WO2018028428A1 - 接入子带的方法、装置及存储媒介 - Google Patents
接入子带的方法、装置及存储媒介 Download PDFInfo
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- WO2018028428A1 WO2018028428A1 PCT/CN2017/094353 CN2017094353W WO2018028428A1 WO 2018028428 A1 WO2018028428 A1 WO 2018028428A1 CN 2017094353 W CN2017094353 W CN 2017094353W WO 2018028428 A1 WO2018028428 A1 WO 2018028428A1
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- subband
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- data transmission
- transmission bandwidth
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
Definitions
- the present disclosure relates to the field of communications technologies, and in particular, to a method, an apparatus, and a storage medium for accessing a subband.
- UE User Equipment
- LTE Long Term Evolution
- LTE defines two downlink synchronization signals: a Primary Synchronization Signal (PSS) and a Secondary Synchronization Signal (SSS).
- PSS Primary Synchronization Signal
- SSS Secondary Synchronization Signal
- FDD Frequency Division Duplex
- the PSS is sent on the last Orthogonal Frequency Division Multiplex (OFDM) symbol of the first slot of subframes 0 and 5.
- OFDM Orthogonal Frequency Division Multiplex
- the SSS and the PSS are transmitted on the same slot in the same subframe, but the SSS is located on the penultimate OFDM symbol, one OFDM symbol ahead of the PSS.
- TDD Time Division Duplex
- the PSS is transmitted on the third OFDM symbol of subframes 1 and 6
- the SSS is transmitted on the last OFDM symbol of subframes 0 and 5, three earlier than the PSS. symbol.
- the UE does not know the size of the cell system bandwidth when it is powered on, but it knows the frequency band and bandwidth it supports.
- the PSS and the SSS are located on the central 72 subcarriers (ie, the central 6 RBs (Resource Block), excluding the size of the downlink system bandwidth.
- DC (direct current) subcarriers Actually only 62 subcarriers around the frequency center DC subcarrier are used, and 5 subcarriers are left on each side for the protection band).
- the UE will perform a raster search within its supported LTE frequency band to try to receive the PSS and SSS.
- the UE can obtain the physical cell number (PCI) of the cell and the timing of the system frame (for example, 10 ms), and determine whether the cell works in the FDD mode or the TDD mode, and uses the normal CP ( Cyclic Prefix) is also to extend the CP to complete the cell search.
- PCI physical cell number
- the timing of the system frame for example, 10 ms
- the system information is cell level information, that is, valid for all UEs accessing the cell.
- the system information can be divided into a main information block (MIB) and a plurality of system information blocks (SIBs), and each system information includes a set of parameters related to a certain function.
- the community will continuously broadcast these system information.
- the UE can obtain the downlink system bandwidth, the PHICH (Physical Hybrid ARQ Indicator Channel) configuration and the system frame number, and also obtain the cell-specific number of antenna ports and the L1/L2 control. Signaling transmission mode.
- the MIB only contains very limited system information, and more system information is told to the UE through the SIB transmitted in the downlink shared channel DL-SCH (Downlink Share Channel).
- the UE needs to first detect the physical downlink control channel PDCCH (Physical Downlink Control Channel) scrambled by the SI-RNTI (System Information Radio Network Temporary Identifier) in the subframe to know whether the subframe has the SIB information.
- PDCCH Physical Downlink Control Channel
- SI-RNTI System Information Radio Network Temporary Identifier
- the working bandwidth of the UE may be smaller than the system bandwidth. Therefore, it is necessary to propose an access method to support the UE to work only in the entire system bandwidth.
- One or more sub-bands are possible.
- the purpose of the disclosure is to provide a method and an apparatus for accessing a subband, so as to solve the problem that the existing method for the UE to initially access the system does not support the UE to work only on one or more subbands in the entire system bandwidth.
- the present disclosure provides a method for accessing a subband, including:
- a subband in the system bandwidth is selected for access.
- the subband configuration information is transmission resource information of the subband detection signal on the subband
- the step of selecting the subband in the system bandwidth for access according to the subband configuration information includes:
- the preselected subband is a subband that successfully detects the subband detection signal, and the system information of the preselected subband indicates a data transmission bandwidth on the preselected subband;
- the matched pre-selected sub-bands are selected for access according to the data transmission bandwidth of the user equipment UE and the data transmission bandwidth on the pre-selected sub-band.
- the step of selecting a matched pre-selected sub-band to access according to the data transmission bandwidth of the UE and the data transmission bandwidth on the pre-selected sub-band includes:
- the first preselected subband is selected for access, and the first preselected subband has the preselected subband.
- a preselected subband of a minimum data transmission bandwidth and the number of the first preselected subbands is one;
- the data transmission bandwidth of the UE is greater than or equal to a data transmission bandwidth on one or more preselected subbands in the preselected subband, select all second preselected subbands from the preselected subband, where the UE The data transmission bandwidth is greater than or equal to the data transmission bandwidth on the second preselected subband;
- a third pre-selected sub-band having the strongest sub-band detection signal is selected from the second pre-selected sub-band for access.
- the method further includes:
- the method further includes:
- a data transmission bandwidth of the UE and information related to a second pre-selected sub-band that is not accessed so that the cell according to the data transmission bandwidth of the UE and the The second pre-selected sub-band related information configures the UE to perform data transmission on part or all of the second pre-selected sub-bands, wherein the information related to the second pre-selected sub-band that is not accessed is partially or completely detected.
- the strength of the subband detection signal on the second unselected subband that is not accessed, and the subband information of the subband having the strongest subband detection signal in the second preselected subband that is not accessed Or sub-band information of part or all of the second pre-selected sub-bands that are not accessed according to the sub-band detection signal strength from strong to weak.
- the subband configuration information is transmission resource information of a subband detection signal at a transmission reception point (TRP), and the TRP transmits a subband detection signal according to the subband.
- TRP transmission reception point
- the steps for selecting subbands in the system bandwidth for access include:
- system information of the TRP indicates the number of subbands of the system bandwidth division and the data transmission bandwidth on each subband;
- the subband configuration information is subband division information of data transmission in the system bandwidth
- the step of selecting a subband in the system bandwidth to perform access according to the subband configuration information includes:
- Detecting a subband detection signal on the first subband if the data transmission bandwidth of the UE is only greater than or equal to a data transmission bandwidth on the first subband, the first subband having a minimum data transmission bandwidth among all subbands Sub-band and the number of the first sub-bands is one;
- the first subband is accessed.
- the step of selecting a subband in the system bandwidth for access according to the subband configuration information further includes:
- the data transmission bandwidth of the UE is greater than or equal to a data transmission bandwidth on one or more subbands in the subband, select all second subbands from all subbands of the system bandwidth division, the UE The data transmission bandwidth is greater than or equal to the data transmission bandwidth on the second sub-band;
- the second sub-band having the strongest sub-band detection signal is selected for access.
- the method further includes:
- the method further includes:
- the sub-band related information configures the UE to perform data transmission on part or all of the second sub-band, wherein the information related to the second sub-band that is not accessed is the partially or all detected the un-received
- the step of acquiring the subband configuration information transmitted in the cell includes:
- the subband configuration information transmitted in the cell is acquired.
- the cell has one TRP or multiple TRPs.
- different TRPs are synchronous or non-synchronized.
- the TRP uses one or more subbands in the system bandwidth.
- different carrier characteristics are used on different TRPs or on different subbands.
- the subband configuration information is carried by a primary information block or a system information block.
- the present disclosure also provides a method for accessing a subband, including:
- the sub-band configuration information is sent to the user equipment UE, so that the UE selects a sub-band in the system bandwidth to perform access according to the sub-band configuration information.
- the subband configuration information is transmission resource information of the subband detection signal on the subband or the TRP; or the subband configuration information is subband division information of the data transmission in the system bandwidth.
- the method further includes:
- the present disclosure further provides an apparatus for accessing a sub-band, including:
- An acquiring module configured to acquire subband configuration information transmitted in a cell
- a selection module configured to select a subband in the system bandwidth for access according to the subband configuration information.
- the subband configuration information is transmission resource information of the subband detection signal on the subband
- the selection module includes:
- a first detecting unit configured to detect a subband detection signal on the corresponding subband according to the transmission resource information
- a first acquiring unit configured to acquire system information of a preselected subband, where the preselected subband is a subband that successfully detects the subband detection signal, where the preselected subband is indicated in system information of the preselected subband Data transmission bandwidth
- a first selecting unit configured to select a matched pre-selected sub-band to access according to the data transmission bandwidth of the user equipment UE and the data transmission bandwidth on the pre-selected sub-band.
- the first selection unit includes:
- a first selecting sub-unit configured to select the first pre-selected sub-band to access when the data transmission bandwidth of the UE is only greater than or equal to a data transmission bandwidth on the first pre-selected sub-band, the first pre-selection The band is a preselected subband having the smallest data transmission bandwidth among the preselected subbands and the number of the first preselected subbands is one;
- a second selection subunit configured to select all the first preselected subbands when the data transmission bandwidth of the UE is greater than or equal to a data transmission bandwidth on one or more preselected subbands in the preselected subband a preselected subband, the data transmission bandwidth of the UE being greater than or equal to a data transmission bandwidth on the second preselected subband;
- a third selection subunit configured to select the strongest subband detection from the second preselected subband The third preselected subband of the signal is accessed.
- the device further includes:
- the device further includes:
- a second reporting module configured to report, after accessing the third pre-selected sub-band, a data transmission bandwidth of the UE and information related to a second pre-selected sub-band that is not accessed, to the cell
- the cell is configured to perform data transmission on the part or all of the second pre-selected sub-bands according to the data transmission bandwidth of the UE and the information related to the second pre-selected sub-band that is not accessed, where the The second pre-selected sub-band related information that is accessed is the strength of the partial or all detected sub-band detection signals on the second pre-selected sub-band that is not accessed, and the second pre-selection that is not accessed. Subband information of the subband having the strongest subband detection signal in the subband or subband information of some or all of the second preselected subbands not arranged according to the strength of the subband detection signal .
- the subband configuration information is transmission resource information of a subband detection signal at a transmission and reception point (TRP), and the TRP transmits a subband detection signal
- the selection module includes:
- a second detecting unit configured to detect a subband detection signal on a subband of the corresponding TRP according to the transmission resource information
- a second acquiring unit configured to acquire system information of the TRP, where the system information of the TRP indicates the number of subbands of the system bandwidth division and the data transmission bandwidth on each subband;
- a reporting unit configured to report a data transmission bandwidth of the UE to the cell, so that the cell configures the UE to perform data transmission on part or all of the sub-band according to the data transmission bandwidth of the UE;
- a receiving unit configured to receive configuration information of the cell, and perform sub-band access according to the configuration information.
- the subband configuration information is subband division information of data transmission in the system bandwidth
- the selection module includes:
- a determining unit configured to determine, according to the subband splitting information, a number of subbands of the system bandwidth partition and a data transmission bandwidth on each subband;
- a third detecting unit configured to: the data transmission bandwidth of the UE is only greater than or equal to that on the first subband Detecting a subband detection signal on the first subband, wherein the first subband is a subband having a minimum data transmission bandwidth among all subbands and the number of the first subbands is one;
- an access unit configured to access the first sub-band when the sub-band detection signal on the first sub-band is successfully detected.
- the selecting module further includes:
- a second selecting unit configured to select all of the subbands of the system bandwidth partition when the data transmission bandwidth of the UE is greater than or equal to a data transmission bandwidth on one or more subbands in the subband a second sub-band, the data transmission bandwidth of the UE is greater than or equal to a data transmission bandwidth on the second sub-band;
- a fourth detecting unit configured to detect a sub-band detection signal on the second sub-band
- a third selecting unit configured to select the second sub-band with the strongest sub-band detection signal for access.
- the device further includes:
- a third reporting module configured to report a data transmission bandwidth of the UE to the cell after the second sub-band having the strongest sub-band detection signal is selected for access, so that the cell according to the The data transmission bandwidth of the UE configures the UE to perform data transmission on some or all of the second sub-bands.
- the device further includes:
- a fourth reporting module configured to report a data transmission bandwidth of the UE and a second subband that is not accessed after the second subband with the strongest subband detection signal is selected for accessing Correlating information to the cell, so that the cell configures the UE to perform on part or all of the second sub-band according to the data transmission bandwidth of the UE and the information related to the second sub-band that is not accessed.
- the information related to the second sub-band that is not accessed is the strength of the partial or all detected sub-band detection signals on the second sub-band that is not accessed, the The sub-band information of the sub-band having the strongest sub-band detection signal among the second sub-bands that are accessed or the part or all of the un-accessed second sub-ranges in the order of strong or weak sub-band detection signal strength Subband information with belt.
