WO2019165638A1 - 无线通信方法和设备 - Google Patents
无线通信方法和设备 Download PDFInfo
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- WO2019165638A1 WO2019165638A1 PCT/CN2018/077867 CN2018077867W WO2019165638A1 WO 2019165638 A1 WO2019165638 A1 WO 2019165638A1 CN 2018077867 W CN2018077867 W CN 2018077867W WO 2019165638 A1 WO2019165638 A1 WO 2019165638A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0057—Physical resource allocation for CQI
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
Definitions
- the present application relates to the field of communications and, more particularly, to a method and apparatus for wireless communication.
- a terminal may acquire channel state information (CSI) and report CSI to a base station periodically or aperiodically.
- CSI channel state information
- the embodiment of the present application provides a wireless communication method and device, which can match a flexible NR system in terms of CSI feedback.
- a wireless communication method including:
- the time unit length of the time offset is a time unit length for performing uplink transmission of the CSI report, Or the time unit length of the downlink transmission performed on the first downlink time domain location;
- the CSI reported by the terminal is received.
- the method further includes:
- the second information is used to indicate the time offset to the terminal.
- the second information and the first information are carried in the same downlink control information DCI.
- the first information is used to trigger the terminal to perform quasi-period CSI reporting;
- the downlink time domain location is a periodic time domain location, and the first uplink time domain location is a periodic time domain location.
- the first downlink time domain location is:
- the time unit length of the time offset is a time unit length of the uplink transmission
- the determining The first uplink time domain location including:
- n is an integer greater than or equal to 1.
- the time unit length of the time offset is a time unit length of the downlink transmission
- the determining The first uplink time domain location including:
- n is an integer greater than or equal to 1;
- the time unit length of the time offset is a time slot.
- the subcarrier spacing used for the CSI reporting uplink transmission is different from the first downlink timing.
- the subcarrier spacing of the downlink transmission performed at the domain location.
- a wireless communication method including:
- the first information is carried in the downlink control information DCI, and the first information is used to trigger the aperiodic channel state information CSI reporting or the quasi-period CSI reporting;
- the time unit length of the time offset is a time unit length for performing uplink transmission of the CSI report, Or the time unit length of the downlink transmission performed on the first downlink time domain location;
- the CSI is reported.
- the method further includes:
- a second information is received, the second information indicating the time offset.
- the second information and the first information are carried in the same downlink control information DCI.
- the first information is used to trigger the terminal to perform quasi-period CSI reporting, where the first The downlink time domain location is a periodic time domain location, and the first uplink time domain location is a periodic time domain location.
- the first downlink time domain location is:
- the time unit length of the time offset is a time unit length of the uplink transmission
- the determining The first uplink time domain location including:
- the first uplink time domain position is determined by adding the second uplink time domain position to the time domain position obtained by n times the time offset, and the n is an integer greater than or equal to 1.
- the time unit length of the time offset is a time unit length of the downlink transmission
- the determining The first uplink time domain location including:
- n is an integer greater than or equal to 1;
- the time unit length of the time offset is a time slot.
- the subcarrier spacing used for the CSI reporting uplink transmission is different from the first downlink timing.
- the subcarrier spacing of the downlink transmission performed at the domain location.
- a network device for performing the method of any of the first aspect or the first aspect of the first aspect.
- the network device comprises functional modules for performing the method of the first aspect or any of the possible implementations of the first aspect described above.
- a terminal for performing the method of any of the above-described second aspect or any of the possible implementations of the second aspect.
- the terminal comprises functional modules for performing the method of any of the possible implementations of the second aspect or the second aspect described above.
- a network device including a processor, a memory, and a transceiver.
- the processor, the memory, and the transceiver communicate with each other through an internal connection path, transmitting control and/or data signals, such that the network device performs the first aspect or any possible implementation of the first aspect The method in .
- a terminal including a processor, a memory, and a transceiver.
- the processor, the memory, and the transceiver communicate with each other through an internal connection path to transfer control and/or data signals, such that the terminal performs any of the second or second aspects of the foregoing possible implementations.
- the terminal or the network device may use the time unit length according to the first downlink time domain position as the starting point as the time unit length for performing the uplink transmission of the channel state information CSI, or the first downlink.
- the CSI feedback in the case of different time unit lengths (specifically, the downlink transmission performed at the first downlink time domain position) is applicable to the flexible NR system in terms of CSI feedback.
- FIG. 1 is a schematic diagram of a wireless communication system in accordance with an embodiment of the present application.
- FIG. 2 is a diagram showing a positional relationship between a first downlink time domain position and a first uplink time domain position according to an embodiment of the present application.
