WO2015096075A1 - 一种指示和确定使用频谱的方法及装置 - Google Patents
一种指示和确定使用频谱的方法及装置 Download PDFInfo
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- WO2015096075A1 WO2015096075A1 PCT/CN2013/090472 CN2013090472W WO2015096075A1 WO 2015096075 A1 WO2015096075 A1 WO 2015096075A1 CN 2013090472 W CN2013090472 W CN 2013090472W WO 2015096075 A1 WO2015096075 A1 WO 2015096075A1
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- 238000000034 method Methods 0.000 title claims abstract description 68
- 238000004891 communication Methods 0.000 claims abstract description 34
- 238000005259 measurement Methods 0.000 claims description 60
- 125000004122 cyclic group Chemical group 0.000 claims description 20
- 230000008859 change Effects 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000010295 mobile communication Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 16
- 238000004590 computer program Methods 0.000 description 7
- 238000012545 processing Methods 0.000 description 6
- 108010076504 Protein Sorting Signals Proteins 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 241000760358 Enodes Species 0.000 description 2
- 101100365003 Mus musculus Scel gene Proteins 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/002—Transmission of channel access control information
- H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
- H04W16/04—Traffic adaptive resource partitioning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/14—Spectrum sharing arrangements between different networks
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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
- H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/15—Setup of multiple wireless link connections
Definitions
- the present invention relates to the field of wireless communication technologies, and in particular, to a method and apparatus for indicating and determining a spectrum to be used. Background technique
- Unlicensed frequency is not constrained by wireless communication systems and operators. That is, there are multiple operators of multiple communication systems or different operators of the same communication system want to occupy the same spectrum. For example, in a geographical area, multiple operators deploy LTE communication nodes, and each operator does not consider other operators or other systems for network planning when using the same spectrum to transmit data. It is possible that different operators are in these.
- the same cell identity Cell-ID is used on the shared spectrum within the same geographic area.
- the signals transmitted in part of the physical layer channel in the LTE system include pre-defined sequence signals, which are only related to the corresponding Cell-ID.
- synchronization signals For example: synchronization signals, cell-specific reference signals (CRS, also known as common reference signals).
- CRS cell-specific reference signals
- the primary synchronization signal uses the Zadoff-Chu sequence
- the secondary synchronization signal uses the m sequence.
- a specific primary synchronization signal sequence and a secondary synchronization signal sequence are generated correspondingly according to the generation manner of the primary synchronization signal and the secondary synchronization signal.
- the generation of CRS sequences in LTE systems The resource mapping method is also only related to the Cell-ID of the cell. For a particular Cell-ID, a specific CRS signal sequence is generated and mapped to the same resource for transmission.
- the cell 1 of the cell plan of the operator 1 on the unlicensed spectrum and the part 2 of the cell 2 planned by the operator 2 on the unlicensed spectrum are the same. Since each operator does not consider the network planning of other operators or other systems when transmitting data using the same spectrum, it is possible that the cell 1 of the operator 1 on the unlicensed spectrum and the cell of the operator 2 on the unlicensed spectrum Cell2 uses the same Cell-ID.
- the user UE1 of the operator 1 may receive the physical signal sequence of the Cell 2 of the operator 2 when receiving and demodulating the physical signal sequence of the operator on the Cell2.
- the user cannot discern whether the received signal is from the cell 1 of the operator 1 on the unlicensed spectrum or the cell 2 of the operator 2 on the unlicensed spectrum.
- the actual situation is that when the signal sent by Cell2 of the operator 1 arrives at the UE, it will be seriously interfered by the signal transmitted by the Cell 2 of the operator 2.
- the measured CRS signal since the CRS signals sent by the two operators are identical, not only can the interference not be reflected, but the CRS can be combined and received by the UE, so that the measured CRS signal quality is high.
- the operator 1 After the measurement result is reported to the Cell 2 of the operator 1 , the operator 1 performs configuration, data scheduling, and the like on the measurement result of the UE. Since the configuration and data scheduling result is actually inconsistent with the communication quality of the UE in the Cell 2 of the operator 1, the invalid or erroneous scheduling result will be caused, causing confusion of the subsequent network to the user data scheduling.
- the systems deployed by different LTE system operators are on separate licensed spectrums, and there is no cell problem in which different operators plan the same Cell-ID on the shared spectrum in the same geographical area.
- the embodiment of the invention provides a method and a device for indicating and determining the spectrum to be used, so as to avoid invalid or wrong scheduling results caused by different operators planning the same Cell-ID in the shared spectrum of the same geographical area, causing network-to-user data. Scheduling problems.
- a method for indicating usage of a spectrum by a network side including:
- the secondary serving cell Scell Sending, by the secondary serving cell Scell, the second wireless network identifier that is the same as the first wireless network identifier to the UE, so that the UE determines whether the network can communicate with the network side on the Scell, and the carrier used by the Scell is on the shared spectrum.
- the carrier, the first wireless network identifier/second wireless network identifier uniquely identifies a wireless network operator.
- the method further includes:
- the UE Upon receiving the feedback information that is returned by the UE and including the signal measurement result on the Scell, the UE performs resource configuration and data scheduling according to the signal measurement result on the Scell.
- the second possible implementation manner is to use the first downlink shared channel to send the second radio network identifier to the UE on the Scell;
- the transport channel of the scheduling information corresponding to the first downlink shared channel is in control
- the first common search space of the control channel is a common search space of the Pcell or a common search space of the Scell;
- the second downlink shared channel is used, and the second radio network identifier is sent to the UE on the Scell; the resource corresponding to the second downlink shared channel is a preset resource corresponding to the Scell cell identifier; or
- the third downlink shared channel is used, and the second wireless network identifier and the predicted sequence for identifying the second wireless network identifier are sent to the UE on the Scell.
- a second aspect provides a method for a user equipment UE to determine to use a frequency spectrum, including: Receiving, by the network side, the first wireless network identifier sent by the primary serving cell Pcell, and searching for the second wireless network identifier sent by the network side on the secondary serving cell Scell, where the carrier used by the Pcell is a carrier on the unshared spectrum, The carrier used by the Scell is a carrier on the shared spectrum;
- the second wireless network identifier sent by the network side on the Scell, or the second wireless network identifier sent by the network side on the Scell is determined to be inconsistent with the first wireless network identifier sent by the network side on the Pcell, Communicate with the network side on the Scell.
- the method further includes: feeding back the signal measurement result on the Scell to the network side;
- the method further includes:
- the signal measurement result on the Scell is not fed back to the network side, or feedback information indicating that the signal measurement result on the Scell is invalid is fed back to the network side, or feedback information indicating that the Scell cell identifier is changed is fed back to the network side.
- the second possible implementation manner is to search, by using the first downlink shared channel, a second wireless network identifier that is sent by the network side on the Scell, and the scheduling information corresponding to the first downlink shared channel.
