# US 12,010,735 B2 · Rach-report indicating rat or node in a dual-connectivity / multi-rat configuration > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,010,735 B2 - Document ID: US12010735B2 - Status: Granted - Kind: B2 - Application number: 17/623,653 - Filed: 2020-07-08 - Published: 2022-09-15 - Granted: 2024-06-11 - Earliest claimed: 2019-07-10 - Assignees: Telefonaktiebolaget LM Ericsson (publ) - Applicants: Telefonaktiebolaget LM Ericsson (publ) - Inventors: Icaro L. J. Da Silva; Angelo Centonza; Ali Parichehrehteroujeni - Web page: https://patentgrep.com/patent/US12010735B2 ## CPC - H04W 24/02: Arrangements for optimising operational condition - H04W 74/0841: {with collision treatment} - H04W 56/001: {Synchronization between nodes} - H04W 74/0833: Random access procedures, e.g. with 4-step access - H04W 74/0866: {using a dedicated channel for access} - H04W 76/16: Involving different core network technologies, e.g. a packet-switched [PS] bearer in combination with a circuit-switched [CS] bearer - H04W 36/0077: {of access information of target access point} - H04W 74/0838: using contention-free random access [CFRA] - H04W 80/02: Data link layer protocols - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Embodiments herein disclose e.g. a method performed by a UE for handling access to one or more radio network nodes: The UE initiates a random access, RA, procedure associated to a cell and according to a first configuration for a second radio access technology, RAT, while the UE is already connected to at least one cell of a first RAT. The UE logs random access related information of the random access procedure while the UE already has a RACH report stored for the first RAT, and transmits a RACH report based on the logged random access information or the stored RACH report, upon request from a radio network node when the UE has more than one medium access control, MAC, entity. The UE further signals to the radio network node, an indication that highlights for what RAT or radio network node the transmitted RACH report was constructed. ## Claims ### Claim 1 A method performed by a user equipment, UE, for handling access to one or more radio network nodes, the method comprising: initiating a random access, RA, procedure associated to a cell and according to a first configuration for a second radio access technology, RAT, while the UE is already connected to at least one cell of a first RAT; logging random access related information of the random access procedure while the UE already has a random access channel, RACH, report stored for the first RAT; transmitting a RACH report based on the logged random access information or the stored RACH report, upon request from a radio network node when the UE has more than one medium access control, MAC, entity; and signalling to the radio network node, an indication that highlights for what RAT or radio network node the transmitted RACH report was constructed. ### Claim 2 (depends on 1) The method according to claim 1, wherein the UE is connected to a RAT different from the first RAT and for which the RACH report is stored, the UE will not upload the RACH report for the different RAT, but will wait until the UE is connected to the first RAT, and then transmit a flag indicating presence of the RACH report for the different RAT and then receive a request for the RACH report for the different RAT. ### Claim 3 (depends on 1) The method according to claim 1, wherein the transmitted RACH report is related to a latest successfully executed RA procedure in a cell. ### Claim 4 (depends on 1) The method according to claim 1, further comprising receiving the request from the radio network node comprising an indication indicating which RACH report to transmit. ### Claim 5 (depends on 1) A non-transitory computer-readable storage medium, having stored thereon a computer program product comprising instructions which, when executed on at least one processor, cause the at least one processor to carry out the method according to claim 1, as performed by the UE or the radio network node, respectively. ### Claim 6 A method performed by a radio network node for handling access of a user equipment, UE, the method comprising: transmitting to the UE, a request to transmit a random access channel, RACH, report when the UE has more than one medium access control, MAC, entity; and receiving from the UE, a RACH report when the UE has more than one MAC entity, and an indication that highlights for what radio access technology, RAT, or radio network node the RACH report was constructed. ### Claim 7 (depends on 6) The method according to claim 6, comprising receiving a flag indicating presence of a stored RACH report at the UE. ### Claim 8 (depends on 6) The method according to claim 6, wherein the request to the UE comprises an indication indicating which RACH report to transmit. ### Claim 9 A user equipment, UE, for handling access to one or more radio network nodes, wherein the UE is configured to: initiate a random access, RA, procedure associated to a cell and according to a first configuration for a second radio access technology, RAT, while the UE is already connected to at least one cell of a first RAT; log random access related information of the RA procedure while the UE already has a random access channel, RACH, report stored for the first RAT; upon request from a radio network node when the UE has more than one MAC entity, transmit a RACH report based on the logged random access information or the stored RACH report; and signal to the radio network node, an indication that highlights for what RAT or radio network node the RACH report was constructed. ### Claim 10 (depends on 9) The UE according to claim 9, wherein the UE is configured upon being connected to a RAT different from the first RAT and for which the RACH report is stored, the UE will not upload the RACH report for the different RAT, but will wait until the UE is connected to the first RAT, and then transmit a flag indicating presence of the RACH report for the different RAT and then receive a request for the RACH report for the different RAT. ### Claim 11 (depends on 9) The UE according to claim 9, wherein the transmitted RACH report is related to a latest successfully executed RA procedure in a cell. ### Claim 12 (depends on 9) The UE according to claim 9, wherein the UE is further configured to receive the request from the radio network node comprising an indication indicating which RACH report to transmit. ### Claim 13 A radio network node for handling access of a user equipment, UE, wherein the radio network node is configured to: transmit to the UE, a request to transmit a random access channel, RACH, report when the UE has more than one medium access control, MAC, entity; and receive a RACH report from the UE when the UE has more than one MAC entity, and an indication that highlights for what radio access technology, RAT, or radio network node the RACH report was constructed. ### Claim 14 (depends on 13) The radio network node according to claim 13, wherein the radio network node is further configured to receive a flag indicating presence of a RACH report stored at the UE. ### Claim 15 (depends on 13) The radio network node according to claim 13, wherein the request comprises an indication indicating which RACH report to transmit.