CN102196564B - Method and equipment for allocating uplink shared resources - Google Patents
Method and equipment for allocating uplink shared resources Download PDFInfo
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- CN102196564B CN102196564B CN2010101305028A CN201010130502A CN102196564B CN 102196564 B CN102196564 B CN 102196564B CN 2010101305028 A CN2010101305028 A CN 2010101305028A CN 201010130502 A CN201010130502 A CN 201010130502A CN 102196564 B CN102196564 B CN 102196564B
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Abstract
The embodiment of the invention relates to a wireless communication technology, in particular to a method and equipment for allocating uplink shared resources. By the method and the equipment, the problem that in the prior art, the power spectral densities of the uplink shared resources cannot meet the requirement of service transmission because a resource block allocated by a base station to a user terminal is quite large but the transmitting power of the user terminal may be not large enough is solved. The method comprises the following steps of: according to a PH value, historical dispatching information, historical power control information, dispatching information of a current dispatching user terminal and current power control information, judging whether the power of the current dispatching user terminal is limited; and according to a judgment result, determining a transmission bandwidth actually allocated to the current dispatching user terminal and informing the user terminal of an actually-allocated transmission bandwidth. By the method, the uplink transmission power of the user terminal is not limited, so the service quality of each uplink service of the user terminal is improved and the capacity of the system is increased.
Description
Technical field
The present invention relates to wireless communication technology, particularly a kind of method and apparatus that distributes uplink shared resources.
Background technology
At LTE (Long Term Evolution, Long Term Evolution) in system, the transmitting uplink data of user terminal is at PUSCH (Physical Uplink Shared Channel, physical uplink link sharing channel) transmit on, and the size of uplink assignment shared resource and MCS (Modulation and CodingScheme, modulation coding mode) grade is that user terminal distributes by base station.
At present, the resource block size of distributing for the user terminal uplink and MCS grade Main Basis are that data volume in up buffer (buffer area) and CQI (Channel Quality Indicator, the channel quality indication) information of terminal to report are determined.
If base station assigns gives the Resource Block of certain user terminal very large, but this user terminal is in cell edge, can cause the transmitting power of user terminal inadequate, receiving terminal receives on uplink shared resources power spectral density is reduced, cause the receiving terminal can not correctly demodulation uplink data block, cause the BLER (BLockError Rate, Block Error Rate) of transmission very high.
In sum,, if base station assigns is very large to the Resource Block of user terminal, the inadequate situation of transmitting power of user terminal likely occurs, thereby cause the power spectral density on uplink shared resources to reduce, can not meet the transfer of data requirement of uplink service.
Summary of the invention
The embodiment of the present invention provides a kind of method and apparatus that distributes uplink shared resources, very large to the Resource Block of user terminal in order to solve the base station assigns that exists in prior art, the inadequate situation of transmitting power that user terminal likely occurs, thereby cause the power spectral density on uplink shared resources to reduce, can not meet the problem of the transfer of data requirement of uplink service.
A kind of method of distributing uplink shared resources that the embodiment of the present invention provides, the method comprises:
Determine corresponding historical schedule information and the historical power control information of power residue pH value of user terminal to send up;
Schedule information and current power control information according to described pH value, described historical schedule information, described historical power control information, the described user terminal of this scheduling, judge whether the user terminal of this scheduling power limited can occur;
According to judged result, the transmission bandwidth of actual allocated while determining the described user terminal of this scheduling, and with the transmission bandwidth of described actual allocated, notify described user terminal.
A kind of network equipment that the embodiment of the present invention provides, this network equipment comprises:
The information determination module, be used for determining that the power of user terminal to send up remains corresponding historical schedule information and the historical power control information of pH value;
Judge module, be used for schedule information and current power control information according to described pH value, described historical schedule information, described historical power control information, the described user terminal of this scheduling, judges whether the user terminal of this scheduling power limited can occur;
The bandwidth determination module, be used for according to judged result, the transmission bandwidth of actual allocated while determining the described user terminal of this scheduling;
Notification module, be used for notifying described user terminal with the transmission bandwidth of described actual allocated.
The historical power control information that the embodiment of the present invention historical schedule information, this pH value corresponding according to pH value, this pH value of user terminal to send up is corresponding, schedule information and the current power control information of this scheduling user terminal, judge whether the user terminal of this scheduling power limited can occur; According to judged result, the transmission bandwidth of actual allocated while determining this scheduling user terminal, and with the transmission bandwidth informing user terminal of actual allocated.
because the embodiment of the present invention can be according to PH (the Power headroom of user terminal to send up, the power residue) value, whether the user terminal that judges this scheduling power limited can occur, and according to judged result, the transmission bandwidth of actual allocated while determining this scheduling user terminal, avoid because base station assigns is very large to the Resource Block of user terminal, the inadequate situation (guaranteeing that namely user terminal not there will be the limited situation of uplink transmission power) of transmitting power that user terminal likely occurs, thereby improved the power spectral density on the uplink shared resources, improve the service quality of each uplink service of user terminal, capacity,
Further under the prerequisite of the signal to noise ratio size that guarantees the uplink transmission data piece, reduced the Block Error Rate of uplink data block;
Further also reduce retransmission delay time, guaranteed the QoS (Quality ofService, quality of service) of user terminal uplink service.
Description of drawings
Fig. 1 is the structural representation of embodiment of the present invention network equipment;
Fig. 2 is the method flow schematic diagram that the embodiment of the present invention is distributed uplink shared resources;
Fig. 3 is the method flow schematic diagram that embodiment of the present invention the first is adjusted ascending resource;
Fig. 4 is the method flow schematic diagram that embodiment of the present invention the second is adjusted ascending resource.
