Apparatus and method for communication based on multi-resource unit in wireless local area network system
Provided is a method of wireless communication by a first device, the method including allocating multi-resource unit (MRU) to at least one second device; generating at least one resource unit (RU) allocation sub-field respectively corresponding to at least one sub-channel included in the MRU; and transmitting the at least one RU allocation sub-field to the at least one second device. Generating the at least one RU allocation sub-field may include identifying a first RU including a first sub-channel to indicate a zero user in the MRU; and generating a first RU allocation sub-field corresponding to the first sub-channel based on the first RU.
1. A method of wireless communication by a first device, the method comprising:
allocating a multi-resource unit (MRU) comprising a first single resource unit (RU) and a second single RU to at least one second device, the second single RU being greater than the first single RU;
generating a first RU allocation sub-field corresponding to the first single RU;
generating a second RU allocation sub-field corresponding to the second single RU; and
generating a third RU allocation sub-field corresponding to the MRU,
wherein the generating of the first RU allocation sub-field comprises:
setting the first RU allocation sub-field as a first value indicating that the first single RU contributes zero user fields,
wherein the generating of the second RU allocation sub-field subfield comprises setting the second RU allocation sub-field as a second value indicating that the second single RU contributes zero user fields, and
wherein the second value is different from the first value.
2. The method of claim 1 , wherein the first single RU is a 242-tone RU and the second single RU is a 484-tone RU.
3. The method of claim 1 , wherein the MRU further comprises a third single RU greater than the first single RU.
4. The method of claim 3 , further comprising generating a fourth RU allocation sub-field corresponding to the third single RU.
5. The method of claim 4 , wherein the generating of the fourth RU allocation sub-filed comprises setting the fourth RU allocation sub-field as a third value indicating that the third single RU contributes zero user fields.
6. The method of claim 5 , wherein the third value is identical to the second value.
7. The method of claim 6 , wherein the first single RU is a 484-tone RU and each of the second single RU and the third single RU is a 996-tone RU.
8. The method of claim 3 , wherein the MRU further comprises a fourth single RU greater than the first single RU.
9. The method of claim 8 , wherein further comprising generating a fifth RU allocation sub-field corresponding to the fourth single RU.
10. The method of claim 9 , wherein the generating of the fifth RU allocation sub-field comprises setting the fifth RU allocation sub-field as a fourth value indicating that the fourth single RU contributes zero user fields.
11. The method of claim 10 , wherein the fourth value is identical to the second value.
12. The method of claim 11 , wherein the first single RU is a 484-tone RU and each of the second, third and fourth single RUs is a 996-tone RU.
13. The method of claim 1 , wherein the third RU allocation sub-field further indicates a quantity of the at least one second device.
14. A method of wireless communication by a second device, the method comprising:
obtaining a first, second and third resource unit (RU) allocation sub-fields; and
identifying a multi-resource unit (MRU) comprising a first single RU and a second single RU based on the first, second and third RU allocation sub-fields, the second single RU is greater than the first single RU,
wherein the identifying of the MRU comprises:
identifying that the first RU contributes zero user fields when the first RU allocation sub-field has a first value;
identifying the second RU contributes zero user fields when the second RU allocation sub-field has a second value; and
identifying the MRU based on the third RU allocation subfield,
wherein the second value is different from the first value.
15. The method of claim 14 , wherein the first single RU is a 242-tone RU and the second single RU is a 484-tone RU.
16. The method of claim 14 , wherein the first single RU is a 484-tone RU and the third single RU is a 996-tone RU.
17. The method of claim 16 , wherein the MRU further comprises at least one single RU that is a 996-tone RU.
18. A method of wireless communication by a first device, the method comprising:
allocating at least one resource unit (RU) to at least one second device; and
generating at least one RU allocation sub-field respectively corresponding to at least one sub-channel;
wherein the generating of the at least one RU allocation sub-field comprises:
generating a first RU allocation sub-field having a first value when a corresponding first sub-channel is not to be used for data transmission and a preamble of the first sub-channel is punctured; and
generating the first RU allocation sub-field having a second value different from the first value when the first sub-channel is not to be used for data transmission and the preamble of the first sub-channel is not punctured.