- FIG. 3 is a diagram showing a positional relationship between a first downlink time domain position and a first uplink time domain position according to an embodiment of the present application.
- FIG. 4 is a diagram showing a positional relationship between a first downlink time domain position and a first uplink time domain position according to an embodiment of the present application.
- FIG. 5 is a diagram showing a positional relationship between a first downlink time domain position and a first uplink time domain position according to an embodiment of the present application.
- FIG. 6 is a diagram showing a positional relationship between a first downlink time domain position and a first uplink time domain position according to an embodiment of the present application.
- FIG. 7 is a schematic block diagram of a network device according to an embodiment of the present application.
- FIG. 8 is a schematic block diagram of a terminal according to an embodiment of the present application.
- FIG. 9 is a schematic block diagram of a system chip in accordance with an embodiment of the present application.
- FIG. 10 is a schematic block diagram of a communication device in accordance with an embodiment of the present application.
- GSM Global System of Mobile communication
- CDMA Code Division Multiple Access
- WCDMA Wideband Code Division Multiple Access
- GPRS General Packet Radio Service
- LTE Long Term Evolution
- FDD Frequency Division Duplex
- TDD Time Division Duplex
- UMTS Universal Mobile Telecommunication System
- WiMAX Worldwide Interoperability for Microwave Access
- NR New Radio
- FIG. 1 shows a wireless communication system 100 to which an embodiment of the present application is applied.
- the wireless communication system 100 can include a network device 110.
- Network device 100 can be a device that communicates with a terminal device.
- Network device 100 may provide communication coverage for a particular geographic area and may communicate with terminal devices (e.g., UEs) located within the coverage area.
- the network device 100 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, or may be a base station (NodeB, NB) in a WCDMA system, or may be an evolved base station in an LTE system.
- BTS Base Transceiver Station
- NodeB NodeB
- the network device can be a relay station, an access point, an in-vehicle device, a wearable device, A network side device in a future 5G network or a network device in a publicly available Public Land Mobile Network (PLMN) in the future.
- PLMN Public Land Mobile Network
- the wireless communication system 100 also includes at least one terminal device 120 located within the coverage of the network device 110.
- Terminal device 120 can be mobile or fixed.
- the terminal device 120 may refer to an access terminal, a user equipment (User Equipment, UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, and a wireless communication.
- the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication.
- D2D device to device communication
- D2D device to device
- the 5G system or network may also be referred to as a New Radio (NR) system or network.
- NR New Radio
- FIG. 1 exemplarily shows one network device and two terminal devices.
- the wireless communication system 100 may include a plurality of network devices and may include other numbers of terminal devices within the coverage of each network device. The application embodiment does not limit this.
- the wireless communication system 100 may further include other network entities, such as a network controller, a mobility management entity, and the like.
- network entities such as a network controller, a mobility management entity, and the like.
- system and “network” are used interchangeably herein.
- the term “and/or” in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and / or B, which may indicate that A exists separately, and both A and B exist, respectively. B these three situations.
- the character "/" in this article generally indicates that the contextual object is an "or" relationship.
- FIG. 2 is a schematic flowchart of a wireless communication method 200 according to an embodiment of the present application.
- the method 200 is optionally applicable to the system shown in FIG. 1, but is not limited thereto. As shown in FIG. 2, the method 200 includes at least some of the following.
- the network device sends the first information, where the first information is used in the Downlink Control Information (DCI), where the first information is used to trigger the terminal to perform aperiodic CSI reporting or quasi-period CSI reporting.
- DCI Downlink Control Information
- the DCI can carry other information in addition to the first information, which is not specifically limited in this embodiment of the present application.
- the aperiodic CSI reporting may be performed by performing a specific number (for example, one time) of CSI reporting after receiving the first information.
- the quasi-periodic CSI reporting may refer to performing CSI reporting after the first information is received.
- the quasi-periodic CSI report may be stopped after receiving an instruction indicating that the CSI report is stopped.
- the terminal receives the first information.
- the terminal determines a first uplink time domain location according to the time offset and the first downlink time domain location as the starting point, where the time unit length of the time offset is used for performing channel state information CSI reporting.
- the network device may send the second information to the terminal, where the second information carries the time offset.
- the first information and the second information may be carried in the same DCI.
- the time offset can be preset on the terminal.
- the time offset may be preset on the terminal by using RRC signaling.
- the network device may send a Radio Resource Control (RRC) to indicate multiple time offsets, and indicate a subsequently adopted time offset in the DCI.
- RRC Radio Resource Control
- the numeroloy (basic parameter set) of the uplink and downlink transmissions between the network device and the terminal may be different, and specifically, the subcarrier spacing may be different, and the time unit length corresponding to the uplink and downlink transmission may be different, where The time unit can be a symbol, a time slot, or the like.
- the time unit length of the uplink and downlink transmission between the network device and the terminal may be different.
- the time unit length of the uplink transmission reported by the CSI is different from the time unit length of the downlink transmission performed by the first downlink time domain location.
- the time unit length of the time offset is a time slot, that is, the time offset is a unit of time slot.
- the embodiment of the present application is not limited thereto.
- the time offset may also be in units of symbols.
- the unit length of the time offset is a time unit length for performing uplink transmission reported by the channel state information CSI and a downlink transmission time at the first downlink time domain position.
- the unit length is the smaller one.
- the time unit length of the uplink transmission for reporting the channel state information CSI is smaller than the time unit length of the downlink transmission performed at the first downlink time domain location,
- the time unit length of the uplink transmission for reporting the channel state information CSI is taken as the time unit length of the time offset.
- the time unit length of the uplink transmission for reporting the channel state information CSI is greater than the time unit length of the downlink transmission performed at the first downlink time domain location, Taking the time unit length of the uplink transmission for reporting the channel state information CSI as the time unit length of the time offset, and taking the time unit length of the downlink transmission performed at the first downlink time domain position as the time offset.
- the first information is used to trigger the terminal to perform quasi-periodic CSI reporting;
- the first downlink time domain location is a periodic time domain location, and the first uplink time domain location is a periodic time domain location.
- the channel measurement resource corresponding to the CSI measurement, the interference resource corresponding to the CSI measurement, or the CSI reference resource may be periodic or quasi-periodic.
- the channel measurement resource corresponding to the CSI measurement, the interference resource corresponding to the CSI measurement, or the CSI reference resource may be periodic, quasi-periodic, or non-periodic.
- the measurement hypothesis can be performed when performing CSI measurement, wherein the CSI reference resource is used to obtain these measurement hypotheses.
- the resources are periodic or quasi-periodic, meaning that they can be transmitted on periodic or quasi-quasi-recurrent resources, and that the transmissions that are performed must be periodic or quasi-periodic.
- the first downlink time domain location is:
- the downlink time domain location where the first information is located where the first information is located;
- the downlink time domain location where the CSI reference resource is located is located.
- the time domain location where the information or resource is located may be at least one of a symbol or a time slot in which the information or resource is located.
- the first downlink time domain location is:
- At least one of the symbols in which the first information is located eg, the first symbol or the last symbol, or the last symbol of the time slot in which the first information is located or the time slot in which it is located;
- At least one of the symbols in which the channel measurement resource of the CSI measurement is located eg, the first symbol or the last symbol), or the last symbol of the time slot in which the CSI is located or the time slot in which it is located; or
- At least one of the symbols in which the interference resource of the CSI measurement is located (for example, the first symbol or the last symbol), or the last symbol of the time slot in which the CSI is located or the time slot in which it is located; or
- At least one of the symbols in which the CSI reference resource is located (eg, the first symbol or the last symbol), or the last symbol of the time slot in which it is located or the time slot in which it is located.
- the first uplink time domain location determined by the embodiment of the present application may be a specific time slot, and which symbol of the specific time slot is not determined based on the time offset and the first downlink time domain location.
- the embodiment of the present application is not limited thereto, and the embodiment of the present application may also determine which specific symbol in a specific time slot, for example, may combine the symbol position of the first information in the time slot in which the first information is located, and determine the first uplink. The specific symbol position of the time domain location.
- the first downlink time domain location is at least one of the symbols of the channel measurement resource for performing the current secondary CSI measurement, or the time slot or location where the channel is located.
- the last symbol of the time slot; or at least one of the symbols in which the interference resource of the current secondary CSI measurement is located, or the last symbol of the time slot in which the slot is located; or the CSI reference for performing the current secondary CSI measurement At least one of the symbols in which the resource is located, or the last symbol of the time slot in which it is located or the time slot in which it is located.
- the time unit length of the time offset is a time unit length of the uplink transmission, and mapping the first downlink time domain location to the second uplink time domain location; and the second uplink time domain location
- the first uplink time domain position is determined by adding a time domain position obtained by n times the time offset, where n is an integer greater than or equal to 1.
- the second uplink time domain location may be a time slot.
- the uplink If the subcarrier spacing is greater than the downlink subcarrier spacing, one of the time slots (eg, the first time slot or the last time slot, etc.) may be taken as the second uplink time domain location.
- the second uplink time domain position may be added with the time offset to obtain the first uplink time domain position, where this means that n is 1.
- the downlink (DL) subcarrier spacing is 15 kHz
- the uplink (UL) subcarrier spacing is 60 kHz.
