Method and apparatus for transmitting uplink signal in wireless communication system
AssigneeLG Electronics Inc.
InventorsJonghyun Park, Hanbyul Seo, Kijun Kim, Byounghoon Kim
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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.
Claims13
A method for transmitting an uplink signal at a user equipment (UE) in a wireless communication system, the method comprising:
- when a virtual cell ID nIDPUSCH for a reference signal for demodulation of a physical uplink shared channel (PUSCH) is provided, generating a sequence of the reference signal on the basis of nIDPUSCH;
- and
- transmitting the generated reference signal to an eNB,
- wherein, when nIDPUSCH is provided and sequence group hopping for the reference signal is enabled, a pseudo-random sequence generator used to determine a group hopping pattern is initialized according to
- c
- init
- =
- ⌊
- n
- ID
- PUSCH
- 30
- ⌋
- at the start of each radio frame,
- wherein cinit is an initial value of a pseudo-random sequence.
A UE device for transmitting an uplink signal, comprising:
- a receiver;
- a transmitter;
- and
- a processor,
- wherein, when a virtual cell ID nIDPUSCH for a reference signal for demodulation of a physical uplink shared channel (PUSCH) is provided, the processor is configured to generate a sequence of the reference signal on the basis of nIDPUSCH and to transmit the generated reference signal to an eNB,
- wherein, when nIDPUSCH is provided and sequence group hopping for the reference signal is enabled, a pseudo-random sequence generator used to determine a group hopping pattern is initialized according to
- c
- init
- =
- ⌊
- n
- ID
- PUSCH
- 30
- ⌋
- at the start of each radio frame,
- wherein cinit is an initial value of a pseudo-random sequence.
Dependencies are inferred from the claim text.