Methods, machines, and random access systems; storage media and electronic devices.

Abstract

Invention details;

Description

Random access method, device and system, storage medium, and electronic device

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on August 28, 2020, with application number 202010889907.3 and invention name “A random access method, device and system, storage medium, and electronic device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The embodiments of the present disclosure relate to the field of communications, and in particular, to a random access method, device and system, a storage medium, and an electronic device. Background Art

[0003] During two-step random access, the preamble resources of the two-step random access message A Physical Random Access Channel (MsgA PRACH) are generally orthogonal or quasi-orthogonal. To avoid over-reserving the payload resources of the two-step random access message A Physical Uplink Shared Channel (MsgA PUSCH), the preamble and PRU (PUSCH Resource Unit) are typically configured with a many-to-one ratio. Therefore, the probability of payload collision is higher than that of preamble. Preamble detection only checks for the presence of a sequence, while payload parsing requires data demodulation and decoding. Therefore, payload parsing requires higher channel quality than preamble detection. Therefore, ensuring the transmission of MsgA PRACH and MsgA PUSCH signals to improve their access success rate is a pressing technical issue.

[0004] Summary of the Invention

[0005] The embodiments of the present disclosure provide a random access method, apparatus, system, storage medium, and electronic device to at least solve the problem in the related art of how to ensure the transmission of MsgA PRACH signals and MsgA PUSCH signals to reduce the error probability of their parsing.

[0006] According to one embodiment of the present disclosure, a random access method is provided, applied to a terminal, including: receiving a broadcast signal sent by a base station on a non-SUL carrier, and parsing the broadcast signal to obtain a first RSRP threshold and a second RSRP threshold, wherein the broadcast signal carries the first RSRP threshold and the second RSRP threshold, the second RSRP threshold is greater than the first RSRP threshold, the first RSRP threshold is an RSRP limit value at which an MsgA PRACH signal is received and parsed on a non-SUL carrier to reach a block error rate target value, and the second RSRP threshold is an RSRP limit value at which an MsgA PUSCH signal is received and parsed on a non-SUL carrier to reach a block error rate target value; measuring the RSRP value of the broadcast signal on the non-SUL carrier to obtain an RSRP measurement value; and determining carriers for sending the MsgA PUSCH signal and the MsgA PRACH signal based on numerical relationships between the RSRP measurement value and the first RSRP threshold and the second RSRP threshold.

[0007] In an exemplary embodiment, determining the carriers for sending the MsgA PUSCH signal and the MsgA PRACH signal respectively according to the numerical relationship between the RSRP measurement value and the first RSRP threshold and the second RSRP threshold includes one of the following: when the RSRP measurement value is less than the first RSRP threshold, sending the MsgA PUSCH signal on the SUL carrier, and sending the MsgA PRACH signal on the SUL carrier; or, when the RSRP measurement value is greater than the first RSRP threshold and less than the second RSRP threshold, sending the MsgA PUSCH signal on the SUL carrier, and sending the MsgA PRACH signal on a non-SUL carrier; or, when the RSRP measurement value is greater than the second RSRP threshold, sending the MsgA PUSCH signal on a non-SUL carrier, and sending the MsgA PRACH signal on a non-SUL carrier.

[0008] Before respectively determining the carriers for sending the MsgA PUSCH signal and the MsgA PRACH signal according to the numerical relationship between the RSRP measurement value and the first RSRP threshold and the second RSRP threshold, access resources of the SUL carrier and the non-SUL carrier are configured by the base station.

[0009] According to another embodiment of the present disclosure, a random access method is provided, which is applied to a base station, and includes: sending a broadcast signal to a terminal on a non-SUL carrier, wherein the broadcast signal is used to instruct the terminal to parse the broadcast signal to obtain a first RSRP threshold and a second RSRP threshold, wherein the broadcast signal carries the first RSRP threshold and the second RSRP threshold, the second RSRP threshold is greater than the first RSRP threshold, the first RSRP threshold is an RSRP limit value at which an MsgA PRACH signal is received and parsed on a non-SUL carrier to reach a block error rate target value, and the second RSRP threshold is an RSRP limit value at which an MsgA PUSCH signal is received and parsed on a non-SUL carrier to reach a block error rate target value; further used to instruct the terminal to measure the RSRP value of the broadcast signal on the non-SUL carrier to obtain an RSRP measurement value; and further used to instruct the terminal to determine carriers for sending MsgA PUSCH signals and MsgA PRACH signals, respectively, based on numerical relationships between the RSRP measurement value and the first RSRP threshold and the second RSRP threshold.

[0010] In an exemplary embodiment, when the RSRP measurement value is less than the first RSRP threshold, the MsgA PUSCH signal is sent on the SUL carrier, and the MsgA PRACH signal is sent on the SUL carrier; or, when the RSRP measurement value is greater than the first RSRP threshold and less than the second RSRP threshold, the MsgA PUSCH signal is sent on the SUL carrier, and the MsgA PRACH signal is sent on the non-SUL carrier; or, when the RSRP measurement value is greater than the second RSRP threshold, the MsgA PUSCH signal is sent on the non-SUL carrier, and the MsgA PRACH signal is sent on the non-SUL carrier.

[0011] In an exemplary embodiment, before determining the carriers for sending the MsgA PUSCH signal and the MsgA PRACH signal respectively according to the numerical relationship between the RSRP measurement value and the first RSRP threshold and the second RSRP threshold, access resources of the SUL carrier and the non-SUL carrier are configured.

[0012] According to another embodiment of the present disclosure, a random access apparatus is provided, comprising: a receiving module configured to receive a broadcast signal sent by a base station on a non-SUL carrier, and parse the broadcast signal to obtain a first RSRP threshold and a second RSRP threshold, wherein the broadcast signal carries the first RSRP threshold and the second RSRP threshold, the second RSRP threshold is greater than the first RSRP threshold, the first RSRP threshold is an RSRP limit value at which an MsgA PRACH signal is received and parsed on a non-SUL carrier to reach a block error rate target value, and the second RSRP threshold is an RSRP limit value at which an MsgA PUSCH signal is received and parsed on a non-SUL carrier to reach a block error rate target value; a measuring module configured to measure an RSRP value of the broadcast signal on the non-SUL carrier to obtain an RSRP measurement value; and a determining module configured to determine carriers for transmitting MsgA PUSCH signals and MsgA PRACH signals, respectively, based on numerical relationships between the RSRP measurement value and the first RSRP threshold and the second RSRP threshold.

