CN103095632B - The collocation method and device of carrier control domain - Google Patents
The collocation method and device of carrier control domain Download PDFInfo
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- CN103095632B CN103095632B CN201110345903.XA CN201110345903A CN103095632B CN 103095632 B CN103095632 B CN 103095632B CN 201110345903 A CN201110345903 A CN 201110345903A CN 103095632 B CN103095632 B CN 103095632B
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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
Abstract
The invention discloses a kind of collocation method of carrier control domain and device, wherein, the collocation method of the carrier control domain includes：Network side configures the resource information shared by the control domain of another part carrier wave by matching the partial carrier wave in carrier wave.In the present invention, the scheduling of own service data can be realized using the carrier wave of non-backward compatible according to the resource information shared by the control domain of the carrier wave of the non-backward compatible on the carrier wave of the backward compatibility listened to by supporting the UE of the carrier wave of non-backward compatible.The present invention improves the robustness of multicarrier system carrier wave, by carrier wave control domain configuration can carrier wave configuration can be adapted to different scenes, improve the utilization ratio of carrier resource, and improve the flexibility of multicarrier system.
Description
Technical field
The present invention relates in multicarrier system by backward compatibility carriers carry carrier wave centering other carrier waves control domain money
The technology of source information, more particularly to the collocation method and device of 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
Speed and service quality (QoS, Quality of Service) requirement more and more higher, then in 3G (Third Generation) Moblie
Before (3G, 3rd Generation) is also without extensive commercialization, the research of next generation mobile communication system has just been had begun to
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
A width of 20MHz (megahertz).With the further evolution of network, evolution systems of the evolution LTE (LTE-A) as LTE, Ke Yiti
Spectral bandwidth for being up to 100MHz, the more flexible higher-quality communication of support, while lte-a system possess 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
Existing LTE-A terminal sends and receives data in multiple component carriers simultaneously, so as to reach the purpose of lifting 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 bigger bandwidth for transmission data.
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 of a variety of original systems are configured with backward compatibility carrier wave, to help the UE of those legacy versions
Normal work 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, the problem of less efficient be present.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 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 to configure above-mentioned control domain on compatible carrier wave, this obviously can 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, causes the utilization ratio of carrier wave relatively low.
The content of the invention
In view of this, it is a primary object of the present invention to provide the collocation method and device of a kind of carrier control domain, can keep away
Exempting from the control domain in non-backward compatible carrier waves can not be obtained by UE, and can realize and accessed for UE according to the load situation of carrier wave
Control domain flexible configuration, such as can will be configured at carrier wave non-backward compatible carrier waves for the control domain that UE is accessed, 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.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of collocation method of carrier control domain, including：
Network side configures the resource shared by the control domain of another part carrier wave by matching the partial carrier wave in carrier wave
Information.
Preferably, methods described also includes：
The network side is also used by matching the partial carrier wave in carrier wave to configure the control domain of another part carrier wave
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：
Burst carrier wave, extension carrier wave, backward compatibility carrier wave, the carrier wave used with backward compatibility carrier pairings.
Preferably, the resource information shared by the control domain of another part carrier wave is：In another part carrier wave
Subframe in the positional information of the OFDM symbol number that takes and/or OFDM symbol；And/or in another part carrier wave
The PRB numbers and/or PRB positional information taken in subframe.
Preferably, methods described also includes：
The network side is also notified in another part carrier wave with the presence or absence of use by the partial carrier wave matched in carrier wave
In the information of the control domain of user equipment (UE) access.
Preferably, the reference signal information includes the reference signal type, cycle, the information of pattern.
Preferably, the control domain is at least one channel in PDCCH, PCFICH and PHICH；
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 by matching the partial carrier wave in carrier wave shared by the control domain of another part carrier wave
Resource information.
Preferably, the dispensing unit also configures the control of another part carrier wave by matching the partial carrier wave in carrier wave
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：
Burst carrier wave, extension carrier wave, backward compatibility carrier wave, the carrier wave used with backward compatibility carrier pairings.
Preferably, the resource information shared by the control domain of another part carrier wave is：In another part carrier wave
Subframe in the positional information of the OFDM symbol number that takes and/or OFDM symbol；And/or in another part carrier wave
The PRB numbers and/or PRB positional information taken in subframe.
Preferably, described device also includes：
Notification unit, for also notifying to whether there is in another part carrier wave by the partial carrier wave matched in carrier wave
Information for the control domain of UE accesses.
Preferably, the reference signal information includes the reference signal type, cycle, the information of pattern.
Preferably, the control domain is at least one channel in PDCCH, PCFICH and PHICH；
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 configures shared by the control domain of the carrier wave of the carrier wave of non-backward compatible and/or backward compatibility
Resource information.So, 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
Resource information shared by the control domain of the carrier wave of backward compatibility, own service data are realized 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
Ripple configuration can be adapted to different scenes, improve the utilization ratio of carrier resource, and improve the flexibility of multicarrier system.
Brief description of the drawings
Fig. 1 is the composition structural representation of detection reference signal configuration device of the embodiment of the present invention.
Embodiment
The present invention basic thought be：The control domain of the carrier wave matched by a carrier wave pair with it carries out flexible configuration,
To lift the utilization ratio of carrier wave.Also, the present invention combines the technical characterstic of multicarrier, give base station and carry out carrier pairings
Principle, and base station are matched somebody with somebody by a certain carrier wave 1 carrier wave of special control domain (refer to need not configure) to notify and indicate with it
To carrier wave 2 (refer to the carrier wave for needing to configure special control domain, if desired in Physical Resource Block (PRB, Physical
Resource Block)) in control domain configuring condition and carrier wave 2 in reference signal configuring condition.Preferably, carrier wave
2 can not provide access capability for UE, it is impossible to provide retention for UE, carrier wave 2 is unable to independent operation, it is necessary to and compatible carrier wave
Pairing uses.That is, would operate in the UE in carrier wave 2, all access communications system obtains the control in carrier wave 1 from carrier wave 1
After configuration of territory information processed, just by base station scheduling into carrier wave 2.
To make the purpose of the present invention, technical scheme and advantage are more clearly understood, by the following examples and referring to the drawings, right
The present invention is further described.
Base station needs first to determine to match the relation of carrier wave, and the pairing between carrier wave can be one-to-many, many-one, Huo Zheyi
To one.Such as carrier wave 1 matches with carrier wave 2, then the resource information for the control domain that carrier wave 1 comes in indication carrier wave 2 can be selected, or
Person selects the control domain information that carrier wave 2 comes 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, can not generally provide the control domain of the carrier wave of access capability can be reconfigured (such as
It can be configured as being carried by PDCCH, can also be carried by PRB).For indicating the carrier wave of other carrier control domain resource informations
The flexible configuration in domain can not be controlled, to avoid the control domain of each carrier wave in system from configuring, and UE
Being initially accessed to be guaranteed, and therefore, the control domain of at least one carrier wave is to be pre-configured with multi-carrier communications systems
Alright, it is impossible to be reconfigured.Base station can also be matched carrier wave 1 and carrier wave 2, carrier wave 3..., be referred to afterwards 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, i.e., only retain a carrier wave 1 and normal UE accesses are provided and are 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 accesses in remaining carrier wave
Domain, can play do not send these be used for UE access control domain and reach the purpose of energy-conservation, and cause the carrier wave power
Equalization, it is easy to accomplish.Base station can also match carrier wave 1, carrier wave 2, carrier wave 3 and carrier wave 4, afterwards 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 especially 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 being worked in carrier wave 4.If there was only a control domain in carrier wave 4, then carry
The resource information of control domain in the carrier wave 4 indicated in ripple 1,2,3 is identical.If it is 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 it is also included within a carrier wave and indicates multiple differences 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, such as a kind of UE for being used to support common unicast service (unicast), another kind are used to support machine type communication
The UE of (MTC, Machine Type Communication) business.Due to larger difference between above two business be present,
Therefore the control domain of specific business can be more suitable for according to different business characteristic designs, so as to lift the effect of Service control
Rate.
When determining carrier wave relation, the carrier wave in the same band of prioritizing selection is matched, because the load in same band
Carrier characteristics (such as penetration capacity, obstacle ability) relatively, are easy to keep synchronous each other, so matched ripple each other
Do not have to be to have certain benefit during synchronization mechanism in carrier wave.If RF radio in system be present zooms out (RRH, Remote
Radio Head) node, then carrier wave of the selection from same node is matched.It can so ensure that match carrier wave passes each other
Defeated path is identical.
In the case of above-mentioned carrier wave 1 and carrier wave 2 configure, it is assumed that the control domain of carrier wave 2 is configurable.So, carrying
The UE that is worked in ripple 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
Used according to needing to configure carrier wave 2 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 resource information of control domain in UE carrier waves 2 can be notified using the dedicated control signaling of point to point system, can also be used
Wireless heterogeneous networks (RRC, Radio Resource Control) message, medium education 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, now 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 burst carrier wave (burst carrier wave
(Carrier Segment), it is that a kind of carrier wave of non-backward compatible (refers to not provide backward compatibility for version before
Property), burst carrier wave can not 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 bandwidth sum of backward compatibility carrier wave of the burst carrier wave with matching is 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
Use, as a branch of backward compatibility carrier wave, 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 is can not be independent
Operation with backward compatibility carrier pairings, it is necessary to use.It is the control domain for not being used for UE accesses under default situations, in carrier wave 2,
It is that resource distribution situations of the UE in carrier wave 2 is dispatched to be operated by carrier wave 1.When the access from carrier wave 1 and work
UE, base station can be operated with scheduling portion UE in carrier wave 2, but control information be still from carrier wave 1, so with
Increasing for UE quantity is accessed in carrier wave 1, overload just occurs in the control domain in carrier wave 1, produces the feelings such as the nervous, obstruction of resource
Condition, cause that system requirements can not be met.The control domain that now base station needs to be configured to UE accesses in carrier wave 2 (is held by PDCCH
Carry), it is responsible for UE in scheduling carrier wave 2, and base station notifies those UE to be worked in carrier wave 2, carrier wave 2 by dedicated control signaling
It is configured for the control domain information for UE accesses.The UE cans so to be worked in carrier wave 2 are obtained by the control domain in carrier wave 2
Schedule information.The pressure of the control domain in carrier wave 1 is so also just alleviated, so as to improve the utilization ratio of control domain.Work as load
During the UE negligible amounts to be worked in ripple 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 obtains schedule information in carrier wave 2.This
Sample can reach burst carrier wave or extend purpose of the control domain in carrier wave according to base station demand flexible configuration.
In addition, base station can also select by the reference signal information in the notice of carrier wave 1 and indication carrier wave 2 as needed,
The reference signal that the reference signal and data field used including control domain uses.UE can be so helped well 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
Put, 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, positional information, offset information etc., with side
Help and realize 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 scope that special control domain in carrier wave 2 can dispatch is not restricted in the present invention, such as can only dispatch load
Running time-frequency resource in ripple 2, 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
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 resource of determination 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 takes
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, that several OFDM symbol is such as taken, and for example, if control domain is according to the starting OFDM in subframe
Symbol Continuous Mappings, then it can only indicate number.And for example, an OFDM symbol is only taken up if only regulation control domain
(this is for some special business, such as low end UE business), then only can be with indicating positions, as which is individual
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 ripple 2 takes and/or position, such as the PRB of control domain occupancy numbering are notified to UE.Numbering
Number and location can be embodied simultaneously.
The control information in the form of control information in carrier wave 2, such as indication carrier wave 2 is also can indicate that in carrier wave 1 is
PDCCH forms be also non-PDCCH forms other new forms, such as E-PDCCH.Directly help to control in UE or carrier wave 2
The form in domain, be advantageous to UE and receive control domain.If have multiple control information forms in carrier wave 2, then base station in carrier wave 1 by
Individual instruction control information 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).Can also be during standard words
Newly-designed control channel or information.
Preferably, if indicating only a form of control domain and information format in system for carrier wave 2, then base station
It can notify by carrier wave 1 and whether there is the control domain in indication carrier wave 2, can also so lift the control of carrier wave 2
Configuration of territory flexibility ratio, so as to adjust working method in time when lifting UE from the incoming carrier 2 of carrier wave 1.
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) one or more.Such as it can refer in carrier wave 1
Show and a certain reference signal is configured in carrier wave 2, or a variety of reference signals configure simultaneously.And it should notify to carry in carrier wave 1
Mapping pattern in cycle of the reference signal of configuration in ripple 2, subframe, skew.
Below by way of specific example, the essence for technical scheme that the present invention is furture elucidated.
Embodiment one
Assuming that there are 3 carrier waves the base station of a support multi-carrier polymerizing, a 10MHz (being designated as CC1), 2 5MHz are (respectively
It is designated as CC2, CC3), CC1, CC2 and CC3 frequency are continuous successively.Assuming that CC1, which is a compatible carrier wave, (supports LTE R8/R9/
R10 UE work and access), 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, the carrier wave 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 the control domain that indicates other carrier waves, such as the UE that substantial amounts of M2M business in communication system be present
When, base station can select the less carrier wave of some bandwidth to carry this kind of business, because this kind of UE business characteristic 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 less carrier wave of carrier bandwidths to be used as
The described carrier wave being used to refer to, be so advantageous to the follow-up energy-conservation in base station.Due to only having a carrier wave to have in the present embodiment
Access capability, so selection CC1 is as indication carrier wave.
If there are substantial amounts 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 CC1 system broadcast message notifying and
Indicate the resource related information and/or reference signal configuration information of the control domain 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.So base station can scheduling is operated from CC1 in UE to the CC2 of cut-in operation,
And due to being configured with more rational control domain in CC2, the efficiency that the control domain in CC2 utilizes can be lifted.Here base station
CC1 and CC2 can 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 in advance can be matched CC1 and CC2, a pairing thus can be directly newly increased in CC1 and is carried
The Resource Information Element of ripple control domain, and one pairing carrier reference signal Resource Information Element of increase.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 which CC control domain resource information and reference signal configuration information, otherwise need not indicates specific carrier wave.
If base station needs, by the UE of part legacy version in CC1, (LTE R8/R9/R10 UE, refers to and does not support the present invention
The UE of technical scheme) it is dispatched in CC3 and is operated, then now base station can use the above method, and CC2 is indicated in CC1
Control domain resource related information and reference signal configuration information, now base station can be that CC2 configures LTE R8/R9/R10 UE
Control domain form, such as PDCCH structure are supported, the OFDM symbol that CC2 PDCCH takes can be further indicated in CC1
And PHICH, these can also directly be configured certainly sends in CC2, such as exists according to the LTE R8/R9/R10 forms supported
Configured in CC2, in this way, after UE enters CC2 work, control independently can be parsed by the reception of relevant information in CC2
Domain processed.
Worked if base station needs redaction UE in CC1 being dispatched in CC2, these UE type of service is unicast industry
Business, be 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, now equivalent to the resource related information for indicating two kinds of different control domains for CC2 by CC1.
Embodiment 2
Assuming that there are 3 carrier waves the base station of a support multi-carrier polymerizing, a 10MHz (being designated as CC1), 2 5MHz are (respectively
It is designated as CC2, CC3), CC1, CC2 and CC3 frequency are continuous successively.Assuming that CC1 and CC2, which are a compatible carrier waves, (supports LTE
R8/R9/R10 UE work and access), CC3 is not a compatible carrier wave, and does not provide the carrier wave of access and resident functions, is
Burst carrier wave or extension carrier wave.Assuming that CC1 and CC3 pairings use.
Base station determines the need for configuring control domain in CC3, for example, base station carries out UE data transfer mistake in CC3
Cheng Zhong, with the UE quantity increase for needing to transmit, anxiety (CC3 occurs in the control domain resource in the CC1 used with CC3 pairings
Middle UE data dispatch is scheduled by the control domain in CC1), now base station can be located by the way of the present invention
Reason, as base station is notified by CC1 and indicates UE, control domain is configured with CC3, 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.Now base station has two kinds
Mode notifies the resource information of CC3 control domains in CC1, and a kind of is to notify to match somebody with somebody in above-mentioned CC3 in CC1 system broadcast information
Put PDCCH, PCFICH, PHICH, and be 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 to be notified that base station is to the needs in connection status using point-to-point mode
The UE to work in CC3, notify to be configured with PDCCH, PCFICH, PHICH etc. in CC3 by its DCCH.Base station
After the resource information of control domain for notifying and indicating CC3 by CC1, base station will configure the control domain in CC3, then directly
The UE to be worked in CC3 is dispatched by CC3 control domain.When CC1 control domain scheduling UE works in CC3, if necessary to adjust
The UE quantity of degree is very more, then situations such as resource anxiety just occurs in the control domain in CC1, and scheduling is blocked, the skill of this example
Art scheme can solve the above problems.If over the decline of the quantity and the traffic of UE in CC3, base station can be led to by CC1
Know and indicate UE, control domain is configured without in CC3, advice method is identical with foregoing advice method, and hereafter base station is in CC3
The UE of work is scheduled by CC1 control domain, so as to obtain more resource transmission data in CC3.
Pass through above embodiment, it can be seen that the control domain of dynamic configuration carrier wave, larger benefit can be obtained,
Especially for burst carrier wave or extension carrier wave, the resource of control domain can be made full use of, it is converted into control money in time
Source or data resource so that the flexibility of system is lifted.
Embodiment three
Assuming that there are 3 carrier waves the base station of a support multi-carrier polymerizing, a 10MHz (being designated as CC1), 2 5MHz are (respectively
It is designated as CC2, CC3), CC1, CC2 and CC3 frequency are continuous successively.Assuming that CC1 and CC2, which are backward compatibility carrier waves, (supports LTE
R8/R9/R10 UE work and access), CC3 is not backward compatibility carrier wave, and does not provide the carrier wave of access and resident functions, is
Burst 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, M2M business simultaneously
Deng, each have their own feature of these business, so corresponding transmission means, 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 technology 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, base station can be implemented by the way of following.
CC3 can only rely on pairing as the control domain that burst carrier wave or extension carrier wave are without itself in CC3
Carrier wave CC1 is scheduled.Base station preferentially M2M UE can be dispatched in CC3 and be operated (be preferentially here because
M2M business is without the concern for compatibility).Or the UE of unicast service is dispatched in CC3 and is operated.
When UE is dispatched to by base station to be operated in CC3, base station can be notified and be indicated by CC1 to need what is dispatched
The information of the control domain 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 M2M UE can be accurately received control domain in CC3.
Further, base station can configure the control domain of unicast service in CC3, and now base station is notified and referred to by CC1
Show UE, two control domains be present in CC3.Unicast service UE carries out the reception of data, M2M UE according to the control domain of unicast afterwards
The reception of data is carried out according to M2M control domain.The control domain of two class business, which can so be ensured, all has higher efficiency.
Example IV
Existing two kinds of reference signals are respectively used to UE demodulation control domains in system at present, are CRS and DM-RS respectively, wherein
Also there are two kinds to be used for the reference signals that UE carries out channel quality measurement, be CRS respectively, and CSI-RS.
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 CRS reference signals are configured with CC3, and the related letter such as the transmission cycle of reference signal, pattern
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 CRS, CRS configuration cycle, mapping pattern information etc. in UECC3 by CC1,
The UE cans being so operated in CC3 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, be configured without CRS, be configured with DM-RS, this
The UE cans that sample is operated in CC3 carry out channel measurement by CSI-RS, and the demodulation of data is carried out by DM-RS.Now by
In the existing configuration reasons of DM-RS, cause UE can not be controlled the demodulation of domain (control domain for referring to PDCCH forms) using DM-RS,
So base station also needs to notify by CC1 and indicates the control domain in UECC3 is entered using which type of reference signal in the present invention
Row demodulation, such as when control domain is configured to PDCCH forms in CC3, base station needs to indicate that DM-RS demodulation uses CRS, and base station
The configuration in CC3 PDCCH resource is needed to send CRS.Base station can also notify to be configured with PDCCH resource position in UECC3
DM-RS, and DM-RS mapping pattern information, 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 recording medium, such as read-only storage, disk or CD
Deng.Alternatively, all or part of step of above-described embodiment can also be realized using one or more integrated circuits.Accordingly
Ground, each module/unit in above-described embodiment can be realized in the form of hardware, can also use the shape of software function module
Formula is realized.The present invention is not restricted to the combination of the hardware and software of any particular form.
Fig. 1 is the composition structural representation 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 by matching the partial carrier wave in carrier wave shared by the control domain of another part carrier wave
Resource information.
Above-mentioned dispensing unit 10 also configures the control domain of another part carrier wave institute by matching the partial carrier wave in carrier wave
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：
Burst carrier wave, extension carrier wave, backward compatibility carrier wave, the carrier wave used with backward compatibility carrier pairings.
Resource information shared by the 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 positional information of OFDM symbol；And/or accounted in the subframe of another part carrier wave
The positional 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 also 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 accessed for UE.
The reference signal information includes the reference signal type, cycle, the information of pattern.
The control domain is at least one channel in PDCCH, PCFICH and PHICH；
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, at least one is PDCCH, and the PDCCH is
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 carrier control domain shown in Fig. 1 of the present invention
Manage unit function can by corresponding hardware circuit, or processor and the corresponding mode for performing software and realize, 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 collocation 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 (15)
1. a kind of collocation method of carrier control domain, it is characterised in that methods described includes：
Network side configures the resource information shared by the control domain of another part carrier wave by matching the partial carrier wave in carrier wave,
The user equipment (UE) for allowing to be operated in another part carrier wave access communications system from the partial carrier wave obtains described
The control domain configuration information of another part carrier wave, and allow to be scheduled in another part carrier wave；
Wherein, the partial carrier wave in the pairing carrier wave supports UE access networks, and another part carrier wave and the partial carrier wave are
Two Independent Carrier Waves；Or, bandwidth corresponding to the partial carrier wave in the pairing carrier wave supports UE access networks, described another part
Carrier wave is a part for the bandwidth of the partial carrier wave.
2. according to the method for claim 1, it is characterised in that methods described also includes：
The network side also configures ginseng used in the control domain of another part carrier wave by matching the partial carrier wave in carrier wave
Examine signal message.
3. according to the method for claim 1, it is characterised in that the partial carrier wave is backward compatibility carrier wave；
Another part carrier wave is at least one of following carrier wave：
Burst carrier wave, extension carrier wave, backward compatibility carrier wave.
4. according to the method for claim 1, it is characterised in that the resource shared by the control domain of another part carrier wave
Information is：The orthogonal frequency division multiplex OFDM number of symbols and/or OFDM symbol taken in the subframe of another part carrier wave
Positional information；And/or the Physical Resource Block PRB numbers that are taken in the subframe of another part carrier wave and/or PRB
Positional information；Wherein, dedicated control signaling of the resource information shared by the control domain by point to point system, Radio Resource
Control (RRC, Radio Resource Control) message, medium education control unit (MAC CE, Media Access
Control-Control Element), PDCCH in the partial carrier wave indicate the control of another part carrier wave described in UE
System information block (SIB, a System in the system broadcast information of the resource information in domain or the partial carrier wave
Information Block) in come in another part carrier wave described in all UE in notifying cell in the resource information of control domain
At least one mode notifies UE.
5. according to the method for claim 1, it is characterised in that methods described also includes：
The network side also is notified to whether there is in another part carrier wave and used by the partial carrier wave matched in carrier wave
The information of the control domain of family equipment UE.
6. according to the method for claim 2, it is characterised in that the reference signal information includes the reference signal class
Type, cycle, the information of pattern.
7. the method according to claim 2 or 6, it is characterised in that the control domain is Physical Downlink Control Channel
At least one channel in PDCCH, Physical Control Format Indicator Channel PCFICH and Physical HARQ Indicator Channel PHICH；
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.
8. according to the method for claim 1, it is characterised in that another part carrier wave has more than two controls
Domain；Wherein, at least one is PDCCH, and the PDCCH dispatches the resource of another part carrier wave, other control domains for UE
It is also UE scheduling and the money of the carrier wave of another part carrier pairings in addition to the resource of another part carrier wave is dispatched for UE
Source.
9. a kind of configuration device of carrier control domain, it is characterised in that described device includes：
Dispensing unit, for configuring the money shared by the control domain of another part carrier wave by matching the partial carrier wave in carrier wave
Source information, it is allowed to which the user equipment (UE) being operated in another part carrier wave access communications system from the partial carrier wave obtains
The control domain configuration information of another part carrier wave is obtained, and allows to be scheduled in another part carrier wave；
Wherein, the partial carrier wave in the pairing carrier wave supports UE access networks, and another part carrier wave and the partial carrier wave are
Two Independent Carrier Waves；Or, bandwidth corresponding to the partial carrier wave in the pairing carrier wave supports UE access networks, described another part
Carrier wave is a part for the bandwidth of the partial carrier wave.
10. device according to claim 9, it is characterised in that the dispensing unit is also by matching the part in carrier wave
Carrier wave configures reference signal information used in the control domain of another part carrier wave.
11. device according to claim 9, it is characterised in that the partial carrier wave is backward compatibility carrier wave；
Another part carrier wave is at least one of following carrier wave：
Burst carrier wave, extension carrier wave, backward compatibility carrier wave.
12. device according to claim 9, it is characterised in that the money shared by the control domain of another part carrier wave
Source information is：The OFDM symbol number and/or the positional information of OFDM symbol taken in the subframe of another part carrier wave；
And/or the PRB numbers and/or PRB positional information taken in the subframe of another part carrier wave；Wherein, the control
Dedicated control signaling by point to point system of resource information shared by domain, wireless heterogeneous networks (RRC, Radio
Resource Control) message, medium education control unit (MAC CE, Media Access Control-
Control Element), PDCCH in the partial carrier wave indicate the resource of the control domain of another part carrier wave described in UE
System information block (SIB, System an Information in the system broadcast information of information or the partial carrier wave
Block at least one of resource information of control domain mode in another part carrier wave described in all UE in notifying cell is carried out in)
Notify UE.
13. device according to claim 9, it is characterised in that described device also includes：
Notification unit, it is used for for also notifying to whether there is in another part carrier wave by the partial carrier wave matched in carrier wave
The information of UE control domain.
14. device according to claim 10, it is characterised in that the reference signal information includes the reference signal class
Type, cycle, the information of pattern.
15. the device according to claim 10 or 14, it is characterised in that the control domain be PDCCH, PCFICH and
At least one channel in PHICH；
The reference signal is at least one of CRS, DMRS and CSI-RS.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810019278.1A CN108199999B (en) | 2011-11-04 | 2011-11-04 | Carrier control domain configuration method and device |
| CN201110345903.XA CN103095632B (en) | 2011-11-04 | 2011-11-04 | The collocation method and device of carrier control domain |
| PCT/CN2012/083621 WO2013064039A1 (en) | 2011-11-04 | 2012-10-26 | Configuration method and apparatus for carrier control domain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110345903.XA CN103095632B (en) | 2011-11-04 | 2011-11-04 | The collocation method and device of carrier control domain |
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| CN201810019278.1A Division CN108199999B (en) | 2011-11-04 | 2011-11-04 | Carrier control domain configuration method and device |
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| CN201810019278.1A Active CN108199999B (en) | 2011-11-04 | 2011-11-04 | Carrier control domain configuration method and device |
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| WO2020237623A1 (en) * | 2019-05-31 | 2020-12-03 | Qualcomm Incorporated | Enhanced mac-ce and rrc ie for multi-carrier configurations |
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| JP4797888B2 (en) * | 2006-08-31 | 2011-10-19 | 株式会社日立製作所 | Wireless communication system, control node, and base station for communication using a plurality of wireless resources |
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| EP2785127B1 (en) * | 2009-08-14 | 2017-11-01 | BlackBerry Limited | Frame structure and control signaling downlink coordinated multi-point (Comp) transmission |
| CN102006655A (en) * | 2009-08-31 | 2011-04-06 | 中兴通讯股份有限公司 | RRC (Radio Resource Control) connection reestablishment method and device in carrier aggregation |
| EP3474621B1 (en) * | 2009-09-25 | 2022-05-04 | BlackBerry Limited | System and method for multi-carrier network operation |
| CN102123000B (en) * | 2010-12-17 | 2012-10-17 | 中国科学院声学研究所 | Method for smoothly upgrading digital terrestrial television broadcasting system to be of two-way |
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| CN102119567A (en) * | 2008-08-11 | 2011-07-06 | 高通股份有限公司 | Anchor carrier in a multiple carrier wireless communication system |
| CN101801090A (en) * | 2009-02-05 | 2010-08-11 | 大唐移动通信设备有限公司 | Method for configuring physical downlink control channel, base station and user equipment |
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| WO2013064039A1 (en) | 2013-05-10 |
| CN108199999A (en) | 2018-06-22 |
| CN108199999B (en) | 2021-03-26 |
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