CN104811919B - A kind of network parameter acquisition methods, device and equipment - Google Patents

A kind of network parameter acquisition methods, device and equipment Download PDF

Info

Publication number
CN104811919B
CN104811919B CN201410035808.3A CN201410035808A CN104811919B CN 104811919 B CN104811919 B CN 104811919B CN 201410035808 A CN201410035808 A CN 201410035808A CN 104811919 B CN104811919 B CN 104811919B
Authority
CN
China
Prior art keywords
data packet
information
time interval
arrival time
type information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201410035808.3A
Other languages
Chinese (zh)
Other versions
CN104811919A (en
Inventor
江小威
陈卓
胡南
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Mobile Communications Group Co Ltd
Original Assignee
China Mobile Communications Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Mobile Communications Group Co Ltd filed Critical China Mobile Communications Group Co Ltd
Priority to CN201410035808.3A priority Critical patent/CN104811919B/en
Priority to PCT/CN2014/095356 priority patent/WO2015109920A1/en
Publication of CN104811919A publication Critical patent/CN104811919A/en
Application granted granted Critical
Publication of CN104811919B publication Critical patent/CN104811919B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H04W8/20—Transfer of user or subscriber data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • 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 kind of network parameter acquisition methods, device and equipment, providing auxiliary information for base station Configuration network parameter, achieving the purpose that the signaling overheads for saving data packet class business and reducing power consumption of terminal.Wherein, network parameter acquisition methods, comprising: base station obtains the corresponding business associated ancillary information of terminal from mobility management entity MME, and is the terminal Configuration network parameter according to the business associated ancillary information of acquisition.

