# US 12,113,739 B2 · Wireless communication method and apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,113,739 B2 - Document ID: US12113739B2 - Status: Granted - Kind: B2 - Application number: 17/323,751 - Filed: 2021-05-18 - Published: 2021-09-02 - Granted: 2024-10-08 - Earliest claimed: 2018-11-19 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Guohua Zhou; Junchao Li; Hao Tang - Web page: https://patentgrep.com/patent/US12113739B2 ## CPC - H04B 7/18504: {Aircraft used as relay or high altitude atmospheric platform} - H04L 5/005: {of common pilots, i.e. pilots destined for multiple users or terminals} - H04B 7/086: {using weights depending on external parameters, e.g. direction of arrival [DOA], predetermined weights or beamforming} - H04L 5/0091: {Signalling for the administration of the divided path, e.g. signalling of configuration information} - H04W 16/28: using beam steering - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04W 72/1268: of uplink data flows - H04L 5/001: {the frequencies being arranged in component carriers} - H04W 56/0045: {compensating for timing error by altering transmission time} - H04W 72/27: between access points - H04B: TRANSMISSION - 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 This application provides a wireless communication method and apparatus. The method includes: A second network device sends, to a first terminal device and at least one network device, first indication information used to indicate to send a common pilot signal on a common transmission resource, so that the first terminal device sends the common pilot signal to the at least one network device on the common transmission resource, and each network device receives and demodulates the common pilot signal, and adjusts a receive beam in a direction of the first terminal device based on the common pilot signal. ## Claims ### Claim 1 A method of wireless communication, wherein the method comprises: receiving, by a first network device, first indication information from a second network device, wherein the first indication information indicates a common pilot signal carried on a common transmission resource; receiving, by the first network device, the common pilot signal from a first terminal device; adjusting, by the first network device, a receive beam in a direction of the first terminal device based on the common pilot signal; and sending, by the first network device, a first measurement result to the second network device, wherein the first measurement result indicates signal strength of the common pilot signal on at least one carrier, and the at least one carrier belongs to a carrier corresponding to the first network device. ### Claim 2 (depends on 1) The method according to claim 1, wherein the first indication information comprises pilot signal indication information, and the pilot signal indication information indicates the common pilot signal. ### Claim 3 (depends on 1) The method according to claim 1, wherein the first indication information comprises resource indication information, and the resource indication information indicates the common transmission resource. ### Claim 4 (depends on 1) The method according to claim 1, wherein the method further comprises: receiving, by the first network device, second indication information from the second network device, wherein the second indication information indicates a first carrier in the at least one carrier; and receiving, by the first network device, uplink data from the first terminal device on the first carrier. ### Claim 5 (depends on 4) The method according to claim 4, wherein the method further comprises: sending, by the first network device, scheduling information to the first terminal device by using the second network device, wherein the scheduling information comprises a transmission resource that carries the uplink data, and the transmission resource comprises the first carrier; and sending, by the first network device, feedback information for the uplink data to the first terminal device by using the second network device. ### Claim 6 A method of wireless communication, wherein the method comprises: sending, by a second network device, first indication information to a first terminal device and a first network device, wherein the first indication information indicates a common pilot signal carried on a common transmission resource, wherein an angle direction of the first terminal device is determined based on the common pilot signal; and obtaining, by the second network device, a measurement result, wherein the measurement result indicates signal strength of the common pilot signal carried on each carrier in a first carrier group, the carrier in the first carrier group belongs to a carrier corresponding to at least one network device, and the first network device belongs to the at least one network device. ### Claim 7 (depends on 6) The method according to claim 6, wherein the first indication information comprises pilot signal indication information, and the pilot signal indication information indicates the common pilot signal. ### Claim 8 (depends on 6) The method according to claim 6, wherein the first indication information comprises resource indication information, and the resource indication information indicates the common transmission resource. ### Claim 9 (depends on 6) The method according to claim 6, wherein the method further comprises: selecting, by the second network device based on the measurement result, a first carrier used for uplink transmission between the first terminal device and the first network device from the first carrier group; and sending, by the second network device, second indication information to the first network device, wherein the second indication information indicates the first carrier. ### Claim 10 (depends on 9) The method according to claim 9, wherein the method further comprises: sending, by the second network device to the first terminal device, scheduling information from the first network device, wherein the scheduling information comprises a transmission resource that carries uplink data, and the transmission resource comprises the first carrier; and sending, by the second network device to the first terminal device, feedback information that is for the uplink data and that is from the first network device. ### Claim 11 A wireless communication method, wherein the method comprises: receiving, by a first terminal device, first indication information from a second network device, wherein the first indication information indicates a common pilot signal carried on a common transmission resource, wherein an angle direction of the first terminal device is determined based on the common pilot signal; sending, by the first terminal device, the common pilot signal to a first network device; receiving, by the first terminal device, scheduling information from the first network device by using the second network device, wherein the scheduling information indicates a transmission resource that carries the uplink data, and the transmission resource comprises the first carrier; and receiving, by the first terminal device, feedback information that is for the uplink data and that is from the first network device by using the second network device. ### Claim 12 (depends on 11) The method according to claim 11, wherein the first indication information comprises pilot signal indication information, and the pilot signal indication information indicates the common pilot signal. ### Claim 13 (depends on 11) The method according to claim 11, wherein the first indication information comprises resource indication information, and the resource indication information indicates the common transmission resource. ### Claim 14 (depends on 11) The method according to claim 11, wherein the method further comprises: sending, by the first terminal device, uplink data to the first network device on a first carrier in a first carrier group, wherein each carrier in the first carrier group carries the common pilot signal, the carrier in the first carrier group belongs to a carrier corresponding to at least one network device, and the first network device belongs to the at least one network device.