# US 11,451,336 B2 · Repetition transmission method and apparatus, network device, and computer readable storage medium

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- Number: US 11,451,336 B2
- Document ID: US11451336B2
- Status: Granted
- Kind: B2
- Application number: 17/114,734
- Filed: 2020-12-08
- Published: 2021-03-25
- Granted: 2022-09-20
- Earliest claimed: 2018-08-10
- Assignees: Zte Corporation
- Applicants: Zte Corporation
- Inventors: Min Ren; Peng Hao; Shuqiang Xia; Jing Shi; Xianghui Han; Chunli Liang; Wei Lin
- Web page: https://patentgrep.com/patent/US11451336B2

## CPC

- H04L 1/0003: {by switching between different modulation schemes}
- H04L 1/08: by repeating transmission, e.g. Verdan system {(H04L1/1858 and H04L1/189 take precedence)}
- H04L 1/0009: {by adapting the channel coding (H04L1/1812 takes precedence)}
- H04L 1/1819: {with retransmission of additional or different redundancy}
- H04L 1/189: {Transmission or retransmission of more than one copy of a message}
- H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals}
- H04L 5/0094: {Indication of how sub-channels of the path are allocated}
- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- H04W 72/0446: Resources in time domain, e.g. slots or frames
- H04W 84/042: {Public Land Mobile systems, e.g. cellular systems}
- Y02D 30/70: in wireless communication networks
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE

## Abstract

Provided are a repeated transmission method and apparatus, a network device, and a storage medium. The method includes: determining a plurality of transmission occasions (TOs) for uplink data to be repeatedly transmitted; and in condition that at least one TO, among the plurality of TOs for the uplink data to be repeatedly transmitted, does not conflict with a transmission direction of a slot configuration, repeatedly transmitting the uplink data on the at least one TO.

## Claims

### Claim 1

A method of repeated transmission, comprising:
determining a plurality of transmission occasions (TOs), for uplink data to be repeatedly transmitted; and
in response to at least one TO, among the plurality of TOs for the uplink data to be repeatedly transmitted, being not conflicted with a transmission direction of a slot configuration, repeatedly transmitting the uplink data on the at least one TO,
wherein if the transmission direction of the slot configuration indicates N consecutive flexible (F) symbols, and an adjacent symbol before the N consecutive F symbols is a downlink (D) symbol, the uplink data is repeatedly transmitted from a time domain symbol corresponding to an M-th F symbol among the N consecutive F symbols, wherein M≤N, and first (M−1) F symbols among the N consecutive F symbols serve as a guard period, wherein N is a first number and M is a second number.

### Claim 2 (depends on 1)

The method of claim 1, wherein the repeatedly transmitting the uplink data on the at least one TO comprises:
in response to the plurality of TOs being not conflicted with the transmission direction of the slot configuration, transmitting the uplink data to be repeatedly transmitted from an earliest TO in a time domain that does not conflict with the transmission direction of the slot configuration.

### Claim 3 (depends on 1)

The method of claim 1, wherein each of the F symbols comprises a symbol that is flexibly configured in transmission direction.

### Claim 4 (depends on 3)

A device for repeated transmission, comprising at least one processor configured to implement the method of claim 3.

### Claim 5 (depends on 1)

The method of claim 1, wherein N is 1, 2 or 8.

### Claim 6 (depends on 5)

A device for repeated transmission, comprising at least one processor configured to implement the method of claim 5.

### Claim 7 (depends on 1)

The method of claim 1, wherein the slot configuration is obtained in at least one of following manners:
detecting a slot format indicator field in downlink control information (DCI); or
detecting a slot format indication command configured via radio resource control (RRC).

### Claim 8 (depends on 1)

The method of claim 1, wherein the repeatedly transmitting the uplink data on the at least one TO comprises: if at least one time domain symbol in each of the at least one TO does not conflict with the transmission direction of the slot configuration, performing rate matching on a non-conflicting time domain symbol in the each of the at least one TO.

### Claim 9 (depends on 1)

The method of claim 1, wherein repeatedly transmitting the uplink data on the at least one TO comprises:
detecting DCI to indicate a usage situation of the at least one TO.

### Claim 10 (depends on 1)

The method of claim 1, wherein the repeatedly transmitting the uplink data on the at least one TO further comprises at least one of:
not counting a TO in which a time domain symbol conflicts with the transmission direction of the slot configuration into a number of repeated transmissions of the uplink data, and continuing the repeated transmissions of the uplink data on a TO configured later;
repeatedly transmitting uplink data corresponding to a TO in which a time domain symbol conflicts with the transmission direction of the slot configuration on a preconfigured redundant TO; or
repeatedly transmitting the uplink data on a preconfigured TO which does not conflict with the transmission direction of the slot configuration.

### Claim 11 (depends on 1)

The method of claim 1, wherein the slot configuration comprises at least the D symbol, at least one uplink (U) symbol, and at least the N consecutive F symbols.

### Claim 12 (depends on 11)

A device for repeated transmission, comprising at least one processor configured to implement the method of claim 11.

### Claim 13

A method for receiving repeated transmission, comprising:
determining a plurality of transmission occasions (TOs) for uplink data to be repeatedly transmitted; and
in response to at least one TO, among the plurality of TOs for the uplink data to be repeatedly transmitted, being not conflicted with a transmission direction of a slot configuration, receiving repeatedly transmitted uplink data on the at least one TO,
wherein if the transmission direction of the slot configuration indicates N consecutive flexible (F) symbols, and an adjacent symbol before the N consecutive F symbols is a downlink (D) symbol, the uplink data is repeatedly transmitted from a time domain symbol corresponding to an M-th F symbol among the N consecutive F symbols, wherein M<N, and first (M−1) F symbols among the N consecutive F symbols serve as a guard period, wherein N is a first number and M is a second number.

### Claim 14 (depends on 13)

The method of claim 13, wherein each of the F symbols comprises a symbol that is flexibly configured in transmission direction.

### Claim 15 (depends on 13)

The method of claim 13, wherein N is 1, 2 or 8.

### Claim 16 (depends on 13)

The method of claim 13, wherein the slot configuration comprises at least the D symbol, at least one uplink (U) symbol, and at least the N consecutive F symbols.

### Claim 17 (depends on 1)

A device for repeated transmission, comprising at least one processor configured to implement the method of claim 1.

### Claim 18 (depends on 13)

A device for receiving repeated transmission, comprising at least one processor configured to implement the method of claim 13.

### Claim 19

A non-transitory computer readable storage medium storing instructions, which when executed by one or more processors can cause the one or more processors to:
determine a plurality of transmission occasions (TOs), for uplink data to be repeatedly transmitted; and
in response to at least one TO, among the plurality of TOs for the uplink data to be repeatedly transmitted, being not conflicted with a transmission direction of a slot configuration, repeatedly transmit the uplink data on the at least one TO,
wherein if the transmission direction of the slot configuration indicates N consecutive flexible (F) symbols, and an adjacent symbol before the N consecutive F symbols is a downlink (D) symbol, the uplink data is repeatedly transmitted from a time domain symbol corresponding to an M-th F symbol among the N consecutive F symbols, wherein M≤N, and first (M−1) F symbols among the N consecutive F symbols serve as a guard period, wherein N is a first number and M is a second number.

### Claim 20

A non-transitory computer readable storage medium storing instructions, which when executed by one or more processors can cause the one or more processors to:
determine a plurality of transmission occasions (TOs) for uplink data to be repeatedly transmitted; and
in response to at least one TO, among the plurality of TOs for the uplink data to be repeatedly transmitted, being not conflicted with a transmission direction of a slot configuration, receiving repeatedly transmit uplink data on the at least one TO,
wherein if the transmission direction of the slot configuration indicates N consecutive flexible (F) symbols, and an adjacent symbol before the N consecutive F symbols is a downlink (D) symbol, the uplink data is repeatedly transmitted from a time domain symbol corresponding to an M-th F symbol among the N consecutive F symbols, wherein M<N, and first (M−1) F symbols among the N consecutive F symbols serve as a guard period, wherein N is a first number and M is a second number.
