CN108199999A - The configuration method and device of carrier control domain - Google Patents
The configuration method and device of carrier control domain Download PDFInfo
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- CN108199999A CN108199999A CN201810019278.1A CN201810019278A CN108199999A CN 108199999 A CN108199999 A CN 108199999A CN 201810019278 A CN201810019278 A CN 201810019278A CN 108199999 A CN108199999 A CN 108199999A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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Abstract
The invention discloses the configuration method and device of a kind of carrier control domain, wherein, the configuration method of the carrier control domain includes：The occupied resource information of the control domain of another part carrier wave is configured by matching the partial carrier wave in carrier wave in network side.In the present invention, the UE for supporting the carrier wave of non-backward compatible according to the occupied resource information of control domain of the carrier wave of the non-backward compatible on the carrier wave of the backward compatibility listened to, can utilize the carrier wave of non-backward compatible to realize the scheduling of own service data.The present invention improves the robustness of multicarrier system carrier wave, by in carrier wave control domain configuration can carrier wave configuration can be suitble to different scenes, improve the utilization ratio of carrier resource, and improve the flexibility of multicarrier system.
Description
The application be application No. is 201110345903.X, the applying date be November 04, entitled " carrier wave in 2011
The divisional application of the Chinese patent application of the configuration method and device of control domain ".
Technical field
The present invention relates in multicarrier system by the money of the control domain of backward compatibility carriers carry carrier wave centering other carrier waves
The configuration method and device of the technology of source information more particularly to a kind of carrier control domain.
Background technology
Development with Mobile Communication Industry and the continuous growth to mobile data services demand, people are to mobile communication
Rate and service quality (QoS, Quality of Service) requirement it is higher and higher, then in 3G (Third Generation) Moblie
Before (3G, 3rd Generation) is there are no extensive commercialization, the research of next generation mobile communication system has just been had begun
And development, wherein comparing typically third generation partner program (3GPP, 3rd Generation Partnership
Project) long term evolution (LTE, Long Term Evolution) project started, the available maximum spectrum band of LTE system
Width is 20MHz (megahertz).With the further evolution of network, evolution systems of the evolution LTE (LTE-A) as LTE, Ke Yiti
For being up to the spectral bandwidth of 100MHz, support more flexible higher-quality communication, at the same lte-a system have it is backward simultaneous well
Capacitive.There are multiple component carriers (CC, Component Carrier) in lte-a system, a LTE terminal can only operate in
On the CC of some backward compatibility, and the stronger LTE-A terminals of ability can carry out data transmission on multiple CC simultaneously.It is i.e. real
The terminal of existing LTE-A sends and receives data in multiple component carriers simultaneously, so as to achieve the purpose that promote bandwidth.The technology
It is referred to as multi-carrier polymerizing technology.
Lte-a system supports multi-carrier polymerizing technology, by multi-carrier polymerizing in the hope of reaching the bandwidth for transmission data of bigger.
Usually, most 5 carrier waves of base station subordinate, these carrier waves are referred to as component carrier, are all the carrier waves with backwards compatibility.
The channel and reference signal there are many original system are configured in backward compatibility carrier wave, to help the UE of those legacy versions
It works normally wherein.But the design of these channels and reference signal, which is all based on original system, to be designed, from current
From the point of view of, there are it is less efficient the problem of.Such as when the UE negligible amounts of legacy version in system, system is not necessarily to will be every
One carrier wave is configured to the form of compatible carrier wave.With the development of multi-carrier polymerizing technology, if be configured in each carrier wave
Original channel and reference signal so that carrier wave utilization ratio becomes relatively low, particularly the efficiency of control domain.Because control domain exists
Expense in LTE is bigger, occupies the resource of each subframe 1/12~4/12.Even if using the compatible carrier wave without UE,
And need that above-mentioned control domain is configured on compatible carrier wave, this will obviously waste the resource of carrier wave.For multicarrier system
Speech, each carrier wave have accounted for above-mentioned resource by control domain, and overall overhead is larger, and the utilization ratio for leading to carrier wave is relatively low.
Invention content
In view of this, it is a primary object of the present invention to provide a kind of configuration method of carrier control domain and device, can keep away
Exempting from the control domain in non-backward compatible carrier waves cannot be obtained by UE, and can be realized according to the load situation of carrier wave for UE access
Control domain flexible configuration, such as can will be configured at carrier wave non-backward compatible carrier waves for the control domain of UE access, it is rear to
When the UE quantity of compatible carrier wave access is more, related UE can be notified to be accessed by non-backward compatible carrier waves.
In order to achieve the above objectives, the technical proposal of the invention is realized in this way：
A kind of configuration method of carrier control domain, including：
The occupied resource of the control domain of another part carrier wave is configured by matching the partial carrier wave in carrier wave in network side
Information.
Preferably, the method further includes：
The network side is also used by matching the partial carrier wave in carrier wave the control domain of another part carrier wave is configured
Reference signal information.
Preferably, the partial carrier wave is backward compatibility carrier wave；
Another part carrier wave is at least one of following carrier wave：
Fragment carrier wave, extension carrier wave, backward compatibility carrier wave, the carrier wave used with backward compatibility carrier pairings.
Preferably, the occupied resource information of control domain of another part carrier wave is：In another part carrier wave
Subframe in the location information of the OFDM symbol number that occupies and/or OFDM symbol；And/or in another part carrier wave
The PRB numbers and/or the location information of PRB occupied in subframe.
Preferably, the method further includes：
The network side is also notified in another part carrier wave by the partial carrier wave matched in carrier wave with the presence or absence of use
In the information of the control domain of user equipment UE access.
