Communication method and related apparatus

Abstract

Provided in the embodiments of the present application are a communication method and a related apparatus. The method is applied to a terminal device having dual power amplifiers and dual local oscillators. The method comprises: on the basis of a first transmission resource, determining a first maximum power reduction (MPR), wherein the first transmission resource is a transmission resource corresponding to a first component carrier (CC); on the basis of the first MPR, determining a first transmitting power; on the basis of the first transmitting power, sending on the first transmission resource a first signal carried by the first CC; on the basis of a second transmission resource, determining a second MPR, wherein the second transmission resource is a transmission resource corresponding to a second CC; on the basis of the second MPR, determining a second transmitting power; and on the basis of the second transmitting power, sending on the second transmission resource a second signal carried by the second CC. The opportunities for signals carried by different CCs to obtain power gains are increased.

Description

A communication method and related apparatus

[0001] This application claims priority to Chinese Patent Application No. 202411030455.8, filed on July 29, 2024, entitled "A Communication Method and Related Device", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of communication technology, and in particular to a communication method and related apparatus. Background Technology

[0003] With the development of communication technology, carrier aggregation (CA) has become a common communication technique. Terminal devices supporting carrier aggregation can simultaneously receive or transmit multiple carriers, enabling data transmission on these carriers and thus improving data transmission rates. In carrier aggregation, component carriers (CCs) are divided into primary carrier components (PCCs) and secondary carrier components (SCCs). PCCs are carriers associated with the primary cell, while SCCs are carriers associated with the secondary cell. A primary cell refers to a cell operating in the primary frequency band, and a secondary cell refers to a cell operating in the secondary frequency band. In uplink carrier (UL CA) scenarios for terminal devices, the number of carriers typically supported is two, meaning the terminal device supports the transmission of two CCs in uplink CA scenarios.

[0004] In wireless communication networks, the transmit power of a terminal device is a key factor affecting the data it sends to network devices. The transmit power of a terminal device primarily depends on the power amplifier (PA). The PA's role is to convert low-power signals into high-power signals, thereby overcoming signal attenuation between the terminal device and the network device, ensuring that the network device receives a sufficiently strong signal. This transmit power directly affects communication quality; for example, low transmit power from the terminal device may lead to communication instability. During the PA's power amplification process, the PA needs to amplify the signal based on the oscillation signal generated by the local oscillator (LO). Therefore, in terminal devices, the aforementioned radio frequency (RF) architecture can also be called a PA-LO architecture.

[0005] Currently, common RF architectures in terminal devices include: single PA and single LO, or dual PA and dual LO. The single PA and single LO architecture refers to one PA transmitting two CCs, while the dual PA and dual LO architecture refers to each PA independently transmitting one CC, with each of the two PAs transmitting two CCs respectively. The current protocol defines a capability description for the above RF architecture in a terminal device: for a single-band combination with UL CA, this field indicates that Frequency Range (FR) 1 supports dual PA and dual LO frequencies, or FR2 supports dual LO frequencies. If not present in such band combinations, the UE supports single PA and single LO frequencies for all ULs for FR1, or single LO frequencies for all ULs for FR2. For other band combinations, this field is not applicable.

[0006] The transmit power of terminal equipment is primarily limited by uplink RF specifications, which are designed to ensure the signal quality of the transmitted signal and keep interference to other devices within a reasonable range. However, with the development of communication technology, terminal equipment needs to flexibly adjust its transmit power. In determining the transmit power, the terminal equipment first needs to determine the maximum power reduction (MPR), and then determine the transmit power based on the MPR. Therefore, for terminal equipment with a dual-PA, dual-LO architecture, determining the MPR becomes a pressing issue. Summary of the Invention

[0007] This application proposes a communication method and related apparatus, in which a terminal device can independently determine the maximum power back-off of the transmission resource corresponding to each component carrier. This allows the terminal device to determine the transmit power of the signal carried by each component carrier based on the independent maximum power back-off, increasing the chances of power gain for the signals carried by different component carriers.

[0008] In a first aspect, embodiments of this application propose a communication method applied to a terminal device. For example, the method may be executed by the terminal device itself. The terminal device may be a device or apparatus with a chip, or a device or apparatus with integrated circuitry, or a chip, chip system, module, control unit, circuit, or processor in the aforementioned device or apparatus; specific details are not limited in this application.

[0009] The method includes: determining a first maximum power back-off (MPR) based on a first transmission resource, wherein the first transmission resource is the transmission resource corresponding to a first component carrier (CC), the first transmission resource includes one or more resource blocks (RBs), and the first MPR is used to indicate the power back-off value of a first signal carried by the first CC; and determining a second MPR based on a second transmission resource, wherein the second transmission resource is the transmission resource corresponding to a second CC, the second transmission resource includes one or more RBs, and the second MPR is used to indicate the power back-off value of a second signal carried by the second CC.

[0010] In one example, the frequency of the first CC is lower than the frequency of the second CC.

[0011] In one example, the first CC is continuous with the second CC in the frequency domain. For instance, the first CC and the second CC are in the same band and are continuous in the frequency domain, and the first CC and the second CC belong to the same carrier aggregation (CA).

[0012] In another example, the first CC is discontinuous with the second CC in the frequency domain. For example, the first CC and the second CC are in the same frequency band, but are discontinuous in the frequency domain, and both belong to the same carrier aggregation CA. In yet another example, the first CC and the second CC belong to the same carrier aggregation CA. For example, the first CC and the second CC belong to the same carrier aggregation CA, but belong to different frequency bands. Another example: the first CC and the second CC belong to the same carrier aggregation CA, and both belong to the same frequency band.

[0013] In another example, the first MPR is different from the second MPR.

[0014] In the above technical solution, for two independent component carriers, the terminal device can independently determine the maximum power backoff of the transmission resource corresponding to each component carrier. This allows the terminal device to determine the transmit power of the signal carried by each component carrier based on the independent maximum power backoff, enabling different component carriers to use different transmit powers and increasing the chances of power gain for the signals carried by different component carriers.

[0015] In conjunction with the first aspect, in one possible implementation of the first aspect, the method further includes: determining a first transmit power based on a first MPR; transmitting a first signal carried by a first CC on a first transmission resource based on the first transmit power; determining a second transmit power based on a second MPR; and transmitting a second signal carried by a second CC on a second transmission resource based on the second transmit power.

[0016] In one example, the first CC is transmitted via a first power amplifier PA and a first local oscillator LO;

[0017] The second CC is transmitted through the second PA and the second LO. The second PA is independent of the first PA, and the second LO is independent of the first LO.

[0018] In the above technical solution, since the first MPR corresponding to the first transmission resource and the second MPR corresponding to the second transmission resource are independent of each other, the first MPR and the second MPR are different, and consequently the first transmit power and the second transmit power are different, so as to flexibly adapt to different service requirements. Compared with the current method of determining MPR, the terminal device has a greater probability of determining the transmission mode as internal RB allocation on different component carriers, and therefore has a greater probability of determining a lower MPR, increasing the chance of the terminal device obtaining power gain.

[0019] In conjunction with the first aspect, in one possible implementation of the first aspect, determining the first MPR based on the first transmission resource includes: determining the first transmission mode corresponding to the first transmission resource based on the first transmission resource and the first CC; and determining the first MPR based on the first transmission mode corresponding to the first transmission resource.

[0020] In this embodiment, the transmission mode may include: inner RB allocations, outer RB allocations, or edge RB allocations. For ease of distinction, the first transmission mode includes: a first inner RB allocation, a first outer RB allocation, or a first edge RB allocation. Since different transmission modes correspond to different MPRs, the corresponding first MPR can be determined after determining the first transmission mode. For example, if the first transmission mode is determined to be a first inner RB allocation, the first MPR is determined based on the first inner RB allocation. Similarly, if the first transmission mode is determined to be a first outer RB allocation, the first MPR is determined based on the first outer RB allocation. And again, if the first transmission mode is determined to be a first edge RB allocation, the first MPR is determined based on the first edge RB allocation.

[0021] In conjunction with the first aspect, in one possible implementation of the first aspect, determining the first transmission mode corresponding to the first transmission resource based on the first transmission resource and the first CC includes: determining the first transmission mode based on the first consecutive RB number, the first maximum RB number, the first starting RB index, and / or, a first rule, wherein the first consecutive RB number is the number of RBs continuously allocated to the first transmission resource, the first maximum RB number is the maximum number of RBs carried by the first CC, the first starting RB index is the index of the starting RB of the first transmission resource, and the first rule includes: a first boundary value and a second boundary value, wherein the first boundary value is determined based on the first consecutive RB number, and the second boundary value is determined based on the first consecutive RB number and the first maximum RB number.

[0022] In conjunction with the first aspect, in one possible implementation of the first aspect, the first rule includes at least one of the following conditions:

[0023] Condition 1: The first starting RB index is greater than or equal to the first boundary value, or the first starting RB index is less than or equal to the second boundary value. The first boundary value is 1 / 2 of the number of first consecutive RBs rounded down, and the second boundary value is the difference between the number of first maximum RBs and the number of first consecutive RBs. The number of first consecutive RBs is less than or equal to 2 / 3 of the number of first maximum RBs rounded up.

[0024] Condition 2: The starting RB of the first transmission resource belongs to the first RB carried by the first CC or the second RB carried by the first CC (for example, the first RB carried by the first CC is RB0, and the second RB carried by the first CC is RB1).

[0025] When condition 1 is met, the first transmission mode is determined to be the first internal RB allocation;

[0026] When condition 2 is met, the first transmission mode is determined to be the first boundary RB allocation;

[0027] If conditions 1 and 2 are not met, the first transmission mode is determined to be the first external RB allocation.

[0028] In conjunction with the first aspect, in one possible implementation of the first aspect, condition 1 satisfies: RB start,low,1 ≤RB start,1 ≤RB start,high,1 , RB start,high,1 =N RB,1 -L CRB,1 ,

[0029] Wherein, the first boundary value is RB start,low,1 The second boundary value is RB start,high,1 The first starting RB index is RB start,1 The first maximum number of RBs is N RB,1 The number of consecutive RBs in the first sequence is L. CRB,1 .

[0030] In conjunction with the first aspect, in one possible implementation of the first aspect, determining the second MPR based on the second transmission resource includes: determining the second transmission mode corresponding to the second transmission resource based on the second transmission resource and the second CC; and determining the second MPR based on the second transmission mode corresponding to the second transmission resource.

[0031] The second transmission mode includes: second internal RB allocation, second external RB allocation, or second edge RB allocation.

[0032] In conjunction with the first aspect, in one possible implementation of the first aspect, determining the second transmission mode corresponding to the second transmission resource based on the second transmission resource and the second CC includes:

[0033] The second transmission mode is determined based on the second consecutive RB number, the second maximum RB number, the second starting RB index, and / or, the second rule, wherein...

[0034] The second consecutive RB quantity is the number of RBs consecutively allocated to the second transmission resource.

[0035] The second maximum number of RBs is the maximum number of RBs carried by the second CC.

[0036] The second starting RB index is the index of the starting RB of the second transmission resource.

[0037] The second rule includes: the third boundary value and the fourth boundary value.

[0038] The third boundary value is determined based on the number of second consecutive RBs.

[0039] The fourth boundary value is determined based on the number of the second consecutive RBs and the second maximum RB.

[0040] In conjunction with the first aspect, in one possible implementation of the first aspect, the second rule includes at least one of the following conditions:

[0041] Condition 3: The second starting RB index is greater than or equal to the third boundary value, or the second starting RB index is less than or equal to the fourth boundary value, the third boundary value is equal to 0, the fourth boundary value is equal to the second maximum RB quantity minus the second consecutive RB quantity minus 1 / 2 of the second consecutive RB quantity rounded down, and the second consecutive RB quantity is less than or equal to 2 / 3 times the second maximum RB quantity rounded up.

[0042] Condition 4: The sum of the second starting RB index and the number of the second consecutive RBs is greater than or equal to the difference between the second maximum RB number and 2.

[0043] When condition 3 is met, the second transmission mode is determined to be the second internal RB allocation;

[0044] When condition 4 is met, the second transmission mode is determined to be the second boundary RB allocation;

[0045] If conditions 3 and 4 are not met, the second transmission mode is determined to be the second external RB allocation.

[0046] In conjunction with the first aspect, in one possible implementation of the first aspect, condition 3 is satisfied: RB start,low,2 ≤RB start,2 ≤RB start,high,2 RB start,low,2 =0,

[0047] Wherein, the third boundary value is RB start,low,2 The fourth boundary value is RB start,high,2 The second starting RB index is RB start,2 The second largest number of RBs is N. RB,2 The number of consecutive RBs in the second sequence is L. CRB,2 .

[0048] Secondly, this application provides a communication device, which is a terminal device, comprising a transceiver module and a processing module. In this second aspect, the components of the communication device can also be used to execute the steps performed in various possible implementations of the first aspect and achieve the corresponding technical effects; details of these can be found in the first aspect, and will not be repeated here.

[0049] Thirdly, this application provides a communication device including at least one processor coupled to a memory; the memory is used to store a program or instructions; the at least one processor is used to execute the program or instructions to enable the device to implement the method described in any possible implementation of any of the first aspects. Optionally, the communication device may include the memory.

[0050] Fourthly, this application provides a communication device including at least one logic circuit and an input / output interface; the logic circuit is used to perform the method described in any possible implementation of any of the first aspects described above.

[0051] Fifthly, this application provides a communication system that includes the aforementioned terminal equipment.

[0052] In a sixth aspect, this application provides a computer-readable storage medium for storing one or more computer-executable instructions that, when executed by a processor, perform the method as described in any possible implementation of any of the first aspects above.

[0053] In a seventh aspect, this application provides a computer program product (or computer program) that, when executed by a processor, performs the method described in any possible implementation of any of the first aspects described above.

[0054] In an eighth aspect, this application provides a chip or chip system including at least one processor for supporting a communication device in implementing the method described in any possible implementation of any of the first aspects. For example, the chip may be a baseband chip, a modem chip, a system-on-chip (SoC) chip containing a modem core, a system-in-package (SIP) chip, or a communication module, etc.

[0055] In one possible design, the chip or chip system may further include a memory for storing program instructions and data necessary for the communication device. The chip system may be composed of chips or may include chips and other discrete devices. Optionally, the chip system may also include interface circuitry that provides program instructions and / or data to the at least one processor.

[0056] The technical effects of any of the design methods in aspects two through eight can be found in the technical effects of the different design methods in aspect one above, and will not be repeated here. Attached Figure Description

[0057] Figure 1 is a schematic diagram of a single-carrier structure;

[0058] Figure 2a is a schematic diagram of in-band carrier aggregation;

[0059] Figure 2b shows another schematic diagram of in-band carrier aggregation;

[0060] Figure 2c is a schematic diagram of inter-band carrier aggregation;

[0061] Figure 3a is a schematic diagram of RB allocation in a single-carrier scenario;

[0062] Figure 3b is a schematic diagram of RB allocation in a carrier aggregation continuous allocation scenario;

[0063] Figure 3c is a schematic diagram of RB allocation in a carrier aggregation discontinuous allocation scenario;

[0064] Figure 4a is a schematic diagram of a single PA and single LO architecture;

[0065] Figure 4b is a schematic diagram of a dual PA dual LO architecture;

[0066] Figure 5 is a schematic diagram of the architecture of the communication system 1000 used in the embodiments of this application;

[0067] Figure 6 is a flowchart illustrating one embodiment of the communication method in this application.

[0068] Figure 7 is a schematic diagram of the first CC and the second CC in an embodiment of this application;

[0069] Figure 8 is another schematic diagram of the first CC and the second CC in an embodiment of this application;

[0070] Figures 9a to 9i are schematic diagrams of a transmission mode in an embodiment of this application;

[0071] Figures 10a to 10i are schematic diagrams of a transmission mode in an embodiment of this application;

[0072] Figure 11 is a schematic diagram of a communication device according to an embodiment of this application;

[0073] Figure 12 is another structural schematic diagram of the communication device according to an embodiment of this application;

[0074] Figure 13 is another structural schematic diagram of the communication device according to an embodiment of this application;

[0075] Figure 14 is a schematic diagram of a terminal device in an embodiment of this application. Detailed Implementation

[0076] References to "one embodiment" or "some embodiments" as described in this application mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0077] In the description of this application, unless otherwise stated, " / " means "or". For example, A / B can mean A or B. "And / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Furthermore, "at least one" means one or more, and "multiple" means two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or multiple items. For example, at least one of a, b, or c can represent: a, b, c, a and b, a and c, b and c, or a and b and c. Where a, b, and c can be single or multiple.

[0078] First, some terms used in the embodiments of this application will be explained to facilitate understanding by those skilled in the art.

[0079] (1) Configuration and Pre-configuration: In this application, both configuration and pre-configuration are used. Configuration refers to the network device and / or server sending configuration information or parameter values ​​to the terminal via messages or signaling, so that the terminal can determine communication parameters or resources for transmission based on these values ​​or information. Pre-configuration is similar to configuration; it can be parameter information or parameter values ​​pre-negotiated between the network device and / or server and the terminal device, or parameter information or parameter values ​​specified by standard protocols for use by the base station / network device or terminal device, or parameter information or parameter values ​​pre-stored in the base station and / or server or terminal device. This application does not limit this.

[0080] Furthermore, these values ​​and parameters can be changed or updated.

[0081] (2) The terms "system" and "network" in the embodiments of this application can be used interchangeably. "Multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, or B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the related objects before and after are in an "or" relationship. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, "at least one of A, B and C" includes A, B, C, AB, AC, BC or ABC. And, unless otherwise specified, the ordinal numbers such as "first" and "second" mentioned in the embodiments of this application are used to distinguish multiple objects and are not used to limit the order, sequence, priority or importance of multiple objects.

[0082] (3) In the embodiments of this application, "send" and "receive" indicate the direction of signal transmission. For example, "send information to XX" can be understood as the destination of the information being XX, which may include sending directly through the air interface or sending indirectly through the air interface by other units or modules. "Receive information from YY" can be understood as the source of the information being YY, which may include receiving directly from YY through the air interface or receiving indirectly from YY through the air interface by other units or modules. "Send" can also be understood as the "output" of the chip interface, and "receive" can also be understood as the "input" of the chip interface.

[0083] In other words, sending and receiving can occur between devices, such as between network devices and terminal devices, or within a device, such as between components, modules, chips, software modules, or hardware modules within the device via buses, wiring, or interfaces.

[0084] It is understandable that information may undergo necessary processing, such as encoding and modulation, between the source and destination, but the destination can understand the valid information from the source. Similar statements in this application can be interpreted in a similar way and will not be elaborated further.

[0085] (4) In the embodiments of this application, "instruction" may include direct instruction and indirect instruction, as well as explicit instruction and implicit instruction. The information indicated by a certain piece of information (as described below, the instruction information) is called the information to be instructed. In the specific implementation process, there are many ways to indicate the information to be instructed, such as, but not limited to, directly indicating the information to be instructed, such as the information to be instructed itself or its index. It can also indirectly indicate the information to be instructed by indicating other information, where there is an association between the other information and the information to be instructed; or it can only indicate a part of the information to be instructed, while the other parts of the information to be instructed are known or pre-agreed upon. For example, the instruction can be implemented by using a pre-agreed (e.g., protocol predefined) arrangement order of various information, thereby reducing the instruction overhead to a certain extent. This application does not limit the specific method of instruction. It is understood that for the sender of the instruction information, the instruction information can be used to indicate the information to be instructed; for the receiver of the instruction information, the instruction information can be used to determine the information to be instructed.

[0086] (5) Carrier aggregation (CA).

[0087] A carrier is used to carry signals. Taking a terminal device as an example, the terminal device can transmit signals within a carrier. For easier understanding, please refer to Figure 1, which is a schematic diagram of a single carrier structure. A carrier specifically includes a guard band and a transmission bandwidth. The guard band refers to the bandwidth reserved on both sides of the carrier in the frequency domain to prevent spectrum leakage. The function of the guard band is to reduce interference between the carrier and adjacent channels. The transmission bandwidth refers to the actual bandwidth occupied by the carrier, that is, the frequency range of the signal carried by the carrier. The smallest unit of transmission bandwidth is a resource block (RB). The maximum number of RBs supported by the carrier (or the maximum number of RBs, NRB) is determined by the channel bandwidth. The terminal device can transmit signals in any RB within the transmission bandwidth. It should be noted that the guard bands on both sides of the transmission bandwidth can be asymmetrical. For example, the guard band on one side of the transmission bandwidth occupies 2 RBs, while the guard band on the other side occupies 0 RBs.

