Initial access method and device, terminal and network-side equipment

Abstract

To provide an initial access method and apparatus, a terminal, and a network-side device, to resolve the prior-art problem that performance of different categories of terminals in an initial access process is affected because all terminals share same initial access resources.SOLUTION: An initial access method used for a terminal comprises receiving a configuration message sent by a network side device. The configuration message comprises a plurality of initial access resources, and the plurality of initial access resources is configured by the network side device for different types of terminals. The method also comprises: selecting, from the plurality of initial access resources, an initial access resource corresponding to a terminal type; and executing an initial access operation on the basis of the selected initial access resource.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] (Cross - reference to related applications) This application claims the priority of Chinese Patent Application No. 202010762014.2 filed in China on July 31, 2020, and all the contents of the said application are incorporated herein by reference.

[0002] This application belongs to the field of communication technologies, specifically relating to an initial access method and apparatus, a terminal, and a network - side device.

Background Art

[0003] In the current development of New Radio (NR), in order to adapt to different application scenarios and requirements, lightweight terminals (abbreviated as light / lite UE, reduced - capability UE, NR - light / Lite or RedCap UE) have been introduced, and are mainly applied to wearable devices, industrial sensor terminals in factory environments, or video monitoring devices in industrial environments. However, in the NR system, different types of user equipment (UE) are not distinguished, and all UEs share the same initial access resources. If the number of lightweight terminals is too large, it may affect the access of normal UEs or their performance after access, such as access failure or increased delay.

Summary of the Invention

Problems to be Solved by the Invention

[0004] The purpose of the embodiments of this application is to provide an initial access method and apparatus, a terminal, and a network - side device that can solve the problem in the prior art that when all terminals share the same initial access resources, it will affect the performance of different types of terminals in the initial access process.

Means for Solving the Problems

[0005] To solve the above technical problems, this application is implemented as follows.

[0006] According to a first embodiment, an initial access method for use with a terminal is provided, the method comprising: receiving a deployment message transmitted by a network-side device, the deployment message including a plurality of initial access resources deployed by the network-side device for different types of terminals; selecting an initial access resource from the plurality of initial access resources corresponding to the terminal type; and performing an initial access operation based on the selected initial access resource.

[0007] According to a second aspect, an initial access device is provided, the device comprising a receiving module for receiving a placement message transmitted by a network-side device, the receiving module comprising a plurality of initial access resources to be placed by the network-side device for different types of terminals, a selection module for selecting an initial access resource from the plurality of initial access resources corresponding to a terminal type, and an execution module for performing an initial access operation based on the selected initial access resource.

[0008] According to a third aspect, an initial access method is provided for use by a network-side device, the method comprising: arranging multiple initial access resources for different types of terminals; and sending arrangement messages to the different types of terminals, the arrangement messages being used to indicate that the network-side device has arranged multiple initial access resources for different types of terminals.

[0009] According to a fourth aspect, an initial access device is provided, the device comprising a placement module for arranging multiple initial access resources for different types of terminals, and a transmission module for sending placement messages to the different types of terminals, wherein the placement messages are used to indicate that a network-side device has arranged multiple initial access resources for different types of terminals.

[0010] According to a fifth aspect, a terminal is provided, which includes a processor, memory, and a program or instruction stored in the memory and capable of running on the processor, and when the program or instruction is executed by the processor, the steps of the method according to the first aspect are realized.

[0011] According to the sixth aspect, a network-side device is provided, which includes a processor, memory, and a program or instruction stored in the memory and operable on the processor, and when the program or instruction is executed by the processor, the steps of the method according to the third aspect are realized.

[0012] According to the seventh aspect, a readable storage medium is provided, the readable storage medium storing a program or instruction, and when the program or instruction is executed by a processor, a step of the method according to the first aspect is realized, or a step of the method according to the third aspect is realized.

[0013] According to the eighth aspect, a chip is provided, the chip comprising a processor and a communication interface, the communication interface being coupled with the processor, the processor running programs or instructions for network-side equipment, and used to implement the method according to the first aspect or the method according to the third aspect. [Effects of the Invention]

[0014] In the embodiments of this application, after receiving a deployment message transmitted by a network-side device, the terminal can select an initial access resource corresponding to its terminal type from a plurality of initial access resources, and then perform an initial access operation based on the selected initial access resource. In other words, the terminal can select an initial access resource corresponding to its terminal type from a plurality of initial access resources without occupying the initial access resources of other types of terminals. This solves the problem in the prior art where all types of terminals sharing the same initial access resources affects the performance of different types of terminals in the initial access process, thereby achieving the effect of balancing the load on the network side. [Brief explanation of the drawing]

[0015] [Figure 1] A block diagram of a wireless communication system to which the embodiments of this application can be applied is shown. [Figure 2] This is one of the flowcharts for the initial access method of the embodiment of this application. [Figure 3] This is the second flowchart of the initial access method for the embodiment of this application. [Figure 4] This is one of the schematic diagrams of the structure of the initial access device according to the embodiment of this application. [Figure 5] This is the second schematic diagram of the structure of the initial access device according to the embodiment of this application. [Figure 6] This is a schematic diagram of the structure of the communication device according to the embodiment of this application. [Figure 7] This is a schematic diagram of the hardware structure that realizes the terminal according to the embodiment of this application. [Figure 8] This is a schematic diagram of the network-side equipment structure of the embodiment of this application. [Modes for carrying out the invention]

[0016] The following clearly and completely describes the technical concepts in the embodiments of this application, linking them to the drawings of the embodiments. Clearly, the embodiments described are only some, and not all, embodiments of this application. All other embodiments derived from the embodiments of this application without the creative effort of a person skilled in the art are all within the scope of protection of this application.

[0017] The terms "first," "second," etc., used in the specification and claims of this application are intended to distinguish similar subjects and not to describe a specific order or sequence. It should be understood that the data used in this manner are interchangeable where appropriate, so that the embodiments of this application can be carried out in an order other than those illustrated or described herein, and the subjects distinguished by "first" and "second" are generally of the same kind and do not limit the number of subjects; for example, there may be one subject or multiple subjects. Furthermore, "and / or" in the specification and claims indicates at least one of the connected subjects, and the letter " / " generally indicates that the preceding and succeeding related subjects are in an "or" relationship.

[0018] It should be noted that the technology described in the embodiments of this application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be applied to other wireless communication systems such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of this application are always used interchangeably, and the described technology may be used in the systems and radio technologies mentioned above, or in other systems and radio technologies. However, the following description describes the New Radio (NR) system for illustrative purposes and uses NR terms in most of the following descriptions. These technologies may also be applied to applications other than NR system applications, such as the Sixth Generation (6 th Generation, 6G) communication system.

[0019] Figure 1 shows a block diagram of a wireless communication system to which an embodiment of this application can be applied. The wireless communication system includes a terminal 11 and network-side equipment 12. Here, terminal 11 may also be called terminal equipment or user equipment (UE), and terminal 11 may be terminal-side equipment such as a mobile phone, tablet personal computer, laptop computer (or notebook computer), personal digital assistant (PDA), palmtop computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), wearable device, or vehicle user equipment (VUE), or pedestrian user equipment (PUE), and wearable devices include bracelets, earphones, glasses, etc. It should be noted that the embodiment of this application does not limit the specific type of terminal 11. The network-side equipment 12 may be a base station or a core network, where a base station may also be called a node B, an evolved node B, an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a B node, an evolved B node (eNB), a home B node, a home evolved B node, a WLAN access point, a WiFi node, a transmitting receiving point (TRP), or any other appropriate term in the art, as long as the same technical effect is achieved. The base station is not limited to any particular technical term, and for the purposes of this explanation, only a base station in an NR system is given as an example in the embodiments of this application, but the specific type of base station is not limited.

[0020] Hereinafter, the initial access method according to the embodiments of the present application will be described in detail by way of specific embodiments and their application scenarios in conjunction with the drawings.

[0021] The embodiments of the present application provide an initial access method for use in a terminal. FIG. 2 is one of the flowcharts of the initial access method according to the embodiments of the present application. As shown in FIG. 2, the steps of this method are as follows: Step S202: Receive an allocation message sent by a network-side device, where the allocation message includes a plurality of initial access resources allocated by the network-side device for different types of terminals. Step S204: Select an initial access resource corresponding to the terminal type from the plurality of initial access resources. Step S206: Perform an initial access operation based on the selected initial access resource.

[0022] From step S202 to step S206 above, after receiving the allocation message sent by the network-side device, the terminal can select the initial access resource corresponding to the terminal type from the plurality of initial access resources, and further perform an initial access operation based on the selected initial access resource. That is, the terminal can select the initial access resource corresponding to the terminal type from the plurality of initial access resources without occupying the initial access resources of other types of terminals, thereby solving the problem in the prior art that different types of terminals affect the performance of different types of terminals in the initial access process by sharing the same initial access resource, and achieving the effect of balancing the load on the network side.

[0023] Selectively, the terminals in the embodiments of this application may include Class I terminals and Class II terminals, and in specific application scenarios, Class I terminals may be lightweight (Reduced Capability, Red Cap, or Light / Lite) terminals, and Class II terminals may be ordinary terminals, and ordinary terminals may be understood as non-lightweight terminals or ordinary types of terminals as defined in Rel15 or Rel16.

[0024] Here, NR-Light / Redcap refers to the introduction of lightweight terminals in the development of 5G NR to adapt to different application scenarios and demands, and is mainly applied to wearable devices, industrial sensor terminals in factory environments, or video monitoring equipment. Such terminals generally refer to devices with limited capabilities. This reduced capability is embodied in various ways, such as reduced device complexity, reduced device size, reduced processing power, and reduced or decreased supportable characteristics (number of supported carrier aggregation CCs, number of supported receiving antennas, maximum supported bandwidth, supported peak rate).

[0025] It should be explained that this application does not specify the concrete types of terminals referred to as the first type and the second type; rather, the first type and the second type are simply two different types of terminals, as described in the specification.

[0026] In selective embodiments of the embodiments of this application, the initial access resources relating to the embodiments of this application are: It includes at least one of the following: a Synchronous Signal Block (SSB), an SS block-based RRM measurement timing configuration (SMTC), a search space, a Control-resource set (CORESET), an uplink bandwidth part (BWP), a downlink bandwidth part (BWP), and a reference signal (RS).

[0027] The configuration message relating to the embodiment of this application may be carried by at least one of the following: a Physical Broadcast Channel (PBCH), a Master Information Block (MIB), system information of a first System Information Block (SIB), extended system information, and a dedicated Radio Resource Control (RRC) message, where the first SIB is an SIB corresponding to a Class II terminal.

