# US 11,310,016 B2 · Sounding reference signal sequence design > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,310,016 B2 - Document ID: US11310016B2 - Status: Granted - Kind: B2 - Application number: 16/612,333 - Filed: 2018-06-12 - Published: 2020-06-04 - Granted: 2022-04-19 - Earliest claimed: 2017-06-12 - Assignees: Apple Inc. - Applicants: Apple Inc. - Inventors: Sameer Pawar; Alexei Davydov - Web page: https://patentgrep.com/patent/US11310016B2 ## CPC - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT} - H04L 5/0037: {Inter-user or inter-terminal allocation} - H04L 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal} - H04L 5/0091: {Signalling for the administration of the divided path, e.g. signalling of configuration information} - H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network - 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) ## Abstract Described is an apparatus of an Evolved Node-B (eNB). The apparatus may comprise a first circuitry and a second circuitry. The first circuitry may be operable to determine a first Sounding Reference Signal (SRS) sequence and a second SRS sequence. The second circuitry may be operable to process a first Uplink (UL) transmission from the first UE incorporating the first SRS sequence over a first set of subcarrier frequencies. The second circuitry may also be operable to process a second UL transmission from the second UE incorporating the second SRS sequence over a second set of subcarrier frequencies. The second SRS sequence may comprise at least a first block that overlaps the first set of subcarrier frequencies and a second block that does not overlap the first set of subcarrier frequencies. ## Claims ### Claim 1 A base station (BS) operable to communicate with a first User Equipment (UE) and a second UE on a wireless network, comprising: one or more processors to: determine a first Sounding Reference Signal (SRS) sequence and a second SRS sequence; process a first Uplink (UL) transmission from the first UE incorporating the first SRS sequence over a first set of subcarrier frequencies; and process a second UL transmission from the second UE incorporating the second SRS sequence over a second set of subcarrier frequencies, wherein the second SRS sequence comprises at least a first set of physical resource blocks (PRBs) that overlaps the first set of subcarrier frequencies and a second set of PRBs that does not overlap the first set of subcarrier frequencies, and an interface for sending the first transmission and the second transmission to a transmission circuitry. ### Claim 2 (depends on 1) The BS of claim 1, wherein the first SRS sequence and the second SRS sequence are established based on a same Zadoff Chu (ZC) sequence. ### Claim 3 (depends on 1) The BS of claim 1, wherein the first SRS sequence and the first set of PRBs of the second SRS sequence are established based on a first Zadoff Chu (ZC) sequence; and wherein the second set of PRBs of the second SRS sequence is established based on a second ZC sequence. ### Claim 4 (depends on 1) The BS of claim 1, wherein the one or more processors are to: generate a configuration transmission to the first UE comprising one or more parameters of the first SRS sequence; and generate a configuration transmission to the second UE comprising one or more parameters of the second SRS sequence. ### Claim 5 (depends on 1) The BS of claim 1, wherein the first SRS sequence and the second SRS sequence are received in a same Orthogonal Frequency Division Multiplexing (OFDM) symbol. ### Claim 6 (depends on 1) The BS of claim 1, wherein the first set of PRBs of the second SRS sequence has a relative phase rotation with respect to the second set of PRBs of the second SRS sequence. ### Claim 7 Machine readable storage media having machine executable instructions that, when executed, cause one or more processors of a base station (BS) operable to communicate with a first User Equipment (UE) and a second UE on a wireless network to perform operations comprising: determining a first Sounding Reference Signal (SRS) sequence and a second SRS sequence; processing a first Uplink (UL) transmission from the first UE incorporating the first SRS sequence over a first set of subcarrier frequencies; and processing a second UL transmission from the second UE incorporating the second SRS sequence over a second set of subcarrier frequencies, wherein the second SRS sequence comprises at least a first set of physical resource blocks (PRBs) that overlaps the first set of subcarrier frequencies and a second set of PRBs that does not overlap the first set of subcarrier frequencies. ### Claim 8 (depends on 7) The machine readable storage media of claim 7, wherein the first SRS sequence and the second SRS sequence are established based on a same Zadoff Chu (ZC) sequence. ### Claim 9 (depends on 7) The machine readable storage media of claim 7, wherein the first SRS sequence and the first set of PRBs of the second SRS sequence are established based on a first Zadoff Chu (ZC) sequence; and wherein the second set of PRBs of the second SRS sequence is established based on a second ZC sequence. ### Claim 10 (depends on 7) The machine readable storage media of claim 7, the operations further comprising: generating a configuration transmission to the first UE comprising one or more parameters of the first SRS sequence; and generating a configuration transmission to the second UE comprising one or more parameters of the second SRS sequence. ### Claim 11 (depends on 7) The machine readable storage media of claim 7, wherein the first SRS sequence and the second SRS sequence are received in a same Orthogonal Frequency Division Multiplexing (OFDM) symbol. ### Claim 12 (depends on 7) The machine readable storage media of claim 7, wherein the first set of PRBs of the second SRS sequence has a relative phase rotation with respect to the second set of PRBs of the second SRS sequence. ### Claim 13 A User Equipment (UE) operable to communicate with a base station (BS) on a wireless network, comprising: one or more processors to: process a first configuration transmission carrying an indicator of a Bandwidth Part (BWP) spanning at least part of a bandwidth of a wireless communication channel between the UE and the BS; process a second configuration transmission carrying an indicator of a Sounding Reference Signal (SRS) bandwidth for the BWP; generate an Uplink (UL) transmission for the BWP; and generate an SRS transmission based on the indicator of the SRS bandwidth, and an interface for receiving configuration transmissions from a receiving circuitry and for sending UL transmissions to a transmission circuitry. ### Claim 14 (depends on 13) The UE of claim 13, wherein the BWP is a first BWP, and wherein the one or more processors are to: process another configuration transmission carrying an indicator of a second BWP spanning at least part of a bandwidth of the wireless communication channel; wherein the UL transmission is for one of: the first BWP or the second BWP. ### Claim 15 (depends on 14) The UE of claim 14, wherein the one or more processors are to: process a Downlink Control Information (DCI) transmission carrying an active BWP indicator for establishing a configured BWP for the UL transmission. ### Claim 16 (depends on 13) The UE of claim 13, wherein the one or more processors are to: process a third configuration transmission carrying an indicator of one or more SRS configurations for the BWP. ### Claim 17 (depends on 13) The UE of claim 13, wherein the SRS bandwidth corresponds with a bandwidth part of at least 120 Physical Resource Blocks (PRBs). ### Claim 18 (depends on 13) The UE of claim 13, wherein a total number of UE-specific SRS transmission symbols for a configured SRS resource are accumulative across multiple slots on which the resource is configured. ### Claim 19 Machine readable storage media having machine executable instructions that, when executed, cause one or more processors of a User Equipment (UE) operable to communicate with a base station (BS) on a wireless network to perform operations comprising: processing a first configuration transmission carrying an indicator of a Bandwidth Part (BWP) spanning at least part of a bandwidth of a wireless communication channel between the UE and the BS; processing a second configuration transmission carrying an indicator of a Sounding Reference Signal (SRS) bandwidth for the BWP; generating an Uplink (UL) transmission for the BWP; and generating an SRS transmission based on the indicator of the SRS bandwidth. ### Claim 20 (depends on 19) The machine readable storage media of claim 19, wherein the BWP is a first BWP, the operations further comprising: processing another configuration transmission carrying an indicator of a second BWP spanning at least part of a bandwidth of the wireless communication channel; wherein the UL transmission is for one of: the first BWP or the second BWP. ### Claim 21 (depends on 20) The machine readable storage media of claim 20, the operations further comprising: processing a Downlink Control Information (DCI) transmission carrying an active BWP indicator for establishing a configured BWP for the UL transmission. ### Claim 22 (depends on 19) The machine readable storage media of claim 19, the operations further comprising: processing a third configuration transmission carrying an indicator of one or more SRS configurations for the BWP. ### Claim 23 (depends on 19) The machine readable storage media of claim 19, wherein the SRS bandwidth corresponds with a bandwidth part of at least 120 Physical Resource Blocks (PRBs). ### Claim 24 (depends on 19) The machine readable storage media of claim 19, wherein a total number of UE-specific SRS transmission symbols for a configured SRS resource are accumulative across multiple slots on which the SRS resource is configured.