Initial access method and device, terminal and network side device

Abstract

The present application discloses an initial access method and apparatus, a terminal, and a network side device, in which the method includes: receiving a configuration message sent by a network side device, where the configuration message includes a plurality of initial access resources to be configured by the network side device for different types of terminals; selecting an initial access resource corresponding to the terminal type from the plurality of initial access resources; and performing an initial access operation based on the selected initial access resource.

Description

[Technical field]

[0001] (CROSS REFERENCE TO RELATED APPLICATIONS) This application claims priority to China Patent Application No. 202010762014.2, filed in China on July 31, 2020, the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the field of communications technology, and in particular to an initial access method and device, a terminal, and a network side device. [Background technology]

[0003] In the current development of New Radio (NR), lightweight terminals (light / lite UE, reduced capability UE, NR-light / Lite or RedCap UE) have been introduced to adapt to different application scenarios and demands, and are mainly applied to wearable devices, industrial sensor terminals in factory environments, and video monitoring equipment. However, the NR system does not distinguish between different types of user equipment (UE), and all UEs share the same initial access resources. Too many lightweight terminals may affect the access or post-access performance of normal UEs, such as access failure and increased delay. Summary of the Invention [Problem to be solved by the invention]

[0004] The objective of the embodiments of the present application is to provide an initial access method and apparatus, a terminal and a network side equipment that can solve the problem in the prior art that all terminals share the same initial access resources, which affects the performance of different types of terminals in the initial access process. [Means for solving the problem]

[0005] In order to solve the above technical problems, the present application is realized as follows.

[0006] According to a first aspect, there is provided an initial access method for a terminal, the method including: receiving a configuration message sent by a network side device, the configuration message including a plurality of initial access resources to be configured by the network side device for different types of terminals; selecting an initial access resource corresponding to a terminal type from the plurality of initial access resources; and performing an initial access operation based on the selected initial access resource.

[0007] According to a second aspect, there is provided an initial access device, the device including: a receiving module for receiving a configuration message sent by a network side equipment, the configuration message including a plurality of initial access resources to be configured by the network side equipment for different types of terminals; a selection module for selecting an initial access resource corresponding to a terminal type from the plurality of initial access resources; and an execution module for performing an initial access operation based on the selected initial access resource.

[0008] According to a third aspect, there is provided an initial access method for use in a network side device, the method including: configuring a plurality of initial access resources for different types of terminals; and sending a configuration message to the different types of terminals, where the configuration message is used for indicating that the network side device is configuring a plurality of initial access resources for the different types of terminals.

[0009] According to a fourth aspect, there is provided an initial access apparatus, the apparatus including: a configuration module for configuring a plurality of initial access resources for different types of terminals; and a sending module for sending a configuration message to the different types of terminals, where the configuration message is used for indicating that a network side device is configuring a plurality of initial access resources for the different types of terminals.

[0010] According to a fifth aspect, there is provided a terminal comprising a processor, a memory and a program or instructions stored in the memory and operable to run on the processor, the program or instructions, when executed by the processor, implementing the steps of the method of the first aspect.

[0011] According to a sixth aspect, there is provided a network side device comprising a processor, a memory, and a program or instructions stored in the memory and operable to run on the processor, the program or instructions, when executed by the processor, realising the steps of the method according to the third aspect.

[0012] According to a seventh aspect, there is provided a readable storage medium having a program or instructions stored thereon, the program or instructions, when executed by a processor, performing steps of the method according to the first aspect or performing steps of the method according to the third aspect.

[0013] According to an eighth aspect, there is provided a chip, the chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor running a program or instruction of a network side device and used to realize the method according to the first aspect or to realize the method according to the third aspect. Effect of the Invention

[0014] In the embodiment of the present application, after receiving the configuration message sent by the network side equipment, the terminal can select an initial access resource corresponding to the terminal type from the multiple initial access resources, and then perform an initial access operation based on the selected initial access resource, that is, the terminal can select an initial access resource corresponding to the terminal type from the multiple initial access resources without occupying the initial access resources of other types of terminals, thereby solving the problem in the prior art that all types of terminals share the same initial access resources, which 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. [Brief description of the drawings]

[0015] [Figure 1] 1 shows a block diagram of a wireless communication system to which an embodiment of the present application can be applied. [Diagram 2] 1 is a flowchart of an initial access method according to an embodiment of the present application; [Diagram 3] 2 is a second flowchart of an initial access method according to an embodiment of the present application. [Figure 4] FIG. 2 is a structural schematic diagram of an initial access device according to an embodiment of the present application; [Diagram 5] FIG. 2 is a second structural schematic diagram of an initial access device according to an embodiment of the present application; [Figure 6] FIG. 2 is a structural schematic diagram of a communication device according to an embodiment of the present application; [Figure 7] FIG. 2 is a schematic diagram of a hardware structure for implementing a terminal according to an embodiment of the present application; [Figure 8] FIG. 2 is a structural schematic diagram of a network side device according to an embodiment of the present application; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] The following clearly and completely describes the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application, and obviously, the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by those skilled in the art on the basis of the embodiments of the present application without any creative efforts are within the scope of protection of the present application.

