Transmission methods, apparatus, communication device and storage medium

Abstract

The present application belongs to the technical field of communications. Disclosed in the present application are transmission methods, an apparatus, a communication device and a storage medium. A transmission method in the embodiments of the present application comprises: a terminal determines Y groups of random access channel occasions (ROs) associated with a same target signal, wherein Y is an integer greater than zero; and the terminal transmits preamble sequences on the Y groups of ROs, wherein preamble sequences transmitted by each group of ROs are the same.

Description

Transmission method, device, communication equipment and storage medium

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on August 10, 2023, with application number 202311010667.5 and invention name “A Transmission Method, Device, Communication Equipment and Storage Medium”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] 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

[0003] Uplink synchronization ensures that uplink signals sent by terminals at different locations within the same cell, using the same timeslot, arrive at the network simultaneously. This ensures that signals from different terminals in the same timeslot arrive at the network equipment synchronously, reducing uplink multi-access interference and multipath interference between terminals within the cell and improving communication quality. Therefore, uplink synchronization is crucial for communication between terminals and the network.

[0004] Among them, in a multi-transmit-receive point (TRP) scenario, the terminal may receive physical downlink control channels (PDCCH) or physical downlink shared channels (PDSCH) sent by multiple TRPs, or the terminal may send physical uplink control channels (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 related art, uplink synchronization between the terminal and one TRP can only be achieved at a time, and the synchronization efficiency is low.

[0005] Summary of the Invention

[0006] 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.

[0007] In a first aspect, a transmission method is provided, the method comprising:

[0008] The terminal determines Y random access channel opportunity RO groups associated with the same target signal, where Y is an integer greater than zero;

[0009] The terminal sends a preamble sequence on Y RO groups, wherein the preamble sequence sent by each group of ROs is the same.

[0010] In a second aspect, a transmission method is provided, the method comprising:

[0011] The first network side device configures a packet number Y of a transmission opportunity RO for sending a preamble sequence;

[0012] 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.

[0013] According to a third aspect, a transmission method is provided, the method comprising:

[0014] The second network side device receives the preamble sequence;

[0015] 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.

[0016] In a fourth aspect, a transmission method is provided, the method comprising:

[0017] The terminal receives uplink monitoring reference signal SRS resource set configuration information;

[0018] The terminal sends an SRS according to the SRS resource set configuration information;

[0019] 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:

[0020] RO index of the physical random access channel PRACH;

[0021] Preamble sequence index for PRACH transmission;

[0022] RACH configuration index.

[0023] In a fifth aspect, a transmission method is provided, the method comprising:

[0024] The first network side device sends uplink monitoring reference signal SRS resource set configuration information;

[0025] The first network side device receives the SRS sent by the terminal according to the SRS resource configuration information;

[0026] 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:

[0027] RO index of the physical random access channel PRACH;

[0028] Preamble sequence index for PRACH transmission;

[0029] RACH configuration index.

[0030] In a sixth aspect, a transmission device is provided, applied to a terminal, the device comprising:

[0031] A first determining module 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;

[0032] The first sending module is configured to send a preamble sequence on Y RO groups, wherein the preamble sequence sent by each group of ROs is the same.

[0033] In a seventh aspect, a transmission device is provided, applied to a first network-side device, the device comprising:

[0034] A configuration module, configured to configure a group number Y of transmission opportunities RO for sending a preamble sequence;

[0035] 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.

[0036] In an eighth aspect, a transmission device is provided, applied to a second network-side device, the device comprising:

[0037] A first receiving module, configured to receive a preamble sequence;

[0038] The second sending module is configured 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.

[0039] In a ninth aspect, a transmission device is provided, applied to a terminal, the device comprising:

[0040] A second receiving module is configured to receive uplink monitoring reference signal SRS resource set configuration information;

[0041] A third sending module is configured to send the SRS according to the SRS resource set configuration information;

[0042] 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:

[0043] RO index of the physical random access channel PRACH;

[0044] Preamble sequence index for PRACH transmission;

[0045] RACH configuration index.

[0046] In a tenth aspect, a transmission device is provided, applied to a first network-side device, the device comprising:

[0047] A fourth sending module, configured to send uplink monitoring reference signal SRS resource set configuration information;

[0048] A third receiving module is configured to receive an SRS sent by a terminal according to the SRS resource configuration information;

[0049] 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:

[0050] RO index of the physical random access channel PRACH;

[0051] Preamble sequence index for PRACH transmission;

[0052] RACH configuration index.

[0053] In the eleventh aspect, a terminal is provided, which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the programs or instructions are executed by the processor, the steps of the method described in the first aspect or the fourth aspect are implemented.

[0054] In a twelfth aspect, a terminal is provided, comprising a processor and a communication interface;

[0055] The processor 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; the communication interface is configured to send preamble sequences on the Y RO groups, where the preamble sequences sent by each RO group are the same;

[0056] or,

[0057] 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;

[0058] 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:

[0059] RO index of the physical random access channel PRACH;

[0060] Preamble sequence index for PRACH transmission;

[0061] RACH configuration index.

[0062] In the thirteenth aspect, a network side device is provided, which terminal includes a processor and a memory, the memory storing programs or instructions that can be run on the processor, and the programs or instructions, when executed by the processor, implement the steps of the method described in the second aspect, the third aspect, or the fifth aspect.

[0063] In a fourteenth aspect, a network-side device is provided, including a processor and a communication interface;

[0064] When the network-side device serves as the first network-side device, the processor is configured to configure a number Y of groups of transmission opportunities ROs for sending preamble sequences; 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;

[0065] or,

[0066] When the network side device serves 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;

[0067] or,

[0068] When the network side device serves 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;

[0069] 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:

[0070] RO index of the physical random access channel PRACH;

[0071] Preamble sequence index for PRACH transmission;

[0072] RACH configuration index.

[0073] 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.

[0074] 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.

[0075] In the seventeenth aspect, a chip is provided, which includes a processor and a communication interface, the communication interface and the processor are coupled, and the processor is used to run programs or instructions 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.

[0076] In aspect 18, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of the method described in aspect 1, aspect 2, aspect 3, aspect 4, or aspect 5.

[0077] In an embodiment of the present application, the terminal is able to determine Y transmission opportunity (RO) groups associated with the same target signal, thereby sending a preamble sequence on the Y RO groups, where Y is an integer greater than zero, and the preamble sequence sent by each group of ROs is the same. It can be seen from this 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 between the terminal and multiple TRPs, and further improving the uplink synchronization efficiency in the multi-TRP scenario. BRIEF DESCRIPTION OF THE DRAWINGS

[0078] FIG1 is a block diagram of a wireless communication system to which embodiments of the present application may be applied;

[0079] FIG2 is a schematic diagram of the mapping relationship between SSB and RO in an embodiment of the present application;

[0080] FIG3 is a flow chart of a transmission method according to an embodiment of the present application;

[0081] FIG4 is a flow chart of another transmission method in an embodiment of the present application;

[0082] FIG5 is a flow chart of another transmission method in an embodiment of the present application;

[0083] FIG6 is a flow chart of another transmission method in an embodiment of the present application;

[0084] FIG7 is a flow chart of another transmission method in an embodiment of the present application;

[0085] FIG8 is a structural block diagram of a transmission device according to an embodiment of the present application;

[0086] FIG9 is a structural block diagram of another transmission device in an embodiment of the present application;

[0087] FIG10 is a block diagram of another transmission device in an embodiment of the present application;

[0088] FIG11 is a block diagram of another transmission device in an embodiment of the present application;

[0089] FIG12 is a structural block diagram of another transmission device in an embodiment of the present application;

[0090] FIG13 is a structural block diagram of a communication device in an embodiment of the present application;

[0091] FIG14 is a block diagram of a terminal in an embodiment of the present application;

[0092] FIG15 is a structural block diagram of a network-side device in an embodiment of the present application. DETAILED DESCRIPTION

[0093] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0094] The terms "first", "second", etc. in this 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 the same type, and do not limit the number of objects, for example, the first object can be one or more. In addition, "or" in this application represents at least one of the connected objects. For example, "A or B" covers three options, such as Option 1: including A but not including B; Option 2: including B but not including A; Option 3: including both A and B. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0095] The term "indication" in this application can be either 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, the operation to be performed, or the requested result, etc. in the instruction sent; an indirect indication can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the operation to be performed or the requested result, etc. based on the judgment result.

[0096] 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 technology described 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 description, but these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) systems. th Generation, 6G) communication system.

[0097] FIG1 is a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device (Wearable Device), an aircraft (Flight Vehicle), a vehicle-mounted device (VUE), a ship-mounted device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), a game console, a personal computer (PC), an ATM, or a self-service machine, or 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, vehicle-mounted controller, vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip or 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.

