CN103796315B

CN103796315B - The Physical Resource Block configuration method and device of user equipment specific search space

Info

Publication number: CN103796315B
Application number: CN201210433467.6A
Authority: CN
Inventors: 苟伟; 戴博; 夏树强
Original assignee: Nanjing ZTE New Software Co Ltd
Current assignee: ZTE Corp
Priority date: 2012-11-02
Filing date: 2012-11-02
Publication date: 2018-12-11
Anticipated expiration: 2032-11-02
Also published as: CN103796315A

Abstract

The present invention provides a kind of Physical Resource Block configuration method of user equipment specific search space and devices.It is related to mobile communication field；Solve the problems, such as that existing PRB pair configuration method influences system reliability.This method comprises: system side apparatus is configured to indicate that the information of the PRB pair position of default USS in the downstream message msg2 of random access；The msg2 is sent to UE side apparatus.Technical solution provided by the invention realizes the configuration that the PRB pair position of USS is completed by the downstream message in random access procedure suitable for LTE system.

Description

The Physical Resource Block configuration method and device of user equipment specific search space

Technical field

The present invention relates to mobile communication fields more particularly to a kind of Physical Resource Block of user equipment specific search space to match Set method and apparatus.

Background technique

Development with Mobile Communication Industry and the continuous growth to mobile data services demand, people are to mobile logical The requirement of the rate and service quality (Qos) of letter is higher and higher, and then in 3G (Third Generation) Moblie (3G), there are no extensive quotient With before, the research-and-development activity to next generation mobile communication system is just had begun, wherein comparing typically third For long term evolution (LTE, Long Term Evolution, long term evolution) project of partner program (3GPP) starting, LTE The available maximum spectrum bandwidth of system is 20MHz (megahertz).With the further evolution of network, evolution LTE (LTE-A) makees For the evolution system of LTE, the up to spectral bandwidth of 100MHz can be provided, supports more flexible higher-quality communication, simultaneously Lte-a system has good backwards compatibility.There are multiple component carrier (CC, component in lte-a system Carrier), a LTE terminal can only operate on the CC of some backward compatibility, and the stronger LTE-A terminal of ability can be with It is transmitted on multiple CC simultaneously.Realize that data are transmitted and received simultaneously to the terminal of LTE-A in multiple component carriers, from And achieve the purpose that promote bandwidth.The technology is referred to as multi-carrier polymerizing technology.

In research at this stage, on the basis of multi-carrier polymerizing technology, the LTE R11 stage utilizes frequency spectrum resource Rate, the AF panel aspect between network energy-saving and cell propose new demand.In order to realize the purpose, it mentions at present New carrier wave (new carrier type, abbreviation NCT) is gone out, has been applied by means of carrier aggregation technology, new carrier wave has one Salient feature is exactly that can apply more new technologies wherein without the concern for backwards compatibility in design.For example, At present in LTE R11 for the definition of new carrier wave be need at least one compatible carrier wave match operation (also referred to as with one it is simultaneous Hold carrier wave and carry out the operation of carrier wave polymerization methods), do not configure the cell reference signals (Cell- of LTE R8 in new carrier wave Specific reference signals, abbreviation CRS), to avoid adjacent cell in the serious CRS interference of cell edge, especially It is the CRS interference under HetNet scene between macrocell and Microcell.

Further, since the progress of LTE R11 is slower, the mark that NCT cannot be completed in timing node is finally considered Quasi- work, so just NCT technology correlative study is postponed till in LTE R12, the content having agreed in LTE R11 is still connect By.The standardization effort of LTE R12 starts not yet at present, has had more company to think, in LTE R12, has not only wanted Continue the NCT of research LTE R11, it is also necessary to further increase other NCT technologies, such as propose independent operation NCT (standalone NCT) has independent operation ability.For the NCT being different from LTE R11, due to the NCT in LTE R11 A backward compatibility carrier wave is needed to configure, so referred to as dependent operation NCT (non-standalone NCT), dependent fortune NCT is sought due to wherein deleting local channel/signaling, so needing to run by the compatible carrier wave matched with it.

Further, the object that the user equipment specific search space (USS) of ePDCCH occupies is had determined in independent operation NCT The position of reason resource block (PRB) pair is notified by high-level signaling, specifically, being carried out using UE dedicated mode.In this way may be used It so that the PRB pair of the USS of UE accomplishes that the UE needed for part configures the PRB pair of public USS, such as is to need in COMP The UE of cooperation is conducive to UE and reduces search space respectively through their USS of signal deployment in identical PRB pair, will not Influence the PRB configuration of the USS of other unrelated UE.

For the position of the PRB pair of the USS of the ePDCCH using UE special RRC message notice UE, presently, there are following Problem: UE is accessed during establishing RRC connection from downlink, is necessarily required to complete in random access procedure, wherein needing The msg4 in random access procedure is received, if then msg4 is using the Downlink Control Information for sending scheduling in the USS of UE (DCI), then how about UE knows the position of the PRB pair where the USS of oneself? another problem is: assuming that UE passes through it He completes random access procedure at mode, then, base station needs to send some dedicated dedicated radio resources control protocols for UE (RRC) message, when UE receives first special RRC message that base station is sent at this time, special RRC message is to dispatch to send out by USS Send, then how about UE knows the USS for dispatching first special RRC message in those PRB pairs?

To sum up, existing PRB pair configuration method can not effectively configure the position of the PRB pair of USS, affect the reliable of system Property.

Summary of the invention

The present invention provides a kind of Physical Resource Block configuration method of user equipment specific search space and devices, solve Existing PRB pair configuration method influences the problem of system reliability.

A kind of Physical Resource Block configuration method of user equipment specific search space, comprising:

System side apparatus is configured to indicate that the PRB pair position of default USS in the downstream message msg2 of random access Information；

The msg2 is sent to user equipment (UE) side apparatus.

Preferably, the PRB pair of the default USS is the Physical Downlink Control Channel (ePDCCH) for one or more enhancing Set distribution, the carrying of the USS for ePDCCH；Alternatively,

The default USS is the USS of one or more ePDCCH set.

Preferably, the information of the PRB pair position of the default USS is the control information for the distribution of downlink resource PRB pair.

Preferably, the control information of the downlink resource PRB pair distribution is specially the DCI information of indicating downlink.

Preferably, the PRB pair position for being configured to indicate that in the downstream message msg2 of random access default USS Before the step of information, further includes:

The public of enhancing that the ePDCCH of the Downlink Control Information of the msg2 is carried to UE side apparatus transmission is searched The PRB pair of the CSS of rope space (CSS) or ePDCCH.

It is preferably, described to send the msg2 to UE side apparatus specifically:

According to the Downlink Control Information, to described in UE side apparatus transmission in DSCH Downlink Shared Channel (DL-SCH) msg2。

Preferably, the subframe for sending the msg2 is the subframe arranged or to make an appointment with the UE side apparatus in msg1 A certain subframe in window.

Preferably, the carrier wave for sending the msg2 is the uplink of the carrier wave configured or the transmission msg1 to make an appointment in msg1 Msg2 descending carrier corresponding to carrier wave.

Preferably, mgs2 is transmitted using non-mixed automatic repeat request (HARQ) mode.

It preferably, include downstream grants (DL grant) information in the mgs2, the DL grant information is for default USS defaults the PRB pair of USS or the PRB pair of USS or USS and configures.

Preferably, the Physical Resource Block configuration method of above-mentioned user equipment specific search space further include:

The control information of msg4 or msg4 is sent in the default USS or the PRB pair for defaulting USS.

