WO2019169624A1

WO2019169624A1 - Data transmission method and device

Info

Publication number: WO2019169624A1
Application number: PCT/CN2018/078571
Authority: WO
Inventors: 林亚男; 张治�; 沈嘉
Original assignee: Oppo广东移动通信有限公司
Priority date: 2018-03-09
Filing date: 2018-03-09
Publication date: 2019-09-12
Also published as: CN111418237A; CN111418237B

Abstract

Provided in the present invention are a data transmission method and device. In one aspect, according to the embodiments of the present invention, a terminal transmits target information to a network device, the target information being used to indicate relevant information for the terminal to transmit data using a target transmit power as the maximum transmit power, so that the network device may determine, according to the target information, that the terminal transmits data using the target transmit power as the maximum transmit power. Since the terminal may actively inform the network device of the maximum transmit power that may be used by the terminal, it is possible to effectively prevent the SAR value of a high-power terminal from exceeding a standard.

Description

Data transmission method and device

Technical field

The present invention relates to data transmission technologies, and in particular, to a data transmission method and apparatus.

Background technique

In a new radio (NR) system, such as a 5G application, since the uplink and downlink time slot ratio is no longer a fixed mode, but a dynamically adjustable mode, it is not possible to simply define certain uplink and downlink time slots. The ratio cannot use high power to avoid the high specific power Absorption Ratio (SAR) value exceeding the standard.

Therefore, it is urgent to provide a new data transmission method to avoid the problem that the SAR value of the high power terminal exceeds the standard.

Summary of the invention

Aspects of the present invention provide a data transmission method and apparatus for avoiding the problem of a SAR value exceeding a high power terminal.

An aspect of the present invention provides a data transmission method, including:

The terminal sends the target information to the network device, where the target information is used to indicate related information that the terminal uses the target transmit power as the maximum transmit power for data transmission.

In another aspect of the present invention, another data transmission method is provided, including:

The network device receives the target information sent by the terminal, where the target information is used to indicate related information that the terminal uses the target transmit power as the maximum transmit power for data transmission;

The network device determines, according to the target information, that the terminal uses the target transmit power as the maximum transmit power for data transmission.

In another aspect of the invention, a data transmission apparatus is provided, comprising:

And a sending unit, configured to send, to the network device, target information, where the target information is used to indicate related information that the terminal uses the target sending power as the maximum sending power for data transmission.

In another aspect of the present invention, there is provided another data transmission apparatus comprising:

a receiving unit, configured to receive target information sent by the terminal, where the target information is used to indicate related information that the terminal uses the target sending power as the maximum sending power for data transmission;

And a determining unit, configured to determine, according to the target information, that the terminal uses the target transmit power as the maximum transmit power for data transmission.

According to the foregoing technical solution, in one aspect, the embodiment of the present invention sends the target information to the network device by using the terminal, where the target information is used to instruct the terminal to use the target transmit power as the maximum transmit power for data transmission, so that the The network device can determine, according to the target information, that the terminal uses the target transmit power as the maximum transmit power for data transmission, and the terminal can actively notify the network device of the maximum transmit power that can be used by the terminal, so that the terminal can effectively avoid high The problem of the SAR value of the power terminal exceeding the standard.

According to the foregoing technical solution, on the other hand, the embodiment of the present invention receives the target information sent by the terminal by using the network device, where the target information is used to indicate that the terminal uses the target transmit power as the maximum transmit power for data transmission, so that The network device can determine, according to the target information, that the terminal uses the target transmit power as the maximum transmit power for data transmission, and the terminal can actively notify the network device of the maximum transmit power that can be used by the terminal, so that the network device can effectively Avoid the problem that the SAR value of the high power terminal exceeds the standard.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description are the present invention. For some embodiments, other drawings may be obtained from those of ordinary skill in the art in light of the inventive workability.

FIG. 1 is a schematic flowchart of a data transmission method according to an embodiment of the present invention;

2 is a schematic flowchart of another data transmission method according to another embodiment of the present invention;

3 is a schematic structural diagram of a data transmission apparatus according to another embodiment of the present invention;

FIG. 4 is a schematic structural diagram of another data transmission apparatus according to another embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is a partial embodiment of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The term "and/or" in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and / or B, which may indicate that A exists separately, and both A and B exist, respectively. B these three situations. In addition, the character "/" in this article generally indicates that the contextual object is an "or" relationship.

FIG. 1 is a schematic flowchart of a data transmission method according to an embodiment of the present invention, as shown in FIG. 1 .

The terminal sends the target information to the network device, where the target information is used to instruct the terminal to use the target transmit power as the maximum transmit power for data transmission.

In this embodiment, the terminal may determine a target transmit power according to the current SAR value of the terminal and the preset maximum SAR value, so as to prevent the SAR value of the terminal from exceeding the standard. The target transmission power may be less than or equal to a maximum transmission power Pmax that the terminal can use.

Optionally, in a possible implementation manner of this embodiment, in 101, the terminal may specifically send the target information to the network device by using a physical uplink channel.

In a specific implementation process, the terminal may specifically send the target information to the network device by using a Physical Uplink Control Channel (PUCCH).

Specifically, the PUCCH may be specifically a PUCCH format 0 or a PUCCH format 1 or a PUCCH format 2 or a PUCCH format 3 or a PUCCH format 4, which is not specifically limited in this embodiment.

