WO2018143778A1 - Procédé et appareil de commande de puissance dans un système de communication sans fil - Google Patents

Procédé et appareil de commande de puissance dans un système de communication sans fil Download PDF

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Publication number
WO2018143778A1
WO2018143778A1 PCT/KR2018/001588 KR2018001588W WO2018143778A1 WO 2018143778 A1 WO2018143778 A1 WO 2018143778A1 KR 2018001588 W KR2018001588 W KR 2018001588W WO 2018143778 A1 WO2018143778 A1 WO 2018143778A1
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Prior art keywords
service
transmission power
data
power
transmission
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PCT/KR2018/001588
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English (en)
Inventor
Jingxing Fu
Chen QIAN
Bin Yu
Qi XIONG
Original Assignee
Samsung Electronics Co., Ltd.
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Priority claimed from CN201710089495.3A external-priority patent/CN108401284A/zh
Application filed by Samsung Electronics Co., Ltd. filed Critical Samsung Electronics Co., Ltd.
Publication of WO2018143778A1 publication Critical patent/WO2018143778A1/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
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
    • H04W52/346—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading distributing total power among users or channels
    • 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
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
    • 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
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/146—Uplink power control

Definitions

  • the present disclosure relates to radio communications, and particularly to a method and user equipment for transmitting uplink data having different priorities.
  • the 5G or pre-5G communication system is also called a 'Beyond 4G Network' or a 'Post Long Term Evolution (LTE) System'.
  • the 5G communication system is considered to be implemented in higher frequency (mmWave) bands, e.g., 28GHz or 60GHz bands, so as to accomplish higher data rates.
  • mmWave e.g., 28GHz or 60GHz bands
  • MIMO massive multiple-input multiple-output
  • FD-MIMO Full Dimensional MIMO
  • array antenna an analog beam forming, large scale antenna techniques are discussed in 5G communication systems.
  • RANs Cloud Radio Access Networks
  • D2D device-to-device
  • wireless backhaul moving network
  • cooperative communication Coordinated Multi-Points (CoMP), reception-end interference cancellation and the like.
  • CoMP Coordinated Multi-Points
  • FSK Hybrid frequency shift keying
  • FQAM quadrature amplitude modulation
  • SWSC sliding window superposition coding
  • ACM advanced coding modulation
  • FBMC filter bank multi carrier
  • NOMA non-orthogonal multiple access
  • SCMA sparse code multiple access
  • a method for controlling power in a communication system includes:
  • the allocating transmission power for corresponding signals of the respective services according to the priorities of power allocation corresponding to the signals of the respective services includes:
  • the allocating transmission power for corresponding signals of the respective services according to the priorities of power allocation corresponding to the signals of the respective services includes:
  • the determining transmission power for the data of the second service according to whether to transmit the data of the first service includes:
  • calculating the transmission power for the data of the first service according to the first approach includes: calculating the transmission power for the data of the first service by assuming to use the maximum transmission power of the UE to transmit the data of the first service; and calculating the transmission power for the data of the second service according to the first approach includes: calculating the transmission power for the data of the second service by assuming to use remaining power which is obtained by using the maximum transmission power of the UE minus the transmission power for the data of the first service to transmit the data of the second service; and calculating the transmission power for the data of the second service according to the second approach includes: calculating the transmission power for the data of the second service by assuming to use the maximum transmission power of the UE to transmit the data of the second service.
  • the signals of the respective services include signals of two services having different levels of importance
  • the two services if a time of deciding whether to transmit data of a first service is before a transmission of data of a second service starts and has a time interval smaller than a preset t1 with the transmission of the data of the second service, or if the time of deciding whether to transmit the data of the first service is after the transmission of the data of the second service starts, the allocating transmission power for corresponding signals of the respective services according to the priorities of power allocation corresponding to the signals of the respective services includes:
  • determining the transmission power for the data of the second service according to whether to transmit the data of the first service, when a priority of power allocation of the data of the first service is higher than a priority of power allocation of the data of the second service;
  • the first service is a service of the two services, a resource of which is preconfigured
  • the second service is a service of the two services, a resource of which is dynamically scheduled, t1 ⁇ 0.
  • the determining the transmission power for the data of the second service according to whether to transmit the data of the first service includes:
  • transmission power for the data of the first service and transmission power for the data of the second service respectively according to two set approaches; when deciding to transmit the first service, using transmission power for the data of the first service calculated according to a first approach as the transmission power for the first service, at overlapping transmission times when transmissions of the first service and the second service overlap, using transmission power for the data of the second service calculated according to the first approach as the transmission power for the second service, and at non-overlapping transmission times when the transmissions of the first service and the second service do not overlap, using transmission power for the data of the second service calculated according to the second approach as the transmission power for the second service; and when deciding not to transmit the first service, using transmission power for the data of the second service calculated according to the second approach as the transmission power for the second service;
  • the determining the transmission power for the data of the second service according to whether to transmit the data of the first service includes:
  • the calculating the transmission power for the data of the first service according to the first approach includes: calculating the transmission power for the first service by assuming to use the maximum transmission power of the UE to transmit the data of the first service; and the calculating the transmission power for the data of the second service according to the second approach includes: calculating the transmission power for the data of the second service by assuming to use the maximum transmission power of the UE to transmit the data of the second service.
