WO2019095755A1 - Procédé de commande de puissance de faisceau, dispositif de communication et support d'informations - Google Patents

Procédé de commande de puissance de faisceau, dispositif de communication et support d'informations Download PDF

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Publication number
WO2019095755A1
WO2019095755A1 PCT/CN2018/100533 CN2018100533W WO2019095755A1 WO 2019095755 A1 WO2019095755 A1 WO 2019095755A1 CN 2018100533 W CN2018100533 W CN 2018100533W WO 2019095755 A1 WO2019095755 A1 WO 2019095755A1
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WIPO (PCT)
Prior art keywords
power
index
offset
power compensation
communication device
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PCT/CN2018/100533
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English (en)
Chinese (zh)
Inventor
郑毅
童辉
夏亮
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中国移动通信有限公司研究院
中国移动通信集团有限公司
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Publication of WO2019095755A1 publication Critical patent/WO2019095755A1/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 disclosure relates to the field of wireless communications, but is not limited to the field of wireless communications, and in particular, to a beam power control method, a communication device, and a storage medium.
  • Beamforming performs information exchange in the form of beams by directional, rather than omnidirectionally transmitting radio waves in three-dimensional space.
  • the beam is essentially composed of wireless signals.
  • the receiving end needs to have a large enough receiving power for the wireless signal to ensure that the receiving end has sufficient decoding accuracy to ensure communication quality. Therefore, before transmitting the beam, the transmitting end needs to calculate the transmitting power to ensure the receiving quality of the receiving end.
  • the transmission power of the transmitting end is usually calculated based on the target receiving power and the path loss of the receiving end.
  • this method it is found in the specific application that even if this method is adopted, there are still many problems of poor reception quality at the receiving end, so how to further improve In the beam communication process, the receiving quality of the receiving end to ensure the communication quality is a problem that needs to be further solved.
  • Embodiments of the present disclosure are desirably providing a beam power control method, a communication device, and a storage medium.
  • an embodiment of the present disclosure provides a power control method for a beam, where the application is applied to a first communications device, including:
  • Determining a power compensation offset wherein at least one of the power compensation offsets is a power adjustment amount for power compensation for a beam
  • the transmit power of the beam is calculated based on at least one of the power compensated offsets.
  • an embodiment of the present disclosure provides a power control method for a beam, which is applied to a second communications device, and includes:
  • Transmitting a query index or a power compensation offset wherein the query index is used by the first communications device to determine the power offset offset; wherein at least one of the power offset offsets is used for powering a beam The amount of power adjustment for compensation.
  • an embodiment of the present disclosure provides a communications device, where the communications device is a first communications device, including:
  • a determining unit configured to determine a power compensation offset, wherein at least one of the power compensation offsets is configured as a power adjustment amount for power compensation of the beam;
  • a calculating unit configured to calculate a transmit power of the beam according to the at least one of the power compensation offsets.
  • an embodiment of the present disclosure provides a communications device, where the communications device is a second communications device, including:
  • a second sending unit configured to send a query index or a power compensation offset, where the query index is used by the first communications device to determine the power offset offset; wherein at least one of the power offset offsets It is the amount of power adjustment used for power compensation for the beam.
  • an embodiment of the present disclosure provides a communication device, including: a transceiver, a memory, a processor, and a computer program stored on the memory and executed by the processor;
  • the processor is respectively connected to the transceiver and the memory, configured to implement a power control method applied to a beam provided by one or more technical solutions in the first communication device by executing the computer program, or A power control method applied to a beam provided by one or more of the second communication devices is performed.
  • a computer storage medium storing a computer program; the computer program being executed, capable of being implemented by one or more technical solutions applied to the first communication device A power control method of the beam, or a power control method applied to a beam provided by one or more technical solutions in the second communication device.
  • FIG. 1A is a schematic flowchart of a method for controlling power of a beam according to an embodiment of the present disclosure
  • FIG. 1B is a schematic flowchart diagram of another power control method for a beam according to an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of utilizing beam communication between a base station and a UE
  • Figure 4 is a schematic diagram showing the degree of interference in different beam directions
  • FIG. 5A to FIG. 5C are schematic flowcharts of still another power control method for a beam according to an embodiment of the present disclosure
  • FIG. 6 is a schematic diagram of interaction of power compensation offsets based on different beams according to an embodiment of the present disclosure
  • FIG. 7 is a schematic flowchart diagram of a power control method for another beam according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a first communications device according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a second communications device according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of another communication device according to an embodiment of the present disclosure.
