A random access method, device and equipment

Abstract

The present application discloses a random access method, device and equipment, and relates to the field of communication technology. The method comprises: sending a message A in a two-step random access; wherein the message A comprises a preamble and a physical uplink shared channel PUSCH; at least one of the relevant information of the preamble and the relevant information of the PUSCH indicates the location-related information of the terminal. The solution of the present application is used to solve the problem that the existing random access process is not applicable in cell free.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to a random access method, device and equipment. Background Art

[0002] In the current two-step random access, the terminal needs to determine the random access channel (RACH) occasion (Occasion) based on the cell and send a message (MSG) A.

[0003] However, in the cell free scenario, the system is composed of many wireless access points (APs), the terminal communicates with one or more adjacent APs, and when the terminal moves between APs, the service AP of the terminal will change. Therefore, the existing random access process is not applicable to cell free. Summary of the invention

[0004] The embodiments of the present application provide a random access method, apparatus and device, which can solve the problem that the existing random access process is not applicable to cell free.

[0005] In a first aspect, an embodiment of the present application provides a random access method, which is performed by a terminal and includes:

[0006] Sending message A in two-step random access;

[0007] The message A includes a preamble and a physical uplink shared channel PUSCH;

[0008] At least one of the preamble related information and the PUSCH related information indicates location related information of the terminal.

[0009] In a second aspect, an embodiment of the present application provides a random access method, which is performed by a network device and includes:

[0010] Receiving a message A in a two-step random access, wherein the message A includes a preamble and a PUSCH;

[0011] Acquire at least one of the relevant information of the preamble and the relevant information of the PUSCH;

[0012] Among them, at least one of the relevant information of the preamble code and the relevant information of the PUSCH indicates the relevant information of the location of the terminal.

[0013] In a third aspect, an embodiment of the present application further provides a random access device, including:

[0014] A first sending module, used to send a message A in a two-step random access;

[0015] The message A includes a preamble and a physical uplink shared channel PUSCH;

[0016] At least one of the preamble related information and the PUSCH related information indicates location related information of the terminal.

[0017] In a fourth aspect, an embodiment of the present application further provides a random access device, including:

[0018] A second receiving module, configured to receive a message A in a two-step random access, wherein the message A includes a preamble and a PUSCH;

[0019] An acquisition module, configured to acquire at least one of the preamble related information and the PUSCH related information;

[0020] Among them, at least one of the relevant information of the preamble code and the relevant information of the PUSCH indicates the relevant information of the location of the terminal.

[0021] In the fifth aspect, an embodiment of the present application further provides a communication device, which includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the method described in the first aspect or the second aspect.

[0022] In a sixth aspect, an embodiment of the present application further provides a readable storage medium, on which a program or instruction is stored, and when the program or instruction is executed by a processor, the steps of the method described in the first aspect or the second aspect are implemented.

[0023] In the seventh aspect, an embodiment of the present application provides a chip, which includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the method described in the first aspect or the second aspect.

[0024] In an eighth aspect, an embodiment of the present application provides a program product, which is stored in a non-volatile storage medium and is executed by at least one processor to implement the steps of the method described in the first aspect or the second aspect.

[0025] In this way, in an embodiment of the present application, message A including a preamble code and a PUSCH in the two-step random access is sent. Since at least one of the relevant information of the preamble code and the relevant information of the PUSCH can indicate the location-related information of the terminal, the network device can receive the message A, that is, receive the preamble code and the PUSCH, and further, based on at least one of the relevant information of the preamble code and the relevant information of the PUSCH, the location-related information of the terminal can be understood to determine the sending-related information of message B in the two-step random access, so as to realize random access in a cell free scenario. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a structural diagram of a wireless communication system;

[0027] Figure 2 This is a flowchart of a random access method according to an embodiment of the present application;

[0028] Figure 3 is a schematic diagram of the location of the terminal;

[0029] Figure 4 It is a structural diagram of the node communication system;

[0030] Figure 5 This is a second flow chart of the random access method according to an embodiment of the present application;

[0031] Figure 6 for Figure 2 The corresponding device structure diagram;

[0032] Figure 7 for Figure 5 The corresponding device structure diagram;

[0033] Figure 8 A structural diagram of a communication device according to an embodiment of the present application;

[0034] Fig. 9 A structural diagram of a terminal according to an embodiment of the present application;

[0035] Fig.10 This is a structural diagram of a network device according to an embodiment of the present application. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0037] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here. In addition, the "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally represents that the objects associated with each other are in an "or" relationship.

[0038] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, 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 the embodiments of the present application are often used interchangeably, and the described technology can be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following descriptions, but these technologies can also be applied to applications other than NR system applications, such as the 6th generation (6 th Generation, 6G) communication system.

[0039] Figure 1A block diagram of a wireless communication system applicable to an embodiment of the present application is shown. The wireless communication system includes a terminal 11 and a network device 12. Among them, the terminal 11 can also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer, TPC), a laptop computer (Laptop Computer, LC) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (Ultra-Uobile Personal Computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), a wearable device (Wearable Device) or a vehicle-mounted device (VUE), a pedestrian terminal (PUE) and other terminal-side devices, and the wearable device includes: a bracelet, a headset, glasses, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network device 12 can be a base station or a core network, wherein the base station can be referred to as a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a B node, an evolved B node (eNB), a home B node, a home evolved B node, a WLAN access point, a WiFi node, a transmitting and receiving point (Transmitting Receiving Point, TRP) or some other suitable term in the field. As long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

[0040] In the following, in conjunction with the accompanying drawings, a random access method provided by an embodiment of the present application is described in detail through specific embodiments and application scenarios.

[0041] The method of the embodiment of the present application is executed by a terminal, and the terminal, such as user equipment, can refer to an access terminal, a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent or a user device. The terminal can also be a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a Wireless Local Loop (Wireless Local Loop, WLL) station, a PDA, a handheld device with wireless communication function, a computing device or other processing equipment connected to a wireless modem, a vehicle-mounted device, a wearable device.

[0042] like Figure 2 As shown, a random access method in an embodiment of the present application is executed by a terminal, including:

[0043] Step 201, sending message A in two-step random access;

[0044] The message A includes a preamble and a physical uplink shared channel PUSCH;

[0045] At least one of the preamble related information and the PUSCH related information indicates location related information of the terminal.

[0046] In this way, the terminal executes step 201 to send message A including the preamble code and the PUSCH in the two-step random access. Since at least one of the relevant information of the preamble code and the relevant information of the PUSCH can indicate the location-related information of the terminal, the network device can receive the message A, that is, receive the preamble code and the PUSCH. Further, based on at least one of the relevant information of the preamble code and the relevant information of the PUSCH, the location-related information of the terminal can be understood to determine the sending-related information of the message B in the two-step random access, so as to realize random access in the cell free scenario.

[0047] Moreover, the sending related information of the message B is determined according to the location related information, which reduces the potential interference between APs and improves the received signal quality of the message B.

[0048] The message A includes the PUSCH, that is, the message carried on the PUSCH.

[0049] It should be known that the nodes receiving message A (MSG A), determining the sending related information of message B (MSG B), and sending message B may be the same node or different nodes, which will not be described in detail herein.

