# US 2014/0192729 A1 · Method for transceiving reference signal in wireless access system and terminal therefor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0192729 A1 - Document ID: US20140192729A1 - Status: Published application - Kind: A1 - Application number: 14/113,358 - Filed: 2012-04-25 - Published: 2014-07-10 - Earliest claimed: 2011-04-25 - Assignees: LG Electronics Inc. - Inventors: Jinmin Kim; Seunghee Han; Hyunwoo Lee - Web page: https://patentgrep.com/patent/US20140192729A1 ## CPC - H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)} - H04L 5/001: {the frequencies being arranged in component carriers} - H04L 5/0042: {Intra-user or intra-terminal allocation} - H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal} - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract Disclosed are a method for transceiving reference signals in a wireless access system supporting carrier aggregation and a terminal therefor. Specifically, the method comprising the steps of: generating a beacon reference signal for estimating an uplink channel using an uplink reference signal; inserting the generated beacon reference signal into the last symbol of a subframe in an uplink frequency region; and transmitting the inserted beacon reference signal to a base station using a subframe that is equivalent to a demodulation reference signal. ## Claims ### Claim 1 A method of transmitting an uplink reference signal in a wireless access system, the method comprising: generating a beacon reference signal for estimating an uplink channel using an uplink reference signal; inserting the generated beacon reference signal into a last symbol of a subframe in an uplink frequency domain; and transmitting the inserted beacon reference signal to a base station via the same subframe as a demodulation reference signal. ### Claim 2 (depends on 1) The method according to claim 1, wherein the uplink reference signal comprises the demodulation reference signal or a sounding reference signal. ### Claim 3 (depends on 2) The method according to claim 2, wherein the uplink frequency domain comprises a physical uplink shared channel (PUSCH) or physical uplink control channel (PUCCH) frequency domain. ### Claim 4 (depends on 3) The method according to claim 3, wherein the generating comprises generating the beacon reference signal using any one of a demodulation reference signal allocated to a first slot of one subframe and a demodulation reference signal allocated to a second slot of the subframe when the beacon reference signal is generated using the demodulation reference signal. ### Claim 5 (depends on 3) The method according to claim 3, wherein the inserting comprises inserting the beacon reference signal by rate-matching or puncturing data resources allocated to the PUSCH frequency domain when the beacon reference signal is inserted into the PUSCH frequency domain. ### Claim 6 (depends on 3) The method according to claim 3, further comprising changing a position of a symbol in which the demodulation reference signal is transmitted. ### Claim 7 (depends on 3) The method according to claim 3, wherein the inserting comprises inserting the beacon reference signal by configuring a bandwidth in which the sounding reference signal is transmitted so as to correspond to the PUSCH or PUCCH frequency domain when the beacon reference signal is generated using the sounding reference signal. ### Claim 8 (depends on 3) The method according to claim 3, wherein the inserting comprises inserting the beacon reference signal by configuring the beacon reference signal such that a sounding reference signal having a smallest bandwidth of a resource block among sounding reference signals contains the PUSCH or PUCCH frequency domain when the beacon reference signal is generated using the sounding reference signal. ### Claim 9 A user equipment (UE) for transmitting an uplink reference signal in a wireless access system, the UE comprising: a radio frequency (RF) unit; and a processor for generating a beacon reference signal for estimating an uplink channel using an uplink reference signal, inserting the generated beacon reference signal into a last symbol of a subframe in an uplink frequency domain, and transmitting the inserted beacon reference signal to a base station via the same subframe as a demodulation reference signal. ### Claim 10 (depends on 9) The UE according to claim 9, wherein the uplink reference signal comprises the demodulation reference signal or a sounding reference signal. ### Claim 11 (depends on 10) The UE according to claim 10, wherein the uplink frequency domain comprises a physical uplink shared channel (PUSCH) or physical uplink control channel (PUCCH) frequency domain. ### Claim 12 (depends on 11) The UE according to claim 11, wherein the processor generates the beacon reference signal using any one of a demodulation reference signal allocated to a first slot of one subframe and a demodulation reference signal allocated to a second slot of the subframe when generating the beacon reference signal using the demodulation reference signal. ### Claim 13 (depends on 11) The UE according to claim 11, wherein the processor inserts the beacon reference signal by rate-matching or puncturing data resources allocated to the PUSCH frequency domain when inserting the beacon reference signal into the PUSCH frequency domain. ### Claim 14 (depends on 11) The UE according to claim 11, wherein the processor changes a position of a symbol in which the demodulation reference signal is transmitted. ### Claim 15 (depends on 11) The UE according to claim 11, wherein the processor inserts the beacon reference signal by configuring a bandwidth in which the sounding reference signal is transmitted so as to correspond to the PUSCH or PUCCH frequency domain when generating the beacon reference signal using the sounding reference signal. ### Claim 16 (depends on 11) The UE according to claim 11, wherein the processor inserts the beacon reference signal by configuring the beacon reference signal such that a sounding reference signal having a smallest bandwidth of a resource block among sounding reference signals contains the PUSCH or PUCCH frequency domain when generating the beacon reference signal using the sounding reference signal.