[0028] Selectively, the extended system information in the embodiments of this application is 1) System information corresponding to a Class 1 terminal in the first SIB1, wherein the first SIB1 is an SIB in the first SIB, and the first SIB is an SIB corresponding to a Class 2 terminal, 2) System information corresponding to a Class 1 terminal in SIBx, where x is an integer greater than 1, SIBx belongs to a second SIB, and the second SIB is the SIB corresponding to a Class 1 terminal, 3) System information corresponding to a Class 1 terminal in SIBy, where y is an integer greater than 1, SIBy is an SIB in a first SIB, the first SIB is an SIB corresponding to a Class 2 terminal, and SIBy includes at least one of the following:

[0029] Here, the system information corresponding to a Class I terminal in the first SIB1 is used to indicate either the system information that supports the Class I terminal or the system information that allows the Class I terminal to access or reside within its area.

[0030] Here, the system information supporting a Class I terminal may further refer to the system information that supports the access or presence of a Class I terminal, and the system information corresponding to a Class I terminal in SIBx and SIBy is used to indicate the system information necessary to access the cell where the Class I terminal is located.

[0031] When a terminal selectively selecting an initial access resource is a terminal of class 1, the method for selecting an initial access resource corresponding to the terminal type from a plurality of initial access resources, according to step S204 of the embodiment of this application, includes at least one of the following:

[0032] Method 1: Select an initial access resource corresponding to a Category 1 terminal from multiple initial access resources. Here, the initial access resource selected by a Category 1 terminal differs from the initial access resource selected by a Category 2 terminal. In this method 1, a first-class terminal selects an initial access resource corresponding to its type from among multiple initial access resources; that is, different types of terminals select their corresponding initial access resources. In specific application scenarios, a normal terminal may select SSB1, while lightweight terminals may select SSB2, or a normal terminal may select a broadband BWP, while lightweight terminals may select a narrowband initial BWP. In other words, this method avoids different types of terminals adopting the same initial access resource.

[0033] Method 2: Based on the attributes of a Category 1 terminal, a corresponding initial access resource is selected from multiple initial access resources, where the attributes of a Category 1 terminal include at least one of the following: Category 1 terminal capability, Category 1 terminal capability set, Category 1 terminal feature / functionality, Category 1 terminal feature / functionality set, Category 1 terminal category, Category 1 terminal type, Category 1 terminal use case, or Category 1 terminal subscription information.

[0034] It should be explained that the above terminal types generally correspond to categories defined in protocols and may be defined based on feature sets, capability sets, or different data rates (e.g., cat.1, cat.2, etc.). Different types may also be defined based on feature sets, capability sets, or different data rates, or, for different types, even within the same category, there may be different types, such as high-end UEs and low-end UEs. On the other hand, for different use cases, different categories or different types may correspond to different use cases, and the same type of terminal may be used in different use cases, such as wearable devices used for personal work and industry sensors in the industrial sector. In the case of low-end UEs, it is also possible to distinguish between low-end wearables and low-end industry sensors. The above subscription information generally refers to the UE's subscription information, such as the carrier's corresponding subscription information for a SIM card, and includes at least one of the following: SIM card type, SIM card service type, SIM card pricing information, SIM card priority, or carrier customer level. Different initial access resources can be configured to correspond to different subscription information.

[0035] For this method 2, in specific application scenarios, a Class 1 terminal may be a terminal with a bandwidth capability of less than 100 MHz, or an antenna quantity capability of less than 4 / equal to 2 / equal to 1, or a peak rate capability of less than 100 Mbps, or a processing delay capability of less than a preset time, or a supported carrier quantity capability of less than a preset value, or a radiated power capability of less than a preset value. Of course, the attributes of a Class 1 terminal are merely illustrative, and the attribute values ​​of the Class 1 terminal described above can be set or adjusted as needed. In other words, for terminals of the same type, the corresponding initial access resource can also be selected based on its attribute values.

[0036] A Class I terminal may be a terminal of a certain category (e.g., a lightweight terminal), or a terminal of a certain type (e.g., a certain type of lightweight terminal, low-end or high-end UEs), or a terminal for a certain application scenario (e.g., a low-end terminal for a wearable application scenario, a high-end terminal for a wearable application scenario, a low-end industrial sensor terminal, a high-end industrial monitoring terminal), or a terminal with certain subscription information (e.g., a terminal for a wearable device such as a subscription watch, or a terminal for the subscription industry).

[0037] Method 3: Based on the correspondence between the identifier of a Class 1 terminal and the initial access resource, select the corresponding initial access resource from multiple initial access resources. In this method 3, in specific application scenarios, the identifier UE_ID of a Class 1 terminal may include at least one of all or some bits of IMSI / IMEI / S-TMSI / TMSI / P-TMSI / Configured ID / Resume ID / C-RNTI, etc. Based on this, the Initial BWP used for the initial access related operations of a Class 1 terminal is UE_ID mode N, where N is the number of initial BWPs that can be used for the initial access related operations of a Class 1 terminal, and the relationship between other initial access resources and the identifier of a Class 1 terminal is similar.

[0038] Method 4: Based on the pre-set weights on the corresponding initial access resources of the first type terminal, an initial access resource is selected from multiple initial access resources whose pre-set weight is greater than a pre-set threshold. For this method 4, the Initial BWP used for initial access-related operations of a Class 1 terminal has a relatively high probability of selecting an initial access resource with a relatively high weight.

[0039] Method 5: Select an initial access resource from multiple initial access resources whose pre-set weight is greater than a pre-set threshold and which satisfies the correspondence relationship. Regarding this method 5, it should be explained that first, initial access resources greater than a predetermined threshold are determined by predetermined weights, and then further necessary initial access resources may be determined based on the relationship between the initial access resources and the identifiers of the first type of terminal. In other words, this correspondence refers to the relationship between the initial access resources and the identifiers of the first type of terminal, that is, initial access resources can be determined based on predetermined weights and UE-IDs. This is essentially a combination of the above methods 3 and 4.

