CN110752908A - Method and equipment for determining transmission power of physical uplink shared channel - Google Patents
Method and equipment for determining transmission power of physical uplink shared channel Download PDFInfo
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- CN110752908A CN110752908A CN201910943834.9A CN201910943834A CN110752908A CN 110752908 A CN110752908 A CN 110752908A CN 201910943834 A CN201910943834 A CN 201910943834A CN 110752908 A CN110752908 A CN 110752908A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0058—Allocation criteria
- H04L5/0064—Rate requirement of the data, e.g. scalable bandwidth, data priority
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
Abstract
The application discloses a method for determining the sending power of a physical uplink shared channel, which comprises the following steps: according to the indication of the scheduling information, repeatedly transmitting UCI in M PUSCHs, wherein the M PUSCHs do not contain UL-SCH; and determining the transmission power adjustment amount of the r-th PUSCH according to the number of resources which can be used for transmitting UCI in the r-th (r is less than or equal to M) PUSCH, and adjusting the transmission power of the r-th PUSCH, wherein the transmission power adjustment amount is inversely related to the number of the resources. The application also comprises a mobile terminal device for use in the method. The invention solves the problem of how to determine the sending power adjustment quantity of each PUSCH when the resources which can be used for transmitting the target UCI in M times of actual PUSCHs are different, thereby not only meeting the UCI receiving performance requirement but also avoiding reducing the system efficiency.
Description
Technical Field
The present application relates to the field of mobile communications technologies, and in particular, to a method and a device for determining transmit power of a physical uplink shared channel.
Background
The NR system of Rel.16 will support a reliability requirement of 1 × 10-6And URLLC (Ultra-reliable and Low Latency communication) traffic with a delay requirement below 0.5ms at the minimum. By using repeated transmission of the PUSCH, on one hand, the transmission reliability can be improved, and on the other hand, the requirement that the receiving equipment acquires the PUSCH initial demodulation result as early as possible can be met.
The network equipment indicates the uplink data channels needing N repeated transmissions through scheduling, and the scheduling indicates that the uplink data channels do not include the UL-SCH. During transmission, since the uplink data channel crossing a slot is divided by a slot boundary, the actually transmitted PUSCH is divided into M (M > N), the number of time symbols included in each actually transmitted PUSCH is different, that is, resources used for Uplink Control Information (UCI) in each "actual PUSCH" may be different.
If the number of resources for UCI transmission in the actual PUSCH is different, the coding rate for transmitting UCI is different. Determining the PUSCH Transmission Power in the prior art, the amount of Transmission Power adjustment ΔTF，b，f，c(i) Is taken to be only the sum QmR and
these parameters are related (see 3GPP TS38.213 V15.6.0), and these parameters are the same for M actual PUSCHs, so the transmission power of the M actual PUSCHs is the same.
The coding rates are different but the transmission power is the same, resulting in different demodulation performance of UCI for M actual PUSCH transmissions. In particular, it is possible that the partial actual PUSCH transmission performance is much higher than required and the partial actual PUSCH transmission performance is much lower than required, that is, the performance of UCI is unbalanced on repeated PUSCH. In order to meet the UCI transmission performance requirement, the base station has to schedule excessive PUSCH resources, which eventually results in poor UCI reception performance and low system efficiency.
Disclosure of Invention
The application provides a method and equipment for determining the sending power of a physical uplink shared channel, and the invention solves the problems that: if the resources which can be used for transmitting the target UCI in M times of actual PUSCHs by the terminal equipment are different, how to determine the sending power adjustment amount of each PUSCH meets the UCI receiving performance requirement and avoids reducing the system efficiency.
A method for determining the transmission power of a physical uplink shared channel (PUCCH) comprises the following steps:
according to the indication of the scheduling information, repeatedly transmitting UCI in M PUSCHs, wherein the M PUSCHs do not contain UL-SCH;
and determining the transmission power adjustment amount of the r-th PUSCH according to the number of resources which can be used for transmitting UCI in the r-th (r is less than or equal to M) PUSCH, and adjusting the transmission power of the r-th PUSCH, wherein the transmission power adjustment amount is inversely related to the number of the resources.
Preferably, the step of determining the transmission power adjustment amount of the r-th PUSCH according to the number of resources available for transmitting UCI in the r-th PUSCH further includes:
determining an adjustment coefficient according to the number of resources available for transmitting UCI in the r-th PUSCH, wherein the adjustment coefficient is positively correlated with, e.g., proportional to, the number of resources; the adjustment coefficient acts on the transmission power adjustment amount, and the transmission power adjustment amount is inversely related to the adjustment coefficient.
Or, determining an adjustment coefficient according to the number of resources available for transmitting UCI in the r-th PUSCH, wherein the adjustment coefficient is inversely related to the number of resources, e.g., inversely proportional; the adjustment coefficient acts on the transmission power adjustment amount, and the transmission power adjustment amount is positively correlated with the adjustment coefficient.
Preferably, the resource number is a modulation symbol number or a time domain symbol number used for UCI transmission in an r-th PUSCH transmission resource.
Preferably, the adjustment coefficient is the number of modulation symbols or the number of time domain symbols used for UCI transmission in the transmission resource of the r-th PUSCH, and the transmission power adjustment amount is inversely related to the adjustment coefficient.
Preferably, the adjustment coefficient is a ratio of the number of modulation symbols for UCI transmission in the transmission resource of the PUSCH used as a reference to the number of modulation symbols for UCI transmission in the transmission resource of the r-th PUSCH; the transmission power adjustment amount is positively correlated with the adjustment coefficient.
Preferably, the adjustment coefficient is a ratio of the number of time symbols indicated by the resource allocation field in the scheduling information to the number of time domain symbols for UCI transmission in the transmission resource of the r-th PUSCH; the transmission power adjustment amount is positively correlated with the adjustment coefficient.
Preferably, the adjustment coefficient is a coding rate of transmitting UCI in the r-th PUSCH; the transmission power adjustment amount is positively correlated with the adjustment coefficient.
Preferably, the adjustment coefficient is a ratio of a coding rate of transmission UCI in the r-th PUSCH and a coding rate indicated by a resource allocation field in scheduling information, and the transmission power adjustment amount is positively correlated with the adjustment coefficient.
The transmission power adjustment amount
Wherein BPRE is a modified BPRE value, the modified BPRE value being an arbitrary function of the BPRE value and the adjustment factor, and the modified BPRE value and the BPRE value being positively correlated; if the adjustment factor is positively correlated with the number of resources, the improved BPRE value and the adjustment factor are negatively correlated; if the adjustment factor and the number of resources are negatively correlated, the improved BPRE value and the adjustment factor are positively correlated; ks，
The BPRE values are all configured values of the 3GPP TS38.213V15.6.0 standard.
Preferably, when the transmission power adjustment amount is positively correlated with the adjustment coefficient, the adjustment coefficient is used for BPRE weighted product to calculate the transmission power adjustment amount.
The application also provides a mobile terminal device, which is used in any one of the method embodiments of the application, wherein the mobile terminal is used for repeatedly sending UCI in M PUSCHs according to the indication of the scheduling information, and the M PUSCHs do not contain UL-SCH;
the mobile terminal is further configured to adjust the transmission power of an r-th PUSCH according to the number of resources available for UCI transmission in the r-th PUSCH (r is less than or equal to M), where the transmission power adjustment amount is inversely related to the number of resources.
The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:
with the scheme of this embodiment, although the number of resources available for transmission of UCI for each of the M PUSCHs is different, the transmission power adjustment amounts thereof can be made equivalent by adjusting the respective adjustment coefficients. And each PUSCH can meet the performance requirement of the target UCI through the scheduling of the base station, and the scheduling is not excessive, so that the problem of low system efficiency is avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic diagram of an actual PUSCH length affected by a slot boundary;
FIG. 2 is a flow chart of an embodiment of the method of the present invention;
fig. 3 is a diagram of an embodiment of a mobile terminal according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, 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 application.
The idea of the present invention is to reflect different factors of resources available for transmitting the target UCI in the transmission power adjustment amount of each PUSCH. The more resources available for transmitting UCI, the smaller the transmission power adjustment amount corresponding to the PUSCH. The less the resources available for transmitting UCI, the greater the amount of transmission power adjustment corresponding to the PUSCH. Thus, the transmission power of the PUSCH at each time can be adjusted to meet the performance requirement of UCI and avoid the problem of low system efficiency.
The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of an actual PUSCH length affected by a slot boundary.
In order to meet the requirements of time delay and reliability of URLLC service, the NR system introduces a PUSCH repeated transmission mode. The network device instructs the terminal device to repeatedly transmit an uplink data channel (hereinafter referred to as "nominal PUSCH") N times by scheduling. The scheduling information also comprises the time position and the number of the symbols occupied by the nominal PUSCH. For example, the scheduling information includes the symbol position and number of the first "nominal PUSCH", and the terminal device may determine the symbol position and number of the symbols occupied by each of the plurality of "nominal PUSCHs" in time. If the nominal PUSCH crosses the slot boundary once, the nominal PUSCH is divided into two actual PUSCHs by taking the slot boundary as the boundary during actual transmission; in addition, if a "nominal PUSCH" includes a symbol indicated as downlink, the "nominal PUSCH" is also divided into two "actual PUSCHs" bounded by the symbol.
As shown in fig. 1, the network device indicates a repetition number of 3, and the first "nominal PUSCH" is temporally located from the 5 th symbol to the 12 th symbol in slot # n. Based on this, the terminal device can determine that the second time "nominal PUSCH" is located from the 13 th symbol in slot # n to the 6 th symbol in slot # n +1 in time, and the third time "nominal PUSCH" is located from the 7 th symbol in slot # n +1 to the 14 th symbol in slot # n +1 in time. Since the second time "nominal PUSCH" crosses the slot boundary between slot # n and slot # n +1 in time, the second time "nominal PUSCH" is divided into two times "actual PUSCH" with the slot boundary as a boundary, and is respectively located from the 13 th symbol in slot # n to the 14 th symbol in slot # n, and from the 1 st symbol in slot # n +1 to the 6 th symbol in slot # n + 1. In this way, the terminal device transmits signals on the first time "actual PUSCH", the second time "actual PUSCH", the third time "actual PUSCH", and the fourth time "actual PUSCH", respectively.
The terminal device also determines the transmission power of each actual PUSCH according to the determined transmission power. According to 3GPP TS38.213V15.6.0, the formula for determining the transmission power of PUSCH at the ith transmission time on uplink BWP (BandWidth Part) b corresponding to power configuration set parameter index j in serving cell c of carrier f includes "ΔTF，b，f，c(i) The term "one, which we refer to as" transmission power adjustment amount ", is hereinafter abbreviated as" Δ ", and includes:
KSwhen the content is equal to 1.25,KSwhen 0, Δ is 0. Wherein the value of KS is configured by the network device to the terminal device.
The terminal equipment also determines whether the transmitted PUSCH includes the UL-SCH according to an uplink scheduling grant (UL grant) transmitted by the network equipment in the DCI. If the PUSCH does not include the UL-SCH:
wherein Q ismAnd R schedules a modulation order and a target coding rate indicated by a field of a modulation coding scheme in DCI of the PUSCH, respectively. In this case, the UCI transmitted in the PUSCH is based on the CSI part 1, and is taken
Terminal equipment has two modes to obtainThe value of (a). The first method is that higher layer signaling is configured to the terminal equipment and is suitable for CSI part 1
The value of (a). The other is that the higher layer signaling is configured to the terminal equipment and is suitable for a plurality of CSI part 1
The terminal equipment obtains the physical downlink control information DCI applicable to the PUSCH from the physical downlink control information DCI for scheduling the PUSCH
Is which of the alternatives.
FIG. 2 is a flow chart of an embodiment of the method of the present invention.
The method for determining the sending power of the physical uplink shared channel comprises the following steps of 10-30:
step 10, repeatedly sending UCI in M PUSCHs according to the indication of the scheduling information, wherein the M PUSCHs do not contain UL-SCH;
the terminal equipment acquires scheduling information, determines to repeatedly transmit the target UCI in M PUSCHs according to the scheduling information, and determines that the M PUSCHs do not include the UL-SCH. Where M is a positive integer, since it is a repeated transmission, it can be understood that M > 1. Here, the M PUSCHs refer to "actual PUSCHs" in fig. 1.
It should be noted that in the NR system, the PUSCH may carry an uplink shared channel UL-SCH and/or uplink control information UCI sent by the terminal device. The UL-SCH includes uplink traffic data information sent by the terminal device to the network device. The UCI information includes HARQ-ACK and/or CSI. The CSI is classified into two types, CSI part 1 and CSI part 2. The CSI-Part 1 refers to CSI information with a fixed load size, for example, for CSI report of type 1, the CSI-Part 1 includes RI, CRI, CQI of a first codeword, and the like; for the CSI report of type 2, the CSI-part 1 includes RI, CQI, non-zero wideband amplitude of each layer, and the like. The CSI-Part 2 refers to CSI information with a load size that can be changed according to different measurement results, for example, for CSI report of type 1, the CSI-Part 2 includes a PMI, a CQI of a second codeword, and the like; for the CSI report of type 2, the CSI-part 2 includes PMI and the like.
The scheduling information may be, for example, higher layer signaling, and is used to configure PUSCH configuration resources of type 1. The scheduling information may also be, for example, dynamic grant scheduling, that is, physical downlink control information. The physical downlink control information is used for scheduling or activating a pre-configured PUSCH configuration resource of type 2.
And 20, determining the transmission power adjustment amount of the r-th PUSCH according to the number of resources which can be used for transmitting UCI in the r-th PUSCH (r is less than or equal to M), wherein the transmission power adjustment amount is inversely related to the number of the resources.
"negative correlation" in this document means that the direction of change of the values is opposite, for example, the transmission power adjustment amount decreases as the number of resources increases, or the transmission power adjustment amount increases as the number of resources decreases. Or, if the transmission power adjustment is expressed as a function of the number of resources, the derivative of the transmission power adjustment with respect to the number of resources is less than 0.
The specific manner of how to reflect the difference between the resources available for transmitting the target UCI in each PUSCH without including the UL-SCH in the transmission power adjustment amount Δ may not be limited here. It is sufficient that the transmission power adjustment amount and the resource available for transmitting the target UCI are inversely correlated.
Preferably, the resource number is the number of modulation symbols used for UCI transmission in the transmission resource of the r-th PUSCH, and for the r-th time in the M times of "actual PUSCH", the number Q of coded modulation symbols available for UCI transmissionr' is:
wherein
Is the number of time symbols included in the r-th PUSCH,is the number of REs available for UCI transmission on time symbol l. In general, the DMRS is transmitted on time symbols carrying the DMRS,
on the time symbols not carrying the DMRS,
wherein
Is the number of subcarriers used to carry the Phase-tracking reference signal PTRS (Phase-tracking reference signal) on time symbol l; or, the resource number is the number of time domain symbols for UCI transmission in the transmission resource of the r-th PUSCH
The step of determining the transmission power adjustment amount of the r-th PUSCH according to the number of resources available for transmitting UCI in the r-th PUSCH further includes step 21 or step 22, where an adjustment coefficient is defined, and since the number of resources available for transmitting UCI in each of the M PUSCHs may be different, the transmission power adjustment amount of the r-th PUSCH is determined according to the adjustment coefficient of the r-th PUSCH.
Step 21, determining an adjustment coefficient according to the number of resources available for transmitting UCI in the r-th PUSCH, wherein the adjustment coefficient is positively correlated with the number of resources; the adjustment coefficient acts on the transmission power adjustment amount, and the transmission power adjustment amount is inversely related to the adjustment coefficient.
The transmission power adjustment amount is inversely related to the adjustment coefficient, and means that the transmission power adjustment amount is opposite to the change direction of the adjustment coefficient value, for example, the transmission power adjustment amount decreases as the adjustment coefficient increases, or the transmission power adjustment amount increases as the adjustment coefficient decreases. Or, if the transmission power adjustment is expressed as a function of the adjustment coefficient, the derivative of the transmission power adjustment with respect to the adjustment coefficient is less than 0.
