CN103491516A - Control signal transmission method and base station - Google Patents
Control signal transmission method and base station Download PDFInfo
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- CN103491516A CN103491516A CN201310452558.9A CN201310452558A CN103491516A CN 103491516 A CN103491516 A CN 103491516A CN 201310452558 A CN201310452558 A CN 201310452558A CN 103491516 A CN103491516 A CN 103491516A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
- H04L5/1469—Two-way operation using the same type of signal, i.e. duplex using time-sharing
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Abstract
The invention provides a control signal transmission method. The control signal transmission method comprises the steps that a base station generates public control signals which comprise uplink and downlink configuration information, and the public control signals are put in a public searching space; the public control signals are sent. The invention further provides a base station. By means of the technical scheme, terminals in a cell can be made to obtain the uplink and downlink configuration information from the public searching space directly, the uplink and downlink configuration information dose not need to be sent to the terminals respectively, and the control signal transmission method and the base station are beneficial to reducing the number of sending times of the signals and the using of control channels.
Description
Technical field
The present invention relates to wireless communication technology field, in particular to a kind of transmission method and a kind of base station of control signal.
Background technology
In order to solve TDD(Time Division Duplex, time division duplex) the asymmetric problem of up-downgoing business in system, designed altogether 7 kinds of DL-UL(descending-up in 3GPP Rel-8) the sub-frame configuration mode, as shown in Figure 1, be respectively Configuration(configuration) 0 to configuration 6, and different DL, UL number of sub-frames are arranged in different configurations, the special subframe 102, the sub-frame of uplink 104 that comprise are different with the quantity of descending sub frame 106, with the different business demand of reply TDD-LTE system.
Studies show that in correlation technique changes fast uplink-downlink configuration according to the customer service demand in same geographic area, can bring larger throughput gain.Due to Microcell apart from each other usually, the natural effect with interference and insulation, therefore this gain is more obvious in Microcell.But, in the design of Rel-8, every 320ms is the chance of Reconfigurations for once, and operator disturbs for the intersection that reduces adjacent cell, usually adopts identical uplink-downlink configuration in a zone, and this obviously can't meet in actual use the demand to throughput.
Therefore, how to realize the reasonable transmission to uplink-downlink configuration information, make each community to configure applicable DL-UL transmission configuration according to own current traffic carrying capacity easily, and, without more control channel expense, become technical problem urgently to be resolved hurrily at present.
Summary of the invention
The present invention just is being based on the problems referred to above, proposed a kind of new technical scheme, can make the terminal in community all directly from public search space, obtain uplink-downlink configuration information, and without sending separately to each terminal respectively, contribute to reduce the signaling transmission times, reduce the expense of control channel.
In view of this, the present invention proposes a kind of transmission method of control signal, comprising: base station generates the common control channel order, in described common control channel order, comprises uplink-downlink configuration information, and described common control channel order is placed in to public search space; Send described common control channel order.
In this technical scheme, control signal is often at the PDCCH(Physical Downlink Control Channel) or the Physical Downlink Control Channel that strengthens of E-PDCCH() in transmit, and, in order to coordinate blind check to measure mode, be divided into again public search space and dedicated search space.Wherein, by the common control channel order is placed in to public search space, make the part terminal of whole or appointment can therefrom obtain uplink-downlink configuration information, without sending one by one, contribute to reduce Signalling exchange, reduce the expense of control channel.
In technique scheme, preferably, it is 3 or the Downlink Control Information of 3A that the uplink-downlink configuration information in the order of described common control channel is arranged in sequence number.
In this technical scheme, sequence number is 3 or Downlink Control Information (the DCI of 3A, Downlink Control Information) for transmitting TPC(Transmission Power Control, through-put power is controlled) power contorl parameters, but so much terminal is worked and required power is controlled owing to usually not having in community simultaneously, thus sequence number be 3 or the Downlink Control Information of 3A in often have some idle bits.By uplink-downlink configuration information being added into to above-mentioned idle bit position, make the transmission times that has reduced signaling, with less message structure, improve, realized the transmission to uplink-downlink configuration information.
In above-mentioned arbitrary technical scheme, preferably, also comprise: different Radio Network Temporary Identifier (RNTI) is used respectively in described base station, and other information in described uplink-downlink configuration information and the order of described common control channel are carried out to scrambling.
In this technical scheme, terminal need to, by the mode of blind Detecting, determine whether the current data that receive are self actual required information.Specifically such as: by the information to different, corresponding Radio Network Temporary Identifier (as RNTI) is set, and use this RNTI to carry out scrambling to corresponding information, if terminal can be used identical RNTI to carry out descrambling to the data that receive, illustrate that these data are the required information of terminal.Therefore, the RNTI that RNTI that need to uplink-downlink configuration information is corresponding is corresponding with other information in signaling makes a distinction, so that terminal can know current whether what receive be uplink-downlink configuration information exactly.Particularly, RNTI corresponding to uplink-downlink configuration information can be the RNTI of brand-new design, can be also existing RNTI, but can distinguish by the RNTI corresponding with other information in same signaling.
In above-mentioned arbitrary technical scheme, preferably, also comprise: the service terminal of described base station is divided into to a plurality of user's groups; Wherein, include the uplink-downlink configuration information that corresponds respectively to each user's group in described common control channel order.
In this technical scheme, the service terminal of base station refers to that base station provides service, the mutual terminal of executing data for it, by service terminal is divided into groups, and, for each user organizes independent distribution uplink-downlink configuration information, make in same community the different uplink-downlink configuration information that also can adopt.Wherein, can be set to user's group by service terminal corresponding to each Microcell,, due to Microcell apart from each other usually, there is interference and insulation effect preferably, and can bring larger throughput gain.
In above-mentioned arbitrary technical scheme, preferably, also comprise: use the subframe that sequence number is 0,1,5 and/or 6 to send described common control channel order.
In this technical scheme, in 7 kinds of uplink-downlink configuration information of definition at present, the subframe that sequence number is 0,1,5 and 6 is descending sub frame, and (sequence number 1 is special subframe, wherein there is DwPTS to be fixed as descending, can be regarded as descending sub frame), thereby on these subframes, the transmission common control channel while making, can access more stable laser propagation effect relatively, helps avoid the generation of interference.Wherein, " subframe that sequence number is 0,1,5 and/or 6 " means optional one, two, three or whole subframe from 0,1,5,6, to make for sending common control channel.
In above-mentioned arbitrary technical scheme, preferably, in the service terminal of described base station, exist in discontinuous reception (DRX, Discontinuous Reception) during the terminal of state, described transmission method also comprises: described base station generates dedicated control signaling, comprise described uplink-downlink configuration information in described dedicated control signaling, and described dedicated control signaling is placed in to the described dedicated search space corresponding in the terminal of discontinuous receiving state; Send described dedicated control signaling.
In this technical scheme, while having the terminal of DRX state in community, because it is only revived and receive information in interval at a fixed time, keep resting state in the other times interval, thereby may cause it can't normally receive above-mentioned common control channel order.Do not receive common control channel for fear of the terminal of DRX state and make, miss the configuration to the up-downgoing parameter, and cause transmission chaotic and intersect the situations such as interference, can be for the terminal of DRX state, uplink-downlink configuration information is placed in to corresponding dedicated search space, to guarantee it, can receives uplink-downlink configuration information.Due to the limited amount of the terminal in the DRX state in community, thereby under the cooperation of common control channel order, the effective expense situation of the quantity forwarded of control signal and control channel still.
In above-mentioned arbitrary technical scheme, preferably, the uplink-downlink configuration information in described dedicated control signaling is arranged in paging information or Downlink Control Information corresponding to resource allocation information.
In this technical scheme, due to the terminal that is in the DRX state, the paging information that main monitoring is descending and up resource allocation information, therefore can be by paging information or Downlink Control Information corresponding to resource allocation information, interpolation is corresponding to the uplink-downlink configuration information of the terminal of DRX state, thereby make all terminals in community can both receive the uplink-downlink configuration information corresponding to self, avoid producing data corruption and intersect and disturb.
In above-mentioned arbitrary technical scheme, preferably, while in the service terminal of described base station, having the terminal in discontinuous receiving state, described transmission method also comprises: the generating period configuration signal, described cycle configuration signal comprises the cycle configuration information, described cycle configuration information is configured for the listening period to the terminal in discontinuous receiving state, makes the described terminal in discontinuous receiving state receive described common control channel order at described listening period; Send above-mentioned cycle configuration signal to the described terminal in discontinuous receiving state.
In this technical scheme, the terminal of DRX state can enter normal condition and receive information in the time interval set, thereby the listening period of the terminal by configuration DRX state, it is monitored in the time interval of base station transmission common control channel order, so that all terminals in community can both receive the uplink-downlink configuration information corresponding to self, avoid producing data corruption and intersect and disturb.
The present invention has also correspondingly proposed a kind of base station, comprising: data processing module for generating the common control channel order, comprises uplink-downlink configuration information in described common control channel order, and described common control channel order is placed in to public search space; The data interaction module, for sending described common control channel order.
In this technical scheme, control signal is often at the PDCCH(Physical Downlink Control Channel) or the Physical Downlink Control Channel that strengthens of E-PDCCH() in transmit, and, in order to coordinate blind check to measure mode, be divided into again public search space and dedicated search space.Wherein, by the common control channel order is placed in to public search space, make the part terminal of whole or appointment can therefrom obtain uplink-downlink configuration information, without sending one by one, contribute to reduce Signalling exchange, reduce the expense of control channel.
In technique scheme, preferably, it is 3 or the Downlink Control Information of 3A that the uplink-downlink configuration information in the order of described common control channel is arranged in sequence number.
In this technical scheme, sequence number is 3 or Downlink Control Information (the DCI of 3A, Downlink Control Information) for transmitting TPC(Transmission Power Control, through-put power is controlled) power contorl parameters, but so much terminal is worked and required power is controlled owing to usually not having in community simultaneously, thus sequence number be 3 or the Downlink Control Information of 3A in often have some idle bits.By uplink-downlink configuration information being added into to above-mentioned idle bit position, make the transmission times that has reduced signaling, with less message structure, improve, realized the transmission to uplink-downlink configuration information.
In above-mentioned arbitrary technical scheme, preferably, described data processing module also for: use respectively different RNTI, other information in the order of described uplink-downlink configuration information and described common control channel carried out to scrambling.
In this technical scheme, terminal need to, by the mode of blind Detecting, determine whether the current data that receive are self actual required information.Specifically such as: by the information to different, corresponding Radio Network Temporary Identifier (as RNTI) is set, and use this RNTI to carry out scrambling to corresponding information, if terminal can be used identical RNTI to carry out descrambling to the data that receive, illustrate that these data are the required information of terminal.Therefore, the RNTI that RNTI that need to uplink-downlink configuration information is corresponding is corresponding with other information in signaling makes a distinction, so that terminal can know current whether what receive be uplink-downlink configuration information exactly.Particularly, RNTI corresponding to uplink-downlink configuration information can be the RNTI of brand-new design, can be also existing RNTI, but can distinguish by the RNTI corresponding with other information in same signaling.
In above-mentioned arbitrary technical scheme, preferably, described data processing module also for: the service terminal of described base station is divided into to a plurality of user's groups; Wherein, include the uplink-downlink configuration information that corresponds respectively to each user's group in described common control channel order.
In this technical scheme, the service terminal of base station refers to that base station provides service, the mutual terminal of executing data for it, by service terminal is divided into groups, and, for each user organizes independent distribution uplink-downlink configuration information, make in same community the different uplink-downlink configuration information that also can adopt.Wherein, can be set to user's group by service terminal corresponding to each Microcell,, due to Microcell apart from each other usually, there is interference and insulation effect preferably, and can bring larger throughput gain.
In above-mentioned arbitrary technical scheme, preferably, described data interaction module also for: use the subframe that sequence number is 0,1,5 and/or 6 to send described common control channel order.
In this technical scheme, in 7 kinds of uplink-downlink configuration information of definition at present, the subframe that sequence number is 0,1,5 and 6 is descending sub frame, and (sequence number 1 is special subframe, wherein there is DwPTS to be fixed as descending, can be regarded as descending sub frame), thereby on these subframes, the transmission common control channel while making, can access more stable laser propagation effect relatively, helps avoid the generation of interference.Wherein, " subframe that sequence number is 0,1,5 and/or 6 " means optional one, two, three or whole subframe from 0,1,5,6, to make for sending common control channel.
In above-mentioned arbitrary technical scheme, preferably, while in the service terminal of described base station, having the terminal in discontinuous receiving state, described data processing module also for: generate dedicated control signaling, comprise described uplink-downlink configuration information in described dedicated control signaling, and described dedicated control signaling is placed in to the described dedicated search space corresponding in the terminal of discontinuous receiving state; Described data interaction module also for: send described dedicated control signaling.
In this technical scheme, while having the terminal of DRX state in community, because it is only revived and receive information in interval at a fixed time, keep resting state in the other times interval, thereby may cause it can't normally receive above-mentioned common control channel order.Do not receive common control channel for fear of the terminal of DRX state and make, miss the configuration to the up-downgoing parameter, and cause transmission chaotic and intersect the situations such as interference, can be for the terminal of DRX state, uplink-downlink configuration information is placed in to corresponding dedicated search space, to guarantee it, can receives uplink-downlink configuration information.Due to the limited amount of the terminal in the DRX state in community, thereby under the cooperation of common control channel order, the effective expense situation of the quantity forwarded of control signal and control channel still.
In above-mentioned arbitrary technical scheme, preferably, the uplink-downlink configuration information in described dedicated control signaling is arranged in paging information or Downlink Control Information corresponding to resource allocation information.
In this technical scheme, due to the terminal that is in the DRX state, the paging information that main monitoring is descending and up resource allocation information, therefore can be by paging information or Downlink Control Information corresponding to resource allocation information, interpolation is corresponding to the uplink-downlink configuration information of the terminal of DRX state, thereby make all terminals in community can both receive the uplink-downlink configuration information corresponding to self, avoid producing data corruption and intersect and disturb.
