Power backoff information determination method, bandwidth indication method, device, terminal and network side equipment

Abstract

The invention discloses a power backoff information determination method, a bandwidth indication method, a device, a terminal and network side equipment, and belongs to the technical field of communication, the power backoff information determination method of the embodiment of the invention comprises the following steps: the terminal receives a bandwidth indication, and the bandwidth indication is used for indicating a virtual bandwidth; and the terminal determines MPR information based on the virtual bandwidth.

Description

Technical Field

[0001] This application belongs to the field of communication technology, specifically relating to a power backoff information determination method, bandwidth indication method, apparatus, terminal, and network-side equipment. Background Technology

[0002] Maximum Power Reduction (MPR) refers to the allowable power back-off value for a terminal to meet relevant radio frequency (RF) specifications. In some related technologies, MPR information is determined based on the actual channel bandwidth allocated to the terminal, i.e., the MPR information is evaluated under the worst-case scenario. This imposes excessive limitations on the terminal's transmission capabilities, resulting in poor transmission performance. Summary of the Invention

[0003] This application provides a power backoff information determination method, bandwidth indication method, apparatus, terminal, and network-side equipment, which can solve the problem of poor terminal transmission performance.

[0004] Firstly, a method for determining power back-off information is provided, including:

[0005] The terminal receives a bandwidth indication, which is used to indicate virtual bandwidth;

[0006] The terminal determines the MPR information based on the virtual bandwidth.

[0007] Secondly, a bandwidth indication method is provided, including:

[0008] The network-side device sends a bandwidth indication to the terminal, which is used to indicate the virtual bandwidth.

[0009] Thirdly, a power back-off information determination device is provided, comprising:

[0010] A receiving module is configured to receive a bandwidth indication, wherein the bandwidth indication is used to indicate virtual bandwidth;

[0011] The processing module is used to determine the maximum power backoff (MPR) information based on the virtual bandwidth.

[0012] Fourthly, a bandwidth indicating device is provided, comprising:

[0013] The sending module is used to send a bandwidth indication to the terminal, the bandwidth indication being used to indicate virtual bandwidth.

[0014] Fifthly, a power back-off information determination apparatus is provided, the apparatus being configured to perform the steps of the power back-off information determination method as provided in the embodiments of this application.

[0015] In a sixth aspect, a bandwidth indication device is provided, the device being configured to perform the steps of the bandwidth indication method as provided in the embodiments of this application.

[0016] In a seventh aspect, a terminal is provided, the terminal including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions being executed by the processor to implement the steps of the power back-off information determination method provided in the embodiments of this application.

[0017] Eighthly, a terminal is provided, including a processor and a communication interface, wherein the communication interface is used to receive a bandwidth indication, the bandwidth indication being used to indicate a virtual bandwidth; and the processor is used to determine maximum power backoff (MPR) information based on the virtual bandwidth.

[0018] In a ninth aspect, a network-side device is provided, the network-side device including a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the bandwidth indication method provided in the embodiments of this application.

[0019] In a tenth aspect, a network-side device is provided, including a processor and a communication interface, wherein the communication interface is used to send a bandwidth indication to a terminal, and the bandwidth indication is used to indicate virtual bandwidth.

[0020] Eleventhly, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the power back-off information determination method provided in the embodiments of this application, or implement the steps of the bandwidth indication method provided in the embodiments of this application.

[0021] In a twelfth aspect, a wireless communication system is provided, comprising: a terminal and a network-side device, wherein the terminal is configured to perform the steps of the power back-off information determination method provided in the embodiments of this application, and the network-side device is configured to perform the steps of the bandwidth indication method provided in the embodiments of this application.

[0022] In a thirteenth 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 used to run programs or instructions to implement the power back-off information determination method provided in the embodiments of this application, or to implement the bandwidth indication method provided in the embodiments of this application.

[0023] In a fourteenth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of the power back-off information determination method provided in the embodiments of this application, or the computer program / program product is executed by at least one processor to implement the steps of the bandwidth indication method provided in the embodiments of this application.

[0024] In this embodiment, the terminal receives a bandwidth indication, which indicates a virtual bandwidth; the terminal determines MPR information based on the virtual bandwidth. Since the MPR information is determined based on the virtual bandwidth, this avoids evaluating the MPR information under worst-case scenarios, which helps to improve the limitation on the terminal's transmission capabilities and thus enhance the terminal's transmission performance. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a system provided in an embodiment of this application;

[0026] Figure 2 This is a schematic diagram of an MPR limit table provided in an embodiment of this application;

[0027] Figure 3 This is a schematic diagram of bandwidth provided in an embodiment of this application;

[0028] Figure 4 This is a flowchart of a power back-off information determination method provided in an embodiment of this application;

[0029] Figure 5 This is a flowchart of a bandwidth indication method provided in an embodiment of this application;

[0030] Figure 6 This is a structural diagram of a power back-off information determination device provided in an embodiment of this application;

[0031] Figure 7 This is a structural diagram of a bandwidth indicator device provided in an embodiment of this application;

[0032] Figure 8 This is a structural diagram of a communication device provided in an embodiment of this application;

[0033] Figure 9 This is a structural diagram of a terminal provided in an embodiment of this application;

[0034] Figure 10 This is a structural diagram of a network-side device provided in an embodiment of this application. Detailed Implementation

[0035] 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.

[0036] The terms "first," "second," etc., used in 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, the first object can be one or more. Furthermore, "or" in this application indicates at least one of the connected objects. For example, the scope of protection for "A or B" covers at least three scenarios: Scenario 1: including A but not B; Scenario 2: including B but not A; Scenario 3: including both A and B. In addition, the terms "A and / or B," "at least one of A and B," and "at least one of A or B" also cover at least the above three scenarios. The character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0037] The term "instruction" in this application can be either a direct instruction (or explicit instruction) or an indirect instruction (or implicit instruction). A direct instruction can be understood as one in which the sender explicitly informs the receiver of specific information, the operation to be performed, or the requested result, etc., in the instruction sent. An indirect instruction can be understood as one in which the receiver determines the corresponding information based on the instruction sent by the sender, or makes a judgment and determines the operation to be performed or the requested result, etc., based on the judgment result.

[0038] 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), or 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 systems other than NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0039] 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 be a mobile phone, tablet computer, laptop computer, notebook computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR), virtual reality (VR) device, robot, wearable device, flight vehicle, vehicle user equipment (VUE), shipboard equipment, pedestrian user equipment (PUE), smart home devices (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game consoles, personal computers (PCs), ATMs, or self-service machines, etc. Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among these, in-vehicle devices can also be referred to as in-vehicle terminals, in-vehicle controllers, in-vehicle modules, in-vehicle components, in-vehicle chips, or in-vehicle units, etc. It should be noted that the specific type of terminal 11 is not limited in this application embodiment. Network-side equipment 12 can include access network equipment or core network equipment, wherein access network equipment can also be referred to as Radio Access Network (RAN) equipment, radio access network function, radio access network unit, or satellite. Access network equipment can include base stations, Wireless Local Area Network (WLAN) access points (AS), or Wireless Fidelity (WiFi) nodes, etc.In this context, a base station may be referred to as a Node B (NB), an Evolved Node B (eNB), a Next Generation Node B (gNB), a New Radio Node B (NR Node B), an Access Point, a Relay Base Station (RBS), a Serving Base Station (SBS), a Base Transceiver Station (BTS), a Radio Base Station, a Radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a Home Node B (HNB), a Home Evolved Node B, a Transmit / Receive Point (TRP), or any other suitable term in the relevant field, as long as the same technical effect is achieved. The base station is not limited to any specific technical terminology. It should be noted that in this application embodiment, only a base station in an NR system is used as an example for description, and the specific type of base station is not limited.

[0040] Core network equipment, also known as core network nodes, core network functions, or core network elements, includes, but is not limited to, at least one of the following: Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (or L-NEF), and Binding Support Function. Support Functions (BSF), Application Functions (AF), Location Management Functions (LMF), Gateway Mobile Location Centres (GMLC), and Network Data Analytics Functions (NWDAF), etc. It should be noted that this application embodiment only uses core network equipment in the NR system as an example and does not limit the specific type of core network equipment. If the name of the core network equipment mentioned in this application embodiment changes in subsequent protocol versions (e.g., 6G), it will still be within the scope of protection of this application.

[0041] Optionally, the core network equipment can be implemented by one or more functional modules in a single device, or by multiple devices working together; this application does not specifically limit this. It is understood that the aforementioned functional modules can be network elements in hardware devices, software functional modules running on dedicated hardware, or virtualized functional modules instantiated on a platform (e.g., a cloud platform).

[0042] MPR refers to the allowable power back-off value of a terminal in order to meet the relevant radio frequency specifications. Power back-off is related to different modulation orders and waveforms.

[0043] In some embodiments, taking power class 3 as an example, the MPR limit table can be as follows: Figure 2 As shown, Figure 2 Taking waveforms including Discrete Fourier Transform-Spread-Orthogonal Frequency Division Multiplexing (DFT-S-OFDM) and Cyclic Prefix-Orthogonal Frequency Division Multiplexing (CP-OFDM), and modulation including Quadrature Phase Shift Keying (QPSK) and Quadrature Amplitude Modulation (QAM) as examples, the inner, outer, and edge regions represent different resource block (RB) placement areas.

[0044] In some embodiments, the channel bandwidth is the maximum bandwidth actually available for transmission, specifically as follows: Figure 3 As shown, channel bandwidth is subdivided into the terminal's channel bandwidth and the network-side equipment's channel bandwidth, each corresponding to the maximum available bandwidth of the terminal or network-side equipment within a frequency band. The actual channel bandwidth allocated to the terminal should be entirely within the network-side equipment's channel bandwidth.

[0045] In some embodiments, the channel bandwidth of the network-side device and the channel bandwidth of the terminal part of the frequency band can be as shown in Table 1 and Table 2 below, respectively.

[0046] Table 1: Network-side device channel bandwidth and subcarrier spacing (SCS) for each operating frequency band in Frequency Range (FR) 1

[0047]

[0048] Table 2: Terminal Channel Bandwidth

[0049]

[0050]

[0051] The following description, in conjunction with the accompanying drawings, details the power back-off information determination method, apparatus, terminal, and network-side equipment provided in this application through some embodiments and application scenarios.

[0052] Please see Figure 4 , Figure 4 This is a flowchart of a power back-off information determination method provided in an embodiment of this application, such as... Figure 4 As shown, it includes the following steps:

[0053] Step 401: The terminal receives a bandwidth indication, which is used to indicate virtual bandwidth.

[0054] The terminal receive bandwidth indication can be the bandwidth indication sent by the terminal to the network-side device.

[0055] The aforementioned virtual bandwidth can be understood as bandwidth that is different from the channel bandwidth actually allocated to the terminal. For example, virtual bandwidth used to relax the restrictions on the existing transmission capabilities of the terminal, or virtual bandwidth used to reduce power back-off.

[0056] In this embodiment of the application, virtual bandwidth may also be referred to as assumed bandwidth, bandwidth used to determine MPR information, or transmit power participation bandwidth, etc. In this embodiment of the application, the name of virtual bandwidth is not limited.

[0057] Step 402: The terminal determines the MPR information based on the virtual bandwidth.

[0058] The aforementioned MPR information may include MPR-related radio frequency indicators or the spectrum range to which MPR-related radio frequency indicators are applicable, wherein the MPR-related radio frequency indicators may include at least one of the following:

[0059] Adjacent channel leakage ratio (ACLR);

[0060] Spectrum emission mask (SEM);

[0061] Error vector magnitude (EVM);

[0062] In-band emission (IBE);

[0063] Occupied bandwidth (OBW);

[0064] Stray emission.

[0065] Alternatively, the MPR information mentioned above may include MPR limits, such as 0dB, 0.5dB, 1dB, 2dB, etc.

[0066] Alternatively, the MPR information mentioned above may include the valid range of the RB.

[0067] In this embodiment of the application, the method for determining MPR information based on the virtual bandwidth is not limited. For example, it can be based on the bandwidth-based method agreed upon in the protocol, or it can be based on the determination methods of the following embodiments provided in this application. There is no limitation on this method.

[0068] In this embodiment, the terminal receives a bandwidth indication, which indicates a virtual bandwidth; the terminal determines MPR information based on the virtual bandwidth. Since the MPR information is determined based on the virtual bandwidth, this avoids evaluating the MPR information under worst-case scenarios, which helps to improve the limitations on the terminal's transmission capabilities and thus enhance the terminal's transmission performance. For example, when the network allows relaxed radio frequency specifications, the network-side device can indicate the aforementioned virtual bandwidth to the terminal, enabling the terminal to reduce the MPR and thus increase its transmission power. For example, for terminals that support power enhancement, the MPR can be further reduced, and even the transmission power can be increased while meeting relevant radio frequency specifications.

[0069] As an optional implementation, the virtual bandwidth is the bandwidth to which at least one of the following radio frequency indicators applies:

[0070] In-band radiation limits, adjacent channel leakage ratio, radio frequency limits for spectral radiation templates, and radio frequency limits for spurious emissions.

[0071] This implementation method allows the applicable bandwidth of at least one of the following—in-band radiation limits, adjacent channel leakage ratio, RF limit requirements of the spectrum radiation template, and RF limit requirements for spurious emissions—to be determined as the aforementioned virtual bandwidth. This avoids over-protection of the wireless spectrum environment, relaxes restrictions on the existing transmission capabilities of the terminal, fully utilizes the terminal's hardware transmission capabilities, and further improves the terminal's transmission performance. For example, the terminal can increase its maximum transmit power by incorporating at least one of the following virtual bandwidth requirements: in-band radiation limits, adjacent channel leakage ratio, RF limit requirements of the spectrum radiation template, and RF limit requirements for spurious emissions.

[0072] As an optional implementation, the terminal determines the MPR information based on the virtual bandwidth, including:

[0073] The terminal determines the maximum channel bandwidth it can support based on the virtual bandwidth, and determines the MPR information based on the maximum channel bandwidth.

[0074] The determination of the maximum channel bandwidth supported by the terminal based on the virtual bandwidth can be interpreted as determining the maximum channel bandwidth supported by the terminal corresponding to the virtual bandwidth. For example, if the terminal supports a 15kHz SCS with a channel bandwidth list of {5,10,15,20,25,30,40,45,50}, and the virtual bandwidth is 36MHz, then the maximum channel bandwidth supported by the terminal is determined to be 30MHz. As another example, if the terminal supports a 15kHz SCS with a channel bandwidth list of {5,10,15,20,25,30,40,45,50}, and the virtual bandwidth is 21MHz, then the maximum channel bandwidth supported by the terminal is determined to be 20MHz.

[0075] Specifically, the determination of MPR information based on the maximum channel bandwidth can be achieved using the method agreed upon in the protocol for determining MPR information based on the maximum channel bandwidth.

[0076] In this embodiment, since the MPR information is determined based on the maximum channel bandwidth, the MPR information can be made more reliable.

[0077] It should be noted that, in this embodiment, the terminal is not limited to determining the maximum channel bandwidth it can support based on the virtual bandwidth, and determining the MPR information based on the maximum channel bandwidth. For example, in some implementations, the MPR information can also be determined directly based on the mapping relationship between virtual bandwidth and MPR information.

[0078] Optionally, determining the MPR information based on the maximum channel bandwidth includes:

[0079] When the maximum channel bandwidth is greater than N times the actual channel bandwidth used by the terminal, the MPR information is determined based on the channel bandwidth N times the actual channel bandwidth used by the terminal, where N is a real number greater than 0, or N is related to the actual channel bandwidth used or the actual resource block (RB) configuration information.

[0080] The N mentioned above can be agreed upon in the protocol or configured by the network-side device. For example, N can be a real number such as 2, 2.5, 1.5 or 0.5.

[0081] In some implementations, N is a real number greater than 1.

[0082] When N is a real number greater than 0 and less than 1, it can be understood as adding an indicated virtual bandwidth to one or both ends of the actual channel bandwidth used.

[0083] The relationship between N and the actual channel bandwidth or the actual resource block (RB) configuration information can be understood as follows: the value of N is determined by the actual channel bandwidth or the actual resource block (RB) configuration information. For example, there may be a mapping relationship between the actual channel bandwidth and the value of N, or a mapping relationship between the actual resource block (RB) configuration information and the value of N. These mapping relationships may be agreed upon by protocols or configured by network-side devices.

[0084] For example, if the maximum channel bandwidth is greater than twice the actual channel bandwidth used by the terminal, the MPR information is determined based on the channel bandwidth that is twice the actual channel bandwidth used by the terminal.

[0085] In this implementation, since the maximum channel bandwidth is greater than N times the actual channel bandwidth used by the terminal, the MPR information is determined based on the channel bandwidth that is N times the actual channel bandwidth used by the terminal, so as to avoid the terminal using an excessively large channel bandwidth to determine the MPR information and improve the reliability of the MPR information.

[0086] Optionally, if the maximum channel bandwidth is greater than or equal to N times the actual channel bandwidth used by the terminal, the MPR information is determined based on the maximum channel bandwidth.

[0087] For example: A terminal supports a channel bandwidth list of {5, 10, 15, 20, 25, 30, 40, 45, 50} on a 15kHz SCS. The actual channel bandwidth used by the terminal is 15MHz, while the virtual bandwidth allocated by the network-side device is 21MHz. The terminal selects the maximum supported channel bandwidth of 20MHz based on 21MHz, and the corresponding MPR information is calculated based on 20MHz. If the virtual bandwidth allocated by the network-side device is 52MHz, the terminal can select the maximum supported channel bandwidth of 50MHz based on 52MHz. Since the actual channel bandwidth used is 15MHz, the corresponding double bandwidth is only 30MHz, so the final virtual bandwidth is updated to 30MHz, and the corresponding MPR information is calculated based on 30MHz.

[0088] As an optional implementation, the MPR information includes at least one of the following:

[0089] The effective range of the Inner RB, the effective range of the Outer RB, and the effective range of the Edge RB.

[0090] Specifically, the effective ranges of the internal RB, external RB, and edge RB are used to determine the MPR within each range, for example: Figure 2 As shown, the MPR varies across different valid ranges, or the MPR may be the same across some valid ranges. It should be noted that... Figure 2 The MPR limit table shown is only an example. In the embodiments of this application, the MPR limit table defined by the protocol can be used, or the MPR limit table newly introduced by the subsequent protocol or the corresponding MPR under different RB allocation methods can be used, and there is no limitation on this.

[0091] In some implementations, the terminal may pre-configure an MPR limit table corresponding to the virtual bandwidth, or the protocol may stipulate an MPR limit table corresponding to the virtual bandwidth.

[0092] In this implementation, the effective range of internal RBs, external RBs, and edge RBs can be determined based on virtual bandwidth. This allows the MPR limit of each RB to be determined based on virtual bandwidth, which is beneficial for relaxing MPR restrictions and improving the transmission performance of the terminal.

[0093] In some implementations, the effective range of the inner RB, the effective range of the outer RB, and the effective range of the edge RB can be determined based on the following:

[0094] RB start,low =max(1,floor(L) CRB / 2))

[0095] RB start,high =N RB –RB Start,Low –L CRB

[0096] Among them, L CRB This indicates the number of consecutive RB allocations, expressed in units of RB.

[0097] N RB This represents the maximum number of RBs given a channel bandwidth and subcarrier spacing;

[0098] max() represents the maximum value among all parameters, and floor(x) is the largest integer less than or equal to x.

[0099] An RB allocation belongs to the inner RB allocation region if it meets the following conditions:

[0100] RB start,low ≤RB start ≤RB start,high At the same time L CRB ≤ceil(N RB / 2)

[0101] Among them, RB startIt is the starting position or lowest RB index of the RB allocation; ceil(x) is the smallest integer greater than or equal to x.

[0102] An RB allocation belongs to the Edge RB allocation region if it meets the following conditions:

[0103] LCRB≤2, and the RB position is at the top or bottom of the channel.

[0104] Other types of RB allocations belong to the outer RB allocation area.

[0105] Optionally, the maximum number of RBs corresponding to at least one of the effective range of the inner RB, the effective range of the outer RB, and the effective range of the edge RB includes:

[0106] The maximum number of RBs corresponding to the virtual bandwidth; or

[0107] The maximum number of RBs corresponding to the maximum channel bandwidth; or

[0108] When the maximum channel bandwidth is greater than N times the actual channel bandwidth used by the terminal, the maximum number of RBs corresponding to N times the channel bandwidth actually used by the terminal.

[0109] The maximum channel bandwidth is determined based on the virtual bandwidth, which determines the maximum channel bandwidth that the terminal can support.

[0110] The maximum number of RBs mentioned above is the same as the NRBs in the above method. For example, taking a 15kHz SCS as an example, if the maximum channel bandwidth is 30MHz, then the maximum number of RBs is 160. Taking a 15kHz SCS as an example, if the maximum channel bandwidth is 20MHz, then the maximum number of RBs is 106.

[0111] In this implementation, the maximum number of RBs can be determined based on virtual bandwidth, thereby determining the effective range of the internal RBs, the effective range of the external RBs, and the effective range of the edge RBs.

[0112] Optionally, the starting position or lowest RB index corresponding to the effective range of the internal RB includes:

[0113] The starting position of the RB actually used by the terminal or the lowest RB index plus the offset corresponding to the maximum channel bandwidth.

[0114] The starting position or lowest RB index of the above RB allocation can be the RB in the above embodiments. start Or it can be represented as NewRB start .

[0115] In some implementations, the offset corresponding to the maximum channel bandwidth includes:

[0116] The floor value of M times the number of RBs in the first channel bandwidth, where the number of RBs in the first channel bandwidth is equal to the maximum number of RBs corresponding to the second channel bandwidth minus the maximum number of RBs corresponding to the actual channel bandwidth used by the terminal, and M is a real number greater than 0.

[0117] The second channel bandwidth is the virtual bandwidth; or

[0118] The second channel bandwidth is less than or equal to the maximum channel bandwidth; or

[0119] When the maximum channel bandwidth is greater than N times the actual channel bandwidth used by the terminal, the second channel bandwidth is equal to N times the actual channel bandwidth used by the terminal.

[0120] The M mentioned above is a real number agreed upon in the protocol or configured by the network-side equipment, such as 0.5 or 0.6.

[0121] For example: NewRB start =RB start +floor(0.5*(the maximum number of RBs corresponding to the maximum channel bandwidth (CBW) supported by the terminal as indicated by the virtual bandwidth signaling - the maximum number of RBs corresponding to the actual channel bandwidth (CBW) used by the terminal), where RB start This refers to the starting position or lowest RB index of the actual RB in use.

[0122] For example: NewRB start =RB start +floor(0.5*(min(the maximum number of RBs corresponding to the maximum channel bandwidth (CBW) supported by the terminal as indicated by the virtual bandwidth signaling, and the maximum number of RBs corresponding to the channel actually used by the terminal * 2) - the maximum number of RBs corresponding to the actual channel bandwidth (CBW) used by the terminal), where RB start This refers to the starting position or lowest RB index of the actual RB in use.

[0123] Since the effective range of the internal RB corresponds to the starting position or lowest RB index of the RB allocation, which includes the starting position or lowest RB index of the RB actually used by the terminal plus the offset corresponding to the maximum channel bandwidth, the effective range of the internal RB can be relaxed to achieve MPR relaxation, thereby improving the terminal's transmission performance.

[0124] The effective ranges of the internal RB, external RB, and edge RB are illustrated below through several examples:

[0125] In one embodiment:

[0126] In this embodiment, a new bandwidth indication (such as a terminal virtual bandwidth signaling indication) is added to the base station to indicate the applicable spectrum range for the terminal's in-band radiation limits, adjacent channel leakage ratio, spectral radiation template, and spurious radio frequency limit requirements, i.e., the aforementioned virtual bandwidth. Based on this terminal virtual bandwidth indication, the terminal relaxes the corresponding radiation limit requirements, increases the maximum transmit power, and adopts the corresponding MPR limit table for the terminal virtual bandwidth. Based on the terminal virtual bandwidth, the resource allocation method for the effective range of internal RBs, external RBs, and edge RBs is calculated. A typical value for the terminal virtual bandwidth can be the actual channel bandwidth used by the terminal plus 1MHz or 2MHz. The maximum channel bandwidth supported by the terminal can be twice the actual channel bandwidth used by the terminal, twice the maximum channel bandwidth supported by the terminal, the maximum channel bandwidth supported by the base station, or the maximum channel bandwidth supported within the frequency band controlled by the operator, etc.

[0127] In one embodiment:

[0128] In this embodiment, a new bandwidth indication (such as a terminal virtual bandwidth signaling indication) is added to the base station to indicate the applicable spectrum range for the terminal's in-band radiation limits, adjacent channel leakage ratio, spectral radiation template, and spurious radio frequency limit requirements, i.e., the aforementioned virtual bandwidth. The terminal can support different channel bandwidth lists for different frequency bands. The terminal selects the maximum supported channel bandwidth within the newly added virtual bandwidth indicated by the base station, and calculates the MPR limit requirement based on this channel bandwidth. The MPR limit requirement is based on the resource allocation method of internal RBs, external RBs, and edge RBs, which represent different RB placement areas, and the effective range of internal RBs, external RBs, and edge RBs, where N is the effective range of the resource allocation method. RB The maximum channel bandwidth supported by the terminal is less than or equal to the virtual bandwidth signaling indication, i.e., N in the above resource allocation method. RB Determined based on the updated bandwidth. RB start The starting position of the RB allocation for the channel bandwidth used, or the lowest RB index, plus 1 / 2 (less than or equal to the maximum number of RBs corresponding to the maximum channel bandwidth (CBW) supported by the terminal as indicated by the virtual bandwidth signaling - the maximum number of RBs corresponding to the channel bandwidth (CBW) actually used by the terminal).

[0129] For example: NewRB start =RB start +floor(0.5*(maximum number of RBs corresponding to the maximum channel bandwidth (CBW) supported by the terminal as indicated by the virtual bandwidth signaling - maximum number of RBs corresponding to the actual channel bandwidth (CBW) used by the terminal).

[0130] L CRB(Indicates the number of consecutive RBs allocated in units of RB) Based on the actual resource blocks used, the calculation of MPR is not updated with virtual bandwidth.

[0131] For example: The terminal supports the following channel bandwidth list on n1 (15kHz SCS): {5,10,15,20,25,30,40,45,50}. The actual channel bandwidth used by the terminal is 15MHz, while the virtual bandwidth allocated by the base station is 36MHz. The terminal selects the maximum supported channel bandwidth of 30MHz based on 36MHz, and the corresponding MPR limit is calculated based on 30MHz. N RB The value is 160 (30MHz). The starting position of the corresponding RB allocation is updated to: RB start +floor(0.5*(160-79)=RB start +40.

[0132] In one embodiment:

[0133] In this embodiment, a new bandwidth indication (such as a terminal virtual bandwidth signaling indication) is added to the base station to indicate the applicable spectrum range for the terminal's in-band radiation limits, adjacent channel leakage ratio, spectral radiation template, and spurious radio frequency limit requirements, i.e., the aforementioned virtual bandwidth. The terminal can support different channel bandwidth lists for different frequency bands. The terminal selects the maximum channel bandwidth it can support within the newly added virtual bandwidth indicated by the base station. When the selected maximum channel bandwidth is greater than twice the channel bandwidth actually used by the terminal, the terminal calculates the MPR limit requirement based on twice the actual used channel bandwidth as the virtual bandwidth. The MPR limit requirement is based on the resource allocation method where internal RBs, external RBs, and edge RBs represent different RB placement areas. The effective range of internal RBs, external RBs, and edge RBs is updated to be determined based on virtual bandwidth. That is, in the resource allocation method, N... RB Determined based on the updated virtual bandwidth. RB start Add 1 / 2 (min(the maximum number of RBs corresponding to the maximum channel bandwidth (CBW) supported by the terminal as indicated by the virtual bandwidth signaling, the maximum number of RBs corresponding to the channel bandwidth actually used by the terminal * 2) - the maximum number of RBs corresponding to the channel bandwidth (CBW) actually used by the terminal) to the starting position or the lowest RB index for the RBs used in the channel bandwidth.

[0134] For example: NewRB start =RB start +floor(0.5*(min(the maximum number of RBs corresponding to the maximum channel bandwidth (CBW) supported by the terminal as indicated by the virtual bandwidth signaling, the maximum number of RBs corresponding to the channel bandwidth actually used by the terminal * 2) - the maximum number of RBs corresponding to the actual channel bandwidth (CBW) used by the terminal).

[0135] L CRB (Indicates the number of consecutive RBs allocated in units of RB) Based on the actual resource blocks used, the calculation of MPR is not updated with virtual bandwidth.

[0136] For example: The terminal supports the following channel bandwidths on n1 (15kHz SCS): {5,10,15,20,25,30,40,45,50}. The actual channel bandwidth used by the terminal is 15MHz, and the virtual bandwidth allocated by the base station is 21MHz. The terminal selects the maximum supported channel bandwidth of 20MHz based on 21MHz, and the corresponding MPR limit is calculated based on 20MHz. N RB Updated to 106 (20MHz). The corresponding starting position of the RB allocation is updated to: RB start +floor(0.5*(106-79)=RB start +13. The base station assigns a virtual bandwidth of 52MHz, and the terminal can select a maximum supported channel bandwidth of 50MHz based on this. However, since the actual channel bandwidth used is 15MHz, the corresponding double bandwidth is only 30MHz, and the virtual bandwidth is ultimately updated to 30MHz. N RB Updated to 160 (30MHz). The corresponding RB allocation start position is updated to: RB start +floor(0.5*(160-79)=RB start +40.

[0137] As an optional implementation, the virtual bandwidth includes:

[0138] The channel bandwidths supported by the terminal are those listed in the channel bandwidth list; or

[0139] The bandwidth supported by the terminal is from the list of virtual bandwidths.

[0140] The channel bandwidths and virtual bandwidths supported by the terminal in the aforementioned list of channel bandwidths can be pre-reported to the network-side equipment.

[0141] In this embodiment, since the virtual bandwidth is the channel bandwidth in the list of channel bandwidths supported by the terminal or the channel bandwidth in the virtual bandwidth list, the indicated virtual bandwidth can be better matched with the terminal, thereby making the determined MPR information more suitable for the terminal.

[0142] In one embodiment:

[0143] In this embodiment, a new bandwidth indication (such as a terminal virtual bandwidth signaling indication) is added to the base station to indicate the applicable spectrum range for the terminal's in-band radiation limits, adjacent channel leakage ratio, spectral radiation template, and spurious radio frequency limit requirements, i.e., the aforementioned virtual bandwidth. The terminal can support different channel bandwidth lists for different frequency bands. The base station selects a channel bandwidth that can be relaxed from the terminal's supported channel bandwidth list as the virtual bandwidth signaling and issues it. The terminal calculates the MPR limit requirement based on the virtual channel bandwidth. The MPR limit requirement is based on the resource allocation method of internal RB, external RB, and edge RB representing different RB placement areas, and the effective range of internal RB, external RB, and edge RB. RB The maximum channel bandwidth supported by the terminal is determined based on the signaling indication that it is less than or equal to the virtual bandwidth, i.e., N in the resource allocation method. RB Determined based on the updated bandwidth. RB start Update to the starting position or lowest RB index of the RB allocation for the channel bandwidth used, plus 1 / 2 (less than or equal to the maximum number of RBs corresponding to the maximum channel bandwidth (CBW) supported by the terminal indicated by the virtual bandwidth signaling - the maximum number of RBs corresponding to the channel bandwidth CBW actually used by the terminal).

[0144] For example: NewRB start =RB start +floor(0.5*(maximum number of RBs corresponding to Virtual Bandwidth Signaling Indicator (CBW) - maximum number of RBs corresponding to the actual channel bandwidth (CBW) used by the terminal).

[0145] L CRB (Indicates the number of consecutive RBs allocated in units of RB) Based on the actual resource blocks used, the calculation of MPR is not updated with virtual bandwidth.

[0146] For example: The terminal supports a channel bandwidth list of {5,10,15,20,25,30,40,45,50} on n1 (15kHz SCS). The actual channel bandwidth used by the terminal is 15MHz. The base station selects a virtual bandwidth of 30MHz from the terminal's supported channel bandwidth list and sends it to the terminal. The terminal calculates the MPR limit based on the virtual bandwidth. NRB is updated from 79 (corresponding to 15MHz) to 160 (30MHz). The starting position of the corresponding RB allocation is updated to: RB start +floor(0.5*(160-79)=RB start +40.

[0147] Optionally, the bandwidths supported by the terminal in the virtual bandwidth list include:

[0148] The bandwidth indicator is the virtual bandwidth indicated within the list of virtual bandwidths supported by the terminal; or

[0149] The terminal selects a virtual bandwidth from the list of virtual bandwidths supported by the terminal based on the bandwidth indication.

[0150] The aforementioned bandwidth indication within the list of virtual bandwidths supported by the terminal can be understood as the virtual bandwidth selected by the network-side device within the list of virtual bandwidths supported by the terminal.

[0151] In this implementation, the network-side device or terminal can select virtual bandwidth from the list of virtual bandwidths supported by the terminal, so that the final determined MPR information is more compatible with the terminal.

[0152] Optionally, the method further includes at least one of the following:

[0153] The terminal reports the list of channel bandwidths supported by the terminal.

[0154] The terminal reports a list of virtual bandwidths it supports.

[0155] The terminal may report the list of channel bandwidths it supports and the list of virtual bandwidths it supports before step 401.

[0156] In this implementation, by reporting at least one of the terminal-supported channel bandwidth list and the terminal-supported virtual bandwidth list, the network-side device can indicate a virtual bandwidth that is more compatible with the terminal, so that the MPR information is more compatible with the terminal.

[0157] In one embodiment:

[0158] In addition to supporting different channel bandwidth lists for different frequency bands, the terminal also supports virtual bandwidth solely for power enhancement to improve maximum transmit power. For example, the terminal supports the following channel bandwidth list on n1 (15kHz SCS): {5,10,15,20,25,30,40,45,50}. The terminal also supports maximum transmit power improvement (MPR limit table) under the virtual bandwidth list, such as {35,80}. When the base station allocates virtual bandwidth, the terminal comprehensively considers both the supported channel bandwidth list and the virtual bandwidth list, selecting an indication that is less than or equal to the virtual bandwidth allocated by the base station to calculate the MPR limit requirement.

[0159] In one embodiment:

[0160] In addition to supporting different channel bandwidth lists for different frequency bands, the terminal also supports additional virtual bandwidth solely for power enhancement to improve maximum transmit power. For example, the terminal supports the following channel bandwidth list on n1 (15kHz SCS): {5,10,15,20,25,30,40,45,50}. The terminal also supports maximum transmit power improvement (MPR limit table) under the additional virtual bandwidth list, such as {35,80}. The terminal reports its supported virtual bandwidth list. When the base station distributes virtual bandwidth, it needs to comprehensively consider both the terminal's supported channel bandwidth list and the virtual bandwidth list, selecting the channel bandwidth that can be relaxed, and then distributing it to the terminal as virtual channel bandwidth.

[0161] As an optional implementation, the method further includes:

[0162] The terminal determines whether to enable the power boosting function based on the virtual bandwidth. Wherein, if the maximum channel bandwidth that the terminal can support corresponding to the virtual bandwidth is greater than N times the channel bandwidth actually used by the terminal, the actual transmit power of the terminal is allowed to be higher than the current power level of the terminal. N is a real number greater than 0, or N is related to the actual channel bandwidth used or the actual RB configuration information.

[0163] The aforementioned terminal determines whether to enable the power boost function based on the virtual bandwidth by determining whether to enable the power boost function when the maximum channel bandwidth supported by the terminal corresponding to the virtual bandwidth is greater than N times the channel bandwidth actually used by the terminal; or, when the virtual bandwidth is greater than or equal to a preset value, such as greater than or equal to 1MHz or 2MHz, the power boost function is enabled.

[0164] The above-mentioned permission for the terminal's actual transmit power to be higher than the terminal's current power level can be granted when it is determined that the power boost function is enabled, allowing the terminal's actual transmit power to be higher than the terminal's current power level.

[0165] In some implementations, a power level higher than the current power level of the terminal may be allowed even if it is determined that the power boost function is not enabled; this is not limited.

[0166] In this implementation, when the maximum channel bandwidth supported by the terminal corresponding to the virtual bandwidth is greater than N times the channel bandwidth actually used by the terminal, the actual transmit power of the terminal can be allowed to be higher than the current power level of the terminal, thereby improving the terminal's transmit performance. For example, when the terminal supports power boosting, the terminal calculates whether to enable the power boosting function based on the virtual bandwidth indicated by the base station. In particular, when the virtual bandwidth is more than twice the actual channel bandwidth used by the terminal, the actual transmit power of the terminal may be higher than the current power level of the terminal.

[0167] It should be noted that this embodiment may also determine whether to enable the power boost function without based on virtual bandwidth. For example, the power boost function may be enabled by default or disabled by default.

[0168] In this embodiment, the terminal receives a bandwidth indication, which indicates a virtual bandwidth; the terminal determines MPR information based on the virtual bandwidth. Since the MPR information is determined based on the virtual bandwidth, this avoids evaluating the MPR information under worst-case scenarios, which helps to improve the limitation on the terminal's transmission capabilities and thus enhance the terminal's transmission performance.

[0169] Please see Figure 5 , Figure 5 This is a flowchart of a bandwidth indication method provided in an embodiment of this application, such as... Figure 5 As shown, it includes the following steps:

[0170] Step 501: The network-side device sends a bandwidth indication to the terminal, the bandwidth indication being used to indicate virtual bandwidth.

[0171] Optionally, the virtual bandwidth is the bandwidth to which at least one of the following radio frequency indicators applies:

[0172] In-band radiation limits, adjacent channel leakage ratio, radio frequency limits for spectral radiation templates, and radio frequency limits for spurious emissions.

[0173] Optionally, the virtual bandwidth includes:

[0174] The channel bandwidths supported by the terminal are those listed in the channel bandwidth list; or

[0175] The bandwidth supported by the terminal is from the list of virtual bandwidths.

[0176] Optionally, the method further includes at least one of the following:

[0177] The network-side device receives the list of channel bandwidths supported by the terminal reported by the terminal;

[0178] The network-side device receives a list of virtual bandwidths supported by the terminal reported by the terminal.

[0179] Optionally, the aforementioned virtual bandwidth is used to determine MPR information; see details below. Figure 4 The embodiments shown are not described in detail here.

[0180] It should be noted that this embodiment is as a comparison with... Figure 4 The implementation methods of the network-side devices shown in the embodiments can be found in the following examples. Figure 4 To avoid repetition, the relevant descriptions of the embodiments shown will not be repeated in this embodiment.

[0181] The power rollback information determination method provided in this application can be executed by a power rollback information determination device. This application uses the example of a power rollback information determination device executing the power rollback information determination method to illustrate the power rollback information determination device provided in this application.

[0182] The bandwidth indication method provided in this application can be executed by a bandwidth indication device. This application uses the example of a bandwidth indication device executing the bandwidth indication method to illustrate the bandwidth indication device provided in this application.

[0183] This application provides a power back-off information determination device. As an example, the power back-off information determination device can be a communication device or a component in a communication device, such as a chip. The communication device can be a terminal, a network-side device, or a server, etc. Exemplarily, the terminal can be, but is not limited to, the type of terminal 11 listed above, and the network-side device can be, but is not limited to, the type of network-side device 12 listed above. This application does not impose specific limitations.

[0184] This application provides a bandwidth indicating device. As an example, the bandwidth indicating device may be a communication device or a component within a communication device, such as a chip. The communication device may be a terminal, a network-side device, or a server, etc. Exemplarily, the terminal may include, but is not limited to, the type of terminal 11 listed above, and the network-side device may include, but is not limited to, the type of network-side device 12 listed above. This application does not impose specific limitations.

[0185] The power back-off information determination device or bandwidth indication device may include a receiving module, a transmitting module, and a processing module. These modules can be implemented in software or hardware. When implemented in hardware, the processing module can be implemented by a processor. For example, the processor may include a general-purpose processor, a special-purpose processor, such as a Central Processing Unit (CPU), a microprocessor, a Digital Signal Processor (DSP), an Artificial Intelligence (AI) processor, a Graphics Processing Unit (GPU), an Application Specific Integrated Circuit (ASIC), a Network Processor (NP), a Field Programmable Gate Array (FPGA), or other programmable logic devices, gate circuits, transistors, discrete hardware components, etc. The receiving and transmitting modules may be implemented by a communication interface, which may include one or more of the following: a transceiver, pins, circuits, a bus, and a radio frequency unit.

[0186] For details, see Figure 6 When the power back-off information determination device is a terminal or a component within a terminal, the power back-off information determination device 600 includes:

[0187] Receiver module 601 is used to receive a bandwidth indication, the bandwidth indication being used to indicate virtual bandwidth;

[0188] Processing module 602 is used to determine maximum power backoff (MPR) information based on the virtual bandwidth.

[0189] Optionally, the virtual bandwidth is the bandwidth to which at least one of the following radio frequency indicators applies:

[0190] In-band radiation limits, adjacent channel leakage ratio, radio frequency limits for spectral radiation templates, and radio frequency limits for spurious emissions.

[0191] Optionally, the processing module 602 is used to determine the maximum channel bandwidth that the terminal can support based on the virtual bandwidth, and to determine MPR information based on the maximum channel bandwidth.

[0192] Optionally, determining the MPR information based on the maximum channel bandwidth includes:

[0193] When the maximum channel bandwidth is greater than N times the actual channel bandwidth used by the terminal, the MPR information is determined based on the channel bandwidth N times the actual channel bandwidth used by the terminal, where N is a real number greater than 0, or N is related to the actual channel bandwidth used or the actual resource block (RB) configuration information.

[0194] Optionally, the MPR information includes at least one of the following:

[0195] The effective range of the internal RB, the effective range of the external RB, and the effective range of the edge RB.

[0196] Optionally, the maximum number of RBs corresponding to at least one of the effective range of the inner RB, the effective range of the outer RB, and the effective range of the edge RB includes:

[0197] The maximum number of RBs corresponding to the virtual bandwidth; or

[0198] The maximum number of RBs corresponding to the maximum channel bandwidth; or

[0199] When the maximum channel bandwidth is greater than N times the actual channel bandwidth used by the terminal, the maximum number of RBs corresponding to N times the channel bandwidth actually used by the terminal.

[0200] The maximum channel bandwidth is determined based on the virtual bandwidth, which determines the maximum channel bandwidth that the terminal can support.

[0201] Optionally, the starting position or lowest RB index corresponding to the effective range of the internal RB includes:

[0202] The starting position of the RB actually used by the terminal or the lowest RB index plus the offset corresponding to the maximum channel bandwidth.

[0203] Optionally, the offset corresponding to the maximum channel bandwidth includes:

[0204] The floor value of M times the number of RBs in the first channel bandwidth, where the number of RBs in the first channel bandwidth is equal to the maximum number of RBs corresponding to the second channel bandwidth minus the maximum number of RBs corresponding to the actual channel bandwidth used by the terminal, and M is a real number greater than 0.

[0205] The second channel bandwidth is the virtual bandwidth; or

[0206] The second channel bandwidth is less than or equal to the maximum channel bandwidth; or

[0207] When the maximum channel bandwidth is greater than N times the actual channel bandwidth used by the terminal, the second channel bandwidth is equal to N times the actual channel bandwidth used by the terminal.

[0208] Optionally, the virtual bandwidth includes:

[0209] The channel bandwidths supported by the terminal are those listed in the channel bandwidth list; or

[0210] The bandwidth supported by the terminal is from the list of virtual bandwidths.

[0211] Optionally, the bandwidths supported by the terminal in the virtual bandwidth list include:

[0212] The bandwidth indicator is the virtual bandwidth indicated within the list of virtual bandwidths supported by the terminal; or

[0213] The terminal selects a virtual bandwidth from the list of virtual bandwidths supported by the terminal based on the bandwidth indication.

[0214] Optionally, the apparatus further includes a transmitting module, which is used for at least one of the following:

[0215] Report the list of channel bandwidths supported by the aforementioned terminal;

[0216] Report the list of virtual bandwidths supported by the terminal.

[0217] Optionally, the processing module 602 is further configured to determine whether to enable the power boost function based on the virtual bandwidth, wherein if the maximum channel bandwidth that the terminal can support corresponding to the virtual bandwidth is greater than N times the channel bandwidth actually used by the terminal, the actual transmit power of the terminal is allowed to be higher than the current power level of the terminal.

[0218] The aforementioned power back-off information determination device can improve the terminal's transmission performance.

[0219] The power back-off information determination device provided in this application embodiment can achieve... Figure 4 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0220] See Figure 7 When the bandwidth indicator is a network-side device or a component within a network-side device, the bandwidth indicator 700 includes:

[0221] The sending module 701 is used to send a bandwidth indication to the terminal, the bandwidth indication being used to indicate virtual bandwidth.

[0222] Optionally, the virtual bandwidth is the bandwidth to which at least one of the following radio frequency indicators applies:

[0223] In-band radiation limits, adjacent channel leakage ratio, radio frequency limits for spectral radiation templates, and radio frequency limits for spurious emissions.

[0224] Optionally, the virtual bandwidth includes:

[0225] The channel bandwidths supported by the terminal are those listed in the channel bandwidth list; or

[0226] The bandwidth supported by the terminal is from the list of virtual bandwidths.

[0227] Optionally, the device further includes a receiving module, the receiving module being used for at least one of the following:

[0228] The terminal-supported channel bandwidth list reported by the receiving terminal;

[0229] The receiving terminal reports a list of virtual bandwidths supported by the terminal.

[0230] The aforementioned bandwidth indicator can improve the terminal's transmission performance.

[0231] The power back-off information determination device provided in this application embodiment can achieve... Figure 5 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0232] like Figure 8 As shown, this application embodiment also provides a communication device 800, including a processor 801 and a memory 802. The memory 802 stores programs or instructions that can run on the processor 801. For example, when the communication device 800 is a terminal, the program or instructions executed by the processor 801 implement the various steps of the above-described power back-off information determination method embodiment and achieve the same technical effect. When the communication device 800 is a network-side device, the program or instructions executed by the processor 801 implement the various steps of the above-described power back-off information determination method embodiment and achieve the same technical effect. To avoid repetition, further details are omitted here.

[0233] This application embodiment also provides a terminal, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement, for example... Figure 4 The steps in the method embodiment shown are illustrated. This terminal embodiment corresponds to the above-described terminal-side method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this terminal embodiment and achieve the same technical effect. The terminal can be... Figure 6 The power back-off information determination device shown. Specifically, Figure 9 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0234] The terminal 900 includes, but is not limited to, at least some of the following components: radio frequency unit 901, network module 902, audio output unit 903, input unit 904, sensor 905, display unit 906, user input unit 907, interface unit 908, memory 909, and processor 910.

[0235] Those skilled in the art will understand that the terminal 900 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 910 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 9 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.

[0236] It should be understood that, in this embodiment, the input unit 904 may include a graphics processor 9041 and a microphone 9042. The graphics processor 9041 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 906 may include a display panel 9061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 907 includes at least one of a touch panel 9071 and other input devices 9072. The touch panel 9071 is also called a touch screen. The touch panel 9071 may include a touch detection device and a touch controller. Other input devices 9072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0237] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 901 can transmit it to the processor 910 for processing; in addition, the radio frequency unit 901 can send uplink data to the network-side device. Typically, the radio frequency unit 901 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0238] The memory 909 can be used to store software programs or instructions, as well as various data. The memory 909 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first 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 909 may include volatile memory or non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 909 in the embodiments of this application includes, but is not limited to, these and any other suitable types of memory.

[0239] Processor 910 may include one or more processing units; optionally, processor 910 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 910.

[0240] The radio frequency unit 901 is used to receive a bandwidth indication, which is used to indicate a virtual bandwidth.

[0241] Processor 910 is used to determine maximum power backoff (MPR) information based on the virtual bandwidth.

[0242] Optionally, the virtual bandwidth is the bandwidth to which at least one of the following radio frequency indicators applies:

[0243] In-band radiation limits, adjacent channel leakage ratio, radio frequency limits for spectral radiation templates, and radio frequency limits for spurious emissions.

[0244] Optionally, determining the MPR information based on the virtual bandwidth includes:

[0245] The maximum channel bandwidth that the terminal can support is determined based on the virtual bandwidth, and the MPR information is determined based on the maximum channel bandwidth.

[0246] Optionally, determining the MPR information based on the maximum channel bandwidth includes:

[0247] When the maximum channel bandwidth is greater than N times the actual channel bandwidth used by the terminal, the MPR information is determined based on the channel bandwidth N times the actual channel bandwidth used by the terminal, where N is a real number greater than 0, or N is related to the actual channel bandwidth used or the actual resource block (RB) configuration information.

[0248] Optionally, the MPR information includes at least one of the following:

[0249] The effective range of the internal RB, the effective range of the external RB, and the effective range of the edge RB.

[0250] Optionally, the maximum number of RBs corresponding to at least one of the effective range of the inner RB, the effective range of the outer RB, and the effective range of the edge RB includes:

[0251] The maximum number of RBs corresponding to the virtual bandwidth; or

[0252] The maximum number of RBs corresponding to the maximum channel bandwidth; or

[0253] When the maximum channel bandwidth is greater than N times the actual channel bandwidth used by the terminal, the maximum number of RBs corresponding to N times the channel bandwidth actually used by the terminal.

[0254] The maximum channel bandwidth is determined based on the virtual bandwidth, which determines the maximum channel bandwidth that the terminal can support.

[0255] Optionally, the starting position or lowest RB index corresponding to the effective range of the internal RB includes:

[0256] The starting position of the RB actually used by the terminal or the lowest RB index plus the offset corresponding to the maximum channel bandwidth.

[0257] Optionally, the offset corresponding to the maximum channel bandwidth includes:

[0258] The floor value of M times the number of RBs in the first channel bandwidth, where the number of RBs in the first channel bandwidth is equal to the maximum number of RBs corresponding to the second channel bandwidth minus the maximum number of RBs corresponding to the actual channel bandwidth used by the terminal, and M is a real number greater than 0.

[0259] The second channel bandwidth is the virtual bandwidth; or

[0260] The second channel bandwidth is less than or equal to the maximum channel bandwidth; or

[0261] When the maximum channel bandwidth is greater than N times the actual channel bandwidth used by the terminal, the second channel bandwidth is equal to N times the actual channel bandwidth used by the terminal.

[0262] Optionally, the virtual bandwidth includes:

[0263] The channel bandwidths supported by the terminal are those listed in the channel bandwidth list; or

[0264] The bandwidth supported by the terminal is from the list of virtual bandwidths.

[0265] Optionally, the bandwidths supported by the terminal in the virtual bandwidth list include:

[0266] The bandwidth indicator is the virtual bandwidth indicated within the list of virtual bandwidths supported by the terminal; or

[0267] The terminal selects a virtual bandwidth from the list of virtual bandwidths supported by the terminal based on the bandwidth indication.

[0268] Optionally, the radio frequency unit 901 is also used for at least one of the following:

[0269] The terminal reports the list of channel bandwidths supported by the terminal.

[0270] The terminal reports a list of virtual bandwidths it supports.

[0271] Optionally, the processor 910 is also used for

[0272] The power boost function is enabled based on the virtual bandwidth. If the maximum channel bandwidth that the terminal can support corresponding to the virtual bandwidth is greater than N times the channel bandwidth actually used by the terminal, the actual transmit power of the terminal is allowed to be higher than the current power level of the terminal. N is a real number greater than 0, or N is related to the actual channel bandwidth used or the actual RB configuration information.

[0273] The aforementioned terminals can improve the terminal's transmission performance.

[0274] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the power back-off information determination method embodiment and achieve the same or corresponding technical effects. To avoid repetition, it will not be described again here.

[0275] This application embodiment also provides a network-side device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement, for example... Figure 5 The steps of the method embodiment shown are illustrated. This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above-described method embodiments can be applied to this network-side device embodiment and can achieve the same technical effect.

[0276] Specifically, embodiments of this application also provide a network-side device, which can be... Figure 7 The power back-off information determination device shown. For example... Figure 10 As shown, the network-side device 1000 includes: an antenna 1001, a radio frequency (RF) device 1002, a baseband device 1003, a processor 1004, and a memory 1005. The antenna 1001 is connected to the RF device 1002. In the uplink direction, the RF device 1002 receives information through the antenna 1001 and transmits the received information to the baseband device 1003 for processing. In the downlink direction, the baseband device 1003 processes the information to be transmitted and sends it to the RF device 1002. The RF device 1002 processes the received information and transmits it through the antenna 1001.

[0277] The method executed by the network-side device in the above embodiments can be implemented in the baseband device 1003, which includes a baseband processor.

[0278] The baseband device 1003 may include, for example, at least one baseband board on which multiple chips are disposed, such as... Figure 10 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 1005 via a bus interface to call the program in the memory 1005 and execute the network device operation shown in the above method embodiment.

[0279] The network-side device may also include a network interface 1006, such as a Common Public Radio Interface (CPRI).

[0280] Specifically, the network-side device 1000 in this application embodiment further includes: instructions or programs stored in memory 1005 and executable on processor 1004, wherein processor 1004 calls the instructions or programs in memory 1005 to execute. Figure 7The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0281] Radio frequency device 1002 is used for network-side devices to send bandwidth indications to terminals, the bandwidth indications being used to indicate virtual bandwidth.

[0282] Optionally, the virtual bandwidth is the bandwidth to which at least one of the following radio frequency indicators applies:

[0283] In-band radiation limits, adjacent channel leakage ratio, radio frequency limits for spectral radiation templates, and radio frequency limits for spurious emissions.

[0284] Optionally, the virtual bandwidth includes:

[0285] The channel bandwidths supported by the terminal are those listed in the channel bandwidth list; or

[0286] The bandwidth supported by the terminal is from the list of virtual bandwidths.

[0287] Optionally, the radio frequency device 1002 is also used for at least one of the following:

[0288] The terminal-supported channel bandwidth list reported by the receiving terminal;

[0289] The receiving terminal reports a list of virtual bandwidths supported by the terminal.

[0290] The aforementioned network-side equipment can improve the terminal's transmission performance.

[0291] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the power back-off information determination method embodiment and achieve the same or corresponding technical effects. To avoid repetition, it will not be described again here.

[0292] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described power backoff information determination method or bandwidth indication method embodiments and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0293] 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. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0294] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above-described power back-off information determination method or bandwidth indication method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0295] 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.

[0296] This application also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the above-described power backoff information determination method or bandwidth indication method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0297] This application also provides a wireless communication system, including: a terminal and a network-side device. The terminal can be used to perform the steps of the power back-off information determination method provided in this application, and the network-side device can be used to perform the steps of the bandwidth indication method provided in this application.

[0298] 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.

[0299] From 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 computer software products plus necessary general-purpose hardware platforms, and of course, they can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes several instructions to cause the terminal or network-side device to execute the methods described in the various embodiments of this application.

[0300] 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 implementations under the guidance of this application without departing from the spirit and scope of the claims. All of these implementations are within the protection scope of this application.

Claims

1. A method for determining power back-off information, characterized in that, include: The terminal receives a bandwidth indication, which is used to indicate virtual bandwidth; The terminal determines the maximum power backoff (MPR) information based on the virtual bandwidth.

2. The method according to claim 1, characterized in that, The virtual bandwidth is the bandwidth to which at least one of the following radio frequency indicators applies: In-band radiation limits, adjacent channel leakage ratio, radio frequency limits for spectral radiation templates, and radio frequency limits for spurious emissions.

3. The method according to claim 1 or 2, characterized in that, The terminal determines MPR information based on the virtual bandwidth, including: The terminal determines the maximum channel bandwidth it can support based on the virtual bandwidth, and determines the MPR information based on the maximum channel bandwidth.

4. The method according to claim 3, characterized in that, The determination of MPR information based on the maximum channel bandwidth includes: When the maximum channel bandwidth is greater than N times the actual channel bandwidth used by the terminal, the MPR information is determined based on the channel bandwidth N times the actual channel bandwidth used by the terminal, where N is a real number greater than 0, or N is related to the actual channel bandwidth used or the actual resource block (RB) configuration information.

5. The method according to any one of claims 1 to 4, characterized in that, The MPR information includes at least one of the following: The effective range of the internal RB, the effective range of the external RB, and the effective range of the edge RB.

6. The method according to claim 5, characterized in that, The maximum number of RBs corresponding to at least one of the effective range of the inner RB, the effective range of the outer RB, and the effective range of the edge RB includes: The maximum number of RBs corresponding to the virtual bandwidth; or The maximum number of RBs corresponding to the maximum channel bandwidth; or When the maximum channel bandwidth is greater than N times the actual channel bandwidth used by the terminal, the maximum number of RBs corresponding to N times the channel bandwidth actually used by the terminal. The maximum channel bandwidth is determined based on the virtual bandwidth, which determines the maximum channel bandwidth that the terminal can support.

7. The method according to claim 5 or 6, characterized in that, The starting position or lowest RB index corresponding to the effective range of the internal RB includes: The starting position of the RB actually used by the terminal or the lowest RB index plus the offset corresponding to the maximum channel bandwidth.

8. The method according to claim 7, characterized in that, The offset corresponding to the maximum channel bandwidth includes: The floor value of M times the number of RBs in the first channel bandwidth, where the number of RBs in the first channel bandwidth is equal to the maximum number of RBs corresponding to the second channel bandwidth minus the maximum number of RBs corresponding to the actual channel bandwidth used by the terminal, and M is a real number greater than 0. The second channel bandwidth is the virtual bandwidth; or The second channel bandwidth is less than or equal to the maximum channel bandwidth; or When the maximum channel bandwidth is greater than N times the actual channel bandwidth used by the terminal, the second channel bandwidth is equal to N times the actual channel bandwidth used by the terminal.

9. The method according to any one of claims 1 to 8, characterized in that, The virtual bandwidth includes: The channel bandwidths supported by the terminal are those listed in the channel bandwidth list; or The bandwidth supported by the terminal is from the list of virtual bandwidths.

10. The method according to claim 9, characterized in that, The bandwidths supported by the terminal in the virtual bandwidth list include: The bandwidth indicator is the virtual bandwidth indicated within the list of virtual bandwidths supported by the terminal; or The terminal selects a virtual bandwidth from the list of virtual bandwidths supported by the terminal based on the bandwidth indication.

11. The method according to claim 9 or 10, characterized in that, The method further includes at least one of the following: The terminal reports the list of channel bandwidths supported by the terminal. The terminal reports a list of virtual bandwidths it supports.

12. The method according to any one of claims 1 to 11, characterized in that, The method further includes: The terminal determines whether to enable the power boost function based on the virtual bandwidth. Wherein, if the maximum channel bandwidth that the terminal can support corresponding to the virtual bandwidth is greater than N times the channel bandwidth actually used by the terminal, the actual transmit power of the terminal is allowed to be higher than the current power level of the terminal. N is a real number greater than 0, or N is related to the actual channel bandwidth used or the actual RB configuration information.

13. A bandwidth indication method, characterized in that, include: The network-side device sends a bandwidth indication to the terminal, which is used to indicate the virtual bandwidth.

14. The method according to claim 13, characterized in that, The virtual bandwidth is the bandwidth to which at least one of the following radio frequency indicators applies: In-band radiation limits, adjacent channel leakage ratio, radio frequency limits for spectral radiation templates, and radio frequency limits for spurious emissions.

15. The method according to claim 13 or 14, characterized in that, The virtual bandwidth includes: The channel bandwidths supported by the terminal are those listed in the channel bandwidth list; or The bandwidth supported by the terminal is from the list of virtual bandwidths.

16. The method according to claim 15, characterized in that, The method further includes at least one of the following: The network-side device receives the list of channel bandwidths supported by the terminal reported by the terminal; The network-side device receives a list of virtual bandwidths supported by the terminal reported by the terminal.

17. A power back-off information determination device, characterized in that, include: A receiving module is configured to receive a bandwidth indication, wherein the bandwidth indication is used to indicate virtual bandwidth; The processing module is used to determine the maximum power backoff (MPR) information based on the virtual bandwidth.

18. The apparatus according to claim 17, characterized in that, The processing module is used to determine the maximum channel bandwidth that the terminal can support based on the virtual bandwidth, and to determine MPR information based on the maximum channel bandwidth.

19. The apparatus according to claim 18, characterized in that, The determination of MPR information based on the maximum channel bandwidth includes: When the maximum channel bandwidth is greater than N times the actual channel bandwidth used by the terminal, the MPR information is determined based on the channel bandwidth N times the actual channel bandwidth used by the terminal, where N is a real number greater than 0, or N is related to the actual channel bandwidth used or the actual resource block (RB) configuration information.

20. The apparatus according to any one of claims 17 to 19, characterized in that, The MPR information includes at least one of the following: The effective range of the internal RB, the effective range of the external RB, and the effective range of the edge RB.

21. The apparatus according to claim 20, characterized in that, The maximum number of RBs corresponding to at least one of the effective range of the inner RB, the effective range of the outer RB, and the effective range of the edge RB includes: The maximum number of RBs corresponding to the virtual bandwidth; or The maximum number of RBs corresponding to the maximum channel bandwidth; or When the maximum channel bandwidth is greater than N times the actual channel bandwidth used by the terminal, the maximum number of RBs corresponding to N times the channel bandwidth actually used by the terminal. The maximum channel bandwidth is determined based on the virtual bandwidth, which determines the maximum channel bandwidth that the terminal can support.

22. The apparatus according to any one of claims 17 to 21, characterized in that, The processing module is further configured to determine whether to enable the power boost function based on the virtual bandwidth, wherein if the maximum channel bandwidth that the terminal can support corresponding to the virtual bandwidth is greater than N times the channel bandwidth actually used by the terminal, the actual transmit power of the terminal is allowed to be higher than the current power level of the terminal.

23. A bandwidth indicating device, characterized in that, include: The sending module is used to send a bandwidth indication to the terminal, the bandwidth indication being used to indicate virtual bandwidth.

24. The apparatus according to claim 23, characterized in that, The apparatus further includes a receiving module, the receiving module being used for at least one of the following: The terminal-supported channel bandwidth list reported by the receiving terminal; The receiving terminal reports a list of virtual bandwidths supported by the terminal.

25. A terminal, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the power back-off information determination method as described in any one of claims 1 to 12.

26. A network-side device, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the bandwidth indication method as described in any one of claims 13 to 16.

27. 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 power back-off information determination method as described in any one of claims 1 to 12, or the steps of the bandwidth indication method as described in any one of claims 13 to 16.

28. A computer program product, characterized in that, The computer program product is stored in a storage medium and is executed by at least one processor to implement the steps of the power back-off information determination method as claimed in any one of claims 1 to 12, or the steps of the bandwidth indication method as claimed in any one of claims 13 to 16.

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