CN104244417A

CN104244417A - TDD uplink and downlink configuration indicating method and user equipment

Info

Publication number: CN104244417A
Application number: CN201410093569.7A
Authority: CN
Inventors: 付景兴; 李迎阳; 孙程君; 张世昌
Original assignee: Beijing Samsung Telecommunications Technology Research Co Ltd; Samsung Electronics Co Ltd
Current assignee: Beijing Samsung Telecom R&D Center; Beijing Samsung Telecommunications Technology Research Co Ltd; Samsung Electronics Co Ltd
Priority date: 2013-06-08
Filing date: 2014-03-13
Publication date: 2014-12-24

Abstract

The invention discloses a TDD uplink and downlink configuration indicating method which is applied to a TDD reconfiguration system. The TDD uplink and downlink configuration indicating method includes the steps that user equipment (UE) receives configuration information of a base station, wherein the configuration information is used for configuring the UE to work in a TDD reconfiguration mode; the UE detects a PDCCH or an ePDCCH within a specific search space to obtain the actual TDD uplink and downlink configuration of a reconfigured service cell, wherein the PDCCH or the ePDCCH is used for transmitting the TDD reconfiguration control information. The invention further discloses the UE. By the application of the technical scheme, the UE can work normally in the TDD reconfiguration mode.

Description

The indicating means of TDD upstream and downstream configuration and subscriber equipment

Technical field

The application relates to mobile communication technology field, and specifically, the application relates to indicating means and the subscriber equipment of the TDD upstream and downstream configuration in TDD reconfiguration system.

Background technology

Long Term Evolution (LTE, Long Term Evolution) technical support Frequency Division Duplexing (FDD) (FDD, Frequency Division Duplexing) and time division duplex (TDD, Time Division Duplexing) two kinds of duplex modes.Transmission in TDD system comprises: by base station to the transmission (being called descending) of subscriber equipment (UE, User Equipment) with by the transmission (be called up) of UE to base station.Based on the frame structure shown in Fig. 1, in every 10ms time uplink and downlink share 10 subframes, each subframe or configuration to up or configuration to descending, by configuration be called sub-frame of uplink to up subframe, by configuration be called descending sub frame to descending subframe.Support 7 kinds of TDD upstream and downstream configurations in TDD system, as shown in table 1, D represents descending sub frame, and U represents sub-frame of uplink, and S represents the above-mentioned special subframe comprising 3 special domain.

Table 1TDD upstream and downstream allocation list

In LTE-A, by introducing TDD reconfiguration technology (TDD Reconfiguration), namely the configuration of TDD upstream and downstream is changed fast by signaling, the ratio of current sub-frame of uplink and descending sub frame can be made more to meet the ratio of current upstream traffic and downlink traffic, be conducive to improving the upstream and downstream peak rate of user and improve the throughput of system.

In LTE-A, obtain larger bandwidth of operation by being polymerized multiple unit carrier wave (CC, Component Carrier), i.e. carrier aggregation (CA, Carrier Aggregation), form the descending and up link of communication system, thus support higher transmission rate.Such as, in order to support the bandwidth of 100MHz, can be obtained by the CC being polymerized 5 20MHz.Here, each CC is called a community (Cell).To a UE, base station can be configured in multiple Cell and work, and one of them is that main Cell(also can be described as PCC or Pcell), and other CC are called that auxiliary Cell(also can be described as SCC or Scell).Because the business proportion of the upstream and downstream of different cell may be different, therefore different cell may adopt different TDD upstream and downstream configurations, and therefore the TDD upstream and downstream configuration of different cell needs to indicate respectively.

In LTE-A, for multiple remote radio heads (the remote radio head in coordinate multipoint communication (CoMP) scene four (hereinafter referred CoMP system), RRH) identical cell ID is used, multiple RRH shares same public search space, because the business proportion of different RRH upstream and downstream may be different, therefore different RRH may adopt different TDD upstream and downstream configurations, and the cell ID of different RRH is the same in CoMP system, therefore the TDD upstream and downstream configuration of different RRH needs to indicate respectively.

In existing LTE and lte-a system, the PDCCH search space that UE detects is divided into public search space (Common Search Space) and the peculiar search volume of UE (UE Specific Search Space), the physical layer signaling information that what the PDCCH sent in public search space carried is for one group of UE in UE all in community or community, and, the PDCCH of transmission carries the peculiar search volume of UE in is physical layer signaling information for a certain particular UE.And the information that the ePDCCH sent in the ePDCCH search volume that UE detects at present carries is only the physical layer information for a certain particular UE, namely ePDCCH search volume is the peculiar search volume of UE.

Agreement according to existing LTE and LTE-A specifies, UE is the TDD upstream and downstream configuration that system message by broadcasting in community obtains this community.If utilize the information of system message transmission to change the configuration of TDD upstream and downstream, its minimum change cycle is 640 milliseconds, and the quick switching how realizing the configuration of TDD upstream and downstream is technical issues that need to address.

For main plot, there is common physical layer signaling, and at carrier aggregation (carrier aggregation, CA) in system, the TDD upstream and downstream configuration of auxiliary community is by high-level signaling notice UE, UE does not detect the common physical layer signaling of auxiliary community, thus cannot indicate the TDD upstream and downstream configuration of auxiliary community.And in cooperative multipoint communication system, multiple transfer point shares same common physical layer signaling, cause to indicate respectively the TDD upstream and downstream configuration of different RRH.Visible, to CA system and CoMP system, the physical layer signaling of public search space is not also utilized at present to indicate the technical scheme of the TDD upstream and downstream configuration of multiple transfer point in main plot and/or auxiliary community and CoMP system, cause the quick switching that cannot realize the configuration of TDD upstream and downstream in CA system and CoMP system, thus cause UE cannot normally work in TDD reconfiguration mode in said system.

Summary of the invention

The object of the application is intended at least solve one of above-mentioned technological deficiency, and the indicating means providing the TDD upstream and downstream in a kind of TDD reconfiguration system to configure and subscriber equipment, can normally work under TDD reconfiguration mode to make UE.

The indicating means of a kind of TDD upstream and downstream configuration disclosed in the present application, is applied to TDD reconfiguration system, comprises:

A, UE receive the configuration information of base station, and this configuration information configuration UE is operated in TDD reconfiguration mode;

B, UE detect PDCCH or ePDCCH that transmission TDD reshuffles control information in specific search volume, obtain the actual TDD upstream and downstream configuration of the Serving cell of reshuffling.

Preferably, the method may further include: UE knows by signaling instruction the Serving cell being operated in TDD reconfiguration mode;

Described B comprises: if the current service cell of UE is operated in TDD reconfiguration mode, UE detects the PDCCH of the public search space of current service cell, obtain TDD and reshuffle control information, and reshuffle control information from the TDD obtained the actual TDD upstream and downstream configuration obtaining current service cell;

Wherein, the current service cell of described UE comprises: the community that the PCI that the RRH in the main plot in single community, CA system, CA system Zhong Fu community, CoMP system on diverse location forms is identical.