The adjustment coefficient of the r PUSCH is positively correlated with the number of resources which can be used for transmitting UCI in the r PUSCH. That is, the more resources available for transmitting the target UCI, the larger the adjustment coefficient corresponding to the PUSCH is, the smaller Δ is; the less resources available for transmitting the target UCI, the smaller the adjustment coefficient corresponding to the PUSCH is, the larger Δ is. Specifically, the adjustment coefficient of the r-th PUSCH is proportional to the number of resources available for transmitting UCI in the r-th PUSCH.
Preferably, the adjustment coefficient is the number Q of modulation symbols used for UCI transmission in the transmission resource of the r-th PUSCHr′；
Or, the adjusting coefficient is the number of time domain symbols for UCI transmission in the transmission resource of the r-th PUSCH
Step 22, determining an adjustment coefficient according to the number of resources available for transmitting UCI in the r-th PUSCH, wherein the adjustment coefficient is inversely related to the number of resources; the adjustment coefficient acts on the transmission power adjustment amount, and the transmission power adjustment amount is positively correlated with the adjustment coefficient.
The term "positive correlation" in this document means that the direction of change of the values is the same, for example, the transmission power adjustment amount increases as the adjustment coefficient increases, or the transmission power adjustment amount decreases as the adjustment coefficient decreases. Or, if the transmission power adjustment is expressed as a function of the adjustment coefficient, the derivative of the transmission power adjustment with respect to the adjustment coefficient is greater than 0.
The adjustment coefficient of the r PUSCH is inversely related to the number of resources available for transmitting UCI in the r PUSCH. That is, the more resources available for transmitting the target UCI, the smaller the adjustment coefficient corresponding to the PUSCH is, the smaller Δ is; the less resources available for transmitting the target UCI, the larger the adjustment coefficient corresponding to the PUSCH is, the larger Δ is. Specifically, the adjustment coefficient of the r-th PUSCH is inversely proportional to the number of resources available for transmitting UCI in the r-th PUSCH.
The r PUSCH adjustment coefficient may specifically be, but is not limited to, any of the following (1) to (4):
(1) the adjustment coefficients are the number of modulation symbols Q' for UCI transmission in the transmission resource of PUSCH used as reference and the number of modulation symbols Q for UCI transmission in the transmission resource of the r-th PUSCHrThe ratio of, i.e.:
let reference PUSCH be the lth of M PUSCHs, L ═ 1, or the value of L is preset. Alternatively, the transmission resource of the reference PUSCH is determined by a resource allocation field in the scheduling information. For example, the number of time symbols of PUSCH is indicated by the resource allocation field in the scheduling informationThe number of modulation symbols for UCI transmission in the transmission resource of the reference PUSCH is:
(2) the adjusting coefficient is the ratio of the number of time symbols indicated by the resource allocation field in the scheduling information to the number of time domain symbols for UCI transmission in the transmission resource of the r-th PUSCH.
The r PUSCH adjustment coefficient is
(3) The adjustment coefficient is a coding rate R' of transmission of UCI in the R-th PUSCH.
And the coding rate of transmitting UCI in the r PUSCH is determined by the number of information bits of the UCI and the number of coded information bits which can be carried by the r PUSCH, and the number of coded information bits which can be carried by the r PUSCH is determined by the number of resources included in the r PUSCH.
Here, the coding rate for transmitting UCI in the r-th PUSCH is inversely proportional to the number of resources included in the r-th PUSCH.
(4) The adjusting coefficient is the ratio of the coding rate of transmitting UCI in the r-th PUSCH and the coding rate indicated by the resource allocation field in the scheduling information.
