# US 10,484,886 B2 · Method for broadcast information on supported and non-supported slices

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- Number: US 10,484,886 B2
- Document ID: US10484886B2
- Status: Granted
- Kind: B2
- Application number: 15/964,841
- Filed: 2018-04-27
- Published: 2018-11-08
- Granted: 2019-11-19
- Earliest claimed: 2017-05-05
- Assignees: QUALCOMM Incorporated
- Applicants: QUALCOMM Incorporated
- Inventors: Miguel Griot; Gavin Bernard Horn; Ozcan Ozturk
- Web page: https://patentgrep.com/patent/US10484886B2

## CPC

- H04W 16/32: Hierarchical cell structures
- H04W 48/18: Selecting a network or a communication service
- H04W 48/20: Selecting an access point
- H04W 72/30: Resource management for broadcast services
- H04W 72/56: based on priority criteria
- H04W 48/10: using broadcasted information
- H04W 88/02: Terminal devices
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

Certain aspects of the present disclosure relate to methods and apparatus for providing broadcast information on supported and non-supported slices using communications systems operating according to new radio (NR) technologies. For example, a method for wireless communication by a user equipment (UE) may generally include receiving signaling of at least one of: a first list of network slices indicated as available in a first cell or a second list of network slices indicated as unavailable in the first cell, and performing at least one of cell reselection or cell selection taking into account the network slices listed in the at least one of the first list or the second list.

## Claims

### Claim 1

A method for wireless communications by a user equipment (UE), comprising:
receiving signaling of a first list of network slices indicated as available in a first cell and a second list of network slices indicated as unavailable in the first cell; and
performing at least one of cell reselection or cell selection taking into account the network slices listed in the at least one of the first list or the second list, wherein taking into account the network slices listed in the first list comprises prioritizing cells that indicate availability of a network slice in which the UE is interested over cells that indicate unavailability of the network slice in which the UE is interested or cells that do not indicate availability of the network slice in which the UE is interested.

### Claim 2 (depends on 1)

The method of claim 1, wherein the signaling comprises broadcast signaling.

### Claim 3 (depends on 1)

The method of claim 1, wherein the network slices in the first list or the second list are indicated by at least one of a slice service type (SST) or a slice differentiator (SD).

### Claim 4 (depends on 1)

The method of claim 1, wherein
taking into account the network slices listed in the first list further comprises considering that any network slice not indicated as available in the first list is not supported in the first cell.

### Claim 5 (depends on 4)

The method of claim 4, wherein:
the method further comprises receiving signaling indicating that any network slice not indicated as available in the first list is not supported in the first cell; and
the consideration is based on an explicit indication.

### Claim 6 (depends on 1)

The method of claim 1, wherein
taking into account the network slices listed in the first list further comprises considering that any network slice not indicated as available in the first list may or may not be supported in the first cell.

### Claim 7 (depends on 6)

The method of claim 6, wherein:
the method further comprises receiving signaling indicating that any network slice not indicated as available in the first list may or may not be supported in the first cell; and
the consideration is based on an explicit indication.

### Claim 8 (depends on 1)

The method of claim 1, wherein
taking into account the network slices listed in the second list comprises considering that any network slice not indicated as unavailable in the second list is supported in the first cell.

### Claim 9 (depends on 8)

The method of claim 8, wherein:
the method further comprises receiving signaling indicating that any network slice not indicated as unavailable in the second list is supported in the first cell, and
the consideration is based on an explicit indication.

### Claim 10 (depends on 1)

The method of claim 1, wherein
taking into account the network slices listed in the second list comprises considering that any network slice not indicated as unavailable in the second list may or may not be supported in the first cell.

### Claim 11 (depends on 10)

The method of claim 10, wherein:
the method further comprises receiving signaling indicating that any network slice not indicated as unavailable in the second list may or may not be supported in the first cell, and
the consideration is based on an explicit indication.

### Claim 12 (depends on 1)

The method of claim 1, further comprising:
maintaining, based on history of cells the UE has camped on, one or more lists indicating availability or unavailability of network slices supported by the cells; and
taking into account the network slices listed in the one or more maintained lists when performing cell reselection or cell selection.

### Claim 13 (depends on 1)

The method of claim 1, further comprising:
receiving information regarding availability or unavailability of network slices in one or more neighboring cells of the first cell; and
taking into account the information when performing cell reselection or cell selection.

### Claim 14 (depends on 13)

The method of claim 13, wherein the signaling is via dedicated signaling from a network node to the UE connected to the network node.

### Claim 15

A method for wireless communications by a network entity, comprising:
determining one or more network slices available in a first cell, each network slice corresponding to one or more services with certain characteristics;
providing, based on the determination, a second list of network slices indicated as unavailable in the first cell; and
providing an indication that any network slice not indicated as unavailable in the second list may or may not be supported in the first cell.

### Claim 16 (depends on 15)

The method of claim 15, further comprising providing a first list of network slices indicated as available in the first cell.

### Claim 17 (depends on 16)

The method of claim 16, wherein the providing, based on the determination, the second list of network slices indicated as unavailable in the first cell and providing the first list of network slices indicated as available in the first cell comprise broadcasting at least one of the first list or the second list.

### Claim 18 (depends on 16)

The method of claim 16, wherein the network slices in the first or second list are indicated by at least one of a slice service type (SST) or a slice differentiator (SD).

### Claim 19 (depends on 16)

The method of claim 16, wherein
any network slice not indicated as available in the first list is not supported in the first cell.

### Claim 20 (depends on 16)

The method of claim 16, wherein
providing an indication that any network slice not indicated as available in the first list may or may not be supported in the first cell.

### Claim 21 (depends on 16)

The method of claim 16, wherein
any network slice not indicated as unavailable in the second list is supported in the first cell.

### Claim 22 (depends on 15)

The method of claim 15, further comprising deciding whether to provide a first list of network slices indicated as available in the first cell, wherein the decision is based on at least one of: the network slices supported in the first cell, a configuration of the first cell, a configuration of one or more UEs, or network congestion.

### Claim 23 (depends on 15)

The method of claim 15, further comprising providing information regarding availability or unavailability of network slices in one or more neighboring cells of the first cell.

### Claim 24 (depends on 23)

The method of claim 23, wherein the signaling is provided via dedicated signaling to a UE connected to the network entity.

### Claim 25

An apparatus for wireless communication by a user equipment (UE), comprising:
means for receiving signaling of a first list of network slices indicated as available in a first cell and a second list of network slices indicated as unavailable in the first cell; and
means for performing at least one of cell reselection or cell selection taking into account the network slices listed in the at least one of the first list or the second list, wherein taking into account the network slices listed in the first list comprises prioritizing cells that indicate availability of a network slice in which the UE is interested over cells that indicate unavailability of the network slice in which the UE is interested or cells that do not indicate availability of the network slice in which the UE is interested.

### Claim 26

An apparatus for wireless communication by a network entity, comprising:
means for determining one or more network slices as available in a first cell, each network slice corresponding to one or more services with certain characteristics;
means for providing, based on the determination, a second list of network slices indicated as unavailable in the first cell; and
means for providing an indication that any network slice not indicated as unavailable in the second list may or may not be supported in the first cell.

### Claim 27

A non-transitory computer readable medium for wireless communication by a user equipment (UE) having instructions stored thereon, comprising:
instruction for receiving signaling of a first list of network slices indicated as available in a first cell and a second list of network slices indicated as unavailable in the first cell; and
instruction for performing at least one of cell reselection or cell selection taking into account the network slices listed in the at least one of the first list or the second list, wherein taking into account the network slices listed in the first list comprises prioritizing cells that indicate availability of a network slice in which the UE is interested over cells that indicate unavailability of the network slice in which the UE is interested or cells that do not indicate availability of the network slice in which the UE is interested.

### Claim 28

A non-transitory computer readable medium for wireless communication by a network entity having instructions stored thereon, comprising:
instruction for determining one or more network slices as available in a first cell, each network slice corresponding to one or more services with certain characteristics;
instruction for providing, based on the determination, a second list of network slices indicated as unavailable in the first cell; and
instruction for providing an indication that any network slice not indicated as unavailable in the second list may or may not be supported in the first cell.

### Claim 29

An apparatus for wireless communication by a user equipment (UE), comprising:
a memory; and
a processor coupled to the memory and configured to:
receive signaling of a first list of network slices indicated as available in a first cell and a second list of network slices indicated as unavailable in the first cell; and
perform at least one of cell reselection or cell selection taking into account the network slices listed in the at least one of the first list or the second list, wherein taking into account the network slices listed in the first list comprises prioritizing cells that indicate availability of a network slice in which the UE is interested over cells that indicate unavailability of the network slice in which the UE is interested or cells that do not indicate availability of the network slice in which the UE is interested.

### Claim 30

An apparatus for wireless communication by a network entity, comprising:
a memory; and
a processor coupled to the memory and configured to:
determine one or more network slices as available in a first cell, each network slice corresponding to one or more services with certain characteristics;
provide, based on the determination, a second list of network slices indicated as unavailable in the first cell; and
provide an indication that any network slice not indicated as unavailable in the second list may or may not be supported in the first cell.
