APPARATUSES AND METHODS FOR COMMUNICATING IN A WIRELESS COMMUNICATION NETWORK

• US 20200137795A1
• Filed: 06/20/2017
• Published: 04/30/2020
• Est. Priority Date: 06/20/2017
• Status: Active Grant

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: WANG, Yu, AMIN, Parth
• Granted Patent: US 11,076,423 B2
• Time in Patent Office: Days
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 56/0005 synchronizing of arrival of multiple uplinks
• CPC Class Codes: H04W 74/006 in the downlink, i.e. towards the terminal
• CPC Class Codes: H04W 74/06 using polling
• CPC Class Codes: H04W 80/02 Data link layer protocols
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A method and an access node for communicating in a wireless communication network, the method comprising at an access node obtaining a timing indicator; transmitting to at least one communication device a first frame sequence. The first frame sequence comprises a first portion comprising a first preamble associated with a first communication protocol, a second portion comprising a first polling frame associated with the first communication protocol, and a third portion comprising a second preamble followed by a second polling frame, the second preamble and second polling frame are associated with a second communication protocol. The third portion is multiplexed in the frequency domain with the second portion. The method further comprises providing to the at least one communication device the timing indicator for enabling the access node to control a time of reception of a first portion of a subsequent second frame sequence.

Claims

1. A method for communicating in a wireless communication network, said method performed at an access node comprising:

obtaining a timing indicator;

transmitting to at least one communication device a first frame sequence comprising;

a first portion comprising a first preamble associated with a first communication protocol;

a second portion comprising a first polling frame, associated with the first communication protocol; and

a third portion comprising a second preamble followed by a second polling frame, associated with a second communication protocol, the third portion being multiplexed in a frequency domain with the second portion;

providing to the at least one communication device the timing indicator for enabling the access node to control a time of reception of a first portion of a subsequent second frame sequence from the at least one communication device; and

receiving the first portion of the second frame sequence.

2. The method according to claim 1 wherein the second portion of the first frame sequence consists of the first polling frame.

3. The method according to claim 1 wherein the timing indicator is provided within the first frame sequence.

4. The method according to claim 3 wherein the timing indicator is provided in a Media Access Control (MAC) header.

5. The method according to claim 1 wherein the timing indicator is provided in one of a payload of a control frame, or a payload of a management frame.

6. The method according to claim 1 further comprising:

receiving the first portion of the second frame sequence from a first communication device of the at least one communication device, wherein the first portion of the second frame sequence comprises a third preamble.

7. The method according to claim 6 further comprising:

receiving a second portion of the second frame sequence comprising a fourth preamble from a second communication device of the at least one communication device, wherein the time of reception of the second portion of the second frame sequence is controlled by a preconfigured value.

8. The method according to claim 7 wherein the first portion of the second frame sequence is received prior to receiving the second portion of the second frame sequence.

9. The method according to claim 8 wherein the third preamble is associated with the first communication protocol and the fourth preamble is associated with the second communication protocol.

10. The method according to claim 9 wherein the second portion of the second frame sequence comprises user data.

11. The method according to claim 8 further comprising

receiving a third portion of the second frame sequence comprising user data from the first communication device, wherein the third portion of the second frame sequence is multiplexed with the second portion of the second frame sequence in the frequency domain.

12. The method according to claim 7 wherein the first portion of the second frame sequence is received subsequently to receiving the second portion of the second frame sequence.

13. The method according to claim 12 wherein the third preamble is associated with the second communication protocol and the fourth preamble is associated with the first communication protocol.

14. The method according to claim 13 wherein the first portion of the second frame sequence comprises user data.

15. The method according to claim 12 further comprising

receiving a third portion of the second frame sequence comprising user data from the second communication device, wherein the third portion of the second frame sequence is multiplexed with the first portion of the second frame sequence in the frequency domain.

