CN103095632A - Collocation method and device of carrier control domain - Google Patents
Collocation method and device of carrier control domain Download PDFInfo
- Publication number
- CN103095632A CN103095632A CN201110345903XA CN201110345903A CN103095632A CN 103095632 A CN103095632 A CN 103095632A CN 201110345903X A CN201110345903X A CN 201110345903XA CN 201110345903 A CN201110345903 A CN 201110345903A CN 103095632 A CN103095632 A CN 103095632A
- Authority
- CN
- China
- Prior art keywords
- carrier wave
- control domain
- another part
- carrier
- information
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
-
- 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
-
- 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 collocation method and a device of a carrier control domain. The collocation method of the carrier control domain comprises the step that a network side allocates resource information occupied by a control domain of the other part of a carrier through pairing a part of the carrier. According to the collocation method and device, user experience (UE) of the carrier of non-backward compatibility is supported, namely, according to the monitored resource information occupied by the control domain of the carrier of the non-backward compatibility on the carrier of backward compatibility, and the carrier of the non-backward carrier is utilized to achieve scheduling of self service data. The collocation method and the device improve robustness of the carrier of a multi-carrier system, enable carrier collocation to be suitable for different scenes by means of collocation of the control domain inside the carrier, a utilization rate of the carrier resources is improved, and flexibility of the multi-carrier system is promoted.
Description
Technical field
The present invention relates in multicarrier system the technology by the resource information of the control domain of other carrier waves of backward compatibility carriers carry carrier wave centering, relate in particular to a kind of collocation method and device of carrier control domain.
Background technology
along with the development of Mobile Communication Industry and to the continuous growth of mobile data services demand, speed and the service quality (QoS of people to mobile communication, Quality of Service) requirement is more and more higher, so at 3G (Third Generation) Moblie (3G, 3rd Generation) also there is no extensive commercialization before, just begun the research-and-development activity of next generation mobile communication system, wherein relatively be typically third generation partner program (3GPP, 3rd Generation Partnership Project) Long Term Evolution (LTE that starts, Long Term Evolution) project, the available maximum spectrum bandwidth of LTE system is 20MHz (megahertz).Along with the further evolution of network, evolution LTE (LTE-A) can provide the spectral bandwidth up to 100MHz as the evolution system of LTE, supports more flexible higher-quality communication, and the while, the LTE-A system possessed good backwards compatibility.In the LTE-A system, a plurality of component carriers (CC, Component Carrier) are arranged, a LTE terminal can only be operated on the CC of some backward compatibility, and the stronger LTE-A terminal of ability can be carried out transfer of data simultaneously on a plurality of CC.The terminal that namely realizes LTE-A transmits and receive data in a plurality of component carriers simultaneously, thereby reaches the purpose that promotes bandwidth.This technology is called as the multi-carrier polymerizing technology.
The LTE-A system supports the multi-carrier polymerizing technology, by multi-carrier polymerizing in the hope of reaching larger bandwidth for transmission data.Usually, maximum 5 carrier waves of base station subordinate, these carrier waves are called as component carrier, are all the carrier waves with backwards compatibility.
Dispose channel and the reference signal of multiple original system in the backward compatibility carrier wave, work therein with the UE that helps those legacy versions.But the design of these channels and reference signal all is based on original system design, from present should being used for, has the lower problem of efficient.For example when the UE of legacy version in system negligible amounts, system there is no need each carrier wave is configured to the form of compatible carrier wave.Along with carrying out of multi-carrier polymerizing technology, if configure original channel and reference signal in each carrier wave, make the carrier wave utilization ratio become lower, particularly the efficient of control domain.Because the expense of control domain in LTE is larger, occupied the resource of each subframe 1/12～4/12.Using this compatible carrier wave even without UE, is also to configure above-mentioned control domain on compatible carrier wave, and this obviously can waste the resource of carrier wave.For multicarrier system, each carrier wave is by the control domain above-mentioned resource that accounted for, and overall overhead is larger, causes the utilization ratio of carrier wave lower.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of collocation method and device of carrier control domain, can avoid the control domain on non-backward compatible carrier waves not obtained by UE, and can be according to the load situation of carrier wave, realize the flexible configuration for the control domain of UE access, as the control domain that is used for the UE access being disposed at the carrier wave non-backward compatible carrier waves, when the UE quantity of backward compatibility carrier wave access is more, can notify relevant UE to be accessed by non-backward compatible carrier waves.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of collocation method of carrier control domain comprises:
Network side configures the shared resource information of control domain of another part carrier wave by the partial carrier wave in the pairing carrier wave.
Preferably, described method also comprises:
Described network side also configures by the partial carrier wave of pairing in carrier wave the reference signal information that the control domain of another part carrier wave uses.
Preferably, described partial carrier wave is the backward compatibility carrier wave;
Described another part carrier wave is at least a of following carrier wave:
Burst carrier wave, expansion carrier wave, backward compatibility carrier wave, the carrier wave that uses with the pairing of backward compatibility carrier wave.
Preferably, the shared resource information of the control domain of described another part carrier wave is: the OFDM number of symbols that takies in the subframe of described another part carrier wave and/or the positional information of OFDM symbol; And/or, the PRB number that takies in the subframe of described another part carrier wave and/or the positional information of PRB.
Preferably, described method also comprises:
Described network side also notifies by the partial carrier wave in the pairing carrier wave information that whether exists in described another part carrier wave for the control domain of user equipment (UE) access.
Preferably, described reference signal information comprises the information of described reference signal type, cycle, pattern.
Preferably, described control domain is at least one channel in PDCCH, PCFICH and PHICH;
Described reference signal is at least a in the reference signal DMRS of cell special reference CRS, demodulation and channel status indication reference signal CSI-RS.
Preferably, described another part carrier wave has plural control domain; Wherein, at least one is PDCCH, and described PDCCH is the resource of the described another part carrier wave of UE scheduling, and other control domain also is the resource of UE scheduling with the carrier wave of described another part carrier wave pairing except the resource for the described another part carrier wave of UE scheduling.
A kind of inking device of carrier control domain comprises:
Dispensing unit is used for configuring by the partial carrier wave of pairing carrier wave the shared resource information of control domain of another part carrier wave.
Preferably, described dispensing unit also configures by the partial carrier wave of pairing in carrier wave the reference signal information that the control domain of another part carrier wave uses.
Preferably, described partial carrier wave is the backward compatibility carrier wave;
Described another part carrier wave is at least a of following carrier wave:
Burst carrier wave, expansion carrier wave, backward compatibility carrier wave, the carrier wave that uses with the pairing of backward compatibility carrier wave.
Preferably, the shared resource information of the control domain of described another part carrier wave is: the OFDM number of symbols that takies in the subframe of described another part carrier wave and/or the positional information of OFDM symbol; And/or, the PRB number that takies in the subframe of described another part carrier wave and/or the positional information of PRB.
Preferably, described device also comprises:
Notification unit is used for also notifying by the partial carrier wave of pairing carrier wave the information that whether exists in described another part carrier wave for the control domain of UE access.
Preferably, described reference signal information comprises the information of described reference signal type, cycle, pattern.
Preferably, described control domain is at least one channel in PDCCH, PCFICH and PHICH;
Described reference signal is at least a in CRS, DMRS and CSI-RS.
In the present invention, by the carrier wave component carrier of the carrier wave of non-backward compatible and backward compatibility pair, the carrier wave of network side by the backward compatibility in the pairing carrier wave configures the shared resource information of control domain of the carrier wave of the carrier wave of non-backward compatible and/or backward compatibility.Like this, support that the UE of the carrier wave of non-backward compatible can be according to the shared resource information of control domain of the carrier wave of the non-backward compatible on the carrier wave of the backward compatibility that listens to, utilize the carrier wave of non-backward compatible to realize the scheduling of own service data.The present invention has promoted the robustness of multicarrier system carrier wave, can so that the carrier wave configuration can be fit to different scenes, improve the utilization ratio of carrier resource, and promote the flexibility of multicarrier system by the configuration for control domain in carrier wave.
Description of drawings
Fig. 1 is the composition structural representation of embodiment of the present invention detection reference signal inking device.
Embodiment
Basic thought of the present invention is: the control domain by a carrier wave pair and the carrier wave of its pairing carries out flexible configuration, to promote the utilization ratio of carrier wave.And, the present invention is in conjunction with the technical characterstic of multicarrier, provided the principle that the carrier wave pairing is carried out in the base station, and the base station is notified by a certain carrier wave 1 (general reference does not need to configure the carrier wave of special control domain) and indicates with the carrier wave 2 of its pairing and (make a general reference the carrier wave that needs configure special control domain, as needs at Physical Resource Block (PRB, Physical Resource Block)) in the configuring condition of control domain and carrier wave 2 in the configuring condition of reference signal.Preferably, carrier wave 2 can not can not provide resident ability for UE for UE provides access capability, and carrier wave 2 can not independent operation, needs and compatible carrier wave pairing use.That is to say, with the UE that is operated in carrier wave 2, after all access communication system obtains control domain configuration information in carrier wave 1 from carrier wave 1, just by base station scheduling in carrier wave 2.
For making purpose of the present invention, technical scheme and advantage are clearer, and by the following examples and with reference to accompanying drawing, the present invention is described in more detail.
The base station needs first to determine the relation of pairing carrier wave, and the pairing between carrier wave can be one-to-many, many-one, perhaps one to one.For example carrier wave 1 matches with carrier wave 2, can select so carrier wave 1 to come the resource information of the control domain in indication carrier wave 2, perhaps select carrier wave 2 to come control domain information in indication carrier wave 1, here be mainly that the control domain that depends on that carrier wave in carrier wave 1 or carrier wave 2 can be reconfigured, the control domain that is generally the carrier wave that access capability can not be provided can be reconfigured (as being configured to the carrying by PDCCH, also can be carried by PRB).The carrier wave that is used to indicate other carrier control domain resource informations can not carry out the flexible configuration of control domain, can configure with the control domain of avoiding each carrier wave in system, and the initial access of UE just can not be guaranteed, therefore, the control domain that has a carrier wave in multi-carrier communications systems at least is pre-configured, can not be reconfigured.the base station also can be with carrier wave 1 and carrier wave 2, carrier wave 3... matches, afterwards by carrier wave 1 indication carrier wave 2, the resource information of the control domain in a plurality of carrier waves such as carrier wave 3, the matching method of Here it is one-to-many, this mode is fit to the lighter situation of load of base station very much, namely only keep a carrier wave 1 normal UE access and resident is provided, the base station can be according to loading demand, other carrier waves are configured control domain neatly, if do not configure the control domain for the UE access in all the other carrier waves, can play and do not send these for the control domain of UE access and reach energy-conservation purpose, and the power averaging that makes this carrier wave, be easy to realize.The base station also can be with carrier wave 1, carrier wave 2, carrier wave 3 and carrier wave 4 pairings, pass through afterwards the control domain information of difference indication carrier wave 4 in carrier wave 1, carrier wave 2, carrier wave 3, many-to-one situation that Here it is, the UE that is fit in carrier wave 1,2,3 very much directly directly is dispatched to the situation of working carrier wave 4 from the carrier wave of working.If only have a control domain in carrier wave 4, the resource information of the control domain in the carrier wave 4 of carrier wave 1,2,3 indicatings is identical so.If in carrier wave 1,2,3 be the resource information of the control domain in indication carrier wave 4 not simultaneously, the UE that can be respectively in carrier wave 4 in carrier wave 1,2,3 so provides corresponding control domain, namely has a plurality of control domains to exist in carrier wave 4.Here be also included within the configuration information of a plurality of different control domains in another carrier wave of carrier wave indicating.If two control domains are for example arranged in carrier wave 2, so can be by the resource information of each control domain in the pairing carrier wave indication carrier wave 2 of carrier wave 2.
Here configure two different control domains in a carrier wave, can be used for two kinds of UE that type of service differs greatly, a kind of UE be used to supporting common unicast service (unicast) for example, the another kind of UE that is used for supporting machine type communication (MTC, Machine Type Communication) business.Owing to there being larger difference between above-mentioned two kinds of business, therefore can more being fit to the control domain of concrete business according to different business characteristic designs, thereby promoting the efficient of Service control.
When determining that carrier wave concerns, the preferential interior carrier wave of same band of selecting matches, because carrier characteristics (as penetration capacity, obstacle ability) is more approaching each other for the carrier wave in same band, being easy to keep each other synchronous, is that certain benefit is arranged when there is no synchronization mechanism like this in the pairing carrier wave.If exist radio-frequency (RF) radio to zoom out (RRH, Remote Radio Head) node in system, select so to match from the carrier wave of same node.Transmission path is identical each other can to guarantee like this to match carrier wave.
For the situation of above-mentioned carrier wave 1 with carrier wave 2 configurations, the control domain of supposing carrier wave 2 is configurable.Like this, the UE that works in carrier wave 2 need to be from carrier wave 1 access communication system, namely UE is from carrier wave 1 in connecting system, then for this UE configuration carrier wave 2 uses, UE need to be notified, the resource information of control domain in carrier wave 2 in the base station simultaneously as required in the base station.In the present invention, can adopt the dedicated control signaling of point to point system to notify the resource information of control domain in UE carrier wave 2, also can use Radio Resource to control (RRC, Radio Resource Control) PDCCH in message, media access control control unit (MAC CE, Media Access Control-Control Element) or carrier wave 1 indicates the resource information etc. of the control domain of UE carrier wave 2.The base station also can adopt the mode of Cell Broadcast CB to notify UE, comes the resource information of control domain in all the UE carrier waves 2 in notifying cell this moment in can a certain SIB in the system broadcast information of carrier wave 1.
According to the present invention, for example, carrier wave 1 can be the backward compatibility carrier wave, carrier wave 2 is burst carrier wave (burst carrier waves (Carrier Segment), it is a kind of carrier wave (refer to for version before backwards compatibility is not provided) of non-backward compatible, the burst carrier wave can not independently use, and can only use as the part of the bandwidth of a certain backward compatibility carrier wave, with the transmittability of the data field that increases the backward compatibility carrier wave.The bandwidth sum of the backward compatibility carrier wave of burst carrier wave and pairing is no more than 110RB) or the expansion carrier wave (be the non-backward compatible carrier waves of a kind of dependent operation, must use with a certain backward compatibility carrier wave pairing, a branch as the backward compatibility carrier wave, mode by carrier aggregation is runed, the expansion carrier wave is necessary for six kinds of bandwidth (1.4MHz that existing LTE system supports, 3MHz, 5MHz, 10MHz, one of 15MHz and 20MHz), or carrier wave 2 is can not independent operation, needs and backward compatibility carrier wave pairing use.Under default situations, being the control domain that is not used for the UE access in carrier wave 2, is to dispatch the resource distribution situation of UE in carrier wave 2 by carrier wave 1 to carry out work.UE when access from carrier wave 1 and work, the base station can be dispatched part UE and carry out work in carrier wave 2, but control information is still from carrier wave 1, like this along with accessing increasing of UE quantity in carrier wave 1, it is overweight that control domain in carrier wave 1 will load occur, produce the situations such as resource anxiety, obstruction, cause to satisfy system requirements.This moment, the base station need to configure the control domain (by the PDCCH carrying) that is used for the UE access in carrier wave 2, be responsible for UE in scheduling carrier wave 2, and those UE that works are notified by dedicated control signaling in the base station in carrier wave 2, and carrier wave 2 has been configured to be used for the control domain information of UE access.The UE that works in carrier wave 2 so just can obtain schedule information by the control domain in carrier wave 2.So also just alleviate the pressure of the control domain in carrier wave 1, thereby promoted the utilization ratio of control domain.When the UE negligible amounts of working in carrier wave 2, the base station can be by the UE in carrier wave 1 notice carrier wave 2, do not configure control domain in carrier wave 2, be operated in control domain (by the PRB carrying) resource information that in carrier wave 2, UE passes through in carrier wave 1 and obtain the schedule information in carrier wave 2.Can reach like this burst carrier wave or the control domain of expansion in carrier wave according to the purpose of base station demand flexible configuration.
In addition, the base station can also be selected as required by the reference signal information in carrier wave 1 notice and indication carrier wave 2, comprises the reference signal of control domain use and the reference signal that data field uses.Can help well like this UE to utilize demodulation reference signal control domain data.For example, configured control domain in carrier wave 1 indicating carrier wave 2, and provided the resource location of control domain, the information such as signaling format, the base station reinforms the information of the reference signal of the employing of control domain described in UE carrier wave 2 by carrier wave 1 simultaneously, the reference signal of for example using such as the first-class at least in cell special reference CRS, DM-RS and CSI-RS, wherein also need to provide the configuration cycle information, drawing information, positional information, offset information of the reference signal of reference signal etc., know accurately that to help to realize UE the reference signal in carrier wave 2 sends situation.Concrete advice method can be identical with top control domain advice method.
The scope that special control domain in carrier wave 2 can be dispatched is not restricted in the present invention, the running time-frequency resource in scheduling carrier wave 2 only for example, perhaps running time-frequency resource in scheduling carrier wave 1 and carrier wave 2 simultaneously, the perhaps resource in scheduling carrier wave 1 or other carrier waves (non-carrier wave 1 and carrier wave 2 are as carrier wave 3).Concrete scheduling which or which carrier wave running time-frequency resource, base station also can also can be cured as a kind of definite resource by carrier wave 1 notice UE, for example preferably are cured as the running time-frequency resource in scheduling carrier wave 2 only.
In carrier wave 1 resource information of the control domain of notice in indication carrier wave 2 can for, position and/or the number of the OFDM symbol that the indication control domain takies, when for example control domain shines upon carrying according to the OFDM symbol, just can indicate position and the number of the OFDM symbol at control domain place, as take that several OFDM symbols, and for example, if control domain according to the initial OFDM symbol Continuous Mappings in subframe, only can indicate number to get final product.And for example, only take an OFDM symbol (this is to be some special business, for example low end UE business) iff the regulation control domain, so only can get final product by indicating positions, as which OFDM symbol.
If the control domain in carrier wave 2 shines upon according to PRB, so the base station need to notify in carrier wave 1 and indication carrier wave 2 in number and/or the position of the PRB that takies of control domain, for example the numbering of the PRB that takies of control domain is notified to UE.Numbering can embody number and position simultaneously.
Can also indicate the form of control information in carrier wave 2 in carrier wave 1, for example the control information in indication carrier wave 2 be the PDCCH form be also other new forms of non-PDCCH form, as E-PDCCH.Directly help the form of control domain in UE or carrier wave 2, be conducive to UE and receive control domain.If a plurality of control information forms are arranged in carrier wave 2, the base station is indicated the control information form one by one in carrier wave 1 so.
preferably, control domain comprises 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) indicating channel (PHICH, Physical HARQ Indicator Channel), evolution Physical Downlink Control Channel (E-PDCCH, Enhanced Physical Control Format Indicator Channel) one or more in.Also can be in standard words process newly-designed control channel or information.
Preferably, if indicated for carrier wave 2 control domain and the information format that a kind of form is only arranged in system, so the base station can by carrier wave 1 notify with indication carrier wave 2 in whether have described control domain, so also can promote the control domain flexible configuration degree of carrier wave 2, in time adjust working method from carrier wave 1 incoming carrier 2 time thereby promote UE.
Preferably, above-mentioned reference signal comprises cell special reference (CRS, Cell-specific Reference Signals), the reference signal (DMRS of demodulation, Demodulation Reference Signal), channel status is indicated one or more of (CSI-RS, Channel Status Information Reference Signal).For example can configure a certain reference signal in indication carrier wave 2 in carrier wave 1, perhaps multiple reference signal configures simultaneously.And should notify mapping pattern in cycle, subframe of the reference signal of the configuration in carrier wave 2 in carrier wave 1, skew.
Below by concrete example, further illustrate the essence of technical solution of the present invention.
Embodiment one
Suppose that one is supported the base station of multi-carrier polymerizing that 3 carrier waves are arranged, a 10MHz (being designated as CC1), 2 5MHz (being designated as respectively CC2, CC3), CC1, CC2 and CC3 frequency are continuous successively.Suppose that CC1 is a compatible carrier wave (namely supporting UE work and the access of LTE R8/R9/R10), CC2 and CC3 are not compatible carrier waves, and the carrier wave of access and resident functions is not provided.
The base station determines that one of them carrier wave notifies and indicate the resource information of the control domain of other carrier waves, determines that the principle of this carrier wave is, this carrier wave prodigiosin provides access capability for UE.Preferably, this carrier wave has backwards compatibility, secondly, if a plurality of carrier waves all have These characteristics, the base station can demand residing according to self be decided and is selected which carrier wave as notice and indicate the carrier wave of resource information of the control domain of other carrier waves so, and for example when having the UE of a large amount of M2M business in communication system, the base station can select the less carrier wave of some bandwidth to carry this class business, because the business characteristic of this class UE is that quantity is little, number of users is many.Fewer when number of users, when the traffic was relatively low, the base station can select the less carrier wave of carrier bandwidths to be used as the described carrier wave that is used to refer to, and was conducive to so follow-up energy-conservation in base station.Owing to only having a carrier wave to have access capability in the present embodiment, so select CC1 as indication carrier wave.
If a large amount of low end UE business or M2M business are arranged in system, the base station can be configured to the control domain in CC2 more be fit to the control domain of above-mentioned business transmission so.Concrete, resource related information and/or the reference signal configuration information of the control domain in CC2 is notified and indicated in the base station by the system broadcast message of CC1.As by add in a certain system information block (SIB, System Information Block) in CC2 other carrier waves of indication in the control domain resource related information and the configuration information of reference signal.The base station UE that just can dispatch cut-in operation from CC1 carries out work in CC2 like this, and in CC2 owing to having configured more reasonably control domain, can promote the efficient that the control domain in CC2 utilizes.Here carrier wave pairing processing can be carried out with CC1 and CC2 in advance in the base station, namely owing to there is no access capability information in CC2, the ability of only having the transmission of data, so the base station can be matched CC1 and CC2 in advance, so just can directly newly increase the resource information unit of a pairing carrier control domain in CC1, and increase a pairing carrier reference signal resource information unit.If CC1 and a plurality of CC pairing, for example CC1 and CC2 and CC3 are paired simultaneously, so need to further indicate in the information unit of above-mentioned increase is control domain resource information and the reference signal configuration information of which CC, otherwise does not need to indicate concrete carrier wave.
if the base station need to be with the UE (UE of LTE R8/R9/R10 of part legacy version in CC1, general reference is not supported the UE of technical solution of the present invention) be dispatched to and carry out work in CC3, this moment, said method can be adopted in the base station so, control domain resource related information and reference signal configuration information at CC1 indicating CC2, this moment, the control domain form can be supported for CC2 configures LTE R8/R9/R10 UE in the base station, the structure of PDCCH for example, OFDM symbol and the PHICH that further can take at the PDCCH of CC1 indicating CC2, certainly these also can directly be configured in CC2 and send, the form of for example supporting according to LTE R8/R9/R10 is configured in CC2, so, after UE enters CC2 work, can independently resolve control domain by the reception of relevant information in CC2.
If the base station need to be dispatched to redaction UE in CC1 in CC2 and work, the type of service of these UE is unicast service, be not suitable for using above-mentioned low end UE business or the control domain of M2M business, so the base station can by CC1 notify and indication carrier wave 2 in control domain be configured to the PDCCH mode, original control domain for low end UE business or M2M business configuration can continue to keep, and be equivalent to by CC1 this moment is the resource related information that CC2 has indicated two kinds of different control domains.
Embodiment 2
Suppose that one is supported the base station of multi-carrier polymerizing that 3 carrier waves are arranged, a 10MHz (being designated as CC1), 2 5MHz (being designated as respectively CC2, CC3), CC1, CC2 and CC3 frequency are continuous successively.Suppose that CC1 and CC2 are a compatible carrier wave (namely supporting UE work and the access of LTE R8/R9/R10), CC3 is not a compatible carrier wave, and the carrier wave of access and resident functions is not provided, and is burst carrier wave or expansion carrier wave.Suppose CC1 and CC3 pairing use.
the base station determines whether to configure control domain in CC3, for example, the base station is carried out in the data transmission procedure of UE in CC3, UE quantity increase along with the needs transmission, anxiety (in CC3, the data dispatch of UE is to dispatch by the control domain in CC1) can appear in the control domain resource in the CC1 that uses with CC3 pairing, this moment, the base station can adopt mode of the present invention to process, notify and indicate UE by CC1 as the base station, configured control domain in CC3, the control domain that further indicates configuration is PDCCH, the relevant configuration mode is identical with PDCCH in existing protocol LTE R10 agreement, adopt CRS to carry out demodulation.This moment, the base station had dual mode to notify the resource information of CC3 control domain in CC1, a kind of is to notify to have configured PDCCH, PCFICH, PHICH in above-mentioned CC3 in the system broadcast information of CC1, and adopt CRS to carry out demodulation, under this mode, just working in CC1 all can receive above-mentioned information with resident UE.Another kind is to adopt point-to-point mode to notify, and the base station is notified by its Dedicated Control Channel to have configured PDCCH, PCFICH, PHICH etc. in CC3 to be in the UE that need to work of connection status in CC3.After the base station is notified by CC1 and indicated the resource information of control domain of CC3, the base station will configure described control domain in CC3, then directly dispatch by the control domain of CC3 the UE that works in CC3.When the control domain scheduling UE of CC1 worked in CC3, if need the UE quantity of scheduling very many, the resource anxiety will appear in the control domain in CC1 so, the situations such as scheduling obstruction, and the technical scheme of this example can address the above problem.If the decline along with quantity and the traffic of UE in CC3, UE be notified and be indicated in the base station can by CC1, do not configure control domain in CC3, advice method is identical with aforementioned advice method, after this dispatch by the control domain of CC1 for the UE that works in CC3 the base station, thereby obtain more resource transmission data in CC3.
By top embodiment, can see, the control domain of dynamic configuration carrier wave, can obtain larger benefit, particularly for burst carrier wave or expansion carrier wave, can take full advantage of the resource of control domain, it is converted into control resource or data resource, make the flexibility of system obtain to promote.
Embodiment three
Suppose that one is supported the base station of multi-carrier polymerizing that 3 carrier waves are arranged, a 10MHz (being designated as CC1), 2 5MHz (being designated as respectively CC2, CC3), CC1, CC2 and CC3 frequency are continuous successively.Suppose that CC1 and CC2 are backward compatibility carrier wave (namely supporting UE work and the access of LTE R8/R9/R10), CC3 is not the backward compatibility carrier wave, and the carrier wave of access and resident functions is not provided, and is burst carrier wave or expansion carrier wave.Suppose CC1 and CC3 pairing use.
In some cases, different business is supported in the base station, such as supporting simultaneously unicast service, MBMS business, M2M business etc., the each have their own characteristics of these business, so corresponding transmission means, control channel, Signalling Designing etc. are different, different business designs control domain more efficiently according to the characteristics of himself, and for example the control domain PDCCH of unicast service is fully not identical with the control domain MCCH of MBMS business.
Along with development, the fusion of wireless communication technology in every field, the base station supports that simultaneously a plurality of business are inevitable.When a base station was supported unicast service and M2M business simultaneously, the base station can adopt following mode to implement.
CC3 is the control domain that there is no self in CC3 as burst carrier wave or expansion carrier wave, can only rely on the carrier wave CC1 of pairing to dispatch.The base station can be preferentially all be dispatched to the UE of M2M carries out work (being preferentially because the M2M business does not need to consider compatible) here in CC3.Perhaps the UE of unicast service is dispatched to and carries out work in CC3.
When the base station is dispatched to UE when carrying out work in CC3, the information of the control domain that configures in the UECC3 that needs scheduling can be notified and indicate by CC1 in the base station, for example indicate the resource information to the UE control domain of M2M business, such as the resource location of control channel, signaling format, signaling etc., guarantee that the UE of M2M can receive control domain exactly in CC3.
Further, the base station can configure the control domain of unicast service in CC3, and UE was notified and indicated in the base station by CC1 this moment, has two control domains in CC3.Unicast service UE carries out the reception of data according to the control domain of clean culture afterwards, and the UE of M2M carries out the reception of data according to the control domain of M2M.The control domain that can guarantee like this two class business all has higher efficient.
Embodiment four
Having two kinds in system at present and be respectively used to UE demodulation control domain with reference to signal, is respectively CRS and DM-RS, wherein also has two kinds to be used for the reference signals that UE carries out channel quality measurement, is respectively CRS, and CSI-RS.
Notify by CC1 when the base station and when indicating control domain resource information in UECC3, should indicate the configuring condition of the reference signal in CC3, for example configured the CRS reference signal in CC3, and the relevant information such as transmission cycle of reference signal, pattern, can know accurately reference signal deployment scenario in CC3 to guarantee to enter UE in CC3.
Can indicate configuration cycle of disposing CRS, CRS in UECC3, mapping pattern information etc. by CC1 such as the base station, be operated in like this UE in CC3 and just can decide with CRS by reference signal information and come demodulation control domain and data field, and carry out channel quality measurement by CRS.
For example the base station can be indicated by CC1 and be disposed CSI-RS in UECC3, does not configure CRS, disposes DM-RS, and the UE that is operated in like this in CC3 just can carry out channel measurement by CSI-RS, carries out the demodulation of data by DM-RS.This moment is due to the existing configuration reason of DM-RS, cause UE can't use DM-RS to carry out the demodulation of control domain (control domain that refers to the PDCCH form), so in the present invention, the base station also needs notify and indicate the control domain in UECC3 to use which type of reference signal to carry out demodulation by CC1, when for example in CC3, control domain is configured to the PDCCH form, the base station need to indicate the DM-RS demodulation to adopt CRS, and the base station need to configure transmission CRS in the PDCCH of CC3 resource.The base station also can be notified in UECC3 and dispose DM-RS in the PDCCH resource location, and the mapping pattern information of DM-RS, and UE can be according to the PDCCH in DM-RS demodulation CC3 like this.
One of ordinary skill in the art will appreciate that, all or part of step in said method can come the instruction related hardware to complete by program, and described program can be stored in computer-readable recording medium, as read-only memory, disk or CD etc.Alternatively, all or part of step of above-described embodiment also can realize with one or more integrated circuits.Correspondingly, each the module/unit in above-described embodiment can adopt the form of hardware to realize, also can adopt the form of software function module to realize.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 inking device of embodiment of the present invention carrier control domain, and as shown in Figure 1, the inking device of embodiment of the present invention carrier control domain comprises:
Dispensing unit 10 is used for configuring by the partial carrier wave of pairing carrier wave the shared resource information of control domain of another part carrier wave.
