CN101932024A - Downlink control information transmitting method and device - Google Patents
Downlink control information transmitting method and device Download PDFInfo
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- CN101932024A CN101932024A CN2009101397120A CN200910139712A CN101932024A CN 101932024 A CN101932024 A CN 101932024A CN 2009101397120 A CN2009101397120 A CN 2009101397120A CN 200910139712 A CN200910139712 A CN 200910139712A CN 101932024 A CN101932024 A CN 101932024A
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Abstract
The embodiment of the invention provides a downlink control information transmitting method and device. The method comprises the following steps: determining the quantity of configurable DCI formats in the user device specific search space in the downlink unit carrier of the configured user device; respectively sequencing the priority of the DCI formats supported by the transmission mode of each current configuration to obtain the sequencing result of the priority of the DCI formats supported by the transmission mode of each current configuration; determining the configurable DCI format set in the user device specific search space in the downlink unit carrier according to the quantity of the configurable DCI formats and the sequencing result of the priority of the DCI formats; and transmitting the DCI to the user device by using the DCI formats in the set. In the invention, the DCI is selected and transmitted after being limited by the configurable DCI formats in the downlink unit carrier, thereby effectively reducing the number of blind detections on the DCI formats in the downlink unit carrier by the user device.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to a kind of downlink control information sending method and device.
Background technology
At Long Term Evolution (LTE, Long Term Evolution) in the system, subscriber equipment (UE, UserEquipment) receive or send before the business datum, need know base station (eNB, Evolved NodeB) Downlink Control Information (DCI, Downlink Control Information) of this subscriber equipment is given in configuration.Downlink Control Information (DCI) can be down dispatch information, uplink scheduling information, uplink power control order or some broadcast signalings, its form comprises: Format 0, Format 1, Format 1A, Format 1B, Format 1C, Format 1D, Format 2, Format 2A, Format 3 and Format 3A.
DCI can pass through physical layer descending control channel (PDCCH, Physical Downlink Controlchannel) carrying, the PDCCH of user's blind Detecting oneself in the search volume, wherein, the search volume can be divided into common search space and subscriber equipment particular search space (UE specific search space).
In order to improve transmission bandwidth, increase spectrum efficiency, need to support new uplink transmission mode/downlink transfer pattern, every kind of uplink transmission mode/downlink transfer pattern also needs to increase the DCI form that can support, so just makes the number of times of UE blind Detecting increase considerably.
And when having carried the control channel of a plurality of descending and/or upstream cell carrier waves on a downstream units carrier wave, on this downstream units carrier wave, subscriber equipment just detects more DCI form possibly in the specific search volume of subscriber equipment.Therefore, make UE blind Detecting number of times significantly increase.Problems such as it is excessive that the increase of UE blind Detecting number of times can cause power consumption, and the blind Detecting mistake is too much.
Summary of the invention
The embodiment of the invention provides a kind of downlink control information sending method and device, to reduce the blind Detecting number of times of subscriber equipment.
On the one hand, the embodiment of the invention provides a kind of downlink control information sending method, and this method comprises: the quantity of the DCI form that can be configured in the subscriber equipment particular search space in the downstream units carrier wave of the subscriber equipment of definite configuration; DCI form to the transmission mode support of every kind of current configuration carries out prioritization respectively, obtains the prioritization result of the DCI form that the transmission mode of every kind of current configuration supports; The prioritization result of the DCI form of supporting according to the transmission mode of the quantity of the DCI form that can be configured in the subscriber equipment particular search space in the downstream units carrier wave of the subscriber equipment of described configuration and described every kind of current configuration determines the set of the DCI form that can be configured in the subscriber equipment particular search space in the described downstream units carrier wave; Utilize the DCI form in the described set that DCI is sent to described subscriber equipment.
On the one hand, the embodiment of the invention provides a kind of base station, and this base station comprises: first determining unit is used for determining the quantity of the DCI form that the downstream units carrier wave subscriber equipment particular search space of the subscriber equipment of configuration can be configured; Sequencing unit is used for respectively the DCI form of the transmission mode support of every kind of current configuration is carried out prioritization, obtains the prioritization result of the DCI form that the transmission mode of every kind of current configuration supports; Second determining unit, the prioritization result who is used for the DCI form that the transmission mode of the quantity of the DCI form that can be configured in the downstream units carrier wave subscriber equipment particular search space according to the subscriber equipment of described configuration and described every kind of current configuration supports determines the set of the DCI form that can be configured in the subscriber equipment particular search space in the described downstream units carrier wave; Transmitting element is used for utilizing the DCI form of described set that DCI is sent to described subscriber equipment.
On the other hand, the embodiment of the invention provides a kind of method of blind Detecting DCI form, and this method comprises: the quantity of determining the DCI form that can be configured in the subscriber equipment particular search space in the downstream units carrier wave; Determine the priority of the DCI form that every kind of transmission mode of the current configuration in base station is supported; The priority of the DCI form of supporting according to the transmission mode of the quantity of the DCI form that can be configured in the subscriber equipment particular search space in the described downstream units carrier wave and described every kind of current configuration is determined the set of the DCI form that can be configured in the subscriber equipment particular search space in the described downstream units carrier wave; DCI form in the described set is carried out blind Detecting.
On the other hand, the embodiment of the invention provides a kind of subscriber equipment, and this subscriber equipment comprises: first determining unit is used for determining the quantity of the DCI form that can be configured in the downstream units carrier wave subscriber equipment particular search space; Second determining unit is used for determining the priority of the DCI form that every kind of transmission mode of the current configuration in base station is supported; The 3rd determining unit, the quantity of the DCI form that can be configured in the downstream units carrier wave subscriber equipment particular search space that is used for determining according to described first determining unit, the priority of the DCI form that every kind of transmission mode of the current configuration of determining with described second determining unit in base station is supported is determined the set of the DCI form that can be configured in the subscriber equipment particular search space in the described downstream units carrier wave; Detecting unit is used for the DCI form of the definite set of described the 3rd determining unit is carried out blind Detecting.
The method and apparatus of the embodiment of the invention, by the DCI form is sorted, and according to DCI form quantity that can be configured in the subscriber equipment particular search space and ranking results selection corresponding D CI form, the DCI form that makes UE need carry out blind Detecting reduces, and has effectively reduced the blind Detecting number of times of subscriber equipment.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the method flow diagram that the embodiment of the invention provides;
Fig. 2 is the flow chart of a kind of implementation method of middle step 103 embodiment illustrated in fig. 1;
Fig. 3 is the flow chart of the another kind of embodiment method of middle step 103 embodiment illustrated in fig. 1;
Fig. 4 is the device composition frame chart that the embodiment of the invention provides;
Fig. 5 is the method flow diagram of the blind Detecting DCI form of the embodiment of the invention;
Fig. 6 is the composition frame chart of the subscriber equipment of the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Embodiment one
The embodiment of the invention provides a kind of downlink control information sending method, below in conjunction with accompanying drawing present embodiment is elaborated.
