CN102740495B - The method of Stochastic accessing, terminal equipment and communication system - Google Patents
The method of Stochastic accessing, terminal equipment and communication system Download PDFInfo
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- CN102740495B CN102740495B CN201110224472.1A CN201110224472A CN102740495B CN 102740495 B CN102740495 B CN 102740495B CN 201110224472 A CN201110224472 A CN 201110224472A CN 102740495 B CN102740495 B CN 102740495B
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Abstract
The embodiment of the present invention provides a kind of method of Stochastic accessing, terminal equipment and communication system.The method comprises: determine current traffic and traffic carrying capacity threshold value; According to the relation determination Stochastic accessing type of current traffic and traffic carrying capacity threshold value.The embodiment of the present invention makes terminal equipment can according to current traffic carrying capacity etc., select suitable Stochastic accessing type, thus solve owing to being only confined to public enhancing dedicated channel type or Random Access Channel type and the wasting of resources caused and delay, improve the utilization ratio of resource.
Description
This application claims the priority being entitled as the application for a patent for invention 201110084143.1 of " method of Stochastic accessing, terminal equipment and communication system " submitted to State Intellectual Property Office on April 2nd, 2011.
Technical field
The embodiment of the present invention relates to wireless communication field, and more specifically, relates to the method for Stochastic accessing, terminal equipment and communication system.
Background technology
According to the regulation of current agreement, as UE (UserEquipment; Subscriber equipment) and UTRAN (TerrestrialRadioAccessNetwork; Land radio access web) all support CommonE-DCH (CommonEnhanced-DedicatedChannel; Public enhancing dedicated channel) time, be in the user of non-dedicated connected state, no matter send the size of business data packet, the transmission that CommonE-DCH resource carries out follow-up data can only be competed.
Along with idle (free time), CELL_FACH (CELLForwardAccessChannel; Cell forward access channel), CELL_PCH (CELLPagingChannel; Cell paging channel), URA_PCH (UTRANRegistrationAreaPagingChannel; UTRAN Acceditation Area paging channel) application of the non-dedicated connection status such as state is more and more extensive, uses the number of users of non-dedicated connection status also to increase gradually.If if support that in a community user of CommonE-DCH is more, but these users still can only access CommonE-DCH resource, can cause the waste of resource and the delay of Packet Generation, affect communication quality, and then affect the impression of user.
Summary of the invention
The embodiment of the present invention provides a kind of method of Stochastic accessing, terminal equipment and communication system, can improve the level of resources utilization.
On the one hand, provide a kind of method of Stochastic accessing, comprising: determine current traffic and traffic carrying capacity threshold value; According to the relation determination Stochastic accessing type of current traffic and traffic carrying capacity threshold value.
On the other hand, provide a kind of terminal equipment, comprising: determining unit, for determining current traffic and traffic carrying capacity threshold value; Access unit, for the relation determination Stochastic accessing type according to current traffic and traffic carrying capacity threshold value.
On the other hand, provide a kind of communication system, comprise base station equipment and above-mentioned terminal equipment.
The embodiment of the present invention makes terminal equipment according to current traffic carrying capacity, can select suitable Stochastic accessing type, thus solves the wasting of resources and delay that cause owing to being only confined to public enhancing dedicated channel type, improves the utilization ratio of resource.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic flow diagram of the method for transmission upstream data according to the embodiment of the present invention.
Fig. 2 is the schematic flow diagram of an example of the method for transmission upstream data according to the embodiment of the present invention.
Fig. 3 is the schematic flow diagram of an example of the method sending upstream data according to another embodiment of the present invention.
Fig. 4 is the schematic block diagram of the terminal equipment according to the embodiment of the present invention.
Fig. 5 is the schematic block diagram of an example of terminal equipment according to the embodiment of the present invention.
Fig. 6 is the schematic block diagram of the communication system according to the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In addition, term " system " and " network " are often used interchangeably in this article herein.Term "and/or" herein, being only a kind of incidence relation describing affiliated partner, can there are three kinds of relations in expression, and such as, A and/or B, can represent: individualism A, exists A and B simultaneously, these three kinds of situations of individualism B.In addition, character "/" herein, general expression forward-backward correlation is to the relation liking a kind of "or".
Technical scheme of the present invention, various communication system can be applied to, such as: GSM, code division multiple access (CDMA, CodeDivisionMultipleAccess) system, Wideband Code Division Multiple Access (WCDMA) (WCDMA, WidebandCodeDivisionMultipleAccessWireless), GPRS (GPRS, GeneralPacketRadioService), Long Term Evolution (LTE, LongTermEvolution) etc.
Be in non-dedicated connection status (as idle, CELL_PCH, URA_PCH or CELL_FACH state etc.) at terminal equipment (such as but not limited to UE etc.), the embodiment of the present invention makes terminal equipment to select access style.
Selectable Stochastic accessing type can comprise Random Access Channel (RACH according to the difference of transmission channel; RandomAccessChannel) type and public enhancing dedicated channel (CommonE-DCH) type.Such as, this Stochastic accessing type also can be divided into R99 Physical Random Access Channel (PhysicalRandomAccessChannel, PRACH) access and R8 enhancing Random Access Channel (E-RACH, enhanceRACH) to access two types.Wherein R99PRACH accesses corresponding Random Access Channel (RACH) type, the corresponding commonE-DCH type of R8E-RACH.All be described for RACH type and commonE-DCH type in the description of subsequent embodiment.But the scope of the embodiment of the present invention is not limited thereto, can adopt other Stochastic accessing types according to actual needs, such as, CommonE-DCH type can according to TTI (TransmissionTimeInterval; Transmission Time Interval) length difference be further divided into 2msTTICommonE-DCH type and 10msTTICommonE-DCH type etc.These changes all fall in the scope of the embodiment of the present invention.
Although it should be noted that and hereinafter use UE GC group connector equipment, represent base station equipment with NodeB, the embodiment of the present invention is not limited to the standard representated by these terms.The embodiment of the present invention also can be applicable to other standards, and these changes all fall in the scope of the embodiment of the present invention.
Fig. 1 is the schematic flow diagram of the method for transmission upstream data according to the embodiment of the present invention.The method 10 of Fig. 1 performs primarily of terminal equipment (as UE).
As shown in Figure 1, in 11 of method 10, determine current traffic B and traffic carrying capacity threshold value A.
12, according to the relation determination Stochastic accessing type of current traffic B and traffic carrying capacity threshold value A.
Therefore, the embodiment of the present invention makes terminal equipment can according to current traffic carrying capacity and/or the ability of UE and/or the positional information etc. of UE, select suitable Stochastic accessing type, thus solve owing to being only confined to public enhancing dedicated channel or Random Access Channel type and the wasting of resources caused and delay, improve the utilization ratio of resource.
Fig. 2 is the schematic flow diagram of an example of the method for transmission upstream data according to the embodiment of the present invention.In the method for Fig. 2,11 is identical with 11 in Fig. 1, determines current traffic B and traffic carrying capacity threshold value A.
According to one embodiment of present invention, UE can receive the traffic carrying capacity threshold value A configured by network side, and such as traffic carrying capacity threshold value A passes through SIB (SystemInformationBlock by network side; System information block) or MC (MeasurementControl; Survey control) message and/or physical channel reconfiguration message (physicalchannelreconfiguration) and/or the state transition transmitting signaling downwards such as transmission channel reconfiguration message (Transportchannelreconfiguration) and/or radio bearer reconfiguration message (radiobearerreconfiguration) be to UE.Network side can send to UE when UE enters community or broadcast this traffic carrying capacity threshold value A, or notifies UE when other are suitable.Or UE can adopt the traffic carrying capacity threshold value A made an appointment, mutual now without the need to network side and UE, namely without the need to transmitting this traffic carrying capacity threshold value A on eating dishes without rice or wine.
The size that the determination of this threshold value A can send data volume according to the PRACH channel of current area is determined.For example, for 20msTTI, now UE can send at most 168bits or 360bits (bit).Namely threshold value A can be set to 168bits or 360bits.
Traffic carrying capacity B can indicate the type of service that UE is different in the above-described embodiments, the size of the packet that UE also can be indicated to send, or refers to the size of RLC buffer memory.Such as, when the type of service that traffic carrying capacity B sends for UE, threshold value A may correspond to and indicates in different types of service.Such as, transmission CCCH (CommonControlChannel can about be fixed on; Common Control Channel) signaling time, adopt RACH type.
21, judge whether B is less than A.If B < is A, then proceed to 22, select RACH type as described Stochastic accessing type.The parameter that now UE selection RACH resource is corresponding, as signature (signature), PRACH channel, accessslot (access slot), carries out multi-upstream access 24.
On the other hand, if B > is A or B=A, then proceed to 23, select CommonE-DCH type as described Stochastic accessing type.The parameter (signature/PRACH channel/accessslot) that now UE selection CommonE-DCH resource is corresponding, carries out multi-upstream access 24.
Alternatively, in the above example, if B=A, RACH type also can be selected as described Stochastic accessing type.Or when B=A, by UE from one of main separation RACH type and CommonE-DCH type as described Stochastic accessing type.Now, can prioritizing selection CommonE-DCH type.These changes all fall in the scope of the embodiment of the present invention.
25, judge that whether Stochastic accessing is successful.If success, then 26, this random access procedure terminates.In another embodiment of the invention, the resource that UE adopts Stochastic accessing to obtain performs the transmission of upstream data.
