WO2023283782A1 - 一种信道状态反馈的方法及其装置 - Google Patents

一种信道状态反馈的方法及其装置 Download PDF

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Publication number
WO2023283782A1
WO2023283782A1 PCT/CN2021/105835 CN2021105835W WO2023283782A1 WO 2023283782 A1 WO2023283782 A1 WO 2023283782A1 CN 2021105835 W CN2021105835 W CN 2021105835W WO 2023283782 A1 WO2023283782 A1 WO 2023283782A1
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Prior art keywords
time
csi
indication information
information
feedback
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PCT/CN2021/105835
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English (en)
French (fr)
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WO2023283782A9 (zh
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朱亚军
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北京小米移动软件有限公司
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Priority to CN202180002127.5A priority Critical patent/CN115956371A/zh
Priority to PCT/CN2021/105835 priority patent/WO2023283782A1/zh
Publication of WO2023283782A1 publication Critical patent/WO2023283782A1/zh
Publication of WO2023283782A9 publication Critical patent/WO2023283782A9/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements

Definitions

  • the present disclosure relates to the technical field of communication, and in particular to a channel state feedback method and device thereof.
  • the adaptive modulation and coding (AMC) function is supported, and the base station can flexibly adjust the transmission parameters through the channel state information (Channel State Information, CSI) fed back by the terminal.
  • CSI Channel State Information
  • the terminal equipment needs to communicate with the network equipment through the satellite, which leads to a long transmission distance between the terminal equipment and the network equipment. If the CSI feedback is performed according to the traditional mechanism, the CSI information will be unavailable. situation, resulting in a waste of resources.
  • Embodiments of the present disclosure provide a method and device for channel state feedback, which can be applied in the technical field of communication.
  • an embodiment of the present disclosure provides a channel state feedback method, the method is executed by a terminal device, and the method includes: sending predicted channel state information CSI to a network device based on a first feedback moment.
  • an embodiment of the present disclosure provides another channel state feedback method, the method is executed by a network device, and the method includes: receiving predicted channel state information CSI sent by a terminal device based on a first feedback moment.
  • the embodiment of the present disclosure provides a communication device, which has part or all of the functions of the terminal device in the method described in the first aspect above, for example, the communication device may have part or all of the functions in the present disclosure
  • the functions in the embodiments may also have the functions of independently implementing any one of the embodiments in the present disclosure.
  • the functions described above may be implemented by hardware, or may be implemented by executing corresponding software on the hardware.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the embodiment of the present disclosure provides another communication device, which has some or all functions of the network device in the method example described in the second aspect above, for example, the function of the communication device may have some of the functions in the present disclosure Or the functions in all the embodiments may also have the function of implementing any one embodiment in the present disclosure alone.
  • the functions described above may be implemented by hardware, or may be implemented by executing corresponding software on the hardware.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • an embodiment of the present disclosure provides a communication device, where the communication device includes a processor, and when the processor invokes a computer program in a memory, executes the method described in the first aspect above.
  • an embodiment of the present disclosure provides a communication device, where the communication device includes a processor, and when the processor invokes a computer program in a memory, it executes the method described in the second aspect above.
  • an embodiment of the present disclosure provides a communication device, the communication device includes a processor and a memory, and a computer program is stored in the memory; when the computer program is executed by the processor, the communication device executes the above-mentioned The method described in the first aspect.
  • an embodiment of the present disclosure provides a communication device, the communication device includes a processor and a memory, and a computer program is stored in the memory; when the computer program is executed by the processor, the communication device executes the above-mentioned The method described in the second aspect.
  • an embodiment of the present disclosure provides a communication device, the device includes a processor and an interface circuit, the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to make the The device executes the method described in the first aspect above.
  • an embodiment of the present disclosure provides a communication device, the device includes a processor and an interface circuit, the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to make the The device executes the method described in the second aspect above.
  • an embodiment of the present disclosure provides a communication system, the system includes the communication device described in the third aspect and the communication device described in the fourth aspect, or the system includes the communication device described in the fifth aspect and The communication device described in the sixth aspect, or, the system includes the communication device described in the seventh aspect and the communication device described in the eighth aspect, or, the system includes the communication device described in the ninth aspect and the communication device described in the tenth aspect the communication device described above.
  • an embodiment of the present invention provides a computer-readable storage medium for storing instructions used by the above-mentioned terminal device, and when the instructions are executed, the method described in the above-mentioned first aspect is implemented.
  • an embodiment of the present invention provides a computer-readable storage medium for storing instructions used by the above-mentioned network device, and when the instructions are executed, the method described in the above-mentioned second aspect is implemented.
  • the present disclosure further provides a computer program product including a computer program, which, when run on a computer, causes the computer to execute the method described in the first aspect above.
  • the present disclosure further provides a computer program product including a computer program, which, when run on a computer, causes the computer to execute the method described in the second aspect above.
  • the present disclosure provides a chip system
  • the chip system includes at least one processor and an interface, used to support the terminal device to implement the functions involved in the first aspect, for example, determine or process the data involved in the above method and at least one of information.
  • the chip system further includes a memory, and the memory is configured to store necessary computer programs and data of the terminal device.
  • the system-on-a-chip may consist of chips, or may include chips and other discrete devices.
  • the present disclosure provides a chip system
  • the chip system includes at least one processor and an interface, used to support the network device to implement the functions involved in the second aspect, for example, determine or process the data involved in the above method and at least one of information.
  • the chip system further includes a memory, and the memory is used for saving necessary computer programs and data of the network device.
  • the system-on-a-chip may consist of chips, or may include chips and other discrete devices.
  • the present disclosure provides a computer program that, when run on a computer, causes the computer to execute the method described in the first aspect above.
  • the present disclosure provides a computer program that, when run on a computer, causes the computer to execute the method described in the second aspect above.
  • FIG. 1 is a schematic structural diagram of a communication system provided by an embodiment of the present disclosure
  • FIG. 2 is a schematic flowchart of a method for channel state feedback provided by an embodiment of the present disclosure
  • FIG. 3 is a schematic flowchart of a method for channel state feedback provided by another embodiment of the present disclosure.
  • FIG. 4 is a schematic flowchart of a method for channel state feedback provided by another embodiment of the present disclosure.
  • Fig. 4a is a schematic diagram of a trigger instruction provided by an embodiment of the present disclosure.
  • FIG. 5 is a schematic flowchart of a method for channel state feedback provided by another embodiment of the present disclosure.
  • FIG. 6 is a schematic flowchart of a method for channel state feedback provided by another embodiment of the present disclosure.
  • FIG. 7 is a schematic flowchart of a channel state feedback method provided by another embodiment of the present disclosure.
  • FIG. 8 is a schematic flowchart of a method for channel state feedback provided by another embodiment of the present disclosure.
  • FIG. 9 is a schematic flowchart of a method for channel state feedback provided by another embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of a communication device according to an embodiment of the present disclosure.
  • Fig. 11 is a schematic structural diagram of a communication device according to another embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram of a chip according to an embodiment of the present disclosure.
  • CSI is the channel attribute of the communication link. It describes the fading factor of the signal on each transmission path, that is, the value of each element in the channel gain matrix H, such as signal scattering (Scattering), environmental fading (fading, multipath fading or shadowing fading), distance attenuation (power decay of distance) and other information.
  • CSI can make the communication system adapt to the current channel conditions, and provides a guarantee for high-reliability and high-speed communication in a multi-antenna system.
  • FIG. 1 is a schematic structural diagram of a communication system provided by an embodiment of the present disclosure.
  • the communication system may include, but is not limited to, a network device, a terminal device, and a satellite.
  • the number and shape of the devices shown in FIG. Two or more network devices, two or more terminal devices.
  • the communication system shown in FIG. 1 includes a network device 11 , a terminal device 12 and a satellite 13 as an example.
  • the network device 11 in the embodiment of the present disclosure is an entity on the network side for transmitting or receiving signals.
  • the network device 11 may be an evolved base station (evolved NodeB, eNB), a transmission point (transmission reception point, TRP), a next generation base station (next generation NodeB, gNB) in an NR system, or a base station in other future mobile communication systems Or an access node in a wireless fidelity (wireless fidelity, WiFi) system, etc.
  • eNB evolved NodeB
  • TRP transmission reception point
  • gNB next generation base station
  • gNB next generation NodeB
  • gNB next generation NodeB
  • WiFi wireless fidelity
  • the embodiments of the present disclosure do not limit the specific technology and specific device form adopted by the network device.
  • the network device provided by the embodiment of the present disclosure may be composed of a centralized unit (central unit, CU) and a distributed unit (distributed unit, DU), wherein the CU may also be called a control unit (control unit), and the CU-DU
  • the structure of the network device such as the protocol layer of the base station, can be separated, and the functions of some protocol layers are placed in the centralized control of the CU, and the remaining part or all of the functions of the protocol layer are distributed in the DU, and the CU centrally controls the DU.
  • the satellite provided in the embodiment of the present disclosure may be a low-orbit satellite, or may also be a high-orbit satellite, which is not limited in the present disclosure.
  • the terminal device 12 in the embodiment of the present disclosure is an entity on the user side for receiving or transmitting signals, such as a mobile phone.
  • the terminal equipment may also be called terminal equipment (terminal), user equipment (user equipment, UE), mobile station (mobile station, MS), mobile terminal equipment (mobile terminal, MT) and so on.
  • the terminal device can be a car with communication functions, a smart car, a mobile phone, a wearable device, a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (augmented reality (AR) terminal equipment, wireless terminal equipment in industrial control (industrial control), wireless terminal equipment in self-driving (self-driving), wireless terminal equipment in remote medical surgery (remote medical surgery), smart grid ( Wireless terminal devices in smart grid, wireless terminal devices in transportation safety, wireless terminal devices in smart city, wireless terminal devices in smart home, etc.
  • the embodiments of the present disclosure do not limit the specific technology and specific device form adopted by the terminal device.
  • FIG. 2 is a schematic flowchart of a method for channel state feedback provided by an embodiment of the present disclosure, and the method is executed by a terminal device. As shown in Figure 2, the method may include but not limited to the following steps:
  • Step 21 Send predicted channel state information CSI to the network device based on the first feedback moment.
  • the first feedback time may be the feedback time indicated by the network device, or may also be the feedback time determined according to the agreement, or may also be the feedback time determined after negotiation between the terminal device and the network device, etc.
  • the present disclosure does not limit this.
  • the predicted CSI is the CSI predicted by the terminal device at a certain time in the future or for a period of time in the future.
  • the terminal device may determine the predicted channel state information CSI based on the channel measurement results in the first period before the first feedback moment.
  • the first time period may be a fixed or variable length time period pre-configured by the terminal device, or may be a time period determined by the terminal according to received indication information from the network device, or may also be a time period negotiated between the terminal device and the network device. After that, the determined time period is not limited in the present disclosure.
