# US 2019/0173634 A1 · Measurement Gap Configuration

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- Number: US 2019/0173634 A1
- Document ID: US20190173634A1
- Status: Published application
- Kind: A1
- Application number: 16/255,188
- Filed: 2019-01-23
- Published: 2019-06-06
- Earliest claimed: 2017-11-16
- Assignees: Telefonaktiebolaget LM Ericsson (publ)
- Applicants: Telefonaktiebolaget LM Ericsson (publ)
- Inventors: Oumer Teyeb; Icaro L. J. da Silva; Rui Fan; Helka-Liina Määttanen
- Web page: https://patentgrep.com/patent/US20190173634A1

## CPC

- H04L 5/0032: {Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation}
- H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports}
- H04B 7/022: Site diversity; Macro-diversity (using two or more spaced independent antennas H04B7/04)
- H04W 36/0069: {in case of dual connectivity, e.g. decoupled uplink/downlink}
- H04W 36/0088: {Scheduling hand-off measurements}
- H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA
- H04W 72/542: using measured or perceived quality
- H04W 88/02: Terminal devices
- H04W 88/06: adapted for operation in multiple networks {or having at least two operational modes}, e.g. multi-mode terminals
- 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)
- H04B: TRANSMISSION

## Abstract

According to certain embodiments, disclosed is a method performed by a master node, MN, (160A) for measurement gap configuration. The method may include operating in a dual connectivity, DC, configuration with a secondary node, SN, (160B) and a wireless device (110). The method may further include configuring the wireless device (110) with a measurement gap configuration, wherein the measurement gap configuration allows the wireless device (110) to measure a first frequency range, FR1, and a second frequency range, FR2.

## Claims

### Claim 1

A master node, MN, for measurement gap configuration, the method comprising:
processing circuitry configured to:
operate in a dual connectivity, DC, configuration with a secondary node, SN, and a wireless device; and
configure a measurement gap configuration for the wireless device, wherein the measurement gap configuration allows the wireless device to measure a first frequency range, FR1, and a second frequency range, FR2; and
interface circuitry operably coupled to the processing circuitry, the interface circuitry configured to transmit the measurement gap configuration to the wireless device.

### Claim 2 (depends on 1)

The MN of claim 1, wherein the interface circuitry is further configured to communicate to the SN, that the SN does not have to setup the measurement gap configuration for the wireless device.

### Claim 3 (depends on 1)

The MN of claim 1, wherein the processing circuitry is configured to determine that the wireless device uses a shared radio frequency, RF, chain for FR1 and FR2.

### Claim 4 (depends on 3)

The MN of claim 3, wherein the interface circuitry is further configured to communicate the measurement gap configuration to the SN, the communication including an indication that the measurement gap configuration is for both FR1 and FR2.

### Claim 5 (depends on 3)

The MN of claim 3, wherein the processing circuitry is further configured to change the measurement gap configuration of the wireless device to a new configuration; and the interface is further configured to communicate the new configuration to the SN.

### Claim 6 (depends on 3)

The MN of claim 3, wherein the processing circuitry is further configured to:
determine that wireless device will only measure FR1; and
configure the wireless device with a measurement gap configuration for FR1 frequencies.

### Claim 7 (depends on 3)

The MN of claim 3, wherein the processing circuitry is further configured to:
determine that the wireless device will only measure FR2; and
configure the wireless device with a measurement gap configuration for FR2 frequencies.

### Claim 8 (depends on 3)

The MN of claim 3, wherein the processing circuitry is further configured to:
determine that wireless device will measure both FR1 and FR2; and
configure the wireless device with a measurement gap configuration for both FR1 and FR2.

### Claim 9 (depends on 1)

The MN of claim 1, wherein the processing circuitry is further configured to determine that a wireless device uses a separate radio frequency, RF, chain for FR1 and FR2.

### Claim 10 (depends on 9)

The MN of claim 9, wherein the interface circuitry is further configured to communicate the first measurement gap configuration for FR1 and the second measurement gap configuration for FR2 to the SN.

### Claim 11 (depends on 9)

The MN of claim 9, wherein the processing circuitry is further configured to change the first measurement gap configuration and/or the second measurement gap configuration to a new configuration, and wherein the interface circuitry is further configured to communicate the new configuration to the SN.

### Claim 12 (depends on 9)

The MN of claim 9, wherein the interface circuitry is further configured to receive a message from the SN, the message requesting that the MN modify at least one of the first measurement gap configuration for FR1 and the second measurement gap configuration for FR2 of the wireless device.

### Claim 13 (depends on 9)

The MN of claim 9, wherein the interface circuitry is further configured to receive a notification from the SN, the notification informing the MN that the SN added or removed a serving cell that is using one or more frequencies in FR1 and/or FR2.

