CN104936314A - Selection of radio access technology mode based on current conditions - Google Patents

Abstract

The invention relates to selection of radio access technology mode based on current conditions. The operation displayed in a single radio access technology (RAT) mode or a dual RAT mode is determined for user equipment (UE) of a radio device using at least a first RAT and a second RAT for communication. The UE can determine whether the current path loss of the first RAT exceeds the maximum path loss. Based on the results of determining whether the current path loss for the first RAT exceeds the maximum path loss, the UE can determine whether the operation is displayed in the single-RAT-mode or dual-RAT mode. Therefore, based on the determination, the UE can determine the single-RAT-mode or dual-RAT mode based on the determination.

Description

Wireless access technology pattern is selected based on conditions present

Technical field

The application relates to wireless communication field, and more specifically, relates to the system and method selecting wireless access technology (RAT) pattern based on conditions present.

Background technology

The use rapid development of wireless communication system.And wireless communication technology develops into the transmission also comprising data (such as internet and content of multimedia) from pure voice communication.Along with the development of wireless communication system, continuous multi-generation wireless communication technology will be developed.Adopt new generation of wireless technology may be a progressive process, during this period, the similar techniques of one or more former generation can with the technology co-existence a period of time newly produced, such as, until new generation of wireless technology is disposed completely.

In addition, many different wireless communication technologys and standard is had.The example of some wireless communication standards comprises GSM, UMTS, LTE, CDMA2000 (such as, 1 × RTT, 1 × EV-DO), IEEE 802.11 (WLAN or Wi-Fi), IEEE 802.16 (WiMAX), bluetooth etc.Wherein some standard can play complementary effect, and other may be regarded as the competitor of the similar demand attempting to meet consumer usually.

In order to provide the continuity between each generation wireless communication technology, in order to provide complementary function, and/or for other reasons, may usually need to provide to device to use multiple wireless technology or standard to carry out the ability communicated.In some cases, this can be realized by the independent functional block being provided for each wireless communication technology or standard in a device.But, owing to needing more (and copying in some cases) assembly, this may cause device-dependent overhead, and the poor efficiency of equipment operating may be caused (such as, due to cause adverse effect each other radio device between interference, so need higher power for multiple wireless device).This also adversely may affect the profile of equipment, if particularly this equipment is the mobile device that possible need less (such as, thinner, lighter) profile.

Interchangeable, the equipment using individual feature block (such as, single radio device) to realize multiple wireless communication technology can be comprised.But sharing single radio device between multiple wireless technology is the difficulty that has himself.Such as, if once only there is a wireless technology to use radio device, then uses between the wireless technology of radio device and may (or frequent) clash once in a while.Therefore, may need to improve radio communication and the equipment carrying out radio communication.

Summary of the invention

As mentioned above, compare the equipment using functional block (radio device such as separated) separately to realize different wireless communication technologys, the equipment using individual feature block (such as, single radio device) to realize multiple wireless communication technology can have significant advantage.Such equipment may have lower manufacturing cost (such as, due to less required component and/or better simply overall structure) and more effective operation (such as, due to the lower power demand for single radio device).In addition, such single radio apparatus design easily can realize (e.g., thinner, lighter) profile (form factor) more expected of equipment itself.But, in order to provide the single radio effectively realizing multiple wireless technology device, complicated control algolithm may must be had.

As an example, in some cases, equipment can realize independent protocol stack to each wireless access technology in multiple wireless access technologys (RAT) of shared radio device.Protocol stack can this radio device of operated in turn.If dispatch two protocol stacks to use this radio device simultaneously, may exist between rats and conflict or conflict.

Equipment can be configured to according to various factors with single RAT pattern operation or with many or two RAT pattern operation.Such as, equipment can be configured to such as use single radio device to use a RAT (such as, packet-switch technology, such as Long Term Evolution (LTE)) and/or the 2nd RAT is (such as, circuit-switched technology, such as global system for mobile communications (GSM) and/or 1x technology) communicate.In certain embodiments, due to battery consumption or other factors, equipment can preferably with single RAT pattern (such as corresponding to a RAT) operation.

But, if present network conditions is not enough to support call to a RAT, or present network conditions shows that the calling of use the one RAT may go wrong in the future, then this equipment can be switched to from the operation of single RAT pattern with two RAT pattern operation, thus the failover (fail-over) that can realize from a RAT to the 2nd RAT and do not have obvious quality problems concerning user.In addition, when with two RAT pattern operation, if present network conditions shows the enough support calls of a RAT, then equipment can be switched to from two RAT pattern operation with single RAT pattern operation.

Content of the present invention is provided to be to sum up some exemplary embodiments, to provide the basic comprehension of each side to said theme.Therefore, above-mentioned feature is only example, and should not be interpreted as the scope or the essence that reduce theme as described herein by any way.According to embodiment below, accompanying drawing and claim, the further feature of theme described here, aspect and advantage will become obvious.

Accompanying drawing explanation

In conjunction with accompanying drawing below, consider the detailed description below to preferred embodiment, the present invention may be better understood, wherein:

Fig. 1 shows example wireless communications;

Fig. 2 shows the base station of carrying out with user equipment (ue) device communicating;

Fig. 3 shows and carries out via base station and network the user equipment (ue) device that communicates;

Fig. 4 shows the block diagram of user equipment (ue) device;

Fig. 5 shows the block diagram of base station; And

Fig. 6 A-11 shows the flow chart for the illustrative methods switched between single RAT pattern and two RAT pattern based on various factors.

Although feature described here allows various amendment and alternative form, by being that the mode of example illustrates and describes its specific embodiment in detail at this with accompanying drawing.But should be appreciated that, accompanying drawing and detailed description are not intended to limit disclosed particular form, but on the contrary, be intended to cover fall into the theme that claims limit essence and scope in all modifications, equivalent way and replaceable mode.

Embodiment

Abbreviation

Employ following abbreviation in the disclosure.

3GPP: third generation partner program

3GPP2: third generation partner program 2

GSM: global system for mobile communications

UMTS: Universal Mobile Telecommunications System

LTE: Long Term Evolution

Term

Here is the nomenclature used in this application:

Any memory devices in storage medium---various types of memory devices or memory device or memory device.Term " storage medium " is intended to comprise installation medium, such as CD-ROM, floppy disk or tape unit; Computer system memory or random access memory, such as DRAM, DDR RAM, SRAM, EDO RAM, Rambus RAM etc.; Nonvolatile memory, such as flash memory, magnetizing mediums (such as, hard disk drive) or optical storage; Register, or the memory component etc. of other similar type.Storage medium also can comprise memory or its combination of other types.In addition, storage medium can be arranged in the first computer system of wherein executive program, or can be arranged in the different second computer system being connected to first computer system by network (such as internet).In the latter case, second computer system can provide program command to perform to the first computer.Term " storage medium " can comprise two or more storage mediums, and two or more storage mediums described can be positioned at different positions, such as, be arranged in the different computer system connected by network.Storage medium can store the program command (such as, being embodied as computer program) performed by one or more processor.

Mounting medium---above-mentioned storage medium, and physical transmission medium, such as other physical transmission medium of bus, network and/or transmission signal (such as electricity, electromagnetism or digital signal).

Programmable hardware element---comprise the various hardware devices containing the multiple programmable function blocks connected via programmable interconnect.Example comprises FPGA (field programmable gate array), PLD (programmable logic device), FPOA (Field Programmable Object array) and CPLD (complex programmable logic equipment).The scope of programmable function blocks can from fine granularity (combinational logic or look-up table) to coarseness (ALU or processor cores).Programmable hardware element also can be called as " reconfigurable logic ".

Any calculating in computer system---various types of calculating or treatment system or treatment system, comprise the combination of personal computer system (PC), large computer system, work station, the network equipment, internet equipment, personal digital assistant (PDA), personal communication devices, smart mobile phone, television system, computing system or other equipment or equipment.In general, term " computer system " can be broadly defined as any equipment (or combination of equipment) comprising and have and perform from least one processor of the instruction of storage medium.

