CN117156531A - Method for adjusting transmission power ratio of radio module and radio system - Google Patents
Method for adjusting transmission power ratio of radio module and radio system Download PDFInfo
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- 238000010521 absorption reaction Methods 0.000 claims description 26
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- 238000004364 calculation method Methods 0.000 claims description 8
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
- H04W52/365—Power headroom reporting
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power
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Abstract
The invention discloses a method for adjusting the transmission power ratio of a radio module, which comprises the following steps: dividing a plurality of radio modules into a plurality of radio groups according to a radio frequency rule, wherein the plurality of radio modules comprise the radio modules; mapping a radio frequency exposure limit to a transmit power limit; interacting with at least one other radio module to adjust the transmission power ratio to obtain at least one adjusted transmission power ratio, wherein the plurality of radio modules includes the at least one other radio module, and the radio module and the at least one other radio module are both included in a same radio group of the plurality of radio groups; and adjusting the transmit power limit according to the at least one adjusted transmit power ratio to generate an adjusted transmit power limit for the radio module.
Description
[ field of technology ]
The present invention relates to the field of Radio Frequency (RF) technology, and more particularly, to a method and a radio system for adjusting a transmit power ratio of a radio module.
[ background Art ]
Today, RF technology often occurs in a User Equipment (UE), however, excessive RF exposure may cause harm to the human body, and thus, official units of different countries (e.g., federal communications commission (federal communications commission, FCC) in the united states, innovation, science, and economic commission (conformite europeenne, CE) in canada) and european union (ISED)) formulate a time-average (time-average) RF exposure limit to limit a time-average RF exposure of a radio module in the user equipment, for example, a frequency band of the radio module is less than 6 gigahertz (gigahertz, GHz), the time-average RF exposure is quantified at a time-average specific absorption rate (specific absorption rate, SAR), and a frequency band of the radio module is not less than 6 gigahertz, the time-average RF exposure is quantified at a time-average Power Density (PD). In addition, since the time-averaged radio frequency exposure is proportional to a transmission power of the radio module, the time-averaged radio frequency exposure can be made to conform to the time-averaged radio frequency exposure limit by controlling the transmission power of the radio module.
For simultaneous multi-radio access technology (multi-radio access technology, multi-RAT) transmission (e.g., 2G, 3G, 4G, FR1, FR2, wireless network (wireless fidelity, wi-Fi) and Bluetooth (BT)), the official sets a total exposure (total exposure ratio, TER) that must be less than or equal to 1 (i.e., TER-1), how to properly allocate the transmission power of a plurality of radio modules in the user equipment to meet the specification and performance requirements at the same time becomes an important issue, for an existing transmission power allocation method, all radio modules are considered as a single radio group (radio group), and all radio exposures caused by the radio modules in the single radio group are combined to calculate the total exposure of the single radio group, which makes it difficult for individual radio modules to always comply with the exposure specification, and furthermore, only with a predetermined fixed ratio to allocate the maximum available transmission power ratio to the radio modules, even though the margin of the radio modules cannot be adjusted with a predetermined ratio, and the margin of the power of the radio modules cannot be adjusted with a novel method (i.e., a margin of the radio modules is not used).
[ invention ]
It is therefore an object of the present invention to provide a method and a radio system for adjusting the transmit power ratio of radio modules, which divide a plurality of radio modules into a plurality of radio groups according to a radio frequency specification related to a specific absorption peak position separation ratio (specific absorption rate to peak location separation ratio, splr) to calculate respective total exposure rates of the plurality of radio groups, so as to solve the above-mentioned problems.
According to an embodiment of the present invention, a method for adjusting a transmit power ratio of a radio module is provided. The method comprises the following steps: dividing a plurality of radio modules into a plurality of radio groups according to a radio frequency rule, wherein the plurality of radio modules comprise the radio modules; mapping a radio frequency exposure limit to a transmit power limit; interacting with at least one other radio module to adjust the transmission power ratio to obtain at least one adjusted transmission power ratio, wherein the plurality of radio modules includes the at least one other radio module, and the radio module and the at least one other radio module are both included in a same radio group of the plurality of radio groups; and adjusting the transmit power limit according to at least one adjusted transmit power ratio to produce an adjusted transmit power limit for the radio module.
According to an embodiment of the present invention, a radio system for adjusting a transmission power ratio of a radio module is provided. The radio system comprises a processing circuit and the radio module, wherein the processing circuit is used for dividing a plurality of radio modules into a plurality of radio groups according to a radio frequency rule, and the radio modules comprise the radio modules. The radio module is used for: mapping a radio frequency exposure limit to a transmit power limit; interacting with at least one other radio module to adjust the transmission power ratio to obtain at least one adjusted transmission power ratio, wherein the plurality of radio modules includes the at least one other radio module, and the radio module and the at least one other radio module are both included in a same radio group of the plurality of radio groups; and adjusting the transmit power limit according to at least one adjusted transmit power ratio to produce an adjusted transmit power limit for the radio module.
One of the benefits of the present invention is that by the method and related radio system of the present invention, a plurality of radio modules can be separated into a plurality of radio groups according to a radio frequency specification associated with a specific absorption peak position separation ratio to calculate respective total exposure rates of the plurality of radio groups, which makes the plurality of radio groups liable to conform to the total exposure rate specification and thus can increase design flexibility, and further, for each radio group, at the beginning, only one transmission power ratio of any one radio module among radio groups needs to be smaller than a predetermined fixed ratio (i.e., any one radio module will have an unused transmission power margin), and then, in the case where the transmission power ratio of any one radio module among radio groups can be dynamically adjusted by using the transmission power margin and the transmission power ratio of any one radio module (e.g., the transmission power ratio of any one radio module is increased and correspondingly decreased), then, in the case where the transmission power ratio of any one radio module among radio groups needs to be further adjusted by using the transmission power ratio of any one radio module among the other than the current radio modules can be further adjusted by using the current ratio.
