CN104798407B - A kind of method and user equipment of mobile communication - Google Patents

A kind of method and user equipment of mobile communication Download PDF

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Publication number
CN104798407B
CN104798407B CN201280077059.XA CN201280077059A CN104798407B CN 104798407 B CN104798407 B CN 104798407B CN 201280077059 A CN201280077059 A CN 201280077059A CN 104798407 B CN104798407 B CN 104798407B
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pusch
power
base station
compensation value
mcs
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CN104798407A (en
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陈宝军
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XFusion Digital Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/38—TPC being performed in particular situations
    • H04W52/50—TPC being performed in particular situations at the moment of starting communication in a multiple access environment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/146—Uplink power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/26—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service]
    • H04W52/262—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service] taking into account adaptive modulation and coding [AMC] scheme
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/32—TPC of broadcast or control channels
    • H04W52/325—Power control of control or pilot channels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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

Abstract

The embodiment of the present invention discloses the method and user equipment of a kind of mobile communication, so that the transmission power of the first biography frame when UE is communicated on PUSCH with base station is accurate as far as possible, even if also can be improved the transmission power of UE when the MCS of UE selection is smaller, reducing the bit error rate on PUSCH；Even if can also reduce the transmission power of UE in the MCS higher of UE selection, reduce the waste of power and the interference to homogeneous-frequency adjacent-domain.This method comprises: physically the shared channel PUSCH of row is upper when being communicated with base station by UE, the related power offset of the first modulation coding scheme MCS of biography frame of setting is the first offset；The transmission power of first biography frame of the UE when the PUSCH of serving cell is communicated is obtained according to first offset；With the transmission power, data and/or signaling are transmitted to the base station by the first biography frame of the PUSCH.The present invention is suitable for the communications field.

Description

Mobile communication method and user equipment
Technical Field
The present invention relates to the field of communications, and in particular, to a mobile communication method and a user equipment.
Background
In an Uplink of an lte (long Term evolution) system, after a ue (user equipment) accesses a network side, it needs to determine a transmission power value of a physical layer control channel pucch (physical Uplink control channel), a physical layer Shared channel pusch (physical Uplink Shared channel), and a measurement Reference Signal (Sounding Reference Signal), so that the power of a Signal reaching a base station is kept within a range suitable for reception.
In the prior art, after the UE accesses the network side, there are two ways for the base station to select the modulation and coding scheme MCS for the UE: one is that the base station selects a certain fixed MCS for all served UEs; the other is that the base station adaptively selects an MCS for each served UE.
When the UE determines the transmitting power of an initial transmission frame of the communication between the PUSCH and the base station, the base station selects a certain fixed MCS for all the served UEs, and in order to enable the signal quality of all the served UEs on the initial transmission frame to meet the requirement of the base station for the MCS demodulation, the base station selects a lower MCS, so that the transmitting power of the UE is lower, and the error rate on the PUSCH is higher.
When the UE determines the transmitting power of an initial frame of communication between the PUSCH and the base station, aiming at the mode that the base station adaptively selects the MCS for each service UE, under the condition that the channel quality is poor enough, the base station selects a lower MCS, so that the transmitting power of the UE is low, and the error rate on the PUSCH is high; when the channel quality is good enough, the base station selects a higher MCS, so that the transmission power of the UE is higher, thereby causing power waste and causing stronger interference to the neighboring cells of the same frequency.
Disclosure of Invention
The embodiment of the invention provides a mobile communication method and user equipment, which can ensure that the transmitting power of an initial transmission frame when UE communicates with a base station on a PUSCH is as accurate as possible, and can improve the transmitting power of the UE even when the MCS selected by the UE is smaller, thereby reducing the error rate on the PUSCH; even when the MCS selected by the UE is higher, the transmitting power of the UE can be reduced, so that the waste of power and the interference to the adjacent regions with the same frequency are reduced.
In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:
in a first aspect, a method for mobile communication is provided, the method including:
when User Equipment (UE) communicates with a base station on a Physical Uplink Shared Channel (PUSCH), setting a relevant power compensation value of a Modulation and Coding Scheme (MCS) of an initial transmission frame as a first compensation value, so that the transmitting power of the initial transmission frame of the UE is less influenced by the MCS when the PUSCH communicates;
acquiring the transmitting power of an initial transmission frame of the UE when the UE communicates on the PUSCH of the serving cell according to the first compensation value;
and transmitting data and/or signaling to the base station through the initial transmission frame of the PUSCH by using the transmission power.
In a first possible implementation form, according to the first aspect, the first compensation value is zero.
In a second possible implementation manner, according to the first aspect, the first compensation value is:
wherein, the BPRE represents the number of bits transmitted on each resource symbol; BPREinitialRepresenting the number of bits transmitted on each resource symbol on an initial transmission frame when the UE communicates with the base station on the PUSCH; when control signaling is transmitted over the PUSCH and no data is transmitted on the PUSCH,is equal toWherein,a power offset value representing control signaling versus data, and, in other cases,equal to 1; k is a radical ofsRepresenting a cell common parameter.
In a third possible implementation manner, according to the second possible implementation manner, when the control signaling is transmitted through the PUSCH and no data is transmitted on the PUSCH, the first compensation value is:when there is data to be transmitted on the PUSCH, the first compensation value is zero.
In a fourth possible implementation manner, according to the second possible implementation manner, after transmitting data and/or signaling to the base station through the initial frame of the PUSCH at the transmission power, the method further includes:
when the UE communicates with the base station on the PUSCH, setting the MCS related power compensation value of the subframe except the initial transmission frame as the first compensation value;
acquiring the transmitting power of the sub-frames except for the initial transmission frame when the UE communicates on the PUSCH of the serving cell according to the first compensation value;
and transmitting data and/or signaling to the base station through the subframes of the PUSCH except the initial transmission frame at the transmission power.
In a fifth possible implementation manner, according to a fourth possible implementation manner, the obtaining, according to the first compensation value, transmission power of a primary transmission frame and a subframe other than the primary transmission frame when the UE performs communication on a PUSCH specifically includes:
when the PUSCH is not transmitted simultaneously with the PUCCH, the transmission power of the No. i subframe when the UE communicates on the PUSCH is as follows:
wherein c represents a serving cell; pCMAX，c(i)Represents a maximum transmit power value for the UE; mPUSCH，c(i)Represents a transmission bandwidth, i.e., the number of resources, allocated to the UE by the base station; pO_PUSCH，c(j)Represents a target power value, i.e., a power value at which the base station desires to receive a signal; PLcIndicating the downstream path loss αc(j) Representing a downlink path loss compensation factor; f. ofc(i) Indicating a power adjustment state; delta'TF，c(i) A power compensation value representing a modulation coding scheme;
and/or
When the PUSCH and the PUCCH are simultaneously transmitted, the transmission power of the No. i subframe when the UE communicates on the PUSCH is as follows:
wherein,represents a maximum transmit power value for the UE;represents a transmission power value of the PUCCH; mPUSCH，c(i)、PO_PUSCH，c(j)、PLc、αc(j)、fc(i) And delta'TF，c(i) As defined when PUSCH is not transmitted simultaneously with PUCCH.
In a second aspect, a user equipment is provided, which includes: the device comprises a setting unit, an acquisition unit and a sending unit;
the setting unit is used for setting a relevant power compensation value of a Modulation and Coding Scheme (MCS) of an initial transmission frame as a first compensation value when User Equipment (UE) communicates with a base station on a Physical Uplink Shared Channel (PUSCH), so that the transmitting power of the initial transmission frame of the UE is less influenced by the MCS when the PUSCH communicates;
the obtaining unit is configured to obtain, according to the first compensation value, transmission power of an initial transmission frame when the UE communicates on a PUSCH of a serving cell;
and the sending unit is configured to transmit data and/or signaling to the base station through the initial frame of the PUSCH at the transmission power.
In a first possible implementation form, according to the second aspect, the first compensation value is zero.
In a second possible implementation manner, according to the second aspect, the first compensation value is:
wherein, the BPRE represents the number of bits transmitted on each resource symbol; BPREinitialIndicating that the UE transmits on each resource symbol on the initial transmission frame when communicating with the base station on the PUSCHThe number of bits of (d); when control signaling is transmitted over the PUSCH and no data is transmitted on the PUSCH,is equal toWherein,a power offset value representing control signaling versus data, and, in other cases,equal to 1; k is a radical ofsRepresenting a cell common parameter.
In a third possible implementation manner, according to the second possible implementation manner, when the control signaling is transmitted through the PUSCH and no data is transmitted on the PUSCH, the first compensation value is:when there is data to be transmitted on the PUSCH, the first compensation value is zero.
In a fourth possible implementation, according to the second possible implementation,
the setting unit is further configured to set, when the UE communicates with the base station on the PUSCH, a power compensation value related to the MCS of the subframe except for the initial transmission frame as the first compensation value;
the obtaining unit is further configured to obtain, according to the first compensation value, transmission power of a subframe of the UE except for an initial transmission frame when the UE communicates on a PUSCH of a serving cell;
the sending unit is further configured to transmit data and/or signaling to the base station through the subframe of the PUSCH except for the initial transmission frame with the transmission power.
In a fifth possible implementation manner, according to a fourth possible implementation manner, the acquiring, by the acquiring unit, according to the first compensation value, acquiring the transmission power of the initial transmission frame and the subframe except the initial transmission frame when the UE performs PUSCH communication specifically includes:
when the PUSCH is not transmitted simultaneously with the PUCCH, the transmission power of the No. i subframe when the UE communicates on the PUSCH is as follows:
wherein c represents a serving cell; pCMAX，c(i)Represents a maximum transmit power value for the UE; mPUSCH，c(i)Represents a transmission bandwidth, i.e., the number of resources, allocated to the UE by the base station; pO_PUSCH，c(j)Represents a target power value, i.e., a power value at which the base station desires to receive a signal; PLcIndicating the downstream path loss αc(j) Representing a downlink path loss compensation factor; f. ofc(i) Indicating a power adjustment state; delta'TF，c(i) An associated power offset value representing the MCS;
and/or
When the PUSCH and the PUCCH are simultaneously transmitted, the transmission power of the No. i subframe when the UE communicates on the PUSCH is as follows:
wherein,represents a maximum transmit power value for the UE;represents a transmission power value of the PUCCH; mPUSCH，c(i)、PO_PUSCH，c(j)、PLc、αc(j)、fc(i) And delta'TF，c(i) As defined when PUSCH is not transmitted simultaneously with PUCCH.
The embodiment of the invention provides a mobile communication method and user equipment, wherein when the user equipment UE communicates with a base station on a PUSCH, a related power compensation value of an MCS of an initial transmission frame is set as a first compensation value; acquiring the transmitting power of an initial transmission frame of the UE when the UE communicates on the PUSCH of the serving cell according to the first compensation value; and transmitting data and/or signaling to the base station through the initial transmission frame of the PUSCH by using the transmission power. Therefore, the transmitting power of the initial transmission frame is less influenced by the MCS, so that the transmitting power of the initial transmission frame when the UE communicates with the base station on the PUSCH is as accurate as possible, and the transmitting power of the UE can be improved even when the MCS selected by the UE is smaller, thereby reducing the error rate on the PUSCH; and even when the MCS selected by the UE is higher, the transmitting power of the UE can be reduced, so that the waste of power and the interference to the adjacent regions with the same frequency are reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart illustrating a method of mobile communication according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating another mobile communication method according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a user equipment according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another user equipment according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment,
An embodiment of the present invention provides a method for mobile communication, as shown in fig. 1, the method includes:
101. when User Equipment (UE) communicates with a base station on a Physical Uplink Shared Channel (PUSCH), setting a relevant power compensation value of a Modulation and Coding Scheme (MCS) of an initial transmission frame as a first compensation value, so that the transmitting power of the initial transmission frame when the UE communicates on the PUSCH is less influenced by the MCS.
When the UE communicates with the base station on the PUSCH, the transmission power of the initial transmission frame is not adjusted based on the reference, and therefore the transmission power of the UE in the initial transmission frame may be lower or higher.
In the prior art, the transmission power of the UE in the initial transmission frame is affected by MCS. When the MCS selected by the base station for the UE is low and the power compensation value associated with the MCS on the initial frame is low, the error rate is high. When the MCS selected by the base station for the UE is higher and the power compensation value related to the MCS on the initial frame is higher, power waste and interference to the neighboring cells with the same frequency may be caused.
In the prior art, the relative power compensation value of the MCS is an estimated relative power compensation value of the MCS, and the estimated relative power compensation value of the MCS is:
wherein, the BPRE represents the number of bits transmitted on each resource symbol; when the control signaling is transmitted through PUSCH and there is no numberWhen the data is transmitted on the PUSCH,is equal toA power offset value representing control signaling versus data, and, in other cases,equal to 1; k is a radical ofsRepresenting a cell common parameter.
Estimated MCS dependent power offset Δ regardless of whether PUSCH is transmitted simultaneously with PUCCH or notTF，c(i) Are the same and are all formula (1).
As can be seen from equation (1), when k issΔ of subframe No. i of serving cell c when 1.25TF，c(i) Is represented by BPRE andand (6) determining. For theWhen control signaling is transmitted over the PUSCH and no data is transmitted on the PUSCH,is equal toA power offset value representing control signaling relative to data; in the other cases, the number of the first and second cases,equal to 1. As can be seen,there is no direct connection to the MCS, therefore, ΔTF，c(i) The value of (b) is determined by the BPRE. Since each MCS corresponds to one BPRE, when the base station determines the MCS for the UEThe value of BPRE is uniquely determined, and ΔTF，c(i) The value of (c) is also determined.
When the UE communicates with the base station on the PUSCH, if the MCS on the initial frame selected by the base station for the UE is low, ΔTF，c(i) If the transmission power is lower than zero, the error rate is higher. At this time, if the first compensation value is set to be larger than deltaTF，c(i) The related power compensation value of the MCS can be increased, the transmitting power of the UE is improved, and the error rate is further reduced.
When the UE communicates with the base station on the PUSCH, if the MCS on the initial frame selected by the base station for the UE is high, ΔTF，c(i) If the transmission power is higher than zero, power waste and interference to the adjacent regions with the same frequency will be caused. At this time, if the first compensation value is set to be less than ΔTF，c(i) The method can reduce the related power compensation value of the MCS, reduce the transmitting power of the UE, and further reduce the waste of power and the interference to the adjacent regions with the same frequency.
Therefore, when the UE communicates with the base station on the PUSCH, the relevant power compensation value of the MCS needs to be set, so that the transmit power of the UE in the initial frame is less affected by the MCS.
In the embodiment of the invention, when the UE communicates with the base station on the PUSCH, the related power compensation value of the MCS of the initial transmission frame is set as the first compensation value.
In summary, in order to make the transmit power of the initial transmission frame of the UE in the PUSCH communication less affected by the MCS, the absolute value of the first compensation value may be set to be smaller than ΔTF，c(i) Absolute value of (a).
Optionally, when the UE communicates with the base station on the PUSCH, the first compensation value may be set to zero.
And when the first compensation value is zero, the transmitting power of the UE on the initial transmission frame is not influenced by the MCS.
102. And acquiring the transmitting power of an initial transmission frame of the UE when the UE communicates on the PUSCH of the serving cell according to the first compensation value.
After the first compensation value is determined, the UE may obtain the transmission power of the initial transmission frame when the UE communicates on the PUSCH of the serving cell according to the definition of the transmission power of the UE on the PUSCH.
The definition of the transmit power differs depending on whether PUSCH and PUCCH are transmitted simultaneously. In any case, the UE may obtain the transmission power of the initial transmission frame when the UE communicates on the PUSCH of the serving cell according to the definition of the transmission power.
103. And transmitting data and/or signaling to the base station through the initial transmission frame of the PUSCH by using the transmission power.
And after the transmission power of the initial transmission frame of the PUSCH is determined when the UE carries out communication on the PUSCH, the UE transmits data information and/or signaling to the base station through the initial transmission frame of the PUSCH according to the determined transmission power. And the UE adjusts the power on the subframes except the initial transmission frame by taking the transmitting power as a reference so that the transmitting power is in a range suitable for the base station to receive.
The embodiment of the invention provides a mobile communication method, when User Equipment (UE) communicates with a base station on a PUSCH, setting a related power compensation value of an MCS of an initial frame as a first compensation value; acquiring the transmitting power of an initial transmission frame of the UE when the UE communicates on the PUSCH of the serving cell according to the first compensation value; and transmitting data and/or signaling to the base station through the initial transmission frame of the PUSCH by using the transmission power. Therefore, the transmitting power of the initial transmission frame is less influenced by the MCS, so that the transmitting power of the initial transmission frame when the UE communicates with the base station on the PUSCH is as accurate as possible, and the transmitting power of the UE can be improved even when the MCS selected by the UE is smaller, thereby reducing the error rate on the PUSCH; and even when the MCS selected by the UE is higher, the transmitting power of the UE can be reduced, so that the waste of power and the interference to the adjacent regions with the same frequency are reduced.
Example II,
An embodiment of the present invention provides a method for mobile communication, as shown in fig. 2, the method includes:
201. when the UE communicates with a base station on a Physical Uplink Shared Channel (PUSCH), setting a relevant power compensation value of a Modulation and Coding Scheme (MCS) of an initial frame as a first compensation value, wherein the first compensation value is as follows:
wherein, the BPRE represents the number of bits transmitted on each resource symbol; BPREinitialRepresenting the number of bits transmitted on each resource symbol on an initial transmission frame when the UE communicates with the base station on the PUSCH; when control signaling is transmitted over the PUSCH and no data is transmitted on the PUSCH,is equal toWherein,a power offset value representing control signaling versus data, and, in other cases,equal to 1; k is a radical ofsRepresenting a cell common parameter.
Regardless of whether the PUSCH is transmitted simultaneously with the PUCCH,is all unaffected by the MCS. At this time,. DELTA'TF，c(i) Is determined by the BPRE, i.e. by the MCS.
In a manner in which the base station selects a certain fixed MCS for all served UEs, the base station selects a lower MCS in order to allow the signal quality of all served UEs to meet the requirements of the base station for the MCS demodulation. In this way, when the UE communicates with the base station on the PUSCH, the UE can communicate with the base stationAt a first compensation value of delta'TF，c(i) In other words, from equation (2), it can be seen that the selection of the MCS does not affect the value of the first compensation value, which has less impact on the UE transmit power.
For the way that the base station adaptively selects the MCS for all the served UEs, the base station selects a lower MCS when the channel quality is sufficiently poor. For a first compensation value delta 'when the UE communicates with the base station on PUSCH'TF，c(i) In particular, from equation (2), it can be seen that the selection of MCS does not affect Δ'TF，c(i) The value of (c). When the channel quality is good enough, the base station selects a higher MCS. For a first compensation value delta 'when the UE communicates with the base station on PUSCH'TF，c(i) In particular, from equation (2), it can be seen that the selection of MCS does not affect Δ'TF，c(i) The value of (c). Therefore, the first compensation value has less influence on the UE transmission power.
Wherein, when there is data to transmit on the PUSCH, if ks＝1.25，Δ′TF，c(i) In the formulaIs 1, the first compensation value is:
for equation (3), when the UE communicates with the base station over the initial transmission frame, it can be derived that the first compensation value is zero.
When control signaling is transmitted over the PUSCH and no data is transmitted on the PUSCH, if ks＝1.25，Δ′TF，c(i) In the formulaHas a value ofAt this time, the process of the present invention,Δ′TF，c(i) is expressed as:
for equation (4), when the UE communicates with the base station on the initial transmission frame, it can be derived that the first compensation value is
202. And acquiring the transmitting power of an initial transmission frame of the UE when the UE communicates on the PUSCH of the serving cell according to the first compensation value.
And after the first compensation value is determined, the UE acquires the transmission power of the initial transmission frame when the UE communicates on the PUSCH of the serving cell according to the definition of the transmission power.
When the PUSCH is not transmitted simultaneously with the PUCCH, the transmit power of the UE is defined as:
wherein c represents a serving cell; pCMAX，c(i)Represents a maximum transmit power value for the UE; mPUSCH，c(i)Represents a transmission bandwidth, i.e., the number of resources, allocated to the UE by the base station; pO_PUSCH，c(j)Represents a target power value, i.e., a power value at which the base station desires to receive a signal; PLcIndicating the downstream path loss αc(j) Representing downlink path loss compensation; f. ofc(i) Indicating a power adjustment state; delta'TF，c(i) The power compensation value indicating the modulation coding scheme is the first compensation value.
Since signaling is transmitted on the PUCCH, when the PUSCH is not transmitted simultaneously with the PUCCH, the signaling cannot be transmitted on the PUSCH, and therefore, the first compensation value is zero when the PUSCH is transmitted on the initial frame. And the UE calculates the transmitting power of the initial transmission frame according to the formula (5).
When the PUSCH and PUCCH are transmitted simultaneously, the transmission power of the UE is:
wherein,represents a maximum transmit power value for the UE;represents a transmission power value of the PUCCH; mPUSCH，c(i)、POPUSCH，c(j)、PLc、αc(j)、fc(i) And delta'TF，c(i) As defined when PUSCH is not transmitted simultaneously with PUCCH.
When the PUSCH and PUCCH are transmitted simultaneously, there may be a case of control signaling and no data is transmitted on the PUSCH, and therefore, the first compensation value is:and the UE calculates the transmitting power of the initial transmission frame according to the formula (6).
203. And transmitting data and/or signaling to the base station through the initial transmission frame of the PUSCH by using the transmission power.
And after the transmission power of the initial transmission frame of the PUSCH is determined when the UE carries out communication on the PUSCH, the UE transmits data and/or signaling to the base station through the initial transmission frame of the PUSCH according to the determined transmission power.
And after the UE transmits data and/or signaling to the base station through the initial transmission frame of the PUSCH by using the transmission power, the UE performs power adjustment by using the transmission power as a reference so that the transmission power of the subframes except the initial transmission frame is in a range suitable for the base station to receive.
Specifically, the UE sets a power compensation value associated with the MCS of the subframe except for the initial transmission frame as the first compensation value. And acquiring the transmission power of the subframe except for the initial transmission frame when the UE communicates on the PUSCH of the serving cell according to the first compensation value, and sending data and/or signaling to the base station on the subframe except for the initial transmission frame according to the determined transmission power.
The embodiment of the invention provides a mobile communication method, when User Equipment (UE) communicates with a base station on a PUSCH, setting a related power compensation value of an MCS of an initial frame as a first compensation value; acquiring the transmitting power of an initial transmission frame of the UE when the UE communicates on the PUSCH of the serving cell according to the first compensation value; and transmitting data and/or signaling to the base station through the initial transmission frame of the PUSCH by using the transmission power. Therefore, the transmitting power of the initial transmission frame is less influenced by the MCS, so that the transmitting power of the initial transmission frame when the UE communicates with the base station on the PUSCH is as accurate as possible, and the transmitting power of the UE can be improved even when the MCS selected by the UE is smaller, thereby reducing the error rate on the PUSCH; even when the MCS selected by the UE is higher, the transmitting power of the UE can be reduced, so that the waste of power and the interference to the adjacent regions with the same frequency are reduced; furthermore, when the transmission power is adjusted on the subframes except the initial transmission frame, the transmission power can be adjusted to a proper value more quickly.
Example III,
An embodiment of the present invention provides a user equipment, as shown in fig. 3, where the user equipment 30 includes: a setting unit 31, an acquisition unit 32 and a transmission unit 33.
The setting unit 31 is configured to set a relevant power compensation value of a modulation and coding scheme MCS of an initial transmission frame as a first compensation value when the UE communicates with the base station on a physical uplink shared channel PUSCH, so that the transmit power of the initial transmission frame of the UE during the PUSCH communication is less affected by the MCS.
When the UE communicates with the base station on the PUSCH, the transmission power of the initial transmission frame is not adjusted based on the reference, and therefore the transmission power of the UE in the initial transmission frame may be lower or higher.
In the prior art, the transmission power of the UE in the initial transmission frame is affected by MCS. When the MCS selected by the base station for the UE is low and the power compensation value associated with the MCS on the initial frame is low, the error rate is high. When the MCS selected by the base station for the UE is higher and the power compensation value related to the MCS on the initial frame is higher, power waste and interference to the neighboring cells with the same frequency may be caused.
In the prior art, the relative power compensation value of the MCS is an estimated relative power compensation value of the MCS, and the estimated relative power compensation value of the MCS is:
wherein, the BPRE represents the number of bits transmitted on each resource symbol; when control signaling is transmitted over the PUSCH and no data is transmitted on the PUSCH,is equal toA power offset value representing control signaling versus data, and, in other cases,equal to 1; k is a radical ofsRepresenting a cell common parameter.
Estimated MCS dependent power offset Δ regardless of whether PUSCH is transmitted simultaneously with PUCCH or notTF，c(i) Are the same and are all formula (1).
As can be seen from equation (1), when k issΔ of subframe No. i of serving cell c when 1.25TF，c(i) Is represented by BPRE andand (6) determining. For theWhen control signaling is transmitted over the PUSCH and no data is transmitted on the PUSCH,is equal toA power offset value representing control signaling relative to data; in the other cases, the number of the first and second cases,equal to 1. As can be seen,there is no direct connection to the MCS, therefore, ΔTF，c(i) The value of (b) is determined by the BPRE. Since each MCS corresponds to one BPRE, when the base station determines the MCS for the UE, the value of the BPRE is uniquely determined, and then ΔTF，c(i) The value of (c) is also determined.
When the UE communicates with the base station on the PUSCH, if the MCS on the initial frame selected by the base station for the UE is low, ΔTF，c(i) If the transmission power is lower than zero, the error rate is higher. At this time, if the setting unit 31 sets the first compensation value to be larger than ΔTF，c(i) The related power compensation value of the MCS can be increased, the transmitting power of the UE is improved, and the error rate is further reduced.
When the UE communicates with the base station on the PUSCH, if the MCS on the initial frame selected by the base station for the UE is high, ΔTF，c(i) If the transmission power is higher than zero, power waste and interference to the adjacent regions with the same frequency will be caused. At this time, if the setting unit 31 sets the first compensation value to be less than ΔTF，c(i) The method can reduce the related power compensation value of the MCS, reduce the transmitting power of the UE, and further reduce the waste of power and the interference to the adjacent regions with the same frequency.
Therefore, when the UE communicates with the base station on the PUSCH, the setting unit 31 needs to set the relevant power compensation value of the MCS, so that the transmit power of the UE in the initial frame is less affected by the MCS.
In the embodiment of the present invention, when the UE communicates with the base station on the PUSCH, the setting unit 31 sets the power compensation value related to the MCS of the initial transmission frame as the first compensation value.
In summary, in order to make the transmit power of the initial transmission frame of the UE communicating on the PUSCH less affected by the MCS, the setting unit 31 may set the absolute value of the first compensation value to be smaller than ΔTF，c(i) Absolute value of (a).
The setting unit 31 is further configured to set the first compensation value to zero.
And when the first compensation value is zero, the transmitting power of the UE on the initial transmission frame is not influenced by the MCS.
The obtaining unit 32 is configured to obtain, according to the first compensation value, transmission power of an initial transmission frame when the UE performs communication on a PUSCH of a serving cell.
After the first compensation value is determined, the obtaining unit 32 may obtain the transmission power of the initial transmission frame when the UE communicates on the PUSCH of the serving cell according to the definition of the transmission power of the UE on the PUSCH.
The definition of the transmit power differs depending on whether PUSCH and PUCCH are transmitted simultaneously. In any case, the obtaining unit 32 may obtain the transmission power of the initial transmission frame when the UE communicates on the PUSCH of the serving cell according to the definition of the transmission power.
When the PUSCH is not transmitted simultaneously with the PUCCH, the transmit power of the UE is defined as:
wherein c represents a serving cell; pCMAX，c(i)Represents a maximum transmit power value for the UE; mPUSCH，c(i)Represents a transmission bandwidth, i.e., the number of resources, allocated to the UE by the base station; pO_PUSCH，c(j)Represents a target power value, i.e., a power value at which the base station desires to receive a signal; PLcIndicating the downstream path loss αc(j) Representing downlink path loss compensation; f. ofc(i) Indicating a power adjustment state; delta'TF，c(i) The power compensation value indicating the modulation coding scheme is the first compensation value.
When the PUSCH and PUCCH are transmitted simultaneously, the transmission power of the UE is:
wherein,represents a maximum transmit power value for the UE;represents a transmission power value of the PUCCH; mPUSCH，c(i)、PO_PUSCH，c(j)、PLc、αc(j)、fc(i) And delta'TF，c(i) As defined when PUSCH is not transmitted simultaneously with PUCCH.
The sending unit 33 is configured to transmit data and/or signaling to the base station through the initial frame of the PUSCH at the transmission power.
After the transmission power of the initial transmission frame of the PUSCH is determined when the UE performs communication on the PUSCH, the sending unit 33 transmits data information and/or signaling to the base station through the initial transmission frame of the PUSCH at the determined transmission power.
The setting unit 31 is further configured to set the first compensation value as:
wherein, the BPRE represents the number of bits transmitted on each resource symbol; BPREinitialRepresenting the number of bits transmitted on each resource symbol on an initial transmission frame when the UE communicates with the base station on the PUSCH; when control signaling is transmitted over the PUSCH and no data is transmitted on the PUSCH,is equal toWherein,a power offset value representing control signaling versus data, and, in other cases,equal to 1; k is a radical ofsRepresenting a cell common parameter.
Regardless of whether the PUSCH is transmitted simultaneously with the PUCCH,is all unaffected by the MCS. At this time,. DELTA'TF，c(i) Is determined by the BPRE, i.e. by the MCS.
In a manner in which the base station selects a certain fixed MCS for all served UEs, the base station selects a lower MCS in order to allow the signal quality of all served UEs to meet the requirements of the base station for the MCS demodulation. Thus, when the UE communicates with the base station on the PUSCH, the first compensation value Δ'TF，c(i) In other words, from equation (2), it can be seen that the selection of the MCS does not affect the value of the first compensation value, which has less impact on the UE transmit power.
For the way that the base station adaptively selects the MCS for all the served UEs, the base station selects a lower MCS when the channel quality is sufficiently poor. For a first compensation value delta 'when the UE communicates with the base station on PUSCH'TF，c(i) In particular, from equation (2), it can be seen that the selection of MCS does not affect Δ'TF，c(i) The value of (c). When the channel quality is good enough, the base station selects a higher MCS. For a first compensation value delta 'when the UE communicates with the base station on PUSCH'TF，c(i) In particular, from equation (2), it can be seen that the selection of MCS does not affect Δ'TF，c(i) The value of (c). Therefore, the first compensation value has less influence on the UE transmission power.
Wherein, when there is data to transmit on the PUSCH, if ks＝1.25，Δ′TF，c(i) In the formulaIs 1, the first compensation value is:
for equation (3), when the UE communicates with the base station over the initial transmission frame, it can be derived that the first compensation value is zero.
When control signaling is transmitted over the PUSCH and no data is transmitted on the PUSCH, if ks＝1.25，Δ′TF，c(i) In the formulaHas a value ofAt this time,. DELTA'TF，c(i) Is expressed as:
for equation (4), when the UE communicates with the base station on the initial transmission frame, it can be derived that the first compensation value is
Since signaling is transmitted on the PUCCH, when the PUSCH is not transmitted simultaneously with the PUCCH, the signaling cannot be transmitted on the PUSCH, and therefore, the first compensation value is zero when the PUSCH is transmitted on the initial frame. The obtaining unit 32 calculates the transmission power of the initial transmission frame according to equation (5). The sending unit 33 transmits data and/or signaling on the initial frame of PUSCH with the transmission power.
When the PUSCH and PUCCH are transmitted simultaneously, there may be a case of control signaling and no data is transmitted on the PUSCH, and therefore, the first compensation value is:and the UE calculates the transmitting power of the initial transmission frame according to the formula (6). The sending unit 33 transmits data and/or signaling on the initial frame of PUSCH with the transmission power.
After the transmitting unit 33 transmits data and/or signaling to the base station through the initial frame of the PUSCH at the transmission power, the UE performs power adjustment with reference to the transmission power, so that the transmission power of subframes except the initial frame is within a range suitable for being received by the base station.
The setting unit 31 is further configured to set, when the UE communicates with the base station on the PUSCH, the power compensation value related to the MCS of the subframe except for the initial transmission frame as the first compensation value.
The obtaining unit 32 is further configured to obtain, according to the first compensation value, the transmission power of the subframe, except for the initial transmission frame, of the UE when performing communication on the PUSCH of the serving cell.
The sending unit 33 is further configured to transmit data and/or signaling to the base station through the subframe of the PUSCH except for the initial transmission frame with the transmission power.
The embodiment of the invention provides user equipment, wherein when the UE communicates with a base station on a PUSCH, a setting unit sets a related power compensation value of an MCS of an initial frame as a first compensation value; the obtaining unit obtains the transmitting power of an initial transmission frame when the UE communicates on the PUSCH of the serving cell according to the first compensation value; and the sending unit transmits data and/or signaling to the base station through the initial transmission frame of the PUSCH by using the transmission power. Therefore, the transmitting power of the initial transmission frame is less influenced by the MCS, so that the transmitting power of the initial transmission frame when the UE communicates with the base station on the PUSCH is as accurate as possible, and the transmitting power of the UE can be improved even when the MCS selected by the UE is smaller, thereby reducing the error rate on the PUSCH; even when the MCS selected by the UE is higher, the transmitting power of the UE can be reduced, so that the waste of power and the interference to the adjacent regions with the same frequency are reduced; furthermore, when the transmission power is adjusted on the subframes except the initial transmission frame, the transmission power can be adjusted to a proper value more quickly.
Example four,
An embodiment of the present invention provides a user equipment UE, and as shown in fig. 4, the user equipment 40 includes: a processor 41 and a transmitter 42.
The processor 41 is configured to set a relevant power compensation value of a modulation and coding scheme MCS of an initial transmission frame as a first compensation value when the UE communicates with the base station on a physical uplink shared channel PUSCH, so that the transmit power of the initial transmission frame of the UE during the PUSCH communication is less affected by the MCS.
When the UE communicates with the base station on the PUSCH, the transmission power of the initial transmission frame is not adjusted based on the reference, and therefore the transmission power of the UE in the initial transmission frame may be lower or higher.
In the prior art, the transmission power of the UE in the initial transmission frame is affected by MCS. When the MCS selected by the base station for the UE is low and the power compensation value associated with the MCS on the initial frame is low, the error rate is high. When the MCS selected by the base station for the UE is higher and the power compensation value related to the MCS on the initial frame is higher, power waste and interference to the neighboring cells with the same frequency may be caused.
In the prior art, the relative power compensation value of the MCS is an estimated relative power compensation value of the MCS, and the estimated relative power compensation value of the MCS is:
wherein, the BPRE represents the number of bits transmitted on each resource symbol; when control signaling is transmitted over the PUSCH and no data is transmitted on the PUSCH,is equal toA power offset value representing control signaling versus data, and, in other cases,equal to 1; k is a radical ofsRepresenting a cell common parameter.
Estimated MCS dependent power offset Δ regardless of whether PUSCH is transmitted simultaneously with PUCCH or notTF，c(i) Are the same and are all formula (1).
As can be seen from equation (1), when k issΔ of subframe No. i of serving cell c when 1.25TF，c(i) Is represented by BPRE andand (6) determining. For theWhen control signaling is transmitted over the PUSCH and no data is transmitted on the PUSCH,is equal toA power offset value representing control signaling relative to data; in the other cases, the number of the first and second cases,equal to 1. As can be seen,there is no direct connection to the MCS, therefore, ΔTF，c(i) The value of (b) is determined by the BPRE. Since each MCS corresponds to one BPRE, when the base station determines the MCS for the UE, the value of the BPRE is uniquely determined, and then ΔTF，c(i) The value of (c) is also determined.
When the UE communicates with the base station on the PUSCH, if the MCS on the initial frame selected by the base station for the UE is low, ΔTF，c(i) If the transmission power is lower than zero, the error rate is higher. At this time, if the processor 41 sets the first compensation value to be larger than ΔTF，c(i) The related power compensation value of the MCS can be increased, the transmitting power of the UE is improved, and the error rate is further reduced.
When the UE communicates with the base station on the PUSCH, if the MCS on the initial frame selected by the base station for the UE is high, ΔTF，c(i) If the transmission power is higher than zero, power waste and interference to the adjacent regions with the same frequency will be caused. At this time, if the processor 41 sets the first compensation value to be less than ΔTF，c(i) The method can reduce the related power compensation value of the MCS, reduce the transmitting power of the UE, and further reduce the waste of power and the interference to the adjacent regions with the same frequency.
Therefore, when the UE communicates with the base station on the PUSCH, the processor 41 needs to set the relevant power compensation value of the MCS, so that the transmit power of the UE in the initial frame is less affected by the MCS.
In this embodiment of the present invention, when the UE communicates with the base station on the PUSCH, the processor 41 sets the power compensation value associated with the MCS of the initial transmission frame as the first compensation value.
To sum up, in order to enable the UE to communicate at the beginning of the PUSCHThe transmit power of the transmitted frame is less affected by the MCS, and the processor 41 may set the absolute value of the first compensation value to be less than ΔTF，c(i) Absolute value of (a).
The processor 41 is further configured to set the first compensation value to zero.
And when the first compensation value is zero, the transmitting power of the UE on the initial transmission frame is not influenced by the MCS.
The processor 41 is further configured to obtain, according to the first compensation value, a transmission power of an initial transmission frame when the UE communicates on a PUSCH of a serving cell.
After the first compensation value is determined, the processor 41 may obtain the transmission power of the initial transmission frame when the UE communicates on the PUSCH of the serving cell according to the definition of the transmission power of the UE on the PUSCH.
The definition of the transmit power differs depending on whether PUSCH and PUCCH are transmitted simultaneously. In any case, the processor 41 may obtain the transmission power of the initial transmission frame when the UE communicates on the PUSCH of the serving cell according to the definition of the transmission power.
When the PUSCH is not transmitted simultaneously with the PUCCH, the transmit power of the UE is defined as:
wherein c represents a serving cell; pCMAX，c(i)Represents a maximum transmit power value for the UE; mPUSCH，c(i)Represents a transmission bandwidth, i.e., the number of resources, allocated to the UE by the base station; pO_PUSCH，c(j)Represents a target power value, i.e., a power value at which the base station desires to receive a signal; PLcIndicating the downstream path loss αc(j) Representing downlink path loss compensation; f. ofc(i) Indicating a power adjustment state; delta'TF，c(i) The power compensation value indicating the modulation coding scheme is the first compensation value.
When the PUSCH and PUCCH are transmitted simultaneously, the transmission power of the UE is:
wherein,represents a maximum transmit power value for the UE;represents a transmission power value of the PUCCH; mPUSCH，c(i)、PO_PUSCH，c(j)、PLc、αc(j)、fc(i) And delta'TF，c(i) As defined when PUSCH is not transmitted simultaneously with PUCCH.
And the transmitter 42 is configured to transmit data and/or signaling to the base station through the initial frame of the PUSCH at the transmission power.
After the transmission power of the initial transmission frame when the UE communicates on the PUSCH is determined, the transmitter 42 transmits data information and/or signaling to the base station through the initial transmission frame of the PUSCH at the determined transmission power.
The processor 41 is further configured to set the first compensation value as:
wherein, the BPRE represents the number of bits transmitted on each resource symbol; BPREinitialRepresenting the number of bits transmitted on each resource symbol on an initial transmission frame when the UE communicates with the base station on the PUSCH; when control signaling is transmitted over the PUSCH and no data is transmitted on the PUSCH,is equal toWherein,a power offset value representing control signaling versus data, and, in other cases,equal to 1; k is a radical ofsRepresenting a cell common parameter.
Regardless of whether the PUSCH is transmitted simultaneously with the PUCCH,is all unaffected by the MCS. At this time,. DELTA'TF，c(i) Is determined by the BPRE, i.e. by the MCS.
In a manner in which the base station selects a certain fixed MCS for all served UEs, the base station selects a lower MCS in order to allow the signal quality of all served UEs to meet the requirements of the base station for the MCS demodulation. Thus, when the UE communicates with the base station on the PUSCH, the first compensation value Δ'TF，c(i) In other words, from equation (2), it can be seen that the selection of the MCS does not affect the value of the first compensation value, which has less impact on the UE transmit power.
For the way that the base station adaptively selects the MCS for all the served UEs, the base station selects a lower MCS when the channel quality is sufficiently poor. For a first compensation value delta 'when the UE communicates with the base station on PUSCH'TF，c(i) In particular, from equation (2), it can be seen that the selection of MCS does not affect Δ'TF，c(i) The value of (c). When the channel quality is good enough, the base station selects a higher MCS. For a first compensation value delta 'when the UE communicates with the base station on PUSCH'TF，c(i) In particular, from equation (2), it can be seen that the selection of MCS does not affect Δ'TF，c(i) The value of (c). Therefore, the first compensation value has less influence on the UE transmission power.
Wherein, when there is data to transmit on the PUSCH, if ks＝1.25，Δ′TF，c(i) In the formulaIs 1, the first compensation value is:
for equation (3), when the UE communicates with the base station over the initial transmission frame, it can be derived that the first compensation value is zero.
When control signaling is transmitted over the PUSCH and no data is transmitted on the PUSCH, if ks＝1.25，Δ′TF，c(i) In the formulaHas a value ofAt this time,. DELTA'TF，c(i) Is expressed as:
for equation (4), when the UE communicates with the base station on the initial transmission frame, it can be derived that the first compensation value is
Since signaling is transmitted on the PUCCH, when the PUSCH is not transmitted simultaneously with the PUCCH, the signaling cannot be transmitted on the PUSCH, and therefore, the first compensation value is zero when the PUSCH is transmitted on the initial frame. The processor 41 calculates the transmission power of the initial transmission frame according to formula (5). The transmitter 42 transmits data and/or signaling on the initial frame of the PUSCH at the transmission power.
When the PUSCH and PUCCH are transmitted simultaneously, there may be a case of control signaling and no data is transmitted on the PUSCH, and therefore, the first compensation value is:and the UE calculates the transmitting power of the initial transmission frame according to the formula (6). The transmitter 42 transmits data and/or signaling on the initial frame of the PUSCH at the transmission power.
After the transmitter 42 transmits data and/or signaling to the base station through the initial transmission frame of the PUSCH at the transmission power, the UE performs power adjustment based on the transmission power, so that the transmission power of the subframes except the initial transmission frame is within a range suitable for the base station to receive.
The processor 41 is further configured to set a relevant power compensation value of the MCS of the subframe except for the initial transmission frame as the first compensation value when the UE communicates with the base station on the PUSCH.
The processor 41 is further configured to obtain, according to the first compensation value, transmission power of subframes, except for an initial transmission frame, of the UE in PUSCH communication in a serving cell.
The transmitter 42 is further configured to transmit data and/or signaling to the base station through a subframe of the PUSCH except for an initial transmission frame at the transmission power.
The embodiment of the invention provides user equipment, wherein when the UE communicates with a base station on a PUSCH, a processor sets a related power compensation value of an MCS of an initial frame as a first compensation value; the processor acquires the transmission power of an initial transmission frame of the UE when the UE communicates on the PUSCH of the serving cell according to the first compensation value; and the transmitter transmits data and/or signaling to the base station through the initial transmission frame of the PUSCH at the transmission power. Therefore, the transmitting power of the initial transmission frame is less influenced by the MCS, so that the transmitting power of the initial transmission frame when the UE communicates with the base station on the PUSCH is as accurate as possible, and the transmitting power of the UE can be improved even when the MCS selected by the UE is smaller, thereby reducing the error rate on the PUSCH; even when the MCS selected by the UE is higher, the transmitting power of the UE can be reduced, so that the waste of power and the interference to the adjacent regions with the same frequency are reduced; furthermore, when the transmission power is adjusted on the subframes except the initial transmission frame, the transmission power can be adjusted to a proper value more quickly.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (12)

1. A method of mobile communication, characterized in that,
when User Equipment (UE) communicates with a base station on a Physical Uplink Shared Channel (PUSCH), setting a relevant power compensation value of a Modulation and Coding Scheme (MCS) of an initial transmission frame as a first compensation value, so that the transmitting power of the initial transmission frame of the UE is less influenced by the MCS when the PUSCH communicates;
acquiring the transmitting power of an initial transmission frame of the UE when the UE communicates on the PUSCH of the serving cell according to the first compensation value;
and transmitting data and/or signaling to the base station through the initial transmission frame of the PUSCH by using the transmission power.
2. The method of claim 1, wherein the first compensation value is zero.
3. The method of claim 1, wherein the first compensation value is:
wherein, the BPRE represents the number of bits transmitted on each resource symbol; BPREinitialRepresenting the number of bits transmitted on each resource symbol on an initial transmission frame when the UE communicates with the base station on the PUSCH; when control signaling is transmitted over the PUSCH and no data is transmitted on the PUSCH,is equal toWherein,a power offset value representing control signaling versus data, and, in other cases,equal to 1; k is a radical ofsRepresenting a cell common parameter.
4. The method of claim 3, wherein when control signaling is transmitted on a PUSCH and no data is transmitted on the PUSCH, the first backoff value is:when there is aThe first compensation value is zero when transmitted on the PUSCH.
5. The method of claim 3, further comprising, after transmitting data and/or signaling to the base station through the initial frame of the PUSCH at the transmission power:
when the UE communicates with the base station on the PUSCH, setting the MCS related power compensation value of the subframe except the initial transmission frame as the first compensation value;
acquiring the transmitting power of the sub-frames except for the initial transmission frame when the UE communicates on the PUSCH of the serving cell according to the first compensation value;
and transmitting data and/or signaling to the base station through the subframes of the PUSCH except the initial transmission frame at the transmission power.
6. The method according to claim 5, wherein obtaining the transmission power of the initial transmission frame and the subframes other than the initial transmission frame when the UE communicates on the PUSCH according to the first compensation value specifically comprises:
when the PUSCH is not transmitted simultaneously with the PUCCH, the transmission power of the No. i subframe when the UE communicates on the PUSCH is as follows:
wherein c represents a serving cell; pCMAX,c(i)Represents a maximum transmit power value for the UE; mPUSCH,c(i)Represents a transmission bandwidth, i.e., the number of resources, allocated to the UE by the base station; pO_PUSCH,c(j)Represents a target power value, i.e., a power value at which the base station desires to receive a signal; PLcIndicating the downstream path loss αc(j) Representing a downlink path loss compensation factor; f. ofc(i) Indicating a power adjustment state; delta'TF,c(i) An associated power offset value representing the MCS;
and/or
When the PUSCH and the PUCCH are simultaneously transmitted, the transmission power of the No. i subframe when the UE communicates on the PUSCH is as follows:
wherein,represents a maximum transmit power value for the UE;represents a transmission power value of the PUCCH; mPUSCH,c(i)、PO_PUSCH,c(j)、PLc、αc(j)、fc(i) And delta'TF,c(i) The definition of (3) is the same as that when the PUSCH is not transmitted simultaneously with the PUCCH.
7. A user equipment, the user equipment comprising: the device comprises a setting unit, an acquisition unit and a sending unit;
the setting unit is used for setting a relevant power compensation value of a Modulation and Coding Scheme (MCS) of an initial transmission frame as a first compensation value when User Equipment (UE) communicates with a base station on a Physical Uplink Shared Channel (PUSCH), so that the transmitting power of the initial transmission frame of the UE is less influenced by the MCS when the PUSCH communicates;
the obtaining unit is configured to obtain, according to the first compensation value, transmission power of an initial transmission frame when the UE communicates on a PUSCH of a serving cell;
and the sending unit is configured to transmit data and/or signaling to the base station through the initial frame of the PUSCH at the transmission power.
8. The UE of claim 7, wherein the first offset value is zero.
9. The UE of claim 7, wherein the first offset value is:
wherein, the BPRE represents the number of bits transmitted on each resource symbol; BPREinitialRepresenting the number of bits transmitted on each resource symbol on an initial transmission frame when the UE communicates with the base station on the PUSCH; when control signaling is transmitted over the PUSCH and no data is transmitted on the PUSCH,is equal toWherein,a power offset value representing control signaling versus data, and, in other cases,equal to 1; k is a radical ofsRepresenting a cell common parameter.
10. The UE of claim 9, wherein when the control signaling is transmitted on PUSCH and no data is transmitted on PUSCH, the first backoff value is:when there is data to be transmitted on the PUSCH, the first compensation value is zero.
11. The user equipment of claim 9,
the setting unit is further configured to set, when the UE communicates with the base station on the PUSCH, a power compensation value related to the MCS of the subframe except for the initial transmission frame as the first compensation value;
the obtaining unit is further configured to obtain, according to the first compensation value, transmission power of a subframe of the UE except for an initial transmission frame when the UE communicates on a PUSCH of a serving cell;
the sending unit is further configured to transmit data and/or signaling to the base station through the subframe of the PUSCH except for the initial transmission frame with the transmission power.
12. The UE according to claim 11, wherein the obtaining unit obtains, according to the first compensation value, the transmission power of the UE in the PUSCH for communication in the initial transmission frame and the subframes other than the initial transmission frame specifically includes:
when the PUSCH is not transmitted simultaneously with the PUCCH, the transmission power of the No. i subframe when the UE communicates on the PUSCH is as follows:
wherein c represents a serving cell; pCMAX,c(i)Represents a maximum transmit power value for the UE; mPUSCH,c(i)Represents a transmission bandwidth, i.e., the number of resources, allocated to the UE by the base station; pO_PUSCH,c(j)Represents a target power value, i.e., a power value at which the base station desires to receive a signal; PLcIndicating the downstream path loss αc(j) Representing a downlink path loss compensation factor; f. ofc(i) Indicating a power adjustment state; delta'TF,c(i) An associated power offset value representing the MCS;
and/or
When the PUSCH and the PUCCH are simultaneously transmitted, the transmission power of the No. i subframe when the UE communicates on the PUSCH is as follows:
wherein,represents a maximum transmit power value for the UE;represents a transmission power value of the PUCCH; mPUSCH,c(i)、PO_PUSCH,c(j)、PLc、αc(j)、fc(i) And delta'TF,c(i) The definition of (3) is the same as that when the PUSCH is not transmitted simultaneously with the PUCCH.
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US11546858B2 (en) * 2018-03-23 2023-01-03 Qualcomm Incorporated Power control techniques for uplink control information transmissions in wireless communications
US11153828B2 (en) * 2018-08-22 2021-10-19 Qualcomm Incorporated Spectral efficiency determination for power control for uplink control information transmission on an uplink data channel

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