[0098] 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. Among them, the base station can be referred to as Node B (NB), Evolved Node B (eNB), the next generation Node B (gNB), New Radio Node B (NR Node B), access point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home evolved Node B (home evolved Node B), 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 embodiment 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.

[0099] To facilitate understanding of the transmission method in the embodiments of the present application, the following related technologies are first introduced:

[0100] 1. Uplink (UL) Beam Training

[0101] The network uses the parameter "Uplink Sounding Reference Signal Resource Set (SRS-ResourceSet)" in Radio Resource Control (RRC) signaling to configure one or more uplink sounding reference signal (SRS) resource sets for the UE. For each SRS resource set, the network uses the parameter "Uplink Sounding Reference Signal Resource (SRS-Resource)" in RRC signaling to configure at least one SRS resource, where the maximum number is determined by the UE's capabilities.

[0102] The usage of an SRS resource set is determined by the "usage" parameter in the SRS-ResourceSet field of RRC signaling. When the network sets usage to Beam Management, only one SRS resource can be sent per SRS resource set at a single uplink transmission time. SRS resources in different SRS resource sets can be transmitted simultaneously by the UE.

[0103] The network implements SRS beam indication 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 also includes the reference signal identifier (reference RS ID). The reference RS can be: Synchronization Signal / Physical Broadcast Channel Block (Synchronization Signal / PBCH Block) (also known as Synchronization Signal Block (SSB)), Channel State Information-Reference Signal (CSI-RS), SRS.

[0104] Specifically, when the SRS type is periodic SRS, the network configures a spatial relation for the SRS resource through RRC signaling. When the SRS type is semi-persistent SRS, the network activates one of 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 a spatial relation for the SRS resource through RRC signaling. For aperiodic SRS, the UE receives downlink control information (DCI) sent by the network, and the network uses at least one state in the DCI field to trigger at least one of the configured SRS resource sets.

[0105] 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.

[0106] 2. Physical Random Access Channel (PRACH) Transmission

[0107] In related technologies, PRACH transmission includes a contention-based random access procedure and a non-contention-based random access procedure.

[0108] In the contention-based 4-step random access procedure (RACH), the UE first sends Msg-1 (e.g., random access preamble) to the network;

[0109] Secondly, after the network detects the Preamble, it will send Msg2 or Random Access Response (RAR) message;

[0110] Msg2 is scheduled using the DCI scrambled by the Random Access Radio Network Temporary Identity (RA-RNTI). The RA-RNTI is related to the physical random access channel transmission opportunity (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;

[0111] Here, s_id represents the index of the first OFDM symbol of the PRACH occasion (0≤s_id<14);

[0112] t_id represents the index of the first timeslot of a 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 a 120 kHz timeslot in the system frame containing the PRACH opportunity (0≤t_id<80);

[0113] f_id represents the index of the PRACH occasion in the frequency domain (0≤f_id<8);

[0114] 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).

[0115] 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 as shown in Table 1 below:

[0116] Table 1 RAR grant field

[0117] It is worth noting that Table 1 is merely an example of the RAR authorization field. 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 that listed in Table 1. Accordingly, the number of bits corresponding to the control information in the RAR authorization field is not limited to the example in Table 1.

[0118] Again, after receiving Msg2, the UE confirms that at least one of the preamble numbers 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 Msg3 in the physical downlink control channel (Physical Downlink Control Channel, PDCCH) scrambled by the temporary cell radio network temporary identity (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, completing the four-step random access.

[0119] For the contention-based random access process, different UEs randomly select Preambles for transmission. In this way, different UEs may select the same Preamble to send on the same time-frequency radio resources (such as 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 one Msg3 PUSCH scheduling resource, so the network will include the contention resolution information received in Msg3 in Msg4. If the contention resolution information in the Msg4 received by the UE matches the contention resolution information sent by the UE in the Msg3 PUSCH, the UE considers that the contention resolution is successful. If they do 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 single PRACH transmission time domain location. The number of FDM ROs at a given moment can be: 1, 2, 4, 8, configured using the higher-layer parameter "msg1-FDM." As shown in Figure 2, eight RO resources are distributed across different frequencies at a given moment.

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

[0123] In NR, there is an association between the RO and the actual SSB (SS / PBCH block) transmitted. 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). This 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] Typically, a base station can use different beams to transmit different SSBs. The number of SSBs is configured using the "ssb-PositionsInBurst" parameter. For FR2, the maximum number of SSBs is 64. Based on the strength of the received downlink beam or SSB, the UE selects the RO or "RO and preamble combination" associated with the SSB with a good signal to send Msg1. The network then determines the SSB selected by the UE based on the RO or "RO and preamble combination" of the received preamble and sends Msg2 on the downlink beam corresponding to the SSB, ensuring the reception quality of the downlink signal.

[0126] As shown in Figure 2, at a given moment in time, the number of FDM ROs is 8, the number of SSBs is 4, and each SSB is associated with 2 ROs. The UE first selects an SSB with an RSRP above a threshold based on the Reference Signal Received Power (RSRP) of the received beam (SSB). If multiple SSBs have RSRPs above the threshold, the terminal selects any SSB with an RSRP above the threshold. If no SSB has an RSRP above the threshold, the UE selects an SSB based on the implementation. If the UE determines to transmit the PRACH, Msg1, or Preamble on the RO corresponding to SSB#0, the UE selects an RO and a Preamble from RO#0 and RO#1 for transmission.

[0127] The transmission method provided in the embodiments of the present application is described in detail below through some embodiments and their application scenarios in combination with the accompanying drawings.

[0128] In a first aspect, an embodiment of the present application provides a transmission method. As shown in FIG3 , the method may include the following steps 301 to 302:

[0129] Step 301: The terminal determines Y random access channel opportunity RO groups associated with the same target signal.

[0130] In which, the target signal can be selected based on 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.

[0131] Optionally, the target signal is one of an SSB, a channel state information reference signal (Channel State Information-Reference Signal, CSI-RS), and a sounding reference signal (Sounding Reference Signal, SRS).

[0132] It should be noted that if the target signal is an SRS, the network side will configure RACH resources associated with the SRS.

[0133] 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.

[0134] 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 understood that the division method of the Y RO groups is not limited to this.

[0135] In addition, Y is an integer greater than 0. Optionally, the value of Y can be one of 1, 2, and 4; further, the value of Y can be configured or indicated by the network side.

[0136] Step 302: The terminal sends a preamble sequence on Y RO packets.

[0137] The preamble sequence sent by each group of ROs is the same.

[0138] For example, when Y=1, the same preamble sequence is sent on the ROs in this group;

[0139] For example, when Y=2, the first preamble sequence is sent to all ROs in the first group, and the second preamble sequence is sent to all ROs in the second group. The first preamble sequence is different from the second preamble sequence.

[0140] For example, when Y=4, the first preamble sequence is sent on all ROs in the first group, the second preamble sequence is sent on all ROs in the second group, the third preamble sequence is sent on all ROs in the third group, and the fourth preamble sequence is sent on all ROs in the fourth group. The first to fourth preamble sequences are different.

[0141] 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.

[0142] It can be seen from this 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.

[0143] Optionally, the terminal sends a preamble sequence on Y RO packets, including:

[0144] Item A-1: ​​When Y=1, the terminal transmits preamble sequences on ROs in multiple subsets of the RO group, respectively. ROs in the same subset have the same transmit beam, while ROs in different subsets have different transmit beams.

[0145] 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. Among them, when Y=1, the subset division method of the ROs in a group can be, for example, that every v2 adjacent ROs in a group belong to a subset, or, ROs with odd indexes in a group belong to a subset, and ROs with even indexes belong to a subset.

[0146] As can be seen from item A-1 above, at least some of the ROs associated with the same target signal can form a group. The ROs in this group can then be divided into multiple subsets. In this way, ROs in the same subset can use the same transmit beam to send a preamble sequence, while ROs in different subsets can use different beams to send preamble sequences. For example, if a group includes four ROs, such as RO-1, RO-2, RO-3, and RO-4, and each two adjacent ROs belong to a subset, then ROs RO-1 through RO-4 send the same preamble sequence, and ROs RO-1 and RO-2 both use the first transmit beam, while ROs RO-3 and RO-4 both use the second transmit beam, with the first transmit beam being different from the second transmit beam.

[0147] As can be seen from item A-2 above, at least some of the ROs associated with the same target signal can form multiple groups. The same preamble sequence is transmitted using the same transmit beam within the same group, while different preamble sequences and transmit beams are transmitted in different groups. For example, if RO-5 and RO-6 belong to one group, and RO-7 and RO-8 belong to another group, RO-5 and RO-6 will use the third transmit beam to transmit the fifth preamble sequence, while RO-7 and RO-8 will use the fourth transmit beam to transmit the sixth preamble sequence. The third transmit beam is different from the fourth transmit beam, and the fifth and sixth preamble sequences are different.

[0148] 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.

[0149] Optionally, the terminal sends a preamble sequence on Y RO packets, including:

[0150] The terminal sends a preamble on Y RO packets based on at least one of the following:

[0151] First signaling for configuring a random access channel RACH;

[0152] First indication information, where the first indication information is used to indicate a sending mode of the preamble sequence or a value of Y;

[0153] The second indication information is used to indicate at least one of multiple beams corresponding to different subsets of the same RO group, multiple beams corresponding to different RO groups, a first association relationship between Y RO groups and multiple beams, and a second association relationship between different subsets of the same RO group and multiple beams.

[0154] Here, the first signaling may be downlink control information (Downlink Control Information, DCI).

[0155] 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 methods described in items A-1 and A-2 above.

[0156] Optionally, 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;

[0157] or,

[0158] 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.

[0159] For example, a new indication field may be introduced into the PDCCH signaling of the RACH to indicate the first indication information. The network side may send PDCCH signaling to instruct the terminal on how to send the RACH. In an embodiment of the present application, at least one of the first indication information and the second indication information may also be indicated via PDCCH signaling. 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 packets based on the methods described in items A-1 and A-2 above.

[0160] or

[0161] Alternatively, a new indication field can be introduced into the SRS resource indication field to indicate at least one of the first indication information and the second indication information mentioned above; in this way, if the SRS resource indication field includes a field for indicating at least one of the first indication information and the second indication information mentioned above, the leading sequence is sent on Y RO groups based on the method described in items A-1 and A-2 above.

[0162] Optionally, Radio Resource Control (RRC) signaling indicates whether at least one of the first indication information and the second indication information exists.

[0163] For example, the first RRC signaling can be used to indicate whether the PDCCH signaling of RACH includes the first indication information; the second RRC signaling can be used to indicate whether the PDCCH signaling of 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.

[0164] Here, the first RRC signaling to the fourth RRC signaling may be the same or different.

[0165] Optionally, item C-1: when Y=1, the spatial relationship of the m1th RO in the n1th subset or the RO in 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;

[0166] Item C-2: When Y is greater than 1, the spatial relationship of the m2th RO in the n2th group or the ROs in the n2th group is determined according to the target signal, where n2 and m2 are both integers greater than zero.

[0167] In the above case where Y = 1, if each v2 adjacent ROs belong to a subset, then if m1 = 1, the spatial relationship of the first RO or the v2 consecutive ROs starting from the first RO in the group is determined based on 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 v2 consecutive ROs starting from the first RO covers the direction of the terminal pointing to the first network-side device. In this way, the transmit beam on the first RO or the v2 consecutive ROs starting from the first RO points to the first network-side device, and the path loss between the device to which the transmit beam on the first RO or the v2 consecutive ROs starting from the first RO points and the terminal can be used as a reference for calculating the path loss deviation. The reference is obtained based on target signal measurement.

[0168] In the case where Y is greater than 1, for example, n2=1 and m2=1, the spatial relationship of the first RO in the first group or the first group of ROs is determined based on 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 of ROs covers the direction of the terminal pointing to the first network-side device. In this way, the transmit beam of the first RO in the first group or the first group of ROs points to the first network-side device, and the path loss between the terminal and the device to which the transmit beam of the first RO in the first group or the first group of ROs points can be used as a reference for calculating the path loss deviation. The reference is obtained based on target signal measurement.

[0169] 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 itself and these UL-only TRPs. However, if the path loss deviation benchmark and the path loss between the terminal and the UL-only TRP are known, the path loss between the terminal and the UL-only TRP can be obtained relative to the standard value. The above items C-1 and C-2 can tell the network the benchmark for calculating the path loss deviation.

[0170] Optionally, the method further includes:

[0171] The terminal receives scheduling information of the random access response, wherein the scheduling information is scrambled using the first information;

[0172] receiving, by the terminal, the random access response according to the scheduling information;

[0173] The first information includes a random access radio network temporary identifier RA-CRNTI calculated based on 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.

[0174] It can be seen that after the terminal sends the preamble sequence (such as Msg1), it can receive the scheduling information of the random access response (such as 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.

[0175] It should be noted that the above scheduling information in the embodiment of the present application is scrambled 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.

[0176] 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 case, 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.

[0177] or,

[0178] For example, if Y is greater than 1, and the preamble sequence sent by the terminal and the received preamble sequence are respectively in the first group and the second group, the first information includes: the RA-CRNTI calculated based on the m3th RO in the first group, and the RA-CRNTI calculated based on 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 based on the m3th RO in the first group and the RA-CRNTI calculated based on the m3th RO in the second group for descrambling.

[0179] Optionally, m3=1.

[0180] 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.

[0181] 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 send and receive, but also by the UL-only TRP. In this case, in an embodiment of the present application, the TRP that can send and receive 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 send and receive 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.

[0182] Optionally, the random access response carries at least one of the following items D-1 to D-7:

[0183] Item D-1: Index of the first target RO. As can be seen, the random access response can also carry the index of the RO where the received preamble sequence is located. In this way, the terminal can know that the beam quality on these ROs is good, thus obtaining high-quality coarse beam information and achieving coarse beam pairing between the terminal and the network side.

[0184] It should be noted that the index of the RO is numbered 0...P-1 in order from the start time in a group of ROs, where P is the number of ROs in the group.

[0185] Item D-2: Index of the group to which the first target RO belongs. As can be seen, the random access response can also carry the index of the group to which the RO to which the received preamble sequence belongs belongs. In this way, the terminal can know that the quality of the beams in the groups to which these ROs belong is good, thus obtaining high-quality coarse beam information and achieving coarse beam pairing between the terminal and the network side.

[0186] It should be noted that the index of the RO group is numbered 0...Q-1 in sequence according to the time of 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.

[0187] Item D-3: Index of the preamble sequence on the first target RO. As can be seen, the random access response can also carry the index of the received preamble sequence. In this way, the terminal can determine that the quality of the beam sending these preamble sequences is good, thus obtaining high-quality coarse beam information and achieving coarse beam pairing between the terminal and the network side.

[0188] Item D-4: First power offset value, the first power offset value includes: the deviation of the path loss between at least one device among the devices that receive 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 by the terminal to adjust the transmission power during uplink transmission 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-only TRP-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.

[0189] Item D-5: the index of the timing advance group TAG corresponding to the first target RO.

[0190] Item D-6: Time advance command TAC corresponding to the first target RO.

[0191] Item D-7: TAC offset value corresponding to the first target RO.

[0192] For items D-5 to D-7 above, optionally, 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. ROs using the same beam may correspond to the same TAG and the same TAC.

[0193] The TAC offset value is a deviation from 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.

[0194] In addition, uplink synchronization uses TAGs to manage uplink time. One TAG corresponds to one uplink time. After the terminal receives the TAG and TAC corresponding to the first target RO, it can adjust the uplink time based on the TAG it maintains. The uplink time determined here is used for uplink transmission (such as PUCCH, PUSCH, and SRS).

[0195] Optionally, the first reference value is determined according to the target signal or the second target RO;

[0196] The second target RO satisfies at least one of the following E-1 to E-3:

[0197] 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;

[0198] Item E-2: When Y is greater than 1, the second target RO includes the RO in the m5th group;

[0199] Item E-3: The spatial relationship information corresponding to the second target RO is determined according to the target signal.

[0200] The first reference value is determined according to the target signal, such as 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 receive power of the target signal is the first reference value.

[0201] For the above-mentioned item E-1, optionally, m4 = 1. When Y = 1, the second target RO includes the first RO in the group, so 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 transmitting the target signal. Therefore, the first reference value is determined based on the first RO in the group. 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 item E-2, optionally, m5 = 1. When Y is greater than 1, the second target RO includes the ROs in the first group. Thus, the first reference value is determined based on the ROs in the first group. Generally, when Y is greater than 1, the beam on the RO in the first group corresponds to the device transmitting the target signal. Therefore, the first reference value is determined based on the RO in the first group. For example, the difference between the transmit power and the receive power of the target signal is the first reference value.

[0203] 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, so that the direction range indicated by the spatial relationship of the second target RO covers the direction in which the terminal points to the first network side device, such as the transmitting beam on the second target RO points to the first network side device.

[0204] Optionally, the method further includes:

[0205] The terminal sends a physical uplink shared channel PUSCH according to the random access response;

[0206] The spatial relationship of the physical uplink shared channel PUSCH (such as the beam on the PUSCH) is determined according to the 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.

[0207] Optionally, k=1, and the terminal may determine the PUSCH according to the first RO indicated in the random access response, and thus send the PUSCH.

[0208] Optionally, the method further includes:

[0209] The terminal receives SRS resource set configuration information;

[0210] The terminal sends an SRS according to the SRS resource set configuration information;

[0211] 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 from J-1 to J-3 below:

[0212] J-1 item: RO index of the physical random access channel PRACH (used to indicate the beam on the RO);

[0213] J-2: PRACH transmission preamble sequence index (used to indicate the beam on the RO where the preamble sequence is located);

[0214] Item J-3: RACH configuration index (used to indicate the beam on the RO associated with the RACH configuration).

[0215] 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, determines the transmit power, and then transmits the SRS using the target beam and the transmit power. After receiving the SRS, the network side determines the uplink beam based on 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, such as the method for the network side to indicate the uplink beam to the terminal as described in item F-1 below.

[0216] 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, so that at least one item in the SRS resource set is associated with the beam on the RO of the PRACH, where 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.

[0217] For item J-2, at least one item in the SRS resource set is associated with the leading sequence index of the PRACH transmission, so that at least one item in the SRS resource set is associated with the beam on the RO where the leading sequence index of the PRACH transmission is located, where 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-3, at least one item in the SRS resource set is associated with the RACH configuration index, so that at least one item in the SRS resource set is associated with the beam on the RO associated with the RACH configuration index, where 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] Among them, as mentioned above, the network side can inform the terminal of the coarse beam information with good quality through the above items D-1 to D-3. On this basis, in order to save the time and complexity of beam training, the network side can also "associate at least one of the spatial relationship information of the SRS resource and the SRS resource concentration with the RO index of the PRACH, the preamble 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.

[0220] It should be noted that the "coarse beam" in this article refers to the beam information of the RO.

[0221] Optionally, the SRS resource set configuration information includes at least one of the following:

[0222] The purpose of the SRS resource set (e.g., beam management, fine beam management);

[0223] Spatial relationship information of SRS resources in the SRS resource set (such as beams corresponding to SRS resources);

[0224] The power control parameter of the SRS resource set (used to determine the transmit power of the SRS).

[0225] Optionally, the power control parameter of the SRS resource set includes at least one of the following H-1 to H-2:

[0226] H-1: Path Loss Reference Signal (PL-RS) index;

[0227] Item H-2: A second power offset value, the second power offset value including: a path loss between at least one device receiving the preamble sequence and the terminal, and a deviation from a second reference value, the second reference value being determined based on the path loss reference signal.

[0228] For the above-mentioned item H-1, the path loss reference signal may be SSB or CSI-RS; wherein, if the item H-1 is defaulted, the terminal may consider the SSB associated with the PRACH associated with the SRS as the path loss reference signal.

[0229] For the above-mentioned item H-2, the second reference value is determined based on the path loss reference signal, such as the second reference value being 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.

[0230] 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.

[0231] 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 to the second reference value and the second power offset value is added to determine the transmission power of the target signal based on the result.

[0232] Optionally, the method further comprises the following steps:

[0233] The terminal receives uplink beam (also referred to as TCI state) configuration information;

[0234] The terminal determines, according to the uplink beam configuration information, a transmit beam and 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);

[0235] The terminal uses the transmission power and transmits the target object through the transmission beam;

[0236] The uplink beam configuration information includes at least one of the following items F-1 to F-4:

[0237] Item F-1: Quasi co-location type D information, where the quasi co-location type D information is used to indicate an uplink beam;

[0238] Item F-2: a second power offset value, the second power offset value including: a path loss between the terminal and at least one of the devices receiving the preamble sequence, and a deviation from a second reference value, the second reference value being determined based on the path loss reference signal; here, the second power offset value may 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.

[0239] Item F-3: Timing advance information;

[0240] Item F-4: Path loss reference signal information.

[0241] 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, or may be the beams with better quality indicated by D-1 to D-3.

[0242] To sum up, in an embodiment of the present application, for multiple UL-only TRPs, uplink synchronization of multiple TRPs is achieved simultaneously 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, so as to achieve the purpose of reducing beam management complexity and delay; 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.

[0243] In a second aspect, an embodiment of the present application provides a transmission method, as shown in FIG4 , which may include the following steps:

[0244] Step 401: The first network-side device configures a packet number Y of a transmission opportunity RO for sending a preamble sequence.

[0245] 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.

[0246] 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 based on the order of the ROs in the time domain. For example, every v1 adjacent ROs belong to a group, where v1 is greater than zero. It is understood that the division method of the Y RO groups is not limited to this.

[0247] Optionally, the value of Y can be one of 1, 2, and 4.

[0248] In addition, the target signal can be selected based on the channel quality of the target signal (e.g., 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, the channel quality of which is higher than the first threshold; it is understandable that the target signal can also be indicated by network signaling. Optionally, the target signal is one of SSB, CSI-RS, and SRS.

[0249] 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, and thus sends the same preamble sequence on the ROs in the same group.

[0250] 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.

[0251] Optionally, the method further includes:

[0252] The first network side device receives a preamble sequence;

[0253] The first network side device sends scheduling information of the random access response according to the received preamble sequence, wherein the scheduling information is scrambled using the first information;

[0254] The first network side device sends the random access response;

[0255] The first information includes a random access radio network temporary identifier RA-CRNTI calculated based on 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.

[0256] It can be seen that after the terminal sends the preamble sequence (such as Msg1), it can receive the scheduling information of the random access response (such as 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.

[0257] It should be noted that the above scheduling information in the embodiment of the present application is scrambled 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.

[0258] 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 case, 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.

[0259] or,

[0260] For example, if Y is greater than 1, and the preamble sequence sent by the terminal and the received preamble sequence are respectively in the first group and the second group, the first information includes: the RA-CRNTI calculated based on the m3th RO in the first group, and the RA-CRNTI calculated based on 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 based on the m3th RO in the first group and the RA-CRNTI calculated based on the m3th RO in the second group for descrambling.

[0261] Optionally, m3=1.

[0262] 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:

[0263] 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.

[0264] Here, optionally, the second network side device only has a receiving capability (eg, does not have a sending capability to the terminal), and the first network side device has a sending and receiving capability.

[0265] The received preamble sequence may include preamble sequences received by multiple network-side devices, such as 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 network-side devices can communicate with each other. Therefore, although the second network-side device does not have the ability to send to the terminal, it can notify the first network-side device of its reception of the preamble sequence, so that the first network-side device can replace the first network-side device in sending relevant information during the uplink synchronization process.

[0266] 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 send and receive, but also by the UL-only TRP. In this case, in an embodiment of the present application, the TRP that can send and receive 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 randomly access the response, the TRP that can send and receive 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.

[0267] Optionally, the random access response carries at least one of the following items D-1 to D-7:

[0268] Item D-1: the index of the first target RO;

[0269] Item D-2: index of the group to which the first target RO belongs;

[0270] Item D-3: index of the leading sequence on the first target RO;

[0271] Item D-4: a first power offset value, the first power offset value comprising: a deviation of a path loss between the terminal and at least one of the devices receiving the preamble sequence on the first target RO relative to a first reference value;

[0272] Item D-5: the index of the timing advance group TAG corresponding to the first target RO;

[0273] Item D-6: Time Advance Command TAC corresponding to the first target RO;

[0274] Item D-7: TAC offset value corresponding to the first target RO.

[0275] Here, the relevant explanations of items D-1 to D-7 can be found in the previous article and will not be repeated here.

[0276] Optionally, the first reference value is determined according to the target signal or the second target RO;

[0277] The second target RO satisfies at least one of the following E-1 to E-3:

[0278] 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;

[0279] Item E-2: When Y is greater than 1, the second target RO includes the RO in the m5th group;

[0280] Item E-3: The spatial relationship information corresponding to the second target RO is determined according to the target signal.

[0281] Here, the relevant explanations of items E-1 to E-3 can be found in the previous article and will not be repeated here.

[0282] Optionally, 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. ROs using the same beam may correspond to the same TAG and the same TAC.

[0283] Optionally, the method further includes:

[0284] The first network side device receives a physical uplink shared channel PUSCH;

[0285] 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.

[0286] Optionally, k=1, and the terminal may determine the PUSCH according to the first RO indicated in the random access response, and thus send the PUSCH.

[0287] Optionally, the method further includes:

[0288] The first network side device sends SRS resource set configuration information;

[0289] The first network side device receives the SRS sent by the terminal according to the SRS resource configuration information;

[0290] 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 from J-1 to J-3 below:

[0291] J-1 item: RO index of the physical random access channel PRACH (used to indicate the beam on the RO);

[0292] J-2: PRACH transmission preamble sequence index (used to indicate the beam on the RO where the preamble sequence is located);

[0293] Item J-3: RACH configuration index (used to indicate the beam on the RO associated with the RACH configuration).

[0294] Here, the relevant explanations of items J-1 to J-3 can be found in the previous article and will not be repeated here.

[0295] 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, determines the transmit power, and then transmits the SRS using the target beam and the transmit power. After receiving the SRS, the network side determines the uplink beam based on 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, such as the method for the network side to indicate the uplink beam to the terminal as described in item F-1 below.

[0296] Optionally, the SRS resource set configuration information includes at least one of the following:

[0297] The purpose of the SRS resource set (e.g., beam management, fine beam management);

[0298] Spatial relationship information of SRS resources in the SRS resource set (such as beams corresponding to SRS resources);

[0299] The power control parameters of the SRS resource set.

[0300] Optionally, the power control parameter of the SRS resource set includes at least one of the following H-1 to H-2:

[0301] H-1 item: path loss reference signal index;

[0302] Item H-2: A second power offset value, the second power offset value including: a path loss between at least one device receiving the preamble sequence and the terminal, and a deviation from a second reference value, the second reference value being determined based on the path loss reference signal.

[0303] Here, the relevant explanations of items H-1 to H-2 can be found in the previous article and will not be repeated here.

[0304] Optionally, the method further includes:

[0305] The first network side device sends uplink beam configuration information;

[0306] 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;

[0307] The uplink beam configuration information includes at least one of the following items F-1 to F-4:

[0308] Item F-1: Quasi co-location type D information, where the quasi co-location type D information is used to indicate an uplink beam;

[0309] Item F-2: a second power offset value, the second power offset value comprising: a deviation of a path loss between at least one of the devices receiving the preamble sequence and the terminal relative to a second reference value, the second reference value being determined based on the path loss reference signal;

[0310] Item F-3: Timing advance information;

[0311] Item F-4: Path loss reference signal information.

[0312] In addition, the quasi-co-location D information can be the target beam for sending SRS determined by the terminal performing beam training according to the SRS resource set configuration information in the above text, or it can be the beam with better quality indicated by D-1 to D-3 in the above text.

[0313] In a third aspect, an embodiment of the present application provides a transmission method, as shown in FIG5 , the method comprising the following steps:

[0314] Step 501: The second network side device receives a preamble sequence;

[0315] 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.

[0316] Here, optionally, the second network side device only has a receiving capability (eg, does not have a sending capability to the terminal), and the first network side device has a sending and receiving capability.

[0317] The received preamble sequence may include preamble sequences received by multiple network-side devices, such as 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 network-side devices can communicate with each other. Therefore, although the second network-side device does not have the ability to send to the terminal, it can notify the first network-side device of its reception of the preamble sequence, so that the first network-side device can replace the first network-side device in sending relevant information during the uplink synchronization process.

[0318] 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:

[0319] Step W1: The terminal determines Y RO groups associated with the same target signal;

[0320] Step W2: The terminal sends a preamble sequence on Y RO packets;

[0321] In the case of 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;

[0322] 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.

[0323] 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;

[0324] 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;

[0325] 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;

[0326] Step W6: The first network-side device sends scheduling information of a random access response to the terminal, where the scheduling information is scrambled using first information, the first information including a random access radio network temporary identifier RA-CRNTI calculated based on the m3th RO of each group in the group to which the first target RO belongs, the first target RO including the RO where the received preamble sequence (such as 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;

[0327] Step W7: The first network side device sends a random access response to the terminal;

[0328] Step W8: The terminal receives scheduling information of the random access response, and receives the random access response according to the scheduling information; wherein the random access response carries at least one of the following:

[0329] The index of the first target RO;

[0330] an index of the group to which the first target RO belongs;

[0331] An index of a preamble sequence on the first target RO;

[0332] a first power offset value, the first power offset value comprising: a deviation of a path loss between the terminal and at least one of the devices receiving the preamble sequence on the first target RO relative to a first reference value;

[0333] An index of a timing advance group TAG corresponding to the first target RO;

[0334] a time advance command TAC corresponding to the first target RO;

[0335] The TAC offset value corresponding to the first target RO.

[0336] Step W9: The terminal sends a PUSCH according to the random access response;

[0337] 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;

[0338] Step W10: The first network-side device sends SRS resource set configuration information to the terminal;

[0339] 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:

[0340] RO index of PRACH;

[0341] Preamble sequence index for PRACH transmission;

[0342] RACH configuration index.

[0343] Step W11: The terminal sends SRS according to the received SRS resource set configuration information;

[0344] Step W12: The first network-side device receives the SRS and determines an uplink beam according to the received SRS;

[0345] Step W13: The first network side device sends the configuration information of the uplink beam to the terminal.

[0346] 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.

[0347] Fourthly, in related technologies, 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, as shown in Figure 6, which may include the following steps:

[0348] Step 601: The terminal receives uplink monitoring reference signal SRS resource set configuration information;

[0349] Step 602: The terminal sends an SRS according to the SRS resource set configuration information;

[0350] 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 from J-1 to J-3 below:

[0351] J-1 item: RO index of the physical random access channel PRACH (used to indicate the beam on the RO);

[0352] J-2: PRACH transmission preamble sequence index (used to indicate the beam on the RO where the preamble sequence is located);

[0353] Item J-3: RACH configuration index (used to indicate the beam on the RO associated with the RACH configuration).

[0354] 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, so that at least one item in the SRS resource set is associated with the beam on the RO of the PRACH, where 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.

[0355] For item J-2, at least one item in the SRS resource set is associated with the leading sequence index of the PRACH transmission, so that at least one item in the SRS resource set is associated with the beam on the RO where the leading sequence index of the PRACH transmission is located, where 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.

[0356] For item J-3, at least one item in the SRS resource set is associated with the RACH configuration index, so that at least one item in the SRS resource set is associated with the beam on the RO associated with the RACH configuration index, where 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] 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.

[0358] Optionally, the RO indicated by items J-1 to J-3 above may be a beam quality greater than a preset threshold, and the RO indicated by items J-1 to J-3 above 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.

[0359] Optionally, the SRS resource set configuration information includes at least one of the following:

[0360] The purpose of the SRS resource set;

[0361] Spatial relationship information of SRS resources in the SRS resource set;

[0362] The power control parameters of the SRS resource set.

[0363] Optionally, the power control parameter of the SRS resource set includes at least one of the following H-1 to H-2:

[0364] H-1 item: path loss reference signal index;

[0365] Item H-2: A second power offset value, the second power offset value including: a path loss between at least one device receiving the preamble sequence and the terminal, and a deviation from a second reference value, the second reference value being determined based on the path loss reference signal.

[0366] Here, the relevant explanations about items H-1 to H-2 can be found in the above text and will not be repeated here.

[0367] Optionally, the method further includes:

[0368] The terminal receives uplink beam configuration information;

[0369] The terminal determines, according to the uplink beam configuration information, a transmit beam and 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;

[0370] The terminal uses the transmission power and transmits the target object through the transmission beam;

[0371] The uplink beam configuration information includes at least one of the following items F-1 to F-4:

[0372] Item F-1: Quasi co-location type D information, where the quasi co-location type D information is used to indicate an uplink beam;

[0373] Item F-2: a second power offset value, the second power offset value comprising: a deviation of a path loss between at least one of the devices receiving the preamble sequence and the terminal relative to a second reference value, the second reference value being determined based on a path loss reference signal;

[0374] Item F-3: Timing advance information;

[0375] Item F-4: Path loss reference signal information.

[0376] Here, the relevant explanations about items F-1 to F-4 can be found in the previous article and will not be repeated here.

[0377] In a fifth aspect, an embodiment of the present application provides a transmission method, as shown in FIG7 , which may include the following steps:

[0378] Step 701: A first network-side device sends uplink monitoring reference signal (SRS) resource set configuration information;

[0379] Step 702: The first network-side device receives the SRS sent by the terminal according to the SRS resource configuration information;

[0380] 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 from J-1 to J-3 below:

[0381] J-1 item: RO index of the physical random access channel PRACH (used to indicate the beam on the RO);

[0382] J-2: PRACH transmission preamble sequence index (used to indicate the beam on the RO where the preamble sequence is located);

[0383] Item J-3: RACH configuration index (used to indicate the beam on the RO associated with the RACH configuration).

[0384] 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, so that at least one item in the SRS resource set is associated with the beam on the RO of the PRACH, where 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.

[0385] For item J-2, at least one item in the SRS resource set is associated with the leading sequence index of the PRACH transmission, so that at least one item in the SRS resource set is associated with the beam on the RO where the leading sequence index of the PRACH transmission is located, where 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.

[0386] For item J-3, at least one item in the SRS resource set is associated with the RACH configuration index, so that at least one item in the SRS resource set is associated with the beam on the RO associated with the RACH configuration index, where 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] 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.

[0388] Optionally, the RO indicated by items J-1 to J-3 above may be a beam quality greater than a preset threshold, and the RO indicated by items J-1 to J-3 above 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.

[0389] Optionally, the SRS resource set configuration information includes at least one of the following:

[0390] The purpose of the SRS resource set;

[0391] Spatial relationship information of SRS resources in the SRS resource set;

[0392] The power control parameters of the SRS resource set.

[0393] Optionally, the power control parameter of the SRS resource set includes at least one of the following H-1 to H-2:

[0394] H-1 item: path loss reference signal index;

[0395] Item H-2: A second power offset value, the second power offset value including: a path loss between at least one device receiving the preamble sequence and the terminal, and a deviation from a second reference value, the second reference value being determined based on the path loss reference signal.

[0396] Here, the relevant explanations about items H-1 to H-2 can be found in the above text and will not be repeated here.

[0397] Optionally, the method further includes:

[0398] The first network side device sends uplink beam configuration information;

[0399] 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;

[0400] The uplink beam configuration information includes at least one of the following items F-1 to F-4:

[0401] Item F-1: Quasi co-location type D information, where the quasi co-location type D information is used to indicate an uplink beam;

[0402] Item F-2: a second power offset value, the second power offset value comprising: a deviation of a path loss between at least one of the devices receiving the preamble sequence and the terminal relative to a second reference value, the second reference value being determined based on a path loss reference signal;

[0403] Item F-3: Timing advance information;

[0404] Item F-4: Path loss reference signal information.

[0405] Here, the relevant explanations about items F-1 to F-4 can be found in the previous article and will not be repeated here.

[0406] 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.

[0407] In a sixth aspect, an embodiment of the present application provides a transmission device, as shown in FIG8 , wherein the transmission device 80 includes the following modules:

[0408] A first determining 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;

[0409] 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.

[0410] Optionally, the first sending module 802 is specifically configured to:

[0411] When Y=1, the preamble sequences are respectively transmitted on the ROs in the multiple subsets of the RO group, wherein the transmission beams of the ROs in the same subset are the same, and the transmission beams of the ROs in different subsets are different;

[0412] When Y is greater than 1, different transmission beams are used to transmit the preamble sequence 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.

[0413] Optionally, the first sending module 802 is specifically configured to:

[0414] Send a preamble on Y RO packets based on at least one of the following:

[0415] First signaling for configuring a random access channel RACH;

[0416] First indication information, where the first indication information is used to indicate a sending mode of the preamble sequence or a value of Y;

[0417] The second indication information is used to indicate at least one of multiple beams corresponding to different subsets of the same RO group, multiple beams corresponding to different RO groups, a first association relationship between Y RO groups and multiple beams, and a second association relationship between different subsets of the same RO group and multiple beams.

[0418] Optionally, 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;

[0419] or,

[0420] 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.

[0421] Optionally, radio resource control signaling indicates whether at least one of the first indication information and the second indication information exists.

[0422] Optionally, when Y=1, the spatial relationship of the m1th RO in the n1th subset or the ROs in 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;

[0423] When Y is greater than 1, the spatial relationship of the m2th RO in the n2th group or the ROs in the n2th group is determined according to the target signal, where n2 and m2 are both integers greater than zero.

[0424] Optionally, the device further comprises:

[0425] a fourth receiving module, configured to receive scheduling information of a random access response, wherein the scheduling information is scrambled using the first information;

[0426] a fifth sending module, configured to receive the random access response according to the scheduling information;

[0427] The first information includes a random access radio network temporary identifier RA-CRNTI calculated based on 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.

[0428] Optionally, the random access response carries at least one of the following:

[0429] The index of the first target RO;

[0430] an index of the group to which the first target RO belongs;

[0431] An index of a preamble sequence on the first target RO;

[0432] a first power offset value, the first power offset value comprising: a deviation of a path loss between the terminal and at least one of the devices receiving the preamble sequence on the first target RO relative to a first reference value;

[0433] An index of a timing advance group TAG corresponding to the first target RO;

[0434] a time advance command TAC corresponding to the first target RO;

[0435] The TAC offset value corresponding to the first target RO.

[0436] Optionally, the first reference value is determined according to the target signal or the second target RO;

[0437] The second target RO satisfies at least one of the following:

[0438] 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;

[0439] When Y is greater than 1, the second target RO includes the RO in the m5th group;

[0440] The spatial relationship information corresponding to the second target RO is determined according to the target signal.

[0441] Optionally, 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.

[0442] Optionally, the device further comprises:

[0443] A sixth sending module, configured to send a physical uplink shared channel PUSCH according to the random access response;

[0444] 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.

[0445] Optionally, the device further comprises:

[0446] A second receiving module is used to receive SRS resource set configuration information;

[0447] A third sending module is configured to send the SRS according to the SRS resource set configuration information;

[0448] 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:

[0449] RO index of the physical random access channel PRACH;

[0450] Preamble sequence index for PRACH transmission;

[0451] RACH configuration index.

[0452] Optionally, the SRS resource set configuration information includes at least one of the following:

[0453] The purpose of the SRS resource set;

[0454] Spatial relationship information of SRS resources in the SRS resource set;

[0455] The power control parameters of the SRS resource set.

[0456] Optionally, the power control parameter of the SRS resource set includes at least one of the following:

[0457] Path loss reference signal index;

[0458] A 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, where the second reference value is determined according to the path loss reference signal.

[0459] Optionally, the device further comprises:

[0460] a fifth receiving module, configured to receive uplink beam configuration information;

[0461] A second determining module is configured to determine a transmit beam and 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;

[0462] a seventh transmitting module, configured to transmit the target object using the transmitting power and the transmitting beam;

[0463] The uplink beam configuration information includes at least one of the following:

[0464] Quasi co-location type D information, wherein the quasi co-location type D information is used to indicate an uplink beam;

[0465] a second power offset value, the second power offset value comprising: a deviation of a path loss between at least one of the devices receiving the preamble sequence and the terminal relative to a second reference value, the second reference value being determined based on a path loss reference signal;

[0466] Timing advance information;

[0467] Path loss reference signal information.

[0468] The transmission device in the embodiments of the present application can be an electronic device, such as an electronic device with an operating system, or a component of an electronic device, such as an integrated circuit or chip. The electronic device can be a terminal. For example, the terminal can include, but is not limited to, the types of terminal 11 listed above, and the embodiments of the present application do not specifically limit this.

[0469] The transmission device provided in the embodiment of the present application can implement each process implemented in the method embodiment of Figure 3 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0470] In a seventh aspect, an embodiment of the present application provides a transmission device, which is applied to a first network-side device. As shown in FIG9 , the transmission device 90 includes the following modules:

[0471] A configuration module 901 is configured to configure a group number Y of transmission opportunities RO for sending preamble sequences;

[0472] 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.

[0473] Optionally, the device further comprises:

[0474] a sixth receiving module, configured to receive a preamble sequence;

[0475] 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;

[0476] a ninth sending module, configured to send the random access response;

[0477] The first information includes a random access radio network temporary identifier RA-CRNTI calculated based on 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.

[0478] Optionally, the device further comprises:

[0479] The seventh receiving module is configured to receive target information sent by the second network side device, wherein the target information is used to indicate the RO or RO group in which the preamble sequence received by the second network side device is located.

[0480] Optionally, the random access response carries at least one of the following:

[0481] The index of the first target RO;

[0482] an index of the group to which the first target RO belongs;

[0483] An index of a preamble sequence on the first target RO;

[0484] a first power offset value, the first power offset value comprising: a deviation of a path loss between at least one of the devices receiving the preamble sequence on the first target RO and the terminal relative to a first reference value;

[0485] An index of a timing advance group TAG corresponding to the first target RO;

[0486] a time advance command TAC corresponding to the first target RO;

[0487] The TAC offset value corresponding to the first target RO.

[0488] Optionally, the first reference value is determined according to the target signal or the second target RO;

[0489] The second target RO satisfies at least one of the following:

[0490] 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;

[0491] When Y is greater than 1, the second target RO includes the RO in the m5th group;

[0492] The spatial relationship information corresponding to the second target RO is determined according to the target signal.

[0493] Optionally, 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.

[0494] Optionally, the device further comprises:

[0495] a seventh receiving module, configured to receive a physical uplink shared channel PUSCH;

[0496] 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.

[0497] Optionally, the device further comprises:

[0498] A fourth sending module, configured to send uplink monitoring reference signal SRS resource set configuration information;

[0499] A third receiving module is configured to receive an SRS sent by a terminal according to the SRS resource configuration information;

[0500] 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:

[0501] RO index of the physical random access channel PRACH;

[0502] Preamble sequence index for PRACH transmission;

[0503] RACH configuration index.

[0504] Optionally, the SRS resource set configuration information includes at least one of the following:

[0505] The purpose of the SRS resource set;

[0506] Spatial relationship information of SRS resources in the SRS resource set;

[0507] The power control parameters of the SRS resource set.

[0508] Optionally, the power control parameter of the SRS resource set includes at least one of the following:

[0509] Path loss reference signal index;

[0510] A 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, where the second reference value is determined according to the path loss reference signal.

[0511] Optionally, the device further comprises:

[0512] a tenth sending module, configured to send uplink beam configuration information;

[0513] 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;

[0514] The uplink beam configuration information includes at least one of the following:

[0515] Quasi co-location type D information, wherein the quasi co-location type D information is used to indicate an uplink beam;

[0516] a second power offset value, the second power offset value comprising: a deviation of a path loss between at least one of the devices receiving the preamble sequence and the terminal relative to a second reference value, the second reference value being determined based on a path loss reference signal;

[0517] Timing advance information;

[0518] Path loss reference signal information.

[0519] The transmission device in the embodiments of the present application can be an electronic device, such as an electronic device with an operating system, or a component of an electronic device, such as an integrated circuit or chip. The electronic device can be a network-side device. For example, the network-side device can include, but is not limited to, the types of network-side devices 12 listed above, and is not specifically limited in the embodiments of the present application.

[0520] The transmission device provided in the embodiment of the present application can implement the various processes implemented in the method embodiment of Figure 4 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0521] In an eighth aspect, a transmission device is provided, which is applied to a second network-side device. As shown in FIG10 , the transmission device 100 includes the following modules:

[0522] A first receiving module 1001 is configured to receive a preamble sequence;

[0523] The second sending module 1002 is configured 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 in which the preamble sequence received by the second network side device is located.

[0524] The transmission device in the embodiments of the present application can be an electronic device, such as an electronic device with an operating system, or a component of an electronic device, such as an integrated circuit or chip. The electronic device can be a network-side device. For example, the network-side device can include, but is not limited to, the types of network-side devices 12 listed above, and is not specifically limited in the embodiments of the present application.

[0525] The transmission device provided in the embodiment of the present application can implement each process implemented in the method embodiment of Figure 5 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0526] In a ninth aspect, a transmission device is provided, which is applied to a terminal. As shown in FIG11 , the transmission device 110 includes the following modules:

[0527] The second receiving module 1101 is configured to receive uplink monitoring reference signal SRS resource set configuration information;

[0528] A third sending module 1102 is configured to send an SRS according to the SRS resource set configuration information;

[0529] 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:

[0530] RO index of the physical random access channel PRACH;

[0531] Preamble sequence index for PRACH transmission;

[0532] RACH configuration index.

[0533] Optionally, the SRS resource set configuration information includes at least one of the following:

[0534] The purpose of the SRS resource set;

[0535] Spatial relationship information of SRS resources in the SRS resource set;

[0536] The power control parameters of the SRS resource set.

[0537] Optionally, the power control parameter of the SRS resource set includes at least one of the following:

[0538] Path loss reference signal index;

[0539] A 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, where the second reference value is determined according to the path loss reference signal.

[0540] Optionally, the device further comprises:

[0541] a fifth receiving module, configured to receive uplink beam configuration information;

[0542] A second determining module is configured to determine a transmit beam and 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;

[0543] a seventh transmitting module, configured to transmit the target object using the transmitting power and the transmitting beam;

[0544] The uplink beam configuration information includes at least one of the following:

[0545] Quasi co-location type D information, wherein the quasi co-location type D information is used to indicate an uplink beam;

[0546] a second power offset value, the second power offset value comprising: a deviation of a path loss between at least one of the devices receiving the preamble sequence and the terminal relative to a second reference value, the second reference value being determined based on a path loss reference signal;

[0547] Timing advance information;

[0548] Path loss reference signal information.

[0549] The transmission device in the embodiments of the present application can be an electronic device, such as an electronic device with an operating system, or a component of an electronic device, such as an integrated circuit or chip. The electronic device can be a terminal. For example, the terminal can include, but is not limited to, the types of terminal 11 listed above, and the embodiments of the present application do not specifically limit this.

[0550] The transmission device provided in the embodiment of the present application can implement each process implemented in the method embodiment of Figure 6 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0551] In a tenth aspect, a transmission device is provided, which is applied to a first network-side device. As shown in FIG12 , the transmission device 120 includes the following modules:

[0552] The fourth sending module 1201 is configured to send uplink monitoring reference signal SRS resource set configuration information;

[0553] A third receiving module 1202 is configured to receive an SRS sent by a terminal according to the SRS resource configuration information;

[0554] 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:

[0555] RO index of the physical random access channel PRACH;

[0556] Preamble sequence index for PRACH transmission;

[0557] RACH configuration index.

[0558] Optionally, the SRS resource set configuration information includes at least one of the following:

[0559] The purpose of the SRS resource set;

[0560] Spatial relationship information of SRS resources in the SRS resource set;

[0561] The power control parameters of the SRS resource set.

[0562] Optionally, the power control parameter of the SRS resource set includes at least one of the following:

[0563] Path loss reference signal index;

[0564] A 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, where the second reference value is determined according to the path loss reference signal.

[0565] Optionally, the device further comprises:

[0566] a tenth sending module, configured to send uplink beam configuration information;

[0567] an eighth receiving module, configured to receive 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;

[0568] The uplink beam configuration information includes at least one of the following:

[0569] Quasi co-location type D information, wherein the quasi co-location type D information is used to indicate an uplink beam;

[0570] a second power offset value, the second power offset value comprising: a deviation of a path loss between at least one of the devices receiving the preamble sequence and the terminal relative to a second reference value, the second reference value being determined based on a path loss reference signal;

[0571] Timing advance information;

[0572] Path loss reference signal information.

[0573] The transmission device in the embodiments of the present application can be an electronic device, such as an electronic device with an operating system, or a component of an electronic device, such as an integrated circuit or chip. The electronic device can be a network-side device. For example, the network-side device can include, but is not limited to, the types of network-side devices 12 listed above, and is not specifically limited in the embodiments of the present application.

[0574] The transmission device provided in the embodiment of the present application can implement the various processes implemented in the method embodiment of Figure 7 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0575] As shown in Figure 13, an embodiment of the present application further provides a communication device 1300, including a processor 1301 and a memory 1302. 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, when executed by the processor 1301, implements the various steps of the transmission method embodiment described in the first aspect or the fourth aspect above, and can achieve the same technical effect. When the communication device 1300 is a network-side device, the program or instruction, when executed by the processor 1301, implements the various steps of the transmission method embodiment described in the second aspect, the third aspect, or the fifth aspect above, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0576] 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 configured to execute a program or instruction to implement the steps of the method embodiment shown in Figures 3 or 6. This terminal embodiment corresponds to the aforementioned terminal-side method embodiment, and each implementation process and implementation method of the aforementioned method embodiment is applicable to this terminal embodiment and can achieve the same technical effects. Specifically, Figure 14 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of the present application.

[0577] 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.

[0578] Those skilled in the art will appreciate that the terminal 1400 may also include a power supply (such as a battery) to power various components. The power supply may be logically connected to the processor 1410 via a power management system, thereby enabling the power management system to manage charging, discharging, and power consumption. The terminal structure shown in FIG14 does not limit the terminal. The terminal may include more or fewer components than shown, or may combine certain components, or have different component arrangements, which will not be described in detail here.

[0579] It should be understood that in an 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 volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0580] In the embodiment of the present application, after receiving downlink data from a network-side device, the radio frequency unit 1401 may transmit the data to the processor 1410 for processing. Furthermore, the radio frequency unit 1401 may send uplink data to the network-side device. Typically, 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, and the like.

[0581] Memory 1409 can be used to store software programs or instructions and various data. Memory 1409 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store an operating system, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, memory 1409 may include volatile memory or non-volatile memory. 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. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM 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.

[0582] Processor 1410 may include one or more processing units. Optionally, processor 1410 integrates an application processor and a modem processor. The application processor primarily handles operations related to the operating system, user interface, and application programs, while the modem processor primarily processes wireless communication signals, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 1410.

[0583] 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;

[0584] 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.

[0585] Optionally, the radio frequency unit 1401 sends a preamble sequence on Y RO packets, including:

[0586] When Y=1, the preamble sequences are respectively transmitted on the ROs in the multiple subsets of the RO group, wherein the transmission beams of the ROs in the same subset are the same, and the transmission beams of the ROs in different subsets are different;

[0587] When Y is greater than 1, different transmission beams are used to transmit the preamble sequence 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.