Fig. 1 is the method flow diagram of the embodiment of the invention, please refer to Fig. 1, and the downlink control information sending method of present embodiment comprises:
Wherein, the step 101 of said method and 102 does not limit execution sequence, for example can first execution in step 101 execution in step 102 again, also can first execution in step 102 execution in step 101 again, can also two steps carry out simultaneously.
Wherein, step 104 can adopt mode of the prior art to realize, present embodiment not with this as restriction.
By the method for present embodiment, choose transmission again after the DCI form that can be configured on the downstream units carrier wave limited, can effectively reduce the DCI blind Detecting number of times on the downstream units carrier wave, and flexible adaptation different application scene.
Wherein, each step of the method for present embodiment can realize by different modes, below in conjunction with different embodiment this is illustrated.
Embodiment two
Present embodiment also provides a kind of downlink control information sending method, this method for example can be applied to the base station and other have the entity of similar functions, and the DCI format list that provides below in conjunction with accompanying drawing and LTE Rel-8 system is elaborated to the method for present embodiment.
In the LTE Rel-8 system, the load (payload) of DCI Format 0 and DCIFormat 1A is identical, distinguish by 1 bit header, from the blind Detecting angle, be equivalent to a kind of DCI form, therefore for the LTE-A system,, only regard a kind of form in embodiments of the present invention as if the DCI form that increases newly or revise has adopted the method for designing of Format 0 and Format1A.
In order to help to understand the embodiment of the invention, suppose that uplink transmission mode 1 sends for single antenna, the continuous frequency domain resource of DCIformat 0 indication is distributed, and DCI format 0_1 indicates discontinuous frequency domain resource to distribute.
Introduce the DCI format 0 of DCI format list that LTE Rel-8 system provides and LTE-A uplink transmission mode 1 correspondence and DCI format 0_1 and be in order to help to understand the embodiment of the invention, but not the embodiment of the invention is limited.
Please continue with reference to Fig. 1, in the step 101 of present embodiment, determine the quantity of the DCI form that can be configured in the subscriber equipment particular search space in the downstream units carrier wave of subscriber equipment of configuration, can determine according to PDCCH number to be detected in the maximum blind Detecting ability of described downstream units carrier wave support and the subscriber equipment particular search space.
For example: the quantity of the DCI form that can be configured in the subscriber equipment particular search space in the downstream units carrier wave of the subscriber equipment of definite configuration is round (PDCCH number to be detected in (PDCCH number to be detected in the maximum blind Detecting number of times-common search space on the downstream units carrier wave)/subscriber equipment particular search space), wherein, round represents round.Suppose that certain downstream units carrier wave can support 60 blind checks, the search volume definition is the same with LTE Rel-8, then the subscriber equipment particular search space on this downstream units carrier wave can be configured DCI form number be: round ((60-12)/16)=3.
In the present embodiment, because LTE-A subscriber equipment receiving system structure there are differences, the maximum blind Detecting ability of each downstream units carrier wave support may be fixed, and also may be semi-static configurable.
When the maximum blind Detecting ability of each downstream units carrier wave support immobilized, subscriber equipment was not subjected to other environmental parameter, or factor affecting such as system configuration.
The maximum blind Detecting ability of supporting when each downstream units carrier wave is semi-static when configurable, the maximum blind Detecting ability of described downstream units carrier wave support can be determined according to the maximum blind Detecting ability of subscriber equipment support and the maximum polymerizable downstream units carrier wave number of current configuration, also can determine according to the maximum polymerizable downstream units carrier wave number and the current type of described downstream units carrier wave of the maximum blind Detecting ability of subscriber equipment support, current configuration.
Wherein, the maximum blind Detecting ability of subscriber equipment support is by the decoding ability decision of subscriber equipment self.When subscriber equipment decoding ability was strong, the maximum blind Detecting ability of the PDCCH that this subscriber equipment is supported was also stronger.
Wherein, the downstream units carrier type mainly is meant for certain subscriber equipment, the situation of its downstream units carriers carry PDCCH mainly contains 3 types: this downstream units carrier wave only carries the PDCCH of this downstream units carrier wave and/or the upstream cell carrier wave corresponding with this downstream units carrier wave; This downstream units carrier wave does not carry PDCCH; This downstream units carrier wave both can carry the PDCCH of this downstream units carrier wave and/or the upstream cell carrier wave corresponding with this downstream units carrier wave, can carry other PDCCH descending and/or other upstream cell carrier wave again.
For example: the maximum blind Detecting ability of the PDCCH of subscriber equipment support is 200 times, and the maximum polymerizable unit carrier wave number of current semi-static configuration is 4, and then each downstream units carrier wave maximum blind Detecting number of times that can be configured is 200/4=50.If consider current downstream units carrier type, the maximum blind Detecting number of times that each downstream units carrier wave can be configured can be different, but add and can not surpass maximum blind check number of times, and for example each downstream units carrier wave is supported blind Detecting respectively 80,80,40 and 0 times.
In the present embodiment, the fixing set of parameter of PDCCH number to be detected in the subscriber equipment particular search space; Also may introduce many cover parameters, according to the downstream units carrier number of distributing to subscriber equipment, factors such as downstream units carrier type are carried out semi-static adjustment.
Please continue with reference to Fig. 1, in the present embodiment, in order to have backwards compatibility, in subscriber equipment particular search space, except indivedual special circumstances, as semi-continuous scheduling Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (SPSC-RNTI, Semi-Persistent Scheduling Cell Radio Network Temporary Identifier) beyond the pattern 5 and 6 under the configuration, every kind of corresponding at least 2 kinds of DCI forms of downlink transfer pattern, some or every kind of uplink transmission mode may be supported 2 kinds or more DCI forms.The current schedulable up-downgoing of meeting configure user equipment unit, base station carrier wave, the transmission mode of current schedulable up-downgoing unit carrier wave correspondence both had been called the transmission mode of current configuration, therefore it is useful all DCI forms of the transmission mode support of every kind of current configuration being carried out priority arrangement, can dwindle the blind Detecting scope.
In the step 102 of present embodiment, all DCI forms to the transmission mode support of every kind of current configuration carry out priority arrangement respectively, can be by the mode of signaling, and perhaps predefined mode, perhaps the mode according to user equipment to report information implicit expression correspondence realizes, wherein:
Mode for signaling, after priority arrangement is carried out to the DCI form of the transmission mode support of every kind of current configuration respectively in the base station, will comprise prioritization result's the signaling of DCI form or the signaling that can implicit expression maps out the prioritization result and be sent to subscriber equipment.
Wherein, prioritization result's the signaling that comprises the DCI form is as showing signaling, directly the DCI priority arrangement supported of the transmission mode of the present every kind of current configuration of notifying user equipment.For example, for downlink transfer pattern 1, show the signaling subscriber equipment by this, the priority of DCI format 1A is lower than DCI format 1.
