METHODS AND APPARATUS FOR MULTIPLE USER UPLINK

• US 20150063111A1
• Filed: 08/26/2014
• Published: 03/05/2015
• Est. Priority Date: 08/28/2013
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Merlin, Simone, Barriac, Gwendolyn Denise, Sampath, Hemanth, Vermani, Sameer
• Granted Patent: US 10,516,614 B2
• Time in Patent Office: Days
• US Class Current: 370/235
• CPC Class Codes: H04B 7/0452 Multi-user MIMO systems
• CPC Class Codes: H04B 7/2621 using frequency division multiple access [FDMA] H04B7/2615 takes precedence
• CPC Class Codes: H04L 1/0008 by supplementing frame payload, e.g. with padding bits
• CPC Class Codes: H04L 1/0031 Multiple signaling transmission H04L1/1664, F15 take precedence
• CPC Class Codes: H04L 1/1607 Details of the supervisory signal
• CPC Class Codes: H04L 1/1621 Group acknowledgement, i.e. the acknowledgement message defining a range of identifiers, e.g. of sequence numbers
• CPC Class Codes: H04L 1/1854 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 1/1858 Transmission or retransmission of more than one copy of acknowledgement message
• CPC Class Codes: H04L 1/1861 Physical mapping arrangements for ACK signaling see also H04L5/0053
• CPC Class Codes: H04L 2001/0093 Point-to-multipoint
• CPC Class Codes: H04L 47/12 Avoiding congestion; Recovering from congestion
• CPC Class Codes: H04L 47/24 Traffic characterised by specific attributes, e.g. priority or QoS
• CPC Class Codes: H04L 47/72 using reservation actions during connection setup
• CPC Class Codes: H04L 47/805 QOS or priority aware
• CPC Class Codes: H04L 5/0005 Time-frequency
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/003 Arrangements for allocating sub-channels of the transmission path
• CPC Class Codes: H04L 5/0037 Inter-user or inter-terminal allocation
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04N 7/17309 : Transmission or handling of upstream communications
• CPC Class Codes: H04W 28/06 : Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• CPC Class Codes: H04W 28/24 : Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
• CPC Class Codes: H04W 52/146 : Uplink power control
• CPC Class Codes: H04W 52/50 : at the moment of starting communication in a multiple access environment
• CPC Class Codes: H04W 72/0446 : Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/0453 : Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/12 : Wireless traffic scheduling
• CPC Class Codes: H04W 72/121 : for groups of terminals or users
• CPC Class Codes: H04W 72/21 : in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/23 : in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 74/002 : Transmission of channel access control information
• CPC Class Codes: H04W 74/006 : in the downlink, i.e. towards the terminal
• CPC Class Codes: H04W 74/04 : Scheduled access hybrid access H04W74/02
• CPC Class Codes: H04W 74/08 : Non-scheduled access, e.g. ALOHA hybrid access H04W74/02
• CPC Class Codes: H04W 74/0816 : with collision avoidance
• CPC Class Codes: H04W 74/085 : collision avoidance
• CPC Class Codes: H04W 8/04 : Registration at HLR or HSS [Home Subscriber Server]
• CPC Class Codes: Y02D 30/70 : in wireless communication networks

Abstract

Methods and apparatus for multiple user uplink are provided. In one aspect, a method of wireless communication is provided. The method includes transmitting a quality of service (QoS) message to a device. The QoS message includes a request for a transmission opportunity for sending uplink data to the device. The QoS message includes at least one of a sequence control field or a QoS control field. The method further includes receiving a clear to transmit (CTX) message in response to the QoS message. The method further includes transmitting data to the device in response to the CTX message.

Claims

1. A method of wireless communication, comprising:

transmitting a quality of service (QoS) message to a device, the QoS message including a request for a transmission opportunity for sending uplink data to the device, the QoS message comprising within at least one of a sequence control field or a QoS control field;

receiving a clear to transmit (CTX) message in response to the QoS message; and

transmitting data to the device in response to the CTX message.

