CN102802190B - A kind of multipoint cooperative system and its measurement collocation method - Google Patents
A kind of multipoint cooperative system and its measurement collocation method Download PDFInfo
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Abstract
The present invention discloses a kind of multipoint cooperative system and its measurement collocation method, and the method includes：Serving cell is the UE configurating channel quality uploading thresholdings being initially accessed；UE carries out the channel quality measurement of adjacent area, and reports the adjacent area of thresholding to report Serving cell more than or equal to channel quality SINR value；Serving cell selecting collaboration cell from the adjacent area that UE is reported, and be that UE configures CoMP metrical informations according to the cooperation cell selected；UE carries out CoMP measurements according to CoMP metrical informations, and the result measured according to CoMP, and SINR value is continuously reported the cooperation cell of thresholding less than channel quality, needs removal list to report Serving cell by multipoint cooperative.Technology according to the present invention scheme, can realize the measurement configuration of cooperation cell collection in CoMP system.
Description
Technical Field
The present invention relates to an Advanced Long Term Evolution (LET-a) system, and in particular, to a multipoint coordination system and a measurement configuration method thereof.
Background
In the existing mobile communication system, the neighbor cell interference is a main cause affecting the edge throughput, and for a Long Term Evolution (LTE) system, the neighbor cell interference is particularly prominent. With the performance ind mutex proposed by the International Telecommunications Union (ITU) for the International mobile telecommunication Advanced (IMT-a) system, it is a hot issue to solve the problem of neighboring cell interference in the LTE-Advanced technology proposed by 3 GPP. The introduction of a coordinated Multi-Point (CoMP) technology in LTE-a has milestone significance for reducing interference in the neighboring cell and improving the quality of the signal received by the user.
In the 3GPP standard, concepts of a serving cell and a neighboring cell have been clearly defined; a cell that transmits broadcast information and Physical layer Control information to a User Equipment (UE) through a Physical Downlink Control Channel (PDCCH) is referred to as a serving cell, and a cell adjacent to the serving cell is referred to as an adjacent cell. In addition, concepts of cooperative users, a cooperative cell set, a main serving cell, an auxiliary cell, and the like are introduced, fig. 1 is a schematic diagram of a serving cell, a neighboring cell, and a cooperative cell set in the prior art, as shown in fig. 1, a cooperative user refers to a user with relatively large interference on a cell edge, and a cooperative cell set refers to a set of cells directly or indirectly participating in data transmission to a UE, including cells participating in decision making and scheduling processes; the service cell belongs to the cooperative cell set and is used as a main service cell for the main control cooperative user; the secondary cell belongs to the cooperative cell set, but not to the cooperative scheduling cell of the serving cell.
In a CoMP system, for a coordinated terminal UE, a coordinated cell of the coordinated terminal UE evolves from a single cell in an LTE technology to multiple cells for scheduling together, measurement configuration of a coordinated cell set is greatly different from measurement configuration during single cell scheduling, and currently, there is no technical scheme for measurement configuration in the CoMP system.
Disclosure of Invention
In view of the above, the present invention is directed to a multi-point cooperative system and a measurement configuration method thereof, which can implement measurement configuration of a cooperative cell set in the CoMP system.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the invention provides a measurement configuration method of a multipoint coordination system, which comprises the following steps:
a serving cell configures a channel quality reporting threshold for User Equipment (UE) which is initially accessed;
UE measures the channel quality of the adjacent cell, and reports the adjacent cell with the signal to interference plus noise ratio (SINR) value more than or equal to the channel quality reporting threshold to the service cell;
the method comprises the steps that a serving cell selects a cooperative cell from adjacent cells reported by UE, and configures multipoint cooperation (CoMP) measurement information for the UE according to the selected cooperative cell;
and the UE carries out CoMP measurement according to the CoMP measurement information, and reports the cooperative cell of which the SINR value is continuously smaller than the channel quality reporting threshold to the serving cell through a multi-point cooperation removal-needed list according to the CoMP measurement result.