Wherein, the signaling that energy implicit expression maps out the prioritization result because existence acquiescence mapping relations between signaling that sends and the priority arrangement need only subscriber equipment and receive signaling, just can correspondence go out present priority arrangement as conceal signaling.For example, it is to be configured or to be configured according to the non-power limitation scene according to the power limited scene at present that the base station sends a signaling subscriber equipment, if notice is the power limited scene, the DCI format preference level that then corresponding the up continuous frequency domain resource of indication is distributed is higher or only support the DCI form that the up continuous frequency domain resource of indication is distributed; If notice is the non-limitation scene of power, the DCI format preference level that then corresponding indication upstream discontinuous frequency domain resource is distributed is higher or only support the DCI form that indication upstream discontinuous frequency domain resource is distributed.Suppose under the up single antenna transmissions pattern, DCI format 0 correspondence continuous resource and is distributed, DCI format 0_1 correspondence discontinuous resource allocation, if signaling is the power limited scene, then DCI format 0 priority is higher than DCI format0_1, perhaps only supports DCI format 0.
Wherein, implicit expression or show that signaling can pass through the semi-static notice of high-level signaling also can dynamically be notified by layer one/layer two signaling, present embodiment not with this as restriction.
For predefined mode, subscriber equipment and base station can consult the DCI format preference level ordering rule that every kind of transmission mode is supported in advance, after sorting to the DCI form of every kind of transmission mode support according to the DCI format preference level ordering rule of every kind of transmission mode support of this setting in the base station, subscriber equipment can carry out blind check to the DCI form according to identical DCI format preference power ordering rule.For example, for downlink transfer pattern 4, subscriber equipment and base station appoint that in advance the priority of DCI format 1A is lower than DCI format 2.
For mode according to user equipment to report information implicit expression correspondence, because subscriber equipment can report various metrical informations to the base station, as channel quality indication (CQI, Channel Quality Indicator), Reference Signal Received Power (RSRP, Reference Signal Received Power), power space (PowerHeadroom) etc., therefore, the prioritization rule can be consulted for different reporting informations in advance with subscriber equipment in the base station, arrange criterion with information and corresponding priorities, the DCI form under every kind of transmission mode is carried out prioritization according to user equipment to report.
For example, what power space was represented is the subscriber equipment power headroom, it is the difference of maximum transmitting power that allows of subscriber equipment and present transmitting power, can be used for identifying whether subscriber equipment is in the power limited scene at present, if power limited then DCI format preference level that corresponding the up continuous frequency domain resource of indication is distributed are higher or only support the DCI form that the up continuous frequency domain resource of indication is distributed, otherwise the DCI format preference level that corresponding indication upstream discontinuous frequency domain resource is distributed is higher or only support the DCI form that indication upstream discontinuous frequency domain resource is distributed.Whether be in the power limited scene for how to differentiate subscriber equipment according to power space, system needs the good decision threshold of predefined.
In the present embodiment, above-mentioned three kinds of methods can be used separately, also can unite use the DCI form of the transmission mode support of every kind of current configuration is carried out prioritization, for example unite three kinds of methods, or the wherein any two kinds of methods of associating.If the associating use for example has following three kinds of methods: one, can priority orders of predefine, for example the mode of signaling＞according to the mode＞predefined mode of user equipment to report information implicit expression correspondence, wherein, "＞" expression has precedence over.Two, sortord that can every kind of transmission mode of predefine, for example the up single antenna transmissions pattern 1 of predefine adopts the mode of conceal signaling notice to sort, and descending single antenna transmissions pattern 1 adopts predefined mode to sort.Three, sortord that can the current transmission mode of system configuration, for example, for certain subscriber equipment, the current downstream units carrier wave that is scheduled has 2, transmission mode all is configured to 1, adopts predefined ranking results, and the priority of DCIformat 1A is lower than DCI format 1; The current upstream cell carrier wave that is scheduled has 1, and transmission mode is 1, adopts the method for conceal signaling notice, and what suppose signaling is the power limited scene, and then DCI format 0 priority is higher than DCI format 0_1, perhaps only supports DCI format 0.
Please continue with reference to Fig. 1, in the step 103 of present embodiment, determine the set of the DCI form that can be configured in the subscriber equipment particular search space in the downstream units carrier wave, different according to the corresponding relation of the data channel of control channel and its scheduling will have different definite modes.
Wherein, the corresponding situation of data channel for control channel and its scheduling, also promptly when each downstream units carrier wave only carries the physical layer descending control channel PDCCH of this downstream units carrier wave and/or the upstream cell carrier wave corresponding with this downstream units carrier wave, please refer to Fig. 2, above-mentioned steps 103 can for:
Step 201 is chosen the highest DCI form of priority as the element in the described set from the prioritization result of the DCI form of the transmission mode support of every kind of current configuration;
Step 202, if the quantity of selected DCI form surpasses the quantity of the DCI form that described downstream units carrier wave can be configured, then the prioritization result of the DCI form of supporting from the transmission mode of described every kind of current configuration, the DCI form of choosing time priority is as the element in the described set, the quantity of element reaches the quantity of the DCI form that described downstream units carrier wave can be configured in described set, or all DCI forms that participate in ordering are all chosen.
In the present embodiment, be the prioritization result of the DCI form supported according to the transmission mode of every kind of current configuration, choose the DCI form successively as the element in the set according to priority order from high to low, the quantity of element reaches the quantity of the DCI form that this downstream units carrier wave can be configured in set, or all DCI forms that participate in ordering are all chosen.
Particularly, when described downstream units carrier wave only need carry a kind of PDCCH of transmission mode, the prioritization result of the DCI form of supporting according to this transmission mode chooses as the element the described set toward low from high, and the number of choosing must not be above the DCI form number that can be configured.For example, only carried the PDCCH of this downstream units carrier wave on certain downstream units carrier wave, its transmission mode is 4, the DCI form number that can be configured in the subscriber equipment particular search space in this downstream units carrier wave is 2, then the element of the set of the DCI form that can be configured in the subscriber equipment particular search space in this downstream units carrier wave is DCIformat 2 and DCI format 1A, and promptly subscriber equipment needs blind Detecting DCIformat 2 and two kinds of forms of DCI format 1A on this downstream units carrier wave.