[0588] Optionally, the radio frequency unit 1401 sends a preamble sequence on Y RO packets, including:

[0589] Send a preamble on Y RO packets based on at least one of the following:

[0590] First signaling for configuring a random access channel RACH;

[0591] First indication information, where the first indication information is used to indicate a sending mode of the preamble sequence or a value of Y;

[0592] The second indication information is used to indicate at least one of multiple beams corresponding to different subsets of the same RO group, multiple beams corresponding to different RO groups, a first association relationship between Y RO groups and multiple beams, and a second association relationship between different subsets of the same RO group and multiple beams.

[0593] Optionally, 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;

[0594] or,

[0595] 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.

[0596] Optionally, radio resource control signaling indicates whether at least one of the first indication information and the second indication information exists.

[0597] Optionally, when Y=1, the spatial relationship of the m1th RO in the n1th subset or the ROs in 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;

[0598] When Y is greater than 1, the spatial relationship of the m2th RO in the n2th group or the ROs in the n2th group is determined according to the target signal, where n2 and m2 are both integers greater than zero.

[0599] Optionally, the radio frequency unit 1401 is further configured to:

[0600] receiving scheduling information of a random access response, wherein the scheduling information is scrambled using first information;

[0601] receiving the random access response according to the scheduling information;

[0602] The first information includes a random access radio network temporary identifier RA-CRNTI calculated based on 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.

[0603] Optionally, the random access response carries at least one of the following:

[0604] The index of the first target RO;

[0605] an index of the group to which the first target RO belongs;

[0606] An index of a preamble sequence on the first target RO;

[0607] a first power offset value, the first power offset value comprising: a deviation of a path loss between the terminal and at least one of the devices receiving the preamble sequence on the first target RO relative to a first reference value;

[0608] An index of a timing advance group TAG corresponding to the first target RO;

[0609] a time advance command TAC corresponding to the first target RO;

[0610] The TAC offset value corresponding to the first target RO.

[0611] Optionally, the first reference value is determined according to the target signal or the second target RO;

[0612] The second target RO satisfies at least one of the following:

[0613] 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;

[0614] When Y is greater than 1, the second target RO includes the RO in the m5th group;

[0615] The spatial relationship information corresponding to the second target RO is determined according to the target signal.

[0616] Optionally, 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.

[0617] Optionally, the radio frequency unit 1401 is further configured to:

[0618] Sending a physical uplink shared channel PUSCH according to the random access response;

[0619] 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.

[0620] Optionally, the radio frequency unit 1401 is further configured to:

[0621] Receive SRS resource set configuration information;

[0622] Sending SRS according to the SRS resource set configuration information;

[0623] 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:

[0624] RO index of the physical random access channel PRACH;

[0625] Preamble sequence index for PRACH transmission;

[0626] RACH configuration index.

[0627] Optionally, the SRS resource set configuration information includes at least one of the following:

[0628] The purpose of the SRS resource set;

[0629] Spatial relationship information of SRS resources in the SRS resource set;

[0630] The power control parameters of the SRS resource set.

[0631] Optionally, the power control parameter of the SRS resource set includes at least one of the following:

[0632] Path loss reference signal index;

[0633] A 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, where the second reference value is determined according to the path loss reference signal.

[0634] Optionally, the radio frequency unit 1401 is further configured to: receive uplink beam configuration information;

[0635] The processor 1410 is further configured to: determine a transmit beam and transmit power of a target object according to the uplink beam configuration information, where the target object includes at least one of a PUSCH, a physical uplink control channel PUCCH, and an SRS;

[0636] The radio frequency unit 1401 is further configured to use the transmit power and transmit the target object through the transmit beam;

[0637] The uplink beam configuration information includes at least one of the following:

[0638] Quasi co-location type D information, wherein the quasi co-location type D information is used to indicate an uplink beam;

[0639] a second power offset value, the second power offset value comprising: a deviation of a path loss between at least one of the devices receiving the preamble sequence and the terminal relative to a second reference value, the second reference value being determined based on a path loss reference signal;

[0640] Timing advance information;

[0641] Path loss reference signal information.

[0642] In a second aspect, the radio frequency unit 1401 is used for:

[0643] Receive SRS resource set configuration information;

[0644] Sending SRS according to the SRS resource set configuration information;

[0645] 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:

[0646] RO index of the physical random access channel PRACH;

[0647] Preamble sequence index for PRACH transmission;

[0648] RACH configuration index.

[0649] Optionally, the SRS resource set configuration information includes at least one of the following:

[0650] The purpose of the SRS resource set;

[0651] Spatial relationship information of SRS resources in the SRS resource set;

[0652] The power control parameters of the SRS resource set.

[0653] Optionally, the power control parameter of the SRS resource set includes at least one of the following:

[0654] Path loss reference signal index;

[0655] A 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, where the second reference value is determined according to the path loss reference signal.

[0656] Optionally, the radio frequency unit 1401 is further configured to: receive uplink beam configuration information;

[0657] The processor 1410 is further configured to: determine a transmit beam and transmit power of a target object according to the uplink beam configuration information, where the target object includes at least one of a PUSCH, a physical uplink control channel PUCCH, and an SRS;

[0658] The radio frequency unit 1401 is further configured to use the transmit power and transmit the target object through the transmit beam;

[0659] The uplink beam configuration information includes at least one of the following:

[0660] Quasi co-location type D information, wherein the quasi co-location type D information is used to indicate an uplink beam;

[0661] a second power offset value, the second power offset value comprising: a deviation of a path loss between at least one of the devices receiving the preamble sequence and the terminal relative to a second reference value, the second reference value being determined based on a path loss reference signal;

[0662] Timing advance information;

[0663] Path loss reference signal information.

[0664] 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 effects. To avoid repetition, it will not be described here.

[0665] 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 configured to execute a program or instruction to implement the steps of the method embodiment shown in Figure 4, Figure 5, or Figure 7. This network-side device embodiment corresponds to the aforementioned network-side device method embodiment, and each implementation process and implementation method of the aforementioned method embodiment is applicable to this network-side device embodiment and can achieve the same technical effects.

[0666] Specifically, embodiments of the present application also provide a network-side device. As shown in Figure 15 , 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 via 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 transmitted and sends it to the radio frequency device 152. The radio frequency device 152 processes the received information and then sends it through the antenna 151.

[0667] 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.

[0668] The baseband device 153 may include, for example, at least one baseband board, on which multiple chips are arranged, as shown in Figure 15, 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 and execute the network device operations shown in the above method embodiment.

[0669] The network side device may further include a network interface 156 , which is, for example, a Common Public Radio Interface (CPRI).

[0670] Specifically, the network side device 1500 of an embodiment of the present invention also includes: instructions or programs stored in the memory 155 and executable on the processor 154. The processor 154 calls the instructions or programs in the memory 155 to execute the methods executed by the modules shown in FIG6 and achieve the same technical effect. To avoid repetition, they will not be elaborated here.

[0671] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the transmission method embodiment described in the first aspect, second aspect, third aspect, fourth aspect, or fifth aspect above are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0672] 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-transitory readable storage medium.

[0673] 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, second aspect, third aspect, fourth aspect, or fifth aspect above, and can achieve the same technical effect. To avoid repetition, they will not be repeated here.

[0674] 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.

[0675] An embodiment of the present application further provides a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement the various processes of the transmission method embodiment described in the first aspect, second aspect, third aspect, fourth aspect, or fifth aspect above, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0676] 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 or the third aspect or the fifth aspect above.

[0677] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising 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 a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite 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.

[0678] Through the description of the above embodiments, 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-purpose hardware platform, or of course, by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes a number of instructions for enabling a terminal or network-side device to execute the methods described in each embodiment of the present application.

[0679] 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 this application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of this application and the scope of protection of the claims. These implementation methods are all within the protection of this application.

Claims

1. A transmission method, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, and the first target RO includes the received The RO where the leading sequence is located, m3 is an integer greater than zero.

8. The method according to claim 7, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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 of claim 29, wherein: 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: at least one of the devices receiving the preamble sequence The path loss between the device and the terminal is a deviation relative to a second reference value, where 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, wherein: 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, wherein: 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 of claim 32, wherein: 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 of claim 33, wherein: 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, wherein: 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 a terminal according to the uplink beam configuration information, wherein: The target object includes at least one of PUSCH, physical uplink control channel PUCCH, and 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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.

43. A chip, wherein: The chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the method as described in any one of claims 1-35.

44. A computer program product, wherein: The program product is executed by at least one processor to implement the method according to any one of claims 1-35.

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