US 12,744,634 B2Granted

Dynamic SP/LPI multi-band

AssigneeCisco Technology, Inc.

InventorsSachin D. Wakudkar, Domenico Ficara, Roberto Muccifora, Amine Choukir, Jerome Henry

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Abstract

Described herein are devices, systems, methods, and processes for optimizing the utilization of large bandwidth channels in wireless communication networks. This is achieved by an access point (AP) identifying parts of the channel available for standard power (SP) transmissions and using novel puncturing messages to allow simultaneous low-power indoor (LPi) transmissions on the “punctured” parts of the channel. The AP can implement different modes to allow concurrent transmissions at SP level on the SP-allowed parts of the channels and at LPi level on part of the channel that do not allow SP transmissions. The AP can also switch unicast communication with a client device to LPi but with a larger channel width as the device nears the AP. The techniques allow for fuller utilization of large bandwidth channels where only a part of the channel is available for SP transmissions, thereby improving network efficiency.

Claims18

Dependent claims

A network device, comprising:

a processor;
at least one network interface controller configured to provide access to a network;
and
a memory communicatively coupled to the processor, wherein the memory comprises a management logic that is configured to:
select a channel;
identify one or more first channel segments of the channel, the one or more first channel segments being usable with a first transmit power mode and a second transmit power mode;
identify one or more second channel segments of the channel, the one or more second channel segments being usable with the second transmit power mode;
announce the identified one or more first channel segments or the identified one or more second channel segments;
and
transmit an indication of an allocation of a resource unit (RU) to a client device, wherein the indication of the allocation of the RU comprises an indication of the first transmit power mode or the second transmit power mode based on whether the RU is located in the identified one or more first channel segments or the identified one or more second channel segments;
wherein the indication of the first transmit power mode or the second transmit power mode is based further on a capability of the client device.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/429,246Filed 31 Jan 2024
Published: US 2025/0247182 A131 Jul 2025
Granted: 22 Sep 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

H04L 5/0048
Arrangements for allocating sub-channels of the transmission path: allocation of pilot signals, i.e. of signals known to the receiver
H04W 72/0453
Based on the type of the allocated resource: resources in frequency domain, e.g. a carrier in FDMA
H04L 1/0013
By adapting the channel coding: rate matching, e.g. puncturing or repetition of code symbols
H04L 5/0078
Arrangements for allocating sub-channels of the transmission path: timing of allocation