Embodiment
The historical power control information that the embodiment of the present invention historical schedule information, this pH value corresponding according to pH value, this pH value of user terminal to send up is corresponding, schedule information and the current power control information of this scheduling user terminal, judge whether the user terminal of this scheduling power limited can occur; According to judged result, the transmission bandwidth of actual allocated while determining this scheduling user terminal, and with the transmission bandwidth informing user terminal of actual allocated.Because the embodiment of the present invention can be according to the dump power value of user terminal to send up, whether the user terminal that judges this scheduling power limited can occur, and according to judged result, the transmission bandwidth of actual allocated while determining this scheduling user terminal, avoid because base station assigns is very large to the Resource Block of user terminal, the inadequate situation of transmitting power of user terminal likely occurs, thereby improved the power spectral density on the uplink shared resources.
Wherein, user terminal is by the pH value of PHR (Power Headroom Report, the report of power residue) process informing network side self, and pH value is that the theory of user terminal maximum transmit power and user terminal is calculated the difference between transmitted power.
In specific implementation process, user terminal can be determined pH value by formula one:
PH=P
MAX-{ 10log
10(M
PUSCH(z))+P
O_PUSCH(x)+α PL+ Δ
TF(z)+f (y) } .... formula one.
Wherein: P
MAXFor the maximum transmission power of user terminal, by the ability rating decision of user terminal; M
PUSCH(z) transmission bandwidth of this user terminal PUSCH in the sub-frame of uplink z that determines for network side; P
O_PUSCH(x) for network side configures x class power parameter to this user terminal, the value of x is 0,1,2, and wherein this parameter is used for semi-continuous scheduling during x=0, and during x=1, this parameter is used for dynamic dispatching, is used for random access transmission during x=2; α is that network side configures the path loss compensating factor to user terminal, and for the situation of x=0 and x=1, the possible value of α is: α ∈ 0,0.4,0.5,0.6,0.7,0.8,0.9,1}, and for the situation of j=2, α=1; PL be user terminal measurement and level and smooth after the user terminal that obtains and the path loss between serving BS; Δ
TF(z) be power offset with respect to modulation and coding, the MCS classification that the parameter that can configure by network side and network side are dispatched this transmission; F (y) adjusts for the power control of informing user terminal according to network side the closed power adjustment parameter that step-length is determined.
Need to prove that the embodiment of the present invention is not limited to the mode of above-mentioned definite pH value, other can determine the applicable equally embodiment of the present invention of mode of pH value.
The scheme of the embodiment of the present invention can be applied in the LTE system and also can be applied in other systems that need network side distribution uplink shared resources.
Below in conjunction with Figure of description, the embodiment of the present invention is described in further detail.
As shown in Figure 1, the network equipment of the embodiment of the present invention comprises: information determination module 10, judge module 20, bandwidth determination module 30 and notification module 40.
Judge module 20, be used for the historical schedule information that the pH value of determining according to information determination module 10, information determination module 10 determine, the historical power control information that information determination module 10 is determined, schedule information and the current power control information of this scheduling user terminal, judge whether the user terminal of this scheduling power limited can occur.
The network equipment of the embodiment of the present invention can further include: processing module 50.
Concrete, processing module 50 is according to predefined up channel information and the mapping relations of MCS grade, determine the MCS grade corresponding to uplink channel information of user terminal, then network side obtains user terminal data volume waiting for transmission from BSR, according to data volume waiting for transmission, the MCS grade of determining, and current available resource information, determine preallocated transmission bandwidth in the schedule information of this scheduling user terminal.
Such as processing module 50 is selected suitable resource according to designed resource distribution principle:
, according to the transmittability on each Resource Block of MCS classification on each Resource Block (being the data volume that each Resource Block can carry), according to current available resource information, according to the algorithm (as direct ratio fair algorithm, max carrier to interference algorithm etc.) of design, select appropriate resources;
If the data volume that all available resources can be carried, less than or equal to the data volume of this user terminal band transmission, is distributed to this user terminal with all available resources; Select the highest M of a priority Resource Block as preallocated resource otherwise according to selected algorithm, select from all Resource Block.Wherein M is according in the definite Resource Block priority query of selected algorithm, according to the least resource piece number of definite all the data to be transmitted amounts of user of carrying of priority order from high to low.
Further, processing module 50 can also configure the power parameter of rrc layer to user terminal according to network side, and the historical signal to noise ratio information of this user terminal of receiving of network side, determines current power control information.
In implementation process, the up BSR of user terminal is by user terminal to send up; The up CQI of user terminal can be user terminal to send up, can be also to determine after processing module 50 is measured.
Need to prove, the embodiment of the present invention is not limited to aforesaid way, and other can determine that in the schedule information of this scheduling user terminal, the mode of MCS grade and preallocated transmission bandwidth all is suitable for the embodiment of the present invention.
Wherein, the pH value of user terminal to send up is to determine according to the resource of network side distribution in the past, that is to say that each pH value can a corresponding historical schedule information and a historical power control information.
If in the A moment and B, also need for the user terminal Resources allocation constantly, information determination module 10 can be determined corresponding historical schedule information and the historical power control information of pH value that A received constantly.Before determining that preferably A is constantly, and constantly nearest information corresponding to pH value of distance A.
If the pH value of not receiving the pH value of user terminal to send up or reporting is apart from the threshold value of current time greater than setting, can distribute based on the uplink channel information of user terminal, the up resource that needs the data amount information that transmits, each subframe uplink available resource information etc. to carry out Uplink Shared Channel, determine the uplink transmission resource (comprising uplink bandwidth, running time-frequency resource position and the information such as MCS grade of supporting on the running time-frequency resource of scheduling) of each time of user terminal scheduling.