Preferably, the reference signal information include the reference signal type, the period, pattern information.
Preferably, the control domain is at least one of PDCCH, PCFICH and PHICH channels；
The reference signal is cell special reference CRS, the reference signal DMRS of demodulation and channel status instruction join
Examine at least one of signal CSI-RS.
Preferably, another part carrier wave has more than two control domains；Wherein, at least one is PDCCH, described
PDCCH is the resource that UE dispatches another part carrier wave, and other control domains are removed dispatches another part carrier wave for UE
It is also UE scheduling and the resource of the carrier wave of another part carrier pairings outside resource.
A kind of configuration device of carrier control domain, including：
Dispensing unit, for being configured occupied by the control domain of another part carrier wave by matching the partial carrier wave in carrier wave
Resource information.
Preferably, also the control of another part carrier wave is configured by matching the partial carrier wave in carrier wave in the dispensing unit
Reference signal information used in domain.
Preferably, the partial carrier wave is backward compatibility carrier wave；
Another part carrier wave is at least one of following carrier wave：
Fragment carrier wave, extension carrier wave, backward compatibility carrier wave, the carrier wave used with backward compatibility carrier pairings.
Preferably, the occupied resource information of control domain of another part carrier wave is：In another part carrier wave
Subframe in the location information of the OFDM symbol number that occupies and/or OFDM symbol；And/or in another part carrier wave
The PRB numbers and/or the location information of PRB occupied in subframe.
Preferably, described device further includes：
Notification unit, for also notifying to whether there is in another part carrier wave by the partial carrier wave matched in carrier wave
For the information of the control domain of UE access.
Preferably, the reference signal information include the reference signal type, the period, pattern information.
Preferably, the control domain is at least one of PDCCH, PCFICH and PHICH channels；
The reference signal is at least one of CRS, DMRS and CSI-RS.
In the present invention, by the carrier wave of non-backward compatible and the carrier wave component carrier pair of backward compatibility, network side passes through pairing
The carrier wave of backward compatibility in carrier wave is configured occupied by the control domain of the carrier wave of the carrier wave of non-backward compatible and/or backward compatibility
Resource information.In this way, support that the UE of the carrier wave of non-backward compatible can be according to non-on the carrier wave of the backward compatibility listened to
The occupied resource information of control domain of the carrier wave of backward compatibility realizes own service data using the carrier wave of non-backward compatible
Scheduling.The present invention improves the robustness of multicarrier system carrier wave, can be carried by the configuration for control domain in carrier wave
Wave configuration can be suitble to different scenes, improve the utilization ratio of carrier resource, and improve the flexibility of multicarrier system.
Description of the drawings
Fig. 1 is the composition structure diagram of detection reference signal configuration device of the embodiment of the present invention.
Specific embodiment
The present invention basic thought be：Flexible configuration is carried out by the control domain of carrier wave that a carrier wave pair is matched with it,
To promote the utilization ratio of carrier wave.Also, the present invention combines the technical characterstic of multicarrier, gives base station and carries out carrier pairings
Principle and base station are matched by a certain carrier wave 1 (referring to the carrier wave for not needing to that special control domain is configured) to notify and indicate with it
To carrier wave 2 (refer to and need to configure the carrier wave of special control domain, if desired in Physical Resource Block (PRB, Physical
Resource Block)) in the configuring condition of control domain and carrier wave 2 in reference signal configuring condition.Preferably, carrier wave
2 cannot provide access capability for UE, it is impossible to provide retention for UE, carrier wave 2 is unable to independent operation, needs and compatible carrier wave
Pairing uses.That is, would operate in the UE in carrier wave 2, access communications system obtains the control in carrier wave 1 all from carrier wave 1
After configuration of territory information processed, just by base station scheduling to carrier wave 2.
To make the purpose of the present invention, technical solution and advantage are more clearly understood, right by the following examples and with reference to attached drawing
The present invention is further described.
Base station needs first to determine the relationship of pairing carrier wave, and the pairing between carrier wave can be one-to-many, many-one, Huo Zheyi
To one.Such as carrier wave 1 is matched with carrier wave 2, then can select carrier wave 1 come control domain in indication carrier wave 2 resource information or
Person selects carrier wave 2 to carry out the control domain information in indication carrier wave 1, depends primarily on that carrier wave in carrier wave 1 or carrier wave 2 here
Control domain can be reconfigured, cannot generally provide the control domain of the carrier wave of access capability can be reconfigured (such as
It can be configured as and carried by PDCCH, can also be carried by PRB).It is used to indicate the carrier wave of other carrier control domain resource informations
The flexible configuration of control domain cannot be carried out, can be configured to avoid the control domain of each carrier wave in system, and UE
Initial access cannot be guaranteed, and therefore, the control domain of at least one carrier wave is to be pre-configured in multi-carrier communications systems
Alright, it is impossible to be reconfigured.Base station can also match carrier wave 1 and carrier wave 2, carrier wave 3 ..., be referred to later by carrier wave 1
Show the resource information of the control domain in multiple carrier waves such as carrier wave 2, carrier wave 3, here it is one-to-many matching method, this mode is non-
The often lighter situation of suitable load of base station only retains a carrier wave 1 and provides normal UE access and be resident, base station can root
According to loading demand, control domain is configured flexibly to other carrier waves, if not being configured to the control of UE access in remaining carrier wave
Domain can play and not send these power for reaching energy-efficient purpose for the control domain of UE access and causing the carrier wave
Equalization, it is easy to accomplish.Base station can also match carrier wave 1, carrier wave 2, carrier wave 3 and carrier wave 4, later by carrier wave 1, carrier wave 2,
The control domain information of carrier wave 4 is indicated respectively in carrier wave 3, here it is many-to-one situation, the UE being very suitable in carrier wave 1,2,3 is straight
Connect the situation for being directly dispatched to from the carrier wave to be worked and working in carrier wave 4.If only there are one control domains in carrier wave 4, then carry
The resource information of control domain in the carrier wave 4 indicated in wave 1,2,3 is identical.If in indication carrier wave 4 in carrier wave 1,2,3
Control domain resource information difference when, then can be respectively that UE in carrier wave 1,2,3 provides corresponding control domain in carrier wave 4,
Namely with the presence of multiple control domains in carrier wave 4.Here be also included in a carrier wave indicate it is multiple and different in another carrier wave
The configuration information of control domain.For example, if there are two control domains in carrier wave 2, then can be indicated by the pairing carrier wave of carrier wave 2
The resource information of each control domain in carrier wave 2.
Here two different control domains are configured in a carrier wave, can be used for what two kinds of types of service differed greatly
UE, for example, it is a kind of for supporting the UE of common unicast service (unicast), and another kind is used to support machine type communication
The UE of (MTC, Machine Type Communication) business.Due between above two business there are larger difference,
Therefore the control domain for being more suitable for specific business can be designed according to different business characteristics, so as to promote the effect of Service control
Rate.
When determining carrier wave relationship, the carrier wave in same band is preferentially selected to be matched, because of the load in same band
Carrier characteristics (such as penetration capacity, obstacle ability) relatively, are easy to keep synchronizing each other, match in this way wave each other
Do not have to be to have certain benefit during synchronization mechanism in carrier wave.If there are RF radios in system to zoom out (RRH, Remote
Radio Head) node, then the carrier wave from same node is selected to be matched.It can ensure that match carrier wave passes each other in this way
Defeated path is identical.
In the case of above-mentioned carrier wave 1 and carrier wave 2 are configured, it is assumed that the control domain of carrier wave 2 is configurable.In this way, carrying
The UE that works in wave 2 needs the access communications system from carrier wave 1, i.e. a UE is from carrier wave 1 in access system, then base station root
It is used according to needing carrier wave 2 is configured for the UE, while base station needs to notify UE, the resource information of control domain in carrier wave 2.The present invention
In, the dedicated control signaling of point to point system may be used to notify the resource information of control domain in UE carrier waves 2, can also use
Wireless heterogeneous networks (RRC, Radio Resource Control) message, media access control control unit (MAC CE,
Media Access Control-Control Element) or carrier wave 1 in PDCCH indicate the control domain of UE carrier waves 2
Resource information etc..Base station can also notify UE by the way of Cell Broadcast CB, at this time can be in the system broadcast information of carrier wave 1
In a certain SIB in carry out the resource information of control domain in all UE carrier waves 2 in notifying cell.
According to the present invention, for example, carrier wave 1 can be backward compatibility carrier wave, carrier wave 2 is fragment carrier wave (fragment carrier wave
(Carrier Segment) is that a kind of carrier wave of non-backward compatible (refers to not provide backward compatibility for version before
Property), fragment carrier wave cannot be independently operated, and can only be used as a part for the bandwidth of a certain backward compatibility carrier wave, after increase
To the transmittability of the data field of compatible carrier wave.The sum of fragment carrier wave and the bandwidth of backward compatibility carrier wave of pairing are no more than
110RB) or extension carrier wave (is a kind of non-backward compatible carrier waves of dependent operation, it is necessary to a certain backward compatibility carrier pairings
It uses, as a branch of backward compatibility carrier wave, is runed by way of carrier aggregation, extension carrier wave is necessary for existing LTE
One of six kinds of bandwidth (1.4MHz, 3MHz, 5MHz, 10MHz, 15MHz and 20MHz) that system is supported or carrier wave 2 are cannot be independent
Operation needs to use with backward compatibility carrier pairings.It is the control domain for not being used for UE access under default situations, in carrier wave 2,
It is to be worked by carrier wave 1 to dispatch resource distribution situations of the UE in carrier wave 2.When the access from carrier wave 1 and work
UE, base station can work with scheduling portion UE in carrier wave 2, but control information be still from carrier wave 1, in this way with
Increasing for UE quantity is accessed in carrier wave 1, the control domain in carrier wave 1 just will appear overload, generate the feelings such as the nervous, obstruction of resource
Condition leads to that system requirements cannot be met.Base station needs the control domain for being configured to UE access in carrier wave 2 (to be held by PDCCH at this time
Carry), it is responsible for UE in scheduling carrier wave 2, and base station notifies those UE to work in carrier wave 2, carrier wave 2 by dedicated control signaling
It is configured for the control domain information for UE access.The UE to work in carrier wave 2 in this way can be obtained by the control domain in carrier wave 2
Scheduling information.The pressure of the control domain in carrier wave 1 is also just alleviated in this way, so as to improve the utilization ratio of control domain.Work as load
During the UE negligible amounts to work in wave 2, base station can notify the UE in carrier wave 2 by carrier wave 1, and control domain is not configured in carrier wave 2,
It is operated in UE in carrier wave 2 resource information (is carried) by PRB by the control domain in carrier wave 1 and obtain scheduling information in carrier wave 2.This
Sample can achieve the purpose that fragment carrier wave or extend carrier wave in control domain according to base station demand flexible configuration.
In addition, base station can also be selected as needed through the reference signal information in the notice of carrier wave 1 and indication carrier wave 2,
The reference signal that the reference signal and data field used including control domain uses.UE can be helped well in this way using reference
Signal demodulation control numeric field data.For example, being configured with control domain in carrier wave 1 in indication carrier wave 2, and give the resource-niche of control domain
It puts, the information such as signaling format, while base station reinforms the reference signal of the use of control domain described in UE carrier waves 2 by carrier wave 1
Information, for example, using reference signal such as at least one of cell special reference CRS, DM-RS and CSI-RS etc., wherein
Also need to provide the configuration cycle information of the reference signal of reference signal, drawing information, location information, offset information etc., with side
It helps and realizes that UE accurately knows that the reference signal in carrier wave 2 sends situation.Specific advice method can lead to control domain above
Know that mode is identical.
The range that special control domain in carrier wave 2 can dispatch is not restricted in the present invention, such as can only dispatch load
Either running time-frequency resource or scheduling carrier wave 1 or other carrier waves are (non-in scheduling carrier wave 1 and carrier wave 2 simultaneously for running time-frequency resource in wave 2
Carrier wave 1 and carrier wave 2, such as carrier wave 3) in resource.Which or which subcarrier time-frequency resource is specifically dispatched, base station can also lead to
Cross carrier wave 1 notify UE, a kind of determining resource can also be cured as, for example, be preferably cured as in only scheduling carrier wave 2 when
Frequency resource.
The resource information of the control domain in indication carrier wave 2 is notified in carrier wave 1 to be, the OFDM symbols that instruction control domain occupies
Number position and/or number, such as when control domain carries out mapping carrying according to OFDM symbol, it is possible to where indicating control domain
The position of OFDM symbol and number such as occupy that several OFDM symbol, for another example, if control domain is according to the starting OFDM in subframe
Symbol Continuous Mappings then can only indicate number.For another example, if only regulation control domain only takes up an OFDM symbol
(this is the business special for some, such as low end UE business), then only can with indicating positions, as which
OFDM symbol.
If the control domain in carrier wave 2 is mapped according to PRB, then base station needs to notify and indicate to carry in carrier wave 1
The number for the PRB that control domain in wave 2 occupies and/or position, such as the number of PRB that control domain occupies are notified to UE.Number
Number and location can be embodied simultaneously.
Also can indicate that the form that information is controlled in carrier wave 2, such as control information in indication carrier wave 2 in carrier wave 1 is
PDCCH forms be also non-PDCCH forms other new forms, such as E-PDCCH.It directly helps to control in UE or carrier wave 2
The form in domain is conducive to UE and receives control domain.If have multiple control message forms in carrier wave 2, then base station in carrier wave 1 by
A instruction control message form.
Preferably, control domain includes following Physical Downlink Control Channel (PDCCH, Physical Downlink
Control Channel), Physical Control Format Indicator Channel (PCFICH, Physical Control Format
Indicator Channel), physics HARQ (Hybrid Automatic Repeat Request) instruction channel (PHICH,
Physical HARQ Indicator Channel), evolution Physical Downlink Control Channel (E-PDCCH, Enhanced
One or more of Physical Control Format Indicator Channel).It can also be during standard words
Newly-designed control channel or information.
Preferably, if indicating only a form of control domain and information format for carrier wave 2 in system, then base station
It can notify by carrier wave 1 and whether there is the control domain in indication carrier wave 2, the control of carrier wave 2 can also be promoted in this way
Configuration of territory flexibility ratio, so as to adjust working method in time when promoting UE from 1 incoming carrier 2 of carrier wave.
Preferably, above-mentioned reference signal includes cell special reference (CRS, Cell-specific Reference
Signals), the reference signal (DMRS, Demodulation Reference Signal) of demodulation, channel status instruction (CSI-
RS, Channel Status Information Reference Signal) it is one or more.Such as it can refer in carrier wave 1
Show that a certain reference signal of configuration or a variety of reference signals are configured simultaneously in carrier wave 2.And it should notify to carry in carrier wave 1
Mapping pattern in period of the reference signal of configuration in wave 2, subframe, offset.
Below by way of specific example, the essence for technical solution that the present invention is furture elucidated.
Embodiment one
Assuming that there are 3 carrier waves in the base station of a support multi-carrier polymerizing, a 10MHz (being denoted as CC1), 2 5MHz are (respectively
It is denoted as CC2, CC3), CC1, CC2 and CC3 frequency are continuous successively.Assuming that CC1, which is a compatible carrier wave, (supports LTE R8/R9/
The UE work and access of R10), CC2 and CC3 are not a compatible carrier waves, and do not provide the carrier wave of access and resident functions.
Base station determines one of carrier wave to notify and indicate the resource information of the control domain of other carrier waves, determines the carrier wave
Principle be, the carrier wave tool can provide access capability for UE.Preferably, which has backwards compatibility, secondly, if multiple
Carrier wave all has These characteristics, then which carrier wave base station can determine to select as notice according to the demand residing for itself
With the carrier wave of the resource information of control domain for indicating other carrier waves, such as when there are the UE of a large amount of M2M business in communication system
When, base station can select the smaller carrier wave of some bandwidth to carry this kind of business, because the business characteristic of this kind of UE is that quantity is small,
Number of users is more.When number of users is fewer, the traffic than it is relatively low when, base station can select the smaller carrier wave of carrier bandwidths to be used as
The carrier wave being used to refer to, it is subsequent energy saving to be conducive to base station in this way.By only having in this present embodiment there are one carrier wave
Access capability, so selecting CC1 as indication carrier wave.
If there are a large amount of low end UE business or M2M business in system, then base station can be by the control in CC2
Configuration of territory is to be more suitable for the control domain of above-mentioned business transmission.Specifically, base station by the system broadcast message of CC1 notifying and
Indicate the resource related information of control domain and/or reference signal configuration information in CC2.Such as believed by a certain system in CC2
Cease the control domain resource related information in other carrier waves of addition instruction in block (SIB, System Information Block)
And the configuration information of reference signal.Base station can dispatch and work in UE to the CC2 of cut-in operation from CC1 in this way,
And due to being configured with more rational control domain in CC2, the efficiency that the control domain in CC2 utilizes can be promoted.Here base station
Can CC1 and CC2 be subjected to carrier pairings processing in advance, i.e., due to there is no access capability information in CC2, only transmit data
Ability so base station can in advance match CC1 and CC2, a pairing thus can be directly newly increased in CC1 and is carried
One pairing carrier reference signal Resource Information Element of Resource Information Element and increase of wave control domain.If CC1 with it is multiple
CC is matched, such as CC1 and CC2 and CC3 are paired simultaneously, then then needs further to indicate in above-mentioned increased information unit
It is the control domain resource information of which CC and reference signal configuration information, does not otherwise need to indicate specific carrier wave.
If base station is needed, by the UE of part legacy version in CC1, (UE of LTE R8/R9/R10, refers to and does not support the present invention
The UE of technical solution) it is dispatched in CC3 and works, then the above method may be used in base station at this time, and CC2 is indicated in CC1
Control domain resource related information and reference signal configuration information, at this time base station can be CC2 be configured LTE R8/R9/R10UE branch
Hold control domain form, such as the structure of PDCCH, can further be indicated in CC1 CC2 PDCCH occupy OFDM symbol with
And PHICH, these can also directly be configured certainly sends in CC2, such as exists according to the LTE R8/R9/R10 forms supported
It is configured in CC2, in this way, after UE enters CC2 work, can control independently be parsed by the reception of relevant information in CC2
Domain processed.
It works if base station needs new version UE in CC1 being dispatched in CC2, the type of service of these UE is unicast industry
Business is not suitable for the control domain using above-mentioned low end UE business or M2M business, then base station can be notified by CC1
PDCCH modes, original control for low end UE business or M2M business configurations are configured to control domain in indication carrier wave 2
Domain processed can continue to retain, and be equivalent to the resource related information for indicating two different control domains for CC2 by CC1 at this time.
Embodiment 2
Assuming that there are 3 carrier waves in the base station of a support multi-carrier polymerizing, a 10MHz (being denoted as CC1), 2 5MHz are (respectively
It is denoted as CC2, CC3), CC1, CC2 and CC3 frequency are continuous successively.Assuming that CC1 and CC2, which are a compatible carrier waves, (supports LTE
The UE work and access of R8/R9/R10), CC3 is not a compatible carrier wave, and does not provide the carrier wave of access and resident functions, is
Fragment carrier wave or extension carrier wave.Assuming that CC1 and CC3 pairings use.
Base station determines the need for that control domain is configured in CC3, for example, base station carries out the data transmission mistake of UE in CC3
Cheng Zhong, as the UE quantity for needing to transmit increases, the control domain resource in the CC1 used with CC3 pairings will appear anxiety (CC3
The data dispatch of middle UE is scheduled by the control domain in CC1), base station may be used at the mode of the present invention at this time
If base station is notified and indicated UE by CC1, control domain is configured in CC3 for reason, and the control domain for further indicating configuration is PDCCH,
Relevant configuration mode is identical with the PDCCH in existing protocol LTE R10 agreements, is demodulated using CRS.At this time there are two types of base stations
Mode notifies the resource information of CC3 control domains in CC1, and a kind of is to notify to match in above-mentioned CC3 in the system broadcast information of CC1
It has put PDCCH, PCFICH, PHICH and has been demodulated using CRS, under this mode, the UE that is just working and be resident in CC1
Above- mentioned information will be received.Another kind is notified using point-to-point mode, and base station is to being in the needs of connection status
The UE to work in CC3 notifies to be configured with PDCCH, PCFICH, PHICH etc. in CC3 by its dedicated control channel.Base station
After the resource information of control domain for notifying and indicating CC3 by CC1, the control domain will be configured in base station in CC3, then directly
The UE to work in CC3 is dispatched by the control domain of CC3.When the control domain scheduling UE of CC1 works in CC3, if necessary to adjust
The UE quantity of degree is very more, then situations such as control domain in CC1 just will appear resource anxiety, and scheduling is blocked, this exemplary skill
Art scheme can solve the above problems.If with the decline of the quantity and the traffic of UE in CC3, base station can be led to by CC1
Know and indicate UE, without configuration control domain in CC3, advice method is identical with aforementioned advice method, and hereafter base station is in CC3
The UE of work is scheduled by the control domain of CC1, so as to obtain more resource transmission data in CC3.
Passing through above embodiment, it can be seen that the control domain of dynamic configuration carrier wave can obtain larger benefit,
Especially for fragment carrier wave or extension carrier wave, the resource of control domain can be made full use of, its conversion is made to provide in order to control in time
Source or data resource so that the flexibility of system is promoted.
Embodiment three
Assuming that there are 3 carrier waves in the base station of a support multi-carrier polymerizing, a 10MHz (being denoted as CC1), 2 5MHz are (respectively
It is denoted as CC2, CC3), CC1, CC2 and CC3 frequency are continuous successively.Assuming that CC1 and CC2, which are backward compatibility carrier waves, (supports LTE
The UE work and access of R8/R9/R10), CC3 is not backward compatibility carrier wave, and does not provide the carrier wave of access and resident functions, is
Fragment carrier wave or extension carrier wave.Assuming that CC1 and CC3 pairings use.
In some cases, different business is supported in base station, such as supports unicast service, MBMS business, M2M business simultaneously
Deng, each have their own feature of these business, so corresponding transmission mode, control channel, Signalling Designing etc. are different, it is different
Business designs more efficient control domain, such as the control domain PDCCH of unicast service and MBMS industry according to the characteristics of its own
The control domain MCCH of business is differed completely.
With development of the wireless communication technique in every field, fusion, base station supports that multiple business are inevitable simultaneously
's.When unicast service and M2M business are supported in a base station simultaneously, following mode may be used to implement in base station.
CC3 can only rely on pairing as the control domain that fragment carrier wave or extension carrier wave are without itself in CC3
Carrier wave CC1 is scheduled.Base station preferentially the UE of M2M can be dispatched in CC3 be worked (be preferentially here because
M2M business is without the concern for compatibility).Or the UE of unicast service is dispatched in CC3 and is worked.
When UE is dispatched to by base station to be worked in CC3, base station can be notified and be indicated by CC1 to need what is dispatched
The information for the control domain being configured in UECC3, such as the resource information of the UE control domains of M2M business is indicated to, such as control channel
Resource location, signaling format, signaling etc., it is ensured that the UE of M2M can be accurately received control domain in CC3.
Further, the control domain of unicast service can be configured in base station in CC3, and base station is notified and referred to by CC1 at this time
Show UE, there are two control domains in CC3.Unicast service UE carries out the reception of data, the UE of M2M according to the control domain of unicast later
The reception of data is carried out according to the control domain of M2M.Can ensure the control domain of two class business so all has higher efficiency.
Example IV
Have two kinds of reference signals in system at present and be respectively used to UE demodulation control domains, be CRS and DM-RS respectively, wherein
Also it is CRS and CSI-RS respectively there are two types of the reference signal that channel quality measurement is carried out for UE.
When base station is notified by CC1 and indicates the control domain resource information in UECC3, it should be pointed out that the reference in CC3
The configuring condition of signal, such as the related letter such as the sending cycle of CRS reference signals and reference signal, pattern is configured in CC3
Breath, to ensure that the UE entered in CC3 can accurately know the reference signal deployment scenario in CC3.
Such as base station can indicate to be configured with configuration period, mapping pattern information of CRS, CRS etc. in UECC3 by CC1,
The UE being operated in this way in CC3 can determine to demodulate control domain and data field using CRS by reference to signal message, with
And channel quality measurement is carried out by CRS.
Such as base station can indicate to be configured with CSI-RS in UECC3 by CC1, and CRS is not configured, is configured with DM-RS, this
The UE that sample is operated in CC3 can carry out channel measurement by CSI-RS, and the demodulation of data is carried out by DM-RS.At this time by
In the existing configuration reasons of DM-RS, cause UE that can not use the demodulation of DM-RS progress control domains (control domain for referring to PDCCH forms),
So in the present invention base station also need to by CC1 notify and indicate UECC3 in control domain using which type of reference signal into
Row demodulation, such as when control domain is configured to PDCCH forms in CC3, base station needs to indicate DM-RS demodulation using CRS, and base station
The configuration in the PDCCH resource of CC3 is needed to send CRS.Base station can also notify to be configured in PDCCH resource position in UECC3
The mapping pattern information of DM-RS and DM-RS, such UE can demodulate the PDCCH in CC3 according to DM-RS.
It will appreciated by the skilled person that all or part of step in the above method can be instructed by program
Related hardware is completed, and described program can be stored in computer readable storage medium, such as read-only memory, disk or CD
Deng.Optionally, all or part of step of above-described embodiment can also be realized using one or more integrated circuits.Accordingly
Ground, the form that hardware may be used in each module/unit in above-described embodiment are realized, can also use the shape of software function module
Formula is realized.The present invention is not limited to the combinations of the hardware and software of any particular form.
Fig. 1 is the composition structure diagram of the configuration device of carrier control domain of the embodiment of the present invention, as shown in Figure 1, this hair
The configuration device of bright embodiment carrier control domain includes：
Dispensing unit 10, for being configured shared by the control domain of another part carrier wave by matching the partial carrier wave in carrier wave
Resource information.
Also the control domain of another part carrier wave institute is configured by matching the partial carrier wave in carrier wave in above-mentioned dispensing unit 10
The reference signal information used.
Above-mentioned partial carrier wave is backward compatibility carrier wave；
Another part carrier wave is at least one of following carrier wave：
Fragment carrier wave, extension carrier wave, backward compatibility carrier wave, the carrier wave used with backward compatibility carrier pairings.
The occupied resource information of control domain of above-mentioned another part carrier wave is：In the subframe of another part carrier wave
The OFDM symbol number of occupancy and/or the location information of OFDM symbol；And/or it is accounted in the subframe of another part carrier wave
The location information of PRB numbers and/or PRB.
As shown in Figure 1, the configuration device of carrier control domain of the embodiment of the present invention further includes：
Notification unit 11, for also notifying whether deposited in another part carrier wave by the partial carrier wave matched in carrier wave
In the information of the control domain for UE access.
The reference signal information include the reference signal type, the period, pattern information.
The control domain is at least one of PDCCH, PCFICH and PHICH channels；
The reference signal is at least one of CRS, DMRS and CSI-RS.
Above-mentioned another part carrier wave has more than two control domains；Wherein, it is at least one to be for PDCCH, the PDCCH
UE dispatches the resource of another part carrier wave, other control domains in addition to the resource of another part carrier wave is dispatched for UE,
It is also UE scheduling and the resource of the carrier wave of another part carrier pairings.
