WO2020056738A1 - 功率控制方法及其装置、通信系统 - Google Patents

功率控制方法及其装置、通信系统 Download PDF

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Publication number
WO2020056738A1
WO2020056738A1 PCT/CN2018/107029 CN2018107029W WO2020056738A1 WO 2020056738 A1 WO2020056738 A1 WO 2020056738A1 CN 2018107029 W CN2018107029 W CN 2018107029W WO 2020056738 A1 WO2020056738 A1 WO 2020056738A1
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Prior art keywords
random access
csi
ssb
selection
access resource
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PCT/CN2018/107029
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English (en)
French (fr)
Inventor
贾美艺
蒋琴艳
陈哲
张磊
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Fujitsu Ltd
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Fujitsu Ltd
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Priority to PCT/CN2018/107029 priority Critical patent/WO2020056738A1/zh
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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
    • H04W52/04—Transmission power control [TPC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices

Definitions

  • the present invention relates to the field of communications, and in particular, to a power control method, a device thereof, and a communication system.
  • the terminal device sends a message 1 (MSG1) to the network side to make a random access request, and the network side sends a message 2 (MSG2) in a broadcast manner.
  • MSG2 the network side A Random Access Response (RAR, Random Access Response) is returned to the terminal device.
  • RAR Random Access Response
  • the random access process can be divided into contention-based random access (CBRA, Content-Based Random Access) and non-contention-based random access process (CFRA, Content-Free Random Access).
  • CBRA contention-based random access
  • CFRA Non-contention-based random access process
  • CBRA terminal devices share random access resources and / or random access preambles. Therefore, random access conflicts may occur between multiple terminal devices.
  • CFRA network devices can be terminals. The device specifies a random access preamble or a random access resource and a random access preamble, thereby avoiding conflicts with random access procedures of other UEs.
  • the random access process may include the following steps: Step 1.
  • a media access control (MAC) layer of a terminal device initiates a random access process; step 2, Based on the configured wireless channel quality of the synchronization signal block (SSB, Synchronizing Signal Block) and / or channel state information reference signal (CSI-RS, Channel State Information Reference Signal), in some cases it is also considered whether there is a corresponding dedicated resource / preamble Choose an SSB or CSI-RS, or choose an SSB at will; step 3, determine and / or use a random access resource corresponding to the selected SSB or CSI-RS, and send and select the SSB or CSI-RS Corresponding random access preamble; Step 4.
  • SSB Synchronizing Signal Block
  • CSI-RS Channel State Information Reference Signal
  • Random Access Response In the case of CBRA, when the conflict is resolved, the random access process is completed, and when the conflict is not resolved Time (when contention resolution fails), return to step 2 to re-perform random access resource selection and resend the random access preamble.
  • RAR Random Access Response
  • CFRA The random access process is completed.
  • terminal devices that have not successfully received the RAR return to step 2 to re-perform the random access resource selection and resend the random access preamble.
  • the MAC layer will indicate to the lower layer the target received power corresponding to the random access preamble sent this time, so that the lower layer (such as the physical layer) can calculate the corresponding random access preamble transmission power. .
  • the target received power indicated by the MAC layer to the lower layer can be slowly increased, so that the uplink retransmission can be transmitted at a power equal to or slightly higher than the last transmission. It is not only conducive to successful reception on the network side, but will not cause much interference to other terminal equipment.
  • Use the power-related counter to determine whether the current transmission increases the target received power compared to the last transmission, that is, the power climb counter PREAMBLE_POWER_RAMPING_COUNTER.
  • the power climb counter will increase by 1 only if the selected SSB does not change, indicating that the target receive power to the lower layer is increased. In other cases, this counter remains unchanged.
  • the MAC layer when determining whether the power climb counter is incremented by 1, the MAC layer also needs to consider whether to receive a counter suspend indication from the physical layer. When this indication is received, the power climb counter remains unchanged. Among them, if the terminal device changes the airspace transmission filter before performing physical random access channel (PRACH, Physical Random Access), the physical layer will notify the MAC layer to suspend the power boost related counter, that is, the transmit power boost counter. Suspend instructions.
  • PRACH Physical Random Access
  • the current mechanism only considers the case of selecting the SSB, so whether it is the current random access resource selection process or the previous random access resource selection In the process, as long as the CSI-RS resource is selected, the power increase will not be triggered, so the power when the current random access preamble is sent is the same as before. In extreme cases, the CSI-RS resource is selected every time a random access preamble is retransmitted, the power boost mechanism cannot be applied during the random access preamble retransmission process, which may lead to useless retransmission and increase the terminal The power consumption of the device causes the network side to fail to receive the random access preamble correctly, reducing the success rate of random access.
  • an embodiment of the present invention provides a power control method, a device thereof, and a communication system.
  • a power control method includes:
  • the terminal device performs random access resource selection
  • the terminal When the random access resource selection selects a CSI-RS, or before the random access resource selection and / or the random access resource selection selects a CSI-RS and satisfies a predetermined condition, the terminal The upper layer of the device determines that a suspend instruction is received from the lower layer, or the lower layer of the terminal device sends a suspend instruction to the upper layer, or the terminal device changes the airspace transmission filter before the random access preamble retransmission.
  • the suspend indication is used to indicate a suspend power climb counter.
  • a power control method includes:
  • the terminal device performs random access resource selection
  • the terminal device controls the power climb counter according to the change of the selected random access opportunity; or when the upper layer of the terminal device does not receive a suspend instruction from the lower layer to indicate a suspended power climb counter, The selected random access opportunity changes, and the power climb counter is controlled.
  • a power control device where the device includes:
  • a processing unit configured to select a CSI-RS by performing random access resource selection in the selection unit, or selecting the random access resource before the selection unit performs the random access resource selection and / or the selection
  • the airspace transmission filter is changed or the power climb counter is suspended before the random access preamble is retransmitted.
  • a power control device where the device includes:
  • a control unit configured to control the power climb counter according to a change of the selected random access opportunity; or when the upper layer of the terminal device does not receive a suspend instruction from the lower layer to indicate a suspended power climb counter, The selected random access opportunity changes, and the power climb counter is controlled.
  • a communication system includes a network device and a terminal device, and the terminal device includes the power control apparatus according to the third aspect or the fourth aspect.
  • a beneficial effect of the embodiment of the present invention is that, when the CSI-RS is selected in the current or previous random access resource selection process, it is determined whether to suspend the power climb counter, so that the situation of selecting the CSI-RS can be considered, and it can be used when necessary. Under the circumstance that the power is increased and unnecessary retransmission is avoided, the success rate of random access is improved and the power consumption of the terminal device is reduced.
  • the beneficial effect of the embodiment of the present invention is that the power climb counter is controlled according to the selected random access opportunity change, thereby controlling the power climb counter to remain unchanged when the random access opportunity is changed, thereby limiting the transmission Power to reduce the interference of the random access preamble transmitted by the random access preamble on the network side to other terminal devices using the same random access opportunity.
  • FIG. 1 is a schematic diagram of a communication system in this embodiment
  • Embodiment 2 is a flowchart of a power control method in Embodiment 1;
  • Embodiment 3 is a flowchart of a power control method in Embodiment 2;
  • Embodiment 5 is a flowchart of a power control method in Embodiment 4.
  • Embodiment 6 is a flowchart of a power control method in Embodiment 5.
  • Embodiment 8 is a flowchart of a power control method in Embodiment 7.
  • Embodiment 9A is a flowchart of a power control method in Embodiment 8.
  • Embodiment 9B is a flowchart of a power control method in Embodiment 8.
  • FIG. 10 is a schematic structural diagram of a power control device in Embodiment 9;
  • FIG. 11 is a schematic structural diagram of a power control device in Embodiment 10.
  • FIG. 12 is a schematic structural diagram of a power control device in Embodiment 11;
  • Embodiment 13 is a flowchart of a random access method in Embodiment 12.
  • FIG. 14 is a schematic structural diagram of a terminal device in Embodiment 12.
  • first and second are used to distinguish different elements from each other by title, but they do not indicate the spatial arrangement or chronological order of these elements, and these elements should not be used by these terms. Restricted.
  • the term “and / or” includes any and all combinations of one or more of the associated listed terms.
  • the terms “comprising”, “including”, “having” and the like refer to the presence of stated features, elements, elements or components, but do not exclude the presence or addition of one or more other features, elements, elements or components.
  • the term "communication network” or “wireless communication network” may refer to a network that conforms to any of the following communication standards, such as 5G New Radio Access (5GNR, New Radio Access), Long Term Evolution (LTE, Long Term Evolution), Enhanced Long Term Evolution (LTE-A, LTE-Advanced), Wideband Code Division Multiple Access (WCDMA, Wideband Code Division Multiple Access), High-Speed Packet Access (HSPA, High-Speed Packet Access) and many more.
  • 5G New Radio Access 5G New Radio Access
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution
  • LTE-A LTE-Advanced
  • WCDMA Wideband Code Division Multiple Access
  • High-Speed Packet Access High-Speed Packet Access
  • HSPA High-Speed Packet Access
  • communication between devices in the communication system may be performed according to a communication protocol at any stage, for example, it may include but is not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, and 5G , New Radio (NR, New Radio), etc., and / or other communication protocols currently known or to be developed in the future.
  • 1G generation
  • 2G 2.5G, 2.75G
  • 5G New Radio
  • NR, New Radio New Radio
  • Network device refers to, for example, a device in a communication system that connects a terminal device to a communication network and provides services to the terminal device.
  • Network devices may include, but are not limited to, the following devices: Base Station (BS, Base Station), Access Point (AP, Access Point), Transmission and Reception Point (TRP, Transmission, Reception Point), Broadcast Transmitter, Mobile Management Entity (MME, Mobile Management entity), gateway, server, radio network controller (RNC, Radio Network Controller), base station controller (BSC, Base Station Controller), and so on.
  • BS Base Station
  • AP Access Point
  • TRP Transmission and Reception Point
  • Broadcast Transmitter Mobile Management Entity
  • MME Mobile Management Entity
  • gateway server
  • RNC Radio Network Controller
  • BSC Base Station Controller
  • the base station may include, but is not limited to, Node B (NodeB or NB), evolved Node B (eNodeB or eNB), 5G base station (gNB), and so on. In addition, it may also include a remote radio head (RRH, Remote Radio Head). , Remote radio unit (RRU, Remote Radio Unit), relay (relay) or low-power node (such as femto, pico, etc.). And the term “base station” may include some or all of their functions, and each base station may provide communication coverage for a particular geographic area.
  • the term "cell” may refer to a base station and / or its coverage area, and may be a macro cell or a small cell, depending on the context in which the term is used.
  • the term “User Equipment” (UE) or “Terminal Equipment” (TE) refers to, for example, a device that accesses a communication network through a network device and receives network services.
  • the terminal device may be fixed or mobile, and may also be called a mobile station (MS, Mobile Station), a terminal, a subscriber station (SS, Subscriber Station), an access terminal (AT, Access Terminal), a station, and so on.
  • the terminal device may include, but is not limited to, the following devices: Cellular Phone, Personal Digital Assistant (PDA, Personal Digital Assistant), wireless modem, wireless communication device, handheld device, machine-type communication device, laptop computer, Cordless phones, smartphones, smart watches, digital cameras, and more.
  • PDA Personal Digital Assistant
  • wireless modem wireless communication device
  • handheld device machine-type communication device
  • laptop computer machine-type communication device
  • Cordless phones smartphones, smart watches, digital cameras, and more.
  • the terminal device may also be a machine or device that performs monitoring or measurement.
  • the terminal device may include, but is not limited to, a Machine Type Communication (MTC) terminal, Vehicle communication terminals, device-to-device (D2D) terminals, machine-to-machine (M2M) terminals, and so on.
  • MTC Machine Type Communication
  • D2D device-to-device
  • M2M machine-to-machine
  • FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present invention, and schematically illustrates a case where a terminal device and a network device are taken as an example.
  • the communication system 100 may include a network device 101 and a terminal device 102.
  • FIG. 1 only uses one terminal device and one network device as an example for description, but the embodiment of the present invention is not limited thereto.
  • FIG. 2 is a flowchart of a power control method according to the first embodiment, which is applied to a terminal device side. As shown in Figure 2, the method includes:
  • Step 201 The terminal device selects random access resources.
  • Step 202 When the random access resource selection selects CSI-RS, the upper layer of the terminal device determines that a suspend instruction from the lower layer is received, where the suspend instruction is used to indicate a suspend power climb counter.
  • the terminal device after a random access procedure is initiated, the terminal device (higher layer, for example, the MAC layer) may be based on the wireless quality of the SSB and / or CSI-RS configured by the network device, and whether there is a corresponding dedicated resource / preamble Select SSB or CSI-RS, or choose an SSB at will.
  • the terminal device In the case where the random access process is not completed, when the RAR is not successfully received or the contention resolution is unsuccessful, the terminal device repeatedly performs the random access resource selection process.
  • the random access resource selection in this step 201 is the random access resource selection of the Nth time (that is, the current time, N is an integer greater than 1).
  • the random access process when the transmission of the random access preamble has not reached the maximum number of times, the random access process is considered to be incomplete. During the random access process, the receiving window of the random access response times out and has not yet been completed. When receiving the corresponding random access response, the terminal device determines (thinks) that the random access response was not received successfully, or when the contention resolution timer expires, the terminal device determines (thinks) that the contention resolution is unsuccessful, and the terminal device performs step 201 .
  • the purpose of selecting an SSB or CSI-RS is to determine a random access resource (including a random access opportunity) and an index of a random access preamble corresponding to the selected SSB or CSI-RS.
  • the terminal device may Use the random access resource to send the random access preamble indicated by the index.
  • the SSB or CSI-RS and the RA resource and the index of the random access preamble may have a mapping relationship.
  • the mapping relationship may be in advance on the network device side. If configured for a terminal device, the terminal device may determine a random access resource according to the selected CSI-RS or SSB and the mapping relationship.
  • step 202 in the random access resource selection in step 201, that is, in the current Nth random access resource selection, the CSI-RS is selected, and the high level of the terminal device is determined (it can also be considered as a consumer or a hypothetical assumption, etc. ) Received a suspend instruction from a lower layer, the upper layer may be a MAC layer, the lower layer may be a physical layer, and the suspend instruction is used to indicate a suspend power climb counter.
  • the upper layer of the terminal device suspends the power climb counter according to the suspend instruction.
  • the suspension action may not The power climb counter is operated, and the power climb counter may also be incremented by 0, which is not limited in this embodiment.
  • the power climb counter can determine whether the current random access preamble transmission has increased power compared to the last random access preamble transmission. Suspending the power climb counter indicates that the value of the power climb counter remains unchanged. , That is, the target received power is not increased. Therefore, the method may further include: (optional)
  • the upper layer (MAC layer) of the terminal device determines that the target received power does not increase, and the formula for calculating the target received power according to the value of the power climb counter can refer to the existing technology, for example In the following formula 1) or 2), the MAC layer of the terminal device can inform the lower layer (physical layer) of the target received power, and the MAC layer can also inform the physical layer of the selected random access resource and random access preamble. index.
  • the target received power can be calculated according to the following formula (1):
  • Target Received Power preambleReceivedTargetPower + DELTA_PREAMBLE +
  • preambleReceivedTargetPower indicates the initial value of the target received power
  • DELTA_PREAMBLE indicates the preamble parameter
  • PREMBLE_POWER_RAMPING_COUNTER indicates the value of the power climbing counter shared by SSB and CSI-RS
  • 1 indicates a preset value of 1
  • preamblePowerRampingStep indicates a preset step size.
  • the initial value of the target received power, the preamble parameter, and the preset step size may be pre-configured on the network device side.
  • the target received power can be calculated according to the following formula (2):
  • Target Received Power preambleReceivedTargetPower + DELTA_PREAMBLE + (PREAMBLE_POWER_RAMPING_COUNTER_SSB + PREAMBLE_POWER_RAMPING_COUNTER_CSIRS--k) ⁇ preamblePowerRampingStep (2)
  • preambleReceivedTargetPower represents the initial value of the target received power
  • DELTA_PREAMBLE represents the preamble parameter
  • PREAMBLE_POWER_RAMPING_COUNTER_SSB represents the value of the power climbing counter dedicated to SSB
  • PREAMBLE_POWER_RAMPING_COUNTER_CSIRS represents the value of the power climbing counter dedicated to CSI-RS resources
  • k represents the preset Rmping
  • the method may further include: (optional)
  • Step 204 The terminal device determines the transmission power of the random access preamble according to the target received power.
  • the lower layer (physical layer) of the terminal device uses the smaller value between the sum of the target received power and the path loss and the maximum power configured by the network as the transmission power of the random access preamble, and Using this transmission power, a random access preamble is transmitted on the selected random access resources (the index and resources are notified by the MAC layer).
  • the path loss is obtained by subtracting the RSRP value of the received signal received power after the high-level filtering from the reference signal power provided by the system information.
  • the method may further include (not shown): when the random access resource selection is completed, the upper layer of the terminal device (For example, the MAC layer) provides the lower layer (for example, the physical layer) with at least one of the following information: the selected resource type, including SSB, CSI-RS, etc., the CSI-RS resource identifier of the selected CSI-RS, and the SSB index of the selected SSB.
  • the upper layer of the terminal device For example, the MAC layer
  • the lower layer for example, the physical layer
  • different CSI-RS resource identifiers correspond to different physical resources.
  • the physical resources include frequency domain and / or time domain resources, and the number of ports supported by a physical resource block and time-frequency domain allocation.
  • the CSI resources The mapping relationship between the identifier and the physical resource can be pre-configured by the network device.
  • the SSB index is used to determine the position of the SSB in an SS burst.
  • Different SSB indexes correspond to different physical resources.
  • the physical resources include frequency and / or time domain resources.
  • the SSB index and the physical resource's The mapping relationship may be defined by a standard or pre-configured by a network device.
  • the power climb counter is suspended according to the suspension instruction. This method is easy to implement, has less impact on terminal equipment, and can support more Multiple functions.
  • a power control method is provided. This method is different from Embodiment 1 in that the power climb counter is not controlled by the upper layer of the terminal device directly based on the selection in the random access resource selection.
  • the lower layer of the terminal device sends a suspend instruction to the upper layer to control the power climb counter.
  • FIG. 3 is a flowchart of a power control method according to the second embodiment, which is applied to a terminal device side. As shown in Figure 3, the method includes:
  • Step 301 The terminal device selects random access resources.
  • Step 302 When the random access resource selects CSI-RS, the lower layer of the terminal device sends a suspend instruction to the upper layer, where the suspend instruction is used to indicate a suspend power climb counter;
  • step 301 is the same as step 201 in embodiment 1, and details are not described herein again.
  • step 302 in the random access resource selection in step 301, that is, in the current Nth random access resource selection, the CSI-RS is selected, and the lower layer of the terminal device sends a suspend instruction to the upper layer, which may be MAC layer, the lower layer may be a physical layer, and the suspend indication is used to indicate a suspend power climb counter.
