FILTER BANK-BASED CHANNEL STATE REPORT AND RESOURCE ALLOCATION METHOD AND APPARATUS FOR USE IN WIRELESS COMMUNICATION SYSTEM

• US 20160080961A1
• Filed: 09/11/2015
• Published: 03/17/2016
• Est. Priority Date: 09/12/2014
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Kyeongyeon, Seol, Jiyun, KIM, Chanhong, Kim, Taeyoung, Yun, Yeohun, HO, Ka Ming, LEE, Byunghwan
• Granted Patent: US 9,673,949 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 27/26416 Filtering per subcarrier, e.g. filterbank multicarrier [FBMC]
• CPC Class Codes: H04L 27/2646 using feedback from receiver for adjusting OFDM transmission parameters, e.g. transmission timing or guard interval length
• CPC Class Codes: H04L 27/2654 Filtering per subcarrier, e.g. filterbank multicarrier [FBMC]
• CPC Class Codes: H04L 5/0035 Resource allocation in a cooperative multipoint environment
• CPC Class Codes: H04L 5/0037 Inter-user or inter-terminal allocation
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04L 5/006 Quality of the received signal, e.g. BER, SNR, water filling
• CPC Class Codes: H04L 5/0085 when channel conditions change
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic
• CPC Class Codes: H04W 72/542 using measured or perceived quality

Abstract

The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A filter bank-based channel state report and resource allocation method and an apparatus for use in a wireless communication system are provided. The channel state report method of a receiver in a filter bank-based wireless communication system includes receiving filter bank information on at least two filter banks from a transmitter, measuring a channel state of the each of at least two filter banks based on the filter bank information, and transmitting channel state information, which is generated based on the measurement result, to the transmitter.

Claims

1. A channel state report method of a receiver in a filter bank-based wireless communication system, the method comprising:

receiving filter bank information on at least two filter banks from a transmitter;

measuring a channel state of each of the at least two filter banks based on the filter bank information; and

transmitting channel state information, which is generated based on the measurement result, to the transmitter.

2. The method of claim 1, wherein the filter bank information comprises at least one of a number of filter banks, a number of available frequency resources or nulling resources per filter bank, a relationship between logical subcarrier resources and real physical subcarriers in each filter bank, a position of a pilot signal per filter bank, and a resource allocation type.

3. The method of claim 1, further comprising receiving resource allocation information from the transmitter,

wherein data symbols indicated by the resource allocation information are mapped to one of resource blocks (RBs) associated with the at least two filter banks or all of the RBs associated with the at least two filter banks,

wherein the filter bank information is received from the transmitter through system information or dedicated signaling,

wherein the data symbols indicated by the resource allocation information are mapped to subcarriers, consecutive or inconsecutive, in each RB.

4. The method of claim 1, wherein the at least two filter banks comprise a first filter bank and a second filter bank that are associated with one of a plurality of resource block (RB) types including a first RB type associated with the first filter bank, a second RB type associated with the second filter bank, and a third RB type associated with both the first and second filter banks.

5. The method of claim 1, wherein the measuring of the channel state comprises measuring, when a pilot signal is transmitted through all of the at least two filter banks, measuring the channel state of respective filter banks based on the pilot signal received through the respective filter banks.

6. The method of claim 1, wherein the measuring of the channel state comprises:

measuring, when a pilot signal is received through a first filter bank of the at least two filter banks, the channel state of the first filter bank based on the pilot signal received through the first filter bank;

recovering the channel information between the transmitter and the receiver based on the pilot signal received through the first filter bank; and

measuring the channel state of each of the respective filter banks by applying the recovered channel information to the remaining filter banks other than the first filter bank.

7. A channel state information reception and resource allocation method of a transmitter in a filter bank-based wireless communication system, the method comprising:

transmitting filter bank information on at least two filter banks to at least one receiver;

receiving channel state information measured based on the filter bank information from the receiver; and

transmitting resource allocation information generated based on the channel state information to the receiver.

8. The method of claim 9, wherein the filter bank information comprises at least one of a number of filter banks, a number of available frequency resources or nulling resources per filter bank, a relationship between logical subcarrier resources and real physical subcarriers in each filter bank, a position of a pilot signal per filter bank, and a resource allocation type.

9. The method of claim 7, wherein data symbols indicated by the resource allocation information are mapped to one of resource blocks (RBs) associated with the at least two filter banks or all of the RBs associated with the at least two filter banks,

wherein the filter bank information is transmitted to the receiver through system information or dedicated signaling, and

wherein the data symbols indicated by the resource allocation information are mapped to subcarriers, consecutive or inconsecutive, in each RB.

