CN102612070B - Method for configuring wireless resource management and measurement set under multi-point coordination and base station - Google Patents
Method for configuring wireless resource management and measurement set under multi-point coordination and base station Download PDFInfo
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Abstract
The invention discloses a method for configuring a wireless resource management and measurement set under multi-point coordination and a base station. The method comprises the following steps that: nodes in all CoMP (coordinated multi-point) areas have a unique node identifier, wherein the base station reports the CoMP area where user equipment (UE) is positioned and a CoMP area adjacent to the CoMP area where the UE is positioned according to measurement of the UE; the base station configures RRM (Radio Resource Management) measurement set for the UE according to the all determined CoMP areas, wherein the RRM measurement set comprises node identifiers of all nodes in the CoMP area where the UE is positioned and node identifiers of all nodes in the CoMP area adjacent to the CoMP area where the UE is positioned; and the UE performs channel measurement according to the RRM measurement set configured by the base station. By the technical scheme, the problem that the UE cannot be positioned and proper RRM measurement set elements cannot be determined when the UE moves between different nodes which share the same cell identifier under the CoMP is solved.
Description
Technical field
The present invention relates to communication technical field, particularly relate to collocation method and the base station of the RRM measuring set under a kind of multipoint cooperative.
Background technology
Multi-point cooperative (CoMP, Coordinated multi-point) is the interference that a kind of associated treatment by multiple community reduces edge customer UE, improves the spectrum efficiency of edge UE and the mechanism of Consumer's Experience.Application scenarios comprises homogeneous network and heterogeneous network.Wherein, the network scenarios of homogeneous network comprises between the multiple sectors under single subdistrict, and between the radio frequency remoto module (RRU, Radio Remote Unit) being connected to single baseband processing unit (BBU, Building Base band Unit); The network design of the scene of heterogeneous network mainly macrocell-Microcell, wherein can there be independently cell ID Microcell, also can share same cell ID with macrocell.The transmission plan of concrete CoMP can be multiple node simultaneously with a UE interactive information, also can be multiple node reduces interference to particular UE by the position of the precoding vector of the single or multiple node wherein of collaborative setting in advance or transmitting power.
RRM (RRM, Radio Resource Management) measuring set is that base station configures to UE measuring assembly, is generally the set of current area and neighbor cell in the network of single MPS process of existing R10.
The Managed Solution of existing RRM measuring set is the network architecture being applicable to single MPS process, for the network of isomery, especially Microcell and macrocell share the scene of same cell ID, UE needs to distinguish corresponding node, and may move in the coverage of whole macrocell, move between micro-base station of different shared same cell IDs, the method identifying the element in RRM measuring set according to different cell IDs traditionally, UE cannot determine oneself to be positioned at which area of coverage, the collocation method of that is traditional RRM measuring set can not well be suitable for this operative scenario of CoMP.
In sum, when under CoMP, UE moves between the node of different shared same cell IDs, UE cannot determine the area of coverage oneself being positioned at which node, can not determine suitable RRM measuring set element.
Summary of the invention
The collocation method of the RRM measuring set under a kind of multipoint cooperative that the invention provides, when this method solving that UE moves between the node of different shared same cell IDs under CoMP, UE cannot locate, and can not determine the problem of suitable RRM measuring set element.
The invention discloses the collocation method of the RRM measuring set under a kind of multipoint cooperative, wherein, the node under each CoMP region has unique node identification, and the method comprises:
Base station reports according to the measurement of UE determines CoMP region, UE place and the CoMP region adjacent with CoMP region, UE place;
Base station is that UE configures RRM measuring set according to determined each CoMP region; This RRM measuring set comprises: the node identification of all nodes in the node identification of all nodes in CoMP region, UE place and the CoMP region adjacent with CoMP region, UE place;
The RRM measuring set that UE configures according to base station carries out channel measurement.
In the above-mentioned methods, when UE moves to the 2nd CoMP region from a CoMP region, the method comprises further: base station upgrades the RRM measuring set of UE.
In the above-mentioned methods, when UE moves to the 2nd CoMP region from a CoMP region, the RRM measuring set that base station upgrades UE comprises:
Base station reports the 2nd CoMP region determining UE place according to the measurement of UE, and the CoMP region adjacent with the 2nd CoMP region, and base station is that UE configures new RRM measuring set according to the 2nd CoMP region determined,
RRM measuring set before base station upgrades according to new RRM measuring set.
In the above-mentioned methods, described base station is comprised by the RRM measuring set before new RRM measuring set upgrades:
In described RRM measuring set, the node identification of all nodes in a CoMP region is as the entirety upgraded.
In the above-mentioned methods, when UE moves in CoMP region, the RRM measuring set of UE is constant;
UE chooses signal transmission power node within the specific limits, and UE carries out channel measurement to the described node chosen; The subset of RRM measuring set is adjusted.
The invention provides a kind of base station, when this base station solves that UE moves between the node of different shared same cell IDs under CoMP, UE cannot locate, and can not determine the problem of suitable RRM measuring set element.
The invention discloses a kind of base station, described base station has unique node identification, wherein,
Described base station comprises: receiver module, control module;
Receiver module, the measurement sent for receiving UE reports, and the measurement of the UE received is reported and sends to control module;
Control module, the measurement for the UE sent according to receiver module reports, and determines the CoMP region at described UE place and the CoMP region adjacent with CoMP region, described UE place; Be that UE configures RRM measuring set according to determined each CoMP region; This RRM measuring set comprises: the node identification of all nodes in the node identification of all nodes in CoMP region, UE place and the CoMP region adjacent with CoMP region, UE place; For described RRM measuring set is sent to UE.
In above-mentioned base station, when UE moves to the 2nd CoMP region from a CoMP region, this base station comprises further:
Described control module, for according to renewal RRM measuring set.
In above-mentioned base station, described receiver module, reports for the measurement receiving UE, received measurement is reported and sends to control module;
Control module, the measurement for sending according to receiver module reports the 2nd CoMP region determining UE place, and the CoMP region adjacent with the 2nd CoMP region; For being that UE configures new RRM measuring set according to the 2nd CoMP region determined; For according to new RRM measuring set upgrade before RRM measuring set.
In above-mentioned base station, described control module, in described RRM measuring set, using the node identification of all nodes in a CoMP region as the entirety upgraded.
In above-mentioned base station, when UE moves in CoMP region, the RRM measuring set that control module configures is constant; Control module is used for, and adjusts the subset of RRM measuring set.
In sum, the invention provides collocation method and the base station of the RRM measuring set under a kind of multipoint cooperative; In technical scheme provided by the invention, the node under each CoMP region has unique node identification, and base station reports according to the measurement of UE determines CoMP region, UE place and the CoMP region adjacent with CoMP region, UE place; Base station is that UE configures RRM measuring set according to determined each CoMP region; This RRM measuring set comprises: the node identification of all nodes in the node identification of all nodes in CoMP region, UE place and the CoMP region adjacent with CoMP region, UE place; The RRM measuring set that UE configures according to base station carries out channel measurement.When method provided by the invention solves that UE moves between the node of different shared same cell IDs under CoMP, UE cannot locate, and can not determine the problem of suitable RRM measuring set element; Thus complete the process of switching smoothly fast.
Accompanying drawing explanation
Fig. 1 is the flow chart of the collocation method of RRM measuring set in the present invention under a kind of multipoint cooperative;
Fig. 2 is the detail flowchart carrying out channel measurement in the present invention under a kind of CoMP;
Fig. 3 is the network design schematic diagram in the present invention under a kind of CoMP;
Fig. 4 is the structural representation of a kind of base station in the present invention.
embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described in further detail.
The invention discloses the collocation method of the RRM measuring set under a kind of multipoint cooperative, when this method solving that UE moves between the node of different shared same cell IDs under CoMP, UE cannot locate, and can not determine the problem of suitable RRM measuring set element.
In the present invention, under described CoMP pattern, namely base station is the node in CoMP region.
Fig. 1 is the flow chart of the collocation method of RRM measuring set in the present invention under a kind of multipoint cooperative; Wherein, the node under each CoMP region has unique node identification.As shown in Figure 1,
Step 101, base station reports according to the measurement of UE determines CoMP region, UE place and the CoMP region adjacent with CoMP region, UE place.
Step 102, base station is that UE configures RRM measuring set according to determined each CoMP region; This RRM measuring set comprises: the node identification of all nodes in the node identification of all nodes in CoMP region, UE place and the CoMP region adjacent with CoMP region, UE place.
Step 103, the RRM measuring set that UE configures according to base station carries out channel measurement.
In an embodiment of the present invention, the node in described CoMP region has unique node identification, for distinguishing nodes different in the CoMP region at UE place and adjacent area.
In a kind of specific embodiment of the present invention, if when the cell ID of CoMP region interior nodes is not identical, then using the node identification of cell ID as described node.
In another kind of specific embodiment of the present invention, if when the cell ID of multiple node is identical in CoMP region, multiple nodes with same cells mark is used and specifically identifies as node identification.Be specially, in the cell ID situation that macro base station is shared in micro-base station, macro base station is identical with the cell ID of micro-base station, then use the cell ID of macro base station as the node identification of macro base station in CoMP region, use the sequence number beyond cell ID as the node identification of micro-base station, or after described cell ID, increase the node identification of different suffix as Microcell.
Fig. 2 is the detail flowchart carrying out channel measurement in the present invention under a kind of CoMP, as shown in Figure 2,
Step 201, the first access network of UE.In step 201, UE restarts Network with Random Multiple Access System after roaming.
Step 202, UE, according to the measurement result of self, sends measurement report to base station.
Step 203, base station configures RRM measuring set to UE.In described RRM measuring set, comprise the node identification of all nodes in CoMP region, UE place, also comprise the node identification of all nodes in the CoMP region adjacent with the CoMP region at described UE place.
In step 203, base station reports according to the measurement of UE and determines CoMP region, UE place and the CoMP region adjacent with CoMP region, UE place; Be specially: report according to measurement the CoMP region determining UE place, and determine the CoMP region adjacent with CoMP region, UE place according to the CoMP region at UE place.Described adjacent CoMP region is specially, the CoMP region adjacent geographically with the current C oMP region at UE place.Described adjacent area has one or more, comprises all adjacent C oMP regions and the CoMP region at UE place in described measuring set.
The RRM measuring set that UE configures according to base station carries out channel measurement.
Step 204, the position of UE changes.Namely UE moves in a network.In step 204, UE may move within the macro base station in a CoMP region, or move between the macro base station in a CoMP region and micro-base station, or move between micro-base station in a CoMP region, or move between multiple CoMP region.
Step 205, UE sends measurement and reports.In step 205, after the position of UE changes, need to resend measurement and report, to detect the current location of UE, and determine the CoMP region at UE place.
Step 206, base station reports the current location calculating UE according to the measurement of UE, and determines the CoMP region at UE place.If the position at the current location calculating UE and place is not before in same CoMP region, then determine that the move mode of UE is move between CoMP region; If the position at the current location calculating UE and place is before in same CoMP region, then determine that the move mode of UE is movement CoMP region in.
If UE moves between CoMP region, then carry out step 207; If UE moves in CoMP region, then carry out step 209.
Step 207, if UE moves between CoMP region, base station upgrades old RRM measuring set.In step 207, base station reports the CoMP region determining UE place according to the measurement of UE, determine the CoMP region adjacent with CoMP region, UE place according to the CoMP region at UE place, the node identification of all nodes in the node identification of all nodes in the CoMP region at UE place and the CoMP region adjacent with CoMP region, UE place is configured to the RRM measuring set of UE.
In an embodiment of the present invention, when UE moves to the 2nd CoMP region from a CoMP region, the mode that base station reconfigures RRM measuring set is specially, base station reports the 2nd CoMP region determining UE place according to the measurement of UE, and the CoMP region adjacent with the 2nd CoMP region, base station is that UE configures new RRM measuring set according to the 2nd CoMP region determined; RRM measuring set before base station upgrades according to new RRM measuring set.
In described RRM measuring set, base station upgrade RRM measuring set time, using the node identification of all nodes in a CoMP region as upgrade an entirety.
Step 208, UE carries out channel measurement according to the RRM measuring set after renewal.
Step 209, if UE moves in CoMP region, base station does not reconfigure RRM measuring set; The subset of RRM measuring set is adjusted.
Step 210, UE carries out channel measurement according to the subset of RRM measuring set.In step 210, when moving between the different nodes of UE in single CoMP region, RRM measuring set does not need to upgrade, and only needs are according to the position of UE to the subset of described RRM measuring set, and measuring set, report set, transmission collection etc. as physical layer adjust accordingly.Can ensure like this RRM measuring set configuration and increase delete wait operate can not take too much signal resource.Wherein, these set such as the measuring set of physical layer or report set or transmission collection are the subsets determined based on RRM measuring set, are used for carrying out concrete channel measurement, need certain signaling consumption, generally little than RRM measuring set; RRM measuring set needs to remain stable to a certain extent, and the change that the more important thing is real-time of the measuring set of the physical layer of correspondence, even if therefore RRM measuring set is constant, the measuring set of corresponding physical layer may also can change.
In an embodiment of the present invention, when UE moves in CoMP region, signal transmission power node is within the specific limits chosen according to the geographical position of UE in base station, and selected Joint Enterprise is become physical layer measuring set, and described physical layer measuring set is the subset based on RRM measuring set.Channel measurement is carried out according to described physical layer measuring set.Be specially: when UE moves in CoMP region, UE chooses the node that in the CoMP region at place, signal transmission power is maximum, with the maximum node of peak signal transmitting power for benchmark, chooses all nodes of difference within the scope of 3db of signal transmission power; Selected Joint Enterprise is become physical layer measuring set.UE carries out channel measurement operation according to described physical layer measuring set.
In an embodiment of the present invention, the RRM measuring set of correspondence is sent to UE by high-level signaling by base station.
Fig. 3 is the network design schematic diagram in the present invention under a kind of CoMP, and as shown in Figure 3, using the coverage of the 1st macro base station as the first collaboration region, wherein, the first collaboration region comprises: the 1st macro base station, the 1st micro-base station, the 2nd micro-base station, the 3rd micro-base station.In like manner, the coverage of the 2nd macro base station is as the second collaboration region; The coverage of the 3rd macro base station is as the 3rd collaboration region, and the coverage of the 4th macro base station is as the 4th collaboration region.
Macro base station and the micro-base station under oneself covering, by Fiber connection, ensure that the signaling data of Large Copacity low time delay is mutual; Being connected of time delay is can not ignore by the limited capacity of similar X2 interface between first collaboration region with the second collaboration region.Under this network design, UE is equally distributed, and that is, some UE is positioned at the center area of coverage of macro base station; Some UE is positioned at the center area of coverage of certain micro-base station; Some is positioned at the macro base station of same collaboration region and the overlapping coverage areas of micro-base station; Some is positioned at the covering edge of collaboration region.
RRM measuring set mainly in order to UE in the process of movement can fast monitored to corresponding coordinated regions, possible channel measurement can be carried out by reasonably configuring RRM measuring set when UE is positioned at coordinated regions time simultaneously, to assess the performance gain of the entirety that various possible CoMP transmission scheme can be brought, thus the scheme for whole system optimum is selected to carry out the scheduling of user.
The management of RRM measuring set mentioned in the present invention has been come by base station, and the base station accessed by UE configures RRM measuring set to UE.For the UE of initial access network, base station can according to the distribution of UE, and the information configuration of the node identification of all nodes in the CoMP region residing at present by UE is the element in the RRM measuring set that this UE is corresponding; Moreover, also can according to the position in this CoMP region, by searching for or obtain by searching routing table the information of the node identification of all nodes in all adjacent C oMP regions, then same by the information configuration of the node identification of all nodes in these adjacent C oMP regions in RRM measuring set corresponding to this UE; That is, comprise in the RRM measuring set of certain UE: the information of the node identification of all nodes in the current residing CoMP region of UE in the node identification of all nodes and all adjacent C oMP regions.Wherein, so-called adjacent referring to is bordered on geographically.Wherein, the configuration of described RRM measuring set is that base station is configured to UE by high-level signaling.Because measure a large amount of nodes by UE whether to exist, need to consume a large amount of power resources, and larger time delay may be caused, and generally the deployment of network side is all known for all base stations, even if some base station or node there occurs change, but always stable existence on long terms, and this change can complete the renewal of information by interactive information between base station.Configure the expense that RRM measuring set can save channel resource to UE by base station, more effectively utilize channel resource.
When UE is mobile between different coordinated regions, the RRM measuring set of this UE needs to carry out location updating.As when UE just moves to the second collaboration region from the first collaboration region,
The Data Control that first will maintain subframes by Interaction context information etc. connects, and when can after new coordinated regions are according to new transmission plan and base station interactive information, new RRM measuring set configures to UE by base station; Wherein, described new RRM measuring set comprises: all nodes of the second coordinated regions that UE is positioned at, the information of the node identification of all nodes in the 4th collaboration region adjacent with the second collaboration region, the first collaboration region; Namely satisfactory 4th collaboration region is added, by the information deletion of the node identification of original undesirable 3rd collaboration region, in a particular embodiment of the present invention, the attended operation of described RRM measuring set is using all node identifications in a collaboration region as the entirety upgraded.Like this, no matter which coordinated regions UE is positioned at, can obtain and self maintain corresponding transmission plan and between different coordinated regions, switch required RRM measuring set information, there is these information, can have the monitoring carrying out link-quality of target when switching or preparing to switch, the possible node being compared to exhaustive measurement all improves efficiency.
In mobile in the coverage of the node different in single coordinated regions of UE, RRM measuring set does not need to upgrade, only need to adjust accordingly other physical layer measuring set or report set or transmission collection etc. according to the position of UE, like this, can ensure RRM measuring set configuration and increase delete wait operate can not take too much signal resource.Wherein, the described position according to UE is specially physical layer measuring set, on the basis of described RRM measuring set, obtains the node of signal transmission power in specified scope, carries out channel measurement operation for described node.In schematic diagram as shown in Figure 3, for the UE_1 of the first coordinated regions, the node that its physical layer measuring set comprises may be the 1st macro base station and the 1st micro-base station, if and this UE moves to the position residing for UE_3, the element of its physical layer measuring set will be adjusted to the 1st macro base station and the 2nd micro-base station accordingly.
Wherein, RRM measuring set is that base station is safeguarded for each UE, is configured to UE by high-level signaling.
Present invention also offers a kind of base station, when this base station solves that UE moves between the node of different shared same cell IDs under CoMP, UE cannot locate, and can not determine the problem of suitable RRM measuring set element.
The invention discloses a kind of base station, described base station has unique node identification.Fig. 4 is the structural representation of a kind of base station in the present invention, as shown in Figure 4, wherein,
Described base station comprises: receiver module 401, control module 402;
Receiver module 401, the measurement sent for receiving UE reports, and the measurement of the UE received is reported and sends to control module 402;
Control module 402, the measurement for the UE sent according to receiver module 401 reports, and determines the CoMP region at described UE place and the CoMP region adjacent with CoMP region, described UE place; Be that UE configures RRM measuring set according to determined each CoMP region; This RRM measuring set comprises: the node identification of all nodes in the node identification of all nodes in CoMP region, UE place and the CoMP region adjacent with CoMP region, UE place; For described RRM measuring set is sent to UE.
In above-mentioned base station, when UE moves to the 2nd CoMP region from a CoMP region, this base station comprises further:
Described control module 402, for according to renewal RRM measuring set.
In above-mentioned base station, described receiver module 401, reports for the measurement receiving UE, received measurement is reported and sends to control module 402;
Control module 402, the measurement for sending according to receiver module 401 reports the 2nd CoMP region determining UE place, and the CoMP region adjacent with the 2nd CoMP region; For being that UE configures new RRM measuring set according to the 2nd CoMP region determined; For according to new RRM measuring set upgrade before RRM measuring set.
In above-mentioned base station, described control module 402, in described RRM measuring set, using the node identification of all nodes in a CoMP region as the entirety upgraded.
In above-mentioned base station, when UE moves in CoMP region, the RRM measuring set that control module 402 configures is constant; Control module 402 for, the subset of RRM measuring set is adjusted
Method and technology scheme provided by the invention, is compared to based on single subdistrict and neighbor cell configuration RRM measuring set thereof, is more applicable to this application scenarios based on coordinated regions of CoMP.For the heterogeneous network identified for there being different districts is disposed, if based on community, can cause the renewal of RRM measuring set more frequently, the signaling consumption caused is larger; For the heterogeneous network deployment of shared cell ID, if based on node, first be the problem how identifying different nodes, because cell ID is all the same, even if distinguished different nodes by giving the different resource of different Joint Enterprise, first cause larger resource overhead, secondly also can face frequent hand off signaling problem too much alternately equally, thus increase the burden to whole system.
In sum, the invention provides collocation method and the base station of the RRM measuring set under a kind of multipoint cooperative; In technical scheme provided by the invention, the node under each CoMP region has unique node identification, and base station reports according to the measurement of UE determines CoMP region, UE place and the CoMP region adjacent with CoMP region, UE place; Base station is that UE configures RRM measuring set according to determined each CoMP region; This RRM measuring set comprises: the node identification of all nodes in the node identification of all nodes in CoMP region, UE place and the CoMP region adjacent with CoMP region, UE place; The RRM measuring set that UE configures according to base station carries out channel measurement.When method provided by the invention solves that UE moves between the node of different shared same cell IDs under CoMP, UE cannot locate, and can not determine the problem of suitable RRM measuring set element, thus completes the process of switching fast smoothly.
The foregoing is only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.All any amendments done within the spirit and principles in the present invention, equivalent replacement, improvement etc., be all included in protection scope of the present invention.
Claims (6)
1. a collocation method for the RRM RRM measuring set under multipoint cooperative CoMP, is characterized in that, the node under each CoMP region has unique node identification, and the method comprises:
Base station reports according to the measurement of UE determines CoMP region, UE place and the CoMP region adjacent with CoMP region, UE place;
Base station is that UE configures RRM measuring set according to determined each CoMP region; This RRM measuring set comprises: the node identification of all nodes in the node identification of all nodes in CoMP region, UE place and the CoMP region adjacent with CoMP region, UE place;
The RRM measuring set that UE configures according to base station carries out channel measurement;
When UE moves to the 2nd CoMP region from a CoMP region, the method comprises further:
Base station upgrades the RRM measuring set of UE.
Wherein, when UE moves to the 2nd CoMP region from a CoMP region, the RRM measuring set that base station upgrades UE comprises:
Base station reports the 2nd CoMP region determining UE place according to the measurement of UE, and the CoMP region adjacent with the 2nd CoMP region, and base station is that UE configures new RRM measuring set according to the 2nd CoMP region determined,
RRM measuring set before base station upgrades according to new RRM measuring set.
2. method according to claim 1, is characterized in that, described base station is comprised by the RRM measuring set before new RRM measuring set upgrades:
In described RRM measuring set, the node identification of all nodes in a CoMP region is as the entirety upgraded.
3. method according to claim 1, is characterized in that,
When UE moves in CoMP region, the RRM measuring set of UE is constant; The subset of RRM measuring set is adjusted.
4. a base station, is characterized in that, described base station has unique node identification, wherein,
Described base station comprises: receiver module, control module;
Receiver module, the measurement sent for receiving UE reports, and the measurement of the UE received is reported and sends to control module;
Control module, the measurement for the UE sent according to receiver module reports, and determines the CoMP region at described UE place and the CoMP region adjacent with CoMP region, described UE place; Be that UE configures RRM measuring set according to determined each CoMP region; This RRM measuring set comprises: the node identification of all nodes in the node identification of all nodes in CoMP region, UE place and the CoMP region adjacent with CoMP region, UE place; For described RRM measuring set is sent to UE;
When UE moves to the 2nd CoMP region from a CoMP region, this base station comprises further: described control module, for according to renewal RRM measuring set.
Described receiver module, reports for the measurement receiving UE, received measurement is reported and sends to control module;
Control module, the measurement for sending according to receiver module reports the 2nd CoMP region determining UE place, and the CoMP region adjacent with the 2nd CoMP region; For being that UE configures new RRM measuring set according to the 2nd CoMP region determined; For according to new RRM measuring set upgrade before RRM measuring set.
5. base station according to claim 4, is characterized in that,
Described control module, in described RRM measuring set, using the node identification of all nodes in a CoMP region as the entirety upgraded.
6. base station according to claim 5, is characterized in that,
When UE moves in CoMP region, the RRM measuring set that control module configures is constant;
Control module is used for, and adjusts the subset of RRM measuring set.
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| Management of CoMP and RRM measurement set;MediaTek Inc.;《3GPP TSG-RAN WG1 #68,R1-120627》;20120210;全文 * |
| Text proposal for standard impacts and design principles of CoMP in Rel-11;Huawei, Hisilicon;《3GPP TSG RAN WG1 meeting #66,R1-112042》;20110826;第2节和第3.1节 * |
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| CN102612070A (en) | 2012-07-25 |
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