CN108684072B

CN108684072B - Uplink transmission power control method for carrier aggregation between base stations, base station and equipment

Info

Publication number: CN108684072B
Application number: CN201810381791.5A
Authority: CN
Inventors: 戴明增; 张健; 黄曲芳; 曾清海
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-04-25
Filing date: 2013-04-25
Publication date: 2021-07-09
Anticipated expiration: 2033-04-25
Also published as: CN108684072A

Abstract

The embodiment of the invention provides an uplink transmission power control method for carrier aggregation between base stations, a base station and equipment, wherein the method comprises the following steps: the method comprises the steps that a first base station obtains the maximum uplink transmitting power distributed to the first base station by User Equipment (UE), and the first base station configures the uplink transmitting power for the UE according to the maximum uplink transmitting power. According to the method provided by the invention, as the maximum transmitting power allocated to the first base station is allocated according to the uplink resource state information of the second base station, the power allocated to each base station by the UE can be coordinated, so that the first base station can accurately allocate the uplink transmitting power to the UE, and the throughput of the UE is improved while the requirements of the transmitting power of a plurality of base stations are met. The uplink resource states configured by other base stations are considered among the base stations, so that the allocated uplink transmitting power can reduce or even avoid the phenomenon of waste, and the transmission efficiency is improved.

Description

Uplink transmission power control method for carrier aggregation between base stations, base station and equipment

Technical Field

The embodiment of the invention relates to a wireless communication technology, in particular to an uplink transmission power control method for carrier aggregation between base stations, a base station and equipment.

Background

With the development of mobile communication technology, the 3rd Generation Partnership Project (3 GPP) has made higher requirements on peak data rate, system bandwidth, and the like. In order to meet these requirements, Carrier Aggregation (CA) is introduced into a 3GPP Long Term Evolution Advanced system (Long Term Evolution Advanced, LTE-a for short). CA can acquire a larger bandwidth by aggregating a plurality of contiguous or non-contiguous Component Carriers (CCs), thereby improving peak data rate and system throughput. In a carrier aggregation system, when a User Equipment (UE) operates on multiple carriers, an eNB is allowed to schedule the UE to perform uplink transmission simultaneously on all or part of the carriers. In this case, for the eNB to reasonably schedule, the UE needs to report its Power Headroom (PH).

The CCs in the CA may be provided by the same base station (referred to as intra-base-station CA) or may be provided by different base stations (referred to as inter-base-station CA). In the existing LTE-a standard, for an intra-site CA, after a Power Headroom Report (PHR) is triggered, a UE sends a PHR in any serving cell, including information such as a Power Headroom reserved for each serving cell. The base station receives the PHR, and can estimate the downlink path loss of the UE in each serving cell and coordinate the uplink resource allocation of each serving cell. For CA between base stations, after PHR is triggered, UE sends PHR in any serving cell and can only be received by one of the base stations, and the base station receiving the PHR does not know the uplink resource allocation condition of other base stations and cannot coordinate the uplink resource of each serving cell. Thereby causing the problems of waste of transmission resources and low transmission efficiency.

Disclosure of Invention

The embodiment of the invention provides an uplink transmission power control method for carrier aggregation between base stations, a base station and equipment, which are used for avoiding the waste of scheduling uplink resources for UE by the base station and improving the transmission efficiency.

The first aspect of the present invention provides a method for controlling uplink transmit power of carrier aggregation between base stations, including:

a first base station acquires the maximum uplink transmission power distributed to the first base station by User Equipment (UE), wherein the maximum uplink transmission power is determined according to the uplink resource state scheduled to the UE by a second base station;

and the first base station configures uplink transmitting power for the UE according to the maximum uplink transmitting power.

In a first possible implementation manner of the first aspect of the present invention, the first base station is a secondary base station, and the second base station is a primary base station.

With reference to the first aspect of the present invention and the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect of the present invention, the obtaining, by the first base station, the maximum uplink transmit power allocated to the first base station by the UE includes:

the first base station receives an uplink resource state scheduled by the second base station to the UE from the second base station or the UE;

and the first base station determines the maximum uplink transmitting power distributed to the first base station by the UE according to the uplink resource state scheduled to the UE by the second base station.

With reference to the first aspect of the present invention and the first possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect of the present invention, the obtaining, by the first base station, the maximum uplink transmit power allocated to the first base station by the UE includes:

and the first base station receives the maximum uplink transmission power distributed to the first base station by the UE from the second base station or the UE, wherein the maximum uplink transmission power is determined by the second base station or the UE according to the uplink resource state scheduled to the UE by the second base station.

With reference to the second or third possible implementation manner of the first aspect of the present invention, in a fourth possible implementation manner of the first aspect of the present invention, the uplink resource status is semi-persistent scheduling configuration information of an uplink resource scheduled for the UE when the second base station establishes a voice service for the UE.

In a fifth possible implementation manner of the first aspect of the present invention, the semi-persistent scheduling configuration information includes: the SPS configuration command, the SPS configuration deletion command, the SPS activation instruction and the SPS deactivation instruction are sent to the mobile terminal.

With reference to the second possible implementation manner of the first aspect of the present invention, in a sixth possible implementation manner of the first aspect of the present invention, the determining, by the first base station, the maximum uplink transmit power allocated to the first base station by the UE according to the uplink resource status scheduled by the second base station to the UE includes:

the first base station determines the offset of uplink transmitting power according to the uplink resource state scheduled to the UE by the second base station;

and the first base station superposes the offset with the initial maximum uplink transmission power distributed to the first base station by the UE, and determines the maximum uplink transmission power distributed to the first base station by the UE.

In a seventh possible implementation manner of the first aspect of the present invention, the determining, by the first base station, the offset of the uplink transmission power according to the uplink resource state scheduled by the second base station to the UE includes:

and the first base station identifies that the uplink resource scheduled to the UE by the second base station at the current moment is lower than a set threshold value according to the uplink resource state scheduled to the UE by the second base station, and then determines the offset of the uplink transmitting power.

In an eighth possible implementation manner of the first aspect of the present invention, the offset value is pre-configured.

With reference to the first aspect of the present invention and the first and second possible implementation manners of the first aspect, in a ninth possible implementation manner of the first aspect of the present invention, after the allocating, by the first base station, uplink transmit power to the UE according to the maximum uplink transmit power, the method further includes:

and when the uplink transmitting power determined by the first base station changes relative to a historical value or a change value exceeds a preset threshold value, acquiring the power margin of the UE recalculated according to the maximum uplink transmitting power.

With reference to the first aspect and the first to ninth possible implementation manners of the first aspect, in a tenth possible implementation manner of the first aspect of the present invention, the method further includes:

the first base station receives preset power information sent by the second base station, wherein the preset power information at least comprises uplink transmitting power preset and configured to the UE by the second base station at the next moment;

and the first base station determines the uplink transmitting power configured to the UE by the first base station at the next moment according to the preset power information.

In an eleventh possible implementation manner of the first aspect of the present invention, the preset power information includes:

the maximum transmitting power of the UE, the maximum transmitting power distributed to the second base station by the UE, the uplink control information scheduling state of the UE, the maximum transmitting power distributed to each carrier wave of the second base station by the UE and the offset of the uplink transmitting power adopted by the second base station.

With reference to the first aspect and the first to eleventh possible implementation manners of the first aspect, in a twelfth possible implementation manner of the first aspect, the method further includes:

the first base station acquires initial maximum uplink transmission power distributed to the first base station by the UE, wherein the initial maximum uplink transmission power is determined according to downlink path loss or uplink path loss between each base station and the UE;

and the first base station distributes uplink transmitting power for the UE according to the initial maximum uplink transmitting power.

In a thirteenth possible implementation manner of the first aspect of the present invention, the acquiring, by the first base station, the initial maximum uplink transmission power allocated to the first base station by the UE includes:

and the first base station receives initial maximum uplink transmission power which is reported by the UE and allocated to the first base station by the UE, wherein the initial maximum uplink transmission power is allocated from the maximum uplink transmission power of the UE by the UE according to the downlink path loss ratio between each base station and the UE.

With reference to the twelfth possible implementation manner of the first aspect of the present invention, in a fourteenth possible implementation manner of the first aspect of the present invention, the obtaining, by the first base station, the initial maximum uplink transmit power allocated to the first base station by the UE includes:

and the first base station receives initial maximum uplink transmission power which is distributed to the first base station by the UE and sent by the second base station, wherein the initial maximum uplink transmission power is distributed from the maximum uplink transmission power of the UE by the second base station according to the downlink path loss ratio between each base station and the UE.

With reference to the twelfth possible implementation manner of the first aspect of the present invention, in a fifteenth possible implementation manner of the first aspect of the present invention, the acquiring, by the first base station, the initial maximum uplink transmit power allocated to the first base station by the UE includes:

the first base station receives downlink path loss of each base station reported by the UE;

and the first base station calculates and obtains the initial maximum uplink transmitting power distributed to the first base station by the UE from the maximum uplink transmitting power of the UE according to the proportion of the downlink path loss.

With reference to the twelfth possible implementation manner of the first aspect of the present invention, in a sixteenth possible implementation manner of the first aspect of the present invention, the obtaining, by the first base station, the initial maximum uplink transmit power allocated to the first base station by the UE includes:

the first base station acquires uplink path loss between each base station and UE sent by the second base station;

and the first base station calculates and obtains the initial maximum uplink transmitting power distributed to the first base station by the UE from the maximum uplink transmitting power of the UE according to the proportion of the uplink path loss.

In a seventeenth possible implementation manner of the first aspect of the present invention, the first base station receives a sounding reference signal sent by the UE;

the first base station determines uplink loss between the first base station and the UE according to the receiving power and the sending power of the sounding reference signal;

and the first base station reports the uplink loss between the first base station and the UE to the second base station so that the second base station can forward the uplink loss to other base stations.

With reference to the twelfth to seventeenth possible implementation manners of the first aspect of the present invention, in an eighteenth possible implementation manner of the first aspect of the present invention, after the obtaining, by the first base station, the initial maximum uplink transmit power allocated to the first base station by the UE, the method further includes:

and the first base station adds a supplementary offset in the initial maximum uplink transmitting power.

With reference to the twelfth to eighteenth possible implementation manners of the first aspect of the present invention, in a nineteenth possible implementation manner of the first aspect of the present invention, the obtaining, by the first base station, the initial maximum uplink transmit power allocated to the first base station by the UE includes:

and the first base station acquires the initial maximum uplink transmission power allocated to the first base station by the UE according to a set period, or when the uplink path loss or the downlink path loss changes, or when a path loss change value exceeds a set threshold value.

A second aspect of the present invention provides a method for controlling uplink transmit power of carrier aggregation between base stations, including:

the second base station provides the uplink resource state scheduled by the second base station to the User Equipment (UE) to the first base station, so that the first base station determines the maximum uplink transmission power distributed to the first base station by the UE according to the uplink resource state scheduled to the UE by the second base station;

and the second base station schedules the uplink resource for the UE according to the uplink resource state.

In a first possible implementation manner of the second aspect of the present invention, the first base station is a secondary base station, and the second base station is a primary base station.

With reference to the second aspect and the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect of the present invention, the providing, by the second base station, the uplink resource status scheduled by the second base station to the UE to the first base station includes:

the second base station sends the uplink resource state scheduled to the UE by the second base station to the first base station; or

And the second base station sends the uplink resource state scheduled to the UE by the second base station to the first base station through the UE.

In a third possible implementation manner of the second aspect of the present invention, the sending, by the second base station, the uplink resource status scheduled by the second base station to the UE to the first base station through the UE includes:

and the second base station sends the uplink resource state scheduled to the UE by the second base station to the UE through a media access control unit (MAC CE), a Radio Resource Control (RRC) message or uplink control information, and sends the uplink resource state to the first base station through the UE.

With reference to the second aspect and the first possible implementation manner of the second aspect, in a fourth possible implementation manner of the second aspect of the present invention, the providing, by the second base station, the uplink resource status scheduled by the second base station to the UE to the first base station includes:

when the second base station establishes voice service for the UE, configuring semi-static scheduling of uplink resources for the UE;

and the second base station sends the semi-static scheduling configuration information to the first base station, or sends the semi-static scheduling configuration information to the UE so as to send the semi-static scheduling configuration information to the first base station through the UE.

In a fifth possible implementation manner of the second aspect of the present invention, the semi-persistent scheduling configuration information includes: a semi-persistent scheduling, SPS, configuration delete, SPS activation, and SPS deactivation command.

With reference to the second aspect and the first to fifth possible implementation manners of the second aspect, in a sixth possible implementation manner of the second aspect, the method further includes:

the second base station configures preset power information, wherein the preset power information at least comprises uplink transmitting power preset and configured to the UE by the second base station at the next moment;

and the second base station sends the preset power information to the first base station, so that the first base station determines the uplink transmitting power configured to the UE by the first base station at the next moment according to the preset power information.

In a seventh possible implementation manner of the second aspect of the present invention, the preset power information includes:

With reference to the second aspect and the first to seventh possible implementation manners of the second aspect, in an eighth possible implementation manner of the second aspect, the method further includes:

the second base station acquires initial maximum uplink transmission power distributed to the second base station by the UE, wherein the initial maximum uplink transmission power is determined according to downlink path loss or uplink path loss between each base station and the UE;

and the second base station distributes uplink transmitting power for the UE according to the initial maximum uplink transmitting power.

In a ninth possible implementation manner of the second aspect of the present invention, the acquiring, by the second base station, the initial maximum uplink transmission power allocated to the second base station by the UE includes:

and the second base station receives initial maximum uplink transmission power which is reported by the UE and is distributed to the second base station by the UE, wherein the initial maximum uplink transmission power is distributed from the maximum uplink transmission power of the UE by the UE according to the downlink path loss ratio between each base station and the UE.

With reference to the eighth possible implementation manner of the second aspect of the present invention, in a tenth possible implementation manner of the second aspect of the present invention, the method further includes:

the second base station receives the initial maximum uplink transmitting power which is reported by the UE and distributed to each base station by the UE; or

The second base station receives downlink path loss of each base station reported by the UE, and calculates and obtains initial maximum uplink transmission power distributed to each base station by the UE from the maximum uplink transmission power of the UE according to the proportion of the downlink path loss;

and the second base station sends each initial maximum uplink transmission power to the corresponding base station.

With reference to the eighth possible implementation manner of the second aspect of the present invention, in an eleventh possible implementation manner of the second aspect of the present invention, the acquiring, by the second base station, the initial maximum uplink transmission power allocated to the second base station by the UE includes:

the second base station acquires uplink path loss between the base station and the UE transmitted by each base station;

the second base station calculates and obtains initial maximum uplink transmitting power distributed to each base station by the UE from the maximum uplink transmitting power of the UE according to the proportion of uplink path loss;

In a twelfth possible implementation manner of the second aspect of the present invention, the method further includes:

the second base station receives a sounding reference signal sent by the UE;

and the second base station determines the uplink loss between the second base station and the UE according to the receiving power and the transmitting power of the sounding reference signal.

With reference to the tenth to twelfth possible implementation manners of the second aspect of the present invention, in a thirteenth possible implementation manner of the second aspect of the present invention, after the obtaining, by the second base station, the initial maximum uplink transmit power allocated to each base station by the UE, the method further includes:

and the second base station adds a supplementary offset in the initial maximum uplink transmitting power distributed to the secondary base station.

With reference to the eighth to thirteenth possible implementation manners of the second aspect of the present invention, in a fourteenth possible implementation manner of the second aspect of the present invention, the acquiring, by the second base station, the initial maximum uplink transmission power allocated to the second base station by the UE includes:

and the second base station acquires the initial maximum uplink transmission power allocated to the second base station by the UE according to a set period, or when the uplink path loss or the downlink path loss changes, or when a path loss change value exceeds a set threshold value.

The third aspect of the present invention provides a method for controlling uplink transmit power of carrier aggregation between base stations, including:

user Equipment (UE) acquires an uplink resource state scheduled to the UE by a second base station;

the UE reports an uplink resource state scheduled to the UE by the second base station to a first base station, so that the first base station determines the maximum uplink transmitting power distributed to the first base station by the UE according to the uplink resource state; or

And the UE determines the maximum uplink transmitting power distributed to the first base station by the UE according to the uplink resource state scheduled to the UE by the second base station and reports the maximum uplink transmitting power to the first base station.

In a first possible implementation of the third aspect of the invention,

the first base station is an auxiliary base station, and the second base station is a main base station.

With reference to the third aspect and the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect of the present invention, the determining, by the UE, the maximum uplink transmission power allocated to the first base station by the UE according to the uplink resource status scheduled by the second base station to the UE includes:

the UE determines the offset of uplink transmitting power according to the uplink resource state scheduled to the UE by the second base station;

and the UE superposes the offset with the initial maximum uplink transmission power distributed to the first base station by the UE, and determines the maximum uplink transmission power distributed to the first base station by the UE.

In a third possible implementation manner of the third aspect of the present invention, the offset value is pre-configured or issued by the second base station through network signaling.

With reference to the third aspect of the present invention and the first to third possible implementation manners of the third aspect, in a fourth possible implementation manner of the third aspect of the present invention, the method further includes:

the UE receives an uplink resource state sent by the second base station through a media access control unit (MAC CE), a Radio Resource Control (RRC) message or uplink control information; or

The UE receives a semi-persistent scheduling (SPS) configuration command, an SPS configuration deleting command, an SPS activation instruction and an SPS deactivation instruction which are sent by the second base station, and the SPS configuration deleting command, the SPS activation instruction and the SPS deactivation instruction are used as the uplink resource state; or

And the UE identifies whether the second base station does not schedule the uplink resource within the set time, and determines the uplink resource state according to the identification result.

With reference to the third aspect of the present invention and the first to fourth possible implementation manners of the third aspect, in a fifth possible implementation manner of the third aspect of the present invention, the method further includes:

the UE reports downlink path loss between the UE and the base station to the base station so that the base station determines the initial maximum uplink transmitting power distributed by the UE at the base station according to the downlink path loss; or

And the UE determines the initial maximum uplink transmitting power distributed to the base station by the UE according to the downlink path loss between the UE and the base station, and reports the initial maximum uplink transmitting power to the base station.

In a sixth possible implementation manner of the third aspect of the present invention, the reporting, by the UE, the downlink path loss between the UE and the base station to the base station includes:

the UE measures downlink path loss between the UE and each base station;

and the UE reports the downlink path loss between the UE and each base station to the second base station.

With reference to the fifth possible implementation manner of the third aspect, in a seventh possible implementation manner of the third aspect, the determining, by the UE, an initial maximum uplink transmit power allocated to the base station by the UE according to a downlink path loss between the UE and the base station, and reporting to the base station includes:

the UE measures downlink path loss between the UE and each base station;

the UE calculates and obtains initial maximum uplink transmitting power distributed to each base station from the maximum uplink transmitting power of the UE according to the proportion of downlink path loss between the UE and each base station;

and the UE reports the determined initial maximum uplink transmission power to each base station or reports the determined initial maximum uplink transmission power to the second base station so as to be forwarded to each base station through the second base station.

With reference to the sixth or seventh possible implementation manner of the third aspect of the present invention, in an eighth possible implementation manner of the third aspect of the present invention, the measuring, by the UE, downlink path loss with each base station includes:

and the UE receives the sounding reference signals sent by each base station, and determines the downlink path loss between the UE and each base station according to the receiving power and the sending power of the sounding reference signals.

With reference to the seventh possible implementation manner of the third aspect of the present invention, in a ninth possible implementation manner of the third aspect of the present invention, after the UE calculates and obtains initial maximum uplink transmit power allocated to each base station from maximum uplink transmit power of the UE according to a ratio of downlink path loss to each base station, the method further includes:

the UE adds a supplemental offset in the maximum uplink transmit power allocated to the first base station.

With reference to the fifth to ninth possible implementation manners of the third aspect of the present invention, in a tenth possible implementation manner of the third aspect of the present invention,

and the UE acquires the initial maximum uplink transmitting power distributed to each base station by the UE according to a set period, or when the uplink path loss or the downlink path loss changes, or when the path loss change value exceeds a set threshold value.

A fourth aspect of the present invention provides a first base station, including:

a power obtaining module, configured to obtain a maximum uplink transmission power allocated to the first base station by a UE, where the maximum uplink transmission power is determined according to an uplink resource state scheduled to the UE by a second base station;

and the power determining module is used for configuring uplink transmitting power for the UE according to the maximum uplink transmitting power.

In a first possible implementation manner of the fourth aspect of the present invention, the first base station is a secondary base station, and the second base station is a primary base station.

With reference to the fourth aspect and the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect of the present invention, the power obtaining module includes:

an uplink resource status receiving unit, configured to receive, from the second base station or the UE, an uplink resource status that is scheduled by the second base station to the UE;

and the uplink transmitting power determining unit is used for determining the maximum uplink transmitting power distributed to the first base station by the UE according to the uplink resource state scheduled to the UE by the second base station.

With reference to the fourth aspect and the first possible implementation manner of the fourth aspect, in a third possible implementation manner of the fourth aspect, the power obtaining module is specifically configured to receive, from the second base station or the UE, a maximum uplink transmission power allocated to the first base station by the UE, where the maximum uplink transmission power is determined by the second base station or the UE according to an uplink resource state scheduled to the UE by the second base station.

With reference to the second or third possible implementation manner of the fourth aspect of the present invention, in a fourth possible implementation manner of the fourth aspect of the present invention, the uplink resource status is semi-persistent scheduling configuration information of an uplink resource scheduled for the UE when the second base station establishes a voice service for the UE.

In a fifth possible implementation manner of the fourth aspect of the present invention, the semi-persistent scheduling configuration information includes: a semi-persistent scheduling, SPS, configuration delete, SPS activation, and SPS deactivation command.

With reference to the second possible implementation manner of the fourth aspect of the present invention, in a sixth possible implementation manner of the fourth aspect of the present invention, the power determining module includes:

a power offset determining unit, configured to determine an offset of uplink transmit power according to an uplink resource state scheduled by the second base station to the UE;

a power determining unit, configured to superimpose the offset with an initial maximum uplink transmission power allocated to the first base station by the UE, and determine the maximum uplink transmission power allocated to the first base station by the UE.

In a seventh possible implementation manner of the fourth aspect of the present invention, the power offset determining unit is specifically configured to:

and according to the uplink resource state scheduled to the UE by the second base station, when the uplink resource scheduled to the UE by the second base station at the current moment is identified to be lower than a set threshold value, determining the offset of uplink transmitting power.

In an eighth possible implementation manner of the fourth aspect of the present invention, the offset value is pre-configured.

With reference to the fourth aspect and the first and second possible implementation manners of the fourth aspect, in a ninth possible implementation manner of the fourth aspect of the present invention, the method further includes:

and a power headroom determining module, configured to obtain a power headroom of the UE recalculated according to the maximum uplink transmission power when the uplink transmission power determined by the first base station changes with respect to a historical value or a change value exceeds a preset threshold value.

With reference to the fourth aspect and the first to ninth possible implementation manners of the fourth aspect, in a tenth possible implementation manner of the fourth aspect of the present invention, the method further includes:

a preset power receiving module, configured to receive preset power information sent by the second base station, where the preset power information at least includes uplink transmit power preset by the second base station to the UE at a next time;

and the preset power configuration module is used for determining the uplink transmitting power configured to the UE by the first base station at the next moment according to the preset power information.

In an eleventh possible implementation manner of the fourth aspect of the present invention, the preset power information includes:

With reference to the fourth aspect and the first to eleventh possible implementation manners of the fourth aspect, in a twelfth possible implementation manner of the fourth aspect of the present invention, the method further includes:

an initial maximum uplink transmission power obtaining module, configured to obtain an initial maximum uplink transmission power allocated to the first base station by the UE, where the initial maximum uplink transmission power is determined according to a downlink path loss or an uplink path loss between each base station and the UE;

and the power distribution module is used for distributing uplink transmitting power to the UE according to the initial maximum uplink transmitting power.

In a thirteenth possible implementation manner of the fourth aspect of the present invention, the initial maximum uplink transmission power obtaining module is specifically configured to:

and receiving initial maximum uplink transmission power which is reported by the UE and allocated to the first base station by the UE, wherein the initial maximum uplink transmission power is allocated from the maximum uplink transmission power of the UE by the UE according to the downlink path loss ratio between each base station and the UE.

With reference to the twelfth possible implementation manner of the fourth aspect of the present invention, in a fourteenth possible implementation manner of the fourth aspect of the present invention, the initial maximum uplink transmission power obtaining module is specifically configured to: and receiving initial maximum uplink transmission power which is distributed to the first base station by the UE and sent by the second base station, wherein the initial maximum uplink transmission power is distributed from the maximum uplink transmission power of the UE by the second base station according to the downlink path loss ratio between each base station and the UE.

With reference to the twelfth possible implementation manner of the fourth aspect of the present invention, in a fifteenth possible implementation manner of the fourth aspect of the present invention, the initial maximum uplink transmission power obtaining module is specifically configured to:

and receiving downlink path loss of each base station reported by the UE, and calculating and obtaining initial maximum uplink transmitting power distributed to the first base station by the UE from the maximum uplink transmitting power of the UE according to the proportion of the downlink path loss.

With reference to the twelfth possible implementation manner of the fourth aspect of the present invention, in a sixteenth possible implementation manner of the fourth aspect of the present invention, the initial maximum uplink transmission power obtaining module is specifically configured to:

and acquiring uplink loss between each base station and the UE, which is sent by the second base station, and calculating and acquiring initial maximum uplink transmitting power distributed to the first base station by the UE from the maximum uplink transmitting power of the UE according to the proportion of the uplink loss.

In a seventeenth possible implementation manner of the fourth aspect of the present invention, the base station according to claim 64 is further configured to:

a reference signal receiving module, configured to receive a sounding reference signal sent by the UE;

an uplink path loss determining module, configured to determine an uplink path loss between the first base station and the UE according to the received power and the transmitted power of the sounding reference signal;

and a path loss reporting module, configured to report the uplink path loss between the first base station and the UE to the second base station, so that the second base station forwards the uplink path loss to other base stations.

With reference to the twelfth to seventeenth possible implementation manners of the fourth aspect of the present invention, in an eighteenth possible implementation manner of the fourth aspect of the present invention, the initial maximum uplink transmission power obtaining module is further configured to:

and after acquiring the initial maximum uplink transmission power distributed to the first base station by the UE, adding a supplementary offset into the initial maximum uplink transmission power.

With reference to the twelfth to eighteenth possible implementation manners of the fourth aspect of the present invention, in a nineteenth possible implementation manner of the fourth aspect of the present invention, the initial maximum uplink transmission power obtaining module is configured to: and acquiring the initial maximum uplink transmission power allocated to the first base station by the UE according to a set period, or when the uplink path loss or the downlink path loss changes, or when the path loss change value exceeds a set threshold value.

A fifth aspect of the present invention provides a second base station, including:

an uplink resource state providing module, configured to provide an uplink resource state, which is scheduled by the second base station to the UE, to the first base station, so that the first base station determines, according to the uplink resource state, which is scheduled by the second base station to the UE, a maximum uplink transmission power allocated to the first base station by the UE;

and the uplink resource scheduling module is used for scheduling the uplink resources for the UE according to the uplink resource state.

In a first possible implementation manner of the fifth aspect of the present invention, the first base station is a secondary base station, and the second base station is a primary base station.

With reference to the fifth aspect and the first possible implementation manner of the fifth aspect, in a second possible implementation manner of the fifth aspect of the present invention, the uplink resource status providing module is specifically configured to:

sending the uplink resource state scheduled by the second base station to the UE to the first base station; or

And sending the uplink resource state scheduled by the second base station to the UE to the first base station through the UE.

In a third possible implementation manner of the fifth aspect of the present invention, the uplink resource status providing module is specifically configured to:

and the uplink resource state scheduled to the UE by the second base station is sent to the UE through a media access control (MAC CE) unit, a Radio Resource Control (RRC) message or uplink control information, and is sent to the first base station through the UE.

With reference to the fifth aspect and the first possible implementation manner of the fifth aspect, in a fourth possible implementation manner of the fifth aspect of the present invention, the uplink resource status providing module is specifically configured to:

when voice service is established for the UE, configuring semi-static scheduling of uplink resources for the UE; and sending the semi-persistent scheduling configuration information to the first base station, or sending the semi-persistent scheduling configuration information to the UE so as to be sent to the first base station through the UE.

In a fifth possible implementation manner of the fifth aspect of the present invention, the semi-persistent scheduling configuration information includes: a semi-persistent scheduling, SPS, configuration delete, SPS activation, and SPS deactivation command.

With reference to the fifth aspect and the first to fifth possible implementation manners of the fifth aspect, in a sixth possible implementation manner of the fifth aspect of the present invention, the method further includes:

a preset power configuration module, configured to configure preset power information, where the preset power information at least includes uplink transmit power preset by the second base station to the UE at a next time;

and the preset power information sending module is used for sending the preset power information to the first base station so that the first base station can determine the uplink transmitting power configured to the UE by the first base station at the next moment according to the preset power information.

In a seventh possible implementation manner of the fifth aspect of the present invention, the preset power information includes:

With reference to the fifth aspect and the first to seventh possible implementation manners of the fifth aspect, in an eighth possible implementation manner of the fifth aspect, the method further includes:

an initial maximum uplink transmission power obtaining module, configured to obtain an initial maximum uplink transmission power allocated to the second base station by the UE, where the initial maximum uplink transmission power is determined according to a downlink path loss or an uplink path loss between each base station and the UE;

In a ninth possible implementation manner of the fifth aspect of the present invention, the initial maximum uplink transmission power module is specifically configured to:

and receiving initial maximum uplink transmission power which is reported by the UE and allocated to the second base station by the UE, wherein the initial maximum uplink transmission power is allocated from the maximum uplink transmission power of the UE by the UE according to the downlink path loss ratio between each base station and the UE.

With reference to the eighth possible implementation manner of the fifth aspect of the present invention, in a tenth possible implementation manner of the fifth aspect of the present invention, the initial maximum uplink transmission power obtaining module is specifically configured to:

receiving initial maximum uplink transmission power which is reported by the UE and distributed to each base station by the UE; or receiving downlink path loss of each base station reported by the UE, and calculating and obtaining initial maximum uplink transmission power distributed to each base station by the UE from the maximum uplink transmission power of the UE according to the proportion of the downlink path loss;

the base station further comprises:

and the initial maximum uplink transmitting power sending module is used for sending each initial maximum uplink transmitting power to the corresponding base station.

With reference to the eighth possible implementation manner of the fifth aspect of the present invention, in an eleventh possible implementation manner of the fifth aspect of the present invention, the initial maximum uplink transmission power obtaining module includes:

an uplink path loss acquisition unit, configured to acquire an uplink path loss between a base station and a UE, where the uplink path loss is sent by each base station;

an initial maximum uplink transmission power allocation unit, configured to calculate, according to a ratio of uplink losses, an initial maximum uplink transmission power allocated to each base station by the UE from the maximum uplink transmission power of the UE;

and the initial maximum uplink transmission power sending module is used for sending each initial maximum uplink transmission power to the corresponding base station.

In a twelfth possible implementation manner of the fifth aspect of the present invention, the method further includes:

and an uplink path loss determining module, configured to determine an uplink path loss between the second base station and the UE according to the received power and the transmission power of the sounding reference signal.

With reference to the tenth to twelfth possible implementation manners of the fifth aspect of the present invention, in a thirteenth possible implementation manner of the fifth aspect of the present invention, the initial maximum uplink transmission power obtaining module is further configured to:

and after obtaining the initial maximum uplink transmission power distributed to each base station by the UE, adding a supplementary offset in the initial maximum uplink transmission power distributed to the secondary base station.

With reference to the eighth to thirteenth possible implementation manners of the fifth aspect of the present invention, in a fourteenth possible implementation manner of the fifth aspect of the present invention, the initial maximum uplink transmission power obtaining module obtains the initial maximum uplink transmission power allocated to the second base station by the UE according to a set period, or when the uplink loss or the downlink loss changes, or when a change value of the path loss exceeds a set threshold value.

A sixth aspect of the present invention provides a UE, including:

an uplink resource state obtaining module, configured to obtain an uplink resource state that is scheduled by the second base station to the UE;

an uplink resource status reporting module, configured to report, to a first base station, an uplink resource status that is scheduled by the second base station to the UE, so that the first base station determines, according to the uplink resource status, a maximum uplink transmit power that is allocated to the first base station by the UE; or

And determining the maximum uplink transmitting power distributed to the first base station by the UE according to the uplink resource state scheduled to the UE by the second base station, and reporting to the first base station.

In a first possible implementation of the sixth aspect of the invention,

With reference to the sixth aspect and the first possible implementation manner of the sixth aspect, in a second possible implementation manner of the sixth aspect of the present invention, the uplink resource status reporting module includes:

a transmission power determining unit, configured to superimpose the offset with an initial maximum uplink transmission power allocated to the first base station by the UE, and determine the maximum uplink transmission power allocated to the first base station by the UE.

In a third possible implementation manner of the sixth aspect of the present invention, the offset value is pre-configured or issued by the second base station through network signaling.

