CN102300288A - System indicating method and device as well as network selecting method and device and communication system - Google Patents
System indicating method and device as well as network selecting method and device and communication system Download PDFInfo
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- CN102300288A CN102300288A CN2011102399366A CN201110239936A CN102300288A CN 102300288 A CN102300288 A CN 102300288A CN 2011102399366 A CN2011102399366 A CN 2011102399366A CN 201110239936 A CN201110239936 A CN 201110239936A CN 102300288 A CN102300288 A CN 102300288A
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Abstract
The invention discloses a system indicating method and a device as well as a network selecting method and a network selecting device and a communication system. The system indicating method comprises the steps that: a system message or an expense message is transmitted from a network side to a terminal; and the system message or the expense message carries an indicating message for indicating whether other wireless access system exists near the present system or not. Due to the adoption of the system indicating method, the problem that the power consumption is caused because of the additional system searching or unnecessary supervision of system neighboring region message in a multi-system overlapped coverage area can be solved.
Description
Technical field
The present invention relates to the communications field,, also comprise a kind of communication system in particular to a kind of system indicating means and device, a kind of network selecting method and device.
Background technology
In recent years, fast development along with the Internet, the main business growth point of operator carries out the transition to high-speed data service by traditional speech business, especially intelligent terminal popularizes, quickened the demand of wireless high-speed data business, the year ends 2008, the granting of taking pictures along with 3G, the internal radio communication system begins to enter the 3G epoch, but when telecom operators greatly develop the 3G business, some commercial regional customer volumes are too big, the network bandwidth of 3G is difficult to support demand data, and each big telecom operators is also actively disposing WiFi (Wireless Fidelity, Wireless Fidelity), make WiFi become to disperse the effective means of 3G flow, the exponential type that can fill up wireless bandwidth increases the gap between supplying with the linearity of available radio spectrum.When 3G technology is also tortuous in the world when advancing, terminal manufacturer and Virtual network operator take up to study the key technology of next generation mobile communication system again.Beginning in 2009, generally be accepted as LTE (the Long Time Evolution of next generation wireless communication mainstream technology, long evolving system) begins test or examination commercial movable, consider that real scale is commercial to be also had than the long lead-time from testing in the LTE system, industry and academic member generally believe that the next generation wireless communication system should be an open heterogeneous wireless network that the existing and following various wireless access systems that will occur organically can be merged.
Can infer, in the following a very long time, the hot zones in subregion, especially city will the situation of 2G, 3G, a plurality of wireless system coexistences such as WLAN (Wireless Local Area Network, WLAN (wireless local area network)), LTE occur comprising.In the time of in terminal is in the multisystem coexisting region, the interoperability of itself and network, as all can there be some particular requirements in the network selection of starting shooting, sub-district gravity treatment, speech business, data service etc., and the demand that when terminal is mobile between the part wireless communication system, also existence is interconnected.Usually terminal or for its SIM of terminal (Subscriber Identity Module of separation between machine and card, subscriber identification module)/CSIM (CDMA2000 Subscriber Identify Module, the CDMA2000 subscriber identification module)/RUIM (Removable User Identity Module, Removable User Identity Module) in the card, can store the data of carrier customization, for terminal provides certain network selection parameter, then terminal can be carried out autonomous network selecting fully, but the information that this parameter can provide is limited, make the efficient of this network selection and accuracy differ and meet consumers' demand surely, therefore be necessary to consider to introduce system's choice mechanism of network assistance.The part Radio Access Network can come accessory terminal to select between the different radio access network by the mode of other system neighboring BS information is provided at present.
Consider in the network development process that operator is not coupling to the deployment of multiple wireless access system and terminal to the tenability of multimode, there is certain defective in above-mentioned mechanism, and causing may influence terminal capabilities under some scene.At first, for the autonomous network selection of terminal is machine-processed, the multimode terminal of a high ability may have been stored the network selection parameter of supporting the 2G/3G/4G/WLAN multiple systems simultaneously, but one to two kind of wireless access technology may have only been disposed in its residing zone, if terminal is also wanted poll and is attempted inserting the all-network of its storage inside in this network, certainly will influence web search or efficiency of selection, and then cause the meaningless power consumption of terminal.Secondly, send the mechanism of other system neighboring BS information for existing network, network will send the other system neighboring BS information by the Overhead Message indication, will not send which kind of other system neighboring BS information but do not indicate, regardless of self-ability how terminal will be, always revive and waits for this other system neighboring BS information of reception at corresponding time slot according to this indication.If in fact terminal does not support other wireless access technologys of this area configurations, then above-mentioned mechanism can cause these terminals to receive the other system neighboring BS information meaninglessly, equally also can cause meaningless power consumption.
CDMA HRPD (Code Division Multiple Access High Speed Packet Data with 3G, code division multiple access access HRPD (high rate packet data)) system is an example, its corresponding normal structure 3GPP2 has defined MMSS (Multi-mode System Selection, multimode system is selected) mechanism, be used to provide multimode terminal independently under the multiple wireless access technology and the situation of depositing, to carry out the solution of network selecting, MMSS information based on the terminal stored, can support terminal at 3GPP (for example LTE), 3GPP2 (for example CDMA2000 lx or HRPD), independently select in WiMAX multiple wireless access technologys such as (Worldwide Interoperability for Microwave Access, micro-wave access global inter communications) and the network deposited.3GPP2 also provides the terminal network selection mechanism of network assistance simultaneously, the most basic, cdma network can be by the other system neighboring BS information of shared overhead channel message to the configuration of terminal transmitting system, comprised the wireless access system type in this message, near adjacent multiple other wireless access technologys being used to indicate, simultaneously, for each the wireless access system type that comprises, the details that also comprise this system are as frequency, precedence information etc.After terminal is received this other system neighboring BS information, can carry out other system more accurately and measure, and determine whether that according to control informations such as thresholding in the neighboring BS information or priority gravity treatment goes to the other system of adjacency.
Further, illustrate the problem that above-mentioned mechanism exists.In the zone that the main 3G of an employing CDMA technology covers, if some hot spot region has had WiFi or WiMAX to dispose, operator may postpone the deployment of LTE, if and these hot zones are not disposed WiFi as yet, operator might pay the utmost attention in the network development process and dispose LTE, so that current-dividing network is loaded or further promoted user experience.On the one hand, if cdma network does not send the other system neighboring BS information, terminal under the network can be carried out network selecting according to the MMSS information of self storing, if terminal inner has been stored multiple network information, all these network informations of terminal meeting poll, so that lock correct network, but in fact current region may have only CDMA+WiFi or CDMA+WiMAX or have only CDMA+LTE, and terminal is a kind of waste to the search of other system.On the other hand, if cdma network can send the other system neighboring BS information according to the actual deployment situation, terminal for different abilities under the network also might throw into question, for example, the terminal that can only support WiMAX and CDMA, in the time of in it is in the 3G+LTE overlay area, the system of can receiving indicates and removes to receive the other system neighboring BS information, after it receives this other system adjacent area message, just find not comprise in the message its needed WiMAX neighboring BS information, then the power consumption that caused of this terminal monitoring other system adjacent area message obviously is unnecessary.
Cause the problem of power consumption at terminal in the correlation technique in the overlapping covered system's adjacent area message of carrying out extra systematic search or need monitoring self unnecessary monitoring of multisystem, do not propose effective solution at present as yet.
Summary of the invention
Main purpose of the present invention is to provide a kind of system indicating means and device, a kind of network selecting method and device and a kind of communication system, to solve above-mentioned terminal causes power consumption in the overlapping covered system's adjacent area message of carrying out extra systematic search or the unnecessary monitoring of needs monitoring self of multisystem problem at least.
According to an aspect of the present invention, provide a kind of system indicating means, comprising: network side is to terminal transmitting system message or Overhead Message; Wherein, carry in described system message or the described Overhead Message and be used to indicate near the indication information that whether has other wireless access systems the current system.
Preferably, described Overhead Message comprises: article one Overhead Message that described current system uses.
Preferably, when described current system inserted 2000 HRPD (high rate packet data) 3G CDMA2000HRPD systems for third generation code division multiple access, described Overhead Message was to dispose QuickConfig message fast.
Preferably, the type of described indication information comprise following one of at least: the field that is provided with separately, other wireless access systems that each described field is corresponding different; Bit map, other the corresponding different wireless access systems of different bits in the described bitmap.
Preferably, described indication information also is used to indicate described current system will send the partly or entirely relevant information of described other wireless access systems, and wherein, described relevant information comprises configuration information and/or information on load.
Preferably, described other wireless access systems that the field of described independent setting is corresponding different comprise: when described field length is 1 bit, when described field value is 0, represent not have other wireless access systems of described field correspondence; When described field value is 1, represent to exist other wireless access systems of described field correspondence, and/or the follow-up relevant information that will send other wireless access systems of described field correspondence.
Preferably, described other wireless access systems that the field of described independent setting is corresponding different comprise: when described field length is 2 bits, when described field value is 0, represent not have other wireless access systems of described field correspondence; When described field value is 1, represent to exist other wireless access systems of described field correspondence, and have first kind of relevant information of other wireless access systems that will send described field correspondence; When described field value is 2, represent to exist other wireless access systems of described field correspondence, and have second kind of relevant information of other wireless access systems that will send described field correspondence; When described field value is 3, represent to exist other wireless access systems of described field correspondence, and have described first kind of relevant information and described second kind of relevant information of other wireless access systems that will send described field correspondence.
Preferably, network side also comprises after terminal transmitting system message or Overhead Message: terminal receives described system message or described Overhead Message, and carries out the network selecting operation according to the ability of described indication information and described terminal self.
According to another aspect of the present invention, a kind of network selecting method also is provided, comprise: terminal receives system message or the Overhead Message that network side sends, wherein, carry in described system message or the described Overhead Message and be used to indicate near the indication information that whether has other wireless access systems the current system; Described terminal is carried out the network selecting operation according to the ability of described indication information and described terminal self.
According to another aspect of the present invention, a kind of system indicating device also is provided, be arranged at network side, comprise: generation module, be used for generation system message or Overhead Message, wherein, carry in described system message or the described Overhead Message and be used to indicate near the indication information that whether has other wireless access systems the current system; Sending module is used for sending described system message or described Overhead Message to terminal.
According to another aspect of the present invention, a kind of network selection apparatus also is provided, be arranged at end side, comprise: receiver module, be used to receive system message or the Overhead Message that network side sends, wherein, carry in described system message or the described Overhead Message and be used to indicate near the indication information that whether has other wireless access systems the current system; Select module, be used for carrying out the network selecting operation according to the ability of described indication information and described terminal self.
According to another aspect of the present invention, also provide a kind of communication system, comprised above-mentioned system's indicating device and above-mentioned network selection apparatus.
In embodiments of the present invention, network side has carried indication information in system message that terminal sends or Overhead Message, whether this indication information exists other wireless access systems near can indicating current system, around terminal can clearly be known in follow-up access procedure which wireless access system is arranged, and then the wireless access system of selecting to insert according to the system that self can insert and wireless access system on every side inserts, do not need all-network is carried out poll and attempts access, and then improved web search or efficiency of selection, avoid the meaningless power consumption of terminal.Further, terminal is under the situation of not supporting certain wireless access system, yet need not revive and waits for this system's neighboring BS information of reception, avoid occurring terminal and receive the other system neighboring BS information meaninglessly, equally can cause the situation of meaningless power consumption yet at corresponding time slot.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the process chart according to system's indicating means of the embodiment of the invention;
Fig. 2 is the process chart according to the network selecting method of the embodiment of the invention;
Fig. 3 is the network architecture schematic diagram according to the embodiment two of the embodiment of the invention;
Fig. 4 is the structural representation according to system's indicating device of the embodiment of the invention;
Fig. 5 is the structural representation according to the network selection apparatus of the embodiment of the invention;
Fig. 6 is the structural representation according to the communication system of the embodiment of the invention.
Embodiment
Hereinafter will describe the present invention with reference to the accompanying drawings and in conjunction with the embodiments in detail.Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
Mention in the correlation technique, consider in the network development process, operator is not coupling to the deployment of multiple wireless access system and terminal to the tenability of multimode, and there is certain defective in the treatment mechanism of mentioning in the correlation technique, and causing may influence terminal capabilities under some scene.At first, for the autonomous network selection of terminal is machine-processed, the multimode terminal of a high ability may have been stored the network selection parameter of supporting the 2G/3G/4G/WLAN multiple systems simultaneously, but one to two kind of wireless access technology may have only been disposed in its residing zone, if terminal is also wanted poll and is attempted inserting the all-network of its storage inside in this network, certainly will influence web search or efficiency of selection, and then cause the meaningless power consumption of terminal.Secondly, send the mechanism of other system neighboring BS information for existing network, network will send the other system neighboring BS information by the Overhead Message indication, will not send which kind of other system neighboring BS information but do not indicate, regardless of self-ability how terminal will be, always revive and waits for this other system neighboring BS information of reception at corresponding time slot according to this indication.If in fact terminal does not support other wireless access technologys of this area configurations, then the treatment mechanism of mentioning in the correlation technique can cause these terminals to receive the other system neighboring BS information meaninglessly, equally also can cause meaningless power consumption.
For solving the problems of the technologies described above, the embodiment of the invention provides a kind of system indicating means, and its handling process comprises as shown in Figure 1:
Step S102, network side generation system message or Overhead Message;
Wherein, carry in system message or the Overhead Message and be used to indicate near the indication information that whether has other wireless access systems the current system;
Step S104, network side are to terminal transmitting system message or Overhead Message.
In embodiments of the present invention, network side has carried indication information in system message that terminal sends or Overhead Message, whether this indication information exists other wireless access systems near can indicating current system, around terminal can clearly be known in follow-up access procedure which wireless access system is arranged, and then the wireless access system of selecting to insert according to the system that self can insert and wireless access system on every side inserts, do not need all-network is carried out poll and attempts access, and then improved web search or efficiency of selection, avoid the meaningless power consumption of terminal.Further, terminal is under the situation of not supporting certain wireless access system, yet need not revive and waits for this system's neighboring BS information of reception, avoid occurring terminal and receive the other system neighboring BS information meaninglessly, equally can cause the situation of meaningless power consumption yet at corresponding time slot.
The kind of system message and Overhead Message has a lot, can carry indication information mentioned above and get final product, and is preferred, and Overhead Message can comprise article one Overhead Message that current system uses.For example, when being 3G CDMA2000HRPD system as if current system, Overhead Message can be selected QuickConfig message.
In system message or Overhead Message, can utilize different signs or field or other indication class signs as indication information, preferred, can select the independent field that is provided with as indication information, other wireless access systems that each field is corresponding different; Perhaps, select bit map, utilize other the corresponding different wireless access systems of different bits in the bitmap as indication information.
In a preferred embodiment, indication information also is used to indicate current system will send the partly or entirely relevant information of other wireless access systems, wherein, relevant information comprises configuration information, and/or information on load, and/or other information, the particular type of other information is decided according to actual conditions.
When adopting corresponding different other wireless access systems of the field that is provided with separately, the value of field is to be associated with the length of field, now is described with two concrete enforcements:
When field length is 1 bit,
When the field value is 0, represent not have other wireless access systems of field correspondence;
When the field value is 1, represent to exist other wireless access systems of field correspondence, and/or the follow-up relevant information that will send other wireless access systems of field correspondence.
When field length is 2 bits,
When the field value is 0, represent not have other wireless access systems of field correspondence;
When the field value is 1, represent to exist other wireless access systems of field correspondence, and have first kind of relevant information of other wireless access systems that will send the field correspondence;
When the field value is 2, represent to exist other wireless access systems of field correspondence, and have second kind of relevant information of other wireless access systems that will send the field correspondence;
When the field value is 3, represent to exist other wireless access systems of field correspondence, and have first kind of relevant information and second kind of relevant information of other wireless access systems that will send the field correspondence simultaneously.
It is configuration information that first kind of relevant information now is set, and second kind of relevant information is information on load, and corresponding field value and implication see also table one:
Table one
In the specific implementation, field length can also be taken as 3 bits, 4 bits until several thousand hundreds of bits or the like, selects field length as the case may be.
In a preferred embodiment, network side also comprises after terminal transmitting system message or Overhead Message: terminal receiving system message or Overhead Message, and carry out network selecting according to the ability of indication information and terminal self and operate.
Based on same inventive concept, the embodiment of the invention also provides a kind of network selecting method, and its handling process comprises as shown in Figure 2:
Step S202, terminal receive system message or the Overhead Message that network side sends;
Wherein, carry in system message or the Overhead Message and be used to indicate near the indication information that whether has other wireless access systems the current system;
Step S204, terminal are carried out the network selecting operation according to the ability of indication information and terminal self.
Can know that by foregoing in the embodiment of the invention, system is to terminal transmitting system message or Overhead Message, wherein, carry in the message and be used to indicate near the indication information whether other wireless access systems are arranged the current system.If follow-up current system no longer sends other system adjacent area relevant information, then terminal can be utilized this other wireless access system indication informations, the network selecting parameter of other wireless access systems couplings of only indicating in use and the information is carried out the network selecting operation, if follow-up current system also will send the relevant information of other wireless access systems of adjacency, then these other wireless access system indication informations are used to indicate current system will send the relevant information of which other wireless access system simultaneously.
The concrete processing method that provides below in conjunction with the description of drawings embodiment of the invention.
Embodiment one
Network side is provided with the indication information of other wireless access systems and brings terminal by Overhead Message, multimode terminal under the network, carry out the sub-district gravity treatment if use MMSS mechanism, can use indication information according to these other wireless access systems, at first filter the MMSS network parameter of terminal stored, only in current existing other wireless access systems, carry out network and reselect.
Embodiment two
Network side is provided with the indication information of other wireless access systems and brings terminal by Overhead Message, multimode terminal under the network, if which kind of other wireless access system will be the system of knowing will send, then according to oneself whether supporting this wireless access technology to determine whether the relevant information of the other system that the needs monitoring is follow-up, as neighbor cell configuration information.As shown in Figure 3, current network is the 3G CDMA2000HRPD network of evolution, only disposed the WiMAX system as the adjacent area, network will at first send the Overhead Message that has comprised WiMAX system indication information, and indicate the follow-up different system adjacent area message that also transmission has been comprised the WiMAX system parameters of adjacency, when the terminal of a support LTE and reinforced HRPD (eHRPD) enters this system, terminal is at first monitored Overhead Message discovery system and is not indicated the LTE system that adjacency is arranged, then terminal can not waken up and be monitored follow-up different system adjacent area message, helps terminal power saving.
Embodiment three
Network side is provided with the indication information of other wireless access systems and brings terminal by Overhead Message, multimode terminal under the network, if the system of knowing will send the information of which kind of other wireless access system, then according to oneself whether supporting this wireless access technology to determine whether the relevant information of the other system that the needs monitoring is follow-up, as neighboring cell load information.
Based on same inventive concept, the embodiment of the invention also provides a kind of system indicating device, is arranged at network side, and its structural representation comprises as shown in Figure 4:
Sending module 402 links to each other with generation module 401, is used for to terminal transmitting system message or Overhead Message.
Based on same inventive concept, the embodiment of the invention also provides a kind of network selection apparatus, is arranged at end side, and its structural representation comprises as shown in Figure 5:
Based on same inventive concept, the embodiment of the invention also provides a kind of communication system, referring to Fig. 6, comprise system's indicating device 601 and network selection apparatus 602, wherein, the concrete structure of system's indicating device 601 sees also Fig. 4, and the concrete structure of network selection apparatus 602 sees also Fig. 5.
As can be seen from the above description, the present invention has realized following technique effect:
In embodiments of the present invention, network side has carried indication information in system message that terminal sends or Overhead Message, whether this indication information exists other wireless access systems near can indicating current system, around terminal can clearly be known in follow-up access procedure which wireless access system is arranged, and then the wireless access system of selecting to insert according to the system that self can insert and wireless access system on every side inserts, do not need all-network is carried out poll and attempts access, and then improved web search or efficiency of selection, avoid the meaningless power consumption of terminal.Further, terminal is under the situation of not supporting certain wireless access system, yet need not revive and waits for this system's neighboring BS information of reception, avoid occurring terminal and receive the other system neighboring BS information meaninglessly, equally can cause the situation of meaningless power consumption yet at corresponding time slot.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, and in some cases, can carry out step shown or that describe with the order that is different from herein, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. system's indicating means is characterized in that, comprising:
Network side is to terminal transmitting system message or Overhead Message;
Wherein, carry in described system message or the described Overhead Message and be used to indicate near the indication information that whether has other wireless access systems the current system.
2. method according to claim 1 is characterized in that, described Overhead Message comprises: article one Overhead Message that described current system uses.
3. method according to claim 2 is characterized in that, when described current system inserted 2000 HRPD (high rate packet data) 3G CDMA2000HRPD systems for third generation code division multiple access, described Overhead Message was to dispose QuickConfig message fast.
4. according to each described method of claim 1 to 3, it is characterized in that, the type of described indication information comprise following one of at least:
The independent field that is provided with, other wireless access systems that each described field is corresponding different;
Bit map, other the corresponding different wireless access systems of different bits in the described bitmap.
5. method according to claim 4, it is characterized in that, described indication information also is used to indicate described current system will send the partly or entirely relevant information of described other wireless access systems, and wherein, described relevant information comprises configuration information and/or information on load.
6. method according to claim 4 is characterized in that, described other wireless access systems that the field of described independent setting is corresponding different comprise:
When described field length is 1 bit,
When described field value is 0, represent not have other wireless access systems of described field correspondence;
When described field value is 1, represent to exist other wireless access systems of described field correspondence, and/or the follow-up relevant information that will send other wireless access systems of described field correspondence.
7. method according to claim 4 is characterized in that, described other wireless access systems that the field of described independent setting is corresponding different comprise:
When described field length is 2 bits,
When described field value is 0, represent not have other wireless access systems of described field correspondence;
When described field value is 1, represent to exist other wireless access systems of described field correspondence, and have first kind of relevant information of other wireless access systems that will send described field correspondence;
When described field value is 2, represent to exist other wireless access systems of described field correspondence, and have second kind of relevant information of other wireless access systems that will send described field correspondence;
When described field value is 3, represent to exist other wireless access systems of described field correspondence, and have described first kind of relevant information and described second kind of relevant information of other wireless access systems that will send described field correspondence.
8. method according to claim 1 is characterized in that, network side also comprises after terminal transmitting system message or Overhead Message:
Terminal receives described system message or described Overhead Message, and carries out the network selecting operation according to the ability of described indication information and described terminal self.
9. a network selecting method is characterized in that, comprising:
Terminal receives system message or the Overhead Message that network side sends, and wherein, carries in described system message or the described Overhead Message and is used to indicate near the indication information that whether has other wireless access systems the current system;
Described terminal is carried out the network selecting operation according to the ability of described indication information and described terminal self.
10. system's indicating device is characterized in that, is arranged at network side, comprising:
Generation module is used for generation system message or Overhead Message, wherein, carries in described system message or the described Overhead Message and is used to indicate near the indication information that whether has other wireless access systems the current system;
Sending module is used for sending described system message or described Overhead Message to terminal.
11. a network selection apparatus is characterized in that, is arranged at end side, comprising:
Receiver module is used to receive system message or Overhead Message that network side sends, wherein, carries in described system message or the described Overhead Message and is used to indicate near the indication information that whether has other wireless access systems the current system;
Select module, be used for carrying out the network selecting operation according to the ability of described indication information and described terminal self.
12. a communication system is characterized in that, comprises claim 10 described system indicating device and the described network selection apparatus of claim 11.
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| WO2014177003A1 (en) * | 2013-08-08 | 2014-11-06 | 中兴通讯股份有限公司 | Measurement configuration processing method and device |
| CN105122896A (en) * | 2013-05-06 | 2015-12-02 | 英特尔Ip公司 | Access network discovery and selection |
| CN107769867A (en) * | 2016-08-15 | 2018-03-06 | 中兴通讯股份有限公司 | A kind of physical quantity indicating means, device, system and physical quantity instruction equipment |
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