WO2017035757A1 - 一种接入小区的方法、装置及系统 - Google Patents

一种接入小区的方法、装置及系统 Download PDF

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Publication number
WO2017035757A1
WO2017035757A1 PCT/CN2015/088658 CN2015088658W WO2017035757A1 WO 2017035757 A1 WO2017035757 A1 WO 2017035757A1 CN 2015088658 W CN2015088658 W CN 2015088658W WO 2017035757 A1 WO2017035757 A1 WO 2017035757A1
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WIPO (PCT)
Prior art keywords
target cell
coverage
coverage information
terminal device
cell
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PCT/CN2015/088658
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English (en)
French (fr)
Inventor
朱松
于光炜
于映辉
Original Assignee
华为技术有限公司
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.)
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201580046740.1A priority Critical patent/CN106688278A/zh
Priority to PCT/CN2015/088658 priority patent/WO2017035757A1/zh
Publication of WO2017035757A1 publication Critical patent/WO2017035757A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method, device, and system for accessing a cell.
  • M2M Machine-to-Machine
  • the business scenarios of M2M mainly include smart home/building, intelligent measurement (meter reading service), logistics tracking, and environmental monitoring. Intelligent agriculture and disaster alarms.
  • Different business scenarios have different requirements for communication systems. For example, for smart measurement, business meters, water meters, gas meters, etc. may be deployed in the basement. Therefore, in this business scenario, the communication system needs to provide better. Coverage ability. For example, in the business scenario of forest fire alarm, stricter requirements are imposed on the standby time of the terminal equipment. The longer the standby time, the lower the manual maintenance cost of replacing the battery, etc., which is beneficial to the wider application field of the M2M service. .
  • the terminal device in the M2M network mainly selects the camped cell according to the strength of the reference signal, and then resides in the cell. However, if the terminal device resides in the cell by this method, there is a large power consumption and a radio resource. Defects with lower utilization.
  • the terminal equipment is in the coverage enhancement area of the two cells of the cell A and the cell B, and the receiving coverage level of the terminal device is 5 dB, wherein the coverage level of the cell A is 0 dB, 10 dB, and 20 dB, respectively, and the coverage level of the cell B is 0 dB, respectively.
  • 6dB and 15dB the strength of the reference signal of the cell A received by the terminal device is greater than the strength of the reference signal of the cell B received by the terminal device.
  • the terminal device selects the camped cell according to the strength of the received reference signal, the cell A is used as the camping cell, and the coverage level of 10 dB is selected, but the terminal is at the coverage level of 10 dB.
  • the power consumption of the device is large, and the utilization of wireless resources is low.
  • the current method for accessing a cell has the defects of high power consumption of the terminal device and low utilization of the wireless resource.
  • the embodiment of the invention provides a method for accessing a cell, which is used to solve the defect that the power consumption of the terminal device in the prior art is large and the utilization of the wireless resource is low.
  • a method for accessing a cell including:
  • the terminal device acquires the signal strength of each cell, and uses the maximum value of the obtained signal strengths as the first maximum signal strength;
  • the terminal device uses the cell with the first maximum signal strength as the first target cell
  • the terminal device acquires first coverage information of the first target cell
  • the terminal device determines that the first coverage information meets the current coverage requirement of the terminal device, the terminal device resides in the first target cell.
  • the method further includes:
  • the terminal device determines that the second coverage information meets the current coverage requirement, the terminal device resides in the second target cell.
  • the determining, by the terminal device, the second target cell includes:
  • the terminal device selects a second maximum signal strength from the first residual signal strengths
  • the terminal device uses the cell with the second maximum signal strength as the second target cell
  • the first residual signal strength is a residual signal strength of the signal strength acquired by the terminal device excluding the first maximum signal strength.
  • the acquiring, by the terminal device, the second coverage information of the second target cell includes:
  • the terminal device acquires the second coverage information in the first target cell; or
  • the terminal device accesses the second target cell, and acquires the second coverage information in the second target cell.
  • the first coverage information and the second coverage information include coverage level information, One or any combination of coded modulation mode, received signal to noise ratio requirement, and received signal dry noise ratio requirement.
  • a method for accessing a cell including:
  • the base station acquires second coverage information of the second target cell, and broadcasts the second coverage information.
  • the method before the determining, by the base station, the second target cell, the method further includes:
  • the base station acquires first coverage information of the first target cell, and broadcasts the first coverage information.
  • the first coverage information and the second coverage information include coverage level information, a coded modulation mode, and a received signal to noise ratio requirement. And receiving one or any combination of signal dry noise ratio requirements.
  • a third aspect provides a method for accessing a cell, including:
  • the terminal device acquires the signal strength of each cell
  • the terminal device as the at least one target cell, the cell corresponding to the signal strength of the acquired signal strength that is greater than or equal to the signal strength threshold;
  • the terminal device selects a corresponding target cell to camp according to the acquired coverage information corresponding to the at least one target cell.
  • the acquiring, by the terminal device, the coverage information corresponding to the at least one target cell includes:
  • the terminal device accessing the any one of the target cells to obtain the coverage information corresponding to the any one of the target cells;
  • the terminal device acquires coverage information corresponding to the at least one target cell in the first target cell, where the first target cell is a target cell whose corresponding signal strength is the maximum value in the at least one target cell.
  • the acquiring, by the terminal device, the coverage information corresponding to the at least one target cell includes:
  • the terminal device Determining, by the terminal device, a first target cell, and acquiring coverage information of the first target cell, where the first target cell is a target cell whose corresponding signal strength is a maximum value in the at least one target cell;
  • the terminal device receives the coverage information different indication, where the coverage information different indication is used to indicate the second target cell, where the second target cell is the corresponding coverage information in the at least one target cell and the first target cell Covering cells with different information;
  • the terminal device acquires coverage information of the second target cell according to the different indication of the coverage information.
  • the terminal device is configured according to the acquired coverage information of the at least one target cell , select the corresponding target cell to camp, including:
  • the terminal device selects a third target cell from the at least one target cell according to the acquired coverage information corresponding to the at least one target cell, and camps on the third target cell.
  • the terminal device according to the acquired coverage information corresponding to the at least one target cell, from the at least one target cell Screen out the third target cell, including:
  • the coverage information corresponding to the acquired at least one target cell by the terminal device Determining at least one fourth target cell that the coverage information meets the coverage requirement;
  • the terminal device determines a received signal strength of the terminal device in the any fourth target cell, and a corresponding requirement in the any fourth target cell is smaller than a coverage level of the received signal strength;
  • the maximum coverage level is selected in the coverage level that is less than the receiving coverage level;
  • the terminal device uses, as the third target cell, a fourth target cell corresponding to the maximum value.
  • the coverage information includes coverage level information, a coded modulation mode, and a received signal to noise ratio requirement. And receiving one or any combination of signal dry noise ratio requirements.
  • a fourth aspect provides a method for accessing a cell, including:
  • the base station broadcasts coverage information corresponding to the at least two target cells respectively.
  • the method further includes:
  • the base station sends a different indication of the coverage information to the terminal device, where the coverage information different indication is used to indicate that the coverage information of the at least two target cells is different from the coverage information of the first target cell Community.
  • a fifth aspect provides a terminal device, including:
  • a receiving module configured to acquire signal strength of each cell
  • a processing module configured to use a maximum value of the signal strengths obtained by the receiving module as the first maximum signal strength
  • the processing module is further configured to: use, as the first target cell, a cell that has the first maximum signal strength obtained by the processing module;
  • the receiving module is further configured to acquire first coverage information of the first target cell determined by the processing module;
  • the processing module is further configured to: determine that the first coverage information acquired by the receiving module meets a current coverage requirement of the terminal device;
  • a camping module configured to reside in the first target cell when the processing module determines that the first coverage information meets a current coverage requirement of the terminal device.
  • the processing module is further configured to: when determining that the first coverage information does not meet the current coverage requirement, determine the second target cell;
  • the receiving module is further configured to: acquire second coverage information of the second target cell that is determined by the processing module;
  • the processing module is further configured to: determine that the second coverage information acquired by the receiving module meets the current coverage requirement;
  • the camping module is further configured to reside in the second target cell when the processing module determines that the second coverage information meets the current coverage requirement.
  • the first residual signal strength is a residual signal strength of the signal strength acquired by the terminal device excluding the first maximum signal strength.
  • a third possible implementation manner when the receiving module acquires the second coverage information of the second target cell determined by the processing module, For:
  • the first coverage information and the second coverage information include coverage level information, One or any combination of coded modulation mode, received signal to noise ratio requirement, and received signal dry noise ratio requirement.
  • a base station including:
  • a processing module configured to determine a second target cell, where the second target cell is a cell that is outside the coverage of the base station;
  • a receiving module configured to acquire second coverage information of the second target cell determined by the processing module
  • a sending module configured to broadcast second coverage information acquired by the receiving module.
  • the processing module is further configured to determine a first target cell, where the first target cell is within the coverage of the base station;
  • the receiving module is further configured to acquire first coverage information of the first target cell.
  • the sending module is further configured to broadcast the first coverage information acquired by the receiving module.
  • the first coverage information and the second coverage information include coverage level information, a coded modulation mode, and a received signal to noise ratio requirement. And receiving one or any combination of signal dry noise ratio requirements.
  • a seventh aspect provides a terminal device, including:
  • a receiving module configured to acquire signal strength of each cell
  • a processing module configured to use, as the at least one target cell, a cell corresponding to a signal strength that is greater than or equal to a signal strength threshold of the signal strength acquired by the receiving module;
  • the receiving module is further configured to: acquire coverage information corresponding to the at least one target cell determined by the processing module;
  • the processing module is further configured to select a corresponding target cell to camp according to the coverage information corresponding to the at least one target cell acquired by the receiving module.
  • the receiving module acquires the coverage information corresponding to the at least one target cell determined by the processing module, specifically:
  • the processing module Obtaining coverage information corresponding to the at least one target cell in the first target cell that is determined by the processing module, where the first target cell is a target cell whose corresponding signal strength is the maximum value in the at least one target cell.
  • the processing module is further configured to determine a first target cell, where the first target cell is a maximum signal strength of the at least one target cell Target cell
  • the receiving module acquires the coverage information corresponding to the at least one target cell determined by the processing module, specifically:
  • the processing module is configured according to the at least one target cell acquired by the receiving module Corresponding coverage information, when selecting the corresponding target cell to camp, specifically:
  • the processing module according to the coverage information corresponding to the at least one target cell acquired by the receiving module, from the processing When the third target cell is selected in the at least one target cell determined by the module, specifically:
  • Determining a received signal strength of the terminal device in the any fourth target cell, and a corresponding requirement in the any fourth target cell is smaller than a coverage level of the received signal strength;
  • the maximum coverage level is selected in the coverage level of the coverage level;
  • the fourth target cell corresponding to the maximum value is used as the third target cell.
  • the coverage information includes coverage level information, a coded modulation mode, and a received signal to noise ratio requirement. And receiving one or any combination of signal dry noise ratio requirements.
  • a base station including:
  • a processing module configured to determine at least two target cells, where the cells outside the coverage of the base station exist in the at least two target cells;
  • the receiving module is configured to acquire coverage information corresponding to the at least two target cells determined by the processing module;
  • a sending module configured to broadcast coverage information corresponding to the at least two target cells acquired by the receiving module.
  • the processing module is further configured to: determine, by using the at least two target cells that are determined by the processing module, the first target cell, where the first target cell is Determining, in the at least two target cells, a target cell whose corresponding signal strength is a maximum value;
  • the sending module is further configured to send, to the terminal device, a different indication of the coverage information, where the different indication of the coverage information is used to indicate the coverage information of the at least two target cells and the coverage information of the first target cell. Different second target cells.
  • a ninth aspect provides a communication system, comprising the terminal device according to the fifth aspect, or the first to fourth possible implementation manners of the fifth aspect, and the sixth aspect, or the sixth aspect The base station of any one of the first to second possible implementations.
  • a tenth aspect a communication system, comprising the terminal device according to the seventh aspect, or the first to fifth possible implementation manners of the seventh aspect, and the eighth or eighth aspect The first possible implementation of the described base station.
  • the embodiment of the present invention provides a method for accessing a cell, where the terminal device acquires the signal strength of each cell, and uses the maximum value of the obtained signal strength as the first maximum signal strength; the terminal device will have the first maximum signal strength.
  • a cell as a first target cell; a terminal device, and acquiring first coverage information of the first target cell; and determining, by the terminal device, that the first coverage information meets a current coverage requirement of the terminal device, camping in the first target cell,
  • the terminal device accesses the cell, it needs to refer to the coverage information of the cell, and the coverage information satisfies the current coverage requirement of the terminal device before camping on the cell. Therefore, the power consumption of the currently existing terminal device is avoided. And the defect of low utilization of wireless resources.
  • FIG. 1 is a flowchart of accessing a cell according to an embodiment of the present invention
  • FIG. 2 is another flowchart of accessing a cell according to an embodiment of the present invention.
  • FIG. 3 is another flowchart of accessing a cell according to an embodiment of the present invention.
  • FIG. 4 is another flowchart of accessing a cell according to an embodiment of the present invention.
  • FIG. 5 is an embodiment of an access cell according to an embodiment of the present disclosure.
  • FIG. 6 is another embodiment of an access cell according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic diagram of a terminal device according to an embodiment of the present disclosure.
  • FIG. 7B is another schematic diagram of a terminal device according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram of a base station according to an embodiment of the present invention.
  • FIG. 8B is another schematic diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 9A is another schematic diagram of a terminal device according to an embodiment of the present disclosure.
  • FIG. 9B is another schematic diagram of a terminal device according to an embodiment of the present disclosure.
  • FIG. 10A is another schematic diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 10B is another schematic diagram of a base station according to an embodiment of the present invention.
  • GSM Global System for Mobile communications
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access Wireless
  • FDMA Frequency Division Multiple Addressing
  • OFDMA Orthogonal Frequency-Division Multiple Access
  • single carrier FDMA Single-Carrier Frequency-Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • Long Term Evolution Long Term Evolution
  • the wireless terminal device can be a device that provides voice and/or data connectivity to the user, a handheld device with wireless connectivity, or other processing device that is connected to the wireless modem.
  • the wireless terminal device can communicate with one or more core networks via a RAN (Radio Access Network), which can be a mobile terminal device, such as a mobile phone (or "cellular" phone) and has a mobile
  • RAN Radio Access Network
  • the computers of the terminal devices may be portable, pocket-sized, handheld, computer-integrated or in-vehicle mobile devices that exchange language and/or data with the wireless access network.
  • the wireless terminal device may also be referred to as a system, a SU (Subscriber Unit), an SS (Subscriber Station), an MS (Mobile Station), a mobile station (Mobile), and an RS (Remote Station).
  • SU Subscriber Unit
  • SS Subscriber Station
  • MS Mobile Station
  • RS Remote Station
  • AP Access Point
  • RT Remote Terminal
  • AT Access Terminal
  • UT User Terminal
  • UA User Agent
  • UD User Device
  • UE User Equipment
  • a base station can refer to a device in an access network that communicates with wireless terminal devices over one or more sectors over an air interface.
  • the base station can be used to convert the received air frame with an IP (Internet Protocol) packet as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network can include an internet protocol. (IP) network.
  • IP internet protocol
  • the base station can also coordinate attribute management of the air interface.
  • the base station may be a BTS (Base Transceiver Station, base station) in GSM or CDMA, or a base station (NodeB) in WCDMA, or an eNB (Evolved Node B, evolved base station) or e- in LTE. NodeB (Evolutional Node B), this application is not limited.
  • the core network node device can be applied to different communication network systems, including but not limited to SAE (System Architecture Evolved)/LTE network, UMTS (Universal Mobile Telecommunications System). Communication system) network, CDMA, etc.
  • the core network node device includes, but is not limited to, a mobility management entity MME (Mobile Management Entity), an SGSN (Serving GPRS Support Node, a GPRS (General Packet Radio Service), or a GPRS (General Packet Radio Service)). It is an MSC (Mobile Switching Center) and is not limited herein.
  • MME Mobile Management Entity
  • SGSN Serving GPRS Support Node
  • GPRS General Packet Radio Service
  • MSC Mobile Switching Center
  • the core network node device may be an MME, and the wireless access node device may be an eNB; for a UMTS network, the core network node device may be an SGSN or an MSC, and the wireless access node device It can be RNC or nodeB.
  • the core network node device may be an MME, and the wireless access node device may be an eNB; for a UMTS network, the core network node device may be an SGSN or an MSC, and the wireless access node device It can be RNC or nodeB.
  • RNC nodeB
  • system and “network” are used interchangeably herein.
  • the term “and/or” in this context is merely an association that describes an associated object, indicating that there can be three relationships, for example For example, A and/or B may indicate that A exists separately, and A and B exist simultaneously, and B cases exist alone.
  • the letter “/” in this article generally indicates that the contextual object is an "or" relationship.
  • a process for accessing a cell is as follows:
  • Step 100 The terminal device acquires the signal strength of each cell, and uses the maximum value of the obtained signal strengths as the first maximum signal strength.
  • Step 110 The terminal device uses the cell with the first maximum signal strength as the first target cell.
  • Step 120 The terminal device acquires first coverage information of the first target cell.
  • Step 130 The terminal device resides in the first target cell when determining that the first coverage information meets the current coverage requirement of the terminal device.
  • the signal strength may be the reference signal strength.
  • other forms of signal strength may also be used, and details are not described herein. The following uses the reference signal strength as an example for explanation.
  • the terminal device acquires reference signals of 10 cells, and the reference signal strengths of the reference signals of the respective cells are as follows: reference signal strength 1, reference signal strength 2, reference signal strength 3, ..., reference signal strength 10, reference signal strength 1 corresponds to cell 1, reference signal strength 2 corresponds to cell 2, reference signal strength 3 corresponds to cell 3, ..., reference signal strength 10 corresponds to cell 10, if reference signal strength 4 is the largest of 10 reference signal strengths a value of the cell 4 corresponding to the reference signal strength 4 as the first target cell; if the reference signal strength 5 is the maximum of the 10 reference signal strengths, the cell 5 corresponding to the reference signal strength 5 is used as the first target cell; If the reference signal strength 6 is the maximum of the 10 reference signal strengths, the cell 6 corresponding to the reference signal strength 6 is used as the first target cell, and so on, and will not be described in detail herein.
  • the method further includes the following operations:
  • the terminal device resides in the second target cell when determining that the second coverage information meets the current coverage requirement.
  • the terminal device determines the first target cell, and obtains the first coverage information of the first target cell, and determines whether the first coverage information meets the current coverage requirement of the terminal device, and if yes, the terminal device resides in the first target cell, otherwise, The second target cell is determined, and the second coverage information of the second target cell is obtained. When determining that the second coverage information meets the current coverage requirement of the terminal device, the terminal device resides in the second target cell.
  • the terminal device determines the third target cell, and determines whether the third coverage information of the third target cell meets the current coverage requirement of the terminal device. If the terminal device resides, the terminal device resides. In the third target cell, otherwise, determining the fourth target cell, and performing a step of determining whether the fourth coverage information of the fourth target cell meets the current coverage requirement of the terminal device, the subsequent process is similar to the foregoing process, and is not performed here. Detailed.
  • the terminal device determines the second target cell, and optionally, the following manner may be adopted:
  • the terminal device selects a second maximum signal strength from the first residual signal strengths
  • the terminal device uses the cell with the second largest signal strength as the second target cell
  • the first residual signal strength is a residual signal strength of the signal strength acquired by the terminal device excluding the first maximum signal strength, and the first maximum signal strength is a maximum value of the acquired signal strength.
  • the reference signal is still taken as an example for explanation.
  • the terminal device acquires reference signals of 10 cells, and the reference signal strengths of the respective reference signals are as follows: reference signal strength 1, reference signal strength 2, reference signal strength 3, ..., reference signal strength 10, reference signal strength 1 and Cell 1 corresponds, reference signal strength 2 corresponds to cell 2,
  • the reference signal strength 3 corresponds to the cell 3, ..., the reference signal strength 10 corresponds to the cell 10
  • the cell 4 corresponding to the reference signal strength 4 is taken as the first Determining whether the first coverage information of the cell 4 meets the current coverage requirement of the terminal device, and if so, camping the terminal device on the cell 4; otherwise, determining other reference values other than the reference signal strength 4 among the 10 reference signal strengths
  • the maximum value in the signal if the reference signal strength 1 in the remaining 9 reference signal strengths (reference signal strength 1, reference signal strength 2, reference signal strength 3, ..., reference signal strength 10) is the maximum value, then The cell 1 corresponding to the reference signal strength 1 is used as the second target cell; whether the second coverage information of
  • the maximum value among the other reference signals except the reference signal strength 1 is removed, if the remaining 8 reference signal strengths (reference signal strength 2, reference signal) In the strength 3, ..., the reference signal strength 10), the reference signal strength 2 is the maximum value, then the cell 2 corresponding to the reference signal strength 2 is used as the third target cell; whether the third coverage information of the cell 2 satisfies the current state of the terminal device Covering the demand, if yes, the terminal device resides in the cell 2, otherwise, the step of determining the maximum value from the remaining 7 reference signal strengths is returned, and the subsequent steps are similar to the above process, and are not detailed here. .
  • the terminal device when acquiring the coverage information, such as the second coverage information, the third coverage information, and the fourth coverage information, the terminal device may access the corresponding cell to obtain, for example, access the second coverage information.
  • the coverage information such as the second coverage information, the third coverage information, and the fourth coverage information
  • the terminal device may access the corresponding cell to obtain, for example, access the second coverage information.
  • the terminal device may be in the first The second coverage information, the third coverage information, the fourth coverage information, and the like are acquired in the target cell.
  • the method when the terminal device acquires the second coverage information of the second target cell, the method may be as follows:
  • the terminal device acquires second coverage information in the first target cell;
  • the terminal device accesses the second target cell, and acquires the second coverage information in the second target cell.
  • the first coverage information and the second coverage information comprise one or any combination of coverage level information, a coded modulation mode, a received signal to noise ratio requirement, and a received signal dry noise ratio requirement.
  • the terminal device may further acquire the coverage level supported by the first target cell by using a synchronization sequence.
  • the terminal device refers to the first coverage information of the first target cell when the access resides in the first target cell, and resides in the first coverage information when the first coverage information meets the current coverage requirement of the terminal device.
  • the first target cell is camped on the cell, referring to the coverage information of the cell, the defect that the terminal device consumes a large amount of power and the radio resource utilization rate is low is avoided.
  • Step 200 The base station determines a second target cell, where the second target cell is a cell that is outside the coverage of the base station;
  • Step 210 The base station acquires second coverage information of the second target cell, and broadcasts the second coverage information.
  • the base station may acquire the second coverage information of the second target cell that is out of the coverage, and broadcast the second coverage information, and the terminal device does not need to move to the base station that provides the service for the second target cell.
  • the second coverage information therefore, improves the efficiency of the terminal device accessing the cell.
  • the method before determining, by the base station, the second target cell, the method further includes the following operations:
  • the base station acquires first coverage information of the first target cell, and broadcasts the first coverage information.
  • the first coverage information and the second coverage information comprise one or any combination of coverage level information, a coded modulation mode, a received signal to noise ratio requirement, and a received signal dry noise ratio requirement.
  • the target cell is determined first, and then the coverage information of the target cell is acquired.
  • the first target cell is first determined, and the first coverage information of the first target cell is obtained. If the first coverage information does not meet the current coverage requirement of the terminal device, the second target cell is determined, and the second target cell is obtained. The second coverage information.
  • the multiple target cells may be determined first, and the coverage information corresponding to each of the multiple target cells is obtained, and then the corresponding target cell is selected according to the acquired coverage information of the multiple target cells. stay.
  • Step 300 The terminal device acquires a signal strength of each cell.
  • Step 310 The terminal device determines, as the at least one target cell, a cell corresponding to a signal strength that is greater than or equal to a signal strength threshold of the obtained signal strengths respectively.
  • Step 320 The terminal device acquires coverage information corresponding to each of the at least one target cell.
  • Step 330 The terminal device selects a corresponding target cell to camp according to the acquired coverage information of the at least one target cell.
  • the terminal device determines three target cells, and the coverage information corresponding to the three target cells are: first coverage information, second coverage information, and third coverage information, and the terminal device is configured according to the first coverage information, the second coverage information, and The third coverage information selects a corresponding target cell from the three target cells, and camps in the selected corresponding target cell.
  • the signal strength may be the reference signal strength.
  • other forms of signal strength may also be used, and details are not described herein. The following uses the reference signal strength as an example for explanation.
  • the terminal device acquires reference signals of 10 cells, and the reference signal strengths of the respective reference signals are as follows: reference signal strength 1, reference signal strength 2, reference signal strength 3, ..., reference signal strength 10, reference signal strength 1 and Corresponding to cell 1, reference signal strength 2 corresponds to cell 2, reference signal strength 3 corresponds to cell 3, ..., reference signal strength 10 corresponds to cell 10, if reference signal strength 1, reference signal strength 2, reference signal strength 5, If the reference signal strength 7 is greater than the reference signal strength threshold, the cell 1, the cell 2, the cell 5, and the cell 7 are all regarded as target cells; Alternatively, if the reference signal strength 4, the reference signal strength 5, the reference signal strength 6, and the reference signal strength 7 are both greater than the reference signal strength threshold, the cell 4, the cell 5, the cell 6 and the cell 7 are all regarded as target cells.
  • the terminal device to obtain the coverage information corresponding to the at least one target cell, and optionally, the following manner may be adopted:
  • the terminal device For any one of the at least one target cell, the terminal device is located under the base station of any target cell, and acquires the coverage information corresponding to any target cell.
  • the coverage information of the target cell to be acquired by the terminal device is to be obtained by the base station serving the target cell, for example, the cell 4, the cell 5, the cell 6 and the cell 7 are all used as target cells, and the cell 4 is acquired.
  • the mobile station moves to the base station serving the cell 4 to obtain the acquisition information;
  • the coverage information of the cell 5 is acquired, the mobile station moves to the base station that provides the service for the cell 5 to obtain the acquisition;
  • the coverage information of the cell 6 is acquired, the mobile terminal is moved to the cell 6
  • the base station providing the service proceeds to acquire; when acquiring the coverage information of the cell 7, the mobile station moves to the base station that provides the service for the cell 7 to obtain.
  • the terminal device acquires the coverage information corresponding to the at least one target cell, the following manner may also be adopted:
  • the terminal device acquires coverage information corresponding to the at least one target cell in the first target cell, where the first target cell is a target cell whose corresponding signal strength is the maximum value in the at least one target cell.
  • the cell 4, the cell 5, the cell 6 and the cell 7 are both the target cells, and the signal strength corresponding to the cell 4 in the four target cells is the maximum value, and the four target cells are respectively obtained under the base station serving the cell 4. Coverage information.
  • the terminal device acquires coverage information corresponding to each of the at least one target cell, and any one cell belongs to at least one target cell.
  • the coverage information corresponding to the at least one target cell when the coverage information corresponding to the at least one target cell is to be obtained, the coverage information corresponding to the at least one target cell may be acquired, for example, the cell 4, the cell 5, the cell 6 and Cell 7 is used as the target cell, and moves to the cell 4
  • the base station for the service may obtain the coverage information corresponding to the cell 4, the cell 5, the cell 6 and the cell 7 respectively; or, after moving to the base station serving the cell 5, the cell 4, the cell 5, the cell 6 and the cell may be acquired.
  • moving to a base station serving the cell 6, may acquire coverage information corresponding to the cell 4, the cell 5, the cell 6 and the cell 7, respectively; or move to the base station serving the cell 7
  • the coverage information corresponding to the cell 4, the cell 5, the cell 6 and the cell 7 respectively can be obtained.
  • the terminal device when the terminal device acquires the coverage information corresponding to the at least one target cell, the terminal device may be configured as follows:
  • the terminal device Determining, by the terminal device, the first target cell, and acquiring coverage information of the first target cell, where the first target cell is a target cell with a corresponding maximum signal strength in the at least one target cell;
  • the terminal device receives the coverage information different indication, where the coverage information different indication is used to indicate the second target cell, and the second target cell is a cell in which the coverage information of the at least one target cell is different from the coverage information of the first target cell;
  • the terminal device acquires the coverage information of the second target cell according to the different coverage information.
  • the coverage information corresponding to the at least one target cell it is not necessary to acquire the corresponding coverage information for each target cell, but first acquire the coverage information of the first target cell, and then receive the coverage.
  • the different information indicates that the coverage information of the target cells in the at least one target cell is different from the coverage information of the first target cell, and the coverage information of the target cell different from the coverage information of the first target cell is obtained. can.
  • the cell 4, the cell 5, the cell 6 and the cell 7 are both the target cell, and the cell 4 is the first target cell, and the coverage information of the cell 4 is acquired, and different indications of the coverage information are received, and four targets can be determined according to different indications of the cover information. If the coverage information of the cell 6 and the cell 4 in the cell is different, the coverage information of the cell 6 may be acquired.
  • the terminal device does not need to acquire the coverage information corresponding to the cell 4, the cell 5, the cell 6 and the cell 7, respectively, and first acquires the coverage information of the cell 4, and the coverage information different indication determines the coverage of the cell 6 and the cell 4.
  • the information is different, and then the coverage information of the cell 6 can be obtained according to different indications of the coverage information.
  • the terminal device when the terminal device selects the corresponding target cell to perform the camping according to the acquired coverage information of the at least one target cell, the terminal device may be configured as follows:
  • the terminal device selects a third target cell from the at least one target cell according to the acquired coverage information of the at least one target cell, and camps on the third target cell.
  • the method when the terminal device selects the third target cell from the at least one target cell according to the acquired coverage information of the at least one target cell, the method may be as follows:
  • the terminal device determines, from the coverage information corresponding to the at least one target cell that is obtained, that the coverage information meets the coverage requirement of the at least one fourth target cell;
  • the terminal device determines the received signal strength of the terminal device in any fourth target cell, and the corresponding requirement in any fourth target cell is smaller than the coverage level of the received signal strength; and filters out the corresponding coverage level that is less than the signal strength. Maximum coverage level;
  • the terminal device determines a maximum value of the maximum coverage levels respectively screened for each of the fourth target cells
  • the terminal device uses the fourth target cell corresponding to the maximum value as the third target cell.
  • the cell 4, the cell 5, the cell 6 and the cell 7 are both the target cells, and the coverage information of the four target cells meets the coverage requirement.
  • the following process is performed:
  • Determining the received signal strength 1 of the cell 4, and the corresponding requirement in the cell 4 is less than the coverage level of the received signal strength 1: coverage level 1, coverage level 2, coverage level 3;
  • Determining the received signal strength 2 of the cell 5, and the corresponding requirement in the cell 5 is less than the coverage level of the received signal strength 2: coverage level 4, coverage level 5, coverage level 6;
  • Determining the received signal strength 3 of the cell 6, and the corresponding requirement in the cell 6 is less than the coverage level of the received signal strength 3: coverage level 7, coverage level 8, coverage level 9;
  • Determining the received signal strength 4 of the cell 7, and the corresponding requirement in the cell 7 is less than the coverage level of the received signal strength 4: coverage level 10, coverage level 11, coverage level 12;
  • coverage level 3 coverage level 6, coverage level 9, and coverage level 12
  • coverage level 6 coverage level 9
  • coverage level 12 coverage level 12
  • the coverage information includes one or any combination of coverage level information, a coded modulation mode, a received signal to noise ratio requirement, and a received signal dry noise ratio requirement.
  • the coverage information of the target cell is referred to, and referring to the coverage information of the target cell, the power consumption of the terminal device is avoided and the utilization of the wireless resource is low. defect.
  • Step 400 The base station determines at least two target cells, where at least two target cells have cells outside the coverage of the base station;
  • Step 410 The base station acquires coverage information corresponding to at least two target cells respectively.
  • Step 420 The base station broadcasts coverage information corresponding to each of the at least two target cells.
  • the base station may acquire coverage information of at least two target cells and perform broadcast, and in the prior art, the base station can only obtain coverage information of one cell under the coverage, and broadcast, so that the terminal device When the coverage information of the multiple target cells is to be obtained, it is not necessary to separately move to the base station to which the multiple target cells belong, and can be acquired under one base station, thereby improving the efficiency of the terminal device acquiring multiple coverage information.
  • the method further includes the following operations:
  • the base station sends a different indication of the coverage information to the terminal device, where the coverage information different indication is used to indicate that the coverage information of the at least two target cells is different from the coverage information of the first target cell.
  • the signal strength may be the reference signal strength.
  • other forms of signal strength may also be used, and details are not described herein. The following uses the reference signal strength as an example for explanation.
  • Step 500 The terminal device acquires three reference signal strengths: reference signal strength 1, reference signal strength 2, and reference signal strength 3;
  • Step 510 The terminal device determines that the reference signal strength 3 of the three reference signal strengths is the maximum value, and the cell 3 corresponding to the reference signal strength 3 is used as the first target cell.
  • Step 520 The terminal device acquires first coverage information of the cell 3.
  • Step 530 The terminal device determines whether the first coverage information meets the current coverage requirement of the terminal device, and if so, resides in the cell 3, otherwise, step 540 is performed;
  • Step 540 The terminal device determines that the reference signal strength 2 is the maximum value from the test signal strength 1 and the reference signal strength 2, and then the cell corresponding to the reference signal strength 2 is used as the second target cell;
  • Step 550 The terminal device acquires second coverage information of the cell 2.
  • Step 560 The terminal device determines whether the second coverage information meets the current coverage requirement of the terminal device. If so, reside in cell 2, otherwise, perform step 570;
  • Step 570 The terminal device acquires the third coverage information of the cell 1, and determines whether the third coverage information meets the current coverage requirement of the terminal device. If yes, it resides in the cell 1, otherwise the process ends.
  • Step 600 The terminal device acquires five reference signal strengths: reference signal strength 1, reference signal strength 2, reference signal strength 3, reference signal strength 4, and reference signal strength 5;
  • Step 610 The terminal device determines the reference signal strength 1, the reference signal strength 2, the reference signal strength 3 reference signal strength threshold, and then uses the cell 1, the cell 2, and the cell 3 as the target cell.
  • Step 620 The terminal device acquires coverage information corresponding to the cell 1, the cell 2, and the cell 3, respectively, and determines that the coverage information corresponding to the cell 1 and the cell 2 respectively meet the coverage requirement;
  • Step 630 The terminal device selects the cell 1 as the third target cell from the cell 1 and the cell 2, and camps on the cell 1.
  • the method when the terminal device selects the cell 1 as the third target cell from the cell 1 and the cell 2, the method may be as follows:
  • the terminal device determines the received signal strength of the terminal device in the cell 1, and the corresponding requirement in the cell 1 is less than the coverage level of the received signal strength; and the maximum coverage level is selected from the corresponding coverage level that is less than the received signal strength. ;
  • the terminal device determines the received signal strength of the terminal device in the cell 2, and the corresponding requirement in the cell 2 is smaller than the coverage level of the received signal strength; and the maximum coverage level is selected from the corresponding coverage level that is less than the received signal strength. ;
  • the terminal device determines the maximum value among the maximum coverage levels respectively screened for the cell 1 and the cell 2, and the maximum value corresponds to the cell 1, and the cell 1 is used as the third target cell.
  • an embodiment of the present invention provides a user equipment, where the user equipment includes a receiving module 70, a processing module 71, and a resident module 72, where:
  • the receiving module 70 is configured to acquire signal strength of each cell.
  • the processing module 71 is configured to use the maximum value of the signal strengths acquired by the receiving module 70 as the first Large signal strength;
  • the processing module 71 is further configured to: use, as the first target cell, a cell that has the first maximum signal strength obtained by the processing module 71;
  • the receiving module 70 is further configured to acquire first coverage information of the first target cell that is determined by the processing module 71.
  • the processing module 71 is further configured to: determine that the first coverage information acquired by the receiving module 70 meets a current coverage requirement of the terminal device;
  • the resident module 72 is configured to reside in the first target cell when the processing module 71 determines that the first coverage information meets the current coverage requirement of the terminal device.
  • processing module 71 is further configured to: when determining that the first coverage information does not meet the current coverage requirement, determine the second target cell;
  • the receiving module 70 is further configured to: acquire second coverage information of the second target cell that is determined by the processing module 71;
  • the processing module 71 is further configured to: determine that the second coverage information acquired by the receiving module 70 meets the current coverage requirement;
  • the camping module 72 is further configured to reside in the second target cell when the processing module 71 determines that the second coverage information meets the current coverage requirement.
  • the processing module 71 determines the second target cell, specifically:
  • the first residual signal strength is a residual signal strength of the signal strength acquired by the terminal device excluding the first maximum signal strength.
  • the receiving module 70 obtains the second coverage information of the second target cell that is determined by the processing module 71, specifically:
  • the second target cell determined by the access processing module 71 acquires the second coverage information in the second target cell.
  • the first coverage information and the second coverage information comprise one or any combination of coverage level information, a coded modulation mode, a received signal to noise ratio requirement, and a received signal to interference and noise ratio requirement.
  • an embodiment of the present invention provides a user equipment, where the user equipment includes a receiver 700 and a processor 710, where:
  • a receiver 700 configured to acquire signal strength of each cell
  • the processor 710 is configured to use a maximum value of the signal strengths acquired by the receiver 700 as the first maximum signal strength;
  • the processor 710 is further configured to: use, as the first target cell, a cell that has the first maximum signal strength obtained by the processor 710;
  • the receiver 700 is further configured to acquire, by the processor 710, first coverage information of the first target cell.
  • the processor 710 is further configured to: determine that the first coverage information acquired by the receiver 700 meets a current coverage requirement of the terminal device;
  • the processor 710 is further configured to reside in the first target cell when the processor 710 determines that the first coverage information meets the current coverage requirement of the terminal device.
  • receiver 700 can also perform other operations performed by the receiving module 70 shown in FIG. 7A, and the processor 710 can also execute the processing module 71 and the resident module 72 shown in FIG. 7A. operating.
  • an embodiment of the present invention provides a base station, where the base station includes a processing module 80, a receiving module 81, and a sending module 82, where:
  • the processing module 80 is configured to determine a second target cell, where the second target cell is a cell that is outside the coverage of the base station;
  • the receiving module 81 is configured to acquire second coverage information of the second target cell determined by the processing module 80.
  • the sending module 82 is configured to broadcast the second coverage information acquired by the receiving module 81.
  • processing module 80 is further configured to: determine, by the first target cell, that the first target cell is within the coverage of the base station;
  • the receiving module 81 is further configured to acquire first coverage information of the first target cell.
  • the sending module 82 is further configured to broadcast the first coverage information acquired by the receiving module 81.
  • the first coverage information and the second coverage information comprise one or any combination of coverage level information, a coded modulation mode, a received signal to noise ratio requirement, and a received signal to interference and noise ratio requirement.
  • an embodiment of the present invention provides a base station, where the base station includes a processor 800, a receiver 810, and a transmitter 820, where:
  • the processor 800 is configured to determine a second target cell, where the second target cell is a cell that is outside the coverage of the base station;
  • the receiver 810 is configured to acquire second coverage information of the second target cell determined by the processor 800.
  • the transmitter 820 is configured to broadcast the second coverage information acquired by the receiver 810.
  • processor 800 can also perform other operations performed by the processing module 80 shown in FIG. 8A, and the receiver 810 can also perform other operations performed by the receiving module 81 shown in FIG. 8A, the transmitter 820. Other operations performed by the transmitting module 82 shown in FIG. 8A can also be performed.
  • an embodiment of the present invention provides a terminal device, where the terminal device includes a receiving module 90 and a processing module 91, where:
  • the receiving module 90 is configured to acquire signal strength of each cell.
  • the processing module 91 is configured to use, as the at least one target cell, a cell corresponding to a signal strength that is greater than or equal to a signal strength threshold of the signal strength acquired by the receiving module 90;
  • the receiving module 90 is further configured to: acquire the coverage information corresponding to the at least one target cell determined by the processing module 91;
  • the processing module 91 is further configured to select a corresponding target cell to camp according to the coverage information corresponding to the at least one target cell acquired by the receiving module 90.
  • the receiving module 90 obtains the coverage information corresponding to the at least one target cell determined by the processing module 91, specifically:
  • the first target cell is a target cell whose corresponding signal strength is the maximum value in at least one target cell.
  • processing module 91 is further configured to: determine, by the first target cell, that the first target cell is a target cell that has a maximum signal strength in the at least one target cell;
  • the receiving module 90 obtains the coverage information corresponding to the at least one target cell determined by the processing module 91, specifically:
  • the coverage information different indication is used to indicate the second target cell, where the second target cell is a cell in which the coverage information of the at least one target cell is different from the coverage information of the first target cell;
  • the coverage information of the second target cell is obtained according to different indications of the coverage information.
  • the processing module 91 selects a corresponding target cell to perform camping according to the coverage information corresponding to the at least one target cell that is obtained by the receiving module 90, specifically:
  • the third target cell is selected from the at least one target cell determined by the processing module 91 and resides in the third target cell according to the coverage information corresponding to the at least one target cell that is obtained by the receiving module 90.
  • the processing module 91 when the third target cell is selected from the at least one target cell determined by the processing module 91, according to the coverage information corresponding to the at least one target cell that is received by the receiving module 90, specifically:
  • Determining the received signal strength of the terminal device in any fourth target cell, and the corresponding requirement in any fourth target cell is smaller than the coverage level of the received signal strength; and selecting the maximum from the corresponding coverage level that is less than the received coverage level Coverage level
  • the fourth target cell corresponding to the maximum value is used as the third target cell.
  • the coverage information includes one or any combination of coverage level information, a coded modulation mode, a received signal to noise ratio requirement, and a received signal dry noise ratio requirement.
  • an embodiment of the present invention provides a terminal device, where the terminal device includes a receiver 900 and a processor 910, where:
  • a receiver 900 configured to acquire signal strength of each cell
  • the processor 910 is configured to use, as the at least one target cell, a cell corresponding to a signal strength that is greater than or equal to a signal strength threshold of the signal strength acquired by the receiver 900;
  • the receiver 900 is further configured to acquire, by the processor 910, coverage information corresponding to the at least one target cell respectively.
  • the processor 910 is further configured to select a corresponding target cell to camp according to the coverage information corresponding to the at least one target cell acquired by the receiver 900.
  • receiver 900 can also perform other operations performed by the receiving module 90 shown in FIG. 9A, and the processor 910 can also perform other operations performed by the processing module 91 shown in FIG. 9A.
  • an embodiment of the present invention provides a base station, where the base station includes a processing module 100, a receiving module 101, and a sending module 102, where:
  • the processing module 100 is configured to determine at least two target cells, where at least two target cells have cells outside the coverage of the base station;
  • the receiving module 101 is configured to acquire, by the processing module 100, coverage information corresponding to at least two target cells respectively.
  • the sending module 102 is configured to broadcast the coverage information corresponding to the at least two target cells acquired by the receiving module 101.
  • the processing module 100 is further configured to: determine, by the at least two target cells determined by the processing module 100, a first target cell, where the first target cell is a target cell with a corresponding signal strength of the at least two target cells being a maximum value;
  • the sending module 102 is further configured to send a coverage information different indication to the terminal device, where the coverage information different indication is used to indicate the coverage information of the at least two target cells and the coverage of the first target cell. A second target cell with different information.
  • an embodiment of the present invention provides a base station, where the base station includes a processor 1000, a receiver 1001, and a transmitter 1002, where:
  • the processor 1000 is configured to determine at least two target cells, where at least two target cells have cells outside the coverage of the base station;
  • the receiver 1001 is configured to acquire, by using the coverage information corresponding to the at least two target cells determined by the processor 1000,
  • the transmitter 1002 is configured to broadcast coverage information corresponding to at least two target cells acquired by the receiver 1001.
  • processor 1000 can also perform other operations performed by the processing module 101 shown in FIG. 10A, and the receiver 1001 can also perform other operations performed by the receiving module 101 shown in FIG. 10A, the transmitter 1002. Other operations performed by the transmitting module 102 shown in FIG. 10A can also be performed.
  • a communication system which includes the terminal device as shown in FIG. 7A or FIG. 7B, and the base station as shown in FIG. 8A or FIG. 8B.
  • another communication system which includes the terminal device as shown in FIG. 9A or FIG. 9B, and the base station as shown in FIG. 10A or FIG. 10B.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

Abstract

一种接入小区的方法、装置及系统，终端设备确定第一目标小区，并获取第一目标小区的第一覆盖信息；终端设备确定第一覆盖信息满足终端设备的当前覆盖需求时，驻留在第一目标小区，在该方案中，终端设备在接入小区时，要参考小区的的覆盖信息，在覆盖信息满足终端设备的当前覆盖需求时，才驻留在该小区，因此，避免了目前存在的终端设备的功耗较大及无线资源利用率较低的缺陷。

Description

一种接入小区的方法、装置及系统 技术领域
本发明涉及通信技术领域，特别涉及一种接入小区的方法、装置及系统。
背景技术
当今，移动数字通信网络在中国得到了迅速的发展，随着移动通信业务的增长，利用移动通信网络以及互联网络的现有资源开展移动数据增值业务成为了必然的趋势。
预计到2022年，M2M(Machine-to-Machine，设备对设备)的连接数量将达到500亿，M2M的业务场景主要包含智能家庭/建筑、智能测量(抄表业务)、物流跟踪，环境监控，智能农业以及灾难报警等。不同的业务场景对通信系统的要求不同，例如，针对智能测量这种业务场景，电表、水表、气表等有可能部署在地下室，因此，在这种业务场景下，需要通信系统提供更好的覆盖能力。又例如，针对森林火灾报警这种业务场景，对于终端设备的待机时间提出了更严格的要求，待机时间越长，更换电池等的人工维护成本越低，有利于M2M业务扩展更广的应用领域。
目前，M2M网络中的终端设备主要根据参考信号的强度来选择驻留的小区，进而驻留在该小区，但是，终端设备通过这种方法驻留在该小区的话，存在功耗较大和无线资源利用率较低的缺陷。
例如，终端设备处于小区A和小区B两个小区的覆盖增强区域，终端设备的接收覆盖等级为5dB，其中，小区A的覆盖等级分别为0dB，10dB和20dB，小区B的覆盖等级分别为0dB，6dB和15dB，终端设备接收到的小区A的参考信号的强度，大于终端设备接收到的小区B的参考信号的强度。在这种情况下，终端设备如果按照接收到的参考信号的强度来选择驻留的小区的话，会将小区A作为驻留小区，并选择10dB的覆盖等级，但是，在10dB的覆盖等级下终端设备的功耗较大，且无线资源的利用率较低。
综上所述，目前接入小区的方法存在终端设备功耗较大及无线资源利用率较低的缺陷。
发明内容
本发明实施例提供了一种接入小区的方法，用于解决现有技术中存在的终端设备的功耗较大及无线资源利用率较低的缺陷。
第一方面，提供一种接入小区的方法，包括：
终端设备获取各个小区的信号强度，并将获取的信号强度中的最大值作为第一最大信号强度；
所述终端设备将具备所述第一最大信号强度的小区，作为第一目标小区；
所述终端设备获取所述第一目标小区的第一覆盖信息；
所述终端设备确定所述第一覆盖信息满足所述终端设备的当前覆盖需求时，驻留在所述第一目标小区。
结合第一方面，在第一种可能的实现方式中，所述方法还包括：
所述终端设备确定所述第一覆盖信息不满足所述当前覆盖需求时，确定第二目标小区，并获取所述第二目标小区的第二覆盖信息；
所述终端设备确定所述第二覆盖信息满足所述当前覆盖需求时，驻留在所述第二目标小区。
结合第一方面的第一种可能的实现方式，在第二种可能的实现方式中，所述终端设备确定第二目标小区，包括：
所述终端设备从第一剩余信号强度中选择出第二最大信号强度；
所述终端设备将具备所述第二最大信号强度的小区，作为所述第二目标小区；
其中，所述第一剩余信号强度为所述终端设备获取的信号强度中除去所述第一最大信号强度的剩余信号强度。
结合第一方面的第一种或者第二种可能的实现方式，在第三种可能的实现方式中，所述终端设备获取所述第二目标小区的第二覆盖信息，包括：
所述终端设备在所述第一目标小区中获取所述第二覆盖信息；或者
所述终端设备接入所述第二目标小区，在所述第二目标小区中获取所述第二覆盖信息。
结合第一方面，以及第一方面的第一种至第三种可能的实现方式，在第四种可能的实现方式中，所述第一覆盖信息和所述第二覆盖信息包括覆盖等级信息、编码调制方式、接收信噪比要求、接收信干噪比要求中的一种或者任意组合。
第二方面，提供一种接入小区的方法，包括：
基站确定第二目标小区，所述第二目标小区为处于所述基站的覆盖范围之外的小区；
基站获取第二目标小区的第二覆盖信息，并广播所述第二覆盖信息。
结合第二方面，在第一种可能的实现方式中，所述基站确定所述第二目标小区之前，还包括：
所述基站确定第一目标小区，所述第一目标小区处于所述基站的覆盖范围之内；
所述基站获取所述第一目标小区的第一覆盖信息，并广播所述第一覆盖信息。
结合第二方面的第一种可能的实现方式，在第二种可能的实现方式中，所述第一覆盖信息和所述第二覆盖信息包括覆盖等级信息、编码调制方式、接收信噪比要求、接收信干噪比要求中的一种或者任意组合。
第三方面，提供一种接入小区的方法，包括：
终端设备获取各个小区的信号强度；
所述终端设备将获取的信号强度中大于或者等于信号强度门限值的信号强度分别对应的小区，作为至少一个目标小区；
所述终端设备获取所述至少一个目标小区分别对应的覆盖信息；
所述终端设备根据获取的所述至少一个目标小区分别对应的覆盖信息，选择相应的目标小区进行驻留。
结合第三方面，在第一种可能的实现方式中，所述终端设备获取所述至少一个目标小区分别对应的覆盖信息，包括：
针对所述至少一个目标小区中的任意一目标小区，所述终端设备接入所述任意一目标小区获取所述任意一目标小区所对应的覆盖信息；或者
所述终端设备在第一目标小区中获取所述至少一个目标小区分别对应的覆盖信息，所述第一目标小区为所述至少一个目标小区中对应的信号强度为最大值的目标小区。
结合第三方面，在第二种可能的实现方式中，所述终端设备获取所述至少一个目标小区分别对应的覆盖信息，包括：
所述终端设备确定第一目标小区，并获取所述第一目标小区的覆盖信息，所述第一目标小区为所述至少一个目标小区中对应的信号强度为最大值的目标小区；
所述终端设备接收覆盖信息不同指示，所述覆盖信息不同指示用于指示第二目标小区，所述第二目标小区为所述至少一个目标小区中对应的覆盖信息与所述第一目标小区的覆盖信息不同的小区；
所述终端设备根据所述覆盖信息不同指示，获取所述第二目标小区的覆盖信息。
结合第三方面，以及第三方面的第一种至第二种可能的实现方式，在第三种可能的实现方式中，所述终端设备根据获取的所述至少一个目标小区分别对应的覆盖信息，选择相应的目标小区进行驻留，包括：
所述终端设备根据获取的所述至少一个目标小区分别对应的覆盖信息，从所述至少一个目标小区中筛选出第三目标小区，并驻留在所述第三目标小区。
结合第三方面的第三种可能的实现方式，在第四种可能的实现方式中，所述终端设备根据获取的所述至少一个目标小区分别对应的覆盖信息，从所述至少一个目标小区中筛选出第三目标小区，包括：
所述终端设备从获取的所述至少一个目标小区分别对应的覆盖信息中， 确定出覆盖信息满足覆盖需求的至少一个第四目标小区；
针对所述至少一个第四目标小区中的任意一第四目标小区，分别执行：
所述终端设备确定所述终端设备在所述任意一第四目标小区中的接收信号强度，及所述任意一第四目标小区中对应的要求小于所述接收信号强度的覆盖等级；从对应的要求小于所述接收覆盖等级的覆盖等级中筛选出最大覆盖等级；
所述终端设备确定针对每一个第四目标小区分别筛选出的最大覆盖等级中的最大值；
所述终端设备将所述最大值所对应的第四目标小区作为所述第三目标小区。
结合第三方面，以及第三方面的第一种至第四种可能的实现方式，在第五种可能的实现方式中，所述覆盖信息包括覆盖等级信息、编码调制方式、接收信噪比要求、接收信干噪比要求中的一种或者任意组合。
第四方面，提供一种接入小区的方法，包括：
基站确定至少两个目标小区，所述至少两个目标小区中存在所述基站覆盖范围之外的小区；
所述基站获取所述至少两个目标小区分别对应的覆盖信息；
所述基站广播所述至少两个目标小区分别对应的覆盖信息。
结合第四方面，在第一种可能的实现方式中，基站确定至少两个目标小区之后，还包括：
所述基站从所述至少两个目标小区中确定第一目标小区，所述第一目标小区为所述至少两个目标小区中对应的信号强度为最大值的目标小区；
所述基站向所述终端设备发送覆盖信息不同指示，所述覆盖信息不同指示用于指示所述至少两个目标小区中对应的覆盖信息与所述第一目标小区的覆盖信息不同的第二目标小区。
第五方面，提供一种终端设备，包括：
接收模块，用于获取各个小区的信号强度；
处理模块，用于将所述接收模块获取的信号强度中的最大值作为第一最大信号强度；
所述处理模块还用于，将具备所述处理模块得到的第一最大信号强度的小区，作为第一目标小区；
所述接收模块还用于，获取所述处理模块确定的第一目标小区的第一覆盖信息；
所述处理模块还用于，确定所述接收模块获取的第一覆盖信息满足所述终端设备的当前覆盖需求；
驻留模块，用于在所述处理模块确定所述第一覆盖信息满足所述终端设备的当前覆盖需求时，驻留在所述第一目标小区。
结合第五方面，在第一种可能的实现方式中，所述处理模块还用于，确定所述第一覆盖信息不满足所述当前覆盖需求时，确定第二目标小区；
所述接收模块还用于，获取所述处理模块确定的第二目标小区的第二覆盖信息；
所述处理模块还用于，确定所述接收模块获取的第二覆盖信息满足所述当前覆盖需求；
所述驻留模块还用于，在所述处理模块确定所述第二覆盖信息满足所述当前覆盖需求时，驻留在所述第二目标小区。
结合第五方面的第一种可能的实现方式，在第二种可能的实现方式中，所述处理模块确定第二目标小区时，具体为：
从第一剩余信号强度中选择出第二最大信号强度；
将具备所述第二最大信号强度的小区，作为所述第二目标小区；
其中，所述第一剩余信号强度为所述终端设备获取的信号强度中除去所述第一最大信号强度的剩余信号强度。
结合第五方面的第一种或者第二种可能的实现方式，在第三种可能的实现方式中，所述接收模块获取所述处理模块确定的第二目标小区的第二覆盖信息时，具体为：
在所述处理模块确定的第一目标小区中获取所述第二覆盖信息；或者
接入所述处理模块确定的第二目标小区，在所述第二目标小区中获取所述第二覆盖信息。
结合第五方面，以及第五方面的第一种至第三种可能的实现方式，在第四种可能的实现方式中，所述第一覆盖信息和所述第二覆盖信息包括覆盖等级信息、编码调制方式、接收信噪比要求、接收信干噪比要求中的一种或者任意组合。
第六方面，提供一种基站，包括：
处理模块，用于确定第二目标小区，所述第二目标小区为处于所述基站的覆盖范围之外的小区；
接收模块，用于获取所述处理模块确定的第二目标小区的第二覆盖信息；
发送模块，用于广播所述接收模块获取的第二覆盖信息。
结合第六方面，在第一种可能的实现方式中，所述处理模块还用于，确定第一目标小区，所述第一目标小区处于所述基站的覆盖范围之内；
所述接收模块还用于，获取所述第一目标小区的第一覆盖信息；
所述发送模块还用于，广播所述接收模块获取的第一覆盖信息。
结合第六方面的第一种可能的实现方式，在第二种可能的实现方式中，所述第一覆盖信息和所述第二覆盖信息包括覆盖等级信息、编码调制方式、接收信噪比要求、接收信干噪比要求中的一种或者任意组合。
第七方面，提供一种终端设备，包括：
接收模块，用于获取各个小区的信号强度；
处理模块，用于将所述接收模块获取的信号强度中大于或者等于信号强度门限值的信号强度分别对应的小区，作为至少一个目标小区；
所述接收模块还用于，获取所述处理模块确定的至少一个目标小区分别对应的覆盖信息；
所述处理模块还用于，根据所述接收模块获取的所述至少一个目标小区分别对应的覆盖信息，选择相应的目标小区进行驻留。
结合第七方面，在第一种可能的实现方式中，所述接收模块获取所述处理模块确定的至少一个目标小区分别对应的覆盖信息时，具体为：
针对所述至少一个目标小区中的任意一目标小区，接入所述任意一目标小区获取所述任意一目标小区所对应的覆盖信息；或者
在所述处理模块确定的第一目标小区中获取所述至少一个目标小区分别对应的覆盖信息，所述第一目标小区为所述至少一个目标小区中对应的信号强度为最大值的目标小区。
结合第七方面，在第二种可能的实现方式中，所述处理模块还用于，确定第一目标小区，所述第一目标小区为所述至少一个目标小区中对应的信号强度为最大值的目标小区；
所述接收模块获取所述处理模块确定的至少一个目标小区分别对应的覆盖信息时，具体为：
获取所述处理模块确定的第一目标小区的覆盖信息，；
接收覆盖信息不同指示，所述覆盖信息不同指示用于指示第二目标小区，所述第二目标小区为所述至少一个目标小区中对应的覆盖信息与所述第一目标小区的覆盖信息不同的小区；
根据所述覆盖信息不同指示，获取所述第二目标小区的覆盖信息。
结合第七方面，以及第七方面的第一种至第二种可能的实现方式，在第三种可能的实现方式中，所述处理模块根据所述接收模块获取的所述至少一个目标小区分别对应的覆盖信息，选择相应的目标小区进行驻留时，具体为：
根据所述接收模块获取的所述至少一个目标小区分别对应的覆盖信息，从所述处理模块确定的至少一个目标小区中筛选出第三目标小区，并驻留在所述第三目标小区。
结合第七方面的第三种可能的实现方式，在第四种可能的实现方式中，所述处理模块根据所述接收模块获取的所述至少一个目标小区分别对应的覆盖信息，从所述处理模块确定的至少一个目标小区中筛选出第三目标小区时，具体为：
从所述接收模块获取的所述至少一个目标小区分别对应的覆盖信息中，确定出覆盖信息满足覆盖需求的至少一个第四目标小区；
针对所述至少一个第四目标小区中的任意一第四目标小区，分别执行：
确定所述终端设备在所述任意一第四目标小区中的接收信号强度，及所述任意一第四目标小区中对应的要求小于所述接收信号强度的覆盖等级；从对应的要求小于所述接收覆盖等级的覆盖等级中筛选出最大覆盖等级；
确定针对每一个第四目标小区分别筛选出的最大覆盖等级中的最大值；
将所述最大值所对应的第四目标小区作为所述第三目标小区。
结合第七方面，以及第七方面的第一种至第四种可能的实现方式，在第五种可能的实现方式中，所述覆盖信息包括覆盖等级信息、编码调制方式、接收信噪比要求、接收信干噪比要求中的一种或者任意组合。
第八方面，提供一种基站，包括：
处理模块，用于确定至少两个目标小区，所述至少两个目标小区中存在所述基站覆盖范围之外的小区；
接收模块用于，获取所述处理模块确定的至少两个目标小区分别对应的覆盖信息；
发送模块，用于广播所述接收模块获取的至少两个目标小区分别对应的覆盖信息。
结合第八方面，在第一种可能的实现方式中，所述处理模块还用于，从所述处理模块确定的至少两个目标小区中确定第一目标小区，所述第一目标小区为所述至少两个目标小区中对应的信号强度为最大值的目标小区；
所述发送模块还用于，向所述终端设备发送覆盖信息不同指示，所述覆盖信息不同指示用于指示所述至少两个目标小区中对应的覆盖信息与所述第一目标小区的覆盖信息不同的第二目标小区。
第九方面，提供一种通信系统，包括如第五方面，或者第五方面的第一种至第四种可能的实现方式任一项所述的终端设备，及第六方面，或者第六方面的第一种至第二种可能的实现方式任一项所述的基站。
第十方面，提供一种通信系统，包括如第七方面，或者第七方面的第一种至第五种可能的实现方式任一项所述的终端设备，及如第八方面或者第八方面的第一种可能的实现方式所述的基站。
本发明实施例中提供一种接入小区的方法，终端设备获取各个小区的信号强度，并将获取的信号强度中的最大值作为第一最大信号强度；终端设备将具备第一最大信号强度的小区，作为第一目标小区；终端设备，并获取第一目标小区的第一覆盖信息；终端设备确定第一覆盖信息满足终端设备的当前覆盖需求时，驻留在第一目标小区，在该方案中，终端设备在接入小区时，要参考小区的覆盖信息，在覆盖信息满足终端设备的当前覆盖需求时，才驻留在该小区，因此，避免了目前存在的终端设备的功耗较大及无线资源利用率较低的缺陷。
附图说明
图1为本发明实施例提供的接入小区的一种流程图；
图2为本发明实施例提供的接入小区的另一种流程图；
图3为本发明实施例提供的接入小区的另一种流程图；
图4为本发明实施例提供的接入小区的另一种流程图；
图5为本发明实施例提供的接入小区的一种实施例；
图6为本发明实施例提供的接入小区的另一种实施例；
图7A为本发明实施例提供的终端设备的一种示意图；
图7B为本发明实施例提供的终端设备的另一种示意图；
图8A为本发明实施例提供的基站的一种示意图；
图8B为本发明实施例提供的基站的另一种示意图；
图9A为本发明实施例提供的终端设备的另一种示意图；
图9B为本发明实施例提供的终端设备的另一种示意图；
图10A为本发明实施例提供的基站的另一种示意图；
图10B为本发明实施例提供的基站的另一种示意图。
具体实施方式
为了使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明作进一步地详细描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
本文中描述的技术可用于各种通信系统，例如，GSM(Global System for Mobile communications，全球移动通信系统)，CDMA(Code Division Multiple Access，码分多址)系统，TDMA(Time Division Multiple Access，时分多址)系统，WCDMA(Wideband Code Division Multiple Access Wireless，宽带码分多址)，FDMA(Frequency Division Multiple Addressing，频分多址)系统，OFDMA(Orthogonal Frequency-Division Multiple Access，正交频分多址)系统，单载波FDMA(SC-FDMA(Single-carrier Frequency-Division Multiple Access，单载波频分多址))系统，GPRS(General Packet Radio Service，通用分组无线业务)系统，(LTE(Long Term Evolution，长期演进)系统，以及其他此类通信系统。
本文中结合无线终端设备设备和/或基站来描述各种方面。
无线终端设备可以是指向用户提供语音和/或数据连通性的设备，具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备。无线终端设备可以经RAN(Radio Access Network，无线接入网)与一个或多个核心网进行通信，无线终端设备可以是移动终端设备，如移动电话(或称为“蜂窝”电话)和具有移动终端设备的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。例如，PCS(Personal Communication Service，个人通信业务)电话、无绳电话、SIP(Session Initiation Protocol，会话发起协议话机、WLL(Wireless Local Loop，无线本地环路)站、PDA(Personal Digital Assistant，个人数字 助理)等设备。无线终端设备也可以称为系统、SU(Subscriber Unit，订户单元)、SS(Subscriber Station，订户站)，MS(Mobile Station，移动站)、移动台(Mobile)、RS(Remote Station，远程站)、AP(Access Point，接入点)、RT(Remote Terminal，远程终端设备)、AT(Access Terminal，接入终端设备)、UT(User Terminal，用户终端设备)、UA(User Agent，用户代理)、UD(User Device，用户设备)、或UE(User Equipment，用户装备)。
基站(例如，接入点)可以是指接入网中在空中接口上通过一个或多个扇区与无线终端设备通信的设备。基站可用于将收到的空中帧与IP(Internet Protocol，互联网协议)分组进行相互转换，作为无线终端设备与接入网的其余部分之间的路由器，其中接入网的其余部分可包括网际协议(IP)网络。基站还可协调对空中接口的属性管理。例如，基站可以是GSM或CDMA中的BTS，(Base Transceiver Station，基站)，也可以是WCDMA中的基站(NodeB)，还可以是LTE中的eNB(Evolved Node B，演进型基站)或e-NodeB(Evolutional Node B，演进型基站)，本申请并不限定。
需要说明的是，本发明提供的核心网节点设备可以应用于不同的通信网络系统，包括但不限于SAE(System Architecture Evolved，系统架构演进网络)/LTE网络、UMTS(Universal Mobile Telecommunications System，通用移动通信系统)网络、CDMA等。核心网节点设备包括但不限于移动性管理实体MME(Mobile Management Entity，移动性管理实体)、SGSN(Serving GPRS Support Node，服务GPRS支持节点；GPRS(General Packet Radio Service，通用分组无线业务))或者是MSC(Mobile Switching Center，移动交换中心)，在此不进行限定。例如，对于SAE/LTE网络而言，其核心网节点设备可以是MME，无线接入节点设备可以是eNB；对于UMTS网络而言，其核心网节点设备可以是SGSN或MSC，无线接入节点设备可以是RNC或者nodeB。下面以蜂窝网络为SAE/LTE网络为例进行说明，其他蜂窝网络可以参照下述实施例实施。
另外，本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例 如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字母“/”，一般表示前后关联对象是一种“或”的关系。
下面结合说明书附图对本发明优选的实施方式进行详细说明，应当理解，此处所描述的优选实施例仅用于说明和解释本发明，并不用于限定本发明，并且在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
下面结合附图对本发明优选的实施方式进行详细说明。
实施例一
参阅图1所示，本发明实施例中，接入小区的一种流程如下：
步骤100：终端设备获取各个小区的信号强度，并将获取的信号强度中的最大值作为第一最大信号强度；
步骤110：终端设备将具备第一最大信号强度的小区，作为第一目标小区；
步骤120：终端设备获取第一目标小区的第一覆盖信息；
步骤130：终端设备确定第一覆盖信息满足终端设备的当前覆盖需求时，驻留在第一目标小区。
本发明实施例中，可选的，信号强度可以为参考信号强度，当然，也可以为其他形式的信号强度，在此不再进行详述。下面以参考信号强度为例进行说明。
例如：终端设备获取了10个小区的参考信号，各个小区的参考信号的参考信号强度如下：参考信号强度1、参考信号强度2、参考信号强度3、……、参考信号强度10，参考信号强度1与小区1对应、参考信号强度2与小区2对应、参考信号强度3与小区3对应、……、参考信号强度10与小区10对应，如果参考信号强度4是10个参考信号强度中的最大值，则将参考信号强度4对应的小区4作为第一目标小区；如果参考信号强度5是10个参考信号强度中的最大值，则将参考信号强度5对应的小区5作为第一目标小区；如果参考信号强度6是10个参考信号强度中的最大值，则将参考信号强度6对应的小区6作为第一目标小区，依次类推，在此不再进行一一详述。
上述描述的是第一目标小区的第一覆盖信息满足终端设备的当前覆盖需 求的情况，在实际应用中，第一覆盖信息可能不满足终端设备的当前覆盖需求，因此，本发明实施例中，该方法还包括如下操作：
终端设备确定第一覆盖信息不满足当前覆盖需求时，确定第二目标小区，并获取第二目标小区的第二覆盖信息；
终端设备确定第二覆盖信息满足当前覆盖需求时，驻留在第二目标小区。
例如，终端设备确定第一目标小区，并获取第一目标小区的第一覆盖信息，判断第一覆盖信息是否满足终端设备的当前覆盖需求，若是，终端设备驻留在第一目标小区，否则，确定第二目标小区，并获取第二目标小区的第二覆盖信息，在确定第二覆盖信息满足终端设备的当前覆盖需求时，终端设备驻留在第二目标小区。
上述描述的是在第一目标小区的第一覆盖信息不满足终端设备的当前覆盖需求时，驻留在第二目标小区的情况，但是，在实际应用中，第二目标小区的第二覆盖信息也可能不满足终端设备的当前覆盖需求，此时，终端设备要确定第三目标小区，并判断第三目标小区的第三覆盖信息是否满足终端设备的当前覆盖需求，若满足，终端设备驻留在第三目标小区，否则，确定第四目标小区，并执行判断判断第四目标小区的第四覆盖信息是否满足终端设备的当前覆盖需求的步骤，后续过程跟上述过程类似，在此不再进行详述。
本发明实施例中，终端设备确定第二目标小区的方式有多种，可选的，可以采用如下方式：
终端设备从第一剩余信号强度中选择出第二最大信号强度；
终端设备将具备第二最大信号强度的小区作为第二目标小区；
其中，第一剩余信号强度为终端设备获取的信号强度中除去第一最大信号强度的剩余信号强度，第一最大信号强度为获取的信号强度中的最大值。
下面仍以参考信号为例进行说明。
例如：终端设备获取了10个小区的参考信号，各个参考信号的参考信号强度如下：参考信号强度1、参考信号强度2、参考信号强度3、……、参考信号强度10，参考信号强度1与小区1对应、参考信号强度2与小区2对应、 参考信号强度3与小区3对应、……、参考信号强度10与小区10对应，如果参考信号强度4是10个参考信号强度中的最大值，则将参考信号强度4对应的小区4作为第一目标小区；判断小区4的第一覆盖信息是否满足终端设备的当前覆盖需求，若是，将终端设备驻留在小区4，否则，确定10个参考信号强度中除去参考信号强度4之外的其他参考信号中的最大值，若剩下的9个参考信号强度(参考信号强度1、参考信号强度2、参考信号强度3、……、参考信号强度10)中参考信号强度1为最大值，则将参考信号强度1对应的小区1作为第二目标小区；判断小区1的第二覆盖信息是否满足终端设备的当前覆盖需求，若是，将终端设备驻留在小区1，否则，确定9个参考信号强度中除去参考信号强度1之外的其他参考信号中的最大值，若剩下的8个参考信号强度(参考信号强度2、参考信号强度3、……、参考信号强度10)中参考信号强度2为最大值，则将参考信号强度2对应的小区2作为第三目标小区；判断小区2的第三覆盖信息是否满足终端设备的当前覆盖需求，若是，将终端设备驻留在小区2，否则，再返回从剩余的7个参考信号强度中确定出最大值的步骤，后续步骤跟上述过程类似，在此不再进行一一详述。
本发明实施例中，终端设备在获取第二覆盖信息、第三覆盖信息、第四覆盖信息等覆盖信息时，可以接入至对应的小区去获取，例如，获取第二覆盖信息时，接入在第二目标小区去获取第二覆盖信息；获取第三覆盖信息时，接入在第三目标小区去获取第三覆盖信息；获取第四覆盖信息时，接入在第四目标小区去获取第四覆盖信息。
为了缩短终端设备获取除了第一覆盖信息之外的其他覆盖信息的时长，例如，第二覆盖信息、第三覆盖信息、第四覆盖信息等，终端设备获取这些其他覆盖信息时，可以在第一目标小区中获取第二覆盖信息、第三覆盖信息、第四覆盖信息等。
因此，本发明实施例中，终端设备获取第二目标小区的第二覆盖信息时，可选的，可以采用如下方式：
终端设备在第一目标小区中获取第二覆盖信息；或者
终端设备接入第二目标小区，在第二目标小区中获取第二覆盖信息。
本发明实施例中，可选的，第一覆盖信息和第二覆盖信息包括覆盖等级信息、编码调制方式、接收信噪比要求、接收信干噪比要求中的一种或者任意组合。
本发明实施例中，终端设备还可以通过同步序列获取第一目标小区所支持的覆盖等级。
在实施例一中，终端设备在接入驻留在第一目标小区时，要参考第一目标小区的第一覆盖信息，当第一覆盖信息满足终端设备的当前覆盖需求时，才驻留在第一目标小区，在驻留在小区时，参考该小区的覆盖信息的话，会避免终端设备功耗较大及无线资源利用率较低的缺陷。
实施例二
参阅图2所示，本发明实施例中，还提出一种接入小区的方法，该方法的流程如下：
步骤200：基站确定第二目标小区，第二目标小区为处于基站的覆盖范围之外的小区；
步骤210：基站获取第二目标小区的第二覆盖信息，并广播第二覆盖信息。
在该实施例中，基站可以获取处于覆盖范围之外的第二目标小区的第二覆盖信息，并广播该第二覆盖信息，终端设备不需要移动到为第二目标小区提供服务的基站下去获取第二覆盖信息，因此，提高了终端设备接入小区的效率。
本发明实施例中，基站确定第二目标小区之前，还包括如下操作：
基站确定第一目标小区，第一目标小区为处于基站的覆盖范围之内的小区；
基站获取第一目标小区的第一覆盖信息，并广播第一覆盖信息。
其中，可选的，第一覆盖信息和第二覆盖信息包括覆盖等级信息、编码调制方式、接收信噪比要求、接收信干噪比要求中的一种或者任意组合。
上述实施例中描述的是先确定目标小区，再获取目标小区的覆盖信息， 例如，先确定出第一目标小区，再获取第一目标小区的第一覆盖信息，第一覆盖信息不满足终端设备当前的覆盖需求的话，再确定出第二目标小区，再获取第二目标小区的第二覆盖信息。当然，在实际应用中，也可以是先确定出多个目标小区，获取多个目标小区分别对应的覆盖信息，再根据获取的多个目标小区分别对应的覆盖信息，选择相应的目标小区进行驻留。
实施例三
参阅图3所示，本发明实施例中，还提出一种接入小区的方法，该方法的流程如下：
步骤300：终端设备获取各个小区的信号强度；
步骤310：终端设备将获取的信号强度中大于或者等于信号强度门限值的信号强度分别对应的小区，作为至少一个目标小区；
步骤320：终端设备获取至少一个目标小区分别对应的覆盖信息；
步骤330：终端设备根据获取的至少一个目标小区分别对应的覆盖信息，选择相应的目标小区进行驻留。
例如，终端设备确定出3个目标小区，3个目标小区对应的覆盖信息分别为：第一覆盖信息、第二覆盖信息和第三覆盖信息，终端设备根据第一覆盖信息、第二覆盖信息和第三覆盖信息从3个目标小区中选择出相应的目标小区，并在选择出的相应的目标小区中进行驻留。
本发明实施例中，可选的，信号强度可以为参考信号强度，当然，也可以为其他形式的信号强度，在此不再进行详述。下面以参考信号强度为例进行说明。
例如：终端设备获取了10个小区的参考信号，各个参考信号的参考信号强度如下：参考信号强度1、参考信号强度2、参考信号强度3、……、参考信号强度10，参考信号强度1与小区1对应、参考信号强度2与小区2对应、参考信号强度3与小区3对应、……、参考信号强度10与小区10对应，若参考信号强度1、参考信号强度2、参考信号强度5、参考信号强度7均大于参考信号强度门限值，则将小区1、小区2、小区5和小区7均作为目标小区； 或者，若参考信号强度4、参考信号强度5、参考信号强度6、参考信号强度7均大于参考信号强度门限值，则将小区4、小区5、小区6和小区7均作为目标小区。
本发明实施例中，终端设备获取至少一个目标小区分别对应的覆盖信息的方式有多种，可选的，可以采用如下方式：
针对至少一个目标小区中的任意一目标小区，终端设备处于任意一目标小区所属基站下，获取任意一目标小区所对应的覆盖信息。
也就是说，终端设备要获取哪个目标小区的覆盖信息，要移动到为该目标小区提供服务的基站下去获取，例如，小区4、小区5、小区6和小区7均作为目标小区，获取小区4的覆盖信息时，移动到为小区4提供服务的基站下去获取；获取小区5的覆盖信息时，移动到为小区5提供服务的基站下去获取；获取小区6的覆盖信息时，移动到为小区6提供服务的基站下去获取；获取小区7的覆盖信息时，移动到为小区7提供服务的基站下去获取。
但是，上述过程存在耗时较长、效率较低的缺陷，因此，终端设备获取至少一个目标小区分别对应的覆盖信息时，也可以采用如下方式：
终端设备在第一目标小区中获取至少一个目标小区分别对应的覆盖信息，第一目标小区为至少一个目标小区中对应的信号强度为最大值的目标小区。
例如，小区4、小区5、小区6和小区7均作为目标小区，4个目标小区中小区4对应的信号强度为最大值，则在为小区4提供服务的基站下获取4个目标小区分别对应的覆盖信息。
当然，也可以采用如下方式：
终端设备在任意一小区所属基站下，获取至少一个目标小区分别对应的覆盖信息，任意一小区属于至少一个目标小区。
也就是说，要获取至少一个目标小区分别对应的覆盖信息时，在其中一个目标小区所属基站下，就可以获取至少一个目标小区分别对应的覆盖信息，例如，小区4、小区5、小区6和小区7均作为目标小区，移动到为小区4提 供服务的基站下，可以获取小区4、小区5、小区6和小区7分别对应的覆盖信息；或者，移动到为小区5提供服务的基站下，可以获取小区4、小区5、小区6和小区7分别对应的覆盖信息；或者，移动到为小区6提供服务的基站下，可以获取小区4、小区5、小区6和小区7分别对应的覆盖信息；或者，移动到为小区7提供服务的基站下，可以获取小区4、小区5、小区6和小区7分别对应的覆盖信息。
本发明实施例中，终端设备获取至少一个目标小区分别对应的覆盖信息时，可选的，可以采用如下方式：
终端设备确定第一目标小区，并获取第一目标小区的覆盖信息，第一目标小区为至少一个目标小区中对应的信号强度为最大值的目标小区；
终端设备接收覆盖信息不同指示，覆盖信息不同指示用于指示第二目标小区，第二目标小区为至少一个目标小区中对应的覆盖信息与第一目标小区的覆盖信息不同的小区；
终端设备根据覆盖信息不同指示获取第二目标小区的覆盖信息。
也就是说，在获取至少一个目标小区分别对应的覆盖信息时，不是说要对每一个目标小区都要去获取对应的覆盖信息，而是先获取第一目标小区的覆盖信息，然后，接收覆盖信息不同指示，根据盖信息不同指示可以确定至少一个目标小区中有哪些目标小区的覆盖信息与第一目标小区的覆盖信息不同，获取与第一目标小区的覆盖信息不同的目标小区的覆盖信息即可。
例如：小区4、小区5、小区6和小区7均作为目标小区，小区4为第一目标小区，获取小区4的覆盖信息，接收覆盖信息不同指示，根据盖信息不同指示可以确定出4个目标小区中的小区6与小区4的覆盖信息不同，则去获取小区6的覆盖信息即可。
从上述举例可以看出，终端设备不需要获取小区4、小区5、小区6和小区7分别对应的覆盖信息，先获取小区4的覆盖信息，覆盖信息不同指示确定出小区6与小区4的覆盖信息不同，然后，根据覆盖信息不同指示去获取小区6的覆盖信息即可。
本发明实施例中，终端设备根据获取的至少一个目标小区分别对应的覆盖信息，选择相应的目标小区进行驻留时，可选的，可以采用如下方式：
终端设备根据获取的至少一个目标小区分别对应的覆盖信息，从至少一个目标小区中筛选出第三目标小区，并驻留在第三目标小区。
本发明实施例中，终端设备根据获取的至少一个目标小区分别对应的覆盖信息，从至少一个目标小区中筛选出第三目标小区时，可选的，可以采用如下方式：
终端设备从获取的至少一个目标小区分别对应的覆盖信息中，确定出覆盖信息满足覆盖需求的至少一个第四目标小区；
针对至少一个第四目标小区中的任意一第四目标小区，分别执行：
终端设备确定终端设备在任意一第四目标小区中的接收信号强度，及任意一第四目标小区中对应的要求小于接收信号强度的覆盖等级；从对应的要求小于信号强度的覆盖等级中筛选出最大覆盖等级；
终端设备确定针对每一个第四目标小区分别筛选出的最大覆盖等级中的最大值；
终端设备将最大值所对应的第四目标小区作为第三目标小区。
例如：小区4、小区5、小区6和小区7均作为目标小区，4个目标小区的覆盖信息均满足覆盖需求，针对小区4，执行如下过程：
确定小区4的接收信号强度1，及小区4中对应的要求小于接收信号强度1的覆盖等级：覆盖等级1、覆盖等级2、覆盖等级3；
从覆盖等级1、覆盖等级2和覆盖等级3中选择出最大覆盖等级为覆盖等级3；
针对小区5，执行如下过程：
确定小区5的接收信号强度2，及小区5中对应的要求小于接收信号强度2的覆盖等级：覆盖等级4、覆盖等级5、覆盖等级6；
从覆盖等级4、覆盖等级5、覆盖等级6中选择出最大覆盖等级为覆盖等级6；
针对小区6，执行如下过程：
确定小区6的接收信号强度3，及小区6中对应的要求小于接收信号强度3的覆盖等级：覆盖等级7、覆盖等级8、覆盖等级9；
从覆盖等级7、覆盖等级8、覆盖等级9中选择出最大覆盖等级为覆盖等级9；
针对小区7，执行如下过程：
确定小区7的接收信号强度4，及小区7中对应的要求小于接收信号强度4的覆盖等级：覆盖等级10、覆盖等级11、覆盖等级12；
从覆盖等级10、覆盖等级11、覆盖等级12中选择出最大覆盖等级为覆盖等级12；
再确定覆盖等级3、覆盖等级6、覆盖等级9、覆盖等级12中的最大值，如果覆盖等级3为最大值，则将小区4作为第三目标小区，如果覆盖等级6为最大值，则将小区5作为第三目标小区，如果覆盖等级9为最大值，则将小区6作为第三目标小区，如果覆盖等级12为最大值，则将小区7作为第三目标小区。
本发明实施例中，可选的，覆盖信息包括覆盖等级信息、编码调制方式、接收信噪比要求、接收信干噪比要求中的一种或者任意组合。
在实施例三中，终端设备驻留在某目标小区时，要参考该目标小区的覆盖信息，参考该目标小区的覆盖信息的话，会避免终端设备功耗较大及无线资源利用率较低的缺陷。
实施例四
参阅图4所示，本发明实施例中，还提出一种接入小区的方法，该方法流程如下：
步骤400：基站确定至少两个目标小区，至少两个目标小区中存在基站覆盖范围之外的小区；
步骤410：基站获取至少两个目标小区分别对应的覆盖信息；
步骤420：基站广播至少两个目标小区分别对应的覆盖信息。
在该实施例中，基站可以获取至少两个目标小区的覆盖信息，并进行广播，而现有技术中，基站只能获取覆盖范围下的一个小区的覆盖信息，并进行广播，这样，终端设备要获取多个目标小区的覆盖信息时，不需要分别移动至多个目标小区分别所属的基站下，在一个基站下就可以获取，因此，提高了终端设备获取多个覆盖信息的效率。
本发明实施例中，基站确定至少两个目标小区之后，还包括如下操作：
基站从至少两个目标小区中确定第一目标小区，第一目标小区为至少两个目标小区中对应的信号强度为最大值的目标小区；
基站向终端设备发送覆盖信息不同指示，覆盖信息不同指示用于指示至少两个目标小区中对应的覆盖信息与第一目标小区的覆盖信息不同的第二目标小区。
本发明实施例中，可选的，信号强度可以为参考信号强度，当然，也可以为其他形式的信号强度，在此不再进行详述。下面以参考信号强度为例进行说明。
为了更好地理解本发明实施例，以下给出具体应用场景，针对接入小区的过程，作出进一步详细描述，如图5所示：
步骤500：终端设备获取到3个参考信号强度：参考信号强度1、参考信号强度2、参考信号强度3；
步骤510：终端设备确定3个参考信号强度中参考信号强度3为最大值，则将参考信号强度3对应的小区3作为第一目标小区；
步骤520：终端设备获取小区3的第一覆盖信息；
步骤530：终端设备判断第一覆盖信息是否满足终端设备的当前覆盖需求，若是，驻留在小区3，否则，执行步骤540；
步骤540：终端设备从考信号强度1、参考信号强度2中确定出参考信号强度2为最大值，则将参考信号强度2对应的小区作为第二目标小区；
步骤550：终端设备获取小区2的第二覆盖信息；
步骤560：终端设备判断第二覆盖信息是否满足终端设备的当前覆盖需 求，若是，驻留在小区2，否则，执行步骤570；
步骤570：终端设备获取小区1的第三覆盖信息，判断第三覆盖信息是否满足终端设备的当前覆盖需求，若是，驻留在小区1，否则结束流程。
为了更好地理解本发明实施例，以下给出具体应用场景，针对接入小区的过程，作出进一步详细描述，如图6所示：
步骤600：终端设备获取到5个参考信号强度：参考信号强度1、参考信号强度2、参考信号强度3、参考信号强度4、参考信号强度5；
步骤610：终端设备确定参考信号强度1、参考信号强度2、参考信号强度3参考信号强度门限值，则将小区1、小区2和小区3作为目标小区；
步骤620：终端设备获取小区1、小区2和小区3分别对应的覆盖信息，确定小区1和小区2分别对应的覆盖信息满足覆盖需求；
步骤630：终端设备从小区1和小区2中筛选出小区1作为第三目标小区，并驻留在小区1。
在该实施例中，终端设备从小区1和小区2中筛选出小区1作为第三目标小区时，可选的，可以采用如下方式：
针对小区1：终端设备确定终端设备在小区1中的接收信号强度，及小区1中对应的要求小于接收信号强度的覆盖等级；从对应的要求小于接收信号强度的覆盖等级中筛选出最大覆盖等级；
针对小区2：终端设备确定终端设备在小区2中的接收信号强度，及小区2中对应的要求小于接收信号强度的覆盖等级；从对应的要求小于接收信号强度的覆盖等级中筛选出最大覆盖等级；
终端设备确定出出针对小区1和小区2分别筛选出的最大覆盖等级中的最大值，最大值对应小区1，则将小区1作为第三目标小区。
参阅图7A所示，本发明实施例提供一种用户设备，该用户设备包括接收模块70、处理模块71和驻留模块72，其中：
接收模块70，用于获取各个小区的信号强度；
处理模块71，用于将接收模块70获取的信号强度中的最大值作为第一最 大信号强度；
处理模块71还用于，将具备处理模块71得到的第一最大信号强度的小区，作为第一目标小区；
接收模块70还用于，获取处理模块71确定的第一目标小区的第一覆盖信息；
处理模块71还用于，确定接收模块70获取的第一覆盖信息满足终端设备的当前覆盖需求；
驻留模块72，用于在处理模块71确定第一覆盖信息满足终端设备的当前覆盖需求时，驻留在第一目标小区。
进一步的，处理模块71还用于，确定第一覆盖信息不满足当前覆盖需求时，确定第二目标小区；
接收模块70还用于，获取处理模块71确定的第二目标小区的第二覆盖信息；
处理模块71还用于，确定接收模块70获取的第二覆盖信息满足当前覆盖需求；
驻留模块72还用于，在处理模块71确定第二覆盖信息满足当前覆盖需求时，驻留在第二目标小区。
可选的，处理模块71确定第二目标小区时，具体为：
从第一剩余信号强度中选择出第二最大信号强度；
将具备第二最大信号强度的小区，作为第二目标小区；
其中，第一剩余信号强度为终端设备获取的信号强度中除去第一最大信号强度的剩余信号强度。
可选的，接收模块70获取处理模块71确定的第二目标小区的第二覆盖信息时，具体为：
在处理模块71确定的第一目标小区中获取第二覆盖信息；或者
接入处理模块71确定的第二目标小区，在第二目标小区中获取第二覆盖信息。
可选的，第一覆盖信息和第二覆盖信息包括覆盖等级信息、编码调制方式、接收信噪比要求、接收信干噪比要求中的一种或者任意组合。
参阅图7B所示，本发明实施例提供一种用户设备，该用户设备包括接收器700、处理器710，其中：
接收器700，用于获取各个小区的信号强度；
处理器710，用于将接收器700获取的信号强度中的最大值作为第一最大信号强度；
处理器710还用于，将具备处理器710得到的第一最大信号强度的小区，作为第一目标小区；
接收器700还用于，获取处理器710确定的第一目标小区的第一覆盖信息；
处理器710还用于，确定接收器700获取的第一覆盖信息满足终端设备的当前覆盖需求；
处理器710还用于，在处理器710确定第一覆盖信息满足终端设备的当前覆盖需求时，驻留在第一目标小区。
需要说明的是，接收器700还可以执行图7A中所示的接收模块70所执行的其他操作，处理器710还可以执行图7A中所示的处理模块71和驻留模块72所执行的其他操作。
参阅图8A所示，本发明实施例提供一种基站，该基站包括处理模块80、接收模块81和发送模块82，其中：
处理模块80，用于确定第二目标小区，第二目标小区为处于基站的覆盖范围之外的小区；
接收模块81，用于获取处理模块80确定的第二目标小区的第二覆盖信息；
发送模块82，用于广播接收模块81获取的第二覆盖信息。
进一步的，处理模块80还用于，确定第一目标小区，第一目标小区处于基站的覆盖范围之内；
接收模块81还用于，获取第一目标小区的第一覆盖信息；
发送模块82还用于，广播接收模块81获取的第一覆盖信息。
可选的，第一覆盖信息和第二覆盖信息包括覆盖等级信息、编码调制方式、接收信噪比要求、接收信干噪比要求中的一种或者任意组合。
参阅图8B所示，本发明实施例提供一种基站，该基站包括处理器800、接收器810、和发射器820，其中：
处理器800，用于确定第二目标小区，第二目标小区为处于基站的覆盖范围之外的小区；
接收器810，用于获取处理器800确定的第二目标小区的第二覆盖信息；
发射器820，用于广播接收器810获取的第二覆盖信息。
需要说明的是，处理器800还可以执行图8A中所示的处理模块80所执行的其他操作，接收器810还可以执行图8A中所示的接收模块81所执行的其他操作，发射器820还可以执行图8A中所示的发送模块82所执行的其他操作。
参阅图9A所示，本发明实施例提供一种终端设备，该终端设备包括接收模块90、处理模块91，其中：
接收模块90，用于获取各个小区的信号强度；
处理模块91，用于将接收模块90获取的信号强度中大于或者等于信号强度门限值的信号强度分别对应的小区，作为至少一个目标小区；
接收模块90还用于，获取处理模块91确定的至少一个目标小区分别对应的覆盖信息；
处理模块91还用于，根据接收模块90获取的至少一个目标小区分别对应的覆盖信息，选择相应的目标小区进行驻留。
可选的，接收模块90获取处理模块91确定的至少一个目标小区分别对应的覆盖信息时，具体为：
针对至少一个目标小区中的任意一目标小区，接入任意一目标小区获取任意一目标小区所对应的覆盖信息；或者
在处理模块91确定的第一目标小区中获取至少一个目标小区分别对应的 覆盖信息，第一目标小区为至少一个目标小区中对应的信号强度为最大值的目标小区。
进一步的，处理模块91还用于，确定第一目标小区，第一目标小区为至少一个目标小区中对应的信号强度为最大值的目标小区；
接收模块90获取处理模块91确定的至少一个目标小区分别对应的覆盖信息时，具体为：
获取处理模块91确定的第一目标小区的覆盖信息，；
接收覆盖信息不同指示，覆盖信息不同指示用于指示第二目标小区，第二目标小区为至少一个目标小区中对应的覆盖信息与第一目标小区的覆盖信息不同的小区；
根据覆盖信息不同指示，获取第二目标小区的覆盖信息。
可选的，处理模块91根据接收模块90获取的至少一个目标小区分别对应的覆盖信息，选择相应的目标小区进行驻留时，具体为：
根据接收模块90获取的至少一个目标小区分别对应的覆盖信息，从处理模块91确定的至少一个目标小区中筛选出第三目标小区，并驻留在第三目标小区。
可选的，处理模块91根据接收模块90获取的至少一个目标小区分别对应的覆盖信息，从处理模块91确定的至少一个目标小区中筛选出第三目标小区时，具体为：
从接收模块90获取的至少一个目标小区分别对应的覆盖信息中，确定出覆盖信息满足覆盖需求的至少一个第四目标小区；
针对至少一个第四目标小区中的任意一第四目标小区，分别执行：
确定终端设备在任意一第四目标小区中的接收信号强度，及任意一第四目标小区中对应的要求小于接收信号强度的覆盖等级；从对应的要求小于接收覆盖等级的覆盖等级中筛选出最大覆盖等级；
确定针对每一个第四目标小区分别筛选出的最大覆盖等级中的最大值；
将最大值所对应的第四目标小区作为第三目标小区。
可选的，覆盖信息包括覆盖等级信息、编码调制方式、接收信噪比要求、接收信干噪比要求中的一种或者任意组合。
参阅图9B所示，本发明实施例提供一种终端设备，该终端设备包括接收器900、处理器910，其中：
接收器900，用于获取各个小区的信号强度；
处理器910，用于将接收器900获取的信号强度中大于或者等于信号强度门限值的信号强度分别对应的小区，作为至少一个目标小区；
接收器900还用于，获取处理器910确定的至少一个目标小区分别对应的覆盖信息；
处理器910还用于，根据接收器900获取的至少一个目标小区分别对应的覆盖信息，选择相应的目标小区进行驻留。
需要说明的是，接收器900还可以执行图9A中所示的接收模块90所执行的其他操作，处理器910还可以执行图9A中所示的处理模块91所执行的其他操作。
参阅图10A所示，本发明实施例提供一种基站，该基站包括处理模块100、接收模块101和发送模块102，其中：
处理模块100，用于确定至少两个目标小区，至少两个目标小区中存在基站覆盖范围之外的小区；
接收模块101用于，获取处理模块100确定的至少两个目标小区分别对应的覆盖信息；
发送模块102，用于广播接收模块101获取的至少两个目标小区分别对应的覆盖信息。
进一步的，处理模块100还用于，从处理模块100确定的至少两个目标小区中确定第一目标小区，第一目标小区为至少两个目标小区中对应的信号强度为最大值的目标小区；
发送模块102还用于，向终端设备发送覆盖信息不同指示，覆盖信息不同指示用于指示至少两个目标小区中对应的覆盖信息与第一目标小区的覆盖 信息不同的第二目标小区。
参阅图10B所示，本发明实施例提供一种基站，该基站包括处理器1000、接收器1001和发射器1002，其中：
处理器1000，用于确定至少两个目标小区，至少两个目标小区中存在基站覆盖范围之外的小区；
接收器1001用于，获取处理器1000确定的至少两个目标小区分别对应的覆盖信息；
发射器1002，用于广播接收器1001获取的至少两个目标小区分别对应的覆盖信息。
需要说明的是，处理器1000还可以执行图10A中所示的处理模块101所执行的其他操作，接收器1001还可以执行图10A中所示的接收模块101所执行的其他操作，发射器1002还可以执行图10A中所示的发送模块102所执行的其他操作。
本发明实施例中，还提出一种通信系统，其特征在于，包括如图7A或者图7B所示的终端设备，及如图8A或者图8B的基站。
本发明实施例中，还提出另一种通信系统，其特征在于，包括如图9A或者图9B所示的终端设备，及如图10A或者图10B的基站。
本领域内的技术人员应明白，本发明的实施例可提供为方法、系统、或计算机程序产品。因此，本发明可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通 过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本发明的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例做出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。
显然，本领域的技术人员可以对本发明实施例进行各种改动和变型而不脱离本发明实施例的精神和范围。这样，倘若本发明实施例的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (34)

  1. 一种接入小区的方法，其特征在于，包括：
    终端设备获取各个小区的信号强度，并将获取的信号强度中的最大值作为第一最大信号强度；
    所述终端设备将具备所述第一最大信号强度的小区，作为第一目标小区；
    所述终端设备获取所述第一目标小区的第一覆盖信息；
    所述终端设备确定所述第一覆盖信息满足所述终端设备的当前覆盖需求时，驻留在所述第一目标小区。
  2. 如权利要求1所述的方法，其特征在于，所述方法还包括：
    所述终端设备确定所述第一覆盖信息不满足所述当前覆盖需求时，确定第二目标小区，并获取所述第二目标小区的第二覆盖信息；
    所述终端设备确定所述第二覆盖信息满足所述当前覆盖需求时，驻留在所述第二目标小区。
  3. 如权利要求2所述的方法，其特征在于，所述终端设备确定第二目标小区，包括：
    所述终端设备从第一剩余信号强度中选择出第二最大信号强度；
    所述终端设备将具备所述第二最大信号强度的小区，作为所述第二目标小区；
    其中，所述第一剩余信号强度为所述终端设备获取的信号强度中除去所述第一最大信号强度的剩余信号强度。
  4. 如权利要求2或3所述的方法，其特征在于，所述终端设备获取所述第二目标小区的第二覆盖信息，包括：
    所述终端设备在所述第一目标小区中获取所述第二覆盖信息；或者
    所述终端设备接入所述第二目标小区，在所述第二目标小区中获取所述第二覆盖信息。
  5. 如权利要求1-4任一项所述的方法，其特征在于，所述第一覆盖信息 和所述第二覆盖信息包括覆盖等级信息、编码调制方式、接收信噪比要求、接收信干噪比要求中的一种或者任意组合。
  6. 一种接入小区的方法，其特征在于，包括：
    基站确定第二目标小区，所述第二目标小区为处于所述基站的覆盖范围之外的小区；
    基站获取第二目标小区的第二覆盖信息，并广播所述第二覆盖信息。
  7. 如权利要求6所述的方法，其特征在于，所述基站确定所述第二目标小区之前，还包括：
    所述基站确定第一目标小区，所述第一目标小区处于所述基站的覆盖范围之内；
    所述基站获取所述第一目标小区的第一覆盖信息，并广播所述第一覆盖信息。
  8. 如权利要求7所述的方法，其特征在于，所述第一覆盖信息和所述第二覆盖信息包括覆盖等级信息、编码调制方式、接收信噪比要求、接收信干噪比要求中的一种或者任意组合。
  9. 一种接入小区的方法，其特征在于，包括：
    终端设备获取各个小区的信号强度；
    所述终端设备将获取的信号强度中大于或者等于信号强度门限值的信号强度分别对应的小区，作为至少一个目标小区；
    所述终端设备获取所述至少一个目标小区分别对应的覆盖信息；
    所述终端设备根据获取的所述至少一个目标小区分别对应的覆盖信息，选择相应的目标小区进行驻留。
  10. 如权利要求9所述的方法，其特征在于，所述终端设备获取所述至少一个目标小区分别对应的覆盖信息，包括：
    针对所述至少一个目标小区中的任意一目标小区，所述终端设备接入所述任意一目标小区获取所述任意一目标小区所对应的覆盖信息；或者
    所述终端设备在第一目标小区中获取所述至少一个目标小区分别对应的 覆盖信息，所述第一目标小区为所述至少一个目标小区中对应的信号强度为最大值的目标小区。
  11. 如权利要求9所述的方法，其特征在于，所述终端设备获取所述至少一个目标小区分别对应的覆盖信息，包括：
    所述终端设备确定第一目标小区，并获取所述第一目标小区的覆盖信息，所述第一目标小区为所述至少一个目标小区中对应的信号强度为最大值的目标小区；
    所述终端设备接收覆盖信息不同指示，所述覆盖信息不同指示用于指示第二目标小区，所述第二目标小区为所述至少一个目标小区中对应的覆盖信息与所述第一目标小区的覆盖信息不同的小区；
    所述终端设备根据所述覆盖信息不同指示，获取所述第二目标小区的覆盖信息。
  12. 如权利要求9-11任一项所述的方法，其特征在于，所述终端设备根据获取的所述至少一个目标小区分别对应的覆盖信息，选择相应的目标小区进行驻留，包括：
    所述终端设备根据获取的所述至少一个目标小区分别对应的覆盖信息，从所述至少一个目标小区中筛选出第三目标小区，并驻留在所述第三目标小区。
  13. 如权利要求12所述的方法，其特征在于，所述终端设备根据获取的所述至少一个目标小区分别对应的覆盖信息，从所述至少一个目标小区中筛选出第三目标小区，包括：
    所述终端设备从获取的所述至少一个目标小区分别对应的覆盖信息中，确定出覆盖信息满足覆盖需求的至少一个第四目标小区；
    针对所述至少一个第四目标小区中的任意一第四目标小区，分别执行：
    所述终端设备确定所述终端设备在所述任意一第四目标小区中的接收信号强度，及所述任意一第四目标小区中对应的要求小于所述接收信号强度的覆盖等级；从对应的要求小于所述接收覆盖等级的覆盖等级中筛选出最大覆 盖等级；
    所述终端设备确定针对每一个第四目标小区分别筛选出的最大覆盖等级中的最大值；
    所述终端设备将所述最大值所对应的第四目标小区作为所述第三目标小区。
  14. 如权利要求9-13任一项所述的方法，其特征在于，所述覆盖信息包括覆盖等级信息、编码调制方式、接收信噪比要求、接收信干噪比要求中的一种或者任意组合。
  15. 一种接入小区的方法，其特征在于，包括：
    基站确定至少两个目标小区，所述至少两个目标小区中存在所述基站覆盖范围之外的小区；
    所述基站获取所述至少两个目标小区分别对应的覆盖信息；
    所述基站广播所述至少两个目标小区分别对应的覆盖信息。
  16. 如权利要求15所述的方法，其特征在于，基站确定至少两个目标小区之后，还包括：
    所述基站从所述至少两个目标小区中确定第一目标小区，所述第一目标小区为所述至少两个目标小区中对应的信号强度为最大值的目标小区；
    所述基站向所述终端设备发送覆盖信息不同指示，所述覆盖信息不同指示用于指示所述至少两个目标小区中对应的覆盖信息与所述第一目标小区的覆盖信息不同的第二目标小区。
  17. 一种终端设备，其特征在于，包括：
    接收模块，用于获取各个小区的信号强度；
    处理模块，用于将所述接收模块获取的信号强度中的最大值作为第一最大信号强度；
    所述处理模块还用于，将具备所述处理模块得到的第一最大信号强度的小区，作为第一目标小区；
    所述接收模块还用于，获取所述处理模块确定的第一目标小区的第一覆 盖信息；
    所述处理模块还用于，确定所述接收模块获取的第一覆盖信息满足所述终端设备的当前覆盖需求；
    驻留模块，用于在所述处理模块确定所述第一覆盖信息满足所述终端设备的当前覆盖需求时，驻留在所述第一目标小区。
  18. 如权利要求17所述的终端设备，其特征在于，所述处理模块还用于，确定所述第一覆盖信息不满足所述当前覆盖需求时，确定第二目标小区；
    所述接收模块还用于，获取所述处理模块确定的第二目标小区的第二覆盖信息；
    所述处理模块还用于，确定所述接收模块获取的第二覆盖信息满足所述当前覆盖需求；
    所述驻留模块还用于，在所述处理模块确定所述第二覆盖信息满足所述当前覆盖需求时，驻留在所述第二目标小区。
  19. 如权利要求18所述的终端设备，其特征在于，所述处理模块确定第二目标小区时，具体为：
    从第一剩余信号强度中选择出第二最大信号强度；
    将具备所述第二最大信号强度的小区，作为所述第二目标小区；
    其中，所述第一剩余信号强度为所述终端设备获取的信号强度中除去所述第一最大信号强度的剩余信号强度。
  20. 如权利要求18或19所述的终端设备，其特征在于，所述接收模块获取所述处理模块确定的第二目标小区的第二覆盖信息时，具体为：
    在所述处理模块确定的第一目标小区中获取所述第二覆盖信息；或者
    接入所述处理模块确定的第二目标小区，在所述第二目标小区中获取所述第二覆盖信息。
  21. 如权利要求17-20任一项所述的终端设备，其特征在于，所述第一覆盖信息和所述第二覆盖信息包括覆盖等级信息、编码调制方式、接收信噪比要求、接收信干噪比要求中的一种或者任意组合。
  22. 一种基站，其特征在于，包括：
    处理模块，用于确定第二目标小区，所述第二目标小区为处于所述基站的覆盖范围之外的小区；
    接收模块，用于获取所述处理模块确定的第二目标小区的第二覆盖信息；
    发送模块，用于广播所述接收模块获取的第二覆盖信息。
  23. 如权利要求22所述的基站，其特征在于，所述处理模块还用于，确定第一目标小区，所述第一目标小区处于所述基站的覆盖范围之内；
    所述接收模块还用于，获取所述第一目标小区的第一覆盖信息；
    所述发送模块还用于，广播所述接收模块获取的第一覆盖信息。
  24. 如权利要求23所述的基站，其特征在于，所述第一覆盖信息和所述第二覆盖信息包括覆盖等级信息、编码调制方式、接收信噪比要求、接收信干噪比要求中的一种或者任意组合。
  25. 一种终端设备，其特征在于，包括：
    接收模块，用于获取各个小区的信号强度；
    处理模块，用于将所述接收模块获取的信号强度中大于或者等于信号强度门限值的信号强度分别对应的小区，作为至少一个目标小区；
    所述接收模块还用于，获取所述处理模块确定的至少一个目标小区分别对应的覆盖信息；
    所述处理模块还用于，根据所述接收模块获取的所述至少一个目标小区分别对应的覆盖信息，选择相应的目标小区进行驻留。
  26. 如权利要求25所述的终端设备，其特征在于，所述接收模块获取所述处理模块确定的至少一个目标小区分别对应的覆盖信息时，具体为：
    针对所述至少一个目标小区中的任意一目标小区，接入所述任意一目标小区获取所述任意一目标小区所对应的覆盖信息；或者
    在所述处理模块确定的第一目标小区中获取所述至少一个目标小区分别对应的覆盖信息，所述第一目标小区为所述至少一个目标小区中对应的信号强度为最大值的目标小区。
  27. 如权利要求25所述的终端设备，其特征在于，所述处理模块还用于，确定第一目标小区，所述第一目标小区为所述至少一个目标小区中对应的信号强度为最大值的目标小区；
    所述接收模块获取所述处理模块确定的至少一个目标小区分别对应的覆盖信息时，具体为：
    获取所述处理模块确定的第一目标小区的覆盖信息，；
    接收覆盖信息不同指示，所述覆盖信息不同指示用于指示第二目标小区，所述第二目标小区为所述至少一个目标小区中对应的覆盖信息与所述第一目标小区的覆盖信息不同的小区；
    根据所述覆盖信息不同指示，获取所述第二目标小区的覆盖信息。
  28. 如权利要求25-27任一项所述的终端设备，其特征在于，所述处理模块根据所述接收模块获取的所述至少一个目标小区分别对应的覆盖信息，选择相应的目标小区进行驻留时，具体为：
    根据所述接收模块获取的所述至少一个目标小区分别对应的覆盖信息，从所述处理模块确定的至少一个目标小区中筛选出第三目标小区，并驻留在所述第三目标小区。
  29. 如权利要求28所述的终端设备，其特征在于，所述处理模块根据所述接收模块获取的所述至少一个目标小区分别对应的覆盖信息，从所述处理模块确定的至少一个目标小区中筛选出第三目标小区时，具体为：
    从所述接收模块获取的所述至少一个目标小区分别对应的覆盖信息中，确定出覆盖信息满足覆盖需求的至少一个第四目标小区；
    针对所述至少一个第四目标小区中的任意一第四目标小区，分别执行：
    确定所述终端设备在所述任意一第四目标小区中的接收信号强度，及所述任意一第四目标小区中对应的要求小于所述接收信号强度的覆盖等级；从对应的要求小于所述接收覆盖等级的覆盖等级中筛选出最大覆盖等级；
    确定针对每一个第四目标小区分别筛选出的最大覆盖等级中的最大值；
    将所述最大值所对应的第四目标小区作为所述第三目标小区。
  30. 如权利要求25-29任一项所述的终端设备，其特征在于，所述覆盖信息包括覆盖等级信息、编码调制方式、接收信噪比要求、接收信干噪比要求中的一种或者任意组合。
  31. 一种基站，其特征在于，包括：
    处理模块，用于确定至少两个目标小区，所述至少两个目标小区中存在所述基站覆盖范围之外的小区；
    接收模块用于，获取所述处理模块确定的至少两个目标小区分别对应的覆盖信息；
    发送模块，用于广播所述接收模块获取的至少两个目标小区分别对应的覆盖信息。
  32. 如权利要求31所述的基站，其特征在于，所述处理模块还用于，从所述处理模块确定的至少两个目标小区中确定第一目标小区，所述第一目标小区为所述至少两个目标小区中对应的信号强度为最大值的目标小区；
    所述发送模块还用于，向所述终端设备发送覆盖信息不同指示，所述覆盖信息不同指示用于指示所述至少两个目标小区中对应的覆盖信息与所述第一目标小区的覆盖信息不同的第二目标小区。
  33. 一种通信系统，其特征在于，包括如权利要求17-21任一项所述的终端设备，及如权利要求22-24任一项所述的基站。
  34. 一种通信系统，其特征在于，包括如权利要求25-30任一项所述的终端设备，及如权利要求31或者32所述的基站。
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