Method and apparatus for wireless communication

Abstract

Provided are a method and apparatus for wireless communication. The method includes: a first terminal device receiving a first SSB sent by a network device; the first terminal device performing uplink transmission through a first RO set corresponding to the first SSB; wherein the first SSB corresponds to a first area, and the first RO set is related to a load of the first area.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and more particularly, to a method and apparatus for wireless communication. Background Art

[0002] To facilitate network access for terminal devices, network equipment configures random access resources and performs detection based on these resources. These resources are allocated based on the principle of fairness across coverage areas. However, this fairness-based resource allocation and blind detection can result in significant energy waste. Therefore, how to configure random access resources to achieve network energy conservation has become a pressing technical challenge. Summary of the Invention

[0003] The present application provides a method and apparatus for wireless communication. The following describes various aspects of the embodiments of the present application.

[0004] In a first aspect, a method for wireless communication is provided, including: a first terminal device receives a first SSB sent by a network device; the first terminal device performs uplink transmission through a first RO set corresponding to the first SSB; wherein the first SSB corresponds to a first area, and the first RO set is related to the load of the first area.

[0005] In a second aspect, a method for wireless communication is provided, including: a network device sends a first SSB to a first terminal device; the network device receives uplink transmission through a first random access channel opportunity RO set corresponding to the first SSB; wherein, the first SSB corresponds to a first area, and the first RO set is related to the load of the first area.

[0006] According to a third aspect, a device for wireless communication is provided, which is a first terminal device, and includes: a receiving unit for receiving a first SSB sent by a network device; a sending unit for performing uplink transmission through a first RO set corresponding to the first SSB; wherein the first SSB corresponds to a first area, and the first RO set is related to the load of the first area.

[0007] In a fourth aspect, a device for wireless communication is provided, which is a network device, and includes: a sending unit for sending a first SSB to a first terminal device; a receiving unit for receiving uplink transmission through a first RO set corresponding to the first SSB; wherein the first SSB corresponds to a first area, and the first RO set is related to the load of the first area.

[0008] In a fifth aspect, a communication device is provided, comprising a memory and a processor, wherein the memory is used to store a program, and the processor is used to call the program in the memory to execute the method described in the first aspect or the second aspect.

[0009] In a sixth aspect, a device is provided, comprising a processor for calling a program from a memory to execute the method as described in the first aspect or the second aspect.

[0010] In a seventh aspect, a chip is provided, comprising a processor for calling a program from a memory so that a device equipped with the chip executes the method described in the first aspect or the second aspect.

[0011] In an eighth aspect, a computer-readable storage medium is provided, on which a program is stored, wherein the program enables a computer to execute the method as described in the first aspect or the second aspect.

[0012] In a ninth aspect, a computer program product is provided, comprising a program, wherein the program enables a computer to execute the method as described in the first aspect or the second aspect.

[0013] In a tenth aspect, a computer program is provided, which enables a computer to execute the method as described in the first aspect or the second aspect.

[0014] In this embodiment of the present application, the first RO set used by the first terminal device for uplink transmission is related to the load of the first area. When the loads of different areas within the first cell vary, the RO sets in different areas will also vary. Furthermore, when the network device detects access requests based on the RO set, the required blind detection can vary with changes in the area load, thereby reducing unnecessary energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a wireless communication system applied in the embodiments of the present application.

[0016] Figure 2 This is a flow chart of a method for wireless communication provided in an embodiment of the present application.

[0017] Figure 3 yes Figure 2 A schematic diagram of a possible implementation of the method shown.

[0018] Figure 4 yes Figure 2 A schematic diagram of another possible implementation of the method shown.

[0019] Figure 5 yes Figure 2 A schematic diagram of yet another possible implementation of the method shown.

[0020] Figure 6 yes Figure 2 A schematic diagram of yet another possible implementation of the method shown.

[0021] Figure 7 This is a schematic diagram of the structure of a device for wireless communication provided in an embodiment of the present application.

[0022] Figure 8 It is a structural diagram of another device for wireless communication provided in an embodiment of the present application.

[0023] Figure 9 It is a structural diagram of a communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0024] The following will describe the technical solutions in the embodiments of this application in conjunction with the drawings in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. With respect to the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0025] The embodiments of the present application can be applied to various communication systems. For example, the embodiments of the present application can be applied to global system of mobile communication (GSM) system, code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) system, general packet radio service (GPRS) system, long term evolution (LTE) system, advanced long term evolution (LTE-A) system, new radio (NR) system, NR system evolution system, LTE-based access to unlicensed spectrum (LTE-U) system on unlicensed spectrum, NR-based access to unlicensed spectrum (NR-U) system on unlicensed spectrum, universal mobile telecommunication system (UMTS), wireless local area network (WLAN) system, wireless fidelity (WiFi) system, and fifth generation communication (5G) system. The embodiments of the present application can also be applied to other communication systems, such as the sixth-generation (6G) mobile communication system, or future communication systems such as satellite communication systems.

[0026] Traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, communication systems can not only support traditional cellular communications, but also support one or more other types of communications. For example, a communication system can support one or more of the following communications: device to device (D2D) communication, machine to machine (M2M) communication, machine type communication (MTC), enhanced machine type communication (eMTC), vehicle to vehicle (V2V) communication, and vehicle to everything (V2X) communication, etc. The embodiments of the present application can also be applied to communication systems that support the above-mentioned communication methods.

[0027] The communication system in the embodiment of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, and a standalone (SA) networking scenario.

[0028] The communication system in the embodiments of the present application can be applied to unlicensed spectrum. The unlicensed spectrum can also be considered a shared spectrum. Alternatively, the communication system in the embodiments of the present application can also be applied to licensed spectrum. The licensed spectrum can also be considered a dedicated spectrum.

[0029] The embodiments of the present application can be applied to non-terrestrial network (NTN) systems. As an example, the NTN system can be a 4G-based NTN system, an NR-based NTN system, an Internet of Things (IoT)-based NTN system, or a narrowband Internet of Things (NB-IoT)-based NTN system.

[0030] A communication system may include one or more terminal devices. The terminal devices mentioned in the embodiments of the present application may also be referred to as user equipment (UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.

[0031] In some embodiments, the terminal device may be a station (ST) in a WLAN. In some embodiments, the terminal device may be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA) device, a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a next-generation communication system (e.g., a NR system), or a terminal device in a future-evolved public land mobile network (PLMN) network.

[0032] In some embodiments, a terminal device may be a device that provides voice and / or data connectivity to a user. For example, the terminal device may be a handheld device, an in-vehicle device, etc. with wireless connection capabilities. As some specific examples, the terminal device may be a mobile phone, a tablet computer, a laptop computer, a PDA, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, etc.

[0033] In some embodiments, the terminal device can be deployed on land. For example, the terminal device can be deployed indoors or outdoors. In some embodiments, the terminal device can be deployed on the water, such as on a ship. In some embodiments, the terminal device can be deployed in the air, such as on an airplane, a balloon, or a satellite.

[0034] In addition to the terminal device, the communication system may also include one or more network devices. The network device in the embodiment of the present application may be a device for communicating with the terminal device, and the network device may also be referred to as an access network device or a radio access network device. The network device may be, for example, a base station. The network device in the embodiment of the present application may refer to a radio access network (RAN) node (or device) that connects the terminal device to a wireless network. A base station may broadly cover various names as follows, or be replaced with the following names, such as: NodeB, evolved NodeB (eNB), next generation NodeB (gNB), relay station, access point, transmitting and receiving point (TRP), transmitting point (TP), master station (MeNB), secondary station (SeNB), multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. A base station may be a macro base station, a micro base station, a relay node, a donor node, or the like, or a combination thereof. A base station may also refer to a communication module, modem, or chip used to be set in the aforementioned device or apparatus. A base station may also be a mobile switching center and a device that performs base station functions in D2D, V2X, and M2M communications, a network-side device in a 6G network, or a device that performs base station functions in future communication systems. A base station may support networks with the same or different access technologies. The embodiments of this application do not limit the specific technology and specific device form used by network devices.

[0035] Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move based on the location of the mobile base station. In other examples, a helicopter or drone can be configured to act as a device that communicates with another base station.

[0036] In some deployments, the network device in the embodiments of the present application may refer to a CU or a DU, or the network device may include a CU and a DU. The gNB may also include an AAU.

[0037] By way of example and not limitation, in embodiments of the present application, a network device may be mobile, for example, a mobile device. In some embodiments of the present application, the network device may be a satellite or balloon station. In some embodiments of the present application, the network device may also be a base station located on land, water, or the like.

[0038] In an embodiment of the present application, the network device can provide services for a cell, and the terminal device communicates with the network device through the transmission resources used by the cell (for example, frequency domain resources, or spectrum resources). The cell can be a cell corresponding to the network device (for example, a base station). The cell can belong to a macro base station or a base station corresponding to a small cell. The small cells here may include: metro cells, micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

[0039] For example, Figure 1 This is a schematic diagram of the architecture of a communication system provided in an embodiment of the present application. Figure 1 As shown, the communication system 100 may include a network device 110, which may be a device that communicates with a terminal device 120 (or a communication terminal or terminal). The network device 110 may provide communication coverage for a specific geographic area and may communicate with terminal devices within the coverage area.

[0040] Figure 1 One network device and two terminal devices are shown as an example. In some embodiments of the present application, the communication system 100 may include multiple network devices and each network device may include another number of terminal devices within its coverage area, which is not limited.

[0041] In the embodiments of this application, Figure 1 The communication system shown may also include other network entities such as a mobility management entity (MME) and an access and mobility management function (AMF), which is not limited in the embodiments of the present application.

[0042] It should be understood that the device with communication function in the network / system in the embodiment of the present application can be called a communication device. Figure 1Taking the communication system 100 shown as an example, the communication equipment may include a network device 110 and a terminal device 120 with communication functions. The network device 110 and the terminal device 120 may be the specific devices described above and will not be repeated here; the communication equipment may also include other devices in the communication system 100, such as a network controller, a mobile management entity and other network entities, which is not limited in this embodiment of the present application.

