CN102625436B - Authorized power acquiring method, apparatus and base station - Google Patents

Abstract

The present invention provides a method, device and base station for obtaining authorized power. The method includes: obtaining the remaining data volume of the UE according to the received E-PUCH; when the remaining data volume of the UE is greater than one MAC-dPDU, judging whether the first data volume carried by the E-PUCH is less than the authorized data corresponding to the current authorized power amount; when the judgment result is that the first data amount is less than the authorized data amount, obtain the first authorized power corresponding to the first data amount; obtain the next authorized power according to the first authorized power and the current authorized power. By adopting the technical solution of the invention, the accuracy of the power authorized to the UE can be improved, and the problem of power control divergence caused by the inability of the NodeB to know the code rate limit information of the UE in the prior art can be overcome.

Description

Authorized power acquisition method, device and base station

technical field

The present invention relates to wireless communication technology, in particular to a method, device and base station for obtaining authorized power.

Background technique

High Speed Uplink Packet Access (HSUPA for short) adopts multi-code transmission, Hybrid Automatic Repeat Request (HARQ for short), fast scheduling based on base station (NodeB), etc. The key technology greatly enhances the data service carrying capacity and spectrum utilization of the uplink.

Among them, NodeB-based fast scheduling mainly refers to moving the resource scheduling function from the radio network controller (Radio Network Controller; abbreviated as: RNC) to the NodeB, and the NodeB based on the current user equipment (User Equipment; abbreviated as: UE) Channel conditions and user fairness are used to control the allocation of shared resources. The NodeB allocates resources according to the scheduling request information reported by the UE, and the allocated resources include time slots, code channels, and power grants. In HSUPA, UE can limit its maximum code rate according to the resource parameters, power and other information authorized by NodeB, combined with the current downlink code rate scheduling indication information of each cell and its remaining available power information. For example, according to the agreement, when the number of time slots is 1 and 2, the UE can send the largest transport block (Transport Block; referred to as: TB block) with sizes of 2720 and 5220 respectively, but due to the code rate limit of the UE itself, the sending The largest terabyte block might only be 2367 or 4650.

Among them, in order to ensure a certain block error rate, the greater the code rate, the greater the power authorization required. For UEs with code rate restrictions, the power authorization does not need to be greater than the authorization required by the maximum code rate of the UE. However, since the NodeB cannot know the maximum code rate restriction information of the UE, when the NodeB performs authorization according to the schedule information (referred to as: SI) reported by the UE, the authorized power will be greater than the power required by the maximum code rate of the UE. When the power authorized by the NodeB to the UE exceeds the power required by the maximum code rate of the UE, the UE will use the transmit power corresponding to the maximum code rate to send uplink data with the TB block size corresponding to the maximum code rate; at this time, the power authorized by the NodeB to the UE Inconsistent with the actual transmit power, the NodeB still estimates the Pe-base signal-to-noise ratio (Signal to Noise Ratio; referred to as: SNR) according to the authorized power when performing power control, so that the estimated SNR on the NodeB side is smaller than the actual SNR and smaller than the actual SNR. The SNR target value, so the NodeB will continue to ask the UE to increase the closed-loop power component (Pe-base) through the power control command word, causing the power control to diverge.

Contents of the invention

The present invention provides a method, device and base station for obtaining authorized power, which are used to solve the problem of power control divergence caused by the inability of NodeB to obtain code rate limit information of UE in the prior art, and improve the accuracy of authorized power.

The present invention provides a method for obtaining authorized power, including:

Acquiring the remaining data volume of the user equipment by enhancing the physical uplink channel of the dedicated channel according to the received scheduling;

When the remaining data volume of the user equipment is greater than one MAC-d protocol data unit, determine whether the first data volume carried by the enhanced scheduling dedicated channel physical uplink channel is less than the authorized data volume corresponding to the first authorized power;

When the judgment result is that the first data volume is less than the authorized data volume, acquiring a second authorized power corresponding to the first data volume;

Acquire a third authorized power according to the first authorized power and the second authorized power.

The present invention provides an authorized power acquisition device, including:

The first acquisition module is configured to acquire the remaining data volume of the user equipment according to the received scheduled enhanced dedicated channel physical uplink channel;

A first judging module, configured to judge whether the first data amount carried by the enhanced scheduling dedicated channel physical uplink channel is less than the first authorized power corresponding authorized data volume;

A second acquiring module, configured to acquire a second authorized power corresponding to the first data amount when the judgment result of the first judging module is that the first data amount is smaller than the authorized data amount;

A third obtaining module, configured to obtain a third authorized power according to the first authorized power and the second authorized power.

The present invention provides a base station, including any device for obtaining authorized power provided by the present invention.

