CN103096372B - A kind of method and apparatus for calculating beamforming factor in handoff procedure - Google Patents
A kind of method and apparatus for calculating beamforming factor in handoff procedure Download PDFInfo
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- CN103096372B CN103096372B CN201110341876.9A CN201110341876A CN103096372B CN 103096372 B CN103096372 B CN 103096372B CN 201110341876 A CN201110341876 A CN 201110341876A CN 103096372 B CN103096372 B CN 103096372B
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Abstract
The object of this invention is to provide a kind of method and apparatus for calculating beamforming factor in handoff procedure.Cell-of-origin is received from the measurement report that subscriber equipment sends, utilize this measurement report, calculate the beamforming factor of this subscriber equipment in Target cell, this is write handover request and is sent to Target cell, and according to the handoff response that this Target cell returns, send wireless heterogeneous networks reconfiguration request to this subscriber equipment; Subscriber equipment, according to this reconfiguration request, accesses this Target cell; This Target cell, according to this beamforming factor, adopts beam forming mode, sets up the communication connection with this subscriber equipment.Compared with prior art, in the present invention, cell-of-origin precomputes the beamforming factor of subscriber equipment in Target cell, this write handover request is also reported to Target cell, Target cell adopts beam forming mode accordingly, communication connection between foundation and subscriber equipment, thus simplify switching flow, improve the success rate of switching.
Description
Technical field
The present invention relates to communication technical field, particularly relating to a kind of technology for calculating beamforming factor in handoff procedure.
Background technology
In beam forming (beamforming) technology, as the key parameter of beam forming, beamforming factor (beamformingweight) can calculate according to the orientation angles of subscriber equipment.After subscriber equipment switches to Target cell (targetcell), due to beamforming factor can not be calculated immediately, therefore, subscriber equipment does not have the initial beam shaping factor to carry out configuration data, impact in the initial process switched, is sent efficiency and the success rate of data by this.
In prior art, the initial stage configuration data that some systems use diversity mode (diversitymode) switching.Such as, after subscriber equipment is linked into Target cell, this Target cell uses diversity mode, accidental access response (RandomAccessResponse is sent to subscriber equipment, RAR), subscriber equipment sends wireless heterogeneous networks and has reshuffled message (RadioResourceControlReconfigurationCompleteMessage) to this Target cell, to show that this subscriber equipment is successfully connected to this Target cell, subsequently, this Target cell is with diversity mode, physical downlink control channel (PhysicalDownlinkControlChannel is set up with this subscriber equipment, or physical down link sharing channel (PhysicalDownlinkSharedChannel PDCCH), PDSCH), and subscriber equipment sends and inquires after reference signal (SoundingReferenceSignal, SRS) report is to this Target cell, the physical layer of this Target cell is according to the parameter information of the subscriber equipment in this report, calculate beamforming factor, subsequently, again and between this subscriber equipment, carry out transport mode translations (TransmissionModeSwitch), by transport mode translations to beam forming mode, communication between foundation and this subscriber equipment.Visible, the method is too complicated, wastes the plenty of time and resource carrys out converting transmission pattern, and on the other hand, the performance adopting diversity mode to carry out transmitting is transmitted not as adopting the beam forming mode with certainty factor.
Therefore, how correctly to calculate the beamforming factor of subscriber equipment in Target cell in advance, thus simplify this switching flow, improve the success rate switched, become one of those skilled in the art's problem needing solution badly.
Summary of the invention
The object of this invention is to provide a kind of method and apparatus for calculating beamforming factor in handoff procedure.
According to an aspect of the present invention, provide a kind of method for realizing calculating beamforming factor in cell-of-origin in handoff procedure, wherein, the method comprises:
A is received from the measurement report that subscriber equipment sends, and wherein, described measurement report comprises the parameter information of described cell-of-origin and Target cell;
B sends handover request to described Target cell, and wherein, described handover request comprises the beamforming factor of described subscriber equipment in described Target cell;
C is received from the handoff response that described Target cell sends;
D, according to described handoff response, sends wireless heterogeneous networks reconfiguration request to described subscriber equipment.
According to another aspect of the present invention, additionally provide a kind of for the method realizing calculating beamforming factor in handoff procedure auxiliary in Target cell, wherein, the method comprises:
A is received from the handover request that cell-of-origin sends, and wherein, described handover request comprises the beamforming factor of subscriber equipment in Target cell;
B, according to described handover request, sets up and prepares with associating of described subscriber equipment;
C sends handoff response to described cell-of-origin;
D receives the access of described subscriber equipment;
E, according to described beamforming factor, adopts beam forming mode, sets up the communication connection with described subscriber equipment.
According to a further aspect of the invention, additionally provide a kind of for assisting the method realizing calculating beamforming factor in handoff procedure in a user device, wherein, the method comprises:
-send measurement report to cell-of-origin, wherein, described measurement report comprises the parameter information of described cell-of-origin and Target cell;
-be received from the wireless heterogeneous networks reconfiguration request that described cell-of-origin sends;
-according to described wireless heterogeneous networks reconfiguration request, access described Target cell.
According to a further aspect of the invention, additionally provide a kind of cell-of-origin for realizing calculating beamforming factor in handoff procedure, wherein, this equipment comprises:
Report receiving system, for being received from the measurement report that subscriber equipment sends, wherein, described measurement report comprises the parameter information of described cell-of-origin and Target cell;
Handover request dispensing device, for sending handover request to described Target cell, wherein, described handover request comprises the beamforming factor of described subscriber equipment in described Target cell;
Response receiving system, for being received from the handoff response that described Target cell sends;
Reconfiguration request dispensing device, for according to described handoff response, sends wireless heterogeneous networks reconfiguration request to described subscriber equipment.
According to another aspect of the present invention, additionally provide a kind of Target cell calculating beamforming factor for auxiliary realization in handoff procedure, wherein, this equipment comprises:
Handover request receiving system, for being received from the handover request that cell-of-origin sends, wherein, described handover request comprises the beamforming factor of subscriber equipment in Target cell;
Association apparatus for establishing, for according to described handover request, sets up and prepares with associating of described subscriber equipment;
Response dispensing device, for sending handoff response to described cell-of-origin;
Access receiving system, for receiving the access of described subscriber equipment;
Connection setup device, for according to described beamforming factor, adopts beam forming mode, sets up the communication connection with described subscriber equipment.
According to a further aspect of the invention, additionally provide a kind of subscriber equipment calculating beamforming factor for auxiliary realization in handoff procedure, wherein, this equipment comprises:
Report dispensing device, for sending measurement report to cell-of-origin, wherein, described measurement report comprises the parameter information of described cell-of-origin and Target cell;
Reconfiguration request receiving system, for being received from the wireless heterogeneous networks reconfiguration request that described cell-of-origin sends;
Community access device, for according to described wireless heterogeneous networks reconfiguration request, accesses described Target cell.
According to a further aspect of the invention, additionally providing a kind of system for realizing calculating beamforming factor in handoff procedure, comprising cell-of-origin described above, Target cell described above and subscriber equipment described above.
Compared with prior art, in the present invention, cell-of-origin precomputes the beamforming factor of subscriber equipment in Target cell, this write handover request is also reported to Target cell, Target cell adopts beam forming mode accordingly, communication connection between foundation and subscriber equipment, thus simplify switching flow, improve the success rate of switching.
Accompanying drawing explanation
By reading the detailed description done non-limiting example done with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:
Fig. 1 illustrates the equipment schematic diagram for calculating beamforming factor in handoff procedure according to one aspect of the invention;
Fig. 2 illustrates the method flow diagram for calculating beamforming factor in handoff procedure according to a further aspect of the present invention;
Fig. 3 illustrates the schematic diagram for calculating beamforming factor in handoff procedure in accordance with a preferred embodiment of the present invention.
In accompanying drawing, same or analogous Reference numeral represents same or analogous parts.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Fig. 1 illustrates the equipment schematic diagram for calculating beamforming factor in handoff procedure according to one aspect of the invention; Cell-of-origin comprises report receiving system 1011, handover request dispensing device 1012, response receiving system 1013 and reconfiguration request dispensing device 1014; Target cell comprises handover request receiving system 1021, association apparatus for establishing 1022, response dispensing device 1023, access receiving system 1024 and connection setup device 1025; Subscriber equipment comprises report dispensing device 1031, reconfiguration request receiving system 1032 and community access device 1033.
Cell-of-origin, to work in coordination between Target cell and each device of subscriber equipment, in handoff procedure, calculate beamforming factor to complete.Particularly, the report dispensing device 1031 in subscriber equipment sends measurement report to cell-of-origin, and wherein, described measurement report comprises the parameter information of described cell-of-origin and Target cell; Report receiving system 1011 in cell-of-origin is received from the measurement report that subscriber equipment sends, and wherein, described measurement report comprises the parameter information of described cell-of-origin and Target cell; Handover request dispensing device 1012 sends handover request to described Target cell, and wherein, described handover request comprises the beamforming factor of described subscriber equipment in described Target cell; Handover request receiving system 1021 in Target cell is received from the handover request that cell-of-origin sends, and wherein, described handover request comprises the beamforming factor of subscriber equipment in Target cell; Association apparatus for establishing 1022, according to described handover request, is set up and is prepared with associating of described subscriber equipment; Response dispensing device 1023 sends handoff response to described cell-of-origin; Response receiving system 1013 in cell-of-origin is received from the handoff response that described Target cell sends; Reconfiguration request dispensing device 1014, according to described handoff response, sends wireless heterogeneous networks reconfiguration request to described subscriber equipment; Reconfiguration request receiving system 1032 in subscriber equipment is received from the wireless heterogeneous networks reconfiguration request that described cell-of-origin sends; Community access device 1033, according to described wireless heterogeneous networks reconfiguration request, accesses described Target cell; Access receiving system 1024 in Target cell receives the access of described subscriber equipment; Connection setup device 1025, according to described beamforming factor, adopts beam forming mode, sets up the communication connection with described subscriber equipment.
Wherein, the report dispensing device 1031 in subscriber equipment sends measurement report to cell-of-origin, and wherein, described measurement report comprises the parameter information of described cell-of-origin and Target cell.Particularly, subscriber equipment is by the measurement to each community (comprising cell-of-origin, Target cell etc.), such as to the measurement of the signal strength signal intensity of each community, generate a measurement report, the parameter information of cell-of-origin and Target cell is included in this measurement report, as, the signal strength signal intensity reporting Target cell in this measurement report is greater than the signal strength signal intensity of this cell-of-origin, the information etc. switching to this Target cell wanted by this subscriber equipment, this measurement report, by the communication with cell-of-origin, is sent to this cell-of-origin by the report dispensing device 1031 on this subscriber equipment.
Report receiving system 1011 in cell-of-origin is received from the measurement report that subscriber equipment sends, and wherein, described measurement report comprises the parameter information of described cell-of-origin and Target cell.After receiving this measurement report, this cell-of-origin knows that this subscriber equipment is wanted to switch to this Target cell, and therefore, the Target cell of reporting in this measurement report is sent handover request by follow-up handover request dispensing device 1012.
Handover request dispensing device 1012 sends handover request to described Target cell, and wherein, described handover request comprises the beamforming factor of described subscriber equipment in described Target cell.Particularly, handover request dispensing device 1012 is by writing in the specific fields of handover request by this beamforming factor, as write in the specific fields of the standard information AS-ConfigIE of handover request, then the handover request this being contained beamforming factor is sent to Target cell.At this, this beamforming factor is calculated by this cell-of-origin.
Handover request receiving system 1021 in Target cell is received from the handover request that cell-of-origin sends, and wherein, described handover request comprises the beamforming factor of subscriber equipment in Target cell.After receiving this handover request, this Target cell is known has subscriber equipment will switch on it, has known the beamforming factor of this subscriber equipment in this Target cell simultaneously.
Association apparatus for establishing 1022, according to described handover request, is set up and is prepared with associating of described subscriber equipment.Particularly, the handover request of this Target cell received by this handover request receiving system 1021, sets up and prepare with associating between subscriber equipment, such as, prepares and transmission mode between subscriber equipment, prepares this subscriber equipment and access in which way.
Response dispensing device 1023 sends handoff response to described cell-of-origin.Particularly, establish with after the associating and prepare of this subscriber equipment at this crucial apparatus for establishing 1022, response dispensing device 1023 in this Target cell is by the communication with cell-of-origin, handoff response is sent to this cell-of-origin, to show that this Target cell has been ready to and connection establishment between subscriber equipment.
Response receiving system 1013 in cell-of-origin is received from the handoff response that described Target cell sends.
Reconfiguration request dispensing device 1014, according to described handoff response, sends wireless heterogeneous networks reconfiguration request to described subscriber equipment.Particularly, when response receiving system 1013 in this cell-of-origin receives this handoff response, this cell-of-origin has known that this Target cell is ready, therefore, reconfiguration request dispensing device 1014 on it is according to this handoff response, by the communication between subscriber equipment, wireless heterogeneous networks reconfiguration request is sent to this subscriber equipment.At this, this wireless heterogeneous networks reconfiguration request comprises the parameter information of Target cell.
Reconfiguration request receiving system 1032 in subscriber equipment is received from the wireless heterogeneous networks reconfiguration request that described cell-of-origin sends.
Community access device 1033, according to described wireless heterogeneous networks reconfiguration request, accesses described Target cell.Particularly, reconfiguration request receiving system 1032 in this subscriber equipment receives this wireless heterogeneous networks reconfiguration request, this community access device 1033 is according to the parameter information of the Target cell comprised described in this wireless heterogeneous networks reconfiguration request, as the cell ID of this Target cell, access this Target cell, as accessed this Target cell by Random Access Channel (RandomAccessChannel, RACH).
Access receiving system 1024 in Target cell receives the access of described subscriber equipment.
Connection setup device 1025, according to described beamforming factor, adopts beam forming mode, sets up the communication connection with described subscriber equipment.Particularly, beamforming factor included in the handover request of connection setup device 1025 in this Target cell received by this handover request receiving system 1021, adopt corresponding beam forming mode, to subscriber equipment generation accidental access response (RandomAccessResponse, RAR), subscriber equipment is after receiving this accidental access response, send wireless heterogeneous networks to this Target cell and reshuffle message (RadioResourceControlReconfigurationCompleteMessage), to show that this subscriber equipment is successfully connected to this Target cell, subsequently, beam forming mode is passed through in this Target cell, at physical downlink control channel (PhysicalDownlinkControlChannel, or physical down link sharing channel (PhysicalDownlinkSharedChannel PDCCH), PDSCH) on, data message is sent to this subscriber equipment.
Preferably (see Fig. 3), cell-of-origin also comprises factor calculation element (not shown), this factor calculation element is according to the parameter information of described cell-of-origin and described Target cell, and in conjunction with the parameter information of described subscriber equipment, calculate the beamforming factor of described subscriber equipment in described Target cell.Particularly, the report receiving system 1011 in cell-of-origin is received from the measurement report that subscriber equipment sends, and this cell-of-origin knows that this subscriber equipment is wanted to switch to this Target cell, subsequently, factor calculation element on it is from the configuration of wireless network, obtain the length of the distance AB of cell-of-origin and Target cell, utilize the positional information of this subscriber equipment and this cell-of-origin, calculate the distance AC of this subscriber equipment and this cell-of-origin, and the angle θ 1 folded by this distance AC and AB, further, according to the positional information of this subscriber equipment and this Target cell, calculate the distance CB of this subscriber equipment and this Target cell, and the angle θ 2 folded by this distance CB and AB, thus calculate the beamforming factor of this subscriber equipment in this Target cell, subsequently, handover request dispensing device 1012 in this cell-of-origin is by writing in the specific fields of handover request by this beamforming factor, as write in the specific fields of the standard information AS-ConfigIE of handover request, then the handover request this being contained beamforming factor is sent to Target cell.Target cell, according to this beamforming factor, adopts beam forming mode, the communication connection between foundation and this subscriber equipment.
Fig. 2 illustrates the method flow diagram for calculating beamforming factor in handoff procedure according to a further aspect of the present invention.
Cell-of-origin, to work in coordination between Target cell and each step of subscriber equipment, in handoff procedure, calculate beamforming factor to complete.Particularly, in step s 201, subscriber equipment sends measurement report to cell-of-origin, and wherein, described measurement report comprises the parameter information of described cell-of-origin and Target cell; Cell-of-origin is received from the measurement report that subscriber equipment sends, and wherein, described measurement report comprises the parameter information of described cell-of-origin and Target cell; In step S202, cell-of-origin sends handover request to described Target cell, and wherein, described handover request comprises the beamforming factor of described subscriber equipment in described Target cell; Target cell is received from the handover request that cell-of-origin sends, and wherein, described handover request comprises the beamforming factor of subscriber equipment in Target cell; In step S203, Target cell, according to described handover request, is set up and is prepared with associating of described subscriber equipment; In step S204, Target cell sends handoff response to described cell-of-origin; Cell-of-origin is received from the handoff response that described Target cell sends; In step S205, cell-of-origin, according to described handoff response, sends wireless heterogeneous networks reconfiguration request to described subscriber equipment; Subscriber equipment is received from the wireless heterogeneous networks reconfiguration request that described cell-of-origin sends; In step S206, subscriber equipment, according to described wireless heterogeneous networks reconfiguration request, accesses described Target cell; Target cell receives the access of described subscriber equipment; In step S207, Target cell, according to described beamforming factor, adopts beam forming mode, sets up the communication connection with described subscriber equipment.
In step s 201, subscriber equipment sends measurement report to cell-of-origin, and wherein, described measurement report comprises the parameter information of described cell-of-origin and Target cell.Particularly, subscriber equipment is by the measurement to each community (comprising cell-of-origin, Target cell etc.), such as to the measurement of the signal strength signal intensity of each community, generate a measurement report, the parameter information of cell-of-origin and Target cell is included in this measurement report, as, the signal strength signal intensity reporting Target cell in this measurement report is greater than the signal strength signal intensity of this cell-of-origin, the information etc. switching to this Target cell wanted by this subscriber equipment, in step s 201, this measurement report, by the communication with cell-of-origin, is sent to this cell-of-origin by subscriber equipment.
Cell-of-origin is received from the measurement report that subscriber equipment sends, and wherein, described measurement report comprises the parameter information of described cell-of-origin and Target cell.After receiving this measurement report, this cell-of-origin knows that this subscriber equipment is wanted to switch to this Target cell, and therefore, in subsequent step, the Target cell of reporting in this measurement report is sent handover request by this cell-of-origin.
In step S202, cell-of-origin sends handover request to described Target cell, and wherein, described handover request comprises the beamforming factor of described subscriber equipment in described Target cell.Particularly, in step S202, cell-of-origin is by writing in the specific fields of handover request by this beamforming factor, as write in the specific fields of the standard information AS-ConfigIE of handover request, then the handover request this being contained beamforming factor is sent to Target cell.At this, this beamforming factor is calculated by this cell-of-origin.
Target cell is received from the handover request that cell-of-origin sends, and wherein, described handover request comprises the beamforming factor of subscriber equipment in Target cell.After receiving this handover request, this Target cell is known has subscriber equipment will switch on it, has known the beamforming factor of this subscriber equipment in this Target cell simultaneously.
In step S203, Target cell, according to described handover request, is set up and is prepared with associating of described subscriber equipment.Particularly, this Target cell, according to handover request received in step S202, is set up and prepare with associating between subscriber equipment, such as, prepares and transmission mode between subscriber equipment, prepares this subscriber equipment and access in which way.
In step S204, Target cell sends handoff response to described cell-of-origin.Particularly, establish in step S203 with after the associating and prepare of this subscriber equipment in this Target cell, in step S204, this Target cell is by the communication with cell-of-origin, handoff response is sent to this cell-of-origin, to show that this Target cell has been ready to and connection establishment between subscriber equipment.
Cell-of-origin is received from the handoff response that described Target cell sends.
In step S205, cell-of-origin, according to described handoff response, sends wireless heterogeneous networks reconfiguration request to described subscriber equipment.Particularly, in step S204, when this cell-of-origin receives this handoff response, know that this Target cell is ready, therefore, in step S205, this cell-of-origin is according to this handoff response, by the communication between subscriber equipment, wireless heterogeneous networks reconfiguration request is sent to this subscriber equipment.At this, this wireless heterogeneous networks reconfiguration request comprises the parameter information of Target cell.
Subscriber equipment is received from the wireless heterogeneous networks reconfiguration request that described cell-of-origin sends.
In step S206, subscriber equipment, according to described wireless heterogeneous networks reconfiguration request, accesses described Target cell.Particularly, in step S205, this subscriber equipment receives this wireless heterogeneous networks reconfiguration request, in step S206, this subscriber equipment, according to the parameter information of the Target cell comprised described in this wireless heterogeneous networks reconfiguration request, as the cell ID of this Target cell, accesses this Target cell, as accessed this Target cell by Random Access Channel (RandomAccessChannel, RACH).
Target cell receives the access of described subscriber equipment.
