WO2014048273A1

WO2014048273A1 - Method, device and system for carrier type identification

Info

Publication number: WO2014048273A1
Application number: PCT/CN2013/083825
Authority: WO
Inventors: 苟伟; 戴博; 鲁照华; 夏树强
Original assignee: 中兴通讯股份有限公司
Priority date: 2012-09-29
Filing date: 2013-09-18
Publication date: 2014-04-03
Also published as: CN103716122A

Abstract

Disclosed in the present invention are a method, device and system for carrier type identification. According to the carrier type being used, a system-side network element configures for a carrier the carrier type information corresponding to said carrier, and then sends said information. The carrier type identification technique disclosed in the present invention can help newer versions of UE to effectively identify carrier types, which reduces access time for UEs and make UEs more energy-efficient.

Description

Method, device and system for realizing carrier type identification

The present invention relates to the field of communications, and in particular, to a method, apparatus and system for implementing carrier type identification. Background technique

With the development of the mobile communication industry and the growing demand for mobile data services, people are increasingly demanding the speed and quality of service (Qos) of mobile communications, so there is no big third-generation mobile communication (3G). Before the scale of commercial use, research and development work on the next generation mobile communication system has begun, and the typical example is the Long Term Evolution (LTE) project initiated by the 3rd Generation Partnership Project (3GPP). With the further evolution of the network, LTE-A (Enhanced LTE), as an evolution system of LTE, can provide spectrum bandwidth of up to 100MHz, support more flexible and higher quality communication, and LTE-A system has good backward compatibility. Sex. In the LTE-A system, there are multiple component carriers (CCs), one LTE terminal can only work on one backward compatible CC, and the stronger LTE-A terminal can simultaneously on multiple CCs. The transmission (this technique is called multi-carrier aggregation technology) achieves the purpose of increasing bandwidth.

In the current research, based on the multi-carrier aggregation technology, the LTE R11 phase puts forward new requirements for spectrum resource utilization, network energy conservation, and interference suppression between cells. In order to achieve this, a new carrier type (NCT) has been proposed, which is applied by means of carrier aggregation technology. The new carrier has a distinctive feature, that is, it does not need to consider backward compatibility when designing, and more new technologies can be applied in it. For example, the definition of a new carrier in LTE R11 is: It needs to be paired with at least one compatible carrier (also referred to as carrier carrier mode operation with a compatible carrier), and no cell reference of LTE R8 is configured in the new carrier. Cell-specific reference signals (CRS) to avoid serious CRS interference at the cell edge of neighboring cells.

In LTE R12, not only to continue to study the NCT of LTE R11, but also to further add other NCT technologies, such as the stand-alone operation NCT (standalone NCT). In order to distinguish it from the NCT in LTE R11, since the NCT in LTE R11 needs to configure a backward compatible carrier, it is called non-standalone NCT, and part of the channel/signaling is deleted in the non-independent operation NCT. So, it needs to operate with its paired compatible carrier.

In this way, there are two types of independently operated NCT and backward compatible carriers in LTE R12, and the backward compatible carrier has independent operation capability. Thus, LTE R12 has two different modes and independently operated carriers, one The type is NCT, one is a backward compatible carrier, and the channel configuration/data scheduling transmission/signaling configuration/reference signal transmission in the two carriers are not completely the same, but the user equipment (UE) is accessing the LTE R12 carrier. The carrier type is not recognized, which causes the following problems in the UE: 1. The new version of the UE (for example, the LTE R12 UE, the same below) needs to try to receive system information, reference signals, etc. according to the mechanism of the compatible carrier and the new mechanism of the NCT. The UE is charged and time consuming. 2. The old version of the UE (for example, the UE before LTE R12) receives system information, reference signals, etc. according to the compatible carrier mechanism. If the NCT is encountered, the UE may not access the NCT after some attempts. The UE charges electricity and takes time. Summary of the invention

In view of this, the main objective of the embodiments of the present invention is to provide a method, an apparatus, and a system for implementing carrier type identification, so that a new version of UE can effectively identify a carrier type.