In above-mentioned arbitrary technical scheme, preferably, while in the service terminal of described base station, having the terminal in discontinuous receiving state, described data processing module is also for the generating period configuration signal, described cycle configuration signal comprises the cycle configuration information, described cycle configuration information is configured for the listening period to the terminal in discontinuous receiving state, makes the described terminal in discontinuous receiving state receive described common control channel order at described listening period; Described data interaction module also for: send above-mentioned cycle configuration signal to the described terminal in discontinuous receiving state.
In this technical scheme, the terminal of DRX state can enter normal condition and receive information in the time interval set, thereby the listening period of the terminal by configuration DRX state, it is monitored in the time interval of base station transmission common control channel order, so that all terminals in community can both receive the uplink-downlink configuration information corresponding to self, avoid producing data corruption and intersect and disturb.
By above technical scheme, can make the terminal in community all directly from public search space, obtain uplink-downlink configuration information, and, without sending separately to each terminal respectively, contribute to reduce the signaling transmission times, reduce the expense of control channel.
The accompanying drawing explanation
Fig. 1 shows the structural representation of seven kinds of radio frames in the TDD system defined in correlation technique;
Fig. 2 shows the schematic flow diagram of the transmission method of control signal according to an embodiment of the invention;
Fig. 3 shows the schematic diagram that sends uplink-downlink configuration information to the DRX terminal according to an embodiment of the invention;
Fig. 4 shows the schematic diagram to DRX terminal transmission uplink-downlink configuration information according to another embodiment of the invention;
Fig. 5 shows the schematic block diagram of base station according to an embodiment of the invention.
Embodiment
In order more clearly to understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, in the situation that do not conflict, the application's embodiment and the feature in embodiment can combine mutually.
A lot of details have been set forth in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not subject to the restriction of following public specific embodiment.
The present invention proposes by signalling, realize the technical scheme of the transmission of uplink-downlink configuration information, wherein, for the terminal of different conditions in community, have different processing modes, below will be described in detail respectively.
One, for the terminal of normal condition
Fig. 2 shows the schematic flow diagram of the transmission method of control signal according to an embodiment of the invention.
As shown in Figure 2, the transmission method of control signal according to an embodiment of the invention comprises: base station generates the common control channel order, in described common control channel order, comprises uplink-downlink configuration information, and described common control channel order is placed in to public search space; Send described common control channel order.
In this technical scheme, control signal is often at the PDCCH(Physical Downlink Control Channel) or the Physical Downlink Control Channel that strengthens of E-PDCCH() in transmit, and, in order to coordinate blind check to measure mode, be divided into again public search space and dedicated search space.Wherein, by the common control channel order is placed in to public search space, make the part terminal of whole or appointment can therefrom obtain uplink-downlink configuration information, without sending one by one, contribute to reduce Signalling exchange, reduce the expense of control channel.
For above-mentioned uplink-downlink configuration information, specifically can adopt various ways to be transmitted, such as:
1) above-mentioned uplink-downlink configuration information being placed in to sequence number is 3 or the Downlink Control Information of 3A.
Sequence number is 3 or Downlink Control Information (the DCI of 3A, Downlink Control Information) for transmitting TPC(Transmission Power Control, through-put power is controlled) power contorl parameters, but so much terminal is worked and required power is controlled owing to usually not having in community simultaneously, thus sequence number be 3 or the Downlink Control Information of 3A in often have some idle bits.By uplink-downlink configuration information being added into to above-mentioned idle bit position, make the transmission times that has reduced signaling, with less message structure, improve, realized the transmission to uplink-downlink configuration information.
2) also can use other Downlink Control Information; Or adopt the information of brand-new definition, its concrete structure can be with reference to as DCI Format3/3A(44 bit, above-mentioned sequence number be 3 or the Downlink Control Information of 3A), DCI Format1(55 bit that also can be higher with reference to reliability) etc. other information.
When needs are added in existing information by above-mentioned uplink-downlink configuration information, such as being added in DCI Format3/3A, can use different Radio Network Temporary Identifier (RNTI), described uplink-downlink configuration information and other information are carried out to scrambling.
This scheme relates to the blind detection process of terminal.Because terminal need to be by the mode of blind Detecting, determine whether the current data that receive are self actual required information, specifically such as: by the information to different, corresponding Radio Network Temporary Identifier (as RNTI) is set, and use this RNTI to carry out scrambling to corresponding information, if terminal can be used identical RNTI to carry out descrambling to the data that receive, illustrate that these data are the required information of terminal.Therefore, the RNTI that RNTI that need to uplink-downlink configuration information is corresponding is corresponding with other information in signaling makes a distinction, so that terminal can know current whether what receive be uplink-downlink configuration information exactly.
Certainly, can there be various ways in RNTI corresponding to uplink-downlink configuration information: 1) at present for different control informations, a lot of different RNTI have been provided with, due to as only comprised the part control information in DCI Format3/3A, only make and need to be selected from existing RNTI, and guarantee that the RNTI that the RNTI that chooses is corresponding from the control information as comprised in DCI Format3/3A is different, can guarantee that terminal can effectively distinguish various information; 2) also can design different, brand-new RNTI all from existing all RNTI, with for uplink-downlink configuration information is carried out to scrambling and descrambling.
In above-mentioned arbitrary technical scheme, preferably, also comprise: the service terminal of described base station is divided into to a plurality of user's groups; Wherein, include the uplink-downlink configuration information that corresponds respectively to each user's group in described common control channel order.
In this technical scheme, the service terminal of base station refers to that base station provides service, the mutual terminal of executing data for it, by service terminal is divided into groups, and, for each user organizes independent distribution uplink-downlink configuration information, make in same community the different uplink-downlink configuration information that also can adopt.Wherein, can be set to user's group by service terminal corresponding to each Microcell,, due to Microcell apart from each other usually, there is interference and insulation effect preferably, and can bring larger throughput gain.
In above-mentioned arbitrary technical scheme, preferably, also comprise: use the subframe that sequence number is 0,1,5 and/or 6 to send described common control channel order.
In this technical scheme, in 7 kinds of uplink-downlink configuration information of definition at present, the subframe that sequence number is 0,1,5 and 6 is descending sub frame, and (sequence number 1 is special subframe, wherein there is DwPTS to be fixed as descending, can be regarded as descending sub frame), thereby on these subframes, the transmission common control channel while making, can access more stable laser propagation effect relatively, helps avoid the generation of interference.Wherein, " subframe that sequence number is 0,1,5 and/or 6 " means optional one, two, three or whole subframe from 0,1,5,6, to make for sending common control channel.
Two, for the terminal of DRX state
Fig. 3 shows the schematic diagram that sends uplink-downlink configuration information to the DRX terminal according to an embodiment of the invention.
While having the terminal of DRX state in the ，Dang community as shown in Figure 3, because it is only revived and receive information in interval at a fixed time, keep resting state in the other times interval, thereby may cause it can't normally receive above-mentioned common control channel order.Do not receive common control channel for fear of the terminal of DRX state and make, miss the configuration to the up-downgoing parameter, and cause transmission chaotic and intersect the situations such as interference, can carry out following operation for the terminal of DRX state:
Described base station generates dedicated control signaling, comprises described uplink-downlink configuration information in described dedicated control signaling, and described dedicated control signaling is placed in to the described dedicated search space corresponding in the terminal of discontinuous receiving state; Send described dedicated control signaling.
Therefore, terminal for community in normal condition and the terminal in the DRX state, respectively uplink-downlink configuration information is placed in to public search space and dedicated search space, thereby guarantees that all terminals can both receive the uplink-downlink configuration information corresponding to self.Wherein, due to the limited amount of the terminal in the DRX state in community, thereby under the cooperation of common control channel order, the effective expense situation of the quantity forwarded of control signal and control channel still.
Preferably, the uplink-downlink configuration information in described dedicated control signaling is arranged in paging information or Downlink Control Information corresponding to resource allocation information.
In this technical scheme, due to the terminal that is in the DRX state, the paging information that main monitoring is descending and up resource allocation information, therefore can be by paging information or Downlink Control Information corresponding to resource allocation information, interpolation is corresponding to the uplink-downlink configuration information of the terminal of DRX state, thereby make all terminals in community can both receive the uplink-downlink configuration information corresponding to self, avoid producing data corruption and intersect and disturb.
For the terminal in the DRX state in community, can also adopt other modes, to guarantee that it receives corresponding uplink-downlink configuration information, below in conjunction with Fig. 4, be elaborated, wherein, Fig. 4 shows the schematic diagram to DRX terminal transmission uplink-downlink configuration information according to another embodiment of the invention.
Base station side: base station, in default time interval, is sent uplink-downlink configuration information and other information respectively.
The DRX end side: the DRX terminal is according to the cycle of configuration, checker between normal condition and DRX state.
When the DRX terminal not being carried out to special universal time coordinated, the DRX terminal switches to the time window of normal condition from the DRX state, probably with the time window of base station transmission uplink-downlink configuration information, do not mate, cause terminal to receive and be placed in the uplink-downlink configuration information in public search space.
And by the special coordination to the DRX terminal, make the DRX terminal switch to the time window of normal condition from the DRX state, the time window that sends uplink-downlink configuration information with base station is complementary, just can listen to the uplink-downlink configuration information be placed in public search space, thereby make all terminals in community can both sequentially obtain the uplink-downlink configuration information corresponding to self, avoid producing data corruption and intersect and disturb.
For such scheme, the invention allows for corresponding hardware module or function structure, below in conjunction with Fig. 5, be elaborated, wherein, Fig. 5 shows the schematic block diagram of base station according to an embodiment of the invention.
As shown in Figure 5, base station 500 according to an embodiment of the invention, comprising: data processing module 502 for generating the common control channel order, comprises uplink-downlink configuration information in described common control channel order, and described common control channel order is placed in to public search space; Data interaction module 504, for sending described common control channel order.
In this technical scheme, control signal is often at the PDCCH(Physical Downlink Control Channel) or the Physical Downlink Control Channel that strengthens of E-PDCCH() in transmit, and, in order to coordinate blind check to measure mode, be divided into again public search space and dedicated search space.Wherein, by the common control channel order is placed in to public search space, make the part terminal of whole or appointment can therefrom obtain uplink-downlink configuration information, without sending one by one, contribute to reduce Signalling exchange, reduce the expense of control channel.
In technique scheme, preferably, it is 3 or the Downlink Control Information of 3A that the uplink-downlink configuration information in the order of described common control channel is arranged in sequence number.
In this technical scheme, sequence number is 3 or Downlink Control Information (the DCI of 3A, Downlink Control Information) for transmitting TPC(Transmission Power Control, through-put power is controlled) power contorl parameters, but so much terminal is worked and required power is controlled owing to usually not having in community simultaneously, thus sequence number be 3 or the Downlink Control Information of 3A in often have some idle bits.By uplink-downlink configuration information being added into to above-mentioned idle bit position, make the transmission times that has reduced signaling, with less message structure, improve, realized the transmission to uplink-downlink configuration information.
In above-mentioned arbitrary technical scheme, preferably, described data processing module 502 also for: use respectively different RNTI, other information in the order of described uplink-downlink configuration information and described common control channel carried out to scrambling.
In this technical scheme, terminal need to, by the mode of blind Detecting, determine whether the current data that receive are self actual required information.Specifically such as: by the information to different, corresponding Radio Network Temporary Identifier (as RNTI) is set, and use this RNTI to carry out scrambling to corresponding information, if terminal can be used identical RNTI to carry out descrambling to the data that receive, illustrate that these data are the required information of terminal.Therefore, the RNTI that RNTI that need to uplink-downlink configuration information is corresponding is corresponding with other information in signaling makes a distinction, so that terminal can know current whether what receive be uplink-downlink configuration information exactly.Particularly, RNTI corresponding to uplink-downlink configuration information can be the RNTI of brand-new design, can be also existing RNTI, but can distinguish by the RNTI corresponding with other information in same signaling.
In above-mentioned arbitrary technical scheme, preferably, described data processing module 502 also for: the service terminal of described base station 500 is divided into to a plurality of user's groups; Wherein, include the uplink-downlink configuration information that corresponds respectively to each user's group in described common control channel order.
In this technical scheme, the service terminal of base station 500 refers to that base station 500 provides service, the mutual terminal of executing data for it, by service terminal is divided into groups, and, for each user organizes independent distribution uplink-downlink configuration information, make in same community the different uplink-downlink configuration information that also can adopt.Wherein, can be set to user's group by service terminal corresponding to each Microcell,, due to Microcell apart from each other usually, there is interference and insulation effect preferably, and can bring larger throughput gain.
In above-mentioned arbitrary technical scheme, preferably, described data interaction module 504 also for: use the subframe that sequence number is 0,1,5 and/or 6 to send described common control channel order.
In this technical scheme, in 7 kinds of uplink-downlink configuration information of definition at present, the subframe that sequence number is 0,1,5 and 6 is descending sub frame, and (sequence number 1 is special subframe, wherein there is DwPTS to be fixed as descending, can be regarded as descending sub frame), thereby on these subframes, the transmission common control channel while making, can access more stable laser propagation effect relatively, helps avoid the generation of interference.Wherein, " subframe that sequence number is 0,1,5 and/or 6 " means optional one, two, three or whole subframe from 0,1,5,6, to make for sending common control channel.
In above-mentioned arbitrary technical scheme, preferably, while in the service terminal of described base station 500, having the terminal in discontinuous receiving state, described data processing module 502 also for: generate dedicated control signaling, comprise described uplink-downlink configuration information in described dedicated control signaling, and described dedicated control signaling is placed in to the described dedicated search space corresponding in the terminal of discontinuous receiving state; Described data interaction module 504 also for: send described dedicated control signaling.
In this technical scheme, while having the terminal of DRX state in community, because it is only revived and receive information in interval at a fixed time, keep resting state in the other times interval, thereby may cause it can't normally receive above-mentioned common control channel order.Do not receive common control channel for fear of the terminal of DRX state and make, miss the configuration to the up-downgoing parameter, and cause transmission chaotic and intersect the situations such as interference, can be for the terminal of DRX state, uplink-downlink configuration information is placed in to corresponding dedicated search space, to guarantee it, can receives uplink-downlink configuration information.Due to the limited amount of the terminal in the DRX state in community, thereby under the cooperation of common control channel order, the effective expense situation of the quantity forwarded of control signal and control channel still.
In above-mentioned arbitrary technical scheme, preferably, the uplink-downlink configuration information in described dedicated control signaling is arranged in paging information or Downlink Control Information corresponding to resource allocation information.
In this technical scheme, due to the terminal that is in the DRX state, the paging information that main monitoring is descending and up resource allocation information, therefore can be by paging information or Downlink Control Information corresponding to resource allocation information, interpolation is corresponding to the uplink-downlink configuration information of the terminal of DRX state, thereby make all terminals in community can both receive the uplink-downlink configuration information corresponding to self, avoid producing data corruption and intersect and disturb.
In above-mentioned arbitrary technical scheme, preferably, while in the service terminal of described base station 500, having the terminal in discontinuous receiving state, described data processing module 502 is also for the generating period configuration signal, described cycle configuration signal comprises the cycle configuration information, described cycle configuration information is configured for the listening period to the terminal in discontinuous receiving state, makes the described terminal in discontinuous receiving state receive described common control channel order at described listening period; Described data interaction module 504 also for: send above-mentioned cycle configuration signal to the described terminal in discontinuous receiving state.
In this technical scheme, the terminal of DRX state can enter normal condition and receive information in the time interval set, thereby the listening period of the terminal by configuration DRX state, it is monitored in the time interval of base station 500 transmission common control channel orders, so that all terminals in community can both receive the uplink-downlink configuration information corresponding to self, avoid producing data corruption and intersect and disturb.
More than be described with reference to the accompanying drawings technical scheme of the present invention, the present invention proposes a kind of transmission method and a kind of base station of control signal, can make the terminal in community all directly from public search space, obtain uplink-downlink configuration information, and without sending separately to each terminal respectively, contribute to reduce the signaling transmission times, reduce the expense of control channel.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (16)
1. the transmission method of a control signal, is characterized in that, comprising:
Base station generates the common control channel order, in described common control channel order, comprises uplink-downlink configuration information, and described common control channel order is placed in to public search space;
Send described common control channel order.
2. the transmission method of control signal according to claim 1, is characterized in that, it is 3 or the Downlink Control Information of 3A that the uplink-downlink configuration information in the order of described common control channel is arranged in sequence number.
3. the transmission method of control signal according to claim 2, is characterized in that, also comprises:
Different Radio Network Temporary Identifiers is used respectively in described base station, and other information in described uplink-downlink configuration information and the order of described common control channel are carried out to scrambling.
4. the transmission method of control signal according to claim 1, is characterized in that, also comprises:
The service terminal of described base station is divided into to a plurality of user's groups;
Wherein, include the uplink-downlink configuration information that corresponds respectively to each user's group in described common control channel order.
5. the transmission method of control signal according to claim 1, is characterized in that, also comprises:
Use the subframe that sequence number is 0,1,5 and/or 6 to send described common control channel order.
6. according to the transmission method of the described control signal of any one in claim 1 to 5, it is characterized in that, while in the service terminal of described base station, having the terminal in discontinuous receiving state, described transmission method also comprises:
Described base station generates dedicated control signaling, comprises described uplink-downlink configuration information in described dedicated control signaling, and described dedicated control signaling is placed in to the described dedicated search space corresponding in the terminal of discontinuous receiving state;
Send described dedicated control signaling.
7. the transmission method of control signal according to claim 6, is characterized in that, the uplink-downlink configuration information in described dedicated control signaling is arranged in paging information or Downlink Control Information corresponding to resource allocation information.
8. according to the transmission method of the described control signal of any one in claim 1 to 5, it is characterized in that, while in the service terminal of described base station, having the terminal in discontinuous receiving state, described transmission method also comprises:
The generating period configuration signal, described cycle configuration signal comprises the cycle configuration information, described cycle configuration information is configured for the listening period to the terminal in discontinuous receiving state, makes the described terminal in discontinuous receiving state receive described common control channel order at described listening period;
Send above-mentioned cycle configuration signal to the described terminal in discontinuous receiving state.
9. a base station, is characterized in that, comprising:
Data processing module, for generating the common control channel order, comprise uplink-downlink configuration information in described common control channel order, and described common control channel order be placed in to public search space;
The data interaction module, for sending described common control channel order.
10. base station according to claim 9, is characterized in that, it is 3 or the Downlink Control Information of 3A that the uplink-downlink configuration information in the order of described common control channel is arranged in sequence number.
11. base station according to claim 10, is characterized in that, described data processing module also for:
Use respectively different Radio Network Temporary Identifiers, other information in described uplink-downlink configuration information and the order of described common control channel are carried out to scrambling.
12. base station according to claim 9, is characterized in that, described data processing module also for:
The service terminal of described base station is divided into to a plurality of user's groups;
Wherein, include the uplink-downlink configuration information that corresponds respectively to each user's group in described common control channel order.
13. base station according to claim 9, is characterized in that, described data interaction module also for:
Use the subframe that sequence number is 0,1,5 and/or 6 to send described common control channel order.
14. according to the described base station of any one in claim 9 to 13, it is characterized in that, while in the service terminal of described base station, having the terminal in discontinuous receiving state, described data processing module also for: generate dedicated control signaling, comprise described uplink-downlink configuration information in described dedicated control signaling, and described dedicated control signaling is placed in to the described dedicated search space corresponding in the terminal of discontinuous receiving state;
Described data interaction module also for: send described dedicated control signaling.
15. base station according to claim 14, is characterized in that, the uplink-downlink configuration information in described dedicated control signaling is arranged in paging information or Downlink Control Information corresponding to resource allocation information.
16. according to the described base station of any one in claim 9 to 13, it is characterized in that, while in the service terminal of described base station, having the terminal in discontinuous receiving state, described data processing module is also for the generating period configuration signal, described cycle configuration signal comprises the cycle configuration information, described cycle configuration information is configured for the listening period to the terminal in discontinuous receiving state, makes the described terminal in discontinuous receiving state receive described common control channel order at described listening period;
Described data interaction module also for: send above-mentioned cycle configuration signal to the described terminal in discontinuous receiving state.
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| CN201310452558.9A CN103491516B (en) | 2013-09-27 | 2013-09-27 | The transmission method of control signaling and base station |
| PCT/CN2014/074872 WO2015043153A1 (en) | 2013-09-27 | 2014-04-06 | Method for transmitting control signalling and base station |
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| CN201310452558.9A CN103491516B (en) | 2013-09-27 | 2013-09-27 | The transmission method of control signaling and base station |
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| WO2015043153A1 (en) * | 2013-09-27 | 2015-04-02 | 宇龙计算机通信科技(深圳)有限公司 | Method for transmitting control signalling and base station |
| CN106793097A (en) * | 2016-04-01 | 2017-05-31 | 展讯通信（上海）有限公司 | The control method of user equipment, network side equipment and user equipment |
| WO2018166226A1 (en) * | 2017-03-14 | 2018-09-20 | 深圳市金立通信设备有限公司 | Physical downlink control channel sending and receiving method, and related device |
| CN110139342A (en) * | 2019-05-17 | 2019-08-16 | 中磊电子（苏州）有限公司 | Base station and its search space distribution method |
| CN110313210A (en) * | 2017-01-05 | 2019-10-08 | 诺基亚技术有限公司 | For discontinuous reception pattern and/or the downlink control channel monitoring optimizing of narrow-band operation |
| WO2019237929A1 (en) * | 2018-06-14 | 2019-12-19 | 维沃移动通信有限公司 | Method for configuring monitoring parameter of physical downlink control channel, and terminal and network side device |
| CN110876179A (en) * | 2018-08-31 | 2020-03-10 | 华为技术有限公司 | Monitoring method and device |
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| WO2015043153A1 (en) * | 2013-09-27 | 2015-04-02 | 宇龙计算机通信科技(深圳)有限公司 | Method for transmitting control signalling and base station |
| CN113286364A (en) * | 2016-03-16 | 2021-08-20 | 瑞典爱立信有限公司 | Common Search Space (CSS) for paging NB-IoT devices |
| CN106793097B (en) * | 2016-04-01 | 2019-12-03 | 展讯通信（上海）有限公司 | The control method of user equipment, network side equipment and user equipment |
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| CN110313210B (en) * | 2017-01-05 | 2023-12-08 | 诺基亚技术有限公司 | Downlink control channel monitoring optimization for discontinuous reception mode and/or narrowband operation |
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| WO2019237929A1 (en) * | 2018-06-14 | 2019-12-19 | 维沃移动通信有限公司 | Method for configuring monitoring parameter of physical downlink control channel, and terminal and network side device |
| CN110611925A (en) * | 2018-06-14 | 2019-12-24 | 维沃移动通信有限公司 | Physical downlink control channel monitoring parameter configuration method, terminal and network side equipment |
| CN110876179A (en) * | 2018-08-31 | 2020-03-10 | 华为技术有限公司 | Monitoring method and device |
| CN110139342A (en) * | 2019-05-17 | 2019-08-16 | 中磊电子（苏州）有限公司 | Base station and its search space distribution method |
| CN110139342B (en) * | 2019-05-17 | 2021-07-06 | 中磊电子（苏州）有限公司 | Base station and search space allocation method thereof |
Also Published As
| Publication number | Publication date |
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| WO2015043153A1 (en) | 2015-04-02 |
| CN103491516B (en) | 2018-05-15 |
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