- the starting point of the resource for calculating the feedback CSI is the DCI signal triggering the aperiodic CSI.
- the downlink subcarrier spacing is 60 kHz, and the uplink subcarrier spacing is 15 kHz.
- the starting point of the resource for calculating the feedback CSI is the time slot in which the DCI signaling that triggers the aperiodic CSI is located, and the defined time offset is The shift offset is defined based on the upstream numerology.
- the uplink time slot to which the symbol is mapped is +3.
- the first downlink time domain location is at least one of the symbols in which the first information is located, or the last slot of the time slot or the time slot in which the first information is located
- the symbol may be used to obtain the first uplink time domain position by adding the time offset to the second uplink time domain position in the first CSI feedback, and the first calculation may be performed when the CSI feedback is performed for the second time.
- the second uplink time domain position plus the time offset is 2 times to obtain the first uplink time domain position. (In the actual calculation process, the time offset may be added to the first uplink time domain position calculated last time. Calculated first uplink time domain location), and so on.
- the first downlink time domain location is at least one of the symbols in which the CSI measurement channel measurement resource is located, or the time slot or the time slot in which the slot is located.
- the time slot of the time slot or the last symbol of the time slot in which the current uplink CSI measurement is performed, the interference resource or the reference resource is used to determine the second uplink time domain position, and the second uplink time domain position may be added.
- the upper time offset obtains the first uplink time domain position of the current secondary CSI feedback.
- the time unit length of the time offset is a time unit length of the downlink transmission
- the first downlink time domain position is added to the time offset to obtain a second downlink time domain position.
- the second downlink time domain location is mapped to the first uplink time domain location.
- the second downlink time domain location is a time slot.
- the second downlink time domain location is a time slot and the first uplink time domain location is a time slot
- the second downlink time domain location is mapped to multiple uplink time slots, at this time, the uplink subcarriers If the interval is greater than the downlink subcarrier spacing, one of the time slots (eg, the first time slot or the last time slot, etc.) may be taken as the second uplink time domain location.
- the first downlink time domain position may be added with the time offset to obtain the second downlink time domain position, where this means that n is 1.
- the downlink subcarrier spacing is 60 kHz, and the uplink subcarrier spacing is 15 kHz.
- the starting point of the resource for calculating the feedback CSI is at least one symbol of the DCI signaling that triggers the aperiodic CSI, and the defined time.
- the offset offset is defined based on the downstream numerology.
- the starting point of the resource for calculating the feedback CSI is at least one symbol in which the DCI signaling of the aperiodic CSI is triggered, and the defined time offset offset is defined based on the downlink numerology.
- one of the time slots (for example, the last time slot or the first time slot, etc.) may be taken as a time slot for feeding back CSI.
- CSI feedback can be performed at the last time slot m+5 mapped to.
- the offset may also be defined based on a smaller time unit, specifically, based on the uplink numerology.
- the first downlink time domain location is at least one of the symbols in which the first information is located, or the last slot of the time slot or the time slot in which the first information is located
- the symbol may be used to obtain the second downlink time domain position by adding the time offset to the first downlink time domain position in the first CSI feedback, and may be the first downlink time when the CSI feedback is performed for the second time.
- the second downlink time domain position is obtained by adding the time offset to the domain position by two times of the time offset. (In the actual calculation process, the time offset may be added to the second downlink time domain position calculated in the previous calculation to obtain the first calculation. Two downlink time domain locations), and so on.
- the first downlink time domain location is at least one of the symbols in which the CSI measurement channel measurement resource is located, or the time slot or the time slot in which the slot is located.
- the time slot or the last symbol of the time slot in which the current downlink CSI measurement is performed, the interference resource or the reference resource is used as the first downlink time domain location, and the first downlink time domain location may be added.
- the upper time offset obtains the second downlink time domain position corresponding to the current secondary CSI feedback.
- the subcarrier spacing used for uplink transmission of the CSI reporting is different from the subcarrier spacing of the downlink transmission performed at the first downlink time domain location.
- the terminal reports the CSI in the first uplink time domain location.
- the network device determines, according to the time offset and the first downlink time domain location as the starting point, the first uplink time domain location, where the time unit length of the time offset is used for performing channel state information CSI reporting The time unit length of the uplink transmission, or the time unit length of the downlink transmission performed on the first downlink time domain location.
- the network device sends the first information, where the first information is used to indicate the time offset to the terminal.
- the time unit length of the time offset is a time unit length of the uplink transmission, and mapping the first downlink time domain location to the second uplink time domain location; and the second uplink time domain location The time domain location obtained by the time offset is added to determine the first uplink time domain location.
- the time unit length of the time offset is a time unit length of the downlink transmission
- the first downlink time domain position is added to the time offset to obtain a second downlink time domain position.
