CN103491516B - The transmission method of control signaling and base station - Google Patents
The transmission method of control signaling and base station Download PDFInfo
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- CN103491516B CN103491516B CN201310452558.9A CN201310452558A CN103491516B CN 103491516 B CN103491516 B CN 103491516B CN 201310452558 A CN201310452558 A CN 201310452558A CN 103491516 B CN103491516 B CN 103491516B
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- control channel
- base station
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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
-
- 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
Abstract
The present invention provides a kind of transmission method of control signaling, including：Base station generation common control channel order, includes uplink-downlink configuration information in the common control channel order, and common control channel order is placed in public search space；Send the common control channel order.The invention also provides a kind of base station.By technical scheme, the terminal in cell can be made to obtain uplink-downlink configuration information all directly from public search space, without individually being sent to each terminal respectively, help to reduce signaling transmission times, reduce the expense of control channel.
Description
Technical field
The present invention relates to wireless communication technology field, in particular to the transmission method and one kind of a kind of control signaling
Base station.
Background technology
In order to solve TDD（Time Division Duplex, time division duplex）Uplink and downlink business is asymmetric in system asks
Topic, devises 7 kinds of DL-UL altogether in 3GPP Rel-8（Downlink-uplink）Sub-frame configuration mode, as shown in Figure 1, being respectively
Configuration（Configuration）0 to configuration 6, and has different DL, UL subframe number in different configurations, that is, what is included is special
Subframe 102, sub-frame of uplink 104 are different with the quantity of downlink subframe 106, to tackle the different business demand of TDD-LTE system.
Studies have shown that in correlation technique quickly changes uplink and downlink in same geographic area according to customer service demand
Configuration, can bring larger throughput gain.Since Microcell is usually apart from each other, the natural effect with interference and insulation,
Therefore this gain becomes apparent in Microcell.But in the design of Rel-8, configuration is only once updated per 320ms
Chance, and operator, in order to reduce the cross jamming of adjacent cell, in the identical uplink-downlink configuration of a region generally use, this is aobvious
Can not so meet in actual use the needs of to handling capacity.
Therefore, the reasonable transmission to uplink-downlink configuration information how is realized so that each cell can easily basis
Oneself suitable DL-UL transmission configuration of current portfolio configuration, and without more control channel expenses, become at present urgently
Technical problem to be solved.
The content of the invention
The present invention is based on the above problem, it is proposed that a kind of new technical solution, can make the terminal in cell all straight
The acquisition uplink-downlink configuration information from public search space is connect, without individually sending to each terminal respectively, helps to reduce
Signaling transmission times, reduces the expense of control channel.
In view of this, the present invention proposes a kind of transmission method of control signaling, including：Base station generates common control channel
Order, includes uplink-downlink configuration information in the common control channel order, and common control channel order is placed in public search space
In；Send the common control channel order.
In the technical scheme, control signaling is often in PDCCH（Physical Downlink Control Channel）Or E-PDCCH（Increase
Strong Physical Downlink Control Channel）Middle transmission, and in order to coordinate blind examination to measure mode, and it is divided into public search space and special
Search space.Wherein, by the way that common control channel order is placed in public search space so that whole or the part terminal specified all may be used
Therefrom to obtain uplink-downlink configuration information, without sending one by one, help to reduce Signalling exchange, reduce the expense of control channel.
In the above-mentioned technical solutions, it is preferable that the uplink-downlink configuration information in the common control channel order is located at serial number 3
Or in the Downlink Control Information of 3A.
In the technical scheme, the Downlink Control Information of serial number 3 or 3A（DCI, Downlink Control
Information）It is used for transmission TPC（Transmission Power Control, transmitting power control）Power contorl parameters,
But since terminal usually not so much in cell works at the same time and needs Power Control, thus under serial number 3 or 3A
Often there are some idle bits in row control information.By the way that uplink-downlink configuration information is added to above-mentioned idle bit
Position so that reduce the transmission times of signaling, improved with less message structure, realize the hair to uplink-downlink configuration information
Send.
In any of the above-described technical solution, it is preferable that further include：The base station is interim using different wireless networks respectively
Mark（RNTI）, the other information in the uplink-downlink configuration information and common control channel order is scrambled.
In the technical scheme, terminal is needed by way of blind Detecting, come the data that determine to be currently received whether be
Itself actually required information.Specifically such as：By setting corresponding Radio Network Temporary Identifier to different information（Such as
RNTI）, and corresponding information is scrambled using the RNTI, if terminal can use identical RNTI to dock received data
Descrambled, then it is terminal required information to illustrate the data.Therefore, it is necessary to by the corresponding RNTI of uplink-downlink configuration information with letter
The corresponding RNTI of other information in order is distinguished, in order to terminal can know exactly be currently received whether be on
Downstream arrangements information.Specifically, the corresponding RNTI of uplink-downlink configuration information can be the RNTI of brand-new design, or existing
RNTI, but can RNTI corresponding with the other information in same signaling distinguish.
