CN1863392A - Method for implementing service of wireless communication system - Google Patents
Method for implementing service of wireless communication system Download PDFInfo
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- CN1863392A CN1863392A CNA2006100013929A CN200610001392A CN1863392A CN 1863392 A CN1863392 A CN 1863392A CN A2006100013929 A CNA2006100013929 A CN A2006100013929A CN 200610001392 A CN200610001392 A CN 200610001392A CN 1863392 A CN1863392 A CN 1863392A
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Abstract
This invention discloses a method for realizing service in the radio communication system including: configuring carrier frequencies of different bands in a same local area to form a multi-band area and configuring carriers of different bands in different sub-areas of said-multi-band and configuring the broadcast channel in one of the sub-areas, when the multi-band area receives call services of the mobile station, a network side distributes the service channels of different bands in said multi-band area for the mobile station to provide service for it, in which, said area includes multiple sub-areas including part of carrier frequencies in said multi-band area.
Description
Technical field
The present invention relates to the wireless network communication technique field, relate in particular to a kind of wireless communication system and realize professional method.
Background technology
In wireless communication field, same system can use a plurality of frequency ranges that radio communication service is provided.For example, in GSM (Global System for Mobile communications, global system for mobile communications) communication system, the frequency range of use comprises 850M, 900M, 1800M, 1900M.
Common networking mode has, single frequency network and dual-frequency network.
Single frequency network is exactly the independent networking of each frequency range.
Dual-frequency network adopts two kinds of common networkings of different frequency ranges exactly.Two different frequency ranges are assigned in the different districts, and the carrier frequency of similar frequency bands is used in same sub-district.Independent BCCH (Broadcasting Control Channel, broadcast channel) frequency is used in each sub-district.As 900M/1800M dual-frequency network, 850M/1900M dual-frequency network or 900M/1900M dual-frequency network.Because the carrier frequency of colocation site different frequency range need be configured to different districts, so there is following shortcoming in the technical scheme of present dual-frequency network:
1, the number of cells under base station is more, and BCCH frequency and channel are many, so network capacity, cell capacity are limited;
2, because number of cells is many, cause the minizone switching times many, thereby increase rising of system signaling traffic;
3, because number of cells is many, whole net networking plan complexity.
Summary of the invention
In view of above-mentioned existing in prior technology problem, the purpose of this invention is to provide a kind of wireless communication system and realize professional method, a plurality of frequency ranges can be configured in the sub-district and commence business, thereby save the BCCH frequency, enlarge network capacity and cell capacity.
The objective of the invention is to be achieved through the following technical solutions:
The invention provides a kind of wireless communication system and realize professional method, comprise the steps:
A, the carrier frequency of different frequency range is configured in forms the multiband sub-district in the same sub-district, the carrier frequency of different frequency range is configured in the different sub cell in this multiband sub-district, and broadcast channel is configured in one of them sub cell;
B, after the call business of travelling carriage is received in described multiband sub-district, network side for this travelling carriage distribute the different frequency range in the described multiband sub-district Traffic Channel, provide service for it;
Described multiband sub-district comprises a plurality of sub cells, and described sub cell comprises the part carrier frequency in the described multiband sub-district.
Described step B comprises:
B 1, network side in described multiband sub-district for travelling carriage distribute the tenability that reports with the Traffic Channel of broadcast channel similar frequency bands or according to travelling carriage for its distribute corresponding frequency range Traffic Channel, provide service for it.
Travelling carriage comprises described in the step B:
Switch to the travelling carriage of described multiband sub-district from other sub-district, perhaps set up the travelling carriage of calling out in described multiband sub-district.
In gsm system, sub cell comprises described in the steps A: low-frequency range sub cell and high band sub cell.
In gsm system, broadcast channel is configured in the described low-frequency range sub cell; And described step B comprises:
B2, after the call business of travelling carriage is received in described multiband sub-district, distribute Traffic Channel in the described low-frequency range sub cell, service is provided for it.
Described step B also comprises:
B3, when the traffic load of described low-frequency range sub cell reaches described predetermined threshold, the call business that conforms to a predetermined condition of described low-frequency range sub cell is switched to described high band sub cell;
B4, after described switching is finished, for the call business of described switching distribute described high band sub cell Traffic Channel, service is provided.
The call business that conforms to a predetermined condition described in the step B3 is: the strongest call business of incoming level in prearranged signals level intensity scope.
