WO2020096663A1 - Commande de puissance de liaison montante dans une transmission multi-bande - Google Patents

Commande de puissance de liaison montante dans une transmission multi-bande Download PDF

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Publication number
WO2020096663A1
WO2020096663A1 PCT/US2019/042907 US2019042907W WO2020096663A1 WO 2020096663 A1 WO2020096663 A1 WO 2020096663A1 US 2019042907 W US2019042907 W US 2019042907W WO 2020096663 A1 WO2020096663 A1 WO 2020096663A1
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WO
WIPO (PCT)
Prior art keywords
power level
transmit power
frequency band
transmit
path loss
Prior art date
Application number
PCT/US2019/042907
Other languages
English (en)
Inventor
Zhigang Rong
Original Assignee
Futurewei Technologies, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Futurewei Technologies, Inc. filed Critical Futurewei Technologies, Inc.
Priority to PCT/US2019/042907 priority Critical patent/WO2020096663A1/fr
Priority to CN201980098684.4A priority patent/CN114144987B/zh
Publication of WO2020096663A1 publication Critical patent/WO2020096663A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • 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
    • H04W52/16—Deriving transmission power values from another channel
    • 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
    • H04W52/242—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account path loss
    • 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

Definitions

  • This disclosure relates to data transmission in a wireless communication systems and more specifically, to power control in multi-band transmission.
  • APs access points
  • STAs stations
  • WLAN wireless local area network
  • orthogonal frequency division multiple access OFDMA
  • SC-FDMA single carrier-frequency division multiple access FDMA
  • UL MU-MIMO uplink multi-user multiple input multiple output
  • WLAN Wireless Local Area Network
  • 3GPP Third Generation Partnership Project
  • LTE long term evolution
  • 5G NR 3GPP 5th generation new radio
  • the present disclosure describes power control processes in a multi-band transmission system.
  • a method for communicating in a wireless system includes: receiving, by a station, on a first frequency band, a wireless communication signal, where the wireless communication signal comprises a frame, the frame includes resource allocation information for a data transmission on the first frequency band and a second frequency band, the frame further includes a first indication indicating a first transmit power level of the wireless communication signal on the first frequency band, a second indication indicating a first target power level on the first frequency band, and a third indication indicating a second target power level on the second frequency band; determining, by the station, a second transmit power level and a third transmit power level based on the first target power level, the second target power level, and the first transmit power level; and transmitting, by the station, data using a first outgoing signal on the first frequency band based on the second transmit power level, and a second outgoing signal on the second frequency band based on the third transmit power level.
  • a station in a second implementation, includes a non-transitory memory storage comprising instructions and one or more hardware processors in communication with the memory storage, where the one or more hardware processors execute the instructions to: receive on a first frequency band, a wireless communication signal, where the wireless communication signal comprises a frame, the frame includes resource allocation information for a data transmission on the first frequency band and a second frequency band, the frame further includes a first indication indicating a first transmit power level of the wireless communication signal on the first frequency band, a second indication indicating a first target power level on the first frequency band, and a third indication indicating a second target power level on the second frequency band; determine a second transmit power level and a third transmit power level based on the first target power level, the second target power level, and the first transmit power level; and transmit data using a first outgoing signal on the first frequency band based on the second transmit power level, and a second outgoing signal on the second frequency band based on the third transmit power level.
  • a non-transitory computer-readable medium storing computer instructions, that when executed by one or more hardware processors, cause the one or more hardware processors to perform operations including receiving, by a station, on a first frequency band, a wireless communication signal, where the wireless communication signal comprises a frame, the frame includes resource allocation information for a data transmission on the first frequency band and a second frequency band, the frame further includes a first indication indicating a first transmit power level of the wireless communication signal on the first frequency band, a second indication indicating a first target power level on the first frequency band, and a third indication indicating a second target power level on the second frequency band; determining, by the station, a second transmit power level and a third transmit power level based on the first target power level, the second target power level, and the first transmit power level; and transmitting, by the station, data using a first outgoing signal on the first frequency band based on the second transmit power level, and a second outgoing signal on the second frequency band based on the third
  • the previously described implementation is implementable using a computer- implemented method; a non-transitory, computer-readable medium storing computer-readable instructions to perform the computer-implemented method; and a computer-implemented system comprising a computer memory interoperably coupled with a hardware processor configured to perform the computer-implemented method and the instructions stored on the non-transitory, computer-readable medium.
  • FIG. 1 illustrates an example communication system that performs a power control operation in a multi-band system, according to an implementation.
  • FIG. 2 illustrates example multi-band communication scenarios, according to various implementations.
  • FIG. 3 is a schematic diagram illustrating an example power control operation for multi-band transmissions, according to an implementation.
  • FIG. 4 is a schematic diagram illustrating another example power control operation for multi-band transmissions, according to an implementation.
  • FIG. 5 is a flow diagram illustrating an example method for power control in a multi-band operation, according to an implementation.
  • FIG. 6 is a schematic diagram illustrating an example triggering frame, according to an implementation.
  • FIG. 7 is a block diagram illustrating an example terminal, according to an implementation.
  • FIG. 8 is a block diagram illustrating an example network device, according to an implementation.
  • FIG. 9 is a schematic diagram illustrating an example structure of a terminal described in the present disclosure, according to an implementation.
  • FIG. 10 is a schematic diagram illustrating an example structure of an access point described in the present disclosure, according to an implementation.
  • EHT Extreme High Throughput
  • PHY physical
  • MAC medial access control
  • the goal is to increase peak throughput and improve efficiency, and to support high throughput and low latency applications such as video-over- WLAN, gaming, augmented reality (AR) and virtual reality (VR).
  • multi-band aggregation can be used to improve the data transmission throughput in a wireless communication system.
  • multiple frequency resource units in different bands e.g., 2.4 GHz, 5 GHz, and 6 GHz
  • the STA/AP can transmit data packets on different bands simultaneously.
  • different data packets can be transmitted on different bands by the same STA/AP simultaneously to increase the data throughput.
  • different versions of the same data packet can be transmitted on different bands by the same STA/AP simultaneously to improving reliability.
  • the power level of the received signal from multiple STAs at the AP receiver can be controlled by controlling the transmission power used by the STAs for transmitting on an uplink (UL) band.
  • the multi-band operation presents a challenge for the UL power control.
  • the AP can send a triggering frame to the STA to instruct the STA to transmit a data packet on the UL.
  • the UL and downlink (DL) are transmitted on the same frequency band.
  • the STA can thus determine the UL path loss based on measurement on the triggering frame on the DL because the UL and DL are on the same frequency band, and perform UL power control according to the path loss.
  • the AP can provide power control information in a DL triggering frame to the STA.
  • the power control information can include a first indication indicating a DL transmit power level on the first frequency band, a second indication indicating a first UL target power level on the first frequency band, and a third indication indicating a second UL target power level on the second frequency band.
  • the STA can determine the UL transmit power levels on the first and the second frequency bands based on these indications.
  • the STA can transmit data on the first and second frequency bands using the respective transmit power level.
  • FIGS. 1-11 and associated descriptions provide additional details of these implementations.
  • FIG. 1 illustrates an example communication system 100 that performs a power control operation in a multi-band system, according to an implementation.
  • the example communication system 100 includes a STA 102 that is communicably coupled to an AP 104.
  • the STA 102 and AP 104 can communicate with each other on multiple carriers on the same or different frequency bands.
  • the STA 102 can transmit to the AP 104 simultaneously on carriers in bands 122 and 124.
  • the STA 102 can receive from the AP 104 simultaneously on carriers in bands 122 and 124, as well.
  • the example communication system 100 further includes STA 106 that can transmit and receive from the AP on carriers in bands 126 and 128. While two frequency bands are illustrated in FIG.
  • more than two frequency bands can be used for simultaneous transmission between an AP and a STA.
  • reference to communications on bands should be understood to be on carriers within the noted frequency bands.
  • the AP 104 can communicate with additional STAs.
  • the STA 102 and STA 106 can transmit directly to each other.
  • the AP 104 can be part of a network 110.
  • the network 110 can include additional APs and other network devices.
  • the network 110 can be an IEEE 802.11 wireless local area network (WLAN). Additionally or alternatively, the network 110 can include other wireless networks, a wireline network, or a combination thereof. Examples of other wireless networks can include Global System for Mobile communication (GSM), General Packet Radio Service (GPRS), Enhanced Data rates for GSM Evolution (EDGE), Interim Standard 95 (IS- 95), Code Division Multiple Access (CDMA)2000, Evolution-Data Optimized (EVDO), Universal Mobile Telecommunications System (UMTS), Long Term Evolution (LTE), LTE- Advanced (LTE- A), 5G, IEEE 802.16 WiMAX, or any combinations thereof.
  • Examples of a wireline network can include local area network (LAN), cable, optical networks, or any combinations thereof.
  • the AP 104 can also be referred to as a base station.
  • a base station can control all or at least some radio-related functions in a fixed part of the system.
  • the base station may provide for a radio interface within its coverage area or a cell for a mobile device to communicate.
  • the STA may include, without limitation, any of the following: computing device, mobile device, mobile electronic device, user device, mobile station, subscriber station, portable electronic device, mobile communications device, wireless modem, wireless terminal, or other electronic device.
  • Examples of a mobile device may include a cellular phone, personal data assistant (PDA), smart phone, laptop, tablet, personal computer (PC), pager, portable computer, portable gaming device, wearable electronic device, health/medical/fitness device, camera, or other mobile communications devices having components for communicating voice or data via a wireless communication network.
  • PDA personal data assistant
  • PC personal computer
  • FIG. 1 While elements of FIG. 1 are shown as including various component parts, portions, or modules that implement the various features and functionality, these elements may instead include a number of sub-modules, third-party services, components, libraries, and such, as appropriate. Furthermore, the features and functionality of various components can be combined into fewer components as appropriate.
  • FIG. 2 illustrates example multi-band communication scenarios, according to various implementations.
  • the AP 104 transmits data simultaneously on two frequency bands (Band 1 and Band 2) to the STA 102, while the STA 102 transmits data simultaneously on the same two frequency bands to the AP 104.
  • the AP 104 transmits data on one frequency band (Bandl) to the STA 102, while the STA 102 transmits data simultaneously on the two frequency bands (Bandl and Band2) to the AP 104.
  • the AP 104 transmits data simultaneously on two frequency bands (Bandl and Band2) to the STA 102, while the STA 102 transmits data on one of those two frequency bands (Bandl) to the AP 104.
  • the AP 104 transmits data on one frequency band (Bandl) to the STA 102, while the STA 102 transmits data on a different frequency band (Band2) the AP 104.
  • the AP 104 can transmit a triggering frame to indicate the number and the identity of UL bands for the STA 102 to transmit on.
  • the triggering frame can be transmitted on one DL band, to instruct the STA 102 to transmit data on a different UL band.
  • the example multi-band communication scenarios illustrated in FIG. 2 include two frequency bands, more than two frequency bands can be used for simultaneous transmission in the multi-band operation.
  • FIG. 3 is a schematic diagram 300 illustrating an example power control operation for multi-band transmissions, according to an implementation.
  • the operation can be implemented by communication devices, e.g., the AP 104 and the STA 102, illustrated in FIG. 1. However, it will be understood that the operation may be performed, for example, by any suitable system, environment, software, and hardware, or a combination of systems, environments, software, and hardware, as appropriate. In some implementations, various steps of the operation can be run in parallel, in combination, in loops, or in any order.
  • the AP 104 determines resource allocation for one or more STAs.
  • frequency resources in two different frequency bands, Bandl and Band2 are allocated to the STA 102.
  • the AP 104 further determines target UL receive power levels for these two UL bands, UL Target RSSI Bandl and UL_Target_RSSI_Band2.
  • UL Target RSSI Bandl and UL_Target_RSSI_Band2 can be determined based on the bandwidth of the uplink resources allocated for the uplink transmission on the respective band, the modulation and coding scheme (MCS) configured for the uplink transmission on the respective band, and the noise and interference level measured at the AP 104 on the respective band.
  • MCS modulation and coding scheme
  • the AP 104 transmits a DL frame to the STA 102 on one frequency band, Bandl.
  • the DL frame can be referred to as a triggering frame.
  • the DL frame includes UL scheduling information for the STA 102 to transmit on two bands, Bandl and Band2 simultaneously.
  • the UL scheduling information can indicate the UL frequency resources in these two bands.
  • the DL frame further includes a first indication indicating a transmit power level that the AP 104 uses to transmit the DL frame on Bandl, denoted as PDL TX.
  • PDL TX can be set in the form of nominal transmit power of the DL frame, or transmit power of the DL frame normalized to a bandwidth (e.g., in a 20 MHz bandwidth).
