CN110351048B - Method, system and mobile terminal for uplink transmission in power transient scene - Google Patents
Method, system and mobile terminal for uplink transmission in power transient scene Download PDFInfo
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- CN110351048B CN110351048B CN201810301029.1A CN201810301029A CN110351048B CN 110351048 B CN110351048 B CN 110351048B CN 201810301029 A CN201810301029 A CN 201810301029A CN 110351048 B CN110351048 B CN 110351048B
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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
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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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
- H04W52/30—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
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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
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
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Abstract
The invention provides a method, a system and a mobile terminal for uplink transmission in a power transient scene, wherein the method comprises the following steps: setting a priority list in advance according to a physical channel or a reference signal carried on a symbol; acquiring power transient information corresponding to a process of changing transmission power on continuous symbols; and according to the power transient information, judging not to send at least one first symbol corresponding to the physical channel or the reference signal with low bearing priority for uplink transmission according to the priority list, or increasing or decreasing the power of at least one second symbol corresponding to the physical channel or the reference signal with low bearing priority for uplink transmission according to the priority list. The invention can ensure that the power transient does not occur in the symbol corresponding to the physical channel or the reference signal bearing the high priority, improve the performance of the network and optimize the uplink transmission method.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a method, a system and a mobile terminal for uplink transmission in a power transient scene.
Background
In a 5G NR (New Radio over air) system, a terminal may transmit different physical channels or reference signals on different symbols of the same timeslot, and the transmission powers of the different physical channels or reference signals may be different. When a terminal changes transmission power on consecutive symbols, a transient time (transition time) is required for adjusting power at a Radio Frequency (RF) end, wherein the transient time is 10 μ s in FR1(Frequency Range 1,450MHz-6GHz) and 5 μ s in FR2(Frequency Range 2,24.250-52.600 GHz). During the so-called transient time, the power at the radio frequency end is adjusted from one value to another. When the uplink transmission data of the terminal adopts the subcarrier spacing of 60KHz/120KHz, the length of one symbol is about 17.85 mus/8.93 mus.
However, as shown in fig. 3 and 4, for a symbol with a length of 17.85 μ s, if the power of the terminal changes twice on three consecutive symbols, the rf side adjusts the power on a portion with a length of 10 μ s on one of the symbols, which results in poor performance of the symbol, and if an orthogonal code is used on the symbol, orthogonality on the symbol cannot be guaranteed.
Similarly, for a symbol with a length of 8.93 μ s, if the power of the terminal changes twice on three consecutive symbols, the rf terminal adjusts the power on a portion with a length of 5 μ s on one of the symbols, which also results in poor performance of the symbol, and if an orthogonal code is used on the symbol, orthogonality on the symbol cannot be guaranteed.
Meanwhile, a terminal transmits different physical channels or Reference signals on two consecutive time slots, wherein a demodulation Reference signal (dmrs) is transmitted on a first symbol on the latter time slot. Similarly, the above problems also exist. And the power hopping on the DMRS symbols can affect the performance of the DMRS, so that the demodulation performance of a subsequent channel is affected.
However, uplink power control needs to be both powerful enough to guarantee the link quality of uplink transmission, powerful enough to reduce interference to other users, and long enough to guarantee battery operation time. Therefore, in the prior art, simply dropping a channel or a symbol in a certain position cannot meet the uplink transmission requirement, and the network performance is also seriously affected.
Disclosure of Invention
The method, the system and the mobile terminal for uplink transmission in the power transient scene can ensure that the power transient does not occur in a symbol corresponding to a physical channel or a reference signal bearing high priority, improve the performance of a network and optimize an uplink transmission method.
In a first aspect, the present invention provides a method for uplink transmission in a power transient scenario, including:
setting a priority list in advance according to a physical channel or a reference signal carried on a symbol;
acquiring power transient information corresponding to a process of changing transmission power on continuous symbols;
and according to the power transient information, judging not to send at least one first symbol corresponding to the physical channel or the reference signal with low bearing priority for uplink transmission according to the priority list, or increasing or decreasing the power of at least one second symbol corresponding to the physical channel or the reference signal with low bearing priority for uplink transmission according to the priority list.
