CN102843694B - A kind of sending method of control information and device - Google Patents
A kind of sending method of control information and device Download PDFInfo
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- CN102843694B CN102843694B CN201110166378.5A CN201110166378A CN102843694B CN 102843694 B CN102843694 B CN 102843694B CN 201110166378 A CN201110166378 A CN 201110166378A CN 102843694 B CN102843694 B CN 102843694B
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Abstract
The invention provides the sending method of a kind of control information in physical control channel resource and device, wherein method comprises: when needs send control information to Cell Edge User on a control channel, according to the principle that the frequency resource shared by the control channel between the edge customer of neighbor cell staggers, from the control channel resource pool of system, select control channel resource distribution to described edge customer; Described control information is filled in selected control channel, sends to described edge customer.The present invention can alleviate the minizone control channel interference of edge customer, promotes the success rate that control signal receives and resolves, thus effectively improves systematic function.
Description
Technical field
The present invention relates to the control channel resource configuration technology in mobile communication system, particularly relate to sending method and the device of the control information of Cell Edge User.
Background technology
Existing system is when sending control information for user, need to be configured used control channel, concrete collocation method has two kinds: a kind of is static, and namely the running time-frequency resource at control channel place is fixing, correspondingly, receiving terminal carries out obtaining at fixing time-frequency location, another kind is dynamic, and namely the running time-frequency resource at control channel place is transformable, when changing at every turn, need to send and upgrade Indication message, so that receiving terminal is at time-frequency location receiving control message accurately.
The control channel collocation method of above-mentioned static state, for identical networking system, between neighbor cell, the position of down control channel is the same, and therefore, the method can cause the interference problem of minizone control channel, thus influential system performance.
Above-mentioned dynamic control channel collocation method, owing to completely dynamically placing control information, therefore needs to upgrade instruction and controls, so will consume certain signal resource.And along with mobile Internet application, as instant message (IM), microblogging, interactive game etc., and the needs of Internet of Things Deta bearer, can be comparatively large to the expense of control signal, thus may occur the congested of control signal.
At present, this technology of soft-frequency reuse can being adopted to business datum Radio Resource, the business datum Radio Resource difference that this technology uses by guaranteeing the edge customer of neighbor cell, neighboring interval interference on a traffic channel can be reduced.But, because current system is in the configuration of control channel, not yet consider the problem avoiding adjacent area to disturb, therefore, still can there is the interference problem of above-mentioned minizone control channel or control information place physical resource in existing system due to the unreasonable configuration of control channel, thus make systematic function influenced.
Summary of the invention
In view of this, main purpose of the present invention is the sending method and the device that provide a kind of control information, can reduce the adjacent area interference produced when control information sends.
In order to achieve the above object, the technical scheme that the present invention proposes is:
A, when needs send control information to edge customer on a control channel, according to the principle that the frequency resource shared by the control channel between the edge customer of neighbor cell staggers, from the control channel resource pool of system, select control channel resource distribution to described edge customer;
B, described control information to be filled in selected control channel, to send to described edge customer.
A dispensing device for control information, this device comprises:
Resource distribution module, for when needs send control information to edge customer on a control channel, according to the principle that the frequency resource shared by the control channel between the edge customer of neighbor cell staggers, from the control channel resource pool of system, select control channel resource distribution to described edge customer;
Information fills sending module, for described control information being filled in selected control channel, sends to described edge customer.
In sum, the sending method of the control information that the present invention proposes and device, can alleviate the interference of minizone control channel or control information place physical resource, promotes the success rate that control signal receives and resolves, thus effectively improve systematic function.
Accompanying drawing explanation
Fig. 1 is the method flow schematic diagram of the embodiment of the present invention one;
Fig. 2 is the apparatus structure schematic diagram of the embodiment of the present invention one.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, the present invention is described in further detail below in conjunction with the accompanying drawings and the specific embodiments.
Core concept of the present invention is: the frequency resource that the control channel that the edge customer of different districts is used takies is different, thus the adjacent area interference problem that when can avoid sending control signaling, the different edge customers of neighbor cell produce owing to employing same frequency resources.
Fig. 1 is the method flow schematic diagram of the embodiment of the present invention one, and as shown in Figure 1, the method mainly comprises:
Step 101, when needs send control information to edge customer on a control channel, according to the principle that the frequency resource shared by the control channel between the edge customer of neighbor cell staggers, from the control channel resource pool of system, select control channel resource distribution to described edge customer.
Here, by the principle staggered according to the frequency resource shared by the control channel between the edge customer of neighbor cell, come for Cell Edge User configuration control channel resource, effectively can avoid the interference problem on the control channel that occurs owing to using identical running time-frequency resource control information transmission between neighbor cell.
Preferably, when system adopts soft-frequency reuse, following method can be adopted to realize according to mentioned above principle configuration control channel:
According to the spendable frequency range of traffic channel resource of edge customer described under soft-frequency reuse mode, from the control channel resource pool of described system, select the resource distribution in described frequency range to described edge customer.
It should be noted that, in prior art, business datum Radio Resource can to reduce between neighbor cell interference on a traffic channel by soft-frequency reuse, here, by the configuration in conjunction with frequency resource during soft-frequency reuse, well-regulated configuration is carried out to control channel, make control information in subsequent process fill out put also regular, guarantee the control information of edge customer to be configured in the downlink physical control channel resource different from the control information of adjacent cell edge customer, so, effectively can reduce the control signal reception difficulty that edge customer causes because physical control channel disturbs mutually, thus promote the success rate of the complete parsing of signaling of Cell Edge User, therefore, the performance of community can be promoted further on the basis of soft-frequency reuse.
The concrete defining method of Cell Edge User described in the present invention is grasped by those skilled in the art, does not repeat them here.
Further, in order to improve the flexibility of system, the principle that can only stagger according to the frequency resource shared by the control channel between the edge customer of neighbor cell when adjacent area interference is larger, from the control channel resource pool of system, select control channel resource distribution to described edge customer, in other situations, existing method can be adopted to be edge customer configurating channel resource, that is, can to make to have the subframe of above-mentioned control channel and common subframe and to deposit.The specific implementation of this thought is by periodically realizing with the acyclic mode according to mentioned above principle configuration control channel resource.
Preferably, when adopting periodic implementation, step 101 can be:
When needs send control information to edge customer on a control channel, and during the cycle of the current arrival particular arrangement of specifying, according to the principle that the frequency resource shared by the control channel between the edge customer of neighbor cell staggers, from the control channel resource pool of system, select control channel resource distribution to described edge customer.
Further, the length in the cycle of described particular arrangement can according to the factor (quantity of such as edge customer of the embodiment disturbed condition counted in current certain hour, or adjacent area interference strength) adjust, that is, the density degree in cycle can adjust according to actual interference situation.In order to realize this thought, particularly, described method may further include following steps:
Network side, according to the quantity ratio of the edge customer in community in the fixed time of current statistic and central user, adjusts the cycle of described particular arrangement, and informs each user in community;
Or,
Network side, according to the adjacent area interference strength in community in the fixed time of current statistic, adjusts the cycle of described particular arrangement, and informs each user in community.
Here, described notice can be realized by high-level signaling.
In actual applications, the strategy of above-mentioned adjustment can be: when the quantity ratio of the edge customer in community and central user or adjacent area interference strength become large, the cycle of described particular arrangement diminishes, when the quantity ratio of the edge customer in community and central user or adjacent area interference strength diminish, the cycle of described particular arrangement becomes large.
Preferably, when adopting acyclic implementation, step 101 can be: when needs send control information to edge customer on a control channel, and the adjacent area interference strength of current area is when reaching predetermined threshold value, according to the principle that the frequency resource shared by the control channel between the edge customer of neighbor cell staggers, from the control channel resource pool of system, select control channel resource distribution to described edge customer.
Here, by adopting acyclic implementation, can during strong jamming, repeatedly repeat to send control information to edge customer by above-mentioned subframe continuously, improve the successful probability of signaling resolution.
Described predetermined threshold value can be arranged the requirement of interference according in practical application by those skilled in the art.
Step 102, described control information to be filled in selected control channel, and to send to described edge customer.
In this step, concrete fill method is grasped by those skilled in the art, does not repeat them here.
Fig. 2 is the apparatus structure schematic diagram corresponding with the method for embodiment one, and this device mainly comprises resource distribution module and information filling sending module as shown in Figure 2, wherein,
Resource distribution module, for when needs send control information to edge customer on a control channel, according to the principle that the frequency resource shared by the control channel between the edge customer of neighbor cell staggers, from the control channel resource pool of system, select control channel resource distribution to described edge customer.
When system adopts soft-frequency reuse, describedly to be chosen as: according to the spendable frequency range of traffic channel resource of edge customer described under soft-frequency reuse mode, from the control channel resource pool of described system, to select the resource distribution in described frequency range to described edge customer.
The condition of carrying out described configuration can be:
When needs send control information to edge customer on a control channel, and when the adjacent area interference strength of current area reaches predetermined threshold value; Or, when needs send control information to edge customer on a control channel, and during the cycle of the current arrival particular arrangement of specifying.
Described information fills sending module, for described control information being filled in selected control channel, sends to described edge customer.
Further, described device can also comprise:
Period modulation module, for the quantity ratio according to the edge customer in community in the fixed time of current statistic and central user, adjusts the cycle of described particular arrangement, and informs each user in community; Or, for according to the adjacent area interference strength in community in the fixed time of current statistic, adjust the cycle of described particular arrangement, and inform each user in community.
In sum, these are only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a sending method for control information, is characterized in that, the method comprises the following steps:
A, when needs send control information to edge customer on a control channel, according to the principle that the frequency resource shared by the control channel between the edge customer of neighbor cell staggers, from the control channel resource pool of system, select control channel resource distribution to described edge customer;
B, described control information to be filled in selected control channel, to send to described edge customer;
Wherein, the condition of carrying out described configuration in step a is: when needs send control information to edge customer on a control channel, and during the cycle of the current arrival particular arrangement of specifying, the adjustment in the cycle of described particular arrangement is carried out according to the quantity ratio of the edge customer in community and central user or adjacent area interference strength.
2. method according to claim 1, is characterized in that, when system adopts soft-frequency reuse, is chosen as described in step a:
According to the spendable frequency range of traffic channel resource of edge customer described under soft-frequency reuse mode, from the control channel resource pool of described system, select the resource distribution in described frequency range to described edge customer.
3. method according to claim 1, is characterized in that, described method comprises further:
Network side, according to the quantity ratio of the edge customer in community in the fixed time of current statistic and central user, adjusts the cycle of described particular arrangement, and informs each user in community.
4. method according to claim 1, is characterized in that, described method comprises further:
Network side, according to the adjacent area interference strength in community in the fixed time of current statistic, adjusts the cycle of described particular arrangement, and informs each user in community.
5. a dispensing device for control information, is characterized in that, this device comprises:
Resource distribution module, for when needs send control information to edge customer on a control channel, according to the principle that the frequency resource shared by the control channel between the edge customer of neighbor cell staggers, from the control channel resource pool of system, select control channel resource distribution to described edge customer; Wherein, the condition of carrying out described configuration is: when needs send control information to edge customer on a control channel, and during the cycle of the current arrival particular arrangement of specifying; The adjustment in the cycle of described particular arrangement is carried out according to the quantity ratio of the edge customer in community and central user or adjacent area interference strength;
Information fills sending module, for described control information being filled in selected control channel, sends to described edge customer.
6. device according to claim 5, is characterized in that, when system adopt soft-frequency reuse time, described in be chosen as:
According to the spendable frequency range of traffic channel resource of edge customer described under soft-frequency reuse mode, from the control channel resource pool of described system, select the resource distribution in described frequency range to described edge customer.
7. device according to claim 5, is characterized in that, described device comprises further:
Period modulation module, for the quantity ratio according to the edge customer in community in the fixed time of current statistic and central user, adjusts the cycle of described particular arrangement, and informs each user in community.
8. device according to claim 5, is characterized in that, described device comprises further:
Period modulation module, for according to the adjacent area interference strength in community in the fixed time of current statistic, adjusts the cycle of described particular arrangement, and informs each user in community.
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| CN201110166378.5A CN102843694B (en) | 2011-06-20 | 2011-06-20 | A kind of sending method of control information and device |
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| CN201110166378.5A CN102843694B (en) | 2011-06-20 | 2011-06-20 | A kind of sending method of control information and device |
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| CN102843694A CN102843694A (en) | 2012-12-26 |
| CN102843694B true CN102843694B (en) | 2016-03-30 |
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| RU2612399C1 (en) * | 2013-03-01 | 2017-03-09 | Хуавэй Текнолоджиз Ко., Лтд. | Method, plant, device and system for reducing effect of interference with control channel |
| CN111405665B (en) * | 2013-12-11 | 2023-12-12 | 北京三星通信技术研究有限公司 | Resource allocation method and device of physical downlink control channel |
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| CN1406076A (en) * | 2001-09-14 | 2003-03-26 | 上海大唐移动通信设备有限公司 | Frequency optimizing method |
| CN101365224A (en) * | 2007-08-07 | 2009-02-11 | 鼎桥通信技术有限公司 | Method and apparatus reducing interference between adjacent cells |
| CN101841819A (en) * | 2010-05-06 | 2010-09-22 | 工业和信息化部电信传输研究所 | Dispatching method for reducing interference of PDCCH of a plurality of small areas of LTE system and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2007029965A1 (en) * | 2005-09-06 | 2007-03-15 | Electronics And Telecommunications Research Institute | Method for resource partition, assignment, transmission and reception for inter-cell interference migration in downlink of ofdm cellular systems |
| KR20090085504A (en) * | 2008-02-04 | 2009-08-07 | 한국전자통신연구원 | Interferecne mitigation method in orthogonal frequency division muliple access based cellura system |
| CN101674641B (en) * | 2008-09-10 | 2012-02-08 | 中兴通讯股份有限公司 | Control method based on wireless communication system downlink inter-cell interference |
| CN101777956B (en) * | 2009-01-14 | 2012-11-14 | 普天信息技术研究院有限公司 | Method for coordinating semi-static interference |
| CN102014393B (en) * | 2010-11-22 | 2013-06-12 | 西安电子科技大学 | Frequency allocation method for multi-point coordinated transmission in cellular communication system |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1406076A (en) * | 2001-09-14 | 2003-03-26 | 上海大唐移动通信设备有限公司 | Frequency optimizing method |
| CN101365224A (en) * | 2007-08-07 | 2009-02-11 | 鼎桥通信技术有限公司 | Method and apparatus reducing interference between adjacent cells |
| CN101841819A (en) * | 2010-05-06 | 2010-09-22 | 工业和信息化部电信传输研究所 | Dispatching method for reducing interference of PDCCH of a plurality of small areas of LTE system and device |
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