METHOD AND APPARATUS FOR TRANSMITTING UPLINK SIGNAL IN WIRELESS COMMUNICATION SYSTEM
First Claim
1. A method for transmitting, by a user equipment (UE), an uplink signal, the method comprising:
- generating, by the user equipment, a reference signal for demodulation of a physical uplink shared channel (PUSCH) carrying data of the user equipment; and
transmitting, by the user equipment, the PUSCH and the reference signal,wherein the reference signal is generated from a base sequence,wherein the base sequence for the reference signal is determined based on a sequence-shift pattern fPUSCHSS, andwherein the sequence-shift pattern fPUSCHSS is determined according to ‘
fPUSCHSS=(NcellID+Δ
ss) mod 30’
based on Δ
ssε
{0, . . . , 29} provided by a higher layer and a physical cell identity NcellIDε
{0, . . . , 503} when a virtual cell identity is not provided, and the sequence-shift pattern fPUSCHSS is determined according to ‘
fPUSCHSS=nPUSCHID mod 30’
based on the virtual cell identity nPUSCHIDε
{0, . . . , 509} when the virtual cell identity nPUSCHID is provided.
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Accused Products
Abstract
The present invention relates to a wireless communication system, and more particularly, to a method and apparatus for transmitting an uplink signal. A method for transmitting an uplink signal at a UE in a wireless communication system includes, when a virtual cell ID for a reference signal for demodulation of a physical uplink channel is provided, generating a sequence of the reference signal on the basis of the virtual cell ID, and transmitting the generated reference signal to an eNB. A group hopping pattern of the reference signal can be determined on the basis of the virtual cell ID.
4 Citations
10 Claims
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1. A method for transmitting, by a user equipment (UE), an uplink signal, the method comprising:
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generating, by the user equipment, a reference signal for demodulation of a physical uplink shared channel (PUSCH) carrying data of the user equipment; and transmitting, by the user equipment, the PUSCH and the reference signal, wherein the reference signal is generated from a base sequence, wherein the base sequence for the reference signal is determined based on a sequence-shift pattern fPUSCHSS, and wherein the sequence-shift pattern fPUSCHSS is determined according to ‘
fPUSCHSS=(NcellID+Δ
ss) mod 30’
based on Δ
ssε
{0, . . . , 29} provided by a higher layer and a physical cell identity NcellIDε
{0, . . . , 503} when a virtual cell identity is not provided, and the sequence-shift pattern fPUSCHSS is determined according to ‘
fPUSCHSS=nPUSCHID mod 30’
based on the virtual cell identity nPUSCHIDε
{0, . . . , 509} when the virtual cell identity nPUSCHID is provided. - View Dependent Claims (2, 3, 4, 5)
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6. A user equipment (UE) for transmitting an uplink signal, the UE comprising:
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a receiver, a transmitter, and a processor configured to control the receiver and the transmitter, the processor configured to; generate a reference signal for demodulation of a physical uplink shared channel (PUSCH) carrying data of the user equipment; and control the transmitter to transmit the PUSCH and the reference signal, wherein the reference signal is generated from a base sequence, wherein the base sequence for the reference signal is determined based on a sequence-shift pattern fPUSCHSS, and wherein the sequence-shift pattern fPUSCHSS is determined according to ‘
fPUSCHSS=(NcellID+Δ
ss) mod 30’
based on Δ
ssε
{0, . . . , 29} provided by a higher layer and a physical cell identity NcellIDε
{0, . . . , 503} when a virtual cell identity is not provided, and the sequence-shift pattern fPUSCHSS is determined according to ‘
fPUSCHSS=nPUSCHID mod 30’
based on the virtual cell identity nPUSCHIDε
{0, . . . , 509} when the virtual cell identity nPUSCHID is provided. - View Dependent Claims (7, 8, 9, 10)
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Specification