Prach resource indication methods, apparatus, terminal and network side device

Abstract

The present application relates to the technical field of communications. Disclosed are PRACH resource indication methods, an apparatus, a terminal, and a network side device. A PRACH resource indication method in the embodiments of the present application comprises: a terminal receives first configuration information and first indication information of a network side device, the first configuration information being configuration information of candidate PRACH resources; and, according to the first configuration information and the first indication information, the terminal determines a target PRACH resource among the candidate PRACH resources, the candidate PRACH resources comprising different types of PRACH resources, the different types of PRACH resources at least comprising a second resource, and the second resource being a PRACH resource allowed to be activated or deactivated.

Description

PRACH resource indication method, device, terminal and network side equipment

[0001] Cross-reference

[0002] The present disclosure claims priority to Chinese Patent Application No. 2024101752860, filed on February 7, 2024, entitled “PRACH resource indication method, device, terminal and network side equipment”, the entire contents of which are incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application belongs to the field of communication technology, and particularly relates to a PRACH resource indication method, device, terminal and network side equipment. BACKGROUND

[0004] Network energy saving is of great importance to environmental sustainability, reduction of environmental impact (greenhouse gas emissions) and operational cost savings. As the 5th Generation (5G) communication system becomes popular in various industries and regions, higher level services and applications that need to handle very high data rates, networks become more dense, use more antennas, larger bandwidth and more frequency bands. The environmental impact of 5G needs to be controlled, and new solutions need to be developed to improve network energy saving. th

[0005] In addition, energy consumption has become a key part of the operator's operating costs (OPEX). The energy cost of mobile networks accounts for about 23% of the total cost of operators, and most of the energy consumption comes from the wireless access network, especially from the active antenna unit (AAU), data centers and fiber transmission account for a small share. The power consumption of wireless access can be divided into two parts: the dynamic part only consumes when data transmission and / or reception is being performed, and the static part is always consumed to maintain the operation of the wireless access device, even when data transmission and / or reception is not being performed. In particular, the update speed of the physical random access channel resource used for terminal random access is slow, and cannot cope with the scenario where the system load changes greatly and quickly. When there are fewer terminals, even if most of the physical random access channel resources are not utilized, the network still needs to detect on these resources all the time, resulting in waste of power consumption. SUMMARY

[0006] The embodiments of the present application provide a PRACH resource indication method, device, terminal and network side equipment, which can realize network energy saving and flexibly activate or deactivate PRACH resources.

[0007] In a first aspect, a PRACH resource indication method is provided, the method comprising:

[0008] ​The terminal receives first configuration information and first indication information of the network side device, the first configuration information being configuration information of candidate PRACH resources;

[0009] The terminal determines a target PRACH resource in the candidate PRACH resources according to the first configuration information and the first indication information;

[0010] The candidate PRACH resources include PRACH resources of different types, and the PRACH resources of different types at least include second resources, the second resources being PRACH resources allowed to be activated or deactivated.

[0011] In a second aspect, a PRACH resource indication method is provided, which is executed by a network side device, and the method comprises:

[0012] The network side device sends first configuration information and / or first indication information to a terminal, the first configuration information being configuration information of candidate PRACH resources, so that the terminal determines a target PRACH resource in the candidate PRACH resources according to the first configuration information and the first indication information;

[0013] The candidate PRACH resources include PRACH resources of different types, and the PRACH resources of different types at least include second resources, the second resources being PRACH resources allowed to be activated or deactivated.

[0014] In a third aspect, a PRACH resource indication apparatus applied to a terminal is provided, which comprises:

[0015] A receiving module is configured to receive first configuration information and first indication information of a network side device, the first configuration information being configuration information of candidate PRACH resources;

[0016] A processing module is configured to determine a target PRACH resource in the candidate PRACH resources according to the first configuration information and the first indication information;

[0017] The candidate PRACH resources include PRACH resources of different types, and the PRACH resources of different types at least include second resources, the second resources being PRACH resources allowed to be activated or deactivated.

[0018] In a fourth aspect, a PRACH resource indication apparatus applied to a network side device is provided, which comprises:

[0019] The sending module is configured to send first configuration information and / or first indication information to the terminal, the first configuration information being configuration information of candidate PRACH resources, so that the terminal determines a target PRACH resource in the candidate PRACH resources according to the first configuration information and the first indication information.

[0020] The candidate PRACH resources include PRACH resources of different types, and the PRACH resources of different types at least include the second resources, which are PRACH resources that can be activated or deactivated.

[0021] In a fifth aspect, a terminal is provided, which includes a processor and a memory. The memory stores programs or instructions executable on the processor. When the programs or instructions are executed by the processor, the steps of the method according to the first aspect are implemented.

[0022] In a sixth aspect, a terminal is provided, which includes a processor and a communication interface. The communication interface is configured to receive first configuration information and first indication information from a network-side device. The first configuration information is configuration information of candidate PRACH resources. The processor is configured to determine a target PRACH resource in the candidate PRACH resources according to the first configuration information and the first indication information.

[0023] The candidate PRACH resources include PRACH resources of different types, and the PRACH resources of different types at least include the second resources, which are PRACH resources that can be activated or deactivated.

[0024] In a seventh aspect, a network-side device is provided, which includes a processor and a memory. The memory stores programs or instructions executable on the processor. When the programs or instructions are executed by the processor, the steps of the method according to the second aspect are implemented.

[0025] In an eighth aspect, a network-side device is provided, which includes a processor and a communication interface. The communication interface is configured to send first configuration information and / or first indication information to a terminal. The first configuration information is configuration information of candidate PRACH resources, so that the terminal determines a target PRACH resource in the candidate PRACH resources according to the first configuration information and the first indication information.

[0026] The candidate PRACH resources include PRACH resources of different types, and the PRACH resources of different types at least include the second resources, which are PRACH resources that can be activated or deactivated.

[0027] In a ninth aspect, a readable storage medium is provided, and the readable storage medium stores a program or instructions, which are executed by a processor to implement the steps of the method in the first aspect or the steps of the method in the second aspect.

[0028] In a tenth aspect, a wireless communication system is provided, and the wireless communication system includes a terminal and a network side device, the terminal is configured to implement the steps of the method in the first aspect, and the network side device is configured to implement the steps of the method in the second aspect.

[0029] In an eleventh aspect, a chip is provided, and the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or instructions to implement the steps of the method in the first aspect or the steps of the method in the second aspect.

[0030] In a twelfth aspect, a computer program / program product is provided, and the computer program / program product is stored in a storage medium, and the program / program product is executed by at least one processor to implement the steps of the method in the first aspect or the steps of the method in the second aspect.

[0031] In the embodiments of the present application, the terminal can determine the target PRACH resource in the candidate PRACH resource according to the first configuration information and the first indication information of the network side device, the network side device adjusts the PRACH resource to adjust the resources on which the terminal initiates the random access process, thereby changing the number and time of detection, adjusting the sleep time, and saving the energy of the network side. For example, the network side device can first configure fewer PRACH resources to save energy, and when there are more random access requests or more terminals, the second resource is activated to alleviate the random access collision probability, so that the network energy saving and the flexible activation or deactivation of the PRACH resource can be realized. BRIEF DESCRIPTION OF DRAWINGS

[0032] FIG. 1 is a block diagram of a wireless communication system to which embodiments of the present application can be applied;

[0033] FIG. 2 and FIG. 3 are schematic diagrams of the association between RO and SSB;

[0034] FIG. 4 is a flowchart of a PRACH resource indication method according to an embodiment of the present application;

[0035] FIG. 5 is a flowchart of another PRACH resource indication method according to an embodiment of the present application;

[0036] FIG. 6 is a schematic diagram of the mapping relationship between the traditional RO and the independent RO and the SSB according to an embodiment of the present application;

[0037] FIG. 7 is a schematic diagram of mapping relationship between legacy RO and independent RO and SSB according to another embodiment of the present application;

[0038] FIGS. 8-10 are schematic diagrams of legacy RACH resource and independent RACH resource according to embodiments of the present application;

[0039] FIG. 11 is a schematic diagram of structure of a PRACH resource indication apparatus according to an embodiment of the present application;

[0040] FIG. 12 is a schematic diagram of structure of another PRACH resource indication apparatus according to an embodiment of the present application;

[0041] FIG. 13 is a schematic diagram of structure of a communication device according to an embodiment of the present application;

[0042] FIG. 14 is a schematic diagram of structure of a terminal according to an embodiment of the present application;

[0043] FIG. 15 is a schematic diagram of structure of a network side device according to an embodiment of the present application. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present application will be described clearly below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art belong to the scope of protection of the present application.

[0045] The terms "first", "second", and the like in the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances, 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", "second" are usually a category, and are not limited to the number of objects, for example, the first object can be one or more. In addition, "or" in the present application means at least one of the connected objects. For example, "A or B" covers three schemes, namely, scheme one: including A and not including B; scheme two: including B and not including A; scheme three: including A and including B. The character " / " generally represents that the objects before and after are in an "or" relationship.

[0046] The term "indication" in this application can be either a direct indication (or explicit indication) or an indirect indication (or implicit indication). The direct indication can be understood as that the sender explicitly informs the receiver of specific information, operations to be performed or requested results, etc. in the sent indication. The indirect indication can be understood as that the receiver determines the corresponding information according to the indication sent by the sender, or makes a judgment and determines the operations to be performed or the requested results according to the judgment result.

[0047] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used in the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than the NR system, such as a 6th Generation (6G) communication system.

[0048] FIG. 1 shows a block diagram of a wireless communication system to which embodiments of the present application can be applied. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a terminal-side device such as a mobile phone, a Tablet Personal Computer, a Laptop Computer, a notebook computer, a Personal Digital Assistant (PDA), a palmtop computer, a netbook, an Ultra-mobile Personal Computer (UMPC), a Mobile Internet Device (MID), an Augmented Reality (AR) device, a Virtual Reality (VR) device, a robot, a wearable device, a flight vehicle, a Vehicle User Equipment (VUE), a shipboard device, a Pedestrian User Equipment (PUE), a smart home (a home device with a wireless communication function such as a refrigerator, a television, a washing machine, or furniture), a game console, a Personal Computer (PC), a kiosk, or a self-service machine. The wearable device includes a smart watch, a smart bracelet, a smart earphone, smart glasses, smart jewelry (a smart bracelet, a smart necklace, a smart ring, a smart necklace, a smart anklet, a smart necklace, etc.), a smart wristband, smart clothing, etc. The vehicle-mounted device can also be referred to as a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip, or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network-side device 12 can include an access network device or a core network device. The access network device can 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 can include a base station, a Wireless Local Area Network (WLAN) Access Point (AP), or a Wireless Fidelity (WiFi) node, etc.The base station can be referred to as a Node B (NB), an evolved Node B (eNB), a next generation Node B (gNB), a New Radio Node B (NR Node B), an access point, a relay station (RBS), a serving base station (SBS), a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a home Node B (HNB), a home evolved Node B, a transmission reception point (TRP), or some other suitable terminology in the art, and is not limited to a particular technical terminology, provided that the same technical effect is achieved. It should be noted that in the embodiments of the present application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.

[0049] The core network device can include, but is not limited to, at least one of the following: a core network node, a core network function, a mobility management entity (MME), an access and mobility management function (AMF), a session management function (SMF), a user plane function (UPF), a policy control function (PCF), a policy and charging rules function (PCRF), an edge application server discovery function (EASDF), a unified data management (UDM), a unified data repository (UDR), a home subscriber server (HSS), a centralized network configuration (CNC), a network repository function (NRF), a network exposure function (NEF), a local NEF (or L-NEF), a binding support function (BSF), an application function (AF), and the like. It should be noted that only the core network device in the NR system is taken as an example for introduction in the embodiments of the present application, and the specific type of the core network device is not limited.

[0050] The configuration parameters of Physical Random Access Channel (PRACH) resource and Synchronization Signal and PBCH block (or Synchronization Signal Block, SSB)-PRACH transmission occasion (or PRACH Occasion, RO) are configured in System Information Block (SIB1). In NR, a cell can configure multiple frequency division multiplex (FDM) ROs in a time domain location where PRACH is transmitted. The number of FDM ROs at a time can be {1, 2, 4, 8}, which is determined by the higher layer parameter msg1-FDM.

[0051] The random access preamble can only be transmitted on the time domain resource configured by the parameter PRACHConfigurationIndex and the frequency domain resource configured by the parameter msg1-FDM. The PRACH frequency domain resource n RA ∈ {0, 1, …, M-1}, where M is equal to the higher layer parameter msg1-FDM. In the initial access, the PRACH frequency domain resource n RA The RO resource is numbered in ascending order from the lowest frequency in the initial active uplink bandwidth part, otherwise, the PRACH frequency domain resource n RA The RO resource is numbered in ascending order from the lowest frequency in the active uplink bandwidth part. For example, in FIG. 2, the number of FDM ROs at a time is 8 (msg1-FDM = 8), and the RO resources are numbered in order from low to high in frequency as RO#0 ~ RO#7.

