CN113596902A

CN113596902A - Base station side PHR optimization method, storage medium, electronic device and base station

Info

Publication number: CN113596902A
Application number: CN202110872845.XA
Authority: CN
Inventors: 周璐璐; 杨今明
Original assignee: Xi'an Baopu Communication Technology Co ltd; Raisecom Technology Co Ltd
Current assignee: Xi'an Baopu Communication Technology Co ltd; Raisecom Technology Co Ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2021-11-02

Abstract

The embodiment of the application discloses a PHR optimization method, a storage medium, an electronic device and a base station at a base station side. The method comprises the following steps: recording a received power headroom report value PHR reported by User Equipment (UE) as a current PHR; restarting a monitoring period of a block error rate BLER when the current PHR is smaller than a preset first preset value and the receiving time of the current PHR is not in the monitoring period of the restarted block error rate BLER; when the current PHR is smaller than the first preset value and the receiving time of the current PHR is in the monitoring period of the restarted BLER, if the current BLER is larger than or equal to the block error rate threshold value, the resource block RB of the UE is redistributed; and determining the monitoring period of the restarted BLER according to whether the time length of the monitoring period of the last BLER is a preset time length or not.

Description

Base station side PHR optimization method, storage medium, electronic device and base station

Technical Field

The present invention relates to the field of communications, and in particular, to a method for optimizing a Power Headroom Report (PHR), a storage medium, an electronic device, and a base station.

Background

In an LTE (long term evolution) network, a PH (Power Headroom) represents a difference between a maximum transmission (Allowed maxrranspower) Power Allowed by a UE (User Equipment) and a currently estimated PUSCH (Physical Uplink Shared Channel) transmission Power, and can be simply expressed by a formula as: UE AllowedMaxTransPower-PuschPower. It indicates how much transmission power the UE can use in addition to the transmission power used for the current PUSCH transmission. The unit of PH is dB, the range is [ -23dB, +40dB ], and if negative, it means that the base station has scheduled the UE with a data transmission rate higher than it can support at the available transmit power at that time.

The PHR is transmitted by a control unit of the UE MAC layer in the process of reporting the power headroom to the network side by the UE, so the MAC control unit related to this process is also referred to as a PHR control unit.

The 3GPP protocol defines 64 PH levels, each PH level value is used as a PHR, and corresponds to an actual measurement quality value dB, as shown in table 1, a mapping relationship between the PHR and the PH is shown, for example, if the PH value that the UE needs to report is-22 dB, then it is only necessary to fill a value 1 in the PHR control unit of the MAC PDU.

Reporting value (Reported value)	Measuring quality value (Measured quality value) (dB)
		POWER_HEADROOM_0	-23≤PH＜-22
POWER_HEADROOM_1	-22≤PH＜-21
		POWER_HEADROOM_2	-21≤PH＜-20
POWER_HEADROOM_3	-20≤PH＜-19
		POWER_HEADROOM_4	-19≤PH＜-18
POWER_HEADROOM_5	-18≤PH＜-17
		…	…
POWER_HEADROOM_22	-1≤PH＜0
		…	…
POWER_HEADROOM_58	35≤PH＜36
		POWER_HEADROOM_59	36≤PH＜37
POWER_HEADROOM_60	37≤PH＜38
		POWER_HEADROOM_61	38≤PH＜39
POWER_HEADROOM_62	39≤PH＜40
		POWER_HEADROOM_63	PH≥40

TABLE 1

The PH is defined because it can serve as a reference for the base station to allocate an uplink RB (Resource Block). In the prior art, if the PH value reported by the UE is negative, it indicates that the current PUSCH transmission power has exceeded the maximum transmission power allowed by the UE, and the RB allocated to the UE is usually directly reduced in the next scheduling, and typically, the base station raises the PH by reducing the allocated RB; if the PH value is positive, the RBs subsequently allocated to the UE may also continue to increase, and the specific RB scheduling manners are determined by different manufacturers, which is not described herein. However, when the PH value is negative, if RB allocation to the UE is reduced, uplink rate reduction of the UE is inevitably caused, and although the reduction of the uplink rate can basically meet user service requirements in a scenario where the requirement of the user for uplink traffic is not high (for example, a normal operator scenario), user perception is not obvious, the requirement of the user cannot be met in a scenario where the uplink traffic needs to be stably maintained in a higher range (for example, a private network environment where uplink video service needs to be returned).

