Random access method, apparatus, terminal and network side device

Abstract

The application discloses a random access method, device, terminal and network side equipment, and belongs to the technical field of communication; the method comprises the following steps: sending a first target message of random access; the transmission parameter of the first target message is associated with the position related information of the terminal or the first target message carries the position related information of the terminal; in the embodiment of the application, the terminal explicitly indicates or implicitly indicates the position related information of the terminal through the first target message of random access; therefore, the network side can adjust the node and / or beam related information of the second target message according to the position related information of the terminal, reduces the potential inter-node interference, and can improve the reception signal quality of the second target message.

Description

Technical Field

[0001] This application belongs to the field of communication technology, specifically relating to a random access method, apparatus, terminal, and network-side equipment. Background Technology

[0002] In traditional cell-based systems, each cell has a specific coverage area, and the downlink or uplink signals when a terminal communicates with that cell are associated with that cell's information (such as cell ID) or configuration parameters. When a terminal moves between different cells, it needs to perform inter-cell handover or cell reselection. Terminals at the cell edge are often subject to interference from neighboring cells (inter-cell interference).

[0003] The concept of cell-free systems abandons the cell-based approach. In this system, the system consists of many access points (APs) or transmission reception points (TRPs), and the terminal communicates simultaneously with one or more neighboring APs or TRPs. When the terminal moves between APs or TRPs, its serving AP or TRP changes. In this case, there is no inter-cell handover or cell reselection. Typically, a terminal is not subject to strong interference from neighboring APs or TRPs (because the N APs or TRPs adjacent to the terminal usually serve as its serving AP or TRP, where N is greater than or equal to 1).

[0004] In traditional cell-based systems, during random access, the terminal needs to determine a random access opportunity based on a synchronization block index where the measured received reference signal power of the serving cell is greater than a target value, and sends Message 1 (MSG 1). The network-side equipment determines the corresponding synchronization block index based on the information received from MSG 1, and can then send Message 2 (MSG 2) based on this determined synchronization block index.

[0005] Since the concept of cell-free abandons the idea of ​​cells, the existing random access procedures are no longer applicable to cell-free systems. Summary of the Invention

[0006] This application provides a random access method, apparatus, terminal, and network-side device, which can solve the problem that existing cell-based random access methods cannot be applied to random access of terminals in cellless systems.

[0007] In a first aspect, embodiments of this application provide a random access method, including:

[0008] The terminal sends a first target message for random access, wherein the transmission parameters of the first target message are associated with the location-related information of the terminal or the first target message carries the location-related information of the terminal;

[0009] The transmission parameters of the first target message include at least one of the following:

[0010] The sequence information of the first target message;

[0011] Temporal resource information of the first target message;

[0012] Frequency domain resource information of the first target message;

[0013] The first target message contains sequence information of the demodulation reference signal.

[0014] Secondly, embodiments of this application provide a random access device applied to a terminal, comprising:

[0015] The first sending module is used to send a first target message for random access, wherein the transmission parameters of the first target message are associated with the location-related information of the terminal or the first target message carries the location-related information of the terminal;

[0016] The transmission parameters of the first target message include at least one of the following:

[0017] The sequence information of the first target message;

[0018] Temporal resource information of the first target message;

[0019] Frequency domain resource information of the first target message;

[0020] The first target message contains sequence information of the demodulation reference signal.

[0021] Thirdly, embodiments of this application provide a random access method, including:

[0022] The network-side device receives the first target message for random access;

[0023] The network-side device obtains the transmission parameters of the first target message of random access or the location-related information of the terminal carried in the first target message of random access; the transmission parameters of the first target message are associated with the location-related information of the terminal;

[0024] The transmission parameters of the first target message include at least one of the following:

[0025] The sequence information of the first target message;

[0026] Temporal resource information of the first target message;

[0027] Frequency domain resource information of the first target message;

[0028] The first target message contains sequence information of the demodulation reference signal.

[0029] Fourthly, embodiments of this application provide a random access device, applied to network-side equipment, comprising:

[0030] The first receiving module is used to receive the first target message from random access;

[0031] The first acquisition module is used to acquire the transmission parameters of the first target message of random access or the location-related information of the terminal carried in the first target message of random access; the transmission parameters of the first target message are associated with the location-related information of the terminal.

[0032] The transmission parameters of the first target message include at least one of the following:

[0033] The sequence information of the first target message;

[0034] Temporal resource information of the first target message;

[0035] Frequency domain resource information of the first target message;

[0036] The first target message contains sequence information of the demodulation reference signal.

[0037] Fifthly, embodiments of this application provide a terminal, which includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method described in the first aspect.

[0038] In a sixth aspect, embodiments of this application provide a network-side device, which includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor. When the program or instructions are executed by the processor, they implement the steps of the method described in the third aspect.

[0039] In a seventh aspect, embodiments of this application provide a readable storage medium on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or implement the steps of the method described in the third aspect.

[0040] Eighthly, embodiments of this application provide a chip, the chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor being used to run network-side device programs or instructions to implement the method as described in the first aspect, or to implement the method as described in the third aspect.

[0041] In this embodiment, the terminal explicitly or implicitly indicates the terminal's location-related information through a randomly accessed first target message. The network-side device can then adjust the node and / or beam-related information for sending the second target message based on the terminal's location-related information, thereby reducing potential inter-node interference and improving the received signal quality of the second target message. Attached Figure Description

[0042] Figure 1 A block diagram illustrating a wireless communication system to which embodiments of this application may be applied;

[0043] Figure 2 This diagram illustrates one of the steps of the random access method provided in this application embodiment.

[0044] Figure 3 This is the second schematic diagram illustrating the steps of the random access method provided in the embodiments of this application;

[0045] Figure 4 This is a schematic diagram of one of the structures of the random access device provided in the embodiments of this application;

[0046] Figure 5 This is a second schematic diagram illustrating the structure of the random access device provided in the embodiments of this application;

[0047] Figure 6 This is a schematic diagram of the structure of the communication device provided in the embodiments of this application;

[0048] Figure 7 This is a schematic diagram of the structure of the terminal provided in the embodiments of this application;

[0049] Figure 8 This is a schematic diagram illustrating the structure of the network-side device provided in the embodiments of this application. Detailed Implementation

[0050] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0051] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0052] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and the term NR is used in most of the following description; however, these technologies can also be applied to applications other than NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0053] Figure 1This diagram illustrates a block diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can also be referred to as a terminal device or user equipment (UE). The terminal 11 can be a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), wearable device, vehicle-mounted device (VUE), pedestrian terminal (PUE), etc. Wearable devices include wristbands, headphones, glasses, etc. It should be noted that this application does not limit the specific type of terminal 11. Network-side device 12 can be a base station or a core network. The base station can be referred to as a node B, evolved node B, access point, base transceiver station (BTS), radio base station, radio transceiver, basic service set (BSS), extended service set (ESS), B node, evolved B node (eNB), home B node, home evolved B node, WLAN access point, WiFi node, transmitting and receiving point (TRP), or any other suitable term in the field, as long as the same technical effect is achieved. The base station is not limited to specific technical terms. It should be noted that in this embodiment of the application, only the base station in the NR system is used as an example, but the specific type of base station is not limited.

[0054] The random access method, apparatus, terminal, and network-side equipment provided in this application will be described in detail below with reference to the accompanying drawings and through specific embodiments and application scenarios.

[0055] like Figure 2 As shown, at least one embodiment of this application provides a random access method, including:

[0056] Step 201: The terminal sends a first target message for random access, wherein the transmission parameters of the first target message are associated with the location-related information of the terminal, or the first target message carries the location-related information of the terminal.

[0057] The transmission parameters of the first target message include at least one of the following:

[0058] The sequence information of the first target message;

[0059] Temporal resource information of the first target message;

[0060] Frequency domain resource information of the first target message;

[0061] The first target message contains sequence information of the demodulation reference signal DMRS.

[0062] It should be noted that the first target message can be message 1 (also known as MSG 1) or message 3 (i.e., MSG 3).

[0063] For example, when the first target message is MSG 1, the transmission parameters of MSG 1 include at least one of the following: the sequence information of MSG 1, the time-domain resource information of MSG 1, and the frequency-domain resource information of MSG 1. The association between the transmission parameters of MSG 1 and the terminal's location-related information means that the terminal implicitly indicates its location-related information through the transmission parameters of MSG 1.

[0064] The sequence information of MSG 1 includes a preamble index or preamble ID; wherein the preamble index or ID is associated with the preamble sequence format (e.g., sequence length, subcarrier spacing, and at least one item in the root sequence). The correspondence between the preamble index or ID and the sequence information is predefined or configured by the base station; alternatively, some relevant parameters of the correspondence between the preamble index or ID and the sequence information are configured by the base station, and the relevant rules or calculation formulas for this correspondence are predefined.

[0065] For example, when the first target message is MSG 3, the transmission parameters of MSG 3 include the sequence information of the DMRS of MSG 3. This DMRS sequence information includes at least one of the following: sequence identifier, scrambling sequence, initialization sequence, cyclic shift of the sequence, and orthogonal overlay code. The association between the transmission parameters of MSG 3 and the terminal's location-related information means that the terminal implicitly indicates its location-related information through the transmission parameters of MSG 3.

[0066] In at least one embodiment of this application, after the terminal sends a first target message for random access, the method further includes:

[0067] The terminal receives a second target message for random access sent by at least one first node; the transmission information of the second target message is associated with the transmission parameters of the first target message, or the transmission information of the second target message is associated with the location information of the terminal.

[0068] The transmission-related information of the second target message includes at least one of the following: identification information of the at least one first node; and beam-related information of the second target message. The first node can be an Access Point (AP) or a Transmitter / Receiver Point (TRP), and is not specifically limited here.

[0069] It should be noted that the beam-related information mentioned in the embodiments of this application includes at least one of the following: beam direction, quasi-co-location (QCL) information, and transmission configuration index (TCI) status information; these will not be repeated hereafter.

[0070] In this embodiment, the network-side device determines the node or beam-related information for sending the second target message based on the terminal location information implicitly or explicitly indicated by the first target message, thereby reducing potential inter-node interference and improving the received signal quality of the second target message.

[0071] As an optional embodiment, the first target message includes: message 1 (MSG1) in the four-step random access process, and the second target message includes: at least one of message 2 (MSG 2) and message 4 (MSG 4) in the four-step random access process;

[0072] Alternatively, as another optional embodiment, the first target message includes: message 3 (MSG 3) in four-step random access; the second target message includes: message 4 (MSG 4) in four-step random access.

[0073] Since at least one embodiment of this application needs to explicitly or implicitly indicate the location-related information of the terminal through a first target message, in at least one embodiment of this application, before step 201, the method includes:

[0074] The location-related information of the terminal is determined by measuring N1 first signals; where N1 is an integer greater than or equal to 1.

[0075] It should be noted that the first signal mentioned in the embodiments of this application includes at least one of the following: Synchronization Signal and PBCH block (SSB); Channel State Information Reference Signal (CSI-RS); Tracking Reference Signal (TRS); Positioning Reference Signals (PRS); and other downlink reference signals; which will not be repeated hereafter.

[0076] Optionally, the N1 first signals can be signals from the same cell or signals from different cells (such as serving cell and neighboring cells). Alternatively, in a cell-free scenario, the N1 first signals can be sent through the same or different nodes (e.g., the N1 SSBs are associated with different nodes).

[0077] Optionally, the sync rasters of the N1 first signals are different.

[0078] Optionally, the frequency domain resources (e.g., carrier or resource block, RB) and / or time domain resources of the N1 first signals are different.

[0079] Optionally, the N1 first signals may have different sequence formats.

[0080] Optionally, the reference signal received power (RSRP), signal to interference plus noise ratio (SINR), and reference signal received quality (RSRQ) of the N1 first signals are all greater than or equal to a first threshold, and / or the difference between RSRP, SINR, and RSRQ of the N1 first signals is less than or equal to a second threshold; wherein the first and second thresholds are notified to the terminal by the network-side device through system messages.

[0081] Optionally, the terminal's location-related information may be obtained through one or more of the following: Global Navigation Satellite System (GNSS), Radio Frequency Identification (RFID), Ultra Wide Band (UWB), Bluetooth, Wi-Fi, network-based positioning technology (i.e., the terminal determines its location-related information based on the information of N1 (N>=1) first signals detected), or other related positioning technologies.

[0082] As another optional embodiment, the location-related information of the terminal includes:

[0083] The location information of the terminal;

[0084] The measurements obtained by the terminal that are related to the terminal's location can also be called incomplete information. The network-side device can obtain the terminal's location information based on this incomplete information and other information (such as the location of the base station).

[0085] For example, the location information of the terminal includes at least one of the following:

[0086] A two-dimensional grid in two-dimensional coordinates based on a certain origin, or a three-dimensional grid in three-dimensional coordinates;

[0087] A sub-region in polar coordinates based on a certain origin; wherein, the format of the location information (e.g., the size of the grid, the size of the sub-region in polar coordinates, the selection of the origin, etc., at least one of which) is sent from the base station to the terminal, or is agreed upon by the protocol;

[0088] Absolute latitude and longitude information;

[0089] Relative position information, relative to a reference point, or relative position information of the previously reported position information;

[0090] Location change indication information;

[0091] Location area change indication information;

[0092] Location quality information.

[0093] For example, the measurements related to the terminal's location obtained by the terminal measurement include at least one of the following:

[0094] Angle of arrival (and beam-related information) of different first signals;

[0095] RSRP different from the first signal;

[0096] The time delay between different first signals.

[0097] In at least one optional embodiment of this application, the method further includes:

[0098] Based on the location-related information of the terminal, the transmission parameters of the first target message associated with the location-related information are determined; for example, the transmission parameters of MSG 1 are determined based on the location-related information of the terminal; and for another example, the scrambling sequence of DMRS for MSG 3 is determined based on the location-related information of the terminal.

[0099] Accordingly, step 201 includes:

[0100] The first target message is sent according to the determined transmission parameters.

[0101] For example, the terminal determines the transmission parameters of MSG 1 based on the aforementioned location-related information and the first mapping relationship. The first mapping relationship defines the correspondence between location-related information and the transmission parameters of MSG1; such as the mapping relationship between different location regions and different MSG1 sequence formats, time-domain resources, and frequency-domain resources; the first mapping relationship is defined by the protocol or configured by the base station, or some parameters of the first mapping relationship are configured by the base station and the relevant rules or calculation formulas of the first mapping relationship are defined by the protocol.

[0102] Table 1 shows the relationship between the transmission parameters of MSG 1 and the location-related information of the terminal.

[0103] Table 1

[0104]

[0105] Each {preamble index, preamble time-domain resource, preamble frequency-domain resource} combination can include multiple combinations of values ​​for the preamble index, preamble time-domain resource, and preamble frequency-domain resource. The terminal can select one combination of values ​​for the {preamble index, preamble time-domain resource, preamble frequency-domain resource} to send.

[0106] For example, it specifically includes two methods:

[0107] Method 1: The terminal determines the random access opportunity (RACH Occasion, RO) associated with the location information based on the location information or other measurement information, and then selects a preamble from all preambles of the RO, for example, randomly selecting a preamble; where RO is defined as the time domain resources and frequency domain resources of one MSG1 transmission.

[0108] Method 2: The terminal determines the RO associated with the location information and the preamble candidate set based on the location information or other measurement information, and then selects a preamble from the preamble candidate set, for example, by randomly selecting a preamble.

[0109] As another optional embodiment, if the first target message is MSG 1, before step 201, the method further includes:

[0110] Based on the measured reference signal received power (RSRP) of N2 first signals and at least one of N2 path losses, determine the transmit power of the first target message and at least one of the transmit carrier; wherein, N2 is an integer greater than or equal to 1; the N2 path losses are related to the RSRP of the N2 first signals; since the first signal is transmitted by multiple nodes, the transmit power of MSG 1 takes into account the path loss from multiple nodes to the terminal;

[0111] For example, the real values ​​of the N2 path losses are summed to obtain a sum, and then the target reference path loss is obtained by taking the log of the sum with base 10. The transmit power is then calculated based on the target reference path loss.

[0112] Accordingly, step 201 includes:

[0113] The first target message is transmitted according to at least one of the determined first target message's transmit power and transmit carrier.

[0114] If the terminal is configured with multiple uplink carriers (e.g., one high-frequency carrier and one low-frequency carrier) as optional carriers for transmitting MSG 1, if the RSRP / SINR / RSRQ of the N2 first signals are all less than the third threshold or the sum of the RSRP / SINR / RSRQ of the N2 first signals is less than the third threshold, then the terminal transmits MSG 1 through the target carrier (e.g., a carrier with a lower frequency); otherwise, it transmits MSG 1 through another carrier (e.g., a carrier with a higher frequency).

[0115] It should be noted that when considering the transmit power of MSG 1, if MSG 1 is a retransmission, the transmit power of the retransmission will be increased according to the number of retransmissions; if the SSB index is changed during the retransmission of MSG 1, no power increase will be performed.

[0116] Optionally, the method for determining the beam for the terminal to send MSG1 is as follows: If it is FR2, MSG1 needs to be sent to the two nodes respectively through the two beams of one panel or the two beams of two panels.

[0117] In at least one embodiment of this application, when the first target message is message 1 and the second target message is message 2, message 2 includes at least one of the following:

[0118] The identifier information of the sending node for message 4;

[0119] Message 4 contains information related to the transmission beam;

[0120] Time-domain resource information for message 4;

[0121] Frequency domain resource information for message 4.

[0122] The terminal uses the relevant information of message 4 carried in message 2 to receive message 4; wherein, message 2 is also used to indicate the time-frequency domain resources and transmission format of message 3.

[0123] As an optional embodiment, receiving a second target message for random access sent by at least one first node includes:

[0124] Based on target beam information, receive at least one second target message for random access sent by a first node;

[0125] Wherein, when the second target message is message 2, the target beam-related information is the beam-related information of at least one of the N3 first signals with the largest signal strength measured by the terminal;

[0126] Alternatively, when the second target message is message 4, the target beam-related information is the beam-related information of message 2.

[0127] As an optional embodiment, before receiving a second target message for random access sent by at least one first node, the method further includes:

[0128] The terminal receives a first signal sent by the at least one first node; the first signal is used to assist the terminal in receiving the second target message.

[0129] The receiving of a second target message for random access sent by at least one first node includes:

[0130] Based on the beam-related information of the first signal transmitted by the at least one first node, a second target message for random access transmitted by the at least one first node is received. The DMRS of the second target message and the quasi-co-address of the first signal are also present.

[0131] In other words, if the terminal detects at least one first signal transmitted by a first node before receiving MSG 2 or MSG 4, the terminal assumes that the DMRS of MSG 2 or MSG 4 is quasi-co-located with the first signal. Alternatively, if the terminal does not detect at least one first signal transmitted by a first node before receiving MSG 2, the terminal assumes that the DMRS of MSG 2 is quasi-co-located with the first signal with the strongest previously detected signal strength; or, if the terminal does not detect at least one first signal transmitted by a first node before receiving MSG 4, the terminal assumes that the DMRS of MSG 4 is quasi-co-located with the DMRS of MSG 2.

[0132] If the terminal directly carries the terminal's location-related information in the first target message, as an optional embodiment, the second target message may also include: the terminal's location-related information.

[0133] Optionally, after receiving the second target message for random access sent by at least one first node, the method further includes:

[0134] If the terminal location information carried in the second target message is the same as the terminal location information carried in the first target message, it is determined that the terminal has successfully received the second target message.

[0135] or,

[0136] If the second target message does not carry location-related information of the terminal, or if the location-related information of the terminal carried in the second target message is different from the location-related information of the terminal carried in the first target message, the first target message is retransmitted. For example, when the terminal retransmits MSG 1, the transmission format of the retransmitted MSG 1 is the same as the original transmission format; the transmission power of the retransmitted MSG 1 is higher than the transmission power of the original transmission.

[0137] It should be noted that if the second target message is MSG 2, MSG 2 also carries a preamble index. To determine whether the terminal has successfully received MSG 2, in addition to the aforementioned location-related information checks, it is also necessary to check whether the preamble index in MSG 2 is the same as the preamble index in MSG 1. For example, if the preamble index in MSG 2 is the same as the preamble index in MSG 1, and the terminal's location-related information carried in MSG 2 is the same as that carried in MSG 1, then the terminal has successfully received MSG 2, and at this point, the terminal stops listening for MSG 2.

[0138] Continuing with the previous example, when the first target message is message 1 (MSG 1) and the second target message is message 2 (MSG 2), after the terminal successfully receives MSG 2, the method further includes:

[0139] Send message 3 to one of the target nodes in the at least one first node; use message 3 to implicitly or explicitly indicate that the terminal has successfully received the sending-related information corresponding to message 2;

[0140] Receive message 4 sent by the target node; wherein the beam-related information of message 4 is the same as the beam-related information of message 2; or, the beam-related information of message 4 is the same as the beam-related information carried in message 3.

[0141] If the terminal successfully receives an MSG2, and the preamble index and location-related information carried in MSG2 are the same as those sent by the terminal, then the terminal sends MSG3. MSG3 implicitly (e.g., through a scrambling sequence of DMRS) or explicitly (e.g., through bits of MSG3) indicates the node information and / or beam-related information corresponding to the successfully received MSG2. The terminal can expect to receive N4 MSG2s, and select one of them to respond to based on signal strength or other criteria (i.e., send MSG3); based on the selected MSG2, it determines the beam-related information to receive MSG4 (i.e., the selected MSG2 and MSG4 are quasi-co-located).

[0142] As another optional embodiment, when the first target message is message 3 and the second target message is message 4, the method further includes:

[0143] Before sending message 3, send a reference signal associated with the terminal identifier;

[0144] Alternatively, after sending message 3, send a reference signal associated with the terminal identifier;

[0145] Alternatively, a reference signal associated with the terminal identifier may be sent on at least one symbol in the time slot where message 3 is located.

[0146] For example, the reference signal is a Sounding Reference Signal (SRS). The association rule between this reference signal and the terminal identifier is predefined. The network-side device can calculate the terminal's location based on the SRS received by multiple nodes; the network-side device further determines the transmission information related to MSG 4 corresponding to the terminal's location, and sends MSG 4 using the determined transmission information.

[0147] It should be noted that if the SRS is sent before or after message 3, the time-frequency domain resources of the SRS are notified to the terminal by the base station through MSG 2; if the SRS is sent on at least one symbol of the time slot in which message 3 is located, the time-frequency domain resources of the SRS are the same as those of message 3.

[0148] As an optional embodiment, before step 201, the method further includes:

[0149] Receive a first signaling message, the first signaling message including at least one of the following:

[0150] Identification information for at least two residential communities;

[0151] Identification information for at least two nodes;

[0152] Location information for at least two residential areas;

[0153] Location information of at least two nodes;

[0154] Information about the first signal associated with each cell;

[0155] Information about the first signal associated with each node.

[0156] In other words, before sending MSG 1, the terminal receives at least one of the following from the base station via a first signaling (e.g., System Information Block (SIB) signaling): information about multiple cells or nodes (e.g., ID information), their location information (which may be encrypted), and information about the first signal associated with each of them (e.g., signal sequence information, signal time-frequency resources, etc.); wherein the SIB signaling is an SIB sent by a cell or a node, or an SIB sent via SFN (Single Frequency Network).

[0157] As another optional embodiment, prior to step 201, the method further includes:

[0158] The system receives a second signaling message, which indicates resource information for a shared random access channel corresponding to at least two cells or at least two nodes. This resource information includes at least one of time-domain resource information, frequency-domain resource information, and sequence resource information.

[0159] In other words, before sending MSG 1, the terminal receives the Random Access Channel (RACH) resources indicated by the base station through a second signaling (e.g., SIB). For example, in a cell-free scenario, the second signaling includes information about shared RACH resources corresponding to multiple surrounding nodes; wherein, the SIB is an SIB sent by a cell or a node, or an SIB sent through an SFN (Single Frequency Network).

[0160] For example, a base station can broadcast multiple frequency points of RACH resources via SIB, and a terminal can select one frequency point from multiple frequency points for RACH transmission, such as selecting a frequency point for RACH transmission based on the measured SSB RSRP value.

[0161] In summary, in the embodiments of this application, the terminal explicitly or implicitly indicates the location-related information of the terminal through the first target message that is randomly accessed. Then, the network side can adjust the node and / or beam-related information that send the second target message according to the location-related information of the terminal, reduce potential inter-node interference, and improve the received signal quality of the second target message.

[0162] like Figure 3 As shown, at least one embodiment of this application also provides a random access method, including:

[0163] Step 301: The network-side device receives the first target message for random access;

[0164] Step 302: The network-side device obtains the transmission parameters of the first target message of random access or the location-related information of the terminal carried in the first target message of random access; the transmission parameters of the first target message are associated with the location-related information of the terminal.

[0165] The transmission parameters of the first target message include at least one of the following:

[0166] The sequence information of the first target message;

[0167] Temporal resource information of the first target message;

[0168] Frequency domain resource information of the first target message;

[0169] The first target message contains sequence information of the demodulation reference signal.

[0170] It should be noted that the network-side device can be an AP, a TRP, or a central control unit; the central control unit can be set on a certain AP or a certain TRP, or set in other locations on the network side, without specific limitations.

[0171] It should be noted that the first target message can be message 1 (also known as MSG 1) or message 3 (i.e., MSG 3).

[0172] For example, when the first target message is MSG 1, the transmission parameters of MSG 1 include at least one of the following: the sequence information of MSG 1, the time-domain resource information of MSG 1, and the frequency-domain resource information of MSG 1. The association between the transmission parameters of MSG 1 and the terminal's location-related information means that the terminal implicitly indicates its location-related information through the transmission parameters of MSG 1.

[0173] The sequence information of MSG 1 includes a preamble index or a preamble ID. The preamble index or ID is associated with the preamble sequence format (e.g., sequence length, subcarrier spacing, and at least one item in the root sequence). The correspondence between the preamble index or ID and the sequence information is predefined or configured by the base station; alternatively, some relevant parameters of the correspondence between the preamble index or ID and the sequence information are configured by the base station, and the relevant rules or calculation formulas for this correspondence are predefined.

[0174] For example, when the first target message is MSG 3, the transmission parameters of MSG 3 include the sequence information of the DMRS of MSG 3. This DMRS sequence information includes at least one of the following: sequence identifier, scrambling sequence, initialization sequence, cyclic shift of the sequence, and orthogonal overlay code. The association between the transmission parameters of MSG 3 and the terminal's location-related information means that the terminal implicitly indicates its location-related information through the transmission parameters of MSG 3.

[0175] In at least one embodiment of this application, the method further includes:

[0176] The network-side device determines the transmission-related information of the randomly accessed second target message based on the transmission parameters of the first target message or the location-related information of the terminal; the transmission-related information of the second target message includes at least one of the following: the identification information of at least one first node sending the second target message; the beam-related information of the second target message;

[0177] The network-side device sends the second target message through at least one first node based on the transmission information of the second target message. The first node can be an access point (AP) or a transceiver point (TRP), and is not specifically limited here.

[0178] It should be noted that the beam-related information mentioned in the embodiments of this application includes at least one of the following: beam direction, quasi-co-location (QCL) information, and transmission configuration index (TCI) status information; these will not be repeated hereafter.

[0179] In this embodiment, the network-side device determines the node or beam-related information for sending the second target message based on the terminal location information implicitly or explicitly indicated by the first target message, thereby reducing potential inter-node interference and improving the received signal quality of the second target message.

[0180] As an optional embodiment, the first target message includes: message 1 (MSG1) in the four-step random access process, and the second target message includes: at least one of message 2 (MSG 2) and message 4 (MSG 4) in the four-step random access process;

[0181] Alternatively, as another optional embodiment, the first target message includes: message 3 (MSG 3) in four-step random access; the second target message includes: message 4 (MSG 4) in four-step random access.

[0182] As an optional embodiment, the transmission-related information of the randomly accessed second target message is determined based on the transmission parameters of the first target message, including:

[0183] Based on the transmission parameters of the first target message, determine the transmission-related information associated with the transmission parameters of the first target message;

[0184] The transmission-related information associated with the transmission parameters of the first target message is determined to be the transmission-related information of the second target message.

[0185] For example, when the second target message is MSG 2, the association table of the transmission parameters of MSG 1 and the transmission-related information of MSG 2 is shown in Table 2.

[0186] Table 2

[0187]

[0188] For example, when the second target message is MSG 2, the association table of the transmission parameters of MSG 1 and the transmission-related information of MSG 2 is shown in Table 3.

[0189] Table 3

[0190]

[0191] For example, when the second target message is MSG 2, the association table of the transmission parameters of MSG 1 and the transmission-related information of MSG 2 is shown in Table 4.

[0192] Table 4

[0193]

[0194] As another optional embodiment, the location-related information of the terminal includes:

[0195] The location information of the terminal;

[0196] The measurements obtained by the terminal that are related to the terminal's location can also be called incomplete information. The network-side device can obtain the terminal's location information based on this incomplete information and other information (such as the location of the base station).

[0197] For example, the location information of the terminal includes at least one of the following:

[0198] A two-dimensional grid in two-dimensional coordinates based on a certain origin, or a three-dimensional grid in three-dimensional coordinates;

[0199] A sub-region in polar coordinates based on a certain origin; wherein, the format of the location information (e.g., the size of the grid, the size of the sub-region in polar coordinates, the selection of the origin, etc., at least one of which) is sent from the base station to the terminal, or is agreed upon by the protocol;

[0200] Absolute latitude and longitude information;

[0201] Relative position information, relative to a reference point, or relative position information of the previously reported position information;

[0202] Location change indication information;

[0203] Location area change indication information;

[0204] Location quality information.

[0205] For example, the measurements related to the terminal's location obtained by the terminal measurement include at least one of the following:

[0206] Angle of arrival (and beam-related information) of different first signals;

[0207] RSRP different from the first signal;

[0208] The time delay between different first signals.

[0209] Accordingly, based on the location-related information of the terminal, the transmission-related information of the randomly accessed second target message is determined, including:

[0210] Based on the location-related information of the terminal, determine the transmission-related information associated with the terminal's location;

[0211] The transmission-related information associated with the terminal location is determined to be the transmission-related information of the second target message.

[0212] For example, the association table of terminal location and the transmission information of the second target message (MSG 2 or MSG 4) is shown in Table 5.

[0213] Table 5

[0214] Terminal location information Beam-related information for sending the second target message Position 1 Beam 1 of Cell 1 (e.g., with SSB1 QCL) Position 2 Beam 2 of Cell 1 (with SSB2 QCL) Position 3 Beam 3 of Cell 1 (with SSB3 QCL) Position 4 Beam 4 of Cell 1 (with SSB4 QCL)

[0215] For example, Table 6 shows the association table between the terminal location and the transmission information of the second target message (MSG 2 or MSG 4).

[0216] Table 6

[0217] Terminal location information AP / TRP information for sending the second target message Position 1 AP / TRP 1 Position 2 AP / TRP 1, AP / TRP 2 Position 3 AP / TRP 2 Position 4 AP / TRP 3

[0218] For example, Table 7 shows the association table between the terminal location and the transmission information of the second target message (MSG 2 or MSG 4).

[0219] Table 7

[0220]

[0221]

[0222] In at least one embodiment of this application, when the first target message is message 1 and the second target message is message 2, message 2 includes at least one of the following:

[0223] The identifier information of the sending node for message 4;

[0224] Message 4 contains information related to the transmission beam;

[0225] Time-domain resource information for message 4;

[0226] Frequency domain resource information for message 4.

[0227] The terminal uses the relevant information of message 4 carried in message 2 to receive message 4; wherein, message 2 is also used to indicate the time-frequency domain resources and transmission format of message 3.

[0228] As an optional embodiment, before sending the second target message through at least one first node based on the sending information related to the second target message, the method further includes:

[0229] A first signal is transmitted through at least one first node; this first signal is used to assist the terminal in receiving a second target message; wherein the beam-related information of the first signal is the same as the beam-related information of the second target message. For example, the DMRS of the second target message and the first signal are quasi-co-located.

[0230] If the terminal directly carries the terminal's location-related information in the first target message, as an optional embodiment, the second target message may also include: the terminal's location-related information.

[0231] As an optional embodiment, when the first target message is message 3 and the second target message is message 4,

[0232] Before sending the second target message through at least one first node based on the sending information related to the second target message, the method further includes:

[0233] The network-side device receives a reference signal associated with the terminal identifier sent by the terminal through at least two nodes, and determines the terminal location;

[0234] A second target message is sent based on the sending-related information associated with the terminal location.

[0235] For example, the terminal sends a reference signal associated with its terminal identifier before sending message 3; or, the terminal sends a reference signal associated with its terminal identifier after sending message 3; or, the terminal sends a reference signal associated with its terminal identifier on at least one symbol of the time slot where message 3 is located. For example, this reference signal is a Sounding Reference Signal (SRS). The association rule between this reference signal and the terminal identifier is predefined. The network-side device can calculate the terminal's location based on the SRS received by multiple nodes; the network-side device further determines the transmission information related to MSG 4 corresponding to the terminal's location, and sends MSG 4 using the determined transmission information related to MSG 4.

[0236] It should be noted that if the SRS is sent before or after message 3, the time-frequency domain resources of the SRS are notified to the terminal by the base station through MSG 2; if the SRS is sent on at least one symbol of the time slot in which message 3 is located, the time-frequency domain resources of the SRS are the same as those of message 3.

[0237] As an optional embodiment, step 301, the method further includes:

[0238] Send a first signaling message to the terminal, the first signaling message including at least one of the following:

[0239] Identification information for at least two residential communities;

[0240] Identification information for at least two nodes;

[0241] Location information for at least two residential areas;

[0242] Location information of at least two nodes;

[0243] Information about the first signal associated with each cell;

[0244] Information about the first signal associated with each node.

[0245] In other words, before sending MSG 1, the terminal receives at least one of the following from the base station via a first signaling (e.g., System Information Block (SIB) signaling): information about multiple cells or nodes (e.g., ID information), their location information (which may be encrypted), and information about the first signal associated with each of them (e.g., signal sequence information, signal time-frequency resources, etc.); wherein the SIB signaling is an SIB sent by a cell or a node, or an SIB sent via SFN (Single Frequency Network).

[0246] As another optional embodiment, prior to step 301, the method further includes:

[0247] A second signaling message is sent to the terminal, the second signaling message being used to indicate resource information of a shared random access channel corresponding to at least two cells or at least two nodes. This resource information includes at least one of time-domain resource information, frequency-domain resource information, and sequence resource information.

[0248] In other words, before sending MSG 1, the terminal receives the Random Access Channel (RACH) resources indicated by the base station through a second signaling (e.g., SIB). For example, in a cell-free scenario, the second signaling includes information about shared RACH resources corresponding to multiple surrounding nodes; wherein, the SIB is an SIB sent by a cell or a node, or an SIB sent through an SFN (Single Frequency Network).

[0249] For example, a base station can broadcast multiple frequency points of RACH resources via SIB, and a terminal can select one frequency point from multiple frequency points for RACH transmission, such as selecting a frequency point for RACH transmission based on the measured SSB RSRP value.

[0250] In summary, in the embodiments of this application, the terminal explicitly or implicitly indicates the location-related information of the terminal through the first target message that is randomly accessed. Then, the network side can adjust the node and / or beam-related information that send the second target message according to the location-related information of the terminal, reduce potential inter-node interference, and improve the received signal quality of the second target message.

[0251] To more clearly describe the random access method provided in the embodiments of this application, the following description uses two examples to illustrate the random access method.

[0252] Example 1: If the terminal explicitly or implicitly indicates its location-related information via MSG 1, the network-side device will determine the transmission-related information for sending MSG 2 and MSG 4 based on the location-related information.

[0253] 1) The terminal determines its own location-related information;

[0254] 2) The terminal determines the transmission parameters of MSG 1 based on the above location-related information; the location-related information has a first mapping relationship with MSG 1, as shown in Table 1.

[0255] 3) The terminal sends MSG 1 according to the determined transmission parameters of MSG 1.

[0256] 4) The base station receives MSG 1 sent by the terminal.

[0257] 5) The base station determines the transmission information of MSG 2 based on the transmission parameters of MSG 1 or the location-related information carried by MSG 1, as well as any one of the tables in Tables 2-7; Tables 2-7 can be obtained based on artificial intelligence or big data training.

[0258] 6) The base station sends MSG 2 to the terminal using the relevant information determined in 5).

[0259] Alternatively, prior to 6), the base station sends an SSB or TRS to the terminal (to assist the terminal in receiving MSG 2) using the transmission-related information determined in 5); wherein the SSB or TRS is quasi-co-located with the DMRS of MSG 2 in 6).

[0260] 7) The terminal receives MSG 2 sent by the base station; if the terminal detects the SSB or TRS sent by the base station before receiving MSG2, the terminal assumes that the DMRS of MSG2 is quasi-co-located with the detected SSB or TRS; or, the terminal assumes that the DMRS of MSG2 is quasi-co-located with the strongest SSB or downlink reference signal detected when determining the location-related information in 1).

[0261] 8) If the terminal successfully receives an MSG 2, and the preamble index in the MSG 2 is the same as the preamble index sent by the terminal, and the location-related information carried in the MSG 2 is the same as the location-related information determined by the terminal in step 1, then the terminal considers the MSG 2 to have been successfully received, and can stop listening to MSG 2 at this time; if the terminal does not receive MSG 2, or receives MSG 2 but MSG 2 does not carry the terminal's preamble index or location-related information, then the terminal retransmits MSG 1.

[0262] 9) If the terminal successfully receives an MSG 2, and the preamble index and location-related information carried in the MSG 2 are the same as the preamble index and location-related information determined by the terminal, then the terminal sends MSG 3.

[0263] The terminal can expect to receive multiple MSG 2s, and select one of the MSG 2s to respond to based on signal strength or other criteria (i.e., send MSG 3); and decide to receive the quasi-co-address information of MSG 4 based on the selected MSG 2 (i.e., the selected MSG 2 and MSG 4 are quasi-co-addressed).

[0264] 10) If the base station successfully receives MSG 3, it sends MSG 4. The DMRS of MSG 4 is quasi-co-located with the DMRS of MSG 2, or the quasi-co-located information of the DMRS of MSG 4 is consistent with the quasi-co-located information carried by MSG 3.

[0265] Example 2: If the terminal explicitly or implicitly indicates its location-related information via MSG 3, or if the terminal sends an SRS associated with its identifier (the base station can determine the terminal's location information via SRS), then the network-side equipment determines the transmission-related information for sending MSG 4 based on the terminal's location information.

[0266] 1) The terminal determines the transmission parameters of MSG 1 based on the information detected by multiple reference signals or synchronization signals.

[0267] Optionally, the multiple reference signals or synchronization signals may be signals from the same cell or signals from different cells (such as serving cell and neighboring cells). Alternatively, in a cell-free scenario, the multiple reference signals or synchronization signals may be transmitted through the same or different nodes (e.g., multiple SSBs may be associated with different nodes).

[0268] Optionally, the synchronization raster of multiple reference signals or synchronization signals may be different.

[0269] Optionally, the frequency domain resources (e.g., carrier or resource block, RB) and / or time domain resources of multiple reference signals or synchronization signals may differ.

[0270] Optionally, multiple reference signals or synchronization signals may have different sequence formats.

[0271] Optionally, the reference signal received power (RSRP), signal to interference plus noise ratio (SINR), and reference signal received quality (RSRQ) of the aforementioned multiple reference signals or synchronization signals are all greater than or equal to the third threshold, and / or the difference between RSRP / SINR / RSRQ of the multiple reference signals or synchronization signals is less than or equal to the fourth threshold; wherein the third and fourth thresholds are notified to the terminal by the network-side device through system messages.

[0272] The transmission parameters of MSG 1 are associated with information from multiple reference signals or synchronization signals (e.g., SSB), as detailed in Table 8 below.

[0273] Table 8

[0274]

[0275] The preamble index is associated with at least one of the preamble sequence format (e.g., sequence length, SCS, root sequence, etc.).

[0276] Each {preamble index, preamble time domain resource, preamble frequency domain resource} combination can include multiple combinations of values ​​for the preamble index, preamble time domain resource, and preamble frequency domain resource. The terminal can select one combination of values ​​for the {preamble index, preamble time domain resource, preamble frequency domain resource} to send.

[0277] For example, it specifically includes two methods:

[0278] Method 1: The terminal determines the RO associated with multiple reference signals or synchronization signals based on multiple reference signals or synchronization signals, and then selects a preamble from all preambles of that RO, for example, randomly selecting a preamble; where RO is defined as the time domain resource and frequency domain resource of one MSG1 transmission;

[0279] Method 2: The terminal determines the RO associated with the multiple reference signals or synchronization signals based on the multiple reference signals or synchronization signals, and determines the preamble candidate set. Then, it selects a preamble from the preamble candidate set, for example, by randomly selecting a preamble.

[0280] 2) The terminal sends MSG 1 according to the determined transmission parameters of MSG 1.

[0281] 3) The base station receives MSG 1 sent by the terminal.

[0282] 4) After receiving MSG 1, the base station sends MSG 2 to the terminal; the method by which the base station sends the node information and / or beam-related information of MSG 2 includes at least one of the following:

[0283] The base station sends MSG2 to the terminal through N5 TCIs corresponding to N5 SSB indices. The N5 TCIs correspond to different transport blocks (TB) or the same TB. The N5 SSB indices are determined by the base station through the detected MSG1 information and the preset mapping relationship.

[0284] The base station sends MSG2 to the terminal through X (N5>X>1) of the N5 TCIs corresponding to the N5 SSB indices; where the N5 SSB indices are determined by the base station through the detected MSG1 information and the preset mapping relationship;

[0285] The base station sends MSG2 to the terminal through a TCI corresponding to an SSB that is different from the N5 SSB indices. At this time, the terminal needs to detect the new SSB and receive the corresponding MSG2.

[0286] Different SSBs or TCIs can correspond to one or more APs.

[0287] 5) The terminal receives MSG 2 sent by the base station. The terminal's receiving behavior includes at least one of the following:

[0288] The terminal receives MSG2 sent by N5 TCIs corresponding to N5 SSB indices (three possible results: no reception; received MSG2 sent by X (N5>X>1) TCIs; received MSG2 sent by N5 TCIs).

[0289] The terminal receives N5 TCIs corresponding to N5 SSB indices, one of which corresponds to MSG2 (two possible results: reception failure; reception success).

[0290] The terminal receives MSG2 sent by the TCI corresponding to the SSB with a different index from the N5 SSBs (two possible results: reception failure; reception success).

[0291] Optionally, MSG 2 includes new QCL / TCI information, such as QCL / TCI information different from that of the previous SSB; for example, MSG 2 includes this new QCL information, and the terminal uses this new QCL / TCI information to receive MSG4. When receiving MSG 2, the terminal assumes that it uses N5 TCI information corresponding to N5 SSB indices or one TCI information corresponding to one SSB.

[0292] Optionally, the network can instruct the terminal in MSG 2 to receive the frequency domain position corresponding to MSG 4, thereby reducing interference.

[0293] 6) When the terminal successfully receives an MSG 2 and the preamble index in the MSG 2 is the same as the preamble index sent by the terminal, the terminal can stop listening to MSG 2; if the terminal does not receive MSG 2, or receives MSG 2 but MSG 2 does not carry the terminal's preamble index, the terminal will retransmit MSG 1.

[0294] 7) If the terminal successfully receives an MSG 2, and the preamble index carried in the MSG 2 is the same as the preamble index sent by the terminal, then the terminal sends MSG 3.

[0295] Option 1: MSG 3 implicitly or explicitly indicates the location-related information of the terminal;

[0296] Option 2: The terminal also sends an SRS before or after sending MSG3, or on at least one symbol in the time slot where MSG3 is located, where the SRS is associated with the terminal ID and the association rule is predefined.

[0297] 8) If the base station successfully receives MSG 3, it determines the transmission information of MSG 4 based on the transmission parameters of MSG 3 or the location-related information carried by MSG 3.

[0298] 9) If the base station receives an SRS associated with the terminal ID, it determines the location of the terminal based on the SRS and determines the relevant information for sending MSG 4 corresponding to the terminal location.

[0299] 10) The base station sends MSG 4 based on the relevant information determined in 8) or 9).

[0300] Alternatively, before sending MSG 4, an SSB or TRS (to assist the terminal in receiving MSG 4) may be sent to the terminal based on transmission-related information associated with the terminal's location.

[0301] 11) The terminal receives MSG 4 sent by the base station. If the terminal detects the SSB or TRS sent by the base station before receiving MSG 4, the terminal assumes that the DMRS of MSG 4 is quasi-co-located with the detected SSB or TRS; or, the terminal assumes that the DMRS of MSG 4 is quasi-co-located with the DMRS of MSG 2.

[0302] It should be noted that the random access method provided in this application embodiment can be executed by a random access device or a control module within that random access device for executing the loading random access method. This application embodiment uses the execution of the random access method by a random access device as an example to illustrate the random access device provided in this application embodiment.

[0303] like Figure 4 As shown in the illustration, this application also provides a random access device 400, applied to a terminal, comprising:

[0304] The first sending module 401 is used to send a first target message for random access, wherein the transmission parameters of the first target message are associated with the location-related information of the terminal, or the first target message carries the location-related information of the terminal.

[0305] The transmission parameters of the first target message include at least one of the following:

[0306] The sequence information of the first target message;

[0307] Temporal resource information of the first target message;

[0308] Frequency domain resource information of the first target message;

[0309] The first target message contains sequence information of the demodulation reference signal.

[0310] As an optional embodiment, the apparatus further includes:

[0311] The second receiving module is configured to receive a second target message for random access sent by at least one first node; the transmission-related information of the second target message is associated with the transmission parameters of the first target message, or the transmission-related information of the second target message is associated with the location-related information of the terminal.

[0312] The transmission-related information of the second target message includes at least one of the following: the identification information of the at least one first node; and the beam-related information of the second target message.

[0313] As an optional embodiment, the first target message includes: message 1 in the four-step random access process, and the second target message includes: at least one of message 2 and message 4 in the four-step random access process;

[0314] or,

[0315] The first target message includes message 3 in the four-step random access process; the second target message includes message 4 in the four-step random access process.

[0316] As an optional embodiment, the device includes:

[0317] The location determination module is used to measure N1 first signals to determine the location-related information of the terminal; where N1 is an integer greater than or equal to 1.

[0318] As an optional embodiment, the location-related information of the terminal includes:

[0319] The location information of the terminal;

[0320] The measurement quantity related to the terminal location is obtained by the terminal measurement.

[0321] As an optional embodiment, the apparatus further includes:

[0322] The parameter determination module is used to determine the transmission parameters of the first target message associated with the location-related information based on the location-related information of the terminal.

[0323] The first sending module includes:

[0324] The first sending submodule is used to send the first target message according to the determined transmission parameters.

[0325] As an optional embodiment, the apparatus further includes:

[0326] The first determining module is configured to determine at least one of the transmit power and transmit carrier of the first target message based on at least one of the measured reference signal received power (RSRP) of N2 first signals and at least one of the N2 path losses; wherein N2 is an integer greater than or equal to 1; and the N2 path losses are related to the RSRP of the N2 first signals.

[0327] The first sending module includes:

[0328] The second transmission submodule is configured to transmit the first target message according to at least one of the determined transmission power of the first target message and the transmission carrier.

[0329] As an optional embodiment, when the first target message is message 1 and the second target message is message 2, message 2 includes at least one of the following:

[0330] The identifier information of the sending node for message 4;

[0331] Message 4 contains information related to the transmission beam;

[0332] Time-domain resource information for message 4;

[0333] Frequency domain resource information for message 4.

[0334] As an optional embodiment, the second receiving module includes:

[0335] The second receiving submodule is used to receive a second target message for random access sent by at least one first node, based on target beam-related information.

[0336] Wherein, when the second target message is message 2, the target beam-related information is the beam-related information of at least one of the N3 first signals with the largest signal strength measured by the terminal; N3 is an integer greater than or equal to 1;

[0337] Alternatively, when the second target message is message 4, the target beam-related information is the beam-related information of message 2.

[0338] As an optional embodiment, the apparatus further includes:

[0339] The third receiving module is used to receive the first signal sent by the at least one first node;

[0340] The second receiving module includes:

[0341] The third receiving submodule is used to receive a second target message for random access sent by at least one first node based on the beam-related information of the first signal sent by the at least one first node.

[0342] As an optional embodiment, the second target message may further include: location-related information of the terminal.

[0343] As an optional embodiment, the apparatus further includes:

[0344] The third determining module is used to determine that the terminal has successfully received the second target message if the terminal location-related information carried in the second target message is the same as the terminal location-related information carried in the first target message.

[0345] Alternatively, a retransmission module is configured to retransmit the first target message if the second target message does not carry location-related information of the terminal or if the location-related information of the terminal carried in the second target message is different from the location-related information of the terminal carried in the first target message.

[0346] As an optional embodiment, when the first target message is message 1 and the second target message is message 2, the apparatus further includes:

[0347] The second sending module is used to send message 3 to one of the target nodes in the at least one first node; and to implicitly or explicitly indicate to the terminal that the terminal has successfully received the sending-related information corresponding to message 2 through message 3;

[0348] The third receiving module is used to receive message 4 sent by the target node; wherein the beam-related information of message 4 is the same as the beam-related information of message 2; or, the beam-related information of message 4 is the same as the beam-related information carried in message 3.

[0349] As an optional embodiment, when the first target message is message 3 and the second target message is message 4, the apparatus further includes:

[0350] The third sending module is used to send a reference signal associated with the terminal identifier before sending message 3;

[0351] Alternatively, it can be used to send a reference signal associated with the terminal identifier after sending message 3;

[0352] Alternatively, it can be used to send a reference signal associated with the terminal identifier on at least one symbol in the time slot where message 3 is located.

[0353] As an optional embodiment, the apparatus further includes:

[0354] The fourth receiving module is configured to receive a first signaling message, the first signaling message including at least one of the following information:

[0355] Identification information for at least two residential communities;

[0356] Identification information for at least two nodes;

[0357] Location information for at least two residential areas;

[0358] Location information of at least two nodes;

[0359] Information about the first signal associated with each cell;

[0360] Information about the first signal associated with each node.

[0361] As an optional embodiment, the apparatus further includes:

[0362] The fifth receiving module is used to receive the second signaling, which is used to indicate the resource information of the shared random access channel corresponding to at least two cells or at least two nodes.

[0363] In this embodiment, the terminal explicitly or implicitly indicates its location-related information through a randomly accessed first target message. The network side can then adjust the node and / or beam-related information for sending the second target message based on the terminal's location-related information, thereby reducing potential inter-node interference and improving the received signal quality of the second target message.

[0364] It should be noted that the random access device provided in this application embodiment is a device capable of executing the above-described random access method. Therefore, all embodiments of the above-described random access method are applicable to this device and can achieve the same or similar beneficial effects.

[0365] like Figure 5 As shown in the illustration, this application also provides a random access device 500, applied to a network-side device, comprising:

[0366] The first receiving module 501 is used to receive the first target message of random access;

[0367] The first acquisition module 502 is used to acquire the transmission parameters of the first target message of random access or the location-related information of the terminal carried in the first target message of random access; the transmission parameters of the first target message are associated with the location-related information of the terminal.

[0368] The transmission parameters of the first target message include at least one of the following:

[0369] The sequence information of the first target message;

[0370] Temporal resource information of the first target message;

[0371] Frequency domain resource information of the first target message;

[0372] The first target message contains sequence information of the demodulation reference signal.

[0373] As an optional embodiment, the apparatus further includes:

[0374] The information determination module is used to determine the transmission-related information of the randomly accessed second target message based on the transmission parameters of the first target message or the location-related information of the terminal; the transmission-related information of the second target message includes at least one of the following: identification information of at least one first node that sends the second target message; beam-related information of the second target message;

[0375] The fourth sending module is used to send the second target message through at least one first node according to the sending-related information of the second target message.

[0376] As an optional embodiment, the first target message includes: message 1 in the four-step random access process, and the second target message includes: at least one of message 2 and message 4 in the four-step random access process;

[0377] or,

[0378] The first target message includes message 3 in the four-step random access process; the second target message includes message 4 in the four-step random access process.

[0379] As an optional embodiment, the information determination module includes:

[0380] The first determining submodule is used to determine, based on the transmission parameters of the first target message, transmission-related information associated with the transmission parameters of the first target message;

[0381] The second determining submodule is used to determine the transmission-related information associated with the transmission parameters of the first target message as the transmission-related information of the second target message.

[0382] As an optional embodiment, the location-related information of the terminal includes:

[0383] The location information of the terminal;

[0384] The measurement quantity related to the terminal location is obtained by the terminal measurement.

[0385] As an optional embodiment, the information determination module includes:

[0386] The third determining submodule is used to determine the transmission-related information associated with the location of the terminal based on the location-related information of the terminal.

[0387] The fourth determination submodule is used to determine that the transmission-related information associated with the terminal location is the transmission-related information of the second target message.

[0388] As an optional embodiment, when the first target message is message 1 and the second target message is message 2, message 2 includes at least one of the following:

[0389] The identifier information of the sending node for message 4;

[0390] Message 4 contains information related to the transmission beam;

[0391] Time-domain resource information for message 4;

[0392] Frequency domain resource information for message 4.

[0393] As an optional embodiment, the apparatus further includes:

[0394] The fifth transmitting module is used to transmit a first signal through at least one first node; wherein the beam-related information of the first signal is the same as the beam-related information of the second target message.

[0395] As an optional embodiment, the second target message may further include: location-related information of the terminal.

[0396] As an optional embodiment, when the first target message is message 3 and the second target message is message 4, the apparatus further includes:

[0397] The location determination module is used to receive a reference signal associated with the terminal identifier sent by the terminal through at least two nodes, and determine the location of the terminal.

[0398] The sixth sending module is used to send a second target message based on sending-related information associated with the terminal location.

[0399] As an optional embodiment, the apparatus further includes:

[0400] The seventh sending module is used to send a first signaling to the terminal, the first signaling including at least one of the following information:

[0401] Identification information for at least two residential communities;

[0402] Identification information for at least two nodes;

[0403] Location information for at least two residential areas;

[0404] Location information of at least two nodes;

[0405] Information about the first signal associated with each cell;

[0406] Information about the first signal associated with each node.

[0407] As an optional embodiment, the apparatus further includes:

[0408] The eighth transmitting module is used to send a second signaling to the terminal, the second signaling being used to indicate resource information of a shared random access channel corresponding to at least two cells or at least two nodes.

[0409] In this embodiment, the terminal explicitly or implicitly indicates its location-related information through a randomly accessed first target message. The network side can then adjust the node and / or beam-related information for sending the second target message based on the terminal's location-related information, thereby reducing potential inter-node interference and improving the received signal quality of the second target message.

[0410] It should be noted that the random access device provided in this application embodiment is a device capable of executing the above-described random access method. Therefore, all embodiments of the above-described random access method are applicable to this device and can achieve the same or similar beneficial effects.

[0411] The random access device in this application embodiment can be a device, or a component, integrated circuit, or chip in a terminal. The device can be a mobile electronic device or a non-mobile electronic device. For example, mobile electronic devices can be mobile phones, tablets, laptops, PDAs, in-vehicle electronic devices, wearable devices, ultra-mobile personal computers (UMPCs), netbooks, or personal digital assistants (PDAs), etc., while non-mobile electronic devices can be servers, network-attached storage (NAS), personal computers (PCs), televisions (TVs), ATMs, or self-service machines, etc. This application embodiment does not impose specific limitations.

[0412] The random access device in this application embodiment can be a device with an operating system. This operating system can be Android, iOS, or other possible operating systems; this application embodiment does not specifically limit the specific operating system used.

[0413] The random access device provided in this application embodiment can achieve... Figures 1 to 3 The various processes implemented in the method implementation examples will not be described again here to avoid repetition.

[0414] Optional, such as Figure 6 As shown, this application embodiment also provides a communication device 600, including a processor 601, a memory 602, and a program or instructions stored in the memory 602 and executable on the processor 601. For example, when the communication device 600 is a terminal, the program or instructions executed by the processor 601 implement the various processes of the above-described random access method embodiment and achieve the same technical effect. When the communication device 600 is a network-side device, the program or instructions executed by the processor 601 implement the various processes of the above-described random access method embodiment and achieve the same technical effect; to avoid repetition, further details are omitted here.

[0415] Figure 7 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0416] The terminal 700 includes, but is not limited to, components such as: radio frequency unit 701, network module 702, audio output unit 703, input unit 704, sensor 705, display unit 706, user input unit 707, interface unit 708, memory 709, and processor 710.

[0417] Those skilled in the art will understand that terminal 700 may also include a power supply (such as a battery) for powering various components. The power supply can be logically connected to processor 710 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. The terminal structure shown in the figure does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0418] It should be understood that, in this embodiment, the input unit 704 may include a graphics processing unit (GPU) 7041 and a microphone 7042. The GPU 7041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 706 may include a display panel 7061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 707 includes a touch panel 7071 and other input devices 7072. The touch panel 7071 is also called a touch screen. The touch panel 7071 may include a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, power buttons, etc.), a trackball, a mouse, and a joystick, which will not be described in detail here.

[0419] In this embodiment, the radio frequency unit 701 receives downlink data from the network-side device and processes it for the processor 710; additionally, it sends uplink data to the network-side device. Typically, the radio frequency unit 701 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.

[0420] The memory 709 can be used to store software programs or instructions and various data. The memory 709 may primarily include a program or instruction storage area and a data storage area. The program or instruction storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 709 may include high-speed random access memory and non-volatile memory, wherein the non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. For example, at least one disk storage device, flash memory device, or other non-volatile solid-state storage device.

[0421] Processor 710 may include one or more processing units; optionally, processor 710 may integrate an application processor and a modem processor, wherein the application processor mainly handles the operating system, user interface, and applications or instructions, and the modem processor mainly handles wireless communication, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 710.

[0422] The radio frequency unit 701 is used to send a first target message for random access, wherein the transmission parameters of the first target message are associated with the location-related information of the terminal or the first target message carries the location-related information of the terminal.

[0423] The transmission parameters of the first target message include at least one of the following:

[0424] The sequence information of the first target message;

[0425] Temporal resource information of the first target message;

[0426] Frequency domain resource information of the first target message;

[0427] The first target message contains sequence information of the demodulation reference signal.

[0428] Optionally, the radio frequency unit 701 is further configured to receive a second target message for random access sent by at least one first node; the transmission-related information of the second target message is associated with the transmission parameters of the first target message or the transmission-related information of the second target message is associated with the location-related information of the terminal.

[0429] The transmission-related information of the second target message includes at least one of the following: the identification information of the at least one first node; and the beam-related information of the second target message.

[0430] In this embodiment, the terminal explicitly or implicitly indicates its location-related information through a randomly accessed first target message. The network side can then adjust the node and / or beam-related information for sending the second target message based on the terminal's location-related information, thereby reducing potential inter-node interference and improving the received signal quality of the second target message.

[0431] It should be noted that the terminal provided in this application embodiment is a terminal capable of executing the above-described random access method. Therefore, all embodiments of the above-described random access method are applicable to this terminal and can achieve the same or similar beneficial effects.

[0432] Specifically, embodiments of this application also provide a network-side device. For example... Figure 8 As shown, the network device 800 includes an antenna 81, a radio frequency (RF) device 82, and a baseband device 83. The antenna 81 is connected to the RF device 82. In the uplink direction, the RF device 82 receives information through the antenna 81 and sends the received information to the baseband device 83 for processing. In the downlink direction, the baseband device 83 processes the information to be transmitted and sends it to the RF device 82. The RF device 82 processes the received information and then transmits it through the antenna 81.

[0433] The aforementioned frequency band processing device can be located in the baseband device 83. The method executed by the network-side device in the above embodiments can be implemented in the baseband device 83, which includes a processor 84 and a memory 85.

[0434] Baseband device 83 may include, for example, at least one baseband board on which multiple chips are disposed, such as... Figure 8 As shown, one of the chips, for example, is a processor 84, which is connected to a memory 85 to call the program in the memory 85 and execute the network device operation shown in the above method embodiment.

[0435] The baseband device 83 may also include a network interface 86 for exchanging information with the radio frequency device 82, such as a common public radio interface (CPRI).

[0436] Specifically, the network-side device in this embodiment of the invention further includes: instructions or programs stored in memory 85 and executable on processor 84. Processor 84 calls the instructions or programs in memory 85 to execute the methods executed by each module shown in FIG3 and achieve the same technical effect. To avoid repetition, it will not be described in detail here.

[0437] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described random access method embodiments and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0438] The processor is the processor in the electronic device described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0439] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above-described random access method embodiments and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0440] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0441] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0442] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they 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 this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0443] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

[0444] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A random access method, characterized by, include: Based on the location-related information of the terminal, determine the transmission parameters of the first target message associated with the location-related information; The terminal sends a first target message for random access, where the first target message is message 1 for random access. The transmission parameters of the first target message include at least one of the following: The sequence information of the first target message; Temporal resource information of the first target message; Frequency domain resource information for the first target message.

2. The method of claim 1, wherein, After the terminal sends the first target message for random access, the method further includes: The terminal receives a second target message for random access sent by at least one first node; the transmission information of the second target message is associated with the transmission parameters of the first target message, or the transmission information of the second target message is associated with the location information of the terminal. The transmission-related information of the second target message includes at least one of the following: the identification information of the at least one first node; and the beam-related information of the second target message.

3. The method of claim 2, wherein, The first target message includes: message 1 in the four-step random access process; the second target message includes: at least one of message 2 and message 4 in the four-step random access process. or, The first target message includes message 3 in the four-step random access process; the second target message includes message 4 in the four-step random access process.

4. The method of claim 1, wherein, Before sending the first target message during the random access process, the method includes: The location-related information of the terminal is determined by measuring N1 first signals; where N1 is an integer greater than or equal to 1.

5. The method according to any one of claims 1 to 4, characterized in that, The location-related information of the terminal includes: The location information of the terminal; The measurement quantity related to the terminal location is obtained by the terminal measurement.

6. The method of claim 1, wherein, Sending the first target message for random access includes: The first target message is sent according to the determined transmission parameters.

7. The method of claim 1, wherein, Before sending the first target message for random access, the method further includes: Based on the measured reference signal received power (RSRP) of N2 first signals and at least one of N2 path losses, determine the transmit power of the first target message and at least one of the transmit carrier; wherein N2 is an integer greater than or equal to 1; the N2 path losses are related to the RSRP of the N2 first signals; Sending the first target message for random access includes: The first target message is transmitted according to at least one of the determined first target message's transmit power and transmit carrier.

8. The method of claim 3, wherein, When the first target message is message 1 and the second target message is message 2, message 2 includes at least one of the following: The identifier information of the sending node for message 4; Message 4 contains information related to the transmission beam; Time-domain resource information for message 4; Frequency domain resource information for message 4.

9. The method of claim 3, wherein, Receive at least one second target message for random access sent by a first node, including: Based on target beam information, receive at least one second target message for random access sent by a first node; Wherein, when the second target message is message 2, the target beam-related information is the beam-related information of at least one of the N3 first signals with the largest signal strength measured by the terminal; N3 is an integer greater than or equal to 1; Alternatively, when the second target message is message 4, the target beam-related information is the beam-related information of message 2.

10. The method of claim 2, wherein, Before receiving a second target message for random access sent by at least one first node, the method further includes: Receive a first signal sent by the at least one first node; The receiving of a second target message for random access sent by at least one first node includes: Based on the beam-related information of the first signal sent by the at least one first node, a second target message for random access sent by the at least one first node is received.

11. The method of claim 2, wherein, The second target message also includes: location-related information of the terminal.

12. The method of claim 2, wherein, After receiving the second target message for random access sent by at least one first node, the method further includes: If the terminal location information carried in the second target message is the same as the terminal location information carried in the first target message, it is determined that the terminal has successfully received the second target message. or, If the second target message does not carry location-related information of the terminal, or if the location-related information of the terminal carried in the second target message is different from the location-related information of the terminal carried in the first target message, the first target message is resent.

13. The method of claim 3, wherein, When the first target message is message 1 and the second target message is message 2, the method further includes: Send message 3 to one of the target nodes in the at least one first node; use message 3 to implicitly or explicitly indicate that the terminal has successfully received the sending-related information corresponding to message 2; Receive message 4 sent by the target node; wherein the beam-related information of message 4 is the same as the beam-related information of message 2; or, the beam-related information of message 4 is the same as the beam-related information carried in message 3.

14. The method of claim 3, wherein, When the first target message is message 3 and the second target message is message 4, the method further includes: Before sending message 3, send a reference signal associated with the terminal identifier; Alternatively, after sending message 3, send a reference signal associated with the terminal identifier; Alternatively, a reference signal associated with the terminal identifier may be sent on at least one symbol in the time slot where message 3 is located.

15. The method of claim 1, wherein, Before sending the first target message for random access, the method further includes: Receive a first signaling message, the first signaling message including at least one of the following: Identification information for at least two residential communities; Identification information for at least two nodes; Location information for at least two residential areas; Location information of at least two nodes; Information about the first signal associated with each cell; Information about the first signal associated with each node.

16. The method of claim 1, wherein, Before sending the first target message for random access, the method further includes: Receive a second signaling message, which is used to indicate resource information of a shared random access channel corresponding to at least two cells or at least two nodes.

17. A random access method, comprising: include: The network-side device receives the first target message for random access; The first target message is message 1, which is randomly accessed. The network-side device determines the location-related information of the terminal based on the transmission parameters of the first target message of the random access; The transmission parameters of the first target message include at least one of the following: The sequence information of the first target message; Temporal resource information of the first target message; Frequency domain resource information for the first target message.

18. The method of claim 17, wherein, The method further includes: The network-side device determines the transmission-related information of the randomly accessed second target message based on the transmission parameters of the first target message or the location-related information of the terminal; the transmission-related information of the second target message includes at least one of the following: the identification information of at least one first node sending the second target message; the beam-related information of the second target message; The network-side device sends the second target message through at least one first node based on the relevant information for sending the second target message.

19. The method of claim 18, wherein, The first target message includes: message 1 in the four-step random access process; the second target message includes: at least one of message 2 and message 4 in the four-step random access process. or, The first target message includes message 3 in the four-step random access process; the second target message includes message 4 in the four-step random access process.

20. The method of claim 18, wherein, Based on the transmission parameters of the first target message, determine the transmission-related information of the randomly accessed second target message, including: Based on the transmission parameters of the first target message, determine the transmission-related information associated with the transmission parameters of the first target message; The transmission-related information associated with the transmission parameters of the first target message is determined to be the transmission-related information of the second target message.

21. The method of claim 17, wherein, The location-related information of the terminal includes: The location information of the terminal; The measurement quantity related to the terminal location is obtained by the terminal measurement.

22. The method of claim 21, wherein, Based on the location-related information of the terminal, determine the transmission-related information of the second target message for random access, including: Based on the location-related information of the terminal, determine the transmission-related information associated with the terminal's location; The transmission-related information associated with the terminal location is determined to be the transmission-related information of the second target message.

23. The method of claim 19, wherein, When the first target message is message 1 and the second target message is message 2, message 2 includes at least one of the following: The identifier information of the sending node for message 4; Message 4 contains information related to the transmission beam; Time-domain resource information for message 4; Frequency domain resource information for message 4.

24. The method of claim 18, wherein, Before sending the second target message through at least one first node, based on the sending information related to the second target message, the method further includes: A first signal is transmitted through at least one first node; wherein the beam-related information of the first signal is the same as the beam-related information of the second target message.

25. The method of claim 18, wherein, The second target message also includes: location-related information of the terminal.

26. The method of claim 19, wherein, When the first target message is message 3 and the second target message is message 4. Before sending the second target message through at least one first node based on the sending information related to the second target message, the method further includes: The network-side device receives a reference signal associated with the terminal identifier sent by the terminal through at least two nodes, and determines the terminal location; A second target message is sent based on the sending-related information associated with the terminal location.

27. The method of claim 17, wherein, Before the network-side device receives the first target message for random access, the method further includes: Send a first signaling message to the terminal, the first signaling message including at least one of the following: Identification information for at least two residential communities; Identification information for at least two nodes; Location information for at least two residential areas; Location information of at least two nodes; Information about the first signal associated with each cell; Information about the first signal associated with each node.

28. The method according to claim 17, characterized in that, Before the network-side device receives the first target message for random access, the method further includes: A second signaling message is sent to the terminal, the second signaling message being used to indicate resource information of the shared random access channel corresponding to at least two cells or at least two nodes.

29. A random access device, applied to a terminal, characterized in that, include: The determining module is used to determine the transmission parameters of the first target message associated with the location-related information based on the location-related information of the terminal; The first sending module is used to send a first target message for random access; the first target message is message 1 for random access. The transmission parameters of the first target message include at least one of the following: The sequence information of the first target message; Temporal resource information of the first target message; Frequency domain resource information for the first target message.

30. A terminal, characterized in that, It includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the random access method as described in any one of claims 1 to 16.

31. A random access device, applied to network-side equipment, characterized in that, include: The first receiving module is used to receive the first target message from random access; The first target message is message 1, which is randomly accessed. The first acquisition module is used to determine the location-related information of the terminal based on the transmission parameters of the first target message accessed randomly; The transmission parameters of the first target message include at least one of the following: The sequence information of the first target message; Temporal resource information of the first target message; Frequency domain resource information for the first target message.

32. A network-side device, characterized in that, It includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the random access method as described in any one of claims 17 to 28.

33. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the random access method as described in any one of claims 1 to 16; or, when executed by a processor, the program or instructions implement the steps of the random access method as described in any one of claims 17 to 28.

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