CN101072432A - Method for realizing load sharing for different accesstechnology networks - Google Patents
Method for realizing load sharing for different accesstechnology networks Download PDFInfo
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- CN101072432A CN101072432A CNA2006100802879A CN200610080287A CN101072432A CN 101072432 A CN101072432 A CN 101072432A CN A2006100802879 A CNA2006100802879 A CN A2006100802879A CN 200610080287 A CN200610080287 A CN 200610080287A CN 101072432 A CN101072432 A CN 101072432A
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Abstract
Being applicable to network containing multiple coexisted access networks, the method includes following steps: (1) sector of each access network broadcasts own state of network congestion (NC); (2) user device selects access network. Based on state of NC in sector of the selected access network, the method determines whether the selected access network is in state of NC; if yes, then the user device reselects another access network; if not, then selecting the access. The step (2) also includes following sub steps: (2.1), adding an information unit of congestion symbol of sector; (2.2), when new UE is unable to access the sector, which is in congestion state, node of access network for managing resources of wireless network in the sector sets the congestion symbol of the sector in broadcast message of the sector. The invention improves implementing UE access network in area covered by multiple access technique to prevent UE from accessing congested network, and optimize performance of network.
Description
Technical field
The present invention relates to third generation partner program (3GPP, The Generation PartnershipProject, hereinafter to be referred as 3GPP) next generation network of research, relate in particular to one kind of multiple access technologies and the network deposited in, the implementation method of load sharing for different accesstechnology networks.
Background technology
Following network, to be multiple access technology and the network deposited, next generation mobile networks-System Architecture Evolution (SAE as the present research of 3GPP, System Architecture Evolution) network, just support Wideband Code Division Multiple Access (WCDMA) (WCDMA, Wide Code Division Multiple Access), the access way of Long Term Evolution (LTE, Long Term Evolution), WLAN (wireless local area network) different Access Networks such as (WLAN, Wireless Local AreaNetwork).Wherein, SAE is a 3GPP wireless core network evolution items of future generation, and LTE is a 3GPP next generation wireless access network evolution items.As shown in Figure 1,, can there be the network coverage of multiple different access technologies simultaneously, in this case, considers how between different access networks, to realize the problem that load is shared with regard to needs in same place.
In the technology of existing 3GPP realizes, this mechanism there has been relevant consideration.Existing 3GPP network mainly is that the mechanism by the sub-district gravity treatment realizes, when this cell-overload, by a Signalling exchange, indicates its sub-district of inserting other or other networks.As shown in Figure 2:
At first, when the user initially inserts, need set up Radio Link and connect, subscriber equipment (UE, User Equipment is hereinafter to be referred as UE) sends " Radio Link is set up request " to access network node;
Secondly, access network node is received after " Radio Link is set up request ", find that the Radio Resource of sub-district, UE place can't satisfy the requirement of UE, to return " Radio Link is set up refusal " message, comprise " sub-district gravity treatment " message in this message, indication UE reselects new sub-district or another connecting system.
From the above, in existing implementation, the congestion state of sub-district is selected not influence of network to UE, even under the small area jam situation of certain preferred network, UE still can select this network, can only can choose in other networks by above-mentioned Signalling exchange, so just increase the burden of congested sub-district.
Summary of the invention
For solving the shortcoming in the above-mentioned prior art scheme, the present invention proposes a kind of more reasonably implementation method, promptly, UE is when selecting network, with considering the load condition of different access technologies sub-district, UE site, in the network selection process, avoid inserting congested preferred network.
Technical characterictic of the present invention is: a kind of implementation method of load sharing for different accesstechnology networks, be applied to multiple Access Network and the network deposited in, this method comprises the following steps:
Steps A: its network congestion state of the Cell Broadcast CB of each Access Network;
Step B: subscriber equipment is selected Access Network, judges according to the network congestion state of the sub-district of the Access Network of this selection whether this Access Network sub-district is congested, if then this subscriber equipment is reselected another Access Network; If not, then select to insert.
Wherein, described subscriber equipment is supported described multiple Access Network.
Wherein, steps A also comprises:
Steps A 1: each sub-district increases the information unit of a small area jam sign in its broadcast;
Steps A 2: when the sub-district is in congestion state, in the time of can't inserting new UE, the access network node of management cell radio resource in the broadcast of this sub-district with the small area jam flag set.
In addition, in step B:
UE selects an Access Network according to predefined access network selection algorithm;
UE monitors the broadcast of the sub-district of described Access Network, obtains the congestion state of this sub-district according to the congestion flag in the broadcast of described sub-district;
If the small area jam of this Access Network, then UE forecloses this Access Network and carries out network selecting again.
If this Access Network sub-district is not congested, then insert this network, the UE prompting inserts successfully, shows the network type of present use simultaneously to the user.
If there is no optional Access Network, then subscriber equipment prompting user access network failure.
In addition, above-mentioned predefined access network selection algorithm can be the priority that sets in advance, and subscriber equipment can be selected Access Network according to the priority that sets in advance, and then step B is:
Step B1:UE selects the first priority Access Network;
Step B2:UE monitors the broadcast of the sub-district of this first priority Access Network, obtains the congestion state of this sub-district according to the congestion flag in the broadcast of this sub-district;
Step B3: if the small area jam of this first priority Access Network, then UE forecloses this first priority Access Network, and selects the second priority Access Network, otherwise inserts the first priority Access Network;
Wherein, the first priority Access Network is superior to the second priority Access Network.
This first priority Access Network can be the SAE/LTE network, and this second priority Access Network can be the WCDMA network.
The present invention has improved the realization at multiple inserting technology networks overlay area UE Access Network, avoids UE to insert congested network, has optimized network performance simultaneously.
Description of drawings
Fig. 1 is a SAE network architecture schematic diagram in the prior art;
Fig. 2 is in the prior art, and the user inserts the cell re-selection mechanism flow chart of SAE network;
Fig. 3 is the network diagram that method of the present invention is used for an embodiment of many network coverages areal;
Fig. 4 is the schematic diagram of each its congestion state of Access Network Cell Broadcast CB in one embodiment of the invention;
Fig. 5 is the method flow diagram that UE selects Access Network in one embodiment of the invention.
Embodiment
Core content of the present invention is:
Insert the sub-district that has been in congestion state for fear of UE, its congestion state need be broadcasted in each sub-district, so that UE is when selecting Access Network, consider the congestion state of sub-district, judge by the broadcast of monitoring each sub-district whether the sub-district is congested, determine whether inserting, to avoid inserting congested sub-district.
Concrete steps are as follows:
1. its network congestion state of the Cell Broadcast CB of each Access Network;
2. subscriber equipment is selected Access Network, judges according to the network congestion state of the sub-district of the Access Network of this selection whether this Access Network sub-district is congested, if then this subscriber equipment is reselected another Access Network; If not, then select to insert.
According to said method of the present invention, the step of a preferable possible embodiments is as follows:
1. each sub-district increases the information unit of " small area jam sign " in its broadcast.
2. be in congestion state when the sub-district, in the time of can't inserting new UE, the access network node of being in charge of cell radio resource in the broadcast of this sub-district with " small area jam sign " set.
3.UE select the network insertion network of an optimum according to predefined algorithm (this algorithm is not within research range of the present invention);
4.UE monitor the broadcast of the sub-district of described Access Network, obtain the congestion state of this sub-district according to the congestion flag in the broadcast of described sub-district;
5., then this network is foreclosed and carry out network selecting again if UE finds that the sub-district of this Access Network is congested now; If this Access Network sub-district is not congested, then the UE prompting inserts successfully, shows the network type of present use simultaneously to the user; If there is no optional Access Network, then subscriber equipment prompting user access network failure.
Method of the present invention is applicable to the situation in an area of a plurality of network overlapped coverings, below in conjunction with drawings and the specific embodiments the present invention is described in further detail again.
Fig. 3 is that method of the present invention is applied to WCDMA net and the common schematic diagram that covers the embodiment of areal of SAE/LTE net, as shown in Figure 3, in the process of SAE networking, SAE/LTE is as a New-deployed Network one isolated island often, the WCDMA network then is large-area covering, also has the covering of WCDMA network in the place that has the SAE/LTE network coverage.
Under above-mentioned multiple network (in the present embodiment, two kinds on WCDMA net and SAE/LTE net only being arranged) coverage mode, can adopt method of the present invention to realize that internetwork load is shared, concrete steps are as follows:
1.WCDMA all broadcast the congestion state of sub-district separately with the SAE/LTE sub-district in the broadcast of its sub-district, as shown in Figure 4, concrete steps do not repeat them here as previously mentioned.
2. the UE that supports WCDMA and SAE/LTE bimodulus selects Access Network according to the congestion state message in the above-mentioned broadcast when entering multiple coverage areas, as shown in Figure 5, specifically can comprise the following steps:
201, select Access Network (this algorithm is not within research range of the present invention) according to predefined access network selection algorithm.For example: must preferentially select the SAE/LTE network if system stipulates UE, then select the WCDMA network, then UE is at first with the network of SAE/LTE network as its preferential access;
202, after the network selection success, UE obtains the cell congestion status of all SAE/LTE to be selected by cell broadcast messages, if small area jam, then UE abandons inserting by SAE/LTE, and gravity treatment enters step 201, again network selection;
If 203 sub-districts are not congested, then the UE prompting inserts successfully, shows the network type of present use simultaneously to the user;
If 204 all networks all can't insert, then UE points out access failure.
Need to prove that above embodiment only is a preferred embodiment that realizes the object of the invention, only be explanation the present invention, but not only limit to this in order to limit protection scope of the present invention.Any its network congestion state of Cell Broadcast CB by each Access Network is so that whether congested subscriber equipment can all should be contained in protection scope of the present invention by judging Access Network sub-district technical scheme of coming the selectivity access when selecting Access Network.
Claims (9)
1, a kind of implementation method of load sharing for different accesstechnology networks, be applied to multiple Access Network and the network deposited in, it is characterized in that this method comprises the following steps:
Steps A: its network congestion state of the Cell Broadcast CB of each Access Network;
Step B: subscriber equipment is selected Access Network, judges according to the network congestion state of the sub-district of the Access Network of this selection whether this Access Network sub-district is congested, if then this subscriber equipment is reselected another Access Network; If not, then select to insert.
2, the method for claim 1 is characterized in that, described steps A realizes by following step:
Steps A 1: each sub-district increases the information unit of a small area jam sign in its broadcast;
Steps A 2: when the sub-district is in congestion state, in the time of can't inserting new subscriber equipment, the access network node of management cell radio resource in the broadcast of this sub-district with the small area jam flag set.
3, method as claimed in claim 2 is characterized in that, among the described step B, subscriber equipment is monitored the broadcast of the sub-district of selected Access Network, obtains the congestion state of this sub-district according to the congestion flag in this broadcast.
4, the method for claim 1 is characterized in that, described subscriber equipment is supported described multiple Access Network.
5, the method for claim 1 is characterized in that, among the described step B, subscriber equipment is selected an Access Network according to predefined access network selection algorithm.
6, method as claimed in claim 5 is characterized in that, subscriber equipment is selected Access Network according to the priority that sets in advance, and then step B is:
Step B1: subscriber equipment is selected the first priority Access Network;
Step B2: subscriber equipment is monitored the broadcast of the sub-district of this first priority Access Network, obtains the congestion state of this sub-district according to the congestion flag in the broadcast of this sub-district;
Step B3: if the small area jam of this first priority Access Network, then subscriber equipment forecloses this first priority Access Network, and selects the second priority Access Network, otherwise inserts the first priority Access Network;
Wherein, the first priority Access Network is superior to the second priority Access Network.
7, method as claimed in claim 6 is characterized in that, the described first priority Access Network is the SAE/LTE network, and the described second priority Access Network is the WCDMA network.
8, the method for claim 1 is characterized in that, among the described step B, if this Access Network sub-district is not congested, then inserts this network, and the UE prompting inserts successfully, shows the network type of present use simultaneously to the user.
9, the method for claim 1 is characterized in that, among the described step B, and if there is no optional Access Network, then subscriber equipment prompting user access network failure.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2006100802879A CN101072432A (en) | 2006-05-12 | 2006-05-12 | Method for realizing load sharing for different accesstechnology networks |
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| CNA2006100802879A CN101072432A (en) | 2006-05-12 | 2006-05-12 | Method for realizing load sharing for different accesstechnology networks |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102123486A (en) * | 2010-01-11 | 2011-07-13 | 电信科学技术研究院 | Method, system and equipment for data sending and terminal operation |
| WO2011120218A1 (en) * | 2010-03-30 | 2011-10-06 | Huawei Technologies Co., Ltd. | Method for re-selecting a communication network |
| CN102316600A (en) * | 2010-06-29 | 2012-01-11 | 中兴通讯股份有限公司 | Method, system and terminal for randomly accessing terminal |
| WO2012159491A1 (en) * | 2011-05-24 | 2012-11-29 | 电信科学技术研究院 | Method and device for distributing paging range |
| CN102835166A (en) * | 2010-04-01 | 2012-12-19 | 高通股份有限公司 | Method and apparatus for selecting radios and mapping applications to radios on a wireless device |
| CN103974337A (en) * | 2013-01-31 | 2014-08-06 | ***通信集团公司 | Method and device for business shunting of high-load area |
| US9072077B2 (en) | 2010-04-01 | 2015-06-30 | Qualcomm Incorporated | Method and apparatus for performing fractional system selection by a wireless device |
| CN107708177A (en) * | 2016-08-09 | 2018-02-16 | 北京信威通信技术股份有限公司 | A kind of method and device of mobile terminal access |
| CN110710269A (en) * | 2017-07-31 | 2020-01-17 | 华为技术有限公司 | Communication method, communication device and system |
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- 2006-05-12 CN CNA2006100802879A patent/CN101072432A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102123486A (en) * | 2010-01-11 | 2011-07-13 | 电信科学技术研究院 | Method, system and equipment for data sending and terminal operation |
| CN102123486B (en) * | 2010-01-11 | 2014-07-09 | 电信科学技术研究院 | Method, system and equipment for data sending and terminal operation |
| WO2011120218A1 (en) * | 2010-03-30 | 2011-10-06 | Huawei Technologies Co., Ltd. | Method for re-selecting a communication network |
| US9749923B2 (en) | 2010-03-30 | 2017-08-29 | Huawei Technologies Co., Ltd. | Method for re-selecting a communication network |
| CN102835166A (en) * | 2010-04-01 | 2012-12-19 | 高通股份有限公司 | Method and apparatus for selecting radios and mapping applications to radios on a wireless device |
| US9055556B2 (en) | 2010-04-01 | 2015-06-09 | Qualcomm Incorporated | Method and apparatus for selecting radios and mapping applications to radios on a wireless device |
| US9072077B2 (en) | 2010-04-01 | 2015-06-30 | Qualcomm Incorporated | Method and apparatus for performing fractional system selection by a wireless device |
| CN102835166B (en) * | 2010-04-01 | 2016-02-24 | 高通股份有限公司 | For selecting radio on the wireless device and application program being mapped to wireless method and apparatus |
| CN102316600B (en) * | 2010-06-29 | 2016-06-15 | 中兴通讯股份有限公司 | Method, system and the terminal that a kind of terminal is randomly accessing |
| CN102316600A (en) * | 2010-06-29 | 2012-01-11 | 中兴通讯股份有限公司 | Method, system and terminal for randomly accessing terminal |
| WO2012159491A1 (en) * | 2011-05-24 | 2012-11-29 | 电信科学技术研究院 | Method and device for distributing paging range |
| CN103974337A (en) * | 2013-01-31 | 2014-08-06 | ***通信集团公司 | Method and device for business shunting of high-load area |
| CN103974337B (en) * | 2013-01-31 | 2017-11-21 | ***通信集团公司 | A kind of method and device of the service distributing of high-load region |
| CN107708177A (en) * | 2016-08-09 | 2018-02-16 | 北京信威通信技术股份有限公司 | A kind of method and device of mobile terminal access |
| CN110710269A (en) * | 2017-07-31 | 2020-01-17 | 华为技术有限公司 | Communication method, communication device and system |
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