CN102740495A - Random access method, terminal equipment and communication system - Google Patents
Random access method, terminal equipment and communication system Download PDFInfo
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- CN102740495A CN102740495A CN2011102244721A CN201110224472A CN102740495A CN 102740495 A CN102740495 A CN 102740495A CN 2011102244721 A CN2011102244721 A CN 2011102244721A CN 201110224472 A CN201110224472 A CN 201110224472A CN 102740495 A CN102740495 A CN 102740495A
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Abstract
The embodiment of the invention provides a random access method, terminal equipment and communication system. The method comprises the steps of determining the current traffic and a traffic threshold value; and determining a random access type according to the relation between the current traffic and the traffic threshold value. According to the method provided by the embodiment of the invention, the terminal equipment can select an appropriate random access type according to the current traffic and the like, thereby avoiding the waste of resources and the delay caused by the situation which is only limited to the type of public enhancement private channels or the type of random access channels, and improving the utilization efficiency of resources.
Description
The application requires the priority to the application for a patent for invention 201110084143.1 that is entitled as " method, terminal equipment and the communication system that insert at random " of State Intellectual Property Office's submission on April 2nd, 2011.
Technical field
The embodiment of the invention relates to wireless communication field, and more specifically, relates to the method, terminal equipment and the communication system that insert at random.
Background technology
According to the regulation of present agreement, as UE (User Equipment; Subscriber equipment) and UTRAN (Terrestrial Radio Access Network; Land radio access web) all supports Common E-DCH (Common Enhanced-Dedicated Channel; Public enhancing dedicated channel) time, is in the user of non-special-purpose connected state,, can only competes Common E-DCH resource and carry out the transmission of follow-up data no matter send the size of business data packet.
Along with idle (free time), CELL_FACH (CELL Forward Access Channel; Cell forward access channel), CELL_PCH (CELL Paging Channel; The cell paging channel), URA_PCH (UTRAN Registration Area Paging Channel; UTRAN Acceditation Area PCH) application of non-dedicated connection status such as state more and more widely uses the number of users of non-dedicated connection status also to increase gradually.If if support that in a sub-district user of Common E-DCH is more, but these users still can only insert Common E-DCH resource, can cause the waste of resource and the delay that packet sends, influence communication quality, and then influence user's impression.
Summary of the invention
The embodiment of the invention provides a kind of method, terminal equipment and communication system that inserts at random, can improve the level of resources utilization.
On the one hand, a kind of method that inserts at random is provided, has comprised: confirm current business amount and traffic carrying capacity threshold value; Relation according to current business amount and traffic carrying capacity threshold value is confirmed access style at random.
On the other hand, a kind of terminal equipment is provided, has comprised: confirmed the unit, be used for confirming current business amount and traffic carrying capacity threshold value; Access unit is used for confirming access style at random according to the relation of current business amount and traffic carrying capacity threshold value.
On the other hand, a kind of communication system is provided, has comprised base station equipment and above-mentioned terminal equipment.
The embodiment of the invention makes terminal equipment to select suitable access style at random according to current traffic carrying capacity, thereby has solved owing to only being confined to the wasting of resources and the delay that public enhancing dedicated channel type causes, and has improved efficiency of resource.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic flow diagram according to the method for the transmission upstream data of the embodiment of the invention.
Fig. 2 is the schematic flow diagram according to an example of the method for the transmission upstream data of the embodiment of the invention.
Fig. 3 is the schematic flow diagram of an example that sends the method for upstream data according to another embodiment of the present invention.
Fig. 4 is the schematic block diagram according to the terminal equipment of the embodiment of the invention.
Fig. 5 is the schematic block diagram according to an example of the terminal equipment of the embodiment of the invention.
Fig. 6 is the schematic block diagram according to the communication system of the embodiment of the invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
In addition, among this paper term " system " and " network " in this article often by interchangeable use.Term among this paper " and/or ", only be a kind of incidence relation of describing affiliated partner, can there be three kinds of relations in expression, for example, and A and/or B, can represent: individualism A exists A and B, these three kinds of situation of individualism B simultaneously.In addition, character "/" among this paper, generally represent forward-backward correlation to as if a kind of " or " relation.
Technical scheme of the present invention can be applied to various communication systems, for example: GSM; Code division multiple access (CDMA, Code Division Multiple Access) system, WCDMA (WCDMA; Wideband Code Division Multiple Access Wireless), GPRS (GPRS, General Packet Radio Service); Long Term Evolution (LTE, Long Term Evolution) etc.
(such as but not limited to UE etc.) is in non-dedicated connection status (like idle, CELL_PCH, URA_PCH or CELL_FACH state etc.) at terminal equipment, and the embodiment of the invention makes terminal equipment can select access style.