[0017] The terms "first," "second," etc. in the specification and claims of the present application are intended to distinguish between similar objects and are not intended to describe a particular order or sequence. It is to be understood that data so used are interchangeable where appropriate, such that the embodiments of the present application may be performed in an order other than that shown or described herein, and that the objects distinguished by "first" and "second" are generally of the same type and do not limit the number of objects, e.g., the object may be one or more. Note that "and / or" in the specification and claims refers to at least one of the objects connected, and the character " / " generally refers to an "or" relationship between the related objects.

[0018] It should be noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, 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 the present application are always used interchangeably, and the techniques described may be used in the above-mentioned systems and radio technologies, or in other systems and radio technologies. However, although the following description describes New Radio (NR) systems for illustrative purposes and uses NR terminology in most of the following description, these technologies may also be used in applications other than NR system applications, such as sixth generation (6G) systems. th This may be applied to a 6G (6th Generation) communication system.

[0019] FIG. 1 shows a block diagram of a wireless communication system to which the embodiment of the present application can be applied. The wireless communication system includes a terminal 11 and a network side device 12. Here, the terminal 11 may be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a terminal side device such as a mobile phone, a tablet personal computer, a laptop computer (or called a notebook computer), a personal digital assistant (PDA), a palmtop computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile Internet device (MID), a wearable device, a vehicle user equipment (VUE), a pedestrian user equipment (PUE), etc., and the wearable device includes a bracelet, an earphone, glasses, etc. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11. The network side equipment 12 may be a base station or a core network, where the base station may 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 suitable term in the art, and as long as the same technical effect is achieved, the base station is not limited to a specific technical term, and it should be explained that in the embodiments of this application, only base stations in an NR system are taken as an example, but the specific type of base station is not limited.

[0020] The initial access method according to the embodiments of the present application will be described in detail below with reference to specific embodiments and application scenarios thereof in conjunction with the drawings.

[0021] An embodiment of the present application provides an initial access method for a terminal. FIG. 2 is a flow chart of an initial access method for an embodiment of the present application. As shown in FIG. 2, the steps of the method include: Step S202: receiving a configuration message sent by a network side device, where the configuration message includes a plurality of initial access resources that are configured by the network side device for different types of terminals; Step S204, selecting an initial access resource corresponding to a terminal type from a plurality of initial access resources; Step S206 includes performing an initial access operation based on the selected initial access resource.

[0022] Through the above steps S202 to S206, after receiving the configuration message sent by the network side equipment, the terminal can select an initial access resource corresponding to the terminal type from the multiple initial access resources, and then perform an initial access operation based on the selected initial access resource. That is, the terminal can select an initial access resource corresponding to the terminal type from the multiple initial access resources without occupying the initial access resources of other types of terminals, thereby solving the problem in the prior art that all types of terminals share the same initial access resource, which affects the performance of different types of terminals in the initial access process, and achieving the effect of balancing the load on the network side.

[0023] Optionally, the terminals in the embodiments of the present application may include a first type of terminal and a second type of terminal, and in a specific application scenario, the first type of terminal may be a lightweight (Reduced Capability, Red Cap or Light / Lite) terminal, and the second type of terminal may be a normal terminal, which may be understood as a non-lightweight terminal or a normal type of terminal defined in Rel15 or Rel16.

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

[0025] It should be clarified that the present application does not limit the specific terminal types of the first type terminal and the second type terminal, and the first type terminal and the second type terminal are merely two types of terminals with different specifications.

[0026] In an alternative embodiment of the present application, the initial access resource for the present application is: It includes at least one of a synchronization signal block SSB (Synchronous Signal Block), a synchronization signal block based measurement time configuration SMTC (SS block based RRM measurement timing configuration), a search space, a control resource set CORESET (Control-resource set), an uplink bandwidth part BWP (Band Width Part), a downlink bandwidth part BWP, and a reference signal RS.

[0027] The configuration message in the embodiments of the present application may be carried by at least one of a physical broadcast channel (PBCH), a master information block (MIB), system information in a first system information block (SIB), extended system information and a dedicated radio resource control (RRC) message, where the first SIB is a SIB corresponding to a second type of terminal.

