CN113316240B - Method and device for adjusting power of terminal equipment in NSA (non-volatile memory Access) - Google Patents

Method and device for adjusting power of terminal equipment in NSA (non-volatile memory Access) Download PDF

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CN113316240B
CN113316240B CN202010124978.4A CN202010124978A CN113316240B CN 113316240 B CN113316240 B CN 113316240B CN 202010124978 A CN202010124978 A CN 202010124978A CN 113316240 B CN113316240 B CN 113316240B
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terminal equipment
power
determining
terminal device
volte service
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CN113316240A (en
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洪媛
李翔
蒋一鸣
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Datang Mobile Communications Equipment Co Ltd
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Datang Mobile Communications Equipment Co Ltd
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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
    • H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
    • H04W52/283—Power depending on the position of the mobile
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/1016—IP multimedia subsystem [IMS]

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  • Computer Networks & Wireless Communication (AREA)
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  • Mobile Radio Communication Systems (AREA)

Abstract

The application discloses a method and a device for adjusting power of terminal equipment in NSA (non-volatile memory Access), and the methodThe method specifically comprises the following steps: after receiving a request of starting a VoLTE service by a terminal device, a base station establishes the bearing of the VoLTE service and determines the position information of the terminal device; when the terminal equipment is determined to be positioned at a far point according to the position information, the maximum transmission power P of the LTE side of the terminal equipment is reconfiguredLTEIs the maximum transmission power of the terminal device. The method and the device solve the technical problems that in the prior art, the performance of the VoLTE service is reduced and the transmission of the 5G side data service is limited due to unreasonable power configuration of the LTE side and the NR side of the terminal equipment.

Description

Method and device for adjusting power of terminal equipment in NSA (non-volatile memory Access)
Technical Field
The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for adjusting power of a terminal device in NSA.
Background
Under the NSA (Non-standalone networking) network architecture, aiming at the problem that the sum of the 4G (fourth Generation mobile communication) side power and the 5G (fifth Generation mobile communication) side power exceeds the maximum power capability of a terminal under dual connectivity, the 3GPP (3rd Generation Partnership Project) standard provides two corresponding methods: one is to avoid the total power exceeding the maximum transmission power of the terminal by a time division multiplexing mode (tdm-pattern), that is, two-side services are transmitted between 5G and 4G in a time division manner; another method is to implement dynamic power sharing between 4G and 5G through a terminal, and ensure that the uplink total power is within the maximum transmission power allowed range of the terminal, when the sum of the transmission power of a 4G (e.g., LTE (Long Term Evolution, Long Term Evolution)) side and a 5G (e.g., NR (New Radio, New air interface)) side exceeds the maximum power of the terminal, the terminal may reduce the power of the NR side, if the reduced amplitude is smaller than a threshold specified by the base station, the terminal may transmit uplink time slot on the NR side, otherwise, the NR side transmission is stopped.
If the tdm-pattern function is realized, the problem that the uplink dual-connection transmitting power exceeds the maximum power of the terminal can be statically avoided from the time domain, but the uplink service throughput is also influenced. For the terminal dynamic power sharing function, the protocol specifies that the power of the LTE side and the power of the NR side are respectively linear values of the total transmission power of the terminal, and the transmission of the NR side is stopped when the reduced power amplitude of the NR side exceeds a specified threshold (maximum 6dB), so that on one hand, a base station cannot determine the power behavior of the voice service of the LTE side when the terminal is at a far point, and on the other hand, when voice and NR data coexist, how a user balances and selects the voice service and the NR data cannot be ensured.
Currently, methods for ensuring a voice over long term evolution (VoLTE) service in an NSA network include: the VoLTE service and the 5G side data service are mutually exclusive, the method can ensure the VoLTE service performance, but can limit the 5G side data service transmission at the same time, and especially can lose the data service transmission advantage of near-point users.
Disclosure of Invention
The application provides a method and a device for adjusting power of terminal equipment in NSA, which are used for solving the technical problems that the performance of VoLTE service is reduced and the transmission of 5G side data service is limited due to unreasonable power configuration of an LTE side and an NR side of the terminal equipment in the existing NSA.
In a first aspect, a method for adjusting power of a terminal device in NSA is provided, including:
after receiving a request of starting a voice over long term evolution (VoLTE) service of terminal equipment, a base station establishes the VoLTE service and determines the position information of the terminal equipment;
when the terminal equipment is determined to be positioned at a far point according to the position information, the maximum transmission power P of the LTE side of the terminal equipment is reconfiguredLTEIs the maximum transmission power of the terminal device.
In the method provided by the embodiment of the application, the base station can adaptively adjust the maximum transmitting power of LTE and NR sides under double connection of the terminal according to the position information of the terminal equipment, so that the maximum transmitting power is improved for a remote user, and the perception of VoLTE service is ensured.
According to the different phases of the VoLTE service, the method provided by the embodiment of the present application determines the location information of the terminal device in different ways, and the following two ways are provided to respectively correspond to the phase of starting the VoLTE service and the phase of entering the VoLTE service transmission, where the specific way of determining the location information of the terminal device may include:
in a first manner, when the bearer is a QCI-1 bearer, determining the location information of the terminal device includes:
estimating downlink path loss through an uplink period SRS measurement result when establishing the bearing of the VoLTE service;
and determining the position information of the terminal equipment according to the downlink path loss.
The second method, determining the location information of the terminal device includes:
and in the VoLTE service transmission stage, determining the position information of the terminal equipment according to the reported content in the Power Headroom Report (PHR) of the VoLTE service.
Further, because the power headroom value in the PHR report may become larger or smaller according to the change of the location of the terminal device, and the solution provided in the embodiment of the present application also needs to adaptively adjust the transmission power of the terminal device according to the location change of the terminal device, based on the consistency characteristic, in the solution provided in the embodiment of the present application, the implementation of determining the location information of the terminal device according to the reported content in the power headroom report PHR of the VoLTE service may include:
when the power margin in the PHR is determined to be smaller than a first threshold value, determining that the terminal equipment is located at a far point;
and when the power margin in the PHR is determined to be larger than a second threshold value, determining that the terminal equipment is located at a near point.
In an optional implementation manner, based on the foregoing manner, the LTE side transmission power of the terminal device located at the remote point is adjusted to be maximum, so as to ensure the VoLTE service, and on this basis, if the terminal device has the capability of transmitting the NR data service, the method provided in this embodiment of the present application may further provide a manner that enables the terminal device to reduce the limitation on the NR data service while ensuring the VoLTE service, and then reconfigure the maximum transmission power P on the LTE side of the terminal deviceLTEAfter the maximum transmission power of the terminal device, the method further includes:
determining whether the coexistence of the VoLTE service and the NR data service is supported or not according to the capability information of the terminal equipment; and if the terminal equipment supports a tdm-pattern mode and frame structures of an LTE side and an NR side meet preset conditions, configuring the terminal equipment to transmit the VoLTE service and the NR data service in a time division mode according to the maximum transmission power.
According to the embodiment, the method provided by the embodiment of the application can ensure the Voice service and simultaneously can configure the data service at the NR side to be transmitted in a time division mode according to the terminal capability, so that the voice and data performance of a remote user is maximized.
In a second aspect, an apparatus for adjusting power of a terminal device in NSA is provided, including:
the determining module is used for establishing the load bearing of the VoLTE service and determining the position information of the terminal equipment after receiving a request of the terminal equipment for starting the VoLTE service;
a configuration module, configured to reconfigure a maximum transmission power P of the LTE side of the terminal device when the terminal device is determined to be located at a remote point according to the location informationLTEIs the maximum transmission power of the terminal device.
In an optional embodiment, when the bearer is a QCI-1 bearer, the determining module is specifically configured to estimate a downlink loss through an uplink period SRS measurement result when the bearer for the VoLTE service is established; and determining the position information of the terminal equipment according to the downlink path loss.
In an optional implementation manner, the determining module is specifically configured to determine, at the VoLTE service transmission stage, the location information of the terminal device according to a reporting content in a power headroom report PHR of the VoLTE service.
In an optional embodiment, the determining module is specifically configured to determine that the terminal device is located at a remote point when it is determined that the power headroom in the PHR is less than a first threshold; and when the power margin in the PHR is determined to be larger than a second threshold value, determining that the terminal equipment is located at a near point.
In an alternative embodiment, the apparatus further comprises:
the mode adjusting module is used for determining whether the coexistence of the VoLTE service and the NR data service is supported or not according to the capability information of the terminal equipment; and if the terminal equipment supports the time division multiplexing mode and the frame structures of the LTE side and the NR side meet the preset conditions, configuring the terminal equipment to transmit the VoLTE service and the NR data service in a time division mode according to the maximum transmission power.
In a third aspect, a base station is provided, which includes:
a memory to store instructions; and
a processor configured to execute the instructions, wherein the instructions, when executed, cause the apparatus to implement the method of any of the first aspects.
In a fourth aspect, a storage medium comprises a computer program which, when run on a computer, causes the computer to carry out the method of any one of the first aspect.
Drawings
Fig. 1-fig. 2 are schematic diagrams illustrating a scenario that a terminal device operates in a dual connection mode in the prior art;
fig. 3 is a schematic flowchart of a method for adjusting power of a terminal device in NSA according to an embodiment of the present disclosure;
fig. 4 is a schematic diagram of time slot occupation for performing simultaneous transmission of VoLTE and NR data in a time division manner on an LTE side and an NR side in the method provided in the embodiment of the present application;
fig. 5 is a schematic diagram of a specific implementation flow of the method provided in the embodiment of the present application in a stage of starting a VoLTE service;
fig. 6 is a schematic diagram of a specific implementation flow of the method in the VoLTE service transmission phase according to the embodiment of the present application;
fig. 7 is a schematic structural diagram of a power adjustment apparatus for a terminal device in NSA according to an embodiment of the present disclosure;
fig. 8 is a schematic structural diagram of a base station according to an embodiment of the present application.
Detailed Description
Before introducing the method provided by the embodiment of the present application, first, an application scenario in which the terminal device applied to the embodiment of the present application operates in the dual connectivity mode is briefly described according to the scenarios shown in fig. 1 and fig. 2; the scenario shown in fig. 1 is a first scenario in which a primary network device and a secondary network device are deployed on the same site; the scenario shown in fig. 2 is a second scenario in which the primary network device and the secondary network device are deployed on different sites. In the method provided in the embodiment of the present application, the terminal device is simultaneously connected to the primary network device and the secondary network device, and may be applicable to both the first scenario and the second scenario, and it should be further noted that, in the first scenario, the network device of the LTE and the network device of the NR may share the same set of hardware devices, or may use different hardware devices. In addition, the primary network device and the secondary network device may be network devices of the same radio access technology, such as NR or LTE, or network devices of different radio access technologies. In the first scenario or the second scenario, the network element device according to the embodiment of the present application may include (the network element device provided here is only an example, and if participation of another network element device is further required according to a specific implementation scheme, processing is performed according to a specific actual scheme, and the example provided here does not limit a specific implementation of the scheme):
a terminal device: the device is used for sending an uplink signal to the network equipment or receiving a downlink signal from the network equipment; the system can be a mobile phone, a tablet personal computer, a virtual reality terminal device, an augmented reality terminal device, a wireless terminal in industrial control and the like.
A network device: the system comprises a terminal device and a control unit, wherein the control unit is used for receiving an uplink signal from the terminal device or sending a downlink signal to the terminal device; the network device may be an LTE and/or NR network device, and may be a base station (NodeB), an evolved Node B (eNodeB), a base station in a 5G mobile communication system, a next generation mobile communication base station (gNB), a base station in a future mobile communication system, or an access Node in a Wi-Fi system.
The specific scenario NSA networking according to the embodiment of the present application is a network architecture in which 5G depends on a 4G base station to work, and meanwhile, a core network of 4G is used, RRC (Radio Resource Control, Radio access Control) signaling of a 5G wireless air interface is transmitted by the 4G, and data is transmitted through NR and LTE. Under the NSA network architecture, the terminal equipment side is connected with the 4G side and the 5G side in a double mode, and if the 4G side and the 5G side reach the maximum transmitting power, the phenomenon that the total power exceeds the maximum power capacity of the terminal can be generated. When a terminal device user is located at a far point (in this embodiment, the definition of the far point may be that a distance value between the terminal device and a base station to which the terminal device belongs is greater than a set threshold value) in a cell, VoLTE service transmission at a 4G side may not reach a maximum transmission power, uplink transmission coverage is limited, and voice service perception of the terminal is affected. In addition, in the prior art, although the voice service performance can be guaranteed, the method for mutually exclusive VoLTE service and 5G side data service does not distinguish the cell location where the terminal device is located, which limits the 5G side data service, especially the data service transmission advantage of the terminal device at the near point (in this embodiment, the definition of the near point may be that the distance value between the terminal device and the base station to which the terminal device belongs is smaller than the set threshold value).
Therefore, in view of the current situation that there are corresponding technical problems in the prior art regardless of whether the terminal device is located at a near point or a far point, embodiments of the present application provide a method and an apparatus for adjusting power of a terminal device in NSA, where the overall idea of the method is as follows:
under the NSA networking framework, the position (specifically, far point or near point) of the terminal equipment in a service cell can be determined under the condition that the uplink double-transmission power of the terminal equipment is limited and the processing capacity of the terminal is not determined, then the maximum transmission power of an LTE side and the maximum transmission power of an NR side are reconfigured according to the position, the VoLTE service performance is improved, and whether uplink NR data service transmission is carried out or not is selected according to the terminal capacity while the VoLTE service is ensured.
With reference to the above application scenarios and the detailed description of the network element structure, the following describes a technical solution in the embodiment of the present application with reference to the drawings in the embodiment of the present application.
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
The terms "first," "second," "third," and "fourth," etc. in the description and claims of this application and in the accompanying drawings are used for distinguishing between different elements and not for describing a particular sequential order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Example one
As shown in fig. 3, an application embodiment provides a method for adjusting power of a terminal device in NSA, which may specifically include the following implementation steps:
step 301, a base station configures uplink transmission power of terminal equipment; wherein, the uplink transmission power comprises the maximum transmission power P of the LTE sideLTEAnd NR side maximum Transmission Power PNR；PLTEAnd PNRIs less than the maximum transmit power of the terminal device;
in the initial scenario, the base station configures initial Power for the terminal device, taking UE Power Class3 as an example, that is, the maximum transmission Power P of the terminalCMAXConfiguring the maximum transmitting power P of the terminal equipment LTE side by P-MaxEUTRA (radio-frequency transmission power)LTEThe maximum transmitting power P of the NR side of the terminal equipment is set to be 20dBm through P-NR configurationNRIs 20dBm, so that the total transmit power (P) of the terminalLTEAnd PNRSummed transmit power) and PCMAXEqual and do not exceed the maximum transmit power capability of the terminal.
Step 302, after receiving a request of starting a VoLTE service by a terminal device, a base station establishes a VoLTE service bearer and determines position information of the terminal device;
according to the different phases of the VoLTE service, the method provided by the embodiment of the present application determines the location information of the terminal device in different ways, and the following two ways are provided to respectively correspond to the phase of starting the VoLTE service and the phase of entering the VoLTE service transmission, where the specific way of determining the location information of the terminal device may include:
in a first manner, when a VoLTE service phase is started, and the bearer is a qci (qos class identifier) -1 bearer, determining the location information of the terminal device includes:
a1, when establishing the bearer of the VoLTE service, estimating downlink path loss according to an uplink periodic SRS (sounding reference signal) measurement result;
a2, determining the position information of the terminal device according to the downlink path loss.
In the method, the judgment of the location of the serving cell where the terminal device is located (i.e. the determination of the location information of the terminal device) is performed according to the state of the QCI-1 bearer, and when the QCI-1 bearer is in the initial state (i.e. when the bearer of the VoLTE service is established), the base station estimates the downlink path loss according to the uplink period SRS measurement result, and obtains the location information where the terminal device is currently located. The actual SRS power transmitted by the terminal equipment and the expected receiving power (P) of a single PRB (Physical resource block)O_SRS) SRS Bandwidth (M)SRS) A path loss compensation factor (alpha)SRS) And downlink Path Loss (PL), so that the base station side can receive SRS power (P) according to the SRS measurement resultSRS) And obtaining downlink path loss information by reverse deduction, and using the downlink path loss information as the judgment of the initial position of the user. The specific associations are as follows:
Figure BDA0002394136840000081
wherein 2μIndicating the amount of bandwidth required to convert the SRS bandwidth to 15kHz subcarrier spacing in accordance with the protocol. Since the far-point user has large path loss and is easy to cause limitation of uplink transmission power, in order to estimate the downlink path loss as accurately as possible, in the embodiment of the present application, the SRS bandwidth may be configured to be as narrow as possible, so that the expected received power of a single PRB can approach the actual received power of the single PRB.
And in a second mode, entering a VoLTE service transmission stage, and determining the position information of the terminal equipment comprises the following steps:
and in the VoLTE service transmission stage, determining the position information of the terminal equipment according to the reported content in PHR (Power Headroom) report of the VoLTE service.
The power headroom is a difference between the maximum transmission power allowed by the terminal and the transmission power of a Physical-layer uplink shared channel (PUSCH) currently estimated, and indicates how much transmission power the terminal may use in addition to the power used for currently scheduling PUSCH transmission.
Further, because the power headroom value in the PHR report may become larger or smaller according to the change of the location of the terminal device, and the solution provided in the embodiment of the present application also needs to adaptively adjust the transmission power of the terminal device according to the location change of the terminal device, based on the consistency characteristic, in the solution provided in the embodiment of the present application, the implementation of determining the location information of the terminal device according to the reported content in the power headroom report PHR of the VoLTE service may include:
when the power headroom in the PHR is determined to be smaller than a first threshold, determining that the terminal equipment is located at a far point;
and when the power margin in the PHR is determined to be larger than a second threshold value, determining that the terminal equipment is located at a near point.
In a specific application scenario of the embodiment of the present application, when the power headroom is gradually decreased from a positive value, it indicates that the terminal transmission power gradually reaches the configured maximum power value, and the user position moves from a near point to a far point, at this time, the maximum transmission power needs to be reconfigured. On the contrary, when the power margin is gradually increased, the user is indicated to move from the far point to the near point of the cell, and the maximum transmitting power of the modified LTE side and the maximum transmitting power of the modified NR side fall back to the initial configuration value. The maximum transmitting power of the terminal is adjusted in a self-adaptive mode by judging the position of the user, so that the performance of a far-point user is guaranteed, the transmitting power of a near-point user is properly reduced, and the interference among near-point users is reduced. The VoLTE PHR reporting does not need a short period, power control is not frequent, uplink resources are saved, the method is also reasonable for judging the position of a user, and the value of the periodicPHR-Timer is at least sf 200.
Step 303, when the terminal equipment is determined to be located at a remote point according to the position information, reconfiguring the maximum transmission power P of the LTE side of the terminal equipmentLTEThe maximum transmission power of the terminal equipment.
When the terminal equipment is located at a near point, because the uplink coverage of the VoLTE service of the terminal equipment located at the near point is not limited, the maximum transmitting power of the terminal does not need to be reconfigured.
In the implementation of the method provided by the embodiment of the application, the base station can adaptively adjust the maximum transmitting power of the LTE side and the NR side of the terminal under double connection according to the position information of the terminal equipment, so that the maximum transmitting power is improved for a remote user, and the VoLTE service perception is ensured.
Further, the terminal equipment is determined to be located at the near point position of the cell according to the method, and VoLTE voice and NR data services can be transmitted in parallel. When the terminal device moves to a far point of a cell and the maximum powers of the LTE side and the NR side are reconfigured, in order to further achieve the balance between the LTE side and the NR side, in the method of the embodiment of the present application, the maximum transmission power P of the LTE side of the terminal device is reconfiguredLTEAfter the maximum transmission power of the terminal device, the coordinated transmission of data on the LTE side and the NR side may be further implemented in the following manner, and a specific embodiment may be:
determining whether the coexistence of the VoLTE service and the NR data service is supported or not according to the capability information of the terminal equipment; if the terminal equipment supports a tdm-pattern mode and frame structures of an LTE side and an NR side meet preset conditions, the terminal equipment is configured on the LTE side to transmit the VoLTE service and the NR data service in a time division mode according to the maximum transmission power.
According to the embodiment, the method provided by the embodiment of the application can ensure the Voice service and can configure the NR side data service to be transmitted in a time division mode according to the terminal capability, so that the voice and data performance maximization of a remote user is achieved.
The preset condition is that a frame structure of the terminal equipment allows 4G and 5G time division transmission, and the base station can configure the terminal on the LTE side to transmit data on the NR side according to the maximum power in an uplink time division mode; otherwise, the NR data service is stopped, the VoLTE service perception of the user is preferentially ensured, and the data is only allowed to be transmitted at the LTE side. Therefore, the voice service performance of the remote point terminal equipment is ensured, and meanwhile, the data service between NR and LTE is reasonably distributed through the information interaction between 4G and 5G according to the terminal capacity, so that the performance maximization of the VoLTE service and the data service of the remote point user is realized.
