CN117560755A - Power headroom processing method and device and communication equipment - Google Patents

Power headroom processing method and device and communication equipment Download PDF

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Publication number
CN117560755A
CN117560755A CN202210918582.6A CN202210918582A CN117560755A CN 117560755 A CN117560755 A CN 117560755A CN 202210918582 A CN202210918582 A CN 202210918582A CN 117560755 A CN117560755 A CN 117560755A
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China
Prior art keywords
power
antenna panel
terminal
actual
antenna
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CN202210918582.6A
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Chinese (zh)
Inventor
骆亚娟
高秋彬
李辉
苏昕
黄秋萍
宋磊
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Datang Mobile Communications Equipment Co Ltd
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Datang Mobile Communications Equipment Co Ltd
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Priority to CN202210918582.6A priority Critical patent/CN117560755A/en
Publication of CN117560755A publication Critical patent/CN117560755A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/30TPC using constraints in the total amount of available transmission power
    • H04W52/36TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/365Power headroom reporting
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • H04W72/1263Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows

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

Abstract

The application provides a power headroom processing method, a device and communication equipment, which are used for solving the problem of how to carry out uplink scheduling based on an antenna panel of a terminal. The method of the embodiment of the application comprises the following steps: the terminal determines the power allowance of the antenna panel, wherein the power allowance of the antenna panel is related to the maximum transmitting power of the antenna panel; and the terminal reports the power margin of the antenna panel. In the embodiment of the application, the network side equipment (such as the base station) can carry out uplink scheduling on the terminal based on each antenna panel of the terminal, so that the scheduling flexibility is improved, and the system performance is improved.

Description

Power headroom processing method and device and communication equipment
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for processing a power headroom, and a communication device.
Background
In the related art, a base station performs uplink scheduling on a terminal according to a power headroom report (Power Headroom Report, PHR) of the terminal in combination with a maximum transmission power of the terminal, i.e., the existing uplink scheduling is based on the PHR reported by each terminal. However, when a terminal is capable of performing multiple antenna panels (panels), the existing scheduling method cannot enable the base station to perform uplink scheduling based on the antenna panels according to PHR of the terminal.
Disclosure of Invention
The invention aims to provide a power headroom processing method, a power headroom processing device and communication equipment, so as to solve the problem of how to carry out uplink scheduling based on an antenna panel of a terminal.
In order to achieve the above object, the present application provides a method for processing a power headroom, including:
the terminal determines the power allowance of the antenna panel, wherein the power allowance of the antenna panel is related to the maximum transmitting power of the antenna panel;
and the terminal reports the power margin of the antenna panel.
Optionally, the determining, by the terminal, the power headroom of the antenna panel according to the maximum transmission power of the antenna panel includes:
the terminal determines the actual power allowance of the antenna panel according to the maximum transmitting power of the antenna panel and a first power control parameter, wherein the first power control parameter comprises a target power value of uplink transmission, a path loss compensation factor, a path loss value measured by the terminal and the number of resource blocks occupied by the uplink transmission on the antenna panel;
and/or the terminal determines the virtual power margin of the antenna panel according to the maximum transmitting power of the antenna panel and a second power control parameter, wherein the second power control parameter comprises the target power value of uplink transmission, a path loss compensation factor and a path loss value measured by the terminal.
Optionally, the reporting, by the terminal, the power headroom of the antenna panel includes:
the terminal reports the actual power margin of the first antenna panel;
or the terminal reports the actual power allowance of the first antenna panel and the virtual power allowance of the second antenna panel;
or the terminal reports the virtual power allowance of the second antenna panel;
the first antenna panel is an antenna panel with uplink transmission, and the second antenna panel is an antenna panel without uplink transmission.
Optionally, the terminal reports an actual power headroom of the first antenna panel, including:
and the terminal reports the actual power allowance of the first antenna panel in a first time slot, wherein the first time slot is the time slot in which the uplink transmission on the first antenna panel is positioned.
The terminal determines the actual power margin of the antenna panel according to the maximum transmitting power of the antenna panel and the first power control parameter, and comprises the following steps:
the terminal determines the actual transmitting power when the antenna panel transmits uplink transmission according to the first power control parameter;
and the terminal determines the actual power allowance of the antenna panel according to the difference value between the maximum transmitting power of the antenna panel and the actual transmitting power. Optionally, at least some of the first power control parameters or at least some of the second power control parameters are determined according to at least one of:
The power control parameters associated with a first TCI state, wherein the first TCI state comprises a downlink TCI state or a joint TCI state or an uplink TCI state of the terminal; or,
power control parameters agreed by the protocol; or,
the power control parameters indicated by the base station; or,
default power control parameters.
Optionally, the default power control parameter includes at least one of:
and M groups of parameters in the power control parameter set comprise at least one group of power control parameters, wherein each group of parameters in the M groups of parameters respectively correspond to one transmitting and receiving node TRP, each group of power control parameters comprises a target power value of uplink transmission, a path loss compensation factor and a path loss value measured by a terminal, and M is a positive integer greater than or equal to 1.
Optionally, the reporting, by the terminal, the power headroom of the antenna panel includes:
under the condition that a triggering event is met, the terminal reports the power margin of the antenna panel;
wherein the trigger event comprises one of the following:
the path loss change value corresponding to at least one antenna panel in the antenna panels of the terminal is larger than or equal to a first preset threshold value; or (b)
The path loss change values corresponding to all antenna panels of the terminal are larger than or equal to a second preset threshold value; or (b)
And the average value of the path loss variation values corresponding to all the antenna panels of the terminal is larger than or equal to a third preset threshold value.
The embodiment of the application also provides a processing method of the power headroom, which comprises the following steps:
the network side equipment acquires the power margin of an antenna panel of the terminal;
and the network side equipment adjusts the transmitting power of the terminal according to the power allowance of the antenna panel of the terminal.
Optionally, the power headroom of the antenna panel includes one of:
the actual power headroom of the first antenna panel;
the method comprises the steps of obtaining a difference value between first total power and actual power of a first antenna panel, wherein the first total power is the maximum value of total power of all antenna panels of a terminal;
the actual power headroom of the first antenna panel and the virtual power headroom of the second antenna panel;
virtual power headroom of the second antenna panel;
the first antenna panel is an antenna panel with uplink transmission, and the second antenna panel is an antenna panel without uplink transmission.
The embodiment of the application also provides a processing device of the power headroom, which comprises a memory, a transceiver and a processor;
a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:
Determining a power headroom of the antenna panel, the power headroom of the antenna panel being related to a maximum transmit power of the antenna panel;
and reporting the power margin of the antenna panel through a transceiver.
Optionally, the processor further implements the following steps when executing the program:
determining the actual power margin of an antenna panel according to the maximum transmitting power of the antenna panel and a first power control parameter, wherein the first power control parameter comprises a target power value of uplink transmission, a path loss compensation factor, a path loss value obtained by terminal measurement and the number of resource blocks occupied by uplink transmission on the antenna panel;
and/or determining virtual power margin of the antenna panel according to the maximum transmitting power of the antenna panel and a second power control parameter, wherein the second power control parameter comprises the target power value of uplink transmission, a path loss compensation factor and a path loss value obtained by terminal measurement.
Optionally, the processor further implements the following steps when executing the program:
reporting the actual power margin of the first antenna panel;
or reporting the difference between the first total power and the actual power of the first antenna panel;
or reporting the actual power margin of the first antenna panel and the virtual power margin of the second antenna panel;
Or the terminal reports the virtual power allowance of the second antenna panel;
the first antenna panel is an antenna panel with uplink transmission, the second antenna panel is an antenna panel without uplink transmission, and the first total power is the maximum value of the total power of all antenna panels of the terminal.