[0040] Method 6: Based on the correspondence between the cell identifier PCI or PLMN (Public Land Mobile Network) identifier of the cell where the Class 1 terminal is located and the initial access resource, the corresponding initial access resource is selected from multiple initial access resources.

[0041] Here, this method 3 is similar to the method related to the method, but differs in that one is an identifier for a first-class terminal, and the other is a cell identifier or PLMN identifier.

[0042] It should be explained that the configuration message in the embodiment of this application further includes a first instruction message, which is used to indicate the correspondence between an initial access resource and a terminal type, and based on this, selecting an initial access resource corresponding to a terminal type from a plurality of initial access resources in the embodiment of this application includes selecting an initial access resource corresponding to a terminal type based on the correspondence. In other words, a Class I terminal can determine the corresponding initial access resource based on this correspondence.

[0043] Selectively, the configuration message in the embodiments of this application further includes a second instruction message, which is used to indicate the initial access resources of a Class I terminal. That is, in addition to the first instruction message, the application can implicitly indicate by the second instruction message that the cell in which the network is located supports a Class I terminal, or that it supports access to or presence of a Class I terminal.

[0044] Selectively, the configuration message in the embodiments of this application further includes a third instruction message, which is used to instruct an initial access operation to be performed by the initial access resources of a Class I terminal.

[0045] In a selective embodiment of the embodiments of this application, the initial access operation relating to the embodiments of this application includes at least one of being in the area, receiving system information, monitoring paging messages, monitoring advance-directed information, and random access.

[0046] Here, in the embodiments of this application, this pre-indication information may be one of the following: Wake-up signaling, Go-to-sleep signaling, DCP (DCI with CRC scrambled by PS-RNTI) signaling, or paging indication. On the other hand, this random access may be initial random access.

[0047] In a selective embodiment of the embodiments of this application, if the terminal that selects the initial access resource is a Class I terminal, the method for performing the initial access operation based on the selected initial access resource in step S206 may further include receiving system information and monitoring paging messages based on the selected first initial access resource, and performing random access based on the selected second initial access resource, where the first initial access resource is the same resource on which the Class II terminal receives system information and monitors paging messages, and the second initial access resource is different from the resource on which the Class II terminal performs random access.

[0048] In other words, Class I and Class II terminals use the associated DL initial BWP or coreset#0 or SSB to receive SIs and monitor paging messages, but can perform random access using different initial access resources. Specifically, they may use different UL initial BWPs to send a preamble (random access preamble) and / or msg.3, and the same DL initial BWP to receive msg.2 and / or msg.4, or they may use different DL / UL initial BWPs to perform RACH.

[0049] In a selective embodiment of the embodiments of this application, if the terminal that selects the initial access resource is a Class I terminal, the execution of the initial access operation based on the selected initial access resource in step S206 includes receiving system information based on the selected third initial access resource and monitoring random access and paging messages based on the selected fourth initial access resource, where the third initial access resource is the same resource on which a Class II terminal receives system information, and the fourth initial access resource is different from the resource on which a Class II terminal monitors random access and paging messages.

[0050] In other words, Class 1 and Class 2 terminals receive SI using the associated DL initial BWP or coreset#0 or SSB, but can use different initial access resources for paging message monitoring and random access. Specifically, they may use different DL initial BWPs to monitor paging messages, different UL initial BWPs to send preamble and / or msg.3, and the same DL initial BWP to receive msg.2 and / or msg.4. Alternatively, they may use different DL initial BWPs to monitor paging messages and different DL / UL initial BWPs to perform RACH.

[0051] Figure 2 above illustrates the present application from the terminal side, but the following will explain the present application from the network-side equipment side.

[0052] Figure 3 is the second flowchart of the initial access method of an embodiment of this application, which is used for network-side equipment, and as shown in Figure 3, the steps of this method are: Step S302, deploying multiple initial access resources for different types of terminals, Step S304 includes sending a deployment message to different types of terminals, where the deployment message is used to indicate that the network-side equipment is deploying multiple initial access resources for different types of terminals.

[0053] In a selective embodiment of the embodiments of this application, the placement message in the embodiments of this application is carried by at least one of the following: a physical broadcast channel (PBCH), a master information block (MIB), a first system information block (SIB), extended system information, and a dedicated RRC message. Here, the first SIB is an SIB that corresponds to a Type 2 terminal.

[0054] Furthermore, the system information for this extension includes at least one of the following:

[0055] 1) System information corresponding to a Class I terminal in the first SIB1, where the first SIB1 is the SIB in the first SIB, and the first SIB is the SIB corresponding to a Class II terminal, where in a specific application scenario, this system information corresponding to a Class I terminal in SIB1 may be SIB1-extend, which refers to an extension of the conventional SIB1 to additional SIB1 system messages that allow support for a Class I terminal, or allow support for access or presence of a Class I terminal, or instruct that access for a Class I terminal be allowed.

[0056] 2) System information corresponding to a Class 1 terminal in SIBy, where y is an integer greater than 1, SIBy is the SIB in the first SIB, the first SIB is the SIB corresponding to a Class 2 terminal, and SIBy may or may not include system information corresponding to a Class 2 terminal.

[0057] In this specific application scenario, SIBx may be other SIB2-light, SIB3-light, SIB4-light, ... SIBn-light types that are different from the conventional SIB2, SIB3, SIB4, ... SIBn types.

[0058] 3) System information corresponding to a Class 1 terminal in SIBx, where x is an integer greater than 1, and SIBx belongs to a second SIB, and the second SIB is an SIB corresponding to a Class 1 terminal.

[0059] In other words, SIBx can be other SIB2-light, SIB3-light, SIB4-light, ... SIBn-light types that are different from the conventional SIB2, SIB3, SIB4, ... SIBn types, and can also be independent SIBx types.

[0060] Selectively, the system information corresponding to a Class I terminal in the first SIB1 is used to indicate either the system information that supports the Class I terminal or the system information that allows the Class I terminal to access or reside within its area.

[0061] Selectively, system information corresponding to Class 1 terminals in SIBx and SIBy is used to indicate the system information necessary to access the cell where the Class 1 terminal is located.

[0062] Selectively, the configuration message in the embodiments of the present application further comprises at least one of a first instruction message, a second instruction message, and a third instruction message, wherein the first instruction message is used to indicate a correspondence between an initial access resource and a terminal type, the second instruction message is used to indicate an initial access resource for a Class I terminal, and the third instruction message is used to indicate an initial access operation in which the initial access resource for a Class I terminal is used to perform.

[0063] The initial access method in the embodiment of this application allows for the selection of an initial access resource corresponding to the terminal type from multiple initial access resources, thereby effectively ensuring that one type of terminal can quickly access the system without affecting the performance of other types of terminals.

[0064] It should be explained that in the initial access method according to the embodiment of this application, the execution body may be an initial access device or a control module for executing the initial access method in this initial access device. In the embodiment of this application, the initial access device according to the embodiment of this application will be described using the example that the initial access device executes the initial access method.

[0065] The embodiment of this application provides an initial access device, and Figure 4 is one of the schematic diagrams of the initial access device of the embodiment of this application, which is used as a terminal, and as shown in Figure 4, this device is A receiving module 42 for receiving a placement message transmitted by a network-side device, wherein the placement message includes a plurality of initial access resources to be placed by the network-side device for different types of terminals, A selection module 44 for selecting an initial access resource corresponding to the terminal type from multiple initial access resources, It includes an executable module 46 for performing initial access operations based on the selected initial access resources.

[0066] Selectively, the terminals in the embodiments of this application may include both Class I terminals and Class II terminals.

[0067] Based on this, if the terminal that selects the initial access resource is a Class 1 terminal, the selection module 44 of the embodiment of this application is: A first selection unit for selecting an initial access resource corresponding to a Class 1 terminal from multiple initial access resources, wherein the initial access resource selected by the Class 1 terminal is different from the initial access resource selected by the Class 2 terminal and is selected by a first selection unit. A second selection unit for selecting a corresponding initial access resource from multiple initial access resources based on the attributes of a Class 1 terminal, wherein the attributes of the Class 1 terminal include at least one of the following: capabilities of the Class 1 terminal, capability set of the Class 1 terminal, functions of the Class 1 terminal, function set of the Class 1 terminal, type of the Class 1 terminal, application scenario of the Class 1 terminal, and subscription information of the Class 1 terminal. A third selection unit for selecting a corresponding initial access resource from multiple initial access resources based on the correspondence between the identifier of a first-class terminal and the initial access resource, A fourth selection unit for selecting an initial access resource from among multiple initial access resources whose pre-configured weight is greater than a pre-configured threshold, based on a pre-configured weight on the corresponding initial access resource of a first-class terminal, A fifth selection unit for selecting an initial access resource from multiple initial access resources whose pre-set weight is greater than a pre-set threshold and which satisfies the correspondence relationship, It includes at least one of a sixth selection unit for selecting a corresponding initial access resource from a plurality of initial access resources based on the correspondence between the cell identifier or public land mobile network PLMN identifier of the cell where the Class I terminal is located and the initial access resource.

[0068] Selectively, the configuration message in the embodiment of the present application further includes a first instruction message, which is used to indicate a correspondence between an initial access resource and a terminal type, and the selection module is further used to select an initial access resource corresponding to a terminal type based on the correspondence.

[0069] Selectively, the configuration message in the embodiments of this application further includes a second instruction message, the second instruction message being used to instruct the initial access resources of a Class I terminal.

[0070] Selectively, the configuration message in the embodiments of this application further includes a third instruction message, which is used to instruct an initial access operation to be performed by the initial access resources of a Class I terminal.

[0071] Selectively, the initial access operation in the embodiments of this application may include at least one of the following: being in the area, receiving system information, monitoring paging messages, monitoring pre-instructed information, and random access.

[0072] If, selectively, the terminal that selects the initial access resource in this application is a Class 1 terminal, then performing the initial access operation based on the selected initial access resource is: This includes receiving system information and monitoring paging messages based on a selected first initial access resource, and performing random access based on a selected second initial access resource, where the first initial access resource is the same resource on which the second type of terminal receives system information and monitors paging messages, and the second initial access resource is different from the resource on which the second type of terminal performs random access.

[0073] If the terminal that selectively selects the initial access resource is a Class 1 terminal, the selection module is further used to receive system information based on the selected third initial access resource and to monitor random access and paging messages based on the selected fourth initial access resource, where the third initial access resource is the same resource from which a Class 2 terminal receives system information, and the fourth initial access resource is different from the resource from which a Class 2 terminal monitors random access and paging messages.

[0074] Selectively, the initial access resources in the embodiments of this application include at least one of the following: a synchronization signal block SSB, a measurement time arrangement SMTC based on the synchronization signal block, a search space, a control resource set CORESET, an uplink bandwidth portion BWP, a downlink bandwidth portion BWP, and a reference signal RS.

[0075] Selectively, the configuration message in the embodiment of this application is carried by at least one of the following: a physical broadcast channel (PBCH), a master information block (MIB), a first SIB system information block, extended system information, and a dedicated RRC message, where the first SIB is an SIB corresponding to a Class II terminal.

[0076] Selectively, the extended system information in the embodiments of this application is 1) System information corresponding to a Class 1 terminal in the first SIB1, wherein the first SIB1 is an SIB in the first SIB, and the first SIB is an SIB corresponding to a Class 2 terminal, 2) System information corresponding to a Class 1 terminal in SIBx, where x is an integer greater than 1, SIBx belongs to a second SIB, and the second SIB is the SIB corresponding to a Class 1 terminal, 3) System information corresponding to a Class 1 terminal in SIBy, where y is an integer greater than 1, SIBy is an SIB in a first SIB, the first SIB is an SIB corresponding to a Class 2 terminal, and SIBy includes at least one of the following:

[0077] Here, the system information corresponding to a Class I terminal in the first SIB1 is used to indicate either the system information that supports the Class I terminal or the system information that allows the Class I terminal to access or reside within its area.

[0078] Here, the system information corresponding to Class 1 terminals in SIBx and SIBy is used to indicate the system information necessary to access the cell where the Class 1 terminal is located.

[0079] The above explanation described this application from the perspective of the terminal device; however, the following explanation will describe this application from the perspective of the network device.

[0080] The embodiments of this application further provide an initial access device used in network-side equipment, and Figure 5 is a second schematic diagram of the structure of the initial access device according to the embodiments of this application, and as shown in Figure 5, this device is A deployment module 52 for deploying multiple initial access resources for different types of terminals, The system includes a transmission module 54 for sending deployment messages to different types of terminals, where the deployment messages are used to indicate that the network-side equipment is deploying multiple initial access resources for different types of terminals.

[0081] Selectively, the configuration message in the embodiment of this application is carried by at least one of the following: a physical broadcast channel (PBCH), a master information block (MIB), a first SIB system information block, an extended system information block, and a dedicated RRC message. Here, terminals include first-class terminals and second-class terminals, and the first SIB is an SIB corresponding to a second-class terminal.

[0082] Selectively, the system information for the extension is, 1) System information corresponding to a Class 1 terminal in the first SIB1, wherein the first SIB1 is an SIB in the first SIB, and the first SIB is an SIB corresponding to a Class 2 terminal, 2) System information corresponding to a Class 1 terminal in SIBy, where y is an integer greater than 1, SIBy is the SIB in the first SIB, the first SIB is the SIB corresponding to a Class 2 terminal, and SIBy may or may not include system information corresponding to a Class 2 terminal. 3) System information corresponding to a Class I terminal in SIBx, wherein x is an integer greater than 1, and the SIBx belongs to a second SIB, and the second SIB is an SIB corresponding to a Class I terminal, and includes at least one of these.

[0083] Selectively, the system information corresponding to a Category 1 terminal in the first SIB1 is used to indicate either the system information supporting a Category 2 terminal or the system information that allows a Category 2 terminal to access or reside within its area.

[0084] Selectively, system information corresponding to Class 1 terminals in SIBx and SIBy is used to indicate the system information necessary to access the cell where the Class 1 terminal is located.

[0085] Selectively, the placement message further includes at least one of a first instruction message, a second instruction message, and a third instruction message, wherein the first instruction message is used to indicate the correspondence between an initial access resource and a terminal type, the second instruction message is used to indicate the initial access resource of a first-class terminal, and the third instruction message is used to indicate the initial access operation that the initial access resource of a first-class terminal will perform.

[0086] In the embodiment of this application, after receiving a deployment message transmitted by a network-side device, the terminal can select an initial access resource corresponding to its terminal type from a plurality of initial access resources, and then perform an initial access operation based on the selected initial access resource. In other words, the terminal can select an initial access resource corresponding to its terminal type from a plurality of initial access resources without occupying the initial access resources of other types of terminals. This solves the problem in the prior art where all types of terminals sharing the same initial access resources affects the performance of different types of terminals in the initial access process, and achieves the effect of balancing the load on the network side.

[0087] The initial access device in the embodiments of this application may be a device, a component in a terminal, an integrated circuit, or a chip. This device may be a mobile terminal or a non-mobile terminal. Exemplary examples include, but are not limited to, the types of terminals 11 listed above. Non-mobile terminals may include servers, network-attached storage (NAS), personal computers (PCs), televisions (TVs), ATMs, or self-service machines, and the embodiments of this application are not specifically limited.

[0088] The initial access device in the embodiments of this application may be a device having an operating system. This operating system may be an Android operating system, an iOS operating system, or any other possible operating system, and the embodiments of this application are not specifically limited.

[0089] The initial access device according to the embodiment of this application can implement each process realized by the embodiment of the method shown in Figures 2 and 3, and can achieve the same technical effects, and to avoid repetition of the explanation, it will not be explained further here.

[0090] Selectively, as shown in Figure 6, embodiments of this application further provide a communication device 600 comprising a processor 601, a memory 602, and a program or instruction stored in the memory 602 and operable on the processor 601, for example, if the communication device 600 is a terminal, when this program or instruction is executed by the processor 601, each process of the embodiment of the initial access method described above can be realized and the same technical effects can be achieved. If the communication device 600 is a network-side device, when this program or instruction is executed by the processor 601, each process of the embodiment of the initial access method described above can be realized and the same technical effects can be achieved. To avoid repetition, no further explanation is provided here.

[0091] Figure 7 is a schematic diagram of the hardware structure that realizes the terminal according to the embodiment of this application.

[0092] This terminal 700 includes, but is not limited to, components such as a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, and a processor 710.

[0093] As those skilled in the art will understand, the terminal 700 may further include a power supply (e.g., a battery) to power each component, and the power supply may be logically connected to the processor 710 by a power management system, thereby enabling functions such as charge / discharge management and power consumption management by the power management system. The terminal structure shown in Figure 7 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than those shown in Figure 7, or combinations of some components, or different arrangements of components, which will not be described further here.

[0094] It should be understood that, in the embodiments of this application, the input unit 704 may include a graphics processing unit (GPU) 7041 and a microphone 7042, the graphics processor 7041 processing still images or video image data obtained by an image capture device (e.g., a camera) in video capture mode or image capture mode. The display unit 706 may include a display panel 7061, which may be arranged in the form of a liquid crystal display, organic light-emitting diodes, etc. The user input unit 707 includes a touch panel 7071 and other input devices 7072. The touch panel 7071 is also called a touchscreen. The touch panel 7071 may include two parts: a touch detection device and a touch controller. The other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control buttons, switch buttons, etc.), a trackball, a mouse, or an operating lever, and will not be described further here.

[0095] In the embodiments of this application, the radio frequency unit 701 receives downlink data from network-side equipment, processes it with the processor 710, and transmits uplink data to the network-side equipment. Generally, the radio frequency unit 701 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0096] Memory 709 may be used to store software programs or instructions and various data. Memory 709 may mainly include a program or instruction storage area and a data storage area, where the program or instruction storage area can store an operating system, an application program or instructions necessary for at least one function (e.g., audio playback function, image playback function, etc.). Memory 709 may also include high-speed random access memory and may further include non-volatile memory, where the non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM), or flash memory. For example, it may be at least one magnetic disk memory device, a flash memory device, or another non-volatile solid-state memory device.

[0097] The processor 710 may include one or more processing units. Optionally, the processor 710 may integrate an application processor and a modem processor. Here, the application processor primarily handles the operating system, user interface, and application programs or instructions, while the modem processor primarily handles wireless communication, such as a baseband processor. To be clear, the modem processor does not necessarily have to be integrated into the processor 710.

[0098] Here, the radio frequency unit 701 is used to receive a placement message transmitted by a network-side device, where the placement message includes a plurality of initial access resources to be placed by the network-side device for different types of terminals.

[0099] The processor 710 is used to select an initial access resource corresponding to the terminal type from the plurality of initial access resources and to perform an initial access operation based on the selected initial access resource.

[0100] After receiving a deployment message sent by a network-side device, the terminal can select an initial access resource corresponding to its terminal type from multiple initial access resources, and then perform an initial access operation based on the selected initial access resource. In other words, the terminal can select an initial access resource corresponding to its terminal type from multiple initial access resources without occupying the initial access resources of other types of terminals, thereby solving the problem in conventional technology where the performance of different types of terminals in the initial access process is affected by all types of terminals sharing the same initial access resources.

[0101] Specifically, the embodiments of this application further provide network-side equipment. As shown in Figure 8, this network-side equipment 800 includes an antenna 81, a radio frequency device 82, and a baseband device 83. The antenna 81 and the radio frequency device 82 are connected. In the uplink direction, the radio frequency device 82 receives information via the antenna 81 and transmits the received information to the baseband device 83 for processing. In the downlink direction, the baseband device 83 processes information to be transmitted and transmits it to the radio frequency device 82, which processes the received information and then transmits it via the antenna 81.

[0102] The above-mentioned frequency band processing device may be located in the baseband device 83, and the method performed by the network-side equipment in the above embodiment may be implemented in the baseband device 83, which includes a processor 84 and a memory 85.

[0103] The baseband device 83 may include, for example, at least one baseband board on which multiple chips are installed, as shown in Figure 8. Here, one chip is, for example, a processor 84, which is connected to a memory 85 and calls a program in the memory 85 to perform the operation of the network equipment shown in the embodiment of the above method.

[0104] The baseband device 83 may further include a network interface 86 used for exchanging information with a radio frequency device 82, the interface being, for example, a common public radio interface (CPRI).

[0105] Specifically, the network-side device of the embodiment of the present invention further includes instructions or programs stored in memory 85 and operable on processor 84, the processor 84 can call instructions or programs in memory 85 and perform the same technical effects as those shown by each module in Figure 2 or 3, and will not be described further here to avoid repetition.

[0106] Embodiments of this application further provide a readable storage medium on which a program or instruction is stored, and when this program or instruction is executed by a processor, each process of the embodiment of the initial access method described above can be realized and the same technical effects can be achieved. To avoid repetition, no further explanation is provided here.

[0107] Here, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes computer-readable storage media such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0108] Embodiments of this application further provide a chip comprising a processor and a communication interface, the communication interface being coupled with the processor, the processor running programs or instructions for network-side equipment, and used to implement each process of the embodiment of the initial access method described above, and achieving the same technical effects. To avoid repetition, no further explanation is provided here.

[0109] It should be understood that the chips referred to in the embodiments of this application may also be called system-level chips, system chips, chip systems, or system-on-a-chip, etc.

