Initial access method and device, terminal and network side equipment

Abstract

The invention discloses an initial access method and device, a terminal and network side equipment. The method comprises the steps that a configuration message sent by network side equipment is received, and the configuration message comprises a plurality of initial access resources; the plurality of initial access resources are configured for different types of terminals by network side equipment; 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

[0001] This application is a divisional application. The original application number is 202010762014.2. The application date is July 31, 2020. The name is Initial Access Method and Device, Terminal and Network Side Equipment. Technical Field

[0002] The present application belongs to the field of communication technology, and specifically relates to an initial access method and device, 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 (light / lite UE, reduced capability UE, referred to as NR-light / Lite or RedCapUE) are introduced, which are mainly suitable for wearable devices (Wearable Device) or industrial sensor terminals (Industry Sensor) or video surveillance equipment in factory environments. However, in the NR system, there is no distinction between different types of user terminals (User Equipment, UE), and all UEs share the same initial access resources. When the number of lightweight terminals is too large, it may affect the access or post-access performance of ordinary UEs, such as access failure, increased delay, etc. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide an initial access method and apparatus, a terminal and a network-side device, which can solve the problem in the prior art that all terminals share the same initial access resources, resulting in an impact on the performance of different types of terminals during the initial access process.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] In a first aspect, an initial access method is provided, which is applied to a terminal, comprising: receiving a configuration message sent by a network side device, wherein the configuration message includes multiple initial access resources; the multiple initial access resources are configured by the network side device for different types of terminals; selecting an initial access resource corresponding to the terminal type from the multiple initial access resources; and performing an initial access operation based on the selected initial access resource.

[0007] In a second aspect, an initial access device is provided, comprising: a receiving module for receiving a configuration message sent by a network side device, wherein the configuration message includes multiple initial access resources; the multiple initial access resources are configured by the network side device for different types of terminals; a selection module for selecting an initial access resource corresponding to the terminal type from the multiple initial access resources; and an execution module for performing an initial access operation based on the selected initial access resource.

[0008] In a third aspect, an initial access method is provided, which is applied to a network side device, and includes: configuring multiple initial access resources for different types of terminals; sending a configuration message to the different types of terminals, wherein the configuration message is used to indicate that the network side device is configured with multiple initial access resources for different types of terminals.

[0009] In a fourth aspect, an initial access device is provided, comprising: a configuration module for configuring multiple initial access resources for different types of terminals; a sending module for sending configuration messages to the different types of terminals, wherein the configuration messages are used to indicate that the network side device is configured with multiple initial access resources for different types of terminals.

[0010] In a fifth aspect, a terminal is provided, comprising a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the method described in the first aspect.

[0011] In the sixth aspect, a network side device is provided, which includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the method described in the third aspect.

[0012] In the seventh aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the third aspect are implemented.

[0013] In an eighth aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a network-side device program or instruction to implement the method described in the first aspect, or to implement the method described in the third aspect.

[0014] In an embodiment of the present application, after the network side device sends a configuration message, the terminal can select an initial access resource corresponding to the terminal type from 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 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, resulting in an impact on the performance of different types of terminals during the initial access process, and achieving the effect of load balancing on the network side. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A block diagram showing a wireless communication system to which the embodiments of the present application can be applied;

[0016] Figure 2 This is the initial access method process of the embodiment of the present application Figure 1 ;

[0017] Figure 3 This is the initial access method process of the embodiment of the present application Figure 2 ;

[0018] Figure 4 This is a schematic diagram of the structure of the initial access device in the embodiment of the present application. Figure 1 ;

[0019] Figure 5 This is a schematic diagram of the structure of the initial access device in the embodiment of the present application. Figure 2 ;

[0020] Figure 6 is a schematic diagram of the structure of a communication device according to an embodiment of the present application;

[0021] Figure 7 A schematic diagram of the hardware structure of a terminal for implementing an embodiment of the present application;

[0022] Figure 8 It is a schematic diagram of the structure of the network side device of an embodiment of the present application. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0024] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first" and "second" are generally of the same type, and the number of objects is not limited, for example, the object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally represents that the objects associated with each other are in an "or" relationship.

[0025] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies. However, the following description describes a New Radio (NR) system for illustrative purposes, and the NR terminology is used in most of the following descriptions, although these technologies can also be applied to applications other than NR system applications, such as the 6th generation (6 th Generation, 6G) communication system.

[0026] Figure 1A block diagram of a wireless communication system applicable to an embodiment of the present application is shown. The wireless communication system includes a terminal 11 and a network side device 12. Among them, the terminal 11 can also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), a wearable device (Wearable Device) or a vehicle-mounted device (Vehicle User Equipment, VUE), a pedestrian terminal (Pedestrian User Equipment, PUE) and other terminal side devices, and the wearable device includes: a bracelet, a headset, glasses, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 can be a base station or a core network, wherein the base station can be referred to as a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (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 and receiving point (Transmitting Receiving Point, TRP) or some other suitable term in the field. As long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

[0027] The following describes the initial access method provided in the embodiment of the present application in detail through specific embodiments and application scenarios in conjunction with the accompanying drawings.

[0028] The embodiment of the present application provides an initial access method, which is applied to a terminal. Figure 2 This is the initial access method process of the embodiment of the present application Figure 1 ,like Figure 2 As shown, the steps of the method include:

[0029] Step S202, receiving a configuration message sent by a network side device, wherein the configuration message includes a plurality of initial access resources; the plurality of initial access resources are configured by the network side device for different types of terminals;

[0030] Step S204, selecting an initial access resource corresponding to the terminal type from multiple initial access resources;

[0031] Step S206: performing an initial access operation based on the selected initial access resource.

[0032] Through the above steps S202 to S206, after the configuration message is sent by the network side device, the terminal can select the initial access resource corresponding to the terminal type from multiple initial access resources, and then perform the 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 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, resulting in the performance of different types of terminals being affected during the initial access process, and achieving the effect of load balancing on the network side.

[0033] Optionally, the terminals in the embodiments of the present application may include: a first type of terminal and a second type of terminal; 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 an ordinary terminal; an ordinary terminal may be understood as a non-lightweight terminal, or an ordinary type of terminal defined in Rel15 or Rel16.

[0034] Among them, NR-Light / Redcap: In the development of 5G NR, in order to adapt to different application scenarios and needs, lightweight terminals are introduced, which are mainly suitable for wearable devices (Wearable Device) or industrial sensor terminals (Industry Sensor) or video surveillance equipment in factory environments. This type of terminal usually refers to some devices with limited capabilities. Its reduced capability is reflected in many aspects, such as lower device complexity, smaller device size, weaker processing power, smaller or fewer supported features (supported number of carrier aggregation CCs, supported number of receiving antennas, maximum supported bandwidth, supported peak rate), etc.

[0035] It should be noted that, in the present application, the specific terminal types of the first type terminal and the second type terminal are not limited. The first type terminal and the second type terminal are just two different types of terminals in the specification.

[0036] In an optional implementation manner of the embodiment of the present application, the initial access resource involved in the embodiment of the present application includes at least one of the following:

[0037] Synchronous signal block SSB (Synchronous Signal Block), SS block based RRM measurement timing configuration SMTC (SS block based RRM measurement timing configuration), search space, control resource set CORESET (Control-resource set), uplink bandwidth part BWP (Band Width Part), downlink bandwidth part BWP, reference signal RS.

[0038] The configuration messages involved in the embodiments of the present application may be carried by at least one of the following: a physical broadcast channel PBCH (Physical Broadcast Channel), a master information block MIB (Master Information Block), system information of the first SIB (System Information Block), extended system information, and a dedicated RRC (Radio Resource Control) message; wherein the first SIB is the SIB corresponding to the second type of terminal.

[0039] Optionally, the extended system information in the embodiment of the present application includes at least one of the following:

[0040] 1) System information corresponding to the first type of terminal in the first SIB1, the first SIB1 is the SIB in the first SIB, and the first SIB is the SIB corresponding to the second type of terminal;

[0041] 2) System information corresponding to the first type of terminal in SIBx, where x is an integer greater than 1, SIBx belongs to the second SIB, and the second SIB is the SIB corresponding to the first type of terminal;

[0042] 3) System information corresponding to the first type of terminals in SIBy, y is an integer greater than 1, SIBy is a SIB in the first SIB, the first SIB is the SIB corresponding to the second type of terminals, and SIBy includes the system information corresponding to the second type of terminals.

[0043] The system information corresponding to the first type of terminal in the first SIB1 is used to indicate any one of the following: system information supporting the first type of terminal; system information allowing the first type of terminal to access or reside.

[0044] The system information supporting the first type of terminals may further refer to: system information supporting the access or residence of the first type of terminals; the system information corresponding to the first type of terminals in SIBx and SIBy is used to indicate: system information required for the first type of terminals to access the cell.

[0045] Optionally, when the terminal that selects the initial access resource is a first type of terminal, the method of selecting the initial access resource corresponding to the terminal type from multiple initial access resources involved in step S204 of the embodiment of the present application includes at least one of the following:

[0046] Mode 1: selecting an initial access resource corresponding to a first type of terminal from a plurality of initial access resources, wherein 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;

[0047] For 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 the corresponding initial access resources. In the specific application scenario, the ordinary terminal can select SSB1, while the lightweight terminal can select SSB2; the ordinary terminal can select the broadband BWP, while the lightweight terminal can select the narrowband initial BWP. That is, through this method, different types of terminals can avoid using the same initial access resources.

[0048] Method 2: Selecting a corresponding initial access resource from multiple initial access resources according to the attributes of the first category terminal; wherein the attributes of the first category terminal include at least one of the following: capability (capability) of the first category terminal, capability set (capability set) of the first category terminal, function (feature / functionality) of the first category terminal, function set (feature / functionality set) of the first category terminal, category of the first category terminal, application scenario (use case) of the first category terminal, and subscription information (subscription information) of the first category terminal.

[0049] It should be noted that the above terminal types generally correspond to the categories defined in the protocol, which may be defined based on feature sets or capability sets or different data rates (e.g., data rates), such as cat.1, cat.2, ... Different types may also be defined based on feature sets or capability sets or different data rates, or for different types, even the same category may correspond to different types, such as high-end UE and low-end UE. For different use cases, different categories or different types may correspond to different application scenarios, or the same type or category of terminals may be used in different application scenarios, such as wearable devices for personal services and industry sensors for industrial fields. For low end UEs, low end wearable and low end industry sensors can also be distinguished. The above-mentioned subscription information generally refers to the subscription information of the UE, such as 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 tariff information, SIM card priority or operator customer level, etc. Different initial access resources can be configured to correspond to different subscription information.

[0050] For this method 2, in a specific application scenario, the first type of terminal can be: a terminal with a bandwidth capability less than 100MHz, or a number of antennas less than 4 / equal to 2 / equal to 1, or a peak rate capability less than 100Mbps, or a processing delay capability less than a preset time, or a supported number of carriers less than a preset value, or a transmission power capability less than a preset value. Of course, the attributes of the first type of terminal are only examples, and the attribute values ​​of the above-mentioned first type of terminal can be set or adjusted accordingly as needed. In other words, for the same type of terminal, the corresponding initial access resource can also be selected according to its attribute value.

[0051] The first category of terminals may also be: terminals of a certain category (such as lightweight terminals), or terminals of a certain type (such as a certain type of lightweight terminals, low end or high end UEs), or terminals of a certain application scenario (such as low end terminals for wearable application scenarios, high end terminals for wearable application scenarios, low end terminals for industrial sensors, high end terminals for industrial monitoring), or terminals with certain contract information (such as terminals for wearable devices such as contracted watches, or terminals for contracted industrial fields).

[0052] Mode 3: selecting a corresponding initial access resource from multiple initial access resources according to the correspondence between the identifier of the first type of terminal and the initial access resource;

[0053] For this mode 3, in a specific application scenario, it can be: the identifier UE_ID of the first type of terminal includes at least one of the following: all or part of the bits of IMSI / IMEI / S-TMSI / TMSI / P-TMSI / Configured ID / Resume ID / C-RNTI, etc. Based on this, the Initial BWP of the first type of terminal for initial access related operations = UE_ID mode N, where N is the number of initial BWPs that the first type of terminal can use for initial access related operations, and the relationship between other initial access resources and the identifier of the first type of terminal is similar.

[0054] Mode 4: selecting an initial access resource having a preset weight greater than a preset threshold from multiple initial access resources according to a preset weight of the first type of terminal on the corresponding initial access resource;

[0055] For this mode 4, the Initial BWP used by the first type of terminal for initial access related operations has a greater probability of selecting an initial access resource with a higher weight.

[0056] Mode 5: Selecting an initial access resource whose preset weight is greater than a preset threshold and satisfies the corresponding relationship from multiple initial access resources;

[0057] For this method 5, it should be noted that the initial access resource greater than the preset threshold may be determined by the preset weight first, and then the required initial access resource may 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 may be determined according to the preset weight and the UE-ID. That is, the combination of the above methods 3 and 4.

[0058] Mode 6: selecting a corresponding initial access resource from multiple initial access resources according to the correspondence between the cell identifier PCI or PLMN (Public Land Mobile Network) identifier of the cell where the first type of terminal is located and the initial access resource.

[0059] Among them, the method 3 and the method 6 involved in the method are similar, and the difference is that one is the identifier of the first type of terminal, and the other is the cell identifier or the PLMN identifier.

