0075] In some embodiments, the obtained third parameter is at least one of a parameter configured for the terminal device by the network device, a parameter calculated by the terminal device according to a predetermined rule, a parameter pre-stored by the terminal device, or a default parameter of the terminal device, although the present invention is not limited thereto.

[0076] Taking RRC signaling and / or a MAC CE semi-statically configuring the PDSCH EPRE as an example, the first indication information is used to indicate the PDSCH EPRE of a first mode or a possible adjustment value of the PDSCH EPRE, where the first mode may be an energy saving / non-normal mode, a mode after the network device adjusts the PDSCH EPRE, etc.

[0077] An example of an RRC signaling configuration is shown in Table 2. As shown in Table 2, the RRC signaling configures the PDSCH EPRE or a possible adjustment value of the PDSCH EPRE, such as powerControlOffset_ES, in the first mode.

[0078] [Table 2] The number of possible adjustment values ​​of the PDSCH EPRE or the PDSCH EPRE in the first mode may be 1 or may be 2 or more. The above-mentioned PDSCH EPRE or the possible adjustment values ​​of the PDSCH EPRE in the first mode may be replaced with a PDSCH EPRE offset in the first mode or an offset of the possible adjustment values ​​of the PDSCH EPRE.

[0079] Also, an existing IE (e.g., powerControlOffset) may be reused, or a new IE (e.g., powerControlOffset_ES) may be defined. When the PDSCH EPRE or a possible adjustment value of the PDSCH EPRE for the first mode is configured using RRC signaling, the terminal device may use these two values ​​to calculate / report two CQIs simultaneously, or may use the second indication information to trigger the terminal device to use these values ​​to calculate / report a CQI.

[0080] Although the above description exemplarily illustrates obtaining one PDSCH EPRE value, in some embodiments, at least two PDSCH EPRE values ​​may be obtained. For example, RRC signaling configures two values, namely, powerControlOffset_ES1 and powerControlOffset_ES2, corresponding to deep sleep energy saving and light sleep energy saving, etc. Also, for example, DCI indicates at least two PDSCH EPRE values.

[0081] Taking RRC signaling and / or a MAC CE semi-statically configuring the number of CSI-RS ports as an example, the first indication information is used to indicate the number of CSI-RS ports in a first mode or a possible adjustment value of the number of CSI-RS ports, where the first mode may be an energy saving / non-normal mode, a model after the network device adjusts the configuration of the number of CSI-RS ports, etc.

[0082] An example of the RRC signaling configuration is shown in Table 3. As shown in Table 3, the RRC signaling configures the number of CSI-RS ports in the first mode, for example, nrofPorts indicates the CSI-RS port configuration in energy saving / first mode, and information on the number of CSI-RS ports can be obtained from nrofPorts_ES.

[0083] [Table 3] The number of CSI-RS ports or the possible adjustment value of the number of CSI-RS ports for the first mode may be one or more. The number of CSI-RS ports or the possible adjustment value of the number of CSI-RS ports for the first mode described above may be replaced with an offset of the number of CSI-RS ports for the first mode or an offset of the possible adjustment value of the number of CSI-RS ports.

[0084] Also, an existing IE (nrofPorts) may be reused or a new IE may be defined. Also, when the number of CSI-RS ports or a possible adjustment value of the number of CSI-RS ports for the first mode is configured using RRC signaling, the terminal device may simultaneously calculate / report two CQIs based on the two port numbers, or may use second indication information to trigger the terminal device to calculate / report a CQI using this value.

[0085] The above describes the acquisition of one CSI-RS port number by way of example, and in some embodiments, at least two CSI-RS port numbers may be acquired. For example, RRC signaling configures two values, nrofPorts1 and nrofPorts2, corresponding to deep sleep energy saving, light sleep energy saving, etc. Also, for example, at least two CSI-RS port numbers may be indicated in DCI.

[0086] In some embodiments, the first indication is carried by a Downlink Control Information (DCI) and / or a Medium Access Control (MAC) Control Element (CE). Upon receiving the first indication, the terminal device calculates a second channel quality indication using the second parameter indicated by the first indication and / or the obtained third parameter.

[0087] Taking the physical layer signaling and / or MAC CE dynamically indicating the PDSCH EPRE as an example, for example, when the network device adjusts the PDSCH EPRE, the PDSCH EPRE value is indicated to the terminal device by the physical layer signaling.

[0088] For example, the network device may indicate a specific PDSCH EPRE value in the MAC CE.

[0089] Also, for example, the network device indicates a specific PDSCH EPRE value through DCI, for example, DCI has two fields, one field indicates a CSI-RS resource configuration index and the other field indicates a PDSCH EPRE value.

[0090] As another example, the network device and the terminal device predefine a list of possible values ​​of PDSCH EPRE, and the network device indicates the index of the list to the terminal device by DCI signaling. The PDSCH EPRE list may be specified by MAC CE or configured by RRC signaling.

[0091] Any of the above PDSCH EPRE may be replaced with a PDSCH EPRE offset, for example, an offset for the PDSCH EPRE in the second mode, for example, an offset for powerControlOffset. Also, if the PDSCH EPRE value is indicated by physical layer signaling, the signaling may simultaneously trigger the terminal device to use this value to calculate / report CQI.

[0092] As an example of physical layer signaling and / or MAC CE dynamically indicating the number of CSI-RS ports, for example, when a network device adjusts the number of CSI-RS ports, the CSI-RS port value is indicated to a terminal device by physical layer signaling.

[0093] For example, the network device may indicate a specific number of CSI-RS ports in the MAC CE.

[0094] Also, for example, the network device may indicate a specific number of CSI-RS ports or port configuration in the DCI, for example, the DCI may have two fields, one field indicating a CSI-RS resource configuration index and the other field indicating the number of CSI-RS ports or port configuration.

[0095] Also, for example, the network device and the terminal device pre-define a list of possible values ​​of the number of CSI-RS ports. The network device indicates an index of the list to the terminal device by DCI signaling. The list of the number of CSI-RS ports may be specified by MAC CE or configured by RRC signaling.

[0096] Any of the above CSI-RS port numbers may be replaced with an offset to the CSI-RS port number, for example, an offset to the CSI-RS port number in the second mode, for example, an offset to nrofPorts. Also, if the CSI-RS port number is indicated by physical layer signaling, the signaling may simultaneously trigger the terminal device to use this value to calculate / report CQI.

[0097] In some embodiments, the second indication information is carried by a downlink control information (DCI) and / or a medium access control (MAC) control element (CE). When the terminal device receives the second indication information, the terminal device calculates the channel quality indication using the second parameter determined based on the second indication information and / or the obtained third parameter.

[0098] For example, the terminal device may predefine the number of PDSCH EPREs and / or CSI-RS ports in the first mode, and when the second indication information is received, the terminal device calculates the second CQI using the predefined parameters, and can still use the parameters configured by the RRC for calculating the first CQI.

[0099] The number of PDSCH EPREs and / or CSI-RS ports in the above-mentioned predefined first mode may be a value other than zero or may be a zero value. A zero value indicates that a CSI-RS signal is not transmitted / received. For example, when the terminal device receives the second indication information, the terminal device knows that the network device does not transmit a CSI-RS signal and may perform a skip process or a muting process. The terminal device does not need to receive a CSI-RS signal and does not perform any CQI calculation.

[0100] In some embodiments, the terminal device determines the second parameter based on the first parameter and / or predefined rules and / or preconfigured parameters, and the terminal device calculates the second channel quality indication using the second parameter and / or the obtained third parameter.

