CN108605294A - Transmit method, user equipment, base station and the device of uplink information - Google Patents

Transmit method, user equipment, base station and the device of uplink information Download PDF

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Publication number
CN108605294A
CN108605294A CN201680081006.3A CN201680081006A CN108605294A CN 108605294 A CN108605294 A CN 108605294A CN 201680081006 A CN201680081006 A CN 201680081006A CN 108605294 A CN108605294 A CN 108605294A
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Prior art keywords
pusch
uplink information
transmission power
detection threshold
user equipment
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CN201680081006.3A
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Chinese (zh)
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闫志宇
官磊
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Huawei 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
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink

Abstract

The invention discloses a kind of method, user equipment, base station and the device of transmission uplink information, this method includes：User equipment determines the transmission power of Physical Uplink Shared Channel PUSCH；The user equipment determines the transmission power of the demodulated reference signal DMRS for demodulating the PUSCH, and the transmission power of the PUSCH and the transmission power of the DMRS are unequal；The user equipment sends the PUSCH and the DMRS respectively according to the transmission power of the PUSCH and the transmission power of the DMRS.Method, user equipment, base station and the device of the embodiment of the present invention can use different transmission powers to send the PUSCH and DMRS for demodulating the PUSCH, improve the performance of channel estimation.

Description

Method, user equipment, base station and device for transmitting uplink information Technical Field
The present invention relates to the field of communications, and in particular, to a method, a user equipment, a base station, and an apparatus for transmitting uplink information in the field of communications.
Background
In a Long Term Evolution (LTE) system, LTE devices are applied to unlicensed spectrum, which not only can effectively utilize unlicensed spectrum resources, but also can provide more effective wireless access and meet the increasing demand for mobile broadband services.
A user equipment (ue) transmits a Physical Uplink Shared Channel (PUSCH) and a Demodulation Reference Signal (DMRS) for demodulating the PUSCH on a licensed spectrum, multiplexes the same Frequency resources in a Time Division Multiplexing (TDM) manner, and occupies different Orthogonal Frequency Division Multiplexing (OFDM) symbols in a time domain. That is, the frequency resources occupied by the PUSCH and the DMRS are the same, and the transmission power of the user equipment on the symbol of the PUSCH is the same as the transmission power of the DMRS corresponding to the PUSCH.
When the user equipment sends data on the license-free frequency spectrum, a resource allocation mode of multiple clusters of frequency resources is adopted, so that the sending power of uplink data can be met, and the requirement of the coverage area of the user equipment can be met. However, for the resource allocation manner of multiple clusters of frequency resources on the carrier of the unlicensed spectrum, the frequency resources occupied by the DMRS used for demodulating the PUSCH and transmitted by the user equipment may need to be wider than the frequency resources occupied by the PUSCH to ensure the accuracy of channel estimation and the demodulation performance of data on the PUSCH channel.
Disclosure of Invention
Therefore, the invention provides a method, user equipment, a base station and a device for transmitting uplink information, which can adopt different transmission powers to transmit the PUSCH and the DMRS for demodulating the PUSCH, thereby improving the performance of channel estimation.
In a first aspect, a method for transmitting uplink information is provided, where the method includes: the method comprises the steps that user equipment determines the sending power of a Physical Uplink Shared Channel (PUSCH); the user equipment determines the transmission power of a demodulation reference signal (DMRS) for demodulating the PUSCH, wherein the transmission power of the PUSCH is not equal to the transmission power of the DMRS; and the user equipment respectively transmits the PUSCH and the DMRS according to the transmission power of the PUSCH and the transmission power of the DMRS.
The PUSCH and the DMRS used for demodulating the PUSCH can be transmitted by adopting different transmission powers, so that the performance of channel estimation is improved.
With reference to the first aspect, in a first possible implementation manner of the first aspect, the sending, by the user equipment, the PUSCH and the DMRS according to the transmission power of the PUSCH and the transmission power of the DMRS respectively includes: the user equipment determines a target energy detection threshold value according to the transmission power of the PUSCH and the transmission power of the DMRS; the user equipment determines whether the unlicensed spectrum resources for transmitting the PUSCH and the DMRS are idle or not according to the target energy detection threshold value and a detection rule whether the unlicensed spectrum resources are idle or not; and when determining that the unlicensed spectrum resource is idle, the user equipment respectively transmits the PUSCH and the DMRS according to the transmission power of the PUSCH and the transmission power of the DMRS.
By determining the uniform target energy detection threshold value, the LBT rule can be simplified, and therefore the uplink sending efficiency is improved.
With reference to the first implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the determining, by the user equipment, a target energy detection threshold according to the transmission power of the PUSCH and the transmission power of the DMRS includes: determining a first energy detection threshold according to the transmission power of the PUSCH; determining a second energy detection threshold according to the transmission power of the DMRS; and determining a target energy detection threshold value according to the first energy detection threshold value and the second energy detection threshold value, wherein the target energy detection threshold value is not larger than the minimum value of the first energy detection threshold value and the second energy detection threshold value.
With reference to the second implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the first energy detection threshold and the second energy detection threshold are equal.
With reference to the first aspect and any one implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, a ratio of the transmission power of the DMRS to the transmission power of the PUSCH is equal to a ratio of the number of frequency resources occupied by the DMRS on one symbol to the number of frequency resources occupied by the PUSCH on one symbol.
In a second aspect, a method for transmitting uplink information is provided, where the method includes: the method comprises the steps that user equipment determines first uplink information and second uplink information to be sent in the time of at least one uplink subframe; the user equipment determines a power adjustment value according to the number of frequency resources occupied by the first uplink information or the second uplink information; the user equipment determines a first transmission power of the first uplink information and a second transmission power of the second uplink information according to the power adjustment value; and the user equipment respectively sends the first uplink information and the second uplink information according to the first sending power and the second sending power.
By determining the power adjustment value according to the number of frequency resources occupied by the first uplink information or the second uplink information, the data transmission efficiency on the carrier wave of the unlicensed spectrum can be improved under the condition that the number of frequency resources occupied by the first uplink information and the second uplink information is not equal.
With reference to the second aspect, in a first possible implementation manner of the second aspect, the determining, by the ue, a power adjustment value according to the number of frequency resources occupied by the first uplink information or the second uplink information includes: and the user equipment determines the power adjustment value according to the maximum value of the number of the occupied frequency resources in the first uplink information and the second uplink information.
With reference to the second aspect or the first implementation manner of the second aspect, in a second possible implementation manner of the second aspect, the sending, by the ue, the first uplink information and the second uplink information according to the first transmission power and the second transmission power respectively includes: the user equipment determines a target energy detection threshold value according to the first transmission power and the second transmission power; the user equipment determines whether the unlicensed spectrum resource for transmitting the first uplink information and the second uplink information is idle according to the target energy detection threshold value and a detection rule whether the unlicensed spectrum resource is idle; and when determining that the unlicensed spectrum resource is idle, the user equipment respectively sends the first uplink information and the second uplink information according to the first sending power and the second sending power.
By determining the uniform target energy detection threshold value, the LBT rule can be simplified, and therefore the uplink sending efficiency is improved.
