CN103796234A - Control method of terminal channel quality measurement - Google Patents
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- CN103796234A CN103796234A CN201210423138.3A CN201210423138A CN103796234A CN 103796234 A CN103796234 A CN 103796234A CN 201210423138 A CN201210423138 A CN 201210423138A CN 103796234 A CN103796234 A CN 103796234A
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Abstract
The application discloses and provides a control method of terminal channel quality measurement. According to the method, and in allusion to a low mobility characteristic of machine-to-machine (M2M), an M2M terminal is controlled to measure the channel quality of a district in a manner of prolonging a cycle, so that the M2M terminal does not need to measure the channel quality frequently. By the present invention, the power consumption of the channel quality measurement of the M2M terminal can be reduced, thereby optimizing the channel quality measurement of the M2M terminal.
Description
Technical field
The present invention relates to mobile communication technology, particularly a kind of control method of terminal channel mass measurement.
Background technology
Internet of Things be one based on information carriers such as the Internet, conventional telecommunications nets, allow and allly can be realized the network interconnecting by the General Physics object of independent addressing.As the most generally application of Internet of Things present stage, machine and machine (Machine-to-Machine, M2M) communication have obtained the extensive concern of every profession and trade, the focus of the research of Ye Shige great standardization body and the standard of formulation.ETSI is from typical internet of things service use-case, as the correlative study of intelligent medical, ecommerce, automation city, intelligent meter data recording and intelligent grid etc. is started with, analyze the demand of internet of things service, defined system structure design and relational data model, interface and the process of holder networking service.3GPP/3GPP2 is take wireless communication technology as working centre, and primary study 3G, LTE network provide for internet of things service and need the network optimization correlation technique of implementing, and research contents relates to the fields such as business demand, the optimization of wireless access network/core net, safety.CCSA has also completed the research report of M2M business as far back as 2009, and has carried out the research work relevant to M2M.
A typical M2M system architecture as shown in Figure 1, mainly comprises M2M terminal, M2M gateway, wireless access network equipment (eNB), equipment of the core network (comprising Mobility Management Entity MME, gateway SGW, PDN Gateway PGW and home subscriber server HSS), M2M server and M2M user.M2M terminal is made up of sensor assembly and communication module conventionally, the data of collection can be delivered to M2M server in the mode of network request or transmission automatically via communication network.M2M gateway can merge various wireless communication protocol (such as WiFi, BlueTooth, Zigbee etc.), plays the effect that protocol conversion and data relay forward.M2M terminal and M2M gateway are connected to eNB by Uu interface, and eNB is connected to core net by S1 interface.HSS has stored M2M user's subscription data.M2M server is connected with communication network by A interface, for M2M user provides various M2M business.M2M user is connected with M2M server by B interface, the application service that uses M2M server to provide.
M2M terminal has many characteristics that are different from traditional Human To Human (Human to Human, H2H) communication terminal.3GPP has defined 13 kinds of M2M characteristics altogether: Hypomobility, business and time correlation,, small data quantity insensitive to time delay transmission, initiated once in a while by terminal originating service, network that business, monitor terminal state, alarm information prioritised transmission, safety are connected, ad-hoc location triggering business, non-frequent transmission and management and group characteristic.A M2M terminal is supported complete or collected works or the subset of above characteristic.
Wherein, Hypomobility characteristic has proposed to be different from the mobile management demand of traditional H2H terminal to having the M2M terminal of this class feature.If adopt the mobility management mechanism identical with existing H2H terminal, not only can improve the implementation complexity of M2M terminal, also can cause M2M terminal power consumption too large.For example, in existing standard, channel quality measurement mechanism is to design for traditional H2H communication, considers that the behavior of H2H terminal and motion track are difficult to prediction, in order to guarantee can better to be served by access network at any time, H2H terminal needs the operation of mobile management frequently.Particularly, when H2H terminal is in idle condition time, need to carry out channel measurement frequently, resident to channel quality Hao community all the time to guarantee.When H2H terminal is in connection status time, H2H terminal need to be measured the channel quality of Serving cell and adjacent cell continually, to guarantee that accessing the best community of channel quality obtains best service.And for M2M terminal, the Hypomobility characteristic that it has makes this Terminal Type not need to carry out continually channel quality measurement, because channel quality measurement can increase the power consumption of M2M terminal frequently, this is extremely important concerning the M2M terminal of power consumption sensitivity.
