Communication method, apparatus, and system
AssigneeHuawei Technologies Co., Ltd.
InventorLili Zhang
Life of this patent
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Abstract
A communication method applied by a first terminal and a second terminal. The method includes: by a first terminal, starting a first timer after sending feedback information to a second terminal. The first timer indicates to the first terminal that the first terminal should not listen to sidelink control information and/or sidelink data information in at least one time unit after the first timer is started. In other words, within a start duration of the first timer, the second terminal does not send the sidelink control information and/or the sidelink data information to the first terminal. Therefore, the first terminal does not need to listen to the sidelink control information and/or the sidelink data information within the duration of the first unit. This can save energy within the first terminal.
Claims17
A communication method, performed by a first terminal or a chip of the first terminal, wherein the method comprises:
- receiving sidelink control information (SCI) from a second terminal, wherein the SCI indicates a time domain resource of a sidelink;
- and
- starting a first timer, based on a time domain resource occupied by feedback information sent by the first terminal, the feedback information comprising a measurement report of the sidelink, channel state information (CSI) of the sidelink, or hybrid automatic repeat request (HARQ) information of the sidelink, and
- wherein the first terminal does not listen to the at least one sidelink control information and sidelink data information for a first duration of at least one time unit after the first timer is started,
- wherein the time domain resource that is of the sidelink and that is indicated by the SCI comprises a first resource set, the first resource set comprises time domain resources of N sidelinks, and N is a positive integer greater than or equal to 2;
- and
- the first duration is associated with a start moment of an xth time domain resource that is in the first resource set and that is indicated by the SCI, wherein
- x is an integer less than or equal to N and greater than 1, the first time domain resource that is in the first resource set and that is indicated by the SCI is used for initial transmission of sidelink data, and the xth time domain resource that is in the first resource set and that is indicated by the SCI is used for retransmission of the sidelink data.
A first terminal comprising:
- a processor;
- and
- a non-transitory memory storing instructions, that when executed by the processor cause the first terminal to perform steps comprising:
- receiving sidelink control information (SCI) from a second terminal, wherein the SCI indicates a time domain resource of a sidelink;
- and
- starting a first timer, based on a time domain resource occupied by feedback information sent by the first terminal, the feedback information comprising a measurement report of the sidelink, channel state information (CSI) of the sidelink, or hybrid automatic repeat request (HARQ) information of the sidelink, and
- wherein the first terminal does not listen to the at least one sidelink control information and sidelink data information for a first duration of at least one time unit after the first timer is started,
- wherein the time domain resource that is of the sidelink and that is indicated by the SCI comprises a first resource set, the first resource set comprises time domain resources of N sidelinks, and N is a positive integer greater than or equal to 2;
- and
- the first duration is associated with a start moment of an xth time domain resource that is in the first resource set and that is indicated by the SCI, wherein
- x is an integer less than or equal to N and greater than 1, the first time domain resource that is in the first resource set and that is indicated by the SCI is used for initial transmission of sidelink data, and the xth time domain resource that is in the first resource set and that is indicated by the SCI is used for retransmission of the sidelink data.
A non-transitory memory storing instructions, that when executed by a processor cause a first terminal to perform steps comprising:
- receiving sidelink control information (SCI) from a second terminal, wherein the SCI indicates a time domain resource of a sidelink;
- and
- starting a first timer, based on a time domain resource occupied by feedback information sent by the first terminal, the feedback information comprising a measurement report of the sidelink, channel state information (CSI) of the sidelink, or hybrid automatic repeat request (HARQ) information of the sidelink, and
- wherein the first terminal does not listen to the at least one sidelink control information and sidelink data information for a first duration of at least one time unit after the first timer is started,
- wherein the time domain resource that is of the sidelink and that is indicated by the SCI comprises a first resource set, the first resource set comprises time domain resources of N sidelinks, and N is a positive integer greater than or equal to 2;
- and
- the first duration is associated with a start moment of an xth time domain resource that is in the first resource set and that is indicated by the SCI, wherein
- x is an integer less than or equal to N and greater than 1, the first time domain resource that is in the first resource set and that is indicated by the SCI is used for initial transmission of sidelink data, and the xth time domain resource that is in the first resource set and that is indicated by the SCI is used for retransmission of the sidelink data.
Dependencies are inferred from the claim text.