# US 10,484,935 B2 · Discovery for spectrum renting > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,484,935 B2 - Document ID: US10484935B2 - Status: Granted - Kind: B2 - Application number: 15/950,491 - Filed: 2018-04-11 - Published: 2018-12-13 - Granted: 2019-11-19 - Earliest claimed: 2017-06-12 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Junyi Li; Aleksandar Damnjanovic; Michael Mingxi Fan; Yongbin Wei; Tamer Kadous; Ahmed Sadek - Web page: https://patentgrep.com/patent/US10484935B2 ## CPC - H04W 48/16: Discovering, processing access restriction or access information - H04W 16/14: Spectrum sharing arrangements {between different networks} - H04W 56/001: {Synchronization between nodes} - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04W 72/12: Wireless traffic scheduling - H04W 72/20: Control channels or signalling for resource management - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Wireless communication systems and methods related to service advertising and discovery with dynamic spectrum use are provided. A user equipment (UE) receives, from a first wireless communication device, a network information signal in a spectrum. The UE receives, from a second wireless communication device, a service advertising signal based on at least a synchronization to the network information signal. The service advertising signal indicates an availability of a service. The UE transmits, to the second wireless communication device, a request for the service. The first wireless communication device and the second wireless communication device are associated with different operating entities of the spectrum. ## Claims ### Claim 1 A method of wireless communication, comprising: receiving, by a user equipment (UE) from a first base station (BS) of a first network operated by a first operating entity, a network information signal in a frequency band allocated to the first operating entity; receiving, by the UE from a second BS of a second network operated by a second operating entity different from the first operating entity, a service advertising signal indicating an availability of a service of the second network, the service advertising signal received in the frequency band and in synchronization with the network information signal of the first network; transmitting, by the UE to the second BS, a request for the service of the second network; and communicating, by the UE with the second BS, a communication signal in the frequency band over the second network during a time period, wherein the communicating is based on the second BS being promoted from a first priority to a second priority for sharing the frequency band with the first BS during the time period in response to the request. ### Claim 2 (depends on 1) The method of claim 1, wherein the first operating entity is a controlling entity of the frequency band, wherein the second operating entity is a local operating entity of the frequency band, and wherein the UE is positioned in a geographic coverage area of the second BS of the second operating entity. ### Claim 3 (depends on 1) The method of claim 1, wherein the network information signal indicates a service advertising signal transmission time period, and wherein the method further comprises monitoring for the service advertising signal during the service advertising signal transmission time period. ### Claim 4 (depends on 3) The method of claim 3, wherein the network information signal indicates a periodicity of the service advertising signal transmission time period. ### Claim 5 (depends on 4) The method of claim 4, wherein the network information signal includes a synchronization signal, and wherein the periodicity of the service advertising signal transmission time period is different from a transmission periodicity of the synchronization signal. ### Claim 6 (depends on 4) The method of claim 4, further comprising receiving, by the UE from the first BS, another network information channel signal indicating a modification to the periodicity of the service advertising signal transmission time period. ### Claim 7 (depends on 1) The method of claim 1, wherein the communicating is further based on a spectrum use grant from the first BS, the communication signal associated with the service. ### Claim 8 A method of wireless communication, comprising: obtaining, by a first base station (BS) of a first network operated by a first operating entity, a network configuration for communication in a frequency band allocated to a second operating entity different from the first operating entity; transmitting, by the first BS in the frequency band based on the network configuration, a service advertising signal indicating an availability of a service of the first network, the service advertising signal transmitted in synchronization with a network information signal of a second network operated by the second operating entity different from the first operating entity; receiving, by the first BS from a user equipment (UE), a request for the service of the first network; and communicating, by the first BS with the UE, a communication signal in the frequency band over the first network during a time period, wherein the communicating is based on the first BS being promoted from a first priority to a second priority for sharing the frequency band with the second network during the time period in response to the request. ### Claim 9 (depends on 8) The method of claim 8, wherein the first operating entity is a local operating entity of the frequency band, wherein the second operating entity is a controlling entity of the frequency band, and wherein the UE is positioned in a geographic coverage area of the first BS of the first operating entity. ### Claim 10 (depends on 8) The method of claim 8, wherein the obtaining includes: requesting, by the first BS, an allocation in the frequency band for a service advertising signal transmission; and receiving, by the first BS, the network configuration indicating a service advertising signal transmission time period allocated to the first BS, and wherein the transmitting the service advertising signal includes transmitting the service advertising signal during the service advertising signal transmission time period. ### Claim 11 (depends on 10) The method of claim 10, wherein the network configuration further indicates a periodicity of the service advertising signal transmission time period. ### Claim 12 (depends on 11) The method of claim 11, wherein the network information signal includes a synchronization signal, and wherein the periodicity of the service advertising signal transmission time period is different from a transmission periodicity of the synchronization signal. ### Claim 13 (depends on 11) The method of claim 11, further comprising receiving, by the first BS, an instruction to modify the periodicity of the service advertising signal transmission time period. ### Claim 14 (depends on 8) The method of claim 8, further comprising receiving, by the first BS, an instruction to suspend a subsequent service advertising signal transmission. ### Claim 15 (depends on 8) The method of claim 8, further comprising: requesting, by the first BS, an allocation in the frequency band for the time period to provide the service, and wherein the communication signal is associated with the service. ### Claim 16 A method of wireless communication, comprising: communicating, by a first wireless communication device with a second wireless communication device, a service advertising signal in a first frequency band indicating an availability of a service in a second frequency band; and communicating, by the first wireless communication device with the second wireless communication device in the second frequency band, a communication signal during a time period based on a spectrum use grant from a controlling entity of the second frequency band, the communication signal associated with the service, the spectrum use grant granting at least one of the first wireless communication device or the second wireless communication device as a primary user in the second frequency band, wherein the first frequency band and the second frequency band are different. ### Claim 17 (depends on 16) The method of claim 16, wherein at least one of the first wireless communication device or the second wireless communication device is associated with a local operating entity of the second frequency band. ### Claim 18 (depends on 16) The method of claim 16, wherein the communicating the service advertising signal includes transmitting, by the first wireless communication device, the service advertising signal, and wherein the method further comprises receiving, by the first wireless communication device from the second wireless communication device, a request for the service. ### Claim 19 (depends on 18) The method of claim 18, wherein the receiving the request includes receiving the request in at least one of the first frequency band or the second frequency band. ### Claim 20 (depends on 16) The method of claim 16, wherein the communicating the service advertising signal includes receiving, by the first wireless communication device from the second wireless communication device, the service advertising signal, and wherein the method further comprises transmitting, by the first wireless communication device to the second wireless communication device, a request for the service. ### Claim 21 (depends on 20) The method of claim 20, wherein the transmitting the request includes transmitting the request in at least one of the first frequency band or the second frequency band. ### Claim 22 (depends on 16) The method of claim 16, wherein the first frequency band is an unlicensed frequency band. ### Claim 23 (depends on 16) The method of claim 16, wherein the first frequency band is in a 3.5 gigahertz (GHz) spectrum. ### Claim 24 An apparatus comprising: a transceiver configured to: receive, from a first base station (BS) of a first network operated by a first operating entity, a network information signal in a frequency band allocated to the first operating entity; receive, from a second BS of a second network operated by a second operating entity different from the first operating entity, a service advertising signal indicating an availability of a service of the second network, the service advertising signal received in the frequency band and in synchronization with the network information signal of the first network; transmit, to the second BS, a request for the service of the second network; and communicate, with the second BS, a communication signal in the frequency band over the second network during a time period, wherein the communication signal is communicated based on the second BS being promoted from a first priority to a second priority for sharing the frequency band with the first BS during the time period in response to the request. ### Claim 25 (depends on 24) The apparatus of claim 24, wherein the first operating entity is a controlling entity of the frequency band, wherein the second operating entity is a local operating entity of the frequency band, and wherein the apparatus is positioned in a geographic coverage area of the second BS of the second operating entity. ### Claim 26 (depends on 24) The apparatus of claim 24, wherein the network information signal indicates a service advertising signal transmission time period, and wherein the apparatus further comprises a processor configured to monitor for the service advertising signal during the service advertising signal transmission time period. ### Claim 27 (depends on 26) The apparatus of claim 26, wherein the network information signal indicates a periodicity of the service advertising signal transmission time period. ### Claim 28 (depends on 27) The apparatus of claim 27, wherein the network information signal includes a synchronization signal, and wherein the periodicity of the service advertising signal transmission time period is different from a transmission periodicity of the synchronization signal. ### Claim 29 (depends on 27) The apparatus of claim 27, wherein the transceiver is further configured to receive, from the first BS, another network information channel signal indicating a modification to the periodicity of the service advertising signal transmission time period. ### Claim 30 (depends on 24) The apparatus of claim 24, wherein the transceiver configured to communicate the communication signal is further configured to communicate, with the second BS, the communication signal in the frequency band based on a spectrum use grant from the first BS, the communication signal associated with the service.