With reference to the second implementation manner of the second aspect, in a third possible implementation manner of the second aspect, the determining, by the user equipment, a target energy detection threshold according to the first transmission power and the second transmission power includes: determining a first energy detection threshold based on the first transmit power; determining a second energy detection threshold based on the second transmit power; and determining a target energy detection threshold value according to the first energy detection threshold value and the second energy detection threshold value, wherein the target energy detection threshold value is not larger than the minimum value of the first energy detection threshold value and the second energy detection threshold value.
With reference to the third implementation manner of the second aspect, in a fourth possible implementation manner of the second aspect, the first transmit power and the second transmit power are equal, and the first energy detection threshold and the second energy detection threshold are equal.
With Reference to the second aspect and any one implementation manner of the second aspect, in a fifth possible implementation manner of the second aspect, the first uplink information is a physical uplink shared channel, PUSCH, and the second uplink information is a Sounding Reference Signal (SRS).
In a third aspect, a method for transmitting uplink information is provided, where the method includes: a base station receives a PUSCH sent by user equipment and a DMRS used for demodulating the PUSCH, wherein the sending power of the PUSCH is different from the sending power of the DMRS; and the base station demodulates the PUSCH according to the ratio of the transmission power of the PUSCH and the transmission power of the DMRS.
The base station completes the processes of channel estimation and PUSCH channel demodulation according to the transmitting power of the user equipment for transmitting the DMRS and the transmitting power of the UE for transmitting the PUSCH, and can achieve the purpose of ensuring the performance of channel estimation and the PUSCH data demodulation performance when the UE transmits the DMRS signal which is different from the bandwidth of the PUSCH and is used for demodulating the PUSCH.
In a fourth aspect, a user equipment for transmitting uplink information is provided, where the user equipment is configured to perform the method in the first aspect or any possible implementation manner of the first aspect. In particular, the user equipment comprises means for performing the method of the first aspect or any possible implementation manner of the first aspect.
In a fifth aspect, a user equipment for transmitting uplink information is provided, where the user equipment is configured to perform the method in the second aspect or any possible implementation manner of the second aspect. In particular, the user equipment comprises means for performing the method of the second aspect or any possible implementation of the second aspect.
A sixth aspect provides a base station for transmitting uplink information, configured to perform the method in the third aspect or any possible implementation manner of the third aspect. In particular, the user equipment comprises means for performing the method of the third aspect or any possible implementation manner of the third aspect.
In a seventh aspect, an apparatus is provided, including: memory, processor, transceiver and bus system. Wherein the memory, the processor and the transceiver are connected via the bus system, the memory is configured to store instructions, the processor is configured to execute the instructions stored by the memory to control the transceiver to receive signals or transmit signals, and when the processor executes the instructions stored by the memory, the execution causes the processor to execute the method of the first aspect or any possible implementation manner of the first aspect.
In an eighth aspect, there is provided an apparatus comprising: memory, processor, transceiver and bus system. Wherein the memory, the processor and the transceiver are connected via the bus system, the memory is configured to store instructions, the processor is configured to execute the instructions stored by the memory to control the transceiver to receive signals or transmit signals, and when the processor executes the instructions stored by the memory, the execution causes the processor to execute the method of the second aspect or any possible implementation manner of the second aspect.
In a ninth aspect, there is provided an apparatus comprising: memory, processor, transceiver and bus system. Wherein the memory, the processor and the transceiver are connected via the bus system, the memory is configured to store instructions, the processor is configured to execute the instructions stored by the memory to control the transceiver to receive signals or transmit signals, and when the processor executes the instructions stored by the memory, the execution causes the processor to execute the method of the third aspect or any possible implementation manner of the third aspect.
In a tenth aspect, there is provided a computer storage medium for storing computer software instructions for the above method, comprising a program designed for performing the above aspects.
These and other aspects of the invention will be apparent from and elucidated with reference to the embodiments described hereinafter.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic flow chart of a method for transmitting uplink information according to an embodiment of the present invention.
Fig. 2 is a diagram illustrating a location of a DMRS in each slot in one uplink subframe.
Fig. 3 is another schematic flow chart of a method for transmitting uplink information according to an embodiment of the present invention.
Fig. 4 is still another schematic flow chart of a method for transmitting uplink information according to an embodiment of the present invention.
Fig. 5 is a schematic flowchart of a user equipment transmitting uplink information according to an embodiment of the present invention.
Fig. 6 is another schematic flow chart of a user equipment transmitting uplink information according to an embodiment of the present invention.
Fig. 7 is still another schematic flowchart of a user equipment transmitting uplink information according to an embodiment of the present invention.
Fig. 8 is a schematic flowchart of an apparatus for transmitting uplink information according to an embodiment of the present invention.
Fig. 9 is another schematic flow chart of an apparatus for transmitting uplink information according to an embodiment of the present invention.
Fig. 10 is still another exemplary flowchart of an apparatus for transmitting uplink information according to an embodiment of the present invention.
Fig. 11 is still another exemplary flowchart of an apparatus for transmitting uplink information 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 some, not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.
It should be understood that the technical solutions of the embodiments of the present invention can be applied to various communication systems, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long Term Evolution (LTE) System, a LTE Frequency Division Duplex (FDD) System, a LTE Time Division Duplex (TDD), a WiMAX (Universal Mobile telecommunications System, UMTS), or a Worldwide Interoperability for Microwave Access (UMTS) communication System.
It should also be understood that, in the embodiment of the present invention, a User Equipment (User Equipment, abbreviated as "UE") may be referred to as a Terminal (Terminal), a Mobile Station (Mobile Station, abbreviated as "MS"), a Mobile Terminal (Mobile Terminal), and the like, and the User Equipment may communicate with one or more core networks via a Radio Access Network (RAN), for example, the User Equipment may be a Mobile phone (or referred to as a "cellular" phone), a computer with a Mobile Terminal, and the like, for example, the User Equipment may also be a portable, pocket, hand-held, computer-included, or vehicle-mounted Mobile device, and they exchange voice and/or data with the RAN.
In the embodiment of the present invention, the Base Station may be a Base Transceiver Station (BTS) in GSM or CDMA, a Base Station (NodeB) in WCDMA, or an evolved Node B (eNB or e-NodeB) in LTE, which is not limited in the present invention but is described as an example, and the following embodiment will be described with the eNB as an example.
Fig. 1 shows a schematic flow chart of a method 100 for transmitting uplink information according to an embodiment of the present invention, where the method 100 may be performed by a user equipment side device, for example, may be performed by a UE. As shown in fig. 1, the method 100 includes:
s110, the user equipment determines the transmission power of a Physical Uplink Shared Channel (PUSCH);
s120, the user equipment determines the transmission power of a demodulation reference signal (DMRS) for demodulating the PUSCH, wherein the transmission power of the PUSCH is not equal to the transmission power of the DMRS;
and S130, the user equipment respectively transmits the PUSCH and the DMRS according to the transmission power of the PUSCH and the transmission power of the DMRS.