  • calculating the transmission power needed by the data of the second service according to the first approach includes: using remaining power which is obtained by using the maximum transmission power of the UE minus the preset Pr(i) as the maximum transmission power to calculate the transmission power P(i)_2 needed by the data of the second service, if P1 ⁇ Pr(1), then using the transmission power P(1)_2 as the transmission power for the data of the second service; if Pr(i-1) ⁇ P1 ⁇ Pr(i), using the transmission power P(i)_2 as the transmission power for the data of the second service; and if P1>Pr(M), then using 0 as the transmission power for the data of the second service; and the calculating the transmission power needed by the data of the second service according to the second approach includes: calculating the transmission power needed by the data of the second service by assuming to use the maximum transmission power of the UE to transmit the data of the second service; and when i ⁇ j,
  • the allocating transmission power for corresponding signals of the respective services according to the priorities of power allocation corresponding to the signals of the respective services includes:
  • calculating the transmission power needed by the data of the second service according to the first approach includes: using the remaining power which is obtained by using the maximum transmission power of the UE minus preset Pr(i) as maximum transmission power to calculate transmission power P(i)_2 needed by the data of the second service, if P1 ⁇ Pr(1), using transmission power P(1)_2 as the transmission power for the data of the second service; if Pr(i-1) ⁇ P1 ⁇ Pr(i), then using the transmission power P(i)_2 as the transmission power for the data of the second service; and if P1>Pr(M), then using 0 as the transmission power for the data of the second service; and calculating the transmission power needed by the data of the second service according to the second approach includes: calculating the transmission power needed by the data of the second service by assuming to use the maximum transmission power of the UE to transmit the data of the second service; and when i ⁇ j, Pr(i)
  • a way of determining power of respective resource elements (REs) bearing the PUSCH includes the following:
  • the transmission power for the second service is the transmission power A;
  • the transmission power for the second service is the transmission power A;
  • the data and the UCI are modulated using a first mode of modulation, then based on the transmission power B, and according to the difference between A and B, reducing the power of the REs for transmitting the data and the power of the REs for transmitting the UCI on the PUSCH at the same ratio, so that the transmission power of the PUSCH is A; and if the data and the UCI are modulated using a second mode of modulation, then based on the transmission power B, reducing the number of REs on the PUSCH, and keeping power of remaining REs unchanged, so that the transmission power of the PUSCH is A;
  • the determining the power of the respective REs according to whether the PUSCH contains UCI at the overlapping transmission times includes:
  • the PUSCH contains only data and contains no UCI at the overlapping transmission times, then based on the transmission power B, according to the difference between A and B, reducing power of REs for transmitting the data on the PUSCH, so that the transmission power of the PUSCH is A; and if the PUSCH contains UCI at any overlapping transmission time, then based on the transmission power B, reducing the number of REs for transmitting the data on the PUSCH, and keeping power of remaining REs unchanged, so that the transmission power of the PUSCH is A, and if even if the number of REs for transmitting the data is 0, the transmission power of the PUSCH is still larger than A, then reducing power of REs for transmitting the UCI on the PUSCH, so that the transmission power of the PUSCH is A, or reducing the number of REs for transmitting the data on the PUSCH, and keeping power of remaining REs unchanged, so that the transmission power of the PUSCH is A, or reducing the transmission power of the first service, so that the sum
  • any OFDM symbol on the PUSCH at the overlapping transmission times if the OFDM symbol contains only data and contains no UCI, then based on the transmission power B, according to the difference between A and B, reducing power of REs for transmitting the data in the OFDM symbol, so that the transmission power of the PUSCH is A; and if the OFDM symbol contains UCI, then based on the transmission power B, reducing the number of REs for transmitting the data in the OFDM symbol, and keeping power of remaining REs unchanged, so that the transmission power of the PUSCH is A, and if even if the number of REs for transmitting the data is 0, the transmission power of the PUSCH is still larger than A, then reducing power of REs for transmitting the UCI in the OFDM symbol, so that the transmission power of the PUSCH is A, or reducing the number of REs for transmitting the data on the PUSCH, and keeping power of remaining REs unchanged, so that the transmission power of the PUSCH is A, or reducing the transmission power of the
  • any OFDM symbol of the PUSCH at the overlapping transmission times if the OFDM symbol at the overlapping transmission times contains only data and contains no UCI, then based on the transmission power B, according to the difference between A and B, reducing the power of the REs for transmitting the data in the OFDM symbol, so that the transmission power of the PUSCH is A; and if the OFDM symbol contains UCI at the overlapping transmission times, then based on the transmission power B, reducing the power of REs for transmitting the data in the OFDM symbol, so that the transmission power of the PUSCH is A, and if even if the power of the REs for transmitting data in the OFDM symbol is 0, the transmission power of the OFDM symbol is still larger than A, then reducing power of REs for transmitting the UCI in the OFDM symbol, so that the transmission power of the PUSCH being A, or reducing the number of REs for transmitting the data on the PUSCH, and keeping power of remaining REs unchanged, so that the transmission power of the PUSCH is
  • a way of determining power of respective REs bearing the PUSCH includes:
  • the determining the power of the respective REs according to a mode of modulation of the data and the UCI on the PUSCH includes:
  • the transmission power B if the data and the UCI are modulated using a first mode of modulation, then based on the transmission power B, according to the difference between A and B, reducing the power of the REs for transmitting the data and the power of the REs for transmitting the UCI on the PUSCH at the same ratio, so that the transmission power of the PUSCH is A; and if the data and the UCI are modulated using a second mode of modulation, then based on the transmission power B, setting a part of modulation symbols on the PUSCH to 0, and then performing transform precoding, so that the transmission power of the PUSCH is A;
  • the determining the power of the respective REs according to whether the PUSCH contains UCI at the overlapping transmission times includes:
  • the PUSCH contains only data and contains no UCI at the overlapping transmission times, then based on the transmission power B, according to the difference between A and B, reducing the power of REs for transmitting the data on the PUSCH, so that the transmission power of the PUSCH is A; and if the PUSCH contains UCI at any overlapping transmission time, then based on the transmission power B, setting a part of or all modulation symbols of the data on the PUSCH to 0, and then performing transform precoding, so that the transmission power of the PUSCH is A, and if the transmission power of the PUSCH is still A after setting all the modulation symbols of the data to 0, reducing the power of REs for transmitting the UCI, or setting a part of modulation symbols of the UCI to 0, so that the transmission power of the PUSCH is A, or reducing the transmission power of the first service, so that the sum of the transmission power of the first service and the transmission power of the second service at the overlapping transmission times is smaller than or equal to the maximum transmission power of the UE
  • any SC-FDM symbol of the PUSCH at the overlapping transmission times if the SC-FDM symbol contains only data, and contains no UCI, then based on the transmission power B, according the difference between A and B, reducing power of REs for transmitting the data and power of REs for transmitting the UCI in the SC-FDM symbol at the same ratio, so that the transmission power of the PUSCH is A; and if the SC-FDM symbol contains UCI, then based on the transmission power B, setting a part of or all modulation symbols of the data in the SC-FDM symbol to 0, and then performing transform precoding, so that the transmission power of the PUSCH is A, and if the transmission power of the PUSCH is still larger than A after setting all the modulation symbols of the data to 0, then reducing the power of the REs for transmitting the UCI in the SC-FDM, or setting a part of modulation symbols of the UCI in the SC-FDM to 0, so that the transmission power of the PUSCH is A, or reducing the
  • a user equipment (UE) in a communication system includes a priority determination unit and a power determination unit;
  • the priority determination unit is to determine priorities of power allocation for signals of respective services configured for the UE to be transmitted at a same time on physical channels, according to levels of importance of the respective services;
  • the power determination unit is to allocate transmission power for corresponding signals of the respective services according to the priorities of power allocation corresponding to the signals of the respective services.
  • the UE determines priorities of power allocation for the signals of the respective services according to level of importance of the respective services; and allocates transmission power for corresponding signals of the respective services according to the priorities of power allocation corresponding to the signals of the respective services.
  • the method is applicable to a system where a UE transmits at least two services having different priorities, and in a circumstance where the services of different priorities co-exist, the UE can allocation power according to an order of priorities within the maximum transmission power configured for the UE, so as to preferentially allocate power for a more important service, and preferentially guarantee the performance of the important service.
  • Various embodiments of the present disclosure provide an improved system performance.
  • FIG. 1 illustrates a wireless communication system according to various embodiments of the present disclosure
  • FIG. 2 illustrates the terminal in the wireless communication system according to various embodiments of the present disclosure
  • FIG. 3 illustrates the communication interface in the wireless communication system according to various embodiments of the present disclosure
  • FIG. 4 is a diagram showing a comparison between the length of a time slot for transmitting eMBB data and the length of a time slot for transmitting URLLC;
  • FIG. 5 is a schematic diagram of a flow of a method for controlling power according to the present disclosure
  • FIG. 6 is a schematic diagram showing a sum of transmission power needed by all signals
  • FIG. 8 is a schematic diagram of an assumption condition according to a Situation 2 of the present disclosure.
  • FIG. 9 is a schematic diagram of power allocation in a Method 3 according to the Situation 2 of the present disclosure.
  • FIG. 10 is a schematic diagram of power allocation in a Method 4 according to the Situation 2 of the present disclosure.
  • FIG. 11 is a schematic diagram of power allocation in Method 5 according to the Situation 2 of the present disclosure.
  • FIG. 12 is a schematic diagram of an assumption condition according to Situation 3 of the present disclosure.
  • FIG.13 is a schematic diagram of power allocation in Method 5 according to the Situation 3 of the present disclosure.
  • FIG.14 is a schematic diagram of an assumption condition according to a Situation 4 of the present disclosure.
  • FIG.15 is a schematic diagram of an assumption condition according to a Situation 5 of the present disclosure.
  • FIG.16 is a schematic diagram of a basic structure of a UE according to the present disclosure.
  • the present disclosure describes technology for controlling power in a wireless communication system.
  • FIG. 1 illustrates a wireless communication system according to various embodiments of the present disclosure.
  • a base station (BS) 110 a terminal 120, and a terminal 130 are illustrated as the part of nodes using a wireless channel in a wireless communication system.
  • FIG. 1 illustrates only one BS, but another BS, which is the same as or similar to the BS 110, may be further included.
  • the BS 110 is network infrastructure that provides wireless access to the terminals 120 and 130.
  • the BS 110 has coverage defined as a predetermined geographical region based on the distance at which a signal can be transmitted.
  • the BS 110 may be referred to as "access point (AP),” “eNodeB (eNB),” “5 th generation (5G) node,” “wireless point,” “transmission/reception Point (TRP)” as well as “base station.”
  • the BS 110, the terminal 120, and the terminal 130 may transmit and receive wireless signals in millimeter wave (mmWave) bands (for example, 28 GHz, 30 GHz, 38 GHz, and 60 GHz).
  • mmWave millimeter wave
  • the BS 110, the terminal 120, and the terminal 130 may perform beamforming.
  • the beamforming may include transmission beamforming and reception beamforming. That is, the BS 110, the terminal 120, and the terminal 130 may assign directivity to a transmission signal and a reception signal.
  • the BS 110 and the terminals 120 and 130 may select serving beams 112, 113, 121, and 131 through a beam search procedure or a beam management procedure. After that, communications may be performed using resources having a quasi co-located relationship with resources carrying the serving beams 112, 113, 121, and 131.
  • a first antenna port and a second antenna ports are considered to be quasi co-located if the large-scale properties of the channel over which a symbol on the first antenna port is conveyed can be inferred from the channel over which a symbol on the second antenna port is conveyed.
  • the large-scale properties may include one or more of delay spread, doppler spread, doppler shift, average gain, average delay, and spatial Rx parameters.
  • FIG. 2 illustrates the terminal in the wireless communication system according to various embodiments of the present disclosure.
  • a structure exemplified at FIG. 2 may be understood as a structure of the terminal 120 or the terminal 130.
  • the term "-module”, “-unit” or “-er” used hereinafter may refer to the unit for processing at least one function or operation, and may be implemented in hardware, software, or a combination of hardware and software.
  • the terminal 120 includes a communication interface 210, a storage unit 220, and a controller 230.
  • the communication interface 210 transmits and receives the signal as described above. Accordingly, the communication interface 210 may be referred to as a "transmitter,” a “receiver,” or a “transceiver.” Further, in the following description, transmission and reception performed through the wireless channel is used to have a meaning including the processing performed by the communication interface 210 as described above.
  • the controller 230 controls the general operation of the terminal 120. For example, the controller 230 transmits and receives a signal through the communication interface 210. Further, the controller 230 records data in the storage unit 220 and reads the recorded data.
  • the controller 230 may performs functions of a protocol stack that is required from a communication standard. According to another implementation, the protocol stack may be included in the communication interface 210. To this end, the controller 230 may include at least one processor or microprocessor, or may play the part of the processor. Further, the part of the communication interface 210 or the controller 230 may be referred to as a communication processor (CP).
  • CP communication processor
  • the controller 230 may determine priorities of power allocation corresponding to signals of respective services according to levels of the respective services and allocate transmission power for the signals of the respective services according to the priorities of power allocation. For example, the controller 230 may control the terminal to perform operations according to the exemplary embodiments of the present disclosure.
  • FIG. 3 illustrates the communication interface in the wireless communication system according to various embodiments of the present disclosure.
  • FIG. 3 shows an example for the detailed configuration of the communication interface 210 of FIG. 2. More specifically, FIG. 3 shows elements for performing beamforming as part of the communication interface 210 of FIG. 2.
  • the communication interface 210 includes an encoding and circuitry 302, a digital circuitry 304, a plurality of transmission paths 306-1 to 306-N, and an analog circuitry 308.
  • the digital circuitry 304 performs beamforming for a digital signal (for example, modulation symbols). To this end, the digital circuitry 304 multiples the modulation symbols by beamforming weighted values.
  • the beamforming weighted values may be used for changing the size and phrase of the signal, and may be referred to as a "precoding matrix" or a "precoder.”
  • the digital circuitry 304 outputs the digitally beamformed modulation symbols to the plurality of transmission paths 306-1 to 306-N.
  • the modulation symbols may be multiplexed, or the same modulation symbols may be provided to the plurality of transmission paths 306-1 to 306-N.
  • MIMO multiple input multiple output
  • the plurality of transmission paths 306-1 to 306-N convert the digitally beamformed digital signals into analog signals.
  • each of the plurality of transmission paths 306-1 to 306-N may include an inverse fast Fourier transform (IFFT) calculation unit, a cyclic prefix (CP) insertion unit, a DAC, and an up-conversion unit.
  • the CP insertion unit is for an orthogonal frequency division multiplexing (OFDM) scheme, and may be omitted when another physical layer scheme (for example, a filter bank multi-carrier: FBMC) is applied. That is, the plurality of transmission paths 306-1 to 306-N provide independent signal processing processes for a plurality of streams generated through the digital beamforming. However, depending on the implementation, some of the elements of the plurality of transmission paths 306-1 to 306-N may be used in common.
  • OFDM orthogonal frequency division multiplexing
  • a user equipment may transmit uplink data having different priorities at the same time in a serving cell, or the UE may transmit uplink data having different priorities at the same time in different serving cells, e.g., transmitting enhanced mobile broadband (eMBB) data and ultra reliability low latency communication (URLLC) data at the same time, and a priority for transmitting the URLLC data being higher than a priority for transmitting the eMBB data.
  • eMBB enhanced mobile broadband
  • URLLC ultra reliability low latency communication
  • the length of a time slot for transmitting the eMBB data may be different from the length of a time slot for transmitting the URLLC data.
  • a time slot for transmitting the eMBB data is longer than a time slot for transmitting the URLLC data, as shown in Fig.4.
  • a UE may transmit data having different priorities at the same time in a same uplink time slot or in an overlapping part of different uplink time slots, or in different serving cells or over different frequency bands in a same serving cell, and a sum of power needed by transmitting the data having the different priorities at the same time in multiple serving cells or in a same cell may be larger than the maximum transmission power configured for the UE. Therefore, how to allocate transmission power for services having different priorities is an issue yet to be studied.
  • Fig.5 shows a schematic diagram of a basic flow of the method. As shown in Fig.5, the method includes the following steps:
  • the UE determines priorities of power allocation corresponding to the signals of the respective services according to levels of importance of the respective services.