[0101] For example, the terminal device may predefine the number of PDSCH EPREs and / or CSI-RS ports in the first mode, and when a predetermined condition (e.g., a timer timeout) is triggered, the terminal device calculates the second CQI using the predefined parameters. Alternatively, the terminal device may decide to calculate the second CQI using the predefined parameters. For the calculation of the first CQI, parameters configured by RRC may be used.

[0102] The number of PDSCH EPREs and / or CSI-RS ports in the above-mentioned predefined first mode may be a non-zero value or a zero value. A zero value indicates that a CSI-RS signal is not transmitted / received. For example, when a predetermined condition (e.g., a timer timeout) is triggered, the terminal device knows that the network device does not transmit a CSI-RS signal and may perform a skip process or a muting process, in which the terminal device does not receive a CSI-RS signal and does not perform any CQI calculation.

[0103] The second instruction information will be further explained below.

[0104] In some embodiments, for example, if the second indication information indicates the first mode, the terminal device uses the powerControlOffset_ES configured by the RRC, and if not, uses the normal powerControlOffset. Also, for example, if the second indication information indicates that CQI calculation is to be performed, the terminal device uses the powerControlOffset_ES configured by the RRC, and if not, uses the normal powerControlOffset.

[0105] In some embodiments, for example, if the second indication indicates that the PDSCH EPRE cannot be obtained by the conventional higher layer parameter powerControlOffset, the powerControlOffset_ES configured by the RRC is used, and otherwise, the normal powerControlOffset is used.Also, for example, if the second indication indicates that the number of ports for the CSI-RS cannot be obtained by the conventional higher layer parameter nrofPorts, the portConfig_ES configured by the RRC is used, and otherwise, the normal nrofPorts is used.

[0106] The following further describes network conditions.

[0107] In some embodiments, for example, the first mode may be replaced by network energy saving / power saving / dormant / non-normal service / inactive mode / state; the network normal mode may be replaced by network normal / normal / active mode / state; the adjustment of time domain elements may be replaced by time domain reference signal / data transmission adjustment / adaptation / change; the adjustment of spatial domain elements may be replaced by antenna / antenna port / TxRU / antenna panel / antenna factor adjustment / adaptation / change; the adjustment of energy domain elements may be replaced by PDSCH ERPE to CSI-RS EPRE ratio / offset adjustment or PDSCH transmit power adjustment.

[0108] The above is a brief description of CQI calculation, and the following is a brief description of CQI reporting.

[0109] In some embodiments, the terminal device calculates a second channel quality indication and feeds back the first channel quality indication and / or the second channel quality indication to the network device, where the first channel quality indication and / or the second channel quality indication are reported aperiodically, periodically, or semi-continuously.

[0110] For example, whenever the network device dynamically adjusts the number of ports of the PDSCH EPRE and / or CSI-RS, the terminal device can timely obtain the number of ports of the PDSCH EPRE and / or CSI-RS through the above-mentioned method (e.g., RRC+DCI or DCI) and perform CQI calculation / reporting dynamically and timely. This can provide accurate channel information for scheduling of the network device. For example, the terminal device can calculate only one CQI value at a time.

[0111] In some embodiments, the terminal device calculates at least two second channel quality indications and feeds back the first channel quality indication and / or the at least two second channel quality indications to the network device, where the first channel quality indication and / or the at least two second channel quality indications are reported aperiodically, periodically, or semi-continuously.

[0112] For example, in a network energy saving scenario, the terminal device may obtain all dynamically adjusted candidate values ​​for the number of PDSCH EPRE and / or CSI-RS ports in advance, and may calculate and report multiple CQI results at once based on these values, where one CQI result corresponds to one PDSCH EPRE and / or CSI-RS port number. After receiving the multiple CQI results, the network device may select, for scheduling purposes, a CQI result that matches the current actual PDSCH EPRE and / or CSI-RS port number from the multiple CQI results based on the mapping relationship between the preconfigured CQI and the number of PDSCH EPRE and / or CSI-RS ports.

[0113] For example, the terminal device may periodically obtain the number of PDSCH EPRE and / or CSI-RS ports through the above-mentioned method (e.g., RRC), perform CQI calculation using all possible candidate values ​​of the number of PDSCH EPRE and / or CSI-RS ports, and obtain and report multiple CQI values ​​to the network device, thereby still providing accurate channel information for scheduling by the network device.

[0114] The following describes the CQI calculation based on the dynamically adjusted PDSCH EPRE with reference to an example.

[0115] In some embodiments, the network device configures by RRC signaling at least one PDSCH EPRE associated with the first mode of the network or a possible adjustment value or candidate adjustment value for the PDSCH EPRE, for example powerControlOffset_ES in Table 4 below.

[0116] [Table 4] The terminal device calculates two CQIs corresponding to powerControlOffset and powerControlOffset_ES, respectively, according to the RRC signaling configuration.

[0117] Table 4 shows an example of RRC signaling for one powerControlOffset_ES configuration, but the present invention is not limited thereto. For example, the RRC signaling may configure multiple values, such as powerControlOffset_ES1 and powerControlOffset_ES2. The terminal device may calculate three CQIs corresponding to powerControlOffset, powerControlOffset_ES1, and powerControlOffset_ES2, respectively.

[0118] In some embodiments, the network device configures by RRC signaling at least one PDSCH EPRE or a possible or candidate adjustment value for the PDSCH EPRE, for example powerControlOffset_ES in Table 2, associated with the first mode of the network.

[0119] For example, in the second mode, the terminal device determines the PDSCH EPRE for CQI calculation according to the powerControlOffset configured by RRC signaling. At a certain time t1, the network device sends DCI signaling indicating second indication information to the terminal device, for example, instructing the network to switch from the second mode to the first mode. At this time, the terminal device determines the PDSCH EPRE for CQI calculation according to the powerControlOffset_ES configured by RRC signaling. Table 5 shows the powerControlOffset_ES.

[0120] [Table 5] At a certain time t2, the network device sends DCI signaling indicating second instruction information to the terminal device, for example, instructing the network to switch from the first mode to the second mode, and the terminal device determines the PDSCH EPRE via the powerControlOffset configured by the RRC signaling for CQI calculation.

[0121] In some embodiments, the PDSCH EPRE is indicated via a DCI.

[0122] For example, in the second mode, the terminal device determines the PDSCH EPRE for CQI calculation via the powerControlOffset configured by RRC signaling. Table 6 shows the powerControlOffset.

[0123] [Table 6] When the PDSCH EPRE is dynamically adjusted (for example, due to network energy saving), the network device directly indicates the PDSCH EPRE value via DCI, and the terminal device uses the latest indicated PDSCH EPRE for CQI calculation.

[0124] The DCI indication information may include two fields, where the first field indicates a CSI-RS resource configuration number and the second field indicates a PDSCH EPRE value. If the DCI indication indicates at least two values, the terminal device performs at least two CQI calculations, and each CQI result corresponds to one PDSCH EPRE information.

[0125] In some embodiments, the PDSCH EPRE list may be configured via the RRC / MAC CE and the DCI may be used to indicate the list index.

[0126] For example, in the second mode, the terminal device determines the PDSCH EPRE for CQI calculation via the powerControlOffset configured by RRC signaling. The network device configures a list of possible values ​​of the PDSCH EPRE via RRC signaling or indicates the list of possible values ​​of the PDSCH EPRE via MAC CE signaling. The network device also indicates the list index via DCI signaling, and the terminal device obtains the PDSCH EPRE for CQI calculation.