  • the DL frame also includes a second indication indicating a first target power level on Bandl, denoted as UL Target RSSI Bandl, and athird indication indicating a second target power level on the second frequency band, denoted as UL_Target_RSSI_Band2.
  • RSSI refers to Received Signal Strength Indicator.
  • the DL frame can also include a fourth indication indicating a path loss difference between a first path loss over Bandl and a second path loss over Band2, denoted as PLDiff
  • the AP 104 can determine the UL path loss between the STA 102 and the AP 104 over Bandl, denoted as PLBandl based on the STA l02’s previous UL transmission over Bandl.
  • the AP 104 can determine the UL path loss between the STA 102 and the AP 104 over Band2, denoted as PLBand2 based on the STA l02’s previous UL transmission over Band2.
  • the AP 104 can calculate the path loss difference PLDiff using the following equation:
  • the STA 102 determines the transmit power levels on Bandl and Band2.
  • the STA 102 can measure the DL received power of the DL frame from the AP over Bandl, denoted as PDL RX Bandl.
  • the STA 102 can then calculate the path loss, denoted as PL Bandl STA, between the AP and the STA over Bandl based on the difference between the DL transmit power of the AP 104 and the DL received power by using the following equation:
  • the STA 102 can determine the path loss between the AP 104 and the STA 102 over Band2, denoted as PL_Band2_STA, according to the path loss over Bandl (PL Bandl STA), and the path loss difference between Bandl and Band2 (PLDiff) by using the following equation:
  • the STA 102 can further determine the UL transmit power levels on Bandl and Band2, denoted as PUL TX Bandl and PUL_TX_Band2, respectively, according to the path losses and the target UL receive power of Bandl and Band2 using the following equations:
  • PUL TX B and2 UL_Target_RSSI_Band2 + PL_Band2_STA
  • the STA 102 transmits data simultaneously on Bandl and Band2 using the frequency resources indicated in the DL frame.
  • the STA 102 transmits on Bandl at the transmit power level PUL TX Bandl, and transmits on Band2 at the transmit power level PUL_TX_Band2.
  • the UL transmissions on Bandl and Band2 start in the short interframe space (SIFS) after the end of the received DL frame
  • the UL transmit power can be limited by the STA l02’s maximum transmit power, denoted as PUL TX Max.
  • PUL TX Max the maximum transmit power
  • the STA 102 can determine adjusted UL transmit power levels for Bandl and Band2, denoted as PUL TX Bandl Real and PUL_TX_Band2_Real, respectively.
  • the STA 102 can transmit on Bandl and Band2 using the adjusted UL transmit power levels for Bandl and Band2.
  • the STA 102 in response to determining that the sum of PUL TX Bandl and PUL_TX_Band2 exceeds PUL TX Max, the STA 102 can prioritize the transmission on Bandl, and allocate the leftover power, if any, to the transmission on Band2. Accordingly, the STA 102 can determine PUL TX Bandl Real and PUL_TX_Band2_Real using the following equations:
  • min( ) is a minimum function which returns the minimum value of the input elements
  • lin( ) is a function which convert the input elements in log domain to linear domain, e.g., lin( ) can convert power values in unit of millidecibels (dBm) to values in unit of milliwatt (mW).
  • the STA 102 can prioritize the transmission on Band2, and allocate the leftover power, if any, to the transmission on Bandl. Accordingly, the STA 102 can determine PUL TX Bandl Real and PUL_TX_Band2_Real using the following equations:
  • PUL_TX_Band2_Real min (PUL_TX_Band2, PUL TX Max), and
  • lin(PUL_TX_Band 1 Real ) lin(PUL TX Max) - lin(PUL_TX_Band2_Real) [00056]
  • the STA 102 in response to determining that the sum of PUL TX Bandl and PUL_TX_Band2 exceeds PUL TX Max, the STA 102 can determine PUL TX Bandl Real and PUL_TX_Band2_Real by scaling down PUL TX Bandl and PUL_TX_Band2 proportionally based on the following equations:
  • the particular approach that the STA 102 take when the power is limited can be determined based on standard specification, a configuration stored at the STA 102, or an indication included in the DL frame.
  • the power control operation illustrated in FIG. 3 includes two frequency bands, this approach can be applied to simultaneous transmission over more than two frequency bands.
  • the triggering frame transmitted on Bandl can instruct the STA 102 to transmit over three or more UL bands.
  • the triggering frame can further include target UL receive power levels of each of these UL bands, and path loss differences between Bandl and each of the UL bands other than Bandl.
  • the AP 104 instead of including the path loss difference explicitly in the triggering frame as shown in FIG. 3, the AP 104 can implicitly indicate the path loss difference by incorporating this metric in the indications of the target UL receive power levels. This approach can reduce the overhead by reducing the amount of information that is transmitted in the DL frame.
  • FIG. 4 is a schematic diagram 400 illustrating such an example power control operation for multi-band transmissions, according to an implementation.
  • the operation can be implemented by communication devices, e.g., the AP 104 and the STA 102 illustrated in FIG. 1. However, it will be understood that the operation may be performed, for example, by any suitable system, environment, software, and hardware, or a combination of systems, environments, software, and hardware, as appropriate. In some implementations, various steps of the operation can be run in parallel, in combination, in loops, or in any order.
  • the AP 104 determines resource allocation for one or more STAs.
  • frequency resources in two different frequency bands are allocated to the STA 102.
  • the AP 104 further determines target UL receive power levels for these two UL bands, UL Target RSSI Bandl and UL_Target_RSSI_Band2.
  • the AP 104 transmits a DL frame to the STA 102 on Bandl.
  • the DL frame can be referred to as a triggering frame. Similarl to FIG. 3, the DL frame includes UL scheduling information for the STA 102 to transmit on two bands, Bandl and Band2 simultaneously.
  • the DL frame includes a first indication indicating a transmit power level that the AP 104 uses to transmit the DL frame on Bandl, denoted as PDL TX.
  • the DL frame also includes a second indication indicating a first target power level on Bandl, denoted as UL Target RSSI Bandl.
  • the DL frame also includes a third indication indicating a second target power level on the second frequency band.
  • the second target power level in this example does not represent the actual second target power level (UL_Target_RSSI_Band2) as in FIG. 3. Instead, the second target power level represents a virtual second target power level, denoted as UL_Virtual_Target_RSSI_Band2.
  • the virtual target UL receive power on Band2 is a combination of the actual target UL receive power on Band2 (UL_Target_RSSI_Band2) and the difference of the path loss between the AP 104 and the STA 102 over Bandl and Band2 (PLDiff) discussed previously.
  • the AP 104 can determine UL_Virtual_Target_RSSI_Band2 using the following equation:
  • the STA 102 determines the transmit power levels on Bandl and Band2. Similarl to FIG. 3, the STA 102 can measure PDL RX Bandl, and calculate PL Bandl STA. The STA 102 can further determine PUL TX Bandl according to PL Bandl STA and UL Target RSSI Bandl using the following equation:
  • the STA 102 can also determine PUL_TX_Band2 according to
  • PUL TX B and2 UL_Virtual_Target_RSSI_Band2 + PL Bandl STA.
  • the STA 102 uses virtual UL receive target power on Band2 and the path loss on Bandl to determine PUL_TX_Band2.
  • the STA 102 transmits data simultaneously on Bandl and Band2 based on PUL TX Bandl and PUL_TX_Band2.
  • the STA 102 can transmit at the transmit power level PUL TX Bandl and PUL_TX_Band2 if the sum of these levels does not exceed the maximum transmit power of the STA 102.
  • the STA 102 can adjust the transmit power by prioritizing the transmission on one of the frequency bands, or scaling transmit power proportionally.
  • FIG. 5 is a flow diagram illustrating an example method 500 for power control in a multi-band operation, according to an implementation.
  • the method 500 can be implemented by an electronic device, e.g., the STA 102 illustrated in FIG. 1. However, it will be understood that the method 500 may be performed, for example, by any suitable system, environment, software, and hardware, or a combination of systems, environments, software, and hardware, as appropriate. In some implementations, various steps of the method 500 can be run in parallel, in combination, in loops, or in any order.
  • a station receives a wireless communication signal on a first frequency band.
  • the wireless communication signal includes a frame.
  • the frame includes resource allocation information for a data transmission on the first frequency band and a second frequency band.
  • the frame further includes a first indication indicating a first transmit power level of the signal on the first frequency band, a second indication indicating a first target power level on the first frequency band, and a third indication indicating a second target power level on the second frequency band.
  • the station determines a second transmit power level and a third transmit power level based on the first target power level, the second target power level, and the first transmit power level.
  • the station transmits data using a first outgoing signal on the first frequency band based on the second transmit power level, and a second outgoing signal on the second frequency band based on the third transmit power level.
  • FIG. 6 is a schematic diagram 600 illustrating an example triggering frame, according to an implementation.
  • the frame includes a MAC header 610 and a body 620.
  • the MAC header 610 includes a frame control field 612, a duration field 614, a Receiver Address field 616, and a Transmitter Address field 618.
  • the MAC header 610 can include more or fewer fields as illustrated.
  • the body 620 can include a field 622 that carries the UL scheduling information, a field 624 that carries the first indication indicating a first transmit power level of a DL signal on the first frequency band, a field 626 that carries a second indication indicating a first target power level on the first frequency band, and a field 628 that carries a third indication indicating a second target power level on the second frequency band.
  • the body 620 can also include a field 630 that carries a fourth indication indicating a path loss difference between a first path loss over the first frequency band and a second path loss over the second frequency band. In some cases, some of these indications can be carried in the same field.
  • the MAC header 610 can also include more or fewer fields as illustrated.
  • FIG. 7 is a block diagram illustrating an example terminal 700, according to an implementation.
  • the illustrated terminal 700 can be used to implement the STA 102 discussed previously.
  • the terminal 700 includes an input/output (I/O) interface 701.
  • the I/O interface 701 can include, for example, one or more of a screen or touch screen (for example, a liquid crystal display (LCD), a light emitting display (LED), an organic light emitting display (OLED), a micro-electromechanical system (MEMS) display), a keyboard or keypad, a trackball, a speaker, and a microphone.
  • the I/O interface 701 can include, for example, a universal serial bus (USB) interface.
  • USB universal serial bus
  • the terminal 700 includes a transmitter 702.
  • the transmitter 702 can include components such as digital-to-analog (D/A), automatic gain control circuitry (AGC), and other radio frequency (RF) components that convert baseband signals to RF signals for transmission.
  • the transmitter 702 is coupled with one or more antennas 708 that transmit the RF signals.
  • Each of the one or more antennas 708 can be configured to transmit over the same or different frequency bands.
  • the transmitter 702 can include more than one transmitter branch. Each of the branches can supply RF signal for a different antenna, for transmitting on a different frequency band, or any combinations thereof.
  • the terminal 700 includes a receiver 706.
  • the receiver 706 can include components such as analog-to-digital (A/D), automatic gain control circuitry (AGC), and other radio frequency (RF) components that convert received RF signals to baseband signal.
  • the receiver 706 is coupled with one or more antennas 708 that receive the RF signals. Each of the one or more antennas 708 can be configured to receive over the same or different frequency bands. In some cases, the receiver 706 can include more than one receiver branch. Each of the branches can process RF signal for a different antenna, received on a different frequency band, or any combinations thereof.
  • the transmitter 702 and the receiver 706 may share antennas 708 or may be coupled to separate antennas or sets of antennas 708. The transmitter 702 and the receiver 706 may share circuitry or may be combined into a transceiver.
  • the terminal 700 includes a memory 704.
  • the memory 704 can include computer-readable storage medium that can store an operating system (OS) of the terminal 700 and various other computer-executable instructions, logic, or software programs for performing one or more of the processes, steps, or actions described above.
  • OS operating system
  • Memory 704 may also store information and may be coupled to processor 705.
  • Memory 704 may be consolidated in a single device or may include multiple memories/devices.
  • the terminal 700 includes a processor 705.
  • the processor 705 can include one or more processing components (alternatively referred to as "processors”) that can execute instructions related to one or more of the processes, steps, or actions described in connection with one or more of the implementations disclosed in the present disclosure.
  • the processor 705 can include microprocessors, central processing units (CPUs), graphics processing units, processing cores, digital signal processors, or other types of computing devices.
  • the processor 705 can also include other auxiliary components, such as random access memory (RAM) and read-only memory (ROM).
  • RAM random access memory
  • ROM read-only memory
  • Processor 705 may be coupled to one or more of the I/O interface 701, transmitter 702, receiver 706, and may provide control signals to such components, receive signals (e.g., parameters, settings, measurements, etc.) from such components, or both.
  • Processor 705 may also be configured to perform various transmit processing functions, receive processing functions, or both, which may be implemented in executable code stored in memory 704.
  • the above-discussed techniques may also be implemented by means of executable code stored in memory 704, which may be executed on processor 705.
  • Various other components can also be included in the terminal 700.
  • FIG. 8 is a block diagram illustrating an example network device 800, according to an implementation.
  • the illustrated network device 800 can be used to implement the AP 104 discussed previously.
  • the device 800 includes an input/output (I/O) interface 801.
  • the I/O interface 801 can include, for example, one or more of a screen or touch screen (for example, a liquid crystal display (LCD), a light emitting display (LED), an organic light emitting display (OLED), a micro-electromechanical system (MEMS) display), a keyboard or keypad, a trackball, a speaker, and a microphone.
  • the I/O interface 801 can include, for example, a universal serial bus (USB) interface.
  • the device 800 includes a transmiter 802.
  • the transmiter 802 can include components such as digital-to-analog (D/A), automatic gain control circuitry (AGC), and other radio frequency (RF) components that convert baseband signals to RF signals for transmission.
  • the transmiter 802 is coupled with one or more antennas 808 that transmit the RF signals.
  • Each of the one or more antennas 808 can be configured to transmit over the same or different frequency bands.
  • the transmiter 802 can include more than one transmiter branch. Each of the branches can supply RF signal for a different antenna, for transmiting on a different frequency band, or any combinations thereof.
  • the device 800 includes a receiver 806.
  • the receiver 806 can include components such as analog-to-digital (A/D), automatic gain control circuitry (AGC), and other radio frequency (RF) components that convert received RF signals to baseband signal.
  • the receiver 806 is coupled with one or more antennas 808 that receive the RF signals. Each of the one or more antennas 808 can be configured to receive over the same or different frequency bands. In some cases, the receiver 806 can include more than one receiver branch. Each of the branches can process RF signal for a different antenna, received on a different frequency band, or any combinations thereof.
  • the transmiter 802 and the receiver 806 may share antennas 808 or may be coupled to separate antennas or sets of antennas 808. The transmiter 802 and the receiver 806 may share circuitry or may be combined into a transceiver.
  • the device 800 includes a memory 804.
  • the memory 804 can include computer-readable storage medium that can store an operating system (OS) of the device 800 and various other computer-executable instructions, logic, or software programs for performing one or more of the processes, steps, or actions described above.
  • OS operating system
  • Memory 804 may also store information and may be coupled to processor 805.
  • Memory 804 may be consolidated in a single device or may include multiple memories/devices.
  • the device 800 includes a processor 805.
  • the processor 805 can include one or more processing components (alternatively referred to as "processors”) that can execute instructions related to one or more of the processes, steps, or actions described herein in connection with one or more of the implementations disclosed in the present disclosure.
  • the processor 805 can include microprocessors, central processing units (CPUs), graphics processing units, processing cores, digital signal processors, or other types of computing devices.
  • the processor 805 can also include other auxiliary components, such as random access memory (RAM) and read-only memory (ROM).
  • RAM random access memory
  • ROM read-only memory
  • Processor 805 may be coupled to one or more of the I/O interface 801, transmitter 802, receiver 806, and may provide control signals to such components, receive signals (e.g., parameters, settings, measurements, etc.) from such components, or both.
  • Processor 805 may also be configured to perform various transmit processing functions, receive processing functions, or both, which may be implemented in executable code stored in memory 804.
  • the above-discussed techniques may also be implemented by means of executable code stored in memory 804, which may be executed on processor 805.
  • Various other components can also be included in the device 800. A number of embodiments of the invention have been described.
  • FIGS. 7 and 8 show the use of processors and memories
  • various other implementations of various functionalities performed by these components may, alternatively or additionally, be implemented in other ways, e.g., but not limited to, field-programmable gate arrays (FPGAs), look-up tables (LUTs), and state machines.
  • FPGAs field-programmable gate arrays
  • LUTs look-up tables
  • state machines e.g., but not limited to, field-programmable gate arrays (FPGAs), look-up tables (LUTs), and state machines.
  • the antennas 708 and 808 shown in FIGS. 7 and 8 may be used to implement various types of signal transmission schemes, which may include, but are not limited to multi- input/multi-output (MIMO), single-input/single-output (SISO), and multiple-input/single- output (MISO). Encoding and decoding may be implemented to accommodate precoding for such transmission schemes.
  • MIMO multi- input/multi-output
  • SISO single-input/single-output
  • MISO multiple-input/single- output
  • Encoding and decoding may be implemented to accommodate precoding for such transmission schemes.
  • FIG. 9 is a schematic diagram illustrating an example structure of a terminal 900 described in the present disclosure, according to an implementation.
  • the terminal 900 includes a receiving circuit 902, a power level determination circuit 904, and a transmitting circuit 906.
  • terminal 900 can further include one or more circuits for performing any one or a combination of steps described in the present disclosure.
  • the receiving circuit 902 is configured to receive on a first frequency band, a wireless communication signal.
  • the wireless communication signal includes a frame.
  • the frame includes resource allocation information for a data transmission on the first frequency band and a second frequency band.
  • the frame further includes a first indication indicating a first transmit power level of the signal on the first frequency band, a second indication indicating a first target power level on the first frequency band, and a third indication indicating a second target power level on the second frequency band.
  • the power level determination circuit 904 is configured to determine a second transmit power level and a third transmit power level based on the first target power level, the second target power level, and the first transmit power level.
  • the transmitting circuit 906 is configured to transmit data using a first outgoing signal on the first frequency band based on the second transmit power level, and a second outgoing signal on the second frequency band based on the third transmit power level.
  • FIG. 10 is a schematic diagram illustrating an example structure of an AP 1000 described in the present disclosure, according to an implementation.
  • the AP 1000 includes a receiving circuit 1002, a power level determination circuit 1004, and a transmitting circuit 1006.
  • the AP 1000 can further include one or more circuits for performing any one or a combination of steps described in the present disclosure.
  • the receiving circuit 1002 is configured to receive UL transmission from an STA on one or more frequency bands.
  • the power level determination circuit 1004 is configured to determine a second indication indicating a first target power level on the first frequency band, and a third indication indicating a second target power level on the second frequency band. In some cases, the power level determination circuit 1004 can determine one or more path loss differences.
  • the transmitting circuit 1006 is configured to transmit a wireless communication signal.
  • the wireless communication signal includes a frame.
  • the frame includes resource allocation information for a data transmission on the first frequency band and a second frequency band.
  • the frame further includes a first indication indicating a first transmit power level of the signal on the first frequency band, a second indication indicating a first target power level on the first frequency band, and a third indication indicating a second target power level on the second frequency band.
  • Described implementations of the subject matter can include one or more features, alone or in combination.
  • a method for communicating in a wireless system includes: receiving, by a station, on a first frequency band, a wireless communication signal, where the wireless communication signal includes a frame, the frame includes resource allocation information for a data transmission on the first frequency band and a second frequency band, the frame further includes a first indication indicating a first transmit power level of the wireless communication signal on the first frequency band, a second indication indicating a first target power level on the first frequency band, and a third indication indicating a second target power level on the second frequency band; determining, by the station, a second transmit power level and a third transmit power level based on the first target power level, the second target power level, and the first transmit power level; and transmitting, by the station, data using a first outgoing signal on the first frequency band based on the second transmit power level, and a second outgoing signal on the second frequency band based on the third transmit power level.
  • a first feature combinable with any of the following features, where the frame further includes a fourth indication indicating a path loss difference between a first path loss over the first frequency band and a second path loss over the second frequency band.
  • a fourth feature combinable with any of the previous or following features, where the second target power level includes a sum of a receive target power level on the second frequency band and a path loss difference between a first path loss over the first frequency band and a second path loss over the second frequency band.
  • a fifth feature, combinable with any of the previous or following features, where the transmitting, by the station, data on the first frequency band and the second frequency band based on the second transmit power level and the third transmit power level includes: determining that a sum of the second transmit power level and the third transmit power level exceeds a transmit power threshold; and in response to determining that the sum of the second transmit power level and the third transmit power level exceeds the transmit power threshold: using a minimum of the second transmit power level and the transmit power threshold to transmit on the first frequency band; and using a remaining power level to transmit on the second frequency band.
  • a sixth feature, combinable with any of the previous or following features, where the transmitting, by the station, data on the first frequency band and the second frequency band based on the second transmit power level and the third transmit power level includes: determining that a sum of the second transmit power level and the third transmit power level exceeds a transmit power threshold; in response to determining that the sum of the second transmit power level and the third transmit power level exceeds the transmit power threshold: determining a scaling factor based on a ratio between the transmit power threshold and the sum of the second transmit power level and the third transmit power level; determining a scaled second transmit power level based on the scaling factor and the second transmit power level; determining a scaled third transmit power level based on the scaling factor and the third transmit power level; using the scaled second transmit power level to transmit on the first frequency band; and using the scaled third transmit power level to transmit on the second frequency band.
  • a seventh feature combinable with any of the previous features, where the transmitting, by the station, data on the first frequency band and the second frequency band based on the second transmit power level and the third transmit power level includes determining that a sum of the second transmit power level and the third transmit power level does not exceed a transmit power threshold; and in response to determining that the sum of the second transmit power level and the third transmit power level does not exceed the transmit power threshold: using the second transmit power level to transmit on the first frequency band; and using the third transmit power level to transmit on the second frequency band.
  • a station in a second implementation, includes a non-transitory memory storage including instructions and one or more hardware processors in communication with the memory storage, where the one or more hardware processors execute the instructions to: receive on a first frequency band, a wireless communication signal, where the wireless communication signal includes a frame, the frame includes resource allocation information for a data transmission on the first frequency band and a second frequency band, the frame further includes a first indication indicating a first transmit power level of the wireless communication signal on the first frequency band, a second indication indicating a first target power level on the first frequency band, and a third indication indicating a second target power level on the second frequency band; determine a second transmit power level and a third transmit power level based on the first target power level, the second target power level, and the first transmit power level; and transmit data using a first outgoing signal on the first frequency band based on the second transmit power level, and a second outgoing signal on the second frequency band based on the third transmit power level.
  • a first feature combinable with any of the following features, where the frame further includes a fourth indication indicating a path loss difference between a first path loss over the first frequency band and a second path loss over the second frequency band.
  • a third feature combinable with any of the previous or following features, where the one or more hardware processors execute the instructions to: determine a received power level of the wireless communication signal; determine a first path loss based on the received power level and the first transmit power level; determine the second transmit power level based on the first path loss and the first target power level; and determine the third transmit power level based on the first path loss and the second target power level.
  • a fourth feature combinable with any of the previous or following features, where the second target power level includes a sum of a receive target power level on the second frequency band and a path loss difference between a first path loss over the first frequency band and a second path loss over the second frequency band.
  • a fifth feature combinable with any of the previous or following features, where the one or more hardware processors execute the instructions to: determine that a sum of the second transmit power level and the third transmit power level exceeds a transmit power threshold; and in response to determining that the sum of the second transmit power level and the third transmit power level exceeds the transmit power threshold: use a minimum of the second transmit power level and the transmit power threshold to transmit on the first frequency band; use a remaining power level to transmit on the second frequency band.
  • a sixth feature combinable with any of the previous or following features, where the one or more hardware processors execute the instructions to: determine that a sum of the second transmit power level and the third transmit power level exceeds a transmit power threshold; in response to determining that the sum of the second transmit power level and the third transmit power level exceeds the transmit power threshold: determine a scaling factor based on a ratio between the transmit power threshold and the sum of the second transmit power level and the third transmit power level; determine a scaled second transmit power level based on the scaling factor and the second transmit power level; determine a scaled third transmit power level based on the scaling factor and the third transmit power level; use the scaled second transmit power level to transmit on the first frequency band; and use the scaled third transmit power level to transmit on the second frequency band.
  • a seventh feature combinable with any of the previous features, where the one or more hardware processors execute the instructions to: determine that a sum of the second transmit power level and the third transmit power level does not exceed a transmit power threshold; and in response to determining that the sum of the second transmit power level and the third transmit power level does not exceed the transmit power threshold: use the second transmit power level to transmit on the first frequency band; and use the third transmit power level to transmit on the second frequency band.
  • a non-transitory computer-readable medium storing computer instructions, that when executed by one or more hardware processors, cause the one or more hardware processors to perform operations including receiving, by a station, on a first frequency band, a wireless communication signal, where the wireless communication signal includes a frame, the frame includes resource allocation information for a data transmission on the first frequency band and a second frequency band, the frame further includes a first indication indicating a first transmit power level of the wireless communication signal on the first frequency band, a second indication indicating a first target power level on the first frequency band, and a third indication indicating a second target power level on the second frequency band; determining, by the station, a second transmit power level and a third transmit power level based on the first target power level, the second target power level, and the first transmit power level; and transmitting, by the station, data using a first outgoing signal on the first frequency band based on the second transmit power level, and a second outgoing signal on the second frequency band based on the third
  • a first feature combinable with any of the following features, where the frame further includes a fourth indication indicating a path loss difference between a first path loss over the first frequency band and a second path loss over the second frequency band.
  • a fourth feature combinable with any of the previous or following features, where the second target power level includes a sum of a receive target power level on the second frequency band and a path loss difference between a first path loss over the first frequency band and a second path loss over the second frequency band.
  • a fifth feature, combinable with any of the previous or following features, where the transmitting, by the station, data on the first frequency band and the second frequency band based on the second transmit power level and the third transmit power level includes: determining that a sum of the second transmit power level and the third transmit power level exceeds a transmit power threshold; and in response to determining that the sum of the second transmit power level and the third transmit power level exceeds the transmit power threshold: using a minimum of the second transmit power level and the transmit power threshold to transmit on the first frequency band; and using a remaining power level to transmit on the second frequency band.
  • a sixth feature, combinable with any of the previous or following features, where the transmitting, by the station, data on the first frequency band and the second frequency band based on the second transmit power level and the third transmit power level includes: determining that a sum of the second transmit power level and the third transmit power level exceeds a transmit power threshold; in response to determining that the sum of the second transmit power level and the third transmit power level exceeds the transmit power threshold: determining a scaling factor based on a ratio between the transmit power threshold and the sum of the second transmit power level and the third transmit power level; determining a scaled second transmit power level based on the scaling factor and the second transmit power level; determining a scaled third transmit power level based on the scaling factor and the third transmit power level; using the scaled second transmit power level to transmit on the first frequency band; and using the scaled third transmit power level to transmit on the second frequency band.
  • a seventh feature combinable with any of the previous features, where the transmitting, by the station, data on the first frequency band and the second frequency band based on the second transmit power level and the third transmit power level includes determining that a sum of the second transmit power level and the third transmit power level does not exceed a transmit power threshold; and in response to determining that the sum of the second transmit power level and the third transmit power level does not exceed the transmit power threshold: using the second transmit power level to transmit on the first frequency band; and using the third transmit power level to transmit on the second frequency band.
  • Implementations of the subject matter and the functional operations described in this specification can be implemented in digital electronic circuitry, in tangibly embodied computer software or firmware, in computer hardware, including the structures disclosed in this specification and their structural equivalents, or in combinations of one or more of them. Implementations of the subject matter described in this specification can be implemented as one or more computer programs, that is, one or more modules of computer program instructions encoded on a tangible, non-transitory, computer-readable computer-storage medium for execution by, or to control the operation of, data processing apparatus.
  • the program instructions can be encoded in/on an artificially generated propagated signal, for example, a machine-generated electrical, optical, or electromagnetic signal that is generated to encode information for transmission to suitable receiver apparatus for execution by a data processing apparatus.
  • the computer-storage medium can be a machine-readable storage device, a machine-readable storage substrate, a random or serial access memory device, or a combination of computer-storage mediums.
  • the term“real-time,”“real time,”“realtime,”“real (fast) time (RFT),”“near(ly) real-time (NRT),”“quasi real-time,” or similar terms means that an action and a response are temporally proximate such that an individual perceives the action and the response occurring substantially simultaneously.
  • the time difference for a response to display (or for an initiation of a display) of data following the individual’s action to access the data may be less than 1 ms, less than 1 sec., or less than 5 secs.
  • the terms“data processing apparatus,”“computer,” or“electronic computer device” refer to data processing hardware and encompass all kinds of apparatus, devices, and machines for processing data, including by way of example, a programmable processor, a computer, or multiple processors or computers.
  • the apparatus can also be or further include special purpose logic circuitry, for example, a Central Processing Unit (CPU), a Field Programmable Gate Array (FPGA), or an Application-specific Integrated Circuit (ASIC).
  • the data processing apparatus or special purpose logic circuitry (or a combination of the data processing apparatus or special purpose logic circuitry) may be hardware- or software-based (or a combination of both hardware- and software-based).
  • the apparatus can optionally include code that creates an execution environment for computer programs, for example, code that constitutes processor firmware, a protocol stack, a database management system, an operating system, or a combination of execution environments.
  • code that constitutes processor firmware for example, code that constitutes processor firmware, a protocol stack, a database management system, an operating system, or a combination of execution environments.
  • the present disclosure contemplates the use of data processing apparatuses with or without conventional operating systems, for example LINUX, UNIX, WINDOWS, MAC OS, ANDROID, IOS, or any other suitable conventional operating system.
  • a computer program which may also be referred to or described as a program, software, a software application, a module, a software module, a script, or code can be written in any form of programming language, including compiled or interpreted languages, or declarative or procedural languages, and it can be deployed in any form, including as a stand-alone program or as a module, component, subroutine, or other unit suitable for use in a computing environment.
  • a computer program may, but need not, correspond to a file in a file system.
  • a program can be stored in a portion of a file that holds other programs or data, for example, one or more scripts stored in a markup language document, in a single file dedicated to the program in question, or in multiple coordinated files, for example, files that store one or more modules, sub-programs, or portions of code.
  • a computer program can be deployed to be executed on one computer or on multiple computers that are located at one site or distributed across multiple sites and interconnected by a communication network. While portions of the programs illustrated in the various figures are shown as individual modules that implement the various features and functionality through various objects, methods, or other processes, the programs may instead include a number of sub-modules, third-party services, components, libraries, and such, as appropriate. Conversely, the features and functionality of various components can be combined into single components, as appropriate. Thresholds used to make computational determinations can be statically, dynamically, or both statically and dynamically determined.
  • the methods, processes, or logic flows described in this specification can be performed by one or more programmable computers executing one or more computer programs to perform functions by operating on input data and generating output.
  • the methods, processes, or logic flows can also be performed by, and apparatus can also be implemented as, special purpose logic circuitry, for example, a CPU, an FPGA, or an ASIC.
  • Computers suitable for the execution of a computer program can be based on general or special purpose microprocessors, both, or any other kind of CPU.
  • a CPU will receive instructions and data from a ROM or a Random Access Memory (RAM), or both.
  • RAM Random Access Memory
  • the essential elements of a computer are a CPU, for performing or executing instructions, and one or more memory devices for storing instructions and data.
  • a computer will also include, or be operatively coupled to, receive data from or transfer data to, or both, one or more mass storage devices for storing data, for example, magnetic, magneto-optical disks, or optical disks.
  • mass storage devices for storing data, for example, magnetic, magneto-optical disks, or optical disks.
  • a computer need not have such devices.
  • a computer can be embedded in another device, for example, a mobile telephone, a Personal Digital Assistant (PDA), a mobile audio or video player, a game console, a Global Positioning System (GPS) receiver, or a portable storage device, for example, a Universal Serial Bus (USB) flash drive, to name just a few.
  • PDA Personal Digital Assistant
  • GPS Global Positioning System
  • USB Universal Serial Bus
  • Computer-readable media suitable for storing computer program instructions and data includes non-volatile memory, media and memory devices, including by way of example, semiconductor memory devices, for example, Erasable Programmable Read-Only Memory (EPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), and flash memory devices; magnetic disks, for example, internal hard disks or removable disks; magneto-optical disks; and CD-ROM, DVD+/-R, DVD-RAM, and DVD-ROM disks.
  • semiconductor memory devices for example, Erasable Programmable Read-Only Memory (EPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), and flash memory devices
  • EPROM Erasable Programmable Read-Only Memory
  • EEPROM Electrically Erasable Programmable Read-Only Memory
  • flash memory devices for example, internal hard disks or removable disks
  • magneto-optical disks for example, internal hard disks or removable disks
  • the memory may store various objects or data, including caches, classes, frameworks, applications, backup data, jobs, web pages, web page templates, database tables, repositories storing dynamic information, and any other appropriate information including any parameters, variables, algorithms, instructions, rules, constraints, or references thereto. Additionally, the memory may include any other appropriate data, such as logs, policies, security or access data, reporting files, as well as others.
  • the processor and the memory can be supplemented by, or incorporated in, special purpose logic circuitry.
  • implementations of the subject matter described in this specification can be implemented on a computer having a display device, for example, a Cathode Ray Tube (CRT), Liquid Crystal Display (LCD), Light Emitting Diode (LED), or plasma monitor, for displaying information to the user and a keyboard and a pointing device, for example, a mouse, trackball, or trackpad by which the user can provide input to the computer.
  • a display device for example, a Cathode Ray Tube (CRT), Liquid Crystal Display (LCD), Light Emitting Diode (LED), or plasma monitor
  • a keyboard and a pointing device for example, a mouse, trackball, or trackpad by which the user can provide input to the computer.
  • Input may also be provided to the computer using a touchscreen, such as a tablet computer surface with pressure sensitivity, a multi-touch screen using capacitive or electric sensing, or other type of touchscreen.
  • a computer can interact with a user by sending documents to and receiving documents from a device that is used by the user; for example, by sending web pages to a web browser on a user’s client device in response to requests received from the web browser.
  • GUI graphical user interface
  • a GUI may be used in the singular or the plural to describe one or more graphical user interfaces and each of the displays of a particular graphical user interface. Therefore, a GUI may represent any graphical user interface, including but not limited to, a web browser, a touch screen, or a Command Line Interface (CLI) that processes information and efficiently presents the information results to the user.
  • a GUI may include a plurality of User Interface (UI) elements, some or all associated with a web browser, such as interactive fields, pull-down lists, and butons. These and other UI elements may be related to or represent the functions of the web browser.
  • UI User Interface
  • Implementations of the subject mater described in this specification can be implemented in a computing system that includes a back-end component, for example, as a data server, or that includes a middleware component, for example, an application server, or that includes a front-end component, for example, a client computer having a graphical user interface or a Web browser through which a user can interact with an implementation of the subject matter described in this specification, or any combination of one or more such back-end, middleware, or front-end components.
  • the components of the system can be interconnected by any form or medium of wireline or wireless digital data communication (or a combination of data communication), for example, a communication network.
  • Examples of communication networks include a Local Area Network (LAN), a Radio Access Network (RAN), a Metropolitan Area Network (MAN), a Wide Area Network (WAN), Worldwide Interoperability for Microwave Access (WIMAX), a Wireless Local Area Network (WLAN) using, for example, 802.11 a/b/g/n or 802.20 (or a combination of 802.1 lx and 802.20 or other protocols consistent with this disclosure), all or a portion of the Internet, or any other communication system or systems at one or more locations (or a combination of communication networks).
  • the network may communicate with, for example, Internet Protocol (IP) packets, Frame Relay frames, Asynchronous Transfer Mode (ATM) cells, voice, video, data, or other suitable information (or a combination of communication types) between network addresses.
  • IP Internet Protocol
  • ATM Asynchronous Transfer Mode
  • the computing system can include clients and servers.
  • a client and server are generally remote from each other and typically interact through a communication network.
  • the relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other.
  • any claimed implementation is considered to be applicable to at least a computer-implemented method; a non-transitory, computer-readable medium storing computer-readable instructions to perform the computer-implemented method; and a computer system comprising a computer memory interoperably coupled with a hardware processor configured to perform the computer-implemented method or the instructions stored on the non- transitory, computer-readable medium.

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Abstract

Selon l'invention, un procédé implémenté par ordinateur pour une commande de puissance dans un système multibande consiste à recevoir, sur une première bande de fréquences, un signal de communication sans fil. Le signal de communication sans fil comprend une trame qui comprend des informations d'attribution de ressources pour une transmission de données sur la première bande de fréquences et une deuxième bande de fréquences, une première indication indiquant un premier niveau de puissance d'émission du signal sur la première bande de fréquence, une deuxième indication indiquant un premier niveau de puissance cible sur la première bande de fréquence, et une troisième indication indiquant un deuxième niveau de puissance cible sur la deuxième bande de fréquence. Puis, ledit procédé consiste à déterminer un deuxième niveau de puissance d'émission et un troisième niveau de puissance d'émission sur la base du premier niveau de puissance cible, du deuxième niveau de puissance cible et du premier niveau de puissance d'émission; et à transmettre des données à l'aide du deuxième niveau de puissance d'émission et du troisième niveau de puissance d'émission.
PCT/US2019/042907 2019-07-23 2019-07-23 Commande de puissance de liaison montante dans une transmission multi-bande WO2020096663A1 (fr)

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WO2022016527A1 (fr) * 2020-07-24 2022-01-27 北京小米移动软件有限公司 Procédé de communication et dispositif de communication fonctionnant sous plusieurs liaisons

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