IP Library Granted Patent US 8,467,485
Granted Patent B2
US 8,467,485 · App. 13/093,574 · Granted Jun 18, 2013

Smart antenna solution for mobile handset

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Quick Facts
Patent No.
US 8,467,485
App. No.
13/093,574
Granted
Jun 18, 2013
Kind
B2
Abstract

A mobile terminal with smart antennas, comprises a plurality of groups of radio frequency signal processing modules ( 300 ), for transforming received multi-channel radio frequency signals to multi-channel baseband signals; a smart antenna processing module ( 306 ), for smart antenna baseband processing said multi-channel baseband signals output from said plurality of groups of radio frequency signal processing module so as to combine said multi-channel baseband signals into single-channel baseband signals, according to control information received one-off as said smart antenna processing module is enabled; and a baseband processing module ( 303 - 305 ), for providing said control information to said smart antenna processing module according to data from said smart antenna processing module, and baseband processing said single-channel baseband signals outputted from said smart antenna processing module.

Claims (38)

1. A smart antenna module for processing multi-channel signals received by smart antennas to generate single channel signals for input to a baseband processing module, the smart antenna module comprising:

a plurality of buffers, each configured to cache respective inputted multi-channel signals;

a plurality of weight adjusting circuits, each associated with a respective one of the plurality of buffers and configured to weigh data outputted from the respective buffer according to a respectively received weight;

a combiner configured to combine the weighted data outputted from each of the plurality of weight adjusting modules so as to combine the inputted multi-channel signals into single-channel signals; and

a controller configured to:

switch the smart antenna module between an initialization mode and a processing mode responsive to a control signal from the baseband processing module;

control the smart antenna module to pass-through the multi-channel signals to the baseband processing module while in the initialization mode;

receive control information from the baseband processing module while in said initialization mode; and

compute combining weights for said weight adjustinq modules using said control information while in said processing mode.

2. The smart antenna module of claim 1 , wherein the buffers are ring-FIFOs.

3. The smart antenna module of claim 2 , wherein a size of each ring-FIFO is one time slot.

4. A mobile terminal with smart antennas, the mobile terminal comprising:

a smart antenna processing module configured to smart antenna baseband process multi-channel baseband signals so as to combine the multi-channel baseband signals into single-channel baseband signals, according to control information received one-off as the smart antenna processing module is enabled; and

a baseband processing circuit configured to provide the control information to the smart antenna processing module, and baseband process the single-channel baseband signals outputted from the smart antenna processing module;

wherein the control information at least includes: a signal used to enable the smart antenna processing module, downlink pilot time slot data and a Midamble, and

wherein the smart antenna processing module includes:

a plurality of buffers configured to cache received data information; a plurality of weight adjusting circuits, each configured to weigh data outputted from each of the plurality of buffers according to a respectively received weight;

a combiner configured to combine the weighted data outputted from each of the plurality of weight adjusting circuits and outputting combined data; and

a controller configured to synchronize data streams inputted into the smart antenna processing module according to the control information, and provide the weight to each of the plurality of weight adjusting circuit.

5. The mobile terminal of claim 4 , wherein the buffers are ring-FIFOs.

6. The mobile terminal of claim 5 , wherein a size of each ring-FIFO is one time slot.

7. The mobile terminal of claim 4 , wherein the controller includes a synchronization controller configured to synchronize sub-frames of the input multi-channel signals by matching the input multi-channel signals with the down-link pilot time slot data of the control information, and synchronize time slots of the input multi-channel signals by matching the input multi-channel signals with the Midamble of the control information; and

the controller includes a combining controller configured to calculate the weights provided to the weight adjusting circuit according to one or more Midambles of the input multi-channel signals and the Midamble of the control information.

8. A method for a mobile terminal with smart antennas comprising:

generating control information according to one channel baseband signals within multi-channel baseband signals;

enabling smart antenna baseband processing, and combining the multi-channel baseband signals into single-channel baseband signals according to the control information received one-off; and

baseband processing the single-channel baseband signals,

wherein enabling smart antenna baseband processing, and combining the multi-channel baseband signals into single-channel baseband signals according to the control information received one-off further includes:

caching the multi-channel baseband signals before enabling the smart antenna baseband processing;

synchronizing the multi-channel baseband signals with synchronization information included in the control information according to the control information, after enabling the smart antenna baseband processing;

calculating weights according to the multi-channel baseband signals and the control information;

respectively weighting the cached data according to the calculated weights; and

combining the weighted data to carry out the baseband processing.

9. The method of claim 8 , wherein generating control information according to one channel baseband signals within multi-channel baseband signals is completed in a baseband processing module.

10. The method of claim 8 , wherein synchronizing the multi-channel baseband signals with synchronization information included in the control information according to the control information, after enabling the smart antenna baseband processing is completed within one channel of a smart antenna processing module.

11. The method of claim 8 , wherein the control information at least includes: a signal used to enable the smart antenna baseband processing, down-link pilot time slot data and a Midamble.

12. The method of claim 8 , wherein the control information at least includes: a signal used to enable the smart antenna baseband processing, a weight-algorithm selecting signal, down-link pilot time slot data and a Midamble.

13. The device of claim 1 wherein the controller is further configured to synchronize the device with said multi-channels signals using said control information while in said initialization mode.

Assignments (2)
STATUS CHANGE-ENTITY IN LIQUIDATION Recorded Feb 2, 2016
From: ST-ERICSSON SA
To: ST-ERICSSON SA, EN LIQUIDATION
Reel/Frame 037739/0493 →
CHANGE OF NAME Recorded Aug 24, 2012
From: ST WIRELESS SA
To: ST-ERICSSON SA
Reel/Frame 028845/0320 →