CN102196415A - Method and equipment for triggering interference coordination of terminal in idle mode - Google Patents
Method and equipment for triggering interference coordination of terminal in idle mode Download PDFInfo
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- CN102196415A CN102196415A CN2011101205005A CN201110120500A CN102196415A CN 102196415 A CN102196415 A CN 102196415A CN 2011101205005 A CN2011101205005 A CN 2011101205005A CN 201110120500 A CN201110120500 A CN 201110120500A CN 102196415 A CN102196415 A CN 102196415A
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Abstract
The invention discloses a method and equipment for triggering the interference coordination of a terminal in an idle mode, which relate to the technical field of communication systems. The terminal can accurately obtain the type of a candidate cell, improve the interference coordination performance, ensure relatively lower signaling overhead and increase the utilization rate of conventional resources. The method for triggering the interference coordination of the terminal in the idle mode comprises that: the terminal reads and resolves the system information of a serving cell to obtain the measurement resources limitation information of the serving cell and a neighbor cell; the terminal performs cell reselection evaluation, and reads the system information of the candidate cell to obtain the type of the candidate cell when the candidate cell is determined to be reselected; and the terminal determines whether measurement resource limitations are required to be triggered for the measurement of the serving cell and/or the candidate cell according to the measurement resource limitation information and the types of the candidate cell and the serving cell.
Description
Technical field
The present invention relates to the communication system technical field, especially relate to the method and apparatus that the terminal under the idle pulley is triggered interference coordination.
Background technology
(Inter-Cell Interference Coordination ICIC) is Long Term Evolution (Long Term Evolution, LTE) key technology that presence of intercell interference is evaded in the system to Inter-Cell Interference Coordination.ICIC makes presence of intercell interference controlled by managing radio resources, is a kind of many cell radio resources management function of considering situation such as resource use and load in a plurality of sub-districts and carrying out.
In the version of LTE Release 10, the Inter-Cell Interference Coordination (enhanced ICIC, eICIC) technology that strengthen have been introduced.EICIC is a kind of scheme of time domain, and it uses almost blank subframe, and (Almost Blank Subframe ABS) protects the resource that is subjected to strong presence of intercell interference.
When carrying out the switching of sub-district gravity treatment or sub-district, the measurement resource limit that can use based on the eICIC technical configuration triggers interference coordination.As subscriber equipment (User Equipment, when UE) confirming to carry out sub-district gravity treatment or switching according to gravity treatment of normal sub-district or handover mechanism, from measure resource limit information, confirm whether should adopt corresponding measurement resource limit that Serving cell and candidate cell are measured, to carry out the assessment that switch sub-district gravity treatment or sub-district again according to the type of Serving cell and candidate cell.
In realizing process of the present invention, the inventor finds to exist at least in the prior art following shortcoming:
When triggering interference coordination, UE need be known the type of measuring resource limit information and Serving cell and candidate cell, as grand (Macro) sub-district, little (Pico) sub-district or honeycomb (Femto) sub-district.In the existing scheme to being in the UE under the connection mode, the Radio Resource control by special use (Radio Resource Control, RRC) signaling is informed to this UE and is measured resource limit information and which sub-district is used these measure resource limit; Yet, to being in the UE under the idle pulley (IDLE), do not carry out deep research and discussion in the existing scheme, suitable processing scheme is not proposed.
For example, how to know the type of Target cell candidate cell about the UE under the idle pulley, existing processing method is: be respectively Macro sub-district, Pico sub-district and Femto sub-district in advance and divide a part of Physical Cell Identifier (Physical Cell Identifier, PCI) scope, UE determines that according to the PCI scope that PCI belonged to of Target cell candidate cell this Target cell candidate cell belongs to Macro sub-district, Pico sub-district or Femto sub-district.The shortcoming of this method is more, be generally 504 as the PCI in the existing system, quantity is very limited, is being after Pico sub-district and Femto sub-district keep the PCI of a part of scope respectively, the PCI number that the Macro sub-district can be used is less, can't satisfy the needs of actual scene; And PCI can not determine a sub-district uniquely as the cell ID of physical layer, makes mistakes easily according to the resulting cell type of PCI, can't accurately know the type of Target cell candidate cell.
