Method and apparatus for wireless communication on multiple spectrum bands

• US 9,942,912 B2
• Filed: 09/18/2015
• Issued: 04/10/2018
• 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:
  US14/858,546
• Publication Number:
  US 20160014798A1
• Time in Patent Office: 935 Days
• 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 communication, the method comprising:

acquiring information for an unlicensed frequency on a licensed frequency;

receiving, on the licensed frequency from a base station, first control information for a first resource allocation on the licensed frequency;

receiving, on the unlicensed frequency from the base station, second control information for a second resource allocation on the unlicensed frequency;

receiving first data on the licensed frequency based on the first control information;

receiving second data on the unlicensed frequency based on the second control information;

generating data packets for the first data at a second function corresponding to the licensed frequency, and generating data packets for the second data at a second function corresponding to the unlicensed frequency; and

generating data packets for the first data and data packets for the second data at a first function corresponding to the licensed frequency and the unlicensed frequency.

2. The method of claim 1, further comprising:

receiving information for activating the unlicensed frequency on the licensed frequency.

3. The method of claim 1, wherein the unlicensed frequency is a wireless fidelity (WiFi) frequency.

4. A method of a base station for communication, the method comprising:

transmitting information for an unlicensed frequency on a licensed frequency;

transmitting, on the licensed frequency, first control information for a first resource allocation on the licensed frequency;

transmitting, on the unlicensed frequency, second control information for a second resource allocation on the unlicensed frequency;

generating first data packets for first data and second data at a first function corresponding to the licensed frequency and the unlicensed frequency;

generating second data packets for the first data based on the first data packets at a second function corresponding to the licensed frequency and generating second data packets for the second data based on the first data packets at a second function corresponding to the unlicensed frequency;

transmitting the second data packet for the first data on the licensed frequency based on the first resource allocation; and

transmitting the second data packet for the second data on the unlicensed frequency based on the second resource allocation.

5. The method of claim 4, further comprising:

transmitting information for activating the unlicensed frequency on the licensed frequency.

6. The method of claim 4, wherein the unlicensed frequency is a wireless fidelity (WiFi) frequency.

7. A user equipment (UE) for communication, the UE comprising:

a transceiver for transmitting and receiving a signal; and

a controller configured to;

acquire information for an unlicensed frequency on a licensed frequency,

control the transceiver to receive, on the licensed frequency from a base station, first control information for a first resource allocation on the licensed frequency,

control the transceiver to receive, on the unlicensed frequency from the base station, second control information for a second resource allocation on the unlicensed frequency,

control the transceiver to receive first data on the licensed frequency based on the first control information,

control the transceiver to receive second data on the unlicensed frequency based on the second control information,

generate data packets for the first data at a second function corresponding to the licensed frequency, and generate data packets for the second data at a second function corresponding to the unlicensed frequency, and

combine data packets for the first data and data packets for the second data at a first function corresponding to the licensed frequency and the unlicensed frequency.

8. The UE of claim 7, wherein the controller controls the transceiver to receive information for activating the unlicensed frequency on the licensed frequency.

9. The UE of claim 7, wherein the unlicensed frequency is a wireless fidelity (WiFi) frequency.

10. A base station for communication, the base station comprising:

a transceiver for transmitting and receiving a signal; and

a controller configured to;

control the transceiver to transmit information for a unlicensed frequency on a licensed frequency,

control the transceiver to transmit, on the licensed frequency, first control information for a first resource allocation on the licensed frequency,

control the transceiver to transmit, on the unlicensed frequency, second control information for a second resource allocation on the unlicensed frequency,

generate first data packets for first data and second data at a first function corresponding to the licensed frequency and the unlicensed frequency,

split the first data packets to generate second data packets for the first data based on the first data packets at a second function corresponding to the licensed frequency and to generate second data packets for the second data based on the first data packets at a second function corresponding to the unlicensed frequency,

control the transceiver to transmit the second data packet for the first data on the licensed frequency based on the first resource allocation, and

control the transceiver to transmit the second data packet for the second data on the unlicensed frequency based on the second resource allocation.

11. The base station of claim 10, wherein the controller controls the transceiver to transmit information for activating the unlicensed frequency on the licensed frequency.

12. The base station of claim 10, wherein the unlicensed frequency is a wireless fidelity (WiFi) frequency.