In the authorized power acquisition method, device and base station provided by the present invention, the NodeB learns that the UE still has data to send according to the scheduling enhanced dedicated channel physical uplink channel of the UE, and enhances the dedicated channel according to the received scheduling under the condition that the UE has data to send The first amount of data carried by the physical uplink channel estimates the second authorized power required by the UE to send the first amount of data, and according to the second authorized power required by the UE and the first authorized power currently authorized to the UE, obtain the The third authorized power of the UE. Compared with the prior art, the technical solution of the present invention obtains the authorized power required by the UE through the received data amount carried by the physical uplink channel of the enhanced scheduling dedicated channel, and determines the authorized power to the UE in combination with the authorized power required by the UE, thereby improving The accuracy of the power authorized to the UE is ensured, and the power authorized to the UE is associated with the code rate limit of the UE. Therefore, the problem of power control divergence caused by the inability of the NodeB to obtain the code rate limit information of the UE in the prior art is overcome. .

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a flowchart of a method for obtaining authorized power provided by Embodiment 1 of the present invention;

FIG. 2 is a flowchart of a method for obtaining authorized power provided in Embodiment 2 of the present invention;

Fig. 3 is a flowchart of an implementation method of step 24 in Fig. 2 provided by Embodiment 3 of the present invention;

FIG. 4 is a schematic structural diagram of an authorized power acquisition device provided in Embodiment 4 of the present invention;

FIG. 5 is a schematic structural diagram of an apparatus for obtaining authorized power according to Embodiment 5 of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

FIG. 1 is a flowchart of a method for obtaining authorized power according to Embodiment 1 of the present invention. As shown in Figure 1, the authorized power acquisition method in this embodiment includes:

Step 11. Obtain the remaining data volume of the UE according to the received scheduling Enhanced Dedicated Channel Physical Uplink Channel (Enhanced Dedicated Channel Physical Uplink Channel, referred to as: E-PUCH);

Among them, E-PUCH is a newly added uplink physical channel in HSUPA technology, which is an enhanced dedicated channel (Enhanced Dedicated Channel, referred to as: E-DCH) type coded composite transport channel (Coded Composite Transport Channel; referred to as: CCTrCH), It is used to bear uplink data of the UE. Among them, E-DCH has two media access control (Media Access Control; referred to as: MAC) sublayers: MAC-e and MAC-es. On top of MAC-e, MAC-es directly receives MAC-es Service Data Unit (Service Data Unit; referred to as: SDU) (that is, MAC-d Protocol Data Unit (Protocol Data Unit; referred to as: PDU)). Among them, MAC-es SDUs of the same size and from the same logical channel are multiplexed into one MAC-es PDU, multiple MAC-es PDUs of multiple logical channels are multiplexed into one MAC-e PDU, and each transmission time slot ( TransmissionTime Interval; referred to as: TTI) can only send one MAC-e PDU. Specifically, the UE sends data to the NodeB through the E-PUCH, and the NodeB receives the UE's data, and obtains whether the UE still has data to send according to the E-PUCH, that is, obtains the remaining data volume of the UE.

Among them, if there is enough remaining space in the E-DCH transport block or when SI needs to be sent, the SI can be carried at the end of the MAC-e PDU. Therefore, the UE can regularly send the SI to the NodeB through the E-PUCH, and the SI is used for Inform NodeB whether there is data to be sent, and how much data is yet to be sent. In this embodiment, the NodeB obtains the remaining data volume of the UE according to the E-PUCH, specifically according to the SI in the E-PUCH. Since the UE sends SI to the NodeB periodically, the E-PUCH currently received by the NodeB may or may not contain SI. Therefore, when the NodeB receives the E-PUCH, it first judges whether the E-PUCH contains SI; Status index; referred to as: TEBS-index) to obtain the remaining data volume of the UE, TEBS-index indicates the total amount of data to be transmitted on the E-DCH logical channel mapped to the UE, that is, the remaining data volume; when the E-PUCH is judged When the SI is not included, the NodeB obtains the last received SI, and according to the TEBS-index in the last received SI, obtains the amount of data to be sent by the UE when the SI is finally received, and the NodeB obtains the data received from the last received SI to the current moment. The amount of data received by the UE (that is, the second amount of data), and then, the NodeB will make a difference between the amount of data to be sent by the UE when the SI is finally received and the second amount of data, so as to obtain the remaining data amount of the UE at the current moment, that is, The amount of data the UE has yet to send.

Wherein, when the UE has no data to send (in this embodiment, the remaining data volume of the UE is less than one MAC-d PDU as an example), no matter whether the NodeB authorizes power to the UE or not, no matter how much power the NodeB authorizes to the UE, no power will appear. There is a problem of exceeding the maximum code rate limit. Therefore, for the case where the UE has no data to send, this embodiment does not limit the authorized power of the NodeB. The NodeB can use existing technical solutions to perform power authorization, such as not authorizing or authorizing a small power to the UE.

In this embodiment, it is assumed that the UE has data to send, that is, the remaining data volume of the UE is greater than or equal to one MAC-d PDU, and at this time, the subsequent steps can be continued.

Step 12. When the remaining data volume of the UE is greater than one MAC-d PDU, determine whether the first data volume carried by the E-PUCH is less than the authorized data volume corresponding to the first authorized power;

Wherein, when the first weight power refers to the power authorized by the NodeB to the UE before receiving the E-PUCH this time, that is, the authorized power corresponding to the E-PUCH received this time. The first data volume refers to the data volume carried by the received E-PUCH channel this time. Wherein, when the NodeB receives the E-PUCH of the UE, it will record and count the received data volume of the UE.

Wherein, when the authorized power (Power Resource Related Information; PRRI for short) of the NodeB is equal to the power corresponding to the maximum code rate of the UE, the actual transmission power required by the UE to send the E-PUCH is based on the authorized power of the NodeB, UE The closed-loop power component (Pe-base) and path loss calculation obtained by side maintenance. Among them, when the authorized power of the NodeB is greater than the power required by the maximum code rate of the UE, the UE will calculate the actual transmission power according to the power required by the maximum code rate, the maintained closed-loop power component and the path loss; in this case, the NodeB The second authorized power corresponding to the received first amount of data may be inconsistent with the authorized power of the NodeB (that is, the first authorized power). Wherein, the second authorized power refers to the power value required by the first data amount calculated according to the corresponding relationship between the authorized power of the NodeB and the authorized data amount, that is, the maximum code rate of the UE side when calculating the actual transmit power. required power.

From the above analysis, it can be seen that the actual transmit power on the UE side is related to the maximum code rate, and can also be considered to be related to the amount of data. Therefore, by judging the size relationship between the amount of data carried by the E-PUCH and the amount of data corresponding to the first authorized power (that is, the amount of authorized data), the NodeB can know whether the first authorized power is greater than the maximum code when calculating the actual transmit power. rate required power.

Step 13. When the judgment result is that the first data volume is less than the authorized data volume, obtain the second authorized power corresponding to the first data volume;

When the NodeB determines that the first data amount is less than the authorized data amount, it can know that the power required by the maximum code rate when the UE calculates the actual transmission power is less than the first authorized power, and the NodeB according to the data amount carried by the received E-PUCH (i.e. first data amount), to obtain the power required by the maximum code rate on the UE side, that is, the second authorized power corresponding to the first data amount. Wherein, the second authorized power corresponds to the normalized gain factor β0e, and the method for calculating the normalized gain factor β0e by the NodeB is as follows: the NodeB obtains the size of the data block actually carried by the E-PUCH (that is, the first data amount) through decoding, and according to Get the corresponding code rate according to the size of the data block, and then find out the β0e corresponding to the code rate in the code rate table. If the code rate does not exist in the code rate table, it needs to be calculated by interpolation. Wherein, the code rate table is configured by RNC and sent to UE and NodeB through signaling.

Step 14. Acquire a third authorized power according to the first authorized power and the second authorized power.

Wherein, the third authorized power refers to the authorized power adjusted by the NodeB according to the power required by the maximum code rate on the UE side, and the power that needs to be authorized to the UE in subsequent power authorization operations. Specifically, after the NodeB obtains the power required for the maximum code rate on the UE side (ie, the second authorized power), it obtains the first authorized power threshold according to formula (1); and obtains the third authorized power within the first authorized power threshold.

MaxLemdGrant’＝(1-P)*MaxLemdGrant+P*L (1)

Among them, MaxLemdGrant' represents the first authorized power threshold; MaxLemdGrant represents the second authorized power threshold; L represents the power required by the maximum code rate at the UE side calculated and obtained by the NodeB; P represents the forgetting factor, and 0=<P<=1. Wherein, the first authorized power threshold refers to the upper limit value of power corresponding to the third authorized power; the second authorized power threshold refers to the upper limit value of power corresponding to the first authorized power.

From the above formula (1), it can be seen that the NodeB adjusts the power upper limit corresponding to the first authorized power (i.e. the second authorized power threshold) according to the power required by the UE side maximum code rate, and obtains the first authorized power threshold; through the formula (1 ) after adjustment, the upper limit of the authorized power can be pulled closer to the power required by the maximum code rate on the UE side, and since the third authorized power cannot be greater than the first authorized power threshold, the third authorized power is closer to the maximum code rate required by the UE side. The required power improves the accuracy of authorized power.

Furthermore, it can be seen from the above formula (1) that as the value of the forgetting factor P increases, the power required for the maximum code rate at the UE side has a greater impact on the upper limit of the third authorized power issued by the NodeB to the UE , that is, the NodeB can adjust the degree of influence of the power required by the maximum code rate on the UE side on the third authorized power delivered to the UE by adjusting the size of the forgetting factor P, so as to fully consider the power required by the maximum code rate on the UE side. factor to improve the accuracy of the power granted to the UE.

In the authorized power acquisition method of this embodiment, the NodeB learns that the UE still has data to send according to the E-PUCH of the UE, and estimates the maximum code rate of the UE side according to the amount of data carried by the E-PUCH under the condition that the UE has data to send. The required power, according to the power required by the maximum code rate on the UE side and the authorized power corresponding to the E-PUCH received this time, obtains the subsequent power that should be authorized to the UE. Compared with the prior art, the NodeB in this embodiment obtains the power required for the maximum code rate on the UE side according to the amount of data received from the UE, and determines the power authorized to the UE in combination with the rate required by the maximum code rate on the UE side. Considering the factor of the maximum code rate on the UE side, the accuracy of the power authorized to the UE is improved, and the problem of power control divergence caused by the inability of the NodeB to know the code rate limit information of the UE in the prior art is overcome. Furthermore, because the NodeB improves the accuracy of the authorized power, the UE can use the appropriate power to send data, avoiding the waste of power caused by using a large transmission power, reducing the interference to the local cell or neighboring cells, and reducing the interference to the local cell and neighboring cells. Thermal noise rise (Rise Of Thermal; abbreviated as: RoT) of the cell.

FIG. 2 is a flowchart of a method for obtaining authorized power according to Embodiment 2 of the present invention. This embodiment can be implemented based on Embodiment 1, and the similarities will not be repeated. As shown in FIG. 2, the method for obtaining authorized power in this embodiment includes:

Step 21. According to the received E-PUCH, obtain the remaining data volume of the UE;

Specifically, the UE sends data to the NodeB through the E-PUCH, and the NodeB receives the UE's data, and obtains whether the UE still has data to send according to the SI in the E-PUCH, that is, obtains the remaining data volume of the UE.

Step 22. Determine whether the remaining data volume of the UE is not less than one MAC-d PDU; if the judgment result is that the remaining data volume of the UE is not less than one MAC-d PDU, it means that the UE still has data to send, and perform step 23; otherwise, explain If the UE has no data to send, go to step 27.

Step 23, judging whether the first amount of data carried by the E-PUCH is less than the amount of authorized data corresponding to the first authorized power;

Wherein, the first data volume refers to the data volume carried by the E-PUCH received by the NodeB this time, that is, the data volume corresponding to the MAC-d PDU carried in the MAC-e PDU. If the judgment result is that the first data volume is less than the authorized data volume, it means that the power required by the maximum code rate on the UE side is less than the first authorized power of the NodeB, and go to step 24; otherwise, if the judgment result is that the first data volume is equal to the authorized data volume , indicating that the power required by the maximum code rate at the UE side is equal to the first authorized power of the NodeB, then step 25 is performed.

Step 24. Obtain the second authorized power corresponding to the first amount of data, and obtain the third authorized power according to the first authorized power and the second authorized power, and perform step 26;

When the NodeB learns that the power required for the maximum code rate on the UE side is less than the power authorized by the NodeB to the UE corresponding to the E-PUCH received this time, it obtains the maximum code rate on the UE side according to the amount of data carried by the E-PUCH received this time. Then obtain the first authorized power threshold corresponding to the third authorized power according to formula (1), and select the third authorized power within the first authorized power threshold. Specifically, the NodeB can select the authorized power according to the remaining power of the UE, the amount of remaining data, and the interference with neighboring cells as in the prior art, and then compare the selected authorized power with the first authorized power threshold, and if it is not greater than the first If the authorized power threshold is used, it is determined that the selected authorized power is the third authorized power; otherwise, the first authorized threshold is used as the third authorized power.

Step 25. Increase the second authorized power threshold by a preset power step value, and obtain the first authorized power threshold according to the second authorized power threshold and the preset initial value of the authorized power threshold, and perform step 26; specifically, the NodeB learns When the power required for the maximum code rate on the UE side is equal to the power authorized to the UE last time (that is, the first authorized power), the second authorized power threshold corresponding to the first authorized power is increased by the preset power step value to increase the second authorized power threshold. authorized power threshold; then, compare the adjusted second authorized power threshold with the initial value of the preset authorized power threshold; when the adjusted second authorized power threshold is less than the preset authorized power threshold initial value, the adjusted first The second authorized power threshold is used as the first authorized power threshold; when the adjusted second authorized power threshold is greater than or equal to the preset authorized power threshold initial value, the preset authorized power threshold initial value is used as the first authorized power threshold. The NodeB selects the third authorized power based on the current first authorized power threshold.

Wherein, the NodeB can pre-set the initial value of the authorized power threshold according to the agreement. Since the agreement stipulates that five bits are used to represent the authorized power, the range of authorized power can only be -12 to 19. Therefore, in order to adapt to the agreement, the initial value of the authorized power threshold is set at 19.0dB for initialization. The upper limit of authorized power.

Among them, it can be seen from the formula (1) that the NodeB will only lower the authorized power threshold when the power required by the maximum code rate on the UE side is less than the authorized power, so that the selected third authorized power is as close as possible to the maximum code rate on the UE side. In order to prevent the authorized power threshold from being lowered all the time, the NodeB in this embodiment pre-sets the power step value, and when the power required by the maximum code rate on the UE side is equal to the first authorized power, the power step value is passed Appropriately adjust the authorized power threshold to ensure that the authorized power threshold remains within an appropriate range. Wherein, the power step value may be set according to an actual network state, for example, it may be set to 0.1 dB, but it is not limited thereto.

Step 26. When performing the power authorization operation, authorize the third authorized power to the UE, and use the first authorized power threshold as the second authorized power threshold again, and perform step 27.

Specifically, after the NodeB obtains the third authorized power authorized to the UE, it can use the E-DCH Absolute Grant Channel (E-DCH Absolute Grant Channel; E-AGCH for short) to transfer the obtained third authorized power to the execution power When the authorization operation is issued to the UE, the E-AGCH will carry the power authorization information (PRRI), including the authorization power.

Step 27, the operation ends.

In the authorized power acquisition method of this embodiment, the NodeB learns that the UE still has data to send according to the E-PUCH of the UE, and estimates the maximum code rate of the UE side according to the amount of data carried by the E-PUCH under the condition that the UE has data to send. The required power, according to the power required by the maximum code rate on the UE side and the authorized power corresponding to the E-PUCH received this time, obtain the subsequent power that should be authorized to the UE, and obtain the third authorized power during the subsequent power authorization issued to the UE, so that the UE sends subsequent data according to the third authorized power. Compared with the prior art, the NodeB in this embodiment obtains the power required by the maximum code rate on the UE side according to the amount of data received from the UE, and determines the power authorized to the UE in combination with the power required by the maximum code rate on the UE side. Therefore, the accuracy of the power authorized to the UE is improved, and the problem of power control divergence caused by the inability of the NodeB to know the code rate limit information of the UE in the prior art is overcome. Furthermore, because the NodeB improves the accuracy of the authorized power, the UE can use the appropriate power to send data, avoiding the waste of power caused by using a large transmission power, reducing the interference to the local cell or neighboring cells, and reducing the interference to the local cell and neighboring cells. The RoT of the cell.

FIG. 3 is a flowchart of an implementation method of step 24 in FIG. 2 provided by Embodiment 3 of the present invention. This embodiment is implemented based on Embodiment 2. As shown in FIG. 3 , the implementation of step 24 provided by this embodiment includes:

Step 241. Obtain a second authorized power corresponding to the first amount of data;

Specifically, for this step, reference may be made to the detailed description of the above step 13, which will not be repeated here.

Step 242: Obtain the first authorized power threshold according to the first authorized power and the second authorized power;

Specifically, the first authorized power threshold value is obtained according to formula (1). For a detailed description, refer to step 14 above, which will not be repeated here. Step 243, judging whether the first authorized power threshold is greater than the lower limit of the preset authorized power threshold;

Wherein, the preset authorized power threshold lower limit value is a lower limit value preset in order to prevent the authorized power threshold from becoming too small according to the formula (1) for multiple adjustments of the authorized power threshold, and the authorized power threshold lower limit value can be Set according to the protocol, for example, set the normalized gain factor β0e corresponding to 16QAM, 0.8 code rate in the code rate table, but not limited to this; in addition, if there is no such 16QAM, 0.8 code rate in the code rate table, you need It is calculated by interpolation, and then the lower limit of the authorized power threshold is set as the normalized gain factor β0e corresponding to the code rate.

Wherein, when the judgment result is no, execute step 244; otherwise, execute step 245.

Step 244. Set the lower limit value of the preset authorized power threshold as the first authorized power threshold, and execute step 245;

Specifically, the operation of step 244 can ensure that the first authorized power threshold is not too small, and ensure that the first authorized power threshold is within an appropriate range.

Step 245 , within the first authorized power threshold, select a third authorized power, and proceed to step 26 .

Specifically, the NodeB can select the authorized power according to the remaining power of the UE, the amount of remaining data, and the interference with neighboring cells as in the prior art, and then compare the selected authorized power with the first authorized power threshold, and if it is not greater than the first If the authorized power threshold is used, it is determined that the selected authorized power is the third authorized power; otherwise, the first authorized threshold is used as the third authorized power.

In the authorized power acquisition method of this embodiment, after obtaining the first authorized power threshold, by judging whether the first authorized power threshold is greater than the preset authorized power threshold lower limit, it can ensure that the power authorized to the UE is not too small, so that the UE The data can be sent correctly.

FIG. 4 is a schematic structural diagram of an apparatus for obtaining authorized power according to Embodiment 4 of the present invention. As shown in FIG. 4 , the device of this embodiment includes: a first acquiring module 41 , a first judging module 42 , a second acquiring module 43 and a third acquiring module 44 .

Among them, the first obtaining module 41 is used to obtain the remaining data volume of the UE according to the received E-PUCH; the first judging module 42 is connected to the first obtaining module 41, and is used to determine when the remaining data volume of the UE is greater than one MAC- d PDU, judge whether the first amount of data carried by the E-PUCH is less than the amount of authorized data corresponding to the first authorized power; When the judgment result is that the first data amount is less than the authorized data amount, obtain the second authorized power corresponding to the first data amount; the third obtaining module 44 is connected with the second obtaining module 43 for Power to obtain the third authorized power.

The above-mentioned functional modules can be used to execute the detailed procedures of the above-mentioned method embodiments, and their specific working principles can be found in the description of the method embodiments, and will not be repeated here.

The authorized power acquisition device in this embodiment judges whether the UE still has data to send according to the received E-PUCH of the UE. The power required for the maximum code rate, according to the power required for the maximum code rate on the UE side and the authorized power corresponding to the E-PUCH received this time, determines the third authorized power (that is, the new authorized power), which increases the power authorized to the UE accuracy, which overcomes the power control divergence problem caused by the inability to know the code rate limit information on the UE side in the prior art. In addition, the authorized power acquired by the authorized power acquisition device in this embodiment is closer to the power required by the maximum code rate on the UE side, which can improve the accuracy of the power authorized to the UE, so that the UE can use the appropriate power to send data, avoiding The power waste caused by the use of higher transmit power reduces the interference to the local cell or neighboring cells, and reduces the RoT to the local cell and neighboring cells.

Further, the first obtaining module 41 of this embodiment includes: a judging unit 411 , a first obtaining unit 412 and a second obtaining unit 413 . The judging unit 411 is used to judge whether the received E-PUCH contains SI; the first obtaining unit 412 is connected to the judging unit 411, and is used to determine whether the E-PUCH contains SI when the judging result of the judging unit 411 is based on the SI in the SI. TEBS-index obtains the remaining data volume of the UE; the second obtaining unit 413 is connected to the judging unit 411, and is used to obtain the TEBS in the last received SI when the judging result of the judging unit 411 is that the E-PUCH does not contain SI. -index and the second data volume of the UE received from the last received SI to the current moment, and obtain the remaining data volume of the UE.

The above-mentioned functional units can be used to execute the specific process of obtaining the remaining data volume of the UE in the above-mentioned method embodiment, and its working principle can be found in the description of the method embodiment in detail, and will not be repeated here.

Further, the third acquiring module 44 of this embodiment includes: a third acquiring unit 441 and a fourth acquiring unit 442 . The third obtaining unit 441 is connected with the second obtaining module 43, and is used to obtain the first authorized power threshold according to formula (1); the fourth obtaining unit 442 is connected with the first obtaining unit 441, and is used for obtaining the first authorized power threshold at the first authorized power threshold. within, obtain the third authorized power. Wherein, for the detailed introduction of the formula (1), reference may be made to the description of the foregoing method embodiments, and details are not repeated here.

The above-mentioned functional units can be used to execute the detailed process of obtaining the third authorized power in the above-mentioned method embodiment. For the working principle, refer to the description of the method embodiment for details, and will not be repeated here. In this embodiment, through the third acquisition unit and the fourth acquisition unit, the authorized power threshold is first obtained according to the power required for the maximum code rate on the UE side, and then the authorized power is obtained within the authorized power threshold, which can ensure that the authorized power is not greater than the maximum code rate on the UE side. rate required power, improving the accuracy of authorized power.

FIG. 5 is a schematic structural diagram of an apparatus for obtaining authorized power according to Embodiment 5 of the present invention. This embodiment can be implemented based on the fourth embodiment. As shown in FIG. 5 , the device of this embodiment further includes: an adding module 45 and a fourth obtaining module 46 .

Wherein, the increasing module 45 is connected with the first judging module 42, and is used to increase the second authorized power threshold by a preset power step value when the judging result of the first judging module 42 is that the first data volume is equal to the authorized data volume; The fourth obtaining module 46 is connected with the adding module 45, and is configured to obtain the first authorized power threshold according to the second authorized power threshold value and the preset authorized power threshold initial value.

Wherein, the adding module 45 includes: a comparison unit 451 , a fifth acquisition unit 452 and a sixth acquisition unit 453 . The comparison unit 451 is connected to the first judging module 42, and is used to compare the second authorized power threshold with the preset power threshold initial value when the judging result of the first judging module 42 is that the first data volume is equal to the authorized data volume; The fifth obtaining unit 452 is connected to the comparing unit 451, and is used to use the second authorized power threshold as the first authorized power threshold when the comparing unit 451 compares and obtains that the second authorized power threshold is smaller than the preset authorized power threshold initial value; Sixth, the acquisition unit 453 is connected to the comparison unit 451, and is used to use the preset authorized power threshold initial value as the first authorized power threshold when the comparison unit 451 compares and obtains that the second authorized power threshold is greater than or equal to the preset authorized power threshold initial value threshold.

The above-mentioned functional modules or units can be used to execute the detailed process of obtaining the first authorized power threshold when the power required for the maximum code rate on the UE side is equal to the authorized power in the above-mentioned method embodiments. description of.

Further, the apparatus for obtaining authorized power in this embodiment further includes: a sending module 47, connected to the fourth obtaining unit 442, configured to grant the third authorized power to the UE when performing the power authorization operation, and transfer the first authorized power The threshold is reused as the second authorized power threshold.