  • the present embodiment provides a power control method for a beam, which is applied to a first communications device, and includes:
  • Step S110 determining a power compensation offset, wherein the power compensation offset is used for power adjustment of power compensation for the beam;
  • Step S120 Calculate the transmit power of the beam according to at least one of the power compensation offsets.
  • the method further includes:
  • Step S130 Transmit a beam according to the transmit power.
  • the first communication device may be any one of two communication sides that utilize beam communication.
  • the communication device is a base station and a user equipment (User Equipment, UE), and the first communication device may be a UE.
  • the first communication device and the second communication device may both be UEs, then the first communication device may be a communication device that transmits a beam, and the second communication device is a device that receives a beam.
  • the power compensation offset may include: a power adjustment amount for power compensation for beam interference to improve communication currently used between two communication devices. Anti-interference ability, improve communication quality.
  • the transmission frequencies used by different beams may be different, and the transmission loss may be different on the same or similar transmission channels.
  • the power compensation offset may further include: transmission loss for different beams. The amount of power adjustment.
  • the power control method of the beam considers the characteristics of different beam use processes before calculating the transmit power of the beam, thereby introducing a power compensation offset for calculating different beams.
  • the pair may be first determined. Interfering with the compensated power compensation offset, and then calculating the transmit power in combination with the determined power offset offset, and then using the calculated transmit power for beam transmission, so that when transmitting the beam, considering the interference to the receiving end.
  • the characteristics of different beams, such as the interference of the reception quality can ensure that the receiving end can receive the target receiving power, thereby improving the communication quality again.
  • Figure 2 shows the degree of interference received by the different beams.
  • the abscissa is the beam index
  • the ordinate is the degree of interference
  • the different beam indices represent different beams. Therefore, in order to distinguish the adverse effects caused by the interference level received by each beam, the communication device will The power compensation offset of the transmit beam is determined.
  • the power offset offset here is the transmit power of the compensated beam.
  • the beam interference here may be interference between beams, the same inter-beam interference in the cell, the beam between different cells, and the like.
  • the power compensation offset is used to improve the transmit power of the beam, so that the signal strength of the beam received by the receiving device (ie, the second communication device) caused by the beam can be cancelled or suppressed, thereby ensuring the beam receiving quality. Ensure communication quality.
  • FIG. 3 shows a method for information exchange between a base station and a UE through a beam.
  • the UE transmits a beam, and the base station receives the received beam corresponding thereto.
  • Figure 4 shows the beam interference degree curves for different beam pairs, where different linear representations of different beam pairs; the horizontal axis represents: the beam is not receiving energy at the receiving end; the vertical axis represents: probability of occurrence.
  • the power compensation offset is one of the independent variables when calculating the transmit power. Different power compensation offsets, the transmit power is different if the other parameters of the transmit power are consistent. A beam that transmits a transmit power equal to the calculated transmit power is reused. In this case, the transmission power is compensated for the interference received by different beams, so that the receiving end has a greater probability of receiving the beam of the target power, thereby ensuring the communication quality.
  • the power control method of the beam provided in this embodiment can be applied to any frequency band, and can be applied to a medium-high frequency band, for example, to a wireless spectrum with a frequency higher than 2 GHz.
  • the first communication device there are various ways for the first communication device to obtain the power compensation offset. The following two options are provided:
  • the step S110 may include:
  • the power compensation offset may be carried in various downlink signaling.
  • the scheduling information is sent to the UE, for example, the power compensation is directly sent to the UE by using information such as radio resource control (RRC) signaling, downlink control information (DCI), or resource scheduling.
  • RRC radio resource control
  • DCI downlink control information
  • the UE first receives the delivered power offset offset from the base station before performing the uplink beam transmission. After receiving the power offset offset, the transmit power of the uplink beam is calculated, and then the uplink beam is transmitted to the base station using the calculated transmit power.
  • the step S110 may include:
  • Step S111 Receive a query index from the second communication device.
  • Step S112 Query the power compensation offset according to the query index.
  • the first communication device may receive a query index from the second communication device in advance. Then, after receiving the query index, the corresponding relationship between the pre-stored query index and the power compensation offset is locally queried, thereby obtaining a power compensation offset corresponding to the query index sent by the second communication device.
  • the transmit power is calculated based on the power offset offset of the query in step S120.
  • the step S111 may include: receiving an offset index sent by the second communications device;
  • the step S112 may include: querying the pre-acquired power compensation offset set to obtain the power compensation offset by using the offset index as a query index.
  • the first communication device stores in advance a set of deviation amounts.
  • the power compensation offset set includes a plurality of power compensation offsets corresponding to the offset index.
  • the power compensation offset set includes N power compensation offsets, and the power compensation offsets are sequentially ordered.
  • the offset index may be a corresponding power compensation offset. The sequence number in the power compensation offset set.
  • the second communication device may indicate the offset index by taking the entire bit up (log 2 N ).
  • the step S111 may include: receiving a beam index sent by the second communications device;
  • the step S112 may include: querying the pre-acquired power compensation offset set with the beam index as a query index, and obtaining the power compensation offset.
  • the beam index directly sent by the second communication device may be used to indicate the beam sent by the first communication device by using the beam index, and the beam index is also used for the power compensation bias in this embodiment.
  • the index of the query for the shift may be used to indicate the beam sent by the first communication device by using the beam index, and the beam index is also used for the power compensation bias in this embodiment.
  • the index of the query for the shift may be used to indicate the beam sent by the first communication device by using the beam index, and the beam index is also used for the power compensation bias in this embodiment.
  • the power compensation offset in the power compensation offset set has a corresponding relationship with the beam index, so after the first communication device receives the beam index, the beam index is used as a query.
  • the pre-stored offset based on the query.
  • the query index is sent by physical layer signaling.
  • the step S111 may include:
  • the physical layer signaling may be the lowest layer signaling in the communication network.
  • the typical physical layer signaling may be a DCI.
  • the method further includes:
  • Step S101 Receive the power compensation offset set sent by the second communications device.
  • the base station may send the power compensation offset set periodically or aperiodically through a system message or the like.
  • the UE located in the cell formed by the base station can receive the power compensation offset set delivered by the base station.
  • the power compensation offset of different beams is based on long-term observation of interference of each beam, and statistical data determined according to the compensation effect of the interference.
  • the step S101 may specifically include:
  • the high layer signaling may be non-physical layer (PHY) signaling, for example, RRC signaling, media access control (MAC) layer signaling, etc., MAC layer higher than the PHY layer, and radio link control (RLC) layer signaling. Or Packet Data Convergence (PDCP) layer signaling.
  • PHY physical layer
  • MAC media access control
  • RLC radio link control
  • PDCP Packet Data Convergence
  • the power compensation offset set is carried by high layer signaling, so that the power compensation offset set is not transmitted by using additional dedicated signaling, thereby having the characteristics of strong compatibility of the prior art.
  • the power compensation offset set and the query index may be periodically sent by the second communications device. In this case, the sending period of the power compensation offset set is greater than the query index. The sending cycle.
  • the power compensation offset set is issued periodically, and the query index is sent based on a request of the first communication device.
  • the set of power compensation offsets and the query index are both sent based on a request by the first communication device.
  • the power compensation offset set may be sent to the UE according to the request of the UE, as a system information block of the on-demand request of the base station.
  • the information interaction between the first communications device and the second communications device includes:
  • the first communication device queries the power compensation offset set according to the wave speed index, and determines a power compensation offset of the currently calculated transmit power;
  • a beam is transmitted to the second communication device in accordance with the calculated transmit power.
  • the step S120 may include:
  • the transmit power is calculated based on the closed loop power value.
  • the power compensation offset determined in step S110 is used as a closed loop power control parameter, that is, the power compensation offset is used as one of the independent variables, and the closed loop power control adjustment amount is calculated.
  • the calculation of the transmit power is performed using closed loop power control. Closed-loop power control is a control method in which the transmitting power of the transmitting end is dynamically adjusted according to the receiving effect of the receiving end. In this way, the transmitting power can be ensured to be applicable to the wireless environment at different times to further ensure the communication effect.
  • the step S120 may calculate the transmit power by using the following function:
  • P is the transmit power
  • i is the sequence number of the time unit used by the beam
  • P cmax (i) is the maximum transmit power of the first communication device
  • P 0 is the target received power of the second communication device
  • delta is the power compensation offset
  • M is the number of resource blocks used by the beam
  • ⁇ is the partial power adjustment coefficient.
  • the time unit can be a frame, a subframe, a time slot, a minislot, or a transmission symbol.
