Master station and method for HEW communication using a transmission signaling structure for a HEW signal field

• US 9,867,210 B2
• Filed: 09/29/2016
• Issued: 01/09/2018
• Est. Priority Date: 11/19/2013
• Status: Active Grant

• Current Assignee: Ax Wireless LLC (SY Ventures)
• Original Assignee: Intel IP Corporation (Intel Corporation)
• Inventors: Azizi, Shahrnaz, Kenney, Thomas J., Li, Guoqing C., Perahia, Eldad, Stacey, Robert J.
• Primary Examiner(s): KHIRODHAR, MAHARISHI V
• Application Number:
  US15/280,782
• Publication Number:
  US 20170019916A1
• Time in Patent Office: 467 Days
• CPC Class Codes: H04B 7/0452 Multi-user MIMO systems
• CPC Class Codes: H04L 1/0003 by switching between different modulation schemes
• CPC Class Codes: H04L 1/0006 by adapting the transmission format
• CPC Class Codes: H04L 27/2601 Multicarrier modulation systems
• CPC Class Codes: H04L 5/003 Arrangements for allocating sub-channels of the transmission path
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]

Abstract

Embodiments of a transmission signaling structure for HEW are defined to carry packet information to configure OFDMA receivers for demodulation of a specific portion of the packet and/or to configure receivers for transmission using specific OFDMA and MU-MIMO resources. In some embodiments, the specific portion of the packet comprises one or more minimum bandwidth units of one or more 20 MHz channels. Each 20 MHz bandwidth structure may comprise several minimum bandwidth units to allow each 20 MHz channel to have a have smaller granularity than 20 MHz.

Claims

1. An apparatus comprising:

memory; and

processing circuitry coupled to the memory, the processing circuitry configured to;

encode a high efficiency (HE) packet comprising a HE signal (HE-SIG) field, the HE-SIG field comprising an indicator to indicate, for a 20 MHz bandwidth, a resource unit (RU) arrangement of a plurality of RU arrangements in a frequency domain, the indicator to further indicate a number of multi-user multiple-input multiple-output (MU-MIMO) allocations, the RU arrangement comprising a mix of different RU sizes for the 20 MHz bandwidth, wherein the HE-SIG field is to configure HE stations to receive a data portion of the HE packet, the data portion of the HE packet configured in accordance with the RU arrangement; and

configure the HE packet for transmission by a wireless device to the HE stations.

2. The apparatus of claim 1, wherein the processing circuitry is further configured to:

encode a cyclic-redundancy check (CRC) for the HE-SIG field in the HE-SIG field.

3. The apparatus of claim 1, wherein the HE-SIG field further comprises configuration parameters for each RU of the RU arrangement of the plurality of RU arrangements, and wherein the configuration parameters comprise one or more of the following fields:

an indication of a modulation and coding scheme (MCS), an indicator if a Low-density parity-check code is to be used, and an indication if beamforming is to be used.

4. The apparatus of claim 1, wherein the processing circuitry is further configured to:

encode the HE packet to further comprise a second HE-SIG field, the second HE-SIG field comprising a second indicator to indicate, for a second 20 MHz bandwidth, a second RU arrangement, wherein the second 20 MHz bandwidth and the 20 MHz bandwidth are different portions of a 40 MHz bandwidth.

5. The apparatus of claim 4, wherein the processing circuitry is further configured to:

configure the HE packet for transmission by the wireless device, wherein the HE-SIG field is to be transmitted on the 20 MHz bandwidth and the second HE-SIG field is to be transmitted on the second 20 MHz bandwidth.

6. The apparatus of claim 5, wherein the HE-SIG field further comprises configuration parameters for each RU of the RU arrangement of the plurality of RU arrangements, and wherein the second HE-SIG field further comprises second configuration parameters for each RU of the second RU arrangement, the configuration parameters and the second configuration parameters comprising an indication of a modulation and coding scheme (MCS).

7. The apparatus of claim 6, wherein the processing circuitry is further configured to:

encode the data portion of the HE packet with data to be encoded in accordance with configuration parameters associated with each RU of the RU arrangement on the 20 MHz bandwidth of the HE packet; and

encode a second data portion of the HE packet with second data to be encoded in accordance with second configuration parameters associated with each RU of the second RU arrangement on a second 20 MHz bandwidth of the HE packet.

8. The apparatus of claim 1, wherein each of the plurality of RU arrangements indicate a number of RUs and a location of each of the number of RUs.

9. The apparatus of claim 1, wherein the HE-SIG field further comprises configuration parameters for each of the RUs of the RU arrangement and wherein the configuration parameters comprise an indicator to indicate if the RU is a single user (SU) or (MU) RU and a number of space-time streams.

10. The apparatus of claim 1, wherein each of the HE stations and the wireless device is one of the following group:

an Institute of Electrical and Electronic Engineers (IEEE) 802.11 access point, an IEEE 802.11 station, an IEEE 802.11ax access point, and an IEEE 802.11ax station.

11. The apparatus of claim 1, further comprising transceiver circuitry coupled to the processing circuitry.

12. The apparatus of claim 11, further comprising a plurality of antennas coupled to the transceiver circuitry.

13. A method performed by an apparatus, the method comprising:

encoding a high efficiency (HE) packet comprising a HE signal (HE-SIG) field, the HE-SIG field comprising an indicator to indicate, for a 20 MHz bandwidth, a resource unit (RU) arrangement of a plurality of RU arrangements in a frequency domain, the indicator to further indicate a number of multi-user multiple-input multiple-output (MU-MIMO) allocations, the RU arrangement comprising a mix of different RU sizes for the 20 MHz bandwidth, wherein the HE-SIG field is to configure HE stations to receive a data portion of the HE packet, the data portion of the HE packet configured in accordance with the RU arrangement; and

configuring the HE packet for transmission by a wireless device to the HE stations.

14. The method of claim 13, wherein the HE-SIG field further comprises configuration parameters for each RU of the RU arrangement of the plurality of RU arrangements, and wherein the configuration parameters comprise one or more of the following fields:

an indication of a modulation and coding scheme (MCS), an indicator if a Low-density parity-check code is to be used, and an indication if beamforming is to be used.

15. A non-transitory computer-readable storage medium that stores instructions for execution by one or more processors, the instructions to configure the one or more processors to cause an apparatus to:

encode a high efficiency (HE) packet comprising a HE signal (HE-SIG) field, the HE-SIG field comprising an indicator to indicate, for a 20 MHz bandwidth, a resource unit (RU) arrangement of a plurality of RU arrangements in a frequency domain, the indicator to further indicate a number of multi-user multiple-input multiple-output (MU-MIMO) allocations, the RU arrangement comprising a mix of different RU sizes for the 20 MHz bandwidth, wherein the HE-SIG field is to configure HE stations to receive a data portion of the HE packet, the data portion of the HE packet configured in accordance with the RU arrangement; and

configure the HE packet for transmission by a wireless device to the HE stations.

16. The non-transitory computer-readable storage medium of claim 15, wherein the instructions are to further configure the one or more processors to cause the apparatus to:

encode the HE packet to further comprise a second HE-SIG field, the second HE-SIG field comprising a second indicator to indicate, for a second 20 MHz bandwidth, a second RU arrangement, wherein the second 20 MHz bandwidth and the 20 MHz bandwidth are different portions of a 40 MHz bandwidth.

17. The non-transitory computer-readable storage medium of claim 16, wherein the instructions are to further configure the one or more processors to cause the apparatus to:

configure the HE packet for transmission by the wireless device, wherein the HE-SIG field is to be transmitted on the 20 MHz bandwidth and the second HE-SIG field is to be transmitted on the second 20 MHz bandwidth.

18. The non-transitory computer-readable storage medium of claim 17, wherein the HE-SIG field further comprises configuration parameters for each RU of the RU arrangement of the plurality of RU arrangements, and wherein the second HE-SIG field further comprises second configuration parameters for each RU of the second RU arrangement, the configuration parameters and the second configuration parameters comprising an indication of a modulation and coding scheme (MCS).

19. The non-transitory computer-readable storage medium of claim 18, wherein the instructions are to further configure the one or more processors to cause the apparatus to:

encode the data portion of the HE packet with data to be encoded in accordance with configuration parameters associated with each RU of the RU arrangement on the 20 MHz bandwidth of the HE packet; and

encode a second data portion of the HE packet with second data to be encoded in accordance with second configuration parameters associated with each RU of the second RU arrangement on a second 20 MHz bandwidth of the HE packet.

20. An apparatus comprising:

memory; and

processing circuitry coupled to the memory, the processing circuitry configured to;

decode a high efficiency (HE) packet comprising a HE signal (HE-SIG) field, the HE-SIG field comprising an indicator to indicate, for a 20 MHz bandwidth, a resource unit (RU) arrangement of a plurality of RU arrangements in a frequency domain, the indicator to further indicate a number of multi-user multiple-input multiple-output (MU-MIMO) allocations, the RU arrangement comprising a mix of different RU sizes for the 20 MHz bandwidth, wherein the HE-SIG field is to configure HE stations to receive a data portion of the HE packet, the data portion of the HE packet configured in accordance with the RU arrangement; and

decode the data portion in accordance with an RU of the RU arrangement for a HE station of the HE stations.

21. The apparatus of claim 20, wherein the HE-SIG field further comprises configuration parameters for each RU of the second RU arrangement, the configuration parameters comprising an indication of a modulation and coding scheme (MCS).

22. The apparatus of claim 21, wherein the processing circuitry is further configured to:

decode the data portion in accordance with the configuration parameters corresponding to the RU for the HE station.

23. The apparatus of claim 20, wherein the HE station is one of the following group:

an Institute of Electrical and Electronic Engineers (IEEE) 802.11 access point, an IEEE 802.11 station, IEEE 802.11ax access point, or an IEEE 802.11ax station.

24. The apparatus of claim 20, further comprising transceiver circuitry coupled to the processing circuitry.

25. The apparatus of claim 24, further comprising a plurality of antennas coupled to the transceiver circuitry.