[ description of the drawings ]
FIG. 1 is a schematic diagram of an electronic device according to an embodiment of the invention.
Fig. 2 is a timing diagram of the activation of the time tick signals for multiple radio groups in accordance with an embodiment of the present invention.
Fig. 3 is a timing diagram of the activation of the time tick signals of multiple radio groups according to another embodiment of the invention.
Fig. 4 is a diagram illustrating an adjustment between two radio modules in the same radio group according to an embodiment of the present invention.
Fig. 5 is a schematic diagram of a control scheme of instantaneous power of a radio module according to an embodiment of the invention.
Fig. 6 is a flow chart of a method for adjusting the transmit power ratio of a radio module in accordance with an embodiment of the present invention.
Reference numerals:
10, an electronic device;
a radio system;
100,102,104 radio set;
105, a storage device;
106, a processing circuit;
108,110,112,114,116,118,120,122 radio module;
200. a processing module;
g1, G2 radio group;
band_1, band_2;
t0, t1, t2, t3: time points;
weight_i, WEIGHT information;
m1, M2 is at least one message;
a_TXR1, a_TXR2: adjusted transmit power ratio;
P_CAP, upper power limit;
IP, instantaneous power;
AVP average power;
ATPL1, ATPL2: adjusted transmit power limit;
s600, S602, S604, S605, S606, S608, S610, S612.
[ detailed description ] of the invention
Certain terms are used throughout the following description and claims to refer to particular system components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This document does not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to.
FIG. 1 is a schematic diagram of an electronic device 10 according to an embodiment of the invention. For example, but not limited to, the electronic device 10 may be a portable device (e.g., a mobile phone, a portable device, or a tablet), as shown in fig. 1, the electronic device 10 may include a radio system 12 and a storage device 105, wherein the radio system 12 may include a plurality of radio sets (radio sets) 100, 102, 104 and a processing circuit 106, the radio set 100 may include a plurality of radio modules 108, 110, 112, 114, 116, the radio set 102 may include a plurality of radio modules 118, 120, and the radio set 104 may include a radio module 122. Each of the radios 108, 110, 112, 114, 116, 118, 120, and 122 may include communication circuitry corresponding to a frequency band (sub-6) below 6 gigahertz (GHz), millimeter wave (mmWave), wireless network (wireless fidelity, wi-Fi), bluetooth (BT), zigbee (Zigbee), global positioning system (global positioning system, GPS), internet of vehicles (vehicle to everything, V2X), and/or non-terrestrial network (non-terrestrial networks, NTN), but the present invention is not limited thereto, for example, the radio set 100 may be a cellular radio set corresponding to sub-6 (i.e., the radios 108, 110, 112, 114, and 116 include communication circuitry corresponding to sub-6), the radio set 102 may be a cellular radio set corresponding to sub-6 (i.e., the radios 118 and 120 include communication circuitry corresponding to Bluetooth network 8662, the radio set 104 may be a cellular radio set corresponding to Bluetooth network (i.e., the radio set) and/or the radio set corresponding to Bluetooth network(s) connectivity system).
The processing circuit 106 may be a single-core processor or a multi-core processor, the storage 105 is a non-transitory machine-readable medium and is configured to store a computer program code PROG, the electronic device 10 may be regarded as a computer system utilizing a computer program product comprising a computer readable medium having the computer program code PROG, the processing circuit 106 having software execution capabilities, the computer program code PROG, when loaded and executed by the processing circuit 106, instructs the processing circuit 106 to partition (separate) a plurality of radio sets (e.g., the radio sets 100, 102 and 104) into a plurality of radio groups (radio groups) according to a Radio Frequency (RF) specification, wherein the radio frequency specification is related to a specific absorption peak position separation ratio (specific absorption rate to peak location separation ratio, SPLSR). Specifically, a specific absorption peak position separation ratio formula can be expressed as follows:
wherein "SAR 1 "specific absorption rate (specific absorption rate, SAR) representing a radio module," SAR 2 "represents the specific absorption rate of another radio module," and "R" is a fraction between a specific absorption rate peak position of the radio module and a specific absorption rate peak position of the other radio module Distance apart.
For a 1g SAR, the specific absorption rate peak position separation ratio formula is specified to be less than or equal to 0.04 (i.e) For a 10g SAR, the specific absorption rate peak position separation ratio formula is specified to be less than or equal to 0.1 (i.e. +.>) In case any one radio module of a radio group and any one radio module of another radio group meet the above-mentioned specification for the specific absorption peak position separation ratio, the total exposure rate (total exposure ratio, TER) calculation of the radio group and the total exposure rate calculation of the other radio group may be independent (independent).