[0050] In this embodiment, at least one of the relevant information of the preamble and the relevant information of the PUSCH indicates the location-related information of the terminal. Specifically, the relevant information of the preamble may independently indicate the location-related information of the terminal, the relevant information of the PUSCH may independently indicate the location-related information of the terminal, or the relevant information of the preamble and the relevant information of the PUSCH may jointly indicate the location-related information of the terminal. Furthermore, the indication of the location-related information of the terminal may be an explicit indication of the location-related information of the terminal, or an implicit indication through a mapping relationship. The mapping relationship may be predefined or configured by the base station; or, some parameters of the mapping relationship may be configured by the base station, and the relevant rules or calculation formulas of the mapping relationship are predefined.

[0051] Optionally, the relevant information of the preamble includes at least one of the following:

[0052] Sequence information;

[0053] Time domain resource information;

[0054] Frequency domain resource information.

[0055] Here, the preamble sequence information includes a sequence identifier (preamble index / ID), a sequence length, a root sequence, a scrambling sequence, an initialization sequence, a subcarrier spacing (SCS), a cyclic shift of the sequence or an orthogonal cover code, etc. One or more of the above information may indicate the location-related information or part of the location-related information of the terminal through a pre-set mapping relationship.

[0056] The preamble index / ID is associated with a sequence format (for example, at least one of a sequence length, an SCS, a root sequence, etc.), and the association relationship is predefined or configured by a base station; or, some relevant parameters of the association relationship are configured by a base station, and relevant rules or calculation formulas of the association relationship are predefined.

[0057] Optionally, the PUSCH related information includes at least one of the following:

[0058] Bit information carried by the PUSCH;

[0059] Demodulation reference signal related information of the PUSCH;

[0060] Time domain resource information of the PUSCH;

[0061] The frequency domain resource information of the PUSCH.

[0062] One or more of the above information may indicate the location-related information or part of the location-related information of the terminal through a pre-set mapping relationship. In addition, the bit information carried by the PUSCH may also be the location-related information or part of the location-related information of the terminal to achieve explicit indication. Here, the demodulation reference signal-related information may be the scrambling sequence, resources, and other information of the DMRS.

[0063] Optionally, when the relevant information of the preamble code and the relevant information of the PUSCH jointly indicate the location-related information of the terminal, the relevant information of the preamble code indicates first information of the location-related information, and the relevant information of the PUSCH indicates second information of the location-related information.

[0064] For example, the first mapping relationship defines the correspondence between the first information of the location-related information (such as the first type of location representing the location area) and the preamble-related information, as shown in Table 1:

[0065] Table 1

[0066]

[0067] Optionally, each combination of {preamble index, preamble time domain resource, preamble frequency domain resource} may include multiple value combinations of preamble index, preamble time domain resource, and preamble frequency domain resource.

[0068] The second mapping relationship defines the correspondence between the second information of the location-related information (such as the second type of location in the location area) and the PUSCH-related information. The second information is another part of the location-related information, indicating a more detailed location than the first information. For example, the first type of location 1 includes 4 second type of locations, namely, locations 1-1, 1-2, 1-3, and 1-4, which are indicated by 2 bits carried by PUSCH. Therefore, the network device can determine the location-related information of the terminal based on the first type of location indicated by the relevant information of the preamble and the second type of location indicated by the relevant information of the PUSCH. For example, the base station finally determines that the location information of the terminal is location 1-2 based on the first type of location 1 indicated by the relevant information of the detected preamble and the second type of location indicated by the 2 bits carried by PUSCH.

[0069] Optionally, the location-related information includes at least one of the following:

[0070] Location information;

[0071] A measurement that is related to position.

[0072] Here, the position information is complete position information, which can be realized as: a two-dimensional grid based on the two-dimensional coordinates of the origin (such as Figure 3 The grid 301 shown in the figure, or a three-dimensional grid in three-dimensional coordinates; a sub-area in polar coordinates based on the origin; absolute longitude and latitude information; relative position information relative to a reference point or the previously reported position information; position change, position area change indication information; and position quality information.

[0073] The format of the location information (such as the size of the grid, the size of the sub-region in polar coordinates, the selection of the origin, etc.) is sent by the base station to the terminal, or is pre-defined (such as agreed in the protocol).

[0074] For the method of jointly indicating the location-related information of the terminal, Figure 3 Taking the two-dimensional coordinate grid diagram shown as an example, the first type of position indicated by the preamble related information is an area including A grids (such as area 302 of 4 grids), and the second type of position indicated by the PUSCH related information includes an area 303 of B grids (such as area 303 of 1 grid), A>B. Among them, area 302 is located in the network coverage area 304.

[0075] The measurements related to location are incomplete location information. Network devices need to combine other information (such as the location of network devices) to obtain the complete location information of the terminal. Measurements related to location include: the arrival angle of different signals (and beam information); Reference Signal Received Power (RSRP), such as the RSRP of different signals; and the delay between different signals.

[0076] It is known from the above content that at least one of the preamble related information and the PUSCH related information in the message A needs to indicate the location related information of the terminal. Therefore, in this embodiment, optionally, before step 201, it also includes:

[0077] Measuring N1 first measurement signals to determine the location-related information of the terminal;

[0078] Determine at least one of the following based on the location-related information:

[0079] Related information of the preamble;

[0080] The PUSCH related information;

[0081] The N1 first measurement signals are sent by at least one first node, and N1 is an integer greater than or equal to 1.

[0082] Here, the first measurement signal can be at least one of a downlink reference signal and a synchronization signal, then the N1 first measurement signals can be N1 downlink reference signals, can be N1 synchronization signals, or can be M downlink reference signals and K synchronization signals, M+K=N1, M and K are integers greater than or equal to 0.

[0083] Among them, the downlink reference signal includes: at least one of a channel state information reference signal (CSI-RS) and a tracking reference signal (TRS). Of course, the downlink signal can also be other downlink reference signals other than the above signals, which are not listed here. The synchronization signal includes but is not limited to the synchronization signal / physical broadcast channel signal block (Synchronization Signal and PBCH Block, SSB).

[0084] Optionally, the N1 first measurement signals satisfy at least one of the following:

[0085] Signals in the same cell, or signals in different cells;

[0086] Sent by different APs / TRPs (e.g., N1 SSBs are associated with different APs / TRP(s));

[0087] The sync raster (e.g. SSB's sync raster) is different;

[0088] The frequency domain resources (e.g., carriers or resource blocks (RBs)) and / or time domain resources are different;

[0089] The sequence format is different.

[0090] Moreover, for the N1 first measurement signals obtained by measurement, the signal parameters of the N1 first measurement signals are greater than or equal to the first threshold, and / or the difference between the signal parameters of the N1 first measurement signals is less than or equal to the second threshold. Here, the signal parameter includes: at least one of RSRP, signal to interference plus noise ratio (SINR) and reference signal received quality (RSRQ). The first threshold and the second threshold are notified to the terminal by the network device through a system message.

[0091] Specifically, the location-related information of the terminal is determined based on N1 first measurement signals, which can be achieved through one or more of the global navigation satellite system (GNSS), radio frequency identification (RFID), ultra-wide band (UWB), Bluetooth, wireless local area network Wi-Fi, network-based positioning technology or other positioning technologies.

[0092] After the location-related information of the terminal is determined, at least one of the preamble-related information and the PUSCH-related information may be further determined according to the location-related information.

[0093] The specific implementation of determining at least one of the preamble related information and the PUSCH related information according to the location related information may be implemented by inverse processing of at least one of the preamble related information and the PUSCH related information indicating the location related information of the terminal.

[0094] For example, in the case where the relevant information of the preamble and the relevant information of the PUSCH jointly indicate the location-related information of the terminal, the relevant information of the preamble can be determined by the first type of position of the location-related information; and the 2-bit information carried by the PUSCH can be determined by the second type of position of the location-related information. In this way, if the location information of the terminal is position 1-2, the relevant information of the preamble can be determined by Table 1 from the first type of position 1, and the 2-bit information carried by the PUSCH can be determined from the second type of position 1-2.

[0095] In addition, since each {preamble index, preamble time domain resource, preamble frequency domain resource} combination may include multiple preamble index, preamble time domain resource, preamble frequency domain resource value combinations, the terminal may select one {preamble index, preamble time domain resource, preamble frequency domain resource} value combination as the relevant information of the preamble in message A. Specifically, the selection method includes:

[0096] Method 1: The terminal first determines the RACH Occasion (RO) associated with the location-related information according to the location-related information, and then selects a preamble from all preambles of the RO, for example, randomly selects a preamble; wherein RO is the time domain resource and frequency domain resource for one MSG1 transmission;

[0097] Method 2: The terminal determines the RO associated with the location-related information and determines a preamble candidate set, and then selects a preamble from the preamble candidate set, for example, randomly selects a preamble.

[0098] In addition, for the case where the PUSCH related information independently indicates the location related information of the terminal, the preamble related information is not associated with the location related information of the terminal. Optionally, before sending the message A in the two-step random access, the method further includes:

[0099] N2 first measurement signals are measured to determine relevant information of the preamble code; wherein the N2 first measurement signals are sent by at least one first node, and N2 is an integer greater than or equal to 1.

[0100] Here, N2 may or may not be equal to N1.

[0101] Optionally, the N2 first measurement signals satisfy at least one of the following:

[0102] The sync raster (such as SSB's sync raster) is different;

[0103] The frequency domain resources (such as carrier or RB) and / or time domain resources are different;

[0104] The sequence format is different;

[0105] Sent by the same or different AP / TRP (e.g., N2 SSBs are associated with different AP / TRP(s)).

[0106] Similarly, for the N2 first measurement signals obtained by measurement, the signal parameters of the N2 first measurement signals are greater than or equal to the first threshold, and / or the difference between the signal parameters of the N2 first measurement signals is less than or equal to the second threshold. Here, the signal parameter includes: at least one of RSRP, Signal to Interference plus Noise Ratio (SINR) and Reference Signal Received Quality (RSRQ). The first threshold and the second threshold are notified to the terminal by the network device through a system message.

[0107] Specifically, the relevant information of the preamble is determined by the N2 first measurement signals, which can be based on the association between the two. For example, the third mapping relationship defines the corresponding relationship between the preamble related information and the N2 SSBs, as shown in Table 2:

[0108] Table 2

[0109]

[0110] Each combination of {preamble index, preamble time domain resource, preamble frequency domain resource} may include multiple combinations of values ​​of preamble index, preamble time domain resource, preamble frequency domain resource, and the UE may select one combination of values ​​of {preamble index, preamble time domain resource, preamble frequency domain resource} from them to send. Specifically, the selection method includes:

[0111] Method 1: The terminal first determines the RO associated with the N2 first measurement signals, and then selects a preamble from all preambles of the RO, for example, randomly selects a preamble;

[0112] Method 2: The terminal determines the RO associated with the N2 first measurement signals, determines a preamble candidate set, and then selects a preamble from the preamble candidate set, for example, randomly selects a preamble.

[0113] In this embodiment, optionally, after determining the relevant information of the preamble, the terminal can also determine the relevant information of the associated PUSCH and demodulation reference signal (DMRS) according to the relevant information of the preamble, and send the PUSCH of the MSGA. For example, after selecting a certain RO and a certain preamble index of the RO, the UE finds the corresponding PO and DMRS resources used to transmit the PUSCH through a predefined mapping rule.

[0114] Generally speaking, message sending is performed based on transmission power and transmission carrier, so, optionally, before step 201, the following is further included:

[0115] Measuring N3 first measurement signals to determine at least one of a transmit power and a transmit carrier of the message A; wherein the N3 first measurement signals are sent by at least one first node, and N3 is an integer greater than or equal to 1;

[0116] The sending of message A in two-step random access includes:

[0117] The message A is sent according to at least one of the transmission power and the transmission carrier of the message A.

[0118] Here, N3 may be equal to N1 or N2, or may be different. In this case, the N3 first measurement signals are used to determine at least one of the transmission power of message A and the transmission carrier.

[0119] Optionally, determining the transmit power of the message A includes:

[0120] Determine N3 path loss values ​​respectively according to the received powers of the N3 first measurement signals;

[0121] The transmission power of the message A is determined according to the N3 path loss values.

[0122] Taking the first measurement signal as SSB as an example, consider the RSRP of multiple SSBs associated with MSG A; for example, the multiple SSBs are sent through multiple APs, and the transmission power of MSGA will be determined based on the path loss from multiple APs to the terminal.

[0123] Specifically, according to the N3 path loss values, the transmission power of the message A is determined by adding the path loss values ​​of the N3 SSBs to obtain a sum, then taking the log of the sum with a base of 10 to obtain the target path loss value, and then calculating the transmission power of the MSGA based on the target path loss value.

[0124] In addition, if MSG A is retransmitted, the transmission power of the retransmission is increased according to the number of retransmissions. Of course, if the SSB index is changed during the retransmission of MSG A, the power is not increased.

[0125] As for the transmission carrier, the signal parameters of the N3 first measurement signals can be used to select the uplink carriers for sending MSG A configured by the terminal by the base station. Assume that the terminal is configured with a high-frequency carrier and a low-frequency carrier by the base station for sending MSG A. If the RSRP, SINR and RSRQ of the N3 first measurement signals are all less than the corresponding thresholds, the terminal sends MSGA through the target carrier (e.g., a carrier with a lower frequency); otherwise, MSGA is sent through another carrier (e.g., a carrier with a higher frequency).

[0126] Among them, based on the determined sending carrier of the MSGA, the RA-RNTI (Random Access-Radio Network Temporary Identity) can be further determined: the RA-RNTI calculation formula is related to the carrier that sends the MSGA, for example, the carrier ID.

[0127] For beam-related information for sending MSGA, if it is millimeter wave (FR2), MSGA needs to be sent to two TRPs / APs respectively through two beams of a panel or two beams of two panels.

[0128] In this embodiment, optionally, the terminal measures one or more first measurement signals and may also determine beam-related information for sending the preamble.

[0129] Optionally, the terminal measures one or more first measurement signals, and may also determine relevant information of one or more preambles and relevant information of the PUSCH, and send one or more MSG A.

[0130] Optionally, the terminal measures one or more first measurement signals, and determines the random access using two-step RACH or four-step RACH based on the RSRP size obtained by the measurement, that is, determines to send the preamble code of MSG1 or MSGA. For example, if the Q (Q is an integer greater than or equal to 1) first measurement signals obtained by the measurement meet certain conditions, such as the Q RSRPs are all greater than the third threshold, or the sum of the Q RSRPs is greater than the fourth threshold, the preamble code of MSGA is sent; otherwise, MSG1 is sent.

