Interference management for a distributed spatial network

Patent metadata

Field	Value
Publication number	US-9722712-B2
Application number	US-201214116341-A
Country	US
Kind code	B2
Filing date	May 9, 2012
Priority date	May 9, 2011
Publication date	Aug 1, 2017
Grant date	Aug 1, 2017

Abstract

A communication network comprising of at least one remote base station; and a plurality of antenna ports connected to the at least one remote base station; wherein the remote base station controls the plurality of antenna ports. The remote base station is configured for defining mutually exclusive entry and exit points for the antenna ports in at least one of time; or frequency. Also, disclosed herein is a communication network comprising of at least one network controller and at least one base station, wherein the network controller is configured for assigning entry and exit points for each base station.

First claim

We claim:

1. A communication network comprising of:
at least one network controller;
at least one remote base station connected to said at least one network controller, wherein said at least one network controller controls functioning of said at least one remote base station; and
a plurality of antenna ports connected to said at least one remote base station, wherein each antenna port comprises at least one antenna; wherein said remote base station controls functioning of said plurality of antenna ports, wherein said plurality of antenna ports are synchronized to said remote base station in at least one of time, and frequency; and
wherein said at least one network controller is configured for assigning entry and exit points for each remote base station.

2. The communication network, as claimed in claim 1 , wherein said antenna ports is at least one of co-located with said remote base station, and remotely located from said remote base station.

3. The communication network, as claimed in claim 1 , wherein at least two antenna ports from said plurality of antenna ports are at least one of co-located with said remote base station, and remotely located from said remote base station.

4. The communication network, as claimed in claim 1 , wherein said antenna ports are connected to said remote BS using one of
a wired link; and
a wireless link.

5. The communication network, as claimed in claim 1 , wherein a group of antenna ports selected from said plurality of antenna ports are assigned a base station ID number, wherein said group of antenna ports comprises of at least one antenna port.

6. The communication network, as claimed in claim 5 , wherein each of said plurality of antenna ports in each of said group of antenna ports is assigned a unique identification number.

7. The communication network, as claimed in claim 6 , wherein said unique identification number is communicated to a User Equipment (UE) using a control message.

8. The communication network, as claimed in claim 5 , wherein more than one antenna port present in said group of antenna ports is configured for transmitting identical copies of synchronization and control messages at same time.

9. The communication network, as claimed in claim 5 , wherein said remote base station is configured for deciding antenna port to be used for communication based on at least one plurality of factors, said plurality of factors comprising
feedback from destination UE;
traffic conditions; and
location of said UE.

10. The communication network, as claimed in claim 5 , wherein said remote base station is configured for defining entry and exit points for each selected antenna port in at least one of time, and frequency.

11. The communication network, as claimed in claim 10 , wherein said remote base station is configured for defining mutually exclusive entry and exit points for said antenna ports in at least one of time, and frequency.

12. The communication network, as claimed in claim 10 , wherein said remote base station is configured for defining mutually exclusive entry and exit points for said group of antenna ports in at least one of time, and frequency.

13. The communication network, as claimed in claim 10 , wherein at least one antenna port from said group of antenna ports is configured for communicating said entry and exit points to at least one destination UE.

14. The communication network, as claimed in claim 10 , at least one antenna port from said group of antenna ports is configured for communicating said entry and exit points to at least one destination UE using a control channel.

15. The communication network, as claimed in claim 5 , wherein communication through said plurality of antenna ports comprises of at least one of data, and reference signals.

16. The communication network, as claimed in claim 15 , wherein said reference signal comprises of at least one of a channel quality reference signal, and a demodulation reference signal.

17. The communication network, as claimed in claim 16 , wherein said channel quality reference signal is transmitted between entry and exit points at predefined time/frequency resource elements.

18. The communication network, as claimed in claim 17 , wherein said channel quality reference signal is used for channel quality measurements by a UE.

19. The communication network, as claimed in claim 18 , wherein channel quality is measured as post-processing Signal to Interference Noise Ratio of receiver used by said UE.

20. The communication network, as claimed in claim 16 , wherein said demodulation reference signal is used for demodulation.

21. The communication network, as claimed in claim 16 , wherein said demodulation reference signal is used for channel quality measurements.

22. The communication network, as claimed in claim 5 , wherein at least one antenna port from said group of antenna ports with the base station ID number requests a UE to provide channel quality measurements for a sub-group of antenna ports.

23. The communication network, as claimed in claim 5 , wherein at least one antenna port from said group of antenna ports with the base station ID number transmits a control message to a UE.

24. The communication network, as claimed in claim 5 , wherein said group of antenna ports with the base station ID number requests a UE to report channel quality measurements for duration between entry and exit points.

25. The communication network, as claimed in claim 1 , wherein a UE is configured for reporting channel quality measurements for a base station ID number.

26. The communication network, as claimed in claim 1 , wherein a UE is configured for reporting channel quality measurements for at least one antenna port from a group of antenna ports for a specific resource block.

27. The communication network, as claimed in claim 1 , wherein a UE is configured for:
determining at least one antenna port, wherein said at least one antenna port has highest channel quality compared to other antenna ports;
associating with said at least one antenna port; and
performing at least one of
reporting channel quality of a set of best resource blocks corresponding to said at least one antenna port; and
reporting wide band channel quality corresponding to said at least one antenna port.

28. The communication network, as claimed in claim 1 , wherein a UE is configured for:
measuring channel quality corresponding to groups of antenna ports, wherein said groups have a distinct BS ID;
associating with a group of antenna ports based on the measured channel quality BS ID from said group of antenna ports; and
reporting channel quality corresponding to said associated group of antenna ports.

29. The communication network, as claimed in claim 1 , wherein a UE is configured for:
associating with a plurality of groups of antenna ports, wherein said plurality of groups have a distinct BS ID;
reporting channel quality of a first antenna port from associated plurality of group of antenna ports; and
reporting channel quality of a second antenna port from said associated group of antenna ports.

30. The communication network, as claimed in claim 1 , wherein a UE is configured for:
associating with a plurality of antenna ports;
reporting channel quality of a first antenna port from said associated antenna ports; and
reporting channel

Assignees

• Kuchi Kiran Kumar
• Ramamurthi Bhaskar
• Klutto Milleth Jeniston Deviraj
• Yerrapareddy Sivakishore Reddy
• Kaimalettu Sunil
• Suruvu Naga Sekhar
• Baskaran Dhivagar
• Krishnamurthi Giridhar
• Suryasarman Padmanabhan Madampu
• Centre Of Excellence In Wireless Tech

Inventors

• Kuchi Kiran Kumar
• Ramamurthi Bhaskar
• Klutto Milleth Jeniston Deviraj
• Yerrapareddy Sivakishore Reddy
• Kaimalettu Sunil
• Suruvu Naga Sekhar
• Baskaran Dhivagar
• Krishnamurthi Giridhar
• Suryasarman Padmanabhan Madampu

Classifications

• H04W88/085 Primary

  Access point devices with remote components · CPC title

• H04W72/542

  using measured or perceived quality · CPC title

• H04B7/0619

  using feedback from receiving side (feedback signaling for adaptive modulation/coding H04L1/0001) · CPC title

• H04W72/085

  Electricity · mapped topic

• H04B15/00 Primary

  Suppression or limitation of noise or interference (by means associated with receiver H04B1/10) · CPC title