Method for adjusting the transmission power ratio of a radio module and radio module

Abstract

Method for adjusting a transmit power ratio of a radio module and radio module. A method for adjusting a transmit (TX) power ratio of a radio module is provided, the method comprising: mapping a radio frequency (RF) exposure limit to a TX power limit; interacting with at least one other radio module for adjusting the TX power ratio to obtain an adjusted TX power ratio; and adjusting the TX power limit according to the adjusted TX power ratio to generate an adjusted TX power limit of the radio module.

Description

[0001] Cross-references to related applications

[0002] This application claims the benefit of U.S. Provisional Application No. 63 / 337,639, filed May 3, 2022, and U.S. Patent Application No. 18 / 131,874, filed April 7, 2023. The entire contents of these applications are incorporated herein by reference. Technical Field

[0003] This invention relates to radio frequency (RF) technology, and more particularly, to a method for adjusting the transmit (TX) power ratio of a radio module and the associated radio module. Background Technology

[0004] Today, RF technology is frequently found in user equipment (UE; such as mobile phones). However, excessive RF exposure can be harmful to human health. Therefore, various national authorities (e.g., the Federal Communications Commission (FCC) in the United States, the Innovation, Science, and Economic Development Commission (ISED) in Canada, and the European Commission in Europe) have established time-averaged RF exposure limits to restrict the time-averaged RF exposure of radio modules in UEs. For example, for radio modules operating in frequencies below 6 GHz, time-averaged RF exposure is quantified by the time-averaged specific absorption rate (SAR), while for radio modules operating in frequencies at or above 6 GHz, it is quantified by the time-averaged power density (PD). Furthermore, since time-averaged RF exposure is proportional to the radio module's TX power, time-averaged RF exposure limits can be met by controlling the TX power.

[0005] For simultaneous transmission of multiple radio access technologies (multi-RAT) (e.g., 2G, 3G, 4G, FR1, FR2, wireless fidelity (Wi-Fi), and Bluetooth (BT), the official specification stipulates that the total exposure ratio (TER) must be less than or equal to 1 (i.e., TER ≤ 1). How to correctly allocate the TX power of multiple radio modules in a UE to simultaneously meet regulatory and performance requirements has become a significant issue. Conventional TX power allocation methods only allocate the maximum available TX power ratio to multiple radio modules with a predetermined fixed ratio. The drawback is that even if any one of the multiple radio modules requires only a TX power ratio less than the predetermined fixed ratio (i.e., one radio module will have an unused TX power margin), the other radio modules may not be able to utilize this margin, which will reduce ratio efficiency and performance. Therefore, a novel method for adjusting the TX power ratio of radio modules and the associated radio modules are urgently needed. Summary of the Invention

[0006] Therefore, one of the objectives of this invention is to provide a method for adjusting the transmit TX power ratio of a radio module and an associated radio module, in order to solve the problems mentioned above.

[0007] According to an embodiment of the present invention, a method for adjusting the TX power ratio of a radio module is provided. The method includes: mapping an RF exposure limit to a TX power limit; interacting with at least one other radio module to adjust the TX power ratio to obtain an adjusted TX power ratio; and adjusting the TX power limit based on the adjusted TX power ratio to generate an adjusted TX power limit for the radio module.

[0008] According to an embodiment of the present invention, a radio module is provided for adjusting the TX power ratio of a radio module. The radio module is arranged to: map an RF exposure limit to a TX power limit; interact with at least one other radio module to adjust the TX power ratio to obtain an adjusted TX power ratio; and adjust the TX power limit based on the adjusted TX power ratio to generate an adjusted TX power limit for the radio module.

[0009] One advantage of this invention is that, using the method and associated radio modules of this invention, initially, under the condition that any one of the multiple radio modules only requires a TX power ratio less than a predetermined fixed ratio (i.e., one radio module will have unused TX power margin), the other radio modules in the multiple radio modules can dynamically adjust the TX power ratios of the other radio modules and the TX power ratio of any one of the multiple radio modules using the TX power margin (e.g., increasing the TX power ratio of the other radio modules and decreasing the TX power ratio of any one of the multiple radio modules). Subsequently, under the condition that any one of the multiple radio modules still only requires a current TX power ratio less than the previously adjusted TX power ratio (i.e., the one radio module will still have unused TX power margin), the other radio modules in the multiple radio modules can make further dynamic adjustments using the TX power margin. This improves ratio efficiency and performance.

[0010] These and other objects of the invention will undoubtedly become apparent to those skilled in the art after reading the following detailed description of the preferred embodiments illustrated in the various figures. Attached Figure Description

[0011] Figure 1 This is a schematic diagram illustrating an adjustment scheme between two radio modules according to an embodiment of the present invention.

[0012] Figure 2 This is a schematic diagram illustrating a control scheme for the instantaneous power of a radio module according to an embodiment of the present invention.

[0013] Figure 3 This is a flowchart of a method for adjusting the TX power ratio of a radio module according to an embodiment of the present invention. Detailed Implementation

[0014] Throughout the following description and claims, certain terms are used to refer to specific components. As will be apparent to those skilled in the art, electronic device manufacturers may use different names to refer to components. This document is not intended to distinguish between components with different names rather than different functions. In the following description and claims, the terms "include" and "comprise" are used in an open-ended manner and should therefore be interpreted as meaning "including, but not limited to...".

[0015] Figure 1This is a schematic diagram illustrating an adjustment scheme between two radio modules 100 and 102 according to an embodiment of the present invention. By way of example and not limitation, radio modules 100 and 102 may include communication circuitry corresponding to sub-6, millimeter wave (mmWave), Wi-Fi, BT, Zigbee, global positioning system (GPS), vehicle-to-everything (V2X), and non-terrestrial networks (NTN). For example, radio modules 100 and 102 may be a cellular module and a connectivity module, respectively, wherein the cellular module may correspond to sub-6 and mmWave, and the connectivity module may correspond to Wi-Fi and BT, and the cellular module and connectivity module may be disposed on different chips. However, this is merely illustrative, and the invention is not limited thereto.

[0016] like Figure 1 As shown, processing module 104 may include circuitry arranged to receive weighting information WEIGHT_1 from a user or different scenario for allocating the TX power ratio TXR1 of radio module 100 and the TX power ratio TXR2 of radio module 102. For example, the weighting information WEIGHT_1 may be a predetermined fixed ratio for the TX power ratios TXR1 and TXR2 from the user or different scenario. It should be noted that processing module 104 may be implemented by one of the radio modules 100 and 102 (i.e., processing module 104 may be part of radio module 100 or radio module 102), and processing module 104 may also be arranged to interact with another radio module in radio modules 100 and 102 to receive at least one message from said other radio module for dynamically adjusting the TX power ratios TXR1 and TXR2. In this embodiment, the dynamic adjustment of the TX power ratio is performed between the two radio modules (e.g., radio modules 100 and 102). However, this is merely illustrative and not intended to limit the invention. In some implementations, dynamic adjustment of the TX power ratio can be performed between more than two radio modules. In practice, processing module 104 can employ any radio module capable of interacting with at least one other radio module to receive at least one message and dynamically adjusting the TX power ratio of any radio module at least based on said at least one message. All these alternative designs fall within the scope of this invention.

[0017] In this embodiment, radio module 100 can be arranged to receive an officially defined time-averaged RF exposure limit (hereinafter referred to as "RF exposure limit" for brevity), which corresponds to radio module 100. Since this RF exposure limit is proportional to the TX power of radio module 100, radio module 100 can also be arranged to map the RF exposure limit to a TX power limit TPL1. Specifically, the RF exposure limit can be the total exposure ratio (TER), where TER can include a normalized average specific absorption rate (SAR) limit and a normalized average power density (PD) limit, and TER is required to be less than or equal to 1 (i.e., TER ≤ 1). Radio module 100 can use testing or simulation to find a first normalized average TX power limit mapped to the normalized average SAR limit and a second normalized average TX power limit mapped to the normalized average PD limit, where the TX power limit TPL1 includes both the first and second normalized average TX power limits. However, this is merely illustrative, and the invention is not limited thereto. In some embodiments, the user can directly find the TX power limit TPL1 using testing or simulation. That is, the RF exposure limit can also be directly mapped by the user to the TX power limit TPL1 of the radio module 100. Similarly, the radio module 102 can be arranged to receive an officially specified RF exposure limit, wherein the RF exposure limit corresponds to the radio module 102. Since the RF exposure limit is proportional to the TX power of the radio module 102, the radio module 102 can also be arranged to map the RF exposure limit to the TX power limit TPL2 of the radio module 102. However, this is merely illustrative, and the invention is not limited thereto. In some embodiments, the user can directly find the TX power limit TPL2 using testing or simulation. That is, the RF exposure limit can also be directly mapped by the user to the TX power limit TPL2 of the radio module 102.

[0018] In a scheme where the processing module 104 is implemented by the radio module 100, the processing module 104 can interact with the radio module 102 to receive at least one message M2 from the radio module 102, and adjust the TX power ratios TXR1 and TXR2 based at least on the at least one message M2 to obtain adjusted TX power ratios A_TXR1 and A_TXR2, respectively. For example, the processing module 104 can adjust the TX power ratios TXR1 and TXR2 based only on the at least one message M2 to obtain adjusted TX power ratios A_TXR1 and A_TXR2, respectively. In another example, the processing module 104 can adjust the TX power ratios TXR1 and TXR2 based on both at least one message M1 and at least one message M2 calculated by the radio module 100 to obtain adjusted TX power ratios A_TXR1 and A_TXR2, respectively. It should be noted that in some embodiments, if the processing module 104 is unable to receive the at least one message M2 from the radio module 102 for some reason, the processing module 104 may adjust the TX power ratios TXR1 and TXR2 based solely on the at least one message M1 to obtain adjusted TX power ratios A_TXR1 and A_TXR2, respectively. In some embodiments, after the processing module 104 receives the at least one message M2 from the radio module 102 through interaction with the radio module 102, the at least one message M2 may be stored in a memory. Figure 1 (Not shown in the image), and the processing module 104 can adjust the TX power ratios TXR1 and TXR2 based solely on the at least one message M1 to obtain adjusted TX power ratios A_TXR1 and A_TXR2, respectively. All these alternative designs fall within the scope of the invention. The radio module 100 can be arranged to adjust the TX power limit TPL1 based on the adjusted TX power ratio A_TXR1 to generate an adjusted TX power limit ATPL1 for the radio module 100.

[0019] Alternatively, in a scheme where the processing module 104 is implemented by the radio module 102, the processing module 104 can interact with the radio module 100 to receive at least one message M1 from the radio module 100, and adjust the TX power ratios TXR1 and TXR2 based at least on the at least one message M1 to obtain adjusted TX power ratios A_TXR1 and A_TXR2, respectively. For example, the processing module 104 can adjust the TX power ratios TXR1 and TXR2 based solely on the at least one message M1 to obtain adjusted TX power ratios A_TXR1 and A_TXR2, respectively. In another example, the processing module 104 can adjust the TX power ratios TXR1 and TXR2 based on both the at least one message M1 and the at least one message M2 calculated by the radio module 102 to obtain adjusted TX power ratios A_TXR1 and A_TXR2, respectively. It should be noted that in some embodiments, if the processing module 104 is unable to receive the at least one message M1 from the radio module 100 for some reason, the processing module 104 may adjust the TX power ratios TXR1 and TXR2 based solely on the at least one message M2 to obtain adjusted TX power ratios A_TXR1 and A_TXR2, respectively. In some embodiments, after the processing module 104 receives the at least one message M1 from the radio module 100 through interaction with the radio module 100, the at least one message M1 may be stored in a memory. Figure 1 (Not shown in the image), and the processing module 104 can adjust the TX power ratios TXR1 and TXR2 based solely on the at least one message M2 to obtain adjusted TX power ratios A_TXR1 and A_TXR2, respectively. All these alternative designs fall within the scope of the invention. The radio module 102 can be arranged to adjust the TX power limit TPL2 based on the adjusted TX power ratio A_TXR2 to generate an adjusted TX power limit ATPL2 for the radio module 102.

[0020] The at least one message M1 and the at least one message M2 may respectively include the on / off state of the radio module 100 and the on / off state of the radio module 102. The off state indicates that the corresponding radio module has not performed a TX operation for a period of time (e.g., the corresponding radio module is in power-off mode, airplane mode, sleep mode, discontinuous transmission (DTX) mode, call drop mode, or no subscriber identity module (SIM) card mode). The on state indicates that the corresponding radio module is not in the off state. For example, when the corresponding radio module is not in power-off mode, airplane mode, sleep mode, DTX mode, call drop mode, or no SIM card mode, the corresponding radio module is in the on state. In addition, each message in the at least one message M1 and the at least one message M2 may also include some information about the corresponding radio module. As an example and not a limitation, the information for the corresponding radio module may include: previous TX power ratio, TX power ratio margin, one or more TX performance indices, one or more receiving (RX) performance indices, one or more weighting information (e.g., weighting information WEIGHT_I), or one or more configurations.

[0021] The one or more TX performance metrics may include at least one of the following: TX duty cycle, TX error vector magnitude (EVM), target power, throughput, modulation and coding scheme (MCS), block error rate (BLER), resource block (RB), transmission block size (TBS), and TX packet error rate (TX PER). The one or more RX performance metrics may include at least one of the following: RX duty cycle, modulation and coding scheme (MCS), block error rate (BLER), resource block (RB), received signal strength indication (RSSI), reference signal receiving power (RSRP), signal to noise ratio (SNR), signal-to-interference-plus-noise ratio (SINR), and RX packet error rate (RX PER). The one or more configurations may be associated with at least one of the following: antenna, frequency band, beam, technology, sub-band, one or more exposure condition indices, simultaneous transmitted state, mobile country code (MCC), mobile network code (MNC), modulation, bandwidth, maximum power reduction (MPR), path, duty cycle, and combination of frequency band and SIM.

[0022] In detail, in the scheme where the processing module 104 is implemented by the radio module 100, at the beginning, the processing module 104 can interact with the radio module 102 to receive the on / off state of the radio module 102 included in the at least one message M2. In response to the on / off state indicating that the radio module 102 is off, the processing module 104 can allocate a portion of the TX power ratio TXR2 of the radio module 102 (e.g., the power ratio portion of the TX power ratio TXR2 excluding the power ratio corresponding to the reserved power) to the TX power ratio TXR1 of the radio module 100, or allocate the entire TX power ratio TXR2 of the radio module 102 to the TX power ratio TXR1 of the radio module 100, to obtain adjusted TX power ratios A_TXR1 and A_TXR2, wherein the margin can be dynamically calculated based on the at least one message M1 and / or the at least one message M2. In response to an on / off state indicating that the radio module 102 is turned on, the processing module 104 can interact with the radio module 102 to receive information about the radio module 102 included in the at least one message M2, and dynamically adjust the TX power ratio TXR1 of the radio module 100 and the TX power ratio TXR2 of the radio module 102 based on the information about the radio module 102 and the information about the radio module 100 included in the at least one message M1 calculated by the radio module 100, so as to obtain the adjusted TX power ratios A_TXR1 and A_TXR2 respectively. For example, under the condition that the weighting information WEIGHT_I indicates that the predetermined fixed ratio of radio module 102 is 0.4 and the actual TX power ratio used by radio module 102 is 0.2, the TX power ratio margin of radio module 102 is 0.2, and processing module 104 can allocate the TX power ratio margin of radio module 102 to radio module 100 for dynamically adjusting TX power ratios TXR1 and TXR2 to obtain adjusted TX power ratios A_TXR1 and A_TXR2 respectively (e.g., increasing TX power ratio TXR1 and correspondingly decreasing TX power ratio TXR2 to obtain adjusted TX power ratios A_TXR1 and A_TXR2 respectively). Then, radio module 100 can adjust TX power limit TPL1 according to the adjusted TX power ratio A_TXR1 to generate adjusted TX power limit ATPL1 of radio module 100.

[0023] Similarly, in the scheme where processing module 104 is implemented by radio module 102, at the beginning, processing module 104 can interact with radio module 100 to receive the on / off state of radio module 100 included in the at least one message M1. In response to the on / off state indicating that radio module 100 is off, processing module 104 can allocate a portion of the TX power ratio TXR1 of radio module 100 (e.g., the power ratio portion of TXR1 other than the power ratio corresponding to the reserved power) to the TX power ratio TXR2 of radio module 102, or allocate the entire TX power ratio TXR1 of radio module 100 to the TX power ratio TXR2 of radio module 102, to obtain adjusted TX power ratios A_TXR1 and A_TXR2, wherein the margin can be dynamically calculated based on the at least one message M1 and / or the at least one message M2. In response to an on / off state indicating that radio module 100 is on, processing module 104 can interact with radio module 100 to receive information about radio module 100 included in the at least one message M1, and dynamically adjust the TX power ratio TXR1 of radio module 100 and the TX power ratio TXR2 of radio module 102 based on the information about radio module 100 and the information about radio module 102 included in the at least one message M2 calculated by radio module 102, to obtain adjusted TX power ratios A_TXR1 and A_TXR2, respectively. Then, radio module 102 can adjust the TX power limit TPL2 based on the adjusted TX power ratio A_TXR2 to generate the adjusted TX power limit ATPL2 of radio module 102.

[0024] After generating the adjusted TX power limit ATPL1, radio module 100 can control its instantaneous power (IP) so that its average power AVP is lower than or equal to the adjusted TX power limit ATPL1. Similarly, after generating the adjusted TX power limit ATPL2, radio module 102 can control its instantaneous power IP so that its average power AVP is lower than or equal to the adjusted TX power limit ATPL2. For details, please refer to... Figure 2 . Figure 2 This is a schematic diagram illustrating a control scheme for the instantaneous power of a radio module 100 / 102 according to an embodiment of the present invention, wherein the horizontal axis of the schematic diagram represents time, and the vertical axis of the schematic diagram represents the TX power of the radio module 100 / 102. Figure 2As shown, to comply with regulations regarding RF exposure limits, radio modules 100 / 102 can be arranged such that the upper limit of the instantaneous power IP of radio modules 100 / 102 is controlled to be below the power limit P_CAP, so that the average power AVP of radio modules 100 / 102 is lower than or equal to the adjusted TX power limits ATPL1 / ATPL2. Since the operation of the power limit P_CAP is well known to those skilled in the art, and the focus of this invention is on dynamically adjusting the TX power ratio TXR1 / TXR2 of radio modules 100 / 102, details of the operation of the power limit P_CAP will be omitted for brevity.

[0025] After controlling the average power AVP of radio module 100 to be lower than or equal to the adjusted TX power limit ATPL1 of radio module 100, radio module 100 may also be arranged to calculate the at least one message M1 of radio module 100 for interaction with radio module 102. For example, radio module 100 may calculate a previous TX power ratio, TX power ratio margin, one or more TX performance metrics, one or more RX performance metrics, one or more weighting information, or one or more configurations. Similarly, after controlling the average power AVP of radio module 102 to be lower than or equal to the adjusted TX power limit ATPL2 of radio module 102, radio module 102 may also be arranged to calculate the at least one message M2 of radio module 102 for interaction with radio module 100. For brevity, a similar description of this embodiment is omitted.

[0026] Figure 3 This is a flowchart of a method for adjusting the TX power ratio of a radio module according to an embodiment of the present invention. As long as the results are substantially the same, it is not necessary to... Figure 3 The steps are performed in the exact order shown. For example, Figure 3 The method shown can be derived from Figure 1 The radio module 100, radio module 102, and processing module 104 shown are adopted.

[0027] In step S300, radio module 100 maps the RF exposure limit corresponding to radio module 100 to TX power limit TPL1. Similarly, radio module 102 maps the RF exposure limit corresponding to radio module 102 to TX power limit TPL2.

[0028] In step S302, when the processing module 104 is implemented by the radio module 100, it receives the on / off state of the radio module 102, which is included in the at least one message M2, by interacting with the radio module 102. Then, it is determined whether the on / off state indicates that the radio module 102 is on. If yes, proceed to step S304; otherwise, proceed to step S303. Alternatively, when the processing module 104 is implemented by the radio module 102, it receives the on / off state of the radio module 100, which is included in the at least one message M1, by interacting with the radio module 100. Then, it is determined whether the on / off state indicates that the radio module 100 is on. If yes, proceed to step S304; otherwise, proceed to step S303.

[0029] In step S303, when the processing module 104 is implemented by the radio module 100, in response to the on / off state indicating that the radio module 102 is off, a portion of the TX power ratio TXR2 of the radio module 102 (e.g., the power ratio portion of the TX power ratio TXR2 other than the power ratio corresponding to the reserved power amount) can be allocated to the TX power ratio TXR1 of the radio module 100, or the entire TX power ratio TXR2 of the radio module 102 can be allocated to the TX power ratio TXR1 of the radio module 100 to obtain adjusted TX power ratios A_TXR1 and A_TXR2. Additionally, when the processing module 104 is implemented by the radio module 102, in response to an on / off state indicating that the radio module 100 is off, a portion of the TX power ratio TXR1 of the radio module 100 (e.g., the power ratio portion of the TX power ratio TXR1 other than the power ratio corresponding to the reserved power amount) can be allocated to the TX power ratio TXR2 of the radio module 102, or the entire TX power ratio TXR1 of the radio module 100 can be allocated to the TX power ratio TXR2 of the radio module 102 to obtain adjusted TX power ratios A_TXR1 and A_TXR2.

[0030] In step S304, when the processing module 104 is implemented by the radio module 100, in response to the on / off state indicating that the radio module 102 is turned on, the processing module 104 receives information of the radio module 102 included in the at least one message M2 by interacting with the radio module 102, and dynamically adjusts the TX power ratio TXR1 of the radio module 100 and the TX power ratio TXR2 of the radio module 102 according to the information of the radio module 102 and the information of the radio module 100 included in the at least one message M1, so as to obtain the adjusted TX power ratios A_TXR1 and A_TXR2 respectively. Additionally, when the processing module 104 is implemented by the radio module 102, in response to an on / off state indicating that the radio module 100 is turned on, it receives information about the radio module 100 included in the at least one message M1 by interacting with the radio module 100, and dynamically adjusts the TX power ratio TXR1 of the radio module 100 and the TX power ratio TXR2 of the radio module 102 based on the information about the radio module 100 and the information about the radio module 102 included in the at least one message M2 to obtain adjusted TX power ratios A_TXR1 and A_TXR2.

[0031] In step S306, radio module 100 adjusts TX power limit TPL1 according to the adjusted TX power ratio A_TXR1 to generate adjusted TX power limit ATPL1. Similarly, radio module 102 adjusts TX power limit TPL2 according to the adjusted TX power ratio A_TXR2 to generate adjusted TX power limit ATPL2.

[0032] In step S308, radio module 100 controls its instantaneous power IP to make its average power AVP lower than or equal to the adjusted TX power limit ATPL1. Similarly, radio module 102 controls its instantaneous power IP to make its average power AVP lower than or equal to the adjusted TX power limit ATPL2.

[0033] In step S310, after controlling the average power AVP of radio module 100 to be lower than or equal to the adjusted TX power limit ATPL1 of radio module 100, radio module 100 calculates the at least one message M1 for interacting with radio module 102. Similarly, after controlling the average power AVP of radio module 102 to be lower than or equal to the adjusted TX power limit ATPL2 of radio module 102, radio module 102 calculates the at least one message M2 for interacting with radio module 100.

[0034] Because technical personnel in related fields read the above... Figure 1 The details of these steps are readily understood from the paragraphs illustrating radio module 100, radio module 102, and processing module 104; therefore, for the sake of brevity, further description is omitted here.

[0035] In summary, using the method of this invention and the associated radio modules, initially, under the condition that any one of the multiple radio modules only requires a TX power ratio less than a predetermined fixed ratio (i.e., one radio module will have unused TX power margin), the other radio modules in the multiple radio modules can utilize the TX power margin to dynamically adjust the TX power ratios of the other radio modules and the TX power ratio of any one of the multiple radio modules (e.g., increasing the TX power ratio of the other radio modules and correspondingly decreasing the TX power ratio of any one of the multiple radio modules). Subsequently, under the condition that any one of the multiple radio modules still only requires a current TX power ratio less than the previously adjusted TX power ratio (i.e., the one radio module will still have unused TX power margin), the other radio modules in the multiple radio modules can utilize the TX power margin for further dynamic adjustments. This improves ratio efficiency and performance.

[0036] Those skilled in the art will readily observe that various modifications and alterations can be made to the apparatus and method while maintaining the teachings of the present invention. Therefore, the above disclosure should be interpreted as being limited only by the scope of the appended claims.

Claims

1. A method for adjusting the transmit (TX) power ratio of a radio module, the method comprising: Map radio frequency (RF) exposure limits to TX power limits; Receive at least one message from at least one other radio module; The TX power ratio is adjusted based on at least one message from at least one other radio module to obtain an adjusted TX power ratio; as well as The TX power limit is adjusted according to the adjusted TX power ratio to generate the adjusted TX power limit of the radio module; The at least one message of the at least one other radio module includes the on / off status of the at least one other radio module; The step of adjusting the TX power ratio based at least one message from at least one other radio module to obtain an adjusted TX power ratio includes: In response to the on / off state indicating that the at least one other radio module is off, a portion of the TX power ratio of the at least one other radio module is allocated to the radio module if the at least one other radio module retains the required amount of power; or, in response to the on / off state indicating that the at least one other radio module is off, the entire TX power ratio of the at least one other radio module is allocated to the radio module.

2. The method according to claim 1, wherein, The step of adjusting the TX power ratio based at least one message from at least one other radio module to obtain an adjusted TX power ratio further includes: In response to the on / off state indicating that the at least one other radio module is turned on, the TX power ratio is dynamically adjusted based on at least one message from the at least one other radio module and at least one message from the radio module.

3. The method according to claim 2, wherein, The at least one message of the at least one other radio module and the at least one message of the radio module include: one or more configurations.

4. The method according to claim 2, wherein, The at least one message of the at least one other radio module and the at least one message of the radio module include: one or more TX performance metrics, one or more receive (RX) performance metrics, or one or more weighted information.

5. The method according to claim 2, wherein, The at least one message of the at least one other radio module and the at least one message of the radio module include: the previous TX power ratio, or the TX power ratio margin.

6. The method according to claim 4, wherein, The one or more TX performance metrics include at least one of the following: TX duty cycle, TX error vector magnitude (EVM), target power, throughput, modulation and coding scheme (MCS), block error rate (BLER), resource block (RB), transport block size (TBS), and TX packet error rate (TX PER).

7. The method according to claim 4, wherein, The one or more RX performance metrics include at least one of the following: RX duty cycle, modulation and coding scheme (MCS), block error rate (BLER), resource block (RB), received signal strength indication (RSSI), reference signal received power (RSRP), signal-to-noise ratio (SNR), signal-to-interference plus noise ratio (SINR), and RX packet error rate (RX PER).

8. The method according to claim 3, wherein, The one or more configurations are associated with at least one of the following: antenna, frequency band, beam, sub-band, one or more exposure condition indicators, simultaneous transmission status, mobile country code (MCC), mobile network code (MNC), modulation, bandwidth, maximum power reduction (MPR), path, duty cycle, and the combination of the frequency band with the Subscriber Identity Module (SIM).

9. The method according to claim 1, further comprising: Control the instantaneous power so that the average power is lower than or equal to the adjusted TX power limit.

10. The method according to claim 1, further comprising: Calculate at least one message from the radio module for use in interacting with the at least one other radio module.

11. A radio module for adjusting the transmit (TX) power ratio of a radio module, wherein, The radio module is arranged as follows: Map radio frequency (RF) exposure limits to TX power limits; Receive at least one message from at least one other radio module; The TX power ratio is adjusted based on at least one message from at least one other radio module to obtain an adjusted TX power ratio; as well as The TX power limit is adjusted according to the adjusted TX power ratio to generate the adjusted TX power limit of the radio module; The at least one message of the at least one other radio module includes the on / off status of the at least one other radio module; In response to the on / off state indicating that the at least one other radio module is off, the radio module allocates a portion of the TX power ratio of the at least one other radio module to the radio module if the at least one other radio module has a margin, or, in response to the on / off state indicating that the at least one other radio module is off, allocates the entire TX power ratio of the at least one other radio module to the radio module.

12. The radio module according to claim 11, wherein, In response to the on / off state indicating that the at least one other radio module is turned on, the radio module dynamically adjusts the TX power ratio based on at least one message from the at least one other radio module and at least one message from the radio module itself.

13. The radio module according to claim 12, wherein, The at least one message of the at least one other radio module and the at least one message of the radio module include: one or more configurations.

14. The radio module according to claim 12, wherein, The at least one message of the at least one other radio module and the at least one message of the radio module include: one or more TX performance metrics, one or more receive (RX) performance metrics, or one or more weighted information.

15. The radio module according to claim 12, wherein, The at least one message of the at least one other radio module and the at least one message of the radio module include: the previous TX power ratio, or the TX power ratio margin.

16. The radio module according to claim 14, wherein, The one or more TX performance metrics include at least one of the following: TX duty cycle, TX error vector magnitude (EVM), target power, throughput, modulation and coding scheme (MCS), block error rate (BLER), resource block (RB), transport block size (TBS), and TX packet error rate (TX PER).

17. The radio module according to claim 14, wherein, The one or more RX performance metrics include at least one of the following: RX duty cycle, modulation and coding scheme (MCS), block error rate (BLER), resource block (RB), received signal strength indication (RSSI), reference signal received power (RSRP), signal-to-noise ratio (SNR), signal-to-interference plus noise ratio (SINR), and RX packet error rate (RX PER).

18. The radio module according to claim 13, wherein, The one or more configurations are associated with at least one of the following: antenna, frequency band, beam, sub-band, one or more exposure condition indicators, simultaneous transmission status, mobile country code (MCC), mobile network code (MNC), modulation, bandwidth, maximum power reduction (MPR), path, duty cycle, and the combination of the frequency band with the Subscriber Identity Module (SIM).

19. The radio module according to claim 11, wherein, The radio module is also configured to control instantaneous power so that the average power is below or equal to the adjusted TX power limit.

20. The radio module according to claim 11, wherein, The radio module is also configured to calculate at least one message for interacting with the at least one other radio module.

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