  • the predicted CSI can be sent to the network device in advance, so as to ensure that the CSI received by the network device is available as much as possible, so as to ensure reliable transmission of communication .
  • the terminal device can send predicted channel state information CSI to the network device based on the first feedback moment. Therefore, by sending the predicted CSI to the network device in advance, the situation that the CSI fed back by the terminal device is not available due to the transmission delay is avoided, thereby not only ensuring the validity and reliability of data transmission between the terminal device and the network device , while reducing waste of resources.
  • FIG. 3 is a schematic flowchart of a method for channel state feedback provided by an embodiment of the present disclosure, and the method is executed by a terminal device. As shown in Figure 3, the method may include but not limited to the following steps:
  • Step 31 Determine the first feedback time according to the service time of the serving satellite.
  • the service time of the serving satellite may be the moment, time period, or remaining service time when the serving satellite can provide effective services for the terminal device.
  • the terminal device determines the first feedback moment according to the service time of the serving satellite. Therefore, it is ensured that within the service time of the serving satellite, the predicted CSI can be sent to the network device through the serving satellite. It should be noted that there may be one or more first feedback moments, which is not limited in the present disclosure.
  • the terminal device may determine the service time of the serving satellite according to the ephemeris data corresponding to the serving satellite.
  • the ephemeris data of the serving satellite may include position and velocity data of the serving satellite. Based on the ephemeris data of the satellite, the terminal device can determine the position of the satellite at each time, and then determine the feedback time of the serving satellite based on the position of the satellite at each time.
  • the terminal device may also determine the service time of the serving satellite according to the second indication information.
  • the second indication information is information sent by the network device to the terminal device and used to indicate the service time of the serving satellite.
  • Step 32 Send predicted channel state information CSI to the network device based on the first feedback moment.
  • the terminal device can determine the first feedback time according to the service time of the serving satellite, and then send the predicted channel state information CSI to the network device based on the first feedback time. Therefore, by sending the predicted CSI to the network device in advance, the situation that the CSI fed back by the terminal device is not available due to the transmission delay is avoided, thereby not only ensuring the validity and reliability of data transmission between the terminal device and the network device , while reducing waste of resources.
  • FIG. 4 is a schematic flowchart of a method for channel state feedback provided by an embodiment of the present disclosure, and the method is executed by a terminal device. As shown in Figure 4, the method may include but not limited to the following steps:
  • Step 41 receiving first indication information.
  • the first indication information may be a radio resource control RRC message.
  • the radio resource control (Radio Resource Control, RRC) message is sent by the network device to the terminal device, and is used to indicate the first feedback moment.
  • the first indication information may also be a MAC control element CE.
  • the medium access control (Medium Access Control, MAC) control element (Control Element, CE) is sent by the network device to the terminal device, and is used to indicate the first feedback moment.
  • MAC Medium Access Control
  • the first indication information may also be received downlink control information DCI.
  • the downlink control information Downlink Control Information, DCI
  • DCI Downlink Control Information
  • the first indication information may include at least one of the following: CSI reporting times; CSI reporting period; CSI reporting time; and delay information.
  • Step 42 Determine a first feedback moment according to the first indication information.
  • the first feedback time may be determined according to the number of CSI reports indicated by the configuration information, the reporting period, the reporting time and/or the delay information.
  • the number of times of reporting may be the number of times that the terminal device needs to feed back the predicted CSI to the network device within a predefined time after receiving the first indication information.
  • the reporting period may be a period for the terminal device to send the predicted CSI to the network device.
  • the terminal device needs to send the predicted CSI to the network device every other reporting period.
  • the delay information may be the delay existing when the terminal device sends information to the network device, that is, the terminal device sends a message to the network device at time t1 , and the CSI at time t1 +k is fed back.
  • the delay information may be absolute delay information, or may be relative delay information.
  • the delay information indicated in the first indication information is k milliseconds, that is, when the terminal device sends information to the network device, the existing delay is k milliseconds.
  • the first indication information may also indicate that the delay information is: m milliseconds later than the reporting time, etc., which is not limited in the present disclosure.
  • the reporting time may be the time when the terminal device sends the predicted CSI to the network device.
  • the terminal device can determine that the first feedback time is t. That is, the terminal device needs to send the predicted CSI to the network device at time t, and the CSI at time t+k is fed back.
  • the terminal device may first receive the configuration information, and then determine the second instruction according to the receiving time of the trigger instruction and the number of reports indicated by the configuration information, the reporting period, the reporting time and/or the delay information. A feedback moment.
  • the trigger instruction is used to trigger the terminal device to report the predicted CSI. Therefore, the terminal device can determine the first feedback time according to the number of reports, the reporting period, the reporting time and/or the time delay information indicated by the configuration information at the time when the trigger instruction is received.
  • the trigger instruction may trigger one reporting moment, or may also trigger multiple reporting moments, which is not limited in the present disclosure.
  • the trigger instruction n indicates that three specified moments for reporting predicted CSI are triggered.
  • Step 43 Send the predicted channel state information CSI to the network device based on the first feedback moment.
  • the terminal device may first receive the first indication message, then determine the first feedback time according to the first indication information, and send the predicted channel state information CSI to the network device based on the first feedback time. Therefore, by sending the predicted CSI to the network device in advance, the situation that the CSI fed back by the terminal device is not available due to the transmission delay is avoided, thereby not only ensuring the validity and reliability of data transmission between the terminal device and the network device , while reducing waste of resources.
  • FIG. 5 is a schematic flowchart of a method for channel state feedback provided by an embodiment of the present disclosure, and the method is executed by a terminal device. As shown in Figure 5, the method may include but not limited to the following steps:
  • Step 51 receiving first indication information, where the first indication information is used to indicate a first feedback time t and delay information k.
  • t and k are both positive numbers.
  • Step 52 Determine the predicted CSI at time t+k according to the first indication information.
  • the terminal device may predict the CSI at time t+k according to the channel measurement results in the first period before time t.
  • the first time period may be a fixed or variable length time period pre-configured by the terminal device, or may be a first time period before the first feedback moment determined by the terminal according to received indication information from the network device.
  • Step 53 at time t, send the predicted CSI at time t+k to the network device.
  • the terminal device sends the predicted CSI at time t+k to the network device at time t, thus ensuring that the predicted CSI received by the network device at time t+k is available CSI, avoiding the This results in the fact that the CSI corresponding to time t sent by the terminal device is unavailable.
  • the terminal device can determine the predicted CSI at time t+k according to the delay information k indicated in the first indication information and the first feedback time t, and finally at At time t, the predicted CSI at time t+k is sent to the network device. Therefore, by sending the predicted CSI considering the delay information to the network device, the situation that the CSI fed back by the terminal device is not available due to the transmission delay is avoided, thereby not only ensuring the validity of data transmission between the terminal device and the network device and reliability, while reducing waste of resources.
  • FIG. 6 is a schematic flowchart of a method for channel state feedback provided by an embodiment of the present disclosure, and the method is executed by a terminal device. As shown in Figure 6, the method may include but not limited to the following steps:
  • Step 61 Receive first indication information, where the first indication information is used to indicate a first feedback time t and delay information k.
  • Step 62 Determine the predicted CSI from time t+k-m to time t+k according to the first indication information.
  • m may be the time length corresponding to the predicted CSI, and t, k, and m are all positive numbers.
  • the terminal device may use the average CSI measured from time t+k-m to time t as the predicted CSI from time t+k-m to time t+k.
  • Step 63 at time t, send the predicted CSI from time t+k-m to time t+k to the network device.
  • the terminal device sends the predicted CSI from time t+k-m to time t+k to the network device at time t, which avoids the situation that the CSI corresponding to time t sent by the terminal device is unavailable due to transmission delay .
  • step 62 and step 63 reference may be made to the descriptions of other embodiments of the present disclosure, which will not be repeated here.
  • the terminal device can first receive the first indication information, and then determine the predicted CSI from time t+k-m to time t+k according to the delay information k indicated by the first indication information and the first feedback time t, Finally, at time t, the predicted CSI from time t+k-m to time t+k is sent to the network device. Therefore, by sending the predicted CSI considering the delay information to the network device, the situation that the CSI fed back by the terminal device is not available due to the transmission delay is avoided, thereby not only ensuring the validity of data transmission between the terminal device and the network device and reliability, while reducing waste of resources.
  • FIG. 7 is a schematic flowchart of a method for channel state feedback provided by an embodiment of the present disclosure, and the method is executed by a network device. As shown in Figure 7, the method may include but not limited to the following steps:
  • Step 71 Based on the first feedback moment, receive predicted channel state information CSI sent by the terminal device.
  • the predicted CSI is the CSI predicted by the terminal device at a certain moment in the future or within a certain period of time in the future.
  • the network device may determine the first feedback moment according to the agreement.
  • the agreement stipulates that: the first feedback time is time t, then the terminal device will feed back the predicted CSI to the network device at time t, and the network device will receive the predicted CSI sent by the terminal device based on time t.
  • the network device can receive the predicted CSI sent by the network device in advance, so as to ensure that the CSI received by the network device is available as much as possible to ensure communication reliable transmission.
  • the network device receives the predicted channel state information CSI sent by the terminal device based on the first feedback moment. Therefore, by receiving the predicted CSI sent by the terminal device in advance, the situation that the CSI fed back by the terminal device is not available due to the transmission delay is avoided, thereby not only ensuring the validity and reliability of data transmission between the terminal device and the network device performance and reduce waste of resources.
  • FIG. 8 is a schematic flowchart of a method for channel state feedback provided by an embodiment of the present disclosure, and the method is executed by a network device. As shown in Figure 8, the method may include but not limited to the following steps:
  • Step 81 Send first indication information, where the first indication information is used to indicate a first feedback moment.
  • the first indication information may include at least one of the following: CSI reporting times; CSI reporting period; CSI reporting time; and delay information.
  • the first indication information may be a radio resource control RRC message.
  • the radio resource control (Radio Resource Control, RRC) message is sent by the network device to the terminal device, and is used to indicate the first feedback moment.
  • the first indication information may also be a MAC control element CE.
  • the medium access control (Medium Access Control, MAC) control element (Control Element, CE) is sent by the network device to the terminal device, and is used to indicate the first feedback moment.
  • MAC Medium Access Control
  • the first indication information may also be downlink control information DCI.
  • the downlink control information Downlink Control Information, DCI
  • DCI Downlink Control Information
  • Step 82 Based on the first feedback moment, receive the predicted channel state information CSI sent by the terminal device.
  • the network device may receive the predicted CSI at time t+k sent by the terminal device at the first feedback time t.
  • k is delay information, and both t and k are positive numbers.
  • the delay information k may be absolute delay information, or may be relative delay information.
