CN109802733B - Method and apparatus for signal measurement - Google Patents

Method and apparatus for signal measurement Download PDF

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CN109802733B
CN109802733B CN201711147320.XA CN201711147320A CN109802733B CN 109802733 B CN109802733 B CN 109802733B CN 201711147320 A CN201711147320 A CN 201711147320A CN 109802733 B CN109802733 B CN 109802733B
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power
measurement signal
terminal device
srs
value
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CN109802733A (en
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王亚飞
张弛
马小骏
龚政委
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/30Monitoring; Testing of propagation channels
    • H04B17/309Measuring or estimating channel quality parameters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B17/00Monitoring; Testing
    • H04B17/30Monitoring; Testing of propagation channels
    • H04B17/382Monitoring; Testing of propagation channels for resource allocation, admission control or handover
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/54Allocation or scheduling criteria for wireless resources based on quality criteria

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The application provides a method and a device for signal measurement, wherein the method comprises the following steps: a first terminal device receives power configuration information sent by a first network device, wherein the power configuration information is used for configuring power parameters, the power parameters corresponding to a first power and a second power are independently configured, the first power is the power of a measurement signal determined by the first terminal device to be sent for uplink channel measurement, and the second power is the power of the measurement signal determined by the first terminal device to be sent for inter-terminal device interference measurement; the first terminal equipment determines second power of the measuring signal for sending interference measurement between the terminal equipment according to the power parameter; and the first terminal equipment uses the second power to transmit the measurement signal for measuring the interference between the terminal equipments. The embodiment of the application can realize accurate interference measurement between the terminals.

Description

Method and apparatus for signal measurement
Technical Field
The present application relates to the field of communications, and in particular, to a method and an apparatus for signal measurement.
Background
In the New Radio (NR) standardization work of the 5th Generation (5G), a flexible duplex mode is supported, i.e., timeslots on 1 frequency band or carrier can be dynamically used for uplink and downlink transmissions, such as dynamic time division duplex (dynamic TDD) and flexible duplex (flexible duplex).
When the uplink and downlink transmission directions of different cells are not consistent, cross-link interference (CLI) may be generated, and particularly, CLI affects users at the cell edge more greatly. In order to eliminate or avoid cross interference, the 3rd generation partnership project (3 GPP) standards organization discusses and studies possible technical solutions, including coordinated scheduling, power control, and the like, all of which are based on cross interference measurement, for example, interference measurement between terminal devices.
At present, the terminal device may implement the above-mentioned cross interference measurement by measuring the measurement signal transmitted by the uplink channel, however, in some special cases, the measurement signal transmitted by the uplink channel is difficult to meet the requirement of the cross interference measurement. Resulting in inaccurate cross-interference measurements.
Therefore, how to implement accurate cross interference measurement through measurement of the measurement signal becomes an urgent problem to be solved.
Disclosure of Invention
The application provides a method and equipment for measuring signals, which can realize accurate cross interference measurement through measuring measurement signals.
In a first aspect, a method for signal measurement is provided, the method including:
A first terminal device receives power configuration information sent by a first network device, wherein the power configuration information is used for configuring power parameters, the power parameters corresponding to a first power and a second power are independently configured, the first power is the power of a measurement signal determined by the first terminal device to be sent for uplink channel measurement, and the second power is the power of the measurement signal determined by the first terminal device to be sent for inter-terminal device interference measurement; the first terminal equipment determines second power of the measuring signal for sending interference measurement between the terminal equipment according to the power parameter; and the first terminal equipment uses the second power to transmit the measurement signal for measuring the interference between the terminal equipments.
Therefore, in the embodiment of the present application, the power parameters for uplink channel measurement and inter-terminal interference measurement are independently configured by the network device, so that the terminal device determines the power for sending the measurement signal for inter-terminal interference measurement according to the power parameter for inter-terminal interference measurement configured by the network device when performing inter-terminal interference measurement. The problem that the same power (namely the power of the measurement signal during uplink channel measurement) is used for sending the measurement signal in both channel measurement and inter-terminal interference measurement in the prior art is solved, and accurate inter-terminal interference measurement can be realized.
It should be understood that in the embodiment of the present application, the "independent configuration" of the power parameter corresponding to the first power and the second power may also be referred to as "separate configuration" of the power parameter corresponding to the first power and the second power; in other words, the power parameter corresponding to the first power and the power parameter corresponding to the second power are independent and have no correlation. For example, the power configuration information may correspond to two different fields in the same message, where the two fields configure the power parameter respectively, for example, a first field is used to configure a first value of the power parameter corresponding to the first power, and a second field is used to configure a second value of the power parameter corresponding to the second power, where the first value and the second value are independent and have no association relationship. Optionally, the power configuration information may also correspond to two different messages, and the two different messages respectively configure the power parameter, for example, a first message is used to configure a first value of the power parameter corresponding to the first power, and a second message is used to configure a second value of the power parameter corresponding to the second power, where the first value and the second value are independent and have no association relationship.
That is to say, the network device may configure two values, namely a first value and a second value, of the power parameter through the power configuration information, where the two values have no association relationship, for example, the two values are different or may also be the same, and the embodiment of the present application is not limited thereto. The first value may be used by the first terminal device to determine the first power, and the second value may be used by the first terminal device to determine the second power.
With reference to the first aspect, in an implementation manner of the first aspect, before the first terminal device determines, according to the power parameter, a second power for transmitting the measurement signal for inter-terminal device interference measurement, the method further includes:
the first terminal device receives scene indication information sent by the first network device, wherein the scene indication information is used for indicating that a measurement signal sent by the first terminal device is used for inter-terminal interference measurement;
wherein the determining, by the first terminal device, the second power of the measurement signal for inter-terminal device interference measurement according to the power parameter includes:
the first terminal device selects a second value of the power parameter from the values of the power parameter configured by the first network device according to the scene indication information, wherein the values of the power parameter configured by the first network device include a first value of the power parameter and a second value of the power parameter, the first value is used for the first terminal device to determine the first power, and the second value is used for the first terminal device to determine the second power;
And the first terminal equipment determines second power of the measurement signal for measuring the interference between the terminal equipment according to the second value of the power parameter.
Specifically, the first terminal device may select a value of a corresponding power parameter according to a scene indicated by corresponding scene indication information (may also be referred to as scene configuration information) to determine the power for transmitting the measurement signal.
For example, when the measurement signal is used for inter-terminal interference measurement, the first terminal device may receive second scenario indication information sent by the first network device, and the first terminal device determines, according to an indication of the second scenario indication information, that the measurement signal is used for inter-terminal interference measurement, and then the first terminal device may determine, according to a second value of the power parameter configured by the configuration information, a second power for sending the measurement signal, and send, with the second power, the measurement signal for inter-terminal measurement.
Or, when the measurement signal is used for uplink channel measurement, the first terminal device may receive first scenario indication information sent by the first network device, and the first terminal device determines, according to an indication of the first scenario indication information, that the measurement signal is used for uplink channel measurement, and then the first terminal device may determine, according to a first value of a power parameter configured by the configuration information, a first power for sending the measurement signal, and send, with the first power, the measurement signal used for uplink channel measurement.
With reference to the first aspect, in an implementation manner of the first aspect, the power parameter includes at least one of the following parameters:
a power offset of the measurement signal, a desired power of the measurement signal, and a path loss compensation factor of the measurement signal.
With reference to the first aspect, in one implementation form of the first aspect, the power parameter includes a power offset of the measurement signal,
the first terminal device determines a second power of the measurement signal for inter-terminal device interference measurement according to a second value of the power parameter, including determining the second power according to the following formula:
PSRS,c(i)=min{PCMAX,c(i),PSRS_OFFSET,c(m)+10log10(MSRS,c)+PO_PUSCH,c(j)+αc(j)·PLc+fc(i)}
wherein, PSRS,c(i) Indicating the second power, c indicating the cell in which the first terminal device is located or the carrier in which the terminal transmits the measurement signal, i indicating the time unit in which the measurement signal is transmitted, PCMAX,c(i) Indicating the maximum transmission power of the first terminal device for transmitting the measurement signal, where m is x, x is a preset value, x is used to indicate that the measurement signal is used for inter-terminal interference measurement, and P isSRS_OFFSET,c(m) represents a second value of the power offset; mSRS,c(i) Is the number of resource blocks, P, of the first terminal device configured by the first network deviceO_UE_PUSCH,c(j) Is the expected received power, alpha, of the measurement signal during the uplink channel measurement configured by the first network device c(j) Representing the path loss compensation factor, PLcRepresenting a value of downlink path loss, f, between the first network device and the first terminal devicec(i) Indicating the power adjustment value.
It is described above that when m ═ x, it means that the measurement signal is used for inter-terminal interference measurement. Alternatively, m may take other values, for example, when m is 0 or 1, it may indicate that the measurement signal is used for measurement of the uplink channel, PSRS_OFFSET,c(m) represents a first value of the power offset.
That is to say, when the configuration information configuration m sent by the first network device is 0 or 1, the power of the measurement signal determined by the first terminal device according to the above formula is the first power, that is, the measurement signal is used for measuring the uplink channel.
Specifically, when the measurement signal for uplink channel measurement is periodically transmitted, corresponding to m being 0, the power of the corresponding measurement signal may be determined according to the following formula:
PSRS,c(i)=min{PCMAX,c(i),PSRS_OFFSET,c(0)+10log10(MSRS,c)+PO_PUSCH,c(j)+αc(j)·PLc+fc(i)}
specifically, when the measurement signal for uplink channel measurement is transmitted non-periodically, corresponding to m being 1, the power of the corresponding measurement signal may be determined according to the following formula:
PSRS,c(i)=min{PCMAX,c(i),PSRS_OFFSET,c(1)+10log10(MSRS,c)+PO_PUSCH,c(j)+αc(j)·PLc+fc(i)}
when the configuration information configuration m sent by the first network device is x (for example, x is 2 or another preset value), the power of the measurement signal determined by the first terminal device according to the above formula is the second power, that is, the measurement signal is used for measuring the uplink channel, and the power of the corresponding measurement signal may be modified to be determined according to the following formula:
PSRS,c(i)=min{PCMAX,c(i),PSRS_OFFSET,c(x)+10log10(MSRS,c)+PO_PUSCH,c(j)+αc(j)·PLc+fc(i)}
It should be understood that m is 0 or 1, which may indicate that the measurement signal is used for measurement of an uplink channel, and optionally m may also be equal to other values different from x, and the embodiment of the present application is not limited thereto.
With reference to the first aspect, in one implementation form of the first aspect, the power parameter comprises a desired power of the measurement signal,
the first terminal device determines a second power of the measurement signal for inter-terminal device interference measurement according to a second value of the power parameter, including determining the second power according to the following formula:
PSRS,c(i)=min{PCMAX,c(i),10log10(MSRS,c)+PO_SRS,c(n)+αSRS,c·PLc+fc(i)}
wherein, PSRS,c(i) Indicating the second power, c indicating the cell in which the first terminal device is located or the carrier in which the terminal transmits the measurement signal, i indicating the time unit in which the measurement signal is transmitted, PCMAX,c(i) Represents the maximum transmission power, M, of the first terminal device for transmitting the measurement signalSRS,c(i) The number of resource blocks of the first terminal device configured by the first network device, where n is y, y is a preset value, y is used to indicate that the measurement signal is used for inter-terminal interference measurement, and P isO_SRS,c(n) represents a second value of the desired power; alpha is alphac(j) Representing the path loss compensation factor, PLcRepresenting a value of downlink path loss, f, between the first network device and the first terminal device c(i) Indicating the power adjustment value.
