Transmission method and device, communication equipment and storage medium

Abstract

The invention discloses a transmission method and device, communication equipment and a storage medium, and belongs to the technical field of communication, and the transmission method comprises the steps that a terminal determines Y random access channel opportunity (RO) groups associated with the same target signal, and Y is an integer greater than zero; and the terminal sends the leader sequences on the Y RO groups, and the leader sequences sent by each group of RO are the same.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to a transmission method, apparatus, communication equipment and storage medium. Background Art

[0002] Uplink synchronization means that in the same cell, uplink signals sent by terminals at different locations using the same time slot arrive at the network side at the same time, that is, signals from different terminals in the same time slot are synchronized when arriving at the network side equipment, thereby reducing uplink multi-access interference and multipath interference between terminals in the cell, thereby improving communication quality. It can be seen that uplink synchronization is crucial for communication between terminals and the network side.

[0003] Among them, in a multiple transmit-receive point (TRP) scenario, the terminal may receive a physical downlink control channel (PDCCH) or a physical downlink shared channel (PDSCH) sent by multiple TRPs, or the terminal may send a physical uplink control channel (PUCCH) to multiple TRPs. Here, in order to further improve the communication quality, the terminal can be synchronized uplink with each TRP. However, in the prior art, uplink synchronization between the terminal and one TRP can only be achieved at a time, and the synchronization efficiency is low. Summary of the invention

[0004] The embodiments of the present application provide a transmission method, apparatus, communication equipment and storage medium, which can solve the problem of low uplink synchronization efficiency in multi-TRP scenarios.

[0005] In a first aspect, a transmission method is provided, the method comprising:

[0006] The terminal determines Y random access channel opportunity RO groups associated with the same target signal, where Y is an integer greater than zero;

[0007] The terminal sends a preamble sequence on Y RO groups, wherein the preamble sequence sent by each group of ROs is the same.

[0008] In a second aspect, a transmission method is provided, the method comprising:

[0009] The first network side device configures a packet number Y of a transmission opportunity RO for sending a preamble sequence;

[0010] Wherein, Y is an integer greater than zero, the ROs in the Y groups are associated with the same target signal, and the ROs in the same group are used to send the same preamble sequence.

[0011] In a third aspect, a transmission method is provided, the method comprising:

[0012] The second network side device receives the leading sequence;

[0013] The second network side device sends target information to the first network side device, wherein the target information is used to indicate the transmission opportunity RO or RO group where the preamble sequence received by the second network side device is located.

[0014] In a fourth aspect, a transmission method is provided, the method comprising:

[0015] The terminal receives uplink monitoring reference signal SRS resource set configuration information;

[0016] The terminal sends an SRS according to the SRS resource set configuration information;

[0017] The spatial relationship information of the SRS resources in the SRS resource set and at least one item in the SRS resource set are associated with at least one of the following:

[0018] RO index of the physical random access channel PRACH;

[0019] Preamble sequence index for PRACH transmission;

[0020] RACH configuration index.

[0021] In a fifth aspect, a transmission method is provided, the method comprising:

[0022] The first network side device sends uplink monitoring reference signal SRS resource set configuration information;

[0023] The first network side device receives the SRS sent by the terminal according to the SRS resource configuration information;

[0024] The spatial relationship information of the SRS resources in the SRS resource set and at least one item in the SRS resource set are associated with at least one of the following:

[0025] RO index of the physical random access channel PRACH;

[0026] Preamble sequence index for PRACH transmission;

[0027] RACH configuration index.

[0028] In a sixth aspect, a transmission device is provided, applied to a terminal, the device comprising:

[0029] A first determination module is used to determine Y random access channel opportunity RO groups associated with the same target signal, where Y is an integer greater than zero;

[0030] The first sending module is used to send a preamble sequence on Y RO groups, wherein the preamble sequence sent by each group of ROs is the same.

[0031] In a seventh aspect, a transmission device is provided, which is applied to a first network side device, and the device includes:

[0032] A configuration module, used to configure the number of packets Y of the transmission opportunity RO used to send the preamble sequence;

[0033] Wherein, Y is an integer greater than zero, the ROs in the Y groups are associated with the same target signal, and the ROs in the same group are used to send the same preamble sequence.

[0034] In an eighth aspect, a transmission device is provided, which is applied to a second network side device, and the device includes:

[0035] A first receiving module, configured to receive a leading sequence;

[0036] The second sending module is used to send target information to the first network side device, wherein the target information is used to indicate the transmission opportunity RO or RO group where the preamble sequence received by the second network side device is located.

[0037] In a ninth aspect, a transmission device is provided, applied to a terminal, the device comprising:

[0038] A second receiving module is used to receive uplink monitoring reference signal SRS resource set configuration information;

[0039] A third sending module, configured to send the SRS according to the SRS resource set configuration information;

[0040] The spatial relationship information of the SRS resources in the SRS resource set and at least one item in the SRS resource set are associated with at least one of the following:

[0041] RO index of the physical random access channel PRACH;

[0042] Preamble sequence index for PRACH transmission;

[0043] RACH configuration index.

[0044] In a tenth aspect, a transmission device is provided, applied to a first network side device, the device comprising:

[0045] A fourth sending module, configured to send uplink monitoring reference signal SRS resource set configuration information;

[0046] A third receiving module, configured to receive an SRS sent by a terminal according to the SRS resource configuration information;

[0047] The spatial relationship information of the SRS resources in the SRS resource set and at least one item in the SRS resource set are associated with at least one of the following:

[0048] RO index of the physical random access channel PRACH;

[0049] Preamble sequence index for PRACH transmission;

[0050] RACH configuration index.

[0051] In the eleventh aspect, a terminal is provided, which includes a processor and a memory, wherein the memory stores a program or instruction that can be executed on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect or the fourth aspect are implemented.

[0052] In a twelfth aspect, a terminal is provided, including a processor and a communication interface;

[0053] The processor is used to determine Y random access channel opportunity RO groups associated with the same target signal, where Y is an integer greater than zero; the communication interface is used to send preamble sequences on the Y RO groups, where the preamble sequences sent by each group of RO are the same;

[0054] or,

[0055] The communication interface is used to receive uplink monitoring reference signal SRS resource set configuration information; send SRS according to the SRS resource set configuration information;

[0056] The spatial relationship information of the SRS resources in the SRS resource set and at least one item in the SRS resource set are associated with at least one of the following:

[0057] RO index of the physical random access channel PRACH;

[0058] Preamble sequence index for PRACH transmission;

[0059] RACH configuration index.

[0060] In the thirteenth aspect, a network side device is provided, which terminal includes a processor and a memory, the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the second aspect, the third aspect, or the fifth aspect are implemented.

[0061] In a fourteenth aspect, a network side device is provided, including a processor and a communication interface;

[0062] When the network side device is used as the first network side device, the processor is used to configure the number of groups Y of transmission opportunities RO for sending the preamble sequence; wherein Y is an integer greater than zero, the ROs in the Y groups are associated with the same target signal, and the ROs in the same group are used to send the same preamble sequence;

[0063] or,

[0064] When the network side device is used as the second network side device, the communication interface is used to receive the preamble sequence; send target information to the first network side device, wherein the target information is used to indicate the transmission opportunity RO or RO group where the preamble sequence received by the second network side device is located;

[0065] or,

[0066] When the network side device is used as the first network side device, the communication interface is used to send uplink monitoring reference signal SRS resource set configuration information; receive the SRS sent by the terminal according to the SRS resource configuration information;

[0067] The spatial relationship information of the SRS resources in the SRS resource set and at least one item in the SRS resource set are associated with at least one of the following:

[0068] RO index of the physical random access channel PRACH;

[0069] Preamble sequence index for PRACH transmission;

[0070] RACH configuration index.

[0071] In the fifteenth aspect, a transmission system is provided, including: a terminal, a first network side device and a second network side device, the terminal can be used to execute the steps of the method described in the first aspect or the fourth aspect, the first network side device can be used to execute the steps of the method described in the second aspect or the fifth aspect, and the second network side device can be used to execute the steps of the method described in the third aspect.

[0072] In the sixteenth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect, the second aspect, the third aspect, the fourth aspect, or the fifth aspect are implemented.

[0073] In the seventeenth aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps of the method described in the first aspect, the second aspect, the third aspect, the fourth aspect, or the fifth aspect.

[0074] In the eighteenth aspect, a computer program / program product is provided, wherein the computer program / program product is stored in a storage medium, and the program / program product is executed by at least one processor to implement the steps of the method described in the first aspect or the second aspect or the third aspect or the fourth aspect or the fifth aspect.

[0075] In an embodiment of the present application, the terminal can determine Y transmission occasion (RO) groups associated with the same target signal, thereby sending a preamble sequence on Y RO groups, where Y is an integer greater than zero, and the preamble sequence sent by each group of RO is the same. It can be seen that in an embodiment of the present application, the terminal can send a preamble sequence on at least one group of ROs associated with the same target signal, and the preamble sequences sent on the ROs in the same group are the same. In this way, the same preamble sequence can be sent on multiple ROs, and at least one preamble sequence can be sent, which increases the probability of multiple TRPs receiving the preamble sequence, thereby laying the foundation for simultaneously realizing uplink synchronization of the terminal with multiple TRPs, and further improving the uplink synchronization efficiency in a multi-TRP scenario. BRIEF DESCRIPTION OF THE DRAWINGS

[0076] Figure 1 is a block diagram of a wireless communication system to which the embodiments of the present application can be applied;

[0077] Figure 2 It is a schematic diagram of the mapping relationship between SSB and RO in an embodiment of the present application;

[0078] Figure 3 is a flow chart of a transmission method in an embodiment of the present application;

[0079] Figure 4 is a flow chart of another transmission method in an embodiment of the present application;

[0080] Figure 5 is a flow chart of another transmission method in an embodiment of the present application;

[0081] Figure 6 is a flow chart of another transmission method in an embodiment of the present application;

[0082] Figure 7 is a flow chart of another transmission method in an embodiment of the present application;

[0083] Figure 8is a structural block diagram of a transmission device in an embodiment of the present application;

[0084] Fig. 9 is a structural block diagram of another transmission device in an embodiment of the present application;

[0085] Fig.10 is a structural block diagram of another transmission device in an embodiment of the present application;

[0086] Fig.11 is a structural block diagram of another transmission device in an embodiment of the present application;

[0087] Fig.12 is a structural block diagram of another transmission device in an embodiment of the present application;

[0088] Fig.13 is a structural block diagram of a communication device in an embodiment of the present application;

[0089] Fig.14 is a structural block diagram of a terminal in an embodiment of the present application;

[0090] Fig.15 It is a structural block diagram of a network side device in an embodiment of the present application. DETAILED DESCRIPTION

[0091] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0092] The terms "first", "second", etc. 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 terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of one type, and the number of objects is not limited, for example, the first object can be one or more. In addition, "or" in the present application represents at least one of the connected objects. For example, "A or B" covers three schemes, namely, Scheme 1: including A but not including B; Scheme 2: including B but not including A; Scheme 3: including both A and B. The character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0093] The term "indication" in this application can be a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, operations to be performed, or request results in the sent indication; an indirect indication can be understood as the receiver determining the corresponding information according to the indication sent by the sender, or making a judgment and determining the operation to be performed or the request result according to the judgment result.

[0094] 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) or 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 systems other than NR systems, such as the 6th generation (6 th Generation, 6G) communication system.

[0095] 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 side device 12. Among them, the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (Ultra-mobile Personal Computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), an augmented reality (Augmented Reality, AR), a virtual reality (Virtual Reality, VR) device, a robot, a wearable device (Wearable Device), an aircraft (flight vehicle), a vehicle-mounted device (Vehicle User Equipment, VUE), a ship-mounted device, a pedestrian terminal (Pedestrian User Equipment, PUE), a smart home (home appliances with wireless communication functions, such as refrigerators, televisions, washing machines or furniture, etc.), a game console, a personal computer (Personal Computer, PC), a teller machine or a self-service machine and other terminal side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application.

[0096] The network side device 12 may include an access network device or a core network device, wherein the access network device may also be referred to as a radio access network (RAN) device, a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (WLAN) access point (AS) or a wireless fidelity (WiFi) node, etc. Among them, the base station may be referred to as a Node B (NodeB, NB), an evolved Node B (Evolved Node B, eNB), a next generation Node B (the next generation Node B, gNB), a New Radio Node B (New Radio Node B, NR Node B), an access point, a Relay Base Station (RBS), a Serving Base Station (SBS), 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 home Node B (home evolved Node B, HNB), a home evolved Node B (home evolved Node B), a Transmission Reception Point (Transmission Reception Point, TRP) or other appropriate terms in the relevant 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 embodiments of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0097] In order to facilitate understanding of the transmission method of the embodiment of the present application, the following related technologies are first introduced:

[0098] 1. Uplink (UL) beam training

[0099] The network uses the parameter "SRS-ResourceSet" in the Radio Resource Control (RRC) signaling to configure one or more SRS resource sets for the UE. For each SRS resource set, the network uses the parameter "SRS-Resource" in the RRC signaling to configure at least one SRS resource, where the maximum number is determined by the UE capability.

[0100] The purpose of the SRS resource set is determined by the parameter "usage" in the SRS-ResourceSet in the RRC signaling. When the network sets the usage to BeamManagement, for each SRS resource set, only one SRS resource can be sent at an uplink transmission time. SRS resources in different SRS resource sets can be transmitted simultaneously by the UE.

[0101] The network implements the beam indication of SRS by configuring the spatial relation between the reference signal (reference RS) and the target uplink monitoring reference signal (target SRS). The RRC parameter used is the spatial relation information (SpatialRelationInfo), which further includes the reference signal identifier (reference RS ID). The reference RS can be: synchronization signal / physical broadcast channel block (Synchronization Signal / PBCH Block) (or synchronization signal block (SSB)), channel state information reference signal (Channel State Information-Reference Signal, CSI-RS), SRS.

[0102] Specifically, when the SRS type is periodic SRS, the network configures space (spatial relation) for the SRS resource through RRC signaling; when the SRS type is semi-persistent SRS, the network activates one from a set of spatial relations configured by RRC through a Media Access Control Control Element (MAC CE) command; when the SRS type is aperiodic SRS, the network configures spatialrelation for the SRS resource through RRC signaling. For aperiodic SRS, the UE receives downlink control information (DCI) sent by the network side, and the network uses at least one state in the DCI field to trigger at least one of the configured SRS resource sets.

[0103] It should be noted that the spatial filter, spatial domain transmission filter, transmission configuration indication state, quasi co-location (QCL) type D related information, etc. can characterize the above-mentioned beam.

[0104] 2. Physical Random Access Channel (PRACH) Transmission

[0105] In the related art, PRACH transmission includes a contention random access procedure and a non-contention random access procedure.

[0106] In the contention-based 4-step random access procedure (RACH), the UE first sends Msg-1 (i.e., random access preamble) to the network;

[0107] Secondly, after the network detects the Preamble, it will send Msg2 or Random Access Response (RAR) message;

[0108] Msg2 is scheduled by DCI scrambled by Random Access Radio Network Temporary Identity (RA-RNTI). RA-RNTI is related to the PRACH transmission occasion (RO) resource used by the UE to send Msg-1, and is calculated as follows: RA-RNTI = 1 + s_id + 14 × t_id + 14 × 80 × f_id + 14 × 80 × 8 × ul_carrier_id;

[0109] Here, s_id represents the index of the first OFDM symbol of the PRACH occasion (0≤s_id<14);

[0110] t_id represents the index of the first time slot of the PRACH opportunity in the system frame (0≤t_id<80), where the subcarrier spacing used to determine t_id is based on the value of μ, where μ={0,1,2,3} or μ={5,6}, or, t_id is the index of the 120 kHz time slot in the system frame containing the PRACH opportunity (0≤t_id<80);

[0111] f_id represents the index of the PRACH occasion in the frequency domain (0≤f_id<8);

[0112] ul_carrier_id indicates the UL carrier used for random access preamble transmission (0 for normal uplink (NUL) carrier, 1 for supplementary uplink (SUL) carrier).

[0113] The Msg2 message contains the number of the preamble code detected by the network (RACH preamble ID, RAPID), and the uplink radio resources allocated to the physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) for the UE to send Msg3. Optionally, the RAR grant field is shown in Table 1 below:

[0114] Table 1 RAR grant fields

[0115]

[0116]

[0117] It is worth pointing out that Table 1 is only an exemplary description of the RAR authorization field, and not all of the control information listed in Table 1 is necessarily included in the RAR authorization field, and the control information included in the RAR authorization field is not limited to those listed in Table 1. Accordingly, the number of bits corresponding to the control information in the RAR authorization field is not limited to the examples in Table 1.

[0118] Once again, after receiving Msg2, the UE confirms that at least one of the numbers of the Preamble carried in Msg2 is consistent with the number of the Preamble it sent, and then sends Msg3 containing contention resolution information according to the resources indicated by the RAR; if the network does not receive Msg3, it can schedule the retransmission of the Physical Uplink Shared Channel (PUSCH) of Msg3 in the Physical Downlink Control Channel (PDCCH) scrambled by the Temporary Cell Network Temporary Identity (TC-RNTI). After receiving Msg3, the network will send Msg4 containing contention resolution information; after receiving Msg4, the UE confirms that the contention resolution information is consistent with the one it sent in Msg3, and the 4-step random access is completed.

[0119] For the contention random access process, different UEs randomly select Preamble for transmission, so different UEs may select the same Preamble to send on the same time-frequency radio resources (i.e., RO resources). This situation can be understood as a UE Preamble conflict. In this case, different UEs will receive the same RAR. At this time, different UEs will transmit Msg3 PUSCH according to the scheduling information in the RAR UL grant. Among them, the network can only decode the PUSCH (including contention resolution information) sent by one UE on a Msg3 PUSCH scheduling resource, so the network will include the contention resolution information received in Msg3 in Msg4. If the contention resolution information in Msg4 received by the UE matches the contention resolution information sent by the UE in Msg3 PUSCH, the UE considers that the contention resolution is successful. If it does not match, the contention resolution is considered unsuccessful, and the UE will reselect resources and make the next random access attempt.

[0120] 3. Selection of random access resources

[0121] In NR, a cell can configure multiple frequency division multiplexing (FDM) ROs at a time domain location for transmitting PRACH. At a time, the number of FDM ROs can be: {1, 2, 4, 8}, which is configured and determined by the high-level parameter "msg1-FDM". Figure 2 As shown, at one moment, there are 8 RO resources distributed on different frequencies.

[0122] The time domain position of the RO that can send the Preamble is determined by the PRACH configuration index (PRACHConfigurationIndex), and the frequency domain resources are determined by the high-level parameters (msg1-FDM). RA ∈{0,1,…,M-1}, where M is equal to the high-level parameter msg1-FDM. The maximum number of preamble sets on a RO is 64. Figure 2 As shown, the RO resources are numbered RO#0 to RO#7 in order from low to high frequency.

[0123] In NR, there is an association between the RO and the SSB (i.e., SS / PBCH block) actually sent. One SSB may be associated with multiple ROs, or multiple SSBs may be associated with one RO (in this case, different SSBs correspond to different Preamble subsets on the RO), which is configured by the network through the parameter "number of SSBs mapped to each RO (ssb-perRACH-OccasionAndCB-PreamblesPerSSB)", as shown in Table 2 below.

[0124] Table 2 Configuration of ssb-perRACH-OccasionAndCB-PreamblesPerSSB

[0125]

[0126] Usually, the base station can use different beams to send different SSBs, where the number of SSBs is configured by the "ssb-PositionsInBurst" parameter. For FR2, the maximum number of SSBs is 64. The UE selects the RO or "RO and preamble combination" associated with the SSB with a good signal according to the strength of the received downlink beam or SSB to send Msg1. In this way, the network can determine the SSB selected by the UE based on the RO or "RO and preamble combination" of the received Preamble, and send Msg2 on the downlink beam corresponding to the SSB to ensure the reception quality of the downlink signal.

[0127] like Figure 2, the number of ROs of FDM at a time is 8, the number of SSBs is 4, and each SSB is associated with 2 ROs. The UE first selects an SSB with RSRP higher than the threshold based on the reference signal received power (RSRP) of the received beam (SSB); if the RSRP of multiple SSBs is higher than the threshold, the terminal can select any SSB with RSRP higher than the threshold; when there is no SSB with RSRP higher than the threshold, the UE selects an SSB based on the implementation. If the UE determines to send PRACH or Msg1 or Preamble on the RO corresponding to SSB#0, the UE selects an RO from RO#0 and RO#1 and selects a Preamble for transmission.

[0128] The transmission method provided in the embodiment of the present application is described in detail below through some embodiments and their application scenarios in combination with the accompanying drawings.

[0129] In a first aspect, an embodiment of the present application provides a transmission method, such as Figure 3 As shown, the method may include the following steps 301 to 302:

[0130] Step 301: The terminal determines Y random access channel opportunity RO groups associated with the same target signal.

[0131] Among them, the target signal can be selected according to the channel quality of the target signal (such as RSRP), for example, the target signal is the one with the best channel quality among multiple target signals received by the terminal, or the target signal is one of the multiple target signals received by the terminal whose channel quality is higher than the first threshold; it can be understood that the target signal can also be indicated by network signaling.

[0132] Optionally, the target signal is one of SSB, channel state information reference signal (Channel State Information-Reference Signal, CSI-RS), and sounding reference signal (Sounding Reference Signal, SRS).

[0133] It should be noted that if the target signal is SRS, the network side will configure RACH resources associated with SRS.

[0134] It should be noted that the Y RO groups may include at least some of the ROs associated with the target signal. For example, multiple ROs may be randomly selected from the ROs associated with the target signal, and the selected multiple ROs may be divided into at least one group.

[0135] In addition, the Y RO groups may be divided according to the order of the ROs in the time domain, for example, every v1 adjacent ROs belong to one group, and v1 is greater than 0. It is understandable that the division method of the Y RO groups is not limited to this.

[0136] In addition, Y is an integer greater than 0. Optionally, the value of Y may be one of 1, 2, and 4; further, the value of Y may be configured or indicated by the network side.

[0137] Step 302: The terminal sends a preamble sequence on Y RO packets.

[0138] The preamble sequence sent by each group of ROs is the same.

[0139] For example, when Y=1, the same preamble sequence is sent on the RO in this packet;

[0140] For example, when Y=2, the first preamble sequence is sent on the ROs in the first group, and the second preamble sequence is sent on the ROs in the second group. The first preamble sequence is different from the second preamble sequence.

[0141] For example, when Y=4, the first preamble sequence is sent on the ROs in the first group, the second preamble sequence is sent on the ROs in the second group, the third preamble sequence is sent on the ROs in the third group, and the fourth preamble sequence is sent on the ROs in the fourth group. The first preamble sequence to the fourth preamble sequence are different.

[0142] It should be noted that in step 302, the preamble sequence may be sent via Msg1 or MsgA, wherein Msg1 is a random access request message in four-step random access, and MsgA is a random access request message in two-step random access.

[0143] It can be seen that in an embodiment of the present application, the terminal can send a preamble sequence on at least one group of ROs associated with the same target signal, and the preamble sequences sent on the ROs in the same group are the same. In this way, the same preamble sequence can be sent on multiple ROs, and at least one preamble sequence can be sent, which increases the probability of multiple TRPs receiving the preamble sequence, thereby laying the foundation for simultaneously achieving uplink synchronization of the terminal with multiple TRPs, and further improving the uplink synchronization efficiency in the multi-TRP scenario.

[0144] Optionally, the terminal sends a preamble sequence on Y RO packets, including:

[0145] Item A-1: ​​When Y=1, the terminal transmits preamble sequences on ROs in multiple subsets of the RO group, respectively, wherein the transmit beams on ROs in the same subset are the same, and the transmit beams on ROs in different subsets are different;

[0146] Item A-2: When Y is greater than 1, the terminal uses different transmission beams to send preamble sequences on Y RO groups respectively, wherein the transmission beams corresponding to the same RO group are the same, and the transmission beams corresponding to different groups are different. When Y=1, the subset division method of the RO in a group can be, for example, that every adjacent v2 ROs in a group belong to a subset, or, the ROs with odd indexes in a group belong to a subset, and the ROs with even indexes belong to a subset.

[0147] It can be seen from the above item A-1 that at least some of the ROs associated with the same target signal can form a group, and then the ROs in the group can be divided into multiple subsets, so that the ROs in the same subset can use the same transmission beam to send the preamble sequence, and the ROs in different subsets use different beams to send the preamble sequence. For example, the group includes four ROs, such as RO-1, RO-2, RO-3, and RO-4. If every two adjacent ROs belong to a subset, the same preamble sequence is sent on RO-1 to RO-4, and the first transmission beam is used on RO-1 and RO-2, and the second transmission beam is used on RO-3 and RO-4, and the first transmission beam is different from the second transmission beam.

[0148] It can be known from the above item A-2 that at least some of the ROs associated with the same target signal can form multiple groups, and the same transmission beam is used to send the same preamble sequence in the same group, and the preamble sequences sent in different groups are different, and the transmission beams are also different. For example, RO-5 and RO-6 belong to one group, and RO-7 and RO-8 belong to another group. Then, the third transmission beam is used to send the fifth preamble sequence on RO-5 and RO-6, and the fourth transmission beam is used to send the sixth preamble sequence on RO-7 and RO-8. The third transmission beam is different from the fourth transmission beam, and the fifth preamble sequence is different from the sixth preamble sequence.

[0149] It can be seen from this that in the embodiment of the present application, the preamble sequence can be sent to multiple TRPs at the same time through RACH beam scanning, thereby further improving the probability of the preamble sequence being received.

[0150] Optionally, the terminal sends a preamble sequence on Y RO packets, including:

[0151] Based on at least one of the following, the terminal sends a preamble on Y RO packets:

[0152] A first signaling for configuring a random access channel RACH;

[0153] First indication information, where the first indication information is used to indicate a sending mode of a preamble sequence or a value of Y;

[0154] The second indication information is used to indicate at least one of a plurality of beams corresponding to different subsets of the same RO group, a plurality of beams corresponding to different RO groups, a first association relationship between Y RO groups and a plurality of beams, and a second association relationship between different subsets of the same RO group and a plurality of beams.

[0155] Here, the first signaling may be downlink control information (Downlink Control Information, DCI).

[0156] It can be seen that if there is at least one of the first signaling configured with RACH, the first indication information and the second indication information, the preamble sequence is sent on Y RO packets based on the method described in items A-1 and A-2 above.

[0157] Optionally, a physical downlink control channel PDCCH signaling for triggering a random access channel RACH includes at least one of the first indication information and the second indication information;

[0158] or,

[0159] The uplink monitoring reference signal SRS resource indication field in the PDCCH signaling that triggers the RACH includes at least one of the first indication information and the second indication information.

[0160] Exemplarily, a new indication field may be introduced in the PDCCH signaling of the RACH to indicate the first indication information; wherein the network side sends the PDCCH signaling to instruct the terminal how to send the RACH, and in the embodiment of the present application, at least one of the first indication information and the second indication information may also be indicated by the PDCCH signaling. That is, if the PDCCH signaling of the RACH includes at least one of the first indication information and the second indication information, the preamble sequence is sent on Y RO groups based on the method described in the above items A-1 and A-2.

[0161] or

[0162] Alternatively, a new indication field may be introduced into the SRS resource indication field to indicate at least one of the first indication information and the second indication information; thus, if the SRS resource indication field includes information for indicating at least one of the first indication information and the second indication information, a leading sequence is sent on Y RO groups based on the method described in items A-1 and A-2 above.

[0163] Optionally, Radio Resource Control (RRC) signaling indicates whether at least one of the first indication information and the second indication information exists.

[0164] That is, the first RRC signaling can be used to indicate whether the PDCCH signaling of the RACH includes the first indication information; the second RRC signaling can be used to indicate whether the PDCCH signaling of the RACH includes the second indication information; the third RRC signaling can be used to indicate whether the SRS resource indication field includes the first indication information; and the fourth RRC signaling can be used to indicate whether the SRS resource indication field includes the second indication information.

[0165] Here, the first RRC signaling to the fourth RRC signaling may be the same or different.

[0166] Optionally, item C-1: when Y=1, the spatial relationship of the m1th RO of the n1th subset or the RO of the n1th subset is determined according to the target signal, wherein the ROs in the group are divided into multiple subsets, and n1 and m1 are both integers greater than zero;

[0167] Item C-2: When Y is greater than 1, the spatial relationship of the m2th RO of the n2th group or the RO in the n2th group is determined according to the target signal, where n2 and m2 are both integers greater than zero.

[0168] In the case of Y=1 above, if each adjacent v2 ROs belong to a subset, then if m1=1, the spatial relationship of the first RO or the continuous v2 ROs starting from the first RO in the group is determined according to the target signal; here, if the target signal is sent by the first network side device, then in this case, the direction range indicated by the spatial relationship of the first RO or the continuous v2 ROs starting from the first RO covers the direction of the terminal pointing to the first network side device, that is, the transmission beam on the first RO or the continuous v2 ROs starting from the first RO points to the first network side device, that is, the device pointed to by the transmission beam on the first RO or the continuous v2 ROs starting from the first RO, and the path loss between the terminal is used as the reference for calculating the path loss deviation. The reference is obtained based on the target signal measurement.

[0169] In the case where Y is greater than 1, for example, n2=1, m2=1, the spatial relationship of the first RO in the first group or the first group RO is determined according to the target signal; here, if the target signal is sent by the first network side device, then in this case, the direction range indicated by the spatial relationship of the first RO in the first group or the first group RO covers the direction of the terminal pointing to the first network side device, that is, the first RO in the first group or the transmission beam on the first group RO points to the first network side device, that is, the first RO in the first group or the first group RO The transmission beam on the device points to the first network side device, that is, the path loss between the device and the terminal is used as the reference for calculating the path loss deviation. The reference is obtained based on the target signal measurement.

[0170] It should be noted that in a multi-TRP scenario, some TRPs can both send and receive, but UL-only TRPs (transmit and receive point) cannot send and can only receive. These UL-only TRPs cannot send downlink signals, so the terminal cannot measure the path loss between it and these UL-only TRPs. However, if the benchmark for the path loss deviation and the deviation of the path loss between the terminal and the UL-only TRP relative to the standard value are known, the path loss between the terminal and the UL-only TRP can be obtained. Through the above C-1 and C-2 items, the benchmark for calculating the path loss deviation can be told to the network.

[0171] Optionally, the method further comprises:

[0172] The terminal receives scheduling information of a random access response, wherein the scheduling information is scrambled using first information;

[0173] The terminal receives the random access response according to the scheduling information;

[0174] The first information includes a random access radio network temporary identifier RA-CRNTI calculated according to the m3th RO of each group in the group to which the first target RO belongs, the first target RO includes the RO where the received preamble sequence is located, and m3 is an integer greater than zero.

[0175] It can be seen that after sending the preamble sequence (ie Msg1), the terminal can receive the scheduling information of the random access response (ie Msg2 or RAR) sent by the first network side device, and thus receive the random access response sent by the first network side device according to the scheduling information.

[0176] It should be noted that the above-mentioned scheduling information in the embodiment of the present application is scrambled by using the first information, and the first information includes the RA-CRNTI calculated from the m3th RO in the group to which the RO where the received preamble sequence belongs belongs.

[0177] For example, when Y=1, a preamble sequence sent by the terminal is received, and there is only one group in which the preamble sequence is located. In this way, the first information includes the RA-CRNTI calculated based on the m3th RO in the group. In this case, after receiving the above scheduling information, the terminal needs to use the RA-CRNTI calculated based on the m3th RO in the group for descrambling.

[0178] or,

[0179] For example, when Y is greater than 1, in the preamble sequence sent by the terminal, the received preamble sequence is in the first group and the second group respectively, then the first information includes: the RA-CRNTI calculated according to the m3th RO in the first group, and the RA-CRNTI calculated according to the m3th RO in the second group. In this case, after receiving the above scheduling information, the terminal needs to use the RA-CRNTI calculated according to the m3th RO in the first group and the RA-CRNTI calculated according to the m3th RO in the second group for descrambling.

[0180] Optionally, m3=1.

[0181] It should also be noted that the above-mentioned received preamble sequence includes the preamble sequence received by multiple network-side devices. For example, in a multi-TRP scenario, the received preamble sequence includes the preamble sequence received by multiple TRPs.

[0182] Among them, in a multi-TRP scenario, some TRPs can be sent and received, but UL-only TRPs cannot be sent and can only be received; it can be seen that in a multi-TRP scenario, the leading sequence sent by the terminal on Y RO groups can be received not only by the TRP that can be sent and received, but also by the UL-only TRP. In this case, in an embodiment of the present application, the TRP that can be sent and received uses the m3th RO of each group in the group to which the RO where the received leading sequence belongs to calculate the RA-CRNTI, and then scrambles the random access response according to the calculated RA-CRNTI, and then sends it to the terminal. In this way, even if the UL-only TRP cannot send a random access response, the TRP that can be sent and received can replace the UL-only TRP to send relevant information during the uplink synchronization process. Here, the terminal can distinguish the random access response information corresponding to different TRPs sent by the transceiver TRP according to different RA-CRNTIs.

[0183] Optionally, the random access response carries at least one of the following D-1 to D-7:

[0184] Item D-1: Index of the first target RO. It can be seen that the random access response can also carry the index of the RO where the received preamble sequence is located, so that the terminal can know that the quality of the beams on these ROs is good, that is, obtain good quality coarse beam information, and realize coarse beam pairing between the terminal and the network side.

[0185] It should be noted that the index of the RO is numbered from 0 to P-1 in sequence from the start time in a group of ROs, where P is the number of ROs in the group of ROs.

[0186] Item D-2: Index of the group to which the first target RO belongs. It can be seen that the random access response can also carry the index of the group to which the RO to which the received leading sequence belongs, so that the terminal can know that the quality of the beams on the groups to which these ROs belong is good, that is, obtain coarse beam information with good quality, and realize coarse beam pairing between the terminal and the network side.

[0187] It should be noted that the index of the RO group is numbered 0...Q-1 in sequence according to the RO groups associated with the same SSB starting from the first RO in each group, where Q is the number of RO groups associated with the same SSB index.

[0188] Item D-3: Index of the leading sequence on the first target RO. It can be seen that the random access response can also carry the index of the received leading sequence, so that the terminal can know that the quality of the beam sending these leading sequences is good, that is, obtain the coarse beam information of good quality, and realize the coarse beam pairing between the terminal and the network side.

[0189] Item D-4: The first power offset value, the first power offset value includes: the deviation of the path loss between at least one device among the devices receiving the leading sequence on the first target RO and the terminal relative to the first reference value; here, the first power offset value is used for the terminal to adjust the transmit power when sending uplink to increase the probability of uplink transmission being received. Optionally, the first power offset value can be obtained by the network side device through uplink measurement. For example, in a multi-TRP scenario, the UL-only TRP cannot be sent but can only be received; then the first power offset value corresponding to the UL-only TRP can be obtained by the TRP through uplink measurement. For example, in a multi-TRP scenario, there are UL-only TRP-A, UL-only TRP-B, and UL-only TRP-C, then the first power offset value includes the deviation of the path loss between UL-only TRP-A and the terminal relative to the first reference value, the deviation of the path loss between UL-onlyTRP-B and the terminal relative to the first reference value, and the deviation of the path loss between UL-only TRP-C and the terminal relative to the first reference value.

[0190] Item D-5: the index of the timing advance group TAG corresponding to the first target RO.

[0191] Item D-6: Time advance command TAC corresponding to the first target RO.

[0192] Item D-7: TAC offset value corresponding to the first target RO.

[0193] For the above items D-5 to D-7, optionally, the ROs using the same beam correspond to the same second information, and the second information includes at least one of TAG and TAC. That is, the TAGs corresponding to the ROs using the same beam may be the same, and the TACs may also be the same.

[0194] The TAC offset value is a deviation relative to the third reference value. When Y=1, the third reference value is the TAC corresponding to the first RO in the group; when Y is greater than 1, the third reference value is the TAC corresponding to the RO in the first group.

[0195] In addition, uplink synchronization manages uplink time through TAG, one TAG corresponds to one uplink time, and after the terminal learns that the TAG and TAC corresponding to the first target RO are sent, it can adjust the uplink time according to the TAC based on the TAG it maintains. The uplink time determined here is used for uplink transmission (such as PUCCH, PUSCH, SRS).

[0196] Optionally, the first reference value is determined according to the target signal or a second target RO;

[0197] Wherein, the second target RO satisfies at least one of the following E-1 to E-3:

[0198] Item E-1: when Y=1, the second target RO includes the m4th RO in the group, where m4 is an integer greater than zero;

[0199] Item E-2: when Y is greater than 1, the second target RO includes the RO in the m5th group;

[0200] Item E-3: The spatial relationship information corresponding to the second target RO is determined according to the target signal.

[0201] The first reference value is determined according to the target signal, that is, the first reference value is determined according to the transmit power and receive power of the target signal, for example, the difference between the transmit power and the receive power of the target signal is the first reference value.

[0202] For the above E-1 item, optionally, m4=1, that is, when Y=1, the second target RO includes the first RO in the group, that is, the first reference value is determined based on the first RO in the group. Generally, when Y=1, the beam on the first RO in the group corresponds to the device that sends the target signal, so the first reference value is determined based on the first RO in the group, that is, the difference between the transmission power and the reception power of the target signal is the first reference value.

[0203] For the above-mentioned item E-2, optionally, m5=1, that is, when Y is greater than 1, the second target RO includes the RO in the first group, that is, the first reference value is determined based on the RO in the first group. Generally, when Y is greater than 1, the beam on the RO in the first group corresponds to the device that sends the target signal. Therefore, the first reference value is determined based on the RO in the first group, that is, the difference between the transmission power and the reception power of the target signal is the first reference value.

[0204] For item E-3 above, if the target signal is sent by the first network side device, the spatial relationship information corresponding to the second target RO is determined based on the target signal, that is, the direction range indicated by the spatial relationship of the second target RO, covering the direction in which the terminal points to the first network side device, that is, the transmitting beam on the second target RO points to the first network side device.

[0205] Optionally, the method further comprises:

[0206] The terminal sends a physical uplink shared channel PUSCH according to the random access response;

[0207] The spatial relationship of the physical uplink shared channel PUSCH (ie, the beam on the PUSCH) is determined according to a third target RO, and the third target RO includes the kth RO among the ROs indicated in the random access response, where k is an integer greater than zero.

[0208] Optionally, k=1, that is, the terminal can determine the PUSCH according to the first RO indicated in the random access response, and thus send the PUSCH.

[0209] Optionally, the method further comprises:

[0210] The terminal receives SRS resource set configuration information;

[0211] The terminal sends an SRS according to the SRS resource set configuration information;

[0212] The spatial relationship information of the SRS resources in the SRS resource set and at least one item in the SRS resource set are associated with at least one item of the following J-1 to J-3:

[0213] Item J-1: RO index of the physical random access channel PRACH (used to indicate the beam on the RO);

[0214] Item J-2: preamble sequence index of PRACH transmission (used to indicate the beam on the RO where the preamble sequence is located);

[0215] Item J-3: RACH configuration index (used to indicate the beam on the RO associated with the RACH configuration).

[0216] In an embodiment of the present application, after receiving the above-mentioned SRS resource set configuration information, the terminal performs beam training according to the SRS resource set configuration information, determines the target beam for sending the SRS, and determines the transmission power, and then sends the SRS through the target beam and the transmission power. Among them, after receiving the SRS, the network side determines the uplink beam according to the received SRS, thereby indicating the uplink beam to the terminal. Here, the network side can indicate the uplink beam in the uplink beam configuration information, that is, the method for the network side to indicate the uplink beam to the terminal can be described in the following F-1 item.

[0217] Among them, for item J-1, at least one item in the SRS resource set is associated with the index of the RO of the PRACH, that is, at least one item in the SRS resource set is associated with the beam on the RO of the PRACH, wherein the beam on the RO belongs to a coarse beam. Therefore, in an embodiment of the present application, at least one item in the SRS resource set is associated with the coarse beam.

[0218] For item J-2, at least one item in the SRS resource set is associated with the leading sequence index of PRACH transmission, that is, at least one item in the SRS resource set is associated with the beam on the RO where the leading sequence index of PRACH transmission is located, wherein the beam on the RO belongs to a coarse beam. Therefore, in an embodiment of the present application, at least one item in the SRS resource set is associated with the coarse beam.

[0219] For item J-3, at least one item in the SRS resource set is associated with the RACH configuration index, that is, at least one item in the SRS resource set is associated with the beam on the RO associated with the RACH configuration index, wherein the beam on the RO belongs to a coarse beam. Therefore, in an embodiment of the present application, at least one item in the SRS resource set is associated with the coarse beam.

[0220] Among them, as mentioned above, the network side can inform the terminal of the coarse beam information with good quality through the above-mentioned D-1 to D-3 items. On this basis, in order to save the time and complexity of beam training, the network side can also "associate at least one item of the spatial relationship information of the SRS resource and the SRS resource set with the RO index of the PRACH, the leading sequence index of the PRACH transmission, and the RACH configuration index" to inform the terminal of the association between the beam indicated by the SRS resource and the coarse beam. In this way, the terminal can know within which coarse beam range to make fine beam adjustments, thereby obtaining the target beam for sending SRS.

[0221] It should be noted that the "coarse beam" in this article refers to the beam information of RO.

[0222] Optionally, the SRS resource set configuration information includes at least one of the following:

[0223] The purpose of the SRS resource set (e.g., beam management, fine beam management);

[0224] Spatial relationship information of SRS resources in the SRS resource set (i.e., beams corresponding to the SRS resources);

[0225] The power control parameter of the SRS resource set (used to determine the transmit power of the SRS).

[0226] Optionally, the power control parameter of the SRS resource set includes at least one of the following H-1 to H-2:

[0227] H-1 item: Path Loss Reference Signal (PL-RS) index;

[0228] Item H-2: a second power offset value, the second power offset value comprising: a path loss between at least one device among the devices receiving the leading sequence and the terminal, a deviation relative to a second reference value, the second reference value being determined based on the path loss reference signal.

[0229] For the above-mentioned H-1 item, the path loss reference signal may be SSB or CSI-RS; wherein, if the H-1 item is defaulted, the terminal may consider the SSB associated with the PRACH associated with the SRS as the path loss reference signal.

[0230] For the above item H-2, the second reference value is determined based on the path loss reference signal, that is, the second reference value is the difference between the transmit power and the receive power of the path loss reference signal. For example, in a multi-TRP scenario, there are UL-only TRP-A, UL-only TRP-B, and UL-only TRP-C. The second power offset value includes the deviation of the path loss between UL-only TRP-A and the terminal relative to the second reference value, the deviation of the path loss between UL-only TRP-B and the terminal relative to the second reference value, and the deviation of the path loss between UL-only TRP-C and the terminal relative to the second reference value.

[0231] When H-2 is defaulted, the terminal may consider that the power offset value associated with the SRS-associated PRACH RO is the second power offset value.

[0232] In addition, the second power offset value is used to determine the transmission power of the target signal. For example, the path loss of the target signal needs to be added with the second power offset value on the basis of the second reference value, so as to determine the transmission power of the target signal according to the obtained result.

[0233] Optionally, the method further comprises the following steps:

[0234] The terminal receives uplink beam (also referred to as TCI state) configuration information;

[0235] The terminal determines, according to the uplink beam configuration information, a transmit beam and a transmit power of a target object, wherein the target object includes at least one of a PUSCH, a physical uplink control channel PUCCH, and an SRS (for example, an SRS not used for beam association);

[0236] The terminal uses the transmission power and transmits the target object through the transmission beam;

[0237] The uplink beam configuration information includes at least one of the following items F-1 to F-4:

[0238] Item F-1: Quasi co-location type D information, wherein the quasi co-location type D information is used to indicate an uplink beam;

[0239] Item F-2: a second power offset value, wherein the second power offset value includes: a path loss between the terminal and at least one device among the devices receiving the leading sequence, and a deviation from a second reference value, wherein the second reference value is determined based on the path loss reference signal; here, the second power offset value can be used to determine the transmit power of at least one of PUSCH, PUCCH, and SRS. For example, the path loss of at least one of PUSCH, PUCCH, and SRS requires adding the second power offset value to the second reference value, thereby determining the transmit power of at least one of PUSCH, PUCCH, and SRS based on the result obtained.

[0240] Item F-3: Timing advance information;

[0241] Item F-4: Path loss reference signal information.

[0242] In addition, the quasi-co-location D information may be the target beam for sending SRS determined by the terminal performing beam training according to the SRS resource set configuration information in the foregoing text, or it may be the beam with better quality indicated by D-1 to D-3 in the foregoing text.

[0243] To summarize, in an embodiment of the present application, for multiple UL-only TRPs, uplink synchronization of multiple TRPs is simultaneously achieved through beam scanning of PRACH; in addition, in this process, the terminal has actually achieved coarse beam pairing with the TRP. In order to save the time and complexity of beam training, the network side can also associate the SRS used for beam management with PRACH to tell the terminal within which coarse beam range to make fine beam adjustments, obtain the target beam for sending SRS, and send SRS through the target beam, thereby reducing the complexity and delay of beam management; thereafter, after receiving the SRS, the network side can determine the uplink beam based on the received SRS, and indicate it to the terminal, so that the terminal performs uplink transmission through the uplink beam indicated by the first network side device.

[0244] In a second aspect, an embodiment of the present application provides a transmission method, such as Figure 4 As shown, the transmission method may include the following steps:

[0245] Step 401: The first network side device configures the number of packets Y of transmission opportunities RO for sending preamble sequences.

[0246] Wherein, Y is an integer greater than zero, the ROs in the Y groups are associated with the same target signal, and the ROs in the same group are used to send the same preamble sequence.

[0247] It should be noted that the Y RO groups may include at least some of the ROs associated with the target signal. For example, multiple ROs may be randomly selected from the ROs associated with the target signal, and the selected multiple ROs may be divided into at least one group. Here, the Y RO groups may be divided according to the order of the ROs in the time domain. For example, each adjacent v1 ROs belongs to a group, and v1 is greater than zero. It is understandable that the division method of the Y RO groups is not limited to this.

[0248] Optionally, the value of Y can be one of 1, 2, and 4.

[0249] In addition, the target signal may be selected based on the channel quality (e.g., RSRP) of the target signal, for example, the target signal is the one with the best channel quality among multiple target signals received by the terminal, or the target signal is one of the multiple target signals received by the terminal, the channel quality of which is higher than the first threshold; it is understandable that the target signal may also be indicated by network signaling. Optionally, the target signal is one of SSB, CSI-RS, and SRS.

[0250] In addition, after the first network side configures the above Y for the terminal, the terminal determines Y RO groups associated with the same target signal, so as to send the same preamble sequence on the ROs in the same group.

[0251] From the above, it can be seen that in an embodiment of the present application, the terminal can send a preamble sequence on at least one group of ROs associated with the same target signal, and the preamble sequences sent on the ROs in the same group are the same. In this way, the same preamble sequence can be sent on multiple ROs, and at least one preamble sequence can be sent, which increases the probability of multiple TRPs receiving the preamble sequence, thereby laying the foundation for simultaneously achieving uplink synchronization of the terminal with multiple TRPs, and further improving the uplink synchronization efficiency in the multi-TRP scenario.

[0252] Optionally, the method further comprises:

[0253] The first network side device receives a leading sequence;

[0254] The first network side device sends scheduling information of a random access response according to the received preamble sequence, wherein the scheduling information is scrambled using the first information;

[0255] The first network side device sends the random access response;

[0256] The first information includes a random access radio network temporary identifier RA-CRNTI calculated according to the m3th RO of each group in the group to which the first target RO belongs, the first target RO includes the RO where the received preamble sequence is located, and m3 is an integer greater than zero.

[0257] It can be seen that after sending the preamble sequence (ie Msg1), the terminal can receive the scheduling information of the random access response (ie Msg2 or RAR) sent by the first network side device, and thus receive the random access response sent by the first network side device according to the scheduling information.

[0258] It should be noted that the above-mentioned scheduling information in the embodiment of the present application is scrambled by using the first information, and the first information includes the RA-CRNTI calculated from the m3th RO in the group to which the RO where the received preamble sequence belongs belongs.

[0259] For example, when Y=1, a preamble sequence sent by the terminal is received, and there is only one group in which the preamble sequence is located. In this way, the first information includes the RA-CRNTI calculated based on the m3th RO in the group. In this case, after receiving the above scheduling information, the terminal needs to use the RA-CRNTI calculated based on the m3th RO in the group for descrambling.

[0260] or,

[0261] For example, when Y is greater than 1, in the preamble sequence sent by the terminal, the received preamble sequence is in the first group and the second group respectively, then the first information includes: the RA-CRNTI calculated according to the m3th RO in the first group, and the RA-CRNTI calculated according to the m3th RO in the second group. In this case, after receiving the above scheduling information, the terminal needs to use the RA-CRNTI calculated according to the m3th RO in the first group and the RA-CRNTI calculated according to the m3th RO in the second group for descrambling.

[0262] Optionally, m3=1.

[0263] Optionally, before the first network side device sends scheduling information of a random access response according to the received preamble sequence, the method further includes:

[0264] The first network side device receives target information sent by the second network side device, wherein the target information is used to indicate the RO or RO group where the preamble sequence received by the second network side device is located.

[0265] Here, optionally, the second network side device only has a receiving capability (ie, does not have a sending capability to the terminal), and the first network side device has a sending and receiving capability.

[0266] The received preamble sequence may include a preamble sequence received by multiple network side devices, that is, it may include a preamble sequence received by a first network side device and a preamble sequence received by a second network side device. It should be noted that the network side devices can communicate with each other, so although the second network side device does not have the ability to send to the terminal, it can inform the first network side device of its reception of the preamble sequence, so that the first network side device can replace the sending of relevant information during the uplink synchronization process.

[0267] For example, in a multi-TRP scenario, some TRPs can be sent and received, but UL-only TRPs cannot be sent and can only be received; it can be seen that in a multi-TRP scenario, the leading sequence sent by the terminal on Y RO groups can be received not only by the TRP that can be sent and received, but also by the UL-only TRP. In this case, in an embodiment of the present application, the TRP that can be sent and received uses the m3th RO of each group in the group to which the RO to which the received leading sequence belongs to calculate the RA-CRNTI, and then scrambles the random access response according to the calculated RA-CRNTI, and then sends it to the terminal. In this way, even if the UL-only TRP cannot randomly access the response, the TRP that can be sent and received can replace the UL-only TRP to send relevant information during the uplink synchronization process. Here, the terminal can distinguish the random access response information corresponding to different TRPs sent by the transceiver TRP according to different RA-CRNTIs.

[0268] Optionally, the random access response carries at least one of the following D-1 to D-7:

[0269] Item D-1: the index of the first target RO;

[0270] Item D-2: the index of the group to which the first target RO belongs;

[0271] Item D-3: index of the leading sequence on the first target RO;

[0272] Item D-4: a first power offset value, the first power offset value comprising: a deviation of a path loss between at least one device among the devices receiving the preamble sequence on the first target RO and the terminal relative to a first reference value;

[0273] Item D-5: the index of the timing advance group TAG corresponding to the first target RO;

[0274] Item D-6: time advance command TAC corresponding to the first target RO;

[0275] Item D-7: TAC offset value corresponding to the first target RO.

[0276] Here, the relevant explanations of items D-1 to D-7 can be found in the previous text and will not be repeated here.

[0277] Optionally, the first reference value is determined according to the target signal or a second target RO;

[0278] Wherein, the second target RO satisfies at least one of the following E-1 to E-3:

[0279] Item E-1: when Y=1, the second target RO includes the m4th RO in the group, where m4 is an integer greater than zero;

[0280] Item E-2: when Y is greater than 1, the second target RO includes the RO in the m5th group;

[0281] Item E-3: The spatial relationship information corresponding to the second target RO is determined according to the target signal.

[0282] Here, the relevant explanations of items E-1 to E-3 can be found in the previous article and will not be repeated here.

[0283] Optionally, the ROs using the same beam correspond to the same second information, and the second information includes at least one of a TAG and a TAC. That is, the TAGs corresponding to the ROs using the same beam may be the same, and the TACs may also be the same.

[0284] Optionally, the method further comprises:

[0285] The first network side device receives a physical uplink shared channel PUSCH;

[0286] The spatial relationship of the physical uplink shared channel PUSCH is determined according to a third target RO, and the third target RO includes the kth RO among the ROs indicated in the random access response, where k is an integer greater than zero.

[0287] Optionally, k=1, that is, the terminal can determine the PUSCH according to the first RO indicated in the random access response, and thus send the PUSCH.

[0288] Optionally, the method further comprises:

[0289] The first network side device sends SRS resource set configuration information;

[0290] The first network side device receives the SRS sent by the terminal according to the SRS resource configuration information;

[0291] The spatial relationship information of the SRS resources in the SRS resource set and at least one item in the SRS resource set are associated with at least one item of the following J-1 to J-3:

[0292] Item J-1: RO index of the physical random access channel PRACH (used to indicate the beam on the RO);

[0293] Item J-2: preamble sequence index of PRACH transmission (used to indicate the beam on the RO where the preamble sequence is located);

[0294] Item J-3: RACH configuration index (used to indicate the beam on the RO associated with the RACH configuration).

[0295] Here, the relevant explanations of items J-1 to J-3 can be found in the previous article and will not be repeated here.

[0296] In an embodiment of the present application, after receiving the above-mentioned SRS resource set configuration information, the terminal performs beam training according to the SRS resource set configuration information, determines the target beam for sending the SRS, and determines the transmission power, and then sends the SRS through the target beam and the transmission power. Among them, after receiving the SRS, the network side determines the uplink beam according to the received SRS, thereby indicating the uplink beam to the terminal. Here, the network side can indicate the uplink beam in the uplink beam configuration information, that is, the method for the network side to indicate the uplink beam to the terminal can be described in the following F-1 item.

[0297] Optionally, the SRS resource set configuration information includes at least one of the following:

[0298] The purpose of the SRS resource set (e.g., beam management, fine beam management);

[0299] Spatial relationship information of SRS resources in the SRS resource set (i.e., beams corresponding to the SRS resources);

[0300] The power control parameter of the SRS resource set.

[0301] Optionally, the power control parameter of the SRS resource set includes at least one of the following H-1 to H-2:

[0302] H-1 item: path loss reference signal index;

[0303] Item H-2: a second power offset value, the second power offset value comprising: a path loss between at least one device among the devices receiving the leading sequence and the terminal, a deviation relative to a second reference value, the second reference value being determined based on the path loss reference signal.

[0304] Here, the relevant explanations of items H-1 to H-2 can be found in the previous article and will not be repeated here.

[0305] Optionally, the method further comprises:

[0306] The first network side device sends uplink beam configuration information;

[0307] The first network side device receives a target object sent by the terminal according to the uplink beam configuration information, wherein the target object includes at least one of a PUSCH, a physical uplink control channel PUCCH, and an SRS;

[0308] The uplink beam configuration information includes at least one of the following items F-1 to F-4:

[0309] Item F-1: Quasi co-location type D information, wherein the quasi co-location type D information is used to indicate an uplink beam;

[0310] Item F-2: a second power offset value, the second power offset value comprising: a deviation of a path loss between at least one device among the devices receiving the preamble sequence and the terminal relative to a second reference value, the second reference value being determined according to the path loss reference signal;

[0311] Item F-3: Timing advance information;

[0312] Item F-4: Path loss reference signal information.

[0313] In addition, the quasi-co-location D information may be the target beam for sending SRS determined by the terminal performing beam training according to the SRS resource set configuration information in the foregoing text, or it may be the beam with better quality indicated by D-1 to D-3 in the foregoing text.

[0314] In a third aspect, an embodiment of the present application provides a transmission method, such as Figure 5 As shown, the method comprises the following steps:

[0315] Step 501: The second network side device receives a preamble sequence;

[0316] Step 502: the second network side device sends target information to the first network side device, wherein the target information is used to indicate the transmission opportunity RO or RO group where the preamble sequence received by the second network side device is located.

[0317] Here, optionally, the second network side device only has a receiving capability (ie, does not have a sending capability to the terminal), and the first network side device has a sending and receiving capability.

[0318] The received preamble sequence may include a preamble sequence received by multiple network side devices, that is, it may include a preamble sequence received by a first network side device and a preamble sequence received by a second network side device. It should be noted that the network side devices can communicate with each other, so although the second network side device does not have the ability to send to the terminal, it can inform the first network side device of its reception of the preamble sequence, so that the first network side device can replace the sending of relevant information during the uplink synchronization process.

[0319] In summary, the specific implementation of the transmission method in the embodiment of the present application can be described in the following steps W1 to W13:

[0320] Step W1: The terminal determines Y RO groups associated with the same target signal;

[0321] Step W2: The terminal sends a preamble sequence on Y RO packets;

[0322] Wherein, when Y=1, the ROs in the RO group are divided into at least one subset, the transmission beams on the ROs in the same subset are the same, and the transmission beams on the ROs in different subsets are different;

[0323] When Y is greater than 1, the transmission beams corresponding to the same RO group are the same, and the transmission beams corresponding to different groups are different.

[0324] Step W3: The first network side device receives the preamble sequence; the first network side device has the ability to send and receive data to and from the terminal;

[0325] Step W4: the second network side device receives the preamble sequence; the second network side device only has the ability to receive the transmission of the terminal;

[0326] Step W5: the second network side device sends target information to the first network side device, where the target information is used to indicate the RO or RO group or RO grouping where the preamble sequence received by the second network side device is located;

[0327] Step W6: the first network side device sends scheduling information of a random access response to the terminal, wherein the scheduling information is scrambled by the first information, the first information includes the random access wireless network temporary identifier RA-CRNTI calculated according to the m3th RO of each group in the group to which the first target RO belongs, the first target RO includes the RO where the received preamble sequence (that is, the preamble sequence received by the first network side device and the second network side device) is located, and m3 is an integer greater than zero;

[0328] Step W7: The first network side device sends a random access response to the terminal;

[0329] Step W8: The terminal receives the scheduling information of the random access response, and receives the random access response according to the scheduling information;

[0330] The random access response carries at least one of the following:

[0331] An index of the first target RO;

[0332] an index of the group to which the first target RO belongs;

[0333] An index of a preamble sequence on the first target RO;

[0334] A first power offset value, wherein the first power offset value includes: a deviation of a path loss between at least one device among devices receiving the preamble sequence on the first target RO and the terminal relative to a first reference value;

[0335] An index of a timing advance group TAG corresponding to the first target RO;

[0336] A time advance command TAC corresponding to the first target RO;

[0337] The TAC offset value corresponding to the first target RO.

[0338] Step W9: The terminal sends a PUSCH according to the random access response;

[0339] The spatial relationship of the physical uplink shared channel PUSCH is determined according to a third target RO, and the third target RO includes the kth RO among the ROs indicated in the random access response, where k is an integer greater than zero;

[0340] Step W10: The first network side device sends SRS resource set configuration information to the terminal;

[0341] The spatial relationship information of the SRS resources in the SRS resource set and at least one item in the SRS resource set are associated with at least one of the following:

[0342] RO index of PRACH;

[0343] Preamble sequence index for PRACH transmission;

[0344] RACH configuration index.

[0345] Step W11: the terminal sends the SRS according to the received SRS resource set configuration information;

[0346] Step W12: The first network side device receives the SRS, and determines an uplink beam according to the received SRS;

[0347] Step W13: The first network side device sends the configuration information of the uplink beam to the terminal.

[0348] It should be noted that the specific implementation of each step in the above steps W1 to W13 can be found in the above description and will not be repeated here.

[0349] Fourthly, in the prior art, when a terminal sends an SRS, it can only send a beam through blind search, which increases the time delay for the SRS to be successfully received. Based on this problem, an embodiment of the present application provides a transmission method, such as Figure 6 As shown, the method may include the following steps:

[0350] Step 601: The terminal receives uplink monitoring reference signal SRS resource set configuration information;

[0351] Step 602: The terminal sends an SRS according to the SRS resource set configuration information;

[0352] The spatial relationship information of the SRS resources in the SRS resource set and at least one item in the SRS resource set are associated with at least one item of the following J-1 to J-3:

[0353] Item J-1: RO index of the physical random access channel PRACH (used to indicate the beam on the RO);

[0354] Item J-2: preamble sequence index of PRACH transmission (used to indicate the beam on the RO where the preamble sequence is located);

[0355] Item J-3: RACH configuration index (used to indicate the beam on the RO associated with the RACH configuration).

[0356] Among them, for item J-1, at least one item in the SRS resource set is associated with the index of the RO of the PRACH, that is, at least one item in the SRS resource set is associated with the beam on the RO of the PRACH, wherein the beam on the RO belongs to a coarse beam. Therefore, in an embodiment of the present application, at least one item in the SRS resource set is associated with the coarse beam.

[0357] For item J-2, at least one item in the SRS resource set is associated with the leading sequence index of PRACH transmission, that is, at least one item in the SRS resource set is associated with the beam on the RO where the leading sequence index of PRACH transmission is located, wherein the beam on the RO belongs to a coarse beam. Therefore, in an embodiment of the present application, at least one item in the SRS resource set is associated with the coarse beam.

[0358] For item J-3, at least one item in the SRS resource set is associated with the RACH configuration index, that is, at least one item in the SRS resource set is associated with the beam on the RO associated with the RACH configuration index, wherein the beam on the RO belongs to a coarse beam. Therefore, in an embodiment of the present application, at least one item in the SRS resource set is associated with the coarse beam.

[0359] It can be seen from this that in an embodiment of the present application, when the first network side device configures the SRS resource set configuration information for the terminal, it can also inform the coarse beam associated with the SRS resource. In this way, the terminal can know within which coarse beam range to make fine beam adjustments, thereby quickly obtaining the target beam for sending the SRS, shortening the time delay for the successful reception of the SRS.

[0360] Optionally, the RO indicated by the above items J-1 to J-3 may be a beam quality greater than a preset threshold, that is, the RO indicated by the above items J-1 to J-3 may be a beam quality with better quality. In this way, the terminal can use a beam with better beam quality to send SRS, thereby improving the probability of receiving SRS.

[0361] Optionally, the SRS resource set configuration information includes at least one of the following:

[0362] The purpose of the SRS resource set;

[0363] Spatial relationship information of SRS resources in the SRS resource set;

[0364] The power control parameter of the SRS resource set.

[0365] Optionally, the power control parameter of the SRS resource set includes at least one of the following H-1 to H-2:

[0366] H-1 item: path loss reference signal index;

[0367] Item H-2: a second power offset value, the second power offset value comprising: a path loss between at least one device among the devices receiving the leading sequence and the terminal, a deviation relative to a second reference value, the second reference value being determined based on the path loss reference signal.

[0368] Here, the relevant explanations about items H-1 to H-2 can be found in the previous article and will not be repeated here.

[0369] Optionally, the method further comprises:

[0370] The terminal receives uplink beam configuration information;

[0371] The terminal determines, according to the uplink beam configuration information, a transmit beam and a transmit power of a target object, wherein the target object includes at least one of a PUSCH, a physical uplink control channel PUCCH, and an SRS;

[0372] The terminal uses the transmission power and transmits the target object through the transmission beam;

[0373] The uplink beam configuration information includes at least one of the following items F-1 to F-4:

[0374] Item F-1: Quasi co-location type D information, wherein the quasi co-location type D information is used to indicate an uplink beam;

[0375] Item F-2: a second power offset value, the second power offset value comprising: a deviation of a path loss between at least one device among the devices receiving the preamble sequence and the terminal relative to a second reference value, the second reference value being determined according to a path loss reference signal;

[0376] Item F-3: Timing advance information;

[0377] Item F-4: Path loss reference signal information.

[0378] Here, the relevant explanations about items F-1 to F-4 can be found in the previous text and will not be repeated here.

[0379] In a fifth aspect, an embodiment of the present application provides a transmission method, such as Figure 7 As shown, the method may include the following steps:

[0380] Step 701: A first network side device sends uplink monitoring reference signal SRS resource set configuration information;

[0381] Step 702: The first network side device receives the SRS sent by the terminal according to the SRS resource configuration information;

[0382] The spatial relationship information of the SRS resources in the SRS resource set and at least one item in the SRS resource set are associated with at least one item of the following J-1 to J-3:

[0383] Item J-1: RO index of the physical random access channel PRACH (used to indicate the beam on the RO);

[0384] Item J-2: preamble sequence index of PRACH transmission (used to indicate the beam on the RO where the preamble sequence is located);

[0385] Item J-3: RACH configuration index (used to indicate the beam on the RO associated with the RACH configuration).

[0386] Among them, for item J-1, at least one item in the SRS resource set is associated with the index of the RO of the PRACH, that is, at least one item in the SRS resource set is associated with the beam on the RO of the PRACH, wherein the beam on the RO belongs to a coarse beam. Therefore, in an embodiment of the present application, at least one item in the SRS resource set is associated with the coarse beam.

[0387] For item J-2, at least one item in the SRS resource set is associated with the leading sequence index of PRACH transmission, that is, at least one item in the SRS resource set is associated with the beam on the RO where the leading sequence index of PRACH transmission is located, wherein the beam on the RO belongs to a coarse beam. Therefore, in an embodiment of the present application, at least one item in the SRS resource set is associated with the coarse beam.

[0388] For item J-3, at least one item in the SRS resource set is associated with the RACH configuration index, that is, at least one item in the SRS resource set is associated with the beam on the RO associated with the RACH configuration index, wherein the beam on the RO belongs to a coarse beam. Therefore, in an embodiment of the present application, at least one item in the SRS resource set is associated with the coarse beam.

[0389] It can be seen from this that in an embodiment of the present application, when the first network side device configures the SRS resource set configuration information for the terminal, it can also inform the coarse beam associated with the SRS resource. In this way, the terminal can know within which coarse beam range to make fine beam adjustments, thereby quickly obtaining the target beam for sending the SRS, shortening the time delay for the successful reception of the SRS.

[0390] Optionally, the RO indicated by the above items J-1 to J-3 may be a beam quality greater than a preset threshold, that is, the RO indicated by the above items J-1 to J-3 may be a beam quality with better quality. In this way, the terminal can use a beam with better beam quality to send SRS, thereby improving the probability of receiving SRS.

[0391] Optionally, the SRS resource set configuration information includes at least one of the following:

[0392] The purpose of the SRS resource set;

[0393] Spatial relationship information of SRS resources in the SRS resource set;

[0394] The power control parameter of the SRS resource set.

[0395] Optionally, the power control parameter of the SRS resource set includes at least one of the following H-1 to H-2:

[0396] H-1 item: path loss reference signal index;

[0397] Item H-2: a second power offset value, the second power offset value comprising: a path loss between at least one device among the devices receiving the leading sequence and the terminal, a deviation relative to a second reference value, the second reference value being determined based on the path loss reference signal.

[0398] Here, the relevant explanations about items H-1 to H-2 can be found in the previous article and will not be repeated here.

[0399] Optionally, the method further comprises:

[0400] The first network side device sends uplink beam configuration information;

[0401] The first network side device receives a target object sent by the terminal according to the uplink beam configuration information, wherein the target object includes at least one of a PUSCH, a physical uplink control channel PUCCH, and an SRS;

[0402] The uplink beam configuration information includes at least one of the following items F-1 to F-4:

[0403] Item F-1: Quasi co-location type D information, wherein the quasi co-location type D information is used to indicate an uplink beam;

[0404] Item F-2: a second power offset value, the second power offset value comprising: a deviation of a path loss between at least one device among the devices receiving the preamble sequence and the terminal relative to a second reference value, the second reference value being determined according to a path loss reference signal;

[0405] Item F-3: Timing advance information;

[0406] Item F-4: Path loss reference signal information.

[0407] Here, the relevant explanations about items F-1 to F-4 can be found in the previous text and will not be repeated here.

[0408] The transmission method provided in the embodiment of the present application can be executed by a transmission device. In the embodiment of the present application, the transmission device provided in the embodiment of the present application is described by taking the transmission method executed by the transmission device as an example.

[0409] In a sixth aspect, an embodiment of the present application provides a transmission device, such as Figure 8 As shown, the transmission device 80 includes the following modules:

[0410] A first determination module 801 is configured to determine Y random access channel opportunity RO groups associated with the same target signal, where Y is an integer greater than zero;

[0411] The first sending module 802 is configured to send a preamble sequence on Y RO groups, wherein the preamble sequence sent by each group of ROs is the same.

[0412] Optionally, the first sending module 802 is specifically configured to:

[0413] In the case of Y=1, the preamble sequences are respectively transmitted on the ROs in the multiple subsets of the RO group, wherein the transmission beams on the ROs in the same subset are the same, and the transmission beams on the ROs in different subsets are different;

[0414] When Y is greater than 1, different transmission beams are used to transmit the preamble sequences on Y RO groups respectively, wherein the transmission beams corresponding to the same RO group are the same, and the transmission beams corresponding to different groups are different.

[0415] Optionally, the first sending module 802 is specifically configured to:

[0416] Sending a preamble on Y RO packets based on at least one of the following:

[0417] A first signaling for configuring a random access channel RACH;

[0418] First indication information, where the first indication information is used to indicate a sending mode of a preamble sequence or a value of Y;

[0419] The second indication information is used to indicate at least one of a plurality of beams corresponding to different subsets of the same RO group, a plurality of beams corresponding to different RO groups, a first association relationship between Y RO groups and a plurality of beams, and a second association relationship between different subsets of the same RO group and a plurality of beams.

[0420] Optionally, a physical downlink control channel PDCCH signaling for triggering a random access channel RACH includes at least one of the first indication information and the second indication information;

[0421] or,

[0422] The uplink monitoring reference signal SRS resource indication field in the PDCCH signaling that triggers the RACH includes at least one of the first indication information and the second indication information.

[0423] Optionally, radio resource control signaling indicates whether at least one of the first indication information and the second indication information exists.

[0424] Optionally, when Y=1, the spatial relationship of the m1th RO of the n1th subset or the RO of the n1th subset is determined according to the target signal, wherein the ROs in the group are divided into multiple subsets, and n1 and m1 are both integers greater than zero;

[0425] When Y is greater than 1, the spatial relationship of the m2th RO of the n2th group or the ROs in the n2th group is determined according to the target signal, wherein n2 and m2 are both integers greater than zero.

[0426] Optionally, the device further comprises:

[0427] a fourth receiving module, configured to receive scheduling information of a random access response, wherein the scheduling information is scrambled using the first information;

[0428] a fifth sending module, configured to receive the random access response according to the scheduling information;

[0429] The first information includes a random access radio network temporary identifier RA-CRNTI calculated according to the m3th RO of each group in the group to which the first target RO belongs, the first target RO includes the RO where the received preamble sequence is located, and m3 is an integer greater than zero.

[0430] Optionally, the random access response carries at least one of the following:

[0431] An index of the first target RO;

[0432] an index of the group to which the first target RO belongs;

[0433] An index of a preamble sequence on the first target RO;

[0434] A first power offset value, wherein the first power offset value includes: a deviation of a path loss between at least one device among devices receiving the preamble sequence on the first target RO and the terminal relative to a first reference value;

[0435] An index of a timing advance group TAG corresponding to the first target RO;

[0436] A time advance command TAC corresponding to the first target RO;

[0437] The TAC offset value corresponding to the first target RO.

[0438] Optionally, the first reference value is determined according to the target signal or a second target RO;

[0439] Wherein, the second target RO satisfies at least one of the following:

[0440] In the case of Y=1, the second target RO includes the m4th RO in the group, where m4 is an integer greater than zero;

[0441] When Y is greater than 1, the second target RO includes the RO in the m5th group;

[0442] The spatial relationship information corresponding to the second target RO is determined according to the target signal.

[0443] Optionally, ROs using the same beam correspond to the same second information, and the second information includes at least one of TAG and TAC.

[0444] Optionally, the device further comprises:

[0445] A sixth sending module, configured to send a physical uplink shared channel PUSCH according to the random access response;

[0446] The spatial relationship of the physical uplink shared channel PUSCH is determined according to a third target RO, and the third target RO includes the kth RO among the ROs indicated in the random access response, where k is an integer greater than zero.

[0447] Optionally, the device further comprises:

[0448] A second receiving module, configured to receive SRS resource set configuration information;

[0449] A third sending module, configured to send the SRS according to the SRS resource set configuration information;

[0450] The spatial relationship information of the SRS resources in the SRS resource set and at least one item in the SRS resource set are associated with at least one of the following:

[0451] RO index of the physical random access channel PRACH;

[0452] Preamble sequence index for PRACH transmission;

[0453] RACH configuration index.

[0454] Optionally, the SRS resource set configuration information includes at least one of the following:

[0455] The purpose of the SRS resource set;

[0456] Spatial relationship information of SRS resources in the SRS resource set;

[0457] The power control parameter of the SRS resource set.

[0458] Optionally, the power control parameter of the SRS resource set includes at least one of the following:

[0459] Path loss reference signal index;

[0460] A second power offset value, wherein the second power offset value includes: a deviation of a path loss between at least one device among the devices receiving the preamble sequence and the terminal relative to a second reference value, wherein the second reference value is determined according to the path loss reference signal.

[0461] Optionally, the device further comprises:

[0462] A fifth receiving module, used to receive uplink beam configuration information;

[0463] A second determination module is used to determine a transmit beam and a transmit power of a target object according to the uplink beam configuration information, wherein the target object includes at least one of a PUSCH, a physical uplink control channel PUCCH, and an SRS;

[0464] a seventh transmitting module, configured to use the transmitting power and transmit the target object through the transmitting beam;

[0465] The uplink beam configuration information includes at least one of the following:

[0466] Quasi co-location type D information, wherein the quasi co-location type D information is used to indicate an uplink beam;

[0467] a second power offset value, the second power offset value comprising: a deviation of a path loss between at least one device among the devices receiving the preamble sequence and the terminal relative to a second reference value, the second reference value being determined according to a path loss reference signal;

[0468] Timing advance information;

[0469] Path loss reference signal information.

[0470] The transmission device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal. Exemplarily, the terminal may include but is not limited to the types of the terminal 11 listed above, and the embodiment of the present application does not specifically limit this.

[0471] The transmission device provided in the embodiment of the present application can achieve Figure 3 The various processes implemented by the method embodiment and achieving the same technical effect are not described here to avoid repetition.

[0472] In a seventh aspect, an embodiment of the present application provides a transmission device, which is applied to a first network side device, such as Fig. 9 As shown, the transmission device 90 includes the following modules:

[0473] A configuration module 901 is used to configure the number of packets Y of transmission opportunities RO for sending preamble sequences;

[0474] Wherein, Y is an integer greater than zero, the ROs in the Y groups are associated with the same target signal, and the ROs in the same group are used to send the same preamble sequence.

[0475] Optionally, the device further comprises:

[0476] A sixth receiving module, configured to receive a leading sequence;

[0477] an eighth sending module, configured to send scheduling information of a random access response according to the received preamble sequence, wherein the scheduling information is scrambled using the first information;

[0478] A ninth sending module, configured to send the random access response;

[0479] The first information includes a random access radio network temporary identifier RA-CRNTI calculated according to the m3th RO of each group in the group to which the first target RO belongs, the first target RO includes the RO where the received preamble sequence is located, and m3 is an integer greater than zero.

[0480] Optionally, the device further comprises:

[0481] The seventh receiving module is used to receive target information sent by the second network side device, wherein the target information is used to indicate the RO or RO group where the leading sequence received by the second network side device is located.

[0482] Optionally, the random access response carries at least one of the following:

[0483] An index of the first target RO;

[0484] an index of the group to which the first target RO belongs;

[0485] An index of a preamble sequence on the first target RO;

[0486] A first power offset value, wherein the first power offset value includes: a deviation of a path loss between at least one device among the devices receiving the preamble sequence on the first target RO and the terminal relative to a first reference value;

[0487] An index of a timing advance group TAG corresponding to the first target RO;

[0488] A time advance command TAC corresponding to the first target RO;

[0489] The TAC offset value corresponding to the first target RO.

[0490] Optionally, the first reference value is determined according to the target signal or a second target RO;

[0491] Wherein, the second target RO satisfies at least one of the following:

[0492] In the case of Y=1, the second target RO includes the m4th RO in the group, where m4 is an integer greater than zero;

[0493] When Y is greater than 1, the second target RO includes the RO in the m5th group;

[0494] The spatial relationship information corresponding to the second target RO is determined according to the target signal.

[0495] Optionally, ROs using the same beam correspond to the same second information, and the second information includes at least one of TAG and TAC.

[0496] Optionally, the device further comprises:

[0497] A seventh receiving module, configured to receive a physical uplink shared channel PUSCH;

[0498] The spatial relationship of the physical uplink shared channel PUSCH is determined according to a third target RO, and the third target RO includes the kth RO among the ROs indicated in the random access response, where k is an integer greater than zero.

[0499] Optionally, the device further comprises:

[0500] A fourth sending module, configured to send uplink monitoring reference signal SRS resource set configuration information;

[0501] A third receiving module, configured to receive an SRS sent by a terminal according to the SRS resource configuration information;

[0502] The spatial relationship information of the SRS resources in the SRS resource set and at least one item in the SRS resource set are associated with at least one of the following:

[0503] RO index of the physical random access channel PRACH;

[0504] Preamble sequence index for PRACH transmission;

[0505] RACH configuration index.

[0506] Optionally, the SRS resource set configuration information includes at least one of the following:

[0507] The purpose of the SRS resource set;

[0508] Spatial relationship information of SRS resources in the SRS resource set;

[0509] The power control parameter of the SRS resource set.

[0510] Optionally, the power control parameter of the SRS resource set includes at least one of the following:

[0511] Path loss reference signal index;

[0512] A second power offset value, wherein the second power offset value includes: a deviation of a path loss between at least one device among the devices receiving the preamble sequence and the terminal relative to a second reference value, wherein the second reference value is determined according to the path loss reference signal.

[0513] Optionally, the device further comprises:

[0514] a tenth sending module, used to send uplink beam configuration information;

[0515] an eighth sending module, configured to receive a target object sent by a terminal according to the uplink beam configuration information, wherein the target object includes at least one of a PUSCH, a physical uplink control channel PUCCH, and an SRS;

[0516] The uplink beam configuration information includes at least one of the following:

[0517] Quasi co-location type D information, wherein the quasi co-location type D information is used to indicate an uplink beam;

[0518] a second power offset value, the second power offset value comprising: a deviation of a path loss between at least one device among the devices receiving the preamble sequence and the terminal relative to a second reference value, the second reference value being determined according to a path loss reference signal;

[0519] Timing advance information;

[0520] Path loss reference signal information.

[0521] The transmission device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device may be a network side device. Exemplarily, the network side device may include but is not limited to the types of network side devices 12 listed above, and the embodiment of the present application does not specifically limit this.

[0522] The transmission device provided in the embodiment of the present application can achieve Figure 4 The various processes implemented by the method embodiment and achieving the same technical effect are not described here to avoid repetition.

[0523] In an eighth aspect, a transmission device is provided, which is applied to a second network side device, such as Fig.10 As shown, the transmission device 100 includes the following modules:

[0524] A first receiving module 1001, configured to receive a preamble sequence;

[0525] The second sending module 1002 is used to send target information to the first network side device, wherein the target information is used to indicate the transmission opportunity RO or RO group where the preamble sequence received by the second network side device is located.

[0526] The transmission device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device may be a network side device. Exemplarily, the network side device may include but is not limited to the types of network side devices 12 listed above, and the embodiment of the present application does not specifically limit this.

[0527] The transmission device provided in the embodiment of the present application can achieve Figure 5 The various processes implemented by the method embodiment and achieving the same technical effect are not described here to avoid repetition.

[0528] In a ninth aspect, a transmission device is provided, which is applied to a terminal, such as Fig.11 As shown, the transmission device 110 includes the following modules:

[0529] The second receiving module 1101 is configured to receive uplink monitoring reference signal SRS resource set configuration information;

[0530] A third sending module 1102 is configured to send an SRS according to the SRS resource set configuration information;

[0531] The spatial relationship information of the SRS resources in the SRS resource set and at least one item in the SRS resource set are associated with at least one of the following:

[0532] RO index of the physical random access channel PRACH;

[0533] Preamble sequence index for PRACH transmission;

[0534] RACH configuration index.

[0535] Optionally, the SRS resource set configuration information includes at least one of the following:

[0536] The purpose of the SRS resource set;

[0537] Spatial relationship information of SRS resources in the SRS resource set;

[0538] The power control parameter of the SRS resource set.

[0539] Optionally, the power control parameter of the SRS resource set includes at least one of the following:

[0540] Path loss reference signal index;

[0541] A second power offset value, wherein the second power offset value includes: a deviation of a path loss between at least one device among the devices receiving the preamble sequence and the terminal relative to a second reference value, wherein the second reference value is determined according to the path loss reference signal.

[0542] Optionally, the device further comprises:

[0543] A fifth receiving module, used to receive uplink beam configuration information;

[0544] A second determination module is used to determine a transmit beam and a transmit power of a target object according to the uplink beam configuration information, wherein the target object includes at least one of a PUSCH, a physical uplink control channel PUCCH, and an SRS;

[0545] a seventh transmitting module, configured to use the transmitting power and transmit the target object through the transmitting beam;

[0546] The uplink beam configuration information includes at least one of the following:

[0547] Quasi co-location type D information, wherein the quasi co-location type D information is used to indicate an uplink beam;

[0548] a second power offset value, the second power offset value comprising: a deviation of a path loss between at least one device among the devices receiving the preamble sequence and the terminal relative to a second reference value, the second reference value being determined according to a path loss reference signal;

[0549] Timing advance information;

[0550] Path loss reference signal information.

[0551] The transmission device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal. Exemplarily, the terminal may include but is not limited to the types of the terminal 11 listed above, and the embodiment of the present application does not specifically limit this.

[0552] The transmission device provided in the embodiment of the present application can achieve Figure 6 The various processes implemented by the method embodiment and achieving the same technical effect are not described here to avoid repetition.

[0553] In a tenth aspect, a transmission device is provided, which is applied to a first network side device, such as Fig.12 As shown, the transmission device 120 includes the following modules:

[0554] The fourth sending module 1201 is configured to send uplink monitoring reference signal SRS resource set configuration information;

[0555] A third receiving module 1202 is configured to receive an SRS sent by a terminal according to the SRS resource configuration information;

[0556] The spatial relationship information of the SRS resources in the SRS resource set and at least one item in the SRS resource set are associated with at least one of the following:

[0557] RO index of the physical random access channel PRACH;

[0558] Preamble sequence index for PRACH transmission;

[0559] RACH configuration index.

[0560] Optionally, the SRS resource set configuration information includes at least one of the following:

[0561] The purpose of the SRS resource set;

[0562] Spatial relationship information of SRS resources in the SRS resource set;

[0563] The power control parameter of the SRS resource set.

[0564] Optionally, the power control parameter of the SRS resource set includes at least one of the following:

[0565] Path loss reference signal index;

[0566] A second power offset value, wherein the second power offset value includes: a deviation of a path loss between at least one device among the devices receiving the preamble sequence and the terminal relative to a second reference value, wherein the second reference value is determined according to the path loss reference signal.

[0567] Optionally, the device further comprises:

[0568] a tenth sending module, used to send uplink beam configuration information;

[0569] an eighth receiving module, configured to receive a target object sent by a terminal according to the uplink beam configuration information, wherein the target object includes at least one of a PUSCH, a physical uplink control channel PUCCH, and an SRS;

[0570] The uplink beam configuration information includes at least one of the following:

[0571] Quasi co-location type D information, wherein the quasi co-location type D information is used to indicate an uplink beam;

[0572] a second power offset value, the second power offset value comprising: a deviation of a path loss between at least one device among the devices receiving the preamble sequence and the terminal relative to a second reference value, the second reference value being determined according to a path loss reference signal;

[0573] Timing advance information;

[0574] Path loss reference signal information.

[0575] The transmission device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device may be a network side device. Exemplarily, the network side device may include but is not limited to the types of network side devices 12 listed above, and the embodiment of the present application does not specifically limit this.

[0576] The transmission device provided in the embodiment of the present application can achieve Figure 7 The various processes implemented by the method embodiment and achieving the same technical effect are not described here to avoid repetition.

[0577] like Fig.13 As shown, the embodiment of the present application further provides a communication device 1300, including a processor 1301 and a memory 1302, and the memory 1302 stores a program or instruction that can be run on the processor 1301. For example, when the communication device 1300 is a terminal, the program or instruction is executed by the processor 1301 to implement the various steps of the transmission method embodiment described in the first aspect or the fourth aspect, and can achieve the same technical effect. When the communication device 1300 is a network side device, the program or instruction is executed by the processor 1301 to implement the various steps of the transmission method embodiment described in the second aspect, the third aspect, or the fifth aspect, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0578] The embodiment of the present application also provides a terminal, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the following Figure 3 Or the steps in the method embodiment shown in 6. This terminal embodiment corresponds to the above-mentioned terminal side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this terminal embodiment and can achieve the same technical effect. Specifically, Fig.14 A schematic diagram of the hardware structure of a terminal for implementing an embodiment of the present application.

[0579] The terminal 1400 includes but is not limited to: a radio frequency unit 1401, a network module 1402, an audio output unit 1403, an input unit 1404, a sensor 1405, a display unit 1406, a user input unit 1407, an interface unit 1408, a memory 1409 and at least some of the components of the processor 1410.

[0580] Those skilled in the art will appreciate that the terminal 1400 may also include a power source (such as a battery) for supplying power to each component, and the power source may be logically connected to the processor 1410 through a power management system, thereby implementing functions such as managing charging, discharging, and power consumption management through the power management system. Fig.14 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.

[0581] It should be understood that in the embodiment of the present application, the input unit 1404 may include a graphics processing unit (GPU) 14041 and a microphone 14042, and the graphics processor 14041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 1406 may include a display panel 14061, and the display panel 14061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 1407 includes a touch panel 14071 and at least one of other input devices 14072. The touch panel 14071 is also called a touch screen. The touch panel 14071 may include two parts: a touch detection device and a touch controller. Other input devices 14072 may include, but are not limited to, a physical keyboard, function keys (such as a volume control button, a switch button, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0582] In the embodiment of the present application, after receiving downlink data from the network side device, the radio frequency unit 1401 can transmit the data to the processor 1410 for processing; in addition, the radio frequency unit 1401 can send uplink data to the network side device. Generally, the radio frequency unit 1401 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0583] The memory 1409 can be used to store software programs or instructions and various data. The memory 1409 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may 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 1409 may include a volatile memory or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM) and a direct memory bus random access memory (DRRAM). The memory 1409 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0584] The processor 1410 may include one or more processing units; optionally, the processor 1410 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 1410.

[0585] In a first aspect, the processor 1410 is configured to determine Y random access channel opportunity RO groups associated with the same target signal, where Y is an integer greater than zero;

[0586] The radio frequency unit 1401 is configured to send preamble sequences on Y RO groups, wherein the preamble sequences sent by each group of ROs are the same.

[0587] Optionally, the radio frequency unit 1401 sends a preamble sequence on Y RO packets, including:

[0588] In the case of Y=1, the preamble sequences are respectively transmitted on the ROs in the multiple subsets of the RO group, wherein the transmission beams on the ROs in the same subset are the same, and the transmission beams on the ROs in different subsets are different;

[0589] When Y is greater than 1, different transmission beams are used to transmit the preamble sequences on Y RO groups respectively, wherein the transmission beams corresponding to the same RO group are the same, and the transmission beams corresponding to different groups are different.

[0590] Optionally, the radio frequency unit 1401 sends a preamble sequence on Y RO packets, including:

[0591] Sending a preamble on Y RO packets based on at least one of the following:

[0592] A first signaling for configuring a random access channel RACH;

[0593] First indication information, where the first indication information is used to indicate a sending mode of a preamble sequence or a value of Y;

[0594] The second indication information is used to indicate at least one of a plurality of beams corresponding to different subsets of the same RO group, a plurality of beams corresponding to different RO groups, a first association relationship between Y RO groups and a plurality of beams, and a second association relationship between different subsets of the same RO group and a plurality of beams.

[0595] Optionally, a physical downlink control channel PDCCH signaling for triggering a random access channel RACH includes at least one of the first indication information and the second indication information;

[0596] or,

[0597] The uplink monitoring reference signal SRS resource indication field in the PDCCH signaling that triggers the RACH includes at least one of the first indication information and the second indication information.

[0598] Optionally, radio resource control signaling indicates whether at least one of the first indication information and the second indication information exists.

[0599] Optionally, when Y=1, the spatial relationship of the m1th RO of the n1th subset or the RO of the n1th subset is determined according to the target signal, wherein the ROs in the group are divided into multiple subsets, and n1 and m1 are both integers greater than zero;

[0600] When Y is greater than 1, the spatial relationship of the m2th RO of the n2th group or the ROs in the n2th group is determined according to the target signal, wherein n2 and m2 are both integers greater than zero.

[0601] Optionally, the radio frequency unit 1401 is further configured to:

[0602] Receiving scheduling information of a random access response, wherein the scheduling information is scrambled using first information;

[0603] receiving the random access response according to the scheduling information;

[0604] The first information includes a random access radio network temporary identifier RA-CRNTI calculated according to the m3th RO of each group in the group to which the first target RO belongs, the first target RO includes the RO where the received preamble sequence is located, and m3 is an integer greater than zero.

[0605] Optionally, the random access response carries at least one of the following:

[0606] An index of the first target RO;

[0607] an index of the group to which the first target RO belongs;

[0608] An index of a preamble sequence on the first target RO;

[0609] A first power offset value, wherein the first power offset value includes: a deviation of a path loss between at least one device among devices receiving the preamble sequence on the first target RO and the terminal relative to a first reference value;

[0610] An index of a timing advance group TAG corresponding to the first target RO;

[0611] A time advance command TAC corresponding to the first target RO;

[0612] The TAC offset value corresponding to the first target RO.

[0613] Optionally, the first reference value is determined according to the target signal or a second target RO;

[0614] Wherein, the second target RO satisfies at least one of the following:

[0615] In the case of Y=1, the second target RO includes the m4th RO in the group, where m4 is an integer greater than zero;

[0616] When Y is greater than 1, the second target RO includes the RO in the m5th group;

[0617] The spatial relationship information corresponding to the second target RO is determined according to the target signal.

[0618] Optionally, ROs using the same beam correspond to the same second information, and the second information includes at least one of TAG and TAC.

[0619] Optionally, the radio frequency unit 1401 is further configured to:

[0620] Sending a physical uplink shared channel PUSCH according to the random access response;

[0621] The spatial relationship of the physical uplink shared channel PUSCH is determined according to a third target RO, and the third target RO includes the kth RO among the ROs indicated in the random access response, where k is an integer greater than zero.

[0622] Optionally, the radio frequency unit 1401 is further configured to:

[0623] Receive SRS resource set configuration information;

[0624] Sending SRS according to the SRS resource set configuration information;

[0625] The spatial relationship information of the SRS resources in the SRS resource set and at least one item in the SRS resource set are associated with at least one of the following:

[0626] RO index of the physical random access channel PRACH;

[0627] Preamble sequence index for PRACH transmission;

[0628] RACH configuration index.

[0629] Optionally, the SRS resource set configuration information includes at least one of the following:

[0630] The purpose of the SRS resource set;

[0631] Spatial relationship information of SRS resources in the SRS resource set;

[0632] The power control parameter of the SRS resource set.

[0633] Optionally, the power control parameter of the SRS resource set includes at least one of the following:

[0634] Path loss reference signal index;

[0635] A second power offset value, wherein the second power offset value includes: a deviation of a path loss between at least one device among the devices receiving the preamble sequence and the terminal relative to a second reference value, wherein the second reference value is determined according to the path loss reference signal.

[0636] Optionally, the radio frequency unit 1401 is further used to: receive uplink beam configuration information;

[0637] The processor 1410 is further configured to: determine a transmit beam and a transmit power of a target object according to the uplink beam configuration information, wherein the target object includes at least one of a PUSCH, a physical uplink control channel PUCCH, and an SRS;

[0638] The radio frequency unit 1401 is further configured to use the transmit power and transmit the target object through the transmit beam;

[0639] The uplink beam configuration information includes at least one of the following:

[0640] Quasi co-location type D information, wherein the quasi co-location type D information is used to indicate an uplink beam;

[0641] a second power offset value, the second power offset value comprising: a deviation of a path loss between at least one device among the devices receiving the preamble sequence and the terminal relative to a second reference value, the second reference value being determined according to a path loss reference signal;

[0642] Timing advance information;

[0643] Path loss reference signal information.

[0644] In a second aspect, the radio frequency unit 1401 is used for:

[0645] Receive SRS resource set configuration information;

[0646] Sending SRS according to the SRS resource set configuration information;

[0647] The spatial relationship information of the SRS resources in the SRS resource set and at least one item in the SRS resource set are associated with at least one of the following:

[0648] RO index of the physical random access channel PRACH;

[0649] Preamble sequence index for PRACH transmission;

[0650] RACH configuration index.

[0651] Optionally, the SRS resource set configuration information includes at least one of the following:

[0652] The purpose of the SRS resource set;

[0653] Spatial relationship information of SRS resources in the SRS resource set;

[0654] The power control parameter of the SRS resource set.

[0655] Optionally, the power control parameter of the SRS resource set includes at least one of the following:

[0656] Path loss reference signal index;

[0657] A second power offset value, wherein the second power offset value includes: a deviation of a path loss between at least one device among the devices receiving the preamble sequence and the terminal relative to a second reference value, wherein the second reference value is determined according to the path loss reference signal.

[0658] Optionally, the radio frequency unit 1401 is further used to: receive uplink beam configuration information;

[0659] The processor 1410 is further configured to: determine a transmit beam and a transmit power of a target object according to the uplink beam configuration information, wherein the target object includes at least one of a PUSCH, a physical uplink control channel PUCCH, and an SRS;

[0660] The radio frequency unit 1401 is further configured to use the transmit power and transmit the target object through the transmit beam;

[0661] The uplink beam configuration information includes at least one of the following:

[0662] Quasi co-location type D information, wherein the quasi co-location type D information is used to indicate an uplink beam;

[0663] a second power offset value, the second power offset value comprising: a deviation of a path loss between at least one device among the devices receiving the preamble sequence and the terminal relative to a second reference value, the second reference value being determined according to a path loss reference signal;

[0664] Timing advance information;

[0665] Path loss reference signal information.

[0666] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the method embodiment and achieve the same or corresponding technical effect. To avoid repetition, it will not be repeated here.

[0667] The embodiment of the present application also provides a network side device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the following Figure 4 or Figure 5 or Figure 7 The steps of the method embodiment shown. This network side device embodiment corresponds to the above network side device method embodiment, and each implementation process and implementation mode of the above method embodiment can be applied to this network side device embodiment and can achieve the same technical effect.

[0668] Specifically, the embodiment of the present application also provides a network side device. Fig.15 As shown, the network side device 1500 includes: an antenna 151, a radio frequency device 152, a baseband device 153, a processor 154 and a memory 155. The antenna 151 is connected to the radio frequency device 152. In the uplink direction, the radio frequency device 152 receives information through the antenna 151 and sends the received information to the baseband device 153 for processing. In the downlink direction, the baseband device 153 processes the information to be sent and sends it to the radio frequency device 152. The radio frequency device 152 processes the received information and sends it out through the antenna 151.

[0669] The method executed by the network-side device in the above embodiment may be implemented in the baseband device 153, which includes a baseband processor.

[0670] The baseband device 153 may include, for example, at least one baseband board on which a plurality of chips are arranged. Fig.15 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 155 through a bus interface to call the program in the memory 155 to execute the network device operations shown in the above method embodiment.

[0671] The network side device may further include a network interface 156, which is, for example, a Common Public Radio Interface (CPRI).

[0672] Specifically, the network side device 1500 of the embodiment of the present invention further includes: instructions or programs stored in the memory 155 and executable on the processor 154, and the processor 154 calls the instructions or programs in the memory 155 to execute. Figure 6 The methods executed by the modules shown achieve the same technical effects, and therefore will not be described here in detail to avoid repetition.

[0673] 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, each process of the transmission method embodiment described in the first aspect, the second aspect, the third aspect, the fourth aspect, or the fifth aspect is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0674] The processor is the processor in the terminal 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. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0675] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the transmission method embodiments described in the first aspect, the second aspect, the third aspect, the fourth aspect, or the fifth aspect above, and can achieve the same technical effect. To avoid repetition, they are not repeated here.

[0676] 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.

[0677] An embodiment of the present application further provides a computer program / program product, which is stored in a storage medium, and is executed by at least one processor to implement the various processes of the transmission method embodiment described in the first aspect, the second aspect, the third aspect, the fourth aspect, or the fifth aspect above, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0678] An embodiment of the present application also provides a transmission system, including: a terminal, a first network side device, and a second network side device, wherein the terminal can be used to execute the steps of the transmission method described in the first aspect or the fourth aspect above, and the network side device can be used to execute the steps of the transmission method described in the second aspect, the third aspect, or the fifth aspect above.

[0679] 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 a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does 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 method and device in the embodiment 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.

[0680] 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 a computer software product plus a necessary general hardware platform, and of course, can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, disk, CD, etc.), including several instructions to enable a terminal or a network-side device to execute the methods described in each embodiment of the present application.

[0681] 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 of implementation methods without departing from the purpose of the present application and the scope of protection of the claims, and these implementation methods are all within the protection of the present application.

Claims

1. A transmission method, characterized in that: The method comprises: The terminal determines Y random access channel opportunity RO groups associated with the same target signal, where Y is an integer greater than zero; The terminal sends a preamble sequence on Y RO groups, wherein the preamble sequence sent by each group of ROs is the same.

2. The method according to claim 1, characterized in that The terminal sends a preamble sequence on Y RO packets, including: In the case of Y=1, the terminal transmits preamble sequences on ROs in multiple subsets of the RO group, respectively, wherein the transmission beams on ROs in the same subset are the same, and the transmission beams on ROs in different subsets are different; When Y is greater than 1, the terminal uses different transmission beams to send preamble sequences on Y RO groups respectively, wherein the transmission beams corresponding to the same RO group are the same, and the transmission beams corresponding to different groups are different.

3. The method according to claim 2, characterized in that The terminal sends a preamble sequence on Y RO packets, including: Based on at least one of the following, the terminal sends a preamble on Y RO packets: A first signaling for configuring a random access channel RACH; First indication information, where the first indication information is used to indicate a sending mode of a preamble sequence or a value of Y; The second indication information is used to indicate at least one of a plurality of beams corresponding to different subsets of the same RO group, a plurality of beams corresponding to different RO groups, a first association relationship between Y RO groups and a plurality of beams, and a second association relationship between different subsets of the same RO group and a plurality of beams.

4. The method according to claim 3, characterized in that The physical downlink control channel PDCCH signaling for triggering the random access channel RACH includes at least one of the first indication information and the second indication information; or, The uplink monitoring reference signal SRS resource indication field in the PDCCH signaling that triggers the RACH includes at least one of the first indication information and the second indication information.

5. The method according to claim 3 or 4, characterized in that: The radio resource control signaling indicates whether at least one of the first indication information and the second indication information exists.

6. The method according to any one of claims 1 to 5, characterized in that: In the case of Y=1, the spatial relationship of the m1th RO of the n1th subset or the RO of the n1th subset is determined according to the target signal, wherein the ROs in the group are divided into multiple subsets, and n1 and m1 are both integers greater than zero; When Y is greater than 1, the spatial relationship of the m2th RO of the n2th group or the ROs in the n2th group is determined according to the target signal, wherein n2 and m2 are both integers greater than zero.

7. The method according to any one of claims 1 to 6, characterized in that: The method further comprises: The terminal receives scheduling information of a random access response, wherein the scheduling information is scrambled using first information; The terminal receives the random access response according to the scheduling information; The first information includes a random access radio network temporary identifier RA-CRNTI calculated according to the m3th RO of each group in the group to which the first target RO belongs, the first target RO includes the RO where the received preamble sequence is located, and m3 is an integer greater than zero.

8. The method according to claim 7, characterized in that The random access response carries at least one of the following: An index of the first target RO; an index of the group to which the first target RO belongs; An index of a preamble sequence on the first target RO; A first power offset value, wherein the first power offset value includes: a deviation of a path loss between at least one device among devices receiving the preamble sequence on the first target RO and the terminal relative to a first reference value; An index of a timing advance group TAG corresponding to the first target RO; A time advance command TAC corresponding to the first target RO; The TAC offset value corresponding to the first target RO.

9. The method according to claim 8, characterized in that The first reference value is determined according to the target signal or the second target RO; Wherein, the second target RO satisfies at least one of the following: In the case of Y=1, the second target RO includes the m4th RO in the group, where m4 is an integer greater than zero; When Y is greater than 1, the second target RO includes the RO in the m5th group; The spatial relationship information corresponding to the second target RO is determined according to the target signal.

10. The method according to claim 8 or 9, characterized in that: ROs using the same beam correspond to the same second information, where the second information includes at least one of a TAG and a TAC.

11. The method according to any one of claims 7 to 10, characterized in that: The method further comprises: The terminal sends a physical uplink shared channel PUSCH according to the random access response; The spatial relationship of the physical uplink shared channel PUSCH is determined according to a third target RO, and the third target RO includes the kth RO among the ROs indicated in the random access response, where k is an integer greater than zero.

12. The method according to any one of claims 1 to 11, characterized in that: The method further comprises: The terminal receives SRS resource set configuration information; The terminal sends an SRS according to the SRS resource set configuration information; The spatial relationship information of the SRS resources in the SRS resource set and at least one item in the SRS resource set are associated with at least one of the following: RO index of the physical random access channel PRACH; Preamble sequence index for PRACH transmission; RACH configuration index.

13. The method according to claim 12, characterized in that The SRS resource set configuration information includes at least one of the following: The purpose of the SRS resource set; Spatial relationship information of SRS resources in the SRS resource set; The power control parameter of the SRS resource set.

14. The method according to claim 13, characterized in that The power control parameter of the SRS resource set includes at least one of the following: Path loss reference signal index; A second power offset value, wherein the second power offset value includes: a deviation of a path loss between at least one device among the devices receiving the preamble sequence and the terminal relative to a second reference value, wherein the second reference value is determined according to the path loss reference signal.

15. The method according to any one of claims 1 to 14, characterized in that The method further comprises: The terminal receives uplink beam configuration information; The terminal determines, according to the uplink beam configuration information, a transmit beam and a transmit power of a target object, wherein the target object includes at least one of a PUSCH, a physical uplink control channel PUCCH, and an SRS; The terminal uses the transmission power and transmits the target object through the transmission beam; The uplink beam configuration information includes at least one of the following: Quasi co-location type D information, wherein the quasi co-location type D information is used to indicate an uplink beam; a second power offset value, the second power offset value comprising: a deviation of a path loss between at least one device among the devices receiving the preamble sequence and the terminal relative to a second reference value, the second reference value being determined according to a path loss reference signal; Timing advance information; Path loss reference signal information.

16. A transmission method, characterized in that: The method comprises: The first network side device configures a packet number Y of a transmission opportunity RO for sending a preamble sequence; Wherein, Y is an integer greater than zero, the ROs in the Y groups are associated with the same target signal, and the ROs in the same group are used to send the same preamble sequence.

17. The method according to claim 16, characterized in that The method further comprises: The first network side device receives a leading sequence; The first network side device sends scheduling information of a random access response according to the received preamble sequence, wherein the scheduling information is scrambled using the first information; The first network side device sends the random access response; The first information includes a random access radio network temporary identifier RA-CRNTI calculated according to the m3th RO of each group in the group to which the first target RO belongs, the first target RO includes the RO where the received preamble sequence is located, and m3 is an integer greater than zero.

18. The method according to claim 17, characterized in that Before the first network side device sends scheduling information of a random access response according to the received preamble sequence, the method further includes: The first network side device receives target information sent by the second network side device, wherein the target information is used to indicate the RO or RO group where the preamble sequence received by the second network side device is located.

19. The method according to claim 17 or 18, characterized in that The random access response carries at least one of the following: An index of the first target RO; an index of the group to which the first target RO belongs; An index of a preamble sequence on the first target RO; A first power offset value, wherein the first power offset value includes: a deviation of a path loss between at least one device among the devices receiving the preamble sequence on the first target RO and the terminal relative to a first reference value; An index of a timing advance group TAG corresponding to the first target RO; A time advance command TAC corresponding to the first target RO; The TAC offset value corresponding to the first target RO.

20. The method according to claim 19, characterized in that The first reference value is determined according to the target signal or the second target RO; Wherein, the second target RO satisfies at least one of the following: In the case of Y=1, the second target RO includes the m4th RO in the group, where m4 is an integer greater than zero; When Y is greater than 1, the second target RO includes the RO in the m5th group; The spatial relationship information corresponding to the second target RO is determined according to the target signal.

21. The method according to claim 19 or 20, characterized in that ROs using the same beam correspond to the same second information, where the second information includes at least one of a TAG and a TAC.

22. The method according to any one of claims 17 to 21, characterized in that The method further comprises: The first network side device receives a physical uplink shared channel PUSCH; The spatial relationship of the physical uplink shared channel PUSCH is determined according to a third target RO, and the third target RO includes the kth RO among the ROs indicated in the random access response, where k is an integer greater than zero.

23. The method according to any one of claims 16 to 22, characterized in that The method further comprises: The first network side device sends uplink monitoring reference signal SRS resource set configuration information; The first network side device receives the SRS sent by the terminal according to the SRS resource configuration information; The spatial relationship information of the SRS resources in the SRS resource set and at least one item in the SRS resource set are associated with at least one of the following: RO index of the physical random access channel PRACH; Preamble sequence index for PRACH transmission; RACH configuration index.

24. The method according to claim 23, characterized in that The SRS resource set configuration information includes at least one of the following: The purpose of the SRS resource set; Spatial relationship information of SRS resources in the SRS resource set; The power control parameter of the SRS resource set.

25. The method according to claim 24, characterized in that The power control parameter of the SRS resource set includes at least one of the following: Path loss reference signal index; A second power offset value, wherein the second power offset value includes: a deviation of a path loss between at least one device among the devices receiving the preamble sequence and the terminal relative to a second reference value, wherein the second reference value is determined according to the path loss reference signal.

26. The method according to any one of claims 16 to 25, characterized in that The method further comprises: The first network side device sends uplink beam configuration information; The first network side device receives a target object sent by the terminal according to the uplink beam configuration information, wherein the target object includes at least one of a PUSCH, a physical uplink control channel PUCCH, and an SRS; The uplink beam configuration information includes at least one of the following: Quasi co-location type D information, wherein the quasi co-location type D information is used to indicate an uplink beam; a second power offset value, the second power offset value comprising: a deviation of a path loss between at least one device among the devices receiving the preamble sequence and the terminal relative to a second reference value, the second reference value being determined according to a path loss reference signal; Timing advance information; Path loss reference signal information.

27. A transmission method, characterized in that: The method comprises: The second network side device receives the leading sequence; The second network side device sends target information to the first network side device, wherein the target information is used to indicate the transmission opportunity RO or RO group where the preamble sequence received by the second network side device is located.

28. A transmission method, characterized in that: The method comprises: The terminal receives uplink monitoring reference signal SRS resource set configuration information; The terminal sends an SRS according to the SRS resource set configuration information; The spatial relationship information of the SRS resources in the SRS resource set and at least one item in the SRS resource set are associated with at least one of the following: RO index of the physical random access channel PRACH; Preamble sequence index for PRACH transmission; RACH configuration index.

29. The method according to claim 28, characterized in that The SRS resource set configuration information includes at least one of the following: The purpose of the SRS resource set; Spatial relationship information of SRS resources in the SRS resource set; The power control parameter of the SRS resource set.

30. The method according to claim 29, characterized in that The power control parameter of the SRS resource set includes at least one of the following: Path loss reference signal index; A second power offset value, wherein the second power offset value includes: a deviation of a path loss between at least one device among the devices receiving the preamble sequence and the terminal relative to a second reference value, wherein the second reference value is determined according to the path loss reference signal.

31. The method according to any one of claims 28 to 30, characterized in that The method further comprises: The terminal receives uplink beam configuration information; The terminal determines, according to the uplink beam configuration information, a transmit beam and a transmit power of a target object, wherein the target object includes at least one of a PUSCH, a physical uplink control channel PUCCH, and an SRS; The terminal uses the transmission power and transmits the target object through the transmission beam; The uplink beam configuration information includes at least one of the following: Quasi co-location type D information, wherein the quasi co-location type D information is used to indicate an uplink beam; a second power offset value, the second power offset value comprising: a deviation of a path loss between at least one device among the devices receiving the preamble sequence and the terminal relative to a second reference value, the second reference value being determined according to a path loss reference signal; Timing advance information; Path loss reference signal information.

32. A transmission method, characterized in that: The method comprises: The first network side device sends uplink monitoring reference signal SRS resource set configuration information; The first network side device receives the SRS sent by the terminal according to the SRS resource configuration information; The spatial relationship information of the SRS resources in the SRS resource set and at least one item in the SRS resource set are associated with at least one of the following: RO index of the physical random access channel PRACH; Preamble sequence index for PRACH transmission; RACH configuration index.

33. The method according to claim 32, characterized in that The SRS resource set configuration information includes at least one of the following: The purpose of the SRS resource set; Spatial relationship information of SRS resources in the SRS resource set; The power control parameter of the SRS resource set.

34. The method according to claim 33, characterized in that The power control parameter of the SRS resource set includes at least one of the following: Path loss reference signal index; A second power offset value, wherein the second power offset value includes: a deviation of a path loss between at least one device among the devices receiving the preamble sequence and the terminal relative to a second reference value, wherein the second reference value is determined according to the path loss reference signal.

35. The method according to any one of claims 32 to 34, characterized in that The method further comprises: The first network side device sends uplink beam configuration information; The first network side device receives a target object sent by the terminal according to the uplink beam configuration information, wherein the target object includes at least one of a PUSCH, a physical uplink control channel PUCCH, and an SRS; The uplink beam configuration information includes at least one of the following: Quasi co-location type D information, wherein the quasi co-location type D information is used to indicate an uplink beam; a second power offset value, the second power offset value comprising: a deviation of a path loss between at least one device among the devices receiving the preamble sequence and the terminal relative to a second reference value, the second reference value being determined according to a path loss reference signal; Timing advance information; Path loss reference signal information.

36. A transmission device, characterized in that: Applied to a terminal, the device comprises: A first determination module is used to determine Y random access channel opportunity RO groups associated with the same target signal, where Y is an integer greater than zero; The first sending module is used to send a preamble sequence on Y RO groups, wherein the preamble sequence sent by each group of ROs is the same.

37. A transmission device, characterized in that: Applied to a first network side device, the apparatus comprises: A configuration module, used to configure the number of packets Y of the transmission opportunity RO used to send the preamble sequence; Wherein, Y is an integer greater than zero, the ROs in the Y groups are associated with the same target signal, and the ROs in the same group are used to send the same preamble sequence.

38. A transmission device, characterized in that: Applied to a second network side device, the apparatus comprises: A first receiving module, used for receiving a leading sequence; The second sending module is used to send target information to the first network side device, wherein the target information is used to indicate the transmission opportunity RO or RO group where the preamble sequence received by the second network side device is located.

39. A transmission device, characterized in that: Applied to a terminal, the device comprises: A second receiving module is used to receive uplink monitoring reference signal SRS resource set configuration information; A third sending module, configured to send the SRS according to the SRS resource set configuration information; The spatial relationship information of the SRS resources in the SRS resource set and at least one item in the SRS resource set are associated with at least one of the following: RO index of the physical random access channel PRACH; Preamble sequence index for PRACH transmission; RACH configuration index.

40. A transmission device, characterized in that: Applied to a first network side device, the apparatus comprises: A fourth sending module, configured to send uplink monitoring reference signal SRS resource set configuration information; A third receiving module, configured to receive an SRS sent by a terminal according to the SRS resource configuration information; The spatial relationship information of the SRS resources in the SRS resource set and at least one item in the SRS resource set are associated with at least one of the following: RO index of the physical random access channel PRACH; Preamble sequence index for PRACH transmission; RACH configuration index.

41. A communication device, characterized in that: The method comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the method implements the steps of the transmission method according to any one of claims 1 to 15, or implements the steps of the transmission method according to any one of claims 16 to 26, or implements the steps of the transmission method according to claim 27, or implements the steps of the transmission method according to any one of claims 28 to 31, or implements the steps of the transmission method according to any one of claims 32 to 35.

42. 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, it implements the steps of the transmission method as described in any one of claims 1 to 15, or implements the steps of the transmission method as described in any one of claims 16 to 26, or implements the steps of the transmission method as described in claim 27, or implements the steps of the transmission method as described in any one of claims 28 to 31, or implements the steps of the transmission method as described in any one of claims 32 to 35.

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