  • the upper layer which may be MAC layer
  • the lower layer may be a physical layer
  • the suspend indication is used to indicate a suspend power climb counter.
  • the upper layer of the terminal device suspends the power climb counter according to the suspend instruction from the lower layer.
  • the suspension action is to maintain the value of the power climb counter unchanged.
  • the suspension action may be It is not to operate the power climb counter, and the power climb counter may be incremented by 0, etc. This embodiment is not limited thereto.
  • the power climb counter can determine whether the current random access preamble transmission has increased power compared to the last random access preamble transmission. Suspending the power climb counter indicates that the value of the power climb counter remains unchanged. , That is, the target received power is not increased. Therefore, the method may further include: (optional)
  • Step 303 The terminal device calculates a target received power according to a value of the power climb counter.
  • Step 304 The terminal device determines the transmission power of the random access preamble according to the target received power.
  • steps 303-304 is the same as that of steps 203 and 204 in Embodiment 1, and details are not described herein again.
  • the method may further include (not shown): when the random access resource selection is completed, an upper layer of the terminal device (For example, the MAC layer) provides the lower layer (for example, the physical layer) with at least one of the following information: the selected resource type, including SSB, CSI-RS, etc., the CSI-RS resource identifier of the selected CSI-RS, and the SSB index of the selected SSB.
  • an upper layer of the terminal device for example, the MAC layer
  • the lower layer for example, the physical layer
  • the power climb counter is suspended according to the suspension instruction. This method is easy to implement, has less impact on terminal equipment, and can support more Multiple functions.
  • a power control method is provided. This method is different from the first and second embodiments in that, when the current random access resource selection selects CSI-RS, the terminal device retransmits the preamble in the random access. The airspace transmission filter is changed before. In this case, the lower layer of the terminal device sends a suspend instruction to the upper layer to control the power climb counter.
  • FIG. 4 is a flowchart of a power control method according to Embodiment 3, which is applied to a terminal device side. As shown in Figure 4, the method includes:
  • Step 401 The terminal device performs random access resource selection.
  • Step 402 When the random access resource selection selects CSI-RS, the terminal device changes the airspace transmission filter before the random access preamble retransmission;
  • step 401 for an implementation manner of step 401, refer to step 201 in Embodiment 1, and details are not described herein again.
  • the terminal device when random access resource selection is performed in step 401, that is, at the current Nth random access resource selection, the CSI-RS is selected, and the terminal device changes the airspace before the random access preamble retransmission. Transmit filter; when the lower layer of the terminal device changes the airspace transmission filter, the lower layer of the terminal device sends a suspend instruction to the upper layer, the upper layer may be the MAC layer, the lower layer may be the physical layer, and the suspend indicator is used to indicate suspension Power climb counter.
  • the method may further include:
  • Step 403 When the airspace transmission filter is changed before the random access preamble retransmission, the lower layer of the terminal device sends a suspend instruction to the upper layer, where the suspend instruction is used to indicate a suspend power climb counter;
  • the upper layer of the terminal device suspends the power climb counter according to the suspend instruction from the lower layer.
  • the suspension action is to maintain the value of the power climb counter unchanged.
  • the suspension action may be It is not to operate the power climb counter, and the power climb counter may be incremented by 0, etc. This embodiment is not limited thereto.
  • the power climb counter can determine whether the current random access preamble transmission has increased power compared to the last random access preamble transmission. Suspending the power climb counter indicates that the value of the power climb counter remains unchanged. , That is, the target received power is not increased. Therefore, the method may further include: (optional)
  • Step 404 The terminal device calculates the target received power according to the value of the power climb counter.
  • Step 405 The terminal device determines the transmission power of the random access preamble according to the target received power.
  • steps 404 to 405 are the same as steps 203 and 204 in embodiment 1, and details are not described herein again.
  • the method may further include (not shown): when the random access resource selection is completed, an upper layer of the terminal device (For example, the MAC layer) provides at least one of the following information to the lower layer (for example, the physical layer): the selected resource type, including SSB, CSI-RS, etc., the CSI-RS resource identifier of the selected CSI-RS, and the SSB index of the selected SSB.
  • the lower layer for example, the physical layer
  • the airspace transmission filter is changed before the random access preamble is retransmitted.
  • Power climb counter this method is easy to implement, has less impact on terminal equipment, and can support more functions at lower terminal costs.
  • a power control method is provided. This method is different from Embodiment 1 in that, when the current or previous random access resource selection selects CSI-RS and meets a predetermined condition, it is controlled by a higher layer of the terminal device. The power climb counter.
  • FIG. 5 is a flowchart of a power control method according to the fourth embodiment, which is applied to a terminal device side. As shown in Figure 5, the method includes:
  • Step 501 The terminal device selects random access resources.
  • Step 502 When the random access resource selection and / or the random access resource selection before the selection selects a CSI-RS and meets a predetermined condition, the upper layer of the terminal device determines that a suspend instruction from the lower layer is received, where the The suspend indicator is used to indicate the suspend power climb counter.
  • step 501 is the same as step 201 of embodiment 1, and details are not described herein again.
  • the random access resource selection (the current time, that is, the Nth random access resource selection) selects a CSI-RS; and / or the random before the selection (the Nth selection).
  • the predetermined condition is specifically described below.
  • the random access resource selection before the selection includes the previous time, that is, the first to N-1th random access resource selections, or only the previous time ( last), that is, the N-1th random access resource selection.
  • the CSI-RS is selected for the random access resource selection before this selection (Nth selection), which indicates the first to N-1th random access resource selection.
  • the CSI-RS is selected at least once among, or indicates that the CSI-RS is selected for the N-1th random access resource selection.
  • the predetermined condition is that the selected SSB and / or CSI-RS are changed during the Nth random access resource selection and / or the Nth random access resource selection process
  • the change may indicate
  • the selected SSB and CSI-RS resource types change, and / or the selected CSI-RS resource identifier changes, and / or the selected SSB index changes.
  • the change means that the current time (Nth time) is compared with the previous time (at least one of the first to N-1 times) or the current time (Nth time) and the previous time (N-1th time) Compared to change.
  • the change in the selected resource type may include: the selected resource type is changed from SSB to CSI-RS, for example, the current random access resource selection has selected CSI-RS, the previous time (one of the first to N-1 times) ) Or the previous time (N-1 time) SSB was selected; or the selected resource type was changed from CSI-RS to SSB, for example, the current random access resource selection selected SSB, the previous time (1st to N-1 times) One time) or the previous time (N-1th time) CSI-RS was selected.
  • the selected CSI-RS resource identifier changes may include: the current random access resource selection selects the CSI-RS ID as X, the previous time (one of the first to N-1 times) or the previous time (the first N-1 times)
  • the ID of the CSI-RS is selected as Y, and X and Y are different.
  • the change of the selected SSB index may include: the index of the SSB selected for the current random access resource selection is X, the previous time (one of the first to N-1 times) or the previous time (the N-1th time) CSI-RS is selected, the index of the SSB corresponding to the same beam is Y, and X is different from Y; or CSI-RS is selected for the current random access resource selection, and the index of the SSB corresponding to the same beam is X, before The SSB was selected one time (one of the first to N-1 times) or the previous time (the N-1 time), and its SSB index is Y, and X is different from Y; or the current random access resource selection is CSI- RS, the index of the SSB corresponding to the same beam is X, and the previous time (one of the first to N-1 times) or the previous time (the N-1 time) selected the CSI-RS, which corresponds to the same beam
  • the index of the SSB is the previous time (one of
  • the CSI-RS corresponds to the SSB of the same beam, indicating that the CSI-RS and the SSB are configured with a quasi-colocation (QCL) relationship, or that the CSI-RS and the SSB have the same transceiver point Time and / or the same space resource, that is, the SSB of the CSI-RS corresponding to the same beam represents the CSI-RS quasi co-located SSB, or the same time and / or the same space resource between the sending and receiving points of the selected CSI-RS SSB.
  • QCL quasi-colocation
  • the predetermined conditions exemplified above may be implemented individually or in combination.
  • the predetermined condition may be one of the following conditions:
  • the CSI-RS resource identifier of the selected CSI-RS changes;
  • the SCSI index of the selected CSI-RS corresponding to the SSB of the same beam is changed; or,
  • a change in the SSB and CSI-RS resource types has occurred and the SSB index of the selected CSI-RS corresponding to the SSB of the same beam has changed.
  • the above is only an example, and this embodiment is not used as a limitation.
  • the predetermined condition may also be other combinations, and no further examples are given here.
  • the method when the predetermined condition is set to change the resource type, the method involves a lower layer (such as a physical layer), which reduces the interaction between the lower layers and a higher layer (such as a MAC layer), and can reduce terminal equipment. the cost of.
  • a lower layer such as a physical layer
  • a higher layer such as a MAC layer
  • step 502 when the CSI-RS is selected at any one of the first to N times, and the predetermined condition is met, the high level of the terminal device determines (may also consider that it is a considerer or a hypothetical assert) that it received from A suspend instruction of a lower layer, the upper layer may be a MAC layer, and the lower layer may be a physical layer, and the suspend instruction is used to indicate a suspend power climb counter.
  • the upper layer of the terminal device suspends the power climb counter according to the suspend instruction.
  • the suspension action may not The power climb counter is operated, and the power climb counter may also be incremented by 0, which is not limited in this embodiment.
  • the power climb counter can determine whether the current random access preamble transmission has increased power compared to the last random access preamble transmission. Suspending the power climb counter indicates that the value of the power climb counter remains unchanged. , That is, the target received power is not increased.
  • the method may further include: (not shown) the terminal device
  • the power climb counter is incremented by one.
  • the upper layer informs the lower layer target that the received power increases, and the upper layer of the terminal device receives the lower layer transmission.
  • the power climb counter is maintained. For example, if the power climb counter is not operated, the power climb counter may be increased by zero.
  • the method may further include: (optional)
  • Step 503 The terminal device calculates the target received power according to the value of the power climb counter.
  • Step 504 The terminal device determines the transmission power of the random access preamble according to the target received power.
  • steps 503-504 in this embodiment reference may be made to steps 203-204 in Embodiment 1, and details are not described herein again.
  • the method may further include (not shown): when the random access resource selection is completed, an upper layer of the terminal device (E.g. MAC layer) provides the CSI-RS resource identifier of the selected CSI-RS to the lower layer (e.g. the physical layer) and / or the selected CSI-RS corresponds to the SSB index of the SSB of the same beam and / or the SSB index of the selected SSB , Will not repeat them here.
  • an upper layer of the terminal device E.g. MAC layer
  • the lower layer e.g. the physical layer
  • the power climb counter is suspended according to the suspension instruction. This method is easy to implement, has less impact on terminal equipment, and can support more Multiple functions.
  • a power control method is provided. This method is different from Embodiment 2 in that, when the current or previous random access resource selection selects CSI-RS and satisfies a predetermined condition, the low-level The upper layer sends a suspend indication to control the power climb counter.
  • FIG. 6 is a flowchart of a power control method according to the fourth embodiment, which is applied to a terminal device side. As shown in Figure 5, the method includes:
  • Step 601 The terminal device selects random access resources.
  • Step 602 When the random access resource selection and / or the random access resource selection before the selection selects a CSI-RS and satisfies a predetermined condition, the lower layer of the terminal device sends a suspend instruction to the upper layer, where the suspend The indication is used to indicate the suspended power climb counter;
  • step 601 may refer to step 201 in embodiment 1, and the implementation of the predetermined condition in step 602 may refer to embodiment 4.
  • Embodiment 2 For the implementation of sending a suspend instruction from the lower layer of the terminal device to the upper layer, refer to Embodiment 2 is not repeated here.
  • the method may further include: (not shown) the terminal device
  • the power climb counter is incremented by one.
  • the upper layer informs the lower layer target that the received power increases, and the upper layer of the terminal device receives the lower layer transmission.
  • the power climb counter is maintained. For example, if the power climb counter is not operated, the power climb counter may be increased by zero.
  • the method may further include: (optional)
  • Step 603 The terminal device calculates a target received power according to a value of the power climb counter.
  • Step 604 The terminal device determines the transmission power of the random access preamble according to the target received power.
  • steps 603-604 for the implementation of steps 603-604, reference may be made to steps 203-204 in Embodiment 1, and details are not described herein again.
  • the method may further include (not shown): when the random access resource selection is completed, an upper layer of the terminal device (E.g. MAC layer) provides the CSI-RS resource identifier of the selected CSI-RS to the lower layer (e.g. the physical layer) and / or the selected CSI-RS corresponds to the SSB index of the SSB of the same beam and / or the SSB index of the selected SSB
  • an upper layer of the terminal device E.g. MAC layer
  • the lower layer e.g. the physical layer
  • the selected CSI-RS corresponds to the SSB index of the SSB of the same beam and / or the SSB index of the selected SSB
  • the power climb counter is suspended according to the suspension instruction. This method is easy to implement, has less impact on terminal equipment, and can support more Multiple functions.
  • a power control method is provided. This method is different from Embodiment 3 in that when the current or previous random access resource selection selects CSI-RS and satisfies a predetermined condition, the low-level The upper layer sends a suspend indication to control the power climb counter.
  • FIG. 7 is a flowchart of a power control method according to the sixth embodiment, which is applied to a terminal device side. As shown in Figure 7, the method includes:
  • Step 701 The terminal device selects random access resources.
  • Step 702 When the random access resource selection and / or the random access resource selection before the selection selects a CSI-RS and meets a predetermined condition, the terminal device changes the airspace transmission filter before the random access preamble retransmission. ;
  • step 701 may refer to step 201 in embodiment 1
  • the implementation of the predetermined condition in step 702 may refer to embodiment 4.
  • the terminal device changes the airspace transmission filter before the random access preamble retransmission.
  • Embodiment 3 For the implementation of the device, refer to Embodiment 3, and details are not described herein again.
  • the method may further include: (not shown) the terminal device
  • the power climb counter is incremented by one.
  • the upper layer informs the lower layer target that the received power increases, and the upper layer of the terminal device receives the lower layer transmission.
  • the power climb counter is maintained. For example, if the power climb counter is not operated, the power climb counter may be increased by zero.
  • the method may further include:
  • Step 703 When the airspace transmission filter is changed before the random access preamble retransmission, the lower layer of the terminal device sends a suspend instruction to the upper layer, where the suspend instruction is used to indicate a suspend power climb counter;
  • Step 704 The terminal device calculates a target received power according to a value of the power climb counter.
  • Step 705 The terminal device determines the transmission power of the random access preamble according to the target received power.
  • steps 703 to 705 is the same as steps 403 to 405 in embodiment 3, and details are not described herein again.
  • the method may further include (not shown): when the random access resource selection is completed, an upper layer of the terminal device (E.g. MAC layer) provides the CSI-RS resource identifier of the selected CSI-RS to the lower layer (e.g. the physical layer) and / or the selected CSI-RS corresponds to the SSB index of the SSB of the same beam and / or the SSB index of the selected SSB
  • an upper layer of the terminal device E.g. MAC layer
  • the lower layer e.g. the physical layer
  • the selected CSI-RS corresponds to the SSB index of the SSB of the same beam and / or the SSB index of the selected SSB
  • the airspace transmission filter is changed before the random access preamble is retransmitted.
  • Power climb counter this method is easy to implement, has less impact on terminal equipment, and can support more functions at lower terminal costs.
  • Embodiment 7 also provides a power control method, which controls a power climb counter according to a change situation of a random access opportunity corresponding to a selected SSB or CSI-RS.
  • FIG. 8 is a flowchart of a power control method according to the seventh embodiment, which is applied to a terminal device side. As shown in Figure 8, the method includes:
  • Step 801 The terminal device selects random access resources.
  • Step 802 The terminal device controls the power climb counter according to the selected random access opportunity (RO, RA, Occasions); or the upper layer of the terminal device does not receive a hang from the lower layer to indicate the suspended power climb counter.
  • the power climb counter is controlled according to the change of the selected random access opportunity.
  • the terminal device after a random access procedure is initiated, the terminal device (higher layer, for example, the MAC layer) may be based on the wireless quality of the SSB and / or CSI-RS configured by the network device, and whether there is a corresponding dedicated resource / preamble Select SSB or CSI-RS, or choose an SSB at will.
  • the terminal device In the case where the random access process is not completed, when the RAR is not successfully received or the contention resolution is unsuccessful, the terminal device repeatedly performs the random access resource selection process.
  • the random access resource selection in this step 801 is the random access resource selection of the Nth time (that is, the current time, N is an integer greater than 1).
  • the random access process when the transmission of the random access preamble has not reached the maximum number of times, the random access process is considered to be incomplete.
  • the receiving window of the random access response times out and has not yet been completed.
  • the terminal device determines (thinks) that the random access response is not received successfully, or when the contention resolution timer expires, the terminal device determines (thinks) that the contention resolution is unsuccessful, and the terminal device performs step 801 .
  • the power climb counter is controlled according to the selected random access opportunity and received at the upper layer.
  • the power climb counter is controlled according to other factors, for example, when the upper layer receives the suspend instruction from the lower layer, the power climb counter is maintained.
  • the upper layer when the random access opportunity is changed, the upper layer (for example, the MAC layer) maintains the power climb counter unchanged; when the random access opportunity is not changed, the upper layer (for example, the MAC layer) increments the power climb counter.
  • the upper layer receives a suspend instruction from the lower layer, and all of them control the power climb counter according to the change of the selected random access opportunity.
  • the upper layer for example, the MAC layer
  • the lower layer for example, the physical layer
  • a higher layer for example, the MAC layer
  • the upper layer increments the power climb counter by one.
  • the lower layer determines (or can be considered) that the spatial transmission filter is changed, or the lower layer (for example, the physical layer) is changed. Spatial transmission filter.
  • the selected random access opportunity includes an RO corresponding to the selected SSB or an RO corresponding to the selected CSI-RS.
  • the terminal device may determine the random access opportunity (random access resource) according to the selected CSI-RS or SSB and the mapping relationship between the CSI-RS / SSB and the random access opportunity, and the mapping relationship may be a network device If the terminal device is pre-configured to the terminal device, the terminal device may send a random access preamble to the RO, and the number of ROs corresponding to the CSI-RS / SSB may be at least one (M, M is an integer greater than 0).
  • the terminal device controls the power climb counter according to a change situation of a random access opportunity (RO, RA occasions) corresponding to the selected SSB or a random access opportunity corresponding to the selected CSI-RS.
  • a random access opportunity RO, RA occasions
  • the embodiment of controlling the power climb counter according to the selected random access opportunity changes, in
  • the CSI-RS is selected in step 801
  • the power climb counter is controlled according to the change of the random access opportunity corresponding to the CSI-RS. For example, when the CSI-RS is not changed, the MAC layer controls the power climb counter to increase by 1.