[0052] In NR, there is an association between RO and actually transmitted SSB. RO is associated to SSB in the order of frequency domain (from low frequency to high frequency) first and then time domain. One SSB can be associated with multiple consecutive ROs, or one RO can be associated with multiple SSBs (in this case, different SSBs correspond to different Preambles), which is configured by the network side device through the parameter ssb-perRACH-OccasionAndCB-PreamblesPerSSB. For example, oneEighth represents that one SSB is associated with 8 consecutive ROs, eight represents that 8 SSBs are associated with one RO, and {n4, n8, n12, …} represents the number of Preambles associated with each SSB on one RO, for example, n4 represents that the number of Preambles associated with each SSB on one RO is 4, and n8 represents that the number of Preambles associated with each SSB on one RO is 8.

[0053] After all SSBs are associated with ROs for one round, an SSB-RO mapping cycle is formed. One SSB-to-RO association period can contain one or more SSB-RO mapping cycles. One SSB-to-RO association pattern period can contain one or more SSB-to-RO association periods. The mapping of SSBs to ROs is repeated in cycles of association pattern periods, and the maximum association pattern period is 160 ms.

[0054] Generally, the base station can use different beams to transmit different SSBs, and the number of SSBs is configured by the parameter ssb-PositionsInBurst. For FR2, the maximum number of SSBs is 64. The UE selects the RO associated with the SSB with a good signal and the “RO and preamble combination” to transmit Msg1 according to the strength of the received downlink beam / SSB. In this way, the network side device can determine the SSB selected by the UE according to the received Preamble RO / “RO and preamble combination”. And send Msg2 on the downlink beam corresponding to the SSB to ensure the reception quality of the downlink signal.

[0055] Taking FIG. 2 as an example, the number of FDM ROs at one time is 8, and the number of actually transmitted SSBs is 4, that is, SSB#0, SSB#1, SSB#2, and SSB#3. Each SSB is associated with 2 ROs. If the UE determines to transmit PRACH / Msg1 on the RO corresponding to SSB#0, the UE selects one RO from RO#0 and RO#1 to transmit PRACH.

[0056] For example, in FIG. 3, the number of ROs of FDM at one time is 2, and the number of actually transmitted SSBs is 8, i.e., SSB#0, SSB#1, …, SSB#7, and each 2 SSBs are associated with 1 RO. When multiple SSBs share one RO, the preamble set associated with the multiple SSBs is different, i.e., the same preamble cannot belong to the preamble set associated with different SSBs at the same time. For example, in FIG. 3, RO#0 has 60 preambles, in which the preambles with index 0-29 are associated with SSB#0, and the preambles with index 30-59 are associated with SSB#1. Each square in FIG. 3 indicates an RO, not an SSB, in which the target SSB indicates which SSB / SSBs the RO is associated with.

[0057] Before the UE transmits the PRACH, the UE first selects an SSB with a reference signal received power (RSRP) higher than a threshold according to the received beam (SSB). If there are multiple SSBs with an RSRP higher than the threshold, the terminal can select any SSB with an RSRP higher than the threshold. When there is no SSB with an RSRP higher than the threshold, the UE selects an SSB based on implementation.

[0058] Based on the configuration of the NW (network), the UE obtains the correspondence between the SSB and the RO. After selecting the SSB, the RO corresponding to the selected SSB is used as the RO for transmitting the PRACH / preamble / Msg1. If the selected SSB is associated with multiple ROs, the terminal can select one of the ROs for PRACH / preamble / Msg1 transmission.

[0059] For example, in the example shown in FIG. 2, assuming that the UE selects SSB#1, the UE can select one of RO#2 and RO#3 for PRACH / Msg1 transmission; in the example shown in FIG. 3, assuming that the UE selects SSB#1, the UE can select the available RO closest to the current time among the ROs (RO#0 or 4) associated with SSB#1 for PRACH / Msg1 transmission. In the selected RO, the UE selects one preamble from the preamble set associated with the selected SSB for PRACH transmission. As shown in FIG. 3, one RO is associated with 2 SSBs, so the preambles in the available preamble set associated with the SSBs in one RO are divided into two subsets, each corresponding to one SSB. The UE selects a preamble sequence in the preamble subset corresponding to the selected SSB for PRACH / Msg1 transmission.

[0060] When the network side device configures more RO resources, resource waste may occur, which is not conducive to base station energy saving, and the base station needs to always monitor more ROs; when the network side device configures fewer RO resources, the problem of insufficient random access channel (RACH) resources may occur; a flexible PRACH resource indication mechanism needs to be introduced to achieve the purpose of network side device energy saving and solve the problem of insufficient RACH resources.

[0061] The PRACH resource indication method, device, terminal and network side device provided by the embodiments of the present application will be described in detail in combination with the drawings and some embodiments and application scenarios.

[0062] Please refer to FIG. 4, which is a flowchart of a PRACH resource indication method provided by an embodiment of the present application, the method is executed by a terminal, as shown in FIG. 4, the method includes the following steps:

[0063] Step 101: The terminal receives first configuration information and first indication information of a network side device, the first configuration information being configuration information of candidate PRACH resources;

[0064] Step 102: The terminal determines target PRACH resources in the candidate PRACH resources according to the first configuration information and the first indication information;

[0065] The candidate PRACH resources include PRACH resources of different types, and the PRACH resources of different types at least include second resources, which are PRACH resources allowed to be activated or deactivated.

[0066] In the embodiments of the present application, the terminal can determine target PRACH resources in the candidate PRACH resources according to the first configuration information and the first indication information of the network side device, so that the network side device can first configure fewer PRACH resources for power saving, and when there are more random access requests or more terminals, the second resources are activated to alleviate the random access collision probability, so that network energy saving can be achieved, and the problem of insufficient resources when fewer PRACH resources are configured can be solved.

[0067] In some embodiments, the candidate PRACH resources further include first resources, and the first resources and / or the second resources meet at least one of the following:

[0068] The first resources and the second resources are numbered together and mapped with synchronization signal blocks (SSBs);

[0069] The SSBs of the first resource and the second resource have the same or different mapping relationships with random access occasions ROs;

[0070] The preamble sequence configurations of the first resource and the second resource are the same or different;

[0071] The priorities of the first resource and the second resource are different;

[0072] The time-frequency positions of the first resource and the second resource completely overlap, completely do not overlap, or partially overlap;

[0073] The service types of services associated with the first resource and the second resource are different;

[0074] The quality of services QoSs of services associated with the first resource and the second resource are different;

[0075] The terminal types associated with the first resource and the second resource are different;

[0076] The first resource is PRACH resource that is not allowed to be activated or deactivated.

[0077] In the embodiment, the first resource can be understood as a legacy PRACH resource, the first resource is PRACH resource that is not allowed to be activated or deactivated by indication information or configuration information, and is a resource configured by RACH-ConfigCommon included in Bandwidth Part Uplink Common (BWP-UplinkCommon), and the second resource is RO resource that satisfies at least one of the following conditions:

[0078] Resource independent of the first resource;

[0079] Resource allowed to be activated or deactivated by a network side device;

[0080] Resource having a different mapping manner from the first resource, the mapping manner including mapping of SSB and RO and mapping between preamble and SSB;

[0081] Resource configured by additional RACH-ConfigCommon.

[0082] The second resource can be referred to as additional PRACH resource, separate PRACH resource, or dynamic PRACH resource. In the embodiment, the network side device can first configure fewer PRACH resources for power saving, and when there are more random access requests or more terminals, the second resource is activated to alleviate the random access collision probability, so that network energy saving can be achieved, and the problem of insufficient RACH resources can be solved.

[0083] The mapping relationship between the separate RO and the SSB includes the following modes:

[0084] (1) The separate RO is a time-frequency resource that is completely non-overlapping with the legacy RO.

[0085] When the separate RO is activated, the legacy RO is invalid; or, when the separate RO is activated, the legacy RO remains valid.

[0086] The mapping relationship between the separate RO and the SSB refers to ssb-perRACH-OccasionAndCB-PreamblesPerSSB of the legacy RO. As shown in FIG. 6, the mapping relationship between the dynamic RO and the SSB and the mapping relationship between the legacy RO and the SSB are the same, including the same number of SSBs mapped per RO, the same SSBs associated with the dynamic RO and the legacy RO, and the same number of preambles associated with each SSB.

[0087] (2) The mapping relationship between the separate RO and the SSB refers to a new ssb-perRACH-OccasionAndCB-PreamblesPerSSB; the new ssb-perRACH-OccasionAndCB-PreamblesPerSSB is indicated by a network-side device or configured in advance, and can only configure a new SSB per RO (mapping relationship between SSB and RO) or only configure a new number of preambles per SSB (preamble configuration); as shown in FIG. 7, the mapping relationship between the separate RO and the SSB and the mapping relationship between the legacy RO and the SSB are different, in the legacy RO, SSB per RO = 2, and in the dynamic RO, SSB per RO = 1.

[0088] In addition to the different mapping relationship between the RO and the SSB, the mapping relationship (configuration) between the preamble and the SSB can also be different: for example, in the legacy RO, 20 preambles are associated with each SSB, and each SSB can be configured with multiple preambles of different features; in the dynamic RO, 10 preambles can be associated with each SSB, and each SSB can be configured with multiple preambles of different features.

[0089] In order to alleviate the RACH collision pressure, the network side device can dynamically activate or deactivate the separate RO. In order to make the UE preferentially select the separate RO for random access, the separate RO and the legacy RO can be configured with RO priority, and the UE selects the RO for random access according to the priority. Or for the UE, only the preamble of the network energy saving (NES) feature is configured on the separate RO, and the NES UE can only perform random access on the separate RO.

[0090] In some embodiments, the mapping relationship of the SSBs of the first resource and the second resource to the ROs is the same, including at least one of the following:

[0091] The number and / or number of SSBs mapped to the first resource is the same as the number and / or number of SSBs mapped to the second resource;

[0092] The number of SSBs associated with each time on the first resource is the same as the number of SSBs associated with each time on the second resource.

[0093] In some embodiments, the mapping relationship of the SSBs of the first resource and the second resource to the ROs is different, including at least one of the following:

[0094] The number and / or number of SSBs mapped to the first resource is different from the number and / or number of SSBs mapped to the second resource;

[0095] The number of SSBs associated with each time on the first resource is different from the number of SSBs associated with each time on the second resource.

[0096] In this embodiment, the SSB indexes associated with the first resource and the second resource can be different. For example, if the network device finds that there are many UEs in some directions, it can increase the RACH opportunities in these SSB directions, activate the second resource through the first indication information, and the SSB indexes associated with the second resource can also be indicated by the first indication information. Assuming that there are 8 candidate SSBs, the ssb-PositionsInBurst (bitmap 11111111) indicated by ServingCellConfigCommon corresponds to the SSBs associated with the first resource, so the first resource is associated with 8 SSBs, and the mapping relationship between the SSBs and the ROs of the first resource and the second resource and the mapping relationship between the preambles and the SSBs are the same. The network device indicates the first indication information, and the first indication information contains ssb-PositionsInBurst = bitmap 11110000. The ssb-PositionsInBurst indicated by the first indication information is the SSB index associated with the second resource. The second resource can confirm that it is only associated with the first four SSBs according to the first indication information.

[0097] In some embodiments, the preamble configurations of the first resource and the second resource are different. For example, a UE supporting PRACH adaptation is associated with an NES feature, and the preamble related to the NES feature is only associated with the second resource (separate RO). The UE receiving the indication of the network device can preferentially select the preamble associated with the NES feature on the second resource to initiate random access. Alternatively, the preamble configurations of the first resource and the second resource are different. For example, a UE supporting PRACH adaptation is associated with an NES feature, and the preamble related to the NES feature can be associated with the first resource and the second resource (separate RO). The UE receiving the indication of the network device can preferentially select the preamble associated with the NES feature on the second resource to initiate random access.

[0098] In some embodiments, the first configuration information includes at least one of the following:

[0099] The time domain resource configuration, the frequency domain resource configuration, and the preamble sequence configuration of the first resource can include all parameters of RACH-ConfigCommon.

[0100] The time domain resource configuration and the frequency domain resource configuration of the second resource.

[0101] a preamble configuration of the second resource;

[0102] an SSB index associated with the second resource, which can be indicated by configuring ssb-PositionsInBurst in the second resource configuration, the length of the bitmap used for indication can be based on the number of all possible candidate SSBs, or can be based on the SSBs indicated by the ssb-PositionsInBurst corresponding to the first resource, and further indicate which SSBs are associated with the second resource based on the SSBs indicated by the ssb-PositionsInBurst corresponding to the first resource;

[0103] a time domain relative relationship between the second resource and the first resource.

[0104] In some embodiments, the time domain resource configuration and the frequency domain resource configuration of the second resource include at least one of the following:

[0105] all parameters of a random access channel common configuration RACH-ConfigCommon;

[0106] part of the parameters of RACH-ConfigCommon, such as ssb-perRACH-OccasionAndCB-PreamblesPerSSB, prach-ConfigurationIndex, msg1-FDM

[0107] msg1-FrequencyStart, featureCombinationPreambles, the configurations of these parameters are different from the configurations of the first resource;

[0108] RO grouping information of the second resource that allows to be activated or deactivated;

[0109] target SSB index;

[0110] RO mask.

[0111] In some embodiments, in the case that the time domain resource configuration and the frequency domain resource configuration of the second resource only include part of the parameters of RACH-ConfigCommon, other parameters used to determine the second resource are determined by the time domain resource configuration and / or the frequency domain resource configuration of the first resource.

[0112] In some embodiments, the grouping manner of the RO grouping of the second resource includes at least one of the following:

[0113] a grouping identifier to which each RO of the second resource belongs is configured by a network side device.