Above-mentioned dispensing unit 10 also configures by the partial carrier wave of pairing in carrier wave the reference signal information that the control domain of another part carrier wave uses.
Above-mentioned partial carrier wave is the backward compatibility carrier wave;
Described another part carrier wave is at least a of following carrier wave:
Burst carrier wave, expansion carrier wave, backward compatibility carrier wave, the carrier wave that uses with the pairing of backward compatibility carrier wave.
The shared resource information of the control domain of above-mentioned another part carrier wave is: the OFDM number of symbols that takies in the subframe of described another part carrier wave and/or the positional information of OFDM symbol; And/or, the PRB number that takies in the subframe of described another part carrier wave and/or the positional information of PRB.
As shown in Figure 1, the inking device of embodiment of the present invention carrier control domain also comprises:
Notification unit 11 is used for also notifying by the partial carrier wave of pairing carrier wave the information that whether exists in described another part carrier wave for the control domain of UE access.
Described reference signal information comprises the information of described reference signal type, cycle, pattern.
Described control domain is at least one channel in PDCCH, PCFICH and PHICH;
Described reference signal is at least a in CRS, DMRS and CSI-RS.
Above-mentioned another part carrier wave has plural control domain; Wherein, at least one is PDCCH, and described PDCCH is the resource of the described another part carrier wave of UE scheduling, and other control domain also is the resource of UE scheduling with the carrier wave of described another part carrier wave pairing except the resource for the described another part carrier wave of UE scheduling.
Those skilled in the art are to be understood that, the function of the above-mentioned processing unit in the inking device of the carrier control domain that the present invention is shown in Figure 1 can be passed through corresponding hardware circuit, or the mode of processor and corresponding executive software and realizing, for example, above-mentioned notification unit can be realized by the antenna processing system.The correlation function of above-mentioned each processing unit can be referring to the associated description of the embodiment of the collocation method of aforementioned carrier control domain and understand.
The above is only preferred embodiment of the present invention, is not for limiting protection scope of the present invention.
Claims (15)
1. the collocation method of a carrier control domain, is characterized in that, described method comprises:
Network side configures the shared resource information of control domain of another part carrier wave by the partial carrier wave in the pairing carrier wave.
2. method according to claim 1, is characterized in that, described method also comprises:
Described network side also configures by the partial carrier wave of pairing in carrier wave the reference signal information that the control domain of another part carrier wave uses.
3. method according to claim 1, is characterized in that, described partial carrier wave is the backward compatibility carrier wave;
Described another part carrier wave is at least a of following carrier wave:
Burst carrier wave, expansion carrier wave, backward compatibility carrier wave, the carrier wave that uses with the pairing of backward compatibility carrier wave.
4. method according to claim 1, it is characterized in that, the shared resource information of the control domain of described another part carrier wave is: the orthogonal frequency division multiplex OFDM number of symbols that takies in the subframe of described another part carrier wave and/or the positional information of OFDM symbol; And/or, the Physical Resource Block PRB number that takies in the subframe of described another part carrier wave and/or the positional information of PRB.
5. method according to claim 1, is characterized in that, described method also comprises:
Described network side also notifies by the partial carrier wave in the pairing carrier wave information that whether exists in described another part carrier wave for the control domain of user equipment (UE) access.
6. method according to claim 2, is characterized in that, described reference signal information comprises the information of described reference signal type, cycle, pattern.
7. the described method of according to claim 1 to 6 any one, is characterized in that, described control domain is at least one channel in physical downlink control channel PDCCH, Physical Control Format Indicator Channel PCFICH and Physical HARQ Indicator Channel PHICH;
Described reference signal is at least a in the reference signal DMRS of cell special reference CRS, demodulation and channel status indication reference signal CSI-RS.
8. method according to claim 1, is characterized in that, described another part carrier wave has plural control domain; Wherein, at least one is PDCCH, and described PDCCH is the resource of the described another part carrier wave of UE scheduling, and other control domain also is the resource of UE scheduling with the carrier wave of described another part carrier wave pairing except the resource for the described another part carrier wave of UE scheduling.
9. the inking device of a carrier control domain, is characterized in that, described device comprises:
Dispensing unit is used for configuring by the partial carrier wave of pairing carrier wave the shared resource information of control domain of another part carrier wave.
10. device according to claim 9, is characterized in that, described dispensing unit also configures by the partial carrier wave of pairing in carrier wave the reference signal information that the control domain of another part carrier wave uses.
11. device according to claim 9 is characterized in that, described partial carrier wave is the backward compatibility carrier wave;
Described another part carrier wave is at least a of following carrier wave:
Burst carrier wave, expansion carrier wave, backward compatibility carrier wave, the carrier wave that uses with the pairing of backward compatibility carrier wave.
12. device according to claim 9 is characterized in that, the shared resource information of the control domain of described another part carrier wave is: the OFDM number of symbols that takies in the subframe of described another part carrier wave and/or the positional information of OFDM symbol; And/or, the PRB number that takies in the subframe of described another part carrier wave and/or the positional information of PRB.
13. device according to claim 9 is characterized in that, described device also comprises:
Notification unit is used for also notifying by the partial carrier wave of pairing carrier wave the information that whether exists in described another part carrier wave for the control domain of UE access.
14. device according to claim 10 is characterized in that, described reference signal information comprises the information of described reference signal type, cycle, pattern.
15. the described device of according to claim 9 to 14 any one is characterized in that, described control domain is at least one channel in PDCCH, PCFICH and PHICH;
Described reference signal is at least a in 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 |
|---|---|---|---|
| CN201110345903.XA CN103095632B (en) | 2011-11-04 | 2011-11-04 | The collocation method and device of carrier control domain |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810019278.1A Division CN108199999B (en) | 2011-11-04 | 2011-11-04 | Carrier control domain configuration method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103095632A true CN103095632A (en) | 2013-05-08 |
| CN103095632B CN103095632B (en) | 2018-02-06 |
Family
ID=48191312
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110345903.XA Active CN103095632B (en) | 2011-11-04 | 2011-11-04 | The collocation method and device of carrier control domain |
| CN201810019278.1A Active CN108199999B (en) | 2011-11-04 | 2011-11-04 | Carrier control domain configuration method and device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810019278.1A Active CN108199999B (en) | 2011-11-04 | 2011-11-04 | Carrier control domain configuration method and device |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN103095632B (en) |
| WO (1) | WO2013064039A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017197799A1 (en) * | 2016-05-20 | 2017-11-23 | 北京小米移动软件有限公司 | Communication method and device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020237623A1 (en) * | 2019-05-31 | 2020-12-03 | Qualcomm Incorporated | Enhanced mac-ce and rrc ie for multi-carrier configurations |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101800569A (en) * | 2009-02-05 | 2010-08-11 | 中兴通讯股份有限公司 | Method for transmitting reference marks and base station |
| US20110142007A1 (en) * | 2006-08-31 | 2011-06-16 | Hitachi, Ltd. | Communication system using multiple wireless resources during a soft handoff |
| 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 |
| CN102123504A (en) * | 2010-01-11 | 2011-07-13 | 宏达国际电子股份有限公司 | Carrier indication method for wireless communication system and relative communication device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101626625B (en) * | 2009-08-05 | 2015-08-12 | 中兴通讯股份有限公司 | A kind of implementation method of downlink carrier control domain |
| CA2771293C (en) * | 2009-08-14 | 2017-08-29 | Research In Motion Limited | Frame structure and control signaling for 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 |
| US9585164B2 (en) * | 2009-09-25 | 2017-02-28 | 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 |
-
2011
- 2011-11-04 CN CN201110345903.XA patent/CN103095632B/en active Active
- 2011-11-04 CN CN201810019278.1A patent/CN108199999B/en active Active
-
2012
- 2012-10-26 WO PCT/CN2012/083621 patent/WO2013064039A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110142007A1 (en) * | 2006-08-31 | 2011-06-16 | Hitachi, Ltd. | Communication system using multiple wireless resources during a soft handoff |
| 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 |
| CN101800569A (en) * | 2009-02-05 | 2010-08-11 | 中兴通讯股份有限公司 | Method for transmitting reference marks and base station |
| CN102123504A (en) * | 2010-01-11 | 2011-07-13 | 宏达国际电子股份有限公司 | Carrier indication method for wireless communication system and relative communication device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017197799A1 (en) * | 2016-05-20 | 2017-11-23 | 北京小米移动软件有限公司 | Communication method and device |
| US10348540B2 (en) | 2016-05-20 | 2019-07-09 | Beijing Xiaomi Mobile Software Co., Ltd. | Communication method and apparatus, and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013064039A1 (en) | 2013-05-10 |
| CN108199999B (en) | 2021-03-26 |
| CN108199999A (en) | 2018-06-22 |
| CN103095632B (en) | 2018-02-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11647510B2 (en) | Devices and method for communicating PDCCH information and PDSCH data | |
| US11129153B2 (en) | Telecommunications systems and methods for machine type communication | |
| CN110999194B (en) | Communication system | |
| EP3036962B1 (en) | Telecommunications apparatus and methods | |
| CN103391265A (en) | Base station and method for transmitting primary synchronizing signal/secondary synchronizing signal in new carrier | |
| CN106464474B (en) | Communication device, infrastructure equipment and method for LTE communication within unused GSM channels | |
| WO2021146998A1 (en) | Method and apparatus for determining initial bandwidth part (bwp), and storage medium | |
| EP3021627B1 (en) | Carrier configuration with mixed nct and backwards compatible subframes | |
| CN108282875B (en) | Data receiving and sending method and equipment | |
| CN103796314A (en) | UE (User Equipment), PRB (Physical Resource Block) configuration method of USS (UE specific Search Space), system side | |
| JP6767376B2 (en) | Telecommunications equipment and methods | |
| CN103095632A (en) | Collocation method and device of carrier control domain | |
| EP2856819B1 (en) | Methods and devices for carrier aggregation in a wireless communication system | |
| CN103096329A (en) | Carrier wave configuration method and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |