CN107295666B

CN107295666B - Power distribution method and device

Info

Publication number: CN107295666B
Application number: CN201610206335.8A
Authority: CN
Inventors: 莫林梅; 赵亚军; 徐汉青
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2016-04-05
Filing date: 2016-04-05
Publication date: 2021-10-15
Anticipated expiration: 2036-04-05
Also published as: CN107295666A

Abstract

The invention discloses a power distribution method, which comprises the following steps: configuring guaranteed power expressed by percentage of maximum available power for a main base station MeNB and an auxiliary base station SeNB, and respectively allocating power for a main cell set MCG and an auxiliary cell set SCG according to the guaranteed power; when the uplink control information UCI types are the same, configuring the cell priority of SCG not lower than the cell priority of MCG; and distributing the residual power for the MCG and the SCG respectively based on the cell priority, wherein the residual power is the power left after the power distribution is ensured. The invention also discloses a power distribution device, which can carry out power distribution by combining the channel occupation situation on the unauthorized carrier, so that the power distribution in the LAA system can adapt to the change of the channel occupation situation on the unauthorized carrier, thereby effectively utilizing the available power resources and ensuring the system performance.

Description

Power distribution method and device

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a power allocation method and apparatus.

Background

The Long Term Evolution (LTE)/Long Term Evolution Advanced (LTE-a) system is a fourth Generation mobile communication standard established by The 3rd Generation Partnership Project (3 GPP) organization. In order to adapt to more application scenarios and coverage requirements, LTE introduces heterogeneous networking and small cell technologies. In the initial stage of research on small cell enhancement technology, cooperative work is realized between a macro base station and a small cell according to an ideal backhaul (backhaul) assumption and mainly based on a Carrier Aggregation (CA) mode. Based on CA technology, a UE may have multiple serving cells, a Cell providing Radio Resource Control (RRC) communication is called a Primary Cell (PCell), and a Cell providing no RRC communication and only additional Radio resources is called a Secondary Cell (SCell).

In order to enable the small cell enhancement technology to be applied to the non-ideal backhaul scenario, LTE further introduces a dual-link networking scheme. Dual-linking allows a given terminal in RRC-linked state to use the radio resources of at least two different network nodes, which are called primary base station (MeNB, Master eNodeB) and secondary base station (SeNB, Slave eNodeB), respectively. The set of cells on the MeNB is called the Master Cell Group (MCG), which includes a PCell and scells aggregated together by CA. The set of cells on the SeNB is called a Secondary Cell Group (SCG), which includes a pSCell and an SCell aggregated together by CA.

LTE mainly works on licensed spectrum at present, and with the continuous growth of data services, licensed spectrum resources are more and more crowded and tense. Therefore, with the assistance of the Licensed carrier, the LTE/LTE-a system is extended to the unlicensed spectrum resource by using methods such as carrier aggregation and dual-link, and this technology is called Licensed Assisted Access (Licensed Assisted Access).

In the unlicensed spectrum, in addition to the LTE system, there are other WiFi systems, Radar systems, and the like, and for fairness, each system needs to acquire resources in a competitive manner, and needs to release resources after occupying a period of time. That is, there is uncertainty as to whether each cell on the unlicensed carrier can obtain the channel use right and whether data/service transmission is performed in the unlicensed carrier cell, and if power allocation is still performed according to the power allocation method on the licensed carrier, there may be a case where power usage is insufficient.

On the authorized carrier, the maximum uplink transmit power of the UE is limited by the linear operating range of the radio frequency module and regulatory requirements on the authorized spectrum, and meanwhile, since the UE uses the same radio frequency link for the MeNB and the SeNB, the maximum uplink transmit power of the UE needs to be shared and allocated between the MeNB and the SeNB, and the allocation principle is to be allocated according to the eNB type and the channel type.

In a Dual Connectivity-based licensed assisted access (LAA-DC) scenario, the MeNB operates in a licensed frequency band, the SeNB operates in an unlicensed frequency band, and the MeNB and the SeNB may use one broadband radio frequency link or different radio frequency links, so that power control in the licensed frequency band may not meet requirements on the unlicensed frequency spectrum.

Therefore, it is desirable to provide a power allocation apparatus and method for an LTE system, so that the power allocation for the LTE system can adapt to the change of the channel occupancy on the unlicensed carrier.

Disclosure of Invention

In order to solve the above technical problem, the present invention provides a power allocation method and apparatus, so that the power allocation of an LTE system can adapt to the change of the channel occupancy on an unlicensed carrier.

In order to achieve the object of the present invention, the present invention provides a power allocation method, including:

configuring guaranteed power expressed by percentage of maximum available power for a main base station MeNB and an auxiliary base station SeNB, and respectively allocating power for a main cell set MCG and an auxiliary cell set SCG according to the guaranteed power;

when the uplink control information UCI types are the same, configuring the cell priority of SCG not lower than the cell priority of MCG; and respectively distributing residual power for the MCG and the SCG based on the cell priority, wherein the residual power is the power left after the power distribution is ensured.

Wherein configuring the guaranteed power for the MeNB and the SeNB expressed as a percentage of the maximum available power comprises:

determining the MCG guaranteed power distribution percentage of the MeNB according to the MCG reference power distribution parameters configured for the MeNB; the guaranteed power allocated for the MeNB is a product of the maximum available power and the MCG guaranteed power allocation percentage;

determining the SCG guaranteed power distribution percentage of the SeNB according to the SCG reference power distribution parameters configured for the SeNB; the guaranteed power allocated for the SeNB is a product of the maximum available power and the SCG guaranteed power allocation percentage.

And allocating power of an unlicensed carrier and power of a licensed carrier to the MCG and the SCG respectively according to the guaranteed power.

Configuring guaranteed power expressed by percentage of maximum available power for the MeNB and the SeNB on the unlicensed carrier, and respectively allocating the power of the unlicensed carrier to the MCG and the SCG according to the guaranteed power; and/or the presence of a gas in the gas,

and configuring guaranteed power expressed by percentage of maximum available power on the authorized carriers by the MeNB and the SeNB, and respectively allocating the power of the authorized carriers to the MCG and the SCG according to the guaranteed power.

When the number of the cells successfully occupying the channel in the SCG is increased, the percentage of SCG guaranteed power distribution is increased, and the percentage of MCG guaranteed power distribution is reduced; and when the number of the cells successfully occupying the channel in the SCG is reduced, improving the percentage of the MCG guaranteed power distribution and reducing the percentage of the SCG guaranteed power distribution.

When the number of the cells in which the SCG successfully occupies the channel use right is increased, the SCG guaranteed power distribution percentage is increased, and the MCG guaranteed power distribution percentage is reduced, wherein the method comprises the following steps:

when the number of the cells successfully occupying the channel use right in the SCG is increased to N + N, the value of the SCG guaranteed power distribution percentage is determined according to the sum of the SCG reference power distribution parameter and N x p; the value of the MCG guaranteed power distribution percentage is determined according to the difference between the MCG reference power distribution parameter and n × p;

wherein p represents a coefficient of variation, and the value is 1,2 or 3; n represents that the number of the cells successfully preempted to the channel usage right by the SCG is N before the number of the cells is increased, and N represents that the number of the cells successfully preempted to the channel usage right by the SCG is increased by N; n is an integer of not less than 1, and N is an integer of not less than 1.

And when the MCG and the SCG are synchronous and a channel successfully occupied by the SCG is at a subframe boundary, the SCG guaranteed power distribution percentage and/or the MCG guaranteed power distribution percentage are/is adjusted at the subframe boundary.

When the MCG and the SCG are asynchronous, or when the MCG and the SCG are synchronous and a channel successfully occupied by the SCG is in the middle of a subframe, adjusting the SCG guaranteed power distribution percentage and/or the MCG guaranteed power distribution percentage in the middle of the subframe; or, the MCG guaranteed power allocation percentage is adjusted at the next subframe boundary of the MCG cell, and the SCG guaranteed power allocation percentage is adjusted at the next subframe boundary of the SCG cell.

Wherein the method further comprises: pre-configuring channel priority;

allocating the remaining power for the MCG and the SCG, respectively, including: and distributing the residual power for the MCG and the SCG according to the channel priority, and distributing the residual power for the MCG and the SCG according to the cell priority when the UCI is the same.

The method comprises the steps that MCG and SCG are configured for double-link DC User Equipment (UE), a main cell of the MCG is deployed on an authorized carrier, and an auxiliary cell in the MCG is deployed on the authorized carrier/an unauthorized carrier; the main cell of the SCG is deployed on an unauthorized carrier, at least one auxiliary cell in the SCG is deployed on an authorized carrier, and other auxiliary cells in the SCG are deployed on the unauthorized carrier;

when the primary cell in the SCG cannot compete for the channel, UCI in the SCG is transmitted in the following manner: transmitting on a Physical Uplink Shared Channel (PUSCH) of a secondary cell deployed on an authorized carrier in SCG; and/or, the transmission is deployed on an unlicensed carrier in the SCG and successfully preempts the PUSCH of the secondary cell of the channel; and/or transmitting on a PUCCH of a secondary cell deployed on a licensed carrier in SCG;

at this time, the power allocation priority of the UCI is configured as: hybrid automatic repeat-response HARQ-ACK/scheduling request SR > channel state information CSI > PUSCH without UCI;

when the UCI types are the same, the cell priority of the SCG is configured to be the same as the cell priority of the MCG, or the cell priority of the SCG is configured to be higher than the cell priority of the MCG.

A method of power allocation, the method comprising:

on the authorized carrier, configuring maximum allowed transmitting power sent to the MeNB and the SeNB for User Equipment (UE), and distributing the power of the authorized carrier to the MCG according to the maximum allowed transmitting power of the MeNB; allocating the power of the authorized carrier to the SCG according to the maximum allowed transmitting power of the SeNB;

respectively configuring maximum allowed transmitting power sent to the MeNB and the SeNB for the UE on the unlicensed carrier, and distributing the power of the unlicensed carrier to the MCG according to the maximum allowed transmitting power of the MeNB; and allocating the power of the unlicensed carrier to the SCG according to the maximum allowed transmission power of the SeNB.

Wherein the method further comprises: pre-configuring channel priority;

and after the power of the authorized carrier and the power of the unauthorized carrier are distributed for the MCG, distributing the power for each cell in the MCG according to the channel priority and/or the sending sequence.

Wherein the method further comprises:

the method further comprises the following steps: pre-configuring channel priority;

and after the power of the authorized carrier and the power of the unauthorized carrier are distributed for the SCG, distributing the power for each cell in the SCG according to the channel priority and/or the sending sequence.

The radio frequency modules for sending uplink signals to the authorized carrier and the unauthorized carrier are different; the radio frequency module is arranged on the UE and used for sending uplink signals.

A power distribution apparatus, the apparatus comprising:

a first configuration module for configuring the primary base station MeNB and the secondary base station SeNB with a guaranteed power expressed in percentage of the maximum available power;

the second configuration module is used for configuring the cell priority of the SCG not lower than the cell priority of the MCG;

a first allocation module, configured to allocate power to a master cell set MCG and a secondary cell set SCG according to the guaranteed power configured by the first configuration module; and the controller is configured to allocate remaining power to the MCG and the SCG respectively based on the cell priority configured by the second configuration module when uplink control information UCI types are the same, where the remaining power is power remaining after allocation according to the guaranteed power.

The first configuration module is specifically configured to determine an MCG guaranteed power allocation percentage of the MeNB according to an MCG reference power allocation parameter configured for the MeNB; the guaranteed power configured for the MeNB is a product of the maximum available power and the MCG guaranteed power allocation percentage; and specifically configured to determine an SCG guaranteed power allocation percentage of the SeNB according to the SCG reference power allocation parameter configured for the SeNB; the guaranteed power configured for the SeNB is a product of the maximum available power and the SCG guaranteed power allocation percentage.

The first allocating module is specifically configured to allocate the powers of the unlicensed carrier and the licensed carrier to the MCG and the SCG respectively according to the guaranteed powers.

Wherein the first configuration module is specifically configured to configure the MeNB and the SeNB with a guaranteed power expressed in percentage of the maximum available power on the unlicensed carrier; the first allocation module is specifically configured to allocate the powers of the unlicensed carriers to the MCG and the SCG according to the guaranteed powers; and/or the presence of a gas in the gas,

the first configuration module is specifically configured to configure, on a licensed carrier, the MeNB and the SeNB with a guaranteed power expressed in percentage of the maximum available power; the first allocating module is specifically configured to allocate the powers of the authorized carriers to the MCG and the SCG respectively according to the guaranteed powers.

The first configuration module is further configured to, when the number of cells successfully camping on the channel in the SCG increases, increase the SCG guaranteed power allocation percentage, and decrease the MCG guaranteed power allocation percentage; and/or, when the number of cells successfully occupying the channel in the SCG is reduced, increasing the percentage of the MCG guaranteed power allocation and reducing the percentage of the SCG guaranteed power allocation.

Wherein, the first configuration module is further configured to, when the number of cells in which the SCG successfully preempts the channel usage right increases, increase the percentage of SCG guaranteed power allocation and decrease the percentage of MCG guaranteed power allocation, including:

The first configuration module is further configured to adjust the SCG guaranteed power allocation percentage and/or the MCG guaranteed power allocation percentage at a subframe boundary when the MCG and the SCG are synchronized and a channel successfully seized by the SCG is at the subframe boundary.

The first configuration module is further configured to adjust the SCG guaranteed power allocation percentage and/or the MCG guaranteed power allocation percentage among subframes when the MCG and the SCG are asynchronous, or when the MCG and the SCG are synchronous and a channel successfully preempted by the SCG is in the middle of a subframe; or, the first configuration module is further configured to adjust the MCG guaranteed power allocation percentage at a next subframe boundary of the MCG cell, and adjust the SCG guaranteed power allocation percentage at a next subframe boundary of the SCG cell.

The second configuration module is further configured to pre-configure a channel priority;

the first allocating module is specifically configured to allocate the remaining power to the MCG and the SCG according to the channel priority, and allocate the remaining power to the MCG and the SCG according to the cell priority when the UCI is the same.

Wherein the second configuration module is further configured to:

configuring MCG and SCG for double-link DC user equipment UE, wherein a main cell of the MCG is deployed on an authorized carrier, and an auxiliary cell in the MCG is deployed on the authorized carrier/unauthorized carrier; the main cell of the SCG is deployed on an unauthorized carrier, at least one auxiliary cell in the SCG is deployed on an authorized carrier, and other auxiliary cells in the SCG are deployed on the unauthorized carrier;

when the primary cell in the SCG cannot compete for the channel, UCI in the SCG is transmitted in the following manner: transmitting on a PUSCH of a secondary cell deployed on a licensed carrier in an SCG; and/or, the transmission is deployed on an unlicensed carrier in the SCG and successfully preempts the PUSCH of the secondary cell of the channel; and/or transmitting on a PUCCH of a secondary cell deployed on a licensed carrier in SCG;

A power distribution apparatus, the apparatus comprising: a third configuration module and a second allocation module; wherein the content of the first and second substances,

a third configuration module, configured to configure maximum allowed transmit powers sent to the MeNB and the SeNB for the user equipment UE on the authorized carrier respectively; a second allocating module, configured to allocate power of the authorized carrier to the MCG according to a maximum allowed transmit power of the MeNB; allocating the power of the authorized carrier to the SCG according to the maximum allowed transmitting power of the SeNB;

and/or the third configuration module is configured to configure, on an unlicensed carrier and on a licensed carrier, maximum allowed transmit powers to be sent to the MeNB and the SeNB for the UE, respectively; the second allocating module is configured to allocate the power of the unlicensed carrier to the MCG according to the maximum allowed transmit power of the MeNB; and allocating the power of the unlicensed carrier to the SCG according to the maximum allowed transmission power of the SeNB.

The third configuration module is further configured to pre-configure a channel priority; the second allocating module is further configured to allocate power to each cell in the MCG according to the channel priority and/or the transmission sequence after allocating the power of the authorized carrier and the power of the unauthorized carrier to the MCG.

The third configuration module is further configured to pre-configure a channel priority; the second allocating module is further configured to allocate power to each cell in the SCG according to the channel priority and/or the transmission sequence after allocating the power of the authorized carrier and the power of the unauthorized carrier to the SCG.

The authorized carrier and the unauthorized carrier respectively correspond to different radio frequency modules on User Equipment (UE), and the radio frequency modules are used for sending uplink signals.

Compared with the prior art, the embodiment of the invention provides a power distribution method and a device, which configure guaranteed power expressed by the percentage of the maximum available power for the MeNB and the SeNB, and respectively distribute power for the main cell set MCG and the auxiliary cell set SCG according to the guaranteed power; within the range of ensuring power, performing power distribution according to UCI types, and configuring the cell priority of SCG not lower than the cell priority of MCG when the UCI types of the uplink control information are the same; and distributing the residual power for the MCG and the SCG respectively based on the cell priority, wherein the residual power is the power left after the power distribution is ensured. Therefore, the power distribution can be carried out by combining the channel occupation situation on the unauthorized carrier, the change of the channel occupation situation can be adapted, all available power is more fully utilized, the power distribution in the LAA system can adapt to the change of the channel occupation situation on the unauthorized carrier, the available power resource is effectively utilized, and the system performance is ensured.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.

FIG. 1 is a flow chart illustrating a power allocation method according to an embodiment of the invention;

fig. 2 is a schematic structural diagram of a six-power distribution apparatus according to an embodiment of the present invention;

fig. 3 is a schematic flow chart of a seventh power allocation method according to an embodiment of the invention;

FIG. 4 is a schematic flow chart illustrating a seventh power allocation method according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of an eight-power distribution apparatus according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

The steps illustrated in the flow charts of the figures may be performed in a computer system such as a set of computer-executable instructions. Also, while a logical order is shown in the flow diagrams, in some cases, the steps shown or described may be performed in an order different than here.

Example one

As shown in fig. 1, an embodiment of the present invention provides a power allocation method, including:

step 101: configuring a guaranteed power for the MeNB and the SeNB expressed in percentage of the maximum available power;

step 102: when the types of Uplink Control Information (UCI) are the same, configuring the cell priority of the SCG not lower than the cell priority of the MCG;

step 103: and respectively distributing power for the MCG and the SCG according to the guaranteed power, and respectively distributing the residual power for the MCG and the SCG based on the cell priority, wherein the residual power is the power left after distribution according to the guaranteed power.

Further, configuring the guaranteed power for the MeNB and the SeNB expressed as a percentage of the maximum available power includes: determining the MCG guaranteed power distribution percentage of the MeNB according to the MCG reference power distribution parameters configured for the MeNB; the guaranteed power allocated for the MeNB is equal to the product of the maximum available power and a percentage of MCG guaranteed power allocation; determining the SCG guaranteed power distribution percentage of the SeNB according to the SCG reference power distribution parameters configured for the SeNB; the guaranteed power allocated for the SeNB is equal to the maximum available power multiplied by a percentage of SCG guaranteed power allocation.

Further, guaranteed powers expressed as a percentage of the maximum available power are configured for the MeNB and the SeNB, and powers of the unlicensed carriers and the licensed carriers are allocated for the MCG and the SCG, respectively, according to the guaranteed powers.

Further, guaranteed powers expressed in percentage of maximum available power are configured for the MeNB and the SeNB on the unlicensed carriers, and the powers of the unlicensed carriers are allocated to the MCG and the SCG according to the guaranteed powers; and/or the MeNB and the SeNB configure guaranteed powers expressed in percentage of the maximum available power on the authorized carriers, and allocate the powers of the authorized carriers for the MCG and the SCG respectively according to the guaranteed powers.

In particular, the MeNB and SeNB are configured in advance with the maximum available power

Is given as a percentage of the MCG guaranteed power distribution percentage γ_MCGDetermined according to MCG reference power distribution parameter p-MeNB, for indicating that the guaranteed power distributed to MCG is the maximum available power

SCG percentage of guaranteed Power distribution gamma_SCGAccording to the reference power allocation parameter p-SeNB of the SCG, the guaranteed power allocated to the SCG is the maximum available power

Percentage of (c). E.g. p-MeNB ═ 1, corresponding to γ_MCG5%, i.e. the guaranteed power allocated to MeNB is

5% of the total.

In an LAA-DC deployment scenario, the following may be specifically implemented: the high layer configures reference power distribution parameters p-MeNB and p-SeNB for the MeNB and the SeNB, and the MeNB uses gamma corresponding to the MCG reference power distribution parameters p-MeNB_MCGPerforming power allocation for the MeNB, wherein the SeNB successfully preempts in a predetermined number of cellsIn the case of channel arrival, gamma corresponding to the SCG reference power distribution parameter p-SeNB is used_SCGPower allocation for the SeNB is performed.

When the number of cells successfully camping on the channel in the SeNB changes, the power allocation of the MeNB and the SeNB is timely adjusted. Increasing gamma as the number of cells in the SeNB successfully camping on a channel increases_SCGDecrease of gamma_MCG(ii) a Conversely, when the number of cells successfully camping on a channel in the SeNB decreases, γ is increased_MCGDecrease of gamma_SCG。

Specifically, when the number of cells successfully occupying the channel usage right in the SCG increases to N + N, the value of the SCG guaranteed power allocation percentage is determined according to the sum of the SCG reference power allocation parameter and N × p; the value of the MCG guaranteed power distribution percentage is determined according to the difference between the MCG reference power distribution parameter and n × p; wherein p represents a coefficient of variation, and the value is 1,2 or 3; n represents that the number of the cells successfully preempted to the channel usage right by the SCG is N before the number of the cells is increased, and N represents that the number of the cells successfully preempted to the channel usage right by the SCG is increased by N; n is an integer of not less than 1, and N is an integer of not less than 1.

For example, when there are 2 × N or 2 × N +1 LAA cells in the SeNB, when N cells in the SeNB successfully camp on the channel, the channel is seized according to γ_SCGCarrying out power distribution; when the number of cells successfully seizing the channel usage right in SCG increases to N +1, gamma_SCGThe value of (a) is the value corresponding to p-SeNB + p, gamma_MCGThe value of (A) is the value corresponding to p-MeNB-p; when the number of cells successfully seizing the channel usage right in SCG increases to N +2, gamma_SCGThe value of (a) is the value corresponding to p-SeNB + 2. multidot.p, gamma_MCGThe value of (A) is the value corresponding to p-MeNB-2 × p. On the contrary, when the number of cells successfully seizing the channel use right in SCG is reduced to N-1, gamma is_SCGThe value of (a) is a value corresponding to p-SeNB-p, gamma_MCGThe value of (1) is the value corresponding to p-MeNB + p; when the number of cells successfully seizing the channel usage right in SCG is reduced to N-2, gamma_SCGThe value of (a) is the value corresponding to p-SeNB-2. multidot.p, gamma_MCGThe value of (A) is the value corresponding to p-MeNB-2 × p. Adjustment of p _ MeNB/p _ SeNB to notAnd when the upper and lower threshold values are exceeded, p _ MeNB _ TH1 is greater than or equal to 0 and less than or equal to p _ MeNB _ TH2 and less than or equal to 15, and p _ MeNB _ TH1 is greater than or equal to 0 and less than or equal to p _ MeNB _ TH2 and less than or equal to 15. For example, p can take on the value 1,2, or 3.

Further, when the MCG and the SCG are synchronized and the channel successfully seized by the SCG is at the boundary of the sub-frame, p _ MeNB/p _ SeNB (gamma)_MCG/γ_SCG) The adjustment is made at the subframe boundary. In this case, if all LAA cells in the SCG do not obtain the channel use weight and there is no LAA cell in the SCG, γ can be directly set_MCG＝100％。

P _ MeNB/p _ SeNB (gamma. when MCG is asynchronous with SCG, or MCG is synchronous with SCG but SCG successfully seizes the channel in the middle of sub-frame, i.e. partial sub-frame appears_MCG/γ_SCG) The adjustment of (2) is selected as follows: 1) the adjustment can be made in the middle of the subframe; 2) adjusting p _ MeNB (gamma) at the next subframe boundary of the MCG cell when it is not possible to proceed in the middle of a subframe_MCG) Adjusting p _ SeNB (γ) at next subframe boundary of SCG cell_SCG)。

As shown in Table 1 below, LAA-DC can determine the percentage of guaranteed power allocation γ for dual link based on the parameter p-MeNB (or p-SeNB)_MCG(or. gamma.)_SCG) And (4) taking values.

TABLE 1

In practical applications, cells deployed on an unlicensed carrier in an SCG need to acquire channel usage rights through a Listen Before Talk (LBT) mechanism, that is, for these cells, a transmission opportunity is very important, but if the cell priority of the SCG is lower than that of the MCG, the transmission power of the PUCCH/PUSCH of these cells is too low, and even transmission cannot be performed, valuable transmission opportunities are wasted. To solve this problem, in the embodiment of the present invention, the transmission priority of the SCG cell is increased. Further, in step 102, the MCG and the SCG may have the same cell priority when the UCI type is the same, and if the total available power is not sufficient, the MCG and the SCG are scaled simultaneously to meet the total power limit. Further, it may even be set that the cell priority of the SCG is higher than the MCG when the UCI types are the same. I.e., LAA cells in the SCG occupy the channel, the power requirement of the SCG is preferentially met, and the channel of the MCG is power scaled when the available power is insufficient.

Further, in step 102, the method further comprises: pre-configuring channel priority; thus, when the remaining power is allocated to the MCG and the SCG in step 103, the method may specifically include: and distributing the residual power for the MCG and the SCG according to the channel priority, and distributing the residual power for the MCG and the SCG according to the cell priority when the UCI is the same.

In practical applications, in LTE Release 12, DC defines two power control modes: power control mode _1 and power control mode _ 2. In step 102, on the basis of configuring the cell priority, one of the power control mode _1 and the power control mode _2 may be selected for configuration according to the actual situation.

Specifically, when the power Control mode _1 is used, all the remaining power may be shared, a priority for using the remaining power is determined based on an Uplink Control Information (UCI) type between Cell Groups (CGs), and a priority rule for using the remaining power by a Physical Uplink Control Channel (PUCCH)/a Physical Uplink Shared Channel (PUSCH) between CGs is as follows: hybrid Automatic Repeat-Acknowledge (HARQ-ACK)/Scheduling Request (SR), Scheduling Request > Channel State Information (CSI), pusch without UCI (pusch without UCI). Meanwhile, when the UCI types are the same, the cell priority of the SCG is configured to be not lower than that of the MCG.

Specifically, when the power control mode _2 is used, if there is possible uplink transmission, P _ SeNB and/or P _ MeNB are reserved for each eNB, and then, the remaining power is allocated in the transmission order, i.e., is first provided to the CG transmitting first.

In practical application, specifically, the power control mode 1 or the power control mode 2 is adopted, which mainly depends on the synchronization relationship between the MCG cell and the SCG cell, and if the maximum timing deviation between uplink signals transmitted to the MCG cell and the SCG cell is smaller than a certain threshold, that is, the MCG and the SCG are considered to be synchronized, the power control mode 1 should be adopted; on the contrary, if the MCG cell and the SCG cell are asynchronous, power control mode 2 should be employed.

Preferably, the MCG and the SCG are configured for the dual link DC user equipment UE, a main cell of the MCG is deployed on a licensed carrier, and a secondary cell in the MCG is deployed on a licensed/unlicensed carrier; the main cell of the SCG is deployed on an unauthorized carrier, at least one auxiliary cell in the SCG is deployed on an authorized carrier, and other auxiliary cells in the SCG are deployed on the unauthorized carrier; when the primary cell in the SCG cannot compete for the channel, UCI in the SCG is transmitted in the following manner: transmitting on a PUSCH of a secondary cell deployed on a licensed carrier in an SCG; and/or, the transmission is deployed on an unlicensed carrier in the SCG and successfully preempts the PUSCH of the secondary cell of the channel; and/or transmitting on a PUCCH of a secondary cell deployed on a licensed carrier in SCG; further, the SCG may also configure the licensed carrier as the pSCell. Wherein, pSCell is a special cell capable of transmitting PUCCH in SCG. At this time, the power allocation priority of the UCI is configured as: hybrid automatic repeat-response HARQ-ACK/scheduling request SR > channel state information CSI > PUSCH without UCI; when the UCI types are the same, the cell priority of the SCG is configured to be the same as the cell priority of the MCG, or the cell priority of the SCG is configured to be higher than the cell priority of the MCG.

Preferably, if the UE overlaps PUSCH/PUCCH transmission on subframe i1 of CG1 with PUSCH/PUCCH transmission on subframe i2 of CG2 by at least one symbol, or if the last symbol of subframe i1 of CG1 overlaps with channel Sounding Reference Signal (SRS) transmission of subframe i2, DC employs power control mode _1, and UCI priority is modified for the case that the PSCell of SCG is an LAA cell: SCG HARQ-ACK/SR > MCG HARQ-ACK/SR > SCG CSI > MCG CSI.

Example two

On the basis of the first embodiment, this embodiment specifically illustrates how the UE allocates power according to UCI types in the case that subframe i1 of CG1 has PUCCH/PUSCH containing HARQ-ACK/SR UCI:

first, determining a power upper limit S1(i1) of PUCCH/PUSCH including HARQ-ACK/SR UCI according to the following equation (1);

wherein the meanings of the formula (1) are as follows:

first, the PRACH power of CG1 is reserved:

used for reserving PRACH power for CG 1;

secondly, the priority of the CG2 is higher than that of the CG1 channel containing UCI (including HARQ-ACK/SR) PUCCH/PUSCH, and other optional power, which is divided into two cases:

case 1: if the CG1 is an SCG deployed on an unlicensed carrier and the CG2 is an MCG deployed on a licensed carrier, then:

-

used for reserving PRACH power for CG 2;

-

power is reserved for the PUCCH of CG2, the PUSCH and SRS of a plurality of cells of CG 2;

case 2: if the CG1 is an MCG deployed on a licensed carrier and the CG2 is an SCG deployed on an unlicensed carrier, further, subdivided into three sub-cases:

1) if the UE has a PUCCH transmission containing UCI (including HARQ-ACK) on CG2 on subframe i2, then:

-

used for reserving power for the PRACH and PUCCH of CG 2;

-

for reserving power for PUSCH and SRS on multiple cells of CG 2;

2) otherwise, if the UE is in a serving cell j of CG2₂And E, if the CG2 has the PUSCH transmission containing UCI (including HARQ-ACK), the PUSCH power is reserved for the cell

-

The method is used for reserving PRACH power for CG2 and reserving PUSCH transmission power containing UCI for cell i 2;

-

for reserving power for PUSCH and SRS on other cells of CG 2.