As can be seen here, the signal channel quality measuring method of existing H2H terminal can increase implementation complexity, the increase power overhead of M2M terminal, is not suitable for M2M terminal, and especially power consumption is than more sensitive M2M terminal.A kind of signal channel quality measuring method that can overcome the problems referred to above is not yet proposed at present.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of control method of terminal channel mass measurement, and the method can reduce the power overhead of M2M terminal channel mass measurement, realizes the optimization of the channel quality measurement to M2M terminal.
In order to achieve the above object, the technical scheme that the present invention proposes is:
A control method for terminal channel mass measurement, comprising:
Machine and machine communication M2M terminal know self to have after Hypomobility according to the notice of network side, carry out the measurement of cell channel quality according to prolonging macrocyclic mode;
Wherein, described measurement comprises:
When described M2M terminal is during in idle condition, according to the maximum measurement period T M1 in default Serving cell, channel quality measurement is carried out in Serving cell, described TM1 is the product of K and TH1, described K is default period 1 elongation factor, K>1, the Human To Human that described TH1 is system communicates by letter the maximum measuring period of Serving cell of H2H terminal; According to the maximum measurement period T M2 in the first default co-frequency neighbor cell, channel quality measurement is carried out in co-frequency neighbor cell, described TM2 is the product of L and TH2, described L is default elongation factor second round, L>1, the maximum measuring period of co-frequency neighbor cell of the idle condition H2H terminal that described TH2 is system; In the time that needs carry out alien frequencies Inter-frequency adjacent cell and different wireless access technology Inter-RAT cell measurement, according to the maximum sense cycle TM3 in the first default iso-frequency adjacent community, carry out iso-frequency adjacent community and different wireless access technology cell detection, described TM3 is the product of P and TH3, described P is default period 3 elongation factor, P>1, the maximum sense cycle in iso-frequency adjacent community/different wireless access technology community of the idle condition H2H terminal that described TH3 is system; When detecting behind iso-frequency adjacent community or different wireless access technology community, according to the maximum measurement period T M4 in the first default iso-frequency adjacent community, carry out the channel quality measurement of iso-frequency adjacent community and different wireless access technology community, described TM4 is the product of Q and TH4, described Q is default period 4 elongation factor, Q>1, the maximum measuring period of iso-frequency adjacent community/different wireless access technology community of the idle condition H2H terminal that described TH4 is system;
When described M2M terminal is during in connection status, according to the maximum measurement period T M5 in the second default co-frequency neighbor cell, channel quality measurement is carried out in co-frequency neighbor cell, described TM5 is the product of V and TH5, described V is default period 5 elongation factor, V > 1, the maximum measuring period of Serving cell of the connection status H2H terminal that described TH5 is system; According to the maximum measurement period T M6 in the second default iso-frequency adjacent community, channel quality measurement is carried out in iso-frequency adjacent community, described TM6 is the product of W and TH6, described W is default period 6 elongation factor, W>1, the maximum measuring period of iso-frequency adjacent community of the connection status H2H terminal that described TH6 is system.
In sum, the control method of the terminal channel mass measurement that the present invention proposes, by the channel quality measurement cycle is control effectively, make M2M terminal not need to carry out continually channel quality measurement, thereby can reduce the power overhead of M2M terminal channel mass measurement, realize the optimization of the channel quality measurement to M2M terminal.
Accompanying drawing explanation
Fig. 1 is current M2M system architecture schematic diagram.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment, the present invention is described in further detail.
Core concept of the present invention is: for the low mobility of M2M terminal, carry out cycle of channel quality measurement by extending terminal, reduce terminal and carry out the expense of channel quality measurement.
The embodiment of the present invention one mainly comprises:
Machine and machine communication M2M terminal know self to have after Hypomobility according to the notice of network side, carry out the measurement of cell channel quality according to prolonging macrocyclic mode.
Preferably, network side can adopt following two kinds of methods to notify the terminal to M2M by the Hypomobility characteristic of M2M terminal:
Method one, core net obtain after the characteristic information of described M2M terminal according to the CAMEL-Subscription-Information of described M2M terminal, utilize non access stratum NAS message that described characteristic information is sent to described M2M terminal, and described characteristic information comprises Hypomobility characteristic information.
