CN101030812A - Method for grouping N-frequency point network - Google Patents
Method for grouping N-frequency point network Download PDFInfo
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- CN101030812A CN101030812A CNA2007100647632A CN200710064763A CN101030812A CN 101030812 A CN101030812 A CN 101030812A CN A2007100647632 A CNA2007100647632 A CN A2007100647632A CN 200710064763 A CN200710064763 A CN 200710064763A CN 101030812 A CN101030812 A CN 101030812A
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Abstract
本发明提供了一种N频点组网方法，包括以下步骤：调整辅载频的发射功率，使辅载频的发射功率小于同一小区内主载频的发射功率，若相邻小区的辅载频覆盖区域衔接，则进一步控制辅载频的覆盖范围使覆盖衔接区域的辅载频异频。上述N频点组网方法还包括：控制辅载频的发射角度，使辅载频的发射角度小于同一小区内主载频的发射角度。采用本发明，减小了业务信道的同频干扰，提升了网络的性能质量；另外，由于不同小区的辅载波频率和主载波频率可以相同，实现了全网同频，提高了频谱利用率，可有效地确保前后期网络规划的一致性，避免后期大量的网络规划与网络优化工作。
The present invention provides an N-frequency point networking method, which includes the following steps: adjusting the transmission power of the auxiliary carrier frequency, so that the transmission power of the auxiliary carrier frequency is lower than the transmission power of the main carrier frequency in the same cell, if the auxiliary carrier frequency of the adjacent cell If the frequency coverage area is connected, the coverage range of the auxiliary carrier frequency is further controlled so that the auxiliary carrier frequency covering the connection area is different in frequency. The above N-frequency point networking method also includes: controlling the emission angle of the auxiliary carrier frequency, so that the emission angle of the auxiliary carrier frequency is smaller than the emission angle of the main carrier frequency in the same cell. By adopting the present invention, the co-frequency interference of the service channel is reduced, and the performance quality of the network is improved; in addition, since the auxiliary carrier frequency and the main carrier frequency of different cells can be the same, the same frequency of the whole network is realized, and the spectrum utilization rate is improved. It can effectively ensure the consistency of network planning before and after, and avoid a lot of network planning and network optimization work in the later period.
Description
Technical field
The present invention relates to networking technology, especially a kind of TD SDMA that is applied to inserts (hereinafter to be referred as TD-SCDMA) the N frequency point networking method of system.
Background technology
The TD-SCDMA system be based on code division multiple access (hereinafter to be referred as: the CDMA) 3-G (Generation Three mobile communication system) of technology, this system be by adopting multiple key technologies such as smart antenna, joint-detection simultaneously, effectively improved the performance such as capacity, covering of system.But, in existing TD-SCDMA system, in order to guarantee all terminals in the carrier frequency coverage, comprise the terminal that is under the idle condition, can both receive descending Common Control Channel reliably, for example: broadcast channel, descending synchronous signal channel, information transmitted, generally, do not enable the downlink forming function of smart antenna in descending Common Control Channel.In this case, effective spreading factor of the broadcast channel of TD-SCDMA only is 8, the ability of anti-co-channel interference a little less than.That is to say, if the neighbor cell of TD-SCDMA system adopts the identical networking mode, its network performance, especially performance such as the measurement that is closely related with broadcast channel and descending synchronous signal channel, access, switching, all poor, be difficult to satisfy normal demand, this conclusion has obtained checking by the try net test result.
N frequency point networking mode, that is: in each sub-district, use a plurality of frequencies, wherein 1 is the dominant frequency point, and all the other are auxilliary frequency, adopts main carrier alien frequencies, auxilliary carrier wave with frequency planning mode frequently, common signal channel is limited on the main carrier frequency, reduced between the carrier frequency of common signal channel and disturbed, improved systematic function, made the terminal initial search accurately, fast, system inserts, handover success rate is significantly increased, and has solved the problem of descending Common Control Channel co-channel interference to a certain extent.But, owing to exist a plurality of sub-districts to cover under the same physical environment, and the coverage of N frequency is all identical in each sub-district, the inventor finds that when carrying out testing research in dense urban, existing N frequency point networking mode still exists bigger Traffic Channel and disturbs, systematic function and efficient have been reduced, network quality is relatively poor, need do the more network planning and network optimization work, and difficulty and workload are bigger.
Summary of the invention
Embodiment of the invention technical problem to be solved is: the N frequency point networking mode of prior art exists bigger Traffic Channel and disturbs, and network quality is relatively poor.
Based on one aspect of the present invention, a kind of N frequency point networking method that provides may further comprise the steps:
Adjust the transmitting power of assistant carrier frequency, make the transmitting power of the transmitting power of assistant carrier frequency,, then further control the coverage of assistant carrier frequency, make to cover the assistant carrier frequency alien frequencies that is connected the zone if the assistant carrier frequency overlay area of neighbor cell is connected less than main carrier frequency in the same sub-district.
Above-mentioned N frequency point networking method also comprises: the horizontal angle of coverage of control assistant carrier frequency makes the horizontal angle of coverage of the emission angle of assistant carrier frequency less than main carrier frequency in the same sub-district.
The embodiment of the invention is by the method for the transmitting power of adjustment assistant carrier frequency, make the transmitting power of the transmitting power of assistant carrier frequency less than main carrier frequency in the same sub-district, and, if the assistant carrier frequency overlay area of neighbor cell is connected, then further control the coverage of assistant carrier frequency, make and cover the assistant carrier frequency alien frequencies that is connected the zone, perhaps, emission angle by further adjustment assistant carrier frequency, make the emission angle of the emission angle of assistant carrier frequency, like this, make that the coverage of same frequency assistant carrier frequency of different base station is discontinuous less than main carrier frequency in the same sub-district, reduce the co-channel interference of Traffic Channel, promoted the performance quality of network; In addition, because the auxiliary carrier frequency rate of different districts can be identical with main carrier frequency, realized that the whole network with frequently, has improved the availability of frequency spectrum, the consistency of the phase network planning is avoided the network planning and the network optimization work in later stage before and after can guaranteeing effectively.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is the flow chart of N of the present invention frequency point networking side embodiment.
The carrier frequency covered structure schematic diagram that Fig. 2 forms for N frequency point networking method of the present invention.
Fig. 3 is an assistant carrier frequency covered structure schematic diagram in three sectors, same base station.
The carrier frequency covered structure schematic diagram that Fig. 4 forms for the another kind of N frequency point networking of the present invention method.
Embodiment
The embodiment of the invention makes the assistant carrier frequency alien frequencies of the neighboring coverage areas of neighbor cell by the transmitting power of control assistant carrier frequency.
In the N frequency point networking method of the present invention, N carrier frequency used in same sub-district, this N carrier frequency constitutes a logic district, it is main carrier frequency that a carrier frequency is arranged in each logic district, main carrier frequency is used to provide Common Control Channel, comprise broadcast channel and descending synchronous signal channel, other carrier frequency is an assistant carrier frequency, and assistant carrier frequency only provides Traffic Channel.Main carrier frequency alien frequencies mode can be L * M, and wherein, L represents bunch frequency reuse of the cluster sub-district that is made of a plurality of logic district, can be for greater than 1 integer; M represents frequency group number, can be for greater than 1 integer, and L * M represents the usable frequency sum, for example: always have 6 frequencies, that is: (L * M)=6, if bunch frequency reuse is 3, then frequency group number just is 2; If adopting bunch frequency reuse is 6, then frequency group number is 1 just, makes main carrier frequency form continuous covering.Concrete, the N frequency point networking method of one embodiment of the present of invention may further comprise the steps: the transmitting power of adjusting assistant carrier frequency, particularly, can be by the transmitting power of intelligent antenna figuration technological adjustment assistant carrier frequency, make the transmitting power of assistant carrier frequency less than the transmitting power of main carrier frequency in the same sub-district (step 1), and then make the coverage of the coverage of assistant carrier frequency less than main carrier frequency in the same sub-district.For example: a main carrier frequency and two assistant carrier frequencies are arranged in the sub-district, the largest traffic channel transmitting power that the main carrier frequency bearer service channels can be set be physics can with maximum transmission power 1/2, and the largest traffic channel transmitting power of two assistant carrier frequency bearer service channels be physics can with maximum transmission power 1/4.As shown in Figure 2, be a schematic diagram of 3 * 1 o'clock carrier frequency covered structure for main carrier frequency alien frequencies mode, wherein, f1, f2 and f3 are main carrier frequency, f4, f5 and f6 are assistant carrier frequency.Assistant carrier frequency can use identical carrier frequency in each logic district of the assistant carrier frequency of different base station, same base station.If the assistant carrier frequency overlay area of neighbor cell is connected, then further control the coverage of assistant carrier frequency in the neighbor cell, make and cover the assistant carrier frequency alien frequencies (step 2) that is connected the zone, make that the Zone switched assistant carrier frequency that also can guarantee is the alien frequencies mode between the neighbor cell of same base station, shown in 3, for these three logic district of assistant carrier frequency covered structure schematic diagram in three sectors, same base station are used identical assistant carrier frequency, but the Zone switched alien frequencies between neighbor cell.
Adjust the transmitting power of assistant carrier frequency, after making the transmitting power of transmitting power less than main carrier frequency in the same sub-district of assistant carrier frequency, that is: after the step 1, further, can also control the emission angle of assistant carrier frequency, concrete, can control the emission angle of assistant carrier frequency in the same sub-district by the intelligent antenna figuration technology, make the emission angle of the emission angle of assistant carrier frequency less than main carrier frequency in the same sub-district, particularly, the difference of the horizontal angle of coverage of main carrier frequency is good greater than 10% in the horizontal angle of coverage of assistant carrier frequency and the same sub-district.
By above-mentioned N frequency point networking method embodiment of the present invention, the same frequency assistant carrier frequency coverage that can guarantee different base station is discontinuous, assistant carrier frequency Zone switched between the neighbor cell of same base station is the alien frequencies mode also, has reduced the co-channel interference of Traffic Channel, has promoted the performance quality of network; In addition, because the auxiliary carrier frequency rate of different districts can be identical with main carrier frequency, realized that the whole network with frequently, has improved the availability of frequency spectrum, the consistency of the phase network planning is avoided the network planning and the network optimization work in later stage before and after can guaranteeing effectively; Guarantee the professional quality of service of terminal use; Guaranteed the uniformity of assistant carrier frequency and main carrier frequency loaded service amount.
In the system that N frequency point networking of the present invention forms, if terminal has taken place to move in using professional process, then in order to guarantee that terminal uses professional quality of service in moving process, for example: in the process that the user makes a phone call by terminal, keep the good speech quality on the terminal, avoid call drop to take place, very fast in the translational speed of terminal, during greater than predefined threshold speed, the base station is inserted terminal on the main carrier frequency of sub-district, place, avoids frequent generation of switching.
In addition, if terminal is in a certain assistant carrier frequency coverage when using business, then the base station can preferentially be inserted terminal on this assistant carrier frequency.Further, except considering location information of terminals, when terminal inserts, also can consider the load balancing of each carrier frequency, assistant carrier frequency and main carrier frequency loaded service amount should keep uniformity as far as possible.If terminal is in the assistant carrier frequency coverage, the base station can also further judge in this assistant carrier frequency and the sub-district, place main carrier frequency when the ratio of the traffic carrying capacity of pre-treatment whether greater than default ratio, for example: whether the two works as the telephone traffic ratio of pre-treatment greater than 25%, if greater than, then this terminal is linked on the main carrier frequency; Otherwise, this terminal is linked on this assistant carrier frequency.Particularly, the base station can (hereinafter to be referred as the UpPCH) power of the uplink synchronous code of Fa Songing, judge whether this terminal is in the assistant carrier frequency coverage by uplink synchronous channel by terminal.
In addition, for the terminal that initially is linked into assistant carrier frequency, the base station is the transmitting power of monitoring assistant carrier frequency carrying in real time, when the ratio of the largest traffic channel transmitting power of the transmitting power of assistant carrier frequency and the carrying of this assistant carrier frequency reaches predetermined threshold value, for example: 98% o'clock, the base station like this, has just guaranteed the quality of service on the terminal on this terminal can being moved main carrier frequency in this sub-district, assistant carrier frequency place from the assistant carrier frequency that inserts.
The useful technique effect of the embodiment of the invention:
The same frequency assistant carrier frequency coverage that has guaranteed different base station is discontinuous, and assistant carrier frequency Zone switched between the neighbor cell of same base station is the alien frequencies mode also, has reduced the co-channel interference of Traffic Channel, has promoted the performance quality of network; In addition, realized that the whole network with frequently, has improved the availability of frequency spectrum, the consistency of the phase network planning is avoided a large amount of network planning and network optimization work of later stage before and after can guaranteeing effectively.
It should be noted last that: above embodiment is only in order to illustrating technical scheme of the present invention, but not the present invention is made restrictive sense.Although the present invention is had been described in detail with reference to above-mentioned preferred embodiment, those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement technical scheme of the present invention, and this modification or be equal to the spirit and scope that replacement does not break away from technical solution of the present invention.
Claims (11)
1, a kind of N frequency point networking method is characterized in that, may further comprise the steps:
Adjust the transmitting power of assistant carrier frequency, make the transmitting power of the transmitting power of assistant carrier frequency,, then further control the coverage of assistant carrier frequency, make to cover the assistant carrier frequency alien frequencies that is connected the zone if the assistant carrier frequency overlay area of neighbor cell is connected less than main carrier frequency in the same sub-district.
2, N frequency point networking method according to claim 1 is characterized in that, main carrier frequency alien frequencies mode is L * M, and wherein, L is the integer greater than 1, and M is the integer greater than 1.
3, N frequency point networking method according to claim 1 is characterized in that, the transmitting power of adjusting assistant carrier frequency is specially: the transmitting power of controlling described assistant carrier frequency.
4, according to any described N frequency point networking method of claim 1 to 3, it is characterized in that, also comprise: the emission angle of control assistant carrier frequency makes the horizontal angle of coverage of the horizontal angle of coverage of assistant carrier frequency less than main carrier frequency in the same sub-district.
5, N frequency point networking method according to claim 4 is characterized in that, by the emission angle of intelligent antenna figuration technology control assistant carrier frequency.
6, N frequency point networking method according to claim 4, it is characterized in that the horizontal angle of coverage of assistant carrier frequency is specially less than the horizontal angle of coverage of main carrier frequency in the same sub-district: the difference of the horizontal angle of coverage of main carrier frequency is greater than 10% in the horizontal angle of coverage of assistant carrier frequency and the same sub-district.
7, according to any described N frequency point networking method of claim 1 to 6, it is characterized in that, when terminal is used business, if the translational speed of terminal greater than predefined threshold speed, then inserts described terminal the main carrier frequency of sub-district, place.
8, according to any described N frequency point networking method of claim 1 to 6, it is characterized in that, when terminal originating service request,, then described terminal is inserted described assistant carrier frequency if terminal is in the assistant carrier frequency coverage.
9, N frequency point networking method according to claim 8, it is characterized in that, when terminal is used business, if terminal is in the assistant carrier frequency coverage, further judge that then whether main carrier frequency in described assistant carrier frequency and the sub-district, place work as the ratio of traffic carrying capacity of pre-treatment greater than default ratio, if greater than, then described terminal is inserted described main carrier frequency; Otherwise, described terminal is inserted described assistant carrier frequency.
10, according to Claim 8 or 9 described N frequency point networking methods, it is characterized in that the power of the uplink synchronous code that sends by uplink synchronous channel according to terminal judges whether described terminal is in the assistant carrier frequency coverage.
11, according to Claim 8 or 9 described N frequency point networking methods, it is characterized in that, after described terminal inserted described assistant carrier frequency, if the ratio of the largest traffic channel transmitting power of the transmitting power of described assistant carrier frequency and this assistant carrier frequency reaches predetermined threshold value, then described terminal is inserted the main carrier frequency in the sub-district, described assistant carrier frequency place.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102036357A (en) * | 2009-08-14 | 2011-04-27 | 华为技术有限公司 | Method for realizing common carrier wave of multiple input multiple output (MIMO) and high speed downlink packet access (HSDPA) and power control equipment |
| CN102223642A (en) * | 2010-04-15 | 2011-10-19 | 电信科学技术研究院 | Frequency planning method and apparatus for multicarrier system |
| CN102238680A (en) * | 2010-05-07 | 2011-11-09 | 华为技术有限公司 | Heterogeneous network switching control method, signal transmission method, equipment and communication system |
| CN101815300B (en) * | 2009-02-24 | 2012-09-05 | 大唐移动通信设备有限公司 | Cell frequency assignment method and device in TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) system |
| CN101651523B (en) * | 2008-08-11 | 2013-04-24 | 华为技术有限公司 | Method and device for transmitting feedback control information in multi-carrier mode |
| CN103648121A (en) * | 2013-12-26 | 2014-03-19 | 中国电子科技集团公司第四十一研究所 | Method for signal detection of mobile terminal and monitoring of terminal equipment and device |
| CN105744534A (en) * | 2016-01-20 | 2016-07-06 | 任柏松 | FDD-LTE different-frequency networking method based on frequency migration |
-
2007
- 2007-03-26 CN CNB2007100647632A patent/CN100547952C/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101651523B (en) * | 2008-08-11 | 2013-04-24 | 华为技术有限公司 | Method and device for transmitting feedback control information in multi-carrier mode |
| CN101815300B (en) * | 2009-02-24 | 2012-09-05 | 大唐移动通信设备有限公司 | Cell frequency assignment method and device in TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) system |
| CN102036357A (en) * | 2009-08-14 | 2011-04-27 | 华为技术有限公司 | Method for realizing common carrier wave of multiple input multiple output (MIMO) and high speed downlink packet access (HSDPA) and power control equipment |
| CN102223642A (en) * | 2010-04-15 | 2011-10-19 | 电信科学技术研究院 | Frequency planning method and apparatus for multicarrier system |
| CN102223642B (en) * | 2010-04-15 | 2015-05-20 | 电信科学技术研究院 | Frequency planning method and apparatus for multicarrier system |
| CN102238680A (en) * | 2010-05-07 | 2011-11-09 | 华为技术有限公司 | Heterogeneous network switching control method, signal transmission method, equipment and communication system |
| CN102238680B (en) * | 2010-05-07 | 2013-12-04 | 华为技术有限公司 | Heterogeneous network switching control method, signal transmission method, equipment and communication system |
| CN103648121A (en) * | 2013-12-26 | 2014-03-19 | 中国电子科技集团公司第四十一研究所 | Method for signal detection of mobile terminal and monitoring of terminal equipment and device |
| CN105744534A (en) * | 2016-01-20 | 2016-07-06 | 任柏松 | FDD-LTE different-frequency networking method based on frequency migration |
| CN105744534B (en) * | 2016-01-20 | 2020-03-24 | 任柏松 | FDD-LTE pilot frequency networking method based on frequency migration |
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| CN100547952C (en) | 2009-10-07 |
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