WO2019095111A1

WO2019095111A1 - Method for adjusting uplink transmission power, user equipment and network device

Info

Publication number: WO2019095111A1
Application number: PCT/CN2017/110940
Authority: WO
Inventors: 杨宁
Original assignee: Oppo广东移动通信有限公司
Priority date: 2017-11-14
Filing date: 2017-11-14
Publication date: 2019-05-23
Also published as: CN110710278B; CN110710278A

Abstract

Disclosed are a method for adjusting an uplink transmission power, a user equipment (UE), a network device and a computer storage medium. The method comprises: when a UE needs to migrate from a first uplink carrier to a second uplink carrier, acquiring a power adjustment parameter from a network side; determining, based on the power adjustment parameter acquired from the network side and a first uplink transmission power for the UE to transmit uplink data on the first uplink carrier, a second uplink transmission power for transmitting data on the second uplink carrier; and transmitting data on the second uplink carrier based on the second uplink transmission power corresponding to the second uplink carrier.

Description

Method, user equipment and network equipment for adjusting uplink transmission power

Technical field

The present invention relates to the field of communication processing technologies, and in particular, to a method for adjusting uplink transmit power, a user equipment (UE), a network device, and a computer storage medium.

Background technique

At present, with the pursuit of speed, delay, high-speed mobility, energy efficiency and the diversity and complexity of business in the future, the 3GPP International Standards Organization has begun to develop 5G, and then enters the deployment and research of NR. In the early deployment of NR, complete NR coverage is difficult to obtain, so typical network coverage is wide-area LTE coverage and NR's island coverage model. The motivation for introducing the auxiliary uplink frequency SUL frequency is to improve the uplink coverage of the NR high frequency band.

Since the frequency of the uplink carrier of the SUL and the NR is different, it is necessary to transmit the uplink data with an appropriate uplink power. However, how to control which power the UE uses for transmission is a problem that needs to be solved.

Summary of the invention

To solve the above technical problem, an embodiment of the present invention provides a method for adjusting uplink transmit power, a user equipment (UE), a network device, and a computer storage medium.

A method for adjusting uplink transmit power, which is applied to user equipment, includes:

When the UE needs to migrate from the first uplink carrier to the second uplink carrier, the power adjustment parameter is obtained from the network side;

Determining data transmission on the second uplink carrier based on the power adjustment parameter obtained from the network side and the first uplink transmission power that the UE performs uplink data transmission on the first uplink carrier The second uplink transmit power sent;

And transmitting data on the second uplink carrier based on the second uplink transmit power corresponding to the second uplink carrier.

The embodiment of the invention provides a method for adjusting uplink transmit power, which is applied to a network device, and includes:

When it is determined that the user equipment UE needs to migrate from the first uplink carrier to the second uplink carrier, the power adjustment parameter is sent to the UE.

An embodiment of the present invention provides a UE, including:

a first communication unit, when the UE needs to migrate from the first uplink carrier to the second uplink carrier, obtain a power adjustment parameter from the network side;

The first processing unit determines a second uplink for performing data transmission on the second uplink carrier, based on the power adjustment parameter acquired from the network side, and the first uplink transmit power that the UE performs uplink data transmission on the first uplink carrier. Transmit power; performing data transmission on the second uplink carrier based on the second uplink transmit power corresponding to the second uplink carrier.

The embodiment of the invention provides a network device, including:

a second processing unit, when determining that the user equipment UE needs to migrate from the first uplink carrier to the second uplink carrier, sending, by using the second communication unit, a power adjustment parameter to the UE;

The second communication unit is configured to send a power adjustment parameter to the UE.

An embodiment of the present invention provides a UE, including: a processor and a memory for storing a computer program capable of running on the processor,

Wherein the processor is configured to perform the steps of the foregoing method when the computer program is run.

Embodiments of the present invention provide a network device, including: a processor and a memory for storing a computer program capable of running on a processor,

A computer storage medium provided by an embodiment of the present invention, the computer storage medium is stored There are computer executable instructions that, when executed, implement the aforementioned method steps.

In the technical solution of the embodiment of the present invention, when the UE needs to migrate from the first uplink carrier to the second uplink carrier, the power is adjusted according to the power adjustment parameter obtained from the network side, to obtain the second uplink carrier. The second uplink transmit power, and further data transmission. In this way, the UE uses the appropriate uplink power to transmit uplink data on different uplink carriers, thereby improving the reliability of data transmission, and effectively controlling uplink interference and providing system throughput.

DRAWINGS

FIG. 1 is a schematic flowchart of a method for adjusting uplink transmit power according to an embodiment of the present disclosure;

2 is a schematic diagram of a frequency band distribution according to an embodiment of the present invention;

3 is a schematic structural diagram of a user equipment according to an embodiment of the present invention;

4 is a schematic structural diagram of a network device according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a hardware architecture according to an embodiment of the present invention.

Detailed ways

The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Embodiment 1

An embodiment of the present invention provides a method for adjusting an uplink transmit power, which is applied to a user equipment (UE, User Equipment), as shown in FIG. 1 , and includes:

Step 101: When the UE needs to migrate from the first uplink carrier to the second uplink carrier, obtain a power adjustment parameter from the network side.

Step 102: Determine a second uplink transmit power for performing data transmission on the second uplink carrier, based on the power adjustment parameter obtained from the network side, and the first uplink transmit power that the UE performs uplink data transmission on the first uplink carrier. ;

Step 103: Perform data transmission on the second uplink carrier based on the second uplink transmit power corresponding to the second uplink carrier.

Here, the first uplink carrier is different from the second uplink carrier. In this embodiment, the first uplink carrier may be lower than the frequency of the second uplink carrier, or the first uplink carrier may be higher than the frequency of the second uplink carrier. .

Regarding how to obtain power adjustment parameters, this embodiment can provide two methods, as follows:

method one,

The obtaining power adjustment parameters from the network side includes:

Obtaining, in the configuration information of the RRC (Radio Resource Control), the power adjustment parameter, where the power adjustment parameter includes: power offset, and/or power offset range.

Correspondingly, based on different power adjustment parameters, in the foregoing manner, the determining, based on the power adjustment parameter obtained from the network side, and the first uplink transmit power of the uplink transmission by the UE on the first uplink carrier, The second uplink transmit power for performing data transmission on the two uplink carriers may include:

Obtaining a power offset from a power adjustment parameter obtained from a network side;

The first uplink transmit power that is sent by the UE to the uplink data on the first uplink carrier is added or subtracted from the power offset to obtain a second uplink transmit power for performing uplink data transmission on the second uplink carrier.

The first uplink transmit power for performing uplink data transmission on the first uplink carrier may be understood as the transmit power when the first uplink carrier performs the last data packet transmission, as the first uplink transmit power.

The power offset can be set equal to the uplink transmit power of the two carriers. Of course, it can be set to other values, and it is not exhaustive here.

Configuring the power offset or power offset of two carriers during migration in RRC Wai. For example, as shown in FIG. 2, the current first uplink carrier is carrier 1, and the current scheduling requires the UE to transmit uplink on carrier 2 (ie, the second uplink carrier);

At this time, the uplink power of the transmission of the data packet on carrier 2 = the uplink power + power offset of the transmission of the last data packet on carrier 1. This power offset is semi-statically configured in RRC.

It is also understood that, when the first uplink carrier is higher than the second uplink carrier, the foregoing processing may be: performing, by using the first uplink transmit power of the uplink data transmission by the UE on the first uplink carrier, and the power offset. Subtracting, the second uplink transmit power for uplink data transmission on the second uplink carrier is obtained. At this time, the second uplink power of the second uplink carrier is the uplink power-power offset of the transmission of the last data packet on the first uplink carrier.

Or determining, according to the power adjustment parameter acquired from the network side, and the first uplink transmit power that the UE performs uplink data transmission on the first uplink carrier, determining a second uplink transmission for performing data transmission on the second uplink carrier. Power can also include:

Extracting a range of power offsets from power adjustment parameters obtained from the network side;

Selecting a target power offset from the range of power offsets;

Adding or subtracting the first uplink transmit power of the uplink data transmission by the UE to the first uplink carrier, and adding or subtracting the target uplink power offset, to obtain a second uplink transmit power for performing uplink data transmission on the second uplink carrier. .

Since the frequencies of the two uplink carriers are different, the uplink transmission power of the UE is required to be different. So when the uplink transmission of the UE moves from one UL carrier to another, the initial UL transmit power setting on the new UL carrier at this time:

That is to say, when the range of the power offset is configured, the terminal randomly selects an offset value for power adjustment within the range of the configured power offset, and the adjustment formula is as above.

Method 2,

The power adjustment parameter is obtained in the downlink control information DCI sent from the network side, where the power adjustment parameter includes: a power offset.

Since the DCI can be changed at any time, the currently applicable power offset can be delivered in the DCI without the need for pre-range configuration.

Determining, according to the power adjustment parameter obtained from the network side, and the first uplink transmit power that the UE performs uplink data transmission on the first uplink carrier, determining a second uplink transmit power for performing data transmission on the second uplink carrier, include:

In the DCI, the power offset of the two carriers during the migration process is indicated. For example, the current uplink carrier is the carrier 1. The current scheduling requires the UE to transmit the uplink on the carrier 2, and the carrier 1 frequency is lower than the carrier 2 frequency. The uplink power of the transmission of the first data packet on carrier 2 = the uplink power + power offset of the transmission of the last data packet on carrier 1. This power offset is given in the scheduling information DCI of the first packet on carrier 2.

Conversely, when the frequency of carrier 1 is higher than the frequency of carrier 2, the uplink power of the transmission of the first data packet on carrier 2 = the uplink power-power offset of the transmission of the last data packet on carrier 1.

It can be seen that, by adopting the foregoing solution, when the UE needs to migrate from the first uplink carrier to the second uplink carrier, the power is adjusted according to the power adjustment parameter obtained from the network side, to obtain the first transmission on the second uplink carrier. Two uplink transmit powers, and then data transmission. In this way, the UE uses the appropriate uplink power to transmit uplink data on different uplink carriers, thereby improving the reliability of data transmission, and effectively controlling uplink interference and providing system throughput.

Embodiment 2

An embodiment of the present invention provides a method for adjusting uplink transmit power, which is applied to a network device, and includes: when determining that a user equipment UE needs to migrate from a first uplink carrier to a second uplink carrier, The UE transmits a power adjustment parameter.

Regarding the transmission power adjustment parameter, this embodiment can provide two methods, as follows:

method one,

The sending the power adjustment parameter to the UE includes:

Transmitting, by the radio resource, RRC configuration information, the power adjustment parameter to the UE;

The power adjustment parameter includes: a power offset, and/or a range of power offsets.

The range of power offset or power offset of the two carriers during the migration process is configured in RRC. For example, as shown in FIG. 2, the current first uplink carrier is carrier 1, and the current scheduling requires the UE to transmit uplink on carrier 2 (ie, the second uplink carrier);

When the range of the power offset is configured, the terminal randomly selects an offset value for power adjustment within the range of the configured power offset, and the adjustment formula is as above.

Method 2,

The sending the power adjustment parameter to the UE includes:

Transmitting, by the downlink control information DCI, a power adjustment parameter to the UE, where the function is The power offset is included in the rate adjustment parameter.

Since the DCI can be changed on the fly, the currently applicable power offset can be delivered in the DCI without the need for pre-range configuration.

Embodiment 3

An embodiment of the present invention provides a User Equipment (UE), as shown in FIG. 3, including:

The first communication unit 31 obtains a power adjustment parameter from the network side when the UE needs to migrate from the first uplink carrier to the second uplink carrier.

The first processing unit 32 determines, according to the power adjustment parameter acquired from the network side, the first uplink transmit power that the UE performs uplink data transmission on the first uplink carrier, and determines the second data transmission on the second uplink carrier. Uplink transmit power; performing data transmission on the second uplink carrier based on the second uplink transmit power corresponding to the second uplink carrier.

method one,

The first communication unit 31 acquires the power adjustment parameter from the configuration information of the radio resource control (RRC) sent from the network side, where the power adjustment parameter includes: a power offset, And/or, the range of power offsets.

The first processing unit 32 obtains a power offset from the power adjustment parameters acquired by the network side;

At this time, the uplink power of the transmission of the data packet on carrier 2 = the last data on carrier 1 The uplink power + power offset of the packet's transmission. This power offset is semi-statically configured in RRC.