To achieve the above objective, the technical solution of the embodiment of the present invention is implemented as follows:

A method for implementing carrier type identification includes:

The system side network element configures the type information of the corresponding carrier in the carrier according to the type of the deployed carrier, and sends the configured type information of the carrier.

Wherein, when the system side network element configures the type information of the carrier, the transmission is performed on the carrier. Strong) physical broadcast channel (e) The cyclic redundancy check CRC of the PBCH is scrambled using a predetermined scrambling code; wherein the agreed scrambling code is used to indicate the type of the carrier; or,

Configured to transmit the agreed physical cell ID/discovery (signal/channel) sequence corresponding to the carrier type in the carrier; or,

Configuring to transmit a sequence in a carrier according to a time domain location and/or a frequency domain location corresponding to a carrier type; wherein the sequence includes discovery signaling, or a primary/secondary synchronization sequence; or

The type information of the carrier is set in the main system information block MIB or the system information block SIB1 of the carrier transmission.

The method further includes:

When the carrier type is the new carrier NCT, the public downlink control information is transmitted through the enhanced physical downlink control channel (ePDCCH). When the carrier type is a normal carrier, the public downlink control information is transmitted through the ePDCCH or the physical downlink control channel PDCCH.

The method further includes:

The system side network element configures and transmits the corresponding PSS/SSS according to the PSS/SSS structure corresponding to the carrier type of the carrier, or configures and transmits the corresponding PBCH according to the ePBCH/PBCH structure corresponding to the carrier type of the carrier.

The carrier type includes: a compatible carrier, an NCT, an MTC dedicated carrier, or a multimedia broadcast multicast service MBMS dedicated carrier.

The method further includes:

When the UE is accessed by the carrier, the UE receives the type information of the carrier in the carrier to determine the carrier type, and determines the manner of receiving the information in the carrier according to the carrier type.

A method for implementing carrier type identification includes:

When the UE accesses the carrier, the carrier type is determined by analyzing the type information of the carrier in the carrier, and the manner of receiving the information in the carrier is determined according to the carrier type.

When the UE determines the carrier type, the received (e) PBCH is decoded to obtain a CRC. De-scrambling the CRC, obtaining a scrambling code added to the CRC, and determining the type of the carrier according to the scrambling code; or

Determining the type of the carrier according to the carrier type corresponding to the received physical cell ID/set to which the discovery sequence belongs; or

The carrier type is determined according to the time domain position and/or the frequency domain position of the received sequence/channel; or, the carrier type is determined according to the type information of the carrier in the received MIB or SIB1.

The method further includes:

When the carrier type is the NCT, the UE detects the public search space corresponding to the ePDCCH, and obtains the public downlink control information. When the carrier type is the normal carrier, the UE detects the public search space corresponding to the ePDCCH or the PDCCH, and obtains the public downlink control information.

The method further includes:

The UE determines the type of the carrier according to the time domain location and/or the frequency domain location of the received PSS/SSS and/or the interval between the PSS and the SSS, or according to the received (e)PBCH time domain location and/or frequency domain location Determine the type of carrier.

The carrier type includes: a compatible carrier, an NCT, an MTC dedicated carrier, or an MBMS dedicated carrier.

The type information of the carrier that is received by the UE is sent by the system side network element. Before the UE receives the type information of the carrier, the method further includes:

A device for implementing carrier type identification, configured as:

The type information of the corresponding carrier is configured in the carrier according to the type of the deployed carrier, and the configured type information of the carrier is sent.

The device is configured to scramble the CRC of the (e) PBCH transmitted in the carrier by using an agreed scrambling code when configuring the type information of the carrier; where the agreed scrambling code is used to indicate Type of wave; or,

The type information of the carrier is set in the MIB or SIB1 of the carrier transmission.

The device is further configured to transmit the public downlink control information by using the ePDCCH when the carrier type is the NCT. When the carrier type is the normal carrier, the device is further configured to transmit the public downlink control information by using the ePDCCH or the PDCCH.