Description

A kind of network parameter acquisition methods, device and equipment
Technical field
The present invention relates to wireless communication technology field more particularly to a kind of network parameter acquisition methods, device and equipment.
Background technique
Long term evolution (LTE, Long Time Evolution) starts the signaling overheads section for small data packets class business Save and reduce the standardization effort of power consumption of terminal.Small data packets class business mainly includes machine type communication (MTC, machine- Type communication) small data packets business and mobile terminal on some small data packets business (such as QQ business, Wechat business etc.).Small data packets class business is sent a data packet and is needed to consume many due to the data package size very little of transmission Space interface signaling, and cause signaling overheads excessive.In addition, the frequent transmission of small data packets class business also results in mobile terminal power consumption Excessive problem.For above-mentioned two problems, third generation partner program (3rd Generation Partnership Project, 3GPP) scheme that in conceptual phase provides a variety of schemes, but finally enter normalization period only includes introducing The sub- state of energy conservation (being directed to MTC super low-power consumption demand, realize super long standby time by saving sub- state) and core net provide auxiliary The long connected state scheme of protecting of supplementary information (by terminal or networks offer services auxiliary information come reasonable disposition network parameter, is realized Energy conservation and signaling overheads are saved).
Currently, for enter connected state terminal, base station there is no relevant information help its carry out network parameter (including DRX parameter, Connection Release timer (timer)) configuration so that base station is only full cell and configures identical network parameter, Rather than configured according to the specific business feature of terminal, therefore, it is difficult to reach to save signaling overheads and reduction power consumption of terminal Purpose.
Summary of the invention
The embodiment of the present invention provides a kind of network parameter acquisition methods, device and equipment, to for base station Configuration network ginseng Number provides auxiliary information, achievees the purpose that the signaling overheads for saving data packet class business and reduces power consumption of terminal.
The embodiment of the present invention provides a kind of network parameter acquisition methods, comprising: base station is obtained from mobility management entity MME The corresponding business associated ancillary information of the terminal.
As a kind of embodiment of the embodiment of the present invention, business associated ancillary information includes at least appointing in following information One or any combination: service type information, traffic direction information, service delay require information, service rate require information, Last time connects the arrival time information and a Connection Release and the time interval that connect foundation next time of the last one data packet Information；And
The associated ancillary information further includes one of following information or any combination: first kind information, second Type information, third type information, the 4th type information, the 5th type information, the 6th type information and the 7th type information, In,
The first kind information includes at least one of following information: adjacent two data packet interarrival times Phase in the average value of the burst quantity that maximum value, the duration of burst, a burst group include, a burst group The maximum value and average value, two neighboring burst group arrival time interval and data packet at adjacent two arrival time intervals burst Size information, wherein the criteria for classifying of burst and burst group is preset；
The Second Type information includes: that adjacent two data packet reaches time interval distributed intelligence；
The third type information includes: adjacent two data packet interarrival times information；
4th type information includes at least one of following information: a upstream data packet and the last time later The time interval information that downlink data packet is sent；Or the time interval information that downlink data packet is sent twice in succession；Either The instruction information sent before the no transmission there are downlink data packet without upstream data packet；
5th type information includes: to believe by the time that reaches of the data packet of data packet arrival time interval section record Breath；
6th type information include: it is for preset each data packet arrival time interval section record, referring to In range of fixing time adjacent data packet interarrival times belong to data packet arrival time interval section frequency information and Last time updates the temporal information of the frequency information；
7th type information includes: the statistical result and the statistical data in current statistic period of a upper measurement period, Wherein, the statistical result of a upper measurement period include it is for preset each data packet arrival time interval section record, Adjacent data packet interarrival times belong to the frequency information of data packet arrival time interval section in a upper measurement period, when The statistical data of preceding measurement period include it is for preset each data packet arrival time interval section record, in current statistic Adjacent data packet interarrival times belong to the frequency information of data packet arrival time interval section, current system in period Count the start time information in period.
The embodiment of the present invention provides a kind of network parameter acquisition device, comprising: obtaining unit, for real from mobile management Body MME obtains the corresponding business associated ancillary information of terminal.
As a kind of embodiment of the embodiment of the present invention, business associated ancillary information includes at least appointing in following information One or any combination: service type information, traffic direction information, service delay require information, service rate require information, Last time connects the arrival time information and a Connection Release and the time interval that connect foundation next time of the last one data packet Information；And
The associated ancillary information further includes one of following information or any combination: first kind information, second Type information, third type information, the 4th type information, the 5th type information, the 6th type information and the 7th type information, In,
The first kind information includes at least one of following information: adjacent two data packet interarrival times Phase in the average value of the burst quantity that maximum value, the duration of burst, a burst group include, a burst group The maximum value and average value, two neighboring burst group arrival time interval and data packet at adjacent two arrival time intervals burst Size information, wherein the criteria for classifying of burst and burst group is preset；
The Second Type information includes: that adjacent two data packet reaches time interval distributed intelligence；
The third type information includes: adjacent two data packet interarrival times information；
4th type information includes at least one of following information: a upstream data packet and the last time later The time interval information that downlink data packet is sent；Or the time interval information that downlink data packet is sent twice in succession；Either The instruction information sent before the no transmission there are downlink data packet without upstream data packet；
5th type information includes: to believe by the time that reaches of the data packet of data packet arrival time interval section record Breath；
6th type information include: it is for preset each data packet arrival time interval section record, referring to In range of fixing time adjacent data packet interarrival times belong to data packet arrival time interval section frequency information and Last time updates the temporal information of the frequency information；
7th type information includes: the statistical result and the statistical data in current statistic period of a upper measurement period, Wherein, the statistical result of a upper measurement period include it is for preset each data packet arrival time interval section record, Adjacent data packet interarrival times belong to the frequency information of data packet arrival time interval section in a upper measurement period, when The statistical data of preceding measurement period include it is for preset each data packet arrival time interval section record, in current statistic Adjacent data packet interarrival times belong to the frequency information of data packet arrival time interval section, current system in period Count the start time information in period.
The embodiment of the present invention also provides a kind of base station equipment, including above-mentioned network parameter acquisition device.
Network parameter acquisition methods, device and equipment provided in an embodiment of the present invention, base station obtain the terminal pair from MME The business associated ancillary information answered enables base station to configure network of relation according to the business associated ancillary information of acquisition for terminal Parameter, since base station is configured respectively for different terminals, to reach saving signaling overheads and reduce power consumption of terminal Purpose.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by written explanation Specifically noted structure is achieved and obtained in book, claims and attached drawing.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes a part of the invention, this hair Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the implementation process diagram of network parameter acquisition methods in the embodiment of the present invention；
Fig. 2 is that the implementing procedure of business associated ancillary information is obtained in establishing RRC connection procedure in the embodiment of the present invention Schematic diagram；
Fig. 3 is the structural schematic diagram of network parameter acquisition device in the embodiment of the present invention.
Specific embodiment
In order to realize that the signaling overheads for reducing data packet class business and the purpose for reducing power consumption of terminal, the embodiment of the present invention mention A kind of network parameter acquisition methods, device and equipment are supplied.
Below in conjunction with Figure of description, preferred embodiment of the present invention will be described, it should be understood that described herein Preferred embodiment only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention, and in the absence of conflict, this hair The feature in embodiment and embodiment in bright can be combined with each other.
Inventor has found that it is base station statistics that the one kind for solving above-mentioned technical problem, which possible solution, during invention Then the business feature of each terminal carrys out Configuration network parameter accordingly.However, since terminal related information in terminal enters the free time It can discharge when state, so that terminal base station after entering connected state next time does not have relevant information to configure, can only carry out blind Configuration.Simultaneously as most connection foundation comes from background service or heartbeat packet or processing business and updates, by of short duration friendship Terminal enters Idle state after mutually, and the information that base station can during this period of time count is seldom, and can not count last time connection The packet delay information that next time, connection was established is established, so being difficult to effectively carry out network parameter configuration according to it.
In consideration of it, passing through UE(terminal the embodiment of the invention provides a kind of network parameter acquisition methods) or base station receipts Collection business associated ancillary information is uploaded to MME(moving tube rationality entity in Connection Release), MME itself can also collect one Determine business associated ancillary information or MME can also be from SGW(signaling gateway) at obtain some business associated ancillary informations, work as UE When entering connected state next time, base station can download the business associated ancillary information of its preservation from MME, and according to the business of downloading Associated ancillary information is terminal Configuration network parameter.
As shown in Figure 1, be the implementation process diagram of network parameter acquisition methods provided in an embodiment of the present invention, including with Lower step:
S101, base station obtain the corresponding business associated ancillary information of terminal from mobility management entity MME；
Wherein, business associated ancillary information can be by business or the instruction of QCI(service quality rating) it counts, it can also be with It is not distinguish statistics.Particular content may include at least one of following information or any combination: service type information is (such as Fruit differentiated service may include when being counted), traffic direction information (uplink service/downlink business, if differentiated service direction May include when being counted), service delay require information (if differentiated service or QCI are not counted, provides most Tight delay requirement), service rate require information (if differentiated service or QCI are not counted, provide most tight speed Rate requirement), last time connects the last one data packet and (if distinguish uplink service/downlink business and counted, provides respectively Last time connects the last one upstream data packet/downlink data packet) arrival time information and a Connection Release with connect next time Connect the time interval information of foundation.
When it is implemented, associated ancillary information further include one of following information or any combination (when it is implemented, Uplink/downlink can be divided to be counted, uplink/downlink can not also be distinguished and counted): first kind information, Second Type letter Breath, third type information, the 4th type information, the 5th type information, the 6th type information and the 7th type information.
First kind information includes at least one of following information: when adjacent two data packet reaches in a burst Between the maximum value, the duration of burst, the burst group that are spaced the burst quantity that includes average value, one The maximum value at interval of two neighboring burst arrival time and between average value, two neighboring burst group arrival time in burst group Every and data package size information.Wherein, the criteria for classifying of burst and burst group is preset.
Preferably, how dividing burst and burst group can be divided according to data packet interarrival times, for example, It can specify that data packet arrival time is spaced in much ranges and belong to a burst, arrival time is spaced in much time delay models Burst in enclosing belongs to a burst group.
Preferably, data package size information can be, but not limited to include the data packet mean size information in measurement period Or the CDF(cumulative function of each data package size is distributed in measurement period) information.
Second Type information includes: the distributed intelligence that adjacent two data packet reaches time interval.
Wherein, the distributed intelligence that adjacent two data packet reaches time interval can be CDF information, and it is every to be also possible to statistics The probability in a time interval section.
Preferably, can be counted according to form shown in following table 1, (information is either separate service (or QCI) Counted, it is total to be also possible to all business statistics one):
Table 1
Third type information includes: adjacent two data packet interarrival times mean information.
When it is implemented, third type information includes the fluctuation that can also include adjacent two data packet interarrival times Range information.Wherein, third type information can count comparison rule class business.
4th type information includes at least one of following information: a upstream data packet and the last downlink later The time interval information (can be CDF information or time interval maximum value) that data packet is sent；Or line number is descended twice in succession The time interval information (can be CDF information or time interval maximum value) sent according to packet；Or whether in the presence of row data The instruction information that packet is sent before sending without upstream data packet.
When it is implemented, can be combined with first kind information or Second Type information/third type information/the 4th class Type information/the 5th type information is counted.
5th type information includes: to reach temporal information by the data packet of data packet arrival time interval section record, When it is implemented, the maximum number of each section record and the maximum number in time interval section can also be set.
It is divided into certain section when it is implemented, data packet can be reached to time interval (such as standard defines number According to the possibility value in packet packet interarrival times section, or by realize determine how demarcation interval), for each section, only remember Arrival time that record is N number of recently to fall data packet in the range with upper data packet interarrival times (such as: 30 divide when 15 20 seconds).When it is implemented, can not also demarcation interval, record the arrival time of all data packets, until reach record the upper limit be Only.
Preferably, can be counted according to form shown in table 2:
Table 2
Data packet arrival time interval section (s or ms) Data packet arrival time list (list size N)
A1~B1
A2~B2
…
6th type information includes: for data packet arrival time interval section record, adjacent data packet arrival time Interval belongs to the occurrence frequency information of data packet arrival time interval section and the last time updates the occurrence frequency information Temporal information.
It is divided into certain section when it is implemented, data packet can be reached to time interval (such as standard defines number According to the possibility value in packet packet interarrival times section, or by realize determines how demarcation interval), for each section, record Data packet interarrival times fall in the frequency in the section in a period of time and last time updates time of the value.Preferably, can It is counted by according in the form of shown in table 3:
Table 3
Data packet arrival time interval section (s or ms) Occurrence frequency (such as number/hour) Renewal time last time
A1~B1
A2~B2
…
Preferably, can be updated in accordance with the following methods to table 3:
For any data packet interarrival times section, consecutive number at the appointed time range is determined in accordance with the following methods Belong to the frequency of data packet arrival time interval section according to packet interarrival times:
Step 1: any data packet interarrival times section is directed to, if the arrival of current data packet and a upper data packet When time interval belongs to data packet arrival time interval section, the arrival time of current data packet is determined；
Step 2: determining the last time for updating the corresponding frequency information of data packet arrival time interval section；
Step 3: determining that this data packet interarrival times belongs to the data packet interarrival times according to following formula The frequency in section:Number/hour；And when determining that adjacent data packet reaches at the appointed time range according to following formula Between interval belong to the frequency of data packet arrival time interval section: α * f1+(1-α)*f1', in which: T is the measurement period of frequency Size；t1For the arrival time of current data packet；t2The corresponding frequency of data packet arrival time interval section is updated for the last time The time of information；α is that this preset data packet interarrival times belong to data packet arrival time interval section The corresponding weight of frequency；f1Belong to the generation frequency of data packet arrival time interval section for this data packet interarrival times Rate；f1' be current record the corresponding occurrence frequency of data packet arrival time interval section.
For example, by taking measurement period is 1 hour as an example, when moment A(is accurate to the second) data packet be (when the data packet reaches Between interval fall in section (A1, B1)) reach after, check that this (A1, B1) section renewal time last time is that B(is accurate to the second), then The secondary obtained data packet interarrival times that sample fall in the occurrence frequency in section (A1, B1) as 3600/(A-B) number/hour； Assuming that the 0.1 of the weight of this sampling, then data packet interarrival times are fallen on the occurrence frequency=0.9* in section (A1, B1) This occurrence frequency for being calculated of the occurrence frequency+0.1* of secondary record.
7th type information includes: the statistical result and the statistical data in current statistic period of a upper measurement period, wherein The statistical result of a upper measurement period includes for the data packet arrival time interval section record, phase in a upper measurement period Adjacent data packet interarrival times belong to the occurrence frequency information of data packet arrival time interval section, the current statistic period Statistical data include for data packet arrival time interval section record, in the current statistical cycle adjacent data packet reach when Between interval belong to frequency information, the start time information in current statistic period of data packet arrival time interval section.
When it is implemented, the statistical data in current statistic period can also include current statistic cycle information, if not including When, then it is counted according to default cycles.
When it is implemented, can be counted according to form shown in table 4, the left side " statistical result of a upper measurement period " Part represent according to the data packet that counts of result of previous measurement period fall in each data packet interarrival times The occurrence frequency in section；Right side " statistical data in current statistic period " indicates each data packet arrival time in this measurement period Interval section adds up frequency, current statistic cycle information and this statistics initial time.
Table 4
Preferably, the 7th type information can be updated in accordance with the following methods:
After current statistic end cycle, for preset each data packet arrival time interval section, according to following public affairs Formula updates the corresponding occurrence frequency information of data packet arrival time interval section: β * f2+(1-β)*f2', in which: β is current system Adjacent data packet interarrival times belong to the corresponding power of frequency of data packet arrival time interval section in the meter period Weight；f2Belong to the generation of data packet arrival time interval section for adjacent data packet interarrival times in the current statistic period Number；f2' it is that adjacent data packet interarrival times belong to data packet arrival time interval section in a upper measurement period Occurrence frequency.
Specifically, in the current statistical cycle, counting its generation time for any data packet interarrival times section Number updates the occurrence frequency in " statistical result of a upper measurement period " after the completion of current period statistics, if current period is united The weight of meter is a, then the frequency in occurrence frequency=(1-a) * occurrence frequency+a* " statistical data in current statistic period ". (it should be noted that also needing to carry out certain conversion if the statistical time of measurement period and occurrence frequency mismatches).So Afterwards, this statistics initial time of " statistical data in current statistic period " is set as current time, frequency is set as 0.
For example, the measurement period set is 10s, terminal and base station have 5 Connection Releases to operate in 10s, then for every Connection Release counts current statistic cycle data according to 4 form of table, wherein frequency is to be tied according to each statistics The accumulative frequency of fruit.
S102, base station are terminal Configuration network parameter according to the business associated ancillary information of acquisition.
When it is implemented, above-mentioned network parameter can be, but not limited to include DRX(discontinuous reception) parameter and Connection Release Timer(timer), wherein DRX(discontinuous reception) parameter includes drx-InactivityTimer, OnDurationTimer, longDRX-Cycle, shortDRX-Cycle, drxShortCycleTimer.
When it is implemented, the setting of longDRX-Cycle should usually meet for longDRX-Cycle parameter (if there is multiple business, then service delay requires that delay requirement should be taken most harsh longDRX-Cycle < service delay requirement Service delay requirement).But it can be with Exception handling for third type information and the 4th type information.
Preferably, configuration longDRX-Cycle parameter can be carried out in the following way: requiring to believe according to service delay Breath configures the longDRX-Cycle parameter less than service delay requirement；If including multiple service delay require informations When, the longDRX-Cycle parameter is configured less than minimum service delay requirement；Or according to third type information, configuration The longDRX-Cycle parameter is less than the minimum value of adjacent two data packet interarrival times；If according to the 4th class Type information determine there is no downlink data packet send before without upstream data packet send, and twice in succession downlink data packet send Time interval and a upstream data packet, which are sent, is respectively less than business with the time interval of the last downlink data packet transmission later Delay requirement (though be greater than service delay requirement, be much smaller than Connection Release timer), by can standard support maximum DRX Period assignment longDRX-Cycle parameter.
When it is implemented, for drx-InactivityTimer parameter or onDurationTimer parameter, Ke Yiyi According in the burst characteristic of business, preferably, can be according to the burst characteristic of downlink business.
When it is implemented, can configure in the following way drx-InactivityTimer parameter or OnDurationTimer parameter: according to first kind information, configure drx-InactivityTimer parameter or OnDurationTimer parameter is greater than the maximum value of adjacent two data packet interarrival times, preferably, can be set Maximum of the onDurationTimer and drx-InactivityTimer slightly larger than data packet interarrival times in a burst Value；Or
According to third type information, configures drx-InactivityTimer parameter or onDurationTimer parameter is big In the fluctuation range of adjacent two data packet interarrival times, preferably, configuration onDurationTimer and drx- InactivityTimer is slightly larger than the fluctuation range of data packet interarrival times；Or
According to the 4th type information, the drx-InactivityTimer parameter or onDurationTimer ginseng are configured Number is greater than a upstream data packet and the time interval of the last downlink data packet transmission and twice in succession downlink data later The maximum value in the time interval sent is wrapped, preferably, onDurationTimer and drx- can be configured Slightly larger than one time upstream data packet of InactivityTimer sends the time sent with the last time later for downlink data packet The maximum value in transmission time interval that interval and twice in succession downlink data packet are sent；Or
According to Second Type information or the 5th type information or the 6th type information or the 7th type information, configuration Drx-InactivityTimer parameter or onDurationTimer parameter are greater than preset data packet and reach time interval, In, preset data packet reaches time interval less than longDRX-Cycle.Preferably, can be by certain data packet arrival time Interval time t(t < longDRX-Cycle) data packet in range is classified as a burst, setting onDurationTimer with Drx-InactivityTimer parameter is slightly larger than t.
When it is implemented, drxShortCycleTimer parameter can be configured in the following way, believed according to the first kind Breath, configuration drxShortCycleTimer parameter are being averaged for the interior interval of two neighboring burst arrival time of a burst group Value；Either according to Second Type information or the 5th type information or the 6th type information or the 7th type information, according to Following methods configure drxShortCycleTimer parameter: the first arrival time interval burst of setting, the first burst are arrived It is greater than preset data packet up to time interval and reaches time interval less than longDRX-Cycle；It determines between data packet arrival time Reach probability between time interval and the first arrival time interval burst every belonging to preset data packet；According to following formula Determine the quantity of the burst occurred in a longDRX-Cycle:If n > 1, configuration DrxShortCycleTimer parameter is n, in which: n indicates the quantity of the burst occurred in a longDRX-Cycle；P table Registration belongs to preset data packet according to packet interarrival times and reaches between time interval and the first arrival time interval burst Probability；t1Indicate the first arrival time interval burst.Wherein, the selection of t1 should cover most of [t, longDRX- as far as possible Cycle] value in range, but also should not be too large, in order to avoid influence packet propagation delay time, wherein when t indicates that preset data packet reaches Between be spaced.