- the obtaining module includes:
- a third acquiring unit configured to acquire an initial synchronization signal in the cell
- a synchronization unit configured to complete synchronization with the cell according to the initial synchronization signal
- a fourth acquiring unit configured to acquire the subband configuration information transmitted in the cell after completing synchronization with the cell.
- the cell has one TRP or multiple TRPs.
- different TRPs are synchronous or non-synchronized.
- the TRP uses one or more subbands in the system bandwidth.
- different carrier characteristics are used on different TRPs or on different subbands.
- the subband configuration information is carried by a primary information block or a system information block.
- the disclosure further provides an apparatus for accessing a sub-band, including:
- a sending module configured to send the sub-band configuration information to the user equipment UE, so that the UE selects a sub-band in the system bandwidth to perform access according to the sub-band configuration information.
- the subband configuration information is transmission resource information of the subband detection signal on the subband or the TRP; or the subband configuration information is subband division information of the data transmission in the system bandwidth.
- the device further includes:
- a receiving module configured to receive, after the UE accesses the selected subband, a data transmission bandwidth of the UE reported by the UE;
- a configuration module configured to configure, according to the data transmission bandwidth of the UE, the UE to perform data transmission on a subband that partially or completely detects the subband detection signal.
- the present disclosure also provides an apparatus for accessing a sub-band, including:
- transceiver for receiving and transmitting data under the control of the processor
- the processor is configured to do the following:
- a subband in the system bandwidth is selected for access.
- the present disclosure also provides an apparatus for accessing a sub-band, including:
- transceiver for receiving and transmitting data under the control of the processor
- the processor is configured to do the following:
- UE user equipment
- the present disclosure also provides a non-transitory computer readable storage medium storing computer readable instructions executable by a processor, when the computer readable instructions are executed by a processor
- the processor performs the following operations:
- a subband in the system bandwidth is selected for access.
- the present disclosure also provides a non-transitory computer readable storage medium storing computer readable instructions executable by a processor, when the computer readable instructions are executed by a processor
- the processor performs the following operations:
- the sub-band configuration information is sent to the user equipment (UE), so that the UE selects a sub-band in the system bandwidth to access according to the sub-band configuration information.
- UE user equipment
- the method and device for accessing a subband according to the present disclosure obtains subband configuration information transmitted in a cell, and selects a subband in the system bandwidth for access according to the subband configuration information, and can accurately identify the system bandwidth.
- FIG. 1 is a flowchart of a method for accessing a subband according to an embodiment of the present disclosure.
- FIG. 2 is a schematic diagram of a first network deployment scenario in a 5G new air interface prototype system.
- FIG. 3 is a schematic diagram of subband allocation in a specific example of an embodiment of the present disclosure.
- FIG. 4 is a schematic diagram of a second network deployment scenario in a 5G new air interface prototype system.
- FIG. 5 is a schematic diagram of subband allocation in another specific embodiment of the present disclosure.
- FIG. 6 is a schematic diagram of a third network deployment scenario in a 5G new air interface prototype system.
- FIG. 7 is a schematic diagram of subband allocation of TRP1 in still another embodiment of the present disclosure.
- FIG. 8 is a schematic diagram of subband allocation of TRP2 in still another embodiment of the present disclosure.
- FIG. 9 is a schematic diagram of subband allocation in still another embodiment of the present disclosure.
- FIG. 10 is a flowchart of a method for accessing a subband according to an embodiment of the present disclosure.
- FIG. 11 is a schematic structural diagram of an apparatus for accessing a subband according to an embodiment of the present disclosure.
- FIG. 12 is a schematic structural diagram of an apparatus for accessing a subband according to an embodiment of the present disclosure.
- FIG. 13 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure.
- FIG. 14 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
- an embodiment of the present disclosure provides a method for accessing a sub-band for a terminal side, where the method includes steps 101 to 102, which are described in detail below.
- Step 101 Acquire subband configuration information transmitted in the cell.
- the cell that is, the system information area (SIA) may have a transmission reception point (TRP) (as shown in FIG. 2) or multiple TRPs (see FIG. 4 or FIG. 6)).
- TRP transmission reception point
- the TRP can broadcast corresponding system information.
- TRPs when there are multiple TRPs in the cell, different TRPs may be synchronized or non-synchronized.
- the TRP in the cell may use one or more sub-bands in the system bandwidth.
- different carrier characteristics may be used on different TRPs or on different sub-bands.
- the carrier characteristics include, for example, subcarrier spacing, bandwidth, OFDM symbol length, CP length, and the like, which are not limited by the disclosure.
- the subband configuration information belongs to the system information of the corresponding cell, and is mainly carried by the primary information block MIB or the system information block SIB-X (the X value is determined by the corresponding system information block).
- Step 102 Select a subband in the system bandwidth to perform access according to the subband configuration information.
- the subband configuration information is transmission resource information of the subband detection signal on the subband or the TRP; or the subband configuration information is a subband of data transmission in the system bandwidth. Divide information.
- the sub-band detection signal is transmitted by the TRP, and the sub-band detection signals of different TRP transmissions are also different, and the two are in one-to-one correspondence.
- the method for accessing a subband in the embodiment of the present disclosure can obtain the subband configuration information transmitted in the cell, and select a subband in the system bandwidth to access according to the subband configuration information, so that the system can be accurately identified.
- the method for accessing the sub-band in the embodiment of the present disclosure may be implemented in different manners, as described in detail below.
- the subband configuration information is transmission resource information of the subband detection signal on the subband
- the selecting the sub-bands in the system bandwidth for accessing according to the sub-band configuration information includes:
- the preselected subband is a subband that successfully detects the subband detection signal, and the system information of the preselected subband indicates a data transmission bandwidth on the preselected subband;
- a matching pre-selected sub-band is selected for access based on the data transmission bandwidth of the user equipment (UE) and the data transmission bandwidth on the pre-selected sub-band.
- the number of subbands transmitting the subband detection signal may be less than or equal to the number of subbands divided by the system bandwidth, and correspondingly, the number of the preselected subbands may also be less than or equal to the number.
- the number of subbands divided by the system bandwidth may be less than or equal to the number of subbands divided by the system bandwidth.
- the selected pre-selected sub-bands are selected for access:
- the first preselected subband is selected for access, and the first preselected subband has the preselected subband.
- a preselected subband of a minimum data transmission bandwidth and the number of the first preselected subbands is one;
- the data transmission bandwidth of the UE is greater than or equal to a data transmission bandwidth on one or more preselected subbands in the preselected subband, select all second preselected subbands from the preselected subband, where the UE The data transmission bandwidth is greater than or equal to the data transmission bandwidth on the second preselected subband;
- a third pre-selected sub-band having the strongest sub-band detection signal is selected from the second pre-selected sub-band for access.
- a subband for access when selecting a subband for access, it is first determined whether there is a subband that the UE can access (ie, the data transmission bandwidth of the UE is greater than or equal to the data transmission bandwidth on the accessible subband), and then If it is determined that there is an accessible sub-band, if only one accessible sub-band exists, only the accessible sub-band can be selected for access, and if there is more than one accessible sub-band, select The sub-band with the strongest sub-band detection signal is accessed.
- the method further includes:
- the method further includes:
- the information related to the second pre-selected sub-band that is not accessed may be:
- Subband information of the subband having the strongest subband detection signal among the second preselected subbands that are not accessed or
- the sub-band information of the partial or all of the second pre-selected sub-bands that are not accessed is arranged in order of strongest to weakest according to the sub-band detection signal strength.
- subband information mentioned here is used to determine the corresponding subband.
- each TRP independently transmits an initial synchronization signal and system information, and the entire system bandwidth is 100M, and the system bandwidth of 100M is divided into two sub-bands in one TRP.
- Different carrier characteristics are used on different subbands, and the system information in subband 1 indicates that the data transmission bandwidth on subband 1 is 40M, and the system information in subband 2 indicates that the data transmission bandwidth on subband 2 is 60M.
- the subband detection signal is first acquired in subband 1 and subband 2 Transmitting resource information, and then detecting subband detection signals on subband 1 and subband 2 according to the transmission resource information, and acquiring subbands after successfully detecting subband detection signals on subband 1 and subband 2 1 and system information of subband 2, the system information indicating the data transmission bandwidth on the corresponding subband.
- the subcarrier with the strongest subband detection signal can be selected.
- Band 1 or sub-band 2 is used for access, and data transmission can be simultaneously performed on sub-band 1 and sub-band 2 by means of the configuration of the cell by reporting its own capabilities (for example, the data transmission bandwidth of the UE).
- multiple TRPs may be synchronized or unsynchronized, and the same initial synchronization signal and system information are sent, and the entire system bandwidth is 100M. It is divided into 5 sub-bands, each of which has a bandwidth of 20M.
- the corresponding subband configuration information is the transmission resource information of the subband detection signals on the subbands 1 to 5.
- TRP1 simultaneously transmits and receives data on subband 1 and subband 2
- TRP2 simultaneously transmits and receives data on subbands 3 to 5 (ie, only one TRP is used per subband).
- the transmission resource information of the subband detection signal on the subbands 1 to 5 is acquired, and then the subband detection signals on the subbands 1 to 5 are respectively detected according to the transmission resource information.
- system information of the subbands 1 to 5 is acquired, and the system information indicates the data transmission bandwidth on the corresponding subband.
- only one of the sub-bands can be selected for access. For example, if the sub-band 1 having the strongest sub-band detection signal is selected, the UE first transmits the sub-band detection signal.
- the TRP1 is synchronized and then connected to the corresponding sub-band 1.
- the subband with the strongest subband detection signal for example, the subband 4 of the TRP2
- the subband 4 of the TRP2 is also selected for access, and the data transmission bandwidth of the UE and the UE may be reported.
- the intensity of the detected sub-band detection signal on the sub-band 3 is simultaneously transmitted on the sub-bands 3, 4 by means of the configuration of the cell.
- multiple TRPs may be synchronized or unsynchronized, and the initial synchronization signal and system information may only be in one or a few low frequencies ( The LF) is transmitted on the TRP, or simultaneously on the low frequency and high frequency (HF) TRP.
- the LF low frequencies
- HF high frequency
- only one LF TRP transmits the initial synchronization signal and system information.
- the system bandwidth is 100M and is divided into 2 sub-bands.
- TRP1 and TRP2 share subband 1 and subband 2, and the system information of subband 1 in TRP 1 indicates that the data transmission bandwidth on subband 1 is 50M, and the system information of subband 2 indicates that the data transmission bandwidth on subband 2 is also 50M (see FIG. 7), and the system information of the sub-band 1 in the TRP 2 indicates that the data transmission bandwidth on the sub-band 1 is 60M, and the system information of the sub-band 2 indicates that the data transmission bandwidth on the sub-band 2 is 40M (see Figure 8).
- the transmission resource information of the subband detection signal on the subband 1 and the subband 2 is acquired, and then the subband detection on the subband 1 and the subband 2 is respectively detected according to the transmission resource information. signal. For example, if the data transmission bandwidth of the UE is 100, and it is detected that the sub-band detection signal of the TRP2 on the sub-band 1 is the strongest, the system information can be acquired on the sub-band 1 of the TRP2, and the 60M sub-block of the TRP2 is accessed.
- the UE can also report its capability information, that is, the data transmission bandwidth 100M, to the cell, so that the cell can configure the sub-band 2 of the TRP2 to the UE for data transmission after learning that the UE has the transmission capability of 100M.
- the subband configuration information is transmission resource information of a subband detection signal at a transmission and reception point (TRP)
- the TRP transmits only one sub-band detection signal, and the selecting the sub-band in the system bandwidth for accessing according to the sub-band configuration information includes:
- system information of the TRP indicates the number of subbands of the system bandwidth division and the data transmission bandwidth on each subband;
- the detection sub-band detection signal is mainly based on the transmission resource information of the sub-band detection signal set in advance, and the pre-set transmission resource information is, for example, X physical resource blocks PRB or sub-intermediate locations of the system bandwidth. Carrier.
- the entire system bandwidth is 100M, which is divided into five sub-bands.
- the bandwidth of each sub-band is 20M.
- the corresponding sub-band configuration information is the transmission resource information of the sub-band detection signal on the TRP.
- the TRP transmits the subband detection signal only on the subband 3.
- the UE When the UE is ready to perform subband access, firstly, the transmission resource information of the subband detection signal on the TRP is acquired, and then the subband detection signal on the subband 3 is detected according to the transmission resource information, and the subband 3 is successfully detected. After the subband detection signal, synchronizing with the TRP transmitting the subband detection signal, and acquiring system information of the TRP, the system information indicating the division of the system bandwidth; after acquiring the system information The UE reports its supported data transmission bandwidth to the corresponding cell, so that the cell configures the UE to perform data transmission on one sub-band or multiple sub-bands according to the data transmission bandwidth supported by the UE.
- the cell may configure the UE to perform data transmission on one subband, such as subband 1, according to the data transmission bandwidth of the UE reported by the UE.
- the cell may configure the UE to perform data transmission on the entire system bandwidth according to the data transmission bandwidth of the UE reported by the UE.
- the subband configuration information is subband division information of data transmission in the system bandwidth
- the selecting the sub-bands in the system bandwidth for accessing according to the sub-band configuration information includes:
- Detecting a subband detection signal on the first subband if the data transmission bandwidth of the UE is only greater than or equal to a data transmission bandwidth on the first subband, the first subband having a minimum data transmission bandwidth among all subbands Sub-band and the number of the first sub-bands is one;
- the first subband is accessed.
- the data transmission bandwidth of the UE is greater than or equal to a data transmission bandwidth on one or more subbands in the subband, selecting all second subbands from all subbands of the system bandwidth division, The data transmission bandwidth of the UE is greater than or equal to the data transmission bandwidth on the second sub-band;
- the second sub-band having the strongest sub-band detection signal is selected for access.
- the UE when the UE selects a sub-band for access in the third mode, it is first determined whether there is a sub-band that the UE can access (that is, the data transmission bandwidth of the UE is greater than or equal to that of the accessible sub-band. Data transmission bandwidth), and then if it is judged that there is an accessible subband, if only exists An access subband can only select the accessible subband for access, and if there is more than one accessible subband, the subband with the strongest subband detection signal is selected for access.
- the number of subbands transmitting the subband detection signal may be less than or equal to the number of subbands divided by the system bandwidth.
- the detecting subband detection signal is mainly based on the transmission resource information of the preset subband detection signal, for example, the subband detection signal is periodically transmitted in the middle of the frequency band of each subband (ie, at each transmission interval). Periodic transmission is performed on the middle X subcarriers of the TTI, or periodically on the middle X subcarriers every N TTIs).
- the method further includes:
- the method further comprises:
- a data transmission bandwidth of the UE and information related to a second sub-band that is not accessed so that the cell according to the data transmission bandwidth of the UE and the second
- the subband related information configures the UE to perform data transmission on some or all of the second subbands.
- the information related to the second sub-band that is not accessed may be:
- Subband information of the subband having the strongest subband detection signal among the second subbands that are not accessed or
- the sub-band information of the partial or all of the second sub-bands that are not accessed is arranged in a strong to weak sequence according to the sub-band detection signal strength.
- subband information mentioned here is used to determine the corresponding subband.
- each TRP independently transmits an initial synchronization signal and system information, and the entire system bandwidth is 100M, and the system bandwidth of 100M is divided into two sub-bands in one TRP. Different carrier characteristics are used on different subbands.
- the corresponding subband configuration information is subband 1 with a system bandwidth of 40M and subband 2 of 60M.
- the UE When the UE prepares for subband access, it first acquires subband 1 and 60M subband 2 with a system bandwidth of 40M. For UEs that only support 40M transmission bandwidth, subband detection is selected at the intermediate position of subband 1.
- the signal after successfully detecting the subband detection signal on the subband 1, accessing the subband 1 for data reception and transmission; and for the UE supporting the 100M transmission bandwidth, selecting between the subband 1 and the subband 2
- the position detection sub-band detection signal after successful detection, can select sub-band 1 or sub-band 2 with the strongest sub-band detection signal for access, and can report the data transmission bandwidth of the UE by means of the configuration of the cell. Data transmission is performed on the system bandwidth (ie, subband 1 and subband 2).
- multiple TRPs may be synchronized or unsynchronized, and the same initial synchronization signal and system information are sent, and the entire system bandwidth is 100M. It is divided into 5 sub-bands, each of which has a bandwidth of 20M. The corresponding subband configuration information is divided into five 20M subbands for the system bandwidth.
- TRP1 simultaneously transmits and receives data on subband 1 and subband 2
- TRP2 simultaneously transmits and receives data on subbands 3 to 5.
- the UE When the UE is ready to perform subband access, it first obtains a subband with a system bandwidth of five 20M. For a UE supporting 40M transmission bandwidth, it detects subband detection signals on subbands 1 to 5, respectively, if the UE detects TRP1. The sub-band detection signal on the sub-band 1 is the strongest, and the sub-band detection signal on the sub-band 4 of the TRP2 is the second strong, then the UE can synchronize with the TRP1 and access the TRP1 sub- Band 1, then report the data transmission bandwidth 40M of the UE and the subband detection signal on the subband 4 of the TRP2 is the second strongest to the cell, so that the cell configures the UE to simultaneously subband 1 and TRP2 of the TRP1 4 data transmission.
- the acquiring the subband configuration information that is transmitted in the cell specifically includes:
- the subband configuration information transmitted in the cell is acquired.
- the initial synchronization signal includes a first synchronization signal and a second synchronization signal, such as PSS and SSS, and is mainly used for cell search.
- the process of obtaining the corresponding subband configuration information may be slightly different, as described in detail below.
- the process of acquiring the corresponding subband configuration information is: first detecting the PSS and the SSS, and then determining the TRP to be accessed according to the detection strength (having the strongest detection strength) And performing initial synchronization with the determined TRP, and then acquiring important system information on the determined TRP, and determining the subband configuration information on the entire system bandwidth according to the important system information.
- the process of acquiring the corresponding subband configuration information is: first detecting the PSS and the SSS, and performing initial synchronization with the corresponding cell, and then acquiring important system information transmitted in the cell. According to the important system information, the subband configuration information on the entire system bandwidth can be determined.
- an embodiment of the present disclosure provides a method for accessing a subband for a network side, where the method includes step 201, which is described in detail below.
- Step 201 The sub-band configuration information is sent to the user equipment UE, so that the UE selects a sub-band in the system bandwidth to perform access according to the sub-band configuration information.
- the method for accessing a sub-band in the embodiment of the present disclosure can enable the UE to select a sub-band in the system bandwidth to access according to the sub-band configuration information, so that the UE can perform access according to the sub-band configuration information. Accurately identify and transmit data subbands in the system bandwidth that can be transmitted.
- the subband configuration information is transmission resource information of the subband detection signal on the subband or the TRP; or the subband configuration information is subband division information of the data transmission in the system bandwidth.
- the method further includes:
- an embodiment of the present disclosure provides an apparatus for accessing a sub-band, which corresponds to the method for accessing a sub-band shown in FIG. 1 , where the apparatus includes:
- the obtaining module 111 is configured to acquire subband configuration information transmitted in the cell.
- the selecting module 112 is configured to select a subband in the system bandwidth for access according to the subband configuration information.
- the apparatus for accessing a subband in the embodiment of the present disclosure can obtain the subband configuration information transmitted in the cell, and select a subband in the system bandwidth to access according to the subband configuration information, so that the system can be accurately identified.
- the subband configuration information may be transmission resource information of the subband detection signal on the subband
- the selection module includes:
- a first detecting unit configured to detect a subband detection signal on the corresponding subband according to the transmission resource information
- a first acquiring unit configured to acquire system information of a preselected subband, where the preselected subband is a subband that successfully detects the subband detection signal, where the preselected subband is indicated in system information of the preselected subband Data transmission bandwidth
- a first selecting unit configured to select a matched pre-selected sub-band to access according to the data transmission bandwidth of the user equipment UE and the data transmission bandwidth on the pre-selected sub-band.
- the first selection unit includes:
- a first selecting sub-unit configured to select the first pre-selected sub-band to access when the data transmission bandwidth of the UE is only greater than or equal to a data transmission bandwidth on the first pre-selected sub-band, the first pre-selection The band is a preselected subband having the smallest data transmission bandwidth among the preselected subbands and the number of the first preselected subbands is one;
- a second selection subunit configured to select all the first preselected subbands when the data transmission bandwidth of the UE is greater than or equal to a data transmission bandwidth on one or more preselected subbands in the preselected subband a preselected subband, the data transmission bandwidth of the UE being greater than or equal to a data transmission bandwidth on the second preselected subband;
- a third selection subunit configured to select, from the second preselected subband, a third preselected subband having the strongest subband detection signal for access.
- the device further includes:
- a first reporting module configured to report a data transmission bandwidth of the UE to the cell after accessing the third pre-selected sub-band, so that the cell configures the UE in a part according to a data transmission bandwidth of the UE Or all of the second pre-selected sub-bands for data transmission.
- the device further includes:
- a second reporting module configured to report, after accessing the third pre-selected sub-band, a data transmission bandwidth of the UE and information related to a second pre-selected sub-band that is not accessed, to the cell
- the cell is configured to perform data transmission on the part or all of the second pre-selected sub-bands according to the data transmission bandwidth of the UE and the information related to the second pre-selected sub-band that is not accessed, where the The information related to the second preselected subband that is not accessed is the strength of the partial or all detected subband detection signals on the second preselected subband that is not accessed, the unaccessed
- the subband configuration information may be transmission resource information of a subband detection signal at a transmission and reception point (TRP), and the TRP transmits a subband detection signal
- the selection module includes:
- a second detecting unit configured to detect a subband detection signal on a subband of the corresponding TRP according to the transmission resource information
- a second acquiring unit configured to acquire system information of the TRP, where the system information of the TRP indicates the number of subbands of the system bandwidth division and the data transmission bandwidth on each subband;
- a reporting unit configured to report a data transmission bandwidth of the UE to the cell, so that the cell configures the UE to perform data transmission on part or all of the sub-band according to the data transmission bandwidth of the UE;
- a receiving unit configured to receive configuration information of the cell, and perform sub-band access according to the configuration information.
- the subband configuration information may be subband division information of data transmission in the system bandwidth
- the selection module includes:
- a determining unit configured to determine, according to the subband splitting information, a number of subbands of the system bandwidth partition and a data transmission bandwidth on each subband;
- a third detecting unit configured to detect a subband detection signal on the first subband when the data transmission bandwidth of the UE is only greater than or equal to a data transmission bandwidth on the first subband, where the first subband is all a subband having a minimum data transmission bandwidth in the subband and the number of the first subbands is one;
- an access unit configured to access the first sub-band when the sub-band detection signal on the first sub-band is successfully detected.
- the selection module further includes:
- a second selecting unit configured to select all of the subbands of the system bandwidth partition when the data transmission bandwidth of the UE is greater than or equal to a data transmission bandwidth on one or more subbands in the subband a second sub-band, the data transmission bandwidth of the UE is greater than or equal to a data transmission bandwidth on the second sub-band;
- a fourth detecting unit configured to detect a sub-band detection signal on the second sub-band
- a third selecting unit configured to select the second sub-band with the strongest sub-band detection signal for access.
- the device further includes:
- a third reporting module configured to report a data transmission bandwidth of the UE to the cell after the second sub-band having the strongest sub-band detection signal is selected for access, so that the cell according to the The data transmission bandwidth of the UE configures the UE to perform data transmission on some or all of the second sub-bands.
- the device further includes:
- a fourth reporting module configured to report a data transmission bandwidth of the UE and a second subband that is not accessed after the second subband with the strongest subband detection signal is selected for accessing Correlating information to the cell, so that the cell configures the UE to perform on part or all of the second sub-band according to the data transmission bandwidth of the UE and the information related to the second sub-band that is not accessed.
- the information related to the second sub-band that is not accessed is the strength of the partial or all detected sub-band detection signals on the second sub-band that is not accessed, the The sub-band information of the sub-band having the strongest sub-band detection signal among the second sub-bands that are accessed or the part or all of the un-accessed second sub-ranges in the order of strong or weak sub-band detection signal strength Subband information with belt.
- the obtaining module includes:
- a third acquiring unit configured to acquire an initial synchronization signal in the cell
- a synchronization unit configured to complete synchronization with the cell according to the initial synchronization signal
- a fourth acquiring unit configured to acquire the subband configuration information transmitted in the cell after completing synchronization with the cell.
- the cell has one TRP or multiple TRPs.
- TRPs when there are multiple TRPs in the cell, different TRPs are synchronous or non-synchronized.
- the TRP can use one or more subbands in the system bandwidth.
- different carrier characteristics are used on different TRPs or different sub-bands.
- the subband configuration information may be carried by a primary information block or a system information block.
- an embodiment of the present disclosure provides an apparatus for accessing a sub-band, as shown in FIG. Corresponding to the method of accessing the sub-band, wherein the device comprises:
- the sending module 121 is configured to send the sub-band configuration information to the user equipment UE, so that the UE selects a sub-band in the system bandwidth to perform access according to the sub-band configuration information.
- the subband configuration information is transmission resource information of the subband detection signal on the subband or the TRP; or the subband configuration information is subband division information of the data transmission in the system bandwidth.
- the device further includes:
- a receiving module configured to receive, after the UE accesses the selected subband, a data transmission bandwidth of the UE reported by the UE;
- a configuration module configured to configure, according to the data transmission bandwidth of the UE, the UE to perform data transmission on a subband that partially or completely detects the subband detection signal.
- an embodiment of the present disclosure provides a user equipment UE, where the UE includes a first bus 130, a first processor 131, a first transceiver 132, a first bus interface 133, a first memory 134, and a user. Interface 135.
- the first processor 131 is configured to read the program in the first memory 134, and perform the following process: acquiring the subband configuration information transmitted in the cell by using the first transceiver 132, and selecting according to the subband configuration information. Subbands in the system bandwidth are accessed.
- the first transceiver 132 is configured to receive and transmit data under the control of the first processor 131.
- a bus architecture (represented by a first bus 130), which may include any number of interconnected buses and bridges, the first bus 130 will include one or more of the generic first processors 131 The processors are linked together with various circuits of the memory represented by the first memory 134.
- the first bus 130 can also link various other circuits, such as peripherals, voltage regulators, and power management circuits, as is known in the art, and therefore, will not be further described herein.
- the first bus interface 133 provides an interface between the first bus 130 and the first transceiver 132.
- the first transceiver 132 can be an element or a plurality of elements, such as a plurality of receivers and transmitters, providing means for communicating with various other devices on a transmission medium.
- the first transceiver 132 receives external data from other devices.
- the first transceiver 132 is configured to send the processed data of the first processor 131 to other devices.
- a user interface 135 can also be provided, such as a keypad, display, speaker, microphone, joystick.
- the first processor 131 is responsible for managing the first bus 130 and the usual processing, as described above. General operating system.
- the first memory 134 can be used to store data used by the first processor 131 when performing operations.
- the first processor 131 may be a CPU, an ASIC, an FPGA, or a CPLD.
- an embodiment of the present disclosure provides a base station including a second bus 140, a second transceiver 141, an antenna 142, a second bus interface 143, a second processor 144, and a second memory 145.
- the second processor 144 is configured to read the program in the second memory 145, and perform the following process: sending the sub-band configuration information to the UE by using the second transceiver 141, so that the UE is configured according to the sub-band according to the sub-band configuration information. , select the subband in the system bandwidth for access.
- the second transceiver 141 is configured to receive and transmit data under the control of the second processor 144.
- a bus architecture (represented by a second bus 140), which may include any number of interconnected buses and bridges, the second bus 140 will include one or more of the second processor 144
- the various circuits of the memory represented by the processor and the second memory 145 are linked together.
- the second bus 140 can also link various other circuits, such as peripherals, voltage regulators, and power management circuits, as is known in the art, and therefore, will not be further described herein.
- the second bus interface 143 provides an interface between the second bus 140 and the second transceiver 141.
- the second transceiver 141 can be an element or a plurality of elements, such as a plurality of receivers and transmitters, providing means for communicating with various other devices on a transmission medium.
- Data processed by the second processor 144 is transmitted over the wireless medium via the antenna 142. Further, the antenna 142 also receives the data and transmits the data to the second processor 144.
- the second processor 144 is responsible for managing the second bus 140 and the usual processing, and can also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions.
- the second memory 145 can be used to store data used by the second processor 144 when performing operations.
- the second processor 144 can be a CPU, an ASIC, an FPGA, or a CPLD.
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Abstract
本公开提供一种接入子带的方法、装置及存储媒介,以解决现有的UE初始接入系统的方法不支持UE仅工作在整个系统带宽中的一个或者多个子带上的问题;其中,所述接入子带的方法包括:获取小区中传输的子带配置信息,并根据所述子带配置信息,选择系统带宽中的子带进行接入。
Description
相关申请的交叉引用
本申请主张在2016年8月12日在中国国家知识产权局提交的第201610665283.0号中国专利申请的优先权,其全部内容通过引用包含于此。
本公开涉及通信技术领域,具体涉及一种接入子带的方法、装置及存储媒介。
当前,用户设备(User Equipment,简称UE)要接入长期演进(Long Term Evolution,简称LTE)网络时,必须经过小区搜索、获取小区系统信息等过程。
具体的,为了支持小区搜索,LTE定义了2个下行同步信号:主同步信号(Primary Synchronization Signal,简称PSS)和辅同步信号(Secondary Synchronization Signal,简称SSS)。对于频分双工(Frequency Division Duplex,简称FDD),PSS在子帧0和5的第一个间隙(slot)的最后一个正交频分复用(Orthogonal Frequency Division Multiplex,简称OFDM)符号上发送,SSS与PSS在同一子帧同一slot上发送,但SSS位于倒数第二个OFDM符号上,比PSS提前一个OFDM符号。对于时分双工(Time Division Duplex,简称TDD),PSS在子帧1和6的第三个OFDM符号上发送,而SSS在子帧0和5的最后一个OFDM符号上发送,比PSS提前3个符号。
UE在开机时并不知道小区系统带宽的大小,但它知道自己所支持的频带和带宽。为了使UE能够尽快检测到系统的频率和符号同步信息,无论下行系统带宽的大小是多少,PSS和SSS都位于中心的72个子载波上(即中心的6个RB(Resource Block)上,不包含DC(direct current)子载波。实际只使用了频率中心DC子载波周围的62个子载波,两边各留了5个子载波用作保护波段)。UE会在其支持的LTE频带范围内进行光栅搜索去尝试接收PSS和
SSS。通过接收PSS和SSS,UE能够获得小区的物理小区编号(Physical cell ID,简称PCI)和系统帧的定时(例如10ms),并确定小区是工作在FDD模式还是TDD模式下,使用了普通CP(Cyclic Prefix)还是扩展CP,从而完成小区搜索。
小区搜索完成之后,UE已经与小区取得了下行同步,UE需要接着获取到小区的系统信息(System Information,简称SI),这样才能知道该小区是如何配置的,以便接入该小区并在该小区内正确地工作。该系统信息是小区级别的信息,即对接入该小区的所有UE生效。其中,系统信息可分为主要信息块(Master Information Block,简称MIB)和多个系统信息块(System Information Block,简称SIB),每个系统信息包含了与某个功能相关的一系列参数集合。
小区会不断地广播这些系统信息。通过检测在广播信道(BCH)上传输的MIB,UE能够获得下行系统带宽、PHICH(Physical Hybrid ARQ Indicator Channel)配置和系统帧号,同时还能获得小区特定的天线端口数目和L1/L2上控制信令的传输模式。但是MIB中只包含非常有限的系统信息,更多的系统信息则是通过在下行共享信道DL-SCH(Downlink Share Channel)中传输的SIB来告诉UE的。UE需要先在子帧上盲检经SI-RNTI(System Information Radio Network Temporary Identifier)加扰的物理下行控制信道PDCCH(Physical Downlink Control Channel),才能知道该子帧是否存在SIB信息。小区可以根据具体情况灵活地改变SIB所占的带宽、使用的RB集合以及传输格式等。
