WO2017133550A1 - 频点选择方法及装置 - Google Patents

频点选择方法及装置 Download PDF

Info

Publication number
WO2017133550A1
WO2017133550A1 PCT/CN2017/072270 CN2017072270W WO2017133550A1 WO 2017133550 A1 WO2017133550 A1 WO 2017133550A1 CN 2017072270 W CN2017072270 W CN 2017072270W WO 2017133550 A1 WO2017133550 A1 WO 2017133550A1
Authority
WO
WIPO (PCT)
Prior art keywords
frequency point
service
information
frequency
paging
Prior art date
Application number
PCT/CN2017/072270
Other languages
English (en)
French (fr)
Inventor
沙秀斌
戴博
戴谦
艾建勋
肖炼斌
陆婷
杜忠达
余媛芳
塞尔吉奥·帕洛拉里
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201610877947.XA external-priority patent/CN107046707B/zh
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to PL17746870.9T priority Critical patent/PL3413609T3/pl
Priority to KR1020187024940A priority patent/KR102279620B1/ko
Priority to EP17746870.9A priority patent/EP3413609B1/en
Priority to JP2018541153A priority patent/JP6827475B2/ja
Publication of WO2017133550A1 publication Critical patent/WO2017133550A1/zh
Priority to US16/055,813 priority patent/US11212848B2/en
Priority to US17/457,416 priority patent/US11723085B2/en
Priority to US18/357,080 priority patent/US20230363025A1/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition

Definitions

  • the present invention relates to the field of communications, and in particular to a frequency point selection method and apparatus.
  • Machine to Machine (M2M) communication is an important subject of the fifth generation of mobile communication technology (5G), and an important application field for wireless communication in the future.
  • M2M project for the characteristics of low-cost low-throughput type terminals, the research sub-topic of the NarowBand-Internet of Things (NB-IoT) is proposed: that is, NB-IoT in the 200khz frequency band.
  • Low-cost terminals provide low-throughput wireless communication services.
  • the NB-IoT introduces a context suspension and recovery mechanism: that is, User Equipment (UE) and Mobility Management Entity (referred to as Mobility Management Entity).
  • UE User Equipment
  • Mobility Management Entity Mobility Management Entity
  • the radio resource control (Radio Resource Control, RRC for short) connection suspension mechanism may be used to perform the bearer context of the UE on the evolved base station (eNB, also called eNodeB) side and the MME side.
  • eNB evolved base station
  • eNodeB evolved base station
  • the AS context is suspended.
  • the data transmission between the UE and the MME is required.
  • the Uu and S1 interfaces of the UE are quickly restored through the RRC connection recovery process.
  • each frequency point is independent of one cell, there are two problems: 1) multiple cells in the same coverage area may exist, and too many cells will bring unnecessary radio quality measurement overhead to the UE; 2) Each frequency point is independently a cell, and each frequency point needs to be configured with a broadcast channel and a synchronization channel, which is also wasteful of frequency resources.
  • a multi-frequency point cell strategy a plurality of single-frequency point cells covering the same area in the same eNodeB are aggregated into one multi-frequency point cell.
  • the specific performance is as follows: multiple frequency points share one physical cell identifier, share a broadcast channel and a synchronization channel, and the traffic channel can be transmitted at a certain frequency point in the cell.
  • the frequency point carrying the broadcast channel and the synchronization channel is called an anchor frequency point (Anchor frequency point); the frequency point not carrying the broadcast channel and the synchronization channel is called a non-anchor carrier (Non-Anchor frequency point).
  • the currently proposed service frequency selection strategy is that the UEs are distributed to different frequency points on the basis of the International Mobile Subscriber Identification Number (IMSI), or the UE uses the frequency hopping strategy to dynamically schedule on multiple frequency points.
  • IMSI International Mobile Subscriber Identification Number
  • the UE dynamically schedules UE frequency switching on multiple carriers, which is not efficient for NB-IoT systems with small data transmission. .
  • the selection strategy for the service frequency in the related art is passive selection, lacking the initiative problem, and no solution has been given yet.
  • the embodiment of the invention provides a frequency point selection method and device, so as to solve at least the problem that the service frequency selection strategy in the related art is passive selection and lacks initiative.
  • a frequency point selection method including: determining, by a UE, whether information of a service frequency point sent by a base station is received, where the service frequency point is that a target cell that carries the UE is In the case of a frequency point cell, the frequency point of the bearer service selected by the base station; if yes, the UE camps on a frequency point corresponding to the information of the service frequency point; otherwise, the UE resides in the original station Leave the frequency on.
  • the determining, by the UE, whether the information of the service frequency point sent by the base station is received includes: receiving, by the UE, an RRC connection setup message, or an RRC connection recovery message, or an RRC connection re-establishment message, or an RRC connection reconfiguration message; The UE determines whether the information of the service frequency point is carried in the received RRC connection setup message, or RRC connection recovery message, or RRC connection re-establishment message, or RRC connection reconfiguration message.
  • the UE determines that the information about the service frequency point sent by the base station is received, performing a subsequent process of the UE on the service frequency point; otherwise, at a current camping frequency point.
  • the subsequent process of the UE is performed.
  • the subsequent process of the UE includes at least one of the following processes in the current connection mode of the UE: a data transmission and reception process in a current connection mode, a signaling process in a current connection mode, and a random connection in a current connection mode.
  • a data transmission and reception process in a current connection mode a current connection mode
  • a signaling process in a current connection mode a current connection mode
  • a random connection in a current connection mode Into the process.
  • the random access parameter of the service frequency point adopts a random access parameter of a cell broadcast.
  • the selection strategy of the UE-resident frequency point is: the result of the determination is that the received base station sends an RRC release message, or an RRC connection suspension message.
  • the UE camps on the RRC release And the frequency corresponding to the information of the service frequency point carried in the message or the RRC connection suspension message; or, in the determination result, the receiving the base station sends an RRC release message, or an RRC connection suspension message, and/or an RRC connection establishment a message, and/or an RRC connection recovery message, wherein the RRC release message, and/or the RR ⁇ C connection suspension message does not carry information of the service frequency point, but an RRC connection setup message, or an RRC connection recovery message
  • the UE is camped on the frequency corresponding to the information of the service frequency carried in the RRC connection setup message or the RRC connection recovery message; or, Knot Sending an RRC release message, or an RRC connection suspension message, and/or an RRC connection setup message, and/or an RRC connection recovery message for receiving
  • the method further includes: sending, by the UE, multi-frequency point support capability information of the UE to the base station, where the UE is multi-frequency
  • the point support capability information is used to indicate whether the UE supports the multi-frequency point function.
  • the multi-frequency point support capability information of the UE is carried by one of the following messages: an RRC connection request, an RRC connection recovery request, and an RRC connection re-establishment request.
  • the UE supporting the multi-frequency point function refers to the information that the UE allows to accept the service frequency point configured by the base station.
  • the receiving, by the UE, information about a service frequency point sent by the base station the method further includes: receiving, by the UE, transmit power information of a narrowband reference signal NRS of the service frequency point sent by the base station.
  • the method before the receiving, by the UE, the information of the service frequency point sent by the base station, the method further includes: receiving, by the UE, NRS transmit power information of the service frequency point that is sent by the base station by using the system information block SIB.
  • the NRS transmit power information of the service frequency point provides energy of the NRS on each resource unit, and when the UE is assigned to the service frequency point, the UE performs RSRP measurement and/or path loss calculation. .
  • the method further includes: the NRS transmit power information of the service frequency point is characterized by a deviation from the anchor frequency point NRS power; or the NRS transmit power information corresponding to the service frequency point passes the The frequency of the service frequency is characterized by the absolute value of the NRS power.
  • the method further includes: sending, by the UE, a narrowband reference signal received power NRSRP value to the base station, where the NRSRP value is measured by the UE And the power value on the resource unit that carries the narrowband reference signal on the Anchor Anchor carrier, or the predefined offset value of the power value on the resource unit that carries the narrowband reference signal on the measured Anchor carrier.
  • the NRSRP value is used by the base station to determine the downlink radio coverage quality of the UE.
  • the narrowband reference signal received power NRSRP value measured by the UE is carried by one of the following messages: an RRC connection request, an RRC connection recovery request, and an RRC connection re-establishment request.
  • the predefined offset value is: a power difference of the non-anchored Non-anchor carrier NRS power relative to the Anchor carrier NRS power.
  • the determining method of the radio coverage level of the UE in the Non-Anchor carrier includes: the measured Anchor of the UE
  • the narrowband reference signal received power NRSRP value of the carrier is compared with the wireless coverage level threshold to be obtained.
  • the wireless coverage level threshold is configured by the system information block.
  • the predefined offset value may be: a power difference of the Non-anchor carrier narrowband reference signal NRS power relative to the Anchor carrier NRS power.
  • the initial physical random access channel PRACH of the UE is carried on the Non-Anchor carrier as an initial PRACH procedure, where the initial PRACH procedure refers to a PRACH procedure other than the PRACH procedure triggered by the physical downlink control channel command PDCCH order.
  • another frequency point selection method including: determining, by a base station, whether a target cell carrying a UE is a multi-frequency point cell; if yes, transmitting, by the base station, information of a service frequency point The UE, where the service frequency is a frequency point of the bearer service selected by the base station for the UE.
  • the method further includes: receiving, by the base station, an RRC connection request, or an RRC connection recovery request, or an RRC connection re-establishment request of the UE.
  • the base station further includes: the base station receiving the RRC connection request Or the RRC connection re-establishment request, or the RRC connection re-establishment request, acquiring the multi-frequency point support capability information of the UE, where the multi-frequency point support capability information of the UE is used to indicate whether the UE supports multiple frequency points Features.
  • the method further includes: the base station selecting a service frequency point of the multi-frequency point cell for the UE and configuring a service Frequency information.
  • the sending, by the base station, the information of the service frequency point to the UE includes: the base station carrying the information of the service frequency point in an RRC connection setup message, and sending the information to the UE; or
  • the information about the service frequency is carried in the RRC connection recovery message and sent to the UE; or the base station carries the information of the service frequency in the RRC connection re-establishment message and sends the information to the UE; or
  • the base station carries the information of the service frequency point in an RRC connection reconfiguration message and sends the information to the UE.
  • the sending, by the base station, the information of the service frequency point to the UE further includes: sending, by the base station, NRS transmit power information of the service frequency point to the UE.
  • the sending, by the base station, the NRS transmit power information of the service frequency point to the UE further includes: the base station carrying the NRS transmit power information of the service frequency point in a system message block SIB, and sending the information to the UE; Or the base station sends the NRS transmit power information of the service frequency point to the UE in an RRC connection setup message; or the base station carries the NRS transmit power information of the service frequency point in the RRC connection recovery.
  • the message is sent to the UE; or the base station carries the NRS transmit power information of the service frequency point in an RRC connection re-establishment message and sends the information to the UE; or the base station sends the service frequency point
  • the NRS transmit power information is carried in the RRC connection reconfiguration message and sent to the UE.
  • the method further includes: the NRS transmit power information corresponding to the service frequency point is characterized by a deviation from the anchor frequency point NRS power; or the NRS transmit power information corresponding to the service frequency point passes through the The absolute value of the NSR power of the service frequency is characterized.
  • the base station performs a subsequent process on the UE at the service frequency point; otherwise, the base station sends the information to the UE.
  • the subsequent process is performed at the current dwell frequency.
  • the subsequent process performed by the base station on the UE includes at least one of the following processes in the current connection mode of the UE: a data transmission and reception process in a current connection mode, a signaling process in a current connection mode, and a current Random access procedure in connected mode.
  • the method further includes: the base station broadcasting a random access parameter to the UE, where the random access parameter is applicable to all frequency points in the cell.
  • the information of the service frequency point is information corresponding to a frequency point carrying a broadcast channel.
  • the method further includes: the base station Obtaining, by the received RRC connection request, or an RRC connection re-establishment request, or an RRC connection re-establishment request, a value of a narrowband reference signal received power NRSRP, where the NRSRP value indicates a resource unit that is received by the UE and carries a narrowband reference signal.
  • the power value on the NRSRP value is used by the base station to determine the downlink radio coverage quality of the UE.
  • the method further includes: determining, by the base station, at least one of the following: based on the NRSRP value: a radio coverage level, an uplink radio coverage level, a downlink radio coverage level, a physical layer repeated transmission times of the uplink channel, and a downlink The physical layer of the channel repeats the number of transmissions.
  • a frequency point selection method including: determining, by a UE, whether a paging frequency point list carried in a broadcast information of a multi-frequency point cell, and/or a paging frequency point number, wherein The paging frequency list includes a frequency point for carrying a paging message; the number of paging frequency points is used to determine a paging frequency point list; if yes, the UE is in accordance with a preset rule. The frequency point is selected in the paging frequency list as the frequency of receiving paging and/or bearer services.
  • the selecting, by the UE, the frequency point in the paging frequency list as the frequency of receiving the paging and/or bearer service according to the preset rule the UE acquiring the receiving according to the preset rule. a frequency point index corresponding to a frequency point of paging and/or bearer service; determining, according to the frequency point index, a frequency point of the corresponding receiving paging and/or bearer service.
  • the acquiring, by the UE, the frequency point index corresponding to the frequency of receiving the paging and/or the bearer service according to the preset rule, that the UE, according to the identifier of the UE, and the carrying the paging message The number of frequency points is modulo to obtain the corresponding frequency index.
  • a frequency point selection method including: determining, by a base station, a paging frequency point list, and/or a paging frequency point number, where the paging frequency point list is included a frequency point for carrying a paging message, where the paging frequency point list is used by the user equipment UE to select a frequency point in the paging frequency point list according to a preset rule as a frequency point for receiving a paging and/or bearer service.
  • the number of paging frequency points is used to determine a paging frequency point list; the base station carries the paging frequency point list and/or the paging frequency point number in the broadcast information of the multi-frequency point cell.
  • a frequency point selection method including: a UE acquires a frequency point of carrying paging information and/or a bearer service by using a PDCCH carrying paging indication information; Subsequent paging information and/or transmission of traffic is performed at the frequency.
  • the acquiring, by the UE, the frequency of the bearer paging information and/or the bearer service by using the PDCCH that carries the paging indication information includes: receiving, by the UE, the paging message information and/or service carried in the multi-frequency point cell by using the broadcast a frequency point list of frequency points; the UE acquires an index of the frequency information of the bearer paging information and/or the bearer service in the frequency point list in the PDCCH.
  • the acquiring, by the UE, the index of the frequency of the bearer paging information and/or the bearer service in the PDCCH in the PDCCH includes: the UE acquiring the bearer in the PDCCH by using a DCI.
  • a frequency point selection method including: determining, by a base station, frequency information that carries paging information and/or bearer service; and the base station indicates to the UE by using a PDCCH carrying paging indication information The frequency point carrying the paging information and/or the bearer service, where the frequency point is used by the UE to perform subsequent paging information and/or service transmission on the frequency point.
  • the determining, by the base station, the frequency of the bearer paging information and/or the bearer service by using the PDCCH that carries the paging indication information the base station, by using the broadcast, to send the paging message information in the multi-frequency point cell.
  • the frequency point list of the frequency of the service is given to the UE; the base station carries an index of the frequency information of the bearer paging message information and/or service in the frequency point list in the PDCCH.
  • the index that the base station carries, in the PDCCH, the frequency information of the bearer paging message information and/or the service in the frequency point list includes: the base station carries the bearer in the PDCCH by using DCI The index of the paging message information and/or the frequency of the service in the list of frequency points.
  • another method for selecting a frequency point including: determining, by the UE, whether a broadcast frequency information of a multi-frequency point cell carries a service frequency point list, where the service frequency point list includes The frequency of the bearer service; if yes, the UE selects a frequency point in the service frequency list according to a preset rule as a frequency point for the UE to initiate a service request.
  • the selecting, by the UE, the frequency point in the service frequency point list as the frequency of initiating the service request according to the preset rule the acquiring, by the UE, the frequency of the UE actively initiating a service request according to the preset rule.
  • a frequency point index of the point determining, according to the frequency point index, a frequency point at which the corresponding UE actively initiates a service request.
  • the frequency point index of the frequency at which the UE acquires the frequency of the UE actively initiating the service request according to the preset rule includes: the frequency of the frequency that the UE actively initiates a service request according to the identifier of the UE The number of points is taken to obtain the frequency index.
  • another frequency point selection method including: determining, by a base station, a service frequency point list, where the service frequency point list includes a frequency point for carrying a service, where the service The frequency point list is used by the UE to select a frequency point in the service frequency point list as a frequency point for initiating a service request according to a preset rule; the base station carries the service frequency point list in the broadcast information of the multi-frequency point cell.
  • a frequency point selecting apparatus which is located at the UE, and includes: a first determining module, configured to determine whether to receive information of a service frequency point sent by the base station, where the service frequency is In the case that the target cell carrying the UE is a multi-frequency cell, the frequency of the bearer service selected by the base station; the resident module is set to stay in the service frequency if the determination result is yes.
  • the point information corresponds to the frequency point; or if the judgment result is no, it stays at the original frequency.
  • another frequency point selecting apparatus which is located at a base station, and includes: a second determining mode a block, configured to determine whether the target cell carrying the UE is a multi-frequency point cell; the first sending module is configured to send information of the service frequency point to the UE if the determination result is yes, where the service frequency The point is a frequency point of the bearer service selected by the base station for the UE.
  • a frequency point selecting apparatus which is located at the UE, and includes: a third determining module, configured to determine whether a paging frequency point list carried in the broadcast information of the multi-frequency point cell, and/or Or the number of paging frequency points, where the paging frequency point list includes a frequency point for carrying a paging message; the number of paging frequency points is used to determine a paging frequency point list; selecting a module, setting In the case that the judgment result is yes, the frequency point is selected in the paging frequency point list as a frequency point for receiving the paging and/or bearer service according to a preset rule.
  • a frequency point selecting apparatus which is located at a base station, and includes: a first determining module, configured to determine a paging frequency point list, and/or a paging frequency point number, where The paging frequency list includes a frequency point for carrying a paging message, where the paging frequency point list is used by the user equipment UE to select a frequency point in the paging frequency point list according to a preset rule.
  • the frequency of the paging and/or bearer service; the number of paging frequency points is used to determine a paging frequency point list; and the second sending module is configured to carry the paging frequency point in the broadcast information of the multi-frequency point cell List, and/or number of paging frequencies.
  • a frequency point selecting apparatus which is located in a UE, and includes: an acquiring module, configured to acquire a frequency point of carrying paging information and/or bearer service by using a PDCCH carrying paging indication information. And a transmission module configured to perform subsequent paging information and/or transmission of the service at the frequency point.
  • a frequency point selecting apparatus located at a base station, comprising: a second determining module, configured to determine a frequency point for carrying paging information and/or bearer service; and a third sending module, Set to indicate, by the PDCCH carrying the paging indication information, a frequency point of carrying the paging information and/or the bearer service, where the frequency point is used by the UE to perform subsequent paging information and/or on the frequency point.
  • a frequency point selecting apparatus located at a base station, comprising: a second determining module, configured to determine a frequency point for carrying paging information and/or bearer service; and a third sending module, Set to indicate, by the PDCCH carrying the paging indication information, a frequency point of carrying the paging information and/or the bearer service, where the frequency point is used by the UE to perform subsequent paging information and/or on the frequency point.
  • the UE determines whether to receive the information of the service frequency point sent by the base station, where the service frequency point is the bearer service selected by the base station when the target cell carrying the UE is a multi-frequency point cell. a frequency point; if yes, the UE resides at a frequency point corresponding to the information of the service frequency point; otherwise, the manner in which the UE resides on the original frequency of the frequency resolves the service in the related art.
  • the frequency selection strategy is passive selection, lacking the initiative problem, and technically gives the basis for realizing the load balancing of the frequency of the bearer service, and further improves the NB-IoT system based on small data transmission. System efficiency.
  • FIG. 1 is a flow chart of a frequency point selection method according to an embodiment of the present invention.
  • FIG. 2 is a block diagram showing the structure of a frequency point selecting apparatus according to an embodiment of the present invention
  • FIG. 3 is a flow chart of another frequency point selection method according to an embodiment of the present invention.
  • FIG. 4 is a block diagram showing the structure of another frequency point selecting apparatus according to an embodiment of the present invention.
  • FIG. 5 is a flowchart of still another frequency point selection method 1 according to an embodiment of the present invention.
  • FIG. 6 is a structural block diagram of still another frequency point selecting apparatus 1 according to an embodiment of the present invention.
  • FIG. 7 is a flowchart of still another frequency point selection method 2 according to an embodiment of the present invention.
  • FIG. 8 is a structural block diagram of still another frequency point selecting apparatus 2 according to an embodiment of the present invention.
  • FIG. 9 is a flowchart of still another method for selecting a frequency point according to an embodiment of the present invention.
  • FIG. 10 is a structural block diagram of still another frequency point selecting apparatus 1 according to an embodiment of the present invention.
  • FIG. 11 is a flowchart of still another method 2 of selecting a frequency point according to an embodiment of the present invention.
  • FIG. 12 is a structural block diagram of still another frequency point selecting apparatus 2 according to an embodiment of the present invention.
  • Figure 13 is a flow chart according to a first embodiment of the present invention.
  • Figure 14 is a flow chart according to a second embodiment of the present invention.
  • Figure 15 is a flow chart according to a third embodiment of the present invention.
  • Figure 16 is a flow chart showing a fourth embodiment of the present invention.
  • Figure 17 is a flow chart according to Embodiment 5 of the present invention.
  • Figure 18 is a flow chart according to Embodiment 6 of the present invention.
  • Figure 19 is a flow chart showing a seventh embodiment of the present invention.
  • Figure 20 is a flow chart showing an eighth embodiment of the present invention.
  • Figure 21 is a flow chart of a ninth embodiment of the present invention.
  • Figure 22 is a flow chart showing a tenth embodiment of the present invention.
  • Figure 23 is a flow chart showing an eleventh embodiment of the present invention.
  • Figure 24 is a flow chart showing a twelfth embodiment according to the present invention.
  • Figure 25 is a flow chart showing a thirteenth embodiment of the present invention.
  • FIG. 26 is a flowchart of still another method 3 of selecting a frequency point according to an embodiment of the present invention.
  • FIG. 27 is a flowchart of still another method 4 of selecting a frequency point according to an embodiment of the present invention.
  • FIG. 1 is a flowchart of a frequency point selection method according to an embodiment of the present invention. As shown in FIG. 1, the flow includes the following steps:
  • Step S102 The UE determines whether the information of the service frequency point sent by the base station is received, where the service frequency is the frequency of the bearer service selected by the base station when the target cell that carries the UE is a multi-frequency point cell. point;
  • Step S104 If yes, the UE camps on a frequency point corresponding to the information of the service frequency point; otherwise, the UE resides at the original frequency of the frequency.
  • the base station selects a frequency point of the bearer service when the target cell that carries the UE is a multi-frequency point cell, and sends the information of the service frequency point to the UE, and the UE selects the corresponding information by receiving the information of the service frequency point.
  • the service frequency is used for transmitting and receiving data, and if the UE does not receive the information of the service frequency, it stays at the original frequency, so that the frequency at which the UE camps may be the bearer service actively selected by the base station.
  • the frequency point solves the problem that the service frequency selection strategy in the related technology is passive selection and lacks initiative.
  • the technical basis is given to realize the load balancing of the frequency of the bearer service, and further to the small data transmission.
  • the main NB-IoT system improves system efficiency.
  • the base station herein may be an evolved base station eNodeB.
  • the base station may send the information of the service frequency point by using an RRC connection request, or an RRC connection resuming request, or an RRC connection re-establishment message, or an RRC connection reconfiguration message, in this case, in the foregoing steps.
  • the terminal may receive an RRC connection setup message, or an RRC connection recovery message (ie, an RRC connection recovery complete message), or an RRC connection re-establishment message, or an RRC connection reconfiguration message, and then determine the received RRC connection establishment. Whether the information of the service frequency point is carried in the message, or the RRC connection recovery message, or the RRC connection re-establishment message, or the RRC connection reconfiguration message.
  • the UE determines that the information about the service frequency point sent by the base station is received, performing the subsequent process of the UE on the service frequency point; otherwise, at the current station
  • the subsequent process of the UE is performed at the frequency-removing point.
  • the subsequent process of the UE may include all processes of the UE in the current connection mode, for example, data transmission and reception in the current connection mode, signaling in the current connection mode, and a random access process in the current connection mode. .
  • the random access parameter of the service frequency point adopts a random access parameter of a cell broadcast.
  • the UE may be camped on a frequency point carrying a broadcast channel.
  • the specific implementation can be as follows:
  • the UE can only detect the frequency of the broadcast channel, so it can only choose to stay on the frequency of the bearer broadcast channel;
  • the cell When the cell is reselected: it is implemented by a broadcast information configuration policy.
  • the broadcast information When the broadcast information is configured, the neighboring frequency point is based on the frequency of the broadcast channel. In this way, when the UE reselects, it will naturally reselect to the frequency point that carries the broadcast channel.
  • the result of the determination in step S102 is that the receiving base station transmits an RRC release message, or an RRC connection suspension message, and/or an RRC connection setup message, and/or an RRC connection recovery message, wherein the RRC release message or the RRC connection suspension message
  • the information of the service frequency also referred to as a redirection cell
  • the information of the service frequency only fills in the information corresponding to the frequency point carrying the broadcast channel, so that the UE resides on the bearer.
  • the RRC release message, and/or the RRC connection suspension message does not carry the information of the service frequency point (also called redirection cell), but the RRC connection setup message, or the RRC connection recovery
  • the message carries the information of the service frequency (redirecting cell), and the UE is camped on the frequency point corresponding to the information of the service frequency point carried in the RRC connection setup message or the RRC connection recovery message; If the RRC release message, and/or the RRC connection suspension message, and/or the RRC connection setup message, and/or the RRC connection recovery message do not carry the information of the service frequency point (also referred to as a redirect cell), Then the UE automatically resides in the current state after being released.
  • the cell carries the frequency of the broadcast channel and the synchronization channel.
  • the selection strategy of the UE-resident frequency point is: in the judgment result, the receiving the base station sends an RRC release message or an RRC connection suspension message, If the RRC release message or the RRC connection suspension message carries the information of the service frequency point, the UE camps on the service carried in the RRC release message or the RRC connection suspension message.
  • the frequency point corresponds to the frequency point; or, in the judgment result, the receiving base station sends an RRC release message, or an RRC connection suspension message, and/or an RRC connection setup message, and/or an RRC connection recovery message, where The RRC release message, and/or the RRC connection suspension message does not carry the information of the service frequency point, but the RRC connection setup message or the RRC connection recovery message carries the information of the service frequency point.
  • the UE is camped on the frequency point corresponding to the information of the service frequency point carried in the RRC connection setup message or the RRC connection recovery message; or, in the judgment result, the received base station sends an RRC release message, or an RRC connection.
  • the UE In the case of carrying the information of the service frequency, the UE camps on the frequency point at which the UE camped in the last idle mode.
  • the UE re-establishes the RRC connection setup message, or an RRC connection recovery message, or an RRC connection.
  • the NRS transmit power information of the service frequency point provides energy (Energy Per Resource Element, EPRE) of the NRS on each resource unit, and is used by the UE to perform: RSRP (Reference Signal Received Power) measurement, and/or, Road loss calculation.
  • the NRS transmit power information corresponding to the service frequency point may be characterized by a deviation from the Anchor frequency NRS power, or the NRS transmit power information corresponding to the service frequency point may pass the service frequency point NRS power. Absolute value to characterize.
  • the frequency of the bearer broadcast channel in the cell may be obtained by using SIB information or RRC signaling.
  • the UE may further send the multi-frequency point support capability information of the UE to the base station, where the UE The multi-frequency point support capability information is used to indicate whether the UE supports the multi-frequency point function.
  • the UE supporting the multi-frequency point function in this embodiment may refer to the The UE allows to accept information of the service frequency point configured by the base station.
  • the multi-frequency point support capability information of the UE may be carried by one of the following messages: an RRC connection request, an RRC connection recovery request, and an RRC connection re-establishment request.
  • the UE receives the NRS transmit power information of the service frequency point by using the SIB.
  • the NRS transmit power information of the service frequency point provides energy of the NRS on each resource unit, and when the UE is assigned to the service frequency point, the UE performs: RSRP measurement, and/or, Road loss calculation.
  • the NRS transmit power information corresponding to the service frequency point may be characterized by a deviation from the Anchor frequency NRS power, or the NRS transmit power information corresponding to the service frequency point may pass the service frequency point NRS power. Absolute value to characterize.
  • the UE determines the wireless coverage level at which the UE is located:
  • the wireless coverage level is obtained by comparing the narrowband reference signal received power NRSRP value of the Anchor carrier measured by the UE with the wireless coverage level threshold;
  • the wireless coverage level is obtained by comparing the narrowband reference signal received power NRSRP value of the Anchor carrier measured by the UE with a predefined offset value and the wireless coverage level threshold.
  • the predefined offset value may be: a power difference of the Non-anchor carrier NRS power relative to the Anchor carrier NRS power.
  • the specific method for determining the radio coverage level of the UE according to the carrier type of the UE is: for the initial PRACH procedure residing on the Anchor carrier: after receiving the broadcast message, the UE acquires the radio coverage level NRSRP threshold [threshold 0, threshold 1]: The wireless coverage level NRSRP threshold is compared with the current NRSRP measurement value to perform wireless coverage level determination: the coverage of the NRSRP value greater than or equal to the threshold 0 is the coverage level 0; the NRSRP value is less than the threshold 0, and is greater than or equal to the threshold 1 The coverage is coverage level 1; the coverage with the NRSRP value less than the threshold 1 is coverage level 2.
  • the UE obtains the radio coverage level RSRP threshold [threshold 0, threshold 1]: adopts the "radio coverage level RSRP threshold” and the current RSRP measurement value + “Non-anchor carrier NRS power relative to Anchor carrier NRS power power deviation” comparison to perform wireless coverage level decision: RSRP value + "Non-anchor carrier NRS power relative to Anchor carrier NRS power deviation" is greater than or equal to the threshold
  • the coverage of 0" is the coverage level 0;
  • the RSRP value + “the power deviation of the Non-anchor carrier NRS power relative to the Anchor carrier NRS power” is less than the "threshold 0", and the coverage greater than or equal to the "threshold 1" is the coverage level 1;
  • the coverage of the RSRP value + “the power deviation of the Non-anchor carrier NRS power with respect to the Anchor carrier NRS power” is less than the "threshold 1" is the coverage level 2.
  • the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation.
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, CD-ROM, including a number of instructions to make a terminal device (can be a mobile phone, a computer, The server, or network device, etc.) performs the methods described in various embodiments of the present invention.
  • a frequency point selection device is also provided, which is located in the user equipment UE, and is used to implement the foregoing embodiments and preferred embodiments, and details are not described herein.
  • the term “module” may implement a combination of software and/or hardware of a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • the apparatus includes: a first determining module 22, configured to determine whether to receive information of a service frequency point sent by a base station, where The frequency of the service is the frequency of the bearer service selected by the base station in the case that the target cell carrying the UE is a multi-frequency cell; the resident module 24 is set to be determined by the first determining module 22 If the result is yes, it stays at the frequency corresponding to the information of the service frequency point; or if the judgment result is no, it stays at the original frequency.
  • a first determining module 22 configured to determine whether to receive information of a service frequency point sent by a base station, where The frequency of the service is the frequency of the bearer service selected by the base station in the case that the target cell carrying the UE is a multi-frequency cell
  • the resident module 24 is set to be determined by the first determining module 22 If the result is yes, it stays at the frequency corresponding to the information of the service frequency point; or if the judgment result is no, it stays at the original frequency.
  • FIG. 3 is a flowchart of another frequency point selection method according to an embodiment of the present invention. As shown in FIG. 3, the flow includes the following steps:
  • Step S302 the base station determines whether the target cell carrying the UE is a multi-frequency point cell
  • Step S304 If yes, the base station sends the information of the service frequency point to the UE, where the service frequency point is a frequency point of the bearer service selected by the base station for the UE.
  • the base station sends the information of the service frequency point to the UE when the target cell that carries the UE is a multi-frequency point cell, where the service frequency point is the bearer service selected by the base station for the UE.
  • the frequency point so that the UE can select the corresponding frequency point to transmit and receive data by receiving the information of the frequency point, so that the frequency of the UE camping can be the frequency of the bearer service actively selected by the base station, and the related technology is solved.
  • the service frequency selection strategy in the service is passive selection, lacking the initiative problem, and technically gives the basis for realizing the load balance of the frequency of the bearer service, and further to the NB-IoT system based on small data transmission. Said to improve system efficiency.
  • the UE may send the information of the multi-frequency cell support capability of the UE to the base station by using an RRC connection request, or an RRC connection re-establishment request, or an RRC connection re-establishment request, in this case, in the foregoing step S302.
  • the base station receives an RRC connection request, or an RRC connection recovery request, or an RRC connection re-establishment request of the UE.
  • the base station may carry the information of the selected service frequency point in the RRC connection setup message and send the information to the UE; or the base station may carry the information of the service frequency point in the RRC connection recovery.
  • the base station may carry the information of the service frequency point in an RRC connection re-establishment message and send the information to the UE; or the base station may send information about the service frequency point
  • the bearer is sent to the UE in an RRC connection reconfiguration message.
  • the sending, by the base station, the information of the service frequency point to the UE includes: sending, by the base station, the NRS transmit power information of the service frequency point to the UE in the related message.
  • the NRS transmit power information corresponding to the service frequency point provides energy of the NRS on each resource unit, and is used by the UE to perform: RSRP measurement, and/or path loss calculation.
  • the NRS transmit power information of the service frequency point may be characterized by a deviation from the Anchor frequency NRS power, or the NRS transmit power information of the service frequency point may pass the absolute value of the service frequency NRS power. To characterize.
  • the base station may acquire the multi-frequency point support capability information of the UE from the received RRC connection request, or the RRC connection re-establishment request, or the RRC connection re-establishment request, where The multi-frequency point support capability information of the UE is used to indicate whether the UE supports the multi-frequency point function.
  • the base station may select a multi-frequency point cell for the UE supporting the multi-frequency point function.
  • the service frequency points and the service frequency point information are configured; the UE supporting the multi-frequency point function can receive the service frequency point information configured by the base station.
  • the UE may be camped on a frequency point carrying a broadcast channel.
  • the specific implementation can be as follows:
  • the UE can only detect the frequency of the broadcast channel, so it can only choose to stay on the frequency of the bearer broadcast channel;
  • the cell When the cell is reselected: it is implemented by a broadcast information configuration policy.
  • the broadcast information When the broadcast information is configured, the neighboring frequency point is based on the frequency of the broadcast channel. In this way, when the UE reselects, it will naturally reselect to the frequency point that carries the broadcast channel.
  • the base station carries the information of the service frequency point (also referred to as a redirection cell) in the sent RRC release message or the RRC connection suspension message
  • the information of the service frequency point only fills in the frequency of the bearer broadcast channel.
  • Point corresponding information such that the UE will reside on the frequency band carrying the broadcast channel; if the base station does not carry the information of the service frequency point (redirect cell) in the RRC release message or the RRC connection suspension message
  • the UE automatically camps on the frequency of the current cell carrying the broadcast channel and the synchronization channel.
  • the RRC release message or the RRC connection suspension message may carry the frequency point information of the bearer broadcast channel, and guide the UE to camp on the frequency of the bearer broadcast channel; or carry the bearer in the RRC connection setup or RRC recovery complete message.
  • the frequency of the broadcast channel, but the RRC release message or the RRC connection suspension message does not carry the frequency point information of the bearer broadcast channel, and the UE automatically camps on the RRC connection setup or the RRC recovery complete message when the RRC release or the RRC connection is suspended.
  • the frequency of the bearer broadcast channel is carried; or the frequency of the bearer broadcast channel is not carried in the RRC connection setup or RRC recovery complete message, and the frequency of the bearer broadcast channel is not carried in the RRC release message or the RRC connection suspension message.
  • Point information the UE automatically camps on the frequency of receiving the broadcast in the last IDLE mode when the RRC is released or the RRC connection is suspended.
  • the frequency of the bearer broadcast channel in the cell may be obtained by using SIB information or RRC signaling.
  • the base station when the base station sends the information of the service frequency to the UE, the base station performs a subsequent process on the UE at the service frequency; otherwise, the base station The subsequent process of the UE is performed at the current camping frequency.
  • the subsequent process performed by the base station on the UE may include all processes of the UE in the current connection mode, such as data transmission and reception in the current connection mode, signaling in the current connection mode, and current connection mode. Random access process, etc.
  • the method further includes: sending, by the base station, the system message block SIB, or an RRC connection setup message, or an RRC connection re-establishment message, or an RRC connection re-establishment message, or an RRC connection reconfiguration message to the UE Service frequency Point NRS transmit power information.
  • the NRS transmit power information of the service frequency point provides energy of the narrowband reference signal NRS on each resource unit, and when the UE is assigned to the service frequency point, the UE performs reference signal receive power RSRP Measurement and / or path loss calculation.
  • the NRS transmit power information of the service frequency point may be characterized by a deviation from the Anchor frequency NRS power, or the NRS transmit power information of the service frequency point may pass the absolute value of the service frequency NRS power. To characterize.
  • the base station may further broadcast a random access parameter to the UE, where the random access parameter may be applicable to all frequency points in the cell.
  • FIG. 4 is a structural block diagram of another frequency point selecting device according to an embodiment of the present invention.
  • the device includes: The second determining module 42 is configured to determine whether the target cell carrying the user equipment UE is a multi-frequency point cell, and the first sending module 44 is configured to send the service frequency if the judgment result of the second determining module 42 is yes. Point information to the UE, where the service frequency is a frequency point of the bearer service selected by the base station for the UE.
  • FIG. 5 is a flowchart of still another frequency point selection method according to an embodiment of the present invention. As shown in FIG. 5, the method includes:
  • step S502 the UE determines whether the paging frequency list is carried in the broadcast information of the multi-frequency cell, and/or the number of paging frequency points, where the paging frequency list includes a paging message for carrying the paging message. Frequency point; the number of paging frequency points is used to determine a paging frequency point list.
  • Step S504 If yes, the UE selects a frequency point in the paging frequency point list as a frequency point for receiving paging and/or bearer service according to a preset rule.
  • the base station carries the paging frequency point list and/or the paging frequency point number in the broadcast information of the multi-frequency point cell, wherein the paging frequency point number is used to determine the paging frequency point list.
  • the paging frequency point list includes a frequency point for carrying a paging message, and the UE selects a frequency point in the paging frequency point list as a frequency point for receiving a paging and/or bearer service according to a preset rule, thereby
  • the frequency of the UE may be a frequency selected by the base station, which solves the problem that the service frequency selection strategy in the related art is passive selection, lacks initiative, and technically achieves load balancing on the frequency point.
  • the foundation further enhances system efficiency for the NB-IoT system, which is based on small data transmission.
  • the UE may perform the subsequent service flow on the specified service frequency point information according to the foregoing method; if the UE does not receive the foregoing
  • the service frequency point may be selected according to the preset rule given in the embodiment, and the subsequent service flow is performed on the service frequency point.
  • the UE may identify a frequency point index corresponding to the number of frequency points of the UE (ID) and the paging message (Paging).
  • the UE may obtain the frequency point index corresponding to the frequency point of the received paging and/or bearer service according to the preset rule, and determine the frequency of the corresponding received paging and/or bearer service according to the frequency point index. point.
  • the frequency point index may be obtained by the UE according to the identifier of the UE and the number of frequency points carrying the paging message. Or you can get the frequency or frequency index by other similar strategies.
  • the frequency point list carrying the paging message (Paging) may also be a list of all frequency points of the multi-frequency point cell. At this time, it indicates that all frequency points can carry the paging message.
  • the UE can monitor the frequency of the bearer broadcast channel and the frequency of carrying the paging message by using the frequency hopping method.
  • the UE monitors the frequency of carrying the paging message at the paging occasion (Paging Occasion) and the subsequent paging message receiving phase; at other times, the UE can monitor the frequency of the bearer broadcast channel to receive the system broadcast and maintain the network. Synchronization.
  • FIG. 6 is a structural block diagram of another frequency point selection device 1 according to an embodiment of the present invention.
  • the device includes:
  • the third determining module 62 is configured to determine whether the paging frequency list carried in the broadcast information of the multi-frequency cell, and/or the number of paging frequency points, where the paging frequency list includes a frequency of the paging message; the number of paging frequency points is used by the UE to determine a paging frequency point list; and the selecting module 64 is configured to, according to the preset result of the third determining module 62, a preset The rule selects a frequency point in the paging frequency list as a frequency point for receiving paging and/or bearer services.
  • FIG. 7 is a flowchart of another frequency point selection method 2 according to an embodiment of the present invention. As shown in FIG. 7, the method includes:
  • Step S702 the base station determines a paging frequency point list, and/or a paging frequency point number.
  • the paging frequency point list includes a frequency point for carrying a paging message, where the paging frequency point list is used by the UE to select a frequency point in the paging frequency point list according to a preset rule.
  • the frequency of the call and/or bearer service; the number of paging frequency points is used to determine the paging frequency list.
  • Step S704 the base station carries the paging frequency point list and/or the paging frequency point number in the broadcast information of the multi-frequency point cell.
  • the base station carries the paging frequency point list and/or the paging frequency point number in the broadcast information of the multi-frequency point cell, wherein the paging frequency point number is used to determine the paging frequency point list.
  • the UE selects a frequency point in the paging frequency point list as a frequency point for receiving a paging and/or bearer service according to a preset rule, so that the frequency point of the UE may be a frequency point actively selected by the base station, and the related technology is solved.
  • the service frequency selection strategy in the middle is passive selection, lacking the initiative problem, and technically gives the basis for realizing load balancing on the frequency point, and further improves the NB-IoT system based on small data transmission. System efficiency.
  • the UE may perform the subsequent service flow on the specified service frequency point information according to the foregoing method; if the UE does not receive the foregoing
  • the service frequency point may be selected according to the preset rule given in the embodiment, and the subsequent service flow is performed on the service frequency point.
  • FIG. 8 is a structural block diagram of another frequency point selection device 2 according to an embodiment of the present invention.
  • the device includes: a determining module 82, configured to determine a paging frequency point list, and/or a paging frequency point number, wherein the paging frequency point list includes a frequency point for carrying a paging message, the paging frequency
  • the point list is used by the UE to select a frequency point in the paging frequency point list as a frequency point for receiving paging and/or bearer services according to a preset rule; the number of paging frequency points is used by the UE to determine a paging frequency point.
  • List second sending module 84, set to The paging frequency list and/or the paging frequency number are carried in the broadcast information of the multi-frequency cell.
  • FIG. 9 is a flowchart of still another frequency point selection method according to an embodiment of the present invention. As shown in FIG. 9, the method includes:
  • Step S902 The UE acquires a frequency point for carrying paging information and/or bearer service by using a physical downlink control channel (Physical Downlink Control Channel, PDCCH for short) that carries paging indication information.
  • PDCCH Physical Downlink Control Channel
  • Step S904 the UE performs subsequent paging information and/or transmission of the service at the frequency point.
  • the base station carries the frequency of carrying the paging information and/or the bearer service in the PDCCH carrying the paging indication information, and the UE obtains the frequency of carrying the paging information and/or the bearer service by using the PDCCH carrying the paging indication information.
  • Point and carry out subsequent paging information and/or transmission of services so that the frequency point of the UE may be a frequency point actively selected by the base station, and the service frequency selection strategy in the related art is passively selected, and the initiative is lacking.
  • the problem is technically given the basis for achieving load balancing on the frequency point, and further improves the system efficiency for the NB-IoT system based on small data transmission.
  • the UE can receive the frequency point list of the frequency information of the paging message information and/or the service in the multi-frequency point cell by broadcasting, and obtain the bearer search through the PDCCH.
  • the corresponding frequency point is obtained by a combination of the frequency point list and the index.
  • the UE may obtain, by using downlink control information (Downlink Control Information, DCI for short), an index of the frequency of the bearer paging information and/or the bearer service in the frequency point list in the PDCCH.
  • DCI Downlink Control Information
  • FIG. 10 is a structural block diagram of a frequency point selection device 1 according to an embodiment of the present invention. As shown in FIG. 10, the device includes: acquiring The module 102 is configured to acquire a frequency point carrying the paging information and/or the bearer service by using the PDCCH carrying the paging indication information, and the transmitting module 104 is configured to perform subsequent paging information and/or service on the frequency point. Transmission.
  • the module 102 is configured to acquire a frequency point carrying the paging information and/or the bearer service by using the PDCCH carrying the paging indication information
  • the transmitting module 104 is configured to perform subsequent paging information and/or service on the frequency point. Transmission.
  • FIG. 11 is a flowchart of a frequency selection method 2 according to an embodiment of the present invention. As shown in FIG. 11, the method includes:
  • Step S1102 The base station determines a frequency point for carrying paging information and/or bearer service.
  • Step S1104 The base station indicates, by using a PDCCH carrying paging indication information, a frequency point of carrying paging information and/or bearer service, where the frequency point is used by the UE to perform subsequent paging on the frequency point. Transmission of information and/or services.
  • the base station carries the frequency of carrying the paging information and/or the bearer service in the PDCCH carrying the paging indication information, and the UE obtains the frequency of carrying the paging information and/or the bearer service by using the PDCCH carrying the paging indication information.
  • Point and carry out subsequent paging information and/or transmission of services so that the frequency point of the UE may be a frequency point actively selected by the base station, and the service frequency selection strategy in the related art is passively selected, and the initiative is lacking.
  • the problem is technically given the basis for achieving load balancing on the frequency point, and further improves the system efficiency for the NB-IoT system based on small data transmission.
  • the base station may send, by means of broadcast, a frequency point list of frequency points carrying paging message information and/or services in the multi-frequency point cell to the UE, and Carrying through the PDCCH The index of the frequency point carrying the paging message information and/or the service in the frequency point list.
  • the base station may carry, by using the DCI, an index of the frequency information of the bearer paging message information and/or the service in the frequency point list in the PDCCH.
  • FIG. 12 is a structural block diagram of a frequency point selecting device 2 according to an embodiment of the present invention.
  • the device includes:
  • the determining module 122 is configured to determine a frequency point of carrying the paging information and/or the bearer service.
  • the third sending module 124 is configured to indicate to the UE by the PDCCH carrying the paging indication information that the paging information and/or the bearer service are carried. And a frequency point, where the frequency point is used by the UE to perform subsequent paging information and/or service transmission at the frequency point.
  • FIG. 26 is a flowchart of a frequency selection method 3 according to an embodiment of the present invention. As shown in FIG. 26, the method includes:
  • Step S2602 The UE determines whether the broadcast frequency information of the multi-frequency point cell carries the service frequency point list, where the service frequency point list includes a frequency point for carrying the service;