Wherein, judge module 20 judges that the mode whether user terminal of this scheduling power limited can occur has a lot, below enumerates several:
Mode one, the current maximum transmission bandwidth that can support of preallocated transmission bandwidth and user terminal in the schedule information of this scheduling user terminal is compared, judge whether the user terminal of this scheduling power limited can occur.
Concrete, judge module 20, according to schedule information and the current power control information of pH value, historical schedule information, historical power control information, this scheduling user terminal, is determined the current maximum transmission bandwidth that can support of user terminal;
Then, the current maximum transmission bandwidth that can support of preallocated transmission bandwidth and user terminal in the schedule information of this scheduling user terminal is compared;
When preallocated transmission bandwidth is not more than the current maximum transmission bandwidth that can support of user terminal in the schedule information of this scheduling user terminal, determine that the user terminal of this scheduling power limited can not occur;
When preallocated transmission bandwidth is greater than the current maximum transmission bandwidth that can support of user terminal in the schedule information of this scheduling user terminal, determine that power limited can occur the user terminal of this scheduling.
In specific implementation process, judge module 20 can be determined the current maximum transmission bandwidth that can support of user terminal according to following manner:
Adjust parameter according to the transmission bandwidth in the modulation coding mode MCS grade in pH value, historical schedule information, historical schedule information and the closed power in historical power control information, determine path loss values;
Adjust parameter according to the MCS grade in the schedule information of path loss values, this scheduling user terminal and the closed power in the current power control information, determine the current maximum transmission bandwidth that can support of user terminal.
Further, judge module 20 can be determined path loss values according to formula two:
Wherein, PL is path loss values, P
MAXFor the maximum transmission power of user terminal, M
PUSCH(j) be transmission bandwidth in historical schedule information, P
O_PUSCH(x) be the x class power parameter of user terminal, α is the path loss compensating factor of user terminal, Δ
TF(j) be power offset corresponding to MCS grade in historical schedule information, f (j) is that the closed power in historical power control information is adjusted parameter, and f (i) be the closed power adjustment parameter in the current power control information.
Judge module 20 can be determined the current maximum transmission bandwidth that can support of user terminal according to formula three:
Wherein, M
1 PUSCH(i) be the current maximum transmission bandwidth that can support of user terminal, P
MAXFor the maximum transmission power of user terminal, M
PUSCH(j) be transmission bandwidth in historical schedule information, P
O_PUSCH(x) be the x class power parameter of user terminal, α is the path loss compensating factor of user terminal, and f (j) is that the closed power in historical power control information is adjusted parameter, Δ
TF(i) be power offset corresponding to MCS grade in the schedule information of this scheduling user terminal, f (i) is that the closed power in the current power control information is adjusted parameter.
need to prove, the embodiment of the present invention is not limited to and adopts formula two to determine path loss values, and adopt formula three to determine the mode of the current maximum transmission bandwidth that can support of user terminal, other can be according to pH value, modulation coding mode MCS grade in historical schedule information, transmission bandwidth in historical schedule information and the closed power in historical power control information are adjusted parameter and are determined path loss values, and according to path loss values, MCS grade in the schedule information of this scheduling user terminal and the closed power in the current power control information are adjusted parameter, determine the applicable equally embodiment of the present invention of mode of the current maximum transmission bandwidth that can support of user terminal.
Accordingly, when power limited can not occur at the user terminal of determining this scheduling in bandwidth determination module 30, the transmission bandwidth of actual allocated during as this scheduling user terminal with preallocated transmission bandwidth in the schedule information of this scheduling user terminal;
When power limited can occur in the user terminal of determining this scheduling, the transmission bandwidth of actual allocated during as this scheduling user terminal with the current maximum transmission bandwidth that can support of user terminal determined.
Mode two, the power increment of the pH value of user terminal and user terminal is compared, judge whether the user terminal of this scheduling power limited can occur.
Concrete, judge module 20, according to schedule information and the current power control information of pH value, historical schedule information, historical power control information, this scheduling user terminal, is determined the power increment of user terminal;
Then, the power increment of the pH value of user terminal and user terminal is compared;
When the power increment of user terminal is not more than the pH value of user terminal, determine that the user terminal of this scheduling power limited can not occur;
During greater than the pH value of user terminal, determine that power limited can occur the user terminal of this scheduling at the power increment of user terminal.
In specific implementation process, judge module 20 can be determined according to formula four power increment of user terminal:
Δ P=10log
10(M
PUSCH(i))+Δ
TF(i)+f (i)-10log
10(M
PUSCH(j))-Δ
TF(j)-f (j) .. formula four.
Wherein: Δ P is the power increment of user terminal; M
PUSCH(i) be preallocated transmission bandwidth in the schedule information of this scheduling user terminal; Δ
TF(i) be power offset corresponding to MCS grade in the schedule information of this scheduling user terminal; F (i) is that the closed power in the current power control information is adjusted parameter; M
PUSCH(j) be transmission bandwidth in historical schedule information; Δ
TF(j) be power offset corresponding to MCS grade in historical schedule information; F (j) is that the closed power in historical power control information is adjusted parameter.
Need to prove, the embodiment of the present invention is not limited to the mode that adopts formula four to determine power increment, other can be according to schedule information and the current power control information of pH value, historical schedule information, historical power control information, this scheduling user terminal, determine the power increment of user terminal, determine the applicable equally embodiment of the present invention of mode of power increment.
Accordingly, when power limited can not occur at the user terminal of determining this scheduling in bandwidth determination module 30, the transmission bandwidth of actual allocated during as this scheduling user terminal with preallocated transmission bandwidth in the schedule information of this scheduling user terminal;
When power limited can occur in the user terminal of determining this scheduling, according to schedule information and the current power control information of pH value, historical schedule information, historical power control information, this scheduling user terminal, the transmission bandwidth of actual allocated while determining this scheduling user terminal.
Wherein, when power limited can occur in definite current pre-allocation of resources result, the transmission bandwidth of actual allocated when bandwidth determination module 30 can be determined this scheduling user terminal according to formula five:
Wherein: M
2 PUSCHThe transmission bandwidth of actual allocated while (i) being this scheduling user terminal; PH is the power surplus value of user terminal; Δ
TF(i) be power offset corresponding to MCS grade in the schedule information of this scheduling user terminal; F (i) is that the closed power in the current power control information is adjusted parameter; M
PUSCH(j) be transmission bandwidth in historical schedule information; Δ
TF(j) be power offset corresponding to MCS grade in historical schedule information; F (j) is that the closed power in historical power control information is adjusted parameter; J＜i.
Need to prove, the embodiment of the present invention is not limited to the mode of the transmission bandwidth of actual allocated while adopting formula five to determine this scheduling user terminal, other can be according to schedule information and the current power control information of pH value, historical schedule information, historical power control information, this scheduling user terminal, the applicable equally embodiment of the present invention of the mode of the transmission bandwidth of actual allocated while determining this scheduling user terminal.
In concrete enforcement, notification module 40 is except the transmission bandwidth informing user terminal of the actual allocated that bandwidth determination module 30 is definite, can also be with the MCS grade informing user terminal in the schedule information of this scheduling user terminal, can also be with running time-frequency resource position informing user terminal.
The network equipment of the embodiment of the present invention can be base station (such as macro base station, evolution base station, Home eNodeB etc.), can also be RN (relaying) equipment, can also be other network equipment.
As shown in Figure 2, the embodiment of the present invention distributes the method for uplink shared resources to comprise the following steps:
Wherein, can further include before step 202:
, according to uplink channel information (such as CQI information, CSI (channel condition information)) and the BSR (buffer status report) of user terminal, determine preallocated transmission bandwidth in the schedule information of MCS grade and this scheduling user terminal in the schedule information of this scheduling user terminal.
Concrete, according to predefined up channel information and the mapping relations of MCS grade, determine the MCS grade corresponding to uplink channel information of user terminal, then network side obtains user terminal data volume waiting for transmission from BSR, according to data volume waiting for transmission, the MCS grade of determining, and current available resource information, determine preallocated transmission bandwidth in the schedule information of this scheduling user terminal.
Such as selecting suitable resource as preallocated transmission bandwidth according to designed resource distribution principle:
, according to the transmittability on each Resource Block of MCS classification on each Resource Block (being the data volume that each Resource Block can carry), according to current available resource information, according to the algorithm (as direct ratio fair algorithm, max carrier to interference algorithm etc.) of design, select appropriate resources; If the data volume that all available resources can be carried, less than or equal to the data volume of this user terminal band transmission, is distributed to this user terminal with all available resources; Select the highest M of a priority Resource Block as preallocated resource otherwise according to selected algorithm, select from all Resource Block.Wherein M is according in the definite Resource Block priority query of selected algorithm, according to the least resource piece number of definite all the data to be transmitted amounts of user of carrying of priority order from high to low.
Further, can also configure the power parameter of rrc layer to user terminal according to network side before step 202, and the historical signal to noise ratio information of this user terminal of receiving of network side, determine current power control information.
In implementation process, the up BSR of user terminal is by user terminal to send up; The up CQI of user terminal can be user terminal to send up, can be also to determine after network side is measured.
Need to prove, the embodiment of the present invention is not limited to aforesaid way, and other can determine that in the schedule information of this scheduling user terminal, the mode of MCS grade and preallocated transmission bandwidth all is suitable for the embodiment of the present invention.
Wherein, the pH value of user terminal to send up is to determine according to the resource of network side distribution in the past, that is to say that each pH value can a corresponding historical schedule information and a historical power control information.
Whether PHR reports and trigger is to be determined by the trigger condition of user terminal, in fact network side might not know whether active user's terminal can trigger PHR and report, and be only after receiving the PHR information of terminal to report, determine that by the anti-sequential relationship of looking into the schedule information of using in this PHR is which time scheduling is determined, the power control information of use in which subframe is determined.
In step 201, can, according to sequential relationship, determine historical schedule information and historical power control information that pH value is corresponding.Such as network side after A has distributed resource for user terminal constantly, if meeting PHR, user terminal triggers the condition that reports, can determine that network side receives the pH value of user terminal to send up constantly at B according to sequential relationship, constantly receive at B after the pH value of user terminal to send up just know this pH value corresponding be the resource that A distributes constantly.
If in the A moment and B, also need for the user terminal Resources allocation constantly, information determination module 10 can be determined corresponding historical schedule information and the historical power control information of pH value that A received constantly.Before determining that preferably A is constantly, and constantly nearest information corresponding to pH value of distance A.
If the pH value of not receiving the pH value of user terminal to send up or reporting is apart from the threshold value of current time greater than setting, can distribute based on the uplink channel information of user terminal, the up resource that needs the data amount information that transmits, each subframe uplink available resource information etc. to carry out Uplink Shared Channel, determine the uplink transmission resource (comprising uplink bandwidth, running time-frequency resource position and the information such as MCS grade of supporting on the running time-frequency resource of scheduling) of each time of user terminal scheduling.
Wherein, in step 202, the mode whether user terminal that judges this scheduling power limited can occur has a lot, below enumerates several:
Mode one, the current maximum transmission bandwidth that can support of preallocated transmission bandwidth and user terminal in the schedule information of this scheduling user terminal is compared, judge whether the user terminal of this scheduling power limited can occur.
Concrete, step 202 can further include:
Step a202, according to schedule information and the current power control information of pH value, historical schedule information, historical power control information, this scheduling user terminal, determine the current maximum transmission bandwidth that can support of user terminal;
Step b202, the current maximum transmission bandwidth that can support of preallocated transmission bandwidth and user terminal in the schedule information of this scheduling user terminal is compared; When preallocated transmission bandwidth is not more than the current maximum transmission bandwidth that can support of user terminal in the schedule information of this scheduling user terminal, determine that the user terminal of this scheduling power limited can not occur; When preallocated transmission bandwidth is greater than the current maximum transmission bandwidth that can support of user terminal in the schedule information of this scheduling user terminal, determine that power limited can occur the user terminal of this scheduling.
In specific implementation process, step a202 can further include:
Step S1, according to the transmission bandwidth in the modulation coding mode MCS grade in pH value, historical schedule information, historical schedule information and the closed power in historical power control information, adjust parameter, determine path loss values;
Step S2, according to the MCS grade in the schedule information of path loss values, this scheduling user terminal and the closed power in the current power control information, adjust parameter, determine the current maximum transmission bandwidth that can support of user terminal.
Further, in step S1, can determine path loss values according to formula two.
In step S2, can determine the current maximum transmission bandwidth that can support of user terminal according to formula three.
need to prove, the embodiment of the present invention is not limited to and adopts formula two to determine path loss values, and adopt formula three to determine the mode of the current maximum transmission bandwidth that can support of user terminal, other can be according to pH value, modulation coding mode MCS grade in historical schedule information, transmission bandwidth in historical schedule information and the closed power in historical power control information are adjusted parameter and are determined path loss values, and according to path loss values, MCS grade in the schedule information of this scheduling user terminal and the closed power in the current power control information are adjusted parameter, determine the applicable equally embodiment of the present invention of mode of the current maximum transmission bandwidth that can support of user terminal.
Accordingly, in step 203, when power limited can not occur in the user terminal of determining this scheduling, the transmission bandwidth of actual allocated during as this scheduling user terminal with preallocated transmission bandwidth in the schedule information of this scheduling user terminal;
When power limited can occur in the user terminal of determining this scheduling, the transmission bandwidth of actual allocated during as this scheduling user terminal with the current maximum transmission bandwidth that can support of user terminal determined.
Mode two, the power increment of the pH value of user terminal and user terminal is compared, judge whether the user terminal of this scheduling power limited can occur.
Concrete, step 202 can further include:
Step c202, according to schedule information and the current power control information of pH value, historical schedule information, historical power control information, this scheduling user terminal, determine the power increment of user terminal.
In step c202, can determine according to formula four power increment of user terminal.
Need to prove, the embodiment of the present invention is not limited to the mode that adopts formula four to determine power increment, other can be according to schedule information and the current power control information of pH value, historical schedule information, historical power control information, this scheduling user terminal, determine the power increment of user terminal, determine the applicable equally embodiment of the present invention of mode of power increment.
Accordingly, in step 203, when power limited can not occur in the user terminal of determining this scheduling, the transmission bandwidth of actual allocated during as this scheduling user terminal with preallocated transmission bandwidth in the schedule information of this scheduling user terminal;
When power limited can occur in the user terminal of determining this scheduling, according to schedule information and the current power control information of pH value, historical schedule information, historical power control information, this scheduling user terminal, the transmission bandwidth of actual allocated while determining this scheduling user terminal.
Wherein, in step 203, when power limited can occur in definite current pre-allocation of resources result, the transmission bandwidth of actual allocated in the time of can determining this scheduling user terminal according to formula five.
Need to prove, the embodiment of the present invention is not limited to the mode of the transmission bandwidth of actual allocated while adopting formula five to determine this scheduling user terminal, other can be according to schedule information and the current power control information of pH value, historical schedule information, historical power control information, this scheduling user terminal, the applicable equally embodiment of the present invention of the mode of the transmission bandwidth of actual allocated while determining this scheduling user terminal.
In step 203, except the transmission bandwidth informing user terminal of the actual allocated that will determine, can also be with the MCS grade informing user terminal in the schedule information of this scheduling user terminal, can also be with running time-frequency resource position informing user terminal.
The executive agent of the embodiment of the present invention can be base station (such as macro base station, evolution base station, Home eNodeB etc.), can also be RN equipment, can also be other network equipment.
Below employing mode one and mode two judge that whether the user terminal of this scheduling power limited can occur is that example describes, the scheme of other judgment modes and Fig. 3 and Fig. 4 is similar, does not repeat them here.
As shown in Figure 3, the method for embodiment of the present invention the first adjustment ascending resource comprises the following steps:
Parameter is adjusted according to the transmission bandwidth in the modulation coding mode MCS grade in pH value, historical schedule information, historical schedule information and the closed power in historical power control information in step 302, base station, determines path loss values.
Parameter is adjusted according to the MCS grade in the schedule information of path loss values, this scheduling user terminal and the closed power in the current power control information in step 303, base station, determines the current maximum transmission bandwidth that can support of user terminal.
MCS grade when step 307, base station send this scheduling user terminal to user terminal in the schedule information of the transmission bandwidth of actual allocated and this scheduling user terminal.
As shown in Figure 4, the method for embodiment of the present invention the second adjustment ascending resource comprises the following steps:
MCS grade when step 406, base station send this scheduling user terminal to user terminal in the schedule information of the transmission bandwidth of actual allocated and this scheduling user terminal.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, implement software example or in conjunction with the form of the embodiment of software and hardware aspect fully.And the present invention can adopt the form that wherein includes the upper computer program of implementing of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code one or more.
The present invention describes with reference to flow chart and/or the block diagram of method, equipment (system) and computer program according to the embodiment of the present invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out by the processor of computer or other programmable data processing device produce to be used for the device of realizing in the function of flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is realized the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device, make on computer or other programmable devices and to carry out the sequence of operations step to produce computer implemented processing, thereby be provided for realizing the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame in the instruction of carrying out on computer or other programmable devices.
Although described the preferred embodiments of the present invention, in a single day those skilled in the art obtain the basic creative concept of cicada, can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
Can find out from above-described embodiment: the embodiment of the present invention is determined historical schedule information and the historical power control information that the pH value of user terminal to send up is corresponding; , according to schedule information and the current power control information of pH value, historical schedule information, historical power control information, this scheduling user terminal, judge whether the user terminal of this scheduling power limited can occur; According to judged result, the transmission bandwidth of actual allocated while determining this scheduling user terminal, and with the transmission bandwidth informing user terminal of actual allocated.
because the embodiment of the present invention can be according to the pH value of user terminal to send up, whether the user terminal that judges this scheduling power limited can occur, and according to judged result, the transmission bandwidth of actual allocated while determining this scheduling user terminal, avoid because base station assigns is very large to the Resource Block of user terminal, the inadequate situation (guaranteeing that namely user terminal not there will be the limited situation of uplink transmission power) of transmitting power that user terminal likely occurs, thereby improved the power spectral density on the uplink shared resources, improve the service quality of each uplink service of user terminal, capacity,
Further under the prerequisite of the signal to noise ratio size that guarantees the uplink transmission data piece, reduced the Block Error Rate of uplink data block;
Further also reduce retransmission delay time, guaranteed the QoS of user terminal uplink service.
Obviously, those skilled in the art can carry out various changes and modification and not break away from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention also is intended to comprise these changes and modification interior.
Claims (20)
1. a method of distributing uplink shared resources, is characterized in that, the method comprises:
Determine corresponding historical schedule information and the historical power control information of power residue pH value of user terminal to send up;
Schedule information and current power control information according to described pH value, described historical schedule information, described historical power control information, the described user terminal of this scheduling, judge whether the user terminal of this scheduling power limited can occur;
According to judged result, the transmission bandwidth of actual allocated while determining the described user terminal of this scheduling, and with the transmission bandwidth of described actual allocated, notify described user terminal;
Wherein, described current power control information is according to the power parameter of network side configuration rrc layer to user terminal, and the historical signal to noise ratio information of this user terminal of receiving of network side is determined.
2. the method for claim 1, is characterized in that, whether the described user terminal that judges this scheduling power limited can occur comprises:
, according to schedule information and the current power control information of described pH value, described historical schedule information, described historical power control information, the described user terminal of this scheduling, determine the current maximum transmission bandwidth that can support of described user terminal;
Preallocated transmission bandwidth and the current maximum transmission bandwidth that can support of described user terminal in the schedule information of the described user terminal of this scheduling are compared;
When preallocated transmission bandwidth is not more than the current maximum transmission bandwidth that can support of described user terminal in the schedule information of the described user terminal of this scheduling, determine that the user terminal of this scheduling power limited can not occur;
When preallocated transmission bandwidth is greater than the current maximum transmission bandwidth that can support of described user terminal in the schedule information of the described user terminal of this scheduling, determine that power limited can occur the user terminal of this scheduling.
3. method as claimed in claim 2, is characterized in that, the described definite current maximum transmission bandwidth that can support of described user terminal comprises:
Adjust parameter according to the modulation coding mode MCS grade in described pH value, described historical schedule information, transmission bandwidth in described historical schedule information and the closed power in described historical power control information, determine path loss values;
Adjust parameter according to MCS grade and the closed power in described current power control information in the schedule information of described path loss values, the described user terminal of this scheduling, determine the current maximum transmission bandwidth that can support of described user terminal.
4. method as claimed in claim 3, is characterized in that, according to following formula, determines path loss values:
Determine the current maximum transmission bandwidth that can support of described user terminal according to following formula:
Wherein, PL is path loss values, M
1 PUSCH(i) be the current maximum transmission bandwidth that can support of user terminal, P
MAXFor the maximum transmission power of user terminal, M
PUSCH(j) be transmission bandwidth in historical schedule information, P
O_PUSCH(x) be the x class power parameter of user terminal, α is the path loss compensating factor of user terminal, Δ
TF(j) be power offset corresponding to MCS grade in historical schedule information, f (j) is that the closed power in historical power control information is adjusted parameter, Δ
TF(i) be power offset corresponding to MCS grade in the schedule information of this scheduling user terminal, f (i) is that the closed power in the current power control information is adjusted parameter.
5. method as claimed in claim 2, is characterized in that, during the described user terminal of described definite this scheduling, the transmission bandwidth of actual allocated comprises:
When power limited can not occur in the user terminal of determining this scheduling, the transmission bandwidth of actual allocated during as the described user terminal of this scheduling with preallocated transmission bandwidth in the schedule information of the described user terminal of this scheduling;
When power limited can occur in the user terminal of determining this scheduling, the transmission bandwidth of actual allocated when the current maximum transmission bandwidth that can support of described user terminal of determining is dispatched described user terminal as this.
