WO2018059040A1

WO2018059040A1 - Power distribution method and apparatus

Info

Publication number: WO2018059040A1
Application number: PCT/CN2017/091165
Authority: WO
Inventors: 高雪娟
Original assignee: 电信科学技术研究院
Priority date: 2016-09-29
Filing date: 2017-06-30
Publication date: 2018-04-05

Abstract

Disclosed in the present application are a power distribution method and apparatus, used for enabling simultaneous transmission by communication channels using TTI of different lengths by means of controlling the transmission power of the transmission channels respectively using TTI of different lengths to not surpass the permitted maximum transmission power of a device. The method comprises: determining the sum of the transmission powers of an uplink channel using a first TTI length for transmission and of an uplink channel using a second TTI length for transmission in a sub-frame; and when the sum surpasses the permitted maximum transmission power of a device, implementing power distribution according to a predetermined rule, such that the sum does not surpass the permitted maximum transmission power of the device.

Description

Power distribution method and device

This application is required to be submitted to the China Patent Office on September 29, 2016, the application number is 201610866527.1, the invention name is “a power distribution method and device” and the Chinese Patent Office submitted on March 24, 2017, the application number is 201710186416.0, invention The priority of the Chinese Patent Application, which is incorporated herein by reference in its entirety in its entirety in its entirety in its entirety in the the the the the the the the the

Technical field

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

Background technique

As the demand for mobile communication services changes, multiple organizations define higher user plane delay performance requirements for future mobile communication systems. One of the main methods to shorten the user's delay performance is to reduce the Transmission Time Interval (TTI) length, thus supporting short TTI transmission.

The existing Long Term Evolution (LTE) Frequency Division Duplex (FDD) system uses a frame structure (Frame Structure type 1, FS1), and its structure is as shown in FIG. 1. In the FDD system, the uplink and downlink transmissions use different carrier frequencies, and both the uplink and downlink transmissions use the same frame structure. On each carrier, a 10ms length radio frame contains 10 1ms subframes, and each subframe is divided into two 0.5ms long slots. The TTI duration of uplink and downlink data transmission is 1 ms.

The existing LTE Time Division Duplex (TDD) system uses a frame structure (Frame Structure type 2, FS2), as shown in FIG. 2. In a TDD system, uplink and downlink transmissions use different subframes or different time slots on the same frequency. Each 10 ms radio frame in FS2 consists of two 5 ms half frames, each of which contains five subframes of 1 ms length. The sub-frames in FS2 are classified into three types: downlink sub-frames, uplink sub-frames, and special sub-frames. Each special sub-frame consists of Downlink Pilot Time Slot (DwPTS), Guard Period (GP), and Uplink Pilot Time Slot (UpPTS) is composed of three parts. Each field includes at least one downlink subframe and at least one uplink subframe, and at most one special subframe.

A typical working mode of short TTI transmission, that is, a short TTI transmission shorter than 1 ms is included in a subframe structure defined in an existing LTE mechanism. The uplink supports a short physical uplink shared channel (sPUSCH) and a short physical uplink control channel (sPUCCH), and the sPUCCH can be used to carry at least an acknowledgement (ACK) of a downlink transmission using a short TTI. Non-confirmed (NACK) feedback information. The length of the short TTI may be two, three, four, seven orthogonal frequency division multiplexing (OFDM) or single carrier frequency division multiple access (SC-FDMA). Symbols, of course, do not exclude other cases where the number of symbols does not exceed 14 or the length of the time domain does not exceed 1 ms.

In summary, in the prior art, simultaneous transmission of short TTI and traditional TTI (1 ms TTI) cannot be realized. Since there is no clear method for how to perform power control when the transmission power is limited, for example, in the prior art, for example, The sPUCCH and the PUSCH/PUCCH (transmission of 1 ms TTI) are simultaneously transmitted in the same subframe, and the sPUSCH and the PUCCH/PUSCH are simultaneously transmitted in the same subframe.

Summary of the invention

The embodiment of the present application provides a power allocation method and apparatus for controlling simultaneous transmission of TTI transmission channels with different lengths by controlling transmission powers of different TTI transmission channels that do not exceed the maximum transmission power allowed by the equipment. To improve network performance.

A power allocation method provided by an embodiment of the present application includes:

Determining a sum of transmission powers of a channel transmitted using the first TTI length and a channel transmitted using the second TTI length in one subframe;

When the sum value exceeds the maximum transmit power allowed by the device, the power allocation is performed according to a predetermined rule to satisfy that the sum value does not exceed the maximum transmit power allowed by the device.

By this method, determining a sum of transmission powers of a channel transmitted using a first TTI length and a channel transmitted using a second TTI length in one subframe; when the sum value exceeds a maximum transmission power allowed by the device, according to a predetermined The rule performs power allocation to meet the maximum value of the maximum transmit power allowed by the device, so that simultaneous transmission of TTI transmission channels with different lengths can be realized, and the transmission power of the TTI transmission channel with different lengths is not exceeded. The maximum transmit power allowed increases network performance.

Preferably, the first TTI length is greater than the second TTI length.

Preferably, the first TTI length is 1 ms, the second TTI length is less than 1 ms, or both the first TTI length and the second TTI length are less than 1 ms.

Preferably, the channel is an uplink channel.

Preferably, the channel transmitted by using the first TTI length is an uplink control channel or an uplink shared channel; and the channel transmitted by using the second TTI length is an uplink control channel or an uplink shared channel.

Preferably, the performing power allocation according to a predetermined rule includes:

Preferably, the transmit power is allocated for the channel transmitted using the first TTI length, and the transmit power of the channel transmitted using the second TTI length is reduced;

Or, according to the initial transmission time of the channel transmitted by using the first TTI length in the same subframe, and the initial transmission time of the channel transmitted by using the second TTI length, respectively, using the first TTI length transmission The channel and the channel transmitted using the second TTI length are allocated transmit power.

Preferably, the first transmission time according to the channel transmitted by using the first TTI length in the same subframe, and the initial transmission time of the channel transmitted by using the second TTI length are respectively used first TTI length transmission The channel and the channel allocated by using the second TTI length transmission transmit power, specifically including:

When in the same subframe, the initial transmission time of the channel transmitted using the first TTI length is different from the initial transmission time of the channel transmitted using the second TTI length, or is transmitted using the first TTI length The transmission time difference between the initial transmission time of the channel and the initial transmission time of the channel transmitted using the second TTI length is greater than the preset threshold, and the transmission power is preferentially allocated to the channel at the beginning of the transmission time. The transmission power of the channel after the transmission time is started, or the PCM2 power control scheme in the LTE Rel-12 dual connection is reused.

Preferably, the first transmission time according to the channel transmitted by using the first TTI length in the same subframe, and the initial transmission time of the channel transmitted by using the second TTI length are respectively used first The channel for transmitting the TTI length and the channel for transmitting the transmission using the second TTI length, specifically include:

When in the same subframe, the initial transmission time of the channel transmitted using the first TTI length is the same as the initial transmission time of the channel transmitted using the second TTI length, or is transmitted using the first TTI length When the transmission time difference between the initial transmission time of the channel and the initial transmission time of the channel transmitted using the second TTI length does not exceed the preset threshold:

Preferably, the transmission power is allocated for the channel transmitted using the second TTI length, and the transmission power of the channel transmitted using the first TTI length is reduced;

Or, reuse the PCM1 power control scheme in the LTE Rel-12 dual connection;

Or, combining the PCM1 power control scheme in the LTE Rel-12 dual connection with the priority of the TTI length for power allocation;

Or, according to the type and/or UCI type of the channel transmitted using the first TTI length, and the type and/or UCI type of the channel transmitted using the second TTI length, respectively, using the first TTI length transmission The channel and the channel transmitted using the second TTI length are allocated transmit power.

Preferably, according to the type of channel and/or the UCI type of the bearer transmitted using the first TTI length, and the type of the channel and/or the UCI type of the bearer transmitted using the second TTI length, respectively The channel for transmitting the first TTI length and the channel for transmitting the transmission using the second TTI length, specifically include:

When the type of the channel transmitted using the first TTI length is different from the type of the channel transmitted using the second TTI length, the transmission power is preferentially allocated for the channel transmitted using the second TTI length, Transmit power of the channel transmitted by the first TTI length, or preferentially allocate transmit power to the uplink control channel, and reduce the transmit power of the uplink shared channel; or

When the type of the channel transmitted using the first TTI length is different from the type of the channel transmitted using the second TTI length, and the UCI type carried by the channel transmitted using the first TTI length, and the use of the When the UCI types of the channel carried by the two TTI lengths are different, the UCI priority of the bearer is used to allocate the transmit power according to the channel transmitted by using the first TTI length and the channel transmitted by using the second TTI length; or

a type of channel transmitted using the first TTI length, and a channel transmitted using the second TTI length Different types, and the UCI type carried by the channel transmitted using the first TTI length is the same as the UCI type carried by the channel transmitted using the second TTI length, and the channel transmitted using the first TTI length is similarly reduced. Transmit power and transmit power of a channel transmitted using the second TTI length; or,

When the type of the channel transmitted using the first TTI length is the same as the type of the channel transmitted using the second TTI length, the transmission power of the channel transmitted using the first TTI length is reduced proportionally and using the Transmit power of a channel transmitted by the second TTI length, or preferentially allocated transmit power for a channel transmitted using the second TTI length; or

When the type of the channel transmitted using the first TTI length is the same as the type of the channel transmitted using the second TTI length, and the UCI type carried by the channel transmitted using the first TTI length, and using the When the UCI types carried by the channel of the two TTI length transmission are different, the transmission power is allocated according to the UCI priority of the bearer for the channel transmitted by using the first TTI length and the channel transmitted by using the second TTI length.

Preferably, for a channel requiring reduced transmission power, the transmission power of all symbols of the channel is reduced.

A power distribution device provided by an embodiment of the present application includes:

a first unit, configured to determine a sum of transmission powers of a channel transmitted using a first TTI length and a channel transmitted using a second TTI length in one subframe;

And a second unit, configured to perform power allocation according to a predetermined rule when the sum value determined by the first unit exceeds a maximum transmit power allowed by the device, so that the sum value does not exceed a maximum transmit power allowed by the device.

Preferably, the first TTI length is greater than the second TTI length.

Preferably, the channel is an uplink channel.

Preferably, the first unit is specifically configured to:

Preferably, the first unit is based on a start transmission time of a channel transmitted using the first TTI length in the same subframe, and a start transmission time of a channel transmitted using the second TTI length, respectively The channel that is transmitted using the first TTI length and the channel that uses the second TTI length are allocated to transmit power, including:

When in the same subframe, use the first transmission time of the channel transmitted by the first TTI length, and use the second When the initial transmission time of the channel transmitted by the TTI length is different, or the transmission between the initial transmission time of the channel transmitted using the first TTI length and the initial transmission time of the channel transmitted using the second TTI length When the time difference is greater than the preset threshold, the transmission power is preferentially allocated for the channel with the first transmission start time, the transmission power of the channel after the initial transmission time is reduced, or the PCM2 power control scheme in the LTE Rel-12 dual connection is reused.

Or, reuse the PCM1 power control scheme in the LTE Rel-12 dual connection;

Or, according to the type of the channel transmitted using the first TTI length and/or the UCI type of the bearer, and the type of the channel transmitted using the second TTI length and/or the UCI type of the bearer, respectively, A channel transmitted by a TTI length and a channel transmitted using the second TTI length are allocated transmission power.

Preferably, the first unit is respectively used according to a type of channel and/or a UCI type transmitted using the first TTI length, and a type of channel and/or a UCI type transmitted using the second TTI length, respectively The channel for transmitting the first TTI length and the channel for transmitting the transmission using the second TTI length specifically include:

When the type of the channel transmitted using the first TTI length is different from the type of the channel transmitted using the second TTI length, and the UCI type carried by the channel transmitted using the first TTI length, and the use of the When the UCI types of the two TTI length transmission channels are the same, the channels that are transmitted using the first TTI length are equally reduced. Transmit power and transmit power of a channel transmitted using the second TTI length; or

The present application provides a power distribution apparatus including a processor, a memory, and a transceiver, wherein the transceiver receives and transmits data under control of the processor, and the memory stores a preset program, the processing The program reads the program in the memory, and executes the following process according to the program:

Determining a sum of transmission power of a channel transmitted using the first TTI length and a channel transmitted using the second TTI length in one subframe; when the sum exceeds a maximum transmit power allowed by the device, performing power allocation according to a predetermined rule To meet the stated value and not exceed the maximum transmit power allowed by the device.

Preferably, the first TTI length is greater than the second TTI length.

Preferably, the channel is an uplink channel.

Preferably, the processor is specifically configured to:

Preferably, the transmission power is allocated for the channel transmitted using the first TTI length, and the transmission power of the channel transmitted using the second TTI length is reduced; or, according to the channel transmitted using the first TTI length in the same subframe The initial transmission time, and the initial transmission time of the channel transmitted using the second TTI length, are respectively allocated for the channel transmitted using the first TTI length and the channel transmitted using the second TTI length.

Preferably, the processor uses the initial transmission time of the channel transmitted by using the first TTI length in the same subframe, and the initial transmission time of the channel transmitted by using the second TTI length, respectively. The channel that is transmitted by the first TTI length and the channel that uses the second TTI length are allocated to transmit power, and specifically includes:

When in the same subframe, the initial transmission time of the channel transmitted using the first TTI length is different from the initial transmission time of the channel transmitted using the second TTI length, or is transmitted using the first TTI length The transmission time difference between the initial transmission time of the channel and the initial transmission time of the channel transmitted using the second TTI length is greater than the pre- When the threshold is set, the transmission power is preferentially allocated for the channel with the first transmission start time, the transmission power of the channel after the initial transmission time is reduced, or the PCM2 power control scheme in the LTE Rel-12 dual connection is reused.

Or, reuse the PCM1 power control scheme in the LTE Rel-12 dual connection;

Or, according to the type of channel and/or the uplink control information UCI type transmitted using the first TTI length, and the type and/or UCI type of the channel transmitted using the second TTI length, respectively, using the first The channel transmitted by the TTI length and the channel transmitted using the second TTI length are allocated transmit power.

Preferably, the processor is configured according to a type of a channel transmitted using the first TTI length and/or a UCI type of the bearer, and a type of the channel transmitted using the second TTI length and/or a UCI type of the bearer. Allocating the transmit power for the channel that is transmitted by using the first TTI length and the channel that is transmitted by using the second TTI, respectively, specifically includes:

When the type of the channel transmitted using the first TTI length is different from the type of the channel transmitted using the second TTI length, and the UCI type carried by the channel transmitted using the first TTI length, and the use of the When the UCI types of the two TTI length transmission channels are the same, the transmission power of the channel transmitted using the first TTI length and the transmission power of the channel transmitted using the second TTI length are proportionally reduced; or

The power allocation method and apparatus provided by the embodiments of the present application determine a sum of transmit powers of a channel transmitted using a first TTI length and a channel transmitted using a second TTI length in one subframe; when the sum exceeds a device allowed When the maximum transmit power is used, the power allocation is performed according to a predetermined rule, so that the sum value does not exceed the maximum transmit power allowed by the device, so that simultaneous transmission of TTI transmission channels with different lengths can be realized, and TTIs with different lengths are guaranteed. The transmit power of the transport channel does not exceed the maximum transmit power allowed by the device, which improves network performance.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following drawings will be briefly described in the description of the embodiments. It is obvious that the drawings in the following description are only some embodiments of the present application, Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.

1 is a schematic diagram of a frame structure of Type 1 in the prior art;

2 is a schematic diagram of a frame structure type 2 (for 5 ms switch-point periodicity) in the prior art;

FIG. 3 is a schematic flowchart diagram of a power allocation method according to an embodiment of the present disclosure;

FIG. 4 is a schematic diagram of a case where transmission resources are overlapped when using TTI transmission channels of different lengths according to an embodiment of the present disclosure;

FIG. 5 is a schematic diagram of a second case in which transmission resources are overlapped when using TTI transmission channels of different lengths according to an embodiment of the present disclosure;

FIG. 6 is a schematic diagram of a third case in which transmission resources are overlapped when using TTI transmission channels of different lengths according to an embodiment of the present disclosure;

FIG. 7 is a schematic diagram of a fourth case in which transmission resources are overlapped when using TTI transmission channels of different lengths according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of a power distribution apparatus according to an embodiment of the present disclosure;

FIG. 9 is a schematic structural diagram of another power distribution apparatus according to an embodiment of the present disclosure.

detailed description

In a short TTI transmission, the TTI lengths of the sPUCCH and the sPUSCH are the same, but it is also possible to have both a short TTI and a legacy TTI (1ms TTI) transmission, for example, sPUCCH and PUSCH/PUCCH (1ms TTI transmission) are simultaneously transmitted in the same subframe, and The sPUSCH and the PUCCH/PUSCH are simultaneously transmitted in the same subframe. At this time, when the power is limited, power control is required, and the power allocation priority or principle is defined to ensure that the total power when the short TTI and the long TTI are simultaneously transmitted does not exceed The maximum transmit power allowed by the UE.

Referring to FIG. 3, a power allocation method provided by an embodiment of the present application includes:

S101. Determine a sum of transmission powers of a channel transmitted using the first TTI length and a channel transmitted using the second TTI length in one subframe.

The transmission resource that needs to be occupied by using the channel transmitted by using the first TTI length and the transmission resource that needs to be occupied by the channel transmitted by using the second TTI length have overlapping portions in the same subframe.

S102. When the sum value exceeds a maximum transmit power allowed by the device, perform power allocation according to a predetermined rule to satisfy that the sum value does not exceed a maximum transmit power allowed by the device.

Preferably, the first TTI length is greater than the second TTI length. The first TTI is, for example, a conventional TTI, which may also be referred to as a long TTI, and the second TTI, that is, the short TTI.

Preferably, the channel is an uplink channel.

Similarly, the embodiment of the present application is also applicable to transmission of a downlink channel.

When in the same subframe, the initial transmission time of the channel transmitted using the first TTI length is different from the initial transmission time of the channel transmitted using the second TTI length, or is transmitted using the first TTI length The transmission time difference between the initial transmission time of the channel and the initial transmission time of the channel transmitted using the second TTI length is greater than the preset threshold, and the transmission power is preferentially allocated to the channel at the beginning of the transmission time. The transmission power of the channel at the beginning of the transmission time, or the power control mode (PCM) of the Long Term Evolution (LTE) version-12 (Release-12, Rel-12) dual connection. Power control scheme.

Wherein, the PCM2 power control scheme is defined for an asynchronous situation, for example, power allocation can be performed according to the following priorities:

When power allocation is performed between carrier groups, power is preferentially allocated to the channel with the highest transmission time;

In addition, a minimum guaranteed power is defined for each carrier group, and each carrier group is allocated at least the power of the minimum guaranteed power level. On this basis, the remaining power is allocated according to the above priority manner; here, the reused PCM2 power control scheme can be reused only. In the foregoing priority allocation manner, the minimum guaranteed power is not defined, and all methods of the above PCM2 may be reused, that is, the remaining power is allocated according to the above priority on the basis of defining the minimum guaranteed power.

Or, reuse the PCM1 power control scheme in the LTE Rel-12 dual connection;

Or, according to the type of channel and/or uplink control information (UCI) type transmitted using the first TTI length, and the type and/or UCI type of the channel transmitted using the second TTI length, respectively The transmit power is allocated for a channel transmitted using the first TTI length and a channel transmitted using the second TTI length.

Among them, the PCM1 power control scheme is for synchronization (that is, the transmission time is aligned or does not exceed the preset threshold). For the right, the power is allocated according to the following priorities:

When performing power allocation between different carrier groups, PUCCH=bearing ACK/NACK-bearing PUCCH and/or PUSCH>P-CSI-bearing PUCCH carrying the SR, and/or PUSCH>priority of the PUSCH>SRS not carrying the UCI Sequence; when the same channel carries multiple UCIs, the priority of the channel is defined according to the UCI with the highest priority; for the channel carrying the same UCI, the power allocation according to the priority of the carrier group, including the carrier group of the PCC High priority;

In addition, a minimum guaranteed power is defined for each carrier group, and each carrier group is allocated at least a minimum guaranteed power level. On this basis, the remaining power is allocated according to the above priority manner; here, the reused PCM1 power control scheme can be reused only. In the above priority allocation mode, the minimum guaranteed power is not defined, and all methods of the PCM1 power control scheme in the above LTE Rel-12 dual connection may be reused, that is, the remaining power is allocated according to the above priority on the basis of defining the minimum guaranteed power.

Regarding the above, the PCM1 power control scheme in the LTE Rel-12 dual connection is combined with the priority of the TTI length for power allocation, for example, when PCM1 performs power allocation between different carrier groups, for carrying the same UCI The channel will be allocated according to the priority of the carrier group, and replaced with the power according to the priority of the TTI length, that is, the transmission power is preferentially allocated for the channel or carrier group transmitted using the second TTI length.

Of course, it is not excluded to replace the TTI priority with other priorities in the PCM1 for power allocation. For example, when performing power allocation between different carrier groups, power allocation is first performed between carrier groups according to the TTI priority, that is, The power is preferentially allocated to the carrier/carrier group of the second TTI length, and then the power allocation is performed according to the priority order of PUSCH>PUSCH carrying UCI>PUSCH>SRS not carrying UCI in one carrier group;

Further, for the foregoing PCM1 and PCM2, in the same carrier group, power allocation is performed according to the power allocation principle in a typical CA scenario, for example, PUCCH>PUI carrying UCI>PUSCH>SRS carrying no UCI priority order power Allocation; if there are also uplink channels of different TTI lengths in the same carrier group for simultaneous transmission, one of them may be selected to drop, or the channel of one of the longer TTIs may be punctured in the overlapping portion, thereby Avoid power superposition.

When the type of the channel transmitted using the first TTI length is different from the type of the channel transmitted using the second TTI length (in this case, regardless of the UCI type carried by the channel transmitted using the first TTI length, and using Whether the UCI type of the channel carried by the second TTI length is the same), the transmission power is preferentially allocated for the channel transmitted by using the second TTI length, and the transmission power of the channel transmitted by using the first TTI length is reduced, or Preferably, the transmit power is allocated to the uplink control channel, and the transmit power of the uplink shared channel is reduced; or

a type of channel transmitted using the first TTI length, and a channel transmitted using the second TTI length The first TTI is used according to the UCI priority of the bearer when the type of UCI carried by the channel transmitted by using the first TTI length is different from the UCI type carried by the channel transmitted by using the second TTI length. a channel that is transmitted in length and a channel that uses the second TTI length to transmit transmit power; or,

When the type of the channel transmitted using the first TTI length is the same as the type of the channel transmitted using the second TTI length (in this case, regardless of the UCI type carried by the channel transmitted using the first TTI length, and using Whether the UCI type of the channel carried by the second TTI length is the same), and proportionally reducing the transmission power of the channel transmitted using the first TTI length and the transmission power of the channel transmitted by using the second TTI length, or Preferably, the transmit power is allocated for the channel transmitted using the second TTI length; or

For example, on the user equipment (UE) side in the uplink direction (on the network side):

For any subframe, it is determined whether the sum of the transmit power of the uplink channel transmitted using the first TTI length and the uplink channel transmitted using the second TTI length in the overlapping transmission portion in the subframe exceeds the maximum transmit power allowed by the UE Wherein the overlapping transmission portion, that is, the uplink channel transmitted using the first TTI length and the transmission resource simultaneously used by the uplink channel transmitted using the second TTI length.

The first TTI length is greater than the second TTI length;

The first TTI has a length of 1 ms, and the second TTI has a short TTI of no more than 1 ms, for example, including 2, 3, 4, or 7 symbols;

The uplink channel is at least one of an uplink control channel and an uplink shared channel.

It should be noted that the technical solution provided by the embodiment of the present application may also be used for transmission of a downlink channel.

When it is determined that the sum of the transmit power of the uplink channel transmitted using the first TTI length and the uplink channel transmitted using the second TTI length in the overlapping transmission portion in the subframe exceeds the maximum transmit power allowed by the UE, according to a predetermined rule Or the priority is used to allocate the transmit power to ensure that the total transmit power of the overlapping transmission portion does not exceed the maximum transmit power allowed by the UE.

The predetermined rule or priority, for example:

Mode 1: It is always assumed that power is preferentially allocated to the uplink channel using the first TTI length transmission, that is, guaranteed use The transmit power of the uplink channel transmitted by the first TTI length is unchanged, and the transmit power of the uplink channel transmitted using the second TTI length is reduced;

Method 2:

When the uplink channel transmitted by using the first TTI length is different from the initial transmission time of the uplink channel using the second TTI length, the power is preferentially allocated to the uplink channel at the beginning of the initial transmission time (for example, using the first An uplink channel of a TTI length transmission, that is, ensuring that the uplink power of the uplink channel at the beginning of the initial transmission time is constant, and reducing the transmission power of the uplink channel after the initial transmission time;

When the uplink channel transmitted using the first TTI length is the same as the initial transmission time of the uplink channel transmitted using the second TTI length:

Method 2-1: Prioritize power allocation to the uplink channel using the second TTI length transmission, that is, ensure that the transmission power of the uplink channel transmitted using the second TTI length is unchanged, and reduce the transmission power of the uplink channel transmitted using the first TTI length. ;

Method 2-2: Priority allocation of power to the uplink control channel, that is, ensuring that the uplink control channel (whether using the first TTI transmission or the second TTI transmission) does not change the uplink shared channel (whether it is used or not) The first TTI is still using the transmit power of the second TTI;

Method 2-3: Equally reducing power for the same type of uplink channel, and performing power control on different types of uplink channels according to the above method 2-1 or method 2-2;

When the transmit power of an uplink channel is reduced, the transmit power of all symbols of the uplink channel is reduced.

Specific embodiment:

Taking the first TTI length as 1 ms, that is, one subframe, and the second TTI length being 2 symbols as an example;

Determining, by the UE, the target transmit power of the PUCCH/PUSCH in the current subframe according to the uplink power control parameter pre-configured for the first TTI length and the obtained Transmission Power Control (TPC);

Determining, by the UE, a target transmit power of the sPUCCH/sPUSCH in the current subframe according to the uplink power control parameter pre-configured for the second TTI length and the obtained TPC;

As shown in FIG. 4, it is assumed that the PUCCH and the sPUSCH overlap in the current subframe, and the start time is different. At this time, since the start times of the PUCCH and the sPUSCH are different, according to the time-first principle; the transmit power of the PUCCH is kept unchanged, and the sPUSCH is lowered. Transmit power until the total power of the overlapping portion does not exceed the maximum transmit power allowed by the UE;

Or, as shown in FIG. 5, it is assumed that the PUCCH and the sPUSCH overlap in the current subframe, and the start time is the same; at this time, since the start times of the PUCCH and the sPUSCH are the same, one implementation manner may follow the short TTI priority principle; and the sPUSCH is maintained. The transmit power is unchanged, and the transmit power of the PUCCH is reduced until the total power of the overlapping portion does not exceed the maximum transmit power allowed by the UE; another implementation manner may be in accordance with the uplink control channel prioritization principle; keeping the transmit power of the PUCCH unchanged, reducing The transmit power of the sPUSCH until the total power of the overlapping portion does not exceed the maximum transmit power allowed by the UE;

Or, as shown in FIG. 6, it is assumed that the sPUCCH and the PUSCH overlap in the current subframe, and the start time is the same; at this time, since the start times of the sPUCCH and the PUSCH are the same, one implementation manner can follow the short TTI priority principle; and the sPUCCH is maintained. The transmit power is unchanged, and the transmit power of the PUSCH is reduced until the total power of the overlapping portion does not exceed the maximum transmit power allowed by the UE; another implementation manner may be according to the uplink control channel prioritization principle; the same is to keep the transmit power of the sPUCCH unchanged. , reducing the transmit power of the PUSCH until the total power of the overlapping portion does not exceed the maximum transmit power allowed by the UE;

Or, as shown in FIG. 7, it is assumed that sPUSCH-1 and sPUSCH-2 in the current subframe overlap with the PUSCH at different symbol positions, respectively, and sPUSCH-1 is the same as the start time of the PUSCH, and the start of sPUSCH-2 and PUSCH Different moments;

For sPUSCH-1 and PUSCH, because the starting positions are the same, one implementation may follow the short channel priority principle; keep the transmit power of sPUSCH-1 unchanged, and reduce the transmit power of the PUSCH until the total power of the overlapping portion does not exceed the UE. The maximum transmit power allowed; another implementation may simultaneously reduce the transmit power of sPUSCH-1 and PUSCH in an equal proportional manner until the total power of the overlapping portion does not exceed the maximum transmit power allowed by the UE;

For sPUSCH-2 and PUSCH, the transmit power of the PUSCH is unchanged according to the time-priority principle because the start position is different. (At this time, the transmit power of the PUSCH is already the transmit power after the power control of the overlap with the sPUSCH-1. ), reducing the transmit power of sPUSCH-2 until the total power of the overlapping portion does not exceed the maximum transmit power allowed by the UE;

It should be noted that, in the foregoing embodiment, the short TTI transmission of only two symbols is taken as an example, and the short TTI transmission of other symbol lengths is the same; the uplink control channel of the overlapping transmission in the foregoing embodiment may be located on the same carrier, or The other sPUCCH/PUCCH/sPUSCH/PUSCH overlap is similar to that of the above case, and is not described here.

Corresponding to the above method, referring to FIG. 8, a power distribution apparatus according to an embodiment of the present application includes:

a first unit 11 configured to determine a sum of transmit powers of an uplink channel transmitted using a first TTI length and an uplink channel transmitted using a second TTI length in one subframe;

The second unit 12 is configured to perform power allocation according to a predetermined rule when the sum value determined by the first unit 11 exceeds a maximum transmit power allowed by the device, so that the sum value does not exceed a maximum transmit power allowed by the device.

Preferably, the first TTI length is greater than the second TTI length.

Preferably, the channel is an uplink channel.

Preferably, the first unit is specifically configured to:

Or, reuse the PCM1 power control scheme in the LTE Rel-12 dual connection;

Preferably, the first unit according to the type of channel and/or the UCI type of the bearer transmitted using the first TTI length, and the type of the channel and/or the UCI type of the bearer transmitted using the second TTI length And allocating the transmit power for the channel transmitted by using the first TTI length and the channel transmitted by using the second TTI length, specifically:

Referring to FIG. 9, another power distribution apparatus provided by an embodiment of the present application, for example, may be a UE, including:

The processor 600 is configured to read a program in the memory 620 and perform the following process:

Determining a sum of transmit power of an uplink channel transmitted using the first TTI length and an uplink channel transmitted using the second TTI length in one subframe;

Preferably, the first TTI length is greater than the second TTI length.

Preferably, the channel is an uplink channel.

Preferably, the processor 600 performs power allocation according to a predetermined rule, and specifically includes:

Preferably, the processor 600 is configured according to a start transmission time of a channel transmitted by using the first TTI length in the same subframe, and a start transmission time of a channel transmitted by using the second TTI length, respectively The channel that is transmitted using the first TTI length and the channel that uses the second TTI length are allocated to transmit power, including:

Or, reuse the PCM1 power control scheme in the LTE Rel-12 dual connection;

Preferably, the processor 600 is configured according to the type of the channel and/or the UCI type of the bearer transmitted using the first TTI length, and the type of the channel and/or the UCI type of the bearer transmitted using the second TTI length. And allocating the transmit power for the channel transmitted by using the first TTI length and the channel transmitted by using the second TTI length, specifically:

The transceiver 610 is configured to receive and transmit data under the control of the processor 600.

Wherein, the processor, the memory and the transceiver in FIG. 9 can be connected by a bus, and the bus architecture can include any number of interconnected buses and bridges, specifically represented by one or more processors and memories 620 represented by the processor 600. The various circuits of the memory are linked together. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein. Transceiver 610 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium. For different user equipments, the user interface 630 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

The processor 600 is responsible for managing the bus architecture and general processing, and the memory 620 can store data used by the processor 600 in performing operations.

Optionally, the processor 600 can be a central processing unit (CPU), dedicated integrated power Application Specific Integrated Circuit (ASIC), Field-Programmable Gate Array (FPGA) or Complex Programmable Logic Device (CPLD).

In summary, different power allocation priorities or principles are defined in the embodiment of the present application, and the total power when the short TTI and the long TTI are simultaneously transmitted does not exceed the maximum transmit power allowed by the UE.

Those skilled in the art will appreciate that embodiments of the present application can be provided as a method, system, or computer program product. Thus, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in combination of software and hardware. Moreover, the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

It will be apparent to those skilled in the art that various modifications and changes can be made in the present application without departing from the spirit and scope of the application. Thus, it is intended that the present invention cover the modifications and variations of the present invention.

Claims

A power distribution method, the method comprising:

Determining a sum of transmission powers of a channel transmitted using the first TTI length and a channel transmitted using the second TTI length in one subframe;

When the sum value exceeds the maximum transmit power allowed by the device, the power allocation is performed according to a predetermined rule to satisfy that the sum value does not exceed the maximum transmit power allowed by the device.
The method of claim 1 wherein the first TTI length is greater than the second TTI length.
The method according to claim 2, wherein the first TTI length is 1 ms, the second TTI length is less than 1 ms, or both the first TTI length and the second TTI length are less than 1 ms.
The method of claim 1 wherein said channel is an upstream channel.
The method according to claim 4, wherein the channel transmitted by using the first TTI length is an uplink control channel or an uplink shared channel; and the channel transmitted by using the second TTI length is an uplink control channel or an uplink shared channel. .
The method according to claim 2, wherein the performing power allocation according to a predetermined rule comprises:

Preferably, the transmit power is allocated for the channel transmitted using the first TTI length, and the transmit power of the channel transmitted using the second TTI length is reduced;

Or, according to the initial transmission time of the channel transmitted by using the first TTI length in the same subframe, and the initial transmission time of the channel transmitted by using the second TTI length, respectively, using the first TTI length transmission The channel and the channel transmitted using the second TTI length are allocated transmit power.
The method according to claim 6, wherein said starting transmission time of a channel transmitted using said first TTI length in the same subframe, and starting from a channel transmitted using said second TTI length The initial transmission time is respectively allocated to the channel transmitted by using the first TTI length and the channel transmitted by using the second TTI length, which specifically includes:

When in the same subframe, the initial transmission time of the channel transmitted using the first TTI length is different from the initial transmission time of the channel transmitted using the second TTI length, or is transmitted using the first TTI length The transmission time difference between the initial transmission time of the channel and the initial transmission time of the channel transmitted using the second TTI length is greater than the preset threshold, and the transmission power is preferentially allocated to the channel at the beginning of the transmission time. The transmission power of the channel at the lower end of the transmission time, or the power control mode PCM2 power control scheme in the long-term evolution version of the LTE Rel-12 dual connection.
The method of claim 6 wherein said using said first in said same subframe The initial transmission time of the channel transmitted by the TTI length, and the initial transmission time of the channel transmitted using the second TTI length, respectively, the channel transmitted using the first TTI length and the channel allocated using the second TTI length. Specifically, including:

When in the same subframe, the initial transmission time of the channel transmitted using the first TTI length is the same as the initial transmission time of the channel transmitted using the second TTI length, or is transmitted using the first TTI length When the transmission time difference between the initial transmission time of the channel and the initial transmission time of the channel transmitted using the second TTI length does not exceed the preset threshold, the transmission is preferentially allocated for the channel transmitted using the second TTI length. Power, reducing the transmit power of the channel transmitted using the first TTI length;

Or, reuse the PCM1 power control scheme in the LTE Rel-12 dual connection;

Or, combining the PCM1 power control scheme in the LTE Rel-12 dual connection with the priority of the TTI length for power allocation;

Or, according to the type of channel and/or the uplink control information UCI type transmitted using the first TTI length, and the type and/or UCI type of the channel transmitted using the second TTI length, respectively, using the first The channel transmitted by the TTI length and the channel transmitted using the second TTI length are allocated transmit power.
The method according to claim 8, wherein the type of channel transmitted using the first TTI length and/or the UCI type of the bearer, and the type of channel transmitted using the second TTI length and/or The UCI type that is carried by the channel that is transmitted by using the first TTI length and the channel that is transmitted by using the second TTI length, respectively, includes:

When the type of the channel transmitted using the first TTI length is different from the type of the channel transmitted using the second TTI length, the transmission power is preferentially allocated for the channel transmitted using the second TTI length, Transmit power of the channel transmitted by the first TTI length, or preferentially allocate transmit power to the uplink control channel, and reduce the transmit power of the uplink shared channel; or

When the type of the channel transmitted using the first TTI length is different from the type of the channel transmitted using the second TTI length, and the UCI type carried by the channel transmitted using the first TTI length, and the use of the When the UCI types of the channel carried by the two TTI lengths are different, the UCI priority of the bearer is used to allocate the transmit power according to the channel transmitted by using the first TTI length and the channel transmitted by using the second TTI length; or

When the type of the channel transmitted using the first TTI length is different from the type of the channel transmitted using the second TTI length, and the UCI type carried by the channel transmitted using the first TTI length, and the use of the When the UCI types of the two TTI length transmission channels are the same, the transmission power of the channel transmitted using the first TTI length and the transmission power of the channel transmitted using the second TTI length are proportionally reduced; or

When the type of the channel transmitted using the first TTI length is the same as the type of the channel transmitted using the second TTI length, the transmission power of the channel transmitted using the first TTI length is reduced proportionally and using the The transmit power of the channel transmitted by the second TTI length, or preferentially allocated for the channel transmitted using the second TTI length Shooting power; or,

When the type of the channel transmitted using the first TTI length is the same as the type of the channel transmitted using the second TTI length, and the UCI type carried by the channel transmitted using the first TTI length, and using the When the UCI types carried by the channel of the two TTI length transmission are different, the transmission power is allocated according to the UCI priority of the bearer for the channel transmitted by using the first TTI length and the channel transmitted by using the second TTI length.
The method according to any one of claims 6 to 9, wherein the transmission power of all symbols of the channel is reduced for a channel requiring reduction of transmission power.
A power distribution device, comprising:

a first unit, configured to determine a sum of transmission powers of a channel transmitted using a first TTI length and a channel transmitted using a second TTI length in one subframe;

And a second unit, configured to perform power allocation according to a predetermined rule when the sum value determined by the first unit exceeds a maximum transmit power allowed by the device, so that the sum value does not exceed a maximum transmit power allowed by the device.
The apparatus of claim 11 wherein said first TTI length is greater than said second TTI length.
The apparatus according to claim 12, wherein the first TTI length is 1 ms, the second TTI length is less than 1 ms, or both the first TTI length and the second TTI length are less than 1 ms.
The apparatus of claim 11 wherein said channel is an upstream channel.
The apparatus according to claim 14, wherein the channel transmitted by using the first TTI length is an uplink control channel or an uplink shared channel; and the channel transmitted by using the second TTI length is an uplink control channel or an uplink shared channel. .
The device according to claim 12, wherein the first unit is specifically configured to:

Preferably, the transmit power is allocated for the channel transmitted using the first TTI length, and the transmit power of the channel transmitted using the second TTI length is reduced;

Or, according to the initial transmission time of the channel transmitted by using the first TTI length in the same subframe, and the initial transmission time of the channel transmitted by using the second TTI length, respectively, using the first TTI length transmission The channel and the channel transmitted using the second TTI length are allocated transmit power.
The apparatus according to claim 16, wherein said first unit transmits based on a start transmission time of a channel transmitted using said first TTI length in the same subframe, and transmitted using said second TTI length The initial transmission time of the channel is respectively allocated to the channel transmitted by using the first TTI length and the channel transmitted by using the second TTI length, which specifically includes:

When in the same subframe, the initial transmission time of the channel transmitted using the first TTI length is different from the initial transmission time of the channel transmitted using the second TTI length, or is transmitted using the first TTI length The transmission time difference between the initial transmission time of the channel and the initial transmission time of the channel transmitted using the second TTI length is greater than the pre- When the threshold is set, the transmission power is preferentially allocated for the channel with the first transmission start time, the transmission power of the channel after the initial transmission time is reduced, or the power control mode PCM2 power control in the long-term evolution version of the LTE Rel-12 dual connection is reused. Program.
The apparatus according to claim 16, wherein said first unit transmits based on a start transmission time of a channel transmitted using said first TTI length in the same subframe, and transmitted using said second TTI length The initial transmission time of the channel is respectively allocated to the channel transmitted by using the first TTI length and the channel transmitted by using the second TTI length, which specifically includes:

When in the same subframe, the initial transmission time of the channel transmitted using the first TTI length is the same as the initial transmission time of the channel transmitted using the second TTI length, or is transmitted using the first TTI length When the transmission time difference between the initial transmission time of the channel and the initial transmission time of the channel transmitted using the second TTI length does not exceed the preset threshold:

Preferably, the transmission power is allocated for the channel transmitted using the second TTI length, and the transmission power of the channel transmitted using the first TTI length is reduced;

Or, reuse the PCM1 power control scheme in the LTE Rel-12 dual connection;

Or, combining the PCM1 power control scheme in the LTE Rel-12 dual connection with the priority of the TTI length for power allocation;

Or, according to the type of channel and/or the uplink control information UCI type transmitted using the first TTI length, and the type and/or UCI type of the channel transmitted using the second TTI length, respectively, using the first The channel transmitted by the TTI length and the channel transmitted using the second TTI length are allocated transmit power.
The apparatus according to claim 18, wherein said first unit transmits a channel according to a type of a channel transmitted using said first TTI length and/or a UCI type of a bearer, and a channel transmitted using said second TTI length The type and/or the UCI type of the bearer are respectively allocated to the channel transmitted by using the first TTI length and the channel transmitted by using the second TTI length, which specifically includes:

When the type of the channel transmitted using the first TTI length is different from the type of the channel transmitted using the second TTI length, the transmission power is preferentially allocated for the channel transmitted using the second TTI length, Transmit power of the channel transmitted by the first TTI length, or preferentially allocate transmit power to the uplink control channel, and reduce the transmit power of the uplink shared channel; or

When the type of the channel transmitted using the first TTI length is different from the type of the channel transmitted using the second TTI length, and the UCI type carried by the channel transmitted using the first TTI length, and the use of the When the UCI types of the channel carried by the two TTI lengths are different, the UCI priority of the bearer is used to allocate the transmit power according to the channel transmitted by using the first TTI length and the channel transmitted by using the second TTI length; or

When the type of the channel transmitted using the first TTI length is different from the type of the channel transmitted using the second TTI length, and the UCI type carried by the channel transmitted using the first TTI length, and the use of the Two TTI When the UCI types of the length-transmitted channels are the same, the transmission power of the channel transmitted using the first TTI length and the transmission power of the channel transmitted using the second TTI length are proportionally reduced; or

When the type of the channel transmitted using the first TTI length is the same as the type of the channel transmitted using the second TTI length, the transmission power of the channel transmitted using the first TTI length is reduced proportionally and using the Transmit power of a channel transmitted by the second TTI length, or preferentially allocated transmit power for a channel transmitted using the second TTI length; or

When the type of the channel transmitted using the first TTI length is the same as the type of the channel transmitted using the second TTI length, and the UCI type carried by the channel transmitted using the first TTI length, and using the When the UCI types carried by the channel of the two TTI length transmission are different, the transmission power is allocated according to the UCI priority of the bearer for the channel transmitted by using the first TTI length and the channel transmitted by using the second TTI length.
The apparatus according to any one of claims 16 to 19, characterized in that, for a channel requiring reduction of transmission power, the transmission power of all symbols of the channel is reduced.
A power distribution device, comprising: a processor, a memory, and a transceiver, wherein the transceiver receives and transmits data under control of the processor, and the memory stores a preset program, The processor reads the program in the memory and executes the following process according to the program:

Determining a sum of transmission powers of a channel transmitted using the first TTI length and a channel transmitted using the second TTI length in one subframe;

When the sum value exceeds the maximum transmit power allowed by the device, the power allocation is performed according to a predetermined rule to satisfy that the sum value does not exceed the maximum transmit power allowed by the device.
The apparatus of claim 21 wherein said first TTI length is greater than said second TTI length.
The apparatus according to claim 22, wherein the first TTI length is 1 ms, the second TTI length is less than 1 ms, or both the first TTI length and the second TTI length are less than 1 ms.
The apparatus of claim 21 wherein said channel is an upstream channel.
The apparatus according to claim 24, wherein the channel transmitted by using the first TTI length is an uplink control channel or an uplink shared channel; and the channel transmitted by using the second TTI length is an uplink control channel or an uplink shared channel. .
The device according to claim 22, wherein the processor is specifically configured to:

Preferably, the transmit power is allocated for the channel transmitted using the first TTI length, and the transmit power of the channel transmitted using the second TTI length is reduced;

Or, according to the initial transmission time of the channel transmitted by using the first TTI length in the same subframe, and the initial transmission time of the channel transmitted by using the second TTI length, respectively, using the first TTI length transmission The channel and the channel transmitted using the second TTI length are allocated transmit power.
The apparatus according to claim 26, wherein said processor transmits a start transmission time of a channel transmitted using said first TTI length in the same subframe, and a channel transmitted using said second TTI length The initial transmission time is respectively allocated to the channel transmitted by using the first TTI length and the channel transmitted by using the second TTI length, which specifically includes:

When in the same subframe, the initial transmission time of the channel transmitted using the first TTI length is different from the initial transmission time of the channel transmitted using the second TTI length, or is transmitted using the first TTI length The transmission time difference between the initial transmission time of the channel and the initial transmission time of the channel transmitted using the second TTI length is greater than the preset threshold, and the transmission power is preferentially allocated to the channel at the beginning of the transmission time. The transmission power of the channel at the lower end of the transmission time, or the power control mode PCM2 power control scheme in the long-term evolution version of the LTE Rel-12 dual connection.
The apparatus according to claim 26, wherein said processor transmits a start transmission time of a channel transmitted using said first TTI length in the same subframe, and a channel transmitted using said second TTI length The initial transmission time is respectively allocated to the channel transmitted by using the first TTI length and the channel transmitted by using the second TTI length, which specifically includes:

When in the same subframe, the initial transmission time of the channel transmitted using the first TTI length is the same as the initial transmission time of the channel transmitted using the second TTI length, or is transmitted using the first TTI length When the transmission time difference between the initial transmission time of the channel and the initial transmission time of the channel transmitted using the second TTI length does not exceed the preset threshold:

Preferably, the transmission power is allocated for the channel transmitted using the second TTI length, and the transmission power of the channel transmitted using the first TTI length is reduced;

Or, reuse the PCM1 power control scheme in the LTE Rel-12 dual connection;

Or, combining the PCM1 power control scheme in the LTE Rel-12 dual connection with the priority of the TTI length for power allocation;

Or, according to the type of channel and/or the uplink control information UCI type transmitted using the first TTI length, and the type and/or UCI type of the channel transmitted using the second TTI length, respectively, using the first The channel transmitted by the TTI length and the channel transmitted using the second TTI length are allocated transmit power.
The apparatus according to claim 28, wherein said processor is responsive to a type of channel transmitted using said first TTI length and/or a UCI type of a bearer, and a channel transmitted using said second TTI length And the UCI type of the type and/or the bearer, respectively, the channel that is transmitted by using the first TTI length and the channel that is transmitted by using the second TTI length, respectively, including:

When the type of the channel transmitted using the first TTI length is different from the type of the channel transmitted using the second TTI length, the transmission power is preferentially allocated for the channel transmitted using the second TTI length, The transmit power of the channel transmitted by the first TTI length, or the transmit power of the uplink control channel is preferentially allocated, and the uplink total is reduced. Enjoy the transmit power of the channel; or,

When the type of the channel transmitted using the first TTI length is different from the type of the channel transmitted using the second TTI length, and the UCI type carried by the channel transmitted using the first TTI length, and the use of the When the UCI types of the channel carried by the two TTI lengths are different, the UCI priority of the bearer is used to allocate the transmit power according to the channel transmitted by using the first TTI length and the channel transmitted by using the second TTI length; or

When the type of the channel transmitted using the first TTI length is different from the type of the channel transmitted using the second TTI length, and the UCI type carried by the channel transmitted using the first TTI length, and the use of the When the UCI types of the two TTI length transmission channels are the same, the transmission power of the channel transmitted using the first TTI length and the transmission power of the channel transmitted using the second TTI length are proportionally reduced; or

When the type of the channel transmitted using the first TTI length is the same as the type of the channel transmitted using the second TTI length, the transmission power of the channel transmitted using the first TTI length is reduced proportionally and using the Transmit power of a channel transmitted by the second TTI length, or preferentially allocated transmit power for a channel transmitted using the second TTI length; or

When the type of the channel transmitted using the first TTI length is the same as the type of the channel transmitted using the second TTI length, and the UCI type carried by the channel transmitted using the first TTI length, and using the When the UCI types carried by the channel of the two TTI length transmission are different, the transmission power is allocated according to the UCI priority of the bearer for the channel transmitted by using the first TTI length and the channel transmitted by using the second TTI length.
The apparatus according to any one of claims 26 to 29, characterized in that for a channel requiring a reduction in transmission power, the transmission power of all symbols of the channel is reduced.