US 2009/0023447 A1 · Data processing in intra-site handover

Abstract

The invention involves data processing during intra-site handover procedures. At least two directional antennas of a base station receive user data carrying signals originating from a mobile units positioned in an intra-site handover area defined by the overlapping radio coverage of the antennas. The directional antennas performs an initial data signal detection of the received data signals resulting in detected user data, which typically results in a loss of radio performance of the antenna. The detected user data from the directional antennas is then jointly processed to generate processed user data. The performance loss is compensated by providing differential antenna gain of the directional antennas within the handover area. As a result, a similar radio coverage in this area as prior art solutions is obtained but with a less complex antenna-related design.

Claims39

Dependent claims

1-38. (canceled)

A method of processing user data in a communications system comprising a base station having multiple directional transceiver units and a mobile unit connected to a first and a second directional transceiver unit of said base station and positioned in a handover area associated with said first and second directional transceiver unit, said method comprising the steps of:

said first directional transceiver unit detecting a user data carrying signal originating from said mobile unit and generating first detected user data based on said user data carrying signal;
said second directional transceiver unit detecting said user data signal originating from said mobile unit and generating second detected user data based on said user data carrying signal;
jointly processing said first detected user data and said second detected user data to provide processed user data;
and
increasing the antenna gain of said first directional transceiver unit in said handover area for incrementing the radio performance of said first directional transceiver unit in said handover area.

2 more elements

A user data processing system in a communications system comprising a base station having multiple directional transceiver units and a mobile unit connected to a first and a second directional transceiver unit of said base station and positioned in a handover area associated with said first and second directional transceiver unit, said first and second directional transceiver unit comprises means for receiving a user data carrying signal originating from said mobile unit and means for generating first and second detected data based on said user data carrying signal, said system comprising:

means for jointly processing said first detected user data and said second detected user data to provide processed user data;
and
means for increasing the antenna gain of said first directional transceiver unit in said handover area for incrementing the radio performance of said first directional transceiver unit in said handover area.

A base station having multiple transceiver units in a communications system, said base station comprising:

a first directional transceiver unit connected to a mobile unit and comprises:
means for receiving a user data carrying signal originating from said mobile unit;
and
means for generating first detected from said received user data carrying signal;
a second transceiver unit connected to said mobile unit and comprises:
means for receiving said user data carrying signal originating from said mobile unit;
and
means for generating second detected from said received user data carrying signal;
means for jointly processing said first detected user data and said second detected user data to provide processed user data;
and
means for increasing the antenna gain of said first directional transceiver unit in said handover area for incrementing the radio performance of said first directional transceiver unit in said handover area.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application

11/628,939Filed 30 Jun 2004

Published

22 Jan 2009

Term ends

Not estimatedThe source records don’t support an estimate.

Classification9 codes

H04W 52/40
TPC being performed in particular situations: during macro-diversity or soft handoff
H04W 36/00837
Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists: determination of triggering parameters for…
H04W 36/0085
Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists: hand-off measurements
H04W 36/0094
Hand-off measurements: definition of hand-off measurement parameters

Data processing in intra-site handover

Life of this patent

Data processing in intra-site handover

Life of this patent

Abstract

Claims39