# US 2021/0345250 A1 · Configuration restriction for radio frequency operation for shortened transmission time interval patterns

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- Number: US 2021/0345250 A1
- Document ID: US20210345250A1
- Status: Published application
- Kind: A1
- Application number: 17/376,855
- Filed: 2021-07-15
- Published: 2021-11-04
- Earliest claimed: 2016-11-04
- Applicants: Telefonaktiebolaget LM Ericsson (publ)
- Inventors: Mårten SUNDBERG; Daniel CHEN LARSSON; Laetitia FALCONETTI; Muhammad KAZMI; Imadur RAHMAN
- Web page: https://patentgrep.com/patent/US20210345250A1

## CPC

- H04L 5/0028: {Variable division (indication of the divided channel H04L5/0092)}
- H04W 52/0245: {according to signal strength}
- H04L 5/0042: {Intra-user or intra-terminal allocation}
- H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH}
- H04L 5/0064: {Rate requirement of the data, e.g. scalable bandwidth, data priority}
- H04L 5/0089: {due to addition or removal of users or terminals}
- H04L 5/0092: {Indication of how the channel is divided}
- H04W 52/0216: {using a pre-established activity schedule, e.g. traffic indication frame}
- H04L 5/0032: {Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation}
- 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, network nodes and wireless devices configured for resource allocation to a wireless device are disclosed. According to one aspect, a method includes selecting at least one of a common bandwidth scheme and a common power scheme. If the selected at least one scheme includes a common bandwidth scheme, a common bandwidth to be used by the wireless device for transmission of two data channels in two successive short transmission time intervals, sTTIs, that share a common demodulation reference signal, DMRS, is determined. An indication of the common bandwidth to the wireless device to enable the wireless device to set the bandwidth of the two data channels to a common bandwidth value is sent. If the selected at least one scheme includes a common power scheme, then a common power control command to control an output power to be set by the wireless device for two data channels in two successive sTTI, that share a common DMRS is determined. The common power control command to the wireless device to enable the wireless device to set the output power of the two data channels to a common power value is sent.

## Claims

### Claim 1

A method in a network node for resource allocation for transmissions of a wireless device, the method comprising:
determining a common bandwidth to be used by the wireless device for transmission of two channels in two successive transmission time intervals, TTIs, that share a common reference signal, RS;
sending an indication of the common bandwidth to the wireless device to enable the wireless device to set the bandwidth of the two channels to a common bandwidth value;
determining a common power control command to control an output power to be set by the wireless device for two channels in two successive TTIs, that share a common RS, and one of:
the common power control command is based on a function of a power level available at the wireless device, the function being one of a maximum, a minimum and an average;
the common power control command is autonomously determined by the network node based on one of a pre-defined rule, statistics and historical data; and
the common power control command establishes a maximum power and instructs the wireless device not to exceed the maximum power when establishing the common power value; and
sending the common power control command to the wireless device to enable the wireless device to set the output power of the two channels to a common power value.

### Claim 2 (depends on 1)

The method of claim 1, wherein the channels transmitted in two successive TTIs are physical uplink shared channels, PUSCH.

### Claim 3 (depends on 1)

The method of claim 1, wherein the common bandwidth is greater than a bandwidth of one of the two channels having a greatest bandwidth.

### Claim 4 (depends on 1)

The method of claim 1, wherein the common bandwidth encompasses a combined bandwidth of the two successive short TTIs.

### Claim 5 (depends on 1)

The method of claim 1, wherein the common bandwidth is selected to ensure a same power per allocated resource block.

### Claim 6 (depends on 1)

The method of claim 1, wherein the indication of the common bandwidth includes a bandwidth of the RS that encompasses the bandwidth of the two successive TTIs.

### Claim 7 (depends on 1)

The method of claim 1, wherein the common power control command instructs the wireless device to set the output power of the two channels to a highest power of a plurality of power levels.

### Claim 8 (depends on 1)

The method of claim 1, wherein the common power control command is based on at least one of a signal level of a received uplink signal and a mapping between the common power control command to a change in phase of a received uplink signal.

### Claim 9 (depends on 1)

The method of claim 1, wherein the RS is any of a demodulation reference signal, DMRS, and a sounding reference signal, SRS.

### Claim 10

A network node for resource allocation for transmissions of a wireless device, the network node comprising:
processing circuitry configured to:
determine a common bandwidth to be used by the wireless device for transmission of two channels in two successive transmission time intervals, TTIs, that share a common reference signal, RS;
send an indication of the common bandwidth to the wireless device to enable the wireless device to set the bandwidth of the two channels to a common bandwidth value;
determine a common power control command to control an output power to be set by the wireless device for two channels in two successive TTIs that share a common RS, and one of:
the common power control command is based on a function of a power level available at the wireless device, the function being one of a maximum, a minimum and an average;
the common power control command is autonomously determined by the network node based on one of a pre-defined rule, statistics and historical data; and
the common power control command establishes a maximum power and instructs the wireless device not to exceed the maximum power when establishing the common power value; and
send the common power control command to the wireless device to enable the wireless device to set the output power of the two channels to a common power value.

### Claim 11 (depends on 10)

The network node of claim 10, wherein the two channels transmitted in two successive sTTIs are physical uplink shared channels, PUSCH.

### Claim 12 (depends on 10)

The network node of claim 10, wherein the common bandwidth is greater than a bandwidth of one of the two channels having a greatest bandwidth.

### Claim 13 (depends on 10)

The network node of claim 10, wherein the common bandwidth encompasses a combined bandwidth of the two successive TTIs.

### Claim 14 (depends on 10)

The network node of claim 10, wherein the common bandwidth is selected to ensure a same power per allocated resource block.

### Claim 15

A method in a wireless device for uplink transmission of signals, the method comprising:
receiving a bandwidth indication and a common power control command, the common power control is one of:
based on a function of a power level available at the wireless device, the function being one of a maximum, a minimum and an average;
autonomously determined by the network node based on one of a pre-defined rule, statistics and historical data; and
establishing a maximum power and instructing the wireless device not to exceed the maximum power when establishing the common power value;
determining a common bandwidth based on the bandwidth indication to be used by the wireless device for transmission of two channels in two successive transmission time intervals, TTIs, that share a common reference signal, RS; and
controlling an output power based on the common power control command to be set by the wireless device for two channels in two successive TTIs that share a common RS.

### Claim 16 (depends on 15)

The method of claim 15, wherein the two channels are physical uplink shared channels, PUSCH.

### Claim 17 (depends on 15)

The method of claim 15, wherein the common bandwidth encompasses a combined bandwidth of the two successive TTIs.

### Claim 18 (depends on 15)

The method of claim 15, wherein the common bandwidth is selected to ensure a same power per allocated resource block.

### Claim 19 (depends on 15)

The method of claim 15, wherein a TTI is any of: a short TTI, sTTI, slot, and a mini-slot.

### Claim 20 (depends on 15)

The method of claim 15, wherein the RS is any of a demodulation reference signal, DMRS, and a sounding reference signal, SRS.