In the above method, the method further comprises:
and the serving cell judges whether the removal-needed cooperation list is empty, if so, the processing is carried out according to the CoMP measurement result, and if not, the cooperating cell is reselected.
In the above method, the threshold for reporting channel quality configured by the serving cell for the initially accessed UE is:
when UE initially accesses to a service cell, the service cell configures measurement information and a channel quality reporting threshold for the UE; the measurement information includes an ID and an SINR value of a neighboring cell that the UE needs to measure, and a manner in which the UE reports information to the serving cell.
In the above method, the reporting of the neighboring cell whose SINR value is greater than or equal to the channel quality reporting threshold to the serving cell is:
UE reports the measured SINR value to the service cell; the reporting mode is a mode of reporting information carried in the measurement information configured by the serving cell.
In the above method, the serving cell selects a cooperative cell from neighboring cells reported by the UE, and configures CoMP measurement information for the UE according to the selected cooperative cell as follows:
after the UE enters the CoMP area, the serving cell selects a cooperative cell from the adjacent cells reported by the UE, and after the selection is finished, the serving cell informs the UE of finishing the channel quality reporting of the adjacent cells, configures CoMP measurement information for the UE and sends the CoMP measurement information to the UE; wherein the CoMP measurement information includes a coordinated multipoint addition modification list (CoMP toaddmodlist) and a coordinated multipoint removal list (CoMP to removelist).
In the above method, the method further comprises: the serving cell sends the channel quality reporting threshold to the UE again;
the content of the CoMP toaddmodlist is the ID of the cooperative cell that the UE needs to measure, and the content of the CoMP toaremodevilist is the ID of the cooperative cell deleted from the CoMP toaddmodlist compared with the last CoMP measurement information configured for the UE by the serving cell.
In the above method, the reporting of the SINR value of the cooperative cell continuously smaller than the channel quality reporting threshold to the serving cell through the multipoint cooperation removal-needed list is:
the UE sets a multipoint cooperation removal-required list (CoMPNeedToRemovList), and the UE includes the cooperative cells meeting the removal conditions of the cooperative cells in the CoMPNeedToRemovList and reports the cooperative cells to the serving cell; the removal condition of the cooperative cell is that the SINR value of the cooperative cell is smaller than a channel quality reporting threshold for a continuous period of time, and the reporting mode is a periodic reporting mode or an event reporting mode.
The present invention also provides a multipoint coordination system, comprising: a serving cell and a UE; wherein,
the serving cell is used for configuring a channel quality reporting threshold for the initially accessed UE, selecting a cooperative cell from neighboring cells reported by the UE, and configuring CoMP measurement information for the UE according to the selected cooperative cell;
and the UE is used for measuring the channel quality of the adjacent cell, reporting the adjacent cell with the SINR value being more than or equal to the channel quality reporting threshold to the serving cell, carrying out CoMP measurement according to the CoMP measurement information, and reporting the cooperative cell with the SINR value being continuously less than the channel quality reporting threshold to the serving cell through a multi-point cooperation removal-needed list according to the CoMP measurement result.
In the above system, the serving cell is further configured to determine whether the cooperation removal-needed list is empty, if so, perform processing according to a result of CoMP measurement, and if not, reselect the cooperation cell.