[0114] grouping ROs according to a RO mask configured by a network-side device;

[0115] grouping ROs according to a rule predefined by a protocol;

[0116] The rule predefined by the protocol includes any of the following: ROs in a preset time domain range are a group, ROs in a preset frequency domain range are a group, ROs in a preset number range are a group, ROs with even occasion numbers are a group, or ROs with odd occasion numbers are a group.

[0117] In some embodiments, when the first configuration information includes a target SSB index,

[0118] ROs associated with the target SSB index are allowed to be activated or deactivated; and / or

[0119] The terminal determines occasions in the second resource that are allowed to be activated or deactivated according to ROs associated with the target SSB index.

[0120] In some embodiments, when time domain resource configuration and frequency domain resource configuration of the second resource include a RO mask,

[0121] ROs corresponding to the RO mask are allowed to be activated or deactivated; and / or

[0122] The terminal determines occasions in the second resource that are allowed to be activated or deactivated according to the RO mask.

[0123] In some embodiments, preamble configuration of the second resource includes at least one of the following:

[0124] Features associated with preambles of the second resource, and a starting preamble number and a quantity of each feature;

[0125] A starting index and a quantity of target preambles, from which the terminal can determine preambles that can be used in ROs of the second resource.

[0126] In some embodiments, the time domain relative relationship between the second resource and the first resource includes at least one of the following:

[0127] A period of the second resource within a period of the first resource;

[0128] A number of bursts and / or occasions of the second resource within a period of the first resource.

[0129] a ratio value of a period of the second resource to a period of the first resource;

[0130] a time interval between each occasion and / or occasion cluster RO cluster of the second resource;

[0131] a time interval of an occasion of the second resource relative to an occasion of the first resource;

[0132] a time interval of an occasion of the second resource relative to an occasion of the first resource in each time unit;

[0133] a number of occasions and / or clusters of the second resource that can be activated or deactivated in each time unit;

[0134] an offset value between a PRACH configuration index of the second resource relative to a PRACH configuration index of the first resource, wherein the PRACH configuration index applicable to the second resource can be a newly defined or newly added PRACH configuration index in the table of the existing protocol, which is used to configure additional PRACH slots or ROs under certain specific configurations;

[0135] a time offset value of the second resource relative to a first PRACH slot or a last PRACH slot or each PRACH slot or a first RO or a last RO or a first PRACH cluster or each PRACH cluster of the first resource, as shown in FIG. 8, in some embodiments, there is one PRACH slot in each radio frame, and there are multiple PRACH occasions (blue resources, 6 occasions in FIG. 8) in each PRACH slot, the network side device can configure a time offset value timeoffset of the first RACH occasion of the second resource relative to the first resource, then in each radio frame, the UE can find the starting position of the second resource according to the timeoffset, and the number of occasions of each PRACH slot of the second resource can be the same as that of the first resource, or can be independently configured by the first configuration information;

[0136] In FIG. 8, it can also be understood that there is a PRACH cluster of the first resource in each radio frame, and the network side device can configure an offset value of each cluster of the second resource relative to each cluster of the first resource, so as to determine the second resource.

[0137] a number of PRACH slots or ROs or clusters of the second resource relative to the first resource;

[0138] wherein the unit of the period and / or the time interval comprises at least one of the following: radio frame, half frame, subframe, slot, millisecond, PRACH period, PRACH slot, PRACH occasion, PRACH association period, PRACH association pattern period, in embodiments, the number of PRACH slots or ROs of the second resource can be configured independently.

[0139] In some embodiments, the first indication information indicates at least one of the following:

[0140] a PRACH configuration index, when the terminal receives the PRACH configuration index contained in the first indication information, the PRACH time domain configuration previously received in the SIB1 is overridden, and the terminal defaults the remaining parameters unchanged;

[0141] activating or deactivating all of the second resources, the second resources comprising time-frequency resources, preamble sequence resources, etc.

[0142] activating or deactivating part of the second resources;

[0143] an effective duration of the activated or deactivated all or part of the second resources;

[0144] an SSB index associated with the second resources;

[0145] second indication information for turning on or off the discontinuous transmission (DTX) and / or discontinuous reception (DRX) of the cell, the protocol can agree that the second resources are in an activated state during the on duration of the cell DTX / DRX, and the second resources are in a deactivated state during the off duration of the cell DRX / DTX.

[0146] In some embodiments, when the first indication information indicates activating or deactivating part of the second resources, the first indication information further indicates at least one of the following:

[0147] a resource group identity of the activated or deactivated resources in the second resources;

[0148] a subframe number or a slot number, so that the occasion of the target subframe number or the target slot number in each subframe in the second resources is activated or deactivated;

[0149] a frequency domain starting position of a starting occasion in the second resources and a number of occasions in a sequence of frequency domain first and time domain second;

[0150] an indication of a starting occasion in the second resource and a number of occasions contiguous in a frequency domain first and a time domain second order;

[0151] an indication of a starting preamble in the second resource and a number of preambles activated or deactivated;

[0152] a period of the second resource activated in the first resource period;

[0153] a number of the second resource activated in the first resource period;

[0154] a period of the second resource activated in a single time unit;

[0155] a number of the second resource activated in a single time unit.

[0156] In a specific example, the first indication information can indicate at least one of:

[0157] (1) to activate or deactivate part of preambles, an indication of a starting preamble index and a number of contiguous preambles in the first indication information.

[0158] (2) to activate or deactivate all separate ROs.

[0159] (3) to activate or deactivate part of separate ROs, the part of separate ROs determined in the following ways:

[0160] a number of RO groups activated or deactivated;

[0161] a number of RO groups activated or deactivated, the grouping including the following ways: ROs in the same frequency domain as a group; ROs in the same time domain as a group; ROs with even occasion numbers as a group, ROs with odd occasion numbers as a group.

[0162] a target RO mask corresponding to RO activated or deactivated, the target RO mask included in the first indication information to determine separate ROs;

[0163] ROs on a target subframe number activated or deactivated, the ROs on the target subframe number being separate ROs;

[0164] to indicate a frequency domain starting position and contiguous occasions, the separate ROs determined according to the frequency domain starting position and the contiguous occasions;

[0165] to indicate a PRACH configuration index;

[0166] an offset value of a PRACH configuration index of the second resource relative to a PRACH configuration index of the first resource;

[0167] indicates a target subframe number and a target slot number, and the separate RO is determined according to the target subframe number and the target slot number.

[0168] (4) Deactivating or activating part of the preamble of part of the separate RO.

[0169] Wherein, part of the separate RO can be determined by the way mentioned in (3) above, and part of the preamble can be determined by the starting preamble index and the number of consecutive preambles indicated in the first indication information.

[0170] In some embodiments, the first indication information is carried by at least one of the following:

[0171] a paging message;

[0172] a radio resource control (RRC) connection setup message;

[0173] an RRC connection release message;

[0174] downlink control information (DCI);

[0175] a medium access control (MAC) control element (CE);

[0176] a system information block (SIB).

[0177] In some embodiments, the first configuration information is carried by at least one of the following:

[0178] a paging message;

[0179] an RRC connection setup message;

[0180] an RRC connection release message;

[0181] a SIB.

[0182] When the network side device wants to adjust the period of PRACH resource, it can update the RACH configuration (including PRACH configuration index and other parameters) through SIB1, but the update speed of SIB1 is too slow and the sending overhead is large. One way is to reduce the configuration parameters in SIB, and only reconfigure the override parameters (such as only reconfigure the PRACH period parameter) in the updated SIB, to reduce the SIB overhead. Another way is not to update the RACH configuration through SIB message, but through other messages. For example, for idle UE, the network side device can update the RACH configuration by sending paging message, and for connected UE, the network side device can update the RACH configuration through DCI / MAC CE, which only carries the updated PRACH period (PRACH configuration index), or activates a target RACH configuration in multiple RACH configurations, which only needs to indicate the identifier of the target RACH configuration, or configures the first resource and the second resource through the first configuration information, and when the second resource needs to be activated, the first indication information indicates to activate the second resource.

[0183] In some embodiments, when both the first resource and the second resource are configured or indicated by the network side device as valid, the terminal determines the RO for random access in the target PRACH resource according to at least one of the following:

[0184] Indication or configuration of the network side device;

[0185] Number of random access failures, such as if the number of failures on the first resource is too many, the second resource is selected for RACH;

[0186] Time and / or distance of sending PRACH;

[0187] Priority of RO resource, which is indicated or configured in advance by the network side device, or predefined by the protocol, such as once the dynamic RO is configured valid, or once the dynamic RO is activated, the dynamic RO is preferentially selected;

[0188] Service type or QoS of service, the network side device can configure the mapping relationship between service and RO, for example, voice service is mapped to specific RO, when the terminal has voice service, this part of specific RO can be selected;

[0189] Type or capability of the terminal.

[0190] In this embodiment, the terminal can determine the target PRACH resource according to the first configuration information and the first indication information. For example, when the first configuration information configures the specific time-frequency locations of the first resource and the second resource, but the second resource is initially invalid by default, and the first indication information further indicates to activate the second resource, the terminal defaults to preferentially use the second resource, i.e., without considering the first resource; or the terminal can determine the target PRACH resource according to the first configuration information, the first indication information, and the selection of the terminal. For example, when the first configuration information configures the first resource and the second resource, and the first indication information indicates to activate the second resource, it means that the first resource and the second resource are both valid at this time, and the terminal can autonomously select the first resource or the second resource as the target PRACH resource according to some rules.

[0191] In this embodiment, the network side device can configure or indicate the priority of different types of ROs, such as the priority of the legacy RO is higher than that of the separate RO, or the priority of the separate RO is higher than that of the legacy RO. When the network side device configures both the legacy PRACH resource and the PRACH resource that allows dynamic activation or deactivation, if the UE receives the activation indication of the network side device, the UE preferentially selects the dynamic PRACH resource for random access according to the indication of the network side device.

[0192] In some embodiments, when the terminal determines the target PRACH resource according to the indication or configuration of the network side device, the terminal determining the target PRACH resource includes:

[0193] In the case where the network side device configures the second resource, the terminal preferentially selects the second resource as the target PRACH resource; or

[0194] In the case where the network side device configures the second resource and the second resource is initially invalid by default, after receiving the first indication information, the terminal preferentially selects the second resource as the target PRACH resource.

[0195] In some embodiments, the method further includes:

[0196] When the first indication information is not received, the terminal determines the target PRACH resource according to the parameters indicated in the RACH-ConfigCommon or the message MsgA-ConfigCommon.

[0197] The embodiments of the present application also provide a PRACH resource indication method, as shown in FIG. 5, which includes:

[0198] Step 201: The network-side device sends first configuration information and / or first indication information to the terminal, the first configuration information being configuration information of candidate PRACH resources, so that the terminal determines a target PRACH resource in the candidate PRACH resources according to the first configuration information and the first indication information.

[0199] The candidate PRACH resources include PRACH resources of different types, and the PRACH resources of different types at least include a second resource, which is a PRACH resource that can be activated or deactivated.

[0200] In this embodiment, the network-side device can first configure fewer PRACH resources for power saving, and when there are more random access requests or more terminals, the second resource is activated to alleviate the random access collision probability, so that network energy saving and activation or deactivation of PRACH resources can be achieved.

[0201] In some embodiments, the network-side device determines whether to send the first indication information according to at least one of the following:

[0202] The degree of random access collision of the terminal;

[0203] The number of terminals supporting sending of an uplink wake-up signal (WUS);

[0204] The number of idle-state terminals;

[0205] Information reported by the idle-state terminals.

[0206] In this embodiment, when the degree of random access collision of the terminal is high, such as greater than a set first threshold, the first indication information can be sent to indicate activation of the second resource to reduce the degree of random access collision of the terminal; when the degree of random access collision of the terminal is low, such as less than a set second threshold, the first indication information can be sent to indicate deactivation of the second resource to achieve network energy saving. When the number of terminals supporting sending of an uplink wake-up signal (WUS) is large, such as greater than a set third threshold, the first indication information can be sent to indicate activation of the second resource to avoid insufficient RACH resources; when the number of terminals supporting sending of an uplink wake-up signal (WUS) is small, such as less than a set fourth threshold, the first indication information can be sent to indicate deactivation of the second resource to achieve network energy saving. When the number of idle-state terminals is large, such as greater than a set fifth threshold, the first indication information can be sent to indicate activation of the second resource to avoid insufficient RACH resources; when the number of idle-state terminals is small, such as less than a set sixth threshold, the first indication information can be sent to indicate deactivation of the second resource to achieve network energy saving.

[0207] In some embodiments, the degree of random access collision of the terminal is determined according to at least one of the following:

[0208] a percentage of preambles used;

[0209] a number or a percentage of messages MSG3 with different terminal identifications, for example, whether more than 1 UE always sends MSG3.

[0210] In some embodiments, the information reported by the idle-state terminal includes at least one of the following:

[0211] a number of times of Msg1 repetition;

[0212] a number of times of Msg1 power boosting;

[0213] a value of Msg1 power boosting;

[0214] feedback information carried in MSG3 after access success.

[0215] Specifically, when the number of times of Msg1 repetition is large, or the number of times of Msg1 power boosting is large, or the value of Msg1 power boosting is large, it is determined that access is difficult, and the first indication information can be sent to indicate that the second resource is activated to avoid insufficient RACH resources; when the number of times of Msg1 repetition is small, or the number of times of Msg1 power boosting is small, or the value of Msg1 power boosting is small, the first indication information can be sent to indicate that the second resource is deactivated to achieve network energy saving.

[0216] In some embodiments, the candidate PRACH resource further includes a first resource, and the first resource and / or the second resource satisfies at least one of the following:

[0217] the first resource and the second resource are numbered together and mapped with synchronization signal blocks SSBs;

[0218] the mapping relationship of SSBs and random access occasions ROs of the first resource and the second resource is the same or different;

[0219] preamble sequence configurations of the first resource and the second resource are the same or different;

[0220] the priorities of the first resource and the second resource are different;

[0221] the time-frequency positions of the first resource and the second resource completely overlap, completely do not overlap, or partially overlap;

[0222] the service types of services associated with the first resource and the second resource are different;

[0223] The first resource and the second resource are associated with services of different quality of service (QoS);

[0224] The first resource and the second resource are associated with different terminal types.

[0225] The first resource is a PRACH resource that is not allowed to be activated or deactivated.

[0226] In this embodiment, the first resource can be understood as a legacy PRACH resource, the first resource is a PRACH resource that is not allowed to be activated or deactivated by indication information or configuration information, and is a resource configured by RACH-ConfigCommon included in Bandwidth Part Uplink Common (BWP-UplinkCommon), and the second resource is an RO resource that satisfies at least one of the following conditions:

[0227] a resource independent of the first resource;

[0228] a resource allowed to be activated or deactivated by a network side device;

[0229] a resource with a mapping manner different from the first resource, the mapping manner including mapping of SSB and RO and mapping between preamble and SSB;

[0230] a resource configured by additional RACH-ConfigCommon.

[0231] The second resource can be referred to as an additional PRACH resource, a separate PRACH resource, or a dynamic PRACH resource. In this embodiment, the network side device can first configure fewer PRACH resources for power saving, and when there are more random access requests or more terminals, the second resource is activated to alleviate the random access collision probability, which can achieve network energy saving and solve the problem of insufficient RACH resources.

[0232] The mapping relationship between the separate RO and the SSB includes the following modes:

[0233] (1) The separate RO is a time-frequency resource that does not coincide with the legacy RO at all.

[0234] When the separate RO is activated, the legacy RO is invalid; or when the separate RO is activated, the legacy RO is still valid.

[0235] The mapping relationship between separate RO and SSB refers to ssb-perRACH-OccasionAndCB-PreamblesPerSSB of legacy RO. As shown in FIG. 6, the mapping relationship between dynamic RO and SSB and the mapping relationship between legacy RO and SSB are the same, including the same number of SSBs mapped per RO, the same SSBs associated with dynamic RO and legacy RO, and the same number of preambles associated with each SSB.

[0236] (2) The mapping relationship between separate RO and SSB refers to new ssb-perRACH-OccasionAndCB-PreamblesPerSSB. The new ssb-perRACH-OccasionAndCB-PreamblesPerSSB is indicated by a network side device or configured in advance, and can only configure new SSB per RO (mapping relationship between SSB and RO) or only configure new number of preambles per SSB (preamble configuration). As shown in FIG. 7, the mapping relationship between separate RO and SSB is different from the mapping relationship between legacy RO and SSB. In the legacy RO, SSB per RO = 2, and in the dynamic RO, SSB per RO = 1.

[0237] In addition to the different mapping relationship between RO and SSB, the mapping relationship (configuration) between preamble and SSB can also be different. For example, in the legacy RO, 20 preambles are associated with each SSB, and each SSB can be configured with multiple preambles of different features. In the dynamic RO, 10 preambles can be associated with each SSB, and each SSB can be configured with multiple preambles of different features.

[0238] In order to alleviate the RACH collision pressure, the network side device can dynamically activate or deactivate separate RO. In order to let the UE preferentially select separate RO for random access, the network side device can configure RO priority for separate RO and legacy RO, and the UE selects the RO for random access according to the priority. Alternatively, for the UE, only the preamble of the NES feature is configured on the separate RO, and the UE supporting the NES can only perform random access on the separate RO.

[0239] In some embodiments, the mapping relationship of SSBs to ROs of the first resource and the second resource is the same, including at least one of the following:

[0240] the number and / or the index of SSBs mapped to the first resource is the same as the number and / or the index of SSBs mapped to the second resource;

[0241] the number of SSBs associated with each time slot on the first resource is the same as the number of SSBs associated with each time slot on the second resource.

[0242] In some embodiments, the mapping relationship of SSBs to ROs of the first resource and the second resource is different, including at least one of the following:

[0243] the number and / or the index of SSBs mapped to the first resource is different from the number and / or the index of SSBs mapped to the second resource;

[0244] the number of SSBs associated with each time slot on the first resource is different from the number of SSBs associated with each time slot on the second resource.

[0245] In this embodiment, the SSB indexes associated with the first resource and the second resource can be different. For example, if the network device finds that there are many UEs in some directions, it can increase the RACH opportunities in these SSB directions by activating the second resource through the first indication information, and the SSB indexes associated with the second resource can also be indicated by the first indication information. Assuming that there are 8 candidate SSBs, the ssb-PositionsInBurst (bitmap 11111111) indicated by ServingCellConfigCommon corresponds to the SSBs associated with the first resource, so the first resource is associated with 8 SSBs, and the mapping relationship of SSBs to ROs and the mapping relationship of preambles to SSBs of the first resource and the second resource are the same. The network device indicates the first indication information, which contains ssb-PositionsInBurst = bitmap 11110000. The ssb-PositionsInBurst indicated by the first indication information is the SSB index associated with the second resource, and the second resource can confirm that it is only associated with the first four SSBs according to the first indication information.

[0246] In some embodiments, the preamble configurations of the first resource and the second resource are different, for example, a UE supporting PRACH adaptation is associated with a NES feature, and the preamble associated with the NES feature is only associated with the second resource (separate RO), and the UE receiving the indication from the network device can preferentially select the preamble associated with the NES feature on the second resource to initiate random access; or, the preamble configurations of the first resource and the second resource are different, for example, a UE supporting PRACH adaptation is associated with a NES feature, and the preamble associated with the NES feature can be associated with the first resource and the second resource (separate RO), and the UE receiving the indication from the network device can preferentially select the preamble associated with the NES feature on the second resource to initiate random access.

[0247] In some embodiments, the first configuration information comprises at least one of the following:

[0248] time domain resource configuration, frequency domain resource configuration, and preamble sequence configuration of the first resource;

[0249] time domain resource configuration and frequency domain resource configuration of the second resource;

[0250] preamble configuration of the second resource;

[0251] SSB index associated with the second resource, which can be indicated by configuring ssb-PositionsInBurst in the second resource configuration, the length of the bitmap used for indication is based on the number of all possible candidate SSBs, or based on the SSBs indicated by the ssb-PositionsInBurst corresponding to the first resource, and further indicating which SSBs are associated with the second resource based on the SSBs indicated by the ssb-PositionsInBurst corresponding to the first resource;

[0252] time domain relative relationship between the second resource and the first resource.

[0253] In some embodiments, the time domain resource configuration and the frequency domain resource configuration of the second resource comprise at least one of the following:

[0254] all parameters of random access channel common configuration RACH-ConfigCommon;

[0255] part of the parameters of RACH-ConfigCommon.

[0256] The second resource allows the RO grouping information to be activated or deactivated;

[0257] Target SSB index;

[0258] RO mask.

[0259] In some embodiments, in the case that the time domain resource configuration and the frequency domain resource configuration of the second resource only include part of the parameters of RACH-ConfigCommon, other parameters for determining the second resource are determined by the time domain resource configuration and / or the frequency domain resource configuration of the first resource.

[0260] In some embodiments, the grouping manner of the RO grouping of the second resource includes at least one of the following:

[0261] The grouping identity to which each RO of the RO of the second resource belongs is configured by the network side device;

[0262] The RO grouping is according to the RO mask configured by the network side device;

[0263] Grouping according to a protocol predefined rule;

[0264] The protocol predefined rule includes any one of the following: ROs in a preset time domain range are a group, ROs in a preset frequency domain range are a group, ROs in a preset number range are a group, ROs with even occasion numbers are a group, or ROs with odd occasion numbers are a group.

[0265] In some embodiments, when the first configuration information includes a target SSB index,

[0266] The RO associated with the target SSB index allows to be activated or deactivated; and / or

[0267] The terminal determines the occasions in the second resource that allow to be activated or deactivated according to the RO associated with the target SSB index.

[0268] In some embodiments, when the time domain resource configuration and the frequency domain resource configuration of the second resource include an RO mask,

[0269] The RO corresponding to the RO mask allows to be activated or deactivated; and / or

[0270] The terminal determines the occasions in the second resource that allow to be activated or deactivated according to the RO mask.

[0271] In some embodiments, the preamble configuration of the second resource comprises at least one of:

[0272] a feature of preamble association of the second resource and a starting preamble index and a number of each of the features;

[0273] a starting index and a number of the target preambles.

[0274] In some embodiments, the time-domain relative relationship of the second resource to the first resource comprises at least one of:

[0275] a period of the second resource within a period of the first resource;

[0276] a number of bursts and / or occasions of the second resource within a period of the first resource;

[0277] a ratio value of a period of the second resource to a period of the first resource;

[0278] a time interval between each occasion and / or RO cluster of the second resource;

[0279] a time interval of an occasion of the second resource relative to an occasion of the first resource;

[0280] a time interval of an occasion of the second resource relative to an occasion of the first resource within each time unit;

[0281] a number of occasions and / or clusters of the second resource that are allowed to be activated or deactivated within each time unit;

[0282] an offset value between a PRACH configuration index of the second resource and a PRACH configuration index of the first resource, wherein the PRACH configuration index applicable to the second resource can be a newly defined or newly added PRACH configuration index in the table of the existing protocol, which is used to configure additional PRACH slots or ROs under certain specific configurations;

[0283] The second resource has a time offset value relative to the first resource, which is the first PRACH slot or the last PRACH slot or each PRACH slot or the first RO or the last RO or the first PRACH cluster or each PRACH cluster of the first resource, as shown in FIG. 8. In some embodiments, each radio frame has a PRACH slot, and each PRACH slot has multiple PRACH occasions (blue resources, 6 occasions in FIG. 8). The network side device can configure a time offset value timeoffset of the second resource relative to the first resource. Then, in each radio frame, the UE can find the starting position of the second resource according to the timeoffset. The number of occasions of each PRACH slot of the second resource can be the same as that of the first resource, or can be independently configured by the first configuration information.

[0284] In FIG. 8, it can also be understood that each radio frame has a PRACH cluster of the first resource. The network side device can configure an offset value of each cluster of the second resource relative to each cluster of the first resource to determine the second resource.

[0285] The second resource has a number of PRACH slots or ROs or clusters relative to the first resource.

[0286] The period and / or the time interval include at least one of the following: radio frame, half frame, subframe, slot, millisecond, PRACH period, PRACH slot, PRACH occasion, PRACH association period, PRACH association pattern period.

[0287] In some embodiments, the first indication information indicates at least one of the following:

[0288] PRACH configuration index;

[0289] Activate or deactivate all the second resources;

[0290] Activate or deactivate part of the second resources;

[0291] The effective duration of all or part of the second resources activated or deactivated;

[0292] The SSB index associated with the second resource;

[0293] The second indication information is used to open or close the discontinuous transmission and / or discontinuous reception of the cell. The protocol can agree that the second resource is in the active state during the cell DTX / DRX duration, and the second resource is in the deactivation state during the cell DTX / DRX OFF.

[0294] In some embodiments, when the first indication information indicates to activate or deactivate part of the second resource, the first indication information further indicates at least one of the following:

[0295] The identification of the activated or deactivated resource group in the second resource;

[0296] The subframe number or the time slot number, so that in the second resource, the occasion of the target subframe number or the target time slot number in each subframe is activated or deactivated;

[0297] The frequency domain starting position of the starting occasion in the second resource and the number of occasions that are continuous in the order of frequency domain first and time domain second;

[0298] The identification of the starting occasion in the second resource and the number of occasions that are continuous in the order of frequency domain first and time domain second;

[0299] The identification of the starting preamble in the second resource and the number of preambles that are activated or deactivated;

[0300] The period of the activated second resource within the first resource period;

[0301] The number of activated second resources within the first resource period;

[0302] The period of the activated second resource within a single time unit;

[0303] The number of activated second resources within a single time unit.

[0304] In a specific example, the first indication information can indicate at least one of the following:

[0305] (1) Deactivate or activate part of the preamble. In the first indication information, the starting preamble index and the number of continuous preambles are indicated.

[0306] (2) Deactivate or activate all separate ROs.

[0307] (3) Deactivate or activate part of the separate RO. The part of the separate RO is determined in the following ways:

[0308] The number of RO groups to be activated or deactivated;

[0309] The number of RO groups to be activated or deactivated, and the grouping manner includes the following manners: ROs with the same frequency domain are grouped as one group; ROs with the same time domain are grouped as one group; ROs with even occasion numbers are grouped as one group; and ROs with odd occasion numbers are grouped as one group.