- the transmission channel is in the first common search space of the control channel, and the first common search space of the control channel is a common search space of the Pcell or a common search space of the Scell; or
- the second radio network identifier sent by the network side on the Scell is a preset resource corresponding to the Scell cell identifier
- the third aspect provides a method for determining a cell identifier on a spectrum by using a network side, including:
- the system time at the calibration is aligned with a time position in one of the time segments, and M time segments are established according to the cycle order of the stored M time segments.
- the relationship between the cycle order and the system time, M is greater than 1 Integer
- the method further includes:
- the stored M time segments, the cyclic sequence of the M time segments, and the correspondence between the M time segments and the Cell-ID are sent to the UE.
- the second possible implementation manner further includes:
- the time period in which the current system time is located and the time position t in the current system time in the time period are determined; the determined time position t and the cell corresponding to the current system time period are broadcast to the UE- ID; or
- the Cell-ID is sent to the UE.
- the method further includes:
- the time position t of the current system time in the time period is sent to the UE.
- a user equipment UE determines a cell identity cell-ID method on a spectrum, including:
- the system time during calibration is aligned with a time position in one of the stored M time periods, and M time periods are established according to the cycle order of the stored M time periods according to a preset cycle.
- M is an integer greater than one;
- the relationship between the current system time and the system time is determined according to the established M time segments, and the time period corresponding to the current system time is determined according to the storage.
- Corresponding relationship between the M time segments and the Cell-ID determining the Cell-ID corresponding to the time segment, and using the determined Cell-ID to communicate with the network side on the carrier of the shared spectrum.
- determining the time calibration specifically includes: receiving, by the network side, a Cell-ID and a time position that are sent when the Cell-ID is used to communicate with the UE on the carrier of the shared spectrum. Or receiving the Cell-ID and the time position t sent by the network side to arrive at the timing, or receiving the Cell-ID and the time position t sent by the network side according to the request of the UE, or receiving the network side to determine the connection with the UE.
- the time calibration is determined;
- Aligning the system time at the time of calibration with a time position in a time period of the stored M time periods specifically including:
- a network device including:
- a first sending unit configured to send, by the primary serving cell Pcell, a first wireless network identifier to the UE, where the used carrier of the Pcell is a carrier on a non-shared spectrum;
- a second sending unit configured to send a second wireless network identifier that is the same as the first wireless network identifier to the UE on the secondary serving cell Scell, so that the UE determines whether the network can communicate with the network side on the Scell, where the Scell is used.
- the carrier is a carrier on the shared spectrum, and the first wireless network identifier/second wireless network identifier uniquely identifies a wireless network operator.
- the stopping scheduling unit is configured to: after sending the first wireless network to the UE on the Pcell and sending the second wireless network identifier to the UE on the Scell, determining that the UE does not receive the return The feedback information of the signal measurement result on the Scell is included, or the feedback information indicating that the signal measurement result on the Scell is invalid is received by the UE, or the feedback information indicating that the Scell cell identifier is changed by the UE is received, and the UE is not used for resources. Configuration and data scheduling or Change the cell identifier of the Scell;
- a scheduling unit configured to: after sending the first radio network identifier to the UE on the Pcell and sending the second radio network identifier to the UE on the Scell, after receiving the feedback information that is returned by the UE and including the signal measurement result on the Scell, according to the Scell
- the signal measurement result on the UE performs resource configuration and data scheduling.
- the second sending unit is configured to: send, by using a first downlink shared channel, a second wireless network identifier to the UE on the Scell; the first downlink shared channel
- the transmission channel of the corresponding scheduling information is in the first common search space of the control channel, and the first common search space of the control channel is a common search space of the Pcell or a common search space of the Scell; or
- the second sending unit is configured to: send, by using the second downlink shared channel, the second radio network identifier to the UE on the Scell; the resource corresponding to the second downlink shared channel is a preset resource corresponding to the Scell cell identifier; or
- the second sending unit is configured to send, by using a third downlink shared channel, a second wireless network identifier and a predicted sequence for identifying the second wireless network identifier to the UE on the Scell.
- a user equipment UE that determines to use a spectrum, including:
- a search unit configured to receive a first wireless network identifier sent by the network side on the primary serving cell Pcell, and search for a second wireless network identifier sent by the network side on the secondary serving cell Scell, where the carrier used by the Pcell is a non-shared spectrum
- the carrier used by the Scell is a carrier on a shared spectrum
- a first determining unit configured to receive the second wireless network identifier sent by the network side on the Scell, and determine that the network side is consistent with the first wireless network identifier sent by the network side on the Pcell, and is determined to be on the Scell and the network side.
- the first possible implementation manner further includes:
- the first feedback unit is configured to: when the communication with the network side is enabled on the Scell, further comprising: feeding back the signal measurement result on the Scell to the network side;
- a second feedback unit configured to: when not communicating with the network side on the Scell, not to feed back the signal measurement result on the Scell to the network side, or feed back to the network side feedback information indicating that the signal measurement result on the Scell is invalid, or Feedback information indicating that the Scell cell identifier is changed is fed back to the network side.
- the searching unit is configured to search, by using the first downlink shared channel, a second wireless network identifier that is sent by the network side on the Scell;
- the transmission channel of the scheduling information corresponding to the shared channel is in the first common search space of the control channel, and the first common search space of the control channel is a common search space of the Pcell or a common search space of the Scell; or
- the searching unit is specifically configured to search, by using the second downlink shared channel, the second wireless network identifier that is sent by the network side on the Scell; the resource corresponding to the second downlink shared channel is a pre-corresponding to the Scell cell identifier.
- the searching unit is specifically configured to search, according to the stored predicted sequence, the second wireless network identifier sent by the network side on the Scell in the third downlink shared channel.
- a network side device including:
- a time calibration unit configured to determine, when performing the time calibration, aligning the system time at the calibration with a time position in one of the time periods according to the stored M time periods, and establishing the M according to the cyclic sequence of the stored M time periods
- the time period corresponds to the system time according to a preset cycle sequence, and M is an integer greater than one;
- the communication unit is configured to determine, when the cell-shared carrier is used to communicate with the user equipment UE on the carrier of the shared spectrum, according to the established M time segments, according to a preset cyclic sequence and the system time, determine the current system time. Corresponding time period, according to the correspondence between the stored M time segments and the Cell-ID, determining the Cell-ID corresponding to the time segment, and communicating with the UE by using the determined Cell-ID on the carrier of the shared spectrum, where Different wireless network operators have different Cell-IDs for the same time period.
- the first possible implementation manner further includes:
- the sending unit is configured to send the stored M time segments, the cyclic sequence of the M time segments, and the correspondence between the M time segments and the Cell-ID to the UE.
