CN107734593B

CN107734593B - A kind of method and device accessing subband

Info

Publication number: CN107734593B
Application number: CN201610665283.0A
Authority: CN
Inventors: 司倩倩; 郑方政; 潘学明; 孙韶辉
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2016-08-12
Filing date: 2016-08-12
Publication date: 2019-11-15
Anticipated expiration: 2036-08-12
Also published as: CN107734593A; WO2018028428A1

Abstract

The present invention provides a kind of method and device for accessing subband, on one or more subband for not supporting UE only to work in whole system bandwidth in the method for solving the problems, such as existing UE initial access system；Wherein, the method for the access subband includes: the subband arrangement information for obtaining and transmitting in cell, and according to the subband arrangement information, the subband in system bandwidth is selected to be accessed.The solution of the present invention, can be recognized accurately in system bandwidth can with data transmit subband and access.

Description

A kind of method and device accessing subband

Technical field

The present invention relates to fields of communication technology, more particularly to a kind of method and device for accessing subband.

Background technique

Currently, user equipment (User Equipment, abbreviation UE) will access long term evolution (Long Term Evolution, abbreviation LTE) network when, it is necessary to by cell searching, obtain the processes such as cell system information.

Specifically, in order to support cell searching, LTE to define 2 downlink synchronous signals: primary synchronization signal (Primary Synchronization Signal, abbreviation PSS) and secondary synchronization signal (Secondary Synchronization Signal, Abbreviation SSS).For frequency division duplex (Frequency Division Duplex, abbreviation FDD), PSS in subframe 0 and 5 first The last one orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplex, abbreviation of a gap slot OFDM it) is sent on symbol, SSS and PSS are sent on the same slot of same subframe, but SSS is located at penultimate OFDM symbol On, previous OFDM symbol is proposed than PSS.For time division duplex (Time Division Duplex, abbreviation TDD), PSS is in subframe It is sent in 1 and 6 third OFDM symbol, and SSS is sent in the last one OFDM symbol of subframe 0 and 5, shifts to an earlier date 3 than PSS A symbol.

UE is not aware that the size of cell system bandwidth in booting, but it knows the frequency band supported and bandwidth itself. In order to enable UE to detect the frequency and symbol synchronization information of system as early as possible, no matter the size of downlink system bandwidth is how many, PSS and SSS, which is all located on 72 subcarriers at center, (i.e. on 6 RB at center, does not include DC.Actually only use in frequency 62 subcarriers around heart DC, both sides have respectively stayed 5 subcarriers to be used as protection wave band).UE can be in the LTE frequency band model that it is supported Interior progress grating search is enclosed to go to attempt to receive PSS and SSS.By receiving PSS and SSS, UE can obtain the physical area of cell The timing (such as 10ms) of (Physical cell ID, abbreviation PCI) and system-frame are numbered, and determines that cell is work in FDD Under mode or tdd mode, common CP is used still to extend CP, to complete cell searching.

After cell searching is completed, UE achieves down-going synchronous with cell, and what UE needed then to get cell is It unites information (System Information, abbreviation SI), just can know that how the cell configures in this way, it is small to access this Area simultaneously correctly works in the cell.The system information is the information of cell level, i.e., raw to all UE for accessing the cell Effect.Wherein, system information can be divided into main information block (Master Information Block, abbreviation MIB) and multiple systems Block of information (System Information Block, abbreviation SIB), each system information contains relevant to some function one Parameters in series set.

Cell can constantly broadcast these system informations.By detecting the MIB transmitted on broadcast channel BCH, UE can Downlink system bandwidth, PHICH configuration and System Frame Number are obtained, while the specific antenna port number of cell and L1/ can also be obtained The transmission mode of the upper control signaling of L2.But only include very limited system information in MIB, more system informations are then logical The SIB that transmits in DSCH Downlink Shared Channel DL-SCH is crossed to tell UE's.UE needs the first blind examination in subframe to scramble through SI-RNTI Physical downlink control channel PDCCH, just can know that the subframe with the presence or absence of SIB information.Cell can be clever as the case may be Change bandwidth shared by SIB livingly, the RB that uses set and transformat etc..

But in 5G system, the bandwidth of operation how UE carries out being initially accessed specific method, especially UE not yet can Can be less than system bandwidth, it is therefore necessary to propose a kind of cut-in method, with support UE only work in whole system bandwidth one On a or multiple subbands.

Summary of the invention

The purpose of the present invention is to provide a kind of method and devices for accessing subband, are initially accessed system to solve existing UE The problem on one or more subband that the method for system does not support UE only to work in whole system bandwidth.

In order to achieve the above purpose, the present invention provides a kind of method for accessing subband, comprising:

Obtain the subband arrangement information transmitted in cell；

According to the subband arrangement information, the subband in system bandwidth is selected to be accessed.

Preferably, the subband arrangement information is resource information of the sub-band detection signal on subband, the basis The subband arrangement information, selects subband the step of being accessed in system bandwidth to include:

According to the resource information, the sub-band detection signal in respective sub-bands is detected；

The system information of pre-selection subband is obtained, the pre-selection subband is the son for successfully being detected the sub-band detection signal Band, it is described pre-selection subband system information in indicate it is described pre-selection subband on data transfer bandwidth；

According to the data transfer bandwidth on the data transfer bandwidth of user equipment (UE) and the pre-selection subband, select matched Pre-selection subband is accessed.

Preferably, the data transfer bandwidth on the data transfer bandwidth and the pre-selection subband according to UE, selection The step of pre-selection subband matched is accessed include:

If the data transfer bandwidth of the UE is only greater than or equal to the data transfer bandwidth on the first pre-selection subband, institute is selected It states the first pre-selection subband to be accessed, the first pre-selection subband is in the pre-selection subband with minimum data transmission bandwidth The quantity for preselecting subband and the first pre-selection subband is one；

If the data transfer bandwidth of the UE is greater than or equal in the pre-selection subband on more than one pre-selection subband Data transfer bandwidth, selects the second all pre-selection subbands from the pre-selection subband, and the output transmission of the UE is roomy In or equal to it is described second pre-selection subband on data transfer bandwidth；

The third pre-selection subband with most strong sub-band detection signal is selected from the second pre-selection subband to be accessed.

Preferably, the third pre-selection with most strong sub-band detection signal is selected from the second pre-selection subband described After subband is accessed, the method also includes:

Report the data transfer bandwidth of the UE to the cell, so that output transmission of the cell according to the UE The wide configuration UE carries out data transmission on part or all of second pre-selection subband.

Report the data transfer bandwidth of the UE and to the second relevant information of pre-selection subband for not accessed to described small Area, so that data transfer bandwidth and to do not accessed the second pre-selection subband relevant letter of the cell according to the UE Breath configures the UE to carry out data transmission on part or all of second pre-selection subband, wherein described with do not accessed second The relevant information of pre-selection subband is the sub-band detection on the second pre-selection subband not accessed partly or entirely detected The intensity of signal, it is described do not accessed second pre-selection subband in most strong sub-band detection signal subband sub-band information or Person according to sub-band detection signal strength as by force to weak ordering arrangement some or all of described in do not accessed second pre-selection subband Sub-band information.

Preferably, the subband arrangement information is resource information of the sub-band detection signal on network access point TRP, The TRP transmits a sub-band detection signal, described according to the subband arrangement information, and the subband in system bandwidth is selected to carry out The step of access includes:

According to the resource information, the sub-band detection signal on the subband of corresponding TRP is detected；

The system information of the TRP is obtained, the subband that the system bandwidth divides is indicated in the system information of the TRP Data transfer bandwidth on several and each subband；

Report the data transfer bandwidth of UE to the cell, so that the cell is matched according to the data transfer bandwidth of the UE The UE is set to carry out data transmission on part or all of subband；

It receives the configuration information of the cell and carries out the access of subband according to the configuration information.

Preferably, the sub-band division information that the subband arrangement information is transmitted for data in the system bandwidth, described According to the subband arrangement information, the step of selecting the subband in system bandwidth to be accessed, includes:

According to the sub-band division information, the sub-band number and the data on each subband that determine the system bandwidth division Transmission bandwidth；

If the data transfer bandwidth of UE is only greater than or equal to the data transfer bandwidth on the first subband, first son is detected The sub-band detection signal taken, first subband are the subband in all subbands with minimum data transmission bandwidth and described the The quantity of one subband is one；

If successfully being detected the sub-band detection signal on first subband, first subband is accessed.

Preferably, described according to the subband arrangement information, the step of selecting the subband in system bandwidth to be accessed, is also Include:

If the data transfer bandwidth of the UE is greater than or equal to the data transmission in the subband on more than one subband Bandwidth selects the second all subbands, the data transfer bandwidth of the UE from all subbands that the system bandwidth divides More than or equal to the data transfer bandwidth on second subband；

Detect the sub-band detection signal on second subband；

Second subband with the strongest sub-band detection signal is selected to be accessed.

Preferably, after the selection is accessed with the second subband of the strongest sub-band detection signal, institute State method further include:

Report the data transfer bandwidth of the UE to the cell, so that output transmission of the cell according to the UE The wide configuration UE carries out data transmission on part or all of second subband.

The data transfer bandwidth for reporting the UE and information relevant to the second subband not accessed make to the cell Obtain data transfer bandwidth and to second subband that the do not accessed relevant information configuration institute of the cell according to the UE It states UE to carry out data transmission on part or all of second subband, wherein the letter relevant to the second subband that is not accessed Breath for the sub-band detection signal on second subband not accessed that partly or entirely detects intensity, described do not connect In the second subband entered with most strong sub-band detection signal subband sub-band information or according to sub-band detection signal strength by It is strong to weak ordering some or all of arrange described in the sub-band information of the second subband that is not accessed.

Preferably, described the step of obtaining the subband arrangement information transmitted in cell, includes:

Obtain the initial sync signal in the cell；

It is completed according to the initial sync signal synchronous between the cell；

After completion is synchronous between the cell, the subband arrangement information transmitted in the cell is obtained.

Preferably, there is a TRP or multiple TRP in the cell.

It preferably, is synchronous or asynchronous when having multiple TRP in the cell, between different TRP.

Preferably, the TRP uses one or more subband in system bandwidth.

Preferably, different carrier characteristics are used on different TRP or different subbands.

Preferably, the subband arrangement information is carried by main information block or system information block.

The present invention also provides a kind of methods for accessing subband, comprising:

Subband arrangement information is issued to user equipment (UE), so that the UE selects system according to the subband arrangement information Subband in bandwidth is accessed.

Preferably, the subband arrangement information is resource information of the sub-band detection signal on subband or TRP；Or Person, the subband arrangement information are the sub-band division information of data transmission in the system bandwidth.

Preferably, after the subband of UE access selection, the method also includes:

Receive the data transfer bandwidth for the UE that the UE is reported；

According to the data transfer bandwidth of the UE, the UE is configured in the son for partly or entirely detecting sub-band detection signal It takes and carries out data transmission.

The present invention provides a kind of device for accessing subband again, comprising:

Module is obtained, for obtaining the subband arrangement information transmitted in cell；

Selecting module, for selecting the subband in system bandwidth to be accessed according to the subband arrangement information.

Preferably, the subband arrangement information is resource information of the sub-band detection signal on subband, the selection Module includes:

First detection unit, for detecting the sub-band detection signal in respective sub-bands according to the resource information；

First acquisition unit, for obtaining the system information of pre-selection subband, the pre-selection subband is described successfully to be detected The subband of sub-band detection signal, it is described pre-selection subband system information in indicate it is described pre-selection subband on output transmission It is wide；

First selecting unit, the data on the data transfer bandwidth and the pre-selection subband according to user equipment (UE) pass Defeated bandwidth selects matched pre-selection subband to be accessed.

Preferably, the first selecting unit includes:

First choice subelement, for being only greater than or equal on the first pre-selection subband in the data transfer bandwidth of the UE When data transfer bandwidth, the first pre-selection subband is selected to be accessed, the first pre-selection subband is in the pre-selection subband The quantity of pre-selection subband with minimum data transmission bandwidth and the first pre-selection subband is one；

Second selection subelement, is greater than or equal in the pre-selection subband one for the data transfer bandwidth in the UE When data transfer bandwidth on the above pre-selection subband, the second all pre-selection subbands, institute are selected from the pre-selection subband The data transfer bandwidth of UE is stated more than or equal to the data transfer bandwidth on the second pre-selection subband；

Third selects subelement, for selecting the with most strong sub-band detection signal from the second pre-selection subband Three pre-selection subbands are accessed.

Preferably, described device further include:

First reporting module is used for after accessing the third pre-selection subband,

Preferably, described device further include:

Second reporting module, for reporting the data transfer bandwidth of the UE after accessing the third pre-selection subband With information relevant to the second pre-selection subband not accessed to the cell, so that the cell is passed according to the data of the UE UE described in defeated bandwidth and the information configuration relevant to the do not accessed second pre-selection subband is in part or all of second pre-selection Carry out data transmission on subband, wherein the information relevant to the do not accessed second pre-selection subband is partly or entirely inspection The intensity of the sub-band detection signal on the second pre-selection subband not accessed measured, second pre-selection not accessed There is the sub-band information of the subband of most strong sub-band detection signal or according to sub-band detection signal strength by by force to weak suitable in subband The sub-band information for the second pre-selection subband not accessed described in some or all of sequence arrangement.

Preferably, the subband arrangement information is resource information of the sub-band detection signal on network access point TRP, The TRP transmits a sub-band detection signal, and the selecting module includes:

Second detection unit, for according to the resource information, detecting the letter of the sub-band detection on the subband of corresponding TRP Number；

Second acquisition unit indicates described for obtaining the system information of the TRP in the system information of the TRP The sub-band number of system bandwidth division and the data transfer bandwidth on each subband；

Reporting unit, for reporting the data transfer bandwidth of UE to the cell, so that the cell is according to the UE's Data transfer bandwidth configures the UE to carry out data transmission on part or all of subband；

Receiving unit, for receiving the configuration information of the cell and according to the access of configuration information progress subband.

Preferably, the subband arrangement information is the sub-band division information of data transmission in the system bandwidth, the choosing Selecting module includes:

Determination unit, for according to the sub-band division information, determining sub-band number that the system bandwidth divides and every Data transfer bandwidth on height band；

Third detection unit, the output transmission for being only greater than or equal on the first subband in the data transfer bandwidth of UE When wide, the sub-band detection signal on first subband is detected, first subband is in all subbands there is minimum data to pass The quantity of the subband of defeated bandwidth and first subband is one；

Access unit, for accessing described first in the sub-band detection signal successfully being detected on first subband Subband.

Preferably, the selecting module further include:

Second selecting unit is greater than or equal to more than one in the subband for the data transfer bandwidth in the UE When data transfer bandwidth on subband, the second all subbands, institute are selected from all subbands that the system bandwidth divides The data transfer bandwidth of UE is stated more than or equal to the data transfer bandwidth on second subband；

4th detection unit, for detecting the sub-band detection signal on second subband；

Third selecting unit, for selecting the second subband with the strongest sub-band detection signal to be accessed.

Preferably, described device further include:

Third reporting module, in the selection there is the second subband of the strongest sub-band detection signal to be connect After entering, report the data transfer bandwidth of the UE to the cell, so that output transmission of the cell according to the UE The wide configuration UE carries out data transmission on part or all of second subband.

Preferably, described device further include:

4th reporting module, in the selection there is the second subband of the strongest sub-band detection signal to be connect The data transfer bandwidth for reporting the UE after entering and information relevant to the second subband not accessed make to the cell Obtain data transfer bandwidth and to second subband that the do not accessed relevant information configuration institute of the cell according to the UE It states UE to carry out data transmission on part or all of second subband, wherein the letter relevant to the second subband that is not accessed Breath for the sub-band detection signal on second subband not accessed that partly or entirely detects intensity, described do not connect In the second subband entered with most strong sub-band detection signal subband sub-band information or according to sub-band detection signal strength by It is strong to weak ordering some or all of arrange described in the sub-band information of the second subband that is not accessed.

Preferably, the acquisition module includes:

Third acquiring unit, for obtaining the initial sync signal in the cell；

Synchronization unit, it is synchronous between the cell for being completed according to the initial sync signal；

4th acquiring unit, for obtaining the institute transmitted in the cell after completion is synchronous between the cell State subband arrangement information.

Preferably, there is a TRP or multiple TRP in the cell.

Preferably, the TRP uses one or more subband in system bandwidth.

Module is issued, for issuing subband arrangement information to user equipment (UE), so that the UE is according to the subband arrangement Information selects the subband in system bandwidth to be accessed.

Preferably, described device further include:

Receiving module, the data for after the subband that the UE access selects, receiving the UE that the UE is reported pass Defeated bandwidth；

Configuration module configures the UE and is partly or entirely detecting son for the data transfer bandwidth according to the UE Carry out data transmission on subband with detection signal.

Above-mentioned technical proposal through the invention, the beneficial effects of the present invention are:

The method and device of access subband of the invention, by the subband arrangement information transmitted in acquisition cell, and according to The subband arrangement information selects the subband in system bandwidth to be accessed, can be recognized accurately in system bandwidth can be with Data transmission subband and access.

Detailed description of the invention

In order to illustrate the technical solution of the embodiments of the present invention more clearly, will make below to required in the embodiment of the present invention Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for For those of ordinary skill in the art, without any creative labor, it can also be obtained according to these attached drawings His attached drawing.

Fig. 1 is the flow chart of the method for the access subband of first embodiment of the invention.

Fig. 2 is the schematic diagram for the network deployment scenarios one that 5G newly eats dishes without rice or wine in prototype system.

Fig. 3 is that the subband in a specific example of first embodiment of the invention distributes schematic diagram.

Fig. 4 is the schematic diagram for the network deployment scenarios two that 5G newly eats dishes without rice or wine in prototype system.

Fig. 5 is that the subband in another specific example of first embodiment of the invention distributes schematic diagram.

Fig. 6 is the schematic diagram for the network deployment scenarios three that 5G newly eats dishes without rice or wine in prototype system.

The subband that Fig. 7 is TRP1 in the another specific example of first embodiment of the invention distributes schematic diagram.

The subband that Fig. 8 is TRP2 in the another specific example of first embodiment of the invention distributes schematic diagram.

Fig. 9 is that the subband in another specific example of first embodiment of the invention distributes schematic diagram.

Figure 10 is the flow chart of the method for the access subband of second embodiment of the invention.

Figure 11 is the structural schematic diagram of the device of the access subband of third embodiment of the invention.

Figure 12 is the structural schematic diagram of the device of the access subband of fourth embodiment of the invention.

Figure 13 is the structural schematic diagram of the user equipment of fifth embodiment of the invention.

Figure 14 is the structural schematic diagram of the base station of sixth embodiment of the invention.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts Example, shall fall within the protection scope of the present invention.

Shown in Figure 1, first embodiment of the invention provides a kind of method for accessing subband, is used for terminal side, wherein institute The method of stating includes step 101~step 102, and details are as follows.

Step 101: obtaining the subband arrangement information transmitted in cell.

In the embodiment of the present invention, there can be a network insertion node TRP in the cell, that is, system information area SIA (as shown in Figure 2) or multiple TRP (as referring to fig. 4 or shown in Fig. 6).The TRP can broadcast corresponding system information.

Also, it can be synchronous, be also possible to non-same when having multiple TRP in the cell, between different TRP Step.And when the system bandwidth of cell is divided into multiple subbands, the TRP in the cell can be used one in system bandwidth Or multiple subbands.

In the specific embodiment of the invention, different carrier characteristics can be used on different TRP or different subbands. For example including subcarrier spacing, bandwidth, OFDM symbol length, CP length etc., the present invention does not limit it carrier characteristics System.

And the subband arrangement information belongs to the system information of respective cell, mainly passes through main information block MIB or system Block of information SIB-X (X value is determined by corresponding system information block) is carried.

Step 102: according to the subband arrangement information, the subband in system bandwidth being selected to be accessed.

In the embodiment of the present invention, the subband arrangement information is transfer resource of the sub-band detection signal on subband or TRP Information；Alternatively, the subband arrangement information is the sub-band division information of data transmission in the system bandwidth.Wherein, the son It with detection signal is transmitted by TRP, the sub-band detection signal of general different TRP transmission is also different, and the two one is a pair of It answers.

In this way, the method for the access subband of the embodiment of the present invention, by obtaining the subband arrangement information transmitted in cell, and According to the subband arrangement information, selects the subband in system bandwidth to be accessed, can be recognized accurately in system bandwidth It can be with the subband of data transmission and access.

Due to the difference of subband arrangement information instruction content, so, the method for the access subband of the embodiment of the present invention Different modes realization can be used, details are as follows.

Mode one: the subband arrangement information is resource information of the sub-band detection signal on subband

It is described according to the subband arrangement information in the case where mode one, select the subband in system bandwidth to be connect Enter to specifically include:

It should be noted that according to the actual situation, the quantity for transmitting the subband of sub-band detection signal may be less than or equal to institute The sub-band number of system bandwidth division is stated, correspondingly, the quantity of the pre-selection subband also may be less than or equal to the system bandwidth and draw The sub-band number divided.

Further, the output transmission on the data transfer bandwidth and the pre-selection subband according to user equipment (UE) Width selects matched pre-selection subband to be accessed specifically:

That is, select subband accessed when, it is first determined whether there are UE can access subband (i.e. UE's Data transfer bandwidth is greater than or equal to the data transfer bandwidth on accessible subband), then judging there is accessible son In the case where band, if as soon as only exist an accessible subband, this can only be selected to can access subband and accessed, and if there is More than one accessible subband, with regard to selecting wherein to there is the subband of most strong sub-band detection signal to be accessed.

And after the access for completing the third pre-selection subband, the method also includes:

Alternatively, the method also includes:

Report the data transfer bandwidth of the UE and to the second relevant information of pre-selection subband for not accessed to described small Area, so that data transfer bandwidth and to do not accessed the second pre-selection subband relevant letter of the cell according to the UE Breath configures the UE to carry out data transmission on part or all of second pre-selection subband.

Wherein, the information relevant to the do not accessed second pre-selection subband can are as follows:

The intensity of the sub-band detection signal on the second pre-selection subband not accessed partly or entirely detected；Or Person

The sub-band information of subband with most strong sub-band detection signal in the second pre-selection subband not accessed；Or

According to sub-band detection signal strength as pre- to second not accessed described in some or all of weak ordering arrangement by force Select the sub-band information of subband.

It should be noted that referring herein to sub-band information for determining corresponding subband.

In the following, being illustrated by method of the specific example to the access subband of mode one.

Example 1

Shown in referring to figs. 2 and 3, it is assumed that there is a TRP, each independently transmitted initial synchronisation letter of TRP in a cell Number and system information, whole system bandwidth be 100M, the system bandwidth of 100M is divided into two subbands in a TRP, it is different Different carrier characteristics are used on subband, and the data transfer bandwidth that the system information in subband 1 indicates on subband 1 is 40M, it is 60M that the system information in subband 2, which indicates the data transfer bandwidth on subband 2,.

When UE is ready for subband access, transfer resource of the sub-band detection signal on subband 1 and subband 2 is got first Information detects the sub-band detection signal on subband 1 and subband 2 respectively, is successfully detecting then according to the resource information After sub-band detection signal on to subband 1 and subband 2, the system information of subband 1 and subband 2, the system information instruction are obtained Data transfer bandwidth in respective sub-bands.In this way, the UE for only supporting 40M transmission bandwidth, can only select access subband 1 with Carry out data transmission on subband 1, and for supporting the UE of 100M transmission bandwidth, so that it may selection has most strong sub-band detection signal Subband 1 or subband 2 accessed, and can be by reporting self-ability (such as data transfer bandwidth of UE) matching by cell It sets while carrying out data transmission on subband 1 and subband 2.

Example 2

Referring to fig. 4 and shown in Fig. 5, it is assumed that there are multiple TRP in a cell, can be between multiple TRP it is synchronous or Person is nonsynchronous, and sends identical initial sync signal and system information, and whole system bandwidth is 100M, is divided into 5 sons Band, the bandwidth of each subband are 20M.Corresponding subband arrangement information is transfer resource of the sub-band detection signal on subband 1~5 Information.Also, TRP1 while the sending and receiving data on subband 1 and subband 2, sending and receiving data is (i.e. every on subband 3~5 simultaneously by TRP2 A subband only has a TRP use).

When UE is ready for subband access, transfer resource letter of the sub-band detection signal on subband 1~5 is got first Breath detects the sub-band detection signal on subband 1~5 respectively, successfully is being detected subband then according to the resource information After sub-band detection signal on 1~5, the system information of subband 1~5 is obtained, the system information indicates in respective sub-bands Data transfer bandwidth.In this way, the UE for only supporting 20M transmission bandwidth, can only select one of subband to be accessed, such as If having selected the subband 1 with most strong sub-band detection signal, UE will first with transmit the sub-band detection signal TRP1 is synchronized, and then accesses corresponding subband 1.And the UE for supporting to be greater than or equal to 40M transmission bandwidth, equally to select It selects the subband 4 of subband such as TRP2 with most strong sub-band detection signal to be accessed, and can be by reporting the data of the UE The intensity for the sub-band detection signal on subband 3 that transmission bandwidth and the UE have detected that is by the configuration of cell simultaneously in subband 3, carry out data transmission on 4.

Example 3

Referring to shown in Fig. 6, Fig. 7 and Fig. 8, it is assumed that there are multiple TRP in a cell, can be synchronization between multiple TRP Perhaps nonsynchronous initial sync signal and system information can only be sent on the TRP of one or small part low frequency (LF), Or sent on the TRP of low frequency and high frequency (HF) simultaneously, in Fig. 6 only one LF TRP send initial sync signal and System information.Whole system bandwidth is 100M, is divided into 2 subbands.It is assumed that TRP1 and TRP2 shares subband 1 and subband 2, TRP1 Data transfer bandwidth on the system information instruction subband 1 of middle subband 1 is 50M, and the system information of subband 2 indicates on subband 2 Data transfer bandwidth is also 50M (shown in Figure 7), and the data in TRP 2 on the system information instruction subband 1 of subband 1 pass Defeated bandwidth is 60M, and the data transfer bandwidth on the system information instruction subband 2 of subband 2 is 40M (shown in Figure 8).

When UE is ready for subband access, transfer resource of the sub-band detection signal on subband 1 and subband 2 is got first Information detects the sub-band detection signal on subband 1 and subband 2 then according to the resource information respectively.For example, if The data transfer bandwidth of UE is 100, and detects that the sub-band detection signal of TRP2 on subband 1 is most strong, then can be in TRP2 Subband 1 on obtain system information, and access the subband 1 of the 60M of TRP2；UE can also be by its ability information, that is, data transfer bandwidth 100M is reported to cell, so that the cell can configure the subband 2 of TRP2 after knowing transmittability of the UE with 100M To the UE to carry out data transmission.

Mode two: the subband arrangement information is resource information of the sub-band detection signal on network access point TRP

In the case where mode two, the TRP only transmits a sub-band detection signal, described to be believed according to the subband arrangement Breath selects the subband in system bandwidth to carry out access and specifically includes:

Wherein, in the case where mode two, sub-band detection signal is detected mainly according to pre-set sub-band detection signal Resource information, and pre-set resource information is, for example, the X Physical Resource Block in system bandwidth middle position PRB or subcarrier.

In the following, being illustrated by method of the specific example to the access subband of mode two.

Example 1

Shown in Figure 9, whole system bandwidth is 100M, is divided into 5 subbands, and the bandwidth of each subband is 20M, accordingly Subband arrangement information be resource information of the sub-band detection signal on TRP, the TRP only transmits subband on subband 3 Detect signal.

When UE is ready for subband access, resource information of the sub-band detection signal on TRP is got first, then According to the resource information, the sub-band detection signal on subband 3 is detected, in the sub-band detection successfully being detected on subband 3 It after signal, is synchronized with the TRP for transmitting the sub-band detection signal, and obtain the system information of the TRP, the system letter Breath indicates the dividing condition of system bandwidth；After getting the system information, UE reports the data transfer bandwidth of its support To corresponding cell, so that the cell configures the UE at one according to its data transfer bandwidth supported that the UE is reported Carry out data transmission on subband or multiple subbands.In this way, the UE for only supporting 20M transmission bandwidth, cell can be according to the UE The data transfer bandwidth of the UE reported configures the UE to carry out data transmission on a subband such as subband 1.And for Support the UE of 100M transmission bandwidth, cell can configure the UE whole according to the data transfer bandwidth for the UE that the UE is reported Carry out data transmission in a system bandwidth.

Mode three: the subband arrangement information is the sub-band division information of data transmission in the system bandwidth

It is described according to the subband arrangement information in the case where mode three, select the subband in system bandwidth to be connect Enter to specifically include:

And if the data transfer bandwidth of the UE is greater than or equal to the data in the subband on more than one subband and passes Defeated bandwidth selects the second all subbands, the output transmission of the UE from all subbands that the system bandwidth divides It is wider than or equal to the data transfer bandwidth on second subband；

Detect the sub-band detection signal on second subband；

It should be noted that when UE selects subband to be accessed in the case where mode three, it is first determined whether in the presence of UE accessible subband (i.e. the data transfer bandwidth of UE is greater than or equal to the data transfer bandwidth on accessible subband), then In the case where judging to have accessible subband, if as soon as only exist an accessible subband, this can only be selected to can access son Band is accessed, and if there is more than one accessible subband, just selection is wherein with the son of most strong sub-band detection signal Band is accessed.

According to the actual situation, the quantity for transmitting the subband of sub-band detection signal may be less than or equal to the system bandwidth and divide Sub-band number.And resource information of the sub-band detection signal mainly according to pre-set sub-band detection signal is detected, it is described Resource information be, for example, the sub-band detection signal each subband frequency band middle position periodic transfer (i.e. in each biography Periodic transfer is carried out on the intermediate X subcarrier of defeated interval TTI, or carries out week on intermediate X subcarrier every N number of TTI Phase transmission).

Further, after the access for completing second subband, the method also includes:

Alternatively, after the selection is accessed with the second subband of the strongest sub-band detection signal, it is described Method further include:

The data transfer bandwidth for reporting the UE and information relevant to the second subband not accessed make to the cell Obtain data transfer bandwidth and to second subband that the do not accessed relevant information configuration institute of the cell according to the UE UE is stated to carry out data transmission on part or all of second subband.

Wherein, the information relevant to the second subband that is not accessed can are as follows:

The intensity of the sub-band detection signal on second subband not accessed partly or entirely detected；Or

The sub-band information of subband in second subband not accessed with most strong sub-band detection signal；Or

According to sub-band detection signal strength as by force to weak ordering arrangement some or all of described in do not accessed second son The sub-band information of band.

In the following, being illustrated by method of the specific example to the access subband of mode three.

Example 1

Shown in referring to figs. 2 and 3, it is assumed that there is a TRP, each independently transmitted initial synchronisation letter of TRP in a cell Number and system information, whole system bandwidth be 100M, the system bandwidth of 100M is divided into two subbands in a TRP, it is different Different carrier characteristics have been used on subband.Corresponding subband arrangement information is the subband 1 and 60M that system bandwidth is divided into 40M Subband 2.

When UE is ready for subband access, system bandwidth is got first and is divided into the subband 1 of 40M and the subband 2 of 60M, it is right In the UE for only supporting 40M transmission bandwidth, it can select to detect sub-band detection signal in the middle position of subband 1, successfully be detected After sub-band detection signal on subband 1, subband 1 is accessed to carry out sending and receiving for data；And for supporting 100M transmission belt Wide UE can select to detect sub-band detection signal in the middle position of subband 1 and subband 2, after successfully being detected, so that it may select Subband 1 or subband 2 with most strong sub-band detection signal are accessed, and can be by reporting the data transfer bandwidth of UE by small The configuration in area carries out data transmission on whole system bandwidth (i.e. subband 1 and subband 2).

Example 2

Referring to fig. 4 and shown in Fig. 5, it is assumed that there are multiple TRP in a cell, can be between multiple TRP it is synchronous or Person is nonsynchronous, and sends identical initial sync signal and system information, and whole system bandwidth is 100M, is divided into 5 sons Band, the bandwidth of each subband are 20M.Corresponding subband arrangement information is the subband that system bandwidth is divided into five 20M.Also, TRP1 while the sending and receiving data on subband 1 and subband 2, TRP2 while the sending and receiving data on subband 3~5.

When UE is ready for subband access, the subband that system bandwidth is divided into five 20M is got first, for supporting 40M The UE of transmission bandwidth detects the sub-band detection signal on subband 1~5, if UE detects the subband on the subband 1 of TRP1 respectively It is most strong to detect signal, and the sub-band detection signal on the subband 4 of TRP2 is the last the second, then, the UE can be carried out with TRP1 It is synchronous, and the subband 1 of the TRP1 is accessed, then report the son on the subband 4 of the data transfer bandwidth 40M and TRP2 of the UE Band detection signal is the last the second to cell, carries out the cell configuration UE on the subband 1 of TRP1 and the subband 4 of TRP2 simultaneously Data transmission.

In the embodiment of the present invention, the subband arrangement information transmitted in cell that obtains is specifically included:

Obtain the initial sync signal in the cell；

Wherein, the initial sync signal includes the first synchronization signal and the second synchronization signal, for example, PSS and SSS, main It is used for cell searching.

And due to that can have TRP or multiple TRP in the cell, so, obtain corresponding subband arrangement information Process can be slightly different, details are as follows.

Specifically, obtaining the process of corresponding subband arrangement information when having a TRP in the cell specifically: PSS and SSS is detected first, then according to the i.e. TRP of the detection intensity determination cell to be accessed (there is strongest detection intensity), and Initial synchronisation is carried out with determining TRP, then obtains the important system information on determining TRP, is believed according to the important system Breath can determine the subband arrangement information in whole system bandwidth.And when having multiple TRP in the cell, it obtains corresponding The process of subband arrangement information specifically: detection PSS and SSS first, and initial synchronisation is carried out with corresponding cell, then obtain The important system information transmitted in the cell is the subband that can determine in whole system bandwidth according to the important system information Configuration information.

Shown in Figure 10, second embodiment of the invention provides a kind of method for accessing subband, is used for network side, wherein The method includes the steps 201, details are as follows.

Step 201: subband arrangement information is issued to user equipment (UE), so that the UE is according to the subband arrangement information, Subband in selection system bandwidth is accessed.

In this way, the method for the access subband of the embodiment of the present invention may make described by issuing subband arrangement information to UE UE selects the subband in system bandwidth to be accessed, according to the subband arrangement information so as to which system band is recognized accurately In width can with data transmit subband and access.

Wherein, the subband arrangement information is resource information of the sub-band detection signal on subband or TRP；Alternatively, The subband arrangement information is the sub-band division information of data transmission in the system bandwidth.

In the specific embodiment of the invention, after the subband of UE access selection, the method also includes:

Receive the data transfer bandwidth for the UE that the UE is reported；

Shown in Figure 11, third embodiment of the invention provides a kind of device for accessing subband, with access shown in FIG. 1 The method of band is corresponding, wherein described device includes:

Module 111 is obtained, for obtaining the subband arrangement information transmitted in cell；

Selecting module 112, for selecting the subband in system bandwidth to be accessed according to the subband arrangement information.

In this way, the device of the access subband of the embodiment of the present invention, by obtaining the subband arrangement information transmitted in cell, and According to the subband arrangement information, selects the subband in system bandwidth to be accessed, can be recognized accurately in system bandwidth It can be with the subband of data transmission and access.

In the embodiment of the present invention, the subband arrangement information can be transfer resource letter of the sub-band detection signal on subband Breath, the selecting module include:

Wherein, the first selecting unit includes:

Further, described device further include:

First reporting module, for reporting the data transfer bandwidth of the UE after accessing the third pre-selection subband To the cell, so that the cell configures the UE in part or all of second pre-selection according to the data transfer bandwidth of the UE Carry out data transmission on subband.

Further, described device further include:

In the embodiment of the present invention, the subband arrangement information can be biography of the sub-band detection signal on network access point TRP Defeated resource information, the TRP transmit a sub-band detection signal, and the selecting module includes:

In the embodiment of the present invention, the subband arrangement information can be the sub-band division letter of data transmission in the system bandwidth Breath, the selecting module include:

Wherein, the selecting module further include:

Further, described device further include:

In the embodiment of the present invention, the acquisition module includes:

Third acquiring unit, for obtaining the initial sync signal in the cell；

Specifically, having a TRP or multiple TRP in the cell.

Specifically, being synchronous or asynchronous when having multiple TRP in the cell, between different TRP.

Specifically, one or more subband in system bandwidth can be used in the TRP.

Specifically, using different carrier characteristics on different TRP or different subbands.

Specifically, the subband arrangement information can be carried by main information block or system information block.

Shown in Figure 12, fourth embodiment of the invention provides a kind of device for accessing subband, with access shown in Fig. 10 The method of subband is corresponding, wherein described device includes:

Module 121 is issued, for issuing subband arrangement information to user equipment (UE), so that the UE matches according to the subband Confidence breath, selects the subband in system bandwidth to be accessed.

Further, described device further include:

Referring to described in Figure 13, fifth embodiment of the invention provides a kind of user equipment (UE), and the UE includes the first bus 130, first processor 131, the first transceiver 132, the first bus interface 133, first memory 134 and user interface 135.

Wherein, first processor 131 execute following process: by for reading the program in first memory 134 One transceiver 132 obtains the subband arrangement information transmitted in cell, and according to the subband arrangement information, selects in system bandwidth Subband accessed.

First transceiver 132, for sending and receiving data under the control of first processor 131.

In Figure 13, bus architecture (is represented) with the first bus 130, and the first bus 130 may include any number of The bus and bridge of interconnection, the first bus 130 will include the one or more processors represented by general first processor 131 and The various circuits for the memory that one memory 134 represents link together.First bus 130 can also will such as peripheral equipment, Various other circuits of voltage-stablizer and management circuit or the like link together, and these are all it is known in the art, because This, it will not be further described herein.First bus interface 133 is between the first bus 130 and the first transceiver 132 Interface is provided.First transceiver 132 can be an element, be also possible to multiple element, such as multiple receivers and transmitter, Unit for communicating over a transmission medium with various other devices is provided.Such as: the first transceiver 132 is received from other equipment External data.First transceiver 132 is used for that treated that data are sent to other equipment by first processor 131.Depending on meter The property of calculation system can also provide user interface 135, such as keypad, display, loudspeaker, microphone, control stick.

First processor 131 is responsible for the first bus 130 of management and common processing, and general operation system is run as described in aforementioned System.And first memory 134 can be used to store the used data when executing operation of first processor 131.

Optionally, first processor 131 can be CPU, ASIC, FPGA or CPLD.

Shown in Figure 14, sixth embodiment of the invention provides a kind of base station, and the base station includes the second bus 140, the Two transceivers 141, antenna 142, the second bus interface 143, second processor 144 and second memory 145.

Wherein, second processor 144 execute following process: by for reading the program in second memory 145 Two transceivers 141 issue subband arrangement information to UE, so that the UE is selected in system bandwidth according to the subband arrangement information Subband accessed.

Second transceiver 141, for sending and receiving data under the control of second processor 144.

In Figure 14, bus architecture (is represented) with the second bus 140, and the second bus 140 may include any number of The bus and bridge of interconnection, the second bus 140 will include that the one or more processors represented by second processor 144 and second are deposited The various circuits for the memory that reservoir 145 represents link together.Second bus 140 can also will such as peripheral equipment, pressure stabilizing Various other circuits of device and management circuit or the like link together, and these are all it is known in the art, therefore, this Text is no longer described further it.Second bus interface 143 provides between the second bus 140 and the second transceiver 141 Interface.Second transceiver 141 can be an element, is also possible to multiple element, such as multiple receivers and transmitter, provides Unit for being communicated over a transmission medium with various other devices.The data handled through second processor 144 pass through antenna 142 It is transmitted on the radio medium, further, antenna 142 also receives data and transfers data to second processor 144.

Second processor 144 is responsible for the second bus 140 of management and common processing, can also provide various functions, including Periodically, peripheral interface, voltage adjusting, power management and other control functions.And second memory 145 can be used to store The used data when executing operation of second processor 144.

Optionally, second processor 144 can be CPU, ASIC, FPGA or CPLD.

The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered It is considered as protection scope of the present invention.

Claims

1. a kind of method for accessing subband characterized by comprising

Obtain the subband arrangement information transmitted in cell；

According to the subband arrangement information, the subband in system bandwidth is selected to be accessed；

The subband arrangement information is resource information of the sub-band detection signal on subband or TRP.

2. the method according to claim 1, wherein the subband arrangement information is sub-band detection signal in subband On resource information, described according to the subband arrangement information, the step of selecting the subband in system bandwidth to be accessed Include:

The system information of pre-selection subband is obtained, the pre-selection subband is the subband for successfully being detected the sub-band detection signal, institute State the data transfer bandwidth indicated on the pre-selection subband in the system information of pre-selection subband；

According to the data transfer bandwidth on the data transfer bandwidth of user equipment (UE) and the pre-selection subband, matched pre-selection is selected Subband is accessed.

3. according to the method described in claim 2, it is characterized in that, described according to the data transfer bandwidth of UE and pre-selection The data transfer bandwidth taken, the step of selecting matched pre-selection subband to be accessed include:

If the data transfer bandwidth of the UE is only greater than or equal to the data transfer bandwidth on the first pre-selection subband, described the is selected One pre-selection subband is accessed, and the first pre-selection subband is the pre-selection with minimum data transmission bandwidth in the pre-selection subband The quantity of subband and the first pre-selection subband is one；

If the data transfer bandwidth of the UE is greater than or equal to the data in the pre-selection subband on more than one pre-selection subband Transmission bandwidth, selects all second pre-selections subbands from the pre-selection subband, the output transmission of the UE be wider than or Equal to the data transfer bandwidth on the second pre-selection subband；

4. according to the method described in claim 3, it is characterized in that, having most by force being selected from the second pre-selection subband After the third pre-selection subband of sub-band detection signal is accessed, the method also includes:

Report the data transfer bandwidth of the UE to the cell, so that the cell is matched according to the data transfer bandwidth of the UE The UE is set to carry out data transmission on part or all of second pre-selection subband.

5. according to the method described in claim 3, it is characterized in that, having most by force being selected from the second pre-selection subband After the third pre-selection subband of sub-band detection signal is accessed, the method also includes:

The data transfer bandwidth for reporting the UE and information relevant to the second pre-selection subband not accessed make to the cell The cell is obtained to be matched according to the data transfer bandwidth and the information relevant to the do not accessed second pre-selection subband of the UE It sets the UE to carry out data transmission on part or all of second pre-selection subband, wherein described to preselect with do not accessed second The relevant information of subband is the sub-band detection signal on the second pre-selection subband not accessed partly or entirely detected Intensity, it is described do not accessed second pre-selection subband in most strong sub-band detection signal subband sub-band information, or According to sub-band detection signal strength as by force to the second pre-selection subband not accessed described in some or all of weak ordering arrangement Sub-band information.

6. the method according to claim 1, wherein the subband arrangement information is sub-band detection signal in network Resource information on access point TRP, the TRP transmits a sub-band detection signal, described to be believed according to the subband arrangement Breath, selects subband the step of being accessed in system bandwidth to include:

Obtain the system information of the TRP, indicated in the system information of the TRP sub-band number that the system bandwidth divides with And the data transfer bandwidth on each subband；

Report the data transfer bandwidth of UE to the cell, so that the cell configures institute according to the data transfer bandwidth of the UE UE is stated to carry out data transmission on part or all of subband；

7. the method according to claim 1, wherein the step for obtaining the subband arrangement information transmitted in cell Suddenly include:

Obtain the initial sync signal in the cell；

8. the method according to claim 1, wherein having a TRP or multiple TRP in the cell.

9. according to the method described in claim 8, it is characterized in that, when in the cell have multiple TRP when, different TRP Between be synchronous or asynchronous.

10. according to the method described in claim 8, it is characterized in that, the TRP uses one or more in system bandwidth Subband.

11. according to the method described in claim 10, it is characterized in that, using difference on different TRP or different subbands Carrier characteristics.

12. the method according to claim 1, wherein the subband arrangement information is by main information block or is System block of information carries.

13. a kind of method for accessing subband characterized by comprising

Obtain the subband arrangement information transmitted in cell；

The subband arrangement information is the sub-band division information of data transmission in the system bandwidth；It is described to be matched according to the subband Confidence breath, selects subband the step of being accessed in system bandwidth to include:

According to the sub-band division information, the sub-band number of the system bandwidth division and the data transmission on each subband are determined Bandwidth；

If the data transfer bandwidth of UE is only greater than or equal to the data transfer bandwidth on the first subband, detect on first subband Sub-band detection signal, first subband be all subbands in minimum data transmission bandwidth subband and it is described first son The quantity of band is one；

14. according to the method for claim 13, which is characterized in that it is described according to the subband arrangement information, select system The step of subband in bandwidth is accessed further include:

If the data transfer bandwidth of the UE is greater than or equal to the data transfer bandwidth in the subband on more than one subband, Select the second all subbands from all subbands that the system bandwidth divides, the output transmission of the UE be wider than or Equal to the data transfer bandwidth on second subband；

Detect the sub-band detection signal on second subband；

15. according to the method for claim 14, which is characterized in that there is the strongest sub-band detection letter in the selection Number the second subband accessed after, the method also includes:

Report the data transfer bandwidth of the UE to the cell, so that the cell is matched according to the data transfer bandwidth of the UE The UE is set to carry out data transmission on part or all of second subband.

16. according to the method for claim 14, which is characterized in that there is the strongest sub-band detection letter in the selection Number the second subband accessed after, the method also includes:

The data transfer bandwidth for reporting the UE and information relevant to the second subband not accessed are to the cell, so that institute State cell UE according to the data transfer bandwidth of the UE and the information configuration relevant to the second subband that is not accessed Carry out data transmission on part or all of second subband, wherein the information relevant to the second subband that is not accessed is The intensity of the sub-band detection signal on second subband not accessed partly or entirely detected described is not accessed In second subband with most strong sub-band detection signal subband sub-band information, or according to sub-band detection signal strength by by force to The sub-band information for the second subband not accessed described in some or all of weak ordering arrangement.

17. according to the method for claim 13, which is characterized in that the subband arrangement information transmitted in the acquisition cell Step includes:

Obtain the initial sync signal in the cell；

18. according to the method for claim 13, which is characterized in that have a TRP or multiple TRP in the cell.

19. according to the method for claim 18, which is characterized in that different when having multiple TRP in the cell It is synchronous or asynchronous between TRP.

20. according to the method for claim 18, which is characterized in that the TRP is using one in system bandwidth or more A subband.

21. according to the method for claim 20, which is characterized in that use difference on different TRP or different subbands Carrier characteristics.

22. according to the method for claim 13, which is characterized in that the subband arrangement information is by main information block or is System block of information carries.

23. a kind of method for accessing subband characterized by comprising

Subband arrangement information is issued to UE, so that the UE selects the subband in system bandwidth according to the subband arrangement information It is accessed；

24. according to the method for claim 23, which is characterized in that after the subband of UE access selection, the method Further include:

Receive the data transfer bandwidth for the UE that the UE is reported；

According to the data transfer bandwidth of the UE, the UE is configured on the subband for partly or entirely detecting sub-band detection signal Carry out data transmission.

25. a kind of device for accessing subband characterized by comprising

Selecting module, for selecting the subband in system bandwidth to be accessed according to the subband arrangement information；

26. device according to claim 25, which is characterized in that the subband arrangement information is sub-band detection signal in son The resource information taken, the selecting module include:

First acquisition unit, for obtaining the system information of pre-selection subband, the pre-selection subband is successfully to be detected the subband The subband of signal is detected, the data transfer bandwidth on the pre-selection subband is indicated in the system information of the pre-selection subband；

First selecting unit, for the output transmission on the data transfer bandwidth and the pre-selection subband according to user equipment (UE) Width selects matched pre-selection subband to be accessed.

27. device according to claim 26, which is characterized in that the first selecting unit includes:

First choice subelement, the data for being only greater than or equal on the first pre-selection subband in the data transfer bandwidth of the UE When transmission bandwidth, the first pre-selection subband is selected to be accessed, the first pre-selection subband is to have in the pre-selection subband The quantity of the pre-selection subband of minimum data transmission bandwidth and the first pre-selection subband is one；

Second selection subelement, is greater than or equal to more than one in the pre-selection subband for the data transfer bandwidth in the UE Pre-selection subband on data transfer bandwidth when, all second pre-selections subbands, the UE are selected from the pre-selection subband Data transfer bandwidth be greater than or equal to it is described second pre-selection subband on data transfer bandwidth；

Third selects subelement, pre- for selecting the third with most strong sub-band detection signal from the second pre-selection subband Subband is selected to be accessed.

28. device according to claim 27, which is characterized in that described device further include:

First reporting module, for reporting the data transfer bandwidth of the UE to institute after accessing the third pre-selection subband Cell is stated, so that the cell configures the UE in part or all of second pre-selection subband according to the data transfer bandwidth of the UE On carry out data transmission.

29. device according to claim 27, which is characterized in that described device further include:

Second reporting module, for after accessing third pre-selection subband, report the UE data transfer bandwidth and with The relevant information of the second pre-selection subband not accessed is to the cell, so that output transmission of the cell according to the UE UE described in the wide and described information configuration relevant to the do not accessed second pre-selection subband is in part or all of second pre-selection subband On carry out data transmission, wherein described to the do not accessed second relevant information of pre-selection subband is partly or entirely to detect It is described do not accessed second pre-selection subband on sub-band detection signal intensity, it is described do not accessed second pre-selection subband In with most strong sub-band detection signal subband sub-band information or according to sub-band detection signal strength by by force arrive weak ordering row The sub-band information for the second pre-selection subband not accessed described in some or all of column.

30. device according to claim 25, which is characterized in that the subband arrangement information is sub-band detection signal in net Resource information on network access point TRP, the TRP transmit a sub-band detection signal, and the selecting module includes:

Second detection unit, for detecting the sub-band detection signal on the subband of corresponding TRP according to the resource information；

Second acquisition unit indicates the system for obtaining the system information of the TRP in the system information of the TRP Data transfer bandwidth in the sub-band number of bandwidth partition and each subband；

Reporting unit, for reporting the data transfer bandwidth of UE to the cell, so that data of the cell according to the UE Transmission bandwidth configures the UE to carry out data transmission on part or all of subband；

31. device according to claim 25, which is characterized in that the acquisition module includes:

Third acquiring unit, for obtaining the initial sync signal in the cell；

4th acquiring unit, for obtaining the son transmitted in the cell after completion is synchronous between the cell Band configuration information.

32. device according to claim 25, which is characterized in that have a TRP or multiple TRP in the cell.

33. device according to claim 32, which is characterized in that different when having multiple TRP in the cell It is synchronous or asynchronous between TRP.

34. device according to claim 32, which is characterized in that the TRP is using one in system bandwidth or more A subband.

35. device according to claim 34, which is characterized in that use difference on different TRP or different subbands Carrier characteristics.

36. device according to claim 25, which is characterized in that the subband arrangement information is by main information block or is System block of information carries.

37. a kind of device for accessing subband characterized by comprising

The subband arrangement information is the sub-band division information of data transmission in the system bandwidth；The selecting module includes:

Determination unit, for determining the sub-band number and every height that the system bandwidth divides according to the sub-band division information The data transfer bandwidth taken；

Third detection unit, the data transfer bandwidth for being only greater than or equal on the first subband in the data transfer bandwidth of UE When, the sub-band detection signal on first subband is detected, first subband is to have minimum data transmission in all subbands The quantity of the subband of bandwidth and first subband is one；

Access unit, for accessing first subband in the sub-band detection signal successfully being detected on first subband.

38. the device according to claim 37, which is characterized in that the selecting module further include:

Second selecting unit is greater than or equal to more than one subband in the subband for the data transfer bandwidth in the UE On data transfer bandwidth when, from the system bandwidth divide all subbands in select the second all subbands, the UE Data transfer bandwidth be greater than or equal to second subband on data transfer bandwidth；

39. the device according to claim 38, which is characterized in that described device further include:

Third reporting module, in the selection there is the second subband of the strongest sub-band detection signal to carry out accessing it Afterwards, report the data transfer bandwidth of the UE to the cell, so that the cell is matched according to the data transfer bandwidth of the UE The UE is set to carry out data transmission on part or all of second subband.

40. the device according to claim 38, which is characterized in that described device further include:

4th reporting module, in the selection there is the second subband of the strongest sub-band detection signal to carry out accessing it Afterwards, the data transfer bandwidth for reporting the UE and information relevant to the second subband not accessed are to the cell, so that institute State cell UE according to the data transfer bandwidth of the UE and the information configuration relevant to the second subband that is not accessed Carry out data transmission on part or all of second subband, wherein the information relevant to the second subband that is not accessed is The intensity of the sub-band detection signal on second subband not accessed partly or entirely detected described is not accessed In second subband with most strong sub-band detection signal subband sub-band information or according to sub-band detection signal strength by by force to The sub-band information for the second subband not accessed described in some or all of weak ordering arrangement.

41. the device according to claim 37, which is characterized in that the acquisition module includes:

Third acquiring unit, for obtaining the initial sync signal in the cell；

42. the device according to claim 37, which is characterized in that have a TRP or multiple TRP in the cell.

43. device according to claim 42, which is characterized in that different when having multiple TRP in the cell It is synchronous or asynchronous between TRP.

44. device according to claim 42, which is characterized in that the TRP is using one in system bandwidth or more A subband.

45. device according to claim 44, which is characterized in that use difference on different TRP or different subbands Carrier characteristics.

46. the device according to claim 37, which is characterized in that the subband arrangement information is by main information block or is System block of information carries.

47. a kind of device for accessing subband characterized by comprising

Module is issued, for issuing subband arrangement information to user equipment (UE), so that the UE is according to the subband arrangement information, Subband in selection system bandwidth is accessed；

48. device according to claim 47, which is characterized in that described device further include:

Receiving module, for receiving the output transmission for the UE that the UE is reported after the subband that the UE access selects It is wide；

Configuration module configures the UE and is partly or entirely detecting that subband is examined for the data transfer bandwidth according to the UE It surveys on the subband of signal and carries out data transmission.