CN105813091A - Information transceiving method and system, virtual macro base station control device and micro base station - Google Patents
Information transceiving method and system, virtual macro base station control device and micro base station Download PDFInfo
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- CN105813091A CN105813091A CN201410838387.8A CN201410838387A CN105813091A CN 105813091 A CN105813091 A CN 105813091A CN 201410838387 A CN201410838387 A CN 201410838387A CN 105813091 A CN105813091 A CN 105813091A
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Abstract
The invention discloses an information transceiving method and system, a virtual macro base station control device and a micro base station, and relates to the technical field of communications. The method comprises: the virtual macro base station control device sends downlink information to the administered micro base station; and the micro base station sends the downlink information to a terminal within the coverage thereof to expand the coverage of the downlink information. The method and the system can realize a double-connection network under the micro base station and the micro base station networking scene without macro base station coverage.
Description
Technical field
The present invention relates to mobile communication technology field, especially a kind of information transceiving method and system, virtual macro base station control device, micro-base station.
Background technology
Along with developing rapidly of mobile Internet, network rate is had higher requirement by user, in order to meet user for business experience rate requirement, following mobile communications network will be the wireless base station network of dense deployment more, in this network, existing macro base station also has greater amount of micro-base station, even also has femto base station.In intensive networking, along with the increase of base station number, the interference between base station will be more big, and more complicated, and between the base station that the movement of terminal unit brings simultaneously, switching will be more frequent, and this all will be substantially reduced customer service and experience.
For this, prior art proposes dual link network, part chain of command information by terminal, such as wireless heterogeneous networks (RRC, radioresourcecontrol) information is placed in the bigger better macro base station of coverage, Radio Resource distribution and mobile handoff it is uniformly controlled by macro base station, and micro-base station is merely responsible for the process of wireless traffic resource, thus the chain of command of user and service surface information are partially separated, chain of command information and service surface information are individually placed in respective optimal wireless link.Dual link network plan has lot of advantages, for instance, reducing interference, reducing switching, thus promoting network performance.
But, in real network is disposed, a lot of regions particularly room area does not have macro base station to cover, and is generally adopted a large amount of micro-base station and covers, and cannot be continuing with dual link network plan under (micro-base station and micro-base station) networking scene slightly.
Summary of the invention
The embodiment of the present invention is to be solved be technical problem is that: under the scene not having macro base station to cover, as under slight networking scene, and the problem how realizing dual link network plan.
According to an aspect of the present invention, it is provided that a kind of information transceiving method, including: virtual macro base station controls device and sends downlink information to micro-base station of its administration；Described downlink information is sent to the terminal in its coverage by described micro-base station, to extend the coverage of described downlink information.
In one embodiment, described method also includes: described micro-base station receives the uplink information that described terminal sends, and is sent to described virtual macro base station control device；Described virtual macro base station controls device and receives the uplink information that described micro-base station sends, to extend the coverage of described uplink information.
In one embodiment, described downlink information is sent respectively to the terminal in its coverage by multiple described micro-base stations, in order to described downlink information is carried out diversity reception by described terminal, to extend the coverage of described downlink information.
In one embodiment, multiple described micro-base stations receive the uplink information that described terminal sends respectively, and are sent to described virtual macro base station control device；The uplink information that multiple described micro-base stations are sent by described virtual macro base station control device carries out diversity reception, to extend the coverage of described uplink information.
In one embodiment, described method also includes: it is that Radio Resource is coordinated in micro-base station that described virtual macro base station controls device according to uplink information.
In one embodiment, described downlink information includes chain of command information.
In one embodiment, described uplink information includes radio link quality information.
According to a further aspect in the invention, a kind of virtual macro base station is provided to control device, including: downlink information transmitting element, for sending downlink information to micro-base station of its administration, so that described downlink information is sent to the terminal in its coverage by described micro-base station, to extend the coverage of described downlink information.
In one embodiment, described device also includes: uplink information receives unit, for receiving the uplink information carrying out self terminal that described micro-base station sends, to extend the coverage of described uplink information.
In one embodiment, described uplink information receives unit, and the uplink information carrying out self terminal being additionally operable to multiple described micro-base stations are sent carries out diversity reception, to extend the coverage of described uplink information.
In one embodiment, described device also includes: Radio Resource coordination unit, and being used for according to uplink information is that Radio Resource is coordinated in micro-base station.
In one embodiment, described downlink information includes chain of command information.
In one embodiment, described uplink information includes radio link quality information.
According to another aspect of the invention, it is provided that a kind of micro-base station, including: downlink information Transmit-Receive Unit, control, for receiving virtual macro base station, the downlink information that device sends, and be sent to the terminal in its coverage, to extend the coverage of described downlink information.
In one embodiment, described micro-base station also includes: uplink information Transmit-Receive Unit, for receiving the uplink information that described terminal sends, and is sent to described virtual macro base station control device, to extend the coverage of described uplink information.
In one embodiment, described downlink information includes chain of command information.
In one embodiment, described uplink information includes radio link quality information.
In accordance with a further aspect of the present invention, it is provided that a kind of information transmission system, including: the virtual macro base station described in any of the above-described embodiment controls the micro-base station described in device and any of the above-described embodiment.
The embodiment of the present invention at least has the advantages that
On the one hand, virtual macro base station is set and controls device, this device can communicate with each micro-base station, the channel communicated between this device with terminal is set up by micro-base station, service layer can be terminal service by micro-base station, thus realizing dual link network plan, the program goes for the scene not having macro base station to cover, such as slight networking scene.Dual link network plan can reduce interference, reduce switching, promotes network performance.
Another further aspect, virtual macro base station controls device can send identical information by multiple micro-base stations to terminal, terminal adopts the method for diversity to receive information, and identical information can also be sent to virtual macro base station by multiple micro-base stations and control device by terminal, virtual macro base station controls device and adopts the method for diversity to receive information, thus efficiently solving micro-base station to cover the continuous covering problem under not enough scene, improving virtual macro base station and controlling information transmit-receive performance and the stability of device.
Below by drawings and Examples, technical scheme is described in further detail.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of one embodiment of information transmission system of the present invention；
Fig. 2 is the schematic flow sheet of one embodiment of information transceiving method of the present invention；
Fig. 3 is the schematic diagram of downlink information diversity of the present invention transmitting-receiving；
Fig. 4 is the schematic flow sheet of another embodiment of information transceiving method of the present invention；
Fig. 5 is the schematic diagram of uplink information diversity of the present invention transmitting-receiving；
Fig. 6 is the structural representation that the virtual macro base station of the present invention controls one embodiment of device；
Fig. 7 is the structural representation of one embodiment in the micro-base station of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
Unless specifically stated otherwise, the parts otherwise set forth in these embodiments and positioned opposite, the numerical expression of step and numerical value do not limit the scope of the invention.
Simultaneously, it should be appreciated that for the ease of describing, the size of the various piece shown in accompanying drawing is not draw according to actual proportionate relationship.
The known technology of person of ordinary skill in the relevant, method and apparatus are likely to be not discussed in detail, but in the appropriate case, described technology, method and apparatus should be considered to authorize a part for description.
Shown here with in all examples discussed, any occurrence should be construed as merely exemplary, not as restriction.Therefore, other example of exemplary embodiment can have different values.
It should also be noted that similar label and letter below figure represent similar terms, therefore, once a certain Xiang Yi accompanying drawing is defined, then it need not be further discussed in accompanying drawing subsequently.
The present interference coordination between LTE base station is to adopt to solve based on the mode held consultations on an equal footing between the base station of X2 interface, but this mode is based on and carries out between the base station of equal standing, so the negotiation between base station is not mandatory, the source scheduling mode that interference coordination needs is suggestion formula, rather than the scheduling under unified management and control.For macro base station, due to the spacing between base station farther out, the interference between base station is not too big, and this mode held consultations on an equal footing is feasible.
But, under macro and micro networks scene or slight networking scene, owing between base station, spacing is less, so the interference between base station is comparatively serious, if still adopting the mode held consultations on an equal footing between this base station, then it is difficult to be avoided interference by resource coordination.This is because each base station can face the interference from a lot of adjacent micro-base stations, one base station will carry out resource coordination with each base station of surrounding simultaneously, the feedback speed of each base station is also different, this reduces the speed that Radio Resource is coordinated, will not have due interference coordination effect.If ensureing that there is less interference neighbor cell, then may be faced with either own cell does not have the operable condition of resource.
Under macro and micro networks scene, macro base station can coordinate centralized Control and scheduling in Radio Resource distribution, and efficiency is more rapid and effective, such that it is able to overcome the shortcoming based on the distributed interference coordination of X2 interface.
For how concentrating the problem coordinating Radio Resource under slight networking scene, the present inventor proposes to utilize virtual macro base station to control device and carrys out unified management and issue the downlink information of dual link network, for instance RRC signaling.
Fig. 1 is the structural representation of one embodiment of information transmission system of the present invention.
As it is shown in figure 1, this information transmission system includes: virtual macro base station controls device 101 and micro-base station 102.Under normal circumstances, virtual macro base station control device 101 can administer or service multiple micro-base station 102.The transmission link that virtual macro base station controls between device and each micro-base station can adopt wired connection mode, reduces interference with further.During actual deployment, virtual macro base station controls device 101 can be deployed to the equipment independent of each micro-base station 102, it is also possible to be deployed on some micro-base station 102.
One of which implementation, each micro-base station isolates a part of identical running time-frequency resource, this portion of time frequency resources is all used for receiving and dispatching virtual macro base station and controls the up-downgoing information of device, the Radio Resource of each micro-station spare constitutes respective micro-base station, for and the process of service surface information between terminal.Terminal can control device with virtual macro base station simultaneously and micro-base station communicates, thus forming the communication scenes of dual link network.
Fig. 2 is the schematic flow sheet of one embodiment of information transceiving method of the present invention.
As in figure 2 it is shown, the method for the present embodiment comprises the steps:
Step 202, virtual macro base station controls device and sends downlink information to micro-base station of its administration.Generally administering multiple micro-base station owing to virtual macro base station controls device, therefore, virtual macro base station controls device and sends identical downlink information to multiple micro-base station of its administration.
Wherein, downlink information includes all downlink information that virtual macro base station issues, and specifically can include chain of command information and service surface information.As a non-limiting example, downlink information can be such as RRC signaling.
Step 204, downlink information is sent to the terminal in its coverage by micro-base station, with the coverage of expanded downstream information.
Sending downlink information when virtual macro base station controls device, for instance during RRC signaling, virtual macro base station controls device and by terrestrial transmission link, RRC signaling is issued each micro-base station, and micro-base station issues RRC signaling by reserved interface-free resources to terminal.
The present embodiment is provided with virtual macro base station and controls device, this device can communicate with each micro-base station, the channel communicated between this device with terminal is set up by micro-base station, service layer can be terminal service by micro-base station, thus realizing dual link network plan, the program goes for the scene not having macro base station to cover, such as slight networking scene.Dual link network plan can reduce interference, reduce switching, promotes network performance.
In step 204, when terminal is in the coverage of multiple micro-base station, the downlink information received can be sent respectively to the terminal in its coverage by the plurality of micro-base station, in order to downlink information is carried out diversity reception by this terminal, to further expand the coverage of downlink information.Such as, if virtual macro base station controls device administers N number of micro-base station, terminal is in the coverage of wherein M micro-base station, then RRC signaling is issued this N number of micro-base station by terrestrial transmission link by virtual macro base station control device, and M therein micro-base station forwards RRC signaling by reserved interface-free resources to terminal.
Specifically, as shown in Figure 3, owing to multiple micro-base stations all issue identical downlink information, for RRC signaling, therefore, multiple identical RRC signalings can be carried out diversity reception by terminal, such as, than diversity receiving algorithm, multiple identical RRC signalings being carried out diversity reception by maximum merging, thus obtaining the RRC signaling area of coverage of extension, extending effective overlay area of micro-base station.
Fig. 4 is the schematic flow sheet of another embodiment of information transceiving method of the present invention.
As shown in Figure 4, the method for the present embodiment comprises the following steps:
Step 402, micro-base station receives the uplink information that terminal sends, and is sent to virtual macro base station control device.
Step 404, virtual macro base station controls device and receives the uplink information that micro-base station sends, to extend the coverage of uplink information.
Uplink information in the present embodiment includes all up-link informations of terminal to report, specifically can include ascending control information and business information.As a non-limiting example, uplink information can be radio link quality information.Specifically, radio link quality information can be the downlink quality information of micro-base station, or virtual macro base station controls the downlink quality information of device.
In slight networking scene, virtual macro base station controls scheduling and the interference coordination that device needs all micro-base station down interface-free resources are concentrated, therefore terminal has needed the downlink quality measurement of micro-base station, this community, can also complete the micro-downlink mass measurement in neighbor cell simultaneously.Such as, terminal can assess the downlink quality of micro-base station by the pilot signal strength and interference signal intensity measuring micro-base station.
Gain is merged owing to the down wireless link of virtual macro base station control device would be likely to occur diversity, therefore terminal is except measuring the quality of down wireless link of all adjacent micro-base stations, it is also possible to control the quality of down wireless link of device according to the virtual macro base station of neighbor cell quantity survey.Adjacent micro-base station is more many, and signal is more balanced, then the down wireless link merging gain that the virtual macro base station obtained controls device is more big, then merge gain estimated value more big.Typically, if there being two micro-base stations, merging gain and can obtain 2-3dB；If there being four micro-base stations, merging gain and can obtain 4-6dB, by that analogy.Merge gain estimated value and can control the downlink quality measurement information of device as virtual macro base station.
The present embodiment is provided with virtual macro base station and controls device, this device can communicate with each micro-base station, the channel communicated between this device with terminal is set up by micro-base station, service layer can be terminal service by micro-base station, thus realizing dual link network plan, the program goes for the scene not having macro base station to cover, such as slight networking scene.Dual link network plan can reduce interference, reduce switching, promotes network performance.
When terminal is in the coverage of multiple micro-base station, step 402 specifically can be achieved in that the plurality of micro-base station receives the uplink information that terminal sends respectively, and is sent to virtual macro base station control device.Correspondingly, step 404 specifically can be achieved in that the uplink information that multiple micro-base stations are sent by virtual macro base station control device carries out diversity reception, to expand the coverage of uplink information.
It is radio link quality information for uplink information, terminal measures the downlink quality information of each micro-base station, and estimate that virtual macro base station controls the downlink quality information of device, then control the ascending wireless resource of device reports at virtual macro base station by all of radio link quality information.Owing to virtual macro base station controls what the ascending wireless resource of device was made up of the identical running time-frequency resource that each micro-base station is reserved, therefore keeping for the ascending idle port that virtual macro base station controls device all can receive the identical radio link quality information of terminal to report in each micro-base station, this radio link quality information is radiofrequency signal.Radiofrequency signal can be converted to baseband digital signal by each micro-base station after receiving the uplink information that terminal sends, and is then sent to virtual macro base station and controls device.
As shown in Figure 5, virtual macro base station controls device can carry out diversity reception to the uplink information that each micro-base station sends, such as, by selective diversity algorithm, multiple uplink informations are carried out diversity reception, thus the diversity obtaining uplink information merges gain, this also just extends the overlay area of uplink information.
In another embodiment of information transceiving method of the present invention, virtual macro base station control device receive micro-base station send uplink information after, it is possible to according to uplink information be micro-base station coordinate Radio Resource.Below citing is illustrated.
Such as, virtual macro base station controls which micro-base station device can select by be terminal service according to the radio link quality information of the micro-base station in uplink information, namely the switching between micro-base station is determined, for instance can select the good micro-base station of radio link quality is terminal service.
Again such as, virtual macro base station controls device and can determine the transmission mode of micro-base station down information according to the radio link quality information of the virtual macro base station control device in uplink information.Specifically, when the radio link quality that virtual macro base station controls device is better, it is possible to adopt the mode of spatial reuse to send downlink information；When the radio link quality that virtual macro base station controls device is poor, it is possible to adopt the mode of space diversity to send downlink information.
Further for example, virtual macro base station controls device can control the radio link quality information of device according to the virtual macro base station in uplink information, coordinate micro-base station Radio Resource for macro base station control device and the Radio Resource for service surface information processing.
Controlled device by virtual macro base station and be uniformly controlled Radio Resource distribution and mobility switching, and micro-base station is merely responsible for the process of wireless traffic resource, thus the chain of command of user and service surface information are partially separated, chain of command information and service surface information are individually placed in respective optimal wireless link, it is achieved that the dual link network plan under networking scene slightly.
In this specification, each embodiment all adopts the mode gone forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, same or analogous part cross-reference between each embodiment.Control for device and micro-base station embodiment for virtual macro base station, owing to it is substantially corresponding with embodiment of the method, so what describe is fairly simple, relevant part illustrates referring to the part of embodiment of the method.
The embodiment of the present invention additionally provides a kind of virtual macro base station and controls device and micro-base station, below will be described separately.
Fig. 6 is the structural representation that the present invention plants virtual macro base station control one embodiment of device.
As shown in Figure 6, virtual macro base station controls device 101 and includes: downlink information transmitting element 601, for sending downlink information to micro-base station of its administration, in order to downlink information is sent to the terminal in its coverage by micro-base station, with the coverage of expanded downstream information.
Wherein, downlink information includes all downlink information that virtual macro base station issues, and specifically can include chain of command information and service surface information.As a non-limiting example, downlink information can be such as RRC signaling.
Plant in another embodiment that virtual macro base station controls device in the present invention, referring to Fig. 6, virtual macro base station controls device 101 and can also include: uplink information receives unit 602, for receiving the uplink information carrying out self terminal that micro-base station sends, to expand the coverage of uplink information.
Wherein, uplink information includes all up-link informations of terminal to report, specifically can include ascending control information and business information.As a non-limiting example, uplink information can be radio link quality information.
Planting in another embodiment that virtual macro base station controls device in the present invention, referring to Fig. 6, uplink information receives unit 602, and the uplink information carrying out self terminal being additionally operable to multiple micro-base stations are sent carries out diversity reception, to expand the coverage of uplink information.
Planting in another embodiment that virtual macro base station controls device in the present invention, referring to Fig. 6, virtual macro base station controls device 101 and can also include: Radio Resource coordination unit 603, and being used for according to uplink information is that Radio Resource is coordinated in micro-base station.
Virtual macro base station in above-described embodiment controls device and can communicate with each micro-base station, the channel communicated between this device with terminal is set up by micro-base station, service layer can be terminal service by micro-base station, thus realizing dual link network plan, the program goes for the scene not having macro base station to cover, such as slight networking scene.Dual link network plan can reduce interference, reduce switching, promotes network performance.
Fig. 7 is the structural representation of one embodiment in the micro-base station of the present invention.
As it is shown in fig. 7, micro-base station 102 includes: downlink information Transmit-Receive Unit 701, the downlink information sent for virtual macro base station controls device is sent to the terminal in its coverage, with the coverage of expanded downstream information.Wherein, downlink information includes all downlink information that virtual macro base station issues, and specifically can include chain of command information and service surface information.As a non-limiting example, downlink information can be such as RRC signaling.
Plant in another embodiment of micro-base station in the present invention, referring to Fig. 7, micro-base station 102 can also include: uplink information Transmit-Receive Unit 702, for receiving the uplink information that terminal sends, and it is sent to virtual macro base station control device, to expand the coverage of uplink information.Wherein, uplink information can include all up-link informations of terminal to report, specifically can include ascending control information and business information.As a non-limiting example, uplink information can be radio link quality information.
Micro-base station in above-described embodiment can control device with virtual macro base station and communicate, the channel that virtual macro base station controls to communicate between device and terminal is set up by micro-base station, service layer can be terminal service by micro-base station, thus realizing dual link network plan, the program goes for the scene not having macro base station to cover, such as slight networking scene.Dual link network plan can reduce interference, reduce switching, promotes network performance.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can be completed by the hardware that programmed instruction is relevant, aforesaid program can be stored in a computer read/write memory medium, this program upon execution, performs to include the step of said method embodiment；And aforesaid storage medium includes: the various media that can store program code such as ROM, RAM, magnetic disc or CDs.
Description of the invention provides for example with for the purpose of describing, and is not exhaustively or limit the invention to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is in order to principles of the invention and practical application are better described, and makes those of ordinary skill in the art it will be appreciated that the present invention is thus design is suitable to the various embodiments with various amendments of special-purpose.
Claims (18)
1. an information transceiving method, it is characterised in that including:
Virtual macro base station controls device and sends downlink information to micro-base station of its administration；
Described downlink information is sent to the terminal in its coverage by described micro-base station, to extend the coverage of described downlink information.
2. method according to claim 1, it is characterised in that also include:
Described micro-base station receives the uplink information that described terminal sends, and is sent to described virtual macro base station control device；
Described virtual macro base station controls device and receives the uplink information that described micro-base station sends, to extend the coverage of described uplink information.
3. method according to claim 1, it is characterised in that
Described downlink information is sent respectively to the terminal in its coverage by multiple described micro-base stations, in order to described downlink information is carried out diversity reception by described terminal, to extend the coverage of described downlink information.
4. method according to claim 2, it is characterised in that
Multiple described micro-base stations receive the uplink information that described terminal sends respectively, and are sent to described virtual macro base station control device；
The uplink information that multiple described micro-base stations are sent by described virtual macro base station control device carries out diversity reception, to extend the coverage of described uplink information.
5. method according to claim 2, it is characterised in that also include:
It is that Radio Resource is coordinated in micro-base station that described virtual macro base station controls device according to uplink information.
6. the method according to any one of claim 1-5, it is characterised in that described downlink information includes chain of command information.
7. the method according to claim 2,4 or 5, it is characterised in that described uplink information includes radio link quality information.
8. a virtual macro base station controls device, it is characterised in that including:
Downlink information transmitting element, for sending downlink information to micro-base station of its administration, in order to described downlink information is sent to the terminal in its coverage by described micro-base station, to extend the coverage of described downlink information.
9. device according to claim 8, it is characterised in that also include:
Uplink information receives unit, for receiving the uplink information carrying out self terminal that described micro-base station sends, to extend the coverage of described uplink information.
10. device according to claim 9, it is characterised in that
Described uplink information receives unit, and the uplink information carrying out self terminal being additionally operable to multiple described micro-base stations are sent carries out diversity reception, to extend the coverage of described uplink information.
11. device according to claim 9, it is characterised in that also include:
Radio Resource coordination unit, being used for according to uplink information is that Radio Resource is coordinated in micro-base station.
12. the device described in-11 any one according to Claim 8, it is characterised in that described downlink information includes chain of command information.
13. according to the device described in any one of claim 9-11, it is characterised in that described uplink information includes radio link quality information.
14. a micro-base station, it is characterised in that including:
Downlink information Transmit-Receive Unit, controls, for receiving virtual macro base station, the downlink information that device sends, and is sent to the terminal in its coverage, to extend the coverage of described downlink information.
15. micro-base station according to claim 14, it is characterised in that also include:
Uplink information Transmit-Receive Unit, for receiving the uplink information that described terminal sends, and is sent to described virtual macro base station control device, to extend the coverage of described uplink information.
16. micro-base station according to claim 14, it is characterised in that described downlink information includes chain of command information.
17. micro-base station according to claim 15, it is characterised in that described uplink information includes radio link quality information.
18. an information transmission system, it is characterised in that including: the virtual macro base station described in any one of claim 8-13 controls device and the micro-base station described in any one of claim 14-17.
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