[0310] ROs corresponding to a target RO mask are activated or deactivated, and the target RO mask is used to determine separate ROs in the first indication information;

[0311] ROs on a target subframe number are activated or deactivated, and the ROs on the target subframe number are separate ROs;

[0312] A frequency domain starting position and consecutive occasions are indicated, and separate ROs are determined according to the frequency domain starting position and the consecutive occasions;

[0313] A PRACH configuration index is indicated;

[0314] An offset value of a PRACH configuration index of a second resource relative to a PRACH configuration index of a first resource is indicated;

[0315] A target subframe number and a time slot number are indicated, and separate ROs are determined according to the target subframe number and the time slot number.

[0316] (4) Partial preambles of part of separate ROs are deactivated or activated.

[0317] Part of separate ROs can be determined by the manner mentioned in (3) above, and part of preambles can be determined by a starting preamble index and a number of consecutive preambles indicated in the first indication information.

[0318] In some embodiments, the first indication information is carried by at least one of the following:

[0319] A paging message;

[0320] A radio resource control (RRC) connection establishment message;

[0321] An RRC connection release message;

[0322] Downlink control information (DCI);

[0323] A medium access control control element (MAC CE);

[0324] System information block, SIB.

[0325] In some embodiments, the first configuration information is carried by at least one of the following:

[0326] A paging message;

[0327] An RRC connection setup message;

[0328] An RRC connection release message;

[0329] A SIB.

[0330] In a specific embodiment, the PRACH resource is adapted, and the dynamically adjusted resource (second resource and / or separate RO and / or dynamic RO) is not allowed to coincide with the legacy RO, and the frequency domain starting position and frequency domain length of the dynamically adjusted resource are the same as the frequency domain starting position and frequency domain length of the legacy RO. As shown in FIG. 9, the blue color represents the RACH resource of the legacy, and the red color represents the RACH resource that can be dynamically activated or deactivated (applicable to the UE), which can be named as separate PRACH resource or dynamic PRACH resource.

[0331] In a specific embodiment, the PRACH resource is adapted, and the dynamically adjusted resource (second resource and / or separate RO and / or dynamic RO) is not allowed to coincide with the legacy RO, and the frequency domain starting position and frequency domain length of the dynamically adjusted resource are the same as the frequency domain starting position and frequency domain length of the legacy RO. As shown in FIG. 9, the blue color represents the RACH resource of the legacy, and the red color represents the RACH resource that can be dynamically activated or deactivated (applicable to the UE), which can be named as separate PRACH resource or dynamic PRACH resource.

[0332] Configuration mode (1): configuration mode without RA partition.

[0333] The rach-ConfigCommonForNES is configured in the bandwidth part uplink common configuration (BWP-UplinkCommon), including the following modes:

[0334] Mode 1: rach-ConfigCommonForNES can be a complete set of time-frequency resource configuration of RACH, including all the parameters contained in rach-ConfigCommon in the existing protocol;

[0335] Mode 2: rach-ConfigCommonForNES can only indicate part of the parameters, such as indicating at least one of the following:

[0336] In a single legacy PRACH resource period (x), the period (y) of the PRACH resource allowed to be dynamically activated (red);

[0337] The number of clusters of PRACH resources (such as 3 clusters in Figure 9) or the number of occasions (such as 6 occasions per cluster in the figure) that are allowed to be dynamically activated within a single legacy PRACH resource period (x);

[0338] The period of the PRACH resources allowed to be dynamically activated is 1 / Q (i.e. a period ratio) of a single legacy PRACH resource period (x), such as in Figure 9, x = 4, 1 / Q = 1 / 4;

[0339] The time interval (y) between the multiple PRACH resources (red) allowed to be dynamically activated;

[0340] The time interval (z) of the first PRACH resource allowed to be dynamically activated relative to the first legacy PRACH resource within each period, and the number of PRACH resources and / or PRACH occasions allowed to be dynamically activated.

[0341] The above-mentioned mode 2 can reduce the configured parameters, and can save the configuration overhead of SIB1. The unit of the above-mentioned period includes: system frame, subframe, ms, slot, symbol, etc.

[0342] Among them, the resources configured by rach-ConfigCommonForNES are not activated by default, and are activated by the network side device later; or are activated by default, and can be deactivated by the network side device later.

[0343] Configuration mode (2): follow the configuration mode of RA partition, configure rach-ConfigCommonForNES in additionalRACH-ConfigCommonList.

[0344] Mode one: rach-ConfigCommonForNES can be a complete set of rach-ConfigCommon parameters, including the time and frequency resource configuration parameters already in the current protocol, such as PRACH configuration index, etc.

[0345] Mode two: rach-ConfigCommonForNES can also only indicate part of the parameters, such as indicating at least one of the following:

[0346] The period (y) of the PRACH resources (red) allowed to be dynamically activated within a single legacy PRACH resource period (x);

[0347] The number of PRACH resources (e.g., 3 in FIG. 9) allowed to be dynamically activated within a single legacy PRACH resource period (x);

[0348] Once activated, the valid time of the PRACH resource (second resource) dynamically activated is P system frames or subframes or ms or slots;

[0349] The period of the candidate PRACH resource allowed to be dynamically activated is 1 / Q (i.e., a period ratio) of a single legacy PRACH resource period (x), such as in FIG. 9, x = 4, 1 / Q = 1 / 4;

[0350] The time interval (y) between the multiple PRACH resources (red) allowed to be dynamically activated;

[0351] The time interval (z) of the first PRACH resource allowed to be dynamically activated relative to the first legacy PRACH resource and the number of PRACH resources allowed to be dynamically activated within each period;

[0352] The above-mentioned mode two can reduce the configured parameters, and can save the configuration overhead of SIB1.

[0353] Among them, the resource configured by rach-ConfigCommonForNES is not activated by default, and is activated by the network side device subsequently; or is activated by default, and is deactivated by the network side device subsequently.

[0354] The network side device can configure the resource through RRC or SIB. The network side device can indicate to activate or deactivate the dynamic PRACH resource configuration through paging messages, SIB, RRC release / RRC setup, DCI / MAC CE, etc.

[0355] The content indicated by the network side device can include at least one of the following:

[0356] Activate the dynamic PRACH resource;

[0357] Deactivate the dynamic PRACH resource;

[0358] PRACH configuration Index (i.e., directly indicate the new PRACH period);

[0359] Within a single legacy PRACH resource period (x), the period (y) of the PRACH resource (red) allowed to be dynamically activated;

[0360] The number of candidate PRACH resources (e.g. 3 in FIG. 9) that are dynamically activated within a single legacy PRACH resource period (x);

[0361] The period (y) of the PRACH resources (red) that are dynamically activated within a single radio frame;

[0362] The number of candidate PRACH resources that are dynamically activated within a single radio frame;

[0363] The time interval (y) between the multiple PRACH resources (red) that are dynamically activated.

[0364] When the UE receives the activation indication from the network side device, the UE can apply the parameters of rach-ConfigCommonForNES to determine the RACH resources, and for the parameters that are not configured, the UE applies the corresponding parameters indicated in RACH-ConfigCommon or MsgA-ConfigCommon.

[0365] In another specific embodiment, the PRACH resources that are dynamically adjusted are not allowed to coincide with the legacy ROs, and the frequency domain starting position and length of the dynamically adjusted resources are different from the frequency domain starting position and length of the legacy ROs, as shown in FIG. 10, where the blue color represents the RACH resources of the legacy, and the red color represents the RACH resources that can be dynamically activated or deactivated, which can be named as separate PRACH resources or dynamic PRACH resources.

[0366] The configuration mode of the PRACH resources that are allowed to be dynamically activated includes at least one of the following:

[0367] Configuration mode (1): not following the configuration mode of RApartition,

[0368] rach-ConfigCommonForNES is configured within BWP-UplinkCommon, including the following modes:

[0369] Mode 1: rach-ConfigCommonForNES can be a complete set of time-frequency resource configuration of RACH, including all the parameters contained in rach-ConfigCommon in the existing protocol;

[0370] Mode 2: rach-ConfigCommonForNES can only indicate part of the parameters, such as indicating at least one of the following:

[0371] The frequency domain starting position msg1-FrequencyStart;

[0372] Number of frequency domain PRACH occasions msg1-FDM;

[0373] The offset between the PRACH configuration index corresponding to the PRACH resource allowed to be dynamically activated and the PRACH configuration index corresponding to the legacy PRACH resource, in this way, bits can be saved;

[0374] The ratio or relative value of the period of the PRACH resource allowed to be dynamically activated and the period of the legacy PRACH resource, for example, only the frequency domain starting position and the frequency domain length occupied by the dynamically activated PRACH resource period configured as 1 / 4 of the blue resource can confirm the position of the PRACH allowed to be dynamically activated; the remaining parameters, such as the number of RACH slots contained in each subframe or the number of RACH occasions contained in one RACH slot, all refer to the configuration of the legacy RACH resource.

[0375] Among them, the resource configured by rach-ConfigCommonForNES is not activated by default, and is activated by the network side device later; or it is activated by default, and is deactivated by the network side device later.

[0376] Configuration method (2): follow the configuration method of RA partition, configure rach-ConfigCommonForNES in additionalRACH-ConfigCommonList.

[0377] Method one: rach-ConfigCommonForNES can be a complete set of rach-ConfigCommon parameters, including the time and frequency resource configuration parameters already in the current protocol, such as PRACH configuration index, etc.

[0378] Method two: rach-ConfigCommonForNES can also indicate only part of the parameters, such as indicating at least one of the following:

[0379] Frequency domain starting position msg1-FrequencyStart;

[0380] The ratio or relative value of the period of the PRACH resource allowed to be dynamically activated and the period of the legacy PRACH resource;

[0381] Whether the time domain position of the PRACH resource allowed to be dynamically activated is the same as the time domain position of the legacy PRACH resource.

[0382] wherein the resource configured by the rach-ConfigCommonForNES is activated by default and then activated by the network side device, or is deactivated by default and then deactivated by the network side device.

[0383] In a specific embodiment, as shown in FIG. 10, the network side device configures the first resource and the second resource in the first configuration information, wherein the first resource has one PRACH cluster in each radio frame, and each PRACH cluster has 6 PRACH occasions, and when configuring the time-frequency resource of the second resource, only the frequency domain starting position of the second resource, the number of clusters of the second resource in each radio frame relative to the clusters of the first resource, and the interval between each cluster of the second resource need to be configured.

[0384] The PRACH resource indication method provided in the embodiments of the present application can be executed by a PRACH resource indication device. In the embodiments of the present application, the PRACH resource indication method executed by the PRACH resource indication device is taken as an example to illustrate the PRACH resource indication device provided in the embodiments of the present application.

[0385] Please refer to FIG. 11, which is a structural schematic diagram of a PRACH resource indication device provided in the embodiments of the present application. The device is applied to a terminal 3, as shown in FIG. 11, the PRACH resource indication device includes:

[0386] A receiving module 31, configured to receive first configuration information and first indication information of a network side device, wherein the first configuration information is configuration information of candidate PRACH resources;

[0387] A processing module 32, configured to determine a target PRACH resource from the candidate PRACH resources according to the first configuration information and the first indication information;

[0388] wherein the candidate PRACH resources include PRACH resources of different types, and the PRACH resources of different types at least include a second resource, and the second resource is a PRACH resource that can be activated or deactivated.

[0389] In some embodiments, the candidate PRACH resources further include a first resource, and the first resource and / or the second resource satisfy at least one of the following conditions:

[0390] The first resource and the second resource are numbered together and mapped with synchronization signal blocks (SSBs);

[0391] The mapping relationship of the SSBs of the first resource and the second resource with random access occasions (ROs) is the same or different;

[0392] The preamble sequence configurations of the first resource and the second resource are the same or different;

[0393] The priorities of the first resource and the second resource are different;

[0394] The time-frequency locations of the first resource and the second resource completely overlap, completely do not overlap, or partially overlap;

[0395] The service types of the services associated with the first resource and the second resource are different;

[0396] The quality of services (QoSs) of the services associated with the first resource and the second resource are different;

[0397] The terminal types associated with the first resource and the second resource are different;

[0398] The first resource is a PRACH resource that is not allowed to be activated or deactivated.

[0399] In some embodiments, the mapping relationship of SSBs and ROs of the first resource and the second resource is the same, including at least one of the following:

[0400] The number and / or index of SSBs mapped to the first resource are the same as the number and / or index of SSBs mapped to the second resource;

[0401] The number of SSBs associated with each time slot on the first resource is the same as the number of SSBs associated with each time slot on the second resource.

[0402] In some embodiments, the mapping relationship of SSBs and ROs of the first resource and the second resource is different, including at least one of the following:

[0403] The number and / or index of SSBs mapped to the first resource are different from the number and / or index of SSBs mapped to the second resource;

[0404] The number of SSBs associated with each time slot on the first resource is different from the number of SSBs associated with each time slot on the second resource.

[0405] In some embodiments, the first configuration information includes at least one of the following:

[0406] The time domain resource configuration, the frequency domain resource configuration, and the preamble sequence configuration of the first resource;

[0407] The time domain resource configuration and the frequency domain resource configuration of the second resource;

[0408] The preamble configuration of the second resource;

[0409] an SSB index index associated with the second resource;

[0410] a time domain relative relationship between the second resource and the first resource.