Subscriber equipment (UE) (or " UE equipment ")---any computer system device in various types of computer system device, described computer system device is mobile or portable and can performs radio communication.The example of UE equipment comprises mobile phone or smart mobile phone (as based on iPhone, Android _tMmobile phone), portable game device (such as, NintendoDS ^tM, PlayStation Portable ^tM, Gameboy Advance ^tM, iPhone ^tM), notebook computer, PDA, portable equipment for surfing the net, music player, data storage device or other portable equipments etc.Usually, term " UE " or " UE equipment " can be broadly defined as to comprise and easily transported by user and can carry out any electronics of radio communication, calculating and/or telecommunication apparatus (or combination of equipment).

Base station---term " base station " has the four corner of its its ordinary meaning, and at least comprises and be arranged on fixing position and as the part of radio telephone system or radio system for carrying out the wireless communications station communicated.

Processing unit---refer to the combination of various element or element.Treatment element comprises, such as circuit (such as ASIC (application-specific integrated circuit (ASIC))), the part of independent processor cores, whole processor cores, independent processor, programmable hardware device (such as field programmable gate array (FPGA)) or circuit, and/or the greater part comprising multiple processor of system.

Automatically---refer to by computer system (such as, the software performed by computer system) or equipment is (such as, circuit, programmable hardware element, ASIC etc.) action that performs or operation, and input without the need to user and directly specify or perform this action or operation.Therefore, term " automatically " is the operation manually performing relative to user or specify, and wherein user provides input to carry out direct executable operations.The input that can be provided by user starts automation process, but user does not specify (that is, do not have " manually " to perform, wherein user specifies the execution of each action when manually performing) " automatically " action of performing subsequently.Such as, the input that each field of user by selecting and providing is specified information (such as, by keying in information, selecting check box, radio selection etc.) to fill in electrical form be manually fill up a form, even if computer system must upgrade form in response to user action.Can by computer system Auto-writing form, wherein computer system (software such as, performed on the computer systems) is analyzed the field of form and fills form and input the user of the answer of field without the need to any appointment.As mentioned above, user can call the automatic filling to form, but does not participate in the actual filling (such as, user does not manually specify the answer to field, and on the contrary, answer is done automatically) to form.Present description provides the various examples of the action taked in response to user and the operation automatically performed.

Fig. 1-3-communication system

Fig. 1 shows exemplary (with simplifying) wireless communication system.It should be noted that the system of Fig. 1 is only an example of possible system, embodiment can be performed with any system in various system as required.

As shown in the figure, example wireless communications comprises and carries out by transmission medium and one or more subscriber equipment 106A to 106N base station 102A and 102B that communicate.Each subscriber equipment here can be called " subscriber equipment (UE) ".Thus, subscriber equipment can be called UE or UE equipment.

Base station 102 can be base transceiver station (BTS) or cell site (cell site), and can comprise the hardware allowed with the radio communication of subscriber equipment 106A to 106N.Each base station 102 also can be equipped to carry out with core network 100 communicating that (base station 102A can be coupled to core network 100A, and base station 102B can be coupled to core network 100B), described core network 100 can be the core network of cellular service provider.Each core net 100 can also be coupled to one or more external network (such as external network 108), and it can comprise internet, public switch telephone network (PSTN) and/or other network any.Thus base station 102 can so that communicate with between network 100A, 100B and 108 between subscriber equipment 106 and/or at subscriber equipment 106.

Base station 102 and subscriber equipment 106 can be configured to use various wireless access technology (" RAT ", be also referred to as wireless communication technology) or telecommunication standard (such as GSM, UMTS (WCDMA), LTE, advanced LTE (LTE-A), 3GPP2CDMA2000 (e.g., 1xRTT, 1xEV-DO, HRPD, eHRPD), IEEE 802.11 (WLAN or Wi-Fi), IEEE 802.16 (WiMAX) etc.) in any wireless access technology or telecommunication standard communicated by transmission medium.

Base station 102A and core network 100A can according to a RAT (such as, LTE) operate, and base station 102B and core network 100B can operate according to second (such as, different) RAT (such as, can be wherein CDMA 2000 or GSM).Two networks can be controlled by consolidated network operator (such as, cellular service provider or " operator (carrier) ") as required, or can be controlled by different Network Provider.In addition, two networks (such as, if two networks operate according to different cellular standards) can be operated independently of one another, or can be coupled a little or closely-coupled mode operates two networks.

Be also noted that, shown in exemplary network configuration as illustrated in fig. 1, when the cellular telecommunication art that two different network supports two can be used different, other network configuration realizing multiple cellular telecommunication art are also possible.As an example, base station 102A and 102B can operate according to different cellular telecommunication art, but is coupled to same core network.As another example, different cellular telecommunication art can be supported (such as simultaneously, LTE and CDMA20001xRTT, LTE and GSM, and/or cellular communication technology any other combination) multi-mode base station can be coupled to the core network also supporting different cellular telecommunication art.In one embodiment, UE 106 can be configured to use the one RAT and the 2nd RAT, and a described RAT is packet-switch technology (such as, LTE), and described 2nd RAT is circuit-switched technology (such as, GSM or 1 × RTT).

UE 106 can use multiple wireless communication standard to communicate, such as 3GPP, 3GPP2 or any required standard.UE 106 can also or alternatively be configured to use WLAN, bluetooth, one or more GLONASS (Global Navigation Satellite System) (GNSS, as GPS or GLONASS), one and/or multiple mobile TV broadcast standard (such as, ATSC-M/H or DVB-H) etc. communicates.Other combinations of RAT or wireless communication standard (comprising the RAT more than two or wireless communication standard) are also possible.

Thus can provide according to base station 102A and 102B of same or different RAT or cellular standards operation as community (cell) network with other base stations, described subzone network can provide continuous print or subcontinuous Overlay Service by one or more cellular standards to the UE 106 on very wide geographic area and similar devices.

Fig. 2 shows the subscriber equipment 106 (equipment such as, in equipment 106A to 106N) carrying out with base station 102 communicating.UE 106 can be the equipment connected with wireless network, as the wireless device of mobile phone, handheld device, computer or panel computer or almost any type.

UE 106 can comprise the processor being configured to perform the program command stored in memory.UE 106 can perform any embodiment of the method described here by the instruction performing this storage.UE 106 or interchangeablely can also comprise the programmable hardware element being configured to any part performing any embodiment of the method described here or any embodiment of the method described here, such as FPGA (field programmable gate array).

As mentioned above, UE 106 can be configured to use any RAT in multiple RAT to communicate.Such as, UE 106 can be configured to use in GSM, CDMA2000, LTE, LTE-A, WLAN or GNSS two or more communicate.Other combinations of wireless communication standard are also possible.

UE 106 can comprise one or more antenna, communicates for the one or more wireless communication protocol of use.UE 106 can share one or more parts of reception between multiple wireless communication standard and/or chain; Such as, UE 106 can be configured to CDMA2000 (1xRTT/1xEV-DO/HRPD/eHRPD) or use the LTE of single shared radio device to communicate, and/or with GSM or use the LTE of single shared radio device to communicate.The radio device shared can comprise individual antenna, or can comprise the multiple antennas (such as, for MIMO) for performing radio communication.Interchangeable, UE106 can comprise the transmission separated and/or the receive chain (such as, comprising antenna separately and other multiple component units) that are configured to each wireless communication protocol communicated for it.As further may, UE 106 can be included in the one or more radio devices shared between multiple wireless communication protocol, and by one or more radio devices of single wireless communication protocol-specific.Such as, UE 106 can comprise the radio device shared that use LTE or 1xRTT (or LTE or GSM) is carried out communicating, and carries out with using Wi-Fi and each in bluetooth the radio device separated communicated.Other configurations are also possible.

Fig. 3 shows the exemplary reduced part to voice communication (such as the voice via LTE (VoLTE)) the in the lte networks useful especially wireless communication system performed via IP.As shown in the figure, UE 106 can comprise IP Multimedia System (IMS) client 306, such as, hardware and/or software can be used to realize IMS client in every way.Such as, in one embodiment, software and/or hardware can realize IMS storehouse, and described IMS storehouse can provide required IMS function, such as, comprise registration, support to carry out AKA certification, session establishment and resource reservation etc. with IPSec.