- the second possible implementation manner further includes:
- a first notification unit configured to determine a time period during which the current system time is located and a time position t of the current system time in the time period, and broadcast the determined time position t and current system time to the UE The Cell-ID corresponding to the time period;
- a second notification unit configured to determine a time period during which the current system time is located and a time position t of the current system time in the time period, and the determined time position t and current system time The Cell-ID corresponding to the time period is sent to the UE; or
- a third notification unit configured to determine, when the UE needs to establish a connection, determine a time period T in which the current system time is located and a time position t in which the current system time is in the time period, and the determined time position t and the current system The Cell-ID corresponding to the time period in which the time is located is sent to the UE.
- the communication unit when the communication unit uses the Cell-ID corresponding to the time period to communicate with the UE on the carrier of the shared spectrum, the communication unit is further configured to:
- the time position t of the current system time in the time period is sent to the UE. .
- the eighth aspect provides a user equipment UE, including:
- a time calibration unit configured to determine, when performing the time calibration, aligning the system time during calibration with a time position of one of the stored M time segments, and establishing M times according to the cyclic sequence of the stored M time segments
- the segment corresponds to the system time according to a preset cycle order, and M is an integer greater than one;
- the communication unit is configured to determine, when the Cell-ID is used to communicate with the network side on the carrier of the shared spectrum, according to the established M time segments, according to a preset cyclic sequence and the system time, determining a current system time corresponding to the current system time.
- the time segment is determined according to the correspondence between the stored M time segments and the Cell-ID, and the Cell-ID corresponding to the time segment is determined, and the determined Cell-ID is used to communicate with the network side on the carrier of the shared spectrum.
- the time calibration unit receives the network side Determining the Cell-ID and the time position t sent when the Cell-ID is used to communicate with the UE on the carrier of the shared spectrum, or receiving the Cell-ID and the time position t sent by the network side at the arrival timing, or receiving the network side according to the network side.
- the Cell-ID and the time position t of the request sent by the UE or when receiving the Cell-ID and the time position t sent by the network side when determining the connection with the UE, determining to perform time calibration; according to the stored M time periods and the Cell-ID Corresponding relationship, determining a time period corresponding to the received Cell-ID; aligning the system time at the time of calibration with the time position t in the determined time period.
- the network side of the present invention sends the same radio network identifier on the Pcell and the Scell, so that the UE can determine whether it can be used on the Scell with the network side.
- Shared carrier communication based on the reception status of the two wireless network identifiers, the UE can determine whether different operators on the shared spectrum use the same Cell-ID and feed back to the network measurement device, thereby avoiding different operations on the shared spectrum in the same geographical area.
- the cell planning the same Cell-ID causes invalid or incorrect scheduling results, causing confusion of the network to user data scheduling.
- FIG. 1 is a schematic diagram of a cell 2 in which a cell 1 planned by an operator 1 on an unlicensed spectrum and a cell 2 planned by an operator 2 on an unlicensed spectrum are in the same geographical area;
- FIG. 2 is a flowchart of a method for indicating use of a spectrum on a network side according to an embodiment of the present invention
- FIG. 3 is a flowchart of a method for determining, by a user equipment, a spectrum used according to an embodiment of the present invention
- FIG. 4 is a schematic diagram of a network side transmitting the same PLMN information in a primary serving cell and a secondary serving cell according to an embodiment of the present invention
- FIG. 5 is a schematic diagram of a common search space in which a first common search space of a control channel is a Pcell according to an embodiment of the present invention
- Figure 6 is a schematic diagram of another cell in which another operator has placed the same Cell-ID in a similar geographical area
- FIG. 7 is a schematic diagram of a common search space in which a first common search space of a control channel is an Scell according to an embodiment of the present invention
- FIG. 8 is a schematic diagram of a specific resource preset by a second downlink shared channel according to an embodiment of the present invention
- FIG. 9 is a flowchart of a method for determining a cell identity on a spectrum on a network side according to an embodiment of the present invention.
- FIG. 10 is a flowchart of a method for determining a cell identifier on a spectrum by a user equipment UE according to an embodiment of the present invention
- FIG. 11 is a schematic diagram of a Cell-ID scheme for a network side device planning a time-varying on a shared spectrum according to an embodiment of the present invention
- FIG. 12 is a structural diagram of a first network side device according to an embodiment of the present invention.
- FIG. 13 is a structural diagram of a first UE according to an embodiment of the present invention.
- FIG. 14 is a structural diagram of a second network side device according to an embodiment of the present invention.
- FIG. 15 is a structural diagram of a second UE according to an embodiment of the present invention. Detailed ways
- the present invention solves the problem of Cell-ID planning when different operators deploy the LTE system network using the shared spectrum. It solves the problem that the operator does not consider other operators' network planning when using the sharing, and may cause invalid or wrong scheduling results caused by different operators planning the same Cell-ID in the shared spectrum of the same geographical area. The confusion of the network to user data scheduling.
- the first embodiment of the present invention provides a method for indicating the use of the frequency spectrum. As shown in FIG. 2, the method includes:
- Step 201 Send a first radio network identifier to the UE on the primary cell Pcell (Primary cell), where the carrier used by the Pcell is a carrier on the unshared spectrum;
- Step 202 Send a second wireless network identifier that is the same as the first wireless network identifier to the UE on the secondary cell (Scell), so that the UE determines whether it can be on the Scell according to the receiving status of the two wireless network identifiers.
- the network side device communicates, the carrier used by the Scell is a carrier on the shared spectrum, and the first wireless network identifier/second wireless network identifier can uniquely identify one wireless network operator within the same geographical area.
- the Pcell uses the carrier on the non-shared spectrum, so the UE can receive the first wireless network identifier sent by the network side on the Pcell, the Scell uses the carrier on the shared spectrum, and the different cells plan the same Cell in the shared spectrum of the same geographical area.
- the UE may not receive or receive the same wireless network identifier as that on the Pcell. Therefore, the UE needs to search for the second wireless network identifier sent by the network side on the Scell, according to the second wireless network identifier on the shared spectrum. In the case of receiving, it can be determined whether the network side device can communicate with the UE on the shared spectrum resource.
- the embodiment of the present invention does not limit the execution order of step 201 and step 202, that is, two wireless network identifiers may be sent simultaneously or separately.
- the network side device is a base station, and the base station may be a base transceiver station (BTS), a Node B (Node B), an evolved Node B (eNode B or eNB), a home base station (Home Node B or HNB), and an evolved home base station. (Home eNode B or HeNB), macro base station, and the like.
- BTS base transceiver station
- Node B Node B
- eNode B or eNB evolved Node B
- Home Node B or HNB home base station
- HNB home base station
- macro base station and the like.
- the first/second wireless network identifier for uniquely identifying the wireless network operator may be, but is not limited to, identifying part or all of the content of the PLMN ID for the Public Land Mobile Network (public land mobile network) (this embodiment is called PLMN information).
- PLMN MCC + MNC, where MCC (Mobile Country Code) is three digits; MNC (Mobile Network Code) is the mobile network number assigned by the government, which is 2 ⁇ 3 digits.