Specifically, the user equipment adopts a resource allocation mode of multiple clusters of frequency resources for the unlicensed spectrum, the number of frequency resources occupied by the transmitted DMRS for demodulating the PUSCH is greater than the number of frequency resources occupied by the PUSCH, if the same transmission power as that on the PUSCH symbol is adopted on the DMRS, the channel estimation performance of the DMRS cannot be guaranteed, and the user equipment can guarantee the channel estimation performance of the DMRS by determining the transmission power of the PUSCH and the DMRS for demodulating the PUSCH respectively, for example, by determining the transmission power on the PUSCH symbol first, and then determining the transmission power of the DMRS by the number of frequency resources occupied by the PUSCH and the DMRS on one symbol respectively. Further, the PUSCH and the DMRS can be simultaneously transmitted in one transmission opportunity of the unlicensed spectrum, so that the channel estimation performance is ensured by transmitting the DMRS signal which is different from the PUSCH and is used for demodulating the PUSCH. It should be understood that the separately determined transmission power of the PUSCH and the separately determined transmission power of the DMRS may also be the same, and the present invention is not limited thereto.
Therefore, the method of the embodiment of the invention can adopt different transmission powers to transmit the PUSCH and the DMRS for demodulating the PUSCH, thereby improving the performance of channel estimation.
The transmission of uplink service in the LTE system is scheduled based on a base station, and a basic time unit of the scheduling is one subframe, and one subframe includes a plurality of time domain symbols. The specific scheduling procedure is that the base station sends a Control Channel, such as a Physical Downlink Control Channel (PDCCH) or an Enhanced Physical Downlink Control Channel (EPDCCH), where the Control Channel may carry scheduling information of the PUSCH, and the scheduling information includes Control information such as resource allocation information and an adjustment coding method. The user equipment receives the downlink data channel or transmits the uplink data channel by detecting the scheduling information carried in the control channel.
An uplink data channel sent by the user equipment in one uplink subframe is a PUSCH, and a reference signal for demodulating PUSCH data is a DMRS. As shown in fig. 2, D0 to D12 are symbols occupied by the PUSCH channel, and the positions indicated by the DMRS in the figure are symbols occupied by the demodulation reference signal. The channel resources occupy N (N is more than or equal to 1) RBs, and under the condition of a general Cyclic Prefix (Normal CP), one time domain symbol in the middle of each time slot bears a demodulation reference signal; in the case of an Extended Cyclic Prefix (Extended CP), the third time domain symbol of each slot carries a demodulation reference signal.
The transmission power of the user equipment on the symbol where the PUSCH channel is located can be determined by the following modes:
if the ue transmits the PUSCH in the subframe i of the serving cell c without transmitting a Physical Uplink Control Channel (PUCCH), the ue transmits the PUSCH power P in the subframe i of the serving cell cPUSCH,c(i) Comprises the following steps:
if the user equipment transmits the PUSCH on the subframe i of the serving cell c and simultaneously transmits the PUCCH, the user equipment transmits the power P of the PUSCH on the subframe i of the serving cell cPUSCH,c(i) Comprises the following steps:
wherein M isPUSCH,c(i) The number of RBs occupied by PUSCH;
PCMAX,c(i) the maximum transmission power of the subframe i on the serving cell c configured for the user equipment is PCMAX,c(i) A linear value of (d);
linear value of PUCCH transmission power transmitted for subframe i;
PO_PUSCH,c(j) and αc(j) Is a value determined by the user equipment through high-level signaling;
PLcmeasuring a path loss value from a serving cell c to the user equipment, which is obtained for the user equipment;
ΔTF,c(i) a value determined by the user equipment according to the ratio of the number of uplink data bits sent by the PUSCH to the number of resource units included in the PUSCH;
fc(i) a value determined for the user equipment according to the power adjustment command for the PUSCH.
Therefore, the user equipment can determine the transmission power of the PUSCH by the number of frequency resources occupied by the PUSCH, which may be in units of RBs, PRBs, or REs. It should be understood that the present invention is only described by taking the above method as an example to determine the PUSCH transmission power, and the determination is not limited thereto.
The user equipment can also determine the transmission power of the DMRS according to the number of frequency resources occupied by the DMRS.
If the user equipment transmits PUSCH on the subframe i of the serving cell c without transmitting PUCCH, the user equipment transmits the power P of the DMRS on the subframe i of the serving cell cDMRS,c(i) Comprises the following steps:
if the user equipment transmits PUSCH and PUCCH simultaneously on the subframe i of the serving cell c, the user equipment transmits the power P of the DMRS on the subframe i of the serving cell cPUSCH,c(i) Comprises the following steps:
wherein M isDMRSc(i) Other parameters are the same as in equation (1) and equation (2) for the number of RBs occupied on the symbol of DMRS.
Preferably, the user equipment determines the transmission power of the DMRS for demodulating the PUSCH according to the transmission power of the PUSCH, and a ratio of the transmission power of the PUSCH to the transmission power of the DMRS is equal to a ratio of the number of frequency resources occupied by the PUSCH on one symbol to the number of frequency resources occupied by the DMRS on one symbol. For example, if the number of frequency resources for transmitting the PUSCH is one RE in one symbol for transmitting the PUSCH, and the number of frequency resources for transmitting the DMRS is one RE in one symbol for transmitting the DMRS, the ratio of the first transmission power and the second transmission power is P1 for assuming that the transmission power of the PUSCH is P2, and then the user equipment may determine the transmission power of the DMRS after determining the transmission power of the PUSCH.
It should be understood that the present invention is only described by taking the above method as an example to determine the transmission power of the DMRS, and is not limited thereto.
It should be understood that the embodiment of the present invention is only directed to the technical problem caused by the difference in power when the PUSCH and the DMRS for demodulating the PUSCH are jointly transmitted on the unlicensed spectrum, but the technical solution of the present invention may also be applied to the licensed spectrum, and for convenience of description, the PUSCH and the DMRS are transmitted on the unlicensed spectrum as an example.
Optionally, the sending, by the user equipment, the PUSCH and the DMRS according to the transmission power of the PUSCH and the transmission power of the DMRS respectively includes: the user equipment determines a target energy detection threshold value according to the transmission power of the PUSCH and the transmission power of the DMRS; the user equipment determines whether the unlicensed spectrum resources for transmitting the PUSCH and the DMRS are idle or not according to the target energy detection threshold value and a detection rule whether the unlicensed spectrum resources are idle or not; and when determining that the unlicensed spectrum resource is idle, the user equipment respectively transmits the PUSCH and the DMRS according to the transmission power of the PUSCH and the transmission power of the DMRS.
In order to achieve coexistence characteristics that a plurality of communication systems occupy unlicensed spectrum resources without affecting each other, a wireless communication device needs to use Listen Before Talk (LBT) rules to detect whether the unlicensed spectrum resources are idle when occupying the unlicensed spectrum for communication. Specifically, when the ue accesses the unlicensed spectrum, it needs to first determine that the unlicensed spectrum resource is idle through an energy detection process, and then can occupy the unlicensed spectrum resource to send the uplink information. The user equipment detects the signal energy received on the unlicensed spectrum resource and compares the signal energy with an energy detection threshold value to determine the detection result of whether the unlicensed spectrum resource is idle or not. If the energy of the signal received by the user equipment on the unlicensed spectrum resource is greater than the energy detection threshold value, the user equipment judges that the unlicensed spectrum resource is occupied and cannot send the signal on the resource. Otherwise, if the energy of the signal received by the user equipment on the unlicensed spectrum resource is less than the energy detection threshold value, the user equipment judges that the unlicensed spectrum resource is idle and can send the signal.
The threshold value for the user equipment to detect whether the unlicensed spectrum resource is idle is at least related to the transmission power of the uplink information sent by the user equipment on the unlicensed spectrum resource, or is also related to the frequency resource occupied by the sent uplink information. For example, the upper limit value of the target energy detection threshold value for the ue to detect whether the unlicensed spectrum resource is idle is the energy detection threshold XThresh_max：
Wherein, TAThe preset value is determined according to the type of uplink information sent by user equipment;
PH＝23dBm；
PTXfor user equipmentThe transmission power of (a);
Tmax(dBm)＝10·log10(3.16228·10-8(mW/MHz)·BWMHz(MHz))
BWMHz is the number of frequency resources occupied by the user equipment transmitting uplink information, which is represented by MHz.
The user equipment adopts a resource allocation mode of multiple clusters of frequency resources aiming at the license-free frequency spectrum, the number of the frequency resources occupied by the sent DMRS for demodulating the PUSCH is larger than that occupied by the PUSCH, and the sending power is unequal. In this way, the user equipment determines that the energy detection threshold value for detecting whether the unlicensed spectrum resource is idle is different according to the transmission power of the PUSCH and the transmission power of the DMRS. In order to avoid that the user equipment respectively detects whether the unlicensed spectrum resources are idle when sending the PUSCH and the DMRS, a target energy detection threshold value for detecting whether the unlicensed spectrum resources are idle when sending the PUSCH and a target energy detection threshold value for detecting whether the unlicensed spectrum resources are idle when sending the DMRS may be set as a uniform threshold value, so as to improve the sending efficiency of the uplink information.
If the user equipment uses the target energy detection threshold value and determines that the uplink channel resources are idle through the flow of the access channel, the UE can simultaneously transmit the PUSCH and the DMRS signals in one transmission opportunity of the license-free spectrum, and the purpose of ensuring the performance of channel estimation by transmitting the DMRS signals which are used for demodulating the PUSCH and have the bandwidth different from that of the PUSCH is achieved.
It should be understood that the flow of the user equipment accessing the channel is not particularly limited in the present invention. The user equipment may transmit the PUSCH and the DMRS if it is detected that the unlicensed spectrum resource is idle, and not transmit the PUSCH and the DMRS if it is detected that the unlicensed spectrum resource is not idle.
Optionally, the determining, by the user equipment, the target energy detection threshold according to the transmission power of the PUSCH and the transmission power of the DMRS includes: when the first energy detection threshold corresponding to the PUSCH determined according to the transmission power of the PUSCH is XThresh_max_1When the second energy detection threshold corresponding to the DMRS determined according to the transmission power of the DMRS is XThresh_max_2When the target energy detection threshold value for determining whether the UE detects the license-free frequency spectrum resource is idle is X, wherein X is not more than min (X)Thresh_max_1,XThresh_max_2) Where "min" is a function of selecting two parameters with smaller values.
It is to be appreciated that the user equipment can determine the first energy detection threshold as X according to equation (5)Thresh_max_1And a second energy detection threshold of XThresh_max_2X of the formulaThresh_max_1And XThresh_max_2The transmission power of the PUSCH and the DMRS is determined at least, or may also be determined by the size of the frequency resources occupied by the PUSCH and the DMRS, respectively.
Preferably, the first energy detection threshold is XThresh_max_1And the second energy detection threshold is XThresh_max_2Are equal.
After determining the first energy detection threshold corresponding to the PUSCH according to the transmission power of the PUSCH, the user equipment may determine the transmission power of the DMRS according to that the first energy detection threshold is equal to the second energy detection threshold corresponding to the DMRS. For example, according to a formula
T1max-PTX1＝T2max-PTX2 (6)
Transmission power P of DMRS can be calculatedTX2The number of frequency resources occupied by the PUSCH and the DMRS is known, and the transmission power P of the PUSCHTX1May be determined according to equation (1) or (2), and thus, the transmission power of the DMRS may be calculated.
Meanwhile, the first energy detection threshold value X is not less than PUSCHThresh_max_1The value X of the uplink channel is determined as a target energy detection threshold value for detecting whether the unlicensed spectrum resource is idle or not by the UE, and whether the uplink channel resource is idle or not is determined according to the target energy detection threshold value and a rule that whether the unlicensed spectrum resource is idle or not by the UE, so that the user equipment does not need to perform idle detection on the unlicensed spectrum resource aiming at the PUSCH and the DMRS respectively, and the uplink transmission efficiency is improved.
Correspondingly, the base station side receives a PUSCH sent by user equipment and a DMRS used for demodulating the PUSCH, and the sending power of the PUSCH is different from that of the DMRS; and the base station demodulates the PUSCH according to the ratio of the transmission power of the PUSCH and the transmission power of the DMRS.
Specifically, the base station demodulates the PUSCH using the DMRS, and relates to a ratio of the PUSCH transmission power to the DMRS transmission power, for example: assuming that the DMRS signal is S2, the transmission power is P2; s1 is the PUSCH signal, P1 is the transmission power, S1 demodulated according to S2 is
Therefore, the base station completes the channel estimation and the PUSCH channel demodulation according to the transmitting power of the user equipment for transmitting the DMRS and the transmitting power of the UE for transmitting the PUSCH, and the purpose of ensuring the channel estimation performance and the PUSCH data demodulation performance under the condition that the UE transmits the DMRS signal which is different from the PUSCH bandwidth and is used for demodulating the PUSCH can be realized.
Fig. 3 shows a schematic flow chart of a method 200 for transmitting uplink information according to an embodiment of the present invention, where the method 200 may be performed by a user equipment side device, for example, may be performed by a UE. As shown in fig. 3, the method 200 includes:
s210, the user equipment determines first uplink information and second uplink information to be sent in the time of at least one uplink subframe;
s220, the user equipment determines a power adjustment value according to the number of frequency resources occupied by the first uplink information or the second uplink information;
s230, the ue determines a first transmit power of the first uplink information and a second transmit power of the second uplink information according to the power adjustment value;
s240, the ue respectively transmits the first uplink information and the second uplink information according to the first transmission power and the second transmission power.
Specifically, after determining a power adjustment value according to the number of frequency resources occupied by the first uplink information or the second uplink information, the user equipment determines a first transmission power of the first uplink information and a second transmission power of the second uplink information according to the power adjustment value, and respectively transmits the first uplink information and the second uplink information according to the first transmission power and the second transmission power.
Therefore, the method of the embodiment of the present invention determines the power adjustment value according to the number of frequency resources occupied by the first uplink information or the second uplink information, and can improve the data transmission efficiency on the carrier of the unlicensed spectrum when the number of frequency resources occupied by the first uplink information and the number of frequency resources occupied by the second uplink information are not equal.
In the LTE system, the eNode B estimates uplink channel quality of different frequency bands using SRS. If the SRS is transmitted on a subframe, the SRS occupies the last symbol of the subframe, and thus the SRS and the DMRS are located on different Single-carrier Frequency-Division Multiple Access (SC-FDMA) symbols. If the last SC-FDMA symbol is allocated to SRS, the symbol cannot be used for PUSCH transmission. SRS typically covers a different and typically larger frequency band than PUSCH.
Optionally, the determining, by the ue, a first transmit power of the first uplink information and a second transmit power of the second uplink information according to the power adjustment value includes:
and the user equipment determines the power adjustment value according to the maximum value of the number of the occupied frequency resources in the first uplink information and the second uplink information.
Optionally, the first uplink information may be a PUSCH, the second uplink information may be an SRS, and if the number of frequency resources occupied by the PUSCH is greater than the number of frequency resources occupied by the SRS, the user equipment may determine the power adjustment value according to the number of frequency resources of the PUSCH, for example, 10log10(MPUSCH,c(i) ). And may determine the first transmit power and the second transmit power respectively according to the power adjustment value, for example: the user equipment may determine the first transmission power of the PUSCH according to equation (2), and the user equipment may adjust the power in equation (7) to determine the second transmission power of the SRS by 10log10(MSRS,c) Number of frequency resources M occupied by SRS in the middleSRS,cModifying the frequency resource number M occupied by PUSCHPUSCH,c(i)。
PSRS,c(i)＝min{PCMAX,c(i),PSRS_OFFSET,c(m)+10log10(MSRS,c)+PO_PUSCH,c(j)+αc(j)·PLc+fc(i)} (7)
Wherein P isCMAX,c(i)、PO_PUSCH,c(j)、αc(j)、PLc、fc(i) The meaning of (2) is the same as that in the above formulas (1) and (2).
PSRS_OFFSET,c(m) is a value configured for the user equipment through higher layer signaling.
MSRS,cIs the number of frequency resources occupied by the transmission of SRS in subframe i of serving cell c.
Optionally, if the number of frequency resources occupied by the SRS is greater than the number of frequency resources occupied by the PUSCH, the user equipment may determine the power adjustment value according to the number of frequency resources of the SRS, for example, 10log10(MSRS,c). And may determine the first transmit power and the second transmit power respectively according to the power adjustment value, for example: the user equipment may determine the second transmission power of the SRS according to formula (7), and the user equipment may adjust the power of formula (2) for determining the first transmission power of the PUSCH by 10log10(MPUSCH,c(i) Number of frequency resources M occupied by PUSCH in (c)PUSCH,c(i) Modifying the number of frequency resources M occupied by the SRSSRS,c。
Optionally, the first uplink information and the second uplink information may also be PUSCHs sent by different uplink subframes, and the first uplink information and the second uplink information may also be PUSCHs and SRSs sent in different uplink subframes.
Optionally, the sending, by the ue, the first uplink information and the second uplink information according to the first sending power and the second sending power respectively includes: the UE determines a first energy detection threshold X according to the first and second transmission powersThresh_max_1And a second energy detection threshold XThresh_max_2And determining that a target energy detection threshold value for the UE to detect whether the unlicensed spectrum resource is idle is X, wherein X is not greater than min (X)Thresh_max_1,XThresh_max_2) Wherein "min" is selected as a comparison of two parameter valuesA function of small parameters; the user equipment determines whether the unlicensed spectrum resource for transmitting the first uplink information and the second uplink information is idle according to the target energy detection threshold value and a detection rule whether the unlicensed spectrum resource is idle; and the user equipment sends the first uplink information and the second uplink information when determining that the license-exempt spectrum resource is idle.
It should be understood that the first transmission power and the second transmission power determined according to the embodiment of the present invention may be the same or different, and the present invention is not limited thereto.
In order to achieve coexistence characteristics that a plurality of communication systems occupy unlicensed spectrum resources without affecting each other, a wireless communication device needs to use Listen Before Talk (LBT) rules to detect whether the unlicensed spectrum resources are idle when occupying the unlicensed spectrum for communication. Specifically, when the ue accesses the unlicensed spectrum, it needs to first determine that the unlicensed spectrum resource is idle through an energy detection process, and then can occupy the unlicensed spectrum resource to send the uplink information. The user equipment detects the signal energy received on the unlicensed spectrum resource and compares the signal energy with an energy detection threshold value to determine the detection result of whether the unlicensed spectrum resource is idle or not. If the energy of the signal received by the user equipment on the unlicensed spectrum resource is greater than the detection threshold value, the user equipment judges that the unlicensed spectrum resource is occupied and cannot send the signal on the resource. Otherwise, if the energy of the signal received by the user equipment on the unlicensed spectrum resource is less than the detection threshold value, the user equipment judges that the unlicensed spectrum resource is idle and can send the signal.
The threshold value for the user equipment to detect whether the unlicensed spectrum resource is idle is at least related to the transmission power of the uplink information sent by the user equipment on the unlicensed spectrum resource, or is also related to the frequency resource occupied by the sent uplink information. For example, the energy detection threshold value for the ue to detect whether the unlicensed spectrum resource is free may be calculated by equation (5).
In order to avoid that the user equipment respectively detects whether the unlicensed spectrum resources are idle when transmitting the first uplink information and the second uplink information, a target energy detection threshold value for detecting whether the unlicensed spectrum resources are idle when transmitting the first uplink information and a target energy detection threshold value for detecting whether the unlicensed spectrum resources are idle when transmitting the second uplink information may be set as a uniform threshold value, so as to improve the transmission efficiency of the uplink information.
The ue may determine whether to occupy the unlicensed spectrum resource to send the first uplink information and the second uplink information according to a procedure of accessing the channel, and it should be understood that the procedure of accessing the channel by the ue is not particularly limited in the present invention. If the unlicensed spectrum resource is detected to be free, the user equipment may send the first uplink information and the second uplink information, and if the unlicensed spectrum resource is detected not to be free, the user equipment does not send the first uplink information and the second uplink information.
It should be appreciated that the user equipment may determine X according to equation (5)Thresh_max_1And XThresh_max_2X of the formulaThresh_max_1And XThresh_max_2The uplink transmission power is determined by at least the first transmission power and the second transmission power respectively, or is also determined by the size of the frequency resource occupied by the first uplink information and the second uplink information respectively.
Preferably, the first and second transmit powers are equal, and the first and second energy detection thresholds are equal.
Specifically, the user equipment may ignore Δ in equation (2)TF,c(i) And P in the formula (7)SRS_OFFSET,c(i) Equal to 0, so that the first transmit power and the second transmit power can be set to the same value, and therefore, in the case of using the same number of frequency resources, the first energy detection threshold and the second energy detection threshold can be set to the same value according to formula (5), so that the user equipment does not need to perform idle detection on the unlicensed spectrum resources for the first uplink information and the second uplink information, respectively, thereby improving the uplink transmission efficiency.
Correspondingly, the base station side receives the first uplink information sent by the user equipment according to the first sending power and the second uplink information sent by the second sending power, and the data sending efficiency on the carrier wave of the license-free frequency spectrum can be improved under the condition that the number of frequency resources occupied by the first uplink information and the second uplink information is not equal.
Fig. 4 shows a schematic flow chart of a method 300 for transmitting uplink information according to an embodiment of the present invention, where the method 300 may be performed by a user equipment side device, for example, may be performed by a UE. As shown in fig. 4, the method 300 includes:
s310, the user equipment determines first uplink information and second uplink information to be sent in the time of at least one uplink subframe;
s320, the ue determines a first transmit power of the first uplink information and a second transmit power of the second uplink information respectively;
s330, the ue transmits the first uplink information and the second uplink information according to a maximum value of the first transmission power and the second transmission power.
Specifically, when the user equipment determines first uplink information and second uplink information to be sent within the time of at least one uplink subframe, if the user equipment determines that the transmission power of the first uplink information is the first transmission power and determines that the transmission power of the second uplink information is the second transmission power, the user equipment sends the first uplink information by using the target transmission power and sends the second uplink information by using the target transmission power. The target transmission power is a maximum value of the first transmission power and the second transmission power.
Therefore, the method according to the embodiment of the present invention transmits the first uplink information and the second uplink information according to the maximum value of the first transmission power of the first uplink information and the second transmission power of the second uplink information, and can improve the data transmission efficiency on the carrier of the unlicensed spectrum.
Optionally, the first uplink information is a physical uplink shared channel PUSCH, and the second uplink information is a sounding reference signal SRS. Or the first uplink information and the second uplink information are PUSCHs in different uplink subframes.
Optionally, the user equipment determines the first transmission power of the PUSCH information by formula (1) or (2), and determines the second transmission power of the SRS by formula (7).
Optionally, before the UE sends the first uplink information using the target sending power and sends the second uplink information using the target sending power, the target energy detection threshold value for determining whether the UE detects the unlicensed spectrum resource is idle is X, where the value of X is not greater than XThresh_maxX of the formulaThresh_maxMay be determined by at least the target transmit power. For example, the user equipment may determine X corresponding to the target transmission power according to formula (5)Thresh_max. In addition to being related to the target transmit power, the XThresh_maxAnd the size of the frequency resource occupied by the uplink information corresponding to the target transmission power can be related.
The user equipment may determine whether the unlicensed spectrum resource may be occupied to transmit the first uplink information and the second uplink information according to the procedure of the access channel and the target energy detection threshold value X, and it should be understood that the procedure of the user equipment accessing the channel is not particularly limited in the present invention. If the unlicensed spectrum resource is detected to be free, the user equipment may send the first uplink information and the second uplink information, and if the unlicensed spectrum resource is detected not to be free, the user equipment does not send the first uplink information and the second uplink information.
Correspondingly, the base station side receives the first uplink information sent by the user equipment according to the target sending power and the second uplink information sent by the target sending power, and can ensure that the first uplink information and the second uplink information are simultaneously sent in one sending opportunity of the license-free frequency spectrum under the condition that the number of frequency resources occupied by the first uplink information and the second uplink information is not equal, so that the data sending efficiency on the carrier wave of the license-free frequency spectrum is improved.
The method for transmitting uplink information according to the embodiment of the present invention is described in detail above with reference to fig. 1 to 4, and the user equipment according to the embodiment of the present invention is described in detail below with reference to fig. 5 to 7.
As shown in fig. 5, the user equipment 400 according to an embodiment of the present invention includes:
a first determining module 410, configured to determine a transmission power of a physical uplink shared channel, PUSCH;
a second determining module 420, configured to determine a transmission power of a demodulation reference signal DMRS used for demodulating the PUSCH, where the transmission power of the PUSCH is not equal to the transmission power of the DMRS;
a transmitting module 430, configured to transmit the PUSCH and the DMRS according to the transmission power of the PUSCH and the transmission power of the DMRS, respectively.
Therefore, the user equipment of the embodiment of the invention can adopt different transmission powers to transmit the PUSCH and the DMRS for demodulating the PUSCH, thereby improving the performance of channel estimation.
As shown in fig. 6, the user equipment 500 according to an embodiment of the present invention includes:
a first determining module 510, configured to determine first uplink information and second uplink information to be sent within a time of at least one uplink subframe;
a second determining module 520, configured to determine a power adjustment value according to the number of frequency resources occupied by the first uplink information or the second uplink information;
a third determining module 530, configured to determine a first transmit power of the first uplink information and a second transmit power of the second uplink information according to the power adjustment value;
a sending module 540, configured to send the first uplink information and the second uplink information according to the first sending power and the second sending power, respectively.
Therefore, the user equipment according to the embodiment of the present invention determines the power adjustment value according to the number of frequency resources occupied by the first uplink information or the second uplink information, and can improve the data transmission efficiency on the carrier of the unlicensed spectrum when the number of frequency resources occupied by the first uplink information and the number of frequency resources occupied by the second uplink information are not equal.
As shown in fig. 7, the user equipment 600 according to an embodiment of the present invention includes:
a first determining module 610, configured to determine first uplink information and second uplink information to be sent within a time of at least one uplink subframe;
a second determining module 620, configured to determine a first transmit power of the first uplink information and a second transmit power of the second uplink information respectively;
a sending module 630, configured to send the first uplink information and the second uplink information according to a maximum value of the first sending power and the second sending power.
Therefore, the user equipment according to the embodiment of the present invention transmits the first uplink information and the second uplink information according to the maximum value of the first transmission power of the first uplink information and the second transmission power of the second uplink information, and can improve the data transmission efficiency on the carrier of the unlicensed spectrum.
The user equipment 400, 500, and 600 according to the embodiments of the present invention may correspond to the user equipment in the embodiments of the present invention, and the above and other operations and/or functions of each module in the user equipment 400, 500, and 600 are respectively for implementing corresponding flows of each method in fig. 1 to fig. 4, and are not described herein again for brevity.
The embodiment of the invention also provides a base station for transmitting uplink information, which comprises:
the device comprises a receiving module, a demodulation module and a processing module, wherein the receiving module is used for receiving a Physical Uplink Shared Channel (PUSCH) and a demodulation reference signal (DMRS) used for demodulating the PUSCH, and the sending power of the PUSCH is different from that of the DMRS;
and the demodulation module is used for demodulating the PUSCH according to the ratio of the transmission power of the PUSCH and the transmission power of the DMRS.
Therefore, the base station according to the embodiment of the present invention completes the channel estimation and PUSCH channel demodulation processes according to the transmission power of the user equipment for transmitting the DMRS and the transmission power of the UE for transmitting the PUSCH, and can achieve the purpose of ensuring the channel estimation performance and the PUSCH data demodulation performance when the UE transmits a DMRS signal for demodulating the PUSCH with a bandwidth different from that of the PUSCH.
The embodiment of the invention also provides another base station for transmitting uplink information, which comprises:
and the receiving module is used for receiving first uplink information sent by the user equipment according to the first sending power and second uplink information sent by the user equipment according to the second sending power.
Specifically, the first transmission power and the second transmission power are determined by the user equipment according to a power adjustment value, which is related to the number of frequency resources of the first uplink information or the second uplink information.
Therefore, the base station in the embodiment of the present invention can improve the data transmission efficiency on the carrier of the unlicensed spectrum when the number of frequency resources occupied by the first uplink information and the second uplink information is not equal.
Fig. 8 shows an apparatus 700 for transmitting uplink information according to an embodiment of the present invention, where the apparatus 700 includes: memory 710, processor 720, transceiver 730, and bus system 740. Wherein the memory 710, the processor 720 and the transceiver 730 are coupled via the bus system 740, the memory 710 is configured to store instructions, the processor 720 is configured to execute the instructions stored in the memory to control the transceiver 730 to receive signals or transmit signals, and when the processor 720 executes the instructions stored in the memory, the processor 720 performs the following operations: determining the transmission power of a Physical Uplink Shared Channel (PUSCH); determining the transmission power of a demodulation reference signal (DMRS) for demodulating the PUSCH, wherein the transmission power of the PUSCH is not equal to the transmission power of the DMRS; and respectively transmitting the PUSCH and the DMRS according to the transmission power of the PUSCH and the transmission power of the DMRS.
Therefore, the apparatus of the embodiment of the present invention can transmit the PUSCH and the DMRS for demodulating the PUSCH with different transmission powers, thereby improving the performance of channel estimation.
Fig. 9 shows an apparatus 800 for transmitting uplink information according to an embodiment of the present invention, where the apparatus 800 includes: memory 810, processor 820, transceiver 830, and bus system 840. Wherein the memory 810, the processor 820 and the transceiver 830 are coupled via the bus system 840, the memory 810 is configured to store instructions, the processor 820 is configured to execute the instructions stored by the memory to control the transceiver 830 to receive signals or transmit signals, and when the processor 820 executes the instructions stored by the memory, the processor 820 performs the following operations: determining first uplink information and second uplink information to be sent in the time of at least one uplink subframe; determining a power adjustment value according to the number of frequency resources occupied by the first uplink information or the second uplink information; determining a first transmission power of the first uplink information and a second transmission power of the second uplink information according to the power adjustment value; and respectively transmitting the first uplink information and the second uplink information according to the first transmission power and the second transmission power.
Therefore, the apparatus in the embodiment of the present invention determines the power adjustment value according to the number of frequency resources occupied by the first uplink information or the second uplink information, and can improve the data transmission efficiency on the carrier of the unlicensed spectrum when the number of frequency resources occupied by the first uplink information and the number of frequency resources occupied by the second uplink information are not equal to each other.
Fig. 10 shows an apparatus 900 for transmitting uplink information according to an embodiment of the present invention, where the apparatus 900 includes: memory 910, processor 920, transceiver 930, and bus system 940. Wherein the memory 910, the processor 920 and the transceiver 630 are coupled via the bus system 940, the memory 910 is configured to store instructions, the processor 920 is configured to execute the instructions stored in the memory to control the transceiver 930 to receive signals or transmit signals, and when the processor 920 executes the instructions stored in the memory, the processor 920 performs the following operations: determining first uplink information and second uplink information to be sent in the time of at least one uplink subframe; respectively determining a first transmission power of the first uplink information and a second transmission power of the second uplink information; and transmitting the first uplink information and the second uplink information according to the maximum value of the first transmission power and the second transmission power.
Therefore, the apparatus according to the embodiment of the present invention can improve the data transmission efficiency on the carrier of the unlicensed spectrum by transmitting the first uplink information and the second uplink information according to the maximum value of the first transmission power of the first uplink information and the second transmission power of the second uplink information.
Fig. 11 shows an apparatus 1000 for transmitting uplink information according to an embodiment of the present invention, where the apparatus 1000 includes: memory 1100, processor 1200, transceiver 1300, and bus system 1400. Wherein the memory 1100, the processor 1200 and the transceiver 1300 are connected via the bus system 1400, the memory 1100 is used for storing instructions, the processor 1200 is used for executing the instructions stored in the memory to control the transceiver 1300 to receive signals or transmit signals, and when the processor 1200 executes the instructions stored in the memory, the processor 1200 performs the following operations: receiving a PUSCH (physical uplink shared channel) sent by user equipment and a DMRS (demodulation reference signal) used for demodulating the PUSCH, wherein the sending power of the PUSCH is different from the sending power of the DMRS; and demodulating the PUSCH according to the ratio of the transmission power of the PUSCH and the transmission power of the DMRS.
Therefore, the device according to the embodiment of the present invention completes the channel estimation and PUSCH channel demodulation processes according to the transmission power of the user equipment for transmitting the DMRS and the transmission power of the UE for transmitting the PUSCH, and can achieve the purpose of ensuring the channel estimation performance and the PUSCH data demodulation performance when the UE transmits a DMRS signal for demodulating the PUSCH with a bandwidth different from that of the PUSCH.
The embodiment of the invention also provides another device for transmitting uplink information, which comprises: memory, processor, transceiver and bus system. Wherein the memory, the processor and the transceiver are coupled via the bus system, the memory is configured to store instructions, the processor is configured to execute the instructions stored by the memory to control the transceiver to receive signals or transmit signals, and when the processor executes the instructions stored by the memory, the processor performs the following operations: and receiving first uplink information sent by the user equipment according to the first sending power and second uplink information sent by the user equipment with the second sending power.
Specifically, the first transmission power and the second transmission power are determined by the user equipment according to a power adjustment value, which is related to the number of frequency resources of the first uplink information or the second uplink information. The device of the embodiment of the invention can improve the data sending efficiency on the carrier wave of the license-free frequency spectrum under the condition that the number of the frequency resources occupied by the first uplink information and the second uplink information is not equal.
It should be understood that, in the embodiments of the present invention, the processor may be a Central Processing Unit (CPU), and the processor may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The bus system may include a power bus, a control bus, a status signal bus, and the like, in addition to the data bus. For clarity of illustration, however, the various buses are labeled as a bus system in the figures.
In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The steps of a method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in the processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor. To avoid repetition, it is not described in detail here.
Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and that the components and steps of the examples have been described in a functional general in the foregoing description for the purpose of illustrating clearly the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is merely a logical division, and the target implementation may have another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may also be an electric, mechanical or other form of connection.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to the needs of the target to achieve the purpose of the embodiment scheme of the invention.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention essentially or partially contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (24)

  1. A method for transmitting uplink information, comprising:
    the method comprises the steps that user equipment determines the sending power of a Physical Uplink Shared Channel (PUSCH);
    the user equipment determines the transmission power of a demodulation reference signal (DMRS) for demodulating the PUSCH, wherein the transmission power of the PUSCH is not equal to the transmission power of the DMRS;
    and the user equipment respectively transmits the PUSCH and the DMRS according to the transmission power of the PUSCH and the transmission power of the DMRS.
  2. The method of claim 1, wherein the user equipment transmits the transmission of the PUSCH and the DMRS according to the transmission power of the PUSCH and the transmission power of the DMRS, respectively, comprising:
    the user equipment determines a target energy detection threshold value according to the transmission power of the PUSCH and the transmission power of the DMRS;
    the user equipment determines whether the unlicensed spectrum resources for transmitting the PUSCH and the DMRS are idle according to the target energy detection threshold value and a detection rule whether the unlicensed spectrum resources are idle;
    and when determining that the license-free spectrum resource is idle, the user equipment respectively transmits the PUSCH and the DMRS according to the transmission power of the PUSCH and the transmission power of the DMRS.
  3. The method of claim 2, wherein the determining, by the user equipment, the target energy detection threshold value according to the transmission power of the PUSCH and the transmission power of the DMRS comprises:
    the user equipment determines a first energy detection threshold according to the sending power of the PUSCH;
    the user equipment determines a second energy detection threshold according to the transmission power of the DMRS;
    the user equipment determines the target energy detection threshold value according to the first energy detection threshold value and the second energy detection threshold value, wherein the target energy detection threshold value is not greater than the minimum value of the first energy detection threshold value and the second energy detection threshold value.
  4. The method of claim 3, wherein the first energy detection threshold and the second energy detection threshold are equal.
