Muting pattern signaling in IAB inter-node measurement

Patent metadata

Field	Value
Publication number	US-12550083-B2
Application number	US-202017608229-A
Country	US
Kind code	B2
Filing date	Apr 24, 2020
Priority date	May 3, 2019
Publication date	Feb 10, 2026
Grant date	Feb 10, 2026

Abstract

In one aspect, a wireless relay node operating in a wireless communications network obtains (602), for each of one or more other wireless relay nodes, information indicating a muting pattern for muting of synchronization signal blocks, SSBs, by the other wireless relay node. The wireless relay node performs (604) measurements of SSBs and muting of SSB transmissions based on the obtained information.

First claim

What is claimed is:

1 . A method, in a first wireless relay node operating in a wireless communications network, the method comprising:
obtaining for each of one or more other wireless relay nodes, information indicating a muting pattern for muting of synchronization signal blocks (SSBs) by the one or more other wireless relay nodes, the muting of the SSBs being performed based on the obtained information and an internal list of muting prioritization, wherein the internal list describes, for each time domain measurement window, measuring of each of one or more other wireless relay nodes associated with SSBs and corresponding muting attribute; and performing measurements of SSBs and muting of SSB transmissions based on the obtained information and the internal list; wherein obtaining the information comprises receiving the information for each of a plurality of the other wireless relay nodes from a centralized network function to build the internal list based on the obtained information, and wherein receiving the information from the centralized network function comprises receiving the information in a measurement request sent to the first wireless relay node.

2 . The method of claim 1 , wherein obtaining the information comprises receiving the information for at least one of the other wireless relay nodes from the respective wireless relay node.

3 . The method of claim 2 , wherein receiving the information from the respective wireless relay node comprises receiving the information in an SSB received from the respective wireless relay node.

4 . The method of claim 1 , wherein, for at least one other wireless relay node, the information indicating the muting pattern is specific to a cell served by the respective other wireless relay node.

5 . The method of claim 1 , wherein, for at least one other wireless relay node, the information indicating the muting pattern applies to multiple cells served by the respective other wireless relay node.

6 . A wireless relay node comprising:
transceiver circuitry; and processing circuitry operatively associated with the transceiver circuitry, wherein the processing circuitry is configured to: obtain, for each of one or more other wireless relay nodes, information indicating a muting pattern for muting of synchronization signal blocks (SSBs) by the one or more other wireless relay nodes, the muting of the SSBs being performed based on the obtained information and an internal list of muting prioritizations, wherein the internal list describes, for each time domain measurement window, measuring of each of one or more other wireless relay nodes associated with SSBs and corresponding muting attribute; perform measurements of SSBs and muting of SSB transmissions, using the transceiver circuitry, based on the obtained information and the internal list, obtain the information by receiving the information for each of a plurality of the other wireless relay nodes from a centralized network function to build the internal list based on the obtained information, and receive the information from the centralized network function by receiving the information in a measurement request sent to a first wireless relay node.

7 . The wireless relay node of claim 6 , wherein the processing circuitry is configured to obtain the information by receiving the information for at least one of the other wireless relay nodes from the respective wireless relay node.

8 . The wireless relay node of claim 7 , wherein the processing circuitry is configured to receive the information from the respective wireless relay node by receiving the information in an SSB received from the respective wireless relay node.

9 . The wireless relay node of claim 6 , wherein, for at least one other wireless relay node, the information indicating the muting pattern is specific to a cell served by the respective other wireless relay node.

10 . The wireless relay node of claim 6 , wherein, for at least one other wireless relay node, the information indicating the muting pattern applies to multiple cells served by the respective other wireless relay node.

11 . A non-transitory computer readable medium comprising instructions for execution by processing circuitry of a wireless relay node, the instructions being configured to cause the processing circuitry of the wireless relay node to:
obtain, for each of one or more other wireless relay nodes, information indicating a muting pattern for muting of synchronization signal blocks (SSBs) by the one or more other wireless relay nodes, the muting of the SSBs being performed based on the obtained information and an internal list of muting prioritization, wherein the internal list describes, for each time domain measurement window, measuring of each of one or more other wireless relay nodes associated with SSBs and corresponding muting attribute; perform measurements of SSBs and muting of SSB transmissions based on the obtained information and the internal list, obtain the information by receiving the information for each of a plurality of the other wireless relay nodes from a centralized network function to build the internal list based on the obtained information, and receive the information from the centralized network function by receiving the information in a measurement request sent to a first wireless relay node.

Assignees

• Ericsson Telefon Ab L M
• Ericsson Telefon Ab L M

Inventors

• Dortschy Boris
• Dahlman Erik
• Huang Yezi
• Bao Lei
• Makki Behrooz

Classifications

• 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

• H04L5/0048

  Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091) · CPC title

• H04L5/0053

  Allocation of signalling, i.e. of overhead other than pilot signals · CPC title

• H04L5/0035

  Resource allocation in a cooperative multipoint environment · CPC title

• H04W88/14

  Backbone network devices · CPC title