Apparatus and method for transmitting a reference signal in a wireless communication system
AssigneePantech Co., Ltd.
InventorsSungjun Yoon, Kitae Kim
Life of this patent
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Abstract
The present specification relates to a method/apparatus for extending and transmitting a reference signal, and to a method and apparatus for transmitting a cyclic shift (hereinafter, referred to as CS) parameter. In generating the extended reference signal, the CS is determined as a function for both a basic CS parameter and an extended CS parameter.
Claims9
A method for extending and transmitting a reference signal generated by using a cyclic shift (CS), the method comprising:
- receiving a basic CS parameter and an extended CS parameter;
- determining an extended CS based on a function of the received basic CS parameter and the received extended CS parameter;
- generating a reference signal by using the determined extended CS;
- and
- transmitting the generated reference signal,
- wherein the reference signal corresponds to a sounding reference signal (SRS), and the extended CS is determined by
- α
-
- (
- n
- SRS
- CS
- ,
- n
- SRS
- ,
- extend
- CS
- )
- =
- 2
-
- π
-
- (
- n
- SRS
- CS
- +
- n
- SRS
- ,
- extend
- CS
- /
- 2
- )
- 8
- ,
-
- and
- n
- SRS
- ,
- extend
- CS
- ∈
- {
- 0
- ,
- 1
- }
- ,
- α
-
- (
- n
- SRS
- CS
- ,
- n
- SRS
- ,
- extend
- CS
- )
- =
- 2
-
- π
-
- (
- n
- SRS
- CS
- ·
- (
- n
- SRS
- ,
- extend
- CS
- +
- 1
- )
- +
- n
- SRS
- ,
- extend
- CS
- /
- 2
- )
- 8
- ,
-
- and
-
-
- n
- SRS
- ,
- extend
- CS
- ∈
- {
- 0
- ,
- 1
- }
- ,
- or
- α
-
- (
- n
- SRS
- CS
- ,
- n
- SRS
- ,
- extend
- CS
- )
- =
- 2
-
- π
-
- (
- n
- SRS
- CS
- ·
- (
- n
- SRS
- ,
- extend
- CS
- +
- 1
- )
- +
- 3
-
- n
- SRS
- ,
- extend
- CS
- /
- 2
- )
- 8
- ,
-
- and
-
-
- n
- SRS
- ,
- extend
- CS
- ∈
- {
- 0
- ,
- 1
- }
- ,
- when the basic CS parameter is nSRSCS, the extended CS parameter is nSRS,extendCS, and the extended CS is α(nSRSCS, nSRS,extendCS).
A method for transmitting a cyclic shift (CS) parameter for extending a reference signal generated by using a CS, the method comprising:
- determining a basic CS parameter and an extended CS parameter based on the number of reference signals requiring support;
- and
- transmitting the determined basic CS parameter and the determined extended CS parameter,
- wherein the number of the reference signals requiring the support corresponds to the number of multiplexing CS factors which are to be simultaneously transmitted in a state where CS values are caused to differ from each other.
An apparatus for extending and transmitting a reference signal generated by using a cyclic shift (CS), the apparatus comprising:
- a transmitter/receiver for receiving a basic CS parameter and an extended CS parameter, and transmitting a generated reference signal;
- an extended CS determiner for determining an extended CS based on the received basic CS parameter and the received extended CS parameter;
- and
- a reference signal generator for generating a reference signal by using the determined extended CS,
- wherein the reference signal corresponds to a sounding reference signal (SRS), and the extended CS is determined by
- α
-
- (
- n
- SRS
- CS
- ,
- n
- SRS
- ,
- extend
- CS
- )
- =
- 2
-
- π
-
- (
- n
- SRS
- CS
- +
- n
- SRS
- ,
- extend
- CS
- /
- 2
- )
- 8
- ,
-
- and
- n
- SRS
- ,
- extend
- CS
- ∈
- {
- 0
- ,
- 1
- }
- ,
- α
-
- (
- n
- SRS
- CS
- ,
- n
- SRS
- ,
- extend
- CS
- )
- =
- 2
-
- π
-
- (
- n
- SRS
- CS
- ·
- (
- n
- SRS
- ,
- extend
- CS
- +
- 1
- )
- +
- n
- SRS
- ,
- extend
- CS
- /
- 2
- )
- 8
- ,
-
- and
-
-
- n
- SRS
- ,
- extend
- CS
- ∈
- {
- 0
- ,
- 1
- }
- ,
- or
- α
-
- (
- n
- SRS
- CS
- ,
- n
- SRS
- ,
- extend
- CS
- )
- =
- 2
-
- π
-
- (
- n
- SRS
- CS
- ·
- (
- n
- SRS
- ,
- extend
- CS
- +
- 1
- )
- +
- 3
-
- n
- SRS
- ,
- extend
- CS
- /
- 2
- )
- 8
- ,
-
- and
-
-
- n
- SRS
- ,
- extend
- CS
- ∈
- {
- 0
- ,
- 1
- }
- ,
- when the basic CS parameter is nSRSCS, the extended CS parameter is nSRS,extendCS, and the extended CS is α(mSRSCS, nSRS,extendCS).
An apparatus for transmitting a cyclic shift (CS) parameter for extending a reference signal generated by using a CS, the apparatus comprising:
- a CS parameter setter for setting a basic CS parameter and an extended CS parameter based on the number of reference signals requiring support;
- and
- a transmitter for transmitting the set basic CS parameter and the set extended CS parameter,
- wherein the number of the reference signals requiring the support corresponds to the number of multiplexing CS factors which are to be simultaneously transmitted in a state where CS values are caused to differ from each other.
A method for extending and transmitting a reference signal generated by using a cyclic shift (CS), the method comprising:
- receiving a basic CS parameter and an extended CS parameter;
- determining an extended CS based on a function of the received basic CS parameter and the received extended CS parameter;
- generating a reference signal by using the determined extended CS;
- and
- transmitting, by a wireless transceiver, the generated reference signal,
- wherein the reference signal corresponds to a sounding reference signal (SRS), and wherein generating the SRS comprises:
- generating an SRS sequence by multiplying ru,v(n) corresponding to a base sequence by ejαn, when α corresponding to the extended CS is calculated;
- mapping the SRS sequence into a time-frequency resource domain;
- and generating a signal including the mapped SRS by using a signal generator.
Dependencies are inferred from the claim text.