Preferably, the method comprises further: UE knows by signaling instruction the Serving cell being operated in TDD reconfiguration mode;

Described B comprises: the UE working in CA system detects at least one PDCCH of the public search space of corresponding main plot, obtain at least one TDD and reshuffle control information, and reshuffle control information from least one TDD obtained the actual TDD upstream and downstream configuration obtaining corresponding Serving cell; Wherein, UE determines corresponding to different PDCCH according to carrier index territory (CIF) Serving cell.

Preferably, described B comprises:

The UE working in CA system detects the PDCCH of the specific search volume of corresponding main plot, obtains TDD and reshuffles control information; Or the UE working in CoMP system detects the PDCCH of the specific search volume of the identical community of the PCI of the RRH composition in described CoMP system on diverse location, obtains TDD and reshuffles control information;

Wherein, described TDD reshuffles control information and comprises N number of TDD and reshuffle control information element, and the length that each TDD reshuffles control information element is l bit, indicates a kind of TDD upstream and downstream to configure;

UE knows index that TDD reshuffles control information element and the corresponding relation of index of Serving cell being operated in TDD reconfiguration mode by signaling instruction, and according to the index of described corresponding relation and UE current service cell, reshuffle control information from the TDD obtained the actual TDD upstream and downstream configuration obtaining corresponding Serving cell.

Preferably, described B comprises:

Wherein, described TDD reshuffles control information and comprises N number of TDD and reshuffle control information element, and the length that each TDD reshuffles control information element is l bit, indicates a kind of TDD upstream and downstream to configure; Be filling bit except TDD reshuffles control information in described PDCCH;

UE obtains by signaling instruction the original position that each TDD being operated in the Serving cell of TDD reconfiguration mode reshuffles control information element, and the original position of filling bit, and according to obtained original position, reshuffle control information from described TDD the actual TDD upstream and downstream configuration obtaining corresponding Serving cell.

Preferably, the PDCCH of described specific search volume comprises: the public search space of community and the peculiar search volume of UE.

Preferably, the method comprises further: UE uses the CRC check bit of specific RNTI to described PDCCH to carry out descrambling; Wherein, described specific RNTI is that community is peculiar, configured or agreement regulation, or described specific RNTI is that UE is peculiar, is configured by high-level signaling, is shared by one group of UE by high-level signaling.

Preferably, the form of the PDCCH of described specific search volume comprises: PDCCH form 1C, PDCCH form 1A or PDCCH form 3/3A; Or a kind of form of new definition, and the form of described new definition is identical with the bit number of existing a kind of PDCCH form.

Preferably, described B comprises:

The RNTI that UE configures according to eNB detects ePDCCH in specific PRB resource, obtains TDD and reshuffles control information;

Wherein, described TDD reshuffles control information and comprises N number of TDD and reshuffle control information element, and the length that each TDD reshuffles control information element is l bit, indicates a kind of TDD upstream and downstream to configure; UE knows index that TDD reshuffles control information element and the corresponding relation of index of Serving cell being operated in TDD reconfiguration mode by signaling instruction;

UE, according to the index of described corresponding relation and UE current service cell, reshuffles control information from the TDD obtained the actual TDD upstream and downstream configuration obtaining corresponding Serving cell.

Preferably, described B comprises:

Preferably, the form of described ePDCCH comprises: ePDCCH form 1C, ePDCCH form 1A or ePDCCH form 3/3A; Or a kind of form of new definition, and the form of described new definition is identical with the bit number of existing a kind of PDCCH form.

Preferably, UE reshuffles control information according to TDD described in cycle detection, and the described cycle is specified by agreement or configured by high-level signaling;

The UE working in CA system reshuffles control information with the TDD that the identical or different cycles detects different districts respectively;

In one-period, UE detects a TDD and reshuffles control information on a specific sub-frame position, or the TDD that detection repeats to send respectively on multiple specific sub-frame position reshuffles control information;

The TDD that the UE working in CA system detects different districts respectively in identical or different subframe position reshuffles control information.

Preferably, described B comprises:

Wherein, TDD reshuffles control information and TPC command shares same PDCCH form, and described PDCCH form is PDCCH form 1C, PDCCH form 1A or PDCCH form 3/3A; Or a kind of form of new definition, and the form of described new definition is identical with the bit number of existing a kind of PDCCH form.

Preferably, TDD reshuffles the mode that control information and TPC command share same PDCCH form and comprises with at least one under type:

TDD reshuffles control information and arranges by after forward direction from the original position of described PDCCH form, TPC command from the end position of described PDCCH form by after to march forward row arrangement, middlely add filling bit;

Or TPC command arranges from the original position of described PDCCH form by after forward direction, TDD reshuffle control information from the end position of described PDCCH form by after to march forward row arrangement, middlely add filling bit;

Or TPC command arranges from the original position of described PDCCH form by after forward direction, and from last bit of TPC command, TDD reshuffles control information and arranges by after forward direction, filling bit is added in remaining bit position;

Or, obtain the position of bit sequence determination filling bit from high-level signaling or obtain the original position of filling bit, the index that the index of TPC command and TDD reshuffle control information arranges from the original position of described PDCCH form by after forward direction, and UE reshuffles the actual TDD uplink-downlink configuration of the Serving cell of the index acquisition correspondence of control information according to described TDD;

Or described TDD reshuffles control information and comprises N number of TDD and reshuffle control information element, and the length that each TDD reshuffles control information element is l bit, indicates a kind of TDD upstream and downstream to configure; Filling bit and TPC command is also comprised in described PDCCH, UE obtains by signaling instruction the original position that each TDD being operated in the Serving cell of TDD reconfiguration mode reshuffles control information element, and the original position of filling bit, and according to obtained original position, reshuffle control information from described TDD the actual TDD upstream and downstream configuration obtaining corresponding Serving cell.

Preferably, the method comprises further: if system information (SIB1) indicates subframe 6 to be descending sub frames, UE is the situation work of descending sub frame according to subframe 6, and the subframe 6 being included in Serving cell receives PDSCH/EPDCCH/PMCH/PRS signal and data according to the situation that subframe 6 is descending sub frames.

