Initial bandwidth part determination method, apparatus, and related device

Abstract

The application discloses an initial bandwidth part determination method, device and related equipment, and belongs to the technical field of communication. The initial bandwidth part determination method comprises the following steps: a terminal acquires first information; the terminal determines a target initial bandwidth part in a first initial bandwidth part and / or a second initial bandwidth part according to the first information, wherein the first initial bandwidth part is configured to the terminal by a network side device; wherein the first information comprises at least one of the following: first configuration information, which is used for configuring the target initial bandwidth part applied by the terminal; and an application rule of the target initial bandwidth part.

Description

Technical Field

[0001] This application belongs to the field of communication technology, and specifically relates to a method, apparatus and related equipment for determining the initial bandwidth portion. Background Technology

[0002] Currently, reduced-capability (RedCap) terminals (such as wearable devices like watches and wristbands) refer to a class of terminal devices with limited capabilities in areas such as the number of receiving antennas, operating bandwidth, and maximum modulation order. With the increasing demand for such terminals, the number of these reduced-capability terminal devices is enormous. Furthermore, to reduce terminal power consumption, a bandwidth portion (BWP) has been introduced into relevant communication protocols, with the initial BWP primarily used during the initial access process.

[0003] In practical applications, when there are a large number of terminal devices accessing the same cell, it may cause scheduling or access congestion problems caused by the network side device scheduling a large number of terminals on the initial BWP or a large number of terminals accessing the network on the initial BWP, resulting in a decrease in system throughput and communication performance. Summary of the Invention

[0004] This application provides a method, apparatus, and related equipment for determining the initial bandwidth portion, which can solve problems such as scheduling or access congestion caused by network-side equipment scheduling a large number of terminals on the initial BWP or a large number of terminals accessing the network on the initial BWP in related technologies.

[0005] Firstly, a method for determining the initial bandwidth portion is provided, including:

[0006] The terminal obtains the first information;

[0007] The terminal determines the target initial bandwidth portion from the first initial bandwidth portion and / or the second initial bandwidth portion based on the first information, wherein the first initial bandwidth portion is configured to the terminal by the network-side device.

[0008] The first information includes at least one of the following:

[0009] First configuration information, the first configuration information is used to configure the target initial bandwidth portion of the terminal application;

[0010] The application rules for the target initial bandwidth portion.

[0011] Secondly, a method for determining the initial bandwidth portion is provided, including:

[0012] The network-side device sends first information to the terminal, the first information being used to instruct the terminal to determine a target initial bandwidth portion in a first initial bandwidth portion and / or a second initial bandwidth portion, the first initial bandwidth portion being configured to the terminal by the network-side device;

[0013] The first information includes at least one of the following:

[0014] First configuration information, the first configuration information is used to configure the target initial bandwidth portion of the terminal application;

[0015] The application rules for the target initial bandwidth portion.

[0016] Thirdly, an initial bandwidth portion determination apparatus is provided, comprising:

[0017] The acquisition module is used to acquire the initial information.

[0018] A determining module is configured to determine a target initial bandwidth portion based on the first information in a first initial bandwidth portion and / or a second initial bandwidth portion, wherein the first initial bandwidth portion is configured to the device by a network-side device.

[0019] The first information includes at least one of the following:

[0020] First configuration information, the first configuration information being used to configure the target initial bandwidth portion applied by the device;

[0021] The application rules for the target initial bandwidth portion.

[0022] Fourthly, an initial bandwidth portion determination apparatus is provided, comprising:

[0023] A sending module is configured to send first information to a terminal, the first information being configured to instruct the terminal to determine a target initial bandwidth portion in a first initial bandwidth portion and / or a second initial bandwidth portion, the first initial bandwidth portion being configured to the terminal by the device;

[0024] The first information includes at least one of the following:

[0025] First configuration information, the first configuration information is used to configure the target initial bandwidth portion of the terminal application;

[0026] The application rules for the target initial bandwidth portion.

[0027] Fifthly, a terminal is provided, the terminal including a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the initial bandwidth portion determination method as described in the first aspect.

[0028] In a sixth aspect, a terminal is provided, including a processor and a communication interface, wherein the communication interface is used to acquire first information, and the processor is used to determine a target initial bandwidth portion in a first initial bandwidth portion and / or a second initial bandwidth portion based on the first information, wherein the first initial bandwidth portion is configured to the terminal by a network-side device;

[0029] The first information includes at least one of the following:

[0030] First configuration information, the first configuration information is used to configure the target initial bandwidth portion of the terminal application;

[0031] The application rules for the target initial bandwidth portion.

[0032] In a seventh aspect, a network-side device is provided, the network-side device including a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the initial bandwidth portion determination method as described in the second aspect.

[0033] Eighthly, a network-side device is provided, including a processor and a communication interface, wherein the communication interface is used to send first information to a terminal, the first information being used to instruct the terminal to determine a target initial bandwidth portion in a first initial bandwidth portion and / or a second initial bandwidth portion, the first initial bandwidth portion being configured to the terminal by the network-side device;

[0034] The first information includes at least one of the following:

[0035] First configuration information, the first configuration information is used to configure the target initial bandwidth portion of the terminal application;

[0036] The application rules for the target initial bandwidth portion.

[0037] A ninth aspect provides a readable storage medium storing a program or instructions that, when executed by a processor, implement the steps of the initial bandwidth portion determination method as described in the first aspect, or implement the steps of the initial bandwidth portion determination method as described in the third aspect.

[0038] In a tenth aspect, a chip is provided, the chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor being configured to run a program or instructions to implement the initial bandwidth portion determination method as described in the first aspect, or to implement the initial bandwidth portion determination method as described in the third aspect.

[0039] Eleventhly, a computer program / program product is provided, the computer program / program product being stored in a non-volatile storage medium, the program / program product being executed by at least one processor to implement the steps of the initial bandwidth portion determination method as described in the first aspect, or to implement the steps of the initial bandwidth portion determination method as described in the third aspect.

[0040] In this embodiment, the terminal determines the target initial bandwidth portion from the first initial bandwidth portion and / or the second initial bandwidth portion based on the acquired first information. This allows each terminal to determine its own target initial bandwidth portion based on the first information, avoiding network congestion caused by a large number of terminals using the same initial bandwidth portion and ensuring communication performance. Attached Figure Description

[0041] Figure 1 This is a block diagram of a wireless communication system applicable to embodiments of this application;

[0042] Figure 2 This is a flowchart of an initial bandwidth determination method provided in an embodiment of this application;

[0043] Figure 3 This is a flowchart of an initial bandwidth determination method provided in another embodiment of this application;

[0044] Figure 4 This is a structural diagram of an initial bandwidth determination device provided in an embodiment of this application;

[0045] Figure 5 This is a structural diagram of an initial bandwidth determination device provided in another embodiment of this application;

[0046] Figure 6 This is a structural diagram of a communication device provided in one embodiment of this application;

[0047] Figure 7 This is a structural diagram of a terminal provided in one embodiment of this application;

[0048] Figure 8 This is a structural diagram of a network-side device provided in an embodiment of this application. Detailed Implementation

[0049] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0050] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0051] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, 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 this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and the term NR is used in most of the following description; however, these technologies can also be applied to applications other than NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0052] Figure 1This diagram illustrates a block diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can also be referred to as a terminal device or user equipment (UE). The terminal 11 can be a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), wearable device, vehicle-mounted device (VUE), pedestrian terminal (PUE), etc. Wearable devices include smartwatches, wristbands, headphones, glasses, etc. It should be noted that this application does not limit the specific type of terminal 11. Network-side device 12 can be a base station or a core network. The base station can be referred to as a node B, evolved node B, access point, base transceiver station (BTS), radio base station, radio transceiver, basic service set (BSS), extended service set (ESS), B node, evolved B node (eNB), home B node, home evolved B node, WLAN access point, WiFi node, transmitting and receiving point (TRP), or any other suitable term in the field, as long as the same technical effect is achieved. The base station is not limited to specific technical terms. It should be noted that in this application embodiment, only the base station in the NR system is used as an example, but the specific type of base station is not limited.

[0053] The method for determining the initial bandwidth provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0054] Please refer to Figure 2 , Figure 2 This is a flowchart of an initial bandwidth determination method provided in an embodiment of this application, the method being applied to a terminal. Figure 2 As shown, the method includes the following steps:

[0055] Step 201: The terminal obtains the first information.

[0056] The first information includes at least one of the following:

[0057] First configuration information, the first configuration information is used to configure the target initial bandwidth portion of the terminal application;

[0058] The application rules for the target initial bandwidth portion.

[0059] In some embodiments, the terminal obtains the first information through a protocol agreement and / or by transmission from a network-side device. For example, if the first information includes first configuration information, the network-side device sends the first configuration information through a System Information Block (SIB), and the terminal obtains the first configuration information; if the first information includes application rules for the target initial bandwidth portion, the protocol agrees on the application rules for the target initial bandwidth portion, and the terminal obtains the application rules for the target initial bandwidth portion according to the agreement; the first information may also include the first configuration information and the application rules for the target initial bandwidth portion.

[0060] Step 202: The terminal determines the target initial bandwidth portion from the first initial bandwidth portion and / or the second initial bandwidth portion based on the first information. The first initial bandwidth portion is configured to the terminal by the network-side device.

[0061] It should be noted that the second initial bandwidth portion may be configured by the network-side device for the terminal and / or other terminals. Here, "configured for the terminal and / or other terminals" means for use with the terminal and / or other terminals. "Other terminals" refers to terminals other than the terminal in question.

[0062] Optionally, the first initial bandwidth portion can be at least one. For example, if the network-side device configures two first initial bandwidth portions for the terminal, the terminal can determine the target initial bandwidth portion to be applied from these two first initial bandwidth portions based on the first information. Alternatively, the network-side device can configure only one first initial bandwidth portion for the terminal, and the terminal can determine the target initial bandwidth portion from the first initial bandwidth portion and the second initial bandwidth portion based on the first information.

[0063] In this embodiment, the terminal determines the target initial bandwidth portion from the first initial bandwidth portion and / or the second initial bandwidth portion based on the acquired first information. This allows each terminal to determine its own target initial bandwidth portion based on the first information, avoiding network congestion caused by a large number of terminals using the same initial bandwidth portion. This provides flexibility for network scheduling and initial terminal access, ensuring communication performance.

[0064] In this application embodiment, the terminal can be a specific terminal or a non-specific terminal; the specific terminal can refer to a terminal with specific capabilities or a terminal of a specific type. In some embodiments, the terminal refers to a terminal with reduced capability (RedCap), such as a watch, a bracelet, or other device; in another embodiment, the terminal can be a non-RedCap terminal, such as a mobile phone or other device.

[0065] For a better understanding, please refer to Table 1 below for the differences between terminals with reduced capabilities and those without.

[0066] Table 1. Comparison of Terminal Capabilities between Non-RedCap and RedCap Terminals

[0067]

[0068] As shown in Table 1, there are significant differences in terminal capabilities, such as the number of receiving antennas and maximum bandwidth, between terminals with reduced capabilities and those without. Different terminal capabilities allow different initial bandwidth portions to be used, thus avoiding congestion problems caused by all terminals using the same initial bandwidth (BWP).

[0069] In this embodiment, the terminal can refer to a terminal with reduced capabilities or a terminal without reduced capabilities. For example, if the terminal is a terminal with reduced capabilities, the first initial bandwidth portion is the initial bandwidth portion configured by the network-side device for the terminal with reduced capabilities, while the second initial bandwidth portion is the initial bandwidth portion configured by the network-side device for a terminal without reduced capabilities (i.e., a normal terminal or a traditional terminal); or, for another example, the first initial bandwidth portion can be the initial bandwidth portion configured by the network-side device for a terminal without reduced capabilities, while the second initial bandwidth portion is the initial bandwidth portion configured by the network-side device for a terminal with reduced capabilities.

[0070] Optionally, taking a terminal with reduced capabilities as an example where the first initial bandwidth portion is additionally configured for the terminal with reduced capabilities by the network-side device, the terminal with reduced capabilities determines the target initial bandwidth portion based on the first information from the first initial bandwidth portion and / or the second initial bandwidth portion. That is, even when the network-side device additionally configures the first initial bandwidth portion for the terminal with reduced capabilities, the terminal with reduced capabilities may not necessarily use the first initial bandwidth portion as the target initial bandwidth portion. For example, if the second initial bandwidth portion configured for a non-reduced capability terminal is less than or equal to a preset value, the terminal with reduced capabilities can still determine the second initial bandwidth portion as the target initial bandwidth portion.

[0071] Understandably, as listed in Table 1, the maximum bandwidth capability of a terminal with reduced capability differs from that of a terminal without reduced capability within the same frequency band. For example, in Frequency Range 1 (FR1), the maximum bandwidth capability of a terminal with reduced capability is 20MHz, while that of a terminal without reduced capability is 100MHz; in FR2, the maximum bandwidth capability of a terminal with reduced capability is 100MHz, while that of a terminal without reduced capability is 200MHz.

[0072] In some embodiments, if the bandwidth of the second initial bandwidth portion is less than or equal to 20MHz, the terminal with reduced capability can still apply the second initial bandwidth portion. In this case, the network-side device can also configure an additional first initial bandwidth portion for the terminal with reduced capability, and the network-side device configures the target initial bandwidth portion applied by the terminal with reduced capability as the second initial bandwidth portion through the first configuration information. The first configuration information can be carried in a system information block (SIB), such as SIB1. Optionally, if the network determines that the number of terminals currently applying the second initial bandwidth portion is greater than a preset number, the network-side device can send a system message change instruction to notify the terminal to receive the changed system message and instruct (or configure) the terminal to apply the additionally configured first initial bandwidth portion in the changed system message, that is, instruct the terminal to determine the first initial bandwidth portion as the target initial bandwidth portion. In this way, the target initial bandwidth portion applied by the terminal subsequently joining the network becomes the first initial bandwidth portion, which can avoid the network congestion problem caused by a large number of terminals using the second initial bandwidth portion for camping or access, thereby improving throughput and communication performance.

[0073] Optionally, step 202 may include:

[0074] If the bandwidth of the second initial bandwidth portion is greater than a preset value, the terminal determines the target initial bandwidth portion in the first initial bandwidth portion based on the first information.

[0075] For example, if the bandwidth of the second initial bandwidth portion is greater than 20MHz, meaning the terminal with reduced capabilities cannot utilize the second initial bandwidth portion, then the terminal with reduced capabilities can only determine the target initial bandwidth portion from the first initial bandwidth portion based on the first information. In this case, the number of first initial bandwidth portions configured for the terminal with reduced capabilities by the network-side equipment can be greater than one, and the terminal with reduced capabilities can determine the target initial bandwidth portion from multiple first initial bandwidth portions based on the first information. For example, the first information can be an application rule including the target initial bandwidth portion, and the terminal with reduced capabilities can determine the target initial bandwidth portion from multiple first initial bandwidth portions based on its own terminal capabilities, such as determining the target initial bandwidth portion based on the number of receiving antennas of the terminal with reduced capabilities. Of course, the first information can also be in other possible forms, and correspondingly, the terminal with reduced capabilities can also determine the target initial bandwidth portion through other methods, which will be described below through specific implementation methods.

[0076] Optionally, when the first information includes application rules for the target initial bandwidth portion, the terminal determines the target initial bandwidth portion in the first initial bandwidth portion and / or the second initial bandwidth portion according to the application rules for the target initial bandwidth portion, including at least one of the following:

[0077] The terminal determines the target initial bandwidth portion based on its own terminal capabilities, wherein different terminal capabilities result in different target initial bandwidth portions.

[0078] The terminal determines the target initial bandwidth portion based on its own terminal identifier.

[0079] The terminal capabilities may refer to the characteristics inherent in the terminal itself, such as the maximum number of receiving antennas or the frequency division duplex mode supported by the terminal. Optionally, the terminal capabilities include at least one of the following:

[0080] The number of receiving antennas;

[0081] Supported frequency division duplex modes, wherein the duplex mode includes any one of full-duplex, mixed-duplex and half-duplex;

[0082] Whether the first measured value is equal to or higher than the first threshold;

[0083] Does it support Paging Early Indication (PEI)?