但在5G系统中,UE如何进行初始接入还没有明确的方法,尤其是UE的工作带宽可能小于系统带宽,因此有必要提出一种接入方法,以支持UE仅工作在整个系统带宽中的一个或者多个子带上。
发明内容
本公开的目的在于提供一种接入子带的方法及装置,以解决现有的UE初始接入系统的方法不支持UE仅工作在整个系统带宽中的一个或者多个子带上的问题。
为了实现上述的目的,本公开提供一种接入子带的方法,包括:
获取小区中传输的子带配置信息;
根据所述子带配置信息,选择系统带宽中的子带进行接入。
可选的,所述子带配置信息为子带检测信号在子带上的传输资源信息,所述根据所述子带配置信息,选择系统带宽中的子带进行接入的步骤包括:
根据所述传输资源信息,检测相应子带上的子带检测信号;
获取预选子带的系统信息,所述预选子带为成功检测到所述子带检测信号的子带,所述预选子带的系统信息中指示了所述预选子带上的数据传输带宽;
根据用户设备UE的数据传输带宽和所述预选子带上的数据传输带宽,选择匹配的预选子带进行接入。
可选的,所述根据UE的数据传输带宽和所述预选子带上的数据传输带宽,选择匹配的预选子带进行接入的步骤包括:
若所述UE的数据传输带宽只大于或等于第一预选子带上的数据传输带宽,选择所述第一预选子带进行接入,所述第一预选子带为所述预选子带中具有最小数据传输带宽的预选子带且所述第一预选子带的数量为一个;
若所述UE的数据传输带宽大于或等于所述预选子带中一个以上的预选子带上的数据传输带宽,从所述预选子带中选择出所有的第二预选子带,所述UE的数据传输带宽大于或等于所述第二预选子带上的数据传输带宽;
从所述第二预选子带中选择出具有最强子带检测信号的第三预选子带进行接入。
可选的,在所述从所述第二预选子带中选择出具有最强子带检测信号的第三预选子带进行接入之后,所述方法还包括:
上报所述UE的数据传输带宽至所述小区,使得所述小区根据所述UE的数据传输带宽配置所述UE在部分或全部第二预选子带上进行数据传输。
可选的,在所述从所述第二预选子带中选择出具有最强子带检测信号的第三预选子带进行接入之后,所述方法还包括:
上报所述UE的数据传输带宽和与未被接入的第二预选子带相关的信息至所述小区,使得所述小区根据所述UE的数据传输带宽和所述与未被接入
的第二预选子带相关的信息配置所述UE在部分或全部第二预选子带上进行数据传输,其中,所述与未被接入的第二预选子带相关的信息为部分或全部检测到的所述未被接入的第二预选子带上的子带检测信号的强度、所述未被接入的第二预选子带中具有最强子带检测信号的子带的子带信息或者按照子带检测信号强度由强到弱顺序排列的部分或全部所述未被接入的第二预选子带的子带信息。
可选的,所述子带配置信息为子带检测信号在传输接收点(transmission reception point,简称TRP)上的传输资源信息,所述TRP传输一个子带检测信号,所述根据所述子带配置信息,选择系统带宽中的子带进行接入的步骤包括:
根据所述传输资源信息,检测相应TRP的子带上的子带检测信号;
获取所述TRP的系统信息,所述TRP的系统信息中指示了所述系统带宽划分的子带数以及每个子带上的数据传输带宽;
上报UE的数据传输带宽至所述小区,使得所述小区根据所述UE的数据传输带宽配置所述UE在部分或全部子带上进行数据传输;
接收所述小区的配置信息并根据所述配置信息进行子带的接入。
可选的,所述子带配置信息为所述系统带宽中数据传输的子带划分信息,所述根据所述子带配置信息,选择系统带宽中的子带进行接入的步骤包括:
根据所述子带划分信息,确定所述系统带宽划分的子带数以及每个子带上的数据传输带宽;
若UE的数据传输带宽只大于或等于第一子带上的数据传输带宽,检测所述第一子带上的子带检测信号,所述第一子带为所有子带中具有最小数据传输带宽的子带且所述第一子带的数量为一个;
若成功检测到所述第一子带上的子带检测信号,接入所述第一子带。
可选的,所述根据所述子带配置信息,选择系统带宽中的子带进行接入的步骤还包括:
若所述UE的数据传输带宽大于或等于所述子带中一个以上的子带上的数据传输带宽,从所述系统带宽划分的所有子带中选择出所有的第二子带,所述UE的数据传输带宽大于或等于所述第二子带上的数据传输带宽;
检测所述第二子带上的子带检测信号;
选择具有最强的所述子带检测信号的第二子带进行接入。
可选的,在所述选择具有最强的所述子带检测信号的第二子带进行接入之后,所述方法还包括:
上报所述UE的数据传输带宽至所述小区,使得所述小区根据所述UE的数据传输带宽配置所述UE在部分或全部第二子带上进行数据传输。
可选的,在所述选择具有最强的所述子带检测信号的第二子带进行接入之后,所述方法还包括:
上报所述UE的数据传输带宽和与未被接入的第二子带相关的信息至所述小区,使得所述小区根据所述UE的数据传输带宽和所述与未被接入的第二子带相关的信息配置所述UE在部分或全部第二子带上进行数据传输,其中,所述与未被接入的第二子带相关的信息为部分或全部检测到的所述未被接入的第二子带上的子带检测信号的强度、所述未被接入的第二子带中具有最强子带检测信号的子带的子带信息或者按照子带检测信号强度由强到弱顺序排列的部分或全部所述未被接入的第二子带的子带信息。
可选的,所述获取小区中传输的子带配置信息的步骤包括:
获取所述小区中的初始同步信号;
根据所述初始同步信号完成与所述小区之间的同步;
在完成与所述小区之间的同步后,获取所述小区中传输的所述子带配置信息。
可选的,所述小区中具有一个TRP或者多个TRP。
可选的,当所述小区中具有多个TRP时,不同的TRP之间是同步的或者非同步的。
可选的,所述TRP使用系统带宽中的一个或者多个子带。
可选的,不同的TRP或者不同的子带上使用不同的载波特性。
可选的,所述子带配置信息通过主要信息块或系统信息块来承载。
本公开还提供一种接入子带的方法,包括:
下发子带配置信息至用户设备UE,使得所述UE根据所述子带配置信息,选择系统带宽中的子带进行接入。
可选的,所述子带配置信息为子带检测信号在子带或TRP上的传输资源信息;或者,所述子带配置信息为所述系统带宽中数据传输的子带划分信息。
可选的,在所述UE接入选择的子带后,所述方法还包括:
接收所述UE上报的所述UE的数据传输带宽;
根据所述UE的数据传输带宽,配置所述UE在部分或全部检测到子带检测信号的子带上进行数据传输。
本公开又提供一种接入子带的装置,包括:
获取模块,用于获取小区中传输的子带配置信息;
选择模块,用于根据所述子带配置信息,选择系统带宽中的子带进行接入。
可选的,所述子带配置信息为子带检测信号在子带上的传输资源信息,所述选择模块包括:
第一检测单元,用于根据所述传输资源信息,检测相应子带上的子带检测信号;
第一获取单元,用于获取预选子带的系统信息,所述预选子带为成功检测到所述子带检测信号的子带,所述预选子带的系统信息中指示了所述预选子带上的数据传输带宽;
第一选择单元,用于根据用户设备UE的数据传输带宽和所述预选子带上的数据传输带宽,选择匹配的预选子带进行接入。
可选的,所述第一选择单元包括:
第一选择子单元,用于在所述UE的数据传输带宽只大于或等于第一预选子带上的数据传输带宽时,选择所述第一预选子带进行接入,所述第一预选子带为所述预选子带中具有最小数据传输带宽的预选子带且所述第一预选子带的数量为一个;
第二选择子单元,用于在所述UE的数据传输带宽大于或等于所述预选子带中一个以上的预选子带上的数据传输带宽时,从所述预选子带中选择出所有的第二预选子带,所述UE的数据传输带宽大于或等于所述第二预选子带上的数据传输带宽;
第三选择子单元,用于从所述第二预选子带中选择出具有最强子带检测
信号的第三预选子带进行接入。
可选的,所述装置还包括:
第一上报模块,用于在接入所述第三预选子带之后,
上报所述UE的数据传输带宽至所述小区,使得所述小区根据所述UE的数据传输带宽配置所述UE在部分或全部第二预选子带上进行数据传输。
可选的,所述装置还包括:
第二上报模块,用于在接入所述第三预选子带之后,上报所述UE的数据传输带宽和与未被接入的第二预选子带相关的信息至所述小区,使得所述小区根据所述UE的数据传输带宽和所述与未被接入的第二预选子带相关的信息配置所述UE在部分或全部第二预选子带上进行数据传输,其中,所述与未被接入的第二预选子带相关的信息为部分或全部检测到的所述未被接入的第二预选子带上的子带检测信号的强度、所述未被接入的第二预选子带中具有最强子带检测信号的子带的子带信息或者按照子带检测信号强度由强到弱顺序排列的部分或全部所述未被接入的第二预选子带的子带信息。
可选的,所述子带配置信息为子带检测信号在传输接收点(TRP)上的传输资源信息,所述TRP传输一个子带检测信号,所述选择模块包括:
第二检测单元,用于根据所述传输资源信息,检测相应TRP的子带上的子带检测信号;
第二获取单元,用于获取所述TRP的系统信息,所述TRP的系统信息中指示了所述系统带宽划分的子带数以及每个子带上的数据传输带宽;
上报单元,用于上报UE的数据传输带宽至所述小区,使得所述小区根据所述UE的数据传输带宽配置所述UE在部分或全部子带上进行数据传输;
接收单元,用于接收所述小区的配置信息并根据所述配置信息进行子带的接入。
可选的,所述子带配置信息为所述系统带宽中数据传输的子带划分信息,所述选择模块包括:
确定单元,用于根据所述子带划分信息,确定所述系统带宽划分的子带数以及每个子带上的数据传输带宽;
第三检测单元,用于在UE的数据传输带宽只大于或等于第一子带上的
数据传输带宽时,检测所述第一子带上的子带检测信号,所述第一子带为所有子带中具有最小数据传输带宽的子带且所述第一子带的数量为一个;
接入单元,用于在成功检测到所述第一子带上的子带检测信号时,接入所述第一子带。
可选的,所述选择模块还包括:
第二选择单元,用于在所述UE的数据传输带宽大于或等于所述子带中一个以上的子带上的数据传输带宽时,从所述系统带宽划分的所有子带中选择出所有的第二子带,所述UE的数据传输带宽大于或等于所述第二子带上的数据传输带宽;
第四检测单元,用于检测所述第二子带上的子带检测信号;
第三选择单元,用于选择具有最强的所述子带检测信号的第二子带进行接入。
可选的,所述装置还包括:
第三上报模块,用于在所述选择具有最强的所述子带检测信号的第二子带进行接入之后,上报所述UE的数据传输带宽至所述小区,使得所述小区根据所述UE的数据传输带宽配置所述UE在部分或全部第二子带上进行数据传输。
可选的,所述装置还包括:
第四上报模块,用于在所述选择具有最强的所述子带检测信号的第二子带进行接入之后,上报所述UE的数据传输带宽和与未被接入的第二子带相关的信息至所述小区,使得所述小区根据所述UE的数据传输带宽和所述与未被接入的第二子带相关的信息配置所述UE在部分或全部第二子带上进行数据传输,其中,所述与未被接入的第二子带相关的信息为部分或全部检测到的所述未被接入的第二子带上的子带检测信号的强度、所述未被接入的第二子带中具有最强子带检测信号的子带的子带信息或者按照子带检测信号强度由强到弱顺序排列的部分或全部所述未被接入的第二子带的子带信息。
可选的,所述获取模块包括:
第三获取单元,用于获取所述小区中的初始同步信号;
同步单元,用于根据所述初始同步信号完成与所述小区之间的同步;
第四获取单元,用于在完成与所述小区之间的同步后,获取所述小区中传输的所述子带配置信息。
可选的,所述小区中具有一个TRP或者多个TRP。
可选的,当所述小区中具有多个TRP时,不同的TRP之间是同步的或者非同步的。
可选的,所述TRP使用系统带宽中的一个或者多个子带。
可选的,不同的TRP或者不同的子带上使用不同的载波特性。
可选的,所述子带配置信息通过主要信息块或系统信息块来承载。
本公开再提供一种接入子带的装置,包括:
下发模块,用于下发子带配置信息至用户设备UE,使得所述UE根据所述子带配置信息,选择系统带宽中的子带进行接入。
可选的,所述子带配置信息为子带检测信号在子带或TRP上的传输资源信息;或者,所述子带配置信息为所述系统带宽中数据传输的子带划分信息。
可选的,所述装置还包括:
接收模块,用于在所述UE接入选择的子带后,接收所述UE上报的所述UE的数据传输带宽;
配置模块,用于根据所述UE的数据传输带宽,配置所述UE在部分或全部检测到子带检测信号的子带上进行数据传输。
本公开还提供了一种接入子带的装置,包括:
处理器;以及
收发机,用于在所述处理器的控制下接收和发送数据,
所述处理器配置为执行以下操作:
获取小区中传输的子带配置信息;
根据所述子带配置信息,选择系统带宽中的子带进行接入。
本公开还提供了一种接入子带的装置,包括:
处理器;以及
收发机,用于在所述处理器的控制下接收和发送数据,
所述处理器配置为执行以下操作:
下发子带配置信息至用户设备(UE),使得所述UE根据所述子带配置信
息,选择系统带宽中的子带进行接入。
本公开还提供了一种非易失性计算机可读存储媒介,所述计算机可读存储媒介存储有能够被处理器执行的计算机可读指令,当所述计算机可读指令被处理器执行时,所述处理器执行以下操作:
获取小区中传输的子带配置信息;
根据所述子带配置信息,选择系统带宽中的子带进行接入。
本公开还提供了一种非易失性计算机可读存储媒介,所述计算机可读存储媒介存储有能够被处理器执行的计算机可读指令,当所述计算机可读指令被处理器执行时,所述处理器执行以下操作:
下发子带配置信息至用户设备(UE),使得所述UE根据所述子带配置信息,选择系统带宽中的子带进行接入。
通过本公开的上述技术方案,本公开的有益效果在于:
本公开的接入子带的方法及装置,通过获取小区中传输的子带配置信息,并根据所述子带配置信息,选择系统带宽中的子带进行接入,能够准确识别出系统带宽中的可以数据传输的子带并接入。
为了更清楚地说明本公开实施例的技术方案,下面将对本公开实施例中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本公开的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动性的前提下,还可以根据这些附图获得其他的附图。
图1为本公开实施例的接入子带的方法的流程图。
图2为5G新空口原型系统中的第一网络部署场景的示意图。
图3为本公开实施例的具体实例中的子带分配示意图。
图4为5G新空口原型系统中的第二网络部署场景的示意图。
图5为本公开实施例的另一具体实例中的子带分配示意图。
图6为5G新空口原型系统中的第三网络部署场景的示意图。
图7为本公开实施例的又一具体实例中TRP1的子带分配示意图。
图8为本公开实施例的又一具体实例中TRP2的子带分配示意图。
图9为本公开实施例的再一具体实例中的子带分配示意图。
图10为本公开实施例的接入子带的方法的流程图。
图11为本公开实施例的接入子带的装置的结构示意图。
图12为本公开实施例的接入子带的装置的结构示意图。
图13为本公开实施例的用户设备的结构示意图。
图14为本公开实施例的基站的结构示意图。
下面将结合本公开实施例中的附图,对本公开实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本公开一部分实施例,而不是全部的实施例。基于本公开中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本公开保护的范围。
参见图1所示,本公开实施例提供一种接入子带的方法,用于终端侧,其中,所述方法包括步骤101~步骤102,详述如下。
步骤101:获取小区中传输的子带配置信息。
本公开实施例中,所述小区即系统信息区域(SIA)中可具有一个传输接收点(transmission reception point,简称TRP)(如参见图2所示)或者多个TRP(如参见图4或图6所示)。所述TRP可广播对应的系统信息。
并且,当所述小区中具有多个TRP时,不同的TRP之间可以是同步的,也可以是非同步的。而当小区的系统带宽分为多个子带时,所述小区中的TRP可以使用系统带宽中的一个或者多个子带。
在本公开具体实施例中,不同的TRP或者不同的子带上可以使用不同的载波特性。所述载波特性例如包括子载波间隔、带宽、OFDM符号长度、CP长度等,本公开不对其进行限制。
而所述子带配置信息属于相应小区的系统信息,主要通过主要信息块MIB或系统信息块SIB-X(X值由对应的系统信息块决定)来承载。
步骤102:根据所述子带配置信息,选择系统带宽中的子带进行接入。
本公开实施例中,所述子带配置信息为子带检测信号在子带或TRP上的传输资源信息;或者,所述子带配置信息为所述系统带宽中数据传输的子带
划分信息。其中,所述子带检测信号是由TRP传输的,一般不同的TRP传输的子带检测信号也是不同的,两者一一对应。
这样,本公开实施例的接入子带的方法,通过获取小区中传输的子带配置信息,并根据所述子带配置信息,选择系统带宽中的子带进行接入,能够准确识别出系统带宽中的可以数据传输的子带并接入。
由于所述子带配置信息指示内容的不同,所以,本公开实施例的接入子带的方法可采用不同方式实现,详述如下。
方式一:所述子带配置信息为子带检测信号在子带上的传输资源信息
在方式一的情况下,所述根据所述子带配置信息,选择系统带宽中的子带进行接入具体包括:
根据所述传输资源信息,检测相应子带上的子带检测信号;
获取预选子带的系统信息,所述预选子带为成功检测到所述子带检测信号的子带,所述预选子带的系统信息中指示了所述预选子带上的数据传输带宽;
根据用户设备(UE)的数据传输带宽和所述预选子带上的数据传输带宽,选择匹配的预选子带进行接入。
需要说明的是,根据实际情况,传输子带检测信号的子带的数量可小于或等于所述系统带宽划分的子带数,相应的,所述预选子带的数量也可小于或等于所述系统带宽划分的子带数。
进一步的,所述根据用户设备UE的数据传输带宽和所述预选子带上的数据传输带宽,选择匹配的预选子带进行接入具体为:
若所述UE的数据传输带宽只大于或等于第一预选子带上的数据传输带宽,选择所述第一预选子带进行接入,所述第一预选子带为所述预选子带中具有最小数据传输带宽的预选子带且所述第一预选子带的数量为一个;
若所述UE的数据传输带宽大于或等于所述预选子带中一个以上的预选子带上的数据传输带宽,从所述预选子带中选择出所有的第二预选子带,所述UE的数据传输带宽大于或等于所述第二预选子带上的数据传输带宽;
从所述第二预选子带中选择出具有最强子带检测信号的第三预选子带进行接入。
也就是说,在选择子带进行接入时,要首先判断是否存在UE可接入的子带(即UE的数据传输带宽要大于或等于可接入子带上的数据传输带宽),然后在判断出存在可接入子带的情况下,如果只存在一个可接入子带,就只能选择该可接入子带进行接入,而如果存在一个以上的可接入子带,就选择其中具有最强子带检测信号的子带进行接入。
而在完成所述第三预选子带的接入之后,所述方法还包括:
上报所述UE的数据传输带宽至所述小区,使得所述小区根据所述UE的数据传输带宽配置所述UE在部分或全部第二预选子带上进行数据传输。
或者,所述方法还包括:
上报所述UE的数据传输带宽和与未被接入的第二预选子带相关的信息至所述小区,使得所述小区根据所述UE的数据传输带宽和所述与未被接入的第二预选子带相关的信息配置所述UE在部分或全部第二预选子带上进行数据传输。
其中,所述与未被接入的第二预选子带相关的信息可为:
部分或全部检测到的所述未被接入的第二预选子带上的子带检测信号的强度;或者
所述未被接入的第二预选子带中具有最强子带检测信号的子带的子带信息;或者
按照子带检测信号强度由强到弱顺序排列的部分或全部所述未被接入的第二预选子带的子带信息。
需要说明的是,此处提到的子带信息用于确定对应的子带。
下面,通过具体实例对方式一的接入子带的方法进行说明。
实例1
参见图2和图3所示,假定一个小区中具有一个TRP,每个TRP独立发送初始同步信号和系统信息,整个系统带宽为100M,在一个TRP中将100M的系统带宽分为两个子带,不同子带上使用了不同的载波特性,并且子带1中的系统信息指示了子带1上的数据传输带宽为40M,子带2中的系统信息指示了子带2上的数据传输带宽为60M。
UE准备进行子带接入时,首先获取到子带检测信号在子带1和子带2
上的传输资源信息,然后根据所述传输资源信息,分别检测子带1和子带2上的子带检测信号,在成功检测到子带1和子带2上的子带检测信号后,获取子带1和子带2的系统信息,所述系统信息指示了相应子带上的数据传输带宽。这样,对于仅支持40M传输带宽的UE,只能选择接入子带1以在子带1上进行数据传输,而对于支持100M传输带宽的UE,就可选择具有最强子带检测信号的子带1或子带2进行接入,并可通过上报自身能力(例如UE的数据传输带宽)借助小区的配置同时在子带1和子带2上进行数据传输。
实例2
参见图4和图5所示,假定一个小区中具有多个TRP,多个TRP之间可以是同步的或者不同步的,且发送相同的初始同步信号和系统信息,整个系统带宽为100M,共分为5个子带,每个子带的带宽为20M。相应的子带配置信息为子带检测信号在子带1~5上的传输资源信息。并且,TRP1同时在子带1和子带2上收发数据,TRP2同时在子带3~5上收发数据(即每个子带仅有一个TRP使用)。
UE准备进行子带接入时,首先获取到子带检测信号在子带1~5上的传输资源信息,然后根据所述传输资源信息,分别检测子带1~5上的子带检测信号,在成功检测到子带1~5上的子带检测信号后,获取子带1~5的系统信息,所述系统信息指示了相应子带上的数据传输带宽。这样,对于仅支持20M传输带宽的UE,只能选择其中一个子带进行接入,例如如果选择了具有最强子带检测信号的子带1,那么UE要首先与传输所述子带检测信号的TRP1进行同步,然后接入相应的子带1。而对于支持大于或等于40M传输带宽的UE,同样要选择具有最强子带检测信号的子带例如TRP2的子带4进行接入,并可通过上报所述UE的数据传输带宽和所述UE已检测到的子带3上的子带检测信号的强度借助小区的配置同时在子带3、4上进行数据传输。
实例3
参见图6、图7和图8所示,假定一个小区中具有多个TRP,多个TRP之间可以是同步的或者不同步的,初始同步信号和系统信息可仅在一个或者少部分低频(LF)的TRP上发送,或者同时在低频和高频(HF)的TRP上进行发送,图6中仅一个LF的TRP发送初始同步信号和系统信息。整个系
统带宽为100M,共分为2个子带。假定TRP1和TRP2共用子带1和子带2,TRP 1中子带1的系统信息指示子带1上的数据传输带宽为50M,子带2的系统信息指示子带2上的数据传输带宽也为50M(参见图7所示),而TRP 2中子带1的系统信息指示子带1上的数据传输带宽为60M,子带2的系统信息指示子带2上的数据传输带宽为40M(参见图8所示)。
UE准备进行子带接入时,首先获取到子带检测信号在子带1和子带2上的传输资源信息,然后根据所述传输资源信息,分别检测子带1和子带2上的子带检测信号。例如,如果UE的数据传输带宽为100,且检测到TRP2在子带1上的子带检测信号最强,那么就可在TRP2的子带1上获取系统信息,并接入TRP2的60M的子带1;UE还可将其能力信息即数据传输带宽100M上报给小区,使得所述小区在获知UE具有100M的传输能力之后,可将TRP2的子带2配置给所述UE以进行数据传输。
方式二:所述子带配置信息为子带检测信号在传输接收点(TRP)上的传输资源信息
在方式二的情况下,所述TRP只传输一个子带检测信号,所述根据所述子带配置信息,选择系统带宽中的子带进行接入具体包括:
根据所述传输资源信息,检测相应TRP的子带上的子带检测信号;
获取所述TRP的系统信息,所述TRP的系统信息中指示了所述系统带宽划分的子带数以及每个子带上的数据传输带宽;
上报UE的数据传输带宽至所述小区,使得所述小区根据所述UE的数据传输带宽配置所述UE在部分或全部子带上进行数据传输;
接收所述小区的配置信息并根据所述配置信息进行子带的接入。
其中,在方式二的情况下,检测子带检测信号主要依据预先设置的子带检测信号的传输资源信息,而预先设置的传输资源信息例如为系统带宽中间位置的X个物理资源块PRB或者子载波。
下面,通过具体实例对方式二的接入子带的方法进行说明。
实例1
参见图9所示,整个系统带宽为100M,共分为5个子带,每个子带的带宽为20M,相应的子带配置信息为子带检测信号在TRP上的传输资源信息,
所述TRP只在子带3上传输子带检测信号。
UE准备进行子带接入时,首先获取到子带检测信号在TRP上的传输资源信息,然后根据所述传输资源信息,检测子带3上的子带检测信号,在成功检测到子带3上的子带检测信号后,与传输所述子带检测信号的TRP进行同步,并获取所述TRP的系统信息,所述系统信息指示了系统带宽的划分情况;在获取到所述系统信息后,UE上报其支持的数据传输带宽至相应的小区,使得所述小区根据所述UE上报的其支持的数据传输带宽配置所述UE在一个子带或多个子带上进行数据传输。这样,对于仅支持20M传输带宽的UE,小区可根据所述UE上报的所述UE的数据传输带宽配置所述UE在一个子带例如子带1上进行数据传输。而对于支持100M传输带宽的UE,小区可根据所述UE上报的所述UE的数据传输带宽配置所述UE在整个系统带宽上进行数据传输。
方式三:所述子带配置信息为所述系统带宽中数据传输的子带划分信息
在方式三的情况下,所述根据所述子带配置信息,选择系统带宽中的子带进行接入具体包括:
根据所述子带划分信息,确定所述系统带宽划分的子带数以及每个子带上的数据传输带宽;
若UE的数据传输带宽只大于或等于第一子带上的数据传输带宽,检测所述第一子带上的子带检测信号,所述第一子带为所有子带中具有最小数据传输带宽的子带且所述第一子带的数量为一个;
若成功检测到所述第一子带上的子带检测信号,接入所述第一子带。
而若所述UE的数据传输带宽大于或等于所述子带中一个以上的子带上的数据传输带宽,从所述系统带宽划分的所有子带中选择出所有的第二子带,所述UE的数据传输带宽大于或等于所述第二子带上的数据传输带宽;
检测所述第二子带上的子带检测信号;
选择具有最强的所述子带检测信号的第二子带进行接入。
需要说明的是,UE在方式三的情况下选择子带进行接入时,要首先判断是否存在UE可接入的子带(即UE的数据传输带宽要大于或等于可接入子带上的数据传输带宽),然后在判断出存在可接入子带的情况下,如果只存在
一个可接入子带,就只能选择该可接入子带进行接入,而如果存在一个以上的可接入子带,就选择其中具有最强子带检测信号的子带进行接入。
根据实际情况,传输子带检测信号的子带的数量可小于或等于所述系统带宽划分的子带数。而检测子带检测信号主要依据预先设置的子带检测信号的传输资源信息,所述传输资源信息例如为所述子带检测信号在每个子带的频带中间位置周期传输(即在每个传输间隔TTI的中间X个子载波上进行周期传输,或者每隔N个TTI在中间X个子载波上进行周期传输)。
进一步的,在完成所述第二子带的接入之后,所述方法还包括:
上报所述UE的数据传输带宽至所述小区,使得所述小区根据所述UE的数据传输带宽配置所述UE在部分或全部第二子带上进行数据传输。
或者,在所述选择具有最强的所述子带检测信号的第二子带进行接入之后,所述方法还包括:
上报所述UE的数据传输带宽和与未被接入的第二子带相关的信息至所述小区,使得所述小区根据所述UE的数据传输带宽和所述与未被接入的第二子带相关的信息配置所述UE在部分或全部第二子带上进行数据传输。
其中,所述与未被接入的第二子带相关的信息可为:
部分或全部检测到的所述未被接入的第二子带上的子带检测信号的强度;或者
所述未被接入的第二子带中具有最强子带检测信号的子带的子带信息;或者
按照子带检测信号强度由强到弱顺序排列的部分或全部所述未被接入的第二子带的子带信息。
需要说明的是,此处提到的子带信息用于确定对应的子带。
下面,通过具体实例对方式三的接入子带的方法进行说明。
实例1
参见图2和图3所示,假定一个小区中具有一个TRP,每个TRP独立发送初始同步信号和系统信息,整个系统带宽为100M,在一个TRP中将100M的系统带宽分为两个子带,不同子带上使用了不同的载波特性。对应的子带配置信息为系统带宽分为40M的子带1和60M的子带2。
UE准备进行子带接入时,首先获取到系统带宽分为40M的子带1和60M的子带2,对于仅支持40M传输带宽的UE,会选择在子带1的中间位置检测子带检测信号,在成功检测到子带1上的子带检测信号后,接入子带1以进行数据的接收和发送;而对于支持100M传输带宽的UE,会选择在子带1和子带2的中间位置检测子带检测信号,在成功检测到后,就可选择具有最强子带检测信号的子带1或子带2进行接入,并可通过上报UE的数据传输带宽借助小区的配置在整个系统带宽(即子带1和子带2)上进行数据传输。
实例2
参见图4和图5所示,假定一个小区中具有多个TRP,多个TRP之间可以是同步的或者不同步的,且发送相同的初始同步信号和系统信息,整个系统带宽为100M,共分为5个子带,每个子带的带宽为20M。相应的子带配置信息为系统带宽分为五个20M的子带。并且,TRP1同时在子带1和子带2上收发数据,TRP2同时在子带3~5上收发数据。
UE准备进行子带接入时,首先获取到系统带宽分为五个20M的子带,对于支持40M传输带宽的UE,分别检测子带1~5上的子带检测信号,如果UE检测到TRP1的子带1上的子带检测信号最强,且TRP2的子带4上的子带检测信号为第二强,那么,所述UE就可与TRP1进行同步,并接入所述TRP1的子带1,然后上报所述UE的数据传输带宽40M和TRP2的子带4上的子带检测信号为第二强至小区,使所述小区配置UE同时在TRP1的子带1和TRP2的子带4上进行数据传输。
本公开实施例中,所述获取小区中传输的子带配置信息具体包括:
获取所述小区中的初始同步信号;
根据所述初始同步信号完成与所述小区之间的同步;
在完成与所述小区之间的同步后,获取所述小区中传输的所述子带配置信息。
其中,所述初始同步信号包括第一同步信号和第二同步信号,例如为PSS和SSS,主要用于小区搜索。
而由于所述小区中可具有一个TRP或者多个TRP,所以,获取相应的子带配置信息的过程会稍有不同,详述如下。
具体的,当所述小区中具有一个TRP时,获取相应的子带配置信息的过程具体为:首先检测PSS和SSS,然后根据检测强度确定要接入的小区即TRP(具有最强的检测强度),并与确定的TRP进行初始同步,接着获取确定的TRP上的重要系统信息,根据所述重要系统信息即可确定整个系统带宽上的子带配置信息。而当所述小区中具有多个TRP时,获取相应的子带配置信息的过程具体为:首先检测PSS和SSS,并与相应的小区进行初始同步,然后获取所述小区中传输的重要系统信息,根据所述重要系统信息即可确定整个系统带宽上的子带配置信息。
参见图10所示,本公开实施例提供一种接入子带的方法,用于网络侧,其中,所述方法包括步骤201,详述如下。
步骤201:下发子带配置信息至用户设备UE,使得所述UE根据所述子带配置信息,选择系统带宽中的子带进行接入。
这样,本公开实施例的接入子带的方法,通过下发子带配置信息至UE,可使得所述UE根据所述子带配置信息,选择系统带宽中的子带进行接入,从而能够准确识别出系统带宽中的可以数据传输的子带并接入。
其中,所述子带配置信息为子带检测信号在子带或TRP上的传输资源信息;或者,所述子带配置信息为所述系统带宽中数据传输的子带划分信息。
本公开具体实施例中,在所述UE接入选择的子带后,所述方法还包括:
接收所述UE上报的所述UE的数据传输带宽;
根据所述UE的数据传输带宽,配置所述UE在部分或全部检测到子带检测信号的子带上进行数据传输。
参见图11所示,本公开实施例提供一种接入子带的装置,与图1所示的接入子带的方法相对应,其中,所述装置包括:
获取模块111,用于获取小区中传输的子带配置信息;
选择模块112,用于根据所述子带配置信息,选择系统带宽中的子带进行接入。
这样,本公开实施例的接入子带的装置,通过获取小区中传输的子带配置信息,并根据所述子带配置信息,选择系统带宽中的子带进行接入,能够准确识别出系统带宽中的可以数据传输的子带并接入。
本公开实施例中,所述子带配置信息可为子带检测信号在子带上的传输资源信息,所述选择模块包括:
第一检测单元,用于根据所述传输资源信息,检测相应子带上的子带检测信号;
第一获取单元,用于获取预选子带的系统信息,所述预选子带为成功检测到所述子带检测信号的子带,所述预选子带的系统信息中指示了所述预选子带上的数据传输带宽;
第一选择单元,用于根据用户设备UE的数据传输带宽和所述预选子带上的数据传输带宽,选择匹配的预选子带进行接入。
其中,所述第一选择单元包括:
第一选择子单元,用于在所述UE的数据传输带宽只大于或等于第一预选子带上的数据传输带宽时,选择所述第一预选子带进行接入,所述第一预选子带为所述预选子带中具有最小数据传输带宽的预选子带且所述第一预选子带的数量为一个;
第二选择子单元,用于在所述UE的数据传输带宽大于或等于所述预选子带中一个以上的预选子带上的数据传输带宽时,从所述预选子带中选择出所有的第二预选子带,所述UE的数据传输带宽大于或等于所述第二预选子带上的数据传输带宽;
第三选择子单元,用于从所述第二预选子带中选择出具有最强子带检测信号的第三预选子带进行接入。
进一步的,所述装置还包括:
第一上报模块,用于在接入所述第三预选子带之后,上报所述UE的数据传输带宽至所述小区,使得所述小区根据所述UE的数据传输带宽配置所述UE在部分或全部第二预选子带上进行数据传输。
进一步的,所述装置还包括:
第二上报模块,用于在接入所述第三预选子带之后,上报所述UE的数据传输带宽和与未被接入的第二预选子带相关的信息至所述小区,使得所述小区根据所述UE的数据传输带宽和所述与未被接入的第二预选子带相关的信息配置所述UE在部分或全部第二预选子带上进行数据传输,其中,所述
与未被接入的第二预选子带相关的信息为部分或全部检测到的所述未被接入的第二预选子带上的子带检测信号的强度、所述未被接入的第二预选子带中具有最强子带检测信号的子带的子带信息或者按照子带检测信号强度由强到弱顺序排列的部分或全部所述未被接入的第二预选子带的子带信息。
本公开实施例中,所述子带配置信息可为子带检测信号在传输接收点(TRP)上的传输资源信息,所述TRP传输一个子带检测信号,所述选择模块包括:
第二检测单元,用于根据所述传输资源信息,检测相应TRP的子带上的子带检测信号;
第二获取单元,用于获取所述TRP的系统信息,所述TRP的系统信息中指示了所述系统带宽划分的子带数以及每个子带上的数据传输带宽;
上报单元,用于上报UE的数据传输带宽至所述小区,使得所述小区根据所述UE的数据传输带宽配置所述UE在部分或全部子带上进行数据传输;
接收单元,用于接收所述小区的配置信息并根据所述配置信息进行子带的接入。
本公开实施例中,所述子带配置信息可为所述系统带宽中数据传输的子带划分信息,所述选择模块包括:
确定单元,用于根据所述子带划分信息,确定所述系统带宽划分的子带数以及每个子带上的数据传输带宽;
第三检测单元,用于在UE的数据传输带宽只大于或等于第一子带上的数据传输带宽时,检测所述第一子带上的子带检测信号,所述第一子带为所有子带中具有最小数据传输带宽的子带且所述第一子带的数量为一个;
接入单元,用于在成功检测到所述第一子带上的子带检测信号时,接入所述第一子带。
其中,所述选择模块还包括:
第二选择单元,用于在所述UE的数据传输带宽大于或等于所述子带中一个以上的子带上的数据传输带宽时,从所述系统带宽划分的所有子带中选择出所有的第二子带,所述UE的数据传输带宽大于或等于所述第二子带上的数据传输带宽;
第四检测单元,用于检测所述第二子带上的子带检测信号;
第三选择单元,用于选择具有最强的所述子带检测信号的第二子带进行接入。
进一步的,所述装置还包括:
第三上报模块,用于在所述选择具有最强的所述子带检测信号的第二子带进行接入之后,上报所述UE的数据传输带宽至所述小区,使得所述小区根据所述UE的数据传输带宽配置所述UE在部分或全部第二子带上进行数据传输。
进一步的,所述装置还包括:
第四上报模块,用于在所述选择具有最强的所述子带检测信号的第二子带进行接入之后,上报所述UE的数据传输带宽和与未被接入的第二子带相关的信息至所述小区,使得所述小区根据所述UE的数据传输带宽和所述与未被接入的第二子带相关的信息配置所述UE在部分或全部第二子带上进行数据传输,其中,所述与未被接入的第二子带相关的信息为部分或全部检测到的所述未被接入的第二子带上的子带检测信号的强度、所述未被接入的第二子带中具有最强子带检测信号的子带的子带信息或者按照子带检测信号强度由强到弱顺序排列的部分或全部所述未被接入的第二子带的子带信息。
本公开实施例中,所述获取模块包括:
第三获取单元,用于获取所述小区中的初始同步信号;
同步单元,用于根据所述初始同步信号完成与所述小区之间的同步;
第四获取单元,用于在完成与所述小区之间的同步后,获取所述小区中传输的所述子带配置信息。
具体的,所述小区中具有一个TRP或者多个TRP。
具体的,当所述小区中具有多个TRP时,不同的TRP之间是同步的或者非同步的。
具体的,所述TRP可使用系统带宽中的一个或者多个子带。
具体的,不同的TRP或者不同的子带上使用不同的载波特性。
具体的,所述子带配置信息可通过主要信息块或系统信息块来承载。
参见图12所示,本公开实施例提供一种接入子带的装置,与图10所示
的接入子带的方法相对应,其中,所述装置包括:
下发模块121,用于下发子带配置信息至用户设备UE,使得所述UE根据所述子带配置信息,选择系统带宽中的子带进行接入。
其中,所述子带配置信息为子带检测信号在子带或TRP上的传输资源信息;或者,所述子带配置信息为所述系统带宽中数据传输的子带划分信息。
进一步的,所述装置还包括:
接收模块,用于在所述UE接入选择的子带后,接收所述UE上报的所述UE的数据传输带宽;
配置模块,用于根据所述UE的数据传输带宽,配置所述UE在部分或全部检测到子带检测信号的子带上进行数据传输。
参见图13所述,本公开实施例提供一种用户设备UE,所述UE包括第一总线130、第一处理器131、第一收发机132、第一总线接口133、第一存储器134和用户接口135。
其中,第一处理器131,用于读取第一存储器134中的程序,执行下列过程:通过第一收发机132获取小区中传输的子带配置信息,并根据所述子带配置信息,选择系统带宽中的子带进行接入。
第一收发机132,用于在第一处理器131的控制下接收和发送数据。
在图13中,总线架构(用第一总线130来代表),第一总线130可以包括任意数量的互联的总线和桥,第一总线130将包括由通用第一处理器131代表的一个或多个处理器和第一存储器134代表的存储器的各种电路链接在一起。第一总线130还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。第一总线接口133在第一总线130和第一收发机132之间提供接口。第一收发机132可以是一个元件,也可以是多个元件,比如多个接收器和发送器,提供用于在传输介质上与各种其他装置通信的单元。例如:第一收发机132从其他设备接收外部数据。第一收发机132用于将第一处理器131处理后的数据发送给其他设备。取决于计算系统的性质,还可以提供用户接口135,例如小键盘、显示器、扬声器、麦克风、操纵杆。
第一处理器131负责管理第一总线130和通常的处理,如前述所述运行
通用操作系统。而第一存储器134可以被用于存储第一处理器131在执行操作时所使用的数据。
可选的,第一处理器131可以是CPU、ASIC、FPGA或CPLD。
参见图14所示,本公开实施例提供一种基站,所述基站包括第二总线140、第二收发机141、天线142、第二总线接口143、第二处理器144和第二存储器145。
其中,第二处理器144,用于读取第二存储器145中的程序,执行下列过程:通过第二收发机141下发子带配置信息至UE,使得所述UE根据所述子带配置信息,选择系统带宽中的子带进行接入。
第二收发机141,用于在第二处理器144的控制下接收和发送数据。
在图14中,总线架构(用第二总线140来代表),第二总线140可以包括任意数量的互联的总线和桥,第二总线140将包括由第二处理器144代表的一个或多个处理器和第二存储器145代表的存储器的各种电路链接在一起。第二总线140还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。第二总线接口143在第二总线140和第二收发机141之间提供接口。第二收发机141可以是一个元件,也可以是多个元件,比如多个接收器和发送器,提供用于在传输介质上与各种其他装置通信的单元。经第二处理器144处理的数据通过天线142在无线介质上进行传输,进一步,天线142还接收数据并将数据传送给第二处理器144。
第二处理器144负责管理第二总线140和通常的处理,还可以提供各种功能,包括定时,外围接口,电压调节、电源管理以及其他控制功能。而第二存储器145可以被用于存储第二处理器144在执行操作时所使用的数据。
可选的,第二处理器144可以是CPU、ASIC、FPGA或CPLD。
以上所述仅是本公开的可选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本公开原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也应视为本公开的保护范围。
Claims (42)