Disclosure of Invention

In order to solve any one of the above technical problems, an embodiment of the present application provides a base station side PHR optimization method, a storage medium, an electronic apparatus, and a base station.

In order to achieve the purpose of the embodiment of the present application, an embodiment of the present application provides a base station side PHR optimization method, including:

recording a received power headroom report value PHR reported by User Equipment (UE) as a current PHR;

restarting a monitoring period of a block error rate BLER when the current PHR is smaller than a preset first preset value and the receiving time of the current PHR is not in the monitoring period of the restarted block error rate BLER;

when the current PHR is smaller than the first preset value and the receiving time of the current PHR is in the monitoring period of the restarted BLER, if the current BLER is larger than or equal to the block error rate threshold value, the resource block RB of the UE is redistributed;

and determining the monitoring period of the restarted BLER according to whether the time length of the monitoring period of the last BLER is a preset time length or not.

A storage medium having a computer program stored therein, wherein the computer program is arranged to perform the method as described above when executed.

An electronic device comprising a memory having a computer program stored therein and a processor arranged to execute the computer program to perform the method as described above.

A base station, characterized in that it comprises an electronic device as claimed in the preceding claims.

One of the above technical solutions has the following advantages or beneficial effects:

when the reported value of the current PHR is smaller than the first preset value and the receiving time of the current PHR is not in the monitoring period of the restarted BLER, restarting the monitoring period of the BLER, and when the reported value of the current PHR is smaller than the first preset value and the receiving time of the current PHR is in the monitoring period of the restarted BLER, if the current BLER is larger than or equal to the threshold value of the block error rate, reallocating the RB of the UE, avoiding the time difference between the received PHR and the monitoring period of the BLER, and enabling the response speed to be adjusted more accurately.

Additional features and advantages of the embodiments of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the embodiments of the application. The objectives and other advantages of the embodiments of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

The accompanying drawings are included to provide a further understanding of the embodiments of the present application and are incorporated in and constitute a part of this specification, illustrate embodiments of the present application and together with the examples of the embodiments of the present application do not constitute a limitation of the embodiments of the present application.

Fig. 1 is a flowchart of a base station side PHR optimization method according to an embodiment of the present application;

fig. 2 is a flowchart of a base station side PHR optimization method according to an embodiment of the present application;

fig. 3 is a flowchart of a base station side PHR optimization method according to a second embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application more apparent, the embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that, in the embodiments of the present application, features in the embodiments and the examples may be arbitrarily combined with each other without conflict.

Fig. 1 is a flowchart of a base station side PHR optimization method according to an embodiment of the present disclosure. As shown in fig. 1, the method includes:

step 101, recording a received PHR reported by UE as a current PHR;

step 102, if the current PHR is smaller than a preset first preset value, determining whether the receiving time of the current PHR is in a monitoring period of a restarted block error rate BLER; the monitoring period of the restarted BLER is determined according to whether the time length of the monitoring period of the last BLER is a preset time length or not;

presetting the standard time length of a monitoring period of BLER as T, and if the monitoring period of the current BLER is the ith monitoring period, acquiring the actual time length T of the ith-1 th monitoring period; if the actual time length T is less than the standard time length T, the ith monitoring period is a restarted BLER monitoring period if the ith-1 monitoring period is ended under the condition that the actual time length T is not reached; if the actual time length T is equal to the standard time length T, which indicates that the i-1 th monitoring period is normally ended, the i-th monitoring period is not the restarted BLER monitoring period.

Step 103, if the BLER monitoring period is not restarted, restarting the BLER monitoring period, and continuing to execute step 101;

step 104, if in the monitoring period of the restarted BLER, when the current BLER is greater than or equal to the threshold value of the block error rate, the resource block RB of the UE is redistributed, and then step 101 is continuously executed;

and when the current PHR is smaller than the first preset value and the receiving time of the current PHR is in the monitoring period of the restarted BLER, if the current BLER is smaller than the block error rate threshold value, the RB of the UE is not reallocated, and step 101 is continuously performed.

In the process shown in fig. 1, the PHR update operation is performed in the restarted BLER monitoring period, so that the numerical accuracy of the locally recorded PHR of the UE can be ensured, and data support is provided for subsequently performing adjustment or not and determining the adjustment strategy to be used.

According to the method provided by the embodiment of the application, when the current PHR is smaller than the first preset value and the receiving time of the current PHR is not in the monitoring period of the restarted BLER, the monitoring period of the BLER is restarted, and when the reported value of the current PHR is smaller than the first preset value and the receiving time of the current PHR is in the monitoring period of the restarted BLER, if the current BLER is larger than or equal to the threshold value of the block error rate, the resource block RB of the UE is redistributed, so that the time difference between the received PHR and the monitoring period of the BLER is avoided, and the response speed is adjusted more accurately.

The method provided by the embodiments of the present application is explained as follows:

in an exemplary embodiment, the re-allocating resource blocks RB of the UE includes:

determining a limited state of a current PHR to obtain a current limited state, wherein the current limited state comprises a PHR entering a quasi-limited state and a PHR entering an initial limited state;

determining an adjustment strategy corresponding to the current limited state; the method comprises the steps that a PHR enters a quasi-limited state, a corresponding adjustment strategy is a high-order adjustment strategy, a corresponding adjustment strategy when the PHR enters an initial limited state is a low-order adjustment strategy, and the adjustment speed of the high-order adjustment strategy is higher than that of the low-order adjustment strategy;

and reallocating the RB of the UE according to the adjustment strategy.

The limited severity of the current PHR of the UE is determined, so that a proper adjustment strategy is determined according to the limited severity, wherein the more severe the limited state of the PHR is, the faster the adjustment speed of the corresponding adjustment strategy is, and the required stable uplink flow is provided for the user as soon as possible.

In an exemplary embodiment, determining the limited state of the current PHR, and obtaining the current limited state includes:

judging whether the current PHR is smaller than a preset second preset value, wherein the second preset value is smaller than the first preset value;

and if the current PHR is smaller than the second preset value, determining that the current limited state is that the PHR enters a quasi-limited state, and otherwise, determining that the current limited state is that the PHR enters an initial limited state.

By setting the second preset value, which is smaller than the first preset value, the comparison result can be divided into three cases, namely, the comparison result is smaller than the second preset value, and the comparison result is larger than the second preset value, the comparison result is larger than the first preset value, and the comparison result is larger than the first preset value. The first 2 cases correspond to the PHR entering the quasi-restricted state and the PHR entering the initial restricted state respectively; wherein the last case does not make an adjustment of the RB.

In an exemplary embodiment, the determining the limited state of the current PHR, and obtaining the current limited state includes:

acquiring a current SIGNAL-to-NOISE RATIO (SNR) of an uplink channel;

judging whether the current signal-to-noise ratio is larger than a preset signal-to-noise ratio threshold value or not;

and if the current signal-to-noise ratio is smaller than the signal-to-noise ratio threshold value, determining that the current limited state is a PHR entering a quasi-limited state.

By judging the current uplink SNR, when the current SNR is smaller than the current SNR threshold value, the current limited state is directly determined to be a PHR entering a quasi-limited state, the called adjustment strategy is rapidly determined to be a high-order adjustment strategy, and rapid adjustment is entered, so that an uplink line obtains faster adjustment response when the PHR is low and the SNR is low.

In one exemplary embodiment, the method further comprises:

if the current SNR is larger than or equal to the SNR threshold value, judging whether the current PHR is smaller than a preset second preset value, wherein the second preset value is smaller than the first preset value;

When the current SNR is greater than or equal to the SNR threshold, by setting a second preset value, which is smaller than the first preset value, and with the help of the second preset value, the comparison result can be divided into three cases, which are respectively smaller than the second preset value, larger than the second preset value, smaller than the first preset value, and larger than the first preset value. The first 2 cases correspond to the PHR entering the quasi-restricted state and the PHR entering the initial restricted state respectively; wherein the last case does not make an adjustment of the RB.

In an exemplary embodiment, the second preset value is determined according to a zero PH percentage allowed by the UE.

In an exemplary embodiment, the second preset value is 18.

In one exemplary embodiment, the first preset value is 22.

By adopting the above method to set the threshold value, the limited state of the PHR can be accurately determined, and a basis is provided for selecting a proper adjustment strategy.