  • the delay information indicated in the first indication information is k milliseconds, that is, when the terminal device sends information to the network device, the existing delay is k milliseconds.
  • the first indication information may also indicate that the delay information is: n milliseconds later than the reporting time, etc., which is not limited in the present disclosure.
  • the network device may also receive the predicted CSI from time t+k-m to time t+k sent by the terminal device at the first feedback time t.
  • m may be the time length corresponding to the predicted CSI, and t, k, and m are all positive numbers.
  • the predicted CSI from time t+k-m to time t+k may be: when m is greater than k, the average channel state information measured by the terminal device from time t+k-m to time t.
  • the network device may send the first indication information for indicating the first feedback moment to the terminal device, and then receive the predicted channel state information CSI sent by the terminal device based on the first feedback moment. Therefore, by receiving the predicted CSI sent by the terminal device in advance, the situation that the CSI fed back by the terminal device is not available due to the transmission delay is avoided, thereby not only ensuring the validity and reliability of data transmission between the terminal device and the network device performance and reduce waste of resources.
  • FIG. 9 is a schematic flowchart of a method for channel state feedback provided by an embodiment of the present disclosure, and the method is executed by a network device. As shown in Figure 9, the method may include but not limited to the following steps:
  • Step 91 according to the ephemeris data corresponding to the serving satellite, determine the service time of the serving satellite.
  • the service time of the serving satellite may be the moment, time period, or remaining service time when the serving satellite provides effective services for the terminal device.
  • the ephemeris data of the serving satellite may include position and velocity data of the serving satellite.
  • the network equipment can determine the position of the satellite at each time, and then determine the service time of the service satellite based on the position of the satellite at each time.
  • Step 92 determine the first feedback time according to the service time of the serving satellite.
  • the network device determines the first feedback moment according to the service time of the serving satellite. Therefore, it is ensured that within the service time of the serving satellite, the predicted CSI can be sent to the network device through the serving satellite.
  • first feedback moments there may be one or more first feedback moments, which is not limited in the present disclosure.
  • Step 93 sending second indication information, where the second indication information is used to indicate the service time of the serving satellite.
  • the network device may first send the second indication information to the terminal device, and then the terminal device determines the feedback information according to the service time of the serving satellite indicated by the second indication information. In this way, the terminal device uses the first feedback time of the network device to send the predicted CSI to the network device, further reducing waste of resources.
  • step 92 may be performed first, and then step 93 may be performed, or step 93 may be performed first, and then step 92 and so on, which are not limited in the present disclosure.
  • Step 94 Based on the first feedback moment, receive the predicted channel state information CSI sent by the terminal device.
  • step 94 For the specific content and implementation manner of step 94, reference may be made to the descriptions of other embodiments of the present disclosure, which will not be repeated here.
  • the network device can first determine the service time of the serving satellite according to the ephemeris data corresponding to the serving satellite, then determine the first feedback time according to the service time of the serving satellite, and then send a message indicating the service to the terminal device.
  • the second indication information of the service time of the satellite is finally based on the first feedback time, receiving the predicted channel state information CSI sent by the terminal device. Therefore, by receiving the predicted CSI sent by the terminal device in advance, the situation that the CSI fed back by the terminal device is not available due to the transmission delay is avoided, thereby not only ensuring the validity and reliability of data transmission between the terminal device and the network device performance and reduce waste of resources.
  • the methods provided in the embodiments of the present disclosure are introduced from the perspectives of network devices and terminal devices respectively.
  • the network device and the terminal device may include a hardware structure and a software module, and implement the above functions in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • Some of the above-mentioned functions may be implemented in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • FIG. 10 is a schematic structural diagram of a communication device 100 provided by an embodiment of the present disclosure.
  • the communication device 100 shown in FIG. 10 may include a processing module 1001 and a transceiver module 1002 .
  • the transceiver module 1002 may include a sending module and/or a receiving module, the sending module is used to realize the sending function, the receiving module is used to realize the receiving function, and the sending and receiving module 1002 can realize the sending function and/or the receiving function.
  • the communication device 100 may be a terminal device, may also be a device in the terminal device, and may also be a device that can be matched with the terminal device.
  • the communication device 100 on the side of the terminal device, the device includes:
  • a transceiver module configured to send predicted channel state information CSI to the network device based on the first feedback moment.
  • the processing module 1001 is configured to determine the first feedback moment according to the service time of the serving satellite;
  • the processing module 1001 is further configured to determine a first feedback moment according to the first indication information.
  • processing module 1001 is also specifically used for:
  • the service time of the serving satellite is determined according to the second indication information.
  • the first indication information includes delay information k
  • the transceiver module 1002 is specifically used for:
  • the predicted CSI at time t+k is sent to the network device.
  • the first indication information includes delay information k
  • the transceiver module is specifically used for:
  • the predicted CSI from time t+k-m to time t+k is sent to the network device.
  • the first indication information is configuration information
  • the processing module 1001 is specifically used for:
  • the first feedback time is determined according to the number of CSI reports indicated by the configuration information, the reporting period, the reporting time and/or the delay information.
  • the first instruction information is a trigger instruction
  • the processing module 1001 is specifically used for:
  • configuration information where the configuration information is used to indicate the number of times CSI is reported, the reporting period, the reporting time and/or the delay information
  • the first feedback time is determined according to the receiving time of the trigger instruction and the number of reports indicated by the configuration information, the reporting period, the reporting time and/or the delay information.
  • the transceiver module 1002 is also specifically used for:
  • processing module 1001 is also specifically used for:
  • Predicted CSI is determined based on channel measurement results in a first period before the first feedback moment.
  • the terminal device can send the predicted channel state information CSI to the network device based on the first feedback moment. Therefore, by sending the predicted CSI to the network device in advance, the situation that the CSI fed back by the terminal device is not available due to the transmission delay is avoided, thereby not only ensuring the validity and reliability of data transmission between the terminal device and the network device , while reducing waste of resources.
  • the communication device 100 may be a network device, a device in the network device, or a device that can be matched with the network device.
  • the communication device 100 on the network device side, the device includes:
  • the transceiving module 1002 is configured to receive the predicted channel state information CSI sent by the terminal device based on the first feedback moment.
  • the processing module 1001 is configured to determine the first feedback moment according to the service time of the serving satellite;
  • the processing module 1001 is configured to determine the first feedback moment according to the agreement.
  • the transceiver module 1002 is also specifically used for:
  • the first indication information includes delay information k
  • the transceiver module is specifically used for:
  • At the first feedback time t receive the predicted CSI from time t+k-m to time t+k sent by the terminal device;
  • m is the time length corresponding to the predicted CSI
  • t, k and m are positive numbers.
  • the first instruction information includes at least one of the following:
  • the transceiver module 1002 is specifically used for:
  • processing module 1001 is also specifically used for:
  • the service time of the service satellite is determined according to the ephemeris data corresponding to the service satellite.
  • the transceiver module 1002 is also specifically used for:
  • the network device receives the predicted channel state information CSI sent by the terminal device based on the first feedback moment. Therefore, by receiving the predicted CSI sent by the terminal device in advance, the situation that the CSI fed back by the terminal device is not available due to the transmission delay is avoided, thereby not only ensuring the validity and reliability of data transmission between the terminal device and the network device performance and reduce waste of resources.
  • FIG. 11 is a schematic structural diagram of another communication device 110 provided by an embodiment of the present disclosure.
  • the communication device 110 may be a network device, or a terminal device, or a chip, a chip system, or a processor that supports the network device to implement the above method, or a chip, a chip system, or a chip that supports the terminal device to implement the above method. processor etc.
  • the device can be used to implement the methods described in the above method embodiments, and for details, refer to the descriptions in the above method embodiments.
  • Communications device 110 may include one or more processors 1101 .
  • the processor 1101 may be a general-purpose processor or a special-purpose processor. For example, it can be a baseband processor or a central processing unit.
  • the baseband processor can be used to process communication protocols and communication data
  • the central processing unit can be used to control communication devices (such as base stations, baseband chips, terminal equipment, terminal equipment chips, DU or CU, etc.) and execute computer programs , to process data for computer programs.
  • the communication device 110 may further include one or more memories 1102, on which a computer program 1104 may be stored, and the processor 1101 executes the computer program 1104, so that the communication device 110 executes the method described in the foregoing method embodiments. method.
  • data may also be stored in the memory 1102 .
  • the communication device 110 and the memory 1102 can be set separately or integrated together.
  • the communication device 110 may further include a transceiver 1105 and an antenna 1106 .
  • the transceiver 1105 may be called a transceiver unit, a transceiver, or a transceiver circuit, etc., and is used to implement a transceiver function.
  • the transceiver 1105 may include a receiver and a transmitter, and the receiver may be called a receiver or a receiving circuit, etc., for realizing a receiving function; the transmitter may be called a transmitter, or a sending circuit, for realizing a sending function.
  • the communication device 110 may further include one or more interface circuits 1107 .
  • the interface circuit 1107 is used to receive code instructions and transmit them to the processor 1101 .
  • the processor 1101 runs the code instructions to enable the communication device 110 to execute the methods described in the foregoing method embodiments.
  • the communication device 110 is a terminal device: the processor 1101 is configured to execute step 31 in the figure; step 42 in FIG. 4 ; step 52 in FIG. 5 ; or step 62 in FIG. 6 .
  • Transceiver 1105 is used to execute step 21 among Fig. 2; Step 32 among Fig. 3; Step 41, step 43 among Fig. 4; Step 51, step 53 among Fig. 5; Or step 61, step 63 among Fig. 6 .
  • the communication device 110 is a network device: the processor 1101 is used to execute step 91 in FIG. 9; or step 92 in FIG. 9; the transceiver 1105 is used to execute step 71 in FIG. 7; step 81 and step 82 in FIG. 8 ; or steps 93 and 94 in FIG. 9 .
  • the processor 1101 may include a transceiver for implementing receiving and sending functions.
  • the transceiver may be a transceiver circuit, or an interface, or an interface circuit.
  • the transceiver circuits, interfaces or interface circuits for realizing the functions of receiving and sending can be separated or integrated together.
  • the above-mentioned transceiver circuit, interface or interface circuit may be used for reading and writing code/data, or the above-mentioned transceiver circuit, interface or interface circuit may be used for signal transmission or transmission.
  • the processor 1101 may store a computer program 1103 , and the computer program 1103 runs on the processor 1101 to enable the communication device 110 to execute the methods described in the foregoing method embodiments.
  • the computer program 1103 may be solidified in the processor 1101, and in this case, the processor 1101 may be implemented by hardware.
  • the communication device 110 may include a circuit, and the circuit may implement the function of sending or receiving or communicating in the foregoing method embodiments.
  • the processors and transceivers described in this disclosure can be implemented on integrated circuits (integrated circuits, ICs), analog ICs, radio frequency integrated circuits (RFICs), mixed signal ICs, application specific integrated circuits (ASICs), printed circuit boards ( printed circuit board, PCB), electronic equipment, etc.
  • the processor and transceiver can also be fabricated using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), nMetal-oxide-semiconductor (NMOS), P-type Metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (bipolar junction transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
  • CMOS complementary metal oxide semiconductor
  • NMOS nMetal-oxide-semiconductor
  • PMOS P-type Metal oxide semiconductor
  • BJT bipolar junction transistor
  • BiCMOS bipolar CMOS
  • SiGe silicon germanium
  • GaAs gallium arsenide
  • the communication device described in the above embodiments may be a network device or a terminal device, but the scope of the communication device described in the present disclosure is not limited thereto, and the structure of the communication device may not be limited by FIG. 11 .
  • a communication device may be a stand-alone device or may be part of a larger device.
  • the communication device may be:
  • a set of one or more ICs may also include storage components for storing data and computer programs;
  • ASIC such as modem (Modem);
  • the communication device may be a chip or a chip system
  • the chip shown in FIG. 12 includes a processor 1201 and an interface 1202 .
  • the number of processors 1201 may be one or more, and the number of interfaces 1202 may be more than one.
  • the interface 1202 is configured to execute step 41 in FIG. 4 ; step 51 in FIG. 5 ; or step 61 in FIG. 6 .
  • the interface 1202 is configured to execute step 71 in FIG. 7 ; step 82 in FIG. 8 ; or step 94 in FIG. 9 .
  • the chip further includes a memory 1203 for storing necessary computer programs and data.
  • the embodiment of the present disclosure also provides a communication system, the system includes the communication device as the terminal device and the communication device as the network device in the aforementioned embodiment of Figure 11, or the system includes the communication device as the terminal device in the aforementioned embodiment of Figure 12 devices and communication devices as network devices.
  • the present disclosure also provides a computer-readable storage medium on which instructions are stored, and when the instructions are executed by a computer, the functions of any one of the above method embodiments are realized.
  • the present disclosure also provides a computer program product, which implements the functions of any one of the above method embodiments when the computer program product is executed by a computer.
  • all or part of them may be implemented by software, hardware, firmware or any combination thereof.
  • software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product comprises one or more computer programs. When the computer program is loaded and executed on the computer, all or part of the processes or functions according to the embodiments of the present disclosure will be generated.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices.
  • the computer program can be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer program can be downloaded from a website, computer, server or data center Transmission to another website site, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrated with one or more available media.
  • the available medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disk (solid state disk, SSD)) etc.
  • a magnetic medium for example, a floppy disk, a hard disk, a magnetic tape
  • an optical medium for example, a high-density digital video disc (digital video disc, DVD)
  • a semiconductor medium for example, a solid state disk (solid state disk, SSD)
  • At least one in the present disclosure can also be described as one or more, and a plurality can be two, three, four or more, and the present disclosure is not limited.
  • the technical feature is distinguished by "first”, “second”, “third”, “A”, “B”, “C” and “D”, etc.
  • the technical features described in the “first”, “second”, “third”, “A”, “B”, “C” and “D” have no sequence or order of magnitude among the technical features described.
  • each table in the present disclosure may be configured or predefined.
  • the values of the information in each table are just examples, and may be configured as other values, which are not limited in the present disclosure.
  • the corresponding relationship shown in some rows may not be configured.
  • appropriate deformation adjustments can be made based on the above table, for example, splitting, merging, and so on.
  • the names of the parameters shown in the titles of the above tables may also adopt other names understandable by the communication device, and the values or representations of the parameters may also be other values or representations understandable by the communication device.
  • other data structures can also be used, for example, arrays, queues, containers, stacks, linear tables, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables can be used Wait.
  • Predefinition in the present disclosure can be understood as definition, predefinition, storage, prestorage, prenegotiation, preconfiguration, curing, or prefiring.

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Abstract

本公开实施例公开了一种信道状态反馈的方法及其装置,可应用于通信技术领域,其中,由终端设备执行的方法包括:基于第一反馈时刻,向网络设备发送预测信道状态信息CSI。由此,通过提前向网络设备发送预测CSI的方式,避免了由于传输时延,导致终端设备反馈的CSI不可用的情况,从而不仅保证了终端设备与网络设备间数据传输的有效性和可靠性,同时也减少了资源浪费。

Description

一种信道状态反馈的方法及其装置 技术领域
本公开涉及通信技术领域,尤其涉及一种信道状态反馈的方法及其装置。
背景技术
目前在陆地通信系统中,支持自适应调制与编码(AdaptiveModulation and coding,AMC)的功能,基站可以通过终端反馈的信道状态信息(Channel State Information,CSI)来灵活的调整传输参数。
但是在卫星通信系统中,终端设备要通过卫星与网络设备进行通信,从而导致终端设备与网络设备之间的传输距离较长,如果按照传统的机制进行CSI的反馈,会导致CSI的信息不可用的情况,造成资源的浪费。
发明内容
本公开实施例提供一种信道状态反馈的方法及其装置,可应用于通信技术领域中。
第一方面,本公开实施例提供一种信道状态反馈的方法,所述方法由终端设备执行,该方法包括:基于第一反馈时刻,向网络设备发送预测信道状态信息CSI。
第二方面,本公开实施例提供另一种信道状态反馈的方法,所述方法由网络设备执行,该方法包括:基于第一反馈时刻,接收终端设备发送的预测信道状态信息CSI。
第三方面,本公开实施例提供一种通信装置,该通信装置具有实现上述第一方面所述的方法中终端设备的部分或全部功能,比如通信装置的功能可具备本公开中的部分或全部实施例中的功能,也可以具备单独实施本公开中的任一个实施例的功能。所述功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的单元或模块。
第四方面,本公开实施例提供另一种通信装置,该通信装置具有实现上述第二方面所述的方法示例中网络设备的部分或全部功能,比如通信装置的功能可具备本公开中的部分或全部实施例中的功能,也可以具备单独实施本公开中的任一个实施例的功能。所述功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的单元或模块。
第五方面,本公开实施例提供一种通信装置,该通信装置包括处理器,当该处理器调用存储器中的计算机程序时,执行上述第一方面所述的方法。
第六方面,本公开实施例提供一种通信装置,该通信装置包括处理器,当该处理器调用存储器中的计算机程序时,执行上述第二方面所述的方法。
第七方面,本公开实施例提供一种通信装置,该通信装置包括处理器和存储器,该存储器中存储有计算机程序;当所述计算机程序被所述处理器执行时,使该通信装置执行上述第一方面所述的方法。
第八方面,本公开实施例提供一种通信装置,该通信装置包括处理器和存储器,该存储器中存储有计算机程序;当所述计算机程序被所述处理器执行时,使该通信装置执行上述第二方面所述的方法。
第九方面,本公开实施例提供一种通信装置,该装置包括处理器和接口电路,该接口电路用于接收代码指令并传输至该处理器,该处理器用于运行所述代码指令以使该装置执行上述第一方面所述的方法。
第十方面,本公开实施例提供一种通信装置,该装置包括处理器和接口电路,该接口电路用于接收代码指令并传输至该处理器,该处理器用于运行所述代码指令以使该装置执行上述第二方面所述的方法。
第十一方面,本公开实施例提供一种通信系统,该系统包括第三方面所述的通信装置以及第四方面所述的通信装置,或者,该系统包括第五方面所述的通信装置以及第六方面所述的通信装置,或者,该系统包括第七方面所述的通信装置以及第八方面所述的通信装置,或者,该系统包括第九方面所述的通信装置以及第十方面所述的通信装置。
第十二方面,本发明实施例提供一种计算机可读存储介质,用于储存为上述终端设备所用的指令,当所述指令被执行时,使上述第一方面所述的方法被实现。
第十三方面,本发明实施例提供一种计算机可读存储介质,用于储存为上述网络设备所用的指令,当所述指令被执行时,使上述第二方面所述的方法被实现。
第十四方面,本公开还提供一种包括计算机程序的计算机程序产品,当其在计算机上运行时,使得计算机执行上述第一方面所述的方法。
第十五方面,本公开还提供一种包括计算机程序的计算机程序产品,当其在计算机上运行时,使得计算机执行上述第二方面所述的方法。
第十六方面,本公开提供一种芯片系统,该芯片系统包括至少一个处理器和接口,用于支持终端设备实现第一方面所涉及的功能,例如,确定或处理上述方法中所涉及的数据和信息中的至少一种。在一种可能的设计中,所述芯片系统还包括存储器,所述存储器,用于保存终端设备必要的计算机程序和数据。该芯片系统,可以由芯片构成,也可以包括芯片和其他分立器件。
第十七方面,本公开提供一种芯片系统,该芯片系统包括至少一个处理器和接口,用于支持网络设备实现第二方面所涉及的功能,例如,确定或处理上述方法中所涉及的数据和信息中的至少一种。在一种可能的设计中,所述芯片系统还包括存储器,所述存储器,用于保存网络设备必要的计算机程序和数据。该芯片系统,可以由芯片构成,也可以包括芯片和其他分立器件。
第十八方面,本公开提供一种计算机程序,当其在计算机上运行时,使得 计算机执行上述第一方面所述的方法。
第十九方面,本公开提供一种计算机程序,当其在计算机上运行时,使得计算机执行上述第二方面所述的方法。
附图说明
为了更清楚地说明本公开实施例或背景技术中的技术方案,下面将对本公开实施例或背景技术中所需要使用的附图进行说明。
图1是本公开实施例提供的一种通信系统的架构示意图;
图2是本公开一实施例提供的一种信道状态反馈的方法的流程示意图;
图3是本公开另一实施例提供的一种信道状态反馈的方法的流程示意图;
图4是本公开另一实施例提供的一种信道状态反馈的方法的流程示意图;
图4a为本公开一实施例提供的一种触发指令的示意图;
图5是本公开另一实施例提供的一种信道状态反馈的方法的流程示意图;
图6是本公开另一实施例提供的一种信道状态反馈的方法的流程示意图;
图7是本公开另一实施例提供的一种信道状态反馈的方法的流程示意图;
图8是本公开另一实施例提供的一种信道状态反馈的方法的流程示意图;
图9是本公开另一实施例提供的一种信道状态反馈的方法的流程示意图;
图10是本公开一实施例的通信装置的结构示意图;
图11是本公开另一实施例的通信装置的结构示意图;
图12是本公开一实施例的芯片的结构示意图。
具体实施方式
为了便于理解,首先介绍本公开涉及的术语。
1、信道状态信息(Channel State Information,CSI)
CSI就是通信链路的信道属性。它描述了信号在每条传输路径上的衰弱因子,即信道增益矩阵H中每个元素的值,如信号散射(Scattering),环境衰弱(fading,multipath fading or shadowing fading),距离衰减(power decay of distance)等信息。CSI可以使通信系统适应当前的信道条件,在多天线系统中为高可靠性高速率的通信提供了保障。
为了更好的理解本公开实施例公开的一种信道状态反馈的方法,下面首先对本公开实施例适用的通信系统进行描述。
请参见图1,图1为本公开实施例提供的一种通信系统的架构示意图。该通信系统可包括但不限于一个网络设备、一个终端设备和一个卫星,图1所示的设备数量和形态仅用于举例并不构成对本公开实施例的限定,实际应用中可以包括两个或两个以上的网络设备,两个或两个以上的终端设备。图1所示的通信系统以包括一个网络设备11、一个终端设备12和一个卫星13为例。
需要说明的是,本公开实施例的技术方案可以应用于各种通信系统。例如:长期演进(long term evolution,LTE)系统、第五代(5th generation,5G) 移动通信系统、5G新空口(new radio,NR)系统,或者其他未来的新型移动通信系统等。本公开实施例中的网络设备11是网络侧的一种用于发射或接收信号的实体。例如,网络设备11可以为演进型基站(evolved NodeB,eNB)、传输点(transmission reception point,TRP)、NR系统中的下一代基站(next generation NodeB,gNB)、其他未来移动通信系统中的基站或无线保真(wireless fidelity,WiFi)系统中的接入节点等。本公开的实施例对网络设备所采用的具体技术和具体设备形态不做限定。本公开实施例提供的网络设备可以是由集中单元(central unit,CU)与分布式单元(distributed unit,DU)组成的,其中,CU也可以称为控制单元(control unit),采用CU-DU的结构可以将网络设备,例如基站的协议层拆分开,部分协议层的功能放在CU集中控制,剩下部分或全部协议层的功能分布在DU中,由CU集中控制DU。本公开实施例提供的卫星,可以为低轨道卫星,或者,还可以为高轨道卫星,本公开对此不做限定。
本公开实施例中的终端设备12是用户侧的一种用于接收或发射信号的实体,如手机。终端设备也可以称为终端设备(terminal)、用户设备(user equipment,UE)、移动台(mobile station,MS)、移动终端设备(mobile terminal,MT)等。终端设备可以是具备通信功能的汽车、智能汽车、手机(mobile phone)、穿戴式设备、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality,VR)终端设备、增强现实(augmented reality,AR)终端设备、工业控制(industrial control)中的无线终端设备、无人驾驶(self-driving)中的无线终端设备、远程手术(remote medical surgery)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备、智慧家庭(smart home)中的无线终端设备等等。本公开的实施例对终端设备所采用的具体技术和具体设备形态不做限定。
可以理解的是,本公开实施例描述的通信系统是为了更加清楚的说明本公开实施例的技术方案,并不构成对于本公开实施例提供的技术方案的限定,本领域普通技术人员可知,随着系统架构的演变和新业务场景的出现,本公开实施例提供的技术方案对于类似的技术问题,同样适用。
下面结合附图对本公开所提供的信道状态反馈的方法及其装置进行详细地介绍。
请参见图2,图2是本公开实施例提供的一种信道状态反馈的方法的流程示意图,该方法由终端设备执行。如图2所示,该方法可以包括但不限于如下步骤:
步骤21,基于第一反馈时刻,向网络设备发送预测信道状态信息CSI。
可选的,第一反馈时刻,可以为网络设备指示的反馈时刻,或者,也可以为根据协议约定确定的反馈时刻,或者,还可以是终端设备和网络设备协商后确定的反馈时刻等等,本公开对此不做限定。
其中,预测CSI,为终端设备预测的未来某个时刻或未来一段时间的CSI。
可选的,终端设备可以基于第一反馈时刻之前的第一时段内的信道测量结果,确定预测信道状态信息CSI。
其中,第一时段可以为终端设备预先配置的固定或是可变长度的时间段,也可以为终端根据接收的网络设备的指示信息确定的时间段,或者,还可以为终端设备与网络设备协商后,确定的时间段,本公开对此不做限定。
可以理解的是,本公开中,考虑到卫星通信系统中的传输距离较长的问题,可以提前向网络设备发送预测CSI,从而以尽量保证网络设备收到的CSI可用,以保证通信的可靠传输。
通过实施本公开实施例,终端设备可以基于第一反馈时刻,向网络设备发送预测信道状态信息CSI。由此,通过提前向网络设备发送预测CSI的方式,避免了由于传输时延,导致终端设备反馈的CSI不可用的情况,从而不仅保证了终端设备与网络设备间数据传输的有效性和可靠性,同时也减少了资源浪费。
请参见图3,图3是本公开实施例提供的一种信道状态反馈的方法的流程示意图,该方法由终端设备执行。如图3所示,该方法可以包括但不限于如下步骤:
步骤31,根据服务卫星的服务时间,确定第一反馈时刻。
可选的,服务卫星的服务时间,可以为服务卫星可以为终端设备提供有效服务的时刻、时间段、或者剩余服务时间等等。
本公开中,终端设备根据服务卫星的服务时间,确定第一反馈时刻。从而保证在服务卫星的服务时间内,预测CSI可以通过该服务卫星发送至网络设备。需要说明的是,第一反馈时刻,可以为一个,也可以为多个,本公开对此不做限定。
