WO2022028359A1 - Wireless access method and apparatus - Google Patents

Abstract

Provided is a wireless access method, which is characterized in that the method is applicable to a first-type terminal device. The method can comprise: determining a target frequency resource, wherein the target frequency resource is one frequency resource of at least two first frequency resources, and the first frequency resources are used for transmitting random access uplink data of a first-type terminal device; and transmitting the random access uplink data on the target frequency resource. In the present application, by means of determining a target frequency resource, it can be ensured that a terminal device can transmit random access data while a load on a data transmission frequency resource for a first-type terminal device can also be reduced, thereby preventing the problem of an excessive service load caused by a low bandwidth capability of the first-type terminal device.

Description

Method and device for wireless access

This application claims the priority of the Chinese patent application with the application number 202010791128.X and the application title "A method and device for wireless access" filed with the China Patent Office on August 7, 2020, the entire contents of which are incorporated by reference in this application.

technical field

The present application relates to the field of communications, and, more particularly, to methods and apparatus for wireless access.

Background technique

In the communication process, because the business in the application scenario corresponding to the machine-type terminal equipment does not require high data transmission rate, the implementation specifications can be reduced, thereby reducing the implementation cost; on the other hand, reducing the implementation cost of the machine-type terminal equipment also has It will help expand the market of machine terminal equipment and promote the development of the IoT market.

However, in some scenarios, such as the new radio (NR) system, in the initial access stage, there is no interaction between the base station and the corresponding cell, so the base station cannot obtain the type of terminal equipment, such as machine type terminal equipment, and then The bandwidth capability of the terminal device cannot be determined; at the same time, since the base station cannot identify each machine-type terminal device, the data transmission frequency resources cannot be individually configured for each machine-type terminal device through the dedicated signaling of the terminal device. In the disconnected state, the machine-type terminal devices that aim to establish a Radio Resource Control (RRC) connection with the network device will be concentrated in the same frequency range, which will lead to data transmission frequency resources in the disconnected state. Excessive load, especially when considering the large number of machine-type terminal equipment connections, will further increase the load on data transmission frequency resources.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a method and apparatus for wireless access, which can implement service load offload in the scenario of large connection of the first type of terminal equipment, and ensure the performance of data transmission in the non-connection state.

A first aspect provides a method for wireless access, the method is applicable to a first type of terminal equipment, the method includes: determining a target frequency resource, the target frequency resource being one of at least two first frequency resources resource, where the first frequency resource is used to transmit random access uplink data of the first type of terminal equipment; and the random access uplink data is transmitted on the target frequency resource.

It should be understood that the first frequency resource may not only be a resource set for ensuring random access data transmission, but also may be used for other data transmissions.

It should be understood that the wireless access method provided in the first aspect may be executed by a target terminal device, or may also be executed by a communication device or a chip in the target terminal device, which is not limited in this application.

Based on the above technical solution, by determining one of the at least two first frequency resources as the target resource, and using the target resource for transmitting random access uplink data of the first type terminal equipment, it is possible to avoid the problem of the first type terminal equipment The problem of heavy service load caused by the device's low bandwidth capability can also ensure that the terminal device transmits random access uplink data.

With reference to the first aspect, in some implementations of the first aspect, the target frequency resource is determined according to at least one of the following: random access preamble resources used by the target terminal equipment in the random access process, wherein the target terminal equipment The device belongs to the first type of terminal device; the number of random access preamble resources for the first type of terminal device; the number of the first frequency resource.

With reference to the first aspect, in some implementations of the first aspect, the target frequency resource is based on the corresponding relationship between the random access preamble resource of the first type terminal device and the first frequency resource and the It is determined by the random access preamble resource used in the entry process, and the correspondence between the random access preamble resource of the first type terminal device and the first frequency resource comes from the network device.

Based on the above technical solution, the target terminal device can determine the first frequency resource according to the random access preamble resource determined to be used in the initial access process and the association relationship between the random access preamble resource and the first frequency resource. The advantage of determining the first frequency resource according to the random access preamble resource is that, in some cases, unnecessary data transmission delay can be avoided.

With reference to the first aspect, in some implementations of the first aspect, the target frequency resource is determined according to the synchronization signal block and the corresponding relationship between the synchronization signal block and the first frequency resource, and the synchronization signal block and the first frequency resource are determined. The corresponding relationship comes from the network device.

Based on the above technical solution, the advantage of determining the target frequency resource by the target terminal device according to the relationship between the first frequency resource and the synchronization signal block is that the implementation is simple, because in the NR system, the synchronization signal block can represent different beam directions, The geographical distribution of target terminal equipment in the system determines that the beam directions of the synchronization signal blocks selected by target terminal equipment in different geographical locations are different. Therefore, it is natural to realize the shunting of data transmission frequency resources of different terminal equipment and realize service load balance. , to ensure the data transmission efficiency on each data transmission frequency resource. The network device may notify the first-type terminal device of the above-mentioned correspondence by means of broadcast information notification or RRC dedicated signaling, which is not limited in this application.

With reference to the first aspect, in some implementations of the first aspect, the target frequency resource is determined according to at least one of the following: a synchronization signal block determined during an initial access process; the number of synchronization signal blocks from the network device ; the number of the first frequency resource.

Based on the above technical solutions, after the target terminal device determines that different synchronization signal blocks correspond to different data transmission frequency resources, it can determine the target frequency resources according to the selected synchronization signal blocks and the data transmission frequency resources corresponding to the synchronization signal blocks.

With reference to the first aspect, in some implementations of the first aspect, the size of each first frequency resource is determined according to the number of the first frequency resource and the second frequency resource, and the second frequency resource is used to transmit the first frequency resource. Random access uplink data of the second type of terminal equipment, where the bandwidth capability of the second type of terminal equipment is different from that of the first type of terminal equipment.

With reference to the first aspect, in some implementations of the first aspect, the position of each first frequency resource is corresponding to the number of the first frequency resource and the random access preamble resource used for the second type terminal device Determined by the frequency resource, the bandwidth capability of the second type of terminal equipment is different from that of the first type of terminal equipment.

The difference between the first type of terminal equipment and the second type of terminal equipment in this application includes, but is not limited to, the difference in bandwidth capability, that is, bandwidth capability is not a mandatory feature in this application.

With reference to the first aspect, in some implementations of the first aspect, the number of the first frequency resources is determined according to at least one of the following: the bandwidth of the system carrier; the frequency band where the system carrier is located; The frequency resource of the random access uplink data of the type terminal equipment; the transmission bandwidth used for the downlink system information of the second type terminal equipment.

In this application, the number of the first frequency resources may be determined by any of the above-mentioned resources and/or a combination of any resources, which is not limited in this application.

With reference to the first aspect, in some implementations of the first aspect, the target frequency resource is determined according to indication information from a network device.

The indication information may be in the form of notification through broadcast information, or may be in the form of RRC dedicated signaling, which is not limited in this application.

In a second aspect, a method for wireless access is provided, the method is applicable to a network device, the method includes: determining a target frequency resource, where the target frequency resource is one frequency resource among at least two first frequency resources, the The first frequency resource is used for transmitting random access uplink data of the first type terminal equipment; on the target frequency resource, random access uplink data from the first type terminal equipment is received.

It should be understood that the wireless access method provided in the second aspect may be performed by a network device, or may also be performed by a communication device or a chip in the network device, which is not limited in this application.

Based on the above technical solution, by determining the target frequency resource in the at least two first frequency resources, and receiving random access uplink data from the first type terminal equipment on the target frequency resource, the random access of the terminal equipment can be ensured, and at the same time Effectively relieve the overload pressure on the data transmission frequency resources in the disconnected state due to the fact that the first type terminal devices aiming to establish an RRC connection with the network device in the disconnected state are all concentrated in one frequency range.

With reference to the second aspect, in some implementations of the second aspect, the target frequency resource is determined according to at least one of the following: random access preamble resources used by the target terminal equipment in the random access process, wherein the target terminal equipment The device belongs to the first type of terminal device; the number of random access preamble resources for the first type of terminal device; the number of the first frequency resource.

With reference to the second aspect, in some implementations of the second aspect, the target frequency resource is based on the corresponding relationship between the random access preamble resource of the first type terminal device and the first frequency resource and the It is determined by the random access preamble resource used in the entry process, and the correspondence between the random access preamble resource of the first type terminal device and the first frequency resource comes from the network device.

With reference to the second aspect, in some implementations of the second aspect, the target frequency resource is determined according to the synchronization signal block and the corresponding relationship between the synchronization signal block and the first frequency resource, the synchronization signal block and the first frequency resource The corresponding relationship comes from the network device.

With reference to the second aspect, in some implementations of the second aspect, the target frequency resource is determined according to at least one of the following: a synchronization signal block determined during an initial access process; the number of synchronization signal blocks from the network device ; the number of the first frequency resource.

With reference to the second aspect, in some implementations of the second aspect, the size of each first frequency resource is determined according to the number of the first frequency resource and the second frequency resource, and the second frequency resource is used to transmit the first frequency resource. Random access uplink data of the second type of terminal equipment, where the bandwidth capability of the second type of terminal equipment is different from that of the first type of terminal equipment.

With reference to the second aspect, in some implementations of the second aspect, the position of each first frequency resource is corresponding to the quantity of the first frequency resource and the random access preamble resource used for the second type terminal device frequency resources are determined.

With reference to the second aspect, in some implementations of the second aspect, the number of the first frequency resources is determined according to at least one of the following: the bandwidth of the system carrier; the frequency band where the system carrier is located; The frequency resource of the random access uplink data of the type terminal equipment; the transmission bandwidth used for the downlink system information of the second type terminal equipment.

With reference to the second aspect, in some implementations of the second aspect, the target frequency resource is determined according to indication information from a network device.

In a third aspect, an apparatus for wireless access is provided, and the apparatus is applicable to a first type of terminal equipment, including:

a processing module, configured to determine a target frequency resource, where the target frequency resource is one frequency resource among at least two first frequency resources, and the first frequency resource is used to transmit the random access uplink of the first type terminal device data; the processing module is further configured to transmit random access uplink data on the target frequency resource.

Optionally, the apparatus further includes a transceiver module and/or a storage module.

For the beneficial effects of the above technical solutions, reference may be made to the relevant description of the first aspect, which is not repeated here for brevity.

With reference to the third aspect, in some implementations of the third aspect, the target frequency resource is determined according to at least one of the following: random access preamble resources used in the random access process; The number of random access preamble resources of the type of terminal equipment; the number of the first frequency resources.

With reference to the third aspect, in some implementations of the third aspect, the target frequency resource is based on the corresponding relationship between the random access preamble resource of the first type terminal device and the first frequency resource and the The random access preamble resource used in the random access process is determined, and the corresponding relationship between the random access preamble resource of the first type terminal device and the first frequency resource is configured by the network device.

With reference to the third aspect, in some implementations of the third aspect, the target frequency resource is determined according to a synchronization signal block and a corresponding relationship between the synchronization signal block and the first frequency resource, the synchronization signal block The correspondence with the first frequency resource is configured by the network device.

With reference to the third aspect, in some implementations of the third aspect, the target frequency resource is determined according to at least one of the following: a synchronization signal block determined in an initial access process; a synchronization signal from the network device The number of blocks; the number of the first frequency resources.

With reference to the third aspect, in some implementations of the third aspect, the size of each of the first frequency resources is determined according to the number of the first frequency resources and the second frequency resources, the second frequency resources It is used to transmit random access uplink data of a second type of terminal equipment, where the bandwidth capabilities of the second type of terminal equipment and the first type of terminal equipment are different.

With reference to the third aspect, in some implementations of the third aspect, the location of each of the first frequency resources is based on the number of the first frequency resources and random access preamble resources for the second type of terminal equipment The corresponding frequency resources are determined, and the bandwidth capabilities of the second type terminal device and the first type terminal device are different.

With reference to the third aspect, in some implementations of the third aspect, the number of the first frequency resources is determined according to at least one of the following: the bandwidth of the system carrier; the frequency band where the system carrier is located; The frequency resources of the terminal equipment for random access to uplink data, the bandwidth capabilities of the second type terminal equipment and the first type terminal equipment are different; the transmission bandwidth for the downlink system information of the second type terminal equipment.

With reference to the third aspect, in some implementations of the third aspect, the target frequency resource is determined according to indication information from a network device.

In a fourth aspect, an apparatus for wireless access is provided, the apparatus is suitable for network equipment, and includes: a processing module for determining a target frequency resource, where the target frequency resource is one frequency among at least two first frequency resources resource, the first frequency resource is used to transmit random access uplink data of the first type terminal device; the processing module is further configured to, on the target frequency resource, receive random access from the first type terminal device upstream data.