  • the transmit power is the P cmax (i); when the 10* If log10(M)+P 0 + ⁇ *PL+delta is smaller than the P cmax (i), the transmission power may be 10*log10(M)+P 0 + ⁇ *PL+delta.
  • the delta can be calculated or obtained by looking up a table.
  • a few ways to calculate the delta are a few ways to calculate the delta:
  • index is a query index of the power compensation offset
  • deltaTF index (i) is a first power adjustment amount corresponding to a transmission format adopted by the beam based on i and index queries
  • f(i) index is based on a second closed-loop power adjustment amount of the beam that is queried by i and index
  • deltaTF(i) is a second power adjustment amount corresponding to a transmission format adopted by the beam based on index and i query
  • f(i) is a second closed loop power adjustment amount of the beam based on i being queried
  • Offset index (i) is the amount of power adjustment based on index and i for the query.
  • the query index may be a beam index beam-index or an offset index.
  • the beam-index is taken as an example to further provide several alternative formulas for calculating the delta:
  • the beam-index is a beam index of the beam.
  • DeltaTF beam-index (i) is a first power adjustment amount corresponding to a transmission format adopted by the beam based on beam-index and i;
  • f(i) beam-index is the first closed-loop power adjustment amount based on the beam-index query
  • deltaTF(i) is a second power adjustment amount corresponding to a transmission format adopted by the beam based on beam-index and i query;
  • f(i) is a second closed loop power adjustment amount of the beam queried based on i as a dependent variable
  • the f(i) index is a second closed-loop power adjustment amount of the transmission beam based on the beam-index query; the offset beam_index (i) is a power adjustment amount based on the beam-index and the i-query.
  • the formula for calculating the transmit power may include at least one of the following:
  • P is the transmit power
  • i is the sequence number of the time unit used by the beam
  • P cmax (i) is the maximum transmit power of the first communication device
  • P 0 is the target received power of the second communication device
  • PL propagation The amount of compensation for loss
  • delta is the power compensation offset
  • M is the number of resource blocks used by the beam
  • ⁇ is the partial power adjustment coefficient.
  • the first communications device can calculate the transmit power using a functional relationship as follows:
  • TXP P0+Pl_compensation+delta_tf+close_loop_fi;
  • TXP is the transmit power of the beam
  • P0 is the target received power
  • PL_compensation is the propagation loss that needs to be compensated
  • delta_tf is the power adjustment related to the transmission format
  • close_loop_fi is the part of closed-loop power control
  • Offset_beam_index indicates the power compensation offset used on different beams
  • Delta_fi is the base station that controls the parameters according to the error rate of the uplink data transmission, uses the same parameters between different beams, and accumulates the parameters.
  • Delta_fi(i) f(i-1)+step(ik), where i represents the current time; the function of the power step represented by step (ik); ik is the time at which the transmit power control (TPC) command is received For example, the ik is the time at which the TPC command to calculate the power step is received.
  • TPC transmit power control
  • TXP P0+Pl_compensation+delta_tf+offset_beam_index+delta_fi;
  • Offset_beam_index may be one of the parameters offset ⁇ offset_beam_1, .., offset_beam_N ⁇ within a set.
  • the offset ⁇ information is obtained by long-term statistics of the base station.
  • the base station informs the UE of the specific set information through the configuration information, and informs the UE of which specific offset_beam_x is selected according to the additional fast signaling information.
  • the fast signaling information may be directly configured by the base station by using downlink scheduling signaling, such as uplink scheduling information of the UE.
  • the first communication device may also be notified by special signaling.
  • FIG. 6 is a beam interaction of a power compensation offset for performing wave interference based on a beam index between a base station and a UE.
  • the embodiment provides a power control method for a beam, which is applied to a second communication device, and includes:
  • Step S210 Send a query index or a power compensation offset, where the query index is used by the first communications device to determine the power offset offset; wherein at least one of the power offset offsets is used to target The power adjustment amount of the beam for power compensation.
  • the method may further include:
  • Step S220 Receive a beam sent by the first communications device, where the transmit power of the beam is calculated by the first communications device based on the determined power offset offset.
  • the method in this embodiment may be a method applied to the second communication device.
  • the second communication device Before receiving the beam sent by the first communication device, the second communication device directly informs the UE of the power compensation offset, or informs the UE to determine the query index of the power compensation offset.
  • a beam transmitted by the first communication device using the transmit power calculated by the power compensated offset is then received.
  • the beam transmitted by the first communication device is compensated for by the power compensation offset due to the interference condition, so that the reception quality of the second communication device can be ensured, and the reception effect is good.
  • the query index includes at least one of the following:
  • An offset index configured to query a power compensation offset set corresponding to the offset index
  • a beam index configured to query a power compensation offset set corresponding to the beam index.
  • the offset index is an index that specifically queries the power compensation offset, and in some embodiments, it has a corresponding relationship with the beam index.
  • the index used by the power compensation offset set is queried, and the beam index is multiplexed, so that the number of indexes can be reduced, and the correspondence between the beam index and the offset index is unnecessary.
  • the issuance of the beam index may also be used to indicate to the first communication device a beam that transmits information to the second communication device; thereby implementing two indications of one signaling, reducing signaling overhead.
  • the method further includes:
  • the second communication device further sends the power compensation offset set in advance, so that the first communications device can receive the power compensation offset set, thereby pre-storing the Power compensation offset set.
  • the embodiment provides a communication device, where the communication device is a first communication device, and includes:
  • the determining unit 110 is configured to determine a power compensation offset, wherein the power compensation offset is used for power adjustment of power compensation for the beam;
  • the calculating unit 120 is configured to calculate a transmit power of the beam according to the at least one of the power compensation offsets.
  • the first communication device in this embodiment may be various types of terminals, such as a mobile phone, a tablet computer, a wearable device, an Internet of Things terminal, an in-vehicle terminal, or a virtual reality device.
  • the determining unit 110 may correspond to a receiving antenna or the like, and may receive the power compensation offset directly from the second communications device, or may determine the power offset offset by a local query corresponding to the processor.
  • the computing unit 120 can correspond to various calculators or processors having computing functions that can be used to calculate the transmit power.
  • the determining unit 110 is configured to receive a query index from the second communication device, and query the power compensation offset according to the query index; or receive the received from the second communication device The power compensation offset.
  • the determining unit 110 may include:
  • the receiving module may be corresponding to the receiving antenna, and configured to receive an offset index sent by the second communications device;
  • the query module may be corresponding to the processor, and may be configured to use the offset index as a query to obtain the power compensation offset according to a pre-acquired power compensation offset set.
  • the receiving module is configured to receive a beam index sent by the second communications device
  • the querying module is specifically configured to query the pre-acquired power compensation offset set by using the beam index as a query basis, and obtain the power compensation offset.
  • the first communications device further includes:
  • the first receiving unit may be configured to receive the power compensation offset set sent by the second communications device, corresponding to the receiving antenna.
  • the calculating unit 120 is configured to calculate the closed loop power control adjustment amount by using the power compensation offset as a closed loop power control parameter, and calculate the transmit power based on the closed loop power value.
  • the computing unit 120 is configurable to
  • P is the transmit power
  • i is the sequence number of the time unit used by the beam
  • P cmax (i) is the maximum transmit power of the first communication device
  • P 0 is the target received power of the second communication device
  • delta is the power compensation offset
  • M is the number of resource blocks used by the beam; For partial power adjustment factor.
  • the power offset offset comprises at least one of:
  • the deltaTF index (i) is a first power adjustment amount corresponding to the transmission format adopted by the beam based on the i and index queries;
  • f(i) index is a second closed loop power adjustment amount of the beam based on i and index query
  • deltaTF(i) is a second power adjustment amount corresponding to a transmission format adopted by the beam based on index and i query;
  • f(i) is a second closed loop power adjustment amount of the beam based on i being queried
  • Offset index (i) is the amount of power adjustment based on index and i for the query.
  • Index is a query index of the power compensation offset, where index is a query index of the power compensation offset, and i is a sequence number of a time unit used by the beam.
  • the computing unit 120 can be configured to calculate the transmit power by one of the following equations:
  • P is the transmit power
  • P cmax (i) is the maximum transmit power of the first communication device
  • P 0 is the target received power of the second communication device
  • PL is the compensation amount of the propagation loss
  • delta is the power compensation Offset
  • M is the number of resource blocks used by the beam
  • ⁇ is a partial power adjustment factor.
  • the receiving module may be configured to receive physical layer signaling that is sent by the second communications device and that carries the query index.
  • the first receiving unit may be configured to receive high layer signaling that is sent by the second communications device and that carries the set of power compensation offsets.
