CN111148202B - Power adjustment method and terminal - Google Patents
Power adjustment method and terminal Download PDFInfo
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- CN111148202B CN111148202B CN201811303660.1A CN201811303660A CN111148202B CN 111148202 B CN111148202 B CN 111148202B CN 201811303660 A CN201811303660 A CN 201811303660A CN 111148202 B CN111148202 B CN 111148202B
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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
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/146—Uplink power control
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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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Abstract
The invention provides a power adjustment method and a terminal, wherein the method comprises the following steps: when the total transmission power of a first network and a second network on a target time domain resource exceeds the maximum transmission power of a terminal, adjusting the transmission power of the first network or the second network on the target time domain resource according to the starting time of uplink transmission resources scheduled by the first network and the scheduling time of the uplink transmission resources by the second network; the target time domain resource is a part of the uplink transmission resources of the first network and the second network, where time domains are overlapped. Therefore, the scheme of the invention solves the problem that the total transmission power of LTE and NR can not be ensured not to exceed the upper power limit of the transmission power of the terminal in the NE-DC mode.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a power adjustment method and a terminal.
Background
Various subcarrier spacings are introduced in a 5G NR communication system, and therefore, the NR carrier of NE-DC may be equal to or greater than the carrier width of LTE, which results in the subframe length of LTE being equal to or greater than the slot length of NR. Even if NR and LTE both use the same subcarrier spacing SCS of 15KHz, the number of uplink transmissions included in each of the NR component carriers is not necessarily the same as the number of uplink transmissions included in one subframe of LTE. As shown in fig. 1. When there is an uplink overlap portion between the NR-side slot and the LTE subframe, the total transmission power of these portions may exceed the upper limit of the terminal transmission power.
In the NE-DC dual connection mode, dynamic power sharing is to configure the maximum transmission power of the LTE side and the NR side to be the same as or close to the terminal transmission power level, because the transmission power is more efficiently utilized to coordinate the transmission of LTE and NR. If the total transmission power of LTE and NR exceeds the transmission power level of the terminal, the transmission power needs to be adjusted, and the common adjustment is scale.
Further, in the EN-DC dual connection mode, LTE serves as PCG and NR serves as SCG. In the EN-DC mode, the system can preferentially ensure LTE as the transmission power of the PCG, and adjust and reduce the transmission power of the SCG. However, if the NE-DC performs power adjustment by using the same principle as the EN-DC, the terminal has already obtained the LTE uplink scheduling signaling, and then temporarily joins the NR uplink transmission, and at this time, the terminal does not have enough time to recalculate the LTE transmission power. Although it is necessary to ensure the transmission power of the NR side and reduce and adjust the transmission power of the LTE side in the NE-DC mode from the perspective of an operator, such a requirement cannot be applied to all cases from the standard and protocol level.
Disclosure of Invention
The invention provides a power adjustment method and a terminal, which solve the problem that the total transmission power of LTE and NR cannot be guaranteed not to exceed the power upper limit of the transmission power of the terminal in an NE-DC mode.
An embodiment of the present invention provides a power adjustment method, including:
when the total transmission power of a first network and a second network on a target time domain resource exceeds the maximum transmission power of a terminal, adjusting the transmission power of the first network or the second network on the target time domain resource according to the starting time of uplink transmission resources scheduled by the first network and the scheduling time of the uplink transmission resources by the second network;
the target time domain resource is a part of the uplink transmission resources of the first network and the second network, where time domains are overlapped.
Embodiments of the present invention also provide a terminal, including a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor, the processor being configured to:
when the total transmission power of a first network and a second network on a target time domain resource exceeds the maximum transmission power of a terminal, adjusting the transmission power of the first network or the second network on the target time domain resource according to the starting time of uplink transmission resources scheduled by the first network and the scheduling time of the uplink transmission resources by the second network;
the target time domain resource is a part of the uplink transmission resources of the first network and the second network, where time domains are overlapped.
An embodiment of the present invention further provides a terminal, including:
the power adjusting module is used for adjusting the sending power of the first network or the second network on the target time domain resource according to the starting time of the uplink sending resource scheduled by the first network and the scheduling time of the uplink sending resource by the second network when the total sending power of the first network and the second network on the target time domain resource exceeds the maximum sending power of the terminal;
the target time domain resource is a part of the uplink transmission resources of the first network and the second network, where time domains are overlapped.
Embodiments of the present invention also provide a computer readable storage medium having stored thereon a computer program which, when being executed by a processor, carries out the steps of the power adjustment method as described above.