6. the method for claim 1, is characterized in that, the situation whether user terminal of described definite this scheduling power limited can occur comprises:
, according to schedule information and the current power control information of described pH value, described historical schedule information, described historical power control information, the described user terminal of this scheduling, determine the power increment of described user terminal;
The power increment of the pH value of described user terminal and described user terminal is compared;
When the power increment of described user terminal is not more than the pH value of described user terminal, determine that the user terminal of this scheduling power limited can not occur;
During greater than the pH value of described user terminal, determine that power limited can occur the user terminal of this scheduling at the power increment of described user terminal.
7. method as claimed in claim 6, is characterized in that, determines the power increment of described user terminal according to following formula:
ΔP＝10log
10(M
PUSCH(i))+Δ
TF(i)+f(i)-10log
10(M
PUSCH(j))-Δ
TF(j)-f(j)
Wherein: Δ P is the power increment of user terminal; M
PUSCH(i) be preallocated transmission bandwidth in the schedule information of this scheduling user terminal; Δ
TF(i) be power offset corresponding to MCS grade in the schedule information of this scheduling user terminal; F (i) is that the closed power in the current power control information is adjusted parameter; M
PUSCH(j) be transmission bandwidth in historical schedule information; Δ
TF(j) be power offset corresponding to MCS grade in historical schedule information; F (j) is that the closed power in historical power control information is adjusted parameter.
8. method as claimed in claim 6, is characterized in that, during the described user terminal of described definite this scheduling, the transmission bandwidth of actual allocated comprises:
When power limited can not occur in the user terminal of determining this scheduling, the transmission bandwidth of actual allocated when preallocated transmission bandwidth in the schedule information of this scheduling user terminal is dispatched described user terminal as this;
When power limited can occur in the user terminal of determining this scheduling, according to schedule information and the current power control information of described pH value, described historical schedule information, described historical power control information, the described user terminal of this scheduling, the transmission bandwidth of actual allocated while determining the described user terminal of this scheduling.
9. method as claimed in claim 8, is characterized in that, when power limited can occur in definite current pre-allocation of resources result, and the transmission bandwidth of actual allocated while according to following formula, determining the described user terminal of this scheduling:
Wherein: M
2 PUSCHThe transmission bandwidth of actual allocated during (i) for the described user terminal of this scheduling; PH is the power surplus value of user terminal; Δ
TF(i) be power offset corresponding to MCS grade in the schedule information of this scheduling user terminal; F (i) is that the closed power in the current power control information is adjusted parameter; M
PUSCH(j) be transmission bandwidth in historical schedule information; Δ
TF(j) be power offset corresponding to MCS grade in historical schedule information; F (j) is that the closed power in historical power control information is adjusted parameter; J＜i.
10. method as described in claim 5 or 8, it is characterized in that,, according to uplink channel information and the buffer status report BSR of user terminal, determine preallocated transmission bandwidth in the schedule information of the described user terminal of MCS grade and this scheduling in schedule information of the described user terminal of this scheduling.
11. a network equipment, is characterized in that, this network equipment comprises:
The information determination module, be used for determining that the power of user terminal to send up remains corresponding historical schedule information and the historical power control information of pH value;
Judge module, be used for schedule information and current power control information according to described pH value, described historical schedule information, described historical power control information, the described user terminal of this scheduling, judges whether the user terminal of this scheduling power limited can occur;
The bandwidth determination module, be used for according to judged result, the transmission bandwidth of actual allocated while determining the described user terminal of this scheduling;
Notification module, be used for notifying described user terminal with the transmission bandwidth of described actual allocated;
Wherein, described current power control information is according to the power parameter of network side configuration rrc layer to user terminal, and the historical signal to noise ratio information of this user terminal of receiving of network side is determined.
12. network equipment as claimed in claim 11, is characterized in that, described judge module specifically is used for:
, according to schedule information and the current power control information of described pH value, described historical schedule information, described historical power control information, the described user terminal of this scheduling, determine the current maximum transmission bandwidth that can support of described user terminal; Preallocated transmission bandwidth and the current maximum transmission bandwidth that can support of described user terminal in the schedule information of the described user terminal of this scheduling are compared; When preallocated transmission bandwidth is not more than the current maximum transmission bandwidth that can support of described user terminal in the schedule information of the described user terminal of this scheduling, determine that the user terminal of this scheduling power limited can not occur; When preallocated transmission bandwidth is greater than the current maximum transmission bandwidth that can support of described user terminal in the schedule information of the described user terminal of this scheduling, determine that power limited can occur the user terminal of this scheduling.
13. network equipment as claimed in claim 12, is characterized in that, described judge module also is used for:
Adjust parameter according to the modulation coding mode MCS grade in described pH value, described historical schedule information, transmission bandwidth in described historical schedule information and the closed power in described historical power control information, determine path loss values; Adjust parameter according to MCS grade and the closed power in described current power control information in the schedule information of described path loss values, the described user terminal of this scheduling, determine the current maximum transmission bandwidth that can support of described user terminal.
14. network equipment as claimed in claim 13, is characterized in that, described judge module is determined path loss values according to following formula:
Described judge module is determined the current maximum transmission bandwidth that can support of described user terminal according to following formula:
Wherein, PL is path loss values, M
1 PUSCH(i) be the current maximum transmission bandwidth that can support of user terminal, P
MAXFor the maximum transmission power of user terminal, M
PUSCH(j) be transmission bandwidth in historical schedule information, P
O_PUSCH(x) be the x class power parameter of user terminal, α is the path loss compensating factor of user terminal, Δ
TF(j) be power offset corresponding to MCS grade in historical schedule information, f (j) is that the closed power in historical power control information is adjusted parameter, Δ
TF(i) be power offset corresponding to MCS grade in the schedule information of this scheduling user terminal, f (i) is that the closed power in the current power control information is adjusted parameter.
