# US 2020/0288368 A1 · Method and apparatus for identifying user device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2020/0288368 A1 - Document ID: US20200288368A1 - Status: Published application - Kind: A1 - Application number: 16/766,181 - Filed: 2017-11-29 - Published: 2020-09-10 - Earliest claimed: 2017-11-29 - Assignees: Beijing Xiaomi Mobile Software Co., Ltd. - Applicants: Beijing Xiaomi Mobile Software Co., Ltd. - Inventors: Wei HONG - Web page: https://patentgrep.com/patent/US20200288368A1 ## CPC - H04W 36/14: Reselecting a network or an air interface - H04W 64/006: {with additional information processing, e.g. for direction or speed determination} - H04W 36/324: {by mobility data, e.g. speed data} - H04W 52/0229: {where the received signal is a wanted signal} - H04W 84/005: {Moving wireless networks} - Y02D 30/70: in wireless communication networks - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE ## Abstract A method for identifying a user device includes: receiving uplink messages sent at least twice by the same user device; on the basis of the uplink messages sent at least twice, determining remote radio unit (RRU) positional information of each RRU that receives an uplink message; judging whether a proportion of a number of different pieces of the RRU positional information among at least two pieces of the RRU positional information to a total number of the at least two pieces of the RRU positional information reaches a preset proportion threshold; when the ratio does not reach the preset ratio threshold, determining that the user device is a common user device; and when the ratio reaches the preset ratio threshold, determining that the user device is a fast-moving user device. ## Claims ### Claim 1 A method for identifying user equipment (UE), applied to a base station for a high-speed-railway dedicated network, the method comprising: receiving uplink messages transmitted at two or more different times by a same UE; determining, according to the uplink messages transmitted at two or more different times, Remote Radio Unit (RRU) positional information of each RRU that receives an uplink message; judging whether a proportion of a number of different pieces of the RRU positional information among at least two pieces of the RRU positional information to a total number of the at least two pieces of the RRU positional information reaches a preset proportion threshold; determining the UE as a common UE in response to the proportion not reaching the preset proportion threshold; and determining the UE as a fast-moving UE in response to the proportion reaching the preset proportion threshold. ### Claim 2 (depends on 1) The method according to claim 1, wherein the UE is in an idle state, and the receiving the uplink messages transmitted at two or more different times by the same UE comprises: receiving uplink wake-up signals transmitted at two or more different times by the same UE. ### Claim 3 (depends on 2) The method according to claim 2, further comprising: before receiving the uplink messages transmitted at two or more different times by the same UE, transmitting a first broadcast message to the UE for instructing the UE to transmit an uplink wake-up signal. ### Claim 4 (depends on 3) The method according to claim 3, wherein the first broadcast message comprises at least one of a preset interval length or a preset cycle length, wherein the interval length is configured to indicate a time interval after expiration of which the UE transmits the uplink wake-up signal, and the cycle length is configured to indicate a cycle period according to which the UE transmits the uplink wake-up signal periodically. ### Claim 5 (depends on 3) The method according to claim 3, wherein the first broadcast message comprises a format of the uplink wake-up signal and a resource position for transmitting the uplink wake-up signal. ### Claim 6 (depends on 2) The method according to claim 2, further comprising: transmitting a second broadcast message to the UE for instructing the UE to stop transmitting the uplink wake-up signal. ### Claim 7 (depends on 1) The method according to claim 1, wherein the UE is in an activated state, and the receiving the uplink messages transmitted at two or more different times by the same UE comprises: receiving uplink data transmitted at two or more different times by the same UE. ### Claim 8 (depends on 1) The method according to claim 1, further comprising: in response to determining that the UE is common UE, handing over the common UE to a public Long Term Evolution (LTE) network. ### Claim 9 A base station for a high-speed-railway dedicated network, comprising: a processor; and a memory storing instructions executable by the processor, wherein the processor is configured to: receive uplink messages transmitted at two or more different times by a same user equipment (UE); determine, according to the uplink messages transmitted at two or more different times, Remote Radio Unit (RRU) positional information of each RRU that receives an uplink message; judge whether a proportion of a number of different pieces of the RRU positional information among at least two pieces of the RRU positional information to a total number of the at least two pieces of the RRU positional information reaches a preset proportion threshold; determine the UE as a common UE in response to the proportion not reaching the preset proportion threshold; and determine the UE as a fast-moving UE in response to the proportion reaching the preset proportion threshold. ### Claim 10 (depends on 9) The base station according to claim 9, wherein the UE is in an idle state, and the processor is further configured to: receive uplink wake-up signals transmitted at two or more different times by the same UE. ### Claim 11 (depends on 10) The base station according to claim 10, wherein the processor is further configured to: before receiving the uplink messages transmitted at two or more different times by the same UE, transmit a first broadcast message to the UE for instructing the UE to transmit an uplink wake-up signal. ### Claim 12 (depends on 11) The base station according to claim 11, wherein the first broadcast message comprises at least one of a preset interval length or a preset cycle length, wherein the interval length is configured to indicate a time interval after expiration of which the UE transmits the uplink wake-up signal, and the cycle length is configured to indicate a cycle period according to which the UE transmits the uplink wake-up signal periodically. ### Claim 13 (depends on 11) The base station according to claim 11, wherein the first broadcast message comprises a format of the uplink wake-up signal and a resource position for transmitting the uplink wake-up signal. ### Claim 14 (depends on 10) The base station according to claim 10, wherein the processor is further configured to: transmit a second broadcast message to the UE for instructing the UE to stop transmitting the uplink wake-up signal. ### Claim 15 (depends on 9) The base station according to claim 9, wherein the UE is in an activated state, wherein the processor is further configured to: receive uplink data transmitted at two or more different times by the same UE. ### Claim 16 (depends on 9) The base station according to claim 9, wherein the processor is further configured to: in response to determining that the UE is common UE, hand over the common UE to a public Long Term Evolution (LTE) network. ### Claim 17 (canceled) ### Claim 18 A non-transitory computer-readable storage medium having stored thereon computer instructions that, when executed by a processor of a base station for a high-speed-railway dedicated network, cause the base station to perform a method for identifying user equipment (UE), the method comprising: receiving uplink messages transmitted at two or more different times by a same UE; determining, according to the uplink messages transmitted at two or more different times, Remote Radio Unit (RRU) positional information of each RRU that receives an uplink message; judging whether a proportion of a number of different pieces of the RRU positional information among at least two pieces of the RRU positional information to a total number of the at least two pieces of the RRU positional information reaches a preset proportion threshold; determining the UE as a common UE in response to the proportion not reaching the preset proportion threshold; and determining the UE as a fast-moving UE in response to the proportion reaching the preset proportion threshold. ### Claim 19 (depends on 18) The non-transitory computer-readable storage medium according to claim 18, wherein the UE is in an idle state, and the receiving the uplink messages transmitted at two or more different times by the same UE comprises: receiving uplink wake-up signals transmitted at two or more different times by the same UE. ### Claim 20 (depends on 19) The non-transitory computer-readable storage medium according to claim 19, wherein the method further comprises: before receiving the uplink messages transmitted at two or more different times by the same UE, transmitting a first broadcast message to the UE for instructing the UE to transmit an uplink wake-up signal. ### Claim 21 (depends on 20) The non-transitory computer-readable storage medium according to claim 20, wherein the first broadcast message comprises at least one of a preset interval length or a preset cycle length, wherein the interval length is configured to indicate a time interval after expiration of which the UE transmits the uplink wake-up signal, and the cycle length is configured to indicate a cycle period according to which the UE transmits the uplink wake-up signal periodically.