[0060] It should be noted that the configuration message in the embodiment of the present application also includes a first indication message, wherein the first indication message is used to indicate the correspondence between the initial access resource and the terminal type. Based on this, selecting the initial access resource corresponding to the terminal type from multiple initial access resources in the embodiment of the present application includes: selecting the initial access resource corresponding to the terminal type according to the correspondence. That is, the first type of terminal can determine the corresponding initial access resource according to the correspondence.

[0061] Optionally, the configuration message in the embodiment of the present application further includes a second indication message, wherein the second indication message is used to indicate the initial access resources of the first type of terminal. That is, in addition to the above-mentioned first indication message, in the present application, the second indication message can be used to implicitly indicate that the network supports the first type of terminal in the cell where it is located, or supports the access or residence of the first type of terminal.

[0062] Optionally, the configuration message in the embodiment of the present application also includes a third indication message, wherein the third indication message is used to indicate that the initial access resources of the first category of terminals are used to perform an initial access operation.

[0063] In an optional implementation manner of an embodiment of the present application, the initial access operation involved in the embodiment of the present application includes at least one of the following: camping, receiving system information, monitoring paging messages, monitoring advance indication information, and random access.

[0064] The advance indication information in the embodiment of the present application may be one of the following: Wake-up signaling, Go-to-sleep signaling, DCP (DCI with CRC scrambled by PS-RNTI) signaling, paging indication. The random access may be an initial random access.

[0065] In an optional implementation manner of an embodiment of the present application, when the terminal that selects the initial access resource is a first category terminal, the method for performing the initial access operation based on the selected initial access resource involved 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; wherein the first initial access resource is the same as the resource for receiving system information and monitoring paging messages for the second category terminal; and the second initial access resource is different from the resource for random access for the second category terminal.

[0066] That is to say, the first type of terminal and the second type of terminal can use the relevant DL initial BWP or coreset#0 or SSB to receive SI and monitor paging messages, and use different initial access resources for random access, specifically: use different UL initial BWP to send preamble (random access preamble code) and / or msg.3; use the same DL initial BWP to receive msg.2 and / or msg.4 or use different DL / UL initial BWP for RACH.

[0067] In an optional implementation manner of an embodiment of the present application, when the terminal that selects the initial access resource is a first category terminal, the initial access operation based on the selected initial access resource involved in step S206 is performed, including: receiving system information based on the selected third initial access resource, and performing random access and monitoring paging messages based on the selected fourth initial access resource; wherein the third initial access resource is the same as the resource for receiving system information by the second category terminal; and the fourth initial access resource is different from the resource for random access and monitoring paging messages by the second category terminal.

[0068] That is to say, the first type of terminal and the second type of terminal can use the relevant DL initial BWP or coreset#0 or SSB to receive SI, and use different initial access resources to monitor paging messages and random access; specifically, it can be: use different DL initial BWP to monitor paging messages; use different UL initial BWP to send preamble and / or msg.3; use the same DL initial BWP to receive msg.2 and / or msg.4. Or: use different DLinitial BWP to monitor paging messages; use different DL / UL initial BWP for RACH.

[0069] above Figure 2 The present application is described from the terminal side, and the following will describe the present application from the network side device.

[0070] Figure 3 This is the initial access method process of the embodiment of the present application Figure 2 , applied to network-side devices, such as Figure 3 As shown, the steps of the method include:

[0071] Step S302, configuring multiple initial access resources for different types of terminals;

[0072] Step S304: Send configuration messages to terminals of different types, wherein the configuration messages are used to instruct the network side device to configure multiple initial access resources for terminals of different types.

[0073] In an optional implementation manner of the embodiment of the present application, the configuration message in the embodiment of the present 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;

[0074] The first SIB is the SIB corresponding to the second type of terminal.

[0075] Furthermore, the extended system information includes at least one of the following:

[0076] 1) System information corresponding to the first type of terminal in the first SIB1, the first SIB1 is the SIB in the first SIB, and the first SIB is the SIB corresponding to the second type of terminal; wherein, in a specific application scenario, the system information corresponding to the first type of terminal in the SIB1 can be SIB1-extend, which means that on the basis of the existing SIB1, an additional SIB1 system message is extended to indicate that support for the first type of terminal is allowed, or support for access or residence of the first type of terminal is allowed, or access of the first type of terminal is allowed.

[0077] 2) System information corresponding to the first type of terminals in SIBy, y is an integer greater than 1, SIBy is a SIB in the first SIB, the first SIB is the SIB corresponding to the second type of terminals, and SIBy includes or does not include system information corresponding to the second type of terminals.

[0078] Among them, in a specific application scenario, SIBx may be SIB2-light, SIB3-light, SIB4-light…SIBn-light, which are different from the existing SIB2, SIB3, SIB4, … SIBn.

[0079] 3) System information corresponding to the first type of terminals in SIBx, where x is an integer greater than 1, and the SIBx belongs to the second SIB, and the second SIB is the SIB corresponding to the first type of terminals.

[0080] That is to say, SIBx can be SIB2-light, SIB3-light, SIB4-light...SIBn-light, which are different from the existing SIB2, SIB3, SIB4, ... SIBn, or it can be an independent SIBx.

[0081] Optionally, the system information corresponding to the first category of terminals in the first SIB1 is used to indicate any one of the following: system information supporting the first category of terminals; system information allowing the first category of terminals to access or reside.

[0082] Optionally, the system information corresponding to the first type of terminals in SIBx and SIBy is used to indicate: system information required for the first type of terminals to access the cell where they are located.

[0083] Optionally, the configuration message in the embodiment of the present application also includes at least one of a first indication message, a second indication message and a third indication message; wherein the first indication message is used to indicate the correspondence between the initial access resources and the terminal type; the second indication message is used to indicate the initial access resources of the first category of terminals; and the third indication message is used to indicate the initial access operation performed by the initial access resources of the first category of terminals.

[0084] Through the initial access method in the embodiment of the present application, since the initial access resource corresponding to the terminal type can be selected from multiple initial access resources, it can effectively ensure that a certain type of terminal quickly accesses the system without affecting the performance of other types of terminals.

[0085] It should be noted that the execution subject of the initial access method provided in the embodiment of the present application may be an initial access device, or a control module in the initial access device for executing the method for initial access. In the embodiment of the present application, the method for executing initial access by the initial access device is taken as an example to illustrate the initial access device provided in the embodiment of the present application.

[0086] The embodiment of the present application provides an initial access device, Figure 4 This is a schematic diagram of the structure of the initial access device in the embodiment of the present application. Figure 1 , applied to terminals, such as Figure 4 As shown, the device comprises:

[0087] The receiving module 42 is used to receive a configuration message sent by a network side device, wherein the configuration message includes a plurality of initial access resources; the plurality of initial access resources are configured by the network side device for different types of terminals;

[0088] A selection module 44, configured to select an initial access resource corresponding to the terminal type from a plurality of initial access resources;

[0089] The execution module 46 is configured to execute an initial access operation based on the selected initial access resource.

[0090] Optionally, the terminal in the embodiment of the present application may include: a first type of terminal and a second type of terminal.

[0091] Based on this, when the terminal that selects the initial access resource is a first-category terminal, the selection module 44 in the embodiment of the present application includes at least one of the following:

[0092] A first selection unit, configured to select an initial access resource corresponding to a first type of terminal from a plurality of initial access resources, wherein 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;

[0093] A second selection unit is configured to select a corresponding initial access resource from a plurality of initial access resources according to an attribute of the first class terminal; wherein the attribute of the first class terminal includes at least one of the following: capability of the first class terminal, capability set of the first class terminal, function of the first class terminal, function set of the first class terminal, type of the first class terminal, category of the first class terminal, application scenario of the first class terminal, and contract information of the first class terminal;

[0094] A third selection unit, configured to select a corresponding initial access resource from a plurality of initial access resources according to a correspondence between an identifier of the first type of terminal and the initial access resource;

[0095] a fourth selection unit, configured to select, from a plurality of initial access resources, an initial access resource having a preset weight greater than a preset threshold value according to a preset weight of the first category of terminals on the corresponding initial access resources;

[0096] A fifth selection unit, configured to select an initial access resource having a preset weight greater than a preset threshold and satisfying a corresponding relationship from a plurality of initial access resources;

[0097] The sixth selection unit is used to select a corresponding initial access resource from multiple initial access resources according to the correspondence between the cell identifier of the cell where the first type of terminal is located or the public land mobile network PLMN identifier and the initial access resource.

[0098] Optionally, the configuration message in the embodiment of the present application also includes a first indication message, wherein the first indication message is used to indicate the correspondence between the initial access resources and the terminal type, and the selection module is also used to select the initial access resources corresponding to the terminal type according to the correspondence.

[0099] Optionally, the configuration message in the embodiment of the present application also includes a second indication message, wherein the second indication message is used to indicate the initial access resources of the first category of terminals.

[0100] Optionally, the configuration message in the embodiment of the present application also includes a third indication message, wherein the third indication message is used to indicate that the initial access resources of the first category of terminals are used to perform an initial access operation.

[0101] Optionally, the initial access operation in the embodiment of the present application may include at least one of the following: camping, receiving system information, monitoring paging messages, monitoring advance indication information, and random access.

[0102] Optionally, in the present application, when the terminal that selects the initial access resource is a first-category terminal, performing an initial access operation based on the selected initial access resource includes:

[0103] System information is received and paging messages are monitored based on the selected first initial access resources, and random access is performed based on the selected second initial access resources; wherein the first initial access resources are the same as the resources for the second type of terminal to receive system information and monitor paging messages; and the second initial access resources are different from the resources for the second type of terminal to perform random access.

[0104] Optionally, when the terminal that selects the initial access resource is a first category terminal, the selection module is also used to receive system information based on the selected third initial access resource, and to perform random access and monitor paging messages based on the selected fourth initial access resource; wherein the third initial access resource is the same as the resource for the second category terminal to receive system information; and the fourth initial access resource is different from the resource for the second category terminal to perform random access and monitor paging messages.

[0105] Optionally, the initial access resources in the embodiment of the present application include at least one of the following: a synchronization signal block SSB, a measurement time configuration SMTC based on the synchronization signal block, a search space, a control resource set CORESET, an uplink bandwidth part BWP, a downlink bandwidth part BWP, and a reference signal RS.

[0106] Optionally, the configuration message in the embodiment of the present application is carried by at least one of the following: physical broadcast channel PBCH, master information block MIB, first SIB system information block, extended system information and dedicated RRC message; wherein the first SIB is the SIB corresponding to the second type of terminal.

[0107] Optionally, the extended system information in the embodiment of the present application includes at least one of the following:

[0108] 1) System information corresponding to the first type of terminal in the first SIB1, the first SIB1 is the SIB in the first SIB, and the first SIB is the SIB corresponding to the second type of terminal;

[0109] 2) System information corresponding to the first type of terminal in SIBx, where x is an integer greater than 1, SIBx belongs to the second SIB, and the second SIB is the SIB corresponding to the first type of terminal;

[0110] 3) System information corresponding to the first type of terminals in SIBy, y is an integer greater than 1, SIBy is a SIB in the first SIB, the first SIB is the SIB corresponding to the second type of terminals, and SIBy includes the system information corresponding to the second type of terminals.

[0111] The system information corresponding to the first type of terminal in the first SIB1 is used to indicate any one of the following: system information supporting the first type of terminal; system information allowing the first type of terminal to access or reside.

[0112] The system information corresponding to the first type of terminal in SIBx and SIBy is used to indicate: the system information required for the first type of terminal to access the cell where it is located.

[0113] The above is an explanation of the present application from the terminal side, and the following is an explanation of the present application from the network side device.

[0114] The embodiment of the present application also provides an initial access device, Figure 5 This is a schematic diagram of the structure of the initial access device in the embodiment of the present application. Figure 2 , applied to network-side devices, such as Figure 5 As shown, the device comprises:

[0115] A configuration module 52, configured to configure multiple initial access resources for different types of terminals;

[0116] The sending module 54 is used to send configuration messages to different types of terminals, wherein the configuration messages are used to instruct the network side device to configure multiple initial access resources for different types of terminals.

[0117] Optionally, the configuration message in the embodiment of the present 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;

[0118] The terminals include: first-category terminals and second-category terminals, and the first SIB is the SIB corresponding to the second-category terminals.

[0119] Optionally, the extended system information includes at least one of the following:

[0120] 1) System information corresponding to the first type of terminal in the first SIB1, the first SIB1 is the SIB in the first SIB, and the first SIB is the SIB corresponding to the second type of terminal;

[0121] 2) System information corresponding to the first type of terminals in SIBy, y is an integer greater than 1, SIBy is a SIB in the first SIB, the first SIB is the SIB corresponding to the second type of terminals, and SIBy includes or does not include system information corresponding to the second type of terminals.

[0122] 3) System information corresponding to the first type of terminals in SIBx, where x is an integer greater than 1, and the SIBx belongs to the second SIB, and the second SIB is the SIB corresponding to the first type of terminals.

[0123] Optionally, the system information corresponding to the first category of terminals in the first SIB1 is used to indicate any one of the following: system information supporting the second category of terminals; system information allowing the second category of terminals to access or reside.