Optionally, the processor further implements the following steps when executing the program:
reporting the actual power margin of the first antenna panel in a first time slot, wherein the first time slot is the time slot in which the uplink transmission is located;
or, the uplink transmission through the first antenna panel carries the actual power headroom of the first antenna panel.
Optionally, the processor further implements the following steps when executing the program:
determining the actual transmitting power when the antenna panel transmits uplink transmission according to the first power control parameter;
and the terminal determines the actual power allowance of the antenna panel according to the difference value between the maximum transmitting power of the antenna panel and the actual transmitting power.
Optionally, at least some of the first power control parameters or at least some of the second power control parameters are determined according to at least one of:
The power control parameters associated with a first TCI state, wherein the first TCI state comprises a downlink TCI state or a joint TCI state or an uplink TCI state of the terminal; or,
power control parameters agreed by the protocol; or,
the power control parameters indicated by the base station; or,
default power control parameters.
Optionally, the default power control parameter includes at least one of:
and M groups of parameters in the power control parameter set comprise at least one group of power control parameters, wherein each group of parameters in the M groups of parameters respectively correspond to one transmitting and receiving node TRP, each group of power control parameters comprises a target power value of uplink transmission, a path loss compensation factor and a path loss value measured by a terminal, and M is a positive integer greater than or equal to 1.
Optionally, the processor further implements the following steps when executing the program:
reporting the power margin of the antenna panel under the condition that a triggering event is met;
wherein the trigger event comprises one of the following:
the path loss change value corresponding to at least one antenna panel in the antenna panels of the terminal is larger than or equal to a first preset threshold value; or (b)
The path loss change values corresponding to all antenna panels of the terminal are larger than or equal to a second preset threshold value; or (b)
And the average value of the path loss variation values corresponding to all the antenna panels of the terminal is larger than or equal to a third preset threshold value.
The embodiment of the application also provides a processing device of the power headroom, which comprises a memory, a transceiver and a processor;
a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:
acquiring power headroom of an antenna panel of a terminal through a transceiver;
and adjusting the transmitting power of the terminal according to the power allowance of the antenna panel of the terminal.
Optionally, the power headroom of the antenna panel includes one of:
the actual power headroom of the first antenna panel;
the method comprises the steps of obtaining a difference value between first total power and actual power of a first antenna panel, wherein the first total power is the maximum value of total power of all antenna panels of a terminal;
the actual power headroom of the first antenna panel and the virtual power headroom of the second antenna panel;
virtual power headroom of the second antenna panel;
the first antenna panel is an antenna panel with uplink transmission, and the second antenna panel is an antenna panel without uplink transmission.
The embodiment of the application also provides a processing device of the power headroom, which comprises:
a first determining unit configured to determine a power headroom of the antenna panel, the power headroom of the antenna panel being related to a maximum transmit power of the antenna panel;
and the first processing unit is used for reporting the power margin of the antenna panel.
The embodiment of the application also provides a processing device of the power headroom, which comprises:
a first acquisition unit configured to acquire a power headroom of an antenna panel of a terminal;
and the first adjusting unit is used for adjusting the transmitting power of the terminal according to the power allowance of the antenna panel of the terminal.
The embodiment of the application also provides a processor-readable storage medium, which is characterized in that the processor-readable storage medium stores a computer program for causing the processor to execute the steps of the power headroom processing method as described above.
The technical scheme of the application has at least the following beneficial effects:
in the above scheme of the embodiment of the present application, the terminal determines the power headroom of the antenna panel, where the power headroom of the antenna panel is related to the maximum transmit power of the antenna panel, and reports the power headroom of the antenna panel, so that network side equipment (such as a base station) can perform uplink scheduling on the terminal based on each antenna panel of the terminal, which increases scheduling flexibility and improves system performance.
Drawings
FIG. 1 is a block diagram of a network system to which embodiments of the present application are applicable;
FIG. 2 is a flow chart of a power headroom processing method according to an embodiment of the present disclosure;
FIG. 3 is a second flow chart of a power headroom processing method according to an embodiment of the present disclosure;
fig. 4 shows one of the block diagrams of the processing apparatus of the power headroom of the embodiment of the present application;
fig. 5 shows a second block diagram of a power headroom processing device according to an embodiment of the present application;
fig. 6 shows one of block diagrams of a processing apparatus for power headroom according to an embodiment of the present application;
fig. 7 shows a second block diagram of a power headroom processing apparatus according to an embodiment of the present application.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present application more apparent, the following detailed description will be given with reference to the accompanying drawings and the specific embodiments.
Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal device 11 and a network device 12. The terminal device 11 may also be referred to as a terminal or User Equipment (UE). Note that, the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may be a base station or a core network, and it should be noted that, in the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.
As shown in fig. 2, an embodiment of the present application provides a method for processing a power headroom, including:
step 201: and determining the power margin of the antenna panel, wherein the power margin of the antenna panel is related to the maximum transmitting power of the antenna panel.
In this embodiment of the present application, the terminal is a multi-antenna panel terminal. Each antenna panel may correspond to a maximum transmit power, where the maximum transmit power may be configured by the network device for the terminal based on a capability reported by the terminal, for example, after the terminal performs the capability report, the network device configures the maximum transmit power for each antenna panel through RRC.
The power margin of the antenna panel includes at least one of an actual power margin and a virtual power margin of the antenna panel.
In this embodiment of the present application, the power headroom of the antenna panel may be determined by combining the maximum transmit power of the antenna panel with related power control parameters (such as a path loss compensation factor, a path loss value measured by a terminal, etc.).
Step 202: and the terminal reports the power margin of the antenna panel.
In the embodiment of the application, the terminal determines the power margin of the antenna panel, and the power margin of the antenna panel is related to the maximum transmitting power of the antenna panel and reports the power margin of the antenna panel, so that network side equipment (such as a base station) can perform uplink scheduling on the terminal based on each antenna panel of the terminal, the scheduling flexibility is improved, and the system performance is improved.
Optionally, the determining the power headroom of the antenna panel includes:
method 1: the terminal determines the actual power allowance of the antenna panel according to the maximum transmitting power of the antenna panel and a first power control parameter, wherein the first power control parameter comprises a target power value of uplink transmission, a path loss compensation factor, a path loss value measured by the terminal and the number of resource blocks occupied by the uplink transmission on the antenna panel;
and/or, method 2: and the terminal determines virtual power allowance of the antenna panel according to the maximum transmitting power of the antenna panel and a second power control parameter, wherein the second power control parameter comprises the target power value of uplink transmission, a path loss compensation factor and a path loss value measured by the terminal.
In this embodiment, the number of resource blocks occupied by uplink transmission on the antenna panel in the first power control parameter may be indicated by DCI.
Optionally, for the method 1, the determining, by the terminal, the actual power headroom of the antenna panel according to the maximum transmission power of the antenna panel and the first power control parameter includes:
the terminal determines the actual transmitting power when the antenna panel transmits uplink transmission according to the first power control parameter;
The terminal determines the actual power allowance of the antenna panel according to the difference value between the maximum transmitting power of the antenna panel and the actual transmitting power; or determining the actual power allowance of the antenna panel according to the first total power and the actual transmitting power, wherein the first total power is the sum of the maximum transmitting power of all the antenna panels of the terminal.
The uplink transmission herein may refer to PUSCH transmission. For example, the terminal includes antenna panels panel1 and panel2, and the actual power margin PHR 1=p of panel1 cmax1 Actual power headroom PHR1 = P for PC1, panel2 cmax2 -PC2. Wherein P is cmax1 Is the maximum transmit power of panel1, P cmax2 Is the maximum transmit power of panel 2.
As an alternative implementation, the actual transmit power of the antenna panel (illustrated by PC1 as an example) may be determined by the following equation (1).