In any of the above-described technical solution, it is preferable that further include：The service terminal of the base station is divided into multiple users
Group；Wherein, the uplink-downlink configuration information for corresponding respectively to each user group is included in the common control channel order.
In the technical scheme, the service terminal of base station refers to that base station provides service for it, performs the terminal of data interaction,
Uplink-downlink configuration information is individually distributed by being grouped to service terminal, and for each user group so that in same cell
Different uplink-downlink configuration information can be used.Wherein it is possible to the corresponding service terminal in each Microcell is arranged to a use
Family group, then since Microcell is usually apart from each other, have preferable interference and insulation effect, and can bring larger handling capacity
Gain.
In any of the above-described technical solution, it is preferable that further include：Institute is sent using the subframe of serial number 0,1,5 and/or 6
State common control channel order.
In the technical scheme, in the 7 kinds of uplink-downlink configuration information defined at present, the subframe of serial number 0,1,5 and 6 is equal
For downlink subframe（Sequence number 1 is special subframe, wherein there is DwPTS to be fixed as downlink, can be considered as downlink subframe）, thus at this
Common control channel is transmitted on a little frame when making, the laser propagation effect that can be relatively more stablized, helps avoid the hair of interference
It is raw.Wherein, " subframe of serial number 0,1,5 and/or 6 " represents optional one, two, three or whole subframes from 0,1,5,6,
For sending common control channel order.
In any of the above-described technical solution, it is preferable that be in discontinuous reception when existing in the service terminal of the base station
（DRX, Discontinuous Reception）During the terminal of state, the transmission method further includes：The base station generation is special
Control signaling, includes the uplink-downlink configuration information in the dedicated control signaling, and the dedicated control signaling is placed in institute
State in the corresponding dedicated search space of terminal in discontinuous receiving state；Send the dedicated control signaling.
In the technical scheme, when in cell there are during the terminal of DRX states, since it is only at a fixed time in section
Revival and receive information, and resting state is then kept in other times section, thus it may be caused not normally receive
The common control channel order stated.Make, missed to uplink and downlink parameter in order to avoid the terminal of DRX states does not receive common control channel
Situations such as configuring, and causing transmission confusion and cross jamming, can be directed to the terminal of DRX states, uplink-downlink configuration information is put
In corresponding dedicated search space, to ensure that it can receive uplink-downlink configuration information.Due to being in DRX states in cell
Terminal limited amount, thus under the cooperation of common control channel order, remain able to the quantity forwarded of effective control signaling with
And the expense situation of control channel.
In any of the above-described technical solution, it is preferable that the uplink-downlink configuration information in the dedicated control signaling, which is located at, seeks
Exhale in information or the corresponding Downlink Control Information of resource allocation information.
In the technical scheme, due to being in the terminals of DRX states, the money of the main paging information and uplink for monitoring downlink
Information is distributed in source, therefore can be by the way that in paging information or the corresponding Downlink Control Information of resource allocation information, addition corresponds to
In the uplink-downlink configuration information of the terminal of DRX states, so that all terminals in cell can be received corresponding to certainly
The uplink-downlink configuration information of body, avoids producing data corruption and cross jamming.
In any of the above-described technical solution, it is preferable that be in discontinuous reception when existing in the service terminal of the base station
During the terminal of state, the transmission method further includes：Period assignment signaling is generated, the period assignment signaling includes period assignment
Information, the period assignment information are used to configure the listening period of the terminal in discontinuous receiving state so that institute
State the terminal in discontinuous receiving state and receive the common control channel order in the listening period；Non- company is in described
The terminal of continuous reception state sends above-mentioned period assignment signaling.
In the technical scheme, the terminal of DRX states can enter normal condition and receive in the time interval set
Information, thus the listening period of the terminal by configuring DRX states, make it send the time interval of common control channel order in base station
Inside monitored, so that all terminals in cell can receive the uplink-downlink configuration information corresponding to itself, avoided
Produce data corruption and cross jamming.
The present invention also correspondingly proposes a kind of base station, including：Data processing module, for generating common control channel order,
Uplink-downlink configuration information is included in the common control channel order, and common control channel order is placed in public search space；
Data interaction module, for sending the common control channel order.
In the technical scheme, control signaling is often in PDCCH（Physical Downlink Control Channel）Or E-PDCCH（Increase
Strong Physical Downlink Control Channel）Middle transmission, and in order to coordinate blind examination to measure mode, and it is divided into public search space and special
Search space.Wherein, by the way that common control channel order is placed in public search space so that whole or the part terminal specified all may be used
Therefrom to obtain uplink-downlink configuration information, without sending one by one, help to reduce Signalling exchange, reduce the expense of control channel.
In the above-mentioned technical solutions, it is preferable that the uplink-downlink configuration information in the common control channel order is located at serial number 3
Or in the Downlink Control Information of 3A.
In the technical scheme, the Downlink Control Information of serial number 3 or 3A（DCI, Downlink Control
Information）It is used for transmission TPC（Transmission Power Control, transmitting power control）Power contorl parameters,
But since terminal usually not so much in cell works at the same time and needs Power Control, thus under serial number 3 or 3A
Often there are some idle bits in row control information.By the way that uplink-downlink configuration information is added to above-mentioned idle bit
Position so that reduce the transmission times of signaling, improved with less message structure, realize the hair to uplink-downlink configuration information
Send.
In any of the above-described technical solution, it is preferable that the data processing module is additionally operable to：Respectively using different
RNTI, scrambles the other information in the uplink-downlink configuration information and common control channel order.
In the technical scheme, terminal is needed by way of blind Detecting, come the data that determine to be currently received whether be
Itself actually required information.Specifically such as：By setting corresponding Radio Network Temporary Identifier to different information（Such as
RNTI）, and corresponding information is scrambled using the RNTI, if terminal can use identical RNTI to dock received data
Descrambled, then it is terminal required information to illustrate the data.Therefore, it is necessary to by the corresponding RNTI of uplink-downlink configuration information with letter
The corresponding RNTI of other information in order is distinguished, in order to terminal can know exactly be currently received whether be on
Downstream arrangements information.Specifically, the corresponding RNTI of uplink-downlink configuration information can be the RNTI of brand-new design, or existing
RNTI, but can RNTI corresponding with the other information in same signaling distinguish.
In any of the above-described technical solution, it is preferable that the data processing module is additionally operable to：The service of the base station is whole
End is divided into multiple user groups；Wherein, include in common control channel order and correspond respectively to the uplink and downlink of each user group and match somebody with somebody
Confidence ceases.
In the technical scheme, the service terminal of base station refers to that base station provides service for it, performs the terminal of data interaction,
Uplink-downlink configuration information is individually distributed by being grouped to service terminal, and for each user group so that in same cell
Different uplink-downlink configuration information can be used.Wherein it is possible to the corresponding service terminal in each Microcell is arranged to a use
Family group, then since Microcell is usually apart from each other, have preferable interference and insulation effect, and can bring larger handling capacity
Gain.
In any of the above-described technical solution, it is preferable that the data interaction module is additionally operable to：Using serial number 0,1,5 and/
Or 6 subframe sends the common control channel order.
In the technical scheme, in the 7 kinds of uplink-downlink configuration information defined at present, the subframe of serial number 0,1,5 and 6 is equal
For downlink subframe（Sequence number 1 is special subframe, wherein there is DwPTS to be fixed as downlink, can be considered as downlink subframe）, thus at this
Common control channel is transmitted on a little frame when making, the laser propagation effect that can be relatively more stablized, helps avoid the hair of interference
It is raw.Wherein, " subframe of serial number 0,1,5 and/or 6 " represents optional one, two, three or whole subframes from 0,1,5,6,
For sending common control channel order.
In any of the above-described technical solution, it is preferable that be in discontinuous reception when existing in the service terminal of the base station
During the terminal of state, the data processing module is additionally operable to：Dedicated control signaling is generated, institute is included in the dedicated control signaling
State uplink-downlink configuration information, and it is corresponding specially that the dedicated control signaling is placed in the terminal in discontinuous receiving state
With in search space；The data interaction module is additionally operable to：Send the dedicated control signaling.
In the technical scheme, when in cell there are during the terminal of DRX states, since it is only at a fixed time in section
Revival and receive information, and resting state is then kept in other times section, thus it may be caused not normally receive
The common control channel order stated.Make, missed to uplink and downlink parameter in order to avoid the terminal of DRX states does not receive common control channel
Situations such as configuring, and causing transmission confusion and cross jamming, can be directed to the terminal of DRX states, uplink-downlink configuration information is put
In corresponding dedicated search space, to ensure that it can receive uplink-downlink configuration information.Due to being in DRX states in cell
Terminal limited amount, thus under the cooperation of common control channel order, remain able to the quantity forwarded of effective control signaling with
And the expense situation of control channel.
In any of the above-described technical solution, it is preferable that the uplink-downlink configuration information in the dedicated control signaling, which is located at, seeks
Exhale in information or the corresponding Downlink Control Information of resource allocation information.
In the technical scheme, due to being in the terminals of DRX states, the money of the main paging information and uplink for monitoring downlink
Information is distributed in source, therefore can be by the way that in paging information or the corresponding Downlink Control Information of resource allocation information, addition corresponds to
In the uplink-downlink configuration information of the terminal of DRX states, so that all terminals in cell can be received corresponding to certainly
The uplink-downlink configuration information of body, avoids producing data corruption and cross jamming.
In any of the above-described technical solution, it is preferable that be in discontinuous reception when existing in the service terminal of the base station
During the terminal of state, the data processing module is additionally operable to：Period assignment signaling is generated, the period assignment signaling includes the cycle
Configuration information, the period assignment information are used to configure the listening period of the terminal in discontinuous receiving state, make
Obtain the terminal in discontinuous receiving state and receive the common control channel order in the listening period；The data are handed over
Mutual module is additionally operable to：Above-mentioned period assignment signaling is sent to the terminal in discontinuous receiving state.
In the technical scheme, the terminal of DRX states can enter normal condition and receive in the time interval set
Information, thus the listening period of the terminal by configuring DRX states, make it send the time interval of common control channel order in base station
Inside monitored, so that all terminals in cell can receive the uplink-downlink configuration information corresponding to itself, avoided
Produce data corruption and cross jamming.
By above technical scheme, the terminal in cell can be made to obtain uplink and downlink all directly from public search space and matched somebody with somebody
Confidence ceases, and without individually being sent to each terminal respectively, helps to reduce signaling transmission times, reduces opening for control channel
Pin.
Brief description of the drawings
Fig. 1 shows the structure diagram of seven kinds of radio frames in TDD system defined in correlation technique；
Fig. 2 shows the schematic flow diagram of the transmission method of control signaling according to an embodiment of the invention；
Fig. 3 shows the schematic diagram according to an embodiment of the invention that uplink-downlink configuration information is sent to DRX terminals；
Fig. 4 shows the signal that uplink-downlink configuration information is sent to DRX terminals according to another embodiment of the invention
Figure；
Fig. 5 shows the schematic block diagram of base station according to an embodiment of the invention.
Embodiment
It is to better understand the objects, features and advantages of the present invention, below in conjunction with the accompanying drawings and specific real
Mode is applied the present invention is further described in detail.It should be noted that in the case where there is no conflict, the implementation of the application
Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
To be implemented using other different from other modes described here, therefore, protection scope of the present invention and from described below
Specific embodiment limitation.
The present invention is proposed by signalling, realizes the technical solution of the transmission of uplink-downlink configuration information, wherein, for
The terminal of different conditions in cell, there are different processing modes, will be described in detail respectively below.
First, for the terminal of normal condition
Fig. 2 shows the schematic flow diagram of the transmission method of control signaling according to an embodiment of the invention.
As shown in Fig. 2, the transmission method of control signaling according to an embodiment of the invention, including：Base station generates public control
Signaling processed, includes uplink-downlink configuration information in the common control channel order, and common control channel order is placed in common search
In space；Send the common control channel order.
In the technical scheme, control signaling is often in PDCCH（Physical Downlink Control Channel）Or E-PDCCH（Increase
Strong Physical Downlink Control Channel）Middle transmission, and in order to coordinate blind examination to measure mode, and it is divided into public search space and special
Search space.Wherein, by the way that common control channel order is placed in public search space so that whole or the part terminal specified all may be used
Therefrom to obtain uplink-downlink configuration information, without sending one by one, help to reduce Signalling exchange, reduce the expense of control channel.
For above-mentioned uplink-downlink configuration information, can be specifically transmitted using various ways, such as：
1）Above-mentioned uplink-downlink configuration information is placed in the Downlink Control Information of serial number 3 or 3A.
The Downlink Control Information of serial number 3 or 3A（DCI, Downlink Control Information）It is used for transmission
TPC（Transmission Power Control, transmitting power control）Power contorl parameters, but due in cell usually not
There is so much terminal to work at the same time and need Power Control, thus often exist in the Downlink Control Information of serial number 3 or 3A
Some idle bits.By the way that uplink-downlink configuration information is added to above-mentioned idle bit position so that reduce signaling
Transmission times, is improved with less message structure, realizes the transmission to uplink-downlink configuration information.
2）Other Downlink Control Information can also be used；Or the information using whole new definition, its concrete structure can join
Examine such as DCI Format3/3A（The Downlink Control Information of 44 bits, i.e., above-mentioned serial number 3 or 3A）, reliability can also be referred to
The DCI Format1 of higher（55 bits）Etc. other information.
When needing above-mentioned uplink-downlink configuration information being added in existing information, such as added to DCI
In Format3/3A, different Radio Network Temporary Identifiers can be used（RNTI）, to the uplink-downlink configuration information and other
Information is scrambled.