The apparatus for obtaining authorized power in this embodiment may authorize the obtained third authorized power to the UE through the sending module, so that the UE sends subsequent data according to the authorized power.

Furthermore, the authorized power acquisition device of this embodiment further includes: a second judging module 48 and a setting module 49 . Wherein, the second judging module 48 is used to judge whether the first authorized power threshold is greater than the preset authorized power threshold lower limit value after the third obtaining unit 441 obtains the first authorized power threshold; if the judgment result of the second judging module 48 is If it is greater than, trigger the fourth acquiring unit 442 to execute the operation of acquiring the third authorized power; otherwise, trigger the setting module 49 . The setting module 49 is used to set the lower limit value of the preset authorized power threshold as the first authorized power threshold when the judgment result of the second judging module 48 is No, and provide the first authorized power threshold to the fourth Acquiring unit 442 .

The above-mentioned functional modules can be used to execute the detailed process of how to obtain the third authorized power in the above-mentioned method embodiment. For the working principle, refer to the description of the method embodiment for details, and will not be repeated here.

The authorized power acquisition device of this embodiment can ensure that the authorized power is not too small through the above judgment module and setting module, so as to ensure that the UE side can correctly send data according to the authorized power.

In summary, the authorized power acquisition device of this embodiment judges whether the UE still has data to send according to the received E-PUCH of the UE, and when it is judged that the UE still has data to send, according to the data carried by the E-PUCH Quantitatively determine the power required for the maximum code rate on the UE side, and determine the third authorized power (that is, the new authorized power) according to the power required for the maximum code rate on the UE side and the first authorized power, which improves the accuracy of the power authorized to the UE It overcomes the power control divergence problem caused by the inability to know the code rate limit information on the UE side in the prior art. In addition, the third authorized power obtained by the authorized power obtaining device in this embodiment is closer to the power required by the maximum code rate on the UE side, which can improve the accuracy of the power authorized to the UE, so that the UE can use appropriate power to send data. It avoids the power waste caused by adopting a large transmit power, reduces the interference to the local cell or the neighboring cell, and reduces the RoT to the local cell and the neighboring cell.

Embodiment 6 of the present invention provides a base station, where the base station includes the apparatus for obtaining authorized power provided in the foregoing embodiment. For the working principle and structure of the device for obtaining authorized power, reference may be made to the descriptions of the foregoing embodiments, which will not be repeated here.

The base station of this embodiment, including the device for obtaining authorized power provided in the above embodiment, can be used to execute the procedure of the method for obtaining authorized power provided in the above method embodiment, and can be determined according to the power required by the maximum code rate on the UE side and the first authorized power. Determining the third authorized power improves the accuracy of the power authorized to the UE, overcomes the problem of power control divergence caused by the inability to obtain the code rate limit information on the UE side in the prior art, and at the same time allows the UE to send data at an appropriate power, reducing Interference to the local cell or neighboring cells is reduced, and the RoT to the local cell and neighboring cells is reduced.

Those of ordinary skill in the art can understand that all or part of the steps for realizing the above-mentioned method embodiments can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, the It includes the steps of the above method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (13)