The step of described in the step B3 call business being carried out hand-off process comprises:
B31, when described low-frequency range sub cell when described high band sub cell switches, in scheduled duration, hand-off process is carried out in the calling in the prearranged signals level intensity scope, and the prearranged signals level intensity scope in the next scheduled duration is greater than the prearranged signals level intensity scope in the last scheduled duration.
Prearranged signals level intensity scope in the scheduled duration described in the step B31 is determined according to step level; And the upper limit of the prearranged signals level intensity scope in each scheduled duration is identical, and the lower limit of the prearranged signals level intensity scope in adjacent two scheduled durations differs a described step level.
This method also comprises:
C, be the adjacent area of himself with described multiband cell configuration;
D, when travelling carriage is positioned at described high band sub cell, detect described adjacent area BCCH frequency signal strength signal intensity and report network side;
The described BCCH frequency signal strength signal intensity that E, network side report according to travelling carriage is predicted the service quality of described low-frequency range sub cell; F, when the service quality of described high band sub cell can not satisfy pre-provisioning request, network side switches to described low-frequency range sub cell or other adjacent area with described travelling carriage from described high band sub cell according to the service quality of described low-frequency range sub cell.
Described service quality comprises:
All can directly or indirectly reflect the measured value of the parameter of service quality in the measurement report that is reported by travelling carriage and base station, and described parameter comprises: signal strength signal intensity, the quality of reception and/or Timing Advance.
As seen from the above technical solution provided by the invention, adopt method of the present invention to have following advantage:
1, multiband can be configured in the sub-district and commence business, thereby save BCCH frequency and BCCH channel, enlarge network capacity and cell capacity;
2, the minizone switching times reduces, thereby has reduced rising of system signaling traffic, and rising of system signaling traffic is controlled easily;
3, whole net number of cells has reduced, and optimizes networking plan.
Description of drawings
Fig. 1 is the flow chart of the implementation method of the described multiband of embodiment of the invention sub-district.
Embodiment
Core concept of the present invention is: the carrier frequency of different frequency range is configured in formation multiband sub-district in the same sub-district, and this multiband sub-district comprises a plurality of sub cells, and sub cell comprises the part carrier frequency in this multiband sub-district; The carrier frequency of different frequency range is configured in the different sub cell in this multiband sub-district, and broadcast channel is configured in one of them sub cell; Network side in described multiband sub-district for travelling carriage distribute the tenability that reports with the Traffic Channel of broadcast channel similar frequency bands or according to travelling carriage for its distribute corresponding frequency range Traffic Channel, provide service for it.
The networking situation of technical solution of the present invention is described at the gsm wireless communication system below:
In gsm communication system, the frequency range of use comprises 850M, 900M, 1800M or 1900M, therefore, adopts the networking mode of multiband provided by the invention sub-district to comprise following several situation:
The multiband sub-district of forming by 850M and 900M and 1800M frequency range, perhaps, the multiband sub-district of forming by 850M and 900M and 1900M frequency range, perhaps, the multiband sub-district of forming by 900M and 1800M frequency range, the perhaps multiband sub-district of forming by 850M and 1900M frequency range, perhaps, the multiband sub-district of forming by 850M and 1800M frequency range, perhaps, the multiband sub-district of forming by 900M and 1900M frequency range, perhaps, the multiband sub-district of forming by 850M and 900M frequency range.
The multiband sub-district is divided into low-frequency range sub cell and high band sub cell, and the part sub-district that is about to the low-frequency range covering is defined as the low-frequency range sub cell, and the part sub-district that high band is covered is defined as the high band sub cell.Such as: 850M and 900M frequency range are defined as low-frequency range, 1800M or 1900M frequency range are defined as high band.Therefore, the part sub-district that 850M and 900M or 850M or 900M frequency range cover is defined as the low-frequency range sub cell, and the part sub-district that 1800M or 1900M frequency range cover is defined as the high band sub cell.
With the BCCH channel configuration in the low-frequency range sub cell.Reason is: when gsm wireless communication system medium frequency differs greatly, and propagation characteristic widely different.Under the same wireless condition, low-frequency range fading ratio high band is little, the wide coverage of low-frequency range, therefore with the BCCH channel configuration in the low-frequency range sub cell, can provide service for more travelling carriage.
This multiband networking mode provided by the invention can be configured in a plurality of frequency ranges in the sub-district, so only need dispose a BCCH frequency, with respect to prior art, has saved the BCCH frequency, thereby can enlarge network capacity.
In addition,,,, saved the BCCH channel, can be the TCH channel therefore, thereby can improve cell capacity the BCCH channel switch of saving with respect to prior art so only need dispose a BCCH channel because a plurality of frequency ranges can be configured in the sub-district.
Provide the process of service to be described in detail to multiband provided by the invention sub-district below.
As shown in Figure 1, multiband provided by the invention sub-district provides the process of service may further comprise the steps:
Step 11: the call business request of travelling carriage is received in the multiband sub-district.
Wherein, travelling carriage comprises: set up the travelling carriage of calling out in this multiband sub-district, perhaps, switch to the travelling carriage of this multiband sub-district from other sub-district.
Call business comprises: the call business of Mobile Origination or reception.
Step 12: network side provides service for travelling carriage distributes the Traffic Channel of low-frequency range sub cell.
Step 13: in communication process, when receiving the measurement report that travelling carriage and base station report, network side judges whether the traffic load of low-frequency range sub cell reaches the load thresholding, if reach the load thresholding, then execution in step 14; Otherwise, continue to provide service by the Traffic Channel of low-frequency range sub cell.
Wherein, the traffic load thresholding of low-frequency range sub cell is the percentage of its Traffic Channel operating position, can set according to actual conditions.Such as, be 60% with the traffic load threshold setting of low-frequency range sub cell, perhaps 80%.
Step 14: whether the calling of judging travelling carriage is positioned at predetermined level switching band (being prearranged signals level intensity scope), if then execution in step 15; Otherwise, continue to provide service by the Traffic Channel of low-frequency range sub cell.
Step 15: start the switching of the calling of low-frequency range sub cell, distribute the TCH channel of high band sub cell, for the travelling carriage that switches to the high band sub cell provides service to the high band sub cell.
When the high band sub cell switched, the calling that the selective reception level is the strongest switched to the high band sub cell at the low-frequency range sub cell.
The method of carrying out switching the sub-district can be in scheduled duration hand-off process to be carried out in the calling in the prearranged signals level intensity scope, and the prearranged signals level intensity scope in the next scheduled duration is greater than the prearranged signals level intensity scope in the last scheduled duration.
The invention provides a kind of substep changing method:
In time the calling that a level switches in the band is switched to the high band sub cell a step-length, and level switching band is enlarged gradually to weak by strong along with the prolongation of step-length time.Therefore along with the prolongation of time, the incoming level scope that can switch to the calling of high band sub cell is enlarged to weak gradually by strong.Level switches band to be controlled by step level.
Here the said step-length time is meant a scheduled duration, and step level is a predetermined level, can set according to the actual requirements, and be 5 seconds such as setting a step-length time, perhaps 3 seconds; Setting a step level is 5dB, perhaps 3dB.
Illustrate the substep changing method below:
If the step-length time is 5 seconds, step level is 3dBm;
The 1st step-length in the time, promptly the 1st in 5 seconds, level switch band on be limited to-47dBm, be limited to (47dBm-1* step level) down, be about to-47dBm calling of level intensity to the-50dBm scope switches to the high band sub cell;
The 2nd step-length in the time, promptly the 2nd in 5 seconds, level switch band on be limited to-47dBm, be limited to (47dBm-2* step level) down, be about to-47dBm calling of level intensity to the-53dBm scope switches to the high band sub cell;
The 3rd step-length in the time, promptly the 3rd in 5 seconds, level switch band on be limited to-47dBm, be limited to (47dBm-3* step level) down, be about to-47dBm calling of level intensity to the-56dBm scope switches to the high band sub cell.
I step-length in the time, promptly i was limited on the switch level band-47dBm in 5 seconds, was limited to (47dBm-i* step level) down, and by that analogy, the lower limit minimum value is-110dBm.
Therefore substep changing method provided by the invention is exactly: prearranged signals level intensity scope is determined according to step level; And the upper limit of the prearranged signals level intensity scope in each scheduled duration is identical, and the lower limit of the prearranged signals level intensity scope in adjacent two scheduled durations differs a described step level.
The substep changing method is according to its available service quality at the high band sub cell of level fade prediction of calling out at the low-frequency range sub cell, prediction is at first switched to the high band sub cell in the calling that the high band sub cell can access preferably service, make the low-frequency range sub cell have sufficient idle business channel to serve more travelling carriage.The method has been taken into account covering, capacity and service quality simultaneously.
Step 16: when the high band sub cell provides service for travelling carriage, network side judges whether the service quality of high band sub cell satisfies pre-provisioning request, if the service quality of high band sub cell can not satisfy pre-provisioning request, and the service quality of low-frequency range sub cell satisfies pre-provisioning request, and then execution in step 17; If the service quality of high band sub cell satisfies pre-provisioning request, then the TCH channel by the high band sub cell continues to provide service.
Step 17: travelling carriage is switched to low-frequency range sub cell or other adjacent areas from the high band sub cell, provide service for travelling carriage by low-frequency range sub cell or other adjacent areas.
When the service quality of low-frequency range sub cell satisfies pre-provisioning request, then travelling carriage is switched to the low-frequency range sub cell from the high band sub cell, provide service by the low-frequency range sub cell for travelling carriage; Otherwise, travelling carriage is switched to other adjacent areas from the high band sub cell, provide service by other adjacent areas for travelling carriage.
Service quality comprises: all can directly or indirectly reflect the measured value of the parameter of service quality in the measurement report that is reported by travelling carriage and base station, and described parameter comprises: signal strength signal intensity, the quality of reception and/or Timing Advance.
When travelling carriage is positioned at the high band sub cell of multiband sub-district, can't detect the BCCH frequency signal strength signal intensity of low-frequency range sub cell generally speaking, therefore also just can't determine the service quality that the low-frequency range sub cell can provide.
For this reason, be the adjacent area of oneself with the multiband cell configuration, like this, travelling carriage can detect adjacent area BCCH frequency signal strength signal intensity and report network side.Because the BCCH frequency is configured in the low-frequency range sub cell, therefore, measurement report can reflect the frequency signal strength signal intensity of low-frequency range sub cell.
Therefore when the high band sub cell is relatively poor to the service quality of MS, network side can be predicted the service quality of low-frequency range sub cell according to the frequency signal strength signal intensity of low-frequency range sub cell, the Target cell that determine to switch, thus judge whether to initiate switching to the low-frequency range sub cell.If when the service quality of low-frequency range sub cell satisfies pre-provisioning request, then travelling carriage is switched to the low-frequency range sub cell from the high band sub cell; Otherwise, travelling carriage is switched to other adjacent areas from the high band sub cell.
In sum, adopt technical scheme of the present invention, multiband can be configured in the sub-district and commence business, thereby save BCCH frequency and BCCH channel, enlarged network capacity and cell capacity; The minizone switching times reduces, thereby has reduced rising of system signaling traffic, and rising of system signaling traffic is controlled easily; Whole net number of cells has reduced, and optimizes networking plan.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (11)
1, a kind of wireless communication system is realized professional method, it is characterized in that, comprises the steps:
A, the carrier frequency of different frequency range is configured in forms the multiband sub-district in the same sub-district, the carrier frequency of different frequency range is configured in the different sub cell in this multiband sub-district, and broadcast channel is configured in one of them sub cell;
B, after the call business of travelling carriage is received in described multiband sub-district, network side for this travelling carriage distribute the different frequency range in the described multiband sub-district Traffic Channel, provide service for it;
Described multiband sub-district comprises a plurality of sub cells, and described sub cell comprises the part carrier frequency in the described multiband sub-district.
2, method according to claim 1 is characterized in that, described step B comprises:
B1, network side in described multiband sub-district for travelling carriage distribute the tenability that reports with the Traffic Channel of broadcast channel similar frequency bands or according to travelling carriage for its distribute corresponding frequency range Traffic Channel, provide service for it.
3, method according to claim 1 and 2 is characterized in that, travelling carriage comprises described in the step B:
Switch to the travelling carriage of described multiband sub-district from other sub-district, perhaps set up the travelling carriage of calling out in described multiband sub-district.
4, method according to claim 1 and 2 is characterized in that, in gsm system, sub cell comprises described in the steps A: low-frequency range sub cell and high band sub cell.
5, method according to claim 4 is characterized in that: broadcast channel is configured in the described low-frequency range sub cell; And described step B comprises:
B2, after the call business of travelling carriage is received in described multiband sub-district, distribute Traffic Channel in the described low-frequency range sub cell, service is provided for it.