In another specific implementation process, the terminal sends the target information to the network device by using a Physical Uplink Shared Channel (PUSCH).

Specifically, the target information may be mapped to the PUSCH by means of a puncture, or the data carried in the PUSCH may be rate matched, so that the data is not mapped to the target information. On the resource element (RE) occupied.

Optionally, in a possible implementation manner of this embodiment, in 101, the terminal may specifically send the target information to the network device in a specified period, or may not be in a specified period, but The target information is sent to the network device when the transmission is required, which is not specifically limited in this embodiment.

Optionally, in a possible implementation manner of this embodiment, in 101, the terminal may specifically send the target information to the network device in a first time unit M, where the M is An integer greater than or equal to 1. Then, the terminal may start to use the target transmit power as the maximum transmit power for data transmission after the second time unit M+K, where the K is a pre-configured integer greater than or equal to 1.

The first time unit and the second time unit may be time slots, or may be a subframe, or may be a symbol, which is not specifically limited in this embodiment.

In this implementation manner, after the terminal sends the target information to the network device, the related information indicated by the target information may take effect immediately, or may be effective after being separated by K-1 time units, and this embodiment does not perform special limited.

Optionally, in a possible implementation manner of this embodiment, in 101, the terminal may specifically use the target sequence to carry the target information. The terminal can then send the target sequence to the network device.

In this implementation manner, the terminal may specifically map the target information to a corresponding target sequence, or may further modulate the target information using the target sequence, so that the target information may be carried on the target sequence. The terminal can then send the target sequence to the network device.

The different target information may correspond to different target sequences, and the different target sequences may be orthogonal, uncorrelated or low-correlation, which is not specifically limited in this embodiment.

Optionally, in a possible implementation manner of this embodiment, in 101, the target information that the terminal sends to the network device may include, but is not limited to, maximum transmit power indication information and target transmit power effective time. At least one of the information is not particularly limited in this embodiment.

In a specific implementation process, the target information sent by the terminal to the network device may include only the maximum transmit power indication information.

The maximum transmit power indication information is used to indicate the target transmit power.

In the implementation process, before 101, the terminal may further select an optional maximum transmit power from the at least one optional maximum transmit power as the target transmit power.

Specifically, the terminal may specifically select an optional maximum transmit power from the at least one selectable maximum transmit power according to the current SAR value of the terminal and the preset maximum SAR value. The target transmits power to prevent the SAR value of the terminal from exceeding the standard.

The at least one optional maximum transmit power may be configured by the network device.

Specifically, the terminal may receive at least one optional maximum transmit power that is sent by the network device by using Downlink Control Information (DCI), high layer signaling, or system broadcast message.

For example, the high-level signaling may be a radio resource control (RRC) message, and the at least one optional maximum transmit power may be carried by an information element (IE) in an RRC message. The RRC message may be an RRC message in the prior art, for example, an RRC CONNECTION RECONFIGURATION message, and the like, which is not limited in this embodiment, and the IE of the existing RRC message is extended to carry the at least An optional maximum transmit power, or the RRC message may also be an RRC message different from that existing in the prior art.

Or, for example, the high-layer signaling may be a Media Access Control (MAC) Control Element (CE) message, and specifically, the at least one optional one may be carried by adding a new MAC CE message. Maximum transmit power.

Or, for example, the at least one optional maximum transmit power may be carried by the existing Master Information Block (MIB) or the System Information Block (SIB) in the system broadcast message, or Adding a new SIB carries the at least one optional maximum transmit power.

It can be understood that the at least one optional maximum transmit power can also be agreed by a protocol.

In the implementation process, the terminal may specifically determine, according to the correspondence between the at least one selectable maximum transmit power and the transmission resource, and the target transmit power, that the target transmit power is corresponding to Transfer resources. Then, the terminal may send the target information to the network device by using a transmission resource corresponding to the target transmission power.

Taking PUCCH resources (including time domain resources, frequency domain resources, and code domain resources) as transmission resources as an example, Table 1 shows the correspondence between N optional maximum transmission powers and transmission resources.

Table 1 Correspondence between N optional maximum transmit power and transmission resources

PUCCH资源PUCCH resources	可选的最大发送功率Optional maximum transmit power
PUCCH资源1PUCCH resource 1	最大发送功率P1Maximum transmission power P1
PUCCH资源2PUCCH Resources 2	最大发送功率P2Maximum transmit power P2
……......	……......
PUCCH资源NPUCCH resource N	最大发送功率PNMaximum transmit power PN

In the correspondence between the at least one optional maximum transmit power and the transmission resource, the transmission resource corresponding to each of the at least one optional maximum transmit power may be used by the network. Device Configuration.

Specifically, the terminal may specifically receive, by using the downlink control information (DCI), the high layer signaling, or the system broadcast message, the transmission resource corresponding to each maximum transmit power.

For example, the high-level signaling may be a radio resource control (RRC) message, and the transmission resource corresponding to each maximum transmit power may be carried by an information element (IE) in an RRC message. The RRC message may be an RRC message in the prior art, for example, an RRC CONNECTION RECONFIGURATION message, etc., which is not limited in this embodiment, and the IE of the existing RRC message is extended. The transmission resource corresponding to each maximum transmission power, or the RRC message may also be an RRC message different from that existing in the prior art.

