CN101815247B - Method for setting period of broadcast channel - Google Patents
Method for setting period of broadcast channel Download PDFInfo
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- CN101815247B CN101815247B CN200910004291.0A CN200910004291A CN101815247B CN 101815247 B CN101815247 B CN 101815247B CN 200910004291 A CN200910004291 A CN 200910004291A CN 101815247 B CN101815247 B CN 101815247B
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- cycle
- broadcast channel
- paging
- base station
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a method for setting the period of a broadcast channel, which is used for setting the period of the broadcast channel of a femto base station at low power consumption mode. In the method, the femto base station sets the period of the broadcast channel according to the parameters of a terminal in an idle mode within the control range. Due to the technical scheme of the invention, frequent location update is avoided when the broadcast of the femto base station is not received by the terminal in the idle mode, and the unnecessary power waste of the terminal is reduced.
Description
Technical field
The present invention relates to the communications field, and especially, relate to a kind of method to set up of period of broadcast channel.
Background technology
In wireless communication system, base station (Base Station, referred to as BS) refer to the equipment that service is provided for terminal, BS communicates by uplink downlink and terminal, wherein, descending (forward direction) link refers to that base station arrives the direction of terminal, and up (oppositely) link refers to the direction of terminal to base station.And a plurality of terminals can send data by up link to BS simultaneously, also can receive data by down link from BS simultaneously.
In correlation technique, the wireless coverage quality in the mobile network is to affect the key that the user enjoys high-speed data, voice and Video service.For realizing the seamless coverage of wireless network, need emphasis to solve wireless coverage problem indoor, hot zones, mainly contain at present following two kinds of embodiments: a kind of is quantity and the density that increases macro base station (Macro BS, Macro Cell); Another kind is in lower little base stations of transmitting power such as indoor location femto base station (Femto Base Station, referred to as Femto BS) or femto base stations (Pico Base Station, referred to as Pico BS).
Adopt traditional macro base station, approached the capacity limitation that frequency spectrum is used, increase again the macro base station that power is larger, only can cause more radiation pollution, can not be coated with improvement to indoor, and utilize the little base stations such as Femto BS, Pico BS not only can solve well wireless coverage problem indoor, hot zones, and can be larger on existing frequency spectrum resource improve power system capacity.
Standard document according to up-to-date femto BS, femto BS is in the terminal that does not need service, or its terminal of administering is all in idle (idle) pattern lower time, femto BS can enter low-power consumption mode (low duty), under low duty pattern, if the system information of femto BS sends available/unavailable interval (also can be called paging and monitor the unavailable interval of the interval/paging) mismate under cycle and terminal i dle state, just there will be terminal to can not receive the situation of system message at the paging listening intervals, when terminal can not receive the system message of femto at place, terminal just likely receive other base station system message (for example, macro base station), also likely receive other femto BS or the signal of pico BS, if the PG ID that the PG of these base stations sign (IDentification) is preserved with terminal is different, will cause the position renewal.But, if terminal is received again the system message in the femto BS of low duty pattern, can again cause the position renewal, so just there will be ceaselessly location update operations, cause unnecessary loss.In addition, if terminal can not receive system message, can keep state of activation to till receiving system message always, thereby cause unnecessary energy loss.Therefore, need the method for adjustment in broadcast channel (Broadcasting CHannel, referred to as BCH) cycle under a kind of duty of the low in femto base station pattern in correlation technique, to avoid the problems referred to above.
Summary of the invention
Consider femto BS in correlation technique under low duty pattern with terminal the paging under the idle pattern monitor the unavailable interval mismate of interval/paging and the frequent position of causing is upgraded and the problem of energy loss and propose the present invention, for this reason, main purpose of the present invention is to provide a kind of method to set up of improved period of broadcast channel, to solve the problems referred to above of existing in correlation technique one of at least.
To achieve these goals, according to an aspect of the present invention, provide a kind of method to set up of period of broadcast channel, for the period of broadcast channel of the femto base station under low-power consumption mode is set.
According to the method to set up of period of broadcast channel of the present invention, comprise: femto base station arranges the cycle of broadcast channel according to the parameter of the terminal in idle pulley in its compass of competency.
Preferably, the idle pulley configuration parameter that above-mentioned parameter is the whole terminals in idle pulley in the femto base station compass of competency, wherein, all the idle pulley configuration parameter of terminal is identical.
Preferably, the cycle that broadcast channel is set comprises: the cycle of main broadcast channel and the cycle of secondary-broadcast channel are set.
Preferably, the cycle of main broadcast channel and the cycle of secondary-broadcast channel being set comprises: the cycle portions of the cycle of main broadcast channel and/or secondary-broadcast channel or the paging that all is arranged on each paging cycle of terminal are monitored in interval.
Preferably, the cycle portions of cycle of main broadcast channel and/or secondary-broadcast channel is set or all is arranged on institute's paging according to the idle pulley configuration parameter and monitor in interval and comprise: make original position and the paging in the cycle of cycle of main broadcast channel and/or secondary-broadcast channel monitor interval original position identical, and, the integer that the cycle of main broadcast channel and/or the cycle of secondary-broadcast channel are paging cycle/mono-, wherein, described idle pulley configuration parameter at least comprises: paging cycle, paging offset amount, paging interval length.
Preferably, satisfied following formula: Ceil ((P1-K)/m) * m of the cycle of main broadcast channel or the cycle of secondary-broadcast channel<(P1+P2-K), wherein, the cycle that m is main broadcast channel or the cycle of secondary-broadcast channel, the unavailable interval of the paging that P1 is terminal, P2 is that interval, the interval of the paging offset of the cycle that K is main broadcast channel or the cycle of secondary-broadcast channel and terminal are monitored in paging.
Preferably, said method also comprises: broadcast channel is monitored the interval transmission femto base station system information that broadcast channel need to transmit under normal mode of operation in paging, and wherein, system information comprises: the state information of femto base station.
Preferably, said method also comprises: when the terminal in idle condition need to be carried out the position renewal, to the femto base station under the low-power consumption down state, send the ranging code activating femto base station; Femto base station receives ranging code, enters state of activation/low-power consumption upstate, and execution and the corresponding processing of position renewal.
Preferably, after femto base station is carried out and to be upgraded corresponding the processing with position, said method also comprises: femto base station in the situation that do not receive the signal that terminal sends, reenters the low-power consumption down state.
Preferably, after the femto base station executing location is upgraded corresponding the processing, said method also comprises: femto base station in the situation that with the terminal successful connection, enter normal operating conditions.
By means of technical scheme of the present invention, the cycle of broadcast channel is set by the parameter according to the terminal in idle pulley in femto BS compass of competency, solved femto BS in the correlation technique under low-power consumption mode with terminal the paging under idle pulley monitor interval/paging unavailable interval mismate and the frequent position of causing is upgraded and the problem of energy loss, avoided the terminal under the idle pattern in the situation that can not receive the broadcast of femto BS, occur frequently carrying out more news of position, and reduced unnecessary power dissipation.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, or understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification write, claims and accompanying drawing.
The accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms the part of specification, for explaining the present invention, is not construed as limiting the invention together with embodiments of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the method to set up of the period of broadcast channel of the embodiment of the present invention;
Fig. 2 enters the flow chart of idle state according to the terminal under the femto BS of the embodiment of the present invention;
Fig. 3 is the schematic diagram according to the example 1 of the embodiment of the present invention.
Embodiment
Functional overview
As mentioned above, in correlation technique, exist femto BS under low duty pattern with terminal the paging under the idle pattern monitor the unavailable interval mismate of interval/paging and the frequent position of causing is upgraded and the problem of energy loss, for this reason, the invention provides a kind of method to set up of improved period of broadcast channel, make femto BS that the cycle of broadcast channel is set according to the parameter of the terminal in idle pulley in its compass of competency.
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein, only for description and interpretation the present invention, is not intended to limit the present invention.
In the following description, for the purpose of explaining, a plurality of specific details have been described, to provide thorough understanding of the present invention.Yet, obviously, in the situation that there is no these specific detail, also can realize the present invention, in addition, in the situation that do not deviate from the spirit and scope that claims are illustrated, obtain each details in following embodiment and embodiment and can carry out various combinations.
Embodiment of the method
According to embodiments of the invention, a kind of method to set up of period of broadcast channel is provided, Fig. 1 is the flow chart according to the method to set up of the period of broadcast channel of the embodiment of the present invention, as shown in Figure 1, comprises following processing (step S102-step S104):
Step S102, femto BS enters low duty pattern;
Step 104, femto BS arranges the cycle of BCH according to the parameter of the terminal in the idle pattern in its compass of competency, and wherein, the Femto BS under low duty pattern regulates the transmission cycle of BCH between can/available life unavailable at Femto BS.
Particularly, in step S104, the idle pattern configurations parameter that the parameter of the terminal in the idle pattern is the whole terminals in the idle pattern in the femtoBS compass of competency, wherein, all the idle pulley configuration parameter of terminal is identical.Fig. 2 enters the flow chart of idle state according to the terminal under the femto BS of the embodiment of the present invention, as shown in Figure 2, comprise following processing:
Step 202, terminal enters the idle pattern or carries out the position renewal;
Step 204, paging controller (paging controller, referred to as PC) arranges or adjusts paging offset (paging offset), the unavailable interval of paging (pagingunavailable interval) and the paging of terminal and monitors interval (paging listening interval).
Particularly, terminal under Femto BS prepares to enter the idle state, this process can initiatively be initiated by terminal, also can be initiated by femto BS, when femto BS and PC carry out paging (paging) information reconciliation, PC is the characteristic of femto BS according to the BS under terminal, for paging offset, paging cycle and the paging interval of terminal distribution all possesses identical value.
In addition, at the fast mobile terminal under the idle pattern that other are arranged during to the situation under Femto BS, if terminal does not need to carry out the position renewal, and macro station can detect this terminal, terminal just can be take macro station as first-selected BS, if terminal can't detect macro base station, and in the time of need to being switched to femto BS from other BS, need to carry out the position renewal, when terminal position upgrades, the paging information of the idle mode terminal under its paging information and femto BS is carried out synchronously, so that its idle configuration information is consistent.
In step S204, the cycle that BCH is set comprises: cycle and the cycle that secondary-broadcast channel (SBCH) is set that main broadcast channel (PBCH) is set.Particularly, the paging that partly or entirely is arranged on each paging cycle of terminal (paging cycle) in the cycle of the cycle of PBCH and/or SBCH can be monitored in interval (paging listening interval), in order to achieve the above object, can adopt following two kinds of modes:
Mode one
According to parameters such as paging cycle, paging offset amount, paging interval length, the original position in cycle that cycle of PBCH and/or SBCH are set is identical with the original position of paging listening interval, and, the integer that the cycle of PBCH and/or the cycle of SBCH are pagingcycle/mono-.
Mode two
Make the cycle of PBCH or the cycle of SBCH meet following formula:
Ceil ((P1-K)/m) * m<(P1+P2-K), wherein, the cycle that m is PBCH or the cycle of SBCH, the unavailable interval of the paging that P1 is terminal (paging unavailableinterval), P2 is paging listening interval, the interval of the paging offset of the cycle that K is PBCH or the cycle of SBCH and terminal (paging offset).
Below, in conjunction with example, technique scheme is described.
Example 1, a pair of BCH of Femto BS occupation mode is adjusted.
Femto BS finds there is no terminal in its scope of administering, or all terminals are all in idle pattern lower time, enter low duty pattern, at this moment, Femto BS will judge oneself enters the idle pattern in which kind of situation, if belong to the situation that there is no terminal, just do not need to adjust the BCH of oneself, if belong to the administered situation of terminal under the idle pattern, just need to adjust PBCH and the SBCH of Femto BS, as shown in Figure 3, method of adjustment is as follows: according to paging cycle, the paging offset amount, the parameters such as paging interval length are adjusted the original position of PBCH and SBCH, PBCH after making to adjust is identical with the original position of terminal paging listening interval with the original position of SBCH, and, the integer that the cycle of SBCH after adjustment and the cycle of PBCH are paging cycle/mono-, for example, in base station side, the cycle of PBCH is 1/8th of terminal paging cycle, the cycle of SBCH is 1/3rd of terminal paging cycle.
Example 2, two couples of BCH of Femto BS occupation mode are adjusted.
Femto BS finds there is no terminal in its scope of administering, or all terminals are all in idle pattern lower time, enter low duty pattern, at this moment, Femto BS will judge oneself enters the idle pattern in which kind of situation, if belong to the situation that there is no terminal, just do not need to adjust the BCH of oneself, if belong to the administered situation of terminal under the idle pattern, just need to adjust PBCH and the SBCH of Femto BS, method of adjustment is as follows: the paging unavailable interval that establishes terminal is P1, the paging Listeninginterval of terminal is P2, the paging offset of PBCH and terminal is spaced apart k, the time interval m of PBCH meets following relation:
Ceil ((P1-K)/m) * m<(P1+P2-k); Wherein, P1, P2, K and M be take superframe as unit, are integer.
After above-mentioned processing, obtain a table about m in the scope that can allow at m, when Femto BS need to adjust the interval of PBCH, in upper table, select one.Can be processed by identical method SBCH, do not repeated them here.
Arranging by the way after BCH completes, BCH just can be in the paging of the terminal Listening interval transmission Femto BS system information that BCH need to transmit under normal mode of operation, wherein, system information comprises: the state information of Femto BS, that is, show the relevant information of Femto BS in low duty pattern.
When the terminal in the idle pattern need to be carried out the position renewal, can send range finding (ranging) code activation Femto BS to the Femto BS under low duty down state; Femto BS enters state of activation/low-power consumption upstate after receiving the ranging code of terminal transmission, and execution and the corresponding processing of position renewal.After Femto BS carries out and to upgrade corresponding the processing with position, Femto BS in the situation that do not receive the signal that terminal sends, reenters the low-power consumption down state.Perhaps, in the situation that Femto BS and terminal successful connection enter normal operating conditions.
In sum, by means of technical scheme of the present invention, the cycle of broadcast channel is set by the parameter according to the terminal in idle pulley in femto BS compass of competency, solved femto BS in the correlation technique under low-power consumption mode with terminal the paging under idle pulley monitor interval/paging unavailable interval mismate and the frequent position of causing is upgraded and the problem of energy loss, avoided the terminal under the idle pattern in the situation that can not receive the broadcast of femto BS, occur frequently carrying out more news of position, and reduced unnecessary power dissipation.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on single calculation element, perhaps be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, perhaps they are made into respectively to each integrated circuit modules, perhaps a plurality of modules in them or step being made into to the single integrated circuit module realizes.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. the method to set up of a period of broadcast channel, for the period of broadcast channel of the femto base station under low-power consumption mode is set, is characterized in that, described method comprises:
Described femto base station arranges the cycle of broadcast channel according to the parameter of the terminal in idle pulley in its compass of competency, comprise: the cycle of main broadcast channel and the cycle of secondary-broadcast channel are set, wherein, the cycle portions of the cycle of described main broadcast channel and/or described secondary-broadcast channel or the paging that all is arranged on described each paging cycle of terminal are monitored in interval.
2. method according to claim 1, is characterized in that, the idle pulley configuration parameter that described parameter is the whole terminals in idle pulley in described femto base station compass of competency, and wherein, the idle pulley configuration parameter of described whole terminals is identical.
3. method according to claim 1, is characterized in that, by the cycle portions of the cycle of described main broadcast channel and/or described secondary-broadcast channel or all be arranged on the institute paging and monitor in interval and comprise:
It is identical that interval original position is monitored in original position and the described paging that the cycle of cycle of described main broadcast channel and/or described secondary-broadcast channel is set according to described idle pulley configuration parameter, and, the integer that the cycle of described main broadcast channel and/or the cycle of described secondary-broadcast channel are described paging cycle/mono-, wherein, described idle pulley configuration parameter at least comprises: paging cycle, paging offset amount, paging interval length.
4. method according to claim 1, is characterized in that, the cycle of described main broadcast channel or the cycle of described secondary-broadcast channel meet following formula:
Ceil((P1-K)/m)*m<(P1+P2-K)
Wherein, the cycle that m is described main broadcast channel or the cycle of described secondary-broadcast channel, the unavailable interval of the paging that P1 is described terminal, P2 is that interval, the interval of the paging offset of the cycle that K is described main broadcast channel or the cycle of described secondary-broadcast channel and described terminal are monitored in described paging.
5. method according to claim 1, is characterized in that, described method also comprises:
Described broadcast channel is monitored the described femto base station of the interval transmission system information that described broadcast channel need to transmit under normal mode of operation in described paging, and wherein, described system information comprises: the state information of described femto base station.
6. method according to claim 5, is characterized in that, described method also comprises:
When the described terminal in idle condition need to be carried out the position renewal, send ranging code to the described femto base station under the low-power consumption down state and activate described femto base station;
Described femto base station receives described ranging code, enters state of activation/low-power consumption upstate, and execution and the corresponding processing of position renewal.
7. method according to claim 6, is characterized in that, after corresponding the processing upgraded in described femto base station execution and position, described method also comprises:
Described femto base station in the situation that do not receive the signal that terminal sends, reenters described low-power consumption down state.
8. method according to claim 6, is characterized in that, after described femto base station executing location is upgraded corresponding the processing, described method also comprises:
Described femto base station in the situation that with described terminal successful connection, enter normal operating conditions.
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| CN102857940B (en) | 2011-07-01 | 2016-08-10 | 华为技术有限公司 | Communication means and equipment and system |
| WO2014036691A1 (en) * | 2012-09-04 | 2014-03-13 | 华为技术有限公司 | Method for switching small base station state and small base station |
| CN106899942B (en) * | 2015-12-18 | 2020-02-14 | 北京信威通信技术股份有限公司 | Control method for broadcast information cycle transmission |
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