UE 106 can communicate with base station (eNodeB 102 as shown in this exemplary embodiment).And then eNodeB can be coupled to core network, the block core (EPC) 100 of the evolution as shown in this exemplary embodiment.As shown in the figure, EPC 100 can comprise Mobility Management Entity (MME) 322, home subscriber servers (HSS) 324, gateway (SGW) 326.EPC 100 can also comprise and well known to a person skilled in the art other equipment various.

EPC 100 can communicate with IMS 350.IMS 350 can comprise CSCF (CSCF) 352, and described CSCF itself can comprise proxy CSCF (P-CSCF), inquiry CSCF (I-CSCF) and serving CSCF (S-CSCF) as required.IMS 350 can also comprise Media Gateway Controller function (MGCF) 354 and IMS management gateway (IMS-MGW) 356.Similar with EPC 100, IMS 350 can also comprise other equipment various known in those skilled in the art.

Thus the system of Fig. 3 shows the sample portion of the data path for the voice communication (such as, VoLTE) via IP.

Fig. 4---exemplary UE block diagram

Fig. 4 shows the block diagram of UE 106.As shown in the figure, UE 106 can comprise SOC (system on a chip) (SOC) 400, and it can comprise the part for various object.Such as, as shown in the figure, SOC 400 can comprise processor 402 and display circuit 404, and described processor 402 can perform the program command for UE 106, and described display circuit 404 can perform graphics process and provide display to display 460.Processor 402 can also be coupled to Memory Management Unit (MMU) 440, described Memory Management Unit can be configured to from processor 402 receiver address and described address transition be become position in memory (such as, memory 406, read-only memory (ROM) 450, nand flash memory 410) and/or other circuit or equipment (such as display circuit 404, radio communication circuit 430 (also referred to as " radio device "), connector I/F 420 and/or display 460).MMU 440 can be configured to execute store protection and page table conversion or arrange.In certain embodiments, MMU 440 can be included as a part for processor 402.

Also as shown in the figure, SOC 400 can be coupled to each other circuit of UE 106.Such as, UE 106 can comprise various types of memory (such as, comprise nand flash memory 410), attachment unit interface 420 (such as, for being coupled to computer system, pedestal (dock), charging station etc.), display 460 and radio communication circuit 430 (such as, for LTE, CDMA 200, bluetooth, WiFi etc.).

As mentioned above, UE 106 can be configured to use multiple wireless communication technology to carry out radio communication.Also described above, in these examples, radio communication circuit (radio device) 430 can be included in multiple component units shared between multiple wireless communication technology and/or be configured to specially according to the multiple component units that single wireless communication technology uses.As shown in the figure, UE equipment 106 can comprise at least one antenna (and may comprise multiple antenna, such as MIMO and/or for realizing the different wireless communication technology in various possibility), perform radio communication for utilizing cellular basestation and/or other equipment.Such as, UE equipment 106 can use antenna 435 to perform radio communication.

As described herein, UE 106 can comprise and uses one or more wireless communication technology to carry out the hardware and software component of the feature communicated for realizing, all assemblies as described herein.The processor 402 of UE equipment 106 can be configured to realize feature partly or entirely described here by performing the program command be stored on storage medium (such as, non-transitory computer-readable storage media).Interchangeable (or other), processor 402 can be configured to programmable hardware element, such as FPGA (field programmable gate array) or ASIC (application-specific integrated circuit (ASIC)).Interchangeable (or other), the processor 402 of UE equipment 106 can be configured to realize part or all of feature described here in conjunction with other assemblies 400,404,406,410,420,430,435,440,450,460 one or more.

Fig. 5---base station

Fig. 5 shows the block diagram of base station 102.It should be noted that the base station of Fig. 5 is only the possible example of of base station.As shown in the figure, base station 102 can comprise processor 504, and described processor 504 can perform the program command of base station 102.Processor 504 can also be coupled to Memory Management Unit (MMU) 540, described Memory Management Unit 540 can be configured to from processor 504 receiver address and described address transition be become position in memory (such as, memory 560 and read-only memory (ROM) 550) or other circuit or equipment.

Base station 102 can comprise at least one network port 570.The network port 570 can be configured to be coupled to telephone network and provide the access to above-mentioned telephone network to multiple equipment (such as UE device 106).

The network port 570 (or other network port) can also or alternatively be configured to be coupled to cellular network, the core network of such as cellular service provider.Core network can provide to multiple equipment (as UE equipment 106) service and/or other services that mobility is relevant.In some cases, the network port 570 can be coupled to telephone network via core network, and/or core network can provide phone network (such as, between other UE equipment of being served by cellular service provider).

Base station 102 can comprise at least one antenna 534.At least one antenna 534 can be configured to be used as transceiver and operate, and can also be configured to communicate with UE equipment 106 via radio device 530.Antenna 534 communicates with radio device 530 via communication chain 532.Communication chain 532 for receive chain, transmission chain or receive chain and can send chain.Radio device 530 can be configured to communicate via various wireless communication technology (including but not limited to, LTE, GSM, WCDMA, CDMA 2000 etc.).

The processor 504 of base station 102 can be configured to such as realize part or all of method described here by the execution program command be stored on storage medium (such as, non-transitory computer-readable storage media).Interchangeable, processor 504 can be configured to programmable hardware element, such as FPGA (field programmable gate array), or ASIC (application-specific integrated circuit (ASIC)) or its combination.

Fig. 6 A and 6B---single RAT pattern

Fig. 6 A shows with the flow chart of method during single RAT pattern operation.Can realize the method by wireless UE device (such as UE 106), described wireless UE device can be configured to use multiple RAT to communicate.Method shown in Fig. 6 A can combine use with any system or equipment shown in above-mentioned figure and other equipment.In various embodiments, some in the element of method can perform simultaneously, perform to be different from shown order or can be omitted.Be also noted that, other method element can also be performed as required.Method can perform as follows.

As shown in the figure, in 602, method can single RAT pattern start.It can be packet-switch technology, such as LTE that single RAT pattern can correspond to a RAT, a RAT.As described below, method can enter two RAT pattern afterwards, and wherein two kinds of technology (RAT and the 2nd RAT) can use simultaneously.2nd RAT can be the technology of circuit-switched technology or a lower generation, such as 1 × or GSM technology.In one embodiment, can, such as by being periodically transferred to the 2nd RAT from a RAT thus using two RAT to keep connecting, come to use single radio device for two RAT simultaneously.Interchangeable, more than one radio device can be used implement two RAT as required.

In certain embodiments, method can comprise the one or more counter of use, can illustrate in greater detail below.Such as, can exist corresponding to the counter (being called as below " single RAT counter ") of single RAT pattern and/or the counter (being called as below " two RAT counter ") corresponding to two RAT pattern.In one embodiment, described counter initially can be set to value is 0.In addition, counter can be reset when new RRC connects is 0.But, the method can also be implemented when there is no counter as required.

In an illustrated embodiment, step described below can be performed under idle (idle) pattern.Therefore, in one exemplary embodiment, as shown in 604, method can only continue at the idling mode.But, it should be noted that there are other embodiments, wherein can not apply the method at one's leisure as required.

Continue from 604, in 606, such as predetermined can wake the period present network conditions that (wake-upperiod) measures a RAT up each, described in wake the period up can within each discontinuous reception (DRX) wake-up period (cycle).In one embodiment, as shown in the figure, method can determine the current path loss of a RAT, although other also can be used to measure.

Present network conditions can and the threshold value relevant with the tolerance being used for measuring present network conditions compare.Such as, when using path loss, current path loss can compare with the first path loss threshold.First path loss threshold can be set as such value: a RAT namely may be able to be used to maintain calling at this value place, if and/or path loss exceed threshold value, (or may) calling cannot be maintained.In one embodiment, path loss threshold can have buffering area, can not maintain calling before this buffering area.This result compared cause to be discussed below to 608 and 609 branch.Although it should be noted that the remainder of this specification uses path loss tolerance, the method can expand to the combination of other tolerance or tolerance arbitrarily as required.

Forward 608 to, if path loss is more than the first path loss threshold, then can increase progressively (increment) two RAT counter.It should be noted that can implementation path loss in every way and the comparing of threshold value.Such as, in one embodiment, path loss can directly compare with the first path loss threshold; But, in alternative embodiments, can expression be: maximum permission path Sun Shi – current path loss <=X? in this interchangeable expression, the value relevant to maximum permission path loss may be had, and can compare with threshold X from the result that current path loss deducts this value.But this expression is also easy to be converted into above-mentioned first path loss threshold.

In 610, method can determine whether two RAT counter exceedes two RAT threshold value.If no, then method can get back to 604.If two RAT counter has exceeded two RAT threshold value, then method can proceed to 612.

612, if two RAT counter has exceeded two RAT threshold value, then single RAT counter can be reset.

614, the network condition of the 2nd RAT can be determined.Similar above, tolerance required arbitrarily can be used to measure network condition.In one embodiment, the tolerance used in 612 can with 606 in the tolerance (such as, path loss) determined similar.Similar above, path loss as these in question Exemplary metrology, but will can predict other tolerance of use.

In 616, method can determine that the path loss of the 2nd RAT is whether than the path loss better (such as less) of a RAT.Or above-mentioned another kind of mode, based on the path loss measured, method can determine whether the 2nd RAT more may maintain calling than a RAT.If the 2nd RAT path loss is better than a RAT path loss (such as, than threshold quantity), then can be switched to two RAT pattern in 618 methods.But if the 2nd RAT path loss is good not as a RAT path loss, then method can get back to 604.

Forward 609 to, when current path loss is no more than the first path loss threshold (or be alternately expressed as: is maximum permission path damaged and is lost – current path loss >X?), single RAT counter can be increased progressively.

In 611, single RAT counter and single RAT threshold value compare by method.If single RAT counter does not exceed single RAT threshold value, then method can get back to 604.Interchangeable, in 613, exceed single RAT threshold value based on single RAT counter, two RAT counter can be reset, and method can get back to 604.

Thus, the both sides of flow chart are compared, if indicated by two RAT counter, path loss exceedes path loss threshold repeatedly, then can compare the quality of the 2nd RAT, and if the 2nd RAT have suitable quality, then pattern can be switched to two RAT pattern from single RAT pattern.Therefore, if network quality is lower than required threshold value or reducing, then such switching is contingent.On the other hand, if indicated by single RAT counter, path loss repeatedly lower than path loss threshold, then can reset two RAT counter.So, path loss repeatedly new for needs one group failure (failure) is caused and is switched to two RAT pattern from single RAT pattern.

It is noted that and can carry out requirement counter and represent the continuous print failure of comparing of path loss and path loss threshold or pass through by amending method.Such as, can use single RAT counter to represent that path loss compares repeatedly, continuous print failure.Therefore, in this embodiment, except non-test repeatedly continuously failure repeatedly (not being accumulate unsuccessfully repeatedly), otherwise pattern can not be switched to pair RAT pattern from single RAT pattern.Similar explanation also can be applied to two RAT counter.

Fig. 6 B shows with single RAT pattern operation and is applied to the flow chart with the method for the embodiment of above-mentioned similar exemplary continuous especially.Can pass through wireless UE device (such as UE 106) and implement the method, described wireless UE device can be configured to use multiple RAT to communicate.Method shown in Fig. 6 B can be combined with any system or equipment shown in above-mentioned figure and other equipment.In various embodiments, some in shown method element can perform simultaneously, perform or can be left in the basket with the order different with shown order.It is also noted that other method element can be performed as required.Method can perform as follows.

Step 652,654,656,658,660,664,666 and 668 can respectively with 602,604,606,608,610,614,616 and 618 to operate similarly, embodiment except Fig. 6 B can be applied to two RAT counter especially and must continuously exceed outside the embodiment of two RAT threshold value (and can get rid of other possibilities, such as accumulated value).In this embodiment, single RAT counter may be not necessarily for the process of Fig. 6 B.More particularly, because Fig. 6 B corresponds to continuous print embodiment, so do not need to maintain single RAT counter, and when path loss is less than threshold value, UE can remain single RAT pattern, and can reset two RAT counter simply, as shown in Figure 65 9.

Fig. 7 A and 7B---two RAT pattern

Fig. 7 A shows with the flow chart of the method for two RAT pattern operation.Can pass through wireless UE device (such as UE 106) and realize the method, described wireless UE device can be configured to use many RAT to communicate.Method shown in Fig. 7 A can combine use with any system or equipment described in above-mentioned figure and other equipment.Such as, Fig. 7 A can be regarded the continuation of Fig. 6 A after be switched to two RAT pattern from single RAT pattern.In addition or interchangeable, Fig. 6 A can regard the continuation of Fig. 7 A after being switched to single RAT pattern from two RAT pattern.In various embodiments, some in shown method element can perform simultaneously, perform to be different from shown order or to be omitted.Be also noted that, other method element can also be performed as required.Method can perform as follows.

As shown in the figure, at 702, method can two RAT pattern start, such as, use the RAT described in Fig. 6 and the 2nd RAT.In one embodiment, can, such as by being periodically transferred to the 2nd RAT from a RAT thus using two RAT to keep connecting, be that two RAT use single radio device simultaneously.Interchangeable, more than one radio device can be used implement two RAT as required.

With Fig. 6 category-A seemingly, method can comprise and uses one or more counter, such as, single RAT counter and two RAT counter.In one embodiment, it is 0 that described counter initially can be set to value, such as, when entering two RAT pattern.In addition, counter can be reset when new RRC connects is 0.But such as, owing to performing the method for Fig. 6 A, method can also keep previous Counter Value.In addition, if needed, the method can also be implemented when there is no counter.

In an illustrated embodiment, step described below can be performed at the idling mode.Therefore, in one exemplary embodiment, as shown in 704, only the method can be continued at the idling mode, such as, when UE is idle in a RAT and the 2nd RAT.But, should be appreciated that can there be other embodiments as required, wherein can not apply the method at one's leisure.

Continue from 704, in 706, such as, predetermined can wake the present network conditions that the period measures a RAT up each, described in wake the period up can within each discontinuous reception (DRX) wake-up period.In one embodiment, as shown in the figure, method can determine the current path loss of a RAT, although other also can be used to measure.

The present network conditions of the one RAT can and the threshold value relevant with the tolerance being used for measuring present network conditions compare.Such as, when using path loss, current path loss can compare with the second path loss threshold.Second path loss threshold can be set as such value: a RAT namely can be used to maintain calling at this value place, if and/or path loss exceed threshold value, (or may cannot) calling cannot be maintained.It is to be noted, however, that the second path loss threshold can be different from the first path loss threshold described in Fig. 6, such as, due to delayed (hysteresis).In interchangeable expression: maximum permission path loss-current path loss <=Y (or >Y)?, Y can be different with X used in Figure 5 above.But in certain embodiments, if needed, these two threshold values can be identical.This result compared cause to be discussed below to 708 and 709 branch.Although it should be noted that the remainder of this specification uses path loss tolerance, the method can expand to the combination of other tolerance or tolerance arbitrarily as required.

Forward 708 to, if path loss is more than the second maximum path loss threshold value, then can increase progressively two RAT counter.As mentioned above, it should be noted that can implementation path loss in every way and the comparing of threshold value.Such as, in one embodiment, path loss can directly lose threshold value compare with the second maximum path; But in alternative embodiments, expression can be: maximum permission path Sun Shi – current path loss <=Y?In this interchangeable expression, the value relevant to maximum permission path loss may be had, and the result and threshold value Y that deduct this value from current path loss are compared.But this expression is also easy to be converted into above-mentioned second maximum path loss threshold value.