[0124] Optionally, the system information corresponding to the first type of terminals in SIBx and SIBy is used to indicate: system information required for the first type of terminals to access the cell where they are located.

[0125] Optionally, the configuration message also includes at least one of a first indication message, a second indication message and a third indication message; wherein the first indication message is used to indicate the correspondence between the initial access resources and the terminal type; the second indication message is used to indicate the initial access resources of the first category of terminals; and the third indication message is used to indicate the initial access operation performed by the initial access resources of the first category of terminals.

[0126] Through the embodiments of the present application, after the network side device sends a configuration message, the terminal can select an initial access resource corresponding to the terminal type from 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 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, resulting in an impact on the performance of different types of terminals during the initial access process, and achieving the effect of load balancing on the network side.

[0127] The initial access device in the embodiment of the present application may be a device, or a component, integrated circuit, or chip in a terminal. The device may be a mobile terminal or a non-mobile terminal. For example, 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 (Network Attached Storage, NAS), a personal computer (personal computer, PC), a television (television, TV), a teller machine or a self-service machine, etc., which is not specifically limited in the embodiment of the present application.

[0128] The initial access device in the embodiment of the present application may be a device having an operating system. The operating system may be an Android operating system, an iOS operating system, or other possible operating systems, which are not specifically limited in the embodiment of the present application.

[0129] The initial access device provided in the embodiment of the present application can achieve Figures 2 to 3 The various processes implemented by the method embodiment and achieving the same technical effect are not described here to avoid repetition.

[0130] Optional, such as Figure 6 As shown, 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 executable on the processor 601. For example, when the communication device 600 is a terminal, the program or instruction is executed by the processor 601 to implement each process of the above-mentioned initial access method embodiment, and can achieve the same technical effect. When the communication device 600 is a network side device, the program or instruction is executed by the processor 601 to implement each process of the above-mentioned initial access method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0131] Figure 7 A schematic diagram of the hardware structure of a terminal for implementing an embodiment of the present application.

[0132] The terminal 700 includes but is 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.

[0133] Those skilled in the art will appreciate that the terminal 700 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 710 through a power management system, thereby implementing functions such as managing charging, discharging, and power consumption management through the power management system. Figure 7 The terminal structure shown in the figure does not constitute a limitation on the terminal, and the terminal may include Figure 7 More or fewer components, or combinations of certain components, or different arrangements of components are shown, which will not be described in detail here.

[0134] 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 the image data of the static picture or video obtained by the image capture device (such as a camera) in the video capture mode or the image capture mode. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured 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. Other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0135] In the embodiment of the present application, the radio frequency unit 701 receives downlink data from the network side device and sends it to the processor 710 for processing; in addition, the uplink data is sent to the network side device. 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, etc.

[0136] The memory 709 can be used to store software programs or instructions and various data. The memory 709 can mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area can store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 709 can include a high-speed random access memory, and can also include a non-volatile memory, wherein the non-volatile memory can be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or a flash memory. For example, at least one disk storage device, a flash memory device, or other non-volatile solid-state storage devices.

[0137] The processor 710 may include one or more processing units; optionally, the processor 710 may integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, and application programs or instructions, etc., and the modem processor mainly processes wireless communications, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 710.

[0138] The radio frequency unit 701 is used to receive a configuration message sent by a network side device, wherein the configuration message includes multiple initial access resources; the multiple initial access resources are configured by the network side device for different types of terminals.

[0139] The processor 710 is configured to select an initial access resource corresponding to the terminal type from the multiple initial access resources; and perform an initial access operation based on the selected initial access resource.

[0140] After the terminal receives the configuration message sent by the network side device, it can select the initial access resource corresponding to the terminal type from multiple initial access resources, and then perform the 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 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, resulting in the performance of different types of terminals being affected during the initial access process.

[0141] Specifically, the embodiment of the present application also provides a network side device. Figure 8 As shown, the network device 800 includes: an antenna 81, a radio frequency device 82, and a baseband device 83. The antenna 81 is connected to the radio frequency device 82. In the uplink direction, the radio frequency device 82 receives information through the antenna 81 and sends the received information to the baseband device 83 for processing. In the downlink direction, the baseband device 83 processes the information to be sent and sends it to the radio frequency device 82. The radio frequency device 82 processes the received information and sends it out through the antenna 81.

[0142] The frequency band processing device may be located in the baseband device 83 . The method executed by the network-side device in the above embodiment may be implemented in the baseband device 83 . The baseband device 83 includes a processor 84 and a memory 85 .

