# US 10,772,134 B2 · Method of transmitting and receiving signal and apparatus supporting the same in a wireless communication system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,772,134 B2 - Document ID: US10772134B2 - Status: Granted - Kind: B2 - Application number: 16/690,746 - Filed: 2019-11-21 - Published: 2020-07-16 - Granted: 2020-09-08 - Earliest claimed: 2019-01-11 - Assignees: LG Electronics Inc. - Applicants: LG Electronics Inc. - Inventors: Youngtae Kim; Hyunsoo Ko; Hyangsun You; Sukhyon Yoon - Web page: https://patentgrep.com/patent/US10772134B2 ## CPC - H04W 28/16: Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service] - H04W 74/0833: Random access procedures, e.g. with 4-step access - H04W 74/08: Non-scheduled access, e.g. ALOHA (hybrid access H04W74/02) - H04W 74/0838: using contention-free random access [CFRA] - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract The present disclosure relates to a wireless communication system. Particularly, a communication method and an apparatus for the same are provided, in which configuration information related to random access of a user equipment (UE) is received from an upper node, first time resource information related to random access of the relay node is received from the upper node, and random access is performed to the upper node based on the configuration information and the first time resource information. The configuration information includes second time resource information including a periodicity of the random access of the UE and a plurality of random access occasions within the periodicity, and the first time resource information and the second time resource information do not overlap with each other in time resources. ## Claims ### Claim 1 A method for communicating by an integrated access and backhaul (IAB) node in a wireless communication system, the method comprising: receiving, from an upper node, configuration information including a periodicity of a random access of a user equipment (UE); receiving, from the upper node, time resource information related to the random access of the IAB node; and performing the random access for the upper node based on the periodicity and the time resource information, wherein the time resource information indicates a weight for the random access of the IAB node, and wherein the weight satisfies 2{circumflex over ( )}n, and n is an integer value greater than or equal to 0. ### Claim 2 (depends on 1) The method of claim 1, wherein the random access for the upper node is performed based on a multiplication of the periodicity and the weight. ### Claim 3 (depends on 1) The method of claim 1, wherein the configuration information includes a plurality of subframe numbers for a plurality of random access occasions within the periodicity, and wherein the time resource information includes one subframe number that does not overlap with the plurality of subframe numbers. ### Claim 4 (depends on 1) The method of claim 1, wherein the configuration information is received in remaining minimum system information (RMSI), and wherein the RMSI includes a bit field for the time resource information. ### Claim 5 (depends on 1) The method of claim 1, wherein the upper node is a donor base station or a parent node of the IAB node. ### Claim 6 An integrated access and backhaul (IAB) node in a wireless communication system, the IAB node comprising: a memory; and a processor that: receives, from an upper node, configuration information including a periodicity of a random access of a user equipment (UE); receives, from the upper node, time resource information related to the random access of the IAB node; and perform the random access for the upper node based on the periodicity and the time resource information, wherein the time resource information indicates a weight for the random access of the IAB node, and wherein the weight satisfies 2{circumflex over ( )}n, and n is an integer value greater than or equal to 0. ### Claim 7 (depends on 6) The IAB node of claim 6, wherein the random access for the upper node is performed based on a multiplication of the periodicity and the weight. ### Claim 8 (depends on 6) The IAB node of claim 6, wherein the configuration information includes a plurality of subframe numbers for a plurality of random access occasions within the periodicity, and wherein the time resource information includes one subframe number that does not overlap with the plurality of subframe numbers. ### Claim 9 (depends on 6) The IAB node of claim 6, wherein the configuration information is received in remaining minimum system information (RMSI), and wherein the RMSI includes a bit field for the time resource information. ### Claim 10 (depends on 6) The IAB node of claim 6, wherein the upper node is a donor base station or a parent node of the IAB node. ### Claim 11 (depends on 6) The IAB node of claim 6, wherein the IAB node includes an autonomous driving vehicle communicable with at least one other autonomous driving vehicle than the upper node and the UE. ### Claim 12 (depends on 1) The method of claim 1, wherein the weight is indicated by one of a value of 1, 2, 4, 8, 16 32, and 64. ### Claim 13 (depends on 6) The IAB node of claim 6, wherein the weight is indicated by one of a value of 1, 2, 4, 8, 16 32, and 64.