INDICATING SUPPORT FOR COMMUNICATION USING MID-AMBLES

• US 20180145733A1
• Filed: 11/17/2017
• Published: 05/24/2018
• Est. Priority Date: 11/20/2016
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Verma, Lochan, Vermani, Sameer, Tian, Bin
• Granted Patent: US 10,608,720 B2
• Time in Patent Office: Days
• CPC Class Codes: H04B 7/0413 MIMO systems
• CPC Class Codes: H04B 7/0452 Multi-user MIMO systems
• CPC Class Codes: H04B 7/0617 for beam forming
• CPC Class Codes: H04L 1/0025 Transmission of mode-switching indication
• CPC Class Codes: H04L 27/261 Details of reference signals
• CPC Class Codes: H04L 5/0091 Signaling for the administration of the divided path
• CPC Class Codes: H04W 40/244 using a network of reference devices, e.g. beaconing
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

Various aspects of the disclosure relate to communication using a data unit that includes at least one mid-amble. In some aspects, an apparatus may use mid-ambles for mobility scenarios (e.g., when the apparatus is moving outdoors). The disclosure relates in some aspects to signaling associated with the use of mid-ambles. In some aspects, an apparatus may signal whether it supports sending and/or receiving data with mid-ambles. In some aspects, an apparatus may signal whether a particular data unit includes at least one mid-amble. In some aspects, an apparatus may signal an indication of at least one mid-amble update interval. In some aspects, an apparatus may signal whether a mid-amble includes a short training field.

Claims

1. An apparatus for communication, comprising:

a processing system configured to generate an indication of whether the apparatus supports communication using at least one mid-amble; and

an interface configured to output the indication for transmission.

2. The apparatus of claim 1, wherein the communication using at least one mid-amble comprises obtaining data units that include at least one mid-amble.

3. The apparatus of claim 1, wherein the communication using at least one mid-amble comprises generating data units that include at least one mid-amble and outputting the data units for transmission.

4. The apparatus of claim 1, wherein:

the generation of the indication comprises generating at least one of;

an information element, a management frame, a beacon, a probe request, a probe response, an association request, an association response, or any combination thereof including the indication therein; and

the indication is output for transmission via at least one of;

the information element, the management frame, the beacon, the probe request, the probe response, the association request, the association response, or any combination thereof.

5. The apparatus of claim 1, wherein the generation of the indication comprises:

determining a mobility state of the apparatus; and

specifying a value for the indication according to the mobility state.

6. The apparatus of claim 1, wherein:

the processing system is further configured to generate a second indication of whether each mid-amble includes a short training field; and

the interface is further configured to output the second indication for transmission.

7. The apparatus of claim 1, wherein each mid-amble comprises channel estimation information, gain setting information, or any combination thereof.

8. The apparatus of claim 1, wherein the indication applies to all data units to be generated and output for transmission by the apparatus.

9. The apparatus of claim 8, wherein each data unit comprises an IEEE 802.11ax frame.

10. The apparatus of claim 8, wherein each data unit comprises a Physical Layer Convergence Protocol (PLCP) Protocol Data Unit.

62. The apparatus of claim 1, further comprising:

a transmitter configured to transmit the indication,

wherein the apparatus is configured as a wireless node.

11-30. -30. (canceled)

31. A wireless node, comprising:

a processing system configured to generate an indication of whether the wireless node supports communication using at least one mid-amble; and

a transmitter configured to transmit the indication.

32. (canceled)

33. An apparatus for communication, comprising:

an interface configured to obtain an indication of whether another apparatus supports communication using at least one mid-amble; and

a processing system configured to process data units comprising at least one mid-amble if the indication indicates that the other apparatus supports communication using at least one mid-amble.

34. The apparatus of claim 33, wherein the communication using at least one mid-amble comprises obtaining the data units comprising at least one mid-amble.

35. The apparatus of claim 33, wherein the communication using at least one mid-amble comprises outputting the data units comprising at least one mid-amble for transmission.

36. The apparatus of claim 33, wherein the indication is obtained via at least one of:

an information element, a management frame, a beacon, a probe request, a probe response, an association request, an association response, or any combination thereof.

37. The apparatus of claim 33, wherein:

the interface is further configured to obtain a second indication of whether each mid-amble includes a short training field;

the processing system is further configured to adjust an automatic gain control estimation based on a short training field for each mid-amble if the indication indicates that each mid-amble includes a short training field.

38. The apparatus of claim 33, wherein each mid-amble comprises channel estimation information, gain setting information, or any combination thereof.

39. The apparatus of claim 33, wherein the indication applies to all data units obtained from the other apparatus.

40-59. -59. (canceled)

60. A wireless node, comprising:

a receiver configured to receive an indication of whether another apparatus supports communication using at least one mid-amble; and

a processing system configured to process data units comprising at least one mid-amble if the indication indicates that the other apparatus supports communication using at least one mid-amble.

61. (canceled)