On the other hand, if Stochastic accessing is unsuccessful, then proceed to 27, increase progressively the number of times t of random access failure, the initial value of t can be set to 0.Then 28, judge t whether reach predetermined value k (k be positive integer 1,2,3..., such as can get k=3).K value can be similar to threshold value A above, is configured or adopt the value of making an appointment by network side.In another embodiment of the invention, the unsuccessful UE of referring to of Stochastic accessing receives ' NACK ' and/or UE at the feedback channel (AICH) of Stochastic accessing and reaches the number of times that in a circulation, (cycle) maximum power rises.
If judge t=k in 28, when namely attempting access k failure according to determined Stochastic accessing type (such as 22 or 23), then 29, change Stochastic accessing type, then get back to 24, according to the Stochastic accessing type after change, again perform Stochastic accessing.
If t does not also reach k in 28, then again attempt access according to determined Stochastic accessing type (22 or 23).
In the example of Fig. 2, different frequency of failure k values can be selected according to different situations, or the operation reached after certain random access failure number of times is changed.
Such as, for supporting the UE of commonE-DCH, access if UE have selected RACH resource, access simultaneously N time all unsuccessful, then after this UE can select commonE-DCH resource to access.
For the UE supporting commonE-DCH, the access of commonE-DCH also directly can be initiated when initial launching accesses.After access failure X time, whether UE can apply above-mentioned rule judgment according to current traffic carrying capacity B can initiate RACH access.
If UE have selected RACH resource and accesses, access M time all unsuccessful, UE again can attempt commonE-DCH resource and access.Here, the trial again of UE may be exit this random access procedure, new Stochastic accessing is initiated after Backoff time, also may be UE on the basis of original parameter, upper once send Preamble time change access style (such as: select the signature/PRACH channel that dissimilar resource is corresponding).In another embodiment of the invention, power that the initial power of initiating access adopted used for the last time when accessing last time (or this power increase by one be biased), the cycle of power ramp needs to cut original cycle time soaring number.
Here various k values (N, M, X etc.) can be configured by network side in the reconfiguration message of SIB/MC/ foregoing description, also can adopt the mode of UE and network side agreement, without the need to eating dishes without rice or wine to transmit.Above-mentioned change all falls in the scope of the embodiment of the present invention.
Fig. 2 gives the example of a threshold value.The embodiment of the present invention is not limited thereto, and traffic carrying capacity threshold value A can comprise two threshold value A1 and A2 (A1 >=A2).Now, following rule can be adopted to determine Stochastic accessing type:
Rule 1: as B < A2 or B≤A2, UE initiates the Stochastic accessing for RACH type.
Rule 2: as B > A1 or B >=A1, UE initiates the Stochastic accessing for commonE-DCH type.
Rule 3: when B (may comprise A1 or A2 between A1 and A2, such as A2≤B≤A1 or A2 < B≤A1 or A2≤B < A1 or A2 < B < A1) time, UE can initiate the Stochastic accessing for RACH type, also can initiate the Stochastic accessing for commonE-DCH type.
In the case, random access failure number of times can be considered similarly equally, Stochastic accessing type is changed.In another embodiment of the invention, in the process of Stochastic accessing number of times here and above-mentioned Fig. 2, the process of 27-28 is similar.
In addition, in above-mentioned regular 3, UE prioritizing selection commonE-DCH type can carry out Stochastic accessing.
Equally, when B=A2 or B=A1, UE can determine that described Stochastic accessing type is RACH type or commonE-DCH type, or prioritizing selection commonE-DCH type carries out Stochastic accessing.
And the traffic carrying capacity threshold value A of the embodiment of the present invention can also comprise more threshold value.Above-mentioned change all falls in the scope of the embodiment of the present invention.
Fig. 3 is the schematic flow diagram of an example of the method sending upstream data according to another embodiment of the present invention.The 11-12 of 11-12 and the Fig. 1 in the method for Fig. 3 is similar, therefore no longer repeated description.Difference is, the method for Fig. 3 also comprises the steps.
31, UE determines whether to support access style rollback.Although 31 perform after 12 in Fig. 3,31 also can perform before 11 or 12, or performed with 11 or 12 simultaneously.
32, send the ability information representing and whether support access style rollback to NodeB, carry out resource distribution to make NodeB according to ability information.Signature, PRACHPSC (PrimaryScramblingCode can be passed through; Main scrambler), the information such as accessslot carries this ability information.
In another embodiment of the invention, this ability information can refer to whether UE supports access style rollback, also can refer to that UE judges whether the rollback needing to perform access style according to the service conditions of self.If UE supports the rollback of access style, and judge the rollback that can perform access style according to the service conditions of self, then UE can support the rollback of access style to network side instruction by said method.If UE does not have the ability supporting access style rollback, but or UE have and support that the ability UE of access style rollback judges to perform the rollback of access style according to the service conditions of self, then UE does not report the ability of the rollback supporting access style.Such as, UE judges to refer to that UE judges whether to select RACH to carry out the transmission of upstream data bag according to above-mentioned traffic carrying capacity threshold value A (A1, A2) according to the service conditions of self here.Such as: if B < is A (A2 < B < A1), then UE can perform the rollback of access style; If B > is A (B > A1), then UE cannot perform the rollback of access style.
In order to ensure backwards compatibility, when by SIB message arrangement commonE-DCH resource, commonE-DCH resource can be divided into two parts by network side.One of them part is that the resource of UE without the need to carrying out access style selection (do not have rollback ability, or have rollback ability but this time access is not supported or do not need rollback) configures according to existing mode.Another part is (support rollback ability for the UE that access style may be needed to select, or the ability that UE has rollback simultaneously judges to need the UE of rollback according to above-mentioned threshold value A or A1 or A2) resource/access parameter expand, such as add " extendedcommonE-DCHsysteminfo " (expansion commonE-DCH system information).If UE judges to need the rollback carrying out access style according to current traffic carrying capacity, then need the access parameter selecting to configure in extendedcommonE-DCHsysteminfo during Stochastic accessing.Comprise NodeB in extendedcommonE-DCHsysteminfo and may distinguish the parameter whether UE support or need rollback, such as signature/PRACHPSC/accessslot etc.The parameter of other resources is still in commonE-DCHsysteminfo.The configuration mode of the embodiment of the present invention is not limited to above-mentioned example.
33, UE monitors rollback indication information, and such as (instruction is caught in enhancing to EAI; Or down physical channel (the such as AICH of instruction UE rollback EnhancedAcquisitionIndicator), absolute grant channel (E-AGCH, or Relative Grant Channels (E-RACH E-AGCHE-DCHAbsoluteGrantChannelE-DCH), E-RGCHE-DCHRelativeGrantChannelE-DCH), or newly-increased rollback indicating channel) upper other rollback indication informations sent, the capable explanation of example in the following embodiments using EAI as rollback indication information.
Such as, UE can be commonE-DCH type in determined Stochastic accessing type and Stochastic accessing is rejected time, i.e. AICH (AcquisitionIndicatorChannel; AICH Acquisition Indication Channel) be NACK (NegativeAcknowledgement; The confirmation of negative) time, monitor rollback indication information.
Alternatively, as another embodiment, when UE has the ability supporting access style rollback, UE can judge whether according to service conditions the rollback performing type of service.When being judged as according to service conditions needing to carry out access style rollback, send the information expressing support for access style rollback to base station equipment, so that base station equipment issues rollback indication information according to this information.The information expressing support for access style rollback that base station equipment can send according to UE produces this rollback indication information, also can consider own service situation, judges whether to agree to that UE carries out access style rollback.
Or, if UE does not support access style rollback, or although UE supports access style rollback but is judged as not needing the rollback of execution type of service according to service conditions, then UE can send to base station equipment the information representing and do not support access style rollback, or also can not send any information to base station.
34, UE determines according to rollback indication information (such as EAI) type again performing Stochastic accessing.If EAI is NACK, then UE exits random access procedure.If EAI indicates access style rollback, such as EAI is set to demote (" leveldown ") or retry (" RetrytoR99 "), then UE when upper once (consider the frequency of failure, can be N time below) Stochastic accessing or send next time (lower N time) preamble (leading) time change Stochastic accessing type, RACH resource is such as selected to carry out Stochastic accessing or the commonE-DCH resource at selection 2msTTI, when receiving " leveldown ", select the commonE-DCH access style of 10msTTI.Or UE judges whether still to need rollback according to the relation of current traffic carrying capacity and above-mentioned threshold value again, if UE does not need rollback, ignores rollback indication information, continue to initiate access according to original Stochastic accessing type.If UE needs rollback, then perform back off procedure according to the instruction of NodeB, change the type of original Stochastic accessing.
In another embodiment of the invention, UE determines according to above-mentioned rollback indication information the type again performing Stochastic accessing.If above-mentioned rollback indication information is for forbidding that rollback or UE do not receive rollback indication information, then UE continues former selectable Stochastic accessing type execution random access procedure.If above-mentioned rollback indication information is access style rollback, such as EAI is set to demote (" leveldown ") or retry (" RetrytoR99 "), then UE when upper once (consider the frequency of failure, can be N time below) Stochastic accessing or send next time (lower N time) preamble time change Stochastic accessing type, RACH resource is such as selected to carry out Stochastic accessing or the commonE-DCH resource at selection 2msTTI, when receiving " leveldown ", select the commonE-DCH access style of 10msTTI.
Alternatively, if UE have selected commonE-DCH, resource accesses, and AICH is NACK, then UE selects RACH resource to carry out Stochastic accessing at once upper/N Stochastic accessing/preamble when sending.
Any one that wherein can adopt current 32 indicating bits of EAI is as " leveldown " or " RetrytoR99 ".Such as, " leveldown " or " RetrytoR99 " can replace current " NACK " position.
In another embodiment of the invention, first UE can select a kind of Stochastic accessing type (such as: commonE-DCH) to perform up Stochastic accessing, after receiving the rollback indication information in step 33, if this rollback indication information instruction UE access style rollback, UE can also judge whether to need rollback according to the traffic carrying capacity threshold value in the embodiment of Fig. 1 and Fig. 2.If traffic carrying capacity lower (such as: lower than the threshold value A in above-described embodiment or A1/A2), UE performs the rollback of access style.If the traffic carrying capacity B of UE is higher than threshold value A or A1 or A2, then UE continues the Stochastic accessing performing original access style (such as: commonE-DCH).
In another embodiment of the invention, first UE can select a kind of Stochastic accessing type (such as: commonE-DCH), when UE is according to whether supporting that the ability of access style rollback and the current traffic carrying capacity of UE determine whether to need to change this Stochastic accessing type selected in advance.Such as, when the packet that this Stochastic accessing sends also can be sent by other access styles (such as: RACH accesses), UE selects (reserved) signature/PRACHPSC/accessslot retained in order to support the rollback of access style to network side instruction UE.The access information of UE detected at NodeB after, NodeB can send rollback indication information to UE, completes the rollback of access style.
Namely the rollback of Stochastic accessing type can refer to the change of commonE-DCH to RACH access style in the above-described embodiments, also can refer to the change of RACH to commonE-DCH access style.
Described above is the different examples of the method for the initiation Stochastic accessing according to embodiment of the present invention mode, but the embodiment of the present invention is not limited to shown object lesson.Such as, these examples can be combined, consider 2 threshold values and EAI instruction simultaneously.
Traffic carrying capacity can indicate the type of service that UE is different in the above-described embodiments, the size of the packet that UE also can be indicated to send, or refers to the size of RLC buffer memory.
In addition, when selecting Stochastic accessing type, except current traffic B, the embodiment of the present invention can further consider the position of UE.Such as, for supporting the UE that access style is selected, when UE is in cell edge, the trial of RACH access can be paid the utmost attention to.
One as terminal location represents parameter, can adopt circuit loss value (pathloss).Network side is now needed to configure the threshold value of pathloss.Then pay the utmost attention to RACH type when the lower UE of traffic carrying capacity is in cell edge, otherwise pay the utmost attention to commonE-DCH type.
In addition, although above merely depict a kind of commonE-DCH type, the embodiment of the present invention is not limited thereto.Can also segment commonE-DCH type, such as, be divided into 2mscommonE-DCH type and 10mscommonE-DCH type.Increase that type establishes rules really then can be similar with each example recited above, such as increase corresponding threshold value, can the embodiment of the present invention be suitable for equally.For avoiding repetition, repeat no more.
Therefore, the embodiment of the present invention according to parameters such as the traffic carrying capacity of UE and/or pathloss, can be determined suitable multi-upstream access type, thus improves resource utilization and UE upstream data transmitting efficiency.
Fig. 4 is the schematic block diagram of the terminal equipment according to the embodiment of the present invention.The terminal equipment 40 of Fig. 4 comprises determining unit 41 and access unit 42.
Determining unit 41 is for determining current traffic and traffic carrying capacity threshold value.
Access unit 42 is for the relation determination Stochastic accessing type according to current traffic and traffic carrying capacity threshold value.
The embodiment of the present invention makes terminal equipment can according to current traffic carrying capacity etc., select suitable Stochastic accessing type, thus solve owing to being only confined to public enhancing dedicated channel type or Random Access Channel type and the wasting of resources caused and delay, improve the utilization ratio of resource.
Fig. 5 is the schematic block diagram of an example of terminal equipment according to the embodiment of the present invention.In the terminal equipment 50 of Fig. 5, with part same or analogous in Fig. 4, use same or analogous Reference numeral, and suitably omit its detailed description.
The determining unit 41 ' of terminal equipment 50 is for determining current traffic and traffic carrying capacity threshold value.When needs use multiple threshold value, determining unit 41 ' can determine this multiple threshold value.Such as, be similar to example recited above, determining unit 41 ' determines the first threshold value and the second threshold value, and wherein the second threshold value is less than or equal to the first threshold value.
Access unit 42 ' is according to the relation determination Stochastic accessing type of current traffic and traffic carrying capacity threshold value.Such as, when current traffic is greater than traffic carrying capacity threshold value, determine that described Stochastic accessing type is public enhancing dedicated channel type; When current traffic is less than traffic carrying capacity threshold value, determine that described Stochastic accessing type is Random Access Channel type; When current traffic equals traffic carrying capacity threshold value, determine that described Stochastic accessing type is Random Access Channel type or public enhancing dedicated channel type.
When employing two threshold values, access unit 42 ' when current traffic is greater than the first threshold value, can determine that described Stochastic accessing type is public enhancing dedicated channel type; When current traffic is less than described second threshold value, determine that described Stochastic accessing type is Random Access Channel type; When current traffic is between the first threshold value and the second threshold value, determine that described Stochastic accessing type is Random Access Channel type or public enhancing dedicated channel type.
In addition, when considering the frequency of failure, access unit 42 ' is also for when attempting access k failure according to determined Stochastic accessing type, change Stochastic accessing type, wherein k is positive integer.
Terminal equipment 50 also comprises indicating member 51 and/or monitoring unit 52.
Indicating member 51 supports access style rollback for determining whether, and the information representing and whether support access style rollback is sent to base station equipment, resource distribution is carried out (such as according to this information to make base station equipment, distribute " extendedcommonE-DCHsysteminfo " or " commonE-DCHsysteminfo ") or send rollback indication information, such as base station equipment is when receiving the information representing terminal equipment support access style rollback, determine whether to agree to rollback, and in rollback indication information, carry the instruction whether agreeing to rollback.
Such as, indicating member 51 is when terminal equipment 50 has the ability supporting access style rollback, the rollback performing type of service is judged whether according to service conditions, when being judged as the rollback not needing to perform access style, the information representing and do not support access style rollback is sent to base station equipment, or, when being judged as the rollback needing to perform access style, send the information expressing support for access style rollback to base station equipment.Alternatively, indicating member 51 can determine whether to need to change the Stochastic accessing type selected in advance according to current traffic, when being defined as needing to change the Stochastic accessing type selected in advance, is judged as the rollback performing type of service.
Monitoring unit 52 can receive the rollback indication information that base station equipment sends according to the information expressing support for access style rollback.Now, access unit 42 ' completes the rollback of access style according to rollback indication information.
Alternatively, in another embodiment, monitoring unit 52, for when determined Stochastic accessing type is public enhancing dedicated channel type and Stochastic accessing is rejected, monitors rollback indication information, such as EAI.In the case, access unit 42 ' is also for determining according to rollback indication information the type again performing Stochastic accessing.
In addition, when considering terminal location, access unit 42 ' is for determining Stochastic accessing type according to the relation of current traffic and traffic carrying capacity threshold value according to the position of terminal equipment 50.
The respective rule in each method described above can also being performed according to the terminal equipment 50 of the embodiment of the present invention, for avoiding repetition, repeating no more.The concrete function of described terminal equipment 50 and its module comprised or unit and the course of work, with reference to the detailed process of aforementioned terminals device, method embodiment, can not repeat them here.
Fig. 6 is the schematic block diagram of the communication system according to the embodiment of the present invention.The communication system 60 of Fig. 6 comprises base station equipment 61 and terminal equipment 62.
Terminal equipment 62 can be the terminal equipment 40 of Fig. 4 or the terminal equipment 50 of Fig. 5.
The embodiment of the present invention makes terminal equipment according to current traffic carrying capacity, can select suitable Stochastic accessing type, thus solves the wasting of resources and delay that cause owing to being only confined to public enhancing dedicated channel type, improves the utilization ratio of resource.
The various piece of communication system 60 can perform the respective process in each method recited above, for avoiding repetition, repeats no more.Such as, when whether terminal equipment 62 supports the information of access style rollback to base station equipment 61 transmission expression terminal equipment 62, base station equipment 61 receives this information, and carry out resource distribution (such as, distributing " extendedcommonE-DCHsysteminfo " or " commonE-DCHsysteminfo ") according to this information or send rollback indication information.
The concrete function of base station equipment 61 and the course of work, with reference to the detailed process relating to base station equipment in preceding method embodiment, can not repeat them here.
Those of ordinary skill in the art can recognize, in conjunction with unit and the algorithm steps of each example of embodiment disclosed herein description, can realize with electronic hardware, computer software or the combination of the two, in order to the interchangeability of hardware and software is clearly described, generally describe composition and the step of each example in the above description according to function.These functions perform with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can use distinct methods to realize described function to each specifically should being used for, but this realization should not thought and exceeds scope of the present invention.
Those skilled in the art can be well understood to, and for convenience and simplicity of description, the specific works process of the system of foregoing description, device and unit, with reference to the corresponding process in preceding method embodiment, can not repeat them here.
In several embodiments that the application provides, should be understood that disclosed system, apparatus and method can realize by another way.Such as, device embodiment described above is only schematic, such as, the division of described unit, be only a kind of logic function to divide, actual can have other dividing mode when realizing, such as multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, and the indirect coupling of device or unit or communication connection can be electrical, machinery or other form.
The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, also can be that the independent physics of unit exists, also can two or more unit in a unit integrated.Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form of SFU software functional unit also can be adopted to realize.
If described integrated unit using the form of SFU software functional unit realize and as independently production marketing or use time, can be stored in a computer read/write memory medium.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words or all or part of of this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, read-only memory (ROM, Read-OnlyMemory), random access memory (RAM, RandomAccessMemory), magnetic disc or CD etc. various can be program code stored medium.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection range of claim.
