Granted Patent B2

US 12,659,948 · App. 17/965,594 · Granted Jun 16, 2026

Inventors: Linxi Hu (Shenzhen, CN); Nan Zhang (Shenzhen, CN); Zhen Yang (Shenzhen, CN); Jianqiang Dai (Shenzhen, CN)

Assignee: ZTE Corporation

H04W72/1263H04L1/0003H04L1/08H04W72/23

Abstract

Claims (41)

1 . A method, comprising:

generating, by a wireless communication node, downlink control information (DCI) including a field comprising a first indicator, the first indicator comprising at least one of a change in a value of a modulation and coding scheme (MCS) or a repetition number (RN);

transmitting, by the wireless communication node, the DCI including the first indicator included in the field to a wireless communication device, the first indicator indicative of whether a scheduled data transmission is to be a retransmission of a most recent data transmission; and

determining, by the wireless communication node, a valid time interval, and that a time interval between at least one of:

respective transmit times or respective receive times of a first data transmission and a second data transmission, or

a transmit time of a first DCI and a transmit time of a second DCI is smaller than or equal to the valid time interval.

2 . The method of claim 1 , comprising transmitting, by the wireless communication node, a second indicator to the wireless communication device, the second indicator including a plurality of constraints.

3 . The method of claim 2 , comprising transmitting, by the wireless communication node, the second indicator via at least one of a radio resource control (RRC) configuration or a media access control control element (MAC CE).

4 . The method of claim 2 , wherein the second indicator comprises at least one of a valid time interval, a retransmission threshold, or a retransmission interval.

5 . The method of claim 2 , further comprising:

causing the wireless communication device to determine whether the plurality of constraints are satisfied; and

receiving, by the wireless communication node from the wireless communication device, the scheduled data transmission as the retransmission or a new transmission when the plurality of constraints are satisfied, and as the new transmission when the plurality of constraints are incompletely satisfied.

6 . The method of claim 2 , further comprising transmitting, by the wireless communication node to the wireless communication device, the scheduled data transmission as the retransmission or a new transmission when the plurality of constraints are satisfied, and as the new transmission when the plurality of constraints are incompletely satisfied.

7 . The method of claim 1 , comprising determining, by the wireless communication node, whether the scheduled data transmission is the retransmission of the most recent data transmitted or an N-th previous data transmitted.

8 . The method of claim 1 , comprising:

determining, by the wireless communication node, that the MCS has changed from a first scheme for the most recent data transmission, to a second scheme for the scheduled data transmission; and

determining, by the wireless communication node, whether the scheduled data transmission is the retransmission, responsive to a maximum transport block size of the second scheme being larger than or equal to an actual transport block size of a most recent data transmission corresponding to the first scheme.

9 . The method of claim 1 , comprising determining, by the wireless communication node, that a retransmission count associated with data for the scheduled data transmission is within a retransmission threshold.

10 . A method, comprising:

receiving, by a wireless communication device from a wireless communication node, downlink control information (DCI) including a field comprising a first indicator, the first indicator comprising at least one of a change in a value of a modulation and coding scheme (MCS) or a repetition number (RN);

determining, by the wireless communication device according to the first indicator included in the field, whether a scheduled data transmission is to be a retransmission of a most recent data transmission; and

determining, by the wireless communication device, a valid time interval, and that a time interval between at least one of:

respective transmit times or respective receive times of a first data transmission and a second data transmission, or

a transmit time of a first DCI and a transmit time of a second DCI is smaller than or equal to the valid time interval.

11 . The method of claim 10 , comprising receiving, by the wireless communication device, a second indicator from the wireless communication node, the second indicator including a plurality of constraints.

12 . A wireless communication node, comprising:

at least one processor configured to:

generate downlink control information (DCI) including a field comprising a first indicator, the first indicator comprising at least one of a change in a value of a modulation and coding scheme (MCS) or a repetition number (RN);

transmit, via a transmitter, the DCI including the first indicator included in the field to a wireless communication device, the first indicator indicative of whether a scheduled data transmission is to be a retransmission of a most recent data transmission; and

determine a valid time interval, and that a time interval between at least one of:

respective transmit times or respective receive times of a first data transmission and a second data transmission, or

a transmit time of a first DCI and a transmit time of a second DCI is smaller than or equal to the valid time interval.

13 . The wireless communication node of claim 12 , wherein the at least one processor is further configured to transmit, via the transmitter to the wireless communication device, a second indicator including a plurality of constraints.

14 . A wireless communication device, comprising:

at least one processor configured to:

receive, via a receiver from a wireless communication node, downlink control information (DCI) including a field comprising a first indicator, the first indicator comprising at least one of a change in a value of a modulation and coding scheme (MCS) or a repetition number (RN);

determine, according to the first indicator included in the field, whether a scheduled data transmission is to be a retransmission of a most recent data transmission; and

determine a valid time interval, and that a time interval between at least one of:

respective transmit times or respective receive times of a first data transmission and a second data transmission, or

a transmit time of a first DCI and a transmit time of a second DCI is smaller than or equal to the valid time interval.

15 . The wireless communication device of claim 14 , wherein the at least one processor is further configured to receive, via the receiver from the wireless communication node, a second indicator including a plurality of constraints.

Assignments (1)

Continuity (2)

References Cited (48)