It the use of default USS or the PRB pair for defaulting USS is the side UE when not distributing the PRB pair of USS for the UE Equipment sends dedicated radio resources control protocol (RRC) message downstream control information or the PDSCH of the scheduling UE side apparatus is passed Defeated Downlink Control Information.

Preferably, before described the step of sending the msg2 to UE, further includes:

The msg2, the RNTI tool are scrambled using the radio network temporary identifier (RNTI) arranged with the UE side apparatus Body is RA-RNTI.

Preferably, after described the step of sending the msg2 to UE side apparatus, further includes:

The UE side apparatus receives the msg2, parses the letter of the PRB pair position of the instruction default USS configured in the msg2 Breath, the position of the PRB pair of confirmation default USS.

Preferably, the system side apparatus is specially base station or relay station or RRH.

The present invention also provides a kind of Physical Resource Block configuration methods of user equipment specific search space, comprising:

It is carried under the instruction of system side apparatus in the downstream message msg2, the msg2 of UE side apparatus reception random access The control information of the control information of row resource PRB pair distribution, the downlink resource PRB pair distribution is specially to default the PRB pair of USS Distribution；

The UE side apparatus parses the information of the PRB pair position of the instruction default USS configured in the msg2, confirmation default The position of the PRB pair of USS.

Preferably, the PRB pair of the default USS is to gather to distribute for one or more ePDCCH, for ePDCCH's The carrying of USS；Alternatively,

The default USS is the USS of one or more ePDCCH set.

Preferably, before the step of downstream message msg2 of the UE side apparatus reception random access, further includes:

The UE side apparatus receives the downlink control of the msg2 in the CSS of ePDCCH or in the PRB pair of the CSS of ePDCCH Information processed.

Preferably, the UE side apparatus receives the downstream message msg2 of random access specifically:

UE side apparatus receives msg2 according to the Downlink Control Information in DL-SCH.

Preferably, the UE side apparatus parses the step of the information of the PRB pair position of the instruction default USS configured in the msg2 Before rapid, further includes:

The UE side apparatus descrambles the msg2 using the RNTI of agreement, and the RNTI of the agreement is RA-RNTI.

Preferably, it is the subframe arranged in msg1 that UE side apparatus, which receives the subframe of the msg2, or in the window made an appointment A certain subframe.

Preferably, the UE side apparatus receives the carrier wave of the msg2 and is the descending carrier configured in msg1 or makes an appointment The UE side apparatus send msg1 the corresponding descending carrier of up-link carrier.

Preferably, the UE side apparatus receives the msg2 using non-HARQ mode.

It preferably, also include DL grant information, this method in the mgs2 further include:

The UE side apparatus parses the DL grant information, and the DL grant information is for default USS or default USS PRB pair or USS or USS PRB pair and configure.

Preferably, the control information of the downlink resource PRB pair distribution is specially DCI information.

In the PRB pair of no distribution USS, the UE side apparatus receives special in the PRB pair of default USS or default USS With the Downlink Control Information of RRC information or the Downlink Control Information of the PDSCH transmission of the reception UE side apparatus scheduling.

Preferably, the UE side apparatus is specially relay station or remote radio head (RRH) or cell or Home eNodeB.

When the UE side apparatus does not receive the configuration information of the configuration information of ePDCCH set or the default USS of ePDCCH When, UE uses the corresponding physical uplink control channel of ePDCCH (PUCCH)₍₁₎Position or UE use from ePDCCH or be The position of received PUCCH in system block of information (SIB).

System side apparatus is configured to indicate that the information of the PRB pair position of default USS in the msg4 of random access；

The system side apparatus sends the msg4 to UE side apparatus.

The default USS is the USS of one or more ePDCCH set.

Preferably, the information of the PRB pair position of the default USS is specially the control information of PRB pair distribution.

Preferably, the control information of the PRB pair distribution is specially DCI information.

Preferably, the system side apparatus is configured to indicate that the PRB pair position of default USS in the msg4 of random access Information the step of before, further includes:

The system side apparatus defaults USS's what the PRB pair or msg2 of the CSS of the CSS or ePDCCH of ePDCCH distributed The Downlink Control Information of the msg4 is sent in PRB pair.

Preferably, system side sends the msg4 to the UE side apparatus using HARQ mechanism.

It preferably, also include DL grant information in the msg4, the DL grant information is specially to default USS or silent Recognize the PRB pair of USS or the PRB pair of USS or USS.

System side apparatus using default USS or defaults USS's when not distributing the PRB pair of USS for the UE side apparatus PRB pair is the PDSCH transmission that the UE side apparatus sends special RRC message or the scheduling UE.

Preferably, after the step of system side apparatus sends the msg4 to the UE side apparatus, further includes:

The UE side apparatus receives the downstream message msg4 of the random access, parses the instruction default configured in the msg4 The information of the PRB pair position of USS, the position of the PRB pair of confirmation default USS.

System side apparatus sends the carrier wave of the msg4 by msg1 or msg2 or msg3 configuration.

UE side apparatus receives the mg4 of random access, the information of the PRB pair position comprising default USS in the mg4；

The UE side apparatus parses the mg4, the information of the PRB pair position of confirmation default USS.

The default USS is the USS of one or more ePDCCH set.

Preferably, the information of the PRB pair position of the default USS is the control information for PRB pair distribution.

Preferably, the UE side apparatus receives the msg4 of random access, therefrom knows the letter of the PRB pair position of default USS Before the step of breath, further includes:

The UE side apparatus is in the CSS of ePDCCH or in the PRB pair of the CSS of ePDCCH or in the PRB pair of msg2 distribution Receive the Downlink Control Information of the msg4.

Preferably, the UE side apparatus receives the msg4 using HARQ mechanism.

The UE side apparatus is when being not received by the PRB pair of the USS distributed for the UE side apparatus, in default USS or silent Recognize in the PRB pair of USS and is received as the PDSCH transmission that base sends special RRC message or the scheduling UE side apparatus.

Preferably, the UE side apparatus is specially UE or relay station or RRH.

Preferably, before the step of mg4 of the UE side apparatus reception random access, further includes:

The UE side apparatus receives msg1 or msg2 or msg3 comprising receiving the configuration of msg4 descending carrier.

Preferably, when UE does not receive the configuration information of the configuration information of ePDCCH set or the default USS of ePDCCH, UE uses the corresponding PUCCH of ePDCCH₍₁₎Position or UE using from ePDCCH or SIB received PUCCH position.

The present invention also provides a kind of Physical Resource Block configuration devices of user equipment specific search space, comprising:

Configuration module, for being configured to indicate that the PRB pair position of default USS in the downstream message msg2 of random access Information；

Information sending module, for sending the msg2 to UE side apparatus.

Preferably, the Physical Resource Block configuration device of above-mentioned user equipment specific search space further include:

Information sending module is controlled, for sending the Downlink Control Information for carrying the msg2 to the UE side apparatus In the PRB pair of the CSS of the CSS or ePDCCH of ePDCCH.

Preferably, the information sending module is also used to send in the default USS or the PRB pair for defaulting USS msg4。

Preferably, the information sending module is also used to make when not distributing the PRB pair of USS for the UE side apparatus It is that the UE side apparatus is sent described in special RRC message Downlink Control Information or scheduling with default USS or the PRB pair for defaulting USS The Downlink Control Information of the PDSCH transmission of UE side apparatus.

Scrambling module, for using what is arranged with the UE side apparatus before the information sending module sends msg2 RNTI scrambles the msg2, and the RNTI is specially RA-RNTI.

Information receiving module carries system side in the downstream message msg2, the msg2 for receiving random access and refers to The control information of the control information for the downlink resource PRB pair distribution shown, the downlink resource PRB pair distribution is specially to default USS PRB pair distribution；

Information analysis module, the information of the PRB pair position for parsing the instruction default USS configured in the msg2, confirmation Default the position of the PRB pair of USS.

Information receiving module is controlled, described in receiving in the CSS of ePDCCH or in the PRB pair of the CSS of ePDCCH The Downlink Control Information of msg2.

Descrambling module, for using the RNTI of agreement to descramble the msg2, the RNTI of the agreement is RA-RNTI.

It is preferred that also include DL grant information in the mgs2,

The information analysis module, is also used to parse the DL grant information, and the DL grant information is specially silent Recognize USS or defaults the PRB pair of USS or the PRB pair of USS or USS.

Preferably, the information receiving module is also used in the PRB pair of no distribution USS, in default USS or default The Downlink Control Information of special RRC message is received in the PRB pair of USS or receives the downlink of the PDSCH transmission of UE side apparatus scheduling Control information.

Configuration module, the information of the PRB pair position for being configured to indicate that default USS in the msg4 of random access；

Information sending module, for sending the msg4 to UE side apparatus.

Information sending module is controlled, PRB pair or the msg2 distribution of the CSS for CSS or ePDCCH in ePDCCH is write from memory Recognize in the PRB pair of USS and sends the Downlink Control Information of the msg4.

Preferably, the information sending module is also used to make when not distributing the PRB pair of USS for the UE side apparatus It is that the UE side apparatus sends special RRC message or the scheduling UE side apparatus with default USS or the PRB pair for defaulting USS PDSCH transmission.

Preferably, the control information sending module is also used to by described in msg1 or msg2 or msg3 configuration transmission The carrier wave of msg4.

Information receiving module, for receiving the mg4 of random access, the PRB pair position comprising default USS in the mg4 Information；

Information analysis module, for parsing the mg4, the information of the PRB pair position of confirmation default USS.

Control information receiving module, in the CSS of ePDCCH or in the PRB pair of the CSS of ePDCCH or msg2 distribution PRB pair in receive the Downlink Control Information of the msg4.

Preferably, the information receiving module is also used in the PRB pair for being not received by the USS for the distribution of UE side apparatus When, it is received as base in the PRB pair of default USS or default USS and sends special RRC message or dispatches the PDSCH biography of UE side apparatus It is defeated.

Preferably, the control information receiving module is also used to receive the msg1 comprising receiving the configuration of msg4 descending carrier Or msg2 or msg3.

The present invention provides a kind of Physical Resource Block configuration method of user equipment specific search space and device, system sides The information of the PRB pair position of default USS can be configured to indicate that in msg4 in the downstream message msg2 of random access, then by msg2 Or msg4 is sent to UE, realizes the configuration that the PRB pair position of USS is completed by the downstream message in random access procedure, solution The problem of existing PRB pair configuration method of having determined influences system reliability.

Detailed description of the invention

Fig. 1 is the flow chart of random access procedure in the embodiment of the present invention one；

Fig. 2 is a kind of Physical Resource Block configuration dress for user equipment specific search space that the embodiment of the present invention four provides The structural schematic diagram set；

Fig. 3 is the Physical Resource Block configuration for another user equipment specific search space that the embodiment of the present invention four provides The structural schematic diagram of device；

Fig. 4 is a kind of Physical Resource Block configuration dress for user equipment specific search space that the embodiment of the present invention five provides The structural schematic diagram set；

Fig. 5 is the Physical Resource Block configuration for another user equipment specific search space that the embodiment of the present invention five provides The structural schematic diagram of device

Specific embodiment

In the prior art, the PRB pair of the USS of UE is to be sent to UE by the special RRC message of UE, then special RRC The transmission of message is firstly the need of establishing RRC connection, currently, just needing UE to know the PRB pair of USS in the process for establishing RRC connection Position.Or just need to know the PRB pair position of USS when UE receives first special RRC message.

To solve the above-mentioned problems, the embodiment provides a kind of physics of user equipment specific search space moneys Source block configuration method and device.

The embodiment of the present invention is described in detail below in conjunction with attached drawing.It should be noted that not conflicting In the case of, the features in the embodiments and the embodiments of the present application can mutual any combination.

First in conjunction with attached drawing, the embodiment of the present invention one is illustrated.

The embodiment of the invention provides a kind of Physical Resource Block configuration method of user equipment specific search space, system sides Increase the configuration information that PRB or PRB pair are distributed for UE side apparatus, system side in the downstream message of equipment in the random access procedure Equipment is that UE side apparatus transmits ePDCCH using the PRB or PRB pair.UE side apparatus is during executing random access, just It can be received as the configuration information of oneself distribution PRB or PRB pair in downstream message, be known as oneself after parsing configuration information and divide The position of the PRB or PRB pair that match.Wherein, the PRB or PRB pair are distributed for the USS of UE side apparatus, are hereinafter referred to as defaulted The PRB or PRB pair of USS.The PRB or PRB pair for defaulting USS are to be not received by special RRC message configuration for UE side apparatus USS PRB or when PRB pair position use.Hereafter illustrate by taking PRB pair as an example, PRB pair can be used PRB replacement, Here mainly depend on that the USS of ePDCCH is carried with what unit, such as when the USS of ePDCCH is with the carrying of OFDM unit, this PRB pair in inventive embodiments can be replaced by OFDM.

Default USS PRB pair be only in the embodiment of the present invention for convenience and rise title, the embodiment of the present invention In default USS be exactly ePDCCH USS.System side apparatus includes base station, relay station, RRH, Home eNodeB etc., UE side apparatus Including mobile phone terminal (such as UE), RRH, Home eNodeB.

The embodiment of the present invention specifically includes two schemes, the first is the PRB pair that default USS is carried by msg2 Location information, second is the location information that the PRB pair of default USS is carried by msg4.

The PRB pair of the default USS is to gather to distribute for one or more ePDCCH, and the USS's for ePDCCH holds It carries；Alternatively, the default USS is the USS of one or more ePDCCH set.

The first scheme is described below, in the first scheme, is illustrated so that UE side apparatus is UE as an example.

The flow diagram of random access with reference to Fig. 1, label 1,2,3,4 therein respectively indicate be msg1, msg2, msg3,msg4.System side apparatus is configured to indicate that the PRB pair position of default USS in the downstream message msg2 of random access Information, and be sent to UE.System side apparatus increases the control information of downlink resource PRB pair distribution in msg2 as default USS PRB pair distribute use, after UE receives msg2, so that it may the position of the PRB pair of USS is therefrom known, so that UE exists When being not received by PRB of the system side apparatus by the USS that RRC dedicated signaling is oneself distribution, it can be used default USS's PRB pair works.

The Downlink Control Information of msg2 is carried on the public search space (Common of the enhancing of ePDCCH by system side apparatus Search Space, abbreviation CSS) in or the PRB pair of CSS in be sent to UE, and according to Downlink Control Information in DL-SCH Msg2 is transmitted to UE.UE receives msg2's during executing random access, through the PRB pair of the CSS or CSS of ePDCCH Then Downlink Control Information receives msg2 according to Downlink Control Information in DL-SCH.System side apparatus is in the case where sending msg2 It is scrambled using the RNTI arranged in advance when row control information, the RNTI of agreement can be RA-RNTI.UE is receiving msg2's When Downlink Control Information, letter is controlled using the downlink of agreement RNTI descrambling msg2 in the CSS of transmission or in the PRB pair of CSS Breath.After descrambling is correct, the Downlink Control Information that UE is considered as msg2 is had correctly received.

The subframe that system side apparatus sends msg2 is that UE is sent corresponding to subframe or time slot of the msg1 to system side, corresponding Relationship is appointed in advance.If corresponding window length is appointed in advance, system side by the way of sending in window Equipment selects suitable subframe to send msg2 in window.UE in the way of arranging in advance, in downlink subframe or time slot Receive the Downlink Control Information and corresponding msg2 of msg2.Or UE, in the window of agreement, subframe detects under msg2 one by one Row control information, until detecting correctly and receive msg2 or window length terminates.

The descending carrier that system side apparatus sends msg2 is that UE sends descending carrier corresponding to the up-link carrier of msg1, right Should be related to it is that configured in advance is good, and notifies in system broadcast message to UE's.It can also be sent using system side apparatus The descending carrier of msg2 is that UE is configured in msg1 and is sent to system side equipment.Here it can increase msg2 in msg1 The carrier indication information of transmission, to indicate that system side apparatus, UE it is expected to send the msg2 of oneself in that descending carrier.

In the transmission process of msg2, system side apparatus and UE agreement do not use HARQ mechanism, and can reduce in this way need not The transmission wanted.System side apparatus is the PRB for defaulting USS or defaulting USS comprising downstream grants (DL grant) information in msg2 Distribution to (or PRB of USS or USS a, only name problem, reality are all the USS for distributing ePDCCH here).

DCI can be used when distributing the PRB pair of default USS of ePDCCH in system side apparatus.UE determines default USS's When PRB pair, known by the resource allocation information in parsing DCI information.

System side apparatus sends msg4 Downlink Control Information or msg4, and root in the PRB pair of default USS or default USS Msg4 is sent in DL-SCH according to Downlink Control Information.UE detects the downlink of msg4 in the PRB pair of default USS or default USS Information is controlled, and msg4 is received in DL-SCH according to Downlink Control Information.

System side apparatus can also indicate that msg4 is sent to UE, instruction of the UE in msg2 in that carrier wave in msg2 Transmission msg4 carrier wave in receive msg4.UE can also configure the carrier wave that oneself expectation sends msg4 in msg1 or msg3, It is UE that system side apparatus sends msg4 in the desired carrier wave of UE.UE receives msg4 in desired carrier wave.Be conducive in this way Multicarrier system selects suitable descending carrier according to the carrier aggregation capacity of UE.In this way, system side apparatus needs msg2 middle finger Show the position of the PRB pair of the default USS in the descending carrier for sending the msg4 of UE.

System side apparatus using default USS or defaults USS's when not distributing the PRB pair of USS of ePDCCH for UE PRB pair is that UE sends the Downlink Control Information of special RRC message signaling or dispatches the downlink control letter of the PDSCH transmission of UE Breath.Equally, when UE is not received by the PRB pair of the USS for the ePDCCH that system side apparatus is oneself distribution, UE is in default USS Or the Downlink Control Information of special RRC message signaling is received in the PRB pair of default USS or dispatches the downlink control of PDSCH transmission Information.

UE receives the downstream message msg2 of random access, parses the letter of the PRB pair position of the instruction default USS wherein configured Breath, the position of the PRB pair of confirmation default USS.

The PRB pair for defaulting USS can be configured to the PRB pair of USS by special RRC message by system side apparatus as UE use.

Preferably, the number of the PRB pair of the default USS of ePDCCH is a pair.

Second scheme is described below, is still illustrated so that UE side apparatus is UE as an example.There is biggish phase with first scheme Same place, the part for being primarily present difference below are described, and still can continue to use above-mentioned scheme for other parts.

System side apparatus is configured to indicate that the information of the PRB pair position of the USS of ePDCCH in the msg4 of random access, And it is sent to UE.After UE receives msg4, the PRB pair position of the USS of ePDCCH is known from msg4.Here the PRB pair of USS claims For the PRB pair of the default USS of ePDCCH, only appellation is defined, and function is shown in the description of front.

System side apparatus sends the Downlink Control Information of msg4 in the PRB pair for the default USS that msg2 is distributed.UE is executed When random access procedure, after receiving msg2, so that it may which the PRB pair position for knowing default USS receives msg4 from the position Downlink Control Information.Msg4 is further received in DL-SCH according to Downlink Control Information.

Alternatively, the Downlink Control Information of msg4 is carried on the CSS's of the CSS or ePDCCH of ePDCCH by system side apparatus It is sent in PRB pair, when UE executes random access procedure, the downlink control of msg4 is received in the PRB pair of the CSS or CSS of ePDCCH Information processed.Msg4 is further received in DL-SCH according to Downlink Control Information.

It is to default the PRB pair distribution of USS to the control information of distribution that system side apparatus increases Physical Resource Block in msg4. Here the control message form of specific PRB pair distribution uses DCI information, can also only indicate the volume of distribution PRB or PRB pair Number, the signaling overheads of the latter is smaller.

When using PRB pair number is notified, the quantity that can arrange to default the PRB pair of USS in advance is only a pair, this is to examine The purposes for considering the PRB pair of the default USS of proposition, the PRB pair for being preferable to provide the default USS of ePDCCH is a pair.It adopts in this way It can be smaller with the mode expense of instruction number.This mode is also to be suitble to scheme 1.

System side apparatus and sending and receiving for UE agreement msg4 use HARQ mechanism in the process.To guarantee that msg4's is reliable Property, so that msg1, msg2, msg3 above-mentioned are effective, and if msg4 transmission failure, msg1, msg2, msg3 above-mentioned It all will failure.

System side apparatus is the PRB pair defaulted USS or default USS comprising downstream grants information in msg4.The downlink is awarded Weighing information can be only PRB pair location information, also may include other information, such as MCS information.UE receive after msg4 from The position of the PRB pair of default USS is known in msg4, and the resource allocation in application downstream grants information or downstream grants information is The PRB pair for defaulting USS uses.

The descending carrier that system side apparatus sends msg4 is that UE sends descending carrier corresponding to the up-link carrier of msg3, right Should be related to it is that configured in advance is good, and notifies in system broadcast message to UE's.It can also be sent using system side apparatus The descending carrier of msg4 is that UE is configured in msg1 or msg3 and is sent to system side equipment.Here can in msg1 or Increase the carrier indication information of msg4 transmission in msg3, to indicate system side apparatus, UE expectation is sent in that descending carrier The msg4 of oneself.

When system side apparatus does not pass through the PRB pair that special RRC message signaling is the USS that UE configures ePDCCH, system side is set The standby PRB pair using default USS disappears the Downlink Control Information or special RRC of the Downlink Control Information or msg4 that send msg2 The Downlink Control Information of the PDSCH transmission of the Downlink Control Information or UE of breath.Further, system side apparatus is controlled according to downlink Information sends msg2, msg4, special RRC message, PDSCH in DL-SCH.UE is also not receive system side device configuration EPDCCH USS PRB pair information, UE receives the Downlink Control Information of msg2 in the PRB pair of default USS, or The Downlink Control Information of the PDSCH transmission of the Downlink Control Information of msg4 or the Downlink Control Information of special RRC message or UE. Further UE receives msg2, msg4, special RRC message, PDSCH according to Downlink Control Information in DL-SCH.

The descending carrier that system side apparatus sends msg4 can be configured and be indicated in msg1 or msg2 or msg3.

System side apparatus and UE arrange, when system side apparatus is configured with the PRB pair of USS using special RRC message for UE, The PRB pair of the preferential USS using system side device configuration.Wherein, special RRC message signal deployment can be used in system side apparatus The PRB pair of USS is Chong Die with the default PRB pair of USS.

It is described below after obtaining the PRB pair of default USS of ePDCCH, specifically how using these PRB pairs to be The mapping (mapping of really USS or eCSS) of ePDCCH.Using K indicate ePDCCH PRB pair set total number or Person indicates the total number of ePDCCH set, and set is to gather in advance using several PRB pairs as one, and set is indicated to UE, UE The USS or CSS of ePDCCH are retrieved in the PRB that set includes.For example, a set includes 2 or 4 or 8 PRB pairs, collection The PRB pair number that conjunction includes is indicated with N.PRB pair in one set can be discrete, is also possible to continuous, uses respectively KL and KD indicates the number for the set that the number for the set that discrete PRB pair is constituted and continuous PRB pair are constituted, K >=KL+ KD.Such as when regulation K=2, KL and KD can be combined in following manner:

{ KL=1, KD=0 }, { KL=0, KD=1 }, { KL=1, KD=1 }, { KL=0, KD=2 }, { KL=2, KD= 0}。

The value of N is { 2,4,8 }.

The USS for further providing for the ePDCCH for independent operation NCT, other than making in manner just described, under further including Face:

KL and KD uses default configuration or uses signaling for UE instruction.If using default configuration, such as: regulation KL and KD Configuration be only one of combinations of the above and following combination, K=3, KL and KD group is combined into { KL=0, KD=1 }, { KL= 1, KD=0 }, { KL=0, KD=2 }, { KL=2, KD=0 }, { KL=1, KD=1 }, { KL=0, KD=3 }, { KL=1, KD= 2 }, { KL=2, KD=1 }, { KL=3, KD=0 }.

If using signaling for UE instruction, signaling is UE transmission, tool by broadcast system information or special RRC message Set K, KL, KD or N value of body can be signaled by this to the UE of needs.

The USS of ePDCCH in independent operation NCT can use 2 or 4 for above-mentioned N value.Or it is fixed according to system bandwidth Justice default N value, different system bandwidths correspond to different N values.For example, relationship shown in the following table 1.It can also be using the predetermined of table 2 Right way of conduct formula.

Further to independent operation NCT, after indicating the default PRB pair of ePDCCH, there is also need to indicate EPDCCH is specifically mapped since that OFDM symbol in PRB pair, that is, starting OFDM symbol.Herein for different type The different default OFDM symbol initial position of subframe definition, or being fixed as the 3rd or 4 OFDM is primary sign, more into one The OFDM symbol for walking the PDSCH starting of ePDCCH scheduling is identical as ePDCCH starting OFDM symbol.Such as the corresponding MBSFN of PMCH When subframe, default ePDCCH starting OFDM symbol is third OFDM symbol；The corresponding default ePDCCH starting of conventional subframe OFDM symbol is the 4th OFDM symbol.

Table 1

Table 2

Further to NCT carrier wave, DMRS scramble sequence initial parameter X be the cell ce11ID either C-RNTI of UE or Person is the interim C-RNTI of UE.The position of ePDCCH corresponding starting eCCE in PRB set is according to Hash (HASH) letter Number determines.

When the ePDCCH of descending carrier sends descending scheduling, corresponding to up-link carrier in PUCCH (Physical Uplink Control Channel, Physical Uplink Control Channel) initial position configured in SIB.Further, it is not receiving Before configuring RRC information to related ePDCCH correlation USS, UE is using the PUCCH initial position defaulted, such as uses ePDCCH pairs The PUCCH answered₍₁₎Position, alternatively, configuring its initial position in ePBCH or SIB.When UE does not receive ePDCCH set When the configuration information of the default USS of configuration information or ePDCCH, UE uses the corresponding PUCCH of ePDCCH₍₁₎Position or UE make With the position of PUCCH received from ePDCCH or SIB.

In the following, being illustrated to the embodiment of the present invention two.

The embodiment of the invention provides a kind of Physical Resource Block configuration methods of user equipment specific search space, with NCT In network, system side apparatus is that base station, UE side apparatus are illustrated for being UE.In NCT, when UE executes random access procedure, UE sends msg1 to base station, which can continue to use existing protocol, and which is not described herein again.

After the msg1 for receiving UE transmission, base station sends msg2 to UE in the corresponding descending carrier of msg1 for base station, this The PRB pair position that Shi Jizhan needs to configure the default USS of ePDCCH in msg2 is UE, and by the Downlink Control Information of msg2 It is sent to UE in the CSS of ePDCCH after scrambling using the RNTI of agreement, and is sent in DL-SCH according to Downlink Control Information msg2。

UE detects the Downlink Control Information in the PRB pair of the CSS of ePDCCH in corresponding subframe or window, uses agreement RNTI descrambling, obtain Downlink Control Information, and msg2 received in DL-SCH according to Downlink Control Information, further parse Msg2, to obtain the position of the PRB pair of default USS.

UE sends msg3 to base station, can use as defined in existing protocol.Which is not described herein again.

After base station receives the msg3 of UE transmission, the Downlink Control Information of msg4 is being used into C-RNTI or interim C-RNTI It is sent to UE in the PRB pair of the default USS of above-mentioned ePDCCH after scrambling, and is sent in DL-SCH according to Downlink Control Information msg4.UE detects the Downlink Control Information of msg4, and descrambles, and msg4 is received in DL-SCH according to Downlink Control Information.

In the following, being illustrated to the embodiment of the present invention three.

After the msg1 for receiving UE transmission, it is UE that base station, which sends msg2, for base station, is executed here still according to existing protocol , do not repeat.

UE detects the Downlink Control Information in the PRB pair of the CSS of ePDCCH in corresponding subframe or window, uses agreement RNTI descrambling, obtain Downlink Control Information, and msg2 received in DL-SCH according to Downlink Control Information.

After base station receives the msg3 of UE transmission, base station needs to configure the PRB pair position of the default USS of ePDCCH in msg4 It is set to UE, and the Downlink Control Information of msg4 is sent to UE in the CSS of ePDCCH using after the RNTI scrambling of agreement, and Msg4 is sent in DL-SCH according to Downlink Control Information.

UE receives msg4, and PRB pair of the UE in the CSS of ePDCCH detects the Downlink Control Information, use the RNTI of agreement Descrambling obtains Downlink Control Information, and receives msg4 in DL-SCH according to Downlink Control Information.To obtain default USS's The position of PRB pair.

When sending special RRC message signaling for UE, base station sends special RRC in the PRB pair configuration of default USS and disappears for base station The Downlink Control Information of breath, and scrambled using the C-RNTI of UE, and special RRC is sent in DL-SCH according to Downlink Control Information Message.UE is not due to receiving base station also using the PRB pair position for the USS that special RRC message signaling is oneself configuration, so UE The Downlink Control Information of special RRC message is just detected in default USS, and is received in DL-SCH specially according to Downlink Control Information Use RRC information.It is also same that base station scheduling, which sends the PDSCH of UE,.

When base station is configured with the PRB pair of USS using special RRC message for UE, the preferential PRB pair for using USS.Wherein base PRB pair overlapping of the PRB pair in default USS of special RRC message signal deployment USS can be used in station.

With reference to the accompanying drawing, the embodiment of the present invention four is illustrated.

The embodiment of the invention provides a kind of Physical Resource Block configuration device of user equipment specific search space, the devices Structure it is as shown in Figure 2, comprising:

Configuration module 201, for being configured to indicate that the PRB pair of default USS in the downstream message msg2 of random access The information of position；

Information sending module 202, for sending the msg2 to UE side apparatus.

Preferably, the device further include:

Information sending module 203 is controlled, for sending the downlink control letter for carrying the msg2 to the UE side apparatus In the PRB pair of the CSS of the CSS or ePDCCH of the ePDCCH of breath.

Preferably, the information sending module 202 is also used to send in the default USS or the PRB pair for defaulting USS msg4。

Preferably, the information sending module 202 is also used in the PRB pair for not distributing USS for the UE side apparatus When, it the use of default USS or the PRB pair for defaulting USS is that the UE side apparatus sends special RRC message Downlink Control Information or scheduling The Downlink Control Information of the PDSCH transmission of the UE side apparatus.

Preferably, the device further include:

Scrambling module 204, for the information sending module 202 send msg2 before, using with the UE side apparatus The RNTI of agreement scrambles the msg2, and the RNTI is specially RA-RNTI.

PRB configuration device shown in Fig. 2 can be integrated in system side apparatus, complete corresponding function by system side apparatus.System It unites side apparatus concretely base station or relay station or RRH.

The embodiment of the invention also provides a kind of Physical Resource Block configuration device of user equipment specific search space, knots Structure is as shown in Figure 3, comprising:

Information receiving module 301 carries system side in the downstream message msg2, the msg2 for receiving random access The control information of the control information of the downlink resource PRB pair distribution of instruction, the downlink resource PRB pair distribution is specially to default The PRB pair of USS distributes；

Information analysis module 302, the information of the PRB pair position for parsing the instruction default USS configured in the msg2, really Recognize the position of the PRB pair of default USS.

Preferably, the device further include:

Information receiving module 303 is controlled, described in receiving in the CSS of ePDCCH or in the PRB pair of the CSS of ePDCCH The Downlink Control Information of msg2.

Preferably, the device further include:

Descrambling module 304, for using the RNTI of agreement to descramble the msg2, the RNTI of the agreement is RA-RNTI.

It preferably, also include DL grant information in the mgs2, the information analysis module 302 is also used to parse institute DL grant information is stated, the DL grant information is specially the PRB of the PRB pair or USS or USS of defaulting USS or default USS It is right.

Preferably, the information receiving module 301 is also used in the PRB pair of no distribution USS, in default USS or silent Recognize in the PRB pair of USS under the Downlink Control Information for receiving special RRC message or the PDSCH transmission for receiving the scheduling of UE side apparatus Row control information.

The Physical Resource Block configuration device of user equipment specific search space shown in Fig. 3, can be integrated in UE side apparatus, by UE side apparatus completes corresponding function.The UE side apparatus is specially relay station or RRH or cell or Home eNodeB.

With reference to the accompanying drawing, the embodiment of the present invention five is illustrated.

The embodiment of the invention provides a kind of Physical Resource Block configuration device of user equipment specific search space, structures As shown in Figure 4, comprising:

Configuration module 401, the letter of the PRB pair position for being configured to indicate that default USS in the msg4 of random access Breath；

Information sending module 402, for sending the msg4 to UE side apparatus.

Preferably, the device further include:

Information sending module 403 is controlled, PRB pair or the msg2 distribution of the CSS for CSS or ePDCCH in ePDCCH Default the Downlink Control Information that the msg4 is sent in the PRB pair of USS.

Preferably, the information sending module 402 is also used in the PRB pair for not distributing USS for the UE side apparatus When, it the use of default USS or the PRB pair for defaulting USS is that the UE side apparatus sends special RRC message or the scheduling UE side apparatus PDSCH transmission.

Preferably, the control information sending module 403 is also used to by described in msg1 or msg2 or msg3 configuration transmission The carrier wave of msg4.

The Physical Resource Block configuration device of user equipment specific search space shown in Fig. 4, can be integrated in system side apparatus, Corresponding function is completed by system side apparatus.System side apparatus is specially base station or relay station or RRH.

The embodiment of the invention also provides a kind of Physical Resource Block configuration device of user equipment specific search space, knots Structure is as shown in Figure 5, comprising:

Information receiving module 501, for receiving the mg4 of random access, the PRB pair position comprising default USS in the mg4 Information；

Information analysis module 502, for parsing the mg4, the information of the PRB pair position of confirmation default USS.

Preferably, the device further include:

Information receiving module 503 is controlled, in the CSS of ePDCCH or in the PRB pair of the CSS of ePDCCH or msg2 point The Downlink Control Information of the msg4 is received in the PRB pair matched.

Preferably, the information receiving module 501 is also used in the PRB for being not received by the USS for the distribution of UE side apparatus Clock synchronization is received as base in the PRB pair of default USS or default USS and sends special RRC message or dispatch the UE side apparatus PDSCH transmission.

Preferably, the control information receiving module 503 is also used to receive comprising receiving the configuration of msg4 descending carrier Msg1 or msg2 or msg3.

The Physical Resource Block configuration device of user equipment specific search space shown in fig. 5, can be integrated in UE side apparatus, Corresponding function is completed by UE side apparatus.UE side apparatus is specially UE or relay station or RRH.

The embodiment provides a kind of Physical Resource Block configuration method of user equipment specific search space and dresses It sets, system side apparatus can be configured to indicate that the PRB pair position of default USS in msg4 in the downstream message msg2 of random access Information, then msg2 or msg4 is sent to UE side apparatus, it realizes and completes USS's by the downstream message in random access procedure The configuration of PRB pair position, UE side apparatus is during executing random access, so that it may be received as oneself in downstream message and divide Configuration information with PRB or PRB pair is known as oneself PRB of distribution or the position of PRB pair after parsing configuration information, is establishing The PRB pair position that USS can be obtained when first special RRC message of process or reception of RRC connection, solves existing PRB The problem of system reliability is influenced on configuration method.

Those of ordinary skill in the art will appreciate that computer journey can be used in all or part of the steps of above-described embodiment Sequence process realizes that the computer program can be stored in a computer readable storage medium, the computer program exists (such as system, unit, device) executes on corresponding hardware platform, when being executed, include the steps that embodiment of the method it One or combinations thereof.

Optionally, integrated circuit can be used also to realize in all or part of the steps of above-described embodiment, these steps can To be fabricated to integrated circuit modules one by one respectively, or make multiple modules or steps in them to single integrated electricity Road module is realized.In this way, the present invention is not limited to any specific hardware and softwares to combine.

Each device/functional module/functional unit in above-described embodiment, which can be adopted, is realized with general computing device realization, it Can be concentrated on a single computing device, can also be distributed over a network of multiple computing devices.

Each device/functional module/functional unit in above-described embodiment realized in the form of software function module and as Independent product when selling or using, can store in a computer readable storage medium.Computer mentioned above Read/write memory medium can be read-only memory, disk or CD etc..

Anyone skilled in the art in the technical scope disclosed by the present invention, can readily occur in variation or Replacement, should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the guarantor described in claim It protects subject to range.

Claims

1. a kind of Physical Resource Block configuration method of user equipment specific search space characterized by comprising

System side apparatus controls the physical down that the Downlink Control Information of the downstream message msg2 of random access is carried on enhancing The PRB pair of the CSS of the public search space CSS or ePDCCH of the enhancing of channel ePDCCH are sent to user equipment (UE), and in institute State the information that the Physical Resource Block PRB pair position of default user device-specific search space USS is configured to indicate that in msg2；

According to the Downlink Control Information, the msg2 is sent to the UE side apparatus in DSCH Downlink Shared Channel DL-SCH.

2. the Physical Resource Block configuration method of user equipment specific search space according to claim 1, which is characterized in that

The PRB pair of the default USS is the Physical Downlink Control Channel ePDCCH set distribution for one or more enhancing, is used In the carrying of the USS of ePDCCH；Alternatively,

The default USS is the USS of one or more ePDCCH set.

3. the Physical Resource Block configuration method of user equipment specific search space according to claim 1, which is characterized in that The information of the PRB pair position of the default USS is the control information for the distribution of downlink resource PRB pair.

4. the Physical Resource Block configuration method of user equipment specific search space according to claim 3, which is characterized in that The control information of the downlink resource PRB pair distribution is specially the Downlink Control Information DCI information of indicating downlink.

5. the Physical Resource Block configuration method of user equipment specific search space according to claim 1, which is characterized in that The subframe of the msg2 is sent as the subframe arranged in msg1 or a certain subframe in the window made an appointment with the UE side apparatus.

6. the Physical Resource Block configuration method of user equipment specific search space, feature exist according to claim 1 or 5 In, send the msg2 carrier wave be msg1 in the carrier wave configured or make an appointment transmission msg1 up-link carrier corresponding to Msg2 descending carrier.

7. the Physical Resource Block configuration method of user equipment specific search space according to claim 1, which is characterized in that Msg2 is transmitted using non-mixed automatic repeat request HARQ mode.

8. the Physical Resource Block configuration method of user equipment specific search space according to claim 1, which is characterized in that It include downstream grants DL grant information in the msg2, the DL grant information is the PRB for default USS or default USS Pair or USS or USS PRB pair and configure.

9. the Physical Resource Block configuration method of user equipment specific search space according to claim 1, which is characterized in that This method further include:

10. the Physical Resource Block configuration method of user equipment specific search space according to claim 1, feature exist In this method further include:

It the use of default USS or the PRB pair for defaulting USS is the UE side apparatus when not distributing the PRB pair of USS for the UE Under the PDSCH transmission for sending dedicated radio resources control protocol RRC information Downlink Control Information or the scheduling UE side apparatus Row control information.

11. the Physical Resource Block configuration method of user equipment specific search space according to claim 1, feature exist In before described the step of sending the msg2 to UE, further includes:

The msg2 is scrambled using the radio network temporary identifier RNTI arranged with the UE side apparatus, the RNTI is specially RA-RNTI.

12. the Physical Resource Block configuration method of user equipment specific search space according to claim 1, feature exist In after described the step of sending the msg2 to UE side apparatus, further includes:

The UE side apparatus receives the msg2, parses the information of the PRB pair position of the instruction default USS configured in the msg2, The position of the PRB pair of confirmation default USS.

13. the Physical Resource Block configuration method of user equipment specific search space according to claim 1, feature exist In the system side apparatus is specially base station or relay station or RRH.

14. a kind of Physical Resource Block configuration method of user equipment specific search space characterized by comprising

The downlink money of system side apparatus instruction is carried in the downstream message msg2, the msg2 of UE side apparatus reception random access The control information of source PRB pair distribution, the control information of the downlink resource PRB pair distribution are specially to default the PRB pair point of USS Match；

The UE side apparatus parses the information of the PRB pair position of the instruction default USS configured in the msg2, confirmation default USS's The position of PRB pair.

15. the Physical Resource Block configuration method of user equipment specific search space according to claim 14, feature exist In,

The PRB pair of the default USS is to gather to distribute for one or more ePDCCH, the carrying of the USS for ePDCCH；Or Person,

The default USS is the USS of one or more ePDCCH set.

16. the Physical Resource Block configuration method of user equipment specific search space according to claim 14, feature exist In before the step of UE side apparatus receives the downstream message msg2 of random access, further includes:

The UE side apparatus receives the downlink control letter of the msg2 in the CSS of ePDCCH or in the PRB pair of the CSS of ePDCCH Breath.

17. the Physical Resource Block configuration method of user equipment specific search space according to claim 16, feature exist In the UE side apparatus receives the downstream message msg2 of random access specifically:

18. the Physical Resource Block configuration method of user equipment specific search space according to claim 14, feature exist Before the step of, the UE side apparatus parses the information of the PRB pair position of the instruction default USS configured in the msg2, also wrap It includes:

19. the Physical Resource Block configuration method of user equipment specific search space according to claim 14, feature exist In the subframe that UE side apparatus receives the msg2 is the subframe arranged in msg1, or a certain subframe in the window made an appointment.

20. the Physical Resource Block configuration method of user equipment specific search space according to claim 14, feature exist In the carrier wave that the UE side apparatus receives the msg2 is that the descending carrier configured or the side UE made an appointment are set in msg1 Preparation send the up-link carrier of msg1 corresponding descending carrier.

21. the Physical Resource Block configuration method of user equipment specific search space according to claim 14, feature exist In the UE side apparatus receives the msg2 using non-HARQ mode.

22. the Physical Resource Block configuration method of user equipment specific search space according to claim 14, feature exist In also comprising DL grant information, this method in the msg2 further include:

The UE side apparatus parses the DL grant information, and the DL grant information is for default USS or default USS The PRB pair of PRB pair or USS or USS and configure.

23. the Physical Resource Block configuration method of user equipment specific search space according to claim 14, feature exist In the control information of the downlink resource PRB pair distribution is specially DCI information.

24. the Physical Resource Block configuration method of user equipment specific search space according to claim 14, feature exist In this method further include:

In the PRB pair of no distribution USS, the UE side apparatus receives special RRC in the PRB pair of default USS or default USS The Downlink Control Information of message or the Downlink Control Information for receiving the PDSCH transmission that the UE side apparatus is dispatched.

25. the Physical Resource Block configuration method of user equipment specific search space according to claim 14, feature exist In the UE side apparatus is specially relay station or remote radio head RRH or cell or Home eNodeB.

26. the Physical Resource Block configuration method of user equipment specific search space according to claim 14, feature exist In this method further include:

When the UE side apparatus does not receive the configuration information of the configuration information of ePDCCH set or the default USS of ePDCCH, UE is using the position or UE use of the corresponding physical uplink control channel PUCCH of ePDCCH from ePDCCH or system information The position of received PUCCH in block SIB.

27. a kind of Physical Resource Block configuration method of user equipment specific search space characterized by comprising

System side apparatus is sent out in the PRB pair for the default USS that the PRB pair or msg2 of the CSS of the CSS or ePDCCH of ePDCCH distribute The Downlink Control Information for sending the msg4 of random access is configured to indicate that the letter of the PRB pair position of default USS in the msg4 Breath；

The system side apparatus sends the msg4 to UE side apparatus using HARQ mechanism.

28. the Physical Resource Block configuration method of user equipment specific search space according to claim 27, feature exist In,

The default USS is the USS of one or more ePDCCH set.

29. the Physical Resource Block configuration method of user equipment specific search space according to claim 27, feature exist In the information of the PRB pair position of the default USS is specially the control information of PRB pair distribution.

30. the Physical Resource Block configuration method of user equipment specific search space according to claim 29, feature exist In the control information of the PRB pair distribution is specially DCI information.

31. the Physical Resource Block configuration method of user equipment specific search space according to claim 27, feature exist In also comprising DL grant information in the msg4, the DL grant information is specially the PRB pair defaulted USS or default USS Or the PRB pair of USS or USS.

32. the Physical Resource Block configuration method of user equipment specific search space according to claim 27, feature exist In this method further include:

System side apparatus uses the PRB of default USS or default USS when not distributing the PRB pair of USS for the UE side apparatus To the PDSCH transmission for sending special RRC message or the scheduling UE for the UE side apparatus.

33. the Physical Resource Block configuration method of user equipment specific search space according to claim 27, feature exist After the step of, the system side apparatus sends the msg4 to the UE side apparatus, further includes:

The UE side apparatus receives the downstream message msg4 of the random access, parses the instruction default USS configured in the msg4 PRB pair position information, confirmation default USS PRB pair position.

34. the Physical Resource Block configuration method of user equipment specific search space according to claim 27, feature exist In the system side apparatus is specially base station or relay station or RRH.

35. the Physical Resource Block configuration method of user equipment specific search space according to claim 27, feature exist In the step of, the system side apparatus is configured to indicate that the information of the PRB pair position of default USS in the msg4 of random access Before, further includes:

36. a kind of Physical Resource Block configuration method of user equipment specific search space characterized by comprising

UE side apparatus receives random in the CSS of ePDCCH or in the PRB pair of the CSS of ePDCCH or in the PRB pair of msg2 distribution The Downlink Control Information of the msg4 of access receives the msg4, the PRB comprising default USS in the msg4 using HARQ mechanism To the information of position；

The UE side apparatus parses the msg4, the information of the PRB pair position of confirmation default USS.

37. the Physical Resource Block configuration method of user equipment specific search space according to claim 36, feature exist In,

The default USS is the USS of one or more ePDCCH set.

38. the Physical Resource Block configuration method of user equipment specific search space according to claim 36, feature exist In the information of the PRB pair position of the default USS is the control information for PRB pair distribution.

39. the Physical Resource Block configuration method of the user equipment specific search space according to claim 38, feature exist In the control information of the PRB pair distribution is specially DCI information.

40. the Physical Resource Block configuration method of user equipment specific search space according to claim 36, feature exist In this method further include:

The UE side apparatus is when being not received by the PRB pair of the USS distributed for the UE side apparatus, in default USS or default USS PRB pair in receive the PDSCH transmission of special RRC message or the scheduling UE side apparatus.

41. the Physical Resource Block configuration method of user equipment specific search space according to claim 36, feature exist In the UE side apparatus is specially UE or relay station or RRH.

42. the Physical Resource Block configuration method of user equipment specific search space according to claim 36, feature exist In before the step of UE side apparatus receives the msg4 of random access, further includes:

43. the Physical Resource Block configuration method of user equipment specific search space according to claim 36, feature exist In,

When UE does not receive the configuration information of the configuration information of ePDCCH set or the default USS of ePDCCH, UE is used The position of the corresponding PUCCH of ePDCCH or UE use the position of the received PUCCH from ePDCCH or SIB.

44. a kind of Physical Resource Block configuration device of user equipment specific search space characterized by comprising

Information sending module is controlled, for sending the downlink control for carrying the downstream message msg2 of random access to UE side apparatus The PRB pair of the CSS of the CSS or ePDCCH of the ePDCCH of information；

Configuration module, the information of the PRB pair position for being configured to indicate that default USS in the msg2；

Information sending module, for being set to the side UE in DSCH Downlink Shared Channel DL-SCH according to the Downlink Control Information Preparation send the msg2.

45. the Physical Resource Block configuration device of user equipment specific search space according to claim 44, feature exist In,

The information sending module is also used to send msg4 in the default USS or the PRB pair for defaulting USS.

46. the Physical Resource Block configuration device of user equipment specific search space according to claim 44, feature exist In,

The information sending module, be also used to not for the UE side apparatus distribute USS PRB pair when, using default USS or The PRB pair for defaulting USS is that the UE side apparatus sends special RRC message Downlink Control Information or the scheduling UE side apparatus The Downlink Control Information of PDSCH transmission.

47. the Physical Resource Block configuration device of user equipment specific search space according to claim 44, feature exist In the device further include:

Scrambling module, for using the RNTI arranged with the UE side apparatus before the information sending module sends msg2 The msg2 is scrambled, the RNTI is specially RA-RNTI.

48. a kind of Physical Resource Block configuration device of user equipment specific search space characterized by comprising

Information receiving module carries system side instruction in the downstream message msg2, the msg2 for receiving random access The control information of the control information of downlink resource PRB pair distribution, the downlink resource PRB pair distribution is specially to default the PRB of USS To distribution；

49. the Physical Resource Block configuration device of user equipment specific search space according to claim 48, feature exist In the device further include:

Information receiving module is controlled, for receiving the msg2's in the CSS of ePDCCH or in the PRB pair of the CSS of ePDCCH Downlink Control Information.

50. the Physical Resource Block configuration device of user equipment specific search space according to claim 48, feature exist In the device further include:

51. the Physical Resource Block configuration device of user equipment specific search space according to claim 48, feature exist In, it also include DL grant information in the msg2,

The information analysis module, is also used to parse the DL grant information, and the DL grant information is specially to default USS Or default the PRB pair of USS or the PRB pair of USS or USS.

52. the Physical Resource Block configuration device of user equipment specific search space according to claim 48, feature exist In,

The information receiving module is also used in the PRB pair of no distribution USS, in the PRB pair of default USS or default USS It receives the Downlink Control Information of special RRC message or receives the Downlink Control Information of the PDSCH transmission of UE side apparatus scheduling.

53. a kind of Physical Resource Block configuration device of user equipment specific search space characterized by comprising

Control information sending module, the default USS of PRB pair or the msg2 distribution of the CSS for CSS or ePDCCH in ePDCCH PRB pair in send random access msg4 Downlink Control Information；

Configuration module, the information of the PRB pair position for being configured to indicate that default USS in the msg4；

Information sending module, for sending the msg4 to UE side apparatus using HARQ mechanism.

54. the Physical Resource Block configuration device of user equipment specific search space according to claim 53, feature exist In,

The information sending module, be also used to not for the UE side apparatus distribute USS PRB pair when, using default USS or The PRB pair for defaulting USS is that the UE side apparatus sends special RRC message or dispatches the PDSCH transmission of the UE side apparatus.

55. the Physical Resource Block configuration device of user equipment specific search space according to claim 53, feature exist In,

The control information sending module is also used to send the carrier wave of the msg4 by msg1 or msg2 or msg3 configuration.

56. a kind of Physical Resource Block configuration device of user equipment specific search space characterized by comprising

Information receiving module, in the CSS of ePDCCH or in the PRB pair of the CSS of ePDCCH or in the PRB pair of msg2 distribution The Downlink Control Information for receiving the msg4 of random access receives the msg4 using HARQ mechanism, includes default in the msg4 The information of the PRB pair position of USS；

Information analysis module, for parsing the msg4, the information of the PRB pair position of confirmation default USS.

57. the Physical Resource Block configuration device of user equipment specific search space according to claim 56, feature exist In,

The information receiving module is also used to when being not received by the PRB pair of the USS distributed for UE side apparatus, in default USS Or special RRC message is received in the PRB pair of default USS or dispatches the PDSCH transmission of UE side apparatus.

58. the Physical Resource Block configuration device of user equipment specific search space according to claim 56, feature exist In,

The control information receiving module, be also used to receive comprising receive msg4 descending carrier configuration msg1 or msg2 or msg3。