CN101932013A - Control method of soft frequency multiplexing function - Google Patents
Control method of soft frequency multiplexing function Download PDFInfo
- Publication number
- CN101932013A CN101932013A CN2009100878513A CN200910087851A CN101932013A CN 101932013 A CN101932013 A CN 101932013A CN 2009100878513 A CN2009100878513 A CN 2009100878513A CN 200910087851 A CN200910087851 A CN 200910087851A CN 101932013 A CN101932013 A CN 101932013A
- Authority
- CN
- China
- Prior art keywords
- load
- vru
- counter
- current
- cell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a control method of soft frequency multiplexing function, comprising the steps of: a, starting up a cell load evaluation timer and zeroing a cell uplink load counter and a cell downlink load counter; b, starting up a cell load monitoring timer, which, upon overtime, determines a current uplink load according to an available uplink VRU number on a preset channel and determines a current downlink load according to an available downlink VRU number on the preset channel; judging whether the uplink load is larger than an uplink load threshold, if so, implementing one plus of the uplink load counter, and if not, implementing one minus of the uplink load counter; judging whether the downlink is larger than a downlink load threshold, if so, implementing one plus of the downlink load counter, and if not, implementing one minus of the downlink load counter; d, judging whether the cell load evaluation timer is overtime, if so, performing the step e, and if not, returning to the step b; and e, judging whether the uplink load counter and the downlink load counter are larger than zero, if so, opening the soft frequency multiplexing function, and if not, closing the soft frequency multiplexing function; and returning to the step a.
Description
Technical field
The present invention relates to the soft-frequency reuse technology in the TD-SCDMA system, particularly relate to a kind of control method of soft frequency multiplexing function.
Background technology
Co-channel interference influences the key factor of system core performance index (KPI) in the TD-SCDMA system, and the system business channel solves problem of co-channel interference among the N frequency TD-SCDMA in order to solve, and has proposed the networking plan of soft-frequency reuse at present in the industry.Soft-frequency reuse is a kind of radio resource management method of optimization.In this method, the central area of sub-district is used and is partly covered carrier frequency, the fringe region of sub-district uses all standing carrier frequency, when subscriber equipment (UE) by the fringe region of Serving cell when move in the central area, UE can be switched to half and cover carrier frequency, when UE by the central area of Serving cell when fringe region moves, UE can be switched to all standing carrier frequency, like this, change, can reduce the co-channel interference level between neighbor cell by the UE that is in cell edge is carried out intra-cell.
Soft frequency multiplexing function then is that exist at network just can be apparent in view under certain loading condition to the postiive gain of network; When offered load can relatively hang down, for example in the TD-SCDMA of China Mobile networking initial stage, enabling of soft frequency multiplexing function then can make UE do to switch continually in the sub-district, can reduce systematic function and user experience like this.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of control method of soft frequency multiplexing function, and this method can be according to the current loading condition in sub-district in the TD-SCDMA system, reasonably controls the startup of soft frequency multiplexing function or closes.
In order to achieve the above object, the technical scheme of the present invention's proposition is:
A kind of control method of soft frequency multiplexing function may further comprise the steps:
A, startup cell load evaluation timer are with ascending load of cell counter and the zero setting of down load counter;
B, startup cell load monitor timer; When described cell load monitor timer is overtime, according to the number of the available up virtual resource unit (VRU) on the current preset channel, determine current ascending load, according to the available descending VRU number on the current preset channel, determine current down load; Whether judge described ascending load greater than default ascending load threshold value, if then described ascending load counter adds one, otherwise described ascending load counter subtracts one; Judge that whether described down load is greater than default down load threshold value, if then described down load counter is added one, otherwise described down load counter is subtracted one;
C, judge whether described cell load evaluation timer is overtime, if, execution in step d then, otherwise return step b;
D, whether judge described ascending load counter or described down load counter greater than zero, if, then open soft frequency multiplexing function, return step a, otherwise, close soft frequency multiplexing function, return step a.
Preferably, described according to the available up VRU number on the current preset channel, determine that current ascending load is:
According to the available up VRU number on the current preset channel, according to formula: the available up VRU number on uplink cells sign indicating number resource load=1-current preset channel/up VRU resource pool capacity, calculate current ascending load.
Preferably, described according to the available descending VRU number on the current preset channel, determine that current down load is:
According to the available descending VRU number on the current preset channel, according to formula: the available descending VRU number on descending cell code resource load=1-current preset channel/descending VRU resource pool capacity, calculate current down load.
Preferably, described preset channel is common signal channel or DPCH (DPCH).
In sum, the control method of soft frequency multiplexing function that the present invention proposes, by utilizing virtual resource unit the present load situation of sub-district is judged, and just open soft frequency multiplexing function when big judging present load, hour then close soft frequency multiplexing function in present load, thereby reasonably control the start and stop of soft frequency multiplexing function, guaranteed that the soft-frequency reuse technology brings bigger gain for the TD-SCDMA system, the negative effect of also having avoided system load hour soft-frequency reuse technology to bring for the TD-SCDMA system simultaneously.
Description of drawings
Fig. 1 is the flow chart of the embodiment of the invention one.
Embodiment
Main thought of the present invention is, realizes judgement to the TD-SCDMA system load based on VRU, and judge system's uplink and downlink load all than hour, close soft frequency multiplexing function.Like this, the negative effect that can avoid soft frequency multiplexing function that system is produced.
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with the accompanying drawings and the specific embodiments.
Fig. 1 is the flow chart of the embodiment of the invention one, and as shown in Figure 1, this embodiment one mainly may further comprise the steps:
In actual applications, the timeout threshold of this cell load evaluation timer can be provided with according to the practical application needs.In subsequent process, after this cell load evaluation timer is overtime, the loading condition that the base station will be monitored in the time according to timeout threshold, once judge whether opening soft frequency multiplexing function, and open accordingly or shutoff operation, thereby realization is to the control of soft frequency multiplexing function.
Here, the cell load monitor timer is used to limit the time interval that cell load is monitored, and promptly every interval certain hour (i.e. the time that timeout threshold limited of this cell load monitor timer) will carry out the calculating of a up-downgoing load.
The timeout threshold of this cell load monitor timer can be provided with according to the practical application needs.The timeout threshold of cell load monitor timer should be less than the timeout threshold of this cell load evaluation timer.For example, the timeout threshold of cell load monitor timer can be provided with by level second, the timeout threshold of cell load evaluation timer can be by a minute level setting, like this, the timeout threshold of cell load monitor timer be provided with less relatively, can also obtain more sampled point, promptly can carry out the more repeatedly calculating of up-downgoing load within a certain period of time, the assessment result of having guaranteed the up-downgoing loading condition is more near truth.The accuracy of the soft frequency multiplexing function control that correspondingly, also can guarantee to be carried out based on this loading condition assessment result.
Here, uplink and downlink load counter is respectively applied for the situation of the current up-downgoing load of record.
In this step,, determine current uplink and downlink load, can guarantee determined uplink and downlink load result's accuracy like this according to the available uplink and downlink VRU number on the current preset channel.
In actual applications, describedly determine current ascending load according to the available up VRU number on the current preset channel, realize (1) according to the following equation:
Available up VRU number on uplink cells sign indicating number resource load=1-current preset channel/up VRU resource pool capacity formula (1)
In actual applications, describedly determine current down load according to the available descending VRU number on the current preset channel, realize (2) according to the following equation:
Available descending VRU number on descending cell code resource load=1-current preset channel/descending VRU resource pool capacity formula (2)
Preferably, described preset channel can be common signal channel or DPCH.Because in actual applications, utilize the available VRU number on common signal channel or the DPCH (DPCH) to determine current load state, be difficult for being subjected to the influence of the transmission demand data that the user happens suddenly.
Here, after this cell load evaluation timer is overtime, the loading condition that the base station will be monitored in the time according to its timeout threshold, i.e. the accumulating value of uplink and downlink load counter is once judged whether opening soft frequency multiplexing function.Particularly, when ascending load counter or down load counter greater than zero the time, illustrate that then current load is bigger, the situation of co-channel interference can be more serious, needs this moment by opening soft frequency multiplexing function, to solve the problem of co-channel interference; And when ascending load counter and down load counter are not more than zero, illustrate that then present load is less, and do not need to solve the problem of co-channel interference by opening soft frequency multiplexing function, therefore, close soft frequency multiplexing function and get final product this moment.
In technique scheme, the present invention comes loading condition is accurately assessed by utilizing the available VRU number on the current a certain channel, and reasonably control the switch of soft frequency multiplexing function according to this loading condition, thereby make the present invention can guarantee that the soft-frequency reuse technology brings bigger gain for the TD-SCDMA system, the negative effect of also having avoided system load hour soft-frequency reuse technology to bring for the TD-SCDMA system simultaneously.
In sum, more than be preferred embodiment of the present invention only, be not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a control method of soft frequency multiplexing function is characterized in that, this method may further comprise the steps:
A, startup cell load evaluation timer are with ascending load of cell counter and the zero setting of down load counter;
B, startup cell load monitor timer; When described cell load monitor timer is overtime, according to the number of the available up virtual resource unit (VRU) on the current preset channel, determine current ascending load, according to the available descending VRU number on the current preset channel, determine current down load; Whether judge described ascending load greater than default ascending load threshold value, if then described ascending load counter adds one, otherwise described ascending load counter subtracts one; Judge that whether described down load is greater than default down load threshold value, if then described down load counter is added one, otherwise described down load counter is subtracted one;
C, judge whether described cell load evaluation timer is overtime, if, execution in step d then, otherwise return step b;
D, whether judge described ascending load counter or described down load counter greater than zero, if, then open soft frequency multiplexing function, return step a, otherwise, close soft frequency multiplexing function, return step a.
2. control method according to claim 1 is characterized in that, and is described according to the available up VRU number on the current preset channel, determines that current ascending load is:
According to the available up VRU number on the current preset channel, according to formula: the available up VRU number on uplink cells sign indicating number resource load=1-current preset channel/up VRU resource pool capacity, calculate current ascending load.
3. control method according to claim 1 is characterized in that, and is described according to the available descending VRU number on the current preset channel, determines that current down load is:
According to the available descending VRU number on the current preset channel, according to formula: the available descending VRU number on descending cell code resource load=1-current preset channel/descending VRU resource pool capacity, calculate current down load.
4. control method according to claim 1 is characterized in that, described preset channel is common signal channel or DPCH (DPCH).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100878513A CN101932013A (en) | 2009-06-24 | 2009-06-24 | Control method of soft frequency multiplexing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100878513A CN101932013A (en) | 2009-06-24 | 2009-06-24 | Control method of soft frequency multiplexing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101932013A true CN101932013A (en) | 2010-12-29 |
Family
ID=43370856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100878513A Pending CN101932013A (en) | 2009-06-24 | 2009-06-24 | Control method of soft frequency multiplexing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101932013A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102594513A (en) * | 2012-03-20 | 2012-07-18 | 电信科学技术研究院 | Enhanced downlink control signal channel transmission method and device |
-
2009
- 2009-06-24 CN CN2009100878513A patent/CN101932013A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102594513A (en) * | 2012-03-20 | 2012-07-18 | 电信科学技术研究院 | Enhanced downlink control signal channel transmission method and device |
| CN102594513B (en) * | 2012-03-20 | 2015-01-07 | 电信科学技术研究院 | Enhanced downlink control signal channel transmission method and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103078704B (en) | A kind of method and system for managing modulation coding mode | |
| KR101708580B1 (en) | Device and method for configuring almost blank subframe and heterogeneous wireless communication network | |
| WO2012055984A3 (en) | A method for switching a base station from an inactive operational mode to an active operational mode in a hierarchically structured mobile communication network and a corresponding system | |
| CN101005297A (en) | Transmission power control technique and wireless communications system using the same | |
| CN103079235A (en) | Method and device for realizing load balance in long term evolution (LTE) system | |
| WO2010137831A3 (en) | Method of low duty mode operation in a femto base station in consideration of a femto cell type | |
| CN102215076A (en) | Spectrum sensing triggering and realization methods, systems and equipment | |
| EP2852214A1 (en) | Method, system, ue, and network device for reporting user equipment mobility parameter | |
| Morosi et al. | Sleep mode management in cellular networks: a traffic based technique enabling energy saving | |
| CN101370262A (en) | Neighbor section list updating method and system | |
| CN104066196A (en) | Method and device for determining remote radio unit (RRU) | |
| CN107396376A (en) | Cell preload equalization methods and device | |
| CN1984489A (en) | Method for fetching adjacent domain system message by user equipment | |
| CN104955116A (en) | Intensive-network self-optimizing switching method | |
| CN107005935B (en) | Network energy efficiency optimization method and device | |
| US9999060B2 (en) | Radio control system, communication apparatus, radio resource control method, and recording medium | |
| CN102333346A (en) | Load balancing method and system of mobile communication system | |
| CN103731859A (en) | Network resource optimizing method and device | |
| CN101932013A (en) | Control method of soft frequency multiplexing function | |
| WO2014036691A1 (en) | Method for switching small base station state and small base station | |
| CN103167577B (en) | A kind of method, site device of closing community | |
| GB2463163A (en) | Estimating energy costs for network operations | |
| CN104105179A (en) | Small cell base station control method and device | |
| CN103001740B (en) | Paging state control method and device | |
| Abdulkafi et al. | Energy‐aware load adaptive framework for LTE heterogeneous network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101229 |