USER EQUIPMENT AND METHOD FOR TRANSMITTING A DATA STREAM TO AN EVOLVED NODE B

摘要

In a wireless network, a user equipment (UE) can communicate with an Evolved Node B (eNodeB). During at least some times, the UE transmits a data stream to the eNodeB, over one of several available antenna states on the UE. The antenna states can include one or more tuning states for each antenna port on the UE. At predetermined times, which can be periodic, the UE ceases transmission of the data stream, transmits a test signal sequentially over each of its antenna states, receives a signal back from the eNodeB indicating which of the antenna states provides the strongest signal, and switches to the indicated antenna state. After switching, the UE can resume transmission of the data stream over the indicated antenna state. In some examples, the UE can repeat the antenna tuning/retuning process periodically.

主权项

1. A user equipment (UE) configured to transmit a data stream to an Evolved Node B (eNodeB), the UE comprising:
at least one antenna port, each antenna port being connectable to an antenna capable of transmitting data from the data stream to the eNodeB at one of a plurality of selectable tuning states, the combination of antenna ports and tuning states forming a plurality of selectable antenna states for the UE; and circuitry configured to:
transmit to the eNodeB a first portion of the data stream over a first antenna state of the plurality;sequentially transmit to the eNodeB a test signal over each antenna state in the plurality;receive from the eNodeB an indication that the test signal transmitted on a second antenna state of the plurality is stronger at the eNodeB than the test signal transmitted on the first antenna state; andtransmit to the eNodeB a second portion of the data stream over the second antenna state.