CN107295671A

CN107295671A - The communication means and device of a kind of Downlink Control Information

Info

Publication number: CN107295671A
Application number: CN201610304255.6A
Authority: CN
Inventors: 陈冬雷; 夏树强; 游爱民; 戴谦
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2016-03-31
Filing date: 2016-05-09
Publication date: 2017-10-24

Abstract

The application proposes a kind of communication means and device of Downlink Control Information, is related to LTE and NR mobile communications networks field, including：The Cyclic Redundancy Code CRC parts in Physical Downlink Control Channel and physical down data channel are scrambled using predetermined Radio Network Temporary Identifier RNTI；Wherein, the physical down data channel after the scrambling is carried supports a kind of system information of specific transactions for terminal；The Physical Downlink Control Channel after scrambling and the physical down data channel are sent to the terminal of one group of support specific transactions.Reduce base station wireless resource and energy consumption is wasted, improve the transmitting efficiency of system information.

Description

The communication means and device of a kind of Downlink Control Information

Technical field

The present invention relates to LTE (Long Term Evolution, Long Term Evolution) and NR (New Radio, Newly eat dishes without rice or wine) mobile communications network field, and in particular to the communication means and dress of a kind of Downlink Control Information Put.

Background technology

LTE mobile communication network is from 3GPP (3rd Generation Partnership Project, the third generation Partner program) registration study carried out data transmission using 1ms subframe so far, all.With new Have to time delay requirements at the higher level apply appearance, such as virtual reality, real-time cloud computing, to LTE nets Network it is also proposed new requirement, such as reduce air interface transmission time delay.Accordingly, it would be desirable to be directed to air interface transmission research Project verification.In 3GPP RAN#67 meetings, the research on reducing air interface transmission time delay is passed through. Pointed out in the research, it is necessary to assess different Transmission Time Interval (TTI, Transmission Time Interval) the performance gain that length is brought, including TTI length are 1 OFDM symbol, 2 OFDM Symbol, 3 OFDM symbols, 4 OFDM symbols and 7 OFDM symbols.With TTI Length shortens, if design DCI (downlink control also according to mode before Information, Downlink Control Information), will bring control channel expense than it is larger the problem of.

Correlation technique is proposed to introduce two-stage DCI, i.e. slow DCI and fast DCI in downlink and uplink, used In the expense for reducing control channel in short TTI.Terminal for supporting short TTI, uses one in subframe Group or multigroup PRB (Physical Resource Block, Physical Resource Block) to mode carry out public money Source is distributed, and every group of PRB pair includes one or more PRB pairs, as shown in figure 1, giving 2 groups of PRB To schematic diagram, have 3 in only 1 PRB pair, another set PRB pair in one of which PRB pair Individual PRB pair.For one group of PRB pair, in a short TTI can only a terminal use, a son Between the different short TTI of frame in, different terminals can use one group of PRB pair of identical.By this The mode of kind, using the terminal of same group of PRB pair, it is phase in the information of a sub- frame in resource allocation With, it can be placed in slow DCI and transmit, as shown in table 1, and transmission be only needed in fast DCI Related resource distribution index, as shown in table 2.

Table 1

Different information fields	Take bit number
		It is slow to authorize mark	0-2
Originate PRB positions	5-7
		Terminate PRB positions	5-7
SPUCCH takes resource location	3
		Total information bit number	13-19
CRC	16
		Total bit number	26-35

Table 2

Different information fields	Take bit number
		It is slow to authorize mark	0-2
Adjust coded system	2x5
		Redundancy versions	2x2
New data is indicated	2x1
		HARQ process numbers	3
SPUCCH Power Controls	2
		Precoding and number of plies information	3
Total information bit number	24-26
		CRC	16
Total bit number	40-42

Table 1 is to having gone out to introduce slow DCI in PDCCH and be used to send common radio resources configuration information Situation.It is wherein slow to authorize mark to be used to indicate one in multigroup PRB pair, comprise additionally in one group of PRB To starting PRB positions and terminate PRB positions and up sPUCCH and take resource location, table 2 Give the situation for transmitting related dedicated control information using fast DCI in sPDCCH.Including It is slow to authorize mark, for indicating one group of PRB that the data block that current UE is just being transmitted on sPDSCH takes To situation.

In order to adapt to the different demands for supporting short TTI terminal-pairs bandwidth, it may be necessary to given in a sub- frame in The public resource of this kind of multigroup PRB pair of terminal distribution.It is right because the data volume transmitted in DCI is limited In needing when a sub- frame in sends multigroup PRB pair resource information to the terminal for supporting short TTI, it is necessary to Using multiple single slow DCI.In addition, for separately available one or more groups of of downlink and uplink PRB pair resource allocation information, is also to be sent by the different slow DCI of up-downgoing.

Design of the correlation technique on slow DCI, exists and supports short TTI terminal to need in 1ms PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) area of frame in In domain detect multiple PDCCH channels the problem of, and for downlink and uplink public resource distribution by Different slow DCI are sent, and more complexity are carried out to terminal detection band.In addition, for slow DCI, may also need to introduce new DCI format, it is impossible to reuse DCI lattice in existing standard Formula.

In addition, in current LTE system, simply a small number of system informations is that terminal access is necessary, And other substantial amounts of system informations are all related to specific business.The system for being directed to specific transactions due to these Information is also that the PDSCH channels that are scrambled by SI-RNTI are ceaselessly periodically being sent, when not having in cell When having the terminal of related service, this will cause system resource waste and relatively low energy consumption, such as SIB18/19 It is the system information for D2D business, when not having associated terminal in cell, sends related SIB It is not necessarily to, the consumption of energy will be brought, in another example, when for the new SIB of short TTI terminals introducing During cell, when not having short TTI terminals in cell, the consumption of system resource and energy will be also brought.In addition, After terminal have read the specific transactions system information of oneself needs in cell, if the still cycle Property send, be also that unnecessary waste is caused to system resource and energy consumption.

Therefore, it is necessary to introduce new system information sender in 5G NR newly eat dishes without rice or wine GSM Method is to improve the transmitting efficiency of system information.At present, relatively more rational solution is by system information point Into two classes, a class be terminal before being initially accessed, it is necessary to which the system information got a, class is that terminal exists After access, base station can be sent to the pin of terminal by way of RRC specific messages or on demand multicast To the system information of specific transactions.

The content of the invention

In order to solve using PDCCH to support short TTI terminals send public resource distribution information band come Problem and existing LTE network system information transmitting efficiency than it is relatively low the problem of, the present invention provide it is a kind of under The communication means and device of row control information, including the support updated to supporting short TTI terminal to send are short The related common radio resources configuration information of TTI communications.Send and imitate for existing LTE network system information Rate than it is relatively low the problem of, after terminal, which is got, is initially accessed necessary system information access network, base Stand and give system information of the terminal configuration pin to specific transactions by RRC dedicated signalings, when needs are to supporting certain When one group of terminal for planting specific transactions carries out system information renewal, physics is scrambled using different group RNTI Down control channel and physical down data channel, only to support the terminal of such business to receive corresponding System information update.The system information base station that must be obtained before terminal access system still uses one SI-RNTI scrambling physical down data channels carry out broadcast transmission, and SI-RNTI is a group RNTI, right In all users in cell be public.

In order to realize foregoing invention purpose, the technical scheme that the present invention takes is as follows：

A kind of sending method of Downlink Control Information, applied to base station, including：

Using predetermined Radio Network Temporary Identifier RNTI in physical downlink control channel PDCCH Cyclic Redundancy Code CRC parts and Physical Downlink Shared Channel PDSCH are scrambled；Wherein, it is described to add PDSCH channels after disturbing are carried supports a kind of system information of specific transactions for terminal；

The PDCCH and the PDSCH after scrambling is sent to one group of support specific transactions Terminal.

