CN105450376A - Control method and apparatus for secondary carrier in asymmetric uplink carrier aggregation - Google Patents
Control method and apparatus for secondary carrier in asymmetric uplink carrier aggregation Download PDFInfo
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- CN105450376A CN105450376A CN201410433129.1A CN201410433129A CN105450376A CN 105450376 A CN105450376 A CN 105450376A CN 201410433129 A CN201410433129 A CN 201410433129A CN 105450376 A CN105450376 A CN 105450376A
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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
Abstract
The embodiment provides a control method and apparatus for a secondary carrier in asymmetric uplink carrier aggregation. The method comprises the steps that a base station transmits configuration information of an uplink secondary carrier configured for the terminal to a terminal, wherein the configuration information comprises carrier-class public configuration information and/or terminal-class configuration information; and further, the base station schedules the uplink secondary carrier via a physical downlink control channel (PDCCH) of a downlink primary carrier based on the aggregation manner of the primary carrier and the uplink secondary carrier so that the terminal can schedule a physical uplink shared channel (PUSCH) for the base station via the uplink secondary carrier, the control on the secondary carrier in the asymmetric uplink carrier aggregation is achieved, and thus, the uplink throughput is significantly improved.
Description
Technical field
The embodiment of the present invention relates to the communication technology, particularly relates to control method and the device of auxiliary carrier wave in a kind of asymmetric up-link carrier polymerization.
Background technology
In current Long Term Evolution (LongTermEvolution is called for short LTE) system, the maximum system bandwidth only supporting 20M of single carrier, in order to meet larger bandwidth demand, then needs to adopt carrier aggregation technology.
In third generation partner program (The3rdGenerationPartnershipProject is called for short 3GPP) agreement, support the polymerization of maximum 5 carrier waves, and require that descending carrier number is more than or equal to up-link carrier number.
But in some industry network applications, a large amount of video monitoring class business can be there is, also namely uplink service demand is greater than downlink business demand, existing carrier aggregation scheme cannot meet the demand of industry network well, in order to meet a large amount of uplink service demands better, introducing up-link carrier number is needed to be greater than the asymmetric up-link carrier polymerization technique of descending carrier number, but not yet propose in prior art how to control auxiliary carrier wave in asymmetric up-link carrier polymerization, therefore, in how being polymerized asymmetric up-link carrier, auxiliary carrier wave carries out control is technical problem to be solved by this invention.
Summary of the invention
This embodiment provides control method and the device of auxiliary carrier wave in a kind of asymmetric up-link carrier polymerization, achieves and controls auxiliary carrier wave in asymmetric up-link carrier polymerization, thus increase substantially uplink throughput.
First aspect, the embodiment of the present invention provides the control method of auxiliary carrier wave in a kind of asymmetric up-link carrier polymerization, at least one carrier aggregation bunch is comprised in carrier aggregation, a downlink main carrier to carry and K up-link carrier is comprised in described carrier aggregation bunch, wherein, a described K up-link carrier comprises 1 up main carrier, K-1 up-link carrier in a described K up-link carrier except described up main carrier is upstream auxiliary carriers, wherein, K be more than or equal to 2 integer, the control method of auxiliary carrier wave in described asymmetric up-link carrier polymerization, comprising:
Base station is sent as the configuration information of the upstream auxiliary carriers of described terminal configuration to terminal, wherein, described configuration information comprises: the common configuration information of carrier level and/or the configuration information of terminating stage;
Described base station is dispatched described upstream auxiliary carriers by the physical downlink control channel PDCCH of described downlink main carrier to carry according to the polymerization methods of main carrier and described upstream auxiliary carriers, with the scheduling making described terminal be carried out Physical Uplink Shared Channel PUSCH to described base station by described upstream auxiliary carriers, wherein, described main carrier comprises: described up main carrier and described downlink main carrier to carry;
Wherein, described polymerization methods comprises: polymerization methods one and polymerization methods two; The employing TDD frame structure of main carrier described in described polymerization methods one and described upstream auxiliary carriers only retain the sub-frame of uplink in tdd frame structure; Main carrier described in described polymerization methods two adopts the whole subframes in tdd frame structure and described upstream auxiliary carriers frame structure to be all sub-frame of uplink.
Further, if described configuration information is the common configuration information of carrier level, described base station is sent as the configuration information of the upstream auxiliary carriers of described terminal configuration to terminal, comprising:
Described base station sends the configuration information of described upstream auxiliary carriers on described downlink main carrier to carry to described terminal by the forms of broadcasting; Or described base station sends the configuration information of described upstream auxiliary carriers to described terminal by radio resource control RRC protocol-specific signaling;
Accordingly, if described configuration information is the configuration information of terminating stage, described base station is sent as the configuration information of the upstream auxiliary carriers of described terminal configuration to terminal, comprising:
Described base station sends the configuration information of described upstream auxiliary carriers to described terminal by RRC dedicated signaling.
Further, described base station is dispatched described upstream auxiliary carriers by the physical downlink control channel PDCCH of described downlink main carrier to carry according to the polymerization methods of main carrier and described upstream auxiliary carriers, comprising:
The polymerization methods of described main carrier and described upstream auxiliary carriers is determined in described base station;
If polymerization methods is described polymerization methods one, if or polymerization methods is described polymerization methods two and described terminal does not support to carry out the reception of main carrier and the transmission of auxiliary carrier wave simultaneously, then described base station is dispatched described upstream auxiliary carriers by the Downlink Control Information DCI format zero arranging described PDCCH, wherein, described DCI format zero comprises first carrier indication information, and described first carrier indication information is used to indicate the upstream auxiliary carriers needing scheduling; Or then described base station is dispatched described upstream auxiliary carriers by RRC dedicated signaling instruction PDCCHDCI form zero channel; Wherein, described PDCCH is for carrying DCI;
If polymerization methods is described polymerization methods two, and the reception of main carrier and the transmission of auxiliary carrier wave are carried out in described terminal support simultaneously, then described base station is dispatched by the sub-frame of uplink of DCI format to described upstream auxiliary carriers arranging PDCCH, wherein, described DCI format comprises: the second carrier indication information and sub-frame of uplink indication information, described second carrier indication information is used to indicate the upstream auxiliary carriers needing scheduling, and described sub-frame of uplink indication information is used to indicate the sub-frame of uplink needing scheduling.