Optionally, the physical channels or reference signals carried on the symbols in the priority list are sorted in descending order as:
a physical uplink channel for obtaining channel feedback information;
a physical uplink channel or a first reference signal for obtaining channel state information;
a physical uplink channel or a related demodulation reference signal for data transmission;
the physical uplink channel includes a physical uplink control channel or a physical uplink shared channel, and the first reference signal includes an aperiodic sounding reference signal.
Optionally, according to the power transient information, judging to drop and not send a first symbol corresponding to at least one physical channel or reference signal with a low bearer priority for uplink transmission according to the priority list, or increasing or decreasing the power of a second symbol corresponding to at least one physical channel or reference signal with a low bearer priority for uplink transmission according to the priority list includes:
judging whether power transient continuously occurs for M times on continuous N symbols according to the power transient information; n, M are all natural numbers more than or equal to 1, and N is more than M;
when power transient on continuous N symbols continuously occurs for M times, judging and throwing away a first symbol which does not send at least one physical channel or reference signal with low bearing priority for uplink transmission according to the priority list, or increasing or decreasing the power of a second symbol which corresponds to at least one physical channel or reference signal with low bearing priority for uplink transmission according to the priority list;
and when the power transient does not continuously occur for M times on the continuous N symbols, continuing to perform uplink transmission by the corresponding transmission power of the carried symbols of the physical channel or the reference signal.
Optionally, the increasing or decreasing the power of the second symbol corresponding to the at least one physical channel or reference signal with a low bearer priority according to the priority list for uplink transmission includes:
when the corresponding transmission power of the symbol with lower priority on the continuous symbols is lower than that of the symbol with higher priority on the adjacent symbols, the corresponding transmission power of the symbol with lower priority is increased;
and when the corresponding transmission power of the symbol with lower priority on the continuous symbols is higher than that of the symbol with higher priority on the adjacent symbols, the corresponding transmission power of the symbol with lower priority is reduced.
Optionally, after obtaining the corresponding power transient information in the process of changing the transmission power on the continuous symbols, the method further includes:
when the power transient information judges that power transients occur on two continuous time slots and the first symbol of the next time slot bears the channel demodulation reference signal of the physical uplink shared channel, the transmission power corresponding to the symbol bearing the channel demodulation reference signal of the physical uplink shared channel is increased after the transmission power corresponding to the last symbol bearing the physical channel or the reference signal in the previous time slot is judged to be higher than the first symbol bearing the channel demodulation reference signal of the physical uplink shared channel in the next time slot, so that the transmission power corresponding to the last symbol bearing the physical channel or the reference signal in the previous time slot is equal to the transmission power corresponding to the last symbol bearing the physical channel or the reference signal in the previous time slot and uplink transmission is carried out.
In a second aspect, the present invention provides a system for uplink transmission in a power transient scenario, including:
a priority list setting unit, configured to set a priority list in advance according to a physical channel or a reference signal carried on a symbol;
the device comprises an acquisition unit, a power conversion unit and a power conversion unit, wherein the acquisition unit is used for acquiring corresponding power transient information in the process of changing the transmission power on continuous symbols;
and the first power control unit is used for judging and throwing away a first symbol corresponding to at least one physical channel or reference signal with low bearing priority according to the priority list for uplink transmission or increasing or decreasing the power of a second symbol corresponding to at least one physical channel or reference signal with low bearing priority according to the priority list for uplink transmission according to the power transient information.
Optionally, the first power control unit includes:
the judging module is used for judging whether the power transient continuously occurs for M times on the continuous N symbols according to the power transient information; n, M are all natural numbers more than or equal to 1, and N is more than M;
the first control module is used for judging and throwing away a first symbol which does not send at least one physical channel with low bearing priority or a first symbol corresponding to a reference signal for uplink transmission according to the priority list when power transient continuously occurs for M times on continuous N symbols;
the second control module is used for increasing or decreasing the power of at least one physical channel with low bearing priority or a second symbol corresponding to the reference signal according to the priority list for uplink transmission when power transient continuously occurs for M times on continuous N symbols;
and the third control module is used for continuing to perform uplink transmission by the symbol of the carried physical channel or the reference signal according to the corresponding transmission power when the power transient does not continuously occur for M times on the continuous N symbols.