Selectable access style at random can comprise RACH (RACH according to the difference of transmission channel; Random Access Channel) type and public enhancing dedicated channel (CommonE-DCH) type.For example, this at random access style also can be divided into the R99 Physical Random Access Channel (Physical Random Access Channel PRACH) inserts and two types of R8 enhanced random access channel (E-RACH, enhance RACH) accesses.Wherein R99 PRACH inserts corresponding RACH (RACH) type, the corresponding common E-DCH of R8 E-RACH type.In the description of subsequent implementation example is that example is described with RACH type and common E-DCH type all.But the scope of the embodiment of the invention is not limited thereto, and can adopt other access styles at random according to actual needs, and for example, Common E-DCH type can be according to TTI (Transmission Time Interval; Transmission Time Interval) length difference further is divided into 2ms TTI Common E-DCH type and 10ms TTICommon E-DCH type etc.These variations all fall in the scope of the embodiment of the invention.
Though it should be noted that and hereinafter use UE GC group connector equipment, represent base station equipment with Node B, the embodiment of the invention is not limited to the standard of these term representatives.The embodiment of the invention also can be applicable to other standards, and these variations all fall in the scope of the embodiment of the invention.
Fig. 1 is the schematic flow diagram according to the method for the transmission upstream data of the embodiment of the invention.The method 10 of Fig. 1 is mainly carried out by terminal equipment (like UE).
As shown in Figure 1, in 11 of method 10, confirm current business amount B and traffic carrying capacity threshold value A.
12, confirm access style at random according to the relation of current business amount B and traffic carrying capacity threshold value A.
Therefore; The embodiment of the invention makes that terminal equipment can be according to the ability of current traffic carrying capacity and/or UE and/or the positional information of UE etc.; Select suitable access style at random; Thereby solved owing to only being confined to the wasting of resources and the delay that public enhancing dedicated channel or RACH type cause, improved efficiency of resource.
Fig. 2 is the schematic flow diagram according to an example of the method for the transmission upstream data of the embodiment of the invention.In the method for Fig. 2 11 with Fig. 1 in 11 identical, confirm current business amount 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 by the network side configuration, and for example traffic carrying capacity threshold value A passes through SIB (System Information Block by network side; System information block) or MC (Measurement Control; Measurement control) message and/or physical channel reconfiguration message (physical channel reconfiguration) and/or transmission channel reconfiguration message (Transportchannel reconfiguration) and/or radio bearer reconfiguration message state transition transmitting signaling downwards such as (radio bearerreconfiguration) are given UE.Network side can send or broadcast this traffic carrying capacity threshold value A to UE when UE gets into the sub-district, perhaps notice UE when other are suitable.Perhaps UE can adopt the traffic carrying capacity threshold value A that makes an appointment, and need not the mutual of network side and UE this moment, promptly need not on eating dishes without rice or wine, to transmit this traffic carrying capacity threshold value A.
The size that can send data volume according to the PRACH channel of current area of confirming of this threshold value A is confirmed.For instance, to 20ms TTI, this moment, UE can send 168bits or 360bits (bit) at most.Be that threshold value A can be set to 168bits or 360bits.
Traffic carrying capacity B can indicate the UE different business types in the above-described embodiments, also can indicate the size of the packet of UE transmission, perhaps refers to the size of RLC buffer memory.For example, under the situation of the type of service that traffic carrying capacity B sends to UE, threshold value A can indicate corresponding to different business types.For example, can fix on transmission CCCH (Common Control Channel approximately; CCCH) during signaling, adopts the RACH type.
21, judge that whether B is less than A.If B＜A then advances to 22, select the RACH type as said access style at random.This moment, UE selected RACH resource corresponding parameters, like signature (signature), PRACH channel, access slot (access slot), carried out up access 24.
On the other hand, if B＞A or B=A then advance to 23, select Common E-DCH type as said access style at random.This moment, UE selected Common E-DCH resource corresponding parameters (signature/PRACH channel/access slot), carried out up access 24.
Replacedly, in the above example, if B=A also can select the RACH type as said access style at random.Perhaps when B=A, independently select one of RACH type and CommonE-DCH type as said access style at random by UE.At this moment, can preferentially select Common E-DCH type.These variations all fall in the scope of the embodiment of the invention.
25, judge whether access at random is successful.If success, then 26, this random access procedure finishes.In another embodiment of the present invention, UE adopts and inserts the transmission that the resource that obtains is carried out upstream data at random.