The device is further configured to:

Configure and send the corresponding PSS/SSS according to the PSS/SSS structure corresponding to the carrier type of the carrier, or configure and send the corresponding PBCH according to the ePBCH/PBCH structure corresponding to the carrier type of the carrier.

The device is a system side network element, including a base station, a relay station, and a radio remote head RRH. A device for implementing carrier type identification, configured as:

When the carrier accesses, the type information of the carrier in the carrier is parsed to determine the carrier type, and the manner of subsequently receiving the information in the carrier is determined according to the carrier type.

When determining the carrier type, the device is configured to decode the received (e) PBCH, obtain a CRC, descramble the CRC, obtain a scrambling code added to the CRC, and determine a carrier type according to the scrambling code; Or,

Determining the carrier type based on the time domain location and/or frequency domain location of the received sequence/channel; or, The carrier type is determined according to the type information of the carrier in the received MIB or SIB1.

When the carrier type is the NCT, the device is further configured to detect the public search space corresponding to the ePDCCH, and obtain the public downlink control information. When the carrier type is the normal carrier, the device is further configured to detect the publicity corresponding to the ePDCCH or the PDCCH. Search space, get public downlink control information.

The device is further configured to:

Determining the type of carrier according to the time domain location and/or frequency domain location of the received PSS/SSS and/or the interval between the PSS and the SSS, or according to the time domain location and/or frequency domain location of the received (e) PBCH The type of carrier.

The device is a UE.

A system for implementing carrier type identification includes a system side network element and a UE. The system side network element is configured to configure a type information of a corresponding carrier in a carrier according to the type of the deployed carrier, and send the configured device. Type information of the carrier;

And configuring, by the UE, the type information of the carrier in the carrier to determine the carrier type, and determining, according to the carrier type, a manner of subsequently receiving information in the carrier.

The system side network element includes a base station, a relay station, and an RRH.

The technology for implementing the carrier type identification in the embodiment of the present invention can help the new version of the UE to effectively identify the carrier type, which is beneficial for the UE to reduce the access time and make the UE more power efficient. DRAWINGS

FIG. 1 is a schematic flowchart of implementing carrier type identification according to an embodiment of the present invention. detailed description

In actual application, on the system side, the system-side network element may configure the type information of the corresponding carrier in the carrier according to the type of the deployed carrier, and send the configured type information of the carrier.

When the system side network element configures the type information of the carrier, the cyclic redundancy check (CRC) of the (enhanced) physical broadcast channel ((e)PBCH) transmitted in the carrier may be scrambled by the agreed scrambling code. The agreed scrambling code is used to indicate the type of the carrier, or both the type of the carrier and the number of antenna ports; or

The agreed physical cell ID sequence/discovery (signal/channel) sequence corresponding to the carrier type transmitted in the carrier, wherein the agreed physical cell ID sequence/discovery (signal/channel) sequence may be the carrier type specified in advance a sequence in a collection; or,

The sequence/channel is configured to transmit in the carrier according to a time domain location and/or a frequency domain location corresponding to the carrier type. The sequence includes discovery signaling, or a primary/secondary synchronization sequence, where the channel includes PBCH, ePBCH (enhanced); or

The carrier type information is set and transmitted in the Master Information Block (MIB) or System Information Block 1, SIB1 of the carrier transmission. The numbers in SIB1 are used to indicate the type of SIB.

Specifically, when the carrier type is NCT, the public downlink control information may be transmitted through the enhanced physical downlink control channel (ePDCCH). When the carrier type is a normal carrier, the ePDCCH or the physical downlink control channel (PDCCH) may be transmitted. Public downlink control information.

The carrier types include: compatible carrier, NCT, machine type communication (MTC) dedicated carrier or multimedia broadcast multicast service (MBMS) dedicated carrier.

The system side network element may configure and transmit the corresponding PSS/SSS according to the structure of the primary/secondary synchronization signal (PSS/SSS) corresponding to the carrier type of the carrier (including the PSS/SSS time domain and the frequency domain location), or may be according to the carrier. The structure of the ePBCH/PBCH (used to carry the MIB) corresponding to the carrier type Set and send the corresponding ePBCH/PBCH.

The system side network element includes a base station and a relay station.

On the UE side, when the UE accesses through the carrier, the type information of the carrier in the carrier may be received and analyzed to determine the carrier type, and the manner of subsequently receiving the information in the carrier is determined according to the carrier type.

When the UE determines the carrier type, the received (e) PBCH may be decoded to obtain a CRC, and the CRC is descrambled to obtain a scrambling code therein, and the carrier type is determined according to the carrier type corresponding to the scrambling code agreement, or according to the carrier type. The carrier type corresponding to the scrambling code convention to simultaneously determine the carrier type and the number of antenna ports; or

Specifically, when the carrier type is the NCT, the UE may detect the public search space corresponding to the ePDCCH, and obtain the public downlink control information. When the carrier type is the normal carrier, the UE may detect the public search space corresponding to the ePDCCH or the PDCCH, and obtain the public downlink. Control information.

The UE may determine the type of the carrier according to the time domain location and/or the frequency domain location of the received PSS/SSS and/or the interval between the PSS and the SSS, and the UE may also according to the time domain location of the received (e) PBCH and/or The frequency domain location determines the type of carrier.

The carrier type includes: a compatible carrier, an NCT, an MTC dedicated carrier, or an MBMS dedicated carrier. For carriers of LTE R12 and later versions, since there are different types of carriers (ie, carriers are different in channel configuration/signaling mechanism/data transmission mechanism), if it is determined during UE access, Carrier type of access or channel configuration in carrier Information such as status/signal transmission status/data transmission status can shorten the time for UE access and save power.

There are many possible schemes for implementing carrier type identification. Only four of them are described below as an example.

Solution 1, the system side network element scrambles the (e)PBCH CRC by a predefined 4 code for different carrier types, and sends the scrambled (e) PBCH. The system side network element may be a base station (for example, a base station in the embodiment of the present invention), a relay station, a radio remote head (RRH), and the like, as long as it is a network element with control capability on the network side.

The UE receives and parses the PBCH, confirms the scrambling code of the CRC of the PBCH, and determines the type of the carrier according to the correspondence between the scrambling code and the carrier type.

It should be noted that the carrier type includes an NCT, a compatible carrier, an MTC carrier, an MBMS carrier, and the like. The difference in the carrier type is actually caused by the different channel/signaling/data scheduling modes in the carrier. Therefore, all the solutions in the embodiments of the present invention can be used to indicate one or more channel configurations in the carrier/ The configuration of the signaling configuration/data scheduling mode/reference signal, for example, whether the system message indicating the carrier is scheduled to be transmitted through the PDCCH or the ePDCCH scheduling, or indicates whether the reference signal in the carrier is transmitted according to the CRS of the R8 or according to the R12. It is defined by the CRS with a period of 5ms, or indicates whether the feedback mechanism used in the carrier is the PHICH mechanism or the ePHICH mechanism. For example, the signaling configuration includes: when the carrier type is NCT, transmitting public downlink control information by using an ePDCCH; when the carrier type is a compatible carrier, transmitting public downlink control information by using an ePDCCH or a PDCCH.

In a standardized manner, a series of the scrambling codes can be standardized, and the scrambling code is corresponding to the carrier type or other carrier characteristics to be indicated, or a certain scrambling code corresponds to the carrier type and the number of antenna ports at the same time, such a The scrambling code can describe both the carrier type and the number of antenna ports. Then, when transmitting the carrier, the base station selects the corresponding scrambling code to scramble the CRC of the (e) PBCH according to the carrier type or the channel, signaling, etc. in the carrier, and The scrambled (e) PBCH is transmitted in the carrier. After receiving the (e)PBCH in the carrier and parsing it, the new version of the UE confirms the scrambling code, and confirms the type of the carrier or the antenna in the carrier according to the correspondence between the scrambling code and the carrier type and the number of antenna ports in the standardized result. Information such as the number of ports, channels, signaling, reference signals, and data transmission modes, so that subsequent related data is received according to channels, signaling, reference signals, and data transmission modes in the carrier, and it is no longer necessary to test one by one according to possible multiple conditions. The channel, signaling, reference signal and data of the carrier are received, so that the UE saves power and reduces time consumption.

A method for generating the scrambling code is provided below: the CRC of the PBCH is inverted bit by bit to obtain a scrambling code of the CRC. This scrambling code generation method can be used to indicate the carrier type. For example, the standardization specifies that the scrambling code of the CRC obtained by the CRC bit-by-bit inversion indicates that the carrier type is NCT. Then, the base station may apply the scrambling code corresponding to the corresponding carrier type to scramble the CRC of the PBCH, and send the scrambled PBCH. The scrambling code is obtained by inverting the CRC bit by bit. The UE receives and parses the PBCH, and confirms the CRC scrambling code of the PBCH, and determines the carrier type of the carrier according to the correspondence between the scrambling code and the carrier type, that is, if the scrambling code is obtained by CRC bitwise inversion, the UE determines that the carrier type is NCT.

In scheme 2, the base station and/or the UE distinguish different carrier types by using an agreed discovery signaling sequence, or a period of the appointment discovery signaling, or a time-frequency domain location of the appointment discovery signaling.

Alternatively, the base station and/or the UE pass the agreed primary synchronization sequence and/or the secondary synchronization sequence, or the agreed primary synchronization sequence and the secondary synchronization in the time domain, the frequency domain interval, or the agreed primary synchronization sequence and/or the secondary synchronization. Sequence time-frequency domain location to distinguish between different carrier types.

The following takes the primary/secondary synchronization sequence as an example.

Partial primary/secondary synchronization sequences are used only for a certain carrier type by arranging different sequence sets. According to the convention, the base station may configure a corresponding agreed primary/secondary synchronization sequence in the corresponding carrier type, and send the sequence in the carrier. After the UE detects the primary/secondary synchronization sequence of the carrier, the UE confirms the carrier as its corresponding carrier type according to the detected agreed primary/secondary synchronization sequence. Correct In the new version of the UE, the UE may identify that a part of the sequence in the primary/secondary synchronization sequence is agreed to be used by a certain carrier type, or is configured to identify the channel, signaling, data scheduling mode, and reference signal configuration in the carrier. Therefore, when the new version of the UE detects the primary/secondary synchronization sequence in the carrier, the type of the carrier can be confirmed according to the received primary/secondary synchronization sequence, so that the channel, signaling, reference signal, and data transmission manner corresponding to the carrier type are used. Receiving subsequent related data, and no longer need to test the channel, signaling, reference signal and data of the receiving carrier one by one according to possible multiple conditions, thereby helping the UE to save power and reduce time consumption.

In addition, by agreeing the transmission period of the primary/secondary sequence (assuming that the primary/secondary sequence has a plurality of different transmission periods), the transmission period of the partial primary/secondary synchronization sequence is only used for a certain carrier type. In fact, a correspondence is established between the carrier type (or other characteristics to be identified, such as whether a certain channel is configured) and the transmission period of the primary/secondary sequence, and the correspondence is standardized. The base station transmits a primary/secondary synchronization sequence in a carrier in a period corresponding to the type of the carrier. When a new version of the UE accesses the carrier, it detects the period of the primary/secondary synchronization sequence, thereby determining the channel type, the signaling, the data scheduling mode, and the reference signal configuration in the carrier type, and thus can receive according to the corresponding carrier type. Subsequent data helps the UE save time and power.

Furthermore, the carrier type can be distinguished by the time domain and/or the frequency domain position transmitted by different primary/secondary sequences by arranging the correspondence between the time domain and/or the frequency domain location and the carrier type transmitted by the primary/secondary sequence. . Typically, the time domain and/or frequency domain location of the new carrier design is different from the primary/secondary synchronization sequence transmitted by the compatible carrier. Or the time domain and/or frequency domain location sent by the primary/secondary synchronization sequence can identify the channel, signaling, data scheduling mode, and reference signal configuration in the carrier.

In this way, the base station can determine the time domain and/or frequency domain location of the primary/secondary synchronization sequence in the carrier according to the agreed correspondence, according to the type of the carrier or the channel, signaling, data scheduling mode, and reference signal configuration in the carrier. The primary/secondary synchronization sequence is thus transmitted in the time domain and/or frequency domain location. When a new version of the UE is accessed, time domain and/or frequency domain location detection according to a plurality of different primary/secondary synchronization sequences may be detected. If the time domain and/or frequency domain location detection according to a certain agreement is successful, then The UE can determine the corresponding carrier type according to the corresponding relationship, so as to receive subsequent data according to the corresponding carrier type.

The time domain locations transmitted by the primary/secondary synchronization sequence may include orthogonal frequency division multiplexing (OFDM) locations, subframe locations, intervals between primary/secondary synchronization, time slots, and the like.

The frequency domain locations transmitted by the primary/secondary synchronization sequence may include locations occupying physical resource blocks (PRBs), intervals between primary/secondary synchronizations in the frequency domain, and the like.

In scheme 3, the base station sets a new parameter in the (e)PBCH of the carrier transmission (used to carry the MIB, that is, sets a new parameter in the MIB) or SIB1, and indicates the carrier type by using the parameter, or indicates the channel in the carrier, Signaling, data scheduling mode, reference signal configuration or configured time-frequency domain location or PRB location, and transmitting the (e)PBCH or SIB1 with the new parameters set. For example, in (e) PBCH or SIB1, a parameter is introduced to indicate whether the system message in the carrier is scheduled by the PDCCH or the ePDCCH, or the reference parameter indicating whether the reference signal in the carrier is the transmitted C8 of the R8 or the defined period of the R12 is 5 ms. The CRS, or the incoming parameter indicates whether the PHICH mechanism or the ePHICH mechanism is used in the carrier.

When the new version of the UE is accessed from the carrier, after receiving (e) PBCH or SIB1, the UE parses the signaling, and by setting the new parameter, it can confirm the type of the carrier or the channel, signaling, and data in the carrier. Scheduling mode, reference signal configuration or configured time-frequency domain location or PRB location, so that subsequent data can be received according to the specific conditions of the carrier, saving time and power.

Typically, considering the (e) PBCH requirements for signaling overhead are very strict, the set new parameter can use 1 bit to identify the carrier type, such as: The carrier is a compatible carrier or NCT.

If the carrier channel, signaling, data scheduling mode, and reference signal configuration need to be indicated, the signaling may be formed by using a bitmap. Considering that the signaling overhead is relatively large, SIB1 is preferably used for transmission, and of course, it can also be transmitted in (e) PBCH.

The new parameter set may also be represented by (e) the PBCH reserved bit, thereby avoiding Avoid introducing new signaling overhead.

In scheme 4, the base station/UE distinguishes the carrier type or the channel, signaling, data scheduling mode, and reference signal configuration in the carrier type or carrier by (e) the time domain and/or frequency domain location of the PBCH.

Specifically, a new time-frequency domain location and/or period can be designed for the (e)PBCH of the NCT. When a new time-frequency domain location and/or period is introduced, the base station and the UE agree that the NCT is new (e). The PBCH is transmitted in the frequency domain location and/or period, or the base station and the UE agree that the (e) PBCH different time-frequency domain locations and/or periods respectively identify the channel, signaling, data scheduling mode, and reference signal configuration in the carrier.

The base station transmits (e) the PBCH in the NCT according to the convention, using the corresponding time-frequency domain position and/or period in the NCT. The new version of the UE needs to receive (e) the PBCH in two different ways, namely, detecting and receiving (e) PBCH according to the time-frequency domain position and/or period of the (e) PBCH of the original compatible carrier, and according to the NCT. (e) Time-frequency domain location and/or period detection and reception of the PBCH (e) PBCH. After the UE successfully receives in a certain manner, the carrier type can be determined according to the agreement, and the subsequent data is received according to the provisions of the carrier type.

It can be seen from the above that the operation of implementing carrier type identification in the embodiment of the present invention can represent the process shown in FIG. 1, and the process includes the following steps:

Step 110: The system side network element configures type information of the corresponding carrier in the carrier according to the type of the deployment.

Step 120: The system side network element sends the configured type information of the carrier.

One of ordinary skill in the art will appreciate that all or a portion of the above steps may be performed by a program to instruct the associated hardware, such as a read only memory, a magnetic disk, or an optical disk. Alternatively, all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module/unit in the above embodiment may be implemented in the form of hardware or in the form of a software function module. Embodiments of the invention are not limited to any specific form of combination of hardware and software. In summary, the method for implementing carrier type identification in the embodiment of the present invention can help the new version of the UE to effectively identify the carrier type, and can also be used for 'J, area identification, for example, if there is no method, device or system. Continuously transmitting (cell DTX) CRS subframes or muting the identification of cells of a CRS subframe, identification of a special destination cell, etc., thus facilitating the UE to reduce access time and make the UE more power efficient.

The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

Claims

claims

1. A method for realizing carrier type identification, including:

The system side network element configures the corresponding carrier type information in the carrier according to the type of the deployed carrier and sends the configured carrier type information.

2. The method according to claim 1, wherein,

When the system side network element configures the type information of the carrier, the cyclic redundancy check CRC of the (enhanced) physical broadcast channel (e) PBCH transmitted in the carrier is scrambled with the agreed scrambling code; where, the agreed scrambling code Used to indicate the type of carrier; or,

Configured to transmit in the carrier the agreed physical cell ID/discovery (signal/channel) sequence corresponding to the carrier type; or,

Configured to send a sequence in the carrier according to the time domain position and/or frequency domain position corresponding to the carrier type; wherein the sequence includes discovery signaling, or primary/secondary synchronization sequence; or,

Set the carrier type information in the main system information block MIB or system information block SIB1 of the carrier transmission.

3. The method according to claim 1 or 2, wherein the method further includes:

When the carrier type is the new carrier NCT, the public downlink control information is transmitted through the enhanced physical downlink control channel ePDCCH; when the carrier type is a conventional carrier, the public downlink control information is transmitted through the ePDCCH or the physical downlink control channel PDCCH.

4. The method according to claim 1, wherein the method further includes:

The system side network element configures and sends the corresponding PSS/SSS according to the PSS/SSS structure corresponding to the carrier type, or configures and sends the corresponding PBCH according to the ePBCH/PBCH structure corresponding to the carrier type.

5. The method according to claim 1, wherein,

The carrier types include: compatible carriers, NCT, MTC dedicated carriers or multimedia broadcast multicast service MBMS dedicated carriers.

6. The method according to any one of claims 1 to 5, wherein the method further includes: when the user equipment UE accesses through a carrier, receiving the type information of the carrier in the carrier to determine the carrier type, and according to the carrier type Determines how information is subsequently received on the carrier.

7. A method for realizing carrier type identification, including:

When the UE accesses through a carrier, it determines the carrier type by parsing the carrier type information in the carrier, and determines a subsequent method of receiving information in the carrier based on the carrier type.

8. The method according to claim 7, wherein,

When the UE determines the carrier type, it decodes the received (e)PBCH, obtains the CRC, descrambles the CRC, obtains the scrambling code added to the CRC, and determines the carrier type based on the scrambling code; or, based on the received physical The type of carrier is determined by the carrier type corresponding to the set to which the cell ID/discovery sequence belongs; or,

The carrier type is determined based on the time domain position and/or frequency domain position of the received sequence/channel; or, the carrier type is determined based on the received type information of the carrier in MIB or SIB1.

9. The method according to claim 7 or 8, wherein the method further includes:

When the carrier type is NCT, the UE detects the public search space corresponding to ePDCCH to obtain public downlink control information; when the carrier type is a conventional carrier, the UE detects the public search space corresponding to ePDCCH or PDCCH to obtain public downlink control information.

10. The method of claim 7, wherein the method further includes:

The UE determines the type of carrier based on the time domain location and/or frequency domain location of the received PSS/SSS and/or the interval between PSS and SSS, or based on the time domain location and/or frequency domain location of the received (e)PBCH Determine the type of carrier.

11. The method according to claim 7, wherein,

The carrier type includes: compatible carrier, NCT, MTC dedicated carrier or MBMS dedicated carrier.

12. The method according to any one of claims 7 to 11, wherein the UE receives The carrier type information is sent by the system side network element; before the UE receives the carrier type information, the method further includes:

13. A device for realizing carrier type identification, configured as:

According to the type of deployed carrier, corresponding carrier type information is configured in the carrier and the configured carrier type information is sent.

14. The device according to claim 13, wherein,

When configuring the type information of the carrier, the device is configured to scramble the CRC of the (e) PBCH transmitted in the carrier using an agreed scrambling code; wherein the agreed scrambling code is used to represent the type of carrier; or,

Set the carrier type information in the MIB or SIB1 of the carrier transmission.

15. The device according to claim 13 or 14, wherein,

When the carrier type is NCT, the device is further configured to transmit public downlink control information through ePDCCH; when the carrier type is a conventional carrier, the device is further configured to transmit public downlink control information through ePDCCH or PDCCH.

16. The device according to claim 13, wherein the device is further configured to: configure and send the corresponding PSS/SSS according to the PSS/SSS structure corresponding to the carrier type, or ePBCH/SSS corresponding to the carrier type. The PBCH structure configures and sends the corresponding PBCH.

17. The device according to claim 13, wherein, The carrier type includes: compatible carrier, NCT, MTC dedicated carrier or MBMS dedicated carrier.

18. The device according to claim 13, wherein,

The device is a system-side network element, including a base station, a relay station, and a remote radio head (RRH).

19. A device for realizing carrier type identification, configured as:

When accessing through a carrier, the carrier type information in the carrier is parsed to determine the carrier type, and the subsequent method of receiving information in the carrier is determined based on the carrier type.

20. The device according to claim 19, wherein,

When determining the carrier type, the device is configured to decode the received (e)PBCH, obtain the CRC, descramble the CRC, obtain the scrambling code added to the CRC, and determine the type of carrier based on the scrambling code; or,

Determine the type of carrier based on the carrier type corresponding to the set to which the received physical cell ID/discovery sequence belongs; or,

21. The device according to claim 19 or 20, wherein,

When the carrier type is NCT, the device is further configured to detect the public search space corresponding to ePDCCH and obtain public downlink control information; when the carrier type is a conventional carrier, the device is further configured to detect the public search space corresponding to ePDCCH or PDCCH. , obtain public downlink control information.

22. The device according to claim 19, wherein the device is further configured to: determine the type of carrier according to the time domain position and/or frequency domain position of the received PSS/SSS and/or the interval between PSS and SSS. , or determine the type of carrier according to the time domain position and/or frequency domain position of the received (e)PBCH.

23. The device according to claim 19, wherein, The carrier type includes: compatible carrier, NCT, MTC dedicated carrier or MBMS dedicated carrier.

24. The device according to claim 19, wherein the device is a UE.

25. A system for realizing carrier type identification, including a system side network element and a UE; wherein, the system side network element is configured to configure corresponding carrier type information in the carrier according to the type of deployed carrier and send the configuration The type information of the carrier;

The UE, when configured to access through a carrier, parses the carrier type information in the carrier to determine the carrier type, and determines a subsequent method of receiving information in the carrier based on the carrier type.

26. The system of claim 25, wherein,

27. The system of claim 25, wherein,

The system side network elements include base stations, relay stations, and RRHs.