# US 2025/0097992 A1 · 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 2025/0097992 A1 - Document ID: US20250097992A1 - Status: Published application - Kind: A1 - Application number: 18/969,002 - Filed: 2024-12-04 - Published: 2025-03-20 - Earliest claimed: 2022-06-06 - Applicants: Huawei Technologies Co., Ltd. - Inventors: Chenwan LI; Jun CHEN; Lei CHEN; Bingzhao LI; Yiling WU; Hantao LI - Web page: https://patentgrep.com/patent/US20250097992A1 ## CPC - H04W 74/006: {in the downlink, i.e. towards the terminal} - H04W 74/0833: Random access procedures, e.g. with 4-step access - H04W 40/10: based on available power or energy - H02J 50/001: {Energy harvesting or scavenging} - H04B 5/77: for interrogation - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - H04B: TRANSMISSION ## Abstract A communication method and apparatus are provided. The method includes: A network device sends first signaling, indicating a terminal device to initiate random access on a first random access occasion; after receiving the first signaling, if the terminal device cannot complete the random access or data transmission after the random access, for example, stored energy of the terminal device is insufficient, the terminal device may send first indication information to the network device, indicating that a first terminal device cannot complete the random access or data transmission after the random access; and after receiving the first indication information, the network device may send second signaling, indicating the terminal device to initiate random access on a next random access occasion (namely, a second random access occasion) after the first random access occasion. ## Claims ### Claim 1 A communication method, wherein the method comprises: sending first signaling, wherein the first signaling indicates a terminal device to initiate random access on a first random access occasion; and receiving first indication information from a first terminal device, wherein the first indication information indicates that the first terminal device cannot complete the random access or data transmission after the random access. ### Claim 2 (depends on 1) The method according to claim 1, wherein the method further comprises: sending second signaling, wherein the second signaling indicates a second terminal device to initiate random access on a second random access occasion. ### Claim 3 (depends on 2) The method according to claim 2, wherein the second random access occasion is a next random access occasion after the first random access occasion. ### Claim 4 (depends on 1) The method according to claim 1, wherein the first indication information indicates that the first terminal device cannot complete the random access or data transmission after the random access comprises at least one of: the first indication information indicates that stored energy of the first terminal device is insufficient; the first indication information indicates that residual energy of the first terminal device is less than or equal to a first threshold; the first indication information indicates that signal received power of the first terminal device is less than or equal to a second threshold; or the first indication information indicates that a quantity of times of repeated data transmission of the first terminal device is greater than or equal to a third threshold. ### Claim 5 (depends on 2) The method according to claim 2, wherein before the sending second signaling, the method further comprises: receiving a random number for initiating the random access from the first terminal device. ### Claim 6 (depends on 5) The method according to claim 5, wherein the random number and the first indication information are carried in same signaling. ### Claim 7 (depends on 1) The method according to claim 1, wherein the method further comprises: determining, based on the first indication information, not to send response information to the first terminal device. ### Claim 8 A communication method, wherein the method comprises: receiving first signaling from a network device, wherein the first signaling indicates a terminal device to initiate random access on a first random access occasion; and sending first indication information to the network device, wherein the first indication information indicates that a first terminal device cannot complete the random access or data transmission after the random access. ### Claim 9 (depends on 8) The method according to claim 8, wherein the first indication information indicates that a first terminal device cannot complete the random access or data transmission after the random access comprises at least one of: the first indication information indicates that stored energy of the first terminal device is insufficient; the first indication information indicates that residual energy of the first terminal device is less than or equal to a first threshold; the first indication information indicates that signal received power of the first terminal device is less than or equal to a second threshold; or the first indication information indicates that a quantity of times of repeated data transmission of the first terminal device is greater than or equal to a third threshold. ### Claim 10 A communication apparatus, wherein the communication apparatus comprises at least one processor for executing programming instructions to enable the communication apparatus to perform operations comprising: sending first signaling, wherein the first signaling indicates a terminal device to initiate random access on a first random access occasion; and receiving first indication information from a first terminal device, wherein the first indication information indicates that the first terminal device cannot complete the random access or data transmission after the random access. ### Claim 11 (depends on 10) The communication apparatus according to claim 10, wherein the operations further comprising: sending second signaling, wherein the second signaling indicates a second terminal device to initiate random access on a second random access occasion. ### Claim 12 (depends on 11) The communication apparatus according to claim 11, wherein the second random access occasion is a next random access occasion after the first random access occasion. ### Claim 13 (depends on 10) The communication apparatus according to claim 10, wherein the first indication information indicates that the first terminal device cannot complete the random access or data transmission after the random access comprises at least one of: the first indication information indicates that stored energy of the first terminal device is insufficient; the first indication information indicates that residual energy of the first terminal device is less than or equal to a first threshold; the first indication information indicates that signal received power of the first terminal device is less than or equal to a second threshold; or the first indication information indicates that a quantity of times of repeated data transmission of the first terminal device is greater than or equal to a third threshold. ### Claim 14 (depends on 11) The communication apparatus according to claim 11, wherein the operations further comprising: receiving a random number from the first terminal device for initiating the random access. ### Claim 15 (depends on 14) The communication apparatus according to claim 14, wherein the random number and the first indication information are carried in same signaling. ### Claim 16 (depends on 10) The communication apparatus according to claim 10, wherein the operations further comprising: determining, based on the first indication information, not to send response information to the first terminal device.