Or, for example, the high-level signaling may be a Media Access Control (MAC) Control Element (CE) message, and may further carry the maximum transmission by adding a new MAC CE message. The transmission resource corresponding to the power.

Alternatively, for example, the existing primary information block (MIB) or (System Information Block, SIB) in the system broadcast message may be used to carry the transmission resource corresponding to each maximum transmit power, or It is also possible to add a new SIB carrying the transmission resource corresponding to each maximum transmission power.

It can be understood that, in the correspondence between the at least one optional maximum transmit power and the transmission resource, the transmission resource corresponding to each of the at least one optional maximum transmit power may also be By agreement.

For example, the terminal determines 1 PUCCH resource, which corresponds to the first maximum transmit power, ie, low power (23 dBm). Then, if the terminal determines to enter the low power transmission, that is, the first maximum transmission power is used for data transmission, the terminal may send the PUCCH to the network device on the determined PUCCH resource. Otherwise, if the terminal determines to enter the high power transmission, that is, the second maximum transmission power is used for data transmission, the terminal may not send the PUCCH to the network device on the determined PUCCH resource.

Or, for example, the terminal determines two PUCCH resources, that is, PUCCHR1 and PUCCHR2, which respectively correspond to a first maximum transmission power, that is, high power (26 dBm) and a second maximum transmission power, that is, low power (23 dBm). Then, if the terminal determines to enter the low power transmission, that is, the second maximum transmission power is used for data transmission, the terminal may send the PUCCH to the network device on the determined PUCCHR2. If the terminal determines to enter the high power transmission, that is, the first maximum transmission power is used for data transmission, the terminal may send the PUCCH to the network device on the determined PUCCHR1. If the terminal keeps the current maximum transmit power unchanged, the terminal may not send the PUCCH to the network device on the determined PUCCH resource.

Alternatively, for example, the terminal determines N PUCCH resources, that is, PUCCHR1, PUCCHR2, ..., PUCCHRN, which respectively correspond to the first maximum transmission power, the second maximum transmission power, that is, the low power, ..., the Nth maximum transmission power. After the terminal determines which maximum transmit power is used, the terminal may send the PUCCH to the network device on the corresponding PUCCH resource corresponding to the maximum transmit power. If the terminal keeps the current maximum transmit power unchanged, the terminal may not send the PUCCH to the network device on the determined PUCCH resource.

In the implementation process, in 101, the target information sent by the terminal to the network device may specifically include a specified number of bits. The specified number may be determined according to the quantity of the at least one optional maximum transmit power, for example,

Where N is the quantity of the at least one selectable maximum transmit power. Then, the terminal may determine, according to the correspondence between the at least one selectable maximum transmit power and the bit value of the specified number of bits, and the target transmit power, determine a bit corresponding to the target transmit power. value. Then, the terminal may send the target information to the network device, where the target information includes a bit value corresponding to the target transmit power.

Taking 1 bit as an example, Table 2 shows the correspondence between the two optional maximum transmit powers and the bit values of 1 bit.

Table 2 Correspondence between two optional maximum transmit powers and one-bit bit values

比特取值Bit value	可选的最大发送功率Optional maximum transmit power
00	最大发送功率P1Maximum transmission power P1
11	最大发送功率P2Maximum transmit power P2

Taking 2 bits as an example, Table 3 shows the correspondence between the four optional maximum transmit powers and the bit values of 2 bits.

Table 3 Correspondence between four optional maximum transmit power and two-bit bit values

比特取值Bit value	可选的最大发送功率Optional maximum transmit power
0000	最大发送功率P1Maximum transmission power P1
0101	最大发送功率P2Maximum transmit power P2
1010	最大发送功率P3Maximum transmission power P3
1111	最大发送功率P4Maximum transmission power P4

In the correspondence between the at least one optional maximum transmit power and the bit value, the value of the bit corresponding to each of the at least one optional maximum transmit power may be Network device configuration.

Specifically, the terminal may specifically receive a bit value corresponding to each maximum transmit power that is sent by the network device by using Downlink Control Information (DCI), high layer signaling, or system broadcast message.

For example, the high-level signaling may be a radio resource control (RRC) message, and the bit value corresponding to each maximum transmit power may be carried by an information element (IE) in an RRC message. The RRC message may be an RRC message in the prior art, for example, an RRC CONNECTION RECONFIGURATION message, etc., which is not limited in this embodiment, and the IE of the existing RRC message is extended and carried. The bit value corresponding to each maximum transmit power, or the RRC message may also be an RRC message different from that existing in the prior art.

Or, for example, the high-level signaling may be a Media Access Control (MAC) Control Element (CE) message, and may further carry the maximum transmission by adding a new MAC CE message. The bit corresponding to the power takes a value.

Alternatively, for example, the value of the bit corresponding to each maximum transmit power may be carried by using an existing Master Information Block (MIB) or a System Information Block (SIB) in the system broadcast message. Alternatively, the new SIB may be added to carry the bit value corresponding to each maximum transmit power.

It can be understood that, in the correspondence between the at least one optional maximum transmit power and the bit value, a value corresponding to each of the at least one selectable maximum transmit power, It can also be agreed by the agreement.

In another specific implementation process, the target information sent by the terminal to the network device may include only target transmit power effective time information.

The target transmit power effective time information is used to indicate a duration T during which the target transmit power is used as the maximum transmit power for data transmission. The method may be T time slots, or may be T radio frames, or may be T milliseconds, which is not specifically limited in this embodiment.