Wherein,and representing the PUSCH target power value, and giving the PUSCH target power value by parameters configured by high-layer signaling. The base station may configure multiple sets of parameter sets for the terminal, j being an index of the parameter sets. />The number of Physical Resource Blocks (PRBs) occupied by the terminal to transmit PUSCH at the ith PUSCH transmission occasion is represented. Alpha 1,b,f,c (j) Indicating the path loss compensation factor, j is the index of the parameter set. PL (PL) 1b,f,c (q d ) Represents the path loss value measured by the terminal, q d Is an index of a reference signal used to measure the path loss. Delta 1TF,b,f,c (i) Indicating the power offset determined by the MCS level. f (f) 1b,f,c (i, l) represents a closed loop power control adjustment value, f 1b,f,c (i, l) may be indicated by DCI, l being an index of the closed loop power control state. Alternatively, delta 1TF,b,f,c (i) It may be indicated by an RRC parameter,
for the above method 2, the virtual power margin of the antenna panel may be determined by the following equation (2).
Wherein,is the maximum allowed transmit power (i.e., the maximum transmit power of the antenna panel) on carrier f, which is configured by higher layer signaling, determined by the terminal power class, the meaning of the remaining parameters is the same as that of equation (1) above.
Optionally, the reporting, by the terminal, the power headroom of the antenna panel includes:
scheme 1: the terminal reports the actual power margin of the first antenna panel;
alternatively, scheme 2: the terminal reports the actual power margin of the first antenna panel and the virtual power margin of the second antenna panel;
alternatively, scheme 3: the terminal reports the virtual power allowance of the second antenna panel;
the first antenna panel is an antenna panel with uplink transmission, and the second antenna panel is an antenna panel without uplink transmission.
In this embodiment of the present application, if the network side device schedules uplink transmission on the antenna panel, it is determined that uplink transmission exists on the antenna panel, that is, the network side device schedules uplink transmission on the first antenna panel, and the network side device does not schedule uplink transmission on the second antenna panel.
Optionally, the first antenna panel includes at least one antenna panel, and the second antenna panel includes at least one antenna panel.
Assuming that the terminal includes two antenna panels, for a single antenna panel (S-panel) transmission, the terminal may report only one actual power headroom (this is one implementation of scheme 1 above) corresponding to the PHR of the scheduled S-panel. Or reporting an actual power headroom and a virtual power headroom (i.e. adopting the mode of the scheme 2), wherein the actual power headroom represents the PHR of the actually scheduled S-panel, and the virtual power headroom represents the PHR of the unscheduled panel, so that the power control of the base station in the subsequent uplink transmission is facilitated;
for the transmission of the multi-antenna panel (M-panel), the terminal may report two actual power headroom, where the two actual power headroom respectively correspond to the power headroom when the two antenna panels actually transmit (this mode is one implementation of the foregoing scheme 1); after the base station obtains the actual power headroom reported by the terminal, the base station can determine the corresponding power headroom of each antenna panel based on the actual power headroom, and in the subsequent scheduling, independent scheduling from each antenna panel to a TRP (panel-to-TRP) link is performed, for example, for a link with large power headroom, subsequent uplink transmission is performed based on that more RBs can be allocated;
Or, the terminal compares the two actual power headroom to report one of the two actual power headroom (this is an implementation of the above scheme 1), for example, report the actual power headroom with a smaller value, and the base station may adjust the uplink transmission power of the terminal based on the link with poor channel quality in the later scheduling.
Alternatively, the terminal considers the total power P of all antenna panels of the terminal cmax Reported phr=p cmax - (PC 1+ PC 2) (i.e. using scheme 1 above), where PC1 is the actual transmit power of the first antenna panel and PC2 is the actual transmit power of the second antenna panel. And the base station receives the report of the terminal, and if the PHR value is a positive value, the base station adjusts the transmitting power of the subsequent uplink transmission by using the PHR value reported by the terminal. For example, when the PHR is positive, the base station knows that the terminal transmission power at this time has a margin, and the base station can schedule the terminal to increase the transmission power, and specifically, the power of which branch is increased is determined by the terminal implementation. If PHR is negative, the terminal self-adjusts the transmitting power by DPS back-off mechanism after reporting. Or the base station designates to adjust the transmitting power of a certain branch;
or, the terminal reports an actual power headroom corresponding to the power headroom when the first antenna panel is actually transmitting, and a virtual power headroom corresponding to the power headroom when the second antenna panel is not scheduled to be actually transmitting (corresponding to scheme 2 above). Or, the terminal reports two virtual power headroom corresponding to the power headroom when the two antenna panels are not scheduled for actual transmission, respectively (corresponding to scheme 3 above).
Optionally, the terminal reports an actual power headroom of the first antenna panel, including:
and the terminal reports the actual power allowance of the first antenna panel in a first time slot, wherein the first time slot is the time slot in which the uplink transmission on the first antenna panel is positioned.
As an alternative implementation, the terminal comprises two antenna panels, for single downlink control information (Single Downlink Control Information, S-DCI) scheduling:
assuming single-panel (S-panel) transmission, if only one actual power headroom is reported, the actual power headroom is the difference between the transmission power of the uplink transmission of the current scheduled panel and the maximum transmission (or sending) power of the antenna panel, and the actual power headroom and the current scheduled PUSCH are transmitted in the same time slot;
assuming that the two PUSCHs scheduled by the base station are transmitted in the same time slot for multi-panel (M-panel) transmission, the two corresponding PHR are respectively included in the respective PUSCHs, or may be transmitted in one of the PUSCHs, for example, on the first transmission occasion scheduled by the base station. Alternatively, multiple downlink control information (Multi Downlink Control Information, M-DCI):
the scheduling of uplink transmission for each link is performed independently, and the two scheduled PUSCHs may not be transmitted in one slot, and a medium access control unit (MAC CE) carrying PHR report is transmitted simultaneously with the corresponding PUSCH.
Optionally, at least some of the first power control parameters or at least some of the second power control parameters are determined according to at least one of:
a1: the power control parameters associated with a first TCI State, wherein the first TCI State comprises a downlink TCI State (DL-TCI State) or a Joint TCI State (Joint-TCI State) or an uplink TCI State (UL-TCI State) of the terminal; or,
a2: power control parameters agreed by the protocol; or,
a3: the power control parameters indicated by the base station; or,
a4: default power control parameters.
For example, for the term A1, when calculating the power headroom (actual power headroom) under the unified TCI (unified TCI) architecture, PL-RS (path loss value measured by the terminal) associated with the first TCI state, P0 (target power value for uplink transmission), and alpha (path loss compensation factor) may be used to determine the actual transmit power when the antenna panel sends uplink transmission (for a specific calculation process, refer to the formula (1)).
For example, for the calculation of the actual power headroom under the unified TCI architecture, the PL-RS, P0, alpha of a certain fixed ID agreed by the protocol is used to determine the actual transmit power when the antenna panel sends the uplink transmission (for a specific calculation process, refer to the above formula (1)), for example, PUSCH-Path loss Reference RS (PL-RS) with the smallest ID and P0, alpha with the lowest ID in the P0AlphaSet are used. Or the smallest and second smallest ID PUSCH-Path loss Reference RS and the lowest and second lowest ID P0 in the P0alpha set, and alpha corresponds to the default power control parameters of two panels.
For example, for the calculation of the actual power headroom under the unified TCI architecture, the actual transmission power when the line panel sends the uplink transmission is calculated by the default power control parameter indicated by the base station and dedicated to the actual power headroom. For a specific calculation process, reference is made to the above formula (1)
By the scheme, the actual power margin under the unified TCI architecture can be determined. Optionally, in an embodiment of the present application, the default power control parameter includes at least one of:
and M groups of parameters in the power control parameter set comprise at least one group of power control parameters, wherein each group of parameters in the M groups of parameters respectively correspond to one transmitting and receiving node TRP, each group of power control parameters comprises a target power value of uplink transmission, a path loss compensation factor and a path loss value measured by a terminal, and M is a positive integer greater than or equal to 1.
