# US 2018/0323928 A1 · Sounding Reference Signal Design In Mobile Communications > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0323928 A1 - Document ID: US20180323928A1 - Status: Published application - Kind: A1 - Application number: 15/970,828 - Filed: 2018-05-03 - Published: 2018-11-08 - Earliest claimed: 2017-05-05 - Assignees: Mediatek Inc. - Applicants: MediaTek Inc. - Inventors: Weidong Yang - Web page: https://patentgrep.com/patent/US20180323928A1 ## CPC - H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH} - 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 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal} - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04J 2211/005: Long term evolution [LTE] - H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT} - H04L 5/001: {the frequencies being arranged in component carriers} - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04J: MULTIPLEX COMMUNICATION (transmission in general H04B; peculiar to transmission of digital information H04L5/00; systems for the simultaneous or sequential transmission of more than one television signal H04N7/08; in exchanges H04Q11/00; stereophonic systems H04S) ## Abstract Various solutions for sounding reference signal (SRS) design with respect to user equipment and network apparatus in mobile communications are described. An apparatus may receive a first SRS configuration. The apparatus may determine a first operating bandwidth part. The apparatus may further transmit a first SRS on the first operating bandwidth part according to the first SRS configuration. The first SRS configuration may correspond to the first operating bandwidth part. ## Claims ### Claim 1 A method, comprising: receiving, by a processor of an apparatus, a first sounding reference signal (SRS) configuration; determining, by the processor, a first operating bandwidth part; and transmitting, by the processor, a first SRS on the first operating bandwidth part according to the first SRS configuration, wherein the first SRS configuration corresponds to the first operating bandwidth part. ### Claim 2 (depends on 1) The method of claim 1, further comprising: receiving, by the processor, a second SRS configuration; determining, by the processor, a second operating bandwidth part; and transmitting, by the processor, a second SRS on the second operating bandwidth part according to the second SRS configuration, wherein the second SRS configuration corresponds to the second operating bandwidth part, and wherein the second operating bandwidth part is different from the first operating bandwidth part. ### Claim 3 (depends on 2) The method of claim 2, wherein the first SRS configuration and the second SRS configuration are received in separate radio resource control (RRC) configurations. ### Claim 4 (depends on 2) The method of claim 2, wherein the first SRS configuration indicates the first operating bandwidth part, and wherein the second SRS configuration indicates the second operating bandwidth part. ### Claim 5 (depends on 2) The method of claim 2, wherein the first SRS configuration indicates a first set of physical resource block (PRBs), and wherein the second SRS configuration indicates a second set of PRBs. ### Claim 6 (depends on 2) The method of claim 2, wherein at least one of the first operating bandwidth part and the second operating bandwidth part comprises a wideband operating bandwidth. ### Claim 7 (depends on 2) The method of claim 2, wherein at least one of the first operating bandwidth part and the second operating bandwidth part comprises a partial band operating bandwidth. ### Claim 8 (depends on 2) The method of claim 2, wherein at least one of the first operating bandwidth part and the second operating bandwidth part comprises an active bandwidth part within an active component carrier. ### Claim 9 (depends on 2) The method of claim 2, further comprising: determining, by the processor, the first SRS configuration according to the first operating bandwidth part; and determining, by the processor, the second SRS configuration according to the second operating bandwidth part. ### Claim 10 (depends on 1) The method of claim 1, further comprising: truncating, by the processor, a bandwidth part of the first SRS configuration to match with the first operating bandwidth part when the first operating bandwidth part is less than the bandwidth part of the first SRS configuration. ### Claim 11 An apparatus, comprising: a transceiver capable of wirelessly communicating with a plurality of nodes of a wireless network; and a processor communicatively coupled to the transceiver, the processor capable of: receiving, via the transceiver, a first sounding reference signal (SRS) configuration; determining a first operating bandwidth part; and transmitting, via the transceiver, a first SRS on the first operating bandwidth part according to the first SRS configuration, wherein the first SRS configuration corresponds to the first operating bandwidth part. ### Claim 12 (depends on 11) The apparatus of claim 11, wherein the processor is further capable of: receiving, via the transceiver, a second SRS configuration; determining a second operating bandwidth part; and transmitting, via the transceiver, a second SRS on the second operating bandwidth part according to the second SRS configuration, wherein the second SRS configuration corresponds to the second operating bandwidth part, and wherein the first operating bandwidth part is different from the second operating bandwidth part. ### Claim 13 (depends on 12) The apparatus of claim 12, wherein the first SRS configuration and the second SRS configuration are received in separate radio resource control (RRC) configurations. ### Claim 14 (depends on 12) The apparatus of claim 12, wherein the first SRS configuration indicates the first operating bandwidth part, and wherein the second SRS configuration indicates the second operating bandwidth part. ### Claim 15 (depends on 12) The apparatus of claim 12, wherein the first SRS configuration indicates a first set of physical resource block (PRBs), and wherein the second SRS configuration indicates a second set of PRBs. ### Claim 16 (depends on 12) The apparatus of claim 12, wherein at least one of the first operating bandwidth part and the second operating bandwidth part comprises a wideband operating bandwidth. ### Claim 17 (depends on 12) The apparatus of claim 12, wherein at least one of the first operating bandwidth part and the second operating bandwidth part comprises a partial band operating bandwidth. ### Claim 18 (depends on 12) The apparatus of claim 12, wherein at least one of the first operating bandwidth part and the second operating bandwidth part comprises an active bandwidth part within an active component carrier. ### Claim 19 (depends on 12) The apparatus of claim 12, wherein the processor is further capable of: determining the first SRS configuration according to the first operating bandwidth part; and determining the second SRS configuration according to the second operating bandwidth part. ### Claim 20 (depends on 11) The apparatus of claim 11, wherein the processor is further capable of: truncating a bandwidth part of the first SRS configuration to match with the first operating bandwidth part when the first operating bandwidth part is less than the bandwidth part of the first SRS configuration.