2. The method of claim 1, wherein the QoS message comprises a QoS data frame.

3. The method of claim 1, wherein the QoS message comprises a QoS null frame.

4. The method of claim 1, wherein the QoS message comprises a QoS field indicating a buffer size for a plurality of traffic identifiers (TIDs).

5. The method of claim 1, wherein the QoS message comprises a QoS field comprising the indication of transmission power.

6. The method of claim 1, wherein the QoS message comprises a QoS field requesting one or more modulation and coding schemes (MCSs).

7. The method of claim 1, wherein the QoS message comprises a sequence control field indicating a buffer size for a plurality of traffic identifiers (TIDs).

8. The method of claim 1, wherein the QoS message comprises a sequence control field comprising the indication of transmission power.

9. The method of claim 1, wherein the QoS message comprises a sequence control field requesting one or more modulation and coding schemes (MCSs).

10. The method of claim 1, wherein said receiving comprises receiving the CTX message after the device receives QoS messages with buffer information from a plurality of uplink users.

11. An apparatus configured to communicate wirelessly, comprising:

a processor configured to prepare for transmission a quality of service (QoS) message to a device, the QoS message including a request for a transmission opportunity for sending uplink data to the device, the QoS message comprising within at least one of a sequence control field or a QoS control field;

a receiver configured to receive a clear to transmit (CTX) message in response to the QoS message; and

a transmitter configured to transmit data to the device in response to the CTX message.

12. The apparatus of claim 11, wherein the QoS message comprises a QoS data frame.

13. The apparatus of claim 11, wherein the QoS message comprises a QoS null frame.

14. The apparatus of claim 11, wherein the QoS message comprises a QoS field indicating a buffer size for a plurality of traffic identifiers (TIDs).

15. The apparatus of claim 11, wherein the QoS message comprises a QoS field comprising the indication of transmission power.

16. The apparatus of claim 11, wherein the QoS message comprises a QoS field requesting one or more modulation and coding schemes (MCSs).

17. The apparatus of claim 11, wherein the QoS message comprises a sequence control field indicating a buffer size for a plurality of traffic identifiers (TIDs).

18. The apparatus of claim 11, wherein the QoS message comprises a sequence control field comprising the indication of transmission power.

19. The apparatus of claim 11, wherein the QoS message comprises a sequence control field requesting one or more modulation and coding schemes (MCSs).

20. The apparatus of claim 11, wherein the receiver is configured to receive the CTX message after the device receives QoS messages with buffer information from a plurality of uplink users.

21. An apparatus for wireless communication, comprising:

means for transmitting a quality of service (QoS) message to a device, the QoS message including a request for a transmission opportunity for sending uplink data to the device, the QoS message comprising within at least one of a sequence control field or a QoS control field;

means for receiving a clear to transmit (CTX) message in response to the QoS message; and

means for transmitting data to the device in response to the CTX message.

22. The apparatus of claim 21, wherein the QoS message comprises a QoS data frame.

23. The apparatus of claim 21, wherein the QoS message comprises a QoS null frame.

24. The apparatus of claim 21, wherein the QoS message comprises a QoS field indicating a buffer size for a plurality of traffic identifiers (TIDs).

25. The apparatus of claim 21, wherein the QoS message comprises a QoS field comprising the indication of transmission power.

26. The apparatus of claim 21, wherein the QoS message comprises a QoS field requesting one or more modulation and coding schemes (MCSs).

27. The apparatus of claim 21, wherein the QoS message comprises a sequence control field indicating a buffer size for a plurality of traffic identifiers (TIDs).

28. The apparatus of claim 21, wherein the QoS message comprises a sequence control field comprising the indication of transmission power.

29. The apparatus of claim 21, wherein the QoS message comprises a sequence control field requesting one or more modulation and coding schemes (MCSs).

30. A non-transitory computer-readable medium comprising code that, when executed, causes an apparatus to:

transmit a quality of service (QoS) message to a device, the QoS message including a request for a transmission opportunity for sending uplink data to the device, the QoS message comprising within at least one of a sequence control field or a QoS control field;

receive a clear to transmit (CTX) message in response to the QoS message; and

transmit data to the device in response to the CTX message.