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US 2010/0074242 A1Published application
Simple block space time transmit diversity using multiple spreading codes
AssigneeInterDigital Technology Corporation
InventorsYounglok Kim, Ariela Zeira
Life of this patent
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Abstract
A base station and user equipment (UE) for use in a CDMA communication system are disclosed. The base station includes a first and second antenna for transmitting first and second communication bursts. The first channelization device spreads data using a first channelization code and the second channelization device spreads the data using a second channelization code. The UE has a data detection device for receiving a signal including the first and second communication bursts.
Claims7
A user equipment comprising:
- a data detection device having an input configured to receive a signal, the received signal having a first communication burst and a second communication burst, the first and second communication bursts being transmitted from a same base station in a same time slot over different antennas and the first and second communication bursts having the same data, each of the first and second communication bursts having an inserted midamble training sequence, the data detection device configured to process the received signal with a first channelization code associated with a first transmission antenna to produce first data and the data detection device configured to process the received signal with a second channelization associated with a second transmission antenna to produce second data, wherein the first and second data are the same data.
A base station, comprising:
- a first channelization device to receive data and spread the data with a first channelization code to produce a first spread data field;
- a second channelization device to receive the same data as the first channelization device and spread the received data with a second channelization code that is different from the first channelization code to produce a second spread data field;
- a first training sequence device in communication with the first channelization device, the first training sequence device to combine the first spread data field with a first midamble to produce a first communication burst;
- a second training sequence device in communication with the second channelization device, the second training sequence device to combine the second spread data field with a second midamble to produce a second communication burst;
- a first diversity antenna to transmit the first communication burst;
- and
- a second diversity antenna to transmit the second communication burst.
4 more elements
Dependencies are inferred from the claim text.