3) Otherwise, if the UE has no PUCCH transmission containing UCI (including HARQ-ACK/SR) nor PUSCH transmission containing UCI (including HARQ-ACK) at CG 2:

-

used for reserving PRACH power for CG 2;

-

second, power adjustment is performed after determination of S1(i1) as follows:

subframe i1 at CG1 has PUCCH containing HARQ-ACK/SR UCI and

may exceed S1(i1), the UE shrinks

Make it satisfy

Wherein alpha 1(i1) is not less than 0 and not more than 1

If it is

Not exceeding S1(i1), then

If the UE is on serving cell c1 within CG1, there is a PUSCH transmission containing the HARQ-ACK UCI, and

may exceed S1(i1), the UE shrinks

Make it satisfy

Wherein alpha 1(i1) is not less than 0 and not more than 1

If it is

Not exceeding S1(i1), then

EXAMPLE III

On the basis of the first embodiment, this embodiment specifically illustrates how the UE allocates power according to UCI types under the condition that the subframe i1 of the CG1 has a PUCCH/PUSCH including UCI (not including HARQ-ACK/SR) (except for HARQ-ACK/SR, UCI of LTE may also include CSI (CQI, PMI, RI, and the like), and the implementation manner is similar and is not described again):

determining the upper power limit S2(i1) of PUCCH/PUSCH containing UCI (not including HARQ-ACK/SR) UCI according to the following formula (2):

wherein the meanings of the formula (2) are as follows:

1. the PRACH transmission power of CG1 is first reserved, and the PUCCH transmission power that may exist:

if the UE has a PUCCH transmission containing UCI (including HARQ-ACK/SR) and a PUSCH transmission containing UCI (not including HARQ-ACK) in subframe i1

If not, then,

2. secondly, the priority in CG2 is higher than the power of the channel containing UCI (not including HARQ-ACK/SR) PUCCH/PUSCH in CG1, and other optional powers, which are divided into two cases:

case 1: if the CG1 is an SCG deployed on an unlicensed carrier and the CG2 is an MCG deployed on a licensed carrier, further, subdivided into three sub-cases:

1) if the UE has PUCCH transmission containing UCI (including HARQ-ACK/SR) at CG2 on subframe i2,

-

for reserving PRACH and PUCCH power for CG2

-

For reserving power for PUSCH and SRS of other cells

2) Otherwise, if the UE has a PUSCH transmission containing UCI (including HARQ-ACK) on serving cell j2 of CG2 on subframe i2,

-

is used for reserving PRACH power for CG2, andreserving PUSCH transmission power containing UCI for the cell j 2;

-

for reserving power for PUSCH and SRS on other cells of CG 2;

3) otherwise, if the UE has no PUCCH transmission containing UCI (including HARQ-ACK/SR) nor PUSCH transmission containing UCI (including HARQ-ACK) at CG2,

-

used for reserving PRACH power for CG 2;

-

for reserving power for PUCCH, PUSCH and SRS on other cells of CG 2.

1) if there is a PUCCH transmission on CG2 on UEi2 subframe, and/or a PUSCH transmission containing UCI on serving cell j2 of CG2,

-

used for reserving PRACH power, PUCCH power and PUSCH power containing UCI for CG 2;

-

for reserving power for other PUSCHs and SRSs that do not contain UCI.

Wherein if the UE is on subframe i2, there is no PUCCH transmission at CG2,

if the UE is on subframe i2, there is no PUSCH transmission containing UCI on CG2

2) Otherwise, if there is neither PUCCH transmission nor PUSCH transmission containing UCI on CG 2:

-

-

after determination of S2(i1), power adjustment is performed as follows:

if the UE has PUCCH/PUSCH transmission containing UCI (not containing HARQ-ACK/SR) at subframe i1 of CG 1: if there is PUCCH transmission containing UCI (not containing HARQ-ACK/SR) at subframe i1 of CG1 and

may exceed S2(i1), the UE shrinks

Make it satisfy

Wherein alpha 2(i1) is not less than 0 and not more than 1

If it is

Does not exceed S2(i1),

if the UE has a PUSCH transmission on the serving cell c1 of CG1 that does not contain UCI for HARQ-ACK/SR, and if

May exceed S2(i1), the UE shrinks

Make it satisfy

Wherein 0. ltoreq. alpha.2 (i 1). ltoreq.1 and

if it is not

Does not exceed S2(i1),

example four

On the basis of the first embodiment, this embodiment specifically illustrates how the UE allocates power according to UCI types when there is PUSCH transmission not including UCI in subframe i1 of CG 1:

first, it is determined that the UE has an upper power limit of PUSCH without UCI at subframe i 1S 3(i1) according to the following equation (3):

wherein the meanings of the formula (3) are as follows:

1. first, power is reserved for CG1, if the UE has PUCCH transmission on CG1 in subframe i1 and/or PUSCH transmission with UCI on serving cell j1 of CG1

Wherein if the UE is in subframe i1, there is no PUCCH transmission on CG1,

if the UE is in subframe i1, there is no PUSCH transmission with UCI on the serving cell j1 of CG1

Otherwise

2. Secondly, the power of the channel with priority higher than that of the PUSCH without UCI in CG1 in CG2, and other optional powers, which are divided into two cases:

case 1: if CG1 is an SCG deployed on an unlicensed carrier and CG2 is an MCG deployed on a licensed carrier, further, subdivided into two sub-cases:

1) if the UE has PUCCH transmission on CG2 on i2 subframe, and/or PUSCH transmission containing UCI on serving cell j2 of CG2,

-

-

wherein if the UE is on the i2 subframe, there is no PUCCH transmission on the CG2,

if the UE has no PUSCH transmission containing UCI on CG2 on i2 subframe,

2) otherwise, if the UE has neither PUCCH transmission nor PUSCH transmission containing UCI on CG2 on i2 subframe,

-

-

case 2: if the CG1 is an MCG deployed on a licensed carrier, the CG2 is an SCG deployed on an unlicensed carrier,

-

-

second, power adjustment is performed after determination of S3(i1) as follows:

if the sum of all PUSCH transmission powers of CG1 on subframe i1 would exceed S3(i1), the UE goes to each serving cell c₁E CG1 zoom out

Make it satisfy

Wherein

And for each serving cell, w (i1) is

The scaling factor of (i) is more than or equal to 0 and less than or equal to w (i1) and less than or equal to 1. Note that w (i1) is the same for cells with w (i1) > 0 within a CG, but w (i1) may be 0 for some cells within a CG. If the sum of all PUSCH transmission powers of the CG1 on the subframe i1 does not exceed S3(i1), then

EXAMPLE five

On the basis of the first embodiment, the present embodiment describes the configuration of guaranteed power in detail.

On the licensed and/or unlicensed carriers, the higher layer configures the MeNB and SeNB in advance to

Is given as a percentage of (a), wherein gamma_MCGDetermined by the parameter p-MeNB, gamma_SCGAs determined by the parameter p-SeNB,for example p-MeNB ═ 1, denoting γ_MCG5%, i.e. the guaranteed power allocated to MeNB is

5% of the total.

In the LAA-DC deployment scenario, the operation may proceed as follows: the high layer configures reference power distribution parameters p-MeNB and p-SeNB for the MeNB and the SeNB, and the MeNB uses gamma corresponding to the parameters p-MeN_MCGThe power distribution of the MeNB is carried out, and the SeNB uses the Gamma corresponding to the parameter p-SeNB when a preset number of cells successfully occupy the channel_SCGPower allocation for the SeNB is performed. When the number of cells successfully camping on the channel in the SeNB changes, the power allocation of the MeNB and the SeNB is timely adjusted. Increasing gamma as the number of cells in the SeNB successfully camping on a channel increases_SCGDecrease of gamma_MCG(ii) a Conversely, when the number of cells successfully camping on a channel in the SeNB decreases, γ is increased_MCGDecrease of gamma_SCG。

For example, when there are 2 × N or 2 × N +1 LAA cells in the SeNB, when N cells in the SeNB successfully camp on the channel, the channel is seized according to γ_SCGPower allocation is performed. When the number of cells successfully seizing the channel usage right in SCG increases to N +1, gamma_SCGThe value of (a) is the value corresponding to p-SeNB + p, gamma_MCGThe value of (A) is the value corresponding to p-MeNB-p; when the number of cells successfully seizing the channel usage right in SCG increases to N +2, gamma_SCGThe value of (a) is the value corresponding to p-SeNB + 2. multidot.p, gamma_MCGThe value of (A) is the value corresponding to p-MeNB-2 × p. On the contrary, when the number of cells successfully seizing the channel use right in SCG is reduced to N-1, gamma is_SCGThe value of (a) is a value corresponding to p-SeNB-p, gamma_MCGThe value of (1) is the value corresponding to p-MeNB + p; when the number of cells successfully seizing the channel usage right in SCG is reduced to N-2, gamma_SCGThe value of (a) is the value corresponding to p-SeNB-2. multidot.p, gamma_MCGThe value of (A) is the value corresponding to p-MeNB-2 × p. The adjustment of the p _ MeNB/p _ SeNB is limited to be not more than upper and lower threshold values, p _ MeNB _ TH1 is more than or equal to 0 and less than or equal to p _ MeNB _ TH2 and less than or equal to 15, and p _ MeNB _ TH1 is more than or equal to 0 and less than or equal to p _ MeNB _ TH2 and less than or equal to 15. For example, p can take on values of 1,2, and 3.

Further, when the MCG is synchronized with the SCG, and the SCG successfully preempts until the channel is always at the subframe boundary, p _ MeNB/p _ SeNB (γ)_MCG/γ_SCG) The adjustment is made at the subframe boundary. In this case, if all LAA cells within the SCG do not obtain the channel use weight, γ can be directly set_MCG＝100％。

Further, when the MCG is asynchronous with the SCG, or the MCG is synchronous with the SCG but the SCG successfully preempts to the channel in the middle of a subframe, i.e. a partial subframe occurs, p _ MeNB/p _ SeNB (gamma)_MCG/γ_SCG) The adjustment of (2) may be made in a subframe.

Assuming that N is 3, SCG includes 7 cells and 2 × N +1, and higher layer configuration p-MeNB is 8 (corresponding to γ)_MCG50%), p-SeNB 5 (corresponding to γ)_SCG30%). Taking p ═ 1 as an example, the correspondence between the number of successfully camped cells in SCG and the adjusted p-MeNB and p-SeNB is shown in table 2 below:

TABLE 2

EXAMPLE six

The present embodiment provides a power distribution apparatus corresponding to the first embodiment, as shown in fig. 2, the apparatus includes: a first configuration module 21 configured to configure the primary base station MeNB and the secondary base station SeNB with a guaranteed power expressed in percentage of the maximum available power; a second configuration module 22, configured to configure the cell priority of the SCG not to be lower than the cell priority of the MCG; a first allocating module, configured to allocate power to a master cell set MCG and a secondary cell set SCG according to the guaranteed power configured by the first configuring module 21; and is configured to allocate the remaining power to the MCG and the SCG respectively based on the cell priority configured by the second configuration module 22 when the UCI types of the uplink control information are the same, where the remaining power is the power remaining after the allocation according to the guaranteed power.

Further, the first configuration module 21 is specifically configured to determine an MCG guaranteed power allocation percentage of the MeNB according to the MCG reference power allocation parameter configured for the MeNB; the guaranteed power configured for the MeNB is a product of the maximum available power and a percentage of MCG guaranteed power allocation; and specifically configured to determine an SCG guaranteed power allocation percentage of the SeNB according to the SCG reference power allocation parameter configured for the SeNB; the guaranteed power configured for the SeNB is a product of the maximum available power and a percentage of SCG guaranteed power allocation.

Further, the first allocating module 23 is specifically configured to allocate the powers of the unlicensed carrier and the licensed carrier to the MCG and the SCG respectively according to the guaranteed powers.

Further, the first configuration module 21 is specifically configured to configure the guaranteed power expressed as a percentage of the maximum available power for the MeNB and the SeNB on the unlicensed carrier; the first allocating module 23 is specifically configured to allocate the powers of the unlicensed carriers to the MCG and the SCG according to the guaranteed powers; and/or, the first configuration module 21 is specifically configured to configure, on the licensed carriers, the guaranteed power expressed as a percentage of the maximum available power for the MeNB and the SeNB; the first allocating module 23 is specifically configured to allocate the powers of the authorized carriers to the MCG and the SCG respectively according to the guaranteed powers.

Further, the first configuration module 21 is further configured to, when the number of cells successfully camping on the channel in the SCG increases, increase the percentage of guaranteed power allocation of the SCG, and decrease the percentage of guaranteed power allocation of the MCG; and/or, when the number of cells successfully occupying the channel in the SCG is reduced, increasing the percentage of the MCG guaranteed power allocation and reducing the percentage of the SCG guaranteed power allocation.

Further, the first configuring module 21 is further configured to, when the number of cells in which the SCG successfully preempts the channel usage right increases, increase the percentage of SCG guaranteed power allocation, and decrease the percentage of MCG guaranteed power allocation, including: when the number of the cells successfully occupying the channel use right in the SCG is increased to N + N, the value of the SCG guaranteed power distribution percentage is determined according to the sum of the SCG reference power distribution parameter and N x p; the value of the MCG guaranteed power distribution percentage is determined according to the difference between the MCG reference power distribution parameter and n × p; wherein p represents a coefficient of variation, and the value is 1,2 or 3; n represents that the number of the cells successfully preempted to the channel usage right by the SCG is N before the number of the cells is increased, and N represents that the number of the cells successfully preempted to the channel usage right by the SCG is increased by N; n is an integer of not less than 1, and N is an integer of not less than 1.

Further, the first configuration module 21 is further configured to, when the MCG and the SCG are synchronized and a channel successfully seized by the SCG is at a subframe boundary, adjust the SCG guaranteed power allocation percentage and/or the MCG guaranteed power allocation percentage at the subframe boundary.

Further, the first configuration module 21 is further configured to adjust the SCG guaranteed power allocation percentage and/or the MCG guaranteed power allocation percentage in a middle of a subframe when the MCG is asynchronous with the SCG, or when the MCG is synchronous with the SCG and a channel successfully seized by the SCG is in the middle of a subframe; or, the first configuration module 21 is further configured to adjust the MCG guaranteed power allocation percentage at a next subframe boundary of the MCG cell, and adjust the SCG guaranteed power allocation percentage at a next subframe boundary of the SCG cell.

Further, the second configuring module 22 is further configured to configure the channel priority in advance; the first allocating module 23 is specifically configured to allocate the remaining power to the MCG and the SCG according to the channel priority, and allocate the remaining power to the MCG and the SCG according to the cell priority when the UCI is the same.

Further, the second configuration module 22 is further configured to: configuring MCG and SCG for double-link DC user equipment UE, wherein a main cell of the MCG is deployed on an authorized carrier, and an auxiliary cell in the MCG is deployed on the authorized carrier/unauthorized carrier; the main cell of the SCG is deployed on an unauthorized carrier, at least one auxiliary cell in the SCG is deployed on an authorized carrier, and other auxiliary cells in the SCG are deployed on the unauthorized carrier; when the primary cell in the SCG cannot compete for the channel, UCI in the SCG is transmitted in the following manner: transmitting on a PUSCH of a secondary cell deployed on a licensed carrier in an SCG; and/or, the transmission is deployed on an unlicensed carrier in the SCG and successfully preempts the PUSCH of the secondary cell of the channel; and/or transmitting on a PUCCH of a secondary cell deployed on a licensed carrier in SCG; at this time, the power allocation priority of the UCI is configured as: hybrid automatic repeat-response HARQ-ACK/scheduling request SR > channel state information CSI > PUSCH without UCI; when the UCI types are the same, the cell priority of the SCG is configured to be the same as the cell priority of the MCG, or the cell priority of the SCG is configured to be higher than the cell priority of the MCG.

EXAMPLE seven

The embodiment of the present invention further provides another power allocation method, where the method includes a process shown in fig. 3 and/or a process shown in fig. 4.

As shown in fig. 3, on a licensed carrier, the flow of the power allocation method includes:

step 301: configuring maximum allowed transmission power sent to the MeNB and the SeNB for the UE on the authorized carrier respectively;

step 302: allocating the power of the authorized carrier to the MCG according to the maximum allowed transmitting power of the MeNB; allocating the power of the authorized carrier to the SCG according to the maximum allowed transmitting power of the SeNB;

as shown in fig. 4, on an unlicensed carrier, the flow of the power allocation method includes:

step 401: on an unlicensed carrier, configuring and sending maximum allowed transmission power to the MeNB and the SeNB for the UE respectively;

step 402: and allocating the power of the unauthorized carrier to the MCG according to the maximum allowed transmitting power of the MeNB, and allocating the power of the unauthorized carrier to the SCG according to the maximum allowed transmitting power of the SeNB.

Further, in the flow shown in fig. 3 or fig. 4, the method further includes: pre-configuring channel priority; and after the power of the authorized carrier and the power of the unauthorized carrier are distributed for the MCG, distributing the power for each cell in the MCG according to the channel priority and/or the sending sequence.

Further, in the flow shown in fig. 3 or fig. 4, the method further includes: the method further comprises the following steps: pre-configuring channel priority; and after the power of the authorized carrier and the power of the unauthorized carrier are distributed for the SCG, distributing the power for each cell in the SCG according to the channel priority and/or the sending sequence.

Preferably, the power allocation method of the present embodiment is applied to the following cases: and the radio frequency modules for sending uplink signals to the authorized carrier and the unauthorized carrier are different, and the radio frequency modules are arranged on the UE and used for sending the uplink signals.

In practical application, the P _ MeNB needs to satisfy the power regulation requirements of the operating authorized carrier and the operating unlicensed carrier, the P _ SeNB needs to satisfy the power regulation requirements of the operating authorized carrier and the operating unlicensed carrier, and meanwhile, the sum of the P _ MeNB and the P _ SeNB also needs to satisfy the maximum uplink transmission power requirement of the UE, that is, the P _ MeNB + the P _ SeNB < ═ Pcmax, and the parameter Pcmax represents the allowed maximum uplink transmission of the UE, and is mainly related to the regulation requirements on a frequency band and the power consumption upper limit of the UE.

Example eight

This embodiment provides a power distribution apparatus corresponding to the seventh embodiment, as shown in fig. 5, the apparatus including: a third configuration module 51 and a second allocation module 52; wherein the content of the first and second substances,

a third configuring module 51, configured to configure maximum allowed transmit powers for the MeNB and the SeNB on the authorized carriers, respectively; a second allocating module 52, configured to allocate power of the authorized carrier to the MCG according to the maximum allowed transmit power of the MeNB; allocating the power of the authorized carrier to the SCG according to the maximum allowed transmitting power of the SeNB;

and/or the third configuring module 51 is configured to configure maximum allowed transmit powers for the MeNB and the SeNB on the unlicensed carriers, respectively; the second allocating module 52 is configured to allocate the power of the unlicensed carrier to the MCG according to the maximum allowed transmit power of the MeNB; and allocating the power of the unlicensed carrier to the SCG according to the maximum allowed transmission power of the SeNB.

Further, the third configuring module 51 is further configured to configure the channel priority in advance; the second allocating module 52 is further configured to allocate power to each cell in the MCG according to the channel priority and/or the transmission sequence after allocating the power of the authorized carrier and the power of the unauthorized carrier to the MCG.

Further, the third configuring module 51 is further configured to configure the channel priority in advance; the second allocating module 52 is further configured to allocate power to each cell in the SCG according to the channel priority and/or the transmission sequence after allocating the power of the authorized carrier and the power of the unauthorized carrier to the SCG.

The apparatus of the present embodiment is preferably applied to the following scenarios: the authorized carrier and the unauthorized carrier respectively correspond to different radio frequency modules on User Equipment (UE), and the radio frequency modules are used for sending uplink signals.

The power distribution method and the power distribution device according to the first to eighth embodiments of the present invention are applicable to the following scenarios:

deployment scenario 1: LAA-DC Scenario 1

Configuring MCG and SCG for DC UE, wherein PCell in the MCG is deployed on a licensed carrier, and one or more SCells in the MCG are deployed on a licensed carrier/an unlicensed carrier; the pSCell in the SCG is deployed on an unlicensed carrier, and the SCell in the SCG is deployed on the unlicensed carrier; wherein, PCell is a special cell capable of transmitting PUCCH in the cell of MCG.

Deployment scenario 2: LAA-DC Scenario 2

Configuring MCG and SCG for DC UE, wherein PCell in the MCG is deployed on a licensed carrier, and SCell in the MCG is deployed on a licensed carrier/an unlicensed carrier; the pSCell in the SCG is deployed on an unlicensed carrier, at least one SCell in the SCG is deployed on a licensed carrier, and other SCells are deployed on the unlicensed carrier;

the MCG deployment mode in scenario 2 is the same as that in scenario 1, and the pscells in the SCG are also deployed on the unlicensed carrier, except that all the scells in the SCG in scenario 1 are deployed on the unlicensed carrier, and at least one SCell in the SCG in scenario 2 is deployed on the licensed carrier.

Scene 1 is a typical scene of LAA-DC, the method herein applies to both scene 1 and scene 2; the difference is that there is a Scell deployed on the licensed carrier in the SCG of scenario 2, so UCI can be transmitted on the Scell deployed on the licensed carrier when the pSCell cannot contend for the channel. In the current DC version, UCI may be transmitted on PUCCH or PUSCH, however, PUSCH may be transmitted on pSCell and Scell, but PUCCH may be transmitted only on pSCell.

In practical applications, for the UE using both a licensed carrier and an unlicensed carrier, two Radio Frequency (RF) configuration modes are considered:

the first RF configuration mode: authorized carrier and unauthorized carrier share one broadband radio frequency module

The UE uses a broadband radio frequency module capable of covering the authorized carrier and the unauthorized carrier to send uplink signals to the authorized carrier and the unauthorized carrier. The sum of the transmitting power of the authorized carrier wave needs to meet the control requirement on the authorized frequency band; the sum of the transmission power of the unlicensed carrier needs to meet the control requirement on the unlicensed frequency band; the sum of the transmit power of the licensed and unlicensed carriers needs to meet the linear operating range of the radio frequency module and the power consumption requirements of the UE. Here, since the linear dynamic range of the radio frequency module is limited, and the operating frequencies of the licensed carrier and the unlicensed carrier are far apart, if the licensed carrier (2.6GHz) and the unlicensed carrier (5GHz) with the operating frequencies far apart are to be covered at the same time, the UE needs to use a broadband radio frequency module to transmit uplink signals to the licensed carrier and the unlicensed carrier.

The second RF configuration mode: separate RF module for licensed and unlicensed carriers

The UE uses two radio frequency modules respectively: and the radio frequency module capable of covering the authorized carrier and the radio frequency module capable of covering the unauthorized carrier send uplink signals to the authorized carrier and the unauthorized carrier. The sum of the transmitting power of the authorized carrier needs to meet the control requirement on the authorized frequency band and the linear working range of the RF module of the authorized carrier; the sum of the transmission power of the unlicensed carrier needs to meet the regulation requirement on the unlicensed frequency band and the linear working range of the radio frequency module of the unlicensed carrier; the sum of the transmit power for the licensed and unlicensed carriers needs to meet the power consumption requirements of the UE.

The power distribution method and the power distribution apparatus according to the first to eighth embodiments of the present invention are applicable to both of the RF configurations. The seventh embodiment and the eighth embodiment are particularly suitable for the second RF configuration scenario.

In practical application, for the LAA-DC deployment scenario 1 and the LAA-DC deployment scenario 2, the power control mode 1 or the power control mode 2 can be determined to be adopted according to the synchronization relationship between the MCG cell and the SCG cell; for the case that the LAA-DC employs the wideband radio frequency module, the power control mode 1 or the power control mode 2 may also be determined according to the synchronization relationship between the MCG cell and the SCG cell, that is, the following scheme one is preferably employed. For the scenario that the LAA-DC MCG and SCG employ separate rf modules operating in different frequency bands, the maximum available power of the MCG and SCG can be configured separately, and the method and apparatus of the seventh embodiment and the eighth embodiment are preferably employed.

The power distribution method and the power distribution device provided by the embodiment of the invention can be used for carrying out power distribution by combining the channel occupation situation on the unauthorized carrier, can adapt to the change of the channel occupation situation and more fully utilize all available power. The priority of the channel in the embodiment of the present invention refers to the priority of UCI transmitted on the channel.

Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.

It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.

Although the embodiments of the present invention have been described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A method of power allocation, comprising:

when the uplink control information UCI types are the same, configuring the cell priority of SCG not lower than the cell priority of MCG; respectively distributing residual power for the MCG and the SCG based on the cell priority, wherein the residual power is the power left after the power distribution is ensured;

wherein, the allocating power for the MCG and the SCG according to the guaranteed power respectively includes: the high layer configures reference power distribution parameters p-MeNB and p-SeNB for the MeNB and the SeNB, and the MeNB uses gamma corresponding to the parameters p-MeN_NCCThe power distribution of the MeNB is carried out, and the SeNB uses the Gamma corresponding to the parameter p-SeNB when a preset number of cells successfully occupy the channel_SCCPerforming power allocation of the SeNB; gamma ray_MCCDetermined by the parameter p-MeNB, gamma_SCCAccording to the parameter p-SeNB confirmationAnd (4) determining.

2. The method of claim 1, wherein configuring the guaranteed power for the MeNB and the SeNB expressed as a percentage of a maximum available power comprises:

3. Method according to claim 1 or 2, characterized in that the MeNB and SeNB are configured with a guaranteed power expressed as a percentage of the maximum available power, according to which the power of the unlicensed and licensed carriers is allocated for the MCG and SCG, respectively.

4. The method according to claim 1 or 2,

5. The method of claim 2,

6. The method of claim 5, wherein increasing the percentage of SCG guaranteed power allocation and decreasing the percentage of MCG guaranteed power allocation when the number of cells successfully preempting the channel usage rights increases comprises:

7. The method of claim 5,

and when the MCG and the SCG are synchronous and the channel successfully occupied by the SCG is at the boundary of the subframe, the SCG guaranteed power distribution percentage and/or the MCG guaranteed power distribution percentage are adjusted at the boundary of the subframe.

8. The method of claim 5,

9. The method of claim 1,

10. The method according to claim 1 or 9,

11. A power distribution apparatus, the apparatus comprising:

a first allocation module, configured to allocate power to a master cell set MCG and a secondary cell set SCG according to the guaranteed power configured by the first configuration module; and the controller is configured to allocate remaining power to the MCG and the SCG based on the cell priority configured by the second configuration module when uplink control information UCI types are the same, where the remaining power is power remaining after allocation according to the guaranteed power;

wherein, the allocating power for the MCG and the SCG according to the guaranteed power respectively includes: the high layer configures reference power distribution parameters p-MeNB and p-SeNB for the MeNB and the SeNB, and the MeNB uses gamma corresponding to the parameters p-MeN_NCCThe power distribution of the MeNB is carried out, and the SeNB uses the Gamma corresponding to the parameter p-SeNB when a preset number of cells successfully occupy the channel_SCGPerforming power allocation of the SeNB; gamma ray_MCCDetermined by the parameter p-MeNB, gamma_SCGDetermined according to the parameter p-SeNB.

12. The apparatus of claim 11,

the first configuration module is specifically configured to determine an MCG guaranteed power allocation percentage of the MeNB according to the MCG reference power allocation parameter configured for the MeNB; the guaranteed power configured for the MeNB is a product of the maximum available power and the MCG guaranteed power allocation percentage; and specifically configured to determine an SCG guaranteed power allocation percentage of the SeNB according to the SCG reference power allocation parameter configured for the SeNB; the guaranteed power configured for the SeNB is a product of the maximum available power and the SCG guaranteed power allocation percentage.

13. The apparatus according to claim 11 or 12, wherein the first allocating module is specifically configured to allocate the powers of the unlicensed carrier and the licensed carrier to the MCG and the SCG according to the guaranteed power, respectively.

14. The apparatus of claim 11 or 12,

the first configuration module is specifically configured to configure a guaranteed power, expressed in percentage of the maximum available power, for the MeNB and the SeNB on the unlicensed carrier; the first allocation module is specifically configured to allocate the powers of the unlicensed carriers to the MCG and the SCG according to the guaranteed powers; and/or the presence of a gas in the gas,

15. The apparatus of claim 12, wherein the first configuring module is further configured to increase the percentage of SCG guaranteed power allocation and decrease the percentage of MCG guaranteed power allocation when the number of cells successfully camping on the channel in the SCG increases; and/or, when the number of cells successfully occupying the channel in the SCG is reduced, increasing the percentage of the MCG guaranteed power allocation and reducing the percentage of the SCG guaranteed power allocation.

16. The apparatus of claim 15, wherein the first configuring module is further configured to increase the percentage of SCG guaranteed power allocation and decrease the percentage of MCG guaranteed power allocation when the number of cells successfully preempting the channel usage right by the SCG increases, and includes:

17. The apparatus of claim 15, wherein the first configuration module is further configured to adjust the SCG guaranteed power allocation percentage and/or the MCG guaranteed power allocation percentage at a subframe boundary when the MCG is synchronized with the SCG and a channel successfully seized by the SCG is at the subframe boundary.

18. The apparatus of claim 15, wherein the first configuration module is further configured to adjust the SCG guaranteed power allocation percentage and/or the MCG guaranteed power allocation percentage in a middle of a subframe when the MCG is asynchronous with the SCG or when the MCG is synchronous with the SCG and a channel successfully seized by the SCG is in the middle of a subframe; or, the first configuration module is further configured to adjust the MCG guaranteed power allocation percentage at a next subframe boundary of the MCG cell, and adjust the SCG guaranteed power allocation percentage at a next subframe boundary of the SCG cell.

19. The apparatus of claim 11,

20. The apparatus of claim 11 or 19, wherein the second configuration module is further configured to: