CN101600226B - Self-adaptation adjustment method of load balancing information interaction periodicity - Google Patents
Self-adaptation adjustment method of load balancing information interaction periodicity Download PDFInfo
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- CN101600226B CN101600226B CN2009100232440A CN200910023244A CN101600226B CN 101600226 B CN101600226 B CN 101600226B CN 2009100232440 A CN2009100232440 A CN 2009100232440A CN 200910023244 A CN200910023244 A CN 200910023244A CN 101600226 B CN101600226 B CN 101600226B
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Abstract
The invention discloses a self-adaptation adjustment method of load information sending periodicity, mainly solving the problems of load information delay caused by adopting a fixed periodicity for load information interaction and unnecessary overhead of signalling in an LTE-Advanced system. The invention proposes that an adjacent base station and a source base station negotiate to self-adaptively adjust resource status update sending periodicity, including the following specific steps: 1, the source base station sends a resource status request to the adjacent base station, and the adjacent base station returns a respond according to self capacity and returns load information in a fixed periodicity; 2, the adjacent base station proposes a periodicity reconfiguration request of resource status update return periodicity according to self load variation rate; 3, the source base station returns a respond according to self condition; 4, the adjacent base station returns resource status update in a new periodicity; 5, the source base station sends a resource status report stop message, and the adjacent base station returns a respond and finishes resource status report. The invention has the advantages of high load balancing successful rate and saved radio resource and is used for load information interaction in load balancing.
Description
Technical field
The present invention relates to the mobile communication technology field, relate to the global continent Radio Access Network after the evolution, particularly a kind of load information sends the self adaptation adjustment mechanism in cycle, is used for the mutual of mobility load balancing process load information.
Background technology
In the modern cell mobile communication systems,,, will produce Hot Spot in some public places because the number of mobile users purpose sharply increases.Big, new blocking rate and the switch call drop rate of calling out of these Hot Spot service traffics is very high, and less at the flow of non-Hot Spot, can cause the load distribution of whole system unbalanced like this, and wireless resource utility efficiency is very low.At this moment can a part of flow of Hot Spot be transferred in the lighter sub-district of load, realize the load balancing of system, improve the wireless resource utility efficiency of whole system.
In the prior LTE system technical scheme, with reference to Fig. 1, the flow process that load balancing realizes is following:
1. source base station sends resource status request message RESOURCE STATUSREQUEAST to adjacent base station.
2. after adjacent base station receives resource status request message RESOURCE STATUS REQUEAST; If can provide source base station required load information; Then return resource status request-reply information RESOURCE STATUS RESPONSE to source base station; Otherwise, return resource status request failure information RESOURCE STATUS FAILURE; After source base station is received RESOURCE STATUS RESPONSE information; Resource status report initialization is accomplished; Adjacent base station is according to the Reporting Periodicity information unit numerical value among the resource status request message RESOURCESTATUS REQUEAST; Cycle with fixing is returned resource status lastest imformation RESOURCE STATUS UPDATE, and the load condition of self is informed source base station
3. source base station carries out load balancing according to this Information Selection Target cell.
Through said process, can see that load information directly influences the selection of source base station to the load balancing Target cell.If load information is incorrect, source base station has been selected inappropriate Target cell, will influence load-balancing efficiency, will cause call drop when serious, reduces the service quality of system greatly.
In existing technical scheme; The cycle of resource status lastest imformation RESOURCE STATUSUPDATE is returned in adjacent base station; Stipulate in the Reporting Periodicity information unit in resource status request RESOURCE STATUS REQUEAST message, adjacent base station with this cycle fixing return load information.
If it is excessive that the cycle of load information is returned in adjacent base station, when adjacent base station load variations speed is big, will cause the hysteresis of load information, source base station utilizes out-of-date load information select target sub-district, causes the decline of load-balancing efficiency;
If it is too small that the cycle of load information is returned in adjacent base station, when adjacent base station load variations speed hour, will increase the expense of Signalling exchange, the waste Radio Resource causes the decline of wireless resource utility efficiency.
In sum; If adjacent base station adopts fixing resource status lastest imformation RESOURCE STATUSUPDATE to send the cycle; Will cause the hysteresis of load information, reduce the efficient of load balancing or Radio Resource is caused waste, produce unnecessary signaling consumption.
Summary of the invention
Target of the present invention is the problem that exists when overcoming the above-mentioned employing fixed cycle returns resource status lastest imformation RESOURCE STATUS UPDATE; A kind of self-adapting regulation method of load balancing information interaction periodicity has been proposed; Make adjacent base station according to self load variations situation; Consult with source base station, adaptive adjustment RESOURCE STATUS UPDATE information return period is with the hysteresis that reduces load information or unnecessary signaling consumption.
Main thought of the present invention is: resource status lastest imformation RESOURCE STATUS UPDATE return period not only is provided with when source base station sends resource status solicited message RESOURCE STATUS REQUEAST, and adjacent base station also consults to adjust with source base station simultaneously.Its implementation comprises:
(1) source base station sends resource status solicited message RESOURCE STATUSREQUEAST to adjacent base station; Adjacent base station is after the request of receiving source base station; If can provide source base station required resource state information; Then return resource status request-reply information RESOURCE STATUS RESPONSE to source base station, otherwise, resource status request failure information RESOURCE STATUS FAILURE returned; After source base station is received resource status request-reply information RESOURCE STATUS RESPONSE; Resource status report initialization is accomplished; Resource status lastest imformation RESOURCE STATUS UPDATE is periodically returned according to the Reporting Periodicity information unit numerical value among the resource status solicited message RESOURCE STATUS REQUEAST in adjacent base station;
(2) adjacent base station is periodically being returned in the resource status lastest imformation process; According to self load variations speed; Whether decision need change resource status lastest imformation RESOURCE STATUS UPDATE is sent the cycle; When if the load variations rate variation surpasses the threshold value that sets; Adjustment resource status lastest imformation RESOURCE STATUS UPDATE sends the cycle, and comprises the adjustment back cycle reconfiguration request information PERIODICITY RECONFIGURATION REQUEST in new transmission cycle to the source base station transmission;
(3) source base station is according to its hardware handles ability and these s own situation of interface transmittability; Accept or refuse the request of adjacent base station; Reshuffle response message PERIODICITYRECONFIGURATION RESPOND if accept then return period, otherwise return period reconfiguration failure information PERIODICITYRECONFIGURATION FAILURE;
(4) after the adjacent base station cycle of receiving is reshuffled response message PERIODICITY RECONFIGURATIONRESPOND, utilize the new cycle to return resource status lastest imformation RESOURCE STATUSUPDATE; If cycle reconfiguration failure information PERIODICITYRECONFIGURATION FAILURE is received in adjacent base station, then keep the former transmission cycle;
(5) when source base station need stop adjacent base station report resource status; Send resource status solicited message RESOURCE STATUS REQUEAST to adjacent base station; And the registration information unit is set to " stopping "; After this information is received in adjacent base station, return resource status request-reply information RESOURCESTATUS RESPONSE, stop the resource status reporting process to source base station.
The present invention proposes adaptive adjustment resource status lastest imformation RESOURCE STATUSUPDATE and send the cycle; This cycle not only is provided with in the Reporting Periodicity information unit when source base station sends resource status solicited message RESOURCESTATUS REQUEAST; And adjacent base station can also be according to self load variations situation; Consult with source base station, adaptive adjustment load information sends the cycle, has improved the load balancing success rate; Reduced signaling consumption, greatly save radio resources.
Figure of description
Fig. 1 is the flow chart of load balancing in the existing LTE system;
Fig. 2 is the flow chart of resource status reporting process Signalling exchange of the present invention..
Embodiment
With reference to Fig. 2, mainly based on resource status report initialize process in the existing LTE-Advanced system X2 interface application layer protocol and resource status report process, its practical implementation step is following in the present invention:
(1) resource status report initialization
Step 1; Source base station sends a resource status request message RESOURCE STATUSREQUEAST to adjacent base station; In this information,, then be used for the initialization of resource status reporting process if the value of registration information unit R egistration Request is made as " beginning "; If the value of registration information unit R egistrationRequest is made as " stopping ", then is used for source base station and stops adjacent base station report resource status.
Step 2; Adjacent base station is after receiving resource status solicited message RESOURCE STATUS REQUEAST, and inspection registration information unit is if its value is " beginning "; Judge whether to provide desired information in the resource status request message; If can, then feedback resources status response message RESOURCE STATUSRESPONSE accomplishes the initialization of resource status report; Adjacent base station is according to the requirement in the resource status request message simultaneously; Resource status is measured; And, periodically return resource status lastest imformation RESOURCE STATUS UPDATE according to Reporting Periodicity information unit numerical value in the RESOURCE STATUS REQUEAST message; Otherwise a resource status request failure message of adjacent base station feedback RESOURCE STATUS FAILURE gets back to step 1.
(2) resource status update cycle self adaptation adjustment
Step 3; Adjacent base station is periodically being returned in the resource status lastest imformation process; According to self load variations speed, judge whether need to change load information and send the cycle, if when load variations speed surpasses the threshold value that sets; Then resource status lastest imformation RESOURCE STATUS UPDATE return period is adjusted: when self load variations speed becomes big, adjacent base station reduces the transmission cycle of resource status lastest imformation RESOURCESTATUS UPDATE; When self load variations speed diminishes, the transmission cycle of resource status lastest imformation RESOURCE STATUS UPDATE is strengthened in adjacent base station; Simultaneously, adjacent base station is sent to source base station and is comprised the adjustment back reconfiguration request information PERIODICITY RECONFIGURATIONREQUEST in new cycle; If when load variations speed did not surpass the threshold value that sets, the cycle when then keeping initialization was returned resource status lastest imformation RESOURCE STATUS UPDATE.
Step 4; The request of adjacent base station is accepted or refused to source base station according to hardware handles ability and these s own situation of interface transmittability, after receiving the cycle reconfiguration request; If accept, reshuffle response message PERIODICITY RECONFIGURATION RESPOND to the source base station feedback cycle; Otherwise, feedback cycle reconfiguration request failure information PERIODICITY RECONFIGURATION FAILURE, and turn back to step 3.
Step 5; Reshuffle response message PERIODICITYRECONFIGURATION RESPOND information when the adjacent base station cycle of receiving; Adjustment RESOURCE STATUS UPDATE information is sent the cycle, and returns resource status lastest imformation RESOURCE STATUS UPDATE with the new cycle.
(3) the resource status report stops
Step 6 when source base station need stop the resource status report, is sent the resource status solicited message RESOURCE STATUS REQUEAST of registration information unit for " stopping " to adjacent base station; After the resource status solicited message is received in adjacent base station, return resource status request-reply information RESOURCE STATUSRESPONSE, stop the resource status reporting process.
The term explanation:
LTE, Long Term Evolution, Long Term Evolution
Reporting Periodicity comes from 3GPP TS 36.423v8.5.0 technical documentation, can be translated into " reporting period ";
RESOURCE STATUS REQUEAST comes from 3GPP TS 36.423v8.5.0 technical documentation, can be translated into " resource status request ";
RESOURCE STATUS RESPONSE comes from 3GPP TS 36.423v8.5.0 technical documentation, can be translated into " resource status request-reply ";
RESOURCE STATUS FAILURE comes from 3GPP TS 36.423v8.5.0 technical documentation, can be translated into " resource status request failure ";
RESOURCE STATUS UPDATE comes from 3GPP TS 36.423v8.5.0 technical documentation, can be translated into " resource status renewal ";
PERIODICITY RECONFIGURATION REQUEST, the cycle reconfiguration request is used for adjacent base station and adjusts request to the source base station proposition resource status lastest imformation RESOURCE STATUS UPDATE transmission cycle, and the new transmission cycle of notification source base station;
PERIODICITY RECONFIGURATION RESPOND, the cycle reconfiguration request is replied, and after being used for source base station and receiving the resource reconfiguration request of adjacent base station according to s own situation decision, receives request-reply to adjacent base station feedback;
PERIODICITY RECONFIGURATION FAILURE, cycle reconfiguration request failure, be used for the resource reconfiguration request of source base station according to the adjacent base station of s own situation decision refusal after, reject response to adjacent base station feedback.
Claims (6)
1. the self-adapting regulation method of a load balancing information interaction periodicity comprises the steps:
(1) source base station sends resource status solicited message RESOURCE STATUS REQUEAST to adjacent base station; Registration information unit wherein is set to " beginning "; Resource status request-reply information RESOURCE STATUS RESPONSE if can provide source base station required resource state information, is then returned to source base station in adjacent base station after the request of receiving source base station; Otherwise, return resource status request failure information RESOURCE STATUS FAILURE; After source base station is received resource status request-reply information RESOURCE STATUS RESPONSE; Resource status report initialization is accomplished; Resource status lastest imformation RESOURCE STATUS UPDATE is periodically returned according to the Reporting Periodicity information unit numerical value among the resource status solicited message RESOURCE STATUS REQUEAST in adjacent base station;
(2) adjacent base station is periodically being returned in the resource status lastest imformation process; According to self load variations speed; Whether decision need change resource status lastest imformation RESOURCE STATUS UPDATE is sent the cycle; When if the load variations rate variation surpasses the threshold value that sets; Adjustment resource status lastest imformation RESOURCE STATUS UPDATE sends the cycle, and comprises the adjustment back cycle reconfiguration request information PERIODICITY RECONFIGURATION REQUEST in new transmission cycle to the source base station transmission;
(3) source base station is according to its hardware handles ability and these s own situation of interface transmittability; Accept or refuse the request of adjacent base station; Reshuffle response message PERIODICITY RECONFIGURATION RESPOND if accept then return period, otherwise return period reconfiguration failure information PERIODICITY RECONFIGURATION FAILURE;
(4) after the adjacent base station cycle of receiving is reshuffled response message PERIODICITY RECONFIGURATION RESPOND, utilize the new cycle to return resource status lastest imformation RESOURCE STATUS UPDATE; If cycle reconfiguration failure information PERIODICITY RECONFIGURATION FAILURE is received in adjacent base station, then keep the former transmission cycle;
(5) when source base station need stop adjacent base station report resource status; Send resource status solicited message RESOURCE STATUS REQUEAST to adjacent base station; And the registration information unit is set to " stopping "; After this information is received in adjacent base station, return resource status request-reply information RESOURCE STATUS RESPONSE, stop the resource status reporting process to source base station.
2. the self-adapting regulation method of load balancing information interaction periodicity according to claim 1, wherein the described resource state information of step (1) comprises hardware load indication information, S1 interface transport layer load indication information, Radio Resource state information and available physical resources block state information.
3. the self-adapting regulation method of load balancing information interaction periodicity according to claim 1; Wherein the described adjustment of step (2) RESOURCE STATUS UPDATE information is sent the cycle; Be when self load variations speed becomes big, reduce the transmission cycle of RESOURCE STATUS UPDATE information; When self load variations speed diminishes, strengthen the transmission cycle of RESOURCE STATUS UPDATE information.
4. the self-adapting regulation method of load balancing information interaction periodicity according to claim 1; Step (2) reconfiguration request information of described cycle PERIODICITY RECONFIGURATION REQUEST wherein; Be used for adjacent base station and adjust request to the source base station proposition resource status lastest imformation RESOURCE STATUS UPDATE transmission cycle, and the new transmission cycle of notification source base station.
5. the self-adapting regulation method of load balancing information interaction periodicity according to claim 1; Wherein the described cycle of step (3) is reshuffled response message PERIODICITY RECONFIGURATION RESPOND; After being used for the resource reconfiguration request of source base station, receive request-reply to adjacent base station feedback according to the adjacent base station of s own situation decision reception.
6. the self-adapting regulation method of load balancing information interaction periodicity according to claim 1; Step (3) reconfiguration failure information of described cycle PERIODICITY RECONFIGURATION FAILURE wherein; After being used for the resource reconfiguration request of source base station, reject response to adjacent base station feedback according to the adjacent base station of s own situation decision refusal.
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| CN102104930A (en) | 2010-06-12 | 2011-06-22 | 电信科学技术研究院 | Mapping method and apparatus in resource status process |
| CN102056240B (en) * | 2010-12-15 | 2013-02-27 | 新邮通信设备有限公司 | Load balancing method between cells and base station |
| CN102143587A (en) * | 2010-12-31 | 2011-08-03 | 华为技术有限公司 | Resource-allocating method and equipment |
| CN102625389B (en) | 2011-01-31 | 2015-09-30 | 华为技术有限公司 | A kind of cut-in method of mobile communications network, device and system |
| CN102833787B (en) * | 2011-06-16 | 2018-01-23 | 盐城报业科技发展有限公司 | A kind of method and system of Inter-Cell Interference Coordination |
| WO2014107872A1 (en) * | 2013-01-10 | 2014-07-17 | 富士通株式会社 | Method, device and system for reporting resource state |
| CN104427554A (en) * | 2013-08-29 | 2015-03-18 | 中兴通讯股份有限公司 | Method for cooperative multi-flow data transmission and base station |
| CN103581875B (en) * | 2013-10-31 | 2016-12-07 | 大唐移动通信设备有限公司 | Load of base station information interacting method and base station |
| CN105636117A (en) * | 2014-11-04 | 2016-06-01 | 中兴通讯股份有限公司 | Radio resource allocation method and communication node |
| CN111192443B (en) * | 2020-01-20 | 2020-10-20 | 深圳市觅拓物联信息技术有限公司 | Energy-saving warning method and warning system based on Bluetooth beacon |
| CN111897816B (en) * | 2020-07-16 | 2024-04-02 | 中国科学院上海微系统与信息技术研究所 | Interaction method of calculation information between satellites and generation method of information table applied by same |
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| CN101047933A (en) * | 2006-03-30 | 2007-10-03 | 华为技术有限公司 | Transmitting method of ICR information measuring report and ICR information collection method |
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