And the ratio of the UCI coding rate transmitted in the transmission resource of the reference PUSCH to the UCI coding rate transmitted in the transmission resource of the r-th PUSCH. The reference PUSCH is the lth of the M PUSCHs, L ═ 1, or the value of L is preset. Alternatively, the transmission resource of the reference PUSCH is determined by a resource allocation field in the scheduling information. For example, a resource allocation field in the scheduling information indicates that a target coding rate for transmitting UCI in PUSCH is R, and a coding rate for transmitting UCI in transmission resource of the R-th PUSCH is R', the R-th PUSCH adjustment coefficient is:
in steps 21 to 22, for example, the transmission power adjustment amount is:
wherein BPRE is a modified BPRE value, said modification BThe PRE value is an arbitrary function of the BPRE value and the adjustment factor, and the improved BPRE value is positively correlated with the BPRE value; if the adjustment factor is positively correlated (e.g., proportional) to the number of resources, then the improved BPRE value and adjustment factor are negatively correlated; if the adjustment factor and the number of resources are negatively correlated (e.g., inversely proportional), then the improved BPRE value and adjustment factor are positively correlated; wherein
The BPRE values are all configured values of the 3GPP TS38.213V15.6.0 standard.
Preferably, when the transmission power adjustment amount is positively correlated with the adjustment coefficient, the adjustment coefficient is used for BPRE weighted product to calculate the transmission power adjustment amount. For example, take
That is, here the modified BPRE value is the product of the BPRE value and the adjustment coefficient:
BPRE*＝ρ·BPRE (9)
and step 30, adjusting and transmitting the transmission power of the r PUSCH.
According to the above 10 and 20, the terminal device may determine the transmission power adjustment amount of the r-th PUSCH and determine the transmission power of the r-th PUSCH. According to the respective transmission power adjustment amounts of the M PUSCHs and the respective other transmission power decision factors, the terminal device can determine the respective transmission powers of the M PUSCHs.
The transmission power P of the terminal device is determined by a plurality of factors, and the transmission power adjustment amount is one of the factors. Besides, the power P of the PUSCH transmitted by the terminal device is also related to factors such as path loss, path compensation factor, power adjustment control command word transmitted in downlink control information, and operating point of open-loop transmission power control.
Fig. 3 is a diagram of an embodiment of a mobile terminal according to the present invention.
The present application further provides a mobile terminal device 50, configured to implement any one of the method embodiments of the present application, where the mobile terminal is configured to repeatedly send UCI in M PUSCHs according to an indication of scheduling information, where the M PUSCHs do not include UL-SCH;
the mobile terminal is further configured to adjust the transmission power of an r-th PUSCH according to the number of resources available for UCI transmission in the r-th PUSCH (r is less than or equal to M), where the transmission power adjustment amount is inversely related to the number of resources.
The mobile terminal device comprises a receiving module 51, a determining module 52 and a sending module 53.
The receiving module is used for acquiring scheduling information, determining that the target UCI is repeatedly transmitted in M PUSCHs according to the scheduling information, and the M PUSCHs do not comprise UL-SCH respectively
The determining module is configured to adjust the transmission power of an r-th PUSCH according to the number of resources available for UCI transmission in the r-th PUSCH (r is less than or equal to M), where the transmission power adjustment amount is inversely related to the number of resources.
The determining module is further configured to determine an adjustment factor, wherein the adjustment factor is positively correlated (e.g., directly proportional) or negatively correlated (e.g., inversely proportional) to the number of resources, and is used to improve the BPRE, and then obtain the transmission power adjustment amount.
And the transmitting module adjusts and transmits the transmitting power of the r-th PUSCH according to the transmitting power adjustment amount.
The r PUSCH adjustment coefficient may be, but is not limited to, any of the following:
number Q of modulation symbols available for UCI transmission in transmission resources of the r-th PUSCHr', or the number of time domain symbols;
the number Q' of modulation symbols for UCI transmission in the transmission resources of the reference PUSCH and the number Q of modulation symbols available for UCI transmission in the transmission resources of the r-th PUSCHr' ratio;
the ratio of the number of time symbols indicated by the resource allocation field in the scheduling information to the number of time domain symbols for UCI transmission in the transmission resource of the r-th PUSCH.
Transmitting UCI coding rate in the r PUSCH, or referring to the ratio of the UCI coding rate transmitted in the transmission resource of the PUSCH to the UCI coding rate transmitted in the transmission resource of the r PUSCH;
here, the reference PUSCH is the lth PUSCH among the M PUSCHs, L is 1, or the value of L is preset, or the transmission resource of the reference PUSCH is determined by a resource allocation field in the scheduling information.
The technical features of any one of the method embodiments of the present application are applicable to the terminal device of the present application, and are not described herein again.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (12)
1. A method for determining the transmission power of a physical uplink shared channel (PUCCH) is characterized by comprising the following steps:
according to the indication of the scheduling information, repeatedly transmitting UCI in M PUSCHs, wherein the M PUSCHs do not contain UL-SCH;
and determining the transmission power adjustment amount of the r-th PUSCH according to the number of resources which can be used for transmitting UCI in the r-th (r is less than or equal to M) PUSCH, and adjusting the transmission power of the r-th PUSCH, wherein the transmission power adjustment amount is inversely related to the number of the resources.
2. The method of claim 1, wherein the step of determining the transmission power adjustment amount for the r-th PUSCH according to the number of resources available for UCI transmission in the r-th PUSCH further comprises:
determining an adjustment coefficient according to the number of resources available for transmitting UCI in the r-th PUSCH, wherein the adjustment coefficient is positively correlated with the number of resources;
the adjustment coefficient acts on the transmission power adjustment amount, and the transmission power adjustment amount is inversely related to the adjustment coefficient.
3. The method of claim 1, wherein the step of determining the transmission power adjustment amount for the r-th PUSCH according to the number of resources available for UCI transmission in the r-th PUSCH further comprises:
determining an adjustment coefficient according to the number of resources available for transmitting UCI in the r-th PUSCH, wherein the adjustment coefficient is inversely related to the number of resources;
the adjustment coefficient acts on the transmission power adjustment amount, and the transmission power adjustment amount is positively correlated with the adjustment coefficient.
4. The method of claim 1,
the number of resources is:
the number of modulation symbols for UCI transmission in the transmission resource of the r-th PUSCH, or
The number of time domain symbols for UCI transmission in the transmission resource of the r-th PUSCH.
5. The method of claim 2,
the adjustment coefficients are:
the number of modulation symbols for UCI transmission in the transmission resource of the r-th PUSCH, or
The number of time domain symbols for UCI transmission in the transmission resource of the r-th PUSCH.
6. The method of claim 3,
the adjustment coefficient is a ratio of the number of modulation symbols for UCI transmission in the transmission resource of the PUSCH used as a reference to the number of modulation symbols for UCI transmission in the transmission resource of the r-th PUSCH.
7. The method of claim 3,
the adjusting coefficient is the ratio of the number of time symbols indicated by the resource allocation field in the scheduling information to the number of time domain symbols for UCI transmission in the transmission resource of the r-th PUSCH.
8. The method of claim 3,
the adjustment coefficient is a coding rate of transmitting UCI in the r-th PUSCH.
9. The method of claim 3,
the adjusting coefficient is the ratio of the coding rate of transmitting UCI in the r-th PUSCH and the coding rate indicated by the resource allocation field in the scheduling information.
10. The method of any of claims 1-9, wherein the transmit power adjustment is by an amountWherein BPRE is a modified BPRE value, said modified BPRE value being an arbitrary function of the BPRE value and an adjustment factor, and,
the improved BPRE value is positively correlated with the BPRE value;
if the adjustment factor is positively correlated with the number of resources, the improved BPRE value and the adjustment factor are negatively correlated;
if the adjustment factor and the number of resources are negatively correlated, the improved BPRE value and the adjustment factor are positively correlated;
Ks，
the BPRE values are all configured values of the 3GPP TS38.213V15.6.0 standard.
11. The method according to any one of claims 6 to 7, 9,
the adjusting coefficient is used for BPRE weighted product and calculating the transmitting power adjusting quantity.
12. A mobile terminal device for use in the method of any one of claims 1 to 11,
the mobile terminal is configured to repeatedly send UCI in M PUSCHs according to an indication of scheduling information, where the M PUSCHs do not include UL-SCH;
the mobile terminal is further configured to adjust the transmission power of an r-th PUSCH according to the number of resources available for UCI transmission in the r-th PUSCH (r is less than or equal to M), where the transmission power adjustment amount is inversely related to the number of resources.
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