COMMUNICATION TERMINAL AND A METHOD FOR REPORTING A CHANNEL QUALITY

• US 20150230237A1
• Filed: 01/09/2015
• Published: 08/13/2015
• Est. Priority Date: 02/11/2014
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Intel IP Corporation (Intel Corporation)
• Inventors: Clevorn, Thorsten
• Granted Patent: US 9,398,575 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 1/00 Arrangements for detecting or preventing errors in the information received correcting synchronisation H04L7/00
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/0034 where the transmitter decides based on inferences, e.g. use of implicit signalling
• CPC Class Codes: H04L 1/1671 the supervisory signal being transmitted together with control information
• CPC Class Codes: H04L 1/1854 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 1/20 using signal quality detector
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/542 using measured or perceived quality
• CPC Class Codes: H04W 88/02 Terminal devices

Abstract

A communication terminal comprising a determiner configured to determine whether a communication service used by the communication terminal via a communication channel is of a predetermined class and to determine a channel quality of the communication channel to be indicated to a communication network based on whether the communication service is of the predetermined class and a transmitter configured to indicate the channel quality to the communication network.

Claims

1. A communication terminal comprising:

a determiner configured to determine whether a communication service used by the communication terminal via a communication channel is of a predetermined class and to determine a channel quality of the communication channel to be indicated to a communication network based on whether the communication service is of the predetermined class; and

a transmitter configured to indicate the channel quality to the communication.

2. The communication terminal of claim 1, wherein the transmitter is configured to indicate the channel quality to the communication network by transmitting a channel quality indicator corresponding to the channel quality.

3. The communication terminal of claim 1, wherein the transmitter is configured to indicate the channel quality to the communication network by transmitting acknowledgement messages at a rate corresponding to the channel quality.

4. The communication terminal of claim 1, wherein the transmitter is configured to indicate the channel quality to the communication network by transmitting negative acknowledgement messages for data packets or omitting acknowledgement messages and negative acknowledgement messages for data packets at a rate corresponding to the channel quality.

5. The communication terminal of claim 1, wherein the determiner is configured to determine the channel quality based on a candidate channel quality, wherein, if the communication service is of the predetermined class, the determiner reduces the candidate channel quality and determines the reduced candidate channel quality as the channel quality.

6. The communication terminal of claim 1, wherein the communication service is of the predetermined class if the data communicated by the communication service is of a predetermined data type.

7. The communication terminal of claim 6, wherein the predetermined data type includes speech data.

8. The communication terminal of claim 1, wherein the communication service is of the predetermined class if the data communicated by the communication service is real-time data.

9. The communication terminal of claim 1, wherein the predetermined class is a network layer or higher layer service class.

10. The communication terminal of claim 1, wherein the predetermined class is a transport layer or higher layer service class.

11. The communication terminal of claim 1, wherein the predetermined class is the class of real-time data transmission services.

12. The communication terminal of claim 1, wherein the predetermined class is the class of speech or voice data transmission services.

13. The communication terminal of claim 1, wherein the predetermined class is the class of voice calls.

14. The communication terminal of claim 1, wherein the predetermined class is a class of latency sensitive communication services.

15. The communication terminal of claim 1, wherein the predetermined class is a class of latency sensitive communication services.

16. The communication terminal of claim 1, wherein the predetermined class is a class of error rate sensitive communication services.

17. The communication terminal of claim 1, wherein the communication channel is provided by the communication network.

18. The communication terminal of claim 1, wherein the determiner is further configured to determine a load of the communication network and to determine the channel quality of the communication channel to be indicated to the communication network based on the load of the communication network.

19. A method for reporting a channel quality comprising:

determining whether a communication service used by the communication terminal via a communication channel is of a predetermined class;

determining a channel quality of the communication channel to be indicated to a communication network based on whether the communication service is of the predetermined class;

indicating the channel quality to the communication network.

20. A computer readable medium having recorded instructions thereon which, when executed by a processor, make the processor perform a method for performing radio communication according to claim 19.