Preferably, the method comprises further: if system information (SIB1) indicates subframe 6 to be special subframes, and UE wakes up from DRX state between the moment that 2 cycles transmission TDD reshuffle control information, then to send the moment that TDD reshuffles control information from the moment that DRX state is waken up to cycle next time at UE, to subframe 6 adopt in following three kinds of modes any one process:

First kind of way:

UE does not send any upward signal and up channel in the subframe 6 of Serving cell;

UE undesirably receives PDSCH/EPDCCH/PMCH/PRS signal and data in the subframe 6 of Serving cell;

The OFDM symbol of the protection interval of UE undesirably when the subframe 6 of Serving cell is used as special subframe and UpPTS receives any signal;

The second way:

UE is that the situation of special subframe receives PDSCH/EPDCCH signal and data in the subframe 6 of Serving cell according to subframe 6;

The third mode:

UE undesirably receives any signal and data in the subframe 6 of Serving cell.

Preferably, the method comprises further: if system information (SIB1) indicates subframe 6 to be special subframes, and the moment that UE reshuffles control information at cycle transmission TDD is in non-DRX state, and do not detect that TDD reshuffles control information, sending moment that TDD reshuffles control information to cycle next time from this cycle sends the moment that TDD reshuffles control information, then to subframe 6 adopt in following two kinds of modes any one process:

First kind of way:

No matter whether subframe 6 is special subframes, and the OFDM symbol of the protection interval of UE undesirably when the subframe 6 of Serving cell is used as special subframe and UpPTS receives any signal;

The second way:

UE undesirably receives any signal and data in the subframe 6 of Serving cell.

Disclosed herein as well is a kind of subscriber equipment, comprising: configuration module and detection module, wherein:

Described configuration module is for receiving the configuration information of base station, and this configuration information configuration UE is operated in TDD reconfiguration mode;

Described detection module, for detecting PDCCH or ePDCCH that transmission TDD reshuffles control information in specific search volume, obtains the actual TDD upstream and downstream configuration of the Serving cell of reshuffling.

As seen from the above technical solution, the indicating means of TDD upstream and downstream configuration in the TDD reconfiguration system that the application provides and subscriber equipment, UE is by detecting PDCCH or ePDCCH that transmission TDD reshuffles control information in specific search volume, obtain the actual TDD upstream and downstream configuration of the Serving cell of reshuffling, make UE under TDD reshuffles mode of operation, the actual TDD upstream and downstream configuration of Serving cell can be obtained fast, thus UE can normally be worked under TDD reconfiguration mode.

Accompanying drawing explanation

Fig. 1 is the frame structure schematic diagram of the TDD system of LTE;

Fig. 2 is the method flow diagram of PUSCH transmission in the application TDD reconfiguration system;

Fig. 3 is the schematic diagram of the actual TDD upstream and downstream configuration obtaining the Serving cell of reshuffling in the embodiment of the present application one;

Fig. 4 is the schematic diagram of the actual TDD upstream and downstream configuration obtaining the Serving cell of reshuffling in the embodiment of the present application two;

Fig. 5 is that in the embodiment of the present application three, TDD reshuffles control information element index and is operated in the corresponding relation of cell of TDD reconfiguration mode;

Fig. 6 is the schematic diagram of the actual TDD upstream and downstream configuration obtaining the Serving cell of reshuffling in the embodiment of the present application three;

Fig. 7 A ~ Fig. 7 D is the schematic diagram that in the embodiment of the present application five, TDD reshuffles control information element and filling bit instruction;

Fig. 8 is the corresponding relation schematic diagram that in the embodiment of the present application, TDD reshuffles control information element index n and Serving cell c;

Fig. 9 is the schematic diagram of the actual TDD upstream and downstream configuration obtaining the Serving cell of reshuffling in the embodiment of the present application six;

Figure 10 is that in the embodiment of the present application seven, UE there is no situation 1 schematic diagram that up-to-date TDD reshuffles control information;

Figure 11 is that in the embodiment of the present application seven, UE there is no situation 2 schematic diagram that up-to-date TDD reshuffles control information;

Figure 12 is the composition structural representation of the better subscriber equipment of the application one.

Embodiment

For making the object of the application, technical scheme and advantage clearly understand, to develop simultaneously embodiment referring to accompanying drawing, the application is described in further detail.

The application reshuffles scene mainly for TDD.In such a scenario, the configuration of the TDD upstream and downstream of the main plot in CA system and/or auxiliary community will dynamic change independently, and the TDD upstream and downstream configuration of the multiple RRH in CoMP system also may need dynamic change independently.In main plot in CA system and/or auxiliary community and CoMP system, the subframe of multiple RRH can become descending sub frame from sub-frame of uplink independently or become sub-frame of uplink from descending sub frame, and the application proposes: the TDD transmitted by the PDCCH of specific search volume is reshuffled control information and indicates the TDD upstream and downstream of the Serving cell of UE to configure.

The Serving cell (Serving Cell) of UE refers to the community that UE configures.Such as: in CA system, UE is by configuration main plot and at least one auxiliary community, and the main plot of UE configuration and all auxiliary communities are all called the Serving cell of this UE.Again such as: in CoMP system, the community transparent to UE of UE configuration, this is to the transparent community of UE, and namely the data that receive of UE are from multiple RRH, but the community transparent to UE which RRH, UE configuration UE does not know from is called the Serving cell of this UE.Again such as: in single cell system, the community that UE only configures, this community of UE configuration is called the Serving cell of this UE.

TDD upstream and downstream for the main plot in CA system and/or auxiliary community configures the TDD upstream and downstream configuration being called Serving cell in our document below.For the community working in CoMP system, UE can think UE by TDD reshuffle control information obtain TDD upstream and downstream configuration be exactly UE configuration Serving cell TDD upstream and downstream configuration.

The TDD upstream and downstream configuration of the application's instruction is the actual TDD upstream and downstream configuration of dynamic change in TDD reconfiguration system, instead of the TDD upstream and downstream indicated by system information or high-level signaling referred to configures.For the purpose of simplifying the description, described after this paper actual TDD upstream and downstream configuration all refers to the TDD upstream and downstream configuration of dynamic change in TDD reconfiguration system.

In order to realize the object of the application, present applicant proposes the method for the actual TDD upstream and downstream configuration of the information instruction Serving cell that a kind of PDCCH by specific search volume transmits, the Serving cell described in the application comprises following a few class:

Type A: single community (Single Cell), that is: neither community in CA system, the community also in non-CoMP system;

Type B: the main plot in CA system;

Type C: CA system Zhong Fu community;

The PCI(Physical Cell ID of the RRH composition in type D:CoMP system on diverse location) identical community.

Described specific search volume may be public search space, also may be the peculiar search volume of UE, and can be that a UE uses or one group of UE shares, as shown in Figure 2, the method comprises the following steps:

Step 201:UE receives the configuration information of base station, and this configuration information configuration UE is operated in TDD reconfiguration mode.

Step 202:UE detects PDCCH or ePDCCH that transmission TDD reshuffles control information in specific search volume, obtain the actual TDD upstream and downstream configuration of the Serving cell of reshuffling.

Below the concrete indicating means for TDD upstream and downstream configuration actual in TDD reconfiguration system is described.

