# US 2022/0286247 A1 · Signaling configurations for communication with unmanned aerial systems > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2022/0286247 A1 - Document ID: US20220286247A1 - Status: Published application - Kind: A1 - Application number: 17/194,161 - Filed: 2021-03-05 - Published: 2022-09-08 - Earliest claimed: 2021-03-05 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Le LIU; Alberto RICO ALVARINO; Peter GAAL; Chiranjib SAHA; Umesh PHUYAL; Xiao Feng WANG; Juan MONTOJO; Vishnu Vardhan CHETLUR RAVI - Web page: https://patentgrep.com/patent/US20220286247A1 ## 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 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal} - H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT} - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04B 7/0628: {Diversity capabilities} - H04L 5/0023: {Time-frequency-space} - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04B: TRANSMISSION ## Abstract An apparatus may be configured to communicate at least one pilot signal with another apparatus according to a first configuration, at least one of a lower frequency density or a higher time density being indicated by the first configuration than a second configuration for a type of pilot signal that includes the at least one pilot signal. The apparatus may be further configured to communicate with the other apparatus based on the at least one pilot signal. Another apparatus may be configured to receive, from a base station, spatial relationship information or transmission configuration indicator (TCI) state information corresponding to a directional beam at the UE for communication on a channel. The apparatus may be further configured to apply the directional beam for communication with the base station on another channel in a sub-6 gigahertz (GHz) frequency band. ## Claims ### Claim 1 A method of wireless communication at a wireless communications apparatus, comprising: communicating at least one pilot signal with another apparatus according to a first configuration, at least one of a lower frequency density or a higher time density being indicated by the first configuration than a second configuration for a type of pilot signal that includes the at least one pilot signal; and communicating with the other apparatus based on the at least one pilot signal. ### Claim 2 (depends on 1) The method of claim 1, wherein the first configuration is associated with unmanned aerial vehicle (UAV) communication and the second configuration is associated with terrestrial communication, and wherein the lower frequency density comprises a lower number of subcarriers and the higher time density comprises a greater number of symbols. ### Claim 3 (depends on 1) The method of claim 1, further comprising: determining whether the other apparatus is at an elevation that satisfies a threshold; and applying the first configuration when the elevation satisfies the threshold and applying the second configuration when the elevation fails to satisfy the threshold. ### Claim 4 (depends on 1) The method of claim 1, wherein the at least one pilot signal comprises a set of pilot signals in a same symbol having one of the set of pilot signals every eight subcarriers or twelve subcarriers according to the lower frequency density indicated by the first configuration. ### Claim 5 (depends on 1) The method of claim 1, wherein the at least one pilot signal is carried in at least one of every one symbol, two symbols, or four symbols, or in one, two, three, or four consecutive slots according to the higher time density indicated by the first configuration. ### Claim 6 (depends on 1) The method of claim 1, wherein the communicating the at least one pilot signal comprises: communicating the at least one pilot signal with the other apparatus in a sub-6 gigahertz (GHz) frequency band, wherein the first configuration is applicable to at least the sub-6 GHz frequency band. ### Claim 7 (depends on 1) The method of claim 1, wherein the communicating the at least one pilot signal comprises: receiving the at least one pilot signal from the other apparatus. ### Claim 8 (depends on 1) The method of claim 1, wherein the communicating the at least one pilot signal comprises: transmitting the at least one pilot signal to the other apparatus. ### Claim 9 (depends on 8) The method of claim 8, wherein the at least one pilot signal comprises at least one sounding reference signal communicated on a transmission comb of eight subcarriers or twelve subcarriers for beam management according to the first configuration. ### Claim 10 (depends on 9) The method of claim 9, further comprising: communicating information corresponding to a directional beam via which a sounding reference signal (SRS) is transmitted to the other apparatus in a directional beam sweep associated with unmanned aerial vehicles (UAVs), the directional beam being used for communication with the other apparatus based on the information identifying the signal. ### Claim 11 (depends on 1) The method of claim 1, wherein the apparatus is implemented in a base station or a user equipment (UE). ### Claim 12 A method of wireless communication at a user equipment (UE), comprising: receiving, from a base station, spatial relationship information or transmission configuration indicator (TCI) state information corresponding to a directional beam at the UE for communication on a channel; and applying the directional beam for communication with the base station on another channel in a sub-6 gigahertz (GHz) frequency band. ### Claim 13 (depends on 12) The method of claim 12, wherein the applying the directional beam for communication comprises: applying the directional beam for communication on one of a control channel or a downlink data channel, the beam being configured for the other of the control channel or the downlink data channel. ### Claim 14 (depends on 13) The method of claim 13, wherein the control channel comprises an uplink control channel. ### Claim 15 (depends on 12) The method of claim 12, further comprising: transmitting, in a network including the base station, information indicating a set of capabilities for beamformed communication in the sub-6 GHz frequency band; and receiving a beamforming configuration based on the information indicating the set of capabilities. ### Claim 16 (depends on 12) The method of claim 12, wherein the spatial relationship information or TCI state information corresponding to the directional beam comprises a resource indicator for a sounding reference signal (SRS) configured in an uplink bandwidth part and transmitted via the directional beam. ### Claim 17 A method of wireless communication at a base station, comprising: receiving, from a user equipment (UE), a set of pilot signals respectively corresponding to a set of directional beams of the UE in a directional beam sweep associated with unmanned aerial vehicles (UAVs); and transmitting information indicating a selected one of the set of directional beams based on receiving the set of pilot signals. ### Claim 18 (depends on 17) The method of claim 17, further comprising: calculating a respective measurement for each of the set of pilot signals; and comparing the respective measurements with one another, wherein the selected one of the set of directional beams is based on the comparison of the respective measurements. ### Claim 19 (depends on 17) The method of claim 17, wherein the information indicating the selected one of the set of directional beams comprises at least one of a resource indicator for a sounding reference signal transmitted via the selected one of the set of directional beams or a transmission configuration indicator (TCI) state associated with the selected one of the set of directional beams. ### Claim 20 (depends on 17) The method of claim 17, wherein the information indicating the selected one of the set of directional beams indicates that the selected one of the set of directional beams is applicable to communication with the UE on at least one uplink channel and at least one downlink channel. ### Claim 21 (depends on 17) The method of claim 17, wherein the set of pilot signals comprises a set of sounding reference signals received in a sub-6 gigahertz (GHz) frequency band. ### Claim 22 An apparatus for wireless communication, comprising: a memory; and at least one processor coupled to the memory and configured to: communicate communicating at least one pilot signal with another apparatus according to a first configuration, at least one of a lower frequency density or a higher time density being indicated by the first configuration than a second configuration for a type of pilot signal that includes the at least one pilot signal; and communicate with the other apparatus based on the at least one pilot signal. ### Claim 23 (depends on 22) The apparatus of claim 22, wherein the first configuration is associated with unmanned aerial vehicle (UAV) communication and the second configuration is associated with terrestrial communication, and wherein the lower frequency density comprises a lower number of subcarriers and the higher time density comprises a greater number of symbols. ### Claim 24 (depends on 22) The apparatus of claim 22, wherein the at least one processor is further configured to: determine whether the other apparatus is at an elevation that satisfies a threshold; and apply the first configuration when the elevation satisfies the threshold and apply the second configuration when the elevation fails to satisfy the threshold. ### Claim 25 (depends on 22) The apparatus of claim 22, wherein the at least one pilot signal comprises a set of pilot signals in a same symbol having one of the set of pilot signals every eight subcarriers or twelve subcarriers according to the lower frequency density indicated by the first configuration. ### Claim 26 (depends on 22) The apparatus of claim 22, wherein the at least one pilot signal is carried in at least one of every one symbol, two symbols, or four symbols, or in one, two, three, or four consecutive slots according to the higher time density indicated by the first configuration. ### Claim 27 (depends on 22) The apparatus of claim 22, wherein the communication of the at least one pilot signal comprises to: communicate the at least one pilot signal with the other apparatus in a sub-6 gigahertz (GHz) frequency band, wherein the first configuration is applicable to at least the sub-6 GHz frequency band. ### Claim 28 (depends on 22) The apparatus of claim 22, wherein the communication of the at least one pilot signal comprises to: receive the at least one pilot signal from the other apparatus. ### Claim 29 (depends on 22) The apparatus of claim 22, wherein the communication of the at least one pilot signal comprises to: transmit the at least one pilot signal to the other apparatus. ### Claim 30 (depends on 29) The apparatus of claim 29, wherein the at least one pilot signal comprises at least one sounding reference signal communicated on a transmission comb of eight subcarriers or twelve subcarriers for beam management according to the first configuration.