Further, described base station is also comprised after being dispatched described upstream auxiliary carriers by the physical downlink control channel PDCCH of described downlink main carrier to carry according to the polymerization methods of main carrier and described upstream auxiliary carriers:
The feedback information that described base station is dispatched to the PUSCH that described terminal sends described upstream auxiliary carriers by the mixed automatic retransfer instruction physical channel PHICH of described downlink main carrier to carry.
Further, the feedback information that described base station is dispatched to the PUSCH that described terminal sends described upstream auxiliary carriers by the mixed automatic retransfer instruction physical channel PHICH of described downlink main carrier to carry, comprising:
Confirmation ACK/ is not confirmed that nack message is carried on the PHICH space of the described downlink main carrier to carry of expansion by described base station; Or,
Described base station sends ACK/NACK information by the special subspace of upstream auxiliary carriers to described terminal, wherein, the special subspace of described upstream auxiliary carriers is the subspace for described upstream auxiliary carriers in multiple subspaces of being divided into, the PHICH space of described downlink main carrier to carry; Described multiple subspace comprises: the special subspace of described upstream auxiliary carriers and the special subspace of main carrier; Or,
Described base station sends ACK/NACK information by the PHICH space sharing described downlink main carrier to carry to described terminal.
Second aspect, the embodiment of the present invention provides a kind of base station, comprise at least one carrier aggregation bunch in carrier aggregation, comprise a downlink main carrier to carry and K up-link carrier in described carrier aggregation bunch, wherein, a described K up-link carrier comprises 1 up main carrier, K-1 up-link carrier in a described K up-link carrier except described up main carrier is upstream auxiliary carriers, wherein, K be more than or equal to 2 integer, described base station, comprising:
Configuration module, for being sent as the configuration information of the upstream auxiliary carriers of described terminal configuration to terminal, wherein, described configuration information comprises: the common configuration information of carrier level and/or the configuration information of terminating stage;
Scheduler module, described upstream auxiliary carriers is dispatched by the physical downlink control channel PDCCH of described downlink main carrier to carry for the polymerization methods according to main carrier and described upstream auxiliary carriers, with the scheduling making described terminal be carried out Physical Uplink Shared Channel PUSCH to described base station by described upstream auxiliary carriers, wherein, described main carrier comprises: described up main carrier and described downlink main carrier to carry;
Wherein, described polymerization methods comprises: polymerization methods one and polymerization methods two; The employing TDD frame structure of main carrier described in described polymerization methods one and described upstream auxiliary carriers only retain the sub-frame of uplink in tdd frame structure; Main carrier described in described polymerization methods two adopts the whole subframes in tdd frame structure and described upstream auxiliary carriers frame structure to be all sub-frame of uplink.
Further, if described configuration information is the common configuration information of carrier level, described configuration module is specifically for the configuration information being sent described upstream auxiliary carriers on described downlink main carrier to carry by the forms of broadcasting to described terminal; Or, sent the configuration information of described upstream auxiliary carriers to described terminal by radio resource control RRC protocol-specific signaling;
Accordingly, if described configuration information is the configuration information of terminating stage, described configuration module is also specifically for the configuration information being sent described upstream auxiliary carriers by RRC dedicated signaling to described terminal.
Further, described scheduler module specifically for:
Determine the polymerization methods of described main carrier and described upstream auxiliary carriers;
If polymerization methods is described polymerization methods one, if or polymerization methods is described polymerization methods two and described terminal does not support to carry out the reception of main carrier and the transmission of auxiliary carrier wave simultaneously, Downlink Control Information DCI format zero then by arranging described PDCCH is dispatched described upstream auxiliary carriers, wherein, described DCI format zero comprises first carrier indication information, and described first carrier indication information is used to indicate the upstream auxiliary carriers needing scheduling; Or, then by RRC dedicated signaling instruction PDCCHDCI form zero channel, described upstream auxiliary carriers is dispatched; Wherein, described PDCCH is for carrying DCI;
If polymerization methods is described polymerization methods two, and the reception of main carrier and the transmission of auxiliary carrier wave are carried out in described terminal support simultaneously, the sub-frame of uplink of DCI format to described upstream auxiliary carriers then by arranging PDCCH is dispatched, wherein, described DCI format comprises: the second carrier indication information and sub-frame of uplink indication information, described second carrier indication information is used to indicate the upstream auxiliary carriers needing scheduling, and described sub-frame of uplink indication information is used to indicate the sub-frame of uplink needing scheduling.
Further, described base station also comprises:
Feedback module, sends the feedback information of the PUSCH scheduling of described upstream auxiliary carriers to described terminal for the mixed automatic retransfer instruction physical channel PHICH by described downlink main carrier to carry.
Further, described feedback module specifically for:
Confirmation ACK/ is not confirmed that nack message is carried on the PHICH space of the described downlink main carrier to carry of expansion; Or,
Send ACK/NACK information by the special subspace of upstream auxiliary carriers to described terminal, wherein, the special subspace of described upstream auxiliary carriers is the subspace for described upstream auxiliary carriers in multiple subspaces of being divided into, the PHICH space of described downlink main carrier to carry; Described multiple subspace comprises: the special subspace of described upstream auxiliary carriers and the special subspace of main carrier; Or,
ACK/NACK information is sent to described terminal by the PHICH space sharing described downlink main carrier to carry.
In the present invention, base station is by being sent as the configuration information of the upstream auxiliary carriers of described terminal configuration to terminal, wherein, described configuration information comprises: the common configuration information of carrier level and/or the configuration information of terminating stage; Further, described base station is dispatched described upstream auxiliary carriers by the physical downlink control channel PDCCH of described downlink main carrier to carry according to the polymerization methods of main carrier and described upstream auxiliary carriers, with the scheduling making described terminal be carried out PUSCH to described base station by described upstream auxiliary carriers, achieve and auxiliary carrier wave in asymmetric up-link carrier polymerization is controlled, thus increase substantially uplink throughput.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Figure 1A is the asymmetric up-link carrier polymerization schematic diagram that the present invention is based on TDD system;
Figure 1B is the asymmetric up-link carrier polymerization decomposing schematic representation that the present invention is based on TDD system;
Fig. 1 C is the carrier aggregation bunch schematic diagram of the asymmetric up-link carrier polymerization that the present invention is based on TDD system;
Fig. 2 is the schematic flow sheet of the control method embodiment one of auxiliary carrier wave in the polymerization of the present invention's asymmetric up-link carrier;
Fig. 3 A is polymerization methods one schematic diagram of the asymmetric up-link carrier polymerization that the present invention is based on TDD system;
Fig. 3 B is polymerization methods two schematic diagram of the asymmetric up-link carrier polymerization that the present invention is based on TDD system;
Fig. 3 C is polymerization methods three schematic diagram of the asymmetric up-link carrier polymerization that the present invention is based on TDD system;
Fig. 4 is the structural representation of base station embodiment one of the present invention.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Figure 1A is the asymmetric up-link carrier polymerization schematic diagram that the present invention is based on TDD system, Figure 1B is the asymmetric up-link carrier polymerization decomposing schematic representation that the present invention is based on TDD system, and Fig. 1 C is the carrier aggregation bunch schematic diagram of the asymmetric up-link carrier polymerization that the present invention is based on TDD system.The present invention is based on time division duplex (TimeDivisionDuplexing, be called for short TDD) system carrier aggregation in up-link carrier number be greater than descending carrier number, as shown in Figure 1A, comprise N number of descending carrier and M up-link carrier, wherein, N and M is positive integer, and N is less than or equal to M, as shown in Figure 1B, at least one carrier aggregation bunch is comprised in carrier aggregation, also namely all up-downgoing carrier waves can be broken down into multiple carrier aggregation bunch, as shown in Figure 1 C, a downlink main carrier to carry and K up-link carrier is comprised in each carrier aggregation bunch, wherein, a described K up-link carrier comprises 1 up main carrier, K-1 up-link carrier in a described K up-link carrier except described up main carrier is upstream auxiliary carriers, wherein, K be more than or equal to 2 integer.Alternatively, K up-link carrier of polymerization can be following at least one carrier wave: be in the continuous carrier in identical frequency band, be in the discontinuous carrier in identical frequency band and be in the carrier wave of different frequency bands.
Fig. 2 is the schematic flow sheet of the control method embodiment one of auxiliary carrier wave in the polymerization of the present invention's asymmetric up-link carrier, and as shown in Figure 2, the method for the present embodiment can comprise:
S201, base station are sent as the configuration information of the upstream auxiliary carriers of described terminal configuration to terminal.
In the embodiment of the present invention, in order to terminal normally can carry out data transmission or reception on the auxiliary carrier wave that base station is described terminal configuration, described terminal needs the configuration information knowing that described auxiliary carrier wave is relevant, therefore, base station is sent as the configuration information of the upstream auxiliary carriers of described terminal configuration to terminal, wherein, described configuration information comprises: the common configuration information of carrier level and/or the configuration information of terminating stage.Alternatively, the common configuration information of described carrier level can be following at least one information: Physical Random Access Channel (PhysicalRandomAccessChannel, be called for short PRACH) configuration, physical uplink control channel (PhysicalUplinkControlChannel, be called for short PUCCH) configure and detection reference signal (SoundingReferenceSignal is called for short SRS) information; The configuration information of described terminating stage can be following at least one information: CQI (ChannelQualityIndicator, be called for short CQI), pre-coding matrix instruction (PrecodingMatrixIndicator, be called for short PMI), order instruction (RankIndicator, be called for short RI) and confirm (Acknowledgement is called for short ACK) feedback information.
Particularly, if described configuration information is the common configuration information of carrier level, S201 step comprises:
Described base station sends the configuration information of described upstream auxiliary carriers on described downlink main carrier to carry to described terminal by the forms of broadcasting; Or described base station sends the configuration information of described upstream auxiliary carriers by wireless heterogeneous networks (RadioResourceControl is called for short RRC) protocol-specific signaling to described terminal.
In the embodiment of the present invention, if described configuration information is the common configuration information of carrier level, described base station can send the relevant carrier level common configuration information of described upstream auxiliary carriers, so that described terminal normally carries out data transmission in described upstream auxiliary carriers by the forms of broadcasting to described terminal on described downlink main carrier to carry; Alternatively, described base station can also for sending the relevant carrier level common configuration information of described upstream auxiliary carriers by radio resource control RRC protocol-specific signaling to described terminal during described terminal configuration upstream auxiliary carriers.
Particularly, if described configuration information is the configuration information of terminating stage, S201 step comprises:
Described base station sends the configuration information of described upstream auxiliary carriers to described terminal by RRC dedicated signaling.
In the embodiment of the present invention, if described configuration information is the configuration information of terminating stage, described base station sends the relevant terminating stage configuration information of described upstream auxiliary carriers by RRC dedicated signaling to described terminal, so that described terminal normally carries out data transmission in described upstream auxiliary carriers, alternatively, described RRC dedicated signaling can connect reallocation message (RRCConnectionReconfiguration) etc. for RRC.
Alternatively, for supporting that the access of dissimilar terminal can be supported in the community of up-link carrier polymerization, wherein, terminal type can include but not limited to: Class1, be not supported in the terminal of auxiliary carrier dispatching; Type 2, be supported in the terminal that auxiliary carrier wave carries out dispatching, and require that the sub-frame of uplink of the descending sub frame of main carrier and auxiliary carrier wave forms tdd frame structure, and described terminal is not supported to carry out the reception of main carrier and the transmission of auxiliary carrier wave simultaneously; Type 3, be supported in the terminal that auxiliary carrier wave carries out dispatching, and the descending sub frame of main carrier can dispatch the sub-frame of uplink of all auxiliary carrier waves, and the reception of main carrier and the transmission of auxiliary carrier wave are carried out in described terminal support simultaneously.
S202, described base station are dispatched described upstream auxiliary carriers by the physical downlink control channel PDCCH of described downlink main carrier to carry according to the polymerization methods of main carrier and described upstream auxiliary carriers, with the scheduling making described terminal be carried out Physical Uplink Shared Channel PUSCH to described base station by described upstream auxiliary carriers.
Wherein, described main carrier comprises: described up main carrier and described downlink main carrier to carry; Described polymerization methods comprises: polymerization methods one and polymerization methods two; The employing TDD frame structure of main carrier described in described polymerization methods one and described upstream auxiliary carriers only retain the sub-frame of uplink in tdd frame structure; Main carrier described in described polymerization methods two adopts the whole subframes in tdd frame structure and described upstream auxiliary carriers frame structure to be all sub-frame of uplink.
In the embodiment of the present invention, main carrier is only had due to descending, described base station is according to the Physical Downlink Control Channel (PhysicalDownlinkControlChannel of the polymerization methods of described main carrier and described upstream auxiliary carriers by described downlink main carrier to carry, be called for short PDCCH) described upstream auxiliary carriers is dispatched, the scheduling of Physical Uplink Shared Channel (PhysicalUplinkSharedChannel is called for short PUSCH) is carried out to described base station by the described upstream auxiliary carriers for described terminal configuration to make described terminal.Alternatively, the scheduling of all upstream auxiliary carriers all needs to be dispatched by the PDCCH of described downlink main carrier to carry.
Fig. 3 A is polymerization methods one schematic diagram of the asymmetric up-link carrier polymerization that the present invention is based on TDD system, Fig. 3 B is polymerization methods two schematic diagram of the asymmetric up-link carrier polymerization that the present invention is based on TDD system, and Fig. 3 C is polymerization methods three schematic diagram of the asymmetric up-link carrier polymerization that the present invention is based on TDD system.In the embodiment of the present invention, polymerization methods based on the multiple asymmetric up-link carrier polymerization of TDD system comprises: polymerization methods one and polymerization methods two, alternatively, polymerization methods three can also be comprised, wherein, polymerization methods three is the major-minor carrier aggregation mode of 3GPP protocol definition, as shown in Figure 3 C, in polymerization methods three, major-minor carrier wave all adopts normal tdd frame structure (7 kinds of ratio of uplink subframe to downlink subframe as specified in 3GPP), wherein, the ratio of uplink subframe to downlink subframe of major-minor carrier wave can be the same or different.As shown in Figure 3A, main carrier described in polymerization methods one adopts normal tdd frame structure, described auxiliary carrier wave (being also upstream auxiliary carriers) only retains the sub-frame of uplink (descending sub frame in auxiliary carrier wave original tdd frame structure is disabled) in original tdd frame structure, wherein, the sub-frame of uplink of described upstream auxiliary carriers is dispatched by the descending sub frame of main carrier.Alternatively, in order to auxiliary carrier wave and other system coexist, high-power transmission cannot be carried out in base station, and needs can adopt when the descending transmission of base station being shielded polymerization methods one; Alternatively, because current terminal can only support FDD frame structure or tdd frame structure, and downstream grants can only issue at main carrier descending sub frame, and in order to keep tdd frame version, when needing the descending sub frame of auxiliary carrier wave to shield, polymerization methods one can be adopted.As shown in Figure 3 C, main carrier described in polymerization methods two adopts normal tdd frame structure, descending sub frame in described auxiliary carrier wave (being also upstream auxiliary carriers) original tdd frame structure all changes sub-frame of uplink into, also the whole subframes namely in described upstream auxiliary carriers frame structure are all sub-frame of uplink, wherein, all subframes of described upstream auxiliary carriers are dispatched by the descending sub frame of main carrier.
Alternatively, S202 step comprises:
The polymerization methods of described main carrier and described upstream auxiliary carriers is determined in described base station;
If polymerization methods is described polymerization methods one, if or polymerization methods is described polymerization methods two and described terminal does not support to carry out the reception of main carrier and the transmission of auxiliary carrier wave simultaneously, then described base station is by arranging the Downlink Control Information (DownlinkControlInfornation of described PDCCH, being called for short DCI) form zero dispatches described upstream auxiliary carriers, wherein, described DCI format zero comprises first carrier indication information, and described first carrier indication information is used to indicate the upstream auxiliary carriers needing scheduling; Or then described base station is dispatched described upstream auxiliary carriers by RRC dedicated signaling instruction PDCCHDCI form zero channel; Wherein, described PDCCH is for carrying DCI;
If polymerization methods is described polymerization methods two, and the reception of main carrier and the transmission of auxiliary carrier wave are carried out in described terminal support simultaneously, then described base station is dispatched by the sub-frame of uplink of DCI format to described upstream auxiliary carriers arranging PDCCH, wherein, described DCI format comprises: the second carrier indication information and sub-frame of uplink indication information, described second carrier indication information is used to indicate the upstream auxiliary carriers needing scheduling, and described sub-frame of uplink indication information is used to indicate the sub-frame of uplink needing scheduling.
In the embodiment of the present invention, PDCCH is for carrying DCI, and described DCI comprises multiple format (format), wherein, DCIformat0 is used for dispatching uplink resource, DCIformat1X (1,1A, 1B, 1C, 1D etc.) for dispatching downlink resource, DCIformat2X (2,2A, 2B etc.) uses the downlink resource of MIMO for dispatching, DCIformat3X (3,3A) is for carrying power control commands information.The polymerization methods of described main carrier and described upstream auxiliary carriers is first determined in described base station, if determine, the polymerization methods of major-minor carrier wave is polymerization methods a period of time, if or determine that the polymerization methods of major-minor carrier wave is polymerization methods two and described terminal does not support to carry out the transmission of the reception of main carrier and auxiliary carrier wave simultaneously time, described base station is dispatched described upstream auxiliary carriers by the mode expanding PDCCH search space, particularly, described base station is by arranging the DCI format (format) 0 of described PDCCH, wherein, described DCIformat0 comprises first carrier indication information, described first carrier indication information is used to indicate the upstream auxiliary carriers needing scheduling, alternatively, described first carrier indication information can be the upstream auxiliary carriers ID of required scheduling, alternatively, the mode of described base station also by reusing main carrier search volume is dispatched described upstream auxiliary carriers, particularly, described base station is dispatched described upstream auxiliary carriers by RRC dedicated signaling instruction PDCCHDCI form zero channel, also the carrier wave of the current DCIformat0 scheduling of described PDCCH is namely indicated by RRC dedicated signaling, alternatively, when the band of auxiliary carrier wave is wider than the bandwidth of main carrier, Resource Block (the ResourceBlock of DCIformat0 may be there is, be called for short RB) allocation bit (bit) position cannot dispatch whole auxiliary carrier bandwidths, by such as under type solution: i) DCIformat0 resource allocation granularity can be increased, as changed original RB granularity into 2RB granularity or 3RB granularity etc., ii) can the schedulable RB region of limiting terminal, now single user cannot take whole auxiliary carrier bandwidths, but can use whole bandwidth during multiple user.
In the embodiment of the present invention, the polymerization methods of described main carrier and described upstream auxiliary carriers is first determined in described base station, if determine, the polymerization methods of major-minor carrier wave is polymerization methods two and the transmission of the reception of main carrier and auxiliary carrier wave is carried out in described terminal support simultaneously time, described base station realizes dispatching the sub-frame of uplink of described upstream auxiliary carriers by the DCI format arranging new PDCCH, wherein, in polymerization methods two, descending sub frame is less than sub-frame of uplink, the situation that a descending sub frame dispatches multiple sub-frame of uplink must be there is, therefore, described DCI format comprises: the second carrier indication information and sub-frame of uplink indication information, described second carrier indication information is used to indicate the upstream auxiliary carriers needing scheduling, alternatively, described second carrier indication information can be the upstream auxiliary carriers ID of required scheduling, described sub-frame of uplink indication information is used to indicate the sub-frame of uplink needing scheduling.
Alternatively, in the embodiment of the present invention, the polymerization methods of described main carrier and described upstream auxiliary carriers is determined by configuration mode in described base station, alternatively, whether the type of terminal is also known in described base station by terminal to report terminal type ability mode, as supported to carry out the reception of main carrier and the transmission of auxiliary carrier wave simultaneously.
In the embodiment of the present invention, base station is by being sent as the configuration information of the upstream auxiliary carriers of described terminal configuration to terminal, wherein, described configuration information comprises: the common configuration information of carrier level and/or the configuration information of terminating stage; Further, described base station is dispatched described upstream auxiliary carriers by the physical downlink control channel PDCCH of described downlink main carrier to carry according to the polymerization methods of main carrier and described upstream auxiliary carriers, with the scheduling making described terminal be carried out PUSCH to described base station by described upstream auxiliary carriers, achieve and auxiliary carrier wave in asymmetric up-link carrier polymerization is controlled, thus increase substantially uplink throughput.
Further, after S202 step, also comprise:
The feedback information that described base station is dispatched to the PUSCH that described terminal sends described upstream auxiliary carriers by the mixed automatic retransfer instruction physical channel (PhysicalHybridARQindicatorchannel is called for short PHICH) of described downlink main carrier to carry.
In the embodiment of the present invention, main carrier is only had due to descending, PUSCH for auxiliary carrier wave dispatches, the feedback information of base station need carry at described downlink main carrier to carry, particularly, the feedback information that described base station is dispatched to the PUSCH that described terminal sends described upstream auxiliary carriers by the mixed automatic retransfer instruction physical channel PHICH of described downlink main carrier to carry, described feedback information can for confirming that ACK/ does not confirm NACK (Non-Acknowledgement) information.
Particularly, ACK/NACK information is carried on the PHICH space of the described downlink main carrier to carry of expansion by described base station; Or,
Described base station sends ACK/NACK information by the special subspace of upstream auxiliary carriers to described terminal, wherein, the special subspace of described upstream auxiliary carriers is the subspace for described upstream auxiliary carriers in multiple subspaces of being divided into, the PHICH space of described downlink main carrier to carry; Described multiple subspace comprises: the special subspace of described upstream auxiliary carriers and the special subspace of main carrier; Or,
Described base station sends ACK/NACK information by the PHICH space sharing described downlink main carrier to carry to described terminal.
In the embodiment of the present invention, base station sends feedback information by the mode in the PHICH space of expanded downstream main carrier to described terminal, particularly, the ACK/NACK information that the PUSCH of described upstream auxiliary carriers dispatches is carried on the PHICH space of the described downlink main carrier to carry of expansion by base station.Alternatively, the PHICH spatial division of downlink main carrier to carry is multiple subspace by described base station, wherein, described multiple subspace comprises: the special subspace of described upstream auxiliary carriers and the special subspace of main carrier, is also that described multiple subspace is respectively for main carrier, auxiliary carrier wave; Accordingly, described base station sends ACK/NACK information by the special subspace of upstream auxiliary carriers to described terminal, wherein, the special subspace of described upstream auxiliary carriers is the subspace for described upstream auxiliary carriers in multiple subspaces of being divided into, the PHICH space of described downlink main carrier to carry.Alternatively, base station also sends feedback information by the PHICH communal space of downlink main carrier to carry to described terminal, particularly, described base station sends ACK/NACK information by the PHICH space sharing described downlink main carrier to carry to described terminal, also namely described main carrier and upstream auxiliary carriers share the PHICH space of described downlink main carrier to carry, if when clashing, cyclic shift by adjustment demodulated reference signal (De-ModulationReferenceSignal is called for short DMRS) is evaded.
In the invention process, base station is by being sent as the configuration information of the upstream auxiliary carriers of described terminal configuration to terminal, wherein, described configuration information comprises: the common configuration information of carrier level and/or the configuration information of terminating stage; Further, described base station is dispatched described upstream auxiliary carriers by the physical downlink control channel PDCCH of described downlink main carrier to carry according to the polymerization methods of main carrier and described upstream auxiliary carriers, with the scheduling making described terminal be carried out PUSCH to described base station by described upstream auxiliary carriers; Further, the feedback information that described base station is dispatched to the PUSCH that described terminal sends described upstream auxiliary carriers by the mixed automatic retransfer instruction physical channel PHICH of described downlink main carrier to carry, achieve and auxiliary carrier wave in asymmetric up-link carrier polymerization is controlled, thus increase substantially uplink throughput.
Further, the mechanism that the uplink power control of main carrier can adopt current 3GPP to specify, the uplink closed loop of auxiliary carrier wave also can adopt current mechanism, but wherein the power control commands word of up PUSCH carries in the descending PDCCH of described main carrier authorizes.
Alternatively, the path loss in controlling for auxiliary carrier power with reference to the path loss of downlink main carrier to carry, can consider the path loss difference added therebetween on this basis again.
Alternatively, the mechanism that the uplink synchronous of main carrier can adopt current 3GPP to specify, the uplink synchronous of auxiliary carrier wave is divided into open loop Synchronization Control and close-loop power control, wherein, closed-loop synchronization is controlled, can adopt the mechanism identical with main carrier, but the TA command word of auxiliary carrier wave is carried at downlink main carrier to carry; For open loop Synchronization Control, its TA adjustment amount sends to terminal in the descending random response channel of main carrier.。
Fig. 4 is the structural representation of base station embodiment one of the present invention, and as shown in Figure 4, the base station 40 that the present embodiment provides comprises: configuration module 401 and scheduler module 402.
Wherein, at least one carrier aggregation bunch is comprised in carrier aggregation, a downlink main carrier to carry and K up-link carrier is comprised in described carrier aggregation bunch, wherein, a described K up-link carrier comprises 1 up main carrier, K-1 up-link carrier in a described K up-link carrier except described up main carrier is upstream auxiliary carriers, wherein, K be more than or equal to 2 integer;
Configuration module 401 is for being sent as the configuration information of the upstream auxiliary carriers of described terminal configuration to terminal, wherein, described configuration information comprises: the common configuration information of carrier level and/or the configuration information of terminating stage;
Scheduler module 402 is dispatched described upstream auxiliary carriers by the physical downlink control channel PDCCH of described downlink main carrier to carry for the polymerization methods according to main carrier and described upstream auxiliary carriers, with the scheduling making described terminal be carried out Physical Uplink Shared Channel PUSCH to described base station by described upstream auxiliary carriers, wherein, described main carrier comprises: described up main carrier and described downlink main carrier to carry;
Wherein, described polymerization methods comprises: polymerization methods one and polymerization methods two; The employing TDD frame structure of main carrier described in described polymerization methods one and described upstream auxiliary carriers only retain the sub-frame of uplink in tdd frame structure; Main carrier described in described polymerization methods two adopts the whole subframes in tdd frame structure and described upstream auxiliary carriers frame structure to be all sub-frame of uplink.
Alternatively, if described configuration information is the common configuration information of carrier level, described configuration module is specifically for the configuration information being sent described upstream auxiliary carriers on described downlink main carrier to carry by the forms of broadcasting to described terminal; Or, sent the configuration information of described upstream auxiliary carriers to described terminal by radio resource control RRC protocol-specific signaling;
Accordingly, if described configuration information is the configuration information of terminating stage, described configuration module is also specifically for the configuration information being sent described upstream auxiliary carriers by RRC dedicated signaling to described terminal.
Alternatively, described scheduler module specifically for:
Determine the polymerization methods of described main carrier and described upstream auxiliary carriers;
If polymerization methods is described polymerization methods one, if or polymerization methods is described polymerization methods two and described terminal does not support to carry out the reception of main carrier and the transmission of auxiliary carrier wave simultaneously, Downlink Control Information DCI format zero then by arranging described PDCCH is dispatched described upstream auxiliary carriers, wherein, described DCI format zero comprises first carrier indication information, and described first carrier indication information is used to indicate the upstream auxiliary carriers needing scheduling; Or, then by RRC dedicated signaling instruction PDCCHDCI form zero channel, described upstream auxiliary carriers is dispatched; Wherein, described PDCCH is for carrying DCI;
If polymerization methods is described polymerization methods two, and the reception of main carrier and the transmission of auxiliary carrier wave are carried out in described terminal support simultaneously, the sub-frame of uplink of DCI format to described upstream auxiliary carriers then by arranging PDCCH is dispatched, wherein, described DCI format comprises: the second carrier indication information and sub-frame of uplink indication information, described second carrier indication information is used to indicate the upstream auxiliary carriers needing scheduling, and described sub-frame of uplink indication information is used to indicate the sub-frame of uplink needing scheduling.
The base station of the present embodiment, may be used for the technical scheme of the control method embodiment of auxiliary carrier wave in the above-mentioned asymmetric up-link carrier polymerization of the present invention, it realizes principle and technique effect is similar, repeats no more herein.
Alternatively, described base station also comprises:
Feedback module, sends the feedback information of the PUSCH scheduling of described upstream auxiliary carriers to described terminal for the mixed automatic retransfer instruction physical channel PHICH by described downlink main carrier to carry.
Alternatively, described feedback module specifically for:
Confirmation ACK/ is not confirmed that nack message is carried on the PHICH space of the described downlink main carrier to carry of expansion; Or,
Send ACK/NACK information by the special subspace of upstream auxiliary carriers to described terminal, wherein, the special subspace of described upstream auxiliary carriers is the subspace for described upstream auxiliary carriers in multiple subspaces of being divided into, the PHICH space of described downlink main carrier to carry; Described multiple subspace comprises: the special subspace of described upstream auxiliary carriers and the special subspace of main carrier; Or,
ACK/NACK information is sent to described terminal by the PHICH space sharing described downlink main carrier to carry.
One of ordinary skill in the art will appreciate that: all or part of step realizing above-mentioned each embodiment of the method can have been come by the hardware that program command is relevant.Aforesaid program can be stored in a computer read/write memory medium.This program, when performing, performs the step comprising above-mentioned each embodiment of the method; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (10)
1. the control method of auxiliary carrier wave in an asymmetric up-link carrier polymerization, it is characterized in that, at least one carrier aggregation bunch is comprised in carrier aggregation, a downlink main carrier to carry and K up-link carrier is comprised in described carrier aggregation bunch, wherein, a described K up-link carrier comprises 1 up main carrier, K-1 up-link carrier in a described K up-link carrier except described up main carrier is upstream auxiliary carriers, wherein, K be more than or equal to 2 integer, the control method of auxiliary carrier wave in described asymmetric up-link carrier polymerization, comprising:
Base station is sent as the configuration information of the upstream auxiliary carriers of described terminal configuration to terminal, wherein, described configuration information comprises: the common configuration information of carrier level and/or the configuration information of terminating stage;
Described base station is dispatched described upstream auxiliary carriers by the physical downlink control channel PDCCH of described downlink main carrier to carry according to the polymerization methods of main carrier and described upstream auxiliary carriers, with the scheduling making described terminal be carried out Physical Uplink Shared Channel PUSCH to described base station by described upstream auxiliary carriers, wherein, described main carrier comprises: described up main carrier and described downlink main carrier to carry;
Wherein, described polymerization methods comprises: polymerization methods one and polymerization methods two; The employing TDD frame structure of main carrier described in described polymerization methods one and described upstream auxiliary carriers only retain the sub-frame of uplink in tdd frame structure; Main carrier described in described polymerization methods two adopts the whole subframes in tdd frame structure and described upstream auxiliary carriers frame structure to be all sub-frame of uplink.
2. method according to claim 1, is characterized in that, if described configuration information is the common configuration information of carrier level, described base station is sent as the configuration information of the upstream auxiliary carriers of described terminal configuration to terminal, comprising:
Described base station sends the configuration information of described upstream auxiliary carriers on described downlink main carrier to carry to described terminal by the forms of broadcasting; Or described base station sends the configuration information of described upstream auxiliary carriers to described terminal by radio resource control RRC protocol-specific signaling;
Accordingly, if described configuration information is the configuration information of terminating stage, described base station is sent as the configuration information of the upstream auxiliary carriers of described terminal configuration to terminal, comprising:
Described base station sends the configuration information of described upstream auxiliary carriers to described terminal by RRC dedicated signaling.
3. method according to claim 2, is characterized in that, described base station is dispatched described upstream auxiliary carriers by the physical downlink control channel PDCCH of described downlink main carrier to carry according to the polymerization methods of main carrier and described upstream auxiliary carriers, comprising:
The polymerization methods of described main carrier and described upstream auxiliary carriers is determined in described base station;
If polymerization methods is described polymerization methods one, if or polymerization methods is described polymerization methods two and described terminal does not support to carry out the reception of main carrier and the transmission of auxiliary carrier wave simultaneously, then described base station is dispatched described upstream auxiliary carriers by the Downlink Control Information DCI format zero arranging described PDCCH, wherein, described DCI format zero comprises first carrier indication information, and described first carrier indication information is used to indicate the upstream auxiliary carriers needing scheduling; Or then described base station is dispatched described upstream auxiliary carriers by RRC dedicated signaling instruction PDCCHDCI form zero channel; Wherein, described PDCCH is for carrying DCI;
If polymerization methods is described polymerization methods two, and the reception of main carrier and the transmission of auxiliary carrier wave are carried out in described terminal support simultaneously, then described base station is dispatched by the sub-frame of uplink of DCI format to described upstream auxiliary carriers arranging PDCCH, wherein, described DCI format comprises: the second carrier indication information and sub-frame of uplink indication information, described second carrier indication information is used to indicate the upstream auxiliary carriers needing scheduling, and described sub-frame of uplink indication information is used to indicate the sub-frame of uplink needing scheduling.
4. the method according to any one of claim 1-3, it is characterized in that, described base station is also comprised after being dispatched described upstream auxiliary carriers by the physical downlink control channel PDCCH of described downlink main carrier to carry according to the polymerization methods of main carrier and described upstream auxiliary carriers:
The feedback information that described base station is dispatched to the PUSCH that described terminal sends described upstream auxiliary carriers by the mixed automatic retransfer instruction physical channel PHICH of described downlink main carrier to carry.