Optionally, the second control module comprises:
a power increasing submodule, configured to increase the transmission power corresponding to the symbol with the lower priority when the transmission power corresponding to the symbol with the lower priority on consecutive symbols is lower than the transmission power corresponding to the symbol with the higher priority on adjacent symbols;
and the power reduction submodule is used for reducing the corresponding transmission power of the symbol with lower priority when the corresponding transmission power of the symbol with lower priority on the continuous symbols is higher than the corresponding transmission power of the symbol with higher priority on the adjacent symbols.
Optionally, the system further comprises:
and the second power control unit is used for increasing the sending power corresponding to the symbol bearing the channel demodulation reference signal of the physical uplink shared channel after judging that the sending power corresponding to the last symbol bearing the physical channel or the reference signal in the previous time slot is higher than the first symbol bearing the channel demodulation reference signal of the physical uplink shared channel in the next time slot when the power transient information judges that the power transient occurs on two continuous time slots and the first symbol of the next time slot bears the channel demodulation reference signal of the physical uplink shared channel, so that the sending power corresponding to the last symbol bearing the physical channel or the reference signal in the previous time slot is equal to the sending power corresponding to the last symbol bearing the physical channel or the reference signal in the previous time slot and uplink transmission is carried out.
In a third aspect, the present invention provides a mobile terminal, where the mobile terminal includes the system for uplink transmission in the power transient scenario.
The method, the system and the mobile terminal for uplink transmission in the power transient scene provided by the embodiment of the invention mainly carry out priority sequencing on the symbols according to the corresponding content, action and importance of the physical channels or the reference signals borne by the symbols to form a priority list, and then select not to send some physical channels or first symbols corresponding to the reference signals with low bearing priority according to the corresponding power transient information in the process of changing the sending power on the continuous symbols; or increasing or decreasing some second symbols corresponding to the physical channels or the reference signals with low bearing priority, so that the corresponding power of the symbols with low bearing priority is equal to the corresponding power of the symbols with high priority, thereby ensuring that power transient does not occur in the symbols corresponding to the physical channels or the reference signals with high bearing priority, improving the performance of the network and optimizing the uplink transmission method.
Drawings
Fig. 1 is a flowchart of a method for uplink transmission in a power transient scenario according to an embodiment of the present invention;
FIG. 2 is a flowchart of a method for uplink transmission in a power transient scenario according to another embodiment of the present invention;
FIG. 3 is a diagram illustrating symbol transmission in the same time slot according to an embodiment of the present invention;
FIG. 4 is a diagram illustrating symbol transmission in the same slot according to another embodiment of the present invention;
FIG. 5 is a diagram illustrating symbol transmission for two consecutive slots according to another embodiment of the present invention;
FIG. 6 is a block diagram of a system for uplink transmission in a power transient scenario according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a system for uplink transmission in a power transient scenario according to another embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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.
An embodiment of the present invention provides a method for uplink transmission in a power transient scene, as shown in fig. 1, the method includes:
s11, setting a priority list in advance according to the physical channel or the reference signal carried on the symbol;
s12, acquiring power transient information corresponding to the process of changing the transmission power on the continuous symbols;
and S13, according to the power transient information, judging not to send at least one first symbol corresponding to the physical channel or reference signal with low bearing priority for uplink transmission according to the priority list, or increasing or decreasing the power of at least one second symbol corresponding to the physical channel or reference signal with low bearing priority for uplink transmission according to the priority list.
The method for uplink transmission in a power transient scene provided by the embodiment of the invention mainly carries out priority sequencing on the symbols according to the corresponding content, action and importance of physical channels or reference signals borne by the symbols to form a priority list, and then selects not to send a first symbol corresponding to some physical channels or reference signals with low bearing priority according to power transient information corresponding to the process of changing sending power on continuous symbols; or increasing or decreasing some second symbols corresponding to the physical channels or the reference signals with low bearing priority, so that the corresponding power of the symbols with low bearing priority is equal to the corresponding power of the symbols with high priority, thereby ensuring that power transient does not occur in the symbols corresponding to the physical channels or the reference signals with high bearing priority, improving the performance of the network and optimizing the uplink transmission method.
