Method and apparatus for wireless communication on multiple spectrum bands

• US 9,468,015 B2
• Filed: 05/20/2014
• Issued: 10/11/2016
• Est. Priority Date: 12/03/2010
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Cheng, Shan, Taori, Rakesh
• Primary Examiner(s): ANWAR, MOHAMMAD S
• Application Number:
  US14/282,673
• Publication Number:
  US 20140254524A1
• Time in Patent Office: 875 Days
• Field of Search: 370/329, 370/330, 370/332
• US Class Current: 1/1
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 5/0005 Time-frequency
• CPC Class Codes: H04L 5/0042 intra-user or intra-terminal allocation
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/006 Quality of the received signal, e.g. BER, SNR, water filling
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 72/1215 for collaboration of different radio technologies
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

A method and apparatus for simultaneously communicating on at least two carrier frequencies, of which at least one carrier frequency is a licensed band and at least one carrier frequency is an unlicensed band, includes broadcasting an operating status of the unlicensed band to a receiver device, collecting feedback data regarding channel conditions from the receiver device for both the licensed band and unlicensed band, determining, when a bandwidth request is received from the receiver device, whether to use the unlicensed band based on the channel conditions, transmitting an unlicensed band scheduling indication to the receiver device, and communicating with the receiver device using both the licensed band and the unlicensed band according to the transmitted unlicensed band scheduling indication.

Claims

1. A method of a User Equipment (UE) for communicating in a wireless communication system comprising a first network and a second network, the method comprising:

transmitting first capability information for the UE to a first network node via the first network on a first frequency, the first capability information indicating that the UE is available for data communication with the first network node via the second network on a second frequency which is distinct from the first frequency;

receiving, after transmitting the first capability information, a first control message to activate data communication via the second network;

monitoring first control information for the first network on the first frequency for receiving a first data packet; and

monitoring second control information for the second network on the second frequency for receiving a second data packet,

wherein the first data packet and the second data packet are distributed by the first network node.

2. The method of claim 1, wherein the first capability information comprises at least one of operating carrier frequency information, supported wireless protocol information, and supported frequency information.

3. The method of claim 1, further comprising:

measuring a channel status of both the first network and the second network;

generating channel status information based on the measured channel status; and

transmitting the channel status information to the first network node.

4. The method of claim 1, further comprising:

transmitting a scheduling request message to the first network node.

5. The method of claim 1, further comprising:

receiving a second control message to deactivate the second network.

6. A User Equipment (UE) for communicating with a wireless communication system comprising a first network and a second network, the UE comprising:

a transceiver configured to transmit or receive a signal; and

a controller configured to;

transmit first capability information for the UE to a first network node via the first network on a first frequency, the first capability information indicating that the UE is available for data communication with the first network node via the second network on a second frequency which is distinct from the first frequency,

receive, after transmitting the first capability information, a first control message to activate data communication via the second network, and

monitor first control information for the first network on the first frequency for receiving a first data packet, and second control information for the second network on the second frequency for receiving a second data packet,

wherein the first data packet and the second data packet are distributed by the first network node.

7. The UE of claim 6, wherein the first capability information comprises at least one of operating carrier frequency information, supported wireless protocol information, and supported frequency information.

8. The UE of claim 6, wherein the controller is further configured to measure a channel status of both the first network and the second network, to generate channel status information based on the measured channel status, and to transmit the channel status information to the first network node.

9. The UE of claim 6, wherein the controller is further configured to transmit a scheduling request message to the first network node.

10. The UE of claim 6, wherein the controller is further configured to receive a second control message to deactivate the second network.

11. A method for serving a User Equipment (UE) of a first network node in a wireless communication system comprising a first network and a second network, the method comprising:

receiving, from the UE, first capability information for the UE on a first frequency, the first capability information indicating that the UE is available for data communication with the first network node via the second network on a second frequency which is distinct from the first frequency;

transmitting, to the UE, in response to the received first capability information, a first control message to activate data communication via the second network;

transmitting, to the UE, first control information for the first network on the first frequency for transmitting a first data packet; and

transmitting, to the UE, second control information for the second network on the second frequency for transmitting a second data packet,

wherein the first network node distributes the first data packet and the second data packet.

12. The method of claim 11, wherein the first capability information comprises at least one of operating carrier frequency information, supported wireless protocol information, and supported frequency information.

13. The method of claim 11, further comprising:

receiving, from the UE, channel status information including a channel status of both the first network and the second network.

14. The method of claim 11, further comprising:

receiving a scheduling request message from the UE.

15. The method of claim 11, further comprising:

transmitting a second control message to deactivate the second network.

16. A first network node for serving a User Equipment (UE) in a wireless communication system comprising a first network and a second network, the first network node comprising:

a transceiver configured to transmit or receive a signal; and

a controller configured to;

receive, from the UE, first capability information for the UE on a first frequency, the first capability information indicating that the UE is available for data communication with the first network node via the second network on a second frequency which is distinct from the first frequency,

transmit, to the UE, in response to the received first capability information, a first control message to activate data communication via the second network,

transmit, to the UE, first control information for the first network on the first frequency for transmitting a first data packet, and

transmit, to the UE, second control information for the second network on the second frequency for transmitting a second data packet,

wherein the first network node distributes the first data packet and the second data packet.

17. The first network node of claim 16, wherein the first capability information comprises at least one of operating carrier frequency information, supported wireless protocol information, and supported frequency information.

18. The first network node of claim 16, wherein the controller is configured to receive channel status information, including a channel status of both the first network and the second network, from the UE.

19. The first network node of claim 16, wherein the controller is further configured to receive a scheduling request message from the UE.

20. The first network node of claim 16, wherein the controller is further configured to transmit a second control message to deactivate the second network.