16. A method for communicating in a wireless communication network, said method comprising performed at a communication device comprising:

receiving from an access node a first frame sequence comprising

a first portion comprising a first preamble associated with a first communication protocol, followed by;

a second portion comprising a first polling frame associated with the first communication protocol; and

a third portion comprising a second preamble followed by a second polling frame, associated with a second communication protocol, the third portion being multiplexed in a frequency domain with the second portion;

decoding one of the first portion and the third portion of the first frame sequence;

obtaining a timing indicator from the access node;

determining a time of transmission of a first portion of a subsequent second frame sequence based on the timing indicator; and

transmitting the first portion of the second frame sequence at the determined time to the access node.

17. The method according to claim 16 wherein obtaining the timing indicator comprises extracting the timing indicator from the first frame sequence.

18. The method according to claim 17 wherein the timing indicator is provided in a Media Access Control (MAC) header.

19. The method according to claim 18 wherein obtaining the timing indicator comprises extracting the timing indicator from one of a payload of a control frame, or a payload of a management frame.

20. The method according to claim 16 wherein the first portion of the second frame sequence comprises a third preamble.

21. The method according to claim 20 further comprising decoding the first portion of the first frame sequence and wherein the third preamble is associated with the first communication protocol.

22. The method according to claim 20 further comprising decoding the third portion of the first frame sequence and wherein the third preamble is associated with the second communication protocol.

23. An access node for communicating in a wireless communication network, wherein said access node comprising:

a processor; and

a memory containing instructions which, when executed by the processor, cause the access node to perform operations to;

obtain a timing indicator;

transmit to at least one communication device a first frame sequence comprising;

a first portion comprising a first preamble associated with a first communication protocol;

a second portion comprising a first polling frame associated with the first communication protocol; and

a third portion comprising a second preamble followed by a second polling frame, associated with a second communication protocol, the third portion being multiplexed in a frequency domain with the second portion;

provide to the at least one communication device the timing indicator for enabling the access node to control a time of reception of a first portion of a second frame sequence from the at least one communication device; and

receive the first portion of the second frame sequence.

24. A communication device for communicating in a wireless communication network, wherein said communication device comprising:

a processor; and

a memory containing instructions which, when executed by the processor, cause the communication device to perform operations to;

receive from an access node a first frame sequence comprising;

a first portion comprising a first preamble associated with a first communication protocol;

a second portion comprising a first polling frame associated with the first communication protocol; and

a third portion comprising a second preamble followed by a second polling frame, associated with a second communication protocol, the third portion being multiplexed in a frequency domain with the second portion;

decode one of the first portion and the second portion of the first frame sequence;

obtain a timing indicator from the access node;

determine a time of transmission of a first portion of a second frame sequence based on the timing indicator; and

transmit the first portion of the second frame sequence at the determined time to the access node.

25-29. -29. (canceled)

30. A non-transitory computer readable storage medium containing instructions which, when executed by a processor of an access node, are capable of causing the access node to perform operations for communicating in a wireless communication network comprising:

obtaining a timing indicator;

transmitting to at least one communication device a first frame sequence comprising;

a first portion comprising a first preamble associated with a first communication protocol;

a second portion comprising a first polling frame, associated with the first communication protocol; and

a third portion comprising a second preamble followed by a second polling frame, associated with a second communication protocol, the third portion being multiplexed in a frequency domain with the second portion;

providing to the at least one communication device the timing indicator for enabling the access node to control a time of reception of a first portion of a subsequent second frame sequence from the at least one communication device; and

receiving the first portion of the second frame sequence.

31. A non-transitory computer readable storage medium containing instructions which, when executed by a processor of a communication device, are capable of causing the communication device to perform operations for communicating in a wireless communication network comprising:

receiving from an access node a first frame sequence comprising

a first portion comprising a first preamble associated with a first communication protocol;

a second portion comprising a first polling frame associated with the first communication protocol; and

a third portion comprising a second preamble followed by a second polling frame, associated with a second communication protocol, the third portion being multiplexed in a frequency domain with the second portion;

decoding one of the first portion and the third portion of the first frame sequence;

obtaining a timing indicator from the access node;

determining a time of transmission of a first portion of a subsequent second frame sequence based on the timing indicator; and

transmitting the first portion of the second frame sequence at the determined time to the access node.