Alternatively, using predetermined RNTI to the Cyclic Redundancy Code CRC portions in Physical Downlink Control Channel Divide and physical down data channel carries out scrambling and included：Physical down data channel after the scrambling is carried System information be used for different specific transactions when, the cyclic redundancy in Physical Downlink Control Channel The predetermined Radio Network Temporary Identifier RNTI that code CRC parts and physical down data channel are scrambled It is different.

Alternatively, the Physical Downlink Control Channel after scrambling and the physical down data channel are sent out Giving the terminal of one group of support specific transactions includes：When base station needs to send the specific industry updated During the system information of business, the Physical Downlink Control Channel after the scrambling and physical down data channel are existed Sent in one or more of one group of discontinuous subframe subframe, one group of discontinuous subframe is at least Determined by following one or more parameters：Starting subframe is being in discontinuous reception cycle, discontinuous-cycle Unite frame in biasing, since originate subframe Physical Downlink Control Channel to be detected number of sub frames.

Alternatively, it is described to be used to determine that the parameter of one group of discontinuous subframe is disappeared by base station by the way that RRC is special Breath by system broadcast information is sent to all ends before being sent to terminal or accessing terminal to network by base station End.

Alternatively, using predetermined RNTI to the Cyclic Redundancy Code CRC portions in Physical Downlink Control Channel Divide and physical down data channel carries out scrambling and included：The Physical Downlink Control Channel is believed for PDCCH Road, the physical down data channel is PDSCH channels, using a group RNTI to the PDCCH In CRC parts and the PDSCH scrambled, PDSCH channels after the scrambling, which are carried, to be propped up The common radio resources configuration information of short transmission time interval TTI communications is held, the short TTI length is less than 1ms；Described group of RNTI is public to the terminal that short TTI is supported described in one group.

Alternatively, the common radio resources configuration information for supporting short TTI communications includes following one Or it is multinomial：Downlink correlated channels available bandwidth, up-link correlated channels available bandwidth, positioned at short PDCCH in TTI or the EPDCCH common configuration informations in short TTI, positioned at short TTI In the related common configuration informations of PHICH, the PUCCH common configuration informations in short TTI, position PDSCH common configuration informations in short TTI, the PUSCH common configurations letter in short TTI Breath, for short TTI Sounding Reference Signal SRS common configuration informations, uplink power control is public Configuration information.

Alternatively, the downlink correlated channels available bandwidth is one or more groups of Physical Resource Block PRB Right, the up-link correlated channels available bandwidth is one or more groups of PRB pairs, one group of PRB To including one or more PRB pairs.

Alternatively, when described group of RNTI for it is non-for system broadcast information send SI-RNTI when, institute Stating the carrying of the PDSCH channels after scrambling supports the common radio resources configuration information of short TTI communications to include：

The public of the short TTI communications of the support is carried by the PDSCH predetermined RRC informations sent Wireless resource configuration, the predetermined RRC information is not the system information broadcasted.

Alternatively, the PDCCH and the PDSCH after scrambling are sent to the short TTI of support Terminal include：

Sent using Downlink Control Information pattern DCI format 1C or DCI format 1A after scrambling The PDCCH；

Institute PDSCH after scrambling is sent using QPSK QPSK modulation systems.

Alternatively, when described group of RNTI is the SI-RNTI for system information transmission, the scrambling PDSCH channels afterwards, which are carried, supports the common radio resources configuration information of short TTI communications to include：

The short TTI communications of the support are sent by the system information block different from system information block SIB2 Common radio resources configuration information, the common radio resources configuration information of the short TTI communications of support is entering Sent in the system information of row broadcast.

The present invention also provides a kind of sending method of Downlink Control Information, applied to base station, including：

Sent and institute to a kind of terminal of specific transactions of support by radio resource control RRC connection message The related system information of specific transactions is stated, the system information includes being used to determine what the system information updated One group of discontinuous subframe relevant parameter, the relevant parameter include it is following one or more：Discontinuously It is the reception cycle, biasing of the starting subframe in system-frame in discontinuous-cycle, to be checked since being originated subframe Survey the number of sub frames of Physical Downlink Control Channel.

Alternatively, sent out by radio resource control RRC connection message to a kind of terminal of specific transactions of support The system information related to the specific transactions is sent to include：Base station is to support short transmission time interval TTI's Terminal sends the common radio resources configuration information for supporting short TTI communications, and the short TTI length is less than 1ms, the common radio resources configuration information of the short TTI communications of support includes following one or more： Downlink correlated channels available bandwidth, up-link correlated channels available bandwidth, in short TTI PDCCH or the EPDCCH common configuration informations in short TTI, the PHICH in short TTI Common configuration information, the PUCCH common configuration informations in short TTI, in short TTI PDSCH common configuration informations, the PUSCH common configuration informations in short TTI, for short TTI Sounding Reference Signal SRS common configuration informations, uplink power control common configuration information.

The present invention also provides a kind of method of reseptance of Downlink Control Information, applied to a kind of specific transactions of support Terminal, including：

Using predetermined Radio Network Temporary Identifier RNTI in Physical Downlink Control Channel public search space Detected, when detecting the Physical Downlink Control Channel using the predetermined RNTI scramblings, connect Receive the physical down data channel that the Physical Downlink Control Channel is indicated；Wherein, the physical down number It is believed that road is scrambled by the predetermined RNTI；

Obtained using the physical down data channel and support a kind of system information of specific transactions.

Alternatively, it is public in Physical Downlink Control Channel using predetermined Radio Network Temporary Identifier RNTI Search space is detected, letter is controlled using the physical down of the predetermined RNTI scramblings when detecting During road, receiving the physical down data channel of the Physical Downlink Control Channel instruction includes：The scrambling It is described to physics when the system information that physical down data channel afterwards is carried is used for different specific transactions It is pre- that Cyclic Redundancy Code CRC parts and physical down data channel in down control channel are scrambled Fixed Radio Network Temporary Identifier RNTI is different.

Alternatively, it is public in Physical Downlink Control Channel using predetermined Radio Network Temporary Identifier RNTI Search space, which carries out detection, to be included：

A kind of specific transactions system is supported to described in one group of discontinuous subframe using predetermined RNTI System information is detected.

Alternatively, one group of discontinuous subframe is at least determined by following one or more parameters：Do not connect Since continued access received cycle, the interior biasing for originating subframe in system-frame of discontinuous-cycle, treated originating subframe Detect the number of sub frames of Physical Downlink Control Channel.

Alternatively, it is described to be used to determine that the parameter of one group of discontinuous subframe passes through RRC specific messages by base station All terminals are sent to by system broadcast information by base station before being sent to terminal or accessing terminal to network.

Alternatively, the Physical Downlink Control Channel is PDCCH channels, the physical down data letter Road is PDSCH channels, is obtained using the PDSCH channels and supports short transmission time interval TTI to communicate Common radio resources configuration information, the short TTI length is less than 1ms, the short TTI communications of the support Common radio resources configuration information include following one or more：Downlink correlated channels can use band Width, up-link correlated channels available bandwidth, PDCCH in short TTI or in short TTI EPDCCH common configuration informations, the related common configuration information of PHICH in short TTI, position PUCCH common configuration informations in short TTI, the PDSCH common configurations letter in short TTI Breath, the PUSCH common configuration informations in short TTI, the channel detection reference for short TTI is believed Number SRS common configuration informations, uplink power control common configuration information.

Alternatively, the downlink correlated channels available bandwidth is one or more groups of PRB pairs, it is described on Line link correlated channels available bandwidth is one or more groups of PRB pairs, and one group of PRB pair includes one Or multiple PRB pairs.

Alternatively, described method also includes：

What is carried according to the common radio resources configuration information and on the PDCCH in short TTI is special With control information, demodulation is located at the PDSCH data channels in short TTI or sent and is located in short TTI PUSCH data channels.

Receive base station is used for a kind of specific transactions by what radio resource control RRC connection message was sent System information, the system information includes being used to determine one group of discontinuous subframe that the system information updates Relevant parameter, the relevant parameter includes following one or more：It is discontinuous to receive cycle, discontinuous week Biasing of the starting subframe in system-frame, the Physical Downlink Control Channel to be detected since being originated subframe in phase Number of sub frames.

Alternatively, base station is received a kind of specific by being used for of sending of radio resource control RRC connection message The system information of business includes：Short transmission time interval TTI terminal is supported to receive for supporting short TTI The common radio resources configuration information of communication, the short TTI length is less than 1ms, the short TTI of support The common radio resources configuration information of communication includes following one or more：Downlink correlated channels can With bandwidth, up-link correlated channels available bandwidth, PDCCH in short TTI or positioned at short TTI In EPDCCH common configuration informations, the related common configuration information of PHICH in short TTI, PUCCH common configuration informations in short TTI, the PDSCH common configurations in short TTI Information, the PUSCH common configuration informations in short TTI are referred to for short TTI channel detection Signal SRS common configuration informations, uplink power control common configuration information.

The present invention also provides a kind of dispensing device of Downlink Control Information, is arranged at base station, including：

Scrambling module, is set to using predetermined Radio Network Temporary Identifier RNTI to physical down control Cyclic Redundancy Code CRC parts and physical down data channel in channel are scrambled；Wherein, it is described Physical down data channel after scrambling is carried supports a kind of system information of specific transactions for terminal；

First communication module, is set under the Physical Downlink Control Channel and the physics after scrambling Row data channel is sent to the terminal of one group of support specific transactions.

Alternatively, the scrambling module uses predetermined RNTI to the circulation in Physical Downlink Control Channel Redundant code CRC parts and physical down data channel carry out scrambling and referred to：Under physics after the scrambling It is described that physical down is controlled to believe when the system information that row data channel is carried is used for different specific transactions The predetermined wireless network that Cyclic Redundancy Code CRC parts and physical down data channel in road are scrambled Network temporary mark RNTI is different.

Alternatively, the first communication module is by the Physical Downlink Control Channel and the thing after scrambling The terminal that reason downstream data channel is sent to one group of support specific transactions refers to：Updated when base station is sent The specific transactions system information when, by the Physical Downlink Control Channel after scrambling and physical down number It is believed that road is sent in one or more of one group of discontinuous subframe subframe, described one group discontinuous Subframe is at least determined by following one or more parameters：It is discontinuous to receive cycle, the interior starting of discontinuous-cycle Biasing of the subframe in system-frame, since being originated subframe Physical Downlink Control Channel to be detected subframe Number.

Alternatively, it is described to be used to determine that the parameter of one group of discontinuous subframe is disappeared by base station by the way that RRC is special Breath by system broadcast message is sent to all ends before being sent to terminal or accessing terminal to network by base station End.

Alternatively, the scrambling module uses predetermined RNTI to the circulation in Physical Downlink Control Channel Redundant code CRC parts and physical down data channel carry out scrambling and referred to：The physical down control letter Road is PDCCH channels, and the physical down data channel is PDSCH channels, using a group RNTI is scrambled to the CRC parts in the PDCCH and the PDSCH, after the scrambling PDSCH channels carry and support the common radio resources of short transmission time interval TTI communication to match somebody with somebody confidence Breath, the short TTI length is less than 1ms, terminals of the described group of RNTI to the short TTI of support described in one group It is public.

Alternatively, the first communication module sends out the PDCCH after the scrambling and PDSCH The terminal for supporting short TTI is given to refer to：

Institute PDSCH after scrambling is sent using QPSK QPSK modulation systems.

Alternatively, it is described when described group of RNTI is the SI-RNTI for system broadcast information transmission PDSCH channels after being scrambled described in first communication module carry the public wireless money for supporting short TTI communications Source configuration information refers to：

Second communication module, is set to a kind of specific to supporting by radio resource control RRC connection message The terminal of business sends the system information related to the specific transactions, and the system information includes being used for really The relevant parameter for one group of discontinuous subframe that the fixed system information updates, the relevant parameter is included with next It is individual or multiple：It is discontinuous receive the cycle, biasing of the starting subframe in system-frame in discontinuous-cycle, from Starting subframe starts the number of sub frames of Physical Downlink Control Channel to be detected.

The present invention also provides a kind of reception device of Downlink Control Information, is arranged at a kind of specific transactions of support Terminal, including：

Detection module, is set to using predetermined Radio Network Temporary Identifier RNTI in physical down control Channel public search space is detected；

First receiving module, is set to work as the physical down detected using the predetermined RNTI scramblings During control channel, the physical down data channel that the Physical Downlink Control Channel is indicated is received；Wherein, The physical down data channel is scrambled by the predetermined RNTI；

Configuration module, is set to be obtained using the physical down data channel and supports a kind of specific transactions System information.

Alternatively, first receiving module receives the physical down that the Physical Downlink Control Channel is indicated Data channel refers to：The system information that physical down data channel after the scrambling is carried is used for different During specific transactions, under the Cyclic Redundancy Code CRC parts and physics in Physical Downlink Control Channel The predetermined Radio Network Temporary Identifier RNTI that row data channel is scrambled is different.

Alternatively, the detection module uses predetermined Radio Network Temporary Identifier RNTI in physical down Control channel public search space carries out detection and referred to：

Alternatively, it is described to be used to determine that the parameter of one group of discontinuous subframe passes through RRC specific messages by base station All terminals are sent to by system broadcast message by base station before being sent to terminal or accessing terminal to network.

Alternatively, the Physical Downlink Control Channel is PDCCH channels, the physical down data letter Road is PDSCH channels, and the configuration module is obtained using the PDSCH channels and supports the short transmission time The common radio resources configuration information of TTI communications is spaced, the short TTI length is less than 1ms, the branch Holding the common radio resources configuration information of short TTI communications includes following one or more：Downlink phase Close channel available wide, up-link correlated channels available bandwidth, PDCCH in short TTI or EPDCCH common configuration informations in short TTI, the PHICH in short TTI is related public Common configuration information, the PUCCH common configuration informations in short TTI, in short TTI PDSCH common configuration informations, the PUSCH common configuration informations in short TTI, for short TTI Sounding Reference Signal SRS common configuration informations, uplink power control common configuration information.

Alternatively, described device also includes：

Data channel processing module, is set to according to the common radio resources configuration information and positioned at short The dedicated control information carried on PDCCH in TTI, demodulation is located at the PDSCH data in short TTI Channel sends the PUSCH data channels being located in short TTI.

Second receiving module, is set to receive what base station was sent by radio resource control RRC connection message For a kind of system information of specific transactions, the system information includes being used to determine that the system information updates One group of discontinuous subframe relevant parameter, the relevant parameter include it is following one or more：Discontinuously It is the reception cycle, biasing of the starting subframe in system-frame in discontinuous-cycle, to be checked since being originated subframe Survey the number of sub frames of Physical Downlink Control Channel.