- 一种接入子带的方法,包括:获取小区中传输的子带配置信息;根据所述子带配置信息,选择系统带宽中的子带进行接入。
- 根据权利要求1所述的方法,其中,所述子带配置信息为子带检测信号在子带上的传输资源信息,所述根据所述子带配置信息,选择系统带宽中的子带进行接入的步骤包括:根据所述传输资源信息,检测相应子带上的子带检测信号;获取预选子带的系统信息,所述预选子带为成功检测到所述子带检测信号的子带,所述预选子带的系统信息中指示了所述预选子带上的数据传输带宽;根据用户设备(UE)的数据传输带宽和所述预选子带上的数据传输带宽,选择匹配的预选子带进行接入。
- 根据权利要求2所述的方法,其中,所述根据UE的数据传输带宽和所述预选子带上的数据传输带宽,选择匹配的预选子带进行接入的步骤包括:若所述UE的数据传输带宽只大于或等于第一预选子带上的数据传输带宽,选择所述第一预选子带进行接入,所述第一预选子带为所述预选子带中具有最小数据传输带宽的预选子带且所述第一预选子带的数量为一个;若所述UE的数据传输带宽大于或等于所述预选子带中一个以上的预选子带上的数据传输带宽,从所述预选子带中选择出所有的第二预选子带,所述UE的数据传输带宽大于或等于所述第二预选子带上的数据传输带宽;从所述第二预选子带中选择出具有最强子带检测信号的第三预选子带进行接入。
- 根据权利要求3所述的方法,其中,在从所述第二预选子带中选择出具有最强子带检测信号的第三预选子带进行接入之后,所述方法还包括:上报所述UE的数据传输带宽至所述小区,使得所述小区根据所述UE的数据传输带宽配置所述UE在部分或全部第二预选子带上进行数据传输。
- 根据权利要求3所述的方法,其中,在从所述第二预选子带中选择出 具有最强子带检测信号的第三预选子带进行接入之后,所述方法还包括:上报所述UE的数据传输带宽和与未被接入的第二预选子带相关的信息至所述小区,使得所述小区根据所述UE的数据传输带宽和所述与未被接入的第二预选子带相关的信息配置所述UE在部分或全部第二预选子带上进行数据传输,其中,所述与未被接入的第二预选子带相关的信息为部分或全部检测到的所述未被接入的第二预选子带上的子带检测信号的强度、所述未被接入的第二预选子带中具有最强子带检测信号的子带的子带信息,或者按照子带检测信号强度由强到弱顺序排列的部分或全部所述未被接入的第二预选子带的子带信息。
- 根据权利要求1所述的方法,其中,所述子带配置信息为子带检测信号在传输接收点(TRP)上的传输资源信息,所述TRP传输一个子带检测信号,所述根据所述子带配置信息,选择系统带宽中的子带进行接入的步骤包括:根据所述传输资源信息,检测相应TRP的子带上的子带检测信号;获取所述TRP的系统信息,所述TRP的系统信息中指示了所述系统带宽划分的子带数以及每个子带上的数据传输带宽;上报UE的数据传输带宽至所述小区,使得所述小区根据所述UE的数据传输带宽配置所述UE在部分或全部子带上进行数据传输;接收所述小区的配置信息并根据所述配置信息进行子带的接入。
- 根据权利要求1所述的方法,其中,所述子带配置信息为所述系统带宽中数据传输的子带划分信息,所述根据所述子带配置信息,选择系统带宽中的子带进行接入的步骤包括:根据所述子带划分信息,确定所述系统带宽划分的子带数以及每个子带上的数据传输带宽;若UE的数据传输带宽只大于或等于第一子带上的数据传输带宽,检测所述第一子带上的子带检测信号,所述第一子带为所有子带中具有最小数据传输带宽的子带且所述第一子带的数量为一个;若成功检测到所述第一子带上的子带检测信号,接入所述第一子带。
- 根据权利要求7所述的方法,其中,所述根据所述子带配置信息,选 择系统带宽中的子带进行接入的步骤还包括:若所述UE的数据传输带宽大于或等于所述子带中一个以上的子带上的数据传输带宽,从所述系统带宽划分的所有子带中选择出所有的第二子带,所述UE的数据传输带宽大于或等于所述第二子带上的数据传输带宽;检测所述第二子带上的子带检测信号;选择具有最强的所述子带检测信号的第二子带进行接入。
- 根据权利要求8所述的方法,其中,在所述选择具有最强的所述子带检测信号的第二子带进行接入之后,所述方法还包括:上报所述UE的数据传输带宽至所述小区,使得所述小区根据所述UE的数据传输带宽配置所述UE在部分或全部第二子带上进行数据传输。
- 根据权利要求8所述的方法,其中,在所述选择具有最强的所述子带检测信号的第二子带进行接入之后,所述方法还包括:上报所述UE的数据传输带宽和与未被接入的第二子带相关的信息至所述小区,使得所述小区根据所述UE的数据传输带宽和所述与未被接入的第二子带相关的信息配置所述UE在部分或全部第二子带上进行数据传输,其中,所述与未被接入的第二子带相关的信息为部分或全部检测到的所述未被接入的第二子带上的子带检测信号的强度、所述未被接入的第二子带中具有最强子带检测信号的子带的子带信息,或者按照子带检测信号强度由强到弱顺序排列的部分或全部所述未被接入的第二子带的子带信息。
- 根据权利要求1所述的方法,其中,所述获取小区中传输的子带配置信息的步骤包括:获取所述小区中的初始同步信号;根据所述初始同步信号完成与所述小区之间的同步;在完成与所述小区之间的同步后,获取所述小区中传输的所述子带配置信息。
- 根据权利要求1所述的方法,其中,所述小区中具有一个TRP或者多个TRP。
- 根据权利要求12所述的方法,其中,当所述小区中具有多个TRP时,不同的TRP之间是同步的或者非同步的。
- 根据权利要求12所述的方法,其中,所述TRP使用系统带宽中的一个或者多个子带。
- 根据权利要求14所述的方法,其中,不同的TRP或者不同的子带上使用不同的载波特性。
- 根据权利要求1所述的方法,其中,所述子带配置信息通过主要信息块或系统信息块来承载。
- 一种接入子带的方法,包括:下发子带配置信息至用户设备(UE),使得所述UE根据所述子带配置信息,选择系统带宽中的子带进行接入。
- 根据权利要求17所述的方法,其中,所述子带配置信息为子带检测信号在子带或TRP上的传输资源信息;或者,所述子带配置信息为所述系统带宽中数据传输的子带划分信息。
- 根据权利要求17所述的方法,其中,在所述UE接入选择的子带后,所述方法还包括:接收所述UE上报的所述UE的数据传输带宽;根据所述UE的数据传输带宽,配置所述UE在部分或全部检测到子带检测信号的子带上进行数据传输。
- 一种接入子带的装置,包括:获取模块,用于获取小区中传输的子带配置信息;选择模块,用于根据所述子带配置信息,选择系统带宽中的子带进行接入。
- 根据权利要求20所述的装置,其中,所述子带配置信息为子带检测信号在子带上的传输资源信息,所述选择模块包括:第一检测单元,用于根据所述传输资源信息,检测相应子带上的子带检测信号;第一获取单元,用于获取预选子带的系统信息,所述预选子带为成功检测到所述子带检测信号的子带,所述预选子带的系统信息中指示了所述预选子带上的数据传输带宽;第一选择单元,用于根据用户设备(UE)的数据传输带宽和所述预选子 带上的数据传输带宽,选择匹配的预选子带进行接入。
- 根据权利要求21所述的装置,其中,所述第一选择单元包括:第一选择子单元,用于在所述UE的数据传输带宽只大于或等于第一预选子带上的数据传输带宽时,选择所述第一预选子带进行接入,所述第一预选子带为所述预选子带中具有最小数据传输带宽的预选子带且所述第一预选子带的数量为一个;第二选择子单元,用于在所述UE的数据传输带宽大于或等于所述预选子带中一个以上的预选子带上的数据传输带宽时,从所述预选子带中选择出所有的第二预选子带,所述UE的数据传输带宽大于或等于所述第二预选子带上的数据传输带宽;第三选择子单元,用于从所述第二预选子带中选择出具有最强子带检测信号的第三预选子带进行接入。
- 根据权利要求22所述的装置,其中,所述装置还包括:第一上报模块,用于在接入所述第三预选子带之后,上报所述UE的数据传输带宽至所述小区,使得所述小区根据所述UE的数据传输带宽配置所述UE在部分或全部第二预选子带上进行数据传输。
- 根据权利要求22所述的装置,其中,所述装置还包括:第二上报模块,用于在接入所述第三预选子带之后,上报所述UE的数据传输带宽和与未被接入的第二预选子带相关的信息至所述小区,使得所述小区根据所述UE的数据传输带宽和所述与未被接入的第二预选子带相关的信息配置所述UE在部分或全部第二预选子带上进行数据传输,其中,所述与未被接入的第二预选子带相关的信息为部分或全部检测到的所述未被接入的第二预选子带上的子带检测信号的强度、所述未被接入的第二预选子带中具有最强子带检测信号的子带的子带信息或者按照子带检测信号强度由强到弱顺序排列的部分或全部所述未被接入的第二预选子带的子带信息。
- 根据权利要求20所述的装置,其中,所述子带配置信息为子带检测信号在传输接收点(TRP)上的传输资源信息,所述TRP传输一个子带检测信号,所述选择模块包括:第二检测单元,用于根据所述传输资源信息,检测相应TRP的子带上的 子带检测信号;第二获取单元,用于获取所述TRP的系统信息,所述TRP的系统信息中指示了所述系统带宽划分的子带数以及每个子带上的数据传输带宽;上报单元,用于上报UE的数据传输带宽至所述小区,使得所述小区根据所述UE的数据传输带宽配置所述UE在部分或全部子带上进行数据传输;接收单元,用于接收所述小区的配置信息并根据所述配置信息进行子带的接入。
- 根据权利要求20所述的装置,其中,所述子带配置信息为所述系统带宽中数据传输的子带划分信息,所述选择模块包括:确定单元,用于根据所述子带划分信息,确定所述系统带宽划分的子带数以及每个子带上的数据传输带宽;第三检测单元,用于在UE的数据传输带宽只大于或等于第一子带上的数据传输带宽时,检测所述第一子带上的子带检测信号,所述第一子带为所有子带中具有最小数据传输带宽的子带且所述第一子带的数量为一个;接入单元,用于在成功检测到所述第一子带上的子带检测信号时,接入所述第一子带。
- 根据权利要求26所述的装置,其中,所述选择模块还包括:第二选择单元,用于在所述UE的数据传输带宽大于或等于所述子带中一个以上的子带上的数据传输带宽时,从所述系统带宽划分的所有子带中选择出所有的第二子带,所述UE的数据传输带宽大于或等于所述第二子带上的数据传输带宽;第四检测单元,用于检测所述第二子带上的子带检测信号;第三选择单元,用于选择具有最强的所述子带检测信号的第二子带进行接入。
- 根据权利要求27所述的装置,其中,所述装置还包括:第三上报模块,用于在所述选择具有最强的所述子带检测信号的第二子带进行接入之后,上报所述UE的数据传输带宽至所述小区,使得所述小区根据所述UE的数据传输带宽配置所述UE在部分或全部第二子带上进行数据传输。
- 根据权利要求27所述的装置,其中,所述装置还包括:第四上报模块,用于在所述选择具有最强的所述子带检测信号的第二子带进行接入之后,上报所述UE的数据传输带宽和与未被接入的第二子带相关的信息至所述小区,使得所述小区根据所述UE的数据传输带宽和所述与未被接入的第二子带相关的信息配置所述UE在部分或全部第二子带上进行数据传输,其中,所述与未被接入的第二子带相关的信息为部分或全部检测到的所述未被接入的第二子带上的子带检测信号的强度、所述未被接入的第二子带中具有最强子带检测信号的子带的子带信息或者按照子带检测信号强度由强到弱顺序排列的部分或全部所述未被接入的第二子带的子带信息。
- 根据权利要求20所述的装置,其中,所述获取模块包括:第三获取单元,用于获取所述小区中的初始同步信号;同步单元,用于根据所述初始同步信号完成与所述小区之间的同步;第四获取单元,用于在完成与所述小区之间的同步后,获取所述小区中传输的所述子带配置信息。
- 根据权利要求20所述的装置,其中,所述小区中具有一个TRP或者多个TRP。
- 根据权利要求31所述的装置,其中,当所述小区中具有多个TRP时,不同的TRP之间是同步的或者非同步的。
- 根据权利要求31所述的装置,其中,所述TRP使用系统带宽中的一个或者多个子带。
- 根据权利要求33所述的装置,其中,不同的TRP或者不同的子带上使用不同的载波特性。
- 根据权利要求20所述的装置,其中,所述子带配置信息通过主要信息块或系统信息块来承载。
- 一种接入子带的装置,包括:下发模块,用于下发子带配置信息至用户设备(UE),使得所述UE根据所述子带配置信息,选择系统带宽中的子带进行接入。
- 根据权利要求36所述的装置,其中,所述子带配置信息为子带检测信号在子带或TRP上的传输资源信息;或者,所述子带配置信息为所述系统 带宽中数据传输的子带划分信息。
- 根据权利要求36所述的装置,还包括:接收模块,用于在所述UE接入选择的子带后,接收所述UE上报的所述UE的数据传输带宽;配置模块,用于根据所述UE的数据传输带宽,配置所述UE在部分或全部检测到子带检测信号的子带上进行数据传输。
- 一种接入子带的装置,包括:处理器;以及收发机,用于在所述处理器的控制下接收和发送数据,所述处理器配置为执行以下操作:获取小区中传输的子带配置信息;根据所述子带配置信息,选择系统带宽中的子带进行接入。
- 一种接入子带的装置,包括:处理器;以及收发机,用于在所述处理器的控制下接收和发送数据,所述处理器配置为执行以下操作:下发子带配置信息至用户设备(UE),使得所述UE根据所述子带配置信息,选择系统带宽中的子带进行接入。
- 一种非易失性计算机可读存储媒介,所述计算机可读存储媒介存储有能够被处理器执行的计算机可读指令,当所述计算机可读指令被处理器执行时,所述处理器执行以下操作:获取小区中传输的子带配置信息;根据所述子带配置信息,选择系统带宽中的子带进行接入。
- 一种非易失性计算机可读存储媒介,所述计算机可读存储媒介存储有能够被处理器执行的计算机可读指令,当所述计算机可读指令被处理器执行时,所述处理器执行以下操作:下发子带配置信息至用户设备(UE),使得所述UE根据所述子带配置信息,选择系统带宽中的子带进行接入。
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