On the other hand, if insert unsuccessfully at random, then advance to 27, the number of times t of access failure is at random increased progressively, the initial value of t can be set to 0.28, judge whether t reaches predetermined value k (k is positive integer 1,2,3..., for example can get k=3) then.The k value can be similar to top threshold value A, perhaps adopts the value of making an appointment by the network side configuration.In another embodiment of the present invention, insert the unsuccessful UE that is meant at random and receive ' NACK ' and/or UE reaches the number of times that (cycle) maximum power rises a circulation at the feedback channel (AICH) that inserts at random.
If in 28, judge t=k, when promptly attempting inserting k failure,, change access style at random then 29 according to determined access style at random (for example 22 or 23), get back to 24 then, according to the access style at random after the change, carry out access at random once more.
If t does not also reach k in 28, then attempt once more inserting according to determined access style at random (22 or 23).
In the example of Fig. 2, can select different frequency of failure k values for use according to different situations, perhaps the operation afterwards of access failure number of times changes for reaching necessarily at random.
For example, to the UE that supports common E-DCH, resource inserts if UE has selected RACH, inserts N all not success simultaneously, and then after this UE can select common E-DCH resource to insert.
To the UE that supports common E-DCH,, initial initiation also can directly initiate the access of common E-DCH when inserting.Behind access failure X time, whether UE can use above-mentioned rule judgment according to current traffic carrying capacity B can initiate the RACH access.
Resource inserts if UE has selected RACH, inserts M all not success, and UE can attempt common E-DCH resource once more and insert.Here; The trial once more of UE possibly be to withdraw from this random access procedure; Initiate new access at random after time at rollback; Also possibly be UE on the basis of original parameter, change access style when next time sending Preamble (for example: select the corresponding signature/PRACH channel of dissimilar resources).In another embodiment of the present invention, the initial power of initiating to insert adopts the last power that uses (perhaps this power increases a biasing) when inserting last time, and the cycle of power ramp need cut original cycle time soaring number.
The various k values (N, M, X etc.) here 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, need not in the transmission of eating dishes without rice or wine.Above-mentioned variation all falls in the scope of the embodiment of the invention.
Fig. 2 has provided the example of a threshold value.The embodiment of the invention is not limited thereto, and traffic carrying capacity threshold value A can comprise two threshold value A1 and A2 (A1 >=A2).At this moment, can adopt following rule to confirm access style at random:
Rule 1: when B＜A2 or B≤A2, UE initiates the access at random to the RACH type.
Rule 2: when B＞A1 or B >=A1, UE initiates the access at random to common E-DCH type.
Rule 3: when B (possibly comprise A1 or A2 between A1 and A2; For example when A2≤B≤A1 or A2＜B≤A1 or A2≤B＜A1 or A2＜B＜A1); UE can initiate the access at random to the RACH type, also can initiate the access at random to common E-DCH type.
In the case, can consider access failure number of times at random similarly equally, access style is at random changed.In another embodiment of the present invention, the process that inserts 27-28 among processing and above-mentioned Fig. 2 of number of times here at random is similar.
In addition, in above-mentioned regular 3, UE can preferentially select common E-DCH type to insert at random.
Equally, when B=A2 or B=A1, UE can confirm that said access style at random is RACH type or common E-DCH type, perhaps preferentially selects common E-DCH type to insert at random.
And the traffic carrying capacity threshold value A of the embodiment of the invention can also comprise more a plurality of threshold values.Above-mentioned variation all falls in the scope of the embodiment of the invention.
Fig. 3 is the schematic flow diagram of an example that sends the method for upstream data according to another embodiment of the present invention.11-12 in the method for Fig. 3 and the 11-12 of Fig. 1 are similar, therefore no longer are repeated in this description.Difference is that the method for Fig. 3 also comprises the steps.
31, UE determines whether to support the access style rollback.Though 31 carry out after 12 among Fig. 3,31 also can carry out before 11 or 12, perhaps carried out simultaneously with 11 or 12.
32, send the ability information whether expression supports the access style rollback to Node B, so that NodeB carries out resource distribution according to ability information.Can pass through signature, PRACH PSC (PrimaryScrambling Code; Main scrambler), information such as access slot is carried this ability information.
In another embodiment of the present invention, this ability information can refer to whether UE supports the access style rollback, can be meant that also UE judges whether that according to self service conditions needs carry out the rollback of access style.If UE supports the rollback of access style, and judge the rollback that can carry out access style according to the service conditions of self, then UE can support the rollback of access style through said method to the network side indication.If UE does not have the ability of supporting the access style rollback, but perhaps UE has the ability UE that supports the access style rollback and judges the rollback that cannot carry out access style according to the service conditions of self, and then UE does not report the ability of the rollback of supporting access style.For example, UE judges according to the service conditions of self and is meant that (A1 A2) judges whether to select RACH to carry out the transmission of upstream data bag to UE according to above-mentioned traffic carrying capacity threshold value A here.For example: if (A2＜B＜A1), then UE can carry out the rollback of access style to B＜A; If (B＞A1), then UE cannot carry out the rollback of access style to B＞A.
