WO2019169624A1 - Procédé et dispositif de transmission de données - Google Patents

Procédé et dispositif de transmission de données Download PDF

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Publication number
WO2019169624A1
WO2019169624A1 PCT/CN2018/078571 CN2018078571W WO2019169624A1 WO 2019169624 A1 WO2019169624 A1 WO 2019169624A1 CN 2018078571 W CN2018078571 W CN 2018078571W WO 2019169624 A1 WO2019169624 A1 WO 2019169624A1
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WO
WIPO (PCT)
Prior art keywords
target
transmit power
network device
terminal
target information
Prior art date
Application number
PCT/CN2018/078571
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English (en)
Chinese (zh)
Inventor
林亚男
张治�
沈嘉
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to CN201880077073.7A priority Critical patent/CN111418237B/zh
Priority to PCT/CN2018/078571 priority patent/WO2019169624A1/fr
Publication of WO2019169624A1 publication Critical patent/WO2019169624A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters

Definitions

  • the present invention relates to data transmission technologies, and in particular, to a data transmission method and apparatus.
  • 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.
  • another data transmission method 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.
  • a data transmission apparatus comprising:
  • 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.
  • 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;
  • 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 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.
  • 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.
  • FIG. 1 is a schematic flowchart of a data transmission method according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of another data transmission method according to another embodiment of the present invention.
  • FIG. 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.
  • 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.
  • 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.
  • the terminal may specifically send the target information to the network device by using a physical uplink channel.
  • the terminal may specifically send the target information to the network device by using a Physical Uplink Control Channel (PUCCH).
  • PUCCH Physical Uplink Control Channel
  • 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.
  • the terminal sends the target information to the network device by using a Physical Uplink Shared Channel (PUSCH).
  • PUSCH Physical Uplink Shared Channel
  • 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.
  • the resource element (RE) occupied On the resource element (RE) occupied.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the terminal may further select an optional maximum transmit power from the at least one optional maximum transmit power as the target transmit power.
  • 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.
  • 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.
  • DCI Downlink Control Information
  • High layer signaling high layer signaling
  • system broadcast message system broadcast message
  • the high-level signaling may be a radio resource control (RRC) message
  • 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.
  • 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.
  • MAC Media Access Control
  • CE Control Element
  • 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.
  • MIB Master Information Block
  • SIB System Information Block
  • the at least one optional maximum transmit power can also be agreed by a protocol.
  • 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.
  • Table 1 shows the correspondence between N optional maximum transmission powers and transmission resources.
  • PUCCH resources Optional maximum transmit power PUCCH resource 1 Maximum transmission power P1 PUCCH Resources 2 Maximum transmit power P2 ?? & PUCCH resource N Maximum transmit power PN
  • the transmission resource corresponding to each of the at least one optional maximum transmit power may be used by the network.
  • 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.
  • DCI downlink control information
  • 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.
  • DCI downlink control information
  • the high layer signaling the high layer signaling
  • the system broadcast message the transmission resource corresponding to each maximum transmit power.
  • the high-level signaling may be a radio resource control (RRC) message
  • 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.
  • 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 may be a Media Access Control (MAC) Control Element (CE) message.
  • MAC Media Access Control
  • CE Control Element
  • 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.
  • MIB primary information block
  • SIB System Information Block
  • the transmission resource corresponding to each of the at least one optional maximum transmit power may also be By agreement.
  • 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.
  • 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 P
  • 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.
  • 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,
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • Table 2 shows the correspondence between the two optional maximum transmit powers and the bit values of 1 bit.
  • Table 3 shows the correspondence between the four optional maximum transmit powers and the bit values of 2 bits.
  • the value of the bit corresponding to each of the at least one optional maximum transmit power may be Network device configuration.
  • 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.
  • DCI Downlink Control Information
  • high layer signaling high layer signaling
  • system broadcast message system broadcast message
  • 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.
  • 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.
  • 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.
  • 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.
  • MIB Master Information Block
  • SIB System Information Block
  • the new SIB may be added to carry the bit value corresponding to each maximum transmit power.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the second maximum transmit power eg, 23 dBm
  • 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.
  • 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.
  • 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. .
  • FIG. 2 is a schematic flowchart of another data transmission method according to another embodiment of the present invention, as shown in FIG. 2 .
  • 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.
  • 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 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.
  • the network device may specifically receive the target information by using the physical uplink channel.
  • the network device may receive the target information by using a Physical Uplink Control Channel (PUCCH).
  • PUCCH Physical Uplink Control Channel
  • 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.
  • the network device may receive the target information by using a physical uplink shared channel (PUSCH).
  • PUSCH physical uplink shared channel
  • 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.
  • the resource element (RE) occupied On the resource element (RE) occupied.
  • 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.
  • 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.
  • 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.
  • the network device may specifically receive a target sequence, where the target sequence carries the target information.
  • 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.
  • 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.
  • the target information received by the network device may include only maximum transmit power indication information.
  • the maximum transmit power indication information is used to indicate the target transmit power.
  • 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.
  • the at least one optional maximum transmit power may be configured by the network device.
  • 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.
  • DCI Downlink Control Information
  • high layer signaling high layer signaling
  • system broadcast message system broadcast message
  • the high-level signaling may be a radio resource control (RRC) message
  • 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.
  • 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.
  • MAC Media Access Control
  • CE Control Element
  • 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.
  • MIB Master Information Block
  • SIB System Information Block
  • the at least one optional maximum transmit power can also be agreed by a protocol.
  • 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.
  • the PUCCH resource (including the time domain resource, the frequency domain resource, and the code domain resource) is used as 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 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.
  • DCI Downlink Control Information
  • high layer signaling high layer signaling
  • system broadcast message system broadcast message
  • the high-level signaling may be a radio resource control (RRC) message
  • 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.
  • 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 may be a Media Access Control (MAC) Control Element (CE) message.
  • MAC Media Access Control
  • CE Control Element
  • 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.
  • MIB primary information block
  • SIB System Information Block
  • the transmission resource corresponding to each of the at least one optional maximum transmit power may also be By agreement.
  • 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.
  • a first maximum transmit power ie, low power (23 dBm).
  • 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.
  • 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 receive
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the value of the bit corresponding to each of the at least one optional maximum transmit power may be Network device configuration.
  • 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.
  • DCI Downlink Control Information
  • high layer signaling high layer signaling
  • system broadcast message system broadcast message
  • 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.
  • 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.
  • 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.
  • 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.
  • MIB Master Information Block
  • SIB System Information Block
  • the new SIB may be added to carry the bit value corresponding to each maximum transmit power.
  • the target information received by 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.
  • 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.
  • 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.
  • 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. .
  • 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.
  • the second maximum transmit power eg, 23 dBm
  • 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.
  • the target information received by the network device may include maximum transmit power indication information and target transmit power effective time information.
  • 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.
  • 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.
  • the data transmission device provided in this embodiment may be a terminal.
  • 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.
  • 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.
  • the sending unit 31 is specifically configured to send the target information to the network device in a specified period.
  • 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.
  • 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.
  • 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.
  • 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.
  • the target information may include only the maximum transmit power indication information.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the target information may include only target transmit power effective time information.
  • 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.
  • the target information may include maximum transmit power indication information and target transmit power effective time information.
  • 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.
  • the data transmission apparatus provided 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.
  • the data transmission device may be a network device.
  • 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.
  • 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.
  • a physical uplink control channel PUCCH
  • PUSCH physical uplink shared channel
  • 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.
  • the receiving unit 41 may be specifically configured to receive a target sequence, where the target sequence carries the target information.
  • 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.
  • 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.
  • 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.
  • the target information may include only the maximum transmit power indication information.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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, Where N is the quantity of the at least one selectable maximum transmit power.
  • 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.
  • 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.
  • the target information may include only target transmit power effective time information.
  • 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. .
  • the target information may include maximum transmit power indication information and target transmit power effective time information.
  • 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.
  • the data transmission apparatus provided 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.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • multiple units or components may be combined. Or it can be integrated into another system, or some features can be ignored or not executed.
  • 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.
  • 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.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé et un dispositif de transmission de données. Selon les modes de réalisation de la présente invention, un terminal transmet des informations cible à un dispositif de réseau. Les informations cible sont utilisées pour indiquer des informations pertinentes concernant la transmission de données, par le terminal, en utilisant une puissance d'émission cible en tant que la puissance d'émission maximale. D'après les informations cible, le dispositif de réseau peut ainsi déterminer que le terminal transmet des données en utilisant la puissance d'émission cible en tant que la puissance d'émission maximale. Comme le terminal peut informer activement le dispositif de réseau de la puissance d'émission maximale que le terminal peut utiliser, il est possible d'empêcher efficacement que la valeur SAR d'un terminal haute puissance dépasse une norme.
PCT/CN2018/078571 2018-03-09 2018-03-09 Procédé et dispositif de transmission de données WO2019169624A1 (fr)