For example, the target transmission power effective time information may specifically display a duration T indicating that the target transmission power is used as the maximum transmission power for data transmission, that is, the target transmission power effective time information, and directly indicates the duration T.

Alternatively, for example, the target transmission power effective time information may specifically indicate the duration T of the data transmission by using the target transmission power as the maximum transmission power, that is, the target transmission power effective time information directly indicates the reference. Time S, then, the duration T=PS can be obtained according to the preset time parameter P and the reference time S.

In the implementation process, after 101, the terminal may perform data transmission by using the target transmit power as the maximum transmit power within a time length indicated by the target transmit power effective time information.

Specifically, the terminal may use the first maximum transmit power (for example, 26 dBm) as the target transmit power by default, and the target transmit power effective time information included in the target information indicates the duration T, and the terminal may start from the effective time. Within the duration T, the second maximum transmit power (eg, 23 dBm) is used as the target transmit power. After the duration T is reached, the terminal continues to use the first maximum transmit power (eg, 26 dBm) as the target transmit power by default.

The effective time refers to the time when the terminal starts to use the target transmit power as the maximum transmit power for data transmission.

In another specific implementation process, the target information sent by the terminal to the network device may include maximum transmit power indication information and target transmit power effective time information.

It can be understood that, in the implementation process, the technical solution in the foregoing two specific implementation processes may be specifically implemented, and the terminal is started from the effective time, and within the duration T, the target indicated by the maximum transmit power indication information is used. Transmit power. For details, refer to related content in the above implementation process, and details are not described herein again.

In this embodiment, the terminal information is sent to the network device by the terminal, where the target information is used to instruct the terminal to use the target sending power as the maximum sending power for data transmission, so that the network device can be based on the target information. Determining that the terminal uses the target transmit power as the maximum transmit power for data transmission, and the terminal can actively notify the network device of the maximum transmit power that can be used by the terminal, so that the problem that the SAR value of the high-power terminal exceeds the standard can be effectively avoided. .

2 is a schematic flowchart of another data transmission method according to another embodiment of the present invention, as shown in FIG. 2 .

201. The network device receives the target information sent by the terminal, where the target information is used to indicate related information that the terminal uses the target sending power as the maximum sending power for data transmission.

202. The network device determines, according to the target information, that the terminal uses the target transmit power as the maximum transmit power for data transmission.

In this embodiment, the terminal may determine a target transmit power according to the current SAR value of the terminal and the preset maximum SAR value, so as to prevent the SAR value of the terminal from exceeding the standard. The target transmit power may be less than or equal to a maximum transmit power P _max that the terminal is capable of using.

Optionally, in a possible implementation manner of this embodiment, in 201, the network device may specifically receive the target information by using the physical uplink channel.

In a specific implementation process, the network device may receive the target information by using a Physical Uplink Control Channel (PUCCH).

In another specific implementation process, the network device may receive the target information by using a physical uplink shared channel (PUSCH).

Optionally, in a possible implementation manner of this embodiment, in 201, the network device may receive the target information in the first time unit M, where the M is greater than or equal to 1 The integer. Then, in 202, the network device may determine, according to the target information, that the terminal starts to use the target transmit power as the maximum transmit power for data transmission after the second time unit M+K. Wherein, the K is a pre-configured integer greater than or equal to 1.

Optionally, in a possible implementation manner of this embodiment, in 201, the network device may specifically receive a target sequence, where the target sequence carries the target information.

Optionally, in a possible implementation manner of this embodiment, in 201, the target information received by the network device may include, but is not limited to, maximum transmit power indication information and target transmit power effective time information. At least one item is not particularly limited in this embodiment.

In a specific implementation process, the target information received by the network device may include only maximum transmit power indication information.

In the implementation process, before 202, the network device may further determine, according to the target information, an optional maximum transmit power from the at least one selectable maximum transmit power as the target transmit power.

Specifically, the network device may send at least one optional maximum transmit power to the terminal by using Downlink Control Information (DCI), high layer signaling, or system broadcast message.

In the implementation process, in 202, the network device may specifically receive the target information by using a target transmission resource. Then, the network device may determine the target transmit power corresponding to the target transmission resource according to the correspondence between the at least one selectable maximum transmit power and the transmission resource and the target transmission resource.

For example, the PUCCH resource (including the time domain resource, the frequency domain resource, and the code domain resource) is used as the transmission resource.

Specifically, the network device may send the transmission resource corresponding to each maximum transmit power to the terminal by using Downlink Control Information (DCI), high layer signaling, or system broadcast message.

For example, the network device determines 1 PUCCH resource, which corresponds to a first maximum transmit power, ie, low power (23 dBm). Then, if the network device receives the PUCCH on the determined PUCCH resource, the network device may determine that the terminal uses the first maximum transmit power as the target transmit power for data transmission. Otherwise, if the network device does not receive the PUCCH on the determined PUCCH resource, the network device may determine that the terminal uses the second maximum transmit power as the target transmit power for data transmission.

Or, for example, the network device determines two PUCCH resources, that is, PUCCH R1 and PUCCH R2, which respectively correspond to a first maximum transmission power, that is, high power (26 dBm) and a second maximum transmission power, that is, low power (23 dBm). Then, if the network device receives the PUCCH on the determined PUCCH R2, the network device may determine that the terminal uses the second maximum transmit power as the target transmit power for data transmission. If the network device receives the PUCCH on the determined PUCCH R1, the network device may determine that the terminal uses the first maximum transmit power as the target transmit power for data transmission. If the network device does not receive the PUCCH on the determined PUCCH resource, the network device may determine that the terminal keeps the current maximum transmit power unchanged.

Alternatively, for example, the network device determines N PUCCH resources, that is, PUCCH R1, PUCCH R2, ..., PUCCH RN, which respectively correspond to a first maximum transmit power, a second maximum transmit power, that is, a low power, ..., an Nth maximum transmission. power. On the PUCCH resource, the network device receives the PUCCH, and the network device can determine, by using the corresponding maximum transmit power corresponding to the PUCCH resource, the data transmission. If the network device does not receive the PUCCH on the determined PUCCH resource, the network device may determine that the terminal keeps the current maximum transmit power unchanged.

In the implementation process, the target information received by the network device may specifically include a specified number of bits. The specified number may be determined according to the quantity of the at least one optional maximum transmit power, for example,

Where N is the quantity of the at least one selectable maximum transmit power. Then, the network device may further perform, according to the correspondence between the at least one selectable maximum transmit power and the bit value of the specified number of bits, and the target information, including the target transmit power. The bit takes a value, and the target transmission power corresponding to the bit value is determined.

Taking 1 bit as an example, see Table 2. Taking 2 bits as an example, see Table 3.

Specifically, the network device may send a bit value corresponding to each maximum transmit power to the terminal by using Downlink Control Information (DCI), high layer signaling, or system broadcast message.

In another specific implementation process, the target information received by the network device may include only target transmit power effective time information.

In the implementation process, in 202, the network device may specifically determine that the terminal sends data by using the target sending power as the maximum sending power within a time length indicated by the target sending power effective time information. .

In another specific implementation process, the target information received by the network device may include maximum transmit power indication information and target transmit power effective time information.

In this embodiment, the target information sent by the terminal is received by the network device, where the target information is used to indicate related information that the terminal uses the target sending power as the maximum sending power for data transmission, so that the network device can be based on the target. And determining that the terminal uses the target transmit power as the maximum transmit power for data transmission, because the terminal can actively notify the network device of the maximum transmit power that can be used by the terminal, so that the SAR value of the high-power terminal can be effectively avoided. problem.

It should be noted that, for the foregoing method embodiments, for the sake of simple description, they are all expressed as a series of action combinations, but those skilled in the art should understand that the present invention is not limited by the described action sequence. Because certain steps may be performed in other sequences or concurrently in accordance with the present invention. In addition, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

In the above embodiments, the descriptions of the various embodiments are different, and the details that are not detailed in a certain embodiment can be referred to the related descriptions of other embodiments.

FIG. 3 is a schematic structural diagram of a data transmission apparatus according to another embodiment of the present invention, as shown in FIG. 3. The data transmission apparatus of this embodiment may include a sending unit 31, configured to send target information to the network device, where the target information is used to indicate related information that the terminal uses the target sending power as the maximum sending power for data transmission.

It should be noted that the data transmission device provided in this embodiment may be a terminal.

Optionally, in a possible implementation manner of the embodiment, the sending unit 31 may be specifically configured to send the target information to the network device by using a physical uplink control channel (PUCCH), or by using a physical uplink shared channel. The PUSCH transmits the target information to the network device.

Optionally, in a possible implementation manner of the embodiment, the sending unit 31 is specifically configured to send the target information to the network device in a specified period.

Optionally, in a possible implementation manner of the embodiment, the sending unit 31 is specifically configured to send, in the first time unit M, the target information to the network device, where the M is An integer greater than or equal to 1; correspondingly, the sending unit 31 may be further configured to start to use the target transmit power as the maximum transmit power for data transmission after the second time unit M+K, where K is a pre-configured integer greater than or equal to one.

Optionally, in a possible implementation manner of the embodiment, the sending unit 31 may be specifically configured to carry the target information by using a target sequence; and send the target sequence to the network device.

Optionally, in a possible implementation manner of this embodiment, the target information may include, but is not limited to, at least one of a maximum transmit power indication information and a target transmit power effective time information, which is not performed in this embodiment. Specially limited.

In a specific implementation process, the target information may include only the maximum transmit power indication information.

In the implementation process, the sending unit 31 may be further configured to select an optional maximum transmit power from the at least one optional maximum transmit power as the target transmit power.

The at least one optional maximum transmit power may be configured by the network device, or may be agreed by a protocol, which is not specifically limited in this embodiment.

In the implementation process, the sending unit 31 may be specifically configured to determine, according to the correspondence between the at least one optional maximum transmit power and the transmission resource, and the target transmit power, that the target transmit power is determined. And a transmission resource; and transmitting the target information to the network device by using a transmission resource corresponding to the target transmission power.

In the correspondence between the at least one optional maximum transmit power and the transmission resource, the transmission resource corresponding to each of the at least one optional maximum transmit power may be used by the network. The device configuration is also stipulated by the protocol, which is not specifically limited in this embodiment.

In the implementation process, the target information may specifically include a specified number of bits. The specified number may be determined according to the quantity of the at least one optional maximum transmit power, for example,

The N is the number of the at least one optional maximum transmit power. Then, the sending unit 31 is specifically configured to use, according to the at least one selectable maximum transmit power and a specified number of bits. Determining a correspondence between the values and the target transmission power, determining a bit value corresponding to the target transmission power, and transmitting the target information to the network device, where the target information includes sending with the target The bit corresponding to the power takes a value.

