WIRELESS COMMUNICATION SYSTEM USING MULTIPLE-SERVING NODES

• US 20150245338A1
• Filed: 05/08/2015
• Published: 08/27/2015
• Est. Priority Date: 04/13/2010
• Status: Active Grant

• Current Assignee: Malikie Innovations Limited (Key Patent Innovations Limited)
• Original Assignee: Blackberry Limited
• Inventors: Yu, Yi, Cai, Zhijun, Womack, James Earl, Hu, Rose Qingyang
• Granted Patent: US 10,321,436 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04B 7/024 Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
• CPC Class Codes: H04B 7/0621 Feedback content
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 84/047 using dedicated repeater stations
• CPC Class Codes: H04W 88/04 adapted for relaying to or from another terminal or user

Abstract

Methods, devices and systems for a wireless communication system using multiple-serving nodes are provided. In one embodiment, a method of wireless communication comprises sending from a wireless device an uplink control signal to a first node via a second node using a second communication link; receiving by said wireless device a downlink control signal from said first node using a first communication link; sending from said wireless device another uplink control signal to said second node using said second communication link; and receiving by said wireless device another downlink control signal from said second node via said first node using said first communication link.

Claims

1. A method of communication in a Long Term Evolution (LTE) wireless communication system, the method comprising:

receiving, by a wireless device, a first physical downlink control channel (PDCCH) and a first physical hybrid automatic repeat request indicator channel (PHICH) from a first node while also receiving a second PDCCH and a second PHICH from a second node; and

transmitting, by the wireless device, a first physical uplink control channel (PUCCH) to the first node while also transmitting a second PUCCH to the second node.

2. The method of claim 1, further comprising:

receiving, by the wireless device, data in a physical downlink shared channel (PDSCH) transmitted from the first node; and

transmitting, by the wireless device, the data in a physical uplink shared channel (PUSCH) transmitted to the second node.

3. The method of claim 2, wherein the first PDCCH, the first PHICH, and the PDSCH are multiplexed to be transmitted from the first node.

4. The method of claim 2, wherein the second PUCCH and the PUSCH are multiplexed to be transmitted to the second node.

5. The method of claim 1, wherein the first PUCCH and the second PUCCH comprise at least one of:

a sounding reference signal (SRS);

an acknowledgment or no acknowledgment (ACK/NACK) signal;

a channel quality indicator (CQI) signal;

a precoding matrix indictor (PMI) signal;

a rank indicator (RI) signal;

or

a scheduling request indicator (SRI) signal.

6. The method of claim 1, wherein the first PDCCH and the second PDCCH comprise at least one of:

a downlink grant signal;

an uplink grant signal;

a timing adjustment signal;

or

a transmission power control (TPC) signal.

7. The method of claim 1, wherein the first node and the second node are time synchronized.

8. The method of claim 2, further comprising selecting the first node to transmit the data using at least one of received signal strength, bit error rate and word error rate.

9. The method of claim 2, further comprising selecting the second node to receive the data using at least one of received signal strength, bit error rate and word error rate.

10. A wireless device in a Long Term Evolution (LTE) wireless communication system, the wireless device comprising:

a processor coupled to a memory containing processor-executable instructions, wherein the processor is configured to;

receive a first physical downlink control channel (PDCCH) and a first physical hybrid automatic repeat request indicator channel (PHICH) from a first node simultaneously with receiving a second PDCCH and a second PHICH from a second node; and

transmit a first physical uplink control channel (PUCCH) to the first node simultaneously with transmitting a second PUCCH to the second node.

11. The wireless device of claim 10, wherein the wireless device receives data from the first node in a physical downlink shared channel (PDSCH) and transmits the data to the second node in a physical uplink shared channel (PUSCH).

12. The wireless device of claim 11, wherein the first PDCCH, the first PHICH, and the PDSCH are multiplexed to be transmitted from the first node.

13. The wireless device of claim 11, wherein the second PUCCH and the PUSCH are multiplexed to be transmitted to the second node.

14. The wireless device of claim 10, wherein the first PUCCH and the second PUCCH comprise at least one of:

a sounding reference signal (SRS);

an acknowledgment or no acknowledgment (ACK/NACK) signal;

a channel quality indicator (CQI) signal;

a precoding matrix indictor (PMI) signal;

a rank indicator (RI) signal;

or

a scheduling request indicator (SRI) signal.

15. The wireless device of claim 10, wherein the first PDCCH and the second PDCCH comprise at least one of:

a downlink grant signal;

an uplink grant signal;

a timing adjustment signal;

or

a transmission power control (TPC) signal.

16. A system of communication in a Long Term Evolution (LTE) wireless communication system, the system of communication comprising:

a wireless device;

a first node communicatively linked to the wireless device; and

a second node communicatively linked to the wireless device;

wherein the first node transmits a first physical downlink control channel (PDCCH) and a first physical hybrid automatic repeat request indicator channel (PHICH) to the wireless device simultaneously with the second node transmitting a second PDCCH and a second PHICH to the wireless device; and

wherein the wireless device transmits a first physical uplink control channel (PUCCH) to the first node simultaneously with transmitting a second PUCCH to the second node.

17. The system of communication of claim 16, wherein the wireless device receives data from the first node in a physical downlink shared channel (PDSCH) and transmits the data to the second node in a physical uplink shared channel (PUSCH).

18. The system of communication of claim 17, wherein the first PDCCH, the first PHICH, and the PDSCH are multiplexed to be transmitted from the first node.

19. The system of communication of claim 17, wherein the second PUCCH and the PUSCH are multiplexed to be transmitted to the second node.

20. The system of communication of claim 16, wherein the first PUCCH and the second PUCCH comprise at least one of:

a sounding reference signal (SRS);

an acknowledgment or no acknowledgment (ACK/NACK) signal;

a channel quality indicator (CQI) signal;

a precoding matrix indictor (PMI) signal;

a rank indicator (RI) signal;

or

a scheduling request indicator (SRI) signal.

21. The system of communication of claim 16, wherein the first PDCCH and the second PDCCH comprise at least one of:

a downlink grant signal;

an uplink grant signal;

a timing adjustment signal;

or

a transmission power control (TPC) signal.

22. The system of communication of claim 16, wherein the first node and the second node are time synchronized.

23. The system of communication of claim 17, wherein the first node is selected to transmit the data using at least one of received signal strength, bit error rate and word error rate.

24. The system of communication of claim 17, wherein the second node is selected to receive the data using at least one of received signal strength, bit error rate and word error rate.