When it is implemented, following several situations can be divided into for the configuration of shortDRX-Cycle parameter:
For first kind information, it is two neighboring in a burst group for can configuring shortDRX-Cycle parameter The average value at the arrival time interval burst；
For third type information or the 4th type information, without configuring shortDRX-Cycle parameter
It, can be with for Second Type information or the 5th type information or the 6th type information or the 7th type information Referring to above-mentioned configuration drxShortCycleTime parameter, if being configured when n > 1 to shortDRX-Cycle, and configure ShortDRX-Cycle parameter is t1。
It is main according to five type information/the of third type information/the in the embodiment of the present invention for Connection Release timer Six type informations/the 7th type information determines, is configured specifically, can be divided into following several situations:
When determining that terminal is in connected state, according to third type information, configures Connection Release timer and be greater than two neighboring number According to packet interarrival times information.Preferably, first reaching time delay, the mobile speed of terminal according to data packet for third type information Rate determines that being to maintain terminal still discharges connection in connected state, if keeping connected state, Connection Release timer be should be slightly bigger than Packet interarrival times maximum value.
When it is implemented, can also be configured according to the 5th type information or the 6th type information or the 7th type information Connection Release timer.Preferably, for the 6th type information or the 7th type information, when each arrival time interval has been determined After the occurrence frequency in section, that is, may know that if RRC Connection Release timer setting it is smaller after, Idle state to connected state turn The occurrence frequency (adding up the frequency of all packet interarrival times bigger than Connection Release timer) changed, namely Terminal keeps the time span of connected state, then may know that the signaling overheads of switching and the signaling of Idle state connected state conversion Expense, thus to select suitable RRC Connection Release timer.For the 5th type information, in the hair for obtaining the 6th type information After raw frequency, Connection Release timer can be selected by mode described in the 6th type information.
When it is implemented, business associated ancillary information can be counted by terminal or base station or MME.Its In: the business correlation that terminal can count in addition to the 6th type information and the 7th type information according to preset measurement period is auxiliary Supplementary information simultaneously reports.If terminal is counted, it can both be counted when terminal is in connected state, it can also be at terminal It is counted when Idle state.Preferably, terminal is when carrying out business associated ancillary information statistics, can for uplink service and Downlink business is counted respectively, can also be counted together without distinguishing.
Preferably, for first kind information, terminal according to the MME burst and burst group sent criteria for classifying or It is counted according to the criteria for classifying of the burst and burst group of base station broadcast, the division of the burst and burst group specifically issued Criterion can belong to a burst for data packet arrival interval in much ranges, and the road burst road is spaced in much time delay ranges Interior burst belongs to a burst group, can also be realized by terminal.Wherein, if having MME transmission, burst and burst group Criteria for classifying is carried in MME to the attach request response message or TAU(tracing section updating that terminal is sent) in message.
When it is implemented, can also be by base station statistical service associated ancillary information, if being counted by base station, base station can only It is counted when terminal is in connected state, the relevant information counted on is reported to MME in Connection Release.Specifically, base Above-mentioned business can be counted when the terminal is in connected state according to preconfigured measurement period for each terminal by standing Associated ancillary information；In Connection Release, the business correlation auxiliary of statistics is reported to MME.More preferably, base station is in Connection Release When, Connection Release timer can also be reported to MME together.
When it is implemented, base station can be directed to uplink service and downlink when carrying out the statistics of business associated ancillary information Business is counted respectively, can not also be distinguished and be counted together.
Determine that primary connection is established between first data packet of the last one data packet and connection next time below with base station For time interval, preferably, base station can once be connected according to any determination in following two mode establishes last Time interval between first data packet of a data packet and connection next time:
Mode one
Base station connected the last one (uplink/downlink, if point uplink/downlink counts) data packet according to the last time of record and arrives Up to time and the arrival time of this first (uplink/downlink, if point uplink/downlink counts) data packet of connection (under if Row data packet is exactly that base station receives the MME paging moment；It is exactly the random access that base station receives UE if upstream data packet The preamble moment), to calculate the arrival time interval of the two data packets.
Mode two
Base station, to the time interval information established, Connection Release timer value is connected, constitutes complete one according to Connection Release A terminal traffic data packet arrival time interval information (primary connection establish in the last one packet connect with next time establish in the The time interval that the time interval of one parlor=Connection Release timer+ Connection Release is established to connection).It should be noted that If pass-through mode two is counted, the last one data packet connect first data in foundation with next time in primary connection foundation The time interval of parlor can only obtain the business feature of uplink and downlink mixing, and cannot be distinguished uplink and downlink.
Specifically, being directed to different statisticals, base station can determine that primary connection establishes last in accordance with the following methods Time interval between first data packet of a data packet and connection next time: 1) being directed to uplink service, determines that last time connection is last Time interval between the arrival time of one upstream data packet and the arrival time of this first upstream data packet of connection is The time interval between first data packet of the last one data packet and connection next time is established in primary connection；2) it is directed to lower industry Business, determine last time connect last downlink data packet arrival time connect with this first downlink data packet arrival time it Between time interval be time interval that primary connection is established between first data packet of the last one data packet and connection next time； 3) it is directed to uplink and downlink mixed service, determines that last time connects arrival time of the last one data packet and connect first data with this Time interval between the arrival time of packet is that first data packet of the last one data packet and connection next time is established in primary connection Between time interval.
For uplink and downlink mixed service, base station can also determine last Connection Release timer and last Connection Release To this connection establish between the sum of time interval establish the last one data packet for primary connection and establish the with next connect Time interval between one data packet.
It should be noted that then the last one data packet is that base station is connect at random by terminal if it is upstream data packet Enter the preamble moment, if downlink data packet, then the last one data packet is that base station receives the MMEpaging moment.
When it is implemented, business associated ancillary information can also be obtained by MME, wherein MME, which can be counted voluntarily, once to be connected Connect release and the time interval information that connect foundation next time, remaining information MME can be from SGW(gateway) at acquisition.Preferably, MME can be directed to uplink service and lower industry when counting a Connection Release with the time interval information for connecting foundation next time Business is counted respectively, can also be counted together without distinguishing；SGW removes a Connection Release and connects next time in statistics It can also be counted respectively for uplink service and downlink business when connecing the other information other than the time interval information of foundation, It can also be counted together without distinguishing.
Embodiment in order to better understand the present invention establishes RRC connection procedure to the present invention below in conjunction with terminal and base station The implementing procedure for the network parameter acquisition methods that embodiment provides is illustrated, as shown in Fig. 2, RRC company is established in terminal and base station It connects, may comprise steps of:
RRC connection is established in S201, terminal and base station.
Wherein, terminal can also provide business associated ancillary information, speed relevant information (such as cell weight when connection is established Historical information is selected, the rough moving speed estimation of the velocity information or terminal idle state obtained from speed measuring modules such as GPS).
Business associated ancillary information can be supplied to NAS(Non-Access Stratum by application layer) layer or NAS layers or AS(access Layer) layer voluntarily counts.If NAS or AS layers of statistics, then no matter terminal is required to count in Idle state, connected state, and carries out more Newly.Can be counted by business or QCI when statistics, can also all business counted together.Upstream or downstream can be with Separately statistics, can also be counted together.In statistics, time delay can be obtained after obtaining certain amount sampled point CDF, or burst, burst group are divided by certain criterion, criteria for classifying can be MME in attachment or TAU dispensing terminal or Base station broadcasted by broadcast mode (configuration content can be data Inter-arrival Time and belong to a burst in much ranges, Burst of the arrival interval burst in much time delay ranges belongs to a burst group) or terminal realization.When terminal obtains again After taking certain sampled point, statistical data can be updated.Update method can be to be merged by CDF, or new statistics with it is old The weighted average of statistics.
S202, base station send initial UE message to MME.
MME statistics is for the terminal from a Connection Release to the time interval statistical information for connecting foundation next time (for example using the CDF form of similar type two, or the time interval of record several times recently).In statistics time interval, MME can The reason of to be established in conjunction with connection, for example only count because the connection that service request is initiated is established, the connection initiated by TAU is not counted It establishes, because the connection that attachment is initiated is established.In addition, MME can also ask for the business associated ancillary information for the terminal to SGW Statistics, what the statistics of SGW configured before can be MME, SGW is counted oneself, or is obtained from the there PGW.MME is to SGW rope It wants information to can be after receiving the initial UE message of base station, is also possible to specially assist to MME requested service correlation in base station After information, it can also be that MME is periodically asked for SGW or SGW periodically (or event triggering) is reported to MME.
S203, MME are established to base station feedback initial context and are requested.
It may include for the terminal when it is implemented, being established in request in MME to the initial context of base station feedback It is established from a Connection Release to connection next time and (triggers connection if it is downlink business to establish, can be calling time) Time interval statistical information, Connection Release timer information, business associated ancillary information, user subscription information etc..
It should be noted that Connection Release timer is base station maintenance, it, should when terminal interior no data transmission for a period of time Timer will be overtime, and base station just discharges UE connection.
The auxiliary information that S204, base station are provided according to MME, UE, reasonable disposition network parameter.
Wherein, network parameter includes DRX parameter (drx-InactivityTimer, onDurationTimer, longDRX- Cycle, shortDRX-Cycle, drxShortCycleTimer), Connection Release timer etc..
Specifically, for once connect establish in the last one data packet with next connect establish first data parlor Time interval, there are two types of statistical methods:
1. being arrived according to the packet that the last time of record connects the last one (uplink/downlink, if point uplink and downlink counts) data packet Up to time and the arrival time of this connection first (uplink/downlink enters share uplink and downlink statistics) data packet (under if Row packet, is exactly that base station receives the MME paging moment；If uplink packet, when being exactly the random access preamble that base station receives UE Carve), to calculate the arrival time interval of the two data packets.
2. the time interval statistical information established according to Connection Release to connection, Connection Release timer value are constituted complete (the last one packet is connect first in foundation the packet interarrival times information of one terminal traffic with next time in primary connection foundation The time interval that the time interval of a parlor=Connection Release timer+ Connection Release is established to connection).It should be noted that logical The statistics of this kind of mode is crossed, once the last one packet and the next time interval for connecting first parlor in foundation in connection foundation The business feature of uplink and downlink mixing can only be obtained, and cannot be distinguished uplink and downlink.
If business associated ancillary information is that the side UE or SGW are directly counted, without what is established with Connection Release to connection Time interval statistical information, which combines, can be obtained complete Bao Daoda Delay.
S205, base station receive terminal configuration and complete after feeding back, and send initial context foundation and complete to MME.
S206, to connected state terminal, the auxiliary information of update can be provided at any time to base station, base station can similarly count Uplink and downlink business feature during this connection of the terminal, then more new business associated ancillary information.
Statistical method is similar to the statistics of NAS or AS in step S201, and gives the information reporting in Connection Release MME, while Connection Release timer information can also be reported.It can specifically be disappeared by UECONTEXT RELEASE REQUEST Breath or UE CONTEXT RELEASE COMPLETE message are incidentally.In case of switching, then former base station is by the information by cutting It changes request and is sent to target BS.Switch if it is S1, then target BS can be supplied to by MME.
It should be noted that the embodiment of the present invention is applicable not only to single business, and it is equally applicable to multiple business The mixed service of composition.
Based on the same inventive concept, a kind of network parameter acquisition device and equipment are additionally provided in the embodiment of the present invention, by It is similar to network parameter acquisition methods in the principle that above-mentioned apparatus and equipment solve the problems, such as, therefore the implementation of above-mentioned apparatus and equipment It may refer to the implementation of method, overlaps will not be repeated.
As shown in figure 3, being the structural schematic diagram of network parameter acquisition device provided in an embodiment of the present invention, comprising:
Obtaining unit 301, for obtaining the corresponding business associated ancillary information of terminal from MME；
Parameter configuration unit 302, for being terminal Configuration network parameter according to the business associated ancillary information of acquisition.
Wherein, business associated ancillary information includes at least any one of following information or any combination: type of service Information, traffic direction information, service delay require information, service rate require information, last time connect the last one data packet Arrival time information and a Connection Release and the time interval information for connecting foundation next time；And
The associated ancillary information can also include any one of following information or any combination: first kind letter Breath, Second Type information, third type information, the 4th type information, the 5th type information, the 6th type information and the 7th type Information, wherein
The first kind information includes at least one of following information: adjacent two data packet interarrival times Phase in the average value of the burst quantity that maximum value, the duration of burst, a burst group include, a burst group The maximum value and average value, two neighboring burst group arrival time interval and data packet at adjacent two arrival time intervals burst Size information, wherein the criteria for classifying of burst and burst group is preset；
The Second Type information includes: the distributed intelligence that adjacent two data packet reaches time interval；
The third type information includes: adjacent two data packet interarrival times mean information；
When it is implemented, third type information can also include the fluctuation range of adjacent two data packet interarrival times Information.
4th type information includes at least one of following information: a upstream data packet and the last time later The time interval information that downlink data packet is sent；Or the time interval information that downlink data packet is sent twice in succession；Either The instruction information sent before the no transmission there are downlink data packet without upstream data packet；
5th type information includes: to believe by the time that reaches of the data packet of data packet arrival time interval section record Breath；
When it is implemented, the maximum number of each section record and the maximum number in time interval section can be set；
6th type information includes: for data packet arrival time interval section record, at the appointed time range Interior adjacent data packet interarrival times belong to occurrence frequency information and the last time of data packet arrival time interval section Update the temporal information of the occurrence frequency information；
7th type information includes: the statistical result and the statistical data in current statistic period of a upper measurement period, Wherein, the statistical result of a upper measurement period includes for data packet arrival time interval section record, all in a upper statistics Adjacent data packet interarrival times belong to the occurrence frequency information of data packet arrival time interval section, current statistic in phase The statistical data in period includes for data packet arrival time interval section record, adjacent data packet in the current statistical cycle Arrival time interval belongs to the frequency information of data packet arrival time interval section, the initial time in current statistic period Information.
When it is implemented, the statistical data in current statistic period can also include current statistic cycle information.
When it is implemented, network parameter acquisition device provided in an embodiment of the present invention, can also include:
Determination unit determines when specified in accordance with the following methods for being directed to any data packet interarrival times section Between in range adjacent data packet interarrival times belong to the occurrence frequency of data packet arrival time interval section: for any Data packet arrival time interval section, if the arrival time interval of current data packet and a upper data packet belongs to data packet arrival When time interval section, the arrival time of the current data packet is determined；Between determining that the last time updates the data packet arrival time The time of corresponding frequency information between septal area；Determine that this data packet interarrival times belongs to the data packet according to following formula The frequency of arrival time interval section:Number/hour；And it is determined according to following formula adjacent at the appointed time range Data packet interarrival times belong to the frequency of data packet arrival time interval section: α * f1+(1-α)*f1', in which: T is pre- If measurement period size；t1For the arrival time of current data packet；t2The data packet arrival time spacer region is updated for the last time Between corresponding frequency information time；When α is that this preset data packet interarrival times belong to data packet arrival Between interval section the corresponding weight of frequency；f1Belong to the data packet interarrival times for this data packet interarrival times The occurrence frequency in section；f1' be current record the corresponding occurrence frequency of data packet arrival time interval section.
When it is implemented, network parameter acquisition device provided in an embodiment of the present invention, can also include:
Updating unit, for updating the 7th type information in accordance with the following methods: after current statistic end cycle, needle To preset each data packet arrival time interval section, data packet arrival time interval section pair is updated according to following formula The frequency information answered: β * f2+(1-β)*f2', in which: β is that adjacent data packet interarrival times belong to this in the current statistic period The corresponding weight of frequency of data packet arrival time interval section；f2When being reached for adjacent data packet in the current statistic period Between interval belong to the frequency of data packet arrival time interval section；f2' arrived for adjacent data packet in a upper measurement period Belong to the frequency of data packet arrival time interval section up to time interval.
When it is implemented, network parameter includes DRX parameter and Connection Release timer, wherein DRX parameter includes drx- InactivityTimer, onDurationTimer, longDRX-Cycle, shortDRX-Cycle, drxShortCycleTimer。
Wherein, for longDRX-Cycle parameter, parameter configuration unit 302 can be used for being believed according to service delay requirement Breath configures the longDRX-Cycle parameter less than service delay requirement；If including multiple service delay require informations When, the longDRX-Cycle parameter is configured less than minimum service delay requirement；Or according to third type information, configuration The longDRX-Cycle parameter is less than the minimum value of adjacent two data packet interarrival times；If according to the 4th class Type information determine there is no downlink data packet send before without upstream data packet send, and twice in succession downlink data packet send Time interval and a upstream data packet, which are sent, is respectively less than business with the time interval of the last downlink data packet transmission later Delay requirement configures the longDRX-Cycle parameter by supported maximum DRX cycle.
For drx-InactivityTimer parameter or onDurationTimer parameter, parameter configuration unit 302 can For configuring the drx-InactivityTimer parameter or onDurationTimer according to the first kind information Parameter is greater than the maximum value of adjacent two data packet interarrival times；Or according to the third type information, described in configuration Drx-InactivityTimer parameter or onDurationTimer parameter are greater than adjacent two data packet interarrival times Fluctuation range；Perhaps according to the 4th type information configure the drx-InactivityTimer parameter or OnDurationTimer parameter is greater than the time interval of a upstream data packet with the last downlink data packet transmission later； Either the configuration drx-InactivityTimer parameter or onDurationTimer parameter are greater than descends line number twice in succession The time interval sent according to packet；Either according to the Second Type information or the 5th type information or the 6th type information or The 7th type information of person configures the drx-InactivityTimer parameter or onDurationTimer parameter greater than default Data packet reach time interval, the preset data packet reaches time interval less than longDRX-Cycle.
For drxShortCycleTimer parameter, parameter configuration unit 302 can be used for being believed according to the first kind Breath, configuring the drxShortCycleTimer parameter is the flat of interval of two neighboring burst arrival time in a burst group Mean value；Either believed according to the Second Type information or the 5th type information or the 6th type information or the 7th type Breath configures the drxShortCycleTimer parameter in accordance with the following methods: the first arrival time interval burst of setting, described The first arrival time interval burst is greater than preset data packet and reaches time interval less than longDRX-Cycle；Determine data packet Arrival time interval belongs to preset data packet and reaches probability between time interval and the first arrival time interval burst；It presses The quantity of the burst occurred in a longDRX-Cycle is determined according to following formula:Configuration The drxShortCycleTimer parameter is n, in which: n indicates the quantity of the burst occurred in a longDRX-Cycle； P indicate data packet interarrival times belong to preset data packet reach time interval and the first arrival time interval burst it Between probability；t1Indicate the first arrival time interval burst.
For shortDRX-Cycle parameter, parameter configuration unit 302 can be used for according to first kind information, configuration The shortDRX-Cycle parameter is the average value at interval of two neighboring burst arrival time in a burst group；Or root According to the Second Type information or the 5th type information or the 6th type information or the 7th type information, if matching when n > 1 Setting the shortDRX-Cycle parameter is the arrival time interval the first burst.
When it is implemented, for Connection Release timer, parameter configuration unit 302 is determined for the terminal and is in When connected state, according to the third type information, the Connection Release timer is configured greater than adjacent two data packet arrival time Interval information；The connection is either configured according to the 5th type information or the 6th type information or the 7th type information Discharge timer.
When it is implemented, network parameter acquisition device provided in an embodiment of the present invention, can also include:
Statistic unit, for being in connected state in the terminal according to preconfigured measurement period for the terminal When statistical service associated ancillary information；
Reporting unit, in Connection Release, business associated ancillary information to be reported to MME.
Wherein, reporting unit can be also used in Connection Release, and Connection Release timer is reported to the MME.
Wherein, statistic unit can be distinguished in statistical service associated ancillary information for uplink service and downlink business It is counted, can not also distinguish and be counted together.
Preferably, when statistic unit can be also used for being counted for uplink service and downlink business, according to record Last time connected between the time between the arrival time of the last one data packet and the arrival time of this first data packet of connection Every the time interval for determining that primary connection is established between first data packet of the last one data packet and connection next time.
When it is implemented, when statistic unit can be also used for being counted for uplink service and downlink business, in determination Connection Release timer and last Connection Release are built to the sum of the time interval between this connection foundation for primary connection It founds the last one data packet and the time interval between first data packet is established in connection next time.
For convenience of description, above each section is divided by function describes respectively for each module (or unit).Certainly, exist Implement to realize the function of each module (or unit) in same or multiple softwares or hardware when the present invention.
It should be noted that above-mentioned network parameter acquisition device can be set in base station equipment.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more, The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces The form of product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic Property concept, then additional changes and modifications can be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to include these modifications and variations.

Claims (45)

1. a kind of network parameter acquisition methods characterized by comprising
Base station obtains the corresponding business associated ancillary information of terminal, the business correlation auxiliary letter from mobility management entity MME Breath include the 6th type information and the 6th type information include: it is for data packet arrival time interval section record, Adjacent data packet interarrival times belong to data packet arrival time interval section occurrence frequency information and it is last more The temporal information of the new occurrence frequency information；
For any data packet interarrival times section in the 6th type information, determine in accordance with the following methods at the appointed time Adjacent data packet interarrival times belong to the occurrence frequency of data packet arrival time interval section in range:
For any data packet interarrival times section, if the arrival time interval of current data packet and a upper data packet belongs to When the data packet arrival time interval section, the arrival time of the current data packet is determined；
Determine the last time for updating the corresponding frequency information of data packet arrival time interval section；
Determine that this data packet interarrival times belongs to the frequency of data packet arrival time interval section according to following formula:And
When determining that adjacent data packet interarrival times belong to data packet arrival at the appointed time range according to following formula Between interval section frequency: α * f1+(1-α)*f1', in which:
T is preset measurement period size；
t1For the arrival time of current data packet；
t2For the last time for updating the corresponding frequency information of data packet arrival time interval section；
α is corresponding for the frequency that this preset data packet interarrival times belong to data packet arrival time interval section Weight；
f1Belong to the occurrence frequency of data packet arrival time interval section for this data packet interarrival times；
f1' be current record the corresponding frequency of data packet arrival time interval section.
2. the method as described in claim 1, which is characterized in that the business associated ancillary information includes at least in following information Any one or any combination: service type information, traffic direction information, service delay require information, service rate requirement Information, last time connect arrival time information and a Connection Release and the time that connect foundation next time of the last one data packet Interval information；
The business associated ancillary information further includes any one of following information or any combination: first kind information, Two type informations, third type information, the 4th type information, the 5th type information and the 7th type information, wherein
The first kind information includes at least one of following information: the maximum of adjacent two data packet interarrival times Adjacent two in the average value of the burst quantity that value, the duration of burst, a burst group include, a burst group The maximum value and average value at interval of a burst arrival time, two neighboring burst group arrival time interval and data package size Information, wherein the criteria for classifying of burst and burst group is preset；
The Second Type information includes: adjacent two data packet interarrival times distributed intelligence；
The third type information includes adjacent two data packet interarrival times mean information；
4th type information includes at least one of following information: a upstream data packet and the last downlink later Data packet send time interval information, twice in succession downlink data packet send time interval information, if in the presence of line number The instruction information sent before being sent according to packet without upstream data packet；
5th type information includes: the arrival time information by the data packet of data packet arrival time interval section record；
7th type information includes: the statistical result and the statistical data in current statistic period of a upper measurement period, wherein The statistical result of a upper measurement period includes for the data packet arrival time interval section record, phase in a upper measurement period Adjacent data packet interarrival times belong to the occurrence frequency information of data packet arrival time interval section, the current statistic period Statistical data include for data packet arrival time interval section record, in the current statistical cycle adjacent data packet reach when Between interval belong to frequency information, the start time information in current statistic period of data packet arrival time interval section.
3. method according to claim 2, which is characterized in that the third type information further includes that adjacent two data packet arrives Up to the fluctuation range information of time interval.
4. method according to claim 2, which is characterized in that be directed to the 5th type information, preset each section The maximum number of record and the maximum number in time interval section.
5. method according to claim 2, which is characterized in that the statistics in the current statistic period in the 7th type information Data further include current statistic cycle information.
6. method according to claim 2, which is characterized in that the data package size information includes the data in measurement period The cumulative function of each data package size is distributed CDF information in packet mean size information or measurement period.
7. method according to claim 2, which is characterized in that update the 7th type information in accordance with the following methods:
After current statistic end cycle, for preset each data packet arrival time interval section, more according to following formula New corresponding occurrence frequency information of data packet arrival time interval section: β * f2+(1-β)*f2', in which:
β is the generation that adjacent data packet interarrival times belong to data packet arrival time interval section in the current statistic period The corresponding weight of number；
f2Belong to the generation of data packet arrival time interval section for adjacent data packet interarrival times in the current statistic period Frequency；
f2' it is the hair that adjacent data packet interarrival times belong to data packet arrival time interval section in a upper measurement period Raw frequency.
8. method according to claim 2, which is characterized in that further include:
The base station is the terminal Configuration network parameter according to the business associated ancillary information of acquisition.
9. method according to claim 8, which is characterized in that the network parameter includes discontinuous reception DRX parameter.
10. method as claimed in claim 9, which is characterized in that the DRX parameter includes longDRX-Cycle parameter；And
It is the terminal Configuration network parameter according to the business associated ancillary information of acquisition, specifically includes:
According to service delay require information, the longDRX-Cycle parameter is configured less than service delay requirement；If comprising multiple When the service delay require information, the longDRX-Cycle parameter is configured less than minimum service delay requirement；Or
According to third type information, the longDRX-Cycle parameter is configured less than adjacent two data packet interarrival times Minimum value；Or
It is sent before being sent there is no downlink data packet without upstream data packet if being determined according to the 4th type information, and twice in succession The time interval and upstream data packet that downlink data packet is sent send with the last downlink data packet later send when Between interval be respectively less than service delay requirement, by the supported maximum DRX cycle configuration longDRX-Cycle parameter.
11. method as claimed in claim 9, which is characterized in that the DRX parameter includes drx-InactivityTimer ginseng Several or onDurationTimer parameter；And
It is the terminal Configuration network parameter according to the business associated ancillary information of acquisition, specifically includes:
According to the first kind information, the drx-InactivityTimer parameter or onDurationTimer ginseng are configured Number is greater than the maximum value of adjacent two data packet interarrival times；Or
According to the third type information, the drx-InactivityTimer parameter or onDurationTimer ginseng are configured Number is greater than the fluctuation range of adjacent two data packet interarrival times；Or
According to the 4th type information, the drx-InactivityTimer parameter or onDurationTimer ginseng are configured Number is greater than a upstream data packet and the time interval of the last downlink data packet transmission and twice in succession downlink data later Wrap the maximum value in the time interval sent；Or
According to the Second Type information or the 5th type information or the 6th type information or the 7th type information, configuration The drx-InactivityTimer parameter or onDurationTimer parameter were greater than between preset data packet arrival time Every the preset data packet interarrival times are less than longDRX-Cycle.
12. method as claimed in claim 9, which is characterized in that the DRX parameter includes drxShortCycleTimer ginseng Number；And
It is the terminal Configuration network parameter according to the business associated ancillary information of acquisition, specifically includes:
According to the first kind information, configuring the drxShortCycleTimer parameter is adjacent two in a burst group The average value at interval of a burst arrival time；Or
According to the Second Type information or the 5th type information or the 6th type information or the 7th type information, according to Following methods configure the drxShortCycleTimer parameter:
The first arrival time interval burst is set, when the arrival time interval the first burst is greater than the arrival of preset data packet Between interval be less than longDRX-Cycle；
Determine that data packet interarrival times belong to preset data packet interarrival times and the first arrival time interval burst Between probability；
The quantity of the burst occurred in a longDRX-Cycle is determined according to following formula:
Configuring the drxShortCycleTimer parameter is n, in which:
N indicates the quantity of the burst occurred in a longDRX-Cycle；
P indicates that data packet interarrival times belong to preset data packet interarrival times and between the first burst arrival time Probability between；
t1Indicate the first arrival time interval burst.
13. method as claimed in claim 12, which is characterized in that the DRX parameter includes shortDRX-Cycle ginseng Number；And
It is the terminal Configuration network parameter according to the business associated ancillary information of acquisition, specifically includes:
According to first kind information, configuring the shortDRX-Cycle parameter is that two neighboring burst is arrived in a burst group Up to the average value of time interval；Or
According to the Second Type information or the 5th type information or the 6th type information or the 7th type information, if n When > 1, configuring the shortDRX-Cycle parameter is the arrival time interval the first burst.
14. method according to claim 8, which is characterized in that the network parameter includes Connection Release timer timer.
15. method as claimed in claim 14, which is characterized in that according to the business associated ancillary information of acquisition be the terminal Configuration network parameter, specifically includes:
When determining that the terminal is in connected state, according to the third type information, the Connection Release timer is configured greater than phase Adjacent two data packet interarrival times information；Or
The Connection Release is configured according to the 5th type information or the 6th type information or the 7th type information timer。
16. method according to claim 2, which is characterized in that the industry in addition to the 6th type information and the 7th type information The business associated ancillary information terminal is counted and is reported according to preconfigured measurement period.
17. the method described in claim 16, which is characterized in that the first kind information is the terminal according to described The criteria for classifying for the burst and burst group that MME is sent is united according to the criteria for classifying of the burst and burst group of base station broadcast Meter, the criteria for classifying carrying of the burst and burst group disappears in the attach request response that the MME is sent to the terminal In breath or tracing section updating TAU message.
18. the method described in claim 16, which is characterized in that the industry in addition to the 6th type information and the 7th type information Business associated ancillary information is that the terminal is counted and reported for uplink service and/or downlink business.
19. method according to claim 2, which is characterized in that further include:
For the terminal, according to preconfigured measurement period, base station counts the industry when the terminal is in connected state Business associated ancillary information；
The base station is reported to the MME in Connection Release, by the business associated ancillary information of statistics.
20. method as claimed in claim 19, which is characterized in that the business associated ancillary information is the base station for upper Industry business and/or downlink business are counted and are reported to the MME.
21. method as claimed in claim 20, which is characterized in that the base station is counted for uplink and downlink business When, the time that primary connection is established between first data packet of the last one data packet and connection next time is determined in accordance with the following methods Interval:
The base station connect first data packet with this according to the arrival time that the last time of record connects the last one data packet Arrival time between time interval determine that first data packet of the last one data packet and connection next time is established in primary connection Between time interval.
22. method as claimed in claim 20, which is characterized in that further include:
The base station is reported to the MME in Connection Release, by Connection Release timer.
23. method as claimed in claim 22, which is characterized in that the base station is counted for uplink and downlink business When, the time that primary connection is established between first data packet of the last one data packet and connection next time is determined in accordance with the following methods Interval:
Determine that last time Connection Release timer and last Connection Release are to the sum of the time interval between this connection foundation The last one data packet is established in primary connection and the time interval between first data packet is established in connection next time.
24. method according to claim 2, which is characterized in that the business associated ancillary information is the MME for described Terminal is obtained according to preconfigured measurement period, in which:
Connection Release is the MME according to preconfigured statistics with the time interval information for connecting foundation next time Period statistics；
Except other business associated ancillary informations of the Connection Release in addition to the time interval information for connecting foundation next time are The MME is obtained according to preconfigured measurement period from gateway SGW.
25. method as claimed in claim 24, which is characterized in that a Connection Release with connect next time foundation when Between interval information be that the MME is counted for uplink and/or downlink business；And except a Connection Release with connect next time Connecing other business associated ancillary informations other than the time interval information of foundation is the SGW for uplink service and/or downlink Business is counted.
26. a kind of network parameter acquisition device characterized by comprising
Obtaining unit, for obtaining the corresponding business associated ancillary information of terminal, the business phase from mobility management entity MME It includes: for data packet arrival time spacer region that auxiliary information, which is closed, including the 6th type information and the 6th type information Between record, at the appointed time adjacent data packet interarrival times belong to data packet arrival time interval section in range Occurrence frequency information and the last temporal information for updating the occurrence frequency information；
Determination unit, any data packet interarrival times section for being directed in the 6th type information, according to following Method determines that adjacent data packet interarrival times belong to data packet arrival time interval section at the appointed time range Occurrence frequency: it is directed to any data packet interarrival times section, if between current data packet and the arrival time of a upper data packet When belonging to data packet arrival time interval section, the arrival time of the current data packet is determined；Determine last update The time of the corresponding frequency information of data packet arrival time interval section；When determining that this data packet reaches according to following formula Between interval belong to the frequency of data packet arrival time interval section:Number/hour；And it is determined according to following formula Adjacent data packet interarrival times belong to the frequency of data packet arrival time interval section: α * f within the scope of specified time1+ (1-α)*f1', in which: T is preset measurement period size；t1For the arrival time of current data packet；t2Updating for the last time should The time of the corresponding frequency information of data packet arrival time interval section；α is between this preset data packet arrival time Every the corresponding weight of frequency for belonging to data packet arrival time interval section；f1Belong to for this data packet interarrival times The occurrence frequency of the data packet arrival time interval section；f1' be current record the data packet arrival time interval section pair The occurrence frequency answered.
27. device as claimed in claim 26, which is characterized in that the business associated ancillary information includes at least following information Any one of or any combination: service type information, traffic direction information, service delay require information, service rate are wanted Ask information, last time connect the last one data packet arrival time information and a Connection Release with connect next time foundation when Between interval information；
The business associated ancillary information further includes any one of following information or any combination: first kind information, Two type informations, third type information, the 4th type information, the 5th type information and the 7th type information, wherein
The first kind information includes at least one of following information: the maximum of adjacent two data packet interarrival times Adjacent two in the average value of the burst quantity that value, the duration of burst, a burst group include, a burst group The maximum value and average value at interval of a burst arrival time, two neighboring burst group arrival time interval and data package size Information, wherein the criteria for classifying of burst and burst group is preset；
The Second Type information includes: adjacent two data packet interarrival times distributed intelligence；
The third type information includes: adjacent two data packet interarrival times mean information；
4th type information includes at least one of following information: a upstream data packet and the last downlink later The time interval information that data packet is sent；Or the time interval information that downlink data packet is sent twice in succession；Or whether deposit The instruction information sent before downlink data packet transmission without upstream data packet；
5th type information includes: the arrival time information by the data packet of data packet arrival time interval section record；
7th type information includes: the statistical result and the statistical data in current statistic period of a upper measurement period, wherein The statistical result of a upper measurement period includes for the data packet arrival time interval section record, phase in a upper measurement period Adjacent data packet interarrival times belong to the occurrence frequency information of data packet arrival time interval section, the current statistic period Statistical data include for data packet arrival time interval section record, in the current statistical cycle adjacent data packet reach when Between interval belong to frequency information, the start time information in current statistic period of data packet arrival time interval section.
28. device as claimed in claim 27, which is characterized in that the third type information further includes adjacent two data packet The fluctuation range information at arrival time interval.
29. device as claimed in claim 27, which is characterized in that be directed to the 5th type information, preset each area Between the maximum number of maximum number and time interval section that records.
30. device as claimed in claim 27, which is characterized in that the system in the current statistic period in the 7th type information Counting further includes current statistic cycle information.
31. device as claimed in claim 27, which is characterized in that further include:
Updating unit, for updating the 7th type information in accordance with the following methods: after current statistic end cycle, for pre- If each data packet arrival time interval section, it is corresponding to update data packet arrival time interval section according to following formula Occurrence frequency information: β * f2+(1-β)*f2', in which: β is that adjacent data packet interarrival times belong to this in the current statistic period The corresponding weight of frequency of data packet arrival time interval section；f2When being reached for adjacent data packet in the current statistic period Between interval belong to the occurrence frequency of data packet arrival time interval section；f2' arrived for adjacent data packet in a upper measurement period Belong to the occurrence frequency of data packet arrival time interval section up to time interval.
32. device as claimed in claim 27, which is characterized in that further include:
Parameter configuration unit, for being the terminal Configuration network parameter according to the business associated ancillary information of acquisition.
33. device as claimed in claim 32, which is characterized in that the network parameter includes discontinuous reception DRX parameter.
34. device as claimed in claim 33, which is characterized in that the DRX parameter includes longDRX-Cycle parameter；With And
The parameter configuration unit is specifically used for that it is small to configure the longDRX-Cycle parameter according to service delay require information In service delay requirement；If when comprising multiple service delay require informations, configuring the longDRX-Cycle parameter and being less than Minimum service delay requirement；Or according to third type information, the longDRX-Cycle parameter is configured less than two neighboring The minimum value of data packet interarrival times；If determining that there is no before downlink data packet transmission according to the 4th type information No upstream data packet is sent, and downlink data packet is sent twice in succession time interval and a upstream data packet send with later The time interval that the last downlink data packet is sent is respectively less than service delay requirement, configures by supported maximum DRX cycle The longDRX-Cycle parameter.
35. device as claimed in claim 33, which is characterized in that the DRX parameter includes drx-InactivityTimer ginseng Several or onDurationTimer parameter；And
The parameter configuration unit is specifically used for configuring the drx-InactivityTimer according to the first kind information Parameter or onDurationTimer parameter are greater than the maximum value of adjacent two data packet interarrival times；Or according to institute Third type information is stated, configures the drx-InactivityTimer parameter or onDurationTimer parameter greater than adjacent The fluctuation range of two data packet interarrival times；Or according to the 4th type information, configure the drx- Under InactivityTimer parameter or onDurationTimer parameter are the last greater than a upstream data packet and later Maximum value in the time interval that row data packet is sent and the time interval that downlink data packet is sent twice in succession；Or according to institute Second Type information or the 5th type information or the 6th type information or the 7th type information are stated, the drx- is configured InactivityTimer parameter or onDurationTimer parameter are greater than preset data packet interarrival times, described pre- If data packet interarrival times be less than longDRX-Cycle.
36. device as claimed in claim 33, which is characterized in that the DRX parameter includes drxShortCycleTimer ginseng Number；And
The parameter configuration unit is specifically used for configuring the drxShortCycleTimer according to the first kind information Parameter is the average value at interval of two neighboring burst arrival time in a burst group；Or according to the Second Type information Either the 5th type information or the 6th type information or the 7th type information, in accordance with the following methods described in configuration DrxShortCycleTimer parameter: the first arrival time interval burst of setting, the arrival time interval the first burst are big It is less than longDRX-Cycle in preset data packet interarrival times；It is preset to determine that data packet interarrival times belong to Probability between data packet interarrival times and the first arrival time interval burst；One is determined according to following formula The quantity of the burst occurred in longDRX-Cycle:Described in configuration DrxShortCycleTimer parameter is n, in which: n indicates the quantity of the burst occurred in a longDRX-Cycle；P table Registration belongs between preset data packet interarrival times and the first arrival time interval burst according to packet interarrival times Probability；t1Indicate the first arrival time interval burst.
37. device as claimed in claim 36, which is characterized in that the DRX parameter includes shortDRX-Cycle parameter； And
The parameter configuration unit is specifically used for according to first kind information, and configuring the shortDRX-Cycle parameter is one The average value at interval of two neighboring burst arrival time in a burst group；Either according to the Second Type information or the 5th Type information or the 6th type information or the 7th type information, if when n > 1, configuring the shortDRX-Cycle parameter For the arrival time interval the first burst.
38. device as claimed in claim 32, which is characterized in that the network parameter includes Connection Release timer timer.
39. device as claimed in claim 38, which is characterized in that
The parameter configuration unit, according to the third type information, is matched when being specifically used for determining that the terminal is in connected state The Connection Release timer is set greater than adjacent two data packet interarrival times information；Or believed according to the 5th type Breath or the 6th type information or the 7th type information configure the Connection Release timer.
40. device as claimed in claim 27, which is characterized in that further include:
Statistic unit, for uniting according to preconfigured measurement period when the terminal is in connected state for the terminal Count the business associated ancillary information；
Reporting unit, in Connection Release, the business associated ancillary information of statistics to be reported to the MME.
41. device as claimed in claim 40, which is characterized in that the business associated ancillary information is the statistic unit needle Uplink service and/or downlink business are counted and are reported to the MME.
42. device as claimed in claim 41, which is characterized in that
The statistic unit, when being also used to be counted for uplink service and downlink business, most according to the connection of the last time of record Time interval between the arrival time of the latter data packet and the arrival time of this first data packet of connection determines primary The time interval between first data packet of the last one data packet and connection next time is established in connection.
43. device as claimed in claim 40, which is characterized in that
The reporting unit is also used in Connection Release, and Connection Release timer is reported to the MME.
44. device as claimed in claim 43, which is characterized in that
The statistic unit when being also used to be counted for uplink service and downlink business, determines last time Connection Release Timer and last Connection Release connect the sum of time interval between establishing to this and establish last number for primary connection The time interval between first data packet is established according to packet and connection next time.
45. a kind of base station equipment, which is characterized in that including device described in claim 26~44 any claim.
CN201410035808.3A 2014-01-24 2014-01-24 A kind of network parameter acquisition methods, device and equipment Active CN104811919B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201410035808.3A CN104811919B (en) 2014-01-24 2014-01-24 A kind of network parameter acquisition methods, device and equipment
PCT/CN2014/095356 WO2015109920A1 (en) 2014-01-24 2014-12-29 Network parameter acquiring method, apparatus, and device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410035808.3A CN104811919B (en) 2014-01-24 2014-01-24 A kind of network parameter acquisition methods, device and equipment

Publications (2)

Publication Number Publication Date
CN104811919A CN104811919A (en) 2015-07-29
CN104811919B true CN104811919B (en) 2019-01-08

Family

ID=53680787

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410035808.3A Active CN104811919B (en) 2014-01-24 2014-01-24 A kind of network parameter acquisition methods, device and equipment

Country Status (2)

Country Link
CN (1) CN104811919B (en)
WO (1) WO2015109920A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106550455A (en) * 2015-09-17 2017-03-29 中兴通讯股份有限公司 A kind of method and apparatus for reducing paging time delay
US10785349B2 (en) 2016-07-27 2020-09-22 Huawei Technologies Co., Ltd. Method for negotiating maximum packaging interval, apparatus, and storage medium
CN108234227B (en) 2016-12-15 2021-08-20 华为技术有限公司 Time delay measuring method and device of network node equipment and network node equipment
MX2019007074A (en) * 2016-12-16 2019-08-01 Guangdong Oppo Mobile Telecommunications Corp Ltd Discontinuous reception method and device.
CN108712773B (en) * 2018-05-04 2021-10-15 武汉虹信科技发展有限责任公司 Parameter setting method, device and base station
CN112825596A (en) * 2019-11-21 2021-05-21 大唐移动通信设备有限公司 Method, device and medium for determining discontinuous reception cycle parameter
WO2021169076A1 (en) * 2020-02-27 2021-09-02 Oppo广东移动通信有限公司 Information reporting method, information receiving method, terminal device and network device
CN113825186B (en) * 2020-06-19 2023-08-01 维沃移动通信有限公司 Control method, device and communication equipment for leaving network
CN112153726B (en) * 2020-09-28 2022-01-25 中国科学院计算技术研究所 Method for switching design of inactive state of user equipment
CN114726803B (en) * 2021-01-05 2023-06-30 大唐移动通信设备有限公司 Method, communication device, apparatus and storage medium for measuring and feeding back delay information

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101500271A (en) * 2008-02-01 2009-08-05 华为技术有限公司 Method and equipment for implementing core network equipment load balance
CN101610494A (en) * 2008-06-16 2009-12-23 华为技术有限公司 Realize method, system and the equipment of overload control or differentiated service
EP2645803A1 (en) * 2012-03-27 2013-10-02 BlackBerry Limited ENB storing RRC configuration information at another network component

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102387563B (en) * 2010-08-26 2015-05-27 华为技术有限公司 Service control method of machine type communication equipment, and related device and system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101500271A (en) * 2008-02-01 2009-08-05 华为技术有限公司 Method and equipment for implementing core network equipment load balance
CN101610494A (en) * 2008-06-16 2009-12-23 华为技术有限公司 Realize method, system and the equipment of overload control or differentiated service
EP2645803A1 (en) * 2012-03-27 2013-10-02 BlackBerry Limited ENB storing RRC configuration information at another network component

Also Published As

Publication number Publication date
CN104811919A (en) 2015-07-29
WO2015109920A1 (en) 2015-07-30

Similar Documents

Publication Publication Date Title
CN104811919B (en) A kind of network parameter acquisition methods, device and equipment
US11463978B2 (en) Network data analytics function, access and mobility function, and control method for UE analytics assistance for network automation and optimisation
CN103120004B (en) For the radio bearer of machine type communication
CN102651908B (en) Method and equipment for transmitting data
CN105745945B (en) Control the data transmission of the machine type communication in mobile communication system
CN102281502B (en) MTC block terminal paging DRX cycle parameter acquiring method and device
CN103379593B (en) A kind of terminal power saving method and terminal power saving device and network side battery saving arrangement
CN109286966A (en) Paging method, terminal, the network equipment and computer readable storage medium
CN103313312B (en) The collocation method of heterogeneous network ABS and device, system
CN107197508A (en) A kind of device sleeps method based on CSM mechanism DRX
CN102932919A (en) Method and device for resource configuration of uplink sounding reference signal (SRS)
CN110235484A (en) Being switched fast between control channel during radio resource control connects
CN102857971A (en) Method for data transmission, diverging point device, user terminal and system thereof
CN108668359A (en) A kind of paging method, paging monitor method and device and equipment
CN106332281A (en) Paging monitoring method, paging method and apparatuses
CN107969015A (en) A kind of 5G Internet of Things electric power data acquisition terminal access controlling method
CN110235485A (en) Method for message transmission, apparatus and system
CN106954258A (en) A kind of paging processing method, device and paging system
CN105120529A (en) Long-term evolutional cellular network based D2D (Device to Device) communication establishing device and method
WO2021092937A1 (en) Method, system and apparatus for determining strategy
CN106416417A (en) Node and method for establishing an inactivity timer in a wireless network
CN104038941A (en) Network capacity expansion method and network capacity expansion device
CN103313311B (en) A kind of radio resource management method, user equipment and network side
CN105682124B (en) A kind of power-economizing method based on virtual network
CN106961688A (en) The transmission method and device of a kind of beep-page message

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
EXSB Decision made by sipo to initiate substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant