# US 2021/0243807 A1 · Method, system and apparatus for new radio bandwidth part operations

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- Number: US 2021/0243807 A1
- Document ID: US20210243807A1
- Status: Published application
- Kind: A1
- Application number: 17/053,990
- Filed: 2018-05-14
- Published: 2021-08-05
- Earliest claimed: 2018-05-14
- Assignees: Nokia Technologies Oy
- Applicants: Nokia Technologies Oy
- Inventors: Kari Juhani HOOLI; Esa Tapani TIIROLA; Timo Erkki LUNTTILA; Karol SCHOBER
- Web page: https://patentgrep.com/patent/US20210243807A1

## CPC

- H04L 47/76: using dynamic resource allocation, e.g. in-call renegotiation requested by the user or requested by the network in response to changing network conditions
- H04W 74/0816: with collision avoidance
- H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA
- H04W 74/002: {Transmission of channel access control information}
- H04W 8/04: Registration at HLR or HSS [Home Subscriber Server]
- H04W 28/02: Traffic management, e.g. flow control or congestion control
- H04W 74/0808: using carrier sensing, e.g. carrier sense multiple access [CSMA]
- 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)

## Abstract

An apparatus comprising means for: receiving a first bandwidth part configuration caused to support dynamic adaptation of transmission bandwidth part in listen before talk communication systems, the first bandwidth part configuration comprising at least two bandwidth parts: a first bandwidth part and at least one associated temporal bandwidth part; determining which of the at least two bandwidth parts is used for a transmission burst; determining for the transmission burst a second, temporal, bandwidth part configuration caused to determine the transmission parameters for the transmission burst based on the at least one associated temporal bandwidth part and the determining which of the at least two bandwidth parts is used for the transmission burst.

## Claims

### Claim at position 1

1-16. (canceled)

### Claim 17

An apparatus comprising means for:
receiving a first bandwidth part configuration caused to support dynamic adaptation of transmission bandwidth part in listen before talk communication systems, the first bandwidth part configuration comprising at least two bandwidth parts: a first bandwidth part and at least one associated temporal bandwidth part;
determining which of the at least two bandwidth parts is used for a transmission burst;
determining for the transmission burst a second, temporal, bandwidth part configuration caused to determine the transmission parameters for the transmission burst based on the at least one associated temporal bandwidth part and the determining which of the at least two bandwidth parts is used for the transmission burst.

### Claim 18 (depends on 17)

The apparatus as claimed in claim 17, wherein the at least two bandwidth parts at least partially overlap in frequency.

### Claim 19 (depends on 17)

The apparatus as claimed in claim 17, wherein a bandwidth of each of the at least one associated temporal bandwidth parts is less than the bandwidth of the first bandwidth part.

### Claim 20 (depends on 17)

The apparatus as claimed in claim 17, wherein the means are further configured for generating the second temporal bandwidth part configuration from the first bandwidth part configuration by modifying first bandwidth part configuration parameters.

### Claim 21 (depends on 20)

The apparatus as claimed in claim 20, wherein the means for modifying the first bandwidth part configuration parameters comprises means for performing at least one of:
truncating;
padding;
masking; and
shifting, the configuration parameter values or configuration parameter ranges of the first bandwidth part configuration.

### Claim 22 (depends on 17)

The apparatus as claimed in claim 17, wherein the means is further configured for:
receiving at least one other bandwidth part configuration, and
determining which of the at least two received bandwidth part configurations is active,
wherein the means for determining which of the at least two received bandwidth part configurations is active is based on one of:
a radio resource control signalling;
a received indicator within a downlink assignment;
a received indicator within an uplink grant; and
a first inactivity timer, the expiration of the inactivity timer indicating the active bandwidth part configuration is a default bandwidth part configuration.