With reference to the sixth aspect and the first to third possible implementation manners of the sixth aspect, in a fourth possible implementation manner of the sixth aspect of the present invention, the uplink resource status acquiring module is specifically configured to:

receiving an uplink resource state sent by the second base station through a media access control (MAC CE) unit, a Radio Resource Control (RRC) message or uplink control information; or

Receiving a semi-persistent scheduling (SPS) configuration command, an SPS configuration deleting command, an SPS activation instruction and an SPS deactivation instruction which are sent by the second base station as the uplink resource state; or

And identifying whether the second base station does not schedule the uplink resource within a set time, and determining the uplink resource state according to the identification result.

With reference to the sixth aspect and the first to fourth possible implementation manners of the sixth aspect, in a fifth possible implementation manner of the sixth aspect of the present invention, the method further includes: an uplink path loss reporting module and an initial maximum uplink transmitting power determining module,

the uplink path loss reporting module is used for reporting downlink path loss between the UE and the base station to the base station so that the base station determines the initial maximum uplink transmitting power distributed by the UE at the base station according to the downlink path loss;

and the initial maximum uplink transmission power determining module is used for determining the initial maximum uplink transmission power distributed to the base station by the UE according to the downlink path loss between the UE and the base station, and reporting the initial maximum uplink transmission power to the base station.

In a sixth possible implementation manner of the sixth aspect of the present invention, the uplink loss reporting module includes:

a downlink path loss measuring unit, configured to measure downlink path loss between each base station and each base station;

and the downlink path loss reporting unit is used for reporting the downlink path loss between the UE and each base station to the second base station.

With reference to the fifth possible implementation manner of the sixth aspect of the present invention, in a seventh possible implementation manner of the sixth aspect of the present invention, the initial maximum uplink transmission power determining module includes:

an initial maximum uplink transmission power allocation unit, configured to calculate and obtain initial maximum uplink transmission power allocated to each base station from maximum uplink transmission power of the UE;

and an initial maximum uplink transmission power reporting unit, configured to report the determined initial maximum uplink transmission power to each base station, or to report the determined initial maximum uplink transmission power to the second base station, so as to forward the determined initial maximum uplink transmission power to each base station through the second base station.

With reference to the sixth or seventh possible implementation manner of the sixth aspect of the present invention, in an eighth possible implementation manner of the sixth aspect of the present invention, the downlink path loss measuring unit is specifically configured to:

and receiving the sounding reference signals sent by each base station, and determining the downlink path loss between each base station and the sounding reference signals according to the receiving power and the sending power of the sounding reference signals.

With reference to the seventh possible implementation manner of the sixth aspect of the present invention, in a ninth possible implementation manner of the sixth aspect of the present invention, the initial maximum uplink transmission power allocation unit is further configured to,

a supplemental offset is added to the maximum uplink transmit power allocated to the first base station.

With reference to the fifth to ninth possible implementation manners of the sixth aspect of the present invention, in a tenth possible implementation manner of the sixth aspect of the present invention, the initial maximum uplink transmission power determining module obtains the initial maximum uplink transmission power allocated to each base station by the UE according to a set period, or when the uplink loss or the downlink loss changes, or when a change value of the path loss exceeds a set threshold value.

A seventh aspect of the present invention provides a first base station, including a processor and a memory, where the memory stores an execution instruction, and when the first base station is running, the processor communicates with the memory, and the processor executes the execution instruction, so that the first base station is ready to perform the method according to the first aspect of the present invention and any one of the first to nineteenth possible implementation manners of the first aspect.

An eighth aspect of the present invention provides a second base station, including a processor and a memory, where the memory stores an execution instruction, and when the second base station operates, the processor communicates with the memory, and the processor executes the execution instruction, so that the second base station is ready to execute the method according to the second aspect and any one of the first to thirteenth possible implementation manners of the second aspect.

A ninth aspect of the present invention provides a UE, comprising a processor and a memory, wherein the memory stores an execution instruction, and when the UE runs, the processor communicates with the memory, and the processor executes the execution instruction to make the UE perform the method according to the third aspect and any one of the first to ninth possible implementation manners of the third aspect.

According to the method provided by the embodiment of the invention, when the first base station distributes the transmitting power for the UE, the first base station distributes the transmitting power according to the maximum transmitting power distributed to the first base station by the UE, and the maximum transmitting power distributed to the first base station is distributed according to the uplink resource state information of the second base station, so that the power distributed to each base station by the UE can be coordinated, the first base station can accurately distribute the uplink transmitting power for the UE, the requirements of the transmitting power of a plurality of base stations are met, and the throughput of the UE is improved. The uplink resource states configured by other base stations are considered among the base stations, so that the allocated uplink transmitting power can reduce or even avoid the phenomenon of waste, and the transmission efficiency is improved.

Drawings

Fig. 1 is a flowchart of a first embodiment of a method for controlling uplink transmit power for inter-base station carrier aggregation according to the present invention;

fig. 2 is a flowchart of a second embodiment of a method for controlling uplink transmit power for inter-base station carrier aggregation according to the present invention;

fig. 3 is a flowchart of a third embodiment of a method for controlling uplink transmit power for inter-base station carrier aggregation according to the present invention;

fig. 4 is a flowchart of a fourth method for controlling uplink transmit power of carrier aggregation between base stations according to the present invention;

fig. 5 is a flowchart of a fifth embodiment of a method for controlling uplink transmit power of carrier aggregation between base stations according to the present invention;

fig. 6 is a flowchart of a sixth embodiment of a method for controlling uplink transmit power of carrier aggregation between base stations according to the present invention;

fig. 7 is a flowchart of a seventh embodiment of a method for controlling uplink transmit power for inter-base station carrier aggregation according to the present invention;

fig. 8 is a flowchart of an eighth embodiment of a method for controlling uplink transmit power for inter-base station carrier aggregation according to the present invention;

fig. 9 is a flowchart of a ninth embodiment of a method for controlling uplink transmit power for inter-base station carrier aggregation according to the present invention;

fig. 10 is a flowchart of a tenth embodiment of a method for controlling uplink transmit power of carrier aggregation between base stations according to the present invention;

fig. 11 is a flowchart of an eleventh embodiment of a method for controlling uplink transmit power of carrier aggregation between base stations according to the present invention;

fig. 12 is a schematic structural diagram of a first base station according to a first embodiment of the present invention;

fig. 13 is a schematic structural diagram of a second embodiment of a first base station provided in the present invention;

fig. 14 is a schematic structural diagram of a second embodiment of a first base station provided in the present invention;

fig. 15 is a schematic structural diagram of a fourth embodiment of a second base station provided in the present invention;

fig. 16 is a schematic structural diagram of a fifth embodiment of a second base station provided in the present invention;

fig. 17 is a schematic structural diagram of a sixth embodiment of a user equipment UE provided in the present invention;

fig. 18 is a schematic structural diagram of a seventh embodiment of a user equipment UE provided in the present invention;

fig. 19 is a schematic structural diagram of an eighth embodiment of a first base station provided in the present invention;

fig. 20 is a schematic structural diagram of a ninth embodiment of a second base station provided in the present invention;

fig. 21 is a schematic structural diagram of a user equipment UE according to a tenth embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Fig. 1 is a flowchart of a first embodiment of a method for controlling uplink transmit power for inter-base station carrier aggregation according to the present invention; in the embodiment of the invention, the UE can simultaneously receive data from a plurality of cells of two base stations, wherein the main base station and the auxiliary base station are provided, the main base station has a main control function and controls the selection of the auxiliary base station, a data distribution strategy and the like, and the auxiliary base station mainly has a data distribution function and is used for increasing data flow. In general, inter-base station carrier aggregation may include one primary base station and a plurality of secondary base stations. In this embodiment, the primary base station and the secondary base station are only logical concepts, and in the process of establishing connection for the UE, the UE is divided into the primary base station and the secondary base station, but as for the base station itself, different UEs may be the primary base station and the secondary base station, and may perform both the functions of the primary base station and the secondary base station. The concepts of the primary base station and the secondary base station in this embodiment are also applicable to the other embodiments. The method provided by the invention is executed by an uplink transmitting power control device for carrier aggregation between base stations, the device is integrated in the base stations, and the method provided by the embodiment comprises the following steps:

step 101, the first base station obtains the maximum uplink transmission power allocated to the first base station by the UE, wherein the maximum uplink transmission power is determined according to the uplink resource state scheduled to the UE by the second base station.

In this embodiment, the obtaining, by the first base station, the maximum uplink transmission power allocated to the first base station by the UE specifically includes that the first base station receives, from the second base station or the UE, an uplink resource state scheduled by the second base station to the UE, and the first base station determines, according to the uplink resource state scheduled by the second base station to the UE, the maximum uplink transmission power allocated to the first base station by the UE. Or, the first base station receives the maximum uplink transmission power allocated to the first base station by the UE from the second base station or the UE, wherein the maximum uplink transmission power is determined by the second base station or the UE according to the uplink resource state scheduled to the UE by the second base station.

The uplink resource status may be semi-static scheduling configuration information of the uplink resource scheduled for the UE when the second base station establishes the voice service for the UE. The semi-static scheduling configuration information may include: a Semi-Persistent Scheduling (SPS) configuration command, an SPS configuration deletion command, an SPS activation indication, and an SPS deactivation indication.

The Uplink Resource state information may also be an Uplink Resource state sent by the second base station through a Media Access Control Element (MAC CE), a Radio Resource Control (RRC) message, or Uplink Control information, specifically, the second base station may determine not to schedule Uplink data of the UE for a period of time according to a transmission condition of the Uplink data, and the Uplink Resource state includes a time and an indication that the second base station does not schedule the Uplink data, or does not schedule Uplink Control information of the UE, such as a Physical Uplink Control Channel (PUCCH). The UE can reasonably allocate the maximum uplink transmit power to the first base station according to the uplink resource state of the second base station, and specifically, since the second base station does not schedule uplink data for a period of time, part or all of the transmit power previously allocated to the second base station may be allocated to the first base station, so as to increase the transmit power of the first base station.

And 102, configuring uplink transmitting power for the UE by the first base station according to the maximum uplink transmitting power.

After the first base station acquires the maximum uplink transmitting power distributed by the UE, the first base station reasonably configures the uplink transmitting power for the UE according to the maximum uplink transmitting power distributed by the UE, and controls the uplink transmitting power distributed to the UE not to exceed the maximum uplink transmitting power of the UE or properly reduces the UE transmitting power.

In the method provided by this embodiment, when the first base station allocates the transmission power to the UE, the first base station allocates the transmission power according to the maximum transmission power allocated to the first base station by the UE, and since the maximum transmission power allocated to the first base station is allocated according to the uplink resource state information of the second base station, the power allocated to each base station by the UE can be coordinated, so that the first base station can accurately allocate the uplink transmission power to the UE, and the throughput of the UE is improved while the requirements of the transmission power of multiple base stations are met. The uplink resource states configured by other base stations are considered among the base stations, so that the allocated uplink transmitting power can reduce or even avoid the phenomenon of waste, and the transmission efficiency is improved.

In this embodiment, the first base station may be a secondary base station, the second base station may be a primary base station, and the secondary base station allocates uplink transmission power in cooperation with an uplink resource state of the primary base station. In practical application, however, the main base station may also allocate uplink transmission power in coordination with the uplink resource status of the secondary base station, or a plurality of secondary base stations may consider the uplink resource status of other base stations.

Fig. 2 is a flowchart of a second embodiment of a method for controlling uplink transmit power of carrier aggregation between base stations according to the present invention, where in this embodiment, the first base station is a secondary base station and the second base station is a primary base station, but those skilled in the art can understand that the first base station is the primary base station and the second base station is the secondary base station. The present embodiment provides a method for semi-statically allocating uplink transmit power of a UE between base stations, where the method provided in this embodiment specifically includes the following steps:

step 201, the first base station receives semi-static scheduling configuration information scheduled by the second base station to the UE from the second base station or the UE.

In this embodiment, the uplink resource status scheduled by the second base station to the UE is semi-persistent scheduling (SPS) configuration information of the uplink resource scheduled by the second base station for the UE when the second base station establishes the voice service for the UE. Wherein the semi-persistent scheduling configuration information includes: an SPS configuration command, an SPS configuration delete command, an SPS activation indication, and an SPS deactivation indication.

The semi-persistent scheduling method is generally applied to a real-time service in which the size of a data packet is relatively fixed and an arrival time interval satisfies a certain rule, such as a Voice over Internet protocol (VoIP) service implemented by sending an IP data packet. The base station indicates the current scheduling information of the UE through a Physical Downlink Control Channel (PDCCH for short) during initial scheduling, and if the UE identifies that the scheduling information is semi-persistent scheduling, the current scheduling information is stored, and the service data is transmitted or received at the same time-frequency resource location every fixed period. The transmission is semi-statically scheduled, the characteristic that a voice data packet arrives periodically can be fully utilized, one-time authorization and periodic use are realized, and PDCCH resources used for scheduling indication in an LTE system can be saved. At the initial stage of service establishment, related semi-static scheduling parameters, such as semi-static transmission time intervals, wireless network identifiers of semi-static cells, uplink transmission power and the like, are configured by the RRC.

Taking a typical VoIP service as an example, if the data packet arrival period is 20ms, the base station gives a semi-persistent scheduling instruction to the UE through the PDCCH, and the UE transmits or receives the scheduling data this time according to the instruction of the PDCCH, and transmits or receives a newly arrived VoIP data packet at the same time-frequency resource location after every 20 ms.

In this embodiment, the second base station issues the SPS configuration, and when the VoIP bearer is established, the second base station issues the SPS configuration to the UE through the RRC reconfiguration message, and simultaneously may send the SPS configuration to the first base station through the interface message of the second base station and the first base station, where the SPS configuration may include a semi-persistent transmission time interval, a semi-persistent scheduling cell radio network identifier (SPS-C-RNTI), an uplink transmission power, and the like.

After acquiring the SPS configuration, the first base station needs to further acquire an SPS state, which includes two states of activation/deactivation. And the first base station analyzes and acquires the SPS state from the received semi-static configuration information. How the first base station acquires the SPS state is described below by a specific example.

The UE obtains the SPS activation instruction by using the SPS-C-RNTI to analyze the PDCCH, and sends the SPS activation instruction to the first base station, or the second base station sends the SPS activation instruction to the UE, and simultaneously sends the SPS activation instruction to the first base station.

For the SPS deactivation state, the UE has two modes of implicit deactivation and display deactivation, the implicit deactivation means that the UE determines to deactivate according to actual needs, and the display deactivation means that the UE executes the deactivation operation when receiving a deactivation instruction sent by the second base station. When the UE is implicitly deactivated, the UE directly sends an SPS deactivation indication to the first base station. When the UE displays deactivation, the second base station transmits an SPS deactivation instruction to the UE, and simultaneously transmits the SPS deactivation instruction to the first base station.

The second base station can also cancel the semi-persistent scheduling mode by issuing an SPS configuration deleting command. When the UE receives the SPS configuration deletion command issued by the second base station, which is usually included in the RRC reconfiguration message, the UE may send the SPS configuration deletion command to the first base station, or when the second base station issues the SPS configuration deletion command to the UE, the UE also issues the SPS configuration deletion command to the first base station, indicating that the SPS configuration of the first base station is released.

In this embodiment, the UE may send various SPS indication information to the first base station through a newly defined MAC CE or RRC layer message. The second base station sends various indication information to the first base station through interface information between the second base station and the first base station.

Step 202, the first base station determines the maximum uplink transmission power allocated to the first base station by the UE according to the semi-persistent scheduling configuration information scheduled to the UE by the second base station.

The method for determining the maximum uplink transmission power allocated to the first base station by the UE according to the semi-persistent scheduling configuration information scheduled to the UE by the second base station specifically includes: and the first base station determines the offset of the uplink transmitting power according to the semi-static scheduling configuration information scheduled to the UE by the second base station. And the first base station superposes the offset with the initial maximum uplink transmission power allocated to the first base station by the UE, and determines the maximum uplink transmission power allocated to the first base station by the UE. It is understood that the offset may also be zero, that is, no offset needs to be added to the first base station, in this case, the initial maximum uplink transmission power allocated to the first base station by the UE is the maximum uplink transmission power allocated to the first base station by the UE.

When the first base station learns that the second base station does not schedule uplink data of the UE in the next period of time according to the semi-persistent scheduling configuration information, for example, when the first base station receives an SPS deactivation instruction or an SPS configuration deletion command, the offset of the uplink power is increased when the maximum uplink transmission power of the first base station is determined, namely, power compensation is used, and partial transmission power of the second base station is distributed to the UEAnd the first base station increases the maximum uplink transmitting power of the first base station. Specifically, the first base station recalculates the maximum transmit power P 'of the UE allocated to the first base station'_TMAXeNB 1. The specific calculation mode is that the second base station indicates the uplink transmission power offset delta P_TMAXThe first base station calculates the maximum uplink transmission power P'_TMAXInitial maximum uplink transmit power P allocated to the first base station at the UE, eNB1_TMAX,eNB1Is added with an offset delta_PTMAXI.e. P'_TMAX,eNB1＝P_TMAX,eNB1+Δ_PTMAX。

When the first base station determines that the second base station has uplink data transmission time according to the SPS activation indication, power compensation is not used, namely when the first base station determines the maximum uplink transmission power, an offset does not need to be added to the initial maximum uplink transmission power.

It will be specifically described below how the first base station determines the offset of the uplink transmission power, and when the first base station recognizes that the uplink resource scheduled by the second base station to the UE at the current time is lower than a set threshold value according to the uplink resource state scheduled by the second base station to the UE, the first base station determines the offset of the uplink transmission power. The value of the offset may also be preconfigured, or the offset may also be dynamically allocated according to the uplink resource status of the UE.

As can be seen from the above description, the first base station needs to acquire the initial maximum uplink transmission power allocated to the first base station by the UE in advance. In this embodiment, the initial maximum uplink transmission power allocated to the first base station by the UE is the initial maximum uplink transmission power determined according to the downlink path loss or the uplink path loss between each base station and the UE, or the initial maximum uplink transmission power may be determined in other manners, for example, the initial maximum uplink transmission power allocated to each base station is specified according to the actual processing capability of each base station, as long as it is ensured that the sum of the initial maximum uplink transmission powers allocated to each base station does not exceed the maximum transmission power of the UE.

Step 203, the first base station obtains the power headroom of the UE recalculated according to the maximum uplink transmission power.

This step is an optional step, and in this embodiment, onlyWhen the maximum uplink transmission power determined by the first base station changes relative to the historical value or the change value exceeds a preset threshold value, the first base station acquires the power margin of the UE recalculated according to the maximum uplink transmission power. Specifically, when the maximum uplink transmission power allocated to the first base station changes, the maximum transmission power of each carrier allocated to the first base station by the UE also changes, and accordingly, the power headroom of the UE also changes, where PH refers to the maximum uplink transmission power P allocated to each carrier of each base station by the UE_CMAX,cAnd the difference of the estimated uplink transmission power used by the UE for uplink transmission. The power headroom PH of the UE on carrier C is divided into two types:

the first type of PH is calculated by the formula: PH is P_CMAX,c–P_PUSCH。

Wherein, P_CMAX,cRepresenting the maximum uplink transmit power, P, allocated by the UE to the carrier C on the first base station_PUSCHThe transmission power of a Physical Uplink Shared Channel (PUSCH) is shown. In this scheme, when data is transmitted on the PUSCH at the same time, control information is not transmitted on the physical uplink control channel PUCCH.

The second type of PH is calculated as: PH is P_CMAX,c–P_PUSCH–P_PUCCH。

Wherein, P_CMAX,cRepresenting the maximum uplink transmit power, P, allocated by the UE to the carrier C on the first base station_PUSCHIndicating the transmission power, P, allocated to the physical uplink shared channel, PUSCH_PUCCHIndicating transmission power information allocated to the PUCCH. In this way, at the same time, transmission of control information on the PUCCH is allowed while data is transmitted on the PUSCH.

In this embodiment, the maximum uplink transmission power P allocated to the first base station_TMAX,eNB1Instead, the offset delta is increased based on the initial maximum uplink transmission power_PTMAX，The maximum uplink transmit power of each carrier of the first base station also changes correspondingly, in this embodiment, the first base station only has one carrier, so that P'_CMAX,c＝P_CMAX,c+Δ_PTMAXI.e. byThe uplink transmission power offset delta is increased on the basis of the maximum uplink transmission power of the carrier C_PTMAXAnd PH 'is P'_CMAX,c–P_PUSCH–P_PUCCHOr PH '═ P'_CMAX,c–P_PUSCH. Of course, the first base station may also have multiple carriers, and may increase the power offset for each carrier appropriately, so as to ensure that the sum of the maximum uplink transmit powers of the carriers after increase does not exceed the maximum uplink transmit power allowed by the UE.

By the method, the transmitting power of the carrier corresponding to the base station can be adjusted according to the actual situation, so that the resource of each carrier can be utilized to the maximum, and the transmission efficiency of uplink data and the throughput of the UE are improved. It is to be understood that the power headroom may also be calculated by the UE and reported to the first base station.

And step 204, the first base station configures uplink transmission power for the UE according to the maximum uplink transmission power distributed to the first base station by the UE, the maximum uplink transmission power of each carrier and the power margin.

The first base station is according to P'_TMAX,eNB1、P’_CMAX.,cAnd PH' allocates uplink transmission power usage for the UE. Specifically, the first base station compares P'_TMAX,eNB1And P'_CMAX.,cAnd selecting the minimum value of the two values to allocate uplink transmission power to the UE, and ensuring that the maximum uplink transmission power allocated to the UE does not exceed the minimum value of the two values.

The second base station is used as the main base station, and the main base station is generally wide in coverage range, so that the continuity of the voice service can be better supported, and the perception of the user can be improved.

In the method provided by this embodiment, uplink transmission power is allocated to each base station in a semi-persistent scheduling manner among the base stations, a semi-persistent scheduling configuration is issued by the second base station, and when the first base station allocates uplink transmission power to the UE, the maximum uplink transmission power allocated to the first base station by the UE is determined according to the semi-persistent scheduling configuration. The first base station can reasonably adjust the uplink transmitting power of the first base station, and the throughput of the UE and the utilization rate of uplink resources are improved.

Fig. 3 is a flowchart of a third embodiment of a method for controlling uplink transmit power of carrier aggregation between base stations according to the present invention, where in this embodiment, an initial maximum uplink transmit power is obtained by calculation according to an uplink loss and a downlink loss, and how to calculate an initial maximum uplink transmit power allocated to each base station by a UE according to the uplink loss and the downlink loss is described in detail, the method provided in this embodiment includes the following steps:

step 301, the first base station obtains an initial maximum uplink transmission power allocated to the first base station by the UE, wherein the initial maximum uplink transmission power is determined according to a downlink path loss or an uplink path loss between each base station and the UE.

In this embodiment, the first base station is an auxiliary base station, the second base station is a main base station, and for the UE, in each access process, there is only one main base station, but there may be multiple auxiliary base stations. The first base station acquires an initial maximum uplink transmission power allocated to the first base station by the UE, and may specifically be implemented by the following three ways:

in a first implementation manner, a first base station receives an initial maximum uplink transmission power allocated to the first base station by a UE, where the initial maximum uplink transmission power is allocated from the maximum uplink transmission power of the UE by the UE according to a downlink path loss ratio between each base station and the UE.

In a second implementation manner, the first base station receives initial maximum uplink transmission power, which is allocated to the first base station by the UE and sent by the second base station, where the initial maximum uplink transmission power is allocated from the maximum uplink transmission power of the UE by the second base station according to a downlink path loss ratio between each base station and the UE.

In a third implementation manner, the first base station acquires uplink path loss between each base station and the UE, which is sent by the second base station; and the first base station calculates and obtains the initial maximum uplink transmitting power distributed to the first base station by the UE from the maximum uplink transmitting power of the UE according to the proportion of the uplink path loss. The first base station not only needs to acquire uplink path loss between each base station and the UE, which is sent by the second base station, but also needs to calculate the uplink path loss between the first base station and the UE by itself, and specifically, the first base station receives a sounding reference signal sent by the UE; then, the first base station determines the uplink loss between the first base station and the UE according to the receiving power and the sending power of the sounding reference signal; and finally, the first base station reports the uplink loss between the first base station and the UE to the second base station so that the second base station can forward the uplink loss to other base stations. In this way, each base station knows the uplink loss to the UE and can allocate power from the maximum uplink transmit power of the UE based on the proportion of the uplink loss.

Step 302, the first base station allocates uplink transmission power to the UE according to the initial maximum uplink transmission power.

In this embodiment, after the first base station obtains the initial maximum uplink transmission power allocated to the first base station by the UE, a supplementary offset may be added to the initial maximum uplink transmission power according to actual needs or configuration of the second base station, where the supplementary offset may be configured to the first base station by the second base station, and when the first base station needs to perform a large amount of data transmission with the UE and the data transmission amount between the UE and the second base station is small, the maximum uplink transmission power allocated to the first base station by the UE may be increased by increasing the uplink transmission power of the first base station, so that throughput of the UE may be increased, utilization rate of the entire network may be improved, and the second base station may not be interfered.

In this embodiment, the first base station may obtain the initial maximum uplink transmission power allocated to the first base station by the UE according to a set period, or when the uplink loss or the downlink loss changes, or when the change value of the path loss exceeds a set threshold value.

In the method provided by this embodiment, when the first base station allocates the uplink transmission power to the UE, the uplink transmission power is determined according to the obtained initial maximum uplink transmission power, and the initial maximum uplink transmission power is determined according to the uplink path loss between each base station and the UE, so that it can be ensured that the initial maximum uplink transmission power allocated to each base station does not exceed the actual requirement of the UE, and an appropriate transmission power can be allocated to each base station according to the path loss between each base station and the UE, thereby providing the throughput of the UE and the utilization rate of uplink resources.

Fig. 4 is a flowchart of a fourth embodiment of a method for controlling uplink transmit power of inter-base station carrier aggregation according to the present invention, where the method provided in this embodiment is executed by an uplink transmit power control device of inter-base station carrier aggregation, and the device is integrated in a base station. The method provided by the embodiment specifically comprises the following steps:

step 401, the second base station provides the uplink resource status scheduled by itself to the UE to the first base station, so that the first base station determines the maximum uplink transmission power allocated to the first base station by the UE according to the uplink resource status scheduled by the second base station to the UE.

Specifically, the second base station may provide the uplink resource status to the first base station in the following two ways:

the first mode is as follows: and the second base station sends the uplink resource state scheduled by the second base station to the UE to the first base station, or sends the uplink resource state scheduled by the second base station to the UE to the first base station through the UE. The sending, by the second base station, the uplink resource status scheduled by the second base station to the UE to the first base station specifically includes: the second base station sends the uplink resource state scheduled to the UE by itself to the UE through the MAC CE, the RRC message or the uplink control information, and sends the uplink resource state to the first base station through the UE.

In the first mode, the second base station may determine not to schedule the UE uplink data at the second base station for a period of time according to the UE uplink transmission condition, and issue a relevant indication to the UE to indicate how long the UE does not schedule the UE uplink data, or indicate not to schedule the UE uplink control information PUCCH for a period of time. The second base station determines an uplink resource state scheduled by itself to the UE, and sends the uplink resource state to the first base station or the UE, specifically, the uplink resource state includes an indication that the second base station does not have uplink data scheduling, corresponding time, and the like.

The second mode is as follows: and when the second base station establishes the voice service for the UE, configuring semi-static scheduling of uplink resources for the UE, and sending the semi-static scheduling configuration information to the first base station or sending the semi-static scheduling configuration information to the UE so as to be sent to the first base station through the UE. Wherein the semi-persistent scheduling configuration information includes: an SPS configuration command, an SPS configuration delete command, an SPS activation indication, and an SPS deactivation indication.

Step 402, the second base station schedules the uplink resource for the UE according to the uplink resource status.

The second base station determines to schedule the uplink resource for the UE according to the uplink resource state distributed to the UE by the second base station, when the second base station has no data to be scheduled, the maximum uplink transmission power can be properly reduced, part of the transmission power is distributed to the first base station, the uplink transmission power of the first base station is increased, and the second base station can be configured to the value of the uplink power offset of the first base station and sends the value to the first base station and the UE, so that the first base station can adjust the uplink transmission power.

In the method provided by this embodiment, the second base station sends the uplink resource status scheduled by the second base station to the first base station, so that the first base station reasonably adjusts the uplink transmission power of the first base station according to the uplink resource status of the second base station, increases the throughput of the UE, and improves the utilization rate of the uplink resource.

Fig. 5 is a flowchart of a fifth embodiment of a method for controlling uplink transmit power for inter-base station carrier aggregation according to the present invention. The method provided by this embodiment can dynamically adjust the uplink transmission power of the UE, where the first base station is a secondary base station and the second base station is a primary base station, and specifically includes the following steps:

step 501, the second base station configures preset power information, where the preset power information at least includes uplink transmission power preset and configured to the UE by the second base station at the next time.

And the second base station configures preset power information in advance according to the condition of data actually needing to be scheduled at the next moment. In this embodiment, the preset power information sent by the second base station to the first base station may include: the maximum transmitting power of the UE, the maximum transmitting power distributed to the second base station by the UE, the uplink control information scheduling state of the UE, the maximum transmitting power distributed to each carrier wave of the second base station by the UE and the offset of the uplink transmitting power adopted by the second base station. The preset power information may further include whether the UE has uplink control information scheduling, and whether uplink data and uplink control information scheduling are concurrent.

Step 502, the second base station sends preset power information to the first base station, so that the first base station determines uplink transmission power configured to the UE by the first base station at the next moment according to the preset power information.

The second base station may send the preset power information to the first base station at each time transmission interval TTI, so that the first base station can accurately allocate uplink power to the UE according to the preset power information. When the second base station has no data scheduling at the next time, the second base station may carry indication information in the preset power information to inform the first base station that there is no data scheduling at the next time,

in this embodiment, when the change frequency of the preset power information of the second base station is not large, in order to reduce the resource for sending the preset power information, the second base station does not need to send the preset power information to the first base station every TTI, and the preset power information may be carried in the preset power information for a period of time.

Step 503, the first base station receives preset power information sent by the second base station, where the preset power information at least includes uplink transmission power preset and configured to the UE by the second base station at the next time.

The first base station can properly increase the transmitting power distributed to the first base station when distributing the uplink transmitting power to the UE at the next moment according to the preset power information sent by the second base station.

And step 504, the first base station determines the uplink transmitting power configured to the UE by the first base station at the next moment according to the preset power information.

Specifically, according to the preset power information, if the maximum transmit power allocated to the second base station by the UE is smaller, the uplink transmit power allocated to the UE at the next time may be increased, but it is necessary to ensure that the sum of the maximum transmit powers allocated to the first base station and the second base station does not exceed the maximum transmit power of the UE. If the maximum transmission power allocated to the second base station by the UE considers the power compensation, the preset power information further includes an offset of the uplink transmission power used by the second base station. And adjusting the maximum transmitting power of each carrier allocated to the first base station and the power margin according to the maximum transmitting power of each carrier allocated to the second base station by the UE. The specific calculation method can refer to the description in embodiment two. The first base station adjusts the uplink transmitting power configured for the UE at the next moment after receiving the preset power information of the second base station at the next moment, if the uplink transmitting power configured for the UE at the next moment by the second base station is smaller, the first base station can properly increase the transmitting power configured for the UE at the next moment by the first base station, so that the UE resources can be reasonably utilized, and if the uplink transmitting power configured for the UE at the next moment by the second base station is larger, the first base station can properly reduce the transmitting power configured for the UE at the next moment by the first base station.

According to the method provided by the embodiment, the first base station can preset the uplink transmitting power configured to the UE at the next moment according to the report of the second base station, and adjust the uplink transmitting power allocated to the UE by the first base station at the next moment in real time, so that the uplink transmitting power of the UE at each base station can be more accurately and reasonably allocated, and the uplink rate and the throughput of the UE are improved.

Fig. 6 is a flowchart of a sixth embodiment of a method for controlling uplink transmit power for inter-base station carrier aggregation according to the present invention. The method provided by the embodiment comprises the following steps:

601. and the second base station acquires the initial maximum uplink transmission power distributed to the second base station by the UE, wherein the initial maximum uplink transmission power is determined according to the downlink path loss or the uplink path loss between each base station and the UE.

The second base station specifically obtains the initial maximum uplink transmission power allocated to the second base station by the UE through the following method.

In the first method, a second base station receives initial maximum uplink transmission power which is distributed to the second base station by UE and reported by the UE, wherein the initial maximum uplink transmission power is distributed from the maximum uplink transmission power of the UE by the UE according to downlink path loss proportions between each base station and the UE.

In the second method, a second base station receives initial maximum uplink transmission power which is reported by UE and distributed to each base station by the UE; or the second base station receives downlink path loss of each base station reported by the UE, and calculates and obtains initial maximum uplink transmission power distributed to each base station by the UE from the maximum uplink transmission power of the UE according to the proportion of each downlink path loss; and the second base station sends each initial maximum uplink transmission power to the corresponding base station.

In the third method, a second base station acquires uplink loss between the base station and UE transmitted by each base station; and the second base station calculates and obtains the initial maximum uplink transmitting power distributed to each base station by the UE from the maximum uplink transmitting power of the UE according to the proportion of the uplink path loss. And the second base station sends each initial maximum uplink transmission power to the corresponding base station. The second base station further needs to calculate an uplink loss between itself and the UE, specifically, the uplink loss between the second base station and the UE is determined according to the receiving power and the transmitting power of the sounding reference signal, where the sounding reference signal is received by the second base station.

602. The second base station adds a supplemental offset in the initial maximum uplink transmit power allocated to the secondary base station.

This step is an optional step, and the second base station may determine whether a supplementary offset needs to be added to the initial maximum uplink transmission power allocated to the secondary base station according to an actual situation. If the supplementary offset is configured in advance, the second base station increases the supplementary offset in the initial maximum uplink transmission power allocated to the first base station, and correspondingly, the second base station decreases the power offset allocated to the second base station, and the amount of decrease is equal to the supplementary offset allocated to the auxiliary base station. If not configured, the supplemental offset need not be increased.

603. And the second base station allocates uplink transmitting power for the UE according to the initial maximum uplink transmitting power.

For the present step, if step 602 is executed, the initial maximum uplink transmission power in the present step is obtained by adding the supplementary offset, and if step 602 is not executed, the initial maximum uplink transmission power in the present step refers to the initial maximum uplink transmission power calculated according to the path loss.

In this embodiment, the second base station obtains the initial maximum uplink transmission power allocated to the second base station by the UE according to a set period, or when the uplink loss or the downlink loss changes, or when the change value of the path loss exceeds a set threshold value.

Fig. 7 is a flowchart of a seventh embodiment of a method for controlling uplink transmit power of inter-base station carrier aggregation according to the present invention, where the method provided in this embodiment is executable by an uplink transmit power control device for inter-base station carrier aggregation, and the device is integrated in a UE, and the method provided in this embodiment includes the following steps:

step 701, the UE obtains the uplink resource status scheduled by the second base station to the UE.

Specifically, the UE obtains the uplink resource state scheduled by the second base station to the UE by the following method: the UE receives an uplink resource state sent by the second base station through the MAC CE, the RRC message or the uplink control information; or the UE receives the SPS configuration command, the SPS configuration deleting command, the SPS activation instruction and the SPS deactivation instruction which are sent by the second base station, and the SPS configuration deleting command, the SPS activation instruction and the SPS deactivation instruction are used as uplink resource states; or the UE identifies whether the second base station does not schedule the uplink resource within the set time, and determines the uplink resource state according to the identification result.

Step 702, the UE reports the uplink resource status scheduled by the second base station to the UE to the first base station, so that the first base station determines the maximum uplink transmission power allocated to the first base station by the UE according to the uplink resource status; or the UE determines the maximum uplink transmitting power distributed to the first base station by the UE according to the uplink resource state scheduled to the UE by the second base station and reports the maximum uplink transmitting power to the first base station.

In this embodiment, after the UE acquires the uplink resource status scheduled by the second base station to the UE, the UE may report the uplink resource status to the first base station, and the first base station determines the maximum uplink transmission power allocated to the first base station by the UE. Certainly, the UE may also determine the maximum uplink transmission power allocated to the first base station by the UE according to the uplink resource status, and report the maximum uplink transmission power to the first base station.

How the UE determines the maximum uplink transmission power allocated to the first base station by the UE according to the uplink resource status scheduled by the second base station will be described below by specific examples. Firstly, the UE determines the offset of the uplink transmitting power according to the uplink resource state scheduled to the UE by the second base station. Then, the UE superimposes the offset with the initial maximum uplink transmission power allocated to the first base station by the UE, and determines the maximum uplink transmission power allocated to the first base station by the UE. The offset value is pre-configured or issued by the second base station through network signaling.

In this embodiment, the UE obtains the initial maximum uplink transmission power allocated to each base station by the UE according to a set period, or when the uplink loss or the downlink loss changes, or when the change value of the path loss exceeds a set threshold value.

In the method provided by this embodiment, the UE obtains the uplink resource status scheduled by the second base station to the UE, and reports the uplink resource status to the first base station, so that the first base station schedules the maximum uplink transmission power to the UE according to the uplink resource status scheduled by the second base station, or the UE determines the maximum uplink transmission power allocated to the first base station according to the uplink resource status scheduled by the second base station to the UE, and reports the maximum uplink transmission power to the first base station. Therefore, the maximum uplink transmitting power distributed to the first base station is ensured to be determined according to the resources among the base stations, the maximum uplink transmitting power can be reasonably distributed to the base stations, and the throughput of the UE and the utilization rate of the network are improved.

In step 702, the UE determines the maximum uplink transmission power allocated to the first base station by the UE according to the uplink resource status scheduled to the UE by the second base station, specifically, by determining the offset of the uplink transmission power and superimposing the offset on the basis of the initial maximum uplink transmission power allocated to the first base station by the UE. For the initial maximum uplink transmission power, the UE may determine the initial maximum uplink transmission power by a plurality of methods, the UE may determine the initial maximum uplink transmission power according to the downlink path loss or the uplink path loss between each base station and the UE, or may determine the initial maximum uplink transmission power by other methods, for example, the initial maximum uplink transmission power allocated to each base station is specified according to the actual processing capability of each base station, as long as it is ensured that the sum of the initial maximum uplink transmission powers allocated to each base station does not exceed the maximum transmission power of the UE.

How the UE determines the initial maximum uplink transmission power will be briefly described below. In one implementation, the UE reports a downlink path loss between the UE and the base station to the base station, so that the base station determines an initial maximum uplink transmit power allocated to the UE at the base station according to the downlink path loss. Reporting, by the UE, to the base station, a downlink path loss packet between the UE and the base station specifically is: the UE firstly measures the downlink path loss between the UE and each base station, and then reports the downlink path loss between the UE and each base station to the second base station.

In another implementation, the UE determines the initial maximum uplink transmit power allocated to the base station by the UE according to the downlink path loss with the base station, and reports the initial maximum uplink transmit power to the base station. The method comprises the following steps that the UE determines the initial maximum uplink transmitting power distributed to the base station by the UE according to the downlink path loss between the UE and the base station, and reports the initial maximum uplink transmitting power to the base station: the UE firstly measures downlink path loss between the UE and each base station, calculates and obtains initial maximum uplink transmitting power distributed to each base station from the maximum uplink transmitting power of the UE according to the proportion of the downlink path loss between the UE and each base station, and finally reports the determined initial maximum uplink transmitting power to each base station or reports the determined initial maximum uplink transmitting power to a second base station so as to be forwarded to each base station through the second base station.

In the two manners, the UE measures the downlink path loss with each base station specifically, the UE receives the sounding reference signal sent by each base station, and determines the downlink path loss with each base station according to the received power and the sent power of the sounding reference signal.

In this embodiment, in order to improve the initial maximum uplink transmission power reasonably allocated to each base station and improve the throughput of the UE, after determining the initial maximum uplink transmission power allocated to each base station, the UE further increases a complementary offset in the maximum uplink transmission power allocated to the first base station, and accordingly reduces the initial maximum uplink transmission power allocated to the second base station.

Fig. 8 is a flowchart of an eighth embodiment of a method for controlling uplink transmit power of carrier aggregation between base stations according to the present invention, and this embodiment describes how to determine and allocate initial maximum uplink transmit power of each base station according to downlink path loss in detail. In this embodiment, the first base station is a secondary base station, and the second base station is a primary base station, which specifically includes the following steps:

step 801, the UE measures the downlink path loss between the UE and each base station.

The UE may measure downlink received power of a Sounding Reference Signal (SRA), and obtain downlink path loss by calculating a difference between transmission power and reception power of the Sounding Reference Signal (SRA), where the Sounding Reference Signal may be a cell Reference Signal crs (cell Reference Signal), each base station sends a Reference Signal to the UE, and carries the transmission power of the Reference Signal in information sent to the UE, and after the UE receives the Reference Signal sent by each base station, the UE measures the reception power of each Reference Signal, and the downlink path loss between the UE and each base station is obtained by subtracting the corresponding reception power from the transmission power of each Reference Signal.

In the following, the UE will be described by taking an example in which the UE has one master base station and one secondary base station, the first base station being the secondary base station, and the second base station being the master base station. Suppose that the downlink loss between the UE and the first base station is PL_eNB1And the downlink path loss between the UE and the second base station is PL_eNB2.。

And step 802, the UE calculates and obtains initial maximum uplink transmitting power distributed to each base station from the maximum uplink transmitting power of the UE according to the downlink path loss ratio between the UE and each base station.

Suppose the maximum transmit power of the UE is P_TMAXThe path loss ratio of the UE under the first base station is α ═ PL_eNB1/(PL_eNB1+PL_eNB2) Then the initial maximum uplink transmission power allocated to the first base station by the UE is P_TMAX,eNB1＝α*P_TMAXThe initial maximum uplink transmission power allocated to the second base station by the UE is P_TMAX,eNB2＝(1-α)*P_TMAX。

In this embodiment, the initial maximum uplink transmission power may be a value directly calculated according to the downlink path loss, or a corrected initial maximum uplink transmission power obtained by adding a supplemental offset to the initial maximum uplink transmission power. Optionally, since the first base station is generally a small base station, a supplementary offset may be added to the UE, so that the UE may increase the transmission power at the first base station, and by increasing the transmission power at the first base station, the throughput of the UE may be increased without interfering with the second base station. For example, the supplemental offset is β x dBm, the initial maximum uplink transmitting power allocated to the second base station is P_TMAX,eNB2＝α*P_TMAX- β, initial maximum uplink transmit power allocated to the first base station is P_TMAX,eNB1＝(1-α)*P_TMAX+ β. In addition, the supplemental offset may also be expressed in other forms, such as a proportional form, where ten percent of the power of the second base station is allocated to the first base station as the supplemental offset. The supplementary offset is configured to the UE by the second base station, for example, the supplementary offset is carried in a radio resource control connection reconfiguration message and sent to the UE.

Step 803, the UE reports the determined initial maximum uplink transmit power to each base station, or to the second base station, so as to forward to each base station through the second base station.

And the UE reports the calculated initial maximum uplink transmission power allocated to the first base station and the second base station so as to be used for allocating uplink transmission power for the first base station and the second base station. The UE may also report the initial maximum uplink transmission power of each base station to the second base station, and the second base station reports the initial maximum uplink transmission power allocated to each base station to each second base station through interface information with the first base station.

Specifically, the UE may report the initial maximum uplink transmission power to the base station through a dedicated rrc connection message, or may use an MAC CE for reporting, for example, a new MAC CE may be defined, as shown in table one:

watch 1

In this embodiment, the UE obtains the initial maximum uplink transmission power allocated to each base station by the UE according to a set period, or when the downlink path loss changes, or when the path loss change value exceeds a set threshold value.

In the method provided by this embodiment, the UE calculates the downlink path loss between the UE and each base station, allocates the initial maximum uplink transmission power to each base station from the maximum uplink transmission power of the UE according to the ratio of the downlink path loss, and sends the calculated maximum uplink transmission power allocated to each base station by the UE to each base station, so that each base station allocates the uplink transmission power and schedules resources for the UE according to the initial maximum uplink transmission power. According to the method provided by the embodiment, when the UE distributes power to each base station, the downlink path loss of each base station is comprehensively considered, the power between each base station can be well coordinated, and the throughput of the UE and the utilization rate of uplink resources are improved.

Fig. 9 is a flowchart of a ninth embodiment of a method for controlling uplink transmit power for inter-base station carrier aggregation according to the present invention. As shown, the method comprises the following steps:

step 901, the UE measures the downlink path loss between the UE and each base station.

In this embodiment, the UE also receives a Reference Signal (Reference Signal) sent by each base station, such as a Cell Reference Signal crs, and determines a downlink path loss between the UE and each base station according to the received power and the sent power of the Reference Signal, and the specific algorithm may refer to the implementation manner of the ninth embodiment, which is not described herein again.

Step 902, the UE reports the downlink path loss between the UE and each base station to the second base station.

In this embodiment, the second base station is a master base station, that is, the UE reports the calculated downlink loss to the master base station, and the UE may use a dedicated radio resource control message, for example, a new RRC downlink loss report message is defined. And after receiving the configuration message of the first base station, the UE triggers to measure and report the downlink loss between the UE and each base station, or when the second base station configures the first base station for the UE, triggers a downlink loss reporting request message to the UE, and the UE measures and reports the downlink loss according to the request message.

The UE is mobile, so the measured downlink path loss is changed, when the downlink path loss is changed, the changed path loss value should be reported again, and the second base station acquires the updated path loss information and recalculates the initial maximum uplink transmitting power distributed to each base station. The UE triggering conditions may be:

and periodically triggering, the network side sends the configured period to the UE, and the UE periodically calculates and reports the downlink path loss of each base station according to the configuration of the network side.

And triggering event, for example, configuring a threshold value of downlink path loss or maximum transmission power change by a network side, and when detecting that the downlink path loss change exceeds the threshold value, triggering to report the downlink path loss of each base station. If the difference threshold of the downlink path loss between the base stations is configured on the network side, when the change of the difference of the path loss between the first base station and the second base station exceeds the threshold, the UE is triggered to report the downlink path loss of each base station. If the ratio threshold of the downlink path loss between the base stations is configured on the network side, when the ratio change between the path loss between the first base station and the second base station exceeds the threshold, the UE is triggered to report the downlink path loss of each base station.

The network side can also issue a downlink path loss request message periodically, and the UE reports the message according to the request of the network side.

Step 903, the second base station receives downlink path loss of each base station reported by the UE, and calculates and obtains initial maximum uplink transmission power allocated to each base station by the UE from the maximum uplink transmission power of the UE according to the ratio of each downlink path loss.

In this embodiment, the second base station further needs to obtain the maximum uplink transmission power of the UE, and specifically, the second base station may determine the maximum uplink transmission power of the UE according to the type of the UE included in the capability information of the UE. And after the UE is accessed to the network, the UE reports the UE capability information to the second base station, wherein the UE capability information comprises the type of the UE, the frequency point supported by the UE and other information. The transmission capacity and power supported for different types of UEs are different, and therefore, the maximum uplink transmission power of a UE can be determined according to the type of the UE.

And after the maximum uplink transmitting power of the UE is determined, the second base station distributes the maximum uplink transmitting power of the UE according to the downlink path loss ratio between each base station and the UE. The specific method may refer to the method for calculating the initial maximum uplink transmit power by the UE in the ninth embodiment, which is not described herein again.

And 904, the second base station sends each initial maximum uplink transmission power to the corresponding base station.

In this step, the second base station issues the allocated initial maximum uplink transmission power of each second base station to the corresponding base station. The second base station may send the first base station via an interface message between the second base station and the first base station, such as an X2 interface message. The first base station receives the initial maximum uplink transmission power distributed to the first base station by the UE sent by the second base station, and the first base station distributes and schedules resources for the UE according to the distributed initial maximum uplink transmission power of the UE.

In this embodiment, the UE reports the downlink path loss of each base station to the second base station, and the second base station calculates, according to the ratio of the downlink path loss, from the maximum uplink transmit power of the UE, to obtain the initial maximum uplink transmit power allocated to the first base station by the UE. It can be understood that the UE may also report the downlink path loss of each base station to the first base station, and the first base station receives the downlink path loss of each base station reported by the UE, and calculates and obtains the initial maximum uplink transmit power allocated to the first base station by the UE from the maximum uplink transmit power of the UE according to the ratio of the downlink path losses. The first base station is a secondary base station, and each secondary base station respectively calculates the initial maximum uplink transmission power allocated to the secondary base station and reports the initial maximum uplink transmission power to the main base station.

In the method provided in this embodiment, the UE calculates the downlink path loss between each base station and each base station, and reports the downlink path loss to the second base station, and the second base station allocates the initial maximum uplink transmit power to each base station according to the ratio of the downlink path loss, and correspondingly sends the initial maximum uplink transmit power to each base station. In the method provided by this embodiment, when the second base station allocates power to each base station, the downlink path loss of each base station is considered comprehensively, the power between each base station is coordinated according to the actual capability of each base station, and the throughput of the UE and the utilization rate of the uplink resource are improved.

Fig. 10 is a flowchart of a tenth embodiment of a method for controlling uplink transmit power of carrier aggregation between base stations according to the present invention, including the following steps:

step 1001, each base station measures uplink loss between the base station and the UE.

Each base station measures an uplink Reference signal sent by the UE, such as the received power of a Sounding Reference signal (Sounding Reference), and the difference between the received power and the transmitted power of the uplink Reference signal is the uplink path loss. Specifically, the first base station receives a sounding reference signal sent by the UE, and the first base station determines an uplink loss between the first base station and the UE according to the received power and the sent power of the sounding reference signal. The second base station calculates the uplink loss in the same manner.

Step 1002, the first base station reports the uplink loss between itself and the UE to the second base station.

In this embodiment, each base station calculates the uplink loss between itself and the UE, and the first base station reports the uplink loss between itself and the UE to the second base station. So that the second base station determines the initial maximum uplink transmission power according to the uplink path loss between each base station and the UE. The first base station may report the uplink loss through an X2 interface message between the first base station and the second base station, where the interface message may be a newly defined dedicated message. The first base station may report the uplink loss at the request of the second base station, may report the uplink loss by itself after the uplink loss changes, or may report the uplink loss periodically according to the configuration of the network side.

And step 1003, the second base station receives uplink path loss between the base station and the UE sent by each base station, and calculates and obtains initial maximum uplink transmission power allocated to each base station by the UE from the maximum uplink transmission power of the UE according to the proportion of each uplink path loss.

How the second base station calculates the initial maximum uplink transmission power allocated to each base station according to each uplink loss ratio will be described below by specific examples. In this embodiment, the UE has only one primary base station and one secondary base station as an example. Suppose the maximum transmit power of the UE is P_TMAXThe uplink loss between the UE and the first base station is PL_eNB1Uplink loss between UE and SeNB is P_TMAX,eNB2The initial maximum uplink transmission power of the UE under the SeNB is P_TMAX,eNB2Initial maximum uplink transmit power P of UE under PeNB_TMAX,eNB1. The PeNB can calculate the initial maximum uplink transmission power allocated to each base station according to the proportion value of each uplink loss, wherein alpha is the proportion of the uplink loss, and alpha is PL_eNB1/(PL_eNB1+PL_eNB2) Then the maximum transmission power of the UE under the PeNB is P_TMAX,eNB1＝α*P_TMAXMaximum transmission power of UE under auxiliary eNB is P_TMAX,eNB2＝(1-α)*P_TMAX。

In this embodiment, the second base station also needs to acquire the maximum uplink transmit power of the UE in advance, and the specific manner may refer to the description in the ninth implementation.

Optionally, in this step, after determining the initial maximum uplink transmission power of each base station according to the uplink loss, the second base station may configure a supplemental offset to the first base station, so that the UE increases the transmission power at the first base station, and increases the throughput of the UE by increasing the transmission power at the first base station without interfering with the second base station. For example, if the supplemental offset is β ═ x dBm, the initial maximum uplink transmit power of the second base station is P_TMAX,eNB2＝α*P_TMAX- β; the initial maximum uplink transmitting power of the first base station is P_TMAX,eNB1＝(1-α)*P_TMAX+ β. In addition, the supplementary offset may also be expressed in other forms, such as a proportional form, and the embodiment is not limited.

Step 1004, the second base station sends each initial maximum uplink transmission power to the corresponding base station.

And the second base station sends each initial maximum uplink transmission power to the corresponding base station through an interface between the second base station and the first base station. And the first base station adjusts the uplink transmitting power of the first base station according to the initial maximum uplink transmitting power.

In the method provided in this embodiment, each base station calculates uplink path loss between the UE and the UE, the first base station reports the uplink path loss to the second base station, and the second base station allocates the initial maximum uplink transmit power to each base station according to the ratio of the uplink path loss, and correspondingly sends the initial maximum uplink transmit power to each base station. In the method provided by this embodiment, when the second base station allocates power to each base station, the downlink path loss of each base station is considered comprehensively, the power between each base station is coordinated according to the actual capability of each base station, and the throughput of the UE and the utilization rate of the uplink resource are improved.

Fig. 11 is a flowchart of an eleventh embodiment of a method for controlling uplink transmit power of carrier aggregation between base stations according to the present invention, which specifically includes the following steps. The method specifically comprises the following steps:

step 1101, the second base station sends the uplink resource status to the UE.

In this embodiment, the second base station may determine not to schedule the UE uplink data at the second base station for a period of time according to the UE uplink transmission condition, and issue a relevant indication to the UE to indicate how long the UE does not schedule the UE uplink data, or indicate not to schedule the UE uplink control information, such as PUCCH, for a period of time. The second base station determines an uplink resource state scheduled by itself to the UE, and sends the uplink resource state to the first base station or the UE, specifically, the uplink resource state includes an indication that the second base station does not have uplink data scheduling, a corresponding time, and the like.

Specifically, the second base station transmits the uplink resource state through the MAC CE, the RRC message, or the uplink control information.

Step 1102, the second base station determines the maximum uplink transmission power and the power headroom which are allocated to each base station by the UE according to the uplink resource state of the UE.

Specifically, the UE determines an offset of uplink transmission power according to the uplink resource status scheduled by the second base station to the UE, and when the second base station has no data scheduling within a certain period of time, the UE superimposes the offset and the initial maximum uplink transmission power allocated to the first base station by the UE, and determines the maximum uplink transmission power allocated to the first base station by the UE. For example, the uplink transmission power offset determined by the UE is delta_PTMAXInitial maximum uplink transmit power P allocated by the UE to the first base station_TMAX,eNB1And then the UE allocates the maximum uplink transmission power P 'to the first base station'_TMAX,eNB1Is P'_TMAX,eNB1＝P_TMAX,eNB1+Δ_PTMAX. In this embodiment, the power headroom may be configured to the UE by the network side, or may be carried in an uplink resource state sent to the UE by the second base station.

When the maximum uplink transmission power allocated to the first base station by the UE changes, the maximum uplink transmission power allocated to each carrier of the first base station by the UE also changes, and it is assumed that the maximum uplink transmission power of each carrier allocated to the first base station by the UE at the previous time is P_CMAX,cMaximum uplink of the carrier assigned to the first base station by the recalculated UEEmission power P'_CMAX,cIs P'_CMAX,c＝P_CMAX,c+Δ_PTMAX,Δ_PTMAXIs the offset of the uplink transmission power. If the power headroom of the first base station is equal to P'_CMAX,c–P_PUSCH–P_PUCCHOr PH '═ P'_CMAX,c–P_PUSCH。

Step 1103, the UE reports the calculated maximum uplink transmission power allocated to the first base station, the calculated maximum uplink transmission power of each carrier, and the calculated power headroom to the first base station.

UE updates the updated P 'TMAX allocated to the first base station, eNB1, P'_CMAXAnd c and PH' are reported to the first base station together for the first base station to schedule and distribute the uplink power of the UE.

Fig. 12 is a schematic structural diagram of a first base station according to an embodiment of the present invention, and as shown in fig. 12, the first base station according to the embodiment includes: a power acquisition module 11 and a power determination module 12.

The power obtaining module 11 is configured to obtain a maximum uplink transmission power allocated to the first base station by the UE, where the maximum uplink transmission power is determined according to an uplink resource state scheduled to the UE by the second base station.

The first base station receives the uplink resource state scheduled by the second base station to the UE from the second base station or the UE, and the first base station determines the maximum uplink transmitting power distributed to the first base station by the UE according to the uplink resource state scheduled to the UE by the second base station. Or, the first base station receives the maximum uplink transmission power allocated to the first base station by the UE from the second base station or the UE, wherein the maximum uplink transmission power is determined by the second base station or the UE according to the uplink resource state scheduled to the UE by the second base station.

The uplink resource status may be semi-static scheduling configuration information of the uplink resource scheduled for the UE when the second base station establishes the voice service for the UE. The semi-static scheduling configuration information may include: an SPS configuration command, an SPS configuration delete command, an SPS activation indication, and an SPS deactivation indication. The uplink resource state information may also be an uplink resource state transmitted by the second base station through the MAC CE, the RRC message, or the uplink control information.

A power determining module 12, configured to configure uplink transmission power for the UE according to the maximum uplink transmission power.

After the power obtaining module 11 obtains the maximum uplink transmission power allocated by the UE, the power determining module 12 reasonably configures the uplink transmission power for the UE according to the maximum uplink transmission power allocated by the UE, and controls the uplink transmission power allocated to the UE not to exceed the maximum uplink transmission power of the UE, or appropriately reduces the uplink transmission power of the UE.

The first base station provided in this embodiment may be configured to execute the technical solution provided in the first embodiment of the method, and a specific implementation manner and a technical effect are similar, which are not described herein again.

The first base station provided in this embodiment allocates the transmission power to the UE according to the maximum transmission power allocated to the first base station by the UE, and since the maximum transmission power allocated to the first base station is allocated according to the uplink resource status information of the second base station, the power allocated to each base station by the UE can be coordinated, so that the first base station can accurately allocate the uplink transmission power to the UE, and the throughput of the UE is improved while the requirements of the transmission power of multiple base stations are met.

Fig. 13 is a schematic structural diagram of a second embodiment of a first base station provided in the present invention, in which the first base station is an auxiliary base station and the second base station is a main base station. As shown in fig. 13, the first base station provided in this embodiment includes:

a power obtaining module 21, configured to obtain a maximum uplink transmission power allocated to the first base station by the UE, where the maximum uplink transmission power is determined according to an uplink resource state scheduled to the UE by the second base station. And a power determining module 22, configured to configure uplink transmission power for the UE according to the maximum uplink transmission power.

In this embodiment, the power obtaining module 21 includes: an uplink resource state receiving unit 211 and an uplink transmission power determining unit 212.

The uplink resource status receiving unit 211 is configured to receive, from the second base station or the UE, an uplink resource status that is scheduled by the second base station to the UE. And the uplink resource state is semi-static scheduling configuration information of the uplink resource scheduled for the UE when the second base station establishes the voice service for the UE. The semi-static scheduling configuration information includes: an SPS configuration command, an SPS configuration delete command, an SPS activation indication, and an SPS deactivation indication.

An uplink transmission power determining unit 212, configured to determine, according to the uplink resource state that is received by the uplink resource state receiving unit 211 and is scheduled by the second base station to the UE, the maximum uplink transmission power that is allocated to the first base station by the UE.

In this embodiment, the power determining module 22 includes: a power offset determination unit 221 and a power determination unit 222. A power offset determining unit 221, configured to determine an offset of uplink transmit power according to an uplink resource state scheduled by the second base station to the UE. Power offset determination unit 221 is specifically configured to: and according to the uplink resource state scheduled to the UE by the second base station, when the uplink resource scheduled to the UE by the second base station at the current moment is identified to be lower than a set threshold value, determining the offset of the uplink transmitting power. Wherein the offset value is pre-configured. A power determining unit 222, configured to superimpose the offset with an initial maximum uplink transmission power allocated to the first base station by the UE, and determine the maximum uplink transmission power allocated to the first base station by the UE. According to the uplink resource state of the second base station, when the second base station has no data transmission or has less data transmission, part or all of the transmission power (i.e. power offset) of the second base station can be allocated to the first base station, and the transmission power of the first base station is increased.

The first base station further includes a power headroom determining module 23, configured to obtain a power headroom of the UE recalculated according to the maximum uplink transmission power when the uplink transmission power determined by the power determining module 22 changes with respect to the historical value, or the change value exceeds a preset threshold value.

In a possible implementation manner, the first base station provided in this embodiment further includes: the device comprises a preset power receiving module and a preset power configuration module.

The preset power receiving module is used for receiving preset power information sent by the second base station, and the preset power information at least comprises uplink transmitting power preset and configured to the UE by the second base station at the next moment; the preset power information includes: the maximum transmitting power of the UE, the maximum transmitting power distributed to the second base station by the UE, the uplink control information scheduling state of the UE, the maximum transmitting power distributed to each carrier wave of the second base station by the UE and the offset of the uplink transmitting power adopted by the second base station.

And the preset power configuration module is used for determining the uplink transmitting power configured to the UE by the first base station at the next moment according to the preset power information. Specifically, the preset power configuration module may appropriately increase or decrease the transmission power allocated to the first base station when allocating the uplink transmission power to the UE at the next time according to the preset power information received by the preset power receiving module and sent by the second base station and the uplink transmission power allocated to the first base station at the last time determined by the power determining module 22. By the method, the uplink transmitting power distributed to the UE by the first base station at the next moment can be adjusted in real time, so that the uplink transmitting power of the UE at each base station can be more accurately and reasonably distributed, and the uplink rate and the throughput of the UE are improved.

The technical solution provided in this embodiment can be used to implement the technical solutions provided in the first embodiment, the second embodiment, the fifth embodiment and the eleventh embodiment of the method, and the specific implementation and technical effects are similar, so that detailed description is omitted.

Fig. 14 is a schematic structural diagram of a third embodiment of a first base station, in this embodiment, the first base station is an auxiliary base station, and the second base station is a main base station, as shown in fig. 14, the first base station provided in this embodiment specifically includes, on the basis of the base stations shown in fig. 12 and fig. 13: an initial maximum uplink transmission power obtaining module 31 and a power allocating module 32.

An initial maximum uplink transmission power obtaining module 31, configured to obtain an initial maximum uplink transmission power allocated to the first base station by the UE, where the initial maximum uplink transmission power is determined according to a downlink path loss or an uplink path loss between each base station and the UE;

a power allocating module 32, configured to allocate uplink transmission power to the UE according to the initial maximum uplink transmission power.

The initial maximum uplink transmission power obtaining module 31 may obtain the initial maximum uplink transmission power allocated to the first base station by the UE in the following manner:

specifically, the initial maximum uplink transmission power obtaining module 31 is configured to: and receiving initial maximum uplink transmission power which is reported by the UE and allocated to the first base station by the UE, wherein the initial maximum uplink transmission power is allocated from the maximum uplink transmission power of the UE by the UE according to the downlink path loss ratio between each base station and the UE.

The initial maximum uplink transmission power obtaining module 31 is further configured to: and receiving initial maximum uplink transmission power distributed to the first base station by the UE sent by the second base station, wherein the initial maximum uplink transmission power is distributed from the maximum uplink transmission power of the UE by the second base station according to the downlink path loss ratio between each base station and the UE.

The initial maximum uplink transmission power obtaining module 31 is specifically configured to: and reporting the downlink path loss of each base station by the UE, and calculating and obtaining the initial maximum uplink transmitting power distributed to the first base station by the UE from the maximum uplink transmitting power of the UE according to the proportion of each downlink path loss.

The initial maximum uplink transmission power obtaining module 31 is specifically configured to: and acquiring uplink loss between each base station and the UE, which is sent by the second base station, and calculating and acquiring initial maximum uplink transmitting power distributed to the first base station by the UE from the maximum uplink transmitting power of the UE according to the proportion of the uplink loss.

The initial maximum uplink transmission power obtaining module 31 is further configured to: after obtaining the initial maximum uplink transmission power allocated to the first base station by the UE, adding a supplementary offset in the initial maximum uplink transmission power. The supplementary offset can be configured to the first base station by the second base station, when the first base station needs to transmit a large amount of data with the UE and the data transmission amount between the UE and the second base station is small, the maximum uplink transmission power allocated to the first base station by the UE can be increased by increasing the uplink transmission power of the first base station, so that the throughput of the UE can be increased, the utilization rate of the whole network can be improved, and the second base station cannot be interfered.

In this embodiment, the initial maximum uplink transmission power obtaining module 31 is specifically configured to obtain the initial maximum uplink transmission power allocated to the first base station by the UE when the UE initially accesses the first base station, or according to a set period, or when an uplink path loss or a downlink path loss changes, or when a path loss change value exceeds a set threshold value. After obtaining the initial maximum uplink transmission power allocated to the first base station by the UE, the power allocation module 32 allocates the uplink transmission power to the UE according to the initial maximum uplink transmission power. Then, the power obtaining module 33 is configured to obtain the maximum uplink transmission power allocated to the first base station by the UE according to the power, where the maximum uplink transmission power allocated to the first base station by the UE is determined according to the maximum uplink transmission power allocated to the first base station by the power allocating module 32 and the uplink resource state scheduled to the UE by the second base station, and the power determining module 34 is configured to configure the uplink transmission power for the UE according to the maximum uplink transmission power.

The first base station provided in this embodiment may further include: the device comprises a reference signal receiving module, an uplink path loss determining module and a path loss reporting module. The reference signal receiving module is used for receiving a sounding reference signal sent by the UE; an uplink path loss determining module, configured to determine an uplink path loss between the first base station and the UE according to the received power and the transmission power of the sounding reference signal; and the path loss reporting module is used for reporting the uplink path loss between the first base station and the UE to the second base station so that the second base station can forward the uplink path loss to other base stations. So that the first base station and others can determine the initial maximum uplink transmission power allocated to the first base station according to the uplink path loss between the first base station and the UE.

The first base station provided in this embodiment is configured to execute the flowchart of the third embodiment of the method, and the specific implementation manner and the technical effect are similar, so that details are not described again.

Fig. 15 is a schematic structural diagram of a fourth embodiment of a second base station, as shown in fig. 15, the second base station provided in this embodiment includes: an uplink resource status providing module 41 and an uplink resource scheduling module 42.

An uplink resource status providing module 41, configured to provide the uplink resource status scheduled by the second base station to the UE to the first base station, so that the first base station determines, according to the uplink resource status scheduled by the second base station to the UE, the maximum uplink transmission power allocated to the first base station by the UE.

The uplink resource status providing module 41 provides the uplink resource status to the first base station specifically by the following means:

the uplink resource status providing module 41 sends the uplink resource status scheduled by the second base station to the UE to the first base station; or sending the uplink resource state scheduled by the second base station to the UE to the first base station through the UE. The uplink resource status providing module 41 may also send the uplink resource status, which is scheduled by the second base station to the UE, to the UE through the MAC CE, the RRC message, or the uplink control information, so as to send the uplink resource status to the first base station through the UE.

The uplink resource status providing module 41 is specifically configured to: when voice service is established for the UE, semi-static scheduling of uplink resources is configured for the UE, and semi-static scheduling configuration information is sent to the first base station or sent to the UE so as to be sent to the first base station through the UE. The semi-static scheduling configuration information includes: an SPS configuration command, an SPS configuration delete command, an SPS activation indication, and an SPS deactivation indication.

And an uplink resource scheduling module 42, configured to schedule the uplink resource for the UE according to the uplink resource status.

In a possible implementation manner, in this embodiment, the first base station is a secondary base station, and the second base station is a primary base station. On the basis of the above embodiments, the present embodiment further includes: the device comprises a preset power configuration module and a preset power information sending module.

And the preset power configuration module is used for configuring preset power information, and the preset power information at least comprises uplink transmitting power preset and configured to the UE by the second base station at the next moment. Wherein the preset power information includes: the maximum transmitting power of the UE, the maximum transmitting power distributed to the second base station by the UE, the uplink control information scheduling state of the UE, the maximum transmitting power distributed to each carrier wave of the second base station by the UE and the offset of the uplink transmitting power adopted by the second base station.

And the preset power information sending module is used for sending the preset power information to the first base station so that the first base station determines the uplink transmitting power configured to the UE by the first base station at the next moment according to the preset power information.

The second base station provided in this embodiment may be configured to execute the solutions provided in the fourth and fifth embodiments of the method, and specific implementation manners and technical effects are similar and will not be described herein again.

Fig. 16 is a schematic structural diagram of a fifth embodiment of a second base station, as shown in fig. 16, the second base station provided in this embodiment includes:

an initial maximum uplink transmission power obtaining module 51, configured to obtain an initial maximum uplink transmission power allocated to the second base station by the UE, where the initial maximum uplink transmission power is determined according to a downlink path loss or an uplink path loss between each base station and the UE;

a power allocating module 52, configured to allocate uplink transmission power to the UE according to the initial maximum uplink transmission power.

Specifically, the initial maximum uplink transmission power obtaining module 51 obtains the initial maximum uplink transmission power allocated to the second base station by the following method:

in a first implementation manner, the initial maximum uplink transmission power obtaining module 51 receives an initial maximum uplink transmission power, which is reported by the UE and allocated to the second base station by the UE, where the initial maximum uplink transmission power is allocated from the maximum uplink transmission power of the UE by the UE according to a downlink path loss ratio between each base station and the UE. In this implementation, the initial maximum uplink transmit power is calculated by the UE and reported to the second base station.

In a second implementation manner, the initial maximum uplink transmission power obtaining module 51 receives the initial maximum uplink transmission power allocated to each base station by the UE reported by the UE; or receiving downlink path loss of each base station reported by the UE, and calculating and obtaining initial maximum uplink transmitting power distributed to each base station by the UE from the maximum uplink transmitting power of the UE according to the proportion of each downlink path loss; in this implementation, the initial maximum uplink transmission power is calculated by the second base station according to the downlink path loss reported by the UE.

In this embodiment, the second base station further includes: an initial maximum uplink transmission power sending module 53, configured to send each initial maximum uplink transmission power to a corresponding base station.

When the initial maximum uplink transmission power allocated to each base station by the UE is calculated by the second base station, the initial maximum uplink transmission power obtaining module 51 further includes: an uplink loss acquisition unit 511 and an initial maximum uplink transmission power allocation unit 512.

An uplink loss obtaining unit 511, configured to obtain uplink loss between the base station and the UE sent by each base station; in this embodiment, after obtaining the uplink loss between the base station and the UE sent by each base station, the second base station further needs to calculate the uplink loss between itself and the UE base station, and then the initial maximum uplink transmission power allocation unit 512 calculates and obtains the initial maximum uplink transmission power allocated to each base station by the UE from the maximum uplink transmission power of the UE according to the ratio of the uplink loss. Finally, each initial maximum uplink transmission power is sent to the corresponding base station through the initial maximum uplink transmission power sending module 53. Therefore, the base station provided in this embodiment further includes: a reference signal receiving module 54 and an uplink loss determining module 55.

The reference signal receiving module 54 is configured to receive a sounding reference signal sent by the UE; and an uplink loss determining module 55, configured to determine an uplink loss between the second base station and the UE according to the received power and the transmission power of the sounding reference signal. And provides the determined uplink loss to the initial maximum uplink transmit power acquisition module 51.

The initial maximum uplink transmission power obtaining module 51 is further configured to: and after the initial maximum uplink transmission power distributed to each base station by the UE is obtained, adding a supplementary offset into the initial maximum uplink transmission power distributed to the secondary base station. And the initial maximum uplink transmission power acquisition module acquires the initial maximum uplink transmission power distributed to the second base station by the UE according to a set period, or when the uplink path loss or the downlink path loss changes, or when the path loss change value exceeds a set threshold value.

The second base station provided in this embodiment may be configured to execute the technical solutions of the fourth to sixth embodiments and the ninth to eleventh embodiments, and specific implementation manners and technical effects are similar, and thus detailed description is omitted.

Fig. 17 is a schematic structural diagram of a sixth embodiment of a UE provided in the present invention, and as shown in fig. 17, the UE provided in this embodiment includes: uplink resource state acquisition module 61 and uplink resource state reporting module 62

An uplink resource status obtaining module 61, configured to obtain an uplink resource status that is scheduled by the second base station to the UE;

the uplink resource status obtaining module 61 is specifically configured to: receiving an uplink resource state sent by the second base station through the MAC CE, the RRC message or the uplink control information; or receiving an SPS configuration command, an SPS configuration deleting command, an SPS activation instruction and an SPS deactivation instruction which are sent by the second base station as an uplink resource state; or identifying whether the second base station does not schedule the uplink resource within the set time, and determining the uplink resource state according to the identification result.

An uplink resource status reporting module 62, configured to report, to the first base station, an uplink resource status that is scheduled by the second base station to the UE, so that the first base station determines, according to the uplink resource status, a maximum uplink transmission power that is allocated to the first base station by the UE; or determining the maximum uplink transmitting power distributed to the first base station by the UE according to the uplink resource state scheduled to the UE by the second base station, and reporting to the first base station.

In the UE provided in this embodiment, the uplink resource status scheduled by the second base station to the UE is obtained and reported to the first base station, so that the first base station schedules the maximum uplink transmission power to the UE according to the uplink resource status scheduled by the second base station, or the UE determines the maximum uplink transmission power allocated to the first base station according to the uplink resource status scheduled by the second base station to the UE and reports to the first base station. Therefore, the maximum uplink transmitting power distributed to the first base station is ensured to be determined according to the resources among the base stations, the maximum uplink transmitting power can be reasonably distributed to the base stations, and the throughput of the UE and the utilization rate of the network are improved.

Fig. 18 is a schematic structural diagram of a seventh embodiment of a UE provided in the present invention, where in this embodiment, a first base station is an auxiliary base station, and a second base station is a main base station. As shown in fig. 18, the UE provided in this embodiment includes: an uplink resource status acquiring module 71 and an uplink resource status reporting module 72.

An uplink resource status obtaining module 71, configured to obtain an uplink resource status that is scheduled by the second base station to the UE;

an uplink resource status reporting module 72, configured to report, to the first base station, an uplink resource status that is scheduled by the second base station to the UE, so that the first base station determines, according to the uplink resource status, a maximum uplink transmission power that is allocated to the first base station by the UE; or determining the maximum uplink transmitting power distributed to the first base station by the UE according to the uplink resource state scheduled to the UE by the second base station, and reporting to the first base station.

In this embodiment, the uplink resource status reporting module 72 includes: a power offset determination unit 721 and a transmission power determination unit 722.

A power offset determining unit 721, configured to determine an offset of uplink transmission power according to an uplink resource state scheduled by the second base station to the UE; the offset value is pre-configured or issued by the second base station through network signaling. A transmission power determining unit 722, configured to superimpose the offset with the initial maximum uplink transmission power allocated to the first base station by the UE, and determine the maximum uplink transmission power allocated to the first base station by the UE.

In this embodiment, the UE further includes: the device comprises an uplink path loss reporting module and an initial maximum uplink transmitting power determining module.

And the uplink path loss reporting module is used for reporting the downlink path loss between the UE and the base station to the base station so that the base station determines the initial maximum uplink transmitting power distributed by the UE at the base station according to the downlink path loss. And the initial maximum uplink transmitting power determining module is used for determining the initial maximum uplink transmitting power distributed to the base station by the UE according to the downlink path loss between the UE and the base station and reporting the initial maximum uplink transmitting power to the base station.

Specifically, the uplink loss reporting module includes: a downlink path loss measuring unit and a downlink path loss reporting unit. And the downlink path loss measuring unit is used for measuring the downlink path loss between the base station and each base station. And the downlink path loss reporting unit is used for reporting the downlink path loss between the UE and each base station to the second base station.

The initial maximum uplink transmission power determining module comprises: a downlink path loss measuring unit, an initial maximum uplink transmitting power distributing unit and an initial maximum uplink transmitting power reporting unit.

A downlink path loss measuring unit, configured to measure downlink path loss between each base station and each base station; the downlink path loss measurement unit is specifically configured to: and receiving the sounding reference signals sent by each base station, and determining the downlink path loss between each base station and the sounding reference signals according to the receiving power and the sending power of the sounding reference signals.

The initial maximum uplink transmitting power distribution unit is used for calculating and obtaining initial maximum uplink transmitting power distributed to each base station from the maximum uplink transmitting power of the UE; the initial maximum uplink transmission power allocation unit is further configured to add a supplemental offset to the maximum uplink transmission power allocated to the first base station.

And the initial maximum uplink transmission power reporting unit is used for reporting the determined initial maximum uplink transmission power to each base station or reporting the determined initial maximum uplink transmission power to the second base station so as to forward the determined initial maximum uplink transmission power to each base station through the second base station.

And the initial maximum uplink transmission power determining module acquires the initial maximum uplink transmission power distributed to each base station by the UE according to a set period, or when the uplink path loss or the downlink path loss changes, or when the path loss change value exceeds a set threshold value.

The UE provided in this embodiment may be used to execute the technical solutions provided in the seventh to ninth embodiments of the method, and specific implementation and technical effects are similar, so that details are not described again.

Fig. 19 is a schematic structural diagram of an eighth embodiment of the first base station provided in the present invention. As shown in fig. 19, the first base station 800 provided in the present embodiment includes a processor 81 and a memory 82. The first base station 800 may further comprise a transmitter 83, a receiver 84. The memory 82, the transmitter 83 and the receiver 84 are connected to the processor 81 via a bus, which may be one or more physical lines, and when multiple physical lines, may be classified as an address bus, a data bus, a control bus, etc. Wherein the memory 82 stores execution instructions, when the first base station 800 operates, the processor 81 communicates with the memory 82, and the processor 81 calls the execution instructions in the memory 82 to perform the following operations:

the receiver 84 obtains the maximum uplink transmission power allocated to the first base station by the UE, wherein the maximum uplink transmission power is determined according to the uplink resource status scheduled to the UE by the second base station;

the processor 81 configures uplink transmission power for the UE according to the maximum uplink transmission power.

In a possible implementation manner of this embodiment, the first base station is a secondary base station, and the second base station is a primary base station.

The receiver 84 is specifically configured to receive, from the second base station or the UE, an uplink resource state scheduled by the second base station to the UE; then, the processor 81 determines the maximum uplink transmission power allocated to the first base station by the UE according to the uplink resource status scheduled to the UE by the second base station. Specifically, the processor 81 determines the offset of the uplink transmission power according to the uplink resource status scheduled to the UE by the second base station; then, the offset is superposed with the initial maximum uplink transmission power allocated to the first base station by the UE, and the maximum uplink transmission power allocated to the first base station by the UE is determined. The processor 81 determines the offset of the uplink transmission power when recognizing that the uplink resource scheduled to the UE by the second base station at the current time is lower than the set threshold value according to the uplink resource status scheduled to the UE by the second base station. The value of the offset is preconfigured.

The receiver 84 is further configured to receive, from the second base station or the UE, the maximum uplink transmission power allocated to the first base station by the UE, where the maximum uplink transmission power is determined by the second base station or the UE according to the uplink resource status scheduled to the UE by the second base station.

The uplink resource state is semi-static scheduling configuration information of uplink resources scheduled for the UE when the second base station establishes the voice service for the UE. The semi-static scheduling configuration information includes: a semi-persistent scheduling, SPS, configuration delete, SPS activation, and SPS deactivation command.

The processor 81 is further configured to, after allocating the uplink transmission power to the UE according to the maximum uplink transmission power, obtain a power headroom of the UE recalculated according to the maximum uplink transmission power when the determined uplink transmission power changes relative to the historical value or the change value exceeds a preset threshold value.

The receiver 84 is further configured to receive preset power information sent by the second base station, where the preset power information at least includes uplink transmission power preset by the second base station to the UE at the next time; the processor 81 is configured to determine, according to the preset power information, an uplink transmission power configured to the UE by the first base station at the next time. The preset power information includes: the maximum transmitting power of the UE, the maximum transmitting power distributed to the second base station by the UE, the uplink control information scheduling state of the UE, the maximum transmitting power distributed to each carrier wave of the second base station by the UE and the offset of the uplink transmitting power adopted by the second base station.

In this embodiment, the receiver 84 is further configured to obtain an initial maximum uplink transmission power allocated to the first base station by the UE, where the initial maximum uplink transmission power is determined according to a downlink loss or an uplink loss between each base station and the UE. The processor 81 is configured to allocate uplink transmit power to the UE according to the initial maximum uplink transmit power.

The receiver 84 is particularly used for: and receiving initial maximum uplink transmission power which is reported by the UE and allocated to the first base station by the UE, wherein the initial maximum uplink transmission power is allocated from the maximum uplink transmission power of the UE by the UE according to the downlink path loss ratio between each base station and the UE. Or, the receiver 84 receives the initial maximum uplink transmission power allocated to the first base station by the UE sent by the second base station, where the initial maximum uplink transmission power is allocated from the maximum uplink transmission power of the UE by the second base station according to the downlink path loss ratio between each base station and the UE.

In a possible implementation manner, the receiver 84 receives downlink path loss of each base station reported by the UE, and then the processor 81 calculates and obtains the initial maximum uplink transmission power allocated to the first base station by the UE from the maximum uplink transmission power of the UE according to the ratio of the downlink path loss.

In another possible implementation manner, the receiver 84 is configured to obtain uplink losses between the base stations and the UE sent by the second base station, and the processor 81 calculates, according to a ratio of the uplink losses, an initial maximum uplink transmission power allocated to the first base station by the UE from the maximum uplink transmission power of the UE. Alternatively, the receiver 84 may also receive a sounding reference signal sent by the UE, and then the processor 81 determines the uplink loss between the first base station and the UE according to the received power and the sent power of the sounding reference signal; and reports the uplink loss between the first base station and the UE to the second base station through the transmitter 83 so that the second base station forwards to other base stations.

Processor 81 is further configured to increase a supplemental offset in the initial maximum uplink transmit power after obtaining the initial maximum uplink transmit power allocated to the first base station by the UE. In this embodiment, the receiver 84 obtains the initial maximum uplink transmission power allocated to the first base station by the UE according to a set period, or when the uplink loss or the downlink loss changes, or when the change value of the path loss exceeds a set threshold value.

Fig. 20 is a schematic structural diagram of a ninth embodiment of a second base station provided in the present invention, and as shown in fig. 20, the second base station 900 provided in this embodiment includes a processor 91 and a memory 92. The second base station 900 may further comprise a transmitter 93, a receiver 94. The memory 92, transmitter 93 and receiver 94 are connected to the processor 91 by a bus. Wherein the memory 92 stores execution instructions, when the second base station 900 operates, the processor 91 communicates with the memory 92, and the processor 91 calls the execution instructions in the memory 82 to perform the following operations:

the transmitter 93 is configured to provide the uplink resource status scheduled by the first base station to the UE to the first base station, so that the first base station determines the maximum uplink transmission power allocated to the first base station by the UE according to the uplink resource status scheduled by the second base station to the UE.

The processor 91 is configured to schedule uplink resources for the UE according to the uplink resource status.

The transmitter 93 is specifically configured to: sending the uplink resource state scheduled by the second base station to the UE to the first base station; or sending the uplink resource state scheduled by the second base station to the UE to the first base station through the UE. Specifically, the transmitter 93 may transmit the uplink resource status scheduled by the second base station to the UE through the MAC CE, the RRC message, or the uplink control information to the UE for transmission to the first base station through the UE.

Optionally, when a voice service is established for the UE, the processor 91 configures semi-persistent scheduling of uplink resources for the UE; the semi-persistent scheduling configuration information is then sent by the transmitter 93 to the first base station, or to the UE, for transmission by the UE to the first base station. The semi-static scheduling configuration information includes: an SPS configuration command, an SPS configuration delete command, an SPS activation indication, and an SPS deactivation indication.

The processor 91 is further configured to configure preset power information for the second base station, where the preset power information at least includes uplink transmission power preset by the second base station to the UE at the next time; the transmitter 93 sends preset power information to the first base station, so that the first base station determines, according to the preset power information, uplink transmission power configured to the UE by the first base station at the next time. The preset power information includes: the maximum transmitting power of the UE, the maximum transmitting power distributed to the second base station by the UE, the uplink control information scheduling state of the UE, the maximum transmitting power distributed to each carrier wave of the second base station by the UE and the offset of the uplink transmitting power adopted by the second base station.

The receiver 94 is configured to obtain an initial maximum uplink transmission power allocated by the UE to the second base station, where the initial maximum uplink transmission power is determined according to a downlink path loss or an uplink path loss between each base station and the UE; the processor 91 allocates uplink transmit power to the UE according to the initial maximum uplink transmit power.

Specifically, the receiver 94 is configured to receive an initial maximum uplink transmission power, which is allocated to the second base station by the UE, reported by the UE, where the initial maximum uplink transmission power is allocated from the maximum uplink transmission power of the UE by the UE according to a downlink path loss ratio between each base station and the UE. Or, the receiver 94 receives the initial maximum uplink transmission power allocated to each base station by the UE, which is reported by the UE. Of course, the receiver 94 may also receive the downlink path loss of each base station reported by the UE, and then the processor 91 calculates and obtains the initial maximum uplink transmission power allocated to each base station by the UE from the maximum uplink transmission power of the UE according to the ratio of each downlink path loss, and sends each initial maximum uplink transmission power to the corresponding base station through the transmitter 93.

In one possible implementation of the present invention, the receiver 94 is configured to obtain uplink loss between the base station and the UE transmitted by each base station. The processor 91 calculates and obtains the initial maximum uplink transmission power allocated to each base station by the UE from the maximum uplink transmission power of the UE according to the ratio of the uplink loss. The transmitter 93 transmits each initial maximum uplink transmission power to the corresponding base station.

The receiver 94 is further configured to receive the sounding reference signal transmitted by the UE, and then the processor 91 determines the uplink loss between the second base station and the UE according to the received power and the transmitted power of the sounding reference signal.

The processor 91 is further configured to add a supplemental offset in the initial maximum uplink transmit power allocated to the secondary base station.

In this embodiment, the receiver 94 obtains the initial maximum uplink transmission power allocated to the second base station by the UE according to a set period, or when the uplink loss or the downlink loss changes, or when the change value of the path loss exceeds a set threshold value.

Fig. 21 is a schematic structural diagram of a user equipment UE according to a tenth embodiment of the present invention. As shown in fig. 21, the UE1000 provided in this embodiment includes a processor 110 and a memory 120. The first base station UE1000 may further include a transmitter 130 and a receiver 140. The memory 120, the transmitter 130 and the receiver 140 are connected to the processor 110 through a bus. Wherein the memory 120 stores execution instructions, when the UE1000 runs, the processor 110 communicates with the memory 120, and the processor 110 calls the execution instructions in the memory 120 to perform the following operations:

the receiver 140 is configured to obtain an uplink resource status scheduled by the second base station to the UE.

The transmitter 130 reports an uplink resource state, which is scheduled by the second base station to the UE, to the first base station, so that the first base station determines the maximum uplink transmission power allocated to the first base station by the UE according to the uplink resource state; or the processor 110 determines the maximum uplink transmission power allocated to the first base station by the UE according to the uplink resource status scheduled to the UE by the second base station, and reports the maximum uplink transmission power to the first base station through the transmitter 130.

In this embodiment, the first base station is a secondary base station, and the second base station is a primary base station.

The processor 110 is specifically configured to determine an offset of uplink transmission power according to an uplink resource state scheduled by the second base station to the UE, and superimpose the offset and an initial maximum uplink transmission power allocated to the first base station by the UE to determine a maximum uplink transmission power allocated to the first base station by the UE. The offset value is pre-configured or issued by the second base station through network signaling.

The receiver 140 is further configured to receive an uplink resource status sent by the second base station through the MAC CE, the RRC message, or the uplink control information, or receive an SPS configuration command, an SPS configuration deletion command, an SPS activation indication, and an SPS deactivation indication sent by the second base station, and the processor 110 takes the SPS configuration command, the SPS configuration deletion command, the SPS activation indication, and the SPS deactivation indication as the uplink resource status. Or, the processor 110 identifies whether the second base station does not schedule the uplink resource within a set time, and determines the uplink resource status according to the identification result.

The transmitter 130 is further configured to report a downlink path loss between the UE and the base station to the base station, so that the base station determines an initial maximum uplink transmission power allocated by the UE at the base station according to the downlink path loss.

The processor 110 determines the initial maximum uplink transmission power allocated to the base station by the UE according to the downlink path loss between each base station and the base station, and reports the initial maximum uplink transmission power to the base station through the transmitter 130. The processor 110 is further configured to measure downlink path loss between the UE and each base station, and report the downlink path loss between the UE and each base station to the second base station through the transmitter 130.

The processor 110 is further specifically configured to measure a downlink path loss between the UE and each base station, and then calculate and obtain an initial maximum uplink transmission power allocated to each base station from the maximum uplink transmission power of the UE according to a ratio of the downlink path loss between the UE and each base station. And reports the determined initial maximum uplink transmission power to each base station or to the second base station through the transmitter 130, so as to be forwarded to each base station through the second base station.

Specifically, the downlink path loss between each base station is measured in the following manner, first, the receiver 140 receives the sounding reference signal transmitted by each base station, and then the processor 110 determines the downlink path loss between each base station according to the received power and the transmitted power of the sounding reference signal.

In this embodiment, after the processor 110 calculates and obtains the initial maximum uplink transmission power allocated to each base station from the maximum uplink transmission power of the UE according to the ratio of the downlink path loss between the UE and each base station, the processor is further configured to increase a supplemental offset in the maximum uplink transmission power allocated to the first base station.

The receiver 140 obtains the initial maximum uplink transmission power allocated to each base station by the UE according to a set period, or when the uplink loss or the downlink loss changes, or when the change value of the path loss exceeds a set threshold value.

Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An uplink transmission power control method, comprising:

a first base station acquires the maximum uplink transmission power of User Equipment (UE) at the first base station, wherein the maximum uplink transmission power is determined according to the uplink resource state configured for the UE by a second base station;

2. The method of claim 1, wherein obtaining the maximum uplink transmission power of the UE at the first base station by the first base station comprises:

the first base station receiving the uplink resource status from the second base station or the UE;

and the first base station determines the maximum uplink transmitting power according to the uplink resource state.

3. The method of claim 1, wherein obtaining the maximum uplink transmission power of the UE at the first base station by the first base station comprises:

the first base station receives the maximum uplink transmission power from the second base station, wherein the maximum uplink transmission power is determined by the second base station according to the uplink resource state; or,

and the first base station receives the maximum uplink transmission power from the UE, wherein the maximum uplink transmission power is determined by the UE according to the uplink resource state.

4. The method of claim 2, wherein the uplink resource status indicates a time when the second base station does not schedule uplink data for the UE.

5. The method of claim 3, wherein the uplink resource status indicates a time when the second base station does not schedule uplink data for the UE.

6. The method of any of claims 1-5, further comprising:

the first base station receives power information sent by the second base station, wherein the power information comprises uplink transmission power of the UE on the second base station configured by the second base station or maximum transmission power of the UE on the second base station;

and the first base station determines the uplink transmitting power configured by the first base station to the UE on the first base station according to the power information.

7. The method of claim 1, wherein:

8. An uplink transmission power control method, comprising:

the second base station sends the maximum uplink transmitting power of the UE on the first base station to the first base station, wherein the maximum uplink transmitting power is determined according to the uplink resource state configured for the UE by the second base station.

9. The method of claim 8, further comprising:

the second base station sends the uplink resource state to the first base station; or

The second base station sends the uplink resource status to the first base station via the UE.

10. The method of claim 8, wherein the uplink resource status indicates a time when the second base station does not schedule uplink data for the UE.

11. The method of claim 9, wherein the uplink resource status indicates a time when the second base station does not schedule uplink data for the UE.

12. The method according to any one of claims 8-11, further comprising:

and the second base station sends power information to the first base station, wherein the power information comprises uplink transmission power of the UE on the second base station or the maximum transmission power of the UE on the second base station, which is configured by the second base station.

13. The method of claim 8, wherein:

14. An uplink transmission power control method, comprising:

and the second base station sends an uplink resource state configured for User Equipment (UE) to the first base station, wherein the uplink resource state is used for indicating the first base station to determine the maximum uplink transmitting power of the UE at the first base station according to the uplink resource state.

15. The method of claim 14, wherein the second base station sends the uplink resource status configured for the UE to the first base station, and wherein the uplink resource status comprises:

16. The method of claim 14, wherein:

the uplink resource status indicates a time when the second base station does not schedule the uplink data of the UE.

17. The method of claim 15, wherein:

18. The method of any of claims 14-17, further comprising:

19. The method according to any one of claims 14, wherein:

20. An uplink transmission power control method, comprising:

user Equipment (UE) receives uplink transmission power configured by a first base station, wherein the uplink transmission power is configured by the first base station according to the maximum uplink transmission power of the UE at the first base station, and the maximum uplink transmission power is determined according to an uplink resource state configured for the UE by a second base station.

21. The method of claim 20, wherein before the UE receives the uplink transmit power configured by the first base station, the method further comprises:

and the UE sends the uplink resource state to the first base station, wherein the uplink resource state is used for indicating the first base station to determine the maximum uplink transmitting power according to the uplink resource state.

22. The method of claim 20, wherein before the UE receives the uplink transmit power configured by the first base station, the method further comprises:

and the UE sends the maximum uplink transmission power to the first base station, wherein the maximum uplink transmission power is determined by the second base station or the UE according to the uplink resource state.

23. The method according to any one of claims 20-22, wherein:

24. The method of claim 20, further comprising:

and the UE sends the UE capability information of the UE to the second base station.

25. The method of claim 20, wherein:

26. An uplink transmission power control method, comprising:

27. The method of claim 26, wherein before the UE receives the uplink transmit power configured by the first base station, the method further comprises:

28. The method of claim 26 or 27, wherein:

29. The method of claim 28, wherein:

30. A first base station, comprising:

a power obtaining module, configured to obtain a maximum uplink transmission power of a user equipment UE at the first base station, where the maximum uplink transmission power is determined according to an uplink resource state configured for the UE by a second base station;

31. The base station of claim 30,

the power obtaining module is specifically configured to receive the uplink resource status from the second base station or the UE; and determining the maximum uplink transmitting power according to the uplink resource state.

32. The base station of claim 30,

the power obtaining module is specifically configured to receive the maximum uplink transmission power from the second base station, where the maximum uplink transmission power is determined by the second base station according to the uplink resource state; or, receiving the maximum uplink transmission power from the UE, where the maximum uplink transmission power is determined by the UE according to the uplink resource status.

33. The base station of claim 31, wherein the uplink resource status indicates a time when the second base station does not schedule uplink data for the UE.

34. The base station of claim 32, wherein the uplink resource status indicates a time when the second base station does not schedule uplink data for the UE.

35. The base station according to any of claims 30-34,

the power obtaining module is further configured to receive power information sent by the second base station, where the power information includes uplink transmission power of the UE on the second base station configured by the second base station or maximum transmission power of the UE on the second base station;

the power determining module is further configured to determine, according to the power information, uplink transmission power configured by the first base station to the UE on the first base station.

36. The base station according to claim 33 or 34, characterized by:

37. A second base station, comprising:

a processor, a memory, and a transmitter; wherein,

the memory stores instructions, and the processor invokes instructions in the memory to trigger:

the transmitter transmits the maximum uplink transmission power of User Equipment (UE) on a first base station to the first base station, wherein the maximum uplink transmission power is determined according to the uplink resource state configured for the UE by a second base station.

38. The base station of claim 37, wherein the processor invokes instructions in memory further configured to trigger the transmitter to send the uplink resource status to the first base station; or

Transmitting, via the UE, the uplink resource status to the first base station.

39. The base station of claim 37, wherein the uplink resource status indicates a time when the second base station does not schedule uplink data for the UE.

40. The base station of claim 38, wherein the uplink resource status indicates a time when the second base station does not schedule uplink data for the UE.

41. The base station of any of claims 37-40, wherein the processor invokes instructions in memory further configured to trigger the transmitter to send power information to the first base station, the power information comprising uplink transmit power of the second base station configured to the UE on the second base station or maximum transmit power of the UE on the second base station.

42. The base station of claim 37, wherein:

43. A second base station, comprising:

a processor, a memory, and a transmitter; wherein,

the transmitter sends an uplink resource state configured for User Equipment (UE) to a first base station, wherein the uplink resource state is used for indicating the first base station to determine the maximum uplink transmission power of the UE at the first base station according to the uplink resource state.

44. The base station of claim 43, wherein the processor invokes instructions in memory further configured to trigger the transmitter to send the uplink resource status to the first base station via the UE.

45. The base station of claim 43, wherein:

46. The base station of claim 44, wherein:

47. The base station of any of claims 43 to 46, wherein the processor invokes instructions in memory further configured to trigger the transmitter to send power information to the first base station, wherein the power information comprises uplink transmit power of the second base station configured to the UE at the second base station or maximum transmit power of the UE at the second base station.

48. The base station of claim 43, wherein:

49. A User Equipment (UE), comprising:

a processor, a memory, and a receiver; wherein,

the receiver receives uplink transmission power configured by a first base station, wherein the uplink transmission power is configured by the first base station according to the maximum uplink transmission power of the UE at the first base station, and the maximum uplink transmission power is determined according to an uplink resource state configured for the UE by a second base station.

50. The UE of claim 49, further comprising a transmitter:

the processor calls an instruction in the memory, and is further configured to trigger the transmitter to send the uplink resource status to the first base station, where the uplink resource status is used to instruct the first base station to determine the maximum uplink transmission power according to the uplink resource status.

51. The UE of claim 49, further comprising a transmitter:

the processor calls an instruction in the memory, and is further configured to trigger the transmitter to send the maximum uplink transmission power to the first base station, where the maximum uplink transmission power is determined by the second base station or the UE according to the uplink resource status.

52. The UE of claim 49, wherein:

53. The UE of claim 50, wherein:

54. The UE of claim 51, wherein:

55. The UE of any one of claims 49-54, wherein the processor invokes instructions in memory further configured to trigger the transmitter to send UE capability information of the UE to the second base station.

56. The UE of claim 49, wherein:

57. A user equipment, UE, comprising a processor, a memory and a receiver; wherein,

58. The UE of claim 57, further comprising a transmitter:

the memory stores instructions, and the processor invokes instructions in the memory and is further configured to trigger the transmitter to send the uplink resource status to the first base station, where the uplink resource status is used to instruct the first base station to determine the maximum uplink transmit power according to the uplink resource status.

59. The UE of claim 57 or 58, wherein:

60. The UE of claim 59, wherein:

61. An uplink transmit power control apparatus comprising a processor and a memory, the memory storing instructions, execution of which by the processor causes the apparatus to perform the method of any of claims 1 to 7.

62. An uplink transmit power control apparatus comprising a processor and a memory, the memory storing instructions, execution of which by the processor causes the apparatus to perform the method of any of claims 8 to 19.

63. An uplink transmit power control apparatus comprising a processor and a memory, the memory storing instructions, execution of which by the processor causes the apparatus to perform the method of any of claims 20 to 29.

64. A computer readable storage medium having stored thereon instructions which, when executed on a computer, cause the computer to perform the method of any one of claims 1 to 29.