SYSTEM AND METHOD FOR DATA CHANNEL TRANSMISSION AND RECEPTION

• US 20170164344A1
• Filed: 02/21/2017
• Published: 06/08/2017
• Est. Priority Date: 10/13/2011
• Status: Active Grant

• Current Assignee: Futurewei Technologies Incorporated (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Futurewei Technologies Incorporated (Huawei Investment & Holding Co., Ltd.)
• Inventors: Sartori, Philippe, Berggren, Fredrik, Soong, Anthony C.K.
• Granted Patent: US 11,683,788 B2
• Time in Patent Office: Days
• CPC Class Codes: H04L 5/003 Arrangements for allocating sub-channels of the transmission path
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04W 72/044 based on the type of the allocated resource
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

A method includes allocating, by a communications controller, a first set of resource blocks to an enhanced physical downlink shared channel (ePDSCH), where the ePDSCH has a first starting point and allocating, by the communications controller, a second set of resource blocks to an enhanced physical downlink control channel (ePDCCH). The method also includes identifying, by the communications controller, a second starting point for the ePDSCH, where the second starting point for the ePDSCH is located within a legacy control region, where the first starting point of the ePDCCH is located within the legacy control region, and where the second starting point of the ePDSCH is different than the first starting point of the ePDCCH. Additionally, the method includes signaling, by the communications controller to a user equipment (UE) the second starting point and a number of the second set of resource blocks allocated to the ePDSCH.

Claims

1. A method comprising:

allocating, by a communications controller, a first set of resource blocks to an enhanced physical downlink shared channel (ePDSCH), wherein the ePDSCH has a first starting point;

allocating, by the communications controller, a second set of resource blocks to an enhanced physical downlink control channel (ePDCCH);

identifying, by the communications controller, a second starting point for the ePDSCH, wherein the second starting point for the ePDSCH is located within a legacy control region, wherein the first starting point of the ePDCCH is located within the legacy control region, and wherein the second starting point of the ePDSCH is different than the first starting point of the ePDCCH; and

signaling, by the communications controller to a user equipment (UE) the second starting point and a number of the second set of resource blocks allocated to the ePDSCH.

2. The method of claim 1, further comprising signaling the second starting point in a state of an indicator of a control channel, the state unused in indicating other information.

3. The method of claim 2, wherein the control channel is a physical control format indicator channel.

4. The method of claim 1, further comprising signaling the second starting point in a state of a radio resource control parameter, the state unused in indicating other information.

5. The method of claim 4, wherein the radio resource control parameter is a pdsch-start parameter.

6. The method of claim 1, further comprising signaling the second starting point in a common search space of a control channel.

7. The method of claim 6, wherein the control channel comprises one of a physical downlink control channel and the ePDCCH.

8. The method of claim 1, further comprising signaling the second starting point in a grant of the ePDSCH.

9. The method of claim 1, further comprising signaling the number of the second set of resource blocks allocated to the ePDSCH on an enhanced physical downlink control channel.

10. The method of claim 1, wherein the ePDSCH is scheduled by the ePDCCH.

11. A method comprising:

decoding, by a user equipment (UE), an enhanced physical downlink control channel (ePDCCH) to obtain a set of resource blocks allocated to an enhanced physical shared channel (ePDSCH), wherein the ePDCCH has a first starting point;

determining, by the UE, a second starting point for respective resource elements of the set of resource blocks for the ePDSCH, the second starting point of the ePDSCH located in a control region, wherein the first starting point of the ePDCCH is located within a legacy control region, and wherein the second starting point of the ePDSCH is different than the first starting point of the ePDCCH; and

receiving, by the UE, the ePDSCH in accordance with the second starting point and a number of resource blocks allocated to the ePDSCH.

12. The method of claim 11, wherein determining the second starting point comprises:

receiving a physical control format indicator channel with a first indicator from a communications controller; and

setting the second starting point in accordance to the first indicator.

13. The method of claim 11, wherein determining the second starting point comprises:

receiving a radio resource control message with a radio resource control parameter; and

setting the second starting point in accordance with the radio resource control parameter.

14. The method of claim 11, wherein determining the second starting point comprises:

searching for a second indicator in a common search space of a control channel; and

setting the second starting point in accordance with the second indicator.

15. The method of claim 14, wherein the control channel comprises one of a physical downlink control channel and the ePDCCH.

16. The method of claim 11, wherein determining the second starting point comprises:

receiving a grant for the ePDSCH, the grant including a third indicator; and

setting the second starting point in accordance with the third indicator.

17. The method of claim 11, further comprising decoding the ePDSCH in accordance with the second starting point and the number of resource blocks allocated to the ePDSCH.

18. The method of claim 11, wherein the ePDSCH is scheduled by the ePDCCH.

19. A communications controller comprising:

a processor; and

a non-transitory computer readable storage medium storing programming for execution by the processor, the programming including instructions to;

allocate a first set of resource blocks to an enhanced physical downlink shared channel (ePDSCH), wherein the ePDSCH has a first starting point;

allocate a second set of resource blocks to an enhanced physical downlink control channel (ePDCCH);

identify a second starting point for the ePDSCH, wherein the second starting point for the ePDSCH is located within a legacy control region, wherein the first starting point of the ePDCCH is located within the legacy control region, and wherein the second starting point of the ePDSCH is different than the first starting point of the ePDCCH; and

signal, to a user equipment (UE) the second starting point and a number of the second set of resource blocks allocated to the ePDSCH.

20. A user equipment (UE) comprising:

a processor; and

a non-transitory computer readable storage medium storing programming for execution by the processor, the programming including instructions to;

decode an enhanced physical downlink control channel (ePDCCH) to obtain a set of resource blocks allocated to an enhanced physical shared channel (ePDSCH), wherein the ePDCCH has a first starting point;

determine a second starting point for respective resource elements of the set of resource blocks for the ePDSCH, the second starting point of the ePDSCH located in a control region, wherein the first starting point of the ePDCCH is located within a legacy control region, and wherein the second starting point of the ePDSCH is different than the first starting point of the ePDCCH; and

receive the ePDSCH in accordance with the second starting point and a number of resource blocks allocated to the ePDSCH.