In one exemplary embodiment, the method further comprises:

when the current PHR is larger than or equal to the first preset value, updating the current adjustment times i of all adjustment strategies to initial values;

after the RB of the UE is redistributed, the numerical value of the current adjusting times i corresponding to the adjusting strategy currently used by the UE is recorded and added with 1, the numerical value of the current adjusting times i of the unused adjusting strategy is set as an initial value, and the step A1 is continuously executed.

By setting the adjustment times for each adjustment strategy, statistics of the number of times of use of different adjustment strategies in the adjustment process of the RB of the UE can be achieved.

In an exemplary embodiment, the reallocating the RBs of the UE according to the adjustment policy includes:

determining the adjustment proportion of the corresponding RB for the adjustment times i corresponding to the currently used adjustment strategy;

determining the total number of RBs required to be reduced by the UE according to the adjustment proportion and the total number of the RBs currently requested by the UE;

when the adjustment times i are the same, the adjustment proportion corresponding to the high-order adjustment strategy is larger than that in the low-order adjustment strategy.

By determining the adjustment proportion corresponding to the current adjustment times i, the RB can be gradually adjusted, so that smooth execution of adjustment operation is realized.

In an exemplary embodiment, the adjusted ratio of RB is obtained by:

(i-1)*step+A；

wherein i is the current adjustment times, step is the adjustment step length, and A is the initial adjustment proportion value.

The values of the adjustment step length and the initial adjustment ratio can be defined as required.

The determination of the adjustment proportion of each adjustment operation is completed based on the calculation expression, and the implementation mode is simple and convenient.

In order to solve the above problem, an embodiment of the present application provides a method for PHR optimization, where when an obtained PHR value is lower than a first preset value and a current block error rate is greater than or equal to a preset block error rate threshold value, an adjustment mode of an RB is determined according to a recorded current PHR, and the RB is allocated, otherwise, the RB is not allocated and adjusted, so as to ensure a stable uplink traffic required by a user.

The first embodiment is as follows:

referring to fig. 2, a PHR optimization method proposed in this embodiment is applied to a base station, where the base station starts a BLER (block error rate) monitoring period according to a preset policy, and records a BLER obtained in the monitoring period as a current BLER when one monitoring period is ended, where the preset policy may be a starting policy in the prior art, for example, when a certain UE is determined to be accessed, the base station starts a first BLER monitoring period for the UE, and an initial value of the current BLER at this time is set to 0. And performing the following steps:

step 1000: acquiring a PHR reported by UE, and recording the acquired PHR as a current PHR;

in this step, the MAC layer of the base station demodulates and obtains a Reported value (Reported value) from the PHR control unit Reported by the UE, where the obtained Reported value may reflect the current power headroom of the UE;

step 1001: judging whether the current PHR is smaller than a first preset value or not, if so, executing a step 1002, and if not, executing a step 1009;

in this step, the first preset value may be preferably: 22; according to the mapping relationship between the PH and the PHR, when the PHR value is 22, the power headroom PH value corresponding to the UE is: -1 dB; indicating that the current PUSCH transmission power has exceeded the maximum transmission power allowed by the UE, (it is stated herein that PUSCH is a calculated value, not the actual transmission power of the UE, and thus PH may be a negative value) may need to be reduced to the RB allocated for the UE;

step 1002: restarting a new BLER monitoring period;

restarting a new BLER monitoring period in the step is to avoid time difference between the received PHR and BLER monitoring periods, so that the response speed is more accurately adjusted;

step 1003: judging whether a new PHR is received in the current BLER monitoring period, if so, executing a step 1004, otherwise, executing a step 1005;

step 1004: updating the recorded current PHR;

step 1005: judging whether the current BLER monitoring period is up, if so, executing step 1006, otherwise, returning to execute step 1003;

step 1006: judging whether the current BLER is smaller than a preset block error rate threshold value, if not, executing a step 1007, otherwise, executing a step 1009;

in this step, for the current BLER, the preset block error rate threshold is preferably 10%; in LTE, the target BLER of the data Channel is 10%, the UE reports a measured CQI (Channel Quality Indication) value to the base station, where the specification of LTE defines a CQI selection criterion, that is, a decoding error rate (BLER) of the PDSCH is less than 10% of a used CQI value, and the base station can determine, according to the CQI value reported by the UE, a Modulation and Coding Scheme (MCS) used for current scheduling, where the block error rate index of LTE is 10% under a HARQ (Hybrid Automatic Repeat Request) retransmission-free condition; of course, in other embodiments, for the current BLER, the block error rate threshold may also be set to other values according to an actual situation, for example, set to 8% in a situation where the required accuracy is higher, where no further limitation is made on other selection manners of the block error rate threshold of the current BLER value, and the selection may be performed by a person having ordinary skill in the art according to an actual scenario.

Step 1007: and determining the current RB adjustment mode according to the current PHR, redistributing the current RB adjustment mode, and simultaneously recording the current RB adjustment mode.

In this step, determining the current RB adjustment mode according to the current PHR and performing reallocation specifically includes:

setting a second preset value for representing that the PH value of the current UE has seriously affected the user experience, where the second preset value is smaller than the first preset value, and is determined according to the percentage of the zero power headroom set by the UE, and typically, if the current resource allocation already exceeds approximately 50% of the zero power headroom of the UE (10 × lg2 — 3dB) from the power perspective, the user experience will be seriously affected, the second preset value may be set as: 18;

if the current PHR is greater than or equal to the first preset value, it indicates that the current RB allocation meets the requirement, no allocation adjustment is performed on the RB, and the process goes to execute step 1009;

if the current PHR is smaller than a second preset value, the PHR is indicated to enter a quasi-limited state, and RB reallocation is carried out according to a PHR quasi-limited state adjusting mode, namely: the RB is quickly reduced by presetting a high-order initial adjustment threshold and step length; recording the current RB adjusting mode; then step 1008 is performed;

if the current PHR is greater than or equal to the second preset value and smaller than the first preset value, the PHR enters an initial limited state, and RB reallocation is performed according to a PHR quasi-limited state adjustment mode, namely: the RB is slowly reduced by the initial adjustment threshold and the step length of a preset low order; recording the current RB adjusting mode; step 1008 is then performed.

Wherein, the initial adjustment threshold and step size of the low order and the initial adjustment threshold and step size of the high order are the modes that can be realized by those skilled in the art in the prior art, and only for the UE whose PHR is in the quasi-limited state, the power margin enters the serious insufficient state, and the adjustment speed for the RB thereof needs to be faster, so as to avoid discomfort of user experience.

Typically, the initial adjustment threshold and the step size of the preset low order may be set as: the initial adjustment threshold is 10%, the adjustment step is 5%, and RB allocation is gradually reduced according to the adjustment strategy of (i-1) × step + the initial threshold. Wherein i is the current adjustment times; for example, when the current adjustment number i is 1, this RB adjustment is the first adjustment, and the RB to be reduced and allocated at this time is: the UE actually reports BSR allocation RB 10% currently, and when the current adjustment time i is 2, it indicates that this RB adjustment is the second adjustment, and the RB allocation is reduced at this time as follows: the UE currently actually reports BSR allocation RB 15% … ….

The initial adjustment threshold and step size of the high order may be set as: the initial adjustment threshold is 20%, the adjustment step is 10%, and RB allocation is rapidly reduced according to an adjustment strategy of (i-1) × step + the initial threshold; wherein, i is the current adjustment number, for example, when the current adjustment number i is equal to 1, it indicates that the RB adjustment is the first adjustment, and the RB to be reduced and allocated at this time is: the UE actually reports 20% of BSR allocated RB, when the current adjustment time i is 2, it indicates that this RB is adjusted to the second adjustment, and the RB allocated to this time is reduced as follows: UE currently actually reports BSR allocation RB 30% … …

Step 1008: updating the current adjustment times i of the current RB adjustment mode to i +1, and updating the current adjustment times i of other RB adjustment modes to 1; then returning to execute the step 1000;

in this step, if the updated RB adjustment mode adjustment number i is 2, it indicates that the first RB adjustment has been performed in the current adjustment mode; if the updated adjusting times i are more than 2, the RB continuous adjustment under the current adjusting mode is performed currently, namely the RB is adjusted, but the set requirement is still not met, and the adjusting mode is not changed in the current adjustment;

in the step, if the current adjustment mode is different from the last adjustment mode, the current adjustment frequency in the last adjustment mode is automatically initialized and reset to 1; thus, when adjustment is needed and adjustment mode switching is performed, independent adjustment counting of each mode is realized.

Step 1009: and updating the current adjustment times i of each RB adjustment mode to 1, and then returning to execute the step 1000.

The PHR optimization method proposed in this embodiment has the following significant advantages:

(1) when the base station judges that the current PHR is smaller than the first preset value but the current BLER is smaller than the block error rate threshold value, the base station still allocates the RB according to the resource actually required by the user and does not immediately adjust the RB, so that stable uplink flow is provided for the user, the service requirement of the user is met, and unnecessary RB adjustment is avoided under the condition that the PH is too low due to overhigh network access power of the UE;

(2) when the base station judges that the current PHR is smaller than a first preset value and the current BLER is larger than or equal to a block error rate threshold value, the base station determines the adjustment mode of the RB according to the current PHR, and adjusts the RB, so that the PH value can be quickly adjusted to meet the service requirement, and the situation that the PH is adjusted too fast when the PH value is not smaller than a second preset value which indicates that the user experience is seriously influenced and the user rate is reduced too fast can be avoided;

(3) and restarting the BLER monitoring period when the reported value of the current PHR is judged to be smaller than the first preset value, and directly determining the RB adjustment mode by using the current PHR determined in the current monitoring period when the adjustment is possibly needed, so that the time difference between the received PHR and the BLER monitoring period is avoided, and the adjustment response speed is more accurate.

Example two:

referring to fig. 3, in a second embodiment, based on the first embodiment, further optimization is performed, and another method for optimizing a PHR is provided, where the method is applied to a base station, the base station starts a BLER (block error rate) monitoring period according to a preset policy, and when a monitoring period is finished, records the BLER obtained in the monitoring period as a current BLER, where the preset policy may be a starting policy in the prior art, for example, when a certain UE is determined to be accessed, the base station starts a first BLER monitoring period for the UE, and an initial value of the current BLER at this time is set to 0. And performing the following steps:

step 2000: acquiring a PHR reported by UE, and recording the acquired PHR as a current PHR;

step 2001: judging whether the reported value of the current PHR is smaller than a first preset value, if so, executing step 2002, and if not, executing step 2010;

step 2002: restarting a new BLER monitoring period;

step 2003: judging whether a new PHR is received in the current BLER monitoring period, if so, executing a step 2004, otherwise, executing a step 2005;

step 2004: updating the recorded current PHR;

step 2005: judging whether the current BLER monitoring period is up, if so, executing step 2006, otherwise, returning to execute step 2003;

step 2006: judging whether the current BLER is smaller than a preset block error rate threshold value, if not, executing a step 2007, otherwise, executing a step 2010;

in this step, for the current BLER, the preset block error rate threshold is preferably 10%; in LTE, the target BLER of the data Channel is 10%, the UE reports a measured CQI (Channel Quality Indication) value to the base station, where the specification of LTE defines a selection criterion of the CQI, that is, a decoding error rate (BLER) of the PDSCH is less than 10% of a used CQI value, and the base station can determine, according to the CQI value reported by the UE, an MCS (Modulation and Coding Scheme) used for current scheduling, where the block error rate index of LTE is 10% under a HARQ (Hybrid Automatic Repeat reQuest) no retransmission condition; of course, in other embodiments, for the current BLER, the block error rate threshold may also be set to other values according to an actual situation, for example, set to 8% in a situation where the required accuracy is higher, where no further limitation is made on other selection manners of the block error rate threshold of the current BLER value, and the selection may be performed by a person having ordinary skill in the art according to an actual scenario.

Step 2007: judging whether the current uplink SNR (SIGNAL to NOISE RATIO) is smaller than the current SNR threshold value, if so, indicating that the RB needs to be adjusted urgently so as to avoid influencing the user perception, and thus directly executing the step 2008-1; if not, determining the current RB adjusting mode according to the current PHR;

in this step, the current uplink SNR can be obtained by a person of ordinary skill in the art according to the prior art, typically by physical layer measurement, which is not described herein again; the current SNR threshold is a value determined according to the MCS used in the current scheduling, and is not a unique determined value, and a mapping relationship between the PUSCH SNR and the MCS is usually stored on the base station side, as shown in table 2 below, which typically indicates that the physical layer corresponding to the MCS can correctly demodulate the SNR threshold; whereby the current SNR threshold value can be known from the current MCS;

MCS Index	Modulation OrderQ'_m	PUSCH SNR
			0	2	0
1	2	1
			2	2	2
3	2	3
			4	2	4
5	2	5
			6	2	6
7	2	7
			8	2	8
9	2	9
			10	2	10
11	4	10
			12	4	11
13	4	12
			14	4	13
15	4	14
			16	4	15
17	4	16
			18	4	17
19	4	18
			20	4	19
21	6	19
			22	6	20
23	6	21
			24	6	22
25	6	23
			26	6	24
27	6	25
			28	6	26

TABLE 2

Step 2008: and determining the current RB adjustment mode according to the current PHR, redistributing the current RB adjustment mode, and simultaneously recording the current RB adjustment mode.

if the current PHR is greater than or equal to the first preset value, the current RB allocation meets the requirement, the RB is not allocated and adjusted, and the step 2010 is executed;

if the current PHR is smaller than the second preset value, it indicates that the PHR enters the quasi-limited state, execute step 2008-1, and perform RB reallocation according to the PHR quasi-limited state adjustment mode, that is: the RB is quickly reduced by presetting a high-order initial adjustment threshold and step length; recording the current RB adjusting mode; then step 2009 is performed;

if the PHR enters the initial limited state, execute step 2008-2: RB reallocation is carried out according to a PHR quasi-limited state adjustment mode, namely: the RB is slowly reduced by the initial adjustment threshold and the step length of a preset low order; recording the current RB adjusting mode; step 2009 is then performed.

Step 2009: updating the current adjustment times i of the current RB adjustment mode to i +1, and updating the current adjustment times i of other RB adjustment modes to 1; then, the step 2000 is executed;

Step 2010: the current adjustment number i of each RB adjustment mode is updated to 1, and then the process returns to step 2000.

Compared with the first embodiment, in the second embodiment, when the RB needs to be adjusted according to the current PHR value and the BLER value, the judgment on the current uplink SNR is further introduced, so that when the current SNR is smaller than the current SNR threshold, the current SNR directly enters the fast adjustment, and whether the current PHR is larger than the second preset value is no longer judged, so that the uplink obtains a faster adjustment response when the PHR is low and the SNR is low.

An embodiment of the present application provides a storage medium, in which a computer program is stored, wherein the computer program is configured to perform the method described in any one of the above when the computer program runs.

An embodiment of the application provides an electronic device, comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to perform the method described in any one of the above.

An embodiment of the present application provides a base station, including the electronic apparatus described above. The electronic device may be provided in the base station as a separate module or integrated on a module having a processing function in the base station.

It will be understood by those of ordinary skill in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.

Claims

1. A PHR optimization method at a base station side is characterized by comprising the following steps:

2. The method of claim 1, wherein the re-allocating Resource Blocks (RBs) of the UE comprises

and reallocating the RB of the UE according to the adjustment strategy.

3. The method of claim 2, wherein the determining the limited state of the current PHR, resulting in a current limited state, comprises:

4. The method of claim 2, wherein the determining the limited state of the current PHR, resulting in a current limited state, comprises:

acquiring a current signal-to-noise ratio of an uplink channel;

5. The method of claim 4, further comprising:

if the current signal-to-noise ratio is larger than or equal to the signal-to-noise ratio threshold value, judging whether the current PHR is smaller than a preset second preset value, wherein the second preset value is smaller than the first preset value;

6. The method of claim 3 or 5, wherein the second predetermined value is determined according to a percentage of zero power headroom allowed by the UE.

7. The method of claim 6, wherein the second preset value is 18.

8. The method of claim 1, wherein the first preset value is 22.

9. The method of claim 2, further comprising:

10. The method of claim 9, wherein the reallocating the RBs of the UE according to the adjustment policy comprises:

11. The method of claim 10, wherein the adjusted ratio of RBs is obtained by:

(i-1)*step+A；

12. The method of claim 1, further comprising:

and when the current PHR is smaller than the first preset value and the receiving time of the current PHR is in the monitoring period of the restarted BLER, if the current BLER is smaller than the block error rate threshold value, not reallocating the RB of the UE.

13. A storage medium, in which a computer program is stored, wherein the computer program is arranged to perform the method of any of claims 1 to 12 when executed.

14. An electronic device comprising a memory and a processor, wherein the memory has stored therein a computer program, and wherein the processor is arranged to execute the computer program to perform the method of any of claims 1 to 12.

15. A base station, characterized in that it comprises an electronic device according to claim 14.