- the PLMN information is a part of a PLMN that can distinguish between different operators within the same geographical area.
- the transmitted PLMN information may be MNC information in the PLMN.
- the network side is configured to send, by using the broadcast system information block SIB-1, the first wireless network identifier to the UE on the Pcell, and send the second wireless network identifier to the UE on the Scell.
- the network side sends the first wireless network identifier to the UE on the Pcell and the second wireless network identifier to the UE on the Scell, perform any of the following steps:
- the network side device avoids the same Cell-ID of different operators in the shared spectrum of the same geographical area by replacing the Cell-ID of the carrier on the shared spectrum or not performing resource configuration and data scheduling on the UE according to the information feedback of the UE.
- the cell causes invalid or erroneous scheduling results, causing confusion of the network to user data scheduling.
- the specific mode of the network side transmitting the wireless network identifier on the Scell may be as follows: In the first mode, the first downlink shared channel is used, and the second wireless network identifier is sent to the UE on the Scell, where the first downlink shared channel is corresponding.
- the transmission channel of the scheduling information is in the first common search space of the control channel, and the first common search space of the control channel is the common search space of the Pcell or the common search space of the Scell.
- the second downlink shared channel is used, and the second radio network identifier is sent to the UE on the Scell, and the resource corresponding to the second downlink shared channel is a preset resource corresponding to the Scell cell identifier.
- Manner 3 Send, on the Scell, a second wireless network identifier to the UE and a predicted sequence for identifying the second wireless network identifier.
- the pre-known sequence may be set to have a predetermined positional relationship with the wireless network identifier, such as transmitting the second wireless network identifier before the predicted sequence or after the predicted sequence, so that the UE can detect the received predicted sequence according to the stored predicted sequence, and pass the predetermined location.
- the relationship identifies the second network identifier, and may perform a predetermined operation on the predicted sequence and the second wireless network identifier, for example, performing an exclusive OR operation, so that the UE side performs inverse operation on the received signal by using the first wireless network identifier on the Pcell. And determining whether the result is stored in a predictive correlation, and further determining whether the wireless network identifier sent on the Scell is correctly received.
- the second wireless network identifier is used to scramble the predicted sequence, in the third Transmitting a second wireless network identifier and a predicted sequence in the downlink shared channel.
- the predicted sequence is any one or any of a plurality of sequences: a primary synchronization signal PSS sequence, a secondary synchronization signal SSS sequence, or a cell-specific pilot signal CRS sequence.
- the second embodiment of the present invention further provides a method for determining the spectrum to be used. As shown in FIG. 3, the method includes:
- Step 301 Receive a first radio network identifier sent by the network side on the Pcell, and search for a second radio network identifier sent by the network side on the Scell, where the carrier used by the Pcell is a carrier on a non-shared spectrum, and the Scell is used by the Scell.
- the carrier is a carrier on the shared spectrum;
- Step 302 Receive a second wireless network identifier sent by the network side Scell, and determine that the network identifier is consistent with the first wireless network identifier sent by the network side on the Pcell, and determine that the network can communicate with the network side on the Scell, and the network is not received.
- the Scell communicates with the network side.
- the UE can identify whether different operators on the shared spectrum use the same Cell-ID through the reception of the two wireless network identifiers, and avoids invalidation of cells of different operators planning the same Cell-ID in the shared spectrum of the same geographical area.
- the wrong scheduling result causes confusion of the network to user data scheduling.
- the wireless network is identified as part or all of the content of the public land mobile network PLMN. Further optionally, the wireless network identifier is a mobile network number MNC in the PLMN.
- the UE receives the first wireless network identifier sent by the network side on the Pcell by using the broadcast system information block SIB-1, and searches for the second wireless network identifier sent by the network side on the Scell.
- the following processing is performed:
- the signal measurement result on the Scell is not fed back to the network side, or the feedback information indicating that the signal measurement result on the Scell is invalid is fed back to the network side, or the indication change is fed back to the network side.
- Feedback information of the Scell cell identifier If the UE recognizes that the shared spectrum resource cannot communicate with the UE, that is, the other existing network devices on the shared spectrum resource may use the same Cell-ID deployment network, and the UE does not feed back the UE on the shared spectrum to the network side device. As a result of the measurement, the measurement result on the shared spectrum that is not received by the UE on the network side may not allocate resources on the shared spectrum to the UE.
- the UE feeds back to the network side device the indication information that the measurement result on the shared spectrum is invalid or the indication information that the Scell needs to replace the Cell-ID, and the network side device can replace the Cell-ID of the carrier on the shared spectrum according to the indication information, thereby avoiding In the shared spectrum of the same geographical area, different operators planning the same Cell-ID cell cause invalid or erroneous scheduling results, causing confusion of the network to user data scheduling.
- the specific method of how the UE searches for the wireless network identifier sent by the network side on the Scell can be any of the following methods:
- the first downlink shared channel is used to search for the second wireless network identifier sent by the network side on the Scell; the transport channel of the scheduling information corresponding to the first downlink shared channel is in the first common search space of the control channel, and the control channel
- the first common search space is a public search space of Pcell or a common search space of Scell.
- the second downlink shared channel is used to search for the second wireless network identifier sent by the network side on the Scell; the resource corresponding to the second downlink shared channel is the preset resource corresponding to the Scell cell identifier.
- Manner 3 Searching, in the third downlink shared channel, the second wireless network identifier sent by the network side on the Scell according to the stored prediction sequence.
- the second wireless network identifier sent by the network side on the Pcell is used to descramble the received signal; and the descrambled signal is determined to be related to the predicted sequence stored on the UE side, and then the received network side is sent on the Scell.
- the wireless network identifier is determined to be consistent with the wireless network identifier sent by the network side on the Pcell.
- the predicted sequence is any one or any of a plurality of sequences: a primary synchronization signal PSS sequence, a secondary synchronization signal SSS sequence, or a cell-specific pilot signal CRS sequence.
- Embodiment 3 of the present invention is implemented by combining a network side and a UE side, and provides a method for using a spectrum indication method and a method for determining a spectrum used by a UE.
- the Pcell uses the carrier on the unshared spectrum
- the Scell uses the carrier on the shared spectrum.
- the network side sends the first wireless network identifier on the Pcell, and the second wireless network identifier is sent on the Scell, and the first wireless network identifier is used.
- the second wireless network is the same PLMN.
- the UE receives the PLMN sent by the network side on the Pcell, and searches for the PLMN sent by the network side on the Scell, receives the PLMN sent by the network side on the Scell, and determines that it is consistent with the PLMN sent by the network side on the Pcell. Communicate with the network side on the Scell; if the PLMN sent by the network side on the Scell is not received, or the PLMN sent by the network side on the Scell is received and determined to be inconsistent with the PLMN sent by the network side on the Pcell, it is determined that it cannot be on the Scell. Communicate with the network side.
- the UE determines that the signal measurement result on the Scell is fed back to the network side when the network side communicates with the Scell, and the network side receives the feedback information that is returned by the UE, including the signal measurement result on the Scell, according to the information on the Scell.
- the signal measurement results perform resource configuration and data scheduling for the UE.
- the UE determines that the network side cannot communicate with the network side on the Scell, it does not feed back the signal measurement result on the Scell to the network side, or feeds back to the network side feedback information indicating that the signal measurement result on the Scell is invalid, or feeds back the indication change to the network side.
- Feedback information of the Scell cell identifier The network side determines that the feedback information of the signal measurement result on the Scell returned by the UE is not received, or determines that the feedback information returned by the UE indicating that the signal measurement result on the Scell is invalid is received, or the feedback returned by the UE is received to change the Scell cell identifier.
- the UE is not configured for resource configuration and data, or the cell identifier of the Scell is changed.
- the network side uses the first downlink shared channel, and sends a PLMN to the UE on the Scell, and the UE searches for the PLMN sent by the network side on the Scell through the first downlink shared channel;
- the transmission channel of the scheduling information corresponding to the first downlink shared channel is in the common search space of the control channel, and the first common search space of the control channel is a common search space of the Pcell or a common search space of the Scell.
- the control channel of the Pcell sends the scheduling information of the first downlink shared channel on the Scell to the UE, and does not need to increase the number of blind detections of the UE on the Scell and does not require the Scell to allocate a common search space.
- the scheduling information of the first downlink shared channel on the Scell is sent to the UE through the control channel of the Scell.
- the UE may not detect the PLMN information when receiving and demodulating the PLMN information on the Scell according to the scheduling information of the first downlink shared channel received on the control channel of the Pcell/Scell.
- the reason why the PLMN information is not detected may be the scenario 1 shown in FIG. 6, that is, another cell in which the same Cell-ID is deployed by another operator in a similar geographical area, and UE1 is originally an operator.
- the UE of 1 moves to the range of cell 2 of the operator 2.
- the UE detects the first downlink shared channel on the Cell2/Operator1 by receiving the scheduling information of the first downlink shared channel sent by the network side on the control channel of the Pcell/Scell, but the UE is far away from the Cell2/Operator1 but close to the Cell2/ Operator2. At this time, the UE may not detect the first downlink shared channel on Cell2/Operator 1, and may not detect the PLMN information on the Scell.
- the reason why the PLMN information is not detected may also be the scenario 2 shown in FIG. 1 , that is, another cell in which the same cell is deployed by the same operator in the same geographical area, and UE1 is originally
- the UE of the carrier 1 detects the first downlink shared channel on the Cell 2/Operator 1 by receiving the scheduling information of the first downlink shared channel sent by the network side on the control channel of the Pcell, but the Cell 2/Operator 1 on the Cell 2/Operator 1
- the first downlink shared channel is interfered by the Cell 2/Operator 2, and the UE may not detect the first downlink shared channel on the Cell 2/Operator 1 and may not detect the PLMN information on the Scell.
- the UE detects the first downlink shared channel on the Cell2/Operator1 by receiving the scheduling information of the first downlink shared channel that is sent by the network side on the control channel of the Scell, and the first downlink shared channel on the Cell2/Operator1 And the channel of the scheduling information corresponding to the first downlink shared channel is interfered by the Cell2/Operator2, and the UE may not detect the scheduling information of the first downlink shared channel on the Cell2/Operator1 and the first downlink sharing.
- the information in the channel, that is, the PLMN information on the Scell is not detected.
- the network side adopts a second downlink shared channel, and sends a PLMN to the UE on the Scell; the UE passes the second downlink.
- a shared channel is used to search for a PLMN sent by the network side on the Scel.
- the resource corresponding to the second downlink shared channel is a preset resource corresponding to the See 11 cell identifier. As shown in Figure 8.
- the UE When the UE receives and demodulates the PLMN information on the Scell on the preset resource, it may detect that the PLMN information on the Scell is different from the PLMN information on the Pcell.
- the reason for detecting the PLMN information on the Scell and the PLMN information on the Pcell may be the same as the scenario 1 shown in FIG. 6. Since the UE is closer to the Cell2/Operator2, the preset specific resources are the same because the second downlink shared channel is sent. The UE detects the second downlink shared channel of the Cell2/Operator2 on the specific resource, and detects the PLMN information sent on the Cell2/Operator2 and the PLMN information received by the UE1 on the Pcell.
- the UE may not detect the PLMN information on the Scell.
- the reason why the PLMN information is not detected may also be the scenario 2 shown in FIG. 1.
- the second downlink shared channel on the Cell2/Operator1 is interfered by the Cell2/Operator2, and the UE may not detect the Cell2/Operator 1 at this time.
- the second downlink shared channel on the uplink does not detect the PLMN information on the Scell.
- the network side adopts a third downlink shared channel, and sends a PLMN to the UE on the Scell, a third downlink shared channel of the UE, searches for a PLMN sent by the network side on the Scell, and transmits a predetermined predicted sequence, such as a PSS, in the third downlink shared channel.
- a predetermined predicted sequence such as a PSS, in the third downlink shared channel.
- SSS or CRS sequence, etc.
- the network side scrambles the pre-known sequence with the PLMN information, and transmits the PLMN information and the predicted sequence in the third downlink shared channel.
- the UE uses the PLMN sent by the network side on the Pcell to descramble the received signal. After determining that the descrambled signal is related to the predicted sequence stored by the UE, the UE determines to receive the PLMN sent by the network side on the Scell, and determines the network side. PLMN sent on the Pcell.
- the UE may descramble the received signal according to the PLMN information received on the Pcell, and then compare with the CRS sequence information transmitted in the predicted third downlink shared channel, if the descrambled signal and the UE are stored.
- the CRS sequence information is related, and it is determined that the PLMN information transmitted by the network side in the third downlink shared channel of the Scell is the same as the PLMN information transmitted by the Pcell. Otherwise, if the descrambled signal is not related to the CRS sequence information stored by the UE, it is determined that the PLMN information transmitted by the network side in the third downlink shared channel of the Scell is different from the PLMN information transmitted by the Pcell.
- a method for determining a cell identity on a spectrum is provided, as shown in FIG.
- Step 901 Determine to perform time calibration, and align the system time at the calibration with a time position in one of the time segments according to the stored M time segments, and establish M time segments according to the cyclic sequence of the stored M time segments.
- M is an integer greater than 1.
- Step 902 Determine, when the Cell-ID is used to communicate with the user equipment UE on the carrier of the shared spectrum, determine the time corresponding to the current system time according to the established M time period according to a preset cyclic sequence and the system time. a segment, a corresponding relationship between the M time segments and the Cell-ID, determining a Cell-ID corresponding to the time segment, and communicating with the UE by using the determined Cell-ID on the carrier of the shared spectrum, where, for different wireless The network operator has different Cell-IDs for the same time period.