Preferably, described NAS message can be specially to adhere to and accept that message or TAU accept message or be newly-increased NAS message.
Method two, core net obtain according to the CAMEL-Subscription-Information of described M2M terminal after the characteristic information of described M2M terminal, utilize S1 interface message that described characteristic information is sent to eNB, described eNB utilizes Uu interface message that described characteristic information is sent to described M2M terminal, and described characteristic information comprises Hypomobility characteristic information.
Preferably, described S1 interface message can be specially initial context and set up request message or updating context request message, or a newly-increased S1 interface message, described Uu interface message can be specially radio resource control RRC reconfiguration message, or a newly-increased RRC message.
Further, the characteristic information that network side can also dynamically be preserved M2M terminal according to the variation of terminal characteristic information upgrades, and specifically can adopt following method to realize this purpose:
Method one, in the time that network side need to upgrade the characteristic information of described M2M terminal, core net utilizes NAS message that the lastest imformation of described characteristic information is sent to described M2M terminal, and described M2M terminal is upgraded the characteristic information of current preservation according to described lastest imformation.
Method two, in the time that network side need to upgrade the characteristic information of described M2M terminal, core net utilizes S1 interface message that the lastest imformation of described characteristic information is sent to eNB, and described eNB utilizes Uu interface message that the lastest imformation of described characteristic information is sent to described M2M terminal.
In said method for the measurement of cell channel quality, specifically can be according to the residing different conditions of M2M terminal, adopt following method to realize:
When described M2M terminal is during in idle condition, according to the maximum measurement period T M1 in default Serving cell, channel quality measurement is carried out in Serving cell, described TM1 is the product of K and TH1, described K is default period 1 elongation factor, K>1, the Human To Human that described TH1 is system communicates by letter the maximum measuring period of Serving cell of H2H terminal; According to the maximum measurement period T M2 in the first default co-frequency neighbor cell, channel quality measurement is carried out in co-frequency neighbor cell, described TM2 is the product of L and TH2, described L is default elongation factor second round, L>1, the maximum measuring period of co-frequency neighbor cell of the idle condition H2H terminal that described TH2 is system; In the time that needs carry out alien frequencies neighbour (Inter-frequency) community and different wireless access technology (Inter-RAT) cell measurement, according to the maximum sense cycle TM3 in the first default iso-frequency adjacent community, carry out iso-frequency adjacent community and different wireless access technology cell detection, described TM3 is the product of P and TH3, described P is default period 3 elongation factor, P>1, the maximum sense cycle in iso-frequency adjacent community/different wireless access technology community of the idle condition H2H terminal that described TH3 is system; When detecting behind iso-frequency adjacent community or different wireless access technology community, according to the maximum measurement period T M4 in the first default iso-frequency adjacent community, carry out the channel quality measurement of iso-frequency adjacent community and different wireless access technology community, described TM4 is the product of Q and TH4, described Q is default period 4 elongation factor, Q>1, the maximum measuring period of iso-frequency adjacent community/different wireless access technology community of the idle condition H2H terminal that described TH4 is system.
When described M2M terminal is during in connection status, according to the maximum measurement period T M5 in the second default co-frequency neighbor cell, channel quality measurement is carried out in co-frequency neighbor cell, described TM5 is the product of V and TH5, described V is default period 5 elongation factor, V>1, the maximum measuring period of Serving cell of the connection status H2H terminal that described TH5 is system; According to the maximum measurement period T M6 in the second default iso-frequency adjacent community, channel quality measurement is carried out in iso-frequency adjacent community, described TM6 is the product of W and TH6, described W is default period 6 elongation factor, W>1, the maximum measuring period of iso-frequency adjacent community of the connection status H2H terminal that described TH6 is system.
Here it should be noted that: in existing system, the mobile management under idle condition comprises community selection and cell reselection.After M2M starting up of terminal, carry out community select operation, by community selects resident to a suitable community with obtain serve.M2M terminal is by periodically measuring the channel quality of Serving cell and other same frequency (Intra-frequency), alien frequencies (Inter-frequency) and different wireless access technology (Inter-RAT) community, resident to the better community of channel quality, this process is cell reselection.
Concerning having the M2M terminal of Hypomobility characteristic, the channel measurement defining in existing standard is too frequent.Because M2M terminal mobility is lower, the variation of channel large scale decline can be very not large at short notice, so without carrying out channel measurement very frequently.
