TW201210375A - Femtocell and controlling method thereof - Google Patents

Abstract

The present invention relates to a femtocell. The femtocell stores the data of registered users, the probability values of different time periods, and a comparison table of power saving rates and probability thresholds. The probability values are probabilities that the femtocell is accessed by a registered user in the corresponding time period. The power saving rate is proportion calculated as the proportion that the time periods whose probability value is less than or equal to a probability threshold occupy in the entire time periods. The femtocell includes a transmitter, a receiver, a setting module, a time module, a user identify module, a switching module, and a statistic module. The setting module is used for selecting probability threshold from the comparison table. The time module is used for getting the current time and searching the time period corresponding to the current time. The user identify module is used for judging whether user accessing to the femtocell is a registered user or not. The switching module is used for turning off the transmitter when the probability value of the current time is less than the selected probability threshold, or turning on the transmitter otherwisely. The statistic module is used for updating the probability value of the current time. The present invention also relates to a controlling method for the femtocell.

Description

201210375 VI. Description of the Invention: [Technical Leadership of the Invention] [0001] The present invention relates to a femtocell base station and a control method thereof. [Previously #支#ί] [0002] The existing femtocell base station will always be in a working state regardless of whether there are users around. There are no users around the femtocell base station. For example, when the office is off, there may be no users in the office building. When you go to work, there may be no users in the residential area. If the femtocell base station is still in operation when there are no users around it, it will inevitably waste electrical energy, and the electromagnetic waves emitted by it will cause electromagnetic pollution. SUMMARY OF THE INVENTION [0003] In view of the above, it is necessary to provide a femtocell base station capable of saving energy and a control method thereof. [0004]

A femtocell base station comprising a controller, a memory, a transmitter and an interface. The memory is stored with a note: :

Book user identity information, probability values of a plurality of time periods, and a comparison of the power saving rate and probability thresholds. The probability value is 1. The probability that the femtocell base station is accessed by a registered user in a time period. The power saving rate is a ratio of the time period in which the probability value is less than or equal to the corresponding probability threshold in all time periods, and the controller is connected to the memory, the transmitter and the receiver, and the controller The method includes: a setting module, configured to: select a corresponding probability threshold from the comparison table according to a predetermined or user-selected power saving rate; and a time module, configured to acquire a current time, and find a time period in which the pre-flight time is; the user The identification module is configured to identify, according to the registered user identity information stored by the sensible body, the access by the receiver is 099128194. Form Α Α 0101 苐 4 pages / total 24 pages °"2〇49561-〇201210375 述微微蜂巢Whether the base station is a registered user; the switching module 'is configured to send a close signal to the transmitter when the probability value of the current time period is less than the selected probability threshold, The transmit enable signal; and a counting module 'according to a user identity module and the recognition results to find out the time period modules, updating the probability value of the current period. [0005] [0007] [0008] [0008] [0008] A method for controlling a femtocell base station, the femtocell base station storing registered user identity information, probability values of a plurality of time periods, and provinces The electric rate and probability threshold comparison table, the control method comprises the steps of: receiving a power saving rate of the user's turn; selecting a corresponding probability threshold from the comparison table according to the input power saving rate; and finding the time of the current time Determining whether there is a user visit; determining whether the probability of the user access in the current time period is less than the selected probability threshold; if the probability of the current user access is less than the selected probability threshold, the femtocell base stops transmitting According to the current time period, whether there is a registered user access to update the probability of registered user access for the current time period. .::: h :i v ,: . _ . . ¥.