Claims (29)
1. a method for Stochastic accessing, is characterized in that, comprising:
Determine current traffic and traffic carrying capacity threshold value;
According to the relation determination Stochastic accessing type of described current traffic and traffic carrying capacity threshold value;
Wherein, described method also comprises:
Receive the rollback indication information that base station equipment sends;
The type again performing Stochastic accessing is determined according to described rollback indication information.
2. the method for claim 1, is characterized in that, describedly determines that traffic carrying capacity threshold value comprises:
Receive the traffic carrying capacity threshold value configured by network side, or adopt the traffic carrying capacity threshold value of making an appointment.
3. the method for claim 1, is characterized in that, the relation determination Stochastic accessing type according to described current traffic and traffic carrying capacity threshold value comprises:
When described current traffic is greater than described traffic carrying capacity threshold value, determine that described Stochastic accessing type is public enhancing dedicated channel type; Or,
When described current traffic is less than described traffic carrying capacity threshold value, determine that described Stochastic accessing type is Random Access Channel type; Or,
When described current traffic equals described traffic carrying capacity threshold value, determine that described Stochastic accessing type is Random Access Channel type or public enhancing dedicated channel type.
4. the method for claim 1, is characterized in that, describedly determines that traffic carrying capacity threshold value comprises:
Determine the first threshold value;
Determine the second threshold value, wherein said second threshold value is less than or equal to described first threshold value,
Wherein, comprise according to the relation determination Stochastic accessing type of described current traffic and traffic carrying capacity threshold value:
When described current traffic is greater than described first threshold value, determine that described Stochastic accessing type is public enhancing dedicated channel type; Or,
When described current traffic is less than described second threshold value, determine that described Stochastic accessing type is Random Access Channel type; Or,
When described current traffic is less than or equal to described first threshold value and is more than or equal to described second threshold value, determine that described Stochastic accessing type is Random Access Channel type or public enhancing dedicated channel type.
5. the method as described in claim 3 or 4, is characterized in that, determines that described Stochastic accessing type comprises for Random Access Channel type or public enhancing dedicated channel type: public enhancing dedicated channel type described in prioritizing selection.
6. the method for claim 1, is characterized in that, also comprises:
When attempting access k failure according to determined Stochastic accessing type, change Stochastic accessing type, wherein k is positive integer.
7. method as claimed in claim 6, is characterized in that, also comprise:
Receive the k value configured by network side, or adopt the k value of making an appointment.
8. the method for claim 1, is characterized in that, also comprises:
Determine whether to support access style rollback;
Send the information representing and whether support access style rollback to described base station equipment, carry out resource distribution to make described base station equipment according to described information.
9. method as claimed in claim 8, is characterized in that, sends to represent whether support that the information of access style rollback comprises to described base station equipment:
The information whether described expression supports access style rollback is carried in signing messages, the main scrambler of Physical Random Access Channel or access slot information.
10. method as claimed in claim 8, is characterized in that, when having the ability supporting access style rollback, describedly sends to represent whether support that the information of access style rollback comprises to described base station equipment:
The rollback performing access style is judged whether according to service conditions;
When being judged as the rollback not needing to perform access style, the information representing and do not support access style rollback is sent to described base station equipment, or, when being judged as the rollback needing to perform access style, send the information expressing support for access style rollback to described base station equipment.
11. methods as claimed in claim 10, is characterized in that, describedly judge whether that performing the rollback of access style comprises according to service conditions:
Determine whether to need to change the Stochastic accessing type selected in advance according to described current traffic;
When being defined as needing to change the Stochastic accessing type selected in advance, be judged as the rollback performing access style.
12. methods as claimed in claim 10, is characterized in that, the rollback indication information that described reception base station equipment sends comprises:
Receive described base station equipment according to described in express support for access style rollback information send rollback indication information;
Describedly determine that the type again performing Stochastic accessing comprises according to described rollback indication information:
The rollback of access style is completed according to described rollback indication information.
13. methods as claimed in claim 10, is characterized in that, the described information expressing support for access style rollback to described base station equipment transmission, comprising:
The ability information of described support access style rollback is carried in the signing messages retained, the main scrambler of Physical Random Access Channel or access slot information.
14. the method for claim 1, is characterized in that, the rollback indication information that described reception base station equipment sends comprises:
When determined Stochastic accessing type is public enhancing dedicated channel type and Stochastic accessing is rejected, monitor rollback indication information.
15. methods as claimed in claim 14, is characterized in that, determine that the type again performing Stochastic accessing comprises according to described rollback indication information:
When described rollback indication information instruction access style rollback, change performs the type of Stochastic accessing again.
16. methods as claimed in claim 15, is characterized in that, described rollback indication information is that instruction EAI is caught in enhancing.
17. methods as claimed in claim 16, is characterized in that, described EAI instruction degradation or retry.
18. the method for claim 1, is characterized in that, the relation determination Stochastic accessing type according to described current traffic and traffic carrying capacity threshold value comprises:
Stochastic accessing type is determined according to the relation of described current traffic and traffic carrying capacity threshold value according to the position of terminal equipment.
19. 1 kinds of terminal equipments, is characterized in that, comprising:
Determining unit, for determining current traffic and traffic carrying capacity threshold value;
Access unit, for the relation determination Stochastic accessing type according to described current traffic and traffic carrying capacity threshold value;
Monitoring unit, for receiving the rollback indication information that base station equipment sends;
Described access module, also for determining according to described rollback indication information the type again performing Stochastic accessing.
20. terminal equipments as claimed in claim 19, is characterized in that, described access unit:
When described current traffic is greater than described traffic carrying capacity threshold value, determine that described Stochastic accessing type is public enhancing dedicated channel type;
When described current traffic is less than described traffic carrying capacity threshold value, determine that described Stochastic accessing type is Random Access Channel type;
When described current traffic equals described traffic carrying capacity threshold value, determine that described Stochastic accessing type is Random Access Channel type or public enhancing dedicated channel type.
21. terminal equipments as claimed in claim 19, is characterized in that,
Described determining unit:
Determine the first threshold value;
Determine the second threshold value, wherein said second threshold value is less than or equal to described first threshold value,
Described access unit:
When described current traffic is greater than described first threshold value, determine that described Stochastic accessing type is public enhancing dedicated channel type;
When described current traffic is less than described second threshold value, determine that described Stochastic accessing type is Random Access Channel type;
When described current traffic is less than or equal to described first threshold value and is more than or equal to described second threshold value, determine that described Stochastic accessing type is Random Access Channel type or public enhancing dedicated channel type.
22. terminal equipments as claimed in claim 19, is characterized in that,
Described access unit, also for when attempting access k failure according to determined Stochastic accessing type, change Stochastic accessing type, wherein k is positive integer.
23. terminal equipments as claimed in claim 19, is characterized in that, also comprise:
Indicating member, supports access style rollback for determining whether, and sends the information representing and whether support access style rollback to base station equipment.
24. terminal equipments as claimed in claim 23, is characterized in that,
Described indicating member, for having the ability supporting access style rollback at described terminal equipment, the rollback performing access style is judged whether according to service conditions, when being judged as the rollback not needing to perform access style, the information representing and do not support access style rollback is sent to base station equipment, or, when being judged as the rollback needing to perform access style, send the information expressing support for access style rollback to base station equipment.
25. terminal equipments as claimed in claim 24, is characterized in that,
Described monitoring unit, specifically for receive described base station equipment according to described in express support for access style rollback information send rollback indication information,
Described access unit, specifically for completing the rollback of access style according to described rollback indication information.
26. terminal equipments as claimed in claim 19, is characterized in that,
Described monitoring unit, specifically for when determined Stochastic accessing type is public enhancing dedicated channel type and Stochastic accessing is rejected, monitors rollback indication information.
27. terminal equipments as claimed in claim 19, is characterized in that,
Described access unit, for determining Stochastic accessing type according to the position of terminal equipment according to the relation of described current traffic and traffic carrying capacity threshold value.
28. 1 kinds of communication systems, is characterized in that, comprise the terminal equipment according to any one of claim 19-27, and described terminal equipment communicates with a base station equipment.
29. communication systems as claimed in claim 28, is characterized in that,
Described base station equipment, receives and represents whether described terminal equipment supports the information of access style rollback;
Described base station equipment, according to the described information whether supporting access style rollback, carries out resource distribution or sends rollback indication information to described terminal equipment.
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| CN201110224472.1A CN102740495B (en) | 2011-04-02 | 2011-08-05 | The method of Stochastic accessing, terminal equipment and communication system |
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| CN104429146B (en) * | 2013-05-27 | 2017-12-29 | 华为技术有限公司 | Connection control method, user equipment and radio network controller |
| CN107690200B (en) * | 2016-08-05 | 2019-12-10 | 电信科学技术研究院 | random access method and terminal |
| CN107734559B (en) * | 2016-08-10 | 2023-05-23 | 中兴通讯股份有限公司 | Wireless access method, device and system |
| CN110167187B (en) * | 2018-02-13 | 2021-08-17 | 展讯通信（上海）有限公司 | Method, device and readable medium for configuring LBT policy in unlicensed spectrum |
| CN111869306B (en) * | 2018-08-01 | 2021-11-16 | Oppo广东移动通信有限公司 | Random access method, terminal equipment and network equipment |
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| CN101616488A (en) * | 2008-06-23 | 2009-12-30 | 华为技术有限公司 | The control method that a kind of enhancing inserts at random, Apparatus and system |
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| EP1758318A2 (en) * | 2005-08-23 | 2007-02-28 | NTT DoCoMo Inc. | Transmission rate control method, mobile station, radio base station and radio network controller |
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