The terminal time division multiplexing mode (tdm-pattern) in this embodiment is suitable for terminals that do not support dynamic power sharing, and is also suitable for terminals that are uplink and single-shot in all bandwidth combinations. the configuration of the tdm-pattern mode includes two parameters: subframe assignment-r15 and harq-Offset-r15 respectively represent uplink subframe Offset in an LTE TDD (Time Division duplex) subframe allocation and a TDD subframe allocation in a tdm-pattern mode, where an uplink U subframe of the subframe Offset can transmit LTE-side data, and other uplink subframes cannot be used for uplink data transmission. If the configured uplink subframe is used for transmitting voice at the LTE side, and other uplink time slots are used for transmitting data at the NR side, the 5G base station is informed in a 4G and 5G information interaction mode, and NR data are transmitted in a time division mode according to the maximum transmission power, so that the VoLTE performance of a remote point user is improved, and the uplink receiving performance of the NR data is also improved.
Taking an NR 2.5 dual (subcarrier spacing of 30kHz) frame structure, a subframe assignment-r15 configuration as a subframe ratio 1, and a harq-Offset-r15 Offset subframe configuration as 0 as an example, in this embodiment of the present invention, a specific implementation of time division multiplexing on an LTE side and an NR side of a terminal device may be that, if the LTE side selects to transmit VoLTE on a U subframe, the NR side cannot transmit data in an uplink slot corresponding to an LTE uplink subframe, that is, the U uplink slot with a shadow in a background in fig. 4 is corresponding; the base station can only schedule the NR side data in the remaining uplink time slot. Therefore, the terminal can realize the simultaneous transmission of VoLTE and NR data in a time division mode according to the maximum power.
In the embodiment of the present application, because different power allocation manners at different stages of the VoLTE service have certain differences, for the manner of performing power configuration according to the location of the terminal device provided in the foregoing embodiment, the specific implementation at different stages of the VoLTE service may be:
firstly: the VoLTE service phase is opened, and the specific implementation may be (the method flow is shown in fig. 5):
step 501, a base station initially configures initial power of terminal equipment;
the initial power is LTE side power (P)LTE) And NR side power (P)NR) After being aggregated, the maximum transmission power (P) of the terminal equipmentCMAX) And, the NR-side data transmission state is denoted as NR _ a.
Step 502, when the QCI ═ 1 voice service bearer is established, judging whether the terminal equipment is located at a cell remote point according to SRS measurement; if the terminal equipment is at the far point, the step 503 is carried out, otherwise, the process is ended, and the position of the terminal equipment is tracked and judged;
step 503, signaling configuration terminal LTE side and NR maximum power are maximum power values, namely PNR＝PCMAX，PLTE＝PCMAX；
When the power of the terminal equipment is configured, a global Flag is also configured to be equal to 1, which indicates that the maximum transmission power of the terminal is increased.
Step 504, according to the capability information of the terminal device, judging whether to perform NR side data transmission at the same time;
if the terminal device supports tdm-pattern capability and frame structure ratio allows, time division transmission is performed on VoLTE voice and NR data, and the data transmission state at the NR side is marked as NR _ b, otherwise, the NR side stops data service, and the data transmission state at the NR side is marked as NR _ c.
Secondly, the method comprises the following steps: in the VoLTE service transmission phase, in combination with the implementation manner of VoLTE service initiation, the specific implementation of this phase may be (the method flow is shown in fig. 6):
step 601, acquiring the position information of the terminal equipment according to the PHR reported periodically.
Step 602, according to the position information and the global flag bit, it is determined that the terminal device moves from a near point to a far point, and the transmission power of the reconfigured LTE side and the reconfigured NR side is the maximum value.
If the terminal equipment is positioned at a far point of a cell, judging the Flag value, if the Flag is 1, indicating that the maximum transmission power is increased, and returning to the VoLTE service stage judging state. If the terminal device is located at the far point of the cell and the Flag is 0 at the moment, it is indicated that the terminal device moves from the near point of the cell to the far point of the cell, the transmission power of the reconfiguration LTE side and the NR side is the maximum value at the moment, and the Flag is set to be 1.
After the transmission power is reconfigured, it is also determined that the terminal device further executes the NR-side data transmission state according to the terminal device capability information, specifically implementing the related implementation as in step 504.
If the terminal equipment is not located at the far point of the cell and Flag is equal to 1, the terminal equipment moves from the far point to the near point, the uplink power of the terminal is not limited at the moment, and the maximum transmission power of the LTE side and the NR side is recovered to be the initial value configuration of the base station, namely PLTE+PNR＝PCMAXMode, set Flag to 0, while restoring the NR-side data transmission state to the initial state NR _ a. If the terminal device is located at the near point of the cell and Flag is 0, it indicates that the terminal device is not changed from the last position judgment or is located at the near point of the cell, and at this time, no operation is needed and the VoLTE service phase is returned.
Once the VoLTE voice service is finished, exiting the VoLTE service phase, and determining a Flag value, if the Flag is equal to 1, indicating that the terminal device is configured to increase the maximum transmission power, at this time, the initial configuration needs to be recovered, the Flag is equal to 0, and the NR-side data transmission state is recovered to the initial state NR _ a. Otherwise, if Flag is equal to 0, no operation needs to be performed and the process ends.
Example two
As shown in fig. 7, an embodiment of the present application further provides a device for adjusting power of a terminal device in NSA, where the device may include:
the determining module 701 is configured to establish a bearer of a VoLTE service and determine location information of a terminal device after receiving a request for starting the VoLTE service by the terminal device;
configuration module 702 toWhen the terminal equipment is determined to be positioned at a far point according to the position information, the maximum transmission power P of the LTE side of the terminal equipment is reconfiguredLTEThe maximum transmission power of the terminal equipment.
In an optional implementation manner, when the bearer is a QCI-1 bearer, the determining module is specifically configured to estimate a downlink path loss according to an uplink period SRS measurement result when the bearer of the VoLTE service is established; and determining the position information of the terminal equipment according to the downlink path loss.
In an optional implementation manner, the determining module 701 is specifically configured to determine, at the VoLTE service transmission stage, the location information of the terminal device according to a reporting content in a power headroom report PHR of the VoLTE service.
In an optional implementation manner, the determining module 701 is specifically configured to determine that the terminal device is located at a far point when it is determined that the power headroom in the PHR is smaller than a first threshold; and when the power margin in the PHR is determined to be larger than a second threshold value, determining that the terminal equipment is located at a near point.
In an alternative embodiment, the apparatus further comprises:
the mode adjusting module is used for determining whether the coexistence of the VoLTE service and the NR data service is supported or not according to the capability information of the terminal equipment; and if the terminal equipment supports a tdm-pattern mode and the frame structures of the LTE side and the NR side meet the preset conditions, configuring the terminal equipment to transmit the VoLTE service and the NR data service in a time division mode according to the maximum transmission power.
The above-mentioned apparatus is corresponding to the method provided in the first embodiment, so the technical details of the specific implementation are also similar to the method provided in the first embodiment, and therefore the detailed description thereof is omitted here.
Based on the same inventive concept, an embodiment of the present application provides a base station, please refer to fig. 8, where the base station includes at least one processor 802 and a memory 801 connected to the at least one processor, a specific connection medium between the processor 802 and the memory 801 is not limited in the embodiment of the present application, fig. 8 illustrates that the processor 802 and the memory 801 are connected through a bus 800, the bus 800 is indicated by a thick line in fig. 8, and connection manners between other components are only schematically illustrated and not limited thereto. The bus 800 may be divided into an address bus, a data bus, a control bus, etc., and is shown in fig. 8 with only one thick line for ease of illustration, but does not represent only one bus or type of bus.
In the embodiment of the present application, the memory 801 stores instructions executable by the at least one processor 802, and the at least one processor 802 may perform the steps included in the method for adjusting power of a terminal device in NSA by calling the instructions stored in the memory 801. The processor 802 is a control center of the base station, and may connect various parts of the entire base station by using various interfaces and lines, and implement various functions of the base station by executing instructions stored in the memory 801. Optionally, the processor 802 may include one or more processing units, and the processor 802 may integrate an application processor and a modem processor, wherein the application processor mainly handles an operating system, a user interface, application programs, and the like, and the modem processor mainly handles wireless communication. It will be appreciated that the modem processor described above may not be integrated into the processor 802. In some embodiments, processor 802 and memory 801 may be implemented on the same chip, or in some embodiments, they may be implemented separately on separate chips.
The memory 801, which is a non-volatile computer-readable storage medium, may be used to store non-volatile software programs, non-volatile computer-executable programs, and modules. The memory 801 may include at least one type of storage medium, and may include, for example, a flash memory, a hard disk, a multimedia card, a card-type memory, a Random Access Memory (RAM), a Static Random Access Memory (SRAM), a Programmable Read Only Memory (PROM), a Read Only Memory (ROM), a charge erasable programmable read only memory (EEPROM), a magnetic memory, a magnetic disk, an optical disk, and so on. The memory 801 is any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to such. The memory 801 in the embodiments of the present application may also be circuitry or any other device capable of performing a storage function for storing program instructions and/or data.
The processor 802 may be a general-purpose processor, such as a Central Processing Unit (CPU), digital signal processor, application specific integrated circuit, field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or the like, that implements or performs the methods, steps, and logic blocks disclosed in embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method for adjusting the power of the terminal device in NSA disclosed in the embodiments of the present application may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor.
By programming the processor 802, the code corresponding to the terminal device power adjustment method in NSA described in the foregoing embodiment may be solidified into a chip, so that the chip can execute the foregoing steps of the terminal device power adjustment method in NSA when running.
Based on the same inventive concept, the present application further provides a storage medium storing computer instructions, which when executed on a computer, cause the computer to perform the steps of the method for adjusting the power of the terminal device in NSA as described above.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and so forth) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims (10)

1. A method for adjusting power of terminal equipment in NSA is characterized by comprising the following steps:
after receiving a request of starting a voice over long term evolution (VoLTE) service of terminal equipment, a base station establishes the VoLTE service and determines the position information of the terminal equipment;
when the terminal equipment is determined to be positioned at a far point according to the position information, the maximum transmission power P of the LTE side of the terminal equipment is reconfiguredLTEThe maximum transmission power of the terminal equipment is set;
determining whether the coexistence of the VoLTE service and the NR data service is supported or not according to the capability information of the terminal equipment; and if so, determining that the terminal equipment supports a time division multiplexing mode and frame structures of an LTE side and an NR side meet preset conditions, configuring the terminal equipment to transmit the VoLTE service and the NR data service in a time division mode according to the maximum transmission power.
2. The method of claim 1, wherein determining the location information of the terminal device comprises:
when the VoLTE service bearing is established, estimating downlink path loss through an uplink periodic Sounding Reference Signal (SRS) measurement result;
and determining the position information of the terminal equipment according to the downlink path loss.
3. The method of claim 1, wherein determining the location information of the terminal device comprises:
and in the VoLTE service transmission stage, determining the position information of the terminal equipment according to the reported content in the Power Headroom Report (PHR) of the VoLTE service.
4. The method of claim 3, wherein determining the location information of the terminal device according to the reported content in the power headroom report PHR of the VoLTE service comprises:
when the power headroom in the PHR is determined to be smaller than a first threshold, determining that the terminal equipment is located at a far point;
and when the power margin in the PHR is determined to be larger than a second threshold value, determining that the terminal equipment is located at a near point.
5. A terminal device power adjustment apparatus in NSA, comprising:
the determining module is used for establishing the bearing of the VoLTE service and determining the position information of the terminal equipment after receiving a request of the terminal equipment for starting the VoLTE service;
a configuration module, configured to reconfigure a maximum transmission power P of the LTE side of the terminal device when the terminal device is determined to be located at a remote point according to the location informationLTEThe maximum transmission power of the terminal equipment;
the mode adjusting module is used for determining whether the coexistence of the VoLTE service and the NR data service is supported or not according to the capability information of the terminal equipment; and if the terminal equipment supports the time division multiplexing mode and the frame structures of the LTE side and the NR side meet the preset conditions, configuring the terminal equipment to transmit the VoLTE service and the NR data service in a time division mode according to the maximum transmission power.
6. The apparatus of claim 5, wherein when the bearer is a QCI-1 bearer, the determining module is specifically configured to estimate downlink path loss through an uplink periodic SRS measurement result when the bearer for the VoLTE service is established; and determining the position information of the terminal equipment according to the downlink path loss.
7. The apparatus of claim 5, wherein the determining module is specifically configured to determine, during the VoLTE service transmission phase, the location information of the terminal device according to a reporting content in a power headroom report PHR of the VoLTE service.
8. The apparatus of claim 7, wherein the determining module is specifically configured to determine that the terminal device is located at a far point when it is determined that the power headroom in the PHR is less than a first threshold; and when the power margin in the PHR is determined to be larger than a second threshold value, determining that the terminal equipment is located at a near point.
9. A base station, comprising:
a memory to store instructions; and
a processor configured to execute the instructions, wherein the instructions, when executed, cause the base station to implement the method of any of claims 1-4.
10. A storage medium, characterized in that it comprises a computer program which, when run on a computer, causes the computer to carry out the method of any one of claims 1 to 4.
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