It is described above that when n ═ y, it means that the measurement signal is used for inter-terminal interference measurement. Alternatively, n may take other values, for example, when n is 0 or 1, it may indicate that the measurement signal is used for measurement of the uplink channel, and PO_SRS,c(n) represents a second value of the desired power.
That is to say, when the configuration information configuration n sent by the first network device is 0 or 1, the power of the measurement signal determined by the first terminal device according to the above formula is the first power, that is, the measurement signal is used for measuring the uplink channel.
Specifically, when a measurement signal for uplink channel measurement is periodically transmitted, corresponding to n being 0, the power of the corresponding measurement signal may be determined according to the following formula:
PSRS,c(i)=min{PCMAX,c(i),10log10(MSRS,c)+PO_SRS,c(0)+αSRS,c·PLc+fc(i)}
specifically, when the measurement signal for uplink channel measurement is transmitted non-periodically, corresponding to n being 1, the power of the corresponding measurement signal may be determined according to the following formula:
PSRS,c(i)=min{PCMAX,c(i),10log10(MSRS,c)+PO_SRS,c(1)+αSRS,c·PLc+fc(i)}
when the configuration information configuration n ═ x (for example, x ═ 2 or another preset value) transmitted by the first network device, the power of the measurement signal determined by the first terminal device according to the above formula is the second power, that is, the measurement signal is used for measurement of the uplink channel, and the power of the corresponding measurement signal may be modified to be determined according to the following formula:
PSRS,c(i)=min{PCMAX,c(i),10log10(MSRS,c)+PO_SRS,c(y)+αSRS,c·PLc+fc(i)}
It should be understood that n is 0 or 1, which may indicate that the measurement signal is used for measurement of an uplink channel, and optionally n may also be equal to other values different from y, and the embodiment of the present application is not limited thereto.
With reference to the first aspect, in an implementation manner of the first aspect, the power parameter includes a path loss compensation factor of the measurement signal,
the first terminal device determines a second power of the measurement signal for inter-terminal device interference measurement according to a second value of the power parameter, including determining the second power according to any one of the following formulas:
PSRS,c(i)=min{PCMAX,c(i),PSRS_OFFSET,c(m′)+10log10(MSRS,c)+PO_PUSCH,c(j)+αSRS,c(k)·PLc+fc(i)}
PSRS,c(i)=min{PCMAX,c(i),10log10(MSRS,c)+PO_SRS,c(n′)+αSRS,c(k)·PLc+fc(i)}
wherein, PSRS,c(i) Indicating the second power, c indicating the cell or the first terminal device is inThe terminal transmits the carrier of the measurement signal, i represents the time unit in which the measurement signal is transmitted, PCMAX,c(i) Representing the maximum transmission power, P, of the first terminal device for transmitting the measurement signalSRS_OFFSET,c(m ') represents the power offset of the measurement signal, m' takes the value 0 or 1, PO_SRS,c(n ') represents the desired power of the measurement signal, n' takes the value 0 or 1, MSRS,c(i) Is the number of resource blocks, P, of the first terminal device configured by the first network deviceO_UE_PUSCH,c(j) Is the expected received power of the measurement signal when the uplink channel configured by the first network device is measured, k is z, z is a preset value, z is used to indicate that the measurement signal is used for inter-terminal interference measurement, α SRS,c(k) A second value, PL, representing the path loss compensation factorcRepresenting a value of downlink path loss, f, between the first network device and the first terminal devicec(i) Indicating the power adjustment value.
It is described above that when k ═ z, it means that the measurement signal is used for inter-terminal interference measurement. Alternatively, k may take other values, for example, when k is 0, it may indicate that the measurement signal is used for measurement of the uplink channel, αSRS,c(k) A first value representing a path loss compensation factor.
That is to say, when the configuration information configuration k sent by the first network device is 0, the power of the measurement signal determined by the first terminal device according to the above formula is the first power, that is, the measurement signal is used for measuring the uplink channel.
Specifically, when the measurement signal for uplink channel measurement is periodically transmitted, corresponding to k being 0, the power of the corresponding measurement signal may be determined according to any one of the following formulas:
PSRS,c(i)=min{PCMAX,c(i),PSRS_OFFSET,c(m′)+10log10(MSRS,c)+PO_PUSCH,c(j)+αSRS,c(0)·PLc+fc(i)}
PSRS,c(i)=min{PCMAX,c(i),10log10(MSRS,c)+PO_SRS,c(n′)+αSRS,c(0)·PLc+fc(i)}
when the configuration information configuration k ═ z (for example, z ═ 1 or another preset value) transmitted by the first network device, the power of the measurement signal determined by the first terminal device according to the above formula is the second power, that is, the measurement signal is used for measuring the uplink channel.
The power of the corresponding measurement signal may be modified to be determined according to any one of the following equations:
PSRS,c(i)=min{PCMAX,c(i),PSRS_OFFSET,c(m′)+10log10(MSRS,c)+PO_PUSCH,c(j)+αSRS,c(z)·PLc+fc(i)}
PSRS,c(i)=min{PCMAX,c(i),10log10(MSRS,c)+PO_SRS,c(n′)+αSRS,c(z)·PLc+fc(i)}
It should be understood that k is 0, which may indicate that the measurement signal is used for measurement of an uplink channel, and optionally k may also be equal to other values different from z, and the embodiment of the present application is not limited thereto.
It should be understood that the above only describes the case where the measured parameter is any one of the three parameters, and alternatively, the measured parameter may include two or three of the three parameters, and the embodiment of the present application is not limited thereto. When the measurement parameter includes multiple parameters, the terminal device may determine the power of the measurement signal according to the above description, and details are not described here to avoid repetition.
With reference to the first aspect, in an implementation manner of the first aspect, the receiving, by the first terminal device, power configuration information sent by the first network device includes:
the first terminal device receives the power configuration information sent by the first network device through Radio Resource Control (RRC) signaling, media access control (MAC-CE) control elements, Downlink Control Information (DCI) or broadcast messages.
In a second aspect, a method for signal measurement is provided, and it should be understood that the method on the first network device side described in the second aspect corresponds to the method on the first terminal side interacting with the first network device described in the first aspect, and the method on the first network side may refer to the description on the first terminal side, and a detailed description is appropriately omitted here to avoid redundancy.
Specifically, the method comprises the following steps: the method comprises the steps that a first network device generates power configuration information, wherein the power configuration information is used for configuring power parameters, the power parameters corresponding to a first power and a second power are configured independently, the first power is the power of a first terminal device for determining and sending a measurement signal used for measuring an uplink channel, and the second power is the power of the first terminal device for determining and sending the measurement signal used for measuring interference between terminal devices; the first network device sends power configuration information to the first terminal device.
Therefore, in the embodiment of the present application, the power parameters for uplink channel measurement and inter-terminal interference measurement are independently configured by the network device, so that the terminal device determines the power for sending the measurement signal for inter-terminal interference measurement according to the power parameter for inter-terminal interference measurement configured by the network device when performing inter-terminal interference measurement. The problem that the same power (namely the power of the measurement signal during uplink channel measurement) is used for sending the measurement signal in both channel measurement and inter-terminal interference measurement in the prior art is solved, and accurate inter-terminal interference measurement can be realized.
With reference to the second aspect, in an implementation manner of the second aspect, the method further includes: the first network device sends first indication information to the first terminal device, wherein the first indication information is used for indicating that a measurement signal sent by the first terminal device is used for inter-terminal interference measurement.
With reference to the second aspect, in an implementation manner of the second aspect, the power parameter includes at least one of the following parameters:
a power offset of the measurement signal, a desired power of the measurement signal, and a path loss compensation factor of the measurement signal.
With reference to the second aspect, in an implementation manner of the second aspect, the sending, by the first network device, power configuration information to the first terminal device includes:
the first network device sends the power configuration information to the first terminal device through a Radio Resource Control (RRC) signaling, a media access control (MAC-CE) layer control element, Downlink Control Information (DCI) or a broadcast message.
Optionally, in an implementation, the first network device sends the power configuration information to the first terminal device in a cell-level form.
For example, the first network device may notify, through the system information (e.g., SIB), a terminal device (e.g., the first terminal device) of the local cell of a value of the corresponding measurement parameter when the terminal device transmits the measurement signal.
Or, the first network device and the second network device, or the first network device and the network devices of other cells determine, through mutual information, a value of a power parameter used by the second network cell or the other cells, and then the first network device may notify, through high-level information or L1 (level 1) signaling, a terminal device (e.g., the first terminal device) of the cell of the value of a corresponding measurement parameter when sending the measurement signal.
Optionally, in an implementation, the first network device sends the power configuration information to the first terminal device in a form of a group (group) level of a terminal device in a cell.
For example, the first network device notifies, through higher layer signaling, for example, RRC signaling or MAC-CE, terminal devices (for example, the first terminal device) in the terminal device group of the value of the corresponding measurement parameter when transmitting the measurement signal.
Or, the first network device obtains the value of the power parameter used by the terminal device group in the adjacent cell through the interaction information between the network devices, and then the first network device may notify, through the high-level information or L1 (layer 1) signaling, the terminal device (for example, the first terminal device) in the terminal device group in the local cell of the value of the corresponding measurement parameter when sending the measurement signal.
It should be understood that, in the embodiments of the present application, the number of terminal devices in a terminal device group and a dividing manner of the terminal device group are not limited. For example, a cell may be divided into 2, 3 or more terminal device groups, and a terminal device group may include 2, 3, 4 or more terminal devices, which is not present in the embodiments of the present application.
Optionally, in an implementation manner, the first network device sends the power configuration information to the first terminal device in a terminal device level form.
For example, the first network device determines the value of the measurement signal through the capability reported by the first terminal device, and then the first network device may notify the first terminal device of the value of the corresponding measurement parameter when sending the measurement signal through high-level information or L1 (layer 1) signaling.
Or, the first network device obtains, through the network devices, the value of the power parameter used by the terminal device that sends the measurement signal in the neighboring cell through the mutual information, and then notifies the terminal device (for example, the first terminal device) in the local cell of the value of the power parameter of the terminal device corresponding to the measurement in the neighboring cell through RRC signaling or DCI.
It should be understood that the above describes a scheme for configuring the configuration information by the first network device for the first terminal device, alternatively the power configuration information may be predefined by the system, in which case no notification or indication by the first network device is required. The terminal device may determine the power configuration information according to system specifications, for example, the terminal device may determine a first value and a second value of the power parameter.
In a third aspect, a method for signal measurement is provided, the method including:
the second terminal equipment determines the receiving power of the measuring signal sent by the first terminal equipment;
the second terminal equipment determines the interference power of the first terminal equipment to the second terminal equipment according to the received power and the compensation power of the measurement signal;
and under the condition that the interference power is determined to be larger than the interference power threshold value, the second terminal equipment sends first interference indication information to the second network equipment, wherein the first interference indication information indicates the interference power.
Therefore, in the embodiment of the present application, the terminal device does not report the interference condition when the interference is small, and only when the interference is large (the interference power is greater than the interference power threshold), the terminal device sends the interference indication information indicating the interference power to the network device, so that the signaling overhead can be reduced.
With reference to the third aspect, in an implementation manner of the third aspect, before the second terminal device determines the interference power of the first terminal device to the second terminal device according to the received power and the compensation power of the measurement signal, the method further includes:
the second terminal device receives power compensation indication information sent by the second network device, wherein the power compensation indication information indicates the compensation power.
In a fourth aspect, a method of signal measurement is provided, the method comprising:
the second network equipment sends power compensation indication information to the second terminal equipment, and the power compensation indication information indicates the compensation power of the measurement signal;
the second network device receives first interference indication information sent by the second terminal device, the first interference indication information indicates interference power of the first terminal device to the second terminal device, and the interference power is determined by the second terminal device according to the received power and the compensation power of the measurement signal.
Therefore, in the embodiment of the present application, the power parameters for uplink channel measurement and inter-terminal interference measurement are independently configured by the network device, so that the terminal device determines the power for sending the measurement signal for inter-terminal interference measurement according to the power parameter for inter-terminal interference measurement configured by the network device when performing inter-terminal interference measurement. The problem that the same power (namely the power of the measurement signal during uplink channel measurement) is used for sending the measurement signal in channel measurement and inter-terminal interference measurement in the prior art is solved, so that accurate inter-terminal interference measurement can be realized, and further network equipment can perform regulation and control processing according to the inter-terminal interference measurement result, so that inter-terminal interference is reduced, and network performance is improved.
In a fifth aspect, a method of signal measurement is provided, the method comprising:
the second network equipment receives second interference power indication information sent by the second terminal equipment, the second interference power indication information is used for indicating the second terminal equipment to receive the receiving power of the measuring signal sent by the first terminal equipment,
and the second network equipment determines the interference power of the first terminal equipment to the second terminal equipment according to the received power and the compensation power of the measurement signal.
Therefore, in the embodiment of the present application, the power parameters for uplink channel measurement and inter-terminal interference measurement are independently configured by the network device, so that the terminal device determines the power for sending the measurement signal for inter-terminal interference measurement according to the power parameter for inter-terminal interference measurement configured by the network device when performing inter-terminal interference measurement. The problem that the same power (namely the power of the measurement signal during uplink channel measurement) is used for sending the measurement signal in channel measurement and inter-terminal interference measurement in the prior art is solved, so that accurate inter-terminal interference measurement can be realized, and further network equipment can perform regulation and control processing according to the inter-terminal interference measurement result, so that inter-terminal interference is reduced, and network performance is improved.
In a sixth aspect, a first terminal device is provided, where the first terminal device includes various modules or units configured to perform the method in the first aspect or any one of the possible implementation manners of the first aspect.
In a seventh aspect, a first network device is provided, which includes modules or units for performing the method of the second aspect or any one of the possible implementations of the second aspect.
In an eighth aspect, a second terminal device is provided, where the second terminal device includes various modules or units for executing the method in the third aspect or any one of the possible implementation manners of the first aspect.
In a ninth aspect, a second network device is provided, which comprises modules or units for performing the method of the fourth aspect or any one of the possible implementations of the fourth aspect.
In a tenth aspect, a second network device is provided, which comprises modules or units for performing the method of the fifth aspect or any one of the possible implementations of the fifth aspect.
In an eleventh aspect, a first terminal device is provided that includes a transceiver, a processor, and a memory. The processor is configured to control the transceiver to transceive signals, the memory is configured to store a computer program, and the processor is configured to retrieve and execute the computer program from the memory, so that the first terminal device performs the method of the first aspect and its possible implementation.
In a twelfth aspect, a first network device is provided that includes a transceiver, a processor, and a memory. The processor is configured to control the transceiver to transceive signals, the memory is configured to store a computer program, and the processor is configured to retrieve and execute the computer program from the memory, so that the first network device performs the method of the second aspect and possible implementations thereof.
In a thirteenth aspect, a second terminal device is provided that includes a transceiver, a processor, and a memory. The processor is configured to control the transceiver to transceive signals, the memory is configured to store a computer program, and the processor is configured to retrieve and execute the computer program from the memory, so that the second terminal device performs the method of the third aspect and possible implementations thereof.
In a fourteenth aspect, a second network device is provided that includes a transceiver, a processor, and a memory. The processor is configured to control the transceiver to transceive signals, the memory is configured to store a computer program, and the processor is configured to retrieve and execute the computer program from the memory, so that the second network device performs the method of the fourth aspect and possible implementations thereof.
In a fifteenth aspect, a second network device is provided that includes a transceiver, a processor, and a memory. The processor is configured to control the transceiver to transmit and receive signals, the memory is configured to store a computer program, and the processor is configured to call and run the computer program from the memory, so that the second network device performs the method of the fifth aspect and possible implementation manner thereof.
In a possible design, the scheme implemented by the first terminal device may be implemented by a chip.
In a possible design, the scheme implemented by the first network device may be implemented by a chip.
In a possible design, the solution implemented by the second terminal device may be implemented by a chip.
In a possible design, the scheme implemented by the second network device may be implemented by a chip.
In a sixteenth aspect, there is provided a computer program product comprising: a computer program (which may also be referred to as code, or instructions), which when executed, causes a computer to perform the method of any of the possible implementations of the first to fifth aspects and the first to fourth aspects described above.
A seventeenth aspect provides a computer-readable medium storing a computer program (which may also be referred to as code or instructions) which, when run on a computer, causes the computer to perform the method of any one of the possible implementations of the first to fifth aspects and of the first to fifth aspects.
Therefore, in the embodiment of the present application, the power parameters for uplink channel measurement and inter-terminal interference measurement are independently configured by the network device, so that the terminal device determines the power for sending the measurement signal for inter-terminal interference measurement according to the power parameter for inter-terminal interference measurement configured by the network device when performing inter-terminal interference measurement. The problem that the same power (namely the power of the measurement signal during uplink channel measurement) is used for sending the measurement signal in both channel measurement and inter-terminal interference measurement in the prior art is solved, and accurate inter-terminal interference measurement can be realized.
Drawings
Fig. 1 is a schematic diagram of a scenario to which an embodiment of the present application is applicable.
Fig. 2 is a flow chart illustrating a method of measuring a signal according to an embodiment of the present application.
Fig. 3 is a schematic block diagram of a first terminal device according to one embodiment of the present application.
Fig. 4 is a schematic block diagram of a first network device according to one embodiment of the present application.
Fig. 5 is a schematic block diagram of a second terminal device according to an embodiment of the present application.
Fig. 6 is a schematic block diagram of a second network device according to one embodiment of the present application.
Detailed Description
The technical solution in the present application will be described below with reference to the accompanying drawings.
Embodiments of the present application are applicable to various communication systems, and thus, the following description is not limited to a specific communication system. For example, the embodiments of the present invention may be applied to a global system for mobile communications (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) system, a General Packet Radio Service (GPRS), a Long Term Evolution (LTE) system, a Frequency Division Duplex (FDD) system, a Time Division Duplex (TDD) system, a Universal Mobile Telecommunications System (UMTS), a Wireless Local Area Network (WLAN), a wireless fidelity (WiFi), and a next generation communication system (i.e., a fifth generation communication system, such as a radio network (NR 5, 5) communication system.
In this embodiment, the network device may be a Base Transceiver Station (BTS) in global system for mobile communications (GSM) or Code Division Multiple Access (CDMA), a base station (nodeB, NB) in Wideband Code Division Multiple Access (WCDMA), an evolved base station (eNB/eNodeB) in Long Term Evolution (LTE), a relay station or an access point, or a network side device in a future 5G network, for example, a transmission point (TRP or TP) in the NR system, a base station (gNB) in the NR system, a radio unit in the NR system, such as a remote radio unit, one or a group (including multiple antenna panels) of base stations in the 5G system, and the like. Different network devices may be located in the same cell or different cells, and are not limited herein.
In the embodiments of the present application, a terminal device may also be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. An access terminal may be a cellular telephone, a cordless telephone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle mounted device, a wearable device, a drone device, and a terminal device in a future 5G network.
By way of example, and not limitation, in embodiments of the present invention, the terminal device may also be a wearable device. Wearable equipment can also be called wearable intelligent equipment, is the general term of applying wearable technique to carry out intelligent design, develop the equipment that can dress to daily wearing, like glasses, gloves, wrist-watch, dress and shoes etc.. A wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. The generalized wearable smart device includes full functionality, large size, and can implement full or partial functionality without relying on a smart phone, such as: smart watches or smart glasses and the like, and only focus on a certain type of application functions, and need to be used in cooperation with other devices such as smart phones, such as various smart bracelets for physical sign monitoring, smart jewelry and the like.
In addition, in this embodiment of the present invention, a network device provides a service for a cell, and a terminal device communicates with the network device through a transmission resource (for example, a frequency domain resource or a spectrum resource) used by the cell, where the cell may be a cell corresponding to the network device (for example, a base station), and the cell may belong to a macro base station or a base station corresponding to a Small cell (Small cell), where the Small cell may include: urban cells (Metro cells), Micro cells (Micro cells), Pico cells (Pico cells), Femto cells (Femto cells), and the like, and the small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-rate data transmission services. In addition, the cell may also be a super cell (supercell).
In addition, multiple cells can simultaneously work at the same frequency on a carrier in an LTE system or a 5G system, and under some special scenes, the concepts of the carrier and the cells can also be considered to be equivalent. For example, in a Carrier Aggregation (CA) scenario, when a secondary Carrier is configured for a UE, a Carrier index of the secondary Carrier and a Cell identity (Cell identity) of a secondary Cell operating on the secondary Carrier are carried at the same time, in which case, the Carrier and the Cell may be considered to be equivalent in concept, for example, it is equivalent that the UE accesses one Carrier and one Cell.
Fig. 1 is a schematic diagram of a communication system to which embodiments of the present application are applicable. As shown in fig. 1, the communication system 100 includes a first network device 111, a second network device 121, and a first terminal device 112 located in a first cell covered by the first network device 111 and a second terminal device 122 located in a second cell covered by the second network device 121.
When the uplink and downlink transmission directions of the first cell and the second cell are not consistent, cross-link interference (CLI) may be generated, for example, an uplink signal transmitted by the first terminal device 122 to the first network device 121 may cause interference to the second terminal device 122.
At present, the terminal device may implement the above-mentioned cross interference measurement by measuring the measurement signal transmitted by the uplink channel, however, in some special cases, the measurement signal transmitted by the uplink channel is difficult to meet the requirement of cross interference measurement. Resulting in inaccurate cross-interference measurements.
For example, when the distance between the first terminal device and the second terminal device is short, the measurement signal transmitted by the first terminal device through the upper and lower channels may greatly interfere with the second terminal device, so that the power of the measurement signal acquired by the second terminal device is large, and may exceed the upper limit of the power amplifier of the second terminal device, which may cause the Power Amplifier (PA) of the second terminal device to be blocked (block), and finally cause the second terminal device to inaccurate CLI measurement.
In view of the problems of the existing schemes, the embodiments of the present application skillfully provide a method for signal measurement, which abandons the scheme of measuring interference through a measurement signal transmitted through an uplink channel in the prior art, independently configure power parameters for uplink channel measurement and inter-terminal interference measurement through network equipment, and when performing inter-terminal interference measurement, enable the terminal equipment to determine the power of a measurement signal to be sent for inter-terminal interference measurement according to the power parameters for inter-terminal interference measurement configured by the network equipment. The problem that the same power (namely the power of the measurement signal during uplink channel measurement) is used for sending the measurement signal in both channel measurement and inter-terminal interference measurement in the prior art is solved, and therefore accurate inter-terminal interference measurement can be achieved.
For convenience of understanding and explanation, the following description will be given by way of example, and not limitation, to describe the implementation and actions of the method for transmitting channel state information in a communication system.
Fig. 2 is a schematic flow diagram of a method of signal measurement according to one embodiment of the invention. The method shown in fig. 2 may be applied to any of the above communication systems, and specifically, the method shown in fig. 2 includes:
and 210, generating, by a first network device, power configuration information, where the power configuration information is used to configure a power parameter, where the power parameter corresponding to a first power and a second power is configured independently, the first power is a power for determining, by the first terminal device, to transmit a measurement signal for uplink channel measurement, and the second power is a power for determining, by the first terminal device, to transmit the measurement signal for inter-terminal device interference measurement.
It should be understood that in the embodiment of the present application, the "independent configuration" of the power parameter corresponding to the first power and the second power may also be referred to as "separate configuration" of the power parameter corresponding to the first power and the second power; in other words, the power parameter corresponding to the first power and the power parameter corresponding to the second power are independent and have no correlation. For example, the power configuration information may correspond to two different fields in the same message, where the two fields configure the power parameter respectively, for example, a first field is used to configure a first value of the power parameter corresponding to the first power, and a second field is used to configure a second value of the power parameter corresponding to the second power, where the first value and the second value are independent and have no association relationship. Optionally, the power configuration information may also correspond to two different messages, and the two different messages respectively configure the power parameter, for example, a first message is used to configure a first value of the power parameter corresponding to the first power, and a second message is used to configure a second value of the power parameter corresponding to the second power, where the first value and the second value are independent and have no association relationship.
That is to say, the network device may configure two values, namely a first value and a second value, of the power parameter through the power configuration information, where the two values have no association relationship, for example, the two values are different or may also be the same, and the embodiment of the present application is not limited thereto. The first value may be used by the first terminal device to determine the first power, and the second value may be used by the first terminal device to determine the second power.
220, the first network device sends power configuration information to the first terminal device.
Correspondingly, the first terminal device receives the power configuration information sent by the first network device.
Optionally, as another embodiment, the sending, by the first network device, the power configuration information to the first terminal device includes:
the first network device sends the power configuration information to the first terminal device through a Radio Resource Control (RRC) signaling, a media access control (MAC-CE) layer control element, Downlink Control Information (DCI) or a broadcast message.
Optionally, in an implementation, the first network device sends the power configuration information to the first terminal device in a cell-level form.
For example, the first network device may notify, through the system information (e.g., SIB), a terminal device (e.g., the first terminal device) of the local cell of a value of the corresponding measurement parameter when the terminal device transmits the measurement signal.
Or, between the first network device and the second network device, or between the first network device and the network device of another cell, the value of the power parameter used by the second network cell or the other cell is determined through the mutual information, and then the first network device may notify, through the high-layer information or L1 (layer 1) signaling, the terminal device (e.g., the first terminal device) of the cell of the value of the corresponding measurement parameter when sending the measurement signal.
Optionally, in an implementation manner, the first network device sends the power configuration information to the first terminal device in a group (group) level manner.
For example, the first network device notifies, through higher layer signaling, for example, RRC signaling or MAC-CE, terminal devices (for example, the first terminal device) in the terminal device group of the value of the corresponding measurement parameter when transmitting the measurement signal.
Or, the first network device obtains the value of the power parameter used by the terminal device group in the adjacent cell through the interaction information between the network devices, and then the first network device may notify, through the high-level information or L1 (layer 1) signaling, the terminal device (for example, the first terminal device) in the terminal device group in the local cell of the value of the corresponding measurement parameter when sending the measurement signal.
It should be understood that, in the embodiments of the present application, the number of terminal devices in a terminal device group and a dividing manner of the terminal device group are not limited. For example, a cell may be divided into 2, 3 or more terminal device groups, and a terminal device group may include 2, 3, 4 or more terminal devices, which is not present in the embodiments of the present application.
Optionally, in an implementation, the first network device sends the power configuration information to the first terminal device in a terminal device level.
For example, the first network device determines the value of the measurement signal through the capability reported by the first terminal device, and then the first network device may notify the first terminal device of the value of the corresponding measurement parameter when sending the measurement signal through high-level information or L1 (layer 1) signaling.
Or, the first network device obtains, through the network devices, the value of the power parameter used by the terminal device that sends the measurement signal in the neighboring cell through the mutual information, and then notifies the terminal device (for example, the first terminal device) in the local cell of the value of the power parameter of the terminal device corresponding to the measurement in the neighboring cell through RRC signaling or DCI.
It should be understood that the above describes a scheme for configuring the configuration information by the first network device, alternatively, step 220 is an alternative, and the power configuration information may also be predefined by the system, in which case, no notification or indication by the first network device is needed. The terminal device may determine the power configuration information according to system specifications, for example, the terminal device may determine a first value and a second value of the power parameter.
The first terminal device determines a second power of the measurement signal for inter-terminal device interference measurement based on the power parameter 230.
Optionally, as another embodiment, the method further includes: the first network device sends scene indication information to the first terminal device, where the scene indication information is used to indicate that a measurement signal sent by the first terminal device is used for inter-terminal interference measurement.
Optionally, as another embodiment, the scenario indication information may be second scenario indication information, and the method may further include that the first network device sends, to the first terminal device, first scenario indication information, where the first scenario indication information is used to indicate that a measurement signal sent by the first terminal device is used for uplink channel measurement.
Specifically, the first terminal device may select a value of a corresponding power parameter according to a scene indicated by corresponding scene indication information (may also be referred to as scene configuration information) to determine the power for transmitting the measurement signal.
For example, when the measurement signal is used for inter-terminal interference measurement, the first terminal device may receive second scenario indication information sent by the first network device, and the first terminal device determines, according to the indication of the second scenario indication information, that the measurement signal is used for inter-terminal interference measurement, and then the first terminal device may determine, according to a second value of the power parameter configured by the configuration information, a second power for sending the measurement signal, and send the measurement signal measured between terminals with the second power.
Or, when the measurement signal is used for uplink channel measurement, the first terminal device may receive first scenario indication information sent by the first network device, and the first terminal device determines, according to an indication of the first scenario indication information, that the measurement signal is used for uplink channel measurement, and then the first terminal device may determine, according to a first value of a power parameter configured by the configuration information, a first power for sending the measurement signal, and send, with the first power, the measurement signal used for uplink channel measurement.
It is described above that the power parameter may comprise at least one of the following three parameters: a power offset of the measurement signal, a desired power of the measurement signal, and a path loss compensation factor of the measurement signal.
The following describes in detail a specific form in which the first terminal device determines the second power of the measurement signal for inter-terminal device interference measurement, with the power parameter being the power offset of the measurement signal, the desired power of the measurement signal, or the path loss compensation factor of the measurement signal.
The first condition is as follows: the power parameter comprises a power offset of the measurement signal.
It should be understood that in case one, the determination of the power of the measurement signal may be determined based on some parameters of the PUSCH, i.e. the power offset may be performed on the basis of the parameters of the PUSCH to obtain the power of the measurement signal. Since the parameters of the uplink channel need to be used jointly, the configuration information configured by the first network device for determining the power parameter of the measurement signal in this case may also be referred to as joint configuration.
Specifically, the determining, by the first terminal device, a second power of the measurement signal for inter-terminal device interference measurement according to the second value of the power parameter includes determining the second power according to the following formula:
PSRS,c(i)=min{PCMAX,c(i),PSRS_OFFSET,c(m)+10log10(MSRS,c)+PO_PUSCH,c(j)+αc(j)·PLc+fc(i)}
Wherein, PSRS,c(i) Indicating the second power, c indicating the cell in which the first terminal device is located or the carrier in which the terminal transmits the measurement signal, i indicating the time unit in which the measurement signal is transmitted, PCMAX,c(i) Indicating the maximum transmission power of the first terminal device for transmitting the measurement signal, where m is x, x is a preset value, x is used to indicate that the measurement signal is used for inter-terminal interference measurement, and P isSRS_OFFSET,c(m) represents a second value of the power offset; mSRS,c(i) Is the number of resource blocks, P, of the first terminal device configured by the first network deviceO_UE_PUSCH,c(j) Is the expected received power, alpha, of the measurement signal during the uplink channel measurement configured by the first network devicec(j) Representing the path loss compensation factor, PLcRepresenting a value of downlink path loss, f, between the first network device and the first terminal devicec(i) Indicating the power adjustment value.
It is described above that when m ═ x, it means that the measurement signal is used for inter-terminal interference measurement. Alternatively, m may take other values, for example, when m is 0 or 1, it may indicate that the measurement signal is used for measurement of the uplink channel, PSRS_OFFSET,c(m) represents a first value of the power offset.
That is to say, when the configuration information configuration m sent by the first network device is 0 or 1, the power of the measurement signal determined by the first terminal device according to the above formula is the first power, that is, the measurement signal is used for measuring the uplink channel.
Specifically, when the measurement signal for uplink channel measurement is periodically transmitted, corresponding to m being 0, the power of the corresponding measurement signal may be determined according to the following formula:
PSRS,c(i)=min{PCMAX,c(i),PSRS_OFFSET,c(0)+10log10(MSRS,c)+PO_PUSCH,c(j)+αc(j)·PLc+fc(i)}
specifically, when the measurement signal for uplink channel measurement is transmitted aperiodically, corresponding to m being 1, the power of the corresponding measurement signal may be determined according to the following formula:
PSRS,c(i)=min{PCMAX,c(i),PSRS_OFFSET,c(1)+10log10(MSRS,c)+PO_PUSCH,c(j)+αc(j)·PLc+fc(i)}
when the configuration information configuration m sent by the first network device is x (for example, x is 2 or another preset value), the power of the measurement signal determined by the first terminal device according to the above formula is the second power, that is, the measurement signal is used for measuring the uplink channel, and the power of the corresponding measurement signal may be modified to be determined according to the following formula:
PSRS,c(i)=min{PCMAX,c(i),PSRS_OFFSET,c(x)+10log10(MSRS,c)+PO_PUSCH,c(j)+αc(j)·PLc+fc(i)}
it should be understood that m is 0 or 1, which may indicate that the measurement signal is used for measurement of an uplink channel, and optionally m may also be equal to other values different from x, and the embodiment of the present application is not limited thereto.
Case two: the power parameter comprises a desired power of the measurement signal.
It should be understood that in case one, the determination of the power of the measurement signal may not be based on the parameter determination of the PUSCH, and the determination of the relevant parameter of the measurement signal needs to be configured separately. The configuration information configured by the first network device for determining the power parameter of the measurement signal may therefore also be referred to as a separate configuration in this case.
Specifically, the determining, by the first terminal device, a second power of the measurement signal for inter-terminal device interference measurement according to the second value of the power parameter includes determining the second power according to the following formula:
PSRS,c(i)=min{PCMAX,c(i),10log10(MSRS,c)+PO_SRS,c(n)+αSRS,c·PLc+fc(i)}
wherein, PSRS,c(i) Indicating the second power, c indicating the cell in which the first terminal device is located or the carrier in which the terminal transmits the measurement signal, i indicating the time unit in which the measurement signal is transmitted, PCMAX,c(i) Represents the maximum transmission power, M, of the first terminal device for transmitting the measurement signalSRS,c(i) The number of resource blocks of the first terminal device configured by the first network device, where n is y, y is a preset value, y is used to indicate that the measurement signal is used for inter-terminal interference measurement, and P isO_SRS,c(n) represents a second value of the desired power; alpha is alphac(j) Representing the path loss compensation factor, PLcRepresenting a value of downlink path loss, f, between the first network device and the first terminal devicec(i) Indicating the power adjustment value.
It is described above that when n ═ y, it means that the measurement signal is used for inter-terminal interference measurement. Alternatively, n may take other values, for example, when n is 0 or 1, it may indicate that the measurement signal is used for measurement of the uplink channel, and PO_SRS,c(n) represents a second value of the desired power.
That is to say, when the configuration information configuration n sent by the first network device is 0 or 1, the power of the measurement signal determined by the first terminal device according to the above formula is the first power, that is, the measurement signal is used for measuring the uplink channel.
Specifically, when a measurement signal for uplink channel measurement is periodically transmitted, corresponding to n being 0, the power of the corresponding measurement signal may be determined according to the following formula:
PSRS,c(i)=min{PCMAX,c(i),10log10(MSRS,c)+PO_SRS,c(0)+αSRS,c·PLc+fc(i)}
specifically, when the measurement signal for uplink channel measurement is transmitted non-periodically, corresponding to n being 1, the power of the corresponding measurement signal may be determined according to the following formula:
PSRS,c(i)=min{PCMAX,c(i),10log10(MSRS,c)+PO_SRS,c(1)+αSRS,c·PLc+fc(i)}
when the configuration information configuration n ═ x (for example, x ═ 2 or another preset value) sent by the first network device, the power of the measurement signal determined by the first terminal device according to the above formula is the second power, that is, the measurement signal is used for the measurement of the uplink channel, and the power of the corresponding measurement signal may be modified to be determined according to the following formula:
PSRS,c(i)=min{PCMAX,c(i),10log10(MSRS,c)+PO_SRS,c(y)+αSRS,c·PLc+fc(i)}
it should be understood that n is 0 or 1, which may indicate that the measurement signal is used for measurement of an uplink channel, and optionally n may also be equal to other values different from y, and the embodiment of the present application is not limited thereto.
Case three: the power parameter comprises a path loss compensation factor of the measurement signal.
It should be understood that in case three, the power parameter determining the power of the measurement signal may be configured jointly, as shown in the first equation below, similar to case one, or separately, as shown in the second equation below, similar to case two.
Specifically, the first terminal device determines, according to the second value of the power parameter, a second power of the measurement signal for inter-terminal device interference measurement, where the second power is determined according to any one of the following formulas:
PSRS,c(i)=min{PCMAX,c(i),PSRS_OFFSET,c(m′)+10log10(MSRS,c)+PO_PUSCH,c(j)+αSRS,c(k)·PLc+fc(i)}
PSRS,c(i)=min{PCMAX,c(i),10log10(MSRS,c)+PO_SRS,c(n′)+αSRS,c(k)·PLc+fc(i)}
wherein, PSRS,c(i) Indicating the second power, c indicating the cell in which the first terminal device is located or the carrier in which the terminal transmits the measurement signal, i indicating the time unit in which the measurement signal is transmitted, PCMAX,c(i) Representing the maximum transmission power, P, of the first terminal device for transmitting the measurement signalSRS_OFFSETC (m ') represents the power offset of the measurement signal, m' takes the value 0 or 1, PO_SRS,c(n ') represents the desired power of the measurement signal, n' takes the value 0 or 1, MSRS,c(i) Is the number of resource blocks, P, of the first terminal device configured by the first network deviceO_UE_PUSCH,c(j) Is the expected received power of the measurement signal when the uplink channel configured by the first network device is measured, k is z, z is a preset value, z is used to indicate that the measurement signal is used for inter-terminal interference measurement, α SRS,c(k) A second value, PL, representing the path loss compensation factorcRepresenting a value of downlink path loss, f, between the first network device and the first terminal devicec(i) Indicating the power adjustment value.
It is described above that when k ═ z, it means that the measurement signal is used for inter-terminal interference measurement. Alternatively, k may take other values, for example, when k is 0, it may indicate that the measurement signal is used for measurement of the uplink channel, αSRS,c(k) A first value representing a path loss compensation factor.
That is to say, when the configuration information configuration k sent by the first network device is 0, the power of the measurement signal determined by the first terminal device according to the above formula is the first power, that is, the measurement signal is used for measuring the uplink channel.
Specifically, when the measurement signal for uplink channel measurement is periodically transmitted, corresponding to k being 0, the power of the corresponding measurement signal may be determined according to any one of the following formulas:
PSRS,c(i)=min{PCMAX,c(i),PSRS_OFFSET,c(m′)+10log10(MSRS,c)+PO_PUSCH,c(j)+αSRS,c(0)·PLc+fc(i)}
PSRS,c(i)=min{PCMAX,c(i),10log10(MSRS,c)+PO_SRS,c(n′)+αSRS,c(0)·PLc+fc(i)}
when the configuration information configuration k ═ z (for example, z ═ 1 or another preset value) sent by the first network device, the power of the measurement signal determined by the first terminal device according to the above formula is the second power, that is, the measurement signal is used for measuring the uplink channel.
The power of the corresponding measurement signal may be modified to be determined according to any one of the following equations:
PSRS,c(i)=min{PCMAX,c(i),PSRS_OFFSET,c(m′)+10log10(MSRS,c)+PO_PUSCH,c(j)+αSRS,c(z)·PLc+fc(i)}
PSRS,c(i)=min{PCMAX,c(i),10log10(MSRS,c)+PO_SRS,c(n′)+αSRS,c(z)·PLc+fc(i)}
It should be understood that, it is described above that k is 0, which may indicate that the measurement signal is used for measurement of an uplink channel, and optionally k may also be equal to other values different from z, and the embodiment of the present application is not limited thereto.
It should be understood that the above only describes the case where the measured parameter is any one of the three parameters, and alternatively, the measured parameter may include two or three of the three parameters, and the embodiment of the present application is not limited thereto. When the measurement parameter includes multiple parameters, the terminal device may determine the power of the measurement signal according to the above description, and details are not described here to avoid repetition.
The first terminal device transmits a measurement signal for inter-terminal device interference measurement using the second power 240.
Specifically, when the scene indication information indicates that the measurement signal is used for inter-terminal interference measurement, the first terminal device determines a second power of the measurement signal according to a second value of the measurement parameter configured by the configuration information, and sends the measurement signal used for inter-terminal interference measurement by using the second power.
Therefore, in the embodiment of the present application, the power parameters for uplink channel measurement and inter-terminal interference measurement are independently configured by the network device, so that the terminal device determines the power for sending the measurement signal for inter-terminal interference measurement according to the power parameter for inter-terminal interference measurement configured by the network device when performing inter-terminal interference measurement. The problem that the same power (namely the power of the measurement signal during uplink channel measurement) is used for sending the measurement signal in both channel measurement and inter-terminal interference measurement in the prior art is solved, and accurate inter-terminal interference measurement can be realized.
Optionally, as another embodiment, when the scene indication information indicates that the measurement signal is used for uplink channel measurement, the first terminal device determines a first power of the measurement signal according to a first value of a measurement parameter configured by the configuration information, and sends the measurement signal used for uplink channel measurement by using the first power.
The second terminal device determines 250 the received power of the measurement signal transmitted by the first terminal device.
And 260, the second terminal equipment sends interference power indication information to the second network equipment.
In one implementation, the second terminal device needs to compensate for the received power of the measurement signal to determine the interference power.
Specifically, as an embodiment, the second terminal device determines an interference power of the first terminal device to the second terminal device according to the received power and the compensation power of the measurement signal, and then the second terminal device sends interference power indication information to the second network device, where the interference power indication information indicates the interference power.
It should be understood that, in this embodiment of the present application, the compensatory power may be indicated by the system configuration or the second network device, and accordingly, as another embodiment, before determining the interference power, the method may further include the second terminal device receiving power compensation indication information sent by the second network device, where the power compensation indication information indicates the compensatory power.
Specifically, the power compensation indication information may be sent by the network device through radio resource control RRC signaling, a media access control layer control element MAC-CE, downlink control information DCI, or a broadcast message, which is not limited in this embodiment of the present invention.
Optionally, as another embodiment, after determining the interference power, the second terminal device may not report to the second network device first, and it needs to determine whether the interference power is tolerable (for example, the interference is relatively small, and does not affect normal traffic transmission), that is, determine whether the interference power is greater than a power threshold, and when the interference power is greater than the interference power that is determined to be greater than the interference power threshold, the second terminal device sends first interference indication information to the second network device, where the first interference indication information indicates the interference power.
Therefore, in the embodiment of the present application, the terminal device does not report the interference condition when the interference is small, and only when the interference is large (the interference power is greater than the interference power threshold), the terminal device sends the interference indication information indicating the interference power to the network device, so that the signaling overhead can be reduced.
In another implementation manner, the second terminal device directly reports the received power of the measurement signal without performing power compensation, and in this case, the interference power indication information indicates the power of the measurement signal received by the second terminal device.
Therefore, in the embodiment of the application, the second terminal device directly reports the measured power of the measurement signal to the second network device, and the second network device performs compensation without performing power compensation, so that the computational complexity of the second terminal device can be reduced.
270, the second network device performs a regulation process.
Specifically, when the interference power reported by the terminal device is greater than the power threshold, the second network device performs regulation and control processing such as coordinated scheduling and power control, so as to reduce the interference of the first terminal device to the second terminal device.
Or, in the case that the terminal device reports the received power of the measurement signal, the second network device determines the interference power of the first terminal device to the second terminal device according to the received power and the compensation power of the measurement signal. And under the condition that the interference power is determined to be larger than the power threshold, the second network equipment performs corresponding regulation and control processing so as to reduce the interference of the first terminal equipment to the second terminal equipment.
It should be understood that, in the embodiment of the present application, a specific manner of the specific regulation and control processing of the second network device may refer to corresponding processing performed when the network device determines that the inter-terminal interference is large in the existing standard, and details are not described here.
Therefore, in the embodiment of the present application, the power parameters for uplink channel measurement and inter-terminal interference measurement are independently configured by the network device, so that the terminal device determines, according to the power parameter for inter-terminal interference measurement configured by the network device, the power for sending the measurement signal for inter-terminal interference measurement when performing inter-terminal interference measurement. The problem that the same power (namely the power of the measurement signal during uplink channel measurement) is used for sending the measurement signal in channel measurement and inter-terminal interference measurement in the prior art is solved, so that accurate inter-terminal interference measurement can be realized, and further network equipment can perform regulation and control processing according to the inter-terminal interference measurement result, so that inter-terminal interference is reduced, and network performance is improved.
It should be understood that the above example of fig. 2 is only for assisting the skilled person in understanding the embodiments of the present invention, and is not intended to limit the embodiments of the present invention to the specific values or specific scenarios illustrated. It will be apparent to those skilled in the art that various equivalent modifications or variations are possible in light of the example given in fig. 2, and such modifications or variations are intended to be included within the scope of embodiments of the present invention.
It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
The method for measuring signals according to the embodiment of the present invention is described in detail above with reference to fig. 2, and the apparatus according to the embodiment of the present invention is described below with reference to fig. 3 to 6.
Fig. 3 shows a schematic block diagram of a first terminal device 300 according to an embodiment of the application, in particular, as shown in fig. 3, the first terminal device 300 comprises: a processor 310 and a transceiver 320.
Optionally, the transceiver 320 may include a control circuit and an antenna, wherein the control circuit may be used for conversion of baseband signals and radio frequency signals and processing of radio frequency signals, and the antenna may be used for transceiving radio frequency signals.
Optionally, the first terminal device may further include a memory 330 and the like. The memory is used primarily for storing software programs and data. The processor 310 may read the software program in the memory, interpret and execute the instructions of the software program, and process the data of the software program.
The processor 310 may be configured to process the communication protocol and the communication data, and control the entire first terminal device, execute a software program, and process data of the software program, for example, to support the first terminal device to perform corresponding operations in the foregoing method embodiments.
Specifically, the transceiver is configured to receive power configuration information sent by a first network device, where the power configuration information is used to configure a power parameter, where the power parameter corresponding to a first power and a second power is configured independently, the first power is a power for a first terminal device to determine to send a measurement signal for uplink channel measurement, and the second power is a power for the first terminal device to determine to send the measurement signal for inter-terminal device interference measurement;
the processor is configured to determine a second power for transmitting the measurement signal for inter-terminal device interference measurement according to the power parameter;
the transceiver also transmits the measurement signal for inter-terminal device interference measurement using the second power.
Therefore, in the embodiment of the present application, the power parameters for uplink channel measurement and inter-terminal interference measurement are independently configured by the network device, so that the terminal device determines the power for sending the measurement signal for inter-terminal interference measurement according to the power parameter for inter-terminal interference measurement configured by the network device when performing inter-terminal interference measurement. The problem that the same power (namely the power of the measurement signal during uplink channel measurement) is used for sending the measurement signal in both channel measurement and inter-terminal interference measurement in the prior art is solved, and accurate inter-terminal interference measurement can be realized.
Optionally, as another embodiment, the transceiver is further configured to receive scenario indication information sent by the first network device before the processor determines, according to the power parameter, to send the second power of the measurement signal for inter-terminal interference measurement, where the scenario indication information is used to indicate that the measurement signal sent by the first terminal device is used for inter-terminal interference measurement;
the processor is specifically configured to select a second value of the power parameter from values of the power parameter configured by the first network device according to the scene indication information, where the value of the power parameter configured by the first network device includes a first value of the power parameter and the second value of the power parameter, the first value is used by the first terminal device to determine the first power, and the second value is used by the first terminal device to determine the second power;
and determining a second power of the measurement signal for sending the interference measurement between the terminal devices according to the second value of the power parameter.
Optionally, as another embodiment, the power parameter includes at least one of the following parameters:
a power offset of the measurement signal, a desired power of the measurement signal, and a path loss compensation factor of the measurement signal.
Optionally, as another embodiment, the power parameter comprises a power offset of the measurement signal,
the processor is specifically configured to determine the second power according to the following equation:
PSRS,c(i)=min{PCMAX,c(i),PSRS_OFFSET,c(m)+10log10(MSRS,c)+PO_PUSCH,c(j)+αc(j)·PLc+fc(i)}
wherein, PSRS,c(i) Indicating the second power, c indicating the cell in which the first terminal device is located or the carrier in which the terminal transmits the measurement signal, i indicating the time unit in which the measurement signal is transmitted, PCMAX,c(i) Indicating the maximum transmission power of the first terminal device for transmitting the measurement signal, where m is x, x is a preset value, x is used to indicate that the measurement signal is used for inter-terminal interference measurement, and P isSRS_OFFSET,c(m) represents a second value of the power offset; mSRS,c(i) Is the number of resource blocks, P, of the first terminal device configured by the first network deviceO_UE_PUSCH,c(j) Is the expected received power, alpha, of the measurement signal during the uplink channel measurement configured by the first network devicec(j) Representing the path loss compensation factor, PLcRepresenting a value of downlink path loss, f, between the first network device and the first terminal devicec(i) Indicating the power adjustment value.
Optionally, as another embodiment, the power parameter comprises a desired power of the measurement signal,
the processor is specifically configured to determine the second power according to the following equation:
PSRS,c(i)=min{PCMAX,c(i),10log10(MSRS,c)+PO_SRS,c(n)+αSRS,c·PLc+fc(i)}
wherein, PSRS,c(i) Indicating the second power, c indicating the cell in which the first terminal device is located or the carrier in which the terminal transmits the measurement signal, i indicating the time unit in which the measurement signal is transmitted, P CMAX,c(i) Represents the maximum transmission power, M, of the first terminal device for transmitting the measurement signalSRS,c(i) The number of resource blocks of the first terminal device configured by the first network device, where n is y, y is a preset value, y is used to indicate that the measurement signal is used for inter-terminal interference measurement, and P isO_SRS,c(n) a second value representing the desired power; alpha (alpha) ("alpha")c(j) Watch (A)Road loss compensation factor, PLcRepresenting a value of downlink path loss, f, between the first network device and the first terminal devicec(i) Indicating the power adjustment value.
Optionally, as another embodiment, the power parameter comprises a path loss compensation factor of the measurement signal,
the processor is specifically configured to determine the second power according to any one of the following equations:
PSRS,c(i)=min{PCMAX,c(i),PSRS_OFFSET,c(m′)+10log10(MSRS,c)+PO_PUSCH,c(j)+αSRS,c(k)·PLc+fc(i)}
PSRS,c(i)=min{PCMAX,c(i),10log10(MSRS,c)+PO_SRS,c(n′)+αSRS,c(k)·PLc+fc(i)}
wherein, PSRS,c(i) Indicating the second power, c indicating the cell in which the first terminal device is located or the carrier in which the terminal transmits the measurement signal, i indicating the time unit in which the measurement signal is transmitted, PCMAX,c(i) Representing the maximum transmission power, P, of the first terminal device for transmitting the measurement signalSRS_OFFSET,c(m ') represents the power offset of the measurement signal, m' takes the value 0 or 1, PO_SRS,c(n ') represents the desired power of the measurement signal, n' takes the value 0 or 1, MSRS,c(i) Is the number of resource blocks, P, of the first terminal device configured by the first network device O_UE_PUSCH,c(j) Is the expected received power of the measurement signal when the uplink channel configured by the first network device is measured, k is z, z is a preset value, z is used to indicate that the measurement signal is used for inter-terminal interference measurement, αSRS,c(k) A second value, PL, representing the path loss compensation factorcRepresenting a value of downlink path loss, f, between the first network device and the first terminal devicec(i) Indicating the power adjustment value.
Optionally, as another embodiment, the transceiver is specifically configured to receive the power configuration information sent by the first network device through radio resource control RRC signaling, a media access control layer control element MAC-CE, downlink control information DCI, or a broadcast message.
It should be understood that the first terminal device 300 shown in fig. 3 is capable of implementing various processes involving the first terminal device in the method embodiment of fig. 2. The operations and/or functions of the respective modules in the first terminal device 300 are respectively for implementing the corresponding flows in the above-described method embodiments. Specifically, reference may be made to the description of the above method embodiments, and the detailed description is appropriately omitted herein to avoid redundancy.
Fig. 4 shows a schematic block diagram of a first network device 400 according to an embodiment of the application, in particular, as shown in fig. 4, the first network device 400 comprises: a processor 410 and a transceiver 420.
Optionally, the first network device may further include a memory 330 and other components. The memory is primarily used for storing software programs and data. The processor 410 may read the software program in the memory, interpret and execute the instructions of the software program, and process the data of the software program.
Alternatively, the transceiver 420 may be referred to as a Remote Radio Unit (RRU), a transceiver unit, a transceiver, or a transceiver circuit, etc. The transceiver 420 may include at least one antenna and a radio frequency unit, and the transceiver 420 may be used for transceiving of radio frequency signals and conversion of the radio frequency signals to baseband signals.
Optionally, the apparatus may include a baseband unit (BBU) including the processor 410. The baseband unit may be used for baseband processing, such as channel coding, multiplexing, modulation, spreading, etc., and for controlling network devices. The transceiver 420 and the baseband unit may be physically disposed together or may be physically disposed separately, i.e., distributed network devices.
In an example, the baseband unit may be formed by one or more boards, and the boards may jointly support a radio access network of a single access system, or may respectively support radio access networks of different access systems.
In one example, the baseband unit may be reconfigured as the aforementioned DU and CU functional entities.
The baseband unit includes a processor 410. The processor 410 may be configured to control the first network device to perform the respective operations in the foregoing method embodiments. Optionally, the baseband unit may further include a memory to store necessary instructions and data.
Specifically, the processor is configured to generate power configuration information, where the power configuration information is used to configure a power parameter, where the power parameter corresponding to a first power and a second power is configured independently, the first power is a power at which a first terminal device determines to transmit a measurement signal for uplink channel measurement, and the second power is a power at which the first terminal device determines to transmit the measurement signal for inter-terminal device interference measurement;
the transceiver is configured to transmit power configuration information to the first terminal device.
Therefore, in the embodiment of the present application, the power parameters for uplink channel measurement and inter-terminal interference measurement are independently configured by the network device, so that the terminal device determines the power for sending the measurement signal for inter-terminal interference measurement according to the power parameter for inter-terminal interference measurement configured by the network device when performing inter-terminal interference measurement. The problem that the same power (namely the power of the measurement signal during uplink channel measurement) is used for sending the measurement signal in both channel measurement and inter-terminal interference measurement in the prior art is solved, and accurate inter-terminal interference measurement can be realized.
Optionally, as another embodiment, the transceiver is further configured to send first indication information to the first terminal device, where the first indication information is used to indicate that a measurement signal sent by the first terminal device is used for inter-terminal interference measurement.
Optionally, as another embodiment, the power parameter includes at least one of the following parameters:
a power offset of the measurement signal, a desired power of the measurement signal, and a path loss compensation factor of the measurement signal.
Optionally, as another embodiment, the transceiver is specifically configured to send the power configuration information to the first terminal device through radio resource control RRC signaling, a media access control layer control element MAC-CE, downlink control information DCI, or a broadcast message.
It should be appreciated that the first network device 400 shown in fig. 4 is capable of implementing the various processes involving the first network device in the method embodiment of fig. 2. The operations and/or functions of the respective modules in the first network device 400 are respectively to implement the corresponding flows in the above-described method embodiments. Specifically, reference may be made to the description of the above method embodiments, and the detailed description is appropriately omitted herein to avoid redundancy.
Fig. 5 shows a schematic block diagram of a second terminal device 500 according to an embodiment of the application, specifically, as shown in fig. 5, the second terminal device 500 includes: a processor 510 and a transceiver 520.
Optionally, the second terminal device may further include a memory 530 and the like. The memory is used primarily for storing software programs and data. The processor 510 can read the software program in the memory, interpret and execute the instructions of the software program, and process the data of the software program.
Optionally, the transceiver 520 may include a control circuit and an antenna, wherein the control circuit may be used for conversion of baseband signals and radio frequency signals and processing of radio frequency signals, and the antenna may be used for transceiving radio frequency signals.
The processor 510 may be configured to process the communication protocol and the communication data, and control the entire second terminal device, execute a software program, and process data of the software program, for example, to support the second terminal device to perform corresponding operations in the foregoing method embodiments.
Specifically, the processor is configured to determine a received power of a measurement signal transmitted by the first terminal device;
determining the interference power of the first terminal equipment to the second terminal equipment according to the received power and the compensation power of the measurement signal;
in an instance in which it is determined that the interference power is greater than an interference power threshold, the transceiver transmits first interference indication information to the second network device, the first interference indication information indicating the interference power.
Therefore, in the embodiment of the present application, the terminal device does not report the interference condition when the interference is small, and only when the interference is large (the interference power is greater than the interference power threshold), the terminal device sends the interference indication information indicating the interference power to the network device, so that the signaling overhead can be reduced.
Optionally, as another embodiment, the transceiver is further configured to receive power compensation indication information sent by the second network device before the processor determines the interference power of the first terminal device to the second terminal device according to the received power and the compensation power of the measurement signal, where the power compensation indication information indicates the compensation power.
It should be understood that the second terminal device 500 shown in fig. 5 is capable of implementing various processes involving the second terminal device in the method embodiment of fig. 2. The operations and/or functions of the modules in the second terminal device 500 are respectively to implement the corresponding flows in the above-described method embodiments. Specifically, reference may be made to the description of the above method embodiments, and the detailed description is appropriately omitted herein to avoid redundancy.
Fig. 6 shows a schematic block diagram of a second network device 600 according to an embodiment of the present application, and specifically, as shown in fig. 6, the second network device 600 includes: a processor 610 and a transceiver 620.
Optionally, the second network device may further include a memory 630 and the like. The memory is used primarily for storing software programs and data. The processor 610 may read the software program in the memory, interpret and execute the instructions of the software program, and process the data of the software program.
Alternatively, the transceiver 620 may be referred to as a Remote Radio Unit (RRU), a transceiver unit, a transceiver, or a transceiver circuit, etc. The transceiver 620 may include at least one antenna and a radio frequency unit, and the transceiver 620 may be used for transceiving of radio frequency signals and conversion of the radio frequency signals to baseband signals.
Optionally, the apparatus may include a baseband unit (BBU) including the processor 610. The baseband unit may be used for baseband processing, such as channel coding, multiplexing, modulation, spreading, etc., and for controlling network devices. The transceiver 620 and the baseband unit may be physically located together or may be physically separated, i.e., distributed network devices.
In an example, the baseband unit may be formed by one or more boards, and the boards may jointly support a radio access network of a single access system, or may respectively support radio access networks of different access systems.
In one example, the baseband unit may be reconfigured as the aforementioned DU and CU functional entities.
The baseband unit includes a processor 610. The processor 610 may be configured to control the second network device to perform the respective operations in the foregoing method embodiments. Optionally, the baseband unit may further include a memory to store necessary instructions and data.
Specifically, the processor is configured to control the transceiver to send power compensation indication information to the second terminal device, where the power compensation indication information indicates a compensation power of the measurement signal;
and receiving first interference indication information sent by the second terminal equipment, wherein the first interference indication information indicates the interference power of the first terminal equipment to the second terminal equipment, and the interference power is determined by the second terminal equipment according to the received power and the compensation power of the measurement signal.
Alternatively, the transceiver is configured to receive second interference power indication information transmitted by a second terminal device, the second interference power indication information being used to indicate a received power of the second terminal device for receiving the measurement signal transmitted by the first terminal device,
the processor is configured to determine an interference power of the first terminal device with respect to the second terminal device based on the received power and the compensation power of the measurement signal.
Therefore, in the embodiment of the present application, the power parameters for uplink channel measurement and inter-terminal interference measurement are independently configured by the network device, so that the terminal device determines the power for sending the measurement signal for inter-terminal interference measurement according to the power parameter for inter-terminal interference measurement configured by the network device when performing inter-terminal interference measurement. The problem that the same power (namely the power of the measurement signal during uplink channel measurement) is used for sending the measurement signal in channel measurement and inter-terminal interference measurement in the prior art is solved, so that accurate inter-terminal interference measurement can be realized, and further network equipment can perform regulation and control processing according to the inter-terminal interference measurement result, so that inter-terminal interference is reduced, and network performance is improved.
It should be appreciated that the second network device 600 shown in fig. 6 is capable of implementing various processes involving the second network device in the method embodiment of fig. 2. The operations and/or functions of the modules in the second network device 600 are respectively to implement the corresponding flows in the above-described method embodiments. Specifically, reference may be made to the description of the above method embodiments, and the detailed description is appropriately omitted herein to avoid redundancy.
It should be understood that the processor in the embodiments of the present invention may be implemented by a processing unit or a chip, and alternatively, the processing unit may be formed by a plurality of units in the implementation process.
It should be understood that the transceiver in the embodiments of the present invention may be implemented by a transceiver unit or a chip, and alternatively, the transceiver may be constituted by a transmitter or a receiver, or by a transmitting unit or a receiving unit.
It should be understood that the processor and the transceiver in the embodiments of the present invention may be implemented by a chip.
The embodiment of the application also provides a processing device, which comprises a processor and an interface; the processor is configured to perform the method for measuring a signal in any of the above method embodiments.
It should be understood that the processing device may be a chip, the processor may be implemented by hardware or software, and when implemented by hardware, the processor may be a logic circuit, an integrated circuit, or the like; when implemented in software, the processor may be a general-purpose processor implemented by reading software code stored in a memory, which may be integrated in the processor, located external to the processor, or stand-alone.
For example, the processing Device may be a Field-Programmable Gate Array (FPGA), an Application-Specific Integrated Circuit (ASIC), a System on Chip (SoC), a Central Processing Unit (CPU), a Network Processor (NP), a Digital Signal processing Circuit (DSP), a Microcontroller (MCU), a Programmable Logic Device (PLD), or other Integrated chips.
The embodiment of the invention also provides communication equipment which comprises a processing unit and a transmitting-receiving unit. The processing unit and the transceiver unit may be implemented in software or hardware. In case of a hardware implementation, the processing unit may be the processor described above and the transceiving unit may be the transceiver described above.
It should be understood that in various embodiments of the present application described above, the processor may be a CPU, and the processor may also be other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), application specific programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory may include both read-only memory and random access memory, and provides instructions and data to the processor. The portion of memory may also include non-volatile random access memory.
In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The steps of a method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in a processor. The software modules may be located in ram, flash, rom, prom, or eprom, registers, etc. as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor. To avoid repetition, it is not described in detail here.
It should be noted that the processor in the embodiments of the present invention may be an integrated circuit chip having signal processing capability. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The processor may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, or discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.
It will be appreciated that the memory in embodiments of the invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM, enhanced SDRAM, SLDRAM, Synchronous Link DRAM (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.
Embodiments of the present application further provide a computer-readable medium, on which a computer program is stored, where the computer program is executed by a computer to implement the method for signal measurement in any of the method embodiments described above.
The embodiment of the present application further provides a computer program product, and when executed by a computer, the computer program product implements the method for signal measurement in any one of the method embodiments described above.
The embodiment of the application further provides a system, which comprises the first terminal device, the first network device, the second terminal device and the second network device.
In the communication system, the first network device independently configures power parameters for uplink channel measurement and inter-terminal interference measurement, and when performing inter-terminal interference measurement, the first terminal device determines power for transmitting a measurement signal for inter-terminal interference measurement according to the power parameters for inter-terminal interference measurement configured by the first network device. The problem that the same power (namely the power of the measurement signal during uplink channel measurement) is used for sending the measurement signal in both channel measurement and inter-terminal interference measurement in the prior art is solved, so that the second terminal equipment can realize accurate inter-terminal interference measurement. And the second network device can perform regulation and control according to the interference situation between the two terminals.
In the above embodiments, all or part of the implementation may be realized by software, hardware, firmware, or any combination thereof. When implemented in software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a Digital Video Disk (DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), among others.
As used in this specification, the terms "component," "module," "system," and the like are intended to refer to a computer-related entity, either hardware, firmware, a combination of hardware and software, or software in execution. For example, a component may be, but is not limited to being, a process running on a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of illustration, both an application running on a computing device and the computing device can be a component. One or more components can reside within a process and/or thread of execution and a component can be localized on one computer and/or distributed between 2 or more computers. In addition, these components can execute from various computer readable media having various data structures stored thereon. The components may communicate by way of local and/or remote processes such as in accordance with a signal having one or more data packets (e.g., data from two components interacting with another component in a local system, distributed system, and/or across a network such as the internet with other systems by way of the signal).
It should also be understood that reference herein to first, second, third, fourth, and various numerical designations is made only for ease of description and is not intended to limit the scope of the embodiments of the present application.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in various embodiments of the present invention, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
Additionally, the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should be understood that in the embodiment of the present invention, "B corresponding to a" means that B is associated with a, from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.
Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and that the components and steps of the examples have been described in a functional general in the foregoing description for the purpose of illustrating clearly the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of a unit is merely a logical division, and an actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may also be an electric, mechanical or other form of connection.
Units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment of the present invention.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
From the above description of the embodiments, it is clear to those skilled in the art that the present invention can be implemented by hardware, firmware, or a combination thereof. When implemented in software, the functions described above may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a computer. Taking this as an example but not limiting: computer-readable media can include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. Furthermore, the method is simple. Any connection is properly termed a computer-readable medium. For example, if software is transmitted from a website, a server, or other remote source using a coaxial cable, a fiber optic cable, a twisted pair, a Digital Subscriber Line (DSL), or a wireless technology such as infrared, radio, and microwave, the coaxial cable, the fiber optic cable, the twisted pair, the DSL, or the wireless technology such as infrared, radio, and microwave are included in the fixation of the medium. Disk and disc, as used herein, includes Compact Disc (CD), laser disc, optical disc, Digital Versatile Disc (DVD), floppy Disk and blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above should also be included within the scope of computer-readable media.
In short, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (22)

1. A method of signal measurement, comprising:
a first terminal device receives power configuration information sent by a first network device, wherein the power configuration information is used for configuring a first value and a second value of a power parameter, the first value is used for determining first power, the second value is used for determining second power, no association exists between the first value and the second value, the first power is the power of the first terminal device for determining and sending a measurement signal used for uplink channel measurement, and the second power is the power of the first terminal device for determining and sending the measurement signal used for inter-terminal device interference measurement;
the first terminal device receives scene indication information sent by the first network device, wherein the scene indication information is used for indicating that a measurement signal sent by the first terminal device is used for inter-terminal interference measurement;
The first terminal equipment determines second power of the measuring signal for sending interference measurement between the terminal equipment according to the power parameter;
and the first terminal equipment uses the second power to send the measurement signal for measuring the interference between the terminal equipments.
2. The method of claim 1, wherein the first terminal device determines a second power for transmitting the measurement signal for inter-terminal device interference measurement according to the power parameter, comprising:
the first terminal device selects a second value of the power parameter from the values of the power parameter configured by the first network device according to the scene indication information, wherein the values of the power parameter configured by the first network device include a first value of the power parameter and the second value of the power parameter, the first value is used for the first terminal device to determine the first power, and the second value is used for the first terminal device to determine the second power;
and the first terminal equipment determines second power of the measurement signal for sending the interference measurement between the terminal equipment according to the second value of the power parameter.
3. The method of claim 2,
the power parameter comprises at least one of:
a power offset of the measurement signal, a desired power of the measurement signal, and a path loss compensation factor of the measurement signal.
4. The method of claim 3, wherein the power parameter comprises a power offset of the measurement signal,
the first terminal device determines, according to the second value of the power parameter, a second power of the measurement signal for inter-terminal device interference measurement, including determining the second power according to the following formula:
PSRS,c(i)=min{PCMAX,c(i),PSRS_OFFSET,c(m)+10log10(MSRS,c)+PO_PUSCH,c(j)+αc(j)·PLc+fc(i)}
wherein, PSRS,c(i) Representing the second power, c representing the cell in which the first terminal device is located or the carrier in which the terminal transmits the measurement signal, i representing the time unit in which the measurement signal is transmitted, PCMAX,c(i) Indicating the maximum transmission power of the first terminal device for transmitting the measurement signal, where m is x, x is a preset value, x is used to indicate that the measurement signal is used for inter-terminal interference measurement, and P isSRS_OFFSET,c(m) represents a second value of the power offset; mSRS,cIs the number of resource blocks, P, of the first terminal device configured by the first network device O_UE_PUSCH,c(j) Is the expected received power, alpha, of the measurement signal during the uplink channel measurement configured by the first network devicec(j) Representing the path loss compensation factor, PLcRepresenting a downlink path loss value, f, between the first network device and the first terminal devicec(i) Indicating the power adjustment value.
5. The method of claim 3, wherein the power parameter comprises a desired power of the measurement signal,
the first terminal device determines, according to the second value of the power parameter, a second power of the measurement signal for inter-terminal device interference measurement, including determining the second power according to the following formula:
PSRS,c(i)=min{PCMAX,c(i),10log10(MSRS,c)+PO_SRS,c(n)+αSRS,c·PLc+fc(i)}
wherein, PSRS,c(i) Representing the second power, c representing the cell in which the first terminal device is located or the carrier in which the terminal transmits the measurement signal, i representing the time unit in which the measurement signal is transmitted, PCMAX,c(i) Represents the maximum transmission power, M, of the first terminal device for transmitting the measurement signalSRS,cThe number of resource blocks of the first terminal device configured by the first network device, where n is y, y is a preset value, y is used to indicate that the measurement signal is used for inter-terminal interference measurement, and P isO_SRS,c(n) represents a second value of the desired power; alpha is alpha SRS,cRepresenting the path loss compensation factor, PLcRepresenting a value of downlink path loss, f, between the first network device and the first terminal devicec(i) Indicating the power adjustment value.
6. The method of claim 3, wherein the power parameter comprises a path loss compensation factor for the measurement signal,
the first terminal device determines, according to the second value of the power parameter, a second power of the measurement signal for inter-terminal device interference measurement, including determining the second power according to any one of the following formulas:
PSRS,c(i)=min{PCMAX,c(i),PSRS_OFFSET,c(m′)+10log10(MSRS,c)+PO_PUSCH,c(j)+αSRS,c(k)·PLc+fc(i)}
PSRS,c(i)=min{PCMAX,c(i),10log10(MSRS,c)+PO_SRS,c(n′)+αSRS,c(k)·PLc+fc(i)}
wherein, PSRS,c(i) Representing the second power, c representing the cell in which the first terminal device is located or the carrier in which the terminal transmits the measurement signal, i representing the time unit in which the measurement signal is transmitted, PCMAX,c(i) Representing the maximum transmission power, P, of said first terminal device for transmitting said measurement signalSRS_OFFSET,c(m ') represents the power offset of the measurement signal, m' takes the value 0 or 1, PO_SRS,c(n ') represents the desired power of the measurement signal, n' takes the value 0 or 1, MSRS,cIs the number of resource blocks, P, of the first terminal device configured by the first network deviceO_UE_PUSCH,c(j) When the uplink channel configured by the first network device is measured, the expected received power of the measurement signal is k ═ z, z is a preset value, z is used for indicating that the measurement signal is used for inter-terminal interference measurement, and α is SRS,c(k) A second value, PL, representing said path loss compensation factorcRepresenting a value of downlink path loss, f, between the first network device and the first terminal devicec(i) Indicating the power adjustment value.
7. The method according to any one of claims 1 to 6, wherein the receiving, by the first terminal device, the power configuration information sent by the first network device comprises:
and the first terminal equipment receives the power configuration information sent by the first network equipment through Radio Resource Control (RRC) signaling, a media access control (MAC-CE) control element, Downlink Control Information (DCI) or broadcast messages.
8. A method of signal measurement, comprising:
a first network device generates power configuration information, wherein the power configuration information is used for configuring a first value and a second value of a power parameter, the first value is used for determining a first power, the second value is used for determining a second power, the first value and the second value are not associated, the first power is the power for a first terminal device to determine to send a measurement signal for uplink channel measurement, and the second power is the power for the first terminal device to determine to send the measurement signal for inter-terminal device interference measurement;
The first network equipment sends power configuration information to the first terminal equipment;
the first network device sends scene indication information to the first terminal device, where the scene indication information is used to indicate that a measurement signal sent by the first terminal device is used for inter-terminal interference measurement.
9. The method of claim 8,
the power parameter comprises at least one of:
a power offset of the measurement signal, a desired power of the measurement signal, and a path loss compensation factor of the measurement signal.
10. The method according to claim 8 or 9, wherein the first network device sends power configuration information to the first terminal device, comprising:
and the first network equipment sends the power configuration information to the first terminal equipment through Radio Resource Control (RRC) signaling, a media access control (MAC-CE) control element, Downlink Control Information (DCI) or broadcast messages.
11. A first terminal device, comprising:
a processor and a transceiver, wherein the transceiver is capable of transmitting,
the transceiver is configured to receive power configuration information sent by a first network device, where the power configuration information is used to configure a first value and a second value of a power parameter, the first value is used to determine a first power, the second value is used to determine a second power, there is no association between the first value and the second value, the first power is a power at which a first terminal device determines to send a measurement signal for uplink channel measurement, and the second power is a power at which the first terminal device determines to send the measurement signal for inter-terminal device interference measurement;
The transceiver is configured to receive scene indication information sent by a first network device, where the scene indication information is used to indicate that a measurement signal sent by the first terminal device is used for inter-terminal interference measurement;
the processor is used for determining second power of the measurement signal for sending interference measurement between terminal equipment according to the power parameter;
the transceiver also transmits the measurement signal for inter-terminal equipment interference measurement using the second power.
12. The first terminal device of claim 11,
the processor is further configured to select a second value of the power parameter from values of the power parameter configured by the first network device according to the scene indication information, where the values of the power parameter configured by the first network device include a first value of the power parameter and the second value of the power parameter, the first value is used by the first terminal device to determine the first power, and the second value is used by the first terminal device to determine the second power;
and determining a second power of the measurement signal for sending the interference measurement between the terminal devices according to the second value of the power parameter.
13. The first terminal device of claim 12,
the power parameter comprises at least one of:
a power offset of the measurement signal, a desired power of the measurement signal, and a path loss compensation factor of the measurement signal.
14. The first terminal device of claim 13, wherein the power parameter comprises a power offset of the measurement signal,
the processor is specifically configured to determine the second power according to the following equation:
PSRS,c(i)=min{PCMAX,c(i),PSRS_OFFSET,c(m)+10log10(MSRS,c)+PO_PUSCH,c(j)+αc(j)·PLc+fc(i)}
wherein, PSRS,c(i) Representing the second power, c representing the cell in which the first terminal device is located or the carrier in which the terminal transmits the measurement signal, i representing the time unit in which the measurement signal is transmitted, PCMAX,c(i) The maximum transmission power of the first terminal equipment for transmitting the measurement signal is represented, m is x, x is a preset value, x is used for representing that the measurement signal is used for inter-terminal interference measurement, and P isSRS_OFFSET,c(m) represents a second value of the power offset; mSRS,cIs the number of resource blocks, P, of the first terminal device configured by the first network deviceO_UE_PUSCH,c(j) Is the expected received power, alpha, of the measurement signal during the uplink channel measurement configured by the first network device c(j) Representing the path loss compensation factor, PLcRepresenting a value of downlink path loss, f, between the first network device and the first terminal devicec(i) Indicating the power adjustment value.
15. The first terminal device of claim 13, wherein the power parameter comprises a desired power of the measurement signal,
the processor is specifically configured to determine the second power according to the following equation:
PSRS,c(i)=min{PCMAX,c(i),10log10(MSRS,c)+PO_SRS,c(n)+αSRS,c·PLc+fc(i)}
wherein, PSRS,c(i) Representing the second power, c represents the cell in which the first terminal equipment is located or the carrier wave of the measurement signal sent by the terminalI denotes the time unit in which the measurement signal is transmitted, PCMAX,c(i) Represents the maximum transmission power, M, of the first terminal device for transmitting the measurement signalSRS,cThe number of resource blocks of the first terminal device configured by the first network device, where n is y, y is a preset value, y is used to indicate that the measurement signal is used for inter-terminal interference measurement, and P isO_SRS,c(n) represents a second value of the desired power; alpha is alphaSRS,cRepresenting the path loss compensation factor, PLcRepresenting a value of downlink path loss, f, between the first network device and the first terminal devicec(i) Indicating the power adjustment value.
16. The first terminal device of claim 13, wherein the power parameter comprises a path loss compensation factor for the measurement signal,
The processor is specifically configured to determine the second power according to any one of the following equations:
PSRS,c(i)=min{PCMAX,c(i),PSRS_OFFSET,c(m′)+10log10(MSRS,c)+PO_PUSCH,c(j)+αSRS,c(k)·PLc+fc(i)}
PSRS,c(i)=min{PCMAX,c(i),10log10(MSRS,c)+PO_SRS,c(n′)+αSRS,c(k)·PLc+fc(i)}
wherein, PSRS,c(i) Representing the second power, c representing the cell in which the first terminal device is located or the carrier in which the terminal transmits the measurement signal, i representing the time unit in which the measurement signal is transmitted, PCMAX,c(i) Representing the maximum transmission power, P, of said first terminal device for transmitting said measurement signalSRS_OFFSET,c(m ') represents the power offset of the measurement signal, m' takes the value 0 or 1, PO_SRS,c(n ') represents the desired power of the measurement signal, n' takes the value 0 or 1, MSRS,cIs the number of resource blocks, P, of the first terminal device configured by the first network deviceO_UE_PUSCH,c(j) When the uplink channel configured by the first network equipment is measuredThe expected received power of the measurement signal, k is z, z is a preset value, z is used for indicating that the measurement signal is used for inter-terminal interference measurement, and alphaSRS,c(k) A second value, PL, representing said path loss compensation factorcRepresenting a downlink path loss value, f, between the first network device and the first terminal devicec(i) Indicating the power adjustment value.
17. The first terminal device according to any of claims 11 to 16, wherein the transceiver is specifically configured to receive the power configuration information transmitted by the first network device through radio resource control, RRC, signaling, media access control, layer control element, MAC-CE, downlink control information, DCI, or a broadcast message.
18. A first network device, comprising:
a processor and a transceiver, wherein the transceiver is capable of transmitting,
the processor is configured to generate power configuration information, where the power configuration information is used to configure a first value and a second value of a power parameter, the first value is used to determine a first power, the second value is used to determine a second power, there is no association between the first value and the second value, the first power is a power at which a first terminal device determines to send a measurement signal for uplink channel measurement, and the second power is a power at which the first terminal device determines to send the measurement signal for inter-terminal device interference measurement;
the transceiver is configured to send power configuration information to the first terminal device;
the transceiver is configured to send scene indication information to the first terminal device, where the scene indication information is used to indicate that a measurement signal sent by the first terminal device is used for inter-terminal interference measurement.
19. The first network device of claim 18,
the power parameter comprises at least one of:
a power offset of the measurement signal, a desired power of the measurement signal, and a path loss compensation factor of the measurement signal.
20. The first network device according to claim 18 or 19, wherein the transceiver is specifically configured to transmit the power configuration information to the first terminal device via radio resource control, RRC, signaling, media access control, layer control element, MAC-CE, downlink control information, DCI, or a broadcast message.
21. A computer-readable storage medium storing instructions that, when executed on a computer, cause the computer to perform the method of any one of claims 1-7.
22. A computer-readable storage medium storing instructions that, when executed on a computer, cause the computer to perform the method of any one of claims 8-10.
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