For example, the default power control parameters are an nth group of parameters in a power parameter set, the power parameter set includes at least one group of power control parameters, each group of power control parameters includes a target power value of uplink transmission, a path loss compensation factor and a path loss value measured by a terminal, the nth group of parameters corresponds to one TRP, and N is a positive integer; for example, N is 1, but N may be other values, and is not particularly limited herein;
For another example, the first M groups of parameters in the power parameter set, where each group of parameters in the first M groups of parameters corresponds to one transmitting and receiving node TRP. Wherein M is a positive integer, each group of power control parameters comprises a target power value of uplink transmission, a path loss compensation factor and a path loss value obtained by terminal measurement, and M is a positive integer;
it should be noted that, the above power parameter set may be a power control parameter set P0AlphaSet indicated by uplink power control (ul-powerControl) configuration information, and a first item (e.g., a first group of power control parameters) in the set may be used as a default power control parameter of PUSCH/PUCCH/SRS, and if the power parameter set is M-TRP, the default power control parameter is extended to two items, for example, a first item in P0AlphaSet in ul-powerControl, and a second item is used as two default power control parameters.
The configuration information of the P0AlphaSet is specifically as follows:
in an alternative embodiment of the present application, the first power control parameter may be PL-RS, P0, alpha associated with DLorPoint-TCIState. Specifically, the power margin is calculated by using PL-RS contained in DL or point-TCI State and P0 contained in Uplink-powerControl-r17 contained in DL or point-TCI State, and specific configuration information of DL or point-TCI State is as follows:
Optionally, the reporting, by the terminal, the power headroom of the antenna panel includes:
under the condition that a triggering event is met, the terminal reports the power margin of the antenna panel;
wherein the trigger event comprises one of the following:
a first item: the path loss change value corresponding to at least one antenna panel in the antenna panels of the terminal is larger than or equal to a first preset threshold value;
the second item: the path loss change values corresponding to all antenna panels of the terminal are larger than or equal to a second preset threshold value;
third item: and the average value of the path loss variation values corresponding to all the antenna panels of the terminal is larger than or equal to a third preset threshold value.
For the first item, for example, the path loss value of the first antenna panel of the terminal at the first moment is A1, the path loss value at the second moment is A2, and the value of the second moment A2-A1 is greater than or equal to the first preset threshold, and then the power margin of the antenna panel is reported at the second moment.
For the second item, for example, the terminal includes a first antenna panel and a second antenna panel, where the path loss value of the first antenna panel at a first time is A1, the path loss value of the second antenna panel at a second time is A2, the path loss value of the second antenna panel at the first time is B1, the path loss value at the second time is B2, the value of A2-A1 at the second time is greater than or equal to the second preset threshold, and the value of B2-B1 is greater than or equal to the second preset threshold, and the power margin of the antenna panel is reported at the second time;
For the third item, referring to the second item, assuming that the (A2-a1+b2-B1)/2 value is greater than a third preset threshold, the power headroom of the antenna panel is reported at the time of geothermal heat.
It should be noted that, in the embodiment of the present application, the first preset threshold, the second preset threshold, or the third preset threshold may be configured by the network side device through higher layer signaling, or may be predefined.
In the first embodiment of the present application, it is assumed that the terminal has two panels: panel1 and panel2. The maximum transmitting power of panel1 is P cmax1 The maximum transmitting power of panel2 is P cmax2 . The method of the embodiment of the application can comprise the following steps:
step 1: the base station informs the terminal to report the actual power headroom (actual PHR) through the RRC signaling, and the configured RRC signaling is as follows, and informs the terminal to report the PHR periodically, wherein the reporting period is 100ms.
Step 2: the base station activates DCI indicated by a beam issued at an nth time through MAC-CE through RRC configuration, and notifies the terminal to transmit PUSCH1 (uplink transmission on an antenna panel) and PUSCH2 (uplink transmission on an antenna panel) transmitted by a subsequent panel1 respectively by using beams indicated by TCI-stateid=1 and TCI-stateid=2. That is, the power control parameters associated with the first TCI state (TCI-state=1 and TCI-state=2) are adopted as the power control parameters for calculating the actual transmission power, and specifically, the open-loop power control parameters (power control parameters for calculating the actual transmission power) are P0AlphaSet1 and P0AlphaSet2 associated with TCI-state=1 and TCI-state=2. The path loss reference signals are PUSCH-PathlossReferenceRS-1 and PUSCH-PathlossReferenceRS-2 respectively. And respectively corresponding to the panel1 and the panel2 to send reference signals for path loss measurement and estimation in uplink transmission.
That is, in this step, the power control parameters associated with the first TCI states (TCI-stateid=1 and TCI-stateid=2) are adopted as the power control parameters for calculating the actual transmission power.
Step 3: the base station transmits DCI format 0_1 in the nth time slot, the scheduling terminal transmits the PUSCH1 and the PUSCH2 through the panel1 and the panel2 at the time of n+k, and the base station simultaneously indicates that the TPC command word in the DCI format 0_1 is 1 and tells the terminal that the closed loop power of the PUSCH is unchanged relative to the last time.
Step 4: the terminal determines actual transmission powers PC1 and PC2 of PUSCH1 and PUSCH2 of panel1 and panel2, respectively, according to equation (1).
Optionally, the open loop power control parameter in the above formula (1)α 1,,f,c (j) Q d And determining open-loop power control parameter sets P0alpha set1 and P0alpha set2 associated with DLorJointTCI state/UL TCI state indicated by a base station, wherein the open-loop power control parameter sets correspond to open-loop power control parameter sets of uplink transmission of each panel respectively. />Corresponding to the number of RBs 1 when scheduling uplink 1 transmissions and the number of RBs 2 when scheduling uplink 2 transmissions.
I.e. the step is an implementation step of determining the actual transmit power by means of a first power control parameter (the above-mentioned open loop power control parameter).
Step 5: the terminal calculates the PHR value of each panel according to the PUSCH actual transmission power PC1 of panel1 and the PUSCH actual transmission power PC2 of panel2 calculated in step 4, specifically, PHR 1=p cmax1 -PC1,PHR2=P cmax2 -PC2, wherein P cmax1 Maximum transmit power of panel1, P cmax2 Is the maximum transmit power of panel 2.
In this step, the difference between the maximum transmission power of the antenna panel and the actual transmission power is determined as the actual transmission power.
Step 6: and (3) the terminal transmits the uplink PUSCH1 and the uplink PUSCH2 by using the panel1 and the panel2 in the n+k time slot, and periodically reports the PHR1 and the PHR2 obtained by the calculation in the step (5).
The actual power margin is obtained in the step, and the actual power margin is reported, wherein the specific report content is in the following forms or the combination of the forms:
(1) PHR1 and PHR2 are reported, and the base station is informed of how much power allowance is left in each panel, so that the base station can conveniently control the power of the uplink PUSCH transmission scheduled later.
(2) Reporting a certain value, such as a small PHR value, of PHR1 and PHR2, or a PHR value corresponding to a branch with a larger PL, and informing the base station that the subsequent power control is adjusted based on the branch with poor link quality.
(3) Considering that the total power Pcmax of all the panels of the terminal is limited, reporting phr=pcmax- (pc1+pc2) or phr=pcmax-PC 1 or phr=pcmax-PC 2 can also be considered in the above scheme reporting.
The base station receives PHR value reported by the terminal, PHR1 = 7dB, PHR2 = -3dB, the base station knows that for panel1, enough power allowance exists, and in the scheduling of the next moment, the base station allocates more RB resources for panel 1. For panel2 (PHR 2 = -3 dB), the base station knows that the current actual transmit power of the terminal has exceeded its maximum transmit power limit. The base station knows that the uplink quality of the panel2 is poor, and in the next scheduling, the base station reduces the RB resource allocation and the corresponding data transmission of the panel 2.
