CN103891350A - Wireless communications cell reselection - Google Patents
Wireless communications cell reselection Download PDFInfo
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- CN103891350A CN103891350A CN201280036974.4A CN201280036974A CN103891350A CN 103891350 A CN103891350 A CN 103891350A CN 201280036974 A CN201280036974 A CN 201280036974A CN 103891350 A CN103891350 A CN 103891350A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/16—Performing reselection for specific purposes
- H04W36/20—Performing reselection for specific purposes for optimising the interference level
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/26—Network addressing or numbering for mobility support
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
Abstract
A method, apparatus and computer program product are provided in order to trigger a reselectionof a serving cell in an instance in which a mobile terminal may be creating neighbor cell interference. Based upon received reselection data, the mobile terminal may release and/or suspend a network resource, such as an enhanced dedicated channel in order to trigger a reselectionof a new serving cell. In this regard, a method is provided that includes determining the presence of a reselection condition based on reselection data. In an instance in whichthe presence of the reselection condition is determined, the method includes causing a network resource to be modified. The method also includes causing a reselectionof a serving cell.
Description
Technical field
Embodiments of the invention do not relate in general to radio communication, and more specifically but not exclusively, relate to hang up and/or releasing resource for triggering the gravity treatment of Serving cell.
Background technology
Communication between mobile terminal and Serving cell, such as the uplink communication from mobile terminal to Serving cell, may cause interference to neighbor cell sometimes.This interference may suppress the operation of neighbor cell, or may at least make mobile terminal and/or neighbor cell more work poor efficiency.Under certain operations state (such as CELL_DCH state), mobile terminal and Serving cell can monitor neighbor cell by the mode that the situation of neighbor cell interference can be identified, and can revise by the mode with regard to the possibility that reduces neighbor cell interference the operation of mobile terminal and/or Serving cell.In fact, under CELL_DCH state, can add neighbor cell to active set, to be comprised in up-link power control.Thus, mobile terminal can receive from Serving cell and from the signal of neighbor cell.Thereby such situation can be identified in neighbor cell, wherein mobile terminal is causing interference, thereby mobile terminal may reduce its up-link power, to attempt correspondingly to reduce neighbor cell interference.More specifically, for the mobile terminal operating, can, via the relative authorization of the neighbor cell in the active set of next comfortable mobile terminal, control the up-link power from mobile terminal under CELL_DCH state.
But under other mode of operation, mobile terminal may not communicated by letter with neighbor cell in an identical manner, thereby and may not identify the situation of potential neighbor cell interference.For example, the mobile terminal under CELL_FACH state may receive only the signal from Serving cell.Thereby, neighbor cell is being caused in the situation of interference at mobile terminal, neighbor cell can not with communication of mobile terminal so that request reduce power (such as up-link power), to attempt correspondingly to reduce neighbor cell interference.For example, in comparison with from neighbor cell to the mobile terminal under CELL_DCH state, for controlling the relative authorization of up-link power, the mobile terminal operating under CELL_FACH state may not have the similar control to its up-link power, this is because the up-link power of this mobile terminal may only utilize absolute grant to control by Serving cell, and does not consider potential neighbor cell interference.Thereby, causing the mobile terminal of neighbor cell interference may damage the operation of neighbor cell, and in some cases, may make it suffer Radio Link Failure.
In the version 8 of third generation partner program (3GPP) specification, introduce the enhanced uplink for mobile terminal under idle pulley, under CELL_FACH state.This enhanced uplink is known as public enhancing dedicated channel (common E-DCH).Thereby mobile terminal can utilize except CELL_DCH state or be different from the E-DCH under other radio resource control (RRC) state of CELL_DCH state.Although may there be the possibility of the neighbor cell interference that the ul transmissions of the mobile terminal under CELL_FACH state causes, but can expect, mobile terminal will operate under the CELL_FACH state of being everlasting, such as for carrying out transfer of data not frequent or burst, and due to the introducing of E-DCH, the operation of the mobile terminal under CELL_FACH state may increase.Thereby the problem relevant with possible neighbor cell interference also can become more frequent and be a problem in the time that mobile terminal operates under CELL_FACH state.
It was suggested the multiple method based on signaling, to attempt to be provided for the in the situation that mobile terminal just operating under CELL_FACH state therein the certain methods of the interference control of neighbor cell.For example, but proposing has various defects conventionally, comprises the complexity for mobile terminal and/or Serving cell of increase or fails to tackle all service conditions or scene.