Particularly, when described downstream units carriers carry during the PDCCH of two kinds of transmission modes of up-downgoing, at first from two kinds of transmission modes of up-downgoing, choose the highest DCI form of priority as the element in the set, if the number of element does not surpass the DCI form number that described downstream units carrier wave can be configured in the set, continue to choose the DCI form of time priority as the element in the set, operate according to this, choose up to reaching the DCI form number upper limit that described downstream units carrier wave can be configured or all DCI forms of these two kinds of transmission mode supports, just finish to choose.For example, the DCI form number that subscriber equipment particular search space on certain downstream units carrier wave can be configured is 2, high-rise configurating downlink transmission mode is 4, DCI format 2 priority are higher than DCI format 1A, uplink transmission mode is 1, DCI format 0_1 priority is higher than DCI format 0, so the element of the set of the DCI form that can be configured in the subscriber equipment particular search space on this element carrier wave is DCI format 2 and DCI format 0_1, promptly subscriber equipment needs blind Detecting DCI format 2 and two kinds of forms of DCI format 0_1 on this downstream units carrier wave.
Wherein, corresponding for the data channel of both supporting control channel and its scheduling, support the situation that the data channel of control channel and its scheduling separates again, also promptly on certain downstream units carrier wave, both can carry the PDCCH of this downstream units carrier wave and/or the upstream cell carrier wave corresponding with this downstream units carrier wave, in the time of can carrying the PDCCH of other descending and/or other upstream cell carrier wave again, please refer to Fig. 3, above-mentioned steps 103 can for:
Step 301 is chosen the highest DCI form of priority as the element in the described set from the prioritization result of the DCI form of the transmission mode support of every kind of current configuration;
Concretely, corresponding for the data channel of both supporting control channel and its scheduling, support the situation that the data channel of control channel and its scheduling separates again, downstream units carrier wave can carry the PDCCH of a plurality of descending and/or upstream cell carrier waves.If a plurality of unit carrier wave has different transmission modes, subscriber equipment can all PDCCH forms cause the blind Detecting number of times to increase on a plurality of unit carrier wave because need to detect, and therefore choosing of DCI form are even more important.
Method according to present embodiment, at first from the transmission mode of every kind of current configuration, choose the highest DCI form of priority, if the number summation surpasses the DCI form number that described downstream units carrier wave can be configured, DCI form to the limit priority of the DCI form of the limit priority of uplink transmission mode support and/or the support of downlink transfer pattern reduces respectively, and the DCI form after the reduction is as the element in the described set; If the number summation does not surpass the DCI form number that can be configured in the described downstream units carrier wave, then selected DCI form is as the element in the described set, and continue to choose the DCI form of time high priority, operate according to this, the quantity of element reaches the DCI form number upper limit that each downstream units carrier wave can be configured or the DCI form that all participate in ordering all chosen in described set, just end operation.
For example, currently only support 1 upstream cell carrier wave: transmission mode is 1, and DCI format 0_1 priority is higher than DCI format 0; 2 downstream units carrier aggregation of current support: downstream units carrier wave 1 transmission mode is 2, and DCI format 1 priority is higher than DCI format 1A, and downstream units carrier wave 2 transmission modes are 4, and DCI format 2 priority are higher than DCI format 1A.All in carrying on 1 on the downstream units carrier wave, the DCI form number that its subscriber equipment particular search space can be configured is 2 to all PDCCH.The then up DCI format 0_1 that chooses is as the element in the set, descendingly need reduce the back as the element in the set to DCI format 1 and DCI format 2.
Wherein, the method that the DCI form of uplink transmission mode or the support of downlink transfer pattern is reduced has following 2 kinds, but present embodiment not with this as restriction, wherein:
The DCI form that method one, the transmission mode that disposes on the exclusive segment unit carrier wave are supported, the DCI form that the transmission mode of promptly only supporting to dispose on one or more unit carrier wave is supported, unassisted for the DCI form that other transmission mode is supported.For example: the PDCCH on unit carrier wave on 2 downstream units carrier waves of carrying, the transmission mode of the unit carrier wave of carrying PDCCH is 4, the transmission mode of the unit carrier wave of non-bearing PDCCH is 6, respectively corresponding these the two kinds of transmission modes of DCI format 2 and DCI format 1B, if only support the unit carrier wave of carrying PDCCH, then the DCI format2 of transmission mode 4 correspondences can be configured, and promptly indicates the PDCCH of two unit carrier waves all to adopt DCI format 2.
Method two, in the DCI form of described participation reduction, the DCI form less to load (information bit) adds 0, for example DCI form and/or the load time little DCI form with the load minimum adds 0, reach the load size of the DCI form of the described participation reduction of all or part, add header then and distinguish form, be similar to DCI format 0 and DCI format 1A.Like this, be equivalent to reduce and needed the DCI of blind Detecting form.For example to DCI format 2 in the downlink transfer pattern, DCI format 1D and DCI format 1 reduce, wherein the load of DCI format 2 is greater than DCI format 1D, DCI format 1D is added 0, make DCI format 2 identical with the load size of DCI format 1D, and add header and distinguish, so the DCI format 2/DCI format 1D (as a kind of blind check form) after DCI format 1 and the reduction goes into to elect as the element in the set.
Method by present embodiment, choose transmission again after the DCI form that can be configured on the downstream units carrier wave limited, can effectively reduce the DCI blind Detecting number of times on the unit carrier wave, but and flexible adaptation different application scene, separate or corresponding as the data channel of control channel and its scheduling, the downstream units carrier wave is scenes such as main carrier or general carrier wave.
Embodiment three
Present embodiment also provides a kind of base station, below in conjunction with accompanying drawing present embodiment is elaborated.With reference to Fig. 4, the base station of present embodiment mainly comprises:
First determining unit 41, the quantity of the DCI form that is used for determining that downstream units carrier wave subscriber equipment particular search space can be configured;
Sequencing unit 42 is used for respectively the DCI form of the transmission mode support of every kind of current configuration is carried out prioritization, obtains the prioritization result of the DCI form that the transmission mode of every kind of current configuration supports;
Second determining unit 43, the prioritization result who is used for the DCI form supported according to the transmission mode of the quantity of the DCI form that can be configured in the described downstream units carrier wave subscriber equipment particular search space and described every kind of current configuration determines the set of the DCI form that can be configured in the subscriber equipment particular search space in the described downstream units carrier wave;
First transmitting element 44 is used for utilizing the DCI form of described set that DCI is sent to subscriber equipment.
According to a better embodiment of present embodiment, first determining unit 41 can comprise:
Wherein, if the maximum blind Detecting ability of downstream units carrier wave support is fixed, then can directly obtain by first determination module 411; If the maximum blind Detecting ability of downstream units carrier wave support is configurable, then this first determination module 411 can comprise:
First determines submodule 4111, is used for determining the maximum blind Detecting ability that described downstream units carrier wave is supported according to the maximum blind Detecting ability of subscriber equipment support and the maximum polymerizable downstream units carrier wave number of current configuration; Perhaps
Second determines submodule 4112, is used for determining the maximum blind Detecting ability that described downstream units carrier wave is supported according to the maximum polymerizable downstream units carrier wave number and the current type of described downstream units carrier wave of the maximum blind Detecting ability of subscriber equipment support, current configuration.