Compared to the prior art the present invention, has the advantages that：

Base station of the present invention can send corresponding system to the terminal of one group of support specific transactions as needed and believe Breath updates, it is to avoid the terminal power consumption problem brought when system information updates in existing LTE network, By just sending the system information of specific transactions after accessing terminal to network, existing LTE nets are it also avoid The system information of various specific transactions is ceaselessly periodically sent in network, base station wireless resource and energy is reduced Consumption is wasted, and improves the transmitting efficiency of system information.

In addition, the business for supporting short TTI communications, the present invention can also preferably support short TTI whole Hold the different demands to bandwidth, it is to avoid send the difference for multigroup PRB pair simultaneously in a sub- frame in Slow DCI, can also avoid sending slow DCI to downlink and uplink respectively, in addition, by public resource Distribution information is placed on PDSCH and sent, it is possible to use existing DCI format in standard, it is to avoid New DCI format is introduced in PDCCH.

Brief description of the drawings

Fig. 1 is the schematic diagram of one or more groups of PRB pairs of correlation technique；

Fig. 2 is a kind of flow chart of the sending method of Downlink Control Information of the embodiment of the present invention；

Fig. 3 is a kind of flow chart of the method for reseptance of Downlink Control Information of the embodiment of the present invention；

Fig. 4 is a kind of structural representation of the dispensing device of Downlink Control Information of the embodiment of the present invention；

Fig. 5 is a kind of structural representation of the reception device of Downlink Control Information of the embodiment of the present invention；

Fig. 6 detects for the short TTI of support of embodiment of the present invention terminal in one group of discontinuous subframe The schematic diagram of the PDCCH channels of STTI-RNTI scramblings；

Fig. 7 detects for the short TTI of support of embodiment of the present invention terminal in one group of discontinuous subframe The schematic diagram of the PDCCH channels of STTI-RNTI scramblings.

Fig. 8 gives that supports short TTI terminals transmission RRC connections to match somebody with somebody again to show for the base station of the embodiment of the present invention It is intended to.

Embodiment

To make the goal of the invention, technical scheme and beneficial effect of the present invention of greater clarity, with reference to Accompanying drawing is illustrated to embodiments of the invention, it is necessary to explanation is, in the case where not conflicting, this Shen Please in embodiment and embodiment in feature can mutually be combined.

As shown in Fig. 2 the embodiment of the present invention provides a kind of sending method of Downlink Control Information, it is applied to Base station, including：

A kind of system information of specific transactions is supported to be sent to the end of one group of support specific transactions terminal End.

The transmission of the embodiment of the present invention includes two ways：

Scheme one, using predetermined Radio Network Temporary Identifier RNTI in Physical Downlink Control Channel Cyclic Redundancy Code CRC parts and physical down data channel are scrambled；Wherein, the thing after the scrambling Reason downstream data channel is carried supports a kind of system information of specific transactions for terminal；

The Physical Downlink Control Channel after scrambling and the physical down data channel are sent to one group Support the terminal of the specific transactions.

Scheme two, by radio resource control RRC connection message to supporting a kind of terminal of specific transactions to send out The system information related to the specific transactions is sent, the system information includes being used to determine the system information The relevant parameter of the one group of discontinuous subframe updated, the relevant parameter includes following one or more：No Biasing of the starting subframe in system-frame in continuous reception cycle, discontinuous-cycle, since being originated subframe The number of sub frames of Physical Downlink Control Channel to be detected.

For scheme one, when sending the common radio resources configuration information, using predetermined RNTI pairs Cyclic Redundancy Code CRC parts and physical down data channel in Physical Downlink Control Channel are scrambled Including：The system information that physical down data channel after the scrambling is carried is used for different specific transactions When, the Cyclic Redundancy Code CRC parts and physical down data in Physical Downlink Control Channel is believed The predetermined Radio Network Temporary Identifier RNTI that road is scrambled is different.

The Physical Downlink Control Channel after scrambling and the physical down data channel are sent to one group Supporting the terminal of the specific transactions includes：When base station sends the system information of the specific transactions updated When, by the Physical Downlink Control Channel after scrambling and physical down data channel in one group of discontinuous subframe One or more of send in subframe, one group of discontinuous subframe is at least by following one or more Parameter is determined：It is discontinuous receive the cycle, biasing of the starting subframe in system-frame in discontinuous-cycle, from Starting subframe starts the number of sub frames of Physical Downlink Control Channel to be detected.

It is described to be used to determine that the parameter of one group of discontinuous subframe is sent by base station by RRC specific messages To being sent to all terminals by system broadcast message by base station before terminal or accessing terminal to network.

Using predetermined RNTI to the Cyclic Redundancy Code CRC parts in Physical Downlink Control Channel and physics Downstream data channel, which carries out scrambling, to be included：The Physical Downlink Control Channel is PDCCH channels, described Physical down data channel is PDSCH channels, using a group RNTI in the PDCCH CRC parts and the PDSCH are scrambled, and the PDSCH channels after the scrambling, which are carried, supports short The common radio resources configuration information of Transmission Time Interval TTI communications, the short TTI length is less than 1ms, Described group of RNTI is public to the terminal that short TTI is supported described in one group.

The common radio resources configuration information for supporting short TTI communications includes following one or more： Downlink correlated channels available bandwidth, up-link correlated channels available bandwidth, in short TTI PDCCH or the EPDCCH common configuration informations in short TTI, the PHICH in short TTI Related common configuration information, the PUCCH common configuration informations in short TTI, in short TTI PDSCH common configuration informations, the PUSCH common configuration informations in short TTI, for short TTI Sounding Reference Signal SRS common configuration informations, uplink power control common configuration information.

The downlink correlated channels available bandwidth is one or more groups of PRB pairs, the up-link phase It is one or more groups of PRB pairs to close channel available wide, and one group of PRB pair includes one or more PRB It is right.

When described group of RNTI for it is non-for system broadcast information send SI-RNTI when, after the scrambling PDSCH channels carry and support the common radio resources configuration information of short TTI communication to include：

The public of the short TTI communications of the support is carried by the PDSCH predetermined RRC informations sent Wireless resource configuration, the predetermined RRC information is not the system information broadcasted (System Information Message)。

The PDCCH and the PDSCH after scrambling is sent to the terminal of the short TTI of support Including：

Institute PDSCH after scrambling is sent using QPSK QPSK modulation systems.

When described group of RNTI is the SI-RNTI for system broadcast information transmission, after the scrambling PDSCH channels, which are carried, supports the common radio resources configuration information of short TTI communications to include：

Many SIB can be included in system information, wherein SIB2 is one of those.It is of the invention real Apply example and send these common radio resources with confidence using one new SIB of increase, rather than in SIB2 Breath.

When employing mode two, by radio resource control RRC connection message to supporting a kind of specific transactions Terminal send the system information related to the specific transactions and include：Base station is between the support short transmission time The common radio resources configuration information for supporting short TTI communications, the short TTI length are sent every TTI terminal Degree is less than 1ms, and the common radio resources configuration information of the short TTI communications of support includes following one Or it is multinomial：Downlink correlated channels available bandwidth, up-link correlated channels available bandwidth, positioned at short PDCCH in TTI or the EPDCCH common configuration informations in short TTI, positioned at short TTI In PHICH common configuration informations, the PUCCH common configuration informations in short TTI, positioned at short PDSCH common configuration informations in TTI, the PUSCH common configuration informations in short TTI, pin To short TTI Sounding Reference Signal SRS common configuration informations, uplink power control common configuration letter Breath.

For scheme one, when base station can be in each subframe for supporting short TTI terminal sends support short During the wireless public resource configuration information of TTI communications, terminal needs to have detected whether accordingly in each subframe STTI-RNTI scrambling PDCCH channels send.However, because part needs fast-changing public affairs Resource allocation information, need not change also and in each subframe altogether, therefore terminal can be using not connecting Continued access, which is received, reduces the detection to the STTI-RNTI PDCCH channels scrambled, i.e., specific one or Periodically detect whether that the channel is sent in multiple continuous subframes, so that the electricity for reducing terminal disappears Consumption.Base station can also support that the correlation of short TTI communications is wireless public by repeating to send in multiple continuous subframes Common resource allocation information, so that information is received correctly.In addition, terminal is in order to recognize base station Since which subframe can send STTI-RNTI scrambling PDCCH channels, in addition it is also necessary to know not Deviation post of the continuous starting subframe for receiving the cycle in system-frame.

For part public resource configuration information, it may be necessary to relatively quickly update, such as SPDSCH downlink available bandwidth, the up-link for sPUSCH and sPUCCH can use Bandwidth, the related common configuration information in sPHICH parts etc., and other information may and need not be fast The dynamic change of speed, the related common configuration informations of SRS such as communicated for short TTI, uplink power control Related common configuration information etc.., can be with for different demands of the public resource configuration information to renewal speed Using the group RNTI STTI-RNTI different from SI-RNTI or based on the introducing in system information The mode of new different SIB2 system information block, sends for short to short TTI terminal broadcast is supported The related common control information of TTI communications.

In existing standard, sent out based on the 1ms TTI common radio resources configuration informations communicated in SIB2 Send, if the common radio resources that need not often change for supporting the part of short TTI communications are configured Information is also placed in SIB2 and sent, then relevant information has identical hair with original information in SIB2 The cycle is sent, and for supporting the common radio resources configuration information of short TTI communications to have lower priority, There need not be the repetition period as message in existing SIB2, therefore relevant information is individually placed on one Sent in individual SIB, with more flexibilities.

If the part common configuration information for needing relatively quickly to update is placed in system information Send, all terminals more frequently reception system message change in cell will be brought, brought more to terminal Big electric quantity consumption.Accordingly, it would be desirable to new group RNTI be introduced, for being sent to the short TTI terminals of support This part messages.

As the common radio resources configuration information for supporting short TTI communications, due to not being terminal access The necessary information of LTE system, sends, it is to avoid system accordingly it is also possible to not be placed in system information Broadcast ceaselessly repeats to send.To supporting short TTI terminals to carry out RRC connections timing again, disappear at this Relevant configuration information is sent to terminal in breath.

As shown in figure 3, the embodiment of the present invention also provides a kind of method of reseptance of Downlink Control Information, application In the terminal for supporting short transmission time interval TTI, including：

Receive the system information for the specific transactions that base station is sent.

The reception of the embodiment of the present invention includes two ways：

It is scheme one, public in Physical Downlink Control Channel using predetermined Radio Network Temporary Identifier RNTI Search space is detected, letter is controlled using the physical down of the predetermined RNTI scramblings when detecting During road, the physical down data channel that the Physical Downlink Control Channel is indicated is received；Wherein, the thing Downstream data channel is managed to be scrambled by the predetermined RNTI；

Scheme two, to receive base station a kind of specific by being used for of sending of radio resource control RRC connection message The system information of business, the system information include be used for determine the system information update one group it is discontinuous The relevant parameter of subframe, the relevant parameter includes following one or more：It is discontinuous to receive cycle, no Biasing of the starting subframe in system-frame, the physical down control to be detected since being originated subframe in continuous cycles The number of sub frames of channel processed.

For scheme one, using predetermined Radio Network Temporary Identifier RNTI in Physical Downlink Control Channel Public search space is detected, when the physical down control for detecting the use predetermined RNTI scramblings During channel processed, receiving the physical down data channel of the Physical Downlink Control Channel instruction includes：It is described It is described right when the system information that physical down data channel after scrambling is carried is used for different specific transactions Cyclic Redundancy Code CRC parts and physical down data channel in Physical Downlink Control Channel are scrambled Predetermined Radio Network Temporary Identifier RNTI it is different.

Using predetermined Radio Network Temporary Identifier RNTI in Physical Downlink Control Channel public search space Carrying out detection includes：

One group of discontinuous subframe is at least determined by following one or more parameters：It is discontinuous to receive week It is phase, biasing of the starting subframe in system-frame in discontinuous-cycle, to be detected since being originated subframe PDCCH number of sub frames.

It is described to be used to determine that the parameter of one group of discontinuous subframe is sent to by base station by RRC specific messages All terminals are sent to by system broadcast message by base station before terminal or accessing terminal to network.

It is PDCCH channels, the physical down data for Physical Downlink Control Channel described in scheme one Channel is PDSCH channels, is obtained using the PDSCH channels and supports short transmission time interval TTI The common radio resources configuration information of communication, the short TTI length is less than 1ms.

For scheme two, receiving base station by what radio resource control RRC connection message was sent is used for one kind The system information of specific transactions includes：Short transmission time interval TTI terminal is supported to receive for supporting short The common radio resources configuration information of TTI communications, the short TTI length is less than 1ms.

Supported described in scheme one and scheme two short TTI communication common radio resources configuration information include with Under one or more：Downlink correlated channels available bandwidth, up-link correlated channels available bandwidth, Downlink correlated channels available bandwidth, up-link correlated channels available bandwidth, in short TTI PDCCH or the EPDCCH common configuration informations in short TTI, the PHICH in short TTI Related common configuration information, the PUCCH common configuration informations in short TTI, in short TTI PDSCH common configuration informations, the PUSCH common configuration informations in short TTI, for short TTI Sounding Reference Signal SRS common configuration informations, uplink power control common configuration information.

Method also includes described in scheme one：

As shown in figure 4, the embodiment of the present invention also provides a kind of dispensing device of Downlink Control Information, bag Include：

The scrambling module is using predetermined RNTI to the Cyclic Redundancy Code in Physical Downlink Control Channel CRC parts and physical down data channel carry out scrambling and referred to：Physical down data after the scrambling It is described in Physical Downlink Control Channel when the system information that channel is carried is used for different specific transactions The predetermined wireless network that Cyclic Redundancy Code CRC parts and physical down data channel are scrambled is interim Identify RNTI different.

The first communication module is by the Physical Downlink Control Channel after scrambling and the physical down number It is believed that the terminal that road is sent to one group of support specific transactions refers to：When base station sends the spy updated When determining the system information of business, the Physical Downlink Control Channel after scrambling and physical down data channel are existed Sent in one or more of one group of discontinuous subframe subframe, one group of discontinuous subframe is at least Determined by following one or more parameters：Starting subframe is being in discontinuous reception cycle, discontinuous-cycle Unite frame in biasing, since originate subframe Physical Downlink Control Channel to be detected number of sub frames.

The scrambling module is using predetermined RNTI to the Cyclic Redundancy Code in Physical Downlink Control Channel CRC parts and physical down data channel carry out scrambling and referred to：The Physical Downlink Control Channel is PDCCH channels, the physical down data channel is PDSCH channels, using RNTI pairs of a group CRC parts and the PDSCH in the PDCCH are scrambled, the PDSCH after the scrambling Channel carries the common radio resources configuration information for supporting short transmission time interval TTI communications, described short TTI length is less than 1ms, and described group of RNTI is public to the terminal that short TTI is supported described in one group.

The PDCCH and the PDSCH after scrambling is sent to described by the first communication module Short TTI terminal is supported to refer to：

Institute PDSCH after scrambling is sent using QPSK QPSK modulation systems.

When described group of RNTI is the SI-RNTI for system broadcast information transmission, first communication PDSCH channels after being scrambled described in module, which are carried, supports the common radio resources of short TTI communications to match somebody with somebody confidence Breath refers to：

The embodiment of the present invention also provides a kind of dispensing device of Downlink Control Information, is arranged at base station, bag Include：

As shown in figure 5, the embodiment of the present invention also provides a kind of reception device of Downlink Control Information, support A kind of terminal of specific transactions, including：

First receiving module receives the physical down data channel that the Physical Downlink Control Channel is indicated Refer to：The system information that physical down data channel after the scrambling is carried is used for different specific transactions When, the Cyclic Redundancy Code CRC parts and physical down data in Physical Downlink Control Channel is believed The predetermined Radio Network Temporary Identifier RNTI that road is scrambled is different.

The detection module is using predetermined Radio Network Temporary Identifier RNTI in Physical Downlink Control Channel Public search space carries out detection and referred to：

The Physical Downlink Control Channel is PDCCH channels, and the physical down data channel is PDSCH channels, the configuration module is obtained using the PDSCH channels and supports short transmission time interval The common radio resources configuration information of TTI communications, the short TTI length is less than 1ms, and the support is short The common radio resources configuration information of TTI communications includes following one or more：Downlink correlation letter Road available bandwidth, up-link correlated channels available bandwidth or is located at PDCCH in short TTI EPDCCH common configuration informations in short TTI, PHICH in short TTI is related public to be matched somebody with somebody Confidence ceases, the PUCCH common configuration informations in short TTI, the PDSCH in short TTI Common configuration information, the PUSCH common configuration informations in short TTI, for short TTI channel Detection reference signal SRS common configuration informations, uplink power control common configuration information.

Described device also includes：

The embodiment of the present invention also provides a kind of reception device of Downlink Control Information, is arranged at support a kind of The terminal of specific transactions, including：

Embodiment 1

As shown in table 3, according to currently supporting short TTI terminals to access situation, when multigroup PRB pair need by In use, need to send the position of multigroup PRB pair in PDCCH, and when uplink and downlink are all needed When carrying out configuring multigroup PRB pair, such as to descending sPDSCH channels and up sPUSCH letter Road distribution is all, using 4 groups of PRB pairs, at this moment to carry out related public resource configuration using PDCCH channels It is improper.Therefore, a new RRC information is introduced, for sending these common radio resources with confidence Breath.This new RRC information is sent on PDSCH channels, using the scrambler different from SI-RNTI Scrambled, STTI-RNTI as shown in table 3, STTI-RNTI is a group RNTI, to one Group supports short TTI terminal to share.

Table 3

Embodiment 2

After the terminal for supporting D2D is linked into base station, base station determines whether one group of support as needed D2D terminal is sent using the D2D-RNTI physical down data channels scrambled is used for D2D after updating The system information of communication.When some support D2D base station below cell in do not have D2D terminals access When, base station need not send the system information that D2D communications are carried out for D2D terminals.Or work as cell When the terminal of middle support D2D communication all releases Radio Link, base station the cell also without for D2D terminals send the system information communicated for D2D.D2D-RNTI as shown in table 4, D2D-RNTI is a group RNTI, and the terminal to one group of support D2D communication is shared.

Embodiment 3

One is given in Fig. 6 supports short TTI terminal to be detected whether in specific subframe The schematic diagram that the PDCCH and PDSCH channels of STTI-RNTI scramblings are sent.Terminal is not in Fig. 6 The continuous reception cycle is 10 subframes, wherein there is 3 subframes to need progress to detect whether STTI-RNTI The PDCCH control channels of scrambling, starting subframe is biased to 0 in a system-frame.In subframe k, K+1 and k+2 terminals need whether detection base station utilizes STTI-RNTI to PDCCH in these subframes Scrambled with PDSCH, have sent common radio resources configuration information.Similar, in subframe K+10, k+11, k+12, k+20, k+21, k+22 and k+30, k+31, k+32 terminals are also needed The other positions provided in the detection of correlation, figure are done, terminal need not detect whether STTI-RNTI The PDCCH control channels of scrambling, for reducing electric quantity consumption.Each discontinuous reception week in Fig. 6 Phase has 3 subframe base stations to decide whether the RRC information profit to carrying public resource configuration as needed Carry out repeating transmission with STTI-RNTI scramblings.

Another is given in Fig. 7 supports short TTI terminal to be detected whether in specific subframe The schematic diagram that the PDCCH and PDSCH channels of STTI-RNTI scramblings are sent.Terminal is not in Fig. 7 The continuous reception cycle is 20 subframes, wherein there is 4 subframes to need progress to detect whether STTI-RNTI The PDCCH control channels of scrambling, starting subframe is biased to 2 in a system-frame.In subframe k, Terminal needs whether detection base station utilizes STTI-RNTI in these subframes on k+1, k+2 and k+3 PDCCH and PDSCH are scrambled, common radio resources configuration information is have sent.Similar, Terminal is also required to do to provide in the detection of correlation, figure on subframe k+20, k+21, k+22 and k+23 Other positions, terminal need not detect whether STTI-RNTI scrambling PDCCH control channels, For reducing electric quantity consumption.Each discontinuous reception sub- frame in cycle T=20 in Fig. 7, base station can To decide whether the RRC information to carrying public resource configuration in 4 subframes in S1 as needed Carry out repeating transmission using STTI-RNTI scramblings.

In Fig. 6 and Fig. 7 embodiment, for using STTI-RNTI scramble PDCCH and PDSCH channels, PDCCH channels are used to send corresponding PDSCH using DCI format 1C or 1A The control information of channel, PDSCH channels modulate progress data transmission using QPSK modes.Wherein, DCI format 1C do not carry the RV information for repeating to send directly, and RV information is hidden by subframe numbers The determination of formula, DCI format 1A carry the RV information for repeating to send.Terminal is according to STTI-RNTI The related common radio resources of the short TTI communications of support received on the PDSCH channels of scrambling match somebody with somebody confidence The dedicated control information carried on breath and the sPDCCH that is sent in short TTI is used to demodulate short sPDSCH Data channel sends sPUCCH data channels.

Whether 4 continuous subframes on S1 or S2 in the figure 7 send the terminal transmission to short TTI The related common radio resources configuration information for supporting short TTI communications is also to be determined by base station.Base station root According to terminal access situation and Radio Resource utilization power in system, whether need to readjust for short really The related common radio resources configuration information of TTI communications, if necessary to adjust, then in S1 or S2 Relevant configuration information is sent, if need not adjust, base station can not send relevant configuration information.Support It is the PDCCH for having STTI-RNTI to scramble that short TTI terminal is detected in the subframe in S1 and S2, If do not detected, terminal will still use original wireless public resource configuration information, if terminal Corresponding PDCCH is detected, terminal will store new common radio resources configuration information and be used for SPDSCH data channel demodulations.

Embodiment 4

Base station is to supporting short TTI terminal to send RRC connections and match somebody with somebody again in Fig. 8, in the reallocation message, Related common radio resources configuration information including supporting short TTI communications, wherein there is sPDSCH channels can Multigroup PRB pair, the available multigroup PRB pair of sPUSCH channels, sPUCCH channels are available The related common configuration information of multigroup PRB pair, sPDCCH or sEPDCCH, sPHICH correlations are public Configuration information, sPUCCH correlation common configuration informations, sPDSCH correlation common configuration informations, sPUSCH Related common configuration information, for the short TTI related common configuration informations of SRS, uplink power control phase Common configuration information is closed, one group is used for the related common radio resources configuration that terminal-pair supports short TTI communications The control parameter that information is discontinuously received.One group is used for terminal-pair and supports that the correlation of short TTI communications is public The control parameter that wireless resource configuration is discontinuously received altogether further includes discontinuous reception week Since biasing of the starting subframe in a system-frame, need inspection originating subframe in phase, discontinuous-cycle Survey correlation PDCCH number of sub frames.Especially, the related common radio resources of short TTI communications are supported to match somebody with somebody Confidence ceases similar for the common radio resources configuration information of 1ms TTI communications with current SIB2, no Some variations will be made for the short TTI physical channel situations communicated by crossing, and be joined for the control discontinuously received Number, as shown in fig. 7, it is 20 subframes discontinuously to receive the cycle, the interior starting subframe of discontinuous-cycle is one 2 are biased in individual system-frame, since the number of sub frames for needing to detect correlation PDCCH originating subframe be 4.

Although disclosed embodiment is as above, its content is only to facilitate understand the present invention Technical scheme and the embodiment that uses, be not intended to limit the present invention.Technology belonging to any present invention Technical staff in field, can be with the premise of disclosed core technology scheme is not departed from Any modification and change, but the protection domain that the present invention is limited are made in the form and details of implementation, still The scope that must be limited by appended claims is defined.

Claims

1. a kind of sending method of Downlink Control Information, it is characterised in that applied to base station, including：

Using predetermined Radio Network Temporary Identifier RNTI to the cyclic redundancy in Physical Downlink Control Channel Code CRC parts and physical down data channel are scrambled；Wherein, the physical down number after the scrambling It is believed that road is carried supports a kind of system information of specific transactions for terminal；

2. the method as described in claim 1, it is characterised in that：Using predetermined RNTI under physics Cyclic Redundancy Code CRC parts and physical down data channel in row control channel, which carry out scrambling, to be included：Institute It is described when stating the system information of the physical down data channel carrying after scrambling for different specific transactions Cyclic Redundancy Code CRC parts in Physical Downlink Control Channel and physical down data channel are added The predetermined Radio Network Temporary Identifier RNTI disturbed is different.

3. the method as described in claim 1, it is characterised in that：By the physical down control after scrambling The terminal that channel processed and the physical down data channel are sent to one group of support specific transactions includes： When base station sends the system information of the specific transactions updated, the physical down after scrambling is controlled to believe Road and physical down data channel are sent in one or more of one group of discontinuous subframe subframe, institute One group of discontinuous subframe is stated at least to be determined by following one or more parameters：It is discontinuous to receive cycle, no Biasing of the starting subframe in system-frame, the physical down control to be detected since being originated subframe in continuous cycles The number of sub frames of channel processed.

4. method as claimed in claim 3, it is characterised in that：It is described discontinuous for one group of determination The parameter of subframe is sent to before terminal or accessing terminal to network by base by base station by RRC specific messages Stand and all terminals are sent to by system broadcast message.

5. the method as described in claim 1, it is characterised in that：Using predetermined RNTI under physics Cyclic Redundancy Code CRC parts and physical down data channel in row control channel, which carry out scrambling, to be included：Institute Physical Downlink Control Channel is stated for PDCCH channels, the physical down data channel is believed for PDSCH Road, is added using a group RNTI to the CRC parts in the PDCCH and the PDSCH Disturb, the PDSCH channels after the scrambling carry the public nothing for supporting short transmission time interval TTI communications Line resource allocation information, the short TTI length is less than 1ms, and described group of RNTI described in one group to supporting Short TTI terminal is public.

6. method as claimed in claim 5, it is characterised in that：The public affairs for supporting short TTI to communicate Wireless resource configuration includes following one or more altogether：Downlink correlated channels available bandwidth, Up-link correlated channels available bandwidth, PDCCH in short TTI or in short TTI EPDCCH common configuration informations, the related common configuration informations of PHICH in short TTI, are located at PUCCH common configuration informations in short TTI, the PDSCH common configuration informations in short TTI, PUSCH common configuration informations in short TTI, for short TTI Sounding Reference Signal SRS Common configuration information, uplink power control common configuration information.

7. method as claimed in claim 6, it is characterised in that：The downlink correlated channels can use Bandwidth is one or more groups of Physical Resource Block PRB pairs, and the up-link correlated channels available bandwidth is one Group or multigroup PRB pair, one group of PRB pair include one or more PRB pairs.

8. method as claimed in claim 5, it is characterised in that as described group of RNTI to be non-for being During the SI-RNTI that broadcast message of uniting is sent, the PDSCH channels after the scrambling, which are carried, supports short TTI The common radio resources configuration information of communication includes：

9. method as claimed in claim 8, it is characterised in that by the PDCCH after scrambling and The PDSCH, which is sent to the terminal for supporting short TTI, to be included：

Institute PDSCH after scrambling is sent using QPSK QPSK modulation systems.

10. method as claimed in claim 4, it is characterised in that when described group of RNTI is for being During the SI-RNTI that broadcast message of uniting is sent, the PDSCH channels after the scrambling, which are carried, supports short TTI The common radio resources configuration information of communication includes：

11. a kind of sending method of Downlink Control Information, it is characterised in that applied to base station, including：

Sent and institute to a kind of terminal of specific transactions of support by radio resource control RRC connection message The related system information of specific transactions is stated, the system information includes being used to determine what the system information updated The relevant parameter of one group of discontinuous subframe, the relevant parameter includes following one or more：Discontinuously connect It is the receipts cycle, biasing of the starting subframe in system-frame in discontinuous-cycle, to be detected since being originated subframe The number of sub frames of Physical Downlink Control Channel.

12. method as claimed in claim 11, it is characterised in that：Pass through radio resource control RRC Connection message sends the system information bag related to the specific transactions to a kind of terminal of specific transactions of support Include：The public wireless of short TTI communications is supported to supporting short transmission time interval TTI terminal to send in base station Resource allocation information, the short TTI length is less than 1ms, the public wireless of the short TTI communications of support Resource allocation information includes following one or more：Downlink correlated channels available bandwidth, uplink Road correlated channels available bandwidth, the PDCCH in short TTI or the EPDCCH in short TTI Common configuration information, the PHICH common configuration informations in short TTI, in short TTI PUCCH common configuration informations, the PDSCH common configuration informations in short TTI, positioned at short TTI In PUSCH common configuration informations, for short TTI Sounding Reference Signal SRS common configurations Information, uplink power control common configuration information.

13. method as claimed in claim 12, it is characterised in that：The downlink correlated channels Available bandwidth is one or more groups of Physical Resource Block PRB pairs, the up-link correlated channels available bandwidth It is one or more groups of PRB pairs, one group of PRB pair includes one or more PRB pairs.

14. a kind of method of reseptance of Downlink Control Information, it is characterised in that a kind of specific applied to supporting The terminal of business, including：

15. method as claimed in claim 14, it is characterised in that：It is interim using predetermined wireless network Mark RNTI is detected in Physical Downlink Control Channel public search space, uses described when detecting During the Physical Downlink Control Channel of predetermined RNTI scramblings, receive the Physical Downlink Control Channel and indicate Physical down data channel include：The system information that physical down data channel after the scrambling is carried During for different specific transactions, the Cyclic Redundancy Code CRC parts in Physical Downlink Control Channel It is different with the predetermined Radio Network Temporary Identifier RNTI that physical down data channel is scrambled.

16. method as claimed in claim 14, it is characterised in that：It is interim using predetermined wireless network Mark RNTI carries out detection in Physical Downlink Control Channel public search space to be included：

17. method as claimed in claim 16, it is characterised in that：One group of discontinuous subframe is extremely It is few to be determined by following one or more parameters：Starting subframe exists in discontinuous reception cycle, discontinuous-cycle Biasing in system-frame, since being originated subframe PDCCH to be detected number of sub frames.

18. method as claimed in claim 17, it is characterised in that：It is described discontinuous for one group of determination The parameter of subframe is sent to before terminal or accessing terminal to network by base by base station by RRC specific messages Stand and all terminals are sent to by system broadcast message.

19. method as claimed in claim 14, it is characterised in that：The Physical Downlink Control Channel For PDCCH channels, the physical down data channel is PDSCH channels, utilizes the PDSCH Channel obtains the common radio resources configuration information for supporting short transmission time interval TTI communications, the short TTI Length is less than 1ms, and the common radio resources configuration information of the short TTI communications of support includes following one Item is multinomial：Downlink correlated channels available bandwidth, up-link correlated channels available bandwidth, is located at PDCCH in short TTI or the EPDCCH common configuration informations in short TTI, positioned at short TTI In the related common configuration informations of PHICH, the PUCCH common configuration informations in short TTI, position PDSCH common configuration informations in short TTI, the PUSCH common configurations letter in short TTI Breath, for short TTI Sounding Reference Signal SRS common configuration informations, uplink power control is public Configuration information.

20. method as claimed in claim 19, it is characterised in that：The downlink correlated channels Available bandwidth is one or more groups of PRB pairs, and the up-link correlated channels available bandwidth is one group or many Group PRB pair, one group of PRB pair includes one or more PRB pairs.

21. method as claimed in claim 19, it is characterised in that：Also include：

22. a kind of method of reseptance of Downlink Control Information, it is characterised in that a kind of specific applied to supporting The terminal of business, including：

23. method as claimed in claim 22, it is characterised in that：Receive base station and pass through Radio Resource What control RRC connection messages were sent, which is used for a kind of system information of specific transactions, includes：Support short transmission Time interval TTI terminal receives the common radio resources configuration information for supporting short TTI communications, institute Short TTI length is stated less than 1ms, the common radio resources configuration information of the short TTI communications of support includes Following one or more：Downlink correlated channels available bandwidth, up-link correlated channels can use band Width, the PDCCH in short TTI or the EPDCCH common configuration informations in short TTI, position The related common configuration informations of PHICH in short TTI, the PUCCH common configurations in short TTI Information, the PDSCH common configuration informations in short TTI, the PUSCH in short TTI is public Common configuration information, for short TTI Sounding Reference Signal SRS common configuration informations, ascending power Control common configuration information.

24. method as claimed in claim 23, it is characterised in that：The downlink correlated channels Available bandwidth is one or more groups of Physical Resource Block PRB pairs, the up-link correlated channels available bandwidth It is one or more groups of PRB pairs, one group of PRB pair includes one or more PRB pairs.

25. a kind of dispensing device of Downlink Control Information, it is characterised in that be arranged at base station, including：

26. device as claimed in claim 25, it is characterised in that：The scrambling module is using predetermined RNTI in Physical Downlink Control Channel Cyclic Redundancy Code CRC part and physical down data channel Scrambling is carried out to refer to：The system information that physical down data channel after the scrambling is carried is used for different During specific transactions, under the Cyclic Redundancy Code CRC parts and physics in Physical Downlink Control Channel The predetermined Radio Network Temporary Identifier RNTI that row data channel is scrambled is different.

27. device as claimed in claim 25, it is characterised in that：The first communication module will add The Physical Downlink Control Channel and the physical down data channel after disturbing are sent to described in one group of support The terminal of specific transactions refers to：When base station sends the system information of the specific transactions updated, it will add One in one group of discontinuous subframe of Physical Downlink Control Channel and physical down data channel after disturbing Or sent in multiple subframes, one group of discontinuous subframe is at least true by following one or more parameters It is fixed：It is discontinuous to receive cycle, biasing of the starting subframe in system-frame in discontinuous-cycle, from starting Frame starts the number of sub frames of Physical Downlink Control Channel to be detected.

28. device as claimed in claim 27, it is characterised in that：It is described not connect for determining one group The parameter of continuous subframe is sent to before terminal or accessing terminal to network by base station by RRC specific messages All terminals are sent to by system broadcast message by base station.

29. device as claimed in claim 25, it is characterised in that：The scrambling module is using predetermined RNTI in Physical Downlink Control Channel Cyclic Redundancy Code CRC part and physical down data channel Scrambling is carried out to refer to：The Physical Downlink Control Channel is PDCCH channels, the physical down data Channel is PDSCH channels, using a group RNTI to the CRC parts in the PDCCH and institute State PDSCH to be scrambled, the PDSCH channels after the scrambling, which are carried, supports short transmission time interval The common radio resources configuration information of TTI communications, the short TTI length is less than 1ms, described group of RNTI It is public to the terminal that short TTI is supported described in one group.

30. device as claimed in claim 29, it is characterised in that the first communication module will add The PDCCH and the PDSCH after disturbing are sent to the terminal for supporting short TTI and referred to：

Institute PDSCH after scrambling is sent using QPSK QPSK modulation systems.

31. device as claimed in claim 29, it is characterised in that when described group of RNTI is for being During the SI-RNTI that broadcast message of uniting is sent, the PDSCH letters after being scrambled described in the first communication module Road, which is carried, supports the common radio resources configuration information of short TTI communications to refer to：

32. a kind of dispensing device of Downlink Control Information, it is characterised in that be arranged at base station, including：

33. a kind of reception device of Downlink Control Information, it is characterised in that be arranged at support a kind of specific The terminal of business, including：

34. device as claimed in claim 33, it is characterised in that：First receiving module is received The physical down data channel that the Physical Downlink Control Channel is indicated refers to：Under physics after the scrambling It is described that physical down is controlled to believe when the system information that row data channel is carried is used for different specific transactions The predetermined wireless network that Cyclic Redundancy Code CRC parts and physical down data channel in road are scrambled Network temporary mark RNTI is different.

35. device as claimed in claim 33, it is characterised in that：The detection module is using predetermined Radio Network Temporary Identifier RNTI Physical Downlink Control Channel public search space carry out detection be Refer to：

36. device as claimed in claim 35, the parameter for being used to determine one group of discontinuous subframe System is passed through by base station before being sent to terminal or accessing terminal to network by RRC specific messages by base station Broadcast message is sent to all terminals.

37. device as claimed in claim 33, it is characterised in that：The Physical Downlink Control Channel For PDCCH channels, the physical down data channel is PDSCH channels, the configuration module profit Obtained with the PDSCH channels and support the common radio resources of short transmission time interval TTI communications to configure Information, the short TTI length is less than 1ms, the common radio resources configuration of the short TTI communications of support Information includes following one or more：Downlink correlated channels available bandwidth, up-link correlation letter Road available bandwidth, the PDCCH in short TTI or the EPDCCH common configurations in short TTI Information, the related common configuration informations of PHICH in short TTI, the PUCCH in short TTI Common configuration information, the PDSCH common configuration informations in short TTI, in short TTI PUSCH common configuration informations, the Sounding Reference Signal SRS common configurations for short TTI are believed Breath, uplink power control common configuration information.

38. device as claimed in claim 37, it is characterised in that：Also include：

39. a kind of reception device of Downlink Control Information, it is characterised in that be arranged at support a kind of specific The terminal of business, including：