Priority Applications (2)

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CN201880077073.7A CN111418237B (zh) 2018-03-09 2018-03-09 数据传输方法及装置
PCT/CN2018/078571 WO2019169624A1 (fr) 2018-03-09 2018-03-09 Procédé et dispositif de transmission de données

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PCT/CN2018/078571 WO2019169624A1 (fr) 2018-03-09 2018-03-09 Procédé et dispositif de transmission de données

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103582096A (zh) * 2012-08-03 2014-02-12 普天信息技术研究院有限公司 一种闭环功率控制方法和装置
CN106658693A (zh) * 2016-12-29 2017-05-10 深圳天珑无线科技有限公司 一种通信方法和装置
WO2017142029A1 (fr) * 2016-02-19 2017-08-24 株式会社Ｎｔｔドコモ Équipement utilisateur, station de base sans fil et procédé de communication sans fil

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Publication number Priority date Publication date Assignee Title
CN106488544B (zh) * 2012-03-23 2020-08-07 华为技术有限公司 上行功率控制方法、网络节点及系统
CN103974340B (zh) * 2013-01-31 2018-05-18 华为技术有限公司 调整网络配置的方法及装置
JP6298329B2 (ja) * 2014-03-20 2018-03-20 株式会社Ｎｔｔドコモ ユーザ端末、無線基地局および無線通信方法

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Publication number Priority date Publication date Assignee Title
CN103582096A (zh) * 2012-08-03 2014-02-12 普天信息技术研究院有限公司 一种闭环功率控制方法和装置
WO2017142029A1 (fr) * 2016-02-19 2017-08-24 株式会社Ｎｔｔドコモ Équipement utilisateur, station de base sans fil et procédé de communication sans fil
CN106658693A (zh) * 2016-12-29 2017-05-10 深圳天珑无线科技有限公司 一种通信方法和装置

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