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US 10,375,600 B2Granted
Data retransmission method, device, and system
AssigneeHuawei Technologies Co., Ltd.
InventorsXiaocui Li, Jian Wang, Da Wang
Life of this patent
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Abstract
A data retransmission method includes transmitting, by a first device, data to a second device by using a first carrier. The first carrier is an unlicensed carrier. The method additionally includes retransmitting, by the first device, the data to the second device by using a second carrier. The first carrier and the second carrier are different carriers. The method additionally includes sending, by the first device, control signaling to the second device. The control signaling is used to indicate the data.
Claims12
A data retransmission method, comprising:
- transmitting, by a first device and using a first unlicensed carrier, data to a second device;
- retransmitting, by the first device and using a second unlicensed carrier that is different than the first unlicensed carrier, the data to the second device;
- and
- subsequent to transmitting the data using the first unlicensed carrier, sending, to the second device by the first device via the second unlicensed carrier, control signaling used to indicate the data, wherein the control signaling includes a modulation and coding scheme (MCS) field that indicates a modulation scheme for the data retransmitted via the second unlicensed carrier and that the data is retransmitted via the second unlicensed carrier, wherein the MCS field can be populated with any one of 32 possible values, wherein a first plurality of sequential values of the MCS field in the range of [0, 31−N] corresponds to a first predetermined modulation scheme, wherein a second plurality of sequential values of the MCS field in the range of [0, 31−N] corresponds to a second predetermined modulation scheme, wherein each of the first plurality of sequential values corresponds to a respective carrier of a plurality of carriers according to a sequence, wherein each of the second plurality of sequential values corresponds to a respective carrier of the plurality of carriers according to the sequence such that a first value in the first plurality of sequential values and a first value in the second plurality of sequential values correspond to a first predetermined carrier, and such that a second value in the first plurality of sequential values and a second value in the second plurality of sequential values correspond to a second predetermined carrier.
1 more element
A data retransmission method, comprising:
- receiving, by a second device via a first unlicensed carrier, first data from a first device;
- receiving, by the second device via a second unlicensed carrier that is different than the first unlicensed carrier, retransmitted data from the first device, the retransmitted data corresponding to the first data;
- and
- subsequent to receiving the first data via the first unlicensed carrier, receiving, by the second device from the first device via the second unlicensed carrier, control signaling used to indicate the retransmitted data, wherein the control signaling includes a modulation and coding scheme (MCS) field that indicates a modulation scheme for the data retransmitted via the second unlicensed carrier and that the data is retransmitted via the second unlicensed carrier, wherein the MCS field can be populated with any one of 32 possible values, wherein a first plurality of sequential values of the MCS field in the range of [0, 31−N] corresponds to a first predetermined modulation scheme, wherein a second plurality of sequential values of the MCS field in the range of [0, 31−N] corresponds to a second predetermined modulation scheme, wherein each of the first plurality of sequential values corresponds to a respective carrier of a plurality of carriers according to a sequence, wherein each of the second plurality of sequential values corresponds to a respective carrier of the plurality of carriers according to the sequence such that a first value in the first plurality of sequential values and a first value in the second plurality of sequential values correspond to a first predetermined carrier, and such that a second value in the first plurality of sequential values and a second value in the second plurality of sequential values correspond to a second predetermined carrier.
1 more element
A first device, comprising:
- a processor;
- a memory;
- a bus;
- and
- a transmitter,
- the processor, the memory, and the transmitter being connected to, and being configured to communicate with, each other using the bus, and
- the processor being configured to:
- transmit, using the transmitter, data to a second device using a first unlicensed carrier;
- retransmit, using the transmitter, the data to the second device using a second unlicensed carrier that is different than the first unlicensed carrier;
- and
- send, to the second device via the second unlicensed carrier and subsequent to the transmission of the data using the first unlicensed carrier, control signaling used to indicate the data, wherein the control signaling includes a modulation and coding scheme (MCS) field that indicates a modulation scheme for the data retransmitted via the second unlicensed carrier and that the data is retransmitted via the second unlicensed carrier, wherein the MCS field can be populated with any one of 32 possible values, wherein a first plurality of sequential values of the MCS field in the range of [0, 31−N] corresponds to a first predetermined modulation scheme, wherein a second plurality of sequential values of the MCS field in the range of [0, 31−N] corresponds to a second predetermined modulation scheme, wherein each of the first plurality of sequential values corresponds to a respective carrier of a plurality of carriers according to a sequence, wherein each of the second plurality of sequential values corresponds to a respective carrier of the plurality of carriers according to the sequence such that a first value in the first plurality of sequential values and a first value in the second plurality of sequential values correspond to a first predetermined carrier, and such that a second value in the first plurality of sequential values and a second value in the second plurality of sequential values correspond to a second predetermined carrier.
8 more elements
Dependencies are inferred from the claim text.