- a plurality of time periods are pre-defined and stored, and after a certain time of the system time is aligned with a certain time point in the time period, the M time periods are preset according to the system time update.
- the order corresponds to the system time.
- the network side sends the stored M time period, the M cycle time sequence, and the M time period to the UE, so that the information held by the network side and the UE is consistent.
- the network side can agree with the UE side to align the system time and time period, or only M time and its cycle sequence.
- the network can notify by any of the following methods. How does the UE implement the alignment, so that the UE determines which time period and the location in the time period corresponding to the system time at this time, so that it is possible to predict when to switch to the next time segment and the corresponding Cell-ID of each time segment, that is, I know which Cell-ID is used when the network side uses it.
- the network side determines the time period in which the current system time is located and the time position of the current system time in the time period;
- the Cell-ID corresponding to the determined time position and the time period in which the current system time is located is broadcast to the UE. Way two
- the UE When the UE initially accesses or performs a cell handover, and determines that a connection needs to be established with the UE, determining a time period in which the current system time is located and a time position in the current system time in the time period;
- the method further includes: sending the current system time to the UE in a time position in the time period.
- the time alignment can be implemented on the UE side.
- the Cell-IDs corresponding to the same time period are different, so as to avoid different operators planning the same Cell-ID in the shared spectrum of the same geographical area.
- the area causes invalid or incorrect scheduling results, causing confusion in the network to user data scheduling.
- the fifth embodiment of the present invention further provides a method for determining a cell identifier on a spectrum, as shown in FIG. 10, including:
- Step 1001 Determine to perform time calibration, align the system time during calibration with a time position in one of the stored M time segments, and establish M time segments according to the cyclic sequence of the stored M time segments.
- the relationship between the cycle order and the system time is set, and M is an integer greater than one;
- Step 1002 Determine, when using the Cell-ID to communicate with the network side on the carrier of the shared spectrum, determine the time period corresponding to the current system time according to the established M time period according to a preset cyclic sequence and the system time. And determining, according to the correspondence between the stored M time segments and the Cell-ID, the Cell-ID corresponding to the time segment, and using the determined Cell-ID to communicate with the network side on the carrier of the shared spectrum.
- the network side device uses the time-varying Cell-ID on the shared spectrum on the shared spectrum, and the user equipment determines the Cell-ID currently used by the network side device according to the time-varying rule of the Cell-ID. Because the time-varying Cell-ID is adopted, the method used in the embodiment of the present invention uses different Cell-IDs of multiple carrier network devices sharing spectrum resources as much as possible, thereby avoiding different operators on the shared spectrum in the same geographical area. A cell planning the same Cell-ID causes an invalid or erroneous scheduling result, causing confusion of the network to user data scheduling.
- the UE may align the system time with the corresponding time period according to a manner agreed with the network side. You can also implement time alignment according to the notification on the network side. You can use either of the following methods:
- the receiving network determines that the Cell-ID and the time position t sent when the Cell-ID is used to communicate with the UE on the carrier of the shared spectrum, and determines the time calibration; according to the correspondence between the stored M time segments and the Cell-ID, Determining a time period corresponding to the received Cell-ID; aligning the system time at the time of calibration with the time position t in the determined time period.
- the network side device plans to adopt a time-varying Cell-ID on the shared spectrum, as shown in FIG. 11, for example, using Cell-ID 1 during the t r t 2 , and using the Cell-ID during t 2 -t 3 2, ...t 3 -t 4 use Cell-ID 3, ....
- the time of t n -t n+1 can be divided into equal M time periods.
- the order rule of Cell-ID 1 , Cell-ID 2 , Cell-ID 3 , and the length of time each Cell-ID is used can be agreed by the network side device and the user equipment. If Cell-ID 1 is used at this time, the network side device and the user equipment use Cell-ID2 at the next moment according to a predetermined rule.
- the order rule of Cell-ID 1 , Cell-ID 2, and Cell-ID 3 is related to the PLMN information of the operator to which the network side device belongs (and the embodiment, which refers to some or all of the PLMNs).
- the Cel l-ID corresponding to the same time period is different.
- the 24-hour time of day is equally divided into M time periods.
- Each operator can determine the Cell-ID used in each time period based on its own PLMN information. For example, the change pattern predefined by Cell-ID is shown below.
- the operator whose PLMN information is 1 uses the change pattern of the first line Cell-ID in the predefined change mode of the Cell-ID, that is, the Cell-ID 1 is used in the first time period of the M time periods, Cell-ID 2 is used in two time periods, Cell-ID M is used in the Mth time period; the operator with PLMN information 2 is pre-defined using the second line Cell-ID in the predefined change mode of Cell-ID.
- Cell_ID 1 is used in the Mth time period
- Cell_ID_pattern is a predefined CelUD transformation rule on the shared spectrum
- the Cell_ID is deployed and planned according to the rules of the Cell_ID on the shared spectrum.
- the design principle of Cell_ID_pattern is to avoid having the same Cell-ID within a uniform time period, and the present invention does not limit the specific Cell_ID_pattern.
- the present invention avoids planning for a cell with the same Cell-ID by different operators on the shared spectrum of the same geographical area by using a predefined cell identity planning rule or a user equipment secondary cell identity plan.
- the user equipment identifies that different operators on the shared spectrum use the same Cell-ID and feed back to the network measurement device, which avoids invalid or incorrect scheduling results caused by different operators planning the same Cell-ID cell in the shared spectrum of the same geographical area. Causes confusion of network scheduling of user data.
- the invention can be applied to shared spectrum in other licensed spectrums, unless used on the licensed spectrum.
- a network side device and a user equipment UE are further provided in the embodiment of the present invention. Since the principle of solving the problem is similar to the method provided by the foregoing embodiment, the implementation of the device may refer to the method. The implementation, the repetition will not be repeated.
- a sixth embodiment of the present invention provides a network device, as shown in FIG. 12, including:
- the first sending unit 1201 is configured to send, by the primary serving cell Pcell, a first wireless network identifier to the UE, where the used carrier of the Pcell is a carrier on a non-shared spectrum;
- the second sending unit 1202 is configured to send, by the UE, a second wireless network identifier that is the same as the first wireless network identifier to the UE, to enable the UE to determine whether the network can communicate with the network side on the Scell.
- the carrier used is a carrier on the shared spectrum, and the first wireless network identifier/second wireless network identifier uniquely identifies one wireless network operator.
- the method further includes: stopping the scheduling unit, configured to: after sending the first wireless network to the UE on the Pcell and sending the second wireless network identifier to the UE on the Scell, determining that the packet returned by the UE is not received.
