REFERENCE SIGNAL FOR TIME AND/OR FREQUENCY TRACKING IN A WIRELESS NETWORK
First Claim
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1. A method for including a tracking reference signal (TRS) in a downlink subframe, the method comprising:
- generating a TRS subframe by including the TRS in the downlink subframe at a frequency density of at least one resource element per six resource elements in the TRS subframe; and
transmitting the TRS subframe at a periodicity among other subframes not including the TRS.
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Abstract
A method and an apparatus in a base station are capable of including a tracking reference signal (TRS) in a downlink subframe. The method includes generating a TRS subframe by including the TRS in the downlink subframe at a frequency density of at least one resource element per six resource elements in the TRS subframe. Additionally, the method includes transmitting the TRS subframe at a periodicity among other subframes not including the TRS.
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Citations
24 Claims
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1. A method for including a tracking reference signal (TRS) in a downlink subframe, the method comprising:
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generating a TRS subframe by including the TRS in the downlink subframe at a frequency density of at least one resource element per six resource elements in the TRS subframe; and transmitting the TRS subframe at a periodicity among other subframes not including the TRS. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus in a base station configured to include a tracking reference signal (TRS) in a downlink subframe, the apparatus comprising:
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transmitter processing circuitry configured to generate a TRS subframe by including the TRS at a frequency density of at least one resource element per six resource elements in the TRS subframe; and one or more antennas configured to transmit the TRS subframe at a periodicity among other subframes not including the TRS. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An apparatus in a user equipment configured to identify a tracking reference signal (TRS) in a downlink subframe, the apparatus comprising:
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one or more antennas configured to receive a TRS subframe at a periodicity among other subframes not including the TRS; receiver processing circuitry configured to identify the TRS in the TRS subframe; and a controller configured to perform at least one of frequency or timing tracking using the TRS, wherein a frequency density of the TRS in the TRS subframe is at least one resource element per six resource elements. - View Dependent Claims (22, 23, 24)
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Specification