[0127] If the DCI indicates at least two values, the terminal device performs at least two CQI calculations. If the DCI signaling indicates a special value, a special list index, or an invalid value, or a list index corresponding to the powerControlOffset configured by RRC signaling, the network switches from the first mode to the second mode.

[0128] In some embodiments, the DCI may indicate a network state or a switch between different CSI-RS configurations and determine the PDSCH EPRE according to predefined rules.

[0129] For example, in the second mode, the terminal device determines the PDSCH EPRE for CQI calculation according to the powerControlOffset configured by RRC signaling. At a certain time t1, the network device sends DCI signaling indicating second indication information to the terminal device, for example, indicating that the network switches from the second mode to the first mode.

[0130] The terminal device obtains a value of PDSCH EPRE for CQI calculation according to a predefined rule. The value of PDSCH EPRE determined according to the predefined rule may be one or at least two. If there are at least two, the terminal device calculates at least two CQI results, and each result corresponds to one PDSCH EPRE.

[0131] At a certain time t2, the network sends DCI signaling indicating second indication information to the terminal, for example, instructing the network to switch from the first mode to the second mode. The terminal device determines the PDSCH EPRE according to the powerControlOffset configured by the RRC signaling for CQI calculation.

[0132] The following describes obtaining the PDSCH EPRE according to a predefined rule.

[0133] In some embodiments, the terminal device obtains at least one PDSCH EPRE value for CQI calculation according to a predefined rule. The PDSCH EPRE value may include the following values:

[0134] the stored PDSCH EPRE value, e.g., if the network switches from the first mode back to the second mode, the last value indicated by the network in the second mode or the parameter powerControlOffset value configured by the network; The offset for the PDSCH EPRE in the second mode, for example, the range of powerControlOffset configured by the RRC is {8, -15}, and the pre-defined range of powerControlOffset is also {8, -15}, but the determined powerControlOffset value is the normal value configured by the RRC minus a constant (for example, -1).

[0135] The default value of PDSCH EPRE in the first mode of the network.

[0136] In some embodiments, the terminal device obtains at least two PDSCH EPRE values ​​according to a predefined rule. The terminal device obtains one PDSCH EPRE value according to the above method and estimates other PDSCH EPRE values ​​from this value. The estimation rule may be predefined. For example, after the first PDSCH EPRE is determined according to the above method, the second value is equal to the first value minus a constant (e.g., −1), and the third value is equal to the second value minus a constant (e.g., −1). The same applies to other cases.

[0137] In some embodiments, multiple PDSCH EPRE values ​​may be predefined simultaneously.

[0138] The following describes the CQI calculation based on the dynamically adjusted number of CSI-RS ports with reference to an example.

[0139] In some embodiments, the network device configures by RRC signaling at least one CSI-RS port number, which value is associated with the first mode of the network, or a possible or candidate adjustment value for the CSI-RS port number, e.g., portConfig_ES in Table 3.

[0140] The terminal device calculates two CQIs corresponding to nrofPorts and portConfig_ES, respectively, according to the RRC signaling configuration. The RRC signaling may configure multiple correlation values, for example, portConfig_ES1 and portConfig_ES2. The terminal device calculates three CQIs corresponding to nrofPorts, portConfig_ES1, and portConfig_ES2. portConfig_ES may be as shown in Table 7 below.

[0141] [Table 7] In some embodiments, the network device configures by RRC signaling the number of at least one CSI-RS port associated with the first mode of the network, or a possible adjustment or candidate adjustment value for the number of CSI-RS ports, e.g., portConfig_ES in Table 3.

[0142] For example, in the second mode, the terminal device determines the number of CSI-RS ports to use for CQI calculation via nrofPorts configured by RRC signaling. At a certain time t1, the network device sends DCI signaling indicating second indication information to the terminal device, for example, instructing the network to switch from the second mode to the first mode. The terminal device determines the number of CSI-RS ports to use for CQI calculation via portConfig_ES configured by RRC signaling.

[0143] At a certain time t2, the network device sends DCI signaling indicating second indication information to the terminal device, for example, instructing the network to switch from the first mode to the second mode. The terminal device determines the number of CSI-RS ports used for CQI calculation via nrofPorts configured by RRC signaling. portConfig_ES may be as shown in Table 7.

[0144] In some embodiments, the number of CSI-RS ports is indicated by the DCI.

[0145] For example, in the second mode, the terminal device determines the number of CSI-RS ports to be used for CQI calculation via nrofPorts configured by RRC signaling. If the number of CSI-RS ports is dynamically adjusted (e.g., for network energy saving), the network device directly indicates information about the number of CSI-RS ports via DCI, and the terminal device uses the information about the most recently indicated number of CSI-RS ports for CQI calculation.

[0146] The DCI indication information may include two fields, where the first field indicates a CSI-RS resource configuration number and the second field indicates information on the number of CSI-RS ports. If the DCI indicates at least two values, the terminal device performs at least two CQI calculations, and each CQI result corresponds to information on the number of CSI-RS ports.

[0147] In some embodiments, the RRC / MAC CE may configure a list of the number of CSI-RS ports, and the DCI may indicate the list index.

[0148] For example, in the second mode, the terminal device determines the number of CSI-RS ports to use for CQI calculation based on nrofPorts configured by RRC signaling. The network device configures a list of possible values ​​for the number of one CSI-RS port based on RRC signaling, or indicates the list of possible values ​​for the number of one CSI-RS port based on MAC CE signaling. The network device also indicates the list index based on DCI signaling, and the terminal device obtains the number of CSI-RS ports to use for CQI calculation.

[0149] If the DCI indicates at least two values, the terminal device performs at least two CQI calculations. If the DCI signaling indicates a special value, a special list index, or an invalid value, or a list index corresponding to nrofPorts configured by RRC signaling, it corresponds to the network switching from the first mode to the second mode.

[0150] In some embodiments, the DCI may indicate the state of the network and determine the number of CSI-RS ports according to predefined rules.

[0151] For example, in the second mode, the terminal device determines the number of CSI-RS ports to be used for CQI calculation according to nrofPorts configured by RRC signaling. At a certain time t1, the network device sends DCI signaling indicating second indication information to the terminal device, for example, instructing the network to switch from the second mode to the first mode.

[0152] The terminal device obtains the number of CSI-RS ports to be used for CQI calculation according to a predefined rule. The number of CSI-RS ports determined by the predefined rule may be one or at least two. If the number is at least two, the terminal device calculates at least two CQI results, each corresponding to one CSI-RS port configuration.

[0153] At a certain time t2, the network sends DCI signaling indicating second indication information to the terminal, instructing the network to switch from the first mode to the second mode. The terminal device determines the number of CSI-RS ports to be used for CQI calculation based on nrofPorts configured by RRC signaling.

[0154] The following describes obtaining the number of CSI-RS ports according to a predefined rule.

[0155] In some embodiments, the terminal device obtains the number of at least one CSI-RS port for CQI calculation according to a pre-defined rule, which may include the following values:

[0156] the number of stored CSI-RS ports, e.g., if the network switches from the first mode back to the second mode, the last value indicated by the network device in the second mode or the value of the parameter nrofPorts configured by the network device; An offset to the number of CSI-RS ports in the second mode, for example, because the pre-defined rule is half, the determined number of CSI-RS ports is 1 / 2 of the number of CSI-RS ports in the second mode.

[0157] Default value of the number of CSI-RS ports in the first mode of the network In some embodiments, the terminal device obtains the number of at least two CSI-RS ports according to a predefined rule. The terminal device obtains the number of one CSI-RS port according to the above method and estimates the number of other CSI-RS ports from the obtained value. The estimation rule may be predefined. For example, the number of the first CSI-RS port is determined according to the above method, the number of the second CSI-RS port is 1 / 2 of the number of the first CSI-RS port, and the number of the third CSI-RS port is 1 / 2 of the number of the second CSI-RS port. The same applies to other cases.

[0158] In some embodiments, the number of multiple CSI-RS ports may be predefined simultaneously.

[0159] The above-described embodiments are merely illustrative of the present invention, and the present invention is not limited thereto. Appropriate modifications may be made based on the above-described embodiments. For example, each of the above-described embodiments may be used alone, or one or more of the above-described embodiments may be used in combination.

[0160] According to this embodiment, the terminal device calculates a first channel quality indicator (CQI) based on the first parameter and calculates a second channel quality indicator (CQI) based on the second parameter, thereby allowing the terminal device to timely calculate the CQI and accurately and timely reflect the data transmission channel transmission quality, thereby providing accurate channel information for scheduling of the network device.

[0161] <Example 2> The embodiment of the present invention provides a method for indicating channel quality indication, and will be explained from the network device side. Here, the description of the same contents as in the first embodiment will be omitted.

[0162] 4 is a schematic diagram of an example of a method for indicating a channel quality indication according to an embodiment of the present invention. As shown in FIG. 4, the method includes the following steps:

[0163] Step 401: The network device sends first indication information and / or second indication information to the terminal device.

[0164] Here, the first indication information and / or the second indication information is used to determine or indicate at least a second parameter, and the terminal device calculates a first channel quality indication (CQI) based on the first parameter and calculates a second channel quality indication (CQI) based on the second parameter.

[0165] It should be noted that the above-mentioned FIG. 4 merely illustrates an example of the present invention, and the present invention is not limited thereto. For example, the execution order of various steps may be appropriately adjusted, some other steps may be added, or some steps may be removed. Those skilled in the art can make appropriate modifications based on the above content, and are not limited to the description of the above-mentioned FIG. 4.

[0166] In some embodiments, the first parameter is of the same type as the second parameter.

[0167] In some embodiments, the first parameter is first reference signal port information for calculating a first channel quality indication, and the second parameter is second reference signal port information for calculating a second channel quality indication.

[0168] In some embodiments, the first reference signal port information and / or the second reference signal port information includes at least one of a number of ports of a channel state information reference signal (CSI-RS), an offset of the number of ports of a channel state information reference signal (CSI-RS), a port index of a channel state information reference signal (CSI-RS), a time domain resource and / or a frequency domain resource and / or a spatial domain resource corresponding to a port of a channel state information reference signal (CSI-RS).

[0169] In some embodiments, the first parameter is first downlink transmit power information for calculating a first channel quality indication, and the second parameter is second downlink transmit power information for calculating a second channel quality indication.

[0170] In some embodiments, the first downlink transmit power information and / or the second downlink transmit power information comprises at least one of a ratio of an Energy Per Resource Element (EPRE) of a Physical Downlink Shared Channel (PDSCH) to an Energy Per Resource Element (EPRE) of a Channel State Information Reference Signal (CSI-RS) or an offset of a ratio of the Energy Per Resource Element (EPRE) of a Physical Downlink Shared Channel (PDSCH) to an Energy Per Resource Element (EPRE) of a Channel State Information Reference Signal (CSI-RS).

[0171] In some embodiments, the first indication information is used to indicate a downlink transmission power in the first mode and / or the second mode, or to indicate a port number of a reference signal in the first mode and / or the second mode.

[0172] In some embodiments, the first mode is at least one of an energy saving mode, a power saving mode, a dormant mode, a non-normal mode, an inactive mode, a mode after the network device adjusts the number of ports for the PDSCH EPRE / CSI-RS, or a first configuration mode for the number of ports for the PDSCH EPRE / CSI-RS. The second mode is at least one of a non-energy saving mode, a non-power saving mode, a non-dormant mode, a normal mode, an active mode, a mode before the network device adjusts the number of ports for the PDSCH EPRE / CSI-RS, or a second configuration mode for the number of ports for the PDSCH EPRE / CSI-RS.

[0173] In some embodiments, the second indication information is used to indicate at least one of a network state, a CSI-RS resource configuration update / adjustment / switching, a CSI-RS port adjustment, a CSI-RS port activation / deactivation indication, a CSI-RS port enablement indication, a CSI measurement adjustment, a CSI reporting configuration adjustment, a CQI calculation by the terminal device, a CQI calculation by the terminal device using parameters in the first mode, or a CQI calculation by the terminal device using parameters in the second mode.

[0174] In some embodiments, the network state indicates at least one of a first mode, a second mode, a switch from the first mode to the second mode, a switch from the second mode to the first mode, an adjustment of a time domain element, an adjustment of a spatial domain element, or an adjustment of an energy domain element.

[0175] In some embodiments, the first indication information is carried by Radio Resource Control (RRC) signaling and / or a Medium Access Control (MAC) control element (CE), and the second indication information is carried by Downlink Control Information (DCI).

[0176] In some embodiments, the first indication information is carried by Downlink Control Information (DCI) and / or Medium Access Control (MAC) Control Element (CE).

[0177] In some embodiments, the second indication information is carried by Downlink Control Information (DCI) and / or Medium Access Control (MAC) Control Element (CE).

[0178] The above-described embodiments are merely illustrative of the present invention, and the present invention is not limited thereto. Appropriate modifications may be made based on the above-described embodiments. For example, each of the above-described embodiments may be used alone, or one or more of the above-described embodiments may be used in combination.

[0179] According to this embodiment, the network device transmits first indication information and / or second indication information to the terminal device, the first indication information and / or the second indication information is used to determine or indicate at least a second parameter, and the terminal device calculates a first channel quality indication (CQI) based on the first parameter and calculates a second channel quality indication (CQI) based on the second parameter, thereby enabling the terminal device to timely calculate the CQI and accurately and timely reflect the data transmission channel transmission quality, thereby providing accurate channel information for scheduling by the network device.

[0180] Example 3 An embodiment of the present invention provides a channel quality indication calculation device, which may be, for example, a terminal device, or one or more elements or components configured in the terminal device. Descriptions of the same content as in the first embodiment will be omitted.

[0181] 5 is a schematic diagram of an example of a channel quality indication calculation device according to an embodiment of the present invention. As shown in FIG. 5, the channel quality indication calculation device 500 includes the following units:

[0182] The first calculation unit 501 calculates a first channel quality indication based on a first parameter.

[0183] The second calculation unit 502 calculates a second channel quality indication based on the second parameter.

[0184] In some embodiments, the first parameter is first reference signal port information for calculating the first channel quality indication, and the second parameter is second reference signal port information for calculating the second channel quality indication.

[0185] In some embodiments, the first reference signal port information and / or the second reference signal port information includes at least one of a number of ports of a channel state information reference signal (CSI-RS), an offset of the number of ports of a channel state information reference signal (CSI-RS), a port index of a channel state information reference signal (CSI-RS), a time domain resource and / or a frequency domain resource and / or a spatial domain resource corresponding to a port of a channel state information reference signal (CSI-RS).

[0186] In some embodiments, the first parameter is first downlink transmit power information for calculating a first channel quality indication, and the second parameter is second downlink transmit power information for calculating a second channel quality indication.

[0187] In some embodiments, the first downlink transmit power information and / or the second downlink transmit power information comprises at least one of a ratio of an Energy Per Resource Element (EPRE) of a Physical Downlink Shared Channel (PDSCH) to an Energy Per Resource Element (EPRE) of a Channel State Information Reference Signal (CSI-RS) or an offset of a ratio of the Energy Per Resource Element (EPRE) of a Physical Downlink Shared Channel (PDSCH) to an Energy Per Resource Element (EPRE) of a Channel State Information Reference Signal (CSI-RS).

[0188] In some embodiments, as shown in FIG. 5, the channel quality indication calculation device 500 further includes the following units:

[0189] The receiving unit 503 receives the first instruction information and / or the second instruction information transmitted by the network device, which is used to determine or indicate at least the second parameter.

[0190] In some embodiments, the first indication information is used to indicate a downlink transmission power in the first mode and / or the second mode, or to indicate a port number of a reference signal in the first mode and / or the second mode.

[0191] The first mode is at least one of an energy saving mode, a power saving mode, a dormant mode, a non-normal mode, an inactive mode, a mode after the network device adjusts the number of ports of the PDSCH EPRE / CSI-RS, or a first configuration mode of the number of ports of the PDSCH EPRE / CSI-RS. The second mode is at least one of a non-energy saving mode, a non-power saving mode, a non-dormant mode, a normal mode, an active mode, a mode before the network device adjusts the number of ports of the PDSCH EPRE / CSI-RS, or a second configuration mode of the number of ports of the PDSCH EPRE / CSI-RS.

[0192] In some embodiments, the second indication information is used to indicate at least one of a network state, a CSI-RS resource configuration update / adjustment / switching, a CSI-RS port adjustment, a CSI-RS port activation / deactivation indication, a CSI-RS port enablement indication, a CSI measurement adjustment, a CSI reporting configuration adjustment, a CQI calculation by the terminal device, a CQI calculation by the terminal device using parameters in the first mode, or a CQI calculation by the terminal device using parameters in the second mode.

[0193] In some embodiments, the network state indicates at least one of a first mode, a second mode, a switch from the first mode to the second mode, a switch from the second mode to the first mode, an adjustment of a time domain element, an adjustment of a spatial domain element, or an adjustment of an energy domain element. The spatial domain element indicates at least one of an antenna port, a logical port, a reference signal port, an antenna coefficient, an antenna element, and an antenna unit. The energy domain element indicates at least one of an energy per resource element of a Physical Downlink Shared Channel (PDSCH) or an energy per resource element of a Channel State Information Reference Signal.

[0194] In some embodiments, the first indication information is carried by Radio Resource Control (RRC) signaling and / or a Medium Access Control (MAC) control element (CE), and the second indication information is carried by Downlink Control Information (DCI).

[0195] In some embodiments, when the receiving unit 503 receives the first indication information and the second indication information, the second calculation unit 502 calculates a second channel quality indication using the second parameter indicated by the first indication information and / or the second indication information and / or the acquired third parameter.

[0196] In some embodiments, when the receiving unit 503 receives the first indication information, the second calculating unit 502 calculates a second channel quality indication using the second parameter indicated by the first indication information and / or the acquired third parameter.

[0197] In some embodiments, the first indication information is carried by Downlink Control Information (DCI) and / or Medium Access Control (MAC) Control Element (CE).

[0198] In some embodiments, when the receiving unit 503 receives the first indication information, the second calculating unit 502 calculates a second channel quality indication using the second parameter indicated by the first indication information and / or the acquired third parameter.

[0199] In some embodiments, the second indication information is carried by Downlink Control Information (DCI) and / or Medium Access Control (MAC) Control Element (CE).

[0200] In some embodiments, when the receiving unit 503 receives the second indication information, the second calculation unit 502 calculates the channel quality indication using the second parameter determined based on the second indication information and / or the acquired third parameter.

[0201] In some embodiments, the second calculation unit 502 determines the second parameter based on the first parameter and / or a predefined rule and / or a pre-set parameter, and calculates the second channel quality indication using the second parameter and / or the obtained third parameter.

[0202] In some embodiments, as shown in FIG. 5, the channel quality indication calculation device 500 further includes the following units:

[0203] The sending unit 504 feeds back the first channel quality indication and / or the second channel quality indication to the network device.

[0204] In some embodiments, the first channel quality indication and / or the second channel quality indication are reported aperiodically, periodically, or semi-continuously.

[0205] The above-described embodiments are merely illustrative of the present invention, and the present invention is not limited thereto. Appropriate modifications may be made based on the above-described embodiments. For example, each of the above-described embodiments may be used alone, or one or more of the above-described embodiments may be used in combination.

[0206] It should be noted that the above description only describes the components or modules relevant to the present invention, but the present invention is not limited thereto. The channel quality indication calculation device 500 may further include other components or modules. For specific contents of these components or modules, reference may be made to the related art.

[0207] 5 only exemplarily illustrates the connection relationships or signal directions between various components or modules, but it will be apparent to those skilled in the art that various related technologies, such as bus connections, can be used. The various components or modules described above may be implemented by hardware devices, such as a processor, a memory, a transmitter, and a receiver, and the present invention is not limited thereto.

[0208] According to this embodiment, the terminal device calculates a first channel quality indicator (CQI) based on the first parameter and calculates a second channel quality indicator (CQI) based on the second parameter, thereby allowing the terminal device to timely calculate the CQI and accurately and timely reflect the data transmission channel transmission quality, thereby providing accurate channel information for scheduling of the network device.

[0209] Example 4 An embodiment of the present invention provides an indication device for indicating a channel quality indication. The device may be, for example, a network device, or one or more elements or components configured in the network device. Descriptions of the same contents as those in the first to third embodiments will be omitted.

[0210] 6 is a schematic diagram of an example of an apparatus 600 for indicating a channel quality indication according to an embodiment of the present invention. As shown in FIG. 6, the apparatus 600 for indicating a channel quality indication includes the following units:

[0211] The transmitting unit 601 transmits the first instruction information and / or the second instruction information to the terminal device.

[0212] Here, the first indication information and / or the second indication information is used to determine or indicate at least a second parameter, and the terminal device calculates a first channel quality indication based on the first parameter and calculates a second channel quality indication based on the second parameter.

[0213] In some embodiments, as shown in FIG. 6, the device 600 for indicating a channel quality indication further includes the following units:

[0214] The receiver 602 receives a first channel quality indication and / or at least one second channel quality indication.

[0215] The above-described embodiments are merely illustrative of the present invention, and the present invention is not limited thereto. Appropriate modifications may be made based on the above-described embodiments. For example, each of the above-described embodiments may be used alone, or one or more of the above-described embodiments may be used in combination.

[0216] It should be noted that the above description only describes the components or modules relevant to the present invention, but the present invention is not limited thereto. The channel quality indication indicating device 600 may further include other components or modules. For specific contents of these components or modules, please refer to the related art.

[0217] 6 only exemplarily illustrates the connection relationships or signal directions between various components or modules, but it will be apparent to those skilled in the art that various related technologies, such as bus connections, may be used. The various components or modules described above may be implemented by hardware devices, such as a processor, a memory, a transmitter, and a receiver, and the present invention is not limited thereto.

[0218] According to this embodiment, the network device transmits first indication information and / or second indication information to the terminal device, the first indication information and / or the second indication information is used to determine or indicate at least a second parameter, and the terminal device calculates a first channel quality indication (CQI) based on the first parameter and calculates a second channel quality indication (CQI) based on the second parameter, thereby enabling the terminal device to timely calculate the CQI and accurately and timely reflect the data transmission channel transmission quality, thereby providing accurate channel information for scheduling by the network device.

[0219] <Example 5> The embodiment of the present invention further provides a communication system, and may refer to FIG. 1, and the description of the same contents as those in the first to fourth embodiments will be omitted.

[0220] In some embodiments, the communication system 100 may include at least a network device 101 and a terminal device 102 .

[0221] The network device 101 transmits the first indication information and / or the second indication information, which are used to determine or indicate at least a second parameter.

[0222] The terminal device 102 calculates a first channel quality indication (CQI) based on the first parameter and calculates a second channel quality indication (CQI) based on the second parameter.

[0223] An embodiment of the present invention further provides a network device, which may be, for example, a base station, but the present invention is not limited thereto and may be other network devices.

[0224] 7 is a schematic diagram of a network device according to an embodiment of the present invention. As shown in FIG. 7, the network device 700 may include a processor 710 (e.g., a central processing unit (CPU)) and a memory 720, which is connected to the processor 710. The memory 720 may store various data and may further store an information processing program 730, which is executed under the control of the processor 710.

[0225] For example, the processor 710 may execute a program to realize the method for indicating a channel quality indication described in Example 2. For example, the processor 710 may be configured to execute a step of transmitting first indication information and / or second indication information to a terminal device. The first indication information and / or the second indication information are used to determine or indicate at least a second parameter, and the terminal device calculates a first channel quality indication (CQI) based on the first parameter and calculates a second channel quality indication (CQI) based on the second parameter.

[0226] 7, the network device 700 may further include a transceiver 740 and an antenna 750. The functions of the above components are similar to those of the prior art, and their description will be omitted here. The network device 700 does not need to include all the units shown in FIG. 7. The network device 700 may further include units not shown in FIG. 7, and may refer to the prior art.

[0227] The embodiment of the present invention further provides a terminal device, but the present invention is not limited thereto and may be other devices.

[0228] 8 is a schematic diagram of a terminal device according to an embodiment of the present invention. As shown in FIG. 8, the terminal device 800 may include a processor 810 and a memory 820, where the memory 820 stores data and programs and is connected to the processor 810. It should be noted that this diagram is illustrative and that other types of structures may be used to supplement or replace the structures to realize communication or other functions.

[0229] For example, the processor 810 may execute a program to implement the channel quality indication calculation method described in Example 1. For example, the processor 810 may be configured to execute the steps of: calculating a first channel quality indication (CQI) based on a first parameter; and calculating a second channel quality indication (CQI) based on a second parameter.

[0230] 8, the terminal device 800 may further include a communication module 830, an input unit 840, a display 850, a power supply 860, and the like. Here, the functions of the above units are similar to those of the prior art, and description thereof will be omitted here. Note that the terminal device 800 does not need to include all the units shown in FIG. 8. The terminal device 800 may further include units not shown in FIG. 8, and prior art may be referred to.

[0231] An embodiment of the present invention further provides a computer-readable program, which, when executed in a terminal device, causes the terminal device to perform the channel quality indication calculation method described in embodiment 1.

[0232] An embodiment of the present invention further provides a storage medium having a computer-readable program stored therein, the program causing a terminal device to perform the channel quality indication calculation method described in embodiment 1 when the program is executed.

[0233] An embodiment of the present invention further provides a computer-readable program, which, when executed in a network device, causes the network device to perform the method for indicating a channel quality indication described in embodiment 2.

[0234] An embodiment of the present invention further provides a storage medium having a computer-readable program stored therein, the program causing a network device to perform the method for indicating a channel quality indication described in embodiment 2 when the program is executed.

[0235] The above-described apparatus and method of the present invention may be realized by hardware or a combination of hardware and software. The present invention relates to a computer-readable program that, when executed by a logic unit, causes the logic unit to implement the above-described apparatus or components, or to implement the above-described various methods or steps. The present invention also relates to a storage medium for storing the above-described program, such as a hard disk, magnetic disk, optical disk, DVD, flash memory, etc.

[0236] Each processing method in each device described with reference to the embodiments of the present invention may be implemented by hardware, a software module executed by a processor, or a combination of both. For example, one or more of the functional block diagrams shown in the drawings, or one or more combinations of the functional block diagrams, may correspond to each software module in a computer program flow or each hardware module. These software modules may correspond to each step shown in the drawings. These hardware modules may be implemented by implementing these software modules in hardware, for example, using a field programmable gate array (FPGA).

[0237] The software module may be located in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, mobile hard disk, CD-ROM, or any other form of storage medium known to those skilled in the art. The storage medium may be connected to the processor so that the processor reads information from or writes information to the storage medium, or the storage medium may be a component of the processor. The processor and the storage medium may be located in an ASIC. The software module may be stored in the memory of the mobile terminal or in a memory card inserted into the mobile terminal. For example, if a device (e.g., a mobile terminal) uses a relatively large-capacity MEGA-SIM card or a large-capacity flash memory device, the software module may be stored in the MEGA-SIM card or the large-capacity flash memory device.

[0238] One or more functional blocks and / or one or more combinations of functional blocks in the functional block diagrams set forth in the figures may be implemented with a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or any suitable combination thereof to perform the functions described herein. One or more functional blocks and / or one or more combinations of functional blocks in the functional block diagrams set forth in the figures may be implemented with, for example, a combination of computing devices, such as a combination of a DSP and a microprocessor, a combination of multiple microprocessors, one or more microprocessors in combination with a DSP communication, or any other configuration.

[0239] Although the present invention has been described above with reference to specific embodiments, the above description is merely illustrative and does not limit the scope of protection of the present invention. Various modifications and changes may be made to the present invention without departing from the spirit and principles of the present invention, and these modifications and changes are also within the scope of the present invention.

[0240] Furthermore, the following supplementary notes are disclosed regarding the embodiments including the above examples. (Appendix 1) A method for calculating a channel quality indication (CQI), comprising: The terminal device calculates a first channel quality indication (CQI) based on the first parameter; and the terminal device calculating a second channel quality indication (CQI) based on a second parameter. (Appendix 2) 2. The method of claim 1, wherein the first parameter is of the same type as the second parameter. (Appendix 3) 2. The method of claim 1, wherein the first parameter is first reference signal port information for calculating the first channel quality indication, and the second parameter is second reference signal port information for calculating the second channel quality indication. (Appendix 4) The method of claim 3, wherein the first reference signal port information and / or the second reference signal port information includes at least one of a number of ports of a channel state information reference signal (CSI-RS), an offset of the number of ports of a channel state information reference signal (CSI-RS), a port index of a channel state information reference signal (CSI-RS), and a time domain resource, a frequency domain resource, and / or a spatial domain resource corresponding to a port of a channel state information reference signal (CSI-RS). (Appendix 5) 2. The method of claim 1, wherein the first parameter is first downlink transmit power information for calculating the first channel quality indication, and the second parameter is second downlink transmit power information for calculating the second channel quality indication. (Appendix 6) 6. The method of claim 5, wherein the first downlink transmission power information and / or the second downlink transmission power information includes at least one of a ratio of an Energy Per Resource Element (EPRE) of a Physical Downlink Shared Channel (PDSCH) to an EPRE of a Channel State Information Reference Signal (CSI-RS), or an offset of a ratio of the EPRE of the Physical Downlink Shared Channel (PDSCH) to the EPRE of the Channel State Information Reference Signal (CSI-RS). (Appendix 7) 7. The method of any one of Supplementary Notes 1 to 6, further comprising a step of receiving, by a terminal device, first instruction information and / or second instruction information sent by a network device, wherein the first instruction information and / or second instruction information is used to determine or indicate at least the second parameter. (Appendix 8) 8. The method of claim 7, wherein the first indication information is used to indicate downlink transmission power in the first mode and / or the second mode, or is used to indicate the number of ports of a reference signal in the first mode and / or the second mode. (Appendix 9) 9. The method of claim 8, wherein the first mode is at least one of an energy saving mode, a power saving mode, a dormant mode, a non-normal mode, an inactive mode, a mode after the network device adjusts the number of ports of PDSCH EPRE / CSI-RS, or a first configuration mode of the number of ports of PDSCH EPRE / CSI-RS, and the second mode is at least one of a non-energy saving mode, a non-power saving mode, a non-dormant mode, a normal mode, an active mode, a mode before the network device adjusts the number of ports of PDSCH EPRE / CSI-RS, or a second configuration mode of the number of ports of PDSCH EPRE / CSI-RS. (Appendix 10) The method described in Supplementary Note 7, wherein the second indication information is used to indicate at least one of a network state, a CSI-RS resource configuration update / adjustment / switching, a CSI-RS port adjustment, a CSI-RS port activation / deactivation instruction, a CSI-RS port enablement instruction, a CSI measurement adjustment, a CSI reporting configuration adjustment, a CQI calculation by the terminal device, a CQI calculation by the terminal device using parameters in the first mode, or a CQI calculation by the terminal device using parameters in the second mode. (Appendix 11) the network state indicates at least one of a first mode, a second mode, a switch from the first mode to the second mode, a switch from the second mode to the first mode, an adjustment of a time domain element, an adjustment of a spatial domain element, or an adjustment of an energy domain element; 11. The method of claim 10, wherein the spatial domain element indicates at least one of an antenna port, a logical port, a reference signal port, an antenna coefficient, an antenna element, and an antenna unit, and the energy domain element indicates at least one of an energy per resource element of a physical downlink shared channel (PDSCH) or an energy per resource element of a channel state information reference signal. (Appendix 12) 12. The method of any of Supplementary Notes 7 to 11, wherein the first indication information is carried by Radio Resource Control (RRC) signaling and / or a Medium Access Control (MAC) control element (CE), and the second indication information is carried by Downlink Control Information (DCI). (Appendix 13) The method described in Supplementary Note 12, wherein when the terminal device receives the first indication information and the second indication information, the terminal device calculates the second channel quality indication using the second parameter indicated by the first indication information and / or the second indication information and / or the acquired third parameter. (Appendix 14) The method described in Supplementary Note 12, wherein when the terminal device receives the first indication information, it calculates the second channel quality indication using the second parameter indicated by the first indication information and / or the acquired third parameter. (Appendix 15) 12. The method of any of Supplementary Notes 7 to 11, wherein the first indication information is carried by Downlink Control Information (DCI) and / or a Medium Access Control (MAC) Control Element (CE). (Appendix 16) The method described in Supplementary Note 15, wherein when the terminal device receives the first indication information, it calculates the second channel quality indication using the second parameter indicated by the first indication information and / or the acquired third parameter. (Appendix 17) 12. The method of any of Supplementary Notes 7 to 11, wherein the second indication information is carried by Downlink Control Information (DCI) and / or a Medium Access Control (MAC) Control Element (CE). (Appendix 18) The method described in Supplementary Note 17, wherein when the terminal device receives the second indication information, it calculates a channel quality indication using the second parameter determined based on the second indication information and / or the acquired third parameter. (Appendix 19) 7. The method of any one of Supplementary Notes 1 to 6, further comprising a step in which a terminal device determines the second parameter based on the first parameter and / or a predefined rule and / or a pre-set parameter. (Appendix 20) 20. The method of claim 19, wherein the terminal device calculates the second channel quality indication using the second parameter and / or the acquired third parameter. (Appendix 21) 21. The method of any one of Supplementary Notes 13, 14, 16, 18, and 20, wherein the acquired third parameter is at least one of a parameter configured for the terminal device by the network device, a parameter calculated by the terminal device according to a predetermined rule, a parameter pre-stored by the terminal device, or a default parameter of the terminal device. (Appendix 22) 22. The method of any of Supplementary Notes 1 to 21, wherein the terminal device calculates a second channel quality indication and feeds back the first channel quality indication and / or the second channel quality indication to a network device. (Appendix 23) 23. The method of claim 22, wherein the first channel quality indication and / or the second channel quality indication are reported aperiodically, periodically, or semi-continuously. (Appendix 24) 22. A method according to any one of Supplementary Notes 1 to 21, wherein the terminal device calculates at least two second channel quality indications and feeds back the first channel quality indication and / or the at least two second channel quality indications to a network device. (Appendix 25) 25. The method of claim 24, wherein the first channel quality indication and / or the at least two second channel quality indications are reported aperiodically, periodically, or semi-continuously. (Appendix 26) A method for indicating a channel quality indication (CQI), comprising: The network device transmits the first indication information and / or the second indication information to the terminal device; A method in which the first indication information and / or the second indication information are used to determine or indicate at least a second parameter, and the terminal device calculates a first channel quality indication (CQI) based on the first parameter and calculates a second channel quality indication (CQI) based on the second parameter. (Appendix 27) 27. The method of claim 26, wherein the first parameter is of the same type as the second parameter. (Appendix 28) 27. The method of claim 26, wherein the first parameter is first reference signal port information for calculating the first channel quality indication, and the second parameter is second reference signal port information for calculating the second channel quality indication. (Appendix 29) 29. The method of claim 28, wherein the first reference signal port information and / or the second reference signal port information includes at least one of a number of ports of a channel state information reference signal (CSI-RS), an offset of the number of ports of a channel state information reference signal (CSI-RS), a port index of a channel state information reference signal (CSI-RS), and a time domain resource, a frequency domain resource, and / or a spatial domain resource corresponding to a port of a channel state information reference signal (CSI-RS). (Appendix 30) 27. The method of claim 26, wherein the first parameter is first downlink transmit power information for calculating the first channel quality indication, and the second parameter is second downlink transmit power information for calculating the second channel quality indication. (Appendix 31) 31. The method of claim 30, wherein the first downlink transmission power information and / or the second downlink transmission power information comprises at least one of a ratio of an Energy Per Resource Element (EPRE) of a Physical Downlink Shared Channel (PDSCH) to an EPRE of a Channel State Information Reference Signal (CSI-RS), or an offset of a ratio of the Energy Per Resource Element (EPRE) of a Physical Downlink Shared Channel (PDSCH) to the EPRE of a Channel State Information Reference Signal (CSI-RS). (Appendix 32) 27. The method of claim 26, wherein the first indication information is used to indicate downlink transmission power in the first mode and / or the second mode, or to indicate the number of ports of a reference signal in the first mode and / or the second mode. (Appendix 33) 33. The method of claim 32, wherein the first mode is at least one of an energy saving mode, a power saving mode, a dormant mode, a non-normal mode, an inactive mode, a mode after the network device adjusts the number of ports of PDSCH EPRE / CSI-RS, or a first configuration mode of the number of ports of PDSCH EPRE / CSI-RS, and the second mode is at least one of a non-energy saving mode, a non-power saving mode, a non-dormant mode, a normal mode, an active mode, a mode before the network device adjusts the number of ports of PDSCH EPRE / CSI-RS, or a second configuration mode of the number of ports of PDSCH EPRE / CSI-RS. (Appendix 34) The method of Supplementary Note 26, wherein the second indication information is used to indicate at least one of a network state, a CSI-RS resource configuration update / adjustment / switching, a CSI-RS port adjustment, a CSI-RS port activation / deactivation instruction, a CSI-RS port enablement instruction, a CSI measurement adjustment, a CSI reporting configuration adjustment, a CQI calculation by the terminal device, a CQI calculation by the terminal device using parameters in the first mode, or a CQI calculation by the terminal device using parameters in the second mode. (Appendix 35) the network state indicates at least one of a first mode, a second mode, a switch from the first mode to the second mode, a switch from the second mode to the first mode, an adjustment of a time domain element, an adjustment of a spatial domain element, or an adjustment of an energy domain element; 35. The method of claim 34, wherein the spatial domain element indicates at least one of an antenna port, a logical port, a reference signal port, an antenna coefficient, an antenna element, and an antenna unit, and the energy domain element indicates at least one of an energy per resource element of a physical downlink shared channel (PDSCH) or an energy per resource element of a channel state information reference signal. (Appendix 36) 36. The method of any of Supplementary Notes 26 to 35, wherein the first indication information is carried by Radio Resource Control (RRC) signaling and / or a Medium Access Control (MAC) control element (CE), and the second indication information is carried by Downlink Control Information (DCI). (Appendix 37) 36. The method of any of Supplementary Notes 26 to 35, wherein the first indication information is carried by downlink control information (DCI) and / or a medium access control (MAC) control element (CE). (Appendix 38) 36. The method of any of Supplementary Notes 26 to 35, wherein the second indication information is carried by downlink control information (DCI) and / or a medium access control (MAC) control element (CE). (Appendix 39) 26. A terminal device comprising: a memory having a computer program stored therein; and a processor, the processor being configured to execute the computer program to implement a method for calculating a channel quality indication (CQI) according to any one of Supplementary Notes 1 to 25. (Appendix 40) 39. A network device comprising: a memory having a computer program stored therein; and a processor, the processor being configured to execute the computer program to implement the method for calculating a channel quality indication (CQI) according to any of claims 26 to 38.