[0028] Optionally, the extended system information in the embodiment of the present application is: 1) system information corresponding to a first type of terminal in a first SIB1, the first SIB1 being a SIB in a first SIB, and the first SIB being a SIB corresponding to a second type of terminal; 2) system information corresponding to a first type of terminal in SIBx, where x is an integer greater than 1, SIBx belongs to a second SIB, and the second SIB is a SIB corresponding to the first type of terminal; 3) System information corresponding to a first type of terminal in SIBy, where y is an integer greater than 1, SIBy is a SIB in a first SIB, the first SIB is a SIB corresponding to a second type of terminal, and SIBy includes at least one of the following: system information corresponding to the second type of terminal in SIBy, where y is an integer greater than 1, SIBy is a SIB in a first SIB, the first SIB is a SIB corresponding to a second type of terminal, and SIBy includes system information corresponding to the second type of terminal.

[0029] Here, the system information corresponding to the first type of terminal in the first SIB1 is used to indicate one of system information supporting the first type of terminal and system information allowing the first type of terminal to access or be present.

[0030] Here, the system information supporting the first type of terminal may further refer to system information supporting the first type of terminal to access or reside in, and the system information corresponding to the first type of terminal in SIBx and SIBy is used to indicate the system information required to access the cell in which the first type of terminal is located.

[0031] Optionally, when the terminal that selects the initial access resource is a first type terminal, the manner of selecting an initial access resource corresponding to the terminal type from a plurality of initial access resources in 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 first type of terminal from a plurality of initial access resources, where the initial access resource selected by the first type of terminal is different from the initial access resource selected by the second type of terminal; In this method 1, the first type of terminal selects the initial access resource corresponding to the first type of terminal from multiple initial access resources, that is, different types of terminals select their corresponding initial access resources. In the specific application scenario terminal, normal terminal may select SSB1, while light terminal type terminal may select SSB2, normal terminal may select wideband BWP, while light terminal may select narrowband initial BWP. That is, this method can avoid different types of terminals from adopting the same initial access resource.

[0033] Method 2: Select a corresponding initial access resource from multiple initial access resources based on attributes of a first type of terminal, where the attributes of the first type of terminal include at least one of: a capability of the first type of terminal, a capability set of the first type of terminal, a feature / functionality of the first type of terminal, a feature / functionality set of the first type of terminal, a category of the first type of terminal, a type of the first type of terminal, an application scenario of the first type of terminal, and subscription information of the first type of terminal.

[0034] It should be noted that the above terminal types generally correspond to categories defined in a protocol, and may be defined based on feature sets or capability sets or different data rates, such as cat.1, cat.2, etc. Different types may also be defined based on feature sets or capability sets or different data rates, or different types may correspond to different types, such as high end UEs and low end UEs, even in the same category. Meanwhile, for different use cases, different categories or types may correspond to different application scenarios, or the same type or type of terminal may be in different application scenarios, such as wearable devices applied to personal business and industry sensors in the industrial field. In both cases, when it comes to low end UE, a distinction can also be made between low end wearables and low end industry sensors. The above subscription information generally refers to the subscription information of the UE, for example, the corresponding subscription information of the operator in the SIM card, including at least one of the following: SIM card type, SIM card service type, SIM card fee information, SIM card priority, or operator customer level, etc. Different initial access resources can be configured to correspond to different subscription information.

[0035] For this mode 2, in a specific application scenario, the first type of terminal may be a terminal whose bandwidth capability is less than 100MHz, or whose antenna number capability is less than 4 / equal to 2 / equal to 1, or whose peak rate capability is less than 100Mbps, or whose processing delay capability is less than a preset time, or whose supported carrier number capability is less than a preset value, or whose radiated power capability is less than a preset value. Of course, the attributes of the first type of terminal are merely illustrative, and the attribute values ​​of the above first type of terminal can be set or adjusted as necessary. That is, for the same type of terminal, the corresponding initial access resource can also be selected according to its attribute value.

[0036] The first type of 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 of a certain application scenario (e.g., a low end terminal of a wearable application scenario, a high end terminal of a wearable application scenario, an industrial sensor low end terminal, an industrial monitoring high end terminal), or a terminal having certain subscription information (e.g., a terminal of a wearable device such as a subscription watch, or a terminal in the subscription industry field).

[0037] Method 3: According to the correspondence relationship between the identifier of the first type terminal and the initial access resource, select a corresponding initial access resource from the multiple initial access resources; For the third mode, in a specific application scenario, the identifier UE_ID of the first type of 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 related operation of the initial access of the first type of terminal=UE_ID mode N, where N is the number of initial BWPs that can be used for the related operation of the initial access of the first type of terminal, and the relationship between other initial access resources and the identifiers of the first type of terminal is similar to this.

[0038] Method 4: According to the preset weight on the corresponding initial access resource of the first type terminal, select an initial access resource from the multiple initial access resources whose preset weight is greater than a preset threshold; For this method 4, the Initial BWP used for the related operation of the initial access of the first type 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 a plurality of initial access resources, the initial access resource having a preset weight greater than a preset threshold and satisfying a corresponding relationship; For this method 5, it should be noted that firstly, the initial access resource larger than the preset threshold is determined by the preset weight, and then the required initial access resource can be further determined according to the relationship between the initial access resource and the identifier of the first type of terminal, that is, the corresponding relationship refers to the relationship between the initial access resource and the identifier of the first type of terminal, that is, the initial access resource can be determined according to the preset weight and UE-ID, that is, it is the combination of the above method 3 and method 4.