[0131] After the terminal sends message A, the network device that receives the message A can determine the sending related information of message B based on at least one of the related information of the preamble and the related information of the PUSCH, and send message B. For the sent message B, optionally, after step 201, the following is further included:

[0132] Receiving a message B in a two-step random access sent by at least one first node;

[0133] The sending related information of the message B is associated with at least one of the related information of the preamble and the related information of the PUSCH;

[0134] The sending-related information of message B includes at least one of the following:

[0135] identification information of the at least one first node;

[0136] Send the beam related information of the message B.

[0137] Here, the beam-related information includes the direction of the beam, Quasi Co-Location (QCL) information, Transmission Configuration Index (TCI) status information, and the like.

[0138] As known from the above content, at least one of the preamble-related information and the PUSCH-related information indicates the location information of the terminal, and the network device determines the sending-related information of message B based on the preamble and PUSCH received in message A and the location information of the terminal indicated by at least one of the preamble-related information and the PUSCH-related information. Here, the correspondence between the location-related information and the sending-related information of message B is predefined or configured.

[0139] For example, the fourth mapping relationship defines the correspondence between the location-related information of the terminal and the beam-related information of message B, as shown in Table 3:

[0140] Table 3

[0141]

[0142] The fifth mapping relationship defines the correspondence between the location-related information of the terminal and the node identifier of the sending message B (cell free), as shown in Table 4:

[0143] Table 4

[0144]

[0145] The sixth mapping relationship defines the correspondence between the location-related information of the terminal and the node identifier / beam-related information of the sending message B (cell free), as shown in Table 5:

[0146] Table 5

[0147]

[0148] In this way, after the network device further determines the sending-related information of message B based on the location-related information of the terminal indicated by at least one of the preamble-related information and the PUSCH-related information, it sends message B according to at least one of the sending-related information.

[0149] In addition, in an embodiment of the present application, optionally, the method further includes:

[0150] Sending a first reference signal associated with a terminal identifier;

[0151] Receiving a message B in a two-step random access sent by at least one first node;

[0152] The sending-related information of the message B is associated with the location-related information determined by the first reference signal;

[0153] The sending-related information of message B includes at least one of the following:

[0154] identification information of the at least one first node;

[0155] Send the beam related information of the message B.

[0156] Here, the terminal sends the first reference signal, which means that after receiving the first reference signal, the network device can determine the location-related information of the terminal based on the first reference signal, thereby determining the sending-related information of message B. Here, the correspondence between the location-related information and the sending-related information of message B is predefined or configured, and its specific manner is the same as the implementation of the location information of the terminal indicated by at least one of the preamble-related information and the PUSCH-related information and the sending-related information of message B, which will not be repeated here.

[0157] The first reference signal may be a sounding reference signal (Sounding Reference Signal, SRS).

[0158] Optionally, the first reference signal is sent before or after the PUSCH, or on at least one symbol of a time slot where the PUSCH is located.

[0159] Optionally, the embodiment further includes:

[0160] receiving N4 second measurement signals; wherein the N4 second measurement signals are sent by the at least one first node, and N4 is an integer greater than or equal to 1;

[0161] The message B is received according to the beam-related information of the N4 second measurement signals.

[0162] That is, to ensure that the terminal receives message B, before sending message B, the network device sends N4 second measurement signals through at least one first node to assist the terminal in receiving MSG B. After receiving the N4 second measurement signals, the terminal can receive the message B according to the beam-related information of the N4 second measurement signals.

[0163] Specifically, the terminal assumes that the DMRS of MSG B is quasi-co-located with the detected second measurement signal; the terminal assumes that the DMRS of MSG B is quasi-co-located with the second measurement signal with the strongest signal parameter.

[0164] Here, the second measurement signal includes at least one of a synchronization signal and a TRS. Then the N4 second measurement signals may be N4 TRSs, may be N4 synchronization signals, or may be E TRSs and F synchronization signals, where E+F=N4, and E and F are integers greater than or equal to 0.

[0165] In addition, since the network device can also send relevant information of multiple nodes so as to receive the first measurement information and / or the second measurement signal, accordingly, the method further includes:

[0166] Receive relevant information of multiple nodes;

[0167] The relevant information of the multiple nodes includes at least one of the following:

[0168] identifications of the plurality of nodes;

[0169] The locations of the plurality of nodes;

[0170] Information of synchronization signals or reference signals associated with the multiple nodes;

[0171] Random access resource information associated with the multiple nodes.

[0172] Here, the multiple nodes include at least one of cell, TRP and AP. For multiple nodes, their identification may be a node ID; their location may be encrypted; their associated synchronization signal (SSB) or reference signal (CSI-RS, TRS) information includes signal sequence information, signal time-frequency resources, etc. For the random access resource information associated with multiple nodes, in the cell free scenario, it is the information of the shared RACH resources corresponding to the multiple nodes.

[0173] The relevant information of the multiple nodes is sent by the network device through signaling (such as SIB signaling), and the SIB is a SIB sent by a node, or a SIB sent by an SFN (single frequency network). The network device can also broadcast multiple frequency point information of the RACH resource through the SIB, and the terminal can select a frequency point from the corresponding multiple frequency points for RACH transmission, for example, select a frequency point for RACH transmission according to the measured SSB RSRP size.

[0174] In summary, the method of the embodiment of the present application can be applied to Figure 4 In the scenario shown, terminal 1 determines its own location-related information by receiving SSB1 sent by AP1, SSB2 sent by AP2, and SSB3 sent by AP3. Afterwards, terminal 1 determines at least one of the preamble-related information and PUSCH-related information based on the location-related information, and then terminal 1 can determine message A and send message A. Among them, if the preamble-related information is not associated with the location-related information, SSB1, SSB2, and SSB3 can also be used to determine the preamble-related information. SSB1, SSB2, and SSB3 can also be used to determine at least one of the transmission power and the transmission carrier of message A.

[0175] like Figure 5 As shown, a random access method in an embodiment of the present application is performed by a network device, including:

[0176] Step 501, receiving a message A in a two-step random access, wherein the message A includes a preamble and a PUSCH;

[0177] Step 502, obtaining at least one of the relevant information of the preamble and the relevant information of the PUSCH;

[0178] Among them, at least one of the relevant information of the preamble code and the relevant information of the PUSCH indicates the relevant information of the location of the terminal.

[0179] Message A includes a preamble and a PUSCH (i.e., a message carried on the PUSCH). Since at least one of the relevant information of the preamble and the relevant information of the PUSCH can indicate the location-related information of the terminal, the network device receives the message A, i.e., receives the preamble and the PUSCH, and can further understand the location-related information of the terminal based on at least one of the relevant information of the preamble and the relevant information of the PUSCH, so as to determine the sending-related information of the message B in the two-step random access, and realize random access in the cell free scenario.

[0180] Here, the network device may receive the message A forwarded by the first node as the first node, or may receive the message A as a processing node.

[0181] Optionally, after acquiring at least one of the relevant information of the preamble and the relevant information of the PUSCH, the method further includes:

[0182] Determine, according to at least one of the relevant information of the preamble and the relevant information of the PUSCH, the sending relevant information of the message B in the two-step random access;

[0183] Send the message B through at least one first node according to the sending related information of the message B;

[0184] The sending related information of the message B is associated with at least one of the related information of the preamble and the related information of the PUSCH;

[0185] The sending-related information of message B includes at least one of the following:

[0186] identification information of the at least one first node;

[0187] Send the beam related information of the message B.

[0188] Optionally, when the relevant information of the preamble code and the relevant information of the PUSCH jointly indicate the location-related information of the terminal, the relevant information of the preamble code indicates first information of the location-related information, and the relevant information of the PUSCH indicates second information of the location-related information.

[0189] Optionally, the method further comprises:

[0190] Sending N1 first measurement signals through at least one first node, where the N1 first measurement signals are used to determine location-related information of the terminal;

[0191] N1 is an integer greater than or equal to 1.

[0192] Optionally, the method further comprises:

[0193] Sending N2 first measurement signals through at least one first node, where the N2 first measurement signals are used to determine relevant information of the preamble code;

[0194] N2 is an integer greater than or equal to 1.

[0195] Optionally, the relevant information of the preamble includes at least one of the following:

[0196] Sequence information;

[0197] Time domain resource information;

[0198] Frequency domain resource information.

[0199] Optionally, the PUSCH related information includes at least one of the following:

[0200] Bit information carried by the PUSCH;

[0201] Demodulation reference signal related information of the PUSCH;

[0202] Time domain resource information of the PUSCH;

[0203] The frequency domain resource information of the PUSCH.

[0204] Optionally, the location-related information includes at least one of the following:

[0205] Location information;

[0206] A measurement that is related to position.

[0207] Optionally, the method further comprises:

[0208] Sending N3 first measurement signals through at least one first node, where the N3 first measurement signals are used to determine at least one of a transmit power and a transmit carrier of the message A;

[0209] N3 is an integer greater than or equal to 1.

[0210] Optionally, the method further comprises:

[0211] Receiving a first reference signal associated with a terminal identifier;

[0212] Determining, according to the first reference signal, information related to sending of message B in two-step random access;

[0213] Send the message B through at least one first node according to the sending related information of the message B;

[0214] The sending-related information of the message B includes at least one of the following:

[0215] identification information of the at least one first node;

[0216] Send the beam related information of the message B.

[0217] Optionally, the first reference signal is sent before or after the PUSCH, or on at least one symbol of a time slot where the PUSCH is located.

[0218] Optionally, the method further comprises:

[0219] Sending N4 second measurement signals through at least one first node, where the N4 second measurement signals are used to determine beam-related information for receiving the message B;

[0220] The beam-related information received for the message B is the beam-related information of the N4 second measurement signals, where N is an integer greater than or equal to 1.

[0221] Optionally, the method further comprises:

[0222] Send relevant information of multiple nodes;

[0223] The relevant information of the multiple nodes includes at least one of the following:

[0224] identifications of the plurality of nodes;

[0225] The locations of the plurality of nodes;

[0226] Information of synchronization signals or reference signals associated with the multiple nodes;

[0227] Random access resource information associated with the multiple nodes.

[0228] Optionally, the determining, according to at least one of the relevant information of the preamble and the relevant information of the PUSCH, the sending relevant information of the message B in the two-step random access includes:

[0229] Determine, according to at least one of the preamble related information and the PUSCH related information, the location related information of the terminal;

[0230] Determine, according to the location-related information of the terminal, the sending-related information associated with the location of the terminal;

[0231] Among them, the sending-related information associated with the terminal location is the sending-related information of the message B.

[0232] It should be noted that the random access method provided in the embodiment of the present application is implemented in conjunction with the above-mentioned method executed by the terminal, and the implementation method of the embodiment of the random access method executed by the terminal is applicable to this method and can achieve the same technical effect.

[0233] The random access method provided in the embodiment of the present application can be executed by a random access device or a control module in the random access device for executing the loading random access method. The random access method provided in the embodiment of the present application is described by taking the random access device executing the loading random access method as an example.

[0234] like Figure 6 As shown, a random access device in an embodiment of the present application includes:

[0235] A first sending module 610, configured to send a message A in a two-step random access;

[0236] The message A includes a preamble and a physical uplink shared channel PUSCH;

[0237] At least one of the preamble related information and the PUSCH related information indicates location related information of the terminal.

[0238] Optionally, the device further comprises:

[0239] A first receiving module, configured to receive a message B in a two-step random access sent by at least one first node;

[0240] The sending related information of the message B is associated with at least one of the related information of the preamble and the related information of the PUSCH;

[0241] The sending-related information of message B includes at least one of the following:

[0242] identification information of the at least one first node;

[0243] Send the beam related information of the message B.

[0244] Optionally, when the relevant information of the preamble code and the relevant information of the PUSCH jointly indicate the location-related information of the terminal, the relevant information of the preamble code indicates first information of the location-related information, and the relevant information of the PUSCH indicates second information of the location-related information.

[0245] Optionally, the device further comprises:

[0246] A first processing module, configured to measure N1 first measurement signals to determine location-related information of the terminal;

[0247] The second processing module is configured to determine at least one of the following according to the location-related information:

[0248] Related information of the preamble;

[0249] The PUSCH related information;

[0250] The N1 first measurement signals are sent by at least one first node, and N1 is an integer greater than or equal to 1.

[0251] Optionally, the device further comprises:

[0252] The third processing module is used to measure N2 first measurement signals to determine relevant information of the preamble code; wherein the N2 first measurement signals are sent by at least one first node, and N2 is an integer greater than or equal to 1.

[0253] Optionally, the relevant information of the preamble includes at least one of the following:

[0254] Sequence information;

[0255] Time domain resource information;

[0256] Frequency domain resource information.

[0257] Optionally, the PUSCH related information includes at least one of the following:

[0258] Bit information carried by the PUSCH;

[0259] Demodulation reference signal related information of the PUSCH;

[0260] Time domain resource information of the PUSCH;

[0261] The frequency domain resource information of the PUSCH.

[0262] Optionally, the location-related information includes at least one of the following:

[0263] Location information;

[0264] A measurement that is related to position.

[0265] Optionally, the device further comprises:

[0266] a fourth processing module, configured to measure N3 first measurement signals to determine at least one of a transmit power and a transmit carrier of the message A; wherein the N3 first measurement signals are sent by at least one first node, and N3 is an integer greater than or equal to 1;

[0267] The first sending module is further used for:

[0268] The message A is sent according to at least one of the transmission power and the transmission carrier of the message A.

[0269] Optionally, the fourth processing module is further used for:

[0270] Determine N3 path loss values ​​respectively according to the received powers of the N3 first measurement signals;

[0271] The transmission power of the message A is determined according to the N3 path loss values.

[0272] Optionally, the device further comprises:

[0273] A reference signal sending module, used to send a first reference signal associated with a terminal identifier;

[0274] A first message B receiving module, configured to receive a message B in a two-step random access sent by at least one first node;

[0275] The sending-related information of the message B is associated with the location-related information determined by the first reference signal;

[0276] The sending-related information of message B includes at least one of the following:

[0277] identification information of the at least one first node;

[0278] Send the beam related information of the message B.

[0279] Optionally, the first reference signal is sent before or after the PUSCH, or on at least one symbol of a time slot where the PUSCH is located.

[0280] Optionally, the device further comprises:

[0281] A signal receiving module, configured to receive N4 second measurement signals; wherein the N4 second measurement signals are sent by the at least one first node, and N4 is an integer greater than or equal to 1;

[0282] The second message B receiving module is used to receive the message B according to the beam-related information of the N4 second measurement signals.

[0283] Optionally, the device further comprises:

[0284] An information receiving module, used for receiving relevant information of multiple nodes;

[0285] The relevant information of the multiple nodes includes at least one of the following:

[0286] identifications of the plurality of nodes;

[0287] The locations of the plurality of nodes;

[0288] Information of synchronization signals or reference signals associated with the multiple nodes;

[0289] Random access resource information associated with the multiple nodes.

[0290] The device sends a message A including a preamble and a PUSCH in a two-step random access. Since at least one of the relevant information of the preamble and the relevant information of the PUSCH can indicate the location-related information of the terminal, the network device can receive the message A, that is, receive the preamble and the PUSCH. Further, based on at least one of the relevant information of the preamble and the relevant information of the PUSCH, the location-related information of the terminal can be understood to determine the sending-related information of the message B in the two-step random access, and random access in a cell free scenario can be realized.

[0291] The random access device in the embodiment of the present application may be a device, or a component, integrated circuit, or chip in a terminal. The device may be a mobile electronic device or a non-mobile electronic device. For example, the mobile electronic device may be a mobile phone, a tablet computer, a laptop computer, a PDA, a vehicle-mounted electronic device, a wearable device, a UMPC, a netbook, or a PDA, etc., and the non-mobile electronic device may be a server, a network attached storage (NAS), a personal computer (PC), a television (TV), a teller machine or a self-service machine, etc., which is not specifically limited in the embodiment of the present application.

[0292] The random access device in the embodiment of the present application may be a device having an operating system. The operating system may be an Android operating system, an iOS operating system, or other possible operating systems, which are not specifically limited in the embodiment of the present application.

[0293] The random access device provided in the embodiment of the present application can achieve Figure 2 and Figure 3 In order to avoid repetition, the various processes implemented by the terminal in the method embodiment are not described here.

[0294] like Figure 7 As shown, a random access device in an embodiment of the present application includes:

[0295] The second receiving module 710 is used to receive a message A in a two-step random access, where the message A includes a preamble and a PUSCH;

[0296] An acquisition module 720, configured to acquire at least one of the preamble related information and the PUSCH related information;

[0297] Among them, at least one of the relevant information of the preamble code and the relevant information of the PUSCH indicates the relevant information of the location of the terminal.

[0298] Optionally, the device further comprises:

[0299] A first determining module, configured to determine, according to at least one of the relevant information of the preamble and the relevant information of the PUSCH, the sending relevant information of the message B in the two-step random access;

[0300] A second sending module, configured to send the message B through at least one first node according to the sending related information of the message B;

[0301] The sending related information of the message B is associated with at least one of the related information of the preamble and the related information of the PUSCH;

[0302] The sending-related information of message B includes at least one of the following:

[0303] identification information of the at least one first node;

[0304] Send the beam related information of the message B.

[0305] Optionally, when the relevant information of the preamble code and the relevant information of the PUSCH jointly indicate the location-related information of the terminal, the relevant information of the preamble code indicates first information of the location-related information, and the relevant information of the PUSCH indicates second information of the location-related information.

[0306] Optionally, the device further comprises:

[0307] A first communication module, configured to send N1 first measurement signals through at least one first node, wherein the N1 first measurement signals are used to determine location-related information of the terminal;

[0308] N1 is an integer greater than or equal to 1.

[0309] Optionally, the device further comprises:

[0310] A second communication module, configured to send N2 first measurement signals through at least one first node, wherein the N2 first measurement signals are used to determine relevant information of the preamble;

[0311] N2 is an integer greater than or equal to 1.

[0312] Optionally, the relevant information of the preamble includes at least one of the following:

[0313] Sequence information;

[0314] Time domain resource information;

[0315] Frequency domain resource information.

[0316] Optionally, the PUSCH related information includes at least one of the following:

[0317] Bit information carried by the PUSCH;

[0318] Demodulation reference signal related information of the PUSCH;

[0319] Time domain resource information of the PUSCH;

[0320] The frequency domain resource information of the PUSCH.

[0321] Optionally, the location-related information includes at least one of the following:

[0322] Location information;

[0323] A measurement that is related to position.

[0324] Optionally, the device further comprises:

[0325] A third communication module, configured to send N3 first measurement signals through at least one first node, where the N3 first measurement signals are used to determine at least one of a transmit power and a transmit carrier of the message A;

[0326] N3 is an integer greater than or equal to 1.

[0327] Optionally, the device further comprises:

[0328] A third receiving module, configured to receive a first reference signal associated with a terminal identifier;

[0329] A second determining module, configured to determine, according to the first reference signal, information related to sending of message B in two-step random access;

[0330] A third sending module, configured to send the message B through at least one first node according to the sending related information of the message B;

[0331] The sending-related information of the message B includes at least one of the following:

[0332] identification information of the at least one first node;

[0333] Send the beam related information of the message B.

[0334] Optionally, the first reference signal is sent before or after the PUSCH, or on at least one symbol of a time slot where the PUSCH is located.

[0335] Optionally, the device further comprises:

[0336] a fourth communication module, configured to send N4 second measurement signals through at least one first node, where the N4 second measurement signals are used to determine beam-related information for receiving the message B;

[0337] The beam-related information received for the message B is the beam-related information of the N4 second measurement signals, where N is an integer greater than or equal to 1.

[0338] Optionally, the device further comprises:

[0339] A fourth sending module, used for sending relevant information of multiple nodes;

[0340] The relevant information of the multiple nodes includes at least one of the following:

[0341] identifications of the plurality of nodes;

[0342] The locations of the plurality of nodes;

[0343] Information of synchronization signals or reference signals associated with the multiple nodes;

[0344] Random access resource information associated with the multiple nodes.

[0345] Optionally, the first determining module is further configured to:

[0346] Determine, according to at least one of the preamble related information and the PUSCH related information, the location related information of the terminal;

[0347] Determine, according to the location-related information of the terminal, the sending-related information associated with the location of the terminal;

[0348] Among them, the sending-related information associated with the terminal location is the sending-related information of the message B.

[0349] The device receives the message A, which includes a preamble code and a PUSCH. Since at least one of the relevant information of the preamble code and the relevant information of the PUSCH can indicate the location-related information of the terminal, the location-related information of the terminal can be further understood based on at least one of the relevant information of the preamble code and the relevant information of the PUSCH, so as to determine the sending-related information of the message B in the two-step random access, and realize random access in the cell free scenario.

[0350] The random access device in the embodiment of the present application may be a device, or a component, integrated circuit, or chip in a network device. The device may be a base station, which is not specifically limited in the embodiment of the present application.

[0351] The random access device provided in the embodiment of the present application can achieve Figure 5 In order to avoid repetition, the various processes implemented by the network device in the method embodiment are not described here.

[0352] Optional, such as Figure 8 As shown, the embodiment of the present application further provides a communication device, including a processor 801, a memory 802, a program or instruction stored in the memory 802 and executable on the processor 801, For example, when the communication device 800 is a terminal, the program or instruction is executed by the processor 801 to implement the various processes of the random access method embodiment executed by the terminal, and the same technical effect can be achieved. When the communication device 800 is a network device, the program or instruction is executed by the processor 801 to implement the various processes of the random access method embodiment executed by the network device, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0353] Fig. 9 A schematic diagram of the hardware structure of a terminal for implementing various embodiments of the present application.

[0354] The terminal 900 includes but is not limited to: a radio frequency unit 901 , a network module 902 , an audio output unit 903 , an input unit 904 , a sensor 905 , a display unit 906 , a user input unit 907 , an interface unit 908 , a memory 909 , a processor 910 and other components.

[0355] Those skilled in the art will appreciate that the terminal 900 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 910 through a power management system, thereby implementing functions such as managing charging, discharging, and power consumption management through the power management system. Fig. 9 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 in the figure, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0356] It should be understood that in the embodiment of the present application, the input unit 904 may include a graphics processor (Graphics Processing Unit, GPU) 9041 and a microphone 9042, and the graphics processor 9041 processes the image data of the static picture or video obtained by the image capture device (such as a camera) in the video capture mode or the image capture mode. The display unit 906 may include a display panel 9061, and the display panel 9061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 907 includes a touch panel 9071 and other input devices 9072. The touch panel 9071 is also called a touch screen. The touch panel 9071 may include two parts: a touch detection device and a touch controller. Other input devices 9072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0357] In the embodiment of the present application, the radio frequency unit 901 receives downlink data from the network device and sends it to the processor 910 for processing; in addition, the uplink data is sent to the network device. Generally, the radio frequency unit 901 includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0358] The memory 909 can be used to store software programs or instructions and various data. The memory 909 can mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area can store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 909 can include a high-speed random access memory, and can also include a non-volatile memory, wherein the non-volatile memory can be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or a flash memory. For example, at least one disk storage device, a flash memory device, or other non-volatile solid-state storage devices.

[0359] The processor 910 may include one or more processing units; optionally, the processor 910 may integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, and application programs or instructions, etc., and the modem processor mainly processes wireless communications, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 910.

[0360] The radio frequency unit 901 is used to send a message A in a two-step random access;

[0361] The message A includes a preamble and a physical uplink shared channel PUSCH;

[0362] At least one of the preamble related information and the PUSCH related information indicates location related information of the terminal.

[0363] The terminal sends message A including a preamble and a PUSCH in the two-step random access. Since at least one of the relevant information of the preamble and the relevant information of the PUSCH can indicate the location-related information of the terminal, the network device can receive the message A, that is, receive the preamble and the PUSCH. Further, based on at least one of the relevant information of the preamble and the relevant information of the PUSCH, the location-related information of the terminal can be understood to determine the sending-related information of message B in the two-step random access, so as to realize random access in a cell free scenario.

[0364] Specifically, the embodiment of the present application also provides a network device. Fig.10As shown, the network device 1000 includes: an antenna 1001, a radio frequency device 1002, and a baseband device 1003. The antenna 1001 is connected to the radio frequency device 1002. In the uplink direction, the radio frequency device 1002 receives information through the antenna 1001 and sends the received information to the baseband device 1003 for processing. In the downlink direction, the baseband device 1003 processes the information to be sent and sends it to the radio frequency device 1002, and the radio frequency device 1002 processes the received information and sends it out through the antenna 1001.

[0365] The frequency band processing device may be located in the baseband device 1003 . The method performed by the network device in the above embodiment may be implemented in the baseband device 1003 . The baseband device 1003 includes a processor 1004 and a memory 1005 .

[0366] The baseband device 1003 may include, for example, at least one baseband board on which a plurality of chips are arranged. Fig.10 As shown, one of the chips is, for example, a processor 1004, which is connected to a memory 1005 to call a program in the memory 1005 to execute the network device operations shown in the above method embodiment.

[0367] The baseband device 1003 may further include a network interface 1006 for exchanging information with the radio frequency device 1002 . The interface may be, for example, a common public radio interface (CPRI).

[0368] Specifically, the network device of the embodiment of the present application further includes: instructions or programs stored in the memory 1005 and executable on the processor 1004, and the processor 1004 calls the instructions or programs in the memory 1005 to execute. Figure 7 The methods executed by the modules shown achieve the same technical effects, and therefore will not be described here in detail to avoid repetition.

[0369] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the random access method executed by the terminal or the random access method embodiment executed by the network device are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0370] The processor is the processor in the communication device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0371] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the above-mentioned random access method executed by the terminal, or the various processes of the random access method embodiment executed by the network device, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0372] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0373] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0374] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a disk, or an optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0375] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A random access method, characterized in that: Executed by the terminal, including: Sending message A in two-step random access; The message A includes a preamble and a physical uplink shared channel PUSCH; The relevant information of the preamble indicates the relevant information of the terminal's location, or the relevant information of the preamble and the relevant information of the PUSCH jointly indicate the relevant information of the terminal's location.

2. The method according to claim 1, characterized in that After sending the message A in the two-step random access, the method further includes: Receiving a message B in a two-step random access sent by at least one first node; The sending related information of the message B is associated with at least one of the related information of the preamble and the related information of the PUSCH; The sending-related information of message B includes at least one of the following: identification information of the at least one first node; Send the beam related information of the message B.

3. The method according to claim 1, characterized in that When the relevant information of the preamble code and the relevant information of the PUSCH jointly indicate the location related information of the terminal, the relevant information of the preamble code indicates the first information of the location related information, and the relevant information of the PUSCH indicates the second information of the location related information.

4. The method according to claim 1, characterized in that Before sending the message A in the two-step random access, the method further includes: Measuring N1 first measurement signals to determine the location-related information of the terminal; Determine at least one of the following based on the location-related information: Related information of the preamble; The PUSCH related information; The N1 first measurement signals are sent by at least one first node, and N1 is an integer greater than or equal to 1.

5. The method according to claim 1, characterized in that Before sending the message A in the two-step random access, the method further includes: N2 first measurement signals are measured to determine relevant information of the preamble code; wherein the N2 first measurement signals are sent by at least one first node, and N2 is an integer greater than or equal to 1.

6. The method according to claim 1, characterized in that The relevant information of the preamble includes at least one of the following: Sequence information; Time domain resource information; Frequency domain resource information.

7. The method according to claim 1, characterized in that The PUSCH related information includes at least one of the following: Bit information carried by the PUSCH; Demodulation reference signal related information of the PUSCH; Time domain resource information of the PUSCH; The frequency domain resource information of the PUSCH.

8. The method according to claim 1, characterized in that The location-related information includes at least one of the following: Location information; A measurement that is related to position.

9. The method according to claim 1, characterized in that: Before sending the message A in the two-step random access, the method further includes: Measuring N3 first measurement signals to determine at least one of a transmit power and a transmit carrier of the message A; wherein the N3 first measurement signals are sent by at least one first node, and N3 is an integer greater than or equal to 1; The sending of message A in two-step random access includes: The message A is sent according to at least one of the transmission power and the transmission carrier of the message A.

10. The method according to claim 9, characterized in that Determining the transmission power of the message A includes: Determine N3 path loss values ​​respectively according to the received powers of the N3 first measurement signals; The transmission power of the message A is determined according to the N3 path loss values.

11. The method according to claim 1, characterized in that: Also includes: Sending a first reference signal associated with a terminal identifier; Receiving a message B in a two-step random access sent by at least one first node; The sending-related information of the message B is associated with the location-related information determined by the first reference signal; The sending-related information of message B includes at least one of the following: identification information of the at least one first node; Send the beam related information of the message B.

12. The method according to claim 11, characterized in that The first reference signal is sent before or after the PUSCH, or on at least one symbol of a time slot where the PUSCH is located.

13. The method according to claim 2 or 11, characterized in that: Also includes: receiving N4 second measurement signals; wherein the N4 second measurement signals are sent by the at least one first node, and N4 is an integer greater than or equal to 1; The message B is received according to the beam-related information of the N4 second measurement signals.

14. The method according to claim 1, characterized in that Also includes: Receive relevant information of multiple nodes; The relevant information of the multiple nodes includes at least one of the following: identifications of the plurality of nodes; The locations of the plurality of nodes; Information of synchronization signals or reference signals associated with the multiple nodes; Random access resource information associated with the multiple nodes.

15. A random access method, characterized in that: Performed by network devices, including: Receiving a message A in a two-step random access, wherein the message A includes a preamble and a PUSCH; Acquire at least one of the relevant information of the preamble and the relevant information of the PUSCH; The relevant information of the preamble indicates the relevant information of the terminal's location, or the relevant information of the preamble and the relevant information of the PUSCH jointly indicate the relevant information of the terminal's location.

16. The method according to claim 15, characterized in that After acquiring at least one of the relevant information of the preamble and the relevant information of the PUSCH, the method further includes: Determine, according to at least one of the relevant information of the preamble and the relevant information of the PUSCH, the sending relevant information of the message B in the two-step random access; Send the message B through at least one first node according to the sending related information of the message B; The sending related information of the message B is associated with at least one of the related information of the preamble and the related information of the PUSCH; The sending-related information of message B includes at least one of the following: identification information of the at least one first node; Send the beam related information of the message B.

17. The method according to claim 15, characterized in that When the relevant information of the preamble code and the relevant information of the PUSCH jointly indicate the location related information of the terminal, the relevant information of the preamble code indicates the first information of the location related information, and the relevant information of the PUSCH indicates the second information of the location related information.

18. The method according to claim 15, characterized in that Also includes: Sending N1 first measurement signals through at least one first node, where the N1 first measurement signals are used to determine location-related information of the terminal; N1 is an integer greater than or equal to 1.

19. The method according to claim 15, characterized in that Also includes: Sending N2 first measurement signals through at least one first node, where the N2 first measurement signals are used to determine relevant information of the preamble code; N2 is an integer greater than or equal to 1.

20. The method according to claim 15, characterized in that The relevant information of the preamble includes at least one of the following: Sequence information; Time domain resource information; Frequency domain resource information.

21. The method according to claim 15, characterized in that The PUSCH related information includes at least one of the following: Bit information carried by the PUSCH; Demodulation reference signal related information of the PUSCH; Time domain resource information of the PUSCH; The frequency domain resource information of the PUSCH.

22. The method according to claim 15, characterized in that The location-related information includes at least one of the following: Location information; A measurement that is related to position.

23. The method according to claim 15, characterized in that Also includes: Sending N3 first measurement signals through at least one first node, where the N3 first measurement signals are used to determine at least one of a transmit power and a transmit carrier of the message A; N3 is an integer greater than or equal to 1.

24. The method according to claim 15, characterized in that Also includes: Receiving a first reference signal associated with a terminal identifier; Determining, according to the first reference signal, information related to sending of message B in two-step random access; Send the message B through at least one first node according to the sending related information of the message B; The sending-related information of the message B includes at least one of the following: identification information of the at least one first node; Send the beam related information of the message B.

25. The method according to claim 24, characterized in that The first reference signal is sent before or after the PUSCH, or on at least one symbol of a time slot where the PUSCH is located.

26. The method according to claim 16 or 25, characterized in that Also includes: Sending N4 second measurement signals through at least one first node, where the N4 second measurement signals are used to determine beam-related information for receiving the message B; The beam-related information received for the message B is the beam-related information of the N4 second measurement signals, where N is an integer greater than or equal to 1.

27. The method according to claim 15, characterized in that Also includes: Send relevant information of multiple nodes; The relevant information of the multiple nodes includes at least one of the following: identifications of the plurality of nodes; The locations of the plurality of nodes; Information of synchronization signals or reference signals associated with the multiple nodes; Random access resource information associated with the multiple nodes.

28. The method according to claim 16, characterized in that The determining, according to at least one of the relevant information of the preamble and the relevant information of the PUSCH, the sending relevant information of the message B in the two-step random access includes: Determine, according to at least one of the preamble related information and the PUSCH related information, the location related information of the terminal; Determine, according to the location-related information of the terminal, the sending-related information associated with the location of the terminal; Among them, the sending-related information associated with the terminal location is the sending-related information of the message B.

29. A random access device, characterized in that: include: A first sending module, used to send a message A in a two-step random access; The message A includes a preamble and a physical uplink shared channel PUSCH; The relevant information of the preamble indicates the relevant information of the terminal's location, or the relevant information of the preamble and the relevant information of the PUSCH jointly indicate the relevant information of the terminal's location.

30. The device according to claim 29, characterized in that Also includes: A first receiving module, configured to receive a message B in a two-step random access sent by at least one first node; The sending related information of the message B is associated with at least one of the related information of the preamble and the related information of the PUSCH; The sending-related information of message B includes at least one of the following: identification information of the at least one first node; Send the beam related information of the message B.

31. The device according to claim 29, characterized in that When the relevant information of the preamble code and the relevant information of the PUSCH jointly indicate the location related information of the terminal, the relevant information of the preamble code indicates the first information of the location related information, and the relevant information of the PUSCH indicates the second information of the location related information.

32. A random access device, characterized in that: include: A second receiving module, configured to receive a message A in a two-step random access, wherein the message A includes a preamble and a PUSCH; An acquisition module, configured to acquire at least one of the preamble related information and the PUSCH related information; The relevant information of the preamble indicates the relevant information of the terminal's location, or the relevant information of the preamble and the relevant information of the PUSCH jointly indicate the relevant information of the terminal's location.

33. The device according to claim 32, characterized in that Also includes: A first determining module, configured to determine, according to at least one of the relevant information of the preamble and the relevant information of the PUSCH, the sending relevant information of the message B in the two-step random access; A second sending module, configured to send the message B through at least one first node according to the sending related information of the message B; The sending related information of the message B is associated with at least one of the related information of the preamble and the related information of the PUSCH; The sending-related information of message B includes at least one of the following: identification information of the at least one first node; Send the beam related information of the message B.

34. The device according to claim 32, characterized in that When the relevant information of the preamble code and the relevant information of the PUSCH jointly indicate the location related information of the terminal, the relevant information of the preamble code indicates the first information of the location related information, and the relevant information of the PUSCH indicates the second information of the location related information.

35. A communication device, characterized in that: The method comprises a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the random access method according to any one of claims 1 to 14, or implements the steps of the random access method according to any one of claims 15 to 28.

36. A readable storage medium, characterized in that: The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, the random access method according to any one of claims 1 to 14 is implemented, or the steps of the random access method according to any one of claims 15 to 28 are implemented.

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