# US 12,015,482 B2 · Configuration of ultra reliable low latency communication

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- Number: US 12,015,482 B2
- Document ID: US12015482B2
- Status: Granted
- Kind: B2
- Application number: 17/461,054
- Filed: 2021-08-30
- Published: 2021-12-16
- Granted: 2024-06-18
- Earliest claimed: 2018-06-15
- Assignees: FG Innovation Company Limited
- Applicants: FG Innovation Company Limited
- Inventors: Chia-Hung Wei; Chie-Ming Chou; Hung-Chen Chen
- Web page: https://patentgrep.com/patent/US12015482B2

## CPC

- H04L 1/007: {Unequal error protection (for format H04L1/0078; for codes per se H03M13/35)}
- H04L 1/0003: {by switching between different modulation schemes}
- H04L 1/0016: {involving special memory structures, e.g. look-up tables}
- H04L 1/0061: {Error detection codes}
- H04W 72/1273: of downlink data flows
- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- H04W 76/11: Allocation or use of connection identifiers
- H04W 76/15: Setup of multiple wireless link connections
- H04L 1/0009: {by adapting the channel coding (H04L1/1812 takes precedence)}
- 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

Methods, apparatuses, and computer-readable media are described for configuring Ultra Reliable Low Latency Communication (URLLC) simultaneous transmissions, which can be used to enhance network performance and/or to enhance procedures within the UE to achieve more efficient operations. For example, techniques are described for determining which modulation coding scheme (MCS) table to apply based on various factors. Different techniques are also described for configuring user equipment (UE) with an RNTI based on different considerations.

## Claims

### Claim 1

A method, comprising:
receiving a downlink radio resource control (RRC) message, the RRC message including an information element (IE);
using the IE to configure a cell group and a radio network temporary identifier (RNTI), the RNTI being configured for one or more cells within the cell group;
receiving information from a physical downlink control channel (PDCCH), the information including downlink control information (DCI), wherein the DCI includes a set of cyclic redundancy check (CRC) bits that are scrambled with the RNTI, and indicates an uplink grant for the one or more cells within the cell group;
applying a modulation coding scheme (MCS) table to the uplink grant as a result of the RNTI being configured using the IE;
receiving a downlink data scheduling for the one or more cells within the cell group; and
applying an RNTI-based MCS determination rule to the downlink data scheduling as a result of the RNTI being configured using the IE.

### Claim 2 (depends on 1)

The method of claim 1, further comprising:
receiving second information from the PDCCH,
wherein the second information includes a second DCI,
the second DCI includes another set of CRC bits that are not scrambled with the RNTI, and
the second DCI includes a second uplink grant.

### Claim 3 (depends on 2)

The method of claim 2, further comprising applying another MCS table to the second uplink grant.

### Claim 4 (depends on 1)

The method of claim 1, wherein the RNTI is a Modulation Coding Scheme Cell-RNTI (MCS-C-RNTI).

### Claim 5

An electronic device, comprising:
one or more processors; and
one or more non-transitory computer-readable media storing one or more instructions that, when executed by at least one of the one or more processors, cause the electronic device to:
receive a downlink radio resource control (RRC) message, the RRC message including an information element (IE);
use the IE to configure a cell group and a radio network temporary identifier (RNTI), the RNTI being configured for one or more cells within the cell group;
receive information from a physical downlink control channel (PDCCH), the information including downlink control information (DCI), wherein the DCI includes a set of cyclic redundancy check (CRC) bits that are scrambled with the RNTI, and indicates an uplink grant for the one or more cells within the cell group;
apply a modulation coding scheme (MCS) table to the uplink grant as a result of the RNTI being configured using the IE;
receive a downlink data scheduling for the one or more cells within the cell group; and
apply an RNTI-based MCS determination rule to the downlink data scheduling as a result of the RNTI being configured using the IE.

### Claim 6 (depends on 5)

The system of claim 5, wherein the one or more instructions, when executed by the at least one of the one or more processors, further cause the electronic device to:
receive second information from the PDCCH,
wherein the second information includes a second DCI,
the second DCI includes another set of CRC bits that are not scrambled with the RNTI, and
the second DCI includes a second uplink grant.

### Claim 7 (depends on 6)

The system of claim 6, wherein the instructions further cause the system to apply another MCS table to the second uplink grant.

### Claim 8 (depends on 5)

The system of claim 5, wherein the RNTI is a Modulation Coding Scheme Cell-RNTI (MCS-C-RNTI).

### Claim 9

A non-transitory computer-readable medium storing one or more instructions that, when executed by one or more processors of a device, cause the device to:
receive a downlink radio resource control (RRC) message, the RRC message including an information element (IE);
use the IE to configure a cell group and a radio network temporary identifier (RNTI), the RNTI being configured for one or more cells within the cell group;
receive information from a physical downlink control channel (PDCCH), information including downlink control information (DCI), wherein the DCI includes a set of cyclic redundancy check (CRC) bits that are scrambled with the RNTI, and indicates an uplink grant for the one or more cells within the cell group;
apply a modulation coding scheme (MCS) table to the uplink grant as a result of the RNTI being configured using the IE;
receive a downlink data scheduling for the one or more cells within the cell group; and
apply an RNTI-based MCS determination rule to the downlink data scheduling as a result of the RNTI being configured using the IE.

### Claim 10 (depends on 9)

The non-transitory computer-readable medium of claim 9, wherein the one or more instructions, when executed by the one or more processors of the device, further cause the device to:
receive second information from the PDCCH,
wherein the second information includes a second DCI,
the second DCI includes another set of CRC bits that are not scrambled with the RNTI, and
the second DCI includes a second uplink grant.

### Claim 11 (depends on 10)

The non-transitory computer-readable medium of claim 10, wherein the executable instructions further cause the computer system to apply another MCS table to the second uplink grant.

### Claim 12 (depends on 9)

The non-transitory computer-readable medium of claim 9, wherein the RNTI is a Modulation Coding Scheme Cell-RNTI (MCS-C-RNTI).