Capacity increasing devices and methods for wireless communication

• US 9,313,683 B2
• Filed: 12/21/2012
• Issued: 04/12/2016
• Est. Priority Date: 09/12/2007
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Yu, Zhi-Zhong, Dhanda, Mungal Singh, Walke, Simon, Agarwal, Mukund
• Primary Examiner(s): Pezzlo, John
• Application Number:
  US13/725,842
• Publication Number:
  US 20130107749A1
• Time in Patent Office: 1,208 Days
• Field of Search: 370/252, 370/329, 370/442
• US Class Current: 1/1
• CPC Class Codes: H04B 17/318 Received signal strength
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0023 Time-frequency-space
• CPC Class Codes: H04L 5/0037 Inter-user or inter-terminal allocation
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04L 5/005 of common pilots, i.e. pilots destined for multiple users or terminals
• CPC Class Codes: H04L 5/0091 Signaling for the administration of the divided path
• CPC Class Codes: H04W 28/0236 radio quality, e.g. interference, losses or delay
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 72/542 using measured or perceived quality

Abstract

The present patent application improves DARP by allowing multiple users on one time slot (MUROS). It comprises means and instructions for sharing signals on a single channel, comprising setting up a new connection, allocating a new time slot if there is an unused time slot on a channel frequency, selecting an used time slot for the new connection to share with an existing connection if there is not an unused time slot on the channel frequency, and selecting a different training sequence code for the new connection if the used time slot on the channel frequency has been selected for the new connection to share with an existing connection.

Claims

1. A method to identify if a remote station is MUROS capable, comprising:

establishing an interference rejection ability of the remote station in a given environment by sending a discovery burst that includes a speech signal with a known interference pattern;

allocating the remote station to an available shared slot; and

permitting a pairing with another remote station.

2. The method according to claim 1, wherein said step of establishing an interference rejection ability further comprises:

measuring a bit error probability.

3. The method according to claim 2, wherein said interference rejection ability is acceptable if said bit error probability is at least 25.

4. The method according to claim 1, wherein said step of establishing an interference rejection ability further comprises:

measuring a co-variance of a bit error probability.

5. The method according to claim 1, wherein said step of establishing an interference rejection ability further comprises:

measuring a RxQual.

6. The method according to claim 5, wherein said interference rejection ability is acceptable if said RxQual is 2 or lower.

7. The method according to claim 1, wherein said step of establishing an interference rejection ability further comprises:

measuring a RxLev.

8. The method according to claim 7, wherein said interference rejection ability is acceptable if said RxLev is at least 100 dBm.

9. An apparatus for identifying if a remote station is MUROS capable, comprising:

means for establishing an interference rejection ability of the remote station in a given environment by sending a discovery burst that includes a speech signal with a known interference pattern;

means for allocating the remote station to an available shared slot; and

means for permitting a pairing with another remote station.

10. The apparatus according to claim 9, wherein said means for establishing an interference rejection ability comprises:

means for measuring a bit error probability.

11. The apparatus according to claim 10, wherein said interference rejection ability is acceptable if said bit error probability is at least 25.

12. The apparatus according to claim 9, wherein said means for establishing an interference rejection ability comprises:

means for measuring a co-variance of a bit error probability.

13. The apparatus according to claim 9, wherein said means for establishing an interference rejection ability comprises:

means for measuring a RxQual.

14. The apparatus according to claim 13, wherein said interference rejection ability is acceptable if said RxQual is 2 or lower.

15. The apparatus according to claim 9, wherein said means for establishing an interference rejection ability comprises:

means for measuring a RxLev.

16. The apparatus according to claim 15, wherein said interference rejection ability is acceptable if said RxLev is at least 100 dBm.

17. A base station, comprising:

a controller processor;

an antenna;

a duplexer switch operably connected to said base station antenna;

a receiver front end operably connected to said duplexer switch;

a receiver demodulator operably connected to said receiver front end;

a channel decoder and de-interleaver operably connected to said receiver demodulator and said controller processor;

a base station controller interface operably connected to said controller processor;

a coder and interleaver operably connected to said controller processor;

a transmitter modulator operably connected to said coder and interleaver;

a transmitter front end module operably connected to said transmitter modulator and operably connected to said duplexer switch;

a data bus operably connected between said controller processor and said channel decoder and de-interleaver, said receiver demodulator, said receiver front end, said transmitter modulator and said transmitter front end; and

software stored in said memory, wherein said software comprises instructions that, when executed by the controller processor, cause the controller processor to identify if a remote station is MUROS capable, the instructions comprising instructions to;

establish an interference rejection ability of the remote station in a given environment;

allocate the remote station to an available shared slot; and

permit a pairing with another remote station.

18. The base station according to claim 17, wherein said instruction to establish an interference rejection ability comprises instructions to:

send a discovery burst; and

measure a bit error probability.

19. The base station according to claim 18, wherein said interference rejection ability is acceptable if said bit error probability is at least 25.

20. The base station according to claim 17, wherein said instruction to establish an interference rejection ability comprises instructions to:

send a discovery burst; and

measure a co-variance of a bit error probability.

21. The base station according to claim 17, wherein said instruction to establish an interference rejection ability comprises instructions to:

send a discovery burst; and

measure a RxQual.

22. The base station according to claim 21, wherein said interference rejection ability is acceptable if said RxQual is 2 or lower.

23. The base station according to claim 17, wherein said instruction to establish an interference rejection ability comprises instructions to:

send a discovery burst; and

measure a RxLev.

24. The base station according to claim 23, wherein said interference rejection ability is acceptable if said RxLev is at least 100 dBm.