# US 11,122,630 B2 · Information sending method and apparatus and information receiving 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 11,122,630 B2 - Document ID: US11122630B2 - Status: Granted - Kind: B2 - Application number: 16/697,872 - Filed: 2019-11-27 - Published: 2020-03-26 - Granted: 2021-09-14 - Earliest claimed: 2017-08-11 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Xinqian Xie; Zhiheng Guo - Web page: https://patentgrep.com/patent/US11122630B2 ## CPC - H04W 76/11: Allocation or use of connection identifiers - H04W 88/02: Terminal devices - H04W 48/12: using downlink control channel - H04W 48/16: Discovering, processing access restriction or access information - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04W 72/1215: {for collaboration of different radio technologies} - H04W 74/00: Wireless channel access - H04W 74/006: {in the downlink, i.e. towards the terminal} - H04W 74/02: Hybrid access - H04W 74/08: Non-scheduled access, e.g. ALOHA (hybrid access H04W74/02) - H04W 74/0833: Random access procedures, e.g. with 4-step access - H04W 88/08: Access point devices - H04L 5/14: Two-way operation using the same type of signal, i.e. duplex - H04L 5/22: using time-division multiplexing - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract Embodiments of this application provide an information sending method and an information receiving method. A network device receives a random access signal of a terminal device from the terminal device on a random access resource, where the random access resource is on a first uplink carrier or a second uplink carrier, and the first uplink carrier and the second uplink carrier are corresponding to a same downlink carrier; the network device determines a random access identifier corresponding to the random access resource according to a time-frequency resource sequence number of the random access resource and a carrier identifier of a carrier on which the random access resource is and the network device generates a random access response based on the determined random access identifier, and sends the random access response to the terminal device via the downlink carrier. ## Claims ### Claim 1 A method, comprising: sending, by a terminal device, a random access signal to a network device on a random access resource, wherein the random access resource is on a first uplink carrier or a second uplink carrier, wherein the first uplink carrier and the second uplink carrier both correspond to a downlink carrier, wherein the first uplink carrier is a supplementary uplink (SUL) carrier, and wherein the second uplink carrier is a time division duplex (TDD) uplink carrier; determining, by the terminal device, in response to the random access resource being on the second uplink carrier, a random access identifier corresponding to the random access resource according to a time-frequency resource sequence number of the random access resource and a carrier identifier of the second uplink carrier, wherein a relationship between the random access identifier, the time-frequency resource sequence number, and the carrier identifier satisfies: S=1+t_id+10*(n−1)+60, wherein S is the random access identifier, t_id is a sequence number of a first time unit occupied by the random access resource, and n is a carrier sequence number of the second uplink carrier; and receiving, by the terminal device on the downlink carrier, a random access response from the network device according to the random access identifier. ### Claim 2 (depends on 1) The method according to claim 1, wherein a frequency band on which the first uplink carrier is located is different from a frequency band on which the second uplink carrier is located. ### Claim 3 (depends on 1) The method according to claim 1, wherein the random access identifier is a random access-radio network temporary identifier (RA-RNTI). ### Claim 4 (depends on 1) The method according to claim 1, wherein the method further comprises: determining, by the terminal device, in response to the random access resource being on the first uplink carrier, a random access identifier corresponding to the random access resource, wherein the random access identifier meets S=1+t_id+n1*f_id, wherein S is the random access identifier, t_id is a sequence number of a first time unit occupied by the random access resource, f_id is a frequency domain resource sequence number of the random access resource in the first time unit, and n1 is a positive integer. ### Claim 5 (depends on 1) The method according to claim 1, wherein the random access resource is independently numbered in frequency domain for different uplink carriers. ### Claim 6 A method, comprising: receiving, by a network device, a random access signal from a terminal device on a random access resource, wherein the random access resource is on a first uplink carrier or a second uplink carrier, wherein the first uplink carrier and the second uplink carrier both correspond to a downlink carrier, wherein the first uplink carrier is a supplementary uplink (SUL) carrier, and wherein the second uplink carrier is a time division duplex (TDD) uplink carrier; determining, by the network device, in response to the random access resource being on the second uplink carrier, a random access identifier corresponding to the random access resource according to a time-frequency resource sequence number of the random access resource and a carrier identifier of the second uplink carrier, wherein a relationship between the random access identifier, the time-frequency resource sequence number, and the carrier identifier satisfies: S=1+t_id+10*(n−1)+60, wherein S is the random access identifier, t_id is a sequence number of a first time unit occupied by the random access resource, and n is a carrier sequence number of the second uplink carrier; and sending, by the network device on the downlink carrier, a random access response to the terminal device according to the random access identifier. ### Claim 7 (depends on 6) The method according to claim 6, wherein a frequency band on which the first uplink carrier is located is different from a frequency band on which the second uplink carrier is located. ### Claim 8 (depends on 6) The method according to claim 6, wherein the random access identifier is a random access-radio network temporary identifier (RA-RNTI). ### Claim 9 (depends on 6) The method according to claim 6, wherein the method further comprises: determining, by the network device, in response to the random access resource being on the first uplink carrier, a random access identifier corresponding to the random access resource, wherein the random access identifier meets S=1+t_id+n1*f_id, wherein S is the random access identifier, t_id is a sequence number of a first time unit occupied by the random access resource, f_id is a frequency domain resource sequence number of the random access resource in the first time unit, and n1 is a positive integer. ### Claim 10 (depends on 6) The method according to claim 6, wherein the random access resource is independently numbered in frequency domain for different uplink carriers. ### Claim 11 An apparatus, comprising: at least one processor; and a memory coupled to the at least one processor, the at least one processor being configured to: send a random access signal to a network device on a random access resource, wherein the random access resource is on a first uplink carrier or a second uplink carrier, wherein the first uplink carrier and the second uplink carrier both correspond to a downlink carrier, wherein the first uplink carrier is a supplementary uplink (SUL) carrier, and wherein the second uplink carrier is a time division duplex (TDD) uplink carrier; determine, in response to the random access resource being on the second uplink carrier, a random access identifier corresponding to the random access resource according to a time-frequency resource sequence number of the random access resource and a carrier identifier of the second uplink carrier, wherein a relationship between the random access identifier, the time-frequency resource sequence number, wherein the carrier identifier satisfies: S=1+t_id+10*(n−1)+60, wherein S is the random access identifier, wherein t_id is a sequence number of a first time unit occupied by the random access resource, and wherein n is a carrier sequence number of the second uplink carrier; and receive, on the downlink carrier, a random access response from the network device according to the random access identifier. ### Claim 12 (depends on 11) The apparatus according to claim 11, wherein a frequency band on which the first uplink carrier is located is different from a frequency band on which the second uplink carrier is located. ### Claim 13 (depends on 11) The apparatus according to claim 11, wherein the random access identifier is a random access-radio network temporary identifier (RA-RNTI). ### Claim 14 (depends on 11) The apparatus according to claim 11, wherein the at least one processor being further configured to: when the random access resource is on the first uplink carrier, determine a random access identifier corresponding to the random access resource, wherein the random access identifier meets S=1+t_id+n1*f_id, wherein S is the random access identifier, t_id is a sequence number of a first time unit occupied by the random access resource, f_id is a frequency domain resource sequence number of the random access resource in the first time unit, and n1 is a positive integer. ### Claim 15 (depends on 11) The apparatus according to claim 11, wherein the random access resource is independently numbered in frequency domain for different uplink carriers. ### Claim 16 An apparatus, comprising: at least one processor; and a memory coupled to the at least one processor, the at least one processor being configured to: receive a random access signal from a terminal device on a random access resource, wherein the random access resource is on a first uplink carrier or a second uplink carrier, wherein the first uplink carrier and the second uplink carrier both correspond to a downlink carrier, wherein the first uplink carrier is a supplementary uplink (SUL) carrier, and wherein the second uplink carrier is a time division duplex (TDD) uplink carrier; determine, in response to the random access resource being on the second uplink carrier, a random access identifier corresponding to the random access resource according to a time-frequency resource sequence number of the random access resource and a carrier identifier of the second uplink carrier, wherein a relationship between the random access identifier, the time-frequency resource sequence number, and the carrier identifier satisfies: S=1+t_id+10*(n−1)+60, wherein S is the random access identifier, t_id is a sequence number of a first time unit occupied by the random access resource, and n is a carrier sequence number of the second uplink carrier; and send, on the downlink carrier, a random access response to the terminal device according to the random access identifier. ### Claim 17 (depends on 16) The apparatus according to claim 16, wherein a frequency band on which the first uplink carrier is located is different from a frequency band on which the second uplink carrier is located. ### Claim 18 (depends on 16) The apparatus according to claim 16, wherein the random access identifier is a random access-radio network temporary identifier (RA-RNTI). ### Claim 19 (depends on 16) The apparatus according to claim 16, wherein the at least one processor is further configured to: determine, in response to the random access resource being on the first uplink carrier, a random access identifier corresponding to the random access resource, wherein the random access identifier meets S=1+t_id+n1*f_id, wherein S is the random access identifier, t_id is a sequence number of a first time unit occupied by the random access resource, f_id is a frequency domain resource sequence number of the random access resource in the first time unit, and n1 is a positive integer. ### Claim 20 (depends on 16) The apparatus according to claim 16, wherein the random access resource is independently numbered in frequency domain for different uplink carriers.