In the present embodiment, the processing circuit 106 may divide the radio sets 100 and 102 into a plurality of radio groups G1 and G2 according to the specification of the specific absorption rate peak position separation ratio, and in particular, may divide the radio module 108 included in the radio set 100 and the radio module 118 included in the radio set 102 into the radio group G1 and the radio modules 112, 114 and 116 in the radio set 100 and the radio module 120 in the radio set 102 into the radio group G2. Since any one of the radio groups G1 and any one of the radio groups G2 (e.g., the radio module 108 and the radio module 112) satisfy the above-described specification for the specific absorption peak position separation ratio, the total exposure calculation of the radio group G1 and the total exposure calculation of the radio group G2 may be independent, that is, a sum of the total exposure of any one of the radio groups G1 and the total exposure of any one of the radio groups G2 may be greater than 1, for example, a sum of the total exposure of the radio module 108 in the radio group G1 and the total exposure of the radio module 112 in the radio group G2 may be greater than 1.
However, the radio group separation in the present embodiment is for illustration only, and the present invention is not limited thereto, and in some embodiments, the processing circuit 106 may separate the radio sets 100 and 104 into a radio group according to a specification for the specific absorption rate peak position separation ratio, in particular, the radio modules 110 and 112 included in the radio set 100 and the radio module 122 included in the radio set 104 into the radio group. In some embodiments, the processing circuitry 106 may separate the radio sets 102 and 104 into radio groups according to a specification for the specific absorption rate peak location separation ratio, and in particular, separate the radio modules 118 included in the radio set 102 and the radio modules 122 included in the radio set 104 into the radio groups. Such alternative designs fall within the scope of the invention.
In addition, a plurality of indicators (indicators) may be utilized to identify the radio groups G1 and G2 between the radio sets 100 and 102.
List one
An example of identifying the radio groups G1 and G2 between the radio sets 100 and 102 using the indicators #a1 and #a2 is shown, wherein the indicator #a1 indicates that the radio module 108 in the radio set 100 and the radio module 118 in the radio set 102 are located in the radio group G1, and the indicator #a2 indicates that the radio modules 112, 114 and 116 in the radio set 100 and the radio module 120 in the radio set 102 are located in the radio group G2.
In addition, for each of the radio groups G1 and G2, the processing circuit 106 may be further configured to start to activate (activate) a pair of time slots (time slots) corresponding to each of the radio groups according to one or more configurations corresponding to each of the radio groups, such as, but not limited to, an antenna (antenna), a frequency band (band), a beam (beam), a technology (technology), a sub-band (sub-band), one or more exposure condition indicators (exposure condition index), a synchronous transmission state (simultaneous transmitted state), a mobile device country code (mobile country code, MCC), a mobile device network code (mobile network code, MNC), a modulation (modulation), a bandwidth (band), a maximum power reduction (maximum power reduction, MPR), a path (duty), a duty cycle (duty), and a SIM module (SIM) according to at least one embodiment of the invention as shown in fig. 2, the SIM module 23 is activated according to at least one of the embodiment of the invention as shown in fig. 2. In this embodiment, the one or more configurations are BAND-dependent, as shown in fig. 2, and a BAND band_1 of the radio group G1 is activated at time t0, at which time the processing circuit 106 is operable to start activating the clock signal corresponding to the radio group G1 to calculate the total exposure rate of the radio group G1. At time t1, a BAND band_2 of the radio group G2 is activated, and the processing circuit 106 is configured to start activating the clock signal corresponding to the radio group G2 to calculate the total exposure rate of the radio group G2. As such, the total exposure calculation for radio group G1 and the total exposure calculation for radio group G2 may be independent.
Fig. 3 is a timing diagram of the activation of the time tick of the radio groups G1 and G2 according to another embodiment of the invention. The difference between the timing diagram shown in fig. 2 and the timing diagram shown in fig. 3 is that during the timing shown in fig. 3 the BAND band_2 of the radio group G2 is deactivated (inactive) for at least a period of TIME, for example, the BAND bnad_2 of the radio group G2 is deactivated from the TIME point t2, and after the at least period of TIME has elapsed (for example, from the TIME point t2 to the TIME point t3; marked "p_time" in fig. 3 for brevity), the processing circuit 106 is operable to start to deactivate the TIME-tick signal corresponding to the radio group G2 at the TIME point t3 (for example, to turn off the radio group G2) to stop calculating the total exposure rate of the radio group G2.
Fig. 4 is a schematic diagram illustrating an adjustment between two radio modules in the same radio group according to an embodiment of the present invention, for better understanding, a radio group G1 including radio modules 108 and 118 in fig. 1 is taken as an example. As shown in fig. 4, the processing module 200 may include circuitry for receiving WEIGHT information weight_i from a user or in different situations, wherein the WEIGHT information weight_i may be used to allocate a transmit power ratio TXR1 of the radio module 108 and a transmit power ratio TXR2 of the radio module 118. For example, the WEIGHT information WEIGHT_I may be a predetermined fixed ratio for the transmission power ratios TXR1 and TXR2, it should be noted that the processing module 200 may be implemented by one of the radio modules 108 and 118 (i.e., the processing module 200 may be part of the radio module 108 or 118), and the processing module 200 may be further configured to interact with the other one of the radio modules 108 and 118 to receive at least one message from the other radio module for dynamically adjusting the transmission power ratios TXR1 and TXR2. In the present embodiment, the dynamic adjustment of the transmission power ratio is performed between two radio modules in the same radio group (e.g., the radio modules 108 and 118 in the radio group G1), however, the present invention is not limited thereto, and in some embodiments, the dynamic adjustment of the transmission power ratio may be performed between more than two radio modules (e.g., the radio modules 112, 114, 116 and 120 in the radio group G2), and in fact, any one radio module may interact with at least one other radio module in the same radio group to receive at least one message, and dynamically adjust the transmission power ratio of the any radio module according to the at least one message, which may be implemented by the processing module 200, and these alternative designs fall within the scope of the present invention.
In this embodiment, the radio module 108 may be configured to receive a time-averaged radio frequency exposure limit (time-averaged RF exposure limit; hereinafter referred to as a "radio frequency exposure limit" for brevity) defined by the official entity, wherein the radio frequency exposure limit corresponds to the radio module 108. Since the radio frequency exposure limit is proportional to the transmit power of the radio module 108, the radio module 108 may be further configured to map the radio frequency exposure limit to a transmit power limit TPL1 of the radio module 108, and in particular, the radio frequency exposure limit may be a total exposure rate, wherein the total exposure rate may include a normalized average specific absorption rate limit and a normalized average Power Density (PD) limit, and the total exposure rate is required to be less than or equal to 1 (i.e., ter.ltoreq.1). The radio module 108 may perform a test or a simulation to find a first normalized average transmit power limit mapped to the normalized average specific absorption rate limit and a second normalized average transmit power limit mapped to the normalized average power density limit, wherein the transmit power limit TPL1 includes the first normalized average transmit power limit and the second normalized average transmit power limit. However, the present invention is not limited thereto, and in some embodiments, the user may directly perform a test or simulation to find out the transmit power limit TPL1, i.e., the rf exposure limit may also be directly mapped to the transmit power limit TPL1 of the radio module 108 by the user. Similarly, the radio module 118 may be configured to receive a radio frequency exposure limit specified by an official entity, wherein the radio frequency exposure limit corresponds to the radio module 118. Since the radio frequency exposure limit is proportional to the transmit power of the radio module 118, the radio module 118 may be further configured to map the radio frequency exposure limit to a transmit power limit TPL2 of the radio module 118, and for brevity, detailed description will not be repeated here for similar matters of this embodiment.
In the case of implementing the processing module 200 by the radio module 108, the processing module 200 may interact with the radio module 118 to receive at least one message M2 from the radio module 118 and adjust the transmit power ratios TXR1 and TXR2 to obtain adjusted transmit power ratios a_txr1 and a_txr2, respectively, based on at least one message M2, for example, the processing module 200 may adjust the transmit power ratios TXR1 and TXR2 to obtain adjusted transmit power ratios a_txr1 and a_txr2, respectively, based on at least one message M2 and at least one message M1 calculated by the radio module 108, and for example, the processing module 200 may adjust the transmit power ratios TXR1 and TXR2 to obtain adjusted transmit power ratios a_txr1 and a_txr2, respectively. It should be noted that in some embodiments, in the case that the processing module 200 cannot obtain at least one message M2 from the radio module 118 for some reasons, the processing module 200 may adjust the transmit power ratios TXR1 and TXR2 to obtain the adjusted transmit power ratios a_txr1 and a_txr2, respectively, based on the at least one message M1 alone, in some embodiments, after the processing module 200 receives the at least one message M2 from the radio module 118 by interacting with the radio module 118, the at least one message M2 may be stored in a memory (not shown in fig. 4), and the processing module 200 may adjust the transmit power ratios TXR1 and TXR2 to obtain the adjusted transmit power ratios a_txr1 and a_txr2, respectively, based on the at least one message M1 alone, which alternative designs fall within the scope of the present invention. The radio module 108 may be configured to adjust the transmit power limit TPL1 according to the adjusted transmit power ratio a_txr1 to generate an adjusted transmit power limit ATPL1 for the radio module 108.
In addition, in the case of implementing the processing module 200 by the radio module 118, the processing module 200 may interact with the radio module 108 to receive at least one message M1 from the radio module 108 and adjust the transmit power ratios TXR1 and TXR2 to obtain the adjusted transmit power ratios a_txr1 and a_txr2, respectively, based on at least one message M1, for example, the processing module 200 may adjust the transmit power ratios TXR1 and TXR2 to obtain the adjusted transmit power ratios a_txr1 and a_txr2, respectively, based on at least one message M1 and at least one message M2 calculated by the radio module 118, for example, the processing module 200 may adjust the transmit power ratios TXR1 and TXR2 to obtain the adjusted transmit power ratios a_txr1 and a_txr2, respectively. It should be noted that in some embodiments, in the case that the processing module 200 cannot obtain at least one message M1 from the radio module 108 for some reasons, the processing module 200 may adjust the transmit power ratios TXR1 and TXR2 to obtain the adjusted transmit power ratios a_txr1 and a_txr2, respectively, based on the at least one message M2 only, in some embodiments, after the processing module 200 receives the at least one message M1 from the radio module 108 by interacting with the radio module 108, the at least one message M1 may be stored in a memory (not shown in fig. 4), and the processing module 200 may adjust the transmit power ratios TXR1 and TXR2 to obtain the adjusted transmit power ratios a_txr1 and a_txr2, respectively, based on the at least one message M2, which alternative designs fall within the scope of the present invention. The radio module 118 may be configured to adjust the transmit power limit TPL2 based on the adjusted transmit power ratio a_txr2 to generate an adjusted transmit power limit ATPL2 for the radio module 118.
The at least one message M1 and the at least one message M2 may include an on/off state of the radio module 108 and an on/off state of the radio module 118, respectively, wherein the off state indicates that the corresponding radio module is not transmitting for a period of time (e.g., the corresponding radio module is in a power-off mode, a flight mode, a sleep mode, a discontinuous transmission (discontinuous transmission, DTX) mode, a call drop mode, or a no-user identity module (subscriber identity module, SIM) card mode), and 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 the power-off mode, the flight mode, the sleep mode, the discontinuous transmission mode, the call drop mode or the user identity module card-free mode, the corresponding radio module is in the on state. In addition, each of the at least one message M1 and the at least one message M2 may further include certain information of the corresponding radio module, such as, but not limited to, a previous transmit power ratio, a transmit power ratio margin (margin), one or more transmit performance indicators, one or more receive performance indicators, one or more WEIGHT information (e.g., WEIGHT information_i), and/or one or more configurations.
The one or more transmission performance indicators may include at least one of a transmission duty cycle, a transmission error vector magnitude (error vector magnitude, EVM), a target power, a throughput (throughput), a modulation and coding scheme (modulation and coding scheme, MCS), a block error rate (BLER), a source block (RB), a transport block size (transmission block size, TBS), and a transmit packet error rate (TX packet error rate, TX PER).
The one or more reception performance indicators may include at least one of a reception duty cycle, a modulation and coding scheme, a block error rate, a source block, a received signal strength indicator (received signal strength indication, RSSI), a reference signal received power (reference signal RX power, RSRP), a signal to noise ratio (signal to noise ratio, SNR), a signal to interference and noise ratio (signal to interference plus noise ratio, SINR), and a received packet error rate (RX packet error rate, RX PER).
The one or more configurations may relate to at least one of an antenna, a frequency band, a beam, a technology, a sub-band, one or more exposure criteria, a synchronization status, a mobile device country code, a mobile device network code, a modulation, a bandwidth, a maximum power reduction, a path, a duty cycle, and a combination of the frequency band and a user identity module.
In detail, in the case of implementing the processing module 200 by the radio module 108, the processing module 200 may initially interact with the radio module 118 to receive the on/off state of the radio module 118 included in the at least one message M2, and the processing module 200 may allocate at least a portion (e.g., a portion or all) of the transmit power ratio TXR2 of the radio module 118 to the transmit power ratio TXR1 of the radio module 108 and reserve a margin for the radio module 118 to obtain the adjusted transmit power ratios a_txr1 and a_txr2, wherein the margin may be dynamically calculated according to the at least one message M1 and/or the at least one message M2 in response to the on/off state indicating that the radio module 118 is off. In response to the on/off status indicating that the radio module 118 is on, the processing module 200 may interact with the radio module 118 to receive information of the radio module 118 included in the at least one message M2, and dynamically adjust the transmit power ratio TXR1 of the radio module 108 and the transmit power ratio TXR2 of the radio module 118 according to the information of the radio module 118 and the information of the radio module 108 included in the at least one message M1 calculated by the radio module 108 to obtain adjusted transmit power ratios a_txr1 and a_txr2. For example, in the case where the WEIGHT information weight_i indicates that the predetermined fixed ratio for the radio module 118 is 0.4 and the actually used transmit power ratio of the radio module 118 is 0.2, the transmit power ratio margin of the radio module 118 is 0.2, and the processing module 200 may allocate the transmit power ratio margin of the radio module 118 to the radio module 108 to dynamically adjust the transmit power ratios TXR1 and TXR2 to obtain the adjusted transmit power ratios a_txr1 and a_txr2, respectively (e.g., increase the transmit power ratio TXR1 and correspondingly decrease the transmit power ratio TXR2 to obtain the adjusted transmit power ratios a_txr1 and a_txr2, respectively). Then, the radio module 108 may adjust the transmit power limit TPL1 according to the adjusted transmit power ratio a_txr1 to generate an adjusted transmit power limit ATPL1 for the radio module 108.
Similarly, where the processing module 200 is implemented by the radio module 118, initially, the processing module 200 may interact with the radio module 108 to receive an on/off state of the radio module 108 included in the at least one message M1, and in response to the on/off state indicating that the radio module 108 is off, the processing module 200 may allocate at least a portion (e.g., a portion or all) of the transmit power ratio TXR1 of the radio module 108 to the transmit power ratio TXR2 of the radio module 118 and reserve a margin for the radio module 108 to obtain the adjusted transmit power ratios a_txr1 and a_txr2, wherein the margin may be dynamically calculated based on the at least one message M1 and/or the at least one message M2. In response to the on/off status indicating that the radio module 108 is on, the processing module 200 may interact with the radio module 108 to receive information of the radio module 108 included in the at least one message M1, and dynamically adjust the transmit power ratio TXR1 of the radio module 108 and the transmit power ratio TXR2 of the radio module 118 according to the information of the radio module 108 and the information of the radio module 118 included in the at least one message M2 calculated by the radio module 118 to obtain adjusted transmit power ratios a_txr1 and a_txr1. Then, the radio module 118 may adjust the transmit power limit TPL2 according to the adjusted transmit power ratio a_txr2 to generate an adjusted transmit power limit ATPL2 for the radio module 118.
After generating the adjusted transmit power limit ATPL1, the radio module 108 may control an instantaneous power (instantaneous power) IP of the radio module 108 such that an average power (average power) AVP of the radio module 108 is less than or equal to the adjusted transmit power limit ATPL1. Similarly, after generating the adjusted transmit power limit ATPL2, the radio module 118 may control an instantaneous power IP of the radio module 118 such that an average power AVP of the radio module 118 is less than or equal to the adjusted transmit power limit ATPL2. In particular, referring to fig. 5, fig. 5 is a schematic diagram of a control scheme of instantaneous power IP of a radio module 108/118 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 transmission power of the radio module 108/118. As shown in fig. 5, in order to comply with the regulations of the radio exposure limit, the radio module 108/118 may be configured to control the instantaneous power IP of the radio module 108/118 to be lower than a power upper limit p_cap such that the average power AVP of the radio module 108/118 is lower than or equal to the adjusted transmit power limit ATPL1/ATPL2, since the operation of the power upper limit p_cap is well known to those skilled in the art, and the focus of the present invention is on the radio group separation and the dynamic adjustment of the transmit power ratio (e.g., the transmit power ratio TXR1/TXR2 of the radio module 108/118 in the radio group G1) for the radio modules in the same radio group, the operation of the power upper limit p_cap is not described in detail herein for brevity.
After the average power AP of the radio module 108 is controlled to be less than or equal to the adjusted transmit power limit ATPL1 of the radio module 108, the radio module 108 may be further configured to calculate at least one message M1 of the radio module 108 for interaction with the radio module 118, e.g., the radio module 108 may calculate a previous transmit power ratio, a transmit power ratio margin, one or more transmit performance indicators, one or more receive performance indicators, one or more weight information, and/or one or more configurations. Similarly, after the average power AP of the radio module 118 is controlled to be lower than or equal to the adjusted transmit power limit ATPL2 of the radio module 118, the radio module 118 may be further configured to calculate at least one message M2 of the radio module 118 for interaction with the radio module 108, and detailed description thereof will not be repeated herein for brevity.
Fig. 6 is a flow chart of a method for adjusting the transmit power ratio of a radio module in accordance with an embodiment of the present invention. If the same result is obtained, the steps are not necessarily performed in sequence in full following the flow shown in fig. 6, for example, the method shown in fig. 6 may be implemented by the radio system 12 (in particular, the processing circuit 106) shown in fig. 1 and the radio modules 108, 118 and 200 shown in fig. 4 for the separation of the radio sets 100 and 102 and the adjustment of the transmit power ratios TXR1 and TXR2 of the radio modules 108 and 118 included in the same radio group G1.
In step S600, the radio sets 100 and 102 are separated into radio groups G1 and G2 according to the specification of the specific absorption rate peak position separation ratio, in particular, the radio module 108 in the radio set 100 and the radio module 118 in the radio set 102 are separated into the radio group G1, and the radio modules 112, 114 and 116 in the radio set 100 and the radio module 120 in the radio set 102 are separated into the radio group G2.
In step S602, the radio module 108 maps the radio frequency exposure limit corresponding to the radio module 108 to the transmission power limit TPL1, and similarly, the radio module 118 maps the radio frequency exposure limit corresponding to the radio module 118 to the transmission power limit TPL2.
In step S604, when the processing module 200 is implemented by the radio module 108, the on/off state of the radio module 118 included in the at least one message M2 is received by interaction with the radio module 118, and then it is determined whether the on/off state indicates that the radio module 118 is on, if so, step S606 is performed; if not, the process advances to step S605. In addition, when the processing module 200 is implemented by the radio module 118, the on/off state of the radio module 108 included in the at least one message M1 is received by interaction with the radio module 108, and then, it is determined whether the on/off state indicates that the radio module 108 is on, if so, step S606 is performed; if not, the process advances to step S605.
In step S605, when the processing module 200 is implemented by the radio module 108, at least a portion (e.g., a portion or all) of the transmission power ratio TXR2 of the radio module 118 is allocated to the transmission power ratio TXR1 of the radio module 108 and a margin is reserved for the radio module 118 in response to the on/off status indicating that the radio module 118 is off, so as to obtain the adjusted transmission power ratios a_txr1 and a_txr2. In addition, when the processing module 200 is implemented by the radio module 118, the transmit power ratio TXR1 of at least a portion (e.g., a portion or all) of the radio module 108 is allocated to the transmit power ratio TXR2 of the radio module 118 and a margin is reserved for the radio module 108 in response to the on/off status indicating that the radio module 108 is off, so as to obtain adjusted transmit power ratios a_txr1 and a_txr2.
In step S606, when the processing module 200 is implemented by the radio module 108, the radio module 118 is turned on in response to the on/off status indication, the information of the radio module 118 included in the at least one message M2 is received by interacting with the radio module 118, and the transmission power ratio TXR1 of the radio module 108 and the transmission power ratio TXR2 of the radio module 118 are dynamically adjusted according to the information of the radio module 118 and the information of the radio module 108 included in the at least one message M1, so as to obtain adjusted transmission power ratios a_txr1 and a_txr2, respectively. In addition, when the processing module 200 is implemented by the radio module 118, the radio module 108 is turned on in response to the on/off state indication, the information of the radio module 108 included in the at least one message M1 is received by interacting with the radio module 108, and the transmission power ratio TXR1 of the radio module 108 and the transmission power ratio TXR2 of the radio module 118 are dynamically adjusted according to the information of the radio module 108 and the information of the radio module 118 included in the at least one message M2, so as to obtain the adjusted transmission power ratios a_txr1 and a_txr2, respectively.
In step S608, the radio module 108 adjusts the transmit power limit TPL1 according to the adjusted transmit power ratio a_txr1 to produce an adjusted transmit power limit ATPL1, and similarly, the radio module 118 adjusts the transmit power limit TPL2 according to the adjusted transmit power ratio a_txr2 to produce an adjusted transmit power limit ATPL2.
In step S610, the radio module 108 controls the instantaneous power IP of the radio module 108 such that the average power AVP of the radio module 108 is lower than or equal to the adjusted transmit power limit ATPL1, and similarly, the radio module 118 controls the instantaneous power IP of the radio module 118 such that the average power AVP of the radio module 118 is lower than or equal to the adjusted transmit power limit ATPL2.
In step S612, after the average power AVP of the radio module 108 is controlled to be lower than or equal to the adjusted transmit power limit ATPL1, the radio module 108 calculates at least one message M1 for interaction with the radio module 118, and similarly, after the average power AVP of the radio module 118 is controlled to be lower than or equal to the adjusted transmit power limit ATPL2, the radio module 118 calculates at least one message M2 for interaction with the radio module 108.
Since the skilled artisan can readily understand the operation of the steps shown in fig. 6 through the description of the processing circuit 106 shown in fig. 1 and the radio modules 108, 118 and 200 shown in fig. 4, and the adjustment of the transmit power ratio of the radio modules 112, 114, 116 and 120 included in the radio group G2 is similar to the adjustment of the transmit power ratio of the radio modules 108 and 118 included in the radio group G1, the description is omitted herein for brevity.
In summary, by means of the method and related radio system of the present invention, a plurality of radio modules may be separated into a plurality of radio groups according to a radio frequency specification associated with a specific absorption peak position separation ratio, such that the respective total exposure of the plurality of radio groups is calculated, which makes the plurality of radio groups liable to conform to the total exposure specification and thus may increase design flexibility, and, for each radio group, at the beginning, only one transmit power ratio of any one of the radio groups needs to be smaller than a predetermined fixed ratio (i.e. the any one of the radio modules may have an unused transmit power headroom), and then, for each radio group, other radio modules of the radio groups may be able to dynamically adjust the transmit power ratio of the other radio modules and the transmit power ratio of the any one of the radio modules using the transmit power headroom (e.g. increasing the transmit power ratio of the other radio modules and correspondingly decreasing the transmit power ratio of the any one of the radio modules), and then, for each radio group may be able to further improve the current transmit power ratio of any one of the radio modules using the unused radio modules by a further ratio than the current power ratio.
The foregoing description is only of the preferred embodiments of the invention, and all changes and modifications that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (30)
1. A method for adjusting a transmit power ratio of a radio module, comprising:
dividing a plurality of radio modules into a plurality of radio groups according to a radio frequency rule, wherein the plurality of radio modules comprise the radio modules;
mapping a radio frequency exposure limit to a transmit power limit;
interacting with at least one other radio module to adjust the transmission power ratio to obtain at least one adjusted transmission power ratio, wherein the plurality of radio modules includes the at least one other radio module, and the radio module and the at least one other radio module are both included in a same radio group of the plurality of radio groups; and
the transmit power limit is adjusted according to the at least one adjusted transmit power ratio to generate an adjusted transmit power limit for the radio module.
2. The method of claim 1 wherein the radio frequency specification is related to a specific absorption rate peak location separation ratio and a total exposure calculation for each of the plurality of radio groups is independent.
3. The method of claim 1 wherein the step of interacting with the at least one other radio module to adjust the transmit power ratio to obtain the at least one adjusted transmit power ratio comprises: receiving at least one message of the at least one other radio module; and
the transmit power ratio is adjusted according to the at least one message of the at least one other radio module to obtain the at least one adjusted transmit power ratio.
4. The method of claim 3 wherein the at least one message of the at least one other radio module includes an on/off state of the at least one other radio module.
5. The method of claim 4 wherein the step of adjusting the transmit power ratio based on the at least one message of the at least one other radio module to obtain the at least one adjusted transmit power ratio comprises:
and allocating a transmit power ratio of the at least one other radio module to the radio module in response to the on/off status indicating that the at least one other radio module is off, and reserving a margin for the at least one other radio module.
6. The method of claim 4 wherein the step of adjusting the transmit power ratio based on the at least one message of the at least one other radio module to obtain the at least one adjusted transmit power ratio comprises:
the transmit power ratio is dynamically adjusted based on the at least one message of the at least one other radio module and the at least one message of the radio module in response to the on/off status indicating that the at least one other radio module is on.
7. The method of claim 6, wherein the at least one message of the at least one other radio module and each of the at least one message of the radio module comprises a previous transmit power ratio, a transmit power ratio margin, one or more transmit performance indicators, one or more receive performance indicators, one or more weight information, or one or more configurations.
8. The method of claim 7 wherein the at least one message of the at least one other radio module and the at least one message of the radio module each include the one or more transmit performance indicators, and the one or more transmit performance indicators include at least one of a transmit duty cycle, a transmit error vector magnitude, a target power, a throughput, a modulation and coding scheme, a block error rate, a source block, a transmit block size, and a transmit packet error rate.
9. The method of claim 7 wherein the at least one message of the at least one other radio module and the at least one message of the radio module each include the one or more reception performance indicators, and the one or more reception performance indicators include at least one of a reception duty cycle, a modulation and coding scheme, a block error rate, a source block, a received signal strength indication, a reference signal received power, a signal to noise ratio, a signal to interference and noise ratio, and a received packet error rate.
10. The method of claim 7 wherein the at least one message of the at least one other radio module and the at least one message of the radio module each include the one or more configurations, and the one or more configurations are related to at least one of an antenna, a frequency band, a beam, a technology, a sub-band, one or more exposure condition indicators, a synchronous transmission status, a mobile device country code, a mobile device network code, a modulation, a bandwidth, a maximum power reduction, a path, a duty cycle, and a combination of the frequency band and a user identity module.
11. The method of claim 1, further comprising:
an instantaneous power is controlled such that an average power is less than or equal to the adjusted transmit power limit.
12. The method of claim 1, further comprising:
at least one message of the radio module is calculated for interaction with the at least one other radio module.
13. The method of claim 1, further comprising:
for each of the plurality of radio groups, starting to activate a pair of clock signals corresponding to the each radio group to calculate a total exposure in response to one or more configurations corresponding to the each radio group being activated.
14. The method of claim 13, wherein the one or more configurations relate to a frequency band of each radio group.
15. The method of claim 13, further comprising:
in response to the one or more configurations corresponding to each of the radio groups being disabled for at least a period of time, the pair of time signals corresponding to each of the radio groups is initially disabled.
16. A radio system for adjusting a transmit power ratio of a radio module, comprising: a processing circuit for dividing a plurality of radio modules into a plurality of radio groups according to a radio frequency specification, wherein the plurality of radio modules comprise the radio modules; and
the radio module is used for:
mapping a radio frequency exposure limit to a transmit power limit;
interacting with at least one other radio module to adjust the transmission power ratio to obtain at least one adjusted transmission power ratio, wherein the plurality of radio modules includes the at least one other radio module, and the radio module and the at least one other radio module are both included in a same radio group of the plurality of radio groups; and
the transmit power limit is adjusted according to the at least one adjusted transmit power ratio to generate an adjusted transmit power limit for the radio module.
17. The radio system of claim 16, wherein the radio frequency specification is related to a specific absorption peak location separation ratio, and a total exposure calculation for each of the plurality of radio groups is independent.
18. The radio system of claim 16, wherein the radio module is further configured to receive at least one message of the at least one other radio module and adjust the transmit power ratio based on the at least one message of the at least one other radio module to obtain the at least one adjusted transmit power ratio.
19. The radio system of claim 18, wherein the at least one message of the at least one other radio module includes an on/off state of the at least one other radio module.
20. The radio system of claim 19, wherein the radio module allocates a transmit power ratio of the at least one other radio module to the radio module and reserves a margin for the at least one other radio module in response to the on/off status indicating that the at least one other radio module is off.
21. The radio system of claim 19, wherein the radio module dynamically adjusts the transmit power ratio based on the at least one message of the at least one other radio module and the at least one message of the radio module in response to the on/off status indicating that the at least one other radio module is on.
22. The radio system of claim 21, wherein the at least one message of the at least one other radio module and each of the at least one message of the radio module comprises a previous transmit power ratio, a transmit power ratio margin, one or more transmit performance indicators, one or more receive performance indicators, one or more weight information, or one or more configurations.
23. The radio system of claim 22, wherein the at least one message of the at least one other radio module and the at least one message of the radio module each include the one or more transmit performance indicators, and the one or more transmit performance indicators include at least one of a transmit duty cycle, a transmit error vector magnitude, a target power, a throughput, a modulation and coding scheme, a block error rate, a source block, a transmit block size, and a transmit packet error rate.
24. The radio system of claim 22, wherein the at least one message of the at least one other radio module and the at least one message of the radio module each include the one or more reception performance indicators, and the one or more reception performance indicators include at least one of a reception duty cycle, a modulation and coding scheme, a block error rate, a source block, a received signal strength indication, a reference signal received power, a signal-to-noise ratio, a signal-to-interference-and-noise ratio, and a received packet error rate.
25. The radio system of claim 22, wherein the at least one message of the at least one other radio module and the at least one message of the radio module each include the one or more configurations, and the one or more configurations are related to at least one of an antenna, a frequency band, a beam, a technology, a sub-band, one or more exposure condition indicators, a synchronous transmission status, a mobile device country code, a mobile device network code, a modulation, a bandwidth, a maximum power reduction, a path, a duty cycle, and a combination of the frequency band and a user identity module.
26. The radio system of claim 16, wherein the radio module is further configured to control an instantaneous power such that an average power is less than or equal to the adjusted transmit power limit.
27. The radio system of claim 16, wherein the radio module is further configured to calculate at least one message of the radio module for interaction with the at least one other radio module.
28. The radio system of claim 16, wherein for each of the plurality of radio groups, the processing circuit is further configured to start activating a pair of time signals corresponding to each of the plurality of radio groups to calculate a total exposure in response to one or more configurations corresponding to each of the plurality of radio groups being activated.
29. The radio system of claim 28, wherein the one or more configurations are associated with a frequency band of each radio group.
30. The radio system of claim 28, wherein the processing circuit is further configured to start disabling the pair of time signals corresponding to each of the radio groups in response to the one or more configurations corresponding to each of the radio groups being disabled for at least a period of time.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US63/347,050 | 2022-05-31 | ||
| US18/136,333 US20230387955A1 (en) | 2022-05-31 | 2023-04-18 | Method for adjusting transmitting power ratio of radio module and associated radio system |
| US18/136,333 | 2023-04-18 |
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| Publication Number | Publication Date |
|---|---|
| CN117156531A true CN117156531A (en) | 2023-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310625918.4A Pending CN117156531A (en) | 2022-05-31 | 2023-05-30 | Method for adjusting transmission power ratio of radio module and radio system |
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| Country | Link |
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| CN (1) | CN117156531A (en) |
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- 2023-05-30 CN CN202310625918.4A patent/CN117156531A/en active Pending
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