1. A method for obtaining authorized power, comprising: Acquiring the remaining data volume of the user equipment by enhancing the physical uplink channel of the dedicated channel according to the received scheduling; When the remaining data volume of the user equipment is greater than one MAC-d protocol data unit, determine whether the first data volume carried by the enhanced scheduling dedicated channel physical uplink channel is less than the authorized data volume corresponding to the first authorized power; When the judgment result is that the first data volume is less than the authorized data volume, acquiring a second authorized power corresponding to the first data volume; Acquiring a third authorized power according to the first authorized power and the second authorized power; The obtaining the third authorized power according to the first authorized power and the second authorized power includes: According to the formula MaxLemdGrant'=(1-P)*MaxLemdGrant+P*L, the first authorized power threshold is obtained, and the first authorized power threshold is the power upper limit value corresponding to the third authorized power; Obtain the third authorized power within the first authorized power threshold; Wherein, Max LemdGrant' represents the first authorized power threshold; MaxLemdGrant represents a second authorized power threshold, where the second authorized power threshold is a power upper limit value corresponding to the first authorized power; L represents the second authorized power; P represents the forgetting factor, and 0=<P<=1. 2. The authorized power acquisition method according to claim 1, wherein said obtaining the remaining data volume of the user equipment according to the received scheduled enhanced dedicated channel physical uplink channel comprises: judging whether the received physical uplink channel of the enhanced scheduling dedicated channel contains scheduling information; If the judgment result is that the physical uplink channel of the enhanced scheduling dedicated channel includes the scheduling information, obtain the remaining data amount of the user equipment according to the cache status index value of the enhanced dedicated channel for transmission in the scheduling information; If the judgment result is that the physical uplink channel of the enhanced scheduling dedicated channel does not contain the scheduling information, according to the buffer status index value of the transmission enhanced dedicated channel in the last received scheduling information and the index value received from the last received scheduling information to the current time The second data volume of the user equipment is to obtain the remaining data volume of the user equipment. 3. The authorized power acquisition method according to claim 1 or 2, further comprising: When the judgment result is that the first data amount is equal to the authorized data amount, increase the second authorized power threshold by a preset power step value, and The initial value of the threshold is to obtain the first authorized power threshold. 4. The authorized power acquisition method according to claim 3, wherein said obtaining the first authorized power threshold according to the second authorized power threshold and the preset authorized power threshold initial value comprises: comparing the second authorized power threshold with an initial value of a preset authorized power threshold; When the second authorized power threshold is smaller than the preset authorized power threshold initial value, use the second authorized power threshold as the first authorized power threshold; When the second authorized power threshold is greater than or equal to the preset authorized power threshold initial value, the preset authorized power threshold initial value is used as the first authorized power threshold. 5. The method for obtaining authorized power according to claim 1, further comprising: after obtaining the third authorized power: When performing a power authorization operation, authorize the third authorized power to the user equipment, and use the first authorized power threshold as the second authorized power threshold again. 6. The authorized power acquisition method according to claim 5, further comprising: after acquiring the first authorized power threshold: judging whether the first authorized power threshold is greater than a preset authorized power threshold lower limit; If the judgment result is no, set the lower limit value of the preset authorized power threshold as the first authorized power threshold. 7. An authorized power acquisition device, comprising: The first acquisition module is configured to acquire the remaining data volume of the user equipment according to the received scheduled enhanced dedicated channel physical uplink channel; A first judging module, configured to judge whether the first data amount carried by the enhanced scheduling dedicated channel physical uplink channel is less than the first authorized power corresponding authorized data volume; A second acquiring module, configured to acquire a second authorized power corresponding to the first data amount when the judgment result of the first judging module is that the first data amount is smaller than the authorized data amount; A third obtaining module, configured to obtain a third authorized power according to the first authorized power and the second authorized power; The third acquisition module includes a third acquisition unit and a fourth acquisition unit; A third obtaining unit, configured to obtain a first authorized power threshold according to the formula MaxLemdGrant'=(1-P)*MaxLemdGrant+P*L, where the first authorized power threshold is the power upper limit corresponding to the third authorized power value; a fourth obtaining unit, configured to obtain the third authorized power within the first authorized power threshold; Wherein, Max LemdGrant' represents the first authorized power threshold; MaxLemdGrant represents a second authorized power threshold, where the second authorized power threshold is a power upper limit value corresponding to the first authorized power; L represents the second authorized power; P represents the forgetting factor, and 0=<P<=1. 8. The authorized power acquisition device according to claim 7, wherein the first acquisition module comprises: A judging unit, configured to judge whether the received physical uplink channel of the enhanced scheduling dedicated channel contains scheduling information; The first obtaining unit is configured to obtain the transmission enhanced dedicated channel buffer state index value in the scheduling information when the judging result of the judging unit is that the physical uplink channel of the enhanced scheduling dedicated channel contains the scheduling information. The remaining data volume of the user equipment; The second acquiring unit is configured to, when the judging result of the judging unit is that the physical uplink channel of the enhanced scheduling dedicated channel does not contain the scheduling information, according to the transmission enhanced dedicated channel buffer state index value in the last received scheduling information and the second data volume of the user equipment received from the last receiving of the scheduling information to the current moment, to obtain the remaining data volume of the user equipment. 9. The authorized power acquisition device according to claim 7 or 8, further comprising: An increasing module, configured to increase the second authorized power threshold by a preset power step value when the judgment result of the first judging module is that the first data volume is equal to the authorized data volume; The fourth obtaining module is configured to obtain the first authorized power threshold according to the second authorized power threshold value and a preset authorized power threshold initial value. 10. The authorized power acquisition device according to claim 9, wherein the fourth acquisition module comprises: a comparing unit, configured to compare the second authorized power threshold with an initial value of a preset authorized power threshold; A fifth obtaining unit, configured to use the second authorized power threshold as the first authorized power threshold when the second authorized power threshold is smaller than the preset authorized power threshold initial value; A sixth obtaining unit, configured to use the preset authorized power threshold initial value as the first authorized power threshold when the second authorized power threshold is greater than or equal to the preset authorized power threshold initial value. 11. The authorized power acquisition device according to claim 7, further comprising: A sending module, configured to authorize the third authorized power to the user equipment when performing a power authorization operation, and use the first authorized power threshold as the second authorized power threshold again. 12. The authorized power acquisition device according to claim 11, further comprising: A second judging module, configured to judge whether the first authorized power threshold is greater than a preset authorized power threshold lower limit; A setting module, configured to set a preset authorized power threshold lower limit value as the first authorized power threshold when the judgment result of the second judging module is negative. 13. A base station comprising the apparatus for obtaining authorized power according to any one of claims 7-12.

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