[0110] Embodiments of this application further provide a computer program product stored on a non-volatile, readable storage medium, which is executed by at least one processor to implement each process of the embodiment of the initial access method described above and to achieve the same technical effects. To avoid repetition, no further explanation is provided here.

[0111] It should be noted that, in this specification, the terms “include,” “incorporate,” or any other variation thereof are intended to cover the non-exclusive “include,” thereby including not only those elements but also other elements not explicitly listed, or elements specific to such process, method, article, or apparatus. Unless otherwise specified, the phrase “includes one of…” does not preclude the presence of other identical elements in a process, method, article, or apparatus containing that element. It should also be noted that the scope of methods and apparatus in embodiments of this application is not limited to performing functions in the illustrated or discussed order, but may include performing functions in a manner that is essentially simultaneous or in reverse order based on the functions involved, and methods described in a different procedure than those described may be performed, and various steps may be added, omitted, or combined. Furthermore, features described by reference to some examples may be combined with other examples.

[0112] As will be clearly apparent to those skilled in the art from the above description of the embodiments, the methods of the above embodiments can be implemented in the form of software and a necessary general-purpose hardware platform. Of course, they may also be implemented in hardware, but in many cases the former is a more preferred embodiment. With this understanding in mind, the technical proposal of this application may be embodied in the form of a software product, either substantially or in part with respect to the prior art. This computer software product is stored on a storage medium (e.g., ROM / RAM, magnetic disk, optical disk) and contains some instructions for causing a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to perform the methods of each embodiment of this application.

[0113] The above describes embodiments of this application, accompanied by drawings; however, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can, by the suggestion of this application, make many forms, as long as they do not deviate from the spirit and scope protected by the claims of this application, and all of these fall within the scope of protection of this application.

Claims

1. An initial access method used for a terminal, Receiving a placement message transmitted by a network-side device, wherein the placement message includes a plurality of initial access resources to be placed by the network-side device for different types of terminals. Selecting an initial access resource corresponding to the terminal type from the aforementioned multiple initial access resources, This includes performing initial access operations based on the selected initial access resources, The aforementioned terminals include a Class 1 terminal and a Class 2 terminal, If the terminal that selects the initial access resource is a terminal of the first type, then selecting the initial access resource corresponding to the terminal type from the multiple initial access resources is: This includes selecting a corresponding initial access resource from the plurality of initial access resources based on the attributes of the first type of terminal, The attributes of the aforementioned Class 1 terminal include the capabilities of the aforementioned Class 1 terminal, The capabilities of the aforementioned Class 1 terminals include having an antenna quantity capability equal to 2 or equal to 1. The aforementioned deployment message is carried by the first system information block SIB and the extended system information, The first SIB mentioned above is an SIB corresponding to a Class II terminal, The system information of the extension includes system information corresponding to the first type of terminal in the first SIB1, and the first SIB1 is an SIB in the first SIB. Initial access method.

2. The aforementioned placement message further includes a first instruction message for indicating the correspondence between the initial access resource and the terminal type, and selecting an initial access resource from the plurality of initial access resources is: The method according to claim 1, comprising selecting an initial access resource corresponding to the terminal type based on the aforementioned correspondence.

3. The method according to claim 1, wherein the placement message further includes a second instruction message for instructing the initial access resources of the first class of terminals.

4. The method according to claim 1, wherein the deployment message further includes a third instruction message for instructing an initial access operation to be performed by the initial access resources of the first class of terminals.

5. The aforementioned initial access operation is: The method according to claim 1, comprising at least one of being in the area, receiving system information, monitoring paging messages, monitoring advance directive information, and random access.

6. If the terminal that selects the initial access resource is a terminal of the first class, then performing the initial access operation based on the selected initial access resource is: The method according to claim 5, comprising receiving system information and monitoring paging messages based on a selected first initial access resource, and performing random access based on a selected second initial access resource, wherein the first initial access resource is the same resource on which the second type of terminal receives system information and monitors paging messages, and the second initial access resource is different from the resource on which the second type of terminal performs random access.

7. If the terminal that selects the initial access resource is a terminal of the first class, then performing the initial access operation based on the selected initial access resource is: The method according to claim 5, comprising receiving system information based on a selected third initial access resource and monitoring random access and paging messages based on a selected fourth initial access resource, wherein the third initial access resource is the same as the resource on which the second type terminal receives system information, and the fourth initial access resource is different from the resource on which the second type terminal monitors random access and paging messages.

8. The aforementioned initial access resource is The method according to any one of claims 1 to 7, comprising at least one of a synchronization signal block SSB, a measurement time arrangement SMTC based on the synchronization signal block, a search space, a control resource set CORESET, an uplink bandwidth portion BWP, a downlink bandwidth portion BWP, and a reference signal RS.

9. The aforementioned placement message is further carried by at least one of the following: a physical broadcast channel (PBCH), a master information block (MIB), and a dedicated RRC message. The method according to any one of claims 1 to 7.

10. The aforementioned system information for the extension is further, System information corresponding to the first-class terminal in SIBx, where x is an integer greater than 1, SIBx belongs to a second SIB, and the second SIB is an SIB corresponding to the first-class terminal. The method according to claim 9, comprising at least one of the following: system information corresponding to the first class terminal in SIBy, where y is an integer greater than 1, and SIBy is an SIB in the first SIB.

11. A terminal comprising a processor, memory, and a program or instruction stored in the memory and operable on the processor, wherein when the program or instruction is executed by the processor, the steps of the initial access method described in any one of claims 1 to 10 are realized.

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