  • the embodiment further provides another communication device, where the communication device is a second communication device, including:
  • the second sending unit 210 may be configured to send a query index or a power compensation offset, where the query index is used by the first communications device to determine a power offset offset of the beam; at least one of the power offset offsets , the amount of power adjustment used for power compensation for the beam.
  • the method further includes:
  • the second receiving unit 220 is configured to receive the beam sent by the first communications device, where the transmit power of the beam is calculated by the first communications device based on the determined power offset offset.
  • the second sending unit 210 may correspond to a transmitting antenna, and may be configured to send the query index or the power compensation offset.
  • the second receiving unit 220 may be configured to receive a beam sent by the first communications device, corresponding to the receiving antenna.
  • the query index includes at least one of the following: an offset index for querying a power compensation offset set corresponding to the offset index, and a beam index for querying power compensation corresponding to the beam index Offset collection.
  • the second transmitting unit 210 is further configurable to transmit the set of power compensation offsets.
  • the transmission of the power compensation offset set may facilitate the first communication device to pre-store the correspondence between the query index and the power compensation offset.
  • the second sending unit 210 is configured to send high layer signaling carrying the power compensation offset set.
  • the second sending unit 210 may be configured to send the query index or the power compensation offset by physical layer signaling.
  • the embodiment provides a communication device, which may be the foregoing first communication device or second communication device.
  • the communication device may include: a transceiver 310, a memory 320, a processor 330, and a computer program 340 stored on the memory 320 and executed by the processor 330;
  • the processor 330 is respectively connected to the transceiver 310 and the memory 320, and can be applied to one or more of the power control methods of the beam in the first communication device by executing the computer program 340, or applied to One or more of the power control methods of the beam in the second communication device
  • the transceiver 310 of this embodiment may correspond to various types of interfaces, such as a network interface or a transceiver antenna.
  • the memory 320 can include devices that store various information.
  • the processor 330 may include: a central processing unit, a microprocessor, a digital signal processor, an application processor, a programmable array or an application specific integrated circuit, etc., and may be applied to the first execution by computer executable instructions such as a computer program. In a power control method for a beam in a communication device.
  • the processor 330 can be coupled to the transceiver 310 and the memory 320 via a communication bus (e.g., an integrated circuit bus).
  • a communication bus e.g., an integrated circuit bus
  • the embodiment provides a computer storage medium, where the computer storage medium stores a computer program, and after the computer program is executed, can be applied to one or more of the power control methods of the beam in the first communication device, or an application. One or more of the power control methods of the beam in the second communication device.
  • the computer storage medium may be: a removable storage device, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program code. Selected as a non-transitory storage medium or a non-volatile storage medium.
  • the proposal of the present application proposes a power control method under high frequency multi-beam for the above problem.
  • the terminal calculates the uplink transmit power according to the following manner.
  • TXP P0+Pl_compensation+delta_tf+close_loop_fi;
  • P0 is the target received power
  • PL_compensation is the propagation loss that needs to be compensated
  • delta_tf is the power adjustment related to the transmission format
  • close_loop_fi is the part of closed-loop power control
  • TXP P0+Pl_compensation+delta_tf+offset_beam_index+delta_fi;
  • Delta_fi is a base station that controls parameters according to indicators such as the bit error rate of uplink data transmission, uses the same parameters between different beams, and accumulates parameters.
  • Delta_fi(i) f(i-1)+step(i-k), where K represents a TPC command before K time units.
  • Offset_beam_index represents the power offset offset used on different beams.
  • Offset_beam_index can be a parameter in the set offset ⁇ offset_beam_1,..,offset_beam_N ⁇ .
  • the offset ⁇ information is obtained by long-term statistics of the base station.
  • the base station informs the UE of the specific set information through the configuration information, and informs the UE of which specific offset_beam_x is selected according to the additional fast signaling information.
  • the fast-dead signaling information may be directly configured by the base station by using downlink scheduling signaling, such as uplink scheduling information of the UE, or may be notified to the terminal through dedicated signaling.
  • the offset ⁇ may be the interference energy received by the base station on each beam, with different interference levels for each beam. This parameter is obtained based on the statistics of the base station on multiple beams.
  • the offset ⁇ can inform the terminal through long-term signaling.
  • the terminal determines the interference level to be considered in the uplink power control according to the beam information to be used for the subsequent uplink indicated in the downlink control information of the base station.
  • the interference levels of different beams can be informed to the UE by other means.
  • the base station configures a set of power compensation offset values offset ⁇ offset_1, ..offset_N ⁇ for different beam reception through RRC signaling.
  • the terminal performs uplink sounding reference signal (SRS) or physical uplink shared channel (PUSCH) information and physical information according to the information of the base station receiving beam, such as the identifier (id), the resource location, and the port number, which are required to be used in the uplink sending command.
  • SRS uplink sounding reference signal
  • PUSCH physical uplink shared channel
  • the offset value corresponding to the beam is used in the transmission power.
  • the base station may also use special signaling to tell the UE which specific offset value to use instead of transmitting with the base station downlink scheduling signaling.
  • this offset can be the resulting interference parameter measured by the base station on each beam.
  • this offset may be the resulting interference parameter measured by the base station on each beam.
  • compensation can be performed in a manner that directly indicates the level of interference by signaling.
  • the power control method of the beam provided by the example of the present disclosure can solve the problem that the interference level of different uplink receiving beams is different at the base station side by introducing the power compensation offset, and the power convergence can achieve fast convergence of the uplink closed loop power control. Better transmission efficiency.
  • the disclosed apparatus and methods may be implemented in other ways.
  • the device examples described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined, or Integrate into another system, or some features can be ignored or not executed.
  • the coupling, or direct coupling, or communication connection of the components shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical, mechanical or other forms. of.
  • the units described above as separate components may or may not be physically separated, and the components displayed as the unit may or may not be physical units, that is, may be located in one place or distributed to multiple network units; Some or all of the units may be selected according to actual needs to achieve the purpose of the present example.
  • each functional unit in each embodiment of the present disclosure may be integrated into one processing module, or each unit may be separately used as one unit, or two or more units may be integrated into one unit;
  • the unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed.
  • the foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a removable storage device, a ROM, a RAM, a magnetic disk, or an optical disk, and the like, which can store program codes.

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

Abstract

Les modes de réalisation de invention concernent un procédé de commande de puissance de faisceau, un dispositif de communication et un support d'informations. Le procédé de commande de puissance de faisceau est mis en œuvre dans un premier dispositif de communication et comprend les étapes consistant : à déterminer des décalages de compensation de puissance, au moins l'un des décalages de compensation de puissance étant utilisé pour une quantité de réglage de puissance en vue d'une compensation de puissance de faisceau; et à calculer une puissance d'émission des faisceaux en fonction dudit décalage de compensation de puissance.
PCT/CN2018/100533 2017-11-14 2018-08-14 Procédé de commande de puissance de faisceau, dispositif de communication et support d'informations WO2019095755A1 (fr)

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CN103391607A (zh) * 2012-05-11 2013-11-13 华为技术有限公司 测量参考信号的功率控制方法、装置和系统
CN103945504A (zh) * 2013-01-18 2014-07-23 华为技术有限公司 功率控制方法及设备
CN105792343A (zh) * 2014-12-23 2016-07-20 上海无线通信研究中心 无线通信系统中天线波束功率调整的干扰协调方法
WO2017162180A1 (fr) * 2016-03-23 2017-09-28 中兴通讯股份有限公司 Procédé et dispositif de commande de puissance en boucle ouverte

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KR102008467B1 (ko) * 2012-12-27 2019-08-07 삼성전자주식회사 빔포밍 기반 무선 통신시스템의 상향링크 전력 제어 방법 및 장치
KR102179044B1 (ko) * 2014-08-08 2020-11-16 삼성전자 주식회사 무선 통신 시스템에서 수신 빔 이득 조정 장치 및 방법
CN113473585A (zh) * 2016-02-24 2021-10-01 诺基亚通信公司 用于上行链路发送功率控制方法、装置和计算机可读存储介质
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CN103391607A (zh) * 2012-05-11 2013-11-13 华为技术有限公司 测量参考信号的功率控制方法、装置和系统
CN103945504A (zh) * 2013-01-18 2014-07-23 华为技术有限公司 功率控制方法及设备
CN105792343A (zh) * 2014-12-23 2016-07-20 上海无线通信研究中心 无线通信系统中天线波束功率调整的干扰协调方法
WO2017162180A1 (fr) * 2016-03-23 2017-09-28 中兴通讯股份有限公司 Procédé et dispositif de commande de puissance en boucle ouverte

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