5. method according to claim 4, is characterized in that, the feedback information that described base station is dispatched to the PUSCH that described terminal sends described upstream auxiliary carriers by the mixed automatic retransfer instruction physical channel PHICH of described downlink main carrier to carry, comprising:
Confirmation ACK/ is not confirmed that nack message is carried on the PHICH space of the described downlink main carrier to carry of expansion by described base station; Or,
Described base station sends ACK/NACK information by the special subspace of upstream auxiliary carriers to described terminal, wherein, the special subspace of described upstream auxiliary carriers is the subspace for described upstream auxiliary carriers in multiple subspaces of being divided into, the PHICH space of described downlink main carrier to carry; Described multiple subspace comprises: the special subspace of described upstream auxiliary carriers and the special subspace of main carrier; Or,
Described base station sends ACK/NACK information by the PHICH space sharing described downlink main carrier to carry to described terminal.
6. a base station, it is characterized in that, comprise at least one carrier aggregation bunch in carrier aggregation, comprise a downlink main carrier to carry and K up-link carrier in described carrier aggregation bunch, wherein, a described K up-link carrier comprises 1 up main carrier, K-1 up-link carrier in a described K up-link carrier except described up main carrier is upstream auxiliary carriers, wherein, K be more than or equal to 2 integer, described base station, comprising:
Configuration module, for being sent as the configuration information of the upstream auxiliary carriers of described terminal configuration to terminal, wherein, described configuration information comprises: the common configuration information of carrier level and/or the configuration information of terminating stage;
Scheduler module, described upstream auxiliary carriers is dispatched by the physical downlink control channel PDCCH of described downlink main carrier to carry for the polymerization methods according to main carrier and described upstream auxiliary carriers, with the scheduling making described terminal be carried out Physical Uplink Shared Channel PUSCH to described base station by described upstream auxiliary carriers, wherein, described main carrier comprises: described up main carrier and described downlink main carrier to carry;
Wherein, described polymerization methods comprises: polymerization methods one and polymerization methods two; The employing TDD frame structure of main carrier described in described polymerization methods one and described upstream auxiliary carriers only retain the sub-frame of uplink in tdd frame structure; Main carrier described in described polymerization methods two adopts the whole subframes in tdd frame structure and described upstream auxiliary carriers frame structure to be all sub-frame of uplink.
7. base station according to claim 6, it is characterized in that, if described configuration information is the common configuration information of carrier level, described configuration module is specifically for the configuration information being sent described upstream auxiliary carriers on described downlink main carrier to carry by the forms of broadcasting to described terminal; Or, sent the configuration information of described upstream auxiliary carriers to described terminal by radio resource control RRC protocol-specific signaling;
Accordingly, if described configuration information is the configuration information of terminating stage, described configuration module is also specifically for the configuration information being sent described upstream auxiliary carriers by RRC dedicated signaling to described terminal.
8. base station according to claim 7, is characterized in that, described scheduler module specifically for:
Determine the polymerization methods of described main carrier and described upstream auxiliary carriers;
If polymerization methods is described polymerization methods one, if or polymerization methods is described polymerization methods two and described terminal does not support to carry out the reception of main carrier and the transmission of auxiliary carrier wave simultaneously, Downlink Control Information DCI format zero then by arranging described PDCCH is dispatched described upstream auxiliary carriers, wherein, described DCI format zero comprises first carrier indication information, and described first carrier indication information is used to indicate the upstream auxiliary carriers needing scheduling; Or, then by RRC dedicated signaling instruction PDCCHDCI form zero channel, described upstream auxiliary carriers is dispatched; Wherein, described PDCCH is for carrying DCI;
If polymerization methods is described polymerization methods two, and the reception of main carrier and the transmission of auxiliary carrier wave are carried out in described terminal support simultaneously, the sub-frame of uplink of DCI format to described upstream auxiliary carriers then by arranging PDCCH is dispatched, wherein, described DCI format comprises: the second carrier indication information and sub-frame of uplink indication information, described second carrier indication information is used to indicate the upstream auxiliary carriers needing scheduling, and described sub-frame of uplink indication information is used to indicate the sub-frame of uplink needing scheduling.
9. the base station according to any one of claim 6-8, is characterized in that, also comprises:
Feedback module, sends the feedback information of the PUSCH scheduling of described upstream auxiliary carriers to described terminal for the mixed automatic retransfer instruction physical channel PHICH by described downlink main carrier to carry.
10. base station according to claim 9, is characterized in that, described feedback module specifically for:
Confirmation ACK/ is not confirmed that nack message is carried on the PHICH space of the described downlink main carrier to carry of expansion; Or,
Send ACK/NACK information by the special subspace of upstream auxiliary carriers to described terminal, wherein, the special subspace of described upstream auxiliary carriers is the subspace for described upstream auxiliary carriers in multiple subspaces of being divided into, the PHICH space of described downlink main carrier to carry; Described multiple subspace comprises: the special subspace of described upstream auxiliary carriers and the special subspace of main carrier; Or,
ACK/NACK information is sent to described terminal by the PHICH space sharing described downlink main carrier to carry.
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| CN201410433129.1A CN105450376B (en) | 2014-08-28 | 2014-08-28 | The control method and device of secondary carrier in asymmetric up-link carrier polymerization |
| PCT/CN2015/087627 WO2016029819A1 (en) | 2014-08-28 | 2015-08-20 | Method and apparatus for controlling a secondary carrier in asymmetric uplink carrier aggregation |
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| CN201410433129.1A CN105450376B (en) | 2014-08-28 | 2014-08-28 | The control method and device of secondary carrier in asymmetric up-link carrier polymerization |
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| WO2016029819A1 (en) | 2016-03-03 |
| CN105450376B (en) | 2018-07-27 |
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