# US 12,004,228 B2 · Information transmission method, terminal device, and network device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,004,228 B2 - Document ID: US12004228B2 - Status: Granted - Kind: B2 - Application number: 18/062,427 - Filed: 2022-12-06 - Published: 2023-03-30 - Granted: 2024-06-04 - Earliest claimed: 2018-05-11 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Yue Zhao; Zheng Yu - Web page: https://patentgrep.com/patent/US12004228B2 ## CPC - H04W 72/04: Wireless resource allocation - H04W 74/08: Non-scheduled access, e.g. ALOHA (hybrid access H04W74/02) - H04W 72/1268: of uplink data flows - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04W 74/0833: Random access procedures, e.g. with 4-step access - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract An information transmission method, a communications device, and a network device are provided. One example information transmission method includes: receiving a random access response, wherein the random access response comprises indication information and uplink grant information, the indication information indicates that a message 3 to be sent by a communications device is a first message 3 or a second message 3, the first message 3 is a message 3 that does not carry user data, and the second message 3 is a message 3 that carries the user data, and sending the message 3 based on the indication information, the first resource information, the second resource information, and the repetition quantity information. ## Claims ### Claim 1 An information sending method, comprising: receiving a random access response, wherein the random access response comprises indication information and uplink grant information, the indication information indicates that a message 3 to be sent by a communications device is a first message 3 or a second message 3, the first message 3 is a message 3 that does not carry user data, and the second message 3 is a message 3 that carries the user data, wherein the uplink grant information comprises first resource information, second resource information, and repetition quantity information, the first resource information indicates a resource used by the communications device to send the message 3 on a first narrowband in an uplink bandwidth, the repetition quantity information indicates a quantity of times that the communications device is to repeatedly send the message 3, and the second resource information indicates an index of a narrowband; and when the indication information indicates that the message 3 to be sent by the communications device is the first message 3, a quantity of bits of the second resource information is 2; or when the indication information indicates that the message 3 to be sent by the communications device is the second message 3, a quantity of bits of the second resource information is N, wherein N is a pre-specified integer, and N is equal to NNBindex, or N is equal to 3, or N is equal to 4, wherein NNBindex is a quantity of bits required to indicate all narrowbands in the uplink bandwidth; and sending the message 3 based on the indication information, the first resource information, the second resource information, and the repetition quantity information. ### Claim 2 (depends on 1) The method according to claim 1, wherein the communications device is at a coverage enhancement level 2 or a coverage enhancement level 3, or in coverage enhancement mode B, and the narrowband is the first narrowband. ### Claim 3 (depends on 1) The method according to claim 1, wherein the narrowband is used by the communications device to receive a physical downlink control channel, and the physical downlink control channel is used for scheduling of the message 3 or a message 4. ### Claim 4 (depends on 1) The method according to claim 1, wherein the method is performed by a terminal device. ### Claim 5 (depends on 1) The method according to claim 1, further comprising: determining a type of the message 3 by using the indication information; and determining a quantity of times to repeatedly send the message 3 by using the repetition quantity information. ### Claim 6 An information receiving method, comprising: sending a random access response, wherein the random access response comprises indication information and uplink grant information, the indication information indicates that a message 3 to be sent by a communications device is a first message 3 or a second message 3, the first message 3 is a message 3 that does not carry user data, and the second message 3 is a message 3 that carries the user data, wherein the uplink grant information comprises first resource information, second resource information, and repetition quantity information, the first resource information indicates a resource used by the communications device to send the message 3 on a first narrowband in an uplink bandwidth, the repetition quantity information indicates a quantity of times that the communications device is to repeatedly send the message 3, and the second resource information indicates an index of a narrowband; and when the indication information indicates that the message 3 to be sent by the communications device is the first message 3, a quantity of bits of the second resource information is 2; or when the indication information indicates that the message 3 to be sent by the communications device is the second message 3, a quantity of bits of the second resource information is N, wherein N is a pre-specified integer, and N is equal to NNBindex, or N is equal to 3, or N is equal to 4, wherein NNBindex is a quantity of bits required to indicate all narrowbands in the uplink bandwidth; and receiving the message 3. ### Claim 7 (depends on 6) The method according to claim 6, wherein the communications device is at a coverage enhancement level 2 or a coverage enhancement level 3, or in coverage