For PHR report of PUSCH actually transmitted, MAC-CE carrying PHR report must be transmitted in the same time slot with corresponding PUSCH, for case of two panel simultaneous transmission, if terminal does not have enough resources to illustrate PHR2 MAC-CE in PUSCH2 uplink transmission of panel2 in time slot n+k, at this time, terminal reports a PHR value on PUSCH1 resource transmitted by panel1 in n+k time slot, namely (PHR 1+PHR2)/2. And the base station receives the report of the terminal and performs scheduling at the next moment according to the report value. For a case reporting a PHR, a terminal may also be predefined by the system to report a value with a small PHR, for example, when PHR 1=7db and PHR 2= -3dB are reported by the terminal, where PHR 2= -3dB is reported by the terminal. In the subsequent scheduling, the base station performs resource scheduling of PUSCHs of the Panel1 and the Panel2 according to the power margin of-3 dB.
In a second specific embodiment of the present application, it is assumed that the terminal has two panels: panel1 and panel2. The maximum transmitting power of panel1 is P cmax1 The maximum transmitting power of panel2 is P cmax2 . The method of the embodiment of the application can comprise the following steps:
step 1: the base station informs the terminal to report the actual power headroom (actual PHR) through RRC signaling, and the configured RRC signaling is used for informing the terminal to report the trigger of the meeting event. the condition reported by the trigger is that the path loss of panel1 and the path loss of panel2 exceed 3dB.
Step 2: the base station activates DCI indicated by a beam sent at the nth time through MAC-CE through RRC configuration, and notifies the terminal to send PUSCH1 sent by the subsequent panel1 and PUSCH2 sent by the panel2 respectively by using beams indicated by TCI-stateid=1 and TCI-stateid=2. That is, the power control parameters associated with the first TCI state (TCI-state=1 and TCI-state=2) are adopted as the power control parameters for calculating the actual transmission power, and specifically, the open-loop power control parameters (power control parameters for calculating the actual transmission power) are P0AlphaSet1 and P0AlphaSet2 associated with TCI-state=1 and TCI-state=2. The path loss reference signals are the reference signals for path loss measurement and estimation when the uplink transmission is sent by the panel1 and the panel2 respectively, wherein the path loss reference signals are the PUSCH-PathlossReferenceRS-1 and the PUSCH-PathlossReferenceRS-2 respectively.
I.e. the step is an implementation step of determining the actual transmit power by means of a first power control parameter (the above-mentioned open loop power control parameter).
Step 3: the base station transmits DCI format 0_1 in the nth time slot, the scheduling terminal transmits the PUSCH1 and the PUSCH2 through the panel1 and the panel2 at the time of n+k, and the base station simultaneously indicates that the TPC command word in the DCI format 0_1 is 1 and tells the terminal that the closed loop power of the PUSCH is unchanged relative to the last time.
Step 4: the terminal measures and filters the two path loss reference signals PUSCH-PathlossReferenceRS-1 and PUSCH-PathlossReferenceRS-2L 1-RSRP determined in the step 2, and obtains the path loss PL1 = 5dB corresponding to the panel1 uplink PUSCH and the path loss PL2 = 7dB corresponding to the panel2 uplink PUSCH by using the formula (3).
PL b,f,c (q d )=referenceSignalPower–higher layer filtered RSRP;(3)
Where reference signalpower represents reference signal received power and higher layer filtered RSRP represents higher layer filtered RSRP (i.e., filtered L1-RSRP).
The step 4 describes an implementation manner of the path loss value obtained by measuring the terminal.
Step 5: the terminal determines the actual transmit power PC1 of PUSCH1 of panel1 and the actual transmit power PC2 of PUSCH2 of panel2 according to formula (1), respectively.
Step 6: the terminal calculates PHR 1=p according to the actual transmission power PC1 of the PUSCH of the panel1 and the actual transmission power PC2 of the PUSCH of the panel2 calculated in the step 5 cmax1 -PC1,PHR2=P cmax2 -PC2, wherein P cmax1 Maximum transmit power of panel1, P cmax2 Is the maximum transmit power of panel 2.
In this step, the difference between the maximum transmission power of the antenna panel and the actual transmission power is determined as the actual transmission power.
Step 7: let the last measured path loss value of the terminal be pl1_prev=1db, pl2_prev=2db. And comparing the path loss difference twice by the terminal to obtain PL1_difference=4dB >3dB and PL2_difference=5dB >3dB.
In the step 7, when the trigger event is that the path loss change values corresponding to two antenna panels in the antenna panels of the terminal are greater than or equal to a first preset threshold value, PHR reporting is triggered.
Step 8: and (3) the terminal transmits uplink PUSCH1 and PUSCH2 by using the panel1 and the panel2 in the n+k time slot, and reports PHR to PHR1 and PHR2 obtained by calculation in the step (6), wherein the PHR 1=7dB and PHR2= -3dB are assumed. For panel2 (PHR 2 = -3 dB), the base station knows that the current actual transmit power of the terminal has exceeded its maximum transmit power limit. The base station knows that the uplink quality of the panel2 is poor, and in the next scheduling, the base station reduces the RB resource allocation and the corresponding data transmission of the panel 2.
In this step, the terminal reports PHR in the time slot (n+k time slot) where uplink transmissions (PUSCH 1 and PUSCH 2) are located.
In a third specific embodiment of the present application, the base station informs the terminal through RRC configuration that PUSCH transmission after the terminal is multi-TRP transmission. In the nth time slot, the base station issues DCI format 1_0, and notifies the terminal that the beam used for PUSCH transmission after receiving the DCI instruction is the reception/transmission beam of the reference signal contained in the DLorJoint-tcisttate or the UL-TCI state contained in the DCI format 1_0. The base station does not include power control parameters (PL-RS, P0, alpha) in the indicated DLorPoint-TCIState or UL-TCI state. The predefined rule is that if the power control parameter of the terminal is not associated with dlorjoin-TCIState or UL-TCI state, the terminal uses PUSCH-pathassreference rs of lowest ID and next lowest ID, and P0 of lowest ID and next lowest ID in P0AlphaSet, alpha as the power control parameter to perform power adjustment on uplink PUSCH transmissions of TRP1 and TRP 2. The terminal determines the PUSCH-PathlossReferenceRS with the lowest ID as the CSI-RS1 and the PUSCH-PathlossReferenceRS with the next lowest ID as the CSI-RS2 according to a predefined rule. P0 in P0alpha set of the lowest ID, alpha is { P0_1, alpha_1}, P0 in P0alpha set of the next lowest ID, alpha is { P0_2, alpha_2}. The terminal uses the power control parameters { CSI-RS1, p0_1, alpha_1} to perform power adjustment on PUSCH transmission to TRP1, and uses the power control parameters { CSI-RS2, p0_2, alpha_2} to perform power adjustment on PUSCH transmission to TRP2, specifically, the power adjustment may be performed according to the following formula (4). Equation 4:
Wherein P is CMAX,, Indicating the maximum transmit power of the antenna panel.
In this embodiment, in the case that the base station does not include the power control parameter in the indicated dlorjoin-TCIState or UL-TCI state, it is clear how to determine the power control parameter, i.e. determine the power control parameter according to the above-mentioned predefined rule.
As shown in fig. 3, the embodiment of the present application further provides a power headroom processing method, which includes:
step 301: the network side equipment acquires the power margin of an antenna panel of the terminal;
in this embodiment of the present application, the terminal is a multi-antenna panel terminal. Each antenna panel may correspond to a maximum transmitting power, where the maximum transmitting power may be configured for the terminal by the network side device based on the capability reported by the terminal, for example, after the terminal performs the capability report, the network side device configures the maximum transmitting power for each antenna panel through RRC.
Step 302: and the network side equipment adjusts the transmitting power of the terminal according to the power allowance of the antenna panel of the terminal.
In the embodiment of the application, the terminal determines the power margin of the antenna panel according to the maximum transmitting power of the antenna panel, and reports the power margin of the antenna panel, so that network side equipment (such as a base station) can perform uplink scheduling on the terminal based on each antenna panel of the terminal, the scheduling flexibility is improved, and the system performance is improved.
Optionally, the power headroom of the antenna panel includes one of:
the actual power headroom of the first antenna panel;
the actual power headroom of the first antenna panel and the virtual power headroom of the second antenna panel;
virtual power headroom of the second antenna panel;
the first antenna panel is an antenna panel with uplink transmission, and the second antenna panel is an antenna panel without uplink transmission.
It should be noted that, the method for processing the power headroom performed by the network side device is a method corresponding to the method for processing the power headroom performed by the terminal, and will not be described herein.
As shown in fig. 4, the embodiment of the present application provides a power headroom processing apparatus, which includes a memory 420, a transceiver 400, and a processor 410;
a memory 420 for storing a computer program; a transceiver 400 for transceiving data under the control of the processor 410; a processor 410 for reading the computer program in the memory 420 and performing the following operations:
determining a power headroom of the antenna panel, the power headroom of the antenna panel being related to a maximum transmit power of the antenna panel;
and reporting the power margin of the antenna panel through a transceiver.
Wherein in fig. 4, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 410 and various circuits of memory represented by memory 420, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. Transceiver 400 may be a number of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over transmission media, including transmission media including wireless channels, wired channels, optical cables, and the like. The user interface 430 may also be an interface capable of interfacing with an inscribed desired device for a different user device, including but not limited to a keypad, display, speaker, microphone, joystick, etc.
The processor 410 is responsible for managing the bus architecture and general processing, and the memory 420 may store data used by the processor 410 in performing operations.
Alternatively, the processor 410 may be a CPU (Central processing Unit), ASIC (Application Specific Integrated Circuit ), FPGA (Field-Programmable Gate Array, field programmable Gate array) or CPLD (Complex Programmable Logic Device ), and the processor may also employ a multicore architecture.
The processor is configured to execute any of the methods provided in the embodiments of the present application by invoking a computer program stored in a memory in accordance with the obtained executable instructions. The processor and the memory may also be physically separate.
Optionally, the processor further implements the following steps when executing the program:
determining the actual power margin of an antenna panel according to the maximum transmitting power of the antenna panel and a first power control parameter, wherein the first power control parameter comprises a target power value of uplink transmission, a path loss compensation factor, a path loss value obtained by terminal measurement and the number of resource blocks occupied by uplink transmission on the antenna panel;
and/or determining virtual power margin of the antenna panel according to the maximum transmitting power of the antenna panel and a second power control parameter, wherein the second power control parameter comprises the target power value of uplink transmission, a path loss compensation factor and a path loss value obtained by terminal measurement.
Optionally, the processor further implements the following steps when executing the program:
reporting the actual power margin of the first antenna panel;
or reporting the actual power margin of the first antenna panel and the virtual power margin of the second antenna panel;
Or the terminal reports the virtual power allowance of the second antenna panel;
the first antenna panel is an antenna panel with uplink transmission, and the second antenna panel is an antenna panel without uplink transmission.
Optionally, the processor further implements the following steps when executing the program:
and reporting the actual power margin of the first antenna panel in a first time slot, wherein the first time slot is the time slot in which the uplink transmission on the first antenna panel is positioned.
Optionally, the processor further implements the following steps when executing the program:
determining the actual transmitting power when the antenna panel transmits uplink transmission according to the first power control parameter;
the terminal determines the actual power allowance of the antenna panel according to the difference value between the maximum transmitting power of the antenna panel and the actual transmitting power; or determining the actual power allowance of the antenna panel according to the first total power and the actual transmitting power, wherein the first total power is the sum of the maximum transmitting power of all the antenna panels of the terminal.
Optionally, at least some of the first power control parameters or at least some of the second power control parameters are determined according to at least one of:
The power control parameters associated with a first TCI state, wherein the first TCI state comprises a downlink TCI state or a joint TCI state or an uplink TCI state of the terminal; or,
power control parameters agreed by the protocol; or,
the power control parameters indicated by the base station; or,
default power control parameters.
Optionally, the default power control parameter includes at least one of:
and M groups of parameters in the power control parameter set comprise at least one group of power control parameters, wherein each group of parameters in the M groups of parameters respectively correspond to one transmitting and receiving node TRP, each group of power control parameters comprises a target power value of uplink transmission, a path loss compensation factor and a path loss value measured by a terminal, and M is a positive integer greater than or equal to 1.
Optionally, the processor further implements the following steps when executing the program:
reporting the power margin of the antenna panel under the condition that a triggering event is met;
wherein the trigger event comprises one of the following:
the path loss change value corresponding to at least one antenna panel in the antenna panels of the terminal is larger than or equal to a first preset threshold value; or (b)
The path loss change values corresponding to all antenna panels of the terminal are larger than or equal to a second preset threshold value; or (b)
And the average value of the path loss variation values corresponding to all the antenna panels of the terminal is larger than or equal to a third preset threshold value.
It should be noted that, the above device provided in this embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment for processing the power headroom applied to the terminal, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the method embodiment in this embodiment are omitted.
As shown in fig. 5, the embodiment of the present application further provides a processing apparatus for power headroom, which is applied to a network side device, and includes a memory 520, a transceiver 500, and a processor 510;
a memory 520 for storing a computer program; a transceiver 500 for transceiving data under the control of the processor; a processor 510 for reading the computer program in the memory and performing the following operations:
acquiring, by the transceiver 500, a power headroom of an antenna panel of the terminal;
and adjusting the transmitting power of the terminal according to the power allowance of the antenna panel of the terminal.
Optionally, the power headroom of the antenna panel includes one of:
the actual power headroom of the first antenna panel;
The actual power headroom of the first antenna panel and the virtual power headroom of the second antenna panel;
virtual power headroom of the second antenna panel;
the first antenna panel is an antenna panel with uplink transmission, and the second antenna panel is an antenna panel without uplink transmission.
Where in FIG. 5, a bus architecture may comprise any number of interconnected buses and bridges, with various circuits of the one or more processors, as represented by processor 510, and the memory, as represented by memory 520, being linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. Transceiver 500 may be a number of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium, including wireless channels, wired channels, optical cables, etc. The processor 510 is responsible for managing the bus architecture and general processing, and the memory 520 may store data used by the processor 510 in performing operations.
The processor 510 may be a Central Processing Unit (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a Field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device, CPLD), or it may employ a multi-core architecture.
It should be noted that, the above device provided in this embodiment of the present application can implement all the method steps implemented in the foregoing method embodiment for processing the power headroom applied to the network side device, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the method embodiment in this embodiment are omitted.
As shown in fig. 6, an embodiment of the present application provides a processing apparatus for power headroom, which is applied to a terminal, including:
a first determining unit 601, configured to determine a power headroom of the antenna panel, where the power headroom of the antenna panel is related to a maximum transmission power of the antenna panel;
the first processing unit 602 is configured to report a power headroom of the antenna panel.
Optionally, the first determining unit is configured to determine, according to a maximum transmit power of the antenna panel and a first power control parameter, an actual power headroom of the antenna panel, where the first power control parameter includes a target power value for uplink transmission, a path loss compensation factor, a path loss value obtained by measurement of a terminal, and a number of resource blocks occupied by uplink transmission on the antenna panel;
And/or determining virtual power margin of the antenna panel according to the maximum transmitting power of the antenna panel and a second power control parameter, wherein the second power control parameter comprises the target power value of uplink transmission, a path loss compensation factor and a path loss value obtained by terminal measurement.
Optionally, the first processing unit is configured to report an actual power headroom of the first antenna panel;
or reporting the difference between the first total power and the actual power of the first antenna panel;
or the terminal reports the virtual power allowance of the second antenna panel;
the first antenna panel is an antenna panel with uplink transmission, and the second antenna panel is an antenna panel without uplink transmission.
Optionally, the first processing unit is configured to report an actual power headroom of the first antenna panel in a first time slot, where the first time slot is a time slot in which uplink transmission on the first antenna panel is located.
Optionally, the apparatus of the embodiment of the present application further includes:
the second determining unit is used for determining the actual transmitting power when the antenna panel transmits uplink transmission according to the first power control parameter;
a third determining unit, configured to determine an actual power margin of the antenna panel according to a difference between the maximum transmission power of the antenna panel and the actual transmission power; or determining the actual power allowance of the antenna panel according to the first total power and the actual transmitting power, wherein the first total power is the sum of the maximum transmitting power of all the antenna panels of the terminal.
Optionally, in the apparatus of the embodiments of the present application, the first power control parameter or the second power control parameter is determined according to at least one of:
the power control parameters associated with a first TCI state, wherein the first TCI state comprises a downlink TCI state or a joint TCI state or an uplink TCI state of the terminal; or,
power control parameters agreed by the protocol; or,
the power control parameters indicated by the base station; or,
default power control parameters.
Optionally, the default power control parameter includes at least one of:
and M groups of parameters in the power control parameter set comprise at least one group of power control parameters, wherein each group of parameters in the M groups of parameters respectively correspond to one transmitting and receiving node TRP, each group of power control parameters comprises a target power value of uplink transmission, a path loss compensation factor and a path loss value measured by a terminal, and M is a positive integer greater than or equal to 1.
Optionally, the first processing unit is configured to report a power headroom of the antenna panel when a trigger event is met;
wherein the trigger event comprises one of the following:
the path loss change value corresponding to at least one antenna panel in the antenna panels of the terminal is larger than or equal to a first preset threshold value; or (b)
The path loss change values corresponding to all antenna panels of the terminal are larger than or equal to a second preset threshold value; or (b)
And the average value of the path loss variation values corresponding to all the antenna panels of the terminal is larger than or equal to a third preset threshold value.
It should be noted that, the above device provided in this embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment for processing the power headroom applied to the terminal, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the method embodiment in this embodiment are omitted.
As shown in fig. 7, the embodiment of the present application further provides a processing apparatus for power headroom, which is applied to a network side device, and includes:
a first acquisition unit 701 for acquiring a power margin of an antenna panel of the terminal;
a first adjusting unit 702, configured to adjust the transmit power of the terminal according to the power headroom of the antenna panel of the terminal.
Optionally, the power headroom of the antenna panel includes one of:
the actual power headroom of the first antenna panel;
the actual power headroom of the first antenna panel and the virtual power headroom of the second antenna panel;
Virtual power headroom of the second antenna panel;
the first antenna panel is an antenna panel with uplink transmission, and the second antenna panel is an antenna panel without uplink transmission;
the actual power margin refers to the power margin when the network side device schedules uplink transmission on the antenna panel, and the virtual power margin refers to the power margin when the network side device schedules uplink transmission on the antenna panel.
It should be noted that, the above device provided in this embodiment of the present application can implement all the method steps implemented in the foregoing method embodiment for processing the power headroom applied to the network side device, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the method embodiment in this embodiment are omitted.
It should be noted that, in the embodiment of the present application, the division of the units is schematic, which is merely a logic function division, and other division manners may be implemented in actual practice. In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a processor-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution, in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
In some embodiments of the present application, there is also provided a processor-readable storage medium storing program instructions for causing the processor to perform the steps of:
Determining a power headroom of the antenna panel, the power headroom of the antenna panel being related to a maximum transmit power of the antenna panel;
and reporting the power margin of the antenna panel.
Alternatively, the program instructions are for causing the processor to perform the steps of:
acquiring the power margin of an antenna panel of a terminal;
and adjusting the transmitting power of the terminal according to the power allowance of the antenna panel of the terminal.
The terminal device according to the embodiments of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing device connected to a wireless modem, etc. The names of the terminal devices may also be different in different systems, for example in a 5G system, the terminal devices may be referred to as User Equipment (UE). The wireless terminal device may communicate with one or more Core Networks (CNs) via a radio access Network (Radio Access Network, RAN), which may be mobile terminal devices such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, e.g., portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile devices that exchange voice and/or data with the radio access Network. Such as personal communication services (Personal Communication Service, PCS) phones, cordless phones, session initiation protocol (Session Initiated Protocol, SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital assistants (Personal Digital Assistant, PDAs), and the like. The wireless terminal device may also be referred to as a system, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile), remote station (remote station), access point (access point), remote terminal device (remote terminal), access terminal device (access terminal), user terminal device (user terminal), user agent (user agent), user equipment (user device), and the embodiments of the present application are not limited.
The network device (i.e., the network-side device) according to the embodiments of the present application may be a base station, where the base station may include a plurality of cells for providing services for a terminal. A base station may also be called an access point or may be a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or other names, depending on the particular application. The network device may be operable to exchange received air frames with internet protocol (Internet Protocol, IP) packets as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management for the air interface. For example, the network device according to the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in a global system for mobile communications (Global System for Mobile communications, GSM) or code division multiple access (Code Division Multiple Access, CDMA), a network device (NodeB) in a wideband code division multiple access (Wide-band Code Division Multiple Access, WCDMA), an evolved network device (evolutional Node B, eNB or e-NodeB) in a long term evolution (Long Term Evolution, LTE) system, a 5G base station (gNB) in a 5G network architecture (next generation system), a home evolved base station (Home evolved Node B, heNB), a relay node (relay node), a home base station (femto), a pico base station (pico), and the like. In some network structures, the network device may include a Centralized Unit (CU) node and a Distributed Unit (DU) node, which may also be geographically separated.
Multiple-input Multiple-output (Multi Input Multi Output, MIMO) transmissions may each be made between a network device and a terminal device using one or more antennas, and the MIMO transmissions may be Single User MIMO (SU-MIMO) or Multiple User MIMO (MU-MIMO). The MIMO transmission may be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or may be diversity transmission, precoding transmission, beamforming transmission, or the like, depending on the form and number of the root antenna combinations.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These processor-executable instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.

Claims (23)

1. A method for processing a power headroom, comprising:
the terminal determines the power margin of an antenna panel, wherein the power margin of the antenna panel is related to the maximum transmitting power of the antenna panel;
and the terminal reports the power margin of the antenna panel.
2. The method of claim 1, wherein the terminal determining the power headroom of the antenna panel comprises:
the terminal determines the actual power allowance of the antenna panel according to the maximum transmitting power of the antenna panel and a first power control parameter, wherein the first power control parameter comprises a target power value of uplink transmission, a path loss compensation factor, a path loss value measured by the terminal and the number of resource blocks occupied by the uplink transmission on the antenna panel; and/or
And the terminal determines virtual power allowance of the antenna panel according to the maximum transmitting power of the antenna panel and a second power control parameter, wherein the second power control parameter comprises the target power value of uplink transmission, a path loss compensation factor and a path loss value measured by the terminal.
3. The method of claim 2, wherein the reporting, by the terminal, the power headroom of the antenna panel comprises:
The terminal reports the actual power margin of the first antenna panel;
or the terminal reports the actual power allowance of the first antenna panel and the virtual power allowance of the second antenna panel;
or the terminal reports the virtual power allowance of the second antenna panel;
the first antenna panel is an antenna panel with uplink transmission, and the second antenna panel is an antenna panel without uplink transmission.
4. A method according to claim 3, wherein the terminal reporting the actual power headroom of the first antenna panel comprises:
and the terminal reports the actual power allowance of the first antenna panel in a first time slot, wherein the first time slot is the time slot in which the uplink transmission on the first antenna panel is positioned.