[0013] In an exemplary embodiment, the determining module is further configured to: when the RSRP measurement value is less than the first RSRP threshold, send the MsgA PUSCH signal on the SUL carrier, and send the MsgA PRACH signal on the SUL carrier; or, when the RSRP measurement value is greater than the first RSRP threshold and less than the second RSRP threshold, send the MsgA PUSCH signal on the SUL carrier, and send the MsgA PRACH signal on the non-SUL carrier; or, when the RSRP measurement value is greater than the second RSRP threshold, send the MsgA PUSCH signal on the non-SUL carrier, and send the MsgA PRACH signal on the non-SUL carrier.

[0014] In an exemplary embodiment, before determining the carriers for sending the MsgA PUSCH signal and the MsgA PRACH signal respectively according to the numerical relationship between the RSRP measurement value and the first RSRP threshold and the second RSRP threshold, access resources of the SUL carrier and the non-SUL carrier are configured by the base station.

[0015] According to another embodiment of the present disclosure, a random access apparatus is provided, comprising: a sending module, configured to send a broadcast signal to a terminal on a non-SUL carrier, wherein the broadcast signal is used to instruct the terminal to parse the broadcast signal to obtain a first RSRP threshold and a second RSRP threshold, wherein the broadcast signal carries the first RSRP threshold and the second RSRP threshold, the second RSRP threshold is greater than the first RSRP threshold, the first RSRP threshold is an RSRP limit value at which an MsgA PRACH signal is received and parsed on a non-SUL carrier to reach a block error rate target value, and the second RSRP threshold is an RSRP limit value at which an MsgA PUSCH signal is received and parsed on a non-SUL carrier to reach a block error rate target value; the apparatus is further configured to instruct the terminal to measure an RSRP value of the broadcast signal on the non-SUL carrier to obtain an RSRP measurement value; and the apparatus is further configured to instruct the terminal to determine carriers for transmitting an MsgA PUSCH signal and an MsgA PRACH signal, respectively, based on numerical relationships between the RSRP measurement value and the first RSRP threshold and the second RSRP threshold.

[0016] In an exemplary embodiment, when the RSRP measurement value is less than the first RSRP threshold, the MsgA PUSCH signal is sent on the SUL carrier, and the MsgA PRACH signal is sent on the SUL carrier; or, when the RSRP measurement value is greater than the first RSRP threshold and less than the second RSRP threshold, the MsgA PUSCH signal is sent on the SUL carrier, and the MsgA PRACH signal is sent on the non-SUL carrier; or, when the RSRP measurement value is greater than the second RSRP threshold, the MsgA PUSCH signal is sent on the non-SUL carrier, and the MsgA PRACH signal is sent on the non-SUL carrier.

[0017] In an exemplary embodiment, the apparatus further includes: a configuration module configured to configure access resources of a SUL carrier and a non-SUL carrier before determining the carriers for sending the MsgA PUSCH signal and the MsgA PRACH signal respectively based on the numerical relationship between the RSRP measurement value and the first RSRP threshold and the second RSRP threshold.

[0018] According to another embodiment of the present disclosure, a random access system is provided, including: a base station and a terminal, wherein the base station is configured to send a broadcast signal to the terminal on a non-SUL carrier; the terminal is configured to receive the broadcast signal sent by the base station on the non-SUL carrier and parse the broadcast signal to obtain a first RSRP threshold and a second RSRP threshold, wherein the broadcast signal carries the first RSRP threshold and the second RSRP threshold, the second RSRP threshold is greater than the first RSRP threshold, the first RSRP threshold is an RSRP limit value at which an MsgA PRACH signal is received and parsed on the non-SUL carrier and reaches a target block error rate value, and the second RSRP threshold is an RSRP limit value at which an MsgA PUSCH signal is received and parsed on the non-SUL carrier and reaches a target block error rate value; the terminal is further configured to measure an RSRP value of the broadcast signal on the non-SUL carrier to obtain an RSRP measurement value; and the terminal is further configured to determine carriers for transmitting the MsgA PUSCH signal and the MsgA PRACH signal, respectively, based on numerical relationships between the RSRP measurement value and the first RSRP threshold and the second RSRP threshold.

[0019] In an exemplary embodiment, the terminal is further configured to: when the RSRP measurement value is less than the first RSRP threshold, send the MsgA PUSCH signal on the SUL carrier, and send the MsgA PRACH signal on the SUL carrier; or, when the RSRP measurement value is greater than the first RSRP threshold and less than the second RSRP threshold, send the MsgA PUSCH signal on the SUL carrier, and send the MsgA PRACH signal on the non-SUL carrier; or, when the RSRP measurement value is greater than the second RSRP threshold, send the MsgA PUSCH signal on the non-SUL carrier, and send the MsgA PRACH signal on the non-SUL carrier.

[0020] In an exemplary embodiment, the base station is further configured to configure access resources for the SUL carrier and the non-SUL carrier before determining the carriers for sending the MsgA PUSCH signal and the MsgA PRACH signal respectively according to the numerical relationship between the RSRP measurement value and the first RSRP threshold and the second RSRP threshold.

[0021] According to another embodiment of the present disclosure, a computer-readable storage medium is provided, in which a computer program is stored. The computer program is configured to execute the steps of any one of the above method embodiments when running.

[0022] According to another embodiment of the present disclosure, an electronic device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to perform the steps in any one of the above method embodiments.

