Electronic device for allocating resource in WLAN system and operating method thereof
Various embodiments of the disclosure relate to a device and a method for allocating a resource in a wireless LAN system. An electronic device may include: a memory, a communication circuit, and a processor operatively connected to the memory and the communication circuit, wherein the processor is configured to: receive a reference signal from an external electronic device via the communication circuit, identify channel gains of multiple subcarriers included in a frequency resource through a channel estimation based on the reference signal, identify, based on the channel gains of the subcarriers, subcarriers in which constructive interference is determined to have occurred, configure multiple resource groups each including at least one consecutive subcarrier among the identified subcarriers, and transmit information related to the multiple resource groups to the external electronic device via the communication circuit.
1. An electronic device comprising:
memory storing instructions;
a communication circuit; and
at least one processor including processing circuitry and operatively connected to the memory and the communication circuit,
wherein the instructions which, when executed by the at least one processor individually and/or collectively, cause the electronic device:
receive a reference signal from an external electronic device via the communication circuit,
identify channel gains of multiple subcarriers included in a frequency resource through a channel estimation based on the reference signal,
identify, based on the channel gains of the subcarriers, subcarriers in which constructive interference is determined to have occurred,
configure multiple resource groups each including at least one consecutive subcarrier among the identified subcarriers, and
transmit information related to the multiple resource groups to the external electronic device via the communication circuit.
2. The electronic device of claim 1 , wherein each multiple resource groups comprises at least one subcarrier which is not consecutive to at least one subcarrier included in a different resource group.
3. The electronic device of claim 1 , wherein the information related to the multiple resource groups comprises an index of a subcarrier at a start point among at least one subcarrier included in each resource group, and an index of a subcarrier at a last point.
4. The electronic device of claim 1 , wherein the instructions, when executed by the at least one processor, cause the electronic device to determine that the constructive interference has occurred in the subcarriers, the channel gains of which satisfy a designated first condition, among the multiple subcarriers.
5. The electronic device of claim 1 , wherein the instructions, when executed by the at least one processor, cause the electronic device to:
identify subcarriers having local peaks among the multiple subcarriers, and
detect, based on channel gains of the subcarriers having the local peaks, the subcarriers in which the constructive interference is determined to have occurred.
6. The electronic device of claim 1 , wherein the instructions, when executed by the at least one processor, cause the electronic device to:
identify multiple resource areas configured in the frequency resource, and
select, based on channel gains of subcarriers included in the resource areas, resource areas in which the constructive interference is determined to have occurred.
7. The electronic device of claim 1 , wherein the communication circuit is configured to support short-range wireless communication based on an orthogonal frequency division multiple access (OFDMA) transmission scheme.
8. The electronic device of claim 1 , wherein information related to the multiple resource groups is included in a beamforming report, a signal field (SIG) of a physical (PHY) header, or a media access control (MAC) header.
9. A method of operating an electronic device, the method comprising:
receiving a reference signal from an external electronic device via short-range wireless communication,
identifying channel gains of multiple subcarriers included in a frequency resource through a channel estimation based on the reference signal,
identifying, based on the channel gains of the subcarriers, subcarriers in which constructive interference is determined to have occurred,
configuring multiple resource groups each including at least one consecutive subcarrier among the identified subcarriers, and
transmitting information related to the multiple resource groups to the external electronic device.
10. The method of claim 9 , wherein each multiple resource groups comprises at least one subcarrier which is not consecutive to at least one subcarrier included in a different resource group.
11. The method of claim 9 , wherein the information related to the multiple resource groups comprises an index of a subcarrier at a start point among at least one subcarrier included in each resource group, and an index of a subcarrier at a last point.
12. The method of claim 9 , wherein the identifying of the at least one subcarrier comprises determining that the constructive interference has occurred in the subcarriers, the channel gains of which satisfy a designated first condition, among the multiple subcarriers.
13. The method of claim 9 , wherein the identifying of the at least one subcarrier comprises:
identifying subcarriers having local peaks among the multiple subcarriers, and
detecting, based on channel gains of the subcarriers having the local peaks, the subcarriers in which the constructive interference is determined to have occurred.
14. The method of claim 9 , wherein the identifying of the at least one subcarrier comprises
identifying multiple resource areas configured in the frequency resource, and
selecting, based on channel gains of subcarriers included in the resource areas, resource areas in which the constructive interference is determined to have occurred.
15. The method of claim 9 , wherein information related to the multiple resource groups is included in a beamforming report, a signal field (SIG) of a physical (PHY) header, or a media access control (MAC) header.
16. The method of claim 9 , wherein the short-range wireless communication comprises short-range wireless communication based on an orthogonal frequency division multiple access (OFDMA) transmission scheme.
17. An electronic device comprising:
memory storing instructions;
a communication circuit; and
at least one processor including processing circuitry and operatively connected to the memory and the communication circuit,
wherein the instructions which, when executed by the at least one processor individually and/or collectively, cause the electronic device to:
transmit a reference signal via the communication circuit,
receive information related to multiple resource groups including at least one subcarrier in which constructive interference is determined to have occurred in a frequency resource by each respective one of multiple external electronic devices, based on the reference signal,
select an external electronic device to which a wireless resource is to be allocated among the multiple external electronic devices, and
allocate a wireless resource to the external electronic device, based on the information related to multiple resource groups, which is received from the external electronic device.
18. The electronic device of claim 17 , wherein each of the multiple resource groups comprises at least one consecutive subcarrier in which the constructive interference is determined to have occurred by the external electronic device, and
wherein the multiple resource groups comprise at least one subcarrier which is not consecutive to at least one subcarrier included in a different resource group.
19. The electronic device of claim 18 , wherein the information related to multiple resource groups comprises an index of a subcarrier at a start point among at least one subcarrier included in each resource group, and an index of a subcarrier at a last point.
20. The electronic device of claim 17 , wherein the communication circuit is configured to support short-range wireless communication based on an orthogonal frequency division multiple access (OFDMA) transmission scheme.