10. The method of claim 7, wherein the at least two filter banks comprise a first filter bank and a second filter bank that are associated with one of a plurality of resource block (RB) types including a first RB type associated with the first filter bank, a second RB type associated with the second filter bank, and a third RB type associated with both the first and second filter banks.

11. The method of claim 7, wherein a channel state of each of the at least two filter banks are measured based on a pilot signal received through respective filter banks when the pilot signal is transmitted through all of the at least two filter banks.

12. The method of claim 7, wherein a channel state of a first filter bank of the at least two filter banks is measured based on a pilot signal received through the first filter bank, and the channel state of remaining filter banks other than the first filter bank, is measured by recovering the channel information between the transmitter and the receiver based on the pilot signal received through the first filter bank and applying the remaining filter banks, excluding the first filter bank, to the recovered channel information.

13. A receiver which reports a channel state in a filter bank-based wireless communication system, the receiver comprising:

a transceiver configured to transmit and receive signals to and from a transmitter; and

a controller configured to control to;

receive filter bank information on at least two filter banks from a transmitter,

measure a channel state of each of the at least two filter banks based on the filter bank information, and

transmitting channel state information, which is generated based on the measurement result, to the transmitter.

14. The receiver of claim 13, wherein the filter bank information comprises at least one of a number of filter banks, a number of available frequency resources or nulling resources per filter bank, a relationship between logical subcarrier resources and real physical subcarriers in each filter bank, a position of a pilot signal per filter bank, and a resource allocation type.

15. The receiver of claim 13, wherein the controller is further configured to control to receive resource allocation information from the transmitter, and

wherein data symbols indicated by the resource allocation information are mapped to one of resource blocks (RBs) associated with the at least two filter banks or all of the RBs associated with the at least two filter banks,

wherein the filter bank information is received from the transmitter through system information or dedicated signaling,

wherein the data symbols indicated by the resource allocation information are mapped to subcarriers, consecutive or inconsecutive, in each RB.

16. The receiver of claim 13, wherein the at least two filter banks comprises a first filter bank and a second filter bank that are associated with one of a plurality of resource block (RB) types including a first RB type associated with the first filter bank, a second RB type associated with the second filter bank, and a third RB type associated with both the first and second filter banks.

17. The receiver of claim 13, wherein the controller is further configured to control to measure, when a pilot signal is transmitted through all of the at least two filter banks, measuring the channel state of respective filter banks based on the pilot signal received through the respective filter banks.

18. The receiver of claim 13, wherein the controller is further configured to control to:

measure, when a pilot signal is received through a first filter bank of the at least two filter banks, the channel state of the first filter bank based on the pilot signal received through the first filter bank,

recover the channel information between the transmitter and the receiver based on the pilot signal received through the first filter bank, and

measure the channel state of each of the respective filter banks by applying the recovered channel information to the remaining filter banks other than the first filter bank.

19. A transmitter which allocates resources based on channel state information in a filter bank-based wireless communication system, the transmitter comprising:

a transceiver configured to transmit and receive signals to and from a receiver; and

a controller configured to control to;

transmit filter bank information on at least two filter banks to at least one receiver,

receive channel state information measured based on the filter bank information from the receiver, and

transmit resource allocation information generated based on the channel state information to the receiver.

20. The transmitter of claim 19, wherein the filter bank information comprises at least one of a number of filter banks, a number of available frequency resources or nulling resources per filter bank, a relationship between logical subcarrier resources and real physical subcarriers in each filter bank, a position of pilot signal per filter bank, and a resource allocation type.

21. The transmitter of claim 19, wherein data symbols indicated by the resource allocation information are mapped to one of resource blocks (RBs) associated with the at least two filter banks or all of the RBs associated with the at least two filter banks,

wherein the filter bank information is transmitted to the receiver through system information or dedicated signaling, and

wherein the data symbols indicated by the resource allocation information are mapped to subcarriers, consecutive or inconsecutive, in each RB.

22. The transmitter of claim 19, wherein the at least two filter banks comprise a first filter bank and a second filter bank that are associated with one of a plurality of resource block (RB) types including a first RB type associated with the first filter bank, a second RB type associated with the second filter bank, and a third RB type associated with both the first and second filter banks.

23. The transmitter of claim 19, wherein a channel state of each of the at least two filter banks are measured based on a pilot signal received through respective filter banks when the pilot signal is transmitted through all of the at least two filter banks.

24. The transmitter of claim 19, wherein a channel state of a first filter bank of the at least two filter banks is measured based on a pilot signal received through the first filter bank, and the channel state of remaining filter banks other than the first filter bank is measured by recovering the channel information between the transmitter and the receiver based on the pilot signal received through the first filter bank and applying the remaining filter banks, excluding the first filter bank, to the recovered channel information.