### Claim 23 (depends on 17)

The apparatus as claimed in claim 17, wherein the means for determining which of the at least two bandwidth parts is used for a transmission burst is further based on at least one of:
at least one received signal from a further apparatus; and
a determination of the proceeding transmission bandwidth part configuration or proceeding transmission bandwidth part.

### Claim 24 (depends on 17)

The apparatus as claimed in claim 17, wherein the first bandwidth configuration is active when the second bandwidth configuration is employed.

### Claim 25 (depends on 17)

The apparatus as claimed in any of claim 17, wherein the means for are further configured for determining during the transmission burst a second, temporal, bandwidth part configuration caused to determine transmission parameters for the succeeding transmission.

### Claim 26 (depends on 25)

The apparatus as claimed in claim 25, wherein the means for determining during the transmission burst a second, temporal, bandwidth part configuration caused to determine transmission parameters for the succeeding transmission burst are configured for determining during the transmission a second, temporal, bandwidth part configuration caused to determine transmission parameters for the succeeding transmission part based on one of:
determining which of the at least two bandwidth parts is active during the succeeding transmission burst;
determining which of the at least two bandwidth parts are active after a determined inactivity time period determined by a second inactivity timer; and
a received indicator controlling the apparatus to use the same second, temporal, bandwidth part configuration.

### Claim 27 (depends on 17)

The apparatus as claimed in claim 17, wherein the means is further configured for:
receiving a signal during the transmission burst; and
transmitting a further signal during the transmission burst.

### Claim 28

An apparatus comprising means for:
transmitting to a further apparatus a first bandwidth part configuration caused to support dynamic adaptation of transmission bandwidth part in listen before talk communication systems, the first bandwidth part configuration comprising at least two bandwidth parts: a first bandwidth part and at least one associated temporal bandwidth part, wherein the further apparatus is caused to determine which of the at least two bandwidth parts is used for a transmission burst and determine for the transmission burst a second, temporal, bandwidth part configuration such that the further apparatus is caused to determine the transmission parameters for the transmission burst based on the at least one associated temporal bandwidth part and the determining which of the at least two bandwidth parts is used for the transmission burst.

### Claim 29 (depends on 28)

The apparatus as claimed in claim 28, wherein the means is further configured for:
selecting one of the first bandwidth part configuration and at least one other bandwidth part configuration;
determining transmission parameters for a transmission burst between the apparatus and the further apparatus based on the selected bandwidth part configuration; and
transmitting to the further apparatus the at least one other bandwidth part configuration, wherein the further apparatus is caused to determine which of the at least two received bandwidth part configurations is active.

### Claim 30 (depends on 28)

The apparatus as claimed in claim 28, wherein the means is further configured for transmitting at least one further signal caused to enable the further apparatus to determine which of the at least two bandwidth parts is used for a transmission burst.

### Claim 31

A method comprising:
receiving a first bandwidth part configuration caused to support dynamic adaptation of transmission bandwidth part in listen before talk communication systems, the first bandwidth part configuration comprising at least two bandwidth parts: a first bandwidth part and at least one associated temporal bandwidth part;
determining which of the at least two bandwidth parts is used for a transmission burst;
determining for the transmission burst a second, temporal, bandwidth part configuration caused to determine the transmission parameters for the transmission burst based on the at least one associated temporal bandwidth part and the determining which of the at least two bandwidth parts is used for the transmission burst.

### Claim 32

A method comprising:
transmitting to an apparatus a first bandwidth part configuration caused to support dynamic adaptation of transmission bandwidth part in listen before talk communication systems, the first bandwidth part configuration comprising at least two bandwidth parts: a first bandwidth part and at least one associated temporal bandwidth part, wherein the apparatus is caused to determine which of the at least two bandwidth parts is used for a transmission burst and determine for the transmission burst a second, temporal, bandwidth part configuration such that the apparatus is caused to determine the transmission parameters for the transmission burst based on the at least one associated temporal bandwidth part and the determining which of the at least two bandwidth parts is used for the transmission burst.