  • the UE allocates transmission power for corresponding signals of the respective services according to the priorities of power allocation corresponding to the signals of the respective services determined.
  • the UE may calculate transmission power needed for transmitting data of the services having different levels of importance within respective serving cells or within a same serving cell configured for the UE, and then determine transmission power corresponding to the data of the different signals within the respective serving cells or within the same serving cell, according to the sum of transmission power needed by the data of all the signals in all the serving cells or in the same serving cell and the maximum transmission power of the UE; and the UE transmits corresponding signals according to the transmission power for the signals.
  • the UE is configured to transmit two or more services having different levels of importance.
  • the UE is configured to transmit two services having different levels of importance, and for a case of more than two services, a similar method may apply.
  • the two services are respectively referred to as a first service and a second service.
  • the first service may be a URLLC service
  • the second service may be an eMBB service.
  • the level of importance of the first service is higher than that of the second service, and a priority for transmitting the first service is higher than that of the second service. That is to say, the priority of power allocation for the first service is higher than that of the second service.
  • the two services may be transmitted in different frequency bands of a serving cell, or may be transmitted in different serving cells.
  • the UE may need to transmit channel signals having different levels of importance. For example, the priority of a physical uplink control channel (PUCCH) for transmitting uplink control information is higher than that of a PUSCH for transmitting data, while the priority of a PUSCH transmission containing uplink control information is higher than that of a PUSCH transmission that does not contain uplink control information.
  • PUCCH physical uplink control channel
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • step 202 The method for determining transmission power of signals in step 202 will be further described in the following based on several situations.
  • the UE is able to calculate the power for signals on different channels in all serving cells in time. That is to say, a time interval from a time when the UE knows all parameters needed for power control calculation (e.g., for closed-loop control, the UE receives a transmission power command (TPC) and uplink resource allocation) to a time to transmit uplink data is larger than or equal to a threshold, and the UE performs power control using the following methods according to a result of power calculation.
  • TPC transmission power command
  • the UE transmits the respective signals according to transmission power calculated for the respective signals. In this way, under the circumstance where the transmission power of the UE is smaller than the maximum transmission power configured for the UE, the power needed by the respective signals are fully satisfied.
  • the UE sequentially allocates transmission power for the different service signals according to the priorities of power allocation of the different service signals, and then transmits the signals of the respective services according to the allocated transmission power.
  • the transmission power of the UE is larger than the maximum transmission power configured for the UE, the power needed by a service signal having a higher priority is preferentially satisfied, and a detail flow is as shown in Fig.7.
  • the UE is configured to transmit two services having different levels of importance, in which resources for the first service is preconfigured, but not dynamically scheduled, e.g., resources configured by higher layer signaling, orsemi-persistent scheduling (SPS) resources, and resources for the second service are dynamically scheduled; then the UE determines whether to transmit the first service according to the data of the services to be transmitted.
  • resources for the first service is preconfigured, but not dynamically scheduled, e.g., resources configured by higher layer signaling, orsemi-persistent scheduling (SPS) resources, and resources for the second service are dynamically scheduled; then the UE determines whether to transmit the first service according to the data of the services to be transmitted.
  • a time of deciding whether to transmit the first service is before the transmission of the second service starts and has an interval larger than or equal to t1 (t1 is larger than or equal to 0) and smaller than t2 (t2 is larger than t1) with the transmission of the second service, as shown in Fig
  • the method is to respectively calculate transmission power needed by the data of the first service and the data of the second service, and perform power allocation according to the transmission power needed by the data of the first service and the data of the second service when the sum of transmission power needed by the data of the first service and the data of second service is smaller than or equal to the maximum transmission power Pcmax configured for the UE; or sequentially allocate transmission power for the first service and the second service according to the priorities of power allocation of the first service and the second service from high to low when the sum of the transmission power needed by the data of the first service and the data of second service is larger than the maximum transmission power Pcmax configured for the UE.
  • the UE preferentially allocates power for a channel transmitting the data of the first service, and allocates remaining power for a channel transmitting the data of the second service. Even if the first service is not transmitted, the transmission power for the data of the second service is still the remaining power after the power allocation is performed for the channel transmitting the data of the first service, as the UE does not have enough time to recalculate power for the second service according to whether to transmit the first service. During the transmission in all time slots, the transmission power for the data of the first service and the data of the second service is unchanged.
  • the priority of power allocation of the first service is higher than that of the second service, and that the UE can determine the transmission power for the data of the second service according to whether to transmit the data of the first service.
  • the detailed methods are as follows.
  • the first step is to calculate transmission power for the data of the first service and the data of the second service separately according to preset two approaches in which the first approach is assuming that the data of the first service need to be transmitted, then power is preferentially allocated to a channel for transmitting the data of the first service, and that remaining power is allocated to a channel for transmitting the data of the second service; and the second approach is assuming that the data of the first service do not need to be transmitted, and that power is allocated to the channel for transmitting the data of the second service.
  • the first step is to calculate transmission power for the data of the first service and the data of the second service separately according to two approaches, in which the first approach is determining transmission power P1 for the data of the first service by assuming that the data of the first service need to be transmitted and power is preferentially allocated to a channel for transmitting the data of the first service, and determining transmission power P2 for the data of the second service by allocating remaining power after determining the transmission power P1 for the data of the first service to a channel for transmitting the data of the second service; and the second approach is determining transmission power P3 for the data of the second service by assuming that the data of the first service do not need to be transmitted and the power is allocated to the channel for transmitting the data of the second service.
  • the second step is to, at times when the first service and the second service overlap, transmit the data of the first service using the transmission power P1 calculated, and transmit the data of the second service using the transmission power P2 calculated according to the first approach, if the data of the first service need to be transmitted; and transmit the data of the second service using the transmission power P3 calculated using the second approach at times when the first service and the second service do not overlap, as shown in Fig.9. If the data of the first service do not need to be transmitted, the data of the second service are transmitted using the transmission power P3 calculated according to the second approach. In this way, the method of deciding the transmission power for the data of the second service according to whether to transmit the data of the first service can use the power more efficiently.
  • the transmission power for the data of the first service is unchanged, and the power for transmitting the data of the second service may be changing.
  • the first step is to calculate the transmission power P1 for the data of the first service by assuming that the data of the second service do not need to be transmitted and that power is allocated to the channel for transmitting the data of the first service, and calculate the transmission power P2 for the data of the second service by assuming that the data of the first service do not need to be transmitted and that the power is allocated to the channel for transmitting the data of the second service.
  • the second step is to transmit the data of the first service using the transmission power P1 calculated, if the data of the first service need to be transmitted; and at times when the first service and the second service overlap, if the sum of P1 and P2 is larger than the maximum transmission power of the UE, the UE only transmits the data of the first service, and does not transmit the data of the second service, as shown in Fig.10, and if the sum of P1 and P2 is smaller than or equal to the maximum transmission power of the UE, the UE transmits the data of the second service using the transmission power P2 calculated; and at times when the first service and the second service do not overlap, the UE transmits the data of the second service using the transmission power P2 calculated.
  • the data of the second service are transmitted using the transmission power P2 calculated. In this way, the method of deciding the power for transmitting the data of the second service according to whether to transmit the data of the first service can use the power more efficiently.