Optionally, as shown in fig. 2 to 4, the physical channels or reference signals carried on the symbols in the priority list are sorted in descending order as follows:
a physical uplink channel for obtaining channel feedback information;
a physical uplink channel or a first reference signal for obtaining channel state information;
a physical uplink channel or a related demodulation reference signal for data transmission;
the physical uplink channel includes a physical uplink control channel or a physical uplink shared channel, and the first reference signal includes an aperiodic sounding reference signal.
Specifically, the method of this embodiment sequentially determines that the priority of the physical uplink channel for obtaining the channel feedback information is greater than the priority of the physical uplink channel for obtaining the channel state information or the first reference signal; sequencing the physical uplink channels or the first reference signals used for obtaining the channel state information in a sequence with priority higher than that of the physical uplink channels or the relevant demodulation reference signals used for data transmission; for example, when at least one of the symbols transmitting the power transient carries the physical uplink shared channel/physical uplink control channel for transmitting the HARQ-ACK feedback information, the symbol carrying the physical uplink shared channel/physical uplink control channel for transmitting the HARQ-ACK feedback information has the highest priority;
or, when the power transient symbol is transmitted with at least an Aperiodic channel sounding reference signal (Aperiodic SRS) and a physical uplink shared channel/physical uplink control channel (pucch) carrying CSI, the Aperiodic SRS carrying the Aperiodic channel sounding reference signal (Aperiodic SRS) has a higher priority;
or, when at least the physical uplink shared channel/physical uplink control channel carrying the transmission Channel State Information (CSI) and the physical uplink shared channel carrying the transmission beam reporting (beam reporting) are in the symbol with the transient transmission power, the physical uplink shared channel/physical uplink control channel carrying the transmission Channel State Information (CSI) has a higher priority;
or, when the symbol with the transient transmission power at least carries the physical uplink shared channel (beam reporting) and the channel demodulation reference signal of the physical uplink shared channel, the physical uplink shared channel (beam reporting) has a higher priority;
or, when the symbol with transient transmission power at least bears the channel demodulation reference signal of the physical uplink shared channel and the physical uplink shared channel for transmitting data, the channel demodulation reference signal bearing the physical uplink shared channel has higher priority;
or, when at least the physical uplink shared channel carrying the transmission data and the periodic channel sounding reference signal or the semi-persistent channel sounding reference signal (P-SRS/SP-SRS) in the symbol transmitting the power transient, the physical uplink shared channel carrying the transmission data has a higher priority.
Optionally, according to the power transient information, determining not to send a first symbol corresponding to at least one physical channel or reference signal with a low bearer priority for uplink transmission according to the priority list, or increasing or decreasing the power of a second symbol corresponding to at least one physical channel or reference signal with a low bearer priority for uplink transmission according to the priority list includes:
judging whether power transient continuously occurs for M times on continuous N symbols according to the power transient information; n, M are all natural numbers more than or equal to 1, and N is more than M;
when power transient on continuous N symbols continuously occurs for M times, judging and throwing away a first symbol which does not send at least one physical channel or reference signal with low bearing priority for uplink transmission according to the priority list, or increasing or decreasing the power of a second symbol which corresponds to at least one physical channel or reference signal with low bearing priority for uplink transmission according to the priority list;
and when the power transient does not continuously occur for M times on the continuous N symbols, continuing to perform uplink transmission by the corresponding transmission power of the carried symbols of the physical channel or the reference signal.
Specifically, the method of this embodiment may directly select not to send (or drop) one or more first symbols corresponding to the physical channel or reference signal with the low bearer priority according to that the power transient continuously occurs M times on the consecutive N symbols, and further ensure that the power transient does not occur on the symbol corresponding to the physical channel or reference signal with the high bearer priority, thereby improving the performance of the network.
For example, when the power transient occurs 2 times continuously over 3 consecutive symbols, the third symbol corresponding to two physical channels or reference signals with the highest or higher bearing priority is transmitted, and the first symbol corresponding to one physical channel or reference signal with the lower bearing priority is not transmitted.
Or, when power transient occurs 4 times continuously on 5 continuous symbols, sending two third symbols corresponding to the physical channel or reference signal with highest or higher bearing priority, and not sending a first symbol corresponding to the physical channel or reference signal with low bearing priority; or sending three third symbols corresponding to the physical channels or the reference signals with the highest or higher bearing priority, and not sending a first symbol corresponding to the physical channel or the reference signal with the low bearing priority.
Optionally, as shown in fig. 4, the increasing or decreasing the power of the second symbol corresponding to the at least one physical channel or reference signal with a low bearer priority according to the priority list for uplink transmission includes:
when the corresponding transmission power of the second symbol with lower priority on the continuous symbols is lower than the corresponding transmission power of the adjacent symbol with higher priority, the corresponding transmission power of the second symbol with lower priority is increased;
or, when the transmission power corresponding to the second symbol with lower priority is higher than the transmission power corresponding to the adjacent symbol with higher priority on the continuous symbols, the transmission power corresponding to the second symbol with lower priority is reduced.
Specifically, the method of this embodiment may further select to reserve all symbols, and only increase or decrease the power of the second symbol corresponding to at least one physical channel or reference signal with a low bearer priority according to the priority list, for example, as shown in fig. 4, decrease the transmission power of the SRS symbol at an arrow; and further, the power transient is not generated in the symbol corresponding to the physical channel or the reference signal bearing the high priority, and the performance of the network is improved.
The method can also select the two modes (i.e. throwing away and not sending the first symbol, and increasing or decreasing the power corresponding to the second symbol) through the comparison of the performances, so that the performance of the affiliated network is optimized.
Optionally, after obtaining the corresponding power transient information in the process of changing the transmission power on the continuous symbols, the method further includes:
when the power transient information judges that power transients occur on two continuous time slots and the first symbol of the next time slot bears the channel demodulation reference signal of the physical uplink shared channel, the transmission power corresponding to the symbol bearing the channel demodulation reference signal of the physical uplink shared channel is increased after the transmission power corresponding to the last symbol bearing the physical channel or the reference signal in the previous time slot is judged to be higher than the first symbol bearing the channel demodulation reference signal of the physical uplink shared channel in the next time slot, so that the transmission power corresponding to the last symbol bearing the physical channel or the reference signal in the previous time slot is equal to the transmission power corresponding to the last symbol bearing the physical channel or the reference signal in the previous time slot and uplink transmission is carried out.
Specifically, as shown in fig. 5, in the method of this embodiment, power transient information corresponding to a process of changing transmission power on consecutive symbols can be first obtained, then power transients occur on two consecutive time slots, and when a first symbol of a subsequent time slot carries a DMRS (channel demodulation reference signal), if the power of a physical channel or a reference signal carried on a last symbol of a previous time slot is higher than that of the first symbol of the subsequent time slot, the power of a symbol where the DMRS is located is increased to be equal to the power of the previous symbol; and further, the power transient between two continuous time slots is ensured not to occur in the symbol corresponding to the physical channel or the reference signal bearing high priority, and the performance of the network is improved.
An embodiment of the present invention further provides a system for uplink transmission in a power transient scene, as shown in fig. 6, the system includes:
a priority list setting unit 11, configured to set a priority list in advance according to a physical channel or a reference signal carried on a symbol;
an obtaining unit 12, configured to obtain power transient information corresponding to a process of changing transmission power on consecutive symbols;
and a first power control unit 13, configured to determine, according to the power transient information, to drop and not send a first symbol corresponding to at least one physical channel or reference signal with a low bearer priority for uplink transmission according to the priority list, or increase or decrease power of a second symbol corresponding to at least one physical channel or reference signal with a low bearer priority for uplink transmission according to the priority list.
The system for uplink transmission in a power transient scene provided by the embodiment of the present invention is mainly characterized in that a priority list setting unit 11 performs priority ordering on a physical channel or a reference signal carried on a symbol according to corresponding content, action and importance thereof to form a priority list, and then an obtaining unit 12 and a first power control unit 13 select not to send some physical channels with low carrying priority or first symbols corresponding to the reference signal according to power transient information corresponding to a process of changing transmission power on continuous symbols; or the second symbol corresponding to some physical channels or reference signals with low bearing priority is increased or decreased, so that the power corresponding to the symbol with low priority is equal to the power corresponding to the symbol with high priority, and further, the power transient is not generated in the symbol corresponding to the physical channel or reference signal with high priority, the network performance is improved, and the uplink transmission system is optimized.
Optionally, as shown in fig. 7, the first power control unit includes:
the judging module 131 is configured to judge whether a power transient continuously occurs M times on consecutive N symbols according to the power transient information; n, M are all natural numbers more than or equal to 1, and N is more than M;
a first control module 132, configured to, when power transients occur M times continuously on consecutive N symbols, determine to discard, according to the priority list, that a first symbol corresponding to at least one physical channel or reference signal with a low bearer priority is not sent for uplink transmission;
a second control module 133, configured to, when power transients occur M times continuously on consecutive N symbols, increase or decrease the power of a second symbol corresponding to at least one physical channel or reference signal with a low bearer priority according to the priority list for uplink transmission;
and a third control module 134, configured to, when the power transient does not occur M times continuously over consecutive N symbols, continue uplink transmission with the corresponding transmission power by the symbol of the carried physical channel or reference signal.
Optionally, the second control module 133 includes:
a power increasing submodule 1331, configured to increase the transmission power corresponding to the symbol with the lower priority when the transmission power corresponding to the symbol with the lower priority on the consecutive symbols is lower than the transmission power corresponding to the symbol with the higher priority on the adjacent symbols;
a power reduction sub-module 1332, configured to reduce the transmission power corresponding to the symbol with lower priority when the transmission power corresponding to the symbol with lower priority on consecutive symbols is higher than the transmission power corresponding to the symbol with higher priority on the neighboring symbols.
Optionally, the system further comprises:
and a second power control unit 14, configured to, when it is determined from the power transient information that power transients occur in two consecutive time slots and the first symbol of the subsequent time slot carries the channel demodulation reference signal of the physical uplink shared channel, increase the transmission power corresponding to the symbol carrying the channel demodulation reference signal of the physical uplink shared channel after determining that the transmission power corresponding to the last symbol carrying the physical channel or the reference signal in the previous time slot is higher than the first symbol carrying the channel demodulation reference signal of the physical uplink shared channel in the subsequent time slot, so that the transmission power corresponding to the last symbol carrying the physical channel or the reference signal in the previous time slot is equal to the transmission power corresponding to the last symbol carrying the physical channel or the reference signal in the previous time slot, and perform uplink transmission.
The system of this embodiment may be configured to implement the technical solutions of the method embodiments, and the implementation principles and technical effects are similar, which are not described herein again.
The embodiment of the invention also provides a mobile terminal which comprises the system for the uplink transmission under the power transient scene.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A method for uplink transmission in a power transient scene, comprising:
setting a priority list in advance according to a physical channel or a reference signal carried on a symbol;
acquiring power transient information corresponding to a process of changing transmission power on continuous symbols;
according to the power transient information, judging not to send at least one first symbol corresponding to the physical channel or the reference signal with low bearing priority for uplink transmission according to the priority list, or increasing or decreasing the power of at least one second symbol corresponding to the physical channel or the reference signal with low bearing priority for uplink transmission according to the priority list;
the judging, according to the priority list, not to send a first symbol corresponding to at least one physical channel or reference signal with a low bearer priority for uplink transmission or increasing or decreasing the power of a second symbol corresponding to at least one physical channel or reference signal with a low bearer priority for uplink transmission according to the priority list according to the power transient information includes: judging whether power transient continuously occurs for M times on continuous N symbols according to the power transient information; n, M are all natural numbers more than or equal to 1, and N is more than M; when power transient on continuous N symbols continuously occurs for M times, judging and throwing away a first symbol which does not send at least one physical channel or reference signal with low bearing priority for uplink transmission according to the priority list, or increasing or decreasing the power of a second symbol which corresponds to at least one physical channel or reference signal with low bearing priority for uplink transmission according to the priority list; and when the power transient does not continuously occur for M times on the continuous N symbols, continuing to perform uplink transmission by the transmission power corresponding to the symbol of the carried physical channel or reference signal.
2. The method according to claim 1, wherein the physical channels or reference signals carried on the symbols in the priority list are sorted in descending order as:
a physical uplink channel for obtaining channel feedback information;
a physical uplink channel or a first reference signal for obtaining channel state information;
a physical uplink channel or a related demodulation reference signal for data transmission;
the physical uplink channel includes a physical uplink control channel or a physical uplink shared channel, and the first reference signal includes an aperiodic sounding reference signal.
