Techniques for assisting radio access technology (RAT) communications using another RAT

• US 9,814,088 B2
• Filed: 09/18/2015
• Issued: 11/07/2017
• Est. Priority Date: 04/02/2015
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Gubeskys, Arthur, Touboul, Assaf, Barak, Oz, Cohen, Raphael
• Primary Examiner(s): Wu, Jianye
• Application Number:
  US14/859,133
• Publication Number:
  US 20160295631A1
• Time in Patent Office: 781 Days
• CPC Class Codes: H04B 7/0456 Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
• CPC Class Codes: H04W 56/0005 synchronizing of arrival of multiple uplinks
• CPC Class Codes: H04W 76/15 Setup of multiple wireless link connections
• CPC Class Codes: H04W 76/16 Involving different core network technologies, e.g. a packet-switched [PS] bearer in combination with a circuit-switched [CS] bearer

Abstract

Systems and methods for communicating in a wireless network using a first radio access technology (RAT) and an assisting RAT are disclosed. A first connection can be established with a user equipment (UE) using the first RAT, and a second connection can be established with the UE using an assisting RAT. A timing of the first connection can be synchronized based at least in part on a timeline of the assisting RAT, and a neighboring access point can be collaborated with in communicating with a UE over at least the first connection.

Claims

1. A method for communicating in a wireless network using a first radio access technology (RAT) and an assisting RAT, comprising:

establishing, via a first RAT radio of an access point, a first connection with a user equipment (UE) using the first RAT;

establishing, via an assisting RAT radio of the access point, a second connection with the UE using the assisting RAT;

synchronizing a timing of the first connection based at least in part on a timeline of the assisting RAT; and

collaborating, by the access point, with a neighboring access point in communicating, via the first RAT radio of the access point, with a UE over at least the first connection.

2. The method of claim 1, wherein collaborating with the neighboring access point comprises:

determining a beamforming matrix related to communications over a connection at the neighboring access point, wherein the connection utilizes the first RAT synchronized based on the timeline of the assisting RAT; and

performing collaborative beamforming with the neighboring access point via the first RAT radio of the access point in communicating with the UE over the first connection based at least in part on the beamforming matrix.

3. The method of claim 2, wherein determining the beamforming matrix comprises determining the beamforming matrix based at least in part on a first V-matrix received in a first signal from the UE and a second V-matrix received from the neighboring access point, wherein the second V-matrix is received by the neighboring access point in a second signal from the UE.

4. The method of claim 2, wherein determining the beamforming matrix comprises receiving, via the first RAT radio and from the neighboring access point, the beamforming matrix.

5. The method of claim 1, wherein collaborating with the neighboring access point comprises transmitting, via the first RAT radio and to the neighboring access point, a V-matrix from the UE.

6. The method of claim 1, further comprising determining first in-phase (I)/quadrature phase (Q) samples of a first signal received from the UE, wherein collaborating with the neighboring access point comprises:

receiving, via the first RAT radio and from the neighboring access point, second I/Q samples of a second signal of the UE; and

detecting a packet from the UE based at least in part on the first I/Q samples and the second I/Q samples.

7. The method of claim 1, wherein the first RAT is a wireless local area network (WLAN) RAT and the assisting RAT is a cellular technology RAT.

8. An apparatus for communicating in a wireless network using a first radio access technology (RAT) and an assisting RAT, comprising:

a first RAT radio configured to establish a first connection with a user equipment (UE) using the first RAT;

an assisting RAT radio configured to establish a second connection with the UE using the assisting RAT;

a memory component; and

at least one processor coupled to the memory component, the at least one processor and the memory component configured to;

synchronize a timing of the first connection based at least in part on a timeline of the assisting RAT; and

collaborate with a neighboring access point in communicating, via the first RAT radio, with a UE over at least the first connection.

9. The apparatus of claim 8, wherein the at least one processor and the memory component are further configured to:

determine a beamforming matrix related to communications over a connection at the neighboring access point, wherein the connection utilizes the first RAT synchronized based on the timeline of the assisting RAT; and

perform collaborative beamforming with the neighboring access point via the first RAT radio in communicating with the UE over the first connection based at least in part on the beamforming matrix.

10. The apparatus of claim 9, wherein the at least one processor and the memory component are configured to determine the beamforming matrix based at least in part on a first V-matrix received in a first signal from the UE and a second V-matrix received from the neighboring access point, wherein the second V-matrix is received by the neighboring access point in a second signal from the UE.

11. The apparatus of claim 9, wherein the at least one processor and the memory component are configured to determine the beamforming matrix at least in part by receiving, via the first RAT radio and from the neighboring access point, the beamforming matrix.

12. The apparatus of claim 8, wherein the at least one processor and the memory component are configured to transmit, via the first RAT radio and to the neighboring access point, a V-matrix from the UE.

13. The apparatus of claim 8, wherein the at least one processor and the memory component are further configured to determine first in-phase (I)/quadrature phase (Q) samples of a first signal received from the UE, and wherein the at least one processor and the memory component are configured to collaborate with the neighboring access point at least in part by:

receiving, via the first RAT radio and from the neighboring access point, second I/Q samples of a second signal of the UE; and

detecting a packet from the UE based at least in part on the first I/Q samples and the second I/Q samples.

14. The apparatus of claim 8, wherein the first RAT is a wireless local area network (WLAN) RAT and the assisting RAT is a cellular technology RAT.

15. A non-transitory computer-readable storage medium comprising computer-executable code for communicating in a wireless network using a first radio access technology (RAT) and an assisting RAT, the code comprising:

code for establishing, via a first RAT radio of an access point, a first connection with a user equipment (UE) using the first RAT;

code for establishing, via an assisting RAT radio of the access point, a second connection with the UE using the assisting RAT;

code for synchronizing a timing of the first connection based at least in part on a timeline of the assisting RAT; and

code for collaborating, by the access point, with a neighboring access point in communicating, via the first RAT radio of the access point, with a UE over at least the first connection.

16. The non-transitory computer-readable storage medium of claim 15, wherein the code for collaborating with the neighboring access point comprises:

code for determining a beamforming matrix related to communications over a connection at the neighboring access point, wherein the connection utilizes the first RAT synchronized based on the timeline of the assisting RAT; and

code for performing collaborative beamforming with the neighboring access point via the first RAT radio of the access point in communicating with the UE over the first connection based at least in part on the beamforming matrix.

17. The non-transitory computer-readable storage medium of claim 16, wherein the code for determining the beamforming matrix determines the beamforming matrix based at least in part on a first V-matrix received in a first signal from the UE and a second V-matrix received from the neighboring access point, wherein the second V-matrix is received by the neighboring access point in a second signal from the UE.

18. The non-transitory computer-readable storage medium of claim 16, wherein the code for determining the beamforming matrix comprises receives, via the first RAT radio and from the neighboring access point, the beamforming matrix.

19. The non-transitory computer-readable storage medium of claim 15, wherein the code for collaborating with the neighboring access point transmits, via the first RAT radio and to the neighboring access point, a V-matrix from the UE.

20. The non-transitory computer-readable storage medium of claim 15, wherein the code further comprises code for determining first in-phase (I)/quadrature phase (Q) samples of a first signal received from the UE, and wherein the code for collaborating with the neighboring access point comprises:

code for receiving, via the first RAT radio and from the neighboring access point, second I/Q samples of a second signal of the UE; and

code for detecting a packet from the UE based at least in part on the first I/Q samples and the second I/Q samples.