Method for transmitting and receiving uplink reference signal in a wireless communication system having multiple antennas
AssigneeLG Electronics Inc.
InventorsDaewon Lee, Young Woo Yun, Yujin Noh, Bonghoe Kim, Ki Jun Kim
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Abstract
A method for transmitting and receiving uplink reference signals in a wireless communication system having multiple antennas is disclosed. The uplink reference signal transmission method includes transmitting a first reference signal sequence to a base station, and transmitting a second reference signal sequence to the base station, the second reference signal sequence being obtained by cyclically shifting the first reference signal sequence by a first cyclic delay value.
Claims5
A method for transmitting uplink reference signals through multiple antennas by a user equipment in a wireless communication system, the method comprising:
- receiving control information related to a first cyclic delay value and a second cyclic delay value from a base station;
- transmitting a first reference signal sequence to the base station, wherein the first reference signal sequence is generated by cyclically shifting a base reference signal sequence by the first cyclic delay value;
- and
- transmitting a second reference signal sequence to the base station, the second reference signal sequence being obtained by cyclically shifting the first reference signal sequence by a multiple of the second cyclic delay value,
- wherein the second cyclic delay value is set to a minimum of values larger than a cyclic prefix length,
- wherein the first cyclic delay value is determined according to the cyclic prefix length used in the wireless communication system, and
- wherein the first cyclic delay value is calculated by multiplying a symbol duration by a minimum of p/12 values larger than a value resulting from dividing the cyclic prefix length by the symbol duration, p being integers equal to or larger than 0 and less than 12.
A method for receiving uplink reference signals transmitted through multiple antennas in a wireless communication system, the method comprising:
- transmitting control information related to a first cyclic delay value and a second cyclic delay value to a user equipment;
- and
- receiving a plurality of reference signal sequences including a first reference signal sequence generated based on the first cyclic delay value and a second reference signal sequence generated by cyclically shifting the first reference signal sequence by a multiple of the second cyclic delay value,
- wherein the second cyclic delay value is set to a minimum of values larger than a cyclic prefix length,
- wherein the first cyclic delay value is determined according to the cyclic prefix length used in the wireless communication system, and
- wherein the first cyclic delay value is calculated by multiplying a symbol duration by a minimum of p/12 values larger than a value resulting from dividing the cyclic prefix length by the symbol duration, p being integers equal to or larger than 0 and less than 12.
Dependencies are inferred from the claim text.