  • the transmission power for the data of the first service is unchanged, and a part of the data of the second service may not be transmitted.
  • the first step is to calculate the transmission power P1 for the data of the first service by assuming that the data of the second service do not need to be transmitted and that the power is allocated to the data of the first service, and calculate the transmission power P2 for the data of the second service by assuming that the data of the first service do not need to be transmitted and that the power is allocated to the data of the second service.
  • the first service is transmitted using the transmission power P1 calculated; before the transmission of first service starts, and at times when the first service and the second service do not overlap, the data of the second service are transmitted using the transmission power P2 calculated; and at times when the first service and the second service overlap, if the sum of P1 and P2 is larger than the maximum transmission power of the UE, then the UE only transmits the data of the first service, and at the times when the first service and the second service overlap and in a remaining part of a time slot for transmitting the second service, the data of the second service will not be transmitted, as shown in Fig.11; and if the sum of P1 and P2 is smaller than or equal to the maximum transmission power of the UE, the data of the second service are transmitted using the transmission power P2 calculated.
  • the data of the second service are transmitted using the transmission power P2 calculated. In this way, the method of deciding the transmission power for the data of the second service according to whether to transmit the data of the first service can use the power more efficiently.
  • the transmission power for the data of the first service is unchanged, and a part of the data of the second service may not be transmitted.
  • the UE is configured to transmit two services having different levels of importance, where the resources for the first service are preconfigured, not dynamically scheduled, e.g., resources configured by higher layer signaling, or SPS resources, and the resources for the second service are dynamically scheduled; then the UE determines whether to transmit the first service according to the data of the services to be transmitted.
  • a time of deciding whether to transmit the first service is before the transmission of the second service starts and has an interval smaller than t1(t1 is larger than or equal to 0) with the transmission of the second service, or the time of deciding whether to transmit the first service is after the transmission of the second service starts, as shown in Fig.12.
  • several processing methods are provided as follows.
  • the priority of power allocation of the first service is higher than that of the second service, and that the UE can determine the transmission power for the data of the second service according to whether to transmit the data of the first service.
  • the detailed methods are as follows.
  • the first step is to calculate transmission power for the data of the first service and the data of the second service separately according to preset two approaches, in which the first approach is determining transmission power P1 for the data of the first service by assuming that the data of the first service need to be transmitted and power is preferentially allocated to a channel for transmitting the data of the first service, and determining transmission power P2 for the data of the second service by allocating remaining power after determining the transmission power P1 for the data of the first service to a channel for transmitting the data of the second service; and the second approach is determining transmission power P3 for the data of the second service by assuming that the data of the first service do not need to be transmitted and the power is allocated to the channel for transmitting the data of the second service.
  • the second step is to, at times when the first service and the second service overlap, transmit the data of the first service using the transmission power P1 calculated, and transmit the data of the second service using the transmission power P2 calculated according to the first approach, if the data of the first service need to be transmitted; and transmit the data of the second service using the transmission power P3 calculated using the second approach at times when the first service and the second service do not overlap, as shown in Fig.9. If the data of the first service do not need to be transmitted, the data of the second service are transmitted using the transmission power P3 calculated according to the second approach. In this way, the method of deciding the transmission power for the data of the second service according to whether to transmit the data of the first service can use the power more efficiently.
  • the transmission power for the data of the first service is unchanged, and the power for transmitting the data of the second service may be changing.
  • the transmission power P1 for the data of the first service is calculated by assuming that the data of the second service do not need to be transmitted and that power is allocated to the transmission channel of the data of the first service
  • the transmission power P2 for the data of the second service is calculated by assuming that the data of the first service do not need to be transmitted and that power is allocated to the transmission channel of the data of the second service.
  • the first service is transmitted using the power P1 calculated; and at times when the first service and the second service overlap, if the sum of P1 and P2 is larger than the maximum transmission power Pcmax of the UE, then the UE only transmits the data of the first service and does not transmit data of the second service, and if the sum of P1 and P2 is smaller than or equal to the maximum transmission power Pcmax of the UE, then the UE transmits the data of the second service using the power P2 calculated; and at times when the first service and the second service do not overlap, the UE transmits the data of the second service using the power P2 calculated, as shown in Fig.10.
  • the power is more efficiently used when using the method of determining the power for the data of the second service according to whether the data of the first service need to be transmitted.
  • the transmission power of the data of the first service is unchanged, and a part of data of the second service may not be transmitted.
  • the first step is to calculate the transmission power P1 for the data of the first service by assuming that the data of the second service do not need to be transmitted and that the power is allocated to the data of the first service, and calculate the transmission power P2 for the data of the second service by assuming that the data of the first service do not need to be transmitted and that the power is allocated to the data of the second service.
  • the first service is transmitted using the transmission power P1 calculated; before the transmission of first service starts, and at times when the first service and the second service do not overlap, the data of the second service are transmitted using the transmission power P2 calculated; and at times when the first service and the second service overlap, if the sum of P1 and P2 is larger than the maximum transmission power of the UE, then the UE only transmits the data of the first service, and at the times when the first service and the second service overlap and in a remaining part of a time slot for transmitting the second service, the data of the second service will not be transmitted, as shown in Fig.11; and if the sum of P1 and P2 is smaller than or equal to the maximum transmission power Pcmax of the UE, the data of the second service are transmitted using the transmission power P2 calculated.
  • the data of the second service are transmitted using the transmission power P2 calculated. In this way, the method of deciding the transmission power for the data of the second service according to whether to transmit the data of the first service can use the power more efficiently.
  • the transmission power for the data of the first service is unchanged, and a part of the data of the second service may not be transmitted.
  • the first step is to calculate the transmission power P1 for the data of the first service by assuming that the data of the second service do not need to be transmitted and that power is allocated to the channel for transmitting the data of the first service, and calculate the transmission power P2 for the data of the second service by assuming that the data of the first service do not need to be transmitted and that the power is allocated to the channel for transmitting the data of the second service.
  • the UE transmits the data of the second service using the transmission power P2, and transmits the data of the first service using remaining power after the transmission power is allocated for the second service (i.e., the maximum transmission power Pcmax of the UE minus P2), as shown in Fig.13; and if the sum of P1 and P2 is smaller than or equal to the maximum transmission power of the UE, then the UE transmits the data of the second service using the transmission power P2 calculated, and transmits the data of the first service using the transmission power P1; and at times when the first service and the second service do not overlap, the UE transmits the data of the second service using the transmission power P2 calculated.
  • the data of the first service do not need to be transmitted, then the data of the second service are transmitted using the transmission power P2 calculated.
  • the method of deciding the transmission power for the data of the second service according to whether to transmit the data of the first service can use the power more efficiently.
  • the transmission power for the data of the first service is unchanged, and the transmission power for the data of the second service is unchanged.
  • the priority of the first service is higher than that of the second service, since the time of deciding to transmit the first service is after the transmission of the second service starts, only the present method can be used to guarantee that the power is unchanged during the transmission of the second service.
  • the UE is configured with two services having different levels of importance, and the two services are dynamically scheduled.
  • the priority for transmitting the data of the first service is higher than the priority for transmitting the data of the second service
  • UL DCI for scheduling the transmission of the data of the first service is before the transmission of the second service starts and has an interval larger than or equal to t1(t1 is larger than or equal to 1) and smaller than t2(t2 is larger than t1) with the transmission of the second service, as shown in Fig.14.
  • t1(t1 is larger than or equal to 1)
  • t2(t2 is larger than t1
  • a duration of t1 the UE may perform transmission according to transmission power calculated, and in a duration smaller than t2, the UE is not able to recalculate the power control.
  • there are several processing methods as follows. It is assumed that the priority of power allocation of the first service is higher than that of the second service.
  • the UE reserves a part Pr of the maximum transmission power of the UE to transmit the data of the first service, and uses the remaining part of power as the maximum transmission power of the UE to calculate the transmission power P2 for the data of the second service. If the transmission power P1 for the data of the first service calculated according to the power control of the first service is smaller than or equal to Pr, the data of the first service are transmitted using the transmission power P1, and the data of the second service are transmitted using the transmission power P2. If the transmission power P1 for the data of the first service calculated according to the power control of the first service is larger than Pr, then the data of the first service are transmitted using the transmission power P1, and the data of the second service are not transmitted. During the transmission in all time slots, the transmission power of the data of the first service and the data of the second service is unchanged.
  • the power reserved for transmitting the data of the first service is respectively Pr(1), Pr(2), ..., Pr(M), and correspondingly the transmission power for the data of the second service is respectively P(1)_2, P(2)_2,...,P(M)_2. If the transmission power P1 for the data of the first service calculated according to the power control of the first service is smaller than or equal to Pr(1), then the data of the first service are transmitted using the transmission power P1, and the data of the second service are transmitted using the transmission power P(1)_2.
  • the transmission power P1 for the data of the first service calculated according to the power control of the first service is smaller than or equal to Pr(i) and larger than Pr(i-1)
  • the data of the first service are transmitted using the transmission power P1
  • the data of the second service are transmitted using the transmission power P(i)_2.
  • the transmission power P1 for the data of the first service calculated according to the power control of the first service is larger than Pr(M)
  • the data of the first service are transmitted using the transmission power P1
  • the data of the second service are not transmitted.
  • the transmission power for the data of the first service and the data of the second service is unchanged.
  • the first step is to calculate transmission power for the data of the first service and data of the second service respectively according to two approaches in which the first approach is that the UE reserves M parts (respectively ⁇ Pr(1), Pr(2), ..., Pr(M) ⁇ , and when i>j, Pr(i)>Pr(j)) of the maximum transmission power of the UE for transmitting the data of the first service, and the UE uses remaining parts of the maximum transmission power of the UE as the maximum transmission power of the UE to calculate the transmission power for the data of the second service, and the remaining parts of the maximum transmission power of the UE are respectively P(1)_2, P(2)_2,...,P(M)_2, where M is a positive integer larger than or equal to 1, configured by higher layer signaling or preset by a protocol.
  • the second approach is assuming that the data of the first service do not need to be transmitted, and that power P2 is allocated to a transmission channel of the data of the second service.
  • the transmission power P1 for the data of the first service calculated according to the power control of the first service is smaller than Pr(1), then the data of the first service are transmitted using the transmission power P1, and the data of the second service are transmitted using the power P(1)_2.
  • the transmission power P1 for the data of the first service calculated according to the power control of the first service is smaller than or equal to Pr(i) and larger than Pr(i-1)
  • the data of the first service are transmitted using the transmission power P1
  • the data of the second service are transmitted using the transmission power P(i)_2.
  • the transmission power P1 for the data of the first service calculated according to power control of the first service is larger than Pr(M)
  • the data of the first service are transmitted using the transmission power P1
  • the data of the second service are not transmitted; at times when the first service and the second service do not overlap, the data of the second service are transmitted using the transmission power P2 calculated according to the second approach.
  • the transmission power of the first service is unchanged, and the transmission power of the second service may be changing.
  • the UE is configured to transmit two services having different levels of importance, and the two services are dynamically scheduled.
  • DCI that schedules the transmission of the data of the first service is before the transmission of the second service starts and has an interval smaller than t1(t1 is larger than or equal to 0) with the transmission of the second service, or the time of deciding whether to transmit the first service is after the transmission of the second service starts, as shown in Fig.15.
  • t1(t1 is larger than or equal to 0) with the transmission of the second service
  • Fig.15 there are several processing methods as follows. It is assumed that the priority of power allocation of the first service is higher than that of the second service.
  • the UE reserves a part Pr of the maximum transmission power of the UE for transmitting the data of the first service, and uses a remaining part of the maximum transmission power as the maximum transmission power of the UE to calculate the transmission power P2 for the data of the second service. If the transmission power P1 for the data of the first service calculated according to the power control of the first service is smaller than or equal to Pr, then the data of the first service are transmitted using the transmission power P1, and the data of the second service are transmitted using the transmission power P2.
  • the UE calculates transmission power for the data of the first service and the data of the second service respectively according to two approaches in which the first approach is that the UE reserves M parts (respectively ⁇ Pr(1), Pr(2),...,Pr(M) ⁇ , when i>j, Pr(i)>Pr(j)) of the maximum transmission power of the UE for transmitting the data of the first service, and the UE uses the remaining parts as the maximum transmission power of the UE to calculate the transmission power for the data of the second service, and the remaining parts are respectively P(1)_2, P(2)_2,..., P(M)_2, where M is a positive integer larger than or equal to 1, configured by higher layer signaling or preset by a protocol.
  • M is a positive integer larger than or equal to 1, configured by higher layer signaling or preset by a protocol.
  • the transmission power P1 for the data of the first service calculated according to the power control of the first service is smaller than or equal to Pr(i) and larger than Pr(i-1)
  • the data of the first service are transmitted using the transmission power P1
  • the data of the second service are transmitted using the transmission power P(i)_2.
  • the transmission power P1 for the data of the first service calculated according to the power control of the first service is larger than Pr(M)
  • the data of the first service are transmitted using the transmission power P1, and the data of the second service are not transmitted; during the transmission in all time slots, the transmission power for the data of the first service is unchanged, and the transmission power for the data of the second service may be changing.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the transmission power for the second service may be lower than transmission power previously allocated for the second service
  • several methods as follows provided in the embodiment may be used to reduce the transmission power of the second service in a time duration when the first service and the second service overlap, so that the transmission power of the second service is the same with the transmission power allocated.
  • the second service is transmitted on a PUSCH using orthogonal frequency division multiplexing (OFDM), then seven methods as follows may be used to reduce the transmission power of the second service. It is assumed that the transmission power for the second service at the overlapping transmission times determined is A, and the transmission power for the second service previously determined is B.
  • OFDM orthogonal frequency division multiplexing
  • the method is to, based on the transmission power B, reduce the power of all resource elements (REs) for transmitting data and uplink control information (UCI) at the overlapping transmission times at the same ratio according to a difference between A and B until the transmission power for a PUSCH at the overlapping transmission times is A, so as to guarantee that the total power in the overlapping transmission duration is smaller than or equal to the maximum transmission power of the UE.
