# US 2019/0174551 A1 · Random Access Method, Apparatus, and System, Terminal, and Base Station > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0174551 A1 - Document ID: US20190174551A1 - Status: Published application - Kind: A1 - Application number: 16/272,705 - Filed: 2019-02-11 - Published: 2019-06-06 - Earliest claimed: 2016-08-12 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Kunpeng Liu; Bingyu Qu; Jianqin Liu - Web page: https://patentgrep.com/patent/US20190174551A1 ## CPC - H04W 74/0833: Random access procedures, e.g. with 4-step access - H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)} - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04W 74/004: {in the uplink, i.e. towards network} - H04B 7/088: {using beam selection} - H04L 5/0005: {Time-frequency} - 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) - H04B: TRANSMISSION ## Abstract A method includes: configuring, by a base station, at least two types of random access resources, where the at least two types of random access resources include a first-type random access resource and a second-type random access resource; and different types of random access resources are in a one-to-one correspondence with different sending beam forms of a terminal; or the first-type random access resource is associated with resources of different downlink signals, and the second-type random access resource is not associated with the resources of the different downlink signals. ## Claims ### Claim 1 A random access method, wherein the method comprises: configuring, by a base station, at least two types of random access resources, wherein the at least two types of random access resources comprise a first-type random access resource and a second-type random access resource; and different types of random access resources are in a one-to-one correspondence with different sending beam forms of a terminal; or the first-type random access resource is associated with resources of different downlink signals, and the second-type random access resource is not associated with the resources of the different downlink signals; or the first-type random access resource is associated with resources of different downlink signals in a first association manner, and the second-type random access resource is associated with the resources of the different downlink signals in a second association manner, wherein the first association manner is different from the second association manner; and receiving, by the base station, a random access preamble that is sent by the terminal by using the first-type random access resource or the second-type random access resource. ### Claim 2 (depends on 1) The method according to claim 1, wherein the method further comprises: sending, by the base station, X first signals and Y second signals, wherein each of the Y second signals comprises random access configuration information, the random access configuration information in each second signal comprises at least one of first-type random access configuration information or second-type random access configuration information, the first-type random access configuration information is used to indicate Z first-type random access resources and a correspondence between the Z first-type random access resources and resources of the X first signals, and the second-type configuration information is used to indicate the second-type random access resource, or the second-type configuration information is used to indicate Z second-type random access resources and a correspondence between the Z second-type random access resources and the resources of the X first signals, wherein the first signal is at least one of a downlink synchronization signal, a broadcast signal, or a downlink measurement pilot signal; the second signal is a broadcast signal or a system message; X, Y, and Z are positive integers; and X, Y, and Z are all greater than 1. ### Claim 3 (depends on 2) The method according to claim 2, wherein the correspondence between the Z first-type random access resources and the resources of the X first signals is: X different first signals are corresponding to time-frequency resources of Z different first-type random access resources; and the correspondence between the Z second-type random access resources and the resources of the X first signals is: X different first signals are corresponding to code resources of Z different second-type random access resources. ### Claim 4 (depends on 3) The method according to claim 3, wherein the correspondence between the Z first-type random access resources and the resources of the X first signals comprises: each of the Z first-type random access resources is corresponding to one of different resources of X downlink signals, and the resource is a code resource, a time-domain resource, or a frequency-domain resource; and the correspondence between the Z second-type random access resources and the resources of the X first signals comprises: each of the Z second-type random access resources is corresponding to one of different resources of X downlink signals, and the resource is a code resource, a time-domain resource, or a frequency-domain resource. ### Claim 5 (depends on 4) The method according to claim 4, wherein the correspondence between the Z first-type random access resources and the resources of the X first signals comprises: each of the Z first-type random access resources is corresponding to one of different sequences of X downlink synchronization signals; or each of the Z first-type random access resources is corresponding to one of different time-domain resources of X downlink synchronization signals; or each of the Z first-type random access resources is corresponding to one of different frequency-domain resources of X downlink synchronization signals; or each of the Z first-type random access resources is corresponding to one of different sequences of X downlink measurement pilot signals; or each of the Z first-type random access resources is corresponding to one of different time-domain resources of X downlink measurement pilot signals; or each of the Z first-type random access resources is corresponding to one of different frequency-domain resources of X downlink measurement pilot signals; or each of the Z first-type random access resources is corresponding to one of different scrambling codes of X broadcast signals; or each of the Z first-type random access resources is corresponding to one of different time-domain resources of X broadcast signals; or each of the Z first-type random access resources is corresponding to one of different frequency-domain resources of X broadcast signals. ### Claim 6 A random access method, wherein the method comprises: determining, by a terminal, at least two types of random access resources, wherein the at least two types of random access resources comprise a first-type random access resource and a second-type random access resource; and different types of random access resources are in a one-to-one correspondence with different sending beam forms of the terminal; or the first-type random access resource is associated with resources of different downlink signals, and the second-type random access resource is not associated with the resources of the different downlink signals; or the first-type random access resource is associated with resources of different downlink signals in a first association manner, and the second-type random access resource is associated with the resources of the different downlink signals in a second association manner, wherein the first association manner is different from the second association manner; and sending, by the terminal, a random access preamble by using the first-type random access resource or the second-type random access resource. ### Claim 7 (depends on 6) The method according to claim 6, wherein the method further comprises: receiving, by the terminal, first signals and second signals that are sent by a base station, wherein each of the second signals comprises random access configuration information, the random access configuration information in each second signal comprises at least one of first-type random access configuration information or second-type random access configuration information, the first-type random access configuration information is used to indicate Z first-type random access resources and a correspondence between the Z first-type random access resources and resources of the X first signals, and the second-type configuration information is used to indicate the second-type random access resource, or the second-type random access configuration information is used to indicate Z second-type random access resources and a correspondence between the Z second-type random access resources and the resources of the X first signals, wherein the first signal is at least one of a downlink synchronization signal, a broadcast signal, or a downlink measurement pilot signal; the second signal is a broadcast signal or a system message; X, Y, and Z are positive integers; and X, Y, and Z are all greater than 1. ### Claim 8 (depends on 7) The method according to claim 7, wherein the correspondence between the Z first-type random access resources and the resources of the X first signals is: X different first signals are corresponding to time-frequency resources of Z different first-type random access resources; and the correspondence between the Z second-type random access resources and the resources of the X first signals is: X different first signals are corresponding to code resources of Z different second-type random access resources. ### Claim 9 (depends on 8) The method according to claim 8, wherein the correspondence between the Z first-type random access resources and the resources of the X first signals comprises: each of the Z first-type random access resources is corresponding to one of different resources of X downlink signals, and the resource is a code resource, a time-domain resource, or a frequency-domain resource; and the correspondence between the Z second-type random access resources and the resources of the X first signals comprises: each of the Z second-type random access resources is corresponding to one of different resources of X downlink signals, and the resource is a code resource, a time-domain resource, or a frequency-domain resource. ### Claim 10 (depends on 9) The method according to claim 9, wherein the correspondence between the Z first-type random access resources and the resources of the X first signals comprises: each of the Z first-type random access resources is corresponding to one of different sequences of X downlink synchronization signals; or each of the Z first-type random access resources is corresponding to one of different time-domain resources of X downlink synchronization signals; or each of the Z first-type random access resources is corresponding to one of different frequency-domain resources of X downlink synchronization signals; or each of the Z first-type random access resources is corresponding to one of different sequences of X downlink measurement pilot signals; or each of the Z first-type random access resources is corresponding to one of different time-domain resources of X downlink measurement pilot signals; or each of the Z first-type random access resources is corresponding to one of different frequency-domain resources of X downlink measurement pilot signals; or each of the Z first-type random access resources is corresponding to one of different scrambling codes of X broadcast signals; or each of the Z first-type random access resources is corresponding to one of different time-domain resources of X broadcast signals; or each of the Z first-type random access resources is corresponding to one of different frequency-domain resources of X broadcast signals. ### Claim 11 A random access apparatus, wherein the apparatus comprises: a processor; a non-transitory computer-readable storage medium storing a program to be executed by the processor, the program including instructions to: configure at least two types of random access resources, wherein the at least two types of random access resources comprise a first-type random access resource and a second-type random access resource; and different types of random access resources are in a one-to-one correspondence with different sending beam forms of a terminal; or the first-type random access resource is associated with resources of different downlink signals, and the second-type random access resource is not associated with the resources of the different downlink signals; or the first-type random access resource is associated with resources of different downlink signals in a first association manner, and the second-type random access resource is associated with the resources of the different downlink signals in a second association manner, wherein the first association manner is different from the second association manner; and a receiver, configured to receive a random access preamble that is sent by the terminal by using the first-type random access resource or the second-type random access resource. ### Claim 12 (depends on 11) The apparatus according to claim 11, wherein the apparatus further comprises: a transmitter, configured to send X first signals and Y second signals, wherein each of the Y second signals comprises at least one of random access configuration information, the random access configuration information in each second signal comprises at least one of first-type random access configuration information or second-type random access configuration information, the first-type random access configuration information is used to indicate Z first-type random access resources and a correspondence between the Z first-type random access resources and resources of the X first signals, and the second-type configuration information is used to indicate the second-type random access resource, or the second-type configuration information is used to indicate Z second-type random access resources and a correspondence between the Z second-type random access resources and the resources of the X first signals, wherein the first signal is at least one of a downlink synchronization signal, a broadcast signal, or a downlink measurement pilot signal; the second signal is a broadcast signal or a system message; X, Y, and Z are positive integers; and X, Y, and Z are all greater than 1. ### Claim 13 (depends on 12) The apparatus according to claim 12, wherein the correspondence between the Z first-type random access resources and the resources of the X first signals is: X different first signals are corresponding to time-frequency resources of Z different first-type random access resources; and the correspondence between the Z second-type random access resources and the resources of the X first signals is: X different first signals are corresponding to code resources of Z different second-type random access resources. ### Claim 14 (depends on 13) The apparatus according to claim 13, wherein the correspondence between the Z first-type random access resources and the resources of the X first signals comprises: each of the Z first-type random access resources is corresponding to one of different resources of X downlink signals, and the resource is a code resource, a time-domain resource, or a frequency-domain resource; and the correspondence between the Z second-type random access resources and the resources of the X first signals comprises: each of the Z second-type random access resources is corresponding to one of different resources of X downlink signals, and the resource is a code resource, a time-domain resource, or a frequency-domain resource. ### Claim 15 (depends on 14) The apparatus according to claim 14, wherein the correspondence between the Z first-type random access resources and the resources of the X first signals comprises: each of the Z first-type random access resources is corresponding to one of different sequences of X downlink synchronization signals; or each of the Z first-type random access resources is corresponding to one of different time-domain resources of X downlink synchronization signals; or each of the Z first-type random access resources is corresponding to one of different frequency-domain resources of X downlink synchronization signals; or each of the Z first-type random access resources is corresponding to one of different sequences of X downlink measurement pilot signals; or each of the Z first-type random access resources is corresponding to one of different time-domain resources of X downlink measurement pilot signals; or each of the Z first-type random access resources is corresponding to one of different frequency-domain resources of X downlink measurement pilot signals; or each of the Z first-type random access resources is corresponding to one of different scrambling codes of X broadcast signals; or each of the Z first-type random access resources is corresponding to one of different time-domain resources of X broadcast signals; or each of the Z first-type random access resources is corresponding to one of different frequency-domain resources of X broadcast signals. ### Claim 16 A random access apparatus, wherein the apparatus comprises: a processor; a non-transitory computer-readable storage medium storing a program to be executed by the processor, the program including instructions to: determine at least two types of random access resources, wherein the at least two types of random access resources comprise a first-type random access resource and a second-type random access resource; and different types of random access resources are in a one-to-one correspondence with different sending beam forms of a terminal; or the first-type random access resource is associated with resources of different downlink signals, and the second-type random access resource is not associated with the resources of the different downlink signals; or the first-type random access resource is associated with resources of different downlink signals in a first association manner, and the second-type random access resource is associated with the resources of the different downlink signals in a second association manner, wherein the first association manner is different from the second association manner; and a transmitter, configured to send a random access preamble by using the first-type random access resource or the second-type random access resource. ### Claim 17 (depends on 16) The apparatus according to claim 16, wherein the apparatus further comprises: a receiver, configured to receive first signals and second signals that are sent by a base station, wherein each of the second signals comprises at least one of random access configuration information, the random access configuration information in each second signal comprises at least one of first-type random access configuration information and second-type random access configuration information, the first-type random access configuration information is used to indicate Z first-type random access resources and a correspondence between the Z first-type random access resources and resources of the X first signals, and the second-type configuration information is used to indicate the second-type random access resource, or the second-type random access configuration information is used to indicate Z second-type random access resources and a correspondence between the Z second-type random access resources and the resources of the X first signals, wherein the first signal is at least one of a downlink synchronization signal, a broadcast signal, or a downlink measurement pilot signal; the second signal is a broadcast signal or a system message; X, Y, and Z are positive integers; and X, Y, and Z are all greater than 1. ### Claim 18 (depends on 17) The apparatus according to claim 17 wherein the correspondence between the Z first-type random access resources and the resources of the X first signals is: X different first signals are corresponding to time-frequency resources of Z different first-type random access resources; and the correspondence between the Z second-type random access resources and the resources of the X first signals is: X different first signals are corresponding to code resources of Z different second-type random access resources. ### Claim 19 (depends on 18) The apparatus according to claim 18, wherein the correspondence between the Z first-type random access resources and the resources of the X first signals comprises: each of the Z first-type random access resources is corresponding to one of different resources of X downlink signals, and the resource is a code resource, a time-domain resource, or a frequency-domain resource; and the correspondence between the Z second-type random access resources and the resources of the X first signals comprises: each of the Z second-type random access resources is corresponding to one of different resources of X downlink signals, and the resource is a code resource, a time-domain resource, or a frequency-domain resource. ### Claim 20 (depends on 19) The apparatus according to claim 19, wherein the correspondence between the Z first-type random access resources and the resources of the X first signals comprises: each of the Z first-type random access resources is corresponding to one of different sequences of X downlink synchronization signals; or each of the Z first-type random access resources is corresponding to one of different time-domain resources of X downlink synchronization signals; or each of the Z first-type random access resources is corresponding to one of different frequency-domain resources of X downlink synchronization signals; or each of the Z first-type random access resources is corresponding to one of different sequences of X downlink measurement pilot signals; or each of the Z first-type random access resources is corresponding to one of different time-domain resources of X downlink measurement pilot signals; or each of the Z first-type random access resources is corresponding to one of different frequency-domain resources of X downlink measurement pilot signals; or each of the Z first-type random access resources is corresponding to one of different scrambling codes of X broadcast signals; or each of the Z first-type random access resources is corresponding to one of different time-domain resources of X broadcast signals; or each of the Z first-type random access resources is corresponding to one of different frequency-domain resources of X broadcast signals.