# US 2020/0396704 A1 · Methods and apparatuses for user equipment measurement performance requirement determination

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- Number: US 2020/0396704 A1
- Document ID: US20200396704A1
- Status: Published application
- Kind: A1
- Application number: 16/975,378
- Filed: 2018-02-26
- Published: 2020-12-17
- Earliest claimed: 2018-02-26
- Assignees: Nokia Technologies Oy
- Applicants: Nokia Technologies Oy
- Inventors: Lars Dalsgaard; Li Zhang
- Web page: https://patentgrep.com/patent/US20200396704A1

## CPC

- H04W 56/001: {Synchronization between nodes}
- H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports}
- H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

Systems, methods, apparatuses, and computer program products for determining UE measurement performance in communication systems, such as NR, are provided. One method may include grouping configured carriers according to synchronization signal block measurement timing configuration (SMTC) to form carrier groups, distributing measurement gaps on the configured carriers according to an intra-frequency and inter-frequency gap sharing rule, and distributing the measurement gaps available for inter-frequency measurements among inter-frequency carrier groups according to the carrier groups with non-overlapping synchronization signal block measurement timing configuration (SMTC) or the carrier groups with overlapping synchronization signal block measurement timing configuration (SMTC) to create a distribution of the measurement gaps.

## Claims

### Claim at position 1

1-48. (canceled)

### Claim 49

An apparatus, comprising:
at least one processor; and
at least one memory comprising computer program code,
the at least one memory and computer program code configured, with the at least one processor, to cause the apparatus at least to
receive a synchronization signal block measurement timing configuration for each serving and inter-frequency carrier from a network, wherein the synchronization signal block measurement timing configuration indicates a presence of at least one synchronization signal block on a given carrier in time domain and a periodicity of the at least one synchronization signal block; and
discontinuously receive the at least one synchronization signal block in time intervals that are synchronized with measurement gaps; and
perform measurements of carriers in the measurement gaps based on the received at least one synchronization signal block.

### Claim 50 (depends on 49)

The apparatus according to claim 49, wherein the at least one memory and computer program code are further configured, with the at least one processor, to cause the apparatus at least to:
derive a required measurement performance of each carrier based on the received synchronization signal block measurement timing configuration.

### Claim 51 (depends on 50)

The apparatus according to claim 50, wherein the at least one memory and computer program code are further configured, with the at least one processor, to cause the apparatus at least to:
group configured carriers according to the received synchronization signal block measurement timing configuration to form carrier groups;
distribute measurement gaps on the configured carriers according to an intra-frequency and inter-frequency gap sharing rule; and
distribute the measurement gaps available for inter-frequency measurements among inter-frequency carrier groups according to the carrier groups with non-overlapping synchronization signal block measurement timing configuration or the carrier groups with overlapping synchronization signal block measurement timing configuration to create a distribution of the measurement gaps.

### Claim 52 (depends on 51)

The apparatus according to claim 51, wherein the at least one memory and computer program code are further configured, with the at least one processor, to cause the apparatus at least to:
assign a serving carrier to a first type of group;
assign inter-frequency carriers that have any overlapping synchronization signal block measurement timing configuration occasions with each other to a second type of group; and
assign any inter-frequency carrier that has no overlapping synchronization signal block measurement timing configuration occasions with any other inter-frequency carriers to a third type of group.

### Claim 53 (depends on 51)

The apparatus according to claim 51, wherein the at least one memory and computer program code are further configured, with the at least one processor, to cause the apparatus at least to:
define N as a ratio of longest synchronization signal block measurement timing configuration period and shortest synchronization signal block measurement timing configuration period among all carriers, F, in a group;
for each of N synchronization signal block measurement timing configuration occasions, determine a share of gaps among a group of carriers.

### Claim 54 (depends on 51)

The apparatus according to claim 51, wherein the at least one memory and computer program code are further configured, with the at least one processor, to cause the apparatus at least to:
for each of F carriers, calculate the available gap within the longest synchronization signal block measurement timing configuration period as G(fx)=S(fx,1)+S(fx,2)+ . . . +S(fx,N), where xϵ[1;F], which gives G(fx) as:
G(fx)=ΣNy=1S(fx,ny),
wherein S(fx,ny) denotes the share for the fx carrier at the ny synchronization signal block measurement timing configuration occasion; and
calculate a performance scaling of the fx carrier in the group as p(fx)/G(fx), wherein p(fx) denotes a ratio of the longest synchronization signal block measurement timing configuration period and the synchronization signal block measurement timing configuration period of fx carrier.

### Claim 55 (depends on 53)

The apparatus according to claim 53, wherein the at least one memory and computer program code are further configured, with the at least one processor, to cause the apparatus at least to:
determine an equal share for each carrier;
determine a proportional share for each carrier; or
determine an inverse proportional share for each carrier.

### Claim 56 (depends on 55)

The apparatus according to claim 55,
wherein the equal share provides that each carrier that has a synchronization signal block measurement timing configuration window present at the occasion gets a same share according to a number of carriers sharing the gap,
wherein the proportional share provides that a carrier with longer synchronization signal block measurement timing configuration period gets a higher share of the gaps to be shared, and a carrier with a shorter synchronization signal block measurement timing configuration period gets a lower share of the gaps to be shared, and
wherein the inverse proportional share provides that a carrier with a longer synchronization signal block measurement timing configuration period gets a lower share, and a carrier with a shorter synchronization signal block measurement timing configuration period gets a higher share.

### Claim 57 (depends on 49)

The apparatus according to claim 49, wherein the at least one memory and computer program code are further configured, with the at least one processor, to cause the apparatus at least to receive an indication, from the network, of which type of sharing should be applied for the carriers in at least one of a fully or partially overlapping carrier group.

### Claim 58 (depends on 57)

The apparatus according to claim 57, wherein the type of sharing comprises at least one of equal sharing, proportional sharing, or inverse proportional sharing.

### Claim 59

An apparatus, comprising:
at least one processor; and
at least one memory comprising computer program code,
the at least one memory and computer program code configured, with the at least one processor, to cause the apparatus at least to
group configured carriers according to synchronization signal block measurement timing configuration to form carrier groups;
distribute measurement gaps on the configured carriers according to an intra-frequency and inter-frequency gap sharing rule; and
distribute the measurement gaps available for inter-frequency measurements among inter-frequency carrier groups according to the carrier groups with non-overlapping synchronization signal block measurement timing configuration or the carrier groups with overlapping synchronization signal block measurement timing configuration to create a distribution of the measurement gaps.

### Claim 60 (depends on 59)

The apparatus according to claim 59, wherein the at least one memory and computer program code are further configured, with the at least one processor, to cause the apparatus at least to:
assign a serving carrier to a first group;
assign carriers that have overlapping synchronization signal block measurement timing configuration occasions with each other to a second group; and
assign an inter-frequency carrier that has no overlapping synchronization signal block measurement timing configuration occasions with other inter-frequency carriers to a third group.

### Claim 61 (depends on 59)

The apparatus according to claim 59, wherein the at least one memory and computer program code are further configured, with the at least one processor, to cause the apparatus at least to:
define N as a ratio of longest synchronization signal block measurement timing configuration period and shortest synchronization signal block measurement timing configuration among all carriers, F, in a group;
for each of N synchronization signal block measurement timing configuration occasions, determine a share of gaps among a group of carriers.

### Claim 62 (depends on 61)

The apparatus according to claim 61, wherein the at least one memory and computer program code are further configured, with the at least one processor, to cause the apparatus at least to:
determine an equal share for each carrier;
determine a proportional share for each carrier; or
determine an inverse proportional share for each carrier.

### Claim 63 (depends on 62)

The apparatus according to claim 62, wherein the equal share provides that each carrier that has a synchronization signal block measurement timing configuration window present at the occasion gets a same share according to a number of carriers sharing the gap,
wherein the proportional share provides that a carrier with longer synchronization signal block measurement timing configuration period gets a higher share of the gaps to be shared, and a carrier with a shorter synchronization signal block measurement timing configuration period gets a lower share of the gaps to be shared, and
wherein the inverse proportional share provides that a carrier with a longer synchronization signal block measurement timing configuration period gets a lower share, and a carrier with a shorter synchronization signal block measurement timing configuration period gets a higher share.

### Claim 64 (depends on 59)

The apparatus according to claim 59, wherein the at least one memory and computer program code are further configured, with the at least one processor, to cause the apparatus at least to determine measurement performance for the serving carrier by the gap sharing between intra-frequency and inter-frequency measurement gaps.

### Claim 65 (depends on 61)

The apparatus according to claim 61, wherein the at least one memory and computer program code are further configured, with the at least one processor, to cause the apparatus at least to signal, to at least one user equipment, the method used for determining the share for each carrier.

### Claim 66

A method, comprising:
receiving, at a user equipment, a synchronization signal block measurement timing configuration for each serving and inter-frequency carrier from a network, wherein the synchronization signal block measurement timing configuration indicates a presence of at least one synchronization signal block on a given carrier in time domain and a periodicity of the at least one synchronization signal block;
discontinuously receiving the at least one synchronization signal block in time intervals that are synchronized with measurement gaps; and
performing measurements of carriers in the measurement gaps based on the received at least one synchronization signal block.

### Claim 67 (depends on 66)

The method according to claim 66, further comprising:
deriving a required measurement performance of each carrier based on the received synchronization signal block measurement timing configuration.

### Claim 68 (depends on 66)

The method according to claim 66, further comprising receiving an indication, from the network, of which type of sharing should be applied for the carriers in at least one of a fully or partially overlapping carrier group.