可选的,终端设备可以根据服务卫星对应的星历数据,确定服务卫星的服务时间。
其中,服务卫星的星历数据,可以包括服务卫星的位置和速度的数据。终端设备根据卫星的星历数据,即可确定各个时刻,卫星所在的位置,进而即可基于各个时刻卫星所在的位置,确定服务卫星的反馈时刻。
可选的,终端设备也可以根据第二指示信息,确定服务卫星的服务时间。
其中,第二指示信息为网络设备向终端设备发送的,用于指示服务卫星的服务时间的信息。
步骤32,基于第一反馈时刻,向网络设备发送预测信道状态信息CSI。
需要说明的是,步骤32的具体内容及实现方式,可以参照本公开其他各实施例的描述,此处不再赘述。
通过实施本公开实施例,终端设备可以根据服务卫星的服务时间,确定第一反馈时刻,之后基于第一反馈时刻,向网络设备发送预测信道状态信息CSI。由此,通过提前向网络设备发送预测CSI的方式,避免了由于传输时延,导致 终端设备反馈的CSI不可用的情况,从而不仅保证了终端设备与网络设备间数据传输的有效性和可靠性,同时也减少了资源浪费。
请参见图4,图4是本公开实施例提供的一种信道状态反馈的方法的流程示意图,该方法由终端设备执行。如图4所示,该方法可以包括但不限于如下步骤:
步骤41,接收第一指示信息。
可选的,第一指示信息可以为无线资源控制RRC消息。其中,无线资源控制(Radio Resource Control,RRC)消息为网络设备向终端设备发送的,用于指示第一反馈时刻。
可选的,第一指示信息还可以为媒体接入控制MAC控制单元CE。其中,媒体接入控制(Medium Access Control,MAC)控制单元(Control Element,CE)中为网络设备向终端设备发送的,用于指示第一反馈时刻。
可选的,第一指示信息还可以为收下行控制信息DCI。其中,下行控制信息(DownlinkControl Information,DCI)为网络设备向终端设备发送的,用于指示第一反馈时刻。
其中,第一指示信息中可以包含以下至少一项:CSI的上报次数;CSI的上报周期;CSI的上报时刻;以及,时延信息。
步骤42,根据第一指示信息,确定第一反馈时刻。
可选的,若第一指示信息为配置信息,则可以根据配置信息指示的CSI的上报次数、上报周期、上报时刻和/或时延信息,确定第一反馈时刻。
可选的,上报次数可以为终端设备在接收到第一指示信息后,需要在预定义的时间内向网络设备反馈预测CSI的次数。
其中,上报周期可以为终端设备向网络设备发送预测CSI的周期。终端设备需要每隔一个上报周期,向网络设备发送一次预测CSI。
其中,时延信息可以为终端设备向网络设备发送信息时存在的时延,即终端设备在t 1时刻向网络设备发送消息,反馈的是第t 1+k时刻的CSI。该时延信息,可以为绝对的时延信息,或者,也可以为相对的时延信息。比如,第一指示信息中指示时延信息为k毫秒,即终端设备向网络设备发送信息时,存在的时延为k毫秒。或者,第一指示信息,还可以指示时延信息为:比上报时刻滞后m毫秒等等,本公开对此不做限定。
其中,上报时刻可以为终端设备向网络设备发送预测CSI的时刻。
比如,第一指示信息指示:时延信息为k,上报时刻为t,则终端设备即可确定第一反馈时刻为t。即终端设备要在t时刻,向网络设备发送预测CSI,反馈的是第t+k时刻的CSI。
可选的,第一指示信息为触发指令,则终端设备可以先接收配置信息,之后根据触发指令的接收时刻及配置信息指示的上报次数、上报周期、上报时刻和/或时延信息,确定第一反馈时刻。
其中,触发指令用于触发终端设备上报预测CSI。从而终端设备即可在接收到触发指令的时刻,根据配置信息指示的上报次数、上报周期、上报时刻和/或时延信息,确定第一反馈时刻。
可选的,触发指令,可以触发一个上报时刻,或者,也可以触发多个上报时刻,本公开对此不做限定。
举例来说,如图4a所示,触发指令n,指示触发了3个上报预测CSI的指定时刻。
步骤43,基于第一反馈时刻,向网络设备发送预测信道状态信息CSI。
需要说明的是,步骤43的具体内容及实现方式,可以参照本公开其他各实施例的描述,此处不再赘述。
通过实施本公开实施例,终端设备可以先接收第一指示消息,之后根据第一指示信息,确定第一反馈时刻,基于第一反馈时刻,向网络设备发送预测信道状态信息CSI。由此,通过提前向网络设备发送预测CSI的方式,避免了由于传输时延,导致终端设备反馈的CSI不可用的情况,从而不仅保证了终端设备与网络设备间数据传输的有效性和可靠性,同时也减少了资源浪费。
请参见图5,图5是本公开实施例提供的一种信道状态反馈的方法的流程示意图,该方法由终端设备执行。如图5所示,该方法可以包括但不限于如下步骤:
步骤51,接收第一指示信息,其中,第一指示信息用于指示第一反馈时刻t和时延信息k。
其中,t和k均为正数。
需要说明的是,步骤51的具体内容及实现方式,可以参照本公开其他各实施例的描述,此处不再赘述。
步骤52,根据第一指示信息,确定t+k时刻的预测CSI。
可选的,终端设备可以根据t时刻之前第一时段内的信道测量结果,预测t+k时刻的CSI。
其中,第一时段可以为终端设备预先配置的固定或是可变长度的时间段,也可以为终端根据接收的网络设备的指示信息,确定第一反馈时刻之前的第一时段。
步骤53,在t时刻,向网络设备发送t+k时刻的预测CSI。
可以理解的是,终端设备在t时刻,向网络设备发送t+k时刻的预测CSI,从而保证了网络设备在t+k时刻收到的预测CSI为可用的CSI,避免了由于传输时延,导致终端设备发送的t时刻对应的CSI不可用的情况。
通过实施本公开实施例,终端设备在接收到第一指示信息之后,即可根据第一指示信息中指示的时延信息k和第一反馈时刻t,确定t+k时刻的预测CSI,最后在t时刻,向网络设备发送t+k时刻的预测CSI。由此,通过向网络设备发送考虑了时延信息的预测CSI,避免了由于传输时延,导致终端设备反馈的 CSI不可用的情况,从而不仅保证了终端设备与网络设备间数据传输的有效性和可靠性,同时也减少了资源浪费。
请参见图6,图6是本公开实施例提供的一种信道状态反馈的方法的流程示意图,该方法由终端设备执行。如图6所示,该方法可以包括但不限于如下步骤:
步骤61,接收第一指示信息,其中,第一指示信息用于指示第一反馈时刻t和时延信息k。
步骤62,根据第一指示信息,确定t+k-m时刻至t+k时刻的预测CSI。
其中,m可以为预测CSI对应的时间长度,t、k和m均为正数。
可选的,若m为大于k的值,则终端设备可以将t+k-m时刻至t时刻内测量的平均CSI,作为t+k-m时刻至t+k时刻的预测CSI。
步骤63,在t时刻,向网络设备发送t+k-m时刻至t+k时刻的预测CSI。
可以理解的是,终端设备在t时刻,向网络设备发送t+k-m时刻至t+k时刻的预测CSI,则避免了由于传输时延,导致终端设备发送的t时刻对应的CSI不可用的情况。
需要说明的是,步骤62及步骤63的具体内容及实现方式,可以参照本公开其他各实施例的描述,此处不再赘述。
通过实施本公开实施例,终端设备可以先接收第一指示信息,之后根据第一指示信息指示的时延信息k和第一反馈时刻t,确定t+k-m时刻至t+k时刻的预测CSI,最后在t时刻,向网络设备发送t+k-m时刻至t+k时刻的预测CSI。由此,通过向网络设备发送考虑了时延信息的预测CSI,避免了由于传输时延,导致终端设备反馈的CSI不可用的情况,从而不仅保证了终端设备与网络设备间数据传输的有效性和可靠性,同时也减少了资源浪费。
请参见图7,图7是本公开实施例提供的一种信道状态反馈的方法的流程示意图,该方法由网络设备执行。如图7所示,该方法可以包括但不限于如下步骤:
步骤71,基于第一反馈时刻,接收终端设备发送的预测信道状态信息CSI。
其中,预测CSI为终端设备预测的未来某个时刻或未来一段时间内CSI。
可选的,网络设备可以根据协议约定,确定第一反馈时刻。
比如,协议约定:第一反馈时刻为t时刻,则终端设备将在t时刻向网络设备反馈预测CSI,网络设备将会基于t时刻,接收终端设备发送的预测CSI。
可以理解的是,本公开中,考虑到卫星通信系统中的传输距离较长的问题,网络设备可以提前接收网络设备发送的预测CSI,从而以尽量保证网络设备收到的CSI可用,以保证通信的可靠传输。
通过实施本公开实施例,网络设备基于第一反馈时刻,接收终端设备发送的预测信道状态信息CSI。由此,通过提前接收终端设备发送的预测CSI的方 式,避免了由于传输时延,导致终端设备反馈的CSI不可用的情况,从而不仅保证了终端设备与网络设备间数据传输的有效性和可靠性,同时也减少了资源浪费。
请参见图8,图8是本公开实施例提供的一种信道状态反馈的方法的流程示意图,该方法由网络设备执行。如图8所示,该方法可以包括但不限于如下步骤:
步骤81,发送第一指示信息,其中,第一指示信息用于指示第一反馈时刻。
可选的,第一指示信息中可以包含以下至少一项:CSI的上报次数;CSI的上报周期;CSI的上报时刻;以及,时延信息。
可选的,第一指示信息可以为无线资源控制RRC消息。其中,无线资源控制(Radio Resource Control,RRC)消息为网络设备向终端设备发送的,用于指示第一反馈时刻。
可选的,第一指示信息还可以为媒体接入控制MAC控制单元CE。其中,媒体接入控制(Medium Access Control,MAC)控制单元(Control Element,CE)中为网络设备向终端设备发送的,用于指示第一反馈时刻。
可选的,第一指示信息还可以为下行控制信息DCI。其中,下行控制信息(DownlinkControl Information,DCI)为网络设备向终端设备发送的,用于指示第一反馈时刻。
步骤82,基于第一反馈时刻,接收终端设备发送的预测信道状态信息CSI。
可选的,网络设备可以在第一反馈时刻t,接收终端设备发送的t+k时刻的预测CSI。
其中,k为时延信息,t和k均为正数。
可选的,时延信息k,可以为绝对的时延信息,或者,也可以为相对的时延信息。比如,第一指示信息中指示时延信息为k毫秒,即终端设备向网络设备发送信息时,存在的时延为k毫秒。或者,第一指示信息,还可以指示时延信息为:比上报时刻滞后n毫秒等等,本公开对此不做限定。
可选的,网络设备还可以在第一反馈时刻t,接收终端设备发送的t+k-m时刻至t+k时刻的预测CSI。
其中,m可以为预测CSI对应的时间长度,t、k和m均为正数。
其中,t+k-m时刻至t+k时刻的预测CSI可以为:在m为大于k的值的情况下,终端设备测量的t+k-m时刻至t时刻内测量的平均信道状态信息。
通过实施本公开实施例,网络设备可以向终端设备发送用于指示第一反馈时刻的第一指示信息,之后基于第一反馈时刻,接收终端设备发送的预测信道状态信息CSI。由此,通过提前接收终端设备发送的预测CSI的方式,避免了由于传输时延,导致终端设备反馈的CSI不可用的情况,从而不仅保证了终端设备与网络设备间数据传输的有效性和可靠性,同时也减少了资源浪费。
请参见图9,图9是本公开实施例提供的一种信道状态反馈的方法的流程示意图,该方法由网络设备执行。如图9所示,该方法可以包括但不限于如下步骤:
步骤91,根据服务卫星对应的星历数据,确定服务卫星的服务时间。
可选的,服务卫星的服务时间,可以为服务卫星为终端设备提供有效服务的时刻、时间段、或者剩余服务时间等等。
其中,服务卫星的星历数据,可以包括服务卫星的位置和速度的数据。网络设备根据卫星的星历数据,即可确定各个时刻,卫星所在的位置,进而即可基于各个时刻卫星所在的位置,确定服务卫星的服务时间。
步骤92,根据服务卫星的服务时间,确定第一反馈时刻。
本公开中,网络设备根据服务卫星的服务时间,确定第一反馈时刻。从而保证在服务卫星的服务时间内,预测CSI可以通过该服务卫星发送至网络设备。
需要说明的是,第一反馈时刻,可以为一个,也可以为多个,本公开对此不做限定。
步骤93,发送第二指示信息,其中,第二指示信息用于指示服务卫星的服务时间。
其中,网络设备可以先向终端设备发送第二指示信息,之后终端设备根据第二指示信息指示的服务卫星的服务时间确定反馈信息。由此,使终端设备采用网络设备第一反馈时刻,向网络设备发送预测CSI,进一步减少了资源浪费。
需要说明的是,可以先执行步骤92,再执行步骤93,或者也可以先执行步骤93,再执行步骤92等等,本公开对此不做限定。
步骤94,基于第一反馈时刻,接收终端设备发送的预测信道状态信息CSI。
需要说明的是,步骤94的具体内容及实现方式,可以参照本公开其他各实施例的描述,此处不再赘述。
通过实施本公开实施例,网络设备可以先根据服务卫星对应的星历数据,确定服务卫星的服务时间,之后根据服务卫星的服务时间,确定第一反馈时刻,之后向终端设备发送用于指示服务卫星的服务时间的第二指示信息,最后基于第一反馈时刻,接收终端设备发送的预测信道状态信息CSI。由此,通过提前接收终端设备发送的预测CSI的方式,避免了由于传输时延,导致终端设备反馈的CSI不可用的情况,从而不仅保证了终端设备与网络设备间数据传输的有效性和可靠性,同时也减少了资源浪费。
上述本公开提供的实施例中,分别从网络设备、终端设备的角度对本公开实施例提供的方法进行了介绍。为了实现上述本公开实施例提供的方法中的各功能,网络设备和终端设备可以包括硬件结构、软件模块,以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个 功能可以以硬件结构、软件模块、或者硬件结构加软件模块的方式来执行。
请参见图10,为本公开实施例提供的一种通信装置100的结构示意图。图10所示的通信装置100可包括处理模块1001和收发模块1002。
收发模块1002可包括发送模块和/或接收模块,发送模块用于实现发送功能,接收模块用于实现接收功能,收发模块1002可以实现发送功能和/或接收功能。
可以理解的是,通信装置100可以是终端设备,也可以是终端设备中的装置,还可以是能够与终端设备匹配使用的装置。
通信装置100,在终端设备侧,该装置,包括:
收发模块,用于基于第一反馈时刻,向网络设备发送预测信道状态信息CSI。
可选的,还包括:
处理模块1001,用于根据服务卫星的服务时间,确定第一反馈时刻;
或者,
处理模块1001,还用于根据第一指示信息,确定第一反馈时刻。
可选的,处理模块1001,还具体用于:
根据服务卫星对应的星历数据,确定服务卫星的服务时间;
或者,
根据第二指示信息,确定服务卫星的服务时间。
可选的,第一指示信息中包括时延信息k,收发模块1002,具体用于:
确定t+k时刻的预测CSI,其中,t为第一反馈时刻,其中,t和k为正数;
在t时刻,向网络设备发送t+k时刻的预测CSI。
可选的,第一指示信息中包括时延信息k,收发模块,具体用于:
确定t+k-m时刻至t+k时刻的预测CSI,其中,t为第一反馈时刻,其中,m为所述预测CSI对应的时间长度,t、k和m为正数;
在t时刻,向网络设备发送t+k-m时刻至t+k时刻的预测CSI。
可选的,第一指示信息为配置信息,处理模块1001,具体用于:
根据配置信息指示的CSI的上报次数、上报周期、上报时刻和/或时延信息,确定第一反馈时刻。
可选的,第一指示信息为触发指令,处理模块1001,具体用于:
接收配置信息,其中,配置信息用于指示CSI的上报次数、上报周期、上报时刻和/或时延信息;
根据触发指令的接收时刻及配置信息指示的上报次数、上报周期、上报时刻和/或时延信息,确定第一反馈时刻。
可选的,收发模块1002,还具体用于:
接收无线资源控制RRC消息,其中,RRC消息中包含第一指示信息;
或者,
接收媒体接入控制MAC控制单元CE,其中,MAC CE中包含第一指示信息;
或者,
接收下行控制信息DCI,其中,DCI中包含第一指示信息。
可选的,处理模块1001,还具体用于:
基于第一反馈时刻之前的第一时段内的信道测量结果,确定预测的CSI。
本公开提供的通信装置,终端设备可以基于第一反馈时刻,向网络设备发送预测信道状态信息CSI。由此,通过提前向网络设备发送预测CSI的方式,避免了由于传输时延,导致终端设备反馈的CSI不可用的情况,从而不仅保证了终端设备与网络设备间数据传输的有效性和可靠性,同时也减少了资源浪费。
可以理解的是,通信装置100可以是网络设备,也可以是网络设备中的装置,还可以是能够与网络设备匹配使用的装置。
通信装置100,在网络设备侧,该装置,包括:
收发模块1002,用于基于第一反馈时刻,接收终端设备发送的预测信道状态信息CSI。
可选的,还包括:
处理模块1001,用于根据服务卫星的服务时间,确定第一反馈时刻;
或者,
处理模块1001,用于根据协议约定,确定第一反馈时刻。
可选的,收发模块1002,还具体用于:
发送第一指示信息,其中,第一指示信息用于指示第一反馈时刻。
可选的,第一指示信息中包括时延信息k,收发模块,具体用于:
在第一反馈时刻t,接收终端设备发送的t+k时刻的预测CSI;
或者,
在第一反馈时刻t,接收终端设备发送的t+k-m时刻至t+k时刻的预测CSI;
其中,m为所述预测CSI对应的时间长度,t、k和m为正数。
可选的,第一指示信息中包含以下至少一项:
CSI的上报次数;
CSI的上报周期;
CSI的上报时刻;以及,
时延信息。
可选的,收发模块1002,具体用于:
发送无线资源控制RRC消息,其中,RRC消息中包含第一指示信息;
或者,
发送媒体接入控制MAC控制单元CE,其中,MAC CE中包含第一指示信息;
或者,
发送下行控制信息DCI,其中,DCI中包含第一指示信息。
可选的,处理模块1001,还具体用于:
根据服务卫星对应的星历数据,确定服务卫星的服务时间。
可选的,收发模块1002,还具体用于:
发送第二指示信息,其中,第二指示信息用于指示服务卫星的服务时间。
本公开提供的通信装置,网络设备基于第一反馈时刻,接收终端设备发送的预测信道状态信息CSI。由此,通过提前接收终端设备发送的预测CSI的方式,避免了由于传输时延,导致终端设备反馈的CSI不可用的情况,从而不仅保证了终端设备与网络设备间数据传输的有效性和可靠性,同时也减少了资源浪费。
请参见图11,图11是本公开实施例提供的另一种通信装置110的结构示意图。通信装置110可以是网络设备,也可以是终端设备,也可以是支持网络设备实现上述方法的芯片、芯片系统、或处理器等,还可以是支持终端设备实现上述方法的芯片、芯片系统、或处理器等。该装置可用于实现上述方法实施例中描述的方法,具体可以参见上述方法实施例中的说明。
通信装置110可以包括一个或多个处理器1101。处理器1101可以是通用处理器或者专用处理器等。例如可以是基带处理器或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理,中央处理器可以用于对通信装置(如,基站、基带芯片,终端设备、终端设备芯片,DU或CU等)进行控制,执行计算机程序,处理计算机程序的数据。
可选的,通信装置110中还可以包括一个或多个存储器1102,其上可以存有计算机程序1104,处理器1101执行所述计算机程序1104,以使得通信装置110执行上述方法实施例中描述的方法。可选的,所述存储器1102中还可以存储有数据。通信装置110和存储器1102可以单独设置,也可以集成在一起。
可选的,通信装置110还可以包括收发器1105、天线1106。收发器1105可以称为收发单元、收发机、或收发电路等,用于实现收发功能。收发器1105可以包括接收器和发送器,接收器可以称为接收机或接收电路等,用于实现接收功能;发送器可以称为发送机或发送电路等,用于实现发送功能。
可选的,通信装置110中还可以包括一个或多个接口电路1107。接口电路1107用于接收代码指令并传输至处理器1101。处理器1101运行所述代码指令以使通信装置110执行上述方法实施例中描述的方法。
通信装置110为终端设备:处理器1101用于执行图中的步骤31;图4中的步骤42;图5中的步骤52;或图6中的步骤62。收发器1105用于执行图2中的步骤21;图3中的步骤32;图4中的步骤41、步骤43;图5中的步骤51、步骤53;或图6中的步骤61、步骤63。
通信装置110为网络设备:处理器1101用于执行图9中的步骤91;或图9中的步骤92;收发器1105用于执行图7中的步骤71;图8中的步骤81、步骤82;或图9中的步骤93、步骤94。
在一种实现方式中,处理器1101中可以包括用于实现接收和发送功能的 收发器。例如该收发器可以是收发电路,或者是接口,或者是接口电路。用于实现接收和发送功能的收发电路、接口或接口电路可以是分开的,也可以集成在一起。上述收发电路、接口或接口电路可以用于代码/数据的读写,或者,上述收发电路、接口或接口电路可以用于信号的传输或传递。
在一种实现方式中,处理器1101可以存有计算机程序1103,计算机程序1103在处理器1101上运行,可使得通信装置110执行上述方法实施例中描述的方法。计算机程序1103可能固化在处理器1101中,该种情况下,处理器1101可能由硬件实现。
在一种实现方式中,通信装置110可以包括电路,所述电路可以实现前述方法实施例中发送或接收或者通信的功能。本公开中描述的处理器和收发器可实现在集成电路(integrated circuit,IC)、模拟IC、射频集成电路RFIC、混合信号IC、专用集成电路(application specific integrated circuit,ASIC)、印刷电路板(printed circuit board,PCB)、电子设备等上。该处理器和收发器也可以用各种IC工艺技术来制造,例如互补金属氧化物半导体(complementary metal oxide semiconductor,CMOS)、N型金属氧化物半导体(nMetal-oxide-semiconductor,NMOS)、P型金属氧化物半导体(positive channel metal oxide semiconductor,PMOS)、双极结型晶体管(bipolar junction transistor,BJT)、双极CMOS(BiCMOS)、硅锗(SiGe)、砷化镓(GaAs)等。
以上实施例描述中的通信装置可以是网络设备或者终端设备,但本公开中描述的通信装置的范围并不限于此,而且通信装置的结构可以不受图11的限制。通信装置可以是独立的设备或者可以是较大设备的一部分。例如所述通信装置可以是:
(1)独立的集成电路IC,或芯片,或,芯片系统或子系统;
(2)具有一个或多个IC的集合,可选的,该IC集合也可以包括用于存储数据,计算机程序的存储部件;
(3)ASIC,例如调制解调器(Modem);
(4)可嵌入在其他设备内的模块;
(5)接收机、终端设备、智能终端设备、蜂窝电话、无线设备、手持机、移动单元、车载设备、网络设备、云设备、人工智能设备等等;
(6)其他等等。
对于通信装置可以是芯片或芯片系统的情况,可参见图12所示的芯片的结构示意图。图12所示的芯片包括处理器1201和接口1202。其中,处理器1201的数量可以是一个或多个,接口1202的数量可以是多个。
对于芯片用于实现本公开实施例中终端设备的功能的情况:
接口1202,用于执行图4中的步骤41;图5中的步骤51;或图6中的步骤61。
对于芯片用于实现本公开实施例中网络设备的功能的情况:
接口1202,用于执行执行图7中的步骤71;图8中的步骤82;或图9中的步骤94。
可选的,芯片还包括存储器1203,存储器1203用于存储必要的计算机程序和数据。
本领域技术人员还可以了解到本公开实施例列出的各种说明性逻辑块(illustrative logical block)和步骤(step)可以通过电子硬件、电脑软件,或两者的结合进行实现。这样的功能是通过硬件还是软件来实现取决于特定的应用和整个系统的设计要求。本领域技术人员可以对于每种特定的应用,可以使用各种方法实现所述的功能,但这种实现不应被理解为超出本公开实施例保护的范围。
本公开实施例还提供一种通信系统,该系统包括前述图11实施例中作为终端设备的通信装置和作为网络设备的通信装置,或者,该系统包括前述图12实施例中作为终端设备的通信装置和作为网络设备的通信装置。
本公开还提供一种计算机可读存储介质,其上存储有指令,该指令被计算机执行时实现上述任一方法实施例的功能。
本公开还提供一种计算机程序产品,该计算机程序产品被计算机执行时实现上述任一方法实施例的功能。
在上述实施例中,可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时,可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机程序。在计算机上加载和执行所述计算机程序时,全部或部分地产生按照本公开实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机程序可以存储在计算机可读存储介质中,或者从一个计算机可读存储介质向另一个计算机可读存储介质传输,例如,所述计算机程序可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line,DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如,软盘、硬盘、磁带)、光介质(例如,高密度数字视频光盘(digital video disc,DVD))、或者半导体介质(例如,固态硬盘(solid state disk,SSD))等。
本领域普通技术人员可以理解:本公开中涉及的第一、第二等各种数字编号仅为描述方便进行的区分,并不用来限制本公开实施例的范围,也表示先后顺序。