[0023] According to the embodiments of the present disclosure, a broadcast signal sent by a base station on a non-SUL carrier is received and parsed to obtain a first RSRP threshold and a second RSRP threshold, wherein the broadcast signal carries the first RSRP threshold and the second RSRP threshold, the second RSRP threshold is greater than the first RSRP threshold, the first RSRP threshold is an RSRP limit value at which an MsgA PRACH signal is received and parsed on a non-SUL carrier to reach a target block error rate, and the second RSRP threshold is an RSRP limit value at which an MsgA PUSCH signal is received and parsed on a non-SUL carrier to reach a target block error rate; the RSRP value of the broadcast signal is measured on the non-SUL carrier to obtain an RSRP measurement value; and the carriers for transmitting the MsgA PUSCH signal and the MsgA PRACH signal are determined based on the numerical relationship between the RSRP measurement value and the first RSRP threshold and the second RSRP threshold. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG1 is a hardware structure block diagram of a mobile terminal for a random access method according to an embodiment of the present disclosure;

[0025] FIG2 is a flow chart of a random access method according to an embodiment of the present disclosure;

[0026] FIG3 is a flowchart of another random access method according to an embodiment of the present disclosure;

[0027] FIG4 is a structural block diagram of a random access device according to an embodiment of the present disclosure;

[0028] FIG5 is a structural block diagram of another random access device according to an embodiment of the present disclosure;

[0029] FIG6 is a structural block diagram of a random access system according to an embodiment of the present disclosure;

[0030] FIG7 is a flowchart of a random access method according to an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0031] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings and in conjunction with embodiments.

[0032] It should be noted that the terms "first", "second", etc. in the specification and claims of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0033] The method embodiments provided in the embodiments of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Taking operation on a mobile terminal as an example, Figure 1 is a hardware structure block diagram of a mobile terminal of a random access method of an embodiment of the present disclosure. As shown in Figure 1, the mobile terminal may include one or more (only one is shown in Figure 1) processors 102 (the processor 102 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 configured to store data, wherein the above-mentioned mobile terminal may also include a transmission device 106 and an input and output device 108 configured to have a communication function. It can be understood by those skilled in the art that the structure shown in Figure 1 is only for illustration and does not limit the structure of the above-mentioned mobile terminal. For example, the mobile terminal may also include more or fewer components than those shown in Figure 1, or have a configuration different from that shown in Figure 1.

[0034] The memory 104 can be configured to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the random access method in the embodiment of the present disclosure. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, implementing the above-mentioned method. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 104 may further include a memory remotely located relative to the processor 102, and these remote memories may be connected to the mobile terminal via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0035] The transmission device 106 is configured to receive or transmit data via a network. A specific example of the aforementioned network may include a wireless network provided by the mobile terminal's communications provider. In one embodiment, the transmission device 106 includes a network interface controller (NIC), which can be connected to other network devices via a base station to enable communication with the Internet. In one embodiment, the transmission device 106 may be a radio frequency (RF) module, configured to communicate with the Internet wirelessly.

[0036] The embodiments of the present application can be run on a network architecture in which base stations and terminals interact with each other.

[0037] In this embodiment, a random access method running on the above-mentioned mobile terminal or network architecture is provided. FIG2 is a flow chart of a random access method according to an embodiment of the present disclosure. As shown in FIG2 , the flow chart includes the following steps:

[0038] Step S202: Receive a broadcast signal sent by a base station on a non-SUL carrier, and parse the broadcast signal to obtain a first RSRP threshold and a second RSRP threshold, wherein the broadcast signal carries the first RSRP threshold and the second RSRP threshold, the second RSRP threshold is greater than the first RSRP threshold, the first RSRP threshold is an RSRP limit value for an MsgA PRACH signal received and parsed on a non-SUL carrier to reach a block error rate target value, and the second RSRP threshold is an RSRP limit value for an MsgA PUSCH signal received and parsed on a non-SUL carrier to reach a block error rate target value;

[0039] Step S204: measuring the RSRP value of the broadcast signal on the non-SUL carrier to obtain an RSRP measurement value;

[0040] Step S206: determining carriers for transmitting the MsgA PUSCH signal and the MsgA PRACH signal according to numerical relationships between the RSRP measurement value and the first RSRP threshold and the second RSRP threshold.

[0041] Through the above steps, a broadcast signal sent by a base station on a non-SUL carrier is received and parsed to obtain a first RSRP threshold and a second RSRP threshold, wherein the broadcast signal carries the first RSRP threshold and the second RSRP threshold, the second RSRP threshold is greater than the first RSRP threshold, the first RSRP threshold is an RSRP limit value for an MsgA PRACH signal to be received and parsed on a non-SUL carrier and reach a target block error rate, and the second RSRP threshold is an RSRP limit value for an MsgA PUSCH signal to be received and parsed on a non-SUL carrier and reach a target block error rate; the RSRP value of the broadcast signal is measured on the non-SUL carrier to obtain an RSRP measurement value; and the carriers for transmitting the MsgA PUSCH signal and the MsgA PRACH signal are determined based on the numerical relationship between the RSRP measurement value and the first RSRP threshold and the second RSRP threshold. Therefore, the transmission of the MsgA PRACH signal and the MsgA PUSCH signal can be guaranteed to reduce the error probability of their parsing, thereby improving the access success rate.

[0042] It should be noted that the RSRP limit value in this embodiment may be a preset value derived from a simulation. If the measured RSRP value on a non-SUL carrier is less than the RSRP limit value, the block error rate corresponding to the non-SUL carrier will not meet the target block error rate value, failing to meet system performance requirements. Switching to a SUL carrier can be performed to bring the block error rate within the target value, thereby improving access success rates.

[0043] It should be noted that the “broadcast signal” in this embodiment may be a synchronization signal and a PBCH signal block (SynCH signal ronization Signal and PBCH signal Block, referred to as SSB) signal.

[0044] In an exemplary embodiment, determining the carrier for sending the MsgA PUSCH signal and the MsgA PRACH signal according to the numerical relationship between the RSRP measurement value and the first RSRP threshold and the second RSRP threshold, respectively, includes one of the following:

[0045] In a case where the RSRP measurement value is less than the first RSRP threshold, sending the MsgA PUSCH signal on the SUL carrier, and sending the MsgA PRACH signal on the SUL carrier; or,

[0046] In a case where the RSRP measurement value is greater than the first RSRP threshold and less than the second RSRP threshold, sending the MsgA PUSCH signal on the SUL carrier, and sending the MsgA PRACH signal on the non-SUL carrier; or

[0047] In a case where the RSRP measurement value is greater than the second RSRP threshold, the MsgA PUSCH signal is sent on a non-SUL carrier, and the MsgA PRACH signal is sent on a non-SUL carrier.

[0048] When the RSRP measurement value on the non-SUL carrier is less than the limit value, switching the signal from the non-SUL carrier to the SUL carrier can enable the signal to meet the signal analysis standard (such as the block error rate standard) even with a lower RSRP value.

[0049] In an exemplary embodiment, before determining the carriers for transmitting the MsgA PUSCH signal and the MsgA PRACH signal based on the numerical relationships between the RSRP measurement value and the first RSRP threshold and the second RSRP threshold, respectively, access resources for both the SUL carrier and the non-SUL carrier are configured by the base station. It should be noted that pre-configuring the access resources for the SUL carrier and the non-SUL carrier by the base station helps ensure channel switching between different carriers, such that the access process is not affected regardless of the carrier on which the channel is transmitted.

[0050] This embodiment further provides a random access method, which is applied to a base station. FIG3 is a flow chart of another random access method according to an embodiment of the present disclosure. As shown in FIG3 , the method includes:

[0051] Step S301: Send a broadcast signal to a terminal on a non-SUL carrier, wherein the broadcast signal is used to instruct the terminal to parse the broadcast signal to obtain a first RSRP threshold and a second RSRP threshold, wherein the broadcast signal carries the first RSRP threshold and the second RSRP threshold, the second RSRP threshold is greater than the first RSRP threshold, the first RSRP threshold is an RSRP limit value for an MsgA PUSCH signal to be received and parsed on a non-SUL carrier and reach a block error rate target value, and the second RSRP threshold is an RSRP limit value for an MsgA PRACH signal to be received and parsed on a non-SUL carrier and reach a block error rate target value; the broadcast signal is also used to instruct the terminal to measure the RSRP value of the broadcast signal on the non-SUL carrier to obtain an RSRP measurement value; and the broadcast signal is further used to instruct the terminal to determine carriers for sending MsgA PUSCH signals and MsgA PRACH signals, respectively, based on a numerical relationship between the RSRP measurement value and the first RSRP threshold and the second RSRP threshold.

[0052] Through the above steps, the transmission of the MsgA PRACH signal and the MsgA PUSCH signal can be guaranteed to reduce the error probability of their parsing, thereby improving the access success rate.

[0053] In an exemplary embodiment, when the RSRP measurement value is less than the first RSRP threshold, the MsgA PUSCH signal is sent on the SUL carrier, and the MsgA PRACH signal is sent on the SUL carrier; or,

[0054] In a case where the RSRP measurement value is greater than the first RSRP threshold and less than the second RSRP threshold, sending the MsgA PUSCH signal on the SUL carrier, and sending the MsgA PRACH signal on the non-SUL carrier; or

[0055] In a case where the RSRP measurement value is greater than the second RSRP threshold, the MsgA PUSCH signal is sent on a non-SUL carrier, and the MsgA PRACH signal is sent on a non-SUL carrier.

[0056] In an exemplary embodiment, the method further includes: before determining the carriers for sending the MsgA PUSCH signal and the MsgA PRACH signal based on the numerical relationship between the RSRP measurement value and the first RSRP threshold and the second RSRP threshold, configuring access resources of the SUL carrier and the non-SUL carrier.

[0057] This embodiment also provides a random access device that is configured to implement the above-mentioned embodiments and optional implementations. Details already described will not be repeated. As used below, the term "module" may refer to a combination of software and / or hardware that implements a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementation using hardware, or a combination of software and hardware, is also possible and contemplated.

[0058] FIG4 is a structural block diagram of a random access device according to an embodiment of the present disclosure. As shown in FIG4 , the device includes:

[0059] a receiving module 42 configured to receive a broadcast signal sent by a base station on a non-SUL carrier, and parse the broadcast signal to obtain a first RSRP threshold and a second RSRP threshold, wherein the broadcast signal carries the first RSRP threshold and the second RSRP threshold, the second RSRP threshold is greater than the first RSRP threshold, the first RSRP threshold being an RSRP limit value at which an MsgA PRACH signal is received and parsed on a non-SUL carrier and reaches a target block error rate, and the second RSRP threshold being an RSRP limit value at which an MsgA PUSCH signal is received and parsed on a non-SUL carrier and reaches a target block error rate;

[0060] The measurement module 44 is configured to measure the RSRP value of the broadcast signal on the non-SUL carrier to obtain an RSRP measurement value;

[0061] The determination module 46 is configured to determine the carriers for sending the MsgA PUSCH signal and the MsgA PRACH signal according to the numerical relationship between the RSRP measurement value and the first RSRP threshold and the second RSRP threshold.

[0062] Through the above modules, the transmission of MsgA PRACH signals and MsgA PUSCH signals can be guaranteed to reduce the error probability of their parsing, thereby improving the access success rate.

[0063] In an exemplary embodiment, the determining module is further configured to:

[0064] In a case where the RSRP measurement value is less than the first RSRP threshold, sending the MsgA PUSCH signal on the SUL carrier, and sending the MsgA PRACH signal on the SUL carrier; or,

[0065] In a case where the RSRP measurement value is greater than the first RSRP threshold and less than the second RSRP threshold, sending the MsgA PUSCH signal on the SUL carrier, and sending the MsgA PRACH signal on the non-SUL carrier; or

[0066] In a case where the RSRP measurement value is greater than the second RSRP threshold, the MsgA PUSCH signal is sent on a non-SUL carrier, and the MsgA PRACH signal is sent on a non-SUL carrier.

[0067] In an exemplary embodiment, before determining the carriers for sending the MsgA PUSCH signal and the MsgA PRACH signal respectively based on the numerical relationship between the RSRP measurement value and the first RSRP threshold and the second RSRP threshold, access resources of the SUL carrier and the non-SUL carrier are configured by the base station.

[0068] It should be noted that the above modules can be implemented through software or hardware. For the latter, it can be implemented in the following ways, but not limited to: the above modules are all located in the same processor; or the above modules are located in different processors in any combination.

[0069] In this embodiment, another random access device is provided, which is configured to implement the above-mentioned embodiments and optional implementations. Details already described are not repeated here. As used below, the term "module" may refer to a combination of software and / or hardware that implements a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementation using hardware, or a combination of software and hardware, is also possible and contemplated.

[0070] FIG5 is a structural block diagram of another random access device according to an embodiment of the present disclosure. As shown in FIG5 , the device includes:

[0071] The sending module 51 is configured to send a broadcast signal to the terminal on a non-SUL carrier, wherein the broadcast signal is used to instruct the terminal to parse the broadcast signal to obtain a first RSRP threshold and a second RSRP threshold, wherein the broadcast signal carries the first RSRP threshold and the second RSRP threshold, the second RSRP threshold is greater than the first RSRP threshold, the first RSRP threshold is an RSRP limit value at which the MsgA PRACH signal is received and parsed on the non-SUL carrier to reach a block error rate target value, and the second RSRP threshold is an RSRP limit value at which the MsgA PUSCH signal is received and parsed on the non-SUL carrier to reach a block error rate target value; the sending module 51 is further configured to instruct the terminal to measure the RSRP value of the broadcast signal on the non-SUL carrier to obtain an RSRP measurement value; and the sending module 51 is further configured to instruct the terminal to determine a carrier for transmitting the MsgA PUSCH signal and the MsgA PRACH signal based on a numerical relationship between the RSRP measurement value and the first RSRP threshold and the second RSRP threshold.

[0072] Through the above modules, the transmission of MsgA PRACH signals and MsgA PUSCH signals can be guaranteed to reduce the error probability of their parsing, thereby improving the access success rate.

[0073] In an exemplary embodiment, when the RSRP measurement value is less than the first RSRP threshold, the MsgA PUSCH signal is sent on the SUL carrier, and the MsgA PRACH signal is sent on the SUL carrier; or,

[0074] In a case where the RSRP measurement value is greater than the first RSRP threshold and less than the second RSRP threshold, sending the MsgA PUSCH signal on the SUL carrier, and sending the MsgA PRACH signal on the non-SUL carrier; or

[0075] In a case where the RSRP measurement value is greater than the second RSRP threshold, the MsgA PUSCH signal is sent on a non-SUL carrier, and the MsgA PRACH signal is sent on a non-SUL carrier.

[0076] In an exemplary embodiment, the apparatus further includes: a configuration module configured to configure access resources for the SUL carrier and the non-SUL carrier before determining the carriers for sending the MsgA PUSCH signal and the MsgA PRACH signal respectively based on the numerical relationship between the RSRP measurement value and the first RSRP threshold and the second RSRP threshold.

[0077] It should be noted that the above modules can be implemented through software or hardware. For the latter, it can be implemented in the following ways, but not limited to: the above modules are all located in the same processor; or the above modules are located in different processors in any combination.

[0078] This embodiment further provides a random access system. FIG6 is a structural block diagram of the random access system according to an embodiment of the present disclosure. As shown in FIG6 , the random access system includes:

[0079] A base station 62 and a terminal 64, wherein the base station 62 is configured to send a broadcast signal to the terminal on a non-SUL carrier; the terminal 64 is configured to receive the broadcast signal sent by the base station on the non-SUL carrier and parse the broadcast signal to obtain a first RSRP threshold and a second RSRP threshold, wherein the broadcast signal carries the first RSRP threshold and the second RSRP threshold, the second RSRP threshold is greater than the first RSRP threshold, the first RSRP threshold is an RSRP limit value at which an MsgA PRACH signal is received and parsed on the non-SUL carrier and reaches a block error rate target value, and the second RSRP threshold is an RSRP limit value at which an MsgA PUSCH signal is received and parsed on the non-SUL carrier and reaches a block error rate target value; the terminal 64 is further configured to measure the RSRP value of the broadcast signal on the non-SUL carrier to obtain an RSRP measurement value; and the terminal 64 is further configured to determine a carrier for transmitting the MsgA PUSCH signal and the MsgA PRACH signal based on a numerical relationship between the RSRP measurement value and the first RSRP threshold and the second RSRP threshold.

[0080] Through the above system, the transmission of MsgA PRACH signals and MsgA PUSCH signals can be guaranteed to reduce the error probability of their parsing, thereby improving the access success rate.

[0081] In an exemplary embodiment, the terminal 64 is further configured to:

[0082] In a case where the RSRP measurement value is less than the first RSRP threshold, sending the MsgA PUSCH signal on the SUL carrier, and sending the MsgA PRACH signal on the SUL carrier; or,

[0083] In a case where the RSRP measurement value is greater than the first RSRP threshold and less than the second RSRP threshold, sending the MsgA PUSCH signal on the SUL carrier, and sending the MsgA PRACH signal on the non-SUL carrier; or

[0084] In a case where the RSRP measurement value is greater than the second RSRP threshold, the MsgA PUSCH signal is sent on a non-SUL carrier, and the MsgA PRACH signal is sent on a non-SUL carrier.

[0085] In an exemplary embodiment, the base station 62 is further configured to configure access resources for the SUL carrier and the non-SUL carrier before determining the carriers for sending the MsgA PUSCH signal and the MsgA PRACH signal respectively based on the numerical relationship between the RSRP measurement value and the first RSRP threshold and the second RSRP threshold.

[0086] Example Implementations

[0087] The following further explains the embodiments of the present disclosure in conjunction with application scenarios.

[0088] In an exemplary embodiment, the present disclosure proposes an uplink carrier selection method that can be applied to the two-step random access process. Through this method, the user terminal (User) can select the uplink carrier for sending the two-step random access message A Physical Random Access channel (MsgA PRACH) signal and the two-step random access message A Physical Uplink Shared channel (MsgA PUSCH) signal according to the actual beam quality measurement and the set threshold in the two-step random access scenario. It should be noted that the uplink carrier selection method proposed in this embodiment can also be applied to the four-step random access scenario.