In prior art, to being determined by two parameters the maximum measuring period of Serving cell, first parameter is the cell defaultPagingCycle comprising in system message SIB2, second parameter is the parameter DRX_Cycle that M2M terminal upper strata generates, so to being the maximum measuring period of Serving cell: TH1=min{defaultPagingCycle, DRX_Cycle}, gets two minimum values in parameter that is.In existing standard, the span of defaultPagingCycle be 0.32s, 0.64s, 1.28s, 2.56s}, that is to say, to the maximum measuring period of Serving cell be 2.56 seconds, this seems that concerning M2M terminal expense is too large.In said method, be one of definition be greater than 1 take advantage of sex factor K, M2M terminal multiplies each other with K and TH1, makes M2M terminal to being increased to TM1=K*TH1 by TH1 the maximum measuring period of Serving cell.In addition, can define new parameter d efaultPagingCycle_1 and DRX_Cycle_1, span is different from defaultPagingCycle and DRX_Cycle, makes the TM1 that utilizes defaultPagingCycle and DRX_Cycle to obtain meet TM1=K*TH1.In the present invention, by making TM1=K*TH1, can reduce the call signaling expense of network, because network only needs more large period ground paging M2M terminal.
In prior art, to the maximum measurement period T H2 of Intra-frequency community, span is that { expense is too large concerning Hypomobility M2M terminal for 1.28s, 2.56s}.The present invention will increase the maximum measuring period to Intra-frequency community, define one be greater than 1 take advantage of sex factor L, M2M terminal multiplies each other with L and TH2, makes M2M terminal to being increased to L*TH2 by TH2 the measuring period of Serving cell.
In prior art, when the Serving cell channel power Srxlev receiving is greater than the first threshold value SnonIntraSearchP, and when the Serving cell channel quality Squal receiving is greater than the second threshold value SnonIntraSearchQ, M2M terminal has the Inter-frequency/Inter-RAT community of higher priority every TH3 time detecting.To the community detecting, carry out one-shot measurement every the TH4 time.Increase sense cycle and measuring period, can define be respectively greater than 1 take advantage of sex factor P and Q, make M2M terminal be increased to TM3=M*TH3 to the Inter-frequency/Inter-RAT cell detection cycle of higher priority by TH3, make M2M terminal be increased to TM4=N*TH4 to the Inter-frequency/Inter-RAT cell measurement cycle of higher priority by TH4.
In prior art, in the situation that not configuring discontinuous reception (DRX), the terminal in connection status is 200ms to the measuring period of Intra-frequency community.The in the situation that of configuration DRX, in the time that DRX cycle is less than or equal to 0.04s, the terminal in connection status is 200ms to the measuring period of Intra-frequency community; In the time that DRX cycle is greater than 0.04s and is less than or equal to 2.56s, the terminal in connection status is to being 5 DRX cycles the measuring period of Intra-frequency community.In said method by define one be greater than 1 take advantage of sex factor V, make M2M terminal to expanding original V the measuring period of Intra-frequency community to doubly.
In existing system, the terminal under connection status need to complete the measurement of Inter-frequency community in measurement interval (Measurement Gap).In measurement interval, terminal is interrupted the transfer of data with Serving cell.Measuring interval is that network side configures to UE, exists at present two kinds to measure arranged spaced.It is to measure 6ms every 80ms that the first is measured arranged spaced, and it is to measure 6ms every 40ms that the second is measured arranged spaced.When having configured behind measurement interval, terminal can periodically be measured Inter-frequency community.To measure in order saving the power consuming, for the M2M terminal with Hypomobility characteristic, can to increase measuring period.Can define one be greater than 1 take advantage of sex factor W, make M2M terminal to expanding original W the measuring period of Inter-frequency community to doubly.
Preferably, described K, L, P and Q can be configured to described M2M terminal by attaching process or by broadcast by network side in advance.Described V and W can be configured to described M2M terminal by RRC reconfiguration message by network side in advance.
Further, in order to save the power consumption of channel measurement, the M2M terminal channel quality measurement mechanism of can stopping using in suitable, and there being data to be about to open again in transmission.Particularly, can adopt following method to realize this purpose: when M2M terminal is during in idle condition, if the Hypomobility of described M2M terminal belongs to not mobile type, this M2M terminal completes after community selection and first cell reselection in start, stop carrying out the measurement of described cell channel quality, until while having data to arrive described M2M terminal; When M2M terminal is during in connection status, if the Hypomobility of described M2M terminal belongs to not mobile type, this M2M terminal, with after current service cell is set up RRC and is connected, stops carrying out the measurement of described cell channel quality, until while having data to arrive described M2M terminal.
Further, above-mentionedly can combine with the periodic channel measurement of routine (being the channel measuring method that in system, H2H terminal adopts) according to the method for prolonging macrocyclic mode and carry out the measurement of cell channel quality, to improve the flexibility to M2M terminal mobility management.Specifically can adopt following method to realize this purpose:
At M2M accessing terminal to network, and before completing a cell channel mass measurement according to the channel quality measurement mode of the H2H terminal of system, M2M terminal knows that according to the described notice of network side self has Hypomobility;
When M2M accessing terminal to network, and complete after the measurement of a cell channel quality according to the channel quality measurement mode of the H2H terminal of system, in the time T of specifying, carry out cell channel quality according to the channel quality measurement mode of H2H terminal, if the persistent district of described M2M terminal or Serving cell never change within the described T time, described in starting, carry out the measurement of cell channel quality according to prolonging macrocyclic mode.
Here, described T can set suitable value according to actual needs by those skilled in the art.
It should be noted that in addition: the discussion according to current 3GPP to M2M business demand, Hypomobility can be divided into again three kinds: (1) is frequent and only in very little scope, move; (2) frequently do not move, but moving range is larger; (3) do not move.For terminal frequent, that only move in very little scope.Consider according to prolonging macrocyclic mode and carry out cell channel mass measurement, may reduce the validity that some belong to the channel quality measurement of the terminal of the low mobile type of first two, further, those skilled in the art can be according to actual needs, in said method, only for belonging to the not M2M terminal of mobile type, described in just carrying out, carry out the measurement of cell channel quality according to prolonging macrocyclic mode.
In sum, these are only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (12)
1. a control method for terminal channel mass measurement, is characterized in that, comprising:
Machine and machine M2M terminal know self to have after Hypomobility according to the notice of network side, carry out the measurement of cell channel quality according to prolonging macrocyclic mode;
Wherein, described measurement comprises:
When described M2M terminal is during in idle condition, according to the maximum measurement period T M1 in default Serving cell, channel quality measurement is carried out in Serving cell, described TM1 is the product of K and TH1, described K is default period 1 elongation factor, K>1, the Human To Human that described TH1 is system communicates by letter the maximum measuring period of Serving cell of H2H terminal; According to the maximum measurement period T M2 in the first default co-frequency neighbor cell, channel quality measurement is carried out in co-frequency neighbor cell, described TM2 is the product of L and TH2, described L is default elongation factor second round, L>1, the maximum measuring period of co-frequency neighbor cell of the idle condition H2H terminal that described TH2 is system; In the time that needs carry out alien frequencies Inter-frequency adjacent cell and different wireless access technology Inter-RAT cell measurement, according to the maximum sense cycle TM3 in the first default iso-frequency adjacent community, carry out iso-frequency adjacent community and different wireless access technology cell detection, described TM3 is the product of P and TH3, described P is default period 3 elongation factor, P>1, the maximum sense cycle in iso-frequency adjacent community/different wireless access technology community of the idle condition H2H terminal that described TH3 is system; When detecting behind iso-frequency adjacent community or different wireless access technology community, according to the maximum measurement period T M4 in the first default iso-frequency adjacent community, carry out the channel quality measurement of iso-frequency adjacent community and different wireless access technology community, described TM4 is the product of Q and TH4, described Q is default period 4 elongation factor, Q>1, the maximum measuring period of iso-frequency adjacent community/different wireless access technology community of the idle condition H2H terminal that described TH4 is system;
When described M2M terminal is during in connection status, according to the maximum measurement period T M5 in the second default co-frequency neighbor cell, channel quality measurement is carried out in co-frequency neighbor cell, described TM5 is the product of V and TH5, described V is default period 5 elongation factor, V > 1, the maximum measuring period of Serving cell of the connection status H2H terminal that described TH5 is system; According to the maximum measurement period T M6 in the second default iso-frequency adjacent community, channel quality measurement is carried out in iso-frequency adjacent community, described TM6 is the product of W and TH6, described W is default period 6 elongation factor, W>1, the maximum measuring period of iso-frequency adjacent community of the connection status H2H terminal that described TH6 is system.
2. control method according to claim 1, is characterized in that, described notice comprises:
Core net obtains after the characteristic information of described M2M terminal according to the CAMEL-Subscription-Information of described M2M terminal, utilizes non access stratum NAS message that described characteristic information is sent to described M2M terminal, and described characteristic information comprises Hypomobility characteristic information.
3. control method according to claim 2, is characterized in that, described NAS message is accepted message or TAU accepts message for adhering to.
4. control method according to claim 1, is characterized in that, described notice comprises:
Core net obtains according to the CAMEL-Subscription-Information of described M2M terminal after the characteristic information of described M2M terminal, utilize S1 interface message that described characteristic information is sent to eNB, described eNB utilizes Uu interface message that described characteristic information is sent to described M2M terminal, and described characteristic information comprises non-moving property characteristic information.
5. control method according to claim 4, is characterized in that, described S1 interface message is that initial context is set up request message or updating context request message, and described Uu interface message is radio resource control RRC reconfiguration message.
6. control method according to claim 1, it is characterized in that, described method further comprises: in the time that network side need to upgrade the characteristic information of described M2M terminal, core net utilizes NAS message that the lastest imformation of described characteristic information is sent to described M2M terminal, and described M2M terminal is upgraded the characteristic information of current preservation according to described lastest imformation.
7. control method according to claim 1, it is characterized in that, described method further comprises: in the time that network side need to upgrade the characteristic information of described M2M terminal, core net utilizes S1 interface message that the lastest imformation of described characteristic information is sent to eNB, and described eNB utilizes Uu interface message that the lastest imformation of described characteristic information is sent to described M2M terminal.
8. control method according to claim 1, is characterized in that, described K, L, P and Q are configured to described M2M terminal by attaching process or by broadcast by network side in advance.
9. method according to claim 1, is characterized in that, described V and W are configured to described M2M terminal by RRC reconfiguration message by network side in advance.
10. control method according to claim 1, it is characterized in that, described method further comprises: when described M2M terminal is during in idle condition, if the Hypomobility of described M2M terminal belongs to not mobile type, this M2M terminal completes after community selection and first cell reselection in start, stop carrying out the measurement of described cell channel quality, until while having data to arrive described M2M terminal; When described M2M terminal is during in connection status, if the Hypomobility of described M2M terminal belongs to not mobile type, described M2M terminal, with after current service cell is set up RRC and is connected, stops carrying out the measurement of described cell channel quality, until while having data to arrive described M2M terminal.
11. control methods according to claim 1, is characterized in that, described method further comprises:
At described M2M accessing terminal to network, and before completing a cell channel mass measurement according to the channel quality measurement mode of the H2H terminal of system, described M2M terminal knows that according to the described notice of network side self has Hypomobility;
Complete after the measurement of a cell channel quality when described M2M accessing terminal to network and according to the channel quality measurement mode of the H2H terminal of system, in the time T of specifying, carry out cell channel quality according to the channel quality measurement mode of H2H terminal, if the persistent district of described M2M terminal or Serving cell never change within the described T time, described in starting, carry out the measurement of cell channel quality according to prolonging macrocyclic mode.
12. control methods according to claim 1, is characterized in that, described method further comprises: only have in the time that the Hypomobility of described M2M terminal belongs to not mobile type, described in just carrying out, carry out the measurement of cell channel quality according to prolonging macrocyclic mode.
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| CN111641963A (en) * | 2020-05-27 | 2020-09-08 | 广东小天才科技有限公司 | Cell measurement method and terminal equipment |
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| CN108464039A (en) * | 2016-01-11 | 2018-08-28 | 三星电子株式会社 | Method and apparatus for improving MPS process in wireless communication system |
| CN108464039B (en) * | 2016-01-11 | 2021-02-19 | 三星电子株式会社 | Method and apparatus for improving cell coverage in a wireless communication system |
| CN109429289A (en) * | 2017-08-24 | 2019-03-05 | 联发科技（新加坡）私人有限公司 | A kind of residence reselecting of internet of things equipment, internet of things equipment and storage device |
| CN111641963A (en) * | 2020-05-27 | 2020-09-08 | 广东小天才科技有限公司 | Cell measurement method and terminal equipment |
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