3. The method according to claim 2, wherein the increasing or decreasing the power of the second symbol corresponding to the at least one physical channel or reference signal with a low bearer priority according to the priority list for uplink transmission comprises:
when the corresponding transmission power of the symbol with lower priority on the continuous symbols is lower than that of the symbol with higher priority on the adjacent symbols, the corresponding transmission power of the symbol with lower priority is increased;
and when the corresponding transmission power of the symbol with lower priority on the continuous symbols is higher than that of the symbol with higher priority on the adjacent symbols, the corresponding transmission power of the symbol with lower priority is reduced.
4. The method of claim 1, wherein after said obtaining corresponding power transient information during the changing of transmit power over successive symbols, the method further comprises:
when the power transient information judges that power transients occur on two continuous time slots and the first symbol of the next time slot bears the channel demodulation reference signal of the physical uplink shared channel, the transmission power corresponding to the symbol bearing the channel demodulation reference signal of the physical uplink shared channel is increased after the transmission power corresponding to the last symbol bearing the physical channel or the reference signal in the previous time slot is judged to be higher than the first symbol bearing the channel demodulation reference signal of the physical uplink shared channel in the next time slot, so that the transmission power corresponding to the last symbol bearing the physical channel or the reference signal in the previous time slot is equal to the transmission power corresponding to the last symbol bearing the physical channel or the reference signal in the previous time slot and uplink transmission is carried out.
5. A system for uplink transmission in a power transient scenario, comprising:
a priority list setting unit, configured to set a priority list in advance according to a physical channel or a reference signal carried on a symbol;
the device comprises an acquisition unit, a power conversion unit and a power conversion unit, wherein the acquisition unit is used for acquiring corresponding power transient information in the process of changing the transmission power on continuous symbols;
the first power control unit is used for judging not to send at least one first symbol corresponding to a physical channel or a reference signal with low bearing priority for uplink transmission according to the priority list or increasing or decreasing the power of at least one second symbol corresponding to a physical channel or a reference signal with low bearing priority for uplink transmission according to the priority list;
the first power control unit includes: the judging module is used for judging whether the power transient continuously occurs for M times on the continuous N symbols according to the power transient information; n, M are all natural numbers more than or equal to 1, and N is more than M; the first control module is used for judging and throwing away a first symbol which does not send at least one physical channel with low bearing priority or a first symbol corresponding to a reference signal for uplink transmission according to the priority list when power transient continuously occurs for M times on continuous N symbols; the second control module is used for increasing or decreasing the power of at least one physical channel with low bearing priority or a second symbol corresponding to the reference signal according to the priority list for uplink transmission when power transient continuously occurs for M times on continuous N symbols; and the third control module is used for continuing to perform uplink transmission by the symbol of the carried physical channel or the reference signal according to the corresponding transmission power when the power transient does not continuously occur for M times on the continuous N symbols.
6. The system of claim 5, wherein the second control module comprises:
a power increasing submodule, configured to increase the transmission power corresponding to the symbol with the lower priority when the transmission power corresponding to the symbol with the lower priority on consecutive symbols is lower than the transmission power corresponding to the symbol with the higher priority on adjacent symbols;
and the power reduction submodule is used for reducing the corresponding transmission power of the symbol with lower priority when the corresponding transmission power of the symbol with lower priority on the continuous symbols is higher than the corresponding transmission power of the symbol with higher priority on the adjacent symbols.
7. The system of claim 5, further comprising:
and the second power control unit is used for increasing the sending power corresponding to the symbol bearing the channel demodulation reference signal of the physical uplink shared channel after judging that the sending power corresponding to the last symbol bearing the physical channel or the reference signal in the previous time slot is higher than the first symbol bearing the channel demodulation reference signal of the physical uplink shared channel in the next time slot when the power transient information judges that the power transient occurs on two continuous time slots and the first symbol of the next time slot bears the channel demodulation reference signal of the physical uplink shared channel, so that the sending power corresponding to the last symbol bearing the physical channel or the reference signal in the previous time slot is equal to the sending power corresponding to the last symbol bearing the physical channel or the reference signal in the previous time slot and uplink transmission is carried out.
8. A mobile terminal, characterized in that the mobile terminal comprises a system for uplink transmission in a power transient scenario according to any of claims 5 to 7.
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