### Claim 14

A master node, MN, for measurement gap configuration, the MN comprising:
processing circuitry configured to:
operate in a dual connectivity, DC, configuration with a secondary node, SN; and
configure a first measurement gap configuration for a first frequency range, FR1, only, wherein the first measurement gap allows the wireless device to measure FR1; and
interface circuitry operably coupled to the processing circuitry, the interface circuitry configured to transmit the first measurement gap configuration to the wireless device.

### Claim 15 (depends on 14)

The MN of claim 14, wherein the processing circuitry is further configured to determine that a wireless device uses a separate radio frequency (RF) chain for FR1 and a second frequency range, FR2.

### Claim 16 (depends on 15)

The MN of claim 15, wherein the interface circuitry is further configured to:
communicate to the SN that the wireless device uses the separate RF chain for FR1 and FR2 and that the SN is to configure the measurement gap configuration for FR2; and/or
communicate the measurement gap configuration for FR1 to the SN.

### Claim 17 (depends on 14)

The MN of claim 14, wherein the processing circuitry is further configured to change the measurement gap configuration for FR1 to a new configuration; and the interface circuitry is further configured to communicate the new configuration to the SN.

### Claim 18 (depends on 14)

The MN of claim 14, wherein the interface circuitry is further configured to:
receive a first notification from the SN, the first notification informing the MN that the SN modified the measurement configuration of wireless device for FR1; and/or
receive a second notification from the SN, the second notification informing the MN that the SN added or removed a serving cell that was using a frequency in FR1.

### Claim 19

A secondary node, SN, for measurement gap configuration, the SN comprising:
processing circuitry configured to operate in a dual connectivity, DC, configuration with a master node, MN, and a wireless device; and
interface circuitry operably coupled to the processing circuitry, the interface circuitry configured to receive a message from the MN, the message associated with a configuration of at least one of a first measurement gap configuration for a first frequency range (FR1) and a second measurement gap configuration for a second frequency range (FR2) for the wireless device.

### Claim 20 (depends on 19)

The SN of claim 19, wherein the message indicates that the SN does not have to setup the measurement gap configuration for either FR1 or FR2 for the wireless device.

### Claim 21 (depends on 19)

The SN of claim 19, wherein the interface circuitry is further configured to receive a message from MN, the message indicating the measurement gap configuration is for both FR1 and FR2.

### Claim 22 (depends on 19)

The SN of claim 19, wherein the message indicates that the wireless device uses a separate radio frequency (RF) chain for FR1 and FR2, and the interface circuitry is further configured to receive a notification from the MN that the SN is responsible for configuring the measurement gap configuration for FR2.

### Claim 23 (depends on 22)

The SN of claim 22, wherein the interface circuitry is further configured to receive the measurement gap configuration for FR1 from the MN.

### Claim 24 (depends on 19)

The SN of claim 19, wherein the processing circuitry interface circuitry is further configured to change the measurement gap configuration for FR2 to a new configuration and the interface circuitry is further configured to communicate the new configuration to the MN.

### Claim 25 (depends on 19)

The SN of claim 19, wherein the interface circuitry is further configured to receive a message from the MN, the message indicating a new configuration of the wireless device, wherein the new configuration comprises at least one of a changed measurement gap configuration for FR1 and a changed measurement gap configuration for FR2.

### Claim 26 (depends on 19)

The SN of claim 19, wherein the processing circuitry is further configured to determine a new configuration for at least one of the measurement gap configuration for FR1 and the measurement gap configuration for FR2, and the interface circuitry is configured to communicate a request to modify the measurement gap configuration of at least FR1 and FR2 to the MN.

### Claim 27

A wireless device for measurement gap configuration, the wireless device comprising:
processing circuitry configured to:
operate in a dual connectivity, DC, configuration with a master node, MN, and a secondary node, SN; and
operate using a radio frequency, RF, chain for a first frequency range, FR1, and a second frequency range, FR2; and
interface circuitry operably coupled to the processing circuitry, the interface circuitry configured to transmit capability information to the MN, the capability information indicating whether the wireless device supports a separate RF chain for FR1 and FR2 or whether the wireless device supports a shared RF chain for FR1 and FR2.

### Claim 28 (depends on 27)

The wireless device of claim 27, wherein the RF chain is a shared RF chain for FR1 and FR2, the interface circuitry further configured to receive a measurement gap configuration from the MN, the measurement gap configuration for both FR1 and FR2.

### Claim 29 (depends on 27)

The wireless device of claim 27, wherein the RF chain is a separate RF chain for FR1 and FR2, the interface circuitry further configured to receive a first measurement gap configuration for FR1 from the MN and a second measurement gap configuration for FR2 from the SN.

### Claim 30 (depends on 27)

The wireless device of claim 27, wherein the RF chain is a separate RF chain for FR1 and FR2, the interface circuitry further configured to receive a first measurement gap configuration for FR1 and a second measurement gap configuration for FR2 from the MN.