As from the foregoing, demand a kind of suitable scheme urgently to UE triggering interference coordination under the idle pulley.
Summary of the invention
The embodiment of the invention provides a kind of method and apparatus that terminal under the idle pulley is triggered interference coordination, can make terminal accurately know the type of candidate cell, improved the performance of interference coordination, and need not the flow process of existing sub-district gravity treatment is carried out bigger change with relevant signaling, reduce the expense of signaling, improved the utilance of existing resource.
For achieving the above object, the technical scheme of the embodiment of the invention is achieved in that
The embodiment of the invention provides a kind of method to the triggering of the terminal under idle pulley interference coordination, comprising:
Terminal reads and the analysis service system information of subdistricts, obtains the measurement resource limit information to Serving cell and adjacent sub-district, comprises described measurement resource limit information in the described system information;
Terminal is carried out the sub-district reselection evaluation, when determining to reselect to candidate cell, read the system information of candidate cell, obtain the type of candidate cell, comprise the type sign in the system information of described candidate cell, the type of described type sign indication candidate cell;
Terminal is according to the type of the type of described measurement resource limit information, candidate cell and the Serving cell known, determine whether and to measure resource limit to the measurement triggering of Serving cell and/or candidate cell, if do not need, continue to carry out current cell reselection process, if need, use the measurement resource limit and again Serving cell and/or candidate cell are measured, and carry out the sub-district reselection evaluation again.
A kind of terminal equipment comprises in the described terminal equipment and triggers the interference coordination device, and described triggering interference coordination device comprises:
Measure the resource limit information acquisition unit, be used to read and the analysis service system information of subdistricts, obtain measurement resource limit information, comprise described measurement resource limit information in the described system information Serving cell and adjacent sub-district;
Candidate cell type acquiring unit, be used to carry out the sub-district reselection evaluation, when determining to reselect to candidate cell, read the system information of candidate cell, obtain the type of candidate cell, comprise the type sign in the system information of described candidate cell, the type of described type sign indication candidate cell;
The interference coordination processing unit, be used for type according to the type of described measurement resource limit information, candidate cell and the Serving cell known, determine whether and to measure resource limit to the measurement triggering of Serving cell and/or candidate cell, if do not need, continue to carry out current cell reselection process, if need, use the measurement resource limit and again Serving cell and/or candidate cell are measured, and carry out the sub-district reselection evaluation again.
A kind of network equipment, the described network equipment comprises the interference coordination management devices, described interference coordination management devices comprises:
System information is provided with the unit, is used in system information of subdistricts the type sign being set, the type of described type sign indicating cell;
Transmitting element is used for when terminal equipment obtains system information, and the system information after will the unit will be set be provided with through described system information sends to terminal equipment.
By as seen above-mentioned, the embodiment of the invention provides a kind of novel scheme to the triggering of the terminal under idle pulley interference coordination, by modification and adjustment to cell system information, make terminal know the type of measuring resource limit information and candidate cell, thereby guaranteed the normal execution of interference coordination.The technical scheme of the embodiment of the invention has been avoided the PCI in the system is divided and reserves, and can satisfy the number of cells actual needs of system more for a long time, and can make terminal accurately know the type of candidate cell, has improved the performance of interference coordination; This programme need not the flow process of existing sub-district gravity treatment is carried out bigger change with relevant signaling, has reduced the expense of signaling, has improved the utilance of existing resource.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
A kind of method flow schematic diagram that terminal under the idle pulley is triggered interference coordination that Fig. 1 provides for the embodiment of the invention one;
A kind of method flow schematic diagram that terminal under the idle pulley is triggered interference coordination that Fig. 2 provides for the embodiment of the invention two;
The scene schematic diagram that the terminal that Fig. 3 provides for the embodiment of the invention two moves between macrocell and Microcell;
The terminal that Fig. 4 provides for the embodiment of the invention two is at the scene schematic diagram of macrocell and CSG moving between cells;
The structural representation of the triggering interference coordination device that is comprised in the terminal equipment that Fig. 5 provides for the embodiment of the invention three;
The structural representation of included interference coordination management devices in the network equipment that Fig. 6 provides for the embodiment of the invention four.
Embodiment
Below in conjunction with accompanying drawing of the present invention, technical scheme of the present invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, the every other embodiment that those of ordinary skills are obtained under the prerequisite of not making creative work belongs to the scope of protection of the invention.
A kind of method that the embodiment of the invention one provides to the triggering of the terminal under idle pulley interference coordination, referring to Fig. 1, this method comprises:
11: terminal reads and the analysis service system information of subdistricts, obtains the measurement resource limit information to Serving cell and adjacent sub-district, comprises described measurement resource limit information in the described system information.
12: terminal is carried out the sub-district reselection evaluation, when determining to reselect to candidate cell, read the system information of candidate cell, obtain the type of candidate cell, comprise the type sign in the system information of described candidate cell, the type of described type sign indication candidate cell.
13: terminal determines whether and need measure resource limit to the measurement triggering of Serving cell and/or candidate cell according to the type of the type of described measurement resource limit information, candidate cell and the Serving cell known.
14: do not measure resource limit if do not need to trigger, continue to carry out current cell reselection process.
15: measure resource limit if need to trigger, application is measured resource limit and again Serving cell and/or candidate cell is measured, and carries out the sub-district reselection evaluation again.
By as seen above-mentioned, the embodiment of the invention provides a kind of novel scheme to the triggering of the terminal under idle pulley interference coordination, by modification and adjustment to cell system information, make terminal know the type of measuring resource limit information and candidate cell, thereby guaranteed the normal execution of interference coordination.The technical scheme of the embodiment of the invention has been avoided the PCI in the system is divided and reserves, and can satisfy the number of cells actual needs of system more for a long time, and can make terminal accurately know the type of candidate cell, has improved the performance of interference coordination; This programme need not the flow process of existing sub-district gravity treatment is carried out bigger change with relevant signaling, has reduced the expense of signaling, has improved the utilance of existing resource.
Serving cell in the embodiment of the invention refers to the current terminal that is, (User Equipment UE), provides the sub-district of service as subscriber equipment; The sub-district that terminal will reselect to when candidate cell referred to the sub-district gravity treatment, candidate cell are generally a sub-district of selecting from the adjacent sub-district of the Serving cell of terminal.
The scheme of the embodiment of the invention proposes a kind of method that idle pulley UE is triggered interference coordination, make UE can use suitable measurement resource limit Serving cell and adjacent sub-district are measured, under the strong jamming condition that is subjected to from adjacent sub-district, also can obtain accurate measurement result.
The method to the triggering of the terminal under idle pulley interference coordination that the embodiment of the invention two is provided describes below, referring to Fig. 2, specifically comprises the steps:
21: terminal reads and the analysis service system information of subdistricts, obtains the measurement resource limit information to Serving cell and adjacent sub-district, comprises described measurement resource limit information in the described system information.
Terminal is in the resident system information that can read this Serving cell in the process of Serving cell.To measure resource limit information in the embodiment of the invention is carried in the system information of subdistricts, broadcasting by system information makes the terminal under the idle pulley can receive the resource limit information of measuring, be carried in system information of subdistricts block type 4 (SystemInformationBlockType4) message and system information block type 5 (SystemInformationBlockType5) message as measuring resource limit information, thereby guaranteed and to have limited the terminal applies interference coordination under the idle pulley.
Further, can also comprise the type sign in the above-mentioned system information that reads in the embodiment of the invention, the type of described type sign indication Serving cell, terminal is known the type of Serving cell according to described type sign.Be appreciated that, terminal also can be known the type of Serving cell by other modes, for example, terminal can be known the type of Serving cell when inserting this Serving cell, perhaps, terminal also may obtain the type and the preservation of this Serving cell by last cell reselection process, thereby in this cell reselection process, can know the type of this Serving cell.