本公开中的至少一个还可以描述为一个或多个,多个可以是两个、三个、四个或者更多个,本公开不做限制。在本公开实施例中,对于一种技术特征,通过“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”等区分该 种技术特征中的技术特征,该“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”描述的技术特征间无先后顺序或者大小顺序。
本公开中各表所示的对应关系可以被配置,也可以是预定义的。各表中的信息的取值仅仅是举例,可以配置为其他值,本公开并不限定。在配置信息与各参数的对应关系时,并不一定要求必须配置各表中示意出的所有对应关系。例如,本公开中的表格中,某些行示出的对应关系也可以不配置。又例如,可以基于上述表格做适当的变形调整,例如,拆分,合并等等。上述各表中标题示出参数的名称也可以采用通信装置可理解的其他名称,其参数的取值或表示方式也可以通信装置可理解的其他取值或表示方式。上述各表在实现时,也可以采用其他的数据结构,例如可以采用数组、队列、容器、栈、线性表、指针、链表、树、图、结构体、类、堆、散列表或哈希表等。
本公开中的预定义可以理解为定义、预先定义、存储、预存储、预协商、预配置、固化、或预烧制。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本公开的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
以上所述,仅为本公开的具体实施方式,但本公开的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本公开揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本公开的保护范围之内。因此,本公开的保护范围应以所述权利要求的保护范围为准。

Claims (40)

  1. 一种信道状态反馈的方法,其特征在于,所述方法由终端设备执行,所述方法包括:
    基于第一反馈时刻,向网络设备发送预测信道状态信息CSI。
  2. 如权利要求1所述的方法,其特征在于,还包括:
    根据服务卫星的服务时间,确定所述第一反馈时刻;
    或者,
    根据第一指示信息,确定所述第一反馈时刻。
  3. 如权利要求2所述的方法,其特征在于,还包括:
    根据所述服务卫星对应的星历数据,确定所述服务卫星的服务时间;
    或者,
    根据第二指示信息,确定所述服务卫星的服务时间。
  4. 如权利要求2所述的方法,其特征在于,所述第一指示信息中包括时延信息k,所述基于第一反馈时刻,向网络设备发送预测信道状态信息CSI,包括:
    确定t+k时刻的预测CSI,其中,t为所述第一反馈时刻,其中,t和k为正数;
    在所述t时刻,向所述网络设备发送所述t+k时刻的预测CSI。
  5. 如权利要求2所述的方法,其特征在于,所述第一指示信息中包括时延信息k,所述基于第一反馈时刻,向网络设备发送预测信道状态信息CSI,包括:
    确定t+k-m时刻至t+k时刻的预测CSI,其中,t为所述第一反馈时刻,其中,m为所述预测CSI对应的时间长度,t、k和m为正数;
    在所述t时刻,向所述网络设备发送所述t+k-m时刻至t+k时刻的预测CSI。
  6. 如权利要求2所述的方法,其特征在于,所述第一指示信息为配置信息,所述根据第一指示信息,确定所述第一反馈时刻,包括:
    根据所述配置信息指示的CSI的上报次数、上报周期、上报时刻和/或时延信息,确定所述第一反馈时刻。
  7. 如权利要求2所述的方法,其特征在于,所述第一指示信息为触发指令,所述根据第一指示信息,确定所述第一反馈时刻,包括:
    接收配置信息,其中,所述配置信息用于指示CSI的上报次数、上报周期、 上报时刻和/或时延信息;
    根据所述触发指令的接收时刻及所述配置信息指示的上报次数、上报周期、上报时刻和/或时延信息,确定所述第一反馈时刻。
  8. 如权利要求2-5任一所述的方法,其特征在于,还包括:
    接收无线资源控制RRC消息,其中,所述RRC消息中包含所述第一指示信息;
    或者,
    接收媒体接入控制MAC控制单元CE,其中,所述MAC CE中包含所述第一指示信息;
    或者,
    接收下行控制信息DCI,其中,所述DCI中包含所述第一指示信息。
  9. 如权利要求1-8任一所述的方法,其特征在于,还包括:
    基于所述第一反馈时刻之前的第一时段内的信道测量结果,确定所述预测的CSI。
  10. 一种信道状态反馈的方法,其特征在于,所述方法由网络设备执行,所述方法包括:
    基于第一反馈时刻,接收终端设备发送的预测信道状态信息CSI。
  11. 如权利要求10所述的方法,其特征在于,还包括:
    根据服务卫星的服务时间,确定所述第一反馈时刻;
    或者,
    根据协议约定,确定所述第一反馈时刻。
  12. 如权利要求11所述的方法,其特征在于,还包括:
    发送第一指示信息,其中,所述第一指示信息用于指示所述第一反馈时刻。
  13. 如权利要求12所述的方法,其特征在于,所述第一指示信息中包括时延信息k,所述基于第一反馈时刻,接收终端设备发送的预测信道状态信息CSI,包括:
    在所述第一反馈时刻t,接收所述终端设备发送的t+k时刻的预测CSI;
    或者,
    在所述第一反馈时刻t,接收所述终端设备发送的t+k-m时刻至t+k时刻的预测CSI;
    其中,m为所述预测CSI对应的时间长度,t、k和m为正数。
  14. 如权利要求12或13所述的方法,其特征在于,所述第一指示信息中包含以下至少一项:
    CSI的上报次数;
    CSI的上报周期;
    CSI的上报时刻;以及,
    时延信息。
  15. 如权利要求12或13所述的方法,其特征在于,还包括:
    发送无线资源控制RRC消息,其中,所述RRC消息中包含所述第一指示信息;
    或者,
    发送媒体接入控制MAC控制单元CE,其中,所述MAC CE中包含所述第一指示信息;
    或者,
    发送下行控制信息DCI,其中,所述DCI中包含所述第一指示信息。
  16. 如权利要求10-15任一所述的方法,其特征在于,还包括:
    根据所述服务卫星对应的星历数据,确定所述服务卫星的服务时间。
  17. 如权利要求16所述的方法,其特征在于,还包括:
    发送第二指示信息,其中,所述第二指示信息用于指示所述服务卫星的服务时间。
  18. 一种通信装置,其特征在于,所述装置在终端设备侧,所述装置包括:
    收发模块,用于基于第一反馈时刻,向网络设备发送预测信道状态信息CSI。
  19. 如权利要求18所述的装置,其特征在于,还包括:
    处理模块,用于根据服务卫星的服务时间,确定所述第一反馈时刻;
    或者,
    所述处理模块,还用于根据第一指示信息,确定所述第一反馈时刻。
  20. 如权利要求19所述的装置,其特征在于,所述处理模块,还具体用于:
    根据所述服务卫星对应的星历数据,确定所述服务卫星的服务时间;
    或者,
    根据第二指示信息,确定所述服务卫星的服务时间。
  21. 如权利要求19所述的装置,其特征在于,所述第一指示信息中包括时延信息k,所述收发模块,具体用于:
    确定t+k时刻的预测CSI,其中,t为所述第一反馈时刻,其中,t和k为正数;
    在所述t时刻,向所述网络设备发送所述t+k时刻的预测CSI。
  22. 如权利要求19所述的装置,其特征在于,所述第一指示信息中包括时延信息k,所述收发模块,具体用于:
    确定t+k-m时刻至t+k时刻的预测CSI,其中,t为所述第一反馈时刻,其中,m为所述预测CSI对应的时间长度,t、k和m为正数;
    在所述t时刻,向所述网络设备发送所述t+k-m时刻至t+k时刻的预测CSI。
  23. 如权利要求19任一所述的装置,其特征在于,所述第一指示信息为配置信息,所述处理模块,具体用于:
    根据所述配置信息指示的CSI的上报次数、上报周期、上报时刻和/或时延信息,确定所述第一反馈时刻。
  24. 如权利要求19所述的装置,其特征在于,所述第一指示信息为触发指令,所述处理模块,具体用于:
    接收配置信息,其中,所述配置信息用于指示CSI的上报次数、上报周期、上报时刻和/或时延信息;
    根据所述触发指令的接收时刻及所述配置信息指示的上报次数、上报周期、上报时刻和/或时延信息,确定所述第一反馈时刻。
  25. 如权利要求19-22任一所述的装置,其特征在于,所述收发模块,还具体用于:
    接收无线资源控制RRC消息,其中,所述RRC消息中包含所述第一指示信息;
    或者,
    接收媒体接入控制MAC控制单元CE,其中,所述MAC CE中包含所述第一指示信息;
    或者,
    接收下行控制信息DCI,其中,所述DCI中包含所述第一指示信息。
  26. 如权利要求18-25任一所述的装置,其特征在于,所述处理模块,还具体用于:
    基于所述第一反馈时刻之前的第一时段内的信道测量结果,确定所述预测 的CSI。
  27. 一种通信装置,其特征在于,所述装置在网络设备侧,所述装置包括:
    收发模块,用于基于第一反馈时刻,接收终端设备发送的预测信道状态信息CSI。
  28. 如权利要求27所述的装置,其特征在于,还包括:
    处理模块,用于根据服务卫星的服务时间,确定所述第一反馈时刻;
    或者,
    所述处理模块,用于根据协议约定,确定所述第一反馈时刻。
  29. 如权利要求28所述的装置,其特征在于,所述收发模块,还具体用于:
    发送第一指示信息,其中,所述第一指示信息用于指示所述第一反馈时刻。
  30. 如权利要求29所述的装置,其特征在于,所述第一指示信息中包括时延信息k,所述收发模块,具体用于:
    在所述第一反馈时刻t,接收所述终端设备发送的t+k时刻的预测CSI;
    或者,
    在所述第一反馈时刻t,接收所述终端设备发送的t+k-m时刻至t+k时刻的预测CSI;
    其中,m为所述预测CSI对应的时间长度,t、k和m为正数。
  31. 如权利要求29或30所述的装置,其特征在于,所述第一指示信息中包含以下至少一项:
    CSI的上报次数;
    CSI的上报周期;
    CSI的上报时刻;以及,
    时延信息。
  32. 如权利要求29或30所述的装置,其特征在于,所述收发模块,具体用于:
    发送无线资源控制RRC消息,其中,所述RRC消息中包含所述第一指示信息;
    或者,
    发送媒体接入控制MAC控制单元CE,其中,所述MAC CE中包含所述第一指示信息;
    或者,
    发送下行控制信息DCI,其中,所述DCI中包含所述第一指示信息。
  33. 如权利要求27-32任一所述的装置,其特征在于,所述处理模块,还具体用于:
    根据所述服务卫星对应的星历数据,确定所述服务卫星的服务时间。
  34. 如权利要求33所述的装置,其特征在于,所述收发模块,还具体用于:
    发送第二指示信息,其中,所述第二指示信息用于指示所述服务卫星的服务时间。
  35. 一种通信装置,其特征在于,所述装置包括处理器和存储器,所述存储器中存储有计算机程序,所述处理器执行所述存储器中存储的计算机程序,以使所述装置执行如权利要求1至9中任一项所述的方法。
  36. 一种通信装置,其特征在于,所述装置包括处理器和存储器,所述存储器中存储有计算机程序,所述处理器执行所述存储器中存储的计算机程序,以使所述装置执行如权利要求10至17中任一项所述的方法。
  37. 一种通信装置,其特征在于,包括:处理器和接口电路;
    所述接口电路,用于接收代码指令并传输至所述处理器;
    所述处理器,用于运行所述代码指令以执行如权利要求1至9中任一项所述的方法。
  38. 一种通信装置,其特征在于,包括:处理器和接口电路;
    所述接口电路,用于接收代码指令并传输至所述处理器;
    所述处理器,用于运行所述代码指令以执行如权利要求10至17中任一项所述的方法。
  39. 一种计算机可读存储介质,用于存储有指令,当所述指令被执行时,使如权利要求1至9中任一项所述的方法被实现。
  40. 一种计算机可读存储介质,用于存储有指令,当所述指令被执行时,使如权利要求10至17中任一项所述的方法被实现。
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