[0040] Method 6: Select a corresponding initial access resource from multiple initial access resources based on the correspondence between the cell identifier PCI or PLMN (Public Land Mobile Network) identifier of the cell in which the first type terminal is located and the initial access resource.

[0041] Here, this method 3 is 6 The difference is that one is a first type terminal identifier and one is a cell identifier or a PLMN identifier.

[0042] It is to be noted that the configuration message in the embodiment of the present application further includes a first instruction message, where the first instruction message is used to indicate a correspondence relationship between an initial access resource and a terminal type, and based on this, selecting an initial access resource corresponding to the terminal type from a plurality of initial access resources in the embodiment of the present application includes selecting an initial access resource corresponding to the terminal type according to the correspondence relationship, that is, the first type of terminal can determine a corresponding initial access resource according to the correspondence relationship.

[0043] Optionally, the configuration message in the embodiment of the present application further includes a second indication message, where the second indication message is used to indicate the initial access resource of the first type of terminal. That is, in addition to the above-mentioned first indication message, the present application can use the second indication message to implicitly indicate that the network supports the first type of terminal in the cell where the network is located, or supports the access or camping of the first type of terminal.

[0044] Optionally, the configuration message in the embodiment of the present application further includes a third instruction message, where the third instruction message is used to instruct an initial access operation to be performed using the initial access resources of the first type of terminal.

[0045] In an optional embodiment of the embodiment of the present application, the initial access operation for the embodiment of the present application includes at least one of camping, receiving system information, monitoring paging messages, monitoring advance instruction information, and random access.

[0046] Here, in the embodiment of the present application, the advance instruction information may be one of Wake-up signaling, Go-to-sleep signaling, DCP (DCI with CRC scrambled by PS-RNTI) signaling, and paging indication. Meanwhile, the random access may be an initial random access.

[0047] In an optional embodiment of the embodiment of the present application, when the terminal selecting the initial access resource is a first type terminal, the manner of performing an 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 as the resource that the second type terminal receives system information and monitors paging messages, and the second initial access resource is different from the resource that the second type terminal performs random access.

[0048] In other words, the first type terminal and the second type terminal receive SI and monitor paging messages using associated DL initial BWPs or coreset#0 or SSBs, but can perform random access using different initial access resources, specifically, can use different UL initial BWPs to transmit preambles (random access preambles) and / or msg.3 and use the same DL initial BWP to receive msg.2 and / or msg.4, or can perform RACH using different DL / UL initial BWPs.

[0049] In an optional embodiment of the embodiment of the present application, when the terminal selecting the initial access resource is a first type terminal, the step S206 of performing an initial access operation based on the selected initial access resource includes 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, where the third initial access resource is the same as the resource that the second type terminal receives system information, and the fourth initial access resource is different from the resource that the second type terminal performs random access and paging message monitoring.

[0050] That is, the first type terminal and the second type terminal may receive SI using the associated DL initial BWP or coreset#0 or SSB, but may use different initial access resources to monitor the paging message and perform random access, specifically, may use different DL initial BWPs to monitor the paging message, use different UL initial BWPs to transmit preamble and / or msg.3, and use the same DL initial BWP to receive msg.2 and / or msg.4, or may use different DL initial BWPs to monitor the paging message and perform RACH using different DL / UL initial BWPs.

[0051] While FIG. 2 above explains the present application from the terminal side, the following explains the present application from the network side device side.

[0052] FIG. 3 is a flowchart of an initial access method according to an embodiment of the present application, which is used in a network side device. As shown in FIG. 3, the steps of the method include: Step S302, configuring a plurality of initial access resources for different types of terminals; Step S304 includes sending a configuration message to the different types of terminals, where the configuration message is used to indicate that the network side device is configuring multiple initial access resources for the different types of terminals.

[0053] In an optional embodiment of the present application, the configuration message in the embodiment of the present application is carried by at least one of a physical broadcast channel PBCH, a master information block MIB, a first system information block SIB, an extended system information and a dedicated RRC message; Here, the first SIB is a SIB corresponding to a second type of terminal.

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

[0055] 1) System information corresponding to a first type of terminal in a first SIB1, where the first SIB1 is a SIB in a first SIB, and the first SIB is a SIB corresponding to a second type of terminal, where in a specific application scenario, the system information corresponding to the first type of terminal in this SIB1 may be SIB1-extend, which refers to an extension to an additional SIB1 system message on top of the conventional SIB1 to allow supporting the first type of terminal, or allow supporting access or presence of the first type of terminal, or indicate allowing access of the first type of terminal.