In order to ensure backwards compatibility, through SIB message arrangement common E-DCH resource the time, network side can be divided into two parts with common E-DCH resource.One of them part is that the resource that need not to carry out the UE that access style selects (do not have the rollback ability, perhaps have the rollback ability but this time insert and do not support or do not need rollback) disposes according to existing mode.Another part is for (supporting the rollback ability to the UE that possibly need access style to select; Perhaps UE have a rollback ability simultaneously according to the UE of above-mentioned threshold value A or A1 or A2 judgements needs rollback) resource/access parameter expand, for example add " extended common E-DCH system info " (expanding common E-DCH system information).If UE judges the rollback that maybe needs carries out access style according to current traffic carrying capacity, need select the access parameter that disposes among the extended common E-DCH system info when then inserting at random.Comprise Node B among the extendedcommon E-DCH system info and possibly distinguish the parameter whether UE supported or needed rollback, for example signature/PRACH PSC/access slot etc.The parameter of other resources is still in common E-DCH system info.The configuration mode of the embodiment of the invention is not limited to above-mentioned example.
33, UE monitors the rollback indication information, and for example (indication is caught in enhancing to EAI; Enhanced AcquisitionIndicator) or indicate the down physical channel (AICH for example of UE rollback; Absolute grant channel (E-AGCH; E-AGCH E-DCH Absolute Grant Channel E-DCH) or relative authorization channel (E-RACH; E-RGCH E-DCH Relative Grant Channel E-DCH), perhaps newly-increased rollback indicating channel) go up other rollback indication informations that send, in following embodiment with the example capable explanation of EAI as the rollback indication information.
For example, UE can be a common E-DCH type and inserting at random when being rejected at determined access style at random, i.e. AICH (Acquisition Indicator Channel; AICH Acquisition Indication Channel) is NACK (Negative Acknowledgement; The affirmation information of negating) time, monitor the rollback indication information.
Alternatively, as another embodiment, have at UE under the situation of the ability of supporting the access style rollback, UE can judge whether to carry out the rollback of type of service according to service conditions.Be judged as needs according to service conditions when carrying out the access style rollback, sending the information that expresses support for the access style rollback to base station equipment, so that base station equipment issues the rollback indication information according to this information.Base station equipment can also can be taken all factors into consideration the own service situation according to this rollback indication information of the information generating that expresses support for the access style rollback of UE transmission, judges whether to agree that UE carries out the access style rollback.
Perhaps; If UE does not support the access style rollback; Though perhaps UE supports the access style rollback but is judged as the rollback that need not carry out type of service according to service conditions; Then UE can send the information that the access style rollback is not supported in expression to base station equipment, perhaps also can not send any information to the base station.
34, UE confirms to carry out once more the type that inserts at random according to rollback indication information (for example EAI).If EAI is NACK, then UE withdraws from random access procedure.If EAI indication access style rollback; For example EAI is set to degradation (" level down ") or retry (" Retry to R99 "); Then UE (is considering under the situation of the frequency of failure next time; Can be following N time) change access style at random when inserting or sending next time (following N time) preamble (leading) at random; For example select the RACH resource to insert at random or, when receiving " leveldown ", select the common E-DCH access style of 10ms TTI in the common E-DCH resource of selecting 2ms TTI.Perhaps, UE judges whether still needs rollback according to the relation of current traffic carrying capacity and above-mentioned threshold value once more, ignores the rollback indication information if UE does not need rollback, continues to initiate to insert according to original access style at random.If UE needs rollback, then carry out back off procedure according to the indication of Node B, change original type that inserts at random.
In another embodiment of the present invention, UE confirms to carry out once more the type that inserts at random according to above-mentioned rollback indication information.If above-mentioned rollback indication information does not receive the rollback indication information for forbidding rollback or UE, then UE continues the execution of the access style at random random access procedure of original selection.If above-mentioned rollback indication information is the access style rollback; For example EAI is set to degradation (" level down ") or retry (" Retry to R99 "); Then UE (is considering under the situation of the frequency of failure next time; Can be following N time) change access style at random when inserting or sending next time (following N time) preamble at random; For example select the RACH resource to insert at random or, when receiving " level down ", select the common E-DCH access style of 10ms TTI in the common E-DCH resource of selecting 2ms TTI.
Replacedly, resource inserts if UE has selected common E-DCH, and AICH is NACK, then UE next time/select the RACH resource to insert at random when N time access/preamble sends at random.
Wherein can adopt any one conduct " level down " or " Retryto R99 " of current 32 indicating bits of EAI.For example, " level down " or " Retry to R99 " can replace current " NACK " position.
In another embodiment of the present invention; UE can at first select a kind of access style at random (for example: common E-DCH) carry out up access at random; Behind the rollback indication information in receiving step 33; If this rollback indication information indication UE access style rollback, UE can also judge whether the needs rollback according to the traffic carrying capacity threshold value among the embodiment of Fig. 1 and Fig. 2.If traffic carrying capacity lower (for example: be lower than threshold value A or A1/A2 in the foregoing description) then UE carry out 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 (for example: access at random common E-DCH) to carry out original access style.
In another embodiment of the present invention; UE can at first select a kind of access style at random (for example: common E-DCH), whether support the ability of access style rollback and the current traffic carrying capacity of UE when the UE basis and determine whether that needs change this access style at random of selecting in advance.For example; Also can pass through other access styles (for example: RACH inserts) when sending at this packet that inserts transmission at random, (reserved) signature/PRACH PSC/access slot that UE selects to keep is in order to support the rollback of access style to network side indication UE.Detect the access information of UE at Node B after, Node B can send the rollback indication information to UE, accomplishes the rollback of access style.
The rollback of access style promptly can refer to the change of common E-DCH to the RACH access style at random in the above-described embodiments, also can refer to the change of RACH to common E-DCH access style.
The different examples of the method that the initiation according to embodiment of the invention mode inserts have at random been described above, but the object lesson of the embodiment of the invention shown in being not limited to.For example, can these examples be made up, consider 2 threshold values and EAI indication simultaneously.
Traffic carrying capacity can be indicated the UE different business types in the above-described embodiments, also can indicate the size of the packet of UE transmission, perhaps refers to the size of RLC buffer memory.
In addition, when selecting at random access style, except when outside the preceding traffic carrying capacity B, the embodiment of the invention can be further considered the position of UE.For example, to the UE that supports that access style is selected, when UE is in cell edge, can pay the utmost attention to the trial that RACH inserts.
An expression parameter as terminal location can adopt circuit loss value (pathloss).The threshold value that needs network side configuration pathloss this moment.When the lower UE of traffic carrying capacity is in cell edge, then pay the utmost attention to the RACH type, otherwise pay the utmost attention to common E-DCH type.
In addition, though above a kind of common E-DCH type has only been described, the embodiment of the invention is not limited thereto.Can also segment common E-DCH type, for example be divided into 2ms commonE-DCH type and 10ms common E-DCH type.Increase that type establishes rules really then can be similar with each example recited above, for example increase corresponding threshold value, can be suitable for the embodiment of the invention equally.For avoiding repetition, repeat no more.
Therefore, the embodiment of the invention can be confirmed suitable up access style, thereby improve resource utilization and UE upstream data transmitting efficiency according to parameters such as the traffic carrying capacity of UE and/or pathloss.
Fig. 4 is the schematic block diagram according to the terminal equipment of the embodiment of the invention.The terminal equipment 40 of Fig. 4 comprises confirms unit 41 and access unit 42.
Confirm that unit 41 is used for confirming current business amount and traffic carrying capacity threshold value.
The embodiment of the invention makes that terminal equipment can be according to current traffic carrying capacity etc.; Select suitable access style at random; Thereby solved owing to only being confined to the wasting of resources and the delay that public enhancing dedicated channel type or RACH type cause, improved efficiency of resource.
Fig. 5 is the schematic block diagram according to an example of the terminal equipment of the embodiment of the invention.In the terminal equipment 50 of Fig. 5, with same or analogous part among Fig. 4, use same or analogous Reference numeral, and suitably omit its detailed description.
Terminal equipment 50 cell 41 ' really is used for confirming current business amount and traffic carrying capacity threshold value.Use at needs under the situation of a plurality of threshold values, confirm that unit 41 ' can confirm this a plurality of threshold values.For example, be similar to example recited above, confirm that unit 41 ' confirms first threshold value and second threshold value, wherein second threshold value is less than or equal to first threshold value.
Access unit 42 ' is confirmed access style at random according to the relation of current business amount and traffic carrying capacity threshold value.For example, during greater than the traffic carrying capacity threshold value, confirm that said access style at random is public enhancing dedicated channel type in the current business amount; During less than the traffic carrying capacity threshold value, confirm that said access style at random is the RACH type in the current business amount; When the current business amount equals the traffic carrying capacity threshold value, confirm that said access style at random is RACH type or public enhancing dedicated channel type.
Adopting under the situation of two threshold values, access unit 42 ' can during greater than first threshold value, confirm that said access style at random is public enhancing dedicated channel type in the current business amount; During less than said second threshold value, confirm that said access style at random is the RACH type in the current business amount; When the current business amount is between first threshold value and second threshold value, confirm that said access style at random is RACH type or public enhancing dedicated channel type.
In addition, under the situation of considering the frequency of failure, access unit 42 ' also is used for when attempting inserting k failure according to determined access style at random, changing access style at random, and wherein k is a positive integer.
Terminal equipment 50 also comprises indicating member 51 and/or monitoring unit 52.
Indicating member 51 is used to determine whether to support the access style rollback; And send the information whether expression supports the access style rollback to base station equipment; So that base station equipment (is for example carried out resource distribution according to this information; Distribute " extended common E-DCH system info " or " common E-DCH systeminfo ") or send the rollback indication information; For example base station equipment determines whether to agree rollback, and in the rollback indication information, carries the indication of whether agreeing rollback when receiving the information of expression terminal equipment support access style rollback.
For example; Indicating member 51 has at terminal equipment 50 under the situation of the ability of supporting the access style rollback, judges whether to carry out the rollback of type of service according to service conditions, when being judged as the rollback that need not carry out access style; Send the information that the access style rollback is not supported in expression to base station equipment; Perhaps, when being judged as the rollback that needs the execution access style, send the information that expresses support for the access style rollback to base station equipment.Alternatively, indicating member 51 can determine whether that needs change the access style of selecting in advance at random according to the current business amount, when confirming as the access style at random that needs change selection in advance, is judged as the rollback of carrying out type of service.
Monitoring unit 52 can receive the rollback indication information that base station equipment is sent according to the information that expresses support for the access style rollback.At this moment, access unit 42 ' is accomplished the rollback of access style according to the rollback indication information.
Alternatively, in another embodiment, it is public enhancing dedicated channel type and inserting at random when being rejected that monitoring unit 52 is used at determined access style at random, monitors the rollback indication information, for example EAI.In the case, access unit 42 ' also is used for confirming to carry out once more the type that inserts at random according to the rollback indication information.
In addition, under the situation of considering terminal location, access unit 42 ' is used for confirming access style at random according to the relation of current business amount and traffic carrying capacity threshold value and according to the position of terminal equipment 50.
Can also carry out the respective rule in above-mentioned described each method according to the terminal equipment 50 of the embodiment of the invention,, repeat no more for avoiding repetition.Said terminal equipment 50 with and the module that comprises or the concrete function and the course of work of unit, can repeat no more at this with reference to the detailed process of aforementioned terminals device, method embodiment.
Fig. 6 is the schematic block diagram according to the communication system of the embodiment of the invention.The communication system 60 of Fig. 6 comprises base station equipment 61 and terminal equipment 62.
The embodiment of the invention makes terminal equipment to select suitable access style at random according to current traffic carrying capacity, thereby has solved owing to only being confined to the wasting of resources and the delay that public enhancing dedicated channel type causes, and has improved efficiency of resource.
The various piece of communication system 60 can be carried out the respective process in each method recited above, for avoiding repetition, repeats no more.For example; At terminal equipment 62 when base station equipment 61 is sent expression terminal equipments 62 and whether is supported the information of access style rollback; Base station equipment 61 receives this information; And carry out resource distribution (for example, distribute " extended common E-DCH system info " or " common E-DCH system info ") or send the rollback indication information according to this information.
The concrete function of base station equipment 61 and the course of work can repeat no more at this with reference to the detailed process that relates to base station equipment among the preceding method embodiment.
Those of ordinary skills can recognize; The unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein; Can realize with electronic hardware, computer software or the combination of the two; For the interchangeability of hardware and software clearly is described, the composition and the step of each example described prevailingly according to function in above-mentioned explanation.These functions still are that software mode is carried out with hardware actually, depend on the application-specific and the design constraint of technical scheme.The professional and technical personnel can use distinct methods to realize described function to each certain applications, but this realization should not thought and exceeds scope of the present invention.
The those skilled in the art can be well understood to, for the convenience described with succinct, the concrete course of work of the system of foregoing description, device and unit can repeat no more at this with reference to the corresponding process among the preceding method embodiment.
In several embodiment that the application provided, should be understood that the system that is disclosed, apparatus and method can realize through other mode.For example, device embodiment described above only is schematically, for example; The division of said unit; Only be that a kind of logic function is divided, during actual the realization other dividing mode can be arranged, for example a plurality of unit or assembly can combine or can be integrated into another system; Or some characteristics can ignore, or do not carry out.Another point, the coupling each other that shows or discuss or directly coupling or communication to connect can be through some interfaces, the INDIRECT COUPLING of device or unit or communication connect, and can be electrically, machinery or other form.
Said unit as separating component explanation can or can not be physically to separate also, and the parts that show as the unit can be or can not be physical locations also, promptly can be positioned at a place, perhaps also can be distributed on a plurality of NEs.Can realize the purpose of present embodiment scheme according to the needs selection some or all of unit wherein of reality.