It will be appreciated by those skilled in the art that the above-mentioned place in the configuration device of present invention carrier control domain shown in FIG. 1
Managing the function of unit can be realized by corresponding hardware circuit or processor and the corresponding mode for performing software, for example, on
Stating notification unit can be realized by antenna processing system.The correlation function of above-mentioned each processing unit, reference can be made to said carrier controls
The associated description of the embodiment of the configuration method in domain and understand.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (36)
1. a kind of method for processing business, which is characterized in that the method includes：
UE access communications systems from first carrier receive the occupied resource information of control domain of the second carrier wave；According to described
The control domain information of occupied the second carrier wave of asset information receipt of control domain of second carrier wave allows UE to be scheduled in described the
In nd carrier；
Wherein, UE access network is supported in the first carrier, the second carrier wave and first carrier are Independent Carrier Waves；Or, described
The corresponding bandwidth of one carrier wave supports UE access network, and the corresponding bandwidth of the second carrier wave and the corresponding bandwidth of the first carrier belong to
Same carrier wave.
2. the according to the method described in claim 1, it is characterized in that, occupied resource information of control domain of second carrier wave
It is that base station is configured and is sent from the first carrier；Or,
The occupied resource information of control domain of second carrier wave is a variety of to be configured in the second carrier wave by first carrier
Different types of control domain；The different types of control domain includes the control domain for being adapted to different service types.
3. the according to the method described in claim 1, it is characterized in that, occupied resource information of control domain of second carrier wave
For：First carrier indicates the occupied resource information of control domain of multiple second carrier waves；Or, multiple first carriers instruction one the
The occupied resource information of control domain of two carrier waves.
4. according to the method described in claim 1, it is characterized in that, UE access communications systems from first carrier, receive
The occupied resource information of control domain of second carrier wave, including：
The UE receives the first instruction information, the control of second carrier wave that the first instruction information is received for UE instructions
The second carrier wave corresponding to the occupied resource information in domain processed.
5. according to the method described in claim 1, it is characterized in that, the UE is scheduled for making when being worked in the second carrier wave
Control domain permission is sent from first carrier or the second carrier wave.
6. according to the method described in claim 1, it is characterized in that, the first carrier is backward compatibility carrier wave；
Second carrier wave is at least one of following carrier wave：
Fragment carrier wave, extension carrier wave, backward compatibility carrier wave.
7. the according to the method described in claim 1, it is characterized in that, occupied resource information of control domain of second carrier wave
It is one of the following：
Indicate the orthogonal frequency division multiplex OFDM number of symbols of control domain occupancy and/or the location information of OFDM symbol；
Indicate the Physical Resource Block PRB numbers of control domain occupancy and/or the location information of PRB.
8. according to the method described in claim 1, it is characterized in that, the control of second carrier wave is received one of in the following manner
The occupied resource information in domain processed：
The dedicated control signaling of point to point system, radio resource control RRC message, media access control control unit MAC CE disappear
The system broadcast message of breath, the PDCCH in first carrier and first carrier.
9. according to the method described in claim 1, it is characterized in that, the control domain of second carrier wave is physical down control letter
Road PDCCH, Physical Control Format Indicator Channel PCFICH, Physical HARQ Indicator Channel PHICH and evolution physical down control letter
At least one of road E-PDCCH channels.
10. according to the method described in claim 1, it is characterized in that, the control domain of second carrier wave carries for dispatching first
The running time-frequency resource of wave and/or the second carrier wave；The running time-frequency resource of first carrier and/or the second carrier wave is dispatched by the second carrier wave in base station
When, the corresponding carrier wave of the running time-frequency resource is sent to the UE by the second carrier wave.
11. according to the method described in claim 1, it is characterized in that, second carrier wave has more than two control domains；Its
In, at least one that the resource of second carrier wave is dispatched for UE for PDCCH, the PDCCH, other control domains are removed dispatches for UE
It is also UE scheduling and the resource of the carrier wave of second carrier pairings outside the resource of second carrier wave.
12. according to the method described in claim 1, it is characterized in that, the method further includes：
The UE also receives reference signal information used in the second carrier wave by first carrier, and the reference signal includes control
The reference signal that the reference signal or data field that domain uses use.
13. according to the method for claim 12, which is characterized in that the reference signal information is one of the following：
The reference signal information include the reference signal type, the period, pattern, position information；
The reference signal information includes the DMRS mapping pattern information being configured in PDCCH resource position；
Period of the reference signal information including reference signal, mapping pattern and offset in subframe.
14. method according to claim 12 or 13, which is characterized in that
The reference signal is cell special reference CRS, the reference signal DMRS of demodulation and channel status instruction are with reference to letter
At least one of number CSI-RS.
15. according to the method for claim 12, which is characterized in that receive the reference signal letter one of in the following manner
Breath：
The dedicated control signaling of point to point system, radio resource control RRC message, media access control control unit MAC CE disappear
The system broadcast message of breath, the PDCCH in first carrier and first carrier.
16. according to the method for claim 12, which is characterized in that the reference signal information of second carrier wave is：First
Carrier wave indicates the reference signal information of multiple second carrier waves；Or, multiple first carriers indicate the reference signal of second carrier wave
Information.
17. according to the method for claim 12, which is characterized in that the UE also receives the second carrier wave institute by first carrier
The reference signal information used, including：
The UE receives the second instruction information, the ginseng of second carrier wave that the second instruction information is received for UE instructions
Examine the second carrier wave corresponding to signal message.
18. a kind of communication means, which is characterized in that the method includes：
Network side is configured the occupied resource information of control domain of the second carrier wave by first carrier and sends, and is carried described second
Control domain information is sent in the corresponding resource of the occupied resource information of control domain of wave；According to the control domain of second carrier wave
Message scheduling data transmission, allows to dispatch from the UE that the first carrier accesses and works in second carrier wave；
Wherein, UE access network is supported in the first carrier, the second carrier wave and first carrier are Independent Carrier Waves；Or, described
The corresponding bandwidth of one carrier wave supports UE access network, and the corresponding bandwidth of the second carrier wave and the corresponding bandwidth of the first carrier belong to
Same carrier wave.
19. according to the method for claim 18, which is characterized in that the occupied resource letter of control domain of second carrier wave
Breath is that base station is configured and is sent from the first carrier；Or,
The occupied resource information of control domain of second carrier wave is a variety of to be configured in the second carrier wave by first carrier
Different types of control domain；The different types of control domain includes the control domain for being adapted to different service types.
20. according to the method for claim 18, which is characterized in that the occupied resource letter of control domain of second carrier wave
It ceases and is：First carrier indicates the occupied resource information of control domain of multiple second carrier waves；Or, multiple first carriers indicate one
The occupied resource information of control domain of second carrier wave.
21. according to the method for claim 18, which is characterized in that the second carrier wave is configured by first carrier in the network side
The occupied resource information of control domain and send, including：
When base station sends the occupied resource information of control domain of the second carrier wave by first carrier, also sent by first carrier
First instruction information；Wherein, the first instruction information indicates the resource information of the control domain occupancy of second carrier wave for UE
The second corresponding carrier wave.
22. according to the method for claim 18, which is characterized in that when the UE is scheduled for being worked in the second carrier wave
The control domain permission used is sent from first carrier or the second carrier wave.
23. according to the method for claim 18, which is characterized in that the first carrier is backward compatibility carrier wave；
Second carrier wave is at least one of following carrier wave：
Fragment carrier wave, extension carrier wave, backward compatibility carrier wave.
24. according to the method for claim 18, which is characterized in that the occupied resource letter of control domain of second carrier wave
Breath is one of the following：
Indicate the orthogonal frequency division multiplex OFDM number of symbols of control domain occupancy and/or the location information of OFDM symbol；
Indicate the Physical Resource Block PRB numbers of control domain occupancy and/or the location information of PRB.
25. according to the method for claim 18, which is characterized in that receive second carrier wave one of in the following manner
The occupied resource information of control domain：
The dedicated control signaling of point to point system, radio resource control RRC message, media access control control unit MAC CE disappear
The system broadcast message of breath, the PDCCH in first carrier and first carrier.
26. according to the method for claim 18, which is characterized in that the control domain of second carrier wave is controlled for physical down
Channel PDCCH, Physical Control Format Indicator Channel PCFICH, Physical HARQ Indicator Channel PHICH and the control of evolution physical down
At least one of channel E-PDCCH channels.
27. according to the method for claim 18, which is characterized in that the control domain of second carrier wave carries for dispatching first
The running time-frequency resource of wave and/or the second carrier wave；The running time-frequency resource of first carrier and/or the second carrier wave is dispatched by the second carrier wave in base station
When, the corresponding carrier wave of the running time-frequency resource is sent to the UE by the second carrier wave.
28. according to the method for claim 18, which is characterized in that second carrier wave has more than two control domains；
Wherein, at least one that the resource of second carrier wave is dispatched for UE for PDCCH, the PDCCH, other control domains are removed as UE tune
It spends outside the resource of second carrier wave, is also UE scheduling and the resource of the carrier wave of second carrier pairings.
29. according to the method for claim 18, which is characterized in that the method further includes：
Also reference signal information used in the control domain of the second carrier wave is configured by first carrier in the network side.
30. according to the method for claim 29, which is characterized in that the reference signal information is one of the following：
The reference signal information include the reference signal type, the period, pattern, position information；
The reference signal information includes the DMRS mapping pattern information being configured in PDCCH resource position；
Period of the reference signal information including reference signal, mapping pattern and offset in subframe.
31. the method according to claim 29 or 30, which is characterized in that
The reference signal is cell special reference CRS, the reference signal DMRS of demodulation and channel status instruction are with reference to letter
At least one of number CSI-RS.
32. according to the method for claim 29, which is characterized in that receive the reference signal letter one of in the following manner
Breath：
The dedicated control signaling of point to point system, radio resource control RRC message, media access control control unit MAC CE disappear
The system broadcast message of breath, the PDCCH in first carrier and first carrier.
33. according to the method for claim 29, which is characterized in that the reference signal information of second carrier wave is：First
Carrier wave indicates the reference signal information of multiple second carrier waves；Or, multiple first carriers indicate the reference signal of second carrier wave
Information.
34. according to the method for claim 29, which is characterized in that the network side is also configured second by first carrier
Reference signal information used in the control domain of carrier wave, including：
When base station sends the reference signal information of the second carrier wave by first carrier, the second instruction is also sent by first carrier and is believed
Breath.Wherein, the second instruction information indicates the second carrier wave corresponding to the reference signal information for UE.
35. a kind of configuration method of carrier control domain, which is characterized in that the method includes：Network side is matched by first carrier
It puts the occupied resource information of control domain of the second carrier wave and sends, user equipment (UE) access communications system from the first carrier
System obtains the occupied resource information of control domain of second carrier wave, and allows to be scheduled in second carrier wave；
Wherein, UE access network is supported in the first carrier, the second carrier wave and first carrier are Independent Carrier Waves；Or, described
The corresponding bandwidth of one carrier wave supports UE access network, the corresponding bandwidth of the second carrier wave and the corresponding bandwidth of the first carrier
Belong to same carrier wave.
36. a kind of computer storage media, which is characterized in that computer program is stored in the computer storage media,
It is characterized in that, the step of any one the method in claim 1-35 is realized when the computer program is executed by processor
Suddenly.
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