- the feedback information of the signal measurement result on the Scell is determined, or the feedback information indicating that the signal measurement result on the Scell is invalid is received by the UE, or the feedback information indicating that the Scell cell identifier is changed by the UE is received, and the UE is not used for resources.
- the method further includes: a scheduling unit, configured to send the first wireless network identifier to the UE on the Pcell and send the second wireless network identifier to the UE on the Scell, and receive feedback information including the signal measurement result on the Scell returned by the UE. And performing resource configuration and data scheduling on the UE according to the signal measurement result on the Scell.
- a scheduling unit configured to send the first wireless network identifier to the UE on the Pcell and send the second wireless network identifier to the UE on the Scell, and receive feedback information including the signal measurement result on the Scell returned by the UE. And performing resource configuration and data scheduling on the UE according to the signal measurement result on the Scell.
- the second sending unit specifically uses a first downlink shared channel, and sends a second wireless network identifier to the UE on the Scell; the transport channel of the scheduling information corresponding to the first downlink shared channel is in the control channel.
- the first common search space of the control channel is a common search space of a Pcell or a common search space of an Scell.
- the second sending unit is configured to: send, by using the second downlink shared channel, the second radio network identifier to the UE on the Scell; the resource corresponding to the second downlink shared channel is a pre-corresponding to the Scell cell identifier. Set resources.
- the second sending unit is configured to send, by using a third downlink shared channel, a second wireless network identifier and a predicted sequence for identifying the second wireless network identifier to the UE on the Scell.
- the second sending unit is configured to perform the scrambling of the predicted sequence by using the second wireless network identifier, and send the second wireless network identifier and the predicted sequence to the UE in the third downlink shared channel.
- the predicted sequence used by the second sending unit is any one or any of the following sequences:
- Primary synchronization signal PSS sequence Secondary synchronization signal SSS sequence, or cell-specific pilot signal CRS sequence.
- the first wireless network identifier/second wireless network identifier is part or all of the content of the public land mobile network identifier PLMN ID.
- the first wireless network identifier/second wireless network identifier is a mobile in a PLMNID Network number MNC.
- the first sending unit and the second sending unit send the second wireless network identifier to the UE on the Pcell and the second wireless network identifier on the Scell through the broadcast system information block SIB-1.
- Embodiment 7 of the present invention provides a network side device, including a processor and a data transceiver interface, where:
- the processor is configured to: send, by the primary serving cell Pcell, a first wireless network identifier to the UE, where the carrier used by the Pcell is a carrier on a non-shared spectrum; and send the same to the UE on the secondary serving cell Scell
- the first wireless network identifies the same second wireless network identifier, so that the UE determines whether it can communicate with the network side on the Scell, the carrier used by the Scell is a carrier on the shared spectrum, and the first wireless network identifier/second wireless network
- the identifier uniquely identifies a wireless network operator; the data transceiving interface is configured to implement data communication between the processor and the UE.
- the eighth embodiment of the present invention further provides a user equipment UE that determines the spectrum to be used.
- the method includes:
- the search unit 1301 is configured to receive a first wireless network identifier that is sent by the network side on the primary serving cell Pcell, and search for a second wireless network identifier that is sent by the network side on the secondary serving cell Scell, where the carrier used by the Pcell is unshared.
- Carrier on the spectrum, the carrier used by the Scell is a carrier on the shared spectrum;
- the first determining unit 1302 is configured to receive the second wireless network identifier sent by the network side on the Scell, and determine that the network identifier is consistent with the first wireless network identifier sent by the network side on the Pcell, and determine that the network can be connected to the network on the Scell. Side communication
- the second determining unit 1303 is configured to not receive the second wireless network identifier sent by the network side on the Scell, or receive the second wireless network identifier sent by the network side on the Scell, and determine that the network side is in the Pcell When the first wireless network identifier sent on is inconsistent, it is determined that the network side cannot communicate with the network.
- the UE further includes: a first feedback unit, configured to: when the Scell is in communication with the network side, further comprising: feeding back a signal measurement result on the Scell to the network side.
- a first feedback unit configured to: when the Scell is in communication with the network side, further comprising: feeding back a signal measurement result on the Scell to the network side.
- the UE further includes: a second feedback unit, configured to: when not communicating with the network side on the Scell, not to feed back the signal measurement result on the Scell to the network side, or feed back to the network side feedback information indicating that the signal measurement result on the Scell is invalid, or Feedback information indicating that the Scell cell identifier is changed is fed back to the network side.
- a second feedback unit configured to: when not communicating with the network side on the Scell, not to feed back the signal measurement result on the Scell to the network side, or feed back to the network side feedback information indicating that the signal measurement result on the Scell is invalid, or Feedback information indicating that the Scell cell identifier is changed is fed back to the network side.
- the searching unit is configured to search, by using the first downlink shared channel, a second radio network identifier that is sent by the network side on the Scell, and a transport channel of the scheduling information corresponding to the first downlink shared channel.
- the first common search space of the control channel is a common search space of the Pcell or a common search space of the Scell.
- the searching unit is configured to: search, by using the second downlink shared channel, the second wireless network identifier that is sent by the network side on the Scell; the resource corresponding to the second downlink shared channel is a Scell and a Scell Identify the corresponding preset resource.
- the searching unit is specifically configured to search, in the third downlink shared channel, the second wireless network identifier sent by the network side on the Scell according to the stored predicted sequence.
- the searching unit is specifically configured to: perform descrambling on the received signal by using the first wireless network identifier sent by the network side on the Pcell;
- the first determining unit is specifically configured to determine that the descrambled signal is related to the stored predicted sequence, determine the second wireless network identifier sent by the network side on the Scell, and determine the first that is sent by the network side on the Pcell.
- the wireless network ID is consistent.
- the predicted sequence is any one or any of the following sequences:
- Primary synchronization signal PSS sequence Secondary synchronization signal SSS sequence, or cell-specific pilot signal CRS sequence.
- the first wireless network identifier / the second wireless network identifier is part or all of the content of the public land mobile network PLMN.
- the first wireless network identifier / the second wireless network identifier is a mobile network number MNC in the PLMN.
- the searching unit is specifically configured to receive, by using the broadcast system information block SIB-1, the first wireless network identifier sent by the network side on the Pcell, and search for the second wireless network identifier sent by the network side on the Scell.
- the ninth embodiment of the present invention provides a UE, including a processor and a data transceiving interface, where: the processor is configured to: receive a first radio network identifier sent by the network side on the primary serving cell Pcell, and search the network.
- the second radio network identifier sent by the side on the secondary serving cell Scell, the carrier used by the Pcell is a carrier on the unshared spectrum, the carrier used by the Scell is a carrier on the shared spectrum, and the network side is received at the Scell.
- the data transceiving interface is configured to implement data communication between the processor and a network side.
- a network side device is further provided.
