Techniques for supporting dynamic frequency division multiplexing within carrier

Patent metadata

Field	Value
Publication number	US-12363680-B2
Application number	US-202217682266-A
Country	US
Kind code	B2
Filing date	Feb 28, 2022
Priority date	Mar 30, 2021
Publication date	Jul 15, 2025
Grant date	Jul 15, 2025

Abstract

Aspects described herein relate to providing dynamic frequency division multiplexing (FDM) within a component carrier (CC) for use by integrated access and backhaul (TAB) nodes. A configuration can be communicated for each cell of the IAB node indicating multiple resource availability combinations with each resource availability combination corresponding to resource block (RB) sets over multiple slots. A downlink control information (DCI) indicating one resource availability combination of the multiple resource availability combinations for one or more cells of the IAB node can be communicated as well. The IAB node can communicate, in a slot, over one or more RB sets of the multiple configured RB sets in symbols indicated as available by the one resource availability combination.

First claim

What is claimed is:

1. An integrated access and backhaul (IAB) node for wireless communication, comprising:
a transceiver;
a memory configured to store instructions; and
one or more processors communicatively coupled with the memory and the transceiver, wherein the one or more processors are configured to:
receive, from an upstream node, a configuration, originated by an IAB donor, for each cell of the IAB node indicating multiple resource availability combinations with each resource availability combination over multiple slots, wherein each item in each resource availability combination indicates a resource availability for one or more selected resource block (RB) sets, associated with a soft type, of multiple configured RB sets, wherein the multiple configured RB sets are configured, per RB set in a time domain of multiple symbols in one slot, as one of a hard type, the soft type, or an unavailable type, wherein the multiple configured RB sets include at least a first RB set that is associated with the soft type in a first symbol of the one slot and at least a second RB set that is associated with the hard type or the unavailable type in a second symbol of the one slot, and wherein the first RB set and the second RB set are associated with a same frequency;
receive, from the upstream node, a downlink control information (DCI) indicating one resource availability combination of the multiple resource availability combinations for one or more cells of the IAB node; and
communicate, by the one or more cells of the IAB node and in the one slot, over the one or more selected RB sets in symbols indicated as available by the one resource availability combination.

2. The IAB node of claim 1 , wherein the resource availability indicated by a given item of the one resource availability combination for the one slot corresponds to the one or more selected RB sets at symbols in the one slot.

3. The IAB node of claim 2 , wherein the given item indicates the one resource availability combination in the one slot as one of:
no indication of availability over the one or more selected RB sets associated with the soft type in all of the symbols;
indication of availability over the one or more selected RB sets associated with the soft type in symbols having a symbol type of downlink symbol with no indication of availability over the one or more selected RB sets in symbols having a symbol type of uplink symbol or flexible symbol;
indication of availability over the one or more selected RB sets associated with the soft type in symbols having a symbol type of uplink symbol with no indication of availability over the one or more selected RB sets in symbols having a symbol type of downlink symbol or flexible symbol;
indication of availability over the one or more selected RB sets associated with the soft type in symbols having a symbol type of downlink symbol or uplink symbol with no indication of availability over the one or more selected RB sets in symbols having a symbol type of flexible symbol;
indication of availability over the one or more selected RB sets associated with the soft type in symbols having a symbol type of flexible symbol with no indication of availability over the one or more selected RB sets in symbols having a symbol type of downlink symbol or uplink symbol;
indication of availability over the one or more selected RB sets associated with the soft type in symbols having a symbol type of downlink symbol or flexible symbol with no indication of availability over the one or more selected RB sets in symbols having a symbol type of uplink symbol;
indication of availability over the one or more selected RB sets associated with the soft type in symbols having a symbol type of uplink symbol or flexible symbol with no indication of availability over the one or more selected RB sets in symbols having a symbol type of downlink symbol; or
indication of availability over the one or more selected RB sets associated with the soft type in all of the symbols.

4. The IAB node of claim 1 , wherein the indication of the one or more selected RB sets includes a bitmap, where each bit in the bitmap indicates selection of one RB set of the multiple configured RB sets.

5. The IAB node of claim 1 , wherein the indication of the one or more selected RB sets includes one or more indices of RB sets corresponding to the one or more selected RB sets.

6. The IAB node of claim 1 , wherein the indication of one or more selected RB sets is received in the configuration.

7. The IAB node of claim 1 , wherein the configuration indicates, for each respective slot in each respective resource availability combination of the multiple resource availability combinations, the one or more selected RB sets of the multiple configured RB sets that correspond to the respective slot.

8. The IAB node of claim 1 , wherein the configuration indicates, for each resource availability combination of the multiple resource availability combinations, the one or more selected RB sets of the multiple configured RB sets that correspond to the respective slot.

9. The IAB node of claim 1 , wherein the configuration indicates the resource availability for only a subset of the multiple slots that include symbols having RB sets associated with the soft type.

10. A node for wireless communication, comprising:
a transceiver;
a memory configured to store instructions; and
one or more processors communicatively coupled with the memory and the transceiver, wherein the one or more processors are configured to:
transmit, to a downstream integrated access and backhaul (IAB) node, a configuration for each cell of the downstream IAB node indicating multiple resource availability combinations with each resource availability combination over multiple slots, wherein each item in each resource availability combination indicates a resource availability for one or more selected resource block (RB) sets, associated with a soft type, of multiple configured RB sets, wherein the multiple configured RB sets are configured, per RB set in a time domain of multiple symbols in one slot, as one of a hard type, the soft type, or an unavailable type, wherein the multiple configured RB sets include at least a first RB set that is associated with the soft type in a first symbol of the one slot and at least a second RB set that is associated with the hard type or the unavailable type in a second symbol of the one slot, and wherein the first RB set and the second RB set are associated with a same frequency; and
transmit, to the downstream IAB node, a downlink control information (DCI) indicating one resource availability combination of the multiple resource availability combinations for one or more cells of the downstream IAB node.

11. The node of claim 10 , wherein the resource availability indicated by a given item of the one resource availability combination for the one slot corresponds to the one or more selected RB sets at symbols in the one slot.

12. The node of claim 11 , wherein the given item indicates the one resource availability combination in the one slot as one of:
no indication of availability over the one or more selected RB sets associated with the soft type in all of the symbols;
indication of availability over the one or more selected RB sets associated with the soft type in symbols having a symbol type of downlink symbol with no indication of availability over the one or more selected RB sets in symbols having a symbol type of uplink symbol or flexible symbol;
indication of availability over the one or more selected RB sets associated with the soft type in symbols having a symbol type of uplink symbol with no indication of availability over th

Assignees

• Qualcomm Inc

Inventors

• Luo Jianghong
• Abedini Navid
• Blessent Luca
• Hampel Karl Georg
• Akl Naeem
• Luo Tao
• Li Junyi

Classifications

• H04W72/23

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04W72/0446

  Resources in time domain, e.g. slots or frames · CPC title

• H04W88/14

  Backbone network devices · CPC title

• H04W72/02 Primary

  Selection of wireless resources by user or terminal · CPC title

• H04B7/15542 Primary

  Selecting at relay station its transmit and receive resources (selection of wireless resources by user or terminal H04W72/02; arrangements affording multiple use of the transmission path by two-dimensional division of the resources H04L5/0003, or by allocating sub-channels H04L5/003) · CPC title