WO2025119152A1 - 发射功率控制方法、装置及通信设备 - Google Patents
发射功率控制方法、装置及通信设备 Download PDFInfo
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- WO2025119152A1 WO2025119152A1 PCT/CN2024/136271 CN2024136271W WO2025119152A1 WO 2025119152 A1 WO2025119152 A1 WO 2025119152A1 CN 2024136271 W CN2024136271 W CN 2024136271W WO 2025119152 A1 WO2025119152 A1 WO 2025119152A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/22—Scatter propagation systems, e.g. ionospheric, tropospheric or meteor scatter
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/02—Power saving arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [TPC]
- H04W52/06—TPC algorithms
- H04W52/08—Closed loop power control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [TPC]
- H04W52/06—TPC algorithms
- H04W52/16—Deriving transmission power values from another channel
Definitions
- the present application belongs to the field of communication technology, and specifically relates to a transmission power control method, device and communication equipment.
- the power control method in the related art is designed based on the assumption of a topology structure in which a user equipment (UE) is directly connected to a base station or an integrated access and backhaul (IAB) node, based on multi-carrier signals such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform–Spread OFDM (DFT-S-OFDM).
- OFDM orthogonal frequency division multiplexing
- DFT-S-OFDM discrete Fourier transform–Spread OFDM
- BSC backscatter communication
- AIoT ambient Internet of Things
- OOK On-Off Keying
- ASK Amplitude Shift Keying
- FSK Frequency-Shift Keying
- the connection topology in BSC is not limited to a simple direct connection topology.
- some devices have both traditional main communication modules and AIoT-type extremely low power communication modules.
- the power control method in the related art cannot be applied to the power control of a communication device that has both a main communication module and an ultra-low power consumption communication module. At this time, the lack of power control of a communication device that has both a main communication module and an ultra-low power consumption communication module will limit the communication performance of the communication device.
- the embodiments of the present application provide a transmission power control method, device and communication equipment, which can perform power control on a first signal sent by a main communication module and a second signal sent by a low-power communication module in a communication equipment having both a main communication module and an ultra-low power communication module, thereby improving the communication performance of the communication equipment.
- a transmission power control method comprising:
- a first device acquires first information, the first device includes a first communication module and a second communication module, and the second communication module is an extremely low power consumption communication module;
- the first device determines a first target transmit power of the first communication module and a second target transmit power of the second communication module based on the first information; wherein the first target transmit power is used by the first communication module to send a first signal, and the second target transmit power is used by the second communication module to send a second signal.
- a transmission power control device which is applied to a first node, and the device includes:
- a first acquisition module used to acquire first information
- the first device includes a first communication module and a second communication module, and the second communication module is an extremely low power consumption communication module;
- a first determination module is used to determine a first target transmission power of the first communication module and a second target transmission power of the second communication module based on the first information; wherein the first target transmission power is used for the first communication module to send a first signal, and the second target transmission power is used for the second communication module to send a second signal.
- a transmission power control method comprising:
- the second device sends first information to the first device, the first device includes a first communication module and a second communication module, the second communication module is an extremely low power consumption communication module; the first information is used to determine the first target transmission power of the first communication module for the first signal and the second target transmission power of the second communication module for the second signal.
- a transmission power control device which is applied to a second node, and the device includes:
- a first sending module is used to send first information to a first device, wherein the first device includes a first communication module and a second communication module, and the second communication module is an extremely low power consumption communication module; the first information is used to determine a first target transmission power of the first communication module for a first signal and a second target transmission power of the second communication module for a second signal.
- a communication device which includes a processor and a memory, wherein the memory stores a program or instruction that can be executed on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect or the third aspect are implemented.
- a communication device including a processor and a communication interface
- the communication device when the communication device is a first device, the communication interface or the processor is used to obtain first information, the first device includes a first communication module and a second communication module, and the second communication module is an extremely low power consumption communication module; the processor is also used to determine a first target transmit power of the first communication module and a second target transmit power of the second communication module according to the first information; wherein the first target transmit power is used for the first communication module to send a first signal, and the second target transmit power is used for the second communication module to send a second signal;
- the communication interface is used to send first information to the first device, the first device includes a first communication module and a second communication module, the second communication module is an extremely low power consumption communication module; the first information is used to determine a first target transmission power of the first communication module for a first signal and a second target transmission power of the second communication module for a second signal.
- a wireless communication system comprising a first device and a second device, wherein the first device is used to execute the steps of the method described in the first aspect, and the second device is used to execute the steps of the method described in the third aspect.
- a readable storage medium on which a program or instruction is stored.
- the program or instruction is executed by a processor, the steps of the method described in the first aspect or the third aspect are implemented.
- a chip comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the method described in the first aspect or the third aspect.
- a computer program/program product is provided, wherein the computer program/program product is stored in a storage medium and is executed by at least one processor to implement the steps of the method described in the first aspect or the third aspect.
- a main communication module i.e., a first communication module
- an extremely low power consumption communication module i.e., a second communication module
- power control of the two communication modules on the first device can be performed based on the first information, so that the first target transmission power of the first signal sent by the main communication module on the first device and the second target transmission power of the second signal sent by the extremely low power consumption communication module on the first device are more flexible, thereby improving the communication performance of the first device.
- FIG1 is a schematic diagram of the structure of a wireless communication system to which an embodiment of the present application can be applied;
- FIG2 is a schematic diagram of a backscatter communication system
- FIG5 is a schematic diagram of an offset-quadrature phase shift keying (O-QPSK) transmission and expansion sequence
- FIG6 is a schematic diagram of a Differential Binary Phase Shift Keying (DBPSK) modulation and spreading sequence
- FIG9 a is a schematic diagram of a connection topology 1 of an AIoT device
- FIG9 b is a schematic diagram of a connection topology 2 of an AIoT device
- FIG9e is a schematic diagram of a connection topology 4 of an AIoT device
- FIG. 10 is a schematic diagram of information interaction between a terminal having a main communication module and an extremely low power consumption communication module and a network side device;
- FIG11 is a flowchart of a transmission power control method according to an embodiment of the present application.
- FIG12 is a second flowchart of a transmission power control method provided in an embodiment of the present application.
- FIG13 is a schematic diagram of a structure of a transmission power control device provided in an embodiment of the present application.
- FIG14 is a second structural diagram of a transmission power control device provided in an embodiment of the present application.
- FIG15 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application.
- FIG16 is a schematic diagram of the structure of a terminal provided in an embodiment of the present application.
- FIG17 is a schematic diagram of the structure of a network side device provided in an embodiment of the present application.
- first, second, etc. of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by “first” and “second” are generally of one type, and the number of objects is not limited, for example, the first object can be one or more.
- “or” in the present application represents at least one of the connected objects.
- “A or B” covers three schemes, namely, Scheme 1: including A but not including B; Scheme 2: including B but not including A; Scheme 3: including both A and B.
- the character "/" generally indicates that the objects associated with each other are in an "or” relationship.
- indication in this application can be a direct indication (or explicit indication) or an indirect indication (or implicit indication).
- a direct indication can be understood as the sender explicitly informing the receiver of specific information, operations to be performed, or request results in the sent indication;
- an indirect indication can be understood as the receiver determining the corresponding information according to the indication sent by the sender, or making a judgment and determining the operation to be performed or the request result according to the judgment result.
- LTE Long Term Evolution
- LTE-A Long Term Evolution-Advanced
- CDMA Code Division Multiple Access
- TDMA Time Division Multiple Access
- FDMA Frequency Division Multiple Access
- OFDMA Orthogonal Frequency Division Multiple Access
- SC-FDMA Single-carrier Frequency Division Multiple Access
- 6G system and 6G evolution system as well as IEEE 802.11 system (i.e. WiFi system), Bluetooth system, Long Range Radio (LoRa), Zigbee system, wireless optical communication, backscatter communication, low-power Internet of Things system and other communication systems.
- system and “network” in the embodiments of the present application are often used interchangeably, and the described technology can be used for the above-mentioned systems and radio technologies as well as other systems and radio technologies.
- NR New Radio
- 6G 6th Generation
- FIG1 shows a block diagram of a wireless communication system applicable to the embodiment of the present application.
- the wireless communication system includes a terminal 11 and a network side device 12 .
- the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (Ultra-mobile Personal Computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), an augmented reality (Augmented Reality, AR), a virtual reality (Virtual Reality, VR) device, a robot, a wearable device (Wearable Device), a flight vehicle (flight vehicle), a vehicle user equipment (VUE), a shipborne equipment, a pedestrian terminal (Pedestrian User Equipment, PUE), a smart home (home appliances with wireless communication functions, such as refrigerators, televisions, washing machines or furniture, etc.), a game console, a personal computer (Personal Computer, PC
- Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc.
- the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application.
- the network side device 12 may include an access network device or a core network device, wherein the access network device may also be called a radio access network (Radio Access Network, RAN) device, a radio access network function or a radio access network unit.
- the access network device may include a base station, a wireless local area network (Wireless Local Area Network, WLAN) access point (Access Point, AP) or a wireless fidelity (Wireless Fidelity, WiFi) node, etc.
- WLAN wireless Local Area Network
- AP Access Point
- WiFi wireless Fidelity
- the base station can be called Node B (Node B, NB), Evolved Node B (Evolved Node B, eNB), the next generation Node B (the next generation Node B, gNB), New Radio Node B (New Radio Node B, NR Node B), access point, Relay Base Station (Relay Base Station, RBS), Serving Base Station (Serving Base Station, SBS), Base Transceiver Station (Base Transceiver Station, BTS), radio base station, radio transceiver, base Basic Service Set (BSS), Extended Service Set (ESS), home Node B (HNB), home evolved Node B (home evolved Node B), Transmission Reception Point (TRP) or other appropriate term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that, in the embodiments of the present application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.
- the core network equipment may include but is not limited to at least one of the following: core network nodes, core network functions, mobility management entity (Mobility Management Entity, MME), access mobility management function (Access and Mobility Management Function, AMF), session management function (Session Management Function, SMF), user plane function (User Plane Function, UPF), policy control function (Policy Control Function, PCF), policy and charging rules function unit (Policy and Charging Rules Function, PCRF), edge application service discovery function (Edge Application Server Discovery ...
- MME mobility management entity
- AMF Access and Mobility Management Function
- SMF Session Management Function
- SMF Session Management Function
- UPF User Plane Function
- Policy Control Function Policy Control Function
- PCRF Policy and Charging Rules Function
- edge application service discovery function Edge Application Server Discovery ...
- UPF User Plane Function
- UPF user plane function
- UPF user plane function
- UPF user plane function
- UPF user plane function
- UPF user plane function
- UPF user plane function
- UPF user plane function
- UPF user plane function
- UPF user plane function
- UPF user plane function
- UPF user plane function
- UPF user plane function
- UPF user plane function
- UPF user plane function
- UPF user plane function
- UPF User Plane Function
- UPF user plane function (User Plane Function, UPF)
- user plane function User Plane Function
- UPF user plane function (User Plane Function, UPF)
- user ion, EASDF Unified Data Management
- UDM Unified Data Repository
- HSS Centralized network configuration
- CNC Centralized network configuration
- NEF Network Exposure Function
- NEF Network Exposure Function
- BEF Binding Support Function
- AF Application Function
- BSC Backscatter Communication
- Backscatter communication refers to the backscatter communication device using the radio frequency signals from other devices or the environment to modulate the signal to transmit its own information.
- the backscatter communication device may include at least one of the following:
- Device A refers to the backscatter communication device in traditional Radio Frequency Identification (RFID), which is generally a tag and belongs to Passive-IoT device;
- RFID Radio Frequency Identification
- Device B refers to a semi-passive IoT device, which has a certain amplification capability for downlink reception or uplink reflection.
- Device C refers to an active device that can send signals to a reader without relying on reflection of the incident signal.
- the energy source of the above backscatter communication devices can come from the environment, such as ambient radio frequency (RF) signals, thermal energy, kinetic energy, wind energy, etc., and they can also be called ambient IoT devices (Ambient IoT device).
- RF radio frequency
- thermal energy thermal energy
- kinetic energy thermal energy
- wind energy etc.
- ambient IoT devices Ambient IoT device
- a simple implementation of backscatter communication is as follows: when the tag needs to send a ‘1’, the tag reflects the incident carrier signal, and when the tag needs to send a ‘0’, it does not reflect.
- the backscatter communication device controls the reflection coefficient ⁇ of the circuit by adjusting its internal impedance, thereby changing the amplitude, frequency, phase, etc. of the incident signal to achieve signal modulation.
- the reflection coefficient ⁇ of the signal can be calculated using the following formula:
- Z_0 is the antenna characteristic impedance and Z_1 is the load impedance.
- the incident signal is S_in(t)
- the design idea is to not change the transmitting architecture of the base station. Therefore, appropriate data is sent on the OFDM subcarrier to make it appear as a square wave signal in the time domain.
- the generation framework is shown in Figure 4.
- offset quadrature phase shift keying OFDQPSK
- DBPSK differential binary phase shift keying
- the modulation process of O-QPSK can be described as follows: the serial input binary data code stream is divided into two different paths, I and Q, where "I” is used to be the "in-phase” component of the data waveform, and “Q” is the "orthogonal" part of the data waveform, that is, the even bits of the original input data are assigned to the I path, and the odd bits are assigned to the Q path, and the code streams of the in-phase and orthogonal branches are staggered in time by half a symbol period.
- the carrier is modulated with the I and Q data respectively, that is, one of the four discrete phase changes is used to represent a symbol (a bit pair) to be transmitted.
- BPSK is similar to QPSK in that both use phase to carry symbol information. For example, when the input symbol is “1”, the output of the baseband modulator is 1 (phase 0 degrees); when the input symbol is "0”, the output of the baseband modulator is -1 (phase 0 degrees).
- phase ambiguity means that the recovered digital information will change from “0” to "1” or from "1” to "0”, resulting in incorrect recovery. This phenomenon of incorrect recovery in the receiving system due to the inversion of the local reference carrier is called “phase ambiguity”.
- differential coding is introduced so that the decoding at the receiving end is judged based on the change in phase, rather than the absolute value of the phase. This is DBPSK.
- MSK Minimum Shift Keying
- FSK binary frequency shift keying
- CP-FSK continuous phase frequency shift keying
- MSK modulation method is a special form of CP-FSK, and its modulation index is 0.5.
- the MSK modulation principle can be expressed as the following formula:
- ⁇ k is called the additional phase function to ensure the phase continuity between different code elements
- ⁇ ct is the carrier angular frequency
- Ts is the code element width
- ak is the phase constant of the kth code element.
- the modulation block diagram of MSK is shown in Figure 7.
- GMSK Gaussian Minimum Shift Keying
- A represents the signal envelope
- ⁇ c represents the carrier angular frequency
- ambient IoT devices are characterized based on their energy storage capacity and their ability to generate radio frequency signals for transmission.
- the AIoT device has one of the following energy storage capabilities:
- Storage capacity 1 No ability to store energy
- Storage capacity3 Energy can be stored up to E2 joules.
- Device A no energy storage, no independent signal generation/amplification, i.e. backscatter transmission;
- Device B has energy storage and no independent signal generation, i.e. backscatter transmission.
- the use of stored energy may include amplification of the reflected signal;
- Device C has energy storage and has independent signal generation, i.e. active RF components for transmission.
- connection topology 1 of the AIoT device the AIoT device and the base station (BS) establish a bidirectional direct connection.
- the AIoT device establishes a bidirectional connection with an intermediate node, which may be a relay node, an IAB node, a user equipment (UE), a repeater, etc.
- the intermediate node transmits the data and/or signaling of the AIoT device to the base station, or the intermediate node transmits the data and/or signaling of the base station to the AIoT device.
- the AIoT device sends data/signaling to the base station and receives data/signaling from an auxiliary node; or the AIoT device receives data/signaling from the base station and sends data/signaling to an auxiliary node.
- the auxiliary node can be a relay, IAB node, UE, repeater, etc.
- connection topology 4 of the AIoT device As shown in Figure 9e, in the connection topology 4 of the AIoT device, the AIoT device and the UE establish a bidirectional direct connection.
- the extremely low power consumption communication module in the embodiment of the present application is similar to the above-mentioned AIoT device, except that the communication device having the extremely low power consumption communication module also has a main communication module.
- the AIoT device mentioned in the following embodiments of the present application refers to the extremely low power consumption communication module.
- the NR protocol defines the power control of uplink channels or signals, such as Physical Uplink Shared Channel (PUSCH), Physical Uplink Control Channel (PUCCH), Sounding Reference Signal (SRS) and Physical Random Access Channel (PRACH).
- PUSCH Physical Uplink Shared Channel
- PUCCH Physical Uplink Control Channel
- SRS Sounding Reference Signal
- PRACH Physical Random Access Channel
- a UE sends PUSCH on an active uplink (UL) bandwidth part (BWP) b of carrier f of serving cell c using parameter set configuration indexed j and PUSCH power control process indexed l, the UE shall determine the PUSCH transmission power P PUSCH,b,f,c (i,j,q d ,l) at PUSCH transmission opportunity i as:
- the parameter l is used to represent the process index of the closed-loop power control, and qd represents the reference signal index.
- PCMAX,f,c (i) is the maximum transmit power of the UE at time i, which is defined for the carrier and the cell;
- PO_PUSCH,b,f,c (j) is the target received power (on a resource block (RB) with a 15kHz subcarrier spacing (SCS)) of the open-loop control configuration index j, which is defined for the BWP, carrier and cell;
- PLb ,f,c ( qd ) is the downlink path loss estimated by the UE using the reference signal qd , which is defined for the BWP, carrier and cell;
- ⁇ b ,f,c (j) is the partial path loss compensation factor defined by the open-loop control configuration index j, which is defined for the BWP, carrier and cell;
- ⁇ TF ,b,f,c (i) defines the transmit power required for each RE of the UE at time i, which is defined for the BWP, carrier and cell, and is only used for single-layer transmission and is
- the total bandwidth of PUSCH is determined, which is defined for BWP, carrier and cell;
- f b,f,c (i,l) is the bias value introduced by closed-loop power control process l at time i, which is the sum of the power adjustment values indicated by the transmit power control (TPC) command at the past time, that is,
- TPC transmit power control
- ⁇ PUSCH,b,f,c (m,l) is the power adjustment value indicated by the mth TPC command of the lth closed-loop power control process, which is defined for BWP, carrier and cell.
- the UE determines the PUCCH transmit power P PUCCH,b,f,c (i,q u ,q d ,l) in PUCCH transmission opportunity i as:
- qu is the index of PUCCH (UE may need to transmit multiple PUCCHs at the same time).
- PO_PUCCH,b,f,c (q u ) is the target received power of the q u -th PUCCH, which is defined for BWP, carrier and cell;
- b,f,c (i,l) is the bias value introduced by the closed-loop power control process l at time i, and is the sum of the power adjustment values indicated by the TPC commands at past times.
- the UE uses the SRS power control process with index l to send SRS on the active UL BWP b of carrier f of serving cell c based on the configuration of the SRS resource set, the UE determines the SRS transmission power PSRS,b,f,c (i, qs ,l) in SRS transmission opportunity i as:
- PL b,f,c (q d ) represents the downlink path loss estimated based on the reference signal q d .
- PO_SRS,b,f,c ( qs ) is the SRS target received power of the qs- th SRS resource set, which is defined for BWP, carrier and cell;
- M SRS,b,f,c (i) is the number of RBs of SRS at time i. Combined with SCS, it determines the total bandwidth of SRS, which is defined for BWP, carrier and cell;
- SRS,b,f,c (q s ) is the partial path loss compensation factor of the SRS resource set q s , which is defined for BWP, carrier and cell;
- iv)h b,f,c (i,l) is the bias value introduced by closed-loop power control process l at time i, which can be the same as the power control bias value of PUSCH, or (when there is no PUSCH transmission) the sum of the power adjustment values indicated by TPC commands at past times.
- the UE determines the transmission power P R ACH on the active UL BWP b of carrier f of cell c based on the downlink (DL) reference signal (RS) of cell c in transmission opportunity i.
- P R ACH,B,F,c (i) is defined as:
- P PRACH,b,f,c (i) min ⁇ P CMAX,f,c (i),P PRACH,target,f,c +PL b,f,c ⁇ ;
- PRACH power control and PUSCH power control include the following differences:
- PPRACH,target,f,c is the target received power of PRACH, given by the parameter: PREAMBLE_RECEIVED_TARGET_POWER, which is defined for BWP, carrier and cell;
- PL b,f,c is the downlink path loss estimated by the UE using the unique associated reference signal (referenceSignalPower–higher layer filtered RSRP in dBm), which is defined for BWP, carrier and cell.
- the transmit power control method defined by NR is designed based on the assumption of multi-carrier signals such as OFDM/DFT-S-OFDM and UE-gNB/IAB direct connection topology, while the ultra-low power communication module may use single-carrier signals such as OOK/ASK/FSK, and the connection topology is not limited to a simple direct connection topology. For example, it may be a separate architecture of topology 3. Therefore, the transmit power control method in the relevant technology is not suitable for power control of ultra-low power communication modules.
- the power control of PUSCH, PUCCH, and SRS all need to consider the format of the signal, that is, the bandwidth occupied by the signal (number of RBs and SCS), and the number of bits (Bits Per RE) that each resource element (RE) needs to carry, and the occupied bandwidth is calculated based on the assumption of OFDM signals.
- the extremely low power communication module may need to use new signals. Possible signal types include: OOK, ASK, FSK, GMSK, O-QPSK, DBPSK, etc., and these signals are all single-carrier modulated signals. The actual occupied bandwidth of different signals and the number of bits required for each symbol will affect the calculation of the transmit power.
- the power calculation formula of NR in the related art is calculated based on an OFDM signal with a certain subcarrier spacing (such as 15kHz), which cannot be directly used for the power calculation of a single-carrier signal. Therefore, there is a lack of a transmit power control method for extremely low power communication modules in the related art.
- single carrier modulation is defined as a modulation technology that uses only one carrier in a fixed frequency band.
- one symbol can carry at most two orthogonal signals (divided into I and Q).
- the bandwidth occupied by the single carrier signal is also fixed. For example, assuming a double-sideband ASK signal, if the transmission pulse is an ideal time domain sinc signal, then the bandwidth occupied by the signal is 1/ Ts , where Ts is the time width of one pulse, which is also the time length of one modulation symbol.
- the ultra-low power communication module is generally used alone on terminals with high requirements for power consumption, complexity, and battery life, such as IoT terminals.
- An extended application scenario is to apply the ultra-low power communication module to non-IoT devices such as mobile phones, including terminals and network-side devices, so that the device has both the main communication module and the ultra-low power communication module.
- the main communication module has a relatively high rate and spectrum efficiency, but at the same time, the power consumption is also relatively high. If it is turned on for a long time, it will reduce the battery life of the device. It is suitable for transmitting a large amount of data in a short time; while the ultra-low power communication module is the opposite. Its rate and spectrum efficiency may be relatively low, but the power consumption is very low.
- FIG. 10 shows a schematic diagram of information interaction between a terminal with a main communication module and an ultra-low power communication module and a network-side device.
- the two devices exchange the first information and the second information through the ultra-low power communication module, and then exchange information with the main communication module in the device, such as waking up the main communication module by the ultra-low power communication module for further operation.
- a method for controlling the transmission power of the extremely low power consumption communication module and a configuration method for power control of the extremely low power consumption communication module and the main communication module are provided.
- the first communication module namely the main communication module, is also referred to as MR.
- the main communication module generally refers to a module that supports traditional communication modes (such as 4G, 5G, etc.), for example, a module that supports OFDM communication (including uplink and/or downlink).
- the second communication module namely the ultra-low power communication module, is also referred to as or LR.
- the ultra-low power communication module refers to a module that supports sending signals in a backscatter manner (such as Device A or Device B of AIoT) or actively generates carrier signals in a low-power manner (such as Device C of AIoT) and/or supports a low-power receiving module (such as a low-power wake-up receiver).
- the ultra-low power communication module can also support energy harvesting (collecting energy from light, solar energy, wireless signals, etc.).
- the excitation source signal can be generated by the terminal with an extremely low power consumption communication module itself or by other devices.
- the excitation source signal is generated by the main communication module on the first device, or the excitation source signal is generated by other devices.
- the power consumption of the ultra-low power communication module is significantly lower than that of the main communication module.
- the power consumption of the ultra-low power communication module is generally tens of microwatts to hundreds of microwatts, while the power consumption of the main communication module is generally tens of milliwatts to thousands of milliwatts; the cost of the ultra-low power communication module is also significantly lower than that of the main communication module.
- an embodiment of the present application provides a transmission power control method, the execution subject of which is a first device.
- the transmission power control method includes the following steps:
- Step 111 A first device acquires first information, wherein the first device includes a first communication module and a second communication module, and the second communication module is an extremely low power consumption communication module.
- Step 112 The first device determines a first target transmission power of the first communication module and a second target transmission power of the second communication module based on the first information; wherein the first target transmission power is used for the first communication module to send a first signal, and the second target transmission power is used for the second communication module to send a second signal.
- the first device controls the first communication module to send a first signal according to the first target transmit power.
- the first target transmit power may be a transmit power on a specified time-frequency resource.
- the first device may control the first communication module to send the first signal according to the first target transmit power on the time-frequency resource corresponding to the first target transmit power.
- the first device controls the second communication module to send a second signal according to the second target transmit power.
- the second target transmit power may be a transmit power on a specified time-frequency resource.
- the first device may control the second communication module to send a second signal according to the second target transmit power on the time-frequency resource corresponding to the second target transmit power.
- the first device in the embodiment of the present application refers to a device having a first communication module and a second communication module, which may specifically be a network side device or a terminal.
- a first communication module and a second communication module
- the first device is a terminal.
- the execution order of the above steps 113 and 114 can be to execute step 113 first and then step 114, or to execute step 114 first and then step 113, or to execute step 113 and step 114 at the same time.
- the flow chart of the transmission power control method shown in Figure 11 is only an example and does not limit the execution order of step 113 and step 114.
- the first signal sent by the first communication module may be an OFDM signal
- the second signal sent by the second communication module may be a single carrier signal
- the first signal and the second signal may also be a combination of other types of signals, which is not specifically limited herein.
- the first information may directly indicate the first target transmission signal and the second target transmission signal, or may indicate related information used to determine the first target transmission signal and the second target transmission signal.
- the terminal acquires a first adjustment amount configured on the network side, and the first target transmit power of the first communication module is locally known;
- At least part of the first information agreed upon in the protocol is obtained.
- a main communication module i.e., a first communication module
- an extremely low power consumption communication module i.e., a second communication module
- power control of the two communication modules on the first device can be performed based on the first information, so that the first target transmission power of the first signal sent by the main communication module on the first device and the second target transmission power of the second signal sent by the extremely low power consumption communication module on the first device are more flexible, thereby improving the communication performance of the first device.
- the first information includes at least one of the following:
- the second target transmit power is determined based on the first target transmit power and the first adjustment amount
- the first target transmit power is determined based on the second target transmit power and the third adjustment amount
- the first parameter and the second parameter are The first parameter and the second parameter;
- the first parameter includes a parameter used to determine the first target transmit power; and the second parameter includes a parameter used to determine the second target transmit power.
- Implementation method 1 the first information includes a first target transmission power and a first adjustment amount of the first communication module.
- the difference between the first target transmit power of the first communication module and the second target transmit power of the second communication module and the corresponding first target transmit power can be used as the first adjustment amount.
- the corresponding second target transmit power can be determined with the first target transmit power as a reference.
- the network indicates or agrees on a power adjustment amount ⁇ MR->LR
- the second target transmit power of a target transmit channel (PUSCH, PRACH, SRS, PUCCH, etc.) of LR is the sum of the first target transmit power of the channel corresponding to the main communication module and the adjustment amount ⁇ MR->LR .
- parameter i is the symbol/time index
- parameter l is the process index of closed-loop power control
- qd is the reference signal index
- qu is the index of PUCCH
- qs is the SRS resource set index
- c is the serving cell index
- f is the carrier index
- b is the bandwidth part (Bandwidth Part, BWP) index.
- b, c, f, i, j, q, l of MR may be the same as b’, c’, f’, i’, j’, q’, l’ of LR.
- At least one of b,c,f,i,j,q,l of MR and b’,c’,f’,i’,j’,q’,l’ of LR may be different.
- the first device may obtain the association relationship between b,c,f,i,j,q,l of MR and b’,c’,f’,i’,j’,q’,l’ of LR based on network-side indication or protocol agreement, thereby determining the second target transmit power of the associated b’,c’,f’,i’,j’,q’,l’ based on the first target transmit power of b,c,f,i,j,q,l as a reference, or determining the first target transmit power of the associated b,c,f,i,j,q,l based on the second target transmit power of b’,c’,f’,i’,j’,q’,l’ as a reference.
- P LR,PUSCH,b′,f′,c′ (i′,j′,q′ d ,l′) indicates that when the LR sends PUSCH on the active uplink (UL) bandwidth part (Bandwidth Part, BWP) b′ of the carrier f′ of the serving cell c′ using the parameter set configuration with index j′ and the PUSCH power control process with index l′, the LR will set the second target transmit power of the PUSCH at the PUSCH transmission opportunity i′;
- UL active uplink
- BWP Bandwidth Part
- P MR,PUSCH,b,f,c (i,j,q d ,l) indicates that when the MR sends PUSCH on the active uplink (UL) bandwidth part (BWP) b of carrier f in serving cell c using parameter set configuration with index j and PUSCH power control process with index l, the LR will set the second target transmit power of PUSCH at PUSCH transmission opportunity i;
- the above-mentioned P LR,PUCCH,b′,f′,c′ (i′,q u ′,q′ d ,l′) represents the second target transmit power of PUCCH transmitted by LR, and P MR,PUCCH,b,f,c (i,q u ,q d ,l) represents the first target transmit power of PUCCH transmitted by MR;
- the above-mentioned P LR,SRS,b′,f′,c′ (i′,q s ′,l′) represents the second target transmit power of SRS transmitted by LR, and P MR,SRS,b,f,c (i,q s ,l) represents the first target transmit power of SRS transmitted by MR;
- the above-mentioned P LR,PRACH,b′,f′,c′ (i′) represents the second target transmit power of PRACH transmitted by LR, and P MR,PRACH,b,f,c (i) represents the first target
- Implementation method 2 the first information includes the second target transmission power and the third adjustment amount of the second communication module.
- the differences between this embodiment and the above-mentioned embodiment 1 include: in this embodiment 2, the second target transmit power is used as a reference, and the second target transmit power is adjusted based on the third adjustment amount to obtain the corresponding first target transmit power.
- a method for performing power control on another module using one of the first communication module and the second communication module as a reference module is more suitable for performing incremental power control when another module is activated during the operation of one module, thereby avoiding requiring the first device to reacquire all power control parameters and re-estimate the path loss, thereby saving signaling overhead and delay in the power control process.
- Implementation method three the first information includes a first parameter and a second adjustment amount of the first communication module.
- the first parameter may be adjusted based on the second adjustment amount to obtain the second parameter. Thereafter, the first device may calculate the first target transmit power based on the first parameter, and calculate the second target transmit power based on the second parameter.
- the first parameter of the first communication module can refer to the parameters in the power control calculation formula of NR in the related technology, which will not be repeated here.
- the second parameter of the second communication module may be a parameter in a power control calculation formula for the second signal.
- the first parameter includes at least one or a combination of at least two of the following parameters corresponding to the first communication module:
- a first target received power a first path loss, a first maximum transmit power, a type of the first signal, a bias value of a first closed-loop power control, the number of RBs of an occupied bandwidth of the first signal, the number of subcarriers contained in each RB of the first signal, the average number of bits carried by each resource element RE in the first signal, and a first partial path loss compensation factor;
- the first path loss is a path loss between the first device and a third device, and the third device is a receiving end device of the first signal;
- the second parameter includes at least one or a combination of at least two of the following parameters corresponding to the second communication module:
- second target received power, second path loss, second maximum transmit power type of the second signal, time length of a symbol in the second signal, frequency domain width of a symbol in the second signal, bias value of the second closed-loop power control, number of RBs of the occupied bandwidth of the second signal, number of subcarriers contained in each RB of the second signal, number of bits carried on average per symbol in the second signal, second partial path loss compensation factor;
- the second path loss is the path loss between the first device and a fourth device, and the fourth device is a receiving end device of the second signal.
- the fourth device and the third device may be the same device or different devices, which is not specifically limited herein.
- the fourth device may be the base station in Figure 9a, the relay node in Figure 9b, the amplitude node in Figure 9c, the base station in Figure 9d, and the UE in Figure 9e.
- the fourth device may be the base station in Figure 9a, the relay node in Figure 9b, the base station in Figure 9c, the auxiliary node in Figure 9d, and the UE in Figure 9e.
- the manners of calculating the second target transmit power according to the second parameter include the following two:
- Method 1 Convert relevant parameters of the second signal into parameters of the OFDM signal, and substitute the converted parameters into an uplink power calculation formula in the related art to calculate the second target transmission power of the second signal.
- the parameters of the second signal can be converted into parameters of an equivalent OFDM signal, and the parameters of the equivalent OFDM signal can be substituted into the power control calculation formula of NR in the relevant technology to obtain the second target transmission power of the single-carrier signal.
- the second parameter represents a parameter of an OFDM signal equivalent to the second signal.
- the second target transmit power can be determined according to the second parameter based on the following formula:
- P' represents the second target transmit power
- P'CMAX represents the maximum transmit power of the second communication module
- P'O represents the target receive power of the equivalent OFDM signal on 1 RB
- PL' represents the path loss of the second signal
- ⁇ ' TF represents the transmission power required by the second communication module in each resource element RE
- f' represents the bias value for closed-loop power control of the second signal.
- ⁇ ' TF is determined based on the following formula:
- ⁇ ' represents the average number of bits carried by each symbol of the second signal
- ⁇ " represents the average number of bits carried by each RE of the second signal
- ⁇ ' 0 and ⁇ ' 1 are offset values.
- ⁇ ' is the average number of bits per single carrier symbol
- ⁇ TF in the OFDM power control calculation formula in the related art is defined according to the average number of bits carried by one RE. Therefore, ⁇ ' needs to be divided by An average number of bits carried by each RE of the second signal is obtained.
- the above-mentioned second target transmit power may specifically refer to the i’th symbol/transmission time, the j’th open-loop control configuration, the second target transmit power of the second signal calculated based on the reference signal q’, and the l’th closed-loop power control process.
- the above-mentioned i’, j’, q’, l’ parameters are omitted in the calculation formula of the target transmit power in the embodiment of the present application.
- the second target transmit power of the second signal at the i'th symbol/transmission time, the j'th open-loop control configuration, based on the reference signal q', and the l'th closed-loop power control process can be calculated based on the following formula:
- P'O (j') is defined the same as NR in the related art, which is the target received power of an equivalent OFDM signal assumed on 1 RB of 15kHz SCS.
- ⁇ '0 and ⁇ '1 are two bias values related to the transmission channel (data/signaling), modulation mode, etc., which can be constants or functions of j' and l', where l' is the power control process index; j' is the open-loop control configuration index; ⁇ '0 and ⁇ '1 are optional parameters.
- a parameter is optional, which means that the power adjustment does not change with the parameter (for example: when ⁇ '0 and ⁇ '1 are 1 , it is equivalent to being ineffective).
- f'(i',l') is the bias value introduced by the closed-loop power control process l' at time i'. It can be indicated by signaling as an absolute value or by the network side as a differential value. The UE obtains the absolute value by cumulative summation.
- f'(i',l')f(i,l) may not exist, and only open-loop power control is in effect.
- the above-mentioned target transmit power can also be defined for BWP b’, carrier f’ and cell c’.
- the above-mentioned b’, f’, c’ parameters are omitted in the calculation formula of the target transmit power in the embodiment of the present application.
- the second target transmission power of the second signal by the second communication module can be calculated based on the power control calculation formula for NR in the related art.
- Method 2 design an uplink power calculation formula for the second signal, and substitute the second parameter corresponding to the second signal into the formula to calculate the second target transmit power of the second signal.
- the second signal is a single carrier signal
- the second parameter is represented by a parameter in a power control calculation formula defined for the second signal.
- P'O ,S represents the target received power on one single carrier symbol
- ⁇ 'TF ,S represents the transmit power required by the second communication module on each single carrier symbol.
- P'O ,S can take the average power of the second signal, or take the accumulated sum of powers over a fixed bandwidth from the power spectrum density of the second signal as P'O ,S .
- the average power is 0.5.
- the power spectrum density (PSD) of the random signal is calculated/measured.
- the total power of a region within a certain bandwidth for power accumulation can be selected as P O,S according to certain criteria, such as selecting only the region within the first main lobe for power accumulation.
- ⁇ ' TF,S is determined based on the following formula:
- T 's represents the time length of a single carrier symbol in the second signal
- B' represents the frequency domain width of a single carrier symbol in the second signal
- ⁇ ' 2 and ⁇ ' 3 are two offset values.
- the above-mentioned second target transmit power may specifically refer to the i’th symbol/transmission time, the j’th open-loop control configuration, the second target transmit power of the second signal calculated based on the reference signal q’, and the l’th closed-loop power control process.
- the above-mentioned i’, j’, q’, l’ parameters are omitted in the calculation formula of the target transmit power in the embodiment of the present application.
- P' O,S (i') is defined as the second target received power on a single carrier symbol, which is independent of the bandwidth but related to the modulation mode, for example, it is defined as the average power under a certain modulation mode, the 3dB bandwidth power of the average power spectrum density, etc.;
- T s B 1, but in high spectrum efficiency communication, T s B may be set to ⁇ 1;
- ⁇ ' 2 and ⁇ ' 3 are two bias values related to the transmission channel (data/signaling) and modulation mode of the second signal, which can be constants or functions of j' and l', defined by the network side or protocol.
- ⁇ ' 2 and ⁇ ' 3 are optional parameters.
- the optional parameter means that the power adjustment does not change with the parameter (for example, when ⁇ ' 2 and ⁇ ' 3 are 1, it is equivalent to not taking effect).
- a calculation formula for uplink transmission power applicable to the single-carrier signal is defined based on the characteristics of the single-carrier signal.
- the second parameter of the single-carrier signal can be directly substituted into the above formula to calculate the second target transmission power of the second communication module for the single-carrier signal.
- Implementation method 4 the first information includes the second parameter and the fourth adjustment amount of the second communication module.
- this embodiment includes: in this embodiment 4, the second parameter is used as a reference, and the second parameter is adjusted based on the fourth adjustment amount to obtain the first parameter.
- the above implementation modes 3 and 4 can perform joint power control on the first communication module and the second communication module, so as to configure the power control parameters of the two communication modules through a power parameter configuration process. For example, if the two communication modules need to be turned on at the same time when the first device is turned on, the power control parameters of the two communication modules can be obtained based on the above implementation modes 3 and 4.
- Implementation method five the first information may directly indicate the first parameter and the second parameter.
- the first device may directly acquire the first parameter and the second parameter, and respectively calculate the first target transmit power and the second target transmit power based on the first parameter and the second parameter.
- the method further comprises:
- the first device acquires first associated information
- the first association information is used to indicate an association relationship between the first target transmit power, the first adjustment amount, and the second target transmit power
- the first association information is used to indicate an association relationship between the first parameter, the second adjustment amount and the second parameter
- the first association information is used to indicate an association relationship between the second target transmit power, the third adjustment amount and the first target transmit power
- the first association information is used to indicate an association relationship among the second parameter, the fourth adjustment amount, and the first target transmit power.
- the first associated information may be b, f, c, i, j, q, l of the first signal and b′, f′, c′, i’, j’, q’, l’ associated information of the second signal.
- association relationship between b,f,c,i,j,q,l and b′,f′,c′,i’,j’,q’,l’ may be indicated by network-side indication or protocol agreement.
- the first association information is used to indicate the association relationship between the first target transmit power, the first adjustment amount and the second target transmit power, so that the first target transmit power can be adjusted using the first adjustment amount to obtain the second target transmit power associated with the first adjustment amount and the first target transmit power.
- the first association information is used to indicate the association relationship between the first parameter, the second adjustment amount and the second parameter, so that the first parameter can be adjusted using the second adjustment amount to obtain the second parameter associated with the second adjustment amount and the first parameter.
- the first association information is used to indicate the association relationship between the second target transmit power, the third adjustment amount and the first target transmit power, so that the second target transmit power can be adjusted using the third adjustment amount to obtain the first target transmit power associated with the third adjustment amount and the second target transmit power.
- the first association information is used to indicate the association relationship between the second parameter, the fourth adjustment amount and the first target transmission power, so that the second parameter can be adjusted using the fourth adjustment amount to obtain the first parameter associated with the fourth adjustment amount and the second parameter.
- the second adjustment amount includes at least one of the following:
- Adjustment amount of target received power + ⁇ P MR->LR,O,b′,f′,c′ ;
- the power control of LR can refer to the downlink reference signal received power (Reference Signal Received Power, RSRP) of MR to calculate the path loss.
- RSRP Reference Signal Received Power
- the downlink path loss cannot be directly used as the UL path loss. This is because MR and LR may use different frequencies and different signal formats, and additional path loss bias values need to be added to compensate for these factors.
- the second adjustment amount may be associated with parameters such as i, j, q, l, for example, ⁇ P MR->LR,O,b′,f′,c′ (i′,j′,q′,l′).
- the method further includes:
- the first device measures, by using the first communication module, a reference signal from the fourth device to obtain a third path loss
- the first device determines a path loss offset value according to a difference between the reference signal and the second signal
- the first device determines the second path loss according to the third path loss and the path loss offset value.
- the third path loss may be a path loss between the first device and the fourth device measured based on a reference signal corresponding to the first communication module, and the second path loss is a path loss caused by transmitting the second signal between the first device and the fourth device.
- the signal transmitted by the first communication module and the signal transmitted by the second communication module may be signals of different transmission formats or different bandwidths. Therefore, it is necessary to determine the path loss bias value between the path losses measured based on the reference signal measured by the first communication module and the second signal based on the difference between the two signals, and adjust the third path loss obtained by measuring the reference signal between the first device and the fourth device based on the first communication module based on the path loss bias value to obtain the second path loss between the second communication module and the fourth device.
- the above path loss offset value may not be independently indicated by the second adjustment amount, but may be included in the second path loss or the offset value of the second closed-loop power control.
- the path loss measurement function of the first communication module may be used to determine the second path loss between the second communication module and the fourth device.
- the path loss measurement function of the second communication module can also be used to measure the second path loss between the second communication module and the fourth device.
- the second adjustment amount includes a first power adjustment amount, and the first power adjustment amount is used to indicate the power adjustment caused by converting the signal transmission bandwidth of the first communication module into the signal transmission bandwidth of the second communication module; or,
- the fourth adjustment amount includes a second power adjustment amount, where the second power adjustment amount is used to indicate a power adjustment caused by converting the signal transmission bandwidth of the second communication module to the signal transmission bandwidth of the first communication module.
- the first power adjustment amount and the second power adjustment amount are used to indicate power adjustment caused by different signal transmission bandwidths.
- the second signal is a single carrier signal
- the second signal uses the OFDM signal transmission bandwidth definition to calculate the second target transmission power:
- the first power adjustment amount is:
- the second power adjustment amount is:
- the second signal uses the bandwidth definition of OFDM to calculate the second target transmit power, which may be to convert the parameters of the second signal into the second parameters of the equivalent OFDM signal, and to calculate the second target transmit power by substituting the second parameters into the following formula:
- the parameter item corresponding to the signal bandwidth in LR is Since the signal bandwidth of LR is RBs (SCS is 2 ⁇ ′ ⁇ 15kHz), if the signal bandwidth of MR is (2 ⁇ ⁇ 15kHz), then the second power adjustment amount to be added is Right now equal
- the second signal when the first signal is an orthogonal frequency division multiplexing (OFDM) signal, the second signal is a single carrier signal, and the second signal uses a bandwidth definition of a single carrier to calculate the second target transmit power:
- OFDM orthogonal frequency division multiplexing
- the first power adjustment amount is:
- the second power adjustment amount is:
- the second adjustment amount includes a third power adjustment amount, and the third power adjustment amount is used to indicate the power adjustment caused by converting the signal transmission format of the first communication module into the signal transmission format of the second communication module; or,
- the fourth adjustment amount includes a fourth power adjustment amount, and the fourth power adjustment amount is used to indicate the power adjustment caused by converting the signal transmission format of the second communication module into the signal transmission format of the first communication module.
- the third power adjustment amount and the fourth power adjustment amount are used to indicate power adjustment caused by different signal transmission formats.
- the third power adjustment amount includes: ⁇ LR,TF - ⁇ MR,TF ;
- the fourth power adjustment amount includes: ⁇ MR,TF ⁇ LR,TF ;
- ⁇ MR,TF represents the transmission power required by the first communication module in each resource element RE
- ⁇ LR,TF represents the transmission power required by the second communication module in each RE
- the second signal is a single carrier signal, and the second signal uses the bandwidth definition of OFDM to calculate the second target transmission power:
- the second signal is a single carrier signal, and the second signal uses a bandwidth definition of a single carrier to calculate the second target transmit power:
- ⁇ ' represents the average number of bits carried by each symbol in the second signal; Indicates the number of OFDM subcarriers contained in 1 RB; represents the number of RBs of the bandwidth B occupied by the second signal; ⁇ ' 0 and ⁇ ' 1 are two offset values; Ts represents the time length of a single carrier symbol; B represents the frequency domain width of a single carrier symbol; ⁇ '2 and ⁇ '3 are two offset values.
- At least one of the first power adjustment amount, the second power adjustment amount, the third power adjustment amount, and the fourth power adjustment amount may be indicated by the network side or agreed upon by protocol.
- At least one of the first power adjustment amount, the second power adjustment amount, the third power adjustment amount and the fourth power adjustment amount can be determined by the first device according to the difference between the first signal sent by the first communication module and the second signal sent by the second communication module.
- the configuration method of the adjustment amount may include at least one of the following:
- Configuration method 2 predefine or configure at least two groups of possible adjustment value correspondences, and the network side instructs to activate one of the groups of adjustment values.
- each set of adjustment amounts is uniquely indicated by its own index (0, 1), and thereafter, the network side may indicate the index so that the first device uses a set of adjustment amounts corresponding to the index.
- Configuration method three respectively configure the static power control parameters in the first parameter and the second parameter, and indicate the dynamic power control parameters in the first parameter and the second parameter through TPC signaling.
- the first device acquiring the first information includes:
- the first device obtains first configuration information
- the first device receives transmission power control TPC signaling
- the first configuration information is used to configure a first static power control parameter and a second static power control parameter;
- the TPC signaling indicates a first dynamic power control parameter and a second dynamic power control parameter;
- the first parameter includes the first static power control parameter and the first dynamic power control parameter;
- the second parameter includes the second static power control parameter and the second dynamic power control parameter.
- the first configuration information indicates static power control parameters, such as target received power, reference signal, partial path loss compensation factor, etc.
- the target static power control parameter includes at least one of the following:
- a parameter set consisting of a target received power and a partial path loss compensation factor
- the target static power control parameter includes at least one of the first static power control parameter and the second static power control parameter.
- the first configuration information may be configuration information of power control parameters of the OFDM communication module in the related art. For example, a field is added to the configuration information of the power control parameters of the OFDM communication module to indicate the first static power control parameter through the existing field in the related art, and the second static power control parameter is indicated by adding a field.
- the network side may indicate at least one item of the following parameter groups to the first device through the first configuration information:
- the target received power of MR is p0-MR, and the target received power of LR is p0-LR;
- the first configuration information may indicate an offset value of the target received power of the MR compared to a given threshold, and an offset value of the target received power of the LR compared to a given threshold, for example, the target received power of the Msg3 PUSCH may be an offset value compared to the target received power of the PRACH.
- each of the above parameter groups may include 1 absolute value and 1 relative value.
- the absolute value of the parameter value of MR is directly indicated, while the parameter value of LR is indicated in the form of an offset value (Offset).
- the parameter value actually used by LR is the sum/difference/product/quotient of the MR parameter value and the Offset.
- the first configuration information may indicate a first static power control parameter of at least one channel/signal of the MR and a second static power control parameter of at least one channel/signal of the LR.
- the power control parameters of MR and LR are configured separately and the signal/channel types of the two are different, the parameters of a channel/signal of MR or LR can still be used as reference parameters of a channel/signal of another module. Then, the first configuration information only needs to indicate the static power control parameters of the reference channel/signal and the offset value of the static power control parameters of the other module relative to the reference channel/signal.
- the TPC signaling is used to indicate dynamic power control parameters, such as a power control offset value.
- the TPC signaling may be a TPC field in the DCI.
- the power of PUSCH, SRS or PUCCH can be dynamically adjusted through TPC signaling, and according to different usage scenarios, TPC signaling can indicate an absolute power bias value or a relative power bias value. The latter requires all relative power bias values to be accumulated for power control.
- the target dynamic power control parameter includes at least one of the following:
- a first power offset value and a first scaling factor wherein a second power offset value is determined based on the first power offset value and the first scaling factor
- the first power offset value being determined based on the second power offset value and the second scaling factor
- a first identifier wherein the first identifier is associated with a first power offset value and a second power offset value
- the target power offset value is a power offset value of the first communication module or the second communication module
- the target dynamic power control parameter includes at least one of the first dynamic power control parameter and the second dynamic power control parameter; the first power offset value is the offset value of the first target transmit power; and the second power offset value is the offset value of the second target transmit power.
- the TPC field in order to use TPC signaling to adjust the power of two modules, the TPC field may be redesigned and interpreted in at least one of the following ways:
- Method 1 The network side indicates which of the first communication module and the second communication module the power offset value carried in the TPC field is applied to.
- the first device interprets the scaling factor s from the TPC field, and performs at least one of the summation/difference/product/quotient operations based on the power offset value in the TPC field and the scaling factor s to obtain the power offset value of the other communication module in the first communication module and the second communication module.
- the power offset value carried in the above TPC field may indicate an absolute power offset value, or a relative power offset value, which is not specifically limited here.
- Method 2 The first identifier can be associated with the first power bias value and the second power bias value in advance through network side configuration or protocol agreement, and the first identifier can be carried through the TPC field. In this way, the first device can obtain two-dimensional information based on the one-dimensional TPC field based on a new interpretation method, that is, interpret the first power bias value and the second power bias value.
- the network side configures the association information between the first identifier and the first power offset value and the second power offset value through the following Table 2:
- the TPC field carries a first identifier (i.e., 0 or 1)
- the first device determines the LR absolute power offset value and the MR absolute power offset value indicated by the network side based on the first identifier carried by the TPC field, or the LR relative power offset value and the MR relative power offset value, or the LR absolute power offset value and the MR relative power offset value, or the LR relative power offset value and the MR absolute power offset value.
- Mode 3 Designing the TPC field to indicate two TPC values, where the two TPC values are respectively the TPC values of the first communication module and the second communication module.
- TPC contains two fields, namely ⁇ TPC 1, TPC 2 ⁇ , where TPC 1 acts on MR or LR, and TPC 2 acts on another module.
- TPC 1 and TPC 2 mentioned above may be the same or different, and no specific limitation is made here.
- TPC 2 may indicate an offset value relative to TPC 1.
- the TPC field may only act on one or both of the MR and the LR, and the communication module to which the TPC field acts may be indicated in an explicit or implicit manner.
- An implicit indication method is: assuming that the DCI where the TPC is located is a DCI that only schedules a module in the MR and LR, then the TPC value only acts on the module.
- the target dynamic power control parameter can be interpreted from the TPC field by designing or interpreting the TPC field.
- the maximum transmit power is determined by the Radio Resource Control (RRC) parameter P-Max, but NR has only one communication module.
- RRC Radio Resource Control
- the first device has two communication modules. At this time, the maximum transmit power of the two communication modules needs to be limited.
- the first target transmit power and the second target transmit power satisfy at least one of the following conditions:
- the first target transmit power is less than or equal to the first maximum transmit power
- the second target transmit power is less than or equal to the second maximum transmit power
- Second condition the sum of the first target transmit power and the second target transmit power is less than or equal to the target maximum transmit power, and the target maximum transmit power is the maximum total transmit power of the first communication module and the second communication module.
- independent maximum transmit powers may be set for the MR and the LR.
- the target transmit power of the MR and the target transmit power of the LR need to be less than or equal to their respective corresponding maximum transmit powers.
- the network side may indicate a maximum transmit power P-Max and a scaling value P-Scale.
- P-Max may be used as the maximum transmit power of one of MR and LR
- the maximum transmit power of the other of MR and LR may be obtained by performing an operation (such as at least one of sum/difference/product/quotient) on P-Scale and P-Max.
- a maximum transmission power may be set for the first device.
- the sum of the target transmission powers of the MR and the LR is less than or equal to the maximum transmission power of the first device.
- the method when the first target transmit power and the second target transmit power do not satisfy the second condition, the method further includes:
- the first device acquires second indication information, where the second indication information is used to indicate a transmission power allocation method of the first communication module and the second communication module;
- the first device updates the first target transmit power and the second target transmit power according to the second indication information and the target maximum transmit power, wherein the updated first target transmit power and the second target transmit power meet the second condition.
- the second indication information indicates the transmission power allocation method of the LR and the MR, so as to prevent the sum of the target transmission powers of the LR and the MR from exceeding the maximum transmission power of the first device.
- the second indication information is used to indicate any of the following:
- the target transmit power of the first communication module or the second communication module is preferentially reduced so that the sum of the first target transmit power and the second target transmit power is less than or equal to the target maximum transmit power.
- the second indication information may constrain the target transmit power of at least one of the MR and the LR in any of the following ways:
- the power ratio of at least one of MR and LR so that the ratio of the transmit power of at least one of MR and LR to the maximum transmit power of the first device can be determined according to the power ratio. For example: limit the maximum transmit power of LR to be less than or equal to 20% of the maximum transmit power of the first device, and the remaining 80% of the maximum transmit power of the first device is the maximum transmit power of MR.
- the second indication information can be used to indicate how to reduce the transmit power of the first device, for example: scaling the target transmit powers of MR and LR so that the sum of the target transmit powers of MR and LR is less than or equal to the target maximum transmit power, or, it is possible to prioritize ensuring that the transmit power of MR or LR remains unchanged, and only reduce the transmit power of the other communication module so that the total transmit power of the first device is not less than or equal to the target maximum transmit power.
- the relevant parameters of the maximum transmit power of at least one of the above-mentioned MR and LR can be based on RRC or other signaling indications.
- a main communication module i.e., a first communication module
- an extremely low power consumption communication module i.e., a second communication module
- power control of the two communication modules on the first device can be performed based on the first information, so that the first target transmission power of the first signal sent by the main communication module on the first device and the second target transmission power of the second signal sent by the extremely low power consumption communication module on the first device are more flexible, thereby improving the communication performance of the first device.
- the embodiment of the present application also provides another transmission power control method, and the execution subject of the another transmission power control method is a second device.
- the another transmission power control method executed by the second device includes the following steps:
- Step 121 The second device sends first information to the first device, where the first device includes a first communication module and a second communication module, and the second communication module is an extremely low power consumption communication module; the first information is used to determine a first target transmission power of the first communication module for a first signal and a second target transmission power of the second communication module for a second signal.
- the second device may be a device for configuring or indicating the first information to the first device, for example, a network side device.
- the network side device may be an access network device or a core network device, wherein, when the fourth device includes a core network device, the target receiving power and other demand information may be obtained by using an application server in the core network, or the target transmitting power may be calculated by using a calculation function in the core network.
- first information first device, first parameter, first communication module, second communication module, first signal, first target transmission power, second signal, second target transmission power
- first device, first parameter, first communication module, second communication module, first signal, first target transmission power, second signal, second target transmission power have the same meaning and function as the first information, first device, first parameter, first communication module, second communication module, first signal, first target transmission power, second signal, and second target transmission power in the first device side method embodiment, and will not be repeated here.
- the embodiments of the present application correspond to the first device side method embodiment, wherein the first device side method embodiment is used to determine the target transmission power of two communication modules on the first device, and the second device side method embodiment can control the transmission power of the two communication modules on the first device based on the first information control.
- the first information includes at least one of the following:
- a first target transmit power and a first adjustment amount of a first communication module wherein the second target transmit power is determined based on the first target transmit power and the first adjustment amount
- the first target transmit power is determined based on the second target transmit power and the third adjustment amount
- the first parameter being determined based on the second parameter and the fourth adjustment amount
- the first parameter and the second parameter are The first parameter and the second parameter;
- the first parameter includes a parameter used to determine the first target transmit power; and the second parameter includes a parameter used to determine the second target transmit power.
- the first parameter includes at least one or a combination of at least two of the following parameters corresponding to the first communication module:
- a first target received power a first path loss, a first maximum transmit power, a type of the first signal, a time length of a symbol in the first signal, a frequency domain width of a symbol in the first signal, an offset value of a first closed-loop power control, a number of RBs of an occupied bandwidth B of the first signal, a number of subcarriers contained in each RB of the first signal, an average number of bits carried by each symbol in the first signal, and a first partial path loss compensation factor;
- the first path loss is a path loss between the first device and a third device, and the third device is a receiving end device of the first signal;
- the second parameter includes at least one or a combination of at least two of the following parameters corresponding to the second communication module:
- second target received power, second path loss, second maximum transmit power type of the second signal, time length of a symbol in the second signal, frequency domain width of a symbol in the second signal, bias value of the second closed-loop power control, number of RBs of bandwidth B occupied by the second signal, number of subcarriers contained in each RB of the second signal, number of bits carried on average by each symbol in the second signal, second partial path loss compensation factor;
- the second path loss is the path loss between the first device and a fourth device, and the fourth device is a receiving end device of the second signal.
- the method further comprises:
- the second device sends first association information to the first device
- the first association information is used to indicate an association relationship between the first target transmit power, the first adjustment amount, and the second target transmit power
- the first association information is used to indicate an association relationship between the first parameter, the second adjustment amount and the second parameter
- the first association information is used to indicate an association relationship between the second target transmit power, the third adjustment amount and the first target transmit power
- the first association information is used to indicate an association relationship among the second parameter, the fourth adjustment amount, and the first target transmit power.
- the second adjustment amount includes a first power adjustment amount, and the first power adjustment amount is used to indicate the power adjustment caused by converting the signal transmission bandwidth of the first communication module into the signal transmission bandwidth of the second communication module; or,
- the fourth adjustment amount includes a second power adjustment amount, where the second power adjustment amount is used to indicate a power adjustment caused by converting the signal transmission bandwidth of the second communication module to the signal transmission bandwidth of the first communication module.
- the second signal when the first signal is an orthogonal frequency division multiplexing (OFDM) signal, the second signal is a single carrier signal, and the second signal uses the bandwidth definition of OFDM to calculate the second target transmit power:
- OFDM orthogonal frequency division multiplexing
- the first power adjustment amount is:
- the second power adjustment amount is:
- the second signal when the first signal is an orthogonal frequency division multiplexing (OFDM) signal, the second signal is a single carrier signal, and the second signal uses a bandwidth definition of a single carrier to calculate the second target transmit power:
- OFDM orthogonal frequency division multiplexing
- the first power adjustment amount is:
- the second power adjustment amount is:
- the second device sending the first information to the first device includes:
- the second device sends first configuration information to the first device
- the second device sends a transmission power control TPC signaling to the first device
- the first configuration information is used to configure a first static power control parameter and a second static power control parameter;
- the TPC signaling indicates a first dynamic power control parameter and a second dynamic power control parameter;
- the first parameter includes the first static power control parameter and the first dynamic power control parameter;
- the second parameter includes the second static power control parameter and the second dynamic power control parameter.
- the target static power control parameter includes at least one of the following:
- a parameter set consisting of a target received power and a partial path loss compensation factor
- the target static power control parameter includes at least one of the first static power control parameter and the second static power control parameter.
- the target dynamic power control parameter includes at least one of the following:
- a first power offset value and a first scaling factor wherein a second power offset value is determined based on the first power offset value and the first scaling factor
- the first power offset value being determined based on the second power offset value and the second scaling factor
- a first identifier wherein the first identifier is associated with a first power offset value and a second power offset value
- the target power offset value is a power offset value of the first communication module or the second communication module
- the target dynamic power control parameter includes at least one of the first dynamic power control parameter and the second dynamic power control parameter; the first power offset value is the offset value of the first target transmit power; and the second power offset value is the offset value of the second target transmit power.
- the first target transmit power and the second target transmit power satisfy at least one of the following conditions:
- the first target transmit power is less than or equal to the first maximum transmit power
- the second target transmit power is less than or equal to the second maximum transmit power
- Second condition the sum of the first target transmit power and the second target transmit power is less than or equal to the target maximum transmit power, and the target maximum transmit power is the maximum total transmit power of the first communication module and the second communication module.
- the method further comprises:
- the second device sends second indication information to the first device, where the second indication information is used to indicate a transmission power allocation method of the first communication module and the second communication module.
- the second indication information is used to indicate any of the following:
- the target transmit power of the first communication module or the second communication module is preferentially reduced so that the sum of the first target transmit power and the second target transmit power is less than or equal to the target maximum transmit power.
- the steps executed by the second device correspond to the steps executed by the first device in the first device side method embodiment, and the two cooperate with each other to jointly realize the control of the uplink transmission power and path loss compensation of the two communication modules on the first device.
- the transmit power control method provided in the embodiment of the present application can be executed by a transmit power control device.
- the transmit power control device performing the transmit power control method is taken as an example to illustrate the transmit power control device provided in the embodiment of the present application.
- an embodiment of the present application further provides a transmission power control apparatus, which is applied to a first device.
- the transmission power control apparatus 1300 includes:
- a first acquisition module 1301 is used to acquire first information, wherein the first device includes a first communication module and a second communication module, and the second communication module is an extremely low power consumption communication module;
- the first determination module 1302 is used to determine the first target transmission power of the first communication module and the second target transmission power of the second communication module according to the first information; wherein the first target transmission power is used for the first communication module to send a first signal, and the second target transmission power is used for the second communication module to send a second signal.
- the first information includes at least one of the following:
- the second target transmit power is determined based on the first target transmit power and the first adjustment amount
- the first target transmit power is determined based on the second target transmit power and the third adjustment amount
- the first parameter and the second parameter are The first parameter and the second parameter;
- the first parameter includes a parameter used to determine the first target transmit power; and the second parameter includes a parameter used to determine the second target transmit power.
- the first parameter includes at least one or a combination of at least two of the following parameters corresponding to the first communication module:
- a first target received power a first path loss, a first maximum transmit power, a type of the first signal, a bias value of a first closed-loop power control, the number of RBs of an occupied bandwidth of the first signal, the number of subcarriers contained in each RB of the first signal, the average number of bits carried by each resource element RE in the first signal, and a first partial path loss compensation factor;
- the first path loss is a path loss between the first device and a third device, and the third device is a receiving end device of the first signal;
- the second parameter includes at least one or a combination of at least two of the following parameters corresponding to the second communication module:
- second target received power, second path loss, second maximum transmit power type of the second signal, time length of a symbol in the second signal, frequency domain width of a symbol in the second signal, bias value of the second closed-loop power control, number of RBs of the occupied bandwidth of the second signal, number of subcarriers contained in each RB of the second signal, number of bits carried on average per symbol in the second signal, second partial path loss compensation factor;
- the second path loss is the path loss between the first device and a fourth device, and the fourth device is a receiving end device of the second signal.
- the transmit power control apparatus 1300 further includes:
- a second acquisition module used to acquire first associated information
- the first association information is used to indicate an association relationship between the first target transmit power, the first adjustment amount, and the second target transmit power
- the first association information is used to indicate an association relationship between the first parameter, the second adjustment amount and the second parameter
- the first association information is used to indicate an association relationship between the second target transmit power, the third adjustment amount and the first target transmit power
- the first association information is used to indicate an association relationship among the second parameter, the fourth adjustment amount, and the first target transmit power.
- the transmit power control apparatus 1300 further includes:
- a path loss measurement module configured to measure the reference signal from the fourth device using the first communication module to obtain a third path loss
- a second determination module configured to determine a path loss offset value according to a difference between the reference signal and the second signal
- the third determination module is used to determine the second path loss according to the third path loss and the path loss offset value.
- the second adjustment amount includes a first power adjustment amount, and the first power adjustment amount is used to indicate the power adjustment caused by converting the signal transmission bandwidth of the first communication module into the signal transmission bandwidth of the second communication module; or,
- the fourth adjustment amount includes a second power adjustment amount, where the second power adjustment amount is used to indicate a power adjustment caused by converting the signal transmission bandwidth of the second communication module to the signal transmission bandwidth of the first communication module.
- the second signal when the first signal is an orthogonal frequency division multiplexing (OFDM) signal, the second signal is a single carrier signal, and the second signal uses the bandwidth definition of OFDM to calculate the second target transmit power:
- OFDM orthogonal frequency division multiplexing
- the first power adjustment amount is:
- the second power adjustment amount is:
- the second signal when the first signal is an orthogonal frequency division multiplexing (OFDM) signal, the second signal is a single carrier signal, and the second signal uses a bandwidth definition of a single carrier to calculate the second target transmit power:
- OFDM orthogonal frequency division multiplexing
- the first power adjustment amount is:
- the second power adjustment amount is:
- the second adjustment amount includes a third power adjustment amount, and the third power adjustment amount is used to indicate the power adjustment caused by converting the signal transmission format of the first communication module into the signal transmission format of the second communication module; or,
- the fourth adjustment amount includes a fourth power adjustment amount, and the fourth power adjustment amount is used to indicate the power adjustment caused by converting the signal transmission format of the second communication module into the signal transmission format of the first communication module.
- the third power adjustment amount includes: ⁇ LR,TF ⁇ MR,TF ;
- the fourth power adjustment amount includes: ⁇ MR,TF ⁇ LR,TF ;
- ⁇ MR,TF represents the transmission power required by the first communication module in each resource element RE
- ⁇ LR,TF represents the transmission power required by the second communication module in each RE
- the second signal is a single carrier signal, and the second signal uses the bandwidth definition of OFDM to calculate the second target transmission power:
- the second signal is a single carrier signal, and the second signal uses a bandwidth definition of a single carrier to calculate the second target transmit power:
- ⁇ ' represents the average number of bits carried by each symbol in the second signal; Indicates the number of OFDM subcarriers contained in 1 RB; represents the number of RBs of the occupied bandwidth B of the second signal; ⁇ ' 0 and ⁇ ' 1 are two offset values; Ts represents the time length of a single carrier symbol; B represents the frequency domain width of a single carrier symbol; ⁇ '2 and ⁇ '3 are two offset values.
- the first acquisition module 1301 when the first information includes the first parameter and the second parameter, the first acquisition module 1301 includes:
- a first acquiring unit configured to acquire first configuration information
- a first receiving unit configured to receive a transmission power control TPC signaling
- the first configuration information is used to configure a first static power control parameter and a second static power control parameter;
- the TPC signaling indicates a first dynamic power control parameter and a second dynamic power control parameter;
- the first parameter includes the first static power control parameter and the first dynamic power control parameter;
- the second parameter includes the second static power control parameter and the second dynamic power control parameter.
- the target static power control parameter includes at least one of the following:
- a parameter set consisting of a target received power and a partial path loss compensation factor
- the target static power control parameter includes at least one of the first static power control parameter and the second static power control parameter.
- the target dynamic power control parameter includes at least one of the following:
- a first power offset value and a first scaling factor wherein a second power offset value is determined based on the first power offset value and the first scaling factor
- the first power offset value being determined based on the second power offset value and the second scaling factor
- a first identifier wherein the first identifier is associated with a first power offset value and a second power offset value
- the target power offset value is a power offset value of the first communication module or the second communication module
- the target dynamic power control parameter includes at least one of the first dynamic power control parameter and the second dynamic power control parameter; the first power offset value is the offset value of the first target transmit power; and the second power offset value is the offset value of the second target transmit power.
- the first target transmit power and the second target transmit power satisfy at least one of the following conditions:
- the first target transmit power is less than or equal to the first maximum transmit power
- the second target transmit power is less than or equal to the second maximum transmit power
- Second condition the sum of the first target transmit power and the second target transmit power is less than or equal to the target maximum transmit power, and the target maximum transmit power is the maximum total transmit power of the first communication module and the second communication module.
- the transmit power control apparatus 1300 when the first target transmit power and the second target transmit power do not satisfy the second condition, the transmit power control apparatus 1300 further includes:
- a third acquisition module used to acquire second indication information, where the second indication information is used to indicate a transmission power allocation method of the first communication module and the second communication module;
- the fourth determination module is used to update the first target transmit power and the second target transmit power according to the second indication information and the target maximum transmit power, wherein the updated first target transmit power and the second target transmit power meet the second condition.
- the second indication information is used to indicate any of the following:
- the target transmit power of the first communication module or the second communication module is preferentially reduced so that the sum of the first target transmit power and the second target transmit power is less than or equal to the target maximum transmit power.
- the transmission power control device 1300 provided in the embodiment of the present application can implement each process in the first device side method embodiment and achieve the same technical effect. To avoid repetition, it will not be repeated here.
- an embodiment of the present application further provides another transmission power control apparatus 1400 , which is applied to a second device.
- the transmission power control device 1400 includes:
- the first sending module 1401 is used to send first information to a first device, where the first device includes a first communication module and a second communication module, and the second communication module is an extremely low power consumption communication module; the first information is used to determine a first target transmission power of the first communication module for a first signal and a second target transmission power of the second communication module for a second signal.
- the first information includes at least one of the following:
- a first target transmit power and a first adjustment amount of a first communication module wherein the second target transmit power is determined based on the first target transmit power and the first adjustment amount
- the first target transmit power is determined based on the second target transmit power and the third adjustment amount
- the first parameter being determined based on the second parameter and the fourth adjustment amount
- the first parameter and the second parameter are The first parameter and the second parameter;
- the first parameter includes a parameter used to determine the first target transmit power; and the second parameter includes a parameter used to determine the second target transmit power.
- the first parameter includes at least one or a combination of at least two of the following parameters corresponding to the first communication module:
- a first target received power a first path loss, a first maximum transmit power, a type of the first signal, a time length of a symbol in the first signal, a frequency domain width of a symbol in the first signal, an offset value of a first closed-loop power control, a number of RBs of an occupied bandwidth B of the first signal, a number of subcarriers contained in each RB of the first signal, an average number of bits carried by each symbol in the first signal, and a first partial path loss compensation factor;
- the first path loss is a path loss between the first device and a third device, and the third device is a receiving end device of the first signal;
- the second parameter includes at least one or a combination of at least two of the following parameters corresponding to the second communication module:
- second target received power, second path loss, second maximum transmit power type of the second signal, time length of a symbol in the second signal, frequency domain width of a symbol in the second signal, bias value of the second closed-loop power control, number of RBs of bandwidth B occupied by the second signal, number of subcarriers contained in each RB of the second signal, number of bits carried on average by each symbol in the second signal, second partial path loss compensation factor;
- the second path loss is the path loss between the first device and a fourth device, and the fourth device is a receiving end device of the second signal.
- the transmit power control apparatus 1400 further includes:
- a second sending module configured to send first association information to the first device
- the first association information is used to indicate an association relationship between the first target transmit power, the first adjustment amount, and the second target transmit power
- the first association information is used to indicate an association relationship between the first parameter, the second adjustment amount and the second parameter
- the first association information is used to indicate an association relationship between the second target transmit power, the third adjustment amount and the first target transmit power
- the first association information is used to indicate an association relationship among the second parameter, the fourth adjustment amount, and the first target transmit power.
- the second adjustment amount includes a first power adjustment amount, and the first power adjustment amount is used to indicate the power adjustment caused by converting the signal transmission bandwidth of the first communication module into the signal transmission bandwidth of the second communication module; or,
- the fourth adjustment amount includes a second power adjustment amount, where the second power adjustment amount is used to indicate a power adjustment caused by converting the signal transmission bandwidth of the second communication module to the signal transmission bandwidth of the first communication module.
- the second signal when the first signal is an orthogonal frequency division multiplexing (OFDM) signal, the second signal is a single carrier signal, and the second signal uses the bandwidth definition of OFDM to calculate the second target transmit power:
- OFDM orthogonal frequency division multiplexing
- the first power adjustment amount is:
- the second power adjustment amount is:
- the second signal when the first signal is an orthogonal frequency division multiplexing (OFDM) signal, the second signal is a single carrier signal, and the second signal uses a bandwidth definition of a single carrier to calculate the second target transmit power:
- OFDM orthogonal frequency division multiplexing
- the first power adjustment amount is:
- the second power adjustment amount is:
- the first sending module 1401 when the first information includes the first parameter and the second parameter, the first sending module 1401 includes:
- a first sending unit configured to send first configuration information to a first device
- a second sending unit configured to send a transmission power control TPC signaling to the first device
- the first configuration information is used to configure a first static power control parameter and a second static power control parameter;
- the TPC signaling indicates a first dynamic power control parameter and a second dynamic power control parameter;
- the first parameter includes the first static power control parameter and the first dynamic power control parameter;
- the second parameter includes the second static power control parameter and the second dynamic power control parameter.
- the target static power control parameter includes at least one of the following:
- a parameter set consisting of a target received power and a partial path loss compensation factor
- the target static power control parameter includes at least one of the first static power control parameter and the second static power control parameter.
- the target dynamic power control parameter includes at least one of the following:
- a first power offset value and a first scaling factor wherein a second power offset value is determined based on the first power offset value and the first scaling factor
- the first power offset value being determined based on the second power offset value and the second scaling factor
- a first identifier wherein the first identifier is associated with a first power offset value and a second power offset value
- the target power offset value is a power offset value of the first communication module or the second communication module
- the target dynamic power control parameter includes at least one of the first dynamic power control parameter and the second dynamic power control parameter; the first power offset value is the offset value of the first target transmit power; and the second power offset value is the offset value of the second target transmit power.
- the first target transmit power and the second target transmit power satisfy at least one of the following conditions:
- the first target transmit power is less than or equal to the first maximum transmit power
- the second target transmit power is less than or equal to the second maximum transmit power
- Second condition the sum of the first target transmit power and the second target transmit power is less than or equal to the target maximum transmit power, and the target maximum transmit power is the maximum total transmit power of the first communication module and the second communication module.
- the transmit power control apparatus 1400 further includes:
- the third sending module is used to send second indication information to the first device, where the second indication information is used to indicate a sending power allocation method of the first communication module and the second communication module.
- the second indication information is used to indicate any of the following:
- the target transmit power of the first communication module or the second communication module is preferentially reduced so that the sum of the first target transmit power and the second target transmit power is less than or equal to the target maximum transmit power.
- the transmission power control device 1400 provided in the embodiment of the present application can implement each process in the second device side method embodiment and achieve the same technical effect. To avoid repetition, it will not be repeated here.
- an embodiment of the present application also provides a communication device 1500, including a processor 1501 and a memory 1502, and the memory 1502 stores programs or instructions that can be executed on the processor 1501.
- the communication device 1500 acts as a first device
- the program or instruction is executed by the processor 1501 to implement the various steps of the aforementioned first device side method embodiment, and can achieve the same technical effect
- the communication device 1500 acts as a second device
- the program or instruction is executed by the processor 1501 to implement the various steps of the aforementioned second device side method embodiment, and can achieve the same technical effect.
- the embodiment of the present application also provides a communication device, including a processor and a communication interface;
- the processor is used to: obtain first information, the first device includes a first communication module and a second communication module, the second communication module is an extremely low power consumption communication module; according to the first information, determine a first target transmission power of the first communication module and a second target transmission power of the second communication module; wherein the first target transmission power is used for the first communication module to send a first signal, and the second target transmission power is used for the second communication module to send a second signal.
- the communication interface is used to send first information to the first device, the first device includes a first communication module and a second communication module, the second communication module is an extremely low power consumption communication module; the first information is used to determine a first target transmission power of the first communication module for a first signal and a second target transmission power of the second communication module for a second signal.
- This communication device embodiment corresponds to the aforementioned transmission power control method embodiments on the first device side and the second device side.
- Each implementation process and implementation method of the aforementioned method embodiments can be applied to this communication device embodiment and can achieve the same technical effect.
- FIG16 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of the present application.
- the terminal 1600 includes but is not limited to: a radio frequency unit 1601, a network module 1602, an audio output unit 1603, an input unit 1604, a sensor 1605, a display unit 1606, a user input unit 1607, an interface unit 1608, a memory 1609 and at least some of the components of the processor 1610.
- the terminal 1600 may also include a power source (such as a battery) for supplying power to each component, and the power source may be logically connected to the processor 1610 through a power management system, so as to implement functions such as managing charging, discharging, and power consumption management through the power management system.
- a power source such as a battery
- the terminal structure shown in FIG16 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown, or combine certain components, or arrange components differently, which will not be described in detail here.
- the input unit 1604 may include a graphics processing unit (GPU) 16041 and a microphone 16042, and the graphics processor 16041 processes the image data of the static picture or video obtained by the image capture device (such as a camera) in the video capture mode or the image capture mode.
- the display unit 1606 may include a display panel 16061, and the display panel 16061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc.
- the user input unit 1607 includes a touch panel 16071 and at least one of other input devices 16072.
- the touch panel 16071 is also called a touch screen.
- the touch panel 16071 may include two parts: a touch detection device and a touch controller.
- Other input devices 16072 may include, but are not limited to, a physical keyboard, function keys (such as a volume control key, a switch key, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.
- the RF unit 1601 can transmit the data to the processor 1610 for processing; in addition, the RF unit 1601 can send uplink data to the network side device.
- the RF unit 1601 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.
- the memory 1609 can be used to store software programs or instructions and various data.
- the memory 1609 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc.
- the memory 1609 may include a volatile memory or a non-volatile memory.
- the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory.
- the volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM) and a direct memory bus random access memory (DRRAM).
- RAM random access memory
- SRAM static random access memory
- DRAM dynamic random access memory
- SDRAM synchronous dynamic random access memory
- DDRSDRAM double data rate synchronous dynamic random access memory
- ESDRAM enhanced synchronous dynamic random access memory
- SLDRAM synchronous link dynamic random access memory
- DRRAM direct memory bus random access memory
- the processor 1610 may include one or more processing units; optionally, the processor 1610 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 1610.
- the terminal 1600 is used as a first device, and the processor 1610 is used to obtain first information.
- the first device includes a first communication module and a second communication module, and the second communication module is an extremely low power consumption communication module;
- Processor 1610 is also used to determine a first target transmission power of the first communication module and a second target transmission power of the second communication module based on the first information; wherein the first target transmission power is used for the first communication module to send a first signal, and the second target transmission power is used for the second communication module to send a second signal.
- the first information includes at least one of the following:
- the second target transmit power is determined based on the first target transmit power and the first adjustment amount
- the first target transmit power is determined based on the second target transmit power and the third adjustment amount
- the first parameter and the second parameter are The first parameter and the second parameter;
- the first parameter includes a parameter used to determine the first target transmit power; and the second parameter includes a parameter used to determine the second target transmit power.
- the first parameter includes at least one or a combination of at least two of the following parameters corresponding to the first communication module:
- a first target received power a first path loss, a first maximum transmit power, a type of the first signal, a bias value of a first closed-loop power control, the number of RBs of an occupied bandwidth of the first signal, the number of subcarriers contained in each RB of the first signal, the average number of bits carried by each resource element RE in the first signal, and a first partial path loss compensation factor;
- the first path loss is a path loss between the first device and a third device, and the third device is a receiving end device of the first signal;
- the second parameter includes at least one or a combination of at least two of the following parameters corresponding to the second communication module:
- second target received power, second path loss, second maximum transmit power type of the second signal, time length of a symbol in the second signal, frequency domain width of a symbol in the second signal, bias value of the second closed-loop power control, number of RBs of the occupied bandwidth of the second signal, number of subcarriers contained in each RB of the second signal, number of bits carried on average per symbol in the second signal, second partial path loss compensation factor;
- the second path loss is the path loss between the first device and a fourth device, and the fourth device is a receiving end device of the second signal.
- the radio frequency unit 1601 is configured to:
- the first association information is used to indicate an association relationship between the first target transmit power, the first adjustment amount, and the second target transmit power
- the first association information is used to indicate an association relationship between the first parameter, the second adjustment amount and the second parameter
- the first association information is used to indicate an association relationship between the second target transmit power, the third adjustment amount and the first target transmit power
- the first association information is used to indicate an association relationship among the second parameter, the fourth adjustment amount, and the first target transmit power.
- the radio frequency unit 1601 is further configured to measure, using the first communication module, a reference signal from the fourth device to obtain a third path loss;
- the processor 1610 is further configured to determine a path loss offset value according to a difference between the reference signal and the second signal;
- Processor 1610 is further configured to determine the second path loss according to the third path loss and the path loss offset value.
- the second adjustment amount includes a first power adjustment amount, and the first power adjustment amount is used to indicate the power adjustment caused by converting the signal transmission bandwidth of the first communication module into the signal transmission bandwidth of the second communication module; or,
- the fourth adjustment amount includes a second power adjustment amount, where the second power adjustment amount is used to indicate a power adjustment caused by converting the signal transmission bandwidth of the second communication module to the signal transmission bandwidth of the first communication module.
- the second signal when the first signal is an orthogonal frequency division multiplexing (OFDM) signal, the second signal is a single carrier signal, and the second signal uses the bandwidth definition of OFDM to calculate the second target transmit power:
- OFDM orthogonal frequency division multiplexing
- the first power adjustment amount is:
- the second power adjustment amount is:
- the second signal when the first signal is an orthogonal frequency division multiplexing (OFDM) signal, the second signal is a single carrier signal, and the second signal uses a bandwidth definition of a single carrier to calculate the second target transmit power:
- OFDM orthogonal frequency division multiplexing
- the first power adjustment amount is:
- the second power adjustment amount is:
- the second adjustment amount includes a third power adjustment amount, and the third power adjustment amount is used to indicate the power adjustment caused by converting the signal transmission format of the first communication module into the signal transmission format of the second communication module; or,
- the fourth adjustment amount includes a fourth power adjustment amount, and the fourth power adjustment amount is used to indicate the power adjustment caused by converting the signal transmission format of the second communication module into the signal transmission format of the first communication module.
- the third power adjustment amount includes: ⁇ LR,TF ⁇ MR,TF ;
- the fourth power adjustment amount includes: ⁇ MR,TF ⁇ LR,TF ;
- ⁇ MR,TF represents the transmission power required by the first communication module in each resource element RE
- ⁇ LR,TF represents the transmission power required by the second communication module in each RE
- the second signal is a single carrier signal, and the second signal uses the bandwidth definition of OFDM to calculate the second target transmission power:
- the second signal is a single carrier signal, and the second signal uses a bandwidth definition of a single carrier to calculate the second target transmit power:
- ⁇ ' represents the average number of bits carried by each symbol in the second signal; Indicates the number of OFDM subcarriers contained in 1 RB; represents the number of RBs of the occupied bandwidth B of the second signal; ⁇ ' 0 and ⁇ ' 1 are two offset values; Ts represents the time length of a single carrier symbol; B represents the frequency domain width of a single carrier symbol; ⁇ '2 and ⁇ '3 are two offset values.
- the acquiring of the first information performed by the processor 1610 includes:
- the first configuration information is used to configure a first static power control parameter and a second static power control parameter;
- the TPC signaling indicates a first dynamic power control parameter and a second dynamic power control parameter;
- the first parameter includes the first static power control parameter and the first dynamic power control parameter;
- the second parameter includes the second static power control parameter and the second dynamic power control parameter.
- the target static power control parameter includes at least one of the following:
- a parameter set consisting of a target received power and a partial path loss compensation factor
- the target static power control parameter includes at least one of the first static power control parameter and the second static power control parameter.
- the target dynamic power control parameter includes at least one of the following:
- a first power offset value and a first scaling factor wherein a second power offset value is determined based on the first power offset value and the first scaling factor
- the first power offset value being determined based on the second power offset value and the second scaling factor
- a first identifier wherein the first identifier is associated with a first power offset value and a second power offset value
- the target power offset value is a power offset value of the first communication module or the second communication module
- the target dynamic power control parameter includes at least one of the first dynamic power control parameter and the second dynamic power control parameter; the first power offset value is the offset value of the first target transmit power; and the second power offset value is the offset value of the second target transmit power.
- the first target transmit power and the second target transmit power satisfy at least one of the following conditions:
- the first target transmit power is less than or equal to the first maximum transmit power
- the second target transmit power is less than or equal to the second maximum transmit power
- Second condition the sum of the first target transmit power and the second target transmit power is less than or equal to the target maximum transmit power, and the target maximum transmit power is the maximum total transmit power of the first communication module and the second communication module.
- the radio frequency unit 1601 is further used to obtain second indication information, where the second indication information is used to indicate a transmission power allocation method of the first communication module and the second communication module;
- Processor 1610 is further used to update the first target transmit power and the second target transmit power according to the second indication information and the target maximum transmit power, wherein the updated first target transmit power and the second target transmit power meet the second condition.
- the second indication information is used to indicate any of the following:
- the target transmit power of the first communication module or the second communication module is preferentially reduced so that the sum of the first target transmit power and the second target transmit power is less than or equal to the target maximum transmit power.
- the embodiment of the present application also provides a network side device, including a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the steps of the method embodiment of the first device side or the second device side.
- the network side device embodiment corresponds to the method embodiment of the first device side or the second device side, and each implementation process and implementation method of the above method embodiment can be applied to the network side device embodiment and can achieve the same technical effect.
- the network side device 1700 includes: the network side device 17000 includes: an antenna 1701, a radio frequency device 1702, a baseband device 1703, a processor 1704, and a memory 1705.
- the antenna 1701 is connected to the radio frequency device 1702.
- the radio frequency device 1702 receives information through the antenna 1701 and sends the received information to the baseband device 1703 for processing.
- the baseband device 1703 processes the information to be sent and sends it to the radio frequency device 1702, and the radio frequency device 1702 processes the received information and sends it out through the antenna 1701.
- the method executed by the network-side device in the above embodiment may be implemented in the baseband device 1703, which includes a baseband processor.
- the baseband device 1703 may include, for example, at least one baseband board, on which multiple chips are arranged, as shown in Figure 17, one of which is, for example, a baseband processor, which is connected to the memory 1705 through a bus interface to call the program in the memory 1705 and execute the network device operations shown in the above method embodiment.
- the network side device may also include a network interface 1706, which is, for example, a Common Public Radio Interface (CPRI).
- CPRI Common Public Radio Interface
- the network side device 1700 of the embodiment of the present application also includes: instructions or programs stored in the memory 1705 and executable on the processor 1704.
- the processor 1704 calls the instructions or programs in the memory 1705 to execute the method executed by each module shown in Figure 13 or Figure 14, and achieves the same technical effect. To avoid repetition, it will not be repeated here.
- An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored.
- a program or instruction is stored.
- each process of the aforementioned first device side method embodiment or the second device side method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.
- the processor is the processor in the terminal described in the above embodiment.
- the readable storage medium includes a computer readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk.
- the readable storage medium may be a non-transient readable storage medium.
- An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the aforementioned first device side method embodiment or the second device side method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.
- the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.
- An embodiment of the present application further provides a computer program/program product, which is stored in a storage medium.
- the computer program/program product is executed by at least one processor to implement the various processes of the aforementioned first device-side method embodiment or the second device-side method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.
- An embodiment of the present application further provides a wireless communication system, including a first device and a second device, wherein the first device is used to execute the steps of the aforementioned first device side method embodiment, and the second device is used to execute the steps of the aforementioned second device side method embodiment, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.
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Abstract
一种发射功率控制方法、装置及通信设备,属于通信技术领域,其中,方法包括:第一设备获取第一信息,第一设备包括第一通信模块和第二通信模块,第二通信模块为极低功耗通信模块;第一设备根据第一信息,确定第一通信模块的第一目标发射功率和第二通信模块的第二目标发射功率;其中,第一目标发射功率用于第一通信模块发送第一信号,第二目标发射功率用于第二通信模块发送第二信号。
Description
相关申请的交叉引用
本申请主张在2023年12月8日在中国提交的中国专利申请No.202311683004.X的优先权,其全部内容通过引用包含于此。
本申请属于通信技术领域,具体涉及一种发射功率控制方法、装置及通信设备。
在相关技术中的功率控制方法是基于正交频分复用(Orthogonal Frequency Division Multiplex,OFDM)或离散傅立叶变换扩频OFDM(Discrete Fourier Transform–Spread OFDM,DFT-S-OFDM)这类多载波信号,且用户设备(User Equipment,UE)与基站或集成接入与回传(Integrated Access and Backhaul,IAB)节点直接连接的拓扑结构的假设下设计的。
在反向散射通信(Backscatter Communication,BSC)中,环境物联网(Ambient Internet of Things,AIoT)设备可能会采用启闭键控(On-Off Keying,OOK)、振幅键控(Amplitude Shift Keying,ASK)、频移键控(Frequency-Shift Keying,FSK)等单载波信号,且BSC中的连接拓扑结构也不局限于直接连接的简单拓扑结构,此外,有一些设备同时具备传统的主通信模块和AIoT类的极低功耗通信模块。
相关技术中的功率控制方法无法应用于同时具备主通信模块和极低功耗通信模块的通信设备的功率控制,此时,因缺少对同时具备主通信模块和极低功耗通信模块的通信设备的功率控制,会限制该通信设备的通信性能。
本申请实施例提供一种发射功率控制方法、装置及通信设备,能够对同时具备主通信模块和极低功耗通信模块的通信设备中由主通信模块发送的第一信号以及由低功耗通信模块发送的第二信号进行功率控制,提升了该通信设备的通信性能。
第一方面,提供了一种发射功率控制方法,该方法包括:
第一设备获取第一信息,所述第一设备包括第一通信模块和第二通信模块,所述第二通信模块为极低功耗通信模块;
所述第一设备根据所述第一信息,确定所述第一通信模块的第一目标发射功率和所述第二通信模块的第二目标发射功率;其中,所述第一目标发射功率用于所述第一通信模块发送第一信号,所述第二目标发射功率用于所述第二通信模块发送第二信号。
第二方面,提供了一种发射功率控制装置,应用于第一节点,该装置包括:
第一获取模块,用于获取第一信息,所述第一设备包括第一通信模块和第二通信模块,所述第二通信模块为极低功耗通信模块;
第一确定模块,用于根据所述第一信息,确定所述第一通信模块的第一目标发射功率和所述第二通信模块的第二目标发射功率;其中,所述第一目标发射功率用于所述第一通信模块发送第一信号,所述第二目标发射功率用于所述第二通信模块发送第二信号。
第三方面,提供了一种发射功率控制方法,该方法包括:
第二设备向第一设备发送第一信息,所述第一设备包括第一通信模块和第二通信模块,所述第二通信模块为极低功耗通信模块;所述第一信息用于确定所述第一通信模块对第一信号的第一目标发射功率和所述第二通信模块对第二信号的第二目标发射功率。
第四方面,提供了一种发射功率控制装置,应用于第二节点,该装置包括:
第一发送模块,用于向第一设备发送第一信息,所述第一设备包括第一通信模块和第二通信模块,所述第二通信模块为极低功耗通信模块;所述第一信息用于确定所述第一通信模块对第一信号的第一目标发射功率和所述第二通信模块对第二信号的第二目标发射功率。
第五方面,提供了一种通信设备,该通信设备包括处理器和存储器,所述存储器存储可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如第一方面或第三方面所述的方法的步骤。
第六方面,提供了一种通信设备,包括处理器及通信接口;
其中,在所述通信设备为第一设备的情况下,所述通信接口或所述处理器用于获取第一信息,所述第一设备包括第一通信模块和第二通信模块,所述第二通信模块为极低功耗通信模块;所述处理器还用于根据所述第一信息,确定所述第一通信模块的第一目标发射功率和所述第二通信模块的第二目标发射功率;其中,所述第一目标发射功率用于所述第一通信模块发送第一信号,所述第二目标发射功率用于所述第二通信模块发送第二信号;
或者,
在所述通信设备为第二设备的情况下,所述通信接口用于向第一设备发送第一信息,所述第一设备包括第一通信模块和第二通信模块,所述第二通信模块为极低功耗通信模块;所述第一信息用于确定所述第一通信模块对第一信号的第一目标发射功率和所述第二通信模块对第二信号的第二目标发射功率。
第七方面,提供了一种无线通信系统,包括第一设备和第二设备,其中,所述第一设备用于执行如第一方面所述的方法的步骤,所述第二设备用于执行如第三方面所述方法的步骤。
第八方面,提供了一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如第一方面或第三方面所述的方法的步骤。
第九方面,提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现如第一方面或第三方面所述的方法。
第十方面,提供了一种计算机程序/程序产品,所述计算机程序/程序产品被存储在存储介质中,所述计算机程序/程序产品被至少一个处理器执行以实现如第一方面或第三方面所述的方法的步骤。
在本申请实施例中,对于同时具有主通信模块(即第一通信模块)和极低功耗通信模块(即第二通信模块)的第一设备,可以基于第一信息对第一设备上的两个通信模块进行功率控制,使得第一设备上基于主通信模块发送的第一信号的第一目标发射功率和第一设备上基于极低功耗通信模块发送的第二信号的第二目标发射功率更加灵活,提升了第一设备的通信性能。
图1是本申请实施例能够应用的一种无线通信系统的结构示意图;
图2是一种反向散射通信系统的示意图;
图3是一种反向散射通信系统中的信号调制的示意图;
图4是一种基于OFDM架构的多载波OOK信号的生成框架示意图;
图5是一种偏移正交相移键控(offset-Quadrature Phase Shift Keying,O-QPSK)发送和扩展序列的示意图;
图6是一种差分二进制相位键控(Differential Binary Phase Shift Keying,DBPSK)调制和扩展序列的示意图;
图7是一种最小频移键控(Minimum Shift Keying,MSK)调制框图;
图8是一种高斯最小频移键控(Gaussian Filtered Minimum Shift Keying,GMSK)信号调制原理图;
图9a是一种AIoT设备的连接拓扑1的示意图;
图9b是一种AIoT设备的连接拓扑2的示意图;
图9c是一种AIoT设备的连接拓扑3的示意图之一;
图9d是一种AIoT设备的连接拓扑3的示意图之二;
图9e是一种AIoT设备的连接拓扑4的示意图;
图10是具备主通信模块和极低功耗通信模块的终端和网络侧设备之间的信息交互示意图;
图11是本申请实施例提供的一种发射功率控制方法的流程图之一;
图12是本申请实施例提供的一种发射功率控制方法的流程图之二;
图13是本申请实施例提供的一种发射功率控制装置的结构示意图之一;
图14是本申请实施例提供的一种发射功率控制装置的结构示意图之二;
图15是本申请实施例提供的一种通信设备的结构示意图;
图16是本申请实施例提供的一种终端的结构示意图;
图17是本申请实施例提供的一种网络侧设备的结构示意图。
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员所获得的所有其他实施例,都属于本申请保护的范围。
本申请的术语“第一”、“第二”等是用于区别类似的对象,而不用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换,以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施,且“第一”、“第二”所区别的对象通常为一类,并不限定对象的个数,例如第一对象可以是一个,也可以是多个。此外,本申请中的“或”表示所连接对象的至少其中之一。例如“A或B”涵盖三种方案,即,方案一:包括A且不包括B;方案二:包括B且不包括A;方案三:既包括A又包括B。字符“/”一般表示前后关联对象是一种“或”的关系。
本申请的术语“指示”既可以是一个直接的指示(或者说显式的指示),也可以是一个间接的指示(或者说隐含的指示)。其中,直接的指示可以理解为,发送方在发送的指示中明确告知了接收方具体的信息、需要执行的操作或请求结果等内容;间接的指示可以理解为,接收方根据发送方发送的指示确定对应的信息,或者进行判断并根据判断结果确定需要执行的操作或请求结果等。
值得指出的是,本申请实施例所描述的技术不限于长期演进型(Long Term Evolution,LTE)/LTE的演进(LTE-Advanced,LTE-A)系统,还可用于其他无线通信系统,诸如码分多址(Code Division Multiple Access,CDMA)、时分多址(Time Division Multiple Access,TDMA)、频分多址(Frequency Division Multiple Access,FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access,OFDMA)、单载波频分多址(Single-carrier Frequency Division Multiple Access,SC-FDMA)或其他系统如6G系统以及6G演进系统,以及IEEE 802.11系统(即WiFi系统)、蓝牙系统、远距离无线电(Long Range Radio,LoRa)、Zigbee系统、无线光通信、反向散射通信、低功耗物联网系统等通信系统。本申请实施例中的术语“系统”和“网络”常被可互换地使用,所描述的技术既可用于以上提及的系统和无线电技术,也可用于其他系统和无线电技术。以下描述出于示例目的描述了新空口(New Radio,NR)系统,并且在以下大部分描述中使用NR术语,但是这些技术也可应用于NR系统以外的系统,如第6代(6th Generation,6G)通信系统。
图1示出本申请实施例可应用的一种无线通信系统的框图。无线通信系统包括终端11和网络侧设备12。其中,终端11可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)、笔记本电脑、个人数字助理(Personal Digital Assistant,PDA)、掌上电脑、上网本、超级移动个人计算机(Ultra-mobile Personal Computer,UMPC)、移动上网装置(Mobile Internet Device,MID)、增强现实(Augmented Reality,AR)、虚拟现实(Virtual Reality,VR)设备、机器人、可穿戴式设备(Wearable Device)、飞行器(flight vehicle)、车载设备(Vehicle User Equipment,VUE)、船载设备、行人终端(Pedestrian User Equipment,PUE)、智能家居(具有无线通信功能的家居设备,如冰箱、电视、洗衣机或者家具等)、游戏机、个人计算机(Personal Computer,PC)、柜员机或者自助机等终端侧设备。可穿戴式设备包括:智能手表、智能手环、智能耳机、智能眼镜、智能首饰(智能手镯、智能手链、智能戒指、智能项链、智能脚镯、智能脚链等)、智能腕带、智能服装等。其中,车载设备也可以称为车载终端、车载控制器、车载模块、车载部件、车载芯片或车载单元等。需要说明的是,在本申请实施例并不限定终端11的具体类型。网络侧设备12可以包括接入网设备或核心网设备,其中,接入网设备也可以称为无线接入网(Radio Access Network,RAN)设备、无线接入网功能或无线接入网单元。接入网设备可以包括基站、无线局域网(Wireless Local Area Network,WLAN)接入点(Access Point,AP)或无线保真(Wireless Fidelity,WiFi)节点等。其中,基站可被称为节点B(Node B,NB)、演进节点B(Evolved Node B,eNB)、下一代节点B(the next generation Node B,gNB)、新空口节点B(New Radio Node B,NR Node B)、接入点、中继站(Relay Base Station,RBS)、服务基站(Serving Base Station,SBS)、基收发机站(Base Transceiver Station,BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set,BSS)、扩展服务集(Extended Service Set,ESS)、家用B节点(home Node B,HNB)、家用演进型B节点(home evolved Node B)、发送接收点(Transmission Reception Point,TRP)或所属领域中其他某个合适的术语,只要达到相同的技术效果,所述基站不限于特定技术词汇,需要说明的是,在本申请实施例中仅以NR系统中的基站为例进行介绍,并不限定基站的具体类型。
核心网设备可以包含但不限于如下至少一项:核心网节点、核心网功能、移动管理实体(Mobility Management Entity,MME)、接入移动管理功能(Access and Mobility Management Function,AMF)、会话管理功能(Session Management Function,SMF)、用户平面功能(User Plane Function,UPF)、策略控制功能(Policy Control Function,PCF)、策略与计费规则功能单元(Policy and Charging Rules Function,PCRF)、边缘应用服务发现功能(Edge Application Server Discovery Function,EASDF)、统一数据管理(Unified Data Management,UDM)、统一数据仓储(Unified Data Repository,UDR)、归属用户服务器(Home Subscriber Server,HSS)、集中式网络配置(Centralized network configuration,CNC)、网络存储功能(Network Repository Function,NRF)、网络开放功能(Network Exposure Function,NEF)、本地NEF(Local NEF,或L-NEF)、绑定支持功能(Binding Support Function,BSF)、应用功能(Application Function,AF)等。需要说明的是,在本申请实施例中仅以NR系统中的核心网设备为例进行介绍,并不限定核心网设备的具体类型。需要说明的是,在本申请实施例中仅以NR系统中的核心网设备为例进行介绍,并不限定核心网设备的具体类型。
为了便于理解本申请实施例提供的发射功率控制方法,先对以下相关技术进行解释说明:
一、反向散射通信(Backscatter Communication,BSC)
反向散射通信是指反向散射通信设备利用其它设备或者环境中的射频信号进行信号调制来传输自己信息。
在一些实施方式中,反向散射通信设备可以包括以下至少一项:
设备A(Device A),指传统射频识别(Radio Frequency Identification,RFID)中的反向散射通信设备,一般是一个标签(Tag),属于无源IoT(Passive-IoT)设备;
设备B(DeviceB),指半无源(semi-passive)的IoT设备,这类设备的下行接收或者上行反射具备一定的放大能力;
设备C(DeviceC),指具备主动发送能力的设备(active device),这类IoT设备可以不依赖对入射信号的反射向阅读器(reader)发送信号。
以上反向散射通信设备的能量来源可以来源于环境,例如环境射频(Radio Frequency,RF)信号、热能、动能、风能等,也可以称为环境物联网设备(Ambient IoT device)。
在一些实施方式中,如图2所示,反向散射通信的一种简单实现方式为:tag需要发送‘1’时,tag对入射载波信号进行反射,tag需要发送‘0’时不进行反射。
在一些实施方式中,如图3所示,反向散射通信设备通过调节其内部阻抗来控制电路的反射系数Γ,从而改变入射信号的幅度、频率、相位等,实现信号的调制。其中,信号的反射系数Γ可以采用以下公式计算得到:
Γ=(Z_1-Z_0)/(Z_1+Z_0)=|Γ|e^(jθ_T);
其中,Z_0为天线特性阻抗,Z_1是负载阻抗。假设入射信号为S_in(t),则输出信号为S_out(t)=S_in(t)|Γ|e^(jθ_T)。因此,通过合理的控制反射系数可实现对应的幅度调制、频率调制或相位调制。
二、低功耗信号可能使用的调制方式
1)OOK
针对OOK调制方式,有2种生成方式。一种是基于OFDM架构的多载波(Multi Carrier OOK,MC-OOK)信号,另外一种是单载波OOK信号。
对于基于OFDM架构的多载波OOK信号,其设计思路是为了不改变基站的发端架构,因此在OFDM子载波上发送合适的数据使其在时域呈现出方波信号,其生成框架如图4所示。
对于单载波OOK信号,它以单极性不归零码序列来控制入射载波或者连续波(Continuous Waves,CW)的开启与关闭,其调制方式简单,适用于低功耗信号。
2)O-QPSK或者DBPSK
对于active tag可以采用偏移正交相移键控(O-QPSK)或者差分二进制相移键控(DBPSK)调制来发送数据,这2种调制方式属于恒包络调制技术,该两种调制方式的介绍如下:
O-QPSK的调制过程可以描述为:串行输入的二进制数据码流被分成I路和Q路2个不同的路径传输,其中“I”是用来与数据波形“同相”的成分,“Q”是与数据波形“正交”的部分,即原始输入数据的偶数位被分配到I路,奇数位被分配到Q路,并且保证同相和正交两支路的码流在时间上错开了半个码元周期。之后,分别用I路和Q路数据对载波进行调制,即用4种离散相位变化中的1种来代表要传输的一个符号(一个比特对)。
BPSK和QPSK相似,都是采用相位来承载符号信息,例如当输入的码元为“1”时,基带调制器的输出为1(相位0度);当输入的码元为“0”时,基带调制器的输出为-1(相位0度)。但是BPSK存在相位模糊问题,所谓相位模糊,是指则恢复的数字信息会发生“0”变“1”或“1”变“0”,从而造成错误的恢复。这种因为本地参考载波倒相,而在接收系统出现错误恢复的现象称为“相位模糊”现象。为了解决这个问题便引入差分编码,使得收端的解码是根据相位的变化来判断的,而不是根据相位的绝对值,这便是DBPSK。
值得提出的是,为了获得更好的链路性能和抗干扰性能,会采用扩展序列和/或编码等方式将原bit信息进行扩展,常见的处理方式包括如图5所示的O-QPSK发送和扩展序列,以及如图6所示的DBPSK调制和扩展序列。
3)MSK和GMSK调制
最小频移键控(Minimum Shift Keying,MSK)是恒定包络连续相位调制,其调制方式是由二进制频移键控(Fequency Shift Keying,FSK)调制发展而来的。在FSK中载波频率随着调制信号的随机变化而变化,调制信号通常是“0”或“1”,且调制之后的相位是不连续的。如果相位是连续的,就称其为连续相位频移键控(Continuous Phase Frequency Shift Keying,CP-FSK)。所谓的MSK调制方式,是CP-FSK的一种特殊形式,其调制指数为0.5。MSK调制原理可以表示为以下公式:
令其中,θk称为附加的相位函数用来保证不同码元之间的相位连续,ωct为载波角频率,Ts为码元宽度;ak为第k个码元的相位常数。MSK的调制框图如图7所示。
由于MSK的相位路线是曲线,且从频谱仪上观察出其功率谱旁瓣偏移中心频率,衰减较慢。因此,在MSK调制之前加一高斯滤波器来弥补MSK的缺点,从而达到改善衰减性能的目的,因此该调制器被称为高斯最小频移键控(GMSK)。如图8所示GMSK信号调制原理图可知,GMSK调制就是在MSK调制器前加入一个高斯低通滤波器,从而使得信号更加光滑,功率谱的旁瓣衰减性能得到明显提升。经过MSK调制之后就出来符号数据即I路和Q路,最后得出GMSK表达式如下:
其中,A代表信号包络,ωc代表载波角频率,代表信息相位。
三、第三代合作伙伴计划(3rd Generation Partnership Project,3GPP)中AIoT设备的分类和特征
在3GPP R19的AIoT研究中根据环境物联网设备的能量存储容量以及生成射频信号进行传输的能力来表征环境物联网设备。该AIoT设备具有以下储能能力之一:
存储容量1:没有存储能量的能力;
存储容量2:能量可以存储高达E1或E2焦耳,其中有可能E1=E2;
存储容量3:能量可以存储高达E2焦耳。
依靠这些存储容量,该研究考虑了以下一组环境物联网设备:
设备A:没有能量存储,没有独立的信号生成/放大,即反向散射传输;
设备B:具有能量存储,没有独立的信号生成,即反向散射传输。存储能量的使用可以包括对反射信号的放大;
设备C:具有能量存储,具有独立的信号生成,即用于传输的有源射频组件。
四、AIoT设备的连接拓扑和部署场景
1)如图9a所示,AIoT设备的连接拓扑1中,AIoT设备和基站(Base Station,BS)建立双向直接连接。
2)如图9b所示,AIoT设备的连接拓扑2中,AIoT设备和一个中间节点(intermediate node)建立双向连接,中间节点可以是转发(relay)节点、IAB节点、用户设备(User Equipment,UE)、中继器(repeater)等。中间节点将AIoT设备的数据和/或信令传输给基站,或者中间节点将基站的数据和/或信令传输给AIoT设备。
3)如图9c和图9d所示,AIoT设备的连接拓扑3中,AIoT设备将数据/信令发送给基站,而从一个辅助节点接收数据/信令;或者AIoT设备从基站接收数据/信令,而将数据/信令发送给一个辅助节点。其中,辅助节点可以是relay、IAB节点、UE、repeater等。
4)如图9e所示,AIoT设备的连接拓扑4中,AIoT设备和UE建立双向直接连接。
需要说明的是,本申请实施例中的极低功耗通信模块与上述AIoT设备相似,不同之处在于,具备该极低功耗通信模块的通信设备同时还具备主通信模块。为了便于说明,本申请以下实施例中提到的AIoT设备是指极低功耗通信模块。
五、NR的功率控制
NR协议对上行信道或信号(例如:物理上行共享信道(Physical Uplink Shared Channel,PUSCH)、物理上行控制信道(Physical Uplink Control Channel,PUCCH)、探测参考信号(Sounding Reference Signal,SRS)和物理随机接入信道(Physical Random Access Channel,PRACH)的功率控制进行了定义。
1)对PUSCH的功率控制:
如果UE使用索引为j的参数集配置和索引为l的PUSCH功率控制进程,在服务小区c的载波f的活动上行链路(UpLink,UL)带宽部分(Bandwidth Part,BWP)b上发送PUSCH,则UE将在PUSCH传输时机i的PUSCH传输功率PPUSCH,b,f,c(i,j,qd,l)确定为:
其中,参数j用于表示开环功率控制的参数配置索引(比如,j=0表示RACH中的PUSCH,j=1表示配置授权(Configured Grant)相关的PUSCH,j>=2表示动态授权(dynamic grant)的PUSCH),参数l用于表示闭环功率控制的进程索引,qd表示参考信号索引。PCMAX,f,c(i)是UE在时刻i的最大发送功率,是针对载波和小区定义的;PO_PUSCH,b,f,c(j)是开环控制配置索引j的(在1个15kHz子载波间隔(Subcarrier Spacing,SCS)的资源块(resource block,RB)上的)目标接收功率,是针对BWP、载波和小区定义的;PLb,f,c(qd)是UE用参考信号qd估计的下行路损,是针对BWP、载波和小区定义的;αb,f,c(j)是开环控制配置索引j定义的部分路损补偿因子,是针对BWP、载波和小区定义的;ΔTF,b,f,c(i)定义了UE在时刻i的每个RE所需的发送功率,是针对BWP、载波和小区定义的,其仅用于单层传输,在多层传输时为0;是PUSCH在时刻i的RB数量,结合SCS就确定了PUSCH的总带宽,是针对BWP、载波和小区定义的;fb,f,c(i,l)是闭环功率控制进程l在时刻i引入的偏置值,是将过去时刻发射功率控制(Transmit Power Control,TPC)命令指示的功率调整值的总和,即,其中,δPUSCH,b,f,c(m,l)是第l个闭环功率控制进程的第m个TPC命令指示功率调整值,都是针对BWP、载波和小区定义的。
2)对PUCCH的功率控制:
如果UE使用索引为l的PUCCH功率控制进程,在主小区c中的载波f的活动UL BWP b上发送PUCCH,则UE将PUCCH传输时机i中的PUCCH发送功率PPUCCH,b,f,c(i,qu,qd,l)确定为:
其中,qu是PUCCH的索引(UE可能同时要传多个PUCCH)。
值得注意的是,上述PUCCH的功率控制与PUSCH的功率控制包括以下区别:
i)无部分路损补偿因子;
ii)PO_PUCCH,b,f,c(qu)是第qu个PUCCH的目标接收功率,是针对BWP、载波和小区定义的;
iii)ΔF_PUCCH(F)表示不同PUCCH格式(F)需要引入的功率控制偏置,例如:如果引入不同PUCCH格式的功率控制偏置,则ΔF_PUCCH(F0)对应PUCCH格式(format)0、ΔF_PUCCH(F1)对应PUCCH format 1、ΔF_PUCCH(F2)对应PUCCH format 2、ΔF_PUCCH(F3)对应PUCCH format 3、ΔF_PUCCH(F4)对应PUCCH format 4;否则,ΔF_PUCCH(F)=0。
iv)gb,f,c(i,l)是闭环功率控制进程l在时刻i引入的偏置值,是将过去时刻TPC命令指示的功率调整值的总和。
3)对SRS的功率控制:
如果UE使用索引为l的SRS功率控制进程,在服务小区c的载波f的活动UL BWP b上基于SRS资源集的配置来发送SRS,则UE将SRS发送时机i中的SRS发送功率PSRS,b,f,c(i,qs,l)确定为:
其中,PLb,f,c(qd)表示基于参考信号qd估计的下行路损。
值得注意的是,上述SRS的功率控制与PUSCH的功率控制包括以下区别:
i)PO_SRS,b,f,c(qs)是第qs个SRS资源集的SRS目标接收功率,是针对BWP、载波和小区定义的;
ii)MSRS,b,f,c(i)是SRS在时刻i的RB数量,结合SCS就确定了SRS的总带宽,是针对BWP、载波和小区定义的;
iii)αSRS,b,f,c(qs)是SRS资源集qs的部分路损补偿因子,是针对BWP、载波和小区定义的;
iv)hb,f,c(i,l)是闭环功率控制进程l在时刻i引入的偏置值,可以是和PUSCH的功控偏置值相同,或者(当无PUSCH传输时)是将过去时刻TPC命令指示的功率调整值的总和。
4)对PRACH的功率控制:
UE在传输时机i中基于小区c的下行链路(DownLink,DL)参考信号(Reference Signal,RS)来确定小区c的载波f的活动UL BWP b上的物理随机接入信道(PRACH)的传输功率PPRACH,B,F,c(i)定义为:
PPRACH,b,f,c(i)=min{PCMAX,f,c(i),PPRACH,target,f,c+PLb,f,c};
值得注意的是,上述PRACH的功率控制与PUSCH的功率控制包括以下区别:
i)PPRACH,target,f,c是PRACH的目标接收功率,由参数:PREAMBLE_RECEIVED_TARGET_POWER给出,是针对BWP、载波和小区定义的;
ii)PLb,f,c是UE用唯一关联的参考信号估计的下行路损(referenceSignalPower–higher layer filtered RSRP in dBm),是针对BWP、载波和小区定义的。
由上可知,NR定义的发射功率控制方法是基于OFDM/DFT-S-OFDM这类多载波信号和UE-gNB/IAB直接连接拓扑的假设下设计的,而极低功耗通信模块可能会采用OOK/ASK/FSK等单载波信号,且连接拓扑也不局限于直接连接的简单拓扑,比如有可能是拓扑3的分离式架构,因此,相关技术中的发射功率控制方法并不适用于对极低功耗通信模块的功率控制。
例如:PUSCH、PUCCH、SRS的功率控制都需要考虑信号的格式,即信号占用的带宽(RB数量和SCS),以及每个资源元素(Resource Element,RE)需要承载的比特数(Bits Per RE),而占用的带宽又是以OFDM信号为假设进行计算的。而极低功耗通信模块可能需要采用新的信号,可能的信号类型包括:OOK,ASK,FSK,GMSK,O-QPSK,DBPSK等,而这些信号都是单载波调制的信号。不同信号的实际占用带宽、每个符号所需要占用的比特数都会影响发送功率的计算。相关技术中NR的功率计算公式是以某个子载波间隔(如15kHz)的OFDM信号为基准进行计算的,其不能直接用于单载波信号的功率计算。因此,相关技术中缺少对极低功耗通信模块的发射功率控制方法。
其中,单载波调制的定义为:在一个固定的频段内只采用一个载波的调制技术。对于单载波调制来说,一个符号最多可以承载2路正交的信号(分为I、Q两路)。当符号速率和传输脉冲固定时,单载波信号占用的带宽也是固定的。比如,假设双边带的ASK信号,若传输脉冲为理想的时域sinc信号,那么信号占用的带宽为1/Ts,其中,Ts为1个脉冲的时间宽度,也是1个调制符号的时间长度。
六、集成极低功耗通信模块的非物联网设备
极低功耗通信模块一般单独应用于对功耗、复杂度、续航有较高要求的终端上,比如物联网终端。一种扩展的应用场景是将极低功耗通信模块应用在手机等非物联网设备上,包括终端和网络侧设备,这样该设备上就同时具备主通信模块和极低功耗通信模块,其中,主通信模块速率、谱效比较高,但同时功耗也比较高,如果长时间开启会降低设备的续航能力,适合用于在短时间传输大量数据;而极低功耗通信模块则相反,其速率、谱效可能比较低,但是功耗非常低,适合用于长时间传输少量数据,或者用于监听控制面信令,避免或者减少因非连续接收(Discontinuous Reception,DRX)造成的额外时延。图10展示了具备主通信模块和极低功耗通信模块的终端和网络侧设备之间的信息交互示意图。两个设备之间通过极低功耗通信模块交互第一信息和第二信息,然后在设备内与主通信模块进行信息交互,比如由极低功耗通信模块唤醒主通信模块进行进一步操作等。
在本申请实施例中,基于集成极低功耗通信模块的非物联网设备的发送信号以及拓扑结构特征,提供了对极低功耗通信模块的发射功率控制方法,以及对极低功耗通信模块和主通信模块进行功率控制的配置方法。
为了便于说明,先对本申请实施例中的以下名词进行解释说明:
1)第一通信模块,即主通信模块,其也称之为MR。主通信模块通常是指支持传统通信方式(如4G、5G等)的模块,例如支持OFDM通信(包括上行和/或下行)的模块。
2)第二通信模块,即极低功耗通信模块,其也称之为或LR。极低功耗通信模块是指支持以反向散射(backscatter)方式发送信号(比如AIoT的Device A或Device B)或以低功耗的主动生成载波方式的发送信号(比如AIoT的Device C)和/或支持低功耗接收模块(如低功耗唤醒接收机)。
可选地,极低功耗通信模块还可以支持能量收集(从光,太阳能,无线信号等收集能量)。
需要说明的是,对于以backscatter发送信号的方式,其激励源信号可以是具有极低功耗通信模块的终端自己产生的或者其他设备产生的。如激励源信号由第一设备上的主通信模块产生,或者,激励源信号由其他设备产生。
值得提出的是,极低功耗通信模块的功耗明显低于主通信模块,例如:极低功耗通信模块的功耗一般为几十微瓦到几百微瓦,而主通信模块的功耗一般为几十毫瓦到上千毫瓦;极低功耗通信模块的成本也明显低于主通信模块的成本。
下面结合附图,通过一些实施例及其应用场景对本申请实施例提供的发射功率控制方法、发射功率控制装置及相关设备进行详细地说明。
参阅图11,本申请实施例提供的一种发射功率控制方法,其执行主体为第一设备,如图11所示,该发射功率控制方法包括以下步骤:
步骤111、第一设备获取第一信息,所述第一设备包括第一通信模块和第二通信模块,所述第二通信模块为极低功耗通信模块。
步骤112、所述第一设备根据所述第一信息,确定所述第一通信模块的第一目标发射功率和所述第二通信模块的第二目标发射功率;其中,所述第一目标发射功率用于所述第一通信模块发送第一信号,所述第二目标发射功率用于所述第二通信模块发送第二信号。
在一些实施方式中,在第一设备确定所述第一目标发射功率后,所述第一设备控制所述第一通信模块按照所述第一目标发射功率发送第一信号。
可选地,所述第一目标发射功率可以是指定时频资源上的发射功率,此时,第一设备可以控制所述第一通信模块在所述第一目标发射功率对应的时频资源上按照所述第一目标发射功率发送第一信号。
在一些实施方式中,在第一设备确定所述第二目标发射功率后,所述第一设备控制所述第二通信模块按照所述第二目标发射功率发送第二信号。
可选地,所述第二目标发射功率可以是指定时频资源上的发射功率,此时,第一设备可以控制所述第二通信模块在所述第二目标发射功率对应的时频资源上按照所述第二目标发射功率发送第二信号。
本申请实施例中的第一设备是指具备第一通信模块和第二通信模块的设备,其具体可以是网络侧设备或终端,为了便于说明,本申请实施例中,通常以第一设备是终端为例进行举例说明。
需要说明的是,在实际应用场景下,上述步骤113和步骤114的执行顺序可以是先执行步骤113再执行步骤114,或者先执行步骤114再执行步骤113,或者同时执行步骤113和步骤114,图11所示发射功率控制方法流程图仅作为示例,不对步骤113和步骤114的执行顺序构成限定。
在一些实施方式中,第一通信模块发送的第一信号可以是OFDM信号,第二通信模块发送的第二信号可以是单载波信号。
当然,除了OFDM信号和单载波信号为,上述第一信号和第二信号还可以是其他类型的信号的组合,在此不构成具体限定。
在一些实施方式中,上述第一信息可以直接指示第一目标发射信号和第二目标发射信号,也可以指示用于确定第一目标发射信号和第二目标发射信号的相关信息。
在一些实施方式中,第一设备获取第一信息的方式可以包括以下至少一项:
接收网络侧(第二设备)配置的第一信息的至少部分;
获取本地存储或计算得到的第一信息的至少部分,例如:终端获取网络侧配置的第一调整量,且本地已知第一通信模块的第一目标发射功率;
获取协议约定的第一信息的至少部分。
在本申请实施例中,对于同时具有主通信模块(即第一通信模块)和极低功耗通信模块(即第二通信模块)的第一设备,可以基于第一信息对第一设备上的两个通信模块进行功率控制,使得第一设备上基于主通信模块发送的第一信号的第一目标发射功率和第一设备上基于极低功耗通信模块发送的第二信号的第二目标发射功率更加灵活,提升了第一设备的通信性能。
在一些实施方式中,所述第一信息包括以下至少一项:
所述第一通信模块的第一目标发射功率和第一调整量,所述第二目标发射功率基于所述第一目标发射功率和所述第一调整量确定;
所述第一通信模块的第一参数和第二调整量,第二参数基于所述第一参数和所述第二调整量确定;
所述第二通信模块的第二目标发射功率和第三调整量,所述第一目标发射功率基于所述第二目标发射功率和所述第三调整量确定;
所述第二通信模块的第二参数和第四调整量,第一参数基于所述第二参数和所述第四调整量确定;
第一参数和第二参数;
其中,所述第一参数包括用于确定所述第一目标发射功率的参数;所述第二参数包括用于确定所述第二目标发射功率的参数。
实施方式一:所述第一信息包括所述第一通信模块的第一目标发射功率和第一调整量。
本实施方式中,可以将所述第一通信模块的第一目标发射功率与第二通信模块的第二目标发射功率与对应的第一目标发射功率之间的差值作为第一调整量,这样,通过指示第一调整量,便可以以第一目标发射功率为参考确定对应的第二目标发射功率。
例如:网络指示或约定一个功率调整量ΔMR->LR,LR的某个目标发送信道(PUSCH、PRACH、SRS、PUCCH等)的第二目标发送功率为主通信模块对应信道的第一目标发射功率和调整量ΔMR->LR之和。
具体地,PLR,PUSCH,b′,f′,c′(i′,j′,q′d,l′)=PMR,PUSCH,b,f,c(i,j,qd,l)+ΔMR->LR;
PLR,PUCCH,b′,f′,c′(i′,qu′,q′d,l′)=PMR,PUCCH,b,f,c(i,qu,qd,l)+ΔMR->LR;
PLR,SRS,b′,f′,c′(i′,qs′,l′)=PMR,SRS,b,f,c(i,qs,l)+ΔMR->LR;
PLR,PRACH,b′,f′,c′(i′)=PMR,PRACH,b,f,c(i)+ΔMR->LR;
PLR,PUCCH,b′,f′,c′(i′,qu′,q′d,l′)=PMR,PUCCH,b,f,c(i,qu,qd,l)+ΔMR->LR;
PLR,SRS,b′,f′,c′(i′,qs′,l′)=PMR,SRS,b,f,c(i,qs,l)+ΔMR->LR;
PLR,PRACH,b′,f′,c′(i′)=PMR,PRACH,b,f,c(i)+ΔMR->LR;
其中,参数i为符号/时间索引;参数j为开环功率控制的参数配置索引(比如,j=0表示RACH中的PUSCH,j=1表示配置授权(Configured Grant)相关的PUSCH,j>=2表示动态授权(dynamic grant)的PUSCH);参数l为闭环功率控制的进程索引;qd为参考信号索引;qu为PUCCH的索引;qs为SRS资源集索引;c为服务小区索引;f为载波索引;b为带宽部分(Bandwidth Part,BWP)索引。
上述b’,c’,f’,i’,j’,q’,l’的含义与上述b,c,f,i,j,q,l的含义相似,不同之处在于,b’,c’,f’,i’,j’,q’,l’用于LR,b,c,f,i,j,q,l用于MR。
在一些实施方式中,MR的b,c,f,i,j,q,l与LR的b’,c’,f’,i’,j’,q’,l’可以相同。
在另一些实施方式中,MR的b,c,f,i,j,q,l与LR的b’,c’,f’,i’,j’,q’,l’中的至少一项可以不同,此时,第一设备可以基于网络侧指示或协议约定获取MR的b,c,f,i,j,q,l与LR的b’,c’,f’,i’,j’,q’,l’之间的关联关系,从而基于b,c,f,i,j,q,l的第一目标发射功率作为参考来确定关联的b’,c’,f’,i’,j’,q’,l’的第二目标发射功率,或者基于b’,c’,f’,i’,j’,q’,l’的第二目标发射功率作为参考来确定关联的b,c,f,i,j,q,l的第一目标发射功率。
在一种实施方式中,PLR,PUSCH,b′,f′,c′(i′,j′,q′d,l′)表示LR在使用索引为j’的参数集配置和索引为l’的PUSCH功率控制进程,在服务小区c’的载波f’的活动上行链路(UpLink,UL)带宽部分(Bandwidth Part,BWP)b’上发送PUSCH,则LR将在PUSCH传输时机i’的PUSCH的第二目标发射功率;
PMR,PUSCH,b,f,c(i,j,qd,l)表示MR在使用索引为j的参数集配置和索引为l的PUSCH功率控制进程,在服务小区c的载波f的活动上行链路(UpLink,UL)带宽部分(Bandwidth Part,BWP)b上发送PUSCH,则LR将在PUSCH传输时机i的PUSCH的第二目标发射功率;
与PUSCH相对应的,上述PLR,PUCCH,b′,f′,c′(i′,qu′,q′d,l′)表示LR发射的PUCCH的第二目标发射功率,PMR,PUCCH,b,f,c(i,qu,qd,l)表示MR发射的PUCCH的第一目标发射功率;上述PLR,SRS,b′,f′,c′(i′,qs′,l′)表示LR发射的SRS的第二目标发射功率,PMR,SRS,b,f,c(i,qs,l)表示MR发射的SRS的第一目标发射功率;上述PLR,PRACH,b′,f′,c′(i′)表示LR发射的PRACH的第二目标发射功率,PMR,PRACH,b,f,c(i)表示MR发射的PRACH的第一目标发射功率,在此不再赘述。
实施方式二:所述第一信息包括所述第二通信模块的第二目标发射功率和第三调整量。
本实施方式与上述实施方式一的不同之处包括:本实施方式二中,是以第二目标发射功率为参考,基于第三调整量来调整第二目标发射功率,以得到对应的第一目标发射功率。
以上实施方式一和实施方式二中,以第一通信模块和第二通信模块中一个模块作为参考模块对另一模块进行功率控制方法,比较适合在一个模块在工作的过程中,激活了另外一个模块的情况下进行增量式的功率控制,避免让第一设备重新获取全部功率控制参数,以及重新进行路损估计,节省了功率控制过程中的信令开销和时延。
实施方式三:所述第一信息包括所述第一通信模块的第一参数和第二调整量。
本实施方式中,可以基于第二调整量对第一参数进行调整,得到第二参数。此后,第一设备可以基于第一参数计算得到第一目标发射功率,以及基于第二参数计算得到第二目标发射功率。
其中,第一通信模块的第一参数,可以参考相关技术中NR的功率控制计算公式中的参数,在此不再赘述。
其中,第二通信模块的第二参数可以是用于第二信号的功率控制计算公式中的参数。
在一些实施方式中,所述第一参数包括所述第一通信模块对应的以下参数中至少一项或至少两项的组合:
第一目标接收功率、第一路径损耗、第一最大发送功率、所述第一信号的类型、第一闭环功率控制的偏置值、所述第一信号的占用带宽的RB数量、所述第一信号的每一个RB包含的子载波数量、所述第一信号中每个资源元素RE平均承载的比特数量、第一部分路损补偿因子;
其中,所述第一路径损耗为所述第一设备和第三设备之间的路径损耗,所述第三设备为所述第一信号的接收端设备;
或者,
所述第二参数包括所述第二通信模块对应的以下参数中至少一项或至少两项的组合:
第二目标接收功率、第二路径损耗、第二最大发送功率、所述第二信号的类型、所述第二信号中一个符号的时间长度、所述第二信号中一个符号的频域宽度、第二闭环功率控制的偏置值、所述第二信号的占用带宽的RB数量、所述第二信号的每一个RB包含的子载波数量、所述第二信号中每个符号平均承载的比特数量、第二部分路损补偿因子;
其中,所述第二路径损耗为所述第一设备和第四设备之间的路径损耗,所述第四设备为所述第二信号的接收端设备。
在一些实施方式中,上述第四设备和第三设备可以是同一设备,或者是不同设备,在此不作具体限定。
具体地,上述第四设备可以是图9a中的基站、图9b中的中继节点、图9c中的幅值节点、图9d中的基站以及图9e中的UE。上述第四设备可以是图9a中的基站、图9b中的中继节点、图9c中的基站、图9d中的辅助节点以及图9e中的UE。
在一些实施方式中,根据第二参数计算第二目标发射功率的方式包括以下两种:
方式一:将第二信号的相关参数折算成OFDM信号的参数,并将该折算后的参数代入相关技术中的上行功率计算公式,以计算得到第二信号的第二目标发射功率。
例如:若第二信号为单载波信号,则可以将第二信号的参数转换为等效的OFDM信号的参数,并将等效的OFDM信号的参数代入相关技术中NR的功率控制计算公式中,以得到单载波信号的第二目标发射功率。
作为一种可选的实施方式,所述第二参数表示第二信号等效的OFDM信号的参数,此时可以根据所述第二参数,基于以下公式确定所述第二目标发射功率:
其中,P'表示所述第二目标发射功率;P'CMAX表示所述第二通信模块的最大发送功率;P'O表示在1个RB上的等效的OFDM信号的目标接收功率;表示所述第二信号的占用带宽B的RB数量;PL'表示所述第二信号的路径损耗;Δ'TF表示所述第二通信模块在每个资源元素RE所需的发送功率;f'表示对所述第二信号进行闭环功率控制的偏置值。
在一些实施方式中,Δ'TF基于以下公式确定:
其中,γ'表示第二信号的每个符号平均承载的比特数量;γ″表示所述第二信号在每个RE承载的平均比特数量;表示所述第二信号的1个RB包含的OFDM子载波个数;β'0和β'1为偏置值。
需要说明的是,γ'得到了每个单载波符号上的平均比特数量,而相关技术中的OFDM功率控制计算公式的ΔTF是按照1个RE承载的平均比特数量定义的,因此,还需要将γ'除以得到所述第二信号每个RE承载的平均比特数量。
可选地,上述第二目标发射功率可以特指第i’个符号/发送时间,第j’个开环控制配置,基于参考信号q’,第l’个闭环功率控制进程计算得到的第二信号的第二目标发射功率,为了简单起见,本申请实施例中的目标发射功率的计算公式中省略了上述i’,j’,q’,l’参数。
例如:第二号在第i’个符号/发送时间,第j’个开环控制配置,基于参考信号q’,第l’个闭环功率控制进程上的第二目标发射功率可以基于以下公式计算得到:
其中,P'O(j')和相关技术中的NR定义相同,为假设在1个15kHz SCS的RB上的等效OFDM信号的目标接收功率。
上述β'0和β'1为是两个与传输信道(数据/信令)、调制方式等有关的偏置值,可以为常数,也可以是j’、l’的函数,其中,l’为功率控制进程索引;j’为开环控制配置索引;β'0和β'1为可选参数,在本申请实施例中,某参数可选意味着功率调整不随该参数变化(例如:β'0和β'1取值为1时等于不生效)。
f'(i',l')是闭环功率控制进程l’在时刻i’引入的偏置值,可以由信令指示绝对值,也可以由网络侧指示差分值,UE通过累积求和得到绝对值。可选地,如果在闭环功率控制尚未生效时,比如在未接收到TPC信令时,或者在建立连接之前,f'(i',l')f(i,l)可以不存在,此时只有开环的功率控制。
可选地,上述目标发射功率还可以是针对BWP b’、载波f’和小区c’定义的,为了简单起见,本申请实施例中的目标发射功率的计算公式中还省略上述b’,f’,c’参数。
本实施方式中,通过将第二信号的参数转换为等效的OFDM信号的参数,从而能够基于相关技术中对NR的功率控制计算公式来计算第二通信模块对第二信号的第二目标发射功率。
方式二:为第二信号设计上行功率计算公式,并将第二信号对应的第二参数代入该公式,以计算得到第二信号的第二目标发射功率。
作为一种可选的实施方式,所述第二信号为单载波信号,所述第二参数表示为第二信号定义的功率控制计算公式中的参数,此时可以将所述第二参数代入以下公式,以得到所述第二目标发射功率:
P'=min{P'CMAX,P'O,S+PL'+Δ'TF,S+f'};
P'=min{P'CMAX,P'O,S+PL'+Δ'TF,S+f'};
其中,P'O,S表示在1个单载波符号上的目标接收功率;Δ'TF,S表示所述第二通信模块在每个单载波符号所需的发射功率。
在一些实施方式中,因为每个时刻可能调制的单载波信号都是不一样的,因此,P'O,S可以取第二信号的平均功率,或者从第二信号的功率谱密度取固定带宽上累积的功率总和作为P'O,S。
例如:假设第二信号为OOK/ASK信号,如果有两种调制符号,分别为0和1,等概率出现,那么平均功率就是0.5。
再例如:根据计算/测量出随机信号的功率谱密度(Power Spectral Density,PSD)进行计算。如可以按照一定的准则,选择某带宽内的区域进行功率累积的功率总和作为PO,S,比如只选择第一个主瓣内的区域进行功率累积。
在一些实施方式中,Δ'TF,S基于以下公式确定:
其中,T's表示所述第二信号中的一个单载波符号的时间长度;B'表示所述第二信号中的一个单载波符号的频域宽度;β'2和β'3为两个偏置值。
可选地,上述第二目标发射功率可以特指第i’个符号/发送时间,第j’个开环控制配置,基于参考信号q’,第l’个闭环功率控制进程计算得到的第二信号的第二目标发射功率,为了简单起见,本申请实施例中的目标发射功率的计算公式中省略了上述i’,j’,q’,l’参数。
例如:第二号在第i’个符号/发送时间,第j’个开环控制配置,基于参考信号q’,第l’个闭环功率控制进程上的第二目标发射功率可以基于以下公式计算得到:
P'(i',j',q',l')=min{P'CMAX(i'),P'O,S(i')+PL'(q')+Δ'TF,S+f'(i',l')};
P'(i',j',q',l')=min{P'CMAX(i'),P'O,S(i')+PL'(q')+Δ'TF,S+f'(i',l')};
其中,P'O,S(i')定义为在1个单载波符号上的第二目标接收功率,和带宽无关,但和调制方式有关,比如定义成某调制方式下的平均功率、平均功率谱密度的3dB带宽功率等;
一般情况下,TsB=1,但在高谱效通信中,可能会令TsB<1;
β'2和β'3为两个和第二信号的传输信道(数据/信令)、调制方式等有关的偏置值,可以为常数,也可以是j’、l’的函数,由网络侧或者协议定义。β'2和β'3为可选参数,在本申请实施例中,某参数可选意味着功率调整不随该参数变化(例如:β'2和β'3取值为1时等于不生效)。
本实施方式中,在第二信号为单载波信号的情况下,基于单载波信号的特征,定义了适用于单载波信号的上行发射功率的计算公式。这样,能够直接将单载波信号的第二参数代入上述公式,以计算得到第二通信模块对单载波信号的第二目标发射功率。
实施方式四:所述第一信息包括所述第二通信模块的第二参数和第四调整量。
本实施方式与上述实施方式三的不同之处包括:本实施方式四中,是以第二参数为参考,基于第四调整量对第二参数进行调整,以得到第一参数。
以上实施方式三和实施方式四能够对第一通信模块和第二通信模块进行联合功率控制,以通过一次功率参数配置过程,实现配置两个通信模块的功率控制参数。例如:若在第一设备开机时需要同时开启两个通信模块,此时可以基于上述实施方式三和实施方式四获取两个通信模块的功率控制参数。
实施方式五:第一信息可以直接指示第一参数和第二参数。
本实施方式中,第一设备可以直接获取第一参数和第二参数,并基于第一参数和第二参数分别计算得到第一目标发射功率和第二目标发射功率。
在一些实施方式中,所述方法还包括:
所述第一设备获取第一关联信息;
在所述第一信息包括所述第一目标发射功率和所述第一调整量的情况下,所述第一关联信息用于指示所述第一目标发射功率、所述第一调整量和所述第二目标发射功率之间的关联关系;
在所述第一信息包括所述第一参数和所述第二调整量的情况下,所述第一关联信息用于指示所述第一参数、所述第二调整量和所述第二参数之间的关联关系;
在所述第一信息包括所述第二目标发射功率和所述第三调整量的情况下,所述第一关联信息用于指示所述第二目标发射功率、所述第三调整量和所述第一目标发射功率之间的关联关系;
在所述第一信息包括所述第二参数和所述第四调整量的情况下,所述第一关联信息用于指示所述第二参数、所述第四调整量和所述第一目标发射功率之间的关联关系。
在一些实施方式中,所述第一关联信息可以是第一信号的b,f,c,i,j,q,l,与第二信号的b′,f′,c′,i’,j’,q’,l’关联信息。
可选地,b,f,c,i,j,q,l与关联的b′,f′,c′,i’,j’,q’,l’的取值相同,则表示两者相互关联。
或者,可以通过网络侧指示或协议约定的方式,指示b,f,c,i,j,q,l与b′,f′,c′,i’,j’,q’,l’的关联关系。
对于上述实施方式一,所述第一关联信息用于指示所述第一目标发射功率、所述第一调整量和所述第二目标发射功率之间的关联关系,这样,可以利用第一调整量对第一目标发射功率进行调整,以得到与该第一调整量和第一目标发射功率关联的第二目标发射功率。
对于上述实施方式二,所述第一关联信息用于指示所述第一参数、所述第二调整量和所述第二参数之间的关联关系,这样,可以利用第二调整量对第一参数进行调整,以得到与该第二调整量和第一参数关联的第二参数。
对于上述实施方式三,所述第一关联信息用于指示所述第二目标发射功率、所述第三调整量和所述第一目标发射功率之间的关联关系,这样,可以利用第三调整量对第二目标发射功率进行调整,以得到与该第三调整量和第二目标发射功率关联的第一目标发射功率。
对于上述实施方式四,所述第一关联信息用于指示所述第二参数、所述第四调整量和所述第一目标发射功率之间的关联关系,这样,可以利用第四调整量对第二参数进行调整,以得到与该第四调整量和第二参数关联的第一参数。
在一些实施方式中,所述第二调整量包括以下至少一项:
目标接收功率的调整量:+ΔPMR->LR,O,b′,f′,c′;
部分路损补偿因子的调整量:ΔαMR->LR,b′,f′,c′;
路径损耗的调整量:ΔPLMR->LR,b′,f′,c′;
功率控制偏置值的调整量:ΔfMR->LR,b′,f′,c′;
其他调整量:比如当LR为仅支持上行链路(UpLink only,UL only),此时LR的功率控制可以参考MR下行的参考信号接收功率(Reference Signal Received Power,RSRP)来测算路径损耗,而下行的路损不能直接用作UL的路损,这是因为MR和LR可能采用不同的频点、不同的信号格式,需要加入额外的路径损耗偏置值来补偿这些因素。
需要说明的是,上述第二调整量可以与i,j,q,l等参数关联,比如ΔPMR->LR,O,b′,f′,c′(i′,j′,q′,l′)。
作为一种可选的实施方式,所述方法还包括:
所述第一设备利用所述第一通信模块对来自所述第四设备的参考信号进行测量,得到第三路径损耗;
所述第一设备根据所述参考信号和所述第二信号的差异,确定路径损耗偏置值;
所述第一设备根据所述第三路径损耗和所述路径损耗偏置值,确定所述第二路径损耗。
其中,第三路径损耗可以是基于第一通信模块对应的参考信号测量得到的第一设备与第四设备之间的路径损耗。而第二路径损耗是在第一设备与第四设备之间传输第二信号所造成的路径损耗。
需要说明的是,基于第一通信模块传输的信号与第二通信模块传输的信号可能是不同传输格式或不同带宽的信号,从而需要基于第一通信模块测量的所述参考信号和所述第二信号的差异来确定基于这两种信号测量得到的路径损耗之间的路径损耗偏置值,并基于该路径损耗偏置值对基于第一通信模块对第一设备与第四设备之间的参考信号进行测量得到第三路径损耗进行调整,以得到第二通信模块与第四设备之间的第二路径损耗。
值得提出的是,上述路径损耗偏置值可以不通过第二调整量进行独立指示,而是可以包含在第二路径损耗或第二闭环功率控制的偏置值中。
本实施方式中,可以利用第一通信模块的路径损耗测量功能,来确定第二通信模块与第四设备之间的第二路径损耗。
需要说明的是,在一些实施方式中,在第二通信模块具备参考信号测量功能的情况下,也可以利用第二通信模块的路径损耗测量功能,来测量第二通信模块与第四设备之间的第二路径损耗。
在一些实施方式中,在所述第一通信模块与所述第二通信模块的信号传输带宽不同的情况下:
所述第二调整量包括第一功率调整量,所述第一功率调整量用于指示由所述第一通信模块的信号传输带宽转换为所述第二通信模块的信号传输带宽所引起的功率调整;或者,
所述第四调整量包括第二功率调整量,所述第二功率调整量用于指示由所述第二通信模块的信号传输带宽转换为所述第一通信模块的信号传输带宽所引起的功率调整。
其中,上述第一功率调整量和第二功率调整量用于指示因信号传输带宽不同而引起的功率调整。
例如:在所述第一信号为正交频分复用OFDM信号,所述第二信号为单载波信号,且所述第二信号采用OFDM的信号传输带宽定义来计算第二目标发送功率的情况下:
所述第一功率调整量为:
所述第二功率调整量为:
其中,所述第二信号的占用带宽B的RB数量;所述第一信号的占用带宽B的RB数量。
在一些实施方式中,所述第二信号采用OFDM的带宽定义来计算第二目标发送功率,可以是将第二信号的参数转换为等效的OFDM信号的第二参数,并通过将该第二参数代入以下公式来计算第二目标发射功率:
或者,
以基于以下公式计算第二目标发射功率为例:
在上述实施方式二中,对于MR中与信号带宽对应的参数项由于LR的信号带宽为个RB(SCS为2μ′×15kHz),那么需要加入的第一功率调整量为即等于
在上述实施方式四中,假设LR中与信号带宽对应的参数项由于LR的信号带宽为个RB(SCS为2μ′×15kHz),若MR的信号带宽为(为2μ×15kHz),那么需要加入的第二功率调整量为即等于
在一些实施方式中,在所述第一信号为正交频分复用OFDM信号,所述第二信号为单载波信号,且所述第二信号采用单载波的带宽定义来计算第二目标发送功率的情况下:
所述第一功率调整量为:
所述第二功率调整量为:
其中,表示所述第一信号的占用带宽B的RB数量。
在一些实施方式中,所述第二信号采用单载波的带宽定义来计算第二目标发送功率,可以是将第二参数代入基于为单载波信号定义的以下公式来计算第二目标发射功率:
P'=min{P'CMAX,P'O,S+PL'+Δ'TF,S+f'};或
P'(i',j',q',l')=min{P'CMAX(i'),P'O,S(i')+PL'(q')+Δ'TF,S+f′(i',l′)};
P'=min{P'CMAX,P'O,S+PL'+Δ'TF,S+f'};或
P'(i',j',q',l')=min{P'CMAX(i'),P'O,S(i')+PL'(q')+Δ'TF,S+f′(i',l′)};
以基于以下公式计算第二目标发射功率为例:
P'(i',j',q',l')=min{P'CMAX(i'),P′O,S(i')+PL'(q')+Δ′TF,S+f′(i',l′)};
P'(i',j',q',l')=min{P'CMAX(i'),P′O,S(i')+PL'(q')+Δ′TF,S+f′(i',l′)};
在上述实施方式二中,对于MR中与信号带宽对应的参数项由于LR的功率控制计算公式中不存在与信号带宽对应的参数项,因此,需要加入的第一功率调整量为
在上述实施方式四中,由于LR的功率控制计算公式中不存在与信号带宽对应的参数项,若MR的信号带宽为(为2μ×15kHz),那么需要加入的第二功率调整量为
在一些实施方式中,在所述第一通信模块与所述第二通信模块的信号传输格式不同的情况下:
所述第二调整量包括第三功率调整量,所述第三功率调整量用于指示由所述第一通信模块的信号传输格式转换为所述第二通信模块的信号传输格式所引起的功率调整;或者,
所述第四调整量包括第四功率调整量,所述第四功率调整量用于指示由所述第二通信模块的信号传输格式转换为所述第一通信模块的信号传输格式所引起的功率调整。
其中,上述第三功率调整量和第四功率调整量用于指示因信号传输格式不同而引起的功率调整。
例如:所述第三功率调整量包括:ΔLR,TF-ΔMR,TF;
所述第四功率调整量包括:ΔMR,TF-ΔLR,TF;
其中,ΔMR,TF表示所述第一通信模块在每个资源元素RE所需的发送功率;ΔLR,TF表示所述第二通信模块在每个RE所需的发送功率;
在所述第一信号为正交频分复用OFDM信号,所述第二信号为单载波信号,且所述第二信号采用OFDM的带宽定义来计算第二目标发送功率的情况下:
在所述第一信号为正交频分复用OFDM信号,所述第二信号为单载波信号,且所述第二信号采用单载波的带宽定义来计算第二目标发送功率的情况下:
其中,γ'表示所述第二信号中每个符号平均承载的比特数量;表示1个RB包含的OFDM子载波个数;表示所述第二信号的占用带宽B的RB数量;β'0和β'1为两个偏置值;Ts表示一个单载波符号的时间长度;B表示一个单载波符号的频域宽度;β'2和β'3为两个偏置值。
在一些实施方式中,上述第一功率调整量、第二功率调整量、第三功率调整量和第四功率调整量中的至少一项,可以由网络侧指示或协议约定。
在另一些实施方式中,上述第一功率调整量、第二功率调整量、第三功率调整量和第四功率调整量中的至少一项,可以第一设备根据第一通信模块发送的第一信号和第二通信模块发送的第二信号的差异确定。
需要说明的是,在上述第一信息中的调整量(如第一调整量、第二调整量、第三调整量和第四调整量中的至少一项)由网络侧(如第二设备)配置的情况下,该调整量的配置方式可以包括以下至少一项:
配置方式一:直接配置调整量,其中,BWP,carrier,serving cell,i(occasion),j(parameter set configuration index),q(关联的参考信号),l(power control adjustment state index)可以发生调整。例如:以MR的BWP 1的第一目标接收功率作为参考,调整LR的BWP 2的第二目标接收功率值,那么直接指示关于PMR,O,1,f,c的第一调整量为ΔPMR->LR,O,2,那么可以得到LR在任意f和c上的第二目标接收功率值为PLR,O,2,f,c=PMR,O,1,f,c+ΔPMR->LR,O,2。
配置方式二:预定义或者配置至少两组可能的调整量对应关系,由网络侧指示激活其中一组调整值。
例如:基于如下表1配置至少两组可能的调整量:
表1
如上表1中,每一组调整量通过各自的索引(0,1)唯一指示,此后,网络侧可以指示该索引,以使第一设备使用该索引对应的一组调整量。
配置方式三:分别配置所述第一参数和所述第二参数中的静态功率控制参数,并通过TPC信令指示第一参数和所述第二参数中的动态功率控制参数。
在一些实施方式中,在所述第一信息包括所述第一参数和所述第二参数的情况下,所述第一设备获取第一信息包括:
第一设备获取第一配置信息;
所述第一设备接收传输功率控制TPC信令;
其中,所述第一配置信息用于配置第一静态功率控制参数和第二静态功率控制参数;所述TPC信令指示第一动态功率控制参数和第二动态功率控制参数;
所述第一参数包括所述第一静态功率控制参数和所述第一动态功率控制参数;所述第二参数包括所述第二静态功率控制参数和所述第二动态功率控制参数。
在一些实施方式中,上述第一配置信息表示静态的功率控制参数,例如:目标接收功率、参考信号、部分路损补偿因子等。
可选地,目标静态功率控制参数包括以下至少一项:
目标接收功率;
部分路损补偿因子;
目标接收功率和部分路损补偿因子构成的参数集合;
用于估计路径损耗的参考信号;
最大重传次数;
功率爬升的步长;
其中,所述目标静态功率控制参数包括所述第一静态功率控制参数和所述第二静态功率控制参数中的至少一项。
在一些实施方式中,在第一通信模块和第二通信模块具有同类型的信道/信号的情况下,第一配置信息可以是相关技术中对OFDM通信模块的功率控制参数的配置信息。例如:在对OFDM通信模块的功率控制参数的配置信息中添加字段,以通过相关技术中已有的字段指示第一静态功率控制参数,并通过添加字段指示第二静态功率控制参数。
例如:针对PRACH、PUSCH、SRS、PUCCH中的至少一种信道或信号,网络侧可以通过第一配置信息向第一设备至少指示以下参数组中的至少一项:
1)MR的目标接收功率p0-MR,LR的目标接收功率p0-LR;
可选地,第一配置信息可以指示MR的目标接收功率相较于给定阈值的偏置值,以及LR的目标接收功率相较于给定阈值的偏置值,比如Msg3 PUSCH的目标接收功率可以是相较于PRACH目标接收功率的偏置值。
2)MR的部分路损补偿因子alpha-MR,LR的部分路损补偿因子alpha-LR;
3)MR和LR的目标接收功率、部分路损补偿因子构成的参数集合;
4)MR估计第一路径损耗的参考信号,LR估计第二路径损耗的参考信号;
5)MR的最大重传次数,LR的最大重传次数;
6)MR功率爬升的步长,LR功率爬升的步长。
需要说明的是,上述每个参数组可以包括1个绝对值和1个相对值,例如:直接指示MR的参数值的绝对值,而LR的参数值以偏置值(Offset)的形式指示,那么LR实际采用的参数值为MR参数值和Offset之和/差/积/商。
在一些实施方式中,在第一通信模块和第二通信模块有至少一个信道/信号不一致的情况下,第一配置信息可以指示MR的至少1个信道/信号的第一静态功率控制参数,和LR的至少1个信道/信号的第二静态功率控制参数。
需要说明的是,本实施方式中,虽然MR和LR的功率控制参数是分开配置的,且二者的信号/信道类型不同,但是依然可以将MR或者LR的一个信道/信号的参数作为另外一个模块的某个信道/信号的参考参数,然后第一配置信息只需指示作为参考信道/信号的静态功率控制参数,以及另一个模块相对于该参考信道/信号的静态功率控制参数的偏置值。
在一些实施方式中,上述TPC信令用于指示动态的功率控制参数,如功率控制偏置值。
可选地,TPC信令可以是DCI中的TPC字段。
本实施方式中,通过TPC信令可以动态调整PUSCH、SRS或者PUCCH的功率,且根据不同的使用场景,TPC信令可以指示绝对的功率偏置值,也可以指示相对的功率偏置值,后者需要将所有相对功率偏置值累计起来才能进行功率控制。
可选地,目标动态功率控制参数包括以下至少一项:
第一功率偏置值和第一缩放因子,第二功率偏置值基于所述第一功率偏置值和所述第一缩放因子确定;
第二功率偏置值和第二缩放因子,第一功率偏置值基于所述第二功率偏置值和所述第二缩放因子确定;
第一标识,所述第一标识关联第一功率偏置值和第二功率偏置值;
第一功率偏置值和第二功率偏置值;
目标功率偏置值和第一指示信息,其中,所述第一指示信息用于指示所述目标功率偏置值为所述第一通信模块或所述第二通信模块的功率偏置值;
其中,所述目标动态功率控制参数包括所述第一动态功率控制参数和所述第二动态功率控制参数中的至少一项;所述第一功率偏置值为所述第一目标发射功率的偏置值;所述第二功率偏置值为所述第二目标发射功率的偏置值。
在一些实施方式中,为了将TPC信令用于调整两个模块的功率,可以采用以下方式中的至少一中来重新设计和解读TPC字段:
方式一:网络侧指示TPC字段中携带的功率偏置值应用于第一通信模块和第二通信模块中的哪一个,第一设备从TPC字段中解读出缩放因子s,并基于TPC字段中的功率偏置值与缩放因子s进行求和/差/积/商等运算中的至少一项,以得到第一通信模块和第二通信模块中的另一个通信模块的功率偏置值。
可选地,上述TPC字段中携带的功率偏置值可以指示绝对的功率偏置值,或者指示相对的功率偏置值,在此不作具体限定。
方式二:可以通过网络侧配置或协议约定的方式,事先将第一标识与第一功率偏置值和第二功率偏置值关联,并通过TPC字段携带第一标识,这样,第一设备可以基于一维的TPC字段基于新的解读方式获取二维的信息,即解读出第一功率偏置值和第二功率偏置值。
例如:网络侧通过以下表2配置第一标识与第一功率偏置值和第二功率偏置值之间的关联信息:
表2
如上表2中,TPC字段携带第一标识(即0或1),第一设备根据TPC字段携带的第一标识确定网络侧指示的LR绝对功率偏置值和MR绝对功率偏置值,或者,LR相对功率偏置值和MR相对功率偏置值,或者,LR绝对功率偏置值和MR相对功率偏置值,或者,LR相对功率偏置值和MR绝对功率偏置值。
方式三:对TPC字段进行设计,是指能够指示2个TPC值,该2个TPC值分别为第一通信模块和第二通信模块的TPC值。
可选地,TPC包含两个字段,分别为{TPC 1,TPC 2},其中TPC 1作用于MR或LR,TPC 2作用于另外一个模块。
可选地,上述TPC 1和TPC 2的解读表格可以相同,也可以不同,在此不作具体限定。
可选地,TPC 2指示的可以是相对于TPC 1的偏置值。
方式四:TPC字段可以仅作用于MR和LR中的一个或两个,且可以通过显示或隐式的方式指示该TPC字段作用的通信模块。
一种隐式的指示方式为:假设TPC所在的DCI为仅调度MR和LR中某一个模块的DCI,那么该TPC值仅作用于该模块。
一种显示的指示方式为:在DCI中与TPC字段不同的另一个字段指示TPC值作用的模块,比如该另一个字段为:TPC_module,TPC_module=00表示作用的是LR,TPC_module=01表示作用的是MR,TPC_module=10表示作用于LR和MR。
本实施方式中,可以通过对TPC字段的设计或解读方式设计,从TPC字段中解读出目标动态功率控制参数。
值得提出的是,在NR协议中,最大发送功率由无线资源控制(Radio Resource Control,RRC)参数P-Max确定,但是NR只有一种通信模块。而本申请实施例中,第一设备具有两个通信模块,此时,需要对两个通信模块的最大发送功率进行限制。
作为一种可选的实施方式,所述第一目标发射功率和所述第二目标发射功率满足以下至少一项条件:
第一条件:所述第一目标发射功率小于或等于所述第一最大发送功率,且所述第二目标发射功率小于或等于所述第二最大发送功率;
第二条件:所述第一目标发射功率与所述第二目标发射功率之和小于或等于目标最大发送功率,所述目标最大发送功率为所述第一通信模块和所述第二通信模块的最大总发送功率。
在一些实施方式中,可以为MR和LR设置各自独立的最大发送功率,此时,MR的目标发射功率和LR的目标发射功率需要小于或等于各自对应的最大发送功率。
可选地,网络侧可以指示一个最大发送功率P-Max和一个缩放值P-Scale,此时,P-Max可以作为MR和LR中的一个的最大发送功率,且MR和LR中的另一个的最大发送功率可以通过将P-Scale和P-Max进行运算(如求和/差/积/商中的至少一项)得到。
在另一些实施方式中,可以为第一设备设置最大的发送功率,此时,MR和LR的目标发射功率之和小于或等于第一设备的最大的发送功率。
在一些实施方式中,在所述第一目标发射功率与所述第二目标发射功率不满足所述第二条件的情况下,所述方法还包括:
所述第一设备获取第二指示信息,所述第二指示信息用于指示所述第一通信模块和所述第二通信模块的发送功率分配方法;
所述第一设备根据所述第二指示信息和所述目标最大发送功率,更新所述第一目标发送功率和所述第二目标发送功率,其中,更新后的所述第一目标发送功率和第二目标发送功率满足所述第二条件。
本实施方式中,通过第二指示信息指示LR和MR的发送功率分配方法,以避免LR和MR的目标发射功率之和超过第一设备的最大发送功率。
可选地,所述第二指示信息用于指示以下任一项:
所述第一目标发送功率和所述第二目标发送功率分别在所述第一设备的总发送功率中的占比;或者,
在所述第一通信模块的目标发送功率和第二通信模块的目标发送功率之和大于所述目标最大发送功率的情况下,优先降低所述第一通信模块或所述第二通信模块的目标发送功率,以使所述第一目标发送功率和所述第二目标发送功率之和小于或等于所述目标最大发送功率。
本实施方式中,第二指示信息可以采用以下方式中的任一种约束MR和LR中至少一项的目标发射功率:
1)定义MR、LR至少一者的功率占比,如此,可以按照功率占比确定MR和LR中至少一者的发射功率在第一设备的最大的发送功率中的占比。例如:限制LR的最大发送功率小于或等于第一设备的最大的发送功率的20%,剩余的第一设备的最大的发送功率的80%为MR的最大发送功率。
2)当基于功率控制计算公式计算得到的MR和LR的目标发射功率之和大于第一设备的最大的发送功率的情况,可以通过第二指示信息指示如何降低第一设备的发射功率,例如:对MR和LR的目标发射功率进行缩放,以使MR和LR的目标发射功率之和小于或等于所述目标最大发送功率,或者,可以优先保证MR或LR的发射功率不变,只缩小另外一个通信模块的发射功率以使第一设备的总发射功率不小于或等于所述目标最大发送功率。
可选地,上述MR和LR中至少一项的最大发送功率的相关参数(如MR的最大发送功率、LR的最大发送功率、缩放值P-Scale、最大发送功率P-Max、第二指示信息等),可以基于RRC或者其他信令指示。
在本申请实施例中,对于同时具有主通信模块(即第一通信模块)和极低功耗通信模块(即第二通信模块)的第一设备,可以基于第一信息对第一设备上的两个通信模块进行功率控制,使得第一设备上基于主通信模块发送的第一信号的第一目标发射功率和第一设备上基于极低功耗通信模块发送的第二信号的第二目标发射功率更加灵活,提升了第一设备的通信性能。
参阅图12,本申请实施例还提供另一种发射功率控制方法,该另一种发射功率控制方法的执行主体为第二设备。如图12所示,该第二设备执行的另一种发射功率控制方法包括以下步骤:
步骤121、第二设备向第一设备发送第一信息,所述第一设备包括第一通信模块和第二通信模块,所述第二通信模块为极低功耗通信模块;所述第一信息用于确定所述第一通信模块对第一信号的第一目标发射功率和所述第二通信模块对第二信号的第二目标发射功率。
在一些实施方式中,第二设备可以是用于向第一设备配置或指示第一信息的设备,例如:网络侧设备。该网络侧设备可以是接入网设备或核心网设备,其中,在所述第四设备包括核心网设备的情况下,可以利用核心网中的应用服务器获取目标接收功率等需求信息,或者,利用核心网中的计算功能计算目标发射功率。
需要说明的是,上述第一信息、第一设备、第一参数、第一通信模块、第二通信模块、第一信号、第一目标发射功率、第二信号、第二目标发射功率与第一设备侧方法实施例中的第一信息、第一设备、第一参数、第一通信模块、第二通信模块、第一信号、第一目标发射功率、第二信号、第二目标发射功率具有相同的含义和作用,在此不再赘述。
本申请实施例与如第一设备侧方法实施例相对应,其中,第一设备侧方法实施例用于确定第一设备上两个通信模块的目标发射功率,第二设备侧方法实施例能够基于第一信息控制对第一设备上的两个通信模块的发射功率进行控制。
在一些实施方式中,所述第一信息包括以下至少一项:
第一通信模块的第一目标发射功率和第一调整量,所述第二目标发射功率基于所述第一目标发射功率和所述第一调整量确定;
第一通信模块的第一参数和第二调整量,第二参数基于所述第一参数和所述第二调整量确定;
第二通信模块的第二目标发射功率和第三调整量,所述第一目标发射功率基于所述第二目标发射功率和所述第三调整量确定;
第二通信模块的第二参数和第四调整量,第一参数基于所述第二参数和所述第四调整量确定;
第一参数和第二参数;
其中,所述第一参数包括用于确定所述第一目标发射功率的参数;所述第二参数包括用于确定所述第二目标发射功率的参数。
在一些实施方式中,所述第一参数包括所述第一通信模块对应的以下参数中至少一项或至少两项的组合:
第一目标接收功率、第一路径损耗、第一最大发送功率、所述第一信号的类型、所述第一信号中一个符号的时间长度、所述第一信号中一个符号的频域宽度、第一闭环功率控制的偏置值、所述第一信号的占用带宽B的RB数量、所述第一信号的每一个RB包含的子载波数量、所述第一信号中每个符号平均承载的比特数量、第一部分路损补偿因子;
其中,所述第一路径损耗为所述第一设备和第三设备之间的路径损耗,所述第三设备为所述第一信号的接收端设备;
或者,
所述第二参数包括所述第二通信模块对应的以下参数中至少一项或至少两项的组合:
第二目标接收功率、第二路径损耗、第二最大发送功率、所述第二信号的类型、所述第二信号中一个符号的时间长度、所述第二信号中一个符号的频域宽度、第二闭环功率控制的偏置值、所述第二信号的占用带宽B的RB数量、所述第二信号的每一个RB包含的子载波数量、所述第二信号中每个符号平均承载的比特数量、第二部分路损补偿因子;
其中,所述第二路径损耗为所述第一设备和第四设备之间的路径损耗,所述第四设备为所述第二信号的接收端设备。
在一些实施方式中,所述方法还包括:
所述第二设备向所述第一设备发送第一关联信息;
其中,在所述第一信息包括所述第一目标发射功率和所述第一调整量的情况下,所述第一关联信息用于指示所述第一目标发射功率、所述第一调整量和所述第二目标发射功率之间的关联关系;
在所述第一信息包括所述第一参数和所述第二调整量的情况下,所述第一关联信息用于指示所述第一参数、所述第二调整量和所述第二参数之间的关联关系;
在所述第一信息包括所述第二目标发射功率和所述第三调整量的情况下,所述第一关联信息用于指示所述第二目标发射功率、所述第三调整量和所述第一目标发射功率之间的关联关系;
在所述第一信息包括所述第二参数和所述第四调整量的情况下,所述第一关联信息用于指示所述第二参数、所述第四调整量和所述第一目标发射功率之间的关联关系。
在一些实施方式中,在所述第一通信模块与所述第二通信模块的信号传输带宽不同的情况下:
所述第二调整量包括第一功率调整量,所述第一功率调整量用于指示由所述第一通信模块的信号传输带宽转换为所述第二通信模块的信号传输带宽所引起的功率调整;或者,
所述第四调整量包括第二功率调整量,所述第二功率调整量用于指示由所述第二通信模块的信号传输带宽转换为所述第一通信模块的信号传输带宽所引起的功率调整。
在一些实施方式中,在所述第一信号为正交频分复用OFDM信号,所述第二信号为单载波信号,且所述第二信号采用OFDM的带宽定义来计算第二目标发送功率的情况下:
所述第一功率调整量为:
所述第二功率调整量为:
其中,所述第二信号的占用带宽B的RB数量;所述第一信号的占用带宽B的RB数量。
在一些实施方式中,在所述第一信号为正交频分复用OFDM信号,所述第二信号为单载波信号,且所述第二信号采用单载波的带宽定义来计算第二目标发送功率的情况下:
所述第一功率调整量为:
所述第二功率调整量为:
其中,表示所述第一信号的占用带宽B的RB数量。
在一些实施方式中,在所述第一信息包括所述第一参数和所述第二参数的情况下,所述第二设备向第一设备发送第一信息包括:
所述第二设备向第一设备发送第一配置信息;
所述第二设备向所述第一设备发送传输功率控制TPC信令;
其中,所述第一配置信息用于配置第一静态功率控制参数和第二静态功率控制参数;所述TPC信令指示第一动态功率控制参数和第二动态功率控制参数;
所述第一参数包括所述第一静态功率控制参数和所述第一动态功率控制参数;所述第二参数包括所述第二静态功率控制参数和所述第二动态功率控制参数。
在一些实施方式中,目标静态功率控制参数包括以下至少一项:
目标接收功率;
部分路损补偿因子;
目标接收功率和部分路损补偿因子构成的参数集合;
用于估计路径损耗的参考信号;
最大重传次数;
功率爬升的步长;
其中,所述目标静态功率控制参数包括所述第一静态功率控制参数和所述第二静态功率控制参数中的至少一项。
在一些实施方式中,目标动态功率控制参数包括以下至少一项:
第一功率偏置值和第一缩放因子,第二功率偏置值基于所述第一功率偏置值和所述第一缩放因子确定;
第二功率偏置值和第二缩放因子,第一功率偏置值基于所述第二功率偏置值和所述第二缩放因子确定;
第一标识,所述第一标识关联第一功率偏置值和第二功率偏置值;
第一功率偏置值和第二功率偏置值;
目标功率偏置值和第一指示信息,其中,所述第一指示信息用于指示所述目标功率偏置值为所述第一通信模块或所述第二通信模块的功率偏置值;
其中,所述目标动态功率控制参数包括所述第一动态功率控制参数和所述第二动态功率控制参数中的至少一项;所述第一功率偏置值为所述第一目标发射功率的偏置值;所述第二功率偏置值为所述第二目标发射功率的偏置值。
在一些实施方式中,所述第一目标发射功率和所述第二目标发射功率满足以下至少一项条件:
第一条件:所述第一目标发射功率小于或等于所述第一最大发送功率,且所述第二目标发射功率小于或等于所述第二最大发送功率;
第二条件:所述第一目标发射功率与所述第二目标发射功率之和小于或等于目标最大发送功率,所述目标最大发送功率为所述第一通信模块和所述第二通信模块的最大总发送功率。
在一些实施方式中,所述方法还包括:
所述第二设备向所述第一设备发送第二指示信息,所述第二指示信息用于指示所述第一通信模块和所述第二通信模块的发送功率分配方法。
在一些实施方式中,所述第二指示信息用于指示以下任一项:
所述第一目标发送功率和所述第二目标发送功率分别在所述第二设备的总发送功率中的占比;或者,
在所述第一通信模块的目标发送功率和第二通信模块的目标发送功率之和大于所述目标最大发送功率的情况下,优先降低所述第一通信模块或所述第二通信模块的目标发送功率,以使所述第一目标发送功率和所述第二目标发送功率之和小于或等于所述目标最大发送功率。
本申请实施例中,第二设备执行的步骤与第一设备侧方法实施例中第一设备执行的步骤相对应,且两者相互配合,以共同实现对第一设备上的两个通信模块的上行发射功率进行控制和路径损耗补偿。
本申请实施例提供的发射功率控制方法,执行主体可以为发射功率控制装置。本申请实施例中以发射功率控制装置执行发射功率控制方法为例,说明本申请实施例提供的发射功率控制装置。
参照图13,本申请实施例还提供了一种发射功率控制装置,应用于第一设备,如图13所示,该发射功率控制装置1300包括:
第一获取模块1301,用于获取第一信息,所述第一设备包括第一通信模块和第二通信模块,所述第二通信模块为极低功耗通信模块;
第一确定模块1302,用于根据所述第一信息,确定所述第一通信模块的第一目标发射功率和所述第二通信模块的第二目标发射功率;其中,所述第一目标发射功率用于所述第一通信模块发送第一信号,所述第二目标发射功率用于所述第二通信模块发送第二信号。
在一些实施方式中,所述第一信息包括以下至少一项:
所述第一通信模块的第一目标发射功率和第一调整量,所述第二目标发射功率基于所述第一目标发射功率和所述第一调整量确定;
所述第一通信模块的第一参数和第二调整量,第二参数基于所述第一参数和所述第二调整量确定;
所述第二通信模块的第二目标发射功率和第三调整量,所述第一目标发射功率基于所述第二目标发射功率和所述第三调整量确定;
所述第二通信模块的第二参数和第四调整量,第一参数基于所述第二参数和所述第四调整量确定;
第一参数和第二参数;
其中,所述第一参数包括用于确定所述第一目标发射功率的参数;所述第二参数包括用于确定所述第二目标发射功率的参数。
在一些实施方式中,所述第一参数包括所述第一通信模块对应的以下参数中至少一项或至少两项的组合:
第一目标接收功率、第一路径损耗、第一最大发送功率、所述第一信号的类型、第一闭环功率控制的偏置值、所述第一信号的占用带宽的RB数量、所述第一信号的每一个RB包含的子载波数量、所述第一信号中每个资源元素RE平均承载的比特数量、第一部分路损补偿因子;
其中,所述第一路径损耗为所述第一设备和第三设备之间的路径损耗,所述第三设备为所述第一信号的接收端设备;
或者,
所述第二参数包括所述第二通信模块对应的以下参数中至少一项或至少两项的组合:
第二目标接收功率、第二路径损耗、第二最大发送功率、所述第二信号的类型、所述第二信号中一个符号的时间长度、所述第二信号中一个符号的频域宽度、第二闭环功率控制的偏置值、所述第二信号的占用带宽的RB数量、所述第二信号的每一个RB包含的子载波数量、所述第二信号中每个符号平均承载的比特数量、第二部分路损补偿因子;
其中,所述第二路径损耗为所述第一设备和第四设备之间的路径损耗,所述第四设备为所述第二信号的接收端设备。
在一些实施方式中,发射功率控制装置1300还包括:
第二获取模块,用于获取第一关联信息;
在所述第一信息包括所述第一目标发射功率和所述第一调整量的情况下,所述第一关联信息用于指示所述第一目标发射功率、所述第一调整量和所述第二目标发射功率之间的关联关系;
在所述第一信息包括所述第一参数和所述第二调整量的情况下,所述第一关联信息用于指示所述第一参数、所述第二调整量和所述第二参数之间的关联关系;
在所述第一信息包括所述第二目标发射功率和所述第三调整量的情况下,所述第一关联信息用于指示所述第二目标发射功率、所述第三调整量和所述第一目标发射功率之间的关联关系;
在所述第一信息包括所述第二参数和所述第四调整量的情况下,所述第一关联信息用于指示所述第二参数、所述第四调整量和所述第一目标发射功率之间的关联关系。
在一些实施方式中,发射功率控制装置1300还包括:
路径损耗测量模块,用于利用所述第一通信模块对来自所述第四设备的参考信号进行测量,得到第三路径损耗;
第二确定模块,用于根据所述参考信号和所述第二信号的差异,确定路径损耗偏置值;
第三确定模块,用于根据所述第三路径损耗和所述路径损耗偏置值,确定所述第二路径损耗。
在一些实施方式中,在所述第一通信模块与所述第二通信模块的信号传输带宽不同的情况下:
所述第二调整量包括第一功率调整量,所述第一功率调整量用于指示由所述第一通信模块的信号传输带宽转换为所述第二通信模块的信号传输带宽所引起的功率调整;或者,
所述第四调整量包括第二功率调整量,所述第二功率调整量用于指示由所述第二通信模块的信号传输带宽转换为所述第一通信模块的信号传输带宽所引起的功率调整。
在一些实施方式中,在所述第一信号为正交频分复用OFDM信号,所述第二信号为单载波信号,且所述第二信号采用OFDM的带宽定义来计算第二目标发送功率的情况下:
所述第一功率调整量为:
所述第二功率调整量为:
其中,所述第二信号的占用带宽B的RB数量;所述第一信号的占用带宽B的RB数量。
在一些实施方式中,在所述第一信号为正交频分复用OFDM信号,所述第二信号为单载波信号,且所述第二信号采用单载波的带宽定义来计算第二目标发送功率的情况下:
所述第一功率调整量为:
所述第二功率调整量为:
其中,表示所述第一信号的占用带宽B的RB数量。
在一些实施方式中,在所述第一通信模块与所述第二通信模块的信号传输格式不同的情况下:
所述第二调整量包括第三功率调整量,所述第三功率调整量用于指示由所述第一通信模块的信号传输格式转换为所述第二通信模块的信号传输格式所引起的功率调整;或者,
所述第四调整量包括第四功率调整量,所述第四功率调整量用于指示由所述第二通信模块的信号传输格式转换为所述第一通信模块的信号传输格式所引起的功率调整。
在一些实施方式中,所述第三功率调整量包括:ΔLR,TF-ΔMR,TF;
所述第四功率调整量包括:ΔMR,TF-ΔLR,TF;
其中,ΔMR,TF表示所述第一通信模块在每个资源元素RE所需的发送功率;ΔLR,TF表示所述第二通信模块在每个RE所需的发送功率;
在所述第一信号为正交频分复用OFDM信号,所述第二信号为单载波信号,且所述第二信号采用OFDM的带宽定义来计算第二目标发送功率的情况下:
在所述第一信号为正交频分复用OFDM信号,所述第二信号为单载波信号,且所述第二信号采用单载波的带宽定义来计算第二目标发送功率的情况下:
其中,γ'表示所述第二信号中每个符号平均承载的比特数量;表示1个RB包含的OFDM子载波个数;表示所述第二信号的占用带宽B的RB数量;β'0和β'1为两个偏置值;Ts表示一个单载波符号的时间长度;B表示一个单载波符号的频域宽度;β'2和β'3为两个偏置值。
在一些实施方式中,在所述第一信息包括所述第一参数和所述第二参数的情况下,所述第一获取模块1301包括:
第一获取单元,用于获取第一配置信息;
第一接收单元,用于接收传输功率控制TPC信令;
其中,所述第一配置信息用于配置第一静态功率控制参数和第二静态功率控制参数;所述TPC信令指示第一动态功率控制参数和第二动态功率控制参数;
所述第一参数包括所述第一静态功率控制参数和所述第一动态功率控制参数;所述第二参数包括所述第二静态功率控制参数和所述第二动态功率控制参数。
在一些实施方式中,目标静态功率控制参数包括以下至少一项:
目标接收功率;
部分路损补偿因子;
目标接收功率和部分路损补偿因子构成的参数集合;
用于估计路径损耗的参考信号;
最大重传次数;
功率爬升的步长;
其中,所述目标静态功率控制参数包括所述第一静态功率控制参数和所述第二静态功率控制参数中的至少一项。
在一些实施方式中,目标动态功率控制参数包括以下至少一项:
第一功率偏置值和第一缩放因子,第二功率偏置值基于所述第一功率偏置值和所述第一缩放因子确定;
第二功率偏置值和第二缩放因子,第一功率偏置值基于所述第二功率偏置值和所述第二缩放因子确定;
第一标识,所述第一标识关联第一功率偏置值和第二功率偏置值;
第一功率偏置值和第二功率偏置值;
目标功率偏置值和第一指示信息,其中,所述第一指示信息用于指示所述目标功率偏置值为所述第一通信模块或所述第二通信模块的功率偏置值;
其中,所述目标动态功率控制参数包括所述第一动态功率控制参数和所述第二动态功率控制参数中的至少一项;所述第一功率偏置值为所述第一目标发射功率的偏置值;所述第二功率偏置值为所述第二目标发射功率的偏置值。
在一些实施方式中,所述第一目标发射功率和所述第二目标发射功率满足以下至少一项条件:
第一条件:所述第一目标发射功率小于或等于所述第一最大发送功率,且所述第二目标发射功率小于或等于所述第二最大发送功率;
第二条件:所述第一目标发射功率与所述第二目标发射功率之和小于或等于目标最大发送功率,所述目标最大发送功率为所述第一通信模块和所述第二通信模块的最大总发送功率。
在一些实施方式中,在所述第一目标发射功率与所述第二目标发射功率不满足所述第二条件的情况下,发射功率控制装置1300还包括:
第三获取模块,用于获取第二指示信息,所述第二指示信息用于指示所述第一通信模块和所述第二通信模块的发送功率分配方法;
第四确定模块,用于根据所述第二指示信息和所述目标最大发送功率,更新所述第一目标发送功率和所述第二目标发送功率,其中,更新后的所述第一目标发送功率和第二目标发送功率满足所述第二条件。
在一些实施方式中,所述第二指示信息用于指示以下任一项:
所述第一目标发送功率和所述第二目标发送功率分别在所述第一设备的总发送功率中的占比;或者,
在所述第一通信模块的目标发送功率和第二通信模块的目标发送功率之和大于所述目标最大发送功率的情况下,优先降低所述第一通信模块或所述第二通信模块的目标发送功率,以使所述第一目标发送功率和所述第二目标发送功率之和小于或等于所述目标最大发送功率。
本申请实施例提供的发射功率控制装置1300能够实现第一设备侧方法实施例中的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
参照图14,本申请实施例还提供了另一种发射功率控制装置1400,应用于第二设备。
如图14所示,该发射功率控制装置1400包括:
第一发送模块1401,用于向第一设备发送第一信息,所述第一设备包括第一通信模块和第二通信模块,所述第二通信模块为极低功耗通信模块;所述第一信息用于确定所述第一通信模块对第一信号的第一目标发射功率和所述第二通信模块对第二信号的第二目标发射功率。
在一些实施方式中,所述第一信息包括以下至少一项:
第一通信模块的第一目标发射功率和第一调整量,所述第二目标发射功率基于所述第一目标发射功率和所述第一调整量确定;
第一通信模块的第一参数和第二调整量,第二参数基于所述第一参数和所述第二调整量确定;
第二通信模块的第二目标发射功率和第三调整量,所述第一目标发射功率基于所述第二目标发射功率和所述第三调整量确定;
第二通信模块的第二参数和第四调整量,第一参数基于所述第二参数和所述第四调整量确定;
第一参数和第二参数;
其中,所述第一参数包括用于确定所述第一目标发射功率的参数;所述第二参数包括用于确定所述第二目标发射功率的参数。
在一些实施方式中,所述第一参数包括所述第一通信模块对应的以下参数中至少一项或至少两项的组合:
第一目标接收功率、第一路径损耗、第一最大发送功率、所述第一信号的类型、所述第一信号中一个符号的时间长度、所述第一信号中一个符号的频域宽度、第一闭环功率控制的偏置值、所述第一信号的占用带宽B的RB数量、所述第一信号的每一个RB包含的子载波数量、所述第一信号中每个符号平均承载的比特数量、第一部分路损补偿因子;
其中,所述第一路径损耗为所述第一设备和第三设备之间的路径损耗,所述第三设备为所述第一信号的接收端设备;
或者,
所述第二参数包括所述第二通信模块对应的以下参数中至少一项或至少两项的组合:
第二目标接收功率、第二路径损耗、第二最大发送功率、所述第二信号的类型、所述第二信号中一个符号的时间长度、所述第二信号中一个符号的频域宽度、第二闭环功率控制的偏置值、所述第二信号的占用带宽B的RB数量、所述第二信号的每一个RB包含的子载波数量、所述第二信号中每个符号平均承载的比特数量、第二部分路损补偿因子;
其中,所述第二路径损耗为所述第一设备和第四设备之间的路径损耗,所述第四设备为所述第二信号的接收端设备。
在一些实施方式中,发射功率控制装置1400还包括:
第二发送模块,用于向所述第一设备发送第一关联信息;
其中,在所述第一信息包括所述第一目标发射功率和所述第一调整量的情况下,所述第一关联信息用于指示所述第一目标发射功率、所述第一调整量和所述第二目标发射功率之间的关联关系;
在所述第一信息包括所述第一参数和所述第二调整量的情况下,所述第一关联信息用于指示所述第一参数、所述第二调整量和所述第二参数之间的关联关系;
在所述第一信息包括所述第二目标发射功率和所述第三调整量的情况下,所述第一关联信息用于指示所述第二目标发射功率、所述第三调整量和所述第一目标发射功率之间的关联关系;
在所述第一信息包括所述第二参数和所述第四调整量的情况下,所述第一关联信息用于指示所述第二参数、所述第四调整量和所述第一目标发射功率之间的关联关系。
在一些实施方式中,在所述第一通信模块与所述第二通信模块的信号传输带宽不同的情况下:
所述第二调整量包括第一功率调整量,所述第一功率调整量用于指示由所述第一通信模块的信号传输带宽转换为所述第二通信模块的信号传输带宽所引起的功率调整;或者,
所述第四调整量包括第二功率调整量,所述第二功率调整量用于指示由所述第二通信模块的信号传输带宽转换为所述第一通信模块的信号传输带宽所引起的功率调整。
在一些实施方式中,在所述第一信号为正交频分复用OFDM信号,所述第二信号为单载波信号,且所述第二信号采用OFDM的带宽定义来计算第二目标发送功率的情况下:
所述第一功率调整量为:
所述第二功率调整量为:
其中,所述第二信号的占用带宽B的RB数量;所述第一信号的占用带宽B的RB数量。
在一些实施方式中,在所述第一信号为正交频分复用OFDM信号,所述第二信号为单载波信号,且所述第二信号采用单载波的带宽定义来计算第二目标发送功率的情况下:
所述第一功率调整量为:
所述第二功率调整量为:
其中,表示所述第一信号的占用带宽B的RB数量。
在一些实施方式中,在所述第一信息包括所述第一参数和所述第二参数的情况下,第一发送模块1401,包括:
第一发送单元,用于向第一设备发送第一配置信息;
第二发送单元,用于向所述第一设备发送传输功率控制TPC信令;
其中,所述第一配置信息用于配置第一静态功率控制参数和第二静态功率控制参数;所述TPC信令指示第一动态功率控制参数和第二动态功率控制参数;
所述第一参数包括所述第一静态功率控制参数和所述第一动态功率控制参数;所述第二参数包括所述第二静态功率控制参数和所述第二动态功率控制参数。
在一些实施方式中,目标静态功率控制参数包括以下至少一项:
目标接收功率;
部分路损补偿因子;
目标接收功率和部分路损补偿因子构成的参数集合;
用于估计路径损耗的参考信号;
最大重传次数;
功率爬升的步长;
其中,所述目标静态功率控制参数包括所述第一静态功率控制参数和所述第二静态功率控制参数中的至少一项。
在一些实施方式中,目标动态功率控制参数包括以下至少一项:
第一功率偏置值和第一缩放因子,第二功率偏置值基于所述第一功率偏置值和所述第一缩放因子确定;
第二功率偏置值和第二缩放因子,第一功率偏置值基于所述第二功率偏置值和所述第二缩放因子确定;
第一标识,所述第一标识关联第一功率偏置值和第二功率偏置值;
第一功率偏置值和第二功率偏置值;
目标功率偏置值和第一指示信息,其中,所述第一指示信息用于指示所述目标功率偏置值为所述第一通信模块或所述第二通信模块的功率偏置值;
其中,所述目标动态功率控制参数包括所述第一动态功率控制参数和所述第二动态功率控制参数中的至少一项;所述第一功率偏置值为所述第一目标发射功率的偏置值;所述第二功率偏置值为所述第二目标发射功率的偏置值。
在一些实施方式中,所述第一目标发射功率和所述第二目标发射功率满足以下至少一项条件:
第一条件:所述第一目标发射功率小于或等于所述第一最大发送功率,且所述第二目标发射功率小于或等于所述第二最大发送功率;
第二条件:所述第一目标发射功率与所述第二目标发射功率之和小于或等于目标最大发送功率,所述目标最大发送功率为所述第一通信模块和所述第二通信模块的最大总发送功率。
在一些实施方式中,发射功率控制装置1400还包括:
第三发送模块,用于向所述第一设备发送第二指示信息,所述第二指示信息用于指示所述第一通信模块和所述第二通信模块的发送功率分配方法。
在一些实施方式中,所述第二指示信息用于指示以下任一项:
所述第一目标发送功率和所述第二目标发送功率分别在所述第二设备的总发送功率中的占比;或者,
在所述第一通信模块的目标发送功率和第二通信模块的目标发送功率之和大于所述目标最大发送功率的情况下,优先降低所述第一通信模块或所述第二通信模块的目标发送功率,以使所述第一目标发送功率和所述第二目标发送功率之和小于或等于所述目标最大发送功率。
本申请实施例提供的发射功率控制装置1400能够实现第二设备侧方法实施例中的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
可选地,如图15所示,本申请实施例还提供一种通信设备1500,包括处理器1501和存储器1502,存储器1502上存储有可在所述处理器1501上运行的程序或指令,例如:该通信设备1500作为第一设备时,该程序或指令被处理器1501执行时实现前述第一设备侧方法实施例的各个步骤,且能达到相同的技术效果;该通信设备1500作为第二设备时,该程序或指令被处理器1501执行时实现前述第二设备侧方法实施例的各个步骤,且能达到相同的技术效果,为避免重复,这里不再赘述。
本申请实施例还提供一种通信设备,包括处理器及通信接口;
在所述通信设备为第一设备的情况下,所述处理器用于:获取第一信息,所述第一设备包括第一通信模块和第二通信模块,所述第二通信模块为极低功耗通信模块;根据所述第一信息,确定所述第一通信模块的第一目标发射功率和所述第二通信模块的第二目标发射功率;其中,所述第一目标发射功率用于所述第一通信模块发送第一信号,所述第二目标发射功率用于所述第二通信模块发送第二信号。
在所述通信设备为第二设备的情况下,所述通信接口用于向第一设备发送第一信息,所述第一设备包括第一通信模块和第二通信模块,所述第二通信模块为极低功耗通信模块;所述第一信息用于确定所述第一通信模块对第一信号的第一目标发射功率和所述第二通信模块对第二信号的第二目标发射功率。
该通信设备实施例与前述第一设备侧和第二设备侧的发射功率控制方法实施例对应,上述方法实施例的各个实施过程和实现方式均可适用于该通信设备实施例中,且能达到相同的技术效果。
在一些实施方式中,图16为实现本申请实施例的一种终端的硬件结构示意图。
该终端1600包括但不限于:射频单元1601、网络模块1602、音频输出单元1603、输入单元1604、传感器1605、显示单元1606、用户输入单元1607、接口单元1608、存储器1609以及处理器1610等中的至少部分部件。
本领域技术人员可以理解,终端1600还可以包括给各个部件供电的电源(比如电池),电源可以通过电源管理系统与处理器1610逻辑相连,从而通过电源管理系统实现管理充电、放电以及功耗管理等功能。图16中示出的终端结构并不构成对终端的限定,终端可以包括比图示更多或更少的部件,或者组合某些部件,或者不同的部件布置,在此不再赘述。
应理解的是,本申请实施例中,输入单元1604可以包括图形处理器(Graphics Processing Unit,GPU)16041和麦克风16042,图形处理器16041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元1606可包括显示面板16061,可以采用液晶显示器、有机发光二极管等形式来配置显示面板16061。用户输入单元1607包括触控面板16071以及其他输入设备16072中的至少一种。触控面板16071,也称为触摸屏。触控面板16071可包括触摸检测装置和触摸控制器两个部分。其他输入设备16072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆,在此不再赘述。
本申请实施例中,射频单元1601接收来自网络侧设备的下行数据后,可以传输给处理器1610进行处理;另外,射频单元1601可以向网络侧设备发送上行数据。通常,射频单元1601包括但不限于天线、放大器、收发信机、耦合器、低噪声放大器、双工器等。
存储器1609可用于存储软件程序或指令以及各种数据。存储器1609可主要包括存储程序或指令的第一存储区和存储数据的第二存储区,其中,第一存储区可存储操作系统、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外,存储器1609可以包括易失性存储器或非易失性存储器。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synch link DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DRRAM)。本申请实施例中的存储器1609包括但不限于这些和任意其它适合类型的存储器。
处理器1610可包括一个或多个处理单元;可选地,处理器1610集成应用处理器和调制解调处理器,其中,应用处理器主要处理涉及操作系统、用户界面和应用程序等的操作,调制解调处理器主要处理无线通信信号,如基带处理器。可以理解的是,上述调制解调处理器也可以不集成到处理器1610中。
其中,终端1600作为第一设备,处理器1610,用于获取第一信息,所述第一设备包括第一通信模块和第二通信模块,所述第二通信模块为极低功耗通信模块;
处理器1610,还用于根据所述第一信息,确定所述第一通信模块的第一目标发射功率和所述第二通信模块的第二目标发射功率;其中,所述第一目标发射功率用于所述第一通信模块发送第一信号,所述第二目标发射功率用于所述第二通信模块发送第二信号。
在一些实施方式中,所述第一信息包括以下至少一项:
所述第一通信模块的第一目标发射功率和第一调整量,所述第二目标发射功率基于所述第一目标发射功率和所述第一调整量确定;
所述第一通信模块的第一参数和第二调整量,第二参数基于所述第一参数和所述第二调整量确定;
所述第二通信模块的第二目标发射功率和第三调整量,所述第一目标发射功率基于所述第二目标发射功率和所述第三调整量确定;
所述第二通信模块的第二参数和第四调整量,第一参数基于所述第二参数和所述第四调整量确定;
第一参数和第二参数;
其中,所述第一参数包括用于确定所述第一目标发射功率的参数;所述第二参数包括用于确定所述第二目标发射功率的参数。
在一些实施方式中,所述第一参数包括所述第一通信模块对应的以下参数中至少一项或至少两项的组合:
第一目标接收功率、第一路径损耗、第一最大发送功率、所述第一信号的类型、第一闭环功率控制的偏置值、所述第一信号的占用带宽的RB数量、所述第一信号的每一个RB包含的子载波数量、所述第一信号中每个资源元素RE平均承载的比特数量、第一部分路损补偿因子;
其中,所述第一路径损耗为所述第一设备和第三设备之间的路径损耗,所述第三设备为所述第一信号的接收端设备;
或者,
所述第二参数包括所述第二通信模块对应的以下参数中至少一项或至少两项的组合:
第二目标接收功率、第二路径损耗、第二最大发送功率、所述第二信号的类型、所述第二信号中一个符号的时间长度、所述第二信号中一个符号的频域宽度、第二闭环功率控制的偏置值、所述第二信号的占用带宽的RB数量、所述第二信号的每一个RB包含的子载波数量、所述第二信号中每个符号平均承载的比特数量、第二部分路损补偿因子;
其中,所述第二路径损耗为所述第一设备和第四设备之间的路径损耗,所述第四设备为所述第二信号的接收端设备。
在一些实施方式中,射频单元1601,用于:
获取第一关联信息;
其中,在所述第一信息包括所述第一目标发射功率和所述第一调整量的情况下,所述第一关联信息用于指示所述第一目标发射功率、所述第一调整量和所述第二目标发射功率之间的关联关系;
在所述第一信息包括所述第一参数和所述第二调整量的情况下,所述第一关联信息用于指示所述第一参数、所述第二调整量和所述第二参数之间的关联关系;
在所述第一信息包括所述第二目标发射功率和所述第三调整量的情况下,所述第一关联信息用于指示所述第二目标发射功率、所述第三调整量和所述第一目标发射功率之间的关联关系;
在所述第一信息包括所述第二参数和所述第四调整量的情况下,所述第一关联信息用于指示所述第二参数、所述第四调整量和所述第一目标发射功率之间的关联关系。
在一些实施方式中,射频单元1601,还用于利用所述第一通信模块对来自所述第四设备的参考信号进行测量,得到第三路径损耗;
处理器1610,还用于根据所述参考信号和所述第二信号的差异,确定路径损耗偏置值;
处理器1610,还用于根据所述第三路径损耗和所述路径损耗偏置值,确定所述第二路径损耗。
在一些实施方式中,在所述第一通信模块与所述第二通信模块的信号传输带宽不同的情况下:
所述第二调整量包括第一功率调整量,所述第一功率调整量用于指示由所述第一通信模块的信号传输带宽转换为所述第二通信模块的信号传输带宽所引起的功率调整;或者,
所述第四调整量包括第二功率调整量,所述第二功率调整量用于指示由所述第二通信模块的信号传输带宽转换为所述第一通信模块的信号传输带宽所引起的功率调整。
在一些实施方式中,在所述第一信号为正交频分复用OFDM信号,所述第二信号为单载波信号,且所述第二信号采用OFDM的带宽定义来计算第二目标发送功率的情况下:
所述第一功率调整量为:
所述第二功率调整量为:
其中,所述第二信号的占用带宽B的RB数量;所述第一信号的占用带宽B的RB数量。
在一些实施方式中,在所述第一信号为正交频分复用OFDM信号,所述第二信号为单载波信号,且所述第二信号采用单载波的带宽定义来计算第二目标发送功率的情况下:
所述第一功率调整量为:
所述第二功率调整量为:
其中,表示所述第一信号的占用带宽B的RB数量。
在一些实施方式中,在所述第一通信模块与所述第二通信模块的信号传输格式不同的情况下:
所述第二调整量包括第三功率调整量,所述第三功率调整量用于指示由所述第一通信模块的信号传输格式转换为所述第二通信模块的信号传输格式所引起的功率调整;或者,
所述第四调整量包括第四功率调整量,所述第四功率调整量用于指示由所述第二通信模块的信号传输格式转换为所述第一通信模块的信号传输格式所引起的功率调整。
在一些实施方式中,所述第三功率调整量包括:ΔLR,TF-ΔMR,TF;
所述第四功率调整量包括:ΔMR,TF-ΔLR,TF;
其中,ΔMR,TF表示所述第一通信模块在每个资源元素RE所需的发送功率;ΔLR,TF表示所述第二通信模块在每个RE所需的发送功率;
在所述第一信号为正交频分复用OFDM信号,所述第二信号为单载波信号,且所述第二信号采用OFDM的带宽定义来计算第二目标发送功率的情况下:
在所述第一信号为正交频分复用OFDM信号,所述第二信号为单载波信号,且所述第二信号采用单载波的带宽定义来计算第二目标发送功率的情况下:
其中,γ'表示所述第二信号中每个符号平均承载的比特数量;表示1个RB包含的OFDM子载波个数;表示所述第二信号的占用带宽B的RB数量;β'0和β'1为两个偏置值;Ts表示一个单载波符号的时间长度;B表示一个单载波符号的频域宽度;β'2和β'3为两个偏置值。
在一些实施方式中,在所述第一信息包括所述第一参数和所述第二参数的情况下,处理器1610执行的所述获取第一信息包括:
通过射频单元1601获取第一配置信息;
控制射频单元1601接收传输功率控制TPC信令;
其中,所述第一配置信息用于配置第一静态功率控制参数和第二静态功率控制参数;所述TPC信令指示第一动态功率控制参数和第二动态功率控制参数;
所述第一参数包括所述第一静态功率控制参数和所述第一动态功率控制参数;所述第二参数包括所述第二静态功率控制参数和所述第二动态功率控制参数。
在一些实施方式中,目标静态功率控制参数包括以下至少一项:
目标接收功率;
部分路损补偿因子;
目标接收功率和部分路损补偿因子构成的参数集合;
用于估计路径损耗的参考信号;
最大重传次数;
功率爬升的步长;
其中,所述目标静态功率控制参数包括所述第一静态功率控制参数和所述第二静态功率控制参数中的至少一项。
在一些实施方式中,目标动态功率控制参数包括以下至少一项:
第一功率偏置值和第一缩放因子,第二功率偏置值基于所述第一功率偏置值和所述第一缩放因子确定;
第二功率偏置值和第二缩放因子,第一功率偏置值基于所述第二功率偏置值和所述第二缩放因子确定;
第一标识,所述第一标识关联第一功率偏置值和第二功率偏置值;
第一功率偏置值和第二功率偏置值;
目标功率偏置值和第一指示信息,其中,所述第一指示信息用于指示所述目标功率偏置值为所述第一通信模块或所述第二通信模块的功率偏置值;
其中,所述目标动态功率控制参数包括所述第一动态功率控制参数和所述第二动态功率控制参数中的至少一项;所述第一功率偏置值为所述第一目标发射功率的偏置值;所述第二功率偏置值为所述第二目标发射功率的偏置值。
在一些实施方式中,所述第一目标发射功率和所述第二目标发射功率满足以下至少一项条件:
第一条件:所述第一目标发射功率小于或等于所述第一最大发送功率,且所述第二目标发射功率小于或等于所述第二最大发送功率;
第二条件:所述第一目标发射功率与所述第二目标发射功率之和小于或等于目标最大发送功率,所述目标最大发送功率为所述第一通信模块和所述第二通信模块的最大总发送功率。
在一些实施方式中,在所述第一目标发射功率与所述第二目标发射功率不满足所述第二条件的情况下:
射频单元1601,还用于获取第二指示信息,所述第二指示信息用于指示所述第一通信模块和所述第二通信模块的发送功率分配方法;
处理器1610,还用于根据所述第二指示信息和所述目标最大发送功率,更新所述第一目标发送功率和所述第二目标发送功率,其中,更新后的所述第一目标发送功率和第二目标发送功率满足所述第二条件。
在一些实施方式中,所述第二指示信息用于指示以下任一项:
所述第一目标发送功率和所述第二目标发送功率分别在所述第一设备的总发送功率中的占比;或者,
在所述第一通信模块的目标发送功率和第二通信模块的目标发送功率之和大于所述目标最大发送功率的情况下,优先降低所述第一通信模块或所述第二通信模块的目标发送功率,以使所述第一目标发送功率和所述第二目标发送功率之和小于或等于所述目标最大发送功率。
可以理解,本实施例中提及的各实现方式的实现过程可以参照前述第一设备侧方法实施例的相关描述,并达到相同或相应的技术效果,为避免重复,在此不再赘述。
本申请实施例还提供了一种网络侧设备,包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现前述第一设备侧或第二设备侧的方法实施例的步骤。该网络侧设备实施例与前述第一设备侧或第二设备侧的方法实施例对应,上述方法实施例的各个实施过程和实现方式均可适用于该网络侧设备实施例中,且能达到相同的技术效果。
在一种实施方式中,如图17所示,该网络侧设备1700包括:该网络侧设备17000包括:天线1701、射频装置1702、基带装置1703、处理器1704和存储器1705。天线1701与射频装置1702连接。在上行方向上,射频装置1702通过天线1701接收信息,将接收的信息发送给基带装置1703进行处理。在下行方向上,基带装置1703对要发送的信息进行处理,并发送给射频装置1702,射频装置1702对收到的信息进行处理后经过天线1701发送出去。
以上实施例中网络侧设备执行的方法可以在基带装置1703中实现,该基带装置1703包括基带处理器。
基带装置1703例如可以包括至少一个基带板,该基带板上设置有多个芯片,如图17所示,其中一个芯片例如为基带处理器,通过总线接口与存储器1705连接,以调用存储器1705中的程序,执行以上方法实施例中所示的网络设备操作。
该网络侧设备还可以包括网络接口1706,该接口例如为通用公共无线接口(Common Public Radio Interface,CPRI)。
在一些实施方式中,本申请实施例的网络侧设备1700还包括:存储在存储器1705上并可在处理器1704上运行的指令或程序,处理器1704调用存储器1705中的指令或程序执行图13或图14所示各模块执行的方法,并达到相同的技术效果,为避免重复,故不在此赘述。
本申请实施例还提供一种可读存储介质,所述可读存储介质上存储有程序或指令,该程序或指令被处理器执行时实现前述第一设备侧方法实施例或第二设备侧方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
其中,所述处理器为上述实施例中所述的终端中的处理器。所述可读存储介质,包括计算机可读存储介质,如计算机只读存储器ROM、随机存取存储器RAM、磁碟或者光盘等。在一些示例中,可读存储介质可以是非瞬态的可读存储介质。
本申请实施例另提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现前述第一设备侧方法实施例或第二设备侧方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
应理解,本申请实施例提到的芯片还可以称为系统级芯片,系统芯片,芯片系统或片上系统芯片等。
本申请实施例另提供了一种计算机程序/程序产品,所述计算机程序/程序产品被存储在存储介质中,所述计算机程序/程序产品被至少一个处理器执行以实现前述第一设备侧方法实施例或第二设备侧方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
本申请实施例另提供了一种无线通信系统,包括第一设备和第二设备,其中,所述第一设备用于执行前述第一设备侧方法实施例的步骤,所述第二设备用于执行前述第二设备侧方法实施例的步骤,且能达到相同的技术效果,为避免重复,这里不再赘述。
需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外,需要指出的是,本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能,还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能,例如,可以按不同于所描述的次序来执行所描述的方法,并且还可以添加、省去或组合各种步骤。另外,参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到上述实施例方法可借助计算机软件产品加必需的通用硬件平台的方式来实现,当然也可以通过硬件。该计算机软件产品存储在存储介质(如ROM、RAM、磁碟、光盘等)中,包括若干指令,用以使得终端或者网络侧设备执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述,但是本申请并不局限于上述的具体实施方式,上述的具体实施方式仅仅是示意性的,而不是限制性的,本领域的普通技术人员在本申请的启示下,在不脱离本申请宗旨和权利要求所保护的范围情况下,还可做出很多形式的实施方式,这些实施方式均属于本申请的保护之内。
Claims (42)
- 一种发射功率控制方法,包括:第一设备获取第一信息,所述第一设备包括第一通信模块和第二通信模块,所述第二通信模块为极低功耗通信模块;所述第一设备根据所述第一信息,确定所述第一通信模块的第一目标发射功率和所述第二通信模块的第二目标发射功率;其中,所述第一目标发射功率用于所述第一通信模块发送第一信号,所述第二目标发射功率用于所述第二通信模块发送第二信号。
- 根据权利要求1所述的方法,其中,所述第一信息包括以下至少一项:所述第一通信模块的第一目标发射功率和第一调整量,所述第二目标发射功率基于所述第一目标发射功率和所述第一调整量确定;所述第一通信模块的第一参数和第二调整量,第二参数基于所述第一参数和所述第二调整量确定;所述第二通信模块的第二目标发射功率和第三调整量,所述第一目标发射功率基于所述第二目标发射功率和所述第三调整量确定;所述第二通信模块的第二参数和第四调整量,第一参数基于所述第二参数和所述第四调整量确定;第一参数和第二参数;其中,所述第一参数包括用于确定所述第一目标发射功率的参数;所述第二参数包括用于确定所述第二目标发射功率的参数。
- 根据权利要求2所述的方法,其中,所述第一参数包括所述第一通信模块对应的以下参数中至少一项或至少两项的组合:第一目标接收功率、第一路径损耗、第一最大发送功率、所述第一信号的类型、第一闭环功率控制的偏置值、所述第一信号的占用带宽的RB数量、所述第一信号的每一个RB包含的子载波数量、所述第一信号中每个资源元素RE平均承载的比特数量、第一部分路损补偿因子;其中,所述第一路径损耗为所述第一设备和第三设备之间的路径损耗,所述第三设备为所述第一信号的接收端设备;或者,所述第二参数包括所述第二通信模块对应的以下参数中至少一项或至少两项的组合:第二目标接收功率、第二路径损耗、第二最大发送功率、所述第二信号的类型、所述第二信号中一个符号的时间长度、所述第二信号中一个符号的频域宽度、第二闭环功率控制的偏置值、所述第二信号的占用带宽的RB数量、所述第二信号的每一个RB包含的子载波数量、所述第二信号中每个符号平均承载的比特数量、第二部分路损补偿因子;其中,所述第二路径损耗为所述第一设备和第四设备之间的路径损耗,所述第四设备为所述第二信号的接收端设备。
- 根据权利要求2或3所述的方法,还包括:所述第一设备获取第一关联信息;在所述第一信息包括所述第一目标发射功率和所述第一调整量的情况下,所述第一关联信息用于指示所述第一目标发射功率、所述第一调整量和所述第二目标发射功率之间的关联关系;在所述第一信息包括所述第一参数和所述第二调整量的情况下,所述第一关联信息用于指示所述第一参数、所述第二调整量和所述第二参数之间的关联关系;在所述第一信息包括所述第二目标发射功率和所述第三调整量的情况下,所述第一关联信息用于指示所述第二目标发射功率、所述第三调整量和所述第一目标发射功率之间的关联关系;在所述第一信息包括所述第二参数和所述第四调整量的情况下,所述第一关联信息用于指示所述第二参数、所述第四调整量和所述第一目标发射功率之间的关联关系。
- 根据权利要求3所述的方法,还包括:所述第一设备利用所述第一通信模块对来自所述第四设备的参考信号进行测量,得到第三路径损耗;所述第一设备根据所述参考信号和所述第二信号的差异,确定路径损耗偏置值;所述第一设备根据所述第三路径损耗和所述路径损耗偏置值,确定所述第二路径损耗。
- 根据权利要求2至5中任一项所述的方法,其中,在所述第一通信模块与所述第二通信模块的信号传输带宽不同的情况下:所述第二调整量包括第一功率调整量,所述第一功率调整量用于指示由所述第一通信模块的信号传输带宽转换为所述第二通信模块的信号传输带宽所引起的功率调整;或者,所述第四调整量包括第二功率调整量,所述第二功率调整量用于指示由所述第二通信模块的信号传输带宽转换为所述第一通信模块的信号传输带宽所引起的功率调整。
- 根据权利要求6所述的方法,其中,在所述第一信号为正交频分复用OFDM信号,所述第二信号为单载波信号,且所述第二信号采用OFDM的带宽定义来计算第二目标发送功率的情况下:所述第一功率调整量为:所述第二功率调整量为:其中,所述第二信号的占用带宽B的RB数量;所述第一信号的占用带宽B的RB数量。
- 根据权利要求6所述的方法,其中,在所述第一信号为正交频分复用OFDM信号,所述第二信号为单载波信号,且所述第二信号采用单载波的带宽定义来计算第二目标发送功率的情况下:所述第一功率调整量为:所述第二功率调整量为:其中,表示所述第一信号的占用带宽B的RB数量。
- 根据权利要求2至5中任一项所述的方法,其中,在所述第一通信模块与所述第二通信模块的信号传输格式不同的情况下:所述第二调整量包括第三功率调整量,所述第三功率调整量用于指示由所述第一通信模块的信号传输格式转换为所述第二通信模块的信号传输格式所引起的功率调整;或者,所述第四调整量包括第四功率调整量,所述第四功率调整量用于指示由所述第二通信模块的信号传输格式转换为所述第一通信模块的信号传输格式所引起的功率调整。
- 根据权利要求9所述的方法,其中:所述第三功率调整量包括:ΔLR,TF-ΔMR,TF;所述第四功率调整量包括:ΔMR,TF-ΔLR,TF;其中,ΔMR,TF表示所述第一通信模块在每个资源元素RE所需的发送功率;ΔLR,TF表示所述第二通信模块在每个RE所需的发送功率;在所述第一信号为正交频分复用OFDM信号,所述第二信号为单载波信号,且所述第二信号采用OFDM的带宽定义来计算第二目标发送功率的情况下:在所述第一信号为正交频分复用OFDM信号,所述第二信号为单载波信号,且所述第二信号采用单载波的带宽定义来计算第二目标发送功率的情况下:其中,γ'表示所述第二信号中每个符号平均承载的比特数量;表示1个RB包含的OFDM子载波个数;表示所述第二信号的占用带宽B的RB数量;β'0和β'1为两个偏置值;Ts表示一个单载波符号的时间长度;B表示一个单载波符号的频域宽度;β'2和β'3为两个偏置值。
- 根据权利要求2至10中任一项所述的方法,其中,在所述第一信息包括所述第一参数和所述第二参数的情况下,所述第一设备获取第一信息包括:第一设备获取第一配置信息;所述第一设备接收传输功率控制TPC信令;其中,所述第一配置信息用于配置第一静态功率控制参数和第二静态功率控制参数;所述TPC信令指示第一动态功率控制参数和第二动态功率控制参数;所述第一参数包括所述第一静态功率控制参数和所述第一动态功率控制参数;所述第二参数包括所述第二静态功率控制参数和所述第二动态功率控制参数。
- 根据权利要求11所述的方法,其中,目标静态功率控制参数包括以下至少一项:目标接收功率;部分路损补偿因子;目标接收功率和部分路损补偿因子构成的参数集合;用于估计路径损耗的参考信号;最大重传次数;功率爬升的步长;其中,所述目标静态功率控制参数包括所述第一静态功率控制参数和所述第二静态功率控制参数中的至少一项。
- 根据权利要求11所述的方法,其中,目标动态功率控制参数包括以下至少一项:第一功率偏置值和第一缩放因子,第二功率偏置值基于所述第一功率偏置值和所述第一缩放因子确定;第二功率偏置值和第二缩放因子,第一功率偏置值基于所述第二功率偏置值和所述第二缩放因子确定;第一标识,所述第一标识关联第一功率偏置值和第二功率偏置值;第一功率偏置值和第二功率偏置值;目标功率偏置值和第一指示信息,其中,所述第一指示信息用于指示所述目标功率偏置值为所述第一通信模块或所述第二通信模块的功率偏置值;其中,所述目标动态功率控制参数包括所述第一动态功率控制参数和所述第二动态功率控制参数中的至少一项;所述第一功率偏置值为所述第一目标发射功率的偏置值;所述第二功率偏置值为所述第二目标发射功率的偏置值。
- 根据权利要求3所述的方法,其中,所述第一目标发射功率和所述第二目标发射功率满足以下至少一项条件:第一条件:所述第一目标发射功率小于或等于所述第一最大发送功率,且所述第二目标发射功率小于或等于所述第二最大发送功率;第二条件:所述第一目标发射功率与所述第二目标发射功率之和小于或等于目标最大发送功率,所述目标最大发送功率为所述第一通信模块和所述第二通信模块的最大总发送功率。
- 根据权利要求14所述的方法,其中,在所述第一目标发射功率与所述第二目标发射功率不满足所述第二条件的情况下,所述方法还包括:所述第一设备获取第二指示信息,所述第二指示信息用于指示所述第一通信模块和所述第二通信模块的发送功率分配方法;所述第一设备根据所述第二指示信息和所述目标最大发送功率,更新所述第一目标发送功率和所述第二目标发送功率,其中,更新后的所述第一目标发送功率和第二目标发送功率满足所述第二条件。
- 根据权利要求15所述的方法,其中,所述第二指示信息用于指示以下任一项:所述第一目标发送功率和所述第二目标发送功率分别在所述第一设备的总发送功率中的占比;或者,在所述第一通信模块的目标发送功率和第二通信模块的目标发送功率之和大于所述目标最大发送功率的情况下,优先降低所述第一通信模块或所述第二通信模块的目标发送功率,以使所述第一目标发送功率和所述第二目标发送功率之和小于或等于所述目标最大发送功率。
- 一种发射功率控制方法,包括:第二设备向第一设备发送第一信息,所述第一设备包括第一通信模块和第二通信模块,所述第二通信模块为极低功耗通信模块;所述第一信息用于确定所述第一通信模块对第一信号的第一目标发射功率和所述第二通信模块对第二信号的第二目标发射功率。
- 根据权利要求17所述的方法,其中,所述第一信息包括以下至少一项:第一通信模块的第一目标发射功率和第一调整量,所述第二目标发射功率基于所述第一目标发射功率和所述第一调整量确定;第一通信模块的第一参数和第二调整量,第二参数基于所述第一参数和所述第二调整量确定;第二通信模块的第二目标发射功率和第三调整量,所述第一目标发射功率基于所述第二目标发射功率和所述第三调整量确定;第二通信模块的第二参数和第四调整量,第一参数基于所述第二参数和所述第四调整量确定;第一参数和第二参数;其中,所述第一参数包括用于确定所述第一目标发射功率的参数;所述第二参数包括用于确定所述第二目标发射功率的参数。
- 根据权利要求18所述的方法,其中,所述第一参数包括所述第一通信模块对应的以下参数中至少一项或至少两项的组合:第一目标接收功率、第一路径损耗、第一最大发送功率、所述第一信号的类型、所述第一信号中一个符号的时间长度、所述第一信号中一个符号的频域宽度、第一闭环功率控制的偏置值、所述第一信号的占用带宽B的RB数量、所述第一信号的每一个RB包含的子载波数量、所述第一信号中每个符号平均承载的比特数量、第一部分路损补偿因子;其中,所述第一路径损耗为所述第一设备和第三设备之间的路径损耗,所述第三设备为所述第一信号的接收端设备;或者,所述第二参数包括所述第二通信模块对应的以下参数中至少一项或至少两项的组合:第二目标接收功率、第二路径损耗、第二最大发送功率、所述第二信号的类型、所述第二信号中一个符号的时间长度、所述第二信号中一个符号的频域宽度、第二闭环功率控制的偏置值、所述第二信号的占用带宽B的RB数量、所述第二信号的每一个RB包含的子载波数量、所述第二信号中每个符号平均承载的比特数量、第二部分路损补偿因子;其中,所述第二路径损耗为所述第一设备和第四设备之间的路径损耗,所述第四设备为所述第二信号的接收端设备。
- 根据权利要求18或19所述的方法,还包括:所述第二设备向所述第一设备发送第一关联信息;其中,在所述第一信息包括所述第一目标发射功率和所述第一调整量的情况下,所述第一关联信息用于指示所述第一目标发射功率、所述第一调整量和所述第二目标发射功率之间的关联关系;在所述第一信息包括所述第一参数和所述第二调整量的情况下,所述第一关联信息用于指示所述第一参数、所述第二调整量和所述第二参数之间的关联关系;在所述第一信息包括所述第二目标发射功率和所述第三调整量的情况下,所述第一关联信息用于指示所述第二目标发射功率、所述第三调整量和所述第一目标发射功率之间的关联关系;在所述第一信息包括所述第二参数和所述第四调整量的情况下,所述第一关联信息用于指示所述第二参数、所述第四调整量和所述第一目标发射功率之间的关联关系。
- 根据权利要求18至20中任一项所述的方法,其中,在所述第一通信模块与所述第二通信模块的信号传输带宽不同的情况下:所述第二调整量包括第一功率调整量,所述第一功率调整量用于指示由所述第一通信模块的信号传输带宽转换为所述第二通信模块的信号传输带宽所引起的功率调整;或者,所述第四调整量包括第二功率调整量,所述第二功率调整量用于指示由所述第二通信模块的信号传输带宽转换为所述第一通信模块的信号传输带宽所引起的功率调整。
- 根据权利要求21所述的方法,其中,在所述第一信号为正交频分复用OFDM信号,所述第二信号为单载波信号,且所述第二信号采用OFDM的带宽定义来计算第二目标发送功率的情况下:所述第一功率调整量为:所述第二功率调整量为:其中,所述第二信号的占用带宽B的RB数量;所述第一信号的占用带宽B的RB数量。
- 根据权利要求21所述的方法,其中,在所述第一信号为正交频分复用OFDM信号,所述第二信号为单载波信号,且所述第二信号采用单载波的带宽定义来计算第二目标发送功率的情况下:所述第一功率调整量为:所述第二功率调整量为:其中,表示所述第一信号的占用带宽B的RB数量。
- 根据权利要求18至23中任一项所述的方法,其中,在所述第一信息包括所述第一参数和所述第二参数的情况下,所述第二设备向第一设备发送第一信息包括:所述第二设备向第一设备发送第一配置信息;所述第二设备向所述第一设备发送传输功率控制TPC信令;其中,所述第一配置信息用于配置第一静态功率控制参数和第二静态功率控制参数;所述TPC信令指示第一动态功率控制参数和第二动态功率控制参数;所述第一参数包括所述第一静态功率控制参数和所述第一动态功率控制参数;所述第二参数包括所述第二静态功率控制参数和所述第二动态功率控制参数。
- 根据权利要求24所述的方法,其中,目标静态功率控制参数包括以下至少一项:目标接收功率;部分路损补偿因子;目标接收功率和部分路损补偿因子构成的参数集合;用于估计路径损耗的参考信号;最大重传次数;功率爬升的步长;其中,所述目标静态功率控制参数包括所述第一静态功率控制参数和所述第二静态功率控制参数中的至少一项。
- 根据权利要求24所述的方法,其中,目标动态功率控制参数包括以下至少一项:第一功率偏置值和第一缩放因子,第二功率偏置值基于所述第一功率偏置值和所述第一缩放因子确定;第二功率偏置值和第二缩放因子,第一功率偏置值基于所述第二功率偏置值和所述第二缩放因子确定;第一标识,所述第一标识关联第一功率偏置值和第二功率偏置值;第一功率偏置值和第二功率偏置值;目标功率偏置值和第一指示信息,其中,所述第一指示信息用于指示所述目标功率偏置值为所述第一通信模块或所述第二通信模块的功率偏置值;其中,所述目标动态功率控制参数包括所述第一动态功率控制参数和所述第二动态功率控制参数中的至少一项;所述第一功率偏置值为所述第一目标发射功率的偏置值;所述第二功率偏置值为所述第二目标发射功率的偏置值。
- 根据权利要求19所述的方法,其中,所述第一目标发射功率和所述第二目标发射功率满足以下至少一项条件:第一条件:所述第一目标发射功率小于或等于所述第一最大发送功率,且所述第二目标发射功率小于或等于所述第二最大发送功率;第二条件:所述第一目标发射功率与所述第二目标发射功率之和小于或等于目标最大发送功率,所述目标最大发送功率为所述第一通信模块和所述第二通信模块的最大总发送功率。
- 根据权利要求27所述的方法,还包括:所述第二设备向所述第一设备发送第二指示信息,所述第二指示信息用于指示所述第一通信模块和所述第二通信模块的发送功率分配方法。
- 根据权利要求28所述的方法,其中,所述第二指示信息用于指示以下任一项:所述第一目标发送功率和所述第二目标发送功率分别在所述第二设备的总发送功率中的占比;或者,在所述第一通信模块的目标发送功率和第二通信模块的目标发送功率之和大于所述目标最大发送功率的情况下,优先降低所述第一通信模块或所述第二通信模块的目标发送功率,以使所述第一目标发送功率和所述第二目标发送功率之和小于或等于所述目标最大发送功率。
- 一种发射功率控制装置,应用于第一设备,所述装置包括:第一获取模块,用于获取第一信息,所述第一设备包括第一通信模块和第二通信模块,所述第二通信模块为极低功耗通信模块;第一确定模块,用于根据所述第一信息,确定所述第一通信模块的第一目标发射功率和所述第二通信模块的第二目标发射功率;其中,所述第一目标发射功率用于所述第一通信模块发送第一信号,所述第二目标发射功率用于所述第二通信模块发送第二信号。
- 根据权利要求30所述的装置,其中,所述第一信息包括以下至少一项:所述第一通信模块的第一目标发射功率和第一调整量,所述第二目标发射功率基于所述第一目标发射功率和所述第一调整量确定;所述第一通信模块的第一参数和第二调整量,第二参数基于所述第一参数和所述第二调整量确定;所述第二通信模块的第二目标发射功率和第三调整量,所述第一目标发射功率基于所述第二目标发射功率和所述第三调整量确定;所述第二通信模块的第二参数和第四调整量,第一参数基于所述第二参数和所述第四调整量确定;第一参数和第二参数;其中,所述第一参数包括用于确定所述第一目标发射功率的参数;所述第二参数包括用于确定所述第二目标发射功率的参数。
- 根据权利要求31所述的装置,其中,在所述第一通信模块与所述第二通信模块的信号传输带宽不同的情况下:所述第二调整量包括第一功率调整量,所述第一功率调整量用于指示由所述第一通信模块的信号传输带宽转换为所述第二通信模块的信号传输带宽所引起的功率调整;或者,所述第四调整量包括第二功率调整量,所述第二功率调整量用于指示由所述第二通信模块的信号传输带宽转换为所述第一通信模块的信号传输带宽所引起的功率调整。
- 根据权利要求31所述的装置,其中,在所述第一通信模块与所述第二通信模块的信号传输格式不同的情况下:所述第二调整量包括第三功率调整量,所述第三功率调整量用于指示由所述第一通信模块的信号传输格式转换为所述第二通信模块的信号传输格式所引起的功率调整;或者,所述第四调整量包括第四功率调整量,所述第四功率调整量用于指示由所述第二通信模块的信号传输格式转换为所述第一通信模块的信号传输格式所引起的功率调整。
- 根据权利要求31至33中任一项所述的装置,其中,在所述第一信息包括所述第一参数和所述第二参数的情况下,所述第一获取模块包括:第一获取单元,用于获取第一配置信息;第一接收单元,用于接收传输功率控制TPC信令;其中,所述第一配置信息用于配置第一静态功率控制参数和第二静态功率控制参数;所述TPC信令指示第一动态功率控制参数和第二动态功率控制参数;所述第一参数包括所述第一静态功率控制参数和所述第一动态功率控制参数;所述第二参数包括所述第二静态功率控制参数和所述第二动态功率控制参数。
- 根据权利要求31所述的装置,其中,所述第一目标发射功率和所述第二目标发射功率满足以下至少一项条件:第一条件:所述第一目标发射功率小于或等于第一最大发送功率,且所述第二目标发射功率小于或等于第二最大发送功率;第二条件:所述第一目标发射功率与所述第二目标发射功率之和小于或等于目标最大发送功率,所述目标最大发送功率为所述第一通信模块和所述第二通信模块的最大总发送功率。
- 一种发射功率控制装置,应用于第二设备,所述装置包括:第一发送模块,用于向第一设备发送第一信息,所述第一设备包括第一通信模块和第二通信模块,所述第二通信模块为极低功耗通信模块;所述第一信息用于确定所述第一通信模块对第一信号的第一目标发射功率和所述第二通信模块对第二信号的第二目标发射功率。
- 根据权利要求36所述的装置,其中,所述第一信息包括以下至少一项:第一通信模块的第一目标发射功率和第一调整量,所述第二目标发射功率基于所述第一目标发射功率和所述第一调整量确定;第一通信模块的第一参数和第二调整量,第二参数基于所述第一参数和所述第二调整量确定;第二通信模块的第二目标发射功率和第三调整量,所述第一目标发射功率基于所述第二目标发射功率和所述第三调整量确定;第二通信模块的第二参数和第四调整量,第一参数基于所述第二参数和所述第四调整量确定;第一参数和第二参数;其中,所述第一参数包括用于确定所述第一目标发射功率的参数;所述第二参数包括用于确定所述第二目标发射功率的参数。
- 根据权利要求37所述的装置,其中,在所述第一通信模块与所述第二通信模块的信号传输带宽不同的情况下:所述第二调整量包括第一功率调整量,所述第一功率调整量用于指示由所述第一通信模块的信号传输带宽转换为所述第二通信模块的信号传输带宽所引起的功率调整;或者,所述第四调整量包括第二功率调整量,所述第二功率调整量用于指示由所述第二通信模块的信号传输带宽转换为所述第一通信模块的信号传输带宽所引起的功率调整。
- 根据权利要求37或38所述的装置,其中,在所述第一信息包括所述第一参数和所述第二参数的情况下,所述第一发送模块包括:第一发送单元,用于向第一设备发送第一配置信息;第二发送单元,用于向所述第一设备发送传输功率控制TPC信令;其中,所述第一配置信息用于配置第一静态功率控制参数和第二静态功率控制参数;所述TPC信令指示第一动态功率控制参数和第二动态功率控制参数;所述第一参数包括所述第一静态功率控制参数和所述第一动态功率控制参数;所述第二参数包括所述第二静态功率控制参数和所述第二动态功率控制参数。
- 根据权利要求37所述的装置,其中,所述第一目标发射功率和所述第二目标发射功率满足以下至少一项条件:第一条件:所述第一目标发射功率小于或等于第一最大发送功率,且所述第二目标发射功率小于或等于第二最大发送功率;第二条件:所述第一目标发射功率与所述第二目标发射功率之和小于或等于目标最大发送功率,所述目标最大发送功率为所述第一通信模块和所述第二通信模块的最大总发送功率。
- 一种通信设备,包括处理器和存储器,所述存储器存储可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如权利要求1至16中任一项所述的发射功率控制方法的步骤,或者实现如权利要求17至29中任一项所述的发射功率控制方法的步骤。
- 一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如权利要求1至16中任一项所述的发射功率控制方法的步骤,或者实现如权利要求17至29中任一项所述的发射功率控制方法的步骤。
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| CN102315887A (zh) * | 2010-06-29 | 2012-01-11 | Lg电子株式会社 | 至少使用两个无线通信方案来同时传输多个信号的用户设备装置及其方法 |
| CN102833838A (zh) * | 2012-09-19 | 2012-12-19 | 东莞宇龙通信科技有限公司 | 终端和终端射频发射功率的调整方法 |
| CN107846727A (zh) * | 2016-09-21 | 2018-03-27 | 中国移动通信有限公司研究院 | 一种功率控制方法及装置 |
| CN111917432A (zh) * | 2020-08-10 | 2020-11-10 | Oppo广东移动通信有限公司 | 发射功率的调整方法、装置、存储介质及电子设备 |
| US20230007598A1 (en) * | 2019-12-20 | 2023-01-05 | Hewlett-Packard Development Company, L.P. | Transmit power of wireless communication |
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| CN102315887A (zh) * | 2010-06-29 | 2012-01-11 | Lg电子株式会社 | 至少使用两个无线通信方案来同时传输多个信号的用户设备装置及其方法 |
| CN102833838A (zh) * | 2012-09-19 | 2012-12-19 | 东莞宇龙通信科技有限公司 | 终端和终端射频发射功率的调整方法 |
| CN107846727A (zh) * | 2016-09-21 | 2018-03-27 | 中国移动通信有限公司研究院 | 一种功率控制方法及装置 |
| US20230007598A1 (en) * | 2019-12-20 | 2023-01-05 | Hewlett-Packard Development Company, L.P. | Transmit power of wireless communication |
| CN111917432A (zh) * | 2020-08-10 | 2020-11-10 | Oppo广东移动通信有限公司 | 发射功率的调整方法、装置、存储介质及电子设备 |
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