CN101388753B - MIMO mode regulating method - Google Patents
MIMO mode regulating method Download PDFInfo
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- CN101388753B CN101388753B CN2007101538736A CN200710153873A CN101388753B CN 101388753 B CN101388753 B CN 101388753B CN 2007101538736 A CN2007101538736 A CN 2007101538736A CN 200710153873 A CN200710153873 A CN 200710153873A CN 101388753 B CN101388753 B CN 101388753B
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Abstract
The invention provides an adjusting method of a mode with multi-input and multi-output, which comprises the following steps: reading loading state information of a current system and service quality information of bearing service by a base station, judging whether to adjust the mode with multi-input and multi-output of users according to the current system loading state information which is read currently, if the mode needs to be adjusted, selecting the users to carry out the adjustment according to the service quality of the bearing service. With the technical proposal of the invention, the adjustment of the mode with multi-input and multi-output can be simply and reasonably carried out according to the characteristic that different modes with multi-input and multi-output adapt to different requirements of the service quality, the throughout of the system is improved, simultaneously, the requirements to the service quality are satisfied, and costs of the system, time delay and the complexity of calculation are reduced.
Description
Technical field
The present invention relates to a kind of communication system of supporting multiple MIMO mode, be specifically related to regulating in multiple-input in this system.
Background technology
Multiple-input and multiple-output (MIMO) system can improve systematic function under the situation that does not increase system bandwidth, resist multipath fading to a certain extent, improves data rate.The MIMO technology has become one of key technology of next generation wireless communication system; And the research of mimo system has been deep in the various modes for example single user's MIMO mode (SU-MIMO pattern) and multi-user multiple input multiple output mode (MU-MIMO pattern) at present.
Through discovering; Different MIMO patterns can show different performances in application; For example the user does not receive other users' in the same sub-district interference under the SU-MIMO pattern; Can obtain to serve preferably, still can't give full play to the effect of the spatial reuse of many antennas like this, the sub-district whole volume is limited; And in limited bandwidth, can service be provided simultaneously and can improve the upper limit of cell capacity under the MU-MIMO pattern for more user, but because introduced the interference between the user in the sub-district, so only for the user performance descend to some extent.
Existing MIMO mode adjustment is only carried out according to channel conditions or the information relevant with channel conditions; And do not consider that the different qualities that different MIMO patterns are showed can adapt to different QoS (service quality) requirement, and overhead is big, time delay is long, computation complexity is higher.
Summary of the invention
The technical problem that the present invention will solve provides a kind of regulating in multiple-input, can easyly reasonably carry out the adjustment of MIMO mode according to the characteristic of the different qos requirement of different MIMO mode adaptives.
In order to address the above problem, the invention provides a kind of regulating in multiple-input, comprising:
A reads the base station quality of service information of current system load state information and institute's bearer service;
The B base station judges whether that according to the current system load state information that reads needs adjust user's MIMO mode, is then to select the user to adjust according to the service quality of institute's bearer service.
Further, said quality of service information comprises: type of service, maximum rate, assurance speed, propagation delay time, priority, error rate.
Further; If going out the load of said current system, base station judges surpasses the set upper limit value among the said step B; Then select the user of needs adjustment according to the quality of service information of institute's bearer service; Its MIMO mode is set to multi-user multiple input multiple output mode, and all the other users still keep current pattern setting; If base station judges goes out the lower limit that the load of said current system is lower than regulation; Then select the user of needs adjustment according to the quality of service information of institute's bearer service; Its MIMO mode is set to single user's MIMO mode, and all the other users still keep current pattern setting.
Further; When the load of said current system surpassed the set upper limit value, the standard of selecting the user to carry out the MIMO mode adjustment was a kind of or combination in any in the following situation: error rate is higher than predetermined threshold value, propagation delay time and is higher than the professional pairing user that predetermined threshold value or priority are lower than predetermined threshold value;
When the load of said current system was lower than the lower limit of regulation, the standard of selecting the user to carry out the MIMO mode adjustment was a kind of or combination in any in the following situation: error rate is lower than predetermined threshold value, propagation delay time and is lower than the professional pairing user that predetermined threshold value or priority are higher than predetermined threshold value.
Further, if base station judges goes out the load of said current system to be within the prescribed limit value, then the user is not carried out the adjustment of MIMO mode among the said step B.
In sum; The invention provides a kind of regulating in multiple-input; Can easyly reasonably carry out the adjustment of MIMO mode according to the characteristic of the different qos requirement of different MIMO mode adaptives; In the throughput that improves system, take into account qos requirement, and can reduce overhead, time delay and computation complexity.
Description of drawings
Fig. 1 is a specific embodiment of the invention operational flowchart.
Embodiment
The invention provides a kind of regulating in multiple-input; Be used for supporting the intermodulation of MIMO modular system MU-MIMO pattern and SU-MIMO pattern; This method is based on the characteristic of the different qos requirement of different MIMO mode adaptives; With the load information of current system as the standard that whether need carry out mode adjustment, and with QoS (service quality) information of institute of system bearer service standard as the user who selects to carry out mode adjustment.
Present embodiment will specify the inventive method, and will be as shown in Figure 1, and its step is following:
Step 101: the QoS information of current system load state information and institute's bearer service is read in the base station;
Wherein QoS information comprises information such as type of service, maximum rate, assurance speed, propagation delay time, priority, error rate.
Step 102: the base station judges whether that according to the load state information of the current system that reads needs carry out the adjustment of MIMO pattern; Whether the load of promptly judging current system is within the prescribed limit value; Execution in step 103 then within the prescribed limit value not, otherwise execution in step 104;
Step 103: the adjustment of MIMO pattern is carried out in the base station according to the load selection user of current system:
If going out the load of said current system, base station judges surpasses the set upper limit value; Then need carry out the adjustment of SU-MIMO pattern to the MU-MIMO pattern: the base station is according to the QoS information of current institute bearer service; Among the user under these are professional; Select the user that need carry out mode adjustment; Choice criteria is a kind of or combination in any in the following situation: error rate is higher than certain predetermined threshold value, propagation delay time and is higher than the professional pairing user that certain predetermined threshold value or priority are lower than certain predetermined threshold value, and is promptly lower to the requirement of error rate, propagation delay time, the professional pairing user that priority is lower; It is set to the MU-MIMO pattern, and other users still keep current MIMO pattern setting.
If base station judges goes out the lower limit that the load of said current system is lower than regulation; Then need carry out the adjustment of MU-MIMO pattern to the SU-MIMO pattern: the base station is according to the QoS information of current institute bearer service; Among the user under these are professional; Select the user that need carry out mode adjustment; Choice criteria is a kind of or combination in any in the following situation: error rate is lower than certain predetermined threshold value, propagation delay time and is lower than the professional pairing user that certain predetermined threshold value or priority are higher than certain predetermined threshold value, promptly error rate, propagation delay time is had relatively high expectations the pairing user of higher priority business; It is set to the SU-MIMO pattern, and other users still keep current pattern setting.
Step 104: base station judges goes out system load this moment and is within the prescribed limit value, need not carry out the MIMO mode adjustment, promptly keeps the current MIMO pattern setting of all users.
Claims (3)
1. regulating in multiple-input comprises:
A reads the base station quality of service information of current system load state information and institute's bearer service;
The B base station judges whether that according to the current system load state information that reads needs adjust user's MIMO mode, is then to select the user to adjust according to the service quality of institute's bearer service;
If going out the load of said current system, base station judges surpasses the set upper limit value among the said step B; Then select the user of needs adjustment according to the quality of service information of institute's bearer service; Its MIMO mode is set to multi-user multiple input multiple output mode, and all the other users still keep current pattern setting; If base station judges goes out the lower limit that the load of said current system is lower than regulation; Then select the user of needs adjustment according to the quality of service information of institute's bearer service; Its MIMO mode is set to single user's MIMO mode, and all the other users still keep current pattern setting;
If base station judges goes out the load of said current system to be within the prescribed limit value, then the user is not carried out the adjustment of MIMO mode among the said step B.
2. the method for claim 1 is characterized in that, said quality of service information comprises: type of service, maximum rate, assurance speed, propagation delay time, priority or error rate.
3. the method for claim 1; It is characterized in that; When the load of said current system surpassed the set upper limit value, the standard of selecting the user to carry out the MIMO mode adjustment was a kind of or combination in any in the following situation: error rate is higher than predetermined threshold value, propagation delay time and is higher than the professional pairing user that predetermined threshold value or priority are lower than predetermined threshold value;
When the load of said current system was lower than the lower limit of regulation, the standard of selecting the user to carry out the MIMO mode adjustment was a kind of or combination in any in the following situation: error rate is lower than predetermined threshold value, propagation delay time and is lower than the professional pairing user that predetermined threshold value or priority are higher than predetermined threshold value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101538736A CN101388753B (en) | 2007-09-13 | 2007-09-13 | MIMO mode regulating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101538736A CN101388753B (en) | 2007-09-13 | 2007-09-13 | MIMO mode regulating method |
Publications (2)
| Publication Number | Publication Date |
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| CN101388753A CN101388753A (en) | 2009-03-18 |
| CN101388753B true CN101388753B (en) | 2012-04-18 |
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| CN2007101538736A Expired - Fee Related CN101388753B (en) | 2007-09-13 | 2007-09-13 | MIMO mode regulating method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107370495A (en) * | 2017-08-02 | 2017-11-21 | 上海斐讯数据通信技术有限公司 | Antenna assignment device and method, radio reception device |
| US11522581B2 (en) * | 2020-05-08 | 2022-12-06 | Qualcomm Incorporated | Switching between intra-band multiple input multiple output and inter-band carrier aggregation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030034519A1 (en) * | 1999-06-09 | 2003-02-20 | International Rectifier Corporation | Dual epitaxial layer for high voltage vertical conduction power MOSFET devices |
| CN1829113A (en) * | 2005-03-04 | 2006-09-06 | 松下电器产业株式会社 | Channel self-adaptive multi-user MIMO transmission dispatching method |
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2007
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030034519A1 (en) * | 1999-06-09 | 2003-02-20 | International Rectifier Corporation | Dual epitaxial layer for high voltage vertical conduction power MOSFET devices |
| CN1829113A (en) * | 2005-03-04 | 2006-09-06 | 松下电器产业株式会社 | Channel self-adaptive multi-user MIMO transmission dispatching method |
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| CN101388753A (en) | 2009-03-18 |
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Owner name: NANTONG GENTONG INTELLIGENT EQUIPMENT CO., LTD. Free format text: FORMER OWNER: ZTE CORPORATION Effective date: 20141030 |
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Effective date of registration: 20141030 Address after: 226000 Jiangsu city of Nantong province Tongzhou District Nantong high tech Zone Xingyuan Road No. 299 Patentee after: Nantong gentong Intelligent Equipment Co., Ltd. Address before: 518057 Nanshan District high tech Industrial Park, Guangdong, South Road, science and technology, ZTE building, legal department Patentee before: ZTE Corporation |
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