[0143] The baseband device 83 may include, for example, at least one baseband board on which a plurality of chips are arranged. Figure 8 As shown, one of the chips is, for example, a processor 84, which is connected to a memory 85 to call a program in the memory 85 to execute the network device operations shown in the above method embodiment.

[0144] The baseband device 83 may further include a network interface 86 for exchanging information with the radio frequency device 82 , and the interface may be, for example, a common public radio interface (CPRI).

[0145] Specifically, the network side device of the embodiment of the present invention further includes: an instruction or program stored in the memory 85 and executable on the processor 84, and the processor 84 calls the instruction or program in the memory 85 to execute Figure 2 Or the method executed by each module shown in 3, and achieves the same technical effect, to avoid repetition, it will not be repeated here.

[0146] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned initial access method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0147] 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.

[0148] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run network-side device programs or instructions to implement the various processes of the above-mentioned initial access method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0149] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0150] An embodiment of the present application further provides a computer program product, which is stored in a non-volatile readable storage medium. The computer program product is executed by at least one processor to implement the various processes of the above-mentioned initial access method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0151] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0152] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for a terminal (which can 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.

[0153] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. An initial access method, applied to a terminal, comprising: Receiving a configuration message sent by a network side device, wherein the configuration message includes a plurality of initial access resources; the plurality of initial access resources are configured by the network side device for different types of terminals; Selecting an initial access resource corresponding to the terminal type from the multiple initial access resources; Performing an initial access operation based on the selected initial access resource, Wherein, when the terminal for selecting the initial access resource is a first type of terminal, selecting an initial access resource corresponding to the terminal type from the multiple initial access resources includes: Select a corresponding initial access resource from the multiple initial access resources according to the attributes of the first category terminal; wherein the attributes of the first category terminal include the type of the first category terminal and at least one of the following: number of antennas, subscription information, bandwidth capability, peak rate, processing delay capability, supported carrier quantity capability, and transmission power capability.

2. The method according to claim 1, wherein: The configuration message further includes a first indication message, wherein the first indication message is used to indicate a correspondence between the initial access resource and the terminal type, and selecting the initial access resource from the multiple initial access resources includes: An initial access resource corresponding to the terminal type is selected according to the corresponding relationship.

3. The method according to claim 1, wherein: The configuration message also includes a second indication message, wherein the second indication message is used to indicate initial access resources of the first category of terminals.

4. The method according to claim 1, wherein: The configuration message also includes a third indication message, wherein the third indication message is used to indicate that the initial access resources of the first category of terminals are used to perform an initial access operation.

5. The method according to claim 1, wherein: The initial access operation includes at least one of the following: Stay, receive system information, monitor paging messages, monitor advance indication information, and perform random access.

6. The method according to claim 5, wherein: In a case where the terminal that selects the initial access resource is the first category terminal, performing an initial access operation based on the selected initial access resource includes: Receive system information and monitor paging messages based on a selected first initial access resource, and perform random access based on a selected second initial access resource; wherein the first initial access resource is the same as the resource for receiving system information and monitoring paging messages for a second type of terminal; and the second initial access resource is different from the resource for random access for the second type of terminal.

7. The method according to claim 5, wherein: In a case where the terminal that selects the initial access resource is the first category terminal, performing an initial access operation based on the selected initial access resource includes: System information is received based on the selected third initial access resource, and random access and paging message monitoring are performed based on the selected fourth initial access resource; wherein the third initial access resource is the same as the resource for the second type of terminal to receive system information; and the fourth initial access resource is different from the resource for the second type of terminal to perform random access and monitor paging messages.

8. The method according to any one of claims 1 to 7, wherein: The initial access resource includes at least one of the following: Synchronization signal block SSB, measurement time configuration SMTC based on the synchronization signal block, search space, control resource set CORESET, uplink bandwidth part BWP, downlink bandwidth part BWP, reference signal RS.

9. The method according to any one of claims 1 to 7, wherein: The configuration message 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; The first SIB is the SIB corresponding to the second type of terminal.

10. The method according to claim 9, wherein: The extended system information includes at least one of the following: System information corresponding to the first type of terminal in a first SIB1, where the first SIB1 is a SIB in the first SIB, and the first SIB is a SIB corresponding to the second type of terminal; System information corresponding to the first type of terminal in SIBx, where x is an integer greater than 1, and the SIBx belongs to the second SIB, and the second SIB is the SIB corresponding to the first type of terminal; The system information corresponding to the first type of terminal in SIBy, y is an integer greater than 1, the SIBy is the SIB in the first SIB, and the first SIB is the SIB corresponding to the second type of terminal.

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

Images