CN102752819A - Method and system for processing wireless relay node switching - Google Patents
Method and system for processing wireless relay node switching Download PDFInfo
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- CN102752819A CN102752819A CN2011100965241A CN201110096524A CN102752819A CN 102752819 A CN102752819 A CN 102752819A CN 2011100965241 A CN2011100965241 A CN 2011100965241A CN 201110096524 A CN201110096524 A CN 201110096524A CN 102752819 A CN102752819 A CN 102752819A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0072—Transmission or use of information for re-establishing the radio link of resource information of target access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
- H04W84/047—Public Land Mobile systems, e.g. cellular systems using dedicated repeater stations
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Abstract
本发明公开了一种无线中继节点切换的处理方法及系统，该方法包括：无线中继节点接收到来自源宿主基站的消息，其中消息用于指示无线中继节点切换到目标宿主基站；无线中继节点将自身所辖的用户设备的上下文信息发送给目标宿主基站。本发明可以保证接纳控制结果的准确性。
The present invention discloses a processing method and system for wireless relay node handover. The method includes: the wireless relay node receives a message from a source host base station, wherein the message is used to instruct the wireless relay node to switch to a target host base station; The relay node sends the context information of the user equipment it manages to the target donor base station. The invention can guarantee the accuracy of admission control results.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of wireless relay nodes switching processing method and system.
Background technology
Third generation partner program (3rd Generation Partnership Project; Abbreviate 3GPP as) Long Term Evolution (Long-Term Evolution; Abbreviating LTE as) project is the new technology development project of the maximum that starts of 3GPP over the past two years; This with OFDM (Orthogonal Frequency Division Multiplexing; Abbreviate OFDM as)/frequency division multiple access (Frequency Division Multiple Access abbreviates FDMA as) can be counted as " accurate 4G " technology for the technology of core.The main performance target of 3GPP LTE project comprises: the peak rate that descending 100Mbps, up 50Mbps can be provided in the 20MHz spectral bandwidth; Improve the performance of Cell Edge User; Improve cell capacity; Reduce system delay, the inner unidirectional transmission time delay of user plane is lower than 5ms, and control plane is lower than 50ms from sleep state to the state of activation transit time, and the transit time from the resident state to the state of activation is less than 100ms; Support the sub-district of 100Km radius to cover; Can the access service greater than 100kbps be provided for 350Km/h high-speed mobile user; Support paired or non-paired frequency spectrum, but and flexible configuration 1.25M Hz to the 20MHz various bandwidth.
LTE-A is the abbreviation of LTE-Advanced, is the follow-up evolution of LTE technology.LTE is commonly called as 3.9G, and the technical indicator of this explanation LTE is very approaching with 4G.LTE compares with 4G, and except that maximum bandwidth, two indexs of up peak rate required a little less than 4G, the other technologies index had all reached the requirement of 4G standard.The technological global design of LTE formally being brought into the LTE-A of 4G has then far surpassed the minimum essential requirement of 4G.In June, 2008,3GPP has accomplished the technical need report of LTE-A, has proposed the minimum essential requirement of LTE-A: descending peak rate 1Gbps, and up peak rate 500Mbps, up-downgoing peaks spectrum utilance reaches 15Mbps/Hz and 30Mbps/Hz respectively.These parameters are far above (the International Telecommunications Union-Telecommunicationsstandardization sector of ITU Telecommunication Standardization Sector; Abbreviate ITU-T as) the minimum technology demand parameter, have remarkable advantages.The key technology of LTE-A comprises carrier aggregation, the multiple spot cooperation, and the relay transmission, many antennas strengthen, wireless relay, self-organizing network etc.
Wherein the wireless relay technology is applied to provisional wireless coverage demand.Like the area that the wired backbone network that can't suppose ordinary base station owing to reasons such as landform or environment connects, perhaps cover the area or the hot zones at dead angle.It is higher that the base station equipment of setting up wired connection solves this covering demand cost, therefore introduces the wireless relay technology and solve.