- the method includes: a time calibration unit 1402, configured to determine, when performing time calibration, a system time during calibration according to the stored M time segments. Aligning with a time position in one of the time segments, according to the cyclic sequence of the stored M time segments, establishing a relationship between the M time segments and the system time according to a preset cycle sequence, where M is an integer greater than one;
- the communication unit 1403 is configured to determine, when the Cell-ID is used to communicate with the user equipment UE on the carrier of the shared spectrum, determine the current system time according to the established M time period according to a preset cyclic sequence and the system time. Corresponding time period, according to the correspondence between the stored M time segments and the Cell-ID, determining the Cell-ID corresponding to the time segment, and communicating with the UE by using the determined Cell-ID on the carrier of the shared spectrum, where Different wireless network operators have different Cell-IDs for the same time period.
- the device further includes:
- the sending unit is configured to send the stored M time segments, the cyclic sequence of the M time segments, and the correspondence between the M time segments and the Cell-ID to the UE.
- the device further includes:
- a timing determining unit configured to determine a time period during which the current system time is located and a time position t of the current system time in the time period when the timed time is reached;
- a broadcast unit configured to broadcast, to the UE, the determined time position t and a Cell-ID corresponding to a time period in which the current system is located.
- the device further includes:
- a request determining unit configured to determine a time period in which the current system time is located and a time position t in the current system time in the time period when receiving the time request of the UE;
- a first sending unit configured to send, to the UE, the determined time position t and a Cell-ID corresponding to a time period in which the current system time is located.
- the device further includes:
- connection determining unit configured to determine a time period T during which the current system time is located and a time position t of the current system time in the time period when the UE needs to establish a connection
- a second sending unit configured to send, to the UE, the determined time position t and a Cell-ID corresponding to a time period in which the current system time is located.
- the communication unit when the communication unit uses the Cell-ID corresponding to the time period to communicate with the UE on the carrier sharing the spectrum, the communication unit is further configured to:
- the time position t of the current system time in the time period is sent to the UE.
- the Cell-ID corresponding to the same time period is different.
- the eleventh embodiment of the present invention further provides a network side device, where the device includes a processor and a data receiving and sending interface, where:
- the processor is configured to: determine, when performing the time calibration, align the system time at the time of calibration with a time position of one of the time periods according to the stored M time periods, according to the cycle of the stored M time periods Sequence, establishing a relationship between the M time segments and the system time according to a preset cyclic sequence, where ⁇ is an integer greater than 1; determining that the Cell-ID needs to communicate with the user equipment UE on the carrier of the shared spectrum, according to the established The time period corresponding to the system time is determined according to a preset cycle sequence, and the time period corresponding to the current system time is determined, and the corresponding relationship between the M time segments and the Cell-ID is determined according to the corresponding time period.
- Cell-ID which communicates with the UE using the determined Cell-ID on the carrier sharing the spectrum, where, for different wireless network operators, the same The time corresponding to the Cell-ID is different;
- the data transceiving interface is configured to implement data communication between the processor and the UE.
- a user equipment UE is further provided.
- the method includes: a time calibration unit 1501, when determining the time calibration, one of the M time periods during calibration and the stored M time periods. A time position in the time segment is aligned, and according to the cyclic sequence of the stored M time segments, the relationship between the M time segments and the system time according to a preset cycle sequence is established, and M is an integer greater than 1.
- the communication unit 1502 is configured to determine, when using the Cell-ID to communicate with the network side on the carrier of the shared spectrum, according to the established M time segments, according to a preset cyclic sequence and the system time, determining the current system time corresponding The time period is determined according to the correspondence between the stored M time segments and the Cell-ID, and the Cell-ID corresponding to the time segment is determined, and the determined Cell-ID is used to communicate with the network side on the carrier of the shared spectrum.
- the time calibration unit receives the Cell-ID and the time position t sent by the network side when the Cell-ID is used to communicate with the UE on the carrier of the shared spectrum, or receives the Cell sent by the network side arrival timing.
- -ID and time position t or when receiving the Cell-ID and time position t sent by the network side according to the request of the UE, or when receiving the Cell-ID and the time position t sent by the network side when determining the connection with the UE, determining the time of execution Calibrating; determining a time period corresponding to the received Cell-ID according to the correspondence between the stored M time periods and the Cell-ID; aligning the system time at the time of calibration with the time position t in the determined time period.
- the thirteenth embodiment of the present invention further provides a UE, where the UE includes a processor and a data transceiver interface, where:
- the processor is configured to: when determining the time calibration, align the system time at the time of calibration with one of the stored time periods of the M time periods, according to the cyclic sequence of the stored M time periods, Establish a relationship between the M time segments and the system time according to a preset cyclic sequence, where M is an integer greater than 1; when the Cell-ID is used to communicate with the network side on the carrier of the shared spectrum, according to the established M times
- the segment corresponds to the system time according to the preset cycle sequence, and determines the time period corresponding to the current system time, according to the stored M time segments and the Cell-ID.
- determining a Cell-ID corresponding to the time period and using the determined Cell-ID to communicate with the network side on the carrier of the shared spectrum;
- the data transceiving interface is configured to implement data communication between the processor and a network side.
- embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
- computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
- the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
- the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
- These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
- the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
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Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
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CN201380002899.4A CN104885540B (zh) | 2013-12-25 | 2013-12-25 | 一种指示和确定使用频谱的方法及装置 |
EP13900188.7A EP3065482B1 (en) | 2013-12-25 | 2013-12-25 | Method and apparatus for indicating and determining to use frequency spectrum |
KR1020167016895A KR101750845B1 (ko) | 2013-12-25 | 2013-12-25 | 주파수 스펙트럼의 사용을 지시하고 결정하는 방법, 및 장치 |
JP2016543053A JP6203412B2 (ja) | 2013-12-25 | 2013-12-25 | スペクトルの使用を指示及び判定する方法、並びに装置 |
PCT/CN2013/090472 WO2015096075A1 (zh) | 2013-12-25 | 2013-12-25 | 一种指示和确定使用频谱的方法及装置 |
US15/192,616 US20160309509A1 (en) | 2013-12-25 | 2016-06-24 | Methods for indicating and determining to use spectrum, and apparatus |
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KR102656612B1 (ko) * | 2019-08-16 | 2024-04-12 | 삼성전자주식회사 | 무선 통신 시스템에서 이동 통신 사업자 간 주파수 자원을 공유하여 단말과 통신하는 방법 및 장치 |
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EP3065482A1 (en) | 2016-09-07 |
CN104885540A (zh) | 2015-09-02 |
CN104885540B (zh) | 2019-04-19 |
KR101750845B1 (ko) | 2017-07-11 |
EP3065482A4 (en) | 2017-01-11 |
US20160309509A1 (en) | 2016-10-20 |
JP2017505041A (ja) | 2017-02-09 |
KR20160090366A (ko) | 2016-07-29 |
JP6203412B2 (ja) | 2017-09-27 |
EP3065482B1 (en) | 2019-09-18 |
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