US 2016/0113000 A1 · METHOD FOR UPLINK DATA TRANSMISSION, TERMINAL, AND WIRELESS COMMUNICATION NODE

Abstract

Embodiments of the present invention relate to the communications field, and disclose a method for uplink data transmission, a terminal, and a wireless communication node, which can ensure that a HARQ mechanism between a terminal and a wireless communication node works normally. The method includes: determining, by a first wireless communication node, whether a terminal is within downlink coverage of a second wireless communication node; and when the first wireless communication node determines that the terminal is not within the downlink coverage of the second wireless communication node, instructing, by the first wireless communication node, the terminal to use a non-feedback mode; and/or instructing, by the first wireless communication node, the second wireless communication node to use a non-feedback mode.

Claims15

Dependent claims

A method for uplink data transmission in a wireless communication system including a first wireless communication node and a second wireless communication node both serve a terminal, wherein the first wireless communication node is a downlink serving node of the terminal, and the second wireless communication node is an uplink serving node of the terminal, the method comprising:

determining, by a first wireless communication node, whether a terminal is within downlink coverage of the second wireless communication node;
and
when the first wireless communication node determines that the terminal is not within the downlink coverage of the second wireless communication node:
instructing, by the first wireless communication node, the terminal to use a non-feedback mode in which the terminal does not retransmit to the second wireless communication node, uplink data that has been sent;
and/or
instructing, by the first wireless communication node, the second wireless communication node to use a non-feedback mode in which the second wireless does not receive, on a time-frequency resource allocated to the terminal, uplink data retransmitted from the terminal.

3 more elements

A wireless communication node in a wireless communication system including a first wireless communication node and a second wireless communication node both serve a terminal, wherein the wireless communication node is the first wireless communication node that is a downlink serving node of the terminal, and the second wireless communication node is an uplink serving node of the terminal, wherein the wireless communication node comprises:

a processor configured to determine whether the terminal is within downlink coverage of the second wireless communication node;
and
a transmitter coupled to the processor and configured to:
when the processor determines that the terminal is not within the downlink coverage of the second wireless communication node, transmit a message instructing the terminal to use a non-feedback mode in which the terminal does not retransmit to the second wireless communication node, uplink data that has been sent;
and/or transmit a message instructing the second wireless communication node to use a non-feedback mode in which the second wireless does not receive, on a time-frequency resource allocated to the terminal, uplink data retransmitted from the terminal.

2 more elements

A terminal served by a first wireless communication node which is a downlink serving node of the terminal and a second wireless communication node which is an uplink serving node of the terminal, wherein the terminal comprises:

a processor;
and
a transmitter, wherein
the processor is configured to determine use a non-feedback mode in which the terminal does not retransmit to the second wireless communication node uplink data that has been sent, when the terminal is not within the downlink coverage of the second wireless communication node;
and
the transmitter is configured to transmit uplink data to the second wireless communication node in the non-feedback mode.

3 more elements

Dependencies are inferred from the claim text.

Method for uplink data transmission, terminal, and wireless communication node

Life of this patent

Method for uplink data transmission, terminal, and wireless communication node

Life of this patent

Abstract

Claims15