Summary of the invention
Therefore, (according to the example embodiment that will describe) provides a kind of method, device and computer program generally, to trigger the gravity treatment of Serving cell in the situation that mobile terminal may cause interference to neighbor cell.Based on the gravity treatment data that receive, mobile terminal can discharge and/or suspended network resource, such as strengthening dedicated channel (E-DCH), to trigger the gravity treatment of new Serving cell.In one embodiment, the method, device and computer program can, in the situation that mobile terminal has caused neighbor cell interference during in CELL_FACH state potentially, trigger the gravity treatment of new community.Thus, the method for example embodiment of the present invention, device and computer program can reduce neighbor cell interference, and overall system performance is provided thus.
According to first aspect, a kind of wireless communications method comprises: determine the appearance of cell reselection condition based on gravity treatment data; In the situation that definite cell reselection condition occurs, make to revise Internet resources; And make to carry out the gravity treatment of Serving cell.
According to second aspect, a kind of device comprises processing unit, and described processing unit is arranged for: the gravity treatment data based on receiving are determined the appearance of cell reselection condition; In the situation that definite cell reselection condition occurs, make to revise Internet resources; And make to carry out the gravity treatment of Serving cell.
According to the third aspect, a kind of method comprises: during in CELL_FACH state, determine the appearance of uplink channel interference at mobile terminal; In the case of having determined the appearance of uplink channel interference, make amendment strengthen dedicated channel " E-DCH "; And make to carry out the gravity treatment of Serving cell.
According to fourth aspect, a kind of computer program is provided, it comprises having at least one computer-readable recording medium that is stored in computer-readable program instructions wherein, described computer-readable program instructions is drawn together program command, described program command is arranged to the appearance of determining reselection conditions based on gravity treatment data in the time being performed, in the situation that definite reselection conditions occurs, make to revise Internet resources, and make to carry out the gravity treatment of Serving cell.
According to the 5th aspect, a kind of computer program is provided, it at least comprises having the computer-readable recording medium that is stored in computer-readable program instructions wherein, described computer-readable program instructions is drawn together program command, and described program command is arranged in the time being performed, at mobile terminal during in CELL_FACH state, determine the appearance of uplink channel interference, in the situation that definite uplink channel interference occurs, make to revise E-DCH, and and make to carry out the gravity treatment of Serving cell.
By following description and claim, it is clear that other aspects and embodiment will become.
Brief description of the drawings
Therefore, briefly described example embodiment of the present invention, referring now to accompanying drawing, it may not be drawn in proportion, and wherein:
Fig. 1 is the schematically showing of system with Serving cell and one or more neighbor cells, and this system may be subject to the interference that mobile terminal causes and may have benefited from embodiments of the invention;
Fig. 2 is the block diagram of the device that can be realized by mobile terminal according to an embodiment of the invention;
Fig. 3 is the flow chart that illustrates the operation of carrying out according to one embodiment of present invention; And
Fig. 4 is the flow diagram that illustrates the flow chart of the operation of carrying out according to another embodiment of the invention.
Embodiment
Now will with reference to accompanying drawing, present invention is described more all sidedly hereinafter, shown in the drawings more of the present invention but be not whole embodiment.In fact, these inventions can with many multi-form realize and be not appreciated that be confined to the embodiments set forth herein; On the contrary, thus provide these embodiment present disclosures to meet suitable legal requiremnt.Identical Reference numeral refers to similar elements in the whole text.
As used in this application, term " circuit arrangement " refers to following whole: (a) only the circuit of hardware is realized (such as, the only realization of simulation and/or digital means), and (b) combination of circuit and software (and/or firmware), such as (where applicable): (i) the combination of processor (multiple), or (ii) processor (multiple)/software (comprising digital signal processor (multiple)), the part of software and memory (multiple), they carry out work together to make such as the device of mobile phone or server is carried out various functions, and (c) circuit, such as the part of microprocessor (multiple) or microprocessor (multiple), they need software or firmware to operate, even if software or firmware not physically exist.
This definition of " circuit arrangement " is applied to all uses in this application of this term, is included in the use in any claim.As further example, as used in this application, (or they) subsidiary software and/or realization of firmware of the part of a processor (or multiple processor) only or processor and it also contained in term " circuit arrangement ".Term " circuit arrangement " also for example and where applicable contain concrete claimed element, for base band integrated circuit or the application-specific integrated circuit (ASIC) of mobile phone, or similar integrated circuit in server, cellular network device, other network equipment.
Method, device and the computer program of an exemplary embodiment of the present invention is arranged to determines that mobile terminal may cause the situation of neighbor cell interference therein, such as the result of the interference being caused by the ul transmissions from mobile terminal to Serving cell.According to an example embodiment, Internet resources (such as E-DCH) can may be caused the mobile terminal amendment (for example hang up and/or discharge) of neighbor cell interference.Based on modified Internet resources, mobile terminal can be selected new Serving cell, to attempt to reduce neighbor cell interference.In one embodiment, the mobile terminal possibility that disturb neighbor identification when in CELL_FACH state, thus allow neighbor cell interference reduced or otherwise tackled, even when mobile terminal is during in CELL_FACH state.
Although method, device and computer program can be realized in multiple different system, but an example of such system is shown in Figure 1, it comprises the first communication equipment (for example mobile terminal 10), and this equipment can be via the Node B of Serving cell 12(such as base station, Node B, evolution (eNB) or other access point) with such as core network of network 14() communicate by letter.Although network can be according to Long Term Evolution (Long Term Evolution, or LTE-advanced person (LTE-Advanced LTE), LTE-A) configure, but other network can be supported method, device and the computer program of embodiments of the invention, comprise according to Wideband Code Division Multiple Access (WCDMA) (W-CDMA), CDMA2000, global system for mobile communications (GSM), general packet radio service (GPRS) and/or and so on the network configuring.
Such as mobile terminal 10(also referred to as subscriber equipment (UE)) mobile device can, via Serving cell 12 and network 14 then, communicate by letter with other communication equipment or miscellaneous equipment.In some cases, communication equipment can comprise for to Serving cell transmitted signal and for receive the antenna of signal from Serving cell.
In some example embodiment, mobile terminal 10 can be mobile communication equipment, generates any in equipment, content consumption equipment or their combination such as mobile phone for example, portable digital-assistant (PDA), beep-pager, portable computer or numerous other hand-held or portable communication device, computing equipment, content.Thereby, mobile terminal 10 can comprise can be individually or with one or more memory pools limit one or more processors of processing circuit unit.Processing circuit unit can utilize the instruction being stored in memory to make mobile terminal 10 operate or carry out specific function in concrete mode in the time that one or more processors are carried out instruction.Mobile terminal 10 can also comprise telecommunication circuit device and corresponding hardware/software, to make it possible to communicating by letter of realization and miscellaneous equipment and/or network 14.
For example, in one embodiment, mobile terminal 10 and/or Serving cell 12 may be implemented as or otherwise comprise the device 20 being represented by the block diagram of Fig. 2 generally.Although device 20 can for example be moved terminal 10 or Serving cell 12 adopts, and it should be noted that, thereby following parts, equipment or element may not be compulsory and some of them can be omitted in certain embodiments.In addition, some embodiment can be included in illustrate herein and describe outside other or different parts, equipment or elements.
As shown in Figure 2, install 20 and can comprise processing circuit unit 22 or otherwise communicate by letter with processing circuit unit 22, processing circuit unit 22 is arranged to be carried out according to example embodiment action described herein.Processing circuit unit 22 can be arranged to carry out according to example embodiment data processing of the present invention, application and carry out and/or other processing and management service.In certain embodiments, device or processing circuit unit may be implemented as chip or chipset.In other words, device or processing circuit unit can comprise one or more physical package (for example chip), and it comprises for example, material, parts and/or circuit on structure assembly (substrate).Structure assembly can provide physical strength to the component circuitry device comprising on it, retain size and/or electric interactions limit.Therefore, device or processing circuit unit can be arranged to and on one single chip, implement embodiments of the invention in some cases, or are implemented as single " SOC (system on a chip) ".Therefore, in some cases, chip or chipset can be configured for carrying out the parts of one or more operations that function described herein is provided.
In an example embodiment, treatment circuit system 22 can comprise processor 24 and memory 28, and they can be communicated by letter with communication interface 26 or otherwise control communication interface 26, and comprise in some cases user interface 29.For example, for example, thereby processing circuit unit may be implemented as and be arranged to (, using the combination of hardware, software or hardware and software) carries out the circuit chip (, integrated circuit (IC) chip) of operation described herein.But in some embodiment that adopt in the context about mobile terminal 10, processing circuit unit may be implemented as a part for mobile computing device or other mobile terminal.
If user interface 30(is implemented) can communicate by letter with processing circuit unit 22, the instruction of inputting to be received in the user at user interface place, and/or provide the sense of hearing, vision, machinery or other output to user.Thereby user interface can for example comprise keyboard, mouse, joystick, display, touch-screen, loudspeaker, loud speaker and/or other I/O mechanism.Device 20 does not need always to comprise user interface.For example, device is implemented as in the situation of Serving cell 12 therein, and device can not comprise user interface.Therefore, in Fig. 2, user interface is shown in broken lines.
In an example embodiment, memory 28 can comprise one or more nonvolatile memory devices, as being for example that fix or removable volatibility and/or nonvolatile memory.Memory can be arranged to storage information, data, application, instruction etc., for making device 20 can carry out the various functions according to example embodiment of the present invention.For example, memory can be arranged to buffer memory input data, processes for processor 24.Additionally or alternatively, memory can be arranged to storage instruction, carry out for processor.Alternative as another, memory can comprise of multiple databases for storing multiple file, interior perhaps data set.Among the content of memory, application can be stored for processor and carry out, so that the function of execution and each corresponding association.In some cases, memory can be used for transmission of information between the parts of device via bus and processor communication.
With reference now to Fig. 3 and Fig. 4,, according to the present invention, an example embodiment illustrates the performed operation of example by method, device and program product (such as the device 20 of Fig. 2) from the angle of mobile terminal 10.Will be appreciated that, each frame in flow chart and the combination of flow chart center can realize by variety of way, the miscellaneous equipment being associated such as hardware, firmware, processor, circuit arrangement and/or with the execution of software that comprises one or more computer program instructions.For example, one or more processes described above can realize by computer program instructions.Thus, the computer program instructions of realizing process described above can be implemented the memory devices 28 of the device of embodiments of the invention and store and carried out by the processor 24 of device.As will be understood by those, arbitrarily such computer program instructions (for example can be loaded into computer or other programmable device, hardware) upper to produce machine, thus the computer obtaining or other programmable device are realized the realization of specified function in the frame (multiple) that flow chart is provided.These computer program instructions also can be stored in nonvolatile computer-readable memory, this memory can command calculations machine or other programmable device with ad hoc fashion work, thereby be stored in instruction in computer-readable memory and produce the manufacture of specified function in its frame (multiple) of carrying out realization flow figure.Computer program instructions can also be loaded on computer or other programmable device, produce computer implemented process to make carrying out sequence of operations on computer or other programmable device, thereby the instruction of carrying out is provided for realizing the operation of specified function in the frame (multiple) of flow chart on computer or other programmable device.Like this, the operation in Fig. 3 and Fig. 4, in the time being performed, converts computer or processing circuit unit to be configured to carry out example embodiment of the present invention particular machine.Therefore, the Operation Definition in Fig. 3 and Fig. 4 each is used for configuring computer or processing circuit unit (for example processor 22) to carry out the algorithm of example embodiment.In some cases, can provide the example with the processor of carrying out the algorithm of corresponding in accompanying drawing 3 and Fig. 4 for all-purpose computer, all-purpose computer is transformed into the particular machine that is configured to carry out example embodiment.
Therefore, the frame support of flow chart is for carrying out the combination of device of appointed function, and for carrying out the combination of operation of appointed function.It will also be understood that, the one or more frames in flow chart and the combination of flow chart center can realize by carrying out the special hardware based computer system of appointed function or the combination of specialized hardware and computer instruction.
In certain embodiments, some in above operation can be modified or further amplification by as described below.In addition, can also comprise in certain embodiments extra optional operation (its some examples are shown in broken lines in Fig. 3 and Fig. 4).It should be understood that following amendment, optionally add or amplification in each can be together with above operation, individually or with any other operation in feature described herein combined be included.
Fig. 3 is the flow chart that illustrates the Serving cell gravity treatment of carrying out according to one embodiment of present invention.Referring now to Fig. 3, as shown in operation 30, the device 20 of for example being realized by mobile terminal 10 can comprise the parts for receiving gravity treatment data, such as processing circuit unit 22, processor 24, communication interface 26 or analog.In one embodiment, gravity treatment data can comprise interfering data, reselection criteria and/or networking command.In one embodiment, reselection criteria is such standard, this standard, in the time determining that power that the power ratio Serving cell 12 that receives, neighbor cell 16 receives is higher, will make device 20(such as mobile terminal 10 conventionally) from current service cell, (such as Serving cell 12) is transitted towards another Serving cell (such as neighbor cell 16).In an example embodiment, and as mentioned above, the gravity treatment data of reception can also comprise interfering data.Interfering data can be indicated the rank of the interference between mobile terminal (such as mobile terminal 10) and one or more neighbor cell (such as neighbor cell 16).
As shown in the decision operation 32 of Fig. 3, device 20 can also comprise the parts of the appearance for determining reselection conditions, such as processing circuit unit 22, processor 24 or analog.In an example embodiment, reselection conditions can occur in following situation, determine that therein (such as passing through processor) reselection conditions has been able to determine in satisfied situation, therein that (such as also passing through processor) exist in situation about disturbing between mobile terminal and one or more neighbor cell, and/or receives (such as passing through communication interface) indicating mobile terminal therein for example by the situation of the networking command of releasing network resources (such as E-DCH).Can be identified in the potential interference between mobile terminal 10 and neighbor cell 16 by variety of way, these modes for example comprise the through-put power by analyzing mobile terminal, and the uplink channel interference rank of path loss and/or neighbor cell can be analyzed.
In one embodiment, device 20(such as processor 24) can determine the through-put power of the signal sending to Serving cell 12 via up link Dedicated Physical Control Channel (DPCCH).The relatively high situation of through-put power of signal for sending via uplink channel (such as up link DPCCH) therein, mobile terminal 10 can position away from Serving cell relatively, and/or mobile terminal 10 can suffer the uplink channel interference of free neighbor cell 16 other mobile terminals of serving.In any example, the relatively high through-put power of the signal sending for the uplink channel via mobile terminal 10 may cause interference to neighbor cell 16.
Additionally or alternatively, device 20(such as processor 24) can determine, in one embodiment, path loss can be determined to be in the value of Primary Common Pilot Channel (CPICH) through-put power as sent by network signal used and poor by between the measured CPICH received signal code power (RSCP) of mobile terminal.The path loss of neighbor cell 16 provides the instruction about the distance between mobile terminal 10 and neighbor cell 16.In the situation that path loss is relatively little therein, mobile terminal 10 potential range neighbor cells 16 are relatively near, thereby increase the possibility that may cause for neighbor cell 16 interference by the signal transmission of mobile terminal 10.On the contrary, in the relatively large situation of path loss therein, mobile terminal potential range neighbor cell is relatively far away, thereby will cause the possibility of interference lower for neighbor cell 16 from the signal transmission of mobile terminal 10.
In one embodiment, device 20(such as processor 24) can be arranged to through-put power and first threshold comparison, wherein through-put power meets first threshold by exceeding first threshold; Be used for path loss and Second Threshold comparison, wherein path loss meets Second Threshold by being less than Second Threshold; And preferably by one or more other parameters (such as uplink channel interference rank) and corresponding threshold value comparison.Threshold value can be predefined, and is stored by the memory 28 of device 20.Alternatively, network element such as Serving cell 12, radio network controller or analog may be such as measuring control message via RRC or via system information (such as SIB5, SIB11, SIB11bis and/or SIB12), notifying corresponding threshold value to mobile terminal.
In an example embodiment and as described herein, device 20(such as processor 24) can be individually or combinedly based on reselection criteria described above and interfering data, determine that reselection conditions may occur.But, device 20(such as processor 24) can alternatively or additionally determine that to/from the scheduled volume of the data of mobile terminal transmission reselection conditions occurs based on existence.For example, for example, in the time only having data to be in a small amount sent out (Common Control Channel (CCH) transmission), the probability of reselection conditions is lower so, and the probability that therefore Internet resources (such as E-DCH) need to be suspended is lower.But in the time having a large amount of data, for example data volume exceedes up link buffer and/or another predetermined restriction, is that reselection conditions will occur and Internet resources (such as E-DCH) need to be suspended so more possibly.Internet resources (such as E-DCH) can be released and or be suspended, to allow gravity treatment to occur prior to the transmission of mass data.
As shown in the operation 34 at Fig. 3, device 20 can also comprise the parts for making to send report, such as processing circuit unit 22, processor 24, communication interface 26 or analog).In one embodiment, device is determined in the situation of reselection conditions appearance therein, as above, with reference to determining that operation is 32 described, then device can be to Serving cell, Internet resources, wireless controller and/or analog inform that Internet resources (such as E-DCH) are released.
In one embodiment, being caught by device 20(such as mobile terminal 10) report that sends can provide buffer status, such as no matter the empty buffer status of buffer virtual condition.For example, even if buffer non-NULL, the device 20 of for example being realized by mobile terminal 10 still can be reported empty buffer status (for example,, Zong E-DCH buffer status (TEBS)=0 byte) in schedule information (SI).In the time receiving sky buffer status, network (such as Serving cell 12) can releasing network resources (such as E-DCH).For example, once mobile terminal 10 recovers (no longer including the interference to neighbor cell), resource (such as E-DCH) can be recovered or by sub-distribution more so.
In another embodiment, device 20(such as mobile terminal 10) can add newer field to SI, it may need for sending indication network resource (such as E-DCH) to Internet resources, radio network controller and/or analog the report being suspended.Alternatively or additionally, newer field can also adopt the form of the particular value of TEBS.Alternatively or additionally, newer field can also adopt the form of the particular value of channel quality instruction (CQI).
As shown in the operation 36 at Fig. 3, device 20 can also comprise for having identified therein the appearance of reselection conditions and providing situation about reporting to network, make to revise the parts of Internet resources (such as E-DCH), such as processing circuit unit 22, processor 24, communication interface 26 or analog.In one embodiment, device 20(such as mobile terminal 10) by independently discharging or suspended network resource (such as E-DCH) is revised Internet resources.By independently taking action, mobile terminal 10 can reduce to postpone.In other embodiments, can be at device 20(such as mobile terminal 10) carry out releasing network resources (such as E-DCH) by the non-absolute grant of enlivening during in CELL_FACH state.Alternatively or additionally, non-use and/or device 20(such as the mobile terminal 10 that enlivens absolute grant) autonomous action may also follow the foundation such as the overtime process being defined by timer.The overtime process being defined by timer can be arranged to the request that stops another resource in overtime process, or can be arranged to the prevention new resource of mobile terminal request until disturbed condition no longer occurs.
Alternatively or additionally, the device 20 of for example being realized by mobile terminal 10 can use for receiving the parts (such as processor 24 and communication interface 26) from the message of Serving cell 12, Internet resources, radio network controller and/or analog, receives the message that makes the amendment of carrying out Internet resources (such as E-DCH) as described in the operation 36 about Fig. 3.In one embodiment, can receive the order (for example absolute grant value, high-speed shared control channel command and/or MAC header) of the hang-up of instruction mobile terminal or releasing network resources (such as E-DCH).In another embodiment, mobile terminal 10 can receive the instruction (for example reducing mobile terminal transmitted power to avoid interference) of modified authorization of service, and this just makes mobile terminal 10 hang up or releasing resource.
Alternatively or additionally, message can be indicated, the device 20 of for example being realized by processor 24 can be in the time of the assessment gravity treatment as shown in about operation 38, to neighbor cell or frequency application specifically setover, skew and/or priority.For example, to neighbor cell or frequency application specifically setover, skew and/or priority allow the rapid triggering to cell reselection effectively.In this example, can avoid using RRC signaling connect and carry out redirected to discharge RRC.Mobile terminal 10 can gravity treatment and is kept RRC signaling and any packet data protocol (PDP) context that will in other frequency, re-establish.
Alternatively or additionally, the device of for example being realized by Serving cell 12 can trigger reselection conditions.In some cases, reselection conditions can be triggered in Serving cell 12 in the situation that mobile terminal 12 is not reported disturbed condition and/or occurred reselection criteria.Network experiences in the situation of high capacity in a frequency therein, Serving cell 12 for example can be as with reference to the described Internet Transmission that makes to indicate reselection conditions of figure 3, to make mobile terminal 10 revise Internet resources (such as E-DCH) for the object of load balance.Under this sample situation, the release of Internet resources (such as E-DCH) will be triggered by Serving cell 12 (for example, via high-speed shared control channel command or non-active mandate etc.), and networking command will probably be followed gravity treatment skew.Gravity treatment skew is arranged to and makes mobile terminal 10 be switched to another frequency.
Alternatively or additionally, the device 20 of for example being realized by processor 24 can receive the concrete adjusting of calculating for gravity treatment.For example, gravity treatment is calculated and can be comprised for the neighbor cell interim biasing of 16 application (such as skew and/or priority).
As shown in the operation 38 of Fig. 3, device 20 parts that can also comprise for making the gravity treatment of carrying out Serving cell, such as processing circuit unit 22, processor 24, communication interface 26 or analog.As described herein, device 20(such as mobile terminal 10) can carry out new Serving cell gravity treatment to avoid interference situation.Alternatively or additionally, gravity treatment can comprise by mobile terminal 10 and activates the previous Serving cell of hanging up or discharging.Alternatively or additionally, in one embodiment, in the time meeting reselection criteria, radio resource control (RRC) layer can should be suspended or discharge to medium access control (MAC) indication network resource (such as E-DCH resource).The hang-up of Internet resources or amendment are further described with reference to operation 34.
