Apparatus and method for transmitting uplink data
AssigneeElectronics and Telecommunications Research Institute
InventorsSeung Nam Choi, Il Gyu Kim
Life of this patent
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Abstract
Disclosed herein relates to a method of transmitting uplink data to increase multiplex capacity. The method includes allocating, by each of a plurality of machine type communication user equipment (MTC UE), position information within a single resource block (RB), which is used when transmitting uplink data, to the single RB, generating information about a demodulation reference signal (DMRS) used when demodulating the data received from the plurality of MTC UE, and transmitting the position information within the RB and the information about the DMRS to each of the plurality of MTC UE.
Claims14
A method of allocating a wireless resource in a base station, comprising:
- allocating, for each of a plurality of user equipment (UE), position information within a resource block (RB), which is used when transmitting uplink data, to the RB;
- generating information about a pilot signal used when demodulating the data received from the plurality of UE;
- and
- transmitting the position information within the RB and the information about the pilot signal to each of the plurality of UE,
- wherein the pilot signal is defined based on a cyclic shift (CS) value among the information about the pilot signal, multiplied by a Walsh code value, and mapped in the RB based on the position information.
A method of transmitting uplink data in an UE, comprising:
- receiving, from a base station, position information within an RB used when transmitting uplink data, and information about a pilot signal used when demodulating the uplink data;
- configuring a uplink data channel using the received position information within the RB and information about the pilot signal;
- and
- transmitting the configured uplink data channel to the base station,
- wherein the configuring of the uplink data channel includes defining the pilot signal based on a cyclic shift (CS) value among the received information about the pilot signal, multiplying the defined pilot signal by a Walsh code value, and mapping the pilot signal in the RB.
A user equipment (UE) comprising:
- an information receiving unit that receives, from a base station, position information within an RB used when transmitting uplink data, and information about an pilot signal used when demodulating the uplink data;
- a resource mapping unit that maps the data in a data transmission symbol of a uplink data channel using the position information within the RB provided from the information receiving unit;
- a pilot signal generating unit that generates a pilot signal of the uplink data channel using the information about the pilot signal provided from the information receiving unit;
- and
- a uplink data channel transmitting unit that transmits the data mapped by the resource mapping unit and the pilot signal generated by the pilot signal generating unit,
- wherein the pilot signal generating unit generates the pilot signal based on a CS value among the information about the pilot signal, and multiplies the generated pilot signal by a Walsh code value.
Dependencies are inferred from the claim text.