# US 11,909,704 B2 · Device, network, and method for communications with spatial-specific sensing > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,909,704 B2 - Document ID: US11909704B2 - Status: Granted - Kind: B2 - Application number: 17/455,787 - Filed: 2021-11-19 - Published: 2022-03-10 - Granted: 2024-02-20 - Earliest claimed: 2014-07-29 - Assignees: Futurewei Technologies, Inc. - Applicants: Futurewei Technologies, Inc. - Inventors: Jialing Liu; Weimin Xiao - Web page: https://patentgrep.com/patent/US11909704B2 ## CPC - H04L 51/234: for tracking messages - H04B 7/0634: {Antenna weights or vector/matrix coefficients} - H04B 7/086: {using weights depending on external parameters, e.g. direction of arrival [DOA], predetermined weights or beamforming} - H04B 7/088: {using beam selection} - H04L 51/23: Reliability checks, e.g. acknowledgments or fault reporting - H04L 51/48: Message addressing, e.g. address format or anonymous messages, aliases - H04L 51/58: Message adaptation for wireless communication - H04W 4/14: Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD] - H04W 74/0808: using carrier sensing, e.g. carrier sense multiple access [CSMA] - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04B: TRANSMISSION - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A device, a network, and a method for wireless communication are provided. In an embodiment, the method, performed by a first communication node, includes generating at least one of a spatial-specific receiving pattern and a first spatial-specific processing pattern, receiving a waveform signal from one or more second nodes in accordance with the at least one of the spatial-specific receiving pattern or the first spatial-specific processing pattern, determining a second spatial-specific processing pattern and a channel status of a channel, wherein the channel status of the channel is according to the at least one of the spatial-specific receiving pattern and the second spatial-specific processing pattern and transmitting a signal along a transmission direction, wherein the transmission direction is in accordance with the at least one of the spatial-specific receiving pattern and the second spatial-specific processing pattern. ## Claims ### Claim 1 A method for wireless communications, the method comprising: sensing, by a communication node on a first sensing beam, a first channel on a first set of frequency-domain resources; determining, by the communication node, that the first channel is idle along a spatial direction of the first sensing beam; and performing, by the communication node, a first transmission over the first channel with a first transmit (TX) beam, wherein a spatial direction of the first TX beam is along the spatial direction of the first sensing beam. ### Claim 2 (depends on 1) The method of claim 1, wherein the first set of frequency-domain resources is one of a frequency band, a carrier, a plurality of carriers, a subband, a plurality of subbands, a subset of a set of frequency resources in the carrier, or a plurality of subsets of sets of frequency resources in one or more carriers. ### Claim 3 (depends on 1) The method of claim 1, wherein the determining that the first channel is idle along the spatial direction of the first sensing beam comprises: determining that a decision variable is less than a decision threshold, the decision threshold being generated based on a transmission power for the first transmission, and the decision variable being generated based on a receiver output on the first sensing beam. ### Claim 4 (depends on 3) The method of claim 3, wherein the decision threshold is generated based on at least one parameter of the first set of frequency-domain resources. ### Claim 5 (depends on 3) The method of claim 3, wherein the decision variable indicates a receive (RX) energy level on the first channel on the first sensing beam. ### Claim 6 (depends on 1) The method of claim 1, the first sensing beam being generated based on a first resource-specific RX pattern and a first resource-specific processing pattern, the first resource-specific RX pattern being associated with a set of receiver phase shift values applied to receiver analog phase shifters of the communication node, the first resource-specific processing pattern being a first receiver combining vector associated with a first combining vector applied in the digital domain or being a first receiver combining matrix associated with a first combining matrix applied in the digital domain. ### Claim 7 (depends on 1) The method of claim 1, the first TX beam being generated based on a first resource-specific TX pattern and a first resource-specific precoding pattern, the first resource-specific TX pattern being associated with a set of transmitter phase shift values applied to transmitter analog phase shifters, the first resource-specific precoding pattern being a first transmitter precoding vector associated with a first precoding vector applied in the digital domain or being a first transmitter precoding matrix associated with a first precoding matrix applied in the digital domain. ### Claim 8 (depends on 7) The method of claim 7, comprising: receiving, by the communication node from a network controller, a first resource-specific RX pattern indicating RX antennas, spatial RX parameters for the RX antennas, and the first set of frequency-domain resources for the sensing on the first sensing beam. ### Claim 9 (depends on 7) The method of claim 7, comprising: receiving, by the communication node from a network controller, the first resource-specific TX pattern, the first resource-specific TX pattern indicating TX antennas, spatial TX parameters for the TX antennas, and the first set of frequency-domain resources for the first transmission on the first TX beam. ### Claim 10 (depends on 1) The method of claim 1, the first channel on the first set of frequency-domain resources being one of a plurality of channels on a plurality of sets of frequency-domain resources, the first sensing beam being one of a plurality of sensing beams, each one of the plurality of sensing beams corresponding to a different one of the plurality of channels, each one of the plurality of channels being on a different one of the plurality of sets of frequency-domain resources. ### Claim 11 (depends on 1) The method of claim 1, the first channel on the first set of frequency-domain resources being one of a plurality of channels on the first set of frequency-domain resources, the first sensing beam being one of a plurality of sensing beams, each one of the plurality of sensing beams corresponding to a different one of the plurality of channels. ### Claim 12 (depends on 11) The method of claim 11, comprising: sensing, by the communication node, with the plurality of sensing beams, the first TX beam being one of a plurality of TX beams on which a plurality of transmissions are performed on the plurality of channels on the first set of frequency-domain resources, each one of the plurality of sensing beams corresponding to a different one of the plurality of TX beams. ### Claim 13 (depends on 12) The method of claim 12, the plurality of transmissions being a multiple-input multiple-output (MIMO) transmission with a transmission rank great than one or a multi-user (MU) MIMO transmission to more than one node. ### Claim 14 (depends on 12) The method of claim 12, a spatial direction of each one of the plurality of TX beams being along a spatial direction of a different one of a plurality of RX beams. ### Claim 15 A communication node comprising: at least one processor; and a non-transitory computer readable storage medium storing programming for execution by the at least one processor, the programming including instructions that cause the communication node to: sense, on a first sensing beam, a first channel on a first set of frequency-domain resources; determine that the first channel is idle along a spatial direction of the first sensing beam; and perform a first transmission over the first channel with a first transmit (TX) beam, a spatial direction of the first TX beam being along the spatial direction of the first sensing beam. ### Claim 16 (depends on 15) The communication node of claim 15, the first set of frequency-domain resources being one of a frequency band, a carrier, a plurality of carriers, a subband, a plurality of subbands, a subset of a set of frequency resources in the carrier, or a plurality of subsets of sets of frequency resources in one or more carriers. ### Claim 17 (depends on 15) The communication node of claim 15, the instructions further causing the communication node to: determine that a decision variable is less than a decision threshold, the decision threshold being generated based on a transmission power for the first transmission, the decision variable being generated based on a receiver output on the first sensing beam. ### Claim 18 (depends on 17) The communication node of claim 17, the decision threshold being generated in accordance with at least a parameter of the first set of frequency-domain resources. ### Claim 19 (depends on 17) The communication node of claim 17, the decision variable indicating a receive (RX) energy level on the first channel on the first sensing beam. ### Claim 20 (depends on 15) The communication node of claim 15, the first sensing beam being generated based on a first resource-specific RX pattern and a first resource-specific processing pattern, the first resource-specific RX pattern being associated with a set of receiver phase shift values applied to receiver analog phase shifters, the first resource-specific processing pattern being a first receiver combining vector associated with a first combining vector applied in the digital domain or being a first receiver combining matrix associated with a first combining matrix applied in the digital domain.