As implied above, method, device and the computer program of an embodiment is arranged to and allows in CELL_FACH operating mobile terminal 10 to be identified for the possibility of neighbor cell interference, and hang-up and/or releasing network resources (such as E-DCH) are even with when mobile terminal is in the also gravity treatment of triggering cell of lower time of CELL_FACH state.For the further explanation to this embodiment is provided, with reference to figure 4, wherein mobile terminal is initially under CELL_FACH state and operates, as operates as shown in the of 40.The device 20 of this embodiment can comprise for determining whether in the time that mobile terminal is under CELL_FACH state mobile terminal is causing the parts of neighbor cell interference, such as processing circuit unit 22, processor 24 or analog.For example,, referring to the operation 42 of Fig. 4.As mentioned above, device (such as processor) can be by determining whether one or more parameters meet corresponding threshold value and/or whether reselection criteria occurs, determine whether to cause neighbor cell interference.For example, in order to determine the appearance of disturbing, device (such as processor) can be determined, whether the through-put power for the signal via uplink channel transmission meets corresponding threshold value, whether the path loss for the signal from neighbor cell reception meets corresponding threshold value, and/or whether meets corresponding threshold value in the uplink channel interference rank of neighbor cell.
Install therein 20(such as processor 24) do not have to determine and causing in the situation of neighbor cell interference, device does not need to initiate to hang up and/or releasing network resources, and as an alternative, mobile terminal 10 can continue to operate under CELL_FACH state, and device continues the various parameters of monitoring for the instruction of neighbor cell interference and/or reselection criteria.But, device can also comprise for determining causing neighbor cell interference in the situation that, make to provide to network element (such as Serving cell 12, radio network controller or other network elements) parts of measurement report, such as processing circuit unit 22, processor 24, communication interface 26 or analog.In one embodiment, based on determined and interference neighbor cell, device can comprise the parts for making to revise Internet resources (such as E-DCH), such as processing circuit unit, processor, communication interface or analog.Referring to the operation 44 of Fig. 4.As described in the operation 36 about Fig. 3, device can discharge and/or hang up E-DCH resource.As shown in the operation 46 of Fig. 4, device 20 parts that can also comprise for making the gravity treatment of carrying out Serving cell, such as processing circuit unit 22, processor 24, communication interface 26 or analog.
Advantageously, install as described herein 20, method and computer program product makes mobile terminal 10 can in the time that Internet resources (such as E-DCH) is assigned with, carry out cell reselection.Device, method and computer program product also allow the flexible condition (thereby for example mass data may cause high interference instruction gravity treatment) about the applicable condition of execution gravity treatment as described herein.In certain embodiments, device, method and computer program product are avoided causing interference, the radio jink failure to neighbor cell 16 and go offline as described herein, avoid complicated interference control algolithm simultaneously.Device, method and computer program product also provide balancing dynamic load having between the delay of minimizing and the frequency of the power loss of minimizing as described herein.
Many amendments of the present invention described in this paper and other embodiment will be recognized by those skilled in the relevant art of the present invention that given instruction benefits from description above and associated drawings.Therefore, the present invention that it being understood that is not limited to disclosed specific embodiment, and amendment is intended to comprise within the scope of the appended claims with other embodiment.In addition, although description above and associated drawings have been described example embodiment in the sight of the particular example combination of element and/or function, but be to be understood that passable, can, in the case of not deviating from the scope of claims, provide the various combination of element and/or function by alternative.Thus, for example, element and/or function describe clearly above outside different combinations also should be contemplated to and can be set forth by some in claims.Although adopted concrete term herein, they are objects that use and that be not used in restriction in general and illustrative meaning only.
Claims (22)
1. a wireless communications method, comprising:
Determine the appearance of cell reselection condition based on gravity treatment data;
In the situation that definite cell reselection condition occurs, make to revise Internet resources; And
Make to carry out the gravity treatment of Serving cell.
2. method according to claim 1, wherein makes to revise described Internet resources and comprise the described Internet resources of hang-up or discharge at least one in described Internet resources, and wherein said Internet resources comprises enhancing dedicated channel " E-DCH ".
3. according to claim 1 or method claimed in claim 2, when wherein at least one in definite following situation occurs, cell reselection condition is occurred:
Meet the situation of Serving cell reselection criteria;
Meet the situation of disturbed condition; And
Receive the situation of networking command.
4. according to the method described in any one in aforementioned claim, also comprise and make to send report, the appearance of described cell reselection condition is indicated in wherein said report.
5. method according to claim 4, wherein makes transmission report also comprise and makes to send empty buffer device message.
6. method according to claim 4, wherein makes transmission report also be included in scheduling information report and generates newer field, and wherein said newer field is indicated the described amendment of described resource.
7. method according to claim 1, wherein makes to revise described Internet resources and is included in and in the time of CELL-FACH state, generates non-active mandate; And the non-active mandate that transmission is generated.
8. method according to claim 1, wherein makes to revise described Internet resources and comprises the message on hold that receives instruction and strengthen the hang-up of dedicated channel " E-DCH " resource, receive the instruction that authorization of service has been modified or receive at least one in cell reselection message.
9. according to the method described in any one in aforementioned claim, wherein said Serving cell is at least one in current service cell and another Serving cell.
10. a radio communication device, comprises processing unit, and described processing unit is arranged for:
Gravity treatment data based on receiving are determined the appearance of cell reselection condition;
In the situation that definite cell reselection condition occurs, make to revise Internet resources; And
Make to carry out the gravity treatment of Serving cell.
11. devices according to claim 10, wherein said processing unit is also arranged for and makes described device hang up described Internet resources or discharge at least one in described Internet resources, and wherein said Internet resources comprise enhancing dedicated channel " E-DCH ".
12. according to the device described in claim 10 or claim 11, when wherein at least one in definite following situation occurs, cell reselection condition is occurred:
Meet the situation of cell reselection criteria;
Meet the situation of disturbed condition; And
Receive the situation of networking command.
13. according to claim 10 to the device described in any one in 12, and wherein said processing unit is arranged for and makes to send report, and the appearance of described cell reselection condition is indicated in wherein said report.
14. devices according to claim 13, wherein make to send described report and make to send empty buffer device message.
15. devices according to claim 13, wherein make to send described report and are included in scheduling information report and generate newer field, and wherein said newer field is indicated the described amendment of described resource.
16. devices according to claim 10, wherein said processing unit is arranged for and in CELL-FACH state, is generating non-active mandate; And make to send the non-active mandate generating.
17. devices according to claim 10, wherein said processing unit is arranged at least one in the message on hold that receives instruction and strengthen the hang-up of dedicated channel " E-DCH " resource, instruction or cell reselection message that authorization of service has been modified.
18. 1 kinds of methods, comprising:
During in CELL_FACH state, determine the appearance of uplink channel interference at mobile terminal;
In the case of having determined the appearance of uplink channel interference, make amendment strengthen dedicated channel " E-DCH "; And
Make to carry out the gravity treatment of Serving cell.
19. methods according to claim 18, comprise if determined the appearance of uplink channel interference, make described reselection conditions occur, when wherein at least one in following situation occurs, determine the appearance of uplink channel interference:
Meet the situation of cell reselection criteria;
Meet the situation of disturbed condition; And
Receive the situation of networking command.
20. according to the method described in claim 18 or claim 19, wherein makes to revise message on hold that described E-DCH comprises the hang-up that receives instruction E-DCH resource, receives the instruction that authorization of service has been modified or receive at least one in cell reselection message.
21. 1 kinds of computer programs, comprise and there is at least one computer-readable recording medium that is stored in computer-readable program instructions wherein, described computer-readable program instructions is drawn together program command, described program command is arranged to the appearance of determining reselection conditions based on gravity treatment data in the time being performed, in the situation that determining that described reselection conditions occurs, make to revise Internet resources, and make to carry out the gravity treatment of Serving cell.
22. 1 kinds of computer programs, at least comprise and there is the computer-readable recording medium that is stored in computer-readable program instructions wherein, described computer-readable program instructions is drawn together program command, described program command is arranged at mobile terminal during in CELL_FACH state in the time being performed, determine the appearance of uplink channel interference, for in the case of having determined the appearance of uplink channel interference, make to revise E-DCH, and for making to carry out the gravity treatment of Serving cell.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1114029.0A GB2493724B (en) | 2011-08-15 | 2011-08-15 | Wireless communications cell reselection |
| GB1114029.0 | 2011-08-15 | ||
| PCT/IB2012/054153 WO2013024443A1 (en) | 2011-08-15 | 2012-08-15 | Wireless communications cell reselection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103891350A true CN103891350A (en) | 2014-06-25 |
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Family Applications (1)
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| CN201280036974.4A Pending CN103891350A (en) | 2011-08-15 | 2012-08-15 | Wireless communications cell reselection |
Country Status (3)
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|---|---|
| CN (1) | CN103891350A (en) |
| GB (1) | GB2493724B (en) |
| WO (1) | WO2013024443A1 (en) |
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| CN108924927A (en) * | 2017-04-13 | 2018-11-30 | 中兴通讯股份有限公司 | Identify distribution, message, parameter transmission, processing method and processing device |
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Also Published As
| Publication number | Publication date |
|---|---|
| GB201114029D0 (en) | 2011-09-28 |
| GB2493724A (en) | 2013-02-20 |
| GB2493724B (en) | 2015-01-07 |
| WO2013024443A1 (en) | 2013-02-21 |
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