The technical scheme of the invention has the beneficial effects that:
according to the embodiment of the invention, the sending power of the first network or the second network on the target time domain resource is adjusted according to the starting time of the uplink sending resource scheduled by the first network and the scheduling time of the uplink sending resource by the second network, so that the sum of the sending power of the first network and the sending power of the second network on the target time domain resource does not exceed the maximum sending power of the terminal.
Drawings
Fig. 1 shows one of the prior art mapping of NR slots to LTE subframes;
FIG. 2 shows a second comparison chart of NR slots and LTE sub-frames in the prior art;
FIG. 3 is a flow chart of a power adjustment method according to a first embodiment of the present invention;
fig. 4 shows a block diagram of a terminal according to a second embodiment of the present invention;
fig. 5 is a block diagram showing a configuration of a terminal according to a third embodiment of the present invention;
fig. 6 shows one of the slot and NR sub-frame maps of LTE in the present invention;
FIG. 7 shows a second mapping of LTE slots and NR sub-frames in the present invention;
fig. 8 shows a third mapping of timeslots and NR subframes in LTE according to the present invention;
FIG. 9 shows a fourth comparison of the sub-frames of the time slot and NR in LTE according to the present invention;
fig. 10 shows a fifth example of a slot-to-NR subframe map for LTE in the present invention;
fig. 11 shows a sixth example of a subframe map of the LTE slot and NR in the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided only to help the full understanding of the embodiments of the present invention. It will therefore be apparent to those skilled in the art that various changes and modifications can be made in the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the execution sequence, and the execution sequence of each process should be determined by the function and the inherent logic of the process, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
In addition, the terms "system" and "network" are often used interchangeably herein.
In the embodiments provided herein, it should be understood that "B corresponding to a" means that B is associated with a from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.
In the embodiment of the present invention, the access network may be an access network including a Macro Base Station (Macro Base Station), a micro Base Station (Pico Base Station), a Node B (3G mobile Station), an enhanced Base Station (eNB), a Home enhanced Base Station (Femto eNB or Home eNode B or Home eNB or HeNB), a relay Station, an access point, an RRU (Remote Radio Unit), an RRH (Remote Radio Head), and the like. The user terminal may be a mobile phone (or handset), or other device capable of sending or receiving wireless signals, including user Equipment, a Personal Digital Assistant (PDA), a wireless modem, a wireless communicator, a handheld device, a laptop computer, a cordless phone, a Wireless Local Loop (WLL) station, a CPE (Customer Premise Equipment) or a mobile smart hotspot capable of converting mobile signals into WiFi signals, a smart appliance, or other devices capable of autonomously communicating with a mobile communication network without human operation, and so on.
Specifically, the embodiment of the present invention provides a power adjustment method, which solves the problem that the total transmission power of LTE and NR cannot be guaranteed not to exceed the upper power limit of the transmission power of the terminal in the NE-DC mode.
First embodiment
As shown in fig. 3, an embodiment of the present invention provides a power adjustment method, which specifically includes the following steps:
step 301: when the total transmission power of the first network and the second network on the target time domain resource exceeds the maximum transmission power of the terminal, the transmission power of the first network or the second network on the target time domain resource is adjusted according to the starting time of the uplink transmission resource scheduled by the first network and the scheduling time of the uplink transmission resource by the second network.
The target time domain resource is a part of the uplink transmission resources of the first network and the second network, where time domains are overlapped.
Therefore, in the embodiment of the present invention, the transmission power of the first network or the second network on the target time domain resource is adjusted according to the starting time of the uplink transmission resource scheduled by the first network and the scheduling time of the uplink transmission resource by the second network, so that the sum of the transmission power of the first network and the transmission power of the second network on the target time domain resource does not exceed the maximum transmission power of the terminal.
Preferably, step 301 comprises: judging whether the scheduling time of the second network to the uplink transmission resource is within a preset number of OFDM symbols before the starting time of the uplink transmission resource scheduled by the first network;
when the scheduling time of the uplink transmission resource by the second network is within a preset number of OFDM symbols before the starting time of the uplink transmission resource scheduled by the first network, adjusting the transmission power of the first network on the target time domain resource to be zero, and calculating the transmission power of the second network on the target time domain resource, or selecting a target network needing to reduce the transmission power from the first network and the second network according to the self-capability of the terminal, and reducing the transmission power of the target network on the target time domain resource.