Above-mentioned measurement resource limit information has comprised the measurement resource limit information to the Serving cell of terminal and adjacent sub-district (with neighboring cell), at this, if for the measurement resource limit information spinner of Serving cell and adjacent sub-district at a certain terminal, in that this terminal is carried out need be to the Serving cell of this terminal and the measurement resource limit information of adjacent sub-district when measuring resource limit.Be appreciated that to measure in the resource limit information and can also comprise except that Serving cell and adjacent sub-district the measurement resource limit information of other sub-districts a certain terminal.
Above-mentioned measurement resource limit information not only can indicate whether to measure resource limit, can also indicate the concrete mode that is adopted when measuring resource limit of carrying out.
Referring to table 1, shown a kind of example of measuring resource limit information, in the time need not carrying out the measurement resource limit, indication " No Assets restriction " in the table 1; When need were carried out the measurement resource limit, table 1 had provided the measurement resource limit mode based on the ABS subframe, and the ABS subframe is to reduce the subframe of transmitted power (comprise and not sending) and taking in sail property on some physical channels.
Table 1
Content in the above-mentioned table 1 has mainly provided the example of the measurement resource limit information under two kinds of scenes, a kind of is terminal scene when mobile between macrocell and Microcell, another kind ofly is terminal scene when mobile between macrocell and CSG sub-district (or being referred to as the Femto sub-district).
The scene of scene one, macrocell and Microcell
In this scene, terminal moves between macrocell and Microcell, supports the eICIC function can allow UE reside on the more weak Microcell.UE (PUE) in the Microcell (pico) measures Serving cell (Microcell) in the ABS of macrocell, so that its measurement result to Serving cell is more accurate.
Referring to Fig. 3, outermost circle is represented macrocell, and inner most circle is represented the nucleus of Microcell, and Microcell also has the cell range expansion, and (Microcell still can provide service to terminal in the CRE zone for Cell Range Extension, CRE) zone.This scene also can be described respectively from following two kinds of situations:
Situation 1)
Terminal (as UE) moves between macrocell and Microcell, when the Serving cell of terminal is Microcell and this terminal when being positioned at macrocell coverage area, at this moment, UE is expressed as PUE, and PUE is subjected to the interference from macrocell.
At this moment, the Serving cell of terminal is measured resource limit and mode for (Almost Blank Subframe ABS) goes up the Serving cell of terminal is measured in the almost blank subframe of macrocell; If the candidate cell of terminal is macrocell or CSG sub-district, candidate cell to terminal is not measured resource limit, if the candidate cell of terminal is a Microcell, the candidate cell of terminal is measured resource limit and mode is measured for the candidate cell to terminal on the ABS of macrocell.
Situation 2)
Terminal moves between macrocell and Microcell, when the Serving cell of terminal is that macrocell and this terminal be not in the CSG cell coverage area time, in situation 2) terminal is also in the coverage of Microcell or be positioned at the coverage edge of Microcell.For scene shown in Figure 3, though there is not the CSG sub-district, but considering that the CSG sub-district compares Microcell and can bring stronger interference, is the principal element of considering in the interference coordination process, points out situation 2 specially at this) in terminal can be in the coverage of CSG sub-district.
At this moment, the Serving cell of terminal is not measured resource limit; If the candidate cell of terminal is macrocell or CSG sub-district, candidate cell to terminal is not measured resource limit, if the candidate cell of terminal is a Microcell, the candidate cell of terminal is measured resource limit and mode is measured for the candidate cell to terminal on the ABS of macrocell.
The scene of scene two, macrocell and CSG sub-district
In this scene, support the eICIC function can allow UE reside in macrocell, experience strong jamming (annotate: the UE of macrocell can't be linked in the CSG sub-district) simultaneously from the CSG sub-district.UE in the macrocell (MUE) should measure Serving cell (macrocell) in the ABS of CSG sub-district subframe, so that its measurement result to Serving cell is more accurate.
Referring to Fig. 4, outside circle is represented macrocell, and inner circle is represented the CSG sub-district.This scene comprises as situation 3) in processing.
Situation 3)
Terminal is in macrocell and CSG moving between cells, and when the Serving cell of terminal is macrocell and this terminal when being positioned at the CSG cell coverage area, terminal has been subjected to the interference of CSG sub-district.
At this moment, the Serving cell of terminal being measured resource limit and mode measures for the Serving cell to terminal on the ABS of CSG sub-district; If the candidate cell of terminal is macrocell or Microcell, the candidate cell of terminal is measured resource limit and mode is measured for the candidate cell to terminal on the ABS of CSG sub-district; If the candidate cell of terminal is the CSG sub-district, the candidate cell of terminal is not measured resource limit.
22: terminal is carried out the sub-district reselection evaluation.
Terminal is carried out the sub-district reselection evaluation according to existing cell re-selection mechanism.For example, carry out reselection evaluation according to the signal quality of each adjacent sub-district and the information such as gravity treatment priority level that had.
23: terminal is chosen candidate cell.
Terminal is chosen a sub-district as candidate cell according to the assessment result in the step 22 in adjacent sub-district.For example, signal quality in the adjacent sub-district is a best sub-district is as candidate cell.
24: terminal reads the system information of candidate cell, obtains the type of candidate cell.
When determining to reselect to candidate cell, read the system information of candidate cell, obtain the type of candidate cell, comprise the type sign in the system information of described candidate cell, the type of described type sign indication candidate cell.
In the embodiment of the invention, the type sign is arranged in system information block type 1 (SystemInformationBlockType1) message, then comprises system information block type message in the system information of the candidate cell that reads of terminal,
The type of the candidate cell of the above-mentioned type sign indication can be in macrocell, Microcell and the C SG sub-district a kind of.
Concrete structure and content below in conjunction with SystemInformationBlockType1 describe the mode that the type sign is set.
With the csg-Indication information deletion in the above-mentioned SystemInformationBlockType1 message and be rewritten as following type sign:
cell-type-Indication?ENUMERATED{macro，pico，CSG}，
Csg-Indication information can only indicate whether the sub-district for CSG, and by the type sign after the above-mentioned rewriting, can indicate whether a kind of in macrocell, Microcell and the CSG sub-district exactly, make terminal know the type of candidate cell exactly, thereby adopt suitable measurement resource limit.
The set-up mode of this type sign has reduced the change to existing signaling to the utmost, has avoided existing signaling is caused conflict, has reduced signaling consumption, has improved usage factor of system resource.
Be appreciated that when needs the type of the candidate cell (or Serving cell) that the above-mentioned type sign is indicated can be not limited to macrocell, Microcell and CSG sub-district, and is other cell type.
The embodiment of the invention is not carried out strict qualification to the execution order of each step, for example, when terminal when step 22 is carried out the sub-district reselection evaluation, read the system information of candidate cell, after having known the type of candidate cell, in step 24, can repeat to read the system information of candidate cell again, to save system resource, accelerate sub-district gravity treatment speed.
25: terminal is according to the type of the type of candidate cell and the Serving cell known, relatively and analysis to measure resource limit information.
Terminal is inquired about the content in the above-mentioned table 1 according to the type of candidate cell and Serving cell and is compared.
26: terminal determines whether and need measure resource limit to the measurement triggering of Serving cell and/or candidate cell according to the result who compares and analyze in the step 25.
Further, in step 26, when needs use to be measured resource limit, can also determine to measure the concrete mode of resource limit, for example, on the subclass of the ABS of CSG sub-district, measure, perhaps, on the ABS of macrocell subclass, measure.
27: do not measure resource limit if do not need to trigger, continue to carry out current cell reselection process.
28: measure resource limit if need to trigger, application is measured resource limit and again Serving cell and/or candidate cell is measured, and carries out the sub-district reselection evaluation again.
Further, the mode of the determined measurement resource limit of terminal applies is measured Serving cell and/or candidate cell, and carries out the sub-district reselection evaluation again.
By as seen above-mentioned, the embodiment of the invention provides a kind of novel scheme to the triggering of the terminal under idle pulley interference coordination, by modification and adjustment to cell system information, make terminal know the type of measuring resource limit information and candidate cell, thereby guaranteed the normal execution of interference coordination.The technical scheme of the embodiment of the invention has been avoided the PCI in the system is divided and reserves, and can satisfy the number of cells actual needs of system more for a long time, and can make terminal accurately know the type of candidate cell, has improved the performance of interference coordination; This programme need not the flow process of existing sub-district gravity treatment is carried out bigger change with relevant signaling, has reduced the expense of signaling, has improved the utilance of existing resource.
The embodiment of the invention three also provides a kind of terminal equipment, comprises in the described terminal equipment triggering the interference coordination device, and referring to Fig. 5, described triggering interference coordination device comprises:
Measure resource limit information acquisition unit 51, be used to read and the analysis service system information of subdistricts, obtain measurement resource limit information, comprise described measurement resource limit information in the described system information Serving cell and adjacent sub-district;
Candidate cell type acquiring unit 52, be used to carry out the sub-district reselection evaluation, when determining to reselect to candidate cell, read the system information of candidate cell, obtain the type of candidate cell, comprise the type sign in the system information of described candidate cell, the type of described type sign indication candidate cell;
Interference coordination processing unit 53, be used for type according to the type of described measurement resource limit information, candidate cell and the Serving cell known, determine whether and to measure resource limit to the measurement triggering of Serving cell and/or candidate cell, if do not need, continue to carry out current cell reselection process, if need, use the measurement resource limit and again Serving cell and/or candidate cell are measured, and carry out the sub-district reselection evaluation again.
Further, the type of described candidate cell or Serving cell is a kind of in macrocell, Microcell and the CSG sub-district;
Described candidate cell type acquiring unit 52 specifically is used to read system information block type 1 message of candidate cell, obtains the type of candidate cell, comprises described type sign in described system information block type 1 message.
Concrete, with the csg-Indication information deletion in said system type of information block 1 message and be rewritten as following type sign:
cell-type-Indication?ENUMERATED{macro，pico，CSG}，
Csg-Indication information can only indicate whether the sub-district for CSG, and by the type sign after the above-mentioned rewriting, can indicate whether a kind of in macrocell, Microcell and the CSG sub-district exactly, make terminal know the type of candidate cell exactly, thereby adopt suitable measurement resource limit.
The set-up mode of this type sign has reduced the change to existing signaling to the utmost, has avoided existing signaling is caused conflict, has reduced signaling consumption, has improved usage factor of system resource.
The concrete working method of the terminal equipment in the embodiment of the invention can be referring to the related content among the method embodiment of the present invention.Above-mentioned terminal equipment can be UE or various types of portable terminal.
By as seen above-mentioned, the embodiment of the invention provides a kind of novel scheme to the triggering of the terminal under idle pulley interference coordination, by modification and adjustment to cell system information, make terminal know the type of measuring resource limit information and candidate cell, thereby guaranteed the normal execution of interference coordination.The technical scheme of the embodiment of the invention has been avoided the PCI in the system is divided and reserves, and can satisfy the number of cells actual needs of system more for a long time, and can make terminal accurately know the type of candidate cell, has improved the performance of interference coordination; This programme need not the flow process of existing sub-district gravity treatment is carried out bigger change with relevant signaling, has reduced the expense of signaling, has improved the utilance of existing resource.
The embodiment of the invention four also provides a kind of network equipment, and the described network equipment comprises the interference coordination management devices, and referring to Fig. 6, described interference coordination management devices comprises:
System information is provided with unit 61, is used in system information of subdistricts the type sign being set, the type of described type sign indicating cell;
Transmitting element 62 is used for when terminal equipment obtains system information, and the system information after will the unit will be set be provided with through described system information sends to terminal equipment.
Further, described system information is provided with unit 61, is used in system information block type 1 message described type sign being set, and the type of described type sign indicating cell is macrocell, Microcell and closes a kind of in the CSG sub-district.
Further, described system information is provided with unit 61 and comprises the rewriting module, and described rewriting module is used for the csg indication information of system information block type 1 message is revised as the type sign,
Described system information is provided with unit 61, also is used in system information of subdistricts the resource limit information of measuring being set.This related content of measuring an example of resource limit information can be referring to above-mentioned table 1.
Utilize above-mentioned interference coordination management devices can the type sign be set in each system information of subdistricts, with the type of indicating cell; Utilize above-mentioned interference coordination management devices in each system information of subdistricts, to be provided with and measure resource limit information,, guaranteed successfully on the terminal equipment of idle pulley, to trigger and use and measure resource limit by these operations.
The concrete working method of the interference coordination management devices in the embodiment of the invention can be referring to the related content among the method embodiment of the present invention.The above-mentioned network equipment can have the server of corresponding function for other of base station or network side.
By as seen above-mentioned, the embodiment of the invention provides a kind of novel scheme to the triggering of the terminal under idle pulley interference coordination, by modification and adjustment to cell system information, make terminal know the type of measuring resource limit information and candidate cell, thereby guaranteed the normal execution of interference coordination.The technical scheme of the embodiment of the invention has been avoided the PCI in the system is divided and reserves, and can satisfy the number of cells actual needs of system more for a long time, and can make terminal accurately know the type of candidate cell, has improved the performance of interference coordination; This programme need not the flow process of existing sub-district gravity treatment is carried out bigger change with relevant signaling, has reduced the expense of signaling, has improved the utilance of existing resource.
Those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can software product form embody, this computer software product can be stored in the storage medium, as ROM/RAM, magnetic disc, CD etc., comprise that some instructions are with so that a computer equipment (can be a personal computer, server, the perhaps network equipment etc.) carry out the described method of some part of each embodiment of the present invention or embodiment.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being made, is equal to replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (10)
1. one kind is triggered the method for interference coordination to the terminal under the idle pulley, it is characterized in that described method comprises:
Terminal reads and the analysis service system information of subdistricts, obtains the measurement resource limit information to Serving cell and adjacent sub-district, comprises described measurement resource limit information in the described system information;
Terminal is carried out the sub-district reselection evaluation, when determining to reselect to candidate cell, read the system information of candidate cell, obtain the type of candidate cell, comprise the type sign in the system information of described candidate cell, the type of described type sign indication candidate cell;
Terminal is according to the type of the type of described measurement resource limit information, candidate cell and the Serving cell known, determine whether and to measure resource limit to the measurement triggering of Serving cell and/or candidate cell, if do not need, continue to carry out current cell reselection process, if need, use the measurement resource limit and again Serving cell and/or candidate cell are measured, and carry out the sub-district reselection evaluation again.
2. method according to claim 1, it is characterized in that, the system information of the described Serving cell that obtains is system information block type 4SystemInformationBlockType4 message and system information block type 5SystemInformationBlockType5 message, comprises the measurement resource limit information to Serving cell and candidate cell in described system information block type 4 and the system information block type 5.
3. method according to claim 1 and 2 is characterized in that,
Also comprise the type sign in the system information of the described Serving cell that obtains, the type of described type sign indication Serving cell;
Terminal knows that according to described type sign the type of Serving cell, the type of described Serving cell are a kind of in grand Macro sub-district, little Pico sub-district and the closed user group C SG sub-district.
4. method according to claim 1 is characterized in that, the system information of the described candidate cell that reads is a system information block type 1SystemInformationBlockType1 message,
Comprise described type sign in described system information block type 1 message, the type of the candidate cell of described type sign indication is a kind of in grand Macro sub-district, little Pico sub-district and the closed user group CSG sub-district.
5. method according to claim 1 is characterized in that,
Described terminal determines whether that according to the type of the type of described measurement resource limit information, candidate cell and the Serving cell known need measure resource limit to the measurement triggering of Serving cell and/or candidate cell comprises:
Terminal is according to the type of the type of described measurement resource limit information, candidate cell and the Serving cell known, determine whether and to measure resource limit to the measurement triggering of Serving cell and/or candidate cell, and, determining needs to trigger when measuring resource limit the mode of the measurement resource limit that is adopted;
Described if need, use and measure resource limit and again Serving cell and/or candidate cell are measured, and carry out the sub-district reselection evaluation again and comprise:
Use the mode of determined measurement resource limit Serving cell and/or candidate cell are measured, and carry out the sub-district reselection evaluation again.
6. method according to claim 1 is characterized in that, described measurement resource limit information comprises following content:
Terminal moves between macrocell and Microcell, when the Serving cell of terminal is little Pico sub-district and this terminal when being positioned at grand Macro cell coverage area, the Serving cell of terminal is measured resource limit and mode on the almost blank subframe ABS of macrocell the Serving cell of terminal is measured; If the candidate cell of terminal is macrocell or CSG sub-district, candidate cell to terminal is not measured resource limit, if the candidate cell of terminal is a Microcell, the candidate cell of terminal is measured resource limit and mode is measured for the candidate cell to terminal on the ABS of macrocell;
Terminal moves between macrocell and Microcell, when the Serving cell of terminal is macrocell and this terminal not in the CSG cell coverage area time, the Serving cell of terminal is not measured resource limit; If the candidate cell of terminal is macrocell or CSG sub-district, candidate cell to terminal is not measured resource limit, if the candidate cell of terminal is a Microcell, the candidate cell of terminal is measured resource limit and mode is measured for the candidate cell to terminal on the ABS of macrocell;
Terminal is in macrocell and CSG moving between cells, when the Serving cell of terminal is macrocell and this terminal when being positioned at the CSG cell coverage area, the Serving cell of terminal is measured resource limit and mode is measured for the Serving cell to terminal on the ABS of CSG sub-district; If the candidate cell of terminal is macrocell or Microcell, the candidate cell of terminal is measured resource limit and mode is measured for the candidate cell to terminal on the ABS of CSG sub-district; If the candidate cell of terminal is the CSG sub-district, the candidate cell of terminal is not measured resource limit.
7. a terminal equipment is characterized in that, comprises in the described terminal equipment triggering the interference coordination device, and described triggering interference coordination device comprises:
Measure the resource limit information acquisition unit, be used to read and the analysis service system information of subdistricts, obtain measurement resource limit information, comprise described measurement resource limit information in the described system information Serving cell and adjacent sub-district;
Candidate cell type acquiring unit, be used to carry out the sub-district reselection evaluation, when determining to reselect to candidate cell, read the system information of candidate cell, obtain the type of candidate cell, comprise the type sign in the system information of described candidate cell, the type of described type sign indication candidate cell;
The interference coordination processing unit, be used for type according to the type of described measurement resource limit information, candidate cell and the Serving cell known, determine whether and to measure resource limit to the measurement triggering of Serving cell and/or candidate cell, if do not need, continue to carry out current cell reselection process, if need, use the measurement resource limit and again Serving cell and/or candidate cell are measured, and carry out the sub-district reselection evaluation again.
8. terminal equipment according to claim 7 is characterized in that, the type of described candidate cell or Serving cell is a kind of in macrocell, Microcell and the CSG sub-district;
Described candidate cell type acquiring unit specifically is used to read system information block type 1 message of candidate cell, obtains the type of candidate cell, comprises described type sign in described system information block type 1 message.
9. a network equipment is characterized in that, the described network equipment comprises the interference coordination management devices, and described interference coordination management devices comprises:
System information is provided with the unit, is used in system information of subdistricts the type sign being set, the type of described type sign indicating cell;
Transmitting element is used for when terminal equipment obtains system information, and the system information after will the unit will be set be provided with through described system information sends to terminal equipment.
10. the network equipment according to claim 9 is characterized in that,
Described system information is provided with the unit, is used in system information block type 1 message described type sign being set, and the type of described type sign indicating cell is macrocell, Microcell and closes a kind of in the CSG sub-district;
Described system information is provided with the unit, also is used in system information of subdistricts the resource limit information of measuring being set;
Wherein, described system information is provided with the unit and comprises the rewriting module, and described rewriting module is used for the csg indication information of system information block type 1 message is revised as described type sign.
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| CN201110120500.5A CN102196415B (en) | 2011-05-10 | 2011-05-10 | Method and equipment for triggering interference coordination of terminal in idle mode |
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Effective date of registration: 20170901 Address after: 100070, No. 188, building 25, No. eighteen, South Fourth Ring Road, Fengtai District, Beijing, 1, 101 Patentee after: Beijing Haiyun Technology Co. Ltd. Address before: 510663, No. 3, color road, Science City, Guangzhou Development Zone, Guangdong Patentee before: New Post Communication Equipment Co., Ltd. |