  • the MAC The layer keeps the power climb counter unchanged, or controls the power climb counter according to the change of the random access opportunity corresponding to the SSB. For example, when it is not changed, the MAC layer controls the power climb counter to increase by 1, and when changed, the MAC layer keeps This power climb counter is unchanged.
  • the power climb counter is controlled according to the selected random access opportunity change
  • the random access opportunity corresponding to the CSI-RS is changed.
  • Control the power climb counter for example, the MAC layer controls the power climb counter to increase by 1 when it is not changed, and the MAC layer keeps the power climb counter unchanged when it is changed, or the physical layer sends a suspend indication to the MAC layer; or according to the SSB
  • the change of the corresponding random access opportunity controls the power climb counter.
  • the MAC layer controls the power climb counter to increase by 1 when it is not changed.
  • the MAC layer keeps the power climb counter unchanged or the physical layer moves to the MAC layer. Send a suspend instruction.
  • the physical layer before the random access preamble retransmission, when the random access opportunity corresponding to the CSI-RS or SSB changes, the physical layer considers that the spatial domain transmission filter is changed, or the physical layer changes the spatial domain transmission filter.
  • the change of random access opportunities refers to step 801, that is, the current random access opportunity selected by the Nth random access resource selection and the previous ( previous), that is, the change of the random access opportunity selected by random access resource selection from the 1st to N-1 times, or the random access opportunity selected by the current Nth random access resource selection from the previous random access opportunity (last), that is, the change of random access opportunities compared to the N-1th random access resource selection, such as the random access opportunities (RO, RA) or the selected CSI-RS corresponding to the selected SSB.
  • the change of the random access opportunity refers to the random access opportunity corresponding to the SSB selected in the current Nth random access resource selection or the random access opportunity corresponding to the CSI-RS in step 801. , That is, the change of the random access opportunity corresponding to the SSB or the random access opportunity corresponding to the CSI-RS selected in any one of the random access resource selections from the first to N-1 times, or the current N random access
  • the random access opportunity corresponding to the access opportunity or CSI-RS is the same as the random access opportunity corresponding to the SSB selected in the N-1th random access resource selection or the random access corresponding to the CSI-RS. Opportunity changes.
  • the method further includes: (optional, not shown) determining whether the selected random access opportunity has not changed, that is, determining the random access opportunity corresponding to the selected SSB (RO, Whether random access opportunities corresponding to the selected CSI-RSs or RAs have not changed, for example, the M ROs corresponding to the CSI-RS / SSBs selected at the Nth random access resource are the same as the previous ROs (1st to Nth Any one of -1 times) When at least one (including all) ROs of the Z ROs corresponding to the CSI-RS / SSB selected by the random access resource are the same, it means that no change has occurred, otherwise it means that it has changed.
  • RO Whether random access opportunities corresponding to the selected CSI-RSs or RAs have not changed
  • the M ROs corresponding to the CSI-RS / SSB of the Nth random access resource selection and the CSI-RS / SSB of the random access resource selection of the previous (any of the first to N-1 times) random selection When at least one (including all) of the corresponding Z ROs are not the same, it indicates that the change has occurred; otherwise, it indicates that the change has not occurred;
  • the ROs are different, which means that the physical resources corresponding to the RO are different, and the ROs are the same, which means that the physical resources corresponding to the RO are the same.
  • the physical resources corresponding to the RO may be determined according to at least one of the following parameters: the physical random access channel PRACH configuration index, the number of frequency-division multiplexed PRACH transmission opportunities in a time instance, and the frequency The offset of the lowest PRACH transmission opportunity of the domain relative to the physical resource block (PRB 0) with index 0; the physical resources corresponding to the RO include at least one of the above parameters, and the same physical resources corresponding to the RO include the above The parameters are the same.
  • the method may further include (optional):
  • Step 803 The terminal device calculates a target received power according to a value of the power climb counter.
  • Step 804 The terminal device determines the transmission power of the random access preamble according to the target received power.
  • steps 803-804 is the same as steps 203-204 in Embodiment 3, and details are not described herein again.
  • the method may further include (not shown): when the random access resource selection is completed, an upper layer of the terminal device (E.g. MAC layer) provides the CSI-RS resource identifier of the selected CSI-RS to the lower layer (e.g. the physical layer) and / or the selected CSI-RS corresponds to the SSB index of the SSB of the same beam and / or the SSB index of the selected SSB
  • an upper layer of the terminal device E.g. MAC layer
  • the lower layer e.g. the physical layer
  • the selected CSI-RS corresponds to the SSB index of the SSB of the same beam and / or the SSB index of the selected SSB
  • the power climb counter is controlled according to the selected random access opportunity change. Therefore, when the random access opportunity changes, the control power climb counter is not changed, thereby limiting the transmission power and reducing this.
  • the transmission of the secondary random access preamble on the network side interferes with the random access preamble transmitted by other terminal devices using the same random access opportunity.
  • FIG. 9A is a flowchart of a power control method according to Embodiment 8 and is applied to a terminal device side. As shown in FIG. 9A, the method includes:
  • Step 901 The terminal device selects random access resources.
  • Step 902 In the case that the CSI-RS is selected in the random access resource selection and the CSI-RS is selected in the random access resource selection before the random access resource selection, according to the change of the selected CSI-RS, or The power climb counter is controlled according to the change of the selected CSI-RS and the existence and / or change of the SSB of the same beam corresponding to the selected CSI-RS.
  • step 901 is the same as step 201 in embodiment 1, and details are not described herein again.
  • the CSI-RS when the CSI-RS is selected in step 901, that is, the CSI-RS (first CSI-RS) is selected in the current (Nth) random access resource selection, and the previous time (previous), That is, the CSI-RS (second CSI-RS) is selected at least once in the 1st to N-1th random access resource selection, or the last time (the N-1th random access resource selection) is selected.
  • the control power climb counter is incremented by one; between the selected first CSI-RS and second CSI-RS.
  • the power climb counter is controlled according to the existence of the selected CSI-RS corresponding to the SSB of the same beam, that is, it is determined whether the selected first CSI-RS and the second CSI-RS have an SSB corresponding to the same beam. When not present, the power climb counter remains unchanged.
  • the power climb counter is controlled according to the change of the SSB of the selected CSI-RS corresponding to the same beam, that is, it is determined that the selected first CSI-RS corresponds to the first of the same beam. Whether the SSB and the second CSI-RS correspond to the same second SSB of the same beam. When the first SSB and the second SSB are the same, control the power climb. Counter is incremented, otherwise control power climb counters remained unchanged.
  • CSI corresponding to the SSB of the same beam please refer to Embodiment 4 for details.
  • the resource identifier of the selected first CSI-RS and the resource identifier of the second CSI-RS are the same, it means that the selected CSI-RS has not changed, and the resource identifier of the selected first CSI-RS and the second CSI-RS When the RS resource identifiers are different, it indicates that the CSI-RS has changed.
  • the index of the first SSB corresponding to the same beam as the selected first CSI-RS and the index of the second SSB corresponding to the same beam as the second CSI-RS are the same, it indicates that the selected CSI-RS corresponds to the same The SSB of the beam is not changed.
  • the index of the first SSB corresponding to the same beam of the first CSI-RS and the index of the second SSB corresponding to the same beam of the second CSI-RS are different, it indicates that the selected CSI-RS changes the SSB of the same beam.
  • the method may further include (optional):
  • Step 903 The terminal device calculates a target received power according to a value of the power climb counter.
  • Step 904 The terminal device determines the transmission power of the random access preamble according to the target received power.
  • steps 803-804 is the same as steps 203-204 in Embodiment 3, and details are not described herein again.
  • FIG. 9B is a flowchart of a power control method according to Embodiment 8. As shown in FIG. 9B, the method includes:
  • Step 901 ' the terminal device selects random access resources
  • Step 902 ' in the case that the first CSI-RS is selected in the random access resource selection and the second CSI-RS is selected in the random access resource selection before the random access resource selection, determine the first CSI-RS Whether the RS and the second CSI-RS are the same. If the RS and the second CSI-RS are the same, perform step 903 '; otherwise, perform step 904';
  • Step 903 ' the power climb counter is incremented by one
  • Step 904 ' it is determined whether the first CSI-RS has a first SSB corresponding to the same beam, and whether the second CSI-RS exists a second SSB corresponding to the same beam. When the determination results are all, step 905' is performed. Otherwise, execute step 906 ';
  • Step 905 ' it is judged whether the first SSB and the second SSB are the same. If the first SSB and the second SSB are the same, step 903' is performed; otherwise, step 906 'is performed;
  • Step 906 ' the power climb counter remains unchanged
  • Step 907 ' the terminal device calculates the target received power according to the value of the power climb counter
  • Step 908 ' the terminal device determines the transmission power of the random access preamble according to the target received power.
  • This embodiment 9 also provides a power control device. Since the principle of the device to solve the problem is similar to the methods of Embodiments 1 to 6, its specific implementation can refer to the implementation of the methods of Embodiments 1 to 6, and the same content is not described repeatedly.
  • FIG. 10 is a schematic diagram of a power control device according to the ninth embodiment. As shown in FIG. 10, the device 1000 includes:
  • a processing unit 1002 configured to select a CSI-RS in the random access resource selection in the selection unit 1001, or select a CSI-RS in the random access resource selection and / or a previous random access resource selection and satisfy When the conditions are predetermined, the processing unit 1002 changes the airspace transmission filter or suspends the power climb counter before the random access preamble is retransmitted.
  • Embodiments 1 to 6 for the implementation of the selection unit 1001 and the processing unit 1002, please refer to Embodiments 1 to 6, and for the implementation of the predetermined condition, please refer to Embodiment 4, which will not be repeated here.
  • the processing unit 1002 may suspend the power climb counter according to the suspend instruction.
  • the selection unit 1001 selects the CSI-RS when the random access resource is selected, or selects the random access resource.
  • the upper layer of the terminal device determines that the suspension instruction from the lower layer is received, or the lower layer of the terminal device sends the suspension to the higher layer Instructions.
  • the lower layer of the control terminal device sends the suspend indication to the upper layer.
  • the processing unit 1002 may be further configured to calculate a target receive power according to the value of the power climb counter, and determine a transmit power of a random access preamble according to the target receive power.
  • a target receive power according to the value of the power climb counter
  • determine a transmit power of a random access preamble according to the target receive power.
  • the upper layer (such as the MAC layer) that controls the terminal device provides at least one of the following information to the lower layer (such as the physical layer).
  • the selected resource type including SSB, CSI-RS, etc., the CSI-RS resource identifier of the selected CSI-RS, and the SSB index of the selected SSB.
  • the upper layer such as the MAC layer
  • the lower layer such as the physical layer
  • the CSI-RS resource identifier of the RS and / or the selected CSI-RS corresponds to the SSB index and / or the SSB index of the selected SSB for the same beam.
  • the processing unit 1002 is located at a high level of the terminal device.
  • the power climbing counter is incremented by 1.
  • the upper layer of the terminal device maintains the suspension status when the suspension instruction or the selected SSB sent by the lower layer is changed.
  • the power climb counter does not change. For example, if the power climb counter is not operated, the power climb counter may also be incremented by 0.
  • the power climb counter may also be incremented by 0.
  • the power climb counter is suspended according to the suspension instruction. This method is easy to implement, has less impact on terminal equipment, and can support more Multiple functions.
  • the tenth embodiment also provides a power control device. Since the principle of the device to solve the problem is similar to the method of Embodiment 7, its specific implementation can refer to the implementation of the method of Embodiment 7, and the same content will not be described repeatedly.
  • FIG. 11 is a schematic diagram of a power control device according to the tenth embodiment. As shown in FIG. 11, the device 1100 includes:
  • the control unit 1102 is configured to control the power climb counter according to the change of the selected random access opportunity; or when the upper layer of the terminal device does not receive a suspend instruction from the lower layer to indicate the suspended power climb counter, The selected random access opportunity changes and controls the power climb counter.
  • the implementation manners of the selection unit 1101 and the control unit 1002 are similar to those in Embodiment 7, and details are not described herein again.
  • control unit 1102 may be further configured to calculate a target receive power according to the value of the power climb counter, and determine a transmit power of a random access preamble according to the target receive power.
  • a target receive power according to the value of the power climb counter
  • determine a transmit power of a random access preamble according to the target receive power.
  • control unit 1102 increments the power climb counter by 1 if the selected random access opportunity has not changed, otherwise the power climb counter is maintained, and the selected random access opportunity includes selection.
  • control unit 1102 determines that the random access opportunity has not changed.
  • the power climb counter is controlled according to the change of the random access opportunity corresponding to the selected SSB or CSI-RS. Therefore, when the random access opportunity is changed, the power climb counter is controlled to remain unchanged.
  • the transmission power is limited, and the interference of the random access preamble transmitted by the random access preamble on the network side to other terminal devices using the same random access opportunity is reduced.
  • the embodiment 11 also provides a power control device. Since the principle of the device to solve the problem is similar to the method of Embodiment 8, its specific implementation can refer to the implementation of the method of Embodiment 8, and the same content will not be described repeatedly.
  • FIG. 12 is a schematic diagram of a power control device according to the eleventh embodiment. As shown in FIG. 12, the device 1200 includes:
  • the selection unit 1201 selects CSI-RS (first CSI-RS) in the random access resource selection, and selects CSI-RS (second CSI-RS), according to the change of the selected CSI-RS, or the change of the selected CSI-RS, and the existence and / or change of the SSB corresponding to the same beam according to the selected CSI-RS, Control power climb counter.
  • first CSI-RS first CSI-RS
  • second CSI-RS CSI-RS
  • control unit 1202 may include: (not shown) a first control module for increasing the power climb counter by one; and a second control module for maintaining the power climb counter unchanged;
  • a first determining module configured to determine whether the first CSI-RS and the second CSI-RS are the same; and when the same, the first control module controls the power climb counter;
  • the second judgment module is used to judge whether the first CSI-RS has a first SSB corresponding to the same beam and whether the second CSI-RS has a second corresponding to the same beam when the judgment result of the first judgment module is different.
  • SSB when the judgment result is non-existent, the second control module controls the power climb counter;
  • the second judgment module is configured to judge whether the first SSB and the second SSB are the same when the judgment result of the second judgment module is present.
  • the first control module controls the power climb counter.
  • Two control modules control the power climb counter.
  • control unit 1202 may be further configured to calculate a target received power according to a value of the power climb counter; and determine a transmission power of a random access preamble according to the target received power.
  • the power climb counter is controlled according to the CSI-RS change or the CSI-RS corresponding to the SSB change of the same beam.
  • the communication system 100 may include:
  • a network device 101 configured to configure a mapping relationship between SSB and / or CSI-RS and a random access resource (opportunity) to a terminal device, and configure parameters common to the SSB and CSI-RS for calculating a target received power to the terminal device Or calculate the SSB-specific parameters and CSI-RS-specific parameters of the target received power, receive the random access preamble sent by the terminal device, and return the RAR to the terminal device.
  • the terminal device 102 is configured with the power control device 1000 or 1100 or 1200 according to any one of Embodiments 1 to 8.
  • FIG. 13 is a flowchart of a random access method in this embodiment. As shown in FIG. 13, for a random access process, the method includes:
  • Step 1301 The MAC layer of the terminal device performs random access resource selection
  • Step 1302 Determine whether the selection of the CSI-RS or SSB meets a certain condition
  • the certain condition may be that the CSI-RS is selected when the random access resource is selected; or that the CSI-RS is selected and the implementation is satisfied when the random access resource selection or the previous random access resource selection is selected
  • the predetermined condition described in Example 4 or, when the upper layer of the terminal device does not receive a suspend instruction from the lower layer to indicate a suspend power climb counter (optional), the selected random access opportunity changes; or,
  • the selected CSI-RS is selected at least one of the current time and the previous time, the selected CSI-RS is not changed, or the selected CSI-RS is changed, the selected CSI-RS corresponds to the absence of the SSB of the same beam, or is selected
  • the CSI-RS is changed, the selected CSI-RS corresponds to the existence of the SSB of the same beam, and the SSB is changed.
  • Embodiment 1-8 and details are not described herein again.
  • the method may further include:
  • Step 1302 ' when satisfied, the physical layer may send a suspend instruction to the MAC layer, or change the airspace transmission filter, the physical layer may send a suspend instruction to the MAC layer, or the MAC layer controls the power climb counter For example, if it is not satisfied, increase the power climb counter by 1 and keep it unchanged when satisfied (for details, refer to Embodiments 1 to 8);
  • Step 1303 The MAC layer calculates the target received power according to the value of the power climb counter.
  • Step 1304 The MAC layer notifies the physical layer of the target received power, the index of the random access preamble, and the result of the random access resource selection. Optionally, it may also notify the selected CSI-RS resource identifier and / or CSI-RS correspondence.
  • Step 1305 The physical layer calculates the transmission power of the random access preamble according to the target received power.
  • Step 1306 The physical layer sends a random access preamble to the network device at the transmission power.
  • Step 1307 The network device receives the random access preamble and returns a RAR to the terminal device.
  • Step 1308 The MAC layer of the terminal device determines whether the RAR is received. When the random access process is based on non-competition, the process ends, or else returns to step 1301; otherwise, the random access process is When it is based on competition, if the judgment result is yes, execute step 1309, or otherwise return to step 1301;
  • the RAR may be carried by the PDCCH, and the terminal device may descramble the PDCCH.
  • the RAR is determined to receive the RAR.
  • step 1309 the MAC layer of the terminal device determines whether the contention resolution is successful. When the determination result is yes, the process ends, or otherwise returns to step 1301.
  • An embodiment of the present invention further provides a terminal device, but the present invention is not limited thereto, and may also be another device.
  • FIG. 14 is a schematic diagram of a terminal device according to an embodiment of the present invention.
  • the terminal device 1400 may include a processor 1410 and a memory 1420; the memory 1420 stores data and programs, and is coupled to the processor 1410. It is worth noting that this figure is exemplary; other types of structures can also be used to supplement or replace the structure to implement telecommunication functions or other functions.
  • the processor 1410 may be configured to execute a program to implement the power control method according to any one of Embodiments 1 to 6.
  • the processor 1410 may be configured to perform the following control: random access resource selection is performed; CSI-RS is selected for the random access resource selection, or random access resource selection is performed before the random access resource selection and / or before
  • the higher layer controlling the terminal device determines that a suspend instruction from the lower layer is received, or the lower layer controlling the terminal device sends a suspend instruction to the upper layer, or retransmits the preamble at random access Before changing the airspace transmission filter, or suspending the power climb counter according to the suspend instruction, wherein the suspend indication is used to indicate that the power climb counter is suspended.
  • the processor 1410 may be configured to execute a program to implement the power control method as described in Embodiment 7.
  • the processor 1410 may be configured to perform the following control: perform random access resource selection; control the power climb counter according to the change of the selected random access opportunity; or do not receive the low-level When the suspend instruction of the suspended power climb counter is instructed, the power climb counter is controlled according to the change of the selected random access opportunity.
  • the processor 1410 may be configured to execute a program to implement the power control method as described in Embodiment 8.
  • the processor 1410 may be configured to perform the following control: random access resource selection; CSI-RS is selected during the random access resource selection, and random access resource selection before the random access resource selection is selected
  • CSI-RS is selected during the random access resource selection
  • CSI-RS is selected during the random access resource selection
  • SSB SSB corresponding to the same beam according to the selected CSI-RS
  • the terminal device 1400 may further include a communication module 1430, an input unit 1440, a display 1450, and a power supply 1460.
  • the functions of the above components are similar to those in the prior art, and are not repeated here. It is worth noting that the terminal device 1400 does not have to include all the components shown in FIG. 14, and the above components are not necessary.
  • the terminal device 1400 may also include components not shown in FIG. 14. There is technology.
  • An embodiment of the present invention further provides a storage medium storing a computer-readable program, where the computer-readable program causes a power control apparatus or a terminal device to execute the power control method according to any one of Embodiments 1 to 8.
  • An embodiment of the present invention also provides a computer-readable program, wherein when the program is executed in a power control device or a terminal device, the program causes the power control device or the terminal device to execute any of the embodiments 1 to 8 The power control method described above.
  • the above devices and methods of the present invention may be implemented by hardware, or may be implemented by hardware in combination with software.
  • the present invention relates to a computer-readable program that, when executed by a logic component, enables the logic component to implement the apparatus or constituent components described above, or enables the logic component to implement various methods described above. Or steps.
  • the present invention also relates to a storage medium for storing the above programs, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, and the like.
  • Each processing method in each device described in connection with the embodiments of the present invention may be directly embodied as hardware, a software module executed by a processor, or a combination of the two.
  • one or more of the functional block diagrams and / or one or more combinations of functional block diagrams shown in Figs. 10-12 may correspond to each software module of a computer program flow, or to each hardware module.
  • These software modules can correspond to the steps shown in Figures 2-9A-9B, respectively.
  • These hardware modules can be implemented by using a field programmable gate array (FPGA) to cure these software modules.
  • FPGA field programmable gate array
  • a software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art.
  • a storage medium may be coupled to the processor so that the processor can read information from and write information to the storage medium; or the storage medium may be a component of the processor.
  • the processor and the storage medium may reside in an ASIC.
  • This software module can be stored in the memory of the mobile terminal or in a memory card that can be inserted into the mobile terminal.
  • the software module may be stored in the MEGA-SIM card or a large-capacity flash memory device.
  • One or more of the functional block diagrams and / or one or more combinations of the functional block diagrams described with reference to FIGS. 10-12 may be implemented as a general-purpose processor, digital signal processor (DSP) for performing the functions described in this application. , Application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or any suitable combination thereof.
  • DSP digital signal processor
  • ASICs Application specific integrated circuits
  • FPGAs field programmable gate arrays
  • One or more of the functional block diagrams and / or one or more combinations of the functional block diagrams described with respect to FIGS. 2-9A-9B may also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, multiple A microprocessor, one or more microprocessors in conjunction with a DSP communication, or any other such configuration.
  • Attachment 1 A power control method, wherein the method includes:
  • the terminal device performs random access resource selection
  • the terminal determines that a suspend instruction has been received from the lower layer, wherein the suspend instruction is used to indicate a suspend power climb counter.
  • the predetermined conditions include: occurrence of the SSB and / or CSI-RS selected when the random access resource selection and / or the random access resource selection before the selection occurs. change.
  • the resource type of the SSB or CSI-RS selected in the random access resource selection and / or the random access resource selection before the selection is changed, and / or,
  • the CSI-RS resource identifier of the CSI-RS selected in the random access resource selection and / or the random access resource selection before the selection is changed, and / or,
  • the SSB index of the CSI-RS selected in the random access resource selection and / or the random access resource selection before the selection changes corresponding to the SSB of the same beam.
  • the CSI-RS resource identifier of the CSI-RS selected in the random access resource selection and / or the random access resource selection before the selection is changed, or,
  • the SSB index of the CSI-RS selected in the random access resource selection and / or the random access resource selection before the selection changes corresponding to the SSB of the same beam, or,
  • the type of the resource selected in the random access resource selection and / or the random access resource selection before the selection is changed from CSI-RS to SSB, or,
  • the random access resource selection and / or the resource type selected in the random access resource selection before the selection is changed from SSB to CSI-RS, or,
  • the type of the resource selected in the random access resource selection and / or the random access resource selection before the selection is changed from CSI-RS to SSB, and the selected CSI-RS corresponds to the SSB index of the SSB of the same beam, or,
  • the type of the resource selected in the random access resource selection and / or the random access resource selection before the selection is changed from SSB to CSI-RS, and the selected CSI-RS corresponds to the SSB index of the SSB of the same beam.
  • the power climb counter remains unchanged.
  • the upper layer of the terminal device provides the lower layer with the selected resource type and / or the CSI-RS resource identifier of the selected CSI-RS and / or the SSB index of the selected SSB and / or the selected
  • the CSI-RS corresponds to the SSB index of the SSB of the same beam.
  • the terminal device determines a transmission power of a random access preamble according to the target received power.
  • the terminal device determines a transmission power of a random access preamble according to the target received power.
  • a power control method wherein the method includes:
  • the terminal device performs random access resource selection
  • the terminal When the random access resource selection selects a CSI-RS, or before the random access resource selection and / or the random access resource selection selects a CSI-RS and satisfies a predetermined condition, the terminal The lower layer of the device sends a suspend indication to the upper layer, where the suspend indication is used to indicate a suspend power climb counter.
  • the predetermined conditions include: occurrence of SSB and / or CSI-RS selected in the random access resource selection and / or random access resource selection before the selection change.
  • the resource type of the SSB or CSI-RS selected in the random access resource selection and / or the random access resource selection before the selection is changed, and / or,
  • the CSI-RS resource identifier of the CSI-RS selected in the random access resource selection and / or the random access resource selection before the selection is changed, and / or,
  • the SSB index of the CSI-RS selected in the random access resource selection and / or the random access resource selection before the selection changes corresponding to the SSB of the same beam.
  • the CSI-RS resource identifier of the CSI-RS selected in the random access resource selection and / or the random access resource selection before the selection is changed, or,
  • the SSB index of the CSI-RS selected in the random access resource selection and / or the random access resource selection before the selection changes corresponding to the SSB of the same beam, or,
  • the type of the resource selected in the random access resource selection and / or the random access resource selection before the selection is changed from CSI-RS to SSB, or,
  • the type of the resource selected in the random access resource selection and / or the random access resource selection before the selection is changed from SSB to CSI-RS, or,
  • the type of the resource selected in the random access resource selection and / or the random access resource selection before the selection is changed from CSI-RS to SSB, and the selected CSI-RS corresponds to the SSB index of the SSB of the same beam, or,
  • the type of the resource selected in the random access resource selection and / or the random access resource selection before the selection is changed from SSB to CSI-RS, and the selected CSI-RS corresponds to the SSB index of the SSB of the same beam.
  • the power climb counter remains unchanged.
  • the upper layer of the terminal device provides the lower layer with the selected resource type and / or the CSI-RS resource identifier of the selected CSI-RS and / or the SSB index of the selected SSB and / or the selected
  • the CSI-RS corresponds to the SSB index of the SSB of the same beam.
  • the terminal device determines a transmission power of a random access preamble according to the target received power.
  • the terminal device determines a transmission power of a random access preamble according to the target received power.
  • a power control method wherein the method includes:
  • the terminal device performs random access resource selection
  • the terminal When the random access resource selection selects a CSI-RS, or before the random access resource selection and / or the random access resource selection selects a CSI-RS and satisfies a predetermined condition, the terminal The device changes the airspace transmission filter before the random access preamble retransmission;
  • the lower layer of the terminal device sends a suspend instruction to the upper layer, wherein the suspend instruction is used to indicate a suspend power climb counter.
  • the predetermined condition comprises: occurrence of SSB and / or CSI-RS selected in the random access resource selection and / or random access resource selection before the selection change.
  • the resource type of the SSB or CSI-RS selected in the random access resource selection and / or the random access resource selection before the selection is changed, and / or,
  • the CSI-RS resource identifier of the CSI-RS selected in the random access resource selection and / or the random access resource selection before the selection is changed, and / or,
  • the SSB index of the CSI-RS selected in the random access resource selection and / or the random access resource selection before the selection changes corresponding to the SSB of the same beam.
  • the CSI-RS resource identifier of the CSI-RS selected in the random access resource selection and / or the random access resource selection before the selection is changed, or,
  • the SSB index of the CSI-RS selected in the random access resource selection and / or the random access resource selection before the selection changes corresponding to the SSB of the same beam, or,
  • the type of the resource selected in the random access resource selection and / or the random access resource selection before the selection is changed from CSI-RS to SSB, or,
  • the random access resource selection and / or the resource type selected in the random access resource selection before the selection is changed from SSB to CSI-RS, or,
  • the type of the resource selected in the random access resource selection and / or the random access resource selection before the selection is changed from CSI-RS to SSB, and the selected CSI-RS corresponds to the SSB index of the SSB of the same beam, or,
  • the type of the resource selected in the random access resource selection and / or the random access resource selection before the selection is changed from SSB to CSI-RS, and the selected CSI-RS corresponds to the SSB index of the SSB of the same beam.
  • the power climb counter remains unchanged.
  • the upper layer of the terminal device provides the lower layer with the selected resource type and / or the CSI-RS resource identifier of the selected CSI-RS and / or the SSB index of the selected SSB and / or the selected
  • the CSI-RS corresponds to the SSB index of the SSB of the same beam.
  • the terminal device determines a transmission power of a random access preamble according to the target received power.
  • the terminal device determines a transmission power of a random access preamble according to the target received power.
  • a power control method wherein the method includes:
  • the terminal device performs random access resource selection
  • the terminal device may select a random access opportunity corresponding to the selected SSB or a random access corresponding to the selected CSI-RS. Control the power climb counter for changes in access opportunities.
  • step of controlling the power climb counter according to a change in the random access opportunity corresponding to the selected SSB or the random access opportunity corresponding to the selected CSI-RS includes:
  • the power climb counter is incremented by 1, or,
  • the power climb counter is incremented by one.
  • the terminal device determines a transmission power of a random access preamble according to the target received power.
  • the terminal device determines a transmission power of a random access preamble according to the target received power.
  • a power control method wherein the method includes:
  • the terminal device performs random access resource selection
  • the first CSI-RS is selected in the random access resource selection and the second CSI-RS is selected in the random access resource selection before the random access resource selection
  • a change is made according to the selected CSI-RS Situation, or according to the selected CSI-RS changes and the selected CSI-RS corresponding to the existence and / or change of the SSB of the same beam, control the power climb counter.
  • control power climb counter includes:
  • first CSI-RS and the second CSI-RS determine whether a first SSB corresponding to the same beam exists on the first CSI-RS and whether a corresponding beam exists on the second CSI-RS The second SSB; when the judgment result is non-existent, maintain the power climb counter unchanged;
  • the power climb counter is incremented by 1. If the judgment result is not the same, the power climb counter is maintained. .
  • a power control method wherein the method includes:
  • the selected random access opportunity comprises: a random access opportunity corresponding to a selected SSB or a random access opportunity corresponding to a selected CSI-RS.
  • the method further comprises: when the random access opportunity is changed before the random access preamble retransmission, the lower layer determines that the airspace transmission filter is changed, or the low layer changes the airspace transmission filter Device.

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Abstract

一种功率控制方法及其装置、通信系统。其中，该功率控制方法包括：终端设备进行随机接入资源选择；在该随机接入资源选择选择了CSI-RS，或在该随机接入资源选择和/或该选择之前的随机接入资源选择选择了CSI-RS且满足预定条件时，该终端设备的高层确定收到了来自低层的挂起指示，或该终端设备的低层向高层发送挂起指示，或该终端设备在随机接入前导码重传前改变空域发送滤波器，其中，该挂起指示用于指示挂起功率爬升计数器。由此考虑了选择CSI-RS的情况，能够在必要的情况下进行功率提升并避免无用的重传，从而提高了随机接入的成功率并减少了终端设备的功率消耗。

Description

功率控制方法及其装置、通信系统 技术领域
本发明涉及通信领域，特别涉及一种功率控制方法及其装置、通信系统。
背景技术
在随机接入(RA，Random Access)过程中，终端设备向网络侧发送消息1(MSG1)以提出随机接入请求，网络侧以广播的方式发出消息2(MSG2)，在MSG2中，网络侧向终端设备返回随机接入响应(RAR，Random Access Response)。另外，随机接入过程可以分为基于竞争的随机接入(CBRA，Contention Based Random Access)和非竞争的随机接入过程(CFRA，Contention-Free Random Access)。在CBRA中，终端设备共享随机接入资源和/或随机接入前导码(Random Access Preamble)，因此，多个终端设备之间可能发生随机接入冲突；而在CFRA中，网络设备可为终端设备指定随机接入前导码或随机接入资源和随机接入前导码，从而避免与其他UE的随机接入过程冲突。
应该注意，上面对技术背景的介绍只是为了方便对本发明的技术方案进行清楚、完整的说明，并方便本领域技术人员的理解而阐述的。不能仅仅因为这些方案在本发明的背景技术部分进行了阐述而认为上述技术方案为本领域技术人员所公知。
发明内容
在未来通信系统中，例如新无线(NR)系统中，随机接入过程可以包括如下步骤：步骤1，终端设备的介质访问控制(MAC，Media Access Control)层发起随机接入过程；步骤2，基于配置的同步信号块(SSB，Synchronizing Signal Block)和/或信道状态信息参考信号(CSI-RS，Channel State Information Reference Signal)的无线信道质量，有些情况下还考虑是否有对应的专用资源/前导码等因素，选择一个SSB或CSI-RS，或随意选择一个SSB；步骤3，确定和/或使用与选择的SSB或CSI-RS相应的随机接入资源，发送与选择的SSB或CSI-RS相应的随机接入前导码；步骤4、对于成功接收随机接入响应(RAR，Random Access Response)的终端设备，在CBRA的情况下，在冲突解决时，随机接入过程完成，在冲突未解决时(竞争解决失败时)， 返回步骤2重新执行随机接入资源选择并重新发送随机接入前导码，在CFRA的情况下，随机接入过程完成，对于未成功接收RAR的终端设备，返回步骤2重新执行随机接入资源选择并重新发送随机接入前导码。
在每次执行上面的步骤3时，MAC层都会向低层指示此次发送随机接入前导码所对应的目标接收功率，以便低层(例如物理层)计算出相应的随机接入前导码的发送功率。在重新发送随机接入前导码的情况下，由于功率提升机制，MAC层指示给低层的目标接收功率可以缓慢上升，这样，上行重传可以以等于或稍高于上次传输的功率进行发送，既有利于网络侧的成功接收，还不会对其他终端设备造成太大干扰。使用与功率提升相关的计数器来确定当前传输相较于上次传输是否增加目标接收功率，即功率爬升计数器PREAMBLE_POWER_RAMPING_COUNTER。
根据当前的机制，从资源选择角度来说，只有在选择的SSB不改变的情况下，功率爬升计数器才会加1，表示指示给低层的目标接收功率增加。在其他情况下，该计数器保持不变。
此外，根据当前的机制，当决定功率爬升计数器是否加1时，MAC层还需要考虑是否从物理层收到计数器挂起指示。当收到该指示时，与功率爬升计数器保持不变。其中，如果在进行物理随机接入信道(PRACH，Physical Random Access Channel)重传前，终端设备改变空域发送滤波器，那么物理层将通知MAC层挂起功率提升相关的计数器，即发送功率提升计数器挂起指示。
因此，如果按照当前的机制决定是否进行功率提升，则存在以下的问题：当前的机制只考虑了选择SSB的情况，因此无论是当前的随机接入资源选择过程还是前一次的随机接入资源选择过程，只要选择了CSI-RS资源，那么将不会触发功率提升，因此当前随机接入前导码发送时的功率都与之前相同。在极端情况下，每次重传随机接入前导码时都选择了CSI-RS资源，则随机接入前导码重传过程里无法应用功率提升机制，这可能导致无用的重传，增加了终端设备的功率消耗，并导致网络侧无法正确接收随机接入前导码，降低了随机接入的成功率。
为了解决上述问题，本发明实施例提供一种功率控制方法及其装置、通信系统。
根据本实施例的第一方面，提供一种功率控制方法，其中，所述方法包括：
终端设备进行随机接入资源选择；
在所述随机接入资源选择选择了CSI-RS，或在所述随机接入资源选择和/或所述 选择之前的随机接入资源选择选择了CSI-RS且满足预定条件时，所述终端设备的高层确定收到了来自低层的挂起指示，或所述终端设备的低层向高层发送挂起指示，或所述终端设备在随机接入前导码重传前改变空域发送滤波器，其中，所述挂起指示用于指示挂起功率爬升计数器。
根据本实施例的第二方面，提供一种功率控制方法，其中，该方法包括：
终端设备进行随机接入资源选择；
所述终端设备根据选择的随机接入机会的变化情况，控制所述功率爬升计数器；或在所述终端设备的高层未收到来自低层用于指示挂起功率爬升计数器的挂起指示时，根据选择的随机接入机会的变化情况，控制所述功率爬升计数器。
根据本实施例的第三方面，提供一种功率控制装置，其中，该装置包括：
选择单元，其用于进行随机接入资源选择；
处理单元，其用于在所述选择单元进行随机接入资源选择选择了CSI-RS，或在所述选择单元进行所述随机接入资源选择和/或所述选择之前的随机接入资源选择选择了CSI-RS且满足预定条件时，在随机接入前导码重传前改变空域发送滤波器，或挂起功率爬升计数器。
根据本实施例的第四方面，提供一种功率控制装置，其中，该装置包括：
选择单元，其用于进行随机接入资源选择；
控制单元，其用于根据选择的随机接入机会的变化情况，控制所述功率爬升计数器；或在终端设备的高层未收到来自低层用于指示挂起功率爬升计数器的挂起指示时，根据选择的随机接入机会的变化情况，控制所述功率爬升计数器。
根据本实施例的第五方面，提供一种通信系统，所述通信系统包含网络设备和终端设备，该终端设备包含前述第三方面或第四方面所述的功率控制装置。
本发明实施例的有益效果在于，在当前次或之前次随机接入资源选择过程中选择了CSI-RS时，确定是否挂起功率爬升计数器，从而考虑了选择CSI-RS的情况，能够在必要的情况下进行功率提升并避免无用的重传，从而提高了随机接入的成功率并减少了终端设备的功率消耗。
本发明实施例的有益效果在于，根据选择的随机接入机会的变化情况来控制功率爬升计数器，由此，在随机接入机会改变的情况下，控制功率爬升计数器不变，由此限制了发送功率，减少此次随机接入前导码的传输在网络侧对其他终端设备使用相同 随机接入机会传输的随机接入前导码的干扰。
参照后文的说明和附图，详细公开了本发明的特定实施方式，指明了本发明的原理可以被采用的方式。应该理解，本发明的实施方式在范围上并不因而受到限制。在所附权利要求的条款的范围内，本发明的实施方式包括许多改变、修改和等同。
针对一种实施方式描述和/或示出的特征可以以相同或类似的方式在一个或更多个其它实施方式中使用，与其它实施方式中的特征相组合，或替代其它实施方式中的特征。
应该强调，术语“包括/包含”在本文使用时指特征、整件、步骤或组件的存在，但并不排除一个或更多个其它特征、整件、步骤或组件的存在或附加。
附图说明
在本发明实施例的一个附图或一种实施方式中描述的元素和特征可以与一个或更多个其它附图或实施方式中示出的元素和特征相结合。此外，在附图中，类似的标号表示几个附图中对应的部件，并可用于指示多于一种实施方式中使用的对应部件。
所包括的附图用来提供对本发明实施例的进一步的理解，其构成了说明书的一部分，用于例示本发明的实施方式，并与文字描述一起来阐释本发明的原理。显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
在附图中：
图1是本实施例的通信系统的一示意图；
图2是实施例1中功率控制方法流程图；
图3是实施例2中功率控制方法流程图；
图4是实施例3中功率控制方法流程图；
图5是实施例4中功率控制方法流程图；
图6是实施例5中功率控制方法流程图；
图7是实施例6中功率控制方法流程图；
图8是实施例7中功率控制方法流程图；
图9A是实施例8中功率控制方法流程图；
图9B是实施例8中功率控制方法流程图；
图10是实施例9中功率控制装置结构示意图；
图11是实施例10中功率控制装置结构示意图；
图12是实施例11中功率控制装置结构示意图；
图13是实施例12中随机接入方法流程图；
图14是实施例12中终端设备结构示意图。
具体实施方式
参照附图，通过下面的说明书，本发明的前述以及其它特征将变得明显。在说明书和附图中，具体公开了本发明的特定实施方式，其表明了其中可以采用本发明的原则的部分实施方式，应了解的是，本发明不限于所描述的实施方式，相反，本发明包括落入所附权利要求的范围内的全部修改、变型以及等同物。下面结合附图对本发明的各种实施方式进行说明。这些实施方式只是示例性的，不是对本发明的限制。
在本发明实施例中，术语“第一”、“第二”等用于对不同元素从称谓上进行区分，但并不表示这些元素的空间排列或时间顺序等，这些元素不应被这些术语所限制。术语“和/或”包括相关联列出的术语的一种或多个中的任何一个和所有组合。术语“包含”、“包括”、“具有”等是指所陈述的特征、元素、元件或组件的存在，但并不排除存在或添加一个或多个其他特征、元素、元件或组件。
在本发明实施例中，单数形式“一”、“该”等包括复数形式，应广义地理解为“一种”或“一类”而并不是限定为“一个”的含义；此外术语“所述”应理解为既包括单数形式也包括复数形式，除非上下文另外明确指出。此外术语“根据”应理解为“至少部分根据……”，术语“基于”应理解为“至少部分基于……”，除非上下文另外明确指出。
在本发明实施例中，术语“通信网络”或“无线通信网络”可以指符合如下任意通信标准的网络，例如第五代新无线接入(5G NR，New Radio Access)、长期演进(LTE，Long Term Evolution)、增强的长期演进(LTE-A，LTE-Advanced)、宽带码分多址接入(WCDMA，Wideband Code Division Multiple Access)、高速报文接入(HSPA，High-Speed Packet Access)等等。
并且，通信系统中设备之间的通信可以根据任意阶段的通信协议进行，例如可以包括但不限于如下通信协议：1G(generation)、2G、2.5G、2.75G、3G、4G、4.5G 以及5G、新无线(NR，New Radio)等等，和/或其他目前已知或未来将被开发的通信协议。
在本发明实施例中，术语“网络设备”例如是指通信系统中将终端设备接入通信网络并为该终端设备提供服务的设备。网络设备可以包括但不限于如下设备：基站(BS，Base Station)、接入点(AP、Access Point)、发送接收点(TRP，Transmission Reception Point)、广播发射机、移动管理实体(MME、Mobile Management Entity)、网关、服务器、无线网络控制器(RNC，Radio Network Controller)、基站控制器(BSC，Base Station Controller)等等。
其中，基站可以包括但不限于：节点B(NodeB或NB)、演进节点B(eNodeB或eNB)以及5G基站(gNB)，等等，此外还可包括远端无线头(RRH，Remote Radio Head)、远端无线单元(RRU，Remote Radio Unit)、中继(relay)或者低功率节点(例如femto、pico等等)。并且术语“基站”可以包括它们的一些或所有功能，每个基站可以对特定的地理区域提供通信覆盖。术语“小区”可以指的是基站和/或其覆盖区域，可以是宏小区或小小区，这取决于使用该术语的上下文。
在本发明实施例中，术语“用户设备”(UE，User Equipment)或者“终端设备”(TE，Terminal Equipment)例如是指通过网络设备接入通信网络并接收网络服务的设备。终端设备可以是固定的或移动的，并且也可以称为移动台(MS，Mobile Station)、终端、用户台(SS，Subscriber Station)、接入终端(AT，Access Terminal)、站，等等。
其中，终端设备可以包括但不限于如下设备：蜂窝电话(Cellular Phone)、个人数字助理(PDA，Personal Digital Assistant)、无线调制解调器、无线通信设备、手持设备、机器型通信设备、膝上型计算机、无绳电话、智能手机、智能手表、数字相机，等等。
再例如，在物联网(IoT，Internet of Things)等场景下，终端设备还可以是进行监控或测量的机器或装置，例如可以包括但不限于：机器类通信(MTC，Machine Type Communication)终端、车载通信终端、设备到设备(D2D，Device to Device)终端、机器到机器(M2M，Machine to Machine)终端，等等。
以下通过示例对本发明实施例的场景进行说明，但本发明不限于此。
图1是本发明实施例的通信系统的一示意图，示意性说明了以终端设备和网络设 备为例的情况，如图1所示，通信系统100可以包括网络设备101和终端设备102。为简单起见，图1仅以一个终端设备和一个网络设备为例进行说明，但本发明实施例不限于此。
值得注意的是，本发明实施例以NR系统的随机接入过程为例进行说明，但本发明不限于此，本发明也同样适用于存在类似问题的其他场景中。
下面结合附图对本发明实施例进行说明。
实施例1
图2是本实施例1的功率控制方法流程图，应用于终端设备侧。如图2所示，该方法包括：
步骤201，终端设备进行随机接入资源选择；
步骤202，在该随机接入资源选择选择了CSI-RS时，终端设备的高层确定收到了来自低层的挂起指示，其中，该挂起指示用于指示挂起功率爬升计数器。
在本实施例中，在一次随机接入过程发起后，终端设备(高层，例如MAC层)可以基于网络设备配置的SSB和/或CSI-RS的无线质量、是否有对应的专用资源/前导码选择SSB或CSI-RS，或者随意选择一个SSB，在该一次随机接入过程未完成的情况下，在未成功接收到RAR或竞争解决未成功时，终端设备重复执行随机接入资源选择的过程，该步骤201中的随机接入资源选择为第N次(即当前次，N为大于1的整数)的随机接入资源选择。
在本实施例中，在随机接入前导码的传输未达到最大次数时，认为该一次随机接入过程未完成，在该一次随机接入过程中，在随机接入响应的接收窗超时且尚未收到相应的随机接入响应时，终端设备确定(认为)随机接入响应接收未成功，或者在竞争解决定时器超时时，终端设备确定(认为)竞争解决未成功，该终端设备执行步骤201。
在本实施例中，选择SSB或CSI-RS的目的是确定与选择的该SSB或CSI-RS对应的随机接入资源(包含随机接入机会)以及随机接入前导码的索引，终端设备可以使用该随机接入资源发送该索引指示的随机接入前导码，该SSB或CSI-RS与RA资源以及随机接入前导码的索引可以具有映射关系，例如，该映射关系可以是网络设备侧预先配置给终端设备的，终端设备可以根据选择的CSI-RS或SSB以及该映射关系 确定随机接入资源。
在步骤202中，在步骤201中随机接入资源选择时，即在当前第N次随机接入资源选择时，选择了CSI-RS，终端设备的高层确定(也可以是认为consider或假设assume等)收到了来自低层的挂起指示，该高层可以是MAC层，该低层可以是物理层，该挂起指示用于指示挂起功率爬升计数器。
在本实施例中，终端设备的高层根据该挂起指示，挂起该功率爬升计数器，该挂起的动作为了维持该功率爬升计数器的值不变，例如，该挂起的动作可以是不对该功率爬升计数器进行操作，也可以将该功率爬升计数器加0等，本实施例并不以此作为限制。
在本实施例中，该功率爬升计数器可以确定当前随机接入前导传输相较于上次随机接入前导传输是否增加功率，挂起该功率爬升计数器，即表示该功率爬升计数器的值保持不变，即不提升目标接收功率。因此，该方法还可以包括：(可选)
步骤203，该终端设备根据该功率爬升计数器的值计算目标接收功率；
在本实施例中，在挂起该功率爬升计数器时，终端设备的高层(MAC层)确定该目标接收功率不提升，根据功率爬升计数器的值计算目标接收功率的公式可以参考现有技术，例如如下公式1)或2)，终端设备的MAC层可以将该目标接收功率告知低层(物理层)，该MAC层还可以一并告知物理层该选择的随机接入资源以及随机接入前导码的索引。
例如，在使用的是SSB和CSI-RS共用的功率爬升计数器的情况下，可以根据以下的公式(1)计算目标接收功率：
目标接收功率＝preambleReceivedTargetPower+DELTA_PREAMBLE+
(PREAMBLE_POWER_RAMPING_COUNTER–1)×preamblePowerRampingStep(1)
其中，preambleReceivedTargetPower表示目标接收功率初始值，DELTA_PREAMBLE表示前导码参数，PREAMBLE_POWER_RAMPING_COUNTER表示SSB和CSI-RS共用的功率爬升计数器的值，1表示预设值为1，preamblePowerRampingStep表示预设步长。
在本实施例中，目标接收功率初始值、前导码参数以及预设步长可以是网络设备侧预先配置的。
例如，在使用的是SSB专用的功率爬升计数器和/或CSI-RS专用的功率爬升计数器的情况下，可以根据以下的公式(2)计算目标接收功率：
目标接收功率＝preambleReceivedTargetPower+DELTA_PREAMBLE+(PREAMBLE_POWER_RAMPING_COUNTER_SSB+PREAMBLE_POWER_RAMPING_COUNTER_CSIRS–k)×preamblePowerRampingStep    (2)
其中，preambleReceivedTargetPower表示目标接收功率初始值，DELTA_PREAMBLE表示前导码参数，PREAMBLE_POWER_RAMPING_COUNTER_SSB表示SSB专用的功率爬升计数器的值，PREAMBLE_POWER_RAMPING_COUNTER_CSIRS表示CSI-RS资源专用的功率爬升计数器的值，k表示预设值为k，preamblePowerRampingStep表示预设步长。
在本实施例中，该方法还可以包括：(可选)
步骤204，该终端设备根据该目标接收功率确定随机接入前导码的发送功率。
在本实施例中，终端设备的低层(物理层)将目标接收功率与路损的和，以及网络配置的最大功率这两者之间较小的值作为随机接入前导码的发送功率，并使用该发送功率，在选择的随机接入资源上发送随机接入前导码(索引和资源由MAC层告知)。其中，该路损由系统信息提供的参考信号功率减高层滤波后的接收信号接收功率RSRP值获得。
在本实施例中，可选的，在步骤201中，MAC层完成随机接入资源选择时，该方法还可以包括(未图示)：在完成随机接入资源选择时，该终端设备的高层(例如MAC层)向低层(例如物理层)提供以下至少一个信息：选择的资源类型，包括SSB，CSI-RS等，选择的CSI-RS的CSI-RS资源标识，选择的SSB的SSB索引。
在本实施例中，不同的CSI-RS资源标识对应不同的物理资源，该物理资源包括频域和/或时域资源，以及一个物理资源块支持的端口数以及时频域分配，该CSI资源标识和物理资源的映射关系可以由网络设备预先配置。
在本实施中，该SSB索引用来确定一个SS burst中的SSB的位置，不同的SSB索引对应不同的物理资源，该物理资源包括频域和/或时域资源，该SSB索引和物理资源的映射关系可以由标准定义或由网络设备预先配置。
通过上述实施例，在当前随机接入资源选择选择了CSI-RS时，根据挂起指示挂 起功率爬升计数器，该方法容易实现，对终端设备影响较小，能够以较低的终端成本支持更多的功能。
实施例2
在本实施例中，提供一种功率控制方法，该方法与实施例1不同之处在于，并不是由终端设备的高层直接基于随机接入资源选择中的选择控制该功率爬升计数器，而是由终端设备的低层向高层发送挂起指示控制该功率爬升计数器。
图3是本实施例2的功率控制方法流程图，应用于终端设备侧。如图3所示，该方法包括：
步骤301，终端设备进行随机接入资源选择；
步骤302，在该随机接入资源选择选择了CSI-RS时，该终端设备的低层向高层发送挂起指示，其中，该挂起指示用于指示挂起功率爬升计数器；
在本实施例中，该步骤301的实施方式与实施例1中步骤201相同，此处不再赘述。
在步骤302中，在步骤301中随机接入资源选择时，即在当前第N次随机接入资源选择时，选择了CSI-RS，终端设备的低层向高层发送挂起指示，该高层可以是MAC层，该低层可以是物理层，该挂起指示用于指示挂起功率爬升计数器。
在本实施例中，终端设备的高层根据来自低层的该挂起指示，挂起该功率爬升计数器，该挂起的动作为了维持该功率爬升计数器的值不变，例如，该挂起的动作可以是不对该功率爬升计数器进行操作，也可以将该功率爬升计数器加0等，本实施例并不以此作为限制。
在本实施例中，该功率爬升计数器可以确定当前随机接入前导传输相较于上次随机接入前导传输是否增加功率，挂起该功率爬升计数器，即表示该功率爬升计数器的值保持不变，即不提升目标接收功率。因此，该方法还可以包括：(可选)
步骤303，该终端设备根据该功率爬升计数器的值计算目标接收功率；
步骤304，该终端设备根据该目标接收功率确定随机接入前导码的发送功率。
在本实施例中，该步骤303-304的实施方式与实施例1中步骤203和204相同，此处不再赘述。
在本实施例中，可选的，在步骤301中，MAC层完成随机接入资源选择时，该 方法还可以包括(未图示)：在完成随机接入资源选择时，该终端设备的高层(例如MAC层)向低层(例如物理层)提供以下至少一个信息：选择的资源类型，包括SSB，CSI-RS等，选择的CSI-RS的CSI-RS资源标识，选择的SSB的SSB索引。
在本实施例中，CSI-RS资源标识，SSB索引的含义请参考实施例1，此处不再赘述。
通过上述实施例，在当前随机接入资源选择选择了CSI-RS时，根据挂起指示挂起功率爬升计数器，该方法容易实现，对终端设备影响较小，能够以较低的终端成本支持更多的功能。
实施例3
在本实施例中，提供一种功率控制方法，该方法与实施例1，2不同之处在于，在当前随机接入资源选择选择了CSI-RS时，终端设备在随机接入前导码重传前改变空域发送滤波器，在这种情况下，终端设备的低层向高层发送挂起指示控制该功率爬升计数器。
图4是本实施例3的功率控制方法流程图，应用于终端设备侧。如图4所示，该方法包括：
步骤401，终端设备进行随机接入资源选择；
步骤402，在该随机接入资源选择选择了CSI-RS时，该终端设备在随机接入前导码重传前改变空域发送滤波器；
在本实施例中，该步骤401的实施方式请参考实施例1中步骤201，此处不再赘述。
在本实施例中，在步骤401中随机接入资源选择时，即在当前第N次随机接入资源选择时，选择了CSI-RS，该终端设备在随机接入前导码重传前改变空域发送滤波器；在该终端设备的低层改变空域发送滤波器时，终端设备的低层向高层发送挂起指示，该高层可以是MAC层，该低层可以是物理层，该挂起指示用于指示挂起功率爬升计数器。
因此，该方法还可以包括：
步骤403，在随机接入前导码重传前改变空域发送滤波器时，终端设备的低层向高层发送挂起指示，其中，该挂起指示用于指示挂起功率爬升计数器；
在本实施例中，终端设备的高层根据来自低层的该挂起指示，挂起该功率爬升计数器，该挂起的动作为了维持该功率爬升计数器的值不变，例如，该挂起的动作可以是不对该功率爬升计数器进行操作，也可以将该功率爬升计数器加0等，本实施例并不以此作为限制。
在本实施例中，该功率爬升计数器可以确定当前随机接入前导传输相较于上次随机接入前导传输是否增加功率，挂起该功率爬升计数器，即表示该功率爬升计数器的值保持不变，即不提升目标接收功率。因此，该方法还可以包括：(可选)
步骤404，该终端设备根据该功率爬升计数器的值计算目标接收功率；
步骤405，该终端设备根据该目标接收功率确定随机接入前导码的发送功率。
在本实施例中，该步骤404-405的实施方式与实施例1中步骤203和204相同，此处不再赘述。
在本实施例中，可选的，在步骤401中，MAC层完成随机接入资源选择时，该方法还可以包括(未图示)：在完成随机接入资源选择时，该终端设备的高层(例如MAC层)向低层(例如物理层)提供至少以下一个信息：选择的资源类型，包括SSB，CSI-RS等，选择的CSI-RS的CSI-RS资源标识，选择的SSB的SSB索引。
在本实施例中，CSI-RS资源标识，SSB索引的含义请参考实施例1，此处不再赘述。
通过上述实施例，在当前随机接入资源选择选择了CSI-RS时，随机接入前导码重传前改变空域发送滤波器，终端设备的低层向高层发送挂起指示，根据挂起指示挂起功率爬升计数器，该方法容易实现，对终端设备影响较小，能够以较低的终端成本支持更多的功能。
实施例4
在本实施例中，提供一种功率控制方法，该方法与实施例1不同之处在于，在当前或之前随机接入资源选择选择了CSI-RS且满足预定条件时，由终端设备的高层控制该功率爬升计数器。
图5是本实施例4的功率控制方法流程图，应用于终端设备侧。如图5所示，该方法包括：
步骤501，终端设备进行随机接入资源选择；
步骤502，在该随机接入资源选择和/或该选择之前的随机接入资源选择选择了CSI-RS且满足预定条件时，终端设备的高层确定收到了来自低层的挂起指示，其中，该挂起指示用于指示挂起功率爬升计数器。
在本实施例中，步骤501的实施方式与实施例1步骤201相同，此处不再赘述。
在本实施例中，在步骤501中的随机接入资源选择(当前次，即第N次随机接入资源选择)选择了CSI-RS；和/或该选择(第N次选择)之前的随机接入资源选择选择了CSI-RS的情况下，确定是否满足该预定条件，在满足时终端设备的高层确定收到了来自低层的挂起指示，以下具体说明该预定条件。
在本实施例中，该选择(第N次选择)之前的随机接入资源选择包括之前次(previous)，即第1次至第N-1次随机接入资源选择，或仅为前一次(last)，即第N-1次随机接入资源选择，该选择(第N次选择)之前的随机接入资源选择选择了CSI-RS表示第1次至第N-1次随机接入资源选择中的至少一次选择了CSI-RS，或表示第N-1次随机接入资源选择选择了CSI-RS。
在本实施例中，该预定条件是第N次随机接入资源选择和/或第N次之前的随机接入资源选择过程中，选择的SSB和/或CSI-RS发生改变，该改变可以表示选择的SSB和CSI-RS资源类型发生改变，和/或选择的CSI-RS资源标识发生改变，和/或选择的SSB索引发生改变。其中，该发生改变是指当前次(第N次)与之前次(第1至N-1次中的至少一次)相比或当前次(第N次)与前一次(第N-1次)相比，发生改变。
例如，选择的资源类型发生改变可以包含：选择的资源类型由SSB改变为CSI-RS，例如当前次随机接入资源选择选择了CSI-RS，之前次(第1至N-1次中的一次)或前一次(第N-1次)选择了SSB；或选择的资源类型由CSI-RS改变为SSB，例如当前次随机接入资源选择选择了SSB，之前次(第1至N-1次中的一次)或前一次(第N-1次)选择了CSI-RS。
例如，选择的CSI-RS资源标识发生改变可以包含：当前次随机接入资源选择选择了CSI-RS的ID为X，之前次(第1至N-1次中的一次)或前一次(第N-1次)选择了CSI-RS的ID为Y，X与Y不同。
例如，选择的SSB索引发生改变可以包含：当前次随机接入资源选择选择了SSB的索引为X，之前次(第1至N-1次中的一次)或前一次(第N-1次)选择了CSI-RS， 其对应同一个波束的SSB的索引为Y，X与Y不同；或当前次随机接入资源选择选择了CSI-RS，其对应同一个波束的SSB的索引为X，之前次(第1至N-1次中的一次)或前一次(第N-1次)选择了SSB，其SSB索引为Y，X与Y不同；或当前次随机接入资源选择选择了CSI-RS，其对应同一个波束的SSB的索引为X，之前次(第1至N-1次中的一次)或前一次(第N-1次)选择了CSI-RS，其对应同一个波束的SSB的索引或之前次(第1至N-1次中的一次)或前一次(第N-1次)选择了SSB索引为Y，X与Y不同。
在本实施例中，CSI-RS对应同一个波束的SSB，表示该CSI-RS和该SSB配置了准共址(quasi-colocation,QCL)关系，或该CSI-RS和该SSB具有相同收发点间时间和/或相同空间资源，即CSI-RS对应同一个波束的SSB表示CSI-RS的准共址的SSB，或与选择的CSI-RS具有相同收发点间时间和/或相同空间资源的SSB。
以上举例的预定条件可以单独实施，也可以组合实施。
例如，该预定条件可以是以下条件的一种：
选择的CSI-RS的CSI-RS资源标识改变；或，
选择的CSI-RS的对应同一个波束的SSB的SSB索引改变；或，
发生了SSB与CSI-RS资源类型的改变；或，
发生了SSB与CSI-RS资源类型的改变且选择的CSI-RS的对应同一个波束的SSB的SSB索引改变。
以上仅为示例，本实施例并不以此作为限制，该预定条件还可以是其他组合方式，此处不再一一举例。
在本实施例中，在将预定条件设定为资源类型改变时，该方法涉及低层(例如物理层)，这减少了低层与高层(例如MAC层)之间的层间交互，能够降低终端设备的成本。
在本实施例中，在步骤502中，在第1至N次中任一次选择了CSI-RS，且满足预定条件时，终端设备的高层确定(也可以是认为consider或假设assume)收到了来自低层的挂起指示，该高层可以是MAC层，该低层可以是物理层，该挂起指示用于指示挂起功率爬升计数器。
在本实施例中，终端设备的高层根据该挂起指示，挂起该功率爬升计数器，该挂起的动作为了维持该功率爬升计数器的值不变，例如，该挂起的动作可以是不对该功 率爬升计数器进行操作，也可以将该功率爬升计数器加0等，本实施例并不以此作为限制。
在本实施例中，该功率爬升计数器可以确定当前随机接入前导传输相较于上次随机接入前导传输是否增加功率，挂起该功率爬升计数器，即表示该功率爬升计数器的值保持不变，即不提升目标接收功率。
在本实施例中，在第1至N次随机接入资源选择时未选择CSI-RS和/或不满足预定条件时，可选的，该方法还可以包括：(未图示)该终端设备的高层在未收到低层发送的该挂起指示或选择的SSB未改变时，将该功率爬升计数器加1，由此，高层告知低层目标接收功率增加，该终端设备的高层在收到低层发送的该挂起指示或选择的SSB改变时，维持该功率爬升计数器不变，例如不对该功率爬升计数器进行操作，也可以将该功率爬升计数器加0。
在本实施例中，该方法还可以包括：(可选)
步骤503，该终端设备根据该功率爬升计数器的值计算目标接收功率；
步骤504，该终端设备根据该目标接收功率确定随机接入前导码的发送功率。
在本实施例中，步骤503-504的实施方式可以参考实施例1步骤203-204，此处不再赘述。
在本实施例中，可选的，在步骤501中，MAC层完成随机接入资源选择时，该方法还可以包括(未图示)：在完成随机接入资源选择时，该终端设备的高层(例如MAC层)向低层(例如物理层)提供选择的CSI-RS的CSI-RS资源标识和/或选择的CSI-RS对应同一个波束的SSB的SSB索引和/或选择的SSB的SSB索引，此处不再赘述。
通过上述实施例，在当前随机接入资源选择选择了CSI-RS时，根据挂起指示挂起功率爬升计数器，该方法容易实现，对终端设备影响较小，能够以较低的终端成本支持更多的功能。
实施例5
在本实施例中，提供一种功率控制方法，该方法与实施例2不同之处在于，在当前或之前随机接入资源选择选择了CSI-RS且满足预定条件时，由终端设备的低层向高层发送挂起指示控制该功率爬升计数器。
图6是本实施例4的功率控制方法流程图，应用于终端设备侧。如图5所示，该方法包括：
步骤601，终端设备进行随机接入资源选择；
步骤602，在该随机接入资源选择和/或该选择之前的随机接入资源选择选择了CSI-RS且满足预定条件时，该终端设备的低层向高层发送挂起指示，其中，该挂起指示用于指示挂起功率爬升计数器；
在本实施例中，步骤601的实施方式可以参考实施例1中步骤201，步骤602该预定条件的实施方式可以参考实施例4，该终端设备的低层向高层发送挂起指示的实施方式可以参考实施例2，此处不再赘述。
在本实施例中，在第1至N次随机接入资源选择时未选择CSI-RS和/或不满足预定条件时，可选的，该方法还可以包括：(未图示)该终端设备的高层在未收到低层发送的该挂起指示或选择的SSB未改变时，将该功率爬升计数器加1，由此，高层告知低层目标接收功率增加，该终端设备的高层在收到低层发送的该挂起指示或选择的SSB改变时，维持该功率爬升计数器不变，例如不对该功率爬升计数器进行操作，也可以将该功率爬升计数器加0。
在本实施例中，该方法还可以包括：(可选)
步骤603，该终端设备根据该功率爬升计数器的值计算目标接收功率；
步骤604，该终端设备根据该目标接收功率确定随机接入前导码的发送功率。
在本实施例中，步骤603-604的实施方式可以参考实施例1步骤203-204，此处不再赘述。
在本实施例中，可选的，在步骤601中，MAC层完成随机接入资源选择时，该方法还可以包括(未图示)：在完成随机接入资源选择时，该终端设备的高层(例如MAC层)向低层(例如物理层)提供选择的CSI-RS的CSI-RS资源标识和/或选择的CSI-RS对应同一个波束的SSB的SSB索引和/或选择的SSB的SSB索引，其具体实施方式可以参考实施例4，此处不再赘述。
通过上述实施例，在当前随机接入资源选择选择了CSI-RS时，根据挂起指示挂起功率爬升计数器，该方法容易实现，对终端设备影响较小，能够以较低的终端成本支持更多的功能。
实施例6
在本实施例中，提供一种功率控制方法，该方法与实施例3不同之处在于，在当前或之前随机接入资源选择选择了CSI-RS且满足预定条件时，由终端设备的低层向高层发送挂起指示控制该功率爬升计数器。
图7是本实施例6的功率控制方法流程图，应用于终端设备侧。如图7所示，该方法包括：
步骤701，终端设备进行随机接入资源选择；
步骤702，在该随机接入资源选择和/或该选择之前的随机接入资源选择选择了CSI-RS且满足预定条件时，该终端设备在随机接入前导码重传前改变空域发送滤波器；
在本实施例中，步骤701的实施方式可以参考实施例1中步骤201，步骤702该预定条件的实施方式可以参考实施例4，该终端设备在随机接入前导码重传前改变空域发送滤波器的实施方式可以参考实施例3，此处不再赘述。
在本实施例中，在第1至N次随机接入资源选择时未选择CSI-RS和/或不满足预定条件时，可选的，该方法还可以包括：(未图示)该终端设备的高层在未收到低层发送的该挂起指示或选择的SSB未改变时，将该功率爬升计数器加1，由此，高层告知低层目标接收功率增加，该终端设备的高层在收到低层发送的该挂起指示或选择的SSB改变时，维持该功率爬升计数器不变，例如不对该功率爬升计数器进行操作，也可以将该功率爬升计数器加0。
在本实施例中，该方法还可以包括：
步骤703，在随机接入前导码重传前改变空域发送滤波器时，终端设备的低层向高层发送挂起指示，其中，该挂起指示用于指示挂起功率爬升计数器；
步骤704，该终端设备根据该功率爬升计数器的值计算目标接收功率；
步骤705，该终端设备根据该目标接收功率确定随机接入前导码的发送功率。
在本实施例中，该步骤703-705的实施方式与实施例3中步骤403-405相同，此处不再赘述。
在本实施例中，可选的，在步骤701中，MAC层完成随机接入资源选择时，该方法还可以包括(未图示)：在完成随机接入资源选择时，该终端设备的高层(例如MAC层)向低层(例如物理层)提供选择的CSI-RS的CSI-RS资源标识和/或选择的 CSI-RS对应同一个波束的SSB的SSB索引和/或选择的SSB的SSB索引，其具体实施方式可以参考实施例4，此处不再赘述。
在本实施例中，CSI-RS资源标识，SSB索引的含义请参考实施例1，此处不再赘述。
通过上述实施例，在当前随机接入资源选择选择了CSI-RS时，随机接入前导码重传前改变空域发送滤波器，终端设备的低层向高层发送挂起指示，根据挂起指示挂起功率爬升计数器，该方法容易实现，对终端设备影响较小，能够以较低的终端成本支持更多的功能。
实施例7
本实施例7还提供一种功率控制方法，该方法根据选择的SSB或CSI-RS对应的随机接入机会的变化情况来控制功率爬升计数器。
图8是本实施例7的功率控制方法流程图，应用于终端设备侧。如图8所示，该方法包括：
步骤801，终端设备进行随机接入资源选择；
步骤802，该终端设备根据选择的随机接入机会(RO，RA occasions)的变化情况，控制该功率爬升计数器；或在终端设备的高层未收到来自低层用于指示挂起功率爬升计数器的挂起指示时，根据选择的随机接入机会的变化情况，控制该功率爬升计数器。
在本实施例中，在一次随机接入过程发起后，终端设备(高层，例如MAC层)可以基于网络设备配置的SSB和/或CSI-RS的无线质量、是否有对应的专用资源/前导码选择SSB或CSI-RS，或者随意选择一个SSB，在该一次随机接入过程未完成的情况下，在未成功接收到RAR或竞争解决未成功时，终端设备重复执行随机接入资源选择的过程，该步骤801中的随机接入资源选择为第N次(即当前次，N为大于1的整数)的随机接入资源选择。
在本实施例中，在随机接入前导码的传输未达到最大次数时，认为该一次随机接入过程未完成，在该一次随机接入过程中，在随机接入响应的接收窗超时且尚未收到响应的随机接入响应时，终端设备确定(认为)随机接入响应接收未成功，或者在竞争解决定时器超时时，终端设备确定(认为)竞争解决未成功，该终端设备执行步骤 801。
在一个实施方式中，只有在终端设备的高层未收到来自低层用于指示挂起功率爬升计数器的挂起指示时，才根据选择的随机接入机会的变化情况控制功率爬升计数器，在高层收到来自低层的挂起指示时，根据其他因素控制功率爬升计数器，例如高层收到来自低层的挂起指示时，维持功率爬升计数器不变。
在该实施方式中，在随机接入机会改变时，高层(例如MAC层)维持功率爬升计数器不变；在随机接入机会未改变时，高层(例如MAC层)将功率爬升计数器加1。
在一个实施方式中，不需要考虑高层是否收到来自低层的挂起指示，都根据选择的随机接入机会的变化情况控制功率爬升计数器。
在该实施方式中，在随机接入机会改变时，高层(例如MAC层)维持功率爬升计数器不变，或低层(例如物理层)向高层(例如MAC层)发送用于指示挂起功率爬升计数器的挂起指示；在随机接入机会未改变时，高层(例如MAC层)将功率爬升计数器加1。
在该实施方式中，在随机接入前导码重传前，随机接入机会改变时，低层(例如物理层)确定(也可以是认为)空域发送滤波器改变，或低层(例如物理层)改变空域发送滤波器。
在本实施例中，该选择的随机接入机会包括选择的SSB对应的RO或选择的CSI-RS对应的RO。在本实施例中，终端设备可以根据选择的CSI-RS或SSB以及CSI-RS/SSB与随机接入机会的映射关系确定随机接入机会(随机接入资源)，该映射关系可以是网络设备侧预先配置给终端设备的，该终端设备可以在上述RO发送随机接入前导码，与该CSI-RS/SSB对应的RO的数量可以为至少一个(M个，M为大于0的整数)。
在本实施例中，终端设备根据选择的SSB对应的随机接入机会(RO，RA occasions)或选择的CSI-RS对应的随机接入机会的变化情况，控制该功率爬升计数器。
在一个实施方式中，在终端设备的高层未收到来自低层用于指示挂起功率爬升计数器的挂起指示时，根据选择的随机接入机会的变化情况控制功率爬升计数器的实施方式下，在步骤801中选择了CSI-RS时，根据CSI-RS对应的随机接入机会的变化 情况控制该功率爬升计数器，例如，在未改变时，MAC层控制功率爬升计数器加1，在改变时，MAC层保持该功率爬升计数器不变，或者根据SSB对应的随机接入机会的变化情况控制该功率爬升计数器，例如，在未改变时，MAC层控制功率爬升计数器加1，在改变时，MAC层保持该功率爬升计数器不变。
在一个实施方式中，在根据选择的随机接入机会的变化情况控制功率爬升计数器的实施方式下，在步骤801中选择了CSI-RS时，根据CSI-RS对应的随机接入机会的变化情况控制该功率爬升计数器，例如，在未改变时，MAC层控制功率爬升计数器加1，在改变时，MAC层保持该功率爬升计数器不变，或物理层向MAC层发送挂起指示；或者根据SSB对应的随机接入机会的变化情况控制该功率爬升计数器，例如，在未改变时，MAC层控制功率爬升计数器加1，在改变时，MAC层保持该功率爬升计数器不变或物理层向MAC层发送挂起指示。
在该实施方式中，在随机接入前导码重传前，CSI-RS或SSB对应的随机接入机会改变时，物理层认为空域发送滤波器改变，或物理层改变空域发送滤波器。
在本实施例中，在步骤802中，随机接入机会(RO，RA occasions)的变化情况是指步骤801中，即当前第N次随机接入资源选择选择的随机接入机会与之前次(previous)，即第1至N-1次中任一次随机接入资源选择选择的随机接入机会相比的变化情况，或者当前第N次随机接入资源选择选择的随机接入机会与前一次(last)，即第N-1次随机接入资源选择选择的随机接入机会相比的变化情况，例如选择的SSB对应的随机接入机会(RO，RA occasions)或选择的CSI-RS对应的随机接入机会的变化情况是指步骤801中，即当前第N次随机接入资源选择中选择的SSB对应的随机接入机会或CSI-RS对应的随机接入机会与之前次(previous)，即第1至N-1次中任一次随机接入资源选择中选择的SSB对应的随机接入机会或CSI-RS对应的随机接入机会相比的变化情况，或者当前第N次随机接入资源选择中选择的SSB对应的随机接入机会或CSI-RS对应的随机接入机会与前一次(last)，即第N-1次随机接入资源选择中选择的SSB对应的随机接入机会或CSI-RS对应的随机接入机会相比的变化情况。
在本实施例中，在步骤802中，该方法还包括：(可选，未图示)判断选择的随机接入机会是否未发生改变，即判断选择的SSB对应的随机接入机会(RO，RA occasions)或选择的CSI-RS对应的随机接入机会是否未发生改变，例如，在第N次 随机接入资源选择的CSI-RS/SSB对应的M个RO与之前次(第1至N-1次中的任一次)随机接入资源选择的CSI-RS/SSB对应的Z个RO中有至少一个(包括所有)RO相同时，表示未发生改变，否则表示发生改变。或者，例如在第N次随机接入资源选择的CSI-RS/SSB对应的M个RO与之前次(第1至N-1次中的任一次)随机接入资源选择的CSI-RS/SSB对应的Z个RO中有至少一个(包括所有)RO不相同时，表示发生改变，否则表示未发生改变；
在本实施例中，上述RO不相同，表示该RO所对应的物理资源不同，RO相同，表示该RO所对应的物理资源相同。
在本实施例中，可以根据以下参数的至少一个确定RO所对应的物理资源：物理随机接入信道PRACH配置索引，一个时间实例(time instance)里频分复用的PRACH传输机会的数量，频域相对于索引为0的物理资源块(PRB 0)的最低PRACH传输机会的偏移；该RO所对应的物理资源不同包括以上参数中的至少一个不同，该RO所对应的物理资源相同包括以上参数都相同。
在本实施例中，该方法还可以包括(可选)：
步骤803，该终端设备根据该功率爬升计数器的值计算目标接收功率；
步骤804，该终端设备根据该目标接收功率确定随机接入前导码的发送功率。
在本实施例中，该步骤803-804的实施方式与实施例3中步骤203-204相同，此处不再赘述。
在本实施例中，可选的，在步骤701中，MAC层完成随机接入资源选择时，该方法还可以包括(未图示)：在完成随机接入资源选择时，该终端设备的高层(例如MAC层)向低层(例如物理层)提供选择的CSI-RS的CSI-RS资源标识和/或选择的CSI-RS对应同一个波束的SSB的SSB索引和/或选择的SSB的SSB索引，其具体实施方式可以参考实施例4，此处不再赘述。
在本实施例中，CSI-RS资源标识，SSB索引的含义请参考实施例1，此处不再赘述。
通过上述实施例，根据选择的随机接入机会的变化情况来控制功率爬升计数器，由此，在随机接入机会改变的情况下，控制功率爬升计数器不变，由此限制了发送功率，减少此次随机接入前导码的传输在网络侧对其他终端设备使用相同随机接入机会传输的随机接入前导码的干扰。
实施例8
图9A是本实施例8的功率控制方法流程图，应用于终端设备侧。如图9A所示，该方法包括：
步骤901，终端设备进行随机接入资源选择；
步骤902，在该随机接入资源选择选择了CSI-RS，且该随机接入资源选择之前的随机接入资源选择选择了CSI-RS的情况下，根据选择的CSI-RS的变化情况，或根据选择的CSI-RS的变化情况和根据选择的CSI-RS对应同一个波束的SSB的存在情况和/或变化情况，控制功率爬升计数器。
在本实施例中，步骤901的实施方式与实施例1中步骤201相同，此处不再赘述。
在本实施例中，在步骤901中选择了CSI-RS时，即当前次(第N次)随机接入资源选择选择了CSI-RS(第一CSI-RS)，且之前次(previous)，即第1至第N-1次随机接入资源选择中至少一次选择了CSI-RS(第二CSI-RS)，或前一次(last)，即第N-1次随机接入资源选择中选择了CSI-RS(第二CSI-RS)时，在选择的第一CSI-RS和第二CSI-RS相同时，控制功率爬升计数器加1；在选择的第一CSI-RS和第二CSI-RS不同时，根据选择的CSI-RS对应同一个波束的SSB的存在情况控制功率爬升计数器，即判断选择的第一CSI-RS和第二CSI-RS是否存在有对应同一个波束的SSB，在不存在时功率爬升计数器维持不变，在存在时，根据选择的CSI-RS对应同一个波束的SSB的变化情况控制功率爬升计数器，即判断选择的第一CSI-RS对应同一个波束的第一SSB和第二CSI-RS对应同一个波束的第二SSB是否相同，在第一SSB和第二SSB相同时，控制功率爬升计数器加1，否则控制功率爬升计数器维持不变。其中，CSI对应同一个波束的SSB的含义请详见实施例4，此处不再赘述。
其中，在选择的第一CSI-RS的资源标识和第二CSI-RS的资源标识相同时，表示选择的CSI-RS未改变，在选择的第一CSI-RS的资源标识和第二CSI-RS的资源标识不相同时，表示CSI-RS发生改变。
其中，在与选择的第一CSI-RS对应同一个波束的第一SSB的索引和与第二CSI-RS对应同一个波束的第二SSB的索引相同时，表示选择的CSI-RS对应同一个波束的SSB未改变，在选择的第一CSI-RS的对应同一个波束的第一SSB的索引和第二CSI-RS的对应同一个波束的第二的SSB的索引不相同时，表示选择的CSI-RS 对应同一个波束的SSB发生改变。
在本实施例中，该方法还可以包括(可选)：
步骤903，该终端设备根据该功率爬升计数器的值计算目标接收功率；
步骤904，该终端设备根据该目标接收功率确定随机接入前导码的发送功率。
在本实施例中，该步骤803-804的实施方式与实施例3中步骤203-204相同，此处不再赘述。
图9B是本实施例8的功率控制方法流程图，如图9B所示，该方法包括：
步骤901’，终端设备进行随机接入资源选择；
步骤902’，在该随机接入资源选择选择了第一CSI-RS，且该随机接入资源选择之前的随机接入资源选择选择了第二CSI-RS的情况下，判断该第一CSI-RS和第二CSI-RS是否相同，在相同时，执行步骤903’，否则执行步骤904’；
步骤903’，功率爬升计数器加1；
步骤904’，判断第一CSI-RS是否存在对应同一个波束的第一SSB，第二CSI-RS是否存在对应同一个波束的第二SSB，在判断结果为都存在时，执行步骤905’，否则执行步骤906’；
步骤905’，判断第一SSB和第二SSB是否相同，在相同时，执行步骤903’，否则执行步骤906’；
步骤906’，功率爬升计数器维持不变；
步骤907’，该终端设备根据该功率爬升计数器的值计算目标接收功率；
步骤908’，该终端设备根据该目标接收功率确定随机接入前导码的发送功率。
通过上述实施例，在当前随机接入资源选择和之前随机接入资源选择都选择了CSI-RS时，根据CSI-RS的变化情况，CSI-RS的对应同一个波束的SSB的存在情况和/或变化情况控制功率爬升计数器，该方法容易实现，对终端设备影响较小，能够以较低的终端成本支持更多的功能。
实施例9
本实施例9还提供一种功率控制装置。由于该装置解决问题的原理与实施例1～6的方法类似，因此其具体的实施可以参考实施例1～6的方法的实施，内容相同之处不再重复说明。
图10是本实施例9的功率控制装置示意图。如图10所示，装置1000包括：
选择单元1001，其用于进行随机接入资源选择；
处理单元1002，其用于在选择单元1001在该随机接入资源选择选择了CSI-RS，或在该随机接入资源选择和/或之前的随机接入资源选择时选择了CSI-RS且满足预定条件时，该处理单元1002在随机接入前导码重传前改变空域发送滤波器，或挂起功率爬升计数器。
在本实施例中，选择单元1001和处理单元1002的实施方式请参考实施例1至6，该预定条件的实施方式请参考实施例4，此处不再赘述。
在本实施例中，该处理单元1002可以根据挂起指示，挂起功率爬升计数器；其中，在选择单元1001在该随机接入资源选择时选择了CSI-RS，或在该随机接入资源选择和/或之前的随机接入资源选择时选择了CSI-RS且满足预定条件时，该终端设备的高层确定收到了来自低层的该挂起指示，或该终端设备的低层向高层发送该挂起指示。
在本实施例中，处理单元1002在随机接入前导码重传前改变空域发送滤波器时，控制终端设备的低层向高层发送该挂起指示。
在本实施例中，该处理单元1002还可以用于根据该功率爬升计数器的值计算目标接收功率，根据该目标接收功率确定随机接入前导码的发送功率，其具体实施方式可以参考实施例1，此处不再赘述。
在本实施例中，选择单元1001实施方式参考实施例1至3时，完成随机接入资源选择时，控制该终端设备的高层(例如MAC层)向低层(例如物理层)提供以下至少一个信息：选择的资源类型，包括SSB，CSI-RS等，选择的CSI-RS的CSI-RS资源标识，选择的SSB的SSB索引，其具体实施方式可以参考实施例1，此处不再赘述。
在本实施例中，选择单元1001实施方式参考实施例4至8时，完成随机接入资源选择时，控制该终端设备的高层(例如MAC层)向低层(例如物理层)提供选择的CSI-RS的CSI-RS资源标识和/或选择的CSI-RS对应同一个波束的SSB的SSB索引和/或选择的SSB的SSB索引，其实施方式可以参考实施例4，此处不再赘述。
在本实施例中，选择单元1001在第1至N次随机接入资源选择时未选择CSI-RS和/或不满足预定条件时，可选的，该处理单元1002在该终端设备的高层在未收到低层发送的该挂起指示或选择的SSB未改变时，将该功率爬升计数器加1，该终端设备 的高层在收到低层发送的该挂起指示或选择的SSB改变时，维持该功率爬升计数器不变，例如不对该功率爬升计数器进行操作，也可以将该功率爬升计数器加0，其具体实施方式可以参考实施例4，此处不再赘述。
通过上述实施例，在当前随机接入资源选择选择了CSI-RS时，根据挂起指示挂起功率爬升计数器，该方法容易实现，对终端设备影响较小，能够以较低的终端成本支持更多的功能。
实施例10
本实施例10还提供一种功率控制装置。由于该装置解决问题的原理与实施例7的方法类似，因此其具体的实施可以参考实施例7的方法的实施，内容相同之处不再重复说明。
图11是本实施例10的功率控制装置示意图。如图11所示，装置1100包括：
选择单元1101，其用于进行随机接入资源选择；
控制单元1102，其用于根据选择的随机接入机会的变化情况，控制该功率爬升计数器；或在终端设备的高层未收到来自低层用于指示挂起功率爬升计数器的挂起指示时，根据选择的随机接入机会的变化情况，控制该功率爬升计数器。
在本实施例中，该选择单元1101和控制单元1002的实施方式与实施例7类似，此处不再赘述。
在本实施例中，该控制单元1102还可以用于根据该功率爬升计数器的值计算目标接收功率，根据该目标接收功率确定随机接入前导码的发送功率，其具体实施方式可以参考实施例1，此处不再赘述。
在本实施例中，该控制单元1102在选择的随机接入机会没有发生改变的情况下，将该功率爬升计数器加1，否则维持该功率爬升计数器不变，该选择的随机接入机会包括选择的SSB对应的RO或选择的CSI-RS对应的RO。
在本实施例中，该控制单元1102在至少一个随机接入机会相同时，确定该随机接入机会没有发生改变。
通过上述实施例，根据选择的SSB或CSI-RS对应的随机接入机会的变化情况来控制功率爬升计数器，由此，在随机接入机会改变的情况下，控制功率爬升计数器不变，由此限制了发送功率，减少此次随机接入前导码的传输在网络侧对其他终端设备 使用相同随机接入机会传输的随机接入前导码的干扰。
实施例11
本实施例11还提供一种功率控制装置。由于该装置解决问题的原理与实施例8的方法类似，因此其具体的实施可以参考实施例8的方法的实施，内容相同之处不再重复说明。
图12是本实施例11的功率控制装置示意图。如图12所示，装置1200包括：
选择单元1201，其用于进行随机接入资源选择；
控制单元1202，该选择单元1201在该随机接入资源选择选择了CSI-RS(第一CSI-RS)，且该随机接入资源选择之前的随机接入资源选择选择了CSI-RS(第二CSI-RS)的情况下，根据选择的CSI-RS的变化情况，或根据选择的CSI-RS的变化情况和根据选择的CSI-RS对应同一个波束的SSB的存在情况和/或变化情况，控制功率爬升计数器。
在本实施例中，选择单元1201和控制单元1202的实施方式可以参考实施例8步骤901-902，此处不再赘述。
在本实施例中，该控制单元1202可以包括：(未图示)第一控制模块，其用于将功率爬升计数器加1；第二控制模块，其用于将功率爬升计数器维持不变；
第一判断模块，其用于判断该第一CSI-RS和第二CSI-RS是否相同；在相同时，由第一控制模块控制功率爬升计数器；
第二判断模块，其用于第一判断模块判断结果为不相同时，判断第一CSI-RS是否存在对应同一个波束的第一SSB，第二CSI-RS是否存在对应同一个波束的第二SSB，在判断结果为不存在时，由第二控制模块控制功率爬升计数器；
第二判断模块，其用于在第二判断模块判断结果为存在时，判断第一SSB和第二SSB是否相同，在相同时，由第一控制模块控制功率爬升计数器，在不同时，由第二控制模块控制功率爬升计数器。其具体实施方式可以参考实施例8中步骤902’-906’，此处不再赘述。
在本实施例中，该控制单元1202还可以用于根据该功率爬升计数器的值计算目标接收功率；以及根据该目标接收功率确定随机接入前导码的发送功率。其实施方式可以参考实施例1，此处不再赘述。
通过上述实施例，在当前随机接入资源选择选择了CSI-RS时，根据CSI-RS的变化情况或CSI-RS的对应同一个波束的SSB的变化情况控制功率爬升计数器，该方法容易实现，对终端设备影响较小，能够以较低的终端成本支持更多的功能。
实施例12
本实施例还提供一种通信系统，可以参考图1，与实施例1至8相同的内容不再赘述。在本实施例中，通信系统100可以包括：
网络设备101，其用于向终端设备配置SSB和/或CSI-RS与随机接入资源(机会)的映射关系，向终端设备配置用于计算目标接收功率的SSB和CSI-RS公用的参数，或计算目标接收功率的SSB专用的参数和CSI-RS专用的参数，接收终端设备发送的随机接入前导码，并向终端设备返回RAR。
终端设备102，其配置有如实施例1至8任意一个所述的功率控制装置1000或1100或1200。
图13是本实施例中随机接入方法流程图，如图13所示，针对一次随机接入过程，该方法包括：
步骤1301，终端设备的MAC层进行随机接入资源选择；
步骤1302，判断选择CSI-RS或SSB是否满足一定条件；
在本实施例中，该一定条件可以是在随机接入资源选择时，选择了CSI-RS；或，在该随机接入资源选择或之前的随机接入资源选择选择了CSI-RS且满足实施例4中所述的预定条件；或，在终端设备的高层未收到来自低层用于指示挂起功率爬升计数器的挂起指示时(可选)，选择的随机接入机会发生变化；或，在当前次和之前次中的至少一次选择了CSI-RS时，选择的CSI-RS未改变，或选择的CSI-RS改变，选择的CSI-RS对应同一个波束的SSB的不存在，或选择的CSI-RS改变，选择的CSI-RS对应同一个波束的SSB的存在，且该SSB改变，以上具体可以参考实施例1-8，此处不再赘述。
可选的，该方法还可以包括：
步骤1302’，根据判断的结果，在满足时，物理层可以向MAC层发送挂起指示，或改变空域发送发送滤波器，物理层可以向MAC层发送挂起指示，或MAC层控制功率爬升计数器，例如，不满足时，将该功率爬升计数器加1，满足时维持不变(具 体可以参考实施例1至8)；
步骤1303，MAC层根据功率爬升计数器的值计算目标接收功率；
步骤1304，MAC层向物理层通知目标接收功率，随机接入前导码的索引，随机接入资源选择的结果，可选的，还可以通知选择的CSI-RS资源标识和或CSI-RS对应同一个波束的SSB的SSB索引，或选择的SSB的SSB索引；
步骤1305，物理层根据目标接收功率计算随机接入前导码的发送功率；
步骤1306，物理层以该发送功率向网络设备发送随机接入前导码；
步骤1307，网络设备接收该随机接入前导码，向终端设备返回RAR；
步骤1308，终端设备的MAC层确定是否接收到RAR，在该随机接入过程是基于非竞争的时，判断结果为是时，结束该过程，或者否则返回步骤1301；在该随机接入过程是基于竞争的时，判断结果为是时，执行步骤1309，或者否则返回步骤1301；
在本实施例中，该RAR可以由PDCCH承载，终端设备可以解扰PDCCH，在解扰成功读取到RAR时，确定接收到RAR，其具体可以参考现有技术，此处不再赘述。
步骤1309，终端设备的MAC层确定竞争解决是否成功，判断结果为是时，结束该过程，或者否则返回步骤1301。
本发明实施例还提供一种终端设备，但本发明不限于此，还可以是其他的设备。
图14是本发明实施例的终端设备的示意图。如图14所示，该终端设备1400可以包括处理器1410和存储器1420；存储器1420存储有数据和程序，并耦合到处理器1410。值得注意的是，该图是示例性的；还可以使用其他类型的结构，来补充或代替该结构，以实现电信功能或其他功能。
例如，处理器1410可以被配置为执行程序而实现如实施例1至6任一个所述的功率控制方法。例如处理器1410可以被配置为进行如下的控制：进行随机接入资源选择；该随机接入资源选择选择了CSI-RS，或在该随机接入资源选择和/或之前的随机接入资源选择选择了CSI-RS且满足预定条件时，控制该终端设备的高层确定收到了来自低层的挂起指示，或控制该终端设备的低层向高层发送挂起指示，或在随机接入前导码重传前改变空域发送滤波器，或根据挂起指示挂起功率爬升计数器，其中，该挂起指示用于指示挂起功率爬升计数器。
例如，处理器1410可以被配置为执行程序而实现如实施例7所述的功率控制方法。例如处理器1410可以被配置为进行如下的控制：进行随机接入资源选择；根据 选择的随机接入机会的变化情况，控制该功率爬升计数器；或在终端设备的高层未收到来自低层用于指示挂起功率爬升计数器的挂起指示时，根据选择的随机接入机会的变化情况，控制该功率爬升计数器。
例如，处理器1410可以被配置为执行程序而实现如实施例8所述的功率控制方法。例如处理器1410可以被配置为进行如下的控制：进行随机接入资源选择；在该随机接入资源选择时选择了CSI-RS，且该随机接入资源选择之前的随机接入资源选择时选择了CSI-RS的情况下，根据选择的CSI-RS的变化情况，或根据选择的CSI-RS的变化情况和根据选择的CSI-RS对应同一个波束的SSB的存在情况和/或变化情况，控制功率爬升计数器。
如图14所示，该终端设备1400还可以包括：通信模块1430、输入单元1440、显示器1450、电源1460。其中，上述部件的功能与现有技术类似，此处不再赘述。值得注意的是，终端设备1400也并不是必须要包括图14中所示的所有部件，上述部件并不是必需的；此外，终端设备1400还可以包括图14中没有示出的部件，可以参考现有技术。
本发明实施例还提供一种存储有计算机可读程序的存储介质，其中所述计算机可读程序使得功率控制装置或终端设备执行实施例1至8任一个所述的功率控制方法。
本发明实施例还提供一种计算机可读程序，其中当在功率控制装置或终端设备中执行所述程序时，所述程序使得所述功率控制装置或终端设备执行实施例1至8任一个所述的功率控制方法。
本发明以上的装置和方法可以由硬件实现，也可以由硬件结合软件实现。本发明涉及这样的计算机可读程序，当该程序被逻辑部件所执行时，能够使该逻辑部件实现上文所述的装置或构成部件，或使该逻辑部件实现上文所述的各种方法或步骤。本发明还涉及用于存储以上程序的存储介质，如硬盘、磁盘、光盘、DVD、flash存储器等。
结合本发明实施例描述的在各装置中的各处理方法可直接体现为硬件、由处理器执行的软件模块或二者组合。例如，图10-12中所示的功能框图中的一个或多个和/或功能框图的一个或多个组合，既可以对应于计算机程序流程的各个软件模块，亦可 以对应于各个硬件模块。这些软件模块，可以分别对应于图2-9A-9B所示的各个步骤。这些硬件模块例如可利用现场可编程门阵列(FPGA)将这些软件模块固化而实现。
软件模块可以位于RAM存储器、闪存、ROM存储器、EPROM存储器、EEPROM存储器、寄存器、硬盘、移动磁盘、CD-ROM或者本领域已知的任何其它形式的存储介质。可以将一种存储介质耦接至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息；或者该存储介质可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。该软件模块可以存储在移动终端的存储器中，也可以存储在可插入移动终端的存储卡中。例如，若设备(例如移动终端)采用的是较大容量的MEGA-SIM卡或者大容量的闪存装置，则该软件模块可存储在该MEGA-SIM卡或者大容量的闪存装置中。
针对图10-12描述的功能框图中的一个或多个和/或功能框图的一个或多个组合，可以实现为用于执行本申请所描述功能的通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或其它可编程逻辑器件、分立门或晶体管逻辑器件、分立硬件组件、或者其任意适当组合。针对图2-9A-9B描述的功能框图中的一个或多个和/或功能框图的一个或多个组合，还可以实现为计算设备的组合，例如，DSP和微处理器的组合、多个微处理器、与DSP通信结合的一个或多个微处理器或者任何其它这种配置。
以上结合具体的实施方式对本发明进行了描述，但本领域技术人员应该清楚，这些描述都是示例性的，并不是对本发明保护范围的限制。本领域技术人员可以根据本发明的原理对本发明做出各种变型和修改，这些变型和修改也在本发明的范围内。
附记1、一种功率控制方法，其中，所述方法包括：
终端设备进行随机接入资源选择；
在所述随机接入资源选择选择了CSI-RS，或在所述随机接入资源选择和/或所述选择之前的随机接入资源选择选择了CSI-RS且满足预定条件时，所述终端设备的高层确定收到了来自低层的挂起指示，其中，所述挂起指示用于指示挂起功率爬升计数器。
2、根据附记1所述的方法，其中，所述预定条件包括：所述随机接入资源选择和/或所述选择之前的随机接入资源选择时选择的SSB和/或CSI-RS发生改变。
3、根据附记1或2所述的方法，其中，所述预定条件包括：
所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的SSB或CSI-RS的资源类型发生改变，和/或，
所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的CSI-RS的CSI-RS资源标识改变，和/或，
所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的CSI-RS对应同一个波束的SSB的SSB索引改变。
4、根据附记1或2或3所述的方法，其中，所述预定条件包括：
所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的CSI-RS的CSI-RS资源标识改变，或，
所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的CSI-RS对应同一个波束的SSB的SSB索引改变，或，
所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的资源类型由CSI-RS更改为SSB，或，
所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的资源类型由SSB更改为CSI-RS，或，
所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的资源类型由CSI-RS更改为SSB，且选择的CSI-RS对应同一个波束的SSB的SSB索引改变，或，
所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的资源类型由SSB更改为CSI-RS，且选择的CSI-RS对应同一个波束的SSB的SSB索引改变。
5、根据附记1至4任一项所述的方法，其中，所述方法还包括：
在所述终端设备的高层未收到低层发送的所述挂起指示或选择的SSB未改变时，将所述功率爬升计数器加1，和/或，
在终端设备的高层收到终端设备的低层发送的所述挂起指示或选择的SSB改变时，所述功率爬升计数器维持不变。
6、根据附记1至5任一项所述的方法，其中，在随机接入过程未完成，且随机接入响应接收未成功或竞争解决未成功的情况下，所述终端设备进行随机接入资源选择的步骤。
7、根据附记1至6任一项所述的方法，其中，所述方法还包括：
在完成随机接入资源选择时，所述终端设备的高层向低层提供选择的资源类型和/或选择的CSI-RS的CSI-RS资源标识和/或选择的SSB的SSB索引和/或选择的CSI-RS对应同一个波束的SSB的SSB索引。
8、根据附记1至7任一项所述的方法，其中，所述方法还包括：
所述终端设备根据所述目标接收功率确定随机接入前导码的发送功率。
9、根据附记8所述的方法，其中，所述方法还包括：
所述终端设备根据所述目标接收功率确定随机接入前导码的发送功率。
10、一种功率控制方法，其中，所述方法包括：
终端设备进行随机接入资源选择；
在所述随机接入资源选择选择了CSI-RS，或在所述随机接入资源选择和/或所述选择之前的随机接入资源选择选择了CSI-RS且满足预定条件时，所述终端设备的低层向高层发送挂起指示，其中，所述挂起指示用于指示挂起功率爬升计数器。
11、根据附记10所述的方法，其中，所述预定条件包括：所述随机接入资源选择和/或所述选择之前的随机接入资源选择时选择的SSB和/或CSI-RS发生改变。
12、根据附记10或11所述的方法，其中，所述预定条件包括：
所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的SSB或CSI-RS的资源类型发生改变，和/或，
所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的CSI-RS的CSI-RS资源标识改变，和/或，
所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的CSI-RS对应同一个波束的SSB的SSB索引改变。
13、根据附记10或11或12所述的方法，其中，所述预定条件包括：
所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的CSI-RS的CSI-RS资源标识改变，或，
所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的CSI-RS对应同一个波束的SSB的SSB索引改变，或，
所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的资源类型由CSI-RS更改为SSB，或，
所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的资源类 型由SSB更改为CSI-RS，或，
所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的资源类型由CSI-RS更改为SSB，且选择的CSI-RS对应同一个波束的SSB的SSB索引改变，或，
所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的资源类型由SSB更改为CSI-RS，且选择的CSI-RS对应同一个波束的SSB的SSB索引改变。
14、根据附记10至13任一项所述的方法，其中，所述方法还包括：
在所述终端设备的高层未收到低层发送的所述挂起指示或选择的SSB未改变时，将所述功率爬升计数器加1，和/或，
在终端设备的高层收到终端设备的低层发送的所述挂起指示或选择的SSB改变时，所述功率爬升计数器维持不变。
15、根据附记10至14任一项所述的方法，其中，在随机接入过程未完成，且随机接入响应接收未成功或竞争解决未成功的情况下，所述终端设备进行随机接入资源选择的步骤。
16、根据附记10至15任一项所述的方法，其中，所述方法还包括：
在完成随机接入资源选择时，所述终端设备的高层向低层提供选择的资源类型和/或选择的CSI-RS的CSI-RS资源标识和/或选择的SSB的SSB索引和/或选择的CSI-RS对应同一个波束的SSB的SSB索引。
17、根据附记10至16任一项所述的方法，其中，所述方法还包括：
所述终端设备根据所述目标接收功率确定随机接入前导码的发送功率。
18、根据附记17所述的方法，其中，所述方法还包括：
所述终端设备根据所述目标接收功率确定随机接入前导码的发送功率。
19、一种功率控制方法，其中，所述方法包括：
终端设备进行随机接入资源选择；
在所述随机接入资源选择选择了CSI-RS，或在所述随机接入资源选择和/或所述选择之前的随机接入资源选择选择了CSI-RS且满足预定条件时，所述终端设备在随机接入前导码重传前改变空域发送滤波器；
在随机接入前导码重传前改变空域发送滤波器时，所述终端设备的低层向高层发送挂起指示，其中，所述挂起指示用于指示挂起功率爬升计数器。
20、根据附记19所述的方法，其中，所述预定条件包括：所述随机接入资源选择和/或所述选择之前的随机接入资源选择时选择的SSB和/或CSI-RS发生改变。
21、根据附记19或20所述的方法，其中，所述预定条件包括：
所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的SSB或CSI-RS的资源类型发生改变，和/或，
所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的CSI-RS的CSI-RS资源标识改变，和/或，
所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的CSI-RS对应同一个波束的SSB的SSB索引改变。
22、根据附记19或20或21所述的方法，其中，所述预定条件包括：
所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的CSI-RS的CSI-RS资源标识改变，或，
所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的CSI-RS对应同一个波束的SSB的SSB索引改变，或，
所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的资源类型由CSI-RS更改为SSB，或，
所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的资源类型由SSB更改为CSI-RS，或，
所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的资源类型由CSI-RS更改为SSB，且选择的CSI-RS对应同一个波束的SSB的SSB索引改变，或，
所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的资源类型由SSB更改为CSI-RS，且选择的CSI-RS对应同一个波束的SSB的SSB索引改变。
23、根据附记19至22任一项所述的方法，其中，所述方法还包括：
在所述终端设备的高层未收到低层发送的所述挂起指示或选择的SSB未改变时，将所述功率爬升计数器加1，和/或，
在终端设备的高层收到终端设备的低层发送的所述挂起指示或选择的SSB改变时，所述功率爬升计数器维持不变。
24、根据附记19至23任一项所述的方法，其中，在随机接入过程未完成，且随 机接入响应接收未成功或竞争解决未成功的情况下，所述终端设备进行随机接入资源选择的步骤。
25、根据附记19至24任一项所述的方法，其中，所述方法还包括：
在完成随机接入资源选择时，所述终端设备的高层向低层提供选择的资源类型和/或选择的CSI-RS的CSI-RS资源标识和/或选择的SSB的SSB索引和/或选择的CSI-RS对应同一个波束的SSB的SSB索引。
26、根据附记19至25任一项所述的方法，其中，所述方法还包括：
所述终端设备根据所述目标接收功率确定随机接入前导码的发送功率。
27、根据附记26所述的方法，其中，所述方法还包括：
所述终端设备根据所述目标接收功率确定随机接入前导码的发送功率。
28、一种功率控制方法，其中，所述方法包括：
终端设备进行随机接入资源选择；
在所述终端设备的高层未收到来自低层用于指示挂起功率爬升计数器的挂起指示时，所述终端设备根据选择的SSB对应的随机接入机会或选择的CSI-RS对应的随机接入机会的变化情况，控制所述功率爬升计数器。
29、根据附记28所述的方法，其中，根据选择的SSB对应的随机接入机会或选择的CSI-RS对应的随机接入机会的变化情况，控制所述功率爬升计数器的步骤包括：
在选择的SSB对应的随机接入机会没有发生改变的情况下，将所述功率爬升计数器加1，或，
在选择的CSI-RS对应的随机接入机会没有发生改变的情况下，将所述功率爬升计数器加1。
30、根据附记28或29所述的方法，其中，在至少一个随机接入机会相同时，确定所述随机接入机会没有发生改变。
31、根据附记28至30任一项所述的方法，其中，所述方法还包括：
所述终端设备根据所述目标接收功率确定随机接入前导码的发送功率。
32、根据附记31所述的方法，其中，所述方法还包括：
所述终端设备根据所述目标接收功率确定随机接入前导码的发送功率。
33、一种功率控制方法，其中，所述方法包括：
终端设备进行随机接入资源选择；
在所述随机接入资源选择选择了第一CSI-RS，且所述随机接入资源选择之前的随机接入资源选择选择了第二CSI-RS的情况下，根据选择的CSI-RS的变化情况，或根据选择的CSI-RS的变化情况和根据选择的CSI-RS对应同一个波束的SSB的存在情况和/或变化情况，控制功率爬升计数器。
34、根据附记33所述的方法，其中，根据选择的CSI-RS的变化情况，或根据选择的CSI-RS的变化情况和根据选择的CSI-RS对应同一个波束的SSB的存在情况和/或变化情况，控制功率爬升计数器包括：
判断所述第一CSI-RS和第二CSI-RS是否相同，在相同时，将功率爬升计数器加1；
在所述第一CSI-RS和第二CSI-RS不相同时，判断所述第一CSI-RS是否存在对应同一个波束的第一SSB，所述第二CSI-RS是否存在对应同一个波束的第二SSB；在判断结果为不存在时，维持功率爬升计数器不变；
在判断结果为存在时，判断所述第一SSB和所述第二SSB是否相同，在判断结果为相同时，将功率爬升计数器加1，在判断结果为不相同时，维持功率爬升计数器不变。
35、一种功率控制方法，其中，所述方法包括：
进行随机接入资源选择；
根据选择的随机接入机会的变化情况，控制所述功率爬升计数器；或在终端设备的高层未收到来自低层用于指示挂起功率爬升计数器的挂起指示时，根据选择的随机接入机会的变化情况，控制所述功率爬升计数器。
36、根据附记35所述的方法，其中，所述选择的随机接入机会包括：选择的SSB对应的随机接入机会或选择的CSI-RS对应的随机接入机会。
37、根据附记35或36所述的方法，其中，在选择的随机接入机会没有发生改变的情况下，将所述功率爬升计数器加1。
38、根据附记35至37任一项所述的方法，其中，在根据选择的随机接入机会的变化情况，控制所述功率爬升计数器时，在选择的随机接入机会改变时，所述高层维持功率爬升计数器不变，或低层向高层发送用于指示挂起功率爬升计数器的挂起指示。
39、根据附记38所述的方法，其中，所述方法还包括：在随机接入前导码重传 前，随机接入机会改变时，低层确定空域发送滤波器改变，或低层改变空域发送滤波器。
40、根据附记35至39任一项所述的方法，其中，在至少一个随机接入机会相同时，确定所述随机接入机会没有发生改变。

Claims (20)

  1. 一种功率控制装置，其中，所述装置包括：
    选择单元，其用于进行随机接入资源选择；
    控制单元，其用于根据选择的随机接入机会的变化情况，控制所述功率爬升计数器；或在终端设备的高层未收到来自低层用于指示挂起功率爬升计数器的挂起指示时，根据选择的随机接入机会的变化情况，控制所述功率爬升计数器。
  2. 根据权利要求1所述的装置，其中，所述选择的随机接入机会包括：选择的SSB对应的随机接入机会或选择的CSI-RS对应的随机接入机会。
  3. 根据权利要求1所述的装置，其中，所述控制单元在选择的随机接入机会没有发生改变的情况下，将所述功率爬升计数器加1。
  4. 根据权利要求1所述的装置，其中，所述控制单元在至少一个随机接入机会相同时，确定所述随机接入机会没有发生改变。
  5. 一种功率控制方法，其中，所述方法包括：
    终端设备进行随机接入资源选择；
    在所述随机接入资源选择选择了CSI-RS，或在所述随机接入资源选择和/或所述选择之前的随机接入资源选择选择了CSI-RS且满足预定条件时，所述终端设备的高层确定收到了来自低层的挂起指示，或所述终端设备的低层向高层发送挂起指示，或所述终端设备在随机接入前导码重传前改变空域发送滤波器，其中，所述挂起指示用于指示挂起功率爬升计数器。
  6. 根据权利要求5所述的方法，其中，所述预定条件包括：
    所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的SSB或CSI-RS的资源类型发生改变，和/或，
    所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的CSI-RS的CSI-RS资源标识改变，和/或，
    所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的CSI-RS对应同一个波束的SSB的SSB索引改变。
  7. 根据权利要求5所述的方法，其中，所述预定条件包括：
    所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的CSI-RS 的CSI-RS资源标识改变，或，
    所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的CSI-RS对应同一个波束的SSB的SSB索引改变，或，
    所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的资源类型由CSI-RS更改为SSB，或，
    所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的资源类型由SSB更改为CSI-RS，或，
    所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的资源类型由CSI-RS更改为SSB，且选择的CSI-RS对应同一个波束的SSB的SSB索引改变，或，
    所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的资源类型由SSB更改为CSI-RS，且选择的CSI-RS对应同一个波束的SSB的SSB索引改变。
  8. 根据权利要求5所述的方法，其中，所述方法还包括：
    在完成随机接入资源选择时，所述终端设备的高层向低层提供选择的资源类型和/或选择的CSI-RS的CSI-RS资源标识和/或选择的SSB的SSB索引和/或选择的CSI-RS对应同一个波束的SSB的SSB索引。
  9. 根据权利要求5所述的方法，其中，所述方法还包括：
    在终端设备的高层未收到终端设备的低层发送的所述挂起指示或选择的SSB未改变时，将所述功率爬升计数器加1，和/或，
    在终端设备的高层收到终端设备的低层发送的所述挂起指示或选择的SSB改变时，所述功率爬升计数器维持不变。
  10. 根据权利要求5所述的方法，其中，在随机接入过程未完成，且随机接入响应接收未成功或竞争解决未成功的情况下，所述终端设备进行随机接入资源选择的步骤。
  11. 根据权利要求5所述的方法，其中，所述方法还包括：
    所述终端设备根据所述功率爬升计数器的值计算目标接收功率。
  12. 根据权利要求11所述的方法，其中，所述方法还包括：
    所述终端设备根据所述目标接收功率确定随机接入前导码的发送功率。
  13. 一种功率控制装置，其配置于终端设备，其中，所述装置包括：
    选择单元，其用于进行随机接入资源选择；
    处理单元，其用于在所述选择单元进行随机接入资源选择选择了CSI-RS，或在所述选择单元进行所述随机接入资源选择和/或所述选择之前的随机接入资源选择选择了CSI-RS且满足预定条件时，在随机接入前导码重传前改变空域发送滤波器，或挂起功率爬升计数器。
  14. 根据权利要求13所述的装置，其中，在所述选择单元进行随机接入资源选择选择了CSI-RS，或在所述选择单元进行所述随机接入资源选择和/或所述选择之前的随机接入资源选择选择了CSI-RS且满足所述预定条件时，所述终端设备的高层确定收到了来自低层的挂起指示，或所述终端设备的低层向高层发送挂起指示，所述处理单元根据所述挂起指示挂起所述功率爬升计数器。
  15. 根据权利要求13所述的装置，其中，所述预定条件包括：
    所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的SSB或CSI-RS的资源类型发生改变，和/或，
    所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的CSI-RS的CSI-RS资源标识改变，和/或，
    所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的CSI-RS对应同一个波束的SSB的SSB索引改变。
  16. 根据权利要求13所述的装置，其中，所述预定条件包括：
    所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的CSI-RS的CSI-RS资源标识改变，或，
    所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的CSI-RS对应同一个波束的SSB的SSB索引改变，或，
    所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的资源类型由CSI-RS更改为SSB，或，
    所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的资源类型由SSB更改为CSI-RS，或，
    所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的资源类型由CSI-RS更改为SSB，且选择的CSI-RS对应同一个波束的SSB的SSB索引改变，或，
    所述随机接入资源选择和/或所述选择之前的随机接入资源选择中选择的资源类型由SSB更改为CSI-RS，且选择的CSI-RS对应同一个波束的SSB的SSB索引改变。
  17. 根据权利要求13所述的装置，其中，所述处理单元在完成随机接入资源选择时，所述终端设备的高层向低层提供选择的资源类型和/或选择的CSI-RS的CSI-RS资源标识和/或选择的SSB的SSB索引和/或选择的CSI-RS对应同一个波束的SSB的SSB索引。
  18. 根据权利要求13所述的装置，其中，在终端设备的高层未收到终端设备的低层发送的所述挂起指示或选择的SSB未改变时，所述处理单元将所述功率爬升计数器加1，和/或，
    在终端设备的高层收到终端设备的低层发送的所述挂起指示或选择的SSB改变时，所述处理单元维持所述功率爬升计数器不变。
  19. 根据权利要求13所述的装置，其中，在随机接入过程未完成，且随机接入响应接收未成功或竞争解决未成功的情况下，所选择单元进行随机接入资源选择的步骤。
  20. 根据权利要求13所述的装置，其中，所述处理单元还用于根据所述功率爬升计数器的值计算目标接收功率，根据所述目标接收功率确定随机接入前导码的发送功率。
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