When the transmission power of the first network on the target time domain resource needs to be reduced, the transmission power of the first network side needs to be recalculated, and the transmission power which is already set by the second network side needs to be considered during calculation to ensure that the total power does not exceed the maximum transmission power of the terminal. Similarly, when the transmission power of the second network on the target time domain resource needs to be reduced, the transmission power of the second network side needs to be calculated, and meanwhile, the already calculated transmission power of the first network side needs to be considered, so as to ensure that the total power does not exceed the maximum transmission power of the terminal.
Preferably, the method further comprises:
and when the scheduling time of the uplink transmission resource by the second network is positioned before a preset number of OFDM symbols before the starting time of the uplink transmission resource scheduled by the first network, reducing the transmission power of the first network on the target time domain resource.
That is, in the embodiment of the present invention, by determining whether the scheduling time of the uplink transmission resource by the second network is located in the OFDM symbols that are a preset number of times before the starting time of the uplink transmission resource scheduled by the first network, the time at which the second network transmits the signaling for scheduling the uplink resource is determined to be earlier or later than the starting time of the uplink resource scheduled by the first network.
If the scheduling time of the uplink transmission resource by the second network is within a preset number of OFDM symbols before the starting time of the uplink transmission resource scheduled by the first network, the time when the second network transmits the signaling for scheduling the uplink resource is later than the starting time of the uplink transmission resource scheduled by the first network, and the terminal may not have enough time to recalculate the transmission power of the first network, and the uplink transmission on the first network side may be directly abandoned. If some terminals have strong capability and have enough time to recalculate the transmission power of the first network, the transmission power of the first network can be reduced.
If the scheduling time of the uplink transmission resource by the second network is before a preset number of OFDM symbols before the starting time of the uplink transmission resource scheduled by the first network, the time of the second network transmitting the signaling for scheduling the uplink resource is earlier than the starting time of the uplink transmission resource scheduled by the first network, and the terminal has enough time to calculate the transmission power of the first network on the target time domain resource, so that the transmission power of the first network on the target time domain resource can be directly reduced, and the sum of the transmission power of the first network on the target time domain resource and the transmission power of the second network does not exceed the maximum transmission power of the terminal.
Preferably, the first network is an LTE network, and the second network is an NR network.
Wherein, when the first network is an LTE network and the second network is an NR network, the step of reducing the transmission power of the target network on the target time domain resource includes: when the target network is an LTE network, reducing the sending power of the LTE network on the subframe where the target time domain resource is located; and when the target network is an NR network, reducing the transmission power of the NR network on the time slot of the target time domain resource.
The step of reducing the transmission power of the first network on the target time domain resource includes: and reducing the transmission power of the LTE network on the subframe where the target time domain resource is located.
That is, when the transmission power of the LTE network on the target time domain resource needs to be reduced, the transmission power on the whole subframe where the target time domain resource is located is required to be reduced; when the transmission power of the NR network on the target time domain resource needs to be reduced, it is required to reduce the transmission power on the entire time slot where the target time domain resource is located.
Further, for a specific manner of reducing the transmission power, a conversion method or a step reduction method may be employed.
Wherein, when the preset number M is considered, the corresponding symbol length and transmission slot are calculated according to the subcarrier spacing SCS value of NR.
Preferably, the preset number M is calculated according to the following formula:
M＝2μ*N-3；
wherein, when the subcarrier spacing of the second network is 15KHZ, mu is 0;
when the subcarrier spacing of the second network is 30KHZ, μ ═ 1;
when the subcarrier spacing of the second network is 60KHZ, mu is 2;
n is a positive integer in a preset range. The specific value of the preset range is determined according to the capability of the terminal. Preferably, the predetermined range is [14, 28 ].
To sum up, when the power adjustment method according to the embodiment of the present invention is applied to a network in an NE-DC dual connection mode, specific embodiments may be as follows:
implementation mode one
And the base station sends uplink data in the nth subframe of the LTE side of the (n-4) th subframe scheduling terminal, wherein n is a positive integer. And after receiving the uplink scheduling signaling of the LTE, the terminal starts to calculate the power value required to be sent by the LTE. As shown in fig. 6, the terminal starts uplink transmission at time s. If the terminal receives the uplink transmission scheduling signaling of the NR side M symbols before s time, it means that the LTE side and the NR side of the terminal will simultaneously transmit the LTE uplink and the NR uplink in the same LTE subframe.