The program is related to the blind detection process of terminal.It is current to determine since terminal is needed by way of blind Detecting
Whether the data received are itself actually required information, specifically such as：It is corresponding wireless by being set to different information
Network Temporary Identifier（Such as RNTI）, and corresponding information is scrambled using the RNTI, if terminal can use it is identical
RNTI docks received data and is descrambled, then it is terminal required information to illustrate the data.Therefore, it is necessary to by uplink-downlink configuration
The corresponding RNTI of information RNTIs corresponding with the other information in signaling is distinguished, and is worked as in order to which terminal can be known exactly
Before whether receive be uplink-downlink configuration information.
Certainly, the corresponding RNTI of uplink-downlink configuration information may have diversified forms：1）Believe currently for different control
Breath, is already provided with many different RNTI, then due to only including part control information in such as DCI Format3/3A so that only
Need to make choice from existing RNTI, and the RNTI for ensuring to choose and the control information included in such as DCI Format3/3A
Corresponding RNTI is different, you can ensures that terminal can effectively distinguish a variety of information；2）Can also design with it is existing
All different, the brand-new RNTI of all RNTI, for uplink-downlink configuration information is scrambled and descrambled.
In any of the above-described technical solution, it is preferable that further include：The service terminal of the base station is divided into multiple users
Group；Wherein, the uplink-downlink configuration information for corresponding respectively to each user group is included in the common control channel order.
In the technical scheme, the service terminal of base station refers to that base station provides service for it, performs the terminal of data interaction,
Uplink-downlink configuration information is individually distributed by being grouped to service terminal, and for each user group so that in same cell
Different uplink-downlink configuration information can be used.Wherein it is possible to the corresponding service terminal in each Microcell is arranged to a use
Family group, then since Microcell is usually apart from each other, have preferable interference and insulation effect, and can bring larger handling capacity
Gain.
In any of the above-described technical solution, it is preferable that further include：Institute is sent using the subframe of serial number 0,1,5 and/or 6
State common control channel order.
In the technical scheme, in the 7 kinds of uplink-downlink configuration information defined at present, the subframe of serial number 0,1,5 and 6 is equal
For downlink subframe（Sequence number 1 is special subframe, wherein there is DwPTS to be fixed as downlink, can be considered as downlink subframe）, thus at this
Common control channel is transmitted on a little frame when making, the laser propagation effect that can be relatively more stablized, helps avoid the hair of interference
It is raw.Wherein, " subframe of serial number 0,1,5 and/or 6 " represents optional one, two, three or whole subframes from 0,1,5,6,
For sending common control channel order.
2nd, for the terminal of DRX states
Embodiment 1
Fig. 3 shows the schematic diagram according to an embodiment of the invention that uplink-downlink configuration information is sent to DRX terminals.
As shown in figure 3, when in cell there are during the terminal of DRX states, since it only revives in section at a fixed time
And receive information, and resting state is then kept in other times section, thus it is above-mentioned that it may be caused not normally receive
Common control channel makes.Made in order to avoid the terminal of DRX states does not receive common control channel, miss and uplink and downlink parameter is matched somebody with somebody
Situations such as putting, and causing transmission confusion and cross jamming, the terminal that can be directed to DRX states perform operations described below：
The base station generates dedicated control signaling, and the uplink-downlink configuration information is included in the dedicated control signaling, and
The dedicated control signaling is placed in the corresponding dedicated search space of terminal in discontinuous receiving state；Send institute
State dedicated control signaling.
Therefore, the terminal of normal condition and terminal in DRX states are in for cell, respectively believe uplink-downlink configuration
Breath is placed in public search space and dedicated search space, so that it is guaranteed that all terminals can be received corresponding to the upper of itself
Downstream arrangements information.Wherein, due to the limited amount of the terminal in DRX states in cell, thus in common control channel order
Under cooperation, the quantity forwarded of effective control signaling and the expense situation of control channel are remained able to.
Preferably, the uplink-downlink configuration information in the dedicated control signaling is located at paging information or resource allocation information pair
In the Downlink Control Information answered.
In the technical scheme, due to being in the terminals of DRX states, the money of the main paging information and uplink for monitoring downlink
Information is distributed in source, therefore can be by the way that in paging information or the corresponding Downlink Control Information of resource allocation information, addition corresponds to
In the uplink-downlink configuration information of the terminal of DRX states, so that all terminals in cell can be received corresponding to certainly
The uplink-downlink configuration information of body, avoids producing data corruption and cross jamming.
Embodiment 2
For the terminal that DRX states are in cell, other modes can also be used, to ensure that it is received on corresponding
Downstream arrangements information, is described in detail with reference to Fig. 4, wherein, Fig. 4 is shown according to another embodiment of the invention
The schematic diagram of uplink-downlink configuration information is sent to DRX terminals.
Base station side：Base station respectively carries out uplink-downlink configuration information and other information in default time interval
Send.
DRX end sides：DRX terminals are according to the cycle of configuration, the checker between normal condition and DRX states.
When not performing special universal time coordinated to DRX terminals, then DRX terminals are switched to the time of normal condition from DRX states
Window, it is likely that the time window that uplink-downlink configuration information is sent with base station mismatches, and causes terminal not receive and is placed in public affairs
Uplink-downlink configuration information in search space altogether.
And by coordinating to the special of DRX terminals so that DRX terminals are switched to the time window of normal condition from DRX states
Mouthful, the time window that uplink-downlink configuration information is sent with base station matches, and can just listen to and be placed in public search space
Interior uplink-downlink configuration information, so that all terminals in cell can sequentially be obtained and matched somebody with somebody corresponding to the uplink and downlink of itself
Confidence ceases, and avoids producing data corruption and cross jamming.
For such scheme, the invention also provides corresponding hardware module or function structure, is carried out with reference to Fig. 5 detailed
Describe in detail it is bright, 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, including：Data processing module 502, for generating public affairs
Control signaling altogether, include uplink-downlink configuration information in common control channel order, and the common control channel made be placed in it is public
In search space；Data interaction module 504, for sending the common control channel order.
In the technical scheme, control signaling is often in PDCCH（Physical Downlink Control Channel）Or E-PDCCH（Increase
Strong Physical Downlink Control Channel）Middle transmission, and in order to coordinate blind examination to measure mode, and it is divided into public search space and special
Search space.Wherein, by the way that common control channel order is placed in public search space so that whole or the part terminal specified all may be used
Therefrom to obtain uplink-downlink configuration information, without sending one by one, help to reduce Signalling exchange, reduce the expense of control channel.
In the above-mentioned technical solutions, it is preferable that the uplink-downlink configuration information in the common control channel order is located at serial number 3
Or in the Downlink Control Information of 3A.
In the technical scheme, the Downlink Control Information of serial number 3 or 3A（DCI, Downlink Control
Information）It is used for transmission TPC（Transmission Power Control, transmitting power control）Power contorl parameters,
But since terminal usually not so much in cell works at the same time and needs Power Control, thus under serial number 3 or 3A
Often there are some idle bits in row control information.By the way that uplink-downlink configuration information is added to above-mentioned idle bit
Position so that reduce the transmission times of signaling, improved with less message structure, realize the hair to uplink-downlink configuration information
Send.
In any of the above-described technical solution, it is preferable that the data processing module 502 is additionally operable to：Respectively using different
RNTI, scrambles the other information in the uplink-downlink configuration information and common control channel order.
In the technical scheme, terminal is needed by way of blind Detecting, come the data that determine to be currently received whether be
Itself actually required information.Specifically such as：By setting corresponding Radio Network Temporary Identifier to different information（Such as
RNTI）, and corresponding information is scrambled using the RNTI, if terminal can use identical RNTI to dock received data
Descrambled, then it is terminal required information to illustrate the data.Therefore, it is necessary to by the corresponding RNTI of uplink-downlink configuration information with letter
The corresponding RNTI of other information in order is distinguished, in order to terminal can know exactly be currently received whether be on
Downstream arrangements information.Specifically, the corresponding RNTI of uplink-downlink configuration information can be the RNTI of brand-new design, or existing
RNTI, but can RNTI corresponding with the other information in same signaling distinguish.
In any of the above-described technical solution, it is preferable that the data processing module 502 is additionally operable to：By the base station 500
Service terminal is divided into multiple user groups；Wherein, include in the common control channel order and correspond respectively to the upper of each user group
Downstream arrangements information.
In the technical scheme, the service terminal of base station 500 refers to that base station 500 provides service for it, performs data interaction
Terminal, individually distribute uplink-downlink configuration information by being grouped to service terminal, and for each user group so that same small
Different uplink-downlink configuration information can also be used in area.Wherein it is possible to the corresponding service terminal in each Microcell is arranged to
One user group, then since Microcell is usually apart from each other, have preferable interference and insulation effect, and can bring larger
Throughput gain.
In any of the above-described technical solution, it is preferable that the data interaction module 504 is additionally operable to：Use serial number 0,1,5
And/or 6 subframe sends the common control channel order.
In the technical scheme, in the 7 kinds of uplink-downlink configuration information defined at present, the subframe of serial number 0,1,5 and 6 is equal
For downlink subframe（Sequence number 1 is special subframe, wherein there is DwPTS to be fixed as downlink, can be considered as downlink subframe）, thus at this
Common control channel is transmitted on a little frame when making, the laser propagation effect that can be relatively more stablized, helps avoid the hair of interference
It is raw.Wherein, " subframe of serial number 0,1,5 and/or 6 " represents optional one, two, three or whole subframes from 0,1,5,6,
For sending common control channel order.
In any of the above-described technical solution, it is preferable that connect when existing in the service terminal of the base station 500 in discontinuous
During the terminal of receipts state, the data processing module 502 is additionally operable to：Dedicated control signaling is generated, in the dedicated control signaling
The terminal-pair for being in discontinuous receiving state is placed in comprising the uplink-downlink configuration information, and by the dedicated control signaling
In the dedicated search space answered；The data interaction module 504 is additionally operable to：Send the dedicated control signaling.
In the technical scheme, when in cell there are during the terminal of DRX states, since it is only at a fixed time in section
Revival and receive information, and resting state is then kept in other times section, thus it may be caused not normally receive
The common control channel order stated.Make, missed to uplink and downlink parameter in order to avoid the terminal of DRX states does not receive common control channel
Situations such as configuring, and causing transmission confusion and cross jamming, can be directed to the terminal of DRX states, uplink-downlink configuration information is put
In corresponding dedicated search space, to ensure that it can receive uplink-downlink configuration information.Due to being in DRX states in cell
Terminal limited amount, thus under the cooperation of common control channel order, remain able to the quantity forwarded of effective control signaling with
And the expense situation of control channel.
In any of the above-described technical solution, it is preferable that the uplink-downlink configuration information in the dedicated control signaling, which is located at, seeks
Exhale in information or the corresponding Downlink Control Information of resource allocation information.
In the technical scheme, due to being in the terminals of DRX states, the money of the main paging information and uplink for monitoring downlink
Information is distributed in source, therefore can be by the way that in paging information or the corresponding Downlink Control Information of resource allocation information, addition corresponds to
In the uplink-downlink configuration information of the terminal of DRX states, so that all terminals in cell can be received corresponding to certainly
The uplink-downlink configuration information of body, avoids producing data corruption and cross jamming.
In any of the above-described technical solution, it is preferable that connect when existing in the service terminal of the base station 500 in discontinuous
During the terminal of receipts state, the data processing module 502 is additionally operable to：Generate period assignment signaling, the period assignment signaling bag
Information containing period assignment, the period assignment information are used to match somebody with somebody the listening period of the terminal in discontinuous receiving state
Put so that the terminal in discontinuous receiving state receives the common control channel order in the listening period；It is described
Data interaction module 504 is additionally operable to：Above-mentioned period assignment signaling is sent to the terminal in discontinuous receiving state.
In the technical scheme, the terminal of DRX states can enter normal condition and receive in the time interval set
Information, thus the listening period of the terminal by configuring DRX states, make it send the time of common control channel order in base station 500
Monitored in section, so that all terminals in cell can receive the uplink-downlink configuration information corresponding to itself,
Avoid producing data corruption and cross jamming.
Technical scheme is described in detail above in association with attached drawing, the present invention proposes a kind of transmission of control signaling
Method and a kind of base station, can make the terminal in cell obtain uplink-downlink configuration information all directly from public search space, and
Without individually being sent to each terminal respectively, help to reduce signaling transmission times, reduce the expense of control channel.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, for the skill of this area
For art personnel, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (14)
- A kind of 1. transmission method of control signaling, it is characterised in that including：Base station generation common control channel order, includes uplink-downlink configuration information in common control channel order, and by the public control Signaling processed is placed in public search space；Send the common control channel order；When there is the terminal in discontinuous receiving state in the service terminal of the base station, the transmission method further includes：The base station generates dedicated control signaling, includes the uplink-downlink configuration information in the dedicated control signaling, and by institute Dedicated control signaling is stated to be placed in the corresponding dedicated search space of terminal in discontinuous receiving state；Send the dedicated control signaling.
- 2. the transmission method of control signaling according to claim 1, it is characterised in that upper in the common control channel order Downstream arrangements information is located in the Downlink Control Information of serial number 3 or 3A.
- 3. the transmission method of control signaling according to claim 2, it is characterised in that further include：The base station uses different Radio Network Temporary Identifiers respectively, to the uplink-downlink configuration information and the public control Other information in signaling is scrambled.
- 4. the transmission method of control signaling according to claim 1, it is characterised in that further include：The service terminal of the base station is divided into multiple user groups；Wherein, the uplink-downlink configuration information for corresponding respectively to each user group is included in the common control channel order.
- 5. the transmission method of control signaling according to claim 1, it is characterised in that further include：The common control channel is sent using the subframe of serial number 0,1,5 and/or 6 to make.
- 6. the transmission method of control signaling according to claim 1, it is characterised in that upper in the dedicated control signaling Downstream arrangements information is located in paging information or the corresponding Downlink Control Information of resource allocation information.
- 7. the transmission method of control signaling according to any one of claim 1 to 5, it is characterised in that when the base station Service terminal in exist in discontinuous receiving state terminal when, the transmission method further includes：Generate period assignment signaling, the period assignment signaling include period assignment information, the period assignment information for pair The listening period of terminal in discontinuous receiving state is configured so that the terminal in discontinuous receiving state exists The listening period receives the common control channel order；Above-mentioned period assignment signaling is sent to the terminal in discontinuous receiving state.
- A kind of 8. base station, it is characterised in that including：Data processing module, for generating common control channel order, uplink-downlink configuration information is included in the common control channel order, and Common control channel order is placed in public search space；Data interaction module, for sending the common control channel order；When there is the terminal in discontinuous receiving state in the service terminal of the base station, the data processing module is also used In：Dedicated control signaling is generated, includes the uplink-downlink configuration information in the dedicated control signaling, and by the special control Signaling is placed in the corresponding dedicated search space of terminal in discontinuous receiving state；The data interaction module is additionally operable to：Send the dedicated control signaling.
- 9. base station according to claim 8, it is characterised in that the uplink-downlink configuration information bit in the common control channel order In the Downlink Control Information of serial number 3 or 3A.
- 10. base station according to claim 9, it is characterised in that the data processing module is additionally operable to：Different Radio Network Temporary Identifiers is used respectively, in the uplink-downlink configuration information and common control channel order Other information is scrambled.
- 11. base station according to claim 8, it is characterised in that the data processing module is additionally operable to：The service terminal of the base station is divided into multiple user groups；Wherein, the uplink-downlink configuration information for corresponding respectively to each user group is included in the common control channel order.
- 12. base station according to claim 8, it is characterised in that the data interaction module is additionally operable to：The common control channel is sent using the subframe of serial number 0,1,5 and/or 6 to make.
- 13. base station according to claim 8, it is characterised in that the uplink-downlink configuration information in the dedicated control signaling In paging information or the corresponding Downlink Control Information of resource allocation information.
- 14. the base station according to any one of claim 8 to 12, it is characterised in that when in the service terminal of the base station During in the presence of terminal in discontinuous receiving state, the data processing module is additionally operable to：Generate period assignment signaling, the week Phase configuration signal includes period assignment information, and the period assignment information is used for the prison to the terminal in discontinuous receiving state The cycle is listened to be configured so that the terminal in discontinuous receiving state receives the public control in the listening period Signaling processed；The data interaction module is additionally operable to：Above-mentioned period assignment letter is sent to the terminal in discontinuous receiving state Order.
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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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| CN103491516B (en) * | 2013-09-27 | 2018-05-15 | 东莞宇龙通信科技有限公司 | The transmission method of control signaling and base station |
| MX2018011023A (en) * | 2016-03-16 | 2018-12-17 | Ericsson Telefon Ab L M | Common search space (css) for paging of 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 |
| US11641594B2 (en) * | 2017-01-05 | 2023-05-02 | Nokia Technologies Oy | Downlink control channel monitoring |
| CN108574989A (en) * | 2017-03-14 | 2018-09-25 | 深圳市金立通信设备有限公司 | A kind of Physical Downlink Control Channel method of sending and receiving and relevant device |
| CN110611925B (en) * | 2018-06-14 | 2022-03-18 | 维沃移动通信有限公司 | Physical downlink control channel monitoring parameter configuration method, terminal and network side equipment |
| CN113316229A (en) * | 2018-08-31 | 2021-08-27 | 华为技术有限公司 | Monitoring method and device |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102932884A (en) * | 2011-08-12 | 2013-02-13 | 中兴通讯股份有限公司 | Method and system for realizing DRX (Discontinuous Reception) |
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| CN101841823B (en) * | 2009-03-16 | 2012-06-27 | 电信科学技术研究院 | Method and device for discontinuously monitoring control channels in multicarrier system |
| US9276722B2 (en) * | 2010-05-05 | 2016-03-01 | Qualcomm Incorporated | Expanded search space for R-PDCCH in LTE-A |
| WO2013010301A1 (en) * | 2011-07-15 | 2013-01-24 | 富士通株式会社 | Transmission method, search method and apparatus for downlink control signaling |
| CN102547738B (en) * | 2011-12-07 | 2015-02-25 | 北京邮电大学 | Method for controlling channel resource distribution and terminal blind detection method based on same |
| CN103491516B (en) * | 2013-09-27 | 2018-05-15 | 东莞宇龙通信科技有限公司 | The transmission method of control signaling and base station |
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| CN102932884A (en) * | 2011-08-12 | 2013-02-13 | 中兴通讯股份有限公司 | Method and system for realizing DRX (Discontinuous Reception) |
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