Multi-Carrier Operation For Wireless Systems

• US 20140233502A1
• Filed: 04/28/2014
• Published: 08/21/2014
• Est. Priority Date: 05/08/2002
• Status: Active Grant

• Current Assignee: Malikie Innovations Limited (Key Patent Innovations Limited)
• Original Assignee: Blackberry Limited
• Inventors: Fong, Mo-Han, Yu, Dong-Sheng, Nikopourdeilami, Hosein
• Granted Patent: US 9,100,964 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 27/26 Systems using multi-frequency codes H04L27/32 takes precedence
• CPC Class Codes: H04L 5/0057 Physical resource allocation for CQI
• CPC Class Codes: H04W 56/0005 synchronizing of arrival of multiple uplinks
• CPC Class Codes: H04W 72/02 Selection of wireless resources by user or terminal
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

The present disclosure generally relates to an uplink control signal design for wireless system. One example method of a subscriber station (SS) includes performing network entry in a multi-carrier wireless environment using a primary carrier, receiving timing information corresponding to the primary carrier, receiving a first control signaling via the primary carrier, the first control signaling assigning at least one secondary carrier, transmitting uplink data via the secondary carrier using an uplink transmission timing of the secondary carrier, the uplink transmission timing of the secondary carrier being assigned the same as an uplink transmission timing of the primary carrier, and determining an adjustment of the uplink transmission timing or frequency of the secondary carrier.

Claims

1. (canceled)

2. A method of a subscriber station (SS) comprising:

performing network entry in a multi-carrier wireless environment using a primary carrier;

receiving timing information corresponding to the primary carrier;

receiving a first control signaling via the primary carrier, the first control signaling assigning at least one secondary carrier;

transmitting uplink data via the secondary carrier using an uplink transmission timing of the secondary carrier, the uplink transmission timing of the secondary carrier being assigned the same as an uplink transmission timing of the primary carrier; and

determining an adjustment of the uplink transmission timing or frequency of the secondary carrier.

3. The method of claim 2, wherein the primary carrier corresponds to the carrier used for network entry.

4. The method of claim 2, wherein the primary carrier contains a synchronization channel.

5. The method of claim 2, further comprising receiving a second control signaling via the primary carrier, the second control signaling changing the primary carrier.

6. The method of claim 2, wherein the primary carrier carries voice information.

7. The method of claim 6, wherein the primary carrier carries real-time services to a user of the SS.

8. The method of claim 7, wherein the secondary carrier provides data services to a user of the SS.

9. The method of claim 8, wherein the primary carrier is code division multiplexed.

10. The method of claim 9, wherein the secondary carrier is time division multiplexed.

11. The method of claim 2, wherein the SS is responsive to a control signal sent from a base station (BS) over the primary carrier to trigger an UL transmission on the selected secondary carrier.

12. The method of claim 2, wherein modifying the uplink transmission timing of the second carrier is performed independently of the uplink transmission timing of the primary carrier.

13. An apparatus comprising:

a transceiver; and

a processor configured to;

perform network entry of a subscriber station (SS) in a multi-carrier wireless environment using a primary carrier;

receive timing information corresponding to the primary carrier;

receive a first control signaling via the primary carrier, the first control signaling assigning at least one secondary carrier;

transmit uplink data via the secondary carrier using an uplink transmission timing of the secondary carrier, the uplink transmission timing of the secondary carrier being assigned the same as an uplink transmission timing of the primary carrier; and

determining an adjustment of the uplink transmission timing or frequency of the secondary carrier.

14. The apparatus of claim 13, wherein the primary carrier corresponds to the carrier used for network entry.

15. The apparatus of claim 13, wherein the primary carrier contains a synchronization channel.

16. The apparatus of claim 13, the processor further configured to receive a second control signaling via the primary carrier, the second control signaling changing the primary carrier.

17. The apparatus of claim 13, wherein the primary carrier carries voice information.

18. The apparatus of claim 17, wherein the primary carrier carries real-time services to a user of the SS.

19. The apparatus of claim 18, wherein the secondary carrier provides data services to a user of the SS.

20. The apparatus of claim 19, wherein the primary carrier is code division multiplexed.

21. The apparatus of claim 20, wherein the secondary carrier is time division multiplexed.

22. The apparatus of claim 13, wherein the SS is responsive to a control signal sent from a base station (BS) over the primary carrier to trigger an UL transmission on the selected secondary carrier.

23. The apparatus of claim 13, wherein modifying the uplink transmission timing of the second carrier is performed independently of the uplink transmission timing of the primary carrier.

24. A method of a subscriber station (SS) comprising:

performing network entry in a multi-carrier wireless environment using a primary carrier;

receiving timing information corresponding to the primary carrier;

receiving a first control signaling via the primary carrier, the first control signaling assigning at least one secondary carrier;

initially assigning an uplink transmission timing of the secondary carrier based on an uplink transmission timing of the primary carrier; and

determining an adjustment of the uplink transmission timing or frequency of the secondary carrier.