[0043] For ease of understanding, some relevant technical knowledge involved in the embodiments of this application is first introduced. The following related technologies can be combined with the technical solutions of the embodiments of this application as optional solutions, and they all fall within the scope of protection of the embodiments of this application. The embodiments of this application include at least part of the following contents.

[0044] With the advancement of mobile communication technology, next-generation wireless evolution systems (e.g., 5G systems) are using a variety of technologies to increase data transmission rates to meet the demands of transmitting large amounts of data, such as high-definition video and virtual reality. These technologies include massive multiple-input multiple-output (MIMO), non-orthogonal multiple access (NMA), simultaneous full-duplex communication (SCHF), novel modulation techniques, novel coding techniques, and high-order modulation techniques. These technologies enable peak data rates up to Gbit / s.

[0045] As an example, the air interface latency level needs to be around 1ms to meet real-time applications such as autonomous driving and telemedicine.

[0046] As an example, ultra-large network capacity can provide connectivity for hundreds of billions of devices, thus meeting the communication needs of the Internet of Things.

[0047] As an example, the spectrum efficiency of NR systems is over 10 times higher than that of LTE systems. Thanks to its continuous wide-area coverage and high mobility, users can experience data rates up to 100 Mbit / s. This significantly increases both traffic density and connection density.

[0048] Furthermore, improvements in system collaboration and intelligence further enhance network flexibility. This collaboration can be manifested in collaborative networking with multiple users, multiple points, multiple antennas, and multiple sources. This collaboration and intelligence enable flexible and automatic adjustments between networks.

[0049] However, in a communication system, the power consumption of network equipment (e.g., base stations) is generally high. In order to save power consumption of base station equipment, the network equipment can support two synchronization signal block (SSB) configurations: sparse SSB and dense SSB. Among them, sparse SSB is an SSB configuration with a relatively long periodicity, and dense SSB is an SSB configuration with a relatively short periodicity. Furthermore, the two SSB configurations supported by the network equipment can be configured based on dynamic activation. It should be noted that the SSB in the embodiment of the present application can also represent a synchronization signal / physical broadcast channel block (synchronization signal and PBCH block).

[0050] In some embodiments, when a network device transmits an SSB via a beam, different SSB indices correspond to beams in different directions. The network device can use multi-beam scanning to cover different areas of the serving cell. A terminal device located within a beam coverage area can determine the resource for random access based on the SSB index corresponding to the beam.

[0051] The time-frequency resources for random access of the terminal device can be designed by the network device for each SSB. Optionally, the resources for random access of the terminal device may refer to physical random access channel (PRACH) resources, or may refer to random access channel (RACH) resources. That is to say, the random access resources corresponding to the SSB may include PRACH resources, or may include RACH resources. Optionally, the random access resources may include one or more random access channel occasions (RACH occasions, RO). It should be noted that RO may also represent a physical random access channel occasion (PRACH occasion). For the sake of simplicity, the embodiment of the present application uses RO to represent the random access resources corresponding to the SSB.

[0052] As an example, the configuration of SSB and RO is set by the base station, wherein different SSB indexes correspond to different ROs.

[0053] In some embodiments, different beams transmitted by a network device cover different areas based on the beam direction. That is, different SSB indices can correspond to different coverage areas through beams in different directions. The associated PRACH configuration provides the same RACH resources for each SSB beam index. As an example, the design principle of RACH resources in Rel-15 is to provide fairness across each coverage area. For example, the network device allocates the same RACH resources to all SSB beam indices to achieve this fairness.

[0054] However, in actual communication service cells, different coverage areas have different resource requirements. From the perspective of network energy saving, it is not always beneficial to design the same RACH resources for each SSB.

[0055] For example, in a real network, terminal devices are randomly distributed within a cell. The number of terminal devices covered by an SSB beam varies over time. At time t1, the number of terminal devices in SSB#1 (timing index) may be smaller than the number of terminal devices at time t2. In this case, if multiple terminal devices at time t2 simultaneously transmit PRACH preambles for random access, the probability of a preamble collision at time t2 will be greater than at time t1.

[0056] For example, after configuring random access resources, network devices will perform blind detection at the appropriate time to receive access requests from terminal devices. Within a serving cell, the load from certain directions may be lower than the load from other directions. Lightly loaded areas typically do not receive many access requests. When configuring random access resources based on fairness, certain blind detections performed by network devices based on random access resources may be unnecessary for lightly loaded areas. This can result in significant energy waste in lightly loaded areas.

[0057] Furthermore, in scenarios where SSBs are dynamically configured to save energy, the configuration of random access resources also needs to be considered. For example, adaptive adjustment of SSBs may result in changes to the configuration of ROs used for certain SSBs. Therefore, to support dynamic SSB configuration and further energy conservation, network devices need to support adaptive adjustment of random access resources.

[0058] In summary, how to reasonably configure the RO corresponding to SSB to save the energy of network devices is a technical difficulty worthy of study.

[0059] It should be noted that the above-mentioned problem of energy waste due to different loads in different areas of the related design is only an example. The embodiments of the present application can be applied to any type of communication scenario in which energy waste occurs due to uneven load in the related design of communication equipment.

[0060] To address the above issues, an embodiment of the present application proposes a method for wireless communication. In this method, a first RO set corresponding to a first SSB is related to the load of a first area covered by the first SSB. Thus, the ROs corresponding to different SSBs can be adaptively adjusted based on the load of the relevant area. For example, when the load of the first area is low, there are relatively few ROs in the first RO set, thereby reducing the number of blind detection attempts by the network device and correspondingly reducing network energy consumption.

[0061] For ease of understanding, the following Figure 2 The method proposed in the embodiment of the present application is described in detail. Figure 2 It is introduced from the perspective of the interaction between the first terminal device and the network device.

[0062] See also Figure 2 In step S210, the first terminal device receives the first SSB sent by the network device.

[0063] The first terminal device may be any terminal device described above, such as a UE, and is not limited here. The network device may be any type of network device that communicates with the first terminal device. For example, the network device may be a base station.

[0064] In some embodiments, the first terminal device may be any terminal device in a first cell served by the network device. The first terminal device may communicate with the network device through resources in the first cell.

[0065] In some embodiments, the first terminal device may be a terminal device that receives the first SSB. For example, the first terminal device may be a UE that performs initial random access. In another example, the first terminal device may be a terminal device that synchronizes with the network device via the first SSB.

[0066] In some embodiments, the first terminal device may belong to a certain terminal device type. As an example, the terminal device type may include a first type that supports network energy saving. The type of the first terminal device may be the first type.

[0067] As an example, the first type may be a network energy saving (NES) type. When the type of the first terminal device is the first type, the first terminal device is a device that supports NES functionality. For example, in an NES cell, the first terminal device may support configurations of the network device or the first cell based on energy-saving requirements.

[0068] The service cell corresponding to the first terminal device is the first cell. In other words, the cell where the first terminal device is located is the first cell, or the first cell can provide services to the first terminal device through a network device.

[0069] The first SSB is one or more SSBs that can be received by the first terminal device. As mentioned above, the first SSB can represent the first synchronization signal block or the first synchronization signal / physical broadcast channel block.

[0070] As an example, when the first terminal device receives an SSB, the SSB is the first SSB; when the first terminal device receives multiple SSBs, the first SSB may be any one of the multiple SSBs, or may be part or all of the multiple SSBs.

[0071] In some embodiments, the first SSB is one of multiple SSBs sent by the network device. For example, when the two SSBs sent by the network device are SSB#1 and SSB#2, the first SSB can be SSB#1 or SSB#2. When the first SSB is SSB#1, the index of the first SSB is 1; when the first SSB is SSB#1, the index of the first SSB is 2.

[0072] As an example, the index of the first SSB may be a time index or a timing index of the SSB.

[0073] In some embodiments, the first SSB may be transmitted via the first beam. That is, the beam used to transmit the first SSB is the first beam. When the network device transmits multiple SSBs using multi-beam scanning, the multiple beams correspond to the multiple SSBs, respectively. The index of the first beam in the multiple beams corresponds to the index of the first SSB in the multiple SSBs. Therefore, the index of the first SSB is also referred to as the first SSB beam index.

[0074] The first SSB corresponds to the first area. In some embodiments, the first area may refer to the coverage area of ​​the first SSB, or the area where the first SSB can be received. That is, the terminal device within the first area can receive the first SSB.

[0075] As an example, the first area may be a specific geographical area, for example, the first area may be represented by longitude and latitude.

[0076] As an example, the first area may be a variable area. For example, the first area may change as the first beam changes.

[0077] As an example, the first terminal device is any terminal device in the first area, so that it can receive the first SSB.

[0078] In some embodiments, the first area may be one of multiple areas within the first cell. The network device may cover multiple areas within the first cell by transmitting multiple SSBs or multiple beams for transmitting multiple SSBs.

[0079] In some embodiments, the first area is related to the direction of the first beam. The direction of the first beam may also be referred to as a first SSB beam direction. Within a cycle, multiple beams transmitted by the network device correspond to multiple beam directions. The network device can cover multiple different areas within the service cell using multiple beam directions. Therefore, each beam direction can cover terminal devices in different areas.

[0080] As an example, the second SSB sent by the network device corresponds to the second area. The first area and the second area correspond to different directions respectively.

[0081] As an example, the first area may be an area covered by the first beam transmitting the first SSB.

[0082] In step S220, the first terminal device performs uplink transmission via the first RO set corresponding to the first SSB. Conversely, the network device may also receive uplink transmission sent by the first terminal device via the first RO set corresponding to the first SSB.

[0083] All ROs in the first RO set can be used for uplink transmission by the first terminal device. The uplink transmission may include transmission of an uplink channel or transmission of an uplink signal or message, which is not limited here.

[0084] As an example, the uplink channel may include a PRACH. The uplink signal may include an uplink reference signal or an uplink wake-up signal.