In the correspondence between the at least one optional maximum transmit power and the bit value, the value of the bit corresponding to each of the at least one optional maximum transmit power may be The configuration of the network device is also stipulated by the protocol, which is not specifically limited in this embodiment.

In another specific implementation process, the target information may include only target transmit power effective time information.

In the implementation process, the sending unit 31 may be further configured to perform data transmission by using the target transmit power as the maximum transmit power within a time length indicated by the target transmit power effective time information.

In another specific implementation process, the target information may include maximum transmit power indication information and target transmit power effective time information.

It should be noted that the method performed by the terminal in the embodiment corresponding to FIG. 1 can be implemented by the data transmission apparatus provided in this embodiment. For details, refer to related content in the embodiment corresponding to FIG. 1, and details are not described herein again.

In this embodiment, the target information is sent to the network device by using the sending unit, where the target information is used to indicate related information that the terminal uses the target sending power as the maximum sending power for data transmission, so that the network device can be based on the target information. The terminal is determined to use the target transmit power as the maximum transmit power for data transmission. Since the terminal can actively notify the network device of the maximum transmit power that can be used by the terminal, the problem that the SAR value of the high-power terminal exceeds the standard can be effectively avoided.

FIG. 4 is a schematic structural diagram of another data transmission apparatus according to another embodiment of the present invention, as shown in FIG. 4 . The data transmission device of this embodiment may include a receiving unit 41 and a determining unit 42. The receiving unit 41 is configured to receive target information that is sent by the terminal, where the target information is used to indicate related information that the terminal uses the target sending power as the maximum sending power for data transmission, and the determining unit 42 is configured to use the target according to the target. And determining, by the terminal, that the target transmission power is used as the maximum transmission power for data transmission.

It should be noted that the data transmission device provided in this embodiment may be a network device.

Optionally, in a possible implementation manner of this embodiment, the receiving unit 41 may be specifically configured to receive the target information by using a physical uplink control channel (PUCCH) or by using a physical uplink shared channel (PUSCH). Receiving the target information.

Optionally, in a possible implementation manner of the embodiment, the receiving unit 41 is specifically configured to receive the target information in the first time unit M, where the M is greater than or equal to 1 The integer. Then, the determining unit 42 is specifically configured to determine, according to the target information, that the terminal starts to use the target sending power as the maximum sending power for data transmission after the second time unit M+K. Wherein K is a pre-configured integer greater than or equal to one.

Optionally, in a possible implementation manner of the embodiment, the receiving unit 41 may be specifically configured to receive a target sequence, where the target sequence carries the target information.

In this implementation, the terminal may specifically map the target information to a corresponding target sequence, so that the target sequence can be carried on the target sequence. The terminal can then send the target sequence to the network device.

Optionally, in a possible implementation manner of the embodiment, the target information may include, but is not limited to, at least one of a maximum transmit power indication information and a target transmit power effective time information. Special restrictions are made.

In the implementation process, the determining unit 42 is specifically configured to determine, according to the target information, an optional maximum transmit power from the at least one selectable maximum transmit power as the target transmit power.

In the implementation process, the determining unit 42 may be specifically configured to receive the target information by using a target transmission resource, and according to the correspondence between the at least one selectable maximum transmit power and the transmission resource, and the target transmission. And determining, by the resource, the target transmit power corresponding to the target transmission resource.

Where N is the quantity of the at least one selectable maximum transmit power. Then, the determining unit 42 is specifically configured to: according to the correspondence between the at least one selectable maximum transmit power and the bit value of the specified number of bits, and the target information includes the target The value of the bit corresponding to the transmit power is used to determine the target transmit power corresponding to the bit value.

In the implementation process, the determining unit 42 may be specifically configured to determine that the terminal sends data by using the target sending power as the maximum sending power within a time length indicated by the target sending power effective time information. .

It should be noted that the method performed by the network device in the embodiment corresponding to FIG. 2 can be implemented by the data transmission apparatus provided in this embodiment. For details, refer to related content in the embodiment corresponding to FIG. 2, and details are not described herein again.

In this embodiment, the receiving unit sends the target information sent by the terminal, where the target information is used to instruct the terminal to use the target sending power as the maximum sending power for data transmission, so that the determining unit can be based on the target information. The terminal is determined to use the target transmit power as the maximum transmit power for data transmission. Since the terminal can actively notify the network device of the maximum transmit power that can be used by the terminal, the problem that the SAR value of the high-power terminal exceeds the standard can be effectively avoided.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided by the present invention, it should be understood that the disclosed system, apparatus, and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner. For example, multiple units or components may be combined. Or it can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not limited thereto; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that The technical solutions described in the foregoing embodiments are modified, or the equivalents of the technical features are replaced. The modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

A data transmission method, comprising:

The terminal sends the target information to the network device, where the target information is used to indicate related information that the terminal uses the target transmit power as the maximum transmit power for data transmission.
The method of claim 1 wherein said target transmit power is less than or equal to a maximum transmit power that said terminal is capable of using.
The method according to claim 1, wherein the terminal sends the target information to the network device, including:

Transmitting, by the terminal, the target information to the network device by using a physical uplink control channel PUCCH; or