- the second downlink time domain location is mapped to the first uplink time domain location.
- the description of the manner in which the network device determines the location of the first uplink time domain may be omitted.
- the network device receives the CSI reported by the terminal.
- the terminal or the network device may use the time unit length according to the first downlink time domain position as the starting point as the time unit length for performing the uplink transmission of the channel state information CSI, or the first downlink.
- the CSI feedback in the case of different time unit lengths (specifically, the downlink transmission performed at the first downlink time domain position) is applicable to the flexible NR system in terms of CSI feedback.
- the present invention calculates the uplink time domain position reported by the aperiodic or quasi-period CSI by using the same rules for the network device and the terminal, and ensures that the terminal and the network device perform the aperiodic or quasi-periodic CSI at the same position. Transmission and reception ensure that the system can perform optimal scheduling according to the reported CSI.
- FIG. 7 is a schematic block diagram of a network device 300 in accordance with an embodiment of the present application. As shown in FIG. 7, the network device 300 includes a communication unit 310 and a processing unit 320;
- the communication unit 310 is configured to: send the first information, where the first information is carried in the downlink control information DCI, where the first information is used to trigger the terminal to perform the aperiodic channel state information CSI reporting or the quasi-period CSI reporting;
- the processing unit is configured to: determine, according to the time offset and the first downlink time domain position as the starting point, the first uplink time domain location, where the time unit length of the time offset is used for performing CSI reporting The time unit length of the uplink transmission, or the time unit length of the downlink transmission performed on the first downlink time domain location;
- the communication unit is further configured to: receive the CSI reported by the terminal in the first uplink time domain location.
- the communication unit 310 is further configured to: send second information, where the second information is used to indicate the time offset to the terminal.
- the second information and the first information are carried in the same downlink control information DCI.
- the first information is used to trigger the terminal to perform quasi-periodic CSI reporting;
- the first downlink time domain location is a periodic time domain location, and the first uplink time domain location is periodic. Time domain location.
- the first downlink time domain location is:
- the time unit length of the time offset is a time unit length of the uplink transmission
- the processing unit 320 is further configured to:
- the first uplink time domain position is determined by adding the second uplink time domain position to the time domain position obtained by n times the time offset, where n is an integer greater than or equal to 1.
- the time unit length of the time offset is a time unit length of the downlink transmission
- the processing unit 320 is further configured to:
- n is an integer greater than or equal to 1;
- the time unit length of the time offset is a time slot.
- the subcarrier spacing used for uplink transmission of the CSI reporting is different from the subcarrier spacing of the downlink transmission performed at the first downlink time domain location.
- the network device 300 may correspond to the network device in the method 200, and implement corresponding operations of the network device in the method 200. For brevity, no further details are provided herein.
- FIG. 8 is a schematic block diagram of a terminal 400 in accordance with an embodiment of the present application. As shown in FIG. 8, the terminal 400 includes a communication unit 410 and a processing unit 420;
- the communication unit 410 is configured to receive the first information, where the first information is carried in the downlink control information DCI, where the first information is used to trigger the aperiodic channel state information CSI reporting or the quasi-period CSI reporting;
- the processing unit 420 is configured to: determine, according to the time offset and the first downlink time domain location as the starting point, the first uplink time domain location, where the time unit length of the time offset is used for performing CSI reporting The time unit length of the uplink transmission, or the time unit length of the downlink transmission performed at the first downlink time domain location;
- the communication unit 410 is further configured to: report CSI in the first uplink time domain location.
- the communication unit 410 is further configured to:
- a second information is received, the second information indicating the time offset.
- the second information and the first information are carried in the same downlink control information DCI.
- the first information is used to trigger the terminal to perform quasi-periodic CSI reporting, where the first downlink time domain location is a periodic time domain location, and the first uplink time domain location is periodic. Time domain location.
- the first downlink time domain location is:
- the time unit length of the time offset is a time unit length of the uplink transmission
- the processing unit is further configured to:
- the time unit length of the time offset is a time unit length of the downlink transmission
- the processing unit is further configured to:
- n is an integer greater than or equal to 1;
- the time unit length of the time offset is a time slot.
- the subcarrier spacing used for uplink transmission of the CSI reporting is different from the subcarrier spacing of the downlink transmission performed at the first downlink time domain location.
- terminal 400 may correspond to the terminal in the method 200, and the corresponding operations of the terminal in the method 200 may be implemented. For brevity, details are not described herein again.
- the 9 includes an input interface 801, an output interface 802, the processor 803, and a memory 804 that can be connected by an internal communication connection line.
- the processor 803 is configured to execute code in the memory 804.