[0084] Does it support the Small Data Transmission (SDT) function in the Radio Resource Control (RRC) idle or inactive state?

[0085] In some embodiments, the terminal is a terminal with reduced capabilities. The first initial bandwidth portion is the initial bandwidth portion configured by the network-side device for the terminal with reduced capabilities, and the second initial bandwidth portion is the initial bandwidth portion configured by the network-side device for the terminal without reduced capabilities. The bandwidth of the second initial bandwidth portion is greater than 20MHz, that is, the terminal with reduced capabilities cannot apply the second initial bandwidth portion at this time. Based on this condition, the following embodiments will be used to illustrate in detail how to determine the target initial bandwidth portion based on different terminal capabilities.

[0086] Based on the above conditions, some implementation examples are as follows:

[0087] The network-side device is configured with two initial bandwidth portions, such as initial BWP 1 and initial BWP 2. The first information includes application rules for the target initial bandwidth portion, which are determined by the terminal based on the number of its receiving antennas. For example, the application rules for the target initial bandwidth portion may be defined by a protocol: a terminal with a single receiving antenna will determine initial BWP 1 as the target initial bandwidth portion, and a terminal with two receiving antennas will determine initial BWP 2 as the target initial bandwidth portion.

[0088] Based on the above conditions, some implementation examples are as follows:

[0089] The first information includes the application rules for the target initial bandwidth portion. These application rules include the determination of the target initial bandwidth portion by the terminal with reduced capability based on its supported frequency division duplex mode. The number of first initial bandwidths configured by the network-side equipment is three, such as initial BWP 1, initial BWP 2, and initial BWP 3. Specifically, the application rules for the target initial bandwidth portion are specified through network configuration as follows: terminals with reduced capability supporting full-duplex (FD) mode will determine initial BWP 1 as the target initial bandwidth portion, terminals with reduced capability supporting half-duplex (HD) mode will determine initial BWP 2 as the target initial bandwidth portion, and terminals with reduced capability supporting mixed-duplex mode will determine initial BWP 3 as the target initial bandwidth portion.

[0090] Based on the above conditions, some implementation examples are as follows:

[0091] The terminal with reduced capability determines the target initial bandwidth portion based on whether a measured first value is equal to or higher than a first threshold. The first measured value includes, but is not limited to, measurements such as Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), and Signal-to-noise and interference ratio (SINR). For example, for a terminal with reduced capability where the first measured value is equal to or higher than the first threshold, initial BWP 1 may be determined as the target initial bandwidth portion; for a terminal with reduced capability where the first measured value is less than the first threshold, initial BWP 2 may be determined as the target initial bandwidth portion.

[0092] Based on the above conditions, some implementation examples are as follows:

[0093] Terminals with reduced capabilities determine the target initial bandwidth portion based on whether they support PEI. For example, terminals with reduced capabilities that support PEI will determine initial BWP 1 as the target initial bandwidth portion, while terminals without reduced capabilities that do not support PEI will determine initial BWP 2 as the target initial bandwidth portion.

[0094] Based on the above conditions, some implementation examples are as follows:

[0095] Terminals with reduced capabilities determine the target initial bandwidth portion based on whether they support the SDT function in the RRC idle or inactive state. For example, a terminal with reduced capabilities that supports the SDT function in the RRC idle or inactive state will determine initialBWP 1 as the target initial bandwidth portion, while a terminal with reduced capabilities that does not support the SDT function in the RRC idle or inactive state will determine initialBWP 2 as the target initial bandwidth portion.

[0096] In this embodiment, when the first information includes application rules for the target initial bandwidth portion, the terminal can determine the target initial bandwidth portion based on its own terminal capabilities. This allows terminals with different capabilities to apply different target initial bandwidth portions, thus allocating traffic to different initial bandwidth portions from the perspective of terminal capabilities. This avoids network congestion caused by a large number of terminals applying the same initial bandwidth portion, ensuring communication performance. Furthermore, when the first information includes application rules for the target initial bandwidth portion, the terminal can also determine the target initial bandwidth portion based on its own terminal identifier.

[0097] Optionally, the terminal determines the target initial bandwidth portion based on its own terminal identifier, including:

[0098] The terminal performs a modulo-N operation based on its own terminal identifier to obtain a remainder value, and determines the target initial bandwidth portion based on the remainder value, wherein N is the total number of initial bandwidth portions that the terminal can apply.

[0099] For example, the network-side device is configured with three initial bandwidth portions, namely initial BWP 1, initial BWP 2 and initial BWP 3. That is, the total number N of initial bandwidth portions that the terminal can use is 3. Assuming that the terminal identifier is 4, and the remainder obtained by performing a modulo N operation on the terminal identifier is 1, then the terminal will determine initial BWP 1 as the target initial bandwidth portion.

[0100] Understandably, different terminals have different terminal identifiers. This allows us to perform a modulo-N operation on the terminal identifiers to distribute different terminals to different initial bandwidth portions, thus avoiding network congestion caused by a large number of terminals using the same initial bandwidth portion and ensuring communication performance.

[0101] In this embodiment, when the first information includes the application rules for the target initial bandwidth portion, the terminal can determine the target initial bandwidth portion based on its own terminal capabilities and by performing a modulo-N operation on the terminal identifier. For example, assuming that both the first terminal and the second terminal are terminals with reduced capability of receiving antennas, the terminal identifier corresponding to the first terminal is 4 and the terminal identifier corresponding to the second terminal is 5, then the target initial bandwidth portion is determined by performing a modulo-N operation on the terminal identifiers. The target initial bandwidth portions determined by the first terminal and the second terminal are also different. This can more effectively avoid network congestion caused by a large number of terminals applying the same initial bandwidth portion, and further ensure communication performance. Of course, the terminal capabilities can also be other possible forms listed in the above embodiments, which will not be elaborated here.

[0102] In this embodiment of the application, step 202 may further include:

[0103] The terminal determines, based on the first information, the target initial bandwidth portion applicable to a specific situation in a first initial bandwidth portion and / or a second initial bandwidth portion, wherein the specific situation includes at least one of the following:

[0104] The terminal performs initial access;

[0105] After the RRC connection is released;

[0106] The terminal is in an RRC inactive state or an idle state;

[0107] The bandwidth portion inactive timer (bwp-inactivitytimer) expired, and the terminal was not configured with a default bandwidth portion;

[0108] The inactive timer for the bandwidth portion expires, and the terminal is configured with the default bandwidth portion as the initial bandwidth portion;

[0109] The terminal needs to initiate random access, and there is no random access channel occupancy (RO) on the active bandwidth portion.

[0110] Wherein, the first information may include first configuration information, which is used to configure the target initial bandwidth portion applied by the terminal under the above-mentioned specific circumstances. The terminal may determine the target initial bandwidth portion applied to the specific circumstances based on the first configuration information; or, the first information may include application rules for the first configuration information and the target initial bandwidth portion. The terminal may determine the target initial bandwidth portion applied to the specific circumstances based on the first configuration information and the application rules for the target initial bandwidth portion, etc.

[0111] To better understand, the following will use the terminal as an example of a terminal with reduced capabilities, the first initial bandwidth portion being the initial bandwidth portion configured by the network-side device for the terminal with reduced capabilities, and the second initial bandwidth portion being the initial bandwidth portion configured by the network-side device for a terminal without reduced capabilities, to illustrate the application of the target initial bandwidth portion in the above specific situations.

[0112] In some implementations, the specific situation is the terminal performing an initial access process; if the bandwidth of the second initial bandwidth portion is less than or equal to a preset value, for example, less than or equal to 20MHz, the first information may include first configuration information, which may be used to configure the target initial bandwidth portion applied by the terminal with reduced capabilities when performing initial access as the second initial bandwidth portion.

[0113] Alternatively, if the bandwidth of the second initial bandwidth portion is greater than a preset value, the terminal with reduced capability can also determine the target initial bandwidth portion of the terminal with reduced capability based on the first configuration information and the application rules of the target initial bandwidth portion. For example, the network-side device may configure two first initial bandwidth portions, such as initial BWP 1 and initial BWP 2; based on the first configuration information and the application rules of the target initial bandwidth portion, for example, according to the number of receiving antennas of the terminal with reduced capability, a terminal with reduced capability and one receiving antenna will determine initial BWP 1 as the target initial bandwidth portion, and a terminal with reduced capability and two receiving antennas will determine initial BWP 2 as the target initial bandwidth portion.

[0114] In other implementations, the specific situation may refer to the network-side device configuring the target initial bandwidth portion applied by the terminal in this situation through first configuration information after the RRC connection is released. For example, if the bandwidth of the second initial bandwidth portion is greater than a preset value, the first configuration information is used to configure the target initial bandwidth portion applied by a terminal with a reduced capability of one receiving antenna as initial BWP 1 in the above situation, and the target initial bandwidth portion applied by a terminal with a reduced capability of two receiving antennas as initial BWP 2 in the above situation. Then, the terminal with reduced capability determines the target initial bandwidth portion applied in the above situation based on the first configuration information and the number of receiving antennas it has.

[0115] Alternatively, if the bandwidth of the second initial bandwidth portion is less than or equal to a preset value, the first configuration information may be used to indicate that the target initial bandwidth portion applied to the terminal with reduced capability (regardless of the number of receiving antennas of the terminal with reduced capability) in the above case is the second initial bandwidth portion.

[0116] It should be noted that if the terminal with reduced capabilities receives an explicit instruction from the network-side device regarding the target initial bandwidth portion to be applied after the RRC connection is released (e.g., configured through the first configuration information), the terminal with reduced capabilities determines the target initial bandwidth portion according to the instruction. If the network-side device does not provide an explicit instruction, the terminal with reduced capabilities may determine the default initial bandwidth portion for that specific situation according to network configuration or protocol agreement.

[0117] In other embodiments, the specific situation may refer to the terminal being in an RRC inactive state or an idle state, and the network-side device may configure the target initial bandwidth portion applied by the terminal in this situation through first configuration information. For example, the first configuration information may configure the target initial bandwidth portion applied by a terminal with a reduced capability of one receiving antenna as initial BWP 1, and the target initial bandwidth portion applied by a terminal with a reduced capability of two receiving antennas as initial BWP 2.

[0118] In other implementations, the specific situation may refer to the bwp-inactivitytimer expiring and the terminal not being configured with a default bandwidth portion, which may also be referred to as the default bandwidth portion. The first configuration information may be configuring the target initial bandwidth portion of a terminal application with reduced capability and one receiving antenna as initial BWP 1, and the target initial bandwidth portion of a terminal application with reduced capability and two receiving antennas as initial BWP 2. Then, when the bwp-inactivitytimer expires and the terminal with reduced capability is not configured with a default bandwidth portion, the terminal with reduced capability determines the target initial bandwidth portion of the application based on the above first configuration information and the number of receiving antennas it has.

[0119] In other implementations, the specific situation may refer to the expiration of the bwp-inactivitytimer and the terminal being configured with the default bandwidth portion as the initial bandwidth portion. For example, the application rule for the target initial bandwidth portion may be to configure the target initial bandwidth portion of a terminal with reduced capability of one receiving antenna as initial BWP1, and the target initial bandwidth portion of a terminal with reduced capability of two receiving antennas as initial BWP2. The terminal with reduced capability then determines the target initial bandwidth portion to be applied in the above situation according to the application rule for the target initial bandwidth portion.

[0120] In some implementations, the specific situation may refer to a situation where the degraded terminal needs to initiate random access, and there is no RO (Redirect Access) on the bandwidth portion activated by the terminal. In this case, the degraded terminal needs to switch to the target initial bandwidth portion for random access. The application rule for the target initial bandwidth portion may be configured as initial BWP 1 for a degraded terminal with one receiving antenna, and initial BWP 2 for a degraded terminal with two receiving antennas. The degraded terminal then determines the target initial bandwidth portion to apply in the above situation according to the application rule of the target initial bandwidth portion.

[0121] It should be noted that in the above embodiments, the terminal capability of the terminal with reduced capability may also include other situations, such as the frequency division duplex mode supported by the terminal with reduced capability, whether the terminal with reduced capability supports PEI, whether the first measurement value measured by the terminal with reduced capability is equal to or higher than a first threshold, etc., and then the terminal with reduced capability determines the target initial bandwidth portion in the above specific situation (or applied to the specific situation) based on the first information. This application embodiment will not elaborate on these aspects one by one.

[0122] Alternatively, the first information may be either an application rule or first configuration information that only includes the target initial bandwidth portion. The terminal with reduced capability may determine the target initial bandwidth portion applied in the specific situation described above based on either the application rule or the first configuration information. For example, when releasing the RRC connection and entering the RRC inactive or idle state, a terminal with reduced capability using one receiving antenna may determine initial BWP 1 as the target initial bandwidth portion, while a terminal with reduced capability using two receiving antennas may determine initial BWP 2 as the target initial bandwidth portion. Other specific situations may also exist, which will not be listed here.

[0123] Optionally, assuming the second initial bandwidth portion is the initial bandwidth portion configured for a terminal without reduced capabilities, if the terminal with reduced capabilities cannot apply the second initial bandwidth portion, for example, if the bandwidth of the second initial bandwidth portion is greater than 20MHz, then the number of first initial bandwidth portions configured by the network-side device for the terminal with reduced capabilities is at least two. The terminal with reduced capabilities may determine the target initial bandwidth portion to be applied based on its own terminal capabilities or the first configuration information from at least two first initial bandwidth portions.

[0124] Optionally, after step 202, that is, after the terminal determines the target initial bandwidth portion, the method further includes:

[0125] Under certain conditions, switch to the target initial bandwidth portion; wherein, the specific conditions include at least one of the following:

[0126] The activated bandwidth portion is not the target initial bandwidth portion;

[0127] The terminal releases the RRC connection;

[0128] The terminal enters the RRC inactive state or idle state;

[0129] The inactive timer for the bandwidth portion expired, and the terminal was not configured with a default bandwidth portion;

[0130] The inactive timer for the bandwidth portion expires, and the terminal is configured with the default bandwidth portion as the initial bandwidth portion;

[0131] The terminal needs to initiate random access, and there is no RO on the activated bandwidth portion.

[0132] In this embodiment of the application, after the terminal determines the target initial bandwidth portion in the first initial bandwidth portion and / or the second initial bandwidth portion based on the first information, if the above-mentioned specific conditions are met, the terminal switches to the target initial bandwidth portion.

[0133] For example, in some embodiments, after determining the target initial bandwidth portion, if the terminal's currently activated bandwidth portion is not the target initial bandwidth portion, the terminal switches to the target initial bandwidth portion.

[0134] In other embodiments, for example, if the terminal releases the RRC connection, the terminal may switch to the determined target initial bandwidth portion. Alternatively, if the terminal enters an RRC inactive or idle state, the terminal may switch to the target initial bandwidth portion.

[0135] In other embodiments, for example, if the bandwidth portion inactivity timer (bwp-inactivitytimer) expires and the terminal is not configured with a default bandwidth portion, the terminal switches to the determined target initial bandwidth portion; or, if the bandwidth portion inactivity timer (bwp-inactivitytimer) expires and the terminal is configured with the default bandwidth portion as the initial bandwidth portion, the terminal switches to the target initial bandwidth portion. Additionally, when the terminal needs to initiate random access and there is no RO on the terminal's currently active bandwidth portion, the terminal switches to the target initial bandwidth portion.

[0136] Thus, when the terminal determines the target initial bandwidth portion and the terminal is under the aforementioned specific conditions, the terminal can switch to the target initial bandwidth portion to ensure communication performance.

[0137] The initial bandwidth portion mentioned in the embodiments of this application includes at least one of an initial uplink bandwidth portion and an initial downlink bandwidth portion. For example, the first initial bandwidth portion includes a first initial uplink (UL) bandwidth portion and a first initial downlink (DL) bandwidth portion.

[0138] It should be noted that, in the embodiments of this application, taking a terminal with reduced capabilities as an example, under a frequency division duplex (FDD) system, the initial uplink bandwidth portion (initial UL BWP) and initial downlink bandwidth portion (initial DL BWP) of the terminal with reduced capabilities may not be used in pairs. For example, the terminal with reduced capabilities may activate initial UL BWP 1 and initial DL BWP 2. Under a time division duplex (TDD) system, the initial uplink bandwidth portion and initial downlink bandwidth portion of the terminal with reduced capabilities must be used in pairs. For example, if the terminal with reduced capabilities is currently using initial UL BWP 1, then the initial downlink bandwidth portion must use initial DL BWP 1, and the initial bandwidth portions of the uplink and downlink must maintain the same center frequency.

[0139] The technical solution provided in this application embodiment allows the terminal to determine its target initial bandwidth portion based on the first configuration information and / or the application rules of the target initial bandwidth portion in the first initial bandwidth portion and / or the second initial bandwidth portion. In this way, each terminal can determine its own target initial bandwidth portion based on the first information, avoiding network congestion caused by a large number of terminals applying the same initial bandwidth portion and ensuring communication performance.

[0140] Please refer to Figure 3 , Figure 3 This is a flowchart of another method for determining the initial bandwidth portion according to an embodiment of this application, the method being applied to a network-side device. Figure 3 As shown, the method includes the following steps:

[0141] Step 301: The network-side device sends first information to the terminal. The first information is used to instruct the terminal to determine a target initial bandwidth portion in the first initial bandwidth portion and / or the second initial bandwidth portion. The first initial bandwidth portion is configured to the terminal by the network-side device.

[0142] The first information includes at least one of the following:

[0143] First configuration information, the first configuration information is used to configure the target initial bandwidth portion of the terminal application;

[0144] The application rules for the target initial bandwidth portion.

[0145] In this embodiment of the application, the network-side device can send first information to the terminal. The first information is used to instruct the terminal to determine the target initial bandwidth portion in the first initial bandwidth portion and / or the second initial bandwidth portion, so that each terminal can determine its own target initial bandwidth portion based on the first information, thereby avoiding network congestion caused by a large number of terminals applying the same initial bandwidth portion and ensuring communication performance.

[0146] The terminal determines the specific implementation method of the target initial bandwidth portion based on the first configuration information and / or the application rules of the target initial bandwidth portion, which can be referred to the above. Figure 2 The specific descriptions of the method embodiments are not repeated here.

[0147] Optionally, if the bandwidth of the second initial bandwidth portion is greater than a preset value, the first information is used to instruct the terminal to determine a target initial bandwidth portion in the first initial bandwidth portion.

[0148] Optionally, the first information is used to instruct the terminal to determine, within a first initial bandwidth portion and / or a second initial bandwidth portion, the target initial bandwidth portion applicable to a specific situation, wherein the specific situation includes at least one of the following:

[0149] The terminal performs initial access;

[0150] After the Radio Resource Control (RRC) connection is released;

[0151] The terminal is in an RRC inactive state or an idle state;

[0152] The inactive timer for the bandwidth portion expired, and the terminal was not configured with a default bandwidth portion;

[0153] The inactive timer for the bandwidth portion expires, and the terminal is configured with the default bandwidth portion as the initial bandwidth portion;

[0154] The terminal needs to initiate random access, and there is no random access channel opportunity (RO) on the active bandwidth portion.

[0155] Optionally, when the first information includes application rules for the target initial bandwidth portion, the first information is used to indicate at least one of the following:

[0156] The terminal determines the target initial bandwidth portion based on its own terminal capabilities, wherein the target initial bandwidth portion determined by different terminal capabilities is different.

[0157] The terminal determines the target initial bandwidth portion based on its own terminal identifier.

[0158] Optionally, the terminal capabilities include at least one of the following:

[0159] The number of receiving antennas;

[0160] Supported frequency division duplex modes, wherein the duplex mode includes any one of full-duplex, mixed-duplex and half-duplex;

[0161] Whether the first measured value is equal to or higher than the first threshold;

[0162] Does it support advance paging indication (PEI)?

[0163] Does it support the Small Data Transfer (SDT) function in RRC idle or inactive states?

[0164] Optionally, the first information is used to instruct the terminal to perform a modulo-N operation based on its own terminal identifier to obtain a remainder value, and to determine the target initial bandwidth portion based on the remainder value, wherein N is the total number of initial bandwidth portions that the terminal can apply.

[0165] The method provided in this application embodiment is executed by a network-side device, and is similar to the one described above. Figure 2 Corresponding to the initial bandwidth determination method executed on the terminal side, the specific implementation process of the method in this embodiment can be referred to the above. Figure 2 The specific descriptions of the method embodiments are omitted here to avoid repetition.

[0166] In this embodiment, the network-side device can send first information to the terminal, and the terminal can determine the target initial bandwidth portion based on the first information. This allows each terminal to determine its own target initial bandwidth portion based on the first information, thereby avoiding network congestion caused by a large number of terminals using the same initial bandwidth portion and ensuring communication performance.

[0167] It should be noted that the initial bandwidth determination method provided in this application embodiment can be executed by an initial bandwidth determination device, or by a control module within that initial bandwidth determination device for executing the initial bandwidth determination method. This application embodiment uses the execution of the initial bandwidth determination method by an initial bandwidth determination device as an example to illustrate the initial bandwidth determination device provided in this application embodiment.

[0168] Please refer to Figure 4 , Figure 4 This is a structural diagram of an initial bandwidth determination device provided in an embodiment of this application. Figure 4 As shown, the initial bandwidth determination device 400 includes:

[0169] Module 401 is used to acquire the first information;

[0170] The determining module 402 is configured to determine a target initial bandwidth portion in a first initial bandwidth portion and / or a second initial bandwidth portion based on the first information, wherein the first initial bandwidth portion is configured to the device by a network-side device.

[0171] The first information includes at least one of the following:

[0172] First configuration information, the first configuration information being used to configure the target initial bandwidth portion applied by the device;

[0173] The application rules for the target initial bandwidth portion.

[0174] Optionally, the determining module 402 is further configured to:

[0175] If the bandwidth of the second initial bandwidth portion is greater than a preset value, a target initial bandwidth portion is determined in the first initial bandwidth portion based on the first information.

[0176] Optionally, the determining module 402 is further configured to:

[0177] Based on the first information, a target initial bandwidth portion applicable to a specific situation is determined in a first initial bandwidth portion and / or a second initial bandwidth portion, wherein the specific situation includes at least one of the following:

[0178] The device undergoes initial connection;

[0179] After the Radio Resource Control (RRC) connection is released;

[0180] The device is in an RRC inactive state or an idle state;

[0181] The inactive timer for the bandwidth portion expired, and the device was not configured with a default bandwidth portion;

[0182] The inactive timer for the bandwidth portion expires, and the device is configured with the default bandwidth portion as the initial bandwidth portion;

[0183] The device needs to initiate random access, and there is no random access channel opportunity (RO) on the active bandwidth portion.

[0184] Optionally, the device further includes a switching module, the switching module being used for:

[0185] Under certain conditions, switch to the target initial bandwidth portion; wherein, the specific conditions include at least one of the following:

[0186] The activated bandwidth portion is not the target initial bandwidth portion;

[0187] The device releases the RRC connection;

[0188] The device enters the RRC inactive state or idle state;

[0189] The inactive timer for the bandwidth portion expired, and the device was not configured with a default bandwidth portion;

[0190] The inactive timer for the bandwidth portion expires, and the device is configured with the default bandwidth portion as the initial bandwidth portion;

[0191] The device needs to initiate random access, and there is no RO on the active bandwidth portion.

[0192] Optionally, if the first information includes application rules for the target initial bandwidth portion, the determining module 402 is further configured to perform at least one of the following:

[0193] The target initial bandwidth portion is determined based on the terminal's own capabilities, wherein different terminal capabilities result in different target initial bandwidth portions;

[0194] The initial bandwidth portion of the target is determined based on its own terminal identifier.

[0195] Optionally, the terminal capabilities include at least one of the following:

[0196] The number of receiving antennas;

[0197] Supported frequency division duplex modes, wherein the duplex mode includes any one of full-duplex, mixed-duplex and half-duplex;

[0198] Whether the first measured value is equal to or higher than the first threshold;

[0199] Does it support advance paging indication (PEI)?

[0200] Does it support the Small Data Transfer (SDT) function in RRC idle or inactive states?

[0201] Optionally, the determining module 402 is further configured to: perform a modulo-N operation based on its own terminal identifier to obtain a remainder value, and determine a target initial bandwidth portion based on the remainder value, wherein N is the total number of initial bandwidth portions that the device can apply.

[0202] In this embodiment, the device determines the target initial bandwidth portion of the application from the first initial bandwidth portion and / or the second initial bandwidth portion based on the acquired first information. In this way, each device can determine its own target initial bandwidth portion based on the first information, avoiding network congestion caused by a large number of devices applying the same initial bandwidth portion and ensuring communication performance.

[0203] The initial bandwidth determination device 400 in this embodiment can be a device, a device with an operating system, or an electronic device, or it can be a component, integrated circuit, or chip in a terminal. This device or electronic device can be a mobile terminal or a non-mobile terminal. For example, a mobile terminal can include, but is not limited to, the types of terminals 11 listed above, while a non-mobile terminal can be a server, network attached storage (NAS), personal computer (PC), television (TV), ATM, or self-service machine, etc. This embodiment does not specifically limit the type of terminal.

[0204] The initial bandwidth determination device 400 provided in this application embodiment can achieve... Figure 2 The various processes implemented on the terminal in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0205] Please refer to Figure 5 , Figure 5 This is a structural diagram of another initial bandwidth determination device provided in an embodiment of this application. Figure 5 As shown, the initial bandwidth determination device 500 includes:

[0206] The sending module 501 is used to send first information to the terminal, the first information being used to instruct the terminal to determine a target initial bandwidth portion in a first initial bandwidth portion and / or a second initial bandwidth portion, the first initial bandwidth portion being configured to the terminal by the device;

[0207] The first information includes at least one of the following:

[0208] First configuration information, the first configuration information is used to configure the target initial bandwidth portion of the terminal application;

[0209] The application rules for the target initial bandwidth portion.

[0210] Optionally, if the bandwidth of the second initial bandwidth portion is greater than a preset value, the first information is used to instruct the terminal to determine a target initial bandwidth portion in the first initial bandwidth portion.

[0211] Optionally, the first information is used to instruct the terminal to determine, within a first initial bandwidth portion and / or a second initial bandwidth portion, the target initial bandwidth portion applicable to a specific situation, wherein the specific situation includes at least one of the following:

[0212] The terminal performs initial access;

[0213] After the terminal radio resource control (RRC) connection is released;

[0214] The inactive timer for the bandwidth portion expired, and the terminal was not configured with a default bandwidth portion;

[0215] The inactive timer for the bandwidth portion expires, and the terminal is configured with the default bandwidth portion as the initial bandwidth portion;

[0216] The terminal needs to initiate random access, and there is no random access channel opportunity (RO) on the active bandwidth portion.

[0217] Optionally, when the first information includes application rules for the target initial bandwidth portion, the first information is used to indicate at least one of the following:

[0218] The terminal determines the target initial bandwidth portion based on its own terminal capabilities, wherein different terminal capabilities result in different target initial bandwidth portions.

[0219] The terminal determines the target initial bandwidth portion based on its own terminal identifier.

[0220] Optionally, the terminal capabilities include at least one of the following:

[0221] The number of receiving antennas;

[0222] Supported frequency division duplex modes, wherein the duplex mode includes any one of full-duplex, mixed-duplex and half-duplex;

[0223] Whether the first measured value is equal to or higher than the first threshold;

[0224] Does it support advance paging indication (PEI)?

[0225] Does it support the Small Data Transfer (SDT) function in RRC idle or inactive states?

[0226] Optionally, the first information is used to instruct the terminal to perform a modulo-N operation based on its own terminal identifier to obtain a remainder value, and to determine the target initial bandwidth portion based on the remainder value, wherein N is the total number of initial bandwidth portions that the terminal can apply.

[0227] In this embodiment of the application, the device can send first information to the terminal. The first information is used to instruct the terminal to determine the target initial bandwidth portion in the first initial bandwidth portion and / or the second initial bandwidth portion, so that each terminal can determine its own target initial bandwidth portion based on the first information, thereby avoiding network congestion caused by a large number of terminals applying the same initial bandwidth portion and ensuring communication performance.

[0228] The initial bandwidth determination device 500 provided in this application embodiment can achieve... Figure 3 The various processes implemented by the network-side device in the method embodiment achieve the same technical effect, and will not be described again here to avoid repetition.

[0229] Optional, such as Figure 6 As shown, this application embodiment also provides a communication device 600, including a processor 601, a memory 602, and a program or instructions stored in the memory 602 and executable on the processor 601. For example, when the communication device 600 is a terminal, the program or instructions executed by the processor 601 implement the above-mentioned... Figure 2 The various processes described in the method embodiments can achieve the same technical effect. When the communication device 600 is a network-side device, the program or instruction executed by the processor 601 implements the above-described... Figure 3 The various processes in the method embodiments described herein can achieve the same technical effect, and will not be repeated here to avoid repetition.

[0230] This application embodiment also provides a terminal, including a processor and a communication interface. The communication interface is used to acquire first information, and the processor is used to determine a target initial bandwidth portion based on the first information in a first initial bandwidth portion and / or a second initial bandwidth portion. This terminal embodiment corresponds to the above-described terminal-side method embodiment. All implementation processes and methods of the above method embodiments can be applied to this terminal embodiment and achieve the same technical effects, which will not be elaborated further below. Specifically, Figure 7 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0231] The terminal 700 includes, but is not limited to, at least some of the following components: radio frequency unit 701, network module 702, audio output unit 703, input unit 704, sensor 705, display unit 706, user input unit 707, interface unit 708, memory 709, and processor 710.

[0232] Those skilled in the art will understand that the terminal 700 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 710 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 7 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0233] It should be understood that, in this embodiment, the input unit 704 may include a graphics processing unit (GPU) 7041 and a microphone 7042. The GPU 7041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 706 may include a display panel 7061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. 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 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 buttons, power buttons, etc.), a trackball, a mouse, and a joystick, which will not be described in detail here.

[0234] In this embodiment, the radio frequency unit 701 receives downlink data from the network-side device and processes it for the processor 710; additionally, it sends uplink data to the network-side device. Typically, 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.

[0235] The memory 709 can be used to store software programs or instructions and various data. The memory 709 may primarily include a program or instruction storage area and a data storage area. The program or instruction storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 709 may include high-speed random access memory and non-volatile memory, wherein the non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. For example, at least one disk storage device, flash memory device, or other non-volatile solid-state storage device.

[0236] Processor 710 may include one or more processing units; optionally, processor 710 may integrate an application processor and a modem processor, wherein the application processor mainly handles the operating system, user interface, and applications or instructions, and the modem processor mainly handles wireless communication, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 710.

[0237] The radio frequency unit 701 is used to acquire the first information;

[0238] Processor 710 is configured to determine a target initial bandwidth portion in a first initial bandwidth portion and / or a second initial bandwidth portion based on the first information, wherein the first initial bandwidth portion is configured to the terminal 700 by a network-side device.

[0239] The first information includes at least one of the following:

[0240] First configuration information, the first configuration information is used to configure the target initial bandwidth portion of the terminal 700 application;

[0241] The application rules for the target initial bandwidth portion.

[0242] Optionally, the processor 710 is further configured to: determine a target initial bandwidth portion in the first initial bandwidth portion based on the first information if the bandwidth of the second initial bandwidth portion is greater than a preset value.

[0243] Optionally, the processor 710 is further configured to: determine, based on the first information, the target initial bandwidth portion applicable to a specific situation in a first initial bandwidth portion and / or a second initial bandwidth portion, wherein the specific situation includes at least one of the following:

[0244] The terminal 700 performs initial access;

[0245] After the Radio Resource Control (RRC) connection is released;

[0246] The terminal 700 is in an RRC inactive state or an idle state;

[0247] The inactive timer for the bandwidth portion expired, and the terminal 700 was not configured with a default bandwidth portion;

[0248] The inactive timer for the bandwidth portion expires, and the terminal 700 is configured with the default bandwidth portion as the initial bandwidth portion;

[0249] The terminal 700 needs to initiate random access, and there is no random access channel opportunity RO on the active bandwidth portion.

[0250] Optionally, the processor 710 is also used for:

[0251] Under certain conditions, switch to the target initial bandwidth portion; wherein, the specific conditions include at least one of the following:

[0252] The activated bandwidth portion is not the target initial bandwidth portion;

[0253] The terminal 700 releases the RRC connection;

[0254] The terminal 700 enters the RRC inactive state or idle state;

[0255] The inactive timer for the bandwidth portion expired, and the terminal 700 was not configured with a default bandwidth portion;

[0256] The inactive timer for the bandwidth portion expires, and the terminal 700 is configured with the default bandwidth portion as the initial bandwidth portion;

[0257] The terminal 700 needs to initiate random access, and there is no RO on the activated bandwidth portion.

[0258] Optionally, if the first information includes application rules for the target initial bandwidth portion, the processor 710 is further configured to perform at least one of the following:

[0259] The target initial bandwidth portion is determined based on the terminal's own capabilities, wherein different terminal capabilities result in different target initial bandwidth portions;

[0260] The initial bandwidth portion of the target is determined based on its own terminal identifier.

[0261] Optionally, the terminal capabilities include at least one of the following:

[0262] The number of receiving antennas;

[0263] Supported frequency division duplex modes, wherein the duplex mode includes any one of full-duplex, mixed-duplex and half-duplex;

[0264] Whether the first measured value is equal to or higher than the first threshold;

[0265] Does it support advance paging indication (PEI)?

[0266] Does it support the Small Data Transfer (SDT) function in RRC idle or inactive states?

[0267] Optionally, the processor 710 is also used for:

[0268] The terminal performs a modulo-N operation based on its own terminal identifier to obtain a remainder value, and determines the target initial bandwidth portion based on the remainder value, wherein N is the total number of initial bandwidth portions that the terminal can apply.

[0269] In this embodiment, the terminal 700 determines its target initial bandwidth portion based on the first configuration information and / or the application rules of the target initial bandwidth portion in the first initial bandwidth portion and / or the second initial bandwidth portion. In this way, each terminal can determine its own target initial bandwidth portion based on the first information, avoiding network congestion caused by a large number of terminals applying the same initial bandwidth portion and ensuring communication performance.

[0270] This application embodiment also provides a network-side device, including a processor and a communication interface. The communication interface is used to send first information to a terminal. The first information is used to instruct the terminal to determine a target initial bandwidth portion in a first initial bandwidth portion and / or a second initial bandwidth portion. The first initial bandwidth portion is configured to the terminal by the network-side device. The first information includes at least one of the following: first configuration information, used to configure the target initial bandwidth portion applied by the terminal; and application rules for the target initial bandwidth portion. This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above method embodiments can be applied to this network-side device embodiment and achieve the same technical effects.

[0271] Specifically, embodiments of this application also provide a network-side device. For example... Figure 8 As shown, the network-side device 800 includes: an antenna 81, a radio frequency (RF) device 82, and a baseband device 83. The antenna 81 is connected to the RF device 82. In the uplink direction, the RF 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 sends it to the RF device 82. The RF device 82 processes the received information and then transmits it through the antenna 81.

[0272] The aforementioned frequency band processing device can be located in the baseband device 83. The method executed by the network-side device in the above embodiments can be implemented in the baseband device 83, which includes a processor 84 and a memory 85.

[0273] Baseband device 83 may include, for example, at least one baseband board on which multiple chips are disposed, such as... Figure 8 As shown, one of the chips, for example, is a processor 84, which is connected to a memory 85 to call the program in the memory 85 and execute the network device operation shown in the above method embodiment.

[0274] The baseband device 83 may also include a network interface 86 for exchanging information with the radio frequency device 82, such as a common public radio interface (CPRI).

[0275] Specifically, the network-side device 800 of this embodiment further includes: instructions or programs stored in a memory 85 and executable on a processor 84, wherein the processor 84 calls the instructions or programs in the memory 85 to execute. Figure 5 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0276] This application embodiment also provides a readable storage medium storing a program or instructions that, when executed by a processor, implement the above-described functionality. Figure 2 The various processes of the method embodiments, or the implementations of the above... Figure 3 The various processes in the method embodiments described herein can achieve the same technical effect, and will not be repeated here to avoid repetition.

[0277] The processor mentioned above is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0278] This application embodiment also provides a chip, the chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor being used to run programs or instructions to implement the above. Figure 2 The various processes of the method embodiments, or the implementations of the above... Figure 3 The various processes in the method embodiments described herein can achieve the same technical effect, and will not be repeated here to avoid repetition.

[0279] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0280] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0281] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0282] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A method for determining an initial bandwidth portion, characterized in that, include: The terminal obtains the first information; The terminal determines the target initial bandwidth portion from the first initial bandwidth portion and the second initial bandwidth portion based on the first information; Under certain conditions, switch to the target initial bandwidth portion; wherein, the specific conditions include at least one of the following: The inactive timer for the bandwidth portion expired, and the terminal was not configured with a default bandwidth portion; The terminal needs to initiate random access, and there is no random access channel opportunity (RO) on the active bandwidth portion; The first information includes: First configuration information, the first configuration information is used to configure the target initial bandwidth portion of the terminal application; The first initial bandwidth portion is the initial bandwidth portion configured by the network-side device for terminals with reduced capabilities, and the second initial bandwidth portion is the initial bandwidth portion configured by the network-side device for terminals without reduced capabilities. The target initial bandwidth portion differs depending on the terminal capabilities of the application.

2. The method according to claim 1, characterized in that, The terminal determines the target initial bandwidth portion from the first initial bandwidth portion and the second initial bandwidth portion based on the first information, including: The terminal determines, based on the first information, the target initial bandwidth portion applicable to a specific situation from the first initial bandwidth portion and the second initial bandwidth portion, wherein the specific situation includes at least one of the following: The terminal performs initial access; After the Radio Resource Control (RRC) connection is released; The terminal is in an RRC inactive state or an idle state; The inactive timer for the bandwidth portion expired, and the terminal was not configured with a default bandwidth portion; The inactive timer for the bandwidth portion expires, and the terminal is configured with the default bandwidth portion as the initial bandwidth portion; The terminal needs to initiate random access, and there is no random access channel opportunity (RO) on the active bandwidth portion.

3. The method according to claim 1, characterized in that, The specific conditions also include at least one of the following: The activated bandwidth portion is not the target initial bandwidth portion; The terminal releases the RRC connection; The terminal enters the RRC inactive state or idle state; The inactive timer for the bandwidth portion expires, and the terminal is configured with the default bandwidth portion as the initial bandwidth portion.

4. The method according to claim 1, characterized in that, The first information also includes application rules for the target initial bandwidth portion. The terminal determines the target initial bandwidth portion from the first initial bandwidth portion and the second initial bandwidth portion according to the application rules for the target initial bandwidth portion, including at least one of the following: The terminal determines the target initial bandwidth portion based on its own terminal capabilities, wherein different terminal capabilities result in different target initial bandwidth portions. The terminal determines the target initial bandwidth portion based on its own terminal identifier.

5. The method according to claim 4, characterized in that, The terminal capabilities include at least one of the following: The number of receiving antennas; Supported frequency division duplex modes, wherein the duplex mode includes any one of full-duplex, mixed-duplex and half-duplex; Whether the first measured value is equal to or higher than the first threshold; Does it support advance paging indication (PEI)? Does it support the small data transfer SDT function in RRC idle or inactive states? 6. The method according to claim 4, characterized in that, The terminal determines the target initial bandwidth portion based on its own terminal identifier, including: The terminal performs a modulo-N operation based on its own terminal identifier to obtain a remainder value, and determines the target initial bandwidth portion based on the remainder value, wherein N is the total number of initial bandwidth portions that the terminal can apply.

7. A method for determining an initial bandwidth portion, characterized in that, include: The network-side device sends first information to the terminal, the first information being used to instruct the terminal to determine a target initial bandwidth portion in a first initial bandwidth portion and a second initial bandwidth portion; The first initial bandwidth portion is the initial bandwidth portion configured by the network-side device for the terminal with reduced capabilities, and the second initial bandwidth portion is the initial bandwidth portion configured by the network-side device for the terminal without reduced capabilities. The target initial bandwidth portion is different for different terminal capabilities and applications. The first information includes: first configuration information, which is used to configure the target initial bandwidth portion of the terminal application; The terminal is also configured to switch to the target initial bandwidth portion under specific conditions; wherein, the specific conditions include at least one of the following: The inactive timer for the bandwidth portion expired, and the terminal was not configured with a default bandwidth portion; The terminal needs to initiate random access, and there is no random access channel opportunity (RO) on the active bandwidth portion.

8. The method according to claim 7, characterized in that, The first information is used to instruct the terminal to determine, within a first initial bandwidth portion and a second initial bandwidth portion, the target initial bandwidth portion applicable to a specific situation, wherein the specific situation includes at least one of the following: The terminal performs initial access; After the terminal radio resource control (RRC) connection is released; The terminal is in an RRC inactive state or an idle state; The inactive timer for the bandwidth portion expired, and the terminal was not configured with a default bandwidth portion; The inactive timer for the bandwidth portion expires, and the terminal is configured with the default bandwidth portion as the initial bandwidth portion; The terminal needs to initiate random access, and there is no random access channel opportunity (RO) on the active bandwidth portion.

9. The method according to claim 7, characterized in that, The first information also includes application rules for the target initial bandwidth portion, and the first information is used to indicate at least one of the following: The terminal determines the target initial bandwidth portion based on its own terminal capabilities, wherein different terminal capabilities result in different target initial bandwidth portions. The terminal determines the target initial bandwidth portion based on its own terminal identifier.

10. The method according to claim 9, characterized in that, The terminal capabilities include at least one of the following: The number of receiving antennas; Supported frequency division duplex modes, wherein the duplex mode includes any one of full-duplex, mixed-duplex and half-duplex; Whether the first measured value is equal to or higher than the first threshold; Does it support advance paging indication (PEI)? Does it support the small data transfer SDT function in RRC idle or inactive states? 11. The method according to claim 9, characterized in that, The first information is used to instruct the terminal to perform a modulo-N operation based on its own terminal identifier to obtain a remainder value, and to determine the target initial bandwidth portion based on the remainder value, wherein N is the total number of initial bandwidth portions that the terminal can apply.

12. An initial bandwidth portion determination apparatus, the apparatus being applied to a terminal, characterized in that, include: The acquisition module is used to acquire the initial information. The determining module is configured to determine a target initial bandwidth portion based on the first information in a first initial bandwidth portion and a second initial bandwidth portion; A switching module is configured to switch to the target initial bandwidth portion under specific conditions; wherein the specific conditions include at least one of the following: The inactive timer for the bandwidth portion expired, and the terminal was not configured with a default bandwidth portion; The terminal needs to initiate random access, and there is no random access channel opportunity (RO) on the active bandwidth portion; The first information includes: First configuration information, the first configuration information being used to configure the target initial bandwidth portion applied by the device; The first initial bandwidth portion is the initial bandwidth portion configured by the network-side device for terminals with reduced capabilities, and the second initial bandwidth portion is the initial bandwidth portion configured by the network-side device for terminals without reduced capabilities. The target initial bandwidth portion differs depending on the terminal capabilities of the application.

13. The apparatus according to claim 12, characterized in that, The determining module is also used for: Based on the first information, a target initial bandwidth portion applicable to a specific situation is determined from a first initial bandwidth portion and a second initial bandwidth portion, wherein the specific situation includes at least one of the following: The device undergoes initial connection; After the Radio Resource Control (RRC) connection is released; The device is in an RRC inactive state or an idle state; The inactive timer for the bandwidth portion expired, and the device was not configured with a default bandwidth portion; The inactive timer for the bandwidth portion expires, and the device is configured with the default bandwidth portion as the initial bandwidth portion; The device needs to initiate random access, and there is no random access channel opportunity (RO) on the active bandwidth portion.

14. The apparatus according to claim 12, characterized in that, The specific conditions also include at least one of the following: The activated bandwidth portion is not the target initial bandwidth portion; The device releases the RRC connection; The device enters the RRC inactive state or idle state; The inactive timer for the bandwidth portion expires, and the device is configured with the default bandwidth portion as the initial bandwidth portion.

15. The apparatus according to claim 12, characterized in that, The first information also includes application rules for the target initial bandwidth portion, and the determining module is further configured to perform at least one of the following: The target initial bandwidth portion is determined based on the terminal's own capabilities, wherein different terminal capabilities result in different target initial bandwidth portions; The initial bandwidth portion of the target is determined based on its own terminal identifier.

16. The apparatus according to claim 15, characterized in that, The terminal capabilities include at least one of the following: The number of receiving antennas; Supported frequency division duplex modes, wherein the duplex mode includes any one of full-duplex, mixed-duplex and half-duplex; Whether the first measured value is equal to or higher than the first threshold; Does it support advance paging indication (PEI)? Does it support the small data transfer SDT function in RRC idle or inactive states? 17. The apparatus according to claim 15, characterized in that, The determining module is further configured to: perform a modulo-N operation based on its own terminal identifier to obtain a remainder value, and determine the target initial bandwidth portion based on the remainder value, wherein N is the total number of initial bandwidth portions that the device can apply.

18. An initial bandwidth determination apparatus, the apparatus being applied to a network-side device, characterized in that, include: A sending module is used to send first information to a terminal, the first information being used to instruct the terminal to determine a target initial bandwidth portion in a first initial bandwidth portion and a second initial bandwidth portion; The first initial bandwidth portion is the initial bandwidth portion configured by the network-side device for the terminal with reduced capabilities, and the second initial bandwidth portion is the initial bandwidth portion configured by the network-side device for the terminal without reduced capabilities. The target initial bandwidth portion is different for different terminal capabilities and applications. The first information includes: First configuration information, the first configuration information is used to configure the target initial bandwidth portion of the terminal application; The terminal is also configured to switch to the target initial bandwidth portion under specific conditions; wherein, the specific conditions include at least one of the following: The inactive timer for the bandwidth portion expired, and the terminal was not configured with a default bandwidth portion; The terminal needs to initiate random access, and there is no random access channel opportunity (RO) on the active bandwidth portion.

19. The apparatus according to claim 18, characterized in that, The first information is used to instruct the terminal to determine, within a first initial bandwidth portion and a second initial bandwidth portion, the target initial bandwidth portion applicable to a specific situation, wherein the specific situation includes at least one of the following: The terminal performs initial access; After the terminal radio resource control (RRC) connection is released; The terminal is in an RRC inactive state or an idle state; The inactive timer for the bandwidth portion expired, and the terminal was not configured with a default bandwidth portion; The inactive timer for the bandwidth portion expires, and the terminal is configured with the default bandwidth portion as the initial bandwidth portion; The terminal needs to initiate random access, and there is no random access channel opportunity (RO) on the active bandwidth portion.

20. The apparatus according to claim 18, characterized in that, The first information also includes application rules for the target initial bandwidth portion, and the first information is used to indicate at least one of the following: The terminal determines the target initial bandwidth portion based on its own terminal capabilities, wherein different terminal capabilities result in different target initial bandwidth portions. The terminal determines the target initial bandwidth portion based on its own terminal identifier.

21. The apparatus according to claim 20, characterized in that, The terminal capabilities include at least one of the following: The number of receiving antennas; Supported frequency division duplex modes, wherein the duplex mode includes any one of full-duplex, mixed-duplex and half-duplex; Whether the first measured value is equal to or higher than the first threshold; Does it support advance paging indication (PEI)? Does it support the small data transfer SDT function in RRC idle or inactive states? 22. The apparatus according to claim 20, characterized in that, The first information is used to instruct the terminal to perform a modulo-N operation based on its own terminal identifier to obtain a remainder value, and to determine the target initial bandwidth portion based on the remainder value, wherein N is the total number of initial bandwidth portions that the terminal can apply.

23. A terminal, characterized in that, It includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the initial bandwidth portion determination method as described in any one of claims 1-6.

24. A network-side device, characterized in that, It includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the initial bandwidth portion determination method as described in any one of claims 7-11.

25. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the initial bandwidth portion determination method as described in any one of claims 1-6, or implement the steps of the initial bandwidth portion determination method as described in any one of claims 7-11.

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