Data transmission method applied to short-range wireless communication and communication apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorsShengjie Zhang, Tao Huang, Zhepeng Ma
Life of this patent
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Abstract
Example data transmission methods and apparatus are described. In one example method, a primary device sends a first data packet to a plurality of secondary devices. The primary device separately receives first identification information that is fed back by a respective one of the plurality of secondary devices and that indicates whether a corresponding secondary device successfully receives corresponding first data from the first data packet. The primary device selectively resends the first data packet based on the first identification information.
Claims20
A method for data transmission, comprising:
- sending a first data packet to a plurality of first secondary devices, wherein the first data packet comprises at least one piece of first data corresponding to the plurality of first secondary devices;
- receiving a plurality of pieces of first identification information respectively fed back by the plurality of first secondary devices, wherein each first identifier in a respective piece of first identification information indicates whether a corresponding first secondary device successfully receives a corresponding piece of first data from the first data packet;
- selectively resending the first data packet based on the plurality of pieces of first identification information;
- and
- separately sending second identification information to the plurality of first secondary devices, wherein each second identifier in a respective second identification information indicates whether a primary device successfully receives first identification information of a corresponding first secondary device.
A method for data transmission, comprising:
- receiving a first data packet from a primary device in a first slot in an event period, wherein the first data packet comprises at least one piece of first data corresponding to a plurality of first secondary devices;
- feeding back first identification information to the primary device in any one of second slots in the event period, wherein a first identifier in the first identification information indicates whether the first secondary device successfully receives a corresponding piece of first data from the first data packet, and different first secondary devices respectively correspond to different second slots;
- and
- receiving second identification information from the primary device, wherein a second identifier in the second identification information indicates whether the primary device has received corresponding first identification information.
An apparatus for communication, wherein the apparatus comprises at least one processor, one or more memories coupled to the at least one processor, and a communication interface coupled to the at least one processor, wherein
- the one or more memories store programming instructions for execution by the at least one processor to:
- send a first data packet to a plurality of first secondary devices through the communication interface, wherein the first data packet comprises at least one piece of first data corresponding to the plurality of first secondary devices;
- receive, through the communication interface, a plurality of pieces of first identification information respectively fed back by the plurality of first secondary devices, wherein each first identifier in a respective piece of first identification information indicates whether a corresponding first secondary device successfully receives a corresponding piece of first data from the first data packet;
- selectively resend the first data packet based on the plurality of pieces of first identification information;
- and
- send second identification information to the plurality of first secondary devices through the communication interface, wherein each second identifier indicates whether the primary device successfully receives first identification information of a corresponding first secondary device.
Dependencies are inferred from the claim text.