  • REs resource elements
  • UCI uplink control information
  • the second method is to, based on the transmission power B, reduce the number of REs for transmitting data and UCI within the overlapping transmission times, and keep the transmission power of each remaining RE unchanged, so as to reduce the power of the overall OFDM symbol, until the transmission power for the PUSCH at the overlapping transmission times is A, so as to guarantee that total power within the overlapping transmission times is smaller than or equal to the maximum transmission power of the UE.
  • Method 3 is a method of deciding to reduce power within the overlapping transmission times according to a mode of modulating the data and the UCI, and if the data and the UCI are modulated using a first mode of modulation (e.g., the data is modulated using the quadrature phase shift (QPSK) modulation, and the method in Method 1 described in the above is used to reduce the power in the overlapping time duration; and if the data and the uplink control information are modulated using a second mode of modulation (e.g., the data is modulated using the quadrature amplitude modulation (QAM), e.g., 16QAM), then the method in Method 2 described in the above is used to reduce the power in the overlapping time duration.
  • a first mode of modulation e.g., the data is modulated using the quadrature phase shift (QPSK) modulation
  • QPSK quadrature phase shift
  • Method 4 is a method of deciding to reduce power within the overlapping time duration according to whether the overlapping time duration contains only data or also contains UCI modulation symbols, and if the overlapping time duration contains only data, then the method in above Method 1 is used to reduce the power in the overlapping time duration; and if the overlapping time duration also contains UCI modulation symbols, then the method in above Method 2 is used to reduce the power in the overlapping time duration, and in this case, first the number of REs for transmitting data in the overlapping time duration should be reduced until the transmission power for the PUSCH in the overlapping time duration is A, so as to guarantee that total power within the overlapping time duration is smaller than or equal to the maximum transmission power of the UE.
  • one method is to continue to reduce the power of REs for transmitting the UCI modulation symbols or reduce the number of REs for transmitting the data and the UCI modulation symbols, and another method is to keep the power of the REs for transmitting the UCI modulation symbols unchanged, and reduce the power of the first service, so that the total power of the first service and the second service in the overlapping time duration is smaller than the maximum transmission power of the UE, and in this case, the transmission power of the PUSCH is no longer A.
  • the overlapping time duration is all continuous overlapping transmission times.
  • Method 5 is a method of deciding to reduce power within the overlapping time duration according to whether the overlapping transmission times contain only data, or also contain UCI symbols, and a unit of making the decision is an OFDM symbol. Specifically, if an OFDM symbol in the overlapping transmission times contains only data, then the method in Method 1 is used to reduce the power of the OFDM symbol in the overlapping transmission times, so that the transmission power of the PUSCH is A; and if an OFDM symbol in the overlapping transmission times also contains UCI modulation symbols, then the method in Method 2 is used to reduce the power of the OFDM symbol in the overlapping transmission times, and in this case, first the number of REs for transmitting data of the OFDM symbol in the overlapping transmission times is reduced, until the transmission power of the PUSCH in the overlapping transmission times is A, so as to guarantee that the overall power of the OFDM symbol is smaller than or equal to the maximum transmission power of the UE.
  • the transmission power of the PUSCH in the overlapping transmission times is still larger than A, i.e., the total power of the OFDM symbol is still larger than the maximum transmission power of the UE.
  • one method is to continue to reduce the power of the REs for transmitting the UCI modulation symbols of the OFDM symbol or reduce the number of REs for transmitting the data and the UCI modulation symbols, and another method is to keep the power of the REs for transmitting the UCI modulation symbols of the OFDM symbol unchanged, and reduce the power of the first service in the OFDM symbol.
  • Method 6 is a method of deciding to reduce power within the overlapping time duration according to whether the overlapping time duration only contains data, or also contains UCI modulation symbols. Specifically, if the overlapping time duration only contains data, the method in above Method 1 is used to reduce the power in the overlapping time duration; and if the overlapping time duration also contains UCI modulation symbols, then first the power of REs for transmitting the data in the overlapping time duration is reduced until the transmission power of the PUSCH within the overlapping time duration is A, so as to guarantee that the total power of the first service and the second service within the overlapping time duration is smaller than or equal to the maximum transmission power of the UE.
  • one method is to continue to reduce the power of REs for transmitting the UCI modulation symbols or reduce the number of REs for transmitting the data and the UCI modulation symbols, and another method is to keep the power of the REs for transmitting the UCI modulation symbols unchanged, and reduce the power of the first service.
  • one method is to continue to reduce the power of the REs for transmitting UCI modulation symbols of the OFDM symbol, and another method is to keep the power of the REs for transmitting the UCI modulation symbols of the OFDM symbol unchanged, and reduce the power of the first service of the OFDM symbol.
  • the overlapping time duration may contain multiple OFDM symbols
  • Method 4 ⁇ Method 7 there are two kinds of units of deciding whether UCI symbols are contained: one is using all OFDM symbols within the overall overlapping time duration as an entirety to determine whether the UCI symbols are contained, i.e., Method 4 and Method 6; and the other is using respective OFDM symbols in the overlapping time duration as independent units to determine whether UCI symbols are contained in a single OFDM symbol, i.e., Method 5 and Method 7.
  • the method is to, based on the transmission power B, according to a difference between A and B, reduce the power of all REs for transmitting data and UCI in the overlapping time duration at the same ratio until the transmission power of PUSCH in the overlapping transmission times is A, so as to guarantee that the total power in the overlapping transmission times is smaller than or equal to the maximum transmission power of the UE.
  • the method is to reduce the number of modulation symbols for transmitting data and UCI in the overlapping time duration, i.e., set modulation symbols of a part of data and UCI to 0, and then perform transform precoding, i.e., discrete Fourier transform (DFT) processing, so as to reduce the power of the overall OFDM symbol, until the transmission power of the PUSCH in the overlapping transmission times is A, so as to guarantee that the total power in the overlapping time duration is smaller than or equal to the maximum transmission power of the UE.
  • transform precoding i.e., discrete Fourier transform (DFT) processing
  • Detailed operation steps of the method is: assuming that a set of modulation symbols of data and UCI that need to be transmitted is ⁇ s 0 ,s 1 ,...,s N-1 ⁇ , modulation symbols of a part of data and UCI are set to 0, e.g., ⁇ s 0 ,s 1 ,...s M ,0...,0 ⁇ , i.e., setting s M+1 to s N-1 to 0, and the other modulation symbols are unchanged, so as to reduce the total power of the SC-FDM symbol, and since when the value of M is reduced, more modulation symbols will be set to 0, and the power of the SC-FDM symbol will be smaller, and thus, the value of M is reduced until the total power within the overlapping time duration is smaller than or equal to the maximum transmission power of the UE.
  • Method 3' is a method of deciding to reduce the power in the overlapping time duration according to a mode of modulating data and uplink control information. For example, if the data and the uplink control information are modulated using the first mode of modulation (e.g., the data is modulated using the quadrature phase shift (QPSK) modulation), then the method in above Method 1' is used to reduce the power in the overlapping time duration; and if the data and the uplink control information are modulated using the second mode of modulation (e.g., the data is modulated using the quadrature amplitude modulation, e.g., 16QAM), then above Method 2' is used to reduce the power in the overlapping time duration.
  • the first mode of modulation e.g., the data is modulated using the quadrature phase shift (QPSK) modulation
  • QPSK quadrature phase shift
  • Method 4' is a method of deciding to reduce the power in the overlapping time duration according to whether the overlapping time duration only contains data, or also contains UCI modulation symbols, and if the overlapping time duration contains only data, then the method in Method 1' is used to reduce the power in the overlapping time duration; and if the overlapping time duration contains UCI modulation symbols, then the method in Method 2' is used to reduce the power in the overlapping time duration, and in this case, first modulation symbols of a part or all of the data in the overlapping time duration are set to 0, until the transmission power of the PUSCH in the overlapping time duration is A, so as to guarantee that the total power in the overlapping time duration is smaller than or equal to the maximum transmission power of the UE.
  • one method is to continue to reduce the power of REs for transmitting UCI modulation symbols, or set modulation symbols of a part of UCI to 0, and another method is to keep the power of REs for transmitting the UCI modulation symbols unchanged, and reduce the power of the first service.
  • Method 5' is a method of deciding to reduce the power in the overlapping time duration according to whether the overlapping time duration contains only data or also contains UCI symbols, and a unit of making the decision is a SC-FDM symbol. Specifically, if a certain SC-FDM symbol in the overlapping transmission times contains only data, then the method in Method 1' is used to reduce the power of the SC-FDM symbol in the overlapping transmission times; and if a certain SC-FDM symbol in the overlapping transmission times contains UCI modulation symbols, then the method in Method 2' is used to reduce the power of the SC-FDM symbol in the overlapping transmission times, and in this case, first, the data modulation symbols of the SC-FDM symbol in the overlapping transmission times are set to 0, until the transmission power of the PUSCH in the overlapping transmission times is A, so as to guarantee that the total power of the SC-FDM symbol is smaller than or equal to the maximum transmission power of the UE.
  • the transmission power of the PUSCH in the overlapping transmission time duration is still larger than A, i.e., the total power of the SC-FDM symbol is still larger than the maximum transmission power of the UE, in this case, one method is to continue to reduce the power of the REs for transmitting the UCI modulation symbols of the SC-FDM symbol, or set a part of UCI modulation symbols to 0, and another method is to keep the power of the REs for transmitting the UCI modulation symbols of the SC-FDM symbol unchanged, and reduce the power of the first service of the SC-FDM symbol.
  • the priority determination unit is to determine priorities of power allocation for signals of respective services configured for the UE to be transmitted at a same time on physical channels, according to levels of importance of the respective services; and the power determination unit is to allocate transmission power for corresponding signals of the respective services according to the priorities of power allocation corresponding to the signals of the respective services.
  • a computer-readable storage medium for storing one or more programs (software modules) may be provided.
  • the one or more programs stored in the computer-readable storage medium may be configured for execution by one or more processors within the electronic device.
  • the at least one program may include instructions that cause the electronic device to perform the methods according to various embodiments of the present disclosure as defined by the appended claims and/or disclosed herein.
  • the programs may be stored in non-volatile memories including a random access memory and a flash memory, a read only memory (ROM), an electrically erasable programmable read only memory (EEPROM), a magnetic disc storage device, a compact disc-ROM (CD-ROM), digital versatile discs (DVDs), or other type optical storage devices, or a magnetic cassette.
  • ROM read only memory
  • EEPROM electrically erasable programmable read only memory
  • CD-ROM compact disc-ROM
  • DVDs digital versatile discs
  • any combination of some or all of the may form a memory in which the program is stored.
  • a plurality of such memories may be included in the electronic device.
  • the programs may be stored in an attachable storage device which is accessible through communication networks such as the Internet, Intranet, local area network (LAN), wide area network (WAN), and storage area network (SAN), or a combination thereof.
  • a storage device may access the electronic device via an external port.
  • a separate storage device on the communication network may access a portable electronic device.
  • a component included in the present disclosure is expressed in the singular or the plural according to a presented detailed embodiment.
  • the singular form or plural form is selected for convenience of description suitable for the presented situation, and various embodiments of the present disclosure are not limited to a single element or multiple elements thereof. Further, either multiple elements expressed in the description may be configured into a single element or a single element in the description may be configured into multiple elements.

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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 se rapporte à un système de communication de pré-5 ème génération (5G) ou de 5G destiné à prendre en charge des débits de données supérieurs à ceux d'un système de communication au-delà de la 4 ème génération (4G), tel qu'un système d'évolution à long terme (LTE). La présente invention concerne un procédé de commande de puissance dans un système de communication. Pour des signaux de services respectifs configurés pour un équipement utilisateur (UE) devant être transmis en même temps sur des canaux physiques, l'UE détermine des priorités d'attribution de puissance correspondant aux signaux des services respectifs en fonction des niveaux d'importance des services respectifs. Puis, l'UE attribue une puissance de transmission pour des signaux correspondants des services respectifs en fonction des priorités d'attribution de puissance correspondant aux signaux des services respectifs. L'utilisation de la présente invention permet d'effectuer une attribution de puissance plus efficacement.
PCT/KR2018/001588 2017-02-06 2018-02-06 Procédé et appareil de commande de puissance dans un système de communication sans fil WO2018143778A1 (fr)

Applications Claiming Priority (4)

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CN201710067254.9 2017-02-06
CN201710067254 2017-02-06
CN201710089495.3A CN108401284A (zh) 2017-02-06 2017-02-20 一种通信系统中的功率控制方法及用户设备
CN201710089495.3 2017-02-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112567823A (zh) * 2018-08-21 2021-03-26 高通股份有限公司 关于上行链路传输的临时功率调整指示

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030077350A (ko) * 2002-03-26 2003-10-01 삼성전자주식회사 범용 이동 통신 시스템에서 기지국의 송신 전력 할당 방법
US20030198209A1 (en) * 2002-04-18 2003-10-23 Thomas Schwengler CDMA device with automatic bit rate allocation
US7554937B2 (en) * 2002-11-20 2009-06-30 Electronics And Telecommunications Research Institute Adaptive packet transmission method for transmitting packets in multibeam satellite communication system
KR101287551B1 (ko) * 2008-05-30 2013-07-18 노키아 지멘스 네트웍스 오와이 통신 시스템 내에서의 리소스들의 할당
WO2015057212A1 (fr) * 2013-10-16 2015-04-23 Empire Technology Development, Llc Allocation de ressource de puissance et de fréquence dynamique avec gestion de politique granulaire

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030077350A (ko) * 2002-03-26 2003-10-01 삼성전자주식회사 범용 이동 통신 시스템에서 기지국의 송신 전력 할당 방법
US20030198209A1 (en) * 2002-04-18 2003-10-23 Thomas Schwengler CDMA device with automatic bit rate allocation
US7554937B2 (en) * 2002-11-20 2009-06-30 Electronics And Telecommunications Research Institute Adaptive packet transmission method for transmitting packets in multibeam satellite communication system
KR101287551B1 (ko) * 2008-05-30 2013-07-18 노키아 지멘스 네트웍스 오와이 통신 시스템 내에서의 리소스들의 할당
WO2015057212A1 (fr) * 2013-10-16 2015-04-23 Empire Technology Development, Llc Allocation de ressource de puissance et de fréquence dynamique avec gestion de politique granulaire

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112567823A (zh) * 2018-08-21 2021-03-26 高通股份有限公司 关于上行链路传输的临时功率调整指示

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