The invention provides a multipoint cooperation system and a measurement configuration method thereof.A serving cell configures a channel quality reporting threshold for UE (user equipment) initially accessed; UE measures the channel quality of the adjacent cell and reports the adjacent cell with SINR value greater than or equal to the channel quality reporting threshold to the service cell; the service cell selects a cooperative cell from adjacent cells reported by the UE, and configures CoMP measurement information for the UE according to the selected cooperative cell; the UE carries out CoMP measurement according to the CoMP measurement information, reports the cooperative cells of which the SINR values are continuously smaller than the channel quality reporting threshold to the serving cell through a multi-point cooperation removal-needed list according to the CoMP measurement result, can realize the measurement configuration of a cooperative cell set in a CoMP system, and fills up the blank of the current technical scheme aiming at the aspect of the measurement configuration in the CoMP system; in addition, configuring a channel quality reporting threshold for the UE which is initially accessed; the UE reports the neighbor cell with the SINR value more than or equal to the channel quality reporting threshold to the serving cell, and the neighbor cell with the SINR value less than the channel quality reporting threshold does not report to the serving cell, so that the signaling communication quality between the UE and the serving cell in the CoMP system can be reduced, and the data throughput of the system can be improved.
Drawings
Fig. 1 is a schematic diagram of a serving cell, a neighboring cell, and a cooperative cell set in the prior art;
FIG. 2 is a flowchart illustrating a measurement configuration method for implementing a coordinated multi-point system according to the present invention;
fig. 3 is a schematic cell diagram of a first embodiment of a measurement configuration method for implementing a coordinated multiple point system according to the present invention;
fig. 4 is a schematic cell diagram of a second embodiment of a measurement configuration method for implementing a coordinated multiple point system according to the present invention;
fig. 5 is a schematic cell diagram of a third embodiment of a measurement configuration method for implementing a coordinated multiple point system according to the present invention;
fig. 6 is a schematic cell diagram of a fourth embodiment of a measurement configuration method for implementing a coordinated multiple point system according to the present invention;
fig. 7 is a schematic structural diagram of a multipoint coordination system implemented by the invention.
Detailed Description
The basic idea of the invention is: a serving cell configures a channel quality reporting threshold for the UE which is initially accessed; UE measures the channel quality of the adjacent cell and reports the adjacent cell with SINR value greater than or equal to the channel quality reporting threshold to the service cell; the service cell selects a cooperative cell from adjacent cells reported by the UE, and configures CoMP measurement information for the UE according to the selected cooperative cell; and the UE carries out CoMP measurement according to the CoMP measurement information, and reports the cooperative cell of which the SINR value is continuously smaller than the channel quality reporting threshold to the serving cell through a multi-point cooperation removal-needed list according to the CoMP measurement result.
The invention is further described in detail below with reference to the drawings and the specific embodiments.
The invention provides a measurement configuration method of a multipoint coordination system, fig. 2 is a flow diagram of the measurement configuration method of the multipoint coordination system, and as shown in fig. 2, the method comprises the following steps:
step 201, a serving cell configures a channel quality reporting threshold for an initially accessed UE;
specifically, when the UE initially accesses the serving cell, the serving cell configures measurement information for the UE, where the configured measurement information includes an ID of a neighboring cell that the UE needs to measure, information of the neighboring cell that needs to measure, a manner in which the UE reports information to the serving cell, and the like; in this embodiment, the information of the neighboring cell to be measured is a Signal to Interference plus Noise Ratio (SINR) value reflecting the channel quality;
in addition, the serving cell also needs to configure a channel quality reporting threshold for the UE, and optionally, may configure a cell for the UE, where the cell is used to record and store the channel quality reporting threshold.
Step 202, UE measures the channel quality of the adjacent cell and reports the adjacent cell with SINR value greater than or equal to the channel quality reporting threshold to the service cell;
specifically, the UE performs channel quality measurement of the neighboring cell according to the measurement information configured by the serving cell, that is, measures an SINR value of the neighboring cell, and determines the measured SINR value of the neighboring cell and a channel quality reporting threshold configured by the serving cell, and the UE only reports the neighboring cell of which the SINR value is greater than or equal to the channel quality reporting threshold to the serving cell; the reporting mode is a mode of reporting information carried in measurement information configured by the serving cell, and for example, the reporting mode may be reported to the serving cell through a Physical Uplink Control Channel (PUCCH) message; here, the neighboring cell whose SINR value is less than the channel quality reporting threshold will not report to the serving cell, so that the signaling communication quality between the UE and the serving cell in the CoMP system can be reduced, which is beneficial to improving the system data throughput.
Step 203, the serving cell selects a cooperative cell from neighboring cells reported by the UE, and configures CoMP measurement information for the UE according to the selected cooperative cell;
specifically, after the UE enters the CoMP area, the serving cell selects a cooperative cell from neighboring cells reported by the UE, and after the selection is finished, the serving cell is called a main serving cell of the cooperative cell set, and at this time, the serving cell notifies the UE of finishing the Channel quality reporting of the neighboring cells through a Physical Downlink Control Channel (PDCCH) message, and at the same time, the serving cell configures CoMP measurement information for the UE, and sends the CoMP measurement information to the UE through a reconfiguration message; wherein the CoMP measurement information includes a coordinated multipoint addition modification list (CoMP toaddmodlist) and a coordinated multipoint removal list (CoMP to removelist); the content of the CoMP toaddmodlist is the ID of the cooperative cell that the UE needs to measure, and the content of the CoMP toaremodevilist is the ID of the cooperative cell deleted from the CoMP toaddmodlist compared with the CoMP measurement information configured for the UE by the serving cell last time; for example, the CoMP toaddmodlist includes cooperative cells #4, #5, #6, and #7, and the CoMP toaddmodlist in the last time the serving cell configured the CoMP measurement information for the UE includes cooperative cells #3, #4, #5, and #6, and the CoMP toremovelist includes cooperative cell # 3;
in addition, the CoMP measurement information configured by the serving cell for the UE may further include a cell addition modification list (celltoaddmodlist), a cell removal list (celltoaremovelist), and the like, where the CoMP measurement information includes the two lists, and the operation performed by the UE according to the two lists also belongs to the prior art, and is not described herein again;
optionally, the serving cell may further send the channel quality reporting threshold to the UE again, so as to prevent the UE from not storing the previously received channel quality reporting threshold, or storing but being deleted due to long-time non-use, and when the UE performs CoMP measurement or provides a neighboring cell for the serving cell next time, the UE may perform screening of the cooperative cell or the neighboring cell by using the channel quality reporting threshold.
Step 204, the UE performs CoMP measurement according to the CoMP measurement information, and reports the cooperative cell of which the SINR value is continuously smaller than the channel quality reporting threshold to the serving cell through a multi-point cooperation removal-needed list according to the CoMP measurement result;
specifically, after receiving CoMP measurement information sent by the serving cell, the UE updates the original measurement information to CoMP measurement information, and starts CoMP measurement, that is, measures an SINR value of the cooperating cell in the CoMP toaddmodlist; setting a coordinated multi-point (CoMPNeedToRemoveList) and reporting the coordinated cells meeting the coordinated cell removal condition to the serving cell by the UE in the CoMPNeedToRemoveList;
the cooperative cell removal condition means that the SINR value of the cooperative cell is smaller than a channel quality reporting threshold in a continuous period of time; the removal condition and a period of time of the cooperative cell may be that the serving cell is configured for the UE in advance, for example, the period of time is 256ms, and a period of SINR value measurement by the UE is 10ms, so that if the SINR value of the cooperative cell measured by the UE is less than the channel quality reporting threshold for 26 consecutive times, the UE reports the cooperative cell to the serving cell;
here, the UE reports the cooperative cell whose SINR value is continuously smaller than the channel quality reporting threshold to the serving cell by using two manners, namely a periodic reporting manner and an event reporting manner, where the event reporting manner refers to that the UE reports the cooperative cell to the serving cell as long as one cooperative cell whose SINR value is continuously smaller than the channel quality reporting threshold occurs.
Step 205, the serving cell determines whether the coordination removal-needed list is empty, if yes, processing is performed according to the result of CoMP measurement, if not, the coordination cell needs to be reselected, and step 203 is executed;
specifically, after receiving the CoMP request to remove list reported by the UE, the serving cell determines whether the CoMP request to remove list is empty, and if so, indicates that there is no cooperating cell that needs to be adjusted, and performs processing according to the CoMP measurement result, where the processing flow belongs to a prescribed flow in the existing LTE protocol and is not described herein again; if not, that is, the comp needle to remove list is not empty, the serving cell needs to adjust the cooperating cell set according to the cooperating cell in the comp needle to remove list, that is, reselect the cooperating cell, and perform step 203.
Example one
When the UE moves in the serving cell and the SINR value of a certain cooperating cell meets the cooperating cell removal condition, the UE reports the cooperating cell to the serving cell, as shown in fig. 3, the UE moves in the serving cell #1, the SINR value of the cooperating cell #3 will meet the cooperating cell removal condition, the cooperating cell #7 will meet the requirement for selecting the cooperating cell, the serving cell #1 will perform CoMP measurement processing and simultaneously reselect the cooperating cell, and send updated CoMP measurement information to the UE.
Example two
As shown in fig. 4, when the UE moves from cell #1 to cell #2, the serving cell of the cooperating cell changes from cell #1 to cell #2, and the UE reports the CoMP measurement result of the change of the cooperating cell to serving cell #2, at this time, the cooperating cell is subjected to handover processing, reselects the cooperating cell, and the new serving cell sends updated CoMP measurement information to the UE.
EXAMPLE III
As shown in fig. 5, when the UE moves from cell #1 to cell #2, the serving cell of the cooperating cell changes from cell #1 to cell #2, and the SINR value of the cooperating cell #3 satisfies the cooperating cell removal condition, the UE reports the CoMP measurement result of the removal and change of the cooperating cell to the serving cell #2, at this time, the cooperating cell performs handover processing, reselects the cooperating cell, and the new serving cell sends updated CoMP measurement information to the UE.
Example four
As shown in fig. 6, when the UE moves from the edge of the serving cell #1 to the center of the serving cell #1, the UE moves out of the coordination area, all the coordinating cells will satisfy the coordinating cell removal condition, the UE reports the CoMP measurement result of the CoMP measurement that the UE moves out of the coordination area to the serving cell #1, at this time, the serving cell #1 will perform CoMP measurement processing, and at the same time, reselect the coordinating cell, and issue initial measurement information to the UE, and the subsequent processing flow may refer to fig. 2.
EXAMPLE five
When the reporting mode included in the configured CoMP measurement information is a periodic reporting mode, the UE will perform periodic reporting of the CoMP measurement result, and at this time, neither change handover processing of the serving cell nor removal processing of the cooperating cell is required.
In order to implement the above method, the present invention further provides a multipoint coordination system, fig. 7 is a schematic structural diagram of the multipoint coordination system implemented by the present invention, as shown in fig. 7, the system includes: serving cell 71 and UE 72; wherein,
the serving cell 71 is configured to configure a channel quality reporting threshold for the initially accessed UE72, and is further configured to select a cooperative cell from neighboring cells reported by the UE72, and configure CoMP measurement information for the UE72 according to the selected cooperative cell;
the UE72 is configured to perform channel quality measurement of the neighboring cell, and report the neighboring cell whose SINR value is greater than or equal to the channel quality reporting threshold to the serving cell 71, and also configured to perform CoMP measurement according to CoMP measurement information, and report a coordinated cell whose SINR value is continuously less than the channel quality reporting threshold to the serving cell 71 through a multi-point coordination required removal list according to a result of the CoMP measurement.
The serving cell 71 is further configured to determine whether the cooperation removal-needed list is empty, if so, perform processing according to a CoMP measurement result, and if not, reselect a cooperation cell.
The serving cell 71 configures a channel quality reporting threshold for the initially accessed UE72 as follows: when UE initially accesses to a service cell, the service cell configures measurement information and a channel quality reporting threshold for the UE; the measurement information includes an ID of a neighboring cell to be measured by the UE, a signal to interference plus noise ratio (SINR) value, and a manner in which the UE reports information to the serving cell.
The reporting of the neighboring cell with the SINR value greater than or equal to the channel quality reporting threshold to the serving cell 71 is:
UE reports the measured SINR value to the service cell; the reporting mode is a mode of reporting information carried in the measurement information configured by the serving cell.
The serving cell 71 selects a cooperative cell from the neighboring cells reported by the UE72, and configures CoMP measurement information for the UE72 according to the selected cooperative cell as follows: after the UE enters the CoMP area, the serving cell selects a cooperative cell from the adjacent cells reported by the UE, and after the selection is finished, the serving cell informs the UE of finishing the channel quality reporting of the adjacent cells, configures CoMP measurement information for the UE and sends the CoMP measurement information to the UE; wherein the CoMP measurement information includes a coordinated multipoint addition modification list (CoMP toaddmodlist) and a coordinated multipoint removal list (CoMP to removelist).
The reporting of the SINR value of the cooperative cell continuously smaller than the channel quality reporting threshold to the serving cell through the multipoint cooperation required removal list 71 is: the UE sets a multipoint cooperation removal-required list (CoMPNeedToRemovList), and the UE includes the cooperative cells meeting the removal conditions of the cooperative cells in the CoMPNeedToRemovList and reports the cooperative cells to the serving cell; the removal condition of the cooperative cell is that the SINR value of the cooperative cell is smaller than a channel quality reporting threshold for a continuous period of time, and the reporting mode is a periodic reporting mode or an event reporting mode.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, and any modifications, equivalents, improvements, etc. that are within the spirit and principle of the present invention should be included in the present invention.
Claims (9)
1. A measurement configuration method of a multipoint coordination system is characterized by comprising the following steps:
a serving cell configures a channel quality reporting threshold for User Equipment (UE) which is initially accessed;
UE measures the channel quality of the adjacent cell, and reports the adjacent cell with the signal to interference plus noise ratio (SINR) value more than or equal to the channel quality reporting threshold to the service cell;
the method comprises the steps that a serving cell selects a cooperative cell from adjacent cells reported by UE, and configures multipoint cooperation (CoMP) measurement information for the UE according to the selected cooperative cell;
and the UE carries out CoMP measurement according to the CoMP measurement information, and reports the cooperative cell of which the SINR value is continuously smaller than the channel quality reporting threshold to the serving cell through a multi-point cooperation removal-needed list according to the CoMP measurement result.
2. The method of claim 1, further comprising:
and the serving cell judges whether the multipoint cooperation removal-needed list is empty, if so, the coordinated cell is processed according to the CoMP measurement result, and if not, the coordinated cell is reselected.
3. The method of claim 1, wherein the serving cell configuring the channel quality reporting threshold for the initially accessed UE is:
when UE initially accesses to a service cell, the service cell configures measurement information and a channel quality reporting threshold for the UE; the measurement information includes an ID and an SINR value of a neighboring cell that the UE needs to measure, and a manner in which the UE reports information to the serving cell.
4. The method of claim 3, wherein the reporting the neighbor cell whose SINR value is greater than or equal to the channel quality reporting threshold to the serving cell is:
UE reports the measured SINR value to the service cell; the reporting mode is a mode of reporting information carried in the measurement information configured by the serving cell.
5. The method of claim 1, wherein the serving cell selects a cooperative cell from neighboring cells reported by the UE, and the configuring CoMP measurement information for the UE according to the selected cooperative cell comprises:
after the UE enters the CoMP area, the serving cell selects a cooperative cell from the adjacent cells reported by the UE, and after the selection is finished, the serving cell informs the UE of finishing the channel quality reporting of the adjacent cells, configures CoMP measurement information for the UE and sends the CoMP measurement information to the UE; wherein the CoMP measurement information includes a coordinated multipoint addition modification list (CoMP toaddmodlist) and a coordinated multipoint removal list (CoMP to removelist).
6. The method of claim 5,
the method further comprises the following steps: the serving cell sends the channel quality reporting threshold to the UE again;
the content of the CoMP toaddmodlist is the ID of the cooperative cell that the UE needs to measure, and the content of the CoMP toaremodevilist is the ID of the cooperative cell deleted from the CoMP toaddmodlist compared with the last CoMP measurement information configured for the UE by the serving cell.
7. The method of claim 1, wherein the reporting of the SINR value of the cooperative cell continuously smaller than the channel quality reporting threshold to the serving cell through the multipoint cooperation required removal list is:
the UE sets a multipoint cooperation removal-required list (CoMPNeedToRemovList), and the UE includes the cooperative cells meeting the removal conditions of the cooperative cells in the CoMPNeedToRemovList and reports the cooperative cells to the serving cell; the removal condition of the cooperative cell is that the SINR value of the cooperative cell is smaller than a channel quality reporting threshold for a continuous period of time, and the reporting mode is a periodic reporting mode or an event reporting mode.
8. A multipoint coordination system, comprising: a serving cell and a UE; wherein,
the serving cell is used for configuring a channel quality reporting threshold for the initially accessed UE, selecting a cooperative cell from neighboring cells reported by the UE, and configuring CoMP measurement information for the UE according to the selected cooperative cell;
and the UE is used for measuring the channel quality of the adjacent cell, reporting the adjacent cell with the SINR value being more than or equal to the channel quality reporting threshold to the serving cell, carrying out CoMP measurement according to the CoMP measurement information, and reporting the cooperative cell with the SINR value being continuously less than the channel quality reporting threshold to the serving cell through a multi-point cooperation removal-needed list according to the CoMP measurement result.
9. The coordinated multi-point system of claim 8, wherein the serving cell is further configured to determine whether the coordinated multi-point removal required list is empty, if so, perform processing according to a result of CoMP measurement, and if not, reselect a coordinated cell.
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| CN102917464A (en) * | 2012-09-28 | 2013-02-06 | 新邮通信设备有限公司 | Multi-cell cooperative scheduling method |
| CN104283621A (en) * | 2013-07-12 | 2015-01-14 | 普天信息技术研究院有限公司 | A channel transmission quality monitoring method |
| CN104754665B (en) * | 2013-12-30 | 2018-05-25 | 上海诺基亚贝尔股份有限公司 | A kind of switching method and equipment being used for user equipment under CoMP patterns |
| CN106604311B (en) * | 2015-10-13 | 2020-11-17 | 华为技术有限公司 | Method and device for selecting transmission node participating in coordinated multi-point transmission |
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| CN101888665B (en) * | 2009-05-13 | 2013-03-13 | 普天信息技术研究院有限公司 | Local scheduler-based multi-point cooperative transmission method |
| US8538482B2 (en) * | 2009-05-14 | 2013-09-17 | Lg Electronics Inc. | Apparatus and method for transmitting CoMP feedback information |
| CN101594644B (en) * | 2009-07-02 | 2010-12-29 | 西安电子科技大学 | Signaling interaction method supporting CoMP operation set option |
| US8570963B2 (en) * | 2009-10-26 | 2013-10-29 | Qualcomm Incorporated | Coordinated multi-point (CoMP) network and protocol architecture |
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2011
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| CN101873661A (en) * | 2009-04-27 | 2010-10-27 | 大唐移动通信设备有限公司 | Method, system and terminal for determining coordinate district in CoMP system |
| CN101938299A (en) * | 2009-06-29 | 2011-01-05 | 华为技术有限公司 | A method and device for determining a joint transmission cell |
| CN101965024A (en) * | 2009-07-21 | 2011-02-02 | 中兴通讯股份有限公司 | Report set measurement and trigger measurement report based method, system and user terminal (UE) |
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| WO2012159465A1 (en) | 2012-11-29 |
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