[0411] In some embodiments, the time domain resource configuration and the frequency domain resource configuration of the second resource comprise at least one of:

[0412] all parameters of a random access channel common configuration RACH-ConfigCommon;

[0413] part of parameters of the RACH-ConfigCommon;

[0414] RO grouping information of the second resource allowing being activated or deactivated;

[0415] a target SSB index;

[0416] an RO mask.

[0417] In some embodiments, in a case where the time domain resource configuration and the frequency domain resource configuration of the second resource only comprise part of parameters of the RACH-ConfigCommon, other parameters for determining the second resource are determined by the time domain resource configuration and / or the frequency domain resource configuration of the first resource.

[0418] In some embodiments, the grouping manner of the RO grouping of the second resource comprises at least one of:

[0419] a grouping identifier to which each RO of the RO of the second resource belongs is configured by a network side device;

[0420] the RO grouping is according to an RO mask configured by the network side device;

[0421] grouping according to a protocol predefined rule;

[0422] The protocol predefined rule comprises any one of: ROs in a preset time domain range are a group, ROs in a preset frequency domain range are a group, ROs in a preset number range are a group, ROs with even occasion numbers are a group, or ROs with odd occasion numbers are a group.

[0423] In some embodiments, in a case where the first configuration information comprises a target SSB index,

[0424] the RO associated with the target SSB index allows being activated or deactivated; and / or

[0425] The processing module 32 determines the occasion allowed to be activated or deactivated in the second resource according to the RO associated with the target SSB index.

[0426] In some embodiments, when the time domain resource configuration and the frequency domain resource configuration of the second resource comprise a RO mask,

[0427] The RO corresponding to the RO mask is allowed to be activated or deactivated; and / or

[0428] The processing module 32 determines the occasion allowed to be activated or deactivated in the second resource according to the RO mask.

[0429] In some embodiments, the preamble configuration of the second resource comprises at least one of the following:

[0430] The feature associated with the preamble of the second resource and the starting preamble number and the number of each feature;

[0431] The starting index and the number of the target preamble.

[0432] In some embodiments, the time domain relative relationship between the second resource and the first resource comprises at least one of the following:

[0433] The number of the cycle of the second resource within the cycle of the first resource;

[0434] The number of the burst and / or the occasion of the second resource within the cycle of the first resource;

[0435] The ratio value of the cycle of the second resource to the cycle of the first resource;

[0436] The time interval between each occasion and / or the RO cluster of the second resource;

[0437] The time interval of the occasion of the second resource relative to the occasion of the first resource;

[0438] The time interval of the occasion of the second resource relative to the occasion of the first resource in each time unit;

[0439] The number of the occasion and / or the cluster allowed to be activated or deactivated in each time unit;

[0440] The offset value between the PRACH configuration index of the second resource and the PRACH configuration index of the first resource;

[0441] a time offset value of a first PRACH slot or a last PRACH slot or each PRACH slot or a first RO or a last RO or a first PRACH cluster or each PRACH cluster of the second resource relative to the first resource;

[0442] a number of PRACH slots or ROs or clusters of the second resource relative to the first resource;

[0443] wherein the period and / or the time interval comprises at least one of: radio frame, half frame, subframe, slot, millisecond, PRACH period, PRACH slot, PRACH occasion, PRACH association period, PRACH association pattern period.

[0444] In some embodiments, the first indication information indicates at least one of:

[0445] PRACH configuration index;

[0446] activating or deactivating all of the second resources;

[0447] activating or deactivating part of the second resources;

[0448] a valid time length of the activated or deactivated all or part of the second resources;

[0449] an SSB index associated with the second resources;

[0450] second indication information of turning on or off discontinuous transmission and / or discontinuous reception of a cell.

[0451] In some embodiments, when the first indication information indicates activating or deactivating part of the second resources, the first indication information further indicates at least one of:

[0452] an activated or deactivated resource group identification in the second resources;

[0453] subframe number or slot number;

[0454] a frequency domain starting position of a starting occasion in the second resources and a number of occasions continuous in a sequence of frequency domain first and time domain second;

[0455] an identification of a starting occasion in the second resources and a number of occasions continuous in a sequence of frequency domain first and time domain second;

[0456] an identification of a starting preamble in the second resources and a number of activated or deactivated preambles;

[0457] a period of the second resources in the first resource period;

[0458] a number of the second resources activated in the first resource period;

[0459] a period of the second resources activated in a single time unit;

[0460] a number of the second resources activated in a single time unit.

[0461] In some embodiments, the first indication information is carried by at least one of the following:

[0462] a paging message;

[0463] a radio resource control (RRC) connection setup message;

[0464] an RRC connection release message;

[0465] downlink control information (DCI);

[0466] a medium access control (MAC) control element (CE);

[0467] a system information block (SIB).

[0468] In some embodiments, the first configuration information is carried by at least one of the following:

[0469] a paging message;

[0470] an RRC connection setup message;

[0471] an RRC connection release message;

[0472] a SIB.

[0473] In some embodiments, when both the first resource and the second resource are configured or indicated by a network-side device as valid, the processing module 32 determines the RO for random access in the target PRACH resource according to at least one of the following:

[0474] an indication or configuration of the network-side device;

[0475] a number of random access failures;

[0476] a time and / or a distance closest to sending the PRACH;

[0477] a priority of the RO resource;

[0478] a service type or a QoS of the service;

[0479] a type or a capability of the terminal.

[0480] In some embodiments, when the terminal determines the target PRACH resource according to the indication or configuration of the network side device, the processing module 32 preferentially selects the second resource as the target PRACH resource in the case that the network side device configures the second resource.

[0481] In the case that the network side device configures the second resource and the second resource is initially invalid by default, the processing module 32 preferentially selects the second resource as the target PRACH resource after receiving the first indication information.

[0482] In some embodiments, the second resource is an RO resource satisfying at least one of the following conditions:

[0483] a resource independent of the first resource;

[0484] a resource allowed to be activated or deactivated by the network side device;

[0485] a resource having a mapping mode different from that of the first resource, the mapping mode including the mapping between SSB and RO and the mapping between preamble and SSB;

[0486] a resource configured by an additional RACH-ConfigCommon.

[0487] In some embodiments, when the first indication information is not received, the processing module 32 determines the target PRACH resource according to the parameters indicated in the RACH-ConfigCommon or the message MsgA-ConfigCommon.

[0488] Embodiments of the present application also provide a PRACH resource indication device, as shown in FIG. 12, applied to a network side device 4, comprising:

[0489] a sending module 41 configured to send first configuration information and / or first indication information to a terminal, the first configuration information being configuration information of candidate PRACH resources, so that the terminal determines a target PRACH resource in the candidate PRACH resources according to the first configuration information and the first indication information;

[0490] wherein the candidate PRACH resources include PRACH resources of different types, and the PRACH resources of different types at least include a second resource, the second resource being a PRACH resource allowed to be activated or deactivated.

[0491] In some embodiments, the sending module 41 is specifically configured to determine whether to send the first indication information according to at least one of the following conditions:

[0492] the degree of random access collision of the terminal;

[0493] a number of terminals supporting sending an uplink wake-up signal (WUS);

[0494] a number of idle-state terminals;

[0495] information reported by the idle-state terminals.

[0496] In some embodiments, the random access collision degree of the terminals is determined according to at least one of the following:

[0497] a percentage of random access preambles used;

[0498] a number or a percentage of messages (MSG3) with different terminal identities.

[0499] In some embodiments, the information reported by the idle-state terminals includes at least one of the following:

[0500] a number of times of repeating sending Msg1;

[0501] a number of times of power boosting of Msg1;

[0502] a power boosting value of Msg1;

[0503] feedback information carried in MSG3 after access success.

[0504] In some embodiments, the candidate PRACH resource further includes a first resource, and the first resource and / or the second resource satisfy at least one of the following:

[0505] the first resource and the second resource are numbered together and mapped with a synchronization signal block (SSB);

[0506] SSBs of the first resource and the second resource have a same or different mapping relationship with a random access occasion (RO);

[0507] preamble sequence configurations of the first resource and the second resource are the same or different;

[0508] the first resource and the second resource have different priorities;

[0509] time-frequency positions of the first resource and the second resource completely overlap, completely do not overlap, or partially overlap;

[0510] service types of services associated with the first resource and the second resource are different;

[0511] quality of services (QoSs) of services associated with the first resource and the second resource are different;

[0512] terminal types associated with the first resource and the second resource are different;

[0513] The first resource is a PRACH resource that is not allowed to be activated or deactivated.

[0514] In some embodiments, the first resource and the second resource have a same mapping relationship between SSBs and ROs includes at least one of:

[0515] a same number and / or index of SSBs mapped to the first resource and a same number and / or index of SSBs mapped to the second resource;

[0516] a same number of SSBs associated with each time occasion on the first resource and a same number of SSBs associated with each time occasion on the second resource.

[0517] In some embodiments, the first resource and the second resource have a different mapping relationship between SSBs and ROs includes at least one of:

[0518] a different number and / or index of SSBs mapped to the first resource and a different number and / or index of SSBs mapped to the second resource;

[0519] a different number of SSBs associated with each time occasion on the first resource and a different number of SSBs associated with each time occasion on the second resource.

[0520] In some embodiments, the first configuration information includes at least one of:

[0521] a time domain resource configuration, a frequency domain resource configuration, and a preamble sequence configuration of the first resource;

[0522] a time domain resource configuration and a frequency domain resource configuration of the second resource;

[0523] a preamble configuration of the second resource;

[0524] an SSB index associated with the second resource;

[0525] a time domain relative relationship between the second resource and the first resource.

[0526] In some embodiments, the time domain resource configuration and the frequency domain resource configuration of the second resource includes at least one of:

[0527] all parameters of a random access channel common configuration RACH-ConfigCommon;

[0528] part of parameters of the RACH-ConfigCommon;

[0529] RO group information of the second resource that is allowed to be activated or deactivated;

[0530] target SSB index;

[0531] RO mask mask.

[0532] In some embodiments, in a case where the time domain resource configuration and the frequency domain resource configuration of the second resource only include part of parameters of RACH-ConfigCommon, other parameters for determining the second resource are determined by the time domain resource configuration and / or the frequency domain resource configuration of the first resource.

[0533] In some embodiments, the grouping manner of the RO groups of the second resource includes at least one of the following:

[0534] a grouping identifier to which each RO of the ROs of the second resource belongs is configured by a network side device;

[0535] the ROs are grouped according to an RO mask configured by the network side device;

[0536] grouping according to a pre-defined rule of a protocol;

[0537] The pre-defined rule of the protocol includes any one of the following: ROs in a preset time domain range are a group, ROs in a preset frequency domain range are a group, ROs in a preset number range are a group, ROs with even occasion numbers are a group, or ROs with odd occasion numbers are a group.

[0538] In some embodiments, in a case where the first configuration information includes a target SSB index,

[0539] ROs associated with the target SSB index are allowed to be activated or deactivated; and / or

[0540] the terminal determines occasions in the second resource that are allowed to be activated or deactivated according to the ROs associated with the target SSB index.

[0541] In some embodiments, in a case where the time domain resource configuration and the frequency domain resource configuration of the second resource include an RO mask,

[0542] ROs corresponding to the RO mask are allowed to be activated or deactivated; and / or

[0543] the terminal determines occasions in the second resource that are allowed to be activated or deactivated according to the RO mask.

[0544] In some embodiments, the preamble configuration of the second resource includes at least one of the following:

[0545] a feature of preamble association of the second resource, and a starting preamble index and a number of each of the features;

[0546] a starting index and a number of the target preambles.

[0547] In some embodiments, the time-domain relative relationship between the second resource and the first resource comprises at least one of:

[0548] a period of the second resource within a period of the first resource;

[0549] a number of bursts and / or occasions of the second resource within a period of the first resource;

[0550] a ratio value of a period of the second resource to a period of the first resource;

[0551] a time interval between each occasion and / or RO cluster of the second resource;

[0552] a time interval of an occasion of the second resource relative to an occasion of the first resource;

[0553] a time interval of an occasion of the second resource relative to an occasion of the first resource within each time unit;

[0554] a number of occasions and / or clusters of the second resource that are allowed to be activated or deactivated within each time unit;

[0555] an offset value between a PRACH configuration index of the second resource and a PRACH configuration index of the first resource;

[0556] a time offset value of a first PRACH slot or a last PRACH slot or each PRACH slot or a first RO or a last RO or a first PRACH cluster or each PRACH cluster of the second resource relative to the first resource;

[0557] a number of PRACH slots or ROs or clusters of the second resource relative to the first resource;

[0558] wherein the period and / or the time interval comprises at least one of: a radio frame, a half frame, a subframe, a slot, a millisecond, a PRACH period, a PRACH slot, a PRACH occasion, a PRACH association period, a PRACH association pattern period.

[0559] In some embodiments, the first indication information indicates at least one of:

[0560] PRACH configuration index;

[0561] activate or deactivate all the second resources;

[0562] activate or deactivate part of the second resources;

[0563] valid duration of the activated or deactivated all or part of the second resources;

[0564] SSB index associated with the second resources;

[0565] second indication information of turning on or off discontinuous transmission and / or discontinuous reception of a cell.

[0566] In some embodiments, when the first indication information indicates to activate or deactivate part of the second resources, the first indication information further indicates at least one of:

[0567] resource group identification of the activated or deactivated resources in the second resources;

[0568] subframe number or slot number;

[0569] frequency domain starting position of a starting occasion in the second resources and number of occasions continuous in the order of frequency domain first and time domain second;

[0570] identification of a starting occasion in the second resources and number of occasions continuous in the order of frequency domain first and time domain second;

[0571] identification of a starting preamble in the second resources and number of activated or deactivated preambles;

[0572] period of the activated second resources within the first resource period;

[0573] number of the activated second resources within the first resource period;

[0574] period of the activated second resources within a single time unit;

[0575] number of the activated second resources within a single time unit.

[0576] In some embodiments, the first indication information is carried by at least one of:

[0577] paging message;

[0578] radio resource control (RRC) connection setup message;

[0579] RRC connection release message;

[0580] downlink control information (DCI);

[0581] Media Access Control Control Element, MAC CE

[0582] System Information Block, SIB

[0583] In some embodiments, the first configuration information is carried by at least one of the following:

[0584] paging message

[0585] RRC connection setup message

[0586] RRC connection release message

[0587] SIB

[0588] The PRACH resource indication apparatus 30 in the embodiments of the present application can be an electronic device, for example, an electronic device with an operating system, or a component in an electronic device, for example, an integrated circuit or a chip. The electronic device can be a terminal or other device. For example, the terminal can include, but is not limited to, the types of the terminal 11 listed above, and the other device can be a server, a network attached storage (NAS), etc., which are not limited in the embodiments of the present application.

[0589] The PRACH resource indication apparatus provided in the embodiments of the present application can realize each process realized by the method embodiments and achieve the same technical effects. To avoid repetition, details are not described herein.

[0590] As shown in FIG. 13, the embodiments of the present application further provide a communication device 60, which includes a processor 61 and a memory 62, and the memory 62 stores programs or instructions executable on the processor 61. For example, when the communication device 60 is a terminal, the programs or instructions are executed by the processor 61 to realize each step of the PRACH resource indication method embodiments and achieve the same technical effects. When the communication device 60 is a network side device, the programs or instructions are executed by the processor 61 to realize each step of the PRACH resource indication method embodiments and achieve the same technical effects. To avoid repetition, details are not described herein.

[0591] The embodiments of the present application further provide a terminal, which includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run programs or instructions to realize the steps in the method embodiments as shown in FIG. 4. The terminal embodiments correspond to the terminal side method embodiments described above, and each implementation process and implementation manner of the method embodiments can be applied to the terminal embodiments and achieve the same technical effects.

[0592] Specifically, FIG. 14 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.

[0593] The terminal 700 includes, but is not limited to, at least part of components such as a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, and a processor 710.

[0594] Those skilled in the art can understand that the terminal 700 can further include a power supply (such as a battery) for supplying power to each component, and the power supply can be logically connected to the processor 710 through a power management system, so as to realize functions such as management of charging, discharging, and power consumption management through the power management system. The terminal structure shown in FIG. 14 does not constitute a limitation on the terminal, and the terminal can include more or fewer components than those shown, or combine certain components, or different component arrangements, which are not described here again.

[0595] It should be understood that in the embodiments of the present application, the input unit 704 can include a graphics processing unit (GPU) 7041 and a microphone 7042, and the graphics processing unit 7041 processes image data of a still picture or a video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 706 can include a display panel 7061, which can be configured in the form of a liquid crystal display, an organic light-emitting diode, etc. The user input unit 707 includes at least one of a touch panel 7071 and other input devices 7072. The touch panel 7071 is also called a touch screen. The touch panel 7071 can include two parts of a touch detection device and a touch controller. The other input devices 7072 can include, but are not limited to, a physical keyboard, function keys (such as volume control keys, on-off keys, etc.), trackballs, mice, joysticks, etc., which are not described here again.

[0596] In the embodiments of the present application, the radio frequency unit 701 can transmit the downlink data received from the network side device to the processor 710 for processing, and can send uplink data to the network side device. Generally, the radio frequency unit 701 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0597] The memory 709 can be used to store software programs or instructions and various data. The memory 709 can mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area can store an operating system, application programs or instructions required by at least one function (such as a sound playing function, an image playing function, etc.), and the like. In addition, the memory 709 can include a volatile memory or a non-volatile memory. The non-volatile memory can be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically EPROM (EEPROM), or a flash memory. The volatile memory can be a Random Access Memory (RAM), a Static RAM (SRAM), a Dynamic RAM (DRAM), a Synchronous DRAM (SDRAM), a Double Data Rate SDRAM (DDR SDRAM), an Enhanced SDRAM (ESDRAM), a Synch link DRAM (SLDRAM), and a Direct Rambus RAM (DRRAM). The memory 709 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0598] The processor 710 can include one or more processing units; optionally, the processor 710 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and an application program, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above-mentioned modem processor can also not be integrated into the processor 710.

[0599] It can be understood that the implementation processes of the implementation modes mentioned in the embodiment can refer to the related descriptions of the above-mentioned method embodiments and achieve the same or corresponding technical effects, and to avoid repetition, they will not be described here again.

[0600] The embodiment of the present application further provides a network side device, comprising a processor and a communication interface, the communication interface is coupled with the processor, and the processor is used to run programs or instructions to realize the steps of the method embodiment shown in Fig. 5. The network side device embodiment corresponds to the network side device method embodiment described above, and each implementation process and implementation manner of the method embodiment described above can be applied to the network side device embodiment and can achieve the same technical effects.

[0601] Specifically, the embodiment of the present application further provides a network side device. As shown in Fig. 15, the network side device 80 comprises an antenna 81, a radio frequency device 82, a baseband device 83, a processor 84 and a memory 85. The antenna 81 is connected with the radio frequency device 82. In the uplink direction, the radio frequency device 82 receives information through the antenna 81 and sends the received information to the baseband device 83 for processing. In the downlink direction, the baseband device 83 processes the information to be sent and sends it to the radio frequency device 82, and the radio frequency device 82 processes the received information and sends it out through the antenna 81.

[0602] The method performed by the network side device in the above embodiment can be implemented in the baseband device 83, which comprises a baseband processor.

[0603] The baseband device 83 may, for example, comprise at least one baseband board on which a plurality of chips are arranged, as shown in Fig. 15, one of which is a baseband processor, which is connected with the memory 85 through a bus interface to call the programs in the memory 85 and execute the network device operations shown in the above method embodiments.

[0604] The network side device may further comprise a network interface 86, which is, for example, a Common Public Radio Interface (CPRI).

[0605] Specifically, the network side device 80 of the embodiment of the present application further comprises instructions or programs stored in the memory 85 and executable on the processor 84, the processor 84 calls the instructions or programs in the memory 85 to execute the method performed by each module shown in Fig. 12 and achieve the same technical effects. To avoid repetition, details are not described here.

[0606] The embodiment of the present application further provides a readable storage medium, the readable storage medium stores programs or instructions, the programs or instructions are executed by the processor to realize each process of the above PRACH resource indication method embodiment and achieve the same technical effects. To avoid repetition, details are not described here.

[0607] The processor is the processor in the terminal in the above-described embodiments. The readable storage medium includes a computer readable storage medium, such as a computer readable only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc. In some examples, the readable storage medium can be a non-transitory readable storage medium.

[0608] The embodiment of the present application further provides a chip, which comprises a processor and a communication interface, wherein the communication interface is coupled with the processor, the processor is used to run programs or instructions, realizes various processes of the above-mentioned PRACH resource indication method embodiment, and can achieve the same technical effects. To avoid repetition, details are not described herein.

[0609] It should be understood that the chip mentioned in the embodiment of the present application can also be referred to as a system chip, a system chip, a chip system or a system on chip, etc.

[0610] The embodiment of the present application further provides a computer program / program product, which is stored in a storage medium, and is executed by at least one processor to realize various processes of the above-mentioned PRACH resource indication method embodiment, and can achieve the same technical effects. To avoid repetition, details are not described herein.

[0611] The embodiment of the present application further provides a wireless communication system, which comprises a terminal and a network side device, wherein the terminal can be used to execute the steps of the above-mentioned PRACH resource indication method, and the network side device can be used to execute the steps of the above-mentioned PRACH resource indication method.

[0612] It should be noted that in this document, the terms "comprising", "including", or any other variant thereof are intended to cover non-exclusive inclusion, so that processes, methods, articles or devices including a series of elements not only include those elements, but also include other elements not explicitly listed, or further include elements inherent to such processes, methods, articles or devices. Without more limitations, the element defined by the statement "including a" does not exclude the presence of additional identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but can also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method can be performed in an order different from that described, and various steps can also be added, omitted or combined. In addition, the features described with reference to some examples can be combined in other examples.

[0613] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned example methods can be realized by means of a computer software product and a general hardware platform as necessary, and of course can also be realized by hardware. The computer software product is stored in a storage medium (such as a ROM, a RAM, a magnetic disc, an optical disc, etc.), and includes a plurality of instructions for enabling a terminal or a network side device to execute the method described in each embodiment of the present application.

[0614] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the specific embodiments described above, and the specific embodiments described above are merely illustrative rather than limiting. Those skilled in the art can make many forms of embodiments under the inspiration of the present application without departing from the scope of the present application and the scope protected by the claims, and these embodiments all belong to the protection of the present application.

Claims

1. A PRACH resource indication method, comprising: The terminal receives first configuration information and first indication information of the network side device, where the first configuration information is configuration information of a candidate physical random access channel PRACH resource; The terminal determines a target PRACH resource from the candidate PRACH resources according to the first configuration information and the first indication information; The candidate PRACH resources include different types of PRACH resources, and the different types of PRACH resources include at least a second resource, and the second resource is a PRACH resource that is allowed to be activated or deactivated.

2. The PRACH resource indication method according to claim 1, wherein: The candidate PRACH resources further include a first resource, where the first resource and / or the second resource meets at least one of the following conditions: The first resource and the second resource are numbered together and mapped to a synchronization signal block SSB; The mapping relationship between the SSB and the random access occasion RO of the first resource and the second resource is the same or different; The preamble sequence configurations of the first resource and the second resource are the same or different; The first resource and the second resource have different priorities; The time-frequency positions of the first resource and the second resource completely overlap, completely do not overlap, or partially overlap; The business types of the business associated with the first resource and the second resource are different; The quality of service (QoS) of services associated with the first resource and the second resource are different; The first resource and the second resource are associated with different terminal types; The first resource is a PRACH resource that is not allowed to be activated or deactivated.

3. The PRACH resource indication method according to claim 2, wherein: The mapping relationship between the SSB and the RO of the first resource and the second resource is the same, including at least one of the following: The number and / or number of SSBs mapped to the first resource is the same as the number and / or number of SSBs mapped to the second resource; The number of SSBs associated with each opportunity on the first resource is the same as the number of SSBs associated with each opportunity on the second resource.

4. The PRACH resource indication method according to claim 2, wherein: The difference in mapping relationship between the SSB and the RO between the first resource and the second resource includes at least one of the following: The number and / or number of SSBs mapped to the first resource is different from the number and / or number of SSBs mapped to the second resource; The number of SSBs associated with each opportunity on the first resource is different from the number of SSBs associated with each opportunity on the second resource.

5. The PRACH resource indication method according to claim 2, wherein: The first configuration information includes at least one of the following: time domain resource configuration, frequency domain resource configuration, and preamble sequence configuration of the first resource; Time domain resource configuration and frequency domain resource configuration of the second resource; A random access preamble configuration of the second resource; The SSB index associated with the second resource; The time domain relative relationship between the second resource and the first resource.

6. The PRACH resource indication method according to claim 5, wherein: The time domain resource configuration and frequency domain resource configuration of the second resource include at least one of the following: All parameters of the random access channel common configuration RACH-ConfigCommon; Some parameters of RACH-ConfigCommon; RO group information that the second resource allows to be activated or deactivated; Target SSB index; RO mask mask.

7. The PRACH resource indication method according to claim 6, wherein: In a case where the time domain resource configuration and the frequency domain resource configuration of the second resource only include some parameters of RACH-ConfigCommon, other parameters used to determine the second resource are determined by the time domain resource configuration and / or the frequency domain resource configuration of the first resource.

8. The PRACH resource indication method according to claim 6, wherein: The grouping manner of the RO group of the second resource includes at least one of the following: The network side device configures the group identifier to which each RO in the RO of the second resource belongs; ROs are grouped according to the RO mask configured on the network side device; Grouping according to the rules predefined by the protocol; The protocol predefined rules include any of the following: ROs within a preset time domain range are grouped together, ROs within a preset frequency domain range are grouped together, ROs within a preset number range are grouped together, ROs with even occasion numbers are grouped together, or ROs with odd occasion numbers are grouped together.

9. The PRACH resource indication method according to claim 6, wherein: When the first configuration information includes the target SSB index, The RO associated with the target SSB index is allowed to be activated or deactivated; and / or The terminal determines a timing when the second resource is allowed to be activated or deactivated according to the RO associated with the target SSB index.

10. The PRACH resource indication method according to claim 6, wherein: When the time domain resource configuration and frequency domain resource configuration of the second resource include an RO mask, The RO corresponding to the RO mask is allowed to be activated or deactivated; and / or The terminal determines, according to the RO mask, a timing at which the second resource is allowed to be activated or deactivated.

11. The PRACH resource indication method according to claim 5, wherein: The preamble configuration of the second resource includes at least one of the following: The feature associated with the preamble of the second resource and the starting preamble number and quantity of each feature; The starting index and number of target preambles.

12. The PRACH resource indication method according to claim 5, wherein: The temporal relationship between the second resource and the first resource includes at least one of the following: the period of the second resource within the period of the first resource; the number of cluster bursts and / or opportunities of the second resource within the period of the first resource; a ratio of a period of the second resource to a period of the first resource; The time interval between each opportunity and / or opportunity cluster RO cluster of the second resource; a time interval between the timing of the second resource and the timing of the first resource; In each time unit, the time interval between the timing of the second resource and the timing of the first resource; The timing and / or number of clusters at which the second resource is allowed to be activated or deactivated within each time unit; an offset value between the PRACH configuration index of the second resource and the PRACH configuration index of the first resource; A time offset value of the second resource relative to the first PRACH time slot or the last PRACH time slot or each PRACH time slot or the first RO or the last RO or the first PRACH cluster or each PRACH cluster of the first resource; The number of PRACH time slots, ROs, or clusters of the second resource relative to the first resource; The period and / or the time interval includes at least one of the following: a radio frame, a half frame, a subframe, a time slot, a millisecond, a PRACH period, a PRACH time slot, a PRACH opportunity, a PRACH association period, and a PRACH association pattern period.

13. The PRACH resource indication method according to claim 2, wherein: The first indication information indicates at least one of the following: PRACH configuration index; Activate or deactivate all second resources; activating or deactivating part of the second resource; a validity period for activating or deactivating all or part of the second resource; an SSB index associated with the second resource; Second indication information for turning on or off discontinuous transmission and / or discontinuous reception of a cell.

14. The PRACH resource indication method according to claim 13, wherein: When the first indication information indicates activation or deactivation of part of the second resources, the first indication information further indicates at least one of the following: an identifier of a resource group activated or deactivated in the second resource; Subframe number or time slot number; The frequency domain starting position of the starting opportunity in the second resource and the number of multiple opportunities that are consecutive in the order of first frequency domain and then time domain; an identifier of a starting opportunity in the second resource and a number of consecutive opportunities in the order of first frequency domain and then time domain; an identifier of a starting preamble and the number of activated or deactivated preambles in the second resource; The period of the second resource activated within the period of the first resource; the number of the second resources activated during the period of the first resource; a period of the second resource being activated within a single time unit; The number of activated second resources in a single time unit.

15. The PRACH resource indication method according to claim 2, wherein: When both the first resource and the second resource are configured or indicated as valid by the network side device, the terminal determines the RO for random access in the target PRACH resource according to at least one of the following: Instructions or configuration of network-side equipment; Number of random access failures; The time and / or distance at which the PRACH is sent is the shortest; Priority of RO resources; Service type or service QoS; The type or capabilities of the terminal.

16. The PRACH resource indication method according to claim 15, wherein: When the terminal determines the target PRACH resource according to the instruction or configuration of the network side device, the terminal determines the target PRACH resource including: In a case where the network side device configures the second resource, the terminal preferentially selects the second resource as the target PRACH resource; or In a case where the network side device configures the second resource and the second resource is initially an invalid resource by default, the terminal preferentially selects the second resource as the target PRACH resource after receiving the first indication information.

17. The PRACH resource indication method according to claim 2, wherein: The second resource is an RO resource that satisfies at least one of the following conditions: a resource independent of the first resource; Resources that can be activated or deactivated by network-side devices; Resources with a different mapping mode from the first resource mapping mode, the mapping mode including mapping between SSB and RO and mapping between preamble and SSB; Resources configured by attaching RACH-ConfigCommon.

18. The PRACH resource indication method according to claim 1, wherein: The method further comprises: When the first indication information is not received, the terminal determines the target PRACH resource according to the parameters indicated in the RACH-ConfigCommon or the message MsgA-ConfigCommon.

19. A PRACH resource indication method, comprising: The network side device sends first configuration information and / or first indication information to the terminal, where the first configuration information is configuration information of candidate physical random access channel (PRACH) resources, so that the terminal determines a target PRACH resource from the candidate PRACH resources according to the first configuration information and the first indication information; The candidate PRACH resources include different types of PRACH resources, and the different types of PRACH resources include at least a second resource, and the second resource is a PRACH resource that is allowed to be activated or deactivated.

20. The PRACH resource indication method according to claim 19, wherein: The network-side device determines whether to send the first indication information according to at least one of the following: Random access collision level of the terminal; The number of terminals that support sending the uplink wake-up signal WUS; The number of idle terminals; Information reported by idle terminals.

21. The PRACH resource indication method according to claim 20, wherein: The random access collision degree of the terminal is determined according to at least one of the following: The percentage of random access preamble used; The number or percentage of messages MSG3 with different terminal identifiers.

22. The PRACH resource indication method according to claim 20, wherein: The information reported by the idle terminal includes at least one of the following: Msg1 is sent repeatedly. Msg1 power increase times; Msg1 power boost value; The feedback information after successful access carried in MSG3.

23. The PRACH resource indication method according to claim 19, wherein: The candidate PRACH resources further include a first resource, where the first resource and / or the second resource meets at least one of the following conditions: The first resource and the second resource are numbered together and mapped to a synchronization signal block SSB; The mapping relationship between the SSB and the random access occasion RO of the first resource and the second resource is the same or different; The preamble sequence configurations of the first resource and the second resource are the same or different; The first resource and the second resource have different priorities; The time-frequency positions of the first resource and the second resource completely overlap, completely do not overlap, or partially overlap; The business types of the business associated with the first resource and the second resource are different; The quality of service (QoS) of services associated with the first resource and the second resource are different; The first resource and the second resource are associated with different terminal types; The first resource is a PRACH resource that is not allowed to be activated or deactivated.

24. The PRACH resource indication method according to claim 23, wherein: The mapping relationship between the SSB and the RO of the first resource and the second resource is the same, including at least one of the following: The number and / or number of SSBs mapped to the first resource is the same as the number and / or number of SSBs mapped to the second resource; The number of SSBs associated with each opportunity on the first resource is the same as the number of SSBs associated with each opportunity on the second resource.

25. The PRACH resource indication method according to claim 23, wherein: The difference in mapping relationship between the SSB and the RO between the first resource and the second resource includes at least one of the following: The number and / or number of SSBs mapped to the first resource is different from the number and / or number of SSBs mapped to the second resource; The number of SSBs associated with each opportunity on the first resource is different from the number of SSBs associated with each opportunity on the second resource.

26. The PRACH resource indication method according to claim 23, wherein: The first configuration information includes at least one of the following: time domain resource configuration, frequency domain resource configuration, and preamble sequence configuration of the first resource; Time domain resource configuration and frequency domain resource configuration of the second resource; preamble configuration of the second resource; The SSB index associated with the second resource; The time domain relative relationship between the second resource and the first resource.

27. The PRACH resource indication method according to claim 26, wherein: The time domain resource configuration and frequency domain resource configuration of the second resource include at least one of the following: All parameters of the random access channel common configuration RACH-ConfigCommon; Some parameters of RACH-ConfigCommon; RO group information that the second resource allows to be activated or deactivated; Target SSB index; RO mask mask.

28. The PRACH resource indication method according to claim 27, wherein: In a case where the time domain resource configuration and the frequency domain resource configuration of the second resource only include some parameters of RACH-ConfigCommon, other parameters used to determine the second resource are determined by the time domain resource configuration and / or the frequency domain resource configuration of the first resource.

29. The PRACH resource indication method according to claim 27, wherein: The grouping manner of the RO group of the second resource includes at least one of the following: The network side device configures the group identifier to which each RO in the RO of the second resource belongs; ROs are grouped according to the RO mask configured on the network side device; Grouping according to the rules predefined by the protocol; The protocol predefined rules include any of the following: ROs within a preset time domain range are grouped together, ROs within a preset frequency domain range are grouped together, ROs within a preset number range are grouped together, ROs with even occasion numbers are grouped together, or ROs with odd occasion numbers are grouped together.

30. The PRACH resource indication method according to claim 27, wherein: When the first configuration information includes the target SSB index, The RO associated with the target SSB index is allowed to be activated or deactivated; and / or The terminal determines a timing when the second resource is allowed to be activated or deactivated according to the RO associated with the target SSB index.

31. The PRACH resource indication method according to claim 27, wherein: When the time domain resource configuration and frequency domain resource configuration of the second resource include an RO mask, The RO corresponding to the RO mask is allowed to be activated or deactivated; and / or The terminal determines, according to the RO mask, a timing at which the second resource is allowed to be activated or deactivated.

32. The PRACH resource indication method according to claim 26, wherein: The preamble configuration of the second resource includes at least one of the following: The feature associated with the preamble of the second resource and the starting preamble number and quantity of each feature; The starting index and number of target preambles.

33. The PRACH resource indication method according to claim 26, wherein: The temporal relationship between the second resource and the first resource includes at least one of the following: the period of the second resource within the period of the first resource; the number of cluster bursts and / or opportunities of the second resource within the period of the first resource; a ratio of a period of the second resource to a period of the first resource; The time interval between each opportunity and / or opportunity cluster RO cluster of the second resource; a time interval between the timing of the second resource and the timing of the first resource; In each time unit, the time interval between the timing of the second resource and the timing of the first resource; The timing and / or number of clusters at which the second resource is allowed to be activated or deactivated within each time unit; an offset value between the PRACH configuration index of the second resource and the PRACH configuration index of the first resource; A time offset value of the second resource relative to the first PRACH time slot or the last PRACH time slot or each PRACH time slot or the first RO or the last RO or the first PRACH cluster or each PRACH cluster of the first resource; The number of PRACH time slots, ROs, or clusters of the second resource relative to the first resource; The period and / or the time interval includes at least one of the following: a radio frame, a half frame, a subframe, a time slot, a millisecond, a PRACH period, a PRACH time slot, a PRACH opportunity, a PRACH association period, and a PRACH association pattern period.

34. The PRACH resource indication method according to claim 23, wherein: The first indication information indicates at least one of the following: PRACH configuration index; Activate or deactivate all second resources; activating or deactivating part of the second resource; a validity period for activating or deactivating all or part of the second resource; an SSB index associated with the second resource; Second indication information for turning on or off discontinuous transmission and / or discontinuous reception of a cell.

35. The PRACH resource indication method according to claim 34, wherein: When the first indication information indicates activation or deactivation of part of the second resources, the first indication information further indicates at least one of the following: an identifier of a resource group activated or deactivated in the second resource; Subframe number or time slot number; The frequency domain starting position of the starting opportunity in the second resource and the number of multiple opportunities that are consecutive in the order of first frequency domain and then time domain; an identifier of a starting opportunity in the second resource and a number of consecutive opportunities in the order of first frequency domain and then time domain; an identifier of a starting preamble and the number of activated or deactivated preambles in the second resource; The period of the second resource activated within the period of the first resource; the number of the second resources activated during the period of the first resource; a period of the second resource being activated within a single time unit; The number of activated second resources in a single time unit.

36. A PRACH resource indication device, comprising: A receiving module, configured to receive first configuration information and first indication information of a network-side device, where the first configuration information is configuration information of a candidate physical random access channel (PRACH) resource; a processing module, configured to determine a target PRACH resource from the candidate PRACH resources according to the first configuration information and the first indication information; The candidate PRACH resources include different types of PRACH resources, and the different types of PRACH resources include at least a second resource, and the second resource is a PRACH resource that is allowed to be activated or deactivated.

37. The PRACH resource indication device according to claim 36, wherein: The candidate PRACH resources further include a first resource, where the first resource and / or the second resource meets at least one of the following conditions: The first resource and the second resource are numbered together and mapped to a synchronization signal block SSB; The mapping relationship between the SSB and the random access occasion RO of the first resource and the second resource is the same or different; The preamble sequence configurations of the first resource and the second resource are the same or different; The first resource and the second resource have different priorities; The time-frequency positions of the first resource and the second resource completely overlap, completely do not overlap, or partially overlap; The business types of the business associated with the first resource and the second resource are different; The quality of service (QoS) of services associated with the first resource and the second resource are different; The first resource and the second resource are associated with different terminal types; The first resource is a PRACH resource that is not allowed to be activated or deactivated.

38. A PRACH resource indication device, comprising: a sending module, configured to send first configuration information and / or first indication information to a terminal, where the first configuration information is configuration information of a candidate physical random access channel (PRACH) resource, so that the terminal determines a target PRACH resource from the candidate PRACH resources according to the first configuration information and the first indication information; The candidate PRACH resources include different types of PRACH resources, and the different types of PRACH resources include at least a second resource, and the second resource is a PRACH resource that is allowed to be activated or deactivated.

39. The PRACH resource indication device according to claim 38, wherein: The sending module is specifically configured to determine whether to send the first indication information according to at least one of the following: Random access collision level of the terminal; The number of terminals that support sending the uplink wake-up signal WUS; The number of idle terminals; Information reported by idle terminals.

40. A terminal comprising 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 steps of the PRACH resource indication method according to any one of claims 1 to 18 are implemented.

41. A network-side device comprising 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 steps of the PRACH resource indication method according to any one of claims 19 to 35 are implemented.

42. A readable storage medium storing a program or instruction, wherein the program or instruction, when executed by a processor, implements the steps of the PRACH resource indication method according to any one of claims 1 to 18, or implements the steps of the PRACH resource indication method according to any one of claims 19 to 35.

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