Method and system for enabling resource block bundling in LTE-A systems

• US 9,516,655 B2
• Filed: 12/15/2014
• Issued: 12/06/2016
• Est. Priority Date: 01/11/2010
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Liu, Lingjia, Nam, Young-Han, Zhang, Jianzhong
• Primary Examiner(s): Shah, Chirag
• Assistant Examiner(s): REDDIVALAM, SRINIVASA R
• Application Number:
  US14/571,171
• Publication Number:
  US 20150146658A1
• Time in Patent Office: 722 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: H04B 7/0478 Special codebook structures directed to feedback optimisation
• CPC Class Codes: H04L 25/03343 Arrangements at the transmitter end
• CPC Class Codes: H04L 25/03898 codebook-based design selection of codebook or precoding matrix for MIMO diversity systems H04B7/0456
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04W 72/52 based on load
• CPC Class Codes: H04W 72/563 of the wireless resources

Abstract

A base station is provided. The base station includes a transmit path circuitry to transmit an indication of whether a subscriber station is configured with precoding matrix indicator/rank indicator (PMI/RI) reporting. The transmit path circuitry sets a pre-coding granularity to multiple physical resource blocks in the frequency domain to perform a same pre-coding over a bundled resource block if the subscriber station is configured with PMI/RI reporting. The bundled resource block includes multiple consecutive physical resource blocks in the frequency domain. The base station also includes a receive path circuitry to receive feedback from the subscriber station.

Claims

1. A base station, comprising:

a transmit path circuitry configured to;

transmit information for feedback to a subscriber station,

set a same precoding to be applied to all physical resource blocks within a resource block group when precoding matrix indicator/rank indicator (PMI/RI) feedback is configured according to the information for feedback and a predetermined transmission mode is configured, and

set a first precoding to be applied to one or more first physical resource blocks within the resource block group and a second precoding to be applied to one or more second physical resource blocks within the resource block group when one of the PMI/RI feedback is not configured or the predetermined transmission mode is not configured; and

a receive path circuitry configured to receive a feedback from the subscriber station.

2. The base station of claim 1, wherein the predetermined transmission mode is 9 or 10.

3. The base station of claim 1, wherein a number of the physical resource blocks within the resource block group is determined based on a system bandwidth.

4. The base station of claim 1, wherein the resource block group comprises at least one continuous physical resource block.

5. The base station of claim 1, wherein the transmit path circuitry is configured to set the same precoding to be applied to one physical resource block when the PMI/RI feedback is not configured.

6. A method of operating a base station, the method comprising:

transmitting information for feedback to a subscriber station;

setting a same precoding to be applied to all physical resource blocks within a resource block group when precoding matrix indicator/rank indicator (PMI/RI) feedback is configured according to the information for feedback and a predetermined transmission mode is configured;

setting a first precoding to be applied to one or more first physical resource blocks within the resource block group and a second precoding to be applied to one or more second physical resource blocks within the resource block group when one of the PMI/RI feedback is not configured or the predetermined transmission mode is not configured and

receiving a feedback from the subscriber station.

7. The method of claim 6, wherein the predetermined transmission mode is 9 or 10.

8. The method of claim 6, wherein a number of the physical resource blocks within the resource block group is determined based on a system bandwidth.

9. The method of claim 6, wherein the resource block group comprises at least one continuous physical resource block.

10. The method of claim 6, wherein the same precoding is set to be applied to one physical resource block when the PMI/RI feedback is not configured.

11. A subscriber station, comprising:

a receive path circuitry configured to;

receive from a base station information for feedback,

identify that a same precoding is applied to all physical resource blocks within a resource block group when precoding matrix indicator/rank indicator (PM/RI) feedback is configured according to the information for feedback and a predetermined transmission mode is configured, and

identify that a first precoding is applied to one or more first physical resource blocks within the resource block group and that a second precoding is applied to one or more second physical resource blocks within the resource block group when one of the PMI/RI feedback is not configured or the predetermined transmission mode is not configured; and

a transmit path circuitry configured to transmit a feedback to the base station.

12. The subscriber station of claim 11, wherein the predetermined transmission mode is 9 or 10.

13. The subscriber station of claim 11, wherein a number of the physical resource blocks within the resource block group is determined based on a system bandwidth.

14. The subscriber station of claim 11, wherein the resource block group comprises at least one continuous physical resource block.

15. The subscriber station of claim 11, wherein the receive path circuitry is configured to identify that the same precoding is applied to one physical resource block when the PMI/RI feedback is not configured.

16. A method of operating a subscriber station, the method comprising:

receiving, from a base station, information for feedback;

identifying that a same precoding is applied to all physical resource blocks within a resource block group when precoding matrix indicator/rank indicator (PMI/RI) feedback is configured according to the information for feedback and a predetermined transmission mode is configured;

identifying that a first precoding is applied to one or more first physical resource blocks within the resource block group and that a second precoding is applied to one or more second physical resource blocks within the resource block group when one of the PMI/RI feedback is not configured or the predetermined transmission mode is not configured; and

transmitting a feedback to the base station.

17. The method of claim 16, wherein the predetermined transmission mode is 9 or 10.

18. The method of claim 16, wherein a number of the physical resource blocks within the resource block group is determined based on a system bandwidth.

19. The method of claim 16, wherein the resource block group comprises at least one continuous physical resource block.

20. The method of claim 16, wherein the same precoding is identified as applied to one physical resource block when the PMI/RI feedback is not configured.