[0085] The first RO set may include one or more ROs. The one or more ROs correspond to one or more time-frequency resources for transmitting PRACH or RACH, respectively. As described above, configuring ROs may also be replaced by configuring PRACH resources or RACH resources. In other words, the network device configuring the corresponding RO for the SSB may indicate that the network device configures PRACH resources or RACH resources for the SSB. Therefore, the first RO set may also be referred to as the first PRACH resource set or the first RACH resource set.

[0086] In some embodiments, multiple ROs in the first RO set can be used for different types of terminal devices. For example, multiple ROs in the first RO set can be used for terminal devices that perform random access, or for terminal devices that perform system information requests, or for other terminal devices that perform uplink reference signals or uplink channel transmissions. For another example, multiple ROs in the first RO set can be used for traditional terminal devices, or for terminal devices that support NES functions. It can be seen that the first terminal device can be any type of communication device, and can also perform any type of uplink transmission through the first RO set.

[0087] In some embodiments, one or more ROs in the first RO set may be deployed in different resource pools. For example, when some ROs in the first RO set are used for random access, these ROs may be located in common resources for random access or in dedicated resources of the terminal device. For example, when some ROs in the first RO set are used for other purposes, the resource pools in which these ROs are located are different from the resource pools in which ROs traditionally used for random access are located.

[0088] As an example, the first RO set may include a second RO subset additionally added based on certain requirements. The ROs in the second RO subset are located in a resource pool configured for these requirements. For example, in an NES cell, a network device may be configured with an NES RO for sending uplink requests. The NES RO used by the terminal device to send uplink requests may be set in the first resource pool.

[0089] Exemplarily, additional PRACH resources can be set up in a resource pool, namely the first resource pool. The first resource pool can also be called an additional resource pool. In the first resource pool, each SSB index can share the additional PRACH resources equally, or the additional resources can be allocated according to certain allocation principles. For example, for SSB indexes with certain special uses (such as a specific NESSSB index), more additional PRACH resources may be required. Optionally, after the resources in the first resource pool are used up, the additional resources cannot be dynamically activated.

[0090] In some embodiments, the first RO set may include ROs configured in multiple ways. For example, the first RO set may include a dynamically configured first RO subset and / or a second RO subset, or a statically configured third RO subset. In this case, the network device semi-statically configures the multiple ROs in the first RO set. In other words, a portion of the random access resources in the first RO set is fixed, while another portion of the random access resources is adaptively adjusted based on actual communication conditions.

[0091] As an example, the dynamically configured first RO subset may include one or more dynamically configured ROs to facilitate adaptive adjustment.

[0092] As an example, the dynamically configured second RO subset may be additional PRACH resources configured for a terminal device with NES functionality. By separately configuring additional PRACH resources, ROs in the second RO subset can be dynamically activated / deactivated. For example, ROs in the second RO subset may be used to transmit PRACHs with a short periodicity. Dynamic activation / deactivation can be applicable to scenarios requiring a shorter RO periodicity.

[0093] As an example, the statically configured third RO subset may include all ROs conventionally used for random access.

[0094] In some embodiments, the first RO set may include only ROs configured in one manner. For example, the first RO set may include only one or more statically configured ROs. In this scenario, all random access resources corresponding to the first terminal device are indicated by static configuration. For another example, the first RO set may include only one or more dynamically configured ROs. In this scenario, all random access resources corresponding to the first terminal device are determined through adaptive or dynamic adjustment based on actual communication conditions.

[0095] In some embodiments, the multiple RO configurations included in the first RO set may have different periods. For example, the first RO set may include a dynamically configured second RO subset and a statically configured third RO subset. The periods of the ROs in the second RO subset are shorter than the periods of the ROs in the third RO subset. When the load in the first area is low, or when terminal devices only make random access requests, the first RO set may include only the statically configured third RO subset. When the load in the first area is high, or when terminal devices require relatively frequent ROs for access, dynamically activating the second RO subset can meet the needs of scenarios with high loads or shorter RO periods.

[0096] As an example, when the type of the first terminal device is the first type, the first RO set may include an additional second RO subset and a traditionally configured first RO subset. For example, to dynamically adjust the PRACH in the time domain, the first RO subset may be a set of default ROs (relatively sparse ROs) configured by the network device for traditional terminal devices, and the second RO subset may be a set of additional ROs (relatively dense ROs, referred to as NES ROs) configured by the network device for terminal devices with NES functionality. Thus, it can be seen that the period of the ROs in the relatively dense second RO subset is smaller than the period of the ROs in the relatively sparse first RO subset.

[0097] The first RO set corresponding to the first SSB can be a random access resource configured by the network device for the first SSB, or it can be a random access resource determined by the terminal device according to the configuration of the network device.

[0098] In some embodiments, the network device may send the first RO set to the first terminal device via first indication information. In other words, the network device sends the first indication information to the first terminal device, and the first terminal device determines the first RO set according to the first indication information.

[0099] As an example, the first indication information may be carried in one or more of the following information: downlink control information (DCI), system information block (SIB), system information (SI), and radio resource control (RRC). The SIB may include any SIB (SIBx) sent by the network device.

[0100] For example, for the adaptive adjustment strategy of random access resources, the network device may perform semi-static configuration via RRC or SIBx.

[0101] As an example, the first RO set corresponding to the first SSB can be indicated by a mapping relationship between SSB and RO. For example, a network device or a higher layer can indicate the first RO set corresponding to the first SSB through an SSB-To-RO mapping parameter. The SSB-To-RO mapping parameter is, for example, an SSB-perRACH opportunity.

[0102] The first RO set is related to the load of the first area. This may mean that some or all of the ROs in the first RO set are determined based on the load of the first area, or some or all of the ROs in the first RO set are determined based on parameters or information related to the load of the first area. In other words, the network device can adaptively adjust the first RO set based on the load of the first area.

[0103] In some embodiments, the first RO set is related to the load of the first area and may include one or more of the following: the number of ROs in the first RO set is related to the load of the first area; the preambles corresponding to the ROs in the first RO set are related to the load of the first area; the period of the ROs in the first RO set is related to the load of the first area.

[0104] As an example, when the number of ROs in the first RO set is related to the load of the first area, the network device or terminal device can adjust the number of ROs corresponding to the first SSB based on the load of the first area. For example, when the load of the first area is higher than the average of multiple areas in the first cell, the number of ROs in the first RO set is increased. When the load of the first area is lower than the average of multiple areas in the first cell, the number of ROs in the first RO set is reduced. This will be explained below in conjunction with request density.

[0105] As an example, when a network device allocates ROs to each SSB, different SSBs may correspond to different numbers of ROs based on the load. In other words, the purpose of adaptive PRACH transmission is to designate unequal amounts of PRACH resources for each SSB. For example, a second SSB transmitted by the network device may correspond to a second RO set. When the load of the second area is greater than that of the first area, the number of ROs in the second RO set is greater than the number of ROs in the first RO set.

[0106] As an example, when the preambles corresponding to the ROs in the first RO set are related to the load of the first region, each RO corresponding to each SSB can support an uneven number of preambles. The preamble can also be called a preamble code, and each preamble corresponds to a certain preamble code format. The preamble corresponding to the RO can refer to the preamble code or preamble code format transmitted by the RO, and can also refer to the number of preambles corresponding to the RO.

[0107] As an example, when the period of the RO in the first RO set is related to the load of the first area, the period of the RO in the first RO set can be adjusted according to the load. For example, when the load is high, the period of the RO can be relatively short. For another example, the PRACH resource includes ROs of different periods, and sparse RO is used when the load is low, and sparse RO and dense RO are used when the load is high. Figure 5 Provide explanation.

[0108] In some embodiments, the load of the first area may include the number of terminal devices requesting access in the first area and / or the type of terminal devices requesting access in the first area. Taking the number of terminal devices as an example, the spatial adaptation of the embodiment of the present application can appropriately optimize the number of ROs in each direction to match the number of terminal devices in the coverage area in each direction, thereby achieving network energy saving.

[0109] As an example, the number of terminal devices requesting access in the first area (eg, the number of UEs requesting access) may be used to determine the first value. The network device may determine the first RO set according to the first value.

[0110] Optionally, the first value may be a request density of the first area. For example, the first value may represent a request density of RACH in the first area.

[0111] For example, when the first SSB is sent through the nth beam (1≤n≤N, N represents the total number of beams), the first area is the area covered by the network device in the direction corresponding to the nth beam. n represents the number of terminal devices requesting access in the nth beam direction, then the RACH request density D in the first area is n for:

[0112] D n =R n / C.

[0113] Where C is an integer, which represents the number of ROs available for SSB in each beam direction, or the maximum number of RO resources.

[0114] In the current cycle, the average request density of all SSBs (corresponding beams) in the entire network (first cell) is

[0115] Optionally, the first value may also be the number of terminal devices, or the terminal device density related to the coverage area.

[0116] As an implementation method, the number of ROs in the first RO set can be determined based on an adjustment coefficient. The network device can implement adaptive adjustment of the first RO set using the adjustment coefficient α. The adjustment coefficient α can be used to represent the adjustment amount of the PRACH resource allocation on each SSB relative to the average request density of the entire network. For example, at time t, the number of ROs C′n′ in the first RO set corresponding to the first region is:

[0117]

[0118] Based on the above allocation strategy, the network device can dynamically adjust the number of ROs in each area according to the number of terminal devices in different areas.

[0119] As another implementation, the number of ROs in the first RO set may be determined based on the request density of the first area and the average request density of the first cell. Optionally, when the difference between the request density of the first area and the average request density of the first cell is greater than a resource threshold, the number of ROs in the first RO set is adjusted.

[0120] For example, whether the number of ROs in the first RO set is adjusted can be determined based on a resource threshold. That is, the resource threshold can be used to determine the PRACH resource allocation in the direction corresponding to each SSB. If the difference between the request density and the average request density in the direction corresponding to a certain SSB exceeds the resource threshold set by the threshold parameter, the resource allocation in that direction can be adjusted accordingly. If the difference is greater than the resource threshold, more resources are allocated; if the difference is less than the resource threshold, the existing resource allocation remains unchanged.

[0121] Set the resource threshold to the static threshold, the parameter is R target When the first SSB corresponding to the first terminal device is sent through the nth beam, its request density is D n , the average request density of the entire network is D avg , the difference is ΔD n =D n -D avg .

[0122] As an implementation approach, the resource allocation rules can be described as follows:

[0123] If ΔD n >R target , more resources are allocated to the direction corresponding to the first SSB. Optionally, the adjustment step size can be 1 RO. Optionally, one RO can be added in each adjustment cycle or at each moment;

[0124] If ΔD n <-R target , then reduce the resource allocation in the direction corresponding to the first SSB. Optionally, the adjustment step size can be 1 RO. Optionally, one RO can be reduced in each adjustment cycle or at each moment;

[0125] If -R target ≤ΔD n ≤R target , the resource allocation in the direction corresponding to the first SSB remains unchanged.

[0126] Based on the above allocation strategy, resource allocation can be adjusted according to the difference between the request density in the corresponding directions of different SSBs and the average request density of the entire network to achieve better system performance.

[0127] As an example, the type of terminal devices requesting access in the first area may include the first type mentioned above. When the first type is included, the network device may configure additional ROs according to the number of terminal devices of the first type.

[0128] For example, network devices can supplement energy-efficient periods by dynamically scheduling additional PRACH resources (e.g., PRACH preambles, RACH occasions). In this case, legacy terminal devices can continue to use RACH resources associated with the semi-statically configured periodicity, thereby avoiding any impact on legacy terminal devices. Terminal devices with NES capabilities can use PRACH configurations with extended periods and additional RO resources. For example, each SSB can support a different number of ROs, and each RO corresponding to each SSB can also support adaptation to an uneven number of preambles.

[0129] In some embodiments, the first RO set is related to the load of the first area, which may include: whether the first RO set includes one or more dynamically configured ROs is related to the load of the first area. Therefore, based on the load of the first area, the network device or the first terminal device can implement adaptive adjustment of the first RO set using one or more dynamically configured ROs.

[0130] As an example, the one or more dynamically configured ROs may include a dynamically configured first RO subset. When the first RO set includes the first RO subset, the second PRACH configuration index corresponding to the first RO subset is related to the first PRACH configuration index corresponding to the first RO set. The PRACH resources in the second PRACH configuration index are a subset of the PRACH resources in the first PRACH configuration index.

[0131] For example, the ROs in the first RO subset can also be used for PRACHs independent of the legacy PRACH configuration and are therefore also referred to as additional PRACH resources. The additional PRACH resources are a subset of the resources corresponding to the SSB index actually transmitted. The gNB configures a PRACH resource pool, with different SSB indices corresponding to different ROs or RO groups. The additional PRACH resources are a subset of these ROs or RO groups.

[0132] As an example, the dynamically configured one or more ROs may include an additional second RO subset. The second RO subset is set in the first resource pool based on the type of the first terminal device. The second RO subset associated with the first terminal device type can be a separate PRACH resource configured by the network device, or it can be an unused PRACH resource that is repurposed. In this scenario, the first SSB can be mapped to a new RACH resource for spatial adaptation purposes. Compared with other SSBs, the resources corresponding to the first SSB are associated with more ROs. In such an adaptive technology, energy saving gains can be achieved when the periodicity of the RO is dynamically changed or flexibly changed.

[0133] Exemplarily, when configuring a separate PRACH resource, the network device may indicate it through a separate configuration index, or by configuring a separate mask index on top of a traditional configuration index.

[0134] For example, the repurposed PRACH resources may include ROs that are determined not to be used, for example, ROs that are not associated with SSBs, or ROs that are indicated as corresponding to SSBs that are not actually transmitted.

[0135] As an example, when the load of the first area is large (the number of terminal devices requesting access is large), the first RO set includes one or more dynamically configured ROs. Otherwise, the first RO set does not include one or more dynamically configured ROs.

[0136] For example, when the first value is lower than a first threshold, the first RO set does not include one or more dynamically configured ROs; when the first value is higher than or equal to the first threshold, the first RO set includes one or more dynamically configured ROs. When the first value is related to request density, the first threshold may be the resource threshold described above.

[0137] As an example, when the type of the terminal device requesting access to the first area includes the first type, the first RO set includes one or more dynamically configured ROs. Otherwise, the first RO set does not include one or more dynamically configured ROs.

[0138] In some embodiments, the first RO set can also be determined based on one or more of the following information: the service type of the first terminal device; the load of the first cell where the first terminal device is located; the location information of the first terminal device; the channel quality of the first terminal device; the resource threshold within the first area; and the number of ROs available in the first area.

[0139] As an example, the service type of the first terminal device may reflect the limited nature or urgency of the service. Optionally, the terminal device may adaptively adjust the first RO set according to its own service type.

[0140] As an example, the load of the first cell where the first terminal device is located may reflect the total number of ROs that the network device needs to allocate. The load of the first cell includes loads in multiple areas, so the load of the first cell includes the load of the first area.

[0141] As an example, the location information of the first terminal device may represent the distance information between the first terminal device and the network device.

[0142] As an example, the channel quality of the first terminal device can be represented by parameters such as signal strength, such as reference signal received power (RSRP) and signal to noise ratio (SNR).

[0143] As an example, the resource threshold in the first region is, for example, the R target .

[0144] As an example, the number of ROs available in the first area may indicate the maximum number of ROs in the first area.

[0145] As an implementation manner, the network device may determine the first RO set based on conditions such as the number of terminal devices requesting access to the first area, the limitedness or urgency of terminal device services, and cell load, thereby instructing activation or deactivation of additional ROs.

[0146] For example, the network device may determine the first RO set based on the location, channel quality, and cell load of the first terminal device. In other words, the PRACH resource allocation strategy may be determined based on the location, channel quality, and cell load of the terminal device, as follows.

[0147] Assume that the network device is network device i (base station i), and the first terminal device is terminal device j (UE j ), the corresponding first SSB is SSB j Let P i,j Indicates that base station i is assigned to SSB j The corresponding PRACH RO number (the number of ROs in the first RO set), d i,j Indicates the location information of the first terminal device, signal-to-noise ratio SNR i,j As an evaluation indicator of channel quality. Load L i It is related to the load of base station i at the current moment. Taking the above factors into consideration, we can get the number of nodes allocated to UE by base station i. j The amount of resources P i,j for:

[0148]

[0149] Among them, P max Indicates the maximum number of ROs available for network devices, d i,j Indicates the distance between the first terminal device and the network device, d max Indicates the maximum distance between the network device and the first area, SNR i,j Indicates the channel quality between the first terminal device and the network device, SNR tarhetIndicates the target channel quality, L i Indicates the load of the first cell at the current moment, L max represents the maximum load of the first cell, α, β, and γ represent weight factors, and α+β+γ=1.

[0150] Optionally, α, β, and γ are weight factors of the three factors of the terminal device location, channel quality, and cell load, respectively. The values ​​of the weight factors can be adjusted according to actual conditions.

[0151] The model using the above formula combines factors such as location information, channel quality, and system load, and can more accurately and dynamically adjust the allocation relationship between SSB and RO, thereby minimizing contention and collision and optimizing system performance.

[0152] In some embodiments, the network device or terminal device may also adaptively adjust the first RO set based on artificial intelligence. As an example, the network device may determine the first RO set corresponding to the first SSB based on a machine learning resource allocation algorithm. For example, a machine learning algorithm may be used to analyze historical and real-time data to predict PRACH resource requirements under different locations or channel conditions and allocate resources accordingly. This approach allows for more refined optimization based on actual conditions.

[0153] Combined with the above Figure 2 The first RO set used by a first terminal device for uplink transmission is related to the load of the first area. When a network device performs adaptive adjustments based on the load, this can be indicated using first indication information. When a terminal device performs adaptive adjustments based on the load, the terminal device also needs to send the dynamically adjusted first RO set to the network device to avoid unnecessary blind detection by the network device. Furthermore, how the network device or terminal device dynamically configures the ROs in the first RO set becomes an issue that needs to be considered.

[0154] In some embodiments, the network device can determine the load in different areas through sensing or other means. For example, the gNB may be aware that there are a significant number of terminal devices in the beam direction corresponding to a particular SSB. In this scenario, the network device can provide PRACH resources (RO sets) corresponding to the beam index.

[0155] In some embodiments, a terminal device may request more resources from a network device. For example, a first terminal device may send a first request message to a network device. The first request message is used by the terminal device to request random access resources. If the first request message requests more RACH resources corresponding to a specific SSB beam index, the network device may provide additional RACH resources corresponding to that SSB beam index.

[0156] In some embodiments, whether the network device perceives it on its own or based on the request of the terminal device, the network device can adjust the random access resources according to each beam index. This adaptation can achieve network energy saving by appropriately optimizing the number of ROs in each direction that matches the load of each area. For example, the index of the first SSB is SSB#1, and the index of the second SSB is SSB#2. At time t1, the number of terminal devices corresponding to SSB#1 may be less than the number of terminal devices at time t2. In this case, more ROs associated with SSB#1 can be allocated at time t2. If the number of terminal devices corresponding to SSB#2 is the same at time t1 and time t2, the RO associated with SSB#2 can remain unchanged at t2.

[0157] As an example, the network device may compare the number of terminal devices corresponding to different SSB indexes to balance or appropriately optimize the number of ROs in different areas, thereby achieving network energy saving.

[0158] As an example, since ROs may be non-uniformly mapped to each SSB, the first terminal device may consider additional terminal device behaviors when selecting a RO during the random access procedure. For example, the first terminal device may select the SSB beam index with the most ROs among the SSB beam indices that meet a criterion (e.g., an RSRP threshold).

[0159] As an example, the network device may configure a time / frequency offset for a conventional RO to allocate an additional RO for a specific SSB beam index.

[0160] In the above example, the additionally configured RO or more ROs may include one or more dynamically configured ROs. That is, when the network device additionally configures ROs, the states of these ROs are not fixed but can be dynamically adjusted according to the load.