In addition, each functional unit in each embodiment of the present invention can be integrated in the processing unit, also can be that the independent physics in each unit exists, and also can be integrated in the unit two or more unit.Above-mentioned integrated unit both can adopt the form of hardware to realize, also can adopt the form of SFU software functional unit to realize.
If said integrated unit is realized with the form of SFU software functional unit and during as independently production marketing or use, can be stored in the computer read/write memory medium.Based on such understanding; Part or all or part of of this technical scheme that technical scheme of the present invention contributes to prior art in essence in other words can come out with the embodied of software product; This computer software product is stored in the storage medium; Comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out all or part of step of the said method of each embodiment of the present invention.And aforesaid storage medium comprises: and USB flash disk, portable hard drive, read-only memory (ROM, Read-OnlyMemory), various media that can be program code stored such as random access memory (RAM, Random Access Memory), magnetic disc or CD.
The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; Can expect easily changing or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by said protection range with claim.
Claims (29)
1. a method that inserts at random is characterized in that, comprising:
Confirm current business amount and traffic carrying capacity threshold value;
Relation according to said current business amount and traffic carrying capacity threshold value is confirmed access style at random.
2. the method for claim 1 is characterized in that, said definite traffic carrying capacity threshold value comprises:
Reception is perhaps adopted the traffic carrying capacity threshold value of making an appointment by the traffic carrying capacity threshold value of network side configuration.
3. the method for claim 1 is characterized in that, confirms that according to the relation of said current business amount and traffic carrying capacity threshold value access style comprises at random:
During greater than said traffic carrying capacity threshold value, confirm that said access style at random is public enhancing dedicated channel type in said current business amount; Or,
During less than said traffic carrying capacity threshold value, confirm that said access style at random is the RACH type in said current business amount; Or,
When said current business amount equals said traffic carrying capacity threshold value, confirm that said access style at random is RACH type or public enhancing dedicated channel type.
4. the method for claim 1 is characterized in that, said definite traffic carrying capacity threshold value comprises:
Confirm first threshold value;
Confirm second threshold value, wherein said second threshold value is less than or equal to said first threshold value,
Wherein, confirm that according to the relation of said current business amount and traffic carrying capacity threshold value access style comprises at random:
During greater than said first threshold value, confirm that said access style at random is public enhancing dedicated channel type in said current business amount; Or,
During less than said second threshold value, confirm that said access style at random is the RACH type in said current business amount; Or,
Be less than or equal to said first threshold value and during more than or equal to said second threshold value, confirm that said access style at random is RACH type or public enhancing dedicated channel type in said current business amount.
5. like claim 3 or 4 described methods, it is characterized in that, confirm that said access style at random is that RACH type or public enhancing dedicated channel type comprise: preferentially select said public enhancing dedicated channel type.
6. the method for claim 1 is characterized in that, also comprises:
When attempting inserting k failure according to determined access style at random, change access style at random, wherein k is a positive integer.
7. method as claimed in claim 6 is characterized in that, also comprises:
Reception is perhaps adopted the k value of making an appointment by the k value of network side configuration.
8. the method for claim 1 is characterized in that, also comprises:
Determine whether to support the access style rollback;
Send the information whether expression supports the access style rollback to base station equipment, so that said base station equipment is carried out resource distribution according to said information.
9. whether method as claimed in claim 8 is characterized in that, send expression to base station equipment and support the information of access style rollback to comprise:
In signing messages, Physical Random Access Channel master scrambler or access slot information, carry the information whether said expression supports the access style rollback.
10. whether method as claimed in claim 8 is characterized in that, under the situation with ability of supporting the access style rollback, saidly send expression to base station equipment and support the information of access style rollback to comprise:
Judge whether to carry out the rollback of type of service according to service conditions;
When being judged as the rollback that need not carry out access style, send the information that the access style rollback is not supported in expression to base station equipment, perhaps, when being judged as the rollback that needs the execution access style, send the information that expresses support for the access style rollback to base station equipment.
11. method as claimed in claim 10 is characterized in that, saidly judges whether that according to service conditions the rollback of carrying out type of service comprises:
Determine whether that according to said current business amount needs change the access style of selecting in advance at random;
When confirming as the access style at random that needs change selection in advance, be judged as the rollback of carrying out type of service.
12. method as claimed in claim 10 is characterized in that, also comprises:
Receive the rollback indication information that said base station equipment is sent according to the said information that expresses support for the access style rollback;
Accomplish the rollback of access style according to said rollback indication information.
13. method as claimed in claim 10 is characterized in that, saidly sends the information express support for the access style rollback to base station equipment, comprising:
The ability information of in the signing messages, Physical Random Access Channel master scrambler or the access slot information that keep, carrying said support access style rollback.
14. the method for claim 1 is characterized in that, also comprises:
At determined access style at random is public enhancing dedicated channel type and inserting at random when being rejected, and monitors the rollback indication information;
Confirm to carry out once more the type that inserts at random according to said rollback indication information.
15. method as claimed in claim 14 is characterized in that, confirms that according to said rollback indication information carrying out the type that inserts at random once more comprises:
When said rollback indication information was indicated the access style rollback, the type that inserts was at random carried out in change once more.
16. method as claimed in claim 15 is characterized in that, said rollback indication information is caught indication EAI for strengthening.
17. method as claimed in claim 16 is characterized in that, said EAI indication degradation or retry.
18. the method for claim 1 is characterized in that, confirms that according to the relation of said current business amount and traffic carrying capacity threshold value access style comprises at random:
Confirm access style at random according to the relation of said current business amount and traffic carrying capacity threshold value and according to the position of terminal equipment.
19. a terminal equipment is characterized in that, comprising:
Confirm the unit, be used for confirming current business amount and traffic carrying capacity threshold value;
Access unit is used for confirming access style at random according to the relation of said current business amount and traffic carrying capacity threshold value.
20. terminal equipment as claimed in claim 19 is characterized in that, said access unit:
During greater than said traffic carrying capacity threshold value, confirm that said access style at random is public enhancing dedicated channel type in said current business amount;
During less than said traffic carrying capacity threshold value, confirm that said access style at random is the RACH type in said current business amount;
When said current business amount equals said traffic carrying capacity threshold value, confirm that said access style at random is RACH type or public enhancing dedicated channel type.
21. terminal equipment as claimed in claim 19 is characterized in that,
Said definite unit:
Confirm first threshold value;
Confirm second threshold value, wherein said second threshold value is less than or equal to said first threshold value,
Said access unit:
During greater than said first threshold value, confirm that said access style at random is public enhancing dedicated channel type in said current business amount;
During less than said second threshold value, confirm that said access style at random is the RACH type in said current business amount;
Be less than or equal to said first threshold value and during more than or equal to said second threshold value, confirm that said access style at random is RACH type or public enhancing dedicated channel type in said current business amount.
22. terminal equipment as claimed in claim 19 is characterized in that,
Said access unit also is used for when attempting inserting k failure according to determined access style at random, changing access style at random, and wherein k is a positive integer.
23. terminal equipment as claimed in claim 19 is characterized in that, also comprises:
Indicating member is used to determine whether to support the access style rollback, and sends the information whether expression supports the access style rollback to base station equipment.
24. terminal equipment as claimed in claim 23 is characterized in that,
Said indicating member; Be used for having under the situation of the ability of supporting the access style rollback, judge whether to carry out the rollback of type of service according to service conditions, when being judged as the rollback that need not carry out access style at said terminal equipment; Send the information that the access style rollback is not supported in expression to base station equipment; Perhaps, when being judged as the rollback that needs the execution access style, send the information that expresses support for the access style rollback to base station equipment.
25. terminal equipment as claimed in claim 24 is characterized in that, also comprises:
Monitoring unit is used to receive the rollback indication information that said base station equipment is sent according to the said information that expresses support for the access style rollback,
Said access unit also is used for the rollback according to said rollback indication information completion access style.
26. terminal equipment as claimed in claim 19 is characterized in that, also comprises:
Monitoring unit, being used at determined access style at random is public enhancing dedicated channel type and inserting at random when being rejected, and monitors the rollback indication information,
Said access unit also is used for confirming to carry out once more the type that inserts at random according to said rollback indication information.
27. terminal equipment as claimed in claim 19 is characterized in that,
Said access unit is used for confirming access style at random according to the relation of said current business amount and traffic carrying capacity threshold value and according to the position of terminal equipment.
28. a communication system is characterized in that, comprises that said terminal equipment is communicated by letter with a base station equipment like each described terminal equipment among the claim 19-27.
29. communication system as claimed in claim 28 is characterized in that,
Said base station equipment receives the information whether said terminal equipment of expression supports the access style rollback;
Said base station equipment according to the said information of whether supporting the access style rollback, is carried out resource distribution or is sent the rollback indication information to said 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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| CN201110084143.1 | 2011-04-02 | ||
| CN201110084143 | 2011-04-02 | ||
| CN201110224472.1A CN102740495B (en) | 2011-04-02 | 2011-08-05 | The method of Stochastic accessing, terminal equipment and communication system |
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| CN102740495A true CN102740495A (en) | 2012-10-17 |
| CN102740495B CN102740495B (en) | 2016-01-06 |
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| CN102740495B (en) | 2016-01-06 |
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