Claims

1. 1. An apparatus for calculating a channel quality indication, comprising: a first calculation unit for calculating a first channel quality indication based on the first parameter; a second calculation unit that calculates a second channel quality indication based on the second parameter.

2. 2. The apparatus of claim 1, wherein the first parameter is first reference signal port information for calculating the first channel quality indication, and the second parameter is second reference signal port information for calculating the second channel quality indication.

3. 3. The apparatus of claim 2, wherein the first reference signal port information and / or the second reference signal port information includes at least one of a port number of a channel state information reference signal, an offset of the port number of a channel state information reference signal, a port index of a channel state information reference signal, and a time domain resource, a frequency domain resource, and / or a spatial domain resource corresponding to the port of the channel state information reference signal.

4. 2. The apparatus of claim 1, wherein the first parameter is first downlink transmit power information for calculating the first channel quality indication, and the second parameter is second downlink transmit power information for calculating the second channel quality indication.

5. 5. The apparatus of claim 4, wherein the first downlink transmission power information and / or the second downlink transmission power information comprises at least one of a ratio of energy per resource element of a physical downlink shared channel to an energy per resource element of a channel state information reference signal or an offset of a ratio of energy per resource element of a physical downlink shared channel to an energy per resource element of a channel state information reference signal.

6. 2. The device of claim 1, further comprising: a receiver configured to receive first indication information and / or second indication information transmitted by a network device, the first indication information and / or second indication information being used to determine or indicate at least the second parameter.

7. The first indication information is used to indicate downlink transmission power in the first mode and / or the second mode, or is used to indicate the number of ports of a reference signal in the first mode and / or the second mode; and 7. The apparatus of claim 6, wherein the first mode is at least one of an energy saving mode, a power saving mode, a dormant mode, a non-normal mode, an inactive mode, a mode after the network device adjusts the number of ports of energy / channel state information reference signals per resource element of a physical downlink shared channel, or a first configuration mode of the number of ports of energy / channel state information reference signals per resource element of a physical downlink shared channel; and the second mode is at least one of a non-energy saving mode, a non-power saving mode, a non-dormant mode, a normal mode, an active mode, a mode before the network device adjusts the number of ports of energy / channel state information reference signals per resource element of a physical downlink shared channel, or a second configuration mode of the number of ports of energy / channel state information reference signals per resource element of a physical downlink shared channel.

8. The second indication information is used to indicate at least one of a network state, a channel state information reference signal resource configuration update / adjustment / switching, a channel state information reference signal port adjustment, a channel state information reference signal port activation / deactivation indication, a channel state information reference signal port enablement indication, a channel state information measurement adjustment, a channel state information report configuration adjustment, a channel quality indication calculation by a terminal device, a channel quality indication calculation by a terminal device using parameters in a first mode, or a channel quality indication calculation by a terminal device using parameters in a second mode; the network state indicates at least one of a first mode, a second mode, a switch from the first mode to the second mode, a switch from the second mode to the first mode, an adjustment of a time domain element, an adjustment of a spatial domain element, or an adjustment of an energy domain element; 7. The apparatus of claim 6, wherein the spatial domain element indicates at least one of an antenna port, a logical port, a reference signal port, an antenna coefficient, an antenna element, and an antenna unit, and the energy domain element indicates at least one of an energy per resource element of a physical downlink shared channel or an energy per resource element of a channel state information reference signal.

9. The apparatus of claim 6 , wherein the first indication information is carried by a radio resource control signaling and / or a medium access control control element, and the second indication information is carried by a downlink control information.

10. 10. The device of claim 9, wherein, when the terminal device receives the first indication information and the second indication information, the terminal device calculates the second channel quality indication using the second parameter indicated by the first indication information and / or the second indication information and / or an acquired third parameter.

11. 10. The device according to claim 9, wherein, when the terminal device receives the first indication information, the terminal device calculates the second channel quality indication using the second parameter indicated by the first indication information and / or an acquired third parameter.

12. The apparatus of claim 6 , wherein the first indication information is carried by a downlink control element and / or a medium access control element.

13. 13. The device of claim 12, wherein, when the terminal device receives the first indication information, the terminal device calculates the second channel quality indication using the second parameter indicated by the first indication information and / or an acquired third parameter.

14. The apparatus of claim 6 , wherein the second indication information is carried by a downlink control element and / or a medium access control element.

15. The device according to claim 14, wherein, when the terminal device receives the second indication information, the terminal device calculates a channel quality indication using the second parameter determined based on the second indication information and / or the acquired third parameter.

16. 2. The apparatus of claim 1, wherein the terminal device determines the second parameter based on the first parameter and / or a predefined rule and / or a pre-set parameter, and the terminal device calculates the second channel quality indication using the second parameter and / or an obtained third parameter.

17. The apparatus of claim 1 , further comprising: a transmitter configured to feed back the first channel quality indication and / or the at least one second channel quality indication to a network device.

18. 18. The apparatus of claim 17, wherein the first channel quality indication and / or the at least one second channel quality indication are reported aperiodically, periodically, or semi-continuously.

19. 1. An apparatus for indicating a channel quality indication, comprising: a transmitting unit that transmits the first instruction information and / or the second instruction information to the terminal device; The first indication information and / or the second indication information are used to determine or indicate at least a second parameter, and the terminal device calculates a first channel quality indication based on the first parameter and calculates a second channel quality indication based on the second parameter.

20. A communication system including a network device and a terminal device, the network device transmits first indication information and / or second indication information, the first indication information and / or the second indication information being used to determine or indicate at least a second parameter; A communication system, wherein the terminal device calculates a first channel quality indication based on a first parameter and a second channel quality indication based on the second parameter.

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