  5. The method according to any of claims 1 to 4, characterized in that the ratio of the transmission power of the DMRS to the transmission power of the PUSCH is equal to the ratio of the number of frequency resources occupied by the DMRS on one symbol to the number of frequency resources occupied by the PUSCH on one symbol.
  6. A method for transmitting uplink information, comprising:
    the method comprises the steps that user equipment determines first uplink information and second uplink information to be sent in the time of at least one uplink subframe;
    the user equipment determines a power adjustment value according to the number of frequency resources occupied by the first uplink information or the second uplink information;
    the user equipment determines first sending power of the first uplink information and second sending power of second uplink information according to the power adjustment value;
    and the user equipment respectively sends the first uplink information and the second uplink information according to the first sending power and the second sending power.
  7. The method of claim 6, wherein the determining, by the UE, a power adjustment value according to the number of frequency resources occupied by the first uplink information or the second uplink information comprises:
    and the user equipment determines the power adjustment value according to the maximum value of the number of the frequency resources occupied in the first uplink information and the second uplink information.
  8. The method according to claim 6 or 7, wherein the ue transmits the first uplink information and the second uplink information according to the first transmission power and the second transmission power, respectively, and comprises:
    the user equipment determines a target energy detection threshold value according to the first transmission power and the second transmission power;
    the user equipment determines whether the unlicensed spectrum resources for transmitting the first uplink information and the second uplink information are idle according to the target energy detection threshold value and a detection rule whether the unlicensed spectrum resources are idle;
    and when determining that the license-exempt spectrum resource is idle, the user equipment respectively sends the first uplink information and the second uplink information according to the first sending power and the second sending power.
  9. The method of claim 8, wherein the determining, by the UE, a target energy detection threshold according to the first transmission power and the second transmission power comprises:
    the user equipment determines a first energy detection threshold according to the first transmission power;
    the user equipment determines a second energy detection threshold according to the second transmission power;
    the user equipment determines the target energy detection threshold value according to the first energy detection threshold value and the second energy detection threshold value, wherein the target energy detection threshold value is not greater than the minimum value of the first energy detection threshold value and the second energy detection threshold value.
  10. The method of claim 9, wherein the first transmit power and the second transmit power are equal, and wherein the first energy detection threshold and the second energy detection threshold are equal.
  11. The method according to any of claims 6 to 10, wherein the first uplink information is a physical uplink shared channel, PUSCH, and the second uplink information is a sounding reference signal, SRS.
  12. A method for transmitting uplink information, the method comprising:
    a base station receives a Physical Uplink Shared Channel (PUSCH) and a demodulation reference signal (DMRS) for demodulating the PUSCH, wherein the sending power of the PUSCH is different from the sending power of the DMRS;
    and the base station demodulates the PUSCH according to the ratio of the transmission power of the PUSCH and the transmission power of the DMRS.
  13. A user equipment for transmitting uplink information, the user equipment comprising:
    a first determining module, configured to determine a transmission power of a physical uplink shared channel PUSCH;
    a second determining module, configured to determine a transmission power of a demodulation reference signal DMRS used for demodulating the PUSCH, where the transmission power of the PUSCH is not equal to the transmission power of the DMRS;
    and the transmitting module is used for respectively transmitting the PUSCH and the DMRS according to the transmission power of the PUSCH and the transmission power of the DMRS.
  14. The UE of claim 13, wherein the sending module comprises:
    a first determining unit, configured to determine a target energy detection threshold according to the transmission power of the PUSCH and the transmission power of the DMRS;
    a second determining unit, configured to determine whether an unlicensed spectrum resource used for transmitting the PUSCH and the DMRS is idle according to the target energy detection threshold value and a detection rule whether the unlicensed spectrum resource is idle;
    and a transmitting unit, configured to transmit the PUSCH and the DMRS according to the transmission power of the PUSCH and the transmission power of the DMRS, respectively, when it is determined that the unlicensed spectrum resource is idle.
  15. The ue of claim 14, wherein the first determining unit is specifically configured to:
    determining a first energy detection threshold according to the transmission power of the PUSCH;
    determining a second energy detection threshold according to the transmission power of the DMRS;
    and determining the target energy detection threshold value according to the first energy detection threshold value and the second energy detection threshold value, wherein the target energy detection threshold value is not larger than the minimum value of the first energy detection threshold value and the second energy detection threshold value.
  16. The user equipment of claim 15, wherein the first energy detection threshold and the second energy detection threshold are equal.
  17. The user equipment according to any of claims 13-16, wherein the ratio of the transmission power of the DMRS to the transmission power of the PUSCH is equal to the ratio of the number of frequency resources occupied by the DMRS on one symbol to the number of frequency resources occupied by the PUSCH on one symbol.
  18. A user equipment for transmitting uplink information, the user equipment comprising:
    a first determining module, configured to determine first uplink information and second uplink information to be sent within a time of at least one uplink subframe;
    a second determining module, configured to determine a power adjustment value according to the number of frequency resources occupied by the first uplink information or the second uplink information;
    a third determining module, configured to determine, according to the power adjustment value, a first transmit power of the first uplink information and a second transmit power of the second uplink information;
    and a sending module, configured to send the first uplink information and the second uplink information according to the first sending power and the second sending power, respectively.
  19. The ue of claim 18, wherein the second determining module is specifically configured to:
    and determining the power adjustment value according to the maximum value of the number of the frequency resources occupied in the first uplink information and the second uplink information.
  20. The UE of claim 18 or 19, wherein the sending module comprises:
    a first determining unit, configured to determine a target energy detection threshold according to the first transmit power and the second transmit power;
    a second determining unit, configured to determine whether an unlicensed spectrum resource used for sending the first uplink information and the second uplink information is idle according to the target energy detection threshold value and a detection rule of whether the unlicensed spectrum resource is idle;
    a sending unit, configured to send the first uplink information and the second uplink information according to the first sending power and the second sending power, respectively, when it is determined that the unlicensed spectrum resource is idle.
  21. The ue of claim 20, wherein the first determining unit is specifically configured to:
    determining a first energy detection threshold based on the first transmit power;
    determining a second energy detection threshold according to the second transmission power;
    and determining the target energy detection threshold value according to the first energy detection threshold value and the second energy detection threshold value, wherein the target energy detection threshold value is not larger than the minimum value of the first energy detection threshold value and the second energy detection threshold value.
  22. The UE of claim 21, wherein the first and second transmit powers are equal, and wherein the first and second energy detection thresholds are equal.
  23. The UE according to any of claims 18-22, wherein the first uplink information is a Physical Uplink Shared Channel (PUSCH), and the second uplink information is a Sounding Reference Signal (SRS).
  24. A base station for transmitting uplink information, the base station comprising:
    the device comprises a receiving module, a demodulation module and a processing module, wherein the receiving module is used for receiving a Physical Uplink Shared Channel (PUSCH) and a demodulation reference signal (DMRS) used for demodulating the PUSCH, and the sending power of the PUSCH is different from that of the DMRS;
    and the demodulation module is used for demodulating the PUSCH according to the ratio of the transmission power of the PUSCH and the transmission power of the DMRS.
CN201680081006.3A 2016-02-04 2016-02-04 Transmit method, user equipment, base station and the device of uplink information Pending CN108605294A (en)

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