[0161] In some embodiments, one or more dynamically configured ROs may be activated or deactivated to determine whether the first RO set includes these ROs. For example, any RO in the first RO subset may be dynamically configured by activation or deactivation to ensure that the first RO set includes the first RO subset or does not include the first RO subset.

[0162] As an example, the network device may indicate whether the additional PRACH resource is activated or deactivated through DCI, SIB, SI, RRC message, etc. For example, the first indication information may indicate whether the first RO set includes one or more dynamically configured ROs. When the additional PRACH resource is activated, the first RO set includes one or more dynamically configured ROs. When the additional PRACH resource is deactivated, the first RO set does not include one or more dynamically configured ROs.

[0163] Exemplarily, PRACH adaptation and additional PRACH resources may be semi-statically configured via RRC or SIBx. For example, in the first cell where the first terminal device resides, the network device may provide an activation / deactivation indication of the additional PRACH resources in SIB1. For example, for PRACH in a secondary cell (Scell), the network device may provide an activation / deactivation indication of the additional PRACH resources via RRC.

[0164] Exemplarily, if the reserved bit is available, the network device may indicate activation / deactivation via paging DCI or DCI format 2_7.

[0165] Exemplarily, the network device may indicate activation / deactivation of the RO through the SI in the next SI modification period.

[0166] As an example, under low load conditions, NES-capable terminal devices may at least use legacy resources. Under high load conditions, additional PRACH resources may be activated in terminal devices in connected mode via layer 1 (L1) signaling; for NES-capable terminal devices in idle / inactive mode, additional PRACH resources may be indicated via SIBx.

[0167] As an example, in time division duplex (TDD) mode, when the load increases, the RO can be increased based on the time division (TD) adaptive method. Figure 6 An exemplary description is given.

[0168] In some embodiments, one or more ROs can be activated / deactivated by triggering, setting a timer, or other methods. For example, when the network maintains activation / deactivation, the last activation or deactivation configuration can be delayed until the network indicates another explicit deactivation / activation. For another example, the activation / deactivation configuration of the RO can be completed within a set time, that is, a timer is set to complete the activation / deactivation configuration.

[0169] In some embodiments, the network device (e.g., gNB) can dynamically disable / enable additional ROs (additional PRACH resources). When the additional RO is an NES RO, the default RO and the additional RO can be associated with SSBs respectively, and each association can follow the traditional method.

[0170] As an example, the NES RO is deactivated and all terminal devices (including legacy UEs and NES UEs) can only use the default RO. In situations such as large access delays and congestion, the default RO may be insufficient. In this case, the network device can directly provide additional NES ROs for use by the NES UE or request the configuration of additional NES ROs based on the needs of the NES UE.

[0171] In some embodiments, the activation or deactivation time of the additional RO may be determined based on the reception time of the configuration indication. For example, the activation or deactivation time of any RO in the second RO subset may be determined based on the reception time of the activation or deactivation configuration indication and the first time parameter.

[0172] Optionally, the activation configuration or deactivation configuration of any RO in the second RO subset is determined according to the time of receiving the indication information of these configurations. For example, the effective time of the activation configuration or deactivation configuration of any RO is determined according to the time of receiving the resource configuration information.

[0173] Optionally, the activation / deactivation configuration of any RO in the second RO subset is determined according to the reception time of the configuration indication information and the first time parameter. For example, the configuration effectiveness time of any RO is determined according to the reception time of the resource configuration information and the first time parameter.

[0174] As an example, the first time parameter may be a time period T. This time period T may be a predefined time period or may be directly indicated in a preconfigured plurality of candidates. For example, an RO indicated as activated is considered to be available after the time period T from the time the configuration indication is received. As an example, the first time parameter may be a time period associated with a mode or service type. For example, an activated RO may take effect starting from the associated time period after the time indicated by the configuration.

[0175] As an example, after the ROs in the second RO subset are deactivated or deactivated, all terminal devices can only use the default RO. All terminal devices may include traditional terminal devices and terminal devices supporting the NES function. In the case of large access delays or congestion, the number of default ROs may be insufficient. In this case, the base station can provide additional NES ROs for use by terminal devices supporting the NES function. Alternatively, terminal devices supporting the NES function can also send requests to the base station as needed.

[0176] In some embodiments, a network device may determine resource allocation policies for multiple regions and indicate these policies to terminal devices in different regions. As an example, a first terminal device receives first indication information sent by the network device. The first terminal device may determine whether the first RO set includes one or more dynamically configured ROs based on the first indication information.

[0177] As an example, the first indication information can be determined based on the results of a machine learning model.

[0178] In some embodiments, network equipment can detect differences in load from different directions. In this way, the gNB can reduce the number of blind detection attempts in areas where the number of UEs is estimated to be low, thereby reducing the network energy consumed accordingly. For example, the gNB can detect that the load from certain specific directions is lower than the load from certain other directions. In this scenario, when the first RO set is related to the load, the SSBs corresponding to these low-load areas can be associated with fewer RACH resources than those in other directions. Although estimating the amount of RACH transmissions is not very accurate, it is beneficial for the gNB to have such flexibility to adapt the RACH resources associated with each SSB as load analysis or other techniques (e.g., sensing) develop.

[0179] As an example, the base station can autonomously adjust the first RO set. The gNB can determine that the RACH requests from certain directions (i.e., associated SSBs) are not as frequent as those from other directions, and then change the RO / preamble resources corresponding to each SSB.

[0180] In some embodiments, the terminal device may adjust the number of ROs in the direction corresponding to each SSB according to load and other factors, and update corresponding configuration parameters, such as ROOT sequence index, preamble configuration, etc.

[0181] In some embodiments, the network device may set a dynamic adjustment period T, and adjust the number of ROs corresponding to the SSB every T periods.

[0182] In some embodiments, the network device can dynamically adjust the resource allocation of PRACH ROs in each SSB direction based on the current SSB load conditions. In order to allocate a non-uniform number of ROs to each SSB, different SSB-to-RO mapping parameters can be configured for different SSB indices (groups).

[0183] In some embodiments, a network device may be configured semi-statically using two or more PRACH configuration indices. Through semi-static configuration, the network device may provide PRACH configurations for R19 NES-capable terminal devices. Optionally, both or more configuration indices may correspond to the same preamble format.

[0184] In some embodiments, the network device can adjust PRACH resources based on the adjustment of SSBs and load. When the network device detects that the load from certain specific directions is lower than the load from certain other directions, the SSBs corresponding to these specific directions can be associated with fewer RACH resources than those in other directions. In this way, the network device can reduce the number of blind detection attempts in areas where the number of terminal devices is estimated to be low, thereby reducing the network energy consumed accordingly.

[0185] As an example, when the SSB period is long, more ROs are configured; when the SSB period is short, fewer ROs are configured. In this scenario, random access resources can be guaranteed through RO configuration when the SSB is dynamically configured.

[0186] For example, when the SSB period is long, fewer ROs are configured; when the SSB period is short, more ROs are configured. In this scenario, dynamic SSB configuration can be used to further reduce blind detection of network devices and achieve network energy conservation.

[0187] For ease of understanding, the following Figures 3 to 6 , an exemplary description is given of whether the first RO set includes one or more dynamically configured ROs, and a dynamic configuration method of one or more ROs. Figure 3 and Figure 4 Used to indicate the dynamic configuration of RO corresponding to different SSBs. Figure 5 Used to indicate the activation method of dense RO. Figure 6 Used to indicate RO added based on TD adaptiveness.

[0188] See also Figure 3 In the time-frequency domain, the network device configures ROs for SSB0 and SSB1, respectively. ROs with different fill patterns are associated with different SSB indices or RO subsets. The ROs corresponding to SSB0 (ROs mapped to SSB0) include ROs 302 and RO 304, and the ROs corresponding to SSB1 (ROs mapped to SSB1) include ROs 312 and RO 314. RO 302 is the third statically configured RO subset corresponding to SSB0, and RO 304 is the first dynamically configured RO subset corresponding to SSB0. Accordingly, RO 312 is the third statically configured RO subset corresponding to SSB1, and RO 314 is the first dynamically configured RO subset corresponding to SSB1. Figure 3 The first RO subset in the RO can be determined to be in an activated or deactivated state based on the indication. The activation / deactivation of the first RO subset can be used dynamically. Figure 3It can be seen that the statically configured RO and the dynamically configured RO of SSB1 and SSB0 are different.

[0189] For SSB0, the three ROs in RO 302 remain fixed regardless of load changes. When the load in the area corresponding to SSB0 increases, two ROs in RO 304 can be activated; when the load in the area corresponding to SSB0 decreases, the two ROs in RO 304 can be deactivated, thereby achieving dynamic adjustment of the ROs corresponding to SSB0.

[0190] For SSB1, regardless of load changes, the two ROs in RO 312 remain fixed. When the load in the area corresponding to SSB1 increases, one of the ROs in RO 314 can be activated; when the load in the area corresponding to SSB1 decreases, one of the ROs in RO 314 can be deactivated, thereby achieving dynamic adjustment of the ROs corresponding to SSB1.

[0191] See also Figure 4 In the time-frequency domain, the network device configures ROs for SSB0 and SSB1, respectively. ROs with different fill patterns are associated with different SSB indices. ROs corresponding to SSB0 include ROs 402 and 404, and ROs corresponding to SSB1 include RO 412. ROs 402 and 412 are statically configured ROs for SSB9 and SSB1, respectively, while RO 404 is an additional RO configured by the network device for SSB0 (an additional RO mapped to SSB0). Therefore, RO 404 can be an additional second RO subset. SSB1 does not have any additional ROs.

[0192] For SSB0, the three ROs in RO 402 remain fixed regardless of load changes. When the load in the area corresponding to SSB0 increases, the two additional ROs in RO 404 can be activated. When the load in the area corresponding to SSB0 decreases, the two ROs in RO 404 can be deactivated, thereby achieving dynamic adjustment of the ROs corresponding to SSB0.

[0193] For SSB1, no matter how the load changes, the RO in RO 412 is fixed and will not be dynamically adjusted.

[0194] Optionally, through SIBx, DCI or RRC signaling, the RO corresponding to SSB0 is increased by 2, and the RO corresponding to SSB1 remains unchanged.

[0195] See also Figure 5In the time-frequency domain, the network device is configured with sparse RO and dense RO. The two filling patterns represent the configuration of sparse RO and dense RO respectively. The solid line indicates that the RO is in the active state, and the dotted line indicates that the RO is in the inactive state. Figure 5 As can be seen, within each sparse RO cycle, there is one set of statically configured sparse ROs and two sets of dynamically configured dense ROs. Typically, dense ROs are inactive, thereby reducing blind detection by network devices. When the load within the first area increases, or when the terminal device types within the first area include the first type, the network device can activate dense ROs (activation DCI of dense ROs) via DCI 510.

[0196] like Figure 5 As shown, the dense RO in the first and second sparse RO periods is deactivated (deactivated denseRO). After the first terminal device receives DCI in the second sparse RO period, the dense RO in the third and fourth sparse RO periods is activated.

[0197] Figure 6 Taking frequency range 1 (FR1), TDD mode, and PRACH config17 format as an example, an embodiment of TD-based adaptive adjustment of RO is shown. Figure 6 In this format, 8 SSBs are sent in 2ms. 2ms after the SSB is sent, there is a RO (RO 0), followed by 8 SIBs and another RO (RO 1).

[0198] like Figure 6 As shown, the four ROs (ROs 0-3) before adjustment are statically configured. To implement time-domain PRACH adaptation, network devices can add additional ROs based on TD adaptation. That is, when the load increases, two ROs (RO 0 and RO 1 added after adjustment) are adaptively added.

[0199] Combined with the above Figures 1 to 6 , describes the method embodiment of the present application in detail. Figures 7 to 9 , the device embodiment of the present application is described in detail. It should be understood that the description of the device embodiment corresponds to the description of the method embodiment, so for parts not described in detail, reference can be made to the previous method embodiment.

[0200] Figure 7700 is a schematic block diagram of an apparatus for wireless communication according to an embodiment of the present application. The apparatus 700 may be any of the first terminal devices described above. Figure 7 The illustrated apparatus 700 includes a receiving unit 710 and a sending unit 720 .

[0201] The receiving unit 710 may be configured to receive a first SSB sent by a network device.

[0202] The sending unit 720 can be used to perform uplink transmission through the first RO set corresponding to the first SSB; wherein the first SSB corresponds to the first area, and the first RO set is related to the load of the first area.

[0203] Optionally, the first RO set is related to the load of the first area, including: whether the first RO set includes one or more dynamically configured ROs is related to the load of the first area.

[0204] Optionally, the one or more dynamically configured ROs include a first RO subset, and any RO in the first RO subset is dynamically configured by activation or deactivation.

[0205] Optionally, the dynamically configured one or more ROs include an additional second RO subset, and the second RO subset is set in the first resource pool based on the type of the first terminal device.

[0206] Optionally, the receiving unit 710 is further configured to receive first indication information sent by the network device; the apparatus 700 further includes a determining unit configured to determine whether the first RO set includes one or more dynamically configured ROs according to the first indication information.

[0207] Optionally, the first indication information is determined based on the results of a machine learning model.

[0208] Optionally, the first indication information is carried in one or more of the following information: DCI, SIB, SI and RRC.

[0209] Optionally, the load of the first area includes the number of terminal devices requesting access in the first area and / or the type of terminal devices requesting access in the first area.

[0210] Optionally, the number of terminal devices is used to determine a first value. When the first value is lower than a first threshold, the first RO set does not include one or more dynamically configured ROs; when the first value is higher than or equal to the first threshold, the first RO set includes one or more dynamically configured ROs.

[0211] Optionally, the terminal device type includes a first type supporting network energy saving. When the type of the first terminal device is the first type, the first RO set includes an additional second RO subset.

[0212] Optionally, the first RO set includes a statically configured third RO subset, and the period of the ROs in the second RO subset is smaller than the period of the ROs in the third RO subset.

[0213] Optionally, the activation or deactivation time of any RO in the second RO subset is determined according to the reception time of the activation or deactivation configuration indication and the first time parameter.

[0214] Optionally, the first RO set is related to the load of the first area, and further includes one or more of the following: the number of ROs in the first RO set is related to the load of the first area; and the cycle of the ROs in the first RO set is related to the load of the first area.

[0215] Optionally, the second SSB sent by the network device corresponds to a second RO set, the second SSB corresponds to a second area, and when the load of the second area is greater than the load of the first area, the number of ROs in the second RO set is greater than the number of ROs in the first RO set.

[0216] Optionally, the first RO set is also determined based on one or more of the following information: the service type of the first terminal device; the load of the first cell where the first terminal device is located; the location information of the first terminal device; the channel quality of the first terminal device; the resource threshold within the first area; and the number of ROs available within the first area.

[0217] Optionally, the load of the first cell includes the load of the first area, the network device is network device i, the first terminal device is terminal device j, and the number of ROs in the first RO set P is i,j for:

[0218]

[0219] Among them, p max Indicates the maximum number of ROs available for network devices, d i,j Indicates the distance between the first terminal device and the network device, d max Indicates the maximum distance between the network device and the first area, SNR i,j Indicates the channel quality between the first terminal device and the network device, SNR target Indicates the target channel quality, L i Indicates the load of the first cell at the current moment, L max represents the maximum load of the first cell, α, β, and γ represent weight factors, and α+β+γ=1.

[0220] Optionally, the load of the first area is the number of terminal devices, and when the difference between the request density of the first area and the average request density of the first cell is greater than a resource threshold, the number of ROs in the first RO set is adjusted.

[0221] Optionally, the first SSB is sent through a first beam, and the first area is an area covered by the first beam.

[0222] Figure 8 FIG. 8 is a schematic block diagram of another apparatus for wireless communication according to an embodiment of the present application. The apparatus 800 may be any of the network devices described above. Figure 8 The illustrated apparatus 800 includes a sending unit 810 and a receiving unit 820 .

[0223] The sending unit 810 can be used to send the first SSB to the first terminal device;.

[0224] The receiving unit 820 may be configured to receive uplink transmission via a first RO set corresponding to a first SSB; wherein the first SSB corresponds to a first region, and the first RO set is related to a load of the first region.

[0225] Optionally, the first RO set is related to the load of the first area, including: whether the first RO set includes one or more dynamically configured ROs is related to the load of the first area.

[0226] Optionally, the one or more dynamically configured ROs include a first RO subset, and any RO in the first RO subset is dynamically configured by activation or deactivation.

[0227] Optionally, the dynamically configured one or more ROs include an additional second RO subset, and the second RO subset is set in the first resource pool based on the type of the first terminal device.

[0228] Optionally, the sending unit 810 is further configured to send first indication information to the first terminal device, where the first indication information is used to indicate whether the first RO set includes one or more dynamically configured ROs.

[0229] Optionally, the first indication information is determined based on the results of a machine learning model.

[0230] Optionally, the first indication information is carried in one or more of the following information: DCI, SIB, SI and RRC.

[0231] Optionally, the load of the first area includes the number of terminal devices requesting access in the first area and / or the type of terminal devices requesting access in the first area.

[0232] Optionally, the number of terminal devices is used to determine a first value. When the first value is lower than a first threshold, the first RO set does not include one or more dynamically configured ROs; when the first value is higher than or equal to the first threshold, the first RO set includes one or more dynamically configured ROs.

[0233] Optionally, the terminal device type includes a first type supporting network energy saving. When the type of the first terminal device is the first type, the first RO set includes an additional second RO subset.

[0234] Optionally, the first RO set includes a statically configured third RO subset, and the period of the ROs in the second RO subset is smaller than the period of the ROs in the third RO subset.

[0235] Optionally, the activation or deactivation time of any RO in the second RO subset is determined according to the reception time of the activation or deactivation configuration indication and the first time parameter.

[0236] Optionally, the first RO set is related to the load of the first area, and further includes one or more of the following: the number of ROs in the first RO set is related to the load of the first area; and the cycle of the ROs in the first RO set is related to the load of the first area.

[0237] Optionally, the second SSB sent by the network device corresponds to a second RO set, the second SSB corresponds to a second area, and when the load of the second area is greater than the load of the first area, the number of ROs in the second RO set is greater than the number of ROs in the first RO set.

[0238] Optionally, the first RO set is also determined based on one or more of the following information: the service type of the first terminal device; the load of the first cell where the first terminal device is located; the location information of the first terminal device; the channel quality of the first terminal device; the resource threshold within the first area; and the number of ROs available within the first area.

[0239] Optionally, the load of the first cell includes the load of the first area, the network device is network device i, the first terminal device is terminal device j, and the number of ROs in the first RO set is p. i,j for:

[0240]

[0241] Among them, p max Indicates the maximum number of ROs available for network devices, d i,j Indicates the distance between the first terminal device and the network device, d max Indicates the maximum distance between the network device and the first area, SNR i,j Indicates the channel quality between the first terminal device and the network device, SNR target Indicates the target channel quality, L i Indicates the load of the first cell at the current moment, L max represents the maximum load of the first cell, α, β, and γ represent weight factors, and α+β+γ=1.

[0242] Optionally, the load of the first area is the number of terminal devices, and when the difference between the request density of the first area and the average request density of the first cell is greater than a resource threshold, the number of ROs in the first RO set is adjusted.

[0243] Optionally, the first SSB is sent through a first beam, and the first area is an area covered by the first beam.

[0244] Figure 9 Shown is a schematic structural diagram of a communication device according to an embodiment of the present application. Figure 9 The dotted line in the figure indicates that the unit or module is optional. The apparatus 900 can be used to implement the method described in the above method embodiment. The apparatus 900 can be a chip, a terminal device or a network device.

[0245] The device 900 may include one or more processors 910. The processor 910 may support the device 900 to implement the method described in the above method embodiment. The processor 910 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor may be another general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc. The general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.

[0246] The apparatus 900 may further include one or more memories 920. The memories 920 store programs that can be executed by the processor 910, causing the processor 910 to perform the methods described in the above method embodiments. The memories 920 may be independent of the processor 910 or integrated into the processor 910.

[0247] The apparatus 900 may further include a transceiver 930. The processor 910 may communicate with other devices or chips via the transceiver 930. For example, the processor 910 may transmit and receive data with other devices or chips via the transceiver 930.

[0248] The present application also provides a computer-readable storage medium for storing a program. The computer-readable storage medium can be applied to a terminal device or network device provided in the present application, and the program enables a computer to execute the method performed by the terminal device or network device in each embodiment of the present application.

[0249] The computer-readable storage medium may be any available medium that can be read by a computer or a data storage device such as a server or data center that includes one or more available media. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, or a magnetic tape), an optical medium (e.g., a digital versatile disc (DVD)), or a semiconductor medium (e.g., a solid state drive (SSD)).

[0250] The present application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to a terminal device or network device provided in the present application, and the program causes a computer to execute the method performed by the terminal device or network device in each embodiment of the present application.

[0251] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center via wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means.

[0252] The present application also provides a computer program that can be applied to a terminal device or network device provided in the present application, and enables a computer to execute the method performed by the terminal or network device in each embodiment of the present application.

[0253] The terms "system" and "network" in this application may be used interchangeably. In addition, the terms used in this application are only used to explain the specific embodiments of this application and are not intended to limit this application. The terms "first," "second," "third," and "fourth" in the specification and claims of this application and the accompanying drawings are used to distinguish different objects rather than to describe a specific order. In addition, the terms "including" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

[0254] In the embodiments of this application, the term "indication" may refer to a direct indication, an indirect indication, or an indication of an association. For example, "A indicates B" may refer to a direct indication of B, e.g., B can obtain information through A; it may refer to an indirect indication of B, e.g., A indicates C, e.g., B can obtain information through C; or it may refer to an association between A and B.

[0255] In the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and indication, configuration and configuration, etc.

[0256] In the embodiments of the present application, "pre-definition" or "pre-configuration" may be implemented by pre-storing corresponding codes, tables, or other methods that can be used to indicate relevant information in a device (e.g., including a terminal device and a network device). The present application does not limit the specific implementation method. For example, pre-definition may refer to a definition in a protocol.

[0257] In the embodiments of the present application, the "protocol" may refer to a standard protocol in the communication field, for example, it may include an LTE protocol, a NR protocol, and related protocols used in future communication systems, and this application does not limit this.

[0258] In the embodiments of the present application, determining B based on A does not mean determining B only based on A. B can also be determined based on A and / or other information.

[0259] In the embodiments of this application, the term "and / or" is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0260] In the embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0261] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0262] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0263] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0264] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A method for wireless communication, characterized in that include: The first terminal device receives a first synchronization signal block SSB sent by the network device, where the first SSB corresponds to a first random access channel opportunity RO set; The first terminal device adjusts the first RO set according to its own service type; The first terminal device notifies the network device of the adjusted first RO set; The first terminal device performs uplink transmission through the adjusted first RO set; Among them, the first SSB corresponds to the first area, the first RO set is related to the load of the first area, the first terminal device is a terminal device with a network energy saving NES function, the first RO set includes an additional second RO subset, and the second RO subset is a physical random access channel PRACH resource additionally configured for the terminal device with the NES function, and the uplink transmission includes the transmission of an uplink wake-up signal.

2. The method according to claim 1, characterized in that The first RO set is related to the load of the first area, including: whether the first RO set includes one or more dynamically configured ROs is related to the load of the first area.

3. The method according to claim 2, characterized in that The one or more dynamically configured ROs include a first RO subset, and any RO in the first RO subset is dynamically configured by activation or deactivation.

4. The method according to claim 2, characterized in that The dynamically configured one or more ROs include an additional second RO subset, and the second RO subset is set in a first resource pool based on a type of the first terminal device.

5. The method according to claim 2, characterized in that The method further comprises: The first terminal device receives the first indication information sent by the network device; The first terminal device determines, according to the first indication information, whether the first RO set includes the one or more dynamically configured ROs.

6. The method according to claim 5, characterized in that The first indication information is determined based on a result of a machine learning model.

7. The method according to claim 5, characterized in that The first indication information is carried in one or more of the following information: downlink control information DCI, system information block SIB, system information SI and radio resource control RRC.

8. The method according to any one of claims 1 to 7, characterized in that The load of the first area includes the number of terminal devices requesting access in the first area and / or the type of terminal devices requesting access in the first area.

9. The method according to claim 8, characterized in that The number of terminal devices is used to determine a first value. When the first value is lower than a first threshold, the first RO set does not include one or more dynamically configured ROs; when the first value is higher than or equal to the first threshold, the first RO set includes one or more dynamically configured ROs.

10. The method according to any one of claims 1 to 7, characterized in that The first RO set further includes a statically configured third RO subset, and the period of the ROs in the second RO subset is smaller than the period of the ROs in the third RO subset.

11. The method according to any one of claims 1 to 7, characterized in that The activation or deactivation time of any RO in the second RO subset is determined according to the reception time of the activation or deactivation configuration indication and the first time parameter.

12. The method according to any one of claims 1 to 7, characterized in that The first RO set is related to the load of the first area and further includes one or more of the following: The number of ROs in the first RO set is related to the load of the first area; The period of the ROs in the first RO set is related to the load of the first area.

13. The method according to claim 12, characterized in that The second SSB sent by the network device corresponds to a second RO set, and the second SSB corresponds to a second area. When the load of the second area is greater than the load of the first area, the number of ROs in the second RO set is greater than the number of ROs in the first RO set.

14. The method according to any one of claims 1 to 7, characterized in that The first RO set is further determined based on one or more of the following information: a load of the first cell where the first terminal device is located; location information of the first terminal device; channel quality of the first terminal device; A resource threshold within the first region; and The number of ROs available in the first area.

15. The method according to claim 14, characterized in that The load of the first cell includes the load of the first area, the network device is network device i, the first terminal device is terminal device j, and the number of ROs in the first RO set P i,j for: Among them, P max Indicates the maximum number of ROs available for the network device, d i,j represents the distance between the first terminal device and the network device, d max represents the maximum distance between the network device and the first area, represents the channel quality between the first terminal device and the network device, Indicates the target channel quality, L i represents the load of the first cell at the current moment, L max represents the maximum load of the first cell, α, β, and γ represent weight factors, and α+β+γ=1.

16. The method according to claim 14, characterized in that The load of the first area is the number of terminal devices. When the difference between the request density of the first area and the average request density of the first cell is greater than the resource threshold, the number of ROs in the first RO set is adjusted.

17. The method according to any one of claims 1 to 7, characterized in that The first SSB is sent through a first beam, and the first area is the area covered by the first beam.

18. A method for wireless communication, characterized in that: include: The network device sends a first synchronization signal block SSB to the first terminal device, where the first SSB corresponds to a first random access channel opportunity RO set, and the first RO set is adjusted by the first terminal device according to its own service type; Determining, by the network device, the first RO set adjusted by the first terminal device; The network device receives uplink transmission through the adjusted first RO set; Among them, the first SSB corresponds to the first area, the first RO set is related to the load of the first area, the first terminal device is a terminal device with a network energy saving NES function, the first RO set includes an additional second RO subset, and the second RO subset is a physical random access channel PRACH resource additionally configured for the terminal device with the NES function, and the uplink transmission includes the transmission of an uplink wake-up signal.

19. The method according to claim 18, characterized in that The first RO set is related to the load of the first area, including: whether the first RO set includes one or more dynamically configured ROs is related to the load of the first area.

20. The method according to claim 19, characterized in that The one or more dynamically configured ROs include a first RO subset, and any RO in the first RO subset is dynamically configured by activation or deactivation.

21. The method according to claim 19, wherein The dynamically configured one or more ROs include an additional second RO subset, and the second RO subset is set in a first resource pool based on a type of the first terminal device.

22. The method according to claim 19, wherein The method further comprises: The network device sends first indication information to the first terminal device, where the first indication information is used to indicate whether the first RO set includes the one or more dynamically configured ROs.

23. The method according to claim 22, characterized in that The first indication information is determined based on a result of a machine learning model.

24. The method according to claim 22, characterized in that The first indication information is carried in one or more of the following information: downlink control information DCI, system information block SIB, system information SI and radio resource control RRC.

25. The method according to any one of claims 18 to 24, characterized in that The load of the first area includes the number of terminal devices requesting access in the first area and / or the type of terminal devices requesting access in the first area.

26. The method according to claim 25, characterized in that The number of terminal devices is used to determine a first value. When the first value is lower than a first threshold, the first RO set does not include one or more dynamically configured ROs; when the first value is higher than or equal to the first threshold, the first RO set includes one or more dynamically configured ROs.

27. The method according to any one of claims 18 to 24, characterized in that The first RO set further includes a statically configured third RO subset, and the period of the ROs in the second RO subset is smaller than the period of the ROs in the third RO subset.

28. The method according to any one of claims 18 to 24, characterized in that The activation or deactivation time of any RO in the second RO subset is determined according to the reception time of the activation or deactivation configuration indication and the first time parameter.

29. The method according to any one of claims 18 to 24, characterized in that The first RO set is related to the load of the first area and further includes one or more of the following: The number of ROs in the first RO set is related to the load of the first area; The period of the ROs in the first RO set is related to the load of the first area.

30. The method according to claim 29, wherein The second SSB sent by the network device corresponds to a second RO set, and the second SSB corresponds to a second area. When the load of the second area is greater than the load of the first area, the number of ROs in the second RO set is greater than the number of ROs in the first RO set.

31. The method according to any one of claims 18 to 24, wherein: The first RO set is further determined based on one or more of the following information: a load of the first cell where the first terminal device is located; location information of the first terminal device; channel quality of the first terminal device; resource threshold within the first region; and The number of ROs available in the first area.

32. The method according to claim 31, characterized in that The load of the first cell includes the load of the first area, the network device is network device i, the first terminal device is terminal device j, and the number of ROs in the first RO set P i,j for: Among them, P max Indicates the maximum number of ROs available for the network device, d i,j represents the distance between the first terminal device and the network device, d max represents the maximum distance between the network device and the first area, represents the channel quality between the first terminal device and the network device, Indicates the target channel quality, L i represents the load of the first cell at the current moment, L max represents the maximum load of the first cell, α, β, and γ represent weight factors, and α+β+γ=1.

33. The method according to claim 31, characterized in that The load of the first area is the number of terminal devices. When the difference between the request density of the first area and the average request density of the first cell is greater than the resource threshold, the number of ROs in the first RO set is adjusted.

34. The method according to any one of claims 18 to 24, wherein: The first SSB is sent through a first beam, and the first area is the area covered by the first beam.

35. A device for wireless communication, characterized in that: The apparatus is a first terminal device, and the apparatus includes: A receiving unit, configured to receive a first synchronization signal block SSB sent by a network device, where the first SSB corresponds to a first random access channel opportunity RO set; a processing unit, configured to adjust the first RO set according to its own service type; a sending unit, configured to notify the network device of the adjusted first RO set; The sending unit is further configured to perform uplink transmission through the adjusted first RO set; Among them, the first SSB corresponds to the first area, the first RO set is related to the load of the first area, the first terminal device is a terminal device with a network energy saving NES function, the first RO set includes an additional second RO subset, and the second RO subset is a physical random access channel PRACH resource additionally configured for the terminal device with the NES function, and the uplink transmission includes the transmission of an uplink wake-up signal.

36. The device according to claim 35, characterized in that The first RO set is related to the load of the first area, including: whether the first RO set includes one or more dynamically configured ROs is related to the load of the first area.

37. The device according to claim 36, characterized in that The one or more dynamically configured ROs include a first RO subset, and any RO in the first RO subset is dynamically configured by activation or deactivation.

38. The device according to claim 36, characterized in that The dynamically configured one or more ROs include an additional second RO subset, and the second RO subset is set in a first resource pool based on a type of the first terminal device.

39. The device according to claim 36, characterized in that The receiving unit is further configured to receive first indication information sent by the network device; and the apparatus further comprises: A determining unit is configured to determine, according to the first indication information, whether the first RO set includes the one or more dynamically configured ROs.

40. The device according to claim 39, characterized in that The first indication information is determined based on a result of a machine learning model.

41. The device according to claim 39, characterized in that The first indication information is carried in one or more of the following information: downlink control information DCI, system information block SIB, system information SI and radio resource control RRC.

42. The device according to any one of claims 35 to 41, characterized in that The load of the first area includes the number of terminal devices requesting access in the first area and / or the type of terminal devices requesting access in the first area.

43. The device according to claim 42, characterized in that The number of terminal devices is used to determine a first value. When the first value is lower than a first threshold, the first RO set does not include one or more dynamically configured ROs; when the first value is higher than or equal to the first threshold, the first RO set includes one or more dynamically configured ROs.

44. The device according to any one of claims 35 to 41, characterized in that The first RO set further includes a statically configured third RO subset, and the period of the ROs in the second RO subset is smaller than the period of the ROs in the third RO subset.

45. The device according to any one of claims 35 to 41, characterized in that The activation or deactivation time of any RO in the second RO subset is determined according to the reception time of the activation or deactivation configuration indication and the first time parameter.

46. ​​The device according to any one of claims 35 to 41, characterized in that The first RO set is related to the load of the first area and further includes one or more of the following: The number of ROs in the first RO set is related to the load of the first area; The period of the ROs in the first RO set is related to the load of the first area.

47. The device according to claim 46, characterized in that The second SSB sent by the network device corresponds to a second RO set, and the second SSB corresponds to a second area. When the load of the second area is greater than the load of the first area, the number of ROs in the second RO set is greater than the number of ROs in the first RO set.

48. The device according to any one of claims 35 to 41, characterized in that The first RO set is further determined based on one or more of the following information: a load of the first cell where the first terminal device is located; location information of the first terminal device; channel quality of the first terminal device; A resource threshold within the first region; and The number of ROs available in the first area.

49. The device according to claim 48, characterized in that The load of the first cell includes the load of the first area, the network device is network device i, the first terminal device is terminal device j, and the number of ROs in the first RO set P i,j for: Wherein, Pmax represents the maximum number of ROs available for the network device, d i,j represents the distance between the first terminal device and the network device, d max represents the maximum distance between the network device and the first area, represents the channel quality between the first terminal device and the network device, Indicates the target channel quality, L i represents the load of the first cell at the current moment, L max represents the maximum load of the first cell, α, β, and γ represent weight factors, and α+β+γ=1.

50. The device according to claim 48, characterized in that The load of the first area is the number of terminal devices. When the difference between the request density of the first area and the average request density of the first cell is greater than the resource threshold, the number of ROs in the first RO set is adjusted.

51. The device according to any one of claims 35 to 41, characterized in that The first SSB is sent through a first beam, and the first area is the area covered by the first beam.

52. A device for wireless communication, characterized in that: The device is a network device, and the device includes: A sending unit, configured to send a first synchronization signal block SSB to a first terminal device, where the first SSB corresponds to a first random access channel opportunity RO set, and the first RO set is adjusted by the first terminal device according to its own service type; a determining unit, configured to determine the first RO set after adjustment by the first terminal device; a receiving unit, configured to receive uplink transmission via the adjusted first RO set; Among them, the first SSB corresponds to the first area, the first RO set is related to the load of the first area, the first terminal device is a terminal device with a network energy saving NES function, the first RO set includes an additional second RO subset, and the second RO subset is a physical random access channel PRACH resource additionally configured for the terminal device with the NES function, and the uplink transmission includes the transmission of an uplink wake-up signal.

53. The device according to claim 52, characterized in that The first RO set is related to the load of the first area, including: whether the first RO set includes one or more dynamically configured ROs is related to the load of the first area.

54. The device according to claim 53, characterized in that The one or more dynamically configured ROs include a first RO subset, and any RO in the first RO subset is dynamically configured by activation or deactivation.

55. The device according to claim 53, characterized in that The dynamically configured one or more ROs include an additional second RO subset, and the second RO subset is set in a first resource pool based on a type of the first terminal device.

56. The device according to claim 53, characterized in that The sending unit is further configured to send first indication information to the first terminal device, where the first indication information is used to indicate whether the first RO set includes the one or more dynamically configured ROs.

57. The device according to claim 56, characterized in that The first indication information is determined based on the results of the machine learning model.

58. The device according to claim 56, characterized in that The first indication information is carried in one or more of the following information: downlink control information DCI, system information block SIB, system information SI and radio resource control RRC.

59. The device according to any one of claims 52 to 58, characterized in that The load of the first area includes the number of terminal devices requesting access in the first area and / or the type of terminal devices requesting access in the first area.

60. The device according to claim 59, characterized in that The number of terminal devices is used to determine a first value. When the first value is lower than a first threshold, the first RO set does not include one or more dynamically configured ROs; when the first value is higher than or equal to the first threshold, the first RO set includes one or more dynamically configured ROs.

61. The device according to any one of claims 52 to 58, characterized in that The first RO set further includes a statically configured third RO subset, and the period of the ROs in the second RO subset is smaller than the period of the ROs in the third RO subset.

62. The device according to any one of claims 52 to 58, characterized in that The activation or deactivation time of any RO in the second RO subset is determined according to the reception time of the activation or deactivation configuration indication and the first time parameter.

63. The device according to any one of claims 52 to 58, characterized in that The first RO set is related to the load of the first area and further includes one or more of the following: The number of ROs in the first RO set is related to the load of the first area; The period of the ROs in the first RO set is related to the load of the first area.

64. The device according to claim 63, characterized in that The second SSB sent by the network device corresponds to a second RO set, and the second SSB corresponds to a second area. When the load of the second area is greater than the load of the first area, the number of ROs in the second RO set is greater than the number of ROs in the first RO set.

65. The device according to any one of claims 52 to 58, characterized in that The first RO set is further determined based on one or more of the following information: a load of the first cell where the first terminal device is located; location information of the first terminal device; channel quality of the first terminal device; A resource threshold within the first region; and The number of ROs available in the first area.

66. The device according to claim 65, characterized in that The load of the first cell includes the load of the first area, the network device is network device i, the first terminal device is terminal device j, and the number of ROs in the first RO set P i,j for: Wherein, Pmax represents the maximum number of ROs available for the network device, d i,j represents the distance between the first terminal device and the network device, d max represents the maximum distance between the network device and the first area, represents the channel quality between the first terminal device and the network device, Indicates the target channel quality, L i represents the load of the first cell at the current moment, L max represents the maximum load of the first cell, α, β, and γ represent weight factors, and α+β+γ=1.

67. The device according to claim 65, characterized in that The load of the first area is the number of terminal devices. When the difference between the request density of the first area and the average request density of the first cell is greater than the resource threshold, the number of ROs in the first RO set is adjusted.

68. The device according to any one of claims 52 to 58, characterized in that The first SSB is sent through a first beam, and the first area is the area covered by the first beam.

69. A communication device, characterized in that The system comprises a memory and a processor, wherein the memory is used to store a program, and the processor is used to call the program in the memory to execute the method according to any one of claims 1 to 34.

70. A communication device, characterized in that The device comprises a processor configured to call a program from a memory to execute the method according to any one of claims 1 to 34.

71. A chip, characterized in that The device comprises a processor configured to call a program from a memory so that a device equipped with the chip executes the method according to any one of claims 1 to 34.

72. A computer-readable storage medium, characterized in that A program is stored thereon, the program causing a computer to execute the method according to any one of claims 1 to 34.

73. A computer program product, characterized in that The method comprises a program for causing a computer to execute the method according to any one of claims 1 to 34.

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