5. The method of claim 2, wherein the determining, by the terminal, the actual power headroom of the antenna panel based on the maximum transmit power of the antenna panel and the first power control parameter comprises:
the terminal determines the actual transmitting power when the antenna panel transmits uplink transmission according to the first power control parameter;
the terminal determines the actual power allowance of the antenna panel according to the difference value between the maximum transmitting power of the antenna panel and the actual transmitting power; or determining the actual power allowance of the antenna panel according to the first total power and the actual transmitting power, wherein the first total power is the sum of the maximum transmitting power of all the antenna panels of the terminal.
6. The method of claim 2, wherein at least a portion of the first power control parameters or at least a portion of the second power control parameters are determined based on at least one of:
the power control parameters associated with a first TCI state, wherein the first TCI state comprises a downlink TCI state or a joint TCI state or an uplink TCI state of the terminal; or,
power control parameters agreed by the protocol; or,
the power control parameters indicated by the base station; or,
default power control parameters.
7. The method of claim 6, wherein the default power control parameters comprise at least one of:
and M groups of parameters in the power control parameter set, wherein the power control parameter set comprises at least one group of power control parameters, each group of parameters in the M groups of parameters respectively corresponds to one transmitting and receiving node TRP, each group of power control parameters comprises a target power value of uplink transmission, a path loss compensation factor and a path loss value measured by a terminal, and M is a positive integer greater than or equal to 1.
8. The method of claim 1, wherein the reporting, by the terminal, the power headroom of the antenna panel comprises:
under the condition that a triggering event is met, the terminal reports the power margin of the antenna panel;
Wherein the trigger event comprises one of the following:
the path loss change value corresponding to at least one antenna panel in the antenna panels of the terminal is larger than or equal to a first preset threshold value; or (b)
The path loss change values corresponding to all antenna panels of the terminal are larger than or equal to a second preset threshold value; or (b)
And the average value of the path loss variation values corresponding to all the antenna panels of the terminal is larger than or equal to a third preset threshold value.
9. A method for processing a power headroom, comprising:
the network side equipment acquires the power margin of an antenna panel of the terminal;
and the network side equipment adjusts the transmitting power of the terminal according to the power allowance of the antenna panel of the terminal.
10. The method of claim 9, wherein the power headroom of the antenna panel comprises one of:
the actual power headroom of the first antenna panel;
the actual power headroom of the first antenna panel and the virtual power headroom of the second antenna panel;
virtual power headroom of the second antenna panel;
the first antenna panel is an antenna panel with uplink transmission, and the second antenna panel is an antenna panel without uplink transmission.
11. A processing device for power headroom, which is characterized by comprising a memory, a transceiver and a processor;
a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:
determining a power headroom of an antenna panel, the power headroom of the antenna panel being related to a maximum transmit power of the antenna panel;
and reporting the power margin of the antenna panel through a transceiver.
12. The apparatus of claim 11, wherein the processor when executing the program further performs the steps of:
determining the actual power margin of an antenna panel according to the maximum transmitting power of the antenna panel and a first power control parameter, wherein the first power control parameter comprises a target power value of uplink transmission, a path loss compensation factor, a path loss value obtained by terminal measurement and the number of resource blocks occupied by uplink transmission on the antenna panel;
and/or determining virtual power margin of the antenna panel according to the maximum transmitting power of the antenna panel and a second power control parameter, wherein the second power control parameter comprises the target power value of uplink transmission, a path loss compensation factor and a path loss value obtained by terminal measurement.
13. The apparatus of claim 12, wherein the processor when executing the program further performs the steps of:
reporting the actual power margin of the first antenna panel;
or reporting the actual power margin of the first antenna panel and the virtual power margin of the second antenna panel;
or reporting the virtual power allowance of the second antenna panel;
the first antenna panel is an antenna panel with uplink transmission, and the second antenna panel is an antenna panel without uplink transmission.
14. The apparatus of claim 13, wherein the processor when executing the program further performs the steps of:
and reporting the actual power margin of the first antenna panel in a first time slot, wherein the first time slot is the time slot in which the uplink transmission on the first antenna panel is positioned.
15. The apparatus of claim 12, wherein the processor when executing the program further performs the steps of:
determining the actual transmitting power when the antenna panel transmits uplink transmission according to the first power control parameter;
the terminal determines the actual power allowance of the antenna panel according to the difference value between the maximum transmitting power of the antenna panel and the actual transmitting power; or determining the actual power allowance of the antenna panel according to the first total power and the actual transmitting power, wherein the first total power is the sum of the maximum transmitting power of all the antenna panels of the terminal.
16. The apparatus of claim 12, wherein at least a portion of the first power control parameters or at least a portion of the second power control parameters are determined based on at least one of:
the power control parameters associated with a first TCI state, wherein the first TCI state comprises a downlink TCI state or a joint TCI state or an uplink TCI state of the terminal; or,
power control parameters agreed by the protocol; or,
the power control parameters indicated by the base station; or,
default power control parameters.
17. The apparatus of claim 16, wherein the default power control parameters comprise at least one of:
and M groups of parameters in the power control parameter set comprise at least one group of power control parameters, wherein each group of parameters in the M groups of parameters respectively correspond to one transmitting and receiving node TRP, each group of power control parameters comprises a target power value of uplink transmission, a path loss compensation factor and a path loss value measured by a terminal, and M is a positive integer greater than or equal to 1.
18. The apparatus of claim 11, wherein the processor when executing the program further performs the steps of:
reporting the power margin of the antenna panel under the condition that a triggering event is met;
Wherein the trigger event comprises one of the following:
the path loss change value corresponding to at least one antenna panel in the antenna panels of the terminal is larger than or equal to a first preset threshold value; or (b)
The path loss change values corresponding to all antenna panels of the terminal are larger than or equal to a second preset threshold value; or (b)
And the average value of the path loss variation values corresponding to all the antenna panels of the terminal is larger than or equal to a third preset threshold value.
19. A processing device for power headroom, which is characterized by comprising a memory, a transceiver and a processor;
a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:
acquiring power headroom of an antenna panel of a terminal through a transceiver;
and adjusting the transmitting power of the terminal according to the power allowance of the antenna panel of the terminal.
20. The apparatus of claim 19, wherein the power headroom of the antenna panel comprises one of:
the actual power headroom of the first antenna panel;
the actual power headroom of the first antenna panel and the virtual power headroom of the second antenna panel;
Virtual power headroom of the second antenna panel;
the first antenna panel is an antenna panel with uplink transmission, and the second antenna panel is an antenna panel without uplink transmission.
21. A power headroom processing apparatus, comprising:
a first determining unit configured to determine a power headroom of an antenna panel, the power headroom of the antenna panel being related to a maximum transmit power of the antenna panel;
and the first processing unit is used for reporting the power margin of the antenna panel.
22. A power headroom processing apparatus, comprising:
a first acquisition unit configured to acquire a power headroom of an antenna panel of a terminal;
and the first adjusting unit is used for adjusting the transmitting power of the terminal according to the power allowance of the antenna panel of the terminal.
23. A processor-readable storage medium, characterized in that the processor-readable storage medium stores a computer program for causing the processor to perform the steps of the power headroom processing method of any of claims 1 to 8 or the steps of the power headroom processing method of any of claims 9 to 10.
CN202210918582.6A 2022-08-01 2022-08-01 Power headroom processing method and device and communication equipment Pending CN117560755A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210918582.6A CN117560755A (en) 2022-08-01 2022-08-01 Power headroom processing method and device and communication equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210918582.6A CN117560755A (en) 2022-08-01 2022-08-01 Power headroom processing method and device and communication equipment

Publications (1)

Publication Number Publication Date
CN117560755A true CN117560755A (en) 2024-02-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210918582.6A Pending CN117560755A (en) 2022-08-01 2022-08-01 Power headroom processing method and device and communication equipment

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Country Link
CN (1) CN117560755A (en)

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