CHANNEL ESTIMATION BASED UPON USER SPECIFIC AND COMMON REFERENCE SIGNALS
First Claim
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1. A wireless communications method, comprising:
- generating one or more user specific reference signals (UE-RS) and one or more common reference signals (CRS) at a transmitting node;
transmitting the UE-RS and the CRS using a transmission scheme in accordance with a mapping function to enable the user equipment (UE) to estimate a channel based upon CRS observations, UE-RS observations, and the mapping function; and
transmitting data using the transmission scheme in accordance with the mapping function.
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Abstract
Systems and methods are disclosed to facilitate wireless communications. The systems and methods include generating one or more user specific reference signals (UE-RS) and one or more common reference signals (CRS) at a transmitting node; transmitting the UE-RS and the CRS to a user (UE) using a transmission scheme in accordance with a mapping function to enable the UE to estimate a channel based upon CRS observations, UE-RS observations, and the mapping function; and transmitting data using the transmission scheme in accordance with the mapping function.
210 Citations
75 Claims
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1. A wireless communications method, comprising:
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generating one or more user specific reference signals (UE-RS) and one or more common reference signals (CRS) at a transmitting node; transmitting the UE-RS and the CRS using a transmission scheme in accordance with a mapping function to enable the user equipment (UE) to estimate a channel based upon CRS observations, UE-RS observations, and the mapping function; and transmitting data using the transmission scheme in accordance with the mapping function. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A communications apparatus, comprising:
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a memory that retains instructions for; generating one or more user specific reference signals (UE-RS) and one or more common reference signals (CRS); transmitting the UE-RS and the CRS using a transmission scheme in accordance with a mapping function to enable a user equipment (UE) to estimate a channel based upon CRS observations, UE-RS observations, and the mapping function; transmitting data using the transmission scheme in accordance with the mapping function; and a processor that executes the instructions. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. An apparatus operable in a wireless communication system, the apparatus comprising:
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means for generating one or more user specific reference signals (UE-RS) and one or more common reference signals (CRS) at a transmitting node; means for transmitting the UE-RS and the CRS using a transmission scheme in accordance with a mapping function to enable a user equipment (UE) to estimate a channel based upon CRS observations, UE-RS observations, and the mapping function; and means for transmitting data using the transmission scheme in accordance with the mapping function. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50)
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51. A user communications apparatus, comprising:
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a memory that retains instructions for; receiving one or more user specific reference signals (UE-RS) and one or more common reference signals (CRS); implementing a mapping function based upon CRS observations and UE-RS observations to perform channel estimation; decoding data based upon the channel estimation; and a processor that executes the instructions. - View Dependent Claims (52, 53, 54, 55, 56, 57, 58, 59, 60, 61)
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62. A computer program product, comprising:
a computer-readable medium comprising code for; generating one or more user specific reference signals (UE-RS) and one or more common reference signals (CRS) at a transmitting node; transmitting the UE-RS and the CRS using a transmission scheme in accordance with a mapping function to enable a user equipment (UE) to estimate a channel based upon CRS observations, UE-RS observations, and the mapping function; and transmitting data using the transmission scheme in accordance with the mapping function. - View Dependent Claims (63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75)
Specification