When the subcarrier spacing SCS of NR takes 15KHz, μ ═ 0, each symbol of LTE and NR can be aligned. For example, when N is 14, M is 11, that is, the terminal receives the uplink transmission schedule of NR 11 symbols before s time; for another example, when N is 28, M is 25, that is, the terminal receives the uplink transmission schedule of NR 26 symbols before s time, and it is necessary to readjust the transmission power: that is, according to the NE-DC dynamic Power sharing principle and the definition of Maximum transmit Power Reduction (MPR)/extra Maximum transmit Power Reduction (a-MPR) of RAN4, the transmit Power on the subframe where the coincident OFDM symbol is located in the uplink transmission resource scheduled by LTE and the uplink transmission resource scheduled by NR is recalculated, so that the partial Power is reduced. Wherein the reduction includes, but is not limited to, a reduction. Which adjustment is used depends on the implementation of the terminal itself.
Second embodiment
And the base station sends uplink data in the nth subframe of the LTE side of the (n-4) th subframe scheduling terminal, wherein n is a positive integer. And after receiving the uplink scheduling signaling of the LTE, the terminal starts to calculate the power value required to be sent by the LTE. As shown in fig. 7, the terminal starts uplink transmission at time s. If the terminal receives the uplink transmission scheduling signaling of the NR side M symbols before s time, it means that the LTE side and the NR side of the terminal will simultaneously transmit the LTE uplink and the NR uplink in the same LTE subframe.
When the subcarrier spacing SCS of NR takes 30KHz, μ ═ 1, each symbol of LTE and NR can be aligned. For example, when N is 14, M is 25, that is, the terminal receives the uplink transmission schedule of NR 25 symbols before s time; for another example, when N is 28, M is 53, that is, the terminal receives the uplink transmission schedule of NR 53 symbols before s time, and it is necessary to readjust the transmission power: that is, according to the NE-DC dynamic power sharing principle and the definition of MPR/a-MPR of RAN4, the transmission power on the subframe where the coincident OFDM symbol is located in the uplink transmission resource scheduled by LTE and the uplink transmission resource scheduled by NR is recalculated, so that the partial power is reduced. Wherein the reduction includes, but is not limited to, conversion. Which adjustment is used depends on the implementation of the terminal itself.
Third embodiment
And the base station sends uplink data in the nth subframe of the LTE side of the (n-4) th subframe scheduling terminal, wherein n is a positive integer. And after receiving the uplink scheduling signaling of the LTE, the terminal starts to calculate the power value required to be sent by the LTE. As shown in fig. 8, the terminal starts uplink transmission at time s. If the terminal receives the uplink transmission scheduling signaling of the NR side M symbols before s time, it means that the LTE side and the NR side of the terminal will simultaneously transmit the LTE uplink and the NR uplink in the same LTE subframe.
When the subcarrier spacing SCS of NR takes 60KHz, μ ═ 2, each symbol of LTE and NR can be aligned. For example, when N is 14, M is 53, that is, the terminal receives the uplink transmission schedule of NR 53 symbols before s time; for another example, when N is 28, M is 109, that is, the terminal receives the uplink transmission schedule of NR 109 symbols before s, and it is necessary to readjust the transmission power: that is, according to the NE-DC dynamic power sharing principle and the definition of MPR/a-MPR of RAN4, the transmission power on the subframe where the coincident OFDM symbol is located in the uplink transmission resource scheduled by LTE and the uplink transmission resource scheduled by NR is recalculated, so that the partial power is reduced. Wherein the reduction includes, but is not limited to, a reduction. Which adjustment is used depends on the implementation of the terminal itself.
Embodiment IV
And the base station sends uplink data in the nth subframe of the LTE side of the (n-4) th subframe scheduling terminal, wherein n is a positive integer. And after receiving the uplink scheduling signaling of the LTE, the terminal starts to calculate the power value required to be sent by the LTE. As shown in fig. 9, the terminal starts uplink transmission at time s. If the terminal receives the uplink transmission scheduling signaling of the NR side within M symbols before the s moment, it means that the LTE side and the NR side of the terminal will simultaneously transmit the LTE uplink and the NR uplink in the same LTE subframe.
When the subcarrier spacing SCS of NR takes 15KHz, μ ═ 0, each symbol of LTE and NR can be aligned. For example, when N is 14, M is 11, that is, the terminal receives the uplink transmission schedule of NR within 11 symbols before s time; for another example, when N is 28, M is 25, that is, the terminal receives the uplink transmission schedule of NR within 25 symbols before s time. At this time, the terminal may perform the following operations:
option one: by its own implementation, the party that needs to adjust/reduce the transmission power is selected: the terminal can choose to reduce the transmission power of the LTE side; or may choose to reduce the transmit power on the NR side.
And (5) option two: and abandoning the uplink transmission of the LTE side.
Fifth embodiment
And the base station sends uplink data in the nth subframe of the LTE side of the (n-4) th subframe scheduling terminal, wherein n is a positive integer. And after receiving the uplink scheduling signaling of the LTE, the terminal starts to calculate the power value required to be sent by the LTE. As shown in fig. 10, the terminal starts uplink transmission at time s. If the terminal receives the uplink transmission scheduling signaling of the NR side within M symbols before the time s, it means that the LTE side and the NR side of the terminal will simultaneously transmit the LTE uplink and the NR uplink in the same LTE subframe.
When the subcarrier spacing SCS of NR takes 30KHz, μ ═ 1, each symbol of LTE and NR can be aligned. For example, when N is 14, M is 25, that is, the terminal receives the uplink transmission schedule of NR within 25 symbols before s time; for another example, when N is 28, M is 53, that is, the terminal receives the uplink transmission schedule of NR within 53 symbols before s time. At this time, the terminal may perform the following operations:
option one: by its own implementation, the party that needs to adjust/reduce the transmission power is selected: the terminal can choose to reduce the transmission power of the LTE side; or may choose to reduce the transmit power on the NR side.
And the second option is as follows: and abandoning the uplink transmission of the LTE side.
Sixth embodiment
And the base station sends uplink data in the nth subframe of the LTE side of the (n-4) th subframe scheduling terminal, wherein n is a positive integer. And after receiving the uplink scheduling signaling of the LTE, the terminal starts to calculate the power value required to be sent by the LTE. As shown in fig. 11, the terminal starts uplink transmission at time s. If the terminal receives the uplink transmission scheduling signaling of the NR side within M symbols before the time s, it means that the LTE side and the NR side of the terminal will simultaneously transmit the LTE uplink and the NR uplink in the same LTE subframe.
When the subcarrier spacing SCS of NR takes 60KHz, μ ═ 2, each symbol of LTE and NR can be aligned. For example, when N is 14, M is 53, that is, the terminal receives the uplink transmission schedule of NR within 53 symbols before s time; for another example, when N is 28, M is 109, that is, the terminal receives the uplink transmission schedule of NR within 109 symbols before s time. At this time, the terminal may perform the following operations:
option one: by its own implementation, the party that needs to adjust/reduce the transmission power is selected: the terminal can choose to reduce the transmission power of the LTE side; or may choose to reduce the transmit power on the NR side.
And (5) option two: and abandoning the uplink transmission of the LTE side.
As can be seen from the above, the power adjustment method according to the embodiment of the present invention can be applied to a network in the NE-DC dual connectivity mode. In the NE-DC dual connectivity mode, NR is used as a Primary Cell Group (PCG), and LTE is used as a Secondary Cell Group (SCG). Among them, NR can support different methods including subcarrier spacing and slot formats. The terminal may process the NR slot for a shorter time than the LTE subframe. If the base station schedules the terminal to perform LTE uplink transmission, the terminal needs to calculate the maximum power of the LTE transmission, and if the terminal does not receive the notification message of the NR side, the terminal cannot know whether the NR side has uplink transmission or not and needs to transmit the uplink transmission at the same time as the LTE.
If the total transmitting power of the terminal exceeds the upper limit of the output power of the terminal, the power adjusting method of the embodiment of the invention can be adopted to reduce the transmitting power of some OFDM symbols at the LTE side according to the starting time of the uplink transmitting resource scheduled by the LTE network and the scheduling time of the NR network to the uplink transmitting resource, thereby ensuring that the transmitting power at the NR side is not influenced and simultaneously ensuring that the total transmitting power of the LTE and the NR does not exceed the upper limit of the power.
Second embodiment
As shown in fig. 4, an embodiment of the present invention provides a terminal 400, which includes:
a power adjustment module 401, configured to, when total transmit power of a first network and a second network on a target time domain resource exceeds a maximum transmit power of a terminal, adjust transmit power of the first network or the second network on the target time domain resource according to a starting time of an uplink transmit resource scheduled by the first network and a scheduling time of the uplink transmit resource by the second network;
the target time domain resource is a part of the uplink transmission resources of the first network and the second network, where time domains are overlapped.
Preferably, the power adjustment module 401 includes:
a determining unit, configured to determine whether a scheduling time of the uplink transmission resource by the second network is located within a preset number of OFDM symbols before a starting time of the uplink transmission resource scheduled by the first network;
a first adjusting unit, configured to adjust, when a scheduling time of the uplink transmission resource by the second network is located within a preset number of OFDM symbols before a starting time of the uplink transmission resource scheduled by the first network, a transmission power of the first network on the target time domain resource to zero, and calculate a transmission power of the second network on the target time domain resource, or select, according to a capability of a terminal itself, a target network that needs to reduce the transmission power from the first network and the second network, and reduce the transmission power of the target network on the target time domain resource.
Preferably, the adjusting module 401 further includes:
a second adjusting unit, configured to reduce the transmit power of the first network on the target time domain resource when a scheduling time of the uplink transmission resource by the second network is located before a preset number of OFDM symbols before a starting time of the uplink transmission resource scheduled by the first network.
Preferably, the first network is an LTE network, and the second network is an NR network.
Preferably, when reducing the transmission power of the target network on the target time domain resource, the first adjusting unit is specifically configured to:
when the target network is an LTE network, reducing the sending power of the LTE network on the subframe where the target time domain resource is located;
and when the target network is an NR network, reducing the transmission power of the NR network on the time slot of the target time domain resource.
Preferably, when reducing the transmission power of the first network on the target time domain resource, the second adjusting unit is specifically configured to:
and reducing the transmission power of the LTE network on the subframe where the target time domain resource is located.
Preferably, the preset number M is calculated according to the following formula:
M＝2μ*N-3；
wherein, when the subcarrier spacing of the second network is 15KHZ, mu is 0;
when the subcarrier spacing of the second network is 30KHZ, μ ═ 1;
when the subcarrier spacing of the second network is 60KHZ, mu is 2;
n is a positive integer in a preset range.
Third embodiment
In order to better achieve the above object, as shown in fig. 5, the present embodiment provides a terminal, including:
a processor 500; and a memory 520 connected to the processor 500 through a bus interface 540, the memory 520 being used for storing programs and data used by the processor 500 in performing operations, and when the processor 500 calls and executes the programs and data stored in the memory 520, performing the following processes.
The transceiver 510 is connected to the bus interface 540, and is used for receiving and transmitting data under the control of the processor 500, specifically:
the processor 500 is configured to, when a total transmission power of the first network and the second network on the target time domain resource exceeds a maximum transmission power of the terminal, adjust a transmission power of the first network or the second network on the target time domain resource according to a starting time of an uplink transmission resource scheduled by the first network and a scheduling time of the uplink transmission resource by the second network; the target time domain resource is a part of the uplink transmission resources of the first network and the second network, where time domains are overlapped.
When the processor 500 adjusts the transmission power of the first network or the second network on the target time domain resource according to the starting time of the uplink transmission resource scheduled by the first network and the scheduling time of the uplink transmission resource by the second network, the processor is specifically configured to:
judging whether the scheduling time of the second network to the uplink transmission resource is within a preset number of OFDM symbols before the starting time of the uplink transmission resource scheduled by the first network;
when the scheduling time of the uplink transmission resource by the second network is within a preset number of OFDM symbols before the starting time of the uplink transmission resource scheduled by the first network, adjusting the transmission power of the first network on the target time domain resource to be zero, and calculating the transmission power of the second network on the target time domain resource, or selecting a target network needing to reduce the transmission power from the first network and the second network according to the self-capability of the terminal, and reducing the transmission power of the target network on the target time domain resource.
Wherein the processor 500 is further configured to:
and when the scheduling time of the uplink transmission resource by the second network is positioned before a preset number of OFDM symbols before the starting time of the uplink transmission resource scheduled by the first network, reducing the transmission power of the first network on the target time domain resource.
The first network is an LTE network, and the second network is an NR network.
When reducing the transmission power of the target network on the target time domain resource, the processor 500 is specifically configured to:
when the target network is an LTE network, reducing the sending power of the LTE network on the subframe where the target time domain resource is located;
and when the target network is an NR network, reducing the transmission power of the NR network on the time slot of the target time domain resource.
When reducing the transmission power of the first network on the target time domain resource, the processor 500 is specifically configured to:
and reducing the transmission power of the LTE network on the subframe where the target time domain resource is located.
Wherein the preset number M is calculated according to the following formula:
M＝2μ*N-3；
wherein, when the subcarrier spacing of the second network is 15KHZ, mu is 0;
when the subcarrier spacing of the second network is 30KHZ, μ ═ 1;
when the subcarrier spacing of the second network is 60KHZ, mu is 2;
n is a positive integer in a preset range.
It should be noted that in FIG. 5, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 500 and various circuits of memory represented by memory 520 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 510 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. For different terminals, the user interface 530 may also be an interface capable of interfacing with a desired device, including but not limited to a keypad, display, speaker, microphone, joystick, etc. The processor 500 is responsible for managing the bus architecture and general processing, and the memory 520 may store data used by the processor 500 in performing operations.
Those skilled in the art will appreciate that all or part of the steps for implementing the above embodiments may be performed by hardware, or may be instructed to be performed by associated hardware by a computer program that includes instructions for performing some or all of the steps of the above methods; and the computer program may be stored in a readable storage medium, which may be any form of storage medium.
Furthermore, it is to be noted that in the device and method of the invention, it is obvious that the individual components or steps can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of performing the series of processes described above may naturally be performed chronologically in the order described, but need not necessarily be performed chronologically, and some steps may be performed in parallel or independently of each other. It will be understood by those skilled in the art that all or any of the steps or elements of the method and apparatus of the present invention may be implemented in any computing device (including processors, storage media, etc.) or network of computing devices, in hardware, firmware, software, or any combination thereof, which can be implemented by those skilled in the art using their basic programming skills after reading the description of the present invention.
Thus, the objects of the invention may also be achieved by running a program or a set of programs on any computing device. The computing device may be a general purpose device as is well known. The object of the invention is thus also achieved solely by providing a program product comprising program code for implementing the method or the apparatus. That is, such a program product also constitutes the present invention, and a storage medium storing such a program product also constitutes the present invention. It is to be understood that the storage medium may be any known storage medium or any storage medium developed in the future. It is further noted that in the apparatus and method of the present invention, it is apparent that each component or step can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of executing the series of processes described above may naturally be executed chronologically in the order described, but need not necessarily be executed chronologically. Some steps may be performed in parallel or independently of each other.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (14)
1. A method of power adjustment, comprising:
when the total transmission power of a first network and a second network on a target time domain resource exceeds the maximum transmission power of a terminal, adjusting the transmission power of the first network or the second network on the target time domain resource according to the starting time of uplink transmission resources scheduled by the first network and the scheduling time of the uplink transmission resources by the second network;
the target time domain resource is a part of time domain overlapping in uplink sending resources of the first network and the second network;
the step of adjusting the transmission power of the first network or the second network on the target time domain resource according to the starting time of the uplink transmission resource scheduled by the first network and the scheduling time of the uplink transmission resource by the second network includes:
judging whether the scheduling time of the second network to the uplink transmission resource is positioned in the OFDM symbols which are scheduled by the first network and are a preset number before the starting time of the uplink transmission resource;
when the scheduling time of the uplink transmission resource by the second network is within a preset number of OFDM symbols before the starting time of the uplink transmission resource scheduled by the first network, adjusting the transmission power of the first network on the target time domain resource to be zero, and calculating the transmission power of the second network on the target time domain resource, or selecting a target network needing to reduce the transmission power from the first network and the second network according to the self-capability of the terminal, and reducing the transmission power of the target network on the target time domain resource.
2. The method of claim 1, further comprising:
and when the scheduling time of the uplink transmission resource by the second network is before a preset number of OFDM symbols before the starting time of the uplink transmission resource scheduled by the first network, reducing the transmission power of the first network on the target time domain resource.
3. The method according to any of claims 1 to 2, wherein the first network is an LTE network and the second network is an NR network.
4. The method of claim 3, wherein the step of reducing the transmission power of the target network on the target time domain resource comprises:
when the target network is an LTE network, reducing the transmission power of the LTE network on a subframe where the target time domain resource is located;
and when the target network is an NR network, reducing the transmission power of the NR network on the time slot of the target time domain resource.
5. The method of claim 3, wherein the step of reducing the transmission power of the first network on the target time domain resource comprises:
and reducing the transmission power of the LTE network on the subframe where the target time domain resource is located.
6. The method according to claim 1, wherein the preset number M is calculated according to the following formula:
M＝2μ*N-3；
wherein, when the subcarrier spacing of the second network is 15KHZ, mu is 0;
when the subcarrier spacing of the second network is 30KHZ, μ ═ 1;
when the subcarrier spacing of the second network is 60KHZ, μ ═ 2;
n is a positive integer in a preset range.
7. A terminal comprising a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor, wherein the processor is configured to:
when the total transmission power of a first network and a second network on a target time domain resource exceeds the maximum transmission power of a terminal, adjusting the transmission power of the first network or the second network on the target time domain resource according to the starting time of uplink transmission resources scheduled by the first network and the scheduling time of the uplink transmission resources by the second network;
the target time domain resource is a part of time domain overlapping in uplink sending resources of the first network and the second network;
when the processor adjusts the transmission power of the first network or the second network on the target time domain resource according to the starting time of the uplink transmission resource scheduled by the first network and the scheduling time of the uplink transmission resource by the second network, the processor is specifically configured to:
judging whether the scheduling time of the second network to the uplink transmission resource is positioned in the OFDM symbols which are scheduled by the first network and are a preset number before the starting time of the uplink transmission resource;
when the scheduling time of the uplink transmission resource by the second network is within a preset number of OFDM symbols before the starting time of the uplink transmission resource scheduled by the first network, adjusting the transmission power of the first network on the target time domain resource to be zero, and calculating the transmission power of the second network on the target time domain resource, or selecting a target network needing to reduce the transmission power from the first network and the second network according to the self-capability of the terminal, and reducing the transmission power of the target network on the target time domain resource.
8. The terminal of claim 7, wherein the processor is further configured to:
and when the scheduling time of the uplink transmission resource by the second network is before a preset number of OFDM symbols before the starting time of the uplink transmission resource scheduled by the first network, reducing the transmission power of the first network on the target time domain resource.
9. The terminal according to any of claims 7 to 8, wherein the first network is an LTE network and the second network is an NR network.
10. The terminal according to claim 9, wherein the processor, when reducing the transmit power of the target network on the target time domain resource, is specifically configured to:
when the target network is an LTE network, reducing the sending power of the LTE network on the subframe where the target time domain resource is located;
and when the target network is an NR network, reducing the transmission power of the NR network on the time slot of the target time domain resource.
11. The terminal according to claim 9, wherein the processor, when reducing the transmission power of the first network on the target time domain resource, is specifically configured to:
and reducing the transmission power of the LTE network on the subframe where the target time domain resource is located.
12. The terminal according to claim 7, wherein the preset number M is calculated according to the following formula:
M＝2μ*N-3；
wherein, when the subcarrier spacing of the second network is 15KHZ, mu is 0;
when the subcarrier spacing of the second network is 30KHZ, μ ═ 1;
when the subcarrier spacing of the second network is 60KHZ, mu is 2;
n is a positive integer in a preset range.
13. A terminal, comprising:
the power adjusting module is used for adjusting the sending power of the first network or the second network on the target time domain resource according to the starting time of the uplink sending resource scheduled by the first network and the scheduling time of the uplink sending resource by the second network when the total sending power of the first network and the second network on the target time domain resource exceeds the maximum sending power of the terminal;
the target time domain resource is a part of time domain overlapping in uplink sending resources of the first network and the second network;
the power adjustment module includes:
a determining unit, configured to determine whether a scheduling time of the uplink transmission resource by the second network is located within a preset number of Orthogonal Frequency Division Multiplexing (OFDM) symbols before a starting time of the uplink transmission resource scheduled by the first network;
a first adjusting unit, configured to adjust, when a scheduling time of the uplink transmission resource by the second network is located within a preset number of OFDM symbols before a starting time of the uplink transmission resource scheduled by the first network, a transmission power of the first network on the target time domain resource to zero, and calculate a transmission power of the second network on the target time domain resource, or select, according to a capability of a terminal itself, a target network that needs to reduce the transmission power from the first network and the second network, and reduce the transmission power of the target network on the target time domain resource.
14. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the power adjustment method according to any one of claims 1 to 6.
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| CN110856242B (en) * | 2014-01-29 | 2023-07-25 | 交互数字专利控股公司 | Uplink transmission in wireless communications |
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| CN105684516A (en) * | 2013-11-01 | 2016-06-15 | 高通股份有限公司 | Technique for using carrier aggregation in dual-connection wireless communication |
| CN108432302A (en) * | 2015-12-31 | 2018-08-21 | 华为技术有限公司 | Power information sending method, terminal device and the network equipment |
| CN107889252A (en) * | 2016-09-29 | 2018-04-06 | 电信科学技术研究院 | A kind of power distribution method and device |
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