  • Step S2604 If yes, the UE selects a frequency point in the service frequency point list according to a preset rule as a frequency point for the UE to initiate a service request.
  • the base station carries the service frequency point list in the broadcast information, and the UE selects the service frequency point according to the pre-defined rule according to the service frequency point list in the broadcast information and initiates the service request according to the service access request triggered by the UE in the multi-frequency point cell. Therefore, the frequency point of the UE may be a frequency point actively selected by the base station, which solves the problem that the service frequency selection strategy in the related art is passive selection, lacks initiative, and technically realizes the frequency of implementing the bearer service.
  • the basis of point load balancing further enhances system efficiency for NB-IoT systems based on small data transmission.
  • the UE may perform the subsequent service flow on the specified service frequency point information according to the foregoing method; if the UE does not receive the foregoing
  • the service frequency point may be selected according to the preset rule given in the embodiment, and the subsequent service flow is performed on the service frequency point.
  • the UE monitors a frequency point carrying the broadcast channel and receives broadcast information, where the broadcast information carries a list of frequency points that can carry the service message.
  • the UE selects one of the frequency points as a frequency point of the bearer service according to the predefined rule to initiate a random access request, and performs subsequent service transmission and reception on the frequency point.
  • the predefined rule may be determining the service frequency point by using the UE ID and the number of service frequency points, or other similar methods.
  • step S2604 the UE acquires a frequency point index of a frequency point that the UE actively initiates a service request according to the preset rule, and determines, according to the frequency point index, a frequency point that the corresponding UE actively initiates a service request. .
  • the UE obtains the frequency index according to the identifier of the UE and the frequency of the frequency of the frequency at which the UE initiates a service request.
  • FIG. 27 is a flowchart of still another frequency point selection method 4 according to an embodiment of the present invention. As shown in FIG.
  • Step S2702 The base station determines a service frequency point list, where the service frequency point list includes a frequency point for carrying a service, and the service frequency point list is used by the user equipment UE according to a preset rule in the service frequency point list. Select a frequency point as the frequency of initiating a service request;
  • Step S2704 The base station carries the service frequency point list in the broadcast information of the multi-frequency point cell.
  • the UE may perform the subsequent service flow on the specified service frequency point information according to the foregoing method; if the UE does not receive the foregoing
  • the service frequency point may be selected according to the preset rule given in the embodiment, and the subsequent service flow is performed on the service frequency point.
  • the eNodeB When the eNodeB receives the RRC connection request or the RRC connection recovery request, if the target cell carrying the UE is a multi-frequency cell, the eNodeB selects a frequency of the bearer service according to the load condition in the cell, and selects the service.
  • the frequency point information is carried in the RRC connection setup message or the RRC connection recovery message and sent to the UE.
  • the UE After the UE receives the RRC connection setup message or the RRC connection recovery message, if the message carries the service frequency information, the UE subsequently receives and transmits the data at the service frequency; if the service frequency is not carried, the original station Subsequent service reception and transmission at the frequency reservation point.
  • the UE in the IDLE mode, the UE resides on a frequency point carrying the broadcast channel, and the implementation manner is as follows:
  • the UE can only detect the frequency of the broadcast channel, so it can only choose to stay at the frequency of the bearer broadcast channel;
  • the cell When the cell is reselected: it is implemented by a broadcast information configuration policy.
  • the broadcast information When the broadcast information is configured, the neighboring frequency point is based on the frequency of the broadcast channel. In this way, when the UE reselects, it will naturally reselect to the frequency point that carries the broadcast channel.
  • the designated UE resides on the frequency point of the bearer broadcast channel.
  • the specific implementation is as follows: if the RRC release message or the RRC connection suspension message carries the redirection cell, the frequency information in the redirection cell can only fill in the frequency of the bearer broadcast channel, so that the UE resides in the UE. If the RRC release message or the RRC connection suspension message does not carry the redirection cell, the UE automatically camps on the frequency point of the current cell bearer broadcast channel and the synchronization channel. Further, the frequency of the bearer broadcast channel in the cell may be obtained by using SIB information or RRC signaling.
  • the technical problem that can be solved is to propose a method and device for load balancing between frequency points in a multi-frequency point cell, which can realize load balancing between frequency points in a multi-frequency point cell.
  • the cell includes five frequency points:
  • the first frequency point can be used as the camping frequency point of the idle mode: a broadcast channel (PBCH), a synchronization channel (PSS/SSS), a cell reference channel (CRS), a traffic channel (PDCCH/PDSCH), and a second,
  • PBCH broadcast channel
  • PSS/SSS synchronization channel
  • CRS cell reference channel
  • PDCCH/PDSCH traffic channel
  • the three, four, and five frequency points can only be used as the service bearer frequency, so only the cell reference channel (CRS) and the traffic channel (PDCCH/PDSCH) are configured.
  • Figure 13 is a flow chart according to a first embodiment of the present invention. In this embodiment, a load balancing process between frequency points in a multi-frequency point cell during RRC connection establishment is described.
  • Step 1301 The UE sends a random access preamble to the frequency point 1 of the cell;
  • Step 1302 Frequency point 1 sends a random access response to the UE.
  • Step 1303 The UE sends an RRC connection setup request to the frequency point 1 of the cell, where the UE includes multi-frequency point support capability information of the UE, and/or an NRSRP value.
  • Step 1304 The base station of the cell performs service frequency selection.
  • Step 1305 The frequency point 1 sends an RRC connection setup message to the UE, where the frequency point information of the traffic channel is included in the RRC connection setup message is frequency point 2; optionally: the NRS transmit power information of the frequency point 2;
  • the NRS transmit power information of the frequency point 2 may be an absolute value of the NRS transmit power of the frequency point 2 (the parameter value unit is dBm), or may be a relative value of the transmit power relative to the Anchor frequency (frequency point 1). (The parameter value is in dB or %).
  • the NRS transmit power information of the frequency point 2 provides an energy (Energy Per Resource Element, EPRE) of the NRS of the frequency point 2, when the UE is assigned to the frequency point 2,
  • EPRE Energy Per Resource Element
  • Step 1306 The frequency point 2 sends an uplink grant to the UE on the PDCCH.
  • Step 1307 The UE sends an RRC connection setup complete message to the frequency point 2;
  • Step 1308 The UE performs uplink and downlink data transmission on the frequency point 2.
  • Figure 14 is a flow chart according to a second embodiment of the present invention. In this embodiment, a load balancing process between intra-frequency points in a multi-frequency point cell during RRC connection recovery is described.
  • Step 1401 The UE sends a random access preamble to the frequency point 1 of the cell;
  • Step 1402 Frequency point 1 sends a random access response to the UE.
  • Step 1403 The UE sends an RRC connection recovery request to the frequency point 1 of the cell, where the UE includes multi-frequency point support capability information of the UE, and/or an NRSRP value.
  • Step 1404 The base station of the cell performs service frequency selection.
  • Step 1405 The frequency point 1 sends an RRC connection recovery message to the UE, where the frequency point information of the traffic channel is included in the RRC connection recovery message is frequency point 2; optionally: the NRS transmission power information of the frequency point 2;
  • the NRS transmit power information of the frequency point 2 may be an absolute value of the NRS transmit power of the frequency point 2 (the parameter value unit is dBm), or may be a relative value of the transmit power relative to the Anchor frequency (frequency point 1). (The parameter value is in dB or %)
  • the NRS transmit power information of the frequency point 2 provides the energy of the NRS of the frequency point 2 on each resource unit, and when the UE is assigned to the frequency point 2, the UE performs: RSRP measurement, And / or, road loss calculation.
  • Step 1406 The frequency point 2 sends an uplink grant to the UE on the PDCCH.
  • Step 1407 The UE performs uplink and downlink data transmission on the frequency point 2.
  • the message that the frequency point information of the traffic channel is transmitted to the UE may also be an RRC connection re-establishment message or an RRC connection reconfiguration message.
  • the implementation process is similar to that in the first embodiment and the second embodiment, and is not described herein again.
  • Figure 15 is a flow chart of a third embodiment of the present invention. This embodiment describes a load balancing process of other cells to a multi-frequency cell when the RRC connection is established.
  • Step 1501 The UE sends a random access preamble to the frequency point 1 of the cell 1;
  • Step 1502 The frequency point 1 of the cell 1 sends a random access response to the UE.
  • Step 1503 The UE sends an RRC connection request to the frequency point 1 of the cell 1, where the UE includes multi-frequency point support capability information, and/or an NRSRP value.
  • Step 1504 The base station of the cell performs load balancing.
  • Step 1505 The frequency point 1 of the cell 1 sends an RRC connection setup message to the UE, where the RRC connection setup message includes the service carrier information of the cell 2, the physical cell identifier, and the frequency point information of the traffic channel is the frequency point 2;
  • the ground includes: NRS transmission power information of frequency point 2;
  • the NRS transmit power information of the frequency point 2 is the absolute value of the NRS transmit power of the frequency point 2 (the parameter value is in dBm).
  • the NRS transmit power information of the frequency point 2 provides the energy of the NRS of the frequency point 2 on each resource unit, and when the UE is assigned to the frequency point 2, the UE performs: RSRP measurement, And / or, road loss calculation.
  • Step 1506 The frequency point 2 of the cell 2 sends an uplink grant to the UE on the PDCCH.
  • Step 1507 The UE performs uplink and downlink data transmission on the frequency point 2 of the cell 2.
  • Figure 16 is a flow chart of a fourth embodiment of the present invention. This embodiment describes a load balancing process of other cells to a multi-frequency cell when the RRC connection is restored.
  • Step 1601 The UE sends a random access preamble to the frequency point 1 of the cell 1;
  • Step 1602 The frequency point 1 of the cell 1 sends a random access response to the UE.
  • Step 1603 The UE sends an RRC connection recovery request to the frequency point 1 of the cell 1, where the UE includes multi-frequency point support capability information, and/or an NRSRP value.
  • Step 1604 The base station of the cell performs load balancing.
  • Step 1605 The frequency point 1 of the cell 1 sends an RRC connection recovery message to the UE, where the RRC connection recovery message includes the service carrier information of the cell 2, the physical cell identifier, and the frequency point information of the service channel is the frequency point 2;
  • the ground includes: NRS transmission power information of frequency point 2;
  • the NRS transmit power information of the frequency point 2 is the absolute value of the NRS transmit power of the frequency point 2 (the parameter value is in dBm).
  • the NRS transmit power information of the frequency point 2 provides the energy of the NRS of the frequency point 2 on each resource unit, and when the UE is assigned to the frequency point 2, the UE performs: RSRP measurement, And / or, road loss calculation.
  • Step 1606 The frequency point 2 of the cell 2 sends an uplink grant to the UE on the PDCCH.
  • Step 1607 The UE sends an RRC setup complete message to the frequency point 2 of the cell 2;
  • Step 1608 The UE performs uplink and downlink data transmission on the frequency point 2 of the cell 2.
  • the message that the frequency point information of the traffic channel is transmitted to the UE may also be an RRC connection re-establishment message or an RRC connection reconfiguration message.
  • the implementation process is similar to that in the first embodiment and the second embodiment, and is not described herein again.
  • FIG 17 is a flow chart in accordance with a fifth embodiment of the present invention.
  • a load balancing process between intra-frequency points of a multi-frequency point cell that triggers RRC establishment when the eNodeB cannot find the UE context when the RRC connection is restored is described.
  • Step 1701 The UE sends a random access preamble to the frequency point 1 of the cell;
  • Step 1702 Frequency point 1 sends a random access response to the UE.
  • Step 1703 The UE sends an RRC connection request to the frequency point 1 of the cell, where the UE includes multi-frequency point support capability information of the UE, and/or an NRSRP value.
  • Step 1704 The base station of the cell performs service frequency selection.
  • Step 1705 The frequency point 1 sends an RRC connection setup message to the UE, where the frequency point information including the traffic channel in the RRC connection setup message is the frequency point 2; optionally, the NRS transmit power information of the frequency point 2;
  • the NRS transmit power information of the frequency point 2 may be an absolute value of the NRS transmit power of the frequency point 2 (the parameter value unit is dBm), or may be a relative value of the transmit power relative to the Anchor frequency (frequency point 1). (The parameter value is in dB or %).
  • the NRS transmit power information of the frequency point 2 provides the energy of the NRS of the frequency point 2 on each resource unit, when the UE is assigned to the frequency point 2, the UE performs: RSRP measurement, and / or, road loss calculation.
  • Step 1706 The frequency point 2 sends an uplink grant to the UE on the PDCCH.
  • Step 1707 The UE sends an RRC connection setup complete message to the frequency point 2;
  • Step 1708 The UE performs uplink and downlink data transmission on the frequency point 2.
  • Figure 18 is a flow chart showing a sixth embodiment of the present invention.
  • the eNodeB when the RRC connection is restored, the eNodeB cannot find the UE context, triggers the RRC establishment, and simultaneously performs the load balancing process between the intra-frequency points of other multi-frequency point cells.
  • Step 1801 The UE sends a random access preamble to the frequency point 1 of the cell 1;
  • Step 1802 The frequency point 1 of the cell 1 sends a random access response to the UE.
  • Step 1803 The UE sends an RRC connection request to the frequency point 1 of the cell 1, where the UE includes multi-frequency point support capability information, and/or an NRSRP value.
  • Step 1804 The base station of the cell performs load balancing.
  • Step 1805 The frequency point 1 of the cell 1 sends an RRC connection setup message to the UE, where the RRC connection setup message includes the service carrier information of the cell 2, the physical cell identifier, and the frequency point information of the traffic channel is the frequency point 2; optionally Including: NRS transmission power information of frequency point 2;
  • the NRS transmit power information of the frequency point 2 may be an absolute value of the NRS transmit power of the frequency point 2 (the parameter value is in dBm).
  • the NRS transmit power information of the frequency point 2 provides the energy of the NRS of the frequency point 2 on each resource unit, and when the UE is assigned to the frequency point 2, the UE performs: RSRP measurement, And / or, road loss calculation.
  • Step 1806 The frequency point 2 of the cell 2 sends an uplink grant to the UE on the PDCCH.
  • Step 1807 The UE sends an RRC setup complete message to the frequency point 2 of the cell 2;
  • Step 1808 The UE performs uplink and downlink data transmission on the frequency point 2 of the cell 2.
  • the message that the frequency point information of the traffic channel is transmitted to the UE may also be an RRC connection re-establishment message or an RRC connection reconfiguration message.
  • the implementation process is similar to that in the first embodiment and the second embodiment, and is not described herein again.
  • Figure 19 is a flow chart of a seventh embodiment of the present invention. This embodiment describes a procedure for guiding a UE to camp on a frequency point carrying a broadcast channel, where the RRC release message or the RRC connection suspension message carries the frequency point information of the bearer broadcast channel.
  • Step 1901 the frequency point 2 sends an RRC connection release or an RRC connection suspension message to the UE, where the message carries the frequency point 1 information carrying the broadcast channel;
  • step 1902 the UE enters an idle mode and camps on the frequency point 1.
  • Figure 20 is a flow chart of an eighth embodiment of the present invention.
  • the frequency of the bearer broadcast channel is carried in the RRC connection setup or RRC recovery complete message, but the RRC release message or the RRC connection suspension message does not carry the frequency information of the bearer broadcast channel, and the UE is released in RRC or RRC.
  • the process of automatically camping on the frequency of the bearer broadcast channel carried in the RRC connection setup or RRC recovery complete message when the connection is suspended is described.
  • the frequency point 2 sends an RRC connection setup or an RRC connection recovery message to the UE, where the message carries the frequency point 1 information carrying the broadcast channel;
  • step 2002 the frequency point 2 sends an RRC connection release or an RRC connection suspension message to the UE, where the message does not carry the frequency point 1 information carrying the broadcast channel;
  • step 2003 the UE enters an idle mode and camps on the frequency point 1.
  • Figure 21 is a flow chart of a ninth embodiment of the present invention.
  • the frequency point of the bearer broadcast channel is not carried in the RRC connection setup or the RRC recovery complete message, and the frequency point information of the bearer broadcast channel is not carried in the RRC release message or the RRC connection suspension message, and the UE is in the RRC.
  • the process of automatically residing to the frequency point where the last IDLE mode resides when the release or RRC connection is suspended is explained.
  • Step 2101 The frequency point 1 sends a broadcast message.
  • Step 2102 The frequency point 2 and the UE perform uplink and downlink data transmission;
  • Step 2103 The frequency point 2 sends an RRC connection release or an RRC connection suspension message to the UE, where the message does not carry the frequency point 1 information carrying the broadcast channel;
  • step 2104 the UE enters an idle mode and camps on the frequency point 1.
  • Figure 22 is a flow chart of a tenth embodiment of the present invention.
  • the UE carries a frequency list that can carry a paging message (Paging) in the broadcast information of the multi-frequency cell, and the UE selects one of the frequency points according to a predefined rule as the frequency of receiving the paging and/or bearer service. The process of the point is explained.
  • Paging paging message
  • Step 2201 The frequency point 1 sends a broadcast message to the UE1, where the message carries a list of frequency points that can carry paging message (Paging) information;
  • Step 2202 the frequency point 1 sends a broadcast message to the UE2, where the message carries a list of frequency points that can carry paging message (Paging) information;
  • Step 2203 The UE1 determines, by using a predefined rule, that the frequency point 2 carries the paging and service information of the UE, and the cell initiates paging to the UE1 by using the frequency point 2;
  • Step 2204 the frequency point 2 and the UE1 perform data communication in the connection mode
  • Step 2205 The UE2 determines, by using a predefined rule, that the frequency point 3 carries the paging and service information of the UE, and the cell initiates paging to the UE2 by using the frequency point 3;
  • Step 2206 the frequency point 3 and the UE2 perform data communication in the connection mode.
  • the predefined rule may be a frequency index corresponding to the UE ID and the number of frequency points carrying the paging message (Paging), or other similar policies.
  • the frequency point list carrying the paging message may also be a list of all frequency points of the multi-frequency point cell. At this time, it indicates that all frequency points can carry the paging message.
  • the UE can monitor the frequency of the bearer broadcast channel and the frequency of carrying the paging message by using the frequency hopping method.
  • the UE monitors the frequency of carrying the paging message at the paging occasion (Paging Occasion) and the subsequent paging message receiving phase; at other times, the frequency of the broadcast channel is monitored to receive the system broadcast and maintain synchronization with the network. .
  • FIG. 23 is a flow chart showing an eleventh embodiment of the present invention.
  • a procedure for transmitting a PDCCH carrying paging indication information (P-TMSI or the like) of a multi-frequency cell to a frequency point carrying a broadcast channel will be described.
  • the PDCCH carrying the paging indication information (P-TMSI or the like) indicates the frequency of the subsequent paging information and/or the bearer service, and the UE indicates Subsequent paging information and/or service transmission and reception are performed at the frequency.
  • Step 2301 the frequency point 1 sends a PDCCH to the UE1, and carries the paging indication information in the PDCCH, to specify the service frequency of the UE as the frequency point 2;
  • Step 2302 the frequency point 2 and the UE1 perform data communication in the connection mode
  • Step 2303 the frequency point 1 sends a PDCCH to the UE2, and carries the paging indication information in the PDCCH, to specify the service frequency of the UE as the frequency point 3;
  • Step 2304 the frequency point 3 and the UE2 perform data communication in the connection mode.
  • Figure 24 is a flow chart of a twelve embodiment of the present invention. In this embodiment, a frequency selection process when a service access request triggered by a UE in a multi-frequency cell is described is described.
  • Step 2401 the UE2 monitors the frequency point 1 of the bearer broadcast channel and receives the broadcast information, where the broadcast information carries a list of frequency points that can carry the service information.
  • Step 2402 the UE1 monitors the frequency point 1 of the bearer broadcast channel and receives the broadcast information, where the broadcast information carries a list of frequency points that can carry the service information.
  • Step 2403 the UE1 selects one of the frequency points 2 as a frequency point of the service information according to a predefined rule to initiate a random access request (Msg1 PRACH Preamble);
  • Step 2404 the UE1 performs data communication in the subsequent connection mode on the frequency point 2;
  • Step 2405 the UE2 selects one of the frequency points 3 as a frequency point of the service information according to a predefined rule to initiate a random access request (Msg1 PRACH Preamble);
  • step 2406 the UE2 performs data communication in the subsequent connection mode on the frequency point 3.
  • the predefined rule may be determining the service frequency point by using the UE ID and the number of service frequency points, or other similar methods.
  • Figure 25 is a flow chart of a thirteenth embodiment of the present invention. This embodiment describes a method for the eNodeB to transmit the NRS transmission power of the service carrier to the UE through the system message block.
  • the eNodeB sends a broadcast message to the UE, which includes two cells:
  • NRS transmit power used to indicate the NRS transmit power of the Anchor carrier
  • the NRS transmission power of the Non-Anchor carrier is used to indicate the NRS transmission power of the Non-Anchor carrier.
  • the NRS transmit power of the Non-Anchor carrier may be an absolute value of the transmit power, for example, the value range is (-60. . .50) dBm.
  • the NRS transmit power of the Non-Anchor carrier may also be an absolute value of the NRS transmit power relative to the Anchor carrier, such as a value range of (-30 ... 30) dB or (0...100)%.
  • each of the above modules may be implemented by software or hardware.
  • the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the modules are located in multiple In the processor.
  • Embodiments of the present invention also provide a storage medium.
  • the foregoing storage medium may be configured to store program code for performing the following steps:
  • Step S102 The user equipment UE determines whether the information of the frequency point transmitted by the base station is received, where the frequency point is the bearer selected by the base station according to the load condition if the target cell carrying the UE is a multi-frequency point cell. Frequency of business;
  • Step S104 if yes, the UE camps on a frequency point corresponding to the information of the frequency point; otherwise, the UE resides at the original frequency of staying.
  • the storage medium is further arranged to store program code for performing the following steps:
  • Step S302 the base station determines whether the target cell carrying the user equipment UE is a multi-frequency point cell
  • Step S304 if yes, the base station selects a frequency point of the bearer service according to the load condition in the target cell, and sends the selected information of the frequency point to the UE.
  • the storage medium is further arranged to store program code for performing the following steps:
  • step S502 the UE determines whether the paging frequency list is carried in the broadcast information of the multi-frequency cell, and/or the number of paging frequency points, where the paging frequency list includes a paging message for carrying the paging message. Frequency point; the number of paging frequency points is used to determine a paging frequency point list.
  • Step S504 If yes, the UE selects a frequency point in the paging frequency point list as a frequency point for receiving paging and/or bearer service according to a preset rule.
  • the storage medium is further arranged to store program code for performing the following steps:
  • Step S702 the base station determines a paging frequency point list, and/or a paging frequency point number.
  • the paging frequency point list includes a frequency point for carrying a paging message, where the paging frequency point list is used by the UE to select a frequency point in the paging frequency point list according to a preset rule.
  • the frequency of the call and/or bearer service; the number of paging frequency points is used to determine the paging frequency list.
  • Step S704 the base station carries the paging frequency point list and/or the paging frequency point number in the broadcast information of the multi-frequency point cell.
  • the storage medium is further arranged to store program code for performing the following steps:
  • Step S902 the UE acquires a frequency point of carrying paging information and/or bearer service by using a PDCCH carrying paging indication information;
  • Step S904 the UE performs subsequent paging information and/or transmission of the service at the frequency point.
  • the storage medium is further arranged to store program code for performing the following steps:
  • Step S1102 The base station determines a frequency point for carrying paging information and/or bearer service.
  • Step S1104 The base station indicates, by using a PDCCH carrying paging indication information, a frequency point of carrying paging information and/or bearer service, where the frequency point is used by the UE to perform subsequent paging on the frequency point. Transmission of information and/or services.
  • the storage medium is further arranged to store program code for performing the following steps:
  • the UE determines whether the broadcast frequency information of the multi-frequency point cell carries the service frequency point list, where the service frequency point list includes a frequency point for carrying the service;
  • the UE selects a frequency point in the service frequency point list according to a preset rule as a frequency point for the UE to initiate a service request.
  • the storage medium is further arranged to store program code for performing the following steps:
  • the base station determines a service frequency point list, where the service frequency point list includes a frequency point for carrying a service, and the service frequency point list is used by the user equipment UE to select a frequency in the service frequency point list according to a preset rule. Point as the frequency of initiating a business request;
  • the base station carries the service frequency point list in the broadcast information of the multi-frequency point cell.
  • the foregoing storage medium may include, but not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, and a magnetic memory.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • a mobile hard disk e.g., a hard disk
  • magnetic memory e.g., a hard disk
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • a frequency point selection method and apparatus provided by an embodiment of the present invention have the following beneficial effects:
  • the service frequency selection strategy in the related art is passive selection, lacking the initiative problem, and technically gives the basis for realizing load balancing of the frequency of the bearer service, and further NB-IoT which is mainly based on small data transmission. Systematic, it improves system efficiency.

Abstract

本发明实施例提供了一种频点选择方法及装置，其中，该方法包括：UE判断是否接收到基站发送的业务频点的信息，其中所述业务频点为在承载所述UE的目标小区为多频点小区的情况下，所述基站选择的承载业务的频点；如果是，则所述UE驻留在所述业务频点的信息对应的频点上；否则，所述UE驻留在原驻留频点上。通过本发明实施例，解决了相关技术中的业务频点选择策略是被动选择，缺少主动性的问题，从技术上给出了实现了对承载业务的频点的负荷均衡的基础，进一步对以小数据传输为主的NB-IoT系统来说，提升了系统效率。

Description

频点选择方法及装置 技术领域
本发明涉及通信领域，具体而言，涉及一种频点选择方法及装置。
背景技术
机器间(Machine to Machine，以下简称M2M)通信是第五代移动通信技术(5G)目前研究的一个重要课题，也是未来无线通信的一个重要应用领域。在M2M课题里，针对低成本低吞吐量类型终端的特性，提出了窄带物联网(NarowBand-Internet of Things，以下简称NB-IoT)的研究子课题：也就是在200khz的频带内为NB-IoT低成本终端提供低吞吐量的无线通讯服务。
为了节省空口信令，并达到UE快速接入的目的，NB-IoT引入了上下文挂起和恢复机制：即当用户设备(User Equipment，简称为UE)和移动性管理实体(Mobility Management Entity，简称为MME)完成上下行数据传输后，可采用无线资源控制(Radio Resource Control，简称为RRC)连接挂起机制在演进的基站(eNB，也称eNodeB)侧和MME侧将该UE的承载上下文、AS上下文挂起；后续UE和MME之间需要进行数据传输，则通过RRC连接恢复流程快速恢复UE的Uu及S1口连接。
考虑到200khz频谱带宽的单频点小区容量很小，大量NB-IoT终端接入难免会容量受限，而扩容的简单策略就是多个频点覆盖同一区域。但是如果每个频点独立为一个小区，则存在两个问题：1)同一覆盖区域会存在同覆盖的多个小区，小区太多会给UE带来没必要的无线质量测量开销；2)如果每个频点独立为一个小区，则每个频点都需要配置广播信道、同步信道，对频点资源也是浪费的。因此，有必要引入多频点小区策略：将同一eNodeB内覆盖同一区域的多个单频点小区汇聚为一个多频点小区。具体表现为：多个频点共享一个物理小区标识，共享广播信道和同步信道，业务信道可以小区内的某个频点上传输。其中，承载广播信道和同步信道的频点称之为锚定频点(Anchor频点)；不承载广播信道和同步信道的频点称之为非锚定载波(Non-Anchor频点)。
目前提出的业务频点选择策略为基于UE的国际移动用户识别码(International Mobile Subscriber Identification Number，简称为IMSI)平均分布到不同频点，或者UE采用跳频策略在多个频点上动态调度。但是按IMSI平均分布在多个频点可能存在负荷不均衡问题，UE在多个载波上动态调度存在UE频率切换问题，对以小数据传输为主的NB-IoT系统来说效率也是不高的。
针对相关技术中的业务频点选择策略是被动选择，缺少主动性的问题，目前尚未给出解决方案。
发明内容
本发明实施例提供了一种频点选择方法及装置，以至少解决相关技术中的业务频点选择策略是被动选择，缺少主动性的问题。
根据本发明的一个实施例，提供了一种频点选择方法，包括：UE判断是否接收到基站发送的业务频点的信息，其中所述业务频点为在承载所述UE的目标小区为多频点小区的情况下，所述基站选择的承载业务的频点；如果是，则所述UE驻留在所述业务频点的信息对应的频点上；否则，所述UE驻留在原驻留频点上。
可选地，UE判断是否接收到基站发送的业务频点的信息包括：所述UE接收RRC连接建立消息、或RRC连接恢复消息、或RRC连接重建立消息、或RRC连接重配置消息；所述UE判断接收到的所述RRC连接建立消息、或RRC连接恢复消息、或RRC连接重建立消息、或RRC连接重配置消息中是否携带所述业务频点的信息。
可选地，在所述UE判断接收到所述基站发送的所述业务频点的信息的情况下，在所述业务频点上进行所述UE的后续流程；否则，在当前驻留频点上进行所述UE的后续流程。
可选地，所述UE的后续流程包括所述UE在当前连接模式下的以下过程至少之一：当前连接模式下数据收发过程、当前连接模式下信令收发过程及当前连接模式下的随机接入过程。
可选地，所述业务频点的随机接入参数采用小区广播的随机接入参数。
可选地，当承载于多频点小区的UE从连接模式转换为空闲模式时，UE驻留频点的选择策略为：在判断结果为接收到基站发送RRC释放消息、或RRC连接挂起消息、或RRC连接建立消息、或RRC连接恢复消息，其中所述RRC释放消息、或RRC连接挂起消息中携带有所述业务频点的信息的情况下，所述UE驻留在所述RRC释放消息或RRC连接挂起消息中携带的所述业务频点的信息对应的频点上；或者，在判断结果为接收到基站发送RRC释放消息、或RRC连接挂起消息、和/或RRC连接建立消息、和/或RRC连接恢复消息，其中所述RRC释放消息、和/或RR·C连接挂起消息中未携带有所述业务频点的信息,但RRC连接建立消息、或RRC连接恢复消息中携带有所述业务频点的信息的情况下，所述UE驻留在RRC连接建立消息、或RRC连接恢复消息中携带的所述业务频点的信息对应的频点上；或者，在判断结果为接收到基站发送RRC释放消息、或RRC连接挂起消息、和/或RRC连接建立消息、和/或RRC连接恢复消息，其中所述RRC释放消息、RRC连接挂起消息、和/或RRC连接建立消息、和/或RRC连接恢复消息中都未携带有所述业务频点的信息的情况下，所述UE驻留至上次空闲模式下所述UE驻留的频点上。
可选地，在所述UE接收到基站发送的业务频点的信息之前，还包括：所述UE发送所述UE的多频点支持能力信息给所述基站，其中，所述UE的多频点支持能力信息用于指示所述UE是否支持多频点功能。
可选地，所述UE的多频点支持能力信息通过以下消息之一携带：RRC连接请求，RRC连接恢复请求，RRC连接重建立请求。
可选地，所述UE支持多频点功能是指所述UE允许接受所述基站配置的所述业务频点的信息。
可选地，所述UE接收到基站发送的业务频点的信息，还包括：所述UE接收所述基站发送的所述业务频点的窄带参考信号NRS的发射功率信息。
可选地，UE接收所述基站发送的所述业务频点的窄带参考信号NRS的发射功率信息包括：所述UE接收系统信息块SIB、或无线资源控制RRC连接建立消息、或RRC连接恢复消息、或RRC连接重建立消息、或RRC连接重配置消息；所述UE从接收到的所述系统信息块SIB、或RRC连接建立消息、或RRC连接恢复消息、或RRC连接重建立消息、或RRC连接重配置消息中获取所述业务频点的窄带参考信号NRS的发射功率信息。
可选地，在所述UE接收到基站发送的业务频点的信息之前，还包括：所述UE接收所述基站通过系统信息块SIB发送的所述业务频点的NRS发射功率信息。所述业务频点的NRS发射功率信息提供了NRS在每个资源单元上的能量，用于所述UE被指派到所述业务频点上时，所述UE进行RSRP测量和/或路损计算。
可选地，所述方法还包括：所述业务频点的NRS发射功率信息通过相对于锚定频点NRS功率的偏差来表征；或者，所述业务频点对应的NRS发射功率信息通过所述业务频点NRS功率的绝对值来表征。
可选的，在所述UE接收到基站发送的业务频点的信息之前，还包括：所述UE发送窄带参考信号接收功率NRSRP值给所述基站，其中，所述NRSRP值为所述UE测量到的锚定Anchor载波上承载窄带参考信号的资源单元上的功率值，或者为所述UE基于测量到的Anchor载波上承载窄带参考信号的资源单元上的功率值加预定义偏置值，所述NRSRP值用于所述基站判断所述UE的下行无线覆盖质量。
可选的，所述UE测量的窄带参考信号接收功率NRSRP值通过以下消息之一携带：RRC连接请求，RRC连接恢复请求，RRC连接重建立请求。
可选的，所述预定义偏置值为：非锚定Non-anchor载波NRS功率相对于Anchor载波NRS功率的功率差。
可选的，当UE的初始物理随机接入信道PRACH承载于Non-Anchor载波上时，所述UE在所述Non-Anchor载波的无线覆盖级别的确定方法包括：所述UE将测量到的Anchor载波的窄带参考信号接收功率NRSRP值加预定义偏移值与无线覆盖级别门限进行比较来获取，可选的，所述无线覆盖级别门限是系统信息块配置的。
可选的，所述预定义偏移值可以为：Non-anchor载波窄带参考信号NRS功率相对于Anchor载波NRS功率的功率差。
可选的，UE的初始物理随机接入信道PRACH承载于Non-Anchor载波上为初始PRACH过程，其中，所述初始PRACH过程指除物理下行控制信道指令PDCCH order触发的PRACH过程以外的PRACH过程。
根据本发明的另一实施例，提供了另一种频点选择方法，包括：基站判断承载UE的目标小区是否为多频点小区；如果是，则所述基站发送业务频点的信息给所述UE，其中，所述业务频点为所述基站为所述UE选择的承载业务的频点。
可选地，在基站判断承载UE的目标小区是否为多频点小区之前，还包括：所述基站收到所述UE的RRC连接请求、或RRC连接恢复请求、或RRC连接重建立请求。
可选地，在所述基站收到所述UE的无线资源控制RRC连接请求、或RRC连接恢复请求、或RRC连接重建立请求之后，还包括：所述基站从接收到的所述RRC连接请求、或RRC连接恢复请求、或RRC连接重建立请求中，获取所述UE的多频点支持能力信息，其中，所述UE的多频点支持能力信息用于指示所述UE是否支持多频点功能。
可选地，在所述UE的多频点支持能力信息指示所述UE支持多频点功能的情况下，还包括：所述基站为所述UE选择多频点小区的业务频点并配置业务频点信息。
可选地，所述基站发送业务频点的信息给所述UE包括：所述基站将所述业务频点的信息携带在RRC连接建立消息中发送给所述UE；或者，所述基站将所述业务频点的信息携带在RRC连接恢复消息中发送给所述UE；或者，所述基站将所述业务频点的信息携带在RRC连接重建立消息中发送给所述UE；或者，所述基站将所述业务频点的信息携带在RRC连接重配置消息中发送给所述UE。
可选地，所述基站发送业务频点的信息给所述UE还包括：所述基站在给所述UE发送所述业务频点的NRS发射功率信息。
可选地，所述基站给所述UE发送业务频点的NRS发射功率信息还包括：所述基站将所述业务频点的NRS发射功率信息携带在系统消息块SIB中发送给所述UE；或者，所述基站将所述业务频点的NRS发射功率信息携带在RRC连接建立消息中发送给所述UE；或者，所述基站将所述业务频点的NRS发射功率信息携带在RRC连接恢复消息中发送给所述UE；或者，所述基站将所述业务频点的NRS发射功率信息携带在RRC连接重建立消息中发送给所述UE；或者，所述基站将所述业务频点的NRS发射功率信息携带在RRC连接重配置消息中发送给所述UE。
可选地，所述方法还包括：所述业务频点对应的NRS发射功率信息通过相对于锚定频点NRS功率的偏差来表征；或者，所述业务频点对应的NRS发射功率信息通过所述业务频点NRS功率的绝对值来表征。
可选地，在所述基站发送业务频点的信息给所述UE的情况下，所述基站在所述业务频点上进行对所述UE的后续流程；否则，所述基站对所述UE的后续流程在当前驻留频点上进行。
可选地，所述基站对所述UE进行的后续流程包括所述UE在当前连接模式下的以下过程至少之一：当前连接模式下数据收发过程，当前连接模式下信令收发过程，及当前连接模式下的随机接入过程。
可选地，所述方法还包括：所述基站广播随机接入参数给所述UE，所述随机接入参数适用于小区内所有频点。
可选地，所述基站发送业务频点的信息给所述UE包括：所述基站将所述业务频点的信息携带在RRC释放消息或RRC连接挂起消息中发送给所述UE，其中，所述业务频点的信息为承载广播信道的频点对应的信息。
可选的，根据权利要求16所述的方法，在所述基站收到所述UE的无线资源控制RRC连接请求、或RRC连接恢复请求、或RRC连接重建立请求之后，还包括：所述基站从接收到的所述RRC连接请求、或RRC连接恢复请求、或RRC连接重建立请求中，获取窄带参考信号接收功率NRSRP的值，所述NRSRP值表示UE接收到的承载窄带参考信号的资源单元上的功率值，所述NRSRP值用于所述基站判断所述UE的下行无线覆盖质量。
可选的，所述方法还包括：所述基站基于所述NRSRP值来确定后续以下至少之一：无线覆盖级别、上行无线覆盖级别、下行无线覆盖级别、上行信道的物理层重复发送次数、下行信道的物理层重复发送次数。
根据本发明的再一实施例，提供了一种频点选择方法，包括：UE判断多频点小区的广播信息中是否携带的寻呼频点列表，和/或寻呼频点个数，其中，所述寻呼频点列表中包括用于承载寻呼消息的频点；所述寻呼频点个数用于确定寻呼频点列表；如果是，则所述UE按照预设规则在所述寻呼频点列表中选择频点作为接收寻呼和/或承载业务的频点。
可选地，所述UE按照预设规则在所述寻呼频点列表中选择频点作为接收寻呼和/或承载业务的频点包括：所述UE按照所述预设规则获取所述接收寻呼和/或承载业务的频点对应的频点索引；根据所述频点索引确定对应的接收寻呼和/或承载业务的频点。
可选地，所述UE按照所述预设规则获取所述接收寻呼和/或承载业务的频点对应的频点索引包括：所述UE根据所述UE的标识与承载所述寻呼消息的频点个数取模得到对应的频点索引。
根据本发明的再一实施例，还提供了一种频点选择方法，包括：基站确定寻呼频点列表，和/或寻呼频点个数，其中，所述寻呼频点列表中包括用于承载寻呼消息的频点，所述寻呼频点列表用于用户设备UE按照预设规则在所述寻呼频点列表中选择频点作为接收寻呼和/或承载业务的频点；所述寻呼频点个数用于确定寻呼频点列表；所述基站在多频点小区的广播信息中携带所述寻呼频点列表，和/或寻呼频点个数。
根据本发明的还一实施例，提供了一种频点选择方法，包括：UE通过承载寻呼指示信息的PDCCH来获取承载寻呼信息和/或承载业务的频点；所述UE在所述频点上进行后续的寻呼信息和/或业务的传输。
可选地，UE通过承载寻呼指示信息的PDCCH来获取承载寻呼信息和/或承载业务的频点包括：所述UE通过广播接收多频点小区中承载寻呼消息信息和/或业务的频点的频点列表；所述UE在PDCCH中获取所述承载寻呼信息和/或承载业务的频点在所述频点列表中的索引。
可选地，所述UE在PDCCH中获取所述承载寻呼信息和/或承载业务的频点在所述频点列表中的索引包括：所述UE通过DCI在所述PDCCH中获取所述承载寻呼信息和/或承载业务的频点在所述频点列表中的索引。
根据本发明的还一实施例，还提供了一种频点选择方法，包括：基站确定承载寻呼信息和/或承载业务的频点；所述基站通过承载寻呼指示信息的PDCCH向UE指示承载寻呼信息和/或承载业务的频点，所述频点用于所述UE在所述频点上进行后续的寻呼信息和/或业务的传输。
可选地，所述基站通过承载寻呼指示信息的PDCCH向UE指示承载寻呼信息和/或承载业务的频点包括：所述基站通过广播的方式发送多频点小区中承载寻呼消息信息和/或业务的频点的频点列表给所述UE；所述基站在PDCCH中携带所述承载寻呼消息信息和/或业务的频点在所述频点列表中的索引。
可选地，所述基站在PDCCH中携带所述承载寻呼消息信息和/或业务的频点在所述频点列表中的索引包括：所述基站通过DCI在所述PDCCH中携带所述承载寻呼消息信息和/或业务的频点在所述频点列表中的索引。
根据本发明的还一实施例，提供了另一种频点选择方法，包括：UE判断多频点小区的广播信息中是否携带业务频点列表，其中，所述业务频点列表中包括用于承载业务的频点；如果是，则所述UE按照预设规则在所述业务频点列表中选择频点作为UE主动发起业务请求的频点。
可选地，所述UE按照预设规则在所述业务频点列表中选择频点作为发起业务请求的频点包括：所述UE按照所述预设规则获取所述UE主动发起业务请求的频点的频点索引；根据所述频点索引确定对应的UE主动发起业务请求的频点。
可选地，所述UE按照所述预设规则获取UE主动发起业务请求的频点的频点索引包括：所述UE根据所述UE的标识与所述UE主动发起业务请求的频点的频点个数取模得到所述频点索引。
根据本发明的还一实施例，还提供了另一种频点选择方法，包括：基站确定业务频点列表，其中，所述业务频点列表中包括用于承载业务的频点，所述业务频点列表用于UE按照预设规则在所述业务频点列表中选择频点作为发起业务请求的频点；所述基站在多频点小区的广播信息中携带所述业务频点列表。
根据本发明的另一实施例，提供了一种频点选择装置，位于UE，包括：第一判断模块，设置为判断是否接收到基站发送的业务频点的信息，其中所述业务频点为在承载所述UE的目标小区为多频点小区的情况下，所述基站选择的承载业务的频点；驻留模块，设置为在判断结果为是的情况下，驻留在所述业务频点的信息对应的频点上；或者在判断结果为否的情况下，驻留在原驻留频点上。
根据本发明的另一实施例，提供了另一种频点选择装置，位于基站，包括：第二判断模 块，设置为判断承载UE的目标小区是否为多频点小区；第一发送模块，设置为在判断结果为是的情况下，发送业务频点的信息给所述UE，其中，所述业务频点为所述基站为所述UE选择的承载业务的频点。
根据本发明的再一实施例，提供了一种频点选择装置，位于UE，包括：第三判断模块，设置为判断多频点小区的广播信息中是否携带的寻呼频点列表，和/或寻呼频点个数，其中，所述寻呼频点列表中包括用于承载寻呼消息的频点；所述寻呼频点个数用于确定寻呼频点列表；选择模块，设置为在判断结果为是的情况下，按照预设规则在所述寻呼频点列表中选择频点作为接收寻呼和/或承载业务的频点。
根据本发明的再一实施例，还提供了一种频点选择装置，位于基站，包括：第一确定模块，设置为确定寻呼频点列表，和/或寻呼频点个数，其中，所述寻呼频点列表中包括用于承载寻呼消息的频点，所述寻呼频点列表用于用户设备UE按照预设规则在所述寻呼频点列表中选择频点作为接收寻呼和/或承载业务的频点；所述寻呼频点个数用于确定寻呼频点列表；第二发送模块，设置为在多频点小区的广播信息中携带所述寻呼频点列表，和/或寻呼频点个数。
根据本发明的还一实施例，提供了一种频点选择装置，位于UE，包括：获取模块，设置为通过承载寻呼指示信息的PDCCH来获取承载寻呼信息和/或承载业务的频点；传输模块，设置为在所述频点上进行后续的寻呼信息和/或业务的传输。
根据本发明的还一实施例，还提供了一种频点选择装置，位于基站，包括：第二确定模块，设置为确定承载寻呼信息和/或承载业务的频点；第三发送模块，设置为通过承载寻呼指示信息的PDCCH向UE指示承载寻呼信息和/或承载业务的频点，所述频点用于所述UE在所述频点上进行后续的寻呼信息和/或业务的传输。
通过本发明，采用UE判断是否接收到基站发送的业务频点的信息，其中所述业务频点为在承载所述UE的目标小区为多频点小区的情况下，所述基站选择的承载业务的频点；如果是，则所述UE驻留在所述业务频点的信息对应的频点上；否则，所述UE驻留在原驻留频点上的方式，解决了相关技术中的业务频点选择策略是被动选择，缺少主动性的问题，从技术上给出了实现对承载业务的频点的负荷均衡的基础，进一步对以小数据传输为主的NB-IoT系统来说，提升了系统效率。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1是根据本发明实施例的频点选择方法的流程图；
图2是根据本发明实施例的频点选择装置的结构框图；
图3是根据本发明实施例的另一种频点选择方法的流程图；
图4是根据本发明实施例的另一种频点选择装置的结构框图；
图5是根据本发明实施例的再一种频点选择方法一的流程图；
图6是根据本发明实施例的再一种频点选择装置一的结构框图；
图7是根据本发明实施例的再一种频点选择方法二的流程图；
图8是根据本发明实施例的再一种频点选择装置二的结构框图；
图9是根据本发明实施例的还一种频点选择方法一的流程图；
图10是根据本发明实施例的还一种频点选择装置一的结构框图；
图11是根据本发明实施例的还一种频点选择方法二的流程图；
图12是根据本发明实施例的还一种频点选择装置二的结构框图；
图13是根据本发明实施例一的流程图；
图14是根据本发明实施例二的流程图；
图15是根据本发明实施例三的流程图；
图16是根据本发明实施例四的流程图；
图17是根据本发明实施例五的流程图；
图18是根据本发明实施例六的流程图；
图19是根据本发明实施例七的流程图；
图20是根据本发明实施例八的流程图；
图21是根据本发明实施例九的流程图；
图22是根据本发明实施例十的流程图；
图23是根据本发明实施例十一的流程图；
图24是根据本发明实施例十二的流程图；
图25是根据本发明实施例十三的流程图；
图26是根据本发明实施例的还一种频点选择方法三的流程图；
图27是根据本发明实施例的还一种频点选择方法四的流程图。
具体实施方式
下文中将参考附图并结合实施例来详细说明本发明。需要说明的是，在不冲突的情况下， 本申请中的实施例及实施例中的特征可以相互组合。
需要说明的是，本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。
在本实施例中提供了一种频点选择方法，图1是根据本发明实施例的频点选择方法的流程图，如图1所示，该流程包括如下步骤：
步骤S102，UE判断是否接收到基站发送的业务频点的信息，其中所述业务频点为在承载所述UE的目标小区为多频点小区的情况下，所述基站选择的承载业务的频点；
步骤S104，如果是，则所述UE驻留在所述业务频点的信息对应的频点上；否则，所述UE驻留在原驻留频点上。
通过上述步骤，基站在承载UE的目标小区为多频点小区的情况下选择承载业务的频点，并将业务频点的信息发送给UE，UE通过接收该业务频点的信息，从而选择对应的业务频点进行数据的发送与接收，而如果UE没接收到业务频点的信息，则驻留在原驻留频点，从而使得UE驻留的频点可以是由基站主动选择的承载业务的频点，解决了相关技术中的业务频点选择策略是被动选择，缺少主动性的问题，从技术上给出了实现对承载业务的频点的负荷均衡的基础，进一步对以小数据传输为主的NB-IoT系统来说，提升了系统效率。
可选地，本文中的基站可以是演进的基站eNodeB。
作为一种优选实施方式，基站可以通过RRC连接请求、或RRC连接恢复请求、或RRC连接重建立消息、或RRC连接重配置消息发送上述业务频点的信息，在这种情况下，在上述步骤S102中，所述可以接收RRC连接建立消息、或RRC连接恢复消息(即RRC连接恢复完成消息)、或RRC连接重建立消息、或RRC连接重配置消息，然后判断接收到的所述RRC连接建立消息、或RRC连接恢复消息、或RRC连接重建立消息、或RRC连接重配置消息中是否携带所述业务频点的信息。
作为一种优选实施方式，在所述UE判断接收到所述基站发送的所述业务频点的信息的情况下，在所述业务频点上进行所述UE的后续流程；否则，在当前驻留频点上进行所述UE的后续流程。可选地，所述UE的后续流程可以包括所述UE在当前连接模式下的所有过程，例如，当前连接模式下数据收发、当前连接模式下信令收发及当前连接模式下的随机接入过程。
可选地，所述业务频点的随机接入参数采用小区广播的随机接入参数。
优选地，在所述UE当前状态为空闲IDLE态时，可以使所述UE驻留在承载广播信道的频点上。具体实现方式可以如下：
1.在小区初始选择时：UE只能监测到有广播信道的频点，所以只能选择驻留于承载广播信道的频点上；
2.在小区重选时：通过广播信息配置策略来实现。在广播信息的配置时，邻区频点以承载广播信道的频点为准。这样，UE重选时自然会重选到承载广播信道的频点上。
3.在UE由RRC连接状态向IDLE模式转换时：指定该UE驻留于承载广播信道的频点上。具体实现为：
在步骤S102的判断结果为接收到基站发送RRC释放消息、或RRC连接挂起消息、和/或RRC连接建立消息、和/或RRC连接恢复消息，其中所述RRC释放消息或RRC连接挂起消息中携带有所述业务频点的信息(也称重定向信元)的情况下，所述业务频点的信息仅填写承载广播信道的频点对应的信息，这样，UE就会驻留于承载广播信道的频点上；如果RRC释放消息、和/或RRC连接挂起消息中未携带有所述业务频点的信息(也称重定向信元)、但RRC连接建立消息、或RRC连接恢复消息中携带有所述业务频点的信息(重定向信元)，所述UE驻留在RRC连接建立消息、或RRC连接恢复消息中携带的所述业务频点的信息对应的频点上；如果RRC释放消息、和/或RRC连接挂起消息、和/或RRC连接建立消息、和/或RRC连接恢复消息中都未携带有所述业务频点的信息(也称重定向信元),则UE释放后自动驻留于当前小区承载广播信道和同步信道的频点上。
具体地，当承载于多频点小区的UE从连接模式转换为空闲模式时，UE驻留频点的选择策略为：在判断结果为接收到基站发送RRC释放消息、或RRC连接挂起消息，其中所述RRC释放消息、或RRC连接挂起消息中携带有所述业务频点的信息的情况下，所述UE驻留在所述RRC释放消息或RRC连接挂起消息中携带的所述业务频点的信息对应的频点上；或者，在判断结果为接收到基站发送RRC释放消息、或RRC连接挂起消息、和/或RRC连接建立消息、和/或RRC连接恢复消息，其中所述RRC释放消息、和/或RRC连接挂起消息中未携带有所述业务频点的信息,但RRC连接建立消息、或RRC连接恢复消息中携带有所述业务频点的信息的情况下，所述UE驻留在RRC连接建立消息、或RRC连接恢复消息中携带的所述业务频点的信息对应的频点上；或者，在判断结果为接收到基站发送RRC释放消息、或RRC连接挂起消息、和/或RRC连接建立消息、和/或RRC连接恢复消息，其中所述RRC释放消息、RRC连接挂起消息、和/或RRC连接建立消息、和/或RRC连接恢复消息中都未携带有所述业务频点的信息的情况下，所述UE驻留至上次空闲模式下所述UE驻留的频点上。
可选地，在所述UE判断接收到所述基站发送的所述业务频点的信息的情况下，则所述UE从所述RRC连接建立消息、或RRC连接恢复消息、或RRC连接重建立消息、或RRC连接重配置消息，或者系统信息块SIB中接收所述业务频点的窄带参考信号(Narrowband Reference Signal，NRS)的发射功率信息。所述业务频点的NRS发射功率信息提供了NRS在每个资源单元上的能量(Energy Per Resource Element，EPRE)，用于所述UE进行：RSRP(Reference Signal Received Power)测量，和/或，路损计算。其中，所述业务频点对应的NRS发射功率信息可以通过相对于Anchor频点NRS功率的偏差来表征，或者，所述业务频点对应的NRS发射功率信息可以通过所述业务频点NRS功率的绝对值来表征。
进一步地，小区内承载广播信道的频点可以通过SIB信息或者RRC信令来获取。
作为一种优选实施方式，在所述UE接收到基站发送的业务频点的信息之前，所述UE还可以发送所述UE的多频点支持能力信息给所述基站，其中，所述UE的多频点支持能力信息用于指示所述UE是否支持多频点功能。本实施例中的所述UE支持多频点功能可以指所述 UE允许接受所述基站配置的所述业务频点的信息。
其中，所述UE的多频点支持能力信息可以通过以下消息之一携带：RRC连接请求，RRC连接恢复请求，RRC连接重建立请求。
可选地，在所述UE判断接收到所述基站发送的所述业务频点的信息前，所述UE通过SIB接收所述业务频点的NRS发射功率信息。所述业务频点的NRS发射功率信息提供了NRS在每个资源单元上的能量，用于所述UE被指派到所述业务频点上时，所述UE进行：RSRP测量，和/或，路损计算。其中，所述业务频点对应的NRS发射功率信息可以通过相对于Anchor频点NRS功率的偏差来表征，或者，所述业务频点对应的NRS发射功率信息可以通过所述业务频点NRS功率的绝对值来表征。
可选地，在所述UE向所述基站发起初始PRACH过程之前，所述UE要判断其所处无线覆盖级别：
当UE驻留于anchor载波上时，其无线覆盖级别基于所述UE测量到的Anchor载波的窄带参考信号接收功率NRSRP值与所述无线覆盖级别门限进行比较来获取；
当UE驻留于non-anchor载波上时，其无线覆盖级别基于所述UE测量到的Anchor载波的窄带参考信号接收功率NRSRP值加预定义偏移值与所述无线覆盖级别门限进行比较来获取；所述预定义偏移值可以为：Non-anchor载波NRS功率相对于Anchor载波NRS功率的功率差。
UE根据UE的驻留的载波类型确定UE的无线覆盖级别的具体方法为：对于驻留于Anchor载波上的初始PRACH过程：UE收到广播消息后，获取无线覆盖级别NRSRP门限【门限0，门限1】：采用无线覆盖级别NRSRP门限与当前的NRSRP测量值比较来进行无线覆盖级别判决：NRSRP值大于或等于门限0的覆盖为覆盖级别0；NRSRP值小于门限0，且大于或等于门限1的覆盖为覆盖级别1；NRSRP值小于门限1的覆盖为覆盖级别2。对于驻留于Non-Anchor载波上的初始PRACH过程：UE收到广播消息后，获取无线覆盖级别RSRP门限【门限0，门限1】：采用“无线覆盖级别RSRP门限”与当前的RSRP测量值+“Non-anchor载波NRS功率相对于Anchor载波NRS功率的功率偏差”比较来进行无线覆盖级别判决：RSRP值+“Non-anchor载波NRS功率相对于Anchor载波NRS功率的功率偏差”大于或“等于门限0”的覆盖为覆盖级别0；RSRP值+“Non-anchor载波NRS功率相对于Anchor载波NRS功率的功率偏差”小于“门限0”，且大于或等于“门限1”的覆盖为覆盖级别1；RSRP值+“Non-anchor载波NRS功率相对于Anchor载波NRS功率的功率偏差”小于“门限1”的覆盖为覆盖级别2。其中上述判断中所加的“Non-anchor载波NRS功率相对于Anchor载波NRS功率的功率偏差”可以根据SIB中广播的NRS功率信息来获取。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到根据上述实施例的方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端设备(可以是手机，计算机， 服务器，或者网络设备等)执行本发明各个实施例所述的方法。
在本实施例中还提供了一种频点选择装置，位于用户设备UE，该装置用于实现上述实施例及优选实施方式，已经进行过说明的不再赘述。如以下所使用的，术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现，但是硬件，或者软件和硬件的组合的实现也是可能并被构想的。
图2是根据本发明实施例的频点选择装置的结构框图，如图2所示，该装置包括：第一判断模块22，设置为判断是否接收到基站发送的业务频点的信息，其中所述业务频点为在承载所述UE的目标小区为多频点小区的情况下，所述基站选择的承载业务的频点；驻留模块24，设置为在所述第一判断模块22的判断结果为是的情况下，驻留在所述业务频点的信息对应的频点上；或者在判断结果为否的情况下，驻留在原驻留频点上。
在本实施例中，还提供了另一种频点选择方法，图3是根据本发明实施例的另一种频点选择方法的流程图，如图3所示，该流程包括如下步骤：
步骤S302，基站判断承载UE的目标小区是否为多频点小区；
步骤S304，如果是，则所述基站发送业务频点的信息给所述UE，其中，所述业务频点为所述基站为所述UE选择的承载业务的频点。
通过上述步骤，基站在承载UE的目标小区为多频点小区的情况下发送业务频点的信息给所述UE，其中，所述业务频点为所述基站为所述UE选择的承载业务的频点，从而UE可以通过接收该频点的信息，选择对应的频点进行数据的发送与接收，使得UE驻留的频点可以是由基站主动选择的承载业务的频点，解决了相关技术中的业务频点选择策略是被动选择，缺少主动性的问题，从技术上给出了实现对承载业务的频点的负荷均衡的基础，进一步对以小数据传输为主的NB-IoT系统来说，提升了系统效率。
作为一种优选实施方式，UE可以通过RRC连接请求、或RRC连接恢复请求、或RRC连接重建立请求发送UE的多频点小区支持能力的信息给基站，在这种情况下，在上述步骤S302之前，所述基站收到所述UE的RRC连接请求、或RRC连接恢复请求、或RRC连接重建立请求。可选地，所述基站可以将选择的所述业务频点的信息携带在RRC连接建立消息中发送给所述UE；或者，所述基站可以将所述业务频点的信息携带在RRC连接恢复消息中发送给所述UE；或者，所述基站可以将所述业务频点的信息携带在RRC连接重建立消息中发送给所述UE；或者，所述基站可以将所述业务频点的信息携带在RRC连接重配置消息中发送给所述UE。
可选地，所述基站发送业务频点的信息给所述UE包括：所述基站在相关消息中同时给所述UE发送所述业务频点的NRS发射功率信息。所述业务频点对应的NRS发射功率信息提供了NRS在每个资源单元上的能量，用于所述UE进行：RSRP测量，和/或，路损计算。其中，所述业务频点的NRS发射功率信息可以通过相对于Anchor频点NRS功率的偏差来表征，或者，所述业务频点的NRS发射功率信息可以通过所述业务频点NRS功率的绝对值来表征。
作为一种优选实施方式，所述基站可以从接收到的所述RRC连接请求、或RRC连接恢复请求、或RRC连接重建立请求中，获取所述UE的多频点支持能力信息，其中，所述UE的多频点支持能力信息用于指示所述UE是否支持多频点功能。在本实施例中，当所述UE的多频点支持能力信息指示所述UE支持多频点功能的情况下，所述基站可以为所述支持多频点功能的UE选择多频点小区的业务频点并配置业务频点信息；所述支持多频点功能的UE可接受基站配置的业务频点信息。
优选地，在所述UE当前状态为空闲IDLE态时，可以使所述UE驻留在承载广播信道的频点上。具体实现方式可以如下：
1.在小区初始选择时：UE只能监测到有广播信道的频点，所以只能选择驻留于承载广播信道的频点上；
2.在小区重选时：通过广播信息配置策略来实现。在广播信息的配置时，邻区频点以承载广播信道的频点为准。这样，UE重选时自然会重选到承载广播信道的频点上。
3.在UE由RRC连接状态向IDLE模式转换时：指定该UE驻留于承载广播信道的频点上。具体实现为：
如果基站在发送的RRC释放消息或RRC连接挂起消息中携带有所述业务频点的信息(也称重定向信元)的情况下，所述业务频点的信息仅填写承载广播信道的频点对应的信息，这样，UE就会驻留于承载广播信道的频点上；如果基站在RRC释放消息或RRC连接挂起消息中未携带有所述业务频点的信息(重定向信元)，则UE释放后自动驻留于当前小区承载广播信道和同步信道的频点上。
具体地，可以在RRC释放消息或RRC连接挂起消息中携带承载广播信道的频点信息，引导UE驻留到承载广播信道的频点上；或者在RRC连接建立或RRC恢复完成消息中携带承载广播信道的频点，但RRC释放消息或RRC连接挂起消息中未携带承载广播信道的频点信息，则UE在RRC释放或RRC连接挂起时自动驻留到RRC连接建立或RRC恢复完成消息携带的承载广播信道的频点上；或者在RRC连接建立或RRC恢复完成消息中未携带承载广播信道的频点，且在RRC释放消息或RRC连接挂起消息中也未携带承载广播信道的频点信息，则UE在RRC释放或RRC连接挂起时自动驻留到上次IDLE模式接收广播的频点。
进一步地，小区内承载广播信道的频点可以通过SIB信息或者RRC信令来获取。
作为一种优选实施方式，在所述基站发送业务频点的信息给所述UE的情况下，所述基站在所述业务频点上进行对所述UE的后续流程；否则，所述基站对所述UE的后续流程在当前驻留频点上进行。可选地，所述基站对所述UE进行的后续流程可以包括所述UE在当前连接模式下的所有过程，例如当前连接模式下数据收发，当前连接模式下信令收发，及当前连接模式下的随机接入过程等。
可选地，所述方法还包括：所述基站通过系统消息块SIB、或RRC连接建立消息、或RRC连接恢复消息、或RRC连接重建立消息、或RRC连接重配置消息给所述UE发送所述业务频 点的NRS发射功率信息。所述业务频点的NRS发射功率信息提供了窄带参考信号NRS在每个资源单元上的能量，用于所述UE被指派到所述业务频点上时，所述UE进行参考信号接收功率RSRP测量和/或路损计算。其中，所述业务频点的NRS发射功率信息可以通过相对于Anchor频点NRS功率的偏差来表征，或者，所述业务频点的NRS发射功率信息可以通过所述业务频点NRS功率的绝对值来表征。
可选地，所述基站还可以广播随机接入参数给所述UE，该所述随机接入参数可适用于小区内所有频点。
在本实施例中还提供了另一种频点选择装置，位于基站，图4是根据本发明实施例的另一种频点选择装置的结构框图，如图4所示，该装置包括：第二判断模块42，设置为判断承载用户设备UE的目标小区是否为多频点小区；第一发送模块44，设置为在所述第二判断模块42的判断结果为是的情况下，发送业务频点的信息给所述UE，其中，所述业务频点为所述基站为所述UE选择的承载业务的频点。
在本实施例中，还提供了一种频点选择方法，图5是根据本发明实施例的再一种频点选择方法一的流程图，如图5所示，该方法包括：
步骤S502，UE判断多频点小区的广播信息中是否携带的寻呼频点列表，和/或寻呼频点个数，其中，所述寻呼频点列表中包括用于承载寻呼消息的频点；所述寻呼频点个数用于确定寻呼频点列表。
步骤S504，如果是，则所述UE按照预设规则在所述寻呼频点列表中选择频点作为接收寻呼和/或承载业务的频点。
通过上述步骤，基站在多频点小区的广播信息中携带寻呼频点列表，和/或寻呼频点个数，其中所述寻呼频点个数用于确定寻呼频点列表。该所述寻呼频点列表中包括用于承载寻呼消息的频点，UE按照预设规则在该寻呼频点列表中选择频点作为接收寻呼和/或承载业务的频点，从而使得UE的频点可以是由基站主动选择的频点，解决了相关技术中的业务频点选择策略是被动选择，缺少主动性的问题，从技术上给出了实现对频点的负荷均衡的基础，进一步对以小数据传输为主的NB-IoT系统来说，提升了系统效率。
作为一种优选实施方式，如果UE接收到上述实施例中给出的指定业务频点的信息时，可以按照上述方法在指定的业务频点信息上进行后续的业务流程；如果UE未接收到上述实施例中给出的指定业务频点的信息时，则可以按照本实施例中给出的预设规则选择业务频点，并在所述业务频点上进行后续的业务流程。
UE在上述频点集合中选择频点的预设规则可以有很多种，例如，可以是UE标识(ID)与承载寻呼消息(Paging)的频点个数取模得到对应的频点索引，即所述UE可以按照所述预设规则获取所述接收寻呼和/或承载业务的频点对应的频点索引；根据所述频点索引确定对应的接收寻呼和/或承载业务的频点。其中频点索引可以是所述UE根据所述UE的标识与承载所述寻呼消息的频点个数取模得到。或者也可以通过其他类似的策略得到频点或者频点索引。 其中，承载寻呼消息(Paging)的频点列表也可以为多频点小区的所有频点列表，此时表示所有频点都可以承载寻呼消息。
在IDLE模式下，UE可以采用跳频的方式监控承载广播信道的频点和承载自己寻呼消息的频点。其中，在寻呼时机(Paging Occasion)和后续寻呼消息接收阶段，UE监控承载自己寻呼消息的频点；其他时刻，UE可以监控承载广播信道的频点，以便接收系统广播和保持与网络的同步。
在本实施例中还提供了一种频点选择装置，位于UE，图6是根据本发明实施例的再一种频点选择装置一的结构框图，如图6所示，该装置包括：第三判断模块62，设置为判断多频点小区的广播信息中是否携带的寻呼频点列表，和/或寻呼频点个数，其中，所述寻呼频点列表中包括用于承载寻呼消息的频点；所述寻呼频点个数用于UE确定寻呼频点列表；选择模块64，设置为在所述第三判断模块62的判断结果为是的情况下，按照预设规则在所述寻呼频点列表中选择频点作为接收寻呼和/或承载业务的频点。
在本实施例中，还提供了一种频点选择方法，图7是根据本发明实施例的再一种频点选择方法二的流程图，如图7所示，该方法包括：
步骤S702，基站确定寻呼频点列表，和/或寻呼频点个数。其中，所述寻呼频点列表中包括用于承载寻呼消息的频点，所述寻呼频点列表用于UE按照预设规则在所述寻呼频点列表中选择频点作为接收寻呼和/或承载业务的频点；所述寻呼频点个数用于确定寻呼频点列表。
步骤S704，所述基站在多频点小区的广播信息中携带所述寻呼频点列表，和/或寻呼频点个数。
通过上述步骤，基站在多频点小区的广播信息中携带寻呼频点列表，和/或寻呼频点个数，其中，所述寻呼频点个数用于确定寻呼频点列表。UE按照预设规则在所述寻呼频点列表中选择频点作为接收寻呼和/或承载业务的频点，从而使得UE的频点可以是由基站主动选择的频点，解决了相关技术中的业务频点选择策略是被动选择，缺少主动性的问题，从技术上给出了实现对频点的负荷均衡的基础，进一步对以小数据传输为主的NB-IoT系统来说，提升了系统效率。
作为一种优选实施方式，如果UE接收到上述实施例中给出的指定业务频点的信息时，可以按照上述方法在指定的业务频点信息上进行后续的业务流程；如果UE未接收到上述实施例中给出的指定业务频点的信息时，则可以按照本实施例中给出的预设规则选择业务频点，并在所述业务频点上进行后续的业务流程。
在本实施例中还提供了一种频点选择装置，位于基站，图8是根据本发明实施例的再一种频点选择装置二的结构框图，如图8所示，该装置包括：第一确定模块82，设置为确定寻呼频点列表，和/或寻呼频点个数，其中，所述寻呼频点列表中包括用于承载寻呼消息的频点，所述寻呼频点列表用于UE按照预设规则在所述寻呼频点列表中选择频点作为接收寻呼和/或承载业务的频点；所述寻呼频点个数用于UE确定寻呼频点列表；第二发送模块84，设置为 在多频点小区的广播信息中携带所述寻呼频点列表，和/或寻呼频点个数。
在本实施例中，还提供了一种频点选择方法，图9是根据本发明实施例的还一种频点选择方法一的流程图，如图9所示，该方法包括：
步骤S902，UE通过承载寻呼指示信息的物理下行控制信道(Physical Downlink Control Channel，简称为PDCCH)来获取承载寻呼信息和/或承载业务的频点；
步骤S904，所述UE在所述频点上进行后续的寻呼信息和/或业务的传输。
通过上述步骤，基站在承载寻呼指示信息的PDCCH中携带承载寻呼信息和/或承载业务的频点，UE通过承载寻呼指示信息的PDCCH来获取承载寻呼信息和/或承载业务的频点并进行后续的寻呼信息和/或业务的传输，从而使得UE的频点可以是由基站主动选择的频点，解决了相关技术中的业务频点选择策略是被动选择，缺少主动性的问题，从技术上给出了实现对频点的负荷均衡的基础，进一步对以小数据传输为主的NB-IoT系统来说，提升了系统效率。
考虑到在PDCCH中能够携带信息的数量较少，因此UE可以通过广播接收多频点小区中承载寻呼消息信息和/或业务的频点的频点列表，并通过PDCCH中获取所述承载寻呼信息和/或承载业务的频点在所述频点列表中的索引。从而通过频点列表和索引的组合来获取相应的频点。
具体地，所述UE可以通过下行控制信息(Downlink Control Information，简称为DCI)在所述PDCCH中获取所述承载寻呼信息和/或承载业务的频点在所述频点列表中的索引。
在本实施例中还提供了一种频点选择装置，位于基站，图10是根据本发明实施例的还一种频点选择装置一的结构框图，如图10所示，该装置包括：获取模块102，设置为通过承载寻呼指示信息的PDCCH来获取承载寻呼信息和/或承载业务的频点；传输模块104，设置为在所述频点上进行后续的寻呼信息和/或业务的传输。
在本实施例中，还提供了一种频点选择方法，图11是根据本发明实施例的还一种频点选择方法二的流程图，如图11所示，该方法包括：
步骤S1102，基站确定承载寻呼信息和/或承载业务的频点；
步骤S1104，所述基站通过承载寻呼指示信息的PDCCH向UE指示承载寻呼信息和/或承载业务的频点，所述频点用于所述UE在所述频点上进行后续的寻呼信息和/或业务的传输。
通过上述步骤，基站在承载寻呼指示信息的PDCCH中携带承载寻呼信息和/或承载业务的频点，UE通过承载寻呼指示信息的PDCCH来获取承载寻呼信息和/或承载业务的频点并进行后续的寻呼信息和/或业务的传输，从而使得UE的频点可以是由基站主动选择的频点，解决了相关技术中的业务频点选择策略是被动选择，缺少主动性的问题，从技术上给出了实现对频点的负荷均衡的基础，进一步对以小数据传输为主的NB-IoT系统来说，提升了系统效率。
考虑到在PDCCH中能够携带信息的数量较少，因此所述基站可以通过广播的方式发送多频点小区中承载寻呼消息信息和/或业务的频点的频点列表给所述UE，并通过PDCCH中携带 所述承载寻呼消息信息和/或业务的频点在所述频点列表中的索引。
具体地，所述基站可以通过DCI在所述PDCCH中携带所述承载寻呼消息信息和/或业务的频点在所述频点列表中的索引。
在本实施例中还提供了一种频点选择装置，位于基站，图12是根据本发明实施例的还一种频点选择装置二的结构框图，如图12所示，该装置包括：第二确定模块122，设置为确定承载寻呼信息和/或承载业务的频点；第三发送模块124，设置为通过承载寻呼指示信息的PDCCH向UE指示承载寻呼信息和/或承载业务的频点，所述频点用于所述UE在所述频点上进行后续的寻呼信息和/或业务的传输。
在本实施例中，还提供了一种频点选择方法，图26是根据本发明实施例的还一种频点选择方法三的流程图，如图26所示，该方法包括：
步骤S2602，UE判断多频点小区的广播信息中是否携带业务频点列表，其中，所述业务频点列表中包括用于承载业务的频点；
步骤S2604，如果是，则所述UE按照预设规则在所述业务频点列表中选择频点作为UE主动发起业务请求的频点。
通过上述步骤，基站在广播信息中携带业务频点列表，多频点小区中UE触发的业务接入请求时UE根据广播信息中的业务频点列表按照预定义规则选择业务频点并发起业务请求，从而使得UE的频点可以是由基站主动选择的频点，解决了相关技术中的业务频点选择策略是被动选择，缺少主动性的问题，从技术上给出了实现对承载业务的频点的负荷均衡的基础，进一步对以小数据传输为主的NB-IoT系统来说，提升了系统效率。
作为一种优选实施方式，如果UE接收到上述实施例中给出的指定业务频点的信息时，可以按照上述方法在指定的业务频点信息上进行后续的业务流程；如果UE未接收到上述实施例中给出的指定业务频点的信息时，则可以按照本实施例中给出的预设规则选择业务频点，并在所述业务频点上进行后续的业务流程。
可选地，UE监控承载广播信道的频点并接收广播信息，其中，广播信息中携带可以承载业务消息的频点列表。UE按照预定义规则选择其中的一个频点作为承载业务的频点发起随机接入请求，并在该频点上进行后续的业务收发。其中，预定义规则可以是通过UE ID与业务频点个数取模来确定业务频点，或者其他类似方法。
具体方式如下：步骤S2604中，所述UE按照所述预设规则获取所述UE主动发起业务请求的频点的频点索引；根据所述频点索引确定对应的UE主动发起业务请求的频点。可选地，所述UE根据所述UE的标识与所述UE主动发起业务请求的频点的频点个数取模得到所述频点索引。
在本实施例中，还提供了一种频点选择方法，图27是根据本发明实施例的还一种频点选择方法四的流程图，如图27所示，该方法包括：
步骤S2702，基站确定业务频点列表，其中，所述业务频点列表中包括用于承载业务的频点，所述业务频点列表用于用户设备UE按照预设规则在所述业务频点列表中选择频点作为发起业务请求的频点；
步骤S2704，所述基站在多频点小区的广播信息中携带所述业务频点列表。
作为一种优选实施方式，如果UE接收到上述实施例中给出的指定业务频点的信息时，可以按照上述方法在指定的业务频点信息上进行后续的业务流程；如果UE未接收到上述实施例中给出的指定业务频点的信息时，则可以按照本实施例中给出的预设规则选择业务频点，并在所述业务频点上进行后续的业务流程。
下面结合优选实施例进行说明，以下优选实施例结合了上述实施例及其优选实施方式。在以下优选实施例中，提供了一种多频点小区内频点间负荷均衡的方法与设备，其中，该方法的具体策略如下：
当eNodeB收到无线资源控制RRC连接请求或RRC连接恢复请求时，如果承载该UE的目标小区是多频点小区，则eNodeB在小区内根据负荷情况选择承载业务的频点，并将选择的业务频点信息携带在RRC连接建立消息或RRC连接恢复消息发送给UE。
UE收到RRC连接建立消息或RRC连接恢复消息后，如果消息中携带了业务频点信息，则UE后续在该业务频点上进行数据的接收与发送；如果没有携带业务频点，则在原驻留频点上进行后续的业务接收与发送。
可选地：在IDLE模式，UE驻留于承载广播信道的频点，实现方式如下：
1.小区初始选择时：UE只能监测到有广播信道的频点，所以只能选择驻留于承载广播信道的频点上；
2.小区重选时：通过广播信息配置策略来实现。在广播信息的配置时，邻区频点以承载广播信道的频点为准。这样，UE重选时自然会重选到承载广播信道的频点上。
3.RRC连接状态向IDLE模式转换时：指定UE驻留于承载广播信道的频点上。具体实现为：如果RRC释放消息或RRC连接挂起消息中携带了重定向信元，则重定向信元里的频点信息只能填写承载广播信道的频点，这样，UE就会驻留于承载广播信道的频点上；如果RRC释放消息或RRC连接挂起消息中未携带重定向信元，则UE释放后自动驻留于当前小区承载广播信道和同步信道的频点上。进一步地，小区内承载广播信道的频点可以通过SIB信息或者RRC信令来获取。
通过上述方法，能够解决的技术问题是提出一种多频点小区内频点间负荷均衡的方法与设备，可以实现多频点小区内频点间的负荷均衡。
下面通过附图进一步详细说明本优选实施例给出的多频点小区内频点间负荷均衡的方法与设备。
在以下优选实施例中，提供了一个多频点小区的示例。其中：
小区包括五个频点：
第一个频点可以作为空闲模式的驻留频点：其中配置了广播信道(PBCH)，同步信道(PSS/SSS)，小区参考信道(CRS)、业务信道(PDCCH/PDSCH)，第二、三、四、五个频点只可以作为业务承载频点，所以只配置了小区参考信道(CRS)、业务信道(PDCCH/PDSCH)。
实施例一
图13是根据本发明实施例一的流程图。本实施例对RRC连接建立时多频点小区内频点间负荷均衡流程进行说明。
步骤1301：UE发送随机接入前导给小区的频点1；
步骤1302：频点1向UE发送随机接入响应；
步骤1303：UE发送RRC连接建立请求给小区的频点1，其中，包含UE的多频点支持能力信息，和/或NRSRP值；
步骤1304：小区的基站进行业务频点选择；
步骤1305：频点1向UE发送RRC连接建立消息，该RRC连接建立消息中包含业务信道的频点信息为频点2；；可选地包括：频点2的NRS发射功率信息；
其中，频点2的NRS发射功率信息可以是频点2的NRS发射功率的绝对值(参数取值单位为dBm)，也可以是相对于Anchor频点(频点1)的发射功率的相对值(参数取值单位为dB或％)。
所述频点2的NRS发射功率信息提供了频点2的NRS在每个资源单元上的能量(Energy Per Resource Element，EPRE)，用于所述UE被指派到所述频点2上时，所述UE进行：RSRP测量，和/或，路损计算。
步骤1306：频点2在PDCCH上向UE发送上行授权；
步骤1307：UE向频点2发送RRC连接建立完成消息；
步骤1308：UE在频点2上进行上下行数据传输。
实施例二
图14是根据本发明实施例二的流程图。本实施例对RRC连接恢复时多频点小区内频点间负荷均衡流程进行说明。
步骤1401：UE发送随机接入前导给小区的频点1；
步骤1402：频点1向UE发送随机接入响应；
步骤1403：UE发送RRC连接恢复请求给小区的频点1，其中，包含UE的多频点支持能力信息，和/或NRSRP值；
步骤1404：小区的基站进行业务频点选择；
步骤1405：频点1向UE发送RRC连接恢复消息，该RRC连接恢复消息中包含业务信道的频点信息为频点2；；可选地包括：频点2的NRS发射功率信息；
其中，频点2的NRS发射功率信息可以是频点2的NRS发射功率的绝对值(参数取值单位为dBm)，也可以是相对于Anchor频点(频点1)的发射功率的相对值(参数取值单位为dB或％)
所述频点2的NRS发射功率信息提供了频点2的NRS在每个资源单元上的能量，用于所述UE被指派到所述频点2上时，所述UE进行：RSRP测量，和/或，路损计算。
步骤1406：频点2在PDCCH上向UE发送上行授权；
步骤1407：UE在频点2上进行上下行数据传输。
对于频点向UE发送的携带业务信道的频点信息的消息也可以是RRC连接重建立消息或者RRC连接重配置消息，实现过程与实施例一和实施例二类似，本文中不再赘述。
实施例三
图15是根据本发明实施例三的流程图。本实施例对RRC连接建立时其他小区到多频点小区的负荷均衡流程进行说明。
步骤1501：UE发送随机接入前导给小区1的频点1；
步骤1502：小区1的频点1向UE发送随机接入响应；
步骤1503：UE发送RRC连接请求给小区1的频点1，其中，包含UE的多频点支持能力信息，和/或NRSRP值；
步骤1504：小区的基站进行负荷均衡；
步骤1505：小区1的频点1向UE发送RRC连接建立消息，该RRC连接建立消息中包含小区2的业务载波信息，物理小区标识，以及业务信道的频点信息为频点2；；可选地包括：频点2的NRS发射功率信息；
其中，频点2的NRS发射功率信息是频点2的NRS发射功率的绝对值(参数取值单位为dBm)。
所述频点2的NRS发射功率信息提供了频点2的NRS在每个资源单元上的能量，用于所述UE被指派到所述频点2上时，所述UE进行：RSRP测量，和/或，路损计算。
步骤1506：小区2的频点2在PDCCH上向UE发送上行授权；
步骤1507：UE在小区2的频点2上进行上下行数据传输。
实施例四
图16是根据本发明实施例四的流程图。本实施例对RRC连接恢复时其他小区到多频点小区的负荷均衡流程进行说明。
步骤1601：UE发送随机接入前导给小区1的频点1；
步骤1602：小区1的频点1向UE发送随机接入响应；
步骤1603：UE发送RRC连接恢复请求给小区1的频点1，其中，包含UE的多频点支持能力信息，和/或NRSRP值；
步骤1604：小区的基站进行负荷均衡；
步骤1605：小区1的频点1向UE发送RRC连接恢复消息，该RRC连接恢复消息中包含小区2的业务载波信息，物理小区标识，以及业务信道的频点信息为频点2；；可选地包括：频点2的NRS发射功率信息；
其中，频点2的NRS发射功率信息是频点2的NRS发射功率的绝对值(参数取值单位为dBm)。
所述频点2的NRS发射功率信息提供了频点2的NRS在每个资源单元上的能量，用于所述UE被指派到所述频点2上时，所述UE进行：RSRP测量，和/或，路损计算。
步骤1606：小区2的频点2在PDCCH上向UE发送上行授权；
步骤1607：UE向小区2的频点2发送RRC建立完成消息；
步骤1608：UE在小区2的频点2上进行上下行数据传输。
对于频点向UE发送的携带业务信道的频点信息的消息也可以是RRC连接重建立消息或者RRC连接重配置消息，实现过程与实施例一和实施例二类似，本文中不再赘述。
实施例五
图17是根据本发明实施例五的流程图。本实施例对RRC连接恢复时eNodeB找不到UE上下文而触发RRC建立的多频点小区内频点间的负荷均衡流程进行说明。
步骤1701：UE发送随机接入前导给小区的频点1；
步骤1702：频点1向UE发送随机接入响应；
步骤1703：UE发送RRC连接请求给小区的频点1，其中，包含UE的多频点支持能力信息，和/或NRSRP值；
步骤1704：小区的基站进行业务频点选择；
步骤1705：频点1向UE发送RRC连接建立消息，该RRC连接建立消息中包含业务信道的频点信息为频点2；可选地包括：频点2的NRS发射功率信息；
其中，频点2的NRS发射功率信息可以是频点2的NRS发射功率的绝对值(参数取值单位为dBm)，也可以是相对于Anchor频点(频点1)的发射功率的相对值(参数取值单位为dB或％)。
所述频点2的NRS发射功率信息提供了频点2的NRS在每个资源单元上的能量，用于所述UE被指派到所述频点2上时所述UE进行：RSRP测量，和/或，路损计算。
步骤1706：频点2在PDCCH上向UE发送上行授权；
步骤1707：UE向频点2发送RRC连接建立完成消息；
步骤1708：UE在频点2上进行上下行数据传输。
实施例六
图18是根据本发明实施例六的流程图。本实施例对RRC连接恢复时eNodeB找不到UE上下文而触发RRC建立，且同时进行到其他的多频点小区内频点间的负荷均衡流程进行说明。
步骤1801：UE发送随机接入前导给小区1的频点1；
步骤1802：小区1的频点1向UE发送随机接入响应；
步骤1803：UE发送RRC连接请求给小区1的频点1，其中，包含UE的多频点支持能力信息，和/或NRSRP值；
步骤1804：小区的基站进行负荷均衡；
步骤1805：小区1的频点1向UE发送RRC连接建立消息，该RRC连接建立消息中包含小区2的业务载波信息，物理小区标识，以及业务信道的频点信息为频点2；可选地包括：频点2的NRS发射功率信息；
其中，频点2的NRS发射功率信息可以是频点2的NRS发射功率的绝对值(参数取值单位为dBm)。
所述频点2的NRS发射功率信息提供了频点2的NRS在每个资源单元上的能量，用于所述UE被指派到所述频点2上时，所述UE进行：RSRP测量，和/或，路损计算。
步骤1806：小区2的频点2在PDCCH上向UE发送上行授权；
步骤1807：UE向小区2的频点2发送RRC建立完成消息；
步骤1808：UE在小区2的频点2上进行上下行数据传输。
对于频点向UE发送的携带业务信道的频点信息的消息也可以是RRC连接重建立消息或者RRC连接重配置消息，实现过程与实施例一和实施例二类似，本文中不再赘述。
实施例七
图19是根据本发明实施例七的流程图。本实施例对RRC释放消息或RRC连接挂起消息中携带承载广播信道的频点信息，引导UE驻留到承载广播信道的频点上的流程进行说明。
步骤1901，频点2向UE发送RRC连接释放或RRC连接挂起消息，该消息中携带了承载广播信道的频点1信息；
步骤1902，UE进入空闲模式，并驻留到所述频点1上。
实施例八
图20是根据本发明实施例八的流程图。本实施例对在RRC连接建立或RRC恢复完成消息中携带承载广播信道的频点，但RRC释放消息或RRC连接挂起消息中未携带承载广播信道的频点信息，则UE在RRC释放或RRC连接挂起时自动驻留到RRC连接建立或RRC恢复完成消息携带的承载广播信道的频点上的流程进行说明。
步骤2001，频点2向UE发送RRC连接建立或RRC连接恢复消息，该消息中携带了承载广播信道的频点1信息；
步骤2002，频点2向UE发送RRC连接释放或RRC连接挂起消息，该消息中未携带承载广播信道的频点1信息；
步骤2003，UE进入空闲模式，并驻留到所述频点1上。
实施例九
图21是根据本发明实施例九的流程图。本实施例对在RRC连接建立或RRC恢复完成消息中未携带承载广播信道的频点，且在RRC释放消息或RRC连接挂起消息中也未携带承载广播信道的频点信息，则UE在RRC释放或RRC连接挂起时自动驻留到上次IDLE模式驻留的频点的流程进行说明。
步骤2101，频点1发送广播消息；
步骤2102，频点2与UE进行上下行数据传输；
步骤2103，频点2向UE发送RRC连接释放或RRC连接挂起消息，该消息未携带承载广播信道的频点1信息；
步骤2104，UE进入空闲模式，并驻留到所述频点1上。
实施例十
图22是根据本发明实施例十的流程图。本实施例对UE在多频点小区的广播信息中携带可以承载寻呼消息(Paging)的频点列表，UE按照预定义规则选择其中的一个频点作为接收寻呼和/或承载业务的频点的流程进行说明。
步骤2201，频点1发送广播消息给UE1，该消息中携带可以承载寻呼消息(Paging)信息的频点列表；
步骤2202，频点1发送广播消息给UE2，该消息中携带可以承载寻呼消息(Paging)信息的频点列表；
步骤2203，UE1通过预定义规则确定频点2承载该UE的寻呼及业务信息，小区通过频点2向UE1发起寻呼；
步骤2204，频点2与UE1进行连接模式的数据通讯；
步骤2205，UE2通过预定义规则确定频点3承载该UE的寻呼及业务信息，小区通过频点3向UE2发起寻呼；
步骤2206，频点3与UE2进行连接模式的数据通讯。
其中的预定义规则可以是UE ID与承载寻呼消息(Paging)的频点个数取模得到对应的频点索引，或者其他类似的策略。
其中，承载寻呼消息(Paging)的频点列表也可以为多频点小区的所有频点列表，此时表示所有频点都可以承载寻呼消息。
在IDLE模式下，UE可以采用跳频的方式监控承载广播信道的频点和承载自己寻呼消息的频点。其中，在寻呼时机(Paging Occasion)和后续寻呼消息接收阶段，UE监控承载自己寻呼消息的频点；其他时刻，监控承载广播信道的频点，以便接收系统广播和保持与网络的同步。
实施例十一
图23是根据本发明实施例十一的流程图。本实施例对多频点小区的承载寻呼指示信息(P-TMSI等信息)的PDCCH在承载广播信道的频点发送的流程进行说明。其中承载寻呼指示信息(P-TMSI等信息)的PDCCH指示后续的寻呼信息和/或承载业务的频点，UE在指示 的频点上进行后续的寻呼信息和/或业务收发。
步骤2301，频点1向UE1发送PDCCH，在PDCCH中携带寻呼指示信息，以指定UE的业务频点为频点2；
步骤2302，频点2与UE1进行连接模式的数据通讯；
步骤2303，频点1向UE2发送PDCCH，在PDCCH中携带寻呼指示信息，以指定UE的业务频点为频点3；
步骤2304，频点3与UE2进行连接模式的数据通讯。
实施例十二
图24是根据本发明实施例十二的流程图。本实施例对多频点小区中UE触发的业务接入请求时的频点选择流程进行说明。
步骤2401，UE2监控承载广播信道的频点1并接收广播信息，其中，广播信息中携带可以承载业务信息的频点列表；
步骤2402，UE1监控承载广播信道的频点1并接收广播信息，其中，广播信息中携带可以承载业务信息的频点列表；
步骤2403，UE1按照预定义规则选择其中的一个频点2作为业务信息的频点发起随机接入请求(Msg1PRACH Preamble)；
步骤2404，UE1在该频点2上进行后续连接模式的数据通讯；
步骤2405，UE2按照预定义规则选择其中的一个频点3作为业务信息的频点发起随机接入请求(Msg1PRACH Preamble)；
步骤2406，UE2在该频点3上进行后续连接模式的数据通讯。
其中，预定义规则可以是通过UE ID与业务频点个数取模来确定业务频点，或者其他类似方法。
图25是根据本发明实施例十三的流程图。本实施例对eNodeB通过系统消息块向UE发送业务载波的NRS发射功率的方法进行说明。
在本实施例中，eNodeB向UE发送广播消息，其中包含两个信元：
NRS发射功率，用于指示Anchor载波的NRS发射功率；
Non-Anchor载波的NRS发射功率，用于指示Non-Anchor载波的NRS发射功率。
其中，Non-Anchor载波的NRS发射功率可以是发射功率的绝对值，比如取值范围为 (-60...50)dBm。
Non-Anchor载波的NRS发射功率也可以是相对于Anchor载波的NRS发射功率的绝对值，比如取值范围为(-30...30)dB或者(0…100)％。
需要说明的是，上述各个模块是可以通过软件或硬件来实现的，对于后者，可以通过以下方式实现，但不限于此：上述模块均位于同一处理器中；或者，上述模块分别位于多个处理器中。
本发明的实施例还提供了一种存储介质。可选地，在本实施例中，上述存储介质可以被设置为存储用于执行以下步骤的程序代码：
步骤S102，用户设备UE判断是否接收到基站发送的频点的信息，其中所述频点为在承载所述UE的目标小区为多频点小区的情况下，所述基站根据负荷情况选择的承载业务的频点；
步骤S104，如果是，则所述UE驻留在所述频点的信息对应的频点上；否则，所述UE驻留在原驻留频点上。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：
步骤S302，基站判断承载用户设备UE的目标小区是否为多频点小区；
步骤S304，如果是，则所述基站在所述目标小区内根据负荷情况选择承载业务的频点，并将选择的所述频点的信息发送给所述UE。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：
步骤S502，UE判断多频点小区的广播信息中是否携带的寻呼频点列表，和/或寻呼频点个数，其中，所述寻呼频点列表中包括用于承载寻呼消息的频点；所述寻呼频点个数用于确定寻呼频点列表。
步骤S504，如果是，则所述UE按照预设规则在所述寻呼频点列表中选择频点作为接收寻呼和/或承载业务的频点。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：
步骤S702，基站确定寻呼频点列表，和/或寻呼频点个数。其中，所述寻呼频点列表中包括用于承载寻呼消息的频点，所述寻呼频点列表用于UE按照预设规则在所述寻呼频点列表中选择频点作为接收寻呼和/或承载业务的频点；所述寻呼频点个数用于确定寻呼频点列表。
步骤S704，所述基站在多频点小区的广播信息中携带所述寻呼频点列表，和/或寻呼频点个数。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：
步骤S902，UE通过承载寻呼指示信息的PDCCH来获取承载寻呼信息和/或承载业务的频点；
步骤S904，所述UE在所述频点上进行后续的寻呼信息和/或业务的传输。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：
步骤S1102，基站确定承载寻呼信息和/或承载业务的频点；
步骤S1104，所述基站通过承载寻呼指示信息的PDCCH向UE指示承载寻呼信息和/或承载业务的频点，所述频点用于所述UE在所述频点上进行后续的寻呼信息和/或业务的传输。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：
UE判断多频点小区的广播信息中是否携带业务频点列表，其中，所述业务频点列表中包括用于承载业务的频点；
如果是，则所述UE按照预设规则在所述业务频点列表中选择频点作为UE主动发起业务请求的频点。
可选地，存储介质还被设置为存储用于执行以下步骤的程序代码：
基站确定业务频点列表，其中，所述业务频点列表中包括用于承载业务的频点，所述业务频点列表用于用户设备UE按照预设规则在所述业务频点列表中选择频点作为发起业务请求的频点；
所述基站在多频点小区的广播信息中携带所述业务频点列表。
可选地，在本实施例中，上述存储介质可以包括但不限于：U盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。
可选地，本实施例中的具体示例可以参考上述实施例及可选实施方式中所描述的示例，本实施例在此不再赘述。
显然，本领域的技术人员应该明白，上述的本发明的各模块或各步骤可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，可选地，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，并且在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤，或者将它们分别制作成各个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样，本发明不限制于任何特定的硬件和软件结合。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。
工业实用性
如上所述，本发明实施例提供的一种频点选择方法及装置，具有以下有益效果：解决了 相关技术中的业务频点选择策略是被动选择，缺少主动性的问题，从技术上给出了实现对承载业务的频点的负荷均衡的基础，进一步对以小数据传输为主的NB-IoT系统来说，提升了系统效率。

Claims (55)

  1. 一种频点选择方法，包括：
    用户设备UE判断是否接收到基站发送的业务频点的信息，其中所述业务频点为在承载所述UE的目标小区为多频点小区的情况下，所述基站选择的承载业务的频点；
    如果是，则所述UE驻留在所述业务频点的信息对应的频点上；否则，所述UE驻留在原驻留频点上。
  2. 根据权利要求1所述的方法，其中，UE判断是否接收到基站发送的业务频点的信息包括：
    所述UE接收无线资源控制RRC连接建立消息、或RRC连接恢复消息、或RRC连接重建立消息、或RRC连接重配置消息；
    所述UE判断接收到的所述RRC连接建立消息、或RRC连接恢复消息、或RRC连接重建立消息、或RRC连接重配置消息中是否携带所述业务频点的信息。
  3. 根据权利要求1所述的方法，其中，
    在所述UE判断接收到所述基站发送的所述业务频点的信息的情况下，在所述业务频点上进行所述UE的后续流程；否则，在当前驻留频点上进行所述UE的后续流程。
  4. 根据权利要求3所述的方法，其中，所述UE的后续流程包括所述UE在当前连接模式下的以下过程至少之一：
    当前连接模式下数据收发过程、当前连接模式下信令收发过程及当前连接模式下的随机接入过程。
  5. 根据权利要求4所述的方法，其中，
    所述业务频点的随机接入参数采用小区广播的随机接入参数。
  6. 根据权利要求1所述的方法，根据权利要求1所述的方法，其中，
    当承载于多频点小区的UE从连接模式转换为空闲模式时，UE驻留频点的选择策略为：
    在判断结果为接收到基站发送RRC释放消息、或RRC连接挂起消息，其中所述RRC释放消息、或RRC连接挂起消息中携带有所述业务频点的信息的情况下，所述UE驻留在所述RRC释放消息或RRC连接挂起消息中携带的所述业务频点的信息对应的频点上；或者，
    在判断结果为接收到基站发送RRC释放消息、或RRC连接挂起消息、和/或RRC连接建立消息、和/或RRC连接恢复消息，其中所述RRC释放消息、和/或RRC连接挂起消息中未携带有所述业务频点的信息,但RRC连接建立消息、或RRC连接恢复消息中携带有所述业务频点的信息的情况下，所述UE驻留在RRC连接建立消息、或RRC连接恢复消息中携带的所述业务频点的信息对应的频点上；或者，
    在判断结果为接收到基站发送RRC释放消息、或RRC连接挂起消息、和/或RRC连接建立消息、和/或RRC连接恢复消息，其中所述RRC释放消息、RRC连接挂起消息、和/或RRC连接建立消息、和/或RRC连接恢复消息中都未携带有所述业务频点的信息的情况下，所述UE驻留至上次空闲模式下所述UE驻留的频点上。
  7. 根据权利要求1至6中任一项所述的方法，其中，在所述UE接收到基站发送的业务频点的信息之前，还包括：
    所述UE发送所述UE的多频点支持能力信息给所述基站，其中，所述UE的多频点支持能力信息用于指示所述UE是否支持多频点功能。
  8. 根据权利要求7所述的方法，其中，所述UE的多频点支持能力信息通过以下消息之一携带：
    RRC连接请求，RRC连接恢复请求，RRC连接重建立请求。
  9. 根据权利要求8所述的方法，其中，所述UE支持多频点功能是指所述UE允许接受所述基站配置的所述业务频点的信息。
  10. 根据权利要求1至6中任一项所述的方法，其中，所述UE接收到基站发送的业务频点的信息，还包括：
    所述UE接收所述基站发送的所述业务频点的窄带参考信号NRS的发射功率信息。
  11. 根据权利要求10所述的方法，其中，UE接收所述基站发送的所述业务频点的窄带参考信号NRS的发射功率信息包括：
    所述UE接收系统信息块SIB、或无线资源控制RRC连接建立消息、或RRC连接恢复消息、或RRC连接重建立消息、或RRC连接重配置消息；
    所述UE从接收到的所述系统信息块SIB、或RRC连接建立消息、或RRC连接恢复消息、或RRC连接重建立消息、或RRC连接重配置消息中获取所述业务频点的窄带参考信号NRS的发射功率信息。
  12. 根据权利要求10所述的方法，其中，所述业务频点的NRS发射功率信息提供了NRS在每个资源单元上的能量EPRE，用于所述UE被指派到所述业务频点上时，所述UE进行参考信号接收功率RSRP测量和/或路损计算。
  13. 根据权利要求10所述的方法，其中，还包括：
    所述业务频点的NRS发射功率信息通过相对于锚定频点NRS功率的偏差来表征；或者，
    所述业务频点对应的NRS发射功率信息通过所述业务频点NRS功率的绝对值来表征。
  14. 根据权利要求1至6中任一项所述的方法，其中，在所述UE接收到基站发送的业务频 点的信息之前，还包括：
    所述UE发送窄带参考信号接收功率NRSRP值给所述基站，其中，所述NRSRP值为所述UE测量到的锚定Anchor载波上承载窄带参考信号的资源单元上的功率值，或者为所述UE基于测量到的Anchor载波上承载窄带参考信号的资源单元上的功率值加预定义偏置值，所述NRSRP值用于所述基站判断所述UE的下行无线覆盖质量。
  15. 根据权利要求14所述的方法，其中，所述UE测量的窄带参考信号接收功率NRSRP值通过以下消息之一携带：
    RRC连接请求，RRC连接恢复请求，RRC连接重建立请求。
  16. 根据权利要求14所述的方法，其中，所述预定义偏置值为：非锚定Non-anchor载波NRS功率相对于Anchor载波NRS功率的功率差。
  17. 根据权利要求10至13任一项所述的方法，其中，当UE的初始物理随机接入信道PRACH承载于Non-Anchor载波上时，所述UE在所述Non-Anchor载波的无线覆盖级别的确定方法包括：
    所述UE将测量到的Anchor载波的窄带参考信号接收功率NRSRP值加预定义偏移值与无线覆盖级别门限进行比较来获取。
  18. 根据权利要求17所述的方法，其中，所述预定义偏移值可以为：Non-anchor载波窄带参考信号NRS功率相对于Anchor载波NRS功率的功率差。
  19. 根据权利要求17所述的方法，其中，UE的初始物理随机接入信道PRACH承载于Non-Anchor载波上为初始PRACH过程，其中，所述初始PRACH过程指除物理下行控制信道指令PDCCH order触发的PRACH过程以外的PRACH过程。
  20. 一种频点选择方法，包括：
    基站判断承载用户设备UE的目标小区是否为多频点小区；
    如果是，则所述基站发送业务频点的信息给所述UE，其中，所述业务频点为所述基站为所述UE选择的承载业务的频点。
  21. 根据权利要求20所述的方法，其中，在基站判断承载UE的目标小区是否为多频点小区之前，还包括：
    所述基站收到所述UE的无线资源控制RRC连接请求、或RRC连接恢复请求、或RRC连接重建立请求。
  22. 根据权利要求21所述的方法，其中，在所述基站收到所述UE的无线资源控制RRC连接请求、或RRC连接恢复请求、或RRC连接重建立请求之后，还包括：
    所述基站从接收到的所述RRC连接请求、或RRC连接恢复请求、或RRC连接重建 立请求中，获取所述UE的多频点支持能力信息，其中，所述UE的多频点支持能力信息用于指示所述UE是否支持多频点功能。
  23. 根据权利要求22所述的方法，其中，在所述UE的多频点支持能力信息指示所述UE支持多频点功能的情况下，还包括：
    所述基站为所述UE选择多频点小区的业务频点并配置业务频点信息。
  24. 根据权利要求20所述的方法，其中，所述基站发送业务频点的信息给所述UE包括：
    所述基站将所述业务频点的信息携带在RRC连接建立消息中发送给所述UE；或者，
    所述基站将所述业务频点的信息携带在RRC连接恢复消息中发送给所述UE；或者，
    所述基站将所述业务频点的信息携带在RRC连接重建立消息中发送给所述UE；或者，
    所述基站将所述业务频点的信息携带在RRC连接重配置消息中发送给所述UE。
  25. 根据权利要求24所述的方法，其中，所述基站发送业务频点的信息给所述UE还包括：
    所述基站在给所述UE发送所述业务频点的NRS发射功率信息。
  26. 根据权利要求25所述的方法，其中，所述基站给所述UE发送业务频点的NRS发射功率信息还包括：
    所述基站将所述业务频点的NRS发射功率信息携带在系统消息块SIB中发送给所述UE；或者，
    所述基站将所述业务频点的NRS发射功率信息携带在RRC连接建立消息中发送给所述UE；或者，
    所述基站将所述业务频点的NRS发射功率信息携带在RRC连接恢复消息中发送给所述UE；或者，
    所述基站将所述业务频点的NRS发射功率信息携带在RRC连接重建立消息中发送给所述UE；或者，
    所述基站将所述业务频点的NRS发射功率信息携带在RRC连接重配置消息中发送给所述UE。
  27. 根据权利要求25所述的方法，其中，所述业务频点的NRS发射功率信息提供了NRS在每个资源单元上的能量，用于所述UE被指派到所述业务频点上时，所述UE进行RSRP测量和/或路损计算。
  28. 根据权利要求25所述的方法，其中，还包括：
    所述业务频点对应的NRS发射功率信息通过相对于锚定频点NRS功率的偏差来表征； 或者，
    所述业务频点对应的NRS发射功率信息通过所述业务频点NRS功率的绝对值来表征。
  29. 根据权利要求20所述的方法，其中，
    在所述基站发送业务频点的信息给所述UE的情况下，所述基站在所述业务频点上进行对所述UE的后续流程；否则，所述基站对所述UE的后续流程在当前驻留频点上进行。
  30. 根据权利要求29所述的方法，其中，所述基站对所述UE进行的后续流程包括所述UE在当前连接模式下的以下过程至少之一：
    当前连接模式下数据收发过程，当前连接模式下信令收发过程，及当前连接模式下的随机接入过程。
  31. 根据权利要求30所述的方法，其中，所述方法还包括：
    所述基站广播随机接入参数给所述UE，所述随机接入参数适用于小区内所有频点。
  32. 根据权利要求20所述的方法，其中，所述基站发送业务频点的信息给所述UE包括：
    所述基站将所述业务频点的信息携带在RRC释放消息或RRC连接挂起消息中发送给所述UE，其中，所述业务频点的信息为承载广播信道的频点对应的信息。
  33. 根据权利要求16所述的方法，其中，在所述基站收到所述UE的无线资源控制RRC连接请求、或RRC连接恢复请求、或RRC连接重建立请求之后，还包括：
    所述基站从接收到的所述RRC连接请求、或RRC连接恢复请求、或RRC连接重建立请求中，获取窄带参考信号接收功率NRSRP的值，所述NRSRP值表示UE接收到的承载窄带参考信号的资源单元上的功率值，所述NRSRP值用于所述基站判断所述UE的下行无线覆盖质量。
  34. 根据权利要求33所述的方法，其中，所述方法还包括：
    所述基站基于所述NRSRP值来确定后续以下至少之一：无线覆盖级别、上行无线覆盖级别、下行无线覆盖级别、上行信道的物理层重复发送次数、下行信道的物理层重复发送次数。
  35. 一种频点选择方法，包括：
    用户设备UE判断多频点小区的广播信息中是否携带的寻呼频点列表，和/或寻呼频点个数，其中，所述寻呼频点列表中包括用于承载寻呼消息的频点；所述寻呼频点个数用于确定寻呼频点列表；
    如果是，则所述UE按照预设规则在所述寻呼频点列表中选择频点作为接收寻呼和/或承载业务的频点。
  36. 根据权利要求35所述的方法，其中，所述UE按照预设规则在所述寻呼频点列表中选择频点作为接收寻呼和/或承载业务的频点包括：
    所述UE按照所述预设规则获取所述接收寻呼和/或承载业务的频点对应的频点索引；
    根据所述频点索引确定对应的接收寻呼和/或承载业务的频点。
  37. 根据权利要求36所述的方法，其中，所述UE按照所述预设规则获取所述接收寻呼和/或承载业务的频点对应的频点索引包括：
    所述UE根据所述UE的标识与承载所述寻呼消息的频点个数取模得到对应的频点索引。
  38. 一种频点选择方法，包括：
    基站确定寻呼频点列表，和/或寻呼频点个数，其中，所述寻呼频点列表中包括用于承载寻呼消息的频点，所述寻呼频点列表用于用户设备UE按照预设规则在所述寻呼频点列表中选择频点作为接收寻呼和/或承载业务的频点；所述寻呼频点个数用于确定寻呼频点列表；
    所述基站在多频点小区的广播信息中携带所述寻呼频点列表，和/或寻呼频点个数。
  39. 一种频点选择方法，包括：
    用户设备UE通过承载寻呼指示信息的物理下行控制信道PDCCH来获取承载寻呼信息和/或承载业务的频点；
    所述UE在所述频点上进行后续的寻呼信息和/或业务的传输。
  40. 根据权利要求39所述的方法，其中，UE通过承载寻呼指示信息的PDCCH来获取承载寻呼信息和/或承载业务的频点包括：
    所述UE通过广播接收多频点小区中承载寻呼消息信息和/或业务的频点的频点列表；
    所述UE在PDCCH中获取所述承载寻呼信息和/或承载业务的频点在所述频点列表中的索引。
  41. 根据权利要求40所述的方法，其中，所述UE在PDCCH中获取所述承载寻呼信息和/或承载业务的频点在所述频点列表中的索引包括：
    所述UE通过DCI在所述PDCCH中获取所述承载寻呼信息和/或承载业务的频点在所述频点列表中的索引。
  42. 一种频点选择方法，包括：
    基站确定承载寻呼信息和/或承载业务的频点；
    所述基站通过承载寻呼指示信息的PDCCH向用户设备UE指示承载寻呼信息和/或 承载业务的频点，所述频点用于所述UE在所述频点上进行后续的寻呼信息和/或业务的传输。
  43. 根据权利要求42所述的方法，其中，所述基站通过承载寻呼指示信息的PDCCH向UE指示承载寻呼信息和/或承载业务的频点包括：
    所述基站通过广播的方式发送多频点小区中承载寻呼消息信息和/或业务的频点的频点列表给所述UE；
    所述基站在PDCCH中携带所述承载寻呼消息信息和/或业务的频点在所述频点列表中的索引。
  44. 根据权利要求43所述的方法，其中，所述基站在PDCCH中携带所述承载寻呼消息信息和/或业务的频点在所述频点列表中的索引包括：
    所述基站通过下行控制信息DCI在所述PDCCH中携带所述承载寻呼消息信息和/或业务的频点在所述频点列表中的索引。
  45. 一种频点选择方法，包括：
    用户设备UE判断多频点小区的广播信息中是否携带业务频点列表，其中，所述业务频点列表中包括用于承载业务的频点；
    如果是，则所述UE按照预设规则在所述业务频点列表中选择频点作为UE主动发起业务请求的频点。
  46. 根据权利要求45所述的方法，其中，所述UE按照预设规则在所述业务频点列表中选择频点作为发起业务请求的频点包括：
    所述UE按照所述预设规则获取所述UE主动发起业务请求的频点的频点索引；
    根据所述频点索引确定对应的UE主动发起业务请求的频点。
  47. 根据权利要求46所述的方法，其中，所述UE按照所述预设规则获取UE主动发起业务请求的频点的频点索引包括：
    所述UE根据所述UE的标识与所述UE主动发起业务请求的频点的频点个数取模得到所述频点索引。
  48. 一种频点选择方法，包括：
    基站确定业务频点列表，其中，所述业务频点列表中包括用于承载业务的频点，所述业务频点列表用于用户设备UE按照预设规则在所述业务频点列表中选择频点作为发起业务请求的频点；
    所述基站在多频点小区的广播信息中携带所述业务频点列表。
  49. 一种频点选择装置，位于用户设备UE，包括：
    第一判断模块，设置为判断是否接收到基站发送的业务频点的信息，其中所述业务频点为在承载所述UE的目标小区为多频点小区的情况下，所述基站选择的承载业务的频点；
    驻留模块，设置为在判断结果为是的情况下，驻留在所述业务频点的信息对应的频点上；或者在判断结果为否的情况下，驻留在原驻留频点上。
  50. 一种频点选择装置，位于基站，包括：
    第二判断模块，设置为判断承载用户设备UE的目标小区是否为多频点小区；
    第一发送模块，设置为在判断结果为是的情况下，发送业务频点的信息给所述UE，其中，所述业务频点为所述基站为所述UE选择的承载业务的频点。
  51. 一种频点选择装置，位于用户设备UE，包括：
    第三判断模块，设置为判断多频点小区的广播信息中是否携带的寻呼频点列表，和/或寻呼频点个数，其中，所述寻呼频点列表中包括用于承载寻呼消息的频点；所述寻呼频点个数用于确定寻呼频点列表；
    选择模块，设置为在判断结果为是的情况下，按照预设规则在所述寻呼频点列表中选择频点作为接收寻呼和/或承载业务的频点。
  52. 一种频点选择装置，位于基站，包括：
    第一确定模块，设置为确定寻呼频点列表，和/或寻呼频点个数，其中，所述寻呼频点列表中包括用于承载寻呼消息的频点，所述寻呼频点列表用于用户设备UE按照预设规则在所述寻呼频点列表中选择频点作为接收寻呼和/或承载业务的频点；所述寻呼频点个数用于确定寻呼频点列表；
    第二发送模块，设置为在多频点小区的广播信息中携带所述寻呼频点列表，和/或寻呼频点个数。
  53. 一种频点选择装置，位于用户设备UE，包括：
    获取模块，设置为通过承载寻呼指示信息的PDCCH来获取承载寻呼信息和/或承载业务的频点；
    传输模块，设置为在所述频点上进行后续的寻呼信息和/或业务的传输。
  54. 一种频点选择装置，位于基站，包括：
    第二确定模块，设置为确定承载寻呼信息和/或承载业务的频点；
    第三发送模块，设置为通过承载寻呼指示信息的PDCCH向用户设备UE指示承载寻 呼信息和/或承载业务的频点，所述频点用于所述UE在所述频点上进行后续的寻呼信息和/或业务的传输。
  55. 一种计算机存储介质，设置为存储用于执行如权利要求1至19中任一项所述的自定义键盘的布局方法的计算机程序。
PCT/CN2017/072270 2016-02-06 2017-01-23 频点选择方法及装置 WO2017133550A1 (zh)

Priority Applications (7)

Application Number Priority Date Filing Date Title
PL17746870.9T PL3413609T3 (pl) 2016-02-06 2017-01-23 Urządzenie i sposób do wybierania punktu częstotliwości
KR1020187024940A KR102279620B1 (ko) 2016-02-06 2017-01-23 주파수 포인트 선택 방법 및 디바이스
EP17746870.9A EP3413609B1 (en) 2016-02-06 2017-01-23 Frequency point selection method and device
JP2018541153A JP6827475B2 (ja) 2016-02-06 2017-01-23 サービスキャリア周波数選択方法および装置
US16/055,813 US11212848B2 (en) 2016-02-06 2018-08-06 Service carrier frequency selecting method and apparatus
US17/457,416 US11723085B2 (en) 2016-02-06 2021-12-02 Service carrier frequency selecting method and apparatus
US18/357,080 US20230363025A1 (en) 2016-02-06 2023-07-21 Service carrier frequency selecting method and apparatus

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
CN201610084117.1 2016-02-06
CN201610084117 2016-02-06
CN201610140659 2016-03-11
CN201610140659.6 2016-03-11
CN201610666760.5 2016-08-12
CN201610666760 2016-08-12
CN201610877947.X 2016-09-30
CN201610877947.XA CN107046707B (zh) 2016-02-06 2016-09-30 频点选择方法及装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US16/055,813 Continuation US11212848B2 (en) 2016-02-06 2018-08-06 Service carrier frequency selecting method and apparatus

Publications (1)

Publication Number Publication Date
WO2017133550A1 true WO2017133550A1 (zh) 2017-08-10

Family

ID=59500093

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/072270 WO2017133550A1 (zh) 2016-02-06 2017-01-23 频点选择方法及装置

Country Status (1)

Country Link
WO (1) WO2017133550A1 (zh)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109413750A (zh) * 2018-12-07 2019-03-01 京信通信系统（中国）有限公司 一种频点确定方法及装置
JP2019047291A (ja) * 2017-08-31 2019-03-22 株式会社Ｎｔｔドコモ 基地局及びキャリア選択方法
CN110574419A (zh) * 2018-07-23 2019-12-13 深圳市汇顶科技股份有限公司 跨无线频段的灵活的NB-IoT多载波操作
CN110691421A (zh) * 2018-07-06 2020-01-14 华为技术有限公司 数据传输方法及装置
CN110933744A (zh) * 2019-12-13 2020-03-27 Oppo广东移动通信有限公司 通信配置选择方法及相关产品
CN112913175A (zh) * 2018-08-01 2021-06-04 苹果公司 用于测量和同步的窄带参考信号传输
CN115087099A (zh) * 2022-08-19 2022-09-20 翱捷科技股份有限公司 一种寻呼信道的增强接收装置和方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101547513A (zh) * 2008-03-25 2009-09-30 华为技术有限公司 一种多频点系统中控制用户设备接入的方法及网络设备
CN101605352A (zh) * 2008-06-13 2009-12-16 华为技术有限公司 一种基于多载波的测量上报方法、系统、网络设备及终端
CN101841868A (zh) * 2009-03-16 2010-09-22 大唐移动通信设备有限公司 一种邻小区列表获取方法和系统以及一种终端
US20130301442A1 (en) * 2012-05-11 2013-11-14 Renesas Mobile Corporation Measurement reporting

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101547513A (zh) * 2008-03-25 2009-09-30 华为技术有限公司 一种多频点系统中控制用户设备接入的方法及网络设备
CN101605352A (zh) * 2008-06-13 2009-12-16 华为技术有限公司 一种基于多载波的测量上报方法、系统、网络设备及终端
CN101841868A (zh) * 2009-03-16 2010-09-22 大唐移动通信设备有限公司 一种邻小区列表获取方法和系统以及一种终端
US20130301442A1 (en) * 2012-05-11 2013-11-14 Renesas Mobile Corporation Measurement reporting

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3413609A4 *

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019047291A (ja) * 2017-08-31 2019-03-22 株式会社Ｎｔｔドコモ 基地局及びキャリア選択方法
CN110691421B (zh) * 2018-07-06 2023-09-12 华为技术有限公司 数据传输方法及装置
CN110691421A (zh) * 2018-07-06 2020-01-14 华为技术有限公司 数据传输方法及装置
US11778681B2 (en) 2018-07-06 2023-10-03 Huawei Technologies Co., Ltd. Data transmission method and apparatus
CN110574419A (zh) * 2018-07-23 2019-12-13 深圳市汇顶科技股份有限公司 跨无线频段的灵活的NB-IoT多载波操作
CN110574419B (zh) * 2018-07-23 2023-12-08 深圳市汇顶科技股份有限公司 跨无线频段的灵活的NB-IoT多载波操作
US11903002B2 (en) 2018-07-23 2024-02-13 Shenzhen GOODIX Technology Co., Ltd. Flexible NB-IoT multi-carrier operation across radio frequency bands
CN112913175A (zh) * 2018-08-01 2021-06-04 苹果公司 用于测量和同步的窄带参考信号传输
CN109413750A (zh) * 2018-12-07 2019-03-01 京信通信系统（中国）有限公司 一种频点确定方法及装置
CN110933744A (zh) * 2019-12-13 2020-03-27 Oppo广东移动通信有限公司 通信配置选择方法及相关产品
CN110933744B (zh) * 2019-12-13 2023-05-26 Oppo广东移动通信有限公司 通信配置选择方法及相关产品
CN115087099A (zh) * 2022-08-19 2022-09-20 翱捷科技股份有限公司 一种寻呼信道的增强接收装置和方法
CN115087099B (zh) * 2022-08-19 2022-11-15 翱捷科技股份有限公司 一种寻呼信道的增强接收装置和方法

Similar Documents

Publication Publication Date Title
US11723085B2 (en) Service carrier frequency selecting method and apparatus
US11240747B2 (en) User terminal and mobile communication method
US10652725B2 (en) Obtaining and using D2D related information to perform mobility operation(s)
WO2017133550A1 (zh) 频点选择方法及装置
US10251160B2 (en) D2D operation method performed by terminal in wireless communication system and terminal using same
CN108770074B (zh) 实现设备直通中继选择的方法、网络控制节点和用户设备
US9313607B2 (en) Network-assisted UE detection in direct mode UE-to-UE communication
US10264520B2 (en) Method of supporting mobility of UE supporting/using D2D communication in wireless mobile communication system
JP2020092453A (ja) ネットワークスライシングをサポートする通信システム
KR102052146B1 (ko) 무선 통신 시스템에서 단말에 의해 수행되는 d2d(device-to-device) 동작 방법 및 상기 방법을 이용하는 단말
WO2015115847A1 (ko) 무선 통신 시스템에서 단말에 의해 수행되는 d2d 동작 방법 및 상기 방법을 이용하는 단말
WO2015147617A1 (ko) 무선 통신 시스템에서 단말에 의해 수행되는 d2d(device-to-device) 동작 방법 및 상기 방법을 이용하는 단말
US9485630B2 (en) Methods and devices for enabling reception of a specific service for terminals in idle mode
CN103975628A (zh) 多载波多无线接入技术网络中的信道选择
WO2015142147A1 (ko) 무선 통신 시스템에서 단말에 의해 수행되는 d2d(device-to-device) 동작 방법 및 상기 방법을 이용하는 단말
US10334610B2 (en) Method, carried out by user equipment, for transmitting priority information in wireless communication system and user equipment utilizing the method
WO2015167305A1 (ko) 무선 통신 시스템에서 단말에 의해 수행되는 d2d(device-to-device) 동작 방법 및 상기 방법을 이용하는 단말
WO2015115837A1 (ko) 무선 통신 시스템에서 단말에 의해 수행되는 d2d 동작 방법 및 상기 방법을 이용하는 단말
WO2016072711A2 (ko) 무선 통신 시스템에서 단말이 d2d(device-to-device) 동작을 위한 동기화 신호를 전송하는 방법 및 상기 방법을 이용하는 단말
JP2015515200A (ja) 負荷バランシング
KR101715626B1 (ko) 주파수 천이를 지원하는 무선 통신 시스템, 이를 운영하는 펨토 기지국 및 이의 운영 방법

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17746870

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2018541153

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 20187024940

Country of ref document: KR

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 2017746870

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2017746870

Country of ref document: EP

Effective date: 20180906