In step S207, Target cell, according to described beamforming factor, adopts beam forming mode, sets up the communication connection with described subscriber equipment.Particularly, in step S207, this Target cell is according to beamforming factor included in handover request received in step S202, adopt corresponding beam forming mode, to subscriber equipment generation accidental access response (RandomAccessResponse, RAR), subscriber equipment is after receiving this accidental access response, send wireless heterogeneous networks to this Target cell and reshuffle message (RadioResourceControlReconfigurationCompleteMessage), to show that this subscriber equipment is successfully connected to this Target cell, subsequently, beam forming mode is passed through in this Target cell, at physical downlink control channel (PhysicalDownlinkControlChannel, or physical down link sharing channel (PhysicalDownlinkSharedChannel PDCCH), PDSCH) on, data message is sent to this subscriber equipment.
Preferably (see Fig. 3), in step S208 (not shown), cell-of-origin according to the parameter information of described cell-of-origin and described Target cell, and in conjunction with the parameter information of described subscriber equipment, calculates the beamforming factor of described subscriber equipment in described Target cell.Particularly, in step s 201, cell-of-origin is received from the measurement report that subscriber equipment sends, and this cell-of-origin knows that this subscriber equipment is wanted to switch to this Target cell, subsequently, in step S208, this cell-of-origin is from the configuration of wireless network, obtain the length of the distance AB of cell-of-origin and Target cell, utilize the positional information of this subscriber equipment and this cell-of-origin, calculate the distance AC of this subscriber equipment and this cell-of-origin, and the angle θ 1 folded by this distance AC and AB, further, according to the positional information of this subscriber equipment and this Target cell, calculate the distance CB of this subscriber equipment and this Target cell, and the angle θ 2 folded by this distance CB and AB, thus calculate the beamforming factor of this subscriber equipment in this Target cell, subsequently, in step S202, this cell-of-origin is by writing in the specific fields of handover request by this beamforming factor, as write in the specific fields of the standard information AS-ConfigIE of handover request, then the handover request this being contained beamforming factor is sent to Target cell.Target cell, according to this beamforming factor, adopts beam forming mode, the communication connection between foundation and this subscriber equipment.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.Any Reference numeral in claim should be considered as the claim involved by limiting.In addition, obviously " comprising " one word do not get rid of other unit or step, odd number does not get rid of plural number.Multiple unit of stating in device claim or device also can be realized by software or hardware by a unit or device.First, second word such as grade is used for representing title, and does not represent any specific order.
Claims (9)
1., for realizing the method calculating beamforming factor in handoff procedure in cell-of-origin, wherein, the method comprises:
A is received from the measurement report that subscriber equipment sends, and wherein, described measurement report comprises the parameter information of described cell-of-origin and Target cell;
B sends handover request to described Target cell, and wherein, described handover request comprises the beamforming factor of described subscriber equipment in described Target cell;
C is received from the handoff response that described Target cell sends;
D, according to described handoff response, sends wireless heterogeneous networks reconfiguration request to described subscriber equipment.
2. method according to claim 1, wherein, the method also comprises:
-according to the parameter information of described cell-of-origin and described Target cell, and in conjunction with the parameter information of described subscriber equipment, calculate the beamforming factor of described subscriber equipment in described Target cell.
3. realize for auxiliary in Target cell the method calculating beamforming factor in handoff procedure, wherein, the method comprises:
A is received from the handover request that cell-of-origin sends, and wherein, described handover request comprises the beamforming factor of subscriber equipment in Target cell;
B, according to described handover request, sets up and prepares with associating of described subscriber equipment;
C sends handoff response to described cell-of-origin;
D receives the access of described subscriber equipment;
E, according to described beamforming factor, adopts beam forming mode, sets up the communication connection with described subscriber equipment.
4. realize for auxiliary in a user device the method calculating beamforming factor in handoff procedure, wherein, the method comprises:
-send measurement report to cell-of-origin, the handover request comprising the beamforming factor of described subscriber equipment in described Target cell is sent to Target cell to trigger described cell-of-origin, wherein, described measurement report comprises the parameter information of described cell-of-origin and Target cell;
-be received from the wireless heterogeneous networks reconfiguration request that described cell-of-origin sends;
-according to described wireless heterogeneous networks reconfiguration request, access described Target cell.
5., for realizing the cell-of-origin calculating beamforming factor in handoff procedure, wherein, this cell-of-origin comprises:
Report receiving system, for being received from the measurement report that subscriber equipment sends, wherein, described measurement report comprises the parameter information of described cell-of-origin and Target cell;
Handover request dispensing device, for sending handover request to described Target cell, wherein, described handover request comprises the beamforming factor of described subscriber equipment in described Target cell;
Response receiving system, for being received from the handoff response that described Target cell sends;
Reconfiguration request dispensing device, for according to described handoff response, sends wireless heterogeneous networks reconfiguration request to described subscriber equipment.
6. cell-of-origin according to claim 5, wherein, this cell-of-origin also comprises:
Factor calculation element, for the parameter information according to described cell-of-origin and described Target cell, and in conjunction with the parameter information of described subscriber equipment, calculates the beamforming factor of described subscriber equipment in described Target cell.
7. in handoff procedure, calculate a Target cell for beamforming factor for auxiliary realization, wherein, this Target cell comprises:
Handover request receiving system, for being received from the handover request that cell-of-origin sends, wherein, described handover request comprises the beamforming factor of subscriber equipment in Target cell;
Association apparatus for establishing, for according to described handover request, sets up and prepares with associating of described subscriber equipment;
Response dispensing device, for sending handoff response to described cell-of-origin;
Access receiving system, for receiving the access of described subscriber equipment;
Connection setup device, for according to described beamforming factor, adopts beam forming mode, sets up the communication connection with described subscriber equipment.
8. in handoff procedure, calculate a subscriber equipment for beamforming factor for auxiliary realization, wherein, this equipment comprises:
Report dispensing device, for sending measurement report to cell-of-origin, send to trigger described cell-of-origin the handover request comprising the beamforming factor of described subscriber equipment in described Target cell to Target cell, wherein, described measurement report comprises the parameter information of described cell-of-origin and Target cell;
Reconfiguration request receiving system, for being received from the wireless heterogeneous networks reconfiguration request that described cell-of-origin sends;
Community access device, for according to described wireless heterogeneous networks reconfiguration request, accesses described Target cell.
9. for realizing the system calculating beamforming factor in handoff procedure, comprise the cell-of-origin as described in claim 5 or 6, Target cell as claimed in claim 7 and subscriber equipment as claimed in claim 8.
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| US11968570B2 (en) * | 2016-09-17 | 2024-04-23 | Qualcomm Incorporated | Techniques for handovers in the presence of directional wireless beams |
| CA3037580C (en) * | 2016-11-04 | 2023-02-14 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Beamforming information interaction method and network device |
| US9900891B1 (en) * | 2016-12-20 | 2018-02-20 | Qualcomm Incorporated | Fallback beam selection procedure during failure of beam change instruction reception |
| CN108271173B (en) | 2016-12-30 | 2020-03-10 | 维沃移动通信有限公司 | Access switching method, network side equipment and mobile terminal |
| CN111557108A (en) * | 2018-01-09 | 2020-08-18 | Oppo广东移动通信有限公司 | Cell switching method, access network equipment and terminal equipment |
| WO2019170210A1 (en) * | 2018-03-05 | 2019-09-12 | Nokia Technologies Oy | Communication connection control procedure for supporting and conducting handover |
| US20230098488A1 (en) * | 2019-06-17 | 2023-03-30 | Beijing Xiaomi Mobile Software Co., Ltd. | Method and apparatus for random access indication |
| CN116419353A (en) * | 2021-12-30 | 2023-07-11 | 华为技术有限公司 | Cell switching method and device |
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| CN101500279A (en) * | 2008-02-03 | 2009-08-05 | 中兴通讯股份有限公司 | Wireless link recovery method |
| CN101848506A (en) * | 2010-03-25 | 2010-09-29 | 新邮通信设备有限公司 | Switching method in long-termed evolution enhancing system and system |
| EP2343919A2 (en) * | 2010-01-08 | 2011-07-13 | Research In Motion Limited | System and method for coordinated multi-point network operation to reduce radio link failure |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101500279A (en) * | 2008-02-03 | 2009-08-05 | 中兴通讯股份有限公司 | Wireless link recovery method |
| EP2343919A2 (en) * | 2010-01-08 | 2011-07-13 | Research In Motion Limited | System and method for coordinated multi-point network operation to reduce radio link failure |
| CN101848506A (en) * | 2010-03-25 | 2010-09-29 | 新邮通信设备有限公司 | Switching method in long-termed evolution enhancing system and system |
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