15. network equipment as claimed in claim 12, is characterized in that, described bandwidth determination module specifically is used for:
When power limited can not occur in the user terminal of determining this scheduling, the transmission bandwidth of actual allocated during as the described user terminal of this scheduling with preallocated transmission bandwidth in the schedule information of the described user terminal of this scheduling; When power limited can occur in the user terminal of determining this scheduling, the transmission bandwidth of actual allocated when the current maximum transmission bandwidth that can support of described user terminal of determining is dispatched described user terminal as this.
16. network equipment as claimed in claim 11, is characterized in that, described judge module specifically is used for:
, according to schedule information and the current power control information of described pH value, described historical schedule information, described historical power control information, the described user terminal of this scheduling, determine the power increment of described user terminal; The power increment of the pH value of described user terminal and described user terminal is compared; When the power increment of described user terminal is not more than the pH value of described user terminal, determine that the user terminal of this scheduling power limited can not occur; During greater than the pH value of described user terminal, determine that power limited can occur the user terminal of this scheduling at the power increment of described user terminal.
17. network equipment as claimed in claim 16, is characterized in that, described judge module is determined the power increment of described user terminal according to following formula:
ΔP＝10log
10(M
PUSCH(i))+Δ
TF(i)+f(i)-10log
10(M
PUSCH(j))-Δ
TF(j)-f(j)
Wherein: Δ P is the power increment of user terminal; M
PUSCH(i) be preallocated transmission bandwidth in the schedule information of this scheduling user terminal; Δ
TF(i) be power offset corresponding to MCS grade in the schedule information of this scheduling user terminal; F (i) is that the closed power in the current power control information is adjusted parameter; M
PUSCH(j) be transmission bandwidth in historical schedule information; Δ
TF(j) be power offset corresponding to MCS grade in historical schedule information; F (j) is that the closed power in historical power control information is adjusted parameter.
18. network equipment as claimed in claim 16, is characterized in that, described bandwidth determination module specifically is used for:
When power limited can not occur in the user terminal of determining this scheduling, the transmission bandwidth of actual allocated when preallocated transmission bandwidth in the schedule information of this scheduling user terminal is dispatched described user terminal as this; When power limited can occur in the user terminal of determining this scheduling, according to schedule information and the current power control information of described pH value, described historical schedule information, described historical power control information, the described user terminal of this scheduling, the transmission bandwidth of actual allocated while determining the described user terminal of this scheduling.
19. network equipment as claimed in claim 18, it is characterized in that, when power limited can occur in definite current pre-allocation of resources result, the transmission bandwidth of actual allocated when described bandwidth determination module is determined the described user terminal of this scheduling according to following formula:
Wherein: M
2 PUSCHThe transmission bandwidth of actual allocated during (i) for the described user terminal of this scheduling; PH is the power surplus value of user terminal; Δ
TF(i) be power offset corresponding to MCS grade in the schedule information of this scheduling user terminal; F (i) is that the closed power in the current power control information is adjusted parameter; M
PUSCH(j) be transmission bandwidth in historical schedule information; Δ
TF(j) be power offset corresponding to MCS grade in historical schedule information; F (j) is that the closed power in historical power control information is adjusted parameter; J＜i.
20. network equipment as described in claim 15 or 18, is characterized in that, described network equipment also comprises:
Processing module, be used for uplink channel information and buffer status report BSR according to user terminal, determines preallocated transmission bandwidth in the schedule information of MCS grade and the described user terminal of this scheduling in schedule information of the described user terminal of this scheduling.
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| CN102647796B (en) * | 2011-02-21 | 2015-05-20 | 中兴通讯股份有限公司 | Method and device for upstream resource allocation |
| CN103581959B (en) * | 2012-07-27 | 2017-07-28 | 华为技术有限公司 | It is a kind of to improve the method, apparatus and system of cell downlink covering |
| CN103188814B (en) * | 2013-04-09 | 2015-10-28 | 大唐移动通信设备有限公司 | Resource regulating method and the system of CRS power is improved in LTE system |
| KR20160040197A (en) * | 2013-08-06 | 2016-04-12 | 소니 주식회사 | Infrastructure equipment, wireless communications network and method |
| CN105992326B (en) * | 2015-01-27 | 2019-05-07 | 成都鼎桥通信技术有限公司 | Poewr control method and device |
| CN106998583A (en) * | 2016-01-22 | 2017-08-01 | 中兴通讯股份有限公司 | Poewr control method and device |
| US10285107B2 (en) | 2016-09-08 | 2019-05-07 | Apple Inc. | Dynamic coverage mode switching and communication bandwidth adjustment |
| WO2018171704A1 (en) * | 2017-03-24 | 2018-09-27 | Huawei Technologies Co., Ltd. | Systems and method of power control for uplink transmissions |
| CN109698733B (en) * | 2017-10-24 | 2021-10-08 | 普天信息技术有限公司 | Method and device for adjusting uplink modulation and coding strategy MCS |
| CN111294815B (en) * | 2018-12-06 | 2022-11-22 | 中国移动通信集团陕西有限公司 | Method and device for determining uplink limitation |
| CN113326130B (en) * | 2021-05-31 | 2022-07-12 | 北京邮电大学 | Resource allocation method and device |
| CN113438118A (en) * | 2021-08-02 | 2021-09-24 | 北京金山云网络技术有限公司 | Method and device for adjusting data transmission bandwidth, computer equipment and storage medium |
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