[0088] Carrier aggregation refers to combining carriers in the same or different frequency bands as a single carrier to increase bandwidth and thus improve the user's peak data rate. Terminal devices that support carrier aggregation can access multiple carriers, allowing them to transmit uplink or downlink data on these carriers, thereby increasing data transfer rates. Based on the frequency band of the carriers, carrier aggregation can be divided into intra-band carrier aggregation (intra-band CA) and inter-band carrier aggregation (inter-band CA), which will be explained below.

[0089] Intra-band carrier aggregation refers to users transmitting uplink and downlink data on multiple carriers within the same frequency band. Please refer to Figures 2a and 2b. Figure 2a is a schematic diagram of one type of intra-band carrier aggregation, and Figure 2b is another schematic diagram. Figure 2a illustrates contiguous intra-band carrier aggregation (CA), while Figure 2b illustrates non-contiguous intra-band carrier aggregation (CA).

[0090] Inter-band carrier aggregation refers to the uplink and downlink data transmission between users on multiple carriers in different frequency bands. Please refer to Figure 2c, which is a schematic diagram of inter-band carrier aggregation.

[0091] Furthermore, in carrier aggregation, a component carrier (CC) refers to each carrier participating in the aggregation. Component carriers can be divided into primary carrier components (PCCs) and secondary carrier components (SCCs). The PCC is connected to the primary cell (PCell), and the SCC is connected to the secondary cell (SCell). The primary cell operates in the primary frequency band, while the secondary cell operates in the secondary frequency band. Secondary cells can be configured to provide additional radio resources.

[0092] Carrier aggregation has three states: PCC is configured but SCC is not configured; SCC is configured but not activated; and SCC is configured and activated.

[0093] (6) Maximum Power Back-Off (MPR).

[0094] In wireless communication networks, the transmit power of a terminal device is a key factor affecting the data it sends to network devices. The transmit power of a terminal device primarily depends on the power amplifier (PA). The PA's function is to convert low-power signals into high-power signals. The radio frequency (RF) signal generated by the modulation oscillation circuit in the terminal device has relatively low power; it needs to be amplified by the power amplifier to obtain sufficient RF power before being fed to the antenna for radiation. Therefore, transmit power directly affects communication quality; for example, low transmit power from the terminal device may lead to communication instability.

[0095] The transmit power of a terminal device is primarily limited by its uplink radio frequency (RF) specifications, which are designed to ensure that the signal quality of the terminal device's transmitted signal and the interference it causes to other devices are within a reasonable level. In this embodiment, the uplink direction refers to the direction from the terminal device to the network device, and the corresponding downlink direction refers to the direction from the network device to the terminal device.

[0096] The core components of a power amplifier (PA) are semiconductor devices such as transistors, thus PAs exhibit nonlinear characteristics. Considering the severe nonlinearity of PAs at high transmit power, which may fail to meet RF specifications, the maximum transmit power of the terminal device can be backed up. For example, the maximum transmit power of a terminal device is determined by the maximum power back-up (MPR). One factor affecting MPR is the redundancy block (RB) allocation. RB allocation can also be called: RB allocation mode, RB allocation scheme, or the transmission mode corresponding to RB allocation, or the transmission mode corresponding to the RB allocation mode. RB allocation refers to the relative positional relationship between the transmission resources of the terminal device and the RBs carried by the carrier, or the relative positional relationship between the RBs actually allocated to the transmission resources and the maximum number of RBs theoretically borne by the carrier. The transmission resources are frequency domain resources, specifically including the starting position of the RBs (or the RB position indicated by the starting RB index, or simply the starting RB index) and the number of consecutively allocated RBs (or the number of consecutive RBs included in the scheduling resource, or simply the number of consecutive RBs). Therefore, RB allocation refers to the relative positional relationship between the RBs of the transmission resources and the reference bandwidth. Specifically, RB allocation includes: internal RB allocation, external RB allocation, and edge RB allocation.

[0097] Taking a single-carrier scenario as an example, please refer to Figure 3a, which is a schematic diagram of RB allocation in a single-carrier scenario. Internal RB allocation: The starting RB index (RBStart) and the number of consecutive RBs (LCRB) of the transmission resources must meet the following conditions: RB Start,Low ≤RB Start ≤RB Start,High L CRB ≤ceil(N RB / 2);

[0098] Among them RB Start,Low =max(1,floor(L) CRB / 2)), RB Start,High =N RB –RB Start,Low –L CRB N RB The maximum number of RBs carried by this carrier, where ceil is greater than or equal to N. RB The rounding down of / 2. The number of consecutive RBs in a transmission resource refers to the number of consecutively allocated RBs in that transmission resource, and the maximum number of RBs in a component carrier refers to the maximum number of RBs that can be configured in that component carrier.

[0099] Taking a single-carrier scenario as an example, edge RB allocation means that the starting RB of the transmission resource belongs to the first or second RB carried by the carrier, or the starting RB of the transmission resource coincides with the first RB (RB0) or the second RB (RB1) carried by the carrier.

[0100] If an RB allocation is neither an internal RB allocation nor an edge RB allocation, then the allocation of that RB is an external RB allocation.

[0101] Carrier aggregation scenarios, also known as multi-carrier scenarios, can be further divided into continuous carrier aggregation allocation scenarios and discontinuous carrier aggregation allocation scenarios. These will be explained separately below.

[0102] Regarding the continuous allocation scenario for carrier aggregation, continuous allocation is defined as satisfying the following three conditions: 1) L CRB1 =0; or, 2), L CRB2 =0; or 3), L CRB1 ≠0, L CRB2 ≠0, RB Start1 +L CRB1 =N RB1 RB Start2 =0. Where, L CRB1 This refers to the number of consecutive red-base blocks (RBs) of transmission resource 1 carried on component carrier 1 (CC1), L CRB2 This refers to the number of consecutive red-base blocks (RBs) in transmission resource 2 carried on component carrier 2 (CC2). Start1 This refers to the starting RB index of transmission resource 1, N. RB1 This refers to the maximum number of RBs in component carrier 1. Start2This refers to the starting RB index of transmission resource 2. Specifically, case 1) refers to component carrier 2 being active and component carrier 1 not being active, with data being transmitted on component carrier 2; case 2) refers to component carrier 1 being active and component carrier 2 not being active, with data being transmitted on component carrier 1; and case 3) refers to both component carrier 1 and component carrier 2 being active, with data being transmitted continuously on both component carrier 1 and component carrier 2, and there being no idle RB between component carrier 1 and component carrier 2 in the frequency domain.

[0103] Figure 3b illustrates RB allocation in a carrier aggregation continuous allocation scenario. It uses component carrier 1 (CC1) and component carrier 2 (CC2) as examples, where the frequency of CC1 is lower than the frequency of CC2. Transmission resources meeting the following conditions are considered internal RB allocations:

[0104] RB Start,Low ≤RB Start_CA ≤RB Start,High And, N RB_alloc ≤ceil(N RB,agg / 2),

[0105] Among them: RB Start,Low =max(1,floor(N) RB_alloc / 2)), RB Start,High =N RB,agg –RB Start,Low –N RB,alloc N RB_alloc =L CRB1 ·2^μ1+L CRB2 ·2^μ2, N RB,agg =N RB1 ·2^μ1+N RB2 ·2^μ2; If L CRB1 =0,RB Start_CA =N RB1 ·2^μ1+RB Start2 ·2^μ2, if L CRB1 >0,RB Start_CA =RB Start1 ·2^μ1,

[0106] Among them, L CRB1 L represents the number of consecutive RBs (or the number of consecutive RBs of the transmission resources within CC1 in the frequency domain) of the transmission resources corresponding to CC1. CRB2 N represents the number of consecutive red-base blocks (RBs) of the transmission resources corresponding to CC2 (or the number of consecutive RBs of the transmission resources within CC2 in the frequency domain). RB1 N represents the maximum number of RBs in CC1. RB2This represents the maximum number of RBs in CC2. Start_CA This is the index of the starting RB of the transmission resource (or the RB index at which the transmission resource was first sent). μ1 and μ2 are the subcarrier spacing types (Numerology) of CC1 and CC2, respectively, and μ1 and μ2 are related to the configured subcarrier spacing. N RB_alloc N is the sum of the RB actually allocated to CC1 and the RB actually allocated to CC2. RB,agg This is the sum of the bandwidths of CC1 and CC2.

[0107] Regarding the discontinuous allocation scenario in carrier aggregation, the definition of discontinuous allocation is as follows: both component carrier 1 and component carrier 2 are active to transmit data, and there is an idle RB between component carrier 1 and component carrier 2 in the frequency domain. The RB allocation in the discontinuous allocation scenario of carrier aggregation is shown in Figure 3c, which is a schematic diagram of one RB allocation in the discontinuous allocation scenario of carrier aggregation.

[0108] (7) Radio frequency (RF) architecture for uplink carrier aggregation of terminal equipment.

[0109] Taking a terminal device as an example, the uplink CA of a terminal device typically supports two component carriers, namely one PCC and one SCC. Specifically, there are two common RF architectures: a single power amplifier (PA) and a single local oscillator (LO) architecture, or a dual PA and dual LO architecture.

[0110] The single PA single LO architecture refers to a set of PA and LO that transmit two CCs. The LO is used to provide a signal of a specific frequency, and the PA is used to transmit the CCs. For example, as shown in Figure 4a, which is a schematic diagram of a single PA single LO architecture, the terminal device includes a first entity, which includes a first PA and a first LO. This first entity is used to transmit the first CC and the second CC.

[0111] The dual-PA dual-LO architecture refers to a terminal device comprising two independent PA and LO sets, as shown in Figure 4b. Figure 4b is a schematic diagram of a dual-PA dual-LO architecture. This terminal device includes a first entity and a second entity. The first entity includes a first PA and a first LO, and the second entity includes a second PA and a second LO. The first entity is used to transmit the first CC, and the second entity is used to transmit the second CC. The reason for introducing the dual-PA dual-LO architecture is that when the bandwidth of carrier aggregation is large, one PA cannot support it, therefore two PAs are needed to support the carrier. For a terminal device with a dual-PA dual-LO architecture, the following definition applies: For a single-band combination with uplink (UL) CA, this field indicates that Frequency Range (FR) 1 supports dual PA and dual LO frequencies, or FR2 supports dual LO frequencies. If not present in such band combinations, the UE supports single PA and single LO frequencies for all ULs for FR1, or single LO frequencies for all ULs for FR2. For other band combinations, this field is not applicable.

[0112] With the development of communication technology, terminal equipment needs to flexibly adjust its transmit power (transmit power can also be called transmission power, which is not limited in this application embodiment). In determining the transmit power, the terminal equipment needs to first determine the MPR, and then determine the transmit power based on the MPR. For scenarios with two component carriers, the current protocol stipulates that the two component carriers can only use the same RB allocation. For example, if the RB allocation of CC1 is an internal RB allocation, then the RB allocation of CC2 is also an internal RB allocation. Or, if the RB allocation of CC1 is an external RB allocation, then the RB allocation of CC2 is also an external RB allocation. In other words, the two CCs can only use the same MPR.

[0113] The applicant's research found that for terminal devices with a dual-PA, dual-LO architecture, each PA-LO group transmits CC independently, so the two CCs transmitted by the terminal device do not interfere with each other. Therefore, in terminal devices with a dual-PA, dual-LO architecture, the current protocol's requirement to use the same MPR for transmitting two CCs is unreasonable. Determining the MPR for terminal devices with a dual-PA, dual-LO architecture has become an urgent problem to be solved.

[0114] Based on this, embodiments of this application propose a communication method and related apparatus. The method includes: determining a first maximum power back-off (MPR) based on a first transmission resource, wherein the first transmission resource is the transmission resource corresponding to a first component carrier (CC), and the first transmission resource includes one or more resource blocks (RBs). The first MPR is used to indicate the power back-off value of a first signal carried by the first CC. The method also includes determining a second MPR based on a second transmission resource, wherein the second transmission resource is the transmission resource corresponding to a second CC, and the second transmission resource includes one or more RBs. The second MPR is used to indicate the power back-off value of a second signal carried by the second CC. For two independent component carriers, the terminal device can independently determine the maximum power back-off of the transmission resource corresponding to each component carrier. This allows the terminal device to determine the transmit power of the signal carried by each component carrier based on the independent maximum power back-off, enabling different component carriers to use different transmit powers and increasing the chance of power gain for the signals carried by different component carriers.

[0115] The embodiments of this application will now be described in conjunction with the accompanying drawings.

[0116] First, the communication system to which the embodiments of this application are applicable is introduced. This application can be applied to long-term evolution (LTE) systems, new radio (NR) systems, or other communication systems, such as future communication systems. These systems include network devices and terminal devices, with the network device acting as a configuration information sending entity and the terminal device acting as a configuration information receiving entity. Specifically, in this communication system, an entity sends configuration information to another entity and sends data to or receives data sent by another entity; another entity receives the configuration information and, based on the configuration information, sends data to or receives data sent by the configuration information sending entity. This application can be applied to terminal devices in a connected or active state, as well as terminal devices in an inactive or idle state.

[0117] Please refer to Figure 5, which is a schematic diagram of the architecture of the communication system 1000 used in the embodiments of this application. As shown in Figure 5, the communication system includes a radio access network (RAN) 100 and a core network 200. Optionally, the communication system 1000 may also include an Internet 300. The RAN 100 includes at least one RAN node (110a and 110b in Figure 5, collectively referred to as 110), and may also include at least one terminal (120a-120j in Figure 5, collectively referred to as 120). The RAN 100 may also include other RAN nodes, such as wireless relay devices and / or wireless backhaul devices (not shown in Figure 5). The terminal 120 is wirelessly connected to the RAN node 110, and the RAN node 110 is wirelessly or wiredly connected to the core network 200. The core network equipment in the core network 200 and the RAN node 110 in the RAN 100 can be independent and different physical devices, or they can be the same physical device integrating the logical functions of the core network equipment and the logical functions of the RAN node. Terminals can be connected to each other, as can RAN nodes, via wired or wireless means.

[0118] RAN100 can be an evolved universal terrestrial radio access (E-UTRA) system, an NR system, or a future radio access system as defined in the 3rd generation partnership project (3GPP). RAN100 can also include two or more of the above-mentioned different radio access systems. RAN100 can also be an open RAN (O-RAN).

[0119] RAN nodes, also known as radio access network devices, RAN entities, or access nodes, are used to help terminals access communication systems wirelessly. In one application scenario, an RAN node can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next-generation NodeB (gNB) in a 5G mobile communication system, or a base station in a future mobile communication system. RAN nodes can be macro base stations (as shown in Figure 5, 110a), micro base stations or indoor stations (as shown in Figure 5, 110b), and can also be relay nodes or donor nodes.

[0120] For ease of description, the following text uses a base station as an example of a RAN node.

[0121] A terminal is a device with wireless transceiver capabilities, capable of sending signals to or receiving signals from a base station. Alternatively, a terminal can be a device or module that is connected to the aforementioned communication system and possesses corresponding communication functions. A terminal typically contains a communication module, circuit, or chip that performs the corresponding communication function. The terminal may also be configured with program instructions for performing the corresponding communication function.

[0122] Terminal equipment, also known as user equipment (UE), mobile station (MS), mobile terminal (MT), fixed wireless access (FWA), customer premises equipment (CPE), etc., refers to devices that include wireless communication capabilities (providing voice / data connectivity to users). Examples include handheld devices with wireless connectivity, in-vehicle devices, and machine-type communication (MTC) terminals. Currently, terminal devices can include: mobile phones, tablets, laptops, PDAs, mobile internet devices (MIDs), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in self-driving (e.g., drones, vehicles), wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, and wireless terminals in smart homes. For example, wireless terminals in self-driving can be drones, helicopters, or airplanes. For example, wireless terminals in vehicle-to-everything (V2X) can be in-vehicle equipment, vehicle-mounted equipment, in-vehicle modules, vehicles, or ships. Wireless terminals in industrial control can be cameras, robots, or robotic arms. Wireless terminals in smart homes can be televisions, air conditioners, robot vacuums, speakers, or set-top boxes. The terminal device can also be a device or module that is connected to the communication system shown above and has corresponding communication functions. The terminal device usually contains a communication module, circuit or chip that performs the corresponding communication function, and the terminal device is also configured with program instructions for performing the corresponding communication function.

[0123] Base stations and terminals can be fixed or mobile. They can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can be deployed on aircraft, balloons, and satellites. The embodiments of this application do not limit the application scenarios of the base stations and terminals.

[0124] The roles of base stations and terminals can be relative. For example, the helicopter or drone 120i in Figure 5 can be configured as a mobile base station. For terminals 120j that access the wireless access network 100 through 120i, terminal 120i is a base station; however, for base station 110a, 120i is a terminal, meaning that 110a and 120i communicate via a wireless air interface protocol. Of course, 110a and 120i can also communicate via a base station-to-base station interface protocol. In this case, relative to 110a, 120i is also a base station. Therefore, both base stations and terminals can be collectively referred to as communication devices. 110a and 110b in Figure 5 can be called communication devices with base station functions, and 120a-120j in Figure 5 can be called communication devices with terminal functions.

[0125] Communication between base stations and terminals, between base stations, and between terminals can be conducted using licensed spectrum, unlicensed spectrum, or both simultaneously. Communication can be conducted using spectrum below 6 GHz, spectrum above 6 GHz, or both simultaneously. The embodiments of this application do not limit the spectrum resources used for wireless communication.

[0126] In the embodiments of this application, the functions of the base station can be executed by modules (such as chips) within the base station, or by a control subsystem that includes base station functions. This control subsystem, including base station functions, can be a control center in the aforementioned application scenarios such as smart grids, industrial control, intelligent transportation, and smart cities. Similarly, the functions of the terminal can be executed by modules (such as chips or modems) within the terminal, or by a device that includes terminal functions.

[0127] Please refer to Figure 6, which is a schematic flowchart of one embodiment of the communication method in this application. The communication method proposed in this application can be applied to a terminal device. In one example, the terminal device includes: a first power amplifier (PA) and a first local oscillator (LO), as well as a second PA and a second LO, wherein the first PA and the first LO correspond to a first component carrier CC, and the second PA and the second LO correspond to a second CC. The two sets of PAs and LOs are independent of each other. The MPR of the first CC can be determined independently, and the MPR of the second CC can also be determined independently. The two sets of PAs and LOs can transmit signals on their respective corresponding component carriers, and the transmit power of the signals transmitted by the two sets of PAs and LOs on their respective corresponding component carriers can be determined independently.

[0128] It is understood that the terminal device may also include more PAs and LOs, such as a third PA and a third LO, and this application embodiment does not limit this. The third component carrier corresponding to the third PA and the third LO is independent of the first CC and the second CC. The three sets of PAs and LOs in the terminal device are independent of each other, and the MPR of the third CC corresponding to the third PA and the third LO can also be determined independently. The third PA and the third LO can independently transmit signals on the corresponding third CC, and the transmit power of the signal can be determined independently.

[0129] The communication method proposed in this application includes:

[0130] S1. Determine the first maximum power back-off (MPR) based on the first transmission resource, where the first transmission resource is the transmission resource corresponding to the first component carrier CC, and the first MPR is used to indicate the power back-off value of the first signal carried by the first CC.

[0131] In step S1, the first transmission resource is the transmission resource corresponding to the first component carrier. The transmission resource corresponding to the first component carrier refers to the transmission resource allocated in the frequency domain within the range of the first component carrier. The first transmission resource includes one or more resource blocks (RBs).

[0132] In one possible implementation, determining the first MPR based on the first transmission resource includes: determining the first transmission mode corresponding to the first transmission resource based on the first transmission resource and the first CC; and determining the first MPR based on the first transmission mode corresponding to the first transmission resource.

[0133] Specifically, the first transmission mode corresponding to the first transmission resource is determined based on the number of consecutive RBs of the first transmission resource (referred to as the first consecutive RB number, which refers to the number of consecutively allocated RBs of the first transmission resource), the index of the starting RB of the first transmission resource (referred to as the first starting RB index, which refers to the RB index corresponding to the starting position of the first transmission resource in the frequency domain), and the maximum number of RBs carried by the first CC (referred to as the first maximum RB number).

[0134] In this embodiment, the transmission mode may include: internal RB allocation, external RB allocation, or edge RB allocation. For ease of distinction, the first transmission mode includes: first internal RB allocation, first external RB allocation, or first edge RB allocation. Since different transmission modes correspond to different MPRs, the corresponding first MPR can be determined after determining the first transmission mode. For example, if the first transmission mode is determined to be a first internal RB allocation, the first MPR is determined based on the first internal RB allocation. Similarly, if the first transmission mode is determined to be a first external RB allocation, the first MPR is determined based on the first external RB allocation. And again, if the first transmission mode is determined to be a first edge RB allocation, the first MPR is determined based on the first edge RB allocation.

[0135] In one example, the relationship between the first transmission mode and the corresponding first MPR is shown in Table 1.

[0136] Table 1

[0137] In Table 1, the relevant terms are described as follows: DFT-s-OFDM: Discrete Fourier Transform Extended Orthogonal Frequency Division Multiplexing; Pi / 2BPSK: π / 2 Binary Phase Shift Keying; Pi / 2BPSK w Pi / 2BPSK DMRS: π / 2 Binary Phase Shift Keying and π / 2 Binary Phase Shift Keying Demodulation Reference Signal; QPSK: Quadrature Phase Shift Keying; 16QAM: 16 Quadrature Amplitude Modulation; 64QAM: 64 Quadrature Amplitude Modulation; 256QAM: 256 Quadrature Amplitude Modulation; CP-OFDM: Cyclic Prefix Orthogonal Frequency Division Multiplexing.

[0138] In another example, the relationship between the first transmission mode and the corresponding first MPR is shown in Table 2.

[0139] Table 2

[0140] Next, we will introduce the specific method for determining the first transmission mode corresponding to the first transmission resource.

[0141] In one possible implementation, determining the first transmission mode corresponding to the first transmission resource based on the first transmission resource and the first CC includes: determining the first transmission mode based on the first consecutive RB number, the first maximum RB number, the first starting RB index, and / or, a first rule, wherein the first consecutive RB number is the number of RBs continuously allocated to the first transmission resource, the first maximum RB number is the maximum number of RBs carried by the first CC, the first starting RB index is the index of the starting RB of the first transmission resource, and the first rule includes: a first boundary value and a second boundary value, wherein the first boundary value is determined based on the first consecutive RB number, and the second boundary value is determined based on the first consecutive RB number and the first maximum RB number.

[0142] In one example, the first rule includes at least one of the following conditions:

[0143] Condition 1: The first starting RB index is greater than or equal to the first boundary value, or the first starting RB index is less than or equal to the second boundary value. The first boundary value is 1 / 2 of the number of first consecutive RBs rounded down, and the second boundary value is the difference between the number of first maximum RBs and the number of first consecutive RBs. The number of first consecutive RBs is less than or equal to 2 / 3 of the number of first maximum RBs rounded up.

[0144] Condition 2: The starting RB of the first transmission resource belongs to the first RB carried by the first CC or the second RB carried by the first CC (for example, the first RB carried by the first CC is RB0, and the second RB carried by the first CC is RB1).

[0145] When condition 1 is met, the first transmission mode is determined to be the first internal RB allocation;

[0146] When condition 2 is met, the first transmission mode is determined to be the first boundary RB allocation;

[0147] If conditions 1 and 2 are not met, the first transmission mode is determined to be the first external RB allocation.

[0148] Furthermore, in one example, condition 1 is satisfied: RB start,low,1 ≤RB start,1 ≤RB start,high,1 , RB start,high,1 =N RB,1 -L CRB,1 ,

[0149] Wherein, the first boundary value is RB start,low,1 The second boundary value is RB start,high,1 The first starting RB index is RB start,1 The first maximum number of RBs is N RB,1 The number of consecutive RBs in the first sequence is L. CRB,1 floor refers to rounding down, and ceil refers to rounding up.

[0150] S2. Determine the first transmit power based on the first MPR.

[0151] In step S2, the first MPR is used to indicate the power back-off value of the first signal carried by the first CC. Therefore, after determining the first MPR, the first transmission power can be determined by combining it with the current maximum transmission power of the terminal device.

[0152] In one possible implementation, the first transmit power refers to the transmit power of the first PA and the first LO transmitting the first signal carried by the first CC on the first transmission resource.

[0153] In one example, the maximum transmit power of the current terminal device is: P CMAX,f,c ; P CMAX_L,f,c ≤P CMAX,f,c ≤P CMAX_H,f,c ;

[0154] Among them, P CMAX_L,f,c It is P CMAX,f,c The lower limit, P CMAX_H,f,c It is P CMAX,f,c The upper limit of P. EMAX,c The maximum transmit power configured for the terminal device by the network device, and the power class (PC) capability reported by the terminal device to the network device is P. PowerClass ΔP PowerBoost When allocating power to the internal RB region, the allowable power increase is ΔP. PowerClass Power back-off is permitted for terminal devices under certain circumstances. ΔMPR, A-MPR (Additional Maximum Power Back-off), and P-MPR represent corresponding power back-offs under different conditions. These back-off parameters take into account the severe PA nonlinearity at high power, which may prevent the defined RF specifications from being met. MPR primarily considers factors such as different RB allocation regions, different modulation schemes, and different waveforms. ΔMPR allows for further back-off due to excessively large operating bandwidth. A-MPR allows for additional power back-off because radiation standards are set very low in some regions. Human body radiation is regulated by local regulations; P-MPR ensures that human body radiation standards are not exceeded through power back-off.

[0155] S3. Based on the first transmission power, transmit the first signal carried by the first CC on the first transmission resource.

[0156] In step S3, after determining the first transmit power, the terminal device transmits the first signal carried by the first CC on the first transmission resource.

[0157] In one possible implementation, the first PA and the first LO transmit a first signal carried by the first CC on the first transmission resource according to the first transmit power.

[0158] D1. Determine the second MPR based on the second transmission resource. The second transmission resource is the transmission resource corresponding to the second CC. The second MPR is used to indicate the power back-off value of the second signal carried by the second CC.

[0159] In step D1, the second transmission resource is the transmission resource corresponding to the second component carrier. The transmission resource corresponding to the second component carrier refers to the transmission resource allocated in the frequency domain within the range of the second component carrier. The second transmission resource includes one or more resource blocks (RBs).

[0160] In one possible implementation, determining the second MPR based on the second transmission resource includes: determining the second transmission mode corresponding to the second transmission resource based on the second transmission resource and the second CC; and determining the second MPR based on the second transmission mode corresponding to the second transmission resource.

[0161] Specifically, the second transmission mode corresponding to the second transmission resource is determined based on the number of consecutive RBs of the second transmission resource (referred to as the second consecutive RB number, which refers to the number of consecutively allocated RBs of the second transmission resource), the index of the starting RB of the second transmission resource (referred to as the second starting RB index, which refers to the RB index corresponding to the starting position of the second transmission resource in the frequency domain), and the maximum number of RBs carried by the second CC (referred to as the second maximum RB number).

[0162] For ease of differentiation, the second transmission mode includes: second internal RB allocation, second external RB allocation, or second edge RB allocation. Since different transmission modes correspond to different MPRs, the corresponding second MPR can be determined after determining the second transmission mode. For example, if the second transmission mode is determined to be second internal RB allocation, the second MPR is determined based on the second internal RB allocation. Similarly, if the second transmission mode is determined to be second external RB allocation, the second MPR is determined based on the second external RB allocation. And again, if the second transmission mode is determined to be second edge RB allocation, the second MPR is determined based on the second edge RB allocation.

[0163] For example, the relationship between the second transmission mode and the corresponding second MPR is similar to the relationship between the first transmission mode and the corresponding first MPR illustrated in Table 1 or Table 2 above, and will not be repeated here.

[0164] Next, we will introduce the specific method for determining the second transmission mode corresponding to the second transmission resource.

[0165] In one possible implementation, a second transmission mode is determined based on a second consecutive RB number, a second maximum RB number, a second starting RB index, and / or a second rule, wherein the second consecutive RB number is the number of RBs continuously allocated to the second transmission resource, the second maximum RB number is the maximum number of RBs carried by the second CC, the second starting RB index is the index of the starting RB of the second transmission resource, and the second rule includes a third boundary value and a fourth boundary value, wherein the third boundary value is determined based on the second consecutive RB number, and the fourth boundary value is determined based on the second consecutive RB number and the second maximum RB number.

[0166] Taking the example of a first transmission frequency (CC) being lower than the frequency of a second transmission frequency (CC), a method for determining a second transmission mode is introduced. The first CC being lower than the second CC means that, in the frequency domain, the frequency of the RB carried by the first CC is less than the frequency of the RB carried by the second CC. In one example, the second rule includes at least one of the following conditions:

[0167] Condition 3: The second starting RB index is greater than or equal to the third boundary value, or the second starting RB index is less than or equal to the fourth boundary value, the third boundary value is equal to 0, the fourth boundary value is equal to the second maximum RB quantity minus the second consecutive RB quantity minus 1 / 2 of the second consecutive RB quantity rounded down, and the second consecutive RB quantity is less than or equal to 2 / 3 times the second maximum RB quantity rounded up.

[0168] Condition 4: The sum of the second starting RB index and the number of the second consecutive RBs is greater than or equal to the difference between the second maximum RB number and 2.

[0169] When condition 3 is met, the second transmission mode is determined to be the second internal RB allocation;

[0170] When condition 4 is met, the second transmission mode is determined to be the second boundary RB allocation;

[0171] If conditions 3 and 4 are not met, the second transmission mode is determined to be the second external RB allocation.

[0172] Furthermore, in one example, condition 3 is satisfied: RB start,low,2 ≤RB start,2 ≤RB start,high,2 RB start,low,2 =0,

[0173] Wherein, the third boundary value is RB start,low,2 The fourth boundary value is RB start,high,2 The second starting RB index is RB start,2 The second largest number of RBs is N. RB,2 The number of consecutive RBs in the second sequence is L. CRB,2 .

[0174] It should be noted that the first CC and the second CC belong to the same carrier aggregation (CA).

[0175] In one possible implementation, the first CC is continuous with the second CC in the frequency domain. For ease of understanding, please refer to Figure 7, which is a schematic diagram of the first CC and the second CC in an embodiment of this application. The first CC and the second CC are continuous and do not overlap in the frequency domain. Non-overlap means that the RBs allocated to the first CC and the RBs allocated to the second CC are not the same.

[0176] In another possible implementation, the first CC is discontinuous with the second CC in the frequency domain. For ease of understanding, please refer to Figure 8, which is another schematic diagram of the first CC and the second CC in an embodiment of this application. The first CC and the second CC are discontinuous and do not overlap in the frequency domain; discontinuity means that there is a gap between the first CC and the second CC in the frequency domain.

[0177] D2. Determine the second transmit power based on the second MPR.

[0178] In step D2, the second MPR is used to indicate the power back-off value of the second signal carried by the second CC. Therefore, after determining the second MPR, the second transmission power can be determined by combining it with the current maximum transmission power of the terminal device.

[0179] In one possible implementation, the second transmit power refers to the transmit power of the second PA and the second LO transmitting the second signal carried by the second CC on the second transmission resource.

[0180] In one example, since the first MPR and the second MPR are determined independently, the first MPR and the second MPR are different.

[0181] D3. Based on the second transmission power, transmit the second signal carried by the second CC on the second transmission resource.

[0182] In step D3, after determining the second transmit power, the terminal device transmits the second signal carried by the second CC on the second transmission resource.

[0183] In one possible implementation, the second PA and the second LO transmit a second signal carried by the second CC on the second transmission resource according to the second transmit power.

[0184] It should be noted that steps D1 to D3 are independent of steps S1 to S3, and the execution order of steps D1 to D3 and steps S1 to S3 is not limited in this embodiment of the application.

[0185] In the above technical solution, for two independent component carriers, the terminal device can independently determine the maximum power backoff of the transmission resource corresponding to each component carrier. This allows the terminal device to determine the transmit power of the signal carried by each component carrier based on the independent maximum power backoff. Signals carried by different component carriers can use different transmit powers, increasing the chances of power gain for signals carried by different component carriers. For example, the first PA and first LO in the terminal device transmit a first signal carried by a first CC on the first transmission resource, and the second PA and second LO in the terminal device transmit a second signal carried by a second CC on the second transmission resource. Since the first MPR corresponding to the first transmission resource and the second MPR corresponding to the second transmission resource are independent, the first MPR and the second MPR are different, and consequently, the first transmit power and the second transmit power are different, flexibly adapting to different service requirements and increasing the chances of the terminal device obtaining power gain.

[0186] Based on the foregoing embodiments, the following describes some examples proposed in the embodiments of this application.

[0187] First, we will take the example of the first CC and the second CC being continuous in the frequency domain, that is, the first CC and the second CC illustrated in Figure 7.

[0188] Example 1: Please refer to Figure 9a, which is a schematic diagram of a transmission mode in an embodiment of this application. The first transmission mode corresponding to the first transmission resource is internal RB allocation, and the second transmission mode corresponding to the second transmission resource is internal RB allocation.

[0189] Example 2: Please refer to Figure 9b, which is a schematic diagram of a transmission mode in an embodiment of this application. The first transmission mode corresponding to the first transmission resource is internal RB allocation, and the second transmission mode corresponding to the second transmission resource is external RB allocation.

[0190] Example 3, please refer to Figure 9c, which is a schematic diagram of a transmission mode in an embodiment of this application. The first transmission mode corresponding to the first transmission resource is internal RB allocation, and the second transmission mode corresponding to the second transmission resource is edge RB allocation.

[0191] Example 4, please refer to Figure 9d, which is a schematic diagram of a transmission mode in an embodiment of this application. The first transmission mode corresponding to the first transmission resource is external RB allocation, and the second transmission mode corresponding to the second transmission resource is internal RB allocation.

[0192] Example 5, please refer to Figure 9e, which is a schematic diagram of a transmission mode in an embodiment of this application. The first transmission mode corresponding to the first transmission resource is external RB allocation, and the second transmission mode corresponding to the second transmission resource is external RB allocation.

[0193] Example 6, please refer to Figure 9f, which is a schematic diagram of a transmission mode in an embodiment of this application. The first transmission mode corresponding to the first transmission resource is external RB allocation, and the second transmission mode corresponding to the second transmission resource is edge RB allocation.

[0194] Example 7, please refer to Figure 9g, which is a schematic diagram of a transmission mode in an embodiment of this application. The first transmission mode corresponding to the first transmission resource is edge RB allocation, and the second transmission mode corresponding to the second transmission resource is internal RB allocation.

[0195] Example 8, please refer to Figure 9h, which is a schematic diagram of a transmission mode in an embodiment of this application. The first transmission mode corresponding to the first transmission resource is edge RB allocation, and the second transmission mode corresponding to the second transmission resource is external RB allocation.

[0196] Example 9, please refer to Figure 9i, which is a schematic diagram of a transmission mode in an embodiment of this application. The first transmission mode corresponding to the first transmission resource is edge RB allocation, and the second transmission mode corresponding to the second transmission resource is edge RB allocation.

[0197] Secondly, we will take the discontinuity of the first CC and the second CC in the frequency domain as an example, that is, we will take the first CC and the second CC shown in Figure 8 as an example.

[0198] Example 10: Please refer to Figure 10a, which is a schematic diagram of a transmission mode in an embodiment of this application. The first transmission mode corresponding to the first transmission resource is internal RB allocation, and the second transmission mode corresponding to the second transmission resource is internal RB allocation.

[0199] Example 11: Please refer to Figure 10b, which is a schematic diagram of a transmission mode in an embodiment of this application. The first transmission mode corresponding to the first transmission resource is internal RB allocation, and the second transmission mode corresponding to the second transmission resource is external RB allocation.

[0200] Example 12, please refer to Figure 10c, which is a schematic diagram of a transmission mode in an embodiment of this application. The first transmission mode corresponding to the first transmission resource is internal RB allocation, and the second transmission mode corresponding to the second transmission resource is edge RB allocation.

[0201] Example 13: Please refer to Figure 10d, which is a schematic diagram of a transmission mode in an embodiment of this application. The first transmission mode corresponding to the first transmission resource is external RB allocation, and the second transmission mode corresponding to the second transmission resource is internal RB allocation.

[0202] Example 14, please refer to Figure 10e, which is a schematic diagram of a transmission mode in an embodiment of this application. The first transmission mode corresponding to the first transmission resource is external RB allocation, and the second transmission mode corresponding to the second transmission resource is external RB allocation.

[0203] Example 15, please refer to Figure 10f, which is a schematic diagram of a transmission mode in an embodiment of this application. The first transmission mode corresponding to the first transmission resource is external RB allocation, and the second transmission mode corresponding to the second transmission resource is edge RB allocation.

[0204] Example 16, please refer to Figure 10g, which is a schematic diagram of a transmission mode in an embodiment of this application. The first transmission mode corresponding to the first transmission resource is edge RB allocation, and the second transmission mode corresponding to the second transmission resource is internal RB allocation.

[0205] Example 17, please refer to Figure 10h, which is a schematic diagram of a transmission mode in an embodiment of this application. The first transmission mode corresponding to the first transmission resource is edge RB allocation, and the second transmission mode corresponding to the second transmission resource is external RB allocation.

[0206] Example 18, please refer to Figure 10i, which is a schematic diagram of a transmission mode in an embodiment of this application. The first transmission mode corresponding to the first transmission resource is edge RB allocation, and the second transmission mode corresponding to the second transmission resource is edge RB allocation.

[0207] Next, the communication device involved in the embodiments of this application will be described. This communication device can be used in the terminal device in the foregoing embodiments.

[0208] Figure 11 is a schematic diagram of a communication device according to an embodiment of this application. Referring to Figure 11, the communication device 1100 includes a transceiver module 1101 and a processing module 1102.

[0209] The communication device 1100 includes a terminal device, which may be the terminal device itself, or a component (e.g., a chip), module or unit within the terminal device, or a module that implements the functions of the terminal device. This application embodiment does not limit this.

[0210] The communication device 1100 can be used to perform all or part of the steps performed by the terminal device in the embodiment shown in FIG6, as detailed in the relevant description in the embodiment shown in FIG6 above.

[0211] The processing module 1102 is used for data processing. The transceiver module 1101 is used to implement the corresponding communication functions.

[0212] Optionally, the transceiver module 1101 may include a sending module and a receiving module. The sending module is used to perform the sending operation in the above method embodiments. The receiving module is used to perform the receiving operation in the above method embodiments.

[0213] It should be noted that the communication device 1100 may include a transmitting module but not a receiving module. Alternatively, the communication device 1100 may include a receiving module but not a transmitting module. Specifically, it depends on whether the above-described scheme executed by the communication device 1100 includes both transmitting and receiving actions.

[0214] Optionally, the communication device 1100 may further include a storage module, which can be used to store instructions and / or data. The processing module 1102 can read the instructions and / or data in the storage module so that the communication device 1100 can implement the aforementioned method embodiments.

[0215] The communication device 1100 can be used to perform the actions performed by the terminal device side in the embodiment shown in FIG. 6. The processing module 1102 is used to perform processing-related operations on the terminal device side in the embodiment shown in FIG. 6. The transceiver module 1101 is used to perform receiving or sending-related operations on the terminal device side in the embodiment shown in FIG. 6.

[0216] For example, the communication device 1100 is used to execute the following scheme:

[0217] Processing module 1102 is configured to determine a first maximum power back-off (MPR) based on a first transmission resource, wherein the first transmission resource is the transmission resource corresponding to a first component carrier (CC), the first transmission resource includes one or more resource blocks (RB), and the first MPR is used to indicate the power back-off value of the first signal carried by the first CC.

[0218] Processing module 1102 is further configured to determine a first transmit power based on the first MPR;

[0219] Transceiver module 1101 is used to transmit the first signal carried by the first CC on the first transmission resource according to the first transmission power;

[0220] The processing module 1102 is further configured to determine a second MPR based on a second transmission resource, wherein the second transmission resource is the transmission resource corresponding to the second CC, the second transmission resource includes one or more RBs, and the second MPR is used to indicate the power back-off value of the second signal carried by the second CC.

[0221] Processing module 1102 is further configured to determine a second transmit power based on the second MPR;

[0222] The transceiver module 1101 is further configured to transmit the second signal carried by the second CC on the second transmission resource according to the second transmit power.

[0223] In one possible implementation,

[0224] The processing module 1102 is further configured to determine a first transmission mode corresponding to the first transmission resource based on the first transmission resource and the first CC.

[0225] Processing module 1102 is further configured to determine the first MPR based on the first transmission mode corresponding to the first transmission resource.

[0226] In one possible implementation, the first transmission mode includes:

[0227] First internal RB allocation, first external RB allocation, or first edge RB allocation.

[0228] In one possible implementation, determining the first transmission mode corresponding to the first transmission resource based on the first transmission resource and the first CC includes:

[0229] The first transmission mode is determined based on the first consecutive RB count, the first maximum RB count, the first starting RB index, and / or, a first rule, wherein...

[0230] The first consecutive RB number is the number of RBs consecutively allocated to the first transmission resource.

[0231] The first maximum number of RBs is the maximum number of RBs carried by the first CC.

[0232] The first starting RB index is the index of the starting RB of the first transmission resource.

[0233] The first rule includes: a first boundary value and a second boundary value.

[0234] The first boundary value is determined based on the number of consecutive RBs.

[0235] The second boundary value is determined based on the first consecutive RB number and the first maximum RB number.

[0236] In one possible implementation, the first rule includes at least one of the following conditions:

[0237] Condition 1: The first starting RB index is greater than or equal to the first boundary value, or the first starting RB index is less than or equal to the second boundary value.

[0238] The first boundary value is 1 / 2 of the first consecutive RB number rounded down, and the second boundary value is the difference between the first maximum RB number and the first consecutive RB number, where the first consecutive RB number is less than or equal to 2 / 3 of the first maximum RB number rounded up.

[0239] Condition 2: The starting RB of the first transmission resource belongs to the first RB carried by the first CC or the second RB carried by the first CC;

[0240] When condition 1 is met, the first transmission mode is determined to be the first internal RB allocation;

[0241] When condition 2 is met, the first transmission mode is determined to be the first boundary RB allocation;

[0242] When conditions 1 and 2 are not met, the first transmission mode is determined to be the first external RB allocation.

[0243] In one possible implementation, condition 1 satisfies: RB start,low,1 ≤RB start,1 ≤RB start,high,1 , RB start,high,1 =N RB,1 -L CRB,1 ,

[0244] Wherein, the first boundary value is RB start,low,1 The second boundary value is RB start,high,1 The first starting RB index is RB start,1 The first maximum number of RBs is N RB,1 The number of the first consecutive RBs is L CRB,1 .

[0245] In one possible implementation,

[0246] The processing module 1102 is further configured to determine the second transmission mode corresponding to the second transmission resource based on the second transmission resource and the second CC;

[0247] The processing module 1102 is further configured to determine the second MPR based on the second transmission mode corresponding to the second transmission resource.

[0248] In one possible implementation, the second transmission mode includes:

[0249] Second internal RB allocation, second external RB allocation, or second edge RB allocation.

[0250] In one possible implementation, determining the second transmission mode corresponding to the second transmission resource based on the second transmission resource and the second CC includes:

[0251] The second transmission mode is determined based on the second consecutive RB number, the second maximum RB number, the second starting RB index, and / or, a second rule, wherein...

[0252] The second consecutive RB number is the number of RBs consecutively allocated to the second transmission resource.

[0253] The second maximum number of RBs is the maximum number of RBs carried by the second CC.

[0254] The second starting RB index is the index of the starting RB of the second transmission resource.

[0255] The second rule includes: a third boundary value and a fourth boundary value.

[0256] The third boundary value is determined based on the number of the second consecutive RBs.

[0257] The fourth boundary value is determined based on the second consecutive RB number and the second maximum RB number.

[0258] In one possible implementation, the second rule includes at least one of the following conditions:

[0259] Condition 3: The second starting RB index is greater than or equal to the third boundary value, or the second starting RB index is less than or equal to the fourth boundary value, the third boundary value is equal to 0, the fourth boundary value is equal to the second maximum RB quantity minus the second consecutive RB quantity minus 1 / 2 of the second consecutive RB quantity rounded down, and the second consecutive RB quantity is less than or equal to 2 / 3 times the second maximum RB quantity rounded up.

[0260] Condition 4: The sum of the second starting RB index and the second consecutive RB count is greater than or equal to the difference between the second maximum RB count and 2.

[0261] When condition 3 is met, the second transmission mode is determined to be the second internal RB allocation;

[0262] When condition 4 is met, the second transmission mode is determined to be the second boundary RB allocation;

[0263] When conditions 3 and 4 are not met, the second transmission mode is determined to be the second external RB allocation.

[0264] In one possible implementation, condition 3 satisfies: RB start,low,2≤RB start,2 ≤RB start,high,2 RB start,low,2 =0,

[0265] Wherein, the third boundary value is RB start,low,2 The fourth boundary value is RB. start,high,2 The second starting RB index is RB start,2 The second maximum number of RBs is N RB,2 The number of the second consecutive RBs is L CRB,2 .

[0266] In one possible implementation, the frequency of the first CC is lower than the frequency of the second CC.

[0267] In one possible implementation, the first CC is continuous with the second CC in the frequency domain.

[0268] In one possible implementation, the first CC and the second CC belong to the same carrier aggregation CA.

[0269] In one possible implementation, the first MPR is different from the second MPR.

[0270] In one possible implementation, the first CC is transmitted via a first power amplifier PA and a first local oscillator LO;

[0271] The second CC is transmitted through the second PA and the second LO. The second PA is independent of the first PA, and the second LO is independent of the first LO.

[0272] It should be understood that the specific procedures for each module to perform the above-mentioned corresponding processes have been described in detail in the above method embodiments, and will not be repeated here for the sake of brevity.

[0273] The processing module 1102 in the above embodiments can be implemented by at least one processor or processor-related circuitry. The transceiver module 1101 can be implemented by a transceiver or transceiver-related circuitry. The transceiver module 1101 can also be referred to as a communication module or communication interface. The storage module can be implemented by at least one memory.

[0274] This application also provides another communication device, and FIG12 is another structural schematic diagram of the communication device according to an embodiment of this application. Referring to FIG12, the communication device 1200 includes a processor 1201.

[0275] Optionally, the communication device 1200 may also include a memory 1202.

[0276] Optionally, the communication device 1200 may also include a transceiver 1203.

[0277] In one possible implementation, the processor 1201, memory 1202, and transceiver 1203 are connected via a bus, and the memory 1202 stores computer instructions.

[0278] In one possible implementation, when the communication device 1200 includes a terminal device, or a component (e.g., a chip), module, or unit within the terminal device, the communication device 1200 can be used to perform the steps performed by the terminal device in the above method embodiments, as described in the relevant descriptions in the above method embodiments.

[0279] Optionally, the processing module 1102 in the embodiment shown in FIG11 may be the processor 1201, and the transceiver module 1101 in the embodiment shown in FIG11 may be the transceiver 1202. Alternatively, the processing module 1102 in the embodiment shown in FIG11 may be the processor 1201, and the transceiver module 1101 in the embodiment shown in FIG11 may be the transceiver 1202.

[0280] This application also provides a communication device. Figure 13 is another structural schematic diagram of the communication device according to an embodiment of this application. Referring to Figure 13, the communication device 1300 can be a terminal device in the above method embodiments, or it can be a component (e.g., a chip), module, or unit of the terminal device in the above method embodiments. The communication device 1300 can be used to perform the operations performed by the terminal device in the above method embodiments.

[0281] Processors are mainly used to process data or signals, control communication devices, execute corresponding software programs, and process data from software programs.

[0282] It should be noted that this processor has weak signal processing capabilities and is unable to perform complex signal processing algorithms.

[0283] The memory is mainly used to store software programs and data. The radio frequency (RF) circuit is mainly used for the conversion between baseband signals and RF signals, as well as the processing of RF signals.

[0284] Antennas are primarily used for transmitting and receiving radio frequency signals in the form of electromagnetic waves.

[0285] Optionally, the communication device 1300 may also include input / output devices, such as a touch screen, a display screen, a keyboard, etc., primarily used to receive user input data and output data to the user.

[0286] When data needs to be transmitted, the processor performs baseband processing on the data to be transmitted and outputs the baseband signal to the radio frequency (RF) circuit. The RF circuit then processes the baseband signal and transmits it outward as electromagnetic waves through the antenna. When data is sent to the communication device, the RF circuit receives the RF signal through the antenna, converts it into a baseband signal, and outputs the baseband signal to the processor. The processor then converts the baseband signal back into data and processes it.

[0287] For ease of explanation, only one memory and processor are shown in Figure 13. In actual communication device products, there may be one or more processors and one or more memories. Memory may also be called storage medium or storage device, etc. Memory may be set up independently of the processor or integrated with the processor; this application embodiment does not limit this.

[0288] In this embodiment, the antenna and radio frequency circuit with transceiver functions can be regarded as the transceiver unit of the communication device, and the processor with processing functions can be regarded as the processing unit of the communication device. As shown in FIG13, the communication device 1300 includes a transceiver unit 1310 and a processing unit 1320. The transceiver unit can also be called a transceiver, transceiver machine, transceiver device, etc. The processing unit can also be called a processor, processing board, processing module, processing device, etc.

[0289] Optionally, the devices in transceiver unit 1310 used for receiving functions can be considered as receiving units, and the devices in transceiver unit 1310 used for transmitting functions can be considered as transmitting units. That is, transceiver unit 1310 includes both receiving and transmitting units. A transceiver unit can also be called a transceiver, transceiver circuit, etc. A receiving unit can also be called a receiver, receiver, or receiving circuit, etc. A transmitting unit can also be called a transmitter, transmitter, or transmitting circuit, etc.

[0290] It should be understood that the transceiver unit 1310 is used to perform the sending and receiving operations of the terminal device in the above method embodiment, and the processing unit 1220 is used to perform other operations on the terminal device in the above method embodiment besides the sending and receiving operations.

[0291] When the communication device is a chip, the chip includes a transceiver unit and a processing unit. The transceiver unit can be an input / output circuit or a communication interface; the processing unit is a processor, microprocessor, integrated circuit, or logic circuit integrated on the chip. In the above method embodiment, the sending operation corresponds to the output of the input / output circuit, and the receiving operation corresponds to the input of the input / output circuit.

[0292] This application also provides a terminal device. Figure 14 is a schematic diagram of a terminal device according to an embodiment of this application. Referring to Figure 14, the terminal device 1400 can be the terminal device in the above method embodiments, or it can be a component (e.g., a chip), module, or unit of the terminal device in the above method embodiments. The terminal device 1400 can be used to perform the operations performed by the terminal device in the above method embodiments.

[0293] The terminal device 1400 includes: a first power amplifier and a first local oscillator, as well as a second power amplifier and a second local oscillator, wherein the first local oscillator provides a first local oscillator signal to the first power amplifier, and the first power amplifier transmits a first signal on a first component carrier based on the first local oscillator signal; the second local oscillator provides a second local oscillator signal to the second power amplifier, and the second power amplifier transmits a second signal on a second component carrier based on the second local oscillator signal.

[0294] This application also provides a communication system, which includes a terminal device for performing all or part of the steps performed by the terminal device in the embodiment shown in FIG6.

[0295] This application also provides another communication system, which includes a terminal device and an access network device. The terminal device is used to perform all or part of the steps performed by the terminal device in the embodiment shown in FIG6, and the access network device is used to configure a first component carrier and a second component carrier to the terminal device.

[0296] This application also provides a computer program product including computer instructions, which, when run on a computer, causes the computer to perform the method of the embodiment shown in FIG6 above.

[0297] This application also provides a computer-readable storage medium including computer instructions that, when executed on a computer, cause the computer to perform the method of the embodiment shown in FIG6 above.

[0298] This application also provides a chip device, including a processor, for calling a computer program or computer instructions stored in a memory to cause the processor to execute the method of the embodiment shown in FIG6 above.

[0299] Optionally, the processor is coupled to the memory via an interface.

[0300] Optionally, the chip device may also include a memory in which computer programs or computer instructions are stored.

[0301] The processor mentioned above can be a general-purpose central processing unit, a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits used to control the execution of a program for controlling the method of the embodiment shown in Figure 6. The memory mentioned above can be read-only memory (ROM) or other types of static storage devices capable of storing static information and instructions, such as random access memory (RAM).

[0302] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection between apparatuses or units through some interfaces, and may be electrical, mechanical, or other forms.

[0303] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0304] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0305] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the part of the technical solution that makes an essential contribution, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application.

[0306] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A communication method characterized by comprising: The method comprises: determining a first maximum power reduction (MPR) according to a first transmission resource, the first transmission resource being a transmission resource corresponding to a first component carrier (CC), the first transmission resource comprising one or more resource blocks (RBs), the first MPR being used to indicate a power reduction value of a first signal carried by the first CC; determining a first transmit power according to the first MPR; transmitting the first signal carried by the first CC on the first transmission resource according to the first transmit power; determining a second MPR according to a second transmission resource, the second transmission resource being a transmission resource corresponding to a second CC, the second transmission resource comprising one or more RBs, the second MPR being used to indicate a power reduction value of a second signal carried by the second CC; determining a second transmit power according to the second MPR; transmitting the second signal carried by the second CC on the second transmission resource according to the second transmit power.

2. The method of claim 1, wherein, The method comprises: determining the first MPR according to the first transmission resource comprises: determining a first transmission mode corresponding to the first transmission resource according to the first transmission resource and the first CC; 3. The method of claim 2, wherein, determining the first MPR according to the first transmission mode corresponding to the first transmission resource. The first transmission mode comprises:

4. The method according to claim 2 or 3, characterized in that, a first inner RB allocation, a first outer RB allocation, or a first edge RB allocation. The method comprises: determining the first transmission mode corresponding to the first transmission resource according to a first continuous RB number, a first maximum RB number, a first starting RB index, and / or a first rule, wherein, the first continuous RB number is a number of continuously allocated RBs of the first transmission resource, the first maximum RB number is a maximum number of RBs carried by the first CC, the first starting RB index is an index of a starting RB of the first transmission resource, the first rule comprises a first boundary value and a second boundary value, the first boundary value is determined according to the first continuous RB number, 5. The method of claim 4, wherein, the second boundary value is determined according to the first continuous RB number and the first maximum RB number. The first rule comprises at least one of the following conditions: condition 1: the first starting RB index is greater than or equal to the first boundary value, or the first starting RB index is less than or equal to the second boundary value, the first boundary value is a floor of 1 / 2 of the first continuous RB number, the second boundary value is a difference between the first maximum RB number and the first continuous RB number, and the first continuous RB number is less than or equal to a ceiling of 2 / 3 of the first maximum RB number; condition 2: a starting RB of the first transmission resource belongs to a first RB carried by the first CC or a second RB carried by the first CC; when the condition 1 is met, determining that the first transmission mode is the first inner RB allocation; when the condition 2 is met, determining that the first transmission mode is the first edge RB allocation; When the condition 1 and the condition 2 are not satisfied, the first transmission mode is determined as the first outer RB allocation.

6. The method of claim 5, wherein, The condition 1 is satisfied: RB start,low,1 ≤ RB start,1 ≤ RB start,high,1 , RB start,high,1 = N RB,1 - L CRB,1 , Wherein, the first boundary value is RB start,low,1 , the second boundary value is RB start,high,1 , the first starting RB index is RB start,1 , the first maximum RB number is N RB,1 , and the first continuous RB number is L CRB,1 .

7. The method according to any one of claims 1 to 6, characterized in that, According to the second transmission resource, the second MPR is determined, comprising: According to the second transmission resource and the second CC, the second transmission mode corresponding to the second transmission resource is determined; According to the second transmission mode corresponding to the second transmission resource, the second MPR is determined.

8. The method of claim 7, wherein, The second transmission mode comprises: The second internal RB allocation, the second outer RB allocation, or the second edge RB allocation.

9. The method according to claim 7 or 8, characterized in that, According to the second transmission resource and the second CC, the second transmission mode corresponding to the second transmission resource is determined, comprising: According to the second continuous RB number, the second maximum RB number, the second starting RB index, and / or the second rule, the second transmission mode is determined, wherein, The second continuous RB number is the number of continuously allocated RBs of the second transmission resource, The second maximum RB number is the maximum number of RBs carried by the second CC, The second starting RB index is the index of the starting RB of the second transmission resource, The second rule comprises: a third boundary value and a fourth boundary value, The third boundary value is determined according to the second continuous RB number, The fourth boundary value is determined according to the second continuous RB number and the second maximum RB number.

10. The method of claim 9, wherein, The second rule comprises at least one of the following conditions: Condition 3: the second starting RB index is greater than or equal to the third boundary value, or the second starting RB index is less than or equal to the fourth boundary value, the third boundary value is equal to 0, and the fourth boundary value is equal to the second maximum RB number minus the second continuous RB number minus 1 / 2 the second continuous RB number, the second continuous RB number is less than or equal to 2 / 3 times the second maximum RB number rounded up; Condition 4: the sum of the second starting RB index and the second continuous RB number is greater than or equal to the difference between the second maximum RB number and 2; When the condition 3 is satisfied, the second transmission mode is determined as the second internal RB allocation; When the condition 4 is satisfied, the second transmission mode is determined as the second boundary RB allocation; When the condition 3 and the condition 4 are not satisfied, the second transmission mode is determined as the second outer RB allocation.

11. The method of claim 10, wherein, The condition 3 is satisfied: RB start,low,2 ≤ RB start,2 ≤ RB start,high,2 , RB start,low,2 = 0, Wherein, the third boundary value is RB start,low,2 , the fourth boundary value is RB start,high,2 , the second starting RB index is RB start,2 , the second maximum RB number is N RB,2 , and the second continuous RB number is L CRB,2 .

12. The method according to any one of claims 1-11, characterized in that, The frequency of the first CC is lower than the frequency of the second CC.

13. The method according to any one of claims 1 to 12, characterized in that, The first CC is continuous with the second CC in the frequency domain.

14. The method of any one of claims 1-13, wherein, The first CC and the second CC belong to the same carrier aggregation CA.

15. The method of any one of claims 1-14, wherein, The first MPR is different from the second MPR.

16. The method of any one of claims 1-15, wherein: The first CC is transmitted through a first power amplifier PA and a first local oscillator LO; The second CC is transmitted through a second PA and a second LO, the second PA and the first PA are independent of each other, and the second LO and the first LO are independent of each other.

17. A communications device, characterized by The communication apparatus comprises a processor configured to execute computer programs or computer instructions in a memory to perform the method of any one of claims 1-16.

18. The communication apparatus according to claim 17, wherein The communication apparatus comprises a first power amplifier (PA) and a first local oscillator (LO), and a second PA and a second LO, the second PA being independent of the first PA, and the second LO being independent of the first LO. The first CC is transmitted by the first PA and the first LO. The second CC is transmitted by the second PA and the second LO.

19. The apparatus of claim 17 or 18, wherein, The apparatus further comprises a transceiver, and the processor and the transceiver are connected by a line.

20. The communication apparatus according to any one of claims 17-19, wherein, The communication apparatus is a terminal device.

21. A communications device, characterized by The communication apparatus comprises a transceiving module configured to perform the transceiving operation of the method of any one of claims 1-16.

22. The communication apparatus according to claim 21, wherein, The communication apparatus further comprises a processing module configured to perform the processing operation of the method of any one of claims 1-16.

23. A computer-readable storage medium, characterized in that, A computer program is stored on the apparatus, and the computer program is executed by the apparatus to cause the apparatus to perform the method of any one of claims 1-16.

24. A computer program product, characterised in that, The computer program product, when running on a computer, causes the computer to perform the method of any one of claims 1-16.

Images