In 710, method can determine whether two RAT counter exceedes two RAT threshold value.If no, then method can get back to 704.If two RAT counter exceedes two RAT threshold value really, then method can proceed to 712, and wherein 712, it is 0 that single RAT counter can be reset, and method can turn back to 704.It should be noted that as required, two RAT threshold value and single RAT threshold value can be similar and different with the threshold value described in Fig. 6 A.

Rotate back into 709, (or not alternatively to be expressed as: maximum permission path loss-current path loss >Y more than when the first maximum path loss threshold value in current path loss?), single RAT counter can be increased progressively.

711, single RAT counter and single RAT threshold value compare by method.If single RAT counter does not exceed single RAT threshold value, then method can get back to 704.Interchangeable, exceed single RAT threshold value based on single RAT counter, two RAT counter can be reset in 713, and pattern can be switched to single RAT pattern from two RAT pattern in 715.

Thus, the both sides of flow chart are compared, if indicated by single RAT counter, path loss is less than the second maximum path loss threshold value repeatedly, such as because path loss instruction the one RAT can maintain calling when not needing the 2nd RAT as when backup, then method can get back to single RAT pattern.On the other hand, if indicated by two RAT counter, path loss exceedes maximum path loss threshold value repeatedly, then can reset single RAT counter.Other method, if indicated by single RAT counter, path loss is repeatedly lower than maximum path loss threshold value, then pattern can be switched to single RAT pattern from two RAT pattern.Therefore, if network quality is higher than required threshold value or there is improvement, just there is such switching possibly.

Similar with the discussion about Fig. 6 A, it should be noted that method to be modified as needs counter represent the continuous failure of comparing of path loss and path loss threshold or pass through.Such as, single RAT counter can be used to represent path loss compares repeatedly, continuous print failure.Therefore, in such embodiments, pattern can not switch to two RAT pattern from single RAT pattern, unless test crash repeatedly, continuous several times, instead of accumulation is repeatedly.Similar saying also goes for two RAT counter.

With Fig. 6 category-B seemingly, Fig. 7 B shows with the flow chart of the method for two RAT pattern operation, and described pair of RAT pattern can be specially adapted to above-mentioned continuous print embodiment.Can pass through wireless UE device (such as UE 106) and implement the method, described wireless UE device can be configured to use multiple RAT to communicate.Method shown in Fig. 7 B and any system or equipment shown in above-mentioned figure and other equipment are combined.Such as, Fig. 7 B can regard that Fig. 6 B is being switched to the continuation after two RAT pattern from single RAT pattern as.In addition, or interchangeable, and Fig. 6 B can be regarded as the continuation of Fig. 7 B after being switched to single RAT pattern from two RAT pattern.In various embodiments, some in shown method element can perform simultaneously, perform or can be omitted with the order different with shown order.It is also noted that other method element can be performed as required.Method can perform as follows.

Step 752,754,756,759,761,763 and 765 can respectively with 702,704,706,709,711,713 and 715 to operate similarly, embodiment except Fig. 7 B can be applied to single RAT counter especially and must continuously exceed outside the embodiment of single RAT threshold value (and can get rid of other possibilities, such as accumulated value).In this embodiment, two RAT counter may be not necessarily for the process of Fig. 7 B.More particularly, because Fig. 7 B corresponds to continuous print embodiment, so do not need to maintain two RAT counter, and when path loss exceedes threshold value, UE can remain two RAT pattern, and can reset single RAT counter simply, as shown in Figure 75 8.

Exemplary operation

Provided below is use the example value of various threshold value and path loss, corresponding to the exemplary operation of the flow chart of Fig. 6 and 7.But described operation and value are only exemplary, and do not limit any current described embodiment.

In described operation, maximum path can be used to lose (MAPL)-path loss (PL) <=(or >) X and MAPL-PL<=(or >) Y and to carry out realizing route loss threshold value.The value of MAPL can be set to 100dB (although can be also other values, such as can consider 95 or 105dB).X can be 3 and Y can be 4.For the operation corresponding to Fig. 6, two RAT mode counter threshold value can be 5, and single RAT mode counter threshold value can be 1.For the operation corresponding to Fig. 7, single RAT mode counter threshold value can be 6, and two RAT mode counter threshold value can be 1.

According to an example, method initially can start from single RAT pattern, and wherein the value of two counters is set as 0, and wherein current path loss is 98.So 100-98=2, this is less than threshold value 3 (X).Therefore, two RAT counter can be incremented to 1 from 0.

In second time iteration, path loss is 90dB.So 100-90=10, this is greater than threshold value 3.Therefore, two RAT counter can reset to 0 from 1, because the counter threshold of single RAT counter is 1.For the same reason, single RAT counter also can be reset is 0.

In next iteration, path loss is 98.So 100-98=2, this is less than threshold value 3.Therefore, single RAT counter can be incremented to 1.

In next iteration, path loss is 99, and so, single RAT counter can be incremented to 2.This process can continue until counter increment is to 5, and is greater than the point of 3 without any MAPL-PL, and this produces comparing of the quality of a RAT and the 2nd RAT.When determining that the 2nd RAT has than a better quality of RAT, pattern can be switched to two RAT pattern from single RAT pattern.

When entering two RAT pattern, the value of two counters is configured to 0 again.When first time iteration, path loss is 95.So 100-95=5, this is greater than 4.Therefore, single RAT pattern is incremented to 1 from 0.

When second time iteration, path loss is 96.So 100-96=4, this equals threshold value Y.Therefore, because two RAT mode counter threshold value is 1 so single RAT mode counter is reset.In addition, because two RAT mode counter threshold value is 1, be then reset so two RAT mode counter is incremented to 1.

In next iteration, path loss is less than or equal to 95 continuous 6 times.So pattern can be switched to single RAT pattern from two RAT pattern.

Based on two RAT patterns of registration

Except embodiment recited above, UE can consider based on other, and (such as, for tradition (legacy) or the registration of circuit-switched network) enters two RAT pattern.Such as, following situation can be had: UE uses a RAT (such as, LTE) to communicate, but the incoming call paging that can not receive for calling out or network do not receive the response of UE to incoming call paging.In these cases, network can suppose that LTE communication has problem, and sends paging via the 2nd RAT (such as, circuit switching RAT).But in order to according to the 2nd RAT paging receiving, UE must keep it up-to-date to being registered as of the 2nd RAT.Therefore, based on registration rule, UE may need periodically to be switched to two RAT pattern from single RAT pattern, thus performs the registration of the 2nd RAT or re-register.

Fig. 8---based on two RAT patterns of registration

Fig. 8 shows with the flow chart of the method for single RAT pattern operation.Can pass through wireless UE device (such as UE 106) and realize the method, described wireless UE device can be configured to use multiple RAT to communicate.Method shown in Fig. 8 can combine use with any system or equipment shown in above-mentioned figure and other equipment.In various embodiments, some in shown method element can perform simultaneously, perform to be different from shown order, maybe can be omitted.Be also noted that, other method element can also be performed as required.Method can perform as follows.

Two RAT pattern initially can be entered at 802, UE.In two RAT pattern, UE can use a RAT (such as, LTE) to communicate with the first base station, and/or can to the 2nd RAT registered UE (such as, being communicated by the second base station relevant with the 2nd RAT).In certain embodiments, when can power up (power up) at UE, or when other are similar, perform 802.

In 804, UE can enter single RAT pattern, and only uses a RAT to communicate.

In 806, such as, when being in single RAT pattern, UE can determine whether should perform registration for the 2nd RAT.Such as, this determine can based on the various registration rule relevant to the 2nd RAT.Usually, registration rule can be classified as time-based registration rule or location-based registration rule.Such as, time-based registration rule can be that UE needs such as to register termly based on timer.Therefore, the determination in 806 can be determine simply from last time registration since time whether exceed threshold timer value, or timer for the 2nd RAT registration whether expire.

Location-based registration rule may relate to various factors, change of the change of such as base station, the change in region, tracing area etc.In order to determine whether that, to the 2nd RAT registration, UE can enter two RAT pattern in response to various triggering.As an example, when UE switches the base station of a RAT, UE can enter two RAT pattern and determine in location-based rule, whether regular needs are registered for the 2nd RAT.As another example, UE can via the change of GPS measuring position, and when have passed through threshold distance, UE can communicate according to the 2nd RAT, determine whether register with (such as, based on the location-based registration rule of the 2nd RAT).

In 808, based on the determination in 806, UE such as can register to the 2nd RAT under two RAT pattern.

After registration, in 810, UE can enter single RAT pattern again.

Based on two RAT patterns of power consumption

Except above-described embodiment, UE can consider based on other, and (power such as, in single RAT pattern such as when use the one RAT communicates uses) enters two RAT pattern.More specifically, the parameter of power consumption is affected during the base station (such as, the enodeB of LTE) of a RAT can be embodied in audio call.In certain embodiments, described parameter is specific to each base station.Therefore, if the parameter of base station causes the power consumption being greater than desirable level, then UE can enter two RAT pattern, thus according to the 2nd RAT of smaller power can be used to perform audio call.Such as, if can cause according to the power consumption of the audio call of a RAT more than the situation performing audio call according to the 2nd RAT according to the parameter of a RAT realization, then UE can enter two RAT pattern, thus uses the 2nd RAT to perform audio call.Can be performed this when each UE is connected to new base station to determine.

In certain embodiments, this power consumption can be represented as " air time ".Such as, if the UE air time of a RAT is fewer (namely than the UE air time of the 2nd RAT, if for audio call, use a RAT can obtain soon than use the 2nd RAT battery consumption), then UE can enter two RAT pattern thus use the 2nd RAT for audio call.

Fig. 9---based on two RAT patterns of power consumption

Fig. 9 shows with the flow chart of the method for single RAT pattern operation.Can pass through wireless UE device (such as UE 106) and realize the method, described wireless UE device can be configured to use multiple RAT to communicate.Method shown in Fig. 9 can combine use with any system or equipment shown in above-mentioned figure and other equipment.In various embodiments, some in shown method element can perform simultaneously, perform to be different from shown order, maybe can be omitted.Be also noted that, other method element can also be performed as required.Method can perform as follows.

In 902, UE can determine the parameter relevant to a RAT, such as, and first base station of the RAT that described parameter is currently connected to specific to UE.

In 904, UE can determine whether parameter indicates the power consumption when use the one RAT carries out voice communication to be greater than desirable level.Such as, UE can determine whether the power consumption that the parameter of the one RAT when use the one RAT performs voice communication causes can be higher than the power consumption when use the 2nd RAT performs voice communication.In one embodiment, the available talk time of use the one RAT (residue that such as, allows for battery voice communication hour or minute) can compare with using the available talk time of the 2nd RAT by UE.

Exemplary parameter can comprise CDRX parameter.Such as, CDRX parameter area below may be needed: the duration parameters level of 2-4 millisecond, the inactivity timer of 2-4 millisecond, the ReTx timer of 2, long DRX cycle of 40 etc.Other parameters can comprise grouping binding (packet bundling, such as, possible desired value is 2).If use dynamic dispatching, allowing every 40 milliseconds, to aim on the duration with CDRX may be preferred.In addition, if transmitting and scheduling request, it may be preferred that 40 millisecond period ground are aimed on the duration with C-DRX.If use semi-persistent scheduling, it may be preferred that semi-persistent scheduling interval UL (semiPersistenSchedIntervalUL) of sf40 and semi-persistent scheduling interval D L (semiPersistenSchedIntervalDL) aim on the duration with C-DRX.For HARQ, the maximum of " without TTI binding " may be needed to reach the transmission of 4 and the maximum of " band TTI binding " reached to the transmission of 12.For CQI, the cycle with 80 milliseconds may be needed to support " supporting regular CQI ", may need not support " supporting aperiodicity CQI " simultaneously.IMS is re-registered, the value of two hours may be needed.It should be noted that described parameter and parameter value are only exemplary, and do not limit embodiment described here.

As required, individual aspect or overall aspect can estimate parameter.Such as, each individual parameter can be compared with ideal range or value.If the described parameter value of or threshold number is beyond ideal range or value, then 904 determination can indicated horsepower consumption on desirable level.Interchangeable, the effect of one group of parameter can compare by UE, to determine power consumption whether on desirable level.

906, if parameter indicated horsepower consumes on desirable level, then UE can enter two RAT pattern, or more generally, the 2nd RAT can be used to replace a RAT and carry out voice communication.

The method of Fig. 9 can be performed when UE is connected to the new base station of a RAT at every turn, or more generally, the method for Fig. 9 can be performed to each base station of a RAT.

Figure 10 and 11---select RAT pattern based on database information

Figure 10 and 11 shows the flow chart of the illustrative methods selecting RAT pattern based on the data in the database relevant to the information of each community and/or network.Especially, UE can maintain to each LTE base station (although also can consider other entities, such as to each community, network, RAT etc.) database storing in the following one or more: LTE: community ID, TAC (tracing area code), PCI (physical district ID); CDMA:SID (system identifier), NID (network ID), region ID, BS ID, PN (pseudo noise) sequence, the calls according to LTE, the audio call according to LTE are successfully established percentage, terminate percentage etc. according to the normal speech call of LTE.

Although it should be noted that two RAT of Figure 10 and 11 are described and are shown as LTE and CDMA, also it is contemplated that other RAT, e.g. particularly LTE and GSM and non-LTE RAT combines.Thus, RATs LTE and CDMA is only exemplary, it is contemplated that other combinations of RAT.In figures 10 and 11, UE can initially operate, such as, for a RAT with single RAT pattern.

Figure 10 shows the flow chart of the method selecting RAT pattern based on database information.Can pass through wireless UE device (such as UE 106) and realize the method, described wireless UE device can be configured to use multiple RAT to communicate.Method shown in Figure 10 can combine use with any system or equipment shown in above-mentioned figure and other equipment.In various embodiments, some in shown method element can perform simultaneously, perform to be different from shown order, maybe can be omitted.Be also noted that, other method element can also be performed as required.Method can perform as follows.

In 1002, can such as power up UE based on user's input.

In 1004, UE can obtain the 2nd RAT, and such as relevant to the 2nd RAT base station, is shown as CDMA in this example.

In 1006, UE can obtain a RAT, and such as relevant to RAT base station, is shown as LTE in this example.

In 1008, UE can be upper idle at a RAT (such as, LTE), and a RAT can be designated as the preferred RAT of audio call.

In 1010, when equipment moves on to the different districts according to a RAT (such as, LTE), equipment can scan the 2nd RAT (such as, CDMA) to determine about juxtaposed (collocated) the 2nd details of RAT community.But the step below 1010 also can perform at other times, that is, also can performing except the other times during cell change of a RAT.

In 1012, UE can inquire about its database, such as, corresponding to the database of the current base station of a RAT.

In 1014, UE can determine whether database has enough sample sizes for the base station of a RAT.

If not, in 1016, the method can complete and hold fire.Such as, in this example, a RAT (such as, LTE) can still be used, such as, for the more data about current area of collection.

If, method can proceed to 1018, wherein equipment such as by determining current channel condition to determine whether the base station of a RAT is applicable to voice service, and/or can determine whether variable (variable such as found in a database) is enough used for using base station support according to the voice service of a RAT.Such as, the one or more variablees (or combination of variable) be stored in the database of being correlated with a current RAT community can be compared with threshold value, to determine whether a RAT base station can support voice service.As an example, audio call is successfully established percentage and can compares with threshold value and/or terminate percentage according to the audio call of a RAT and can compare with threshold value.If audio call is successfully established percentage and exceedes threshold value (as an example, in numerous possibility) according to the audio call one or both terminated in percentage of a RAT, so can think that a RAT is suitable for voice service.Other compare and it is contemplated that, the speech call quality of such as previous calls and speech call quality threshold value (such as, based on shake, this may be common for some LTE communities) are compared.

If a RAT base station is improper, in 1020, equipment can enter two RAT pattern (being shown as SRLTE in flow charts).

If a RAT base station is suitable, in 1022, can hold fire, such as, because incoming call (such as, the calling of mobile terminal) can use a RAT to carry out voice service.

In 1024, database can be filled to reflect any variable relevant with any calling (such as, mobile terminal calling) occurred.Such as, if call setup is successful, then the call setup percentage of the base station of a RAT can be updated.Similarly, if call setup is successful, database can be updated to reflect end of calling result.Also other tolerance of voice quality or calling can be upgraded.

Figure 11 shows the flow chart of the method for such as selecting RAT pattern during call setup based on database information.Can pass through wireless UE device (such as UE 106) and realize the method, described wireless UE device can be configured to use multiple RAT to communicate.Method shown in Figure 11 can combine use with any system or equipment described in above-mentioned figure and other equipment.In various embodiments, some in shown method element can perform simultaneously, perform to be different from shown order, maybe can be omitted.Be also noted that, other method element can also be performed as required.Method can perform as follows.

1102-1110 can be substantially identical with 1002-1010.

In 1112, user can initiate audio call.But, in alternative embodiments, as required, 1112 and Figure 11 generally also can correspond to mobile terminal calling.

1114, can Query Database, be similar to 1012 above.

In 1116, UE can determine whether database has enough sample sizes for the base station of a RAT.

If so, in 1118, UE can use any suitable standard to determine whether make a call according to a RAT (such as, LTE).

If 1116 or 1118 any one return the result of negative, then UE can use the 2nd RAT (such as, CDMA) to carry out audio call (such as, enter two RAT pattern and the 2nd RAT can be used to call out).

If the result that 1116 and 1118 all return affirmative, in 1122, the result of calling can be filled to database (such as, for the entry of the current base station of a RAT).Such as, be similar to 1024, as implied above, can based on the call setup result more new database of calling.In addition, if call setup success (such as, use a RAT), then can more new database (such as, for the entry of the current base station of a RAT) to reflect end of calling result.Also its dependent variable can be upgraded, such as voice quality, or any other tolerance that may be useful to database, such as, for determining whether that calling is in the future carried out in the base station of use the one RAT.

Above-described embodiment it should be noted that above-described embodiment may be particularly useful when network does not support single radio continuous voice call (SRVCC), although also can be suitable for when supporting.

Exemplary embodiment

The paragraph of lower column number describes the exemplary embodiment of present disclosure.

1, at least the first wireless access technology RAT can be used to carry out a method for the user equipment (UE) of the radio device communicated with the 2nd RAT for operating to have, the method comprises: when using a described RAT with single RAT pattern operation: determine that the current path of a described RAT loses by described UE and whether lose threshold value more than the first maximum path; Exceed described first maximum path loss threshold value based on described current path loss, determined to operate with two RAT pattern by described UE; And operated with two RAT pattern based on determining by described UE, be switched to from single RAT pattern operation with two RAT pattern operation.

2, the method according to section 1, also comprises: based on described current path loss more than the first maximum path loss threshold value, determine the path loss of described 2nd RAT; Wherein said switching is also based on the path loss of described 2nd RAT.

3, according to the method in section 1-2 described in arbitrary section, also comprise: based on described current path loss more than the first maximum path loss threshold value, count-up counter; Wherein said switching exceedes threshold value based on described counter.

4, according to the method for appointing in section 1-3 described in first paragraph, also comprise: the time afterwards, repeat to determine whether the current path loss of a described RAT exceedes described first maximum path loss threshold value; Do not exceed described first maximum path loss threshold value based on described current path loss, revise described counter.

5, the method according to section 4, the described counter of wherein said amendment comprise reset described counter, and the described counter of described amendment be in response to described current path loss do not exceed with there is no continuous threshold number described first maximum path loss threshold value perform.

6, according to the method in section 1-5 described in arbitrary section, also comprise: when with two RAT pattern operation, use a described RAT and described 2nd RAT: determine whether the current path loss of a described RAT is less than the second maximum path loss threshold value; Be less than described second maximum path loss threshold value based on described current path loss, determine with single RAT pattern operation; And be switched to from two RAT pattern operation with single RAT pattern operation, wherein said single RAT pattern corresponds to a RAT.

7, the method according to section 6, wherein said first maximum path loss threshold value and described second maximum path loss threshold value are different.

8, according to the method in section 1-7 described in arbitrary section, a wherein said RAT comprises Long Term Evolution LTE, and wherein said 2nd RAT comprises circuit-switched technology.

9, a user equipment (UE), this UE comprises: radio device, comprises the one or more antennas be configured to for radio communication, and wherein said radio device is configured to use at least the first wireless access technology RAT to communicate with the 2nd RAT; And be coupled to the treatment element of described radio device; Wherein said radio device and described treatment element are configured to: when with two RAT pattern operation, use a described RAT and the 2nd RAT: determine whether the current path loss of a described RAT is less than the first maximum path loss threshold value; Be less than described first maximum path loss threshold value based on described current path loss, determine with single RAT pattern operation; And be switched to from two RAT pattern operation with single RAT pattern operation, wherein said single RAT pattern corresponds to a described RAT.

10, the UE according to section 9, wherein said radio device and treatment element are configured to: be less than the first maximum path loss threshold value based on described current path loss, count-up counter; Wherein said switching exceedes threshold value based on described counter.

11, the UE according to section 10, wherein said radio device and treatment element are configured to: the time afterwards, repeat to determine whether the current path loss of a described RAT is less than described first maximum path loss threshold value; Exceed described first maximum path loss threshold value based on described current path loss, revise described counter.

12, the UE according to section 11, the described counter of wherein said amendment comprise reset described counter, and the described counter of described amendment be in response to described current path exceed with losing continuous threshold number described first maximum path loss threshold value perform.

13, the UE according to section 11, wherein said radio device and described treatment element are configured to: when with single RAT pattern operation, use a described RAT and described 2nd RAT: determine that whether the current path loss of a described RAT is more than the second maximum path loss threshold value; Exceed described second maximum path loss threshold value based on described current path loss, determine with two RAT pattern operation; And, be switched to two RAT pattern operation from single RAT pattern operation with two RAT pattern operation based on determining.

14, the UE according to section 13, wherein said first maximum path loss threshold value and described second maximum path loss threshold value are different.

15, according to the UE in section 9-14 described in arbitrary section, a wherein said RAT comprises Long Term Evolution LTE, and wherein said 2nd RAT comprises circuit-switched technology.

16, a kind of non-transitory computer accessible storage medium of stored program instruction, described program command can use at least the first wireless access technology RAT to carry out the user equipment (UE) of the radio device communicated with the 2nd RAT for determining for having, with the operation of single RAT pattern or with two RAT pattern operation, wherein said program command can be executed by processor with: determine whether the current path loss of a described RAT exceedes maximum path loss threshold value; Based on the determination result whether the current path loss of a described RAT being exceeded to maximum path loss threshold value, determine with single RAT pattern operation or with two RAT pattern operation; And based on to being with single RAT pattern operation or with described determination of two RAT pattern operation, with single RAT pattern or the operation of two RAT pattern.

17, non-transitory computer accessible storage medium according to section 16, the described determination to current path loss is wherein performed when being in single RAT pattern, the determination result wherein whether exceeding maximum path loss threshold value to the loss of the current path of a described RAT comprises the loss of described current path and exceedes described maximum path loss threshold value, wherein saidly determine with the operation of single RAT pattern or comprise with two RAT pattern operation and determine with two RAT pattern operation, and wherein said comprising with single RAT pattern or the operation of two RAT pattern is switched to two RAT pattern from single RAT pattern.

18, according to the non-transitory computer accessible storage medium in section 16-17 described in arbitrary section, the described determination to current path loss is wherein performed when being in two RAT pattern, the determination result wherein whether exceeding maximum path loss threshold value to the loss of the current path of a described RAT comprises the loss of described current path and is less than described maximum path loss threshold value, wherein saidly determine with the operation of single RAT pattern or comprise with two RAT pattern operation and determine with single RAT pattern operation, and wherein said comprising with single RAT pattern or the operation of two RAT pattern is switched to single RAT pattern from two RAT pattern.

19, according to the non-transitory computer accessible storage medium in section 16-18 described in arbitrary section, wherein said program command be also performed with: revise counter based on the determination result whether loss of the current path of a described RAT being exceeded to described maximum path loss threshold value; And wherein said determine with the operation of single RAT pattern or with two RAT pattern operation based on described counter.

20, according to the non-transitory computer accessible storage medium in section 16-19 described in arbitrary section, a wherein said RAT comprises packet-switch technology, and wherein said 2nd RAT comprises circuit-switched technology.

The embodiment of present disclosure can be implemented as various forms.Such as, some embodiments can be implemented as method, computer-readable recording medium or the computer system that computer performs.Other embodiments can use the hardware device of one or more Custom Design (such as ASIC) to realize.One or more programmable hardware element (such as FPGA) can also be used to realize other embodiments.

In certain embodiments, non-transitory computer-readable storage media can be configured to make its stored program instruction and/or data, if wherein computer system performs described program command, make computer system manner of execution, such as any embodiment of the method described here, or any combination of embodiment of the method described here, or any subset of any embodiment of the method described here, or any combination of these subsets.

In certain embodiments, computer system can be configured to comprise processor (or processor group) and storage medium, wherein said storage medium stored program instruction, wherein processor is configured to read and execution of program instructions from storage medium, wherein program command can be performed to realize any embodiment of the method in various embodiments of the method described here (or, any combination of embodiment of the method described here, or any subset of any embodiment of the method described here, or any combination of these subsets).Computer system can be implemented as various forms.Such as, computer system can be the special-purpose computer, server computer, client computer, handheld device, subscriber equipment (UE) device, flat computer, wearable computer etc. on personal computer (any implementation with in its various implementation), work station, card in computer, box.

Although below described in detail embodiment, for a person skilled in the art, once understanding of above-mentioned disclosure completely, many changes and amendment will become obvious.Claims are intended to be interpreted as to comprise all such changes and amendment.

Claims (20)

1. at least the first wireless access technology RAT can be used to carry out a method for the user equipment (UE) of the radio device communicated with the 2nd RAT for operating to have, the method comprises:

When using a described RAT with single RAT pattern operation:

Determine that the current path of a described RAT loses by described UE and whether lose threshold value more than the first maximum path;

Exceed described first maximum path loss threshold value based on described current path loss, determined to operate with two RAT pattern by described UE; And

Being operated with two RAT pattern based on determining by described UE, being switched to two RAT pattern operation from single RAT pattern operation.

2. method according to claim 1, also comprises:

Based on described current path loss more than the first maximum path loss threshold value, determine the path loss of described 2nd RAT;

Wherein said switching is also based on the path loss of described 2nd RAT.

3. method according to claim 1, also comprises:

Based on described current path loss more than the first maximum path loss threshold value, count-up counter;

Wherein said switching exceedes threshold value based on described counter.

4. method according to claim 1, also comprises:

Time afterwards, repeat to determine whether the current path loss of a described RAT exceedes described first maximum path loss threshold value;

Do not exceed described first maximum path loss threshold value based on described current path loss, revise described counter.

5. method according to claim 4, the described counter of wherein said amendment comprise reset described counter, and the described counter of described amendment be in response to described current path loss do not exceed with there is no continuous threshold number described first maximum path loss threshold value perform.

6. method according to claim 1, also comprises:

When with two RAT pattern operation, use a described RAT and described 2nd RAT:

Determine whether the current path loss of a described RAT is less than the second maximum path loss threshold value;

Be less than described second maximum path loss threshold value based on described current path loss, determine with single RAT pattern operation; And

Be switched to from two RAT pattern operation with single RAT pattern operation, wherein said single RAT pattern corresponds to a RAT.

7. method according to claim 6, wherein said first maximum path loss threshold value and described second maximum path loss threshold value are different.

8. method according to claim 1, a wherein said RAT comprises Long Term Evolution LTE, and wherein said 2nd RAT comprises circuit-switched technology.

9. a user equipment (UE), this UE comprises:

Radio device, comprises the one or more antennas be configured to for radio communication, and wherein said radio device is configured to use at least the first wireless access technology RAT to communicate with the 2nd RAT; And

Be coupled to the treatment element of described radio device;

Wherein said radio device and described treatment element are configured to:

When with two RAT pattern operation, use a described RAT and the 2nd RAT:

Determine whether the current path loss of a described RAT is less than the first maximum path loss threshold value;

Be less than described first maximum path loss threshold value based on described current path loss, determine with single RAT pattern operation; And

Be switched to from two RAT pattern operation with single RAT pattern operation, wherein said single RAT pattern corresponds to a described RAT.

10. UE according to claim 9, wherein said radio device and treatment element are configured to:

The first maximum path loss threshold value is less than, count-up counter based on described current path loss;

Wherein said switching exceedes threshold value based on described counter.

11. UE according to claim 10, wherein said radio device and treatment element are configured to:

Time afterwards, repeat to determine whether the current path loss of a described RAT is less than described first maximum path loss threshold value;

Exceed described first maximum path loss threshold value based on described current path loss, revise described counter.

12. UE according to claim 11, the described counter of wherein said amendment comprise reset described counter, and the described counter of described amendment be in response to described current path exceed with losing continuous threshold number described first maximum path loss threshold value perform.

13. UE according to claim 11, wherein said radio device and described treatment element are configured to:

When with single RAT pattern operation, use a described RAT and described 2nd RAT:

Determine that whether the current path loss of a described RAT is more than the second maximum path loss threshold value;

Exceed described second maximum path loss threshold value based on described current path loss, determine with two RAT pattern operation; And

, be switched to two RAT pattern operation from single RAT pattern operation with two RAT pattern operation based on determining.

14. UE according to claim 13, wherein said first maximum path loss threshold value and described second maximum path loss threshold value are different.

15. UE according to claim 9, a wherein said RAT comprises Long Term Evolution LTE, and wherein said 2nd RAT comprises circuit-switched technology.

The non-transitory computer accessible storage medium of 16. 1 kinds of stored program instructions, described program command can use at least the first wireless access technology RAT to carry out the user equipment (UE) of the radio device communicated with the 2nd RAT for determining for having, with the operation of single RAT pattern or with two RAT pattern operation, wherein said program command can be executed by processor with:

Determine whether the current path loss of a described RAT exceedes maximum path loss threshold value;

Based on the determination result whether the current path loss of a described RAT being exceeded to maximum path loss threshold value, determine with single RAT pattern operation or with two RAT pattern operation; And

Based on to being with single RAT pattern operation or with described determination of two RAT pattern operation, with single RAT pattern or the operation of two RAT pattern.

17. non-transitory computer accessible storage media according to claim 16, the described determination to current path loss is wherein performed when being in single RAT pattern, the determination result wherein whether exceeding maximum path loss threshold value to the loss of the current path of a described RAT comprises the loss of described current path and exceedes described maximum path loss threshold value, wherein saidly determine with the operation of single RAT pattern or comprise with two RAT pattern operation and determine with two RAT pattern operation, and wherein said comprising with single RAT pattern or the operation of two RAT pattern is switched to two RAT pattern from single RAT pattern.

18. non-transitory computer accessible storage media according to claim 16, the described determination to current path loss is wherein performed when being in two RAT pattern, the determination result wherein whether exceeding maximum path loss threshold value to the loss of the current path of a described RAT comprises the loss of described current path and is less than described maximum path loss threshold value, wherein saidly determine with the operation of single RAT pattern or comprise with two RAT pattern operation and determine with single RAT pattern operation, and wherein said comprising with single RAT pattern or the operation of two RAT pattern is switched to single RAT pattern from two RAT pattern.

19. non-transitory computer accessible storage media according to claim 16, wherein said program command be also performed with:

Counter is revised based on the determination result whether the current path loss of a described RAT being exceeded to described maximum path loss threshold value; And

Wherein said determine with the operation of single RAT pattern or with two RAT pattern operation based on described counter.

20. non-transitory computer accessible storage media according to claim 16, a wherein said RAT comprises packet-switch technology, and wherein said 2nd RAT comprises circuit-switched technology.