6, method according to claim 5 is characterized in that, described step B also comprises:
B3, when the traffic load of described low-frequency range sub cell reaches described predetermined threshold, the call business that conforms to a predetermined condition of described low-frequency range sub cell is switched to described high band sub cell;
B4, after described switching is finished, for the call business of described switching distribute described high band sub cell Traffic Channel, service is provided.
7, method according to claim 6 is characterized in that, the call business that conforms to a predetermined condition described in the step B3 is: the strongest call business of incoming level in prearranged signals level intensity scope.
According to claim 6 or described method, it is characterized in that 8, the step of described in the step B3 call business being carried out hand-off process comprises:
B31, when described low-frequency range sub cell when described high band sub cell switches, in scheduled duration, hand-off process is carried out in the calling in the prearranged signals level intensity scope, and the prearranged signals level intensity scope in the next scheduled duration is greater than the prearranged signals level intensity scope in the last scheduled duration.
9, method according to claim 8 is characterized in that, the prearranged signals level intensity scope in the scheduled duration described in the step B31 is determined according to step level; And the upper limit of the prearranged signals level intensity scope in each scheduled duration is identical, and the lower limit of the prearranged signals level intensity scope in adjacent two scheduled durations differs a described step level.
10, method according to claim 5 is characterized in that, this method also comprises:
C, be the adjacent area of himself with described multiband cell configuration;
D, when travelling carriage is positioned at described high band sub cell, detect described adjacent area BCCH frequency signal strength signal intensity and report network side;
The described BCCH frequency signal strength signal intensity that E, network side report according to travelling carriage is predicted the service quality of described low-frequency range sub cell;
F, when the service quality of described high band sub cell can not satisfy pre-provisioning request, network side switches to described low-frequency range sub cell or other adjacent area with described travelling carriage from described high band sub cell according to the service quality of described low-frequency range sub cell.
11, method according to claim 10 is characterized in that, described service quality comprises:
All can directly or indirectly reflect the measured value of the parameter of service quality in the measurement report that is reported by travelling carriage and base station, and described parameter comprises: signal strength signal intensity, the quality of reception and/or Timing Advance.
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| CNB2006100013929A CN100433929C (en) | 2006-01-19 | 2006-01-19 | Method for implementing service of wireless communication system |
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| CNB2006100013929A CN100433929C (en) | 2006-01-19 | 2006-01-19 | Method for implementing service of wireless communication system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100461970C (en) * | 2006-11-30 | 2009-02-11 | 中兴通讯股份有限公司 | A rapid switching method between a number of mobile multimedia broadcasting networks |
| CN102014395A (en) * | 2010-11-24 | 2011-04-13 | 华为技术有限公司 | Sector splitting realization method and base station |
| CN101212764B (en) * | 2006-12-27 | 2011-09-28 | 大唐移动通信设备有限公司 | Frequency point allocation method and wireless network controller |
| CN102083071B (en) * | 2009-11-30 | 2013-10-30 | 中国移动通信集团江苏有限公司 | Method and device for implementing frequency multiplexing by using subcell structure |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI107506B (en) * | 1997-02-27 | 2001-08-15 | Nokia Networks Oy | A method for performing handover in a cellular radio system |
| US20050030915A1 (en) * | 2001-12-05 | 2005-02-10 | Harel Golombek | Multi-band cellular service over direct broadcasting service (dbs) network |
| CN1266862C (en) * | 2002-12-26 | 2006-07-26 | 华为技术有限公司 | Multiple frequency band subzone selecting system and method |
-
2006
- 2006-01-19 CN CNB2006100013929A patent/CN100433929C/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100461970C (en) * | 2006-11-30 | 2009-02-11 | 中兴通讯股份有限公司 | A rapid switching method between a number of mobile multimedia broadcasting networks |
| CN101212764B (en) * | 2006-12-27 | 2011-09-28 | 大唐移动通信设备有限公司 | Frequency point allocation method and wireless network controller |
| CN102083071B (en) * | 2009-11-30 | 2013-10-30 | 中国移动通信集团江苏有限公司 | Method and device for implementing frequency multiplexing by using subcell structure |
| CN102014395A (en) * | 2010-11-24 | 2011-04-13 | 华为技术有限公司 | Sector splitting realization method and base station |
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