The terminal sends the target information to the network device by using a physical uplink shared channel PUSCH.
The method according to claim 1, wherein the terminal sends the target information to the network device, including:

The terminal transmits the target information to the network device in a specified period.
The method according to claim 1, wherein the terminal sends the target information to the network device, including:

The terminal sends the target information to the network device in the first time unit M, where the M is an integer greater than or equal to 1;

After the second time unit M+K, the terminal starts to use the target transmit power as the maximum transmit power for data transmission, where the K is a pre-configured integer greater than or equal to 1.
The method according to claim 1, wherein the transmitting, by the terminal, the target information to the network device comprises:

The terminal uses the target sequence to carry the target information;

The terminal transmits the target sequence to the network device.
The method according to any one of claims 1 to 6, wherein the target information comprises at least one of maximum transmission power indication information and target transmission power effective time information.
The method according to claim 7, wherein before the terminal sends the target information to the network device, the method further includes:

The terminal selects an optional maximum transmit power from the at least one optional maximum transmit power as the target transmit power.
The method of claim 8 wherein said at least one selectable maximum transmit power is configured by said network device or by a protocol.
The method according to claim 8, wherein the transmitting, by the terminal, the target information to the network device comprises:

Determining, by the terminal, a transmission resource corresponding to the target transmission power according to a correspondence between the at least one optional maximum transmission power and a transmission resource and the target transmission power;

The terminal sends the target information to the network device by using a transmission resource corresponding to the target transmission power.
The method according to claim 10, wherein the transmission resource corresponding to each of the at least one optional maximum transmission power is configured by the network device or by a protocol.
The method according to claim 8, wherein the target information includes a specified number of bits, wherein the specified number is determined according to the quantity of the at least one selectable maximum transmit power; the terminal to the network device Send target information, including:

Determining, by the terminal, a bit value corresponding to the target transmit power according to a correspondence between the at least one selectable maximum transmit power and a bit value of the specified number of bits and the target transmit power;

The terminal sends the target information to the network device, where the target information includes a bit value corresponding to the target transmit power.
The method according to claim 12, wherein the bit value corresponding to each of the at least one selectable maximum transmit power is configured by the network device or by a protocol.
The method according to claim 7, wherein after the terminal sends the target information to the network device, the method further includes:

The terminal performs data transmission by using the target transmission power as the maximum transmission power within a time length indicated by the target transmission power effective time information.
A data transmission method, comprising:

The network device receives the target information sent by the terminal, where the target information is used to indicate related information that the terminal uses the target transmit power as the maximum transmit power for data transmission;

The network device determines, according to the target information, that the terminal uses the target transmit power as the maximum transmit power for data transmission.
The method of claim 15 wherein said target transmit power is less than or equal to a maximum transmit power that said terminal is capable of using.
The method according to claim 15, wherein the receiving, by the network device, the target information sent by the terminal comprises:

Receiving, by the network device, the target information by using a physical uplink control channel PUCCH; or

The network device receives the target information through a physical uplink shared channel PUSCH.
The method of claim 15 wherein:

The network device receives the target information sent by the terminal, including:

The network device receives the target information in the first time unit M, where the M is an integer greater than or equal to 1;

The network device determines, according to the target information, that the terminal uses the target sending power as the maximum sending power for data transmission, including:

The network device determines, according to the target information, that the terminal starts to use the target sending power as the maximum sending power for data transmission after the second time unit M+K, where the K is a pre-configured greater than or An integer equal to 1.
The method according to claim 15, wherein the receiving, by the network device, the target information sent by the terminal comprises:

The network device receives a target sequence, the target sequence carrying the target information.
The method according to any one of claims 15 to 19, wherein the target information comprises at least one of maximum transmission power indication information and target transmission power effective time information.
The method according to claim 20, wherein the network device determines, according to the target information, that the terminal uses the target transmit power as the maximum transmit power for data transmission, and further includes:

The network device determines, according to the target information, an optional maximum transmit power from the at least one selectable maximum transmit power as the target transmit power.
The method of claim 21 wherein said at least one selectable maximum transmit power is configured by said network device or by a protocol.
The method according to claim 21, wherein the network device determines, according to the target information, that the terminal uses the target transmit power as the maximum transmit power for data transmission, including:

Receiving, by the network device, the target information by using a target transmission resource;

Determining, by the network device, the target transmit power corresponding to the target transmission resource according to a correspondence between the at least one selectable maximum transmit power and a transmission resource and the target transmission resource.
The method according to claim 23, wherein the transmission resource corresponding to each of the at least one selectable maximum transmission power is configured by the network device or by a protocol.
The method according to claim 21, wherein the target information includes a specified number of bits, wherein the specified number is determined according to the quantity of the at least one selectable maximum transmit power; the network device determines the The terminal uses the target transmit power as the maximum transmit power for data transmission, including:

Determining, by the network device, a correspondence between the bit values of the at least one selectable maximum transmit power and the specified number of bits, and a value of the bit corresponding to the target transmit power in the target information. The bit value corresponds to the target transmission power.
The method according to claim 25, wherein the bit value corresponding to each of the at least one optional maximum transmit power is configured by the network device or by a protocol.
The method according to claim 20, wherein the receiving, by the network device, the target information sent by the terminal comprises:

The network device determines that the terminal transmits data by using the target transmit power as the maximum transmit power within a time length indicated by the target transmit power effective time information.
A data transmission device, comprising:

And a sending unit, configured to send, to the network device, target information, where the target information is used to indicate related information that the terminal uses the target sending power as the maximum sending power for data transmission.
The apparatus according to claim 28, wherein said target transmission power is less than or equal to a maximum transmission power usable by said terminal.
The apparatus according to claim 28, wherein said transmitting unit is specifically configured to:

Transmitting the target information to the network device by using a physical uplink control channel PUCCH; or

The target information is transmitted to the network device through a physical uplink shared channel PUSCH.
The apparatus according to claim 28, wherein said transmitting unit is specifically configured to:

The target information is transmitted to the network device in a specified period.
The apparatus according to claim 28, wherein said transmitting unit is specifically configured to:

Transmitting, in the first time unit M, the target information to the network device, where the M is an integer greater than or equal to 1; and the sending unit is further configured to:

After the second time unit M+K, data transmission is started using the target transmission power as the maximum transmission power, wherein the K is a pre-configured integer greater than or equal to 1.
The apparatus according to claim 28, wherein said transmitting unit is specifically configured to:

Using the target sequence to carry the target information;

Sending the target sequence to the network device.
The apparatus according to any one of claims 28 to 33, wherein the target information comprises at least one of maximum transmission power indication information and target transmission power effective time information.
The apparatus according to claim 34, wherein said transmitting unit is further configured to

From the at least one selectable maximum transmit power, an optional maximum transmit power is selected as the target transmit power.
The apparatus of claim 35, wherein the at least one selectable maximum transmit power is configured by the network device or by a protocol.
The device according to claim 35, wherein said transmitting unit is specifically configured to

Determining, according to the correspondence between the at least one selectable maximum transmit power and the transmission resource and the target transmit power, a transmission resource corresponding to the target transmit power;

The target information is transmitted to the network device by a transmission resource corresponding to the target transmission power.
The apparatus according to claim 37, wherein a transmission resource corresponding to each of the at least one optional maximum transmission power is configured by the network device or by a protocol.
The apparatus according to claim 35, wherein the target information includes a specified number of bits, wherein the specified number is determined according to the quantity of the at least one selectable maximum transmit power; the sending unit, specifically Used for

Determining, according to a correspondence between the at least one selectable maximum transmit power and a bit value of the specified number of bits and the target transmit power, a bit value corresponding to the target transmit power;

Sending the target information to the network device, where the target information includes a bit value corresponding to the target transmit power.
The apparatus of claim 39, wherein the value of the bit corresponding to each of the at least one of the selectable maximum transmit powers is configured by the network device or by a protocol.
The apparatus according to claim 34, wherein said transmitting unit is further configured to

Data transmission is performed using the target transmission power as the maximum transmission power within the length of time indicated by the target transmission power effective time information.
A data transmission device, comprising:

a receiving unit, configured to receive target information sent by the terminal, where the target information is used to indicate related information that the terminal uses the target sending power as the maximum sending power for data transmission;

And a determining unit, configured to determine, according to the target information, that the terminal uses the target transmit power as the maximum transmit power for data transmission.
The apparatus according to claim 42, wherein said target transmission power is less than or equal to a maximum transmission power usable by said terminal.
The device according to claim 42, wherein the receiving unit is specifically configured to

Receiving the target information through a physical uplink control channel PUCCH; or

The target information is received through a physical uplink shared channel PUSCH.
The device according to claim 42, wherein

The receiving unit is specifically configured to

Receiving, in the first time unit M, the target information, wherein the M is an integer greater than or equal to 1;

The determining unit is specifically configured to

Determining, according to the target information, that the terminal starts to use the target transmit power as the maximum transmit power for data transmission after the second time unit M+K, where the K is a pre-configured integer greater than or equal to 1. .
The device according to claim 42, wherein the receiving unit is specifically configured to

A target sequence is received, the target sequence carrying the target information.
The apparatus according to any one of claims 42 to 46, wherein the target information comprises at least one of maximum transmission power indication information and target transmission power effective time information.
The apparatus according to claim 47, wherein said determining unit is specifically for

Determining, from the at least one selectable maximum transmit power, an optional maximum transmit power as the target transmit power according to the target information.
The apparatus of claim 48, wherein the at least one selectable maximum transmit power is configured by a network device or by a protocol.
The device according to claim 48, wherein said determining unit is specifically for

Receiving the target information through a target transmission resource;

Determining, according to the correspondence between the at least one selectable maximum transmit power and the transmission resource and the target transmission resource, the target transmit power corresponding to the target transmission resource.
The apparatus according to claim 50, wherein the transmission resource corresponding to each of the at least one selectable maximum transmission power is configured by a network device or by a protocol.
The apparatus according to claim 48, wherein the target information includes a specified number of bits, wherein the specified number is determined according to the quantity of the at least one selectable maximum transmit power; the determining unit, specifically to

Determining a value from the bit according to a correspondence between the at least one selectable maximum transmit power and a bit value of the specified number of bits, and a bit value corresponding to the target transmit power included in the target information. Corresponding target transmission power.
The apparatus according to claim 52, wherein the bit value corresponding to each of the at least one selectable maximum transmit power is configured by a network device or by a protocol.
The apparatus according to claim 47, wherein said determining unit is specifically for

Determining that the terminal transmits data by using the target transmit power as the maximum transmit power within a time length indicated by the target transmit power effective time information.