According to a better embodiment of present embodiment, sequencing unit 42 can comprise:
And/or
According to another better embodiment of present embodiment, sequencing unit 42 can comprise:
And/or
According to another better embodiment of present embodiment, sequencing unit 42 can comprise:
The 3rd order module 423, be used for the reporting information that sends according to the subscriber equipment that receives and with the priority arrangement rule that subscriber equipment is consulted in advance, respectively the DCI form under the transmission mode of every kind of current configuration is carried out prioritization.
Wherein, if this sequencing unit 42 comprises first order module 421, then this base station also comprises:
Second transmitting element 45, be used for when first order module 421 is carried out prioritization according to the DCI format preference level ordering rule of setting to the DCI form of the transmission mode support of every kind of current configuration, send conceal signaling or show signaling to subscriber equipment, the prioritization of the DCI form of supporting by the transmission mode of described conceal signaling or every kind of current configuration of demonstration signaling subscriber equipment.
According to a better embodiment of present embodiment, second determining unit 43 can comprise:
First chooses module 431, and the prioritization result of DCI form who is used for the transmission mode support of every kind of current configuration obtaining from sequencing unit 42 chooses the highest DCI form of priority as the element the described set;
Second chooses module 434, be used in the judged result of judge module 432 be, when the quantity of choosing the selected DCI form of module 431 surpasses the quantity of the DCI form that downstream units carrier waves that first determining unit 41 determines can be configured, the prioritization result of the DCI form that the every kind of transmission mode that obtains from sequencing unit 42 is supported, the DCI form of choosing time priority is as the element in the described set, the quantity of element reaches the quantity of the DCI form that described downstream units carrier wave can be configured in described set, or all DCI forms that participate in ordering are all chosen.
In the present embodiment, second determining unit 43 can also comprise:
Wherein, this reduction module 433 can comprise:
The first reduction submodule 4331 is used for the mode of the DCI form supported by the transmission mode that disposes on the exclusive segment downstream units carrier wave, and DCI the form up and/or support of downlink transfer pattern reduces in the transmission mode to current configuration respectively; Perhaps
The second reduction submodule 4332, be used for DCI form in described participation reduction, minimum and/or the inferior little DCI form of load is added 0, make the load size of the DCI form of the described participation reduction of all or part, add header then and distinguish form, DCI the form up and/or support of downlink transfer pattern reduces in the transmission mode to current configuration respectively.
Each part of the base station of present embodiment is respectively applied for each step of the method that realizes previous embodiment, owing in method embodiment, each step is had been described in detail, so do not repeat them here.
By the base station of present embodiment, choose transmission again after the DCI form that can be configured on the downstream units carrier wave limited, can effectively reduce the blind Detecting number of times of the DCI form of subscriber equipment, and flexible adaptation different application scene.
Embodiment four
The embodiment of the invention also provides a kind of method of blind Detecting DCI form, is applied to subscriber equipment, below in conjunction with accompanying drawing present embodiment is elaborated.
Fig. 5 is the method flow diagram of present embodiment, please refer to Fig. 5, and the method for the blind Detecting DCI form of present embodiment mainly comprises the following steps:
501: the quantity of determining the DCI form that can be configured in the subscriber equipment particular search space in the downstream units carrier wave;
Wherein, in the step 501 of present embodiment, determine the quantity of the DCI form that can be configured in the subscriber equipment particular search space in the downstream units carrier wave, can adopt with embodiment two in the identical mode of step 101, comprise the steps:
501 ': determine the maximum blind Detecting ability that the downstream units carrier wave is supported;
502 ': physical layer descending control channel PDCCH number to be detected in maximum blind Detecting ability of supporting according to described downstream units carrier wave and the subscriber equipment particular search space, determine the quantity of the DCI form that can be configured in the subscriber equipment particular search space in the described downstream units carrier wave.
Wherein, step 501 ' can directly obtain, also can determine the maximum blind Detecting ability that described downstream units carrier wave is supported according to the maximum blind Detecting ability of subscriber equipment support and the maximum polymerizable downstream units carrier wave number of obtaining from the base station; Can also be according to the maximum blind Detecting ability of subscriber equipment support, the maximum polymerizable downstream units carrier wave number of obtaining from the base station, and the current type of obtaining from the base station of described downstream units carrier wave, determine the maximum blind Detecting ability that described downstream units carrier wave is supported.
502: the priority of determining the DCI form that every kind of transmission mode of the current configuration in base station is supported;
Wherein, in the step 502 of present embodiment, determine the priority of the DCI form that every kind of transmission mode of the current configuration in base station is supported, can be undertaken, comprising by the mode of following any one or combination in any:
1, determine the prioritization result of the DCI form that every kind of transmission mode of the current configuration in base station is supported according to the demonstration signaling that receives from the base station or conceal signaling;
2, priority arrangement rule according to the DCI form of consulting in advance with the base station, DCI form under every kind of transmission mode of the current configuration in base station is carried out prioritization, determine the prioritization result of the DCI form that every kind of transmission mode of the current configuration in base station is supported;
3, according to the priority arrangement rule of wanting reporting information and consulting in advance with the base station, DCI form under every kind of transmission mode of the current configuration in base station is carried out prioritization, determine the prioritization result of the DCI form that every kind of transmission mode of the current configuration in base station is supported.
503: the priority of the DCI form of supporting according to the transmission mode of the quantity of the DCI form that can be configured in the subscriber equipment particular search space in the described downstream units carrier wave and described every kind of current configuration, determine the set of the DCI form that can be configured in the subscriber equipment particular search space in the described downstream units carrier wave;
Wherein, in the step 503 of present embodiment, determine the set of the DCI form that can be configured in the subscriber equipment particular search space in the described downstream units carrier wave, can adopt with embodiment two in the identical mode of step 103, comprise the following steps:
From the prioritization result of the DCI form of every kind of transmission mode support of the current configuration in described base station, choose the highest DCI form of priority as the element in the described set;
If the quantity of selected DCI form surpasses the quantity of the DCI form that described downstream units carrier wave can be configured, then the prioritization result of the DCI form of supporting from the transmission mode of described every kind of current configuration, the DCI form of choosing time priority is as the element in the described set, the quantity of element reaches the quantity of the DCI form that described downstream units carrier wave can be configured in described set, or all DCI forms that participate in ordering are all chosen;
If the quantity of selected DCI form surpasses the quantity of the DCI form that described downstream units carrier wave can be configured, then respectively the DCI form of uplink transmission mode in the transmission mode of described current configuration and/or the support of downlink transfer pattern is reduced, with the DCI form after the reduction as the element in the described set.
Wherein, the DCI form of uplink transmission mode in the transmission mode of described current configuration and/or the support of downlink transfer pattern is reduced, can finish, comprising by following any one mode:
1, the DCI form that the transmission mode that disposes on the exclusive segment unit carrier wave is supported;
2, in the DCI form of described participation reduction, the minimum and/or inferior little DCI form of load is added 0, make the load size of DCI form of the described participation reduction of all or part the same, add header then and distinguish form.
504: the DCI form in the described set is carried out blind Detecting.
Wherein, step 504 is according to the DCI form in the definite set of step 503, can carry out blind Detecting to the DCI form in this set, owing to pre-determined the set that to carry out the DCI form of blind Detecting, therefore, needn't carry out blind Detecting to all DCI forms, effectively reduce the quantity of blind Detecting.
Wherein, the mode of blind Detecting is a prior art, does not repeat them here.
In the present embodiment, most of step and principle all are corresponding to previous embodiment two, owing to each step has been carried out careful explanation in previous embodiment two, do not repeat them here.
The method of the blind Detecting DCI form that provides by present embodiment, subscriber equipment only needs the DCI form in the definite set well of blind Detecting on the unit carrier wave, can effectively reduce the DCI blind Detecting number of times on the unit carrier wave, but and flexible adaptation different application scene, separate or corresponding as the data channel of control channel and its scheduling, the unit carrier wave is scenes such as main carrier or general carrier wave.
Embodiment five
Present embodiment also provides a kind of subscriber equipment, below in conjunction with accompanying drawing present embodiment is elaborated.With reference to Fig. 6, the subscriber equipment of present embodiment comprises:
First determining unit 61 is used for determining the quantity of the DCI form that can be configured in the downstream units carrier wave subscriber equipment particular search space;
Second determining unit 62 is used for determining the priority of the DCI form that every kind of transmission mode of the current configuration in base station is supported;
The 3rd determining unit 63, the quantity of the DCI form that can be configured in the downstream units carrier wave subscriber equipment particular search space that is used for determining according to described first determining unit, the priority of the DCI form that every kind of transmission mode of the current configuration of determining with described second determining unit in base station is supported is determined the set of the DCI form that can be configured in the subscriber equipment particular search space in the described downstream units carrier wave;
Detecting unit 64 is used for the DCI form of the definite set of described the 3rd determining unit is carried out blind Detecting.
According to an embodiment of the present embodiment, first determining unit 61 can comprise:
Wherein, first determination module 611 can also comprise:
First determines submodule 6111, is used for according to the maximum blind Detecting ability of this subscriber equipment support and the maximum polymerizable downstream units carrier wave number of obtaining from the base station, determines the maximum blind Detecting ability that described downstream units carrier wave is supported; Perhaps
Second determines submodule 6112, be used for the maximum blind Detecting ability according to the support of this subscriber equipment, the maximum polymerizable downstream units carrier wave number of obtaining from the base station, and the current type of obtaining from the base station of described downstream units carrier wave is determined the maximum blind Detecting ability that described downstream units carrier wave is supported.
According to an embodiment of the present embodiment, second determining unit 62 can comprise:
The 3rd determination module 621 is used for the priority of the DCI form supported according to the transmission mode that the demonstration signaling that receives from the base station or conceal signaling are determined the current configuration in base station; And/or
According to an embodiment of the present embodiment, the 3rd determining unit 63 can comprise:
First chooses module 631, is used for the prioritization result of the DCI form that every kind of transmission mode of the current configuration in described base station determined from described second determining unit 62 supports, chooses the highest DCI form of priority as the element in the described set;
Second chooses module 634, be used in the judged result of judge module 632 be, when the described quantity of choosing the selected DCI form of module 631 surpasses the quantity of the DCI form that downstream units carrier waves that described first determining unit 61 determines can be configured, the prioritization result of the DCI form that every kind of transmission mode of the current configuration of determining from described second determining unit 62 in base station is supported, the DCI form of choosing time priority is as the element in the described set, the quantity of element reaches the quantity of the DCI form that described downstream units carrier wave can be configured in described set, or all DCI forms that participate in ordering are all chosen.
In the present embodiment, the 3rd determining unit 63 can also comprise:
In the present embodiment, this reduction module 633 can comprise:
The first reduction submodule 6331, the mode that is used for the DCI form supported by the transmission mode that disposes on the exclusive segment unit carrier wave is reduced the DCI form of the limit priority of uplink transmission mode in the transmission mode of described current configuration and/or the support of downlink transfer pattern; Perhaps
The second reduction submodule 6332, be used for DCI form in described participation reduction, minimum and/or the inferior little DCI form of load is added 0, make the load size of the DCI form of the described participation reduction of all or part, add header then and distinguish form, the DCI form of the limit priority of uplink transmission mode in the transmission mode of described current configuration and/or the support of downlink transfer pattern is reduced.
The subscriber equipment of present embodiment is used to realize the method for previous embodiment four, owing to each step is had been described in detail in method embodiment four and method embodiment two, does not repeat them here.
The subscriber equipment that provides by present embodiment, on the unit carrier wave, only need the DCI form in the definite set well of blind Detecting, can effectively reduce the DCI blind Detecting number of times on the unit carrier wave, but and flexible adaptation different application scene, separate or corresponding as the data channel of control channel and its scheduling, the unit carrier wave is scenes such as main carrier or general carrier wave.
The method of describing in conjunction with embodiment disclosed herein or the step of algorithm can directly use the software module of hardware, processor execution, and perhaps the combination of the two is implemented.Software module can place the storage medium of any other form known in random asccess memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or the technical field.
Above-described embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is the specific embodiment of the present invention; and be not intended to limit the scope of the invention; within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (20)
1. Downlink Control Information DCI sending method is characterized in that this method comprises:
The quantity of the DCI form that can be configured in the subscriber equipment particular search space in the downstream units carrier wave of the subscriber equipment of definite configuration;
DCI form to the transmission mode support of every kind of current configuration carries out prioritization respectively, obtains the prioritization result of the DCI form that the transmission mode of every kind of current configuration supports;
The prioritization result of the DCI form of supporting according to the transmission mode of the quantity of the DCI form that can be configured in the subscriber equipment particular search space in the downstream units carrier wave of the subscriber equipment of described configuration and described every kind of current configuration determines the set of the DCI form that can be configured in the subscriber equipment particular search space in the described downstream units carrier wave;
Adopt the DCI form in the described set that DCI is sent to described subscriber equipment.
2. method according to claim 1 is characterized in that, the quantity of the DCI form that can be configured in the subscriber equipment particular search space in the downstream units carrier wave of the subscriber equipment of described definite configuration comprises:
Determine the maximum blind Detecting ability that the downstream units carrier wave is supported;
Physical layer descending control channel PDCCH number to be detected in maximum blind Detecting ability of supporting according to described downstream units carrier wave and the subscriber equipment particular search space is determined the quantity of the DCI form that can be configured in the subscriber equipment particular search space in the described downstream units carrier wave.
3. method according to claim 2 is characterized in that, the maximum blind Detecting ability that described definite downstream units carrier wave is supported comprises:
According to the maximum blind Detecting ability of described subscriber equipment support and the maximum polymerizable downstream units carrier wave number of current configuration, determine the maximum blind Detecting ability that described downstream units carrier wave is supported; Perhaps
According to the maximum blind Detecting ability of described subscriber equipment support, the maximum polymerizable downstream units carrier wave number of current configuration, and the current type of described downstream units carrier wave is determined the maximum blind Detecting ability that described downstream units carrier wave is supported.
4. method according to claim 1 is characterized in that,
Describedly respectively the DCI form of the transmission mode support of every kind of current configuration is carried out prioritization, comprises one of following or its combination in any:
Respectively the DCI form of the transmission mode support of every kind of current configuration is carried out prioritization according to the DCI format preference level ordering rule of setting;
According to the priority arrangement rule of the DCI form of consulting in advance with described subscriber equipment, respectively the DCI form under the transmission mode of every kind of current configuration is carried out prioritization;
Receive the reporting information that described subscriber equipment sends,, respectively the DCI form under the transmission mode of every kind of current configuration is carried out prioritization according to the described reporting information and the priority arrangement rule of consulting in advance with described subscriber equipment;
And,
Carrying out prioritization at the DCI form of described transmission mode support to every kind of current configuration comprises, when respectively the DCI form of the transmission mode support of every kind of current configuration being carried out prioritization according to the DCI format preference level ordering rule of setting, after carrying out prioritization, described method further comprises:
Send conceal signaling or show signaling to described subscriber equipment, by described conceal signaling or show the prioritization of the DCI form that the transmission mode of every kind of current configuration of the described subscriber equipment of signaling is supported.
5. method according to claim 1 is characterized in that, determines the set of the DCI form that can be configured in the subscriber equipment particular search space in the described downstream units carrier wave, comprising:
From the prioritization result of the DCI form of the transmission mode support of described every kind of current configuration, choose the highest DCI form of priority respectively as the element in the described set;
If the quantity of selected DCI form surpasses the quantity of the DCI form that described downstream units carrier wave can be configured, then the prioritization result of the DCI form of supporting from the transmission mode of described every kind of current configuration, the DCI form of choosing time priority respectively is as the element in the described set, the quantity of element reaches the quantity of the DCI form that described downstream units carrier wave can be configured in described set, or all DCI forms that participate in ordering are all chosen.
6. method according to claim 5 is characterized in that: described method further comprises:
If the quantity of selected DCI form surpasses the quantity of the DCI form that described downstream units carrier wave can be configured, then respectively the DCI form of uplink transmission mode in the transmission mode of described current configuration and/or the support of downlink transfer pattern is reduced, with the DCI form after the reduction as the element in the described set.
7. method according to claim 6 is characterized in that, describedly respectively the DCI form of uplink transmission mode in the transmission mode of described current configuration and/or the support of downlink transfer pattern is reduced, and comprising:
The DCI form that the transmission mode that disposes on the exclusive segment unit carrier wave is supported; Perhaps
In the DCI form of described participation reduction, the minimum and/or inferior little DCI form of load is added 0, make the load size of DCI form of the described participation reduction of all or part the same, add header then and distinguish form.
8. a base station is characterized in that, described base station comprises:
First determining unit is used for determining the quantity of the DCI form that the downstream units carrier wave subscriber equipment particular search space of the subscriber equipment of configuration can be configured;
Sequencing unit is used for respectively the DCI form of the transmission mode support of every kind of current configuration is carried out prioritization, obtains the prioritization result of the DCI form that the transmission mode of every kind of current configuration supports;
Second determining unit, the prioritization result who is used for the DCI form that the transmission mode of the quantity of the DCI form that can be configured in the downstream units carrier wave subscriber equipment particular search space according to the subscriber equipment of described configuration and described every kind of current configuration supports determines the set of the DCI form that can be configured in the subscriber equipment particular search space in the described downstream units carrier wave;
First transmitting element is used for utilizing the DCI form of described set that DCI is sent to subscriber equipment.
9. base station according to claim 8 is characterized in that, described first determining unit comprises:
First determination module is used for the maximum blind Detecting ability of determining that described downstream units carrier wave is supported;
Second determination module, be used for physical layer descending control channel PDCCH number to be detected in the maximum blind Detecting ability supported according to described downstream units carrier wave and the subscriber equipment particular search space, determine the quantity of the DCI form that can be configured in the subscriber equipment particular search space in the described downstream units carrier wave.
10. base station according to claim 9 is characterized in that, described first determination module comprises:
First determines submodule, is used for determining the maximum blind Detecting ability that described downstream units carrier wave is supported according to the maximum blind Detecting ability of described subscriber equipment support and the maximum polymerizable downstream units carrier wave number of current configuration; Perhaps
Second determines submodule, is used for determining the maximum blind Detecting ability that described downstream units carrier wave is supported according to the maximum polymerizable downstream units carrier wave number and the current type of described downstream units carrier wave of the maximum blind Detecting ability of described subscriber equipment support, current configuration.
11. base station according to claim 8 is characterized in that,
Described sequencing unit comprises with one of lower module or its combination in any:
First order module is used for respectively the DCI form of the transmission mode support of every kind of current configuration being carried out prioritization according to the DCI format preference level ordering rule of setting;
Second order module is used for the priority arrangement rule according to the DCI form of consulting in advance with described subscriber equipment, respectively the DCI form under the transmission mode of every kind of current configuration is carried out prioritization;
The 3rd order module, be used for the reporting information that sends according to the described subscriber equipment that receives and with the priority arrangement rule that described subscriber equipment is consulted in advance, respectively the DCI form under the transmission mode of every kind of current configuration is carried out prioritization;
And,
When described sequencing unit comprised described first order module, described base station further comprised:
Second transmitting element is used for sending conceal signaling or showing signaling to described subscriber equipment, described conceal signaling or show that signaling is used to notify the prioritization of the DCI form that the transmission mode of every kind of current configuration of described subscriber equipment supports.
12. base station according to claim 8 is characterized in that, described second determining unit comprises:
First chooses module, and the prioritization result of DCI form who is used for the transmission mode support of every kind of current configuration obtaining from described sequencing unit chooses the highest DCI form of priority as the element the described set;
Judge module is used to judge whether the described quantity of choosing the selected DCI form of module surpasses the quantity of the DCI form that downstream units carrier wave that described first determining unit determines can be configured;
Second chooses module, be used in the judged result of described judge module be, when described first quantity of choosing the selected DCI form of module surpasses the quantity of the DCI form that downstream units carrier wave that described first determining unit determines can be configured, the prioritization result of the DCI form that the every kind of transmission mode that obtains from described sequencing unit is supported, the DCI form of choosing time priority is as the element in the described set, the quantity of element reaches the quantity of the DCI form that described downstream units carrier wave can be configured in described set, or all DCI forms that participate in ordering are all chosen.
13. base station according to claim 12 is characterized in that, described second determining unit also comprises:
The reduction module, when being used for the result that judges at described judge module and surpassing the quantity of the DCI form that downstream units carrier wave that described first determining unit determines can be configured for the described quantity of choosing the selected DCI form of module, respectively the DCI the form up and/or support of downlink transfer pattern in the transmission mode of described current configuration is reduced, with the reduction after the DCI form as the element in the described set.
14. base station according to claim 13 is characterized in that, described reduction module comprises:
The first reduction submodule is used for the mode of the DCI form supported by the transmission mode that disposes on the exclusive segment downstream units carrier wave, respectively the DCI the form up and/or support of downlink transfer pattern in the transmission mode of described current configuration is reduced; Perhaps
The second reduction submodule, be used for DCI form in described participation reduction, minimum and/or the inferior little DCI form of load is added 0, make the load size of the DCI form of the described participation reduction of all or part, add header then and distinguish form, respectively the DCI the form up and/or support of downlink transfer pattern in the transmission mode of described current configuration is reduced.
15. the method for a blind Detecting DCI form is characterized in that, described method comprises:
Determine the quantity of the DCI form that can be configured in the subscriber equipment particular search space in the downstream units carrier wave;
Determine the priority of the DCI form that every kind of transmission mode of the current configuration in base station is supported;
The priority of the DCI form of supporting according to the transmission mode of the quantity of the DCI form that can be configured in the subscriber equipment particular search space in the described downstream units carrier wave and described every kind of current configuration is determined the set of the DCI form that can be configured in the subscriber equipment particular search space in the described downstream units carrier wave;
DCI form in the described set is carried out blind Detecting.
16. method according to claim 15 is characterized in that,
Determine the priority of the DCI form that every kind of transmission mode of the current configuration in base station is supported, comprise one of following or its combination in any:
Determine the prioritization result of the DCI form that the transmission mode of the current configuration in base station is supported according to the demonstration signaling that receives from the base station or conceal signaling;
According to the priority arrangement rule of the DCI form of consulting in advance with the base station, the DCI form under every kind of transmission mode of the current configuration in base station is carried out prioritization, determine the prioritization result of the DCI form that every kind of transmission mode of the current configuration in base station is supported;
According to the priority arrangement rule of wanting reporting information and consulting in advance with the base station, to the DCI form under every kind of transmission mode of the current configuration in base station is carried out prioritization, determine the prioritization result of the DCI form that every kind of transmission mode of the current configuration in base station is supported.
17. method according to claim 15 is characterized in that, determines the set of the DCI form that can be configured in the subscriber equipment particular search space in the described downstream units carrier wave, comprising:
From the prioritization result of the DCI form of every kind of transmission mode support of the current configuration in described base station, choose the highest DCI form of priority as the element in the described set;
If the quantity of selected DCI form surpasses the quantity of the DCI form that described downstream units carrier wave can be configured, then the prioritization result of the DCI form of supporting from the transmission mode of described every kind of current configuration, the DCI form of choosing time priority is as the element in the described set, the quantity of element reaches the quantity of the DCI form that described downstream units carrier wave can be configured in described set, or all DCI forms that participate in ordering are all chosen;
If the quantity of selected DCI form surpasses the quantity of the DCI form that described downstream units carrier wave can be configured, then respectively the DCI form of uplink transmission mode in the transmission mode of described current configuration and/or the support of downlink transfer pattern is reduced, with the DCI form after the reduction as the element in the described set.
18. a subscriber equipment is characterized in that, described subscriber equipment comprises:
First determining unit is used for determining the quantity of the DCI form that can be configured in the downstream units carrier wave subscriber equipment particular search space;
Second determining unit is used for determining the priority of the DCI form that every kind of transmission mode of the current configuration in base station is supported;
The 3rd determining unit, the quantity of the DCI form that can be configured in the downstream units carrier wave subscriber equipment particular search space that is used for determining according to described first determining unit, the priority of the DCI form that every kind of transmission mode of the current configuration of determining with described second determining unit in base station is supported is determined the set of the DCI form that can be configured in the subscriber equipment particular search space in the described downstream units carrier wave;
Detecting unit is used for the DCI form of the definite set of described the 3rd determining unit is carried out blind Detecting.
19. subscriber equipment according to claim 18 is characterized in that,
Described second determining unit comprises with one of lower module or its combination in any:
The 3rd determination module is used for the priority of the DCI form supported according to the transmission mode that the demonstration signaling that receives from the base station or conceal signaling are determined the current configuration in base station;
First order module, be used for priority arrangement rule according to the DCI form of consulting in advance with the base station, DCI form under every kind of transmission mode of the current configuration in base station is carried out prioritization, determine the priority of the DCI form that every kind of transmission mode of the current configuration in base station is supported;
Second order module, be used for according to the priority arrangement rule of wanting reporting information and consulting in advance with the base station, DCI form under every kind of transmission mode of the current configuration in base station is carried out prioritization, determine the priority of the DCI form that every kind of transmission mode of the current configuration in base station is supported.
20. subscriber equipment according to claim 18 is characterized in that, described the 3rd determining unit comprises:
First chooses module, is used for the prioritization result of the DCI form that every kind of transmission mode of the current configuration in described base station determined from described second determining unit supports, chooses the highest DCI form of priority as the element in the described set;
Judge module is used to judge whether the described quantity of choosing the selected DCI form of module surpasses the quantity of the DCI form that downstream units carrier wave that described first determining unit determines can be configured;
Second chooses module, when being used for judged result at described judge module and being the described quantity of choosing the selected DCI form of module and surpassing the quantity of the DCI form that downstream units carrier wave that described first determining unit determines can be configured, the prioritization result of the DCI form that every kind of transmission mode of the current configuration of determining from described second determining unit in base station is supported, the DCI form of choosing time priority is as the element in the described set, the quantity of element reaches the quantity of the DCI form that described downstream units carrier wave can be configured in described set, or all DCI forms that participate in ordering are all chosen;
The reduction module, when being used for judged result at described judge module and being the described quantity of choosing the selected DCI form of module and surpassing the quantity of the DCI form that downstream units carrier wave that described first determining unit determines can be configured, DCI form to uplink transmission mode in the transmission mode of described current configuration and/or the support of downlink transfer pattern reduces respectively, with the reduction after the DCI form as the element in the described set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101397120A CN101932024A (en) | 2009-06-24 | 2009-06-24 | Downlink control information transmitting method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101397120A CN101932024A (en) | 2009-06-24 | 2009-06-24 | Downlink control information transmitting method and device |
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| CN101932024A true CN101932024A (en) | 2010-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101397120A Pending CN101932024A (en) | 2009-06-24 | 2009-06-24 | Downlink control information transmitting method and device |
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| CN (1) | CN101932024A (en) |
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2009
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Application publication date: 20101229 |