Optionally, the apparatus further includes a transceiver module and/or a storage module.

With reference to the fourth aspect, in some implementations of the fourth aspect, the target frequency resource is determined according to at least one of the following: random access preamble resources used in the random access procedure; for the first type The number of random access preamble resources of the terminal device; the number of the first frequency resources.

With reference to the fourth aspect, in some implementations of the fourth aspect, the target frequency resource is based on the corresponding relationship between the random access preamble resource of the first type terminal device and the first frequency resource and the The random access preamble resource used in the random access process is determined, and the correspondence between the random access preamble resource of the first type terminal device and the first frequency resource comes from the network device.

With reference to the fourth aspect, in some implementations of the fourth aspect, the target frequency resource is determined according to a synchronization signal block and a corresponding relationship between the synchronization signal block and the first frequency resource, the synchronization signal block The correspondence with the first frequency resource comes from the network device.

With reference to the fourth aspect, in some implementations of the fourth aspect, the target frequency resource is determined according to at least one of the following: a synchronization signal block determined during an initial access process; a synchronization signal from the network device The number of blocks; the number of the first frequency resources.

With reference to the fourth aspect, in some implementations of the fourth aspect, the size of each of the first frequency resources is determined according to the number of the first frequency resources and the second frequency resources, the second frequency resources It is used to transmit random access uplink data of a second type of terminal equipment, where the bandwidth capabilities of the second type of terminal equipment and the first type of terminal equipment are different.

With reference to the fourth aspect, in some implementations of the fourth aspect, the location of each of the first frequency resources is based on the number of the first frequency resources and random access preamble resources for the second type of terminal equipment The corresponding frequency resources are determined, and the bandwidth capabilities of the second type terminal device and the first type terminal device are different.

With reference to the fourth aspect, in some implementations of the fourth aspect, the number of the first frequency resources is determined according to at least one of the following: the bandwidth of the system carrier; the frequency band where the system carrier is located; The frequency resource for random access uplink data of the terminal equipment, the bandwidth capability of the second type terminal equipment is different from that of the first type terminal equipment; the transmission bandwidth used for the downlink system information of the second type terminal equipment.

With reference to the fourth aspect, in some implementations of the fourth aspect, the target frequency resource is determined according to indication information from the network device.

In a fifth aspect, an apparatus for wireless access is provided, including a processor. The processor is coupled to the memory and can be used to execute instructions in the memory to implement the above-mentioned first aspect or the second aspect and the communication method in any possible implementation manner of the first aspect or the second aspect. Optionally, the apparatus for wireless access further includes a memory. Optionally, the apparatus for wireless access further includes a communication interface, the processor is coupled to the communication interface, and the communication interface is used for inputting and/or outputting information. The information includes at least one of instructions and data.

In an implementation manner, the apparatus for wireless access is a network device. When the apparatus for wireless access is a network device, the communication interface may be a transceiver, or an input/output interface.

In another implementation manner, the apparatus for wireless access is a chip or a chip system. When the device for wireless access is a chip or a chip system, the communication interface may be an input/output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit on the chip or a chip system. The processor may also be embodied as a processing circuit or a logic circuit.

In another implementation manner, the apparatus for wireless access is a chip or a chip system configured in a network device.

Optionally, the transceiver may be a transceiver circuit. Optionally, the input/output interface may be an input/output circuit.

A sixth aspect provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a communication device, causes the communication device to implement the first aspect or the second aspect, and the first aspect or the first aspect or the second aspect. The communication method in any possible implementation manner of the second aspect.

A seventh aspect provides a computer program product comprising instructions, which when executed by a computer cause a communication apparatus to implement the communication method provided by the first aspect or the second aspect.

In an eighth aspect, a communication system is provided, which implements the apparatus for wireless access provided in the third aspect or the apparatus for wireless access provided in the fourth aspect, and the third aspect or the fourth aspect An apparatus for wireless access in any possible implementation manner of .

Description of drawings

FIG. 1 shows a schematic diagram of a wireless communication system 100 suitable for this embodiment of the present application.

FIG. 2 shows another schematic diagram of a wireless communication system 200 suitable for this embodiment of the present application.

FIG. 3 shows an architecture diagram of system data transmission in a random access phase.

FIG. 4 shows a schematic diagram of a resource load of a data transmission frequency resource.

FIG. 5 shows a system architecture diagram of a wireless access applicable to an embodiment of the present application.

FIG. 6 shows a schematic flowchart of a method for wireless access applicable to this embodiment of the present application.

FIG. 7 shows a schematic diagram of determining the size of the first frequency resource applicable to the embodiment of the present application.

FIG. 8 shows another schematic diagram for determining the size of the first frequency resource applicable to this embodiment of the present application.

FIG. 9 shows a schematic diagram of a method for configuring a preamble resource according to random access, which is applicable to this embodiment of the present application.

FIG. 10 shows a schematic diagram of determining the position of the first frequency resource applicable to the embodiment of the present application.

FIG. 11 shows a schematic diagram of a method for determining a first frequency resource applicable to an embodiment of the present application.

FIG. 12 shows another schematic diagram of a method for determining a first frequency resource applicable to an embodiment of the present application.

FIG. 13 shows another schematic diagram of a method for determining a first frequency resource applicable to an embodiment of the present application.

FIG. 14 shows a schematic block diagram of a communication apparatus provided by an embodiment of the present application.

FIG. 15 shows a schematic structural diagram of a communication apparatus provided by an embodiment of the present application.

FIG. 16 shows a schematic structural diagram of a communication apparatus provided by an embodiment of the present application.

FIG. 17 shows a schematic structural diagram of a communication apparatus provided by an embodiment of the present application.

detailed description

The technical solutions in the present application will be described below with reference to the accompanying drawings.

The Fifth-Generation (5G) mobile communication technology, New Radio (NR), is a global 5G standard based on a new air interface design based on Orthogonal Frequency Division Multiplexing (OFDM). The next generation is a very important cellular mobile technology foundation. The services of 5G technology are very diverse, which can be oriented to Enhanced Mobile Broadband (eMBB) services, Ultra-Reliability Low-Latency Communication (URLLC) services And the Massive Machine-Type Communication (mMTC) service, where the mMTC service can be, for example, the Industrial Wireless Sensor Network (IWSN) service, the Video Surveillance (Video Surveillance) service, and the Wearables (Wearables) service. business.

Machine-type terminal equipment often has higher requirements on cost and power consumption. For example, machine-type terminal equipment is generally implemented at low cost, because the service in the application scenario corresponding to machine-type terminal equipment does not require high data transmission rates. For example, the data transmission rate carried by sensors under IWSN is not greater than 2Mbps. The data transmission rate carried by economical video surveillance cameras is generally 2 to 4 Mbps, and the peak downlink rate of terminal devices under wearable services, such as smart watches, does not exceed 150Mbps, and the peak uplink rate does not exceed 50Mbps, which is far lower than that of IWSN services. Due to the peak rate of NR legacy terminal equipment (such as NR eMBB terminal equipment), based on this, machine-type terminal equipment can reduce implementation specifications compared with NR legacy terminal equipment, thereby reducing implementation costs; on the other hand, reduce the implementation of machine-type terminal equipment. The cost also helps to expand the market for machine-type terminal equipment and promote the development of the IoT market. At present, 3GPP has launched research on low-capacity terminal equipment (NR reduced capability, NR RedCap) under the NR system (reference: RP-193238), aiming to target the growing IoT market, such as the aforementioned IWSN, video Monitoring and wearable business, design a terminal device that meets the performance requirements of the IoT market and has low cost/low implementation complexity to expand the application of NR systems in the IoT market. For the convenience of description, in the subsequent parts of this paper, NR RedCap UE is used as an example for description.

One way to reduce the cost of terminal equipment is to reduce the channel bandwidth of the terminal equipment, or it can also be understood as reducing the bandwidth capability of the terminal equipment, that is, the bandwidth capability of the NR RedCap UE can be much smaller than the bandwidth capability of the NR legacy terminal equipment. At present, NR Legacy terminal equipment such as version Rel-15/Rel-16 terminal equipment must have a bandwidth capability of 100MHz, while NR RedCap UE can receive the initial access signal sent by the NR base station and then access the NR system. , its bandwidth capability can be only 20MHz. Under certain NR system configurations, the bandwidth capability of NR RedCap UEs can be further reduced, for example, 5MHz or 10MHz. At this time, NR RedCap UEs can also access NR systems. Compared with the bandwidth capability of 100MHz, the bandwidth capability of not more than 20MHz can greatly reduce the cost of the RedCap UE.

The technical solutions of the embodiments of the present application can be applied to various communication systems, for example, fifth generation (5th generation, 5G) systems or new radio (NR), long term evolution (LTE) systems, LTE frequency Frequency division duplex (FDD) system, LTE time division duplex (TDD), universal mobile telecommunication system (UMTS), etc. The technical solutions of the embodiments of the present application may also be applied to device-to-device (device to device, D2D) communication and the like.

To facilitate understanding of the embodiments of the present application, a communication system applicable to the embodiments of the present application is first described in detail with reference to FIG. 1 and FIG. 2 .

FIG. 1 is a schematic diagram of a wireless communication system 100 suitable for an embodiment of the present application. As shown in the figure, the wireless communication system 100 may include at least one network device, such as the network device 111 shown in FIG. 1 , and the wireless communication system 100 may also include at least one terminal device, such as the terminal devices 121 to 121 shown in FIG. Terminal device 123. Both the network device and the terminal device can be configured with multiple antennas, and the network device and the terminal device can communicate using the multi-antenna technology.

Wherein, when the network device communicates with the terminal device, the network device can manage one or more cells, and each cell can provide services for at least one terminal device. In a possible implementation manner, the network device 111 and the terminal device 121 to the terminal device 123 form a single-cell communication system, and without loss of generality, the cell is denoted as cell #1. The network device 111 may be a network device in cell #1, or in other words, the network device 111 may serve a terminal device (eg, terminal device 121) in cell #1.

It should be noted that a cell can be understood as an area within the coverage range of a wireless signal of a network device.

FIG. 2 is another schematic diagram of a wireless communication system 200 suitable for an embodiment of the present application. As shown in the figure, the technical solutions of the embodiments of the present application can also be applied to D2D communication. The wireless communication system 200 includes a plurality of terminal devices, such as the terminal device 201 to the terminal device 203 in FIG. 2 . The terminal device 201 to the terminal device 203 can communicate directly. For example, the terminal device 201 and the terminal device 202 may send data to the terminal device 203 individually or simultaneously.

It should be understood that the above-mentioned FIG. 1 and FIG. 2 are only exemplary descriptions, and the present application is not limited thereto. For example, the embodiments of the present application can also be applied to random access scenarios (such as 5G NR random access procedures).

It should also be understood that the network device in the wireless communication system may be any device having a wireless transceiver function. The equipment includes but is not limited to: evolved Node B (evolved Node B, eNB), Radio Network Controller (Radio Network Controller, RNC), Node B (Node B, NB), Base Station Controller (Base Station Controller, BSC) , Base Transceiver Station (BTS), home base station (for example, Home evolved NodeB, or Home Node B, HNB), baseband unit (BaseBand Unit, BBU), wireless fidelity (Wireless Fidelity, WIFI) system Access point (AP), wireless relay node, wireless backhaul node, transmission point (TP) or transmission and reception point (TRP), etc., and can also be 5G, such as NR , a gNB in the system, or, a transmission point (TRP or TP), one or a group of (including multiple antenna panels) antenna panels of a base station in a 5G system, or, it can also be a network node that constitutes a gNB or a transmission point, Such as baseband unit (BBU), or distributed unit (distributed unit, DU) and so on.

In some deployments, a gNB may include a centralized unit (CU) and a DU. The gNB may also include an active antenna unit (active antenna unit, AAU for short). The CU implements some functions of the gNB, and the DU implements some functions of the gNB. For example, the CU is responsible for processing non-real-time protocols and services, and implementing functions of radio resource control (RRC) and packet data convergence protocol (PDCP) layers. The DU is responsible for processing physical layer protocols and real-time services, and implementing the functions of the radio link control (RLC) layer, the media access control (MAC) layer and the physical (PHY) layer. AAU implements some physical layer processing functions, radio frequency processing and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be transformed from the information of the PHY layer, therefore, in this architecture, the higher-layer signaling, such as the RRC layer signaling, can also be considered to be sent by the DU. , or, sent by DU+AAU. It can be understood that the network device may be a device including one or more of a CU node, a DU node, and an AAU node. In addition, the CU can be divided into network devices in an access network (radio access network, RAN), and the CU can also be divided into network devices in a core network (core network, CN), which is not limited in this application.

It should also be understood that the terminal equipment in the wireless communication system may also be referred to as user equipment (UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile equipment, User terminal, terminal, wireless communication device, user agent or user equipment. The terminal device in the embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical, wireless terminals in smart grid, transportation security ( Wireless terminals in transportation safety), wireless terminals in smart cities, wireless terminals in smart homes, and so on. The embodiments of the present application do not limit application scenarios.

To facilitate understanding of the embodiments of the present application, the following briefly introduces several terms involved in the present application. 1. Physical Uplink Control Channel

The Physical Uplink Control CHannel (PUCCH) is used to carry uplink control information. Compared with LTE, NR PUCCH supports 5 different formats. According to the number of symbols occupied in the time domain, it can be divided into two formats: short format and long format. The short format occupies 1-2 symbols and can carry 1-2 bits of information, and the long format occupies 4-14 symbols and can carry information larger than 2 bits. The purpose of introducing the short-format PUCCH in NR is to shorten the delay of Hybrid Automatic Repeat-Request Acknowledgement (HARQ-ACK) feedback, while the long-format can still ensure coverage considering the long duration.

In NR, considering the flexibility of system configuration, all PUCCHs with 2 or more symbols can be configured with frequency hopping, including intra-slot and inter-slot frequency hopping. The number of symbols in the first hop during frequency hopping is 1, and the remaining symbols are in the second hop.

PUCCH formats 0 1 3 4 all use low peak-to-average power ratio (low-PAPR) sequences, which can reduce the peak-to-average ratio of uplink transmission. The low-PAPR sequence is generated by cyclic shift on the basis of a basic sequence, and the basic sequence is divided into two cases according to the length of the sequence.

2. Physical uplink shared channel

The Physical Uplink Shared Channel (PUSCH, Physical Uplink Shared Channel) is used to carry data from the transport channel USCH. The so-called sharing means that the same physical channel can be used by multiple users in time-sharing, or the channel has a short duration.

3. Control resource collection

The control resource set (Control-Resource Set, CORESET) mainly indicates the number of symbols (time domain) and RBs (frequency domain) occupied by the physical downlink control channel, that is, the CORESET indicates the frequency domain resources including the PDCCH. CORESET contains several PRBs, the minimum is 6 in the time domain, and the number of symbols is 1-3. Each cell can be configured with multiple CORESETs (0~11), of which CORESET0 can be used for the remaining minimum system information (Remaining Minimum System Information, RMSI) (It can also become the scheduling of System Information Block Type 1 (SIB1).

4. Physical downlink control channel

The Physical Downlink Control Channel (PDCCH) carries scheduling and other control information, including transmission format, resource allocation, uplink scheduling grant, power control, and uplink retransmission information. The PDCCH channel is a set of physical resource elements, which carry uplink and downlink control information. According to different scopes, the PDCCH carries information to distinguish common control information (common search space) and dedicated control information (dedicated search space).

5. Main Information Block

Master Information Block (MIB), when the network side device is powered on, it will first send MIB messages, and then send a series of system information block (SIB) messages. The MIB message carries the most basic information, which is related to the decoding of the physical downlink shared channel. Only after decoding the MIB, the UE can use the parameters in the MIB to continue decoding the data in the physical downlink shared channel, including the decoding system. message block information.

6. Radio resource control status

RRC state, the terminal equipment has three RRC states: RRC connected state, RRC idle state and RRC inactive state.

RRC connected state (or, it can also be referred to as connected state. In this paper, "connected state" and "RRC connected state" are the same concept, and the two terms can be interchanged): the terminal device and the network establish an RRC connection for data transfer.

RRC idle state (or, it can also be referred to as idle state. In this paper, "idle state" and "RRC idle state" are the same concept, and the two terms can be interchanged): the terminal device does not establish RRC with the network connection, the base station does not store the context of the terminal device. If the terminal device needs to enter the RRC connected state from the RRC idle state, it needs to initiate the RRC connection establishment process.

RRC inactive state (or, may also be referred to simply as inactive state. In this document, "inactive state", "deactivated state", "inactive state", "RRC inactive state" or "RRC deactivated state" etc., are the same concept, and these terms can be interchanged): the terminal device entered the RRC connection state at the anchor base station before, and then the anchor base station released the RRC connection, but the anchor base station saved the context of the terminal device. If the terminal device needs to re-enter the RRC connected state from the RRC inactive state, it needs to initiate an RRC connection recovery process (or referred to as an RRC connection re-establishment process) at the currently residing base station. Because the terminal device may be in a mobile state, the base station where the terminal device currently resides and the anchor base station of the terminal device may be the same base station, or may be different base stations. Compared with the RRC establishment process, the RRC recovery process has shorter delay and lower signaling overhead. However, the base station needs to save the context of the terminal device, which will occupy the storage overhead of the base station.

7. System message block

System Information Block (SIB) is the system information broadcast by the base station, which is divided into various types, so that it can be sent on different frequencies. There are 19 types of SIBs in total, and the scheduling information of SIBs is carried through MIBs or SBs.

In order to ensure data transmission with the NR base station, the terminal equipment needs to establish a connection with the NR base station through the random access process, so that the NR base station can identify the terminal equipment and complete subsequent data transmission. Taking the initial access as an example, the NR Legacy terminal device is in the idle state (idle state), and by receiving the synchronization signal block (SSB) sent by the NR base station, it can realize time-frequency synchronization with the NR base station and obtain the synchronization signal block (SSB). The initial access configuration information of the cell corresponding to the NR base station, that is, the system information block 1 (system information block 1, SIB1) information. The continuous bandwidth resource, which is defined in the current protocol as the initial upstream bandwidth part (bandwidth part, BWP). The initial uplink BWP can be used for the physical uplink shared channel (PUSCH) for transmitting message 3 (message 3, Msg3) in the random access process, and for transmitting information A (message A, message A, PUSCH) in the random access process. Msg A) and the physical uplink control channel (PUCCH) for transmitting hybrid automatic repeat request (HARQ) feedback, wherein the HARQ feedback is the information 4 (message 4) in the random access process. , Msg 4) or the feedback for message B (message B, Msg B) in the random access process, in addition, the physical random access channel (physical random access channel, PRACH) resources in the random access process must also be in the Transmission in the upstream initial BWP. Further, the terminal device can also ensure the data transmission performance with the base station in the random access process and the RRC connection process through PUCCH frequency hopping and PUSCH frequency hopping, wherein the frequency range of PUCCH frequency hopping and the frequency range of PUSCH frequency hopping. It also needs to be guaranteed to be within the initial BWP of the upstream. Therefore, it is necessary for the NR terminal equipment to define a frequency range including the above-mentioned data transmission resources and frequency hopping resources, so as to ensure the establishment of a data transmission connection with the base station.

It should be understood that the form of the uplink initial BWP here may not only be a set of frequency resources for ensuring random access data transmission, but also may be used for data transmission in other scenarios.

In addition, even if the terminal device enters the connected state, data transmission will be completed based on the uplink initial BWP corresponding to the random access phase under some conditions.

In combination with the above description, for the NR RedCap UE, in order to ensure data transmission with the base station, it is also necessary to consider designing its uplink initial BWP for the RedCap UE.

FIG. 3 is an architectural diagram of system data transmission in a random access phase. In the prior art, first, in the random access phase, the frequency resource configuration of the initial uplink BWP is included in the SIB1 information. Before receiving the SIB1 information, the data transmission between the terminal device and the base station is shown in Figure 3, and it can be observed that , the terminal equipment does not send uplink information before receiving the SIB1 information, that is, there is no interaction between the cells corresponding to the NR base station, so the NR base station (or network side equipment) cannot obtain the type of terminal equipment, that is, it is uncertain to receive SIB1 information The terminal device is a terminal device with a bandwidth capability of 100MHz or a terminal device with a bandwidth capability of not more than 20MHz (for example, an NR RedCap terminal device). This will lead to the following problems in the prior art:

(1) The initial uplink BWP bandwidth configured by the network device exceeds the bandwidth capability of the NR RedCap UE, resulting in the inability of the NR RedCap terminal device to access.

For example, the initial uplink BWP includes PRACH resources. According to the current protocol, the total PRACH resource bandwidth configured by the network device will exceed 20MHz. On the other hand, in the NR system, there is a correspondence between SSB and PRACH resources (such as preamble preamble). The UE can select the corresponding preamble to initiate random access according to the detected SSB and the correspondence between SSB and preamble. , the network device can determine the SSB beam direction detected by the UE that initiated the preamble through the received preamble, and before establishing a radio resource control (radio resource control, RRC) connection with the UE, through the SSB beam direction corresponding to the preamble, to The UE sends downlink data, so that the downlink data transmission performance can be guaranteed. However, since the total PRACH resource bandwidth configured by the network equipment will exceed 20MHz, the NR RedCap UE will not be able to select the PRACH resource corresponding to the optimal SSB beam direction, which will affect the data transmission performance of the RedCap UE, and even cause the RedCap UE to be unable to access.

(2) Limit the uplink initial BWP bandwidth corresponding to the NR Legacy UE, which affects the initial access performance of the NR Legacy UE.

Considering the possible existence of NR RedCap UEs in the system, when configuring the initial uplink BWP bandwidth, the network device can configure the initial uplink BWP bandwidth to a value not greater than the bandwidth capability of the NR RedCap UEs, so as to ensure the access of the RedCap UEs. However, this will limit the performance of legacy UE access. For example, as mentioned above, the UE can determine the frequency hopping resource range of the uplink transmission channel according to the size of the uplink initial BWP, and limit the bandwidth of the uplink initial BWP, which will reduce the hop of the uplink transmission channel. The range of frequency resources affects the data transmission performance. For another example, configuring the uplink initial BWP bandwidth according to the NR RedCap UE will also affect the capacity of legacy UE access. For example, for an NR Legacy UE, the initial uplink BWP can be configured to a maximum of 100MHz. If it is considered that the NR RedCap UE and the NR Legacy UE share the uplink initial BWP, the bandwidth of the uplink initial BWP can only be configured to 20MHz, and the bandwidth reduction of the uplink initial BWP will be reduced. NR Legacy UE access capacity.

FIG. 4 is a schematic diagram of a resource load of a data transmission frequency resource. Wherein, the first type of terminal equipment can be a low-cost, low-bandwidth terminal equipment, such as NR RedCap UE, and the second type of terminal equipment can be a traditional terminal equipment (NR Legacy UE, such as NR eMBB UE). As shown in the figure, due to the limitation of the bandwidth capability of the first type of terminal equipment, the data transmission frequency resources used in the disconnected state cannot exceed the bandwidth capability of the first type of terminal equipment in one way, so that in the disconnected state For example, in the initial access stage, the data transmission between the network device and the first-type terminal device can only be concentrated in the frequency range corresponding to the bandwidth capability of the first-type terminal device. Considering that, in a disconnected state such as the initial access stage, the network device cannot identify each first type terminal device, so it is impossible to individually configure data transmission frequency resources for each first type terminal device through the dedicated signaling of the terminal device. , which will result in that the first type of terminal equipment that aims to establish an RRC connection with the network equipment in the non-connected state will be concentrated in a frequency range, for example, 20MHz. Considering that in the disconnected state, the 20MHz will include the transmission of the following channels: preamble transmission, Msg3 transmission in the random access process, HARQ-ACK transmission for Msg4, etc., and for the terminal equipment in the connected state, under certain conditions It will also fall back to the corresponding data transmission frequency resource in the disconnected state to complete the data transmission with the network device. This will result in an excessive load on the data transmission frequency resources in the disconnected state, especially when considering the large number of connections of the first type terminal equipment, the load on the data transmission frequency resources will be further increased. For the second type of terminal equipment, the above problem does not exist, because the required bandwidth capability of the second type of terminal equipment is 100MHz, so the network equipment can configure data transmission frequency resources with a relatively large frequency resource range.

The difference between the first terminal device and the second terminal device includes at least one of the following:

1. Different bandwidth capabilities. For example, the second type terminal equipment can support the simultaneous use of 100MHz frequency domain resources and network equipment on one carrier for data transmission, while the first type terminal equipment can support the maximum simultaneous use of 20MHz, 10MHz or 5MHz frequency domain resources and network equipment for data transmission.

2. The number of transceiver antennas is different. For example, the minimum supported antenna configuration of the second type terminal equipment is 4 transmit and 2 receive, that is, under the minimum antenna configuration, 4 receiving antennas are used to receive downlink data, and 2 transmitting antennas are used to send uplink data; while the first type terminal equipment supports the maximum The antenna configuration is lower than 4 transmissions and 2 receptions. For example, the first type terminal equipment UE only supports 2 receptions and 1 transmission, or can also support 1 reception and 1 transmission, or can also support 2 receptions and 2 transmissions.

3. The uplink maximum transmit power is different. For example, the maximum uplink transmit power of the second type of terminal equipment may be 23 dBm or 26 dBm, while the maximum uplink transmit power of the first type of terminal equipment may be a value between 4dBm and 20dBm.

4. The protocol versions corresponding to the first type terminal device and the second type terminal device are different. For example, NR Rel-15, NR Rel-16 terminal equipment can be considered as the second type of terminal equipment, and the first type of terminal equipment can be considered as NR Rel-17 terminal equipment.

5. The first type terminal equipment and the second type terminal equipment support different carrier aggregation (carrier aggregation, CA) capabilities. For example, the second type of terminal equipment may support carrier aggregation, but the first type of terminal equipment does not support carrier aggregation; for another example, both the first type of terminal equipment and the second type of terminal equipment support carrier aggregation, but the second type of terminal equipment supports both. The maximum number of carrier aggregations is greater than the maximum number of carrier aggregations simultaneously supported by the first type of terminal equipment. For example, the second type of terminal equipment can support aggregation of up to 5 carriers or 32 carriers simultaneously, while the first type of terminal equipment can simultaneously support aggregation of up to 2 carriers.

6. The second type of terminal equipment supports Frequency Division Duplexing (FDD), while the first type of terminal equipment supports half-duplex FDD. The first type of terminal equipment and the second type of terminal equipment have different processing time capabilities for data. For example, the minimum delay between receiving downlink data and sending feedback on the downlink data by the second type terminal equipment is smaller than the minimum delay between receiving downlink data and sending feedback on the downlink data by the first type terminal equipment. The minimum delay between the second type terminal equipment sending the uplink data and receiving the feedback of the uplink data is smaller than the minimum delay time between the first type terminal equipment sending the uplink data and receiving the feedback of the uplink data.

7. The processing capability of the second type of terminal equipment is different from that of the first type of terminal equipment. The processing capability of the first type of terminal equipment is lower than that of the second type of terminal equipment. For example, the terminal device of the first type and the terminal device of the second type have different processing time capabilities for data. For example, the minimum delay between receiving downlink data and sending feedback on the downlink data by the second type terminal equipment is smaller than the minimum delay between receiving downlink data and sending feedback on the downlink data by the first type terminal equipment. The minimum delay between the second type terminal equipment sending the uplink data and receiving the feedback of the uplink data is smaller than the minimum delay time between the first type terminal equipment sending the uplink data and receiving the feedback of the uplink data. For another example, the maximum transmission block size (transmission block size, TBS) that can be processed by the terminal device of the first type is smaller than the TBS that can be processed by the terminal device of the second type. For another example, the maximum downlink modulation order (for example, 64QAM) that the first type terminal equipment can handle is smaller than the maximum downlink modulation order (for example, 256QAM) that the second type terminal equipment can handle, and/or the first type terminal equipment can handle. The maximum uplink modulation order (for example, 64QAM or 16QAM) is smaller than the maximum uplink modulation order (for example, 256QAM or 64QAM) that the second type terminal equipment can handle. For another example, the number of hybrid automatic repeat requests (hybrid Automatic Repeat reQuest, HARQ) supported by the terminal device of the first type is less than the number of HARQs supported by the terminal device of the second type.

8. The transmission rate of the peak uplink (or downlink) transmission of the second type of terminal equipment is different from the peak uplink (or downlink) transmission rate corresponding to the first type of terminal equipment. The peak uplink (or downlink) transmission rate corresponding to the terminal equipment of the first type is lower than the peak transmission rate of the uplink (or downlink) transmission of the terminal equipment of the second type.

In the embodiments of the present application, the first type of terminal device is an NR RedCap terminal device as an example.

FIG. 5 shows a system architecture diagram of a wireless access applicable to an embodiment of the present application. As shown in the figure, the network device and the terminal device of the present application are connected through an air interface.

In this application, a terminal device, including a device that provides voice and/or data connectivity to a user, may for example include a handheld device with wireless connectivity, or a processing device connected to a wireless modem. More specifically, for example, it may be an LTE terminal, a 5G terminal, and a UE.

Network devices, including access network (AN) devices, such as base stations (eg, access points), may refer to devices in the access network that communicate with wireless terminal devices through one or more cells over the air interface. Optional, for example, can be: LTE eNB/HeNB/Relay/Femto/Pico, 5G base station.

Description of the terminal device: In this application, the terminal device may also include a relay (Relay), and any device that can perform data communication with a network device may be regarded as a terminal device.

In this application, a cell can be understood as a carrier.

It should be noted that, in this application, although low-capacity or low-cost or low-complexity terminal equipment is used as an example for description, the enumerated embodiments are also applicable to other types of terminal equipment, such as NR Rel-17 or and later terminal equipment. For ease of description, this application takes the NR RedCap UE as an example for description.

It should be noted that in this application, the data transmission frequency resources, or the maximum frequency resources used for PUSCH transmission, the maximum frequency resources used for PUCCH transmission, and the maximum frequency resources used for NR RedCap UE preamble transmission are all determined by continuous It consists of resource blocks (RBs).

The embodiments provided by the present application will be described in detail below with reference to the accompanying drawings.

FIG. 6 is a schematic flowchart of a wireless access method applicable to an embodiment of the present application. Method 600 may include the following steps.

In the following embodiments, for the sake of distinction and without loss of generality, the first device is used to represent the network device, and the second device is used to represent the first type of terminal device (for example, NR RedCap UE).

It should be understood that the first device may also have other forms, for example, both the first device and the second device may be first-type terminal devices, or the first device may also be a second-type terminal device (NR Legacy UE, such as NR eMBB UE), the second device may be the first type of terminal device. There is no limitation here.

It should be understood that in this application, the main difference between the first type of terminal equipment and the second type of terminal equipment lies in the different bandwidth capabilities. However, in the specific implementation process, the difference between the first type of terminal equipment and the second type of terminal equipment is not limited to bandwidth. Different capabilities may also have the distinguishing features described above, that is, different bandwidth capabilities are not required distinguishing features.

S601 The first device determines a frequency resource set.

It should be understood that, in some specific embodiments, when the first device can directly determine the target frequency resource, this step is an optional step, and the first device can directly determine the target frequency resource and indicate to the second device through the indication information. equipment. The target frequency resource is one frequency resource among at least two first frequency resources, and the first frequency resource is used to transmit random access uplink data of the first type terminal equipment.

It should be understood that, in order to make the description clearer, the embodiment of the present application introduces the concept of a frequency resource set, that is, a frequency resource set is a resource set of at least two first frequency resources. In the specific implementation process, the first device determines The essence of the frequency resource set is to determine at least two first frequency resources, regardless of whether the at least two first frequency resources are specific forms of resource sets. It should be noted that the concept of resource sets in the embodiments of this application is not limited The aggregate form of at least two first frequency resources, and it is also not limited that at least two first frequency resources have aggregate identifiers, wherein at least two first frequency resources may be continuous or scattered, and are collectively referred to only for ease of elaboration collection of resources.

In the initial access configuration information, the first device will configure frequency resources for transmitting random access uplink data of the second device, where the random access uplink data includes at least one of the following: during the random access process The transmitted preamble sequence preamble, Msg 3 transmitted in the random access process, Msg A transmitted in the random access process, HARQ-ACK transmission for Msg 2 in the random access process, for the HARQ-ACK transmission in the random access process HARQ-ACK transmission of Msg B. The frequency resource consists of continuous frequency domain resource units (eg RE, or RB). The frequency domain resource unit may be represented by a subcarrier, or by a resource element (RE), or by a resource block (resource block, RB), or by other frequency domain resource units. As in this application, the frequency resource used for transmitting random access uplink data may be referred to as a bandwidth part (bandwidth part, BWP) or an uplink initial BWP.

It should be noted that, in the present application, the frequency resource used for transmitting the random access uplink data of the second device may also be used for transmitting the random access uplink data of the second type terminal device. For example, the BWP for random access uplink data configured by the first device for the second device may include random access uplink data for transmitting the second type of terminal device.

Optionally, the first device further configures frequency resources for transmitting random access uplink data of the second type of terminal device. It should be noted that when the first device is respectively configured with frequency resources for transmitting random access uplink data of the second device and frequency resources for transmitting random access uplink data of the second type of terminal device , the frequency resource for transmitting the random access uplink data of the second device and the frequency resource for transmitting the random access uplink data of the second type device may be frequency division multiplexing (frequency division multiplexing, FDM), Or the frequency domain resources are partially overlapped, or the frequency resources used for transmitting random access uplink data of the second type terminal equipment include frequency resources used for transmitting random access uplink data of the second equipment.

For example, in this application, the network device configures a BWP set (corresponding to a frequency resource set) for the NR RedCap terminal device to transmit random access uplink data for the NR RedCap terminal device, and the set includes at least two uplink initial BWPs, at least two The uplink initial BWPs can be used only for NR RedCap terminal equipment to transmit random access uplink data, or at least two uplink initial BWPs include one BWP that is used for NR Legacy terminal equipment to transmit random access uplink data, that is, NR Legacy terminal equipment The upstream initial BWP corresponding to the device.

Exemplarily, the first device will determine a set of frequency resources, where the set of frequency resources includes at least two first frequency resources, the first frequency resources are used to transmit random access uplink data of the first type of terminal device, and the target frequency resources is a frequency resource in the frequency resource set.

Further, after the frequency resource set is determined, the first device may notify the second device of the frequency resource set by means of broadcast information notification or RRC dedicated signaling, which is not limited in this application.

S602, the first device sends indication information to the second device.

Exemplarily, the first device sends indication information, where the indication information is used to indicate a parameter of the frequency resource set.

For example, the indication information may be used to indicate at least one of the following parameters: the number of first frequency resources included in the frequency resource set, the frequency domain location of the first frequency resources included in the frequency resource set, the The size of the resource block of the first frequency resource, the second device may determine the frequency domain configuration parameter of the first frequency resource included in the frequency resource set according to the foregoing indication information. The parameters of the frequency resource set may also include other configurations, such as configuration information of physical uplink shared channel (PDSCH) transmission included in the frequency resource, and/or physical uplink control channel (physical uplink control channel, PUCCH) Transmission configuration information.

For example, the first device sends indication information indicating at least two BWP configuration information used for transmitting the random access uplink data of the second device.

It should be understood that the first frequency resource in this application may correspond to BWP.

It should be understood that the initial uplink BWP of the second device may be a first frequency resource, where the first frequency resource may not only be a frequency resource for ensuring random access data, but also a frequency resource for transmitting other data.

In a possible implementation manner, the first device may notify the second device of at least two first frequency resources by means of broadcast information notification.

Specifically, the first device may indicate at least two first frequency resources to the second device through the Location And Bandwidth for RedCap UE included in SIB1. That is, the first device can directly instruct the second device through SIB1 the frequency resources used for random access uplink data transmission by the second device (for example, the uplink initial BWP corresponding to the NR RedCap terminal device). For example, the frequency resource set includes N first frequency resources, and each first frequency resource may include a frequency resource used for random access by the second device for uplink data transmission, then the first device can directly access the The Location And Bandwidth for RedCap UE in SIB1 indicates the configuration information of the first frequency resource included in the frequency resource set to the second device.

It should be understood that the broadcast information here may be information carried by a physical broadcast channel (PBCH), for example, the information included in the MIB, or the information included in the control information for scheduling the transmission of the system information block SIB or the SIB. Information included in the information, wherein the control information for scheduling SIB transmission may be carried in the PDCCH, and the SIB information may be carried in the PDSCH.

In a possible implementation manner, the first device may notify the second device of the number N of the first frequency resources included in the frequency resource set by means of broadcast information notification. In addition to being directly indicated by SIB1 or other SIBs, it can also be indicated by information carried by PBCH. Further optionally, when the information carried by the PBCH is notified, N can be indicated by a reserved bit (reserved bit) in the MIB or a reserved bit corresponding to the SSB index. For example, on the one hand, in a frequency range (frequency range 1, FR1) not greater than 6 GHz, the reserved bit corresponding to the SSB index has 2 bits, and through these 2 bits or 1 bit of them, the number N of the first frequency resources can be indicated, wherein, N is an integer greater than or equal to 2. On the other hand, on FR2 greater than 6GHz, due to more beam directions, the reserved bit corresponding to the SSB index is 0 bit, but considering the initial access, the bandwidth capability corresponding to the second device is not less than 50MHz or not less than 100MHz, in this case, only one first frequency resource may be defined for the second device, or the second device and the second type terminal device may share the initial uplink BWP, so the FR2 may not consider the first frequency resource for the second device. The second device defines a set of frequency resources. That is, preferably, in this solution, only for FR1, for the second device, a frequency resource set is defined, and the parameters of the frequency resource set can be indicated by the reserved bit corresponding to the SSB index.

In a possible implementation manner, the first device may indicate the frequency resource set to the second device through RRC dedicated signaling.

Specifically, the first device can configure the frequency resource set through RRC dedicated signaling when the second device falls back to the RRC inactive state, which can be used by the second device in the non-connected state to pass One frequency resource in the set of frequency resources is used for transmitting the frequency resource of the random access uplink data of the first type terminal device and the first device performs data transmission.

S603, the second device determines the target frequency resource.

In order to ensure data transmission with the first device, the second device needs to establish a connection with the first device through a random access process, so that the first device can identify the second device and complete the subsequent data transfers. Taking the initial access as an example, the second type of terminal device is in an idle state, and the second device can achieve time-frequency synchronization and acquisition with the first device by receiving information sent by the first device. The initial access configuration information of the cell corresponding to the first device.

For example, the second device may determine one target frequency resource from the at least two first frequency resources by determining at least two first frequency resources.

It should be understood that the second device can not only determine at least two first frequency resources according to the indication information sent by the first device, but also can determine at least two first frequency resources according to the association relationship with other resources in the system. This application is not limited.

In a possible implementation manner, the second device may determine at least two first frequency resources according to the received indication information sent by the first device.

Specifically, the number N of the first frequency resources may be associated with the transmission bandwidth used for the downlink system information of the second type terminal equipment, and the larger the bandwidth, the larger the number N.

Specifically, the number N of the first frequency resources may be associated with frequency resources used for transmitting random access uplink data of the second type of terminal equipment. The network device notifies, through SIB1, the configuration information of the frequency resources used for transmitting the random access uplink data of the second type terminal equipment (for example, the configuration information of the uplink initial BWP used for transmitting the random access uplink data of the second type terminal equipment), The first type terminal equipment determines the first frequency resource according to a preset rule (that is, the association relationship between the number N of the first frequency resources and the frequency resources used to transmit the random access uplink data of the second type terminal equipment). number N. The larger the frequency resources used for transmitting the random access uplink data of the second type terminal equipment, the larger the number N of the first frequency resources.

Specifically, the number N of the first frequency resources may be associated with the carrier bandwidth notified by the network device or with the frequency band where the system carrier is located. For example, the network device notifies the terminal device of the system carrier bandwidth information through SIB1, and the second device determines the number N of the first frequency resources according to the correlation between the number N of the first frequency resources and the system carrier bandwidth. The larger the system carrier bandwidth is, the larger the number N of the first frequency resources is.

It should be understood that the second device can be based on the bandwidth of the system carrier, the frequency band where the system carrier is located, the frequency resources used to transmit the random access uplink data of the second type of terminal equipment, and the downlink system used to transmit the second type of terminal equipment. One or more of the information transmission bandwidths determine the number N of the first frequency resources, which is not limited in this application. Wherein, the transmission bandwidth used for transmitting the downlink system information of the second type terminal equipment may be the transmission bandwidth of the downlink initial BWP corresponding to the second type terminal equipment, for example, corresponding to CORESET#0 indicated by the pdcch-ConfigSIB1 control field in the MIB frequency domain resources.

Specifically, the first device sends indication information, and the second device determines the number of the first frequency resources in the frequency resource set according to the indication information. The specific form of the indication information may be broadcast information notification or RRC-specific signaling. For the broadcast information notification or RRC-specific signaling, please refer to S602, which will not be repeated here for brevity.

In another possible implementation manner, the second device determines the first frequency resource according to the quantity of the first frequency resource.

Specifically, the second device may determine at least one first frequency resource in the set of frequency resources according to the number N of the first frequency resources and the frequency resources used for transmitting the random access uplink data of the second type terminal device, for example, determine The frequency location of each first frequency resource.

For example, FIG. 7 is a schematic diagram of determining the size of the first frequency resource, for example, a schematic diagram of determining the size of a resource block of the first frequency resource, applicable to an embodiment of the present application. As shown in the figure, the first device notifies the second device through the indication information to determine the number N of the first frequency resources, where N is an integer greater than or equal to 2, and the second device determines the number N of the first frequency resources according to the number of the first frequency resources. N and the frequency resource for transmitting random access uplink data of the second type terminal equipment, determine the size of the resource block of each frequency resource in the N first frequency resources in the disconnected state, where N=2.

Assume that the frequency resources used to transmit random access uplink data of the second type terminal equipment include M consecutive RBs, where M is an integer greater than or equal to 1, if M is divisible by N, then the resources of each first frequency resource The size of the block can be M/N RBs; if M is not divisible by N, the size of the resource block of the N-1 first frequency resources is ceiling(M/N) or floor(M/N), The size of the resource block of another first frequency resource is M-(N-1)*ceiling(M/N) or M-(N-1)*floor(M/N), where ceiling(M/ N) represents an integer larger than M/N and closest to M/N, and floor(M/N) represents an integer smaller than M/N and closest to M/N. In this embodiment of the present application, the starting point or the ending point of the first frequency resource may be the starting point or the starting point of the frequency resource for transmitting random access uplink data of the second type terminal equipment (for example, the uplink initial BWP corresponding to the second type terminal equipment) or The end points are aligned, and then the end point or the start point of the first frequency resource is determined by using the determined size of the resource block of the first frequency resource. Taking FIG. 7 as an example, the start point (or end point) of the first frequency resource #1 is aligned with the start point of the frequency resource used to transmit the random access uplink data of the second type terminal equipment, and the resource block size of the first frequency resource #1 Determined in the above manner, and combining these two features, the second device can determine the end point (or start point) of the first frequency resource #1. The second frequency resource is described in the same manner and will not be described repeatedly.

FIG. 8 is another schematic diagram for determining the size of the first frequency resource applicable to the embodiment of the present application. As shown in the figure, according to the number N of the first frequency resources and the frequency resources used for transmitting the random access uplink data of the second type terminal equipment, the second device can also be understood that the second device can The number N of frequency resources and part of the frequency resources used for transmitting the random access uplink data of the second type terminal equipment determine the N first frequency resources that can be used for data transmission in the disconnected state. The determination of the size of the resource block of each first frequency resource is the same as the above description, and the determination of the starting point or the end point of each first frequency resource is similar to the above description, except that the random access used for transmitting the second type terminal equipment needs to be used here. The start point or end point of the frequency resource for incoming uplink data is replaced with the start point or end point of some frequency resources used to transmit random access uplink data of the second type of terminal equipment, which is not repeated here for brevity.

It should be noted that, in this embodiment of the present application, the resource block size of the first frequency resource included in the frequency resource set may be the resource block size corresponding to the bandwidth capability of the second device, for example, the bandwidth of the first frequency resource may be 20 MHz , 10MHz, or 5MHz. The starting point or the end point of the first frequency resource can be determined by the number N of the first frequency resource and the frequency resource used for transmitting the random access uplink data of the second type terminal equipment, or part of it is used for transmitting the random access of the second type terminal equipment. The frequency resource of uplink data is determined.

For example, the second device may determine the position of each first frequency resource in the frequency resource set according to the number N of first frequency resources and the number of random access preamble RACH resources, where the random access preamble resource is used to indicate At least one of the following: the terminal device transmits code resources, time resources, and frequency resources corresponding to the preamble sequence Preamble. For example, the code resource corresponding to the sending preamble sequence preamble can be represented by the preamble root sequence and cyclic shift, the frequency resource corresponding to the preamble sequence preamble can be represented by the frequency division multiplexing RACH occasion (FDMed RACH occasion, FDMed RO), the preamble sequence corresponding to the preamble sequence Time resources may be represented by RACH slots, and/or RACH cycles. Wherein, the random access preamble resources are resources that the network device can pre-configure for the first type of terminal equipment for the first device, and can also pre-configure the resources for the second type of terminal equipment for the first device. Do limit.

In this manner, the description of the broadcast information and the RRC dedicated signaling are the same as those described above, and will not be repeated for brevity.

FIG. 9 is a schematic diagram of a method for configuring a preamble resource according to random access, which is applicable to an embodiment of the present application. The second device may determine N first frequencies according to the number K of frequency division multiplexing (frequency domain multiplexing, FDM) RACH occasions (RACH occasion, RO) included in the RACH resources, and the number N of first frequency resources. The location of the resource. In the NR system, the RACH resource configuration is shown in Figure 9, that is, in a RACH configuration period (RACH configuration period), at least one time-domain RACH occasion (time RACH occasion) will be included, and one time RACH occasion will be It includes at least 1 and at most 8 FDMed ROs. In the figure, K=4 is used as an example for illustration, that is, the FDMed RO can represent the frequency resource position corresponding to the RACH resource. The frequency resource location information of the first frequency resource is at least two items of information among a start location, an end location, and a bandwidth location of the first frequency resource.

FIG. 10 is a schematic diagram of determining the position of the first frequency resource applicable to the embodiment of the present application. As shown in the figure, assuming that the index index corresponding to FDMed ROs is 0 to K-1 (to simplify the description, the index index corresponding to FDMed ROs is represented by RO index), then it can satisfy RO index mod(ceil(K/N) The RO index corresponding to )=0 is used as the starting point of a first frequency resource, where ceil(K/N) can also be represented by floor(K/N). For example, K=4, assuming N=2, then the RO index satisfying RO index mod(ceil(4/2))=0 can be 0, 2, then the starting points of the two first frequency resources can be RO index= The frequency position corresponding to the lowest RB of the frequency resource corresponding to 0 (frequency position 1), and the frequency position corresponding to the lowest RB of the first frequency resource corresponding to RO index=2 (frequency position 2), correspondingly, the frequency position 1 is used as the starting point. The end point of the first frequency resource may be frequency position 2, and the end point of the first frequency resource starting from frequency position 2 may be the frequency position (frequency position 3) corresponding to the highest RB of the frequency resource corresponding to RO index K-1, or The end point of the first frequency resource with frequency position 2 as the starting point may also be the frequency position corresponding to the highest RB of the frequency resource corresponding to the uplink initial BWP including the FDMed RO (frequency position 4, here it is assumed that the frequency The frequency resource size does not exceed the bandwidth capability of the second device).

For example, take the RO index corresponding to RO index mod(ceil(K/N))=0 as the starting point of the first frequency resource, and the end point corresponding to the first frequency resource can be determined according to the bandwidth capability corresponding to the second device (that is, according to The frequency bandwidth between the start point and the end point of the first frequency resource determined in this way is equal to the bandwidth capability corresponding to the second device); alternatively, the end point corresponding to the first frequency resource can also be determined according to the boundary of the initial BWP including the FDMed RO , and at the same time ensure that the frequency bandwidth between the starting point and the end point corresponding to the data transmission frequency is not greater than the bandwidth capability corresponding to the second device; or, the end point corresponding to the first frequency resource may also have the highest RB of the frequency resource corresponding to another RO index. The corresponding frequency position or the frequency position corresponding to the lowest RB. It should be noted that the magnitude relationship between the absolute frequencies corresponding to the start point and the end point of the first frequency resource is not limited, that is, the absolute frequency corresponding to the start point of the first frequency resource may be smaller than the absolute frequency corresponding to the end point of the first frequency resource. , or, it may also be greater than the absolute frequency corresponding to the end point of the first frequency resource.

It should be understood that the index corresponding to the FDMed RO can be understood as, in a time domain RACH occasion included in the RACH resource configuration, the included FDMed ROs are arranged in a corresponding order according to the frequency position from small to large (or from large to small). For example, RO#0~RO#3 corresponding to the frequency position from small to large in the above figure.

In another possible implementation manner, the second device may determine the first frequency resource according to the uplink system carrier bandwidth notified by the first device.

Specifically, the second device may determine the starting point or the end point of the first frequency resource according to the uplink system carrier bandwidth and the number of first frequency resources notified by the first device, and then determine that the channel transmission bandwidth of the second device is The size of the first frequency resource.

Specifically, the second device may determine the start point and size of the first frequency resource, or determine the end point and the first frequency resource of the first frequency resource by using the uplink system carrier bandwidth and the number of the first frequency resource. the size of.

By determining the at least two first frequency resources, the second device may determine the target frequency resource according to the information of the at least two first frequency resources.

In a possible implementation manner, the association between the target frequency resource and the SSB may be embodied by the association between the number P of SSBs actually sent by the first device and the target frequency resource in the first frequency resource.

Specifically, the first device may indicate the number P of SSBs actually sent through the indication information, and different SSBs correspond to different first frequency resources, and the second device may select the SSB and the difference between the SSB and the first frequency resource according to the selected SSB. The relationship between the two is determined, and one target frequency resource is determined from the first frequency resource. Wherein, the first device may indicate by means of broadcast information notification or by means of RRC dedicated signaling, which is not limited in this application.

For example, the first device may indicate the actually sent SSB quantity P to the second device by sending indication information, where the indication information may be broadcast information, and the specific implementation of the P indicated based on broadcast information may be Referring to the previous description, for the sake of brevity, details are not repeated here; alternatively, the first device may also indicate P through RRC dedicated signaling, for example, the first device may use RRC dedicated signaling when the RedCap UE falls back to the RRC inactive state. Signaling indicates P.

Specifically, FIG. 11 is a schematic diagram of determining target frequency resources applicable to the present application. Different SSBs determined in the initial access process of the second device are associated with the first frequency resource, preferably, one SSB corresponds to one first frequency resource, or multiple SSBs may correspond to the same first frequency resource , but each first frequency resource in the frequency resource set has a corresponding SSB. The association relationship between different SSBs and the N first frequency resources may be as shown in FIG. 11 , or other methods may be used, which are not specifically limited here. The number of SSBs corresponding to each first frequency resource in the frequency resource set may be determined according to P/N. When P cannot be divisible by N, an implementation manner is that N-1 first frequency resources may correspond to ceiling(P/N) or floor(P/N) SSBs, of which 1 first frequency resource can correspond to N-(N-1)*ceiling(P/N) or N-(N-1)*floor( P/N) SSBs. After determining the number of SSBs corresponding to each first frequency resource in the frequency resource set, the SSBs actually sent by the first device can be determined in the order of the SSB index from small to large to determine the number of SSBs corresponding to each first frequency resource in the frequency resource set. The actual SSB sent. As shown in the figure, P=5, N=2, then the number of SSBs corresponding to one first frequency resource in the frequency resource set may be 3, and the number of SSBs corresponding to another first frequency resource may be 2, and then combined SSB index, the 3 SSBs at the top of the index can be mapped to a first frequency resource in the frequency resource set with a lower frequency resource position, and the remaining 2 SSBs can be mapped to the frequency resource set with a higher frequency resource position. 1 of the first frequency resource.

Specifically, FIG. 12 is another schematic diagram of a method for determining a first frequency resource applicable to an embodiment of the present application. As shown in the figure, the association relationship between different SSBs and the N first frequency resources may be determined according to the relationship between the index value corresponding to the actually sent SSB and the number N of the first frequency resources. Take the frequency band not lower than 3GHz and not greater than 6GHz on FR1 as an example. Within this frequency band, the first device can send a maximum of 8 SSBs, and the corresponding SSB indices are 0 to 7 respectively. In the figure, 5 SSBs are actually sent. For example, the actually sent SSB index is 0/1/2/5/7. One way to realize the relationship between the SSB index value index and N is to determine the frequency resource sets corresponding to different SSBs through the result of index mod N One of the first frequency resources in , where mod represents the operation of taking the remainder. Based on this, in FIG. 12 , an SSB whose remainder result is 0 may correspond to one first frequency resource, and an SSB whose remainder result is 1 may correspond to another first frequency resource. In this implementation manner, the SSB index value can also be represented in other ways. For example, the actually sent SSBs can be sorted and numbered in the set of actually sent SSBs, taking FIG. 12 as an example, except that the SSB index 0/1/ 2/5/7 means SSB index, it can also be expressed by SSB index'0~4, where SSB index 0/1/2/5/7 can correspond to SSB index'0/1/2/3/4 respectively, At this time, the result of SSB index' mod N can be used to determine one first frequency resource in the frequency resource resource set corresponding to different SSBs.

After determining the different frequency resources in the corresponding first frequency resources between different SSBs and the first frequency resources, the second device can select the SSB and one first frequency in the frequency resource set corresponding to the SSB according to the resource, one first frequency resource can be determined.

For example, in the initial access stage, the second device can select an appropriate SSB according to the received SSB, and once the SSB is selected, it can determine the first frequency resource corresponding to the SSB, that is, the target frequency resource, and then can Use the target frequency resource to complete random access uplink data transmission or other data transmission.

Specifically, the association relationship between the first frequency resource and the SSB may be embodied by the association relationship between the maximum number of SSBs that can be sent by the first device, L, and the first frequency resource. The maximum number L of SSBs that can be sent by the first device has an associated relationship with the first frequency resource, different SSBs can correspond to different first frequency resources, and the second device selects the SSB and the SSB and the first frequency according to the selected SSB. The association relationship between the resources is to determine one frequency resource for transmitting the random access uplink data of the second type terminal equipment. Wherein, the maximum number L of SSBs that can be sent by the first device is predefined, and for a frequency band whose center frequency is sub3GHz, L=4; for a frequency band whose center frequency is not greater than 6GHz, L=8; For the frequency band whose center frequency point is greater than 6GHz, L=64. In the specific implementation manner, the number P of SSBs actually sent in the above-mentioned implementation manner may be replaced by the maximum number of SSBs that can be sent, L, and other operation modes remain unchanged, and will not be described repeatedly.

In another possible implementation manner, the first device may directly indicate an association relationship between the first frequency resource and the SSB, and the association relationship is used to determine that after the second device selects the SSB, The first frequency resource associated with the SSB sends random access uplink data or other uplink data. When configuring the data transmission frequency resource, the first device may directly configure the SSB information associated with the first frequency resource through the following fields. The UL initial BWP is a specific example of the first frequency resource, and it is also a specific example that the first device notifies the association through SIB1. The first device may also notify in other ways, for example, through other broadcast information or RRC proprietary information, and the structure of the notification is not specifically limited.

The second device can determine the target frequency resource according to the association relationship indicated by the first device and in combination with selecting the determined SSB.

The advantage of the second device determining the target resource in the first frequency resource according to the relationship between the first frequency resource and the SSB is that the implementation is simple, because in the NR system, the SSB can represent different beam directions, while the system The geographical distribution of the second equipment in the above determines that the SSB beam directions selected by the second equipment in different geographical locations are different, so naturally, it is possible to realize the diversion on the first frequency resources of the different second equipment, Realize business load balancing and ensure data transmission efficiency on each first frequency resource.

In another possible implementation manner, the second device determines one first frequency resource as the target frequency resource according to the association relationship between the first frequency resource and the RACH resource.

Specifically, FIG. 13 is a schematic diagram of determining target frequency resources applicable to the present application. Arrange the RACH resources in a specific time interval in the order of FDMed RO, Time Division Multiplexing (TDM) RACH opportunity TDMed RO in a RACH time slot, and RACH time slot in a specific time interval. Arrange all RACH resources together , number the RACH resources arranged together, and then determine according to the sequence mapping or the method of taking the remainder of the number N of the first frequency resources (refer to (1) in the above-mentioned relationship between the first frequency resources and the SSB). First frequency resources corresponding to different RACH resources. As shown in the figure, it is assumed that a specific time interval is the RACH resource configuration period. In a RACH configuration period, two RACH time slots are included, and each time slot includes one TDMed RO. On the time resource corresponding to each TDMed RO, Includes 4 FDMed ROs. In one RACH configuration period, the numbers corresponding to different RACH resources are marked as shown in the figure.

It should be noted that the specific time interval may be an RACH configuration period, or may also be an association pattern period (association pattern period) including an association relationship between the SSB and the RACH resource.

In a possible implementation manner, the second device may further determine frequency resources corresponding to different RACH resources for transmitting random access uplink data of the second type of terminal device according to the following sequence.

For example, first, if the number of FDMed RO resources is greater than or equal to the number N of the first frequency resources, the second device can directly determine the target frequency resource in the first frequency resources corresponding to different RACH resources according to the FDMed RO; otherwise, if The number of TDMed RO resources in a RACH time slot is greater than or equal to the number N of the first frequency resources, and the second device can determine the target frequency resources in the first frequency resources corresponding to different RACH resources according to the TDMed RO; The configuration period or the RACH slot in the associated diagram period is used to determine the target frequency resource in the first frequency resources corresponding to different RACH resources.

It should be understood that a plurality of preamble sequences may be included in one FDMed RO, but preferably, when determining the first frequency resource corresponding to the RACH resource, different preambles in the same FDMed RO may correspond to the same first frequency resource, that is, in When determining the number of RACH resources above, the preamble in the same FDMed RO may not be counted. The advantage of this implementation is that it is simple to implement, because considering the system carrier bandwidth, even if the first frequency resource dedicated to the second device is configured, the number may not be large. In this case, when determining the ratio between the RACH resource and the first frequency resource There is no need to further subdivide the multiple preambles included in the FDMed RO.

In another possible implementation manner, when configuring the first frequency resource, the first device may simultaneously indicate the RACH resource corresponding to the first frequency resource, or may also indicate the RACH resource index corresponding to different first frequency resources . For example, the first device may directly indicate the association relationship between the first frequency resource and the RACH resource or the RACH resource index, where the RACH resource index may be determined according to the foregoing manner. The association relationship is used to determine that after the second device selects a preamble that needs to be used for random access, it can send random access uplink data or other uplink data through the first frequency resource associated with the preamble sequence.

It should be noted that, in the NR system, there is a preset association relationship between the SSB and the RACH resource sent by the first device, so that the first device can use the information used by the second device in the random access process. The RACH resource determines the best downlink beam direction for downlink data transmission in the disconnected state to ensure data transmission efficiency, wherein the RACH resource used by the second device in the random access process is determined by the second device. RACH resources. Therefore, in this embodiment of the present application, since different first frequency resources include RACH resources used for transmission by the second device in the random access process, the association relationship between the SSB and the RACH resources can be achieved through the following two The method is determined: one is to define the association relationship between the SSB actually sent (or the maximum sent) by the first device and the RACH resource corresponding to each first frequency resource, that is, the RACH resource on each first frequency resource can be Corresponding to all the SSBs sent by the first device; the other is to take all the RACH resources corresponding to all the first frequency resources included in the frequency resource set as a whole, and define the SSB actually sent (or the maximum sent) by the first device and the RACH resource as a whole In this case, the RACH resource of each first frequency resource may correspond to a partial SSB in the SSB actually sent by the first device, or a partial SSB in the SSB sent by the first device at maximum.

For example, the first device may indicate the target frequency resource to the second device by means of indication information.

Specifically, the first device may determine the target frequency resource, and indicate the target frequency resource to the second device by means of broadcast information notification or in the form of RRC dedicated signaling, and the second device may indicate by the indication information The target frequency resource is directly determined. For the form of broadcast message notification and RRC dedicated signaling, reference may be made to S602, which is not repeated here for brevity.

S604, the second device transmits random access uplink data to the first device.

Exemplarily, after determining the target frequency resource, the second device transmits random access uplink data such as PUSCH transmission included in Msg 3 or Msg A, or PUCCH transmission including HARQ-ACK for Msg 4 or Msg B, the The first device receives random access uplink data from the second device on the target frequency resource.

It should be understood that this embodiment takes one terminal device in the first type of terminal device, that is, the second device as an example, however, the frequency resource set may be a frequency resource set suitable for the first type of terminal device.

Based on the above embodiment, the advantage of determining a first frequency resource through the frequency resource set is that the SSB and RACH resources are information that the second device can obtain before entering the RRC connection state, so the second device has not communicated with the first device yet. Before establishing the RRC connection, the frequency resource range of the first frequency resource can be determined, so as to realize the frequency hopping transmission of the PUSCH and PUCCH transmission channels, and ensure the data transmission performance before the RRC connection state.

In this embodiment of the present application, the frequency resource consists of N continuous/non-consecutive PRBs/RBs, where N is a positive integer. Exemplarily, the frequency domain resources are composed of N consecutive PRBs/RBs, and the frequency resources here include the target frequency resources, the first frequency resources, and the second frequency resources in the embodiments of the present application. For example, the frequency resource may be BWP.

In this embodiment of the present application, the target frequency resource determined by the first type terminal device from the at least two first frequency resources may be configured by a network device (as an implementation manner of the first device in this embodiment of the present application), or It can be understood as enabled through the network. If the network device is not configured with this function, there may be only one frequency resource for transmitting random access uplink data corresponding to the first type of terminal device, and it may also be understood that the first frequency resource is the target frequency resource.

It should be noted that the target frequency resources and the first frequency resources in the embodiments of the present application can not only be used to transmit uplink data of the first type of terminal equipment in the RRC idle state, but also can be used to transmit the first type of terminal equipment in the RRC connection. status or inactive uplink data.

The various embodiments described herein may be independent solutions, or may be combined according to internal logic, and these solutions all fall within the protection scope of the present application.

It can be understood that, in the above method embodiments, the methods and operations implemented by the terminal device can also be implemented by components (such as chips or circuits) that can be used in the terminal device, and the methods and operations implemented by the network device can also be implemented by A component (eg, chip or circuit) implementation that can be used in a network device.

In the above, the methods provided by the embodiments of the present application are described in detail with reference to FIGS. 6 to 13 . Hereinafter, the communication apparatus provided by the embodiments of the present application will be described in detail with reference to FIG. 14 to FIG. 17 . It should be understood that the description of the apparatus embodiment corresponds to the description of the method embodiment. Therefore, for the content not described in detail, reference may be made to the above method embodiment, which is not repeated here for brevity.

The foregoing mainly introduces the solutions provided by the embodiments of the present application from the perspective of interaction between various network elements. It can be understood that each network element, such as a transmitter device or a receiver device, includes hardware structures and/or software modules corresponding to performing each function in order to implement the above functions. Those skilled in the art should realize that the present application can be implemented in hardware or a combination of hardware and computer software with the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

In this embodiment of the present application, the transmitting-end device or the receiving-end device may be divided into functional modules according to the foregoing method examples. For example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. middle. The above-mentioned integrated modules can be implemented in the form of hardware, and can also be implemented in the form of software function modules. It should be noted that, the division of modules in the embodiments of the present application is schematic, and is only a logical function division, and there may be other division manners in actual implementation. The following description will be given by taking as an example that each function module is divided corresponding to each function.

FIG. 14 is a schematic block diagram of a communication apparatus provided by an embodiment of the present application. The communication device 1400 includes a transceiver unit 1410 and a processing unit 1420 . The transceiver unit 1410 can implement corresponding communication functions, and the processing unit 1410 is used for data processing. Transceiver unit 1410 may also be referred to as a communication interface or a communication unit.

In a possible implementation manner, the communication apparatus 1400 may further include a storage unit, which may be used to store instructions and/or data, and the processing unit 1420 may read the instructions and/or data in the storage unit, so that the The communication apparatus implements the foregoing method embodiments.

The communication apparatus 1400 may be used to perform the actions performed by the terminal device in the above method embodiments. In this case, the communication apparatus 1400 may be a terminal device or a component that can be configured in the terminal device, and the transceiver unit 1410 is used to perform the above method. For the operations related to sending and receiving on the side of the terminal device in the embodiment, the processing unit 1420 is configured to perform the operations related to the processing on the side of the terminal device in the above method embodiments.

Alternatively, the communication apparatus 1400 may be used to perform the actions performed by the network equipment in the above method embodiments. In this case, the communication apparatus 1400 may be a network equipment or a component configurable in the network equipment, and the transceiver unit 1410 is used to perform the above The processing unit 1420 is configured to perform the operations related to the processing on the network device side in the above method embodiments.

As a design, the communication apparatus 1400 is used to perform the actions performed by the terminal device in the embodiment shown in FIG. 6 above, the transceiver unit 1410 is used for: S602, S604; the processing unit 1420 is used for: S603.

The communication apparatus 1400 may implement the steps or processes performed by the terminal device corresponding to the method 600 according to the embodiment of the present application, and the communication apparatus 1400 may include a unit for executing the side executed by the terminal device in the method 600 in FIG. 6 . Moreover, each unit in the communication apparatus 1400 and the other operations and/or functions mentioned above are respectively for realizing the corresponding flow of the method 600 in FIG. 6 .

It should be understood that the specific process of each unit performing the above-mentioned corresponding steps has been described in detail in the above-mentioned method embodiments, and for the sake of brevity, it will not be repeated here.

As another design, the communication apparatus 1400 is configured to perform the actions performed by the network device in the embodiment shown in FIG. 6 above, the transceiver unit 1410 is used for: S602, S604; the processing unit 1420 is used for: S601.

The communication apparatus 1400 may implement steps or processes corresponding to the method performed by the network device in the method 600 according to the embodiment of the present application, and the communication apparatus 1400 may include a unit for performing the method performed by the network device in the method 600 in FIG. 6 . . Moreover, each unit in the communication apparatus 1400 and the other operations and/or functions mentioned above are respectively for realizing the corresponding flow of the method 600 in FIG. 6 .

Wherein, when the communication device 1400 is used to execute the block 600 in FIG. 6 , the transceiver unit 1410 can be used to execute steps S602 and S604 in the method 600 .

The processing unit 1420 in the above embodiments may be implemented by at least one processor or processor-related circuits. The transceiver unit 1410 may be implemented by a transceiver or a transceiver-related circuit. Transceiver unit 1410 may also be referred to as a communication unit or a communication interface. The storage unit may be implemented by at least one memory.

As shown in FIG. 15 , an embodiment of the present application further provides a communication apparatus 1500 . The communication device 1500 includes a processor 1510 coupled with a memory 1520 for storing computer programs or instructions and/or data, and the processor 1510 for executing the computer programs or instructions and/or data stored in the memory 1520, The methods in the above method embodiments are caused to be executed. The memory 1520 is optional.

In a possible implementation manner, the communication apparatus 1500 includes one or more processors 1510 .

In a possible implementation manner, as shown in FIG. 15 , the communication apparatus 1500 may further include a memory 1520 .

In a possible implementation manner, the communication device 1500 may include one or more memories 1520 .

In a possible implementation manner, the memory 1520 may be integrated with the processor 1510, or provided separately.

In a possible implementation manner, as shown in FIG. 15 , the communication apparatus 1500 may further include a transceiver 1530, and the transceiver 1530 is used for signal reception and/or transmission. For example, the processor 1510 is used to control the transceiver 1530 to receive and/or transmit signals.

As a solution, the communication apparatus 1500 is configured to implement the operations performed by the terminal device in the above method embodiments.

For example, the processor 1510 is configured to implement the processing-related operations performed by the terminal device in the above method embodiments, and the transceiver 1530 is configured to implement the above-mentioned method embodiments performed by the terminal device.

As another solution, the communication apparatus 1500 is configured to implement the operations performed by the network device in the above method embodiments.

For example, the processor 1510 is configured to implement the processing-related operations performed by the network device in the above method embodiments, and the transceiver 1530 is configured to implement the transceiving-related operations performed by the network device in the above method embodiments.

This embodiment of the present application further provides a communication apparatus 1600, where the communication apparatus 1600 may be a terminal device or a chip. The communication apparatus 1600 may be used to perform the operations performed by the terminal device in the foregoing method embodiments.

When the communication apparatus 1600 is a terminal device, FIG. 16 shows a schematic structural diagram of a simplified terminal device. As shown in FIG. 16 , the terminal device includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device. The processor is mainly used to process communication protocols and communication data, control terminal equipment, execute software programs, and process data of software programs. The memory is mainly used to store software programs and data. The radio frequency circuit is mainly used for the conversion of the baseband signal and the radio frequency signal and the processing of the radio frequency signal. Antennas are mainly used to send and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users. It should be noted that some types of terminal equipment may not have input and output devices.

When data needs to be sent, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal through the antenna in the form of electromagnetic waves. When data is sent to the terminal device, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes the data. For the convenience of description, only one memory and one processor are shown in FIG. 16, and in an actual terminal device product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or a storage device or the like. The memory may be set independently of the processor, or may be integrated with the processor, which is not limited in this embodiment of the present application.

In the embodiments of the present application, the antenna and the radio frequency circuit with a transceiver function may be regarded as a transceiver unit of the terminal device, and the processor with a processing function may be regarded as a processing unit of the terminal device.

As shown in FIG. 16 , the terminal device includes a transceiver unit 1610 and a processing unit 1620 . The transceiver unit 1610 may also be referred to as a transceiver, a transceiver, a transceiver, or the like. The processing unit 1620 may also be referred to as a processor, a processing board, a processing module, a processing device, and the like.

In a possible implementation manner, the device used for implementing the receiving function in the transceiver unit 1610 may be regarded as a receiving unit, and the device used for implementing the sending function in the transceiver unit 1610 may be regarded as a sending unit, that is, the transceiver unit 1610 includes a receiving unit. unit and sending unit. The transceiver unit may also sometimes be referred to as a transceiver, a transceiver, or a transceiver circuit. The receiving unit may also sometimes be referred to as a receiver, receiver, or receiving circuit, or the like. The transmitting unit may also sometimes be referred to as a transmitter, a transmitter, or a transmitting circuit, or the like.

For example, in an implementation manner, the processing unit 1620 is configured to perform the processing actions on the terminal device side in FIG. 6 . For example, the processing unit 1620 is configured to perform the processing steps in step S603 in FIG. 6 ; the transceiving unit 1610 is configured to perform the transceiving operations in steps S602 and S604 in FIG. 6 .

It should be understood that FIG. 16 is only an example and not a limitation, and the above-mentioned terminal device including a transceiver unit and a processing unit may not depend on the structure shown in FIG. 16 .

When the communication device 1600 is a chip, the chip includes a transceiver unit and a processing unit. Wherein, the transceiver unit may be an input/output circuit or a communication interface; the processing unit may be a processor or microprocessor or integrated circuit integrated on the chip.

This embodiment of the present application further provides a communication apparatus 1700, where the communication apparatus 1700 may be a network device or a chip. The communication apparatus 1700 may be configured to perform the operations performed by the network device in the foregoing method embodiments.

When the communication apparatus 1700 is a network device, it is, for example, a base station. Fig. 17 shows a simplified schematic diagram of the structure of a base station. The base station includes part 1710 and part 1720. The 1710 part is mainly used for transmitting and receiving radio frequency signals and the conversion of radio frequency signals and baseband signals; the 1720 part is mainly used for baseband processing and controlling the base station. The 1710 part may generally be referred to as a transceiver unit, a transceiver, a transceiver circuit, or a transceiver. The 1720 part is usually the control center of the base station, which may be generally referred to as a processing unit, and is used to control the base station to perform the processing operations on the network device side in the foregoing method embodiments.

The transceiver unit of part 1710, which may also be called a transceiver or a transceiver, etc., includes an antenna and a radio frequency circuit, where the radio frequency circuit is mainly used for radio frequency processing. Optionally, the device used for implementing the receiving function in part 1710 may be regarded as a receiving unit, and the device used for implementing the sending function may be regarded as a sending unit, that is, part 1710 includes a receiving unit and a sending unit. The receiving unit may also be referred to as a receiver, a receiver, or a receiving circuit, and the like, and the transmitting unit may be referred to as a transmitter, a transmitter, or a transmitting circuit, and the like.

The 1720 portion may include one or more single boards, each of which may include one or more processors and one or more memories. The processor is used to read and execute the program in the memory to realize the baseband processing function and control the base station. If there are multiple boards, each board can be interconnected to enhance the processing capability. As an optional implementation manner, one or more processors may be shared by multiple boards, or one or more memories may be shared by multiple boards, or one or more processors may be shared by multiple boards at the same time. device.

For example, in an implementation manner, the transceiving unit in part 1710 is used to perform the steps related to transceiving performed by the network device in the embodiment shown in FIG. 6 ; the part 1720 is used for performing the steps performed by the network device in the embodiment shown in FIG. 6 processing related steps.

It should be understood that FIG. 17 is only an example and not a limitation, and the above-mentioned network device including a transceiver unit and a processing unit may not depend on the structure shown in FIG. 17 .

When the communication device 1700 is a chip, the chip includes a transceiver unit and a processing unit. The transceiver unit may be an input/output circuit or a communication interface; the processing unit may be a processor, a microprocessor or an integrated circuit integrated on the chip.

Embodiments of the present application further provide a computer-readable storage medium, on which computer instructions for implementing the method executed by the terminal device or the method executed by the network device in the foregoing method embodiments are stored.

For example, when the computer program is executed by a computer, the computer can implement the method executed by the terminal device or the method executed by the network device in the above method embodiments.

Embodiments of the present application further provide a computer program product including instructions, which, when executed by a computer, cause the computer to implement the method executed by the terminal device or the method executed by the network device in the above method embodiments.

An embodiment of the present application further provides a communication system, where the communication system includes the network device and the terminal device in the above embodiments.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the explanation and beneficial effects of the relevant content in any of the communication devices provided above may refer to the corresponding method embodiments provided above, which are not repeated here. Repeat.

In this embodiment of the present application, the terminal device or the network device may include a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer may include hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also called main memory). The operating system of the operating system layer may be any one or more computer operating systems that implement business processing through processes, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a Windows operating system. The application layer may include applications such as browsers, address books, word processing software, and instant messaging software.

The embodiments of the present application do not specifically limit the specific structure of the execution body of the methods provided by the embodiments of the present application, as long as the program in which the codes of the methods provided by the embodiments of the present application are recorded can be executed to execute the methods according to the embodiments of the present application. Just communicate. For example, the execution body of the method provided by the embodiment of the present application may be a terminal device or a network device, or a functional module in the terminal device or network device that can call a program and execute the program.

Various aspects or features of the present application may be implemented as methods, apparatus, or articles of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used herein may encompass a computer program accessible from any computer-readable device, carrier or media.

The computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server, data center, etc., which includes one or more available mediums integrated. Useful media (or computer-readable media) may include, but are not limited to, magnetic media or magnetic storage devices (eg, floppy disks, hard disks (eg, removable hard disks), magnetic tapes), optical media (eg, optical disks, compact discs) , CD), digital versatile disc (digital versatile disc, DVD), etc.), smart cards and flash memory devices (for example, erasable programmable read-only memory (EPROM), card, stick or key drive, etc. ), or semiconductor media (such as solid state disk (SSD), etc., U disk, read-only memory (ROM), random access memory (RAM), etc. that can store programs medium of code.

Various storage media described herein may represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or data.

It should be understood that the processor mentioned in the embodiments of the present application may be a central processing unit (central processing unit, CPU), and may also be other general-purpose processors, digital signal processors (digital signal processors, DSP), application-specific integrated circuits ( application specific integrated circuit, ASIC), off-the-shelf programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It should also be understood that the memory mentioned in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically programmable Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory. Volatile memory may be random access memory (RAM). For example, RAM can be used as an external cache. By way of example and not limitation, RAM may include the following forms: static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM) , double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (synchlink DRAM, SLDRAM) and Direct memory bus random access memory (direct rambus RAM, DR RAM).

It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components, the memory (storage module) can be integrated in the processor.

It should also be noted that the memory described herein is intended to include, but not be limited to, these and any other suitable types of memory.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the above-mentioned units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or may be Integration into another system, or some features can be ignored, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, which may be in electrical, mechanical or other forms.

The units described above as separate components may or may not be physically separated, and components shown as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to implement the solution provided in this application.

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

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof.

When implemented in 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 the computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device. For example, the computer may be a personal computer, a server, or a network device or the like. Computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, computer, server, or data center over a wire (e.g. coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.) to another website site, computer, server, or data center. Regarding the computer-readable storage medium, reference may be made to the above description.

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present application, All should be covered within the scope of protection of this application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims and the description.

Claims (38)

A method for wireless access, characterized in that the method is applicable to a first type of terminal equipment, comprising: determining a target frequency resource, where the target frequency resource is one frequency resource among at least two first frequency resources, and the first frequency resource is used to transmit random access uplink data of the first type terminal device; Random access uplink data is transmitted on the target frequency resource. The method according to claim 1, wherein the target frequency resource is determined according to at least one of the following: random access preamble resources used in the random access process; the number of random access preamble resources for the first type of terminal equipment; The number of at least two of the first frequency resources. The method according to claim 1 or 2, wherein the target frequency resource is based on the corresponding relationship between the random access preamble resource of the first type terminal device and the first frequency resource and the Determined by the random access preamble resource used in the random access process, the corresponding relationship between the random access preamble resource of the first type terminal device and the first frequency resource is configured by the network device. The method according to any one of claims 1 to 3, wherein the target frequency resource is determined according to a synchronization signal block and a correspondence between the synchronization signal block and the first frequency resource, and the The correspondence between the synchronization signal block and the first frequency resource is configured by the network device. The method according to any one of claims 1 to 4, wherein the target frequency resource is determined according to at least one of the following: The synchronization signal block determined in the initial access process; the number of synchronization signal blocks from the network device; the number of the at least two first frequency resources. The method according to any one of claims 1 to 5, wherein each of the first frequency resources is determined according to the number of the first frequency resources and a second frequency resource, the second frequency The resource is used to transmit random access uplink data of a second type of terminal equipment, and the second type of terminal equipment and the first type of terminal equipment have different bandwidth capabilities. The method according to any one of claims 1 to 6, wherein each of the first frequency resources is based on the number of the first frequency resources and a random access preamble for the second type of terminal equipment The frequency resource corresponding to the resource is determined, and the bandwidth capability of the second type terminal device is different from that of the first type terminal device. The method according to any one of claims 1 to 7, wherein the number of the first frequency resources is determined according to at least one of the following: the bandwidth of the system carrier; The frequency band where the system carrier is located; frequency resources used to transmit random access uplink data of a second type of terminal equipment, where the bandwidth capabilities of the second type of terminal equipment and the first type of terminal equipment are different; The transmission bandwidth used for the downlink system information of the second type terminal equipment. The method according to any one of claims 1 to 5, wherein the target frequency resource is determined according to indication information from the network device. A method for wireless access, characterized in that the method is applicable to network equipment, comprising: determining a target frequency resource, where the target frequency resource is one frequency resource among at least two first frequency resources, and the first frequency resource is used to transmit random access uplink data of the first type terminal device; On the target frequency resource, the random access uplink data from the terminal equipment of the first type is received. The method according to claim 10, wherein the target frequency resource is determined according to at least one of the following: random access preamble resources used in the random access process; the number of random access preamble resources for the first type of terminal equipment; the number of the first frequency resources. The method according to claim 10 or 11, wherein the target frequency resource is based on the correspondence between the random access preamble resource of the first type terminal device and the first frequency resource and the Determined by the random access preamble resource used in the random access process, the correspondence between the random access preamble resource of the first type terminal device and the first frequency resource comes from the network device. The method according to any one of claims 10 to 12, wherein the target frequency resource is determined according to a synchronization signal block and a corresponding relationship between the synchronization signal block and the first frequency resource, and the The correspondence between the synchronization signal block and the first frequency resource comes from the network device. The method according to any one of claims 10 to 13, wherein the target frequency resource is determined according to at least one of the following: The synchronization signal block determined in the initial access process; the number of synchronization signal blocks from the network device; the number of the first frequency resources. The method according to any one of claims 10 to 14, wherein the size of each of the first frequency resources is determined according to the number of the first frequency resources and the second frequency resources, and the first frequency resource The second frequency resource is used to transmit random access uplink data of a second type of terminal equipment, and the second type of terminal equipment has different bandwidth capabilities from the first type of terminal equipment. The method according to any one of claims 10 to 15, wherein the location of each of the first frequency resources is based on the number of the first frequency resources and the random access for the second type of terminal equipment. According to the frequency resource corresponding to the incoming preamble resource, the bandwidth capability of the second type terminal device is different from that of the first type terminal device. The method according to any one of claims 10 to 16, wherein the quantity of the first frequency resources is determined according to at least one of the following: the bandwidth of the system carrier; The frequency band where the system carrier is located; frequency resources used to transmit random access uplink data of a second type of terminal equipment, where the bandwidth capabilities of the second type of terminal equipment and the first type of terminal equipment are different; Transmission bandwidth for downlink system information of the second type of terminal equipment. The method according to any one of claims 10 to 14, wherein the target frequency resource is determined according to indication information from the network device. An apparatus for wireless access, characterized in that the apparatus is suitable for a first type of terminal equipment, comprising: a processing module, configured to determine a target frequency resource, where the target frequency resource is one frequency resource among at least two first frequency resources, and the first frequency resource is used to transmit the random access uplink of the first type terminal device data; A transceiver module, configured to transmit random access uplink data on the target frequency resource. The apparatus according to claim 19, wherein the target frequency resource is determined according to at least one of the following: random access preamble resources used in the random access process; the number of random access preamble resources for the first type of terminal equipment; The number of at least two of the first frequency resources. The apparatus according to claim 19 or 20, wherein the target frequency resource is based on the correspondence between the random access preamble resource of the first type terminal equipment and the first frequency resource and the Determined by the random access preamble resource used in the random access process, the corresponding relationship between the random access preamble resource of the first type terminal device and the first frequency resource is configured by the network device. The apparatus according to any one of claims 19 to 21, wherein the target frequency resource is determined according to a synchronization signal block and a correspondence between the synchronization signal block and the first frequency resource, and the The correspondence between the synchronization signal block and the first frequency resource is configured by the network device. The apparatus according to any one of claims 19 to 22, wherein the target frequency resource is determined according to at least one of the following: The synchronization signal block determined in the initial access process; the number of synchronization signal blocks from the network device; the number of the at least two first frequency resources. The apparatus according to any one of claims 19 to 23, wherein the size of each of the first frequency resources is determined according to the number of the first frequency resources and the second frequency resources, and the first frequency resource The second frequency resource is used to transmit random access uplink data of a second type of terminal equipment, and the second type of terminal equipment has different bandwidth capabilities from the first type of terminal equipment. The apparatus according to any one of claims 19 to 24, wherein the position of each of the first frequency resources is based on the number of the first frequency resources and random access for the second type of terminal equipment. According to the frequency resource corresponding to the incoming preamble resource, the bandwidth capability of the second type terminal device is different from that of the first type terminal device. The apparatus according to any one of claims 19 to 25, wherein the quantity of the first frequency resources is determined according to at least one of the following: the bandwidth of the system carrier; The frequency band where the system carrier is located; frequency resources used to transmit random access uplink data of a second type of terminal equipment, where the bandwidth capabilities of the second type of terminal equipment and the first type of terminal equipment are different; Transmission bandwidth for downlink system information for the second type of terminal equipment. The apparatus according to any one of claims 19 to 23, wherein the target frequency resource is determined according to indication information from the network device. An apparatus for wireless access, characterized in that the apparatus is suitable for network equipment, comprising: a processing module that determines a target frequency resource, where the target frequency resource is one frequency resource among at least two first frequency resources, and the first frequency resource is used to transmit random access uplink data of the first type of terminal equipment; The transceiver module is configured to receive random access uplink data from the first type terminal equipment on the target frequency resource. The apparatus according to claim 28, wherein the target frequency resource is determined according to at least one of the following: random access preamble resources used in the random access process; the number of random access preamble resources for the first type of terminal equipment; the number of the first frequency resources. The apparatus according to claim 28 or 29, wherein the target frequency resource is based on the correspondence between the random access preamble resource of the first type terminal equipment and the first frequency resource and the Determined by the random access preamble resource used in the random access process, the correspondence between the random access preamble resource of the first type terminal device and the first frequency resource comes from the network device. The apparatus according to any one of claims 28 to 30, wherein the target frequency resource is determined according to a synchronization signal block and a corresponding relationship between the synchronization signal block and the first frequency resource, and the The correspondence between the synchronization signal block and the first frequency resource comes from the network device. The apparatus according to any one of claims 28 to 31, wherein the target frequency resource is determined according to at least one of the following: a synchronization signal block determined in an initial access process; from the network device The number of synchronization signal blocks; the number of the first frequency resources. The apparatus according to any one of claims 28 to 32, wherein the size of each of the first frequency resources is determined according to the number of the first frequency resources and the second frequency resources, and the first frequency resource The second frequency resource is used to transmit random access uplink data of a second type of terminal equipment, and the second type of terminal equipment and the first type of terminal equipment have different bandwidth capabilities. The apparatus according to any one of claims 28 to 33, wherein the position of each of the first frequency resources is based on the number of the first frequency resources and random access for the second type of terminal equipment. According to the frequency resource corresponding to the incoming preamble resource, the bandwidth capability of the second type terminal device is different from that of the first type terminal device. The apparatus according to any one of claims 28 to 34, wherein the quantity of the first frequency resources is determined according to at least one of the following: the bandwidth of the system carrier; The frequency band where the system carrier is located; frequency resources used to transmit random access uplink data of a second type of terminal equipment, where the bandwidth capabilities of the second type of terminal equipment and the first type of terminal equipment are different; Transmission bandwidth for downlink system information of the second type of terminal equipment. The apparatus according to any one of claims 28 to 32, wherein the target frequency resource is determined according to indication information from the network device. A device for data transmission, comprising: memory for storing computer instructions; a processor for executing computer instructions stored in the memory to cause the means for data transfer to perform the method of any one of claims 1 to 9 or any one of claims 10 to 18 the method described. A computer-readable storage medium, characterized in that a computer program is stored thereon, and when the computer program is executed by an apparatus for data transmission, the apparatus for data transmission executes as in claims 1 to 9 The method of any one or the method of any one of claims 10 to 18.

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