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US 11,889,505 B2Granted
Configuration of control information
AssigneeLG Electronics Inc.
InventorsDongguk Lim, Jinyoung Chun, Jinsoo Choi, Eunsung Park
Life of this patent
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Abstract
The present specification proposes technical features for improving various fields included in a PPDU. For example, a control signal field included in the PPDU may include a plurality of content channels and may be transmitted through a plurality of frequency segments. The plurality of content channels may include actual allocation information regarding a resource unit allocated to a specific frequency segment. Further, it may include preset information, not actual allocation information, regarding a resource unit allocated to another frequency segment. The preset information may be variously configured, for example, may be embodied as a zero user field.
Claims16
A method in a wireless local area network (WLAN) system, the method comprising:
- configure a Physical Protocol Data Unit (PPDU) including at least one Resource Unit (RU),
- wherein the PPDU includes at least one legacy field, a universal signal field for interpreting the PPDU, a control signal field including allocation information related to the at least one RU, and a data field,
- wherein the PPDU is transmitted through a plurality of segments including a first segment and a second segment,
- wherein the data field is transmitted on a plurality of 20 MHz sub-channels, wherein the plurality of 20 MHz subchannels include odd subchannels and even subchannels,
- wherein the control signal field includes a plurality of content channels, wherein the plurality of content channels include a plurality of first content channels and a plurality of second content channels,
- wherein at least one channel included in the first segment among the plurality of first content channels includes a first common field, and the first common field includes a first RU allocation subfield for at least one RU included in the first segment among the odd subchannels and a second RU allocation subfield for at least one RU included in the second segment among the odd subchannels,
- wherein at least one channel included in the first segment among the plurality of second content channels includes a second common field, and the second common field includes a third RU allocation subfield for at least one RU included in the first segment among the even subchannels and a fourth RU allocation subfield for at least one RU included in the second segment among the even subchannels,
- wherein the second RU allocation subfield and the fourth RU allocation subfield are set to a preset value for a zero user,
- wherein at least one channel included in the second segment among the plurality of first content channels includes a third common field,
- wherein the third common field includes a fifth RU allocation subfield for at least one RU included in the first segment among the odd subchannels and sixth RU allocation subfield for at least one RU included in the second segment among the odd subchannels,
- wherein at least one channel included in the second segment among the plurality of second content channels includes a fourth common field,
- wherein the fourth common field includes a seventh RU allocation subfield for at least one RU included in the first segment among the even subchannels and eighth RU allocation subfield for at least one RU included in the second segment among the even subchannels,
- wherein the fifth RU allocation subfield and the seventh RU allocation subfield are set to a preset value for a zero user;
- and
- transmitting the PPDU.
12 more elements
A method in a wireless local area network (WLAN) system, the method comprising:
- receiving a Physical Protocol Data Unit (PPDU) including at least one Resource Unit (RU),
- wherein the PPDU includes at least one legacy field, a universal signal field for interpreting the PPDU, a control signal field including allocation information related to the at least one RU, and a data field,
- wherein the PPDU is transmitted through a plurality of segments including a first segment and a second segment,
- wherein the data field is transmitted on a plurality of 20 MHz sub-channels, wherein the plurality of 20 MHz subchannels include odd subchannels and even subchannels,
- wherein the control signal field includes a plurality of content channels, wherein the plurality of content channels include a plurality of first content channels and a plurality of second content channels,
- wherein at least one channel included in the first segment among the plurality of first content channels includes a first common field, and the first common field includes a first RU allocation subfield for at least one RU included in the first segment among the odd subchannels and a second RU allocation subfield for at least one RU included in the second segment among the odd subchannels,
- wherein at least one channel included in the first segment among the plurality of second content channels includes a second common field, and the second common field includes a third RU allocation subfield for at least one RU included in the first segment among the even subchannels and a fourth RU allocation subfield for at least one RU included in the second segment among the even subchannels,
- wherein the second RU allocation subfield and the fourth RU allocation subfield are set to a preset value for a zero user,
- wherein at least one channel included in the second segment among the plurality of first content channels includes a third common field,
- wherein the third common field includes a fifth RU allocation subfield for at least one RU included in the first segment among the odd subchannels and sixth RU allocation subfield for at least one RU included in the second segment among the odd subchannels,
- wherein at least one channel included in the second segment among the plurality of second content channels includes a fourth common field,
- wherein the fourth common field includes a seventh RU allocation subfield for at least one RU included in the first segment among the even subchannels and eighth RU allocation subfield for at least one RU included in the second segment among the even subchannels,
- wherein the fifth RU allocation subfield and the seventh RU allocation subfield are set to a preset value for a zero user;
- and
- decoding, based on the universal signal field and the control signal field, the PPDU.
12 more elements
An apparatus in a wireless local area network (WLAN) system, the apparatus comprising:
- a memory;
- and
- a processor operatively connected to the memory,
- wherein the processor is configured to:
- obtain a Physical Protocol Data Unit (PPDU) including at least one Resource Unit (RU),
- wherein the PPDU includes at least one legacy field, a universal signal field for interpreting the PPDU, a control signal field including allocation information related to the at least one RU, and a data field,
- wherein the PPDU is transmitted through a plurality of segments including a first segment and a second segment,
- wherein the data field is transmitted on a plurality of 20 MHz sub-channels, wherein the plurality of 20 MHz subchannels include odd subchannels and even subchannels,
- wherein the control signal field includes a plurality of content channels, wherein the plurality of content channels include a plurality of first content channels and a plurality of second content channels,
- wherein at least one channel included in the first segment among the plurality of first content channels includes a first common field, and the first common field includes a first RU allocation subfield for at least one RU included in the first segment among the odd subchannels and a second RU allocation subfield for at least one RU included in the second segment among the odd subchannels,
- wherein at least one channel included in the first segment among the plurality of second content channels includes a second common field, and the second common field includes a third RU allocation subfield for at least one RU included in the first segment among the even subchannels and a fourth RU allocation subfield for at least one RU included in the second segment among the even subchannels,
- wherein the second RU allocation subfield and the fourth RU allocation subfield are set to a preset value for a zero user,
- wherein at least one channel included in the second segment among the plurality of first content channels includes a third common field,
- wherein the third common field includes a fifth RU allocation subfield for at least one RU included in the first segment among the odd subchannels and sixth RU allocation subfield for at least one RU included in the second segment among the odd subchannels,
- wherein at least one channel included in the second segment among the plurality of second content channels includes a fourth common field,
- wherein the fourth common field includes a seventh RU allocation subfield for at least one RU included in the first segment among the even subchannels and eighth RU allocation subfield for at least one RU included in the second segment among the even subchannels,
- wherein the fifth RU allocation subfield and the seventh RU allocation subfield are set to a preset value for a zero user;
- and
- decode, based on the universal signal field and the control signal field, the PPDU.
16 more elements
Dependencies are inferred from the claim text.