System and method for autonomous combining

• US 9,484,989 B2
• Filed: 10/29/2010
• Issued: 11/01/2016
• Est. Priority Date: 12/17/2008
• Status: Active Grant

• Current Assignee: Malikie Innovations Limited (Key Patent Innovations Limited)
• Original Assignee: Blackberry Limited
• Inventors: Cai, Zhijun, Womack, James Earl, Yu, Yi
• Primary Examiner(s): Mui, Gary
• Application Number:
  US12/916,214
• Publication Number:
  US 20110044234A1
• Time in Patent Office: 2,195 Days
• Field of Search: 370/401, 370/476, 370/338, 370/474, 370/475, 370/501, 370/315
• US Class Current: 1/1
• CPC Class Codes: H04B 7/022 Site diversity; Macro-diversity using two or more spaced independent antennas H04B7/04
• CPC Class Codes: H04B 7/026 Co-operative diversity, e.g. using fixed or mobile stations as relays

Abstract

A user agent capable of carrying out autonomous combining. The user agent can be implemented as a processor configured to promote receiving a first signal from an access node and a second signal from a relay node. The processor may be further configured to combine the first and second signals.

Claims

1. An access node comprising:

a transmitter;

a storage device; and

a processor configured to execute instructions stored on the storage device such that when executed, cause the transmitter to;

transmit an indication corresponding to one of a plurality of relay nodes to a user agent;

transmit a first transmission to the user agent, the first transmission containing a first data; and

transmit an instruction to the user agent to instruct the user agent to enable combining, wherein the user agents separately demodulates portions of the first transmission and a second transmission containing a second data from the one of a plurality of relay nodes and combines portions of the first and second data.

2. The access node of claim 1, wherein the indication comprises an address including a first set of bits and a second set of bits, wherein the first set of bits identifies the corresponding relay node and wherein the second set of bits identifies an address corresponding to the user agent.

3. The access node of claim 1, wherein the processor is further configured to execute instructions stored on the storage device such that when executed, cause the transmitter to:

transmit a signal to a particular user agent to instruct the particular user agent to disable autonomous combining.

4. The access node of claim 3, wherein the processor is further configured to execute instructions stored on the storage device such that when executed, cause the transmitter to:

transmit another signal to the particular user agent to instruct the particular user agent to re-enable autonomous combining to improve data reception from the access node.

5. The access node of claim 1, wherein the access node is configured to:

add a field to a physical downlink control channel (PDCCH) signal, wherein the field includes an index to identify a medium access control packet data unit (MAC PDU) at the user agent.

6. A method implemented in an access node, the method comprising:

transmitting an indication corresponding to one of a plurality of relay nodes to a user agent;

transmitting a first transmission to the user agent, the first transmission containing a first data; and

transmitting an instruction to the user agent to instruct the user agent to enable combining, wherein the user agents separately demodulates portions of the first transmission and a second transmission containing a second data from the one of a plurality of relay nodes and combines portions of the first and second data.

7. The method of claim 6, wherein the indication comprises an address including a first set of bits and a second set of bits, wherein the first set of bits identifies the corresponding relay node and wherein the second set of bits identifies a corresponding user agent within a donor cell of the corresponding relay node.

8. The method of claim 6, further comprising:

transmitting a signal to a particular user agent to instruct the particular user agent to disable autonomous combining.

9. The method of claim 8, further comprising:

transmitting another signal to the particular user agent to instruct the particular user agent to re-enable autonomous combining to improve data reception from the access node.

10. The method of claim 6, further comprising:

adding a field to a physical downlink control channel (PDCCH) signal, wherein the field includes an index to identify a medium access control packet data unit (MAC PDU) at the user agent.

11. A non-transitory computer readable medium storing instructions executable by a processor to implement a method in an access node, the method comprising:

transmitting an indication corresponding to one of a plurality of relay nodes to a user agent;

transmitting a first transmission to the user agent, the first transmission containing a first data; and

transmitting an instruction to the user agent to instruct the user agent to enable combining, wherein the user agents separately demodulates portions of the first transmission and a second transmission containing a second data from the one of a plurality of relay nodes and combines portions of the first and second data.

12. The non-transitory computer readable medium of claim 11, wherein the indication comprises an address including a first set of bits and a second set of bits, wherein the first set of bits identifies the corresponding relay node and wherein the second set of bits identifies a corresponding user agent within a donor cell of the corresponding relay node.

13. The computer readable medium of claim 11, the method further comprising:

transmitting a signal to a particular user agent to instruct the particular user agent to disable autonomous combining.

14. The non-transitory computer readable medium of claim 13, the method further comprising:

transmitting another signal to the particular user agent to instruct the particular user agent to re-enable autonomous combining to improve data reception from the access node.

15. The non-transitory computer readable medium of claim 11, the method further comprising:

adding a field to a physical downlink control channel (PDCCH) signal, wherein the field includes an index to identify a medium access control packet data unit (MAC PDU) at the user agent.