enhancement mode B, and the narrowband is the first narrowband. ### Claim 8 (depends on 6) The method according to claim 6, wherein the narrowband is used to send a physical downlink control channel, and the physical downlink control channel is used for scheduling of the message 3 or a message 4. ### Claim 9 (depends on 6) The method according to claim 6, wherein the method is performed by a network device. ### Claim 10 An apparatus, comprising: at least one processor; and one or more memories coupled to the at least one processor and storing programming instructions that, when executed by the at least one processor, cause the apparatus to: receive a random access response, wherein the random access response comprises indication information and uplink grant information, the indication information indicates that a message 3 to be sent by a communications device is a first message 3 or a second message 3, the first message 3 is a message 3 that does not carry user data, and the second message 3 is a message 3 that carries the user data, wherein the uplink grant information comprises first resource information, second resource information, and repetition quantity information, the first resource information indicates a resource used by the communications device to send the message 3 on a first narrowband in an uplink bandwidth, the repetition quantity information indicates a quantity of times that the communications device is to repeatedly send the message 3, and the second resource information indicates an index of a narrowband; and when the indication information indicates that the message 3 to be sent by the communications device is the first message 3, a quantity of bits of the second resource information is 2; or when the indication information indicates that the message 3 to be sent by the communications device is the second message 3, a quantity of bits of the second resource information is N, wherein N is a pre-specified integer, and N is equal to NNBindex, or N is equal to 3, or N is equal to 4, wherein NNBindex is a quantity of bits required to indicate all narrowbands in the uplink bandwidth; and send the message 3 based on the indication information, the first resource information, the second resource information, and the repetition quantity information. ### Claim 11 (depends on 10) The apparatus according to claim 10, wherein the communications device is at a coverage enhancement level 2 or a coverage enhancement level 3, or in coverage enhancement mode B, and the narrowband is the first narrowband. ### Claim 12 (depends on 10) The apparatus according to claim 10, wherein the narrowband is used by the communications device to receive a physical downlink control channel, and the physical downlink control channel is used for scheduling of the message 3 or a message 4. ### Claim 13 (depends on 10) The apparatus according to claim 10, wherein the apparatus is a terminal device. ### Claim 14 (depends on 10) The apparatus according to claim 10, wherein the apparatus is a chip in a terminal device. ### Claim 15 (depends on 10) The apparatus according to claim 10, wherein the instructions, when executed by the at least one processor, cause the apparatus to: determine a type of the message 3 by using the indication information; and determine a quantity of times to repeatedly send the message 3 by using the repetition quantity information. ### Claim 16 An apparatus, comprising: at least one processor; and one or more memories coupled to the at least one processor and storing programming instructions that, when executed by the at least one processor, cause the apparatus to: send a random access response, wherein the random access response comprises indication information and uplink grant information, the indication information indicates that a message 3 to be sent by a communications device is a first message 3 or a second message 3, the first message 3 is a message 3 that does not carry user data, and the second message 3 is a message 3 that carries the user data, wherein the uplink grant information comprises first resource information, second resource information, and repetition quantity information, the first resource information indicates a resource used by the communications device to send the message 3 on a first narrowband in an uplink bandwidth, the repetition quantity information indicates a quantity of times that the communications device is to repeatedly send the message 3, and the second resource information indicates an index of a narrowband; and when the indication information indicates that the message 3 to be sent by the communications device is the first message 3, a quantity of bits of the second resource information is 2; or when the indication information indicates that the message 3 to be sent by the communications device is the second message 3, a quantity of bits of the second resource information is N, wherein N is a pre-specified integer, and N is equal to NNBindex, or N is equal to 3, or N is equal to 4, wherein NNBindex is a quantity of bits required to indicate all narrowbands in the uplink bandwidth; and receive the message 3. ### Claim 17 (depends on 16) The apparatus according to claim 16, wherein the communications device is at a coverage enhancement level 2 or a coverage enhancement level 3, or in coverage enhancement mode B, and the narrowband is the first narrowband. ### Claim 18 (depends on 16) The apparatus according to claim 16, wherein the narrowband is used by the communications device to receive a physical downlink control channel, and the physical downlink control channel is used for scheduling of the message 3 or a message 4. ### Claim 19 (depends on 16) The apparatus according to claim 16, wherein the apparatus is a network device. ### Claim 20 (depends on 16) The apparatus according to claim 16, wherein the apparatus is a chip in a network device.