- the processor 803 when the code is executed, the processor 803 implements a method performed by a network device in a method embodiment. For the sake of brevity, it will not be repeated here.
- the processor 803 when the code is executed, the processor 803 implements a method performed by a terminal in a method embodiment. For the sake of brevity, it will not be repeated here.
- FIG. 10 is a schematic block diagram of a communication device 900 in accordance with an embodiment of the present application.
- the communication device 900 includes a processor 910 and a memory 920.
- the memory 920 can store program code, and the processor 910 can execute the program code stored in the memory 920.
- the communication device 900 can include a transceiver 930 that can control the transceiver 930 to communicate externally.
- the processor 910 can call the program code stored in the memory 920 to perform the corresponding operations of the network device in the method embodiment.
- the processor 910 can call the program code stored in the memory 920 to perform the corresponding operations of the network device in the method embodiment.
- the processor 910 can call the program code stored in the memory 920 to perform the corresponding operations of the terminal in the method embodiment.
- the processor 910 can call the program code stored in the memory 920 to perform the corresponding operations of the terminal in the method embodiment.
- the processor of the embodiment of the present application may be an integrated circuit chip with signal processing capability.
- each step of the foregoing method embodiment may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software.
- the processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a Field Programmable Gate Array (FPGA), or the like. Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
- the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
- the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
- the steps of the method disclosed in the embodiments of the present application may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
- the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
- the storage medium is located in the memory, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method.
- the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
- the non-volatile memory may be a read-only memory (ROM), a programmable read only memory (PROM), an erasable programmable read only memory (Erasable PROM, EPROM), or an electric Erase programmable read only memory (EEPROM) or flash memory.
- the volatile memory can be a Random Access Memory (RAM) that acts as an external cache.
- RAM Random Access Memory
- many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous DRAM).
- SDRAM Double Data Rate SDRAM
- DDR SDRAM Double Data Rate SDRAM
- ESDRAM Enhanced Synchronous Dynamic Random Access Memory
- SLDRAM Synchronous Connection Dynamic Random Access Memory
- DR RAM direct memory bus random access memory
- the disclosed systems, devices, and methods may be implemented in other manners.
- the device embodiments described above are merely illustrative.
- the division of the unit is only a logical function division.
- there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
- the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
- the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
- each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
- the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
- the technical solution of the present application which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
- the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
- the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .
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Abstract
Description
Claims (36)
- 一种无线通信方法,其特征在于,包括:发送第一信息,所述第一信息承载于下行控制信息DCI,所述第一信息用于触发所述终端进行非周期信道状态信息CSI上报或准周期CSI上报;根据时间偏移量以及作为起始点的第一下行时域位置,确定第一上行时域位置,所述时间偏移量的时间单位长度为用于进行CSI上报的上行传输的时间单位长度,或为所述第一下行时域位置上进行的下行传输的时间单位长度;在所述第一上行时域位置,接收终端上报的CSI。
- 根据权利要求1所述的方法,其特征在于,所述方法还包括:发送第二信息,所述第二信息用于向所述终端指示所述时间偏移量。
- 根据权利要求2所述的方法,其特征在于,所述第二信息与所述第一信息承载于同一下行控制信息DCI中。
- 根据权利要求1至3中任一项所述的方法,其特征在于,所述第一信息用于触发所述终端进行准周期CSI上报;所述第一下行时域位置是周期性的时域位置,所述第一上行时域位置是周期性的时域位置。
- 根据权利要求1至4中任一项所述的方法,其特征在于,所述第一下行时域位置为:所述第一信息所在的符号中的至少一个,或所在的时隙或所在的时隙的最后一个符号;或进行CSI测量的信道测量资源所在的符号中的至少一个,或所在的时隙或所在的时隙的最后一个符号;或进行CSI测量的干扰资源所在的符号中的至少一个,或所在的时隙或所在的时隙的最后一个符号;或,CSI参考资源所在的符号中的至少一个,或所在的时隙或所在的时隙的最后一个符号。
- 根据权利要求1至5中任一项所述的方法,其特征在于,所述时间偏移量的时间单位长度为上行传输的时间单位长度,所述确定第一上行时域位置,包括:将所述第一下行时域位置映射为第二上行时域位置;将所述第二上行时域位置加上所述时间偏移量的n倍,得到的时域位置,确定所述第一上行时域位置,所述n为大于或等于1的整数。
- 根据权利要求1至6中任一项所述的方法,其特征在于,所述时间偏移量的时间单位长度为下行传输的时间单位长度,所述确定第一上行时域位置,包括:将所述第一下行时域位置加上所述时间偏移量的n倍,得到第二下行时域位置,所述n为大于或等于1的整数;将所述第二下行时域位置映射为所述第一上行时域位置。
- 根据权利要求1至7中任一项所述的方法,其特征在于,所述时间偏移量的时间单位长度为时隙。
- 根据权利要求1至8中任一项所述的方法,其特征在于,用于进行CSI上报的上行传输的子载波间隔不同于所述第一下行时域位置上进行的下行传输的子载波间隔。
- 一种无线通信方法,其特征在于,包括:接收第一信息,所述第一信息承载于下行控制信息DCI,所述第一信息用于触发非周期信道状态信息CSI上报或准周期CSI上报;根据时间偏移量以及作为起始点的第一下行时域位置,确定第一上行时域位置,所述时间偏移量的时间单位长度为用于进行CSI上报的上行传输的时间单位长度,或为所述第一下行时域位置上进行的下行传输的时间单位长度;在所述第一上行时域位置,上报CSI。
- 根据权利要求10所述的方法,其特征在于,所述方法还包括:接收第二信息,所述第二信息用指示所述时间偏移量。
- 根据权利要求11所述的方法,其特征在于,所述第二信息与所述第一信息承载于同一下行控制信息DCI中。
- 根据权利要求10或11所述的方法,其特征在于,所述第一信息用于触发所述终端进行准周期CSI上报,所述第一下行时域位置是周期性的时域位置,所述第一上行时域位置是周期性的时域位置。
- 根据权利要求10至13中任一项所述的方法,其特征在于,所述第一下行时域位置为:所述第二信息所在的符号中的至少一个,或所在的时隙或所在的时隙的最后一个符号;或进行CSI测量的信道测量资源所在的符号中的至少一个,或所在的时隙或所在的时隙的最后一个符号;或进行CSI测量的干扰资源所在的符号中的至少一个,或所在的时隙或所在的时隙的最后一个符号;或,CSI参考资源所在的符号中的至少一个,或所在的时隙或所在的时隙的最后一个符号。
- 根据权利要求10至14中任一项所述的方法,其特征在于,所述时间偏移量的时间单位长度为上行传输的时间单位长度,所述确定第一上行时域位置,包括:将所述第一下行时域位置映射为第二上行时域位置;将所述第二上行时域位置加上所述时间偏移量的n倍得到的时域位置,确定所述第一上行时域位置,所述n为大于或等于1的整数。
- 根据权利要求10至15中任一项所述的方法,其特征在于,所述时间偏移量的时间单位长度为下行传输的时间单位长度,所述确定第一上行时域位置,包括:将所述第一下行时域位置加上所述时间偏移量的n倍,得到第二下行时域位置,所述n为大于或等于1的整数;将所述第二下行时域位置映射为所述第一上行时域位置。
- 根据权利要求10至16中任一项所述的方法,其特征在于,所述时间偏移量的时间单位长度为时隙。
- 根据权利要求10至17中任一项所述的方法,其特征在于,用于进行CSI上报的上行传输的子载波间隔不同于所述第一下行时域位置上进行的下行传输的子载波间隔。
- 一种网络设备,其特征在于,包括通信单元和处理单元;其中,所述通信单元用于:发送第一信息,所述第一信息承载于下行控制信息DCI,所述第一信息用于触发所述终端进行非周期信道状态信息CSI上报或准周期CSI上报;所述处理单元用于:根据时间偏移量以及作为起始点的第一下行时域位置,确定第一上行时域位置,所述时间偏移量的时间单位长度为用于进行CSI上报的上行传输的时间单位长度,或为所述第一下行时域位置上进行的下行传输的时间单位长度;所述通信单元进一步用于:在所述第一上行时域位置,接收终端上报的CSI。
- 根据权利要求19所述的设备,其特征在于,所述通信单元进一步用于:发送第二信息,所述第二信息用于向所述终端指示所述时间偏移量。
- 根据权利要求20所述的设备,其特征在于,所述第二信息与所述第一信息承载于同一下行控制信息DCI中。
- 根据权利要求19至21中任一项所述的设备,其特征在于,所述第一信息用于触发所述终端进行准周期CSI上报;所述第一下行时域位置是周期性的时域位置,所述第一上行时域位置是周期性的时域位置。
- 根据权利要求19至22中任一项所述的设备,其特征在于,所述第一下行时域位置为:所述第一信息所在的符号中的至少一个,或所在的时隙或所在的时隙的最后一个符号;进行CSI测量的信道测量资源所在的符号中的至少一个,或所在的时隙或所在的时隙的最后一个符号;或进行CSI测量的干扰资源所在的符号中的至少一个,或所在的时隙或所在的时隙的最后一个符号;或,CSI参考资源所在的符号中的至少一个,或所在的时隙或所在的时隙的最后一个符号。
- 根据权利要求19至23中任一项所述的设备,其特征在于,所述时间偏移量的时间单位长度为上行传输的时间单位长度,所述处理单元进一步用于:将所述第一下行时域位置映射为第二上行时域位置;将所述第二上行时域位置加上所述时间偏移量的n倍,得到的时域位置,确定所述第一上行时域位置,所述n为大于或等于1的整数。
- 根据权利要求19至24中任一项所述的设备,其特征在于,所述时间偏移量的时间单位长度为下行传输的时间单位长度,所述处理单元进一步用于:将所述第一下行时域位置加上所述时间偏移量的n倍,得到第二下行时域位置,所述n为大于或等于1的整数;将所述第二下行时域位置映射为所述第一上行时域位置。
- 根据权利要求19至25中任一项所述的设备,其特征在于,所述时间偏移量的时间单位长度为时隙。
- 根据权利要求19至26中任一项所述的设备,其特征在于,用于进行CSI上报的上行传输的子载波间隔不同于所述第一下行时域位置上进行的下行传输的子载波间隔。
- 一种终端,其特征在于,包括通信单元和处理单元;其中,所述通信单元用于:接收第一信息,所述第一信息承载于下行控制信息DCI,所述第一信息用于触发非周期信道状态信息CSI上报或准周期CSI上报;所述处理单元用于:根据时间偏移量以及作为起始点的第一下行时域位置,确定第一上行时域位置,所述时间偏移量的时间单位长度为用于进行CSI上报的上行传输的时间单位长度,或为所述第一下行时域位置上进行的下行传输的时间单位长度;所述通信单元进一步用于:在所述第一上行时域位置,上报CSI。
- 根据权利要求28所述的终端,其特征在于,所述通信单元进一步用于:接收第二信息,所述第二信息用指示所述时间偏移量。
- 根据权利要求29所述的终端,其特征在于,所述第二信息与所述第一信息承载于同一下行控制信息DCI中。
- 根据权利要求28或29所述的终端,其特征在于,所述第一信息用于触发所述终端进行准周期CSI上报,所述第一下行时域位置是周期性的时域位置,所述第一上行时域位置是周期性的时域位置。
- 根据权利要求28至31中任一项所述的终端,其特征在于,所述第一下行时域位置为:所述第二信息所在的符号中的至少一个,或所在的时隙或所在的时隙的最后一个符号;进行CSI测量的信道测量资源所在的符号中的至少一个,或所在的时隙或所在的时隙的最后一个符号;或进行CSI测量的干扰资源所在的符号中的至少一个,或所在的时隙或所在的时隙的最后一个符号;或,CSI参考资源所在的符号中的至少一个,或所在的时隙或所在的时隙的最后一个符号。
- 根据权利要求28至32中任一项所述的终端,其特征在于,所述时间偏移量的时间单位长度为上行传输的时间单位长度,所述处理单元进一步用于:将所述第一下行时域位置映射为第二上行时域位置;将所述第二上行时域位置加上所述时间偏移量的n倍得到的时域位置,确定所述第一上行时域位置,所述n为大于或等于1的整数。
- 根据权利要求28至33中任一项所述的终端,其特征在于,所述时间偏移量的时间单位长度为下行传输的时间单位长度,所述处理单元进一步用于:将所述第一下行时域位置加上所述时间偏移量的n倍,得到第二下行时域位置,所述n为大于或等于1的整数;将所述第二下行时域位置映射为所述第一上行时域位置。
- 根据权利要求28至34中任一项所述的终端,其特征在于,所述时间偏移量的时间单位长度为时隙。
- 根据权利要求28至35中任一项所述的终端,其特征在于,用于进行CSI上报的上行传输的子载波间隔不同于所述第一下行时域位置上进行的下行传输的子载波间隔。
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SG11202007616YA (en) | 2020-09-29 |
CN111934833A (zh) | 2020-11-13 |
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US20200403678A1 (en) | 2020-12-24 |
EP3737144A4 (en) | 2020-11-25 |
CN109644365A (zh) | 2019-04-16 |
CN111934833B (zh) | 2023-01-17 |
KR20200118184A (ko) | 2020-10-14 |
AU2018411307A1 (en) | 2020-09-03 |
KR102392463B1 (ko) | 2022-04-28 |
EP3737144B1 (en) | 2021-12-22 |
US11539414B2 (en) | 2022-12-27 |
JP7064602B2 (ja) | 2022-05-10 |
AU2018411307B2 (en) | 2021-09-30 |
JP2021515449A (ja) | 2021-06-17 |
CN109644365B (zh) | 2020-08-04 |
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