The femtocell base station provided by the present invention can reduce the energy consumption by turning off the transmitter of the femtocell base station when the probability value of the current time period is less than the probability value of the selection according to the power saving rate. BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be further described in detail below with reference to the accompanying drawings. Referring to FIG. 1, a femto-based base station 100 according to the present invention is provided. The femtocell base station 100 is a home base station that can transmit voice and data calls from the mobile phone 200 to a standard 399128194-based 3G core network. The femtocell base station 1 includes a memory 10, a transmitter 20, a receiver 30, and a controller. The controller 4 〇 form number A0101 page 5 / 24 pages 0992049561-0 201210375 is connected to the memory 10, the transmitter 20, and the receiver 30. The memory 10 stores a user identity information table, A plurality of registered user access status record tables, a registered user access probability table including a plurality of time periods, and a comparison table of power saving rates and access probability thresholds. [0009] In the present embodiment, the registered user identity information stored in the user identity information table in the memory 10 is an I MSI (International Mobile Subscriber Identity) of a plurality of mobile phones SI Leica. . Record Table The details of the probability table and the comparison table will be described later. [0010] The transmitter 20 is configured to transmit signals, and the transmitter 2 can adopt various specifications, for example, GSM (Global System for Mobile Communications), (Wideband Code Division Multiple Access) Multiplex access), Wimax (Worldwide Interoperability f〇r

Microwave Access, Worldwide Interoperability for Microwave Access, LTE (L〇ng

Term Evolution, Long Term Evolution) or WLAN (Wireless

Local Area Network, wireless area network, etc. In the present embodiment, when the femtocell base station 100 is operated for the first time, the transmitter 20 is in an on state. Of course, the transmitter 2 〇 can also be initially set to the off state. When the transmitter 2 is initially set to the off state, the transmitter 2 开启 can be turned on when the registered user accesses, or the transmitter is turned on when the controller 40 determines that the registered user access probability of the current time period exceeds the probability set by the user. 2 〇. [0011] 099128194 The receiver 30 is configured to receive a signal, and the receiver 3〇 adopts the same specifications as the transmitter 20. The receiver 3 〇 is always on. 0992049561-0 Form No. A0101 Page 6 / Total 24 Page 201210375 [0013] [0015] [0015] The controller 40 includes an input module 4ΐ, setting Module 42, time module 43, user identification module, block 44, recording module 45, statistics module 46, switching module 47, and startup module 48. The input module 41 is configured to receive the input power saving rate value h, where 〇% h 100%. The power saving rate h may be preset by the manufacturer or may be set by the user. The power saving rate value h indicates a ratio of the femtocell base station 100 in a power saving state during the entire operation, which is described in the present embodiment, and the power saving rate value is selected to be 50%. Of course, if the user wants the femtocell base station to be in a power saving mode for more time, the power saving rate value can be set higher, for example, 7〇% or 8〇%. The setting module 42 is configured to select, according to the provincial 1 rate value h, the access probability of the femtocell platform to be switched from the power saving rate and the probability threshold value table to the power saving mode. Probability threshold. Referring to FIG. 4, the comparison ‘package, n+1 probability thresholds~ and the power saving rate corresponding to each probability threshold pk−1. The =1 ί / η, \ is an integer, taken from 0 · · · η. The Sk = c / n, wherein the probability value Fij in the probability table is less than or equal to the number of corresponding probability thresholds, the power saving rate, that is, the time period in which the access probability is less than or equal to the corresponding probability threshold The proportion of all time periods. In the embodiment, the power saving ratio and the access probability threshold comparison table include a probability threshold PQ_p & power saving rate s_s. The setting module 42 is configured to determine, according to the power saving ratio and the access probability difficulty comparison table, whether s, sn are greater than or equal to h, and extract a probability threshold corresponding to the first eligible Sk as the current Threshold. In s〇 to 099128194 Form No. A0101 Page 7 of 24 0992049561-0 201210375. The power saving rate is 5_^ is the first eligible power saving rate, so the setting module 42 extracts the corresponding probability threshold value, that is, 0.75. Of course, the setting module 42 can also extract the probability threshold value corresponding to the actual power saving rate Sk that is the smallest difference from h6 as the current threshold value. [0016] The time module 43 is used to obtain the current time and find the current time. The time period in which it is located. In this implementation manner, the time module 43 acquires the current system time of the femtocell base station 1 and compares with each time period in the registered user access probability table to find the current time. Time period. [0017] The user identification module 44 is configured to determine whether a user accesses the femtocell base station 100 and identifies whether the accessed user is a registered user. In this embodiment, the user identification module 44 determines whether the receiver 30 receives the accessed signal. When the user accesses, the user identification module 44 also determines the identity information of the tenant accessed through the receiver 30. Whether: ... 2:: exists in the user identity information of the memory 10, that is, whether the IMSI of the access mobile green is stored in the memory 10. If so, the user who determines the access is a registered user, and sends a recording signal to the recording module 45 and the startup module 48. If the IMSI of the mobile phone is not found, the user who is considered to be an access is an illegal user. [0018] The recording module 45 is configured to change the access status record table according to a time period that is received by the receiving user identification module 44 and the time period detected by the time module 43. Referring to FIG. 2, the record table is composed of an ixj matrix including a plurality of state parameters aij, each state parameter corresponding to a time period Tu_, where i, j are natural numbers, and the initial values of the state parameters a{j are 0 099128194 Form number A0101 Page 8 of 24 S 0992049561-0 201210375 [0019] Ο [0020] 002 [0021] 099128194. If the recording module 45 receives the recording signal sent by the user identification module 44, the status parameter a.. of the current time period is set to 1 according to the time period found by the time module 43. In the embodiment, the recording module 45 further includes a timing sub-module 450, and the timing sub-module 450 is configured to determine whether the end of the time period is reached, and if the recording module 45 does not receive the time end point. The record signal sent to the subscriber identity module 44 then sets the state parameter of the time period to zero. In this embodiment, the timing sub-module 450 acquires the current time period acquired by the time module 43 and continuously acquires the current system time of the femtocell base station 100, and determines whether the current system time reaches the time module. 4 3 The end point of the time period obtained. Of course, the state parameter au can also take a negative number, a decimal value or the like. If a negative number is taken, the subsequently calculated parameters should also take a negative number accordingly. The results of the subsequent calculations of the results of the decimals can be normalized. In the present embodiment, the memory 10 stores eight record tables, each representing 8 weeks, and each record table is a 6x_7 matrix _, that is, i = 6 ' j = 7. The 7 columns represent Monday to Sunday, 6 rows represent Six of the four hours of the day, that is, one period represents 4 hours, and the length of the period is preferably an integral multiple of the location update timer period of the mobile phone. Of course, the number of the record tables may also take other values, which are also divided into more time periods per day, or the units of the week are replaced by months, and the units of the time period are replaced with days. The statistic module 46 is configured to calculate a time period that the time module finds the registered user's access probability to the femtocell base station and record the statistical result into the access probability table. In this embodiment, please refer to the form number A0101, page 9 / page 24 0992049561-0 201210375. Figure 3 'The probability table is the same as the record table table, and the probability table is composed of a plurality of probability values Fu. The ixj matrix is composed, and each probability value Fu is calculated by the formula m/n, where m is the sum of the state parameters of all the time periods of the record table, and n is the number of the record tables. In the present embodiment, the n is 8. The probability value indicates the probability that each time period is accessed by a registered user during these 8 weeks. The statistic module 46 calculates a new probability value Fij corresponding to the time period by using the formula m/n. After the recording module 45 updates the access state record table, the statistic module 46 also updates the probability table accordingly. The time module 43 finds the probability value of the time period. The modification of the time period probability in the probability table by the statistic module 46 continually reflects the usage habit of the user to the femtocell base station 1 at different time periods from the probability table. [0023] The switching module 47 is configured to send a shutdown signal to the transmitter 20 when the approximate value F.. of the current time period is less than the selected probability threshold, otherwise send a startup signal. The switching module 47 determines whether the probability value F丨· of the current time period is smaller than the probability threshold extracted by the setting module 42. [1. If less than, the switching module 47 sends a shutdown signal to the transmitter 20, otherwise, an activation signal is sent to the transmitter 20. In this embodiment, the switching module π acquires the time period found by the time module 43 and compares whether the probability value Fu of the time period is smaller than the probability threshold p extracted by the setting module 42. For example, if the time period found by the time module 43 is any one of the 8th to the 16th points of the probability table\Monday to the weekday, the probability value Fy of the time periods is smaller than the probability valve. The value p6, so the switching module 47 sends a shutdown signal to the transmitter 2〇 during the period of time, 099128194 Form No. A0101 Page 10 / Total 24 Page 0992049561-0 201210375 [0024] Ο [0025] [0026] Ο [ 0027] The femtocell base station 1 is placed in a power saving mode to save power. If the time period detected by the time module 43 is the remaining time, the switching module 47 sends a start signal to the transmitter 20, so that the femtocell base station 1 is in the normal mode. The startup module 48 is configured to send a startup signal to the transmitter 20 when a registered user accesses. In this embodiment, the startup module 48 is configured to: when the recording signal is received, The transmitter sends a start signal. Since the startup module 48 can activate the transmitter 20 when receiving the recording signal, so that the femtocell base 100 is in a power saving state, 'can still be activated, thereby ensuring registration' ί:ΐ· ···* = The user can still use the 毫 terminal femtocell base station 100 ° '. In: Please refer to FIG. 5 , which is a control of the nano 撖 honeycomb base station 100 provided by the present invention. The method includes the following steps: Step S110: Receive a power saving rate input by a user. In this embodiment, the user sets the power saving rate value of the femtocell base station by using the input module 4 It is 50%. / ϋ Step S113: Select a corresponding probability threshold according to the power saving rate value. In the embodiment, the setting module 42 determines the power saving rate 314 from the power saving rate and the access probability threshold value table, and extracts the first power saving rate that satisfies the condition Sk h. The probability threshold Pk is taken as the current threshold. Of course, the setting module 42 can also extract a probability threshold value corresponding to the power saving rate S with the smallest difference from h as a threshold value. If the power saving rate value h has been set by the manufacturer, or in the femtocell 099128194, the form number A0101 is true/total 24 pages 0992049561-0 201210375 [0028] [0030] [0031] [0032 [0033] 099128194 The base station 100 has been set at the time of the last power-on, and the step g 1 1 and the step S113 may be omitted. Step S116: Find the time period in which the current time is located. In this implementation manner, the time module 43 acquires the current system time of the femtocell base station 1 and compares with each time period in the registered user access probability table to find the current time. Time period. Step S119: It is judged whether there is a user access. In this embodiment, the user identification module 44 determines whether the receiver 30 receives a signal accessed by the user. f Step S122: Determine whether the probability of the user access in the current time period is less than the selected probability threshold. In this embodiment, when the user who is not accessed or accessed by the user is not the registered user, the switching module 47 determines whether the probability value Fu of the current time period is smaller than the p6 extracted by the setting module 42. Step S128: Control the femtocell; the base station 1 stops transmitting the signal. In this embodiment, when the probability of the user access in the current time period is less than the threshold value of the pre-negative, the switching module 47 sends a shutdown signal to the transmitter 2 to turn off the transmitter 2〇. Step S1 31: Determine whether the end point of the current time period is reached. In the present embodiment, the timing sub-module 450 of the recording module 45 determines whether or not the time period end point is reached. Step S134: Update the probability of the registered user access in the current time period according to the current time period of the user access. In this embodiment, if the recording module 45 receives the recording signal sent by the user identification module 44, the recording module 45 sets the status parameter of the time period to 1. Form No. A0101 Page 12 / Total 24 Page 0992049561-0 201210375 If the recording module 45 still does not receive the recording signal sent by the user identification module 44 to the end of the time, the riding record module (4) the status parameter of the time period Set to 〇. The statistics module 46 uses the formula m/n to calculate a new probability value for the current time period and update the probability table. [0034] Step S137. When the probability of the user access in the standby time period is greater than a preset threshold, the femtocell base station 1 is controlled to start transmitting signals. In this embodiment, the switching module sends an enable signal to the transmitter to enable the transmitter 20 » 〇 [0035] multiple steps S140. Determine whether the identity information of the accessed user meets the pre-stored user identity information. . In this embodiment, the user identification module 44 determines whether the identity information of the user accessed by the receiver 30 exists in the user identity information table of the memory 10. [0036] Step S143: Controlling the femtocell base station 1 to start transmitting signals. In this embodiment, if the identity information of the visited tenant is present in the user identity tit table of the memory 10, the recording signal is sent to the recording module 45 and the startup module 48. The activation module 48 sends an activation signal to the transmitter 20 when receiving the recording signal. [0037] If there is a user accessing the femtocell base station 100 in step S119, then go to step S140. Thereby, the step of judging whether or not to turn on the transmitter 20 of the femtocell base station 100 is entered. [0038] In step S140, if the identity information of the accessed user does not meet the pre-stored user identity information. Then, the process goes to step S122, so as to judge whether the transmitter 20 is to be turned on according to the preset threshold value, and realize the energy saving item 099128194 Form No. A0101 13th Buy/Total 24 Page 0992049561-0 201210375. [0039] In step S122, when the probability of the user access in the current time period is greater than the preset threshold, then the process goes to step S137 to turn on the transmitter 20 of the femtocell base station 100. [0040] In step SI 31, if the current time period end point is not reached, then go to step SI1 9, and continue to determine whether there is user access in the current time period. [0041] When entering the next time period, steps S119-S143 are repeated again, thereby continuously updating the probability value F.. in the probability table and switching the femto

1 J Operation status of the honeycomb base station. [0042] The femtocell base station provided by the present invention can reduce the energy by turning off the transmitter of the femtocell base station when the probability value of the current time period is less than the probability threshold selected according to the power saving rate. Consumption. In addition, those skilled in the art can make other changes within the spirit of the invention, and all changes that are made according to the spirit of the invention are included in the scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS [0044] FIG. 1 is a block diagram of a femtocell base station provided by the present invention; [0045] FIG. 2 is a record table in the femtocell base station of FIG. 3 is a probability table in the femtocell base station of FIG. 1; [0047] FIG. 4 is a comparison table of power saving rate and probability threshold in the femtocell base station of FIG. 1; [0048] FIG. Flowchart of the control method of the femtocell base station. 099128194 Form number Α0101 Page 14 of 24 0992049561-0 201210375

[Main Component Symbol Description] [0049] Femtocell Base Station 100 [0050] Memory 10 [0051] Transmitter 20 [0052] Receiver 30 [0053] Controller 40 [0054] Input Module 41 [0055] Setting Kernel Block 4 2 [0056] Time Module 43 [0057] User Identification Module 44 [0058] Recording Module 4 5 [0059] Timing Submodule 450 [0060] Statistics Module 46 [0061] Switching Module 47 [0062] Startup Module 48 [ 0063] Mobile Phone 2 0 0

099128194 Form No. A0101 Page 15 of 24 0992049561-0

Claims (1)

201210375 Seven Application Special Pain®: One Mu's Micro Honeycomb Base Station, the money micro-bee base includes controller, integrated, transmitter and receiver 'memory storage health: registration: household identity information' plural The probability value of the time period, and the power saving rate and the probability threshold value pair 'the root table, the probability value is the probability that the femtocell base station is accessed by the registered user in the time period, and the power saving rate is The probability value is less than or equal to a proportion of a time period of the corresponding probability threshold in all time periods, the controller is connected to the memory, the transmitter and the receiver, and the controller comprises: a setting module The power saving rate used for root predetermination or user input is taken from the comparison 4 table and the corresponding probability threshold is used; the time piece is used to obtain the current time, and the time period in which the current time is located is found; the user identification module 'identifying, by the registered user identity information stored in the memory, whether the femtocell base station is accessed by the receiver is a registered user; a switching module for when the current time Segment: when the probability value is less than the selected threshold value, the shutdown signal is sent to the transmitter, otherwise the activation signal is sent; and the statistics module is configured to identify the result according to the user identification module and The time period found by the time module 'updates the probability value of the current time period. 2. The femtocell base station as described in claim 1, wherein the memory stores a user identity information table, n record tables, and a probability table, wherein the record table includes plural numbers The i X j matrix of the status parameters is composed of 'each state parameter corresponding to a time period, when the time period has a note 099128194 Form No. A0101 Page 16 / Total 24 莨 0992049561-0 201210375 The user accesses the Femto Honeycomb In the case of the base station, the state parameter is if there is no access, the state parameter is 0, and each state parameter has an initial value of zero; the probability table is the same as the record table structure, and includes the plurality of The ixj matrix of the probability value is composed; the statistical module calculates the probability value of the time period of the inter-module module by using the formula m/η, where m is the sum of the state parameters of the time period corresponding to all (four) tables. 3. The femtocell base station according to claim 2, wherein the memory is further stored - a comparison table of power saving rate and probability threshold, the comparison table comprising n + 1 probability valves value? 〖And 11 + 1 power saving rate, where k is > an integer from 0...1!, Sk4c/n, c is the number of probability thresholds in the probability table that are less than or equal to the corresponding probability threshold Pk The module is used to determine the power saving rate from S〇 to Sn one by one in the comparison table, and extract the first power saving rate 3 corresponding to the condition Sk h, and the corresponding probability threshold 匕 is used as the threshold value. The K-type identification module is configured to send a recording signal when it is determined that the identity information of the user accessed by the receiver exists in the user identity information of the memory, and the controller further includes: 〉 an input module, a power saving rate for receiving the input; ': a recording module, configured to determine whether the recording signal is received by the time period searched by the time module, and if the recording signal is received, corresponding to the recording table The state parameter of the time period is set to 1. If the recording signal is not received, the state parameter of the corresponding time period in the record table is set to 0; the switching module is further configured to determine the current time period. Whether the probability value is greater than the setting module Taken threshold probability P, is greater than if the switching module transmits a start signal K to the transmitter, or to the signal transmitter sends off. The femtocell base station of claim 3, wherein the controller further includes a startup module for receiving The recording signal sent by the subscriber identity module sends an activation signal to the transmitter when receiving the recording signal. 5. The femtocell base station of claim 3, wherein the recording module further comprises a timing sub-module, configured to acquire a time period found by the time module, and determine whether the arrival time is reached. At the end point of the time period, if the recording module does not receive the recording signal by the time end point, the recording module sets the state parameter a.. of the time period to zero. 1 J 6. The femtocell base station according to claim 1, wherein the initial state of the transmitter is an open state. 7. A method for controlling a femtocell base station, wherein the femtocell base station stores a registered user identity information, a probability value of a plurality of time periods, and a comparison table between a power saving rate and a probability threshold, The control method comprises the steps of: receiving a power saving rate input by the user; selecting a corresponding probability threshold from the comparison table according to the input power saving rate; finding a time period in which the current time is; determining whether there is a user access; determining the current time period Whether the probability of user access is less than the selected probability threshold » If the probability of user access in the current time period is less than the selected probability threshold, the femtocell base station stops transmitting signals; according to whether there is a registered user access according to the current time period, Updates the probability of registered user access for the current time period. 8. Control of the femtocell base station as described in claim 7 of the patent application section 099128194 Form No. A0101 Page 18 of 24 0992049561-0 201210375 Method, wherein the control method of the femtocell base station The method further includes the following steps: when there is a user access, determining whether the identity information of the accessed user meets the pre-stored user identity information. 9. The method of controlling a femtocell base station according to claim 8, wherein the step of determining whether the identity information of the accessed user meets the pre-stored user identity information further comprises the following steps: The identity information of the accessed user conforms to the pre-stored user identity information, and the femtocell base station starts to send a signal. 10. The control method of the femtocell base station according to claim 7, wherein the control method of the femtocell base station further comprises the following steps: when the probability of user access in the current time period is greater than When the probability threshold is selected, the femtocell base station starts transmitting signals. 099128194 Form No. A0101 Page 19 of 24 0992049561-0