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

[0057] Here, in a specific application scenario, SIBx may be other SIB2-light, SIB3-light, SIB4-light...SIBn-light, different from the conventional SIB2 SIB3 SIB4...SIBn.

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

[0059] In other words, SIBx may be another SIB2-light, SIB3-light, SIB4-light...SIBn-light that is different from the conventional SIB2 SIB3 SIB4...SIBn, or it may be an independent SIBx.

[0060] Optionally, the system information corresponding to the first type of terminal in the first SIB1 is used to indicate one of system information supporting the first type of terminal and system information allowing the first type of terminal to access or be present.

[0061] Optionally, the system information corresponding to the first type of terminal in SIBx and SIBy is used to indicate system information required for accessing the cell in which the first type of terminal is located.

[0062] Optionally, the configuration message in the embodiment of the present application further includes at least one of a first instruction message, a second instruction message, and a third instruction message, where the first instruction message is used to indicate the correspondence between the initial access resource and the terminal type, the second instruction message is used to indicate the initial access resource of the first type of terminal, and the third instruction message is used to indicate the initial access operation to be performed by the initial access resource of the first type of terminal.

[0063] The initial access method in the embodiment of the present application can select an initial access resource corresponding to a terminal type from multiple initial access resources, so as to effectively ensure that a certain type of terminal can quickly access the system while not affecting the performance of other types of terminals.

[0064] It should be noted that in the initial access method according to the embodiment of the present application, the execution body can be an initial access device or a control module for executing the initial access method in the initial access device. In the embodiment of the present application, the initial access device according to the embodiment of the present application is taken as an example to execute the initial access method.

[0065] The embodiment of the present application provides an initial access device, and FIG. 4 is a structural schematic diagram of the initial access device of the embodiment of the present application, which is used in a terminal. As shown in FIG. 4, the device includes: A receiving module 42 for receiving a configuration message sent by a network side device, the configuration message including a plurality of initial access resources to be configured by the network side device for different types of terminals; A selection module 44 for selecting an initial access resource corresponding to a terminal type from a plurality of initial access resources; and an execution module 46 for executing the initial access operation based on the selected initial access resource.

[0066] Optionally, the terminals in the embodiments of the present application may include a first type of terminal and a second type of terminal.

[0067] Based on this, if the terminal that selects the initial access resource is a first type terminal, the selection module 44 in the embodiment of the present application: a first selection unit for selecting an initial access resource corresponding to a first type of terminal from a plurality of initial access resources, where the initial access resource selected by the first type of terminal is different from the initial access resource selected by the second type of terminal; A second selection unit for selecting a corresponding initial access resource from the plurality of initial access resources according to attributes of the first type of terminal, where the attributes of the first type of terminal include at least one of the following: a capability of the first type of terminal, a capability set of the first type of terminal, a function of the first type of terminal, a function set of the first type of terminal, a type of the first type of terminal, an application scenario of the first type of terminal, and a subscription information of the first type of terminal; a third selection unit for selecting a corresponding initial access resource from the plurality of initial access resources according to a corresponding relationship between the identifier of the first type terminal and the initial access resource; a fourth selecting unit for selecting an initial access resource whose preset weight is greater than a preset threshold from the plurality of initial access resources according to the preset weight on the corresponding initial access resource of the first type terminal; a fifth selecting unit for selecting an initial access resource from the plurality of initial access resources, the initial access resource having a preset weight greater than a preset threshold and satisfying a corresponding relationship; and a sixth selecting unit for selecting a corresponding initial access resource from the plurality of initial access resources based on a correspondence relationship between a cell identifier or a public land mobile network (PLMN) identifier of a cell in which the first type terminal is located and the initial access resource.

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

[0069] Optionally, the configuration message in the embodiment of the present application further includes a second instruction message, where the second instruction message is used to indicate the initial access resources of the first type of terminal.

[0070] Optionally, the configuration message in the embodiment of the present application further includes a third instruction message, where the third instruction message is used to instruct an initial access operation to be performed using the initial access resources of the first type of terminal.

[0071] Optionally, the initial access operation in the embodiment of the present application may include at least one of camping, receiving system information, monitoring paging messages, monitoring advance instruction information, and random access.

[0072] Optionally, when the terminal that selects the initial access resource in this application is a first type of terminal, performing an initial access operation according to the selected initial access resource can include: The method 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 as the resource with which a second type of terminal receives system information and monitors paging messages, and the second initial access resource is different from the resource with which the second type of terminal performs random access.

[0073] Optionally, when the terminal selecting the initial access resource is a first type terminal, the selection module is further used for receiving system information based on the selected third initial access resource, and for performing random access and monitoring paging messages based on the selected fourth initial access resource, where the third initial access resource is the same as the resource for the second type terminal to receive system information, and the fourth initial access resource is different from the resource for the second type terminal to perform random access and monitoring paging messages.

[0074] Optionally, the initial access resource in the embodiment of the present application includes 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.

[0075] Optionally, the configuration message in the embodiment of the present application is carried by at least one of 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 a SIB corresponding to a second type of terminal.

[0076] Optionally, the extended system information in the embodiment of the present application is: 1) system information corresponding to a first type of terminal in a first SIB1, the first SIB1 being a SIB in a first SIB, and the first SIB being a SIB corresponding to a second type of terminal; 2) system information corresponding to a first type of terminal in SIBx, where x is an integer greater than 1, SIBx belongs to a second SIB, and the second SIB is a SIB corresponding to the first type of terminal; 3) System information corresponding to a first type of terminal in SIBy, where y is an integer greater than 1, SIBy is a SIB in a first SIB, the first SIB is a SIB corresponding to a second type of terminal, and SIBy includes at least one of the following: system information corresponding to the second type of terminal in SIBy, where y is an integer greater than 1, SIBy is a SIB in a first SIB, the first SIB is a SIB corresponding to a second type of terminal, and SIBy includes system information corresponding to the second type of terminal.

[0077] Here, the system information corresponding to the first type of terminal in the first SIB1 is used to indicate one of system information supporting the first type of terminal and system information allowing the first type of terminal to access or be present.

[0078] Here, the system information corresponding to the first type of terminal in SIBx and SIBy is used to indicate system information required to access the cell in which the first type of terminal is located.

[0079] The present application has been described above from the terminal side, but the present application will be described below from the network side equipment side.

[0080] The embodiment of the present application further provides an initial access device for use in a network side device. FIG. 5 is a second structural schematic diagram of the initial access device of the embodiment of the present application. As shown in FIG. 5, the device includes: A configuration module 52 for configuring a plurality of initial access resources for different types of terminals; and a sending module 54 for sending a configuration message to the different types of terminals, where the configuration message is used to indicate that the network side device is configuring multiple initial access resources for the different types of terminals.

[0081] Optionally, the configuration message in the embodiment of the present application is carried by at least one of a physical broadcast channel PBCH, a master information block MIB, a first SIB system information block, an extended system information and a dedicated RRC message; Here, the terminals include a first type of terminal and a second type of terminal, and the first SIB is a SIB corresponding to the second type of terminal.

[0082] Optionally, the extended system information 1) system information corresponding to a first type of terminal in a first SIB1, the first SIB1 being a SIB in a first SIB, and the first SIB being a SIB corresponding to a second type of terminal; 2) System information corresponding to a first type of terminal in SIBy, where y is an integer greater than 1, SIBy is a SIB in a first SIB, the first SIB is a SIB corresponding to a second type of terminal, and SIBy includes or does not include system information corresponding to the second type of terminal; 3) System information corresponding to a first type of terminal in SIBx, where x is an integer greater than 1, the SIBx belongs to a second SIB, and the second SIB is a SIB corresponding to the first type of terminal.

[0083] Optionally, the system information corresponding to the first type of terminal in the first SIB1 is used to indicate one of system information supporting the second type of terminal and system information allowing the second type of terminal to access or be present.

[0084] Optionally, the system information corresponding to the first type of terminal in SIBx and SIBy is used to indicate system information required for accessing the cell in which the first type of terminal is located.

[0085] Optionally, the configuration message further includes at least one of a first instruction message, a second instruction message, and a third instruction message, where the first instruction message is used to indicate a correspondence relationship between an initial access resource and a terminal type, the second instruction message is used to indicate the initial access resource of the first type of terminal, and the third instruction message is used to indicate the initial access operation to be performed by the initial access resource of the first type of terminal.

[0086] According to the embodiment of the present application, after receiving the configuration message sent by the network side equipment, the terminal can select an initial access resource corresponding to the terminal type from a plurality of initial access resources, and then perform an initial access operation based on the selected initial access resource, that is, the terminal can select an initial access resource corresponding to the terminal type from a 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 all types of terminals share the same initial access resource, which 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 embodiment of the present application may be a device, a component in a terminal, an integrated circuit, or a chip. The device may be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal may include, but is not limited to, the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (NAS), a personal computer (PC), a television (TV), a deposit payment machine or a self-service machine, etc., and the embodiment of the present application is not specifically limited.

[0088] The initial access device in the embodiment of the present application may be a device having an operating system, which may be an Android operating system, an ios operating system, or other possible operating systems, and the embodiment of the present application is not specifically limited.

[0089] The initial access device according to the embodiments of the present application can realize each process realized by the method embodiments of Figures 2 to 3 and achieve the same technical effects, and will not be further described here to avoid repetition of description.

[0090] Optionally, as shown in Fig. 6, the embodiment of the present application further provides a communication device 600, including a processor 601, a memory 602, and a program or instruction stored in the memory 602 and operable on the processor 601, for example, when the communication device 600 is a terminal, the program or instruction can be executed by the processor 601 to realize each process of the embodiment of the initial access method, and achieve the same technical effect. When the communication device 600 is a network side device, the program or instruction can be executed by the processor 601 to realize each process of the embodiment of the initial access method, and achieve the same technical effect. In order to avoid repetition, no further description will be given here.

[0091] FIG. 7 is a schematic diagram of the hardware structure for implementing a terminal in the embodiment of the present application.

[0092] The terminal 700 includes components such as, but not limited to, 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 can be understood by those skilled in the art, the terminal 700 may further include a power source (e.g., a battery) for powering each component, and the power source may be logically connected to the processor 710 by a power management system, so that the power management system can realize functions such as charge / discharge management and power consumption management. The terminal structure shown in Figure 7 does not constitute a limitation on the terminal, and the terminal may include more or less components than those shown in Figure 7, or a combination of some components, or a different arrangement of components, and will not be further described here.

[0094] It should be understood that in the embodiment of the present application, the input unit 704 may include a graphics processor (Graphics Processing Unit, GPU) 7041 and a microphone 7042, and the graphics processor 7041 processes image data of still or video images obtained by an image capture device (e.g., a camera) in a video capture mode or an image capture mode. The display unit 706 may include a display panel 7061, and the display panel 7061 may be arranged in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 707 includes a touch panel 7071 and other input devices 7072. The touch panel 7071 is also called a touch screen. 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, and a control lever, which will not be described further herein.

[0095] In the embodiment of the present application, the radio frequency unit 701 receives downlink data from the network side device, and then has the processor 710 process the data, and transmits uplink data to the network side device. In general, 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, etc.

[0096] The memory 709 may be used to store software programs or instructions and various data. The 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 instruction required for at least one function (e.g., a sound playback function, an image playback function, etc.), etc. In addition, the memory 709 may include a high-speed random access memory, and may further include a non-volatile memory, where the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. For example, at least one magnetic disk memory device, a flash memory device, or other 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, where the application processor mainly processes an operating system, a user interface, and application programs or instructions, and the modem processor mainly processes wireless communication, such as a baseband processor. As can be understood, the modem processor does not have to be integrated into the processor 710.

[0098] Here, the radio frequency unit 701 is used for receiving a configuration message sent by a network side equipment, where the configuration message includes multiple initial access resources to be configured by the network side equipment for different types of terminals.

[0099] The processor 710 is used for selecting an initial access resource corresponding to a terminal type from the plurality of initial access resources, and performing an initial access operation according to the selected initial access resource.

[0100] After receiving the configuration message sent by the network side equipment, the terminal can select an initial access resource corresponding to the terminal type from the multiple initial access resources, and further perform an initial access operation based on the selected initial access resource, that is, the terminal can select an initial access resource corresponding to the terminal type from the multiple initial access resources without occupying the initial access resources of other types of terminals, thereby solving the problem in the prior art that all types of terminals share the same initial access resource, which affects the performance of different types of terminals in the initial access process.

[0101] Specifically, an embodiment of the present application further provides a network side device. As shown in Fig. 8, the network side device 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 through the antenna 81, and transmits the received information to the baseband device 83 for processing. In the downlink direction, the baseband device 83 processes the information to be transmitted and transmits it to the radio frequency device 82, and the radio frequency device 82 processes the received information and then sends it out through the antenna 81.

[0102] The above frequency band processing device may be located in a baseband device 83, and the methods performed by the network side equipment in the above embodiments 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 FIG. 8, where one chip is, for example, a processor 84, connected to a memory 85, and calls the program in the memory 85 to perform the operation of the network device shown in the above method embodiment.

[0104] The baseband device 83 may further include a network interface 86, which is used to exchange information with the radio frequency device 82, and which may be, for example, a common public radio interface (CPRI).

[0105] Specifically, the network side equipment of the embodiment of the present invention further includes instructions or programs stored in memory 85 and capable of running on processor 84, and processor 84 can call the instructions or programs in memory 85 to execute the methods performed by each module shown in FIG. 2 or 3, and achieve the same technical effect, which will not be described further here in order to avoid repetition of description.

[0106] The embodiments of the present application further provide a readable storage medium, on which a program or instruction is stored, and when the program or instruction is executed by a processor, the processes of the above-mentioned initial access method embodiments can be realized and the same technical effects can be achieved. In order to avoid repetition, no further description will be given here.

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

[0108] The embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, the processor is used to run a program or instruction of a network side device, and realize each process of the embodiment of the above initial access method, and can achieve the same technical effect. In order to avoid repetition, no further description will be given here.

[0109] It should be understood that the chips referred to in the embodiments of the present application may be referred to as system level chips, system chips, chip systems, or systems on chips.

[0110] The embodiments of the present application further provide a computer program product, the computer program product being stored in a non-volatile readable storage medium, the computer program product being executed by at least one processor to realize each process of the embodiments of the above initial access method, and to achieve the same technical effect. In order to avoid repetition, no further description will be given here.

[0111] It should be explained that in this specification, the terms "comprise", "include", or any other variants thereof are intended to cover the non-exclusive "comprise", whereby a process, method, article, or apparatus that includes a set of elements includes not only those elements, but also other elements not specifically listed or inherent to such process, method, article, or apparatus. Absent any further limitations, an element limited by the phrase "comprises a" does not preclude the presence of other identical elements in the process, method, article, or apparatus that includes the element. It should be noted that the scope of the method and apparatus in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may include performing functions in an essentially simultaneous manner or in reverse order based on the functions involved, for example, the described method may be performed in a different order than described, and various steps may be added, omitted, or combined. Also, features described with reference to some examples may be combined with other examples.

[0112] From the above description of the embodiments, it is clear to those skilled in the art that the methods of the above embodiments can be realized in the form of software and a necessary general-purpose hardware platform. Of course, they can also be realized in hardware, but in many cases the former is a more preferred embodiment. Based on this understanding, the technical solution of the present application may be substantially or in part embodied in the form of a software product. The computer software product is stored in a storage medium (e.g., ROM / RAM, magnetic disk, optical disk) and includes some instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0113] The above describes the embodiments of the present application in conjunction with the drawings, but the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not limiting. Those skilled in the art can take the suggestions of this application and make many forms without departing from the spirit and scope of protection of the claims, all of which belong to the protection scope of this application.

Claims

1. An initial access method for use in a terminal, comprising: Receiving a configuration message sent by a network side device, the configuration message including a plurality of initial access resources to be configured by the network side device for different types of terminals; selecting an initial access resource corresponding to a terminal type from the plurality of initial access resources; performing an initial access operation based on the selected initial access resource; The terminals include a first type of terminal and a second type of terminal; When the terminal selecting the initial access resource is the first type terminal, selecting an initial access resource corresponding to the terminal type from the plurality of initial access resources includes: Selecting a corresponding initial access resource from the plurality of initial access resources based on attributes of the first type of terminal, wherein the attributes of the first type of terminal include at least one of the following: a capability of the first type of terminal, a capability set of the first type of terminal, a function of the first type of terminal, a function set of the first type of terminal, and subscription information of the first type of terminal; According to a preset weight on the corresponding initial access resource of the first type terminal, selecting an initial access resource from the plurality of initial access resources, the preset weight of which is greater than a preset threshold; Selecting an initial access resource from a plurality of initial access resources, the initial access resource having a preset weight greater than a preset threshold and satisfying a correspondence relationship between the identifier of the first type terminal and the initial access resource; and selecting a corresponding initial access resource from the plurality of initial access resources based on a correspondence relationship between a public land mobile network (PLMN) identifier and an initial access resource; The configuration message is carried by at least one of a physical broadcast channel PBCH, a master information block MIB, a first system information block SIB, an extended system information and a dedicated RRC message; Wherein, the first SIB is a SIB corresponding to a second type of terminal; The extended system information includes: System information corresponding to the first type of terminal in a first SIB1, the first SIB1 being a SIB in the first SIB, and the first SIB being a SIB corresponding to a second type of terminal; System information corresponding to the first type of terminal in SIBx, where x is an integer greater than 1, the SIBx belongs to a second SIB, and the second SIB is a SIB corresponding to the first type of terminal; system information corresponding to the first type of terminal in SIBy, where y is an integer greater than 1, the SIBy is a SIB in the first SIB, and the first SIB is a SIB corresponding to a second type of terminal.

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

3. The method of claim 1 , wherein the configuration message further includes a second instruction message for indicating initial access resources of the first type of terminal.

4. The method according to claim 1 , wherein the configuration message further includes a third instruction message for instructing an initial access operation which the initial access resources of the first type of terminal are used to perform.

5. The initial access operation includes: The method of claim 1 , comprising at least one of: camping, receiving system information, monitoring paging messages, monitoring advance directive information, and random access.

6. When the terminal selecting the initial access resource is the first type terminal, performing an initial access operation according to the selected initial access resource, The method of claim 5, comprising: receiving system information and monitoring a paging message 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 as a resource on which the second type terminal receives system information and monitors a paging message, and the second initial access resource is different from a resource on which the second type terminal performs random access.

7. When the terminal selecting the initial access resource is the first type terminal, performing an initial access operation according to the selected initial access resource, The method of claim 5, further 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, where the third initial access resource is the same as a resource on which the second type terminal receives system information, and the fourth initial access resource is different from a resource on which the second type terminal performs random access and paging message monitoring.

8. The 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. A terminal comprising a processor, a memory, and a program or instructions stored in the memory and operable to run on the processor, the program or instructions implementing the steps of the initial access method according to any one of claims 1 to 8 when executed by the processor.

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