Fig. 1 is the sketch map according to the wireless relay nodes framework of correlation technique, and is as shown in Figure 1, wireless relay nodes (RelayNode; Abbreviate RN as) be connected through wireless signal with the base station of existing network; And be that (User Equipment UE) provides service to the interior subscriber equipment of self coverage, thereby realizes coverage extension; Reduce covering the dead angle, and shift hot zones load etc.The base station of carrying out wireless connections with RN is called host base station (Donor eNodeB abbreviates DeNB as), and the Radio Link between DeNB and the RN is called back haul link (backhaul link), and the air interface between DeNB and the RN (abbreviation is eated dishes without rice or wine) is called the Un interface.Radio Link between RN and the UE is called access link (Access Link), and the air interface between RN and the UE is called the Uu interface.For the UE that RN served, this RN serves as the role of an eNB; And for the DeNB that is connected with RN, this RN then serves as the role of a UE.Downlink data arrives earlier DeNB, and DeNB passes to RN with this downlink data, then by RN with this downlink data transmission to UE, otherwise transmission of uplink data then.
Via node also can be applied to the high-speed mobile scene and for example be applied in the mobile unit, for the wireless telecommunications system in the car provides stable wireless coverage.Under this scene, along with the mobility of vehicle, via node can switch between different host base stations.Handoff procedure can be divided into through core net switching (for example S1 switches) according to ground side signalling route mode or directly switch (for example X2 switches).
Fig. 2 is the flow chart through the core net switching according to correlation technique; As shown in Figure 2; Through the core net switching flow can simplified summary be: when source base station judges that according to the measurement report of UE UE needs initiate to switch; Require order through sending to switch to core net, carry the contextual information of this UE in the order with core network interface (for example S1).After core net receives,, judge the position at target BS place, and send handoff request and give target BS through the information of carrying in the order.Target BS reads the wherein contextual information of UE, and UE is admitted control.After the target BS judgement can insert this UE, reply switching request acknowledgement message to core net, core net is forwarded to source base station again and begins the handoff procedure that UE is eating dishes without rice or wine.
Fig. 3 is the flow chart through the direct interface switching according to correlation technique; As shown in Figure 3; Directly switching flow can simplified summary be: when source base station judges that according to the measurement report of UE UE needs initiate to switch; Send switching through direct interface between the base station (for example X2) to target BS and require order, carry the contextual information of this UE in the order.Target BS reads information wherein, and UE is admitted control.After judgement can insert this UE, reply response message to source base station, source base station begins the handoff procedure that UE is eating dishes without rice or wine.
In above-mentioned handoff procedure; Be all can in switching the requirement order, carry the contextual information of UE at source base station through core net switching or direct switching, this contextual information comprises: the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI of UE (Cell Radio NetworkTemporary Identifier abbreviates C-RNTI as); The measurement configuration of UE; Signaling Radio Bearer (Signaling RadioBearer abbreviates SRB as) configuration, Data Radio Bearer (Data Radio Bearer; Abbreviate DRB as) configuration, information such as UE ability.Target BS need judge whether to allow UE to insert according to above-mentioned information and the configuration of self and Radio Resource situation, and this process is also cried to admit and controlled (Admission Control).
And under scene such as vehicle-mounted, via node is to move simultaneously with its terminal of having jurisdiction over, if this moment, control was only admitted according to the context of via node in target host base station, then admits the control result inaccurate.
Summary of the invention
Only admit the problem of control to propose the present invention to target host base station in the correlation technique according to the context of wireless relay nodes; For this reason; Main purpose of the present invention is to provide a kind of wireless relay nodes switching processing method and system, to address the above problem.
To achieve these goals, according to embodiments of the invention, a kind of wireless relay nodes switching processing method is provided.
Wireless relay nodes switching processing method according to the present invention comprises: wireless relay nodes receives the message from the sourcesink dominant base, and wherein message is used to indicate wireless relay nodes to switch to target host base station; Wireless relay nodes sends to target host base station with the contextual information of the subscriber equipment of self having jurisdiction over.
Preferably, after wireless relay nodes sent to target host base station with the contextual information of the subscriber equipment of self having jurisdiction over, said method also comprised: target host base station receives the contextual information of the subscriber equipment that wireless relay nodes has jurisdiction over; Target host base station based on contextual information is admitted control to the subscriber equipment that wireless relay nodes is had jurisdiction over.
Preferably; Target host base station based on contextual information; It is one of following that the subscriber equipment that wireless relay nodes is had jurisdiction over admits control to comprise: for admitting the successful subscriber equipment of control, target host base station is mapped to the radio bearer of this subscriber equipment on the radio bearer of wireless relay nodes; For the subscriber equipment of admitting the control failure, target host base station is with the information notice wireless relay nodes of this subscriber equipment, perhaps through initiating the release of this subscriber equipment with the flow process of core net.
Preferably, message is wireless resource control connection reconfiguration message, and wireless relay nodes is accomplished message through wireless resource control connection reconfiguration the contextual information of the subscriber equipment of self having jurisdiction over is sent to target host base station.
Preferably, the contextual information of subscriber equipment comprise following one of at least: the Mobility Management Entity of the ability information of the Signaling Radio Bearer configuration of the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI of subscriber equipment, the measurement configuration of subscriber equipment, subscriber equipment, the Data Radio Bearer configuration of subscriber equipment, subscriber equipment, the current service of subscriber equipment.
To achieve these goals, according to another aspect of the present invention, a kind of wireless relay nodes switching processing system is provided.
Comprise wireless relay nodes, sourcesink dominant base and target host base station according to wireless relay nodes switching processing of the present invention system; Wherein wireless relay nodes comprises: receiver module; Be used to receive the message from the sourcesink dominant base, wherein message is used to indicate wireless relay nodes to switch to target host base station; Sending module, the contextual information of the subscriber equipment that is used for wireless relay nodes self is had jurisdiction over sends to target host base station.
Preferably, target host base station comprises: receiver module is used to receive the contextual information of the subscriber equipment that wireless relay nodes has jurisdiction over; Admit control module, be used for based on contextual information, the subscriber equipment that wireless relay nodes is had jurisdiction over is admitted control.
Preferably, admit control module to comprise: mapping submodule, be used for for admitting the successful subscriber equipment of control, the radio bearer of this subscriber equipment is mapped on the radio bearer of wireless relay nodes; The notice submodule is used for for the subscriber equipment of admitting the control failure, with the information notice wireless relay nodes of this subscriber equipment; Initiate submodule, be used for, through initiating the release of this subscriber equipment with the flow process of core net for the subscriber equipment of admitting the control failure.
Preferably, message is wireless resource control connection reconfiguration message, and sending module is accomplished message through wireless resource control connection reconfiguration the contextual information of the subscriber equipment of self having jurisdiction over is sent to target host base station.
Preferably, the contextual information of subscriber equipment comprise following one of at least: the Mobility Management Entity of the ability information of the Signaling Radio Bearer configuration of the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI of subscriber equipment, the measurement configuration of subscriber equipment, subscriber equipment, the Data Radio Bearer configuration of subscriber equipment, subscriber equipment, the current service of subscriber equipment.
The present invention sends to target host base station through wireless relay nodes with the contextual information of the subscriber equipment of self having jurisdiction over; Thereby make target host base station to admit control, and then guarantee to admit control result's accuracy according to the context of subscriber equipment.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the sketch map according to the wireless relay nodes framework of correlation technique;
Fig. 2 is the flow chart through the core net switching according to correlation technique;
Fig. 3 is the flow chart through the direct interface switching according to correlation technique;
Fig. 4 is the wireless relay nodes switching processing method according to the embodiment of the invention;
Fig. 5 is a flow chart according to the preferred embodiment of the invention;
Fig. 6 is the structured flowchart according to the wireless relay nodes switching processing system of the embodiment of the invention.
Embodiment
Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.Below with reference to accompanying drawing and combine embodiment to specify the present invention.
The invention provides a kind of wireless relay nodes switching processing method.Fig. 4 is the wireless relay nodes switching processing method according to the embodiment of the invention, and is as shown in Figure 4, comprises that following step S402 is to step S404.
Step S402, wireless relay nodes receives the message from the sourcesink dominant base, and wherein message is used to indicate wireless relay nodes to switch to target host base station.
Step S404, wireless relay nodes sends to target host base station with the contextual information of the subscriber equipment of self having jurisdiction over.
In the correlation technique, control is only admitted according to the context of wireless relay nodes in target host base station.In the embodiment of the invention; Through wireless relay nodes the contextual information of the subscriber equipment of self having jurisdiction over is sent to target host base station; Thereby make target host base station to admit control, and then guarantee to admit control result's accuracy according to the context of subscriber equipment.
Preferably, after wireless relay nodes sent to target host base station with the contextual information of the subscriber equipment of self having jurisdiction over, said method also comprised: target host base station receives the contextual information of the subscriber equipment that wireless relay nodes has jurisdiction over; Target host base station based on contextual information is admitted control to the subscriber equipment that wireless relay nodes is had jurisdiction over.
Preferably; Target host base station based on contextual information; It is one of following that the subscriber equipment that wireless relay nodes is had jurisdiction over admits control to comprise: for admitting the successful subscriber equipment of control, target host base station is mapped to the radio bearer of this subscriber equipment on the radio bearer of wireless relay nodes; For the subscriber equipment of admitting the control failure, target host base station is with the information notice wireless relay nodes of this subscriber equipment, perhaps through initiating the release of this subscriber equipment with the flow process of core net.
Preferably, message is wireless resource control connection reconfiguration message, and wireless relay nodes is accomplished message through wireless resource control connection reconfiguration the contextual information of the subscriber equipment of self having jurisdiction over is sent to target host base station.
Preferably; The contextual information of subscriber equipment comprise following one of at least: the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI of subscriber equipment (Cell Radio Network Temporary Identifier; Abbreviate C-RNTI as), the measurement configuration of subscriber equipment, Signaling Radio Bearer (the Signaling Radio Bearer of subscriber equipment; Abbreviate SRB as) configuration, subscriber equipment Data Radio Bearer (Data Radio Bearer; Abbreviate DRB as) Mobility Management Entity (Mobile Management Entity abbreviates MME as) of the current service of ability information, the subscriber equipment of configuration, subscriber equipment.
To combine instance that the implementation procedure of the embodiment of the invention is described in detail below.
This preferred embodiment is described one group of terminal (UEs) and is inserted wireless relay nodes RN through wireless connections.RN switches to target host base station Target DeNB through sourcesink dominant base Source DeNB, RN with the mutual signaling of the RRC of Target DeNB in carry the context of the UE that has jurisdiction over.
Fig. 5 is a flow chart according to the preferred embodiment of the invention, and is as shown in Figure 5, comprises that following step S502 is to step S510.
Step S502, RN detects Source DeNB according to the configuration of OAM and wireless signal on every side.RN initiates RRC to Source DeNB and connects the request of foundation, and oneself is wireless relay nodes to Source DeNB indication.SourceDeNB is that RN selects MME and set up RAB that (E-UTRAN Radio Access Bearer, E-RAB), MME carries out authentication to RN in this process.After checking was passed through, Source DeNB was eating dishes without rice or wine to distribute special-purpose Radio Resource and Data Radio Bearer for RN.On this carried, RN and OAM connected and obtain and undated parameter, simultaneously on this carrying and set up S1 and X2 interface between the RN.This moment, RN began to set up the sub-district of oneself, and was eating dishes without rice or wine to carry out system broadcasts.
Step S504, one group of UE detects and resides in from eating dishes without rice or wine the sub-district of RN foundation.After UE gets into connected state, set up RRC between UE and the RN and is connected, RN is private resources such as UE distribution C-RNTI, allocating and measuring, SRB, DRB.RN is with the identity of eNB, and through S1 Initial UE Message signaling, E-RAB is set up in the UE request for this reason.This signaling is forwarded to corresponding M ME through DeNB.MME is that UE sets up E-RAB through S1 lnitial Context Setup signaling, carries the ability information of UE simultaneously.RN preserves the contextual information (Cell Radio Network Temporary Identifier/Identity, Cell-RNTI that comprises UE of the connected state UE that obtains in the said process; The measurement configuration of UE, Signaling Radio Bearer configuration, Data Radio Bearer configuration; The UE ability, one or more of the information such as Serving MME that UE is current).
Step S506, along with moving of RN, Source DeNB judges that through measurement report RN is near target host base station Target DeNB.Source DeNB initiates direct interface to Target DeNB and switches X2 Handover Request message, and indication RN is a wireless relay nodes in the message, and carries the context of RN.Target DeNB can admit RN according to the context determination of RN, and returns X2 Handover Request Acknowledge message to Source DeNB.
Step S508, Source DeNB switches to Target DeNB through RRC RRCConnectionReconfiguration message indication RN.Carry RN in this signaling and be linked into the configuration of eating dishes without rice or wine of necessity under the Target DeNB, for example new C-RNTI, system broadcast information, special-purpose RACH sign indicating number (Random Access Channel preamble, RACHpreamble) etc.
Step S510, RN is synchronous according to new radio configuration and Target DeNB, and sends RRCRRCConnectionReconfigurationComplete message to Target DeNB.In this message, the context of its one group of UE that has jurisdiction over that RN is preserved in step 102 simultaneously.After Target DeNB receives this group context, whether can admit all or part of UE according to the self radio resource judgment.For judging the UE that can admit, Target DeNB need be according to the E-RAB of this UE of configuration determination, and it is the corresponding relation between the E-RAB of RN foundation; For judging the UE that cannot admit, the TargetDeNB based on context information of the Serving MME of the middle UE that preserves initiates the context of this UE is discharged to this MME; Perhaps the Target DeNB terminal list that will admit failure through and RN between chain of command message (for example RRC flow process, S1 flow process or X2 flow process) notice RN, carry out further releasing and processing by RN.
Need to prove; Except the wireless relay technology; The present invention can also be applied to other technology, and for example equipment such as L1 Repeater also possibly carry one group of UE and switches, and switches under (Group Mobility) scene in this group; Use method of the present invention can realize that also target host base station can also admit control according to the context of subscriber equipment, thereby guarantee to admit control result's accuracy.
Need to prove; Can in computer system, carry out in the step shown in the flow chart of accompanying drawing such as a set of computer-executable instructions; And; Though logical order has been shown in flow chart, in some cases, can have carried out step shown or that describe with the order that is different from here.
The embodiment of the invention provides a kind of wireless relay nodes switching processing system, and this wireless relay nodes switching processing system can be used to realize said method.Fig. 6 is the structured flowchart according to the wireless relay nodes switching processing system of the embodiment of the invention; As shown in Figure 6; Comprise wireless relay nodes 62, sourcesink dominant base 64 and target host base station 66, wherein, wireless relay nodes 62 comprises receiver module 622 and sending module 624.Be described in detail in the face of its structure down.
Receiver module 622 is used to receive the message from sourcesink dominant base 64, and wherein message is used to indicate wireless relay nodes 62 to switch to target host base station 66; Sending module 624 is connected to receiver module 622, and the contextual information of the subscriber equipment that is used for wireless relay nodes 62 self is had jurisdiction over sends to the target host base station 66 of the message indication that receiver module 622 receives.
Preferably, target host base station 66 comprises receiver module 662 and admits control module 664, is described in detail in the face of its structure down.
Receiver module 662 is used to receive the contextual information of the subscriber equipment that wireless relay nodes 62 had jurisdiction over; Admit control module 664, be connected to receiver module 662, be used for contextual information, the subscriber equipment that wireless relay nodes 62 is had jurisdiction over is admitted control according to receiver module 662 receptions.
Preferably, admit control module 664 to comprise mapping submodule 6642, notice submodule 6644 and initiation submodule 6646, be described in detail in the face of its structure down.
Mapping submodule 6642 is used for for admitting the successful subscriber equipment of control, and the radio bearer of this subscriber equipment is mapped on the radio bearer of wireless relay nodes 62; Notice submodule 6644 is used for for the subscriber equipment of admitting the control failure, with the information notice wireless relay nodes 62 of this subscriber equipment; Initiate submodule 6646, be used for, through initiating the release of this subscriber equipment with the flow process of core net for the subscriber equipment of admitting the control failure.
Preferably, message is wireless resource control connection reconfiguration message, and sending module 624 is accomplished message through wireless resource control connection reconfiguration the contextual information of the subscriber equipment of self having jurisdiction over is sent to target host base station 66.
Preferably, the contextual information of subscriber equipment comprise following one of at least: the Mobility Management Entity of the ability information of the Signaling Radio Bearer configuration of the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI of subscriber equipment, the measurement configuration of subscriber equipment, subscriber equipment, the Data Radio Bearer configuration of subscriber equipment, subscriber equipment, the current service of subscriber equipment.
Need to prove that the wireless relay nodes switching processing system of describing among the device embodiment is corresponding to above-mentioned method embodiment, its concrete implementation procedure had been carried out detailed description in method embodiment, repeat no more at this.
In sum, according to the abovementioned embodiments of the present invention, a kind of wireless relay nodes switching processing method and system are provided.The present invention sends to target host base station through wireless relay nodes with the contextual information of the subscriber equipment of self having jurisdiction over; Thereby make target host base station to admit control, and then guarantee to admit control result's accuracy according to the context of subscriber equipment.
Obviously, it is apparent to those skilled in the art that above-mentioned each module of the present invention or each step can realize with the general calculation device; They can concentrate on the single calculation element; Perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element; Thereby; Can they be stored in the storage device and carry out, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize by calculation element.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100965241A CN102752819A (en) | 2011-04-18 | 2011-04-18 | Method and system for processing wireless relay node switching |
| PCT/CN2012/072616 WO2012142895A1 (en) | 2011-04-18 | 2012-03-20 | Method and system for handling wireless relay node handover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011100965241A CN102752819A (en) | 2011-04-18 | 2011-04-18 | Method and system for processing wireless relay node switching |
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| CN102752819A true CN102752819A (en) | 2012-10-24 |
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| CN2011100965241A Pending CN102752819A (en) | 2011-04-18 | 2011-04-18 | Method and system for processing wireless relay node switching |
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| WO (1) | WO2012142895A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104247550A (en) * | 2013-04-03 | 2014-12-24 | 华为技术有限公司 | A data transmission method, communication device and communication system |
| CN110830227A (en) * | 2013-07-04 | 2020-02-21 | 韩国电子通信研究院 | Method for multiple connectivity |
| CN115918243A (en) * | 2020-05-27 | 2023-04-04 | 索尼集团公司 | Electronic device, wireless communication method, and computer-readable storage medium |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN119653449A (en) * | 2023-09-15 | 2025-03-18 | 华为技术有限公司 | A communication method and device |
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| CN101262269A (en) * | 2007-03-05 | 2008-09-10 | 华为技术有限公司 | A group node switching method, communication system and mobile relay station |
| WO2010016676A2 (en) * | 2008-08-05 | 2010-02-11 | Samsung Electronics Co., Ltd. | Apparatus and method for handover in broadband wireless communication system for supporting mobile relay station |
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| CN104247550A (en) * | 2013-04-03 | 2014-12-24 | 华为技术有限公司 | A data transmission method, communication device and communication system |
| CN104247550B (en) * | 2013-04-03 | 2019-03-26 | 华为技术有限公司 | A data transmission method, communication device and communication system |
| CN110830227A (en) * | 2013-07-04 | 2020-02-21 | 韩国电子通信研究院 | Method for multiple connectivity |
| CN115918243A (en) * | 2020-05-27 | 2023-04-04 | 索尼集团公司 | Electronic device, wireless communication method, and computer-readable storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012142895A1 (en) | 2012-10-26 |
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