The first processing unit 32 extracts a range of power offsets from power adjustment parameters acquired by the network side;

Selecting a target power offset from the range of power offsets;

Method 2,

The first communication unit acquires the power adjustment parameter from the downlink control information DCI sent from the network side, where the power adjustment parameter includes: a power offset.

a first processing unit, acquiring a power offset from a power adjustment parameter acquired by the network side;

Embodiment 4

An embodiment of the present invention provides a network device, as shown in FIG. 4, including:

The second processing unit 41, when determining that the user equipment UE needs to migrate from the first uplink carrier to the second uplink carrier, send a power adjustment parameter to the UE by using the second communication unit;

The second communication unit 42 is configured to send a power adjustment parameter to the UE.

method one,

The second communication unit 42 sends the power adjustment parameter to the UE by using radio resource control RRC configuration information;

Method 2,

The second communication unit 42 sends a power adjustment parameter to the UE by using downlink control information DCI, where the power adjustment parameter includes a power offset.

The embodiment of the present invention further provides a hardware component architecture of the user equipment or the network device. As shown in FIG. 5, the method includes at least one processor 51, a memory 52, and at least one network interface 53. The various components are coupled together by a bus system 54. It will be appreciated that bus system 54 is used to implement connection communication between these components. The bus system 54 includes, in addition to the data bus, a power bus, a control bus, and a status signal bus. However, for clarity of description, various buses are labeled as bus system 54 in FIG.

It is to be understood that the memory 52 in the embodiments of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.

In some embodiments, memory 52 stores elements, executable modules or data structures, or a subset thereof, or their extension set:

Operating system 521 and application 522.

The processor 51 is configured to be able to process the foregoing Embodiment 1 or Embodiment 2 The method steps are not repeated here.

The embodiment of the present invention provides a computer storage medium, where the computer storage medium stores computer executable instructions, and when the computer executable instructions are executed, the method steps of the first embodiment or the second embodiment are implemented.

Embodiments of the Invention The above apparatus may be stored in a computer readable storage medium if it is implemented in the form of a software function module and sold or used as a standalone product. Based on such understanding, the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions. A computer device (which may be a personal computer, server, or network device, etc.) is caused to perform all or part of the methods described in various embodiments of the present invention. The foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read only memory (ROM), a magnetic disk, or an optical disk. Thus, embodiments of the invention are not limited to any specific combination of hardware and software.

Correspondingly, an embodiment of the present invention further provides a computer storage medium, wherein a computer program is configured, and the computer program is configured to execute a data scheduling method according to an embodiment of the present invention.

While the preferred embodiments of the present invention have been disclosed for purposes of illustration, those skilled in the art will recognize that various modifications, additions and substitutions are possible, and the scope of the invention should not be limited to the embodiments described above.

Claims

A method for adjusting uplink transmit power is applied to a user equipment UE, including:

When the UE needs to migrate from the first uplink carrier to the second uplink carrier, the power adjustment parameter is obtained from the network side;

Determining, according to the power adjustment parameter obtained from the network side, and the first uplink transmit power that the UE performs uplink data transmission on the first uplink carrier, determining a second uplink transmit power for performing data transmission on the second uplink carrier;

And transmitting data on the second uplink carrier based on the second uplink transmit power corresponding to the second uplink carrier.
The method of claim 1, wherein the obtaining power adjustment parameters from the network side comprises:

The power adjustment parameter is obtained from the configuration information of the radio resource control RRC sent by the network side, where the power adjustment parameter includes: a power offset, and/or a range of power offset.
The method according to claim 2, wherein the determining the second uplink carrier based on the power adjustment parameter acquired from the network side and the first uplink transmission power that the UE performs uplink data transmission on the first uplink carrier The second uplink transmit power for performing data transmission, including:

Obtaining a power offset from a power adjustment parameter obtained from a network side;

The first uplink transmit power that is sent by the UE to the uplink data on the first uplink carrier is added or subtracted from the power offset to obtain a second uplink transmit power for performing uplink data transmission on the second uplink carrier.
The method according to claim 2, wherein the determining the second uplink carrier based on the power adjustment parameter acquired from the network side and the first uplink transmission power that the UE performs uplink data transmission on the first uplink carrier The second uplink transmit power for performing data transmission, including:

Extracting a range of power offsets from power adjustment parameters obtained from the network side;

Selecting a target power offset from the range of power offsets;

Adding or subtracting the first uplink transmit power of the uplink data transmission by the UE to the first uplink carrier, and adding or subtracting the target uplink power offset, to obtain a second uplink transmit power for performing uplink data transmission on the second uplink carrier. .
The method of claim 1, wherein the obtaining power adjustment parameters from the network side comprises:

The power adjustment parameter is obtained in the downlink control information DCI sent from the network side, where the power adjustment parameter includes: a power offset.
The method according to claim 5, wherein the determining the second uplink carrier based on the power adjustment parameter acquired from the network side and the first uplink transmission power that the UE performs uplink data transmission on the first uplink carrier The second uplink transmit power for performing data transmission, including:

Obtaining a power offset from a power adjustment parameter obtained from a network side;

The first uplink transmit power that is sent by the UE to the uplink data on the first uplink carrier is added or subtracted from the power offset to obtain a second uplink transmit power for performing uplink data transmission on the second uplink carrier.
A method for adjusting uplink transmit power, applied to a network device, including:

When it is determined that the user equipment UE needs to migrate from the first uplink carrier to the second uplink carrier, the power adjustment parameter is sent to the UE.
The method of claim 7, wherein the transmitting the power adjustment parameter to the UE comprises:

Transmitting, by the radio resource, RRC configuration information, the power adjustment parameter to the UE;

The power adjustment parameter includes: a power offset, and/or a range of power offsets.
The method of claim 7, wherein the transmitting the power adjustment parameter to the UE comprises:

Transmitting, by the downlink control information DCI, a power adjustment parameter to the UE, where the power adjustment parameter includes a power offset.
A UE, including:

a first communication unit, when the UE needs to migrate from the first uplink carrier to the second uplink carrier, obtain a power adjustment parameter from the network side;

The first processing unit determines a second uplink for performing data transmission on the second uplink carrier, based on the power adjustment parameter acquired from the network side, and the first uplink transmit power that the UE performs uplink data transmission on the first uplink carrier. Transmit power; performing data transmission on the second uplink carrier based on the second uplink transmit power corresponding to the second uplink carrier.
The UE according to claim 10, wherein the first communication unit acquires the power adjustment parameter from the configuration information of the radio resource control RRC sent by the network side, where the power adjustment parameter includes: Power offset, and/or, range of power offsets.
The UE according to claim 11, wherein the first processing unit acquires a power offset from a power adjustment parameter acquired by the network side, and performs a first uplink transmission of the uplink data transmission by the UE on the first uplink carrier. The power is added or subtracted from the power offset to obtain a second uplink transmit power for uplink data transmission on the second uplink carrier.
The UE according to claim 11, wherein the first processing unit extracts a range of power offsets from power adjustment parameters acquired by a network side; and selects a target power offset from a range of the power offsets; The first uplink transmit power that is sent by the UE on the first uplink carrier for uplink data is added or subtracted from the target power offset to obtain a second uplink transmit power for performing uplink data transmission on the second uplink carrier.
The UE according to claim 10, wherein the first communication unit acquires the power adjustment parameter from a downlink control information DCI sent from a network side, where the power adjustment parameter includes: a power offset .
The UE of claim 14, wherein the first processing unit is from a network Acquiring a power offset in the power adjustment parameter obtained by the side; adding, by subtracting or subtracting, the first uplink transmit power that is sent by the UE on the first uplink carrier for uplink data, to obtain the second uplink carrier The second uplink transmit power for uplink data transmission.
A network device, including:

a second processing unit, when determining that the user equipment UE needs to migrate from the first uplink carrier to the second uplink carrier, sending, by using the second communication unit, a power adjustment parameter to the UE;

The second communication unit is configured to send a power adjustment parameter to the UE.
The network device according to claim 16, wherein the second communication unit sends the power adjustment parameter to the UE by using radio resource control RRC configuration information;

The power adjustment parameter includes: a power offset, and/or a range of power offsets.
The network device according to claim 16, wherein the second communication unit sends a power adjustment parameter to the UE by using downlink control information DCI; wherein the power adjustment parameter includes a power offset.
A UE includes: a processor and a memory for storing a computer program capable of running on the processor,

Wherein the processor is operative to perform the steps of the method of any of claims 1-6 when the computer program is run.
A network device comprising: a processor and a memory for storing a computer program capable of running on the processor,

Wherein the processor is operative to perform the steps of the method of any one of claims 7-9 when the computer program is run.
A computer storage medium storing computer executable instructions that, when executed, implement the method steps of any of claims 1-9.