# US 11,122,560 B2 · Uplink channel transmission method and apparatus, and downlink channel transmission 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 11,122,560 B2 - Document ID: US11122560B2 - Status: Granted - Kind: B2 - Application number: 16/672,538 - Filed: 2019-11-04 - Published: 2020-02-27 - Granted: 2021-09-14 - Earliest claimed: 2017-05-04 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Zuomin Wu; Lei Guan; Sha Ma - Web page: https://patentgrep.com/patent/US11122560B2 ## CPC - H04W 72/044: based on the type of the allocated resource - H04W 74/0808: using carrier sensing, e.g. carrier sense multiple access [CSMA] - H04W 16/14: Spectrum sharing arrangements {between different networks} - H04W 72/1263: Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows - H04W 72/20: Control channels or signalling for resource management - H04W 72/1268: of uplink data flows - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Embodiments provide a uplink channel transmission method. Scheduling information from the network device can be received by a terminal device. The scheduling information indicates uplink time-frequency resources carrying at least one uplink channel. a first uplink channel is carried on a first uplink time-frequency resource, and the first uplink time-frequency resource occupies M subbands in the N subbands in frequency domain, M≥2. The M subbands can be detected by the terminal device to determine, from the first uplink time-frequency resource, a second uplink time-frequency resource usable by the terminal device. The second uplink time-frequency resource occupies K subbands in the M subbands in frequency domain, and M>K≥1. The first uplink channel can be sent by the terminal device by using the second uplink time-frequency resource. ## Claims ### Claim 1 An uplink channel transmission method, wherein the method is applied to a communications system comprising a network device and a terminal device, wherein a system frequency domain resource used by the communications system is divided into N subbands and N≥2, the system frequency domain resource being a frequency domain resource used based on a contention mechanism, and the method comprises: receiving, by the terminal device, scheduling information from the network device, wherein the scheduling information indicates uplink time-frequency resources carrying at least one uplink channel, the uplink time-frequency resources being allocated by the network device to the terminal device, wherein a first uplink time-frequency resource in the uplink time-frequency resources carries a first uplink channel in the at least one uplink channel, and the first uplink time-frequency resource occupies M subbands in the N subbands in frequency domain, N≥M≥2; detecting, by the terminal device, the M subbands, to determine, from the first uplink time-frequency resource, a second uplink time-frequency resource configured to the terminal device, wherein the second uplink time-frequency resource occupies K subbands in the M subbands in frequency domain, M>K≥1; and sending, by the terminal device, the first uplink channel by using the second uplink time-frequency resource. ### Claim 2 (depends on 1) The method according to claim 1, wherein the method further comprises: sending, by the terminal device, first indication information to the network device, wherein the first indication information indicates the K subbands occupied by the second uplink time-frequency resource. ### Claim 3 (depends on 2) The method according to claim 2, wherein sending, by the terminal device, the first indication information to the network device comprises: determining, by the terminal device, a third uplink time-frequency resource from the second uplink time-frequency resource; and sending, by the terminal device, the first indication information by using the third uplink time-frequency resource, wherein at least one of a size value of the third uplink time-frequency resource or a location of the third uplink time-frequency resource in the second uplink time-frequency resource is specified by the communications system; at least one of a size value of the third uplink time-frequency resource or a location of the third uplink time-frequency resource in the second uplink time-frequency resource is pre-indicated by the network device; or at least one of a size value of the third uplink time-frequency resource or a location of the third uplink time-frequency resource in the second uplink time-frequency resource is indicated by the scheduling information. ### Claim 4 (depends on 1) The method according to claim 1, wherein sending, by the terminal device, the first uplink channel by using the second uplink time-frequency resource comprises: determining, by the terminal device, a first uplink transport block size (TBS) based on a size of the first uplink time-frequency resource; and sending, by the terminal device, the first uplink channel to the network device based on the first uplink TBS by using the second uplink time-frequency resource. ### Claim 5 (depends on 1) The method according to claim 1, wherein sending, by the terminal device, the first uplink channel by using the second uplink time-frequency resource comprises: determining, by the terminal device, a second uplink TBS based on a size of the second uplink time-frequency resource; and sending, by the terminal device, the first uplink channel to the network device based on the second uplink TBS by using the second uplink time-frequency resource. ### Claim 6 An uplink channel transmission method, wherein the method is applied to a communications system comprising a network device and a terminal device, wherein a system frequency domain resource used by the communications system is divided into N subbands and N≥2, the system frequency domain resource being a frequency domain resource used based on a contention mechanism, and the method comprises: sending, by the network device, scheduling information to the terminal device, wherein the scheduling information indicates uplink time-frequency resources carrying at least one uplink channel, the scheduling information being allocated by the network device to the terminal device, wherein a first uplink time-frequency resource in the uplink time-frequency resources carries a first uplink channel in the at least one uplink channel, and the first uplink time-frequency resource occupies M subbands in the N subbands in frequency domain, wherein N≥M≥2; and receiving, by the network device, the first uplink channel from the terminal device by using a second uplink time-frequency resource, wherein the second uplink time-frequency resource occupies K subbands in the M subbands in frequency domain, wherein M>K≥1. ### Claim 7 (depends on 6) The method according to claim 6, wherein the method further comprises: receiving, by the network device, first indication information from the terminal device, wherein the first indication information indicates the K subbands occupied by the second uplink time-frequency resource; and determining, by the network device, the second uplink time-frequency resource based on the first indication information. ### Claim 8 (depends on 7) The method according to claim 7, wherein the first indication information is carried on a third uplink time-frequency resource in the second uplink time-frequency resource, wherein at least one of a size value of the third uplink time-frequency resource or a location of the third uplink time-frequency resource in the second uplink time-frequency resource is specified by the communications system; at least one of a size value of the third uplink time-frequency resource or a location of the third uplink time-frequency resource in the second uplink time-frequency resource is pre-indicated by the network device; or at least one of a size value of the third uplink time-frequency resource or a location of the third uplink time-frequency resource in the second uplink time-frequency resource is indicated by the scheduling information. ### Claim 9 (depends on 6) The method according to claim 6, wherein the method further comprises: determining, by the network device, the second uplink time-frequency resource based on whether each of the M subbands carries a reference signal. ### Claim 10 (depends on 6) The method according to claim 6, wherein the receiving, by the network device, the first uplink channel from the terminal device by using a second uplink time-frequency resource comprises: determining, by the network device, a first uplink transport block size (TBS) based on a size of the first uplink time-frequency resource; and receiving, by the network device, the first uplink channel from the terminal device based on the first uplink TBS by using the second uplink time-frequency resource. ### Claim 11 (depends on 6) The method according to claim 6, wherein receiving, by the network device, the first uplink channel from the terminal device by using the second uplink time-frequency resource comprises: determining, by the network device, a second uplink TBS based on a size of the second uplink time-frequency resource; and receiving, by the network device, the first uplink channel from the terminal device based on the second uplink TBS by using the second uplink time-frequency resource. ### Claim 12 An uplink channel transmission apparatus, wherein the apparatus is configured in a communications system comprising a network device and the apparatus, a system frequency domain resource used by the communications system is divided into N subbands and N≥2, the system frequency domain resource being a frequency domain resource used based on a contention mechanism, and the apparatus comprises: a transceiver, configured to receive scheduling information from the network device, wherein the scheduling information indicates uplink time-frequency resources carrying at least one uplink channel, uplink time-frequency resources being allocated by the network device to the apparatus, wherein a first uplink time-frequency resource in the uplink time-frequency resources is carries a first uplink channel in the at least one uplink channel, and the first uplink time-frequency resource occupies M subbands in the N subbands in frequency domain, wherein N≥M≥2; a processor, configured to detect the M subbands, to determine, from the first uplink time-frequency resource, a second uplink time-frequency resource configured to the apparatus, wherein the second uplink time-frequency resource occupies K subbands in the M subbands in frequency domain, M>K≥1; and the transceiver is further configured to send the first uplink channel by using the second uplink time-frequency resource. ### Claim 13 (depends on 12) The apparatus according to claim 12, wherein the transceiver is further configured to send first indication information to the network device, wherein the first indication information indicates the K subbands occupied by the second uplink time-frequency resource. ### Claim 14 (depends on 13) The apparatus according to claim 13, wherein the processor is further configured to determine a third uplink time-frequency resource from the second uplink time-frequency resource; and the transceiver is configured to send the first indication information by using the third uplink time-frequency resource, wherein at least one of a size value of the third uplink time-frequency resource or a location of the third uplink time-frequency resource in the second uplink time-frequency resource is specified by the communications system. ### Claim 15 (depends on 13) The apparatus according to claim 13, wherein the processor is further configured to determine a third uplink time-frequency resource from the second uplink time-frequency resource; and the transceiver is configured to send the first indication information by using the third uplink time-frequency resource, wherein at least one of a size value of the third uplink time-frequency resource or a location of the third uplink time-frequency resource in the second uplink time-frequency resource is pre-indicated by the network device. ### Claim 16 (depends on 13) The apparatus according to claim 13, wherein the processor is further configured to determine a third uplink time-frequency resource from the second uplink time-frequency resource; and the transceiver is configured to send the first indication information by using the third uplink time-frequency resource, wherein at least one of a size value of the third uplink time-frequency resource or a location of the third uplink time-frequency resource in the second uplink time-frequency resource is indicated by the scheduling information. ### Claim 17 (depends on 12) The apparatus according to claim 12, wherein the processor is further configured to determine a first uplink transport block size (TB S) based on a size of the first uplink time-frequency resource; and the transceiver is configured to send the first uplink channel to the network device based on the first uplink TBS by using the second uplink time-frequency resource. ### Claim 18 (depends on 13) The apparatus according to claim 13, wherein the processor is further configured to determine a first uplink transport block size (TBS) based on a size of the first uplink time-frequency resource; and the transceiver is configured to send the first uplink channel to the network device based on the first uplink TBS by using the second uplink time-frequency resource. ### Claim 19 (depends on 14) The apparatus according to claim 14, wherein the processor is further configured to determine a first uplink transport block size (TBS) based on a size of the first uplink time-frequency resource; and the transceiver is configured to send the first uplink channel to the network device based on the first uplink TBS by using the second uplink time-frequency resource. ### Claim 20 (depends on 15) The apparatus according to claim 15, wherein the processor is further configured to determine a first uplink transport block size (TBS) based on a size of the first uplink time-frequency resource; and the transceiver is configured to send the first uplink channel to the network device based on the first uplink TBS by using the second uplink time-frequency resource.