Embodiment one:

In the present embodiment, by signaling instruction, UE knows whether each Serving cell is operated in TDD reconfiguration mode, such as: know which Serving cell is operated in TDD reconfiguration mode by high-level signaling, which Serving cell is not operated in TDD reconfiguration mode.The technical scheme that the present embodiment provides is applicable to above-mentioned various types of Serving cell.

For the main plot be operated in single community of TDD reconfiguration mode and CA system, UE detects the PDCCH of the public search space of current service cell, reshuffles by the TDD in this PDCCH the actual TDD upstream and downstream configuration that control information obtains current service cell; The form that the TDD of transmission current service cell reshuffles the PDCCH of the public search space of control information may be a kind of existing PDCCH form, such as: the one in PDCCH form 1C, PDCCH form 1A or PDCCH form 3/3A.

For the CA system Zhong Fu community being operated in TDD reconfiguration mode, UE detects the PDCCH of the public search space of corresponding auxiliary cell, reshuffles by the TDD in this PDCCH the actual TDD upstream and downstream configuration that control information obtains current auxiliary cell; The form that the TDD transmitting auxiliary cell reshuffles the PDCCH of the public search space of control information may be a kind of existing PDCCH form, such as: the one in PDCCH form 1C, PDCCH form 1A or PDCCH form 3/3A.

The actual TDD upstream and downstream configuration of main cell may be obtained for the UE being operated in CA system, UE at the PDCCH of the public search space of main cell, and obtain the actual TDD upstream and downstream configuration of auxiliary cell simultaneously at the PDCCH of the public search space of auxiliary cell.The TDD of each cell reshuffles control information and comprises N(such as N=3) bit, represent 7 kinds of configurations in table 1 respectively.

For the community that the PCI of the RRH composition on diverse location in the CoMP system being operated in TDD reconfiguration mode is identical, UE detects the PDCCH of the public search space of Serving cell, reshuffles by the TDD in this PDCCH the actual TDD upstream and downstream configuration that control information obtains current service cell.

The UE being configured with 3 cell for one is below illustrated.3 cell configured are respectively main cell, auxiliary cell1 and auxiliary cell2, wherein: main cell configuration effort is at TDD reconfiguration mode, and auxiliary cell1 configuration effort is at TDD reconfiguration mode, and auxiliary cell2 does not have configuration effort at TDD reconfiguration mode.UE obtains the actual TDD upstream and downstream configuration of main cell at the PDCCH of the public search space of main cell, and UE obtains the actual TDD upstream and downstream configuration of auxiliary cell1 at the PDCCH of the public search space of auxiliary cell1 simultaneously, as shown in Figure 3.

Embodiment two:

In the present embodiment, UE is operated in CA system, and by signaling instruction, UE knows whether each cell is operated in TDD reconfiguration mode, such as: know which cell is operated in TDD reconfiguration mode by high-level signaling, which cell is not operated in TDD reconfiguration mode.The technical scheme that the present embodiment provides is applicable to main plot in CA system and auxiliary community.

For the main cell being operated in TDD reconfiguration mode, UE detects the PDCCH of the public search space of main cell, the actual TDD upstream and downstream configuration that control information obtains main cell is reshuffled by the TDD in this PDCCH, the form of the PDCCH of the public search space of main cell may be a kind of existing PDCCH form, such as: the one in PDCCH form 1C, PDCCH form 1A or PDCCH form 3/3A, or a form for new definition, such as: can called after PDCCH form 1E.

For the auxiliary cell being operated in TDD reconfiguration mode, the actual TDD upstream and downstream configuration of the auxiliary cell that the PDCCH that UE detects the public search space of main cell indicates across carrier wave, reshuffles by the TDD in this PDCCH the actual TDD upstream and downstream configuration that control information obtains auxiliary cell; The form of the PDCCH of the public search space of main cell may be a kind of existing PDCCH form, such as: the one in PDCCH form 1C, PDCCH form 1A or PDCCH form 3/3A.

For the UE being operated in CA system, UE obtains the actual TDD upstream and downstream configuration of main cell at the PDCCH of the public search space of main cell, and obtain the actual TDD upstream and downstream configuration of auxiliary cell at the PDCCH of the public search space of main cell simultaneously, namely on the public search space of UE respectively by main cell, multiple different PDCCH obtains the actual TDD upstream and downstream configuration of main cell and the actual TDD upstream and downstream configuration of auxiliary cell, and what indicate the instruction of each Physical Downlink Control Channel correspondence by carrier index territory (CIF) is the actual TDD upstream and downstream configuration of which cell.The TDD of each cell reshuffles control information and comprises N(such as N=3) bit, represent 7 kinds of configurations in table 1 respectively.

The UE being configured with 2 cell for one is below illustrated.2 cell configured are respectively main cell and auxiliary cell, and the Serving cell index of main cell is 0, suppose that the Serving cell index of auxiliary cell is 1, and main cell and the equal configuration effort of auxiliary cell are at TDD reconfiguration mode.UE obtains the actual TDD upstream and downstream configuration of main cell at the Physical Downlink Control Channel that the CIF-value of the public search space of main cell is 0, and the actual TDD upstream and downstream configuration of auxiliary cell is obtained at the Physical Downlink Control Channel that the CIF-value of the public search space of main cell is 1, as shown in Figure 4.

Embodiment three:

In the present embodiment, for each Serving cell being operated in TDD reconfiguration mode, by special services community, (this special services community is main plot to CA system to UE; To the transparent Serving cell of UE to CoMP scene four, namely concerning UE, UE does not know specifically which RRH, but the actual TDD upstream and downstream configuration that UE can be assumed to the RRH of UE service is all reshuffled the actual TDD upstream and downstream that control information indicates and configured identical with TDD) specific search volume PDCCH in TDD reshuffle the actual TDD upstream and downstream that control information obtains each Serving cell and configure.The actual TDD upstream and downstream configuration of different service cells reshuffles the instruction of control information element by TDD different in PDCCH.The TDD of a Serving cell reshuffles control information and can be shared by one group of UE, and the UE namely in same group adopts identical actual TDD upstream and downstream configuration in this Serving cell.

Described specific search volume can be the public search space of community, also can be the peculiar search volume of UE.Or also can be the public search volume of configuration to one group of UE, in community, all UE configure the special case that identical public search space is this mode.Or, determine that specific search volume is public search space or the peculiar search volume of UE of community by high-level signaling configuration.

Transmit to the public search volume of above-mentioned configuration to one group of UE the method that TDD reshuffles control information, the described public search space to one group of UE can be configured on multiple ECCE of an EPDCCH collection.Such as, before ePDCCH collection on N number of eCCE.Suppose that each ePDCCH of reshuffling of instruction TDD is made up of 4 or 8 eCCE, N equals 8, then can have two be polymerized ranks be 4 alternative EPDCCH and 1 polymerization rank be 8 alternative EPDCCH.Or the ePDCCH that each instruction TDD reshuffles takies eCCE all in this EPDCCH collection, and UE does not need to carry out blind Detecting.Here, because UE can configure be no more than two EPDCCH collection to carry the specific EPDCCH of UE, above-mentioned comprising the EPDCCH collection of the public search space of one group of UE can be one of EPDCCH collection of these two carrying UE specific EPDCCH, such as, the public search space carried further on the EPDCCH collection of which carrying UE specific EPDCCH one group of UE is distinguished by 1 bit high-level signaling.Or above-mentioned comprising can use high-level signaling separate configurations to the EPDCCH collection of the public search space of one group of UE, i.e. the PRB peer parameters that takies of this EPDCCH collection of separate configurations.Like this, UE needs to detect EPDCCH on maximum 3 EPDCCH collection, and in fact, it is identical that base station can configure one of the first two EPDCCH of the 3rd EPDCCH collection and UE.

Detect based on the subframe of the peculiar search volume of UE of ePDCCH being configured with, the distinctive search volume of UE is on multiple eCCE of concentrating of the ePDCCH being defined in UE configuration.According to the definition of current standard, UE needs blind Detecting EPDCCH being no more than to 32 times on the peculiar search volume of this UE.Like this, if in the subframe of the described EPDCCH public search space to one group of UE, not based on the public search space of PDCCH, above-mentioned configuration can not increase ePDCCH blind detection frequency to the public search space of one group of UE.This is because add the blind Detecting of the described public search space to one group of UE, the blind Detecting number of times of UE can reach 32+3=35 time, but this number of times is still less than the maximum blind Detecting number of times 44 of LTE system to each subframe.If in the subframe of the described EPDCCH public search space to one group of UE, also have the public search space based on PDCCH, above-mentioned configuration will increase ePDCCH blind detection frequency to the public search space of one group of UE.If do not wish to increase blind Detecting number of times, this can realize at the blind Detecting number of times of the public search space of PDCCH by reducing some, and ensures that total blind Detecting number of times does not increase.

The form of the PDCCH of the specific search volume of main cell may be a kind of existing PDCCH form, such as: the one in PDCCH form 1C, PDCCH form 1A or PDCCH form 3/3A, or a kind of PDCCH form of new definition.In order to not increase the PDCCH blind Detecting number of times of UE, the bit number of the PDCCH form of new definition is identical with the bit number of existing a kind of PDCCH form, such as: can called after PDCCH form 1E, identical with the bit number of PDCCH form 3/3A.Transmission TDD reshuffles the CRC check bit of the PDCCH of control information by a specific RNTI scrambling.This specific RNTI can be that community is peculiar, is configured or 3GPP agreement is determined by high-level signaling; Or this specific RNTI is the distinctive RNTI of UE, is configured by high-level signaling, can be shared by one group of UE.

The transmission means that a kind of TDD reshuffles control information can be:

TDD reshuffles control information element 1, TDD and reshuffles control information element 2 ..., TDD reshuffles control information element n ... TDD reshuffles control information element N}, each element l bit, altogether l × N bit; Wherein:

L by standard definition, such as l=3;

N is configured by high-level signaling;

N is the index that TDD reshuffles control information element;

L-l*N bit is as filling bit, these filling bits are for UE and base station, it is all the information bit determined, UE is after knowing these information determined, the information that these can be utilized to determine improves the reliability of TDD reconfiguration information decoding, or utilize these filling bits to be virtual CRC, lower the possibility of erroneous judgement.

L reshuffles PDCCH form that control information uses (such as described TDD, PDCCH form 1C, PDCCH form 0, one in PDCCH form 1A or PDCCH form 3/3A, or a kind of PDCCH form of new definition) adding the net load bit number before CRC check bit.

The index n that TDD reshuffles control information element is configured by high-level signaling with the corresponding relation of the cell c being operated in TDD reconfiguration mode.Each TDD reshuffles control information element and comprises l bit, and such as l equals 3, indicates a kind of actual TDD upstream and downstream configuration.For the cell being operated in TDD reconfiguration mode that each UE configures, UE reshuffles the index of control information element according to the TDD that high-level signaling configures and is operated in the corresponding relation of Serving cell of TDD reconfiguration mode, the actual TDD upstream and downstream configuration obtaining the Serving cell that this UE configures is reshuffled in control information, as shown in Figure 5 at TDD.

The UE being configured with 3 cell for one is below illustrated.3 cell configured are respectively main cell, auxiliary cell1 and auxiliary cell2, wherein: main cell configuration effort is at TDD reconfiguration mode, and auxiliary cell1 does not have configuration effort at TDD reconfiguration mode, and auxiliary cell2 configuration effort is at TDD reconfiguration mode.UE reshuffles in control information the actual TDD upstream and downstream configuration of actual TDD upstream and downstream configuration and the auxiliary cell2 obtaining main cell respectively at the TDD of the Physical Downlink Control Channel of the public search space of main cell, as shown in Figure 6.In Physical Downlink Control Channel index be 2 TDD reshuffles the instruction of control information element is the actual TDD upstream and downstream configuration of main cell, what in Physical Downlink Control Channel, index was that the TDD of n reshuffles the instruction of control information element is the actual TDD upstream and downstream configuration of auxiliary cell2.

Described UE need by resolve index in Physical Downlink Control Channel be 2 and index be that the TDD of n reshuffles control information element, the actual TDD upstream and downstream of the actual TDD upstream and downstream configuration and auxiliary cell2 that obtain main cell respectively configures.

The transmission means that another kind of TDD reshuffles control information can be:

Utilize high-level signaling to configure each TDD and reshuffle the original position that TDD corresponding to Cell reshuffles control information element, and the original position of filling bit.

Preferably, the configuration information that the above-mentioned TDD for different TDD reconfiguring cell reshuffles the original position of control information element can be included in same integer sequence, different elements in sequence are corresponding with TDD reconfiguring cell in order, and the original position of last element of sequence instruction filling bit.Such as, as seen in figure 7 c, l the bit n that what first element n in the configuration integer sequence that high-level signaling carries indicated is in PDCCH from n ... n+l-1, the TDD of corresponding is cell1 reshuffles control information, l bit s in the described PDCCH that second element s in the configuration integer sequence that high-level signaling carries indicates from s ... s+l-1, the TDD of corresponding is cell2 reshuffles control information, last element q of the configuration integer sequence that high-level signaling carries indicates the bit in described PDCCH from bit q to bit last in PDCCH, for filling bit.L by standard definition, such as l=3.

The configuration information that the TDD of different TDD reconfiguring cell reshuffles control information original position can configure respectively by different high-level signaling, or the different information element (IE of same high-level signaling, information element) configuration, and the original position of filling bit is configured by another high-level signaling or another IE configures.Such as, as illustrated in fig. 7d, the n instruction of a high-level signaling or IE configuration be l bit n in PDCCH from n ... n+l-1, the TDD of corresponding is cell1 reshuffles control information, l bit s in the described PDCCH of the s instruction that another high-level signaling or another IE configure from s ... s+l-1, the TDD of corresponding is cell2 reshuffles control information, the q that another high-level signaling or another IE configure indicates the bit in described PDCCH from bit q to bit last in PDCCH, is filling bit.L by standard definition, such as l=3.

Embodiment four:

In the present embodiment, the RNTI that UE configures according to eNB detects ePDCCH in specific PRB resource (such as: the specific PRB resource of main plot), obtains TDD and reshuffles control information; Then the TDD uplink-downlink configuration of respective service community is obtained according to the Serving cell index value of eNB instruction.

Wherein, UE obtains above-mentioned RNTI by detecting eNB signaling.Specific PRB resource can comprise a PRB or multiple PRB, UE and obtain by the signaling instruction detecting eNB the number of PRB and the position of each PRB that above-mentioned PRB resource comprises.More specifically, the position of the eCCE that above-mentioned ePDCCH takies in above-mentioned PRB resource and number also can be configured by eNB or directly be defined by standard, if configured by eNB, UE can obtain relevant configuration information by the signaling receiving eNB.The form of above-mentioned ePDCCH may be a kind of existing ePDCCH form, such as: the one in ePDCCH form 1C, ePDCCH form 1A or ePDCCH form 3/3A, or a kind of form of new definition, such as: can called after ePDCCH form 1E.

A kind of transmission means that TDD reshuffles control information in ePDCCH can be:

L by standard definition, such as l=3;

N is configured by high-level signaling;

N is the index that TDD reshuffles control information element;

Wherein, L reshuffles PDCCH form that control information uses (such as described TDD, the one of the PDCCH form of PDCCH form 1C, PDCCH form 0, PDCCH form 1A or PDCCH form 3/3A or a kind of new definition) adding the net load bit number before CRC check bit.

TDD reshuffles the TDD uplink-downlink configuration that control information element index n is used to indicate Serving cell c, and UE obtains Serving cell index value by the high-level signaling indication information receiving eNB, thus determines the index c of Serving cell and the corresponding relation of index n.

The transmission means that another kind TDD in ePDCCH reshuffles control information can be:

Preferably, the configuration information that the above-mentioned TDD for different TDD reconfiguring cell reshuffles the original position of control information element can be included in same integer sequence, different elements in sequence are corresponding with TDD reconfiguring cell in order, and the original position of last element of sequence instruction filling bit.Such as, as seen in figure 7 c, l the bit n that what first element n in the configuration integer sequence that high-level signaling carries indicated is in PDCCH from n ... n+l-1, the TDD of corresponding is cell1 reshuffles control information, the bit s of l in the described PDCCH that second element s in the configuration integer sequence that high-level signaling carries indicates from s ... s+l-1, the TDD of corresponding is cell2 reshuffles control information, last element q of the configuration integer sequence that high-level signaling carries indicates the bit in described PDCCH from bit q to bit last in PDCCH, for filling bit.L by standard definition, such as l=3.

Embodiment five:

In the present embodiment, for each Serving cell being operated in TDD reconfiguration mode, by special services community, (this special services community is main plot to CA system to UE; To the transparent Serving cell of UE to CoMP scene four, namely concerning UE, UE does not know specifically which RRH, but the actual TDD upstream and downstream configuration that UE can be assumed to the RRH of UE service is all reshuffled the actual TDD upstream and downstream that control information indicates and configured identical with TDD) public search space PDCCH in TDD reshuffle the actual TDD upstream and downstream that control information obtains each Serving cell and configure.The actual TDD upstream and downstream configuration of different service cells reshuffles the instruction of control information element by TDD different in PDCCH.The TDD of a Serving cell reshuffles control information and can be shared by one group of UE, and the UE namely in same group adopts identical actual TDD upstream and downstream configuration in this Serving cell.

TDD reshuffles control information and power and controls (TPC) and order and share same PDCCH form, this PDCCH form can be PDCCH form 1C, one in PDCCH form 1A or PDCCH form 3/3A, or a kind of PDCCH form of new definition, if be the PDCCH form of new definition, then the bit number of this PDCCH form is identical with the bit number of existing a kind of PDCCH form, in order to avoid increase the PDCCH blind check number of times of UE, such as: can called after PDCCH form 1E, identical with the bit number of PDCCH form 3/3A, the present embodiment description is below described for PDCCH form 3/3A.

The form of the PDCCH of the public search space of main cell is PDCCH form 3/3A.TDD reshuffles control information and TPC command shares same PDCCH form 3/3A, and namely TDD reshuffles control information and embeds in the PDCCH form 3/3A of existing transmission TPC command.TDD reshuffles control information and TPC command and shares same PDCCH form 3/3A and can save resource shared by public search space, because the TDD bit of reshuffling shared by control information is fewer sometimes, and the information bit of PDCCH is many, TDD reshuffles control information and takies separately a PDCCH and can waste resource very much.

A kind of TDD reshuffles the mode that control information and TPC command share same PDCCH form:

TDD reshuffles control information and arranges by after forward direction from the original position of PDCCH form 3/3A, TPC command from the end position of PDCCH form 3/3A by after to march forward row arrangement, middlely add filling bit; Or TPC command arranges from the original position of PDCCH form 3/3A by after forward direction, TDD reshuffle control information from the end position of PDCCH form 3/3A by after to march forward row arrangement, middlely add filling bit.These filling bits are for UE and base station, be all the information bit determined, UE is after knowing these information determined, the information that these can be utilized to determine improves the reliability of TDD reconfiguration information decoding, or utilize these filling bits to be virtual CRC, lower the possibility of erroneous judgement.For example:

TPC command in the original position of PDCCH form 3/3A in the past towards arranging below, TDD reshuffles control information and forwardly arranges from behind at the end position of PDCCH form 3/3A, filling bit is added in the bit position of intermediate rest, that is: { TPC command 1, TPC command 2, TPC command M-1, TPC command M, filling bit, TDD reshuffles control information element N ... TDD reshuffles control information element n ... TDD reshuffles control information element 2, TDD and reshuffles control information element 1}.

It is l bit that each TDD reshuffles control information element, altogether l × N bit; Each TPC command is p bit, altogether p × M-bit, and the TPC command p of each PDCCH form 3 equals 2 bits, and the TPC command p of each PDCCH form 3A equals 1 bit, wherein:

L by standard definition, such as l=3;

N is the number that TDD reshuffles control information element, is configured by high-level signaling;

N is the index that TDD reshuffles control information element;

M is the number of TPC command, is configured by high-level signaling;

L ₀-l*N-p*M bit as filling bit, L ₀for PDCCH form 0 is adding the net load bit number before CRC check bit.According to prior art, PDCCH form 0, PDCCH form 1A are identical with the length of PDCCH form 3/3A, usually represent the length of above-mentioned various form by the length of PDCCH form 0.

Another kind of TDD reshuffles the mode that control information and TPC command share same PDCCH form:

TPC command arranges from the original position of PDCCH form 3/3A by after forward direction, and from last bit of TPC command, TDD reshuffles control information and arranges by after forward direction, filling bit, that is: { TPC command 1, TPC command 2 are added in remaining bit position, TPC command M-1, TPC command M, TDD reshuffle control information element 1, TDD and reshuffle control information element 2, TDD reshuffles control information element n,, TDD reshuffles control information element N, filling bit }.These filling bits are for UE and base station, be all the information bit determined, UE is after knowing these information determined, the information that these can be utilized to determine improves the reliability of TDD reconfiguration information decoding, or utilize these filling bits to be virtual CRC, lower the possibility of erroneous judgement.Wherein:

L by standard definition, such as l=3;

N is the index that TDD reshuffles control information element;

M is the number of TPC command, is configured by high-level signaling;

L ₀-l*N-p*M bit as filling bit, L ₀for PDCCH form 0 is adding the net load bit number before CRC check bit.

Another TDD reshuffles the mode that control information and TPC command share same PDCCH form:

The position of the bit sequence instruction filling bit utilizing high-level signaling to carry, as shown in Figure 7 A, or the q of high-level signaling configuration indicates the bit in described PDCCH from bit q to bit last in PDCCH to be filling bit, as shown in Figure 7 B.Filling bit is for UE and base station, be all the information bit determined, UE is after knowing these information determined, the information that these can be utilized to determine improves the reliability of TDD reconfiguration information decoding, or utilize these filling bits to be virtual CRC, lower the possibility of erroneous judgement.

And the index that the index of TPC command and TDD reshuffle control information arranges from the original position of PDCCH form 3/3A by after forward direction.

TDD reshuffles the TDD uplink-downlink configuration that control information element index n is used to indicate Serving cell c, UE obtains Serving cell index value by the high-level signaling indication information receiving eNB, thus determine the index c of Serving cell and the corresponding relation of index n, as shown in Figure 8.

Utilize high-level signaling to configure each TDD and reshuffle the original position that TDD corresponding to Cell reshuffles control information element, and the original position of filling bit, and the position of TPC command is conventionally determined, does not repeat them here.

Preferably, the configuration information that the above-mentioned TDD for different TDD reconfiguring cell reshuffles the original position of control information element can be included in same integer sequence, different elements in sequence are corresponding with TDD reconfiguring cell in order, and the original position of last element instruction filling bit of sequence, such as.As seen in figure 7 c, l the bit n that what first element n in the configuration integer sequence that high-level signaling carries indicated is in PDCCH from n ... n+l-1 instruction be that the TDD of cell1 reshuffles control information, bit s in the described PDCCH that second element s in the configuration integer sequence that high-level signaling carries indicates ... s+l-1 instruction be that the TDD of cell2 reshuffles control information, last element q of the configuration integer sequence that high-level signaling carries indicates the bit in described PDCCH from bit q to bit last in PDCCH, is filling bit.L by standard definition, such as l=3.

Preferably, the above-mentioned configuration information of reshuffling control information original position for different TDD reconfiguring cell can configure respectively by different high-level signaling, or the different information element (IE of same high-level signaling, information element) configuration, and the original position of filling bit is configured by another high-level signaling or another IE configures.Such as, as illustrated in fig. 7d, the n instruction of a high-level signaling or IE configuration be l bit n in PDCCH from n ... n+l-1, the TDD of corresponding is cell1 reshuffles control information, l bit s in the described PDCCH of the s instruction that another high-level signaling or another IE configure from s ... s+l-1, the TDD of corresponding is cell2 reshuffles control information, the q that another high-level signaling or another IE configure indicates the bit in described PDCCH from bit q to bit last in PDCCH, is filling bit.L by standard definition, such as l=3.

Embodiment six:

It can be send in the cycle that the TDD being used to indicate the configuration of actual TDD upstream and downstream reshuffles control information, such as, be spaced apart the cycle with 10 milliseconds, 40 milliseconds or other and send.TDD reshuffles the cycle that control information sends and is specified by 3GPP agreement or configured by high-level signaling, and the TDD being configured to the different cell of the UE of CA reshuffles the cycle that control information sends can be identical, also can be different.It can be different that the TDD that different cycles sends reshuffles control information, also may be identical.In one-period, TDD reshuffles control information and can send once on specific sub-frame position, described specific sub-frame position can be specified by 3GPP agreement or be configured by high-level signaling, or in one-period, TDD reshuffles control information and can repeat to send on multiple specific sub-frame position, the TDD being configured to the different cell of the UE of CA reshuffles the subframe position that control information sends can be identical, also can be different.

Such as, under high-level signaling configuration UE works in CA system pattern, be configured with cell1 and cell2, cell1 and cell2 is all configured to be operated in TDD reconfiguration mode, the transmission cycle that the TDD of cell1 and cell2 reshuffles control information is all configured to 10 milliseconds, and the subframe that cell1 with cell2 transmission TDD reshuffles control information is identical, all sends in subframe 0, as shown in Figure 9.

Embodiment seven:

The present embodiment is described in high-level signaling configuration UE and works in TDD reconfiguration mode in Serving cell, and UE there is no up-to-date TDD when reshuffling control information, and due to when TDD reshuffles, subframe 6 may be normal descending sub frame or special subframe.

If system information (SIB1) indicates subframe 6 to be descending sub frames, subframe 6 can not become special subframe.In this case, UE is that the method for descending sub frame processes in the subframe 6 of Serving cell according to subframe 6, and wherein, comprising UE is that the method for descending sub frame receives PDSCH/EPDCCH/PMCH/PRS data in the subframe 6 of Serving cell according to subframe 6;

If system information (SIB1) indicates subframe 6 to be special subframes, subframe 6 may be special subframe, also may be descending sub frame.If UE have received up-to-date TDD and reshuffles control information, UE just can know that subframe 6 is normal descending sub frame or special subframe, and UE just can process subframe 6 according to the situation of normal descending sub frame or special subframe respectively; If UE does not receive up-to-date TDD and reshuffles control information, UE will be caused not know, and subframe 6 is normal descending sub frame or special subframe, and therefore, the present embodiment is described the certain operations of UE to subframe 6 in this case.UE there is no up-to-date TDD and reshuffles control information and be divided into following two all situations.

Situation 1:UE wakes up from DRX state between the moment that 2 cycles transmission TDD reshuffle control information, that is: the moment UE reshuffling control information at previous cycle transmission TDD is in DRX state, to send moment that TDD reshuffles control information during this period of time from the moment that DRX state is waken up to cycle next time, UE does not know the actual TDD upstream and downstream configuration of Serving cell, and base station knows that UE does not know the actual TDD upstream and downstream configuration of Serving cell.As shown in Figure 10, TDD reshuffles control information and sends in subframe 0, in subframe 0 moment, UE is in DRX state, can not receive TDD and reshuffle control information, in subframe 4, UE transfers non-DRX state to from DRX state, in subframe 4 to these subframes of subframe 9, UE does not know the actual TDD upstream and downstream configuration of Serving cell, and base station knows that UE does not know the actual TDD upstream and downstream configuration of Serving cell.

The moment that situation 2:UE reshuffles control information at cycle transmission TDD is not in DRX state, but do not detect that the TDD that base station sends reshuffles control information, causing sending moment that TDD reshuffles control information to cycle next time from this cycle sends the moment that TDD reshuffles control information, UE does not know the actual TDD upstream and downstream configuration of Serving cell, to this, base station is also ignorant, that is: base station does not know that UE does not know the actual TDD upstream and downstream configuration of Serving cell.As shown in figure 11, TDD reshuffles control information and sends in subframe 0, in subframe 0 moment, UE is in non-DRX state, but reshuffle control information at the unsuccessful TDD of detecting of this moment UE, in subframe 0 to these subframes of subframe 9, UE does not know the actual TDD upstream and downstream configuration of Serving cell, and base station does not know that UE does not know the actual TDD upstream and downstream configuration of Serving cell.

Be described by the operation of situation 1 and situation 2 pairs of subframes 6 respectively below.

Situation 1:

A kind of processing mode to subframe 6 is:

The OFDM symbol of the protection interval of UE undesirably when the subframe 6 of Serving cell is used as special subframe and UpPTS receives any signal.

Another kind to the processing method of subframe 6 is:

Another to the processing method of subframe 6 is:

UE undesirably receives any signal and data in the subframe 6 of Serving cell.

Situation 2:

A kind of processing method to subframe 6 is:

No matter whether subframe 6 is special subframes, and the OFDM symbol of the protection interval of UE undesirably when the subframe 6 of Serving cell is used as special subframe and UpPTS receives any signal.

Another kind to the processing method of subframe 6 is:

UE undesirably receives any signal and data in the subframe 6 of Serving cell.

Corresponding to said method, present invention also provides a kind of subscriber equipment, as shown in figure 12, this subscriber equipment comprises: configuration module and detection module, wherein:

As seen from the above technical solution, the indicating means of actual TDD upstream and downstream configuration in the TDD reconfiguration system that the application provides and subscriber equipment, UE is by detecting PDCCH or ePDCCH that transmission TDD reshuffles control information in specific search volume, obtain the actual TDD upstream and downstream configuration of the Serving cell of reshuffling, make UE under TDD reshuffles mode of operation, the actual TDD upstream and downstream configuration of Serving cell can be obtained fast, thus UE can normally be worked under TDD reconfiguration mode.

The foregoing is only the preferred embodiment of the application, not in order to limit the application, within all spirit in the application and principle, any amendment made, equivalent replacements, improvement etc., all should be included within scope that the application protects.

Claims

1. an indicating means for TDD upstream and downstream configuration, is applied to TDD reconfiguration system, it is characterized in that, comprising:

2. method according to claim 1, is characterized in that:

The method comprises further: UE knows by signaling instruction the Serving cell being operated in TDD reconfiguration mode;

3. method according to claim 1, is characterized in that:

4. method according to claim 1, is characterized in that, described B comprises:

5. method according to claim 1, is characterized in that, described B comprises:

6. the method according to claim 4 or 5, is characterized in that:

The PDCCH of described specific search volume comprises: the public search space of community and the peculiar search volume of UE.

7. the method according to claim 4 or 5, is characterized in that:

The method comprises further: UE uses the CRC check bit of specific RNTI to described PDCCH to carry out descrambling; Wherein, described specific RNTI is that community is peculiar, configured or agreement regulation, or described specific RNTI is that UE is peculiar, is configured by high-level signaling, is shared by one group of UE by high-level signaling.

8. the method according to any one of claim 1 to 5, is characterized in that:

The form of the PDCCH of described specific search volume comprises: PDCCH form 1C, PDCCH form 1A or PDCCH form 3/3A; Or a kind of form of new definition, and the form of described new definition is identical with the bit number of existing a kind of PDCCH form.

9. method according to claim 1, is characterized in that:

Described B comprises:

10. method according to claim 1, is characterized in that:

Described B comprises:

11. methods according to claim 1,9 or 10, is characterized in that:

The form of described ePDCCH comprises: ePDCCH form 1C, ePDCCH form 1A or ePDCCH form 3/3A; Or a kind of form of new definition, and the form of described new definition is identical with the bit number of existing a kind of PDCCH form.

12. according to claim 1 to 5,9, method described in 10 any one, it is characterized in that:

UE reshuffles control information according to TDD described in cycle detection, and the described cycle is specified by agreement or configured by high-level signaling;

13. methods according to claim 1, is characterized in that, described B comprises:

14. methods according to claim 13, is characterized in that, TDD reshuffles the mode that control information and TPC command share same PDCCH form and comprises with at least one under type:

15. methods according to claim 12, it is characterized in that, the method comprises further:

If system information SIB1 indicates subframe 6 to be descending sub frames, UE is the situation work of descending sub frame according to subframe 6, and the subframe 6 being included in Serving cell receives PDSCH/EPDCCH/PMCH/PRS signal and data according to the situation that subframe 6 is descending sub frames.

16. methods according to claim 12, it is characterized in that, the method comprises further:

If system information SIB1 indicates subframe 6 to be special subframes, and UE wakes up from DRX state between the moment that 2 cycles transmission TDD reshuffle control information, then to send the moment that TDD reshuffles control information from the moment that DRX state is waken up to cycle next time at UE, to subframe 6 adopt in following three kinds of modes any one process:

First kind of way:

The second way:

The third mode:

UE undesirably receives any signal and data in the subframe 6 of Serving cell.

17. methods according to claim 12, it is characterized in that, the method comprises further:

If system information SIB1 indicates subframe 6 to be special subframes, and the moment that UE reshuffles control information at cycle transmission TDD is in non-DRX state, and do not detect that TDD reshuffles control information, sending moment that TDD reshuffles control information to cycle next time from this cycle sends the moment that TDD reshuffles control information, then to subframe 6 adopt in following two kinds of modes any one process:

First kind of way:

The second way:

UE undesirably receives any signal and data in the subframe 6 of Serving cell.

18. 1 kinds of subscriber equipmenies, is characterized in that, comprising: configuration module and detection module, wherein: