Delay encoded vector symbolic radio multiple access

Patent metadata

Field	Value
Publication number	US-2025024434-A1
Application number	US-202218711418-A
Country	US
Kind code	A1
Filing date	Nov 10, 2022
Priority date	Nov 17, 2021
Publication date	Jan 16, 2025
Grant date	—

Abstract

A method by a neuromorphic device in a wireless communication network which communicates using radio frames and carrier frequencies. The method includes obtaining a high dimensional (HD) vector containing symbols. At least some symbols have a value indicating a pattern of firing events for associated one or more neurons of a neural network (NN). For each symbol in the HD vector having a nonzero value, selecting a subframe of a radio frame and/or a carrier frequency among a set of carrier frequencies, based on a defined mapping between subframes of the radio frame and/or carrier frequencies of the set and the locations of symbols in the HD vector, determining a time offset relative to the selected subframe and/or a frequency offset relative to the selected carrier frequency.

First claim

1 . A method by a neuromorphic device in a wireless communication network which communicates using radio frames and carrier frequencies, the method comprising:
obtaining a high dimensional (HD) vector containing symbols, wherein at least some of the symbols have a value operative to indicate a pattern of firing events for associated one or more neurons of a neural network (NN); and for each symbol in the HD vector having a nonzero value, selecting a subframe of a radio frame and/or a carrier frequency among a set of carrier frequencies, based on a defined mapping between subframes of the radio frame and/or carrier frequencies of the set and the locations of symbols in the HD vector, determining a time offset relative to the selected subframe and/or a frequency offset relative to the selected carrier frequency, based on the value of the symbol, and transmitting an impulse at the determined time offset relative to the selected subframe and/or at the determined frequency offset relative to the selected carrier frequency.

2 . The method of claim 1 , further comprising:
transmitting no impulse for any symbol in the HD vector having a zero value.

3 . The method of claim 1 , wherein:
the determining of the time offset includes determining a value of the time offset and/or a value of the frequency offset based on processing the value of the symbol through a linear function that maps symbol values to time offset values and/or to frequency offset values.

4 . The method of claim 1 , wherein:
the selecting includes selecting the subframe of the radio frame based on the defined mapping between subframes of the radio frame and the locations of symbols in the HD vector; the determining includes determining the time offset relative to the selected subframe based on the value of the symbol, and the transmitting includes transmitting the impulse at the determined time offset relative to the selected subframe.

5 . The method of claim 4 , further comprising:
determining an assignment of the neuromorphic device to one of a plurality of slots in the subframe of the radio frame,
wherein the transmitting includes transmitting the impulse at the determined time offset in the one of the slots.

6 . The method of claim 4 , further comprising:
for each symbol in the HD vector having a nonzero value, randomly selecting one of a plurality of slots in the subframe of the radio frame, wherein the transmitting transmits the impulse at the determined time offset in the one of the slots.

7 . The method of claim 1 , wherein:
the selecting selects the carrier frequency among the set of carrier frequencies based on the defined mapping between carrier frequencies of the set and the locations of symbols in the HD vector; the determining determines the frequency offset relative to the selected carrier frequency based on the value of the symbol; and the transmitting transmits the impulse at the determined frequency offset relative to the selected carrier frequency.

8 - 9 . (canceled)

10 . A method by a device in a wireless communication network which communicates using radio frames and carrier frequencies, the method comprising:
for an impulse that was received, identifying a time offset in a subframe of a radio frame when the impulse was received and/or a frequency offset of the impulse relative to a carrier frequency; determining a value of a symbol based on the identified time offset and/or frequency offset, wherein the value of the symbol operates to indicate a pattern of firing events for associated one or more neurons of a neural network (NN); storing the value of the symbol at a location in a high dimensional (HD) vector determined based on a defined mapping between: locations of symbols in the HD vector; and subframes of the radio frame and/or carrier frequencies of a set.

11 . The method of claim 10 , wherein:
the determining includes determining a value of the symbol based on processing the determined time offset and/or the frequency offset, through a linear function that maps symbol values to time offset values and/or to frequency offset values.

12 . The method of claim 10 , wherein:
the identifying identifies the time offset in the subframe of the radio frame when the impulse was received; the determining determines the value of the symbol based on the identified time offset; and the storing stores the value of the symbol at the location in the HD vector determined based on the defined mapping between locations of symbols in the HD vector and the subframes of the radio frame.

13 . The method of claim 12 , further comprising:
repeating the identifying for a plurality of impulses received in the subframe of the radio frame, wherein the determining determines the value of the symbol based on combining the identified time offsets.

14 . The method of claim 13 , wherein the combining comprises summing the identified time offsets.

15 . The method of claim 12 :
wherein the time offset is a phase; further comprising repeating the identifying for a plurality of impulses received in the subframe of the radio frame, wherein the determining determines the value of the symbol based on combining the phases of the plurality of impulses.

16 . The method of claim 10 , wherein:
the identifying identifies the frequency offset of the impulse relative to the carrier frequency; the determining determines the value of the symbol based on the identified frequency offset; the storing stores the value of the symbol at the location in the HD vector determined based on the defined mapping between locations of symbols in the HD vector and the carrier frequencies of the set.

17 . The method of claim 16 , further comprising:
repeating the identifying for a plurality of impulses received in the subframe of the radio frame, wherein the determining determines the value of the symbol based on combining the identified frequency offsets.

18 . The method of claim 17 , wherein the combining comprises summing the identified frequency offsets.

419 . The method of claim 10 :
wherein the device comprises a base station which receives the impulses in an uplink direction from a plurality of devices; further comprising transmitting the HD vector in a downlink direction.

20 . The method of claim 19 , further comprising:
receiving a locally bundled HD vector from another device; combining the HD vector generated by the device with the locally bundled HD vector from the other device to generate a combined HD vector; and transmitting the combined HD vector in the downlink direction.

21 - 22 . (canceled)

23 . A neuromorphic device in a wireless communication network which communicates using radio frames and carrier frequencies, the neuromorphic device adapted to:
obtain a high dimensional (HD) vector containing symbols, at least some of the symbols have a value operative to indicate a pattern of firing events for associated one or more neurons of a neural network (NN); and for each symbol in the HD vector having a nonzero value, select a subframe of a radio frame and/or a carrier frequency among a set of carrier frequencies, based on a defined mapping between subframes of the radio frame and/or carrier frequencies of the set and the locations of symbols in the HD vector, determine a time offset relative to the selected subframe and/or a frequency offset relative to the selected carrier frequency, based on the value of the symbol, and transmit an impulse at the determined time of

Assignees

• Ericsson Telefon Ab L M

Inventors

• Veres András
• Rácz András
• Hága Péter
• Kenesi Zsolt
• Borsos Tamas

Classifications

• H04B1/3827

  Portable transceivers · CPC title

• H04L27/2649

  Demodulators · CPC title

• G06N3/049

  Temporal neural networks, e.g. delay elements, oscillating neurons or pulsed inputs · CPC title

• H04W72/044 Primary

  based on the type of the allocated resource · CPC title

• H04L27/2627 Primary

  Modulators · CPC title