[0089] In an exemplary embodiment, a cell (or a cell base station) is configured with a non-supplementary uplink (SUL) carrier and a supplementary uplink (SUL) carrier. The frequency of the SUL carrier is lower than that of the non-SUL carrier, so the user can obtain better detection and analysis performance by sending an uplink signal to the base station on the SUL carrier. The base station configures two-step random access corresponding resources for both the non-SUL carrier and the SUL carrier. The base station sends a synchronization signal and a PBCH block (SSB) signal on the downlink carrier corresponding to the non-SUL carrier, and carries two reference signal receiving power (RSRP) thresholds. The user selects the uplink carrier for sending the MsgA PRACH signal and the MsgA PUSCH signal based on the RSRP value of the SSB measured on the downlink carrier corresponding to the non-SUL carrier and the two RSRP thresholds obtained.

[0090] In an exemplary embodiment, the two RSRP thresholds are determined by the base station based on system simulation conditions. Initial values ​​are determined first and then adjusted based on actual communication conditions. The base station has the authority to set these values.

[0091] In an exemplary embodiment, these two RSRP thresholds represent the block error rate (BLER) achieved by the base station when a user transmits a PRACH or PUSCH signal on a SUL carrier or a non-SUL carrier, respectively, under channel conditions that meet these thresholds. This represents the system performance, which just meets the specified standard. Specifically, the first threshold represents the RSRP limit at which the MsgA PUSCH signal is received and analyzed on a non-SUL carrier and meets the BLER requirement (e.g., meets a specified value). The second threshold represents the RSRP limit at which the MsgA PRACH signal is received and analyzed on a non-SUL carrier and meets the BLER requirement (e.g., meets a specified value).

[0092] This method is a two-step random access uplink carrier selection method. A user selects an uplink carrier for transmitting a MsgA PRACH signal and a MsgA PUSCH signal based on the RSRP value of the SSB measured on the downlink carrier corresponding to the non-SUL carrier and the two RSRP thresholds obtained. The two-step random access uplink carrier selection method involved in the present disclosure includes, but is not limited to, implementation on devices and chips such as a digital signal processor (DSP), a field programmable gate array (FPGA), and an application-specific integrated circuit (ASIC).

[0093] According to electromagnetic wave propagation theory, higher-frequency electromagnetic waves experience greater transmission loss. Since SUL and non-SUL operate in different frequency bands—SUL operates at a lower frequency and non-SUL operates at a higher frequency—to meet specified BLER standards, transmitting signals in the non-SUL band requires higher power than transmitting signals in the SUL band. Due to the duality property of the channel, the RSRP value measured in the downlink can characterize the channel's transmission loss characteristics. Therefore, an RSRP threshold is used to select between SUL and non-SUL signal transmission.

[0094] In an exemplary embodiment, FIG7 is a flowchart of a random access method according to an exemplary embodiment of the present disclosure. As shown in FIG7 , the channel transmission method provided in this embodiment includes:

[0095] Step 1: The base station configures two-step random access to corresponding resources for both the non-SUL carrier and the SUL carrier. The base station sends an SSB signal on the downlink carrier corresponding to the non-SUL carrier, carrying two RSRP thresholds.

[0096] In step 2, the user measures the RSRP value of the SSB signal on the downlink carrier corresponding to the non-SUL carrier, and simultaneously obtains two RSRP thresholds by analysis, and sets the first RSRP threshold to be smaller than the second RSRP threshold.

[0097] Step 3: Compare the measured RSRP value with the two RSRP thresholds. If the measured RSRP value is less than the first RSRP threshold, the user sends a MsgA PRACH signal on the SUL carrier and simultaneously sends a MsgA PUSCH signal on the SUL carrier.

[0098] Step 4: If the measured RSRP value is greater than the first RSRP threshold and is less than the second RSRP threshold, the user sends a MsgA PRACH signal on the non-SUL carrier and sends a MsgA PUSCH signal on the SUL carrier.

[0099] Step 5: If the measured RSRP value is greater than the second RSRP threshold, the user sends a MsgA PRACH signal on the non-SUL carrier and simultaneously sends a MsgA PUSCH signal on the non-SUL carrier.

[0100] Through the method provided in this embodiment, users can achieve higher reception performance when sending MsgA signals on the SUL carrier, increasing the probability of successful system access. Furthermore, by selecting separate uplink carriers for MsgA PRACH and MsgA PUSCH signals, the MsgA PUSCH signal requires higher channel quality than the MsgA PRACH signal during reception and analysis, while also fully and flexibly utilizing spectrum resources.

[0101] The following examples further illustrate the solutions of the embodiments of the present disclosure:

[0102] In an exemplary embodiment, the channel sending method provided in this embodiment includes:

[0103] Step 1: The base station configures two-step random access to corresponding resources for both the non-SUL carrier and the SUL carrier. The base station sends an SSB signal on the downlink carrier corresponding to the non-SUL carrier, carrying two RSRP thresholds ξ1 and ξ2, where 0 < ξ1 < ξ2.

[0104] In step 2, the user measures the SSB signal on the downlink carrier corresponding to the non-SUL carrier to obtain the RSRP value ξ, and simultaneously analyzes and obtains two RSRP thresholds ξ1 and ξ2.

[0105] In step 3, the user learns through comparison that ξ<ξ1, and then the user sends a MsgA PRACH signal on the SUL carrier and simultaneously sends a MsgA PUSCH signal on the SUL carrier.

[0106] In an exemplary embodiment, the channel sending method provided in this embodiment includes:

[0107] Step 1: The base station configures two-step random access to corresponding resources for both the non-SUL carrier and the SUL carrier. The base station sends an SSB signal on the downlink carrier corresponding to the non-SUL carrier, carrying two RSRP thresholds ξ1 and ξ2, where 0 < ξ1 < ξ2.

[0108] In step 2, the user measures the SSB signal on the downlink carrier corresponding to the non-SUL carrier to obtain the RSRP value ξ, and simultaneously analyzes and obtains two RSRP thresholds ξ1 and ξ2.

[0109] In step 3, the user finds out through comparison that ξ1≤ξ<ξ2, and then the user sends the MsgA PRACH signal on the non-SUL carrier and sends the MsgA PUSCH signal on the SUL carrier at the same time.

[0110] In an exemplary embodiment, the channel sending method provided in this embodiment includes:

[0111] Step 1: The base station configures two-step random access to corresponding resources for both the non-SUL carrier and the SUL carrier. The base station sends an SSB signal on the downlink carrier corresponding to the non-SUL carrier, carrying two RSRP thresholds ξ1 and ξ2, where 0 < ξ1 < ξ2.

[0112] In step 2, the user measures the SSB signal on the downlink carrier corresponding to the non-SUL carrier to obtain the RSRP value ξ, and simultaneously analyzes and obtains two RSRP thresholds ξ1 and ξ2.

[0113] In step 3, the user finds out through comparison that ξ2≤ξ, and then the user sends the MsgA PRACH signal on the non-SUL carrier and sends the MsgA PUSCH signal on the non-SUL carrier at the same time.

[0114] An embodiment of the present disclosure further provides a computer-readable storage medium, in which a computer program is stored. The computer program is configured to execute the steps of any one of the above method embodiments when run.

[0115] In an exemplary embodiment, the computer-readable storage medium may include, but is not limited to, various media that can store computer programs, such as a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk, or an optical disk.

[0116] An embodiment of the present disclosure further provides an electronic device, including a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to perform the steps in any of the above method embodiments.

[0117] In an exemplary embodiment, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor, and the input / output device is connected to the processor.

[0118] For specific examples in this embodiment, reference may be made to the examples described in the above embodiments and exemplary implementation modes, and this embodiment will not be described in detail here.

[0119] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus the necessary general hardware platform, and of course it can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present disclosure is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), including a number of instructions for enabling a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in each embodiment of the present disclosure.

[0120] Obviously, those skilled in the art should understand that the modules or steps of the present disclosure described above can be implemented using a general-purpose computing device, they can be concentrated on a single computing device, or distributed across a network composed of multiple computing devices, they can be implemented using program code executable by the computing device, and thus, they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be performed in a different order than herein, or they can be fabricated into separate integrated circuit modules, or multiple modules or steps can be fabricated into a single integrated circuit module for implementation. Thus, the present disclosure is not limited to any particular combination of hardware and software.

[0121] The above description is merely an optional embodiment of the present disclosure and is not intended to limit the present disclosure. Those skilled in the art will readily appreciate that the present disclosure may be modified and varied in various ways. Any modifications, equivalent substitutions, or improvements made within the principles of the present disclosure shall be within the scope of protection of the present disclosure.

Claims

1. The random access method used with terminals involves receiving the broadcast signal transmitted by the base station on a non-supplementary uplink (non-SUL) carrier and enumerating the broadcast signal to obtain the first Reference Random Access Point (RSRP) and the second RSRP. The first RSRP is the RSRP limit at which the two-stage physical random access channel signal of message A (MsgAPRACH) is received and enumerated on the non-SUL carrier to reach the target block error rate. The second RSRP is the RSRP limit at which the two-stage physical uplink combined channel signal of message A (MsgAPUSCH) is received and enumerated on the non-SUL carrier to reach the target block error rate.

1. Measurement of the RSRP of the broadcast signal on a non-SUL carrier wave to obtain the measured RSRP and identification of the carrier waves for the MsgAPUSCH and MsgAPRACH signals separately based on the numerical relationship between the measured RSRP and the first and second RSRP thresholds.

2. The method for random access according to claim 1, where the identification of the carrier waves for the MsgAPUSCH and MsgAPRACH signals separately based on the numerical relationship between the measured RSRP and the first and second RSRP thresholds, consists of the following components: The following are methods for random access based on claims 1 or 2: Sending MsgAPUSCH and MsgAPRACH signals on the SUL carrier wave under the condition that the measured RSRP is less than the first RSRP threshold; sending MsgAPUSCH signals on the SUL carrier wave and MsgAPRACH signals on the non-SUL carrier wave under the condition that the measured RSRP is greater than the first RSRP threshold and less than the second RSRP threshold; sending MsgAPUSCH and MsgAPRACH signals on the non-SUL carrier wave under the condition that the measured RSRP is greater than the second RSRP threshold.Where the access resources of both the SUL and non-SUL carrier waves are configured with the base station before identifying the carriers for transmitting the MsgAPUSCH and MsgAPRACH signals separately based on the numerical relationship between the measured RSRP and the first and second RSRP thresholds.

4. The random access method used with the base station and incorporated with the transmission of broadcast signals to the terminal on the non-SUL carrier, where the broadcast signal is used to instruct the terminal to parse the broadcast signal to obtain the first and second RSRP thresholds, and the broadcast signal carries the first and second RSRP thresholds, the second RSRP threshold greater than the first RSRP threshold, the first RSRP threshold which is the RSRP limit at which the MsgAPRACH signal is received and parsed on the non-SUL carrier to reach the target block error rate.The broadcast signal is further configured to instruct the terminal to measure the RSRP of the broadcast signal on a non-SUL carrier wave to obtain the measured RSRP, and the broadcast signal is further configured to instruct the terminal to specify the carrier waves for transmitting the MsgAPUSCH and MsgAPRACH signals separately based on the numerical relationship between the measured RSRP and the first and second RSRP thresholds.

5. Method for random access according to claim 4.Where the MsgAPUSCH and MsgAPRACH signals are transmitted on the SUL carrier wave under the condition that the measured RSRP is less than the first RSRP threshold, or the MsgAPUSCH signal is transmitted on the SUL carrier wave and the MsgAPRACH signal is transmitted on a non-SUL carrier wave under the condition that the measured RSRP is greater than the first RSRP threshold and less than the second RSRP threshold, or the MsgAPUSCH and MsgAPRACH signals are transmitted on a non-SUL carrier wave under the condition that the measured RSRP is greater than the second RSRP threshold.

6. Method for accessing the domain under claim 4 or 5. This is further enhanced by constructing resource access configurations for both SUL and non-SUL carrier waves before identifying the carrier waves for transmitting MsgAPUSCH and MsgAPRACH signals separately based on the numerical relationship between the measured RSRP and the first and second RSRP thresholds.

7. A random access device comprising a receiving module configured to receive broadcast signals sent by the base station on the non-SUL carrier wave and parse the broadcast signal to obtain the first and second RSRP thresholds.Where the broadcast signal carries the first and second RSRP thresholds, the second RSRP threshold is greater than the first RSRP threshold, the first RSRP threshold is the RSRP limit at which the MsgAPRACH signal is received and scaled over the non-SUL carrier to reach the target block error rate, and the second RSRP threshold is the RSRP limit at which the MsgAPUSCH signal is received and scaled over the non-SUL carrier to reach the target block error rate. A measurement module is configured to measure the RSRP of the broadcast signal on the non-SUL carrier to obtain the measured RSRP, and an identification module is configured to identify the carrier for transmitting the MsgAPUSCH and MsgAPRACH signals separately based on the numerical relationship between the measured RSRP and the first and second RSRP thresholds.

8. Random Access based on claim 7.Where the identifying module is further configured to send MsgAPUSCH and MsgAPRACH signals on the SUL carrier wave when the measured RSRP is less than the first RSRP threshold, or to send MsgAPUSCH signals on the SUL carrier wave and MsgAPRACH signals on the non-SUL carrier wave when the measured RSRP is greater than the first RSRP threshold and less than the second RSRP threshold, or to send MsgAPUSCH and MsgAPRACH signals on the non-SUL carrier wave when the measured RSRP is greater than the second RSRP threshold.

9. The device For access to the group under claim 7 or 8, where access resources for both the SUL carrier and non-SUL carrier are configured with a base station prior to the carrier identification procedure for the MsgAPUSCH and MsgAPRACH signals separately based on the numerical relationship between the measured RSRP and the first and second RSRP thresholds10. A random access device comprising a transmitting module configured to transmit broadcast signals to terminals on the non-SUL carrier,Where the broadcast signal is configured to instruct the terminal to parse the broadcast signal to obtain the first and second RSRP thresholds, and the broadcast signal carries the first and second RSRP thresholds, the second RSRP threshold which is greater than the first RSRP threshold, the first RSRP threshold which is the RSRP limit at which the MsgAPRACH signal is received and parsed over the non-SUL carrier wave to reach the target block error rate, and the second RSRP threshold which is the RSRP limit at which the MsgAPUSCH signal is received and parsed over the non-SUL carrier wave to reach the target block error rate.The broadcast signal is further configured to instruct the terminal to measure the RSRP of the broadcast signal on a non-SUL carrier wave to obtain the measured RSRP, and the broadcast signal is further configured to instruct the terminal to specify the carrier waves for transmitting the MsgAPUSCH and MsgAPRACH signals separately based on the numerical relationship between the measured RSRP and the first and second RSRP thresholds.

11. Random Access Machine under Claim 10,Where the MsgAPUSCH and MsgAPRACH signals are transmitted on the SUL carrier wave under the condition that the measured RSRP is less than the first RSRP threshold, or the MsgAPUSCH signal is transmitted on the SUL carrier wave and the MsgAPRACH signal is transmitted on a non-SUL carrier wave under the condition that the measured RSRP is greater than the first RSRP threshold and less than the second RSRP threshold, or the MsgAPUSCH and MsgAPRACH signals are transmitted on a non-SUL carrier wave under the condition that the measured RSRP is greater than the second RSRP threshold.

12. Access device according to claim 1. 0 or 11, which includes an additional configuration module configured to create resource access configurations for both SUL and non-SUL carrier waves before specifying the carrier waves for transmitting MsgAPUSCH and MsgAPRACH signals separately based on the numerical relationship between the measured RSRP and the first and second RSRP thresholds.

13. A random access system comprising a base station and terminal, where the base station is configured to transmit broadcast signals to the terminal on the non-SUL carrier wave.The terminal is configured to receive broadcast signals transmitted by the base station on a non-SUL carrier wave and to segment the broadcast signal to obtain the first and second RSRP thresholds. The broadcast signal carries the first and second RSRP thresholds; the second RSRP threshold is greater than the first RSRP threshold; the first RSRP threshold is the RSRP limit at which the MsgAPRACH signal is received and segmented on the non-SUL carrier wave to reach the target block error rate; and the second RSRP threshold is the RSRP limit at which the MsgAPUSCH signal is received and segmented on the non-SUL carrier wave to reach the target block error rate.The terminal is further configured to measure the RSRP of the broadcast signal on a non-SUL carrier to obtain the measured RSRP, and the terminal is further configured to specify the carrier for transmitting the MsgAPUSCH and MsgAPRACH signals separately based on the numerical relationship between the measured RSRP and the first and second RSRP thresholds.

14. Random access system under claim 13, where the terminal is further configured to transmit the MsgAPUSCH and MsgAPRACH signals on the SUL carrier when the measured RSRP is less than the first RSRP threshold, or to transmit the MsgAPUSCH signals on the SUL carrier and the MsgAPRACH signals on a non-SUL carrier when the measured RSRP is greater than the first RSRP threshold and less than the second RSRP threshold, or to transmit the MsgAPUSCH and MsgAPRACH signals on a non-SUL carrier when the measured RSRP is greater than the second RSRP threshold.

15. Random access system under claim 13 or 14,Where a base station is configured to further construct the resource access configuration of both the SUL carrier and the non-SUL carrier before identifying the carrier for the MsgAPUSCH and MsgAPRACH signals separately based on the numerical relationship between the measured RSRP and the first and second RSRP thresholds.

16. Computer-readable storage media where computer programs are stored, where computer programs are configured to execute the methods claimed in any of the claims in Claims 1-3 or the methods claimed in any of the claims in Claims 4-6 when executed.

17. Electronic devices incorporating memory and a processor, where the memory stores computer programs and the processor is configured to execute computer programs to perform the methods claimed in any of the claims in Claims 1-3 or the methods claimed in any of the claims in Claims 4-6 when executed;

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