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US 11,637,676 B2Granted
Data transmission method and device
AssigneeHuawei Technologies Co., Ltd.
InventorsZhongfeng Li, Yongzhao Cao
Life of this patent
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Abstract
Embodiments of this application provide a data transmission method and a device. The method includes: obtaining, by a terminal, first indication information or second indication information, where the first indication information is used to indicate that a reference signal is carried in a resource unit, and the second indication information is used to indicate that no reference signal is carried in a resource unit; and performing, by the terminal, data transmission according to the first indication information or the second indication information. The reference signal can be properly configured in the embodiments.
Claims20
A method comprising:
- obtaining, by a terminal device, downlink control information (DCI) from an access network device, wherein the DCI comprises information about a modulation order, and information about a quantity of scheduled resource blocks;
- and
- performing, by the terminal device, data communication with the access network device in one or more of the scheduled resource blocks according to the modulation order,
- wherein information carried in the one or more of the scheduled resource blocks
- (i) does not include any reference signal that is used for phase noise estimation or phase noise cancelation, based on the modulation order being less than a preset modulation order, and
- (ii) includes at least one reference signal that is used for phase noise estimation or phase noise cancelation, based on the modulation order being greater than or equal to the preset modulation order and the quantity of the scheduled resource blocks being greater than or equal to a preset quantity.
3 more elements
A method comprising:
- sending, by an access network device, downlink control information (DCI) to a terminal device, wherein the DCI comprises information about a modulation order, and information about a quantity of scheduled resource blocks;
- and
- performing, by the access network device, data communication with the terminal device in one or more of the scheduled resource blocks according to the modulation order, wherein information carried in the one or more of the scheduled resource blocks
- (i) does not include any reference signal that is used for phase noise estimation or phase noise cancelation, based on a modulation order being less than a preset modulation order, and
- (ii) includes at least one reference signal that is used for phase noise estimation or phase noise cancelation, based on the modulation order being greater than or equal to the preset modulation order and the quantity of the scheduled resource blocks being greater than or equal to a preset quantity.
2 more elements
An apparatus comprising:
- at least one processor and a transceiver;
- wherein the at least one processor is configured to:
- obtain, through the transceiver, downlink control information (DCI) from an access network device, wherein the DCI comprises information about a modulation order, and information about a quantity of scheduled resource blocks;
- and
- perform, through the transceiver, data communication with the access network device in one or more of the scheduled resource blocks according to the modulation order,
- wherein information carried in the one or more of the scheduled resource blocks
- (i) does not include any reference signal that is used for phase noise estimation or phase noise cancelation, based on a modulation order being less than a preset modulation order, and
- (ii) includes at least one reference signal that is used for phase noise estimation or phase noise cancelation, based on the modulation order being greater than or equal to the preset modulation order and the quantity of the scheduled resource blocks being greater than or equal to a preset quantity.
5 more elements
An apparatus comprising:
- at least one processor and a transceiver;
- wherein the at least one processor is configured to:
- send, through the transceiver, downlink control information (DCI) to a terminal device, wherein the DCI comprises information about a modulation order, and information about a quantity of scheduled resource blocks;
- and
- perform, through the transceiver, data communication with the terminal device in one or more of the scheduled resource blocks according to the modulation order,
- wherein information carried in the one or more of the scheduled resource blocks
- (i) does not include any reference signal that is used for phase noise estimation or phase noise cancelation, based on a modulation order being less than a preset modulation order, and
- (ii) includes at least one reference signal that is used for phase noise estimation or phase noise cancelation, based on the modulation order being greater than or equal to the preset modulation order and the quantity of the scheduled resource blocks being greater than or equal to a preset quantity.
5 more elements
Dependencies are inferred from the claim text.