Resource indication for link aggregation in a wireless network
A legacy WiFi communication may contain information to permit a receiver to know of the presence of a parallel new band (NB) communication, and to receive that information in time to know how to receive the NB communication. In various embodiments, this information may be contained in the L-SIG, RL-SIG, and/or HE-SIG-A subfields of a single user PPDU, or in the L-SIG, RL-SIG, HE-SIG-A, and/or HE-SIG-B subfields of a multi-user PPDU.
1. A wireless communications device comprising a processor and a memory, the device adapted to:
communicate a physical layer protocol data unit (PPDU) on at least one WiFi channel in a 5 GHz band or a 2.4 GHz band, wherein the PPDU is to include an HE-SIG-A field, an L-SIG field, and an RL-SIG field;
wherein the PPDU is to indicate a presence of at least one new band (NB) channel in a 3.5 GHz band; and
wherein the PPDU is to indicate said presence with either the HE-SIG-A field, or with a combination of the L-SIG field and the RL-SIG field.
2. The device of claim 1 , wherein the HE-SIG-A field is to have a bit to indicate the presence of the at least one NB channel.
3. The device of claim 1 , wherein relative polarities of constellations in the L-SIG and RL-SIG fields are to indicate the presence of the at least one NB channel.
4. The device of claim 1 , wherein the PPDU is to have at least one bit to indicate at least one frequency of the at least one NB channels.
5. The device of claim 1 , wherein:
the PPDU is to have an HE-SIG-B field for multi-user communications; and
the PPDU is to indicate at least one frequency of the at least one NB channels for each of the multiple users.
6. The device of claim 1 , wherein the wireless communications device is to transmit the PPDU.
7. The device of claim 1 , wherein the wireless communications device is to receive the PPDU.
8. The device of claim 1 , wherein the device comprises a display.
9. A method of communicating in a wireless network, comprising:
communicating, by a wireless communications device, a physical layer protocol data unit (PPDU) on at least one WiFi channel in a 5 GHz band or a 2.4 GHz band, wherein the PPDU is to include an HE-SIG-A field, an L-SIG field, and an RL-SIG field;
wherein the PPDU indicates a presence of at least one new band (NB) channel in a 3.5 GHz band;
wherein the PPDU indicates said presence with either an HE-SIG-A field, or with a combination of an L-SIG field and an RL-SIG field.
10. The method of claim 9 , wherein the HE-SIG-A field has a bit to indicate the presence of the at least one NB channel.
11. The method of claim 9 , wherein relative polarities of constellations in the L-SIG and RL-SIG fields indicate the presence of the at least one NB channel.
12. The method of claim 9 , wherein the HE-SIG-A field has at least one bit to indicate at least one frequency of the at least one NB channels.
13. The method of claim 9 , wherein the PPDU has an HE-SIG-B field for multi-user communications, and the HE-SIG-B field indicates at least one frequency for each of the multiple users.
14. The method of claim 9 , wherein said communicating comprises transmitting.
15. The method of claim 9 , wherein said communicating comprises receiving.
16. A computer-readable non-transitory storage medium that contains instructions, which when executed by one or more processors result in performing operations comprising:
communicating a physical layer protocol data unit (PPDU) on at least one WiFi channel in a 5 GHz band or a 2.4 GHz band, wherein the PPDU is to include an HE-SIG-A field, an L-SIG field, and an RL-SIG field;
wherein the PPDU indicates a presence of at least one new band (NB) channel in a 3.5 GHz band;
wherein the PPDU indicates said presence with either an HE-SIG-A field, or with a combination of an L-SIG field and an RL-SIG field.
17. The medium of claim 16 , wherein the HE-SIG-A field has a bit to indicate the presence of the at least one NB channel.
18. The medium of claim 16 , wherein relative polarities of constellations in the L-SIG and RL-SIG fields indicate the presence of the at least one NB channel.
19. The medium of claim 16 , wherein the HE-SIG-A field has at least one bit to indicate at least one frequency of the at least one NB channels.
20. The medium of claim 16 , wherein the PPDU has an HE-SIG-B field for multi-user communications, and the HE-SIG-B